505 research outputs found

    O habitus do corpo: futebol e negritude no Brasil

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    This article analyzes the relationship between the perspective over the black body and football in Brazil. Using Pierre Bourdieu’s concept of habitus, we demonstrate how black body’s social construction in sports reveals a face of Brazilian racism. In addition, we seek to analyze the professionalization process of sport practice in consonance with urbanization and industrialization in Brazilian society.Este artigo analisa a relação entre a visão do corpo negro e o futebol no Brasil. Utilizando-se do conceito de habitus do sociólogo Pierre Bourdieu, demonstramos como a construção social do corpo negro na prática esportiva revela uma face do racismo brasileiro. Além disso, busca-se uma análise do processo de profissionalização dessa prática esportiva em consonância à urbanização e industrialização da sociedade brasileira

    Water vapor pressure deficit in Portugal and implications for the development of the invasive African citrus psyllid trioza erytreae

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    African citrus psyllid (Trioza erytreae (Del Guercio)) is a vector insect of the bacterium Candidatus Liberibacter africanus, the putative causal agent of Huanglongbing, the most devastating citrus disease in the world. The insect was found on the island of Madeira in 1994 and in mainland Portugal in 2015. Present in the north and center of the country, it is a threat to Algarve, the main citrus-producing region. Trioza erytreae eggs and first instar nymphs are sensitive to the combination of high temperatures and low relative humidity. Daily maximum air temperature and minimum relative humidity data from 18 weather stations were used to calculate the water vapor pressure deficit (vpd) from 2004 to 2018 at various locations. Based on the mean vpd and the number of unfavorable days (vpd < 34.5 and vpd < 56 mbar) of two time periods (February to May and June to September), less favorable zones for T. erytreae were identified. The zones with thermal and water conditions like those observed in the Castelo Branco and Portalegre (Center), Beja (Alentejo), Alte, and Norinha (Algarve) stations showed climatic restrictions to the development of eggs and first instar nymphs of African citrus psyllid. Effective control measures, such as the introduction and mass release of Tamarixia dryi (Waterson), a specific parasitoid, and chemical control are necessary in favorable periods for T. erytreae development, such as in spring and in areas with limited or no climate restrictions.info:eu-repo/semantics/publishedVersio

    Articles with short titles describing the results are cited more often

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    OBJECTIVE: The aim of this study was to evaluate some features of article titles from open access journals and to assess the possible impact of these titles on predicting the number of article views and citations. METHODS: Research articles (n = 423, published in October 2008) from all Public Library of Science (PLoS) journals and from 12 Biomed Central (BMC) journals were evaluated. Publication metrics (views and citations) were analyzed in December 2011. The titles were classified according to their contents, namely methods-describing titles and results-describing titles. The number of title characters, title typology, the use of a question mark, reference to a specific geographical region, and the use of a colon or a hyphen separating different ideas within a sentence were analyzed to identify predictors of views and citations. A logistic regression model was used to identify independent title characteristics that could predict citation rates. RESULTS: Short-titled articles had higher viewing and citation rates than those with longer titles. Titles containing a question mark, containing a reference to a specific geographical region, and that used a colon or a hyphen were associated with a lower number of citations. Articles with results-describing titles were cited more often than those with methods-describing titles. After multivariate analysis, only a low number of characters and title typology remained as predictors of the number of citations. CONCLUSIONS: Some features of article titles can help predict the number of article views and citation counts. Short titles presenting results or conclusions were independently associated with higher citation counts. The findings presented here could be used by authors, reviewers, and editors to maximize the impact of articles in the scientific community

    Impacto de um programa de atividade física sobre a ansiedade, depressão, estresse ocupacional e síndrome de Burnout dos profissionais de enfermagem no trabalho

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    OBJETIVO: avaliar os efeitos de um programa de atividade física no local de trabalho sobre os níveis de ansiedade, depressão, Burnout, estresse ocupacional e na autopercepção da saúde e qualidade de vida, relacionada ao trabalho de uma equipe de enfermagem, em uma unidade de cuidados paliativos. MÉTODOS: o programa de atividade física no local de trabalho foi realizado cinco dias por semana, com duração de dez minutos, durante três meses consecutivos. Vinte e um profissionais de enfermagem foram avaliados antes e após a intervenção, com o Hospital Anxiety and Depression Scale, o Inventário Maslch Burnout, e o Job Stress Scale. As mudanças na autopercepção da saúde e qualidade de vida, relacionada ao trabalho, foram mensuradas por meio de um questionário semiestruturado. RESULTADOS: o programa de atividade física no local de trabalho não acarretou resultados significativos sobre os níveis de ansiedade, depressão, Burnout e estresse ocupacional. No entanto, após a intervenção, os participantes relataram melhor percepção de dor e sensação de fadiga no trabalho. CONCLUSÃO: o programa de atividade no local de trabalho não resultou em efeitos benéficos sobre estresse ocupacional e variáveis psicológicas, mas foi bem-aceito pelos profissionais de enfermagem, que relataram melhora na percepção da saúde e qualidade de vida relacionada ao trabalho.OBJETIVO: evaluar los efectos de un programa de actividad física en el lugar de trabajo (AFT) en los niveles de ansiedad, depresión, agotamiento, estrés ocupacional y autopercepción de la salud y la calidad de vida relacionada con el trabajo de un equipo de enfermería en una unidad de cuidados paliativos. MÉTODOS: el programa AFT se llevó a cabo durante cinco días a la semana, con una duración de diez minutos, durante tres meses consecutivos. Veintiún profesionales de enfermería fueron evaluados antes y después de la intervención, con Hospital Anxiety and Depression Scale, el Inventário Maslch Burnout y la Job Stress Scale. Los cambios en la percepción de la salud y la calidad de vida relacionada con el trabajo se midieron utilizando un cuestionario semi-estructurado. RESULTADOS: el programa AFT no dio resultados significativos en los niveles de ansiedad, depresión, agotamiento o estrés laboral. Sin embargo, después de la intervención, los participantes informaron una mejor percepción del dolor corporal y de la sensación de fatiga en el trabajo. CONCLUSIÓN: el programa AFT no condujo a efectos beneficiosos sobre el estrés laboral y las variables psicológicas, pero fue bien aceptada por los profesionales de enfermería, quienes reportaron mejoría en la percepción de la salud y la calidad de vida relacionada con el trabajo.OBJECTIVE: to assess the effects of a workplace physical activity (WPA) program on levels of anxiety, depression, burnout, occupational stress and self-perception of health and work-related quality of life of a nursing team in a palliative care unit. METHODS: the WPA was conducted five days per week, lasting ten minutes, during three consecutive months. Twenty-one nursing professionals were evaluated before and after the intervention, with the Hospital Anxiety and Depression Scale, the Maslch Burnout Inventory, and the Job Stress Scale. The changes in self-perceived health and work-related quality of life were measured using a semi-structured questionnaire. RESULTS: the WPA did not yield significant results on the levels of anxiety, depression, burnout or occupational stress. However, after the intervention, participants reported improved perceptions of bodily pain and feeling of fatigue at work. CONCLUSION: the WPA did not lead to beneficial effects on occupational stress and psychological variables, but it was well accepted by the nursing professionals, who reported improvement in perceptions of health and work-related quality of life

    A comparison between sphygmomanometer-based and ambulatory blood pressure monitoring in acute salt loading and depletion protocol

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    INTRODUCTION: Ambulatory blood pressure monitors have been used in salt loading and depletion protocols. However, the agreement between measurements made using ambulatory blood pressure monitors and those made with the sphygmomanometer has not been evaluated. OBJECTIVE: The objective of this study was to compare the concordance of the two methods of blood pressure measurements in protocols of acute salt loading and depletion. METHOD: Systolic blood pressure was measured using a sphygmomanometer at the completion of salt infusion (2 L NaCl 0.9%, 4 h) and salt depletion (furosemide, 120mg/day, p.o.) in 18 volunteers. Using the Pearson correlation coefficient (&#961;), these readings were compared with the mean systolic blood pressure measured using the ambulatory blood pressure monitoring device during the following periods: 4 h of saline infusion and 12 h of salt depletion; 4 h of saline infusion and the last 6 h of salt depletion; 12 h of salt loading and the last 6 h of depletion; 12 h of salt loading and 12 h of depletion. Salt sensitivity was defined by a difference in the systolic blood pressure between salt loading and salt depletion greater than 10 mmHg when measured with the sphygmomanometer, and the Kappa analysis of concordance (K) was used with a significance level of

    Maracatu do Baque Virado: Da extensão ao diálogo

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    Este artigo relata o projeto de extensão Ritmos e Elementos do Maracatu de Baque Virado, desenvolvido na Universidade Federal de Alfenas nos anos de 2016/2017. A partir da condição de coordenador do projeto e discente extensionista realizamos uma observação participativa e a comparação da prática do Maracatu dentro da Universidade com outros grupos tradicionais. Com isso buscamos problematizar a relação da universidade com as práticas da cultura popular, enfatizando as formas de organização, a transmissão dos saberes e a relação entre a cultura acadêmica e a cultura popular. Chegamos à conclusão que a prática de uma cultura popular dentro da universidade pode se configurar como um importante passo na democratização do espaço acadêmico não apenas no sentido de acesso, mas principalmente no sentido de convivência de diferentes organizações e práticas culturais

    Modeling the role of reservoirs versus floodplains on large-scale river hydrodynamics

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    Large-scale hydrologic–hydrodynamic models are powerful tools for integrated water resources evaluation at the basin scale, especially in the context of flood hazard assessment. However, recent model developments have paid little attention to simulate reservoirs’ hydrodynamics within river networks. This study presents an adaptation of the MGB model to simulate reservoirs as an internal boundary condition, enabling the explicit simulation of hydrodynamic processes along reservoirs and their interaction with upstream and downstream floodplains in large basins. A case study is carried out in the Itajaí-Açu River Basin in Brazil, which has periodic flood-related disasters and three flood control dams. The model was calibrated for the 1950–2016 period forced with daily observed precipitation. The adjustment was satisfactory, with Nash–Sutcliffe metrics between 0.54 and 0.84 for the 11 gauges analyzed and with flood frequency curves also well represented. Simulation scenarios with and without floodplains and reservoirs were performed to evaluate the relative role of these factors on flood control basin-wide through evaluation of simulated discharges, water levels and flood extent. Itajaí do Oeste tributary and Itajaí-Açu mainstem present major floodplain attenuation, while in Itajaí do Sul and Itajaí do Norte tributaries the main flood control occurs due to reservoir attenuation. Downstream from the dams, results indicated that the reservoirs reach their maximum discharge reduction capacity for 5- to 10-year floods, decreasing it for larger floods. The developed model may be very useful for operational uses as flood forecasting and coordinated reservoir operation studies, as well as to enhance the comprehension of flood dynamics at basin scale

    Motivação para entrada de voluntários em ONG brasileira

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    ABSTRACTMotivation for voluntary entry in Brazilian NGOsThe present study proposes a structural model to identify the reasons for choosing a certain Non-Governmental Organization (NGO) to provide volunteer work. The empirical space was Pastoral da Criança – a social action agency of the National Conference of Bishops of Brazil (CNBB) – a community-based institution whose pillars are solidarity and sharing of knowledge. The theoretical framework presents the context in which is volunteering, at global and national levels. Then we discuss the various concepts of volunteering and we present the theoretical models of voluntary motivation. The studies of Mostyn (1983) and Cavalcante, Souza, Nascimento, and Cunha (2011a, 2011b, 2012) are the main theoretical and empirical references for the construction of the tested model. Data collection was done by means of a closed questionnaire with 21 indicators in two visits to cities of Pesqueira’s Diocese (Pernambuco/PE). Seven hundred and twenty questionnaires were made. The sample was divided into two parts. In the first one, we made the Exploratory Factor Analysis and, in the second one, the Confirmatory Factor Analysis, through the Structural Equations Model. Examination of the results achieved by the input reasons model allows us to conclude in favor of the validity and the reliability of the instrument. Thus, the reasons for the voluntary entry at Pastoral da Criança can be explained by a set of interactions between these five constructs: Altruism, Affection, Friendly, Adjusted and Sensible

    Accuracy Of Sonography And Hysteroscopy In The Diagnosis Of Premalignant And Malignant Polyps In Postmenopausal Women.

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    To evaluate the accuracy of sonographic endometrial thickness and hysteroscopic characteristics in predicting malignancy in postmenopausal women undergoing surgical resection of endometrial polyps. Five hundred twenty-one (521) postmenopausal women undergoing hysteroscopic resection of endometrial polyps between January 1998 and December 2008 were studied. For each value of sonographic endometrial thickness and polyp size on hysteroscopy, the sensitivity, specificity, positive predictive value (PPV) and negative predictive value (NPV) were calculated in relation to the histologic diagnosis of malignancy. The best values of sensitivity and specificity for the diagnosis of malignancy were determined by the Receiver Operating Characteristic (ROC) curve. Histologic diagnosis identified the presence of premalignancy or malignancy in 4.1% of cases. Sonographic measurement revealed a greater endometrial thickness in cases of malignant polyps when compared to benign and premalignant polyps. On surgical hysteroscopy, malignant endometrial polyps were also larger. An endometrial thickness of 13 mm showed a sensitivity of 69.6%, specificity of 68.5%, PPV of 9.3%, and NPV of 98% in predicting malignancy in endometrial polyps. Polyp measurement by hysteroscopy showed that for polyps 30 mm in size, the sensitivity was 47.8%, specificity was 66.1%, PPV was 6.1%, and NPV was 96.5% for predicting cancer. Sonographic endometrial thickness showed a higher level of accuracy than hysteroscopic measurement in predicting malignancy in endometrial polyps. Despite this, both techniques showed low accuracy for predicting malignancy in endometrial polyps in postmenopausal women. In suspected cases, histologic evaluation is necessary to exclude malignancy.35243-

    Parceria TEC e agentes públicos: contribuições para a sociedade por meio de eventos educativoculturais

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    É cada vez mais latente a importância da cultura e das questões ambientais. Sob essa vertente, o campo educacional traz excelentes perspectivas. Assim, o presente trabalho tem por objetivo descrever iniciativas realizadas em parceria do TEC Grupo (Universidade Federal Fluminense) com agentes públicos municipais (Secretaria de Educação e Cultura), do Estado (Conselho Estadual de Política Cultural) e sob a chancela do Instituto Brasileiro de Museus. Para tal projeto, a metodologia aplicada dá-se pela construção e promoção de eventos, sendo o primeiro a Semana Nacional de Museus, na qual foram apresentados 11 projetos, e o segundo o Projeto E-Lixo, com foco em iniciativas para melhores ações de preservação ambiental, mediante a reciclagem de materiais eletrônicos, provendo capacitação profissional e a conscientização cultural, social e ambiental. Como contribuição e resultados dessa proposta, há a construção de movimentos socioculturais de conscientização local, a produção de materiais didáticos com reaproveitamento de eletrônicos descartados e a promoção de exposição de tais materiais, em favor do sistema educacional
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