نتایج جستجو برای: brain and neural system development
تعداد نتایج: 17420861 فیلتر نتایج به سال:
awareness of the level of river flow and its fluctuations at different times is one of the significant factor to achieve sustainable development for water resource issues. therefore, the present study two hybrid models, wavelet- adaptive neural fuzzy interference system (wanfis) and wavelet- artificial neural network (wann) are used for flow prediction of gamasyab river (nahavand, hamedan, iran...
introruction khawf in(iran)-herat and mazaresharif and shirkhan bandar in (afghanistan)-dushanbe in (tajikistan)_(kirgizstan)-kashghar in(china) project railway network is under construction that it is as a significant corridor for revitalizing silk road corridor in the region .at the present there are three different gauge in the region central asia with 1,520 mm gauge and turkey-islamic repu...
abstract because of the many geopolitical, geo economical and geo strategically potentials and communicational capabilities of eco region, members can expand the convergence and the integration in base of this organization that have important impact on members development and expanding peace in international and regional level. based on quality analyzing of library findings and experts interv...
in this thesis,spin dependend transport and electron transport through of ng/sg(graphene/ superconductor graphen) are studied in the junction of ng/fgt/sg. due to andreev reflection conductance increases in the presence of superconductor graphene.also, by applying a voltage gate on a superconductor, fermi level shifts and the conductance is independent of ferromagnatic substrate. also, the cond...
selective desulfurization of thiocarbonyls to carbonyls thioacetalization of aldehydes and ketones a useful reagent system for the dethioacetalization reactions
The classical paradigm of the neural brain as the seat of human natural intelligence is too restrictive. This paper defends the idea that the neural ectoderm is the actual brain, based on the development of the human embryo. Indeed, the neural ectoderm includes the neural crest, given by pigment cells in the skin and ganglia of the autonomic nervous system, and the neural tube, given by the bra...
Purpose: Isolation, induction of neural and glial differentiation and evaluating the expression of Nucleostemin, ZFX, Hoxb-4, Sox-9 & Bmi-1 self renewal genes in adult mouse neural stem cells. Materials and Methods: Breifly, for isolation of neural stem cells, frontal part of adult mouse brain was minced in PBS and digested by enzyme solution, containing hyaloronidase and trypsin. Isolated cel...
the cannabinoidergic system acquired a reputation as the most abundant g-protein coupled receptor in the cns that acts as retrograde modulator of neurotransmitter release. recently, endocannabinoids (ecbs) have been highlighted as neurodevelopmental signaling cues that exert a regulatory role in brain development. the interruption in ecb system elements (including receptors and enzymes of synth...
recent advances in brain and cognitive science studies have revolutionized concepts in neural dynamics, regulating mechanisms, coding systems and information processing networks which govern our function and behavior. hidden aspects of neurological and psychiatric diseases are being understood and hopes for their treatment are emerging. although the two comprehensive mega-projects on brain mapp...
a phase-locked loop (pll) based frequency synthesizer is an important circuit that is used in many applications, especially in communication systems such as ethernet receivers, disk drive read/write channels, digital mobile receivers, high-speed memory interfaces, system clock recovery and wireless communication system. other than requiring good signal purity such as low phase noise and low spu...
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