Results 51 to 60 of about 14,680 (203)

A Bifunctional T3SS‐Effector Simultaneously Cleaves Host MAP Kinase and Inhibits PPM1A Phosphatase

Advanced Science, EarlyView.
Pathogenic bacteria exploit the metalloprotease effector NleD to subvert host defenses. Structural, biochemical, and infection analyses reveal a bifunctional mechanism by which NleD binds and inhibits the host phosphatase PPM1A while preserving its proteolytic activity against MAPKs.
Yaakov Socol, Lihi Gur‐Arie, Netanel Tzarum, Tamara Wellins, Naama Katsowich, Miriam Ravins, Michal Bejerano‐Sagie, Klil Cohen, Oded Livnah, Joshua N. Adkins, Ernesto Nakayasu, Alexei Savchenko, Yeu Khai Choong, Nikhil Kumar Tulsian, Saturo Machida, Sigal Ben‐Yehuda, Yael Litvak, J. Sivaraman, Ilan Rosenshine   +18 more
wiley   +1 more source

A STELLAR MASS THRESHOLD FOR QUENCHING OF FIELD GALAXIES [PDF]

The Astrophysical Journal, 2012
We demonstrate that dwarf galaxies (10^7 < M_stellar < 10^9 Msun) with no active star formation are extremely rare (<0.06%) in the field. Our sample is based on the NASA-Sloan Atlas which is a re-analysis of the Sloan Digital Sky Survey Data Release 8.
Geha, M., Blanton, M., Yan, R., Tinker, J.   +3 more
openaire   +2 more sources

The impact of quenching on galaxy profiles in the simba simulation [PDF]

Monthly Notices of the Royal Astronomical Society, 2020
ABSTRACT We study specific star formation rate (sSFR) and gas profiles of star-forming (SF) and green valley (GV) galaxies in the simba cosmological hydrodynamic simulation. SF galaxy half-light radii (Rhalf) at z = 0 and their evolution (∝(1 + z)−0.78) agree with observations.
Sarah Appleby, Romeel Davé, Katarina Kraljic, Daniel Anglés-Alcázar, Desika Narayanan   +4 more
openaire   +4 more sources

Death by Impact: Evidence for Merger-driven Quenching in a Collisional Ring Galaxy at Cosmic Noon

The Astrophysical Journal
The role of interactions and mergers in the rapid quenching of massive galaxies in the early Universe remains uncertain, largely due to the difficulty of directly linking mergers to quenching.
Amir H. Khoram, Sirio Belli, Carlo Nipoti, Raffaele Pascale, Andrew B. Newman, Federico Marinacci, Richard S. Ellis, Letizia Bugiani, Matteo Sapori, Eric Giunchi   +9 more
doaj   +1 more source

ELUCID IV: Galaxy Quenching and its Relation to Halo Mass, Environment, and Assembly Bias

, 2017
We examine the quenched fraction of central and satellite galaxies as a function of galaxy stellar mass, halo mass, and the matter density of their large scale environment.
Bosch, Frank C. van den, Chen, Sihan, Cui, Weiguang, Huang, Shuiyao, Jing, Yipeng, Kang, Xi, Li, Guoliang, Li, Shijie, Lim, S. H., Lin, Weipeng, Lu, Yi, Mo, H. J., Shi, Feng, Tweed, Dylan, Wang, Enci, Wang, Huiyuan, Wei, Chengliang, Yang, Xiaohu, Yang, Yang, Zhang, Youcai   +19 more
core   +1 more source

The VIPERS Multi-Lambda Survey. II. Diving with massive galaxies in 22 square degrees since z = 1.5 [PDF]

, 2016
We investigate the evolution of the galaxy stellar mass function (SMF) and stellar mass density from redshift z=0.2 to z=1.5 of a $K_{AB}$ 11.5 galaxies is largely dominated by quiescent galaxies and increases by a factor 2 from z~1 to z~0.2, which ...
Arnouts, S., Bolzonella, M., Comte, V., Coupon, J., Davidzon, I., Fritz, A., Fèvre, O. Le, Garilli, B., Guzzo, L., Hudelot, P., Ilbert, O., McCracken, H. J., Morrison, G. E., Moutard, T., Scodeggio, M., Van Waerbeke, L.   +15 more
core   +5 more sources

A Circuit of Mechanically Regulated Transcription Factors Balances Regenerative and Fibrotic Memory of Mesenchymal Stromal Cells

Advanced Science, EarlyView.
Producing MSCs on rigid culture substrates induces a scar‐making phenotype, jeapordizing therapeutic success. ‘Tissue‐soft’ surfaces prevent MSC fibrogenesis and preserve regenerative traits. An epigenetic network, driven by HOXA11 and SALL1, maintains ‘soft memory’ by keeping chromatin open in relaxed MSCs, promoting anti‐fibrotic programs.
Fereshteh Sadat Younesi, Andrew E. Miller, Li Diao, Xinying Guo, Natalie Andonian, Elham Karimizadeh, Thomas H. Barker, Boris Hinz   +7 more
wiley   +1 more source

The DEEP2 galaxy redshift survey: the evolution of the blue fraction in groups and the field [PDF]

, 2007
We explore the behavior of the blue galaxy fraction over the redshift range 0.75
Coil, Alison L., Cooper, Michael C., Croton, Darren J., Davis, Marc, Faber, S. M., Gerke, Brian F., Guhathakurta, Puragra, Koo, David C., Newman, Jeffrey A., Weiner, Benjamin J., Willmer, Christopher N. A., Yan, Renbin   +11 more
core   +1 more source

The THESEUS Space Mission and the Infrared Telescope Calibration Unit

Astronomische Nachrichten, EarlyView.
ABSTRACT The Transient High‐Energy Sky and Early Universe Surveyor (THESEUS) is an ESA M7 mission concept currently in Phase A, designed to exploit gamma‐ray bursts to probe the early Universe while advancing multi‐messenger and time‐domain astrophysics. To achieve its ambitious goals, THESEUS will combine wide‐band x‐ray and gamma‐ray monitors with an
András Péter Joó, Rebeka Gyöngyi Kiss, Lorenzo Amati, Bendegúz Koncz, Örs Detre, Gyula Zilizi, Zsolt Bagoly, István I. Rácz, Sándor Pintér, L. Viktor Tóth   +9 more
wiley   +1 more source

Connecting Star Formation Quenching with Galaxy Structure and Supermassive Black Holes through Gravitational Heating of Cooling Flows

, 2014
Recent observations suggested that star formation quenching in galaxies is related to galaxy structure. Here we propose a new mechanism to explain the physical origin of this correlation. We assume that while quiescent galaxies are maintained quenched by
Guo, Fulai
core   +1 more source