منابع مشابه
Simulation of a New Process Design to Fabricate a Rectangular Twist Waveguide Using Extrusion and a Twist Die
The aim of the present study is to determine the feasibility of making a rectangular twist waveguide used to rotate electromagnetic waves. For this purpose, the process of fabricating an aluminum rectangular twist waveguide was simulated by making use of finite element method and Deform software. The optimum length and angle of the twist die for manufacturing a twist waveguide with inner cross ...
متن کاملApoptosis: giving phosphatidylserine recognition an assist – with a twist
Clearance of dying cells is critical to tissue homeostasis in the multicellular organism. In recent years, accumulating data have suggested that removal of apoptotic cells is a two-stage process. First, cellular corpses are neatly packaged for recognition during the process of apoptosis. Their uptake by phagocytes (either macrophages or tissue cells) prevents the eventual release of potent proi...
متن کاملTwist functions in mouse development.
The remarkable similarity in the profile of genetic activity and the frequent association of developmental defects of limb and craniofacial structures in mouse mutant and hereditary disorders point to the possibility that the development of the head and limb involves common morphogenetic mechanisms. Our recent studies on the impact of the loss of Twist function has highlighted the essential rol...
متن کاملTWIST 1 ( twist homolog 1 ( Drosophila ) )
The 20.9 kDa protein encoded by TWIST1 gene is a highly conserved transcription factor that belongs to the family of basic helix-loop-helix (bHLH) proteins. In vertebrates, it is involved in embryonic development through the regulation of epithelial-mesenchymal transitions (EMT) during neural crest migration, also it regulates mesoderm determination, myogenesis, and morphogenesis (Hebrok et al....
متن کاملA twist of insight - the role of Twist-family bHLH factors in development.
Members of the Twist-family of bHLH proteins play a pivotal role in a number of essential developmental programs. Twist-family bHLH proteins function by dimerizing with other bHLH members and binding to cis- regulatory elements, called E-boxes. While Twist-family members may simply exhibit a preference in terms of high-affinity binding partners, a complex, multilevel cascade of regulation creat...
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ژورنال
عنوان ژورنال: Science
سال: 2008
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.322.5902.653b