El metabolismo social. Historia, métodos y principales aportaciones

El concepto de Metabolismo Social ha cobrado una gran importancia dentro de los estudios que tratan de comprender las interacciones entre la sociedad y el medio ambiente. Desde la década de 1990 su impacto ha crecido de manera exponencial siendo utilizado por numerosos autores provenientes de diferentes disciplinas científicas. El objetivo de este trabajo es ofrecer un estado de la cuestión de este enfoque. Se revisan los orígenes y la historia del concepto, su reciente éxito, las herramientas metodológicas que se han utilizado en el marco de sus estudios, así como los principales resultados que ha generado.El concepto de Metabolismo Social ha cobrado una gran importancia dentro de los estudios que tratan de comprender las interacciones entre la sociedad y el medio ambiente. Desde la década de 1990 su impacto ha crecido de manera exponencial siendo utilizado por numerosos autores provenientes de diferentes disciplinas científicas. El objetivo de este trabajo es ofrecer un estado de la cuestión de este enfoque. Se revisan los orígenes y la historia del concepto, su reciente éxito, las herramientas metodológicas que se han utilizado en el marco de sus estudios, así como los principales resultados que ha generado.El concepto de Metabolismo Social ha cobrado una gran importancia dentro de los estudios que tratan de comprender las interacciones entre la sociedad y el medio ambiente. Desde la década de 1990 su impacto ha crecido de manera exponencial siendo utilizado por numerosos autores provenientes de diferentes disciplinas científicas. El objetivo de este trabajo es ofrecer un estado de la cuestión de este enfoque. Se revisan los orígenes y la historia del concepto, su reciente éxito, las herramientas metodológicas que se han utilizado en el marco de sus estudios, así como los principales resultados que ha generado.The concept of Social Metabolism has gained a growing importance among the studies that try to understand human-nature interactions. Its impact has grown exponentially since the 1990s, being used by many authors representing different scientific disciplines. The main goal of this paper is to  provide a review of the state of the art concerning the social metabolism approach. We reconstruct the origins and history of the concept, its recent success, the methodological tools used and the principal findings it has generated

Characterization of electricity demand based on energy consumption data from Colombia

The development of dynamic energy distribution grids to optimize energy resources has become very important at the international level in recent years. A very important step in this development is to be able to characterize the population based on their consumption behaviour. However, traditional consumption meters that report information at a monthly rate provide little information for in-depth analysis. In Colombia, this has changed in recent years due to the implementation and integration of advanced metering infrastructure (AMI). This infrastructure allows to record consumption values in small time intervals, and the available data then allows for the execution of many analysis mechanisms. In this paper we present an analysis of the electricity demand profile from a new dataset of energy consumption in Colombia. A characterization of the users demand profiles is presented using a k-means clustering procedure. Whit this customer segmentation technique we show that is possible identify customer consumption patterns and to identify anomalies in the system. In addition, this type of analysis also allows to assess changes in the consumption pattern of users due to social measures such as those resulting from the coronavirus disease (COVID-19) pandemic

Historia de las algunas especialidades médicas en Pinar del Río (primera parte)

La investigación presenta un estudio del desarrollo de la especialidad de Medicina Interna en Pinar del Río. El objetivo propuesto fue valorar el desarrollo de las especialidades de Medicina Interna, Medicina General Integral y Gastroenterología en Pinar del Río. La metodología utilizada es la que plantea la Filosofía Marxista. Es una investigación novedosa por cuanto existe muy poca información sobre esta temática y ofrece valiosos elementos basados en la escasa literatura que existe del tema y en los testimonios de los propios protagonistas. Puede servir como material de consulta y para futuras investigaciones, teniendo en cuenta los resultados y conclusiones expresan que el desarrollo de médico en Pinar del Río fue el producto del propio incremento de la información científica, las necesidades de la población y una voluntad política que se hizo realidad con el triunfo de la Revolución

Pioderma gangrenosa en un paciente diabético tipo 2: reporte de un caso

We are presenting a case of patient with type 2 diabetes mellitus that was diagnosed with a soft tissue infection in the lower extremity. This was initially treated as cellulitis and antibiotic treatment was initiated. Due to a poor clinical response, the diagnosis of pyoderma gangrenosum was proposed as part of the differential diagnosis. Skin biopsies and pathology confirmed the diagnosis of pyoderma gangrenosum that had a satisfactory response to steroid treatment.Se presenta el caso de una paciente diabética tipo 2 que inicialmente fue diagnosticada como una celulitis complicada del miembro inferior izquierdo, pero ante la pobre respuesta con el tratamiento antibiótico, se consideró el diagnóstico de pioderma gangrenosa, confirmado anatomopatológicamente, con respuesta satisfactoria al tratamiento esteroideo tópico

El metabolismo social : historia, métodos y principales aportaciones

El concepto de Metabolismo Social ha cobrado una gran importancia dentro de los estudios que tratan de comprender las interacciones entre la sociedad y el medio ambiente. Desde la década de 1990 su impacto ha crecido de manera exponencial siendo utilizado por numerosos autores provenientes de diferentes disciplinas científicas. El objetivo de este trabajo es ofrecer un estado de la cuestión de este enfoque. Se revisan los orígenes y la historia del concepto, su reciente éxito, las herramientas metodológicas que se han utilizado en el marco de sus estudios, así como los principales resultados que ha generado.The concept of Social Metabolism has gained a growing importance among the studies that try to understand human-nature interactions. Its impact has grown exponentially since the 1990s, being used by many authors representing different scientific disciplines. The main goal of this paper is to  provide a review of the state of the art concerning the social metabolism approach. We reconstruct the origins and history of the concept, its recent success, the methodological tools used and the principal findings it has generated

Mediterranean diet and risk of breast cancer: An umbrella review

Background The Mediterranean Diet (MedDiet) is a healthy dietary pattern which has been related to a lower risk of certain chronic diseases, such as some cancers. However, its role in breast cancer development remains unclear. This umbrella review aims to summarize the highest available evidence on MedDiet and breast cancer risk. Methods Pubmed, Web of Science, and Scopus electronic platforms were searched for relevant systematic reviews and meta-analyses. The selection criteria included systematic reviews with or without meta-analysis including women aged 18 years or older which evaluated the adherence to a MedDiet as the exposure and incidence of breast cancer as the outcome variable. Overlapping and quality of the reviews using AMSTAR-2 tool were independently assessed by two authors. Results Five systematic reviews and six systematic reviews with meta-analysis were included. Overall, 4 systematic reviews – two with and two without meta-analysis – were rated as of high quality. An inverse association was found in 5 of the 9 reviews which evaluated the role of MedDiet on the risk of total breast cancer. The meta-analyses showed moderate-high heterogeneity. The risk reduction seemed to be more consistent among postmenopausal women. No association was found for MedDiet among premenopausal women. Conclusions The results of this umbrella review suggest that adherence to a MedDiet pattern had a protective effect on the risk of breast cancer, especially for postmenopausal breast cancer. The stratification of breast cancer cases and conducting high-quality reviews are aspects needed to overcome the current results’ heterogeneity and to improve knowledge in this field.Funding for open access charge: Universidad de Málaga / CBU

454-Pyrosequencing Analysis of Bacterial Communities from Autotrophic Nitrogen Removal Bioreactors Utilizing Universal Primers: Effect of Annealing Temperature

Identification of anaerobic ammonium oxidizing (anammox) bacteria by molecular tools aimed at the evaluation of bacterial diversity in autotrophic nitrogen removal systems is limited by the difficulty to design universal primers for the Bacteria domain able to amplify the anammox 16S rRNA genes. A metagenomic analysis (pyrosequencing) of total bacterial diversity including anammox population in five autotrophic nitrogen removal technologies, two bench-scale models (MBR and Low Temperature CANON) and three full-scale bioreactors (anammox, CANON, and DEMON), was successfully carried out by optimization of primer selection and PCR conditions (annealing temperature). The universal primer 530F was identified as the best candidate for total bacteria and anammox bacteria diversity coverage. Salt-adjusted optimum annealing temperature of primer 530F was calculated (47°C) and hence a range of annealing temperatures of 44–49°C was tested. Pyrosequencing data showed that annealing temperature of 45°C yielded the best results in terms of species richness and diversity for all bioreactors analyzed

The scientific-technical e-book in the Spanish market: an overview from the subscription agent perspective

Management, trade strategies, marketing and users of scientific-technical e-books in the Spanish market are analysed in this paper, from the point of view of the main subscription agents. Swets and Ebsco country managers in Spain were interviewed to obtain a general overview. The most widely held opinion in the scholarly context –researchers, librarians, publishers and subscription agents- is that the scholarly e-book is being accepted much more slowly than e-journals but will become more and more important

Respuesta celular diferencial a ΔK107, una mutante natural de apolipoproteina A-I humana

El objetivo de este trabajo es valuar si las respuestas celulares a ΔK107 están modificadas, y probar el papel funcional del dominio helicoidal central tipo Y, comparando el comportamiento de ΔK107 con apoAI tipo salvaje y una mutante donde el residuo equivalente del segmento helicoidal tipo Y de la región C terminal fue eliminado (ΔK226).Facultad de Ciencias Médica

Respuesta celular diferencial a ΔK107, una mutante natural de apolipoproteina A-I humana

El objetivo de este trabajo es valuar si las respuestas celulares a ΔK107 están modificadas, y probar el papel funcional del dominio helicoidal central tipo Y, comparando el comportamiento de ΔK107 con apoAI tipo salvaje y una mutante donde el residuo equivalente del segmento helicoidal tipo Y de la región C terminal fue eliminado (ΔK226).Facultad de Ciencias Médica