El lenguaje gráfico de la química : una perspectiva para el análisis de errores

A pesar de la cotidianeidad del fenómeno de disolución, su comprensión es difícil para los estudiantes. El objetivo de este trabajo es analizar errores de estudiantes que realizan representaciones gráficas sobre “ cloruro de sodio disuelto en agua”, mediante la definición, diferenciación y detección de “Iconemas Químicos” e “Íconos Químicos” (IQ), elementos gráficos derivados de la semiótica de la imagen

Журналистское образование в Кыргызстане: проблем много, но поэтапные изменения возможны (Journalism education in Kyrgyzstan : there are many problems, but gradual changes are possible)

An article based on a needs assessment commissioned by the "Media Dialogue" project funded by the European Union which was conducted in April 2021 taking stock of the state of journalism education in Kyrgyzstan with the view to the best ways of modernising the current teaching practices and the curriculum content. The report recommends introducing practical elements into the existing curricula in close cooperation with the country's mainstream and progressive media outlets and setting up a system of work placements for students based on genuine needs and industry driven criteria. This is reflected in the article

Concept note : a democratisation programme in Ukraine

A technical report on field research in Ukraine identifying the most promising areas in the sphere of the media and civil society for deployment of DANIDA resources in future development and democratisaton programmes funded by the Danish Foreign Ministry

Concept note : a democratisation programme in Georgia

A technical report identifying optimal ways of engagement with the Georgian civil society to promote democracy and human rights as part of development programmes funded by DANIDA - the development arm of the Ministry of Foreign Affairs of Denmark

Conflict transformation and history teaching: social psychological theory and its contributions

The aim of this introductory chapter is to render intelligible how history teaching can be enriched with knowledge of social psychological theories that deal with the issue of conflict transformation and partcularly the notions of prejudice reduction and reconciliation. A major aim of history teaching is to engage students with historical texts, establish historical significance, identify continuity and change, analyse cause and consequence, take historical perspectives and understand the ethical dimensions of historical interpretations. Such teaching, enriched with social psychological theory, will enlarge the notion of historical literacy into a study of historical culture and historical consciousness in the classroom so that students become reflective of the role of collective memory and history teaching in processes of conflict transformation and understand the ways in which various forms of historical consciousness relate the past, present and future. This is what the editors of this volume call an interdisciplinary paradigm of transformative history teachin

Evidence of Erroneous Deductions and their Possible Effects on the Initial Learning of the Concept of Cell in Primary School

En este trabajo se han obtenido evidencias sobre dificultades para procesar información referida al concepto de célula en estudiantes de escuela primaria. Se identificaron posibles deducciones erróneas que podrían establecer estudiantes de 5to grado (10-11 años) que intentaran procesar cognitivamente, y por primera vez, la información de libros de texto escolares y del discurso docente sobre el tema y se diseñó un cuestionario con el objetivo de hallar evidencia de estas deducciones. Fue posible detectar algunas evidencias de construcción de modelos explicativos incipientes siendo destacable la aparición de modelos consistentes, pero científicamente incorrectos. Luego, se aplicó el mismo cuestionario a estudiantes de 6to y 7mo grado (11-13 años) y se observó que algunos patrones de respuesta se mantenían e, incluso, se afianzaban. Estos modelos podrían dar cuenta del origen de errores o dificultades en la comprensión del concepto célula en estudiantes de niveles educativos subsiguientes.In this paper we have obtained some evidence on difficulties in processing information about the cell among primary school students. We identified possible misleading deductions that 5th grade students (10-11 years) could establish when trying, for the first time, to cognitively process information on the subject from school textbooks and teacher discourse, and we designed a questionnaire to find evidence of these deductions. It was possible to detect some evidence of incipient explanatory models. It is important to highlight the emergence of consistent but scientifically incorrect models. Then, the same questionnaire was applied to 6th and 7th grade students (11-13 years), and it was found that some response patterns prevailed and were even reinforced. These models could account for the origin of errors or difficulties in understanding the concept of cell among students of subsequent educational levels.Fil: Edelsztein, Valeria Carolina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Formación e Investigación en Enseñanza de las Ciencias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Galagovsky, Lydia Raquel. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Formación e Investigación en Enseñanza de las Ciencias; Argentin

Robust and persistent reactivation of SIV and HIV by N-803 and depletion of CD8+ cells

Human immunodeficiency virus (HIV) persists indefinitely in individuals with HIV who receive antiretroviral therapy (ART) owing to a reservoir of latently infected cells that contain replication-competent virus1–4. Here, to better understand the mechanisms responsible for latency persistence and reversal, we used the interleukin-15 superagonist N-803 in conjunction with the depletion of CD8+ lymphocytes in ART-treated macaques infected with simian immunodeficiency virus (SIV). Although N-803 alone did not reactivate virus production, its administration after the depletion of CD8+ lymphocytes in conjunction with ART treatment induced robust and persistent reactivation of the virus in vivo. We found viraemia of more than 60 copies per ml in all macaques (n = 14; 100%) and in 41 out of a total of 56 samples (73.2%) that were collected each week after N-803 administration. Notably, concordant results were obtained in ART-treated HIV-infected humanized mice. In addition, we observed that co-culture with CD8+ T cells blocked the in vitro latency-reversing effect of N-803 on primary human CD4+ T cells that were latently infected with HIV. These results advance our understanding of the mechanisms responsible for latency reversal and lentivirus reactivation during ART-suppressed infection

El lenguaje gráfico de la química : una perspectiva para el análisis de errores

A pesar de la cotidianeidad del fenómeno de disolución, su comprensión es difícil para los estudiantes. El objetivo de este trabajo es analizar errores de estudiantes que realizan representaciones gráficas sobre " cloruro de sodio disuelto en agua", mediante la definición, diferenciación y detección de "Iconemas Químicos" e "Íconos Químicos" (IQ), elementos gráficos derivados de la semiótica de la imagen