Communication, Education and social movements online: New Imaginaries, old utopias

Due to the Internet arrival, the Social Movements, alternatives and critics, have considered it as a new scene capable to renew the traditional ways of intervention and collective action. Besides it is open the possibility to outdo the activism atomization of the social movements, organizing them in a global strategy, articulated upon nodes of local intervention. There is a renewed illusion, due to this inclusion of social movements in the Internet, understood as a new pedagogical tool for the organization, the debate, the broadcast and the social mobilization, which wake up old social utopias, that nowadays they are proposed as real and feasible utopias. This way we regard that the role of the citizenship, as a participant in the political power, could be replaced by a mere contract of enjoyment of goods and services in the Internet worldwide (Pérez Luño, 2004). So, the individual may find satisfied the technological utopia which includes the promise of social change. The tension generated by these to powers seems to be granting a privilege to an instrumental use of New Technologies in the transformation processes that promote the social movements. This way we may misunderstand the managing of utopias with simple strategies of online communication and education. Therefore, it is needed to overflow (in a metaphorical way) that instrumental interpretation of the Internet to release deep structural transformations and new imaginaries related to the utopia of a free communication and education media, at the service of a democratical society development.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech

Development of Taenia pisiformis in golden hamster (Mesocricetus auratus)

The life cycle of Taenia pisiformis includes canines as definitive hosts and rabbits as intermediate hosts. Golden hamster (Mesocricetus auratus) is a rodent that has been successfully used as experimental model of Taenia solium taeniosis. In the present study we describe the course of T. pisiformis infection in experimentally infected golden hamsters. Ten females, treated with methyl-prednisolone acetate were infected with three T. pisiformis cysticerci each one excised from one rabbit. Proglottids released in faeces and adults recovered during necropsy showed that all animals were infected. Eggs obtained from the hamsters' tapeworms, were assessed for viability using trypan blue or propidium iodide stains. Afterwards, some rabbits were inoculated with eggs, necropsy was performed after seven weeks and viable cysticerci were obtained. Our results demonstrate that the experimental model of adult Taenia pisiformis in golden hamster can replace the use of canines in order to study this parasite and to provide eggs and adult tapeworms to be used in different types of experiments

Observatorio por la Educación Inclusiva en la formación inicial del profesorado

Esta comunicación presenta parte de la experiencia formativa en la materia ‘Competencias relacionales en el aula de inclusiva’ del cuarto curso del grado en educación primaria de la Universidad de Málaga. Ante la gran presencia de enfoques segregadores, partimos de la necesidad de que nuestro alumnado tenga una conciencia inclusiva crítica para su futura práctica profesional docente. Es por ello que explicamos el trabajo en torno a la creación de un observatorio sobre mitos y realidades en torno a la inclusión social y educativa, destacando temas tales como la diversidad sexual, las relaciones afectivo-sexuales de las personas con discapacidad, la gordofobia o la presencia de personas con diversidad funcional en la publicidad. Estos proyectos realizados por el alumnado de la materia concluyen en propuestas didácticas, curriculares y políticas para distintos sectores de la comunidad educativa, materializándose en blogs, vídeos, cuentos infantiles, etc.Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tec

Mechanical properties and electrical surface charges of microfibrillated cellulose/imidazole-modified polyketone composite membranes

In the present work, microfibrillated cellulose (MFC) suspensions were produced by high-pressure homogenization and subsequently used to fabricate MFC membranes (C-1) by vacuum filtration followed by hot-pressing. A polyketone (PK50) was chemically modified by Paal-Knorr reaction to graft imidazole (IM) functional groups along its backbone structure. The resulting polymer is referred to as PK50IM80. By solution impregnation, C-1 was immersed in an aqueous solution of PK50IM80 and subsequently hot pressed, resulting in the fabrication of MFC/PK50IM80 composite membranes (C-IMP). Another method, referred to as solution mixing, consisted in adding MFC into an aqueous solution of PK50IM80 followed by vacuum filtration and hot-pressing to obtain MFC/PK50IM80 composite membranes (C-MEZC). C-IMP and C-MEZC were characterized by a wide range of analytical techniques including, X-ray photoelectron spectroscopy, Fourier-transform infrared chemical imaging, scanning electron microscopy, atomic force microscopy, dynamical mechanical analysis, tensile testing as well as streaming zeta potential, and compared to C-1 (reference material). The results suggested that C-IMP possess a more homogeneous distribution of PK50IM80 at their surface compared to C-MEZC. C-IMP was found to possess significantly enhanced Young's modulus compared to C-1 and C-MEZC. The tensile strength of C-IMP was found to improve significantly compared to C-1, whereas C-1 possessed significantly higher tensile index than C-IMP and C-MEZC. Furthermore, the presence of PK50IM80 at the surface of MFC was found to significantly shift the isoelectric point (IEP) of the membranes from pH 2.3 to a maximum value of 4.5 for C-IMP. Above the IEP, C-IMP and C-MEZC were found to possess significantly less negative electrical surface charges (plateau value of -25 mV at pH 10) when compared to C-1 (plateau value of -42 mV at pH 10). Our approach may have implication to broaden the range of filtration applications of MFC-based membranes

Osteoarticular Expression of Musashi-1 in an Experimental Model of Arthritis

Background. Collagen-induced arthritis (CIA), a murine experimental disease model induced by immunization with type II collagen (CII), is used to evaluate novel therapeutic strategies for rheumatoid arthritis. Adult stem cell marker Musashi-1 (Msi1) plays an important role in regulating the maintenance and differentiation of stem/precursor cells. The objectives of this investigation were to perform a morphological study of the experimental CIA model, evaluate the effect of TNFα-blocker (etanercept) treatment, and determine the immunohistochemical expression of Msi1 protein. Methods. CIA was induced in 50 male DBA1/J mice for analyses of tissue and serum cytokine; clinical and morphological lesions in limbs; and immunohistochemical expression of Msi1. Results. Clinically, TNFα-blocker treatment attenuated CIA on day 32 after immunization (). Msi1 protein expression was significantly higher in joints damaged by CIA than in those with no lesions () and was related to the severity of the lesions (Spearman’s rho = 0.775, ). Conclusions. Treatment with etanercept attenuates osteoarticular lesions in the murine CIA model. Osteoarticular expression of Msi1 protein is increased in joints with CIA-induced lesion and absent in nonlesioned joints, suggesting that this protein is expressed when the lesion is produced in order to favor tissue repair.This investigation was partially supported by Research Group #CTS-138 (Junta de Andalucía, Spain)

The insecticides permethrin and chlorpyrifos show limited genotoxicity and no leukemogenic potential in human and murine hematopoietic stem progenitor cells

Altres ajuts: European Food and Safety Authority, EFSA.PRAS.2018.04-CT1; Consejo Nacional de Ciencia y Tecnología, CB-2012-01-183467; Centro de Investigación Biomédica en Red en Cáncer, PID2019-104695RBI00; Asociación Española Contra el Cáncer, AECC INVES211226MOLI

Lesiones vertebrales postraumáticas

Introducción: Las lesiones raquídeas son frecuentes en hombres adultos jóvenes. Reconocer la cinemática ayuda a disminuir la tasa de diagnósticos tardíos, principalmente si hay trastornos de la conciencia. Las fracturas vertebrales pueden ser únicas o múltiples, y asociarse con lesiones extravertebrales. Los objetivos de este estudio fueron analizar la distribución de la lesión según el mecanismo de producción, caracterizar el cuadro neurológico, evaluar el patrón de lesión y la asociación con lesiones extravertebrales, y analizar el tratamiento. Materiales y Métodos: Estudio multicéntrico, prospectivo de pacientes con lesiones vertebrales postrauma, que ingresaron entre el 1 de julio de 2018 y el 30 de junio de 2020. Se analizaron los siguientes parámetros: edad, sexo, cinemática, cuadro neurológico, sector afectado, patrón de lesión, lesiones extravertebrales asociadas. Resultados: Se evaluó a 281 pacientes (60% hombres) con 400 lesiones vertebrales y 118 extravertebrales que, en 62 casos, conformaban un cuadro de politraumatismo; 147 con trauma por caída de altura y 98, por accidente de tránsito. El cuadro neurológico más observado fue ASIA E (8 casos), no determinado al ingreso. El sector T2-L5 fue el más afectado, en su mayoría, por lesiones por compresión. Las lesiones extravertebrales más frecuentes fueron el trauma de cráneo y de tórax; hubo un caso de SCIWORA y un óbito temprano. Conclusiones: Los sectores raquídeos más afectados fueron: el toracolumbar, el torácico y el lumbar; las lesiones suelen deberse a caídas de altura y suelen ser únicas, sin cuadro neurológico. El tratamiento se decide según la estabilidad y el cuadro neurológico

The evolution of the ventilatory ratio is a prognostic factor in mechanically ventilated COVID-19 ARDS patients

Background: Mortality due to COVID-19 is high, especially in patients requiring mechanical ventilation. The purpose of the study is to investigate associations between mortality and variables measured during the first three days of mechanical ventilation in patients with COVID-19 intubated at ICU admission. Methods: Multicenter, observational, cohort study includes consecutive patients with COVID-19 admitted to 44 Spanish ICUs between February 25 and July 31, 2020, who required intubation at ICU admission and mechanical ventilation for more than three days. We collected demographic and clinical data prior to admission; information about clinical evolution at days 1 and 3 of mechanical ventilation; and outcomes. Results: Of the 2,095 patients with COVID-19 admitted to the ICU, 1,118 (53.3%) were intubated at day 1 and remained under mechanical ventilation at day three. From days 1 to 3, PaO2/FiO2 increased from 115.6 [80.0-171.2] to 180.0 [135.4-227.9] mmHg and the ventilatory ratio from 1.73 [1.33-2.25] to 1.96 [1.61-2.40]. In-hospital mortality was 38.7%. A higher increase between ICU admission and day 3 in the ventilatory ratio (OR 1.04 [CI 1.01-1.07], p = 0.030) and creatinine levels (OR 1.05 [CI 1.01-1.09], p = 0.005) and a lower increase in platelet counts (OR 0.96 [CI 0.93-1.00], p = 0.037) were independently associated with a higher risk of death. No association between mortality and the PaO2/FiO2 variation was observed (OR 0.99 [CI 0.95 to 1.02], p = 0.47). Conclusions: Higher ventilatory ratio and its increase at day 3 is associated with mortality in patients with COVID-19 receiving mechanical ventilation at ICU admission. No association was found in the PaO2/FiO2 variation

Zoonosis, cambio climático y sociedad

La sociedad contemporánea se enfrenta a uno de los retos más grandes de la historia humana, el calentamiento global, mismo que acarrea enormes consecuencias, tales como los disturbios climáticos, así como los patrones de las enfermedades de origen animal transmisibles al hombre. Precisamente ante este escenario las instituciones educativas de nivel superior deben dar cumplimiento a su responsabilidad y ser las generadoras de alternativas de solución mediante el trabajo especializado de investigación; y para ello, la pesquisa científica es la mejor de las alternativas a nuestro alcance para comprender y encarar estos desafíos.Universidad Autónoma del Estado de México y Ediciones y Gráficos Eón, S.A. de C.V