Results 81 to 90 of about 2,608,665 (304)
AAA+ protein unfoldases—the Moirai of the proteome
FEBS Letters, EarlyView.AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley +1 more source
PLoS ONEMany practitioners, such as pilots, frequently face working memory (WM) demands under acute stress environments, while the effect of acute stress on WM has not been conclusively studied because it is moderated by a variety of factors.
Yaowei Liang +6 more
doaj +1 more source
Heterogeneous materials: a new class of materials with unprecedented mechanical properties
Materials Research Letters, 2017 Here we present a perspective on heterogeneous materials, a new class of materials possessing superior combinations of strength and ductility that are not accessible to their homogeneous counterparts.
Xiaolei Wu, Yuntian Zhu
doaj +1 more source
Anisotropic constitutive modeling for nickel base single crystal superalloy Rene N4 at 982 C [PDF]
A back stress/drag stress constitutive model based on a crystallographic approach to model single crystal anisotropy is presented. Experimental results demonstrated the need for the back stress variable in the inelastic flow equations.
Alden, D. +3 more
core +1 more source
The Quantum Stress-Tensor in Self-Similar Spherical Dust Collapse
, 1998 We calculate the quantum stress tensor for a massless scalar field in the 2-d self-similar spherical dust collapse model which admits a naked singularity. We find that the outgoing radiation flux diverges on the Cauchy horizon.
A. Ori +19 more
core +1 more source
FEBS Letters, EarlyView.Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure +3 more
wiley +1 more source
Stress Distribution and Fluctuation Cycle on the Rack Face of the Rock Cutting Tool
Shock and Vibration, 2019 The distribution of the stress field on the rack face has significant impacts on the performance and service life of the rock cutting tool. A dynamic simulation model of the stress on the rock cutting tool is established by finite element code Abaqus ...
Xiaofeng Yang +2 more
doaj +1 more source
, 2009 The next-to-leading term of the renormalized stress-energy tensor of the quantized massive field with an arbitrary curvature coupling in the spacetime of the Schwarzschild black hole is constructed.
B. S. DeWitt +5 more
core +1 more source
Molecular Oncology, EarlyView.Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon +13 more
wiley +1 more source
Stress level and its influencing factors among employees in a plastic manufacturing and the implication towards work performance [PDF]
, 2011 Stress has been viewed as an inevitable consequence of work life. A worker will fell stress when his or her does not match their job requirements. Work stress come from a variety of sources and it can affect people in different ways.
Bon, Abdul Talib +4 more
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