Results 91 to 100 of about 293,496 (400)

Apical constriction: themes and variations on a cellular mechanism driving morphogenesis

open access: yesDevelopment, 2014
Apical constriction is a cell shape change that promotes tissue remodeling in a variety of homeostatic and developmental contexts, including gastrulation in many organisms and neural tube formation in vertebrates.
Adam C. Martin, B. Goldstein
semanticscholar   +1 more source

Closing the gap in plan quality: Leveraging deep‐learning dose prediction for adaptive radiotherapy

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Balancing quality and efficiency has been a challenge for online adaptive therapy. Most systems start the online re‐optimization with the original planning goals. While some systems allow planners to modify the planning goals, achieving a high‐quality plan within time constraints remains a common barrier.
Sean J. Domal   +9 more
wiley   +1 more source

Síndrome do aprisionamento da artéria poplítea: relato de caso Popliteal artery entrapment syndrome: case report

open access: yesJornal Vascular Brasileiro, 2011
A síndrome do aprisionamento da artéria poplítea caracteriza-se pela compressão desta artéria sendo a principal causa de claudicação intermitente em jovens.
Marcelo Bettega   +4 more
doaj   +1 more source

Differences in the effects of turns and constrictions on the resistive response in current-biased superconducting wire after single photon absorption [PDF]

open access: yesSupercond. Sci. Technol. 26 (2013) 075008, 2013
We study how turns and constrictions affect the resistive response of the superconducting wire after instant in time and local in space heating, which models the absorption of the single photon by the wire. We find that the presence of constriction favors detection of photons of various energies but the presence of turn increases only ability to detect
arxiv   +1 more source

Still and rotating myosin clusters determine cytokinetic ring constriction

open access: yesNature Communications, 2016
The cytokinetic ring is essential for separating daughter cells during division. It consists of actin filaments and myosin motors that are generally assumed to organize as sarcomeres similar to skeletal muscles. However, direct evidence is lacking.
Viktoria Wollrab   +4 more
semanticscholar   +1 more source

Constricted boron nanotubes [PDF]

open access: yesChemical Physics Letters, 2005
11 pages, 4 ...
Alexander Quandt   +2 more
openaire   +3 more sources

Evaluating artifact‐free four‐dimensional computer tomography with 16 cm detector array

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose To evaluate a 16 cm‐array axial four‐dimensional computer tomography (4DCT) in comparison with a 4 cm‐array 4DCT in the presence of respiration irregularity. Method Ten traces of lung tumor motion from CyberKnife treatments were imported to move the lung cylinder, containing a spherical target, of a phantom.
Inhwan Yeo   +5 more
wiley   +1 more source

Review on Microbubbles and Microdroplets Flowing through Microfluidic Geometrical Elements

open access: yesMicromachines, 2020
Two-phase flows are found in several industrial systems/applications, including boilers and condensers, which are used in power generation or refrigeration, steam generators, oil/gas extraction wells and refineries, flame stabilizers, safety valves ...
Ana T. S. Cerdeira   +3 more
doaj   +1 more source

Resonant tunneling through protected quantum dots at phosphorene edges

open access: yes, 2016
We theoretically investigate phosphorene zigzag nanorribons as a platform for constriction engineering. In the presence of a constriction at the upper edge, quantum confinement of edge protected states reveals resonant tunnelling Breit-Wigner ...
Bahamon, D. A.   +3 more
core   +2 more sources

Effects of surface topography on low Reynolds number droplet/bubble flow through constricted passage [PDF]

open access: yes, 2020
This paper is an attempt to study the effects of surface topography on the flow of a droplet (or a bubble) in a low Reynolds number flow regime. Multiphase flows through a constricted passage find many interesting applications in chemistry and biology.
arxiv   +1 more source

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