10 research outputs found
PROSPECÇÃO TECNOLÓGICA: PAINÉIS DE VEDAÇÃO UTILIZANDO CONCRETO LEVE E MATERIAIS RECICLADOS
O setor da construção civil é considerado um setor atrasado no Brasil. A necessidade de racionalizar a construção de habitações visando a redução do deficit habitacional, alavancado pelos programas governamentais de incentivo, fez com que empresas buscassem utilizar painéis de concreto em substituição a alvenaria convencional. Esses painéis são comumente feitos de concreto leve, podendo ser moldados no local ou pré-fabricados. O concreto leve pode incorporar materiais reciclados, além dos já normalmente usados. Nesse estudo procurou-se conhecer como a tecnologia de painéis de vedação de concreto leve está incorporando outros materiais e quais são esses materiais. Para isso, realizou-se uma busca nas bases de patente do Instituto Nacional de Propriedade Industrial e do Derwent Innovation Index, utilizando palavras-chave e suas combinações. Os resultados foram analisados e categorizados. A título de comparação, foi levantado o número de artigos científicos sobre o tema, a partir da base Web of Science. Além disso, foram procurados dados de empresas que trabalhavam com painéis de concreto, e foi verificado se havia em sua página eletrônica a informação sobre o uso de material reciclado em painéis de concreto. Foram encontradas poucas patentes na base nacional e, na internacional, foram encontrados diversos documentos que tratam do uso de materiais reciclados incorporados ao concreto. Quanto às empresas, apenas uma citava,em sua página de produtos,a utilização de material reciclado, mostrando uma boa possibilidade de inserção de um novo produto no mercado, com aspecto ecologicamente amigável
PROSPECÇÃO TECNOLÓGICA: PAINÉIS DE VEDAÇÃO UTILIZANDO CONCRETO LEVE E MATERIAIS RECICLADOS
O setor da construção civil é considerado um setor atrasado no Brasil. A necessidade de racionalizar a construção de habitações visando a redução do deficit habitacional, alavancado pelos programas governamentais de incentivo, fez com que empresas buscassem utilizar painéis de concreto em substituição a alvenaria convencional. Esses painéis são comumente feitos de concreto leve, podendo ser moldados no local ou pré-fabricados. O concreto leve pode incorporar materiais reciclados, além dos já normalmente usados. Nesse estudo procurou-se conhecer como a tecnologia de painéis de vedação de concreto leve está incorporando outros materiais e quais são esses materiais. Para isso, realizou-se uma busca nas bases de patente do Instituto Nacional de Propriedade Industrial e do Derwent Innovation Index, utilizando palavras-chave e suas combinações. Os resultados foram analisados e categorizados. A título de comparação, foi levantado o número de artigos científicos sobre o tema, a partir da base Web of Science. Além disso, foram procurados dados de empresas que trabalhavam com painéis de concreto, e foi verificado se havia em sua página eletrônica a informação sobre o uso de material reciclado em painéis de concreto. Foram encontradas poucas patentes na base nacional e, na internacional, foram encontrados diversos documentos que tratam do uso de materiais reciclados incorporados ao concreto. Quanto às empresas, apenas uma citava,em sua página de produtos,a utilização de material reciclado, mostrando uma boa possibilidade de inserção de um novo produto no mercado, com aspecto ecologicamente amigável
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NEOTROPICAL XENARTHRANS: a data set of occurrence of xenarthran species in the Neotropics
Xenarthrans—anteaters, sloths, and armadillos—have essential functions forecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosys-tem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts withdomestic dogs, these species have been threatened locally, regionally, or even across their fulldistribution ranges. The Neotropics harbor 21 species of armadillos, 10 anteaters, and 6 sloths.Our data set includes the families Chlamyphoridae (13), Dasypodidae (7), Myrmecophagidae(3), Bradypodidae (4), and Megalonychidae (2). We have no occurrence data onDasypus pilo-sus(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 thisdata paper, we compiled a total of 42,528 records of 31 species, represented by occurrence andquantitative data, totaling 24,847 unique georeferenced records. The geographic range is fromthe southern United States, Mexico, and Caribbean countries at the northern portion of theNeotropics, to the austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regardinganteaters,Myrmecophaga tridactylahas the most records (n=5,941), andCyclopessp. havethe fewest (n=240). The armadillo species with the most data isDasypus novemcinctus(n=11,588), and the fewest data are recorded forCalyptophractus retusus(n=33). Withregard to sloth species,Bradypus variegatushas the most records (n=962), andBradypus pyg-maeushas the fewest (n=12). Our main objective with Neotropical Xenarthrans is to makeoccurrence and quantitative data available to facilitate more ecological research, particularly ifwe integrate the xenarthran data with other data sets of Neotropical Series that will become available very soon (i.e., Neotropical Carnivores, Neotropical Invasive Mammals, andNeotropical Hunters and Dogs). Therefore, studies on trophic cascades, hunting pressure,habitat loss, fragmentation effects, species invasion, and climate change effects will be possiblewith the Neotropical Xenarthrans data set. Please cite this data paper when using its data inpublications. We also request that researchers and teachers inform us of how they are usingthese data
Neotropical xenarthrans: a dataset of occurrence of xenarthran species in the Neotropics.
International audienceXenarthrans—anteaters, sloths, and armadillos—have essential functions forecosystem maintenance, such as insect control and nutrient cycling, playing key roles as ecosys-tem engineers. Because of habitat loss and fragmentation, hunting pressure, and conflicts withdomestic dogs, these species have been threatened locally, regionally, or even across their fulldistribution ranges. The Neotropics harbor 21 species of armadillos, 10 anteaters, and 6 sloths.Our data set includes the families Chlamyphoridae (13), Dasypodidae (7), Myrmecophagidae(3), Bradypodidae (4), and Megalonychidae (2). We have no occurrence data onDasypus pilo-sus(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 thisdata paper, we compiled a total of 42,528 records of 31 species, represented by occurrence andquantitative data, totaling 24,847 unique georeferenced records. The geographic range is fromthe southern United States, Mexico, and Caribbean countries at the northern portion of theNeotropics, to the austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regardinganteaters,Myrmecophaga tridactylahas the most records (n=5,941), andCyclopessp. havethe fewest (n=240). The armadillo species with the most data isDasypus novemcinctus(n=11,588), and the fewest data are recorded forCalyptophractus retusus(n=33). Withregard to sloth species,Bradypus variegatushas the most records (n=962), andBradypus pyg-maeushas the fewest (n=12). Our main objective with Neotropical Xenarthrans is to makeoccurrence and quantitative data available to facilitate more ecological research, particularly ifwe integrate the xenarthran data with other data sets of Neotropical Series that will become available very soon (i.e., Neotropical Carnivores, Neotropical Invasive Mammals, andNeotropical Hunters and Dogs). Therefore, studies on trophic cascades, hunting pressure,habitat loss, fragmentation effects, species invasion, and climate change effects will be possiblewith the Neotropical Xenarthrans data set. Please cite this data paper when using its data inpublications. We also request that researchers and teachers inform us of how they are usingthese data
Using clinical research networks to assess severity of an emerging influenza pandemic
BACKGROUND:
Early clinical severity assessments during the 2009 influenza A H1N1 pandemic (pH1N1) overestimated clinical severity due to selection bias and other factors. We retrospectively investigated how to use data from the International Network for Strategic Initiatives in Global HIV Trials, a global clinical influenza research network, to make more accurate case fatality ratio (CFR) estimates early in a future pandemic, an essential part of pandemic response.
METHODS:
We estimated the CFR of medically attended influenza (CFRMA) as the product of probability of hospitalization given confirmed outpatient influenza and the probability of death given hospitalization with confirmed influenza for the pandemic (2009-2011) and post-pandemic (2012-2015) periods. We used literature survey results on health-seeking behavior to convert that estimate to CFR among all infected persons (CFRAR).
RESULTS:
During the pandemic period, 5.0% (3.1%-6.9%) of 561 pH1N1-positive outpatients were hospitalized. Of 282 pH1N1-positive inpatients, 8.5% (5.7%-12.6%) died. CFRMA for pH1N1 was 0.4% (0.2%-0.6%) in the pandemic period 2009-2011 but declined 5-fold in young adults during the post-pandemic period compared to the level of seasonal influenza in the post-pandemic period 2012-2015. CFR for influenza-negative patients did not change over time. We estimated the 2009 pandemic CFRAR to be 0.025%, 16-fold lower than CFRMA.
CONCLUSIONS:
Data from a clinical research network yielded accurate pandemic severity estimates, including increased severity among younger people. Going forward, clinical research networks with a global presence and standardized protocols would substantially aid rapid assessment of clinical severity
NEOTROPICAL XENARTHRANS: a data set of occurrence of xenarthran species in the Neotropics
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 domestic dogs, these species have been threatened locally, regionally, or even across their full distribution ranges. The Neotropics harbor 21 species of armadillos, 10 anteaters, and 6 sloths. Our data set 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 southern United States, Mexico, and Caribbean countries at the northern portion of the Neotropics, to the austral distribution in Argentina, Paraguay, Chile, and Uruguay. Regarding anteaters, Myrmecophaga tridactyla has the most records (n = 5,941), and Cyclopes sp. have the fewest (n = 240). The armadillo species with the most data is Dasypus novemcinctus (n = 11,588), and the fewest data are recorded for Calyptophractus retusus (n = 33). With regard 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 data sets of Neotropical Series that 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 data set. Please cite this data paper when using its data in publications. We also request that researchers and teachers inform us of how they are using these data