Results 101 to 110 of about 387,146 (299)

UV excess measures of accretion onto young very low-mass stars and brown dwarfs [PDF]

, 2008
Low-resolution spectra from 3000-9000 AA of young low-mass stars and brown dwarfs were obtained with LRIS on Keck I. The excess UV and optical emission arising in the Balmer and Paschen continua yields mass accretion rates ranging from 2e-12 to 1e-8 Mo ...
Baraffe I., Gregory J. Herczeg, Kurosawa R., Leinert C., Lynne A. Hillenbrand, Mauas P. J. D., Rucinski S. M., Schaefer G. H., Short C. I.   +8 more
core   +2 more sources

The radial dependence of pebble accretion rates: A source of diversity in planetary systems I. Analytical formulation [PDF]

, 2016
Context. The classical "planetesimal" accretion scenario for the formation of planets has recently evolved with the idea that "pebbles", centimeter- to meter-sized icy grains migrating in protoplanetary disks, can control planetesimal and/or planetary ...
S. Ida, T. Guillot, A. Morbidelli
semanticscholar   +1 more source

Unconventional mRNA processing and degradation pathways for the polycistronic yrzI (spyTA) mRNA in Bacillus subtilis

FEBS Letters, EarlyView.
The S1025 peptide is the major antidote to the YrzI toxin, which we renamed here as SpyT (Small Peptide YrzI Toxin) and SpyA (Small Peptide YrzI Antitoxin) (1). Degradation of the toxin–antitoxin spyTA mRNA, either by a translation‐dependent cleavage by the endoribonuclease Rae1 (2) or by direct attack by 3′‐exoribonucleases (3), also contributes to ...
Laetitia Gilet, Magali Leroy, Alexandre Maes, Ciarán Condon, Frédérique Braun   +4 more
wiley   +1 more source

Semi‐supervised classification of fundus images combined with CNN and GCN

Journal of Applied Clinical Medical Physics, Volume 23, Issue 12, December 2022., 2022
Abstract Purpose Diabetic retinopathy (DR) is one of the most serious complications of diabetes, which is a kind of fundus lesion with specific changes. Early diagnosis of DR can effectively reduce the visual damage caused by DR. Due to the variety and different morphology of DR lesions, automatic classification of fundus images in mass screening can ...
Sixu Duan, Pu Huang, Min Chen, Ting Wang, Xiaolei Sun, Meirong Chen, Xueyuan Dong, Zekun Jiang, Dengwang Li   +8 more
wiley   +1 more source

In‐situ Mass Balance Estimates Offshore Costa Rica

Geochemistry, Geophysics, Geosystems, 2021
The Costa Rican convergent margin has been considered a type erosive margin, with erosional models suggesting average losses up to −153 km3/km/m.y. However, three‐dimensional (3D) seismic reflection and Integrated Ocean Drilling Program data collected ...
J. Edwards, Jared Kluenser, Eli Silver, Rachel Lauer, Nathan Bangs, Brian Boston   +5 more
doaj   +1 more source

On the weighted Geometric mean of accretive matrices [PDF]

arXiv, 2020
In this paper, we discuss new inequalities for accretive matrices through non standard domains. In particular, we present several relations for $A^r$ and $A\sharp_rB$, when $A,B$ are accretive and $r\in (-1,0)\cup (1,2).$ This complements the well established discussion of such quantities for accretive matrices when $r\in [0,1],$ and provides accretive
arxiv  

Modeling of Disk-Star Interaction: Different Regimes of Accretion and Variability [PDF]

, 2008
The appearance and time variability of accreting millisecond X-ray pulsars (hereafter AMXPs, e.g. Wijnands & van der Klis 1998) depends strongly on the accretion rate, the effective viscosity and the effective magnetic diffusivity of the disk-magnetosphere boundary.
arxiv   +1 more source

The Baryonic Assembly of Dark Matter Halos

, 2011
We use a suite of cosmological hydrodynamic simulations to quantify the accretion rates of baryons into dark matter halos and the resulting baryon mass fractions, as a function of halo mass, redshift, and baryon type (including cold and hot gas). We find
Adelberger, Barnes, Bauermeister, Bell, Benson, Benson, Bigiel, Birnboim, Bond, Bouché, Bower, Boylan-Kolchin, Brooks, Cattaneo, Cattaneo, Chen, Chung-Pei Ma, Claude-André Faucher-Giguère, Conroy, Croton, Daddi, Dai, Davis, Davé, Davé, Dekel, Dekel, Dekel, Dijkstra, Dutton, Dušan Kereš, Efstathiou, Efstathiou, Eisenstein, Elmegreen, Erb, Erb, Erb, Fakhouri, Fakhouri, Fakhouri, Fakhouri, Fardal, Faucher-Giguère, Faucher-Giguère, Faucher-Giguère, Faucher-Giguère, Faucher-Giguère, Faucher-Giguère, Forcada Miro, Förster, Genel, Genel, Genzel, Genzel, Genzel, Gingold, Gnedin, Goerdt, Hayward, Heckman, Heckman, Hernquist, Hockney, Hoekstra, Hopkins, Hopkins, Hopkins, Katz, Katz, Kennicutt, Kereš, Kereš, Kereš, Kereš, Khochfar, Kimm, Komatsu, Krumholz, Law, Leitner, Lu, Lucy, Maller, Martin, McBride, McCarthy, McGaugh, Mihos, Murali, Murray, Murray, Neistein, Ocvirk, Oppenheimer, Pettini, Press, Prochaska, Rees, Sancisi, Schaye, Shapley, Sheth, Silk, Simha, Somerville, Springel, Springel, Springel, Springel, Springel, Springel, Steidel, Steidel, Stewart, Thoul, van de Voort, van Dokkum, Wechsler, White, White, White, Wright   +122 more
core   +1 more source

The power of microRNA regulation—insights into immunity and metabolism

FEBS Letters, EarlyView.
MicroRNAs are emerging as crucial regulators at the intersection of metabolism and immunity. This review examines how miRNAs coordinate glucose and lipid metabolism while simultaneously modulating T‐cell development and immune responses. Moreover, it highlights how cutting‐edge artificial intelligence applications can identify miRNA biomarkers ...
Stefania Oliveto, Nicola Manfrini, Stefano Biffo   +2 more
wiley   +1 more source

Protostar mass functions in young clusters [PDF]

, 2013
In an improved model of protostar mass functions (PMFs), protostars gain mass from isothermal cores in turbulent clumps. Their mass accretion rate is similar to Shu accretion at low mass, and to reduced Bondi accretion at high mass. Accretion durations follow a simple expression in which higher-mass protostars accrete for longer times.
arxiv   +1 more source