9 research outputs found

    NEOTROPICAL XENARTHRANS: a data set of occurrence of xenarthran species in the Neotropics

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    Xenarthrans – anteaters, sloths, and armadillos – have essential functions for ecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosystem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts with 24 domestic dogs, these species have been threatened locally, regionally, or even across their full distribution ranges. The Neotropics harbor 21 species of armadillos, ten anteaters, and six sloths. Our dataset includes the families Chlamyphoridae (13), Dasypodidae (7), Myrmecophagidae (3), Bradypodidae (4), and Megalonychidae (2). We have no occurrence data on Dasypus pilosus (Dasypodidae). Regarding Cyclopedidae, until recently, only one species was recognized, but new genetic studies have revealed that the group is represented by seven species. In this data-paper, we compiled a total of 42,528 records of 31 species, represented by occurrence and quantitative data, totaling 24,847 unique georeferenced records. The geographic range is from the south of the USA, Mexico, and Caribbean countries at the northern portion of the Neotropics, to its austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regarding anteaters, Myrmecophaga tridactyla has the most records (n=5,941), and Cyclopes sp. has the fewest (n=240). The armadillo species with the most data is Dasypus novemcinctus (n=11,588), and the least recorded for Calyptophractus retusus (n=33). With regards to sloth species, Bradypus variegatus has the most records (n=962), and Bradypus pygmaeus has the fewest (n=12). Our main objective with Neotropical Xenarthrans is to make occurrence and quantitative data available to facilitate more ecological research, particularly if we integrate the xenarthran data with other datasets of Neotropical Series which will become available very soon (i.e. Neotropical Carnivores, Neotropical Invasive Mammals, and Neotropical Hunters and Dogs). Therefore, studies on trophic cascades, hunting pressure, habitat loss, fragmentation effects, species invasion, and climate change effects will be possible with the Neotropical Xenarthrans dataset

    Experiences of newly diagnosed cancer patients in confronting the finitudes of life: a qualitative systematic review protocol.

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    What is the experience of newly diagnosed patients with cancer when facing the finitude of life and undergoing initial anti-cancer treatment

    Desinfecção de ågua de chuva por radiação ultravioleta Disinfection of rainwater by ultraviolet radiation

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    O objetivo deste trabalho foi avaliar o tratamento de ĂĄgua de chuva, de duas regiĂ”es industriais de Joinville (SC), por radiação ultravioleta. O reator operou em processo contĂ­nuo, de modo que cada partĂ­cula permanecesse sob radiação por 60 segundos. As amostras de ĂĄgua foram analisadas em termos de coliformes totais, coliformes termotolerantes e bactĂ©rias heterotrĂłficas antes do tratamento por ultravioleta, apĂłs o tratamento e apĂłs tratadas e armazenadas por 24, 48 e 72 horas. Verificou-se a eficiĂȘncia da desinfecção de ĂĄgua de chuva direta e de telhado por radiação ultravioleta com a inativação de 100% dos coliformes totais e dos coliformes termotolerantes e o nĂŁo recrescimento desses micro-organismos em amostras tratadas e estocados por atĂ© 72 horas, no entanto, bactĂ©rias heterotrĂłficas persistiram e foram identificadas apĂłs 24, 48 e 72 horas ao tratamento.<br>The objective of this study was to evaluate the treatment of rainwater in two industrial regions in Joinville (SC, Brazil) by ultraviolet radiation. The reactor was operating in continuous process with each particle remaining under radiation for 60 seconds. The samples were evaluated in terms of total coliforms, fecal coliform and heterotrophic bacteria prior to ultraviolet treatment, after treatment and further treated and stored for 24, 48 and 72 hours. The efficiency of disinfection of direct rainwater and that collected from roofing by ultraviolet radiation was verified with 100% inactivation of total coliforms and fecal coliform and these microorganisms did not reappear in samples treated and stored for up to 72 hours, however, heterotrophic bacteria persisted and were identified after 24, 48 and 72 hours of treatment

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