نتایج جستجو برای: الگوی ecm

تعداد نتایج: 54612  

Journal: :American journal of physiology. Cell physiology 2007
Jane Sottile Feng Shi Inna Rublyevska Hou-Yu Chiang Joseph Lust Jennifer Chandler

Communication between cells and the extracellular matrix (ECM) is critical for regulation of cell growth, survival, migration, and differentiation. Remodeling of the ECM can occur under normal physiological conditions, as a result of tissue injury, and in certain pathological conditions. ECM remodeling leads to alterations in ECM composition and organization that can alter many aspects of cell ...

2017
Vahid Akbarinejad Parviz Tajik Mansoureh Movahedin Reza Youssefi

Testosterone is believed to play a significant role in spermatogenesis, but its contribution to the process of spermatogenesis is not completely understood. Given that extracellular matrix (ECM) facilitates differentiation of spermatogonial stem cells (SSCs) during culture, the present study was conducted to elucidate whether testosterone contribute to the permissive effect of ECM on SSCs diffe...

Journal: :Decision Support Systems 2006
Se-Joon Hong James Y. L. Thong Kar Yan Tam

This study examines the utility of three prospective models for understanding the continued IT usage behavior. The three models include: Expectation-Confirmation Model in IT Domain (ECM-IT), Technology Acceptance Model (TAM), and a hybrid model integrating TAM and ECM-IT (extended ECM-IT). Based on a survey of 1826 mobile Internet users, the LISREL analysis shows that all three models meet the ...

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

از آنجا که اثرات ناشی از تغییر سیاست پولی به صورت آنی و فوری بر اقتصاد ظاهر نمی شود بلکه در طول چند دوره این اثرات به اقتصاد منتقل می شود، لذا هدف این رساله ارزیابی میزان و دوره زمانی اثرگذاری سیاست پولی بر رشد اقتصادی ایران است. بدین منظور از مدل پولی سنت لویس و همچنین از داده های فصلی طی دوره زمانی 1386-1369 استفاده شده است. به منظور برآورد اثر بلندمدت سیاست پولی بر رشد اقتصادی از الگوی پویای...

2015
Andras Czirok Brenda J. Rongish Charles D. Little

The extracellular matrix (ECM) is an inherently dynamic structure during development. Large-scale tissue movements sweep the ECM to distant positions during early embryogenesis; furthermore, the previously assembled ECM filaments are extensively reused during later organogenesis. Thus, some organs, such as the heart, inherit previously assembled ECM filaments. This review focuses on the macro-a...

Journal: :Complex & Intelligent Systems 2022

Abstract Electronic countermeasure (ECM) has become one of the most significant factors in modern warfare, course combat, electronic jamming allocation tasks need to be flexibly adjusted with change combat stage, which puts forward higher requirements for modeling and solution method this kind problems. To solve ECM dynamic weapon target assignment (ECM-DWTA) problem, a hybrid multi-target bi-l...

Journal: :Science 2009
Richard O Hynes

The extracellular matrix (ECM) and ECM proteins are important in phenomena as diverse as developmental patterning, stem cell niches, cancer, and genetic diseases. The ECM has many effects beyond providing structural support. ECM proteins typically include multiple, independently folded domains whose sequences and arrangement are highly conserved. Some of these domains bind adhesion receptors su...

2015
Chawapun Suttinont Yasumasa Mashimo Masayasu Mie Eiry Kobatake

Delivery of growth factors to target cells is an important subject in tissue engineering. Towards that end, we have developed a growth factor-tethered extracellular matrix (ECM). Here, basic fibroblast growth factor (bFGF) was tethered to extracellular matrix noncovalently. The designed ECM was comprised of 12 repeats of the APGVGV peptide motif derived from elastin as a stable structural unit ...

Journal: :Journal of bacteriology 2007
Patrick D Curtis James Atwood Ron Orlando Lawrence J Shimkets

Fruiting body formation of Myxococcus xanthus, like biofilm formation of many other organisms, involves the production of an extracellular matrix (ECM). While the polysaccharide component has been studied, the protein component has been largely unexplored. Proteins associated with the ECM were solubilized from purified ECM by boiling with sodium dodecyl sulfate and were identified by liquid chr...

فتح‌اله تاری هادی اسماعیل‌پور مقدم وحید دهباشی,

تأثیر نرخ ارز در تراز تجاری یکی از موضوع‌های پایه‌ای و درعین‌حال بحث‌برانگیز در حوزة اقتصاد بین‌الملل است؛ به‌طوری‌که تغییرات نرخ ارز موجب بروز آثار متفاوتی در حجم تجارت یک کشور در کوتاه‌مدت و بلندمدت می‌‌شود. اثرهای متفاوت نرخ ارز در کوتاه‌مدت و بلندمدت می‌تواند مسیر زمانی تغییر در حساب جاری را به‌صورت منحنی J شکل دهد. در این مقاله، روابط تجاری ایران با سایر نقاط جهان با رویکرد تراز تجاری کل ب...

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