Human Disturbances
Mostrando 13-24 de 131 artigos, teses e dissertações.
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13. Assessing the performance of macroinvertebrate metrics in the Challhuaco-Ñireco System (Northern Patagonia, Argentina)
ABSTRACT Seven sites were examined in the Challhuaco-Ñireco system, located in the reserve of the Nahuel Huapi National Park, however part of the catchment is urbanized, being San Carlos de Bariloche (150,000 inhabitants) placed in the lower part of the basin. Physico-chemical variables were measured and benthic macroinvertebrates were collected during thre
Iheringia, Sér. Zool.. Publicado em: 2015-09
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14. The lactase persistence genotype is a protective factor for the metabolic syndrome
The Metabolic Syndrome (MetS) is defined as a pattern of metabolic disturbances, which include central obesity, insulin resistance and hyperglycemia, dyslipidemia, and hypertension. Milk has been promoted as a healthy beverage that can improve the management of MetS. Most human adults, however, down-regulate the production of intestinal lactase after weaning
Genet. Mol. Biol.. Publicado em: 21/10/2014
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15. What is the importance of open habitat in a predominantly closed forest area to the dung beetle (Coleoptera, Scarabaeinae) assemblage?
What is the importance of open habitat in a predominantly closed forest to the dung beetle assemblage? The Atlantic Forest in Brazil is one of the most highly disturbed ecosystems and is mainly represented by fragmented areas. However, in places where human disturbances have ceased, certain areas are showing a natural regeneration pattern. The aim of the pre
Rev. Bras. entomol.. Publicado em: 2013-09
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16. Ardra profiles of bacteria and archaea in mangrove sediments with different levels of contamination in the estuarine complex of Paranaguá, Brazil
The mangrove's sediments from the coastal areas under human activities may contain significant contaminations by hydrocarbons, even when there are no visual evidences of it. The microorganisms are essential to these ecosystems, especially in the control of their chemical environment. Sediment samples were collected in two regions under different environment
Braz. arch. biol. technol.. Publicado em: 2013-04
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17. Avaliação qualitativa da paisagem sonora de parques urbanos. Estudo de caso : Parque Villa Lobos, em São Paulo / Qualitative assessment of soundscapes of Urban Parks case study : Villa Lobos Park, in São Paulo
An evaluation of sound environment of the Villa Lobos Park, in São Paulo, is presented in this paper taking into account the context and human perception. This work includes classic quantitative maps, with noise levels in decibels, and a qualitative assessment of the Soundscape (the sound environment, in a context, perceived by human beings). It also presen
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/05/2012
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18. Parques agrários no baixo Jaguaribe : arquitetura rural da região dos perímetros irrigados resultante do planejamento de bacias hidrográficas / Agrarian park on lower Jaguaribe : rural architecture in the region of irrigated perimeters resulting from watersheds planning
Human interventions confer throughout history personality and typical characteristics in several regions. In Ceará, the region of the irrigated areas of low Jaguaribe is a good example of the interaction that takes place in the landscape, mainly by human disturbances - which reveals a mastery over nature - and by the landscapes when associated to the histor
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/05/2011
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19. Prenatal alcohol exposure did not affect impulsivity in rats that performed delay or probability discounting tasks
Individuals who fall under the spectrum of the Fetal Alcohol Syndrome have a higher prevalence of several cognitive disturbances, including a greater probability of being diagnosed with attention-deficit hyperactivity disorder (ADHD). Some of these effects, such as hyperactivity and attentional impairments, are already well established in the literature. The
Psychology & Neuroscience. Publicado em: 2011-06
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20. Macrolgae as an indicator of the environmental health of the Pirangi reefs, Rio Grande do Norte, Brazil
The coral reefs of Pirangi beach have suffered the impact of anthropic actions, mainly those related to tourism. To evaluate these effects, algal samples were collected at nine stations, distributed along the reef fringe. The macrobenthic community (algae/coral) was identified through photographic methods. A total of thirty species of algae, five species of
Revista Brasileira de Farmacognosia. Publicado em: 22/04/2011
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21. Caracterização do parasitismo por Ornithodoros brasiliensis (Chelicerata: Argasidae) e da toxicose induzida em humanos e animais
Ticks are blood-sucking arthropods distributed worldwide and able to parasitize almost all terrestrial vertebrate animals. Ticks are considered a great hazard for both public health and animal breeding due to their ability to transmit infectious diseases and to induce direct toxic effects leading to clinical disturbances. Ornithodoros brasiliensis, popularly
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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22. Avaliação das propriedades antigenotóxicas e antioxidantes do flavonóide quercetina e dos carotenóides bixina e norbixina contra os danos no material genético e distúrbios do estado redox causados pelo cloreto de mercúrio e metilmercúrio, in vitro e in vivo / Evaluation of antigenotoxic and antioxidant properties of the flavonoid quercetin and of the carotenoid bixin and norbixin against DNA-damage and alterations of redox status induced by mercury chloride and methylmercury, in vitro and in vivo
Mercury (Hg) is one of the most hazardous metals in the environment and the major process responsible for its toxicity is oxidative damage; its organic form methylmercury (MeHg) presents the highest toxicity. The main way of exposition to Hg is through inhalation by workers occupationally exposed in several industries and/or through consumption of fishes and
Publicado em: 2011
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23. Avaliação da produção de sedimento na bacia hidrográfica do rio Potengi através do modelo SWAT
Anthropic disturbances in watersheds, such as inappropriate building development, disorderly land occupation and unplanned land use, may strengthen the sediment yield and the inflow into the estuary, leading to siltation, changes in the reach channel conformation, and ecosystem/water quality problems. Faced with such context, this study aims to assess the ap
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/12/2010
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24. CARACTERIZAÇÃO FLORÍSTICA, DIVERSIDADE E CORRELAÇÃO AMBIENTAL NA FLORESTA NACIONAL DE SÃO FRANCISCO DE PAULA, RS / FLORISTIC CHARACTERIZATION, DIVERSITY AND ENVIRONMENTAL CORRELATION IN THE NATIONAL FOREST OF SÃO FRANCISCO DE PAULA, RS
Populations and species are disappearing due to disturbances in the environment caused by human activities. Given the obvious risk of loss of diversity, it is increasingly necessary to take actions concerning preservation, in which safety features are necessary for measuring the variation of diversity in space and time. The aim of this study was to evaluate
Publicado em: 2010