نتایج جستجو برای: neural membrane

تعداد نتایج: 685254  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه رازی - پژوهشکده فنی و مهندسی 1388

asymmetric polyethersulfone (pes) microfiltration flat sheet membranes were composed by the phase inversion method (pim) and were used as supports. composite membranes were fabricated by coating silicone rubber as selective layer. effect of different concentrations of pes and pdms and different solvent such as nmp, dmf and dms effects as pes solvents and support thickness and different coagulat...

Background: Recently, ultrasonic neuromodulation research has been an important and interesting issue. Ultrasonic neuromodulation is possible by the use of low-intensity transcranial focused ultrasound (tFUS) to stimulate or inhibit the neural structures. The primary capability of this method is the improvement in the treatment progress of certain neurological and psychiatric disorders noninvas...

Journal: :مجله علوم اعصاب شفای خاتم 0
shima tavakol a. department of medical nanotechnology, school of advanced technologies in medicine, tehran university of medical sciences, tehran, iran. b. student’s scientific research center, tehran university of medical sciences, tehran, iran. hadi aligholi a. shefa neuroscience research center, khatam alanbia hospital, tehran, iran. b. department of neurosciences, school of advanced technologies in medicine, tehran university of medical sciences, tehran, iran. ali gorji a. shefa neuroscience research center, khatam alanbia hospital, tehran, iran. b. institute for physiologie i, westfälischewilhelms-universitätmünster, germany. arezou eshaghabadi shefa neuroscience research center, khatam alanbia hospital, tehran, iran. mehdi rezayat a. department of medical nanotechnology, school of advanced technologies in medicine, tehran university of medical sciences, tehran, iran. b. department of toxicology and pharmacology, school of pharmacy, pharmaceutical sciences branch, islamic azad university (iaups), tehran, iran. c. department of pharmacology, school of medicine, tehran university of medical sciences, tehran, iran. jafar ai a. department of tissue engineering, school of advanced technologies in medicine, tehran university of medical sciences, tehran, iran. b. brain and spinal injury research center, imam hospital, tehran university of medical sciences, tehran, iran.

although spinal cord injury (sci) is one of the most common injuries after a road accident, there is no definite treatment for it. in this regard, nanotechnology has focused to retrieve damaged tissue function by designing of a biomaterial as a mimicking extracellular matrix to reduce inflammation, scar and lactate dehydrogenase, to fill the cyst and improve the graft integration, cell prolifer...

Hossein Mohebbi, Malihe Hassan Nia, Nafise Bahrami, Zahra Ghane,

Zinc is a substance that regulates neural excitability by binding whit sodium channel and potassium channel. The efficiency of free zinc ion, make down the neural survival rate, reduced the peak amplitude of Na+ and make depolarization Na channel, increased the peak amplitude of transition outward k+ currents and delayed rectifier. Also it is an effective blocker of one subtype of tetrodoxine (...

Journal: :International Journal of Molecular Sciences 2010

Journal: :progress in biological sciences 2013
sogolie kouhzaei saeid hadi alijanvand hamid mobasheri

polyethylene glycol (peg) is a hydrophilic polymer, known to be capable to fuse numerous single cells in vitro, to join the membranes of adjacent neurons and giant invertebrate axons, and to seal damaged neural membranes. the molecular mechanism of the action of peg is still unknown. it is believed that peg dehydrates membranes and enables their structural components to resolve and rearrange in...

Hamid Mobasheri, Saeid Hadi Alijanvand Sogolie Kouhzaei

Polyethylene glycol (PEG) is a hydrophilic polymer, known to be capable to fuse numerous single cells in vitro, to join the membranes of adjacent neurons and giant invertebrate axons, and to seal damaged neural membranes. The molecular mechanism of the action of PEG is still unknown. It is believed that PEG dehydrates membranes and enables their structural components to resolve and rearrange in...

Journal: :Processes 2021

As third-generation neural network models, spiking P systems (SNP) have distributed parallel computing capabilities with good performance. In recent years, artificial networks received widespread attention due to their powerful information processing capabilities, which is an effective combination of a class biological and mathematical models. However, SNP some shortcomings in numerical calcula...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علم و صنعت ایران - دانشکده مهندسی شیمی 1386

در این تحقیق مطالعات تجربی رفتار تراوایی گازهای اسیدی در حالت مخلوط با گاز طبیعی در غشاهای پلیمری انجام گرفته است. در این تحقیق روشهای تعیین پارامترهای تراوایی گازها و فعالیت های سایر محققان دراین زمینه شرح داده شده و همچنین عملکرد غشایی از جنس پلی استریورتان اوره برای کاربرد جذف گازهای اسیدی از متان به صورت تجربی مورد بررسی قرار گرفته است. غشاء های مورد مطالعه محصول شرکت metax روسیه می باشد. آ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم انسانی 1389

rivers and runoff have always been of interest to human beings. in order to make use of the proper water resources, human societies, industrial and agricultural centers, etc. have usually been established near rivers. as the time goes on, these societies developed, and therefore water resources were extracted more and more. consequently, conditions of water quality of the rivers experienced rap...

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