نتایج جستجو برای: activation
تعداد نتایج: 427476 فیلتر نتایج به سال:
مقدمه: سلول های t تنظیمی cd4 + foxp3 + دارای نقش عمده در تعدیل پاسخ های ایمنی و به علاوه، ایجاد تحمل ایمنی در جلوگیری از بروز بیماری های خود ایمن می باشند. همچون بسیاری از بیماری های خود ایمن دیگر، پیشنهاد می شود که مولتیپل اسکلروزیس (ms یا multiple sclerosis) نیز به عنوان یک بیماری سیستم عصبی مرکزی، با نقص عملکردی یا تعدادی از این قبیل سلول ها همراه باشد. ژن 3 فعال سازی لنفوسیت (lag-3 یا lymph...
adverse effects following immunization to vaccines (aefi) are considered extremely rare events, the occurrence of which could gain a major role in optimizing allergy diagnosis by cellular tests. the urgent need to eradicate infectious diseases from population, is the main goal of vaccination campaign, therefore its successful outcome should be almost undisputable. basophil activation test ...
the application of conductive coatings on ferritic stainless steel can decrease electrical conductivity. theaim of this research was to investigate the electrical conductivity of cobalt coated aisi 430 ferritic stainlesssteel by pack cementation technique. coated coupons were analyzed using scanning electron microscopy(sem). electrical conductivity of the coated substrates was measured as a fun...
the objective of this study was to investigate the drying kinetics of oyster mushroom, pleurotus ostreatus mushrooms were dried using a cabinet-type convective dryer. air temperatures of 50, 60 and 70 oc were used for the drying experiments. the experimental drying data were fitted to different theoretical models to predict the drying kinetics. nonlinear regression analysis was performed to rel...
objective: development of high producing mammalian cell lines is a major bottleneck in manufacturing of recombinant therapeutic proteins. this study examines the effect of using the matrix attachment region from the human interferon beta gene in combination with promoter activation strategy with e1a 13s protein on human tissue plasminogen activator (t-pa) expression in chinese hamster ovary (ch...
Background: Muscle fatigue can change the muscle activation pattern during running and causes some disorders in running biomechanics. The aim of present study was to determine the effect of muscle fatigue on electromyographic activation pattern and co-contractions of lower extremity muscles during running. Methods: Fourteen males (age: 23.76±2.14 years, weight: 78.45±2.54 kg, hei...
background: microrna-155 (mir-155) is upregulated during t cell activation, but the exact mechanisms by which it influences cd4+ t cell activation remain unclear. objective: to examine whether the b and t lymphocyte attenuator (btla) is a target of mir-155 during naïve cd4+ t cell activation. methods: firefly luciferase reporter plasmids pezx-mt01-wild-type-btla and pezx-mt01-mutant-btla were c...
In this work, the effects of temperature, acid concentration, and mechanical activation on dissolution of ilmenite were studied using the statistical design of experiment technique. Mechanical activation was carried out using a planetary ball mill in dry mode, and the resulting structural changes were characterized by the particle size analysis, specific surface area measurements, and X-ray dif...
Objective: The purpose of this study is to investigate the role of early maladaptive schemas, behavioral activation/inhibition system and cognitive emotion regulation strategies predicting social anxiety in students with learning disabilities. Method: The research method was descriptive and correlational. A sample of 232 students was selected using available sampling method. The research instru...
Montmorillonite is the main bentonite forming mineral which has special characteristics such as suspension, swelling and colloidal properties. It can absorb water to become larger in volume. Good absorbents are extensively used in industry eithersimply dried or after chemical activation. The chiefconsumer of these clays is the oil refinering industry whichuses them to purify fractionation pr...
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