نتایج جستجو برای: two membrane concept
تعداد نتایج: 2961061 فیلتر نتایج به سال:
We describe the clinical and pathologic observation of four patients with Porokeratosis of Mibelli. Allof them were women. They had four different forms of disease: Plaque type, functate form, Linear form and superficial disseminated form. In histologic features we observed a new change in basement membrane of epidermis in two patients. This change composed of Liquefaction degeneration of basal...
A mathematical model considering mass and momentum transfer was developed for simulation of ethanol dewatering via pervaporation process. The process involves removal of water from a water/ethanol liquid mixture using a dense polymeric membrane. The model domain was divided into two compartments including feed and membrane. For a description of water transport in ...
Introduction: Scaffold has therole of the extracellular matrix in regulating cell survival and it is an important component in tissue engineering techniques. One of the scaffolds that was used in this field, was PLLA (poly L-lactic acid) which was usually prepared by electro spinning method. The purpose of this study was to evaluate the biocompatibility of nano-porous PLLA membrane on prolifera...
Introduction: Nursing educators should use teaching methods that promote deep learning and retention. The aim of this study was to compare the effects of lecture and concept mapping approaches on the nursing students’ learning and knowledge retention in cardiovascular nursing course. Methods: In a quasi- experimental study on two groups with pre test -post test design, 66 fifth-semester nursin...
The permeability of a membrane to solute penetrants is well defined on the linear response level simply as ratio penetrants’ flux and concentration gradient at boundary layers. However, nonlinearities emerge in flux–force relation j(f) for large driving forces f, which definition becomes ambiguous. Here, we study nonequilibrium permeation orchestrated by generic force using penetrant- monomer-r...
Several red cell membrane properties and activities of membrane-bound enzymes were investigated in blood samples of patients with Huntington's disease. (Na(+)+K(+)) ATPase activity and cell deformability appeared to be normal, in contradiction to preceding reports from other laboratories. With other techniques sensitive to relatively small changes in membrane structure, no abnormalities were fo...
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