17 research outputs found

    Arrival Directions of Cosmic Rays above 32 EeV from Phase One of the Pierre Auger Observatory

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    A promising energy range to look for angular correlations between cosmic rays of extragalactic origin and their sources is at the highest energies, above a few tens of EeV (1 EeV equivalent to 10^(18) eV). Despite the flux of these particles being extremely low, the area of similar to 3000 km^(2) covered at the Pierre Auger Observatory, and the 17 yr data-taking period of the Phase 1 of its operations, have enabled us to measure the arrival directions of more than 2600 ultra-high-energy cosmic rays above 32 EeV. We publish this data set, the largest available at such energies from an integrated exposure of 122,000 km^(2) sr yr, and search it for anisotropies over the 3.4 pi steradians covered with the Observatory. Evidence for a deviation in excess of isotropy at intermediate angular scales, with similar to 15 degrees Gaussian spread or similar to 25 degrees top-hat radius, is obtained at the 4 sigma significance level for cosmic-ray energies above similar to 40 EeV

    Searches for Ultra-High-Energy Photons at the Pierre Auger Observatory

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    The Pierre Auger Observatory, which is the largest air-shower experiment in the world, offers unprecedented exposure to neutral particles at the highest energies. Since the start of data collection more than 18 years ago, various searches for ultra-high-energy (UHE, E greater than or similar to 10^(17) eV) photons have been performed, either for a diffuse flux of UHE photons, for point sources of UHE photons or for UHE photons associated with transient events such as gravitational wave events. In the present paper, we summarize these searches and review the current results obtained using the wealth of data collected by the Pierre Auger Observatory

    Search for Ultra-high-energy Photons from Gravitational Wave Sources with the Pierre Auger Observatory

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    A search for time-directional coincidences of ultra-high-energy (UHE) photons above 10 EeV with gravitational wave (GW) events from the LIGO/Virgo runs O1 to O3 is conducted with the Pierre Auger Observatory. Due to the distinctive properties of photon interactions and to the background expected from hadronic showers, a subset of the most interesting GW events is selected based on their localization quality and distance. Time periods of 1000 s around and 1 day after the GW events are analyzed. No coincidences are observed. Upper limits on the UHE photon fluence from a GW event are derived that are typically at & SIM;7 MeV cm(-2) (time period 1000 s) and & SIM;35 MeV cm(-2) (time period 1 day). Due to the proximity of the binary neutron star merger GW170817, the energy of the source transferred into UHE photons above 40 EeV is constrained to be less than 20% of its total GW energy. These are the first limits on UHE photons from GW sources

    Nurses' practices at health basic units in a city in the south of Brazil Las prácticas de enfermeros en unidades básicas de salud en un municipio del sur de Brasil Práticas de enfermeiros em unidades básicas de saúde em município do sul do Brasil

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    On Public Health, nurses can influence the care of the health needs of the population. The objective of this paper is to feature and understand the practices of nurses working at Health Basic Units. It is a qualitative research whereby semi-structured interviews were made with 15 nurses who work at Porto Alegre-Brasil. The treatment of the data was based on analysis of content of the thematic type. Outcomes indicate that the activities performed by nurses are influenced by the Health System and its limitations, especially the lack of nursing workers. Nurses are sought to solve problems that are not always related with their work, demonstrating the diversity of their practices. The conclusion is that the presence of nurses in the daily care and their articulating role contributes to change the realities of health.<br>En la Salud Colectiva los enfermeros pueden influir efectivamente en la atención de las necesidades de la salud de las poblaciones. El objetivo de este estudio es caracterizar y comprender las prácticas de los enfermeros en Unidades Básicas de Salud. Se trata de una investigación cualitativa, en la cual fueron realizadas entrevistas semi-estructuradas con 15 enfermeros actuantes en Puerto Alegre, Brasil. Los datos fueron tratados con base en el análisis de contenido del tipo temático. Los resultados indican que las acciones ejecutadas por los enfermeros son influenciadas por el sistema de la salud y por sus limitaciones, especialmente la falta de trabajadores. Los enfermeros son solicitados para resolver problemas que no siempre presentan una relación con su trabajo, demostrando la diversidad de sus prácticas. Se concluye que la presencia del enfermero en lo cotidiano y su papel articulador contribuyen para modificar las realidades de la salud.<br>Na Saúde Coletiva, os enfermeiros podem influir efetivamente no atendimento das necessidades de saúde das populações. O objetivo deste estudo é caracterizar e compreender as práticas dos enfermeiros em unidades básicas de saúde. Trata-se de pesquisa qualitativa, na qual foram realizadas entrevistas semi-estruturadas com 15 enfermeiros atuantes em Porto Alegre, RS, Brasil. Os dados foram tratados com base na análise de conteúdo do tipo temática. Os resultados indicam que as ações executadas pelos enfermeiros são influenciadas pelo sistema de saúde e suas limitações, especialmente a falta de trabalhadores. Os enfermeiros são procurados para resolver problemas que nem sempre apresentam relação com seu trabalho, demonstrando a diversidade de suas práticas. Conclui-se que a presença do enfermeiro no cotidiano e seu papel articulador contribuem para modificar as realidades de saúde

    Os caminhos da fonoaudiologia no Sistema Único de Saúde - SUS The ways of the speech-language therapy in the Unique System of Health - SUS

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    TEMA: os caminhos da Fonoaudiologia no Sistema Único da Saúde - SUS. OBJETIVO: realizar um breve relato da evolução das questões de saúde no Brasil e da evolução do serviço de Fonoaudiologia no Sistema Público além de realizar uma breve análise sobre a importância de pesquisas nesta área. CONCLUSÃO: o serviço de Fonoaudiologia vem apresentando avanços significativos no Sistema Único de Saúde. Desde sua inserção no SUS, entre as décadas de 70 e 80, muitos conceitos e práticas têm sido reavaliados. No entanto, é preciso que se tenha conhecimento desta caminhada para que seja possível fazê-la avançar cada vez mais. Acredita-se que este serviço merece importante atenção das ações de saúde pública e que são necessárias evidências científicas que comprovem a importância deste trabalho.<br>BACKGROUND: the ways of the speech-language therapy in the Unique System of Health - SUS. PURPOSE: to accomplish a brief report about the health questions evolution in Brazil and speech-language therapy service evolution in the Public System, in addition to carry through a quick analysis on the concern of research in this area. CONCLUSION: speech-language therapy service has been presenting significant advances in the Unique System of Health. Since its insertion in SUS, between the decades of 70 and 80, many conceptions and practices have been reevaluated. However, it is necessary to have acquaintance on this step so that we can make it to advance each time more. We believe that this service deserves important attention from the actions of public health and that scientific evidences are necessary in order to prove the significance of this work
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