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101. Basic engineering for the design of an electrical substation 115-34.5 kV feeding a hydrocarbon processing plant

Author: Briceño Vicente, Wendy Carolina, Universidad Central de Venezuela, UNIVERSIDAD CENTRAL DE VENEZUELA, and Universidad Central de Venezuela (UCV)
Subjects: Bachelor degree, Puesta a tierra, [SPI.NRJ]Engineering Sciences [physics]/Electric power, Flujo de carga, Alimentadores en 34.5 kV, Sistemas de iluminación, [SPI]Engineering Sciences [physics], Cortocircuito, [ SPI.NRJ ] Engineering Sciences [physics]/Electric power, Protección contra rayos, Subestación eléctrica, Arranque de motores, [ SPI ] Engineering Sciences [physics], Barras en 115 kV, Sistemas auxiliares, Ingeniería básica
Abstract: El siguiente trabajo comprende el conjunto de actividades necesarias para el diseño eléctrico realizado por Empresas Y&V, a nivel de ingeniería básica de la subestación eléctrica Q propiedad de PDVSA, para la extracción, recolección y transporte de crudo desde el Campo de Tomoporo en el estado Trujillo, hasta el Patio de Tanques de Bachaquero en el estado Zulia. El sistema eléctrico del Área de Tomoporo consta de una subestación fuente, subestación P de PDVSA que se encarga de alimentar a la subestación Q por medio de dos (2) líneas aéreas de transmisión en 115 kV, simple terna; la subestación Q será bajo un esquema de interruptor y medio, inicialmente de cuatro (4) bahías con espacio para dos (2) bahías adicionales, con sus salidas dirigidas a dos (2) centros de distribución de potencia, arreglo secundario selectivo y enlace de barras normalmente abierto, destinados a alimentar una Unidad Principal de Procesos y al área de las Macollas. El diseño de la subestación eléctrica Q comprendió desde la realización de estudios de flujo de carga, cortocircuito y arranque de motores hasta la selección y dimensionamiento de las barras en 115 kV, alimentadores en 34,5 kV, sistema de puesta a tierra, sistema de protección contra rayos, sistemas auxiliares, sistemas de iluminación, especificaciones de los equipos de largo tiempo de entrega, lista de materiales y demás elementos a conectar al sistema eléctrico, bajo los principios de confiabilidad y seguridad estandarizados por PDVSA; además de la realización de un procedimiento de diseño de subestaciones tipo intemperie para el sistema de calidad de Y&V ingeniería y construcción.; The following work comprises the set of activities necessary for the electrical design carried out by Empresas Y&V, at the basic engineering level of the Q substation owned by PDVSA, for the extraction, collection and transportation of crude oil from the Campo de Tomoporo in the state of Trujillo. , to the Bachaquero Tank Yard in Zulia state. The electrical system of the Tomoporo Area consists of a source substation, PDVSA P substation that is responsible for supplying substation Q through two (2) overhead transmission lines at 115 kV, single triplet; the Q substation will be under a switch and a half scheme, initially four (4) bays with space for two (2) additional bays, with its outputs directed to two (2) power distribution centers, selective secondary arrangement and connection of Normally open bars, destined to feed a Main Process Unit and the Macollas area. The design of the Q substation ranged from carrying out load flow, short-circuit and motor start studies to the selection and sizing of the 115 kV busbars, 34.5 kV feeders, earthing system, lightning protection, auxiliary systems, lighting systems, specifications for long-term delivery equipment, bill of materials and other elements to be connected to the electrical system, under the principles of reliability and safety standardized by PDVSA; in addition to carrying out a design procedure for open-air substations for the Y&V engineering and construction quality system.; El siguiente trabajo comprende el conjunto de actividades necesarias para el diseño eléctrico realizado por Empresas Y&V, a nivel de ingeniería básica de la subestación eléctrica Q propiedad de PDVSA, para la extracción, recolección y transporte de crudo desde el Campo de Tomoporo en el estado Trujillo, hasta el Patio de Tanques de Bachaquero en el estado Zulia. El sistema eléctrico del Área de Tomoporo consta de una subestación fuente, subestación P de PDVSA que se encarga de alimentar a la subestación Q por medio de dos (2) líneas aéreas de transmisión en 115 kV, simple terna; la subestación Q será bajo un esquema de interruptor y medio, inicialmente de cuatro (4) bahías con espacio para dos (2) bahías adicionales, con sus salidas dirigidas a dos (2) centros de distribución de potencia, arreglo secundario selectivo y enlace de barras normalmente abierto, destinados a alimentar una Unidad Principal de Procesos y al área de las Macollas. El diseño de la subestación eléctrica Q comprendió desde la realización de estudios de flujo de carga, cortocircuito y arranque de motores hasta la selección y dimensionamiento de las barras en 115 kV, alimentadores en 34,5 kV, sistema de puesta a tierra, sistema de protección contra rayos, sistemas auxiliares, sistemas de iluminación, especificaciones de los equipos de largo tiempo de entrega, lista de materiales y demás elementos a conectar al sistema eléctrico, bajo los principios de confiabilidad y seguridad estandarizados por PDVSA; además de la realización de un procedimiento de diseño de subestaciones tipo intemperie para el sistema de calidad de Y&V ingeniería y construcción.
Published: 2006

102. On the second moment of the number of crossings by a stationary Gaussian process

Author: José R. León, Marie Kratz, Mathématiques Appliquées Paris 5 (MAP5 - UMR 8145), Université Paris Descartes - Paris 5 (UPD5)-Institut National des Sciences Mathématiques et de leurs Interactions (INSMI)-Centre National de la Recherche Scientifique (CNRS), Statistique Appliquée et MOdélisation Stochastique (SAMOS), Université Paris 1 Panthéon-Sorbonne (UP1), Centre d'économie de la Sorbonne (CES), Université Paris 1 Panthéon-Sorbonne (UP1)-Centre National de la Recherche Scientifique (CNRS), Escuela de Matematicas [Caracas], Universidad Central de Venezuela (UCV), Mathématiques Appliquées à Paris 5 ( MAP5 - UMR 8145 ), Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National des Sciences Mathématiques et de leurs Interactions-Centre National de la Recherche Scientifique ( CNRS ), Statistique Appliquée et MOdélisation Stochastique ( SAMOS ), Université Panthéon-Sorbonne ( UP1 ), Centre d'économie de la Sorbonne ( CES ), Université Panthéon-Sorbonne ( UP1 ) -Centre National de la Recherche Scientifique ( CNRS ), UNIVERSIDAD CENTRAL DE VENEZUELA, Université Panthéon-Sorbonne (UP1), and Centre National de la Recherche Scientifique (CNRS)-Université Panthéon-Sorbonne (UP1)
Subjects: Statistics and Probability, 60G70, Covariance function, Generalization, Gaussian processes, Second moment of area, AMS Primary 60G15, Secondary 60G10, 60G70, Finite variance, 01 natural sciences, 010104 statistics & probability, symbols.namesake, [MATH.MATH-ST]Mathematics [math]/Statistics [math.ST], spectral moment, FOS: Mathematics, level curve, [ MATH.MATH-ST ] Mathematics [math]/Statistics [math.ST], Differentiable function, 0101 mathematics, Gaussian process, Mathematics, Discrete mathematics, Hermite polynomials, Probability (math.PR), 010102 general mathematics, [STAT.TH]Statistics [stat]/Statistics Theory [stat.TH], 16. Peace & justice, [ STAT.TH ] Statistics [stat]/Statistics Theory [stat.TH], crossings, Geman condition, [MATH.MATH-PR]Mathematics [math]/Probability [math.PR], 60G15, symbols, 60G15 (Primary) 60G10, 60G70 (Secondary), Statistics, Probability and Uncertainty, [ MATH.MATH-PR ] Mathematics [math]/Probability [math.PR], 60G10, Mathematics - Probability
Abstract: Cram\'{e}r and Leadbetter introduced in 1967 the sufficient condition \[\frac{r''(s)-r''(0)}{s}\in L^1([0,\delta],dx),\qquad \delta>0,\] to have a finite variance of the number of zeros of a centered stationary Gaussian process with twice differentiable covariance function $r$. This condition is known as the Geman condition, since Geman proved in 1972 that it was also a necessary condition. Up to now no such criterion was known for counts of crossings of a level other than the mean. This paper shows that the Geman condition is still sufficient and necessary to have a finite variance of the number of any fixed level crossings. For the generalization to the number of a curve crossings, a condition on the curve has to be added to the Geman condition., Comment: Published at http://dx.doi.org/10.1214/009117906000000142 in the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Published: 2006
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103. Mapping Gully Erosion Variability and Susceptibility Using Remote Sensing, Multivariate Statistical Analysis, and Machine Learning in South Mato Grosso, Brazil

Author: Tarik Bouramtane, Halima Hilal, Ary Tavares Rezende-Filho, Khalil Bouramtane, Laurent Barbiero, Shiny Abraham, Vincent Valles, Ilias Kacimi, Hajar Sanhaji, Laura Torres-Rondon, Domingos Dantas de Castro, Janaina da Cunha Vieira Santos, Jamila Ouardi, Omar El Beqqali, Nadia Kassou, Moad Morarech, Université Mohammed V de Rabat [Agdal] (UM5), Universidade Federal de Mato Grosso do Sul (UFMS), Université Sidi Mohamed Ben Abdellah (USMBA), Géosciences Environnement Toulouse (GET), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Seattle University [Seattle], Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes (EMMAH), Avignon Université (AU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Instituto de Ciencias de la Terra [Caracas] (ICT), Universidad Central de Venezuela (UCV), Universidade Federal de Mato Grosso (UFMT), Faculté des Sciences [El Jadida. Maroc], Université Chouaib Doukkali (UCD), Laboratoire Informatique, Imagerie & Analyse Numérique (LIIAN), Université Sidi Mohamed Ben Abdellah (USMBA)-Faculté des Sciences Dhar El Mehraz, and Université Abdelmalek Essaâdi (UAE)
Subjects: gully erosion, machine learning, principal components analysis, natural hazard, random forest, General Earth and Planetary Sciences, [SDU.STU.AG]Sciences of the Universe [physics]/Earth Sciences/Applied geology
Abstract: International audience; In Brazil, the development of gullies constitutes widespread land degradation, especially in the state of South Mato Grosso, where fighting against this degradation has become a priority for policy makers. However, the environmental and anthropogenic factors that promote gully development are multiple, interact, and present a complexity that can vary by locality, making their prediction difficult. In this framework, a database was constructed for the Rio Ivinhema basin in the southern part of the state, including 400 georeferenced gullies and 13 geo-environmental descriptors. Multivariate statistical analysis was performed using principal component analysis (PCA) to identify the processes controlling the variability in gully development. Susceptibility maps were created through four machine learning models: multivariate discriminant analysis (MDA), logistic regression (LR), classification and regression tree (CART), and random forest (RF). The predictive performance of the models was analyzed by five evaluation indices: accuracy (ACC), sensitivity (SST), specificity (SPF), precision (PRC), and Receiver Operating Characteristic curve (ROC curve). The results show the existence of two major processes controlling gully erosion. The first is the surface runoff process, which is related to conditions of slightly higher relief and higher rainfall. The second also reflects high surface runoff conditions, but rather related to high drainage density and downslope, close to the river network. Human activity represented by peri-urban areas, construction of small earthen dams, and extensive rotational farming contribute significantly to gully formation. The four machine learning models yielded fairly similar results and validated susceptibility maps (ROC curve > 0.8). However, we noted a better performance of the random forest (RF) model (86% and 89.8% for training and test, respectively, with an ROC curve value of 0.931). The evaluation of the contribution of the parameters shows that susceptibility to gully erosion is not governed primarily by a single factor, but rather by the interconnection between different factors, mainly elevation, geology, precipitation, and land use.
Published: 2022
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104. Kac-Rice Formula: A contemporary overview of the main results and applications

Author: Berzin, Corinne, Latour, Alain, León, José, Inférence Processus Stochastiques (IPS), Laboratoire Jean Kuntzmann (LJK), Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), Instituto de Matemática y Estadística Rafael Laguardia [Montevideo] (IMERL), Universidad de la República [Montevideo] (UDELAR), and Universidad Central de Venezuela (UCV)
Subjects: [MATH.MATH-PR]Mathematics [math]/Probability [math.PR], Mathematics - Classical Analysis and ODEs, [MATH.MATH-ST]Mathematics [math]/Statistics [math.ST], Probability (math.PR), Classical Analysis and ODEs (math.CA), FOS: Mathematics, Mathematics - Statistics Theory, Statistics Theory (math.ST), [MATH.MATH-CA]Mathematics [math]/Classical Analysis and ODEs [math.CA], Mathematics - Probability
Abstract: The book develops the fundamental ideas of the famous Kac-Rice formula for vectorvalued random fields. This formula allows to compute the expectation and moments of the measure, and integrals with respect to this measure, of the sets of levels of such fields. After a presentation of the historical context of the Kac-Rice formula, we give an elementary demonstration of the co-area formula. This formula replaces the change of variable formula in multiple integrals and a direct application of this formula gives the Kac-Rice formula for almost all levels. We emphasize the necessity of having the formula for all levels, because for some applications one needs, for example, the formula for level zero.
Published: 2022

105. Impact on oral health-quality of life in infants: Multicenter study in Latin American countries

Author: Saul Martins Paiva, Letícia Pereira Martins, Jéssica Madeira Bittencourt, Licet Alvarez, Ana Maria Acevedo, Verónica Cepeda, Carmen Aminta Galvez, Cassia Gaberllini, Sylvia Gudiño, Stefania Martignon, Vidal Pérez, Olga Zambrano, Diana Zelada, Rita S. Villena, Pablo Salgado, Aldo Squassi, Noemi E. Bordoni, Paiva Saul Martins, Universidade Federal de Minas Gerais - UFMG, Department of Pediatric Dentistry, Belo Horizonte, MG, Brasil., Martins Letícia Pereira, Universidade Federal de Minas Gerais - UFMG, Department of Pediatric Dentistry, Belo Horizonte, MG, Brasil., Bittencourt Jéssica Madeira, Universidade Federal de Minas Gerais - UFMG, Department of Pediatric Dentistry, Belo Horizonte, MG, Brasil., Alvarez Loureiro Licet, Universidad de la República Uruguay - UDELAR, Department of Pediatric Dentistry. Montevideo, Uruguay, Acevedo Ana Maria, Universidad Central de Venezuela, Dentistry Faculty, Dental Research Institute, Caracas, Venezuela, Cepeda Verónica, Universidad Internacional del Ecuador(UIDE), Escuela de Odontología. Quito, Ecuador, Galvez Carmen Aminta, Ministerio de Salud de Panamá, Panamá., Gaberllini Cassia, Universidade Estadual de Londrina- UEL, Children´s Especiality Clinic Director, Bebê Clinica. Londrina, PR, Brasil, Gudiño Sylvia, Universidad de Costa Rica. Pediatric Dentistry Master, San José Postgraduate Study Sistem. Costa Rica, Martignon Stefania, Universidad El Bosque- UEB, Profesor, ÚNICA - Caries Research Unit, Research Department, Bogotá, Colombia, Pérez Vidal, Universidad de Talca, Department of Pediatric Dentistry. Talca, Chile., Zambrano Olga, Universidad del Zulia, Maracaibo- Zulia, Venezuela., Zelada Diana, Universidad San Martin de Porres - USMP, Department of Pediatric Dentistry. Lima, Perú., Villena Rita S, Universidad San Martin de Porres - USMP, Department of Pediatric Dentistry. Lima, Perú., Salgado Pablo, Universidad de Buenos Aires - UBA, Research in Public Health Institute, Buenos Aires, Argentina, Squassi Aldo, Universidad de Buenos Aires - UBA, Research in Public Health Institute, Buenos Aires, Argentina, and Bordoni Noemi E., Universidad de Buenos Aires - UBA, Research in Public Health Institute, Buenos Aires, Argentina
Subjects: Parents, Quality of life, child, DESARROLLO INFANTIL, Adolescent, Infant, Oral Health, CARIES DENTAL, Dental Caries, health-related quality of life, Cross-Sectional Studies, Latin America, Child, Preschool, Surveys and Questionnaires, CALIDAD DE VIDA, Quality of Life, Humans, oral health, Health related quality of life, epidemiology, SALUD BUCAL, Child, General Dentistry
Abstract: To assess the impact of oral conditions on oral health-related quality of life (OHRQoL) in infants in ten Latin America countries (LAC). A cross-sectional study was conducted with 930 pairs of 1-to-3-year-old children/parents from 10 LAC, as a complementary study of the Research Observatory for Dental Caries of the Latin American Region. The scale ECOHIS, previously tested and valid in ten countries, was applied to parents/caregivers of children to measure OHRQoL. Statistical analysis included descriptive data analysis and one-way analysis of variance (ANOVA-One-Way) were performed to compare age groups with OHRQoL. Bootstrapping procedures (1000 re-samplings; 95%CI Bca) were performed. The mean scores of the ‘Child Impact’ section in the LAC was 4.0(±8.3), in the ‘Family Impact’ section was 2.0(±4.0), and in overall ECOHIS score was 6.0(±12.0). In the ‘Child Impact’ section, Argentina 10.0(+2.4) and Venezuela 17.8(±17.5) demonstrated mean scores higher than the LAC total data. In the ‘Family Impact’ section, the countries with higher mean scores were Argentina 4.9(±2.0), Ecuador 2.1(±3.1) and Venezuela 7.9(±7.8). In the overall ECOHIS score, Argentina 15.1 (±4.1) and Venezuela 25.7(±25.2) has higher mean scores than the values of LAC. There is an association between children's age and parents' report of impact on the OHRQoL (p
Published: 2022

106. High pressure and high temperature investigations of asphaltene stability using an extrinsic refractometer

Author: Castillo, J., Acevedo, S., Canelon, Carlos, Carrier, Hervé, Daridon, Jean-Luc, Laboratorio de Fisicoquimica de hidrocarburos (Escuela de quimica), Universidad Central de Venezuela (UCV), Facultad de Sciencias - Escuela de chimica (Universidad central de Venezuela), Thermodynamique et Energétique des fluides complexes (TEFC), and Université de Pau et des Pays de l'Adour (UPPA)-TOTAL SA-Centre National de la Recherche Scientifique (CNRS)
Subjects: [PHYS.PHYS.PHYS-CHEM-PH]Physics [physics]/Physics [physics]/Chemical Physics [physics.chem-ph], ComputingMilieux_MISCELLANEOUS
Abstract: International audience
Published: 2005

107. Convergence in fractional models

Author: Berzin , Corinne, León , José R., Laboratoire de Statistiques et Analyse des Données (LABSAD), Université Pierre Mendès France - Grenoble 2 (UPMF), Universidad Central de Venezuela (UCV), Project 'Modelaje Estocástico Aplicado' of the Agenda Petróleo of FONACIT Venezuela, Laboratoire de Statistiques et Analyse des Données ( LABSAD ), Université Pierre Mendès France - Grenoble 2 ( UPMF ), Escuela de Matematicas [Caracas], and UNIVERSIDAD CENTRAL DE VENEZUELA
Subjects: Level crossings, [MATH.MATH-PR]Mathematics [math]/Probability [math.PR], local time, fractional Brownian motion, limit theorem, Primary 60F05, Secondary 60G15, 60G18, 60H10, 62F03, [ MATH.MATH-PR ] Mathematics [math]/Probability [math.PR], rate of convergence
Abstract: http://www.math.washington.edu/~ejpecp/; International audience; We consider a fractional Brownian motion with Hurst parameter strictly between 0 and 1. We are interested in the asymptotic behaviour of functionals of the increments of this and related processes and we propose several probabilistic and statistical applications.
Published: 2005
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108. Convergence of non-linear functionals of smoothed empirical processes and kernel density estimates

Author: Berzin , Corinne, León , José R., Ortega , Joaquín, Laboratoire de Statistiques et Analyse des Données ( LABSAD ), Université Pierre Mendès France - Grenoble 2 ( UPMF ), Universidad Central de Venezuela, UNIVERSIDAD CENTRAL DE VENEZUELA, Instituto Venezolano de Investigaciones Cientificas ( IVIC ), and CONICIT project 'Fortalecimiento de Centros' for the IVIC Depto. of Matemáticas, Venezuela
Subjects: Kernel density estimation, Crossings, Non-linear functionals, Regularization by convolution, Kullback-Leibler deviation, Empirical process, [ MATH.MATH-PR ] Mathematics [math]/Probability [math.PR]
Abstract: International audience; We consider regularizations by convolution of the empirical process and study the asymptotic behaviour of nonlinear functionals of this process. Using a result for the same type of non-linear functionals of the Brownian bridge, shown in a previous paper [4], and a strong approximation theorem, we prove several results for the p-deviation in estimation of the derivatives of the density. We also study the asymptotic behaviour of the number of crossings of the smoothed empirical process defined by Yukich [17] and of a modified version of the Kullback deviation
Published: 2003
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109. Hydrocarbures, production agroalimentaire et transition énergétique en Amérique latine : éléments théoriques de débat

Author: Arnoldo Pirela, Luis Orozco, Martine Guibert, Denis Requier-Desjardins, Laboratoire d'Etude et de Recherche sur l'Economie, les Politiques et les Systèmes Sociaux (LEREPS), Université Toulouse 1 Capitole (UT1), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Université Toulouse - Jean Jaurès (UT2J)-Institut d'Études Politiques [IEP] - Toulouse-École Nationale Supérieure de Formation de l'Enseignement Agricole de Toulouse-Auzeville (ENSFEA), Centre population et développement (CEPED - UMR_D 196), Institut de Recherche pour le Développement (IRD)-Université de Paris (UP), Centro de estudios del desarollo (CENDES), Universidad Central de Venezuela (UCV), Laboratoire Interdisciplinaire Solidarités, Sociétés, Territoires (LISST), and École des hautes études en sciences sociales (EHESS)-Université Toulouse - Jean Jaurès (UT2J)-Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure de Formation de l'Enseignement Agricole de Toulouse-Auzeville (ENSFEA)
Subjects: lcsh:Latin America. Spanish America, 0211 other engineering and technologies, 02 engineering and technology, 010501 environmental sciences, 01 natural sciences, industria agroalimentaria, lcsh:Social Sciences, América Latina, 021108 energy, hydrocarbons, development, 0105 earth and related environmental sciences, développement, 2. Zero hunger, agrifood, lcsh:French literature - Italian literature - Spanish literature - Portuguese literature, transición, lcsh:F1201-3799, hidrocarburos, transition, General Medicine, desarrollo, Amérique latine, [SHS.ECO]Humanities and Social Sciences/Economics and Finance, América latina, lcsh:H, Latin America, 13. Climate action, agroalimentaire, lcsh:PQ1-3999, hydrocarbures
Abstract: Le changement climatique représente pour l’Amérique latine un double défi pour le secteur agricole et pour l’exploitation de son principal avantage comparatif : les ressources fossiles. L’objectif de cet article est d’apporter des éléments théoriques de débat, à partir de la littérature existante, sur les convergences/divergences technologiques en Amérique latine entre les chaînes de valeur des hydrocarbures et celles du secteur agroalimentaire, dans un contexte de transition énergétique. El cambio climático plantea una doble amenaza para América Latina, tanto para la producción agrícola como para la explotación de su principal ventaja comparativa : los recursos fósiles. El objetivo de este artículo es abordar la convergencia/divergencia tecnológica en América Latina entre las cadenas de valor de los hidrocarburos y el sector agroalimentario dentro de la transición energética. Este trabajo teórico se basa en la literatura existente. Climate change poses a double threat to Latin America, both to agricultural production and to the exploitation of its main comparative advantage ; fossil resources. This paper’s aim is to tackle the technological convergence/divergence in Latin America between the hydrocarbon and agrifood value chains in a context of energy transition. This theoretical work is based on existing literature.
Published: 2020
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110. Expression of caveolin-1 in tooth germ, ameloblastoma and ameloblastic carcinoma

Author: Estefanía Sicco, Mariana Villarroel-Dorrego, Rogelio González-González, Celeste Sánchez-Romero, Ramón Gil Carreón-Burciaga, Gabriel Tapia-Repetto, Vanesa Pereira-Prado, Nelly Molina-Frechero, Marco Meleti, Mariana Suarez, Ronell Bologna-Molina, Sánchez Romero Celeste, PhD. Molecular Pathology Area, Faculty of Dentistry, University of the Republic, Uruguay, Pereira Prado Vanesa, MSc. Molecular Pathology Area, Faculty of Dentistry, University of the Republic, Uruguay, Sicco Estefanía, MSc. Molecular Pathology Area, Faculty of Dentistry, University of the Republic, Uruguay, Suarez Mariana, MSc. Molecular Pathology Area, Faculty of Dentistry, University of the Republic, Uruguay, Tapia Repetto Gabriel, MSc. Molecular Pathology Area, Faculty of Dentistry, University of the Republic, Uruguay, Carreón Burciaga Ramón Gil, PhD. Oral Pathology, school of Dentistry, Universidad Juarez del Estado de Durango, Mexico, González González Rogelio, PhD. Oral Pathology, school of Dentistry, Universidad Juarez del Estado de Durango, Mexico, Villarroel Dorrego Mariana, PhD. Oral Histopathology Laboratory, Universidad Central de Venezuela, Venezuela, Meleti Marco, PhD. Department of Medicine and Surgery, Oral Medicine and Laser Surgery Unit, Centro Universitario di Odontoiatria, Uni versity of Parma, Italy, Molina Frechero Nelly, PhD. Health Care Department, Universidad Autónoma Metropolitana, Xochimilco, Mexico, and Bologna Molina Ronell, PhD. Molecular Pathology Area, Faculty of Detistry, University of the Republic, Uruguay
Subjects: Adult, Pathology, medicine.medical_specialty, Real Time Polymerase Chain Reaction, recurrence, government.form_of_government, Caveolin 1, Odontogenic Tumors, Biology, medicine.disease_cause, Ameloblastic Carcinoma, Malignant transformation, Ameloblastoma, Western blot, Caveolin-1, medicine, Humans, Caveolina 1, resection, General Dentistry, curettage, UNESCO:CIENCIAS MÉDICAS, desmoplastic ameloblastoma, Oral Medicine and Pathology, medicine.diagnostic_test, Research, mixed radiopaque ? radiolucent, Carcinoma, Odontogenic tumor, Tooth Germ, medicine.disease, Immunohistochemistry, Ameloblastic carcinoma, Otorhinolaryngology, government, Surgery, Carcinogenesis, enucleation
Abstract: Background The caveolin-1 protein (structural component of membrane caveolae) plays important roles in several biological functions, such as endocytosis, cell adhesion, and cell signaling. However, this protein has been associated with mechanisms of tumorigenesis in several neoplasms. The expression patterns and roles of caveolin-1 in the oral epithelium and in embryonic and odontogenic tumor tissues are still unclear. Material and Methods The expression of caveolin-1 was evaluated in samples of the normal gingival epithelium (n=7), human tooth germ (TG) (n=12), ameloblastoma (AM) (n=83), and ameloblastic carcinoma (AC) (n=9) by immunohistochemistry. Additionally, AM samples were analyzed by qRT-PCR and Western blot. Results Most TG (91.7%), AM (73.5%) and AC (100%) samples showed diverse patterns of immunohistochemical positivity for caveolin-1, while only one gingival sample was positive. The transcript levels of cav-1 were significantly upregulated by 14.9-fold in AM tissue (P = 0.0014) compared to those in normal gingival epithelial tissue, as shown by qRT-PCR. Presence of caveolin-1 protein was confirmed by Western blot analysis. The caveolin-1 immunoexpression patterns throughout the stages of TG show its importance during odontogenesis. Conclusions The overexpression of caveolin-1 in AM and AC compared to its expression in normal gingival epithelium (adult tissue) suggests a possible role of caveolin-1 in protumoral events, but due to the similar immunoexpression observed in AM and AC, caveolin-1 may not necessarily participate in the malignant transformation process. However, future studies are needed to clarify and confirm these hypotheses. Key words:Ameloblastoma, ameloblastic carcinoma, caveolin-1, immunohistochemistry, real-time polymerase chain reaction.
Published: 2020
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111. Las mujeres afrovenezolanas de Todasana y su decisión trascendental a finales del siglo XIX

Author: Yara Altez and Consejo de Desarrollo Científico y Humanístico de la Universidad Central de Venezuela
Subjects: General Earth and Planetary Sciences, Esclavizados, Venezuela, Mujeres, Apellidos, Antropología, Historia, General Environmental Science
Abstract: Se presentan aquí resultados de una investigación documental sobre la historia de una antigua hacienda de cacao fundada a principios del siglo XVII en la costa central venezolana, llamada originalmente Tuasana. Fue una hacienda trabajada por esclavizados que permanecieron asentados allí incluso abolida la esclavitud en 1854, mientras que sus descendientes todavía residen en el lugar, hoy llamado Todasana. A finales del siglo XIX, un grupo de mujeres cambió el apellido que les había impuesto la administración de la hacienda desde inicios del siglo XVIII. Fue una valiente decisión, pero al no transmitirse a la descendencia, dejó en el olvido al pasado de la esclavitud y a sus ancestros. De ellos nadie habla hoy, así como nadie refiere a la importante decisión de aquellas mujeres de Todasana. Abstract: The results of a documentary investigation on the history of an old cocoa farm founded in the early seventeenth century on the Venezuelan central coast, originally called Tuasana, are presented here. It was a farm worked by enslaved who remained seated there even abolished slavery in 1854, while their descendants still reside in the place, today called Todosana. At the end of the 19th century, a group of women changed the last name that had been imposed on them by the administration of the hacienda since the beginning of the 18th century. It was a brave decision, but not being transmitted to the offspring, he left the past of slavery and his ancestors in oblivion. Nobody talks about them today, just as nobody refers to the important decision of those women in Todasana.
Published: 2020
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112. Consequences of a Deterministic Equation for the Hydrogen Atom

Author: Crespin, Daniel and Facultad de Ciencias, Universidad Central de Venezuela
Subjects: [NLIN.NLIN-CD]Nonlinear Sciences [physics]/Chaotic Dynamics [nlin.CD]
Abstract: The quantum wave mechanics proposed in 1926 by Erwin Schrödinger for the hydrogen atom was a mixture of success and failure. Astonishing and extraordinary success resulted from Schrödinger self adjoint Hamiltonian energy linear operator H. This mathematical object allows the calculation of stationary energies and stationary electron configurations. On the other hand the Schrödinger time dependent equation was such a dramatic failure that it led to the establishment of the current Quantism, or Quantum doctrine, or Copenhagen interpretation of quantum mechanics based on the postulates listed below, or variations of these. This paper discusses the implications that the deterministic time dependent equation has for Quantism.
Published: 2022

113. Editorial: recent advances in bovine tuberculosis

Author: Federico Carlos Blanco, Christophe J. Queval, Flabio R. Araujo, Jacobus Henri De Waard, FEDERICO CARLOS BLANCO, CICVyA, Institute of Biotechnology, National Institute of Agricultural Technology (INTA), Buenos Aires, Argentina., CHRISTOPHE J. QUEVAL, HTS, Francis Crick Institute, London, United Kingdom., FLABIO RIBEIRO DE ARAUJO, CNPGC, and JACOBUS HENRI DE WAARD, Instituto de Biomedicina, Universidad Central de Venezuela, Caracas, Venezuela.
Subjects: One Health initiative, General Veterinary, Mycobacterium bovis BCG, Epidemiology, Vaccination, Immunology, Bovine tuberculosis
Abstract: Made available in DSpace on 2022-05-09T15:12:37Z (GMT). No. of bitstreams: 1 2022-editorial-tuberculose.pdf: 103340 bytes, checksum: df51d2434d5a0cacdf1999691f7d7e79 (MD5) Previous issue date: 2022
Published: 2022

114. nth-order fractional Brownian motion and fractional Gaussian noises

Author: Aline Bonami, C. Berzin-Joseph, E. Perrin, Rachid Harba, I. Iribarren, Laboratoire d'électronique, signaux, images (LESI), Université d'Orléans (UO), Laboratoire de Statistiques et Analyse des Données (LABSAD), Université Pierre Mendès France - Grenoble 2 (UPMF), Universidad Central de Venezuela (UCV), Mathématiques - Analyse, Probabilités, Modélisation - Orléans (MAPMO), Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Laboratory of Electronics, Signals and Images ( LESI ), Université d'Orléans ( UO ), Laboratoire d'Electronique, Signaux, Images, Laboratoire de Statistiques et Analyse des Données ( LABSAD ), Université Pierre Mendès France - Grenoble 2 ( UPMF ), Escuela de Matematicas [Caracas], UNIVERSIDAD CENTRAL DE VENEZUELA, Mathématiques - Analyse, Probabilités, Modélisation - Orléans ( MAPMO ), and Université d'Orléans ( UO ) -Centre National de la Recherche Scientifique ( CNRS )
Subjects: Mathematical optimization, Covariance function, Gaussian, fractional Brownian motion, 02 engineering and technology, Upper and lower bounds, symbols.namesake, signal synthesis, Mathematics::Probability, [MATH.MATH-ST]Mathematics [math]/Statistics [math.ST], 0202 electrical engineering, electronic engineering, information engineering, [ MATH.MATH-ST ] Mathematics [math]/Statistics [math.ST], Electrical and Electronic Engineering, Brownian motion, Mathematics, 1/f processes, Fractional Brownian motion, self-similarity, Estimation theory, Mathematical analysis, Estimator, 020206 networking & telecommunications, [STAT.TH]Statistics [stat]/Statistics Theory [stat.TH], [ STAT.TH ] Statistics [stat]/Statistics Theory [stat.TH], Gaussian noise, Signal Processing, symbols, 020201 artificial intelligence & image processing, fractional Gaussian noises, parameter estimation
Abstract: A generalization of fractional Brownian motion (fBm) of parameter H in ]0, 1[ is proposed. More precisely, this work leads to nth-order fBm (n-fBm) of H parameter in ]n-1, n[, where n is any strictly positive integer. They include fBm for the special case n=1. Properties of these new processes are investigated. Their covariance function are given, and it is shown that they are self similar. In addition, their spectral shape is assessed as 1/f/sup /spl alpha// with /spl alpha/ belonging to ]1; +/spl infin/[, providing a larger framework than classical fBm. Special interest is given to their nth-order stationary increments, which extend fractional Gaussian noises. The covariance function and power spectral densities are calculated. The properties and signal processing tasks such as a Cholesky-type synthesis technique and a maximum likelihood estimation method of the H parameter are presented. The results show that the estimator is efficient (unbiased and reaches the Cramer-Rao lower bound) for a large majority of tested values.
Published: 2001
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115. Thermal and epithermal neutron fluence rate gradient measurements by PADC detectors in LINAC radiotherapy treatments-field

Author: Dávila, J. [Física Médica C. A. and Universidad Central de Venezuela, Caracas (Venezuela, Bolivarian Republic of)]
Published: 2015
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116. Th and U fuel photofission study by NTD for AD-MSR subcritical assembly

Author: Davila, Jesus [Física Médica C. A. and Universidad Central de Venezuela, Caracas (Venezuela, Bolivarian Republic of)]
Published: 2015
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117. Deconstruction of Quantum Wave Mechanics

Author: Crespin, Daniel and Facultad de Ciencias, Universidad Central de Venezuela
Subjects: [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph], [PHYS.MPHY]Physics [physics]/Mathematical Physics [math-ph], [NLIN]Nonlinear Sciences [physics]
Abstract: The model of the hydrogen atom originally introduced by Erwin Schrödinger in 1926 isa two-body proton -electron system. It relies on the Schrödinger operator H and on thelinear Schr¨odinger time dependent equation. Then Niels Bohr discovered that the modelcontradicts the basic dynamics of the atom and quantum wave mechanics was invented,with incidences here told from a deconstructive standpoint. The final section of this papersketches a new, alternative, continuous, causal and fully deterministic wave mechanics—already mentioned in [1], [2], [3] and elsewhere— crucially relying on H and solvablein terms of its eigenvalues and eigenfunctions, but definitely non-linear. An importantimplication is that the deterministic hydrogen atom must be conceived as a three-bodysystem consisting of proton, electron and photon.
Published: 2021

118. Sintomas respiratórios (Teste de Avaliação da DPOC e pontuação modificada de dispneia do Conselho de Pesquisa Médica) e classificação GOLD-ABCD COPD: o estudo LASSYC

Author: Maria Montes de Oca, Maria Victorina Lopez Varela, Ana Maria B. Menezes, Fernando C. Wehrmeister, Larissa Ramirez, Marc Miravitlles, Institut Català de la Salut, [Montes de Oca M] Universidad Central de Venezuela, Caracas, Venezuela. [Lopez Varela MV] Universidad de la República, Montevideo, Uruguay. [Menezes AMB, Wehrmeister FC] Programa de Pós-graduação em Epidemiologia, Universidade Federal de Pelotas, Pelotas (RS) Brasil. [Ramirez L] AstraZeneca, Costa Rica. [Miravitlles M] Servei de Pneumologia, Vall d’Hebron Hospital Universitari, Barcelona, Spain. Vall d’Hebron Institut de Recerca (VHIR), Barcelona, Spain. CIBER de Enfermedades Respiratorias, Barcelona, Spain, and Vall d'Hebron Barcelona Hospital Campus
Subjects: Investigative Techniques::Epidemiologic Methods::Data Collection::Surveys and Questionnaires [ANALYTICAL, DIAGNOSTIC AND THERAPEUTIC TECHNIQUES, AND EQUIPMENT], Male, medicine.medical_specialty, Biomedical Research, Otros calificadores::/diagnóstico [Otros calificadores], Qüestionaris, Severity of Illness Index, Diseases of the respiratory system, Pulmonary Disease, Chronic Obstructive, Cohen's kappa, Internal medicine, Surveys and Questionnaires, Doença pulmonar obstrutiva crônica, Other subheadings::/diagnosis [Other subheadings], medicine, Humans, Respiratory system, Pulmons - Malalties obstructives - Diagnòstic, COPD, RC705-779, Respiratory Tract Diseases::Lung Diseases::Lung Diseases, Obstructive::Pulmonary Disease, Chronic Obstructive [DISEASES], business.industry, Chronic obstructive pulmonary disease, técnicas de investigación::métodos epidemiológicos::recopilación de datos::encuestas y cuestionarios [TÉCNICAS Y EQUIPOS ANALÍTICOS, DIAGNÓSTICOS Y TERAPÉUTICOS], medicine.disease, enfermedades respiratorias::enfermedades pulmonares::enfermedades pulmonares obstructivas::enfermedad pulmonar obstructiva crónica [ENFERMEDADES], Cross-Sectional Studies, Dyspnea, Symptoms and COPD, Copd assessment test, Sintomas e DPOC, business
Abstract: Objective To assess the frequency and severity of 24-hour respiratory symptoms according to COPD GOLD-ABCD classification (2017-version), the distribution of the patients with COPD into GOLD categories using mMRC (≥2) or CAT (≥10) scores, and agreement between these cut-off points. Methods In this cross-sectional study (LASSYC study), 24-hour day respiratory symptoms were assessed by the Evaluating Respiratory Symptoms in COPD (E-RS) questionnaire, Nighttime Symptoms of COPD Instrument (NiSCI), Early Morning Symptoms of COPD Instrument (EMSCI), CAT and mMRC scores. Results Among the 734 patients with COPD, 61% were male, age 69.6±8.7 years, FEV1% post-BD 49.1±17.5%, mMRC 1.8±1.0 and CAT 15.3±.8.1. By mMRC 33.7% were group-A, 29.2% group-B, 10.2% group-C and 26.9% group-D. By CAT 22.3% were group-A, 41% group-B, 4.8% group-C and 31.9% group-D. Using the mMRC the severity of E-RS, NiSCI and EMSCI scores increased from group A to D. Using the CAT, the groups B and D had the higher scores. Agreement between mMRC and CAT was 89.5% (Kappa statistics=75.7%). For mMRC score of 2, CAT score of ≥11 showed the maximum Youden’s index (1.34). For mMRC score of 1, CAT score of ≥9 and ≥10 showed the maximum Youden’s index (1.48). Conclusion GOLD COPD classification by CAT seems to better discriminate 24-hour symptoms. Results do not support the equivalent use of CAT≥10 and mMRC≥2 for assessing symptoms. RESUMO Objetivo Avaliar a frequência e gravidade dos sintomas respiratórios de 24 horas de acordo com a classificação COPD GOLD-ABCD (versão 2017), a distribuição dos pacientes com DPOC nas categorias GOLD usando escores mMRC (≥2) ou CAT (≥10) e concordância entre esses pontos de corte. Métodos Neste estudo transversal (estudo LASSYC), os sintomas respiratórios diários de 24 horas foram avaliados pelo questionário Avaliando os Sintomas Respiratórios em DPOC (Evaluating Respiratory Symptoms - E-RS), Instrumento de Sintomas Noturnos de DPOC (Nighttime Symptoms of COPD Instrument -NiSCI), Instrumento de Sintomas Matinais de DPOC (Early Morning Symptoms of COPD Instrument - EMSCI), pontuações CAT e mMRC. Resultados Entre os 734 pacientes com DPOC, 61% eram do sexo masculino, idade 69,6 ± 8,7 anos, VEF1% pós-BD 49,1 ± 17,5%, mMRC 1,8 ± 1,0 e CAT 15,3 ± 0,8,1. Por mMRC 33,7% eram do grupo A, 29,2% do grupo B, 10,2% do grupo C e 26,9% do grupo D. Por CAT, 22,3% eram do grupo A, 41% do grupo B, 4,8% do grupo C e 31,9% do grupo D. Usando o mMRC, a gravidade dos escores E-RS, NiSCI e EMSCI aumentou do grupo A para D. Usando o CAT, os grupos B e D tiveram os escores mais altos. A concordância entre mMRC e CAT foi de 89,5% (estatística Kappa = 75,7%). Para a pontuação mMRC de 2, a pontuação CAT ≥11 mostrou o índice de Youden máximo (1,34). Para a pontuação mMRC de 1, a pontuação CAT ≥9 e ≥10 mostrou o índice de Youden máximo (1,48). Conclusão A classificação GOLD COPD por CAT parece discriminar melhor os sintomas de 24 horas. Os resultados não suportam o uso equivalente de CAT≥10 e mMRC≥2 para avaliação dos sintomas.
Published: 2021

119. STUDY OF THE ADSORPTION OF ASPHALTENES AND THEIR SUBFRACTIONS A1 AND A2 ONTO SiO2 NANOPARTICLES BY METALOPETROLEOMIC TECHNIQUES

Author: Gonzalez Contreras, Genesis, Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Université de Pau et des Pays de l'Adour, Universidad central de Venezuela. Facultad de ciencias, and Brice Bouyssière
Subjects: Sous-fractions A1 et A2, [CHIM.GENI]Chemical Sciences/Chemical engineering, A1 and A2 subfractions, Nanoparticules de SiO2, Nanoparticulas de SiO2, Asphaltenes, Subfracciones A1 y A2, Asfaltenos, SiO2 nanoparticles, GPC-ICP HR MS, Asphaltènes
Abstract: Thanks to numerous investigations in the oil industry, the fractions with the highest added value (saturates, aromatics and resins) and the fraction responsible for the problems during production, transport, and refining have been identified. The latter corresponds to asphaltenes, which show a tendency to adsorb on surfaces and aggregate, leading to flocculation and precipitation. To minimize the adverse effects, different strategies have been developed, some of them involving large investments. For this reason, research continues to be carried out where it is necessary to know the structure or fraction of the asphaltenes responsible for this instability. For its study and due to its complexity, asphaltene separation techniques are proposed, among them the fractionation by complex formation with p-nitrophenol, which generates two subfractions called A1 (insoluble in toluene) and A2 (soluble in toluene).In the first stage, the present doctoral thesis work aims to study the aggregation behavior of the asphaltenes and compare it with that of their A1 and A2 subfractions. For this purpose, asphaltenes were obtained from three samples of Venezuelan curds: Hamaca, Cerro Negro, and Furrial, and then their A1 and A2 subfractions were obtained by complex formation with p-nitrophenol. From GPC-ICP HR MS molecular weight distribution profiles of vanadium, sulfur, and nickel, the chromatograms showed the presence of four regions depending on the hydrodynamic volume of the components: aggregate cluster region or SHMW, high molecular weight or HMW, medium molecular weight or MMW, low molecular weight or LMW. The results in THF solutions showed that subfraction A2 presented higher intensity for the three isotopes studied in the conglomerate region compared to asphaltene and subfraction A1. While in CHCl3, a marked shift towards the SHMW region was evidenced, which is attributed to the fact that in CHCl3 the formation of aggregates persists, compared to THF, which is a better solvent for the more polar fractions.By the above and making use of its ability to adsorb on different surfaces, the adsorption of asphaltenes on SiO2 nanoparticles has been studied because of its interest as a strategy to mitigate the adverse effects in the oil industry. For this reason, in a second stage, the present work proposed to study the adsorption of asphaltenes and their subfractions A1 and A2 on SiO2 nanoparticles as a strategy to evaluate the influence of this adsorbent on the aggregation process.The SiO2 nanoparticles were obtained from rice husks to avoid the synthesis by Stober's method. Once the starting materials were obtained, adsorption experiments were carried out on the nanoparticles at 3 % w/v for 72 h, in toluene (as preliminary tests of the behavior of the asphaltenes), in THF and CHCl3, where comparisons could be made between the behavior of the asphaltenes and their A1 and A2 subfractions. The solutions before adsorption (original), after adsorption (remanent), and an extract made with THF (extract) were analyzed by GPC-ICP HR MS. The analysis of the chromatograms of the remaining solutions after adsorption on SiO2 nanoparticles showed the effect of the solvent on the adsorption process, the better its ability to stabilize the components in solution, the less interaction they may have with the adsorbent surface. Thus, in THF there is no tendency for adsorption on the surface, while in CHCl3 the nanoparticles retain the SHMW and HMMW components which are the main contributors to the adsorption process.; Gracias a numerosas investigaciones en torno a la industria del petróleo, han sido identificadas las fracciones que tienen mayor valor agregado (saturados, aromáticos y resinas), y la fracción responsable de los problemas durante la producción, transporte y refinación. Esta última corresponde a los asfaltenos, los cuales muestran tendencia a adsorberse sobre superficies y a agregarse, lo que conduce a la floculación y a la precipitación. Para minimizar los efectos adversos, diferentes estrategias han sido desarrolladas donde algunas de ellas implican cuantiosas inversiones. Razón por la cual continúan investigaciones donde es necesario conocer la estructura o la fracción de los asfaltenos responsable de esta inestabilidad. Para su estudio y debido a su complejidad se proponen técnicas de separación de asfaltenos, entre ellas el fraccionamiento mediante formación de complejo con p-nitrofenol, la cual genera dos subfracciones denominadas A1 (insoluble en tolueno) y A2 (soluble en tolueno).En una primera etapa, el presente trabajo de tesis doctoral tiene como finalidad estudiar el comportamiento de agregación de los asfaltenos y compararlo con el de sus subfracciones A1 y A2. Para esto, se obtuvieron los asfaltenos de tres muestras de curdos venezolanos: Hamaca, Cerro Negro y Furrial y, seguidamente, se obtuvieron sus subfracciones A1 y A2 mediante formación de complejo con p-nitrofenol. A partir de perfiles de distribución de pesos moleculares GPC-ICP HR MS de vanadio, azufre y níquel, los cromatogramas mostraron la presencia de cuatro regiones en función del volumen hidrodinámico de los componentes: región de conglomerados de agregados o SHMW, de alto peso molecular o HMW, de mediano peso molecular o MMW, de bajo peso molecular o LMW. Los resultados en soluciones de THF mostraron que la subfracción A2 presentaba mayor intensidad para los tres isotopos estudiados en la zona de conglomerados comparado con el asfalteno y la subfracción A1. Mientras que en CHCl3, se evidenció un marcado desplazamiento hacia la región de SHMW, lo que se atribuye a que en CHCl3 persiste la formación de agregados, comparado con el THF, el cual es un mejor solvente para las fracciones más polares.En virtud a lo anteriormente expuesto y haciendo uso de su capacidad para adsorberse sobre diferentes superficies, se ha estudiado la adsorción de asfaltenos sobre nanopartículas se SiO2 por su interés como una estrategia para mitigar los efectos adversos en la industria del petróleo. Razón por la cual, en una segunda etapa el presente trabajo se propuso estudiar la adsorción de asfaltenos y sus subfracciones A1 y A2 sobre nanopartículas de SiO2 como una estrategia para evaluar la influencia de este adsorbente sobre el proceso de agregación.Las nanopartículas de SiO2 fueron obtenidas a partir de cáscaras de arroz, de manera de evitar la síntesis mediante el método de Stober. Una vez obtenidos los materiales de partida se llevaron a cabo experimentos de adsorción sobre las nanopartículas al 3 % p/v durante 72 h, en tolueno (como ensayos preliminares del comportamiento de los asfaltenos), en THF y CHCl3, donde se puedo hacer comparaciones entre el comportamiento de los asfaltenos y sus subfracciones A1 y A2. Las soluciones antes de la adsorción (original), después de la adsorción (remanente) y un extracto realizado con THF (extracto), fueron analizadas mediante GPC-ICP HR MS. El análisis de los cromatogramas de las soluciones remanentes luego de la adsorción sobre nanopartículas de SiO2, mostró el efecto del solvente sobre el proceso de adsorción, mientras mejor sea su capacidad para estabilizar los componentes en solución, menor será la interacción que puedan tener con la superficie adsorbente. Así, en THF no hay tendencia la adsorción sobre la superficie, mientras que en CHCl3 las nanopartículas retienen los componentes de SHMW y HMMW quienes son los principales contribuyentes al proceso de adsorción.; Grâce à de nombreuses recherches dans l'industrie pétrolière, les fractions à plus forte valeur ajoutée (saturés, aromatiques et résines) et la fraction responsable des problèmes lors de la production, du transport et du raffinage ont été identifiées. Ce dernier correspond aux asphaltènes, qui ont tendance à s'adsorber sur les surfaces et à s'agréger, ce qui entraîne une floculation et une précipitation. Pour minimiser les effets négatifs, différentes stratégies ont été élaborées, dont certaines impliquent des investissements importants. C'est la raison pour laquelle se poursuivent les recherches où il est nécessaire de connaître la structure ou la fraction des asphaltènes responsables de cette instabilité. Pour son étude et en raison de sa complexité, des techniques de séparation des asphaltènes sont proposées, notamment le fractionnement par formation de complexes avec le p-nitrophénol, qui génère deux sous-fractions appelées A1 (insoluble dans le toluène) et A2 (soluble dans le toluène).Dans un premier temps, l'objectif de cette thèse de doctorat est d'étudier le comportement d'agrégation des asphaltènes et de le comparer à celui de leurs sous-fractions A1 et A2. À cette fin, des asphaltènes ont été obtenus à partir de trois échantillons de caillés vénézuéliens : Hamaca, Cerro Negro et Furrial, puis leurs sous-fractions A1 et A2 ont été obtenues par formation de complexes avec du p-nitrophénol. D'après les profils de distribution de la masse moléculaire du vanadium, du soufre et du nickel par GPC-ICP HR MS, les chromatogrammes ont montré la présence de quatre régions en fonction du volume hydrodynamique des composants : région des agrégats ou SHMW, masse moléculaire élevée ou HMW, masse moléculaire moyenne ou MMW, faible masse moléculaire ou LMW. Les résultats dans les solutions THF ont montré que la sous-fraction A2 présentait une intensité plus élevée pour les trois isotopes étudiés dans la région de l'amas d'agrégats par rapport à l'asphaltène et à la sous-fraction A1. Alors que dans CHCl3, un déplacement marqué vers la région SHMW était évident, ce qui est attribué au fait que la formation d'agrégats persiste dans CHCl3, par rapport au THF, qui est un meilleur solvant pour les fractions plus polaires.En vertu de ce qui précède et en utilisant leur capacité d'adsorption sur différentes surfaces, l'adsorption des asphaltènes sur les nanoparticules de SiO2 a été étudiée en raison de son intérêt en tant que stratégie pour atténuer les effets néfastes dans l'industrie pétrolière. Pour cette raison, dans un deuxième temps, le présent travail a proposé d'étudier l'adsorption des asphaltènes et de leurs sous-fractions A1 et A2 sur des nanoparticules de SiO2 comme stratégie pour évaluer l'influence de cet adsorbant sur le processus d'agrégation. Les nanoparticules de SiO2 ont été obtenues à partir de cosses de riz afin d'éviter la synthèse par la méthode de Stober. Une fois les matériaux de départ obtenus, des expériences d'adsorption ont été réalisées sur les nanoparticules à 3 % p/v pendant 72 h, dans le toluène (comme tests préliminaires du comportement des asphaltènes), dans le THF et le CHCl3, où des comparaisons ont pu être faites entre le comportement des asphaltènes et de leurs sous-fractions A1 et A2. Les solutions avant adsorption (originale), après adsorption (rémanente) et un extrait fait avec du THF (extrait) ont été analysés par GPC-ICP HR MS. L'analyse des chromatogrammes des solutions restantes après adsorption sur les nanoparticules de SiO2 a montré l'effet du solvant sur le processus d'adsorption, plus sa capacité à stabiliser les composants en solution est grande, moins ils peuvent avoir d'interaction avec la surface de l'adsorbant. Ainsi, dans le THF, il n'y a pas de tendance à l'adsorption sur la surface, alors que dans le CHCl3, les nanoparticules conservent les composants SHMW et HMMW qui sont les principaux contributeurs au processus d'adsorption.
Published: 2021

120. Study of the asymptotic behaviour of non-linear functionals for the empirical bridge via strong approximations

Author: Joaquín Ortega, José R. León, Corinne Berzin-Joseph, Laboratoire de Statistique Appliquée, Université Paris XI - Orsay, Universidad Central de Venezuela, UNIVERSIDAD CENTRAL DE VENEZUELA, Instituto Venezolano de Investigaciones Cientificas ( IVIC ), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Universidad Central de Venezuela (UCV), Departamento de Matematica (IVIC), and Instituto Venezolano de Investigaciones Cientificas (IVIC)
Subjects: 010102 general mathematics, General Medicine, Density estimation, 01 natural sciences, Bridge (interpersonal), [MATH.MATH-PR]Mathematics [math]/Probability [math.PR], 010104 statistics & probability, Nonlinear system, Convergence (routing), Calculus, Applied mathematics, 0101 mathematics, [ MATH.MATH-PR ] Mathematics [math]/Probability [math.PR], Mathematics
Abstract: Note présentée par Jean-Pierre Kahane; International audience; We study the asymptotic behaviour of several non-linear functionals of the empirical bridge and obtain some applications to G-deviation in density estimation and to Kullback deviation convergence.
Published: 1998
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121. Vertical and horizontal increments for the Brownian sheet, level curve's lenght and local time

Author: Berzin-Joseph, Corinne, León, José R., Laboratoire de Statistique Appliquée, Université Paris XI - Orsay, Universidad Central de Venezuela, UNIVERSIDAD CENTRAL DE VENEZUELA, Sociedad matemática mexicana, Berzin, Corinne, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), and Universidad Central de Venezuela (UCV)
Subjects: [MATH.MATH-PR]Mathematics [math]/Probability [math.PR], [MATH.MATH-PR] Mathematics [math]/Probability [math.PR], Mathematics::Probability, [ MATH.MATH-PR ] Mathematics [math]/Probability [math.PR]
Abstract: International audience; In this work we study the almost sure convergence for the vertical and horizontal increments of the Brownian sheet. Afterwards, a modification of these results for a regularization of this process, provides almost sure convergence in law for the length of the level curve, defined for the regularized process, towards a modification to the Brownian sheet's local time.
Published: 1998

122. Level crossings and local time for regularized Gaussian processes

Author: Berzin , Corinne, León , José R., Ortega , Joaquín, Laboratoire de probabilités et statistiques d'Orsay, Université Paris-Sud - Paris 11 (UP11), Universidad Central de Venezuela (UCV), Departamento de Matematica (IVIC), Instituto Venezolano de Investigaciones Cientificas (IVIC), Laboratoire de Statistique Appliquée, Université Paris XI - Orsay, Universidad Central de Venezuela, UNIVERSIDAD CENTRAL DE VENEZUELA, and Instituto Venezolano de Investigaciones Cientificas ( IVIC )
Subjects: [MATH.MATH-PR]Mathematics [math]/Probability [math.PR], [ MATH.MATH-PR ] Mathematics [math]/Probability [math.PR]
Abstract: International audience; Let $\{X_{t}, t in [0, 1]\}$ be a centred stationary Gaussian process defined on (Ω, A , P) with covariance function satisfying $r(t) \sim 1 -C \vert t \vert ^{2 \alpha}$, $0 < \alpha
Published: 1998

123. Hermite polynomial expansion for non-smooth functionals of stationary Gaussian processes: crossings and extremes

Author: JoséR. León, Marie Kratz, Mathématiques Appliquées à Paris 5 ( MAP5 - UMR 8145 ), Université Paris Descartes - Paris 5 ( UPD5 ) -Institut National des Sciences Mathématiques et de leurs Interactions-Centre National de la Recherche Scientifique ( CNRS ), Escuela de Matematicas [Caracas], UNIVERSIDAD CENTRAL DE VENEZUELA, Mathématiques Appliquées Paris 5 (MAP5 - UMR 8145), Université Paris Descartes - Paris 5 (UPD5)-Institut National des Sciences Mathématiques et de leurs Interactions (INSMI)-Centre National de la Recherche Scientifique (CNRS), and Universidad Central de Venezuela (UCV)
Subjects: Statistics and Probability, Hermite spline, Gaussian processes, extremes, 01 natural sciences, Hermite polynomial expansion, Matrix polynomial, Cubic Hermite spline, 010104 statistics & probability, symbols.namesake, Hermite interpolation, [MATH.MATH-ST]Mathematics [math]/Statistics [math.ST], Modelling and Simulation, [ MATH.MATH-ST ] Mathematics [math]/Statistics [math.ST], 0101 mathematics, Gaussian process, Mathematics, Hermite polynomials, Polynomial chaos, Applied Mathematics, 010102 general mathematics, Mathematical analysis, [STAT.TH]Statistics [stat]/Statistics Theory [stat.TH], [ STAT.TH ] Statistics [stat]/Statistics Theory [stat.TH], crossings, [MATH.MATH-PR]Mathematics [math]/Probability [math.PR], Modeling and Simulation, symbols, Maxima, [ MATH.MATH-PR ] Mathematics [math]/Probability [math.PR]
Abstract: We propose a new method to get the Hermite polynomial expansion of crossings of any level by a stationary Gaussian process, as well as the one of the number of maxima in an interval, under some assumptions on the spectral moments of the process.
Published: 1997
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124. Chagas disease vectors of Paraguay: Entomoepidemiological aspects of triatoma sordida (Stål, 1859) and development of an identification key for Paraguayan triatomines based on cytogenetics data

Author: Cleber Galvão, Kaio Cesar Chaboli Alevi, Clara Elena Martínez Purroy, Nilsa González-Britez, Ariane Cristina Caris Garcia, Hernán J. Carrasco, Universidad Nacional de Asunción, Universidade Estadual Paulista (UNESP), Universidad Central de Venezuela, and Instituto Oswaldo Cruz (FIOCRUZ)
Subjects: Chagas disease, Zoology, Identification key, medicine.disease_cause, Triatoma sordida, Virology, Infestation, Triatoma infestans, medicine, Animals, Humans, Chagas Disease, Triatoma, High rate, biology, Articles, Classification, biology.organism_classification, medicine.disease, Insect Vectors, Infectious Diseases, Taxon, Geography, Paraguay, Epidemiological Monitoring, Parasitology, Taxonomic key
Abstract: Made available in DSpace on 2022-04-28T19:41:28Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-07-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Approximately 150,000 people are living with Chagas disease in Paraguay. Although the country has been since 2008 considered as one of the countries that succeeded in interrupted the vector transmission of Chagas by Triatoma infestans in houses of the eastern region, there are nine other species notified in the country that are potential vectors and also deserve attention from vector control programs. Thus, we carried out an entomoepidemiological study of T. sordida in the eastern and western regions of the country and we developed an identification key for Paraguay's triatomines based on cytogenetic data. Between the years 2003 to 2004, 271 specimens of T. sordida were captured in domestic, peridomestic, and wild ecotopes, with 131 insects caught in the eastern (Alto Paraguay, Boquerón and Pte. Hayes) and 140 in the western region of Paraguay (Guairá and Paraguarí). High rates of peridomicillary infestation were observed for both regions. Besides that, the natural infection of the captured insects was detected by optical microscopy in 12% and 10%, and by PCR in 21% and 20% in the eastern and western regions, respectively. Based on cytogenetic data from nine of ten species notified in Paraguay, an identification key was developed to differentiate all taxa. Thus, given the vectorial importance of T. sordida, we highlight the need for continued attention from Paraguay's vector control programs for this species. Further, we provide a taxonomic key that assists in the correct classification of Paraguayan triatomines. Departamento de Medicina Tropical Instituto de Investigaciones en Ciencias de la Salud (IICS) Universidad Nacional de Asunción Campus Universitario Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP) Instituto de Biociências de Botucatu, Rua Dr. Antônio Celso Wagner Zanin, Distrito de Rubião Junior, SP Laboratório de Parasitologia Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP) Faculdade de Ciências Farmacêuticas, Rodovia Araraquara-Jaú km 1, SP Laboratorio de Biología Molecular de Protozoarios Facultad de Medicina Instituto de Medicina Tropical Universidad Central de Venezuela, Los Chaguaramos Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos Instituto Oswaldo Cruz (FIOCRUZ), Pavilhão Rocha Lima, RJ Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP) Instituto de Biociências de Botucatu, Rua Dr. Antônio Celso Wagner Zanin, Distrito de Rubião Junior, SP Laboratório de Parasitologia Universidade Estadual Paulista “Júlio de Mesquita Filho” (UNESP) Faculdade de Ciências Farmacêuticas, Rodovia Araraquara-Jaú km 1, SP FAPESP: 2017/05015-7
Published: 2021

125. A simple and effective 1D-element discrete-based method for computational bone remodeling

Author: Miguel Cerrolaza, Diego Quexada-Rodríguez, Marie Christine Ho-Ba-Tho, M.A Velasco, Diego Alexander Garzón-Alvarado, Carlos Duque-Daza, Kalenia Márquez-Flórez, Olfa Trabelsi, Salah Ramtani, Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental, Universitat Politècnica de Catalunya. GMNE - Grup de Mètodes Numèrics en Enginyeria, Institut des Sciences du Mouvement Etienne Jules Marey (ISM), Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), Facultad de Ingenieria, Universidad Central de Venezuela (UCV), Biomécanique et Bioingénierie (BMBI), Université de Technologie de Compiègne (UTC)-Centre National de la Recherche Scientifique (CNRS), Santé Ingénierie Biologie Saint-Etienne (SAINBIOSE), Centre Ingénierie et Santé (CIS-ENSMSE), École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-École des Mines de Saint-Étienne (Mines Saint-Étienne MSE), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM), Chimie, Structures et Propriétés de Biomatériaux et d'Agents Thérapeutiques (CSPBAT), and Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Sorbonne Paris Nord
Subjects: Trabecular bone, Computer science, 0206 medical engineering, Finite Element Analysis, Biomedical Engineering, Bioengineering, Bone architecture, 02 engineering and technology, Bone and Bones, Bone remodeling, Topological optimization, 03 medical and health sciences, 0302 clinical medicine, Simple (abstract algebra), Bones--Mechanical properties--Mathematical models, Computer Simulation, Bone mechanics, Femur, Enginyeria biomèdica [Àrees temàtiques de la UPC], Finite element analysis, [SDV.NEU.SC]Life Sciences [q-bio]/Neurons and Cognition [q-bio.NC]/Cognitive Sciences, 030229 sport sciences, General Medicine, 020601 biomedical engineering, Finite element method, Computer Science Applications, Human-Computer Interaction, Ossos -- Propietats mecàniques -- Models matemàtics, [SDV.IB]Life Sciences [q-bio]/Bioengineering, Bone Remodeling, Element (category theory), Algorithms, Biomedical engineering
Abstract: This is an Accepted Manuscript of an article published by Taylor & Francis Group in Computer Methods in Biomechanics and Biomedical Engineering on 2022, available online at: http://www.tandfonline.com/10.1080/10255842.2021.1943370. In-silico models applied to bone remodeling are widely used to investigate bone mechanics, bone diseases, bone-implant interactions, and also the effect of treatments of bone pathologies. This paper proposes a new methodology to solve the bone remodeling problem using one-dimensional (1D) elements to discretize trabecular structures more efficiently for 2D and 3D domains. An Euler integration scheme is coupled with the momentum equations to obtain the evolution of material density at each step. For the simulations, the equations were solved by using the finite element method, and two benchmark tests were solved varying mesh parameters. Proximal femur and calcaneus bone were selected as study cases given the vast research available on the topology of these bones, and compared with the anatomical features of trabecular bone reported in the literature. The presented methodology has proven to be efficient in optimizing topologies of lattice structures; It can predict the trend of formation patterns of the main trabecular groups from two different cancellous bones (femur and calcaneus) using domains set up by discrete elements as a starting point. Preliminary results confirm that the proposed approach is suitable and useful in bone remodeling problems leading to a considerable computational cost reduction. Characteristics similar to those encountered in topological optimization (TO) algorithms were identified in the benchmark tests as well, showing the viability of the proposed approach in other applications such as bio-inspired design.
Published: 2021
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126. Weak convergence of the integrated number of level crossings to the local time for Wiener processes

Author: Corinne Berzin-Joseph, José R. León, Équipe de Probabilités et Statistiques ( ÉQUIPE DE PROBABILITéS ET STATISTIQUES ), Université Paris-Sud - Paris 11 ( UP11 ) -Centre National de la Recherche Scientifique ( CNRS ), Universidad Central de Venezuela, UNIVERSIDAD CENTRAL DE VENEZUELA, Laboratoire de Statistique Appliquée, Université Paris XI - Orsay, Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Laboratoire de probabilités et statistiques d'Orsay, Université Paris-Sud - Paris 11 (UP11), and Universidad Central de Venezuela (UCV)
Subjects: Statistics and Probability, Wiener processes, Weak convergence, Kernel (set theory), 010102 general mathematics, Zero (complex analysis), Dirac delta function, increments, 01 natural sciences, Omega, crossings, Combinatorics, [MATH.MATH-PR]Mathematics [math]/Probability [math.PR], 010104 statistics & probability, symbols.namesake, Wiener process, local time, Local time, symbols, 0101 mathematics, Statistics, Probability and Uncertainty, Primary 60F05, 60J55, 60J65, secondary 60G15, 60G57, [ MATH.MATH-PR ] Mathematics [math]/Probability [math.PR], Mathematics
Abstract: International audience; Let $\{X_{t}, t \in[0,1]\}$ be a standard Wiener process defined on $(\Omega,A,\bf{P})$. We define the regularized process $X^{\varepsilon}_{t}= \varphi_{\varepsilon}*X_{t}$, with $\varphi_{\varepsilon}(t)=\ve^{-1}\varphi(t/\ve)$, a kernel that approaches Dirac's delta function as $\ve \rightarrow 0$. We study the convergence of $$ Z_{\varepsilon}(f) = \varepsilon^{-1/2} \int_{-\infty}^{+\infty} \bigg [ \frac{N^{X^{\varepsilon}}(x)}{c(\ve)} - L_{X}(x)\bigg]\, f(x)\, dx, $$ when $\varepsilon$ goes to zero, with $N^{X^{\varepsilon}}(x)$ the number of crossings for $X^{\varepsilon}$ at level $x$ in $[0,1]$ and $L_{X}(x)$ the local time of $X$ in $x$ on $[0,1]$. As a by-product of our method we also obtain a weak convergence result for the increments of the process $X$.; Weak convergence of the integrated number of level crossings to the local time for Wiener processes, Teor. Veroyatnost. i Primenen. Пусть {Xt,t £ [0,1]} есть стандартный винеровский процесс, определенный на (Q,A,P). Рассмотрим упорядочивающий процесс XI = tp e *Xt, где tp £ (t) = (l/£)ip(t/e) есть ядро, сходящееся к дельта-функции Дирака при е-* 0. В статье изучается сходимость ад) = е-с" 1 /* / +оо-сю N x ' (х) Ф)-L x (x) f(x) dx, когда е стремится к нулю, здесь N x (х) есть число пересечений про цессом X е уровня х в промежутке [0,1], a Lx{x) есть локальное время пребывания X в а; на отрезке [0,1]. Как следствие предложенного ме тода, получен результат о слабой сходимости для приращений про цесса X. Ключевые слова и фразы: винеровский процесс, локальное вре мя, пересечения уровня, приращения. 1. Introduction. Let X t = {X(t,cj), t £ [0,1], w e ft} be a standard Wiener process. For each t and e > 0 define A e (i) = e~ 1 ^ 2 (X t+£-X t), the normalized increments of the process. If we fix a trajectory and consider A e (tf) as a random variable (r.v.) on t with Lebesgue's measure A then, as M. Wschebor showed [10], for almost every trajectory, this variable converges in distribution, as e goes to zero, to a Gaussian distribution
Published: 1994
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127. Recubrimientos nanoestructurados de circonia estabilizada con itria (YSZ) depositados mediante termorrociado por plasma por suspensión

Author: Victor Contreras, Didier Chicot, Adrien Van Gorp, Mariana Staia, Stephania Kossman, Alain Iost, Universidad Central de Venezuela (UCV), Mechanics surfaces and materials processing (MSMP), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), Laboratoire de Mécanique de Lille - FRE 3723 (LML), Université de Lille, Sciences et Technologies-Centrale Lille-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Génie Civil et Géo-Environnement (LGCgE) - ULR 4515 (LGCgE), Université d'Artois (UA)-Université de Lille-Ecole nationale supérieure Mines-Télécom Lille Douai (IMT Lille Douai), Institut Mines-Télécom [Paris] (IMT)-Institut Mines-Télécom [Paris] (IMT)-JUNIA (JUNIA), Laboratoire de Métallurgie Physique et Génie des Matériaux (LMPGM), Université de Lille, Sciences et Technologies-Ecole Nationale Supérieure de Chimie de Lille (ENSCL)-EDF (EDF)-Centre National de la Recherche Scientifique (CNRS), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), and Université catholique de Lille (UCL)-Université catholique de Lille (UCL)
Subjects: 020502 materials, 02 engineering and technology, [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph], 021001 nanoscience & nanotechnology, Industrial and Manufacturing Engineering, lcsh:TP785-869, [SPI]Engineering Sciences [physics], 0205 materials engineering, lcsh:Clay industries. Ceramics. Glass, Mechanics of Materials, [SPI.MECA.MEMA]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Mechanics of materials [physics.class-ph], Ceramics and Composites, 0210 nano-technology, ComputingMilieux_MISCELLANEOUS
Abstract: Resumen: Las propiedades de los recubrimientos a base de circonia estabilizada con ytria (YSZ) confieren a estos un excelente desempeño en una amplia gama de aplicaciones que van desde el uso odontológico hasta barreras térmicas, incluyendo también su empleo como electrolitos sólidos en celdas de combustible. En el presente trabajo, se depositaron recubrimientos nanoestructurados delgados de hasta 75 μm de 8YSZ sobre un sustrato de la superaleación Haynes 230, mediante el proceso de termorrociado por plasma por suspensión (SPS), con el fin de servir de enlace (subcapa) entre este sustrato liso, sin preparación previa, y un recubrimiento más grueso microestucturado de YSZ. Se estudió el efecto del espesor de la subcapa y la influencia de los tratamientos térmicos posteriores (TT) a 300 y 600 ̊C sobre su desempeño tribológico a temperatura ambiente (Tamb) y a 650 ̊C. Durante los ensayos de desgaste deslizante con una carga de 2 N contra alúmina, se determinó que la reducción del espesor del recubrimiento de 75 a 25 μm incrementa la resistencia al desgaste aproximadamente 5 veces. Asimismo, para el espesor de 25 μm el TT a la temperatura de 600 ̊C disminuye 6 veces su resistencia al desgaste con respecto a la condición original del recubrimiento. Similarmente, cuando el ensayo se realiza a 650 ̊C, el comportamiento tribológico desmejora significativamente. Los resultados han sido relacionados con los cambios morfológicos que tienen lugar durante el tratamiento térmico. Abstract: The outstanding properties of ytria stabilized zirconia (YSZ) coatings allow an excellent performance of these materials for many applications, ranging from dentistry to thermal barriers, including its use as solid electrolytes in fuel cells. In the present work, nanostructured coatings of 8YSZ with a maximum thickness of 75 μm were deposited on a Haynes 230 superalloy substrate by means of a suspension plasma spraying (SPS) process. The deposited coatings act as a sub-layer between the smooth and unprepared substrate and a thicker microstructured YSZ coating. The effect of the deposited sub-layer thickness and the influence of subsequent heat treatments (TT) at 300 ̊C and 600 ̊C, on its tribological performance at room temperature and 650 ̊C, were studied. During sliding wear tests with a load of 2 N versus alumina, it was determined that reducing the coating thickness from 75 μm to 25 μm increases the wear resistance by approximately 5 times. Also, it was found that the heat treatment at 600 ̊C applied to the coating of 25 μm thickness decreases its wear resistance 6 times with respect to the as-sprayed condition. Similarly, when the tests were performed at 650 ̊C, the tribological behavior was significantly deteriorated. These results have been related to the morphological changes that take place during the heat treatment process. Palabras clave: Termorrociado, Plasma por suspensión, Desgaste deslizante, Tratamientos térmicos, Circonia estabilizada por itria, Keywords: Thermal spray, Suspension plasma spraying, Sliding wear, Heat treatments, Ytria stabilized zirconia
Published: 2019
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128. Régularisées de processus gaussiens, franchissements et temps local

Author: Berzin , Corinne, León , José R., Ortega , Joaquín, Laboratoire de probabilités et statistiques d'Orsay, Université Paris-Sud - Paris 11 (UP11), Universidad Central de Venezuela (UCV), Departamento de Matematica (IVIC), Instituto Venezolano de Investigaciones Cientificas (IVIC), Équipe de Probabilités et Statistiques ( ÉQUIPE DE PROBABILITéS ET STATISTIQUES ), Université Paris-Sud - Paris 11 ( UP11 ) -Centre National de la Recherche Scientifique ( CNRS ), Universidad Central de Venezuela, UNIVERSIDAD CENTRAL DE VENEZUELA, Instituto Venezolano de Investigaciones Cientificas ( IVIC ), and Berzin, Corinne
Subjects: [MATH.MATH-PR]Mathematics [math]/Probability [math.PR], [MATH.MATH-PR] Mathematics [math]/Probability [math.PR], [ MATH.MATH-PR ] Mathematics [math]/Probability [math.PR]
Abstract: International audience; Soit $\{X_{t}, t\in[0,1]\}$ un processus gaussien stationnaire centr{é}, d{é}fini sur $(\Omega,A,P)$ un espace probabilis{é}, dont la covariance $r$ v{é}rifie au voisinage de z{é}ro: $r(t) \sim{1 - C|t|^{2\alpha}}$, $0
Published: 1993

129. De la nanoagrégation à la déposition : rôle des différentes familles chimiques des asphaltènes étudié par résonateur à cristal de quartz

Author: Acevedo, Nelson, Laboratoire des Fluides Complexes et leurs Réservoirs (LFCR), TOTAL FINA ELF-Université de Pau et des Pays de l'Adour (UPPA)-Centre National de la Recherche Scientifique (CNRS), Université de Pau et des Pays de l'Adour, Universidad central de Venezuela. Facultad de ciencias, and Hervé Carrier
Subjects: Agregación de asfaltenos, [CHIM.GENI]Chemical Sciences/Chemical engineering, QCR, Asphaltenes aggregation, Asphaltènes agrégation, Asphaltenes, Nanoparticules, Nanoparticles, Asfaltenos, Nanoparticulas, Asphaltènes
Abstract: A full understanding of the thermodynamic behavior of asphaltenic fluids requires a precise knowledge of the physical and chemical properties of asphaltenes as well as their mechanism of destabilization and aggregation. Experimental characterization of the phase behavior of these complex systems is very difficult but can be achieved by indirect measurements, such as the exploitation of frequency responses of immersed quartz crystal resonator sensors (QCR).In this doctoral work, an experimental set having as main element a QCR was used to characterize the destabilization of asphaltene solutions and their sub-fractions in different solvents. The experimental results obtained highlight (i) the differentiation of the processes involved in the destabilization of these systems: flocculation-aggregation-precipitation, as well as (ii) the specific differences in the formation of solid deposits. The stages of destabilization and the characteristics of deposit formation were interpreted and correlated to the structural properties of the samples and aggregates, through the association of complementary techniques: Ultra-high resolution mass spectrometry by Fourier transform ion cyclotron resonance (FT-ICR MS), atomic force microscopy (AFM) and gel permeation chromatography with inductively coupled plasma mass spectrometry (GPC-ICP MS). The results obtained show that the families of compounds with the most flexible molecular structures, thus "Archipelago" type, show the greatest tendency to form deposits and interact with surfaces. These conclusions are reinforced by the work carried out to characterize the interactions between solutions of asphaltenes or sub-fractions and SiO2 nanoparticles from rice husks.; Para comprender plenamente el comportamiento termodinámico de los fluidos asfalténicos es necesario conocer con precisión las propiedades físicas y químicas de los asfaltenos, así como sus mecanismos de desestabilización y agregación. La caracterización experimental del comportamiento de fase de estos sistemas complejos es muy difícil, sin embargo, puede lograrse mediante mediciones indirectas, como el monitoreo de los cambios en la oscilación de los sensores de cristal de cuarzo (QCR).En este trabajo doctoral se hace uso de un sensor QCR como elemento principal para el estudio de la desestabilización de soluciones de asfaltenos y sus subfracciones en distintos solventes. Los resultados experimentales obtenidos ponen en manifiesto (i) la distinción precisa de los diferentes procesos implicados en la desestabilización de estos sistemas: floculación-agregación-precipitación, así como (ii) las diferencias específicas en la formación de depósitos sólidos.Las etapas de la desestabilización y las características de formación de depósitos pudieron ser interpretadas y correlacionadas con las características estructurales de las muestras y los agregados, a través del análisis mediante otras técnicas: espectrometría de masas de ultra alta resolución por resonancia ciclotrónica de iones con transformada de Fourier (FT-ICR MS), microscopía de fuerza atómica (AFM) y, cromatografía de permeación en gel con espectrometría de masas con plasma inductivamente acoplado (GPC-ICP MS).Los resultados obtenidos demuestran que existe una relación entre las familias de compuestos con estructuras moleculares más flexibles o tipo “archipiélago” con una mayor tendencia a formar depósitos e interaccionar con superficies. Este hecho reforzado además con los resultados obtenidos del estudio de la interacción entre soluciones de asfaltenos y sus subfracciones con nanopartículas de SiO2 biogénicas.; La pleine compréhension du comportement thermodynamique des fluides asphaltèniques nécessite une connaissance précise des propriétés physiques et chimiques des asphaltènes ainsi que des mécanismes de déstabilisation et d’agrégation de ceux-ci. La caractérisation expérimentale du comportement de phase de ces systèmes complexes se révèle très difficile mais peut être réalisée par des mesures indirectes, comme l’exploitation des réponses fréquentielles de capteurs piézoélectriques immergés.Dans ce travail de doctorat, un ensemble expérimental ayant pour élément principal un résonateur à cristal de quartz a été utilisé pour caractériser la déstabilisation de solutions d'asphaltènes et de leurs sous-fractions dans différents solvants. Les résultats expérimentaux obtenus mettent en évidence (i) les différents processus intervenant lors de la déstabilisation de ces systèmes : floculation-agrégation-précipitation, ainsi que (ii) les différences spécifiques dans la formation des dépôts solides. Les étapes de la déstabilisation et las caractéristiques de formation de dépôts ont pu être interprétées et corrélées aux propriétés structurelles des échantillons et des agrégats, par l’association de techniques complémentaires : Spectrométrie de masse à ultra-haute résolution par résonance cyclotronique d’ions à transformée de Fourier (FT-ICR MS), microscopie de force atomique (AFM) et chromatographie par perméation de gel avec spectrométrie de masse à plasma inductif (GPC-ICP MS). Les résultats obtenus démontrent que les familles de composés de structures moléculaires les plus flexibles, c’est-à-dire de type "Archipelago", présentent la plus grande tendance à former des dépôts et à interagir avec les surfaces. Ces conclusions sont renforcées par les travaux menés pour caractériser les interactions entre des solutions d'asphaltènes ou de sous-fractions et des nanoparticules de SiO2 issues de coques de riz.
Published: 2021

130. Intraspecific and Interspecific Phenotypic Differences Confirm the Absence of Cryptic Speciation in Triatoma sordida (Hemiptera, Triatominae)

Author: Daniel Cesaretto Cristal, Jader de Oliveira, Isadora de Freitas Bittinelli, Luiza Maria Grzyb Delgado, João Aristeu da Rosa, Cleber Galvão, Nilsa Gonzalez Britez, Ariane Cristina Caris Garcia, Hernán J. Carrasco, Kaio Cesar Chaboli Alevi, Universidade Estadual Paulista (UNESP), Universidade de São Paulo (USP), Pavilhão Rocha Lima, Universidad Nacional de Asunción, and Universidad Central de Venezuela
Subjects: Male, Species complex, Bolivia, Genetic Speciation, Biology, Intraspecific competition, Triatoma sordida, Virology, Genetic algorithm, Abdomen, Animals, Chagas Disease, Triatoma, Triatominae, Interspecific competition, Genitalia, Female, Articles, Thorax, biology.organism_classification, Hemiptera, Phenotype, Insect Vectors, Infectious Diseases, Evolutionary biology, Paraguay, Microscopy, Electron, Scanning, Parasitology, Female, Brazil
Abstract: Made available in DSpace on 2022-04-28T19:46:26Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-09-07 Triatoma sordida is an endemic Chagas disease vector in South America, distributed in Brazil, Bolivia, Paraguay, and Uruguay. Chromosomal, molecular, isoenzymatic, and cuticular hydrocarbon pattern studies indicate cryptic speciation in T. sordida. Recently, T. rosai was described from specimens from Argentina initially characterized as T. sordida. Although several authors assume that the speciation process that supports this differentiation in T. sordida is the result of cryptic speciation, further morphological and/or morphometric studies are necessary to prove the application of this evolutionary event, because the only morphological intraspecific comparison performed in T. sordida is based on geometric morphometry and the only interspecific comparison made is between T. rosai and T. sordida from Brazil that evaluated morphological and morphometric differences. Based on this, morphological analyses of thorax and abdomen using Scanning Electron Microscopy and morphometric analyses of the head, thorax, and abdomen among T. sordida from Brazil, Bolivia, and Paraguay, as well as T. rosai, were performed to assess whether the evolutionary process responsible for variations is the cryptic speciation phenomenon. Morphological differences in the thorax and female external genitalia, as well as morphometric differences in the head, thorax, abdomen, pronotum, and scutellum structures, were observed. Based on this, the evolutionary process that supports, so far, these divergences observed for T. sordida populations/T. sordida subcomplex is not cryptic speciation. Moreover, we draw attention to the necessity for morphological/morphometric studies to correctly apply the cryptic species/speciation terms in triatomines. Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) Instituto de Biociências de Botucatu, Distrito de Rubião Junior Laboratório de Entomologia em Saúde Pública Departamento de Epidemiologia Faculdade de Saúde Pública Universidade de São Paulo (USP) Laboratório de Parasitologia Faculdade de Ciências Farmacêuticas Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) Laboratório Nacional e Internacional de Referência em Taxonomia de Triatomíneos Instituto Oswaldo Cruz (FIOCRUZ) Pavilhão Rocha Lima Departamento de Medicina Tropical Instituto de Investigaciones en Ciencias de la Salud (IICS) Universidad Nacional de Asunción, Campus Universitario Laboratorio de Biología Molecular de Protozoarios Facultad de Medicina Instituto de Medicina Tropical Universidad Central de Venezuela Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) Instituto de Biociências de Botucatu, Distrito de Rubião Junior Laboratório de Parasitologia Faculdade de Ciências Farmacêuticas Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)
Published: 2021

131. Pediocin PA-1 production by Pediococcus pentosaceus ET34 using non-detoxified hemicellulose hydrolysate obtained from hydrothermal pretreatment of sugarcane bagasse

Author: Bernadette Dora Gombossy de Melo Franco, Sarita Cândida Rabelo, Welington Luiz Araújo, Paula M. O'Connor, Taís M. Kuniyoshi, Viviane Borges Vieira, Ricardo Pinheiro de Souza Oliveira, Diogo Robl, Livia Paula Silva Palmeiras Vasconcellos, Elisabetta Tomé, Alessandro M. Varani, Attilio Converti, Svetoslav Dimitrov Todorov, Paul D. Cotter, Carlos Miguel Nóbrega Mendonça, Universidade de São Paulo (USP), Universidade Federal de Santa Catarina (UFSC), Handong Global University, Universidad Central de Venezuela, Food Bioscience Department Teagasc Food Research Centre, University College Cork, Genoa University, National Research Center for Energy and Materials (CNPEM), Universidade Estadual Paulista (UNESP), Handong Global Univ, Univ Cent Venezuela, Teagasc Food Res Ctr, Univ Coll Cork, Genoa Univ, and Natl Res Ctr Energy & Mat CNPEM
Subjects: Environmental Engineering, Central composite design, Pediocins, Bacteriocin, +Pediococcus+pentosaceus+<%22">< em > Pediococcus pentosaceus <, Bioengineering, Sugarcane bagasse, Hemicellulose hydrolysate, %22">em >, Hydrolysate, chemistry.chemical_compound, Bacteriocins, Polysaccharides, Hemicellulose, Food science, Pediococcus, Cellulose, Waste Management and Disposal, Hemicellulose hydrolysat, Pediococcus pentosaceus, biology, Renewable Energy, Sustainability and the Environment, Chemistry, MICROBIOLOGIA, General Medicine, Biorefinery, biology.organism_classification, Saccharum, Valorisation, Bagasse
Abstract: Made available in DSpace on 2022-04-28T17:22:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-08-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Listeria monocytogenes is one of the foodborne pathogens of most concern for food safety. To limit its presence in foods, bacteriocins have been proposed as natural bio-preservatives. Herein, a bacteriocin was produced on hemicellulose hydrolysate of sugarcane bagasse by Pediococcus pentosaceous ET34, whose genome sequencing revealed an operon with 100% similarity to that of pediocin PA-1. ET34 grown on hydrolysate-containing medium led to an increase in the expression of PA-1 genes and a non-optimized purification step sequence resulted in a yield of 0.8 mg & sdot;L-1 of pure pediocin (purity > 95%). Culture conditions were optimized according to a central composite design using temperature and hydrolysate % as independent variables and validated in 3-L Erlenmeyers. Finally, a process for scaled-up implementation by sugar-ethanol industry was proposed, considering green chemistry and biorefinery concepts. This work stands up as an approach addressing a future proper sugarcane bagasse valorisation for pediocin production. Superscript/Subscript Available
Published: 2021

132. Heterogeneous contributions of change in population distribution of body mass index to change in obesity and underweight

Author: Maryam Sharafkhah, Emanuel Zitt, Majid Ezzati, Luxia Zhang, Young-Ho Khang, Ellina Rakhimova, Kairit Mikkel, Tiina Vlasoff, Eruke E. Egbagbe, Sidsel Graff-Iversen, Ilona Nenko, Magdalena Klimek, Mathilde Savy, Sanjib Kumar Sharma, Alfonso Siani, Luís Lopes, Vanina Bongard, Gregor Jurak, Jacqueline F. Price, Christina-Paulina Lambrinou, Maria Lc Iurilli, Rainford J. Wilks, Bontha V. Babu, Fereidoun Azizi, Harunobu Nakamura, Marialaura Bonaccio, Angela Döring, Zhenyu Zhang, Naser Ahmadi, Jolanta Słowikowska-Hilczer, Ana Paula Carlos Cândido, Clive Osmond, Thirunavukkarasu Sathish, Robert J. Adams, Themistoklis Tzotzas, Reina Engle-Stone, Atul Trivedi, Shoichiro Tsugane, Niels Møller, Jorge Bezerra, Dénes Molnár, Muhammad Fadhli Mohd Yusoff, Badreya Al-Lahou, J. Jaime Miranda, Bahram Mohajer, Sigmund A. Anderssen, Lital Keinan Boker, Eero Kajantie, Martin Gulliford, Maties Torrent, Sumit Bharadwaj, Toshiharu Ninomiya, Zbigniew Gaciong, Nayu Ikeda, Li Juan Wu, Adrian Richter, Licia Iacoviello, Marc J. Gunter, Wenbin Wei, Norsyamlina Che Abdul Rahim, Eman Aly, Ambady Ramachandran, Nils Lehmann, Soile E. Puhakka, Giovanni Veronesi, Hongsheng Bi, Eiji Oda, Jia Li Duan, Per Tynelius, José María Huerta, Janne Schurmann Tolstrup, Rodrigo M. Carrillo-Larco, Rosangela Fernandes Lucena Batista, Victoria E Soto-Rojas, Hanno Ulmer, Shukri F. Mohamed, Anthony Kafatos, Suyeon Park, Mohsen Ibrahim, Hamed Pouraram, Bin Zhou, May Soe Aung, Lars Bo Andersen, Erfan Ghasemi, René Charles Sylva, Himanshu K. Chaturvedi, Luc Dauchet, Ahmad Ali Zainuddin, Angela Chetrit, Dan Zhu, Valérie Deschamps, Ko Ko Zaw, Peter Vollenweider, Tomas Vega, Yves Martin-Prével, Mahfuzar Rahman, Dorja Vočanec, Roman Topor-Madry, Vinay Nangia, Herculina S. Kruger, Asher Fawwad, Emily Sonestedt, Elena Pahomova, Aleksander Giwercman, Elżbieta Dziankowska-Zaborszczyk, Cecilia Björkelund, Tatjana Hejgaard, Maria Puiu, Maria Benedetta Donati, Andrew Wong, Carlos P. Boissonnet, Santosh K. Bhargava, Patrick Kolsteren, Dermot O'Reilly, Bahareh Kheiri, Wolfgang Kratzer, Susanne R. de Rooij, H. Bas Bueno-de-Mesquita, Günther Fink, José R. Banegas, Michele Monroy-Valle, Drude Molbo, Mahmudur Rahman, Hynek Pikhart, Rafael N. Pichardo, Massimo Salvetti, Hui Cai, Sarah Filippi, Georg Posch, Hung-Kwan So, Yonghua Hu, Katsuyasu Kouda, Joana Carvalho, Gailute Bernotiene, Hannu Uusitalo, Thein Thein Htay, Felix Kaducu, Maigeng Zhou, Lars Ängquist, Thi Tuyet-Hanh Tran, Charles Lunogelo, Michel Joffres, Sabina Zambon, Ronald D. Gregor, Vayia Rarra, Seyed Mohammad Hashemi-Shahri, Loreto Santa Marina, Galina Obreja, Rudolf Kaaks, Aya Mostafa, Maria do Carmo Franco, Beata Gurzkowska, Chien-Jen Chen, Marie Moitry, Nizal Sarrafzadegan, Xiangjun Wang, Diego Giulliano Destro Christofaro, Imperia Brajkovich, Fangfang Chen, Francesco Panza, Ling Yang, Holly E. Syddall, Cecily Kelleher, Michael Tornaritis, Ningli Wang, Lutgarde Thijs, Marjolein Visser, Angelika Schaffrath Rosario, María José Tormo, Jostein Steene-Johannessen, Norbert Amougou, Emmanuella Magriplis, Mar Alvarez-Pedrerol, Jingli Gao, Stig E. Bojesen, Giuseppe Grosso, Seongjun Ha, Lauren Lissner, Mikhail Benet, Anastasia Markaki, Sanjay Rampal, Antônio Augusto Moura da Silva, Maria Lorenza Muiesan, Angelique Chan, Yvonne T. van der Schouw, Annamari Lundqvist, Philippe Amouyel, Kristyna Zejglicova, Charalambos Hadjigeorgiou, João Breda, Jørgen Meisfjord, Fatima Zahra Laamiri, Carl Lachat, Kai-Uwe Saum, Vilma Irazola, Leng Huat Foo, Óscar Lopes, Dickman Gareta, Flavio Nervi, Imre Janszky, Ruzena Kubinova, Terho Lehtimäki, Mario V. Capanzana, Moyses Szklo, Ramfis Nieto-Martínez, Viswanathan Mohan, Shuohua Chen, Arvind Pandey, Luigi Palmieri, Roya Kelishadi, Srinivasan Kannan, Jie Mi, Robert Beaglehole, Liliana Dacica, Jyrki K. Virtanen, Mohan Deepa, Peter Ueda, Isti Ilmiati Fujiati, Hermann Pohlabeln, Morten Sodemann, Jytte Halkjær, Zbigniew Kułaga, Sophie Visvikis-Siest, Farshad Farzadfar, Mohsen Azimi-Nezhad, Henry Völzke, Karolina Milkowska, Zahra Mohammadi, Belgin Ünal, Magda Gasull, George S. Stergiou, Marshall K. Tulloch-Reid, Seppo Koskinen, James E. Bennett, Marcela González-Gross, Virginija Dulskiene, Idris Guessous, Assembekov Batyrbek, Kamarul Imran Musa, Jeannette Lee, Josep Redon, Bihungum Bista, Luisa M Macieira, Johan Sundström, Andres Metspalu, Lariane M Ono, Flora A. Ukoli, Salar Rahimikazerooni, Andrea Gualtieri, Trevor S. Ferguson, Félicité Tchibindat, Eliza Cinteza, Ha Tp Do, Tajana Zeljkovic Vrkic, Tuyen D Le, Alison J. Hayes, Abdul Basit, Chandini Nekkantti, Teresa Norat, Eunice Ugel, Gulmira Aitmurzaeva, Mariachiara Di Cesare, Abdul Hamid Zargar, Vincenzo Solfrizzi, Garry L. Jennings, Aline Meirhaeghe, Kaare Christensen, Päivi Mäki, Xu Lin, Ali Esmaeili, Joanna Baran, Aneta Grajda, Renata Cifkova, Alexandre C. Pereira, Martin Bobak, Iuliia A Rusakova, Keiu Nelis, Damian K Francis, Guansheng Ma, Axel C. Carlsson, Alejandro Diaz, Alireza Ansari-Moghaddam, N Capkova, Zumin Shi, Maria Turley, Imelda A. Agdeppa, Helena I. S. Nogueira, Marcia Scazufca, Katharina Maruszczak, Natascia Rinaldo, Paulo A. Lotufo, Nuno Lunet, Thor Aspelund, Caroline H.D. Fall, Antonio Cabrera de León, Ahmad Faudzi Yusoff, Holger Theobald, Beatriz D'Agord Schaan, Pedro Marques-Vidal, William A. Neal, Mihai Gafencu, Tandi E. Matsha, Ana B. Crujeiras, Ahmad Reza Dorosty, Alain Morejon, Weili Yan, Dominique Hange, Bekbolat Zholdin, Frédéric Gottrand, Jorge Mota, Jana Námešná, Stevo Popovic, Louise Eriksen, Line Lund Kårhus, Cihangir Erem, Juergen Breckenkamp, Mathilde Kersting, Yi Song, Martin McKee, Aleksandra Gomula, Rafaela Rosário, Enzo Manzato, S. Goya Wannamethee, Sounnia Mediene Benchekor, Azim Nejatizadeh, Krishna Kumar Aryal, Juan P. González-Rivas, Vedrana Sember, Stephen T. McGarvey, Jukka T. Salonen, Patrick Pasquet, Patricia Varona-Pérez, Amelia C. Crampin, Ramin Heshmat, Violeta Iotova, Juvenal Soares Dias-da-Costa, Oye Gureje, Aletta E. Schutte, João Luiz Bastos, Anelise Reis Gaya, Konrad Jamrozik, Dalia Luksiene, Amina Barkat, Maria Paula Santos, José Camolas, Azli Baharudin, Diego Vanuzzo, Doris Stöckl, Rosalynn Siantar, Jouko Saramies, Albertino Damasceno, Davood Khalili, Simona Bo, Martina Müller-Nurasyid, Dominique Cottel, Markku Peltonen, Fikru Tullu, Ana Isabel Rito, Angélica Ochoa-Avilés, Annette J. Dobson, Christopher T. Cowell, Charumathi Sabanayagam, Rildo de Souza Wanderley Júnior, Oanh T. H. Trinh, Farahnaz Joukar, Mostafa K. Mohamed, Mostafa Qorbani, Jeongseon Kim, Helmut Schröder, Machi Suka, Natasja M. van Schoor, Jussi Kauhanen, Teresa Haugsgjerd, Goodarz Danaei, M. Fernanda Lima-Costa, Yong Tao, Elisabetta L. Romeo, Grazyna Jasienska, Victor Guillermo Sequera, Kazem Mohammad, Yanina Zócalo, Fernanda Cunha Soares, Jianfeng Wu, Mohammad Esmaeel Motlagh, María Elena Díaz-Sánchez, Monika Zuziak, Eldridge Ferrer, Anette Varbo, Leila Beltrami Moreira, Jeremy M. Jacobs, Kenneth James, Elena Sacchini, Pascal Bovet, Mahboubeh Parsaeian, Tania Lopez, Ya Xing Wang, Wojciech Drygas, Jody C Miller, Svetlana A. Shalnova, Maria Elisa Zapata, Chung T Nguyen, Nimmathota Arlappa, Edwige Landais, Thorkild I. A. Sørensen, Jeannette Klimont, Amirabbas Momenan, Erik J. Timmermans, Mari-Liis Tammesoo, Jost B. Jonas, Stefania Toselli, Maria Teresa Anselmo Olinto, Bahman Cheraghian, Kouamelan Doua, Esteban Carmuega, Marjeta Mišigoj-Duraković, Bo Werner, M. Arfan Ikram, Breige A. McNulty, Christa Meisinger, Clara Homs, Namuna Shrestha, Alina Kerimkulova, Youcef Laid, Claes Ohlsson, Alicia Matijasevich, Alison J Price, Ala'a Alkerwi, Kristine H. Allin, Lorenza Pilotto, Mohannad Al Nsour, Ingunn Holden Bergh, Marianna Noale, Heba Fouad, Vilnis Dzerve, Novie O. Younger-Coleman, Peter Willeit, Andrea R. V. R. Horimoto, Freda Pitakaka, Habiba Ben Romdhane, Savvas C. Savva, Rajeev Gupta, Jennifer Servais, Cristina Padez, Sarah P. Garnett, Maria del Cristo Rodriguez-Perez, Michala Lustigová, Tien Yin Wong, Rosa Haghshenas, Jonathan Giovannelli, Christina Howitt, Marleen E. Hendriks, Fadia AlBuhairan, Huashuai Chen, Gretchen A Stevens, Luís B. Sardinha, David Goltzman, Jenny M. Kindblom, Karina Mary de Paiva, Yousef Khader, Eric Monterrubio-Flores, Rajendra Pradeepa, Yi-Ting Lin, Martin Neovius, Juan Francisco Miquel, Ellis Owusu-Dabo, Anil Poudyal, Marzieh Katibeh, Tanja Stocks, Veronica Mocanu, Ulla Roggenbuck, Robespierre Ribeiro, Gabriele Eiben, Mary Simon, Christine Cameron, Hamid Hakimi, Kamel Ajlouni, Jakub Stokwiszewski, Iulia Jurca Simina, Pietro Amedeo Modesti, Frederick C. W. Wu, Peter Kristensen, Charles Mondo, Felix Gutzwiller, Mariana Sbaraini, Martijn Huisman, Betina H. Thuesen, Queenie Chan, Antonisamy Belavendra, Artur Mazur, Ulf Ekelund, Laura A. Rodríguez-Villamizar, Marcos André Moura-dos-Santos, Jean Ferrières, Farhad Zamani, Shina Avi, Yves Kameli, Luis Paulo Gomes Mascarenhas, Aluísio J D Barros, Thomas Meinertz Dantoft, Hossein Poustchi, Farid Najafi, Giovanni de Gaetano, Azaliia M Tuliakova, Vera Lanska, Tint Swe Latt, Matthias Bopp, Abbas Rezaianzadeh, Rod Jackson, Johan Van der Heyden, Reecha Sofat, Koen Van Herck, Allan G. Hill, Con Burns, Emanuela Pettenuzzo, Ming-Dong Wang, Stela McLachlan, Ulrike Gehring, Ranko Stevanovic, Nagalla Balakrishna, Lekhraj Rampal, Marjolijn C. E. Bragt, Saeid Eslami, Napoleón Pérez-Farinós, G. K. Mini, Viktoria Anna Kovacs, Rosemarie Martin, Nahla Hwalla, Wei Zheng, Hoang Van Minh, Edward D Janus, Laetitia Huiart, Farhad Pourfarzi, Sudha Ramachandra Rao, Fred Paccaud, Marcia Makdisse, Aye Aye Sein, Enrique Gutiérrez-González, Yang Yang, Anneke Blokstra, Henrike Galenkamp, Jaume Marrugat, Nazan Yardim, Wan Nazaimoon Wan Mohamud, Jesús Ibarluzea, Julio Zuñiga Cisneros, Laura Lauria, Argyro Karakosta, Dragana P Jovic, Jun Hata, Elio Riboli, Piotr Bandosz, Xun Tang, Parvina Mukhtorova, Jean Dallongeville, Jean-Bernard Ruidavets, Anne Tjønneland, Guillermo Frontera, Rahul Malhotra, Thomas Ferrao, Aleksandra Piwońska, Dusan Grafnetter, Mette Rasmussen, Daniel Weghuber, Sherali Rakhmatulloev, Martine Vrijheid, Johann Willeit, Motahareh Kheradmand, Małgorzata Mossakowska, Lechaba Tshepo, Dongfeng Gu, Hyeon Chang Kim, Vilmundur Gudnason, Maria Forsner, Peter Bjerregaard, Leon A. Simons, Rachael McLean, Japhet Killewo, Ramón Suárez-Medina, Y Nikitin, Eng Joo Tan, Jean Claude Mbanya, Aroor Bhagyalaxmi, Renata Kuciene, Kairat Davletov, Jose Eugenio Lozano, Afshin Ostovar, Niloofar Peykari, Guy De Backer, Soheir H Ahmed, Nicholas J. Wareham, Sai Yin Ho, Constanta Huidumac Petrescu, Maria Hassapidou, Iris Pigeot, Myriam Galfo, Susana Cararo Confortin, Blanca Sandra Ruiz-Betancourt, W. M. Monique Verschuren, Catterina Ferreccio, Fabio Galvano, Leila Houti, Daniel Bia, Annika Rosengren, Marcin Rutkowski, Biruta Velika, Joana Araújo, Fernando Rigo, Angela Spinelli, Scott B. McLean, Shirin Djalalinia, Marie Kunešová, Boban Mugoša, Sania Nishtar, Mangesh S. Pednekar, Shahla AlDhukair, Helle-Mai Loit, Antonis Zampelas, Altan Onat, Maciej Banach, Shohreh Naderimagham, Hajer Aounallah-Skhiri, Maja Bæksgaard Jørgensen, Yin Guo, Ewelina Czenczek-Lewandowska, Parasmani Dasgupta, Elvis Oa Wambiya, Inge Huybrechts, Raimund Erbel, Jari Jokelainen, Ana P. Ortiz, Stefan Kiechl, Emmanuel Cohen, Caleb Ochimana, Shynar Abdrakhmanova, Laura Censi, Iqbal Bata, Geetha R Menon, Snehalatha Chamukuttan, Pedro Plans-Rubio, Domenico Palli, Ana Azevedo, Slawomir Koziel, Benoît Salanave, Parinaz Mehdipour, Shu Ti Chiou, Lela Sturua, Lubica Ticha, Felipe Vogt Cureau, Jin Soo Moon, Ming-Hui Zhao, Urho M. Kujala, Nathalie Michels, Ertugrul Celikcan, Jaakko Tuomilehto, Judith Benedics, Tobias F. Rinke de Wit, Agnès Le Port, Reza Homayounfar, Andrea Rodriguez-Martinez, Tai Hing Lam, Yn-Tz Sung, Jürgen König, Kodavanti Mallikharjuna Rao, Hazzaa M. Al-Hazzaa, Karen Morgan, Bogdan Wojtyniak, Cynthia M. Pérez, Ilse Khouw, Manoli Garcia-de-la-Hera, Dong Wook Shin, Genc Burazeri, Ausra Petrauskiene, Charles Sossa Jérome, Kenisha Russell Jonsson, José Boggia, Daniela Galeone, Alice Bonilla-Vargas, Han Cg Kemper, Rahman Shiri, Stefaan Demarest, Else Karin Grøholt, San-Lin You, Adelheid Weber, Juha Auvinen, Aida Pilav, Sibel Gogen, Suzanne N Morin, Wan Mohamad Wan Bebakar, Viviane Cunha Cardoso, Kavumpurathu Raman Thankappan, Hana Zamrazilová, Frank Claessens, Karien Stronks, Helen Gonçalves, Tahir Aris, Luis Revilla, Sérgio Viana Peixoto, Zhamilya Battakova, Jing Liu, Eliza Markidou Ioannidou, Leticia Hernandez Cadena, Priscilla Duboz, Sandjaja, Tiina Laatikainen, Rafel Ramos, Sareh Eghtesad, Judith Simons, Orn Olafsson, E. Shyong Tai, Louise A. Baur, Nihal Thomas, Aung Soe Htet, Bente Sparboe-Nilsen, Paul Elliott, Soon-Woo Park, Angel R. Gonzalez, Ying-Wei Wang, Rob M. van Dam, Ryutaro Ohtsuka, Ludmila Sevcikova, Suhaila Abdul Ghaffar, Lynell V Maniego, Fariborz Mansour-Ghanaei, Maria Dorobantu, Giovanni Viegi, Xiaoguang Yang, Honor Bixby, Prakash C. Gupta, Ofra Kalter-Leibovici, Eugene Sobngwi, Ričardas Radišauskas, Jurate Medzioniene, Roy A Wong-McClure, Kim F. Michaelsen, Antonia Trichopoulou, Tania Tello, Francesco Branca, Johanna Gunnlaugsdottir, Els Clays, Wei-Yen Lim, Suzanne C. Ho, Toomas Veidebaum, Rebecca Goldsmith, Margot González-León, Matthias Nauck, Alibek Mereke, Marta Buoncristiano, Jakob Tarp, Rosalba Rojas-Martínez, Maya Tanrygulyyeva, Reza Malekzadeh, Abdonas Tamosiunas, Dimitrios Poulimeneas, Pedro Ordunez, Isabelle Herter-Aeberli, Khanh Le Nguyen Bao, Anne Juolevi, Vassilis Zafiropulos, Emanuela Gualdi-Russo, Jordi Sunyer, Manu Raj, Chaoqiang Jiang, Sofia Malyutina, Efthymios Kapantais, Maria Lazo-Porras, Maung Maung Than Htike, Michael Hobbs, Ranjit Mohan Anjana, Merike Liivak, Johan G. Eriksson, Margarita Samoutian, Andreia N. Pizarro, Mohammed Rasoul Tarawneh, Jean Woo, Kaspar Staub, Maria Teresa Menzano, Mojtaba Farjam, Adroaldo Cesar Araujo Gaya, Mohammad El-khateeb, Zulfiqar A Bhutta, Mukharram M. Bikbov, Hsien-Ho Lin, Oscar Noboa, Thomas Waldhör, Garry Brian, Simona Costanzo, Frank Tanser, Nor Azwany Yaacob, Michelle Cilia, Ivo Rakovac, Bill Stavreski, Ioannis Pagkalos, Ivan Pećin, Carlo M. Barbagallo, Abla M. Sibai, Yuna He, Matsuda Fumihiko, Bharathi Viswanathan, Ali Reza Safarpour, Wei Cheng Lo, Abdullatif Husseini, Jiang He, Liv Elin Torheim, Nipa Rojroongwasinkul, Aicha Soumare, Astrid Petersmann, Tomasz Grodzicki, Davide Noto, Panayiotis K. Yiallouros, Kelias P. Msyamboza, William R. Tebar, Yingfeng Zheng, Eha Nurk, Bhawesh Koirala, Ana Jelakovic, Suhad Bahijri, Freja B Kampmann, Qi Sheng You, Marika Ferrari, María-Elena González-Villalpando, Aline Wagner, Olfa Saidi, Anwar Batieha, Eduardo Capuano, Coimbatore Subramaniam Shanthirani, Dong Wook Kim, Albina A Fakhretdinova, Tom Wilsgaard, Maria Avdicova, Moesijanti Soekatri, Chiara Donfrancesco, Salim Mohanna, Paola Russo, Uruwan Yamborisut, Rafael dos Santos Henrique, Martin Nankap, Allan Linneberg, Khairil Si-Ramlee, Kirsten Mehlig, Christina Mavrogianni, Raluca Pop, Lèlita Santos, Graziella Bruno, Valentina Peterkova, Iná S. Santos, Georg Lappas, Alberto Palloni, Malay K. Mridha, Andrzej Pajak, Marta García-Solano, Stefaan De Henauw, Daniel Ferrante, Rute Santos, Anders Grøntved, Lucjan Szponar, Mihaela Vladulescu, Chien-An Sun, Jan A. Staessen, Paula Duarte de Oliveira, Norazizah Ibrahim Wong, Maria Nordendahl, Elaine M. Dennison, Jeonghee Lee, Diego Salmerón, Ida Maria Schmidt, Gao Pei, Noushin Mohammadifard, Igor Spiroski, Fernando Rodríguez-Artalejo, Xu Ma, Elin Pettersen Sørgjerd, Valéria Regecová, Cláudia S. Minderico, Johanna A. Otero, Jamila Abubakar Garba, Vesselka Duleva, Rui Ornelas, Ilpo Huhtaniemi, Cesar G. Victora, Lijuan Liu, Rody G. Sy, Mahmood Moosazadeh, Ali Ahmadi, Antonio Pedro Graça, Natalia Nowak-Szczepanska, Miao Li Chee, Michael Sjöström, Charles Agyemang, Shiqi Zhen, Xiu-Hua Guo, Pawel Kurjata, Jardena J. Puder, Mehrdad Azmin, Neil Murphy, Kaosar Afsana, Alireza Sadjadi, Johanna M. Geleijnse, Prashant Mathur, Elysée Claude Bika Lele, Raphael Mendes Ritti-Dias, Yannis Manios, Majid Shirani, Rosemary B. Duda, Liis Nelis, Jurate Klumbiene, Zhengming Chen, Wichai Aekplakorn, Alun Evans, Andrzej Wiecek, Lars Lind, Denise Eldemire-Shearer, Bernardo L. Horta, Macia Enguerran, Seyed Rasoul Zakavi, Daniel Fernández-Bergés, Kumiko Ohara, Ursula Kiechl-Kohlendorfer, Hermann Brenner, Przemyslaw Slusarczyk, Espen Bjertness, Jutta Stieber, Augusto Di Castelnuovo, Joel G. R. Roy, Aryeh D. Stein, Ruth Frikke-Schmidt, Vera Musil, Amaneh Shayanrad, Marcel Goldberg, Ramon O. Jimenez, Mohammad Reza Fattahi, Jolanda Hyska, Amir Houshang Mehrparvar, Elin Kolle, Mohamed Bamoshmoosh, Michelle Holdsworth, Felipe F. Casanueva, Børge G. Nordestgaard, Niels Wedderkopp, Eva Corpeleijn, Elias F. Gudmundsson, Antonio Mistretta, Daniel Lemogoum, Larissa Pruner Marques, Slavica Sović, Olli T. Raitakari, Marco Aurélio Peres, Alexandra Cucu, Gregorio Varela-Moreiras, Janine Clarke, Andrea Gazzinelli, Mieczysław Litwin, Sara Schramm, Xenophon Theodoridis, Harshpal Singh Sachdev, Mohammad Reza Mirjalili, Dimitrios Papandreou, Peter T. Katzmarzyk, Benjamin Acosta-Cazares, Ben Schöttker, Prabhdeep Kaur, Norlaila Mustafa, Shariq Rashid Masoodi, Sadaf G. Sepanlou, Adolfo Rubinstein, Francis Delpeuch, Julianne Williams, Abbas Dehghan, Leanne M. Riley, Heloisa Bettiol, Gabriele Nagel, Ellisiv B. Mathiesen, Ekaterina Stoyanova, Alisha N. Wade, Zhamyila Usupova, Arnaud Chiolero, Oonagh Markey, Jacqueline Ramke, Elena Bogova, Niveen M E Abu-Rmeileh, Nguyen D Nguyen, Tomasz Zdrojewski, Marjo-Riitta Järvelin, Jose Sanchez-Abanto, Rômulo Araújo Fernandes, Lourdes Ribas-Barba, Nalan Uysal, Mohamad Hasnan Ahmad, Krista Fischer, Maria Wany Louzada Strufaldi, Ramiro Guerrero, Farnam Mohebi, Tran Quoc Bao, Flávio Danni Fuchs, Salim Berkinbayev, Enisa Kujundzic, Sari Voutilainen, Farzad Hadaegh, Robert Lundqvist, Saeid Safiri, Iraj Mohebbi, George Luiz Lins Machado-Coelho, Annette Peters, Gonzalo Valdivia, Magdalena Korzycka, Rajiv T Erasmus, Masanori Iwasaki, Charmaine A. Duante, Sheikh Mohammed Shariful Islam, Quang Ngoc La, Ricky Eddie, Petra Rust, Daniela Rodrigues, Dirk De Bacquer, Karen Sparrenberger, Agneta Sjöberg, Thet Thet Mu, Katarzyna Dereń, Cora L. Craig, Jorge Motta, Janina Petkeviciene, Boyd Swinburn, Paibul Suriyawongpaisal, Visnja Djordjic, Ramón Alberto Rascón-Pacheco, Pradeep Joshi, Daan Kromhout, Marius B. Bjertness, Stefano Marventano, Juel Jarani, Alireza Khosravi, Eva Martos, David De Ridder, Lizzy M. Brewster, Nico Dragano, Liam Smeeth, Kenji Shibuya, Emma Ruiz Moreno, Hashem Jaddou, Grzegorz Sobek, Dimitrios Trichopoulos, Marvin Cervantes-Loaiza, Abu Am Hanif, Elaine M. Murtagh, Carlos A. Aguilar-Salinas, Graziella D'Arrigo, Kyungwon Oh, Heiner Boeing, Regina Heidinger-Felso, André Luiz Sena Guimarães, Balkish M. Naidu, Avula Laxmaiah, Ana M. B. Menezes, Marie Eliasen, Francesco Pistelli, Yuan He, Dusko Bjelica, José A. Casajús, Guang Ning, Lutgart Braeckman, Dirk Vanderschueren, Jochanan Stessman, Ivana Radic, Yi Zeng, Hans Concin, Damaskini Valvi, Sari Hantunen, Catherine Kyobutungi, Diego Augusto Santos Silva, Wenhua Zhao, Sok King Ong, Anne W. Taylor, Iraj Nabipour, Justyna Godos, Cyrus Cooper, Mattias Johansson, Samuel C. Dumith, Magdalena Muc, Sabine Schipf, Idowu O Senbanjo, Jim Mann, Rajaa Al-Raddadi, Yih Chung Tham, Kay-Tee Khaw, Joseph Cacciottolo, Ana Henriques, Sahar Saeedi Moghaddam, Reza Mohammadpourhodki, Bernhard O. Boehm, Songhomitra Panda-Jonas, Iveta Pudule, Elisabete Ramos, Lacramioara Aurelia Brinduse, Paul H. Lee, Terence W O'Neill, Javad Aghazadeh-Attari, Margus Punab, Bojan Jelaković, Camilla T. Damsgaard, Takafumi Ishida, Ekaterina Chikova-Iscener, Mirjam M. Heinen, Tazeen H. Jafar, Semánová Csilla, Constance Schultsz, Santiago F. Gomez, Raija Korpelainen, Edward W. Gregg, Laura Gutierrez, Pierre Traissac, Victor M. Herrera, Aristides M. Machado-Rodrigues, Fatemeh Malekzadeh, Shouling Wu, Jennifer L. Baker, Clicerio González-Villalpando, Eleonora d'Orsi, Irene G. M. van Valkengoed, Anna Fijałkowska, Wen-Harn Pan, Gregor Starc, Meghnath Dhimal, Murat Topbaş, George Moschonis, Robert Eggertsen, Abdullah Alkandari, Quang Ngoc Nguyen, Janette Walton, Elnaz Faramarzi, Saeed Dastgiri, Lien Braeckevelt, Nasheeta Peer, Radka Taxová Braunerová, Mohamed M. Ali, Steiner Krokstad, Harald Geiger, Morteza Shamshirgaran, Lela Shengelia, María Ángeles Dal Re Saavedra, Silvana Donoso, Khem Bahadur Karki, Timothy J. Key, Maria G. Grammatikopoulou, Susana Vale, Felix K. Assah, Juan A Rivera, Peter H. Whincup, Oana-Florentina Gheorghe-Fronea, Cassiano Ricardo Rech, Paul Ferdinand M. Reganit, Rachakulla Hari Kumar, Jaakko Mursu, Luis A. Moreno, Glen Gironella, Jelena Kos, Tilema Cama, Haakon E. Meyer, Jun Ma, Raphael E. Arku, Ziad Abdeen, Dianna J. Magliano, Jitendra Jonnagaddala, Konstantinos Gkiouras, Paola Nardone, Alberto Barceló, Tomi-Pekka Tuomainen, Francesco Gianfagna, Stefania Maggi, Mohammad Hossein Somi, Behrooz Hamzeh, Miquel Porta, Vesna Jureša, Alexander D. Deev, David Faeh, Antonio Bernabe-Ortiz, Sirkka Keinänen-Kiukaanniemi, Ian Hambleton, Stefan Savin, Andre Pascal Kengne, R. Krishna Kumar, Kurt Widhalm, Marco M Ferrario, Parisa Amiri, Anjani Kumar Jha, Thamara Hubler Figueiró, Jana Kratenova, Claudia M. Hormiga, Maria Tsigga, Zivka Dika, Indrapal I. Meshram, Ei Ei K. Nang, Ian Rouse, Rusidah Selamat, Paul Korrovits, Grethe S. Tell, Julie Taylor, Anabela Mota-Pinto, Paolo Vineis, Kotsedi D Monyeki, Khuong Quynh Long, Frank J Rühli, Shelly R. McFarlane, Sara Santos Sanz, Edyta Łuszczki, Maria G. Stathopoulou, Tara Coppinger, Karin De Ridder, Lucie Viet, Anna Bugge, Mehdi Yaseri, Safiah Md Yusof, Sandra C. Fuchs, Muhammad Islam, Irfan Nuhoglu, Rui Providência, Bernard Maire, Leandra Abarca-Gómez, Sinead Brophy, Maria Ruiz-Castell, Daniela Pierannunzio, Cristina Taddei, Gowri Mahasampath, Gustavo Velasquez-Melendez, Hanna Tolonen, Sudhir Kowlessur, Bagher Larijani, Laura Torres-Collado, Susi Kriemler, Ali Akbar Shayesteh, Cynthia Robitaille, Jorge Escobedo-de la Peña, Yufang Bi, Chinh Nguyen Huu, Line Tang Møllehave, Vincent Jr DeGennaro, Noor Ani Ahmad, Anar Dushpanova, Agustinus Soemantri, Susana Sans, Ionela Pascanu, Gwenaëlle Le Coroller, Inger Ariansen, Kodanda R Kanala, Gert B. M. Mensink, Abhijit Sen, Sergej M. Ostojic, Hanan F. Abdul Rahim, Hélène Delisle, Francisco J. Félix-Redondo, Yadlapalli S. Kusuma, Michael Knoflach, Moein Yoosefi, Tanja G. M. Vrijkotte, Wolfgang Ahrens, Osvaldo Santos, Bethlehem D. Solomon, Erik Lykke Mortensen, Nikhil D. Patel, Reynaldo Martorell, Ching-Yu Cheng, Stine Schramm, Hana Shimizu-Furusawa, Jacek Jóźwiak, Radwan Qasrawi, Herman Borghs, Zhanna Kalmatayeva, Heidi Klakk, Akram Pourshams, Naomi S. Levitt, Son Thai Pham, Simona Giampaoli, Dong Zhao, Indah Suci Widyahening, Merete Osler, Paula Margozzini, Silvia Bel-Serrat, Dora Romaguera, Monira Alarouj, Winsome R. Parnell, Marloes Cardol, Giota Touloumi, Janice Luisa Lukrafka, Adela Chirita-Emandi, Maryam Kavousi, Sanja Musić Milanović, Jean-Michel Gaspoz, Jalila El Ati, Sauli Herrala, Liang Xu, Pilar Guallar-Castillón, Bee Koon Poh, Luis Serra-Majem, Jonathan E. Shaw, Belong Cho, Daphne Mirkopoulou, Salvador Villalpando, Yuki Fujita, Tiffany K. Gill, Nish Chaturvedi, Erkin M. Mirrakhimov, Günay Can, Mark Woodward, Esther Lopez-Garcia, Mauro Virgílio Gomes de Barros, Ahmed A. Madar, Shoaib Afzal, Melanie J. Cowan, Gareth Stratton, Eduardo Salazar Martinez, Sameer Narake, Norie Sawada, Deepak Amarapurkar, Deepa Weerasekera, Diana A. 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Boddy, Jie Hao, David Alejandro González-Chica, Romana Roccaldo, Sara Magnacca, Peter Stehle, Victoria Farrugia Sant'Angelo, Gry Skodje, Maryam Keramati, Tabara Yasuharu, Ali Ghanbari, Gyulli M. Kazakbaeva, Takuro Furusawa, Felicia Cañete, Kari Kuulasmaa, Justina Vaitkeviciute, (NCD-RisC), NCD Risk Factor Collaboration, Imperial College London, Harvard T.H. Chan School of Public Health, Middlesex University [London], Organisation Mondiale de la Santé / World Health Organization Office (OMS / WHO), Montpellier Interdisciplinary center on Sustainable Agri-food systems (Social and nutritional sciences) (UMR MoISA), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Centre International de Hautes Etudes Agronomiques Méditerranéennes - Institut Agronomique Méditerranéen de Montpellier (CIHEAM-IAMM), Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Bordeaux population health (BPH), Université de Bordeaux (UB)-Institut de Santé Publique, d'Épidémiologie et de Développement (ISPED)-Institut National de la Santé et de la Recherche Médicale (INSERM), Interactions Gène-Environnement en Physiopathologie Cardio-Vasculaire (IGE-PCV), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Wellcome TrustEuropean Commission, Clinical Developmental Psychology, APH - Mental Health, Sociology, The Social Context of Aging (SoCA), Nutrition and Health, Iurilli, Maria LC [0000-0003-0409-1635], Zhou, Bin [0000-0002-1741-8628], Ezzati, Majid [0000-0002-2109-8081], Apollo - University of Cambridge Repository, Epidemiology and Data Science, APH - Aging & Later Life, APH - Societal Participation & Health, Public and occupational health, APH - Health Behaviors & Chronic Diseases, VU University medical center, APH 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Tunis El Manar, University of Oulu, University of Zagreb, University of Ljubljana, Caja Costarricense de Seguro Social, Al-Quds University, National Center of Public Healthcare, Qatar University, Birzeit University, Usmanu Danfodiyo University Teaching Hospital, Instituto Mexicano del Seguro Social, Flinders University, Mahidol University, BRAC James P Grant School of Public Health, University of Copenhagen, Copenhagen University Hospital, Food and Nutrition Research Institute, Urmia University of Medical Sciences, Instituto Nacional de Ciencias Médicas y Nutrición, University of Amsterdam, Shahrekord University of Medical Sciences, Non-Communicable Diseases Research Center, University of Oslo, University of Bremen, Republican Center for Health Promotion, Endocrinology and Genetics, Princess Nourah bint Abdulrahman University, Kuwait Institute for Scientific Research, King Abdulaziz University, Dasman Diabetes Institute, Aldara Hospital and Medical Center, King Abdullah International 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Pure Earth, Institute of Epidemiology Disease Control and Research, University of Turku, Institut Universitari d’Investigacióen AtencióPrima` ria Jordi Gol, Universiti Putra Malaysia, University of Malaya, Sotiria Hospital, University of Valencia, University of the Philippines, Slovak Academy of Sciences, Nutrition Research Foundation, Minas Gerais State Secretariat for Health, CS S. Agustín Ibsalut, Amsterdam Institute for Global Health and Development, National Institute of Health Doutor Ricardo Jorge, Universidade Nove de Julho, Public Health Agency of Canada, Canarian Health Service, Universidad Industrial de Santander, Associazione Calabrese di Epatologia, University of Minho, Fiji National University, Spanish Nutrition Foundation, Public Health Agency of Sweden, Institute of Food Sciences of the National Research Council, Sitaram Bhartia Institute of Science and Research, Kindergarten of Avlonari, National Institute of Health, Catalan Department of Health, Biodonostia Health Research Institute, Instituto de Saúde Ambiental, South Karelia Social and Health Care District, McMaster University, University of Saõ Paulo Clinics Hospital, Hospital Italiano de Buenos Aires, Rigshospitalet, Academic Medical Center of University of Amsterdam, The George Institute for Global Health, Center for Oral Health Services and Research Mid-Norway, Lagos State University College of Medicine, University of Las Palmas de Gran Canaria, Comenius University, National Center for Disease Control and Public Health, Nippon Medical School, Sungkyunkwan University, Finnish Institute of Occupational Health, Public Health Promotion and Development Organization, St Vincent’s Hospital, Nes Municipality, Health Polytechnic Jakarta II Institute, Diponegoro University, University of Bari, Institut Régional de SantéPublique, University of Bordeaux, Oslo Metropolitan University, Ss. Cyril and Methodius University, University of Leuven, Lamprecht und Stamm Sozialforschung und Beratung AG, Bonn University, National Institute of Public Health - National Institute of Hygiene, Kalina Malina Kindergarten, The Jikei University School of Medicine, Fu Jen Catholic University, National Statistical Office, Scientific Research Institute of Maternal and Child Health, University of Lincoln, Central University of Kerala, Amsterdam Public Health Research Institute, Health Service of Murcia, Institut d’Investigacio Sanitaria Illes Balears, University of Bologna, Hellenic Health Foundation, Government Medical College, Sefako Makgatho Health Science University, Addis Ababa University, Universidad Centro-Occidental Lisandro Alvarado, Meharry Medical College, Dokuz Eylul University, University of Tampere Tays Eye Center, Sabiha Gokcen Ilkokulu, Polytechnic Institute of Porto, Icahn School of Medicine at Mount Sinai, Universidad CEU San Pablo, University Miguel Hernandez, Vrije Universiteit Amsterdam, Sunflower Nursery School, North Karelia Center for Public Health, University of the Witwatersrand, Medical University of Vienna, Cork Institute of Technology, Institute for Medical Research, Xinjiang Medical University, Shanghai Educational Development Co. Ltd, Orebro University, University of London, Universitas Indonesia, Institute of Food and Nutrition Development of Ministry of Agriculture and Rural Affairs, Children’s Hospital of Fudan University, University of Cyprus, Niigata University, International Medical University, Iran University of Medical Sciences, Center for Diabetes and Endocrine Care, Peking University First Hospital, Jiangsu Provincial Center for Disease Control and Prevention, Sun Yat-sen University, West Kazakhstan Medical University, Inner Mongolia Medical University, University of Ghana, Maria Lc Iurilli , Bin Zhou , James E Bennett , Rodrigo M Carrillo-Larco , Marisa K Sophiea , Andrea Rodriguez-Martinez , Honor Bixby , Bethlehem D Solomon , Cristina Taddei , Goodarz Danaei , Mariachiara Di Cesare , Gretchen A Stevens , Leanne M Riley , Stefan Savin , Melanie J Cowan , Pascal Bovet , Albertino Damasceno , Adela Chirita-Emandi , Alison J Hayes , Nayu Ikeda , Rod T Jackson , Young-Ho Khang , Avula Laxmaiah , Jing Liu , J Jaime Miranda , Olfa Saidi , Sylvain Sebert , Maroje Sorić , Gregor Starc , Edward W Gregg , Leandra Abarca-Gómez , Ziad A Abdeen , Shynar Abdrakhmanova , Suhaila Abdul Ghaffar , Hanan F Abdul Rahim , Niveen M Abu-Rmeileh , Jamila Abubakar Garba , Benjamin Acosta-Cazares , Robert J Adams , Wichai Aekplakorn , Kaosar Afsana , Shoaib Afzal , Imelda A Agdeppa , Javad Aghazadeh-Attari , Carlos A Aguilar-Salinas , Charles Agyemang , Mohamad Hasnan Ahmad , Noor Ani Ahmad , Ali Ahmadi , Naser Ahmadi , Soheir H Ahmed , Wolfgang Ahrens , Gulmira Aitmurzaeva , Kamel Ajlouni , Hazzaa M Al-Hazzaa , Badreya Al-Lahou , Rajaa Al-Raddadi , Monira Alarouj , Fadia AlBuhairan , Shahla AlDhukair , Mohamed M Ali , Abdullah Alkandari , Ala'a Alkerwi , Kristine Allin , Mar Alvarez-Pedrerol , Eman Aly , Deepak N Amarapurkar , Parisa Amiri , Norbert Amougou , Philippe Amouyel , Lars Bo Andersen , Sigmund A Anderssen , Lars Ängquist , Ranjit Mohan Anjana , Alireza Ansari-Moghaddam , Hajer Aounallah-Skhiri , Joana Araújo , Inger Ariansen , Tahir Aris , Raphael E Arku , Nimmathota Arlappa , Krishna K Aryal , Thor Aspelund , Felix K Assah , Maria Cecília F Assunção , May Soe Aung , Juha Auvinen , Mária Avdicová , Shina Avi , Ana Azevedo , Mohsen Azimi-Nezhad , Fereidoun Azizi , Mehrdad Azmin , Bontha V Babu , Maja Bæksgaard Jørgensen , Azli Baharudin , Suhad Bahijri , Jennifer L Baker , Nagalla Balakrishna , Mohamed Bamoshmoosh , Maciej Banach , Piotr Bandosz , José R Banegas , Joanna Baran , Barbagallo CM, Alberto Barceló , Amina Barkat , Aluisio Jd Barros , Mauro Virgílio Gomes Barros , Abdul Basit , Joao Luiz D Bastos , Iqbal Bata , Anwar M Batieha , Rosangela L Batista , Zhamilya Battakova , Assembekov Batyrbek , Louise A Baur , Robert Beaglehole , Silvia Bel-Serrat , Antonisamy Belavendra , Habiba Ben Romdhane , Judith Benedics , Mikhail Benet , Ingunn Holden Bergh , Salim Berkinbayev , Antonio Bernabe-Ortiz , Gailute Bernotiene , Heloísa Bettiol , Jorge Bezerra , 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, Zhanna Kalmatayeva , Ofra Kalter-Leibovici , Yves Kameli , Freja B Kampmann , Kodanda R Kanala , Srinivasan Kannan , Efthymios Kapantais , Argyro Karakosta , Line L Kårhus , Khem B Karki , Marzieh Katibeh , Joanne Katz , Peter T Katzmarzyk , Jussi Kauhanen , Prabhdeep Kaur , Maryam Kavousi , Gyulli M Kazakbaeva , Ulrich Keil , Lital Keinan Boker , Sirkka Keinänen-Kiukaanniemi , Roya Kelishadi , Cecily Kelleher , Han Cg Kemper , Andre P Kengne , Maryam Keramati , Alina Kerimkulova , Mathilde Kersting , Timothy Key , Yousef Saleh Khader , Davood Khalili , Kay-Tee Khaw , Bahareh Kheiri , Motahareh Kheradmand , Alireza Khosravi , Ilse Msl Khouw , Ursula Kiechl-Kohlendorfer , Stefan Kiechl , Japhet Killewo , Dong Wook Kim , Hyeon Chang Kim , Jeongseon Kim , Jenny M Kindblom , Heidi Klakk , Magdalena Klimek , Jeannette Klimont , Jurate Klumbiene , Michael Knoflach , Bhawesh Koirala , Elin Kolle , Patrick Kolsteren , Jürgen König , Raija Korpelainen , Paul Korrovits , Magdalena Korzycka , 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Teresa A Olinto , Isabel O Oliveira , Mohd Azahadi Omar , Altan Onat , Sok King Ong , Lariane M Ono , Pedro Ordunez , Rui Ornelas , Ana P Ortiz , Pedro J Ortiz , Merete Osler , Clive Osmond , Sergej M Ostojic , Afshin Ostovar , Johanna A Otero , Kim Overvad , Ellis Owusu-Dabo , Fred Michel Paccaud , Cristina Padez , Ioannis Pagkalos , Elena Pahomova , Karina Mary de Paiva , Andrzej Pajak , Domenico Palli , Alberto Palloni , Luigi Palmieri , Wen-Harn Pan , Songhomitra Panda-Jonas , Arvind Pandey , Francesco Panza , Dimitrios Papandreou , Soon-Woo Park , Suyeon Park , Winsome R Parnell , Mahboubeh Parsaeian , Ionela M Pascanu , Patrick Pasquet , Nikhil D Patel , Ivan Pecin , Mangesh S Pednekar , Nasheeta Peer , Gao Pei , Sergio Viana Peixoto , Markku Peltonen , Alexandre C Pereira , Marco A Peres , Napoleón Pérez-Farinós , Cynthia M Pérez , Valentina Peterkova , Annette Peters , Astrid Petersmann , Janina Petkeviciene , Ausra Petrauskiene , Emanuela Pettenuzzo , Niloofar Peykari , Son 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, Cassiano Ricardo Rech , Josep Redon , Paul Ferdinand M Reganit , Valéria Regecová , Luis Revilla , Abbas Rezaianzadeh , Lourdes Ribas-Barba , Robespierre Ribeiro , Elio Riboli , Adrian Richter , Fernando Rigo , Natascia Rinaldo , Tobias F Rinke de Wit , Ana Rito , Raphael M Ritti-Dias , Juan A Rivera , Cynthia Robitaille , Romana Roccaldo , Daniela Rodrigues , Fernando Rodríguez-Artalejo , María Del Cristo Rodriguez-Perez , Laura A Rodríguez-Villamizar , Ulla Roggenbuck , Rosalba Rojas-Martinez , Nipa Rojroongwasinkul , Dora Romaguera , Elisabetta L Romeo , Rafaela V Rosario , Annika Rosengren , Ian Rouse , Joel Gr Roy , Adolfo Rubinstein , Frank J Rühli , Jean-Bernard Ruidavets , Blanca Sandra Ruiz-Betancourt , Maria Ruiz-Castell , Emma Ruiz Moreno , Iuliia A Rusakova , Kenisha Russell Jonsson , Paola Russo , Petra Rust , Marcin Rutkowski , Charumathi Sabanayagam , Elena Sacchini , Harshpal S Sachdev , Alireza Sadjadi , Ali Reza Safarpour , Saeid Safiri , Nader Saki , Benoit Salanave , Eduardo Salazar Martinez , Diego Salmerón , Veikko Salomaa , Jukka T Salonen , Massimo Salvetti , Margarita Samoutian , Jose Sánchez-Abanto , Sandjaja , Susana Sans , Loreto Santa Marina , Diana A Santos , Ina S Santos , Lèlita C Santos , Maria Paula Santos , Osvaldo Santos , Rute Santos , Sara Santos Sanz , Jouko L Saramies , Luis B Sardinha , Nizal Sarrafzadegan , Thirunavukkarasu Sathish , Kai-Uwe Saum , Savvas Savva , Mathilde Savy , Norie Sawada , Mariana Sbaraini , Marcia Scazufca , Beatriz D Schaan , Angelika Schaffrath Rosario , Herman Schargrodsky , Anja Schienkiewitz , Sabine Schipf , Carsten O Schmidt , Ida Maria Schmidt , Peter Schnohr , Ben Schöttker , Sara Schramm , Stine Schramm , Helmut Schröder , Constance Schultsz , Aletta E Schutte , Aye Aye Sein , Rusidah Selamat , Vedrana Sember , Abhijit Sen , Idowu O Senbanjo , Sadaf G Sepanlou , Victor Sequera , Luis Serra-Majem , Jennifer Servais , Ludmila Ševcíková , Svetlana A Shalnova , Teresa Shamah-Levy , Morteza Shamshirgaran , Coimbatore Subramaniam Shanthirani , Maryam Sharafkhah , Sanjib K Sharma , Jonathan E Shaw , Amaneh Shayanrad , Ali Akbar Shayesteh , Lela Shengelia , Zumin Shi , Kenji Shibuya , Hana Shimizu-Furusawa , Dong Wook Shin , Majid Shirani , Rahman Shiri , Namuna Shrestha , Khairil Si-Ramlee , Alfonso Siani , Rosalynn Siantar , Abla M Sibai , Antonio M Silva , Diego Augusto Santos Silva , Mary Simon , Judith Simons , Leon A Simons , Agneta Sjöberg , Michael Sjöström , Gry Skodje , Jolanta Slowikowska-Hilczer , Przemyslaw Slusarczyk , Liam Smeeth , Hung-Kwan So , Fernanda Cunha Soares , Grzegorz Sobek , Eugène Sobngwi , Morten Sodemann , Stefan Söderberg , Moesijanti Ye Soekatri , Agustinus Soemantri , Reecha Sofat , Vincenzo Solfrizzi , Mohammad Hossein Somi , Emily Sonestedt , Yi Song , Thorkild Ia Sørensen , Elin P Sørgjerd , Charles Sossa Jérome , Victoria E Soto-Rojas , Aïcha Soumaré , Slavica Sovic , Bente Sparboe-Nilsen , Karen Sparrenberger , Angela Spinelli , Igor Spiroski , Jan A Staessen , Hanspeter Stamm , Maria G Stathopoulou , Kaspar Staub , Bill Stavreski , Jostein Steene-Johannessen , Peter Stehle , Aryeh D Stein , George S Stergiou , Jochanan Stessman , Ranko Stevanovic , Jutta Stieber , Doris Stöckl , Tanja Stocks , Jakub Stokwiszewski , Ekaterina Stoyanova , Gareth Stratton , Karien Stronks , Maria Wany Strufaldi , Lela Sturua , Ramón Suárez-Medina , Machi Suka , Chien-An Sun , Johan Sundström , Yn-Tz Sung , Jordi Sunyer , Paibul Suriyawongpaisal , Boyd A Swinburn , Rody G Sy , Holly E Syddall , René Charles Sylva , Moyses Szklo , Lucjan Szponar , E Shyong Tai , Mari-Liis Tammesoo , Abdonas Tamosiunas , Eng Joo Tan , Xun Tang , Maya Tanrygulyyeva , Frank Tanser , Yong Tao , Mohammed Rasoul Tarawneh , Jakob Tarp , Carolina B Tarqui-Mamani , Radka Taxová Braunerová , Anne Taylor , Julie Taylor , Félicité Tchibindat , William R Tebar , Grethe S Tell , Tania Tello , Yih Chung Tham , K R Thankappan , Holger Theobald , Xenophon 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Islam, Muhammad, Islam, Sheikh Mohammed Shariful, Iwasaki, Masanori, Jacobs, Jeremy M, Jaddou, Hashem Y, Jafar, Tazeen, James, Kenneth, Jamil, Kazi M, Jamrozik, Konrad, Janszky, Imre, Janus, Edward, Jarani, Juel, Jarvelin, Marjo-Riitta, Jasienska, Grazyna, Jelakovic, Ana, Jelakovic, Bojan, Jennings, Garry, Jha, Anjani Kumar, Jiang, Chao Qiang, Jimenez, Ramon O, Jöckel, Karl-Heinz, Joffres, Michel, Johansson, Mattia, Jokelainen, Jari J, Jonas, Jost B, Jonnagaddala, Jitendra, Jørgensen, Torben, Joshi, Pradeep, Joukar, Farahnaz, Jovic, Dragana P, Jóźwiak, Jacek J, Juolevi, Anne, Jurak, Gregor, Simina, Iulia Jurca, Juresa, Vesna, Kaaks, Rudolf, Kaducu, Felix O, Kafatos, Anthony, Kajantie, Eero O, Kalmatayeva, Zhanna, Kalter-Leibovici, Ofra, Kameli, Yve, Kampmann, Freja B, Kanala, Kodanda R, Kannan, Srinivasan, Kapantais, Efthymio, Karakosta, Argyro, Kårhus, Line L, Karki, Khem B, Katibeh, Marzieh, Katz, Joanne, Katzmarzyk, Peter T, Kauhanen, Jussi, Kaur, Prabhdeep, Kavousi, Maryam, Kazakbaeva, Gyulli M, Keil, Ulrich, Boker, Lital Keinan, Keinänen-Kiukaanniemi, Sirkka, Kelishadi, Roya, Kelleher, Cecily, Kemper, Han CG, Kengne, Andre P, Keramati, Maryam, Kerimkulova, Alina, Kersting, Mathilde, Key, Timothy, Khader, Yousef Saleh, Khalili, Davood, Khaw, Kay-Tee, Kheiri, Bahareh, Kheradmand, Motahareh, Khosravi, Alireza, Khouw, Ilse MSL, Kiechl-Kohlendorfer, Ursula, Kiechl, Stefan, Killewo, Japhet, Kim, Dong Wook, Kim, Hyeon Chang, Kim, Jeongseon, Kindblom, Jenny M, Klakk, Heidi, Klimek, Magdalena, Klimont, Jeannette, Klumbiene, Jurate, Knoflach, Michael, Koirala, Bhawesh, Kolle, Elin, Kolsteren, Patrick, König, Jürgen, Korpelainen, Raija, Korrovits, Paul, Korzycka, Magdalena, Kos, Jelena, Koskinen, Seppo, Kouda, Katsuyasu, Kovacs, Viktoria A, Kowlessur, Sudhir, Koziel, Slawomir, Kratenova, Jana, Kratzer, Wolfgang, Kriemler, Susi, Kristensen, Peter Lund, Krokstad, Steiner, Kromhout, Daan, Kruger, Herculina S, Kubinova, Ruzena, Kuciene, Renata, Kujala, Urho M, Kujundzic, Enisa, Kulaga, Zbigniew, Kumar, R Krishna, Kunešová, Marie, Kurjata, Pawel, Kusuma, Yadlapalli S, Kuulasmaa, Kari, Kyobutungi, Catherine, La, Quang Ngoc, Laamiri, Fatima Zahra, Laatikainen, Tiina, Lachat, Carl, Laid, Youcef, Lam, Tai Hing, Lambrinou, Christina-Paulina, Landais, Edwige, Lanska, Vera, Lappas, Georg, Larijani, Bagher, Latt, Tint Swe, Lauria, Laura, Lazo-Porras, Maria, Le Coroller, Gwenaëlle, Le Nguyen Bao, Khanh, Le Port, Agnè, Le, Tuyen D, Lee, Jeannette, Lee, Jeonghee, Lee, Paul H, Lehmann, Nil, Lehtimäki, Terho, Lemogoum, Daniel, Levitt, Naomi S, Li, Yanping, Liivak, Merike, Lilly, Christa L, Lim, Wei-Yen, Lima-Costa, M Fernanda, Lin, Hsien-Ho, Lin, Xu, Lin, Yi-Ting, Lind, Lar, Linneberg, Allan, Lissner, Lauren, Litwin, Mieczyslaw, Liu, Lijuan, Lo, Wei-Cheng, Loit, Helle-Mai, Long, Khuong Quynh, Lopes, Lui, Lopes, Oscar, Lopez-Garcia, Esther, Lopez, Tania, Lotufo, Paulo A, Lozano, José Eugenio, Lukrafka, Janice L, Luksiene, Dalia, Lundqvist, Annamari, Lundqvist, Robert, Lunet, Nuno, Lunogelo, Charle, Lustigová, Michala, Łuszczki, Edyta, Ma, Guansheng, Ma, Jun, Ma, Xu, Machado-Coelho, George LL, Machado-Rodrigues, Aristides M, Macieira, Luisa M, Madar, Ahmed A, Maggi, Stefania, Magliano, Dianna J, Magnacca, Sara, Magriplis, Emmanuella, Mahasampath, Gowri, Maire, Bernard, Majer, Marjeta, Makdisse, Marcia, Mäki, Päivi, Malekzadeh, Fatemeh, Malekzadeh, Reza, Malhotra, Rahul, Rao, Kodavanti Mallikharjuna, Malyutina, Sofia K, Maniego, Lynell V, Manios, Yanni, Mann, Jim I, Mansour-Ghanaei, Fariborz, Manzato, Enzo, Margozzini, Paula, Markaki, Anastasia, Markey, Oonagh, Ioannidou, Eliza Markidou, Marques-Vidal, Pedro, Marques, Larissa Pruner, Marrugat, Jaume, Martin-Prevel, Yve, Martin, Rosemarie, Martorell, Reynaldo, Martos, Eva, Maruszczak, Katharina, Marventano, Stefano, Mascarenhas, Luis P, Masoodi, Shariq R, Mathiesen, Ellisiv B, Mathur, Prashant, Matijasevich, Alicia, Matsha, Tandi E, Mavrogianni, Christina, Mazur, Artur, Mbanya, Jean Claude N, McFarlane, Shelly R, McGarvey, Stephen T, McKee, Martin, McLachlan, Stela, McLean, Rachael M, McLean, Scott B, McNulty, Breige A, Benchekor, Sounnia Mediene, Medzioniene, Jurate, Mehdipour, Parinaz, Mehlig, Kirsten, Mehrparvar, Amir Houshang, Meirhaeghe, Aline, Meisfjord, Jørgen, Meisinger, Christa, Menezes, Ana Maria B, Menon, Geetha R, Mensink, Gert BM, Menzano, Maria Teresa, Mereke, Alibek, Meshram, Indrapal I, Metspalu, Andre, Meyer, Haakon E, Mi, Jie, Michaelsen, Kim F, Michels, Nathalie, Mikkel, Kairit, Milkowska, Karolina, Miller, Jody C, Minderico, Cláudia S, Mini, GK, Miquel, Juan Francisco, Mirjalili, Mohammad Reza, Mirkopoulou, Daphne, Mirrakhimov, Erkin, Mišigoj-Durakovic, Marjeta, Mistretta, Antonio, Mocanu, Veronica, Modesti, Pietro A, Moghaddam, Sahar Saeedi, Mohajer, Bahram, Mohamed, Mostafa K, Mohamed, Shukri F, Mohammad, Kazem, Mohammadi, Zahra, Mohammadifard, Noushin, Mohammadpourhodki, Reza, Mohan, Viswanathan, Mohanna, Salim, Yusoff, Muhammad Fadhli Mohd, 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Paola, Nauck, Matthia, Neal, William A, Nejatizadeh, Azim, Nekkantti, Chandini, Nelis, Keiu, Nelis, Lii, Nenko, Ilona, Neovius, Martin, Nervi, Flavio, Nguyen, Chung T, Nguyen, Nguyen D, Nguyen, Quang Ngoc, Nieto-Martínez, Ramfis E, Nikitin, Yury P, Ning, Guang, Ninomiya, Toshiharu, Nishtar, Sania, Noale, Marianna, Noboa, Oscar A, Nogueira, Helena, Norat, Teresa, Nordendahl, Maria, Nordestgaard, Børge G, Noto, Davide, Nowak-Szczepanska, Natalia, Al Nsour, Mohannad, Nuhoglu, Irfan, Nurk, Eha, O'Neill, Terence W, O'Reilly, Dermot, Obreja, Galina, Ochimana, Caleb, Ochoa-Avilés, Angélica M, Oda, Eiji, Oh, Kyungwon, Ohara, Kumiko, Ohlsson, Clae, Ohtsuka, Ryutaro, Olafsson, Örn, Olinto, Maria Teresa A, Oliveira, Isabel O, Omar, Mohd Azahadi, Onat, Altan, Ong, Sok King, Ono, Lariane M, Ordunez, Pedro, Ornelas, Rui, Ortiz, Ana P, Ortiz, Pedro J, Osler, Merete, Osmond, Clive, Ostojic, Sergej M, Ostovar, Afshin, Otero, Johanna A, Overvad, Kim, Owusu-Dabo, Elli, Paccaud, Fred Michel, Padez, 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Cynthia, Roccaldo, Romana, Rodrigues, Daniela, Rodríguez-Artalejo, Fernando, del Cristo Rodriguez-Perez, María, Rodríguez-Villamizar, Laura A, Roggenbuck, Ulla, Rojas-Martinez, Rosalba, Rojroongwasinkul, Nipa, Romaguera, Dora, Romeo, Elisabetta L, Rosario, Rafaela V, Rosengren, Annika, Rouse, Ian, Roy, Joel GR, Rubinstein, Adolfo, Rühli, Frank J, Ruidavets, Jean-Bernard, Ruiz-Betancourt, Blanca Sandra, Ruiz-Castell, Maria, Moreno, Emma Ruiz, Rusakova, Iuliia A, Jonsson, Kenisha Russell, Russo, Paola, Rust, Petra, Rutkowski, Marcin, Sabanayagam, Charumathi, Sacchini, Elena, Sachdev, Harshpal S, Sadjadi, Alireza, Safarpour, Ali Reza, Safiri, Saeid, Saki, Nader, Salanave, Benoit, Martinez, Eduardo Salazar, Salmerón, Diego, Salomaa, Veikko, Salonen, Jukka T, Salvetti, Massimo, Samoutian, Margarita, Sánchez-Abanto, Jose, Sandjaja, null, Sans, Susana, Marina, Loreto Santa, Santos, Diana A, Santos, Ina S, Santos, Lèlita C, Santos, Maria Paula, Santos, Osvaldo, Santos, Rute, Sanz, Sara Santo, Saramies, Jouko L, Sardinha, Luis B, Sarrafzadegan, Nizal, Sathish, Thirunavukkarasu, Saum, Kai-Uwe, Savva, Savva, Savy, Mathilde, Sawada, Norie, Sbaraini, Mariana, Scazufca, Marcia, Schaan, Beatriz D, Rosario, Angelika Schaffrath, Schargrodsky, Herman, Schienkiewitz, Anja, Schipf, Sabine, Schmidt, Carsten O, Schmidt, Ida Maria, Schnohr, Peter, Schöttker, Ben, Schramm, Sara, Schramm, Stine, Schröder, Helmut, Schultsz, Constance, Schutte, Aletta E, Sein, Aye Aye, Selamat, Rusidah, Sember, Vedrana, Sen, Abhijit, Senbanjo, Idowu O, Sepanlou, Sadaf G, Sequera, Victor, Serra-Majem, Lui, Servais, Jennifer, Ševcíková, Ludmila, Shalnova, Svetlana A, Shamah-Levy, Teresa, Shamshirgaran, Morteza, Shanthirani, Coimbatore Subramaniam, Sharafkhah, Maryam, Sharma, Sanjib K, Shaw, Jonathan E, Shayanrad, Amaneh, Shayesteh, Ali Akbar, Shengelia, Lela, Shi, Zumin, Shibuya, Kenji, Shimizu-Furusawa, Hana, Shin, Dong Wook, Shirani, Majid, Shiri, Rahman, Shrestha, Namuna, Si-Ramlee, Khairil, Siani, Alfonso, Siantar, Rosalynn, Sibai, Abla M, Silva, Antonio M, Silva, Diego Augusto Santo, Simon, Mary, Simons, Judith, Simons, Leon A, Sjöberg, Agneta, Sjöström, Michael, Skodje, Gry, Slowikowska-Hilczer, Jolanta, Slusarczyk, Przemyslaw, Smeeth, Liam, So, Hung-Kwan, Soares, Fernanda Cunha, Sobek, Grzegorz, Sobngwi, Eugène, Sodemann, Morten, Söderberg, Stefan, Soekatri, Moesijanti YE, Soemantri, Agustinu, Sofat, Reecha, Solfrizzi, Vincenzo, Somi, Mohammad Hossein, Sonestedt, Emily, Song, Yi, Sørensen, Thorkild IA, Sørgjerd, Elin P, Jérome, Charles Sossa, Soto-Rojas, Victoria E, Soumaré, Aïcha, Sovic, Slavica, Sparboe-Nilsen, Bente, Sparrenberger, Karen, Spinelli, Angela, Spiroski, Igor, Staessen, Jan A, Stamm, Hanspeter, Stathopoulou, Maria G, Staub, Kaspar, Stavreski, Bill, Steene-Johannessen, Jostein, Stehle, Peter, Stein, Aryeh D, Stergiou, George S, Stessman, Jochanan, Stevanovic, Ranko, Stieber, Jutta, Stöckl, Dori, Stocks, Tanja, Stokwiszewski, Jakub, Stoyanova, Ekaterina, Stratton, Gareth, Stronks, Karien, Strufaldi, Maria Wany, Sturua, Lela, Suárez-Medina, Ramón, Suka, Machi, Sun, Chien-An, Sundström, Johan, Sung, Yn-Tz, Sunyer, Jordi, Suriyawongpaisal, Paibul, Swinburn, Boyd A, Sy, Rody G, Syddall, Holly E, Sylva, René Charle, Szklo, Moyse, Szponar, Lucjan, Tai, E Shyong, Tammesoo, Mari-Lii, Tamosiunas, Abdona, Tan, Eng Joo, Tang, Xun, Tanrygulyyeva, Maya, Tanser, Frank, Tao, Yong, Tarawneh, Mohammed Rasoul, Tarp, Jakob, Tarqui-Mamani, Carolina B, Braunerová, Radka Taxová, Taylor, Anne, Taylor, Julie, Tchibindat, Félicité, Tebar, William R, Tell, Grethe S, Tello, Tania, Tham, Yih Chung, Thankappan, KR, Theobald, Holger, Theodoridis, Xenophon, Thijs, Lutgarde, Thomas, Nihal, Thuesen, Betina H, Tichá, Lubica, Timmermans, Erik J, Tjonneland, Anne, Tolonen, Hanna K, Tolstrup, Janne S, Topbas, Murat, Topór-Madry, Roman, Torheim, Liv Elin, Tormo, María José, Tornaritis, Michael J, Torrent, Matie, Torres-Collado, Laura, Toselli, Stefania, Touloumi, Giota, Traissac, Pierre, Tran, Thi Tuyet-Hanh, Trichopoulos, Dimitrio, Trichopoulou, Antonia, Trinh, Oanh TH, Trivedi, Atul, Tshepo, Lechaba, Tsigga, Maria, Tsugane, Shoichiro, Tuliakova, Azaliia M, Tulloch-Reid, Marshall K, Tullu, Fikru, Tuomainen, Tomi-Pekka, Tuomilehto, Jaakko, Turley, Maria L, Twig, Gilad, Tynelius, Per, Tzotzas, Themistokli, Tzourio, Christophe, Ueda, Peter, Ugel, Eunice, Ukoli, Flora AM, Ulmer, Hanno, Unal, Belgin, Usupova, Zhamyila, Uusitalo, Hannu MT, Uysal, Nalan, Vaitkeviciute, Justina, Valdivia, Gonzalo, Vale, Susana, Valvi, Damaskini, van Dam, Rob M, Van der Heyden, Johan, van der Schouw, Yvonne T, Van Herck, Koen, Van Minh, Hoang, Van Schoor, Natasja M, van Valkengoed, Irene GM, Vanderschueren, Dirk, Vanuzzo, Diego, Varbo, Anette, Varela-Moreiras, Gregorio, Varona-Pérez, Patricia, Vasan, Senthil K, Vega, Toma, Veidebaum, Tooma, Velasquez-Melendez, Gustavo, Velika, Biruta, Veronesi, Giovanni, Verschuren, WM Monique, Victora, Cesar G, Viegi, Giovanni, Viet, Lucie, Villalpando, Salvador, Vineis, Paolo, Vioque, Jesu, Virtanen, Jyrki K, Visser, Marjolein, Visvikis-Siest, Sophie, Viswanathan, Bharathi, Vladulescu, Mihaela, Vlasoff, Tiina, Vocanec, Dorja, Vollenweider, Peter, Völzke, Henry, Voutilainen, Ari, Voutilainen, Sari, Vrijheid, Martine, Vrijkotte, Tanja GM, Wade, Alisha N, Wagner, Aline, Waldhör, Thoma, Walton, Janette, Wambiya, Elvis OA, Bebakar, Wan Mohamad Wan, Mohamud, Wan Nazaimoon Wan, de Souza Wanderley Júnior, Rildo, Wang, Ming-Dong, Wang, Ningli, Wang, Qian, Wang, Xiangjun, Wang, Ya Xing, Wang, Ying-Wei, Wannamethee, S Goya, Wareham, Nichola, Weber, Adelheid, Wedderkopp, Niel, Weerasekera, Deepa, Weghuber, Daniel, Wei, Wenbin, Weres, Aneta, Werner, Bo, Whincup, Peter H, Widhalm, Kurt, Widyahening, Indah S, Wiecek, Andrzej, Wilks, Rainford J, Willeit, Johann, Willeit, Peter, Williams, Julianne, Wilsgaard, Tom, Wojtyniak, Bogdan, Wong-McClure, Roy A, Wong, Andrew, Wong, Jyh Eiin, Wong, Tien Yin, Woo, Jean, Woodward, Mark, Wu, Frederick C, Wu, Jianfeng, Wu, Li Juan, Wu, Shouling, Xu, Haiquan, Xu, Liang, Yaacob, Nor Azwany, Yamborisut, Uruwan, Yan, Weili, Yang, Ling, Yang, Xiaoguang, Yang, Yang, Yardim, Nazan, Yaseri, Mehdi, Yasuharu, Tabara, Ye, Xingwang, Yiallouros, Panayiotis K, Yoosefi, Moein, Yoshihara, Akihiro, You, Qi Sheng, You, San-Lin, Younger-Coleman, Novie O, Md Yusof, Safiah, Yusoff, Ahmad Faudzi, Zaccagni, Luciana, Zafiropulos, Vassili, Zainuddin, Ahmad A, Zakavi, Seyed Rasoul, Zamani, Farhad, Zambon, Sabina, Zampelas, Antoni, Zamrazilová, Hana, Zapata, Maria Elisa, Zargar, Abdul Hamid, Ko Zaw, Ko, Zdrojewski, Tomasz, Zejglicova, Kristyna, Vrkic, Tajana Zeljkovic, Zeng, Yi, Zhang, Luxia, Zhang, Zhen-Yu, Zhao, Dong, Zhao, Ming-Hui, Zhao, Wenhua, Zhen, Shiqi, Zheng, Wei, Zheng, Yingfeng, Zholdin, Bekbolat, Zhou, Maigeng, Zhu, Dan, Zins, Marie, Zitt, Emanuel, Zocalo, Yanina, Cisneros, Julio Zuñiga, Zuziak, Monika, Ezzati, Majid, Filippi, Sarah, Cohortes épidémiologiques en population (CONSTANCES), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris-Saclay-Université Paris Cité (UPCité), Université Paris Cité (UPCité), Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Centre International de Hautes Études Agronomiques Méditerranéennes (CIHEAM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, and Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)
Subjects: Population -- Health aspects, Leanness, Baixo peso/Underweight, none, Double burden, alipainoisuus, tulotaso, global health, systematic analysis, Sedentary behaviors, RC1200, Prospective associations, 0302 clinical medicine, underweight, nälänhätä, Biology (General), skin and connective tissue diseases, Children, ComputingMilieux_MISCELLANEOUS, Body mass index, Human Nutrition & Health, education.field_of_study, Humane Voeding & Gezondheid, ylipaino, General Medicine, kansainvälinen vertailu, 3. Good health, World health, Medicine, A100 Pre-clinical Medicine, Population distribution, medicine.medical_specialty, QH301-705.5, Science, Socio-culturale, Nursing, Social sciences, General Biochemistry, Genetics and Molecular Biology, 03 medical and health sciences, Thinness, SDG 3 - Good Health and Well-being, BMI, epidemiology, obesity, None, Humans, Obesidade/Obesity, SDG 2 - Zero Hunger, education, VLAG, US adults, Omvårdnad, body mass index, malnutrition, obesity, underweight, nutritional and metabolic diseases, medicine.disease, terveellisyys, Obesity, Faculdade de Ciências Sociais, Body Mass Index, Prevalence, Risk Factors, General Biochemistry, WIAS, lihavuus, RA, Demography, N.A, double burden, Settore MED/09 - Medicina Interna, alueelliset erot, Nutrition and Disease, Animal Nutrition, [SDV]Life Sciences [q-bio], Medizin, 030204 cardiovascular system & hematology, 0601 Biochemistry and Cell Biology, Change distribution of body mass index, RA0421, Voeding en Ziekte, Epidemiology, Medicine and Health Sciences, Global health, Índice de massa corporal/Body Mass Index, 030212 general & internal medicine, Underweight, painoindeksi, 2. Zero hunger, General Neuroscience, aliravitsemus, elintarvikkeet, health, Public Health, Global Health, Social Medicine and Epidemiology, Diervoeding, 3142 Public health care science, environmental and occupational health, purl.org/pe-repo/ocde/ford#3.01.03 [https], Chinese adults, pooled analysis, medicine.symptom, Diet quality, B120 Physiology, Research Article, trends, purl.org/pe-repo/ocde/ford#1.06.03 [https], prevalence, Population, Mothers, Genetics and Molecular Biology, 3121 Internal medicine, medicine, Life Science, ddc:610, 3125 Otorhinolaryngology, ophthalmology, kehonkoostumus, Nutrition, Australian adults, General Immunology and Microbiology, purl.org/pe-repo/ocde/ford#3.01.04 [https], Ciências sociais, Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi, Malnutrition, Epidemiology and Global Health, sense organs, Estilos de Vida e Impacto na Saúde
Abstract: From 1985 to 2016, the prevalence of underweight decreased, and that of obesity and severe obesity increased, in most regions, with significant variation in the magnitude of these changes across regions. We investigated how much change in mean body mass index (BMI) explains changes in the prevalence of underweight, obesity, and severe obesity in different regions using data from 2896 population-based studies with 187 million participants. Changes in the prevalence of underweight and total obesity, and to a lesser extent severe obesity, are largely driven by shifts in the distribution of BMI, with smaller contributions from changes in the shape of the distribution. In East and Southeast Asia and sub-Saharan Africa, the underweight tail of the BMI distribution was left behind as the distribution shifted. There is a need for policies that address all forms of malnutrition by making healthy foods accessible and affordable, while restricting unhealthy foods through fiscal and regulatory restrictions., Wellcome Trust, Medical Research Council, peer-reviewed
Published: 2021
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133. Influence of content and particle size of waste pet bottles on concrete behavior at different w/c ratios

Author: Gutierrez, A [Universidad Central de Venezuela, Facultad de Ingenieria, Caracas (Venezuela, Bolivarian Republic of)]
Published: 2009
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134. Solitons and instantons in vacuum stability: physical phenomena

Author: Juan F. Marín, L. E. Guerrero, A. Bellorín, Salvador Jiménez, J. A. González, Luis Vázquez, Florida International University [Miami] (FIU), Universidad Central de Venezuela (UCV), Universidad Simon Bolivar (USB), Universidad Politécnica de Madrid (UPM), Universidad de Santiago de Chile [Santiago] (USACH), Universidad Complutense de Madrid = Complutense University of Madrid [Madrid] (UCM), and Guerrero, Luis Emilio
Subjects: Physics, High Energy Physics - Theory, Instanton, 010308 nuclear & particles physics, media_common.quotation_subject, FOS: Physical sciences, General Physics and Astronomy, Context (language use), 01 natural sciences, Asymmetry, Universe, String theory landscape, Theoretical physics, High Energy Physics - Theory (hep-th), Multiverse, [NLIN.NLIN-PS]Nonlinear Sciences [physics]/Pattern Formation and Solitons [nlin.PS], 0103 physical sciences, [NLIN.NLIN-PS] Nonlinear Sciences [physics]/Pattern Formation and Solitons [nlin.PS], Dark energy, [NLIN] Nonlinear Sciences [physics], [NLIN]Nonlinear Sciences [physics], 010306 general physics, False vacuum, media_common
Abstract: In a previous paper [JCAP06, 033 (2018)] we have proved that it is possible to have a stable false vacuum in a potential that is unbounded from below. In this paper we discuss the Physics related to our theoretical and numerical results. We show that the results of recent CERN experiments lead to the fact that our vacuum is safe. We present a new mechanism, where the space-time dimension plays an important role, that explains why our Universe is stable. We provide new evidence that supports a process for the origin of matter-antimatter asymmetry recently introduced by other scientists. We examine confinement in the context of escape problems. We discuss multiverse, string theory landscape, and extra-dimensions using our framework. Finally, we use our solutions to introduce some hypotheses about Dark Matter and Dark Energy., Published in Brazilian Journal of Physics, 2020
Published: 2020

135. Strain calculations of active tectonic blocks in northeastern Venezuela from GNSS analysis

Author: Franck A. Audemard M, Carlos Reinoza, François Jouanne, Lea Pousse-Beltran, Christian Beck, Centro de Investigacion Científica y de Educacion Superior de Ensenada, Fundación Venezolana de Investigaciones Sismológicas (FUNVISIS), FUNVISIS, Universidad Central de Venezuela (UCV), Institut des Sciences de la Terre (ISTerre), Institut national des sciences de l'Univers (INSU - CNRS)-Institut de recherche pour le développement [IRD] : UR219-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Gustave Eiffel-Université Grenoble Alpes (UGA), Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), and Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
Subjects: 010506 paleontology, geography, geography.geographical_feature_category, [SDU.STU]Sciences of the Universe [physics]/Earth Sciences, Geology, Angular velocity, Fault (geology), 010502 geochemistry & geophysics, Geodesy, 01 natural sciences, Plate tectonics, Tectonics, GNSS applications, Block (programming), Compression (geology), Rotation (mathematics), 0105 earth and related environmental sciences, Earth-Surface Processes
Abstract: International audience; We study translation, rotation, and strain of active tectonic blocks in Northeastern Venezuela from the Global Navigation Satellite System (GNSS) observations. Since the installation of the geodetic network in 2003, one of the goals was to place at least three observation sites at each tectonic block to study the deformation of each one. Based on this premise, we define at least seven blocks: Bergantín and Caripe blocks south of the El Pilar Fault (EPF), and Cariaco Gulf, Land bridge, Paria, North Peninsula, and Margarita Island blocks north of the EPF. Our preferred block modeling shows angular rotations from 0.02 to 0.29° Ma−1. It is known that the EPF concentrates the active deformation in this region of the Caribbean-South American plate boundary. However, the existent rotation could accommodate part of the motion. The strain rate tensors (SRT) indicate NW-SE compression and NE-SW extension for the western blocks. To the east, the 4-Land bridge block keeps the NW-SE compression but shows a decrease in the extensional component. The 5-Paria blocks show a complete inversion in the sense of semi-axis. Additionally, we evaluate the possibility of different motions in Margarita block calculating translational vector, rotational velocity, and strain from three GNSS sites at each side thereof. Our results show remarkable similarities for the Macanao Peninsula and Eastern Margarita Island, pointing to both belonging to a single block.
Published: 2020
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136. Matrix Formulas for Semilinear Backpropagation

Author: Crespin, Daniel, Facultad de Ciencias, Universidad Central de Venezuela, and Crespin, Daniel
Subjects: [INFO.INFO-AI] Computer Science [cs]/Artificial Intelligence [cs.AI], [INFO.INFO-LG]Computer Science [cs]/Machine Learning [cs.LG], Computer Science::Neural and Evolutionary Computation, [INFO.INFO-LG] Computer Science [cs]/Machine Learning [cs.LG], [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI]
Abstract: The present article is a direct continuation of, and should be read concurrently with, reference [1]. In that paper formulas were obtained for the gradient of the quadratic error of a general differentiable multilayer neural network defined over Hilbert spaces. The formulas belong to the class of backpropagation procedures that express the gradient in terms of the output errors and the transpose partial derivatives of the layers. Here we first develop a mathematical framework for semilinear perceptron neural networks using the natural correspondence between the transpose partial derivatives and the transpose partial Jacobians of the layers, such Jacobians being expressed in terms of the perceptron data as equations (11) and (14). The final gradient formulas for perceptron networks are presented as equations (16) and (17). Section §14 contains figures with captions to complement the discussion.
Published: 2020

137. Theory and Formulas for Backpropagation in Hilbert Spaces

Author: Crespin, Daniel, Facultad de Ciencias, Universidad Central de Venezuela, and Crespin, Daniel
Subjects: [INFO.INFO-AI] Computer Science [cs]/Artificial Intelligence [cs.AI], [INFO.INFO-AI]Computer Science [cs]/Artificial Intelligence [cs.AI]
Abstract: This paper provides a detailed proof of the backpropagation algorithm for single input data as stated in section 17, and for multiple input data as given in section 18. Our viewpoint is that backpropagation consists essentially in the calculation of the gradient of the quadratic error of a multilayer differentiable neural network having an architecture of Hilbert spaces. Along the way a general theory for such networks is outlined. The gradient is expressed, as expected, in terms of the error vectors and the transpose partial derivatives of the layers. Compare with [3] and note that all the present results apply without change to the case of Euclidean spaces (finite dimensional Hilbert spaces) hence to Cartesian spaces R^n as well. In Numerical Calculus/Analysis there is the well known gradient descent method, a procedure much used to find or approach the minimum of real valued functions. Beyond the calculation of a gradient, backpropagation is the name given to gradient descent when applied to the particularities of neural networks. The topic has a very long history as revealed in [6]. Although categories are not formally used, there is a section of Figures containing twelve diagrams that in the fashion of objects and morphisms illustrate neural networks, their values on inputs (forward propagation), their derivatives, transpose derivatives, backpropagated errors and lifted errors, these liftings being up to a numerical factor of 2 the components of the sought gradient of the quadratic error.
Published: 2020

138. Impact of industrially applied surface finishing processes on tribocorrosion performance of 316L stainless steel

Author: Stephania Kossman, Alex Montagne, Adrien Van Gorp, Marc Poorteman, Thierry Coorevits, Alain Iost, Mariana Staia, Alberto Mejias, Leonardo Bertolucci Coelho, Matthieu Touzin, Marie-Georges Olivier, Mechanics surfaces and materials processing (MSMP), Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), Université de Mons (UMons), Unité Matériaux et Transformations - UMR 8207 (UMET), Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centrale Lille Institut (CLIL), Universidad Central de Venezuela (UCV), HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM)-HESAM Université - Communauté d'universités et d'établissements Hautes écoles Sorbonne Arts et métiers université (HESAM), and Centrale Lille-Institut de Chimie du CNRS (INC)-Université de Lille-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)
Subjects: Materials science, Passivation, Tribocorrosion, Metallurgy, Alloy, 02 engineering and technology, Surfaces and Interfaces, Surface finish, [CHIM.MATE]Chemical Sciences/Material chemistry, engineering.material, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Surfaces, Coatings and Films, 020303 mechanical engineering & transports, 0203 mechanical engineering, Mechanics of Materials, Materials Chemistry, Lubrication, engineering, [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci], 0210 nano-technology, Contact area, Polarization (electrochemistry), Surface finishing
Abstract: International audience; This investigation addresses the effect provided by industrial surface finishes on the tribocorrosion properties of 316L stainless steel exposed to NaCl solution. Three distinct surface treatments were evaluated: passivation (SSO), electropolishing-passivation (SSEP) and micro-undulation (SSM mechano-chemical + electropolishing + passivation). For the tribocorrosion tests, a potentiostatic approach was considered in order to highlight the alloy behavior under two opposite situations, where repassivation of the surface would be thermodynamically possible or not (anodic or cathodic polarization, respectively). The outcomes demonstrated that the surface treatments were either harmful (SSEP) or beneficial (SSM) in terms of resulting tribocorrosion resistance. The specific topography of the micro-undulated sample decreased the real contact area and improved the surface lubrication in aqueous medium. SSEP presented the highest chemical wear and several factors seemed to have contributed for it, including the chemical, mechanical and structural properties of the passive film. Regardless the surface treatment, the tribocorrosion response was modified by the applied potential and more severe damage was determined under anodic polarization. At this potential, calculations of the total surface degradation suggested that volume loss was mainly dominated by chemical wear.
Published: 2020
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139. Friction Correction of Austenite Flow Stress Curves Determined under Axisymmetric Compression Conditions

Author: J.G. La Barbera-Sosa, Laurent Dubar, Philippe Moreau, J.D. Guérin, Eli S. Puchi-Cabrera, Mirentxu Dubar, J.C. Álvarez-Hostos, Universidad Central de Venezuela (UCV), Laboratoire d'Automatique, de Mécanique et d'Informatique industrielles et Humaines - UMR 8201 (LAMIH), and Centre National de la Recherche Scientifique (CNRS)-Université Polytechnique Hauts-de-France (UPHF)-INSA Institut National des Sciences Appliquées Hauts-de-France (INSA Hauts-De-France)
Subjects: Materials science, Matemáticas, Aerospace Engineering, INGENIERÍAS Y TECNOLOGÍAS, 02 engineering and technology, Flow stress, Mecánica Aplicada, 0203 mechanical engineering, Ingeniería de los Materiales, von Mises yield criterion, Galerkin method, Ingeniería Mecánica, FEM AND EFGM ANALYSIS, Mechanical Engineering, FRICTION CORRECTION, FRICTION COEFFICIENT, HOT-WORKING, Matemática Aplicada, Mechanics, Strain rate, [SPI.MECA]Engineering Sciences [physics]/Mechanics [physics.med-ph], 021001 nanoscience & nanotechnology, Compression (physics), Finite element method, 020303 mechanical engineering & transports, Mechanics of Materials, FRICTION FACTOR, Solid mechanics, STRUCTURAL STEELS, Deformation (engineering), 0210 nano-technology, CIENCIAS NATURALES Y EXACTAS
Abstract: The experimental flow stress curves of structural steels obtained from axisymmetric compression tests conducted under hot-working conditions very often include the frictional effects present at the tool/specimen interface. Such effects have a significant influence on the flow stress and therefore, should be corrected prior to any quantitative analysis aimed at determining the constitutive description of these materials. Commonly, such a correction is carried out by assuming a constant friction coefficient (μ) or friction factor (m) independent of deformation conditions, which is an unrealistic approach. The present investigation analyzes experimentally the frictional effects that occur when steel is deformed under axisymmetric compression conditions in the temperature range of 850 to 1200 °C at a strain rate of 0.1 s−1 and applied effective strains of 1, employing cylindrical samples with an initial diameter to initial height ratio (d0/h0) in the range of 0.5 to 2. Finite element modeling (FEM), as well as element-free Galerkin modeling (EFGM), have been employed for the analysis and prediction of the von Mises stress distribution, barreling and amount of metal folding undergone by the compression specimens. It has been shown that the increase in flow stress due to frictional effects can be corrected on the basis of either μ or m, by assuming that these parameters vary in the course of plastic deformation and are strongly dependent on deformation temperature. A novel procedure for the systematic correction of the flow stress curves, taking into consideration the changes in friction conditions during plastic deformation, has been proposed. Fil: Puchi-Cabrera, E. S.. Universite Des Sciences Et Technologies de Lille; Francia. Universidad Central de Venezuela; Venezuela Fil: Guérin, J. D.. Universite Des Sciences Et Technologies de Lille; Francia Fil: La Barbera-Sosa, J. G.. Universite Des Sciences Et Technologies de Lille; Francia. Universidad Central de Venezuela; Venezuela Fil: Álvarez Hostos, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Centro de Investigaciones en Métodos Computacionales. Universidad Nacional del Litoral. Centro de Investigaciones en Métodos Computacionales; Argentina Fil: Moreau, P.. Universite Des Sciences Et Technologies de Lille; Francia Fil: Dubar, M.. Universite Des Sciences Et Technologies de Lille; Francia Fil: Dubar, L.. Universite Des Sciences Et Technologies de Lille; Francia
Published: 2020
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140. Human Plasmodium vivax diversity, population structure and evolutionary origin

Author: Peter G. Kremsner, A. Berry, Ali Ould Mohamed Salem Boukary, Tamirat Gebru Woldearegai, Lise Musset, Eric Legrand, Benjamin Mordmüller, Franck Prugnolle, Carlo Severini, Jean-François Trape, François Renaud, Patrick Durand, Pingchai Harnyuttanakorn, Mohammad Shafiul Alam, Lilia González-Cerón, Khadijetou Mint Lekweiry, Beatriz Acuña Hidalgo, Dionicia Gamboa, François Nosten, Eric Elguero, Gustavo Fontecha, Virginie Rougeron, Oscar Noya, Céline Arnathau, Tepanata Pumpaibool, Sandrine Houzé, Sedigheh Zakeri, Rashidul Haque, Musab M. Ali Albsheer, Muzamil Mahdi Abdel Hamid, Health, Emergence, Adaptation and Transmission (MIVEGEC-HEAT), Processus Écologiques et Évolutifs au sein des Communautés (PEEC), Maladies infectieuses et vecteurs : écologie, génétique, évolution et contrôle (MIVEGEC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Maladies infectieuses et vecteurs : écologie, génétique, évolution et contrôle (MIVEGEC), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), AP-HP - Hôpital Bichat - Claude Bernard [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre de Physiopathologie Toulouse Purpan (CPTP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Service de Parasitologie et Mycologie [CHU Toulouse], Institut Fédératif de Biologie (IFB), Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Centre Hospitalier Universitaire de Toulouse (CHU Toulouse)-Pôle Biologie [CHU Toulouse], Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Malaria and Vector Research Group (MVRG), Institut Pasteur d'Iran, Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP), International Centre for Diarrhoeal Disease Research, Bangladesh (ICDDR,B), Centre for Tropical Medicine and Global Health [Oxford, UK], Nuffield Department of Medicine [Oxford, UK] (Big Data Institute), University of Oxford-University of Oxford, Shoklo Malaria Research Unit [Mae Sot, Thailand] (SMRU), Mahidol Oxford Tropical Medicine Research Unit (MORU), University of Oxford-Mahidol University [Bangkok]-Wellcome Trust-University of Oxford-Mahidol University [Bangkok]-Wellcome Trust, Dipartimento di Malattie infettive = Department of Infectious Diseases [Rome, Italie] (DMI), Istituto Superiore di Sanità (ISS), Institute for Tropical Medicine = Institut für Tropenmedizin, Reisemedizin, Humanparasitolgie [Tübingen, Allemagne] (ITM), Eberhard Karls Universität Tübingen = Eberhard Karls University of Tuebingen, German Center for Infectious Research - partner site Tübingen [Tübingen, Allemagne] (DZIF), College of Health and Medical Sciences [Harar, Ethiopie], Haramaya University (HU), Centro Regional de Investigación en Salud Pública = Regional Centre of Research in Public Health [Tapachula, Mexique] (CRISP), National Institute of Public Health = Instituto Nacional de Salud Pública [Cuernavaca, Mexique] (INSP), Microbiology Research Institute = Instituto de Investigaciones en Microbiología [Tegucigalpa, Honduras] (IIM), Universidad Nacional Autónoma de Honduras (UNAH), Instituto de Medicina Tropical 'Alexander von Humboldt' (IMT AvH), Universidad Peruana Cayetano Heredia (UPCH), Institut Pasteur de la Guyane, Réseau International des Instituts Pasteur (RIIP), Laboratoire de Parasitologie [Cayenne, Guyane française], Centre National de Référence du Paludisme [Cayenne, Guyane française] (CNR - laboratoire associé), Centre Collaborateur OMS pour la surveillance de la résistance aux antipaludiques [Cayenne, Guyane française] (CCOMS), Réseau International des Instituts Pasteur (RIIP)-Réseau International des Instituts Pasteur (RIIP)-Organisation Mondiale de la Santé / World Health Organization Office (OMS / WHO), Génétique du paludisme et résistance - Malaria Genetics and Resistance, Institut Pasteur [Paris] (IP), Centro para Estudios Sobre Malaria [Venezuela], Instituto de Altos Estudios en Salud Dr. Arnoldo Gabaldón, Instituto de Medicina Tropical [Caracas, Venezuela} (IMT), Universidad Central de Venezuela (UCV), Graduate School [Bangkok, Thailande], Chulalongkorn University [Bangkok], College of Public Health Science [Bangkok, Thailande], Department of Biology, Faculty of Science [Bangkok, Thailande], Faculté des Sciences et Techniques [Nouakchott, Mauritania], University of Khartoum, Vecteurs - Infections tropicales et méditerranéennes (VITROME), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut de Recherche Biomédicale des Armées [Brétigny-sur-Orge] (IRBA), Authors thank the ANR Tremplin EVAD 2017, IRD and CNRS-INEE., ANR-17-ERC3-0002,EVAD,Histoire évolutive et adaptation génétique de Plasmodium vivax(2017), Laboratoire MIVEGEC (Université de Montpellier-CNRS-IRD), CREES, Montpellier, France., Génétique et évolution des maladies infectieuses (GEMI), Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Génétique et évolution des maladies infectieuses (GEMI), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Istituto Superiore di Sanita [Rome], Centre National de Référence du Paludisme [Cayenne, Guyane française] (CNR), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut de Recherche Biomédicale des Armées (IRBA), Legrand, Eric, Histoire évolutive et adaptation génétique de Plasmodium vivax - - EVAD2017 - ANR-17-ERC3-0002 - TERC - VALID, Service de Parasitologie et Mycologie, Institut Fédératif de Biologie (IFB) - Hôpital Purpan, Hôpital Purpan [Toulouse], CHU Toulouse [Toulouse]-CHU Toulouse [Toulouse]-Hôpital Purpan [Toulouse], CHU Toulouse [Toulouse]-CHU Toulouse [Toulouse], University of Oxford [Oxford]-University of Oxford [Oxford], Wellcome Trust-Mahidol University [Bangkok]-University of Oxford [Oxford]-Wellcome Trust-Mahidol University [Bangkok]-University of Oxford [Oxford], and Institut Pasteur [Paris]
Subjects: Evolutionary Genetics, 0301 basic medicine, Plasmodium, MESH: Plasmodium vivax / isolation & purification, Genotyping Techniques, Population genetics, [SDV]Life Sciences [q-bio], RC955-962, Plasmodium vivax, MESH: Global Health, Global Health, Microsatellite Loci, Geographical Locations, MESH: Genotype, 0302 clinical medicine, Arctic medicine. Tropical medicine, Global health, MESH: Genetic Variation, MESH: Plasmodium vivax / genetics, Species diversity, education.field_of_study, Ecology, biology, MESH: Plasmodium vivax / classification, 3. Good health, Infectious Diseases, Parasite evolution, Public aspects of medicine, RA1-1270, [SDV.MP.PAR] Life Sciences [q-bio]/Microbiology and Parasitology/Parasitology, purl.org/pe-repo/ocde/ford#3.03.06 [https], Research Article, Microsatellite loci, Asia, Genotype, Ecological Metrics, 030231 tropical medicine, Population, MESH: Malaria, Vivax / parasitology, Evolutionary genetics, 03 medical and health sciences, Gene Types, MESH: Genotyping Techniques, Parasite Groups, parasitic diseases, Malaria, Vivax, Genetics, medicine, Humans, [SDV.MP.PAR]Life Sciences [q-bio]/Microbiology and Parasitology/Parasitology, Parasite Evolution, education, Evolutionary Biology, MESH: Humans, Population Biology, Human evolutionary genetics, Ecology and Environmental Sciences, Public Health, Environmental and Occupational Health, Genetic Variation, Biology and Life Sciences, Species Diversity, Plasmodium falciparum, biology.organism_classification, medicine.disease, 030104 developmental biology, Evolutionary biology, People and Places, Africa, Parasitology, Apicomplexa, Population Genetics, Malaria
Abstract: More than 200 million malaria clinical cases are reported each year due to Plasmodium vivax, the most widespread Plasmodium species in the world. This species has been neglected and understudied for a long time, due to its lower mortality in comparison with Plasmodium falciparum. A renewed interest has emerged in the past decade with the discovery of antimalarial drug resistance and of severe and even fatal human cases. Nonetheless, today there are still significant gaps in our understanding of the population genetics and evolutionary history of P. vivax, particularly because of a lack of genetic data from Africa. To address these gaps, we genotyped 14 microsatellite loci in 834 samples obtained from 28 locations in 20 countries from around the world. We discuss the worldwide population genetic structure and diversity and the evolutionary origin of P. vivax in the world and its introduction into the Americas. This study demonstrates the importance of conducting genome-wide analyses of P. vivax in order to unravel its complex evolutionary history., Author summary Among the five Plasmodium species infecting humans, P. vivax is the most prevalent parasite outside Africa. To date, there has been less research on this species than for Plasmodium falciparum, a more lethal species, principally because of the lack of an in vitro culture system and also because P. vivax is considered relatively benign. Nevertheless, P. vivax is responsible for severe and incapacitating clinical symptoms with significant effects on human health. The emergence of new drug resistance and the discovery of severe and even fatal cases due to P. vivax question the benign status of P. vivax malaria. In recent years, there has been increased interest in characterizing the distribution of genetic variation in P. vivax. However, these studies either generated genetic information from a regional geographic scale or combine genetic datasets generated in different molecular platforms, which is known to generate biased results. In this study, we used a single genotyping platform to genotype 14 microsatellite markers in 834 samples of P. vivax obtained from 28 locations in 20 countries from around the world, including several populations from East and West Africa. We discuss the worldwide population genetic structure and the evolutionary origins of P. vivax, as well as its introduction into the Americas.
Published: 2020
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141. GESTIÓN DE LA DIVULGACIÓN DE CONOCIMIENTOS: UNIVERSIDAD Y REVISTAS ESPECIALIZADAS EN VENEZUELA

Author: Carlos Eduardo Blanco, Gilberto Graffe, and Doctorado en Educación. Universidad Central de Venezuela.
Subjects: Educación Superior, Comunicación Científica, Revistas Especializadas, lcsh:A, lcsh:General Works
Abstract: En Latinoamérica las revistas especializadas prestan un invalorable servicio social que implica a editores, autores, autoridades universitarias, estatales, entre otros. En la región, tales importantes publicaciones son producidas en la mayoría de los casos en las instituciones universitarias estatales. Esto hace al tema central de este artículo un asunto tanto social como de la educación superior. Este ensayo tuvo como objetivo analizar aspectos de la gestión de dichas revistas, con énfasis en la Venezuela reciente. Se presentan datos cualitativos primarios y secundarios acerca de la relación entre la gestión universitaria y las revistas, específicamente para el contexto actual de dicho país. Se concluye que la situación de las revistas especializadas venezolanas es actualmente bastante difícil, llena de retos que debe enfrentar y superar la gerencia de la educación superior. PALABRAS CLAVE: Revistas; Universidades; Educación; Venezuela. THE MANAGEMENT OF KNOWLEDGE DISSEMINATION: UNIVERSITIES AND RESEARCH JOURNALS IN VENEZUELA ABSTRACT In Latin America research journals are organizations which provide an invaluable social service that involves editors, authors, university and state authorities, among others. In the region, these important publications are in the majority of cases edited by state universities. For this reason, the central topic of this article is not only a social one but one closely related to higher education. This essay analyzes aspects of the management of research journals edited in our universities, with emphasis on the Venezuela of recent times. Some qualitative primary and secondary data is presented with specific regard to the context of this country. It is concluded that the current state of affairs of journals in this country is highly difficult, full of challenges that the management of higher education institutions must face and overcome. KEYWORDS: Journals; Universities; Education; Venezuela.
Published: 2020

142. Evidence of selective asphaltene subfraction adsorption on SiO 2 nanoparticles studied by UV-vis absorbance and fluorescence spectroscopy

Author: Genesis Gonzalez, Jimmy Castillo, Brice Bouyssiere, Wladimir Ruiz, Vicmary Vargas, Universidad Central de Venezuela (UCV), Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux (IPREM), and Université de Pau et des Pays de l'Adour (UPPA)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Subjects: fluorescence asphaltenes, Polymers and Plastics, Chemistry, Uv vis absorbance, Nanoparticle, 02 engineering and technology, 021001 nanoscience & nanotechnology, Photochemistry, Fluorescence spectroscopy, Surfaces, Coatings and Films, Absorbance, nanoparticle adsorption, Adsorption, 020401 chemical engineering, 13. Climate action, [CHIM.ANAL]Chemical Sciences/Analytical chemistry, Sio2 nanoparticles, Asphaltene adsorption, [CHIM]Chemical Sciences, 0204 chemical engineering, Physical and Theoretical Chemistry, 0210 nano-technology, Asphaltene
Abstract: International audience; The study of asphaltene adsorption onto nanoparticles is an area of great interest due to its ability to mitigate problems caused by asphaltenes in the oil industry. In this work, UV-vis absorbance and fluorescence spectroscopy were used to study asphaltene adsorption onto silica nanoparticles prepared from rice husk ash. The adsorption process followed a Dubinin-Radushkevich adsorption behavior, which suggested a progressive adsorption of larger aggregates onto the nanoparticles. From the Gaussian decomposition of the fluorescence emission spectra, it was determined that species of high molecular weight were preferentially adsorbed on the nanoparticles. These results have both academic and industrial importance since they help to propose more suitable thermodynamic models and methodologies to mitigate the issues related to adsorption and deposition of asphaltenes on surfaces.
Published: 2020
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143. The Quantum Captivity of Physics

Author: Crespin, Daniel, Crespin, Daniel, and Facultad de Ciencias, Universidad Central de Venezuela
Subjects: [PHYS.QPHY]Physics [physics]/Quantum Physics [quant-ph], Physics::Atomic Physics, [PHYS.QPHY] Physics [physics]/Quantum Physics [quant-ph]
Abstract: The present paper highlights the inconsistencies of the quantum model of the hydrogen atom and describes an alternative natural deterministic model.
Published: 2020
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144. Adaptive density estimation on bounded domains under mixing conditions

Author: Nicolas Klutchnikoff, Clémentine Prieur, Karine Bertin, José R. León, Centro de Investigación y Modelamiento de Fenómenos Aleatorios – Valparaíso (CIMFAV), Universidad de Valparaiso [Chile], Institut de Recherche Mathématique de Rennes (IRMAR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-École normale supérieure - Rennes (ENS Rennes)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-INSTITUT AGRO Agrocampus Ouest, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Universidad Central de Venezuela (UCV), Mathematics and computing applied to oceanic and atmospheric flows (AIRSEA), Inria Grenoble - Rhône-Alpes, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria)-Université Grenoble Alpes (UGA)-Laboratoire Jean Kuntzmann (LJK), Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA)-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), ANR-11-LABX-0020,LEBESGUE,Centre de Mathématiques Henri Lebesgue : fondements, interactions, applications et Formation(2011), AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Université de Rennes 2 (UR2), Université de Rennes (UNIV-RENNES)-École normale supérieure - Rennes (ENS Rennes)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), and Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)
Subjects: Statistics and Probability, Multivariate statistics, Goldenshluger-Lepski method, adaptive estimation, 01 natural sciences, 010104 statistics & probability, mixing stochastic processes, [MATH.MATH-ST]Mathematics [math]/Statistics [math.ST], 0502 economics and business, 62G07, Applied mathematics, oracle-type inequalities, 0101 mathematics, 050205 econometrics, Mathematics, 05 social sciences, Bandwidth (signal processing), Estimator, Density estimation, MSC 2010 subject classifications: Primary 62G05, 62G07, 60K35, multivariate analysis, 60K35, Simulated data, Bounded function, Adaptive estimator, Compact supported density estimation, Hypercube, Statistics, Probability and Uncertainty, 60G10
Abstract: In this article, we propose a new adaptive estimator for multivariate density functions defined on a bounded domain in the framework of multivariate mixing processes. Several procedures have been proposed in the literature to tackle the boundary bias issue encountered using classical kernel estimators. Most of them are designed to work in dimension $d=1$ or on the unit $d$-dimensional hypercube. We extend such results to more general bounded domains such as simple polygons or regular domains that satisfy a rolling condition. We introduce a specific family of kernel-type estimators devoid of boundary bias. We then propose a data-driven Goldenshluger and Lepski type procedure to jointly select a kernel and a bandwidth. We prove the optimality of our procedure in the adaptive framework, stating an oracle-type inequality. We illustrate the good behavior of our new class of estimators on simulated data. Finally, we apply our procedure to a real dataset.
Published: 2020
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145. Compactification and Fluxes: An AdS{sub 4} Example

Author: Font, Anamaria [Departamento de Fisica, Facultad de Ciencias, Universidad Central de Venezuela A.P. 20513, Caracas 1020-A (Venezuela)]
Published: 2008
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146. Invariants from classical field theory

Author: Leal, Lorenzo [Centro de Fisica Teorica y Computacional, Universidad Central de Venezuela, Caracas 1041-A (Venezuela)]
Published: 2008
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147. Thermo-optical Properties of Nanofluids

Author: Fernandez, Alberto [Facultad de Ciencias, Escuela de Quimica, Universidad Central de Venezuela (Venezuela)]
Published: 2008
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148. Dose Calculation Evolution for Internal Organ Irradiation in Humans

Author: Jimenez V, Reina [Universidad Central de Venezuela, Hospital Domingo Luciani, IVSS, Caracas, 1070 (Venezuela)]
Published: 2007
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149. X-ray Spectroscopy for Quality Control of Chemotherapy Drugs

Author: Angeli-Greaves, M [Universidad Central de Venezuela, Apartado 90373 Caracas 1083A (Venezuela)]
Published: 2007
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150. Duality symmetries in Calabi-Yau compactifications

Author: Font, A [Departamento de Fisica, Facultad de Ciencias, Universidad Central de Venezuela, A.P. 20513, Caracas 1020-A (Venezuela)]
Published: 1992

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