نتایج جستجو برای: reho methods activation map

تعداد نتایج: 2414106  

Journal: :Cell growth & differentiation : the molecular biology journal of the American Association for Cancer Research 2000
C Bondzi J Litz P Dent G W Krystal

Small cell lung cancer (SCLC) is characterized by multiple genetic alterations that include inactivation of the retinoblastoma protein (Rb), the establishment of several autocrine loops including that induced by coexpression of stem cell factor (SCF) and Kit, and the ectopic expression and activation of Src family kinases. Previous studies have shown that Lck associates with, and becomes activa...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه اصفهان 1389

implicit and unobserved errors and vulnerabilities issues usually arise in cryptographic protocols and especially in authentication protocols. this may enable an attacker to make serious damages to the desired system, such as having the access to or changing secret documents, interfering in bank transactions, having access to users’ accounts, or may be having the control all over the syste...

Journal: :Circulation 2011
Mustafa Zakkar Le Anh Luong Hera Chaudhury Oeyvind Ruud Prakash P Punjabi Jon R Anderson John W Mullholand Anne T Clements Rob Krams Nicholas Foin Thanos Athanasiou Edward L S Leen Justin C Mason Dorian O Haskard Paul C Evans

BACKGROUND Vein grafting in coronary artery surgery is complicated by a high restenosis rate resulting from the development of vascular inflammation, intimal hyperplasia, and accelerated atherosclerosis. In contrast, arterial grafts are relatively resistant to these processes. Vascular inflammation is regulated by signaling intermediaries, including p38 mitogen-activated protein (MAP) kinase, t...

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

یکی از مسائلی که در سیستم sar مطرح می شود مسأله نویز speckle می باشد. منبع تولید نویز speckle فاز نسبی پراکنده گرهای مختلف در یک سلول رادار می باشد که نوسانات شدیدی در سیگنال دریافتی به وجود آورده و تصویر حاصل را دانه دانه می نماید. این نویز تفسیر تصاویر را مشکل و اطلاعات زیادی را مخفی می کند و لذا کاهش آن یکی از ملزومات در پردازش سیگنال sar است. الگوریتمهای متعددی جهت کاهش نویز speckle در نوا...

2005
N. Xu Y. Li J. M. Fitzpatrick B. M. Dawant V. L. Morgan D. R. Pickens

Figure 2. Comparision of activation maps with and without susceptibility artifacts from SPM2. (a) true activation map. (b) activation map detected from phantoms without susceptibility artifacts. (c) activation map detected from phantoms with susceptiblity artifacts. More false activations are obsevered in (c), and the detected activation regions are spatially shifted relative to the true map (a...

Journal: :Investigative ophthalmology & visual science 2004
Jian Zhou A Sue Menko

PURPOSE The goals of this study were to determine whether MAP kinase signaling pathways play a role in the formation of lens cataracts and to examine the potential signaling relationship between Src and MAP kinases in signaling the induction of lens opacities. METHODS Embryonic day (E)10 chick lenses were cultured in Medium 199 containing 10% fetal bovine serum. The activation state of Src ki...

Journal: :Cardiovascular research 1999
R Cospedal H Abedi I Zachary

OBJECTIVE Phosphatidylinositol 3'-kinase (PI3-kinase) is implicated in cell migration and focal adhesion kinase (FAK) phosphorylation. In contrast, it has been proposed that mitogen-activated protein (MAP) kinases are essential for proliferation but may be dissociated from chemotactic signalling. We investigated the roles of PI3-kinase and p42/p44 MAP kinases in cell migration and FAK tyrosine ...

Journal: :The Biochemical journal 1996
A Graham A McLees K Malarkey G W Gould R Plevin

We have investigated the mechanisms that bring about the termination of mitogen-activated protein kinase (MAP kinase) activation in response to UTP in EAhy 926 endothelial cells. UTP-stimulated MAP kinase activity was transient, returning to basal values by 60 min. At this time MAP kinase activation was desensitized; re-application of UTP did not further activate MAP kinase, full re-activation ...

2006
Antonija Jurak Begonja Jörg Geiger Natalia Rukoyatkina Steffen Rauchfuss Stepan Gambaryan Ulrich Walter

p38 MAP kinase in human platelets is activated by platelet agonists including thrombin, thromboxane A2 (TxA2), ADP, and others. However, both upstream mechanisms of p38 MAP kinase activation, and their downstream sequelae, are presently controversial and essentially unclear. Certain studies report sequential activation of cGMP-dependent protein kinase (PKG) and p38/ERK pathways by platelet agon...

Journal: :Blood 2007
Antonija Jurak Begonja Jörg Geiger Natalia Rukoyatkina Steffen Rauchfuss Stepan Gambaryan Ulrich Walter

p38 MAP kinase in human platelets is activated by platelet agonists including thrombin, thromboxane A2 (TxA2), ADP, and others. However, both upstream mechanisms of p38 MAP kinase activation, and their downstream sequelae, are presently controversial and essentially unclear. Certain studies report sequential activation of cGMP-dependent protein kinase (PKG) and p38/ERK pathways by platelet agon...

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