نتایج جستجو برای: vb

تعداد نتایج: 3270  

Journal: :Journal of strength and conditioning research 2007
Nuria Garatachea Alfonso Jiménez Guilherme Bresciani Nelson A Mariño Javier González-Gallego José A de Paz

The purpose of this study was to examine whether and how cycle time duration affects energy expenditure and substrate utilization during whole-body vibration (WBV). Nine men performed 3 squatting exercises in execution frequency cycles of 6, 4, and 2 seconds to 90 degrees knee flexion with vibration (Vb+) (frequency was set at 30 Hz and the amplitude of vibration was 4 mm) and without vibration...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2007
Sandra M Mooney Michael W Miller

Most CNS systems, including the trigeminal-somatosensory system, develop via a hierarchical order (from the periphery and up the neuraxis). We tested the hypothesis that development of the trigeminal system can proceed via a nonhierarchical mechanism (i.e., that neuronogenesis can occur postnatally). Preweanling rats were perfused, and brain sections were stained with cresyl violet or immunolab...

Journal: :Genomics 1991
M I Lomax C L Hsieh B T Darras U Francke

Subunit Vb of mammalian cytochrome c oxidase (COX; EC 1.9.3.1) is encoded by a nuclear gene and assembled with the other 12 COX subunits encoded in both mitochondrial and nuclear DNA. We have cloned the gene for human COX subunit Vb (COX5B) and determined the exon-intron structure by both hybridization analysis and DNA sequencing. The gene contains five exons and four introns; the four coding e...

Journal: :Journal of bacteriology 1997
H Kinoshita H Ipposhi S Okamoto H Nakano T Nihira Y Yamada

BarA of Streptomyces virginiae is a specific receptor protein for virginiae butanolides (VBs), a member of the butyrolactone autoregulators of Streptomyces species. Sequencing around the barA gene revealed two novel open reading frames: one upstream, barX, encoding a homolog of AfsA of Streptomyces griseus and another downstream, barB. Northern (RNA) blot analysis for S. virginiae demonstrated ...

Journal: :Neurocomputing 2014
Lei Shi Zhiyong Liu Shikui Tu Lei Xu

Considering Factor Analysis (FA) for each component of Gaussian Mixture Model (GMM), clustering and local dimensionality reduction can be addressed simultaneously by Mixture of Factor Analyzers (MFA) and Local Factor Analysis (LFA), which correspond to two FA parameterizations, respectively. This paper investigates the performance of Variational Bayes (VB) and Bayesian Ying-Yang (BYY) harmony l...

Journal: :IEICE Transactions 2005
Takatoshi Jitsuhiro Satoshi Nakamura

We propose a new method both for automatically creating non-uniform, context-dependent HMM topologies, and selecting the number of mixture components based on the Variational Bayesian (VB) approach. Although the Maximum Likelihood (ML) criterion is generally used to create HMM topologies, it has an over-fitting problem. Recently, to avoid this problem, the VB approach has been applied to create...

2006
Matthew J. Beal Zoubin Ghahramani

A key problem in statistics and machine learning is inferring suitable structure of a model given some observed data. A Bayesian approach to model comparison makes use of the marginal likelihood of each candidate model to form a posterior distribution over models; unfortunately for most models of interest, notably those containing hidden or latent variables, the marginal likelihood is intractab...

Journal: :NeuroImage 2017
Per Sidén Anders Eklund David Bolin Mattias Villani

Spatial whole-brain Bayesian modeling of task-related functional magnetic resonance imaging (fMRI) is a great computational challenge. Most of the currently proposed methods therefore do inference in subregions of the brain separately or do approximate inference without comparison to the true posterior distribution. A popular such method, which is now the standard method for Bayesian single sub...

Journal: :Stroke 2013
Giosue Gulli Lars Marquardt Peter M Rothwell Hugh S Markus

BACKGROUND AND PURPOSE Recent prospective studies have shown vertebrobasilar (VB) stenosis predicts stroke risk in posterior circulation stroke and transient ischemic attack. It is unclear whether this association is independent of other risk factors, and whether intracranial or extracranial stenosis confers different risks. METHODS A pooled individual patient analysis of data from 2 prospect...

Journal: :The Journal of pharmacology and experimental therapeutics 2006
Lige Liu Thomas Zheng Margaret J Morris Charlott Wallengren Alison L Clarke Christopher A Reid Steven Petrou Terence J O'Brien

Carbamazepine (CBZ) aggravates many generalized seizures types, particularly absence seizures, but the mechanisms underlying this are poorly understood. GABA signaling within the reticular nucleus (Rt) and the ventrobasal complex (VB) of the thalamus is critical to the neurophysiology of absence seizures. The hypothesis that CBZ aggravates absence seizures by acting at the VB thalamus via a GAB...

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