Microbial Flora
Mostrando 25-36 de 232 artigos, teses e dissertações.
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25. Plantas transgênicas e a microbiota do solo.
ABSTRACT: Soil micro-organisms represent a key hole in the nutrient cycle and in the maintenance of the fertility, besides execute another variety of important functions for the plants and the environment. With the possibility of the transgenic crops to cause negative impacts on the soil microbial communities, emerge the necessity to deep evaluate the real e
Planaltina. Publicado em: 2011
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26. Uso de parâmetros microbiológicos como indicadores para avaliar a qualidade do solo e a sustentabilidade dos agroecossistemas.
ABSTRACT: Every factor that has a negative impact on soil microorganisms sooner or later will reflect in a deterioration of soil chemical and physical properties specially, those related to soil organic matter losses. This paper was based on a talk presented at "The International Symposium of Indicators of Soil Quality" held on Marco Juarez-Argentina. Some o
Planaltina. Publicado em: 2011
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27. Mineralização de nitrogênio e biomassa microbiana em solos de mata de galeria: efeito do gradiente topográfico.
RESUMO: A disponibilidade de nitrogênio (N) inorgânico para as plantas, geralmente, depende da taxa de mineralização da matéria orgânica. A biomassa microbiana, além de indicadora da qualidade do solo, está relacionada à disponibilização de nutrientes. Este trabalho objetivou determinar as taxas de mineralização líquida de N e o carbono da biom
Planaltina. Publicado em: 2011
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28. Indicadores biológicos associados ao ciclo do fósforo em solos de cerrado utilizando plantio direto e plantio convencional.
RESUMO: O objetivo deste trabalho foi avaliar a influência do plantio direto, do preparo convencional do solo e de plantas de cobertura sobre indicadores biológicos associados ao ciclo do fósforo (P). O trabalho foi realizado em três áreas adjacentes, num Latossolo Vermelho-Amarelo, distribuídas da seguinte maneira: área I, dois anos de experimentaç�
Planaltina. Publicado em: 2011
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29. Diversidade e bioprospecção de actinobactérias isoladas de manguezais. / Diversity and bioprospecting of actinobacteria from mangrors.
Mangroves are coastal ecosystems which occur in the areas of transition between marine and terrestrial environments throughout the tropical and subtropical regions, suffering direct tide influence. The diverse microbial communities are important to the nutrient cycling occurrence and consequently to the maintenance of these environments fauna and flora biodi
Publicado em: 2009
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30. Anti-carie and antiproliferative effect of 7-epiclusianone, isolated from Rheedia genus plant / Avaliação das atividades anticarie e antiproliferativa da 7-epiclusianona isolada da planta do genero Rheedia
Considering the great use of plants as medicinal substances in the popular medicine, it is critical to investigate their biological and chemical properties in order to not only help to enhance our understanding of the therapeutic potential of these natural products, but also how to make them more effective pharmacological agents. The enormous biodiversitiy o
Publicado em: 2008
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31. Anacardium occidentale: AvaliaÃÃo do Efeito Fotoprotetor e Conservante em PreparaÃÃes CosmÃticas
Chronic skin exposure to ultraviolet (UV) sun radiation can cause multiple damages the skin depending on the amount, form of UV radiation and type of individuals exposed. Damages include sunburn, oxidative stress and foto aging. Sunscreen can help to prevent serious diseases such as skin cancer, by minimizing cutaneous aggression. In this way, snscreen has a
Publicado em: 2007
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32. Clustering of Enterococcus faecalis infections in a cardiology hospital neonatal intensive care unit
Early identification of an outbreak is one of the main advantages of routine epidemiological surveillance. Enterococcus spp. used to be regarded as microorganisms of low pathogenicity, because they are part of the normal microbial flora of the gastrointestinal and genitourinary tract. Recently, they have emerged as important pathogenic agents, sometimes caus
Brazilian Journal of Infectious Diseases. Publicado em: 2006-04
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33. Evaluation of biocide activity on biofilms formed in cutting fluid employed in metal working industry / Avaliação da atividade de biocidas em biofilmes formados a partir de fluido de corte utilizado na usinagem de metais
Biofilms are complex structures consisting of interdependent microbial species associations acting as surface colonization mechanism. Once undesirably installed at an industrial plant, biofilms contribute to contaminate many process areas, because they represent sources of microbial release and dissemination, which can deteriorate products, causing financial
Publicado em: 2006
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34. Bacterial and fungal colonization of burn wounds
A prospective study of fungal and bacterial flora of burn wounds was carried out from February 2004 to February 2005 at the Burns Unit of Hospital Regional da Asa Norte, Brasília, Brazil. During the period of the study, 203 patients were treated at the Burns Unit. Wound swab cultures were assessed at weekly intervals for four weeks. Three hundred and fifty
Memórias do Instituto Oswaldo Cruz. Publicado em: 2005-08
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35. Biogenic amines, volatile amines, free tryptophan and urea as chemical indices for quality and freshness evaluation of fish and sellfish. / Aminas biogenicas, aminas volateis, triptofano livre e ureia como indices quimicos de qualidade e frescor do pescado.
Fish and shellfish muscle is highly susceptible to spoilage during storage. Because quality quickly decreases during storage reliable chemical indices for quality and freshness evaluation are greatly needed. Total volatile bases-nitrogen (TVB-N), trimethylamine (TMA), biogenic amines, nucleotides, urea and free tryptophan have been suggested as freshness ind
Publicado em: 2005
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36. "Estudo da microbiota intestinal em doentes com retocolite ulcerativa antes e após retocolectomia com anastomose de bolsa ileal ao canal anal" / Intestinal microbiota in patients with ulcerative colitis, before and after proctocolectomy and ileal pouch-anal anastomosis
Este estudo tem como objetivo, descrever a microbiota intestinal de pacientes com retocolite ulcerativa grave, em tratamento clínico, antes e após retocolectomia com anastomose de bolsa ileal ao canal anal. Comparou-se a flora bacteriana do íleo terminal e do reto no pré-operatório com a flora encontrada na bolsa ileal após dois e oito meses do fechame
Publicado em: 2004