Results 101 to 110 of about 2,843,859 (384)

The cytoskeletal control of B cell receptor and integrin signaling in normal B cells and chronic lymphocytic leukemia

FEBS Letters, EarlyView.
In lymphoid organs, antigen recognition and B cell receptor signaling rely on integrins and the cytoskeleton. Integrins act as mechanoreceptors, couple B cell receptor activation to cytoskeletal remodeling, and support immune synapse formation as well as antigen extraction.
Abhishek Pethe, Tanja Nicole Hartmann
wiley   +1 more source

Stellar Pulsation and Evolution: A Combined Theoretical Renewal and Updated Models (SPECTRUM). I. Updating Radiative Opacities for Pulsation Models of Classical Cepheid and RR-Lyrae

The Astrophysical Journal
Pulsating stars are universally recognized as precise distance indicators and tracers of stellar populations. Their variability, combined with well-defined relationships between pulsation properties and intrinsic evolutionary parameters such as ...
Giulia De Somma, Marcella Marconi, Santi Cassisi, Roberto Molinaro   +3 more
doaj   +1 more source

Asteroseismic Constraints on the Models of Hot B Subdwarfs: Convective Helium-Burning Cores

EPJ Web of Conferences, 2017
Asteroseismology of non-radial pulsations in Hot B Subdwarfs (sdB stars) offers a unique view into the interior of core-helium-burning stars. Ground-based and space-borne high precision light curves allow for the analysis of pressure and gravity mode ...
Schindler Jan-Torge, Green Elizabeth M., Arnett W. David   +2 more
doaj   +1 more source

Toward a consistent use of overshooting parametrizations in 1D stellar evolution codes [PDF]

, 2015
Several parametrizations for overshooting in 1D stellar evolution calculations coexist in the literature. These parametrizations are used somewhat arbitrarily in stellar evolution codes, based on what works best for a given problem, or even for ...
M. Viallet, C. Meakin, V. Prat, D. Arnett   +3 more
semanticscholar   +1 more source

Panchromatic fits to the Globular Cluster NGC 6366 [PDF]

, 2013
We present panchromatic isochrone fits to the color magnitude data of the globular cluster NGC 6366, based on HST ACS/WFC and SOAR photometric data. Before performing the isochrone fits, we corrected the photometric data for differential reddening and ...
Bonatto, C., Campos, Fabíola, Kepler, S. O.   +2 more
core   +1 more source

The coevolution of the velocity and mass functions of galaxies and dark haloes

, 2010
We employ a bias-corrected abundance matching technique to investigate the coevolution of the LCDM dark halo mass function (HMF), the observationally derived velocity dispersion and stellar mass functions (VDF, SMF) of galaxies between z=1 and 0.
Abadi, Auger, Battaglia, Battaglia, Behroozi, Bell, Bell, Bernardi, Bezanson, Blumenthal, Bolton, Boylan-Kolchin, Brown, Bryan, Bullock, Bundy, Cappellari, Cattaneo, Cenarro, Chae, Chae, Chartas, Choi, Cimatti, Cimatti, Conroy, Conroy, Conselice, Cool, Courteau, de Ravel, Desroches, di Serego Alighieri, Dunkley, Dutton, Faber, Feldmann, Ferrarese, Fontana, Fontanot, Gao, Gavazzi, Gnedin, Grillo, Guo, Ho, Hopkins, Hopkins, Hopkins, Hyde, Ilbert, Jenkins, Kazantzidis, Klypin, Klypin, Kochanek, Koopmans, Kravtsov, Kyu-Hyun Chae, Lacey, Li, Loeb, Lokas, Longhetti, Lukić, Macciò, Marchesini, Masjedi, Matsuoka, Moster, Nakajima, Navarro, Navarro, Newman, Nipoti, Oguri, Pizagno, Pizzella, Pozzetti, Press, Pérez-González, Reed, Rudd, Saha, Scarlata, Seigar, Shankar, Sheth, Sheth, Sheth, Springel, Stringer, Tasitsiomi, Tinker, Tissera, Tonry, Treu, Trujillo, Vale, van der Wel, van der Wel, van Dokkum, van Dokkum, Wake, Warren, Wechsler, White, White, Winn, Xue   +109 more
core   +1 more source

Social context prevents heat hormetic effects against mutagens during fish development

FEBS Letters, EarlyView.
This study shows that sublethal heat stress protects fish embryos against ultraviolet radiation, a concept known as ‘hormesis’. However, chemical stress transmission between fish embryos negates this protective effect. By providing evidence for the mechanistic molecular basis of heat stress hormesis and interindividual stress communication, this study ...
Lauric Feugere, Claudio Silva De Freitas, Adam Bates, Kenneth B. Storey, Pedro Beltran‐Alvarez, Katharina C. Wollenberg Valero   +5 more
wiley   +1 more source

The evolution of CNO isotopes: a new window on cosmic star formation history and the stellar IMF in the age of ALMA [PDF]

, 2017
We use state-of-the-art chemical models to track the cosmic evolution of the CNO isotopes in the interstellar medium of galaxies, yielding powerful constraints on their stellar initial mass function (IMF). We re-assess the relative roles of massive stars,
D. Romano, F. Matteucci, F. Matteucci, Zhi-Yu Zhang, Zhi-Yu Zhang, Pantelis Papadopoulos, Pantelis Papadopoulos, Pantelis Papadopoulos, R. Ivison, R. Ivison   +9 more
semanticscholar   +1 more source

Stellar Yields and Chemical Evolution [PDF]

Symposium - International Astronomical Union, 2002
Several speakers at this symposium have alluded to the zeroth-order agreement between the Type II supernovae (SNe) stellar yields, as predicted by the models of those most responsible for driving progress in the field - i.e. Arnett (1991,1996); Maeder (1992); Woosley & Weaver (1995); Langer & Henkel (1995); Thielemann et al.
openaire   +4 more sources

Interaction vesicles as emerging mediators of host‐pathogen molecular crosstalk and their implications for infection dynamics

FEBS Letters, EarlyView.
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke, Izadora Volpato Rossi, Marcel I. Ramirez   +2 more
wiley   +1 more source