نتایج جستجو برای: spreading

تعداد نتایج: 32825  

صادق زاده , بهناز, شهابی , پرویز , صدیقی الوندی, مینا , غم‌خواری‌نژاد , غزاله , قادری پاکدل , فیروز ,

    Background & Aims : Spreading depression is a pathophysiological phenomenon that is initiated by a self-propagating depolarization wave with a short-term excitability and is followed immediately by an inhibitory phase and then continues with a long-term secondary excitability. Spreading depression has a critical role in many disorders such as migraine and seizures . The purpose of this stud...

Journal: :مجله علوم اعصاب شفای خاتم 0
ahmad ali lotfinia shefa neuroscience research, khatam alanbia hospital, tehran, iran. milad ahmadi shefa neuroscience research, khatam alanbia hospital, tehran, iran. babak khodaie shefa neuroscience research, khatam alanbia hospital, tehran, iran. mahmoud lotfinia shefa neuroscience research, khatam alanbia hospital, tehran, iran. ali gorji shefa neuroscience research, khatam alanbia hospital, tehran, iran.

cortical spreading depression (csd) has been suggested to underlie some neurological disorders such as migraine. despite the intensity with which many investigators have studied sd in the brain, only a few studies have aimed to identify sd in the spinal cord. here we described the main characteristic features of sd in the spinal cord induced by different methods including various spinal cord in...

Journal: :iranian journal of child neurology 0
hadi kazemi 1. department of pediatric, shahed university, tehran, iran erwin josef speckmann 3. epilepsy research center, westfälische wilhelms-universität münster, germany ali gorji 2. shefa neuroscience research center, tehran, iran 3. epilepsy research center, westfälische wilhelms-universität münster, germany 4. institut für physiologie i, westfälische wilhelms-universität münster, germany 5. klinik und poliklinik für neurochirurgie, westfälische wilhelms-universität münster, germany 6. department ofneurology, westfälische wilhelms-universität münster, germany

how to cite this article: kazemi h, speckmann ej, gorji a. familial hemiplegic migraine and spreading depression. iran j child neurol. 2014 summer;8(3): 6-11.   abstract objective familial hemiplegic migraine (fhm) is an autosomal dominantly inherited subtype of migraine with aura, characterized by transient neurological signs and symptoms. typical hemiplegic migraine attacks start in the first...

Journal: :basic and clinical neuroscience 0
anna maria haarmann institute of neurophysiology, westfälische wilhelms-universität münster, germany. maryam jafarian shefa neuroscience research center, tehran, iran. fariba karimzadeh school of advanced medical technology, tehran university of medical sciences, tehran, iran. ali gorji epilepsy research center, westfälische wilhelms-universität münster, germany.

introduction: spreading depression (sd) is a propagating wave of depolarization followed by depression of the neuroglial activities and can modulate extracellular dopamine concentrations in the neocortex. it has been shown that the dopaminergic system plays a role in migraine. sd has been suggested as a critical phenomenon in the pathophysiology of migraine. the aim of this study was to investi...

     Study of sedimentation trend in artificial recharge projects and flood spreading on the aquifer (Aquifer management) can be effective in designing structures and network management. Literature review shows that most studies in the flood spreading area shave been conducted in networks that have a low life span or low flood numbers. Since 1997, the flood spreading station on the Jajarm aquif...

Journal: :Journal of immunology 2003
Richard E Jones Dennis Bourdette Nicole Moes Arthur Vandenbark Alex Zamora Halina Offner

The sequential emergence of specific T lymphocyte-mediated immune reactivity directed against multiple distinct myelin epitopes (epitope spreading) has been associated with clinical relapses in experimental autoimmune encephalomyelitis (EAE), an animal model of multiple sclerosis (MS). Based on this association, an appealing and plausible model for immune-mediated progression of the advancing c...

2007
Nathan J. Downey Joann M. Stock Robert W. Clayton Steven C. Cande

[1] The Osbourn Trough is a fossil spreading center that rifted apart the Manihiki and Hikurangi Plateaus during Cretaceous time. Previous models of the Osbourn spreading center are based on data collected near the trough axis, and therefore only constrain the history of the Osbourn spreading center during the last few Ma of spreading. Our data set includes multibeam data collected northward to...

Flood spreading is among preventing method from damage of deluge, especially perishing of water and soil in latrine basins of arid and semiarid regions. Accumulation of sediments on the flood spreads regions lead to changes in soil fertility, revival and support of plant covering and controlling of desertification and change in physicochemical properties of soil in these regions. In order to me...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند 1388

a significant problem in multicarrier communication systems is the necessity to reduce the value of papr (peak-to-average power ratio) of transmitting signal. in this thesis we study the effect of the system parameters such as coding and modulation types on papr and ultimate ber in a mc-cdma system. in this study we consider fading channel as well as the nonlinearity of transmitter’s amplifier ...

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