187 research outputs found

    Community Wireless Networks for the development of the social fabric and the democratization of information

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    Durante mucho tiempo el descubrimiento de las tecnologías inalámbricas ha modificado la dinámica de las sociedades productoras de diferente manera. En América Latina y el Caribe el uso de redes inalámbricas comunitario utilizando tecnología WIFI ha sido adoptado en proyectos impulsados por comunidades organizadas, programas de cooperación internacional, emprendimientos independientes y, en algunos casos, por gobiernos locales, las iniciativas gubernamentales para brindar conectividad en zonas aisladas se ha encaminado al uso de tecnologías que permiten la conexión a sitios remotos. Se estudió la incidencia de las tecnologías dentro del marco socioeconómico en diferentes lugares del mundo y se analizó qué factores han hecho posible que las sociedades progresen o por el contrario se limiten ante la explotación del conocimiento. Luego de realizar estos estudios se puede entrar a proponer soluciones desde diferentes temáticas abordándolas dentro de tres grandes áreas: 1. Infraestructura tecnológica 2. Contenidos digitales 3. Apropiación social y comunicación de actores sociales La Alta Consejería Distrital de TIC en armonía con el Articulo 44 “Programa TIC para Gobierno Digital, Ciudad Inteligente y Sociedad del Conocimiento y del Emprendimiento”, del Plan de Desarrollo de “Bogotá Humana” (Alcaldía Mayor de Bogotá, 2012) y en la dirección de hacer de Bogotá una ciudad digital e Inteligente, se encuentra desarrollando un número determinado de proyectos armonizados entre sí cuya base fundamental es entregar a la ciudad un mínimo vital de información de manera que se construya tejido social y se democratice la información. Esto se implementara mediante un proyecto de redes inalámbricas comunitarias que permitirá ESP. GERENCIA INTEGRAL DE PROYECTOS realmente una comunicación entre los diferentes actores sociales, sustituyendo la comunicación independiente que actualmente manejan las comunidades soportada en los canales tradicionales (voz a voz, perifoneo, carteles, etc) y contribuyendo al direccionamiento estratégico de las organizaciones en pro de mejorar la calidad de vida de todos los habitantes del sector.For a long time the discovery of wireless technologies has changed the dynamics of the producing companies differently. In Latin America and the Caribbean using community wireless networks using WiFi technology has been adopted in projects promoted by organized communities, international cooperation programs, independent enterprises and, in some cases, local governments, government initiatives to provide connectivity in areas isolated has been directed to the use of technologies that allow connection to remote sites. The incidence of technologies within the socio-economic framework in different parts of the world was studied and analyzed which factors have made it possible for companies progress or otherwise is limited to the exploitation of knowledge. After performing these studies can enter, propose solutions from different addressing them within three thematic areas: 1. Technological Infrastructure 2. Digital Content 3. Social appropriation and communication of stakeholders The High Council District ICT in harmony with Article 44 "ICT Programme for Digital Government, Smart City and Knowledge Society and Entrepreneurship" Development Plan "Bogotá Humana" (Mayor of Bogota, 2012) and the direction of making Bogotá a digital and intelligent city, is developing a number of projects which harmonized with each other foundation is to give the city a minimum of vital information so that social fabric is built and democratize information. This was implemented through a project of community wireless networks that actually allow communication between different stakeholders, replacing the independent media now running communities supported in traditional channels (voice to voice, loudspeakers, posters, etc) and contribute to addressing strategic organizations towards improving the quality of life for everyone in the sector

    Caracterização mecânica de paredes de alvenaria de pedra

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    O presente trabalho tem como principal objectivo a caracterização mecânica de paredes de alvenaria de pedra. O tema tratado surge na sequência de um trabalho de investigação desenvolvido no Departamento de Engenharia Civil da FCT UNL [21]. A alvenaria de pedra está presente em grande parte das construções antigas existentes em Portugal. O conhecimento das propriedades das paredes de alvenaria, desde a composição da argamassa às características das pedras e da alvenaria como material, nomeadamente a capacidade resistente e o módulo de elasticidade, são importantes para sustentar um correcto diagnóstico do real estado da estrutura e garantir assim a escolha dos materiais e técnicas que melhor se adequam a uma intervenção de reabilitação arquitectónica e/ou estrutural. Do ponto de vista estrutural, a alvenaria de pedra deve ser considerada como um meio heterogéneo cujas propriedades dependem das propriedades dos componentes [14]. Descreve-se um ensaio mecânico realizado sobre um modelo experimental com dimensões de 0,80mx1,20mx0,40m no laboratório do DEC da FCT UNL e um ensaio in-situ de macacos planos duplos, realizado na Reitora da Universidade Nova de Lisboa, em Campolide. Nos Capítulos 1 e 2 faz-se uma abordagem teórica de forma a servir de enquadramento ao tema, efectua-se uma breve caracterização construtiva dos edifícios com paredes de alvenaria de pedra, seguindo-se uma pesquisa bibliográfica sobre trabalhos realizados nesta área. No Capítulos 3 faz-se a descrição dos ensaios realizados. A interpretação e análise dos resultados é feita no Capítulo 4 e no Capítulo 5 sintetizam-se as conclusões do estudo

    The Spalt Transcription Factors Generate the Transcriptional Landscape of the Drosophila melanogaster Wing Pouch Central Region

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    The Drosophila genes spalt major (salm) and spalt-related (salr) encode Zn-finger transcription factors regulated by the Decapentaplegic (Dpp) signalling pathway in the wing imaginal disc. The function of these genes is required for cell survival and proliferation in the central region of the wing disc, and also for vein patterning in the lateral regions. The identification of direct Salm and Salr target genes, and the analysis of their functions, are critical steps towards understanding the genetic control of growth and patterning of the Drosophila wing imaginal disc by the Dpp pathway. To identify candidate Salm/Salr target genes, we have compared the expression profile of salm/salr knockdown wing discs with control discs in microarray experiments. We studied by in situ hybridization the expression pattern of the genes whose mRNA levels varied significantly, and uncovered a complex transcription landscape regulated by the Spalt proteins in the wing disc. Interestingly, candidate Salm/Salr targets include genes which expression is turned off and genes which expression is positively regulated by Salm/Salr. Furthermore, loss-of-function phenotypic analysis of these genes indicates, for a fraction of them, a requirement for wing growth and patterning. The identification and analysis of candidate Salm/Salr target genes opens a new avenue to reconstruct the genetic structure of the wing, linking the activity of the Dpp pathway to the development of this epithelial tissueThis work was supported by institutional grants from Fundación Ramón Areces and Banco de Santander to the Centro de Biología Molecular Severo Ochoa. BFU2009-09403, BFU2012-33994, CSD2007-00008 (http://www.mineco.gob.es/portal/site/mineco/). We acknowledge support of the publication fee by the CSIC Open Access Publication Support Initiative through its Unit of Information Resources for Research (URICI). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscrip

    Chilean Digital Press Coverage of the Relation between Diet and Mental Health

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    Chile has a serious public health problem due to the high prevalence of both unhealthy dietary patterns and mental illnesses. Given that dietary quality is positively associated with the quality of mental health, it is urgent that healthy dietary patterns be promoted among Chileans. The WHO recommends the use of mass media for the dissemination of knowledge about mental health. Since health news affect people’s attitudes and health behaviors, this study analyzed the coverage by three Chilean online newspapers with the largest readership regarding the relation between diet and mental health in 2016. A previously constructed corpus of 2551 news items about food was analyzed quantitatively. The results show that the relevance of the topic diet and mental health was low in all three newspapers. The most frequent type of information was on “foods” and not “nutrients” that “benefit”—not that “damage”—mental health. The quality of the news was poor as a narrow range of sources was found. An individual responsibility frame predominated in the information to the detriment of a public health frame.Fil: Sanchez Sabate, Rubén. Universidad de La Frontera; ChileFil: Zunino, Esteban. Universidad Nacional de Cuyo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Ciencias Humanas, Sociales y Ambientales; ArgentinaFil: Badilla Briones, Yasna. Universidad de La Frontera; ChileFil: Celedón Celis, Natalia. Universidad de La Frontera; ChileFil: Caro Saldías, Daniel. Universidad de La Frontera; Chil

    Genome-wide phenotypic RNAi screen in the Drosophila wing: Global parameters

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    We have screened a collection of UAS-RNAi lines targeting 10,920 Drosophila protein-coding genes for phenotypes in the adult wing. We identified 3653 genes (33%) whose knockdown causes either larval/pupal lethality or a mutant phenotype affecting the formation of a normal wing. The most frequent phenotypes consist of changes in wing size, vein differentiation, and patterning, defects in the wing margin and in the apposition of the dorsal and ventral wing surfaces. We also defined 16 functional categories encompassing the most relevant aspect of each protein function and assigned each Drosophila gene to one of these functional groups. This allowed us to identify which mutant phenotypes are enriched within each functional group. Finally, we used previously published gene expression datasets to determine which genes are or are not expressed in the wing disc. Integrating expression, phenotypic and molecular information offers considerable precision to identify the relevant genes affecting wing formation and the biological processes regulated by the

    Enhanced Therapeutic Efficacy and Memory of Tumor-Specific CD8 T Cells by Ex Vivo PI3K-δ Inhibition

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    Financial support: This work was supported by Georgia Cancer Center, Augusta University (S. Khleif). Acknowledgements The authors would like to thank Dr Frank Ward for his advice on experimental design.Peer reviewedPostprin

    La Imagen y la Narrativa como Herramientas para el Abordaje Psicosocial en Escenarios de Violencia. Ciudad de Bogotá y Bucaramanga

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    En el presente informe se detallan el uso de la narrativa como herramienta en el apoyo psicosocial en comunidades que han sido víctimas de la violencia como uso de la intimidación con fines lucrativos ya sean por las tierras o por el reclutamiento forzado. Dentro de las acciones que se ejercen sobre las poblaciones vulnerables se denota una serie de secuelas psicofísicas y económicas que generan en las víctimas el desarraigo cultural y social, la pérdida de miembros de la familia; es un detonante de estrés postraumático y duelos que requiere del uso de la narrativa como catarsis instrumento de evaluación sobre los hechos vividos. En este tipo de casos lo que se busca es replantear la subjetividad de los casos parafraseando a Jimeno (2007) p.1, se entiende que la comunicación es la externalización interpretaciones o procesos de subjetivación de hechos vividos y que dada la percepción de cada sujeto y su historia de vida se tiende a reasignar valores que lleven a la emancipación y por ende la reestructuración de proyectos de vida. A partir del análisis psicosocial realizado por cada uno de los estudiantes de los diferentes relatos como abordaje de subjetividades e intersubjetividades que se generan en los contextos de violencia, de manera colaborativa se eligió el caso de Modesto Pacayá; la narrativa describe la persona que ha logrado sobreponerse a las desventajas y construye una vida después de cada suceso traumático. Se evidencian voces de esperanza, de superación y sobre todo la capacidad de resiliencia que tiene cada una de las víctimas flageladas por el conflicto.This report details the use of narrative as a tool in psychosocial support in communities that have been victims of violence as a use of intimidation for profit, whether for land or for forced recruitment. Among the actions that are carried out on vulnerable populations, there are a series of psycho-physical and economic consequences that generate cultural, social uprooting and often the loss of family members; As this is a trigger for post-traumatic stress and duels, the use of the narrative as a catharsis instrument of evaluation of the lived events is required. In this type of case, what is sought is to rethink the subjectivity of the cases, paraphrasing Jimeno (2007) p.1, it is understood that communication is the externalization of interpretations or processes of subjectivation of lived events and that given the perception of each subject and their life history tends to reassign values that lead to emancipation and therefore the restructuring of life projects. Based on the psychosocial analysis carried out by each of the students in the different stories, to approach subjectivities and intersubjectivities that are generated in contexts of violence, the case of Modesto Pacayá was chosen collaboratively; the narrative describes the person who has managed to overcome disadvantages and builds a life after each traumatic event, Voices of hope, of overcoming are evident, and above all the capacity of resilience that each of the victims flogged by the conflict has. We must dream again, recognizing values and abilities, to transform the world, so violence would lose the role that paralyzes and affects life
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