Peculiarities And Species
Mostrando 13-24 de 31 artigos, teses e dissertações.
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13. Pirarucu (Arapaima Gigas) Population Dynamics of Mamirauá Sustainable Development Reserve (MRSD),Amazonian / A Dinâmica Populacional do Pirarucu (Arapaima gigas) na reserva de Desenvolvimento Sustentável Mamirauá (RDSM), Amazônia
Pirarucu ( Arapaima gigas) has been one of the most important economic resources among all the fish species of the Brazilian Amazon for more than three centuries. The introduction of modern technologies of exploitation brought serious threats to the preservation of this species. Adequate management strategies have to be urgently introduced in order to preven
Publicado em: 2009
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14. A vegetaÃÃo em afloramentos rochosos no semi-Ãrido: diversidade e respostas ao ambiente
The objectives of this work were to analyze the floristic composition and the vegetation structure in two rocky outcrops, located in the semi-arid of PE, Northeast of Brazil. Also was tested the possible relationships between the studied vegetation and four environmental variables: area, soil depth, inclination of the rock and locality. This work documents 2
Publicado em: 2009
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15. Quality of coffee (Coffea arabica L.) pre-processed in coconut / Qualidade de café (Coffea arabica L.) pré-processado por via seca
The maturity stage physiological of coffee fruit after their harvest may influence on the physiological quality of grains and the final quality of coffee drink, mainly because of their peculiarities. The objective of this study was to verify some aspects of pre-process of coffee in coconut, harvesting at different percentages of cherry maturation stage, rela
Publicado em: 2009
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16. Avaliação do Efeito do Lipofosfoglicano (LPG) de Leishmania amazonensis e de Leishmania braziliensis na infecção por Leishmania / Avaliação do Efeito do Lipofosfoglicano (LPG) de Leishmania amazonensis e de Leishmania braziliensis na infecção por Leishmania
The search for new drugs for the treatment of Leishmaniasis has focused in the understanding of the mechanisms in host-parasite interaction. This disease manifests itself in a wide array of manifestations due to both parasite- and host-related peculiarities. The early immune response caused by the parasite can be crucial in the development of infection and i
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/06/2008
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17. Estudo morfofisiologico do desenvolvimento das especies Galianthe grandifolia E. L. Cabral (Rubiaceae) e Campulocliniun chlorolepis Baker (Asteraceae) submetidas a diferentes concentrações de cadmio / Morphophysiological development of Galianthe grandifolia E. L. Cabral (Rubiaceae) and Campulocliniun chlorolepis Baker (Asteraceae) subjected to different cadmium concentrations
The accumulation of toxic metals in the soil brings forth great environmental damages, especially cadmium, due to its high toxicity and cumulative effects on the organisms in general. There are a few studies regarding heavy metals and Cerrado native species. The aim of this work was to assess the behavior of two Cerrado species cultivated in the greenhouse:
Publicado em: 2008
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18. A natureza jurídica da comissão de permanência / The legal nature of the commission of permanence
The present paperwork has the purpose to study the legal nature of the commission of permanence in the Brazilian Law with the intention of demonstrating that, in spite of the fact that still there is controversy on its use; the normative that support its sustentation were issued by the Conselho Monetário Nacional. Without denouncing the anatocism and keepin
Publicado em: 2008
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19. Critérios de relevância para classificação de cavernas no Brasil
What is the scientific basis used for the classification of caves in Brazil? Are the attributes identified today and the aspects evaluated sufficient to classify natural underground cavities? To answer these questions, 1,169 caves were selected as a sample of the universe of 6,522 natural underground cavities known and registered in Brazil. A questionnaire w
Publicado em: 2008
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20. Fruit, seed and seedling characterization and embryo culture of physic nut (Jatropha curcas L.) / CaracterizaÃÃo de Frutos, Sementes e PlÃntulas e Cultivo de EmbriÃes de PinhÃo Manso (Jatropha curcas L.)
Physic nut has a medical and economical importance due to its pharmaceutical properties and increasing interest in fuel industry for biodiesel production, respectively. To be able to attend an increasing demand for Jatropha curcas L. seedlings and to better understand the species, this work aimed to describe its fruit and seed morphologies, its seedling deve
Publicado em: 2007
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21. Interações entre plantas e beija-flores numa comunidade de Floresta Atlantica Montana em Itatiaia, Rio de Janeiro
Studies of plant-pollinator interactions in vegetation communities can contribute to an understanding of evolutionary and ecological questions. This study sought to relate floristic composition, floral features, resource availability and hummingbird visitation in an ornithophilous assemblage in southeastern Brazil. During two years, data on life form, habita
Publicado em: 2006
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22. Estudo da participação de metais traço em uma linha d`água de um tanque de cultivo de camarão marinho do município de Santa Rita-PB
Brazil, it is nowadays, is one of the main producing of sea shrimp of the world. Due to this position, necessary that is done there are discussions that relates this activity to the environmental preservation, aiming avoid, among others problems, irreparable damages to the mangroves ecosystem and modification in the water quality of the rivers that receive e
Publicado em: 2006
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23. Isoenzymatic and morphological diversity of yams (Dioscorea spp.) collected in swiddens of traditional agriculture of the Ribeira River Valley - SP / Diversidade isoenzimática e morfológica de inhame (Dioscorea spp.) coletados em roças de agricultura tradicional do Vale do Ribeira - SP
Traditional agriculturists of the south region of the State of São Paulo have been maintainers of a great repository of genetic diversity and knowledge regarding the management peculiarities of this diversity. The yam (Dioscorea spp.) culture is maintained and cultivated in this region in swiddens that use the system of coivara. This research had the ob
Publicado em: 2005
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24. Caracterização dos ovarios e do desenvolvimento ovocitario, e da recuperação ovariana pos-parto do platy (Xiphophorus maculatus) (Teleostei, Poeciliidae) em condições laboratoriais controladas e sob ação do hormonio de crescimento
The platy Xiphophorus maculatus (Poeciliidae), is an ornamental freshwater fish, ovoviviparous and able to produce offspring throughout the year, when maintained at the ideal temperature and photoperiod. This fish is considered a promising species for wide scale production and easily adaptable to laboratory conditions. It presents internal fertilization, spe
Publicado em: 2004