bluuebunny/crossref_metadata_2025_split huggingface dataset:
Tuning Thermoelectric Properties of Bi2Ca2Co2Oy through K doping and Laser Floating Zone processing
Authors: Özçelik Can , Depci Tolga , Gürsul Mehmet , Çetin Gizem , Özçelik Bekir , Torres Miguel A. , Madre Maria A. , Sotelo Andres 
Published: June 2021

Abstract
In the present study, thermoelectric Bi2Ca2 − xKxCo2Oy ceramic materials (x = 0.0, 0.05, 0.075, 0.10, and 0.125) in different forms (called bulk, as-grown and annealed fibers) have been manufactured via a classical solid-state method and textured using the laser floating zone (LFZ) technique. The identification and characteristics of undoped and doped samples were determined by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD patterns of all samples have shown great similarity, and the major peaks can be assigned to the Bi2Sr2Co2Oy thermoelectric phase, independently of the processing technique and K-doping. SEM-EDS have indicated the randomly oriented plate like grains of different sizes in bulk sample, evolving to longer and well-oriented grain structure through K-doping and LFZ. Because of the incongruent melting properties of compound, the high number of secondary phases formed in the as-grown samples. In order to reduce it, an annealing and K-doping process have been applied. The microstructural evolution is reflected on the electrical properties, and the lowest resistivity values are found in the annealed K-doped fibers. Seebeck coefficient is positive in all cases, pointing out to p-type conduction mechanism. These modifications led to PF values up to 0.162 mW/K2m, obtained in 0.10 K-doped annealed fibers at 650 oC.
Size and shape controlled synthesis of CdS and ZnS nanoparticles and their applications in photodegradation of organic dyes
Authors: Kaboudin Babak , Kyomarzi Meysam , Kazemi Foad 
Published: June 2021

Abstract
Different size and shapes of CdS and ZnS nanoparticles have been synthesized, characterized and studied for photodegradation of organic dyes. In this study, effect of alkyl chain of dithiocarbamates was investigated for the size and shaped controlled CdS and ZnS nanoparticles. A thorough structural characterization of nanoparticles has been carried out by means of transmission electron microscopy (TEM), scanning electron microscopy (SEM) images, EDS, XRD, and UV/vis spectroscopy. Results showed that the alkyl chain in dithiocarbamate complexes of zinc and cadmium systems plays a significant role in the final morphology of the CdS and ZnS nanoparticles. A photocatalytic degradation of UV-irradiated Methylene Blue solutions in the presence of ZnS and CdS nanoparticles was studied in order to examine the nanoparticles influence on photodegradation rates.
Modeling 65 Years of Land Subsidence in California’s San Joaquin Valley
Authors: Lees Matthew , Knight Rosemary , Smith Ryan 
Published: June 2021

Abstract
[copied directly from first paragraph of paper]

Land subsidence, caused by groundwater extraction and subsequent subsurface compaction, is an issue of global concern. Since the 1920s, there have been numerous periods of subsidence in California’s San Joaquin Valley leading to widespread sinking of the land surface which has locally exceeded 9 m. The most recent period of severe subsidence, which was triggered by the 2012-15 drought, is now causing damage which threatens the long-term viability of critical water distribution infrastructure in the Valley. However, there is neither a continuous monitoring record of the subsidence nor high-quality records of the hydrologic head changes in the subsurface which have caused the subsidence, making it impossible to understand, and thus mitigate, the subsidence. Here, we leverage subsidence and hydraulic head data from a variety of sources to create and validate a one-dimensional model of subsurface compaction and subsidence over the 65 years between 1952-2017. This model, which simulated up to 7.5 m of subsidence since 1952, provides a complete record of subsidence in our study region by filling crucial gaps in the observed record. Our model reveals the long-term processes causing subsidence, which operated over decades-to-centuries and caused exceptionally high rates of baseline subsidence in 2017, resulting in a critical risk of future subsidence. This risk is exacerbated as the Valley moves into drought conditions again in Spring 2021. We demonstrated an approach which provided the understanding of subsidence in the Valley needed to directly inform sustainable groundwater management, and which is applicable in subsiding regions around the World.
The Research Behaviour and Dynamics of Science in Periods of Crisis: Case Study of COVID-19 Leading to Discovery of mRNA Vaccines
Authors: Coccia Mario 
Published: June 2021

Abstract
No studies to date allow us to explain the dynamics of science and research behavior in the presence of crisis to support research policy for allocating resources with effectiveness and planning scientific research to provide solutions directed to positive societal impact. The main goal of this study is to explain the research behavior and dynamics of science during a global crisis, focusing on Coronavirus Disease 2019 (COVID-19) that has generated a pandemic crisis worldwide. Results suggest critical characteristics of the research behavior and dynamics of science in global crisis, namely: evolution of research field is driven by new and consequential environmental threats in human society to be solved in a short run; evolution of crisis-driven research fields field is pulled by few (parent) disciplines (3–5) that generate more than 80% of documents; the most active institutions in crisis-driven studies are mainly academic institutions localized in advanced countries; main funding institutions in scientific production of crisis-driven research fields are public organizations of rich nations and global charitable foundations; the most productive countries of crisis-driven research fields are nations direct to support their global leadership; moreover, research behavior of crisis-driven research fields is mainly based on scientific publications having open access for a widespread diffusion of results for a higher social impact; finally, scientific production of crisis-driven research field has a higher density of short communications with letters and notes to systematize quickly findings, publish and spread them. Overall, then, this study provides critical characteristics of research behavior and dynamics of science in global crises that could be of benefit to policymakers to design science policies and plan research programmes to generate fruitful science advances and technological breakthroughs directed to reduce negative effects of crisis on socioeconomic systems and improve wellbeing of people.
Teaching job performance and its impact on the Synthetic Index of Educational Quality (ISCE) in the Municipality of Cucuta during the 2016-2019 period.
Authors: Pérez-Soto Nancy , Hernández-Melo Carolina , Marulanda-Ascanio Carolina 
Published: June 2021

The objective of this work is to determine the teaching work performance and its incidence in improving the synthetic index of educational quality in the municipality of Cucuta during the period 2016-2019.
The current Teaching Professionalization Statute has been characterized as one of the most important elements in education in recent years, being the evaluation and teaching quality, transversal aspects to specifically define the improvement of the ISCE as a public policy in the city of Cucuta. Through an analytical study of Decree 1278, it is possible to glimpse that it contains specific elements that allow to delimit with great success an educational quality standard in relation to the professionalization of the teacher, being the evaluation module the appropriate mechanism to achieve a clearer view of the state of the quality of the Educational Institution where the teacher works. Likewise, it is considered that the teacher is suitable as long as he or she passes the performance evaluation sufficiently, however, it should be appreciated that it is important that this evaluation allows evidence of a proper quality standard that is reflected in the ISCE of the Institution.
Based on the information collection instruments used, very appropriate elements for the investigation can be extracted; from these it was possible to recognize several aspects. The surveys carried out make it possible to establish that ultimately job performance directly affects the improvement of the Synthetic Index of Educational Quality, Also, in accordance with the information mechanisms obtained, specifically speaking of the databases provided by the ETC (Entity Certified in Education) it is possible to identify that the educational institutions of Cucuta have obtained a significant development compared to previous years. Regarding the performance of the evaluation system, it was evidenced that the process is indeed adequate to measure the behavioral and functional elements; however, it is appreciated that special attention is required to the agreements and commitments at the beginning of the school year in order to define the goals and purposes of the Educational Institution. In addition to the above, it is possible to glimpse with a wide margin of success that the classroom teachers evaluated during the period between 2016 and 2019 have managed to gradually improve, which implies that the measurement instruments can produce good results in direct correspondence with development institutional established by the ISCE in each of the official and private educational establishments in Cucuta.
Una escuela para los niños migrantes climáticos: desafíos para la educación en tiempos de cambio climático
Authors: Núñez-Rodríguez José De Jesús 
Published: June 2021

El cambio climático es una realidad presente y convoca con urgencia a repensar la educación de los niños y jóvenes dentro de escenarios cargados de altas dosis de incertidumbre y vulnerabilidad ambiental, social y económica. La escuela, en su sentido amplio, está llamada a vehicular las transformaciones curriculares y organizativas enfocadas a integrar a las poblaciones sujetas a las presiones climáticas, y territorialmente forzadas a movilizarse en la búsqueda de oportunidades para su subsistencia, a objeto de garantizar una educación pertinente para los migrantes climáticos. Este segmento importante de la sociedad es invisible en las políticas y programas educativos actuales en la mayoría de los países vulnerables a los factores medioambientales. El propósito de este artículo es reflexionar sobre la necesidad de repensar la educación para atender a los miles de niños y jóvenes migrantes por los efectos del cambio climático. El Observatorio de los Desplazamientos Internos (IDMC) estimó que en el año 2017 alrededor de 30,6 millones de nuevos desplazamientos fueron impulsados por desastres naturales en unos 200 países, procedentes de Asia, el Pacifico y las Américas. Desde regiones con alta vulnerabilidad ambiental y social las familias inician un recorrido dentro de sus países, y fuera de ellos, en búsqueda de mejores climas, suelos, alimentos, agua y condiciones sanitarias. En este ensayo se analiza las implicaciones del clima futuro en el funcionamiento de la escuela y comunidades vulnerables; se caracteriza el fenómeno de la migración de niños y jóvenes en edad escolar y sus repercusiones en la prosecución y exclusión escolar y, como corolario; se proponen algunas estrategias para adaptar la escuela a un escenario de migraciones climáticas futuras.
Las Tecnologías Digitales: El Futuro del Comercio Internacional
Authors: Avendaño Castro William Rodrigo , Manosalva Barragán Jakeline 
Published: June 2021

La presente investigación tiene como prioridad demostrar la importancia de las tecnologías digitales en el futuro del Comercio Internacional y como influencian positiva o negativamente en la economía de las naciones. De la misma manera, se analiza las implicaciones del mundo electrónico en la oferta y demanda de bienes, servicios y productos, debido a que su consolidación a nivel mundial como tendencia de comercializar a través de lo digital. Para la realización de la investigación se ha tenido en cuenta artículos científicos con relación al Comercio Internacional y a las innovaciones en tecnologías digitales; a partir de la información recolectada en el presente estudio, se ha determinado que las empresas requieren actualizarse a las nuevas tecnologías digitales, con la finalidad de responder satisfactoriamente a las necesidades de las personas.
Reshaping Strategies of University Libraries in Ghana towards Sustainable Development Goal 4
Authors: Owusu-Ansah Samuel 
Published: June 2021

Ghana has a large and complex higher learning educational system, with an increasing enrolment each year. Given the global significance of the Sustainable Development Goals, this study aims to assess the roles of Ghanaian university libraries in achieving Sustainable Development Goal 4. The study applied a qualitative research approach to examine the strategies deployed by libraries in Ghana and the purposive sampling technique was used to select interviewees. The findings indicate that university libraries in Ghana are at the forefront of providing information and library services to support capacity building. These libraries have ensured inclusiveness to quality education by providing equitable library services, information access, and unbiased information services to all clients without discrimination. The study identified poor public perceptions of these libraries, inadequate funding, and emerging technologies as challenges facing libraries in Ghana. It was revealed that the areas in which information and library services have contributed to Sustainable Development Goal 4 in Ghana are (1) teaching and learning, (2) cooperation and collaboration among stakeholders, (3) promoting sustainable information practices among stakeholders, and (4) information in specific (specialised) contexts. The study concludes that university libraries in Ghana have created an enabling environment, making them increasingly relevant to national and global development. Strategies deployed by these libraries towards Sustainable Development Goal 4 include creating awareness, conducting cutting-edge research, sustaining lifelong learning and quality education, and providing high quality teaching and learning.
Nivel de satisfacción estudiantil sobre el empleo del aula invertida en los posgrados en administración
Authors: Cardoso Espinosa Edgar Oliver 
Published: June 2021

El objetivo de la investigación fue valorar la formación de la capacidad de la comunicación matemática en el alumnado de los posgrados en administración mediante el aula invertida. La metodología del estudio fue una investigación cuantitativa con un alcance descriptivo con un diseño cuasiexperimental. El instrumento empleado fue un cuestionario basado en una escala tipo Likert. Los principales resultados fueron que la metodología del aula invertida favorece el desarrollo de la comunicación matemática porque emplea actividades de aprendizaje que propician en forma integrada el razonamiento, la argumentación, el uso de representaciones, el diseño de estrategia de solución y la interpretación de los resultados mediante el trabajo colaborativo y el empleo de recursos digitales. Las conclusiones del estudio fueron la utilidad y relevancia de la metodología del aula invertida como una estrategia que favorece la comunicación matemática en el alumnado de los posgrados en administración mediante su participación activa en un ambiente de trabajo colaborativo con la guía del profesorado como facilitador lo cual propicia la integración de lo aprendido en el desempeño laboral.
Racionalidad, Neoinstitucionalismo y Teoría de las Ambigüedades: alcances y limites en el Análisis Político
Authors: Reza Granados Rebeca , Asencio López Noemí 
Published: June 2021

El presente artículo, tiene como objeto realizar un mapeo de tres perspectivas del neo-institucionalismo y una correspondiente a la teoría de las ambigüedades botes de basura (March y Olsen,1993) y los sistemas flojamente acoplados. En primer lugar, abordamos el enfoque económico del neo-institucionalismo, retomando dos perspectivas: 1) Elección racional, basada en la catalaxia ( Buchanan y Tullock, 2004 ), donde se asume la racionalidad estratégica de los individuos y; 2) el Neo-institucionalismo Económico (NIE), el cual hace una clara división entre lo que es una institución[1] – reglas formales e informales del “juego” – y, una organización –grupo de individuos que diseñan, cumplen y hacen cumplir las reglas del juego- (North, 1993); sin embargo, esta distinción se diluye cuando se realiza una investigación bajo la perspectiva del 3) Neoinstitucionalismo Político (NIP), el cual asume la heterogeneidad de objetivos, la lucha de poder entre líderes de coaliciones distributivas en la arena política (politic’s) y; 4) la teoría de la ambigüedades, mediante el análisis del enfoque denominado “sistemas flojamente acoplados” y “cubo de basura” –este último concepto también es parte de la construcción teórica del NIP- propios de los Estudios Organizacionales , en donde se rescatan las problemáticas para ofrecer soluciones, analizando las rutinas organizacionales, y los elementos mencionados anteriormente, además de la lucha de fuerzas por el poder al interior y entre las coaliciones distributivas. Es fundamental señalar que estos tres últimos enfoques asumen que los individuos cuentan con una racionalidad limitada.

[1] Se les denomina coloquialmente las reglas del juego; cuando son formales se les identifica como aquellas reglas que están escritas; cuando son informales, son las que emanan de la costumbre, cultura, etc. (North, 1993)
Asociación entre índices nutricionales y días de ventilación mecánica en pacientes geriátricos críticamente enfermos
Authors: Martinez Palma Luis Alberto , Enríquez Santos Diana , Alberti Minutti Paolo 
Published: June 2021

Objetivo: Encontrar una asociación entre las puntuaciones GNRI y CONUT al ingreso y la presencia de ventilación mecánica prolongada en adultos mayores críticamente enfermos.
Diseño y metodología: Se llevó a cabo un estudio transversal, retrospectivo, en la Unidad de Cuidados Intensivos “Gastón Segovia Mejía” del Centro Médico Dalinde, entre marzo de 2019 y febrero de 2020, se seleccionaron a todos los sujetos mayores de 60 años que requirieron ventilación mecánica al ingreso y por al menos 72 horas, se excluyeron del estudio a pacientes con diagnóstico de neumopatía preexistente. Se formaron dos grupos: Grupo A con menos de 7 días de ventilación mecánica, y Grupo B con más de 7 días de ventilación, se registraron variables demográficas, antropométricas, diagnósticos de ingreso, días de estancia en la UCI, servicio de procedencia, comorbilidades preexistentes, para determinar la gravedad y mortalidad en la UCI se utilizaron las escalas de riesgo APACHE II, SOFA y escalas GNRI y CONUT para valorar el estado nutricional al ingreso.
Resultados: Un total de 68 sujetos cumplieron con los criterios de inclusión, la edad promedio de este estudio fue de 81 años RIQ [72-86], y 51.5% fueron del sexo masculino, el puntaje de APACHE II fue 22 RIQ [14-26] y SOFA 8 RIQ [5-9], La mediana de días de estancia en la Unidad de Cuidados Intensivos en el grupo A fue de 8 días y 20 días para el grupo de más de 7 días de ventilación mecánica, El grupo A presentó un puntaje de GNRI 90 [74-97], mientras que el grupo B una mediana de 84 puntos de GNRI [75-93] p 0.432, en contraste la escala de CONUT para el grupo A 8 [6-9] y el grupo B 9 [7-11] p 0.135
Limitaciones: el tipo de estudio retrospectivo y el número de muestra limitan la interpretación de los resultados
Originalidad o valor de la investigación: El presente estudio contribuye al conocimiento de la evolución de los pacientes geriátricos ingresados a la Unidad de Cuidados Intensivos que son sometidos a ventilación mecánica y su relación con el grado de desnutrición.
Conclusiones: La nutrición es un factor en la evolución y recuperación de los pacientes geriátricos en estado crítico, la ventilación mecánica es una medida de soporte que debe ser utilizada como tal en los adultos mayores, aunque requiere considerar las características del sujeto, las comorbilidades y la patología que lo llevó a requerir asistencia mecánica ventilatoria.
Resenha de Translation, Ideology and Gender
Authors: Martins Lia 
Published: June 2021

Publicado em 2017 pela Cambridge Scholars Publishing, o livro Translation, Ideology and Gendertem origem no projeto de pesquisa chamado TRACEgencsi (Traducción y Censura en la Representación del Género), financiado pelo Ministério da Inovação e Educação da Espanha e conduzido por um grupo de acadêmicos ”“ e acadêmicas, sobretudo ”“ da Universidade de Cantabria e da Universidade de León. Como fruto do projeto, foi realizada em 2015 na cidade de Santander, Espanha, a Primeira Conferência Internacional “Translation, Ideology and Gender”, com o objetivo de investigar de que maneiras e sob que aspectos a representação de gênero pode ser filtrada por relações de poder e ideologia na tradução de textos científicos e literários. A partir das comunicações apresentadas na conferência, somadas aos estudos enviados em resposta Ã chamada de trabalhos que a sucedeu, foram selecionados nove artigos para compor o volume, resultando em uma obra multidisciplinar e intercultural, cuja pluralidade de vozes e perspectivas tem considerável potencial agregador para os estudos da tradução enquanto fenômeno ”“ agente e produto ”“ da cultura.
Resenha de Tiempos sin fin
Authors: Warken Sobottka Mary Anne , Zils Elys Regina 
Published: June 2021

O tempo e sua finitude, o tempo para diferentes culturas e o tempo no imaginário poético, nas formas de construções de mundo através do poema e da linguagem é mote para o desenvolvimento das páginas do livro Tiempos sin fin de Andrés Claro, importante referência para os Estudos da Tradução que se ocupa do tempo cósmico e tempo histórico, relacionando linguagens Ã s imagens.
O conceito bermaniano de “estrangeiro” sob o prisma da tradução pós-colonial
Authors: Bandia Paul , Franco Oliveira Andressa , Deângeli Maria Angélica 
Published: June 2021

O conceito bermaniano de “a prova do estrangeiro” é particularmente capaz de elucidar e explicar a prática tradutória pós-colonial. A escrita literária em línguas europeias na África é caracterizada pela vernaculização e pela diglossia literária como estratégia de escrita em um contexto de comunicação intercultural. O emprego de línguas coloniais suscita questões de identidade e de ideologia, assim como o problema das relações de poder entre o centro e a periferia. A estratégia de desterritorialização e de reterritorialização, frequentemente utilizada por escritores pós-coloniais para tentar se reapropriar da língua colonial e reivindicar seu espaço próprio, é um exemplo do que Berman chama de “a escrita-de-tradução”. Esse estilo de escrita tem fundamentos ideológicos e socioculturais e coloca questões importantes relativas Ã s escolhas tradutórias, questões Ã s quais apenas se pode esperar responder por meio de uma ética séria e global da tradução. As teorias pós-modernas podem contribuir para a definição de um quadro ético da tradução que permite se distanciar da dicotomia presente na base de grande parte das teorias em tradutologia e que opõe a tradução estrangeirizadora Ã tradução domesticadora.