نتایج جستجو برای: patches and matrix

تعداد نتایج: 16872335  

2014
SEEMA ARKVANSHI NIDA AKHTAR SHIV SANKAR BHATTACHARYA

As skin is a readily accessible organ of the body, it acts as the portal of entry for extraneous substances for their effective transdermal delivery. Possessing various advantages, it has the limitation of low permeability of drugs across it, limiting the efficacy of drugs. Therefore, various carrier systems have been developed to enhance the permeation deep into the systemic circulation. The p...

2014
Sara L Zeigler William F Fagan

The primary focus of studies examining metapopulation processes in dynamic or disturbance-dependent landscapes has been related to spatiotemporal changes in the habitat patches themselves. However, like the habitat patches, opportunities for movement between patches can also exist intermittently in dynamic landscapes, creating transient connectivity windows - which we define as a period of time...

Ebadi Atyeh Nazari Sajjad Robati Reza Saffarian Zahra

A 33–year-old woman was visited at the dermatological clinic of Loghman-e-Hakim Hospital with multiple hypopigmented patches on her right arm, buttocks and flanks. Her lesions developed over the past year with no regression. Lesions were resistant to multiple antifungal therapies. Clinical examination revealed multiple circular or oval patches on the right arm, flank and sacral area. There was ...

2013
Ghada Mounir Shaker Alaa A. Hefnawy

The paper deals with image denoising with a new approach towards obtaining high quality denoised image patches using only a single image. A learning technique is proposed to obtain highly correlated image patches through sparse representation, which are then subjected to matrix completion to obtain high quality image patches. this paper show a framework for denoising by learning an appropriate ...

2007
JOHN B. RUNDLE HIROO KANAMORI

In recent years it has been recognized that the level of shear and normal stress along a fault can vary; thus the stress is spatially and temporally inhomogeneous. Moreover, it has also been suspected that faults might interact in some way, with the result that a variety of earthquake magnitudes might be produced along a given length of fault at varying times. In order to explore these ideas we...

1998
Michael Schreiber Uwe Grimm Rudolf A. Römer Jian-Xin Zhong

We study statistical properties of energy spectra of a tight-binding model on the twodimensional quasiperiodic Ammann-Beenker tiling. Taking into account the symmetries of finite approximants, we find that the underlying universal level-spacing distribution is given by the Gaussian orthogonal random matrix ensemble, and thus differs from the critical level-spacing distribution observed at the m...

Journal: :iranian journal of basic medical sciences 0
samaneh hajihoseini hiv and hepatitis research center, faculty of laboratorial sciences, gerash, fars, iran mirza khalil bahmani hiv and hepatitis research center, faculty of laboratorial sciences, gerash, fars, iran ayyoob khosravi golestan university of medical sciences, gorgan, golestan, iran eslam ghezelsofla hiv and hepatitis research center, faculty of laboratorial sciences, gerash, fars, iran abbas ghaderi cancer research institute, shiraz university of medical sciences, shiraz, fars, iran

objective(s) matrix metalloproteinases comprise a family of enzyme that is able to degrade components of extra cellular matrix. there are single nucleotide polymorphisms in the promoter regions of several genes with ability to influence cancer susceptibility. the aim of this study was to analyses association between mmp2 and mmp9 promoter polymorphisms and head and neck squamous cell carcinoma ...

2014
Osama AA Ahmed Tarek A Ahmed Ashraf B Abdel-Naim Alaa Khedr Zainy M Banjar Mohsen I Afouna

Purpose: To utilize hydroxybutyl-β-cyclodextrin (HB-β-CD) and polyvinyl pyrrolidone (PVP) for the enhancement of the transdermal delivery of glimepiride (GMD). Methods: Matrix-type transdermal patches containing GMD, drug coprecipitate or its inclusion complex were prepared using different gelling agents, viz, hydroxypropyl methylcellulose (HPMC), hydroxypropyl cellulose (HPC), carbopol and chi...

2012
Joseph Shelton Melissa Venable Sabra Neal Joshua Adams Aniesha Alford Gerry V. Dozier

In this paper, we present a two-stage process for developing feature extractors (FEs) for facial recognition. In this process, a genetic algorithm is used to evolve a number of local binary patterns (LBP) based FEs with each FE consisting of a number of (possibly) overlapping patches from which features are extracted from an image. These FEs are then overlaid to form what is referred to as a hy...

Journal: :Landscape Ecology 2021

Abstract Context Amazonian white-sand ecosystems ( campinas ) are open vegetation patches which form a natural island-like system in matrix of tropical rainforest. Due to clear distinction from the surrounding matrix, spatial characteristics campina may affect genetic diversity and composition their specialized organisms, such as small endemic passerine Elaenia ruficeps . Objectives To estimate...

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