Search

Your search keyword '"Huerta, J."' showing total 1,082 results
Start Over Author "Huerta, J."
1,082 results on '"Huerta, J."'

1. A Multivariate Space-Time Dynamic Model for Characterizing the Atmospheric Impacts Following the Mt Pinatubo Eruptio

Author

Garrett, Robert, Shand, Lyndsay, and Huerta, J. Gabriel

Subjects
Statistics - Applications
Abstract

The June 1991 Mt. Pinatubo eruption resulted in a massive increase of sulfate aerosols in the atmosphere, absorbing radiation and leading to global changes in surface and stratospheric temperatures. A volcanic eruption of this magnitude serves as a natural analog for stratospheric aerosol injection, a proposed solar radiation modification method to combat the warming climate. The impacts of such an event are multifaceted and region-specific. Our goal is to characterize the multivariate and dynamic nature of the climate impacts following the Mt. Pinatubo eruption. We developed a multivariate space-time dynamic linear model to understand the full extent of the spatially- and temporally-varying impacts. Specifically, spatial variation is modeled using a flexible set of basis functions for which the basis coefficients are allowed to vary in time through a vector autoregressive (VAR) structure. This novel model is caste in a Dynamic Linear Model (DLM) framework and estimated via a customized MCMC approach. We demonstrate how the model quantifies the relationships between key atmospheric parameters following the Mt. Pinatubo eruption with reanalysis data from MERRA-2 and highlight when such model is advantageous over univariate models.

Published
2024

3. Nuclear Techniques in Floating Artifacts in Peru, Latin America, and the World

Author

Mantari, J. L., Montoya, M., Saldarriaga, M., Huerta, J., Castro, J. L., Zúñiga, A., Ramos, J., Xiros, Nikolas I., Series Editor, Carral, Luis, editor, Vega, Adán, editor, Carreño, Jorge, editor, de Lara, José, editor, Lamas, María Isabel, editor, Cartelle, Juan José, editor, Tarrío, Javier, editor, Carballo, Rodrigo, editor, and Townsed, Patrick, editor

Published
2024
Full Text
View/download PDF

4. Analysis of HDPE Configurations Reinforced with Fiberglass as Hull Material for Artisanal Fishing Vessels

Author

Chino, I., Ramírez, J., Bonifacio, D., Mantari, J. L., Huerta, J., Ramos, N., Charca, S., Molina, A., Xiros, Nikolas I., Series Editor, Carral, Luis, editor, Vega, Adán, editor, Carreño, Jorge, editor, de Lara, José, editor, Lamas, María Isabel, editor, Cartelle, Juan José, editor, Tarrío, Javier, editor, Carballo, Rodrigo, editor, and Townsed, Patrick, editor

Published
2024
Full Text
View/download PDF

5. Methodological Design of a Longline Fishing Vessel

Author

Mantari, J. L., Ramírez, J., Huerta, J., Chino, I., Terán, A., Chambizea, L., Laura, J., Velásquez, W., Xiros, Nikolas I., Series Editor, Carral, Luis, editor, Vega, Adán, editor, Carreño, Jorge, editor, de Lara, José, editor, Lamas, María Isabel, editor, Cartelle, Juan José, editor, Tarrío, Javier, editor, Carballo, Rodrigo, editor, and Townsed, Patrick, editor

Published
2024
Full Text
View/download PDF

6. Structural and Hydrodynamic Evaluation of a Fishing Vessel Made of HDPE

Author

Ramírez, J., Huerta, J., Mantari, J. L., Terán, A., Laura, J., Velásquez, W., Xiros, Nikolas I., Series Editor, Carral, Luis, editor, Vega, Adán, editor, Carreño, Jorge, editor, de Lara, José, editor, Lamas, María Isabel, editor, Cartelle, Juan José, editor, Tarrío, Javier, editor, Carballo, Rodrigo, editor, and Townsed, Patrick, editor

Published
2024
Full Text
View/download PDF

7. Computational Analysis of a HDPE Fishing Vessel with a Novel Design

Author

Panduro, R. M., Mantari, J. L., Ramirez, J., Huerta, J., Laura, J., Velásquez, W., Xiros, Nikolas I., Series Editor, Carral, Luis, editor, Vega, Adán, editor, Carreño, Jorge, editor, de Lara, José, editor, Lamas, María Isabel, editor, Cartelle, Juan José, editor, Tarrío, Javier, editor, Carballo, Rodrigo, editor, and Townsed, Patrick, editor

Published
2024
Full Text
View/download PDF

17. Have there been changes in the application of mechanical ventilation in relation to scientific evidence? A multicenter observational study in Mexico

Author

Aguilera Almazán, F., Benítez Cortázar, M., Carrillo Speare, R., Castaño, R., Corral, R., D’Ector Lira, D.N., Díaz Polanco, G., Elizalde, J.J., Envila Fisher, R., Franco, G., García Balbuena, P., Gayoso Cruz, O., Green, L., Herrera Hoyos, J.O., Hinojosa, J., Huerta, J., Juárez, V.A., Loera, M., López Alzate, C., López Mora, E., Martínez Caro, S., Méndez Reyes, R., Mendoza, M., Narváez Porras, O., Ortiz, E., Padua, A., Poblano, M., Pureco Reyes, V., Querevalum, W., Quesada, A., Ramírez Rivera, A., Tamariz, A., Vargas, A., Vázquez, C., Cerda, P., Mercado, R., Albe Castañón, J., Villagómez Ortiz, A.J., Cruz Lozano, C., Maycotte Luna, Z., López Bacal, F., Cueto Robledo, G., Treviño Salinas, M.A., Martínez Zubieta, R., Olvera-Guzmán, C., Montes de Oca, Marco, Ñamendys-Silva, S.A., Martínez Cano, J.S., Baltazar Torres, J.A., Morales Muñoz, G., Villa Delgado, A., Ladape Martínez, J., Ortega Pérez, A., Chávez Morales, A., García Luna, A., Rugiero Cabrera, A., Rugerio Cabrera, A., Pérez-Calatayud, Á.A., Arellano, A., Velasco Gutiérrez, A., Longino Gómez, A.J., Tamariz Becerra Álvarez Calderón, Antonio, Álvarez Calderón Christus Mugerza, R., Reynoso Estrella, C.I., Déctor-Lira Espindola-Cruz, D., Gutiérrez-Zárate, D., Esmeralda, D., Anica Malagón, E.D., Monares Zepeda, E., Deloya, E., Manzo Palacios, E., de Jesús Montelongo, F., Flores Mejía, F.J., Ramírez Cervantes, M., Camarena Alejo, G., Vázquez de Anda, G., Vázquez, H., Larios Luna, C., Zamora, S.E., Magaña Solano, G., Sánchez González, J.I., Rosendo Sánchez Medina, J., Zaragoza, J.J., Buensuseso Alfaro, J.A., Dávila Fernández, J.C., Mijangos-Méndez, J.C., Martínez Medina, M., Chacón Gómez, M., Calyeca Sánchez, M.V., Martínez Soria, J.J., García Graullera, R.J., Rosas, R., Sanjuana Gómez Flores, S., Reyes Inurrigarro, S., Ñamendy-Silva, S.A., Sánchez Hurtado, L.A., Villegas Castellanos, L.L., Zalatiel Maycotte, L., Estrada Gutiérrez, A., León, M.A., Marín, M.C., Elizalde, J., Villagómez, A., Cerón, U., Palma-Lara, I., Sánchez, J.R., Monares, E., Muriel, A., Peñuelas, Ó., Frutos-Vivar, F., and Esteban, A.

Published
2020
Full Text
View/download PDF

18. ¿Se han producido cambios en la aplicación de la ventilación mecánica en relación con la evidencia científica? Estudio multicéntrico en México

Author

Aguilera Almazán, F., Benítez Cortázar, M., Carrillo Speare, R., Castaño, R., Corral, R., D́Ector Lira, D.N., Díaz Polanco, G., Elizalde, J.J., Envila Fisher, R., Franco, G., García Balbuena, P., Gayoso Cruz, O., Green, L., Herrera Hoyos, J.O., Hinojosa, J., Huerta, J., Juárez, V.A., Loera, M., López Alzate, C., López Mora, E., Martínez Caro, S., Méndez Reyes, R., Mendoza, M., Narváez Porras, O., Ortiz, E., Padua, A., Poblano, M., Pureco Reyes, V., Querevalum, W., Quesada, A., Ramírez Rivera, A., Tamariz, A., Vargas, A., Vázquez, C., Cerda, P., Mercado, R., Albe Castañón, J., Villagómez Ortiz, A.J., Cruz Lozano, C., Maycotte Luna, Z., López Bacal, F., Cueto Robledo, G., Treviño Salinas, M.A., Martínez Zubieta, R., Olvera-Guzmán, C., Montes de Oca, Marco, Ñamendys-Silva, S.A., Martínez Cano, J.S., Baltazar Torres, J.A., Morales Muñoz, G., Villa Delgado, A., Ladape Martínez, J., Ortega Pérez, A., Chávez Morales, A., García Luna, A., Rugiero Cabrera, A., Rugerio Cabrera, A., Pérez-Calatayud, Á.A., Arellano, A., Velasco Gutiérrez, A., Longino Gómez, A.J., Tamariz Becerra Álvarez Calderón, Antonio, Álvarez Calderón Christus Mugerza, R., Reynoso Estrella, C.I., Déctor-Lira Espindola-Cruz, D., Gutiérrez-Zárate, D., Esmeralda, D., Anica Malagón, E.D., Monares Zepeda, E., Deloya, E., Manzo Palacios, E., de Jesús Montelongo, F., Flores Mejía, F.J., Ramírez Cervantes, M., Camarena Alejo, G., Vázquez de Anda, G., Vázquez, H., Larios Luna, C., Zamora, S.E., Magaña Solano, G., Sánchez González, J.I., Rosendo Sánchez Medina, J., Zaragoza, J.J., Buensuseso Alfaro, J.A., Dávila Fernández, J.C., Mijangos-Méndez, J.C., Martínez Medina, M., Chacón Gómez, M., Calyeca Sánchez, M.V., Martínez Soria, J.J., García Graullera, R.J., Rosas, R., Sanjuana Gómez Flores, S., Reyes Inurrigarro, S., Ñamendy-Silva, S.A., Sánchez Hurtado, L.A., Villegas Castellanos, L.L., Zalatiel Maycotte, L., Estrada Gutiérrez, A., León, M.A., Marín, M.C., Elizalde, J., Villagómez, A., Cerón, U., Palma-Lara, I., Sánchez, J.R., Monares, E., Muriel, A., Peñuelas, Ó., Frutos-Vivar, F., and Esteban, A.

Published
2020
Full Text
View/download PDF

22. Changes in Lifestyle and Risk of Colorectal Cancer in the European Prospective Investigation Into Cancer and Nutrition

Author

Botteri, E, Peveri, G, Berstad, P, Bagnardi, V, Chen, S, Sandanger, T, Hoff, G, Dahm, C, Antoniussen, C, Tjonneland, A, Eriksen, A, Skeie, G, Perez-Cornago, A, Huerta, J, Jakszyn, P, Harlid, S, Sundstrom, B, Barricarte, A, Monninkhof, E, Derksen, J, Schulze, M, Bueno-De-Mesquita, B, Sanchez, M, Cross, A, Tsilidis, K, De Magistris, M, Kaaks, R, Katzke, V, Rothwell, J, Laouali, N, Severi, G, Amiano, P, Contiero, P, Sacerdote, C, Goldberg, M, Touvier, M, Freisling, H, Viallon, V, Weiderpass, E, Riboli, E, Gunter, M, Jenab, M, Ferrari, P, Botteri E., Peveri G., Berstad P., Bagnardi V., Chen S. L. F., Sandanger T. M., Hoff G., Dahm C. C., Antoniussen C. S., Tjonneland A., Eriksen A. K., Skeie G., Perez-Cornago A., Huerta J. M., Jakszyn P., Harlid S., Sundstrom B., Barricarte A., Monninkhof E. M., Derksen J. W. G., Schulze M. B., Bueno-De-Mesquita B., Sanchez M. -J., Cross A. J., Tsilidis K. K., De Magistris M. S., Kaaks R., Katzke V., Rothwell J. A., Laouali N., Severi G., Amiano P., Contiero P., Sacerdote C., Goldberg M., Touvier M., Freisling H., Viallon V., Weiderpass E., Riboli E., Gunter M. J., Jenab M., Ferrari P., Botteri, E, Peveri, G, Berstad, P, Bagnardi, V, Chen, S, Sandanger, T, Hoff, G, Dahm, C, Antoniussen, C, Tjonneland, A, Eriksen, A, Skeie, G, Perez-Cornago, A, Huerta, J, Jakszyn, P, Harlid, S, Sundstrom, B, Barricarte, A, Monninkhof, E, Derksen, J, Schulze, M, Bueno-De-Mesquita, B, Sanchez, M, Cross, A, Tsilidis, K, De Magistris, M, Kaaks, R, Katzke, V, Rothwell, J, Laouali, N, Severi, G, Amiano, P, Contiero, P, Sacerdote, C, Goldberg, M, Touvier, M, Freisling, H, Viallon, V, Weiderpass, E, Riboli, E, Gunter, M, Jenab, M, Ferrari, P, Botteri E., Peveri G., Berstad P., Bagnardi V., Chen S. L. F., Sandanger T. M., Hoff G., Dahm C. C., Antoniussen C. S., Tjonneland A., Eriksen A. K., Skeie G., Perez-Cornago A., Huerta J. M., Jakszyn P., Harlid S., Sundstrom B., Barricarte A., Monninkhof E. M., Derksen J. W. G., Schulze M. B., Bueno-De-Mesquita B., Sanchez M. -J., Cross A. J., Tsilidis K. K., De Magistris M. S., Kaaks R., Katzke V., Rothwell J. A., Laouali N., Severi G., Amiano P., Contiero P., Sacerdote C., Goldberg M., Touvier M., Freisling H., Viallon V., Weiderpass E., Riboli E., Gunter M. J., Jenab M., and Ferrari P.

Abstract

Introduction: We investigated the impact of changes in lifestyle habits on colorectal cancer (CRC) risk in a multicountry European cohort. Methods: We used baseline and follow-up questionnaire data from the European Prospective Investigation into Cancer cohort to assess changes in lifestyle habits and their associations with CRC development. We calculated a healthy lifestyle index (HLI) score based on smoking status, alcohol consumption, body mass index, and physical activity collected at the 2 time points. HLI ranged from 0 (most unfavorable) to 16 (most favorable). We estimated the association between HLI changes and CRC risk using Cox regression models and reported hazard ratios (HR) with 95% confidence intervals (CI). Results: Among 295,865 participants, 2,799 CRC cases were observed over a median of 7.8 years. The median time between questionnaires was 5.7 years. Each unit increase in HLI from the baseline to the follow-up assessment was associated with a statistically significant 3% lower CRC risk. Among participants in the top tertile at baseline (HLI > 11), those in the bottom tertile at follow-up (HLI ≤ 9) had a higher CRC risk (HR 1.34; 95% CI 1.02-1.75) than those remaining in the top tertile. Among individuals in the bottom tertile at baseline, those in the top tertile at follow-up had a lower risk (HR 0.77; 95% CI 0.59-1.00) than those remaining in the bottom tertile. Discussion: Improving adherence to a healthy lifestyle was inversely associated with CRC risk, while worsening adherence was positively associated with CRC risk. These results justify and support recommendations for healthy lifestyle changes and healthy lifestyle maintenance for CRC prevention.

Published
2023

23. Macroscopic optical response and photonic bands

Author

Perez-Huerta, J. S., Ortiz, Guillermo P., Mendoza, Bernardo S., and Mochan, W. Luis

Subjects
Physics - Optics
Abstract

We develop a formalism for the calculation of the macroscopic dielectric response of composite systems made of particles of one material embedded periodically within a matrix of another material, each of which is characterized by a well defined dielectric function. The nature of these dielectric functions is arbitrary, and could correspond to dielectric or conducting, transparent or opaque, absorptive and dispersive materials. The geometry of the particles and the Bravais lattice of the composite are also arbitrary. Our formalism goes beyond the longwavelenght approximation as it fully incorporates retardation effects. We test our formalism through the study the propagation of electromagnetic waves in 2D photonic crystals made of periodic arrays of cylindrical holes in a dispersionless dielectric host. Our macroscopic theory yields a spatially dispersive macroscopic response which allows the calculation of the full photonic band structure of the system, as well as the characterization of its normal modes, upon substitution into the macroscopic field equations. We account approximately for the spatial dispersion through a local magnetic permeability and we analyze the resulting dispersion relation, obtaining a region of left-handedness., Comment: 17 pages, 8 figures

Published
2012
Full Text
View/download PDF

24. G2and the rolling ball

Author

Baez, JC and Huerta, J

Subjects
General Mathematics, Pure Mathematics, Applied Mathematics
Abstract

Understanding the exceptional Lie groups as the symmetry groups of simpler objects is a long-standing program in mathematics. Here, we explore one famous realization of the smallest exceptional Lie group, G2.Its Lie algebra g2acts locally as the symmetries of a ball rolling on a larger ball, but only when the ratio of radii is 1:3. Using the split octonions, we devise a similar, but more global, picture of G2:it acts as the symmetries of a ‘spinorial ball rolling on a projective plane’, again when the ratio of radii is 1:3. We explain this ratio in simple terms, use the dot product and cross product of split octonions to describe the G2incidence geometry, and show how a form of geometric quantization applied to this geometry lets us recover the imaginary split octonions and these operations.

Published
2014

25. Inverse prediction of PuO2 processing conditions using Bayesian seemingly unrelated regression with functional data.

Author

McCombs, Audrey Lamson, Stricklin, Madeline Anne, Goode, Katherine, Huerta, J. Gabriel, Shuler, Kurtis, Tucker, J. Derek, Adah Zhang, Sweet, Lucas, and Ries, Daniel

Subjects
RADIOACTIVE substances, FORECASTING, NITRIC acid, NUCLEAR engineering, MATERIALS analysis
Abstract

Over the past decade, a variety of innovative methodologies have been developed to better characterize the relationships between processing conditions and the physical, morphological, and chemical features of special nuclear material (SNM). Different processing conditions generate SNM products with different features, which are known as "signatures" because they are indicative of the processing conditions used to produce the material. These signatures can potentially allow a forensic analyst to determine which processes were used to produce the SNM and make inferences about where the material originated. This article investigates a statistical technique for relating processing conditions to themorphological features of PuO2 particles. We develop a Bayesian implementation of seemingly unrelated regression (SUR) to inverse-predict unknown PuO2 processing conditions from known PuO2 features. Model results from simulated data demonstrate the usefulness of the technique. Applied to empirical data from a bench-scale experiment specifically designed with inverse prediction in mind, our model successfully predicts nitric acid concentration, while results for Pu concentration and precipitation temperature were equivalent to a simple mean model. Our technique compliments other recent methodologies developed for forensic analysis of nuclear material and can be generalized across the field of chemometrics for application to other materials. [ABSTRACT FROM AUTHOR]

Published
2024
Full Text
View/download PDF

27. Safety and feasibility of transradial access for percutaneous coronary intervention in chronic total occlusions

Author

Diego-Nieto A, Nunez J, Minana G, Amat-Santos I, Salinas-Sanguino P, Mohande M, Regueiro A, Pan M, Lacunza J, Caballero-Borrego J, Antonio Fernandez-Diaz J, Cisnal A, Santos-Martinez S, Gonzalo N, Vaquerizo B, Rivero F, Jurado-Roman A, Abellan-Huerta J, Gonzalez E, Rondan-Murillo J, Benito M, Burgo J, Mazuecos J, Ojeda F, Moreno-Ambroj C, Sabate M, Ojeda S, Aguilar R, Perez M, Sanchis J, Campo-Prieto A, Escaned J, Goicolea J, and Martin-Moreiras J

Subjects
General Medicine
Abstract

INTRODUCTION AND OBJECTIVES: Transfemoral access is the most frequently used vascular approach in chronic total occlusion percutaneous coronary interventions (CTO-PCI). The aim of this study was to evaluate the safety and feasibility of a transradial access CTO-PCI program and its impact on angiographic and clinical results and length of hospital stay.; METHODS: Retrospective multicenter cohort study including 2550 consecutive CTO-PCI procedures included in a multicenter registry with accurate information on vascular access. A total of 896 procedures were performed as radial-only access while 1654 were performed through at least 1 femoral puncture. Clinical and angiographic data were collected.; RESULTS: The mean age was 66.3 ± 11.4 years. The mean Japan-chronic total occlusion score (2.7 ± 0.3) was similar in the 2 groups. Successful revascularization was achieved in 2009 (79.6%) cases, 78.2% and 82.1% in the femoral and radial access cohorts, respectively (P = .002). Periprocedural in-hospital complications were observed in 5.1% and 2.3% (P = .02), with fewer access site-dependant vascular complications in the transradial cohort (2.3% vs 0.2%; P = .009). The mean length of hospital stay was significantly shorter in the transradial access group (0.89 ± 1.4 vs 2.2 ± 3.2 days, P < .001).; CONCLUSION: A transradial program for CTO-PCI is safe and effective in most CTO lesions. The transradial strategy has fewer vascular complications and shorter length of hospital stay without compromising the success rate. Copyright © 2022. Published by Elsevier Espana, S.L.U.

Published
2023
Full Text
View/download PDF

32. An invitation to higher gauge theory

Author

Baez, JC and Huerta, J

Subjects
Nuclear & Particles Physics, Mathematical Physics, Quantum Physics, Astronomical and Space Sciences
Abstract

In this easy introduction to higher gauge theory, we describe parallel transport for particles and strings in terms of 2-connections on 2-bundles. Just as ordinary gauge theory involves a gauge group, this generalization involves a gauge '2-group'. We focus on 6 examples. First, every abelian Lie group gives a Lie 2-group; the case of U(1) yields the theory of U(1) gerbes, which play an important role in string theory and multisymplectic geometry. Second, every group representation gives a Lie 2-group; the representation of the Lorentz group on 4d Minkowski spacetime gives the Poincaré 2-group, which leads to a spin foam model for Minkowski spacetime. Third, taking the adjoint representation of any Lie group on its own Lie algebra gives a 'tangent 2-group', which serves as a gauge 2-group in 4d BF theory, which has topological gravity as a special case. Fourth, every Lie group has an 'inner automorphism 2-group', which serves as the gauge group in 4d BF theory with cosmological constant term. Fifth, every Lie group has an 'automorphism 2-group', which plays an important role in the theory of nonabelian gerbes. And sixth, every compact simple Lie group gives a 'string 2-group'. We also touch upon higher structures such as the 'gravity 3-group', and the Lie 3-superalgebra that governs 11-dimensional supergravity. © 2010 The Author(s).

Published
2011

33. Division algebras and supersymmetry II

Author

Baez, JC and Huerta, J

Subjects
Nuclear & Particles Physics, Mathematical Physics, Quantum Physics
Abstract

Starting from the four normed division algebras - the real numbers, complex numbers, quaternions and octonions - a systematic procedure gives a 3-cocycle on the Poincaré Lie superalgebra in dimensions 3, 4, 6 and 10. A related procedure gives a 4-cocycle on the Poincaré Lie superalgebra in dimensions 4, 5, 7 and 11. In general, an (n + 1)-cocycle on a Lie superalgebra yields a "Lie n-superalgebra": that is, roughly speaking, an n-term chain complex equipped with a bracket satisfying the axioms of a Lie superalgebra up to chain homotopy. We thus obtain Lie 2-superalgebras extending the Poincaré superalgebra in dimensions 3, 4, 6 and 10, and Lie 3-superalgebras extending the Poincaré superalgebra in dimensions 4, 5, 7 and 11. As shown in Sati, Schreiber and Stasheff's work on higher gauge theory, Lie 2-superalgebra connections describe the parallel transport of strings, while Lie 3-superalgebra connections describe the parallel transport of 2-branes. Moreover, in the octonionic case, these connections concisely summarize the fields appearing in 10- and 11-dimensional supergravity. © 2011 International Press.

Published
2011

34. The algebra of grand unified theories

Author

Baez, J and Huerta, J

Subjects
Grand unified theory, standard model, representation theory, General Mathematics, Pure Mathematics
Abstract

The Standard Model is the best tested and most widely accepted theory of elementary particles we have today. It may seem complicated and arbitrary, but it has hidden patterns that are revealed by the relationship between three "grand unified theories": theories that unify forces and particles by extending the Standard Model symmetry group U(1) × SU(2) × SU(3) to a larger group. These three are Georgi and Glashow's SU(5) theory, Georgi's theory based on the group Spin(10), and the Pati-Salam model based on the group SU(2) × SU(2) × SU(4). In this expository account for mathematicians, we explain only the portion of these theories that involves finite-dimensional group representations. This allows us to reduce the prerequisites to a bare minimum while still giving a taste of the profound puzzles that physicists are struggling to solve. © 2010.

Published
2010

41. Metabolically defined body size and body shape phenotypes and risk of postmenopausal breast cancer in the European Prospective Investigation into Cancer and Nutrition

Author

Mahamat‐Saleh, Y., primary, Rinaldi, S., additional, Kaaks, R., additional, Biessy, C., additional, Gonzalez‐Gil, E. M., additional, Murphy, N., additional, Le Cornet, C., additional, Huerta, J. M., additional, Sieri, S., additional, Tjønneland, A., additional, Mellemkjær, L., additional, Guevara, M., additional, Overvad, K., additional, Perez‐Cornago, A., additional, Tin Tin, S., additional, Padroni, L., additional, Simeon, V., additional, Masala, G., additional, May, A., additional, Monninkhof, E., additional, Christakoudi, S., additional, Heath, A. K., additional, Tsilidis, K., additional, Agudo, A., additional, Schulze, M. B., additional, Rothwell, J., additional, Cadeau, C., additional, Severi, S., additional, Weiderpass, E., additional, Gunter, M. J., additional, and Dossus, L., additional

Published
2023
Full Text
View/download PDF

42. Rim-to-Rim Wearables at the Canyon for Health (R2R WATCH): Physiological, Cognitive, and Biological Markers of Performance Decline in an Extreme Environment

Author

Divis, Kristin, Abbott, Robert, Branda, Cathy, Emmanuel-Aviña, Glory, Femling, Jon, Huerta, J. Gabriel, Jelinková, Lucie, Jennings, J. Kyle, Pearce, Emily A., Ries, Daniel, Sanchez, Danielle, Silva, Austin, Divis, Kristin, Abbott, Robert, Branda, Cathy, Emmanuel-Aviña, Glory, Femling, Jon, Huerta, J. Gabriel, Jelinková, Lucie, Jennings, J. Kyle, Pearce, Emily A., Ries, Daniel, Sanchez, Danielle, and Silva, Austin

Abstract

Success in extreme environments comes with a cost of subtle performance decrements that if not mitigated properly can lead to lifethreatening consequences. Identification and prediction of performance decline could alleviate deleterious consequences and enhance success in challenging and high-risk operations. The Rim-to-Rim Wearables at the Canyon for Health (R2R WATCH) project was designed to examine the cognitive, physiological, and biological markers of performance decline in the extreme environment of the Grand Canyon Rim-to-Rim (R2R) hike. The study utilized commercial off-the-shelf cognitive and physiological monitoring techniques, along with subjective self-assessments and hematologic measurements to determine subject performance and changes across the hike. The multiyear effort collected these multiple data streams in parallel on a large sample of participants hiking the R2R, leading to a rich and complex data set. This article describes the methodology and its evolution as devices and measurements were assessed after each data collection event. It also highlights a subset of the patterns of results found across the data streams. Subsequent work will draw on this data set to focus on building more sophisticated, predictive statistical models and dive deeper into specific analyses (such as the physiological and biological profiles of hikers who were left behind by their hiking partners).

Published
2023

43. Metabolically defined body size and body shape phenotypes and risk of postmenopausal breast cancer in the European Prospective Investigation into Cancer and Nutrition

Author

Epi Kanker, Cancer, JC onderzoeksprogramma Kanker, Epi Kanker Team C, Mahamat-Saleh, Y., Rinaldi, S., Kaaks, R., Biessy, C., Gonzalez-Gil, E. M., Murphy, N., Le Cornet, C., Huerta, J. M., Sieri, S., Tjønneland, A., Mellemkjær, L., Guevara, M., Overvad, K., Perez-Cornago, A., Tin Tin, S., Padroni, L., Simeon, V., Masala, G., May, A., Monninkhof, E., Christakoudi, S., Heath, A. K., Tsilidis, K., Agudo, A., Schulze, M. B., Rothwell, J., Cadeau, C., Severi, S., Weiderpass, E., Gunter, M. J., Dossus, L., Epi Kanker, Cancer, JC onderzoeksprogramma Kanker, Epi Kanker Team C, Mahamat-Saleh, Y., Rinaldi, S., Kaaks, R., Biessy, C., Gonzalez-Gil, E. M., Murphy, N., Le Cornet, C., Huerta, J. M., Sieri, S., Tjønneland, A., Mellemkjær, L., Guevara, M., Overvad, K., Perez-Cornago, A., Tin Tin, S., Padroni, L., Simeon, V., Masala, G., May, A., Monninkhof, E., Christakoudi, S., Heath, A. K., Tsilidis, K., Agudo, A., Schulze, M. B., Rothwell, J., Cadeau, C., Severi, S., Weiderpass, E., Gunter, M. J., and Dossus, L.

Published
2023

44. Metabolically defined body size and body shape phenotypes and risk of postmenopausal breast cancer in the European Prospective Investigation into Cancer and Nutrition

Author

Mahamat-Saleh, Y., Rinaldi, S., Kaaks, R., Biessy, C., Gonzalez-Gil, E. M., Murphy, N., Le Cornet, C., Huerta, J. M., Sieri, S., Tjønneland, A., Mellemkjær, L., Guevara, M., Overvad, K., Perez-Cornago, A., Tin Tin, S., Padroni, L., Simeon, V., Masala, G., May, A., Monninkhof, E., Christakoudi, S., Heath, A. K., Tsilidis, K., Agudo, A., Schulze, M. B., Rothwell, J., Cadeau, C., Severi, S., Weiderpass, E., Gunter, M. J., Dossus, L., Mahamat-Saleh, Y., Rinaldi, S., Kaaks, R., Biessy, C., Gonzalez-Gil, E. M., Murphy, N., Le Cornet, C., Huerta, J. M., Sieri, S., Tjønneland, A., Mellemkjær, L., Guevara, M., Overvad, K., Perez-Cornago, A., Tin Tin, S., Padroni, L., Simeon, V., Masala, G., May, A., Monninkhof, E., Christakoudi, S., Heath, A. K., Tsilidis, K., Agudo, A., Schulze, M. B., Rothwell, J., Cadeau, C., Severi, S., Weiderpass, E., Gunter, M. J., and Dossus, L.

Abstract

Background: Excess body fatness and hyperinsulinemia are both associated with an increased risk of postmenopausal breast cancer. However, whether women with high body fatness but normal insulin levels or those with normal body fatness and high levels of insulin are at elevated risk of breast cancer is not known. We investigated the associations of metabolically defined body size and shape phenotypes with the risk of postmenopausal breast cancer in a nested case–control study within the European Prospective Investigation into Cancer and Nutrition. Methods: Concentrations of C-peptide—a marker for insulin secretion—were measured at inclusion prior to cancer diagnosis in serum from 610 incident postmenopausal breast cancer cases and 1130 matched controls. C-peptide concentrations among the control participants were used to define metabolically healthy (MH; in first tertile) and metabolically unhealthy (MU; >1st tertile) status. We created four metabolic health/body size phenotype categories by combining the metabolic health definitions with normal weight (NW; BMI < 25 kg/m2, or WC < 80 cm, or WHR < 0.8) and overweight or obese (OW/OB; BMI ≥ 25 kg/m2, or WC ≥ 80 cm, or WHR ≥ 0.8) status for each of the three anthropometric measures separately: (1) MHNW, (2) MHOW/OB, (3) MUNW, and (4) MUOW/OB. Conditional logistic regression was used to compute odds ratios (ORs) and 95% confidence intervals (CIs). Results: Women classified as MUOW/OB were at higher risk of postmenopausal breast cancer compared to MHNW women considering BMI (OR = 1.58, 95% CI = 1.14–2.19) and WC (OR = 1.51, 95% CI = 1.09–2.08) cut points and there was also a suggestive increased risk for the WHR (OR = 1.29, 95% CI = 0.94–1.77) definition. Conversely, women with the MHOW/OB and MUNW were not at statistically significant elevated risk of postmenopausal breast cancer risk compared to MHNW women. Conclusion: These findings suggest that being overweight or obese and metabol

Published
2023

45. Association of leukocyte DNA methylation changes with dietary folate and alcohol intake in the EPIC study

Author

Perrier, F., Viallon, V., Ambatipudi, S., Ghantous, A., Cuenin, C., Hernandez-Vargas, H., Chajès, V., Baglietto, L., Matejcic, M., Moreno-Macias, H., Kühn, T., Boeing, H., Karakatsani, A., Kotanidou, A., Trichopoulou, A., Sieri, S., Panico, S., Fasanelli, F., Dolle, M., Onland-Moret, C., Sluijs, I., Weiderpass, E., Quirós, J. R., Agudo, A., Huerta, J. M., Ardanaz, E., Dorronsoro, M., Tong, T. Y. N., Tsilidis, K., Riboli, E., Gunter, M. J., Herceg, Z., Ferrari, P., and Romieu, I.

Published
2019
Full Text
View/download PDF

47. Predicting fatigue from heart rate signatures using functional logistic regression.

Author

Ries, Daniel and Gabriel Huerta, J.

Subjects
*HEART beat, *REGRESSION analysis, *EXTREME environments, *FORECASTING, *HUMAN ecology, *LOGISTIC regression analysis
Abstract

Physical fatigue can have adverse effects on humans in extreme environments. Therefore, being able to predict fatigue using easy to measure metrics such as heart rate (HR) signatures has potential to have an impact in real‐life scenarios. We apply a functional logistic regression model that uses HR signatures to predict physical fatigue, where physical fatigue is defined in a data‐driven manner. Data were collected using commercially available wearable devices on 47 participants hiking the 20.7‐mile Grand Canyon rim‐to‐rim trail in a single day. Fitted model provides good predictions and interpretable parameters for real‐life application. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

49. Prevalencia de metanógenos y factores asociados en pacientes con síndrome de intestino irritable y controles sanos en una población del sureste de México

Author

Aja-Cadena, M.G., primary, Amieva-Balmori, M., additional, Taboada-Liceaga, H.A., additional, Cobos-Quevedo, O.J., additional, Hernández-Ramírez, G.A., additional, Reyes-Huerta, J., additional, Roesch-Dietlen, F., additional, Meixuerio-Daza, A., additional, and Remes-Troche, J.M., additional

Published
2023
Full Text
View/download PDF

50. Rim-to-Rim Wearables at the Canyon for Health (R2R WATCH): Physiological, Cognitive, and Biological Markers of Performance Decline in an Extreme Environment

Author

Divis, Kristin, primary, Abbott, Robert, additional, Branda, Cathy, additional, Emmanuel-Aviña, Glory, additional, Femling, Jon, additional, Huerta, J. Gabriel, additional, Jelinková, Lucie, additional, Jennings, J. Kyle, additional, Pearce, Emily A., additional, Ries, Daniel, additional, Sanchez, Danielle, additional, and Silva, Austin, additional

Published
2023
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results