bluuebunny/crossref_metadata_2025 huggingface dataset:
El uso de las TIC por el Profesorado no Universitario. Modelo Básico e Influencia de Factores Personales y Contextuales
Authors: Suarez Jesús M. , Almerich Gonzalo , Orellana Natividad , Belloch Consuelo
Published: October 2023

El uso que hacen de las Tecnologías de la Información y la Comunicación (TIC) los diferentes agentes del Sistema Educativo sigue siendo uno de los elementos clave para cualquier reflexión encaminada a la orientación de políticas al respecto. Se presenta una aproximación a la estructura dimensional del uso de las TIC por el profesorado relacionándose dos ámbitos diferenciados: el personal-profesional y el del aula. Esto se estudia desde una aproximación comprehensiva que tiene en cuenta las dimensiones personales-contextuales más relevantes, utilizando un diseño de encuesta y recogiéndose la información mediante cuestionarios. La población está constituida por el profesorado de centros de educación primaria y secundaria de la Comunidad Valenciana. Se propone un modelo MIMIC para poner a prueba la estructura dimensional de los diferentes usos de las TIC y los efectos sobre las mismas de las dimensiones personales-contextuales. Se ha encontrado un ajuste plenamente satisfactorio que da cuenta de la estructura de los elementos fundamentales de ambos usos y su relación. Asimismo, se obtiene información consistente sobre la influencia de los factores personales y contextuales sobre cada uno de los elementos. Los hallazgos aportan claves más consistentes respecto al profesorado y, particularmente, para orientar las políticas del desarrollo profesional y la formación inicial.Palabras clave: Uso de las TIC, profesorado no universitario, factores personales y contextuales, modelo MIMIC. The use made by different agents of the Educational System of the Information and Communication Technologies (ICT) remains one of the key elements in any discussion aimed at targeting policies about it. This paper presents an approach to the dimensional structure of the use of ICT involving two distinct areas: personal and classroom use. At the same time, it is considered from a comprehensive approach that takes into account the most salient personal and contextual dimensions. To do this we used a survey design. The target population constitutes the teaching staff of centers of primary and secondary education of the Comunidad Valenciana. Information was collected through questionnaires. It is proposed a MIMIC model to test the dimensional structure of the different uses of ICT and the effects on them of personal and contextual factors. It has been found a fully satisfactory fit that accounts for the structure of the fundamental elements of both types of uses and their relationship. Also, you get consistent information on the influence of personal and contextual factors on each of the elements. The findings provide clues to establish more consistent policies on teachers and, particularly, to guide professional development and initial training.Keywords: ICT use, non university teachers, personal and contextual factors, MIMIC model.
Utilizando los Resultados de la Evaluación para Mejorar las Prácticas de Enseñanza: Un Caso de Estudio
Authors: Cisneros-Cohernour Edith J. , Stake Robert E.
Published: October 2023

Un cuerpo sustancial de investigación se ha centrado en el uso de opiniones de los estudiantes para evaluar la docencia universitaria. Esta investigación se ha centrado principalmente en la dimensionalidad, validez, fiabilidad y generalización de los puntajes otorgados por los estudiantes, y el estudio de los posibles factores de polarización que podrían afectar su validez (Marsh, 1984; Braskamp y Ory, 1994; El-Hassan, 1995). Sólo un número limitado de estudios se han dirigido hacia el uso longitudinal de valoraciones de los estudiantes y su posible influencia en la mejora de la enseñanza. Esta investigación por estudio de casos se ha comprometido con dicho propósito. Se trata de un estudio de caso acerca de un catedrático en una universidad pública orientada a la investigación en el medio oeste de los Estados Unidos de América. El estudio examina cómo el instructor utiliza la retroalimentación de sus compañeros, de su jefe de departamento y de los resultados de la evaluación basados en opiniones de estudiantes. La investigación es un intento de comprender mejor los resultados de la evaluación como retroalimentación para la mejora de la enseñanza.Palabras clave: Evaluación, enseñanza universitaria, mejora de la práctica docente. A substantial body of research has been conducted on the use of student evaluations of college teaching. This research has mainly centered on the dimensionality, validity, reliability and generalizability of the ratings, and the study of possible biasing factors that could affect the validity of the ratings (Marsh, 1984; Braskamp & Ory, 1994; El -Hassan, 1995). Only a limited number of studies have been conducted on the longitudinal use of student ratings and their possible influence on instructional improvement. This research case study is committed to that purpose. This is a case study of a senior professor in a public research university in the Midwest. The study traces how the instructor uses the feedback from peers, his department head and students. The research is an attempt to better understand the evaluation results as feedback for instructional improvement.Keywords: Evaluation, college teaching, teaching improvement.
Redes Semánticas: Herramienta para Identificar lo que debe Evaluarse en la Docencia Universitaria
Authors: Garza Rosa Ma.
Published: October 2023

Al cumplir seis años de la implementación de un sistema electrónico para evaluar funciones exclusivamente docentes en la UAAAN se vio la necesidad de indagar con alumnos y maestros acerca de los elementos que deben considerarse para evaluar la docencia. Este trabajo muestra las dimensiones de la enseñanza que a sugerencia de alumnos y maestros de la Universidad Autónoma Agraria Antonio Narro (UAAAN) deben integrarse al instrumento de evaluación docente que responden los alumnos cada semestre. Se utilizó un instrumento para red semántica que fue respondido por alumnos de 3º, 5º, 7º y 9º semestres de licenciatura y por maestros de tiempo completo. En el estudio se encontraron similitudes entre lo expresado por maestros y alumnos respecto a los aspectos que deben considerarse en la evaluación docente, pero no hubo similitud en la jerarquía de los mismos, es decir existen diferencias en la ponderación asignada por los participantes a dichos elementos.Palabras clave: Evaluación docente, redes semánticas, enseñanza This paper shows the dimensions of teaching that should be integrated in a teacher´s evaluation instrument, as suggested by students and teachers of the Universidad Autonoma Agraria “Antonio Narro” (called UAAAN) in Saltillo, Coahuila, Mexico. An instrument thought for a semantic network was used and answered by BA students from 3rd, 5th, 7th, and 9th semesters and full time teachers. After six years of having employed an electronic system to evaluate specifically teaching functions at the UAAAN, the necessity to inquire among teachers and students about the elements that should have been included in the evaluation of teaching was observed. This paper explores these elements using the semantic networks and finds similarities regarding the student’s and teacher’s opinions, but finds differences in the hierarchy assigned to these elements, that is, there is a difference between the assigned punctuation given by the participants to the above mentioned elements.Keywords: Teacher´s evaluation, semantic network, teaching.
La importancia de la Evaluación en las Instituciones Educativas Conforme a la Nueva Ley Orgánica de Educación Superior en el Ecuador
Authors: Martínez Moscoso Andrés , Vázquez Paula
Published: October 2023

El ensayo esboza un análisis histórico, crítico y con visión de futuro respecto a la importancia de la evaluación en las instituciones educativas ecuatorianas; en el contexto institucional y normativo respecto a educación superior, así como valorar las experiencias pasadas con el Consejo Nacional de Evaluación y Acreditación de la Educación Superior, CONEA, a raíz del Mandato Constituyente 14 de 2008 y como éstas pueden servir para afinar y fortalecer el nuevo proceso de evaluación y acreditación ante el cual se debe enfrentar el Consejo de Evaluación, Acreditación y Aseguramiento de la Calidad de la Educación Superior, CEAACES, de conformidad a la nueva estructura normativa constitucional de 2008, constituyéndose como una base de la nueva sociedad del conocimiento. Para esto es necesario replantearse el papel que deben cumplir las universidades y si estas cumplen con su finalidad social; y reconocer que la evaluación no busca culpables, sino un verdadero proceso de mejora en el sistema en beneficio de los ciudadanos.Palabras clave: Evaluación de la educación superior, Ecuador proceso constituyente, Sociedad del Conocimiento, procesos de evaluación docente. This essay makes an historic and critic approximation with a future perspective about the importance of educational evaluation process in Ecuadorian universities, in a new institutional and normative context. The article explores the experiences of “Consejo Nacional de Evaluación y Acreditación de la Educación Superior, CONEA” (the national accreditation agency), with the regulations of National Constituent Assembly, and how these experiences could be used to tune and fortify the (new) evaluation and accreditation process with the new agency “Consejo de Evaluación, Acreditación y Aseguramiento de la Calidad de la Educación Superior, CEAACES” in concordance with the (new) Ecuadorian Constitution of 2008. This process constitutes part of the foundations of the new knowledge society. To reach such a society, it is necessary to reconsider the appropriate role of universities and their social purpose. It also requires to recognize that the evaluation process doesn’t´ search for guilty, but intents to be a real process of improvement for the benefit of citizens.Keywords: Evaluation of higher education, Ecuador, constituent process, the knowledge society, teaching evaluation processes.
La Potencialidad de los Materiales en la Promoción de una Escuela Inclusiva
Authors: Martínez-Figueira Esther , Raposo-Rivas Manuela , Añel-Cabanelas Elena
Published: October 2023

El presente trabajo muestra resultados parciales de una investigación llevada a cabo en centros educativos de enseñanza obligatoria en una provincia española. En la primera parte, se presenta el desarrollo teórico en torno a la educación inclusiva y la potencialidad que guardan los materiales en su promoción. Posteriormente se hace referencia al diseño metodológico, que responde a un estudio de corte cuantitativo y exploratorio con el que, a través de específicos ítems de un cuestionario más amplio (Martínez, 2012), se recoge la opinión del profesorado sobre el papel y la importancia de los materiales en el ámbito de una escuela inclusiva. Además, se intenta acotar en qué medida son factores o se relacionan con estrategias que favorecen y/o dificultan los procesos de inclusión en los centros educativos. Los resultados y algunas conclusiones que presentamos vinculan la relación del uso de los materiales en una educación para todos/as, destacando que una dotación adecuada, junto con el buen hacer de los docentes, concedan a los materiales un papel relevante en la promoción de una escuela inclusiva. Lo aportado en este trabajo muestra la necesidad de profundizar en estos aspectos relacionados con los materiales, por ello terminamos proponiendo posibles futuras líneas de estudio.Palabras clave: Inclusión, materiales, recursos, indicadores, investigación. This paper shows partial results of a research held in schools of compulsory education in a Spanish province. The first part presents the theory development around inclusive education and the potential to keep the materials in their promotion. Later referring to methodological design that responds to a quantitative study and exploratory with which, through specific questionnaire items broader (Martinez, 2012), reflects the opinion of teachers on the role and importance materials in the field of inclusive schools. Also, it tries to see it to what extent are related to factors or strategies that promote and/or hinder the process of inclusion in schools. The results and conclusions say us the relationship there is between linking the use of materials with the education for all, stressing that adequate provision, along with the expertise of teachers, we are with materials for promoting inclusive school. This study shows the need to look into these aspects of materials, so we ended up proposing possible future lines of study.Keywords: Inclusion, materials, resources, indicators, research.
Dispositivos Didácticos en la Enseñanza Primaria de Quebec
Authors: Morales Ma Alejandra , Lenoir Yves , Jean Valérie
Published: October 2023

Teniendo a la base los conceptos de intervención educativa y de dispositivos (materiales), el presente artículo muestra cuáles son los dispositivos didácticos más utilizados por los docentes de primaria de Quebec, el cómo y el porqué de su utilización, al igual que su predominancia en las distintas disciplinas del currículum escolar. Para dar cuenta de estas preguntas, se exponen los resultados parciales de dos instrumentos metodológicos: un cuestionario respondido por 72 docentes y una entrevista individual efectuada a 7 docentes que permitió caracterizar en detalle el discurso de los docentes sobre los dispositivos didácticos, pero, en especial, el del texto escolar. Los resultados que se desprenden del discurso de los docentes indican que éstos utilizarían principalmente tres dispositivos: las actividades diseñadas por ellos, los documentos que ellos seleccionan y el texto escolar. Respecto a este último dispositivo –el texto escolar– el discurso de los docentes destaca que las finalidades de su utilización variarían según la disciplina escolar implicada, concediéndole más importancia en la disciplina de matemáticas. Igualmente, estos resultados evidencian que a pesar de que este dispositivo didáctico sea altamente apreciado y usado por los docentes encuestados, dicha utilización no guarda necesariamente relación con los objetivos didácticos que proponen los textos escolares.Palabras clave: Dispositivos didácticos de orden material, intervención educativa, prácticas docentes, educación primaria. Based on the concepts of educational intervention and teaching devices, this article outlines the use of teaching devices by elementary school teachers in Quebec. It explains how and why they are used and also summarizes the predominance of usage of the different devices according to the various subjects of the school curriculum. These findings are based on the partial results of two instruments: a questionnaire administered to 72 teachers from a Sherbrooke (Quebec, Canada) school board and individual interviews of seven teachers. This study allowed for the detailed analysis of the teachers discourse regarding teaching devices and more particularly textbooks.  The results extracted from the teacher’s discourse, showed that they basically used three types of devices: activities that they themselves had prepared, documents chosen by themselves and finally textbooks. Regarding the last device, the teacher’s discourse revealed that the ultimate aim of textbook usage varied according to the school subject, with mathematics being given the highest priority to textbooks. The results also showed that although this teaching device is greatly appreciated and used, its usage is not necessarily linked to the specific aims recommended by the textbooks.Keywords: Teaching devices, educational intervention, teaching practices, elementary school.
Implementação de um Sistema de Educação a Distância Mediatizado pela Internet
Authors: Ferreira Sergio A. , Cardoso Eduardo L.
Published: October 2023

A introdução da tecnologia nos sistemas de educação do ensino superior tem registado um crescimento elevado, nomeadamente no campo do ensino mediatizado pela Internet. Nos ensinos básicos e secundário, o ensino mediatizado pela Internet está ainda numa fase embrionária. A visão estratégica da tecnologia, a formação do capital humano, a consideração das características específicas da formação online, a preparação da organização para aceitar o ensino online e a avaliação das práticas, são fatores essenciais para a implementação eficaz destes novos ambientes de aprendizagem. Nesta investigação, recorreu-se ao estudo de caso do ensino recorrente dos 2.º e 3.º ciclos e ensino secundário, mediatizado pela Internet, como aproximação à temática das implicações da introdução da tecnologia, associada à implementação de um sistema de educação online a distância, no modelo de aprendizagem. O caso em análise é pioneiro em Portugal, na medida em que a EB 3/S Vitorino Nemésio, da Ilha Terceira, Açores, foi primeira escola portuguesa com ensino recorrente mediatizado, constituindo-se, por isso, um palco ideal para se compreender o modo de implementação de um sistema com estas características e identificar as implicações na organização dos cursos e no modelo de ensino e aprendizagem.Palabras clave: Ambiente de aprendizagem enriquecido pela tecnologia, construtivismo, ensino a distância, ensino online, estratégia, tutor online. The introduction of technology in the teaching of higher education systems has registered a high growth, specifically in the field of teaching mediated by the Internet. Basic and secundary education systems are still on an embrionary stage. The strategic vision of the technology, the formation of human capital, taking into account the specific characteristics of online training, organizing the acceptance of online teaching and its assessment practices, are essential factors for the effective implementation of these new learning environments. In this research, used the case study of recurrent education of the 2nd and 3rd cycles and secondary education, mediated by the Internet, as an approach to the subject of the implications of the introduction of technology, associated with the implementation of a system of online distance education, on the model of learning. The case analysis is a pioneer in Portugal, where the EB 3/s Vitorino Nemésio, from the third Island, Azores, was the first Portuguese school with recurrent education mediated, constituting, therefore, an ideal scenario to understand the mode of implementation of a system with these characteristics and identify the implications in the Organization of the courses and teaching and learning models.Keywords: Technology enriches the environment of learning, constructivism, distance education, education online, strategy, online tutor.
La Convivencia Escolar: clave en la predicción del Bullying
Authors: Ortega-Ruiz Rosario , Del Rey Rosario , Casas José A.
Published: October 2023

Un amplio repertorio de programas y buenas prácticas han evidenciado ser útiles para la prevención de los problemas de intimidación, acoso y en general malos tratos entre escolares, bullying en su versión inglesa. De entre ellos, el trabajo sobre el clima social general del centro educativo, que en muchas comunidades hispanas denominamos convivencia, está siendo considerado como uno de los pilares fundamentales para prevenir estos problemas. Sin embargo, poco sabemos sobre si hay algunos elementos de la convivencia más relevantes que otros y por tanto cuáles deben ser los objetivos prioritarios para la prevención del bullying. El trabajo que aquí se presenta ha explorado el valor predictivo de las dimensiones de la convivencia escolar ante la implicación en estos fenómenos. La Escala Convivencia Escolar (ECE) fue administrada a 7037 estudiantes (48.9% chicas) seleccionados aleatoriamente entre el alumnado de Educación Secundaria de Andalucía (España). Los resultados destacan la relevancia de las relaciones en el plano vertical y horizontal, particularmente la gestión que realiza el profesorado y los problemas de disruptividad e indisciplina. Los resultados son discutidos en orden a encontrar claves para la mejora de los proyectos educativos de optimización de la convivencia escolar y prevención del bullying.Palabras clave: Convivencia escolar, Bullying, Acoso entre iguales, Disruptividad, Indisciplina, Profesorado.A wide range of programs and practices have shown to be useful for preventing the problems of bullying, harassment and generally bullying in school. Of these, work on general social climate of the school, which in many Hispanic communities called convivencia, is being considered as one of the pillars to prevent these problems. However, it is not well known which elements of school coexistence (convivencia) are more relevant than others and therefore what should be the priorities for the prevention of bullying. This research explores the predictive value of the school coexistence dimensions at bullying. The Convivencia Escolar Scale was administered to 7037 students (48.9% girls) randomly selected from the students of Secondary Education in Andalusia (Spain). The results highlight the relevance of relationships in the vertical and horizontal plane. Particularly, are relevant teacher school life management and disruption and indiscipline problems. The results are discussed finding the keys to develop the educational projects to the school life improvement and bullying prevention.Keywords: Convivencia, School coexistence, Bullying, Disruption, Teachers.
Aplicación de un procedimiento para la optimización de la medida de la convivencia escolar
Authors: Caso Joaquín , Díaz Carlos , Chaparro Alicia
Published: October 2023

El presente estudio tuvo como propósito obtener una versión reducida del Cuestionario de Convivencia Escolar, mediante el uso de la metodología propuesta por Jornet, González-Such y Perales (2012) para la optimización de la medida de constructos complejos. Se describen los resultados obtenidos en cada una de las etapas propuestas, producto de la aplicación del Cuestionario de Convivencia Escolar a una muestra de 1259 estudiantes de educación secundaria en Baja California, México. La metodología se constituye de los siguientes procedimientos: (a) Exploración del comportamiento de los reactivos de la escala original; (b) Análisis de valores perdidos y decisiones sobre imputación; (c) Selección de reactivos a partir de su contribución a la confiabilidad de la escala; (d) Estimación del puntaje total de la versión reducida; (e) Exploración de la calidad de la versión reducida; y (f) Reducción y validación final del micro-instrumento. Los resultados destacan las propiedades psicométricas de la versión reducida del instrumento (k=31) cuyas dimensiones de Inclusión (k=12), Democracia (k= 9) y Paz (k=10), registran correlaciones del orden de .938, .932 y .932 con respecto a las dimensiones originales, con índices de consistencia interna y niveles de varianza explicada aceptables.Palabras clave: Medición, Convivencia escolar, Validez, Confiabilidad, Constructo.The present study was aimed to obtain a reduced version of School Coexistence Questionnaire, by using the methodology proposed by Jornet, Gonzalez-Such and Perales (2012 ) for optimizing complex constructs. Describes the results obtained in each of the steps proposed in the methodology for optimizing the measurement of complex constructs (Jornet, Gonzalez-Such and Perales, 2012), resulting from the application of the questionnaire to a sample of 1259 middle-school students in Baja California, Mexico. The methodology is made up of the following six phases: (a) Exploration of the items of the original scale, (b) Missing values analysis and imputation decisions, (c) items’ selection of from its contribution to the reliability of scale, (d) Estimation of the total score of the reduced version (e) Exploration of the quality of the reduced version, and (f) Reduction and final validation of the micro-instrument. The results highlight the psychometric properties of the short version of the instrument (k = 31) with dimensions of Inclusion (k = 12) Democracy (k = 9) and Peace (k = 10), reported correlations of .938 .932 and .932 ,with respect to the original dimensions.¸ and internal consistency indices and acceptable levels of variance explained.Keywords: Measurement, School coexistence, Validity, Reliability, Construct.
La participación de las familias y de otros miembros de la comunidad como estrategia de éxito en las escuelas
Authors: Arostegui Igone , Darretxe Leire , Beloki Nekane
Published: October 2023

En la actual Sociedad de la Información y el Conocimiento, la escuela tiene la necesidad de proporcionar los mejores medios para asegurar el aprendizaje de todo el alumnado, garantizando la superación de las desigualdades y la mejora de los resultados académicos. En este sentido, existen evidencias científicas que demuestran la importancia de la participación de las familias y otros miembros de la comunidad como estrategia de éxito en las escuelas. Una de las referencias fundamentales que se destacan en este artículo es el proyecto Includ-ed, el cual subraya diferentes tipos de participación de la comunidad y su influencia en el aprendizaje y en el rendimiento escolar. Las tres formas de participación que tienen mayor relación con el éxito son la Decisiva, Evaluativa y Educativa. De esas formas de participación existen evidencias de, al menos, cuatro actuaciones concretas de participación de la familia y la comunidad basadas en un diálogo igualitario en centros educativos que favorecen la mejora de resultados. Para concluir el artículo, se presentan acciones concretas que favorecen y potencian dicha participación.Palabras claves: Aprendizaje, Dialógico, Participación de las familias, Implicación de la comunidad, Éxito educativo.In nowadays Society of Information and Knowledge, the school needs to provide the best means that ensure learning for all students, overcoming inequalities and guaranteeing the improvement of academic achievement. In this sense, there is scientific evidence showing the importance of the participation of families and other community members as a strategy for success at school. One of the fundamental references stressed in this article is the Include-ed project, which underlines different types of community participation and their influence on learning and school performance. The three kinds of participation most related with success are Decisive, Evaluative and Educative. Among these ways of participation, there is evidence of at least four specific interventions involving the participation of families and community based on egalitarian dialogue which improved the educational success. To conclude this article, we show some specific actions that help and strengthen that participation.Keywords: Learning, Dialogic, family participation, Community involvement, Educational success
Evaluating the Efficiency of the Tube Turbulent Apparatus Influence on Kinetics of Polymer Production Processes
Authors: Miftakhov Eldar N. , Mustafina Sofya I. , Morozkin Nikolay D. , Nasyrov Ildus Sh. , Mustafina Svetlana A.
Published: October 2023

Introduction. Because of high demand for polymer products, there are constantly modernized the technological aspects of their production, a huge share of which is based on the use of microheterogeneous catalytic systems. Physicochemical properties of polymer products can be improved through targeted hydrodynamic effect in turbulent flows. The study of physicochemical patterns of polymer product synthesis in the presence of modified catalytic systems is of great interest.
Aim of the Article. The article is aimed at evaluating the efficiency of hydrodynamic influence in turbulent flows on the type of catalyst heterogeneity and the kinetics of polymer production processes.
Materials and Methods. In the study of polymer synthesis processes, there is used a simulation approach to the system model description that is based on the idea of reproducing various scenarios of uninterrupted production and conducting the necessary empirical analysis. Parallel programming and cloud computing technologies are used in simulation modeling to increase computational speed.
Results. A methodology for solving inverse problems has been developed to determine the influence of external factors on the kinetic activity and heterogeneity of active centers on the basis of known physicochemical information. The use of simulation modeling with the application of cloud computing technology makes it possible to unambiguously determine the type of kinetic heterogeneity in the conditions of averaging the reactive capacity of active centers.
Discussion and Conclusion. Approbation of the new simulation approach to the solution of the inverse problem allowed evaluating the efficiency of the influence of the tube turbulent apparatus on the kinetics of producing polyisoprene in the presence of titanium catalyst and identifying the presence of two active centers: type ATi − lnM = 13.4, type BTi − lnM = 11.7, while the proportion of active centers type ATi is 0.91; type BTi – 0.09. Based on the data obtained, it becomes possible to formulate and solve inverse problems of identifying kinetic parameters for further model description of the system.
Sustancia, sujeto y ser humano: un conflicto cartesiano
Authors: Llinàs-Begon Joan-Lluís
Published: October 2023

Este artículo aborda la cuestión del ser humano en Descartes, entendido como unión de cuerpo y alma. Tras recorrer La pensée passive de Descartes de Marion, se propone la necesidad de reformular el concepto de sustancia, adecuándolo a la nueva filosofía, y se concluye que lo principal para Descartes consiste en presentar una concepción del ser humano acorde con la nueva modernidad científica y filosófica, y que se sitúe, también, dentro de la ortodoxia religiosa.
Descartes antivitalista
Authors: Monroy-Nasr Zuraya
Published: October 2023

La concepción dualista de Descartes expulsó lo incorpóreo de la materia y ha sido mal entendida durante siglos. Este artículo inicia reflexionando acerca de la importancia del materialismo para la ciencia. Enseguida, se examinan argumentos de la doctrina dualista relativos a la física, su materialismo y mecanicismo. Finalmente, se considera, desde la perspectiva de la unión, la biología humana, disciplina con características peculiares, dado que su objeto no es un ser meramente corpóreo, sino entremezclado.
Extension of a Zero-Dimensional Mixing-Controlled Combustion Model for the Development of a NOx–Free System Based on the Oxy-Combustion Concept
Authors: Serrano José R. , López J. Javier , Martín Jaime , Bracho Gabriela
Published: October 2023

Oxy-combustion is a promising concept to achieve an extremely clean combustion, independently of the fuel type, because, on the one hand, it is a NOx-free combustion and, on the other hand, the CO2 produced during combustion can be easily captured once the water vapour is removed from the exhaust gases stream, consequently allowing also carbon neutral operation. An existing zero-dimensional (0D), mixing-controlled combustion model, developed for a standard diesel combustion scenario, has been adapted to the oxy-fuel combustion scenario. Initially, the model over-predicted the heat release at the end of the combustion process. The main model adaptation was to modify the relationship between the average YO2 and the effective YO2 (i.e. the one of the charge actually entrained by the spray), to be consistent with the significant increase in compression ratio needed in the oxy-fuel context. As a result, a model able to correctly predict the combustion behaviour at any operating condition has been obtained, which finally represents a very suitable tool to assist in the concept development.
Hydrogen Use in a Dual-Fuel Compression Ignition Engine with Alternative Biofuels
Authors: Rodríguez-Fernández José , Ramos Ángel , Domínguez Víctor M. , Giménez Blanca , Reyes Miriam , Hernández Juan J.
Published: October 2023

Recent progress has been made towards decarbonisation of transport, which accounts for one quarter of global carbon dioxide emissions. For the short to medium term, new European Union (EU) and national energy and climate plans agree on a strategy based on the combination of increasing shares of electric vehicles with the promotion of sustainable fuels, especially if produced from residual feedstock and routes with low or zero net carbon emission. Hydrogen stands out among these fuels for its unique properties. This work analyses the potential of using hydrogen in a dual-fuel, compression ignition (CI) engine running with three diesel-like fuels (conventional fossil diesel, advanced biodiesel (BD) and hydrotreated vegetable oil (HVO)) and different hydrogen energy substitution ratios. The results were confronted with conventional diesel operation, revealing that dual-fuel combustion with hydrogen demands higher exhaust gas recirculation (EGR) rates and more advance combustion, leading to a remarked reduction of NOx emission at the expense of a penalty in energy consumption due mainly to unburnt hydrogen and wall heat losses. Unreacted hydrogen was ameliorated at high load. At low load, the use of BD dual combustion permitted higher hydrogen substitution ratios and higher efficiencies than diesel and HVO.
TECHNO-ENVIRONMENTAL ASSESSMENT OF ELECTRIFIED ROAD IN LAEM CHABANG PORT, THAILAND
Authors: Thanasrivanitchai Sirin , Vorarat Suparatchai , Phdungsilp Aumnad
Published: October 2023

Increased awareness of decarbonization and high fuel prices have induced a need for a wider deployment of alternative energy sources. Battery-powered electric trucks using an electrified road system offer a promising solution. This paper aims to evaluate the fuel consumption and environmental benefits of a 6 km road in Laem Chabang Port, Thailand, with a prototype system based on conductive charging from below. Battery capacity penetrations were designed for 1258 trucks traveling on weekdays. The annual electricity demand reached 1.608 TWh, and the flexible demand reached 1.65 TWh. The input was Thailand's standard electricity, with one 50 kVA power substation per 0.0016 km2 and a 22 kV/400-230 V voltage system. Penetration required a capacity of 525 kWh. The findings indicate that fuel consumption was 592.43 TWh, and CO2 emissions were 51.63 MtCO2 annually. The electrified road system was evaluated with time series, fixed-effect, and tobit regressions. The time series analysis revealed that CO2 emissions would be nearly zero by 2060, with an annual 4% increase in Laem Chabang's gross domestic product. A fixed-effect analysis signified the findings with Thailand's recent potential, whereas the tobit regression represented the influence of possible changes. These regressions demonstrated that variations in revenue, oil resources, openness to the sea, and political stability significantly affected CO2 emissions, although there was no change in the implementation of the electrified road system.
Comparison of Malondialdehyde Levels among Patients with Sandblasted Acid-Etched and Anodized Surface Dental Implants: A Prospective Clinical Study
Authors: Rajasekar Arvina , Varghese Sheeja S.
Published: October 2023

Inflammation that occur as a part of body's response to implant-tissue contact can result in oxidative stress. Therefore, exploring the oxidative stress around different surface treated dental implants is essential to improve the performance of implants. The purpose of this study was to detect and measure the level of malondialdehyde (MDA), oxidative stress marker among patients with sandblasted acid-etched and anodized surface dental implants. In this prospective clinical study, 78 patients who had undergone implant placement for missing single posterior tooth in mandible using sandblasted acid-etched and anodized surface dental implants during August 2019 - December 2019 were enrolled according to strict inclusion and exclusion criteria and were categorized into Group 1: SLA (n = 27), Group 2: SLActive (n = 26), Group 3: TiUnite (n = 25) based on the surface modification of the implants. Peri-implant crevicular fluid (PICF) was collected and MDA was quantified using ELISA kit at 3 months and 1 year. Statistical analysis was performed using one-way ANOVA, followed by Tukey's HSD post hoc. For intragroup comparison, paired t-test was used. MDA levels in group 3 implants was significantly higher than groups 1 and 2 (P ≤ 0.05). On pairwise comparison, there was a statistically significant difference between the groups at baseline (P ≤ 0.05) and 1-year follow-up (P ≤ 0.05). Intragroup comparison showed that there was a statistically significant difference from baseline in all the three groups (P ≤ 0.05). MDA level in peri-implant crevicular fluid was high around TiUnite dental implant as compared to SLA and SLActive implants.
Production of Hydrogen Molecule from Methane Molecule Amplified with Excitation of Anti-Symmetric Modes of Vibration
Authors: ERDOĞAN Sinan
Published: October 2023

Some factors, such as pressure and temperature, affect the rate of chemical reactions. In addition, the activation energy barrier must be overcome for the reaction to be initiated. It can be preferred to overcome this barrier by using catalysts and preheating. The catalyst ensures that it obtains the energy to react quickly by transferring it to the reactants. Similarly, the translational, vibrational, and rotational energy levels of reactants can be increased by preheating. According to the kinetic molecular theory of gases, preheating increases the kinetic energies of the gases and the speed of their collision, so the reaction takes place faster. This study theoretically investigates possible reactions of methane that can occur with the effect of only vibrational energy levels. The vibrational excitation of the molecules affects the reaction rates, and the activation barrier is overcome with lower energies. Using laser-based techniques makes the excitation of well-defined vibrational modes possible. This study investigated inelastic collisions of a methane molecule with well-characterized energy levels in infrared spectroscopy with some gases and the vibrational energy transfers that occur in these collisions. The methane molecule is the simplest form of a molecular structure consisting of more than three atoms of hydrogen atoms, which play an essential role in combustion chemistry. It shows that C⸺H stretch excitation increases the reaction rate of methane (CH4) molecules.
Ergonomic Risk Assessment in the Forest Products Industry
Authors: YILMAZ Merve , ÜNVER Muharrem
Published: October 2023

With the advancement of technology, the pressure on personnel in corporate operations has been reduced and productivity has increased. However, many industries continue to profit from labor. MSD can develop as a result of poor working conditions and repetitive movements. This research was carried out in a forest products enterprise with two facilities in Western Black Sea Region. The company produces construction timber using Fir and Pine as the base material. First, the demographic information of the field workers was obtained, then the musculoskeletal diseases of the local parts of the body were examined by using the Cornell (CMDQ) questionnaire. In the second step, REBA analysis was performed independently for the workstations determined in the company. According to the CMDQ study, employees reported the most strain on the lower back, back, and right wrist. It was determined that the most discomfort was in the lumbar region (35.90%). Again, according to the pain felt, it was seen that the most obstacles to work were caused by the waist, right upper leg and back. Scores overlap according to the common body regions evaluated in the Cornell and REBA analysis.
Roofs and Grids in Postwar Japanese Architecture: Excision, Sublation, and Layering of the Symbolic
Authors: Iisaka Maki
Published: October 2023

The role and significance of tradition in modern architectural practices was the subject of much public debate in Japan during the post–World War II period. An analysis of built work of the 1950s and 60s reveals, however, a much more complex set of responses than what these discussions might suggest. This paper uses the conceptual categories of roof and grid to uncover the radical divergences in attitude towards tradition in the works of Kenzō Tange, Seiichi Shirai, and Tōgo Murano as these architects negotiated a transition away from earlier mimetic modes of representation towards design methodologies less hampered by formal exigencies. Through the study of several buildings I show how roof and grid figure in distinct ways at the various levels of iconicity, symbolism, and ornamentation depending on the disciplinary vision of each of the three architects. The analysis reveals fundamental differences in the conception of architectural experience while at the same time underscoring a shared acknowledgment of the historical nature of culture and a shared desire to transcend the duality between modernity and tradition itself.
Does the Mind Suffer? Living Bodies, Brain, and Pain in Alfanus of Salerno’s Premnon physicon and in Constantine the African’s Pantegni
Authors: Ortúzar Escudero María José
Published: October 2023

The 11th century translations Premnon physicon by Alfanus of Salerno and Pantegni by Constantine the African offered to the Latin West two systematic descriptions of the human bodily architecture and its functioning. Both works highlight the relationship between the material constitution and teleological principles at play in the living body. This paper explores the working of one of these principles, the ‘animal power’, and its principal organ, the brain, within the living body. In particular, it examines the account of pain within these systems, underscoring its relationship to sensation: pain is conceived as an affection of the soul, and as a physical-material change in the sense organ, which is connected with the brain in its activity.
Buck Institute Morphology H & E staining protocol v3
Authors: Breslin Stella
Published: October 2023

Histological Stain for FFPE slides RESULTS: Nuclei-blue; Cytoplasm, red blood cells and connective tissue-shades of pink
UPitt TriState SenNet TMC Heart Procurement v1
Authors: Sembrat John , Bueno Marta , Morris Alison , not provided koenigshoffm , Eickelberg Oliver
Published: October 2023

This document outlines the request for specimen procurement before arrival at the TriState SenNet TMC Biospecimen Core at the University of Pittsburgh, as part of the Cellular Senescence Network Program (SenNet).
Effective Target Capture/Enrichment of Respiratory Viruses from Wastewater v1
Authors: Roppolo Brazell Lauren , not provided wtaylo , Aboufoul Lolo , Ferdous Jannatul , A Schlueter Jessica , Gibas Cynthia
Published: October 2023

Human respiratory viruses (HRVs) are highly communicable viral pathogens that present varying degrees of illness in infected individuals. The advent of the COVID-19 pandemic demonstrated the utility of wastewater-based epidemiology (WBE) methods that bypassed traditional clinical testing for the virus. This method yielded powerful results, informing communities of potential outbreaks and allowing them to make informed decisions for the health and well-being of their community. The success of WBE can be employed to screen wastewater for other HRVs. Herein we establish a protocol that prepares viral RNA from extracted wastewater for use in a HRV target capture/enrichment sequencing assay. This protocol addresses the unique challenge of low viral load input for library preparation by randomly priming and non-specifically amplifying viral RNA. By then enriching only the sequences of interest in subsequent target capture/hybridization reactions, this method conserves sequencing resources and results in high-quality sequence information. Following downstream bioinformatics analyses, this sequence information can be used to help communities take appropriate action in mitigating the negative effects of HRVs.
UPitt TriState SenNet TMC Total RNA isolation & quality analysis for bulk RNA-seq v1
Authors: Xue Jianmin , Bueno Marta , Eickelberg Oliver
Published: October 2023

Bulk RNA sequencing (RNA-seq) is a quantitative method used to interrogate the transcriptome of a biological sample at a given point in time. This protocol describes a method for the extraction and quality assessment of total RNA from pulverized tissue.
UPitt TriState SenNet TMC Cryopreserved Tissue Grinding v1
Authors: Bueno Marta
Published: October 2023

This document outlines the tissue pulverization protocol of lung and heart specimens at the TriState SenNet TMC Biospecimen Core at the University of Pittsburgh, as part of the Cellular Senescence Network Program (SenNet).
Dual-Choice Chamber Assay v1
Authors: L. Kendziorski Natalie
Published: October 2023

The protocol describes a laboratory assay to test the repellency of anessential oil using a modified dual-choice chamber assay system. The assayassesses the movement of the mosquito away from or towards the essential oil.The modified system detects repellency. Mosquito responses to repellent compounds can be evaluated in a laboratory dual-choice chamber system.
The efficacy and safety of autologous activated platelet-rich plasma therapy as adjuvant treatment of atopic dermatitis in pregnant woman
Authors: Karina Karina , Mahardika Anggara , Krisandi Grady , Rosadi Imam , Purwoko Ratna , Listyo Astuti Sarah , Nazma Diani , Martin Christoffel Louis , Siswanto Meliana , Albert Biben Johannes , Ekaputri Krista , Ambar Pamungkas Kuswan , P. Sibuea Tommy , Maryam Azza
Published: October 2023

Introduction: Atopic dermatitis (AD) is a chronic relapsing inflammatory skin disorder which involves skin barrier and immune dysregulation. The management of AD involves the use of moisturizers and immunosuppressant which are only used for temporary symptom relief and may potentially harm the fetal growth. Autologous activated platelet-rich plasma (aaPRP) is a potential adjuvant treatment for symptom control in pregnant AD patient. This report examines a case of a pregnant patient with AD treated with aaPRP and the monitoring of fetal growth until birth.
Case Report: A 37-year-old pregnant patient with a history of AD when in contact with latex or consumption of dairy products came to Hayandra Clinic. As she had been working as anesthesiologist continuously in contact with latex gloves, she underwent routine aaPRP therapy for 3 years and had 15 aaPRP treatments over the course of her pregnancy. The patient had lesser lesions when AD was induced, no exacerbation of symptoms during pregnancy, and the baby was healthy during pregnancy to birth.
Conclusion: The use of aaPRP therapy for the management of AD may be indicated as it controls the symptoms yet is safe for the patient during pregnancy. There was also no harm effect showing on the fetal development. A larger study such as randomized controlled trial is required to evaluate our findings.