Sistema Regional de Información
en línea para Revistas Científicas de América Latina,
el Caribe, España y Portugal

Introducción: La anorexia nerviosa es un trastorno psiquiátrico de alta prevalencia en mujeres y que comúnmente se inicia en la adolescencia. Esta es definida sobre la base de tres criterios: restricción energética en relación con los requerimientos nutricionales acompañado de bajo peso, el miedo intenso a la ganancia de peso y a la alteración de la percepción de su peso o constitución, según lo descrito por el manual de diagnóstico y estadístico de los desórdenes mentales.Objetivo: Describir la alimentación en adolescentes diagnosticados con anorexia nerviosa.Material y Métodos: Se realizó una revisión narrativa de la literatura de estudios observacionales que informaran sobre características de la dieta en adolescentes diagnosticados con anorexia nerviosa, en un período sin intervención dietoterapéutica. La búsqueda bibliográfica se realizó en la interfaz PubMed de MEDLINE y la interfaz de Web of Science Core Colletion. Se incluyeron artículos en inglés, español y portugués, entre 2010 y 2020.Desarrollo: Algunos estudios analizaron la alimentación de pacientes adolescentes con anorexia nerviosa (AN), demostrando una restricción de la ingesta energética y de ciertos micronutrientes. Por otra parte, estudios han apreciado que la ingesta de proteínas estaba sobre las recomendaciones diarias para el grupo etario.Conclusiones: Esta revisión detectó una restricción energética y una alta ingesta proteica. Por otra parte, la ingesta de lípidos y carbohidratos es inferior en sujetos con AN frente a población sana, aun cuando se mantienen dentro de las recomendaciones diarias para la edad.

Introducción: La COVID-19 es una enfermedad con brechas en su conocimiento. Se requiere explorar sus manifestaciones clínicas en el tiempo y consecuencias para el desempeño en la población trabajadora.Objetivo: Identificar características clínica-epidemiológicas y aptitud para el trabajo en trabajadores de la salud convalecientes de la COVID-19.Material y Métodos: Se realizó un estudio longitudinal prospectivo con trabajadores de la salud de La Habana. La población estuvo constituida por 40 trabajadores, quienes acudieron a consulta de convalecientes de la COVID-19 en mayo de 2021, a los que se les dio seguimiento hasta mayo de 2022.Resultados: Persistieron al cierre del año, la disnea (18,8 %), insomnio (18,8 %), artralgia (12,5 %). La hipertensión arterial, obesidad y asma bronquial fueron las principales comorbilidades. Aptos para el puesto trabajo, 100 % de los trabajadores.Conclusiones: Los síntomas postCOVID-19 disminuyeron considerablemente a partir de los 8 meses del inicio de la enfermedad y persistieron la disnea, artralgia e insomnio al cierre del año.

Introduction: Chronic kidney disease constitutes a serious health problem all over the world and no therapy has evidenced to be effective to prevent it or to stop its progression, consequently, cytoprotective effect substances to the kidney such as erythropoietin, have been studied.Objective: To evaluate the effect of exogenous erythropoietin as renoprotective in animal models of kidney injury.Material and Methods: PRISMA method was used to conduct a systematic review of original articles written in English and Spanish and published during the last ten years, in which the cytoprotective effect of erythropoietin in animal models of kidney injury was evaluated. LILACS and Pubmed/Medline databases as well as Google Scholar search engine were used.Results: A total of 21 articles were included for synthesis and review. Most of the studies were based on animal models of acute kidney injury due to ischemia/reperfusion; only six research works were carried out in animal models of chronic kidney disease, three of them due to diabetic nephropathy. The use of adult Sprague-Dawley and Wistar male rats was predominant and so the high doses of erythropoietin. The schemes for treatment were diverse and they depended on the type of model studied. The effect in the structure and kidney function as well as biomarkers of apoptosis, cell proliferation, vascular restoration, oxidative stress, and inflammation were determined.Conclusions: Erythropoietin has renoprotective effects in animal models of kidney injury due to antiapoptotic, pro-proliferative, angiogenic, antioxidant, and anti-inflammatory mechanisms which could be considered as further strategies to prevent or decrease acute or chronic kidney disease.

The research aims to determine the factors that, in the areas of autonomy, academic activities, emotions, communication and interaction, have an impact on the adaptation skills of virtual students in higher education in Colombia. The study, based on both a qualitative and descriptive approach, was carried out with 1179 students from Universidad Ean, Politécnico Gran Colombiano and Fundación Universitaria del Área Andina, enrolled in undergraduate programs that took place in virtual mode in three cycles: first semester; fourth and fifth semesters; and seventh, eighth and ninth semesters, considering the varying duration of these programs. This research was carried out at the same time, so that the students in each training cycle are different. The results show that, for the five areas mentioned above, the behavior of the data is very similar in the three training periods, which means that the perception of the students coincides for what regards the level of impact attributed to each of the factors on which they were asked about.

The main purpose of this article is to analyze the musicians of the Conservatory as "titular recipients" of "high culture", who configured an artistic "field" with elements of identity and specific properties within a complex historical context permeated by Porfirio Díaz’ long-lasting presidency and the irruption of the Mexican Revolution. The Music Conservatory became an instance of legitimization, and its symphonic orchestra became the vehicle for the dissemination of national and international musical works; all this within a social space with cultural practices that educated not only its performers, but also the audience, in an interesting process of bringing high culture closer to the new urban middle classes and, later, to the popular classes, where, in addition, some spaces of social interaction encouraged musical life. From the perspective of cultural history, a link between the disciplines of history and sociology is created as a methodological resource, in order to sustain a diachronic and critical approach to a subject that is being studied with greater emphasis in our country.

This article analyzes the egocentric networks that newly admitted students in higher education institutions rely on. The study was quantitative and involved 76% of the population enrolled in August 2018 at the Universidad Autónoma de Ciudad Juárez, Nuevo Casas Grandes campus in Chihuahua City, Mexico. The purpose was to compare the characteristics of the egocentric network of university students with different academic status (failing, regular and lagging), in order to determine the types of relationships, density and attributes of the actors in the academic trajectory of the students. The methodology used was the analysis of social networks, based on a General Social Survey name generator questionnaire, in which we found that kinships are stronger and more intimate when the relationship is between women (homophily); this has an important impact on the students’ decision making and academic trajectory.

The pandemic has generated high uncertainty in the university context, forcing it to process huge amounts of information as quickly as possible. This paper proposes a method for the analysis of online press articles using techniques adapted from scientific field mapping. The methodological design was tested by analyzing a sample of 318 articles from the Times Higher Education journal. Nine thematic clusters were identified in the global debate on higher education in the context of the pandemic. This allowed us to verify the efficiency of the proposed method and its usefulness for the generation of evidence for decision making.

Self-regulated work became especially important during the emergency due to COVID-19 in order to find solutions to the problems that involved social distancing and the modification of teaching conditions. The aim of this research was to analyze the use of learning strategies and their relationship with learning performance in the context of online education, derived from the COVID-19 emergency period. A descriptive, cross-sectional and quantitative approach study was carried out with a sample of 611 students from a Mexican university. The results revealed that, although they did not enjoy online education due to the pandemic, their learning achievements were satisfying. The hierarchical regression model showed high predictive influence of the use of learning strategies and low influence of context on learning performances. The need to increase the development of self-regulated learning emerged; to do so, teachers should strengthen pedagogical and digital competencies.

This article analyzes the intergenerational social mobility of women beyond the normal age for higher education (18 to 22 years old) who studied and worked while enrolled in a bachelor's degree and who are engaged in teaching, based on a follow-up of graduates of the unit 097's degree in preschool education (Licenciatura en Educación Preescolar) of the National Pedagogical University (UPN) in Mexico City. For the study, an online questionnaire was applied; 128 graduates completed the questionnaire. The results show that the potential benefits of higher education in terms of social mobility are limited by the disadvantageous conditions in which preschool education graduates live and work, conditions that are accentuated by institutional factors (such as the low graduation rate of this unit) and other circumstances (such as the pandemic).

The importance of the study of entrepreneurial intention lies in the understanding of such behavior in individuals and the associated factors for entrepreneurship. The aim of this study is to identify significant relationships between some variables (age, family background, entrepreneurial development, locus of control, managerial self-efficacy, and subjective norms) and the entrepreneurial intention of young university students. To achieve the identification of these relationships, 15 718 surveys from the GUESSS study for Colombia were used, in which 76 higher education institutions took part between June and October 2018. Two logistic models were matched: the first with the intention for entrepreneuring immediately after graduating, and the second with the same intention five years after graduating. All the relationships under test turned out to be significant, but the direction of the relationship (positive or negative association) differed for some of them at the two time points that were analyzed. Initially, implementation intentions and managerial self-efficacy had positive relationships with entrepreneurial intention (the higher the value of these, the higher the entrepreneurial intention), while subjective norms showed a negative relationship (the lower the value, the higher the entrepreneurial intention). However, when these relationships were examined five years later, the direction of the relationship was reversed.