Results 71 to 80 of about 7,768,769 (373)
, 2017 We have analyzed the atomic and molecular gas using the 21 cm HI and 2.6/1.3 mm CO emissions toward the young supernova remnant (SNR) RCW 86 in order to identify the interstellar medium with which the shock waves of the SNR interact.
Fukuda, T. +15 more
core +1 more source
The Structure of Some Crystals as Indicated by Their Diffraction of X-rays
, 1913 A new method of investigating the structure of a crystal has been afforded by the work of Laue* and his collaborators on the diffraction of X-rays by crystals.
W. Bragg
semanticscholar +1 more source
Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing
FEBS Letters, EarlyView.Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley +1 more source
Dramatic increase in oxidative stress in carbon-irradiated normal human skin fibroblasts. [PDF]
PLoS ONE, 2013 Skin complications were recently reported after carbon-ion (C-ion) radiation therapy. Oxidative stress is considered an important pathway in the appearance of late skin reactions.
Carine Laurent +5 more
doaj +1 more source
X-ray phase contrast imaging of biological specimens with tabletop synchrotron radiation [PDF]
, 2011 Since their discovery in 1896, x-rays have had a profound impact on science, medicine and technology. Here we show that the x-rays from a novel tabletop source of bright coherent synchrotron radiation can be applied to phase contrast imaging of ...
Alexander G. R. Thomas +15 more
core +2 more sources
Imprinting magnetic information in manganites with X-rays
, 2012 The effect of x-rays on an orbital and charge ordered epitaxial film of a Pr$_{0.5}$Ca$_{0.5}$MnO$_{3}$ is presented. As the film is exposed to x-rays, the antiferromagnetic response increases and concomitantly the conductivity of the film improve. These
Garganourakis, M. +8 more
core +1 more source
X-rays from Radio-Galaxies: BeppoSAX Observations [PDF]
, 2000 We briefly review BeppoSAX observations of X-ray bright radio-galaxies. Their X-ray spectra are quite varied, and perhaps surprisingly, any similarity between radio-loud AGN and Seyfert galaxies is the exception rather than the rule.
C.M Urry +14 more
core +3 more sources
The role of histone modifications in transcription regulation upon DNA damage
FEBS Letters, EarlyView.This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley +1 more source
Effect of Time-varying X-Ray Emission from Stellar Flares on the Ionization of Protoplanetary Disks
The Astrophysical JournalX-rays have significant impacts on cold, weakly ionized protoplanetary disks by increasing the ionization rate and driving chemical reactions. Stellar flares are explosions that emit intense X-rays and are the unique source of hard X-rays with an energy ...
Haruka Washinoue +2 more
doaj +1 more source
The Journal of Poultry Science, 2006 It is necessary to deplete the endogenous primordial germ cells (PGCs) from recipient embryos when germline chimaeric chickens are produced by the transfer of PGCs. In this study, effects of soft X-ray irradiation on the restriction of PGC proliferation
Hiroyuki Nakamichi +6 more
doaj +1 more source