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A microfluídica consiste na manipulação de fluidos da ordem de picolitros, o que leva ao uso mínimo de reagentes assim como o baixo custo de material químico e analitos [1]. Há al- guns anos, muitos desenvolvimentos e aplicações têm focado em mostrar que métodos tradi- cionais de alto custo podem ser simplificados em dispositivos de grandeza consideravelmente menores, mais conhecidos como sistemas lab-on-a-chip. Alguns exemplos deles podemos mencionar: dispositivos baseados em materiais viscoelásticos mediante soft-lithogaphy [2], sistemas baseados em papel ouPADs - microfluidics paper analytical devices [3], entre out- ros. Alternativamente, métodos numéricos como o método dos elementos finitos (FEM) [4] tem permitido o desenvolvimento da fluidodinâmica computacional, a qual permite uma análise e adaptação ao nível da microfluídica. Neste trabalho, nós focamos na geração de emulsões simples, tanto na parte experimental, desde a fabricação dos dispositivos com microcanais e a construção de bombas de infusão, como a parte computacional baseado em OpenFoam. Esta última aplicação usando como princípio a hidrofobicidade [5, 6] das paredes internas dos dispositivos microfluídicos. Microfludics concerns the manipulation of fluids at the order of some picoliters, which leads to the use of minimum of reactant, and therefore relative low cost of chemical reactants and analytes [1]. Some years ago, multiple applications have been developed in order to show that traditional expensive experiments can be simplified into simple chips. Some examples: the use of certain elastomers like PDMS, some ceramic materials as low-temperature co-fired ceramic (LTCC) modules [7], the developement of PADs - microfluidics paper analytical devices [3], among others. Alternatively, along some decades, the finite element methods (FEM) [4] has provided, the computational fluid dynamics (CFD) which permits the support and adaptation for analysis for microfluidics. In this work, we focus in the generation of simple emulsions, and illustrate the experimen- tal and theoretical method for reaching them. Experimentally, by using softlithography techniques for building microdevices on polydimethylsiloxane (PDMS) materials, and by using an open source hardware Arduino [8] for programming and controlling a system of sy- ringe infusion. Parallelly, such emulsions are obtained too in an open source computational method based on OpenFoam [9], using a suitable method regarding the wettability [5, 6] of the inner microchannel walls.

Técnicas de elicitação de requisitos são aplicadas para identificar as necessidades dos diferentes stakeholders no desenvolvimento de software. No entanto, engenheiros de software novatos encontram dificuldades ao aplicar estas técnicas na prática. Este artigo apresenta um relato de experiência sobre a combinação de técnicas de elicitação de requisitos e uma análise de opiniões dos alunos que aplicaram estas técnicas em um projeto real. Os resultados indicam: a aceitação da atividade formadora durante a disciplina; que os alunos se sentiram motivados a pesquisar mais sobre as técnicas para escolher a mais apropriada ao contexto do problema sugerido; e que mais material de apoio é necessário para ajudar na replicação das técnicas.

espanolIntroduccion: El implante valvular aortico percutaneo ha sido valorado en diferentes escenarios del amplio espectro de lapoblacion portadora de estenosis aortica grave sintomatica. La eleccion del tipo de tratamiento parte de una evaluacion delriesgo de un equipo multidisciplinario.Objetivos: El objetivo de este estudio fue analizar las caracteristicas y conocer los resultados de los pacientes sometidos aIVAP en Latinoamerica segun el riesgo.Material y metodos: Se incluyeron a partir de marzo de 2009 a diciembre de 2018 pacientes en forma continua del registromulticentrico latinoamericano de implante valvular aortico percutaneo. La indicacion de implante valvular aortico percutaneofue realizada en cada caso por un equipo multidisciplinario local. Se estratifica la poblacion en funcion del riesgo quirurgicoevaluado por el puntaje STS-PROM. Se definieron tres grupos en funcion de los puntos de corte del STS-PROM establecidos:riesgo alto (RA, mayor del 8%), riesgo intermedio (RI, entre el 4% y el 8%) y riesgo bajo (RB, menordel 4%).Resultados: Se incluyeron en el analisis 770 pacientes; la mitad era de sexo femenino (50,2%) con una mediana de edad de 81anos (RIC 75,6-85,7). Del total, 230 pacientes (29,8%) fueron incluidos en el grupo AR (STS-PROM medio 11 [9,3-16,7]); 339pacientes (44%), al riesgo intermedio (STS-PROM medio 6 [4,8-6,71]); y los restantes 201 (26,1%), al bajo riesgo (STS-PROMmedio 2,7 [2-3,24]). La proporcion de pacientes de bajo riesgo se incremento a lo largo del periodo del registro (ptrend 0,011).Se utilizo acceso femoral (95%), y fue percutaneo en el 69% de los pacientes. Se implantaron en el 80% valvulas autoexpandibles.Del total de valvulas implantadas, el 23% (n = 177) resultaron ser reposicionables sin diferencias a traves de los grupos.No se evidenciaron diferencias en mortalidad a los 30 dias (RA 10,4%, RI 6,48%, RB 5,9%, p: 0,154) Tanto en el RA como enel de RB se observo una reduccion de la mortalidad (RA 13,7%-4,1%, p: 0,001; RB 11,7%-0%; p: 0,0023).Conclusiones: La estratificacion de riesgo mediante puntajes quirurgicos continua representando una guia de gran utilidad,sin embargo la indicacion de implante valvular percutaneo en el mundo real incorpora otros factores no contemplados en lapuntuacion clasica, que modifica nuestras decisiones en la practica diaria. EnglishIntroduction: Transcatheter aortic valve implantation (TAVI) has been evaluated in different scenarios of the broad spectrumof patients with severe symptomatic aortic stenosis. The choice of treatment starts through a risk assessment guided by amultidisciplinary team.Purpose: The aim of this study was to analyze the population undergoing TAVI in Latin America according to their risk.Methods: From March 2009 to December 2018, consecutive TAVI procedures registered in the Latin American multicenter registrywere included. The indication of TAVI was made in each case by a multidisciplinary team set up by each center. The population isstratified according to the surgical risk evaluated by the STS-PROM score. Three groups were defined, based on the establishedSTS-PROM cut-off points: high risk (RA, higher 8%), intermediate risk (IR, between 4%-8%) and low risk (RB, lower 4%).Results: 770 patients were included in the analysis, resulting 50,2% female, with a mean age of 81 y/o (IQR 75.6-85.7). 29.8%were included in the AR group (STS-PROM 11 (9.3-16.7), 44% at intermediate risk (STS-PROM 6 (4.8-6.71) and 26.1% atlow risk (STS-PROM 2.7 (2-3.24). The proportion of low-risk patients has increased significantly over the period of inclusion(ptrend 0.011). Femoral access (95%), being percutaneous in 69% of patients. Self-expanding valves were implanted in 80%.23% of the valves were repositionable without differences across the groups. There was no differences in 30-day mortality(RA 10.4%, IR 6.48%, RB 5.9%, p 0.154). Reduction in mortality were observed (RA 13, 7-4.1%, p0.001; RB 11.7-0%; p 0.0023)during the analyzed period.Conclusions: Risk stratification through surgical “scores” continues to represent a very useful guide, however the indicationof TAVI in the real world incorporates other factors not contemplated in the classical score, which modifies our decisions indaily practice.

Aspects of the management of scientific journals and the particularities of them are discussed in this article.Its purposeis to carry out abibliographic review on management linked to the process-based approach, which provides a new dimension and synthesizes the qualities of the various components of the management process. Scientific journals and their management process are characterized.The process approach is analyzed as management technology for its subsequent implementation in the specific field of management of the scientific publications.

El presente trabajo plantea que la conservación del patrimonio edificado de género religioso (templos, santuarios, conventos, etc.) es ampliamente favorecida cuando se conservan también las prácticas religiosas que dieron origen a los edificios. Las fiestas religiosas, innegable patrimonio cultural inmaterial de los pueblos de América, son garantía del mantenimiento, rescate y restauración de los bienes muebles e inmuebles a ellas vinculadas. Para argumentar lo anterior, se ha optado por un método inductivo con un enfoque cualitativo diacrónico, que tiene como punto de partida la Península de Yucatán durante la segunda mitad del siglo XIX. Así, a través de consideraciones de la Historia y de la Arquitectura, es posible fundamentar el argumento inicial, pues los casos del pasado demuestran que al conservarse lo inmaterial, la conservación de lo material está garantizada; mientras que al perderse lo inmaterial, también lo material perece. Los resultados ofrecen pautas para que al repetirse este estudio tomando otros períodos y latitudes como muestra, se pueda inducir la generalización del planteamiento.

In the teaching of Software Engineering (SE), serious games or educational games are becoming increasingly used tools to stimulate the learning of aspects related to the software development process. However, few games are applied in the classroom, as there is no synthesized information about which games can be used depending on the content of the SE taught. This paper aims to identify which educational games have been developed for teaching SE in Brazil. A systematic mapping was carried out on digital bases for teaching computer and software engineering, identifying 25 educational games. The results indicate that although there are games for teaching project management, software testing and software process, there is still a need for games that include new dynamics beyond the traditional ones (e.g. games based on questions and answers, boards and cards) and topics in the discipline. En la enseñanza de la Ingeniería del Software (IS), los juegos serios o los juegos educativos se están convirtiendo en herramientas cada vez más utilizadas para estimular el aprendizaje de aspectos relacionados con el proceso de desarrollo de software. Sin embargo, se aplican pocos juegos en el aula, ya que no hay información sintetizada sobre qué juegos se pueden usar según el contenido de IS enseñado. Este artículo tiene como objetivo identificar qué juegos educativos se han desarrollado para enseñar ES en Brasil. Se realizó un mapeo sistemático sobre bases digitales para la enseñanza de ingeniería informática y de software, identificando 25 juegos educativos. Los resultados indican que, aunque hay juegos para enseñar administración de proyectos, pruebas de software y procesos de software, todavía hay una necesidad de juegos que incluyan nuevas dinámicas diferentes de las tradicionales (como juegos de preguntas y respuestas, juegos de mesa o cartas) y temas en la disciplina. No ensino de Engenharia de Software (ES), os jogos sérios ou jogos educacionais estão se tornando ferramentas cada vez mais utilizadas para estimular o aprendizado dos aspectos relacionados ao processo de desenvolvimento de software. No entanto, poucos são os jogos aplicados em sala de aula, pois não há informações sintetizadas sobre quais jogos podem ser usados dependendo do conteúdo de ES ministrado. Este artigo tem por objetivo identificar quais jogos educacionais foram desenvolvidos para o ensino de ES no Brasil. Foi realizado um mapeamento sistemático em bases digitais de ensino de computação e engenharia de software, identificando 25 jogos educacionais. Os resultados indicam que embora haja jogos para o ensino de gerenciamento de projetos, teste de software e processo de software, ainda há a necessidade de jogos que contemplem novas dinâmicas de jogos além das tradicionais (jogos de pergunta e resposta, tabuleiro e baralho) e tópicos da disciplina.

The complexity of a non-linear character that represents the act of teaching does not allow the teacher to resort to a single way of approaching the process of education in higher education. In other words, contemporary society filled with information technologies with a high degree of interactivity requires from teachers a greater understanding and search for different motivational forms and mechanisms for students. In this context, the work addresses the use of digital games as a tool for interaction between students and kinetic chemistry content, as an alternative methodology of the teaching and learning process. For this purpose, an interactive board (Edutable), logical management software and a mobile application were designed and built during the work. Then, based on the usability method, task success studies and positive usability experience were performed. The results of the evaluations showed that, in the users' perception, the board game complies with the playful and educational character, obtaining scores above 80% on the SUS (System Usability Scale), an evaluation model applied in the present work. La complejidad de un carácter no lineal que representa el acto de enseñar no le permite al maestro recurrir a una sola forma de abordar el proceso de educación en la educación superior. En otras palabras, la sociedad contemporánea llena de tecnologías de la información con un alto grado de interactividad requiere de los maestros una mayor comprensión y búsqueda de diferentes formas y mecanismos de motivación para los estudiantes. En este contexto, el trabajo aborda el uso de juegos digitales como una herramienta para la interacción entre los estudiantes y el contenido de química cinética, como una metodología alternativa del proceso de enseñanza y aprendizaje. Para este propósito, se diseñó y construyó una placa interactiva (Edutable), un software de administración lógica y una aplicación móvil durante el trabajo. Luego, con base en el método de usabilidad, se realizaron estudios de éxito de tareas y experiencia de usabilidad positiva. Los resultados de las evaluaciones mostraron que, en la percepción de los usuarios, el juego de mesa cumple con el carácter lúdico y educativo, obteniendo una puntuación superior al 80% en el SUS (Escala de usabilidad del sistema), un modelo de evaluación aplicado en el presente trabajo. A complexidade de caráter não-linear que representa o ato de ensinar não permite ao docente recorrer a uma única forma de abordar o processo de educação no ensino superior. Em outros termos, a sociedade contemporânea recheada de tecnologias de informações com o elevado grau de interatividade exige dos professores uma maior compreensão e busca por diferentes formas e mecanismos motivacionais para os alunos. Nesse contexto, o trabalha aborda o uso de jogos digitais como ferramenta de interação entre alunos e conteúdo de química cinética, como uma metodologia alternativa do processo de ensino e aprendizagem. Para tanto, durante o trabalho foi projetado e construído um tabuleiro interativo (Edutable), um software de gerenciamento lógico e um aplicativo móvel. Em seguida, com base no método de usabilidade, foram realizados estudos de sucesso de tarefa e experiência de usabilidade positiva. Os resultados das avaliações mostraram que, na percepção dos usuários, o jogo de tabuleiro cumpre com o caráter lúdico e educativo obtendo pontuação acima de 80% na escala SUS (System Usability Scale), modelo de avaliação aplicado no presente trabalho.

The energy market is undergoing important changes, driven by the realization of the European internal energy market on the one hand and the increase of distributed energy resources on the other hand. The introduction of new resources in the energy market that are mainly connected to the distribution grid creates new opportunities and challenges for system operators (TSO and DSO), commercial market players, and end consumers. In particular, resources connected at the distribution grid could be used to provide ancillary services (e.g., frequency control, congestion management, and voltage control). Consequently, coordination between system operators is needed to guarantee a safe, reliable, and cost-efficient use of these resources. This chapter introduces five coordination schemes to enhance interaction between system operators. Each scheme is described in terms of roles, responsibilities, and market design. Furthermore, we discuss the advantages, disadvantages, and feasibility of each coordination scheme and evaluate the link with the ongoing European evolutions.

“La tesis, identifica, analiza y caracteriza las creencias religiosas en la península de Yucatán en el período comprendido entre 1864 y 1914 a partir de las celebraciones del catolicismo popular y de las intervenciones constructivas realizadas a los templos u otros espacios sagrados. El capítulo 1 presenta un panorama general de los procesos políticos y económicos que incidieron en la vida religiosa del pueblo. Para eso se hace un recuento desde la llegada del segundo imperio hasta la llegada de la revolución a Yucatán. Un aspecto importante a considerar es la sombra de la guerra de castas lo que se ejemplifica con el caso de Kantunil. También en este capítulo se aborda la economía poniendo particular énfasis en la vida de los trabajadores de las haciendas. Además incluye a los obispos, sacerdotes, obreros, inmigrantes, protestantes y otros sectores de la población. El capítulo 2 presenta el marco teórico en cuanto al catolicismo popular y el valor de las imágenes en las celebraciones introduciendo los conceptos de festividades intra ecclesiam y extra ecclesiam. Por su parte el capítulo 3 expone las características de las tipologías arquitectónicas de la época en la región entre las que destacaron el estilo Tabasco y el neogótico tropical, así como el tema de los oratorios particulares. En el capítulo 4 se aborda de manera particular las celebraciones y construcciones en honor a Jesucristo como el santísimo sacramento, las imágenes de Cristo crucificado, el Sagrado Corazón de Jesús y el Niño Dios. En el 5 están las dedicadas a la bienaventurada madre de Dios en sus advocaciones de La Inmaculada Concepción, Asunción, Candelaria, Carmen y Guadalupe, entre otras. El capítulo 6 estudia las devociones a San José, San Joaquín, Santa Ana, los Santos Reyes magos de Oriente, San Juan Bautista y Santa Isabel”.

In this paper, we consider consumers and prosumers who interact on a platform. Consumers buy energy to the platform to maximize their usage benefit while minimizing the cost paid to the platform. Prosumers, who have the possibility to generate energy, self-consume part of it to maximize their usage benefit and sell the rest to the platform to maximize their revenue. Product differentiation is introduced and consumers can specify preferences regarding locality, RES-based generation , and matchings with the prosumers. The consumers and prosumers' problems being coupled through a matching probability, we provide analytical characterizations of the resulting Nash equilibrium. Assuming supply-shortages occur, we reformulate the platform problem as a consensus problem that we solve using Alternating Direction Method of Multipliers (ADMM), enabling minimal information exchanges between the nodes. On top of the platform, a trust-based mechanism combining exploitation of nodes with good reputation and exploration of new nodes, is implemented to determine the miner node which validates the transactions. A case study is provided to analyze the impact of preferences and miner selection dynamic process.

La bibliografía reporta amplitud en lo concerniente al campo de la edición de revistas científicas donde los avances científico tecnológicos aportaron una nueva dinámica. Las nuevas tecnologías de la información y la comunicación sirven de herramientas y han transformado radicalmente el escenario de la evaluación de la publicación científica. Variedad de perspectivas, instrumentos e indicadores impactan en los procesos de evaluación. El objetivo de este trabajo es ofrecer una valoración del proceso actual de evaluación de las publicaciones científicas seriadas. Los procedimientos utilizados son la revisión bibliográfica, análisis de textos y síntesis de los hallazgos desde lo teórico. Se concluye que la publicación científica seriada ha pasado a ser, más que un proceso singular de la comunicación científica, el modo fundamental de evaluación de la calidad del trabajo científico, de ahí la importancia de tener claridad y propuestas propias de los indicadores de la evaluación.

Submitted by Divis??o de Documenta????o/BC Biblioteca Central (ddbc@ufam.edu.br) on 2017-08-25T18:13:09Z No. of bitstreams: 2 Tese - Luis J. E. R. Cabrejos.pdf: 5126285 bytes, checksum: b667aa9fb7c3b14f995507bb4a821f1e (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Approved for entry into archive by Divis??o de Documenta????o/BC Biblioteca Central (ddbc@ufam.edu.br) on 2017-08-25T18:13:30Z (GMT) No. of bitstreams: 2 Tese - Luis J. E. R. Cabrejos.pdf: 5126285 bytes, checksum: b667aa9fb7c3b14f995507bb4a821f1e (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Approved for entry into archive by Divis??o de Documenta????o/BC Biblioteca Central (ddbc@ufam.edu.br) on 2017-08-25T18:13:48Z (GMT) No. of bitstreams: 2 Tese - Luis J. E. R. Cabrejos.pdf: 5126285 bytes, checksum: b667aa9fb7c3b14f995507bb4a821f1e (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Made available in DSpace on 2017-08-25T18:13:48Z (GMT). No. of bitstreams: 2 Tese - Luis J. E. R. Cabrejos.pdf: 5126285 bytes, checksum: b667aa9fb7c3b14f995507bb4a821f1e (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2017-06-08 CNPq - Conselho Nacional de Desenvolvimento Cient??fico e Tecnol??gico User eXperience (UX) refers to a holistic perspective and an enrichment of traditional quality models with non-utilitarian concepts, such as fun, joy, pleasure, hedonic value or ludic value. In order to evaluate UX in software applications, several technologies (tools, methods, techniques) have been proposed that range from using questionnaires to employing biometrics to gather quantitative and qualitative data on users??? experience. However, there is a need for research in the development of specific UX evaluation technologies that are easy and comfortable to use from the point of view of users, while supporting software engineers in the correction of the aspects that cause poor experiences. Additionally, new UX approaches should be proposed for evaluating mobile applications, as there is still a shortage of methods for this type of applications, which is rising in demand. This doctoral dissertation proposes an alternative approach for evaluating mobile applications called Redesigning for EXperience (REX), which intends to be less intrusive for users when extracting UX data, while generating reports containing design suggestions for improving the UX. We assessed the acceptance of the initial versions of the REX approach from the point of view of users and software engineers in two studies. When compared to 3E, a qualitative UX evaluation method, the results showed that REX was perceived as more fun, useful and more interactive. Additionally, software engineers considered REX useful and easy to understand, while suggesting improving its report to facilitate its understanding and increase its use. After working on the improvements opportunities from the empirical studies, we developed a tool support for the REX approach called the REX report generator. Also, we carried out an observational study to verify to which extent the REX approach could be applied in a real software development project. Thus, REX was employed by users to evaluate a mobile educational application and a discussion meeting was held with the software development team to discuss the improvement suggestions provided by REX to support the redesign process. The findings from the observational study indicated the satisfaction of users to report their experience with the REX approach, while the members of the development team agreed with the usefulness of the REX report and its improvement suggestions. By providing design suggestions, we aim to support software engineers in improving the UX of the developed mobile applications, thus increasing their quality and acceptance in the market. .

Este artículo presenta los resultados del uso de Redes Neuronales Artificiales (RNA) para la estimación de secciones óptimas de vigas y columnas en concreto reforzado en edificaciones aporticadas simétricas de 1 a 6 pisos teniendo en cuenta los requisitos mínimos exigidos en la NSR-10 relacionados con la deriva y el diseño sísmico. Además se estudió la sensibilidad de la deriva respecto a los valores de dimensiones de vigas y de columnas, para que una vez se tenga una mejor comprensión de dicha relación, se puedan obtener diseños óptimos de manera más rápida, sencilla y confiable en comparación con los procedimientos utilizados actualmente.

La equidad como criterio de cobertura de la aplicación de potestades administrativas, como criterio configurador del ejercicio de potestades administrativas; la equidad como criterio corrector de las disfunciones en la aplicación de la norma y garantizador del cumplimiento de la finalidad atribuida a la norma; la equidad como criterio vinculante a los operadores jurídicos para considerar las consecuencias de hecho a las que conduce la mecánica aplicación de las normas y que obliga a tomar en consideración la necesidad de dar cobertura y protección a intereses de facto que la norma positiva no ha podido recoger y que podrían encontrarse cubiertos por valores y principios constitucionales. En torno a todo ello, los autores, con un examen incisivo de concretas situaciones, van extrayendo consecuencias de la mano de la jurisprudencia en una labor creativa y sugerente.

Se crea un dispositivo para ser usado en las enfermedades obstructivas bajas del sistema urológico. La derivación inmediata de la orina por medio del cateterismo uretral o a través de una punción suprapúbica, mediante un dispositivo conocido como trócar es el tratamiento de elección de estas urgencias. La dificultad de adquirir dicho dispositivo en Zimbabwe donde nos encontrábamos cumpliendo misión internacionalista conllevó a realizar un dispositivo de punción suprapúbica de muy bajo costo, capaz de resolver los problemas de urgencia urológicas obstructivas, que permitiera evitar las complicaciones y facilitar su utilización por parte del especialista. Para la confección del trócar de punción suprapúbica ajustable (TPSA) fueron recuperados diferentes materiales en desuso (Ej. El mango del dispositivo fue hecho a partir de un taladro ortopédico y la porción punzante se creó a partir de cabilla de acero inoxidable a la cual se le hizo una punta y una rosca). En el periodo de mayo de 2005 a diciembre de 2006 se realizaron 90 punciones suprapúbica a pacientes con retenciones urinarias agudas y crónicas, por enfermedades obstructivas que acudían al cuerpo de guardia o consultas. Los resultados evidenciaron que de los 30 pacientes instrumentados con el TPSA, la mayoría eran del sexo masculino, solo uno desarrolló sepsis post instrumentación y ningún trauma por intentos fallidos y/o perforaciones intestinales con resultados alentadores con respecto a los pacientes atendidos con el dispositivo tradicional y con instrumentos improvisados no técnicos, constituyendo un aporte importante dentro de la UrologíaA device to be used in lower obstructive diseases of the urologic system is created. The immediate deviation of the urine either through urethral catheter or suprapubic punction, by means of a device known as trocar is the elective treatment of these medical emergencies. The difficulties to purchase such device in Zimbabwe where a Cuban medical international mission was taking place, led to the creation of a device to perform suprapubic punctions at very low prices, capable of solving obstructive urologic emergency, in order to avoid complications and to ease its use by the specialists. To create the Adjustable Trocar of Suprapubic Punction (ATSP) different disused materials were recuperated (Ex. The handle of the device was made of an orthopedic drill and the sharp portion from a stainless steel belaying pin, making in it a tip and a thread). During May 2005 to December 2006, 90 suprapubic punctions were performed to patients that attended to the Emergency Rooms or Clinics suffering from acute and chronic retention of urine due to obstructive diseases. Results showed that out of 30 patients treated with the instrument (ATSP), male sex mainly, only one developed post-instrument sepsis and no traumas due to failed attempts and/or intestinal perforations was observed; compared to the patients treated with the traditional device and non-technical improvised instruments, it constitutes a significant contribution in Urology.

This essay identifies and analyzes the characteristics of the daily life of workers in Xcumpich, a henequen hacienda of Yucatan, at the beginning of 20th century. It explores the main problems those workers experienced, the situations that made their life bearable, as well as the benefits they received by living in the hacienda, including health care and preferential treatment for the elderly. Finally, it determines the role played by the chapel and housing in the life of the hacienda inhabitants.

The distribution network is being challenged bythe increasing capacity of Distributed Generation (DG),end-users embracing smart grid technologies to offer their flexibility,the continuous growth of the peak load in most European countries,the expected increase of Electric Vehicles (EVs) to hit the road by 2020 along with public charging stations. All of these evolving and new uses of electricity increase the complexity of the management of the distribution system. Current trends impose challenges that impact the ability of the DSO to carry out his responsibilities: develop, operate, and maintain the network in order to deliver high-quality services to grid users and other stakeholders of the electric power system, while ensuring safety of people, assets most efficient use and system security incooperation with TSOs. DSOs need to evolve from its former “fit and forget” approach towards an Active Distribution System Management approach to ensure the fulfilment of DSOs’ core responsibilities by taking advantage of the opportunities brought by smart grid technologies. The exploration of these opportunities could lead to the provision of new regulated services, the facilitation of electricity markets, the empowerment of the end-customers and the creation of sustainable public policies for the cost-efficient integration of renewables. This evolution will allow DSOs to provide an adequate Quality of Service (QoS) and to enhance the Security of Supply (SoS) in a cost-efficient way.

The West Virginia University Transportable Heavy-Duty Emissions Testing Laboratory was used to evaluate exhaust emissions from nine transit buses from six separate manufacturers, as commissioned by the Mexico City, Mexico, Secretariat of the Environment. The vehicles included a hybrid-drive diesel bus, two buses with lean-burn spark-ignited compressed natural gas (CNG) engines, and six buses powered by conventional diesel engines. Vehicle testing weights (curb weight plus passenger weight) ranged from 26,996 lb (12,256 kg) to 57,025 lb (25,889 kg), and passenger capacities ranged from 85 to 161. Two driving cycles, the European Transient Cycle (ETC, also known as the FIGE transient cycle) and a new, three-mode Mexico City Schedule, were used to simulate in-use driving conditions during emissions measurements. Diesel fuels with three different sulfur concentrations (15, 150, and 350 ppm) were also examined, and the lowest-sulfur fuel (15 ppm) was not found to have an appreciable direct effect on emissions. When the ETC was used, oxides of nitrogen (NOx) emissions varied from 5.5 to 11.6 g/mi, whereas particulate matter emissions varied from 0.02 to 0.86 g/mi. Significant differences in emissions and fuel economy for the two CNG buses raised the issue that fuel delivery systems must be optimized for operation at high altitudes. The differences in fuel economy and NOx emissions from the hybrid bus for congested and noncongested driving conditions were significantly less than those from the conventional diesel and CNG buses.

The measured data obtained from sensors in continuous monitoring of civil structures are mainly used for modal identification and damage detection. Therefore, when modal identification analysis is carried out the quality in the identification of the modes will highly influence the damage detection results. It is also widely recognized that the usefulness of the measured data used for modal identification and damage detection is significantly influenced by the number and locations of sensors. The objective of this study is the numerical implementation of two widely known optimum sensor placement methods in beam-like structures., {"references":["D.C. Kammer. \"Effect of model error on sensor placement for on-orbit\nmodal identification of large space structures\". Journal of Guidance,\nControl and Dynamics, 15(2):334-341, March-April 1992.","Z.Y. Shi, S.S. Law, and L.M. Zhang. \"Optimum sensor placement for\nstructural damage detection\", Journal of Engineering Mechanics,\nVolume 126, Issue 11, pp. 1173-1179, 2000.","F.M. Hemez and C. Farhat. \"An energy based optimum sensor\nplacement criterion and its application to structure damage detection\"\nProc. 12th Conf. on Int. Modal Analysis (Honolulu, HI: Society of\nExperimental Mechanics), pp. 1568–75, 1994.","C.R. Farrar, and G.H. James III. \"System identification from ambient\nvibration measurement on a Bridge\", Journal of Sound and Vibration,\nVol.205, No1, pp. 1-18, 1997.","J.N. Juang, and R.S. Pappa. \"Effects of Noise on Modal Parameter\nIdentification\", Journal of Guidance, pp. 295-303, 1986","H. Sohn and K.H. Law. \"Bayesian probabilistic approach for structure\ndamage detection\". Earthquake Engineering and Structural Dynamics,\n26:1259-1281, 1997.","J.P. Lynch, H. Sohn, and K.H. Law. The development and application of\na damage detection toolbox for matlab, The 5th US National Congress\non Computational Mechanics, University of Colorado at Boulder, CO,\nUSA, August 4-6, 1999."]}

La tesis identifica, analiza y caracteriza las principales devociones de la religiosidad popular que se practicaron en el período comprendido entre el surgimiento de la Guerra de Castas y el final del Porfiriato. Un aspecto medular del trabajo es el estudio de los espacios sagrados en donde se realizaban las celebraciones y prácticas devocionales a la par de las ceremonias institucionales del culto católico. ¿Cuáles fueron los lugares que tuvieron un valor religioso significativo para los yucatecos decimonónicos y cuáles eran las características plásticas de tales lugares que producían ese significado? Para responder dicha pregunta se analizan los espacios sagrados de Mérida que se estudiaron están la Catedral Metropolitana de San Ildefonso de Toledo y los templos de los barrios de Santa Lucía, Santa Ana, Mejorada, San Cristóbal y San Sebastián. También las iglesias que surgieron durante el siglo XIX como el templo de San José de la Montaña y las capillas neogóticas de Chuminópolis. Destaca la devoción a Nuestra Señora de Yucatán, imagen que se veneraba en el hoy desaparecido Templo de Jesús María, así como el desarrollo a la devoción a Nuestra Señora de Guadalupe en la región. El estudio abarca toda una región comprendida por la entonces Diócesis de Yucatán, es por ello que se incluyen los casos de espacios sagrados, imágenes y devociones como: Nuestra Señora de la Canledaria de Valladolid, Nuestra Señora de Izamal en Izamal, el Cristo Negro Señor de San Román en San Francisco de Campeche, Nuestra Señora del Carmen en Ciudad del Carmen, la Santa Cruz de El Cedral en Cozumel, entre otros. También se incluyen los templos y las devociones en Tabasco, en especial su capital San Juan Bautista. Del mismo modo se abordan las devociones al Sagrado Corazón de Jesús y a la Inmaculada Concepción de María en Belice, así como ciertos aspectos de la religiosidad en el Petén.

Made available in DSpace on 2015-04-11T14:03:02Z (GMT). No. of bitstreams: 1 Luis Jorge Enrique Rivero Cabrejos.pdf: 6587426 bytes, checksum: 089733fd8799984279076721cca2ad48 (MD5) Previous issue date: 2013-03-20 Coordena????o de Aperfei??oamento de Pessoal de N??vel Superior CAPES - Coordena????o de Aperfei??oamento de Pessoal de N??vel Superior Despite the increasing number of usability inspection methods for Web applications, most of these methods are being applied in later stages of the development process, which increases the cost of correcting the identified problems. This master degree thesis presents the Web Design Usability Evaluation (Web DUE) technique, a technique that was specifically crafted for the usability inspection of paper based prototypes (or mockups). The Web DUE technique aims at aiding inspectors in the identification of usability problems in earlier stages of the development process, thus reducing the cost of correcting them. To achieve this goal, the Web DUE technique suggests to divide mockups into Web page zones and, using a set of usability verification items, to check if the interface is usable or presents usability problems. To simulate interaction between the mockups and the user, and to support usability problems detection, we created the Mockup DUE tool. Both, the creation of the Web DUE technique and Mockup DUE tool, were supported by empirical validation. In this dissertation we present: (a) how we created the Web DUE technique based on the analysis of the results of a systematic mapping extension; (b) the feasibility study of the technique; (c) how the results from the empirical study helped in the creation of the Mockup DUE tool; (d) the feasibility study of the Mockup DUE tool; and (e) the evolution of the proposed technologies for the inspection of Web mockups. Apesar do aumento do n??mero de m??todos de inspe????o de usabilidade de aplica????es Web, a maioria destes m??todos s?? ?? aplicada nas ??ltimas etapas do processo de desenvolvimento, aumentando o custo de corre????o dos problemas encontrados. Esta disserta????o de mestrado apresenta a t??cnica Web Design Usability Evaluation (Web DUE), uma t??cnica espec??fica para inspe????es de usabilidade de prot??tipos em papel (ou mockups). A t??cnica Web DUE tem por finalidade apoiar os inspetores na identifica????o de problemas de usabilidade durante as primeiras etapas do processo de desenvolvimento, visando assim ?? redu????o dos custos de corre????o dos mesmos. Para atingir esse objetivo, a t??cnica Web DUE sugere a divis??o dos mockups em zonas de p??ginas Web e a avalia????o de usabilidade dos mesmos com base em um conjunto de itens de verifica????o. Para simular a intera????o entre os mockups e o usu??rio e apoiar a detec????o de defeitos de usabilidade, foi criada a ferramenta Mockup DUE. Tanto a t??cnica Web DUE quanto a ferramenta Mockup DUE tiveram sua constru????o e avalia????o apoiada por experimenta????o. Esta disserta????o apresenta: (a) como a t??cnica Web DUE foi elaborada com base na an??lise da extens??o de um mapeamento sistem??tico; (b) o estudo de viabilidade da t??cnica Web DUE; (c) a cria????o da ferramenta Mockup DUE com base nos resultados do primeiro estudo de viabilidade da t??cnica; (d) o estudo de viabilidade da ferramenta Mockup DUE; e (e) a evolu????o das tecnologias propostas para a inspe????o de mockups de aplica????es Web.

An artificial diet containing abalone silage and other ingredients was adjusted to different pH values (pH 4, 5, 6, 7 and 8) to evaluate the effect of dietary pH on palatability for juvenile abalone. The pelleted diets were offered to abalone for 12h periods. Maximum food intake was observed for diets adjusted to pH 6 and 8, which also were the toughest, with high water stability (low percentage of dry matter loss). The lowest intake was observed for the pH 5 diet, which had the lowest water stability. A forward stepwise regression procedure showed that food intake can be predicted from a linear combination of toughness (P

Balancing markets are critical for the operation of power systems. TSOs use these markets for the acquisition of the resources needed for the balance between generation and demand on real-time (minute-to-minute operation). Balancing markets, since their beginning, were conceived to cope with real-time operation issues such as forecast errors on generation/demand and unplanned power outages due to a fault on generation units or transmission facility. Today, balancing markets are facing new challenges. One of them is the incorporation of a considerable amount of intermittent renewable generation on the generation mix, which could impose an increase on the volumes traded on balancing markets in order to ensure the correct performance of the system. Another issue is the tendency of displacing national energy markets by regional markets within which multi-area Day-Ahead trading is managed. This article presents the current designs of several European balancing markets, i.e. The Belgian, Swiss, German, Danish, Spanish, French, Italian and Dutch balancing markets. Since control reserves vary from one system to another, this article first presents a classification of the control reserves used within the surveyed systems. From the classification we proceed to the comparison of the assessment, remuneration (methods and structure), and cost recovery for secondary and tertiary reserves applied by each TSO.