Results 71 to 80 of about 116,588 (305)

Bandgap Characteristics And Dynamic Behaviours Of Mechanical Metamaterials [PDF]

open access: yes, 2022
This study’s aim is to systemically demonstrate the bandgap characteristic and dynamic performance of mechanical metamaterials and attempt to evaluate the relationship between them, based on theoretical models, finite element analyses and experimental ...
Zhou, Youchuan
core  

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Direct experimental evidence of time-temperature superposition at finite strain for an amorphous polymer network [PDF]

open access: yes, 2015
The time-temperature superposition property of an amorphous polymer acrylate network is characterized at infinitesimal strain by standard dynamic mechanical analysis tests.
GILORMINI, Pierre   +4 more
core   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

open access: yesFEBS 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

Biophysical approaches for studying viral entry

open access: yesFEBS Letters, EarlyView.
Viruses infect all living organisms and have been responsible for major epidemics and pandemics. Their ongoing evolutionary battle with host defenses creates a constant need for improved tools to study viral behavior. Advancing methods to probe viral attachment, fusion, and genome release deepen our understanding of how infections begin and support the
Inbar Yosibash, Raya Sorkin
wiley   +1 more source

APPLICATION OF NANOSCOPIC DYNAMIC MECHANICAL ANALYSIS FOR EVALUATING THE MECHANICAL BEHAVIOR OF HARD TISSUES AND BONDED INTERFACES [PDF]

open access: yes, 2011
In this study Dynamic Mechanical Anlaysis (DMA) was applied to dentin, the macro hybrid layer and intact hybrid layers of the bonded dental restorative interface using nanoindentation. Both intertubular and peritubular dentin were evaluated by DMA using
Ryou, Heonjune
core  

Experimental study and numerical simulation of the vertical bounce of a polymer ball over a wide temperature range [PDF]

open access: yes, 2014
The dependence to temperature of the rebound of a solid polymer ball on a rigid slab is investigated. An acrylate polymer ball is brought to a wide range of temperatures, covering its glass to rubbery transition, and let fall on a granite slab while the ...
GILORMINI, Pierre   +2 more
core   +1 more source

Dynamic mechanical properties of human brain tissue [PDF]

open access: yesJournal of Biomechanics, 1969
Investigators have been studying the mechanical phenomena associated with impact to the head for many years. Several theories on the behavior of the brain during head impact have come from these studies but there has been a notable lack of information on the bulk mechanical properties of the brain which are necessary for the evaluation of these ...
Fallenstein, G. T.   +2 more
openaire   +3 more sources

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Effects of Carbon Nanotubes on Dynamic Mechanical Property, Thermal Property, and Crystal Structure of Poly(L-lactic acid) [PDF]

open access: yes, 2012
[[abstract]]Effects of carbon nanotubes (CNT) on the dynamic mechanical property, thermal property, and crystal structure of poly(L-lactic acid) (PLLA) were investigated.
王宗櫚
core  

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