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

Introducción. Se sabe que en cualquier sistema de transmisión lo que se propaga son ondas electromagnéticas que se transmiten y reciben y conocer la tendencia en la que varía con la distancia es uno de los requisitos fundamentales para un sistema de transmisión celular confiable y eficiente.  Objetivos: Realizar un estudio comparativo de cinco modelos de propagación en diferentes escenarios en la zona norte de la ciudad de Riobamba; determinar cuál de los cinco modelos incluidos en el estudio es el más aplicable en cada caso.  Metodología: Realizar un diagrama comparativo mediante gráficos que muestren la tendencia de cada uno de los modelos de propagación con respecto a las mediciones obtenidas mediante el software.  Resultados: El modelo de propagación SUI es el que se adaptó a los escenarios propuestos porque sus cálculos para determinar las pérdidas de trayectoria incluyen datos más específicos dentro de un área suburbana.  Conclusiones: Tras las respectivas investigaciones y los resultados obtenidos, se determinó que a una distancia considerable entre la estación base y el receptor móvil, la potencia de recepción disminuye.

Maslach and Jackson (1981, 1982) define Burnout as an occupational manifestation of work stress and define it as a three-dimensional syndrome characterized by emotional exhaustion (EE), depersonalization (DP) and difficulty in personal achievement/fulfillment (PA). Based on this, the MBI (Maslach Burnout Inventory) questionnaire was developed to assess Burnout Syndrome in healthcare personnel. The main objective was to identify in the scientific literature on burnout syndrome in health professionals working in the oncology area by means of the Maslach Burnout Inventory. The research was conducted through a systematic review based on PRISMA. A search of updated scientific articles from 5 years ago was conducted using key words in databases such as: Pubmed, Scopus and Web of Science. There was a considerable prevalence of Burnout Syndrome in the studies found and specific risk factors for oncology services. It is necessary to put more emphasis on these aspects and to awaken the concern of those who oversee these health services, to look for solutions focused on mechanisms to treat this syndrome.

Patients infected with COVID-19 disease who require mechanical ventilation have a high mortality and use of resources. The ability to predict and issue clinical criteria in which patients may require mechanical ventilation will allow greater acuity of targeted care and intervention to potentially mitigate deterioration of their physiology. Objective: To examine through the review of the scientific literature on early mobilization in patients with mechanical ventilation infected with COVID-19. Methodology: A bibliographical analysis of the literature in different scientific journals such as SCOPUS, WEB OF SCIENCE and PUBMED was conducted under a narrative, interpretive and conceptual synthesis approach. Therefore, key terms in English and Spanish were used, such as: "patients infected with covid-19", "infected mechanically ventilated patients", "critical care medicine", "mechanical ventilation". The bibliographic sources were established from 2019 to 2021. Results: The existence of medical, logistical and protection challenges for medical personnel to provide respiratory support in patients infected with COVID-19 is demonstrated, from epidemiology to clinical characteristics, and the development of pharmacological treatments that improve mortality and survival. Conclusion: An integrated therapeutic approach is essential to mitigate the adverse physical and mental health effects of COVID-19 pneumonia.

Introduction. This result article is based on the research problem identified as the inefficiency of internal communication and leadership processes in the organizational culture and the consequent impacts on it that are reflected in low productivity. Objective. Determine the factors that positively impact the organizational culture of a University Academic Unit in Cuenca, Ecuador. Methodology. The applied method is the scientific one, the research is of a quantitative type, with an exploratory, descriptive and correlational scope. The study subjects are teachers and administrators of a University Academic Unit. The information is collected with census criteria. The measurement instrument is a questionnaire validated by judges' criteria and with reliability through Cronbach's Alpha coefficient of 0.959 for the general scale. Results. It is found that, at a bilateral significance level of less than 0.05 of the p-value, the research variables Prom_Internal Communication (0.789**) and Prom_Transformational Leadership (0.778**) are linearly correlated with the dependent variable Prom_ Organizational Culture. Conclusion. It is possible to develop improvement strategies in the organizational culture by incorporating innovation strategies in internal communication and transformational leadership.

Institutions are entities that contain rules for the development of societies and allow coexistence between individuals. These are established to govern social behavior and for which their compliance seeks to obtain the best results. The objective of this research is to analyze the new governance management for public institutions of the State. The methodological design is bibliographic documentary. As a conclusion, it can be indicated that to achieve the success of governance in public institutions, there must be important links between the government, society and other social actors that allow meeting the needs presented by each of the participants. Likewise, public institutions with greater transparency tend to obtain more support from society, since they feel that they are taken care of and considered and thus fulfill their responsibilities regarding the payment of taxes that are destined to the improvement of public services. In the same way, good governance management allows citizens to take part in the decisions, and the government knows that the economic resources used are reduced, so they try to use them in a measured way and cover necessary expenses

  Resumen: En los últimos años, ante el incremento del uso del ciberespacio, ha florecido la violencia, y con ella la aparición de diversos trastornos mentales, entre ellos la depresión. Objetivo: Realizar una revisión sistemática de las investigaciones ejecutadas entre 2019 y 2022 sobre la relación ciberbullying y depresión en población adolescente. Método: Selección de artículos en búsquedas de 90 estudios, escritos en español o en inglés, 2 en REDIB y 88 PubMed, en la fecha 2/2/2022. Método: Los términos de búsqueda fueron: “cyberbullying” and “depresión” and “depression” and “adolescencia”. Resultados: Los artículos seleccionados por sus resúmenes para su análisis fueron 33: 7 muestras de Estados Unidos de Norteamérica, 5 de China, 5 de España, 2 de Perú, 2 de Turquía, y 1 de Rumania, Qatar, Bélgica, Taiwán, Singapur, Bangladesh, Suecia y Australia y 4 revisiones y metaanálisis de diversos países no especificados en los resúmenes.  Participaron un total de 14.300 adolescentes y los de revisión sistemática y metaanálisis fueron 237960. Se detallan en una tabla los instrumentos utilizados, cuantitativos, donde predominan escalas de Cyberbullying y Depresión tanto, para investigar la correlación entre las mismas, además de la medición de otras variables mediadoras y moderadoras. Conclusiones: Confirma hallazgos sobre la asociación significativa cibervictimización y depresión y el efecto predictivo significativo del Cyberbullying sobre la depresión.

Abstract: Currently, more than 10 % of the population is affected by some type of Specific Learning Disorder (SLD). This article presents the objective of analyzing scientific works that analyze the relationships with the best performance of students with SLD or Learning Disorder (LD) through the development of socio-emotional skills and competencies that increase the degree of motivation, such as teamwork. For this, a systematic review of articles published between 2014 and 2021 was carried out, through open access indexing databases, in English, Portuguese and Spanish. Of the 146 articles found, following the PRISMA method and through definitive screening, 16 publications were included, in which the triad of teachers, parents and basic education students are present. The results indicate that the actions focus on the development and learning of students with LD or SLD and the possible changes in emotional perception that cause learning difficulties. As a suggestion, there is the creation of adequate public policies for the continuous evaluation of students, reflection on pedagogical practices through teacher training and close work between the parties involved in the process.

Resumen: El artículo aborda el tema de la procrastinación en estudiantes universitarios en el contexto latinoamericano. El problema y objetivo persiguen describir qué factores intervienen en la conducta procrastinadora en esta población universitaria. El enfoque metodológico se inscribe como un estudio de revisión sistemática. El método que asume es la declaración PRISMA 2020 y la lista de verificación de 27 ítems. Se utilizan dos bases de datos: ProQuest y Redalyc, de las cuales se obtuvieron las unidades de análisis. Los principales resultados señalan que la tendencia a procrastinar entre hombres y mujeres es relativa. La procrastinación académica se correlaciona positivamente con la ansiedad y el estrés. Estos factores pueden predecir la conducta procrastinadora. Las actividades distractoras, la adición a las redes sociales e internet potencian la procrastinación. Se concluye que diferentes variables sociodemográficas y hábitos socioculturales influyen en la conducta procrastinadora de los estudiantes universitarios. No existen estudios concluyentes que demuestren una mayor conducta procrastinadora entre hombres y mujeres.

Resumen: El enactment como concepto específicamente psicoanalítico ha tenido una evolución que se acentúo en las últimas décadas llevando a una situación compleja en cuanto a sus usos y definiciones marcando algunas dificultades epistemológicas necesarias de consideración. El presente estudio se propone realizar una revisión sistemática acerca de los usos del concepto enactment en artículos científicos publicados entre los años 2020 y 2021. La revisión sistemática, llevada a cabo según la declaración PRISMA, se realizó en enero de 2022 quedando seleccionados 44 artículos científicos provenientes de 8 bases de datos. En función a los resultados obtenidos, el enactment es utilizado en artículos científicos específicamente psicoanalíticos y sus usos varían dependiendo de los diversos enfoques teóricos que esta disciplina presenta. A pesar de ello, en tanto el enactment define una situación clínica específica que interpela tanto al paciente como al terapeuta es que, más allá de las dificultades epistemológicas del constructo, permanece dentro de los conceptos fundamentales de la técnica psicoanalítica. Se puntualiza la necesidad de continuar con las investigaciones que se han realizado, abriendo nuevas líneas hacia estudios clínicos empíricos.

Abstract: There are several studies that are relevant to understand the anxiety levels in university students during the COVID-19 pandemic. In this exhaustive research work, considerable information was obtained for the systematic analysis of scientific discoveries by a variety of health professionals, where they present several results on the subject under consideration. We reviewed and analyzed 71 articles obtained from REDIB, SciELO, PUBMED and the Pan American Health Organization Regional Health Portal linked to the construct: Anxiety in University Students during the COVID-19 Pandemic. The research manages to conceptualize what anxiety is, the effects of the pandemic and different perceptions in various places around the world in the population of university students. There have been different research approaches in combination with anxiety, but the authors' findings point to a deeper understanding of how anxiety has affected college students. This systematic review opens the door to possible in-depth research on the subject and how we can help students with anxiety during these difficult times.