Impacto do covid-19 em estudantes de língua espanhola

La pandemia del SARS-CoV-2 ha creado un desafío sin precedentes para la educación. En 2020, como resultado de las medidas para reducir la propagación del SARS-CoV-2, muchas instituciones educativas pasaron del aprendizaje presencial al aprendizaje remoto. Sin embargo, este modelo educativo puede generar estrés y ansiedad adicionales a la ansiedad provocada por la pandemia. Los objetivos del presente estudio fueron: 1) comparar las perspectivas de estudiantes y docentes sobre el número de horas dedicadas a las clases, y 2) determinar las principales dificultades que enfrentan docentes y estudiantes, respectivamente, al pasar al sistema de educación en línea. Para realizar esta investigación se realizó una encuesta online en países de habla hispana, utilizando una muestra de 1.048 participantes anónimos. A través de los datos recopilados. Se analizaron el uso de plataformas, los tipos de equipos, los niveles de angustia y las posibles razones de esta angustia. Esta pandemia es una de las amenazas de salud pública más importantes de la historia reciente y ha afectado nuestras vidas de manera significativa, siendo una de las más importantes la futura adaptación de escuelas, estudiantes y docentes a una nueva forma de aprender.The SARS-CoV-2 Pandemic has created an unprecedented challenge for education. In 2020, as a result of measures to reduce the spread of SARS-CoV-2, many educational institutions shifted from on-site to remote learning. However, this educational model can cause stress and anxiety in additional to the anxiety caused by the pandemic. The objectives of the present study were: 1) to compare the perspectives of students and teachers regarding the number of hours devoted to classes, and 2) to determine the main difficulties faced by teachers and students, respectively, upon shifting to the online education system. To perform this research, an online survey was conducted in Spanish-speaking countries, using a sample of 1,048 anonymous participants. Through the data collected. platform usage, types of equipment, levels of distress, and possible reasons for this distress were analyzed. This pandemic is one of the most important public health threats in recent history and it has affected our lives in a significant way, one of the most important concern the future adaptation of schools, students, and teacher to a new way of learning.A pandemia de SARS-CoV-2 criou um desafio sem precedentes para a educação. Em 2020, como resultado de medidas para reduzir a disseminação do SARS-CoV-2, muitas instituições de ensino passaram do aprendizado presencial para o remoto. No entanto, esse modelo educacional pode causar estresse e ansiedade além da ansiedade causada pela pandemia. Os objetivos do presente estudo foram: 1) comparar as perspectivas de alunos e professores em relação ao número de horas dedicadas às aulas e 2) determinar as principais dificuldades enfrentadas por professores e alunos, respectivamente, ao mudar para o sistema de ensino online. Para realizar esta pesquisa, foi realizada uma pesquisa online em países de língua espanhola, utilizando uma amostra de 1.048 participantes anônimos. Através dos dados coletados. uso da plataforma, tipos de equipamentos, níveis de angústia e possíveis razões para essa angústia foram analisados. Esta pandemia é uma das ameaças de saúde pública mais importantes da história recente e tem afetado as nossas vidas de forma significativa, uma das mais importantes diz respeito à futura adaptação das escolas, alunos e professores a uma nova forma de aprender.Para acceder al conjunto de datos que se utilizó para la elaboración de este artículo, hacer clic en "Documentos relacionados".Universidad de ChileCentro de Estudios Parasitológicos y de VectoresUniversidad de ValenciaUniversidad Católica de La PlataFacultad de PsicologíaUniversidad Nacional Autónoma de Méxic

Discos interactivos : unidad IV almacenamiento y flujo de la información genética. Proyecto papime EN210804

Se presenta un conjunto de tres CDs para la enseñanza de la Biología Celular a nivel" licenciatura. Los cds acompañan a tres libros de texto de formato pequeño, tamaño esquela. Los CD-ROM, contienen: Unidades didácticas desarrolladas con conceptos esenciales de Biología Celular, vinculados a artículos de apoyo a la docencia (en formato pdf), gráficos, tablas y animaciones de procesos celulares. Imágenes y animaciones en power point y flash (50), que permiten realizar un recorrido visual e interactivo por los conceptos y procesos involucrados en la enseñanza de la Biología Celular. Autevaluaciones, que le permiten al alumno valorar si han adquirido los conocimientos fundamentales de cada unidad. Un glosario, para que el alumno se pueda referir a él en cualquier momento de estudio, para que aclare sus dudas con respecto a los conceptos. Enlaces a sitios confiables en la red, los cuales pueden contener: imágenes en 3D, animaciones, información relevante y ejercicios de cada tema

Discos interactivos : unidad IV almacenamiento y flujo de la información genética. Proyecto papime en210804

Se presenta un conjunto de tres CDs para la enseñanza de la Biología Celular a nivel" licenciatura. Los cds acompañan a tres libros de texto de formato pequeño, tamaño esquela. Los CD-ROM, contienen: Unidades didácticas desarrolladas con conceptos esenciales de Biología Celular, vinculados a artículos de apoyo a la docencia (en formato pdf), gráficos, tablas y animaciones de procesos celulares. Imágenes y animaciones en power point y flash (50), que permiten realizar un recorrido visual e interactivo por los conceptos y procesos involucrados en la enseñanza de la Biología Celular. Autevaluaciones, que le permiten al alumno valorar si han adquirido los conocimientos fundamentales de cada unidad. Un glosario, para que el alumno se pueda referir a él en cualquier momento de estudio, para que aclare sus dudas con respecto a los conceptos. Enlaces a sitios confiables en la red, los cuales pueden contener: imágenes en 3D, animaciones, información relevante y ejercicios de cada tema

Aplicaciones web para recuperación y análisis de literatura de PubMed

This paper analyzes the Web applications to manage literature in Biomedical Sciences. We identified, examined and described 28 academic utilities that perform automated analysis. They are user-friendly, and altogether provide better search, retrieval, management and metaanalysis (bibliometrics, network analyses and text mining) of PubMed literature in an efficient, automated, updated and systematized manner that facilitates the simultaneous handling of large quantities of paper records, making it possible for the user to choose the most relevant. All of these initiatives address the needs and challenges of biomedical research in our time

Nurses experience reciprocal fitness benefits from their distantly related facilitated plants

It is well known that many plants benefit from growing beside a nurse plant of another species, but the possibility that the nurse also benefits has been rarely studied. We hypothesize that positive interactions are maintained not only because of the recruitment benefits for the facilitated plants but also because of fitness benefits for the nurse plant. We tested this hypothesis by comparing seed production, seed predation and seed viability of a dominant nurse plant species (Mimosa luisana) when growing alone and in patches surrounded by its facilitated species. We also tested whether fitness of the nurse species is dependent on the phylogenetic neighborhood formed by their facilitated species using an analysis that accounted for the abundance and pairwise phylogenetic similitude of all species in each patch. Nurses growing associated to their facilitated species produced more seeds (1.86 times) and these seeds were more viable (1.47 times) than those of nurses growing alone. Seed predation did not alter these fitness differences. Seed number and viability increased in phylogenetically diverse neighborhoods. We conclude that distantly related partners are more likely to cause reciprocal increases in fitness, and that such effects contribute to species coexistence. © 2014 Geobotanisches Institut ETH, Stiftung Ruebel.Funding was provided by PAPIIT-DGAPA, UNAM (IN-202811-3; IN-213414-3), MICINN (CGL2011-29585-C02-01) and CYTED (Acción 409AC0369). This paper constitutes a partial fulfillment of the Graduate Program in Biomedical Sciences of the National Autonomous University of México (UNAM). L.S. acknowledges the scholarship and financial support provided by the National Council of Science and Technology (CONACyT), and UNAM.Peer Reviewe

Conceptos básicos de genética

Este libro trata sobre los conceptos básicos de la genética siguiendo un enfoque histórico, abarcando la genética clásica o mendeliana, la genética molecular y la genética de poblaciones

Global Drosophila Research: a bibliometric analysis

The scientific productivity of Drosophila-related research among researchers, countries, institutions, journals, and subject areas was investigated by a bibliometric analysis of Drosophila research from 1900 to 2008. The search includes the Pub Med, using the keywords listed in the medical subject headings thesaurus, and the Science Citation Index databases with the word Drosophila in the title. From Pub Med 36,486 documents were obtained, whereas a total of 48,981 documents were obtained from Science Citation Index. 76.9% of the documents are research papers, mostly (95.2%) written in English, and (55.8%) produced in the United States. The study includes 4,600 institutions and 45,415 author names. Most prolific are 34 authors, who account for 9% of the articles published, with more than 100 research papers produced by each author. We considered 1,648 journals; 60 of them (3.6%) published 66% of the articles. Genetics is the main journal most used for Drosophila research publications (9.9%). Genetics and heredity as well as biochemistry, molecular biology, and cell biology are the dominant research subjects. We compare research in Drosophila melanogaster with 10 other organisms, frequently used as biological models: Escherichia coli, Saccharomyces cereviseae, Arabidopsis thaliana, Zea mays, Neurospora crassa, Dictyostelium discoideum, Chlamydomonas reinhardtii, Caenorhabditis elegans, Schizosaccharomyces pombe, and Danio rerio. Escherichia coli is the most extensively used model organism for genetics research since 1950, with 94,873 documents. Keywords: Fruit fly, history, genetics, biological experimental models, SCI, Pub Med

Conceptions of meiosis: Misunderstandings among university students and errors

We have designed and tested an exercise to detect misconceptions among students about meiosis, a fundamental concept in genetics. A total of 30 students responded to a questionnaire, all of whom were in the fifth semester of the Biology bachelor’s degree program offered by the Faculty of Science of the National Autonomous University of Mexico. Our analysis showed that students have a poor understanding of the fundamental processes of meiosis and that they have trouble distinguishing them. When asked to diagram part of the process, none were able to produce a complete and accurate representation.Fil: Rodríguez Gil, Sergio Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Estudios Parasitológicos y de Vectores. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Centro de Estudios Parasitológicos y de Vectores; ArgentinaFil: Fradkin, Maia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de Lomas de Zamora. Facultad de Ciencias Agrarias; ArgentinaFil: Castañeda Sortibrán, América Nitxin. Universidad Nacional Autónoma de México; Méxic

Global Drosophila melanogaster Research: a bibliometric analysis

The scientific productivity of Drosophila-related research among researchers, countries, institutions, journals, and subject areas was investigated by a bibliometric analysis of Drosophila research from 1900 to 2008. The search includes the Pub Med, using the keywords listed in the medical subject headings thesaurus, and the Science Citation Index databases with the word Drosophila in the title. From Pub Med 36,486 documents were obtained, whereas a total of 48,981 documents were obtained from Science Citation Index. 76.9% of the documents are research papers, mostly (95.2%) written in English, and (55.8%) produced in the United States. The study includes 4,600 institutions and 45,415 author names. Most prolific are 34 authors, who account for 9% of the articles published, with more than 100 research papers produced by each author. We considered 1,648 journals; 60 of them (3.6%) published 66% of the articles. Genetics is the main journal most used for Drosophila research publications (9.9%). Genetics and heredity as well as biochemistry, molecular biology, and cell biology are the dominant research subjects. We compare research in Drosophila melanogaster with 10 other organisms, frequently used as biological models: Escherichia coli, Saccharomyces cereviseae, Arabidopsis thaliana, Zea mays, Neurospora crassa, Dictyostelium discoideum, Chlamydomonas reinhardtii, Caenorhabditis elegans, Schizosaccharo-myces pombe, and Danio rerio. Escherichia coli is the most extensively used model organism for genetics research since 1950, with 94,873 documents

CONSCIENCIA 2023 Una danza de muchos.pdf

El uso de los de los fagos como alternativa al uso de antibióticos convencionales ha sido explorada desde hace años y es conocida como fagoterapia (Sulakvelidze et al., 2001; Hagens et al., 2004; Harper & Enri­ght, 2011; Mandal et al., 2014; Kaur, 2016). En este sentido, el modelo de D. melanogaster también ha sido empleado para evaluar la eficacia antibacterial de los fagos contra un patógeno humano oportunista, como lo es Pseudomonas aeruginosa (Heo et al., 2009; Jang et al., 2018). Esto es sólo una muestra de un enfoque que promete arrojar más información sobre el uso potencial de los fagos, aunque, y todavía más importante, también representa un nuevo punto de partida para identificar e inda­gar sobre interacciones todavía no descritas. Si un solo modelo como D. melanogaster ha sido capaz de aportar tanto a la biología, ahora falta esperar qué nos puede decir ésta en conjunto a sus bacterias y virus en conjunto.</p