Regenerating Component
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Expansão da vegetação arbustivo-arbórea em áreas abertas alto-montanas adjacentes a fragmentos florestais, no Planalto Sul Catarinense
Resumo O objetivo deste estudo foi conhecer os padrões demográficos da regeneração natural do componente arbustivo-arbóreo e determinar se esses são influenciados pelas variáveis ambientais, em três áreas abertas em regeneração natural (diâmetro na altura do peito < 5 cm), em contato com fragmentos florestais de Floresta Ombrófila Mista Alto-Mon
Ciênc. Florest.. Publicado em: 30/05/2019
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2. What explains the variation on the regenerative component dynamics of Araucaria Forests in southern Brazil?
ABSTRACT: The natural regeneration process is essential for forest maintenance since it is critical for establishing new tree individuals. This study aimed to improve the understanding of the regenerative component dynamics of Araucaria Forests in Southern Brazil. We investigated the effects of climate, light, tree component structure and anthropogenic distu
Sci. agric. (Piracicaba, Braz.). Publicado em: 20/05/2019
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3. Efeitos da arbórea introduzida Hovenia dulcis Thunb.(Rhamnaceae)sobre o componente árbóreo-arbustivo regenerante da floresta Atlântica no Sul do Brasil
Biological invasions by Hovenia dulcis Thunb., a tree from Asia, have been reported for Africa and South America. The present work aimed to evaluate the effects of the establishment of this exotic species on abundance, richness, species composition, growth, successional categories and beta diversity of natural regeneration in the Atlantic Rain Forest. Thus,
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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4. O componente arbóreo de matas de restinga arenosa no Parque Estadual de Itapuã, Rio Grande do Sul : fitossociologia, regeneração e padrões de interações mutualistas com a avifauna
Esta dissertação teve como objetivo geral ampliar o conhecimento sobre a ecologia vegetal das matas de Restinga arenosa em substratos bem drenados no Rio Grande do Sul. Para tanto, foram realizados o estudo florístico e fitossociológico do componente arbóreo de cinco capões de Restinga e a verificação de padrões de interações mutualísticas entre
Publicado em: 2007
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5. Composição florística, estrutura fitossociológica e conteúdo de nitrogênio foliar em cerradão, Luiz Antônio, SP
The cerradão is one of the forest physiognomy of the cerrado biome more threaded with the expansion of agricultural activities. The existence of remaining cerradão areas in the state with different sizes and conservation status show the necessity of studies in these areas. In São Paulo state, 237,918 ha of Cerrado Lato sensu are distributed in patches cen
Publicado em: 2003
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6. Regenerating rat liver DNA polymerases: disimilitude or relationship between nuclear and cytoplasmic enzymes?
The possible relationship between the nuclear and cytoplasmic DNA polymerases of regenerating rat liver was studied by sucrose gradient analysis, salt dissociation, and with specific inhibitors. After aqueous subcellular fractionation and removal of the nuclear membranes, three species of DNA-dependent DNA polymerases were characterized: 1) a DNA polymerase-
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7. Neuromuscular transmission at newly formed neuromuscular junctions in the regenerating soleus muscle of the rat.
1. A study of neuromuscular function in regenerating skeletal muscle fibres in the rat soleus muscle has been made. The muscle fibres were damaged in vivo by the injection of the myotoxic venom component notexin, and then allowed to regenerate spontaneously. 2. Regenerating muscle fibres generated action potentials and contracted following direct intracellul
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8. Ethanolamine modulates the rate of rat hepatocyte proliferation in vitro and in vivo
A low molecular weight, heat-resistant hepatotrophic factor in an extract from the bovine intestinal mucosa was purified and identified as ethanolamine by structural analyses. The mode of action of ethanolamine in vitro and in vivo coincided with that of the crude extract of the tissue, indicating that ethanolamine is the active component. Ethanolamine syner
The National Academy of Sciences of the USA.
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9. The proliferation of elastic fibres after skin incisions in albino mice and rats: a light and electron microscopic study.
The replacement of elastic fibres in healing skin wounds in mice and rats was studied with light and electron microscopy. New elastic fibres were seen 1 week post-wounding in the deepest regions of the scar. By 3 weeks post-wounding they could be found in the regenerating dermis. There followed a proliferation of these fibres to numbers far greater than thos
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10. Recovery of CD3+ and CD5- lymphocyte subpopulation after autologous bone marrow transplantation and chemotherapy.
Although most circulating T cells in normal subjects express both CD3 and CD5 antigens on the cell surface, a small number lack the CD5 antigen. Recipients of allogeneic bone marrow transplants develop increased numbers of CD3+ CD5- cells, particularly those who develop graft versus host disease (GVHD). This CD3+ CD5- population may rise transiently in patie
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11. Deoxyribonucleic acid of Cancer pagurus. II. Tempiate activity for a DNA-dependent DNA polymerase of eukaryotic cells
The template activity of Cancer pagurus DNA and its two components (poly d(A-T) and main component) in response to a DNA polymerase purified from regenerating rat liver has been studied and compared to the results previously obtained with synthetic templates. In the double-stranded native state, whole crab DNA and the main component were poor templates. Thei
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12. Cell-type-specific expression of rat steroid 5 alpha-reductase isozymes.
The enzyme steroid 5 alpha-reductase (EC 1.3.99.5) is a component of an intercellular signaling pathway that determines cell fate in the primordium of the mammalian reproductive tract. During male phenotypic sexual differentiation, the dihydrotestosterone product of this enzyme binds to the androgen receptor and initiates development of the external genitali