Results 31 to 40 of about 196,937 (287)
A massive, quiescent galaxy at redshift of z=3.717 [PDF]
, 2017 In the early Universe finding massive galaxies that have stopped forming stars present an observational challenge as their rest-frame ultraviolet emission is negligible and they can only be reliably identified by extremely deep near-infrared surveys ...
A Cimatti +41 more
core +3 more sources
Low‐quiescent‐current flexible mode buck–boost converter
IET Power Electronics, 2015 In this study, a mode‐flexible buck/boost converter with four operation modes aiming at improving efficiency and extending battery life in portable devices is proposed. When the battery supply decreases or increases, the transition is smooth and the mode can be chosen flexible.
Li‐Ye Cheng +2 more
openaire +1 more source
MOSFIRE Spectroscopy of Quiescent Galaxies at 1.5 < z < 2.5. II - Star Formation Histories and Galaxy Quenching [PDF]
, 2019 We investigate the stellar populations for a sample of 24 quiescent galaxies at 1.5 < z < 2.5 using deep rest-frame optical spectra obtained with Keck MOSFIRE. By fitting templates simultaneously to the spectroscopic and photometric data, and exploring a
Belli, Sirio +2 more
core +2 more sources
Chemical Evolution in VeLLOs [PDF]
, 2007 A new type of object called "Very Low Luminosity Objects (VeLLOs)" has been discovered by the Spitzer Space Telescope. VeLLOs might be substellar objects forming by accretion.
Lee, Jeong-Eun
core +2 more sources
Dynamics of on-off neural firing patterns and stochastic effects near a sub-critical Hopf bifurcation. [PDF]
PLoS ONE, 2015 On-off firing patterns, in which repetition of clusters of spikes are interspersed with epochs of subthreshold oscillations or quiescent states, have been observed in various nervous systems, but the dynamics of this event remain unclear. Here, we report
Gu Huaguang +3 more
doaj +1 more source
PLoS Genetics, 2020 Neural stem cells (NSCs) are crucial for development, regeneration, and repair of the nervous system. Most NSCs in mammalian adult brains are quiescent, but in response to extrinsic stimuli, they can exit from quiescence and become reactivated to give ...
Wei Yung Ding +2 more
doaj +1 more source
Sperm Motility Regulation in Male and Female Bird Genital Tracts
The Journal of Poultry Science, 2022 Sperm drastically change their flagellar movement in response to the surrounding physical and chemical environment. Testicular sperm are immotile; however, they gain the competence to initiate motility during passage through the male reproductive tract.
Mei Matsuzaki, Tomohiro Sasanami
doaj +1 more source
Quasi-digital low-dropout voltage regulators uses controlled pass transistors [PDF]
, 2016 This article presents a low quiescent current output capacitorless quasi-digital CMOS LDO regulator with controlled pass transistors according to load demands.
Alarcón Cot, Eduardo José +2 more
core
YAP1::TFE3 mediates endothelial‐to‐mesenchymal plasticity in epithelioid hemangioendothelioma
Molecular Oncology, EarlyView.The YAP1::TFE3 fusion protein drives endothelial‐to‐mesenchymal transition (EndMT) plasticity, resulting in the loss of endothelial characteristics and gain of mesenchymal‐like properties, including resistance to anoikis, increased migratory capacity, and loss of contact growth inhibition in endothelial cells.
Ant Murphy +9 more
wiley +1 more source
Testing temporal Bell inequalities through repeated measurements in rf-SQUIDs [PDF]
, 1995 Temporal Bell-like inequalities are derived taking into account the influence of the measurement apparatus on the observed magnetic flux in a rf-SQUID.
Aspect +25 more
core +2 more sources