859 research outputs found

    O processo de transformação da representação social das mulheres negras nas campanhas publicitárias da Avon Brasil por meio das redes sociais

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    Trabalho de Conclusão de Curso (graduação)—Universidade de Brasília, Faculdade de Comunicação, Departamento de Audiovisual e Publicidade, habilitação em Publicidade e Propaganda, 2019.Nesta pesquisa, objetiva investigar se, desde a criação de suas principais redes sociais, a marca Avon disponibilizou espaço para mulheres negras nos anúncios publicitários. Para isso, adotou-se o método de Análise de Conteúdo e Análise da Imagem para analisar as publicações feitas entre 2013 e 2019 e, como complemento, uma pesquisa direcionada às mulheres do Distrito Federal. Concluiu-se que as mulheres negras estão ocupando mais espaço na publicidade da Avon e que as midiáticas são as mais associadas à beleza negra, enquanto mulheres negras que não seguem o padrão imposto, como as que têm peso corporal diferenciado e aquelas com mais de 50 anos são pouco recordadas

    Ciberexposições curriculares : as estratégias comunicacionais da exposição Emaranhado (2021)

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    Este trabalho se propõe a mapear as ciberexposições curriculares produzidas pelos cursos de Museologia no Brasil durante a pandemia da Covid-19, entre os anos de 2020 e 2021, e analisar as estratégias comunicacionais da ciberexposição curricular "EMARANHADO: reflexões sobre a cibercultura", realizada em 2021 pelo Curso de Museologia da Universidade Federal do Rio Grande do Sul (UFRGS) por meio de uma avaliação somativa no formato proposto por Marília Xavier Cury (2005), investigando a presença da exposição EMARANHADO nas redes sociais e suas métricas de visitação. A pesquisa visa contribuir para o registro das atividades de exposição curricular, sobretudo os exercícios desenvolvidos no ciberespaço, tendo como fonte primária o Relatório Final da exposição analisada e os registros digitais das ciberexposições curriculares realizadas no Brasil dentro do recorte temporal proposto. A partir da revisão bibliográfica, o trabalho visa apresentar conceitos de exposição curricular, ciberexposição, comunicação e avaliação museológica aplicados à exercícios digitais de exposição museológica. Com base nos conceitos aplicados e da análise desenvolvida, conclui-se que plataformas e redes sociais, em especial Instagram, YouTube e TikTok apresentam possibilidades e potências para os campos da comunicação museal e de atividades educativo-culturais em exercícios de exposição museológica, além da proposta na continuidade de exercícios de cibermuseologia durante a graduação e a experimentação com a comunicação e avaliação museológica em formato online para o desenvolvimento de práticas avaliativas qualitativas no ciberespaço.This paper proposes to map the curricular cyberexhibitions produced by courses of Museology in Brazil during the Covid-19 pandemic, between the years 2020 and 2021, and analyze the communicational strategies of the curricular cyberexhibition "EMARANHADO: reflexões sobre a cibercultura", held in 2021 by the Museology Course of the Federal University of Rio Grande do Sul (UFRGS) through a summative evaluation in the format proposed by Marilia Xavier Cury (2005), investigating the presence of the EMARANHADO exhibition in social networks and its visitation metrics. The research aims to contribute to the record of curricular exhibition activities, especially the exercises developed in cyberspace, having as primary source the Final Report of the exhibition and the digital records of curricular cyberexhibitions held in Brazil within the proposed time frame. From the bibliographic review, the work aims to present concepts of curricular exhibition, cyber exhibition, communication and museological evaluation applied to digital exercises of museological exhibition. Based on the concepts applied and the analysis developed, it is concluded that platforms and social networks, especially Instagram, YouTube and TikTok present possibilities and potentials for the fields of museum communication and educational-cultural activities in museum exhibition exercises, in addition to the proposal in the continuity of cybermuseology exercises during graduation and experimentation with museological communication and evaluation in online format for the development of qualitative evaluative practices in cyberspace

    Políticas de protección a la infancia y adolescencia en Uruguay. Una aproximación a los programas con metodología de proximidad

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    This article is focused on the analysis of the children and adolescents protection policies in Uruguay. Specifically, on three programs that are aimed at having a focused intervention mode by territorialization, inter-institutionalism and proximity. It will analyze the tensions and challenges of these programs, taking into account whether they generate real transformations in life trajectories or whether they are processes of individualization of poverty. Uruguay’s State has ratified the Convention on the rights of the children and at a nation level is framed under the code of childhood and adolescence, because of this reason the category should be a priority of the political agenda. Considering this, do these children and adolescents protection policies protect them,or is this just a type of tutoring?El artículo se centra en el análisis de las políticas de protección a la infancia y adolescencia en Uruguay, específicamente en tres programas con metodología de proximidad; caracterizados por tener una modalidad de intervención focalizada, por la territorialización, la interinstitucionalidad y la cercanía, se analizarán las tensiones y los desafíos que tienen estos programas atendiendoa si generan transformaciones reales en las trayectorias de vida o si se trata de procesos de individualización de la pobreza. En materia infancia y adolescencia, Uruguay es uno de los Estados que ha ratificado la Convención Sobre los Derechos del Niño y a nivel nacional se enmarca en el Código de la Niñez y Adolescencia por lo que estas categorías deberían ser prioridad en la agenda política

    First Report of Colletotrichum gloeosporioides Causing Anthracnose of Tejocote (Crataegus gracilior) Fruits in Mexico

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    Crataegus, is a genus classified in family Rosaceae and includes several tree species commonly called Tejocote that are widely cultivated for their pome fruits in Mexico. During fall of 2014, 2015, and 2016, severe symptoms of anthracnose were observed on approx. 60% of tejocote (Crataegus gracilior) fruits in an orchard located in Tulancingo, Oaxaca, Mexico. Affected fruits showed sunken, prominent, dark brown to black necrotic lesions, and were exuding salmon spore masses. To isolate the fungus, small pieces from tissue adjacent to the lesions of 10 symptomatic fruits were excised and surface disinfested by immersion in a 1% sodium hypochlorite solution for 2 min, rinsed three times in sterile distilled water, placed in Petri plates containing potato dextrose agar (PDA), and incubated at 25ºC for 5 to 7 days in darkness. Mycelial plugs were excised from the edge of the actively growing fungal colony and aseptically transferred to fresh PDA medium and incubated at 25°C for 6 days. Five monoconidial cultures were obtained by transferring germinated spores to Petri plates with fresh PDA. One isolate was selected as representative for morphological and molecular identification. Colonies of pure cultures exhibited greyish-white aerial mycelium and abundant salmon-pink conidial masses. Conidia (n= 100) were subcylindrical, hyaline, straight, one-celled, with rounded ends, measuring 13.6 to 17.7 × 4.4 to 5.9 μm. Conidial appressoria were ovoid and brown to dark brown. Based on morphological characteristics, the fungus was identified within the Colletotrichum gloeosporioides species complex (Weir et al. 2012). The isolate was designated UACH-177 and deposited in the Culture Collection of Phytopathogenic Fungi at the Chapingo Autonomous University. For molecular identification, the ITS region (White et al. 1990), and fragments of (Apn2) (Rojas et al. 2010), glyceraldehyde-3-phosphate dehydrogenase (GAPDH), and β-tubulin 2 (TUB2) genes (Weir et al. 2012) were amplified by PCR, and sequenced. The sequences were deposited in GenBank (Accessions numbers ITS:MG821312; Apn2:MG821310; GAPDH:MG821311; and TUB2:MG821313). A phylogenetic analysis using Bayesian inference and including published ITS, Apn2, GAPDH, and TUB2 data for C. gloeosporioides and other Colletotrichum species was performed. The phylogenetic analysis showed the sequences were grouped into the clade of C. gloeosporioides. To confirm the pathogenicity of the fungus, 20 tejocote fruits were surface disinfested by immersion in a 1% sodium hypochlorite solution for 1 min, washed three times with sterile distilled water and dried on sterilized filter paper. Inoculations were performed by deposition of 10 μl of a conidial suspension (106 spores ml-1) on the fruit surface. Ten fruit were mock inoculated with distilled water as a control. All fruits were kept in a moist chamber at 25°C for 10 days. Pathogenicity test was repeated twice. Disease symptoms were observed on all inoculated fruit after 7 days, whereas control fruit did not develop symptoms. Fungal colonies were re-isolated from all symptomatic fruits and were found to be morphologically identical to the original isolate inoculated on tejocote fruits, thus fulfilling Koch´s postulates. In Mexico, García-Alvarez (1976) reported Colletotrichum sp. on fruits of Crataegus mexicana, however, that report was not supported by morphological characterization nor pathogenicity tests. To our knowledge, this is the first report of C. gloeosporioides causing anthracnose of Crataegus gracilior in Mexico and worldwide.Fil: Nieto López, Edgar Humberto. University of Nebraska; Estados UnidosFil: Everhart, Sydney. University of Nebraska; Estados UnidosFil: Ayala Escobar, Victoria. Colegio de Postgraduados; MéxicoFil: Camacho Tapia, Moises. Universidad Autónoma Chapingo; MéxicoFil: Bernardi Lima, Nelson. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Instituto Nacional de Tecnología Agropecuaria. Centro de Investigaciones Agropecuarias. Instituto de Patología Vegetal; ArgentinaFil: Nieto Angel, Raúl. Universidad Autónoma Chapingo; MéxicoFil: Tovar Pedraza, Juan Manuel. Universidad Autónoma Chapingo; Méxic

    Runaway stars as cosmic ray injectors inside molecular clouds

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    Giant molecular clouds (GMCs) are a new population of gamma-ray sources, being the target of cosmic rays (CRs) -- locally accelerated or not --. These clouds host very young stellar clusters where massive star formation takes place. Eventually, some of the stars are ejected from the clusters, becoming runaway stars. These stars move supersonically through the cloud and develop bowshocks where particles can be accelerated up to relativistic energies. As a result, the bowshocks present non-thermal emission, and inject relativistic protons in the cloud. These protons diffuse in the GMC interacting with the matter. We present a model for the non-thermal radiation generated by protons and secondary pairs accelerated in the bowshocks of massive runaways stars within young GMCs. We solve the transport equation for primary protons and secondary pairs as the stars move through the cloud. We present non-thermal emissivity maps in radio and in gamma rays as a function of time. We obtain X-ray luminosities of the order \sim 1032{ 10^{32}} erg~s1^{-1} and gamma-ray luminosities \sim 103410^{34} erg~s1^{-1}. We conclude that, under some assumptions, relativistic protons from massive runaway stars interacting with matter in GMCs give rise to extended non-thermal sources.Comment: 16 pages, 10 figures, accepted for publication in MNRA

    Molecular clouds as reservoir of cosmic rays

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    Giant molecular clouds (GMCs) are emerging as a new population of -ray sources; with detections by instruments such as HESS and Fermi. These dense clouds are targets for cosmic rays (CRs) -- locally accelerated or not --. GMCs host very young star clusters where massive star formation takes place. Some of the early-type stars are usually ejected from the clusters; becoming runaway stars; that move through the cloud. These stars develop bowshocks where particles can be accelerated up to relativistic energies. As a result; the bowshocks present radio to -ray emission of leptonic origin; and inject relativistic protons in the cloud. These protons diffuse in the GMC interacting with the matter via inelastic collisions. This gives rise to extended -ray sources. We present a model for the non-thermal radiation produced by locally accelerated CRs in GMCs.Instituto Argentino de RadioastronomíaFacultad de Ciencias Astronómicas y GeofísicasConsejo Nacional de Investigaciones Científicas y Técnica

    Molecular clouds as reservoir of cosmic rays

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    Giant molecular clouds (GMCs) are emerging as a new population of -ray sources; with detections by instruments such as HESS and Fermi. These dense clouds are targets for cosmic rays (CRs) -- locally accelerated or not --. GMCs host very young star clusters where massive star formation takes place. Some of the early-type stars are usually ejected from the clusters; becoming runaway stars; that move through the cloud. These stars develop bowshocks where particles can be accelerated up to relativistic energies. As a result; the bowshocks present radio to -ray emission of leptonic origin; and inject relativistic protons in the cloud. These protons diffuse in the GMC interacting with the matter via inelastic collisions. This gives rise to extended -ray sources. We present a model for the non-thermal radiation produced by locally accelerated CRs in GMCs.Instituto Argentino de RadioastronomíaFacultad de Ciencias Astronómicas y GeofísicasConsejo Nacional de Investigaciones Científicas y Técnica

    Molecular clouds as reservoir of cosmic rays

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    Giant molecular clouds (GMCs) are emerging as a new population of -ray sources; with detections by instruments such as HESS and Fermi. These dense clouds are targets for cosmic rays (CRs) -- locally accelerated or not --. GMCs host very young star clusters where massive star formation takes place. Some of the early-type stars are usually ejected from the clusters; becoming runaway stars; that move through the cloud. These stars develop bowshocks where particles can be accelerated up to relativistic energies. As a result; the bowshocks present radio to -ray emission of leptonic origin; and inject relativistic protons in the cloud. These protons diffuse in the GMC interacting with the matter via inelastic collisions. This gives rise to extended -ray sources. We present a model for the non-thermal radiation produced by locally accelerated CRs in GMCs.Instituto Argentino de RadioastronomíaFacultad de Ciencias Astronómicas y GeofísicasConsejo Nacional de Investigaciones Científicas y Técnica
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