نتایج جستجو برای: neural induction

تعداد نتایج: 496021  

Condition monitoring and protection methods based on the analysis of the machine's current are widely used according to non-invasive characteristics of current transformers. It should be noted that, these sensors are installed by default in the machine control center. On the other hand, condition monitoring based on mathematical methods has been proposed in literature. However, they are model b...

2001
Alan B. Tickle

A recognized impediment to the more widespread utilisation of Artificial Neural Networks (ANNs) is the absence of a capability to explain, in a humancomprehensible form, either the process by which a trained ANN arrives at a specific decision/result or, in general, the totality of knowledge embedded therein. Recently there has been a proliferation of techniques aimed at redressing this situatio...

1998
Mark W. Craven Jude W. Shavlik

Neural networks have been successfully applied in a wide range of supervised and unsuper-vised learning applications. Neural-network methods are not commonly used for data-mining tasks, however, because they often produce incomprehensible models and require long training times. In this article, we describe neural-network learning algorithms that are able to produce comprehensible models, and th...

Journal: :Development 1998
K G Storey A Goriely C M Sargent J M Brown H D Burns H M Abud J K Heath

Signals that induce neural cell fate in amniote embryos emanate from a unique cell population found at the anterior end of the primitive streak. Cells in this region express a number of fibroblast growth factors (FGFs), a group of secreted proteins implicated in the induction and patterning of neural tissue in the amphibian embryo. Here we exploit the large size and accessibility of the early c...

Journal: :Development 2016
Carolin Schille Michaela Bayerlová Annalen Bleckmann Alexandra Schambony

The receptor tyrosine kinase Ror2 is a major Wnt receptor that activates β-catenin-independent signaling and plays a conserved role in the regulation of convergent extension movements and planar cell polarity in vertebrates. Mutations in the ROR2 gene cause recessive Robinow syndrome in humans, a short-limbed dwarfism associated with craniofacial malformations. Here, we show that Ror2 is requir...

Journal: :Development 2013
Christopher Hackley Erin Mulholland Gil Jung Kim Erin Newman-Smith William C Smith

A forward genetic screen in the ascidian Ciona intestinalis identified a mutant line (frimousse) with a profound disruption in neural plate development. In embryos with the frimousse mutation, the anteriormost neural plate cells, which are products of an FGF induction at the blastula and gastrula stages, initially express neural plate-specific genes but fail to maintain the induced state and ul...

2014
Mohamed Mahmoud Ismail

The area of multiphase variable-speed motor drives in general and multiphase induction Motor drives in particular have experienced a substantial growth since the beginning of this century. Research has been conducted worldwide and numerous interesting developments have been reported in the literature. An attempt is made to provide a detailed overview of the current state-ofthe-art in this area....

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...

Journal: :Development 1987
C R Kintner D A Melton

We have isolated Xenopus laevis N-CAM cDNA clones and used these to study the expression of N-CAM RNA during neural induction. The results show that the first marked increase in N-CAM RNA levels occurs during gastrulation when mesoderm comes in contact with ectoderm and induces neural development. In situ hybridization results show that the early expression of N-CAM RNA is localized to the neur...

ژورنال: دانشور پزشکی 2015
خرمگاه, مریم سادات, دلشاد, محمدرضا, صادقی زاده, مجید, طاهری, طاهر , طریحی, تقی, عباس زاده, حجت اله, کاظمی, هادی,

Background and Objective: One of the approaches for treatment of demylination diseases is cell therapy. Stem cells have been used as a source for generating oligodendrocyte. In a previous communication, the oligodendrocyte-like cells (OLCs) were generated from bone marrow stromal cells (BMSCs) using preinducers (dimethyl sulfoxide and retinoic acid) and induction protocol (PDGF, bFGF, heregulin...

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