نتایج جستجو برای: weak tie

تعداد نتایج: 147920  

Journal: :Circulation 1999
T A Partanen T Makinen J Arola T Suda H A Weich K Alitalo

BACKGROUND Endothelial receptor tyrosine kinases include 3 members of the vascular endothelial growth factor receptor (VEGFR) family and 2 members of the angiopoietin receptor (Tie) family. In addition, the VEGF(165) isoform binds to neuropilin-1 (NP-1), a receptor for collapsins/semaphorins. The importance of these receptors for vasculogenesis and angiogenesis has been shown in gene-targeted m...

2014
Nicole C. Krämer Leonie Rösner Sabrina C. Eimler Stephan Winter Nicole Muscanell

Theoretical approaches as well as empirical results in the area of social capital accumulation on social networking sites suggest that weak ties/bridging versus strong ties/bonding social capital should be distinguished and that while bonding social capital is connected to emotional support, bridging social capital entails the provision of information. Additionally, recent studies imply the not...

Journal: :The Journal of clinical endocrinology and metabolism 2001
J D Ramsden H C Cocks M Shams S Nijjar J C Watkinson M C Sheppard A Ahmed M C Eggo

Angiogenesis is coordinated with follicular cell growth in goitrogenesis. The angiopoietins, Ang-1 and Ang-2, are angiogenic growth factors acting through Tie-2, a tyrosine kinase receptor. We have examined the expression and regulation of the angiopoietins and Tie-2 in human and rat thyroids. In human goiters there was increased Tie-2 immunostaining, compared with that in normal thyroids, on b...

2007
Greg Yezersky

The odds for success of a future CAI system (as well as the present CAI movement) are completely dependent on the quality of an underlying theory of innovation and the effectiveness of its tools, processes and models. This paper establishes a set of requirements for such a theory, evaluates existing approaches, methodologies and theories (including TRIZ), and presents an overview of the General...

Journal: :Social Forces 1984

Journal: :Anthropology of food 2003

2016
Kai-Dun Tang Boris M. Holzapfel Ji Liu Terence Kin-Wah Lee Stephanie Ma Lidija Jovanovic Jiyuan An Pamela J. Russell Judith A. Clements Dietmar W. Hutmacher Ming-Tat Ling

Ample evidence supports that prostate tumor metastasis originates from a rare population of cancer cells, known as cancer stem cells (CSCs). Unfortunately, little is known about the identity of these cells, making it difficult to target the metastatic prostate tumor. Here, for the first time, we report the identification of a rare population of prostate cancer cells that express the Tie-2 prote...

Journal: :Canadian Medical Association Journal 2012

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