نتایج جستجو برای: neural membrane
تعداد نتایج: 685254 فیلتر نتایج به سال:
In welded tubular joints, when the fatigue crack depth is less than 20% of chord wall thickness, the crack growing process is highly affected by weld geometry. Hence, T-butt solution and weld magnification factor (Mk) are applicable tools for evaluating the crack growth rate in this domain. In this research, the capability of Artificial Neural Network (ANN) for estimating the Mk of weld toe c...
Clostridium botulinum D (strain South Africa) produces ADP-ribosyltransferase which modifies eukaryotic 24-26-kDa proteins. ADP-ribosyltransferase activity was associated with a neurotoxin of 150 kDa (Dsa toxin) as confirmed by the elution profile of Dsa toxin from high performance anion-exchange column. The 24-kDa substrate of Dsa toxin-catalyzed ADP-ribosylation was detected in several tissue...
With the advent of rigorous membrane research and development in middle 20th century, more wastewater plants started incorporating Membrane BioReactors (MBR) their design. However, being a system, MBR is subject to fouling which may lead maintenance cleaning costs. In this paper, monitoring prediction tool has been designed MATLAB\Simulink. The model takes states related fouling, calculates tot...
This paper addresses the application of neural network research to a theory of autonomous systems. Neural networks , while enjoying considerable success in autonomous systems applications, have failed to provide a rm theoretical underpinning to neural systems embedded in their natural ecological context. This paper proposes a stochastic formulation of such an embedding. A neural system derived ...
This paper addresses the application of neural network research to a theory of autonomous systems Neural net works while enjoying considerable success in autonomous systems applications have failed to provide a rm the oretical underpinning to neural systems embedded in their natural ecological context This paper proposes a stochastic formulation of such an embedding A neural system derived from...
فاکتور رشد عصبی یا ngf اولین فاکتور شناخته شده از خانواده نوروتروفین می باشد . از اثرات اولیه مشاهده شده این فاکتور رشد و تکثیر و تمایز نورونهای مشتق شده از تاج عصبی neural crest و همچنین ازدیاد نورونهای سمپاتیکی در جنین موش می باشد. مطالعات نشان داده است که ngf علاوه بر تنظیم فعالیت و عملکرد نورونها ، دارای قدرت تداخل با سیستم ایمنی نیز می باشد. بدین ترتیب اختلال در میزان فعالیت و ...
Traumatic brain injury (TBI) results from cell dysfunction or death following supra-threshold physical loading. Neural plasmalemma compromise has been observed following traumatic neural insults; however, the biomechanical thresholds and time-course of such disruptions remain poorly understood. In order to investigate trauma-induced membrane disruptions, we induced dynamic strain fields (0.50 s...
An intracellular (ATP + Mg2+)-dependent Ca2+ pumping mechanism has been identified and characterized within the cultured clonal neuroblastoma cell line N1E-115. Using cell suspensions treated with 0.005% saponin which selectively permeabilizes the plasma membrane in 95-98% of the cells, it was possible to show clearly that the intracellular Ca2+ pump mechanism is of non-plasma membrane origin a...
Cerebrospinal fluid (CSF) is routinely used for diagnosing and monitoring neurological diseases. The CSF proteins used so far for diagnostic purposes (except for those associated with whole cells) are soluble. Here, we show that human CSF contains specific membrane particles that carry prominin-1/CD133, a neural stem cell marker implicated in brain tumors, notably glioblastoma. Differential and...
MOTIVATION Prediction methods are of great importance for membrane proteins as experimental information is harder to obtain than for globular proteins. As more membrane protein structures are solved it is clear that topology information only provides a simplified picture of a membrane protein. Here, we describe a novel challenge for the prediction of alpha-helical membrane proteins: to predict ...
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