Kinectics
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. O ß-hidroxibutirato modifica os processos de ativação e inativação dos canais para sódio e potássio em corpos celulares de neurônios dos gânglios das raizes dorsais de ratos.
Under physiological conditions, the ketone bodies -hydroxybutyrate, acetoacetate and acetone are products of -oxidation of fatty acids that occurs in hepatocytes in response to hypoglycemia. This process occurs during fasting, high fat diets (such as the ketogenic diet, used in cases of drug-resistant epilepsy) and during diabetes mellitus in order to meet t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/12/2011
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2. Efeito do protocolo de ativação da polimerização e envelhecimento acelerado em algumas propriedades de cimentos resinosos / Effects of polymerization activation protocol and accelerated aging in some resin cements properties
The study aimed to evaluate the effects of curing protocol and accelerated aging on some properties of dual-cure resin cements. Additionally, the effects of different ambient temperature and aging on the working and setting times were investigated when cements were self-cured only. Properties evaluated were degree of conversion as determined by FTIR-ATR spec
Publicado em: 2010
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3. Estudo termoanalitico e cinetico da combustão de oleo pesado / Thermoanalysis and reaction kinetics of heavy oil combustion
One of the main challenges in studies on In Situ Combustion resides in developing a kinetic reaction model to represent the dynamics of the numerous chemical reactions that occur at different temperature ranges. The objective of the present research is to develop a study on the oxidation behavior of a crude Brazilian oil and obtain kinetic parameters from th
Publicado em: 2008
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4. Propriedades bioquímicas e cinético-enzimáticas de cisteíno- proteases do intestino médio da lagarta da soja / Biochemistry and kinectics-enzymatics properties of cysteine-proteases of the velvetbean caterpillar midgut
Protease inhibitors that react with insect specific proteases are candidates to have their genetic code inserted in genetically modified plants. The first step to achieve this is the characterization of proteolytic enzymes of these insects intestines. Cysteine-protease of the soluble and insoluble fractions from the midgut of Anticarsia gemmatalis were chara
Publicado em: 2008
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5. Extração supercritica dos oleos volateis de Achyrocline sautereioides (Macel) e Vetiveria zizanioides (Vetiver) : determinação da cinetica de estração e estimativa de custos de manufatura. / Supercritical extraction of volatile oils from Achyrocline sautereioides (Macel) and Vetiveria zizanioides (Vetiver) : determination of extraction kinectics and cost of manufacturing estimation.
In this work, the kinetic behavior and manufacture costs of vegetal extract processed by supercritical technology were studied. The kinetic parameters of the process in different conditions of temperature and pressure were determined, the chemical composition of extracts was evaluated and the manufacture costs were estimated. Two plants were studied: Achyroc
Publicado em: 2007
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6. Characterization of musculoskeletal system in individuals with mucopolysaccharidosis type II : some kinectics features and functional consequences / Caracterização do sistema musculo-esqueletico em individuos com mucopolissacaridose Tipo II : alguns aspectos cineticos e consequencias funcionais
Mucopolysaccharidosis type II (MPS-II) is a rare lysosomal storage disorder caused by deficiency in the activity of the enzyme iduronate-2-sulphatase. This enzyme is responsible for the catabolism of two different glycosaminoglycans (GAGs), dermatan sulfate and heparan sulfate. Lysosomal accumulation of these glycosaminoglycan molecules results in cell, tiss
Publicado em: 2007
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7. Atividade hipoglicemiante da trans-desidrocrotomia estraÃda do Croton Cajucara encapsulada em microesferas de copolÃmero de Ãcido lÃctico e glicÃlico
This work aims the achievement of PLGA microparticles containing DCTN, their physicochemical characterization as well as the evaluation of their in vitro kinetics profile and in vivo hypoglicemic activity. The PLGA microspheres were obtained by a multiple emulsion technique followed by solvent evaporation. The microspheres morphology were evaluated by light
Publicado em: 2005
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8. Caracterização da paracoccidioidomicose-infecção como a forma de resistencia da paracoccidioidomicose humana : comparação com as formas juvenil e adulta da doença
Paracoccidioidomycosis (PCM) presents three major forms: PCM-infection (PI); adult form (AF) and juvenile form (JF). The aim of this study was to compare the immunological response in these groups through the analysis of the kinectics of mRNA expression of some cytokines and chemokines (IL-2, IL-4, IL-5, IL-6, IL-lO, IFN-y, TGF p, TNF-a, CXCLS, CXCL9 and CXC
Publicado em: 2005
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9. Alterações da aorta em ratas portadoras de neoplasia
Cancer cachexia is a systemic disorder composed by physical wasting features and metabolic disturbance. Although skeletal muscle and fat tissue are the most affected structures, atrophy of heart, spleen, liver and kidney has also been described. Clinical and experimental data about alterations due to cachexia of the pre-existing host vessels are rare. The pu
Publicado em: 2000
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10. Estudo do controle do crescimento de nanoestruturas semicondutoras do tipo CdTe e CdTeS em matrizes vitreas borosilicatos
In this thesis we study the growth kinectics of semiconductor nanoestructures in borosilicate glass matrix. We study the fabrication methods which allow us to obtain very low size dispersion and deep trap defects free nanostructures. We use small angle x-rays scattering (SAXS) techniques with synchrotron light to study the samples growth in situ, absorption
Publicado em: 1996
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11. Kinectics of beta-galactosidase synthesis in Escherichia coli at 5 C.
The defect in protein synthesis that is observed in Escherichia coli after transfer to low temperature was studied. For the enzyme beta-galactosidase, the elongation reactions of transcription and translation can take place slowly but normally at 5 C. The time necessary to complete the coupled synthesis of the beta-galactosidase messenger ribonucleic acid an
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12. In vitro binding of L-triiodothyronine to receptors in rat liver nuclei. Kinectics of binding, extraction properties, and lack of requirement for cytosol proteins.
Isolated hepatic nuclei from euthyroid rats were incubated with tracer (125I)L-triiodothyronine (T3) and increasing doses of nonradioactive T3 for 30 min at 37degrees C. The T3 bound specifically to nuclear sites increased with increasing T3 doses to a plateau, which represented the nuclear binding capacity, M. Addition of 1 mM KCN, NaF, dinitrophenol, oriod