Correlated Channels
Mostrando 13-24 de 142 artigos, teses e dissertações.
-
13. Characterization of genes and serum proteins related to type 2 diabetes mellitus in patients treated with pioglitazone / Caracterização de genes e proteínas plasmáticas relacionadas ao diabetes melito do tipo 2 em indivíduos tratados com pioglitazona
The diabetes mellitus is a group of metabolic diseases characterized by hyperglycemia, the result from insulin secretion or action deficiency, or both. Pioglitazone is an oral hypoglycemic drug, included in the class of thiazolidinediones, which work by binding to nuclear receptors PPARY nuclear what improve the state of resistance to insulin. Pioglitazone m
Publicado em: 2008
-
14. Classificação de refrigerantes através de análise de imagens e análise de componentes principais (PCA)
This paper describes an approach for the colour-based classification of RGB (red-green-blue) images, acquired using a common scanner, of commercial carbonated soft drinks. Mean histograms of image colour channels were evaluated for the PCA classification of 29 brands of Guaraná, Cola, and orange flavors. Loadings for principal component axes resulted in dif
Química Nova. Publicado em: 2008
-
15. Modelo de canal de estados finitos para canais com desvanecimento correlacionado no tempo e desisÃo suave / Finite-state channel model for time-correlated fading channels with soft-decision
Modelos de canais de estados finitos Markovianos (FSMC, do inglÃs Finite State Markov Channel) sÃo comumente usados para caracterizar a memÃria de canais discretos binÃrios (entrada binÃria, saÃda binÃria). Este trabalho propÃe um novo modelo pertencente à classe FSMC, denominado de modelo com apagamento (MA), que foi idealizado para modelar canais
Publicado em: 2008
-
16. Contribuições a modelagem, analise e simulação de canais de desvanecimento / Contributions to the modeling, analysis, and simulation of fading channels
This work provides the following contributions to the study of fading channels: (i) closed-form approximations to the probability density function and the cumulative distribution function of sums of independent envelopes under Nakagami, Rice, Hoyt, Weibull, or lognormal fading; (ii) general expressions for the average fade rate and the average fade duration
Publicado em: 2006
-
17. Estatisticas de ordem superior para canais de desvanecimento Weibull e Nakagami-m / Higher order statistics for Nakagami-m and Weibull fading channels
Esta dissertação provê uma análise das estatísticas de ordem superior para canais de desvanecimento WeibuII e Nakagami-m. Considerando canais de desvanecimento WeibulI, devido à ausência de um modelo físico para tais canais, estatísticas conjuntas de duas variáveis WeibuII correlacionadas foram obtidas em forma fechada e em função de parâmetros
Publicado em: 2006
-
18. Validação de estatisticas de ordem superior para canais com desvanecimento Weibull e Nakagami-m
Esta dissertação analisa e valida, através de medidas de campo, estatísticas de ordem superior para canais com desvanecimento Weibull e Nakagarni-m. Considerando canais com desvanecimento Weibull, devido à ausência de um modelo físico, estatísticas conjuntas de duas variáveis Weibull correlacionadas foram obtidas em forma fechada e em função de pa
Publicado em: 2006
-
19. Carcinogênese pulmonar em camundongos portadores de deleção em um dos alelos do gene da Cx43 / Lung carcinogenesis in mice with a deletion in one allele of Cx43 gene
Gap junctions are communicating protein channels formed between adjacent cells that allow the exchange of molecules and ions smaller than 1kDa; connexins are proteins that form these junctions. Studies in the literature have been showing the lower level of cell communication capacity and alterations in the expression and/or localization of connexins in neopl
Publicado em: 2005
-
20. AplicaÃÃo de mÃtodos correlacionados de estrutura eletrÃnica ao estudo de estados excitados de molÃculas em fase gasosa e em soluÃÃo
Ab-initio electronic structure calculations, at correlated level, are applied to the study of excited states of molecules in gas-phase and solution. The electron correlated methods comprise the multiconfigurational SCF (MCSCF), and the multi-reference CI method with single and double excitations (MR-CISD), which is used in combination with MCSCF, then provid
Publicado em: 2005
-
21. Aspectos Morfo-Dinâmicos daComplexo Lagunar Nísia Floresta-Papeba-Guaraíras, Região Costeira Sul Oriental Do RN
This dissertation presents the results of research developed in the Nísia Floresta-Papeba-Guaraíras Lagoon Complex, located on the south coast of the Rio Grande do Norte State. The main objectives of this dissertation were the stratrigraphic characterization, in detail scale, of the and the coastal dynamics study of the lagoonal deposits sedimentation, as
Publicado em: 2000
-
22. The permeability of gamma-aminobutyric acid-gated chloride channels is described by the binding of a "cage" convulsant, t-butylbicyclophosphoro[35S]thionate.
The "cage" convulsant t-butylbicyclophosphoro[35S]thionate ([35S]TBPS) binds with high affinity to sites at or near a gamma-aminobutyric acid (GABA)-gated chloride channel according to current hypothesis. We now report that the potencies of a series of anions in enhancing [35S]TBPS binding correlated highly with their relative permeabilities through GABA-gat
-
23. Apoptotic proteins Reaper and Grim induce stable inactivation in voltage-gated K+ channels
Drosophila genes reaper, grim, and head-involution-defective (hid) induce apoptosis in several cellular contexts. N-terminal sequences of these proteins are highly conserved and are similar to N-terminal inactivation domains of voltage-gated potassium (K+) channels. Synthetic Reaper and Grim N terminus peptides induced fast inactivation of Shaker-type
The National Academy of Sciences.
-
24. Requirement for the synaptic protein interaction site for reconstitution of synaptic transmission by P/Q-type calcium channels
Cav2.1 channels, which conduct P/Q-type Ca2+ currents, were expressed in superior cervical ganglion neurons in cell culture, and neurotransmission initiated by these exogenously expressed Ca2+ channels was measured. Deletions in the synaptic protein interaction (synprint) site in the intracellular loop between domains II and III of Cav2.1 channels reduced th
The National Academy of Sciences.