Results 51 to 60 of about 32,877,590 (249)

Activation volume of selected liquid crystals in the density scaling regime [PDF]

open access: yes, 2017
In this paper, we demonstrate and thoroughly analyze the activation volumetric properties of selected liquid crystals in the nematic and crystalline E phases in comparison with those reported for glass-forming liquids.
Grzybowski, A.   +3 more
core   +2 more sources

Instrumental Neutron Activation Analysis of Trace Elements in Some Food Spices Consumed In Tehran, Iran [PDF]

open access: yesIranian Journal of Medical Physics, 2017
Introduction There is a growing interest in determining the concentration of various elements in food spices. In the present study, the instrumental neutron activation analysis (INAA) was employed to measure the trace elements in 11 commonly food spices ...
ali asghar fathivand   +2 more
doaj   +1 more source

Prompt-gamma activation analysis

open access: yesJournal of Research of the National Institute of Standards and Technology, 1993
A permanent, full-time instrument for prompt-gamma activation analysis is nearing completion as part of the Cold Neutron Research Facility (CNRF). The design of the analytical system has been optimized for high gamma detection efficiency and low background, particularly for hydrogen. Because of the purity of the neutron beam, shielding requirements are
openaire   +2 more sources

Effects of unstable training on muscle activation: a systematic review and meta-analysis of electromyographic studies [PDF]

open access: yesPeerJ
Objective To systematically evaluate the effects of unstable training (UT) on muscle activation and provide activation prescriptions for different muscle regions, offering more targeted guidance for different populations in muscle activation.
Zihan Bao, Shun Wang, Ziyang Li
doaj   +2 more sources

HDAC-mediated control of ERK- and PI3K-dependent TGF-β-induced extracellular matrix-regulating genes [PDF]

open access: yes, 2010
Histone deacetylases (HDACs) regulate the acetylation of histones in the control of gene expression. Many non-histone proteins are also targeted for acetylation, including TGF-ß signalling pathway components such as Smad2, Smad3 and Smad7. Our studies in
Andrew D. Rowan   +54 more
core   +1 more source

Keap1 represses nuclear activation of antioxidant responsive elements by Nrf2 through binding to the amino-terminal Neh2 domain.

open access: yesGenes & Development, 1999
Transcription factor Nrf2 is essential for the antioxidant responsive element (ARE)-mediated induction of phase II detoxifying and oxidative stress enzyme genes.
K. Itoh   +7 more
semanticscholar   +1 more source

Large activation energy analysis of the ignition of self-heating porous bodies [PDF]

open access: yes, 1984
A large activation energy analysis of the problem of thermal ignition of self-heating porous bodies is carried out by means of a regular perturbation method.
Liñán Martínez, Amable   +1 more
core   +1 more source

Quantum escape kinetics over a fluctuating barrier

open access: yes, 2005
The escape rate of a particle over a fluctuating barrier in a double well potential exhibits resonance at an optimum value of correlation time of fluctuation. This has been shown to be important in several variants of kinetic model of chemical reactions .
Bidhan Chandra Bag   +4 more
core   +1 more source

Concepts, Instrumentation and Techniques of Neutron Activation Analysis

open access: yes, 2013
Following the discovery of neutron by J. Chadwick in 1932 (Nobel prize, 1935) and the re‐ sults of F. Joliot and I. Curie in 1934, neutron activation analysis was first developed by G. Hevesy and H. Levi in 1936.
H. Slamene, T. Akhal, B. Zouranen
semanticscholar   +1 more source

The Autonomic Brain: An Activation Likelihood Estimation Meta-Analysis for Central Processing of Autonomic Function

open access: yesJournal of Neuroscience, 2013
The autonomic nervous system (ANS) is of paramount importance for daily life. Its regulatory action on respiratory, cardiovascular, digestive, endocrine, and many other systems is controlled by a number of structures in the CNS.
F. Beissner   +3 more
semanticscholar   +1 more source

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