Comunicación y liderazgo político de López Obrador con sus seguidores a través de Twitter durante el Covid-19

political communication in moments of crisis require an efficient strategy that guides the citizens on how to act correctly. Nowadays, most leaders use digital social networks as political instruments. President López Obrador is one of the politicians with the most followers (almost nine million) on the digital social network Twitter. The sanitary crisis due to Covid-19 keeps producing repercussions for what has studied the communication of the Mexican president. The objective of this paper is to analyze the leadership and political communication in the Mexican president’s tweets in 2020, the first year of the Covid-19 pandemic. The communication constructs of communication, populism, charism, and strategic behavior were used to determine his political communication and leadership style. 631 tweets were analyzed by way of a qualitative methodology and a content analysis where 104 were concerning Covid-19. The results show that president López Obrador mainly uses an informative-communication style about his management with populist features. The paper concluded that the Mexican president didn´t use Twitter as an informative strategy for the health emergency which is the opposite of effective leadership and political communication during the crisis, either as a correct political instrument. In addition, adapting his style to the circumstances may be recommended.El liderazgo y comunicación política en tiempos de crisis requieren de una eficiente estrategia que guie a losciudadanos sobre cómo actuar. Actualmente, los líderes utilizan las redes sociales digitales como instrumentos políticos. El presidente López Obrador es uno de los políticos con mayor número de seguidores (casi nueve millones) en Twitter. La crisis sanitaria por Covid-19 sigue generando graves repercusiones por lo que se analizó cómo se comunicó el presidente mexicano durante esta etapa. El objetivo de la investigación fue analizar el liderazgo y comunicación política en sus tuits 2020. Se utilizaron los constructos de comunicación, populismo, carisma y comportamiento estratégico para determinar su estilo. Se analizaron 631 tuits mediante una metodología cualitativa y de análisis de contenido, de los cuales 104 estaban relacionados con el Covid-19. Los resultados muestran que López Obrador tiene principalmente un estilo de comunicación informativo sobre su gestión con características populistas y carismáticas y finalmente poco orientado al comportamientoestratégico. Se concluye que el presidente mexicano no empleó Twitter como estrategia informativa sobre la contingencia sanitaria, lo cual es contrario a un liderazgo y comunicación política eficiente durante una crisis, ni tampoco como instrumento político. Se recomienda adecuar su estilo según las circunstancias

Sex-related differences in motor learning and performance

Gender differences have been shown across many domains, and motor skills are no exception. One of the most robust findings is a significant sex difference in throwing accuracy, which reflects the advantage of men in targeting abilities. However, little is known about the basis of this difference. To try to dissect possible mechanisms involved in this difference, here we tested for gender variations in a prism adaptation throwing task. We tested 154 subjects in a visuomotor prism adaptation task that discriminates between motor performance, visuomotor adaptation and negative aftereffects. Our results corroborate men's significant better throwing accuracy, although there were no adaptation differences between genders. In contrast, women showed significant larger negative aftereffects, which could be explained by a larger contribution of spatial alignment. These results suggest that different learning mechanisms, like strategic calibration and spatial alignment, may have different contributions in men and women

Comunicación y liderazgo político de López Obrador con sus seguidores a través de Twitter durante el Covid-19

El liderazgo y comunicación política en tiempos de crisis requieren de una eficiente estrategia que guie a los ciudadanos sobre cómo actuar. Actualmente, los líderes utilizan las redes sociales digitales como instrumentos políticos. El presidente López Obrador es uno de los políticos con mayor número de seguidores (casi nueve millones) en Twitter. La crisis sanitaria por Covid-19 sigue generando graves repercusiones por lo que se analizó cómo se comunicó el presidente mexicano durante esta etapa. El objetivo de la investigación fue analizar el liderazgo y comunicación política en sus tuits 2020. Se utilizaron los constructos de comunicación, populismo, carisma y comportamiento estratégico para determinar su estilo. Se analizaron 631 tuits mediante una metodología cualitativa y de análisis de contenido, de los cuales 104 estaban relacionados con el Covid-19. Los resultados muestran que López Obrador tiene principalmente un estilo de comunicación informativo sobre su gestión con características populistas y carismáticas y finalmente poco orientado al comportamiento estratégico. Se concluye que el presidente mexicano no empleó Twitter como estrategia informativa sobre la contingencia sanitaria, lo cual es contrario a un liderazgo y comunicación política eficiente durante una crisis, ni tampoco como instrumento político. Se recomienda adecuar su estilo según las circunstancias.//Leadership and political communication in moments of crisis require an efficient strategy that guides the citizens on how to act correctly. Nowadays, most leaders use digital social networks as political instruments. President López Obrador is one of the politicians with the most followers (almost nine million) on the digital social network Twitter. The sanitary crisis due to Covid-19 keeps producing repercussions for what has studied the communication of the Mexican president. The objective of this paper is to analyze the leadership and political communication in the Mexican president’s tweets in 2020, the first year of the Covid-19 pandemic. The communication constructs of communication, populism, charism, and strategic behavior were used to determine his political communication and leadership style. 631 tweets were analyzed by way of a qualitative methodology and a content analysis where 104 were concerning Covid-19. The results show that president López Obrador mainly uses an informative-communication style about his management with populist features. The paper concluded that the Mexican president didn´t use Twitter as an informative strategy for the health emergency which is the opposite of effective leadership and political communication during the crisis, either as a correct political instrument. In addition, adapting his style to the circumstances may be recommended

La tríada trabajo en equipo, flipped learning y aprendizaje por proyectos a través de entornos virtuales en estudiantes de educación

Memoria ID-195. Ayudas de la Universidad de Salamanca para la innovación docente, curso 2019-2020

Videogame-related experiences among regular adolescent gamers

The objective of this study was to identify the videogame-related experiences expressed by regular adolescent gamers and to explore the socio-family factors related to these experiences. A cross-sectional observational and descriptive study was carried out with a convenience sample of regular Spanish videogamers between 16 and 18 years old. To measure the use of videogames for evasion and its negative consequences, the Questionnaire of Videogame-Related Experiences (Cuestionario de Experiencias Relacionadas con Videojuegos, CERV) was used and socio-family variables collected, evaluating their relationship with the results of the CERV. A total of 206 adolescents participated, 89.3% men [84.3-93.2] and 17.9% [12.9-23.9] allocating more than 35 hours a week to videogames. The CERV subscale related to the evasive use of videogames (max. = 24 points) obtained a mean value of 11.71 (SD = 3.52) and the mean value for the subscale related to the negative consequences (max. = 27 points) was 7.14 (SD = 3.33). A higher frequency of high values of evasive use (p = .038) and higher scores of this subscale (p = .02) were found in gamers without brothers or sisters. Higher scores and larger numbers of negative consequences were found in gamers who play more than 21 hours a week (p = .032). In conclusion, frequent use of videogames does not seem to be carried out with an evasive purpose, except in the case of absence of siblings. Frequent videogame use has only proven to carry a higher level of negative consequences when playing more than 21 hours a week. No other socio-family variables related to these subscales of the CERV have been identified

Berry Supplementation and Their Beneficial Effects on Some Central Nervous System Disorders

This chapter is based in the compilation and analysis of different in vitro, preclinical, and clinical studies, which explored the potential beneficial bioactivity of supplementation with berries on some alterations in the central nervous system (CNS). The last section of the chapter describes the possible mechanisms of action of polyphenols, anthocyanins, and other compounds present in berries as well as their relationship with anxiety, depression, and Alzheimer’s (AD) and Parkinson’s diseases (PD) and their implication in the prevention of cognitive decline and senescence motor functions. Electronic databases as Springer, PubMed, Scopus, and Elsevier were used. Papers were selected by topic specially those related with berries, year of publication, and authors. The present chapter evidenced the potential health effect as neuroprotector of different berries and their bioactive compounds mainly flavonoids, polyphenols, and anthocyanins, on diseases such as anxiety, depression, and Alzheimer’s and Parkinson’s diseases. In conclusion, for human nutrition berry fruit supplementation might be an excellent source of antioxidant and alternative for prevention and reduction of symptoms in diseases such as anxiety, depression, Alzheimer’s, and Parkinson’s

Momento Económico (34-35)

En este número Temas de hoy. 21 El Pacto de Solidaridad Económica (PSE) y la inflación en México Fausto Burgueño Lomelí. 3/ El pacto, hacia la rectoría trasnacional: significa la expropiación del salario Mario J. Zepeda. 4/ El PSE: Desinflación con más estancamiento lfigenia Martínez, 5/ Inflación y PSE Arturo Guillén Romo, 7/ Qué es y cómo surgió el PSE Magdalena Galindo, 9/ El PSE o después del pueblo ahogado...tapen el pozo Victor M. Bernal Sahagún, 13/ Monetarismo en el pacto lrma Manrique Campos, 14/ El pacto contra inflación: segundo round Emilio Romero Polanco. 11/ Aspectos monetarios y cambiarios del PSE Alma Chapoy Bonifaz, 18/ Financiamiento externo y PSE Andrés Blancas Neria, 23/ Apertura comercial y privatización: dos caras del proyecto del gran capital Patricia Olave C. 28

Active methodologies at the university, mediated by technologies in different disciplines

[ES] Las metodologías activas forman una parte importante de los actuales modelos de enseñanza, que promueven un rol activo en los estudiantes, articulando sobre ellos los demás elementos del currículum como objetivos, contenidos, actividades y recursos, donde las Tecnologías de la Información y la Comunicación (TIC) ofrecen un importante soporte. El escenario de pandemia, provocado por el COVID-19, ha puesto más en alerta la necesidad de potenciar en los estudiantes universitarios la promoción de sus capacidades de aprendizaje autónomo y autorregulado. A través de este artículo, se presenta la experiencia de un grupo de docentes, pertenecientes a diversas disciplinas, a través de un proyecto de innovación docente, dirigido al desarrollo de metodologías activas a través de la plataforma institucional. Los resultados confirman la necesidad y la eficacia de las metodologías activas soportadas por las tecnologías, lo cual ayuda a mejorar la inclusión y la interacción de los estudiantes.[EN] Active methodologies form an important part of current teaching mo-dels, which promote an active role for students, articulating on them the other elements of the curriculum such as objectives, contents, activities, and resources, where Infor-mation and Communication Technologies (ICT) offer an important support. The pan-demic scenario, provoked by COVID-19, has made more alert the need to enhance the promotion of autonomous and self-regulated learning skills in university students. This paper presents the experience of a group of teachers from different disciplines through a teaching innovation project aimed at developing active methodologies through the institutional platform. The results confirm the need and effectiveness of active methodo-logies supported by technologies, which helps to improve the inclusion and interaction of student

Modulation of argon pressure as an option to control transmittance and resistivity of ZnO:Al films deposited by DC magnetron sputtering: on the dark yellow films at 10^-7 Torr base pressures

In a previous paper, we reported that thin films of ZnO:Al [aluminum-zinc oxide (AZO)] deposited after achieving a very low base pressure [from 4.0×10-7 Torr (5.6×10-5 Pa) to 5.7×10-7 Torr (7.6×10-5 Pa)] result dark yellow in color and are resistive. These are undesirable characteristics for the application of AZO thin films as front electrodes in solar cells. However, given the increasingly tendency in the acquisition of equipment that allow us to reach excellent vacuum levels, it is necessary to find the deposition conditions that lead to an improving of transmittance without greatly impacting the electrical properties of materials deposited after achieving these levels of vacuum. In this way, the present work is focused on AZO thin films deposited after achieving a very low base pressure value: 4.2×10-7 Torr (5.6×10-5 Pa). For this, we studied the effect of the variation of the oxygen volume percent in the argon/oxygen mixture (by maintaining the deposition pressure constant) and the effect of deposition pressure with only argon gas on the main properties of AZO thin films. The depositions were done at room temperature on glass substrates by direct-current magnetron sputtering with a power of 120 W (corresponding to a power density of 2.63 W/cm2). As results, we found that the variation of deposition pressure with only argon gas is a good option for the control of optical and electrical properties, since the addition of oxygen, although improves transmittance, greatly impacts on the electrical properties. Furthermore, an interesting correlation was found between the optical and electrical properties and the chemical composition of the AZO films, the latter depending on the argon pressure (for this, a careful X-ray photoelectron spectroscopy analysis was performed). Also, the inverse relationship between crystallinity and deposition rate was confirmed, in which deposition rate inversely depends on argon pressure