Results 51 to 60 of about 89,033 (293)

Post-flare UV light curves explained with thermal instability of loop plasma [PDF]

, 2011
In the present work we study the C8 flare occurred on September 26, 2000 at 19:49 UT and observed by the SOHO/SUMER spectrometer from the beginning of the impulsive phase to well beyond the disappearance in the X-rays.
Bryans, E. Landi, F. Reale, Feldman, Fryxell, Karpen, Klimchuk, Orlando, Orlando, Reale, Reeves, S. Orlando, Spitzer, Summers, Warren, Woods   +15 more
core   +2 more sources

Heterozygous loss‐of‐function alleles associate the conserved 3′‐5′ exoribonuclease EXOSC10 with hypersensitivity to the anticancer drug 5‐fluorouracil

Molecular Oncology, EarlyView.
EXOSC10, an essential nuclear RNA exosome‐associated 3′‐5′ exoribonuclease, is inhibited by the anticancer drug 5‐fluorouracil (5‐FU), and EXOSC10 depletion increases 5‐FU sensitivity. The colon‐cancer variant EXOSC10S402T, located in a proteolysis motif, is stable and nuclear but nonfunctional in vivo.
Radhika Sain, Yann Le Page, Frédéric Percevault, Emmanuelle Becker, Luc Negroni, Almudena Fernandez, Marta Cantero, Diego Muñoz‐Santos, Lluís Montoliu, Cyrille Garnier, Michael Primig   +10 more
wiley   +1 more source

Application of a New Silica Gel Ionization Intensifier on Nanogram Lead Isotope Analysis

Yankuang ceshi, 2014
In nuclear forensics the amount of Pb to be analyzed is usually in the order of several nanograms; that is >10-3 of ionization efficiency is required for mass spectrometry measurements.
LIU Xue-mei, TANG Lei, FU Zhong-hua, LONG Kai-ming   +3 more
doaj   +2 more sources

Stability and Evolution of Supernova Fallback Disks [PDF]

, 2001
We show that thin accretion disks made of Carbon or Oxygen are subject to the same thermal ionization instability as Hydrogen and Helium disks. We argue that the instability applies to disks of any metal content.
El-Khoury W., George I. M., Hulleman F., Illarionov A. F., Kristen Menou, Lars Hernquist, Livio M., Ludwig K., Lynden-Bell D., Marsh T. R., Marsh T. R., Meyer F., Meyer-Hofmeister E., Mineshige S., Pringle J. E., Richard D., Rosalba Perna, Shakura N. I., Smak J., Smak J., Spruit H. C., Tsugawa M., Vrtilek S. D.   +22 more
core   +4 more sources

Cell‐cycle‐specific lesion evolution rather than inhibition of double‐strand‐break repair underpins cisplatin radiosensitization

Molecular Oncology, EarlyView.
We analyze cisplatin–DNA adducts (CDAs) and double‐strand breaks (DSBs) in a cell‐cycle‐dependent manner. We find that CDAs form similarly across all cell cycle phases. DSBs arise only in S‐phase. CDAs might not directly impair DSB repair, but S‐phase DSB lesions evolve in the presence of CDAs and disrupt repair in G2, also causing radiosensitization ...
Ye Qiu, Xixi Lin, Emil Mladenov, Veronika Mladenova, Jürgen Thomale, Ali Sak, Yao Wang, Yunxuan Deng, Eleni Gkika, Martin Stuschke, George Iliakis   +10 more
wiley   +1 more source

Thermo-Resistive Instability of Hot Planetary Atmospheres

, 2012
The atmospheres of hot Jupiters and other strongly-forced exoplanets are susceptible to a thermal instability in the presence of ohmic dissipation, weak magnetic drag and strong winds.
Baraffe, Batygin, Batygin, Burrows, Burrows, Charbonneau, Cowan, Fortney, Fortney, Fortney, Goody, Hubeny, Knutson, Laughlin, Madhusudhan, Menou, Perna, Perna, Perna, Rauscher, Seager, Showman, Winn, Wu   +23 more
core   +1 more source

Molecular dynamics simulations of positively selected codons in FcγRI reveal novel biochemical binding properties

FEBS Open Bio, EarlyView.
Evolutionary analysis across 32 placental mammals identified positive selection at residues H148 and W149 in the immune receptor FcγR1. Ancestral reconstruction combined with molecular dynamics simulations reveals how these mutations may influence receptor structure and dynamics, providing insight into the evolution of antibody recognition and immune ...
David A. Young, Omar Arias‐Gaguancela, Fiona Gibson, Morgan Grainger, Jodie Score, Amit Nathubhai, Mauricio Cafiero, Lee Richard Machado   +7 more
wiley   +1 more source

Reliability assessment of high-power GaN-HEMT devices with different buffers under influence of gate bias and high-temperature tests

Applied Physics Express
This study compares Vth-instability in D-mode MIS-HEMT devices between two epitaxial layers, AlN/AlGaN/GaN superlattice-W1, and three-step graded AlGaN-W2.
Shivendra K. Rathaur, Le Trung Hieu, Abhisek Dixit, Edward Yi Chang   +3 more
doaj   +1 more source

Possible role of magnetosphere-ionosphere coupling in auroral arc generation [PDF]

Annales Geophysicae, 2000
Three models for the magnetosphere-ionosphere coupling feedback instability are considered. The first model is based on demagnetization of hot ions in the plasma sheet.
W. Lyatsky, A. M. Hamza
doaj   +1 more source

Stability of small-scale baryon perturbations during cosmological recombination [PDF]

, 2015
In this paper, we study small-scale fluctuations (baryon pressure sound waves) in the baryon fluid during recombination. In particular, we look at their evolution in the presence of relative velocities between baryons and photons on large scales ($k \sim
Hirata, Christopher, Venumadhav, Tejaswi
core   +2 more sources