Results 51 to 60 of about 899,308 (256)
, 2005 We study the decay of the cosmological constant in two spacetime dimensions through production of pairs. We show that the same nucleation process looks as quantum mechanical tunneling (instanton) to one Killing observer and as thermal activation ...
A. D. Linde +5 more
core +1 more source
A Role of Myocardin Related Transcription Factor-A (MRTF-A) in Scleroderma Related Fibrosis. [PDF]
, 2015 In scleroderma (systemic sclerosis, SSc), persistent activation of myofibroblast leads to severe skin and organ fibrosis resistant to therapy. Increased mechanical stiffness in the involved fibrotic tissues is a hallmark clinical feature and a cause of ...
Abraham, D +11 more
core +3 more sources
FEBS Letters, EarlyView.Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi +5 more
wiley +1 more source
Fast Compact Laser Shutter Using a Direct Current Motor and 3D Printing [PDF]
, 2015 We present a mechanical laser shutter design that utilizes a DC electric motor to rotate a blade which blocks and unblocks a light beam. The blade and the main body of the shutter are modeled with computer aided design (CAD) and are produced by 3D ...
Braverman, Boris +3 more
core +2 more sources
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source
Kinetics of Topological Stone-Wales Defect Formation in Single Walled Carbon [PDF]
, 2015 Topological Stone-Wales defect in carbon nanotubes plays a central role in plastic deformation, chemical functionalization, and superstructure formation. Here, we systematically investigate the formation kinetics of such defects within density functional
Kabir, Mukul, Van Vliet, Krystyn J.
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FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
Arsenic Sorption on Mechanically Activated Magnetite and Olivine [PDF]
Acta Montanistica Slovaca, 2012 Arsenic sorption on mechanically activated minerals such as magnetite Fe3O4 (Kiruna, Sweden) and olivine (Mg,Fe)2SiO4 (Ǻheim,Norway) has been studied and compared in this work.
Zdenka Bujňáková +2 more
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Enhancement Experiment on Cementitious Activity of Copper-Mine Tailings in a Geopolymer System
Fibers, 2017 Copper-mine tailings are the residual products after the extraction of precious copper metal from copper ores, and their storage can create numerous environmental problems.
Lin Yu +4 more
doaj +1 more source
Influence of mechanical activation on porous chromiumnickel steel produced by powder metallurgy [PDF]
, 2016 In this paper the influence of mechanical activation on porous chromium-nickel steel produced by powder metallurgy. For the experiments, we use the same materials with different mechanical activation time. The effects of mechanical activation time on the
Даренская, Елена Анатольевна +2 more
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