Variety Release
Mostrando 25-36 de 395 artigos, teses e dissertações.
-
25. EvoluÃÃo das caracterÃsticas morfoanatÃmicas nos ciclos de seleÃÃo do milho âSaracuraâ sob encharcamento intermitente / Evolution of morpho-anatomicals characteristics on selection cycles of maize (Zea mays L.) âSaracuraâ â BRS â 4154 under intermittent soil flooding
Although every single plant needs a certain amount of water, the excess around roots can cause severe injuries and even death of most crops. Soil flooding is one of the most important factors which affects maize crop production and development on tropical and subtropical regions. Excess of water blocks the oxygen transfer and others gases from soil to atmosp
Publicado em: 2009
-
26. Intenções e comportamentos reprodutivos de mulheres que vivenciam alta fecundidade em um grande centro urbano / Reproductive intentions and behavior of women who experience high fecundity in a large urban center
Introduction: The choices concerning about fertility are complex because they involve ideas and values of societies and their members. Many studies seek to explain the fertility socioeconomic and cultural changeable but dont consider the women reasons to select one way or another to form their families. The fertility rate below the replacement is observed in
Publicado em: 2009
-
27. Filmes nanoestruturados contendo lipossomos para liberação controlada do Ibuprofeno / Nanostructured films containing liposomes for controlled release of ibuprofen
Controlled drug delivery is a key issue in a number of nanotechnology endeavors owing to the large impact on society that may achieved if improved systems are created which allows for delivery at a specific target and with a controlled rate. Among the various paradigms employed in drug delivery, the use of liposomes is prominent because a variety of drug mol
Publicado em: 2008
-
28. Avaliação da atividade antinociceptiva espinal da toxina Ph1 isolada dp veneno da Phoneutria nigriventer em rodedores
Calcium influx through voltage sensitive calcium channels (VSCCs) plays an important role on the nociceptive transmission in the dorsal horn of the spinal cord. The intrathecal administration of VSCCs blockers, such as -conotoxin-MVIIA (- CTx-MVIIA) has analgesic effect, but it narrows the therapeutic window, presenting many adverse effects. The Brazilian sp
Publicado em: 2008
-
29. Terapia antiangiogênica de tumores utilizando células produtoras de endostatina encapsuladas em dispositivos de imunoisolamento / ANTIANGIOGENIC THERAPY USING ENDOSTATIN PRODUCER CELLS ENCAPSULATED IN IMMUNOISOLATION DEVICES.
Endostatin is a specific inhibitor of endothelial cell proliferation, migration and a potent angiogenesis inhibitor. It has been shown that continuous administration of endostatin is more effective in tumor suppression than the same dose administered s.c. daily. Achieving concentration of endostatin to combat tumor growth is complicated by the short life of
Publicado em: 2008
-
30. Pharmacological characterization of ASP49 PLA2 isolated from Bothrops pauloensis venom / Caracterização farmacologica de uma fosfolipase A2 ASP49 isolada do veneno de Bothrops pauloensis
Bothropic venom has several substances necessary to serpent survival, among them, one of the most widely studied are phospholipase A2 enzymes, that hydrolise sn-2 from membrane phospholipids, releasing lysophospholipids and fatty acids, which beyond playing a biological action in the lipid digestion process, also exhibit a wide variety of pharmacological eff
Publicado em: 2008
-
31. Conhecimentos na análise de ambientes: a pedologia e o saber local em comunidade quilombola do norte de Minas Gerais / Knowledge in the environment analysis: the pedology and local knowledge in the quilombola community on northern Minas Gerais
Theren increasing incorporation and appropriation of the epistemologies towards the sustainability, valorization of the man-environment relationships and the perception of the need for maintaining the complexity of the productive systems in response to the environmental degradation process, aggravated by practices of the reductionist paradigms. Local knowled
Publicado em: 2008
-
32. Effect of photodynamic therapy on the extracellular matrix and associated components
In many countries, photodynamic therapy (PDT) has been recognized as a standard treatment for malignant conditions (for example, esophageal and lung cancers) and non-malignant ones such as age-related macular degeneration and actinic keratoses. The administration of a non-toxic photosensitizer, its selective retention in highly proliferating cells and the la
Brazilian Journal of Medical and Biological Research. Publicado em: 05/07/2007
-
33. A mechanistic view of mitochondrial death decision pores
Mitochondria increase their outer and inner membrane permeability to solutes, protons and metabolites in response to a variety of extrinsic and intrinsic signaling events. The maintenance of cellular and intraorganelle ionic homeostasis, particularly for Ca2+, can determine cell survival or death. Mitochondrial death decision is centered on two processes: in
Brazilian Journal of Medical and Biological Research. Publicado em: 12/04/2007
-
34. Síntese e caracterização de nanocompósitos de sílica mesoporosa com partículas magnéticas para dispositivos de liberação controlada de fármacos
Ordered mesoporous materials like SBA-15 posses a network of channels and pores of well-defined size in the nanoscale range. This particular pore architecture makes them suitable for hosting a broad variety of compounds into the silica matrix, resulting in very promising material for a broad range of applications, including magnetic carriers for drug deliver
Publicado em: 2007
-
35. OTIMIZAÇÃO E VALIDAÇÃO DA QUANTIFICAÇÃO DE MALONDIALDEÍDO PLASMÁTICO POR CROMATOGRAFIA LÍQUIDA DE ALTA EFICIÊNCIA COM DETECÇÃO VISÍVEL / OPTIMIZATION AND VALIDATION OF THE PLASMATIC MALONDIALDEHYDE QUANTIFICATION BY HIGH PERFORMANCE LIQUID CHROMATOGRAPHY WITH VISIBLE DETECTION
The overproduction of reactive oxygen and nitrogen species or the reduction in the antioxidant capacity results in the oxidative stress. The lipid peroxidation involves the oxidative deterioration of polyunsaturated fatty acids and it process is involved in the pathogenesis of diseases such as cancer, diabetes, atherosclerosis and neuro-degenerative diseases
Publicado em: 2007
-
36. Estudo dos parametros fisico-quimicos envolvidos na formação de microcapsulas produzidas por coacervação complexa. / Study of the physical-chemical parameters in the microcapsules formation produced for complex coacervation.
Microencapsulation is a technology used as a potential tool in the protection of a product and the modulation of its core release. Currently, studies in the area of microparticles and controlled release are considerably advanced and a variety of techniques and products are available, among them differents processes for atomization (spray drying, spray coolin
Publicado em: 2006