scholarly journals The Dynamics of Radiation Driven Gap Closure Across Megagauss Fields on Z

2007 ◽  
Author(s):  
D.E. Bliss ◽  
M.E. Cuneo ◽  
B.M. Jones ◽  
K.W. Struve ◽  
W.A. Stygar ◽  
...  
Keyword(s):  
Gap Closure ◽  
Megagauss Fields

Faraday rotation in CdMnTe in megagauss fields

1979 ◽  
Vol 12 (24) ◽  
pp. L941-L943 ◽  
Author(s):  
P Byszewski ◽  
M Z Cieplak ◽  
M Romanis
Keyword(s):  
Faraday Rotation ◽  
Megagauss Fields

scholarly journals Higher-Order Active Contour Energies for Gap Closure

2007 ◽  
Vol 29 (1) ◽  
pp. 1-20 ◽  
Author(s):  
Marie Rochery ◽  
Ian H. Jermyn ◽  
Josiane Zerubia
Keyword(s):  
Active Contour ◽  
Higher Order ◽  
Gap Closure

Analysis of Pellet-to-Cladding Gap Closure for a Metallic Micro-cell Pellet under Normal Operating Conditions

2021 ◽  
pp. 153186
Author(s):  
Yang-Hyun Koo ◽  
Jae-Ho Yang ◽  
Dong-Seok Kim ◽  
Dong-Joo Kim ◽  
Chang-Hwan Shin ◽  
...  
Keyword(s):  
Operating Conditions ◽  
Normal Operating ◽  
Gap Closure ◽  
Cell Pellet

Explosive emission and gap closure from a relativistic electron beam diode

2013 ◽  
Author(s):  
J. E. Coleman ◽  
D. C. Moir ◽  
C. A. Ekdahl ◽  
J. B. Johnson ◽  
B. T. McCuistian ◽  
...  
Keyword(s):  
Electron Beam ◽  
Relativistic Electron ◽  
Relativistic Electron Beam ◽  
Explosive Emission ◽  
Gap Closure

scholarly journals Actin-ring segment switching drives nonadhesive gap closure

2020 ◽  
Vol 117 (52) ◽  
pp. 33263-33271
Author(s):  
Qiong Wei ◽  
Xuechen Shi ◽  
Tiankai Zhao ◽  
Pingqiang Cai ◽  
Tianwu Chen ◽  
...  
Keyword(s):  
Large Scale ◽  
Traction Force ◽  
Collective Cell Migration ◽  
Actin Ring ◽  
Purse String ◽  
Actin Cable ◽  
Gap Closure ◽  
Actin Fiber ◽  
Ring Segment ◽  
Cable Segment

Gap closure to eliminate physical discontinuities and restore tissue integrity is a fundamental process in normal development and repair of damaged tissues and organs. Here, we demonstrate a nonadhesive gap closure model in which collective cell migration, large-scale actin-network fusion, and purse-string contraction orchestrate to restore the gap. Proliferative pressure drives migrating cells to attach onto the gap front at which a pluricellular actin ring is already assembled. An actin-ring segment switching process then occurs by fusion of actin fibers from the newly attached cells into the actin cable and defusion from the previously lined cells, thereby narrowing the gap. Such actin-cable segment switching occurs favorably at high curvature edges of the gap, yielding size-dependent gap closure. Cellular force microscopies evidence that a persistent rise in the radial component of inward traction force signifies successful actin-cable segment switching. A kinetic model that integrates cell proliferation, actin fiber fusion, and purse-string contraction is formulated to quantitatively account for the gap-closure dynamics. Our data reveal a previously unexplored mechanism in which cells exploit multifaceted strategies in a highly cooperative manner to close nonadhesive gaps.

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