Nuevas aportaciones al periglaciarismo galaico-astur

[Resumen] La presente comunicación es una síntesis bibliográfica de las observaciones periglaciares en zonas próximas al limite galaico-astur y consideradas por diferentes auto res. Como nueva contribución se señala la existencia de un conjunto de formas y acumulaciones sedimentarias como consecuencia del ¿iclo hielo-deshielo, con fenómenos de gelivación, solifluxión, materiales detríticos ordenados y crioturbaciones, que han tenido su influencia en la morfologia del relieve. La interpretación de la génesis de los depósitos se realiza con auxilio de métodos y técnicas modernas de sedimentos[Abstract] The present communication is a bibliographical review of the periglaciar observations in regions close to the boundary galaico-astur. As a new contribution we report the existence of a conjunt of forms and sedimentary . accumulations due to the freeze-thaw cycle, with fenomena of gelifraction , solufluction, orderly detritical materials and geliturbation, which affected the relief morphology. The interpretation of the deposit, origins was realized using modern methods and technics of sediment

Nota sobre depósitos estefaniense B. y cuaternario de la Punta del Cuerno (límite galaico-astur)

[Resumen] En esta comunicaclon se realiza el estudio sedimentológico comparativo y diferencial entre depósitos antíguos pertenecientes al Estefaniense B. y Cuaternario de la punta del Cuerno y se establece el proceso de formación de los mismos[Abstract] This communication is a comparative and differential sedimentological study of the old deposits belonging to the Stephanian B. and Quaternary of the "Cuerno" promontory. The genesis of these deposits is stablishe

Xyloglucan, a Plant Polymer with Barrier Protective Properties over the Mucous Membranes: An Overview

Disruption of the epithelial barrier function has been recently associated with a variety of diseases, mainly at intestinal level, but also affecting the respiratory epithelium and other mucosal barriers. Non-pharmacological approaches such as xyloglucan, with demonstrated protective barrier properties, are proposed as new alternatives for the management of a wide range of diseases, for which mucosal disruption and, particularly, tight junction alterations, is a common characteristic. Xyloglucan, a natural polysaccharide derived from tamarind seeds, possesses a "mucin-like" molecular structure that confers mucoadhesive properties, allowing xyloglucan formulations to act as a barrier capable of reducing bacterial adherence and invasion and to preserve tight junctions and paracellular flux, as observed in different in vitro and in vivo studies. In clinical trials, xyloglucan has been seen to reduce symptoms of gastroenteritis in adults and children, nasal disorders and dry eye syndrome. Similar mucosal protectors containing reticulated proteins have also been useful for the treatment of irritable bowel syndrome and urinary tract infections. The role of xyloglucan in other disorders with mucosal disruption, such as dermatological or other infectious diseases, deserves further research. In conclusion, xyloglucan, endowed with film-forming protective barrier properties, is a safe non-pharmacological alternative for the management of different diseases, such as gastrointestinal and nasal disorders

Las bases de la mejora: la detección del problema y estrategia a aplicar

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Reorientation and coupling effects in polarized heavy ion fusion

A simple model to understand the reaction mechanisms in the fusion of polarized heavy ions based on tidal symmetry, the sudden approximation and barrier penetration is presented. The model is applied to 23Na+208Pb. The effect of the ground state reorientation and the coupling to rotational states is studied. Enhancement of the sub-barrier fusion cross sections and the fusion J-moments just above the barrier are found. The polarization of the projectile affects strongly the fusion around and below the Coulomb barrier.Dirección General de Investigaciones Científicas y Técnicas PB89-063

Statistical Considerations when Communicating Health Risks: Experiences from Canada, Chile, Ecuador and England Facing COVID-19

Communicating statistics in health risk communication is a fundamental part of managing public health emergencies. Effective communication requires careful planning and the anticipation of possible information demands from the population. The information should be clear, relevant, easy to understand, timely, accurate and precise, allowing the public to make informed decisions about protective behaviours. COVID-19, being a new disease, with little known about its characteristics and effects, has challenged governments and healthcare systems in all countries. This article discusses the statistical issues involved, and the experiences of risk communication in four countries – Canada, Chile, Ecuador and England. These countries have communicated risks differently, partly because of their different healthcare systems, as well as socioeconomic, cultural and political realities. During a pandemic, health authorities and governments must step up to the challenge of communicating statistical information under pressure and with urgency, when little is known about the disease, the situation is dynamic and evolving, and the general public is gripped with fear and anxiety. This is in addition to the existing challenges relating to the generation of data of different quality by diverse sources, and a public with varying levels of statistical literacy. From a statistical perspective, communiqués about risks and numbers should convey the uncertainty there is about the information, the inherent variabilities in the system, the precision and accuracy of estimates and the assumptions behind projections. Complex technical concepts, such as ‘flattening the curve’, ‘range in risk estimates’ and ‘projected trends,’ should be explained

Childhood participation experiences in the memory

This article is based on the findings of a broader research project entitled 'Childhood Participation and Citizenship Building', which examined the medium-term effects of intense experiences of participation in childhood within both the school environment and those of leisure-time and community education. The results presented in this article refer specifically to the memories subjects hold of their participation in these childhood experiences. The study combined quantitative (using a questionnaire) and qualitative approaches (conducting in-depth interviews). The results obtained contribute to strengthening the idea explicit or implicit in all pedagogies that seek to promote child participation that such participation is not only a right, but that it also contributes to the quality of educational experiences