Indicators Biology
Mostrando 13-24 de 26 artigos, teses e dissertações.
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13. Bioindicadores de qualidade em solo sob plantio direto e convencional, com e sem adubação verde de inverno
Os bioindicadores de qualidade de solo, principalmente os relacionados aos ciclos do carbono (C) e nitrogênio (N) são úteis para avaliar o efeito do manejo do solo e da rotação de culturas sobre a dinâmica do C e do N no solo. O objetivo desse trabalho foi avaliar as alterações que ocorrem em indicadores biológicos, físicos, químicos e bioquímico
Publicado em: 2008
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14. Diversidade de formigas epígeas em três ambientes no noroeste do Paraná - Brasil
As formigas são insetos que exercercem importante papel como bioindicadores, pragas agrícolas, controle biológico, polinizadores e dispersores de sementes. Este trabalho objetivou conhecer e comparar a diversidade de formigas em três ambientes (fragmento florestal, pomar de laranja e pomar de limão) do noroeste do Paraná. As coletas foram realizadas co
Publicado em: 2008
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15. SOIL PHYSICAL AND BIOLOGICAL CHARACTERIZATION AFTER HERBICIDES APPLICATION IN BLACK WATTLE (Acacia mearnsii De Wild.) STANDS IN RIO GRANDE DO SUL / CARACTERIZAÇÃO FÍSICA E BIOLÓGICA DO SOLO APÓS APLICAÇÃO DE HERBICIDAS EM PLANTIOS DE ACÁCIA-NEGRA (Acacia mearnsii De Wild.) NO RIO GRANDE DO SUL
The study of soil quality biological indicators in areas classified as forest production units is important to understand the ecological processes that occur in these systems. Monitoring the soil fauna in modified environments, when management practices involve chemical products in the environment, is an instrument that allows to evaluate not only the soil q
Publicado em: 2008
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16. A formação inicial de professores e a educação inclusiva: analisando as propostas de formação dos cursos de licenciatura da UFPA / The Initial Formation of teachers and the inclusive education: analyzing the proposals of formation of the Degree Courses at UFPA
The objective of this study is to analyze new proposals in the formal preparation of teachers, developed by the education licensure programs at UFPA, Guam? campus. These proposals were created in the context of adherence to the educational policies of inclusion and their subsequent legislation, adopted by the Brazilian government. To accomplish this objectiv
Publicado em: 2007
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17. Fauna do solo e outros atributos edáficos como indicadores da qualidade ambiental em áreas com Araucaria angustifolia no Estado de São Paulo / Soil fauna and others edaphics attributes as environmental quality indicators in areas with Araucaria angustifolia in São Paulo State, Brazil
The study of biological soil quality indicators in areas with Araucaria is very important to understand ecological processes in these systems, since groups of the soil fauna are major factors in the decomposition and mineralization of organic matter, as well as modifiers of soil physical, chemical and biological properties and processes. The objective of thi
Publicado em: 2007
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18. Ecological indicators for the restoration of degraded areas in the Poço das Antas Biological Reserve, Rio de Janeiro State / Indicadores da restauração de áreas degradadas na Reserva Biológica de Poço das Antas,RJ
Mixed plantations of indigenous tree species have been widely used in the restoration of degraded Atlantic forests which had been converted to pastures. This study used ecological indicators to evaluate the status of restoration in mixed plantations at the Poço das Antas Biological Reserve, Southeastern Brazil. Study sites involved mature forests (F), 8-yea
Publicado em: 2005
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19. Percepção e atividade de produtores de leite de Minas Gerais de diferentes extratos de produção em relação ao Boophilus microplus
Milk producers (n = 193) from three counties (Lavras, steps, and Divinópolis) Minas Gerais state were interviewed to evaluate their perception and attitude control of Boophilus microplus. The information obtained was analyzed by three paths. First, the data underwent a qualitative analysis to profile the knowledge of these. Data were also submitted to an sl
Publicado em: 2005
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20. Caracterização de disintegrinas de venenos viperídeos como ferramentas seletivas na detecção ou inibição da função de integrinas / Characterization of viper venom disintegrins as tools for detecting and inhibiting integrin function
Integrins are membrane proteins involved in biological processes such as embriogenesis, inflammation and platelet aggregation. The alteration of their expression pattem is related to pathological disorders such as thrombosis and cancer, making integrins suitable indicators of the progression of these diseases. Thus, the α2β1 integrin, which is expr
Publicado em: 2003
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21. Ocorrência e taxonomia de minhocas em agroecossistemas no Paraná, Brasil
O objetivo deste estudo foi avaliar as populações de minhocas em agroecossistemas (abundância, biomassa e diversidade) no norte do estado do Paraná (PR) e em áreas sob plantio direto (abundância e diversidade) no oeste desse estado, bem como a descrição de 10 novas espécies da região norte. Foi utilizada metodologia TSBF (Tropical Soil Biology and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2001
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22. Low-molecular-weight cyclin E: the missing link between biology and clinical outcome
Cyclin E, a key mediator of transition during the G1/S cellular division phase, is deregulated in a wide variety of human cancers. Our group recently reported that overexpression and generation of low-molecular-weight (LMW) isoforms of cyclin E were associated with poor clinical outcome among breast cancer patients. However, the link between LMW cyclin E bio
BioMed Central.
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23. Freezing immunoglobulins to see them move
The issue of protein dynamics and its implications in the biological function of proteins are arousing greater and greater interest in different fields of molecular biology. In cryo-electron tomography experiments one may take several snapshots of a given biological macromolecule. In principle, a large enough collection of snapshots of the molecule may then
National Academy of Sciences.
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24. Fundamental clusters in spatial 2x2 games.
The notion of fundamental clusters is introduced, serving as a rule of thumb to characterize the statistical properties of the complex behaviour of cellular automata such as spatial 2 x 2 games. They represent the smallest cluster size determining the fate of the entire system. Checking simple growth criteria allows us to decide whether the cluster-individua