Weak Localization
Mostrando 1-12 de 98 artigos, teses e dissertações.
-
1. Gliclazide reduced oxidative stress, inflammation, and bone loss in an experimental periodontal disease model
Abstract Objective The aim of this study was to evaluate the effects of gliclazide on oxidative stress, inflammation, and bone loss in an experimental periodontal disease model. Material and Methods Male albino Wistar rats were divided into no ligature, ligature, and ligature with 1, 5, and 10 mg/kg gliclazide groups. Maxillae were fixed and scanned usin
J. Appl. Oral Sci.. Publicado em: 21/02/2019
-
2. Antilocalization effect on photo-generated carriers in semi-insulating GaAs sample
Magnetoresistance measurements were performed on an illuminated semi-insulating GaAs sample with intrinsic deep level defects. Electrical carriers were photo-generated under light excitation and positive magnetoresistance for B < 0.2 T was observed in the whole range of temperatures measured (220-315 K). Using the model developed by H. Fukuyama and K. Hoshin
Materials Research. Publicado em: 26/06/2012
-
3. Efeito analgésico periférico do tramadol em ratos / Local analgesic effect of tramadol in rats
INTRODUCTION: Tramadol is a centrally and peripherally-acting drug, found as a racemic mixture of two enantiomers (+) and (-)-tramadol and effective in the treatment of moderate to severe pain. Tramadol has an -opioid effect ten times less potent than codeine. After first pass metabolism, tramadol is metabolized to various compounds and its major metabolites
Publicado em: 2010
-
4. EEG spike source localization before and after surgery for temporal lobe epilepsy: a BOLD EEG-fMRI and independent component analysis study
Simultaneous measurements of EEG-functional magnetic resonance imaging (fMRI) combine the high temporal resolution of EEG with the distinctive spatial resolution of fMRI. The purpose of this EEG-fMRI study was to search for hemodynamic responses (blood oxygen level-dependent - BOLD responses) associated with interictal activity in a case of right mesial temp
Brazilian Journal of Medical and Biological Research. Publicado em: 2009-06
-
5. EstatÃstica de contagem de carga e efeitos de interferÃncia em sistemas mesoscÃpicos
In this thesis we presented a detailed study about full counting statistics of transmitted charge and accumulated phase and the quantum interference corrections to the average conductance and the average shot-noise power in non-ideal ballistic chaotic cavities. In the theoretical analysis of this mesoscopic system, we obtained analytical expressions for the
Publicado em: 2009
-
6. Perfis das distroglicanas e morfo-fisiologia do lobo ventral da prostata de camundongos distroficos / Dystroglycans and laminin BETA 3 features on the prostate of mdx mice
The prostate is a fundamental accessory sex gland for the male reproductive process and the stroma-epithelium interaction has an important role in prostate structural maintenance and function. The basal membrane is an interaction link, offering mechanical and physiological support. Nowadays, different studies suggest that dystroglycan (DG), which is an adhes
Publicado em: 2009
-
7. Quantum dots: photodetectors, weak localization and counter-rotating edge states / Pontos-quânticos: fotodetectores, localização-fraca e estados de borda contra-rotativos
In this work we present transport properties of heterostructures with quantum-dots. Three subjects were exploited: on the first one, we observed anomalous quantum Hall plateaus, for wich we attributed to the existence of counter-rotating edge-states; on the second subject, we determined the decoherence time of the bidimensional electron system as a function
Publicado em: 2008
-
8. Análise dos principais segmentos da indústria marítima brasileira: estudo das dimensões e dos fatores críticos de sucesso inerentes à sua competitividade. / Analysis of the principal segments of Brazilian maritime industry: study of dimensions and the critical success factors inherent to its competitiveness.
The purpose of this study is analyzing the competitiveness of Brazilian maritime industry based on models of Slack, Bolwijn and Kumpe, justified in the sand cone model by Ferdows and De Meyer. The intention is describing the present situation of the industry, its main obstacles, characteristics and localization of the main shipyards in Brazil, defining its v
Publicado em: 2008
-
9. Coherence of elementary excitations in disordered GaAs/AlGaAs superlattices
The localization properties of the single-particle and collective electron excitations were investigated in the intentionally disordered GaAs/AlGaAs superlattices by weak field magnetoresistance and Raman scattering. The localization length of the individual electron was found to be considerably larger than that one of the collective excitations. This sugges
Brazilian Journal of Physics. Publicado em: 2006-09
-
10. Dimensional crossover and weak localization in a 90 nm n-GaAs thin film
We report on the magnetotransport in a 90 nm thick n-type GaAs epitaxial thin film in the weak localization (WL) regime. Low temperature (T≤50 K) magnetotransport data are fit with WL theory, from which the phase coherence time, τϕ∝T−p (p=1.22±0.01), are extracted. We conclude that the dominant dephasing mechanism at these temperatures is electron-e
American Institute of Physics.
-
11. Transient Nucleolar Localization Of U6 Small Nuclear RNA In Xenopus Laevis Oocytes
Recent studies on the 2′-O-methylation and pseudouridylation of U6 small nuclear RNA (snRNA) hypothesize that these posttranscriptional modifications might occur in the nucleolus. In this report, we present direct evidence for the nucleolar localization of U6 snRNA and analyze the kinetics of U6 nucleolar localization after injection of in vitro transcribe
The American Society for Cell Biology.
-
12. Subcellular Localization of RPB5-Mediating Protein and Its Putative Functional Partner
We previously identified a novel cellular protein, RPB5-mediating protein (RMP), that retains corepressor activity and functionally antagonizes transcriptional modulation via hepatitis B virus X protein. The subcellular localization of RMP was examined using green fluorescent protein-fused protein forms. We found that a nuclear localization signal (NLS) and
American Society for Microbiology.