Results 191 to 200 of about 73,052 (295)

A metal-poor star with abundances from a pair-instability supernova. [PDF]

open access: yesNature, 2023
Xing QF   +9 more
europepmc   +1 more source

Predicting Infrared Optical Properties of Materials Using Machine Learning Interatomic Potentials

open access: yesMaterials Genome Engineering Advances, EarlyView.
This work proposes a new fast computing framework for infrared reflectance spectra, MTP‐FIRE, based on machine learning potential, which can achieve the same accuracy as the existing first‐principles calculation, but can be two orders of magnitude faster on average.
Lianduan Zeng   +8 more
wiley   +1 more source

Bioclimatic, demographic and anthropogenic correlates of grizzly bear activity patterns in the Greater Yellowstone Ecosystem

open access: yesOikos, EarlyView.
Plasticity of diel activity rhythms may be a key element for adaptations of wildlife populations to changing environmental conditions. In the last decades, grizzly bears Ursus arctos in the Greater Yellowstone Ecosystem (GYE) have experienced notable environmental fluctuations, including changes in availability of food sources and severe droughts ...
Aurora Donatelli   +4 more
wiley   +1 more source

Ultra-high-energy γ-ray emission associated with the tail of a bow-shock pulsar wind nebula. [PDF]

open access: yesInnovation (Camb)
LHAASO Collaborationxurenfeng@ihep.ac.cnk-wang@smail.nju.edu.cnchensz@ihep.ac.cnryliu@nju.edu.cnxisq@ihep.ac.cnhushicong@ihep.ac.cn.
europepmc   +1 more source

A binary-related origin mediated by environmental conditions for blue straggler stars. [PDF]

open access: yesNat Commun
Ferraro FR   +9 more
europepmc   +1 more source

The Curious Case of CysE: Diversity and Distribution of Serine Acetyltransferases in Bacteria

open access: yesProteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT Serine acetyltransferase (CysE) is a member of the left‐handed β‐helix family of acetyltransferases that catalyze the rate limiting step in de novo cysteine biosynthesis. There are two isoforms of CysE that differ in length, with the shorter isoform lacking approximately 76 amino acids at the N‐terminus of the protein from the serine ...
Keely E. A. Oldham   +3 more
wiley   +1 more source

A nearby dark molecular cloud in the Local Bubble revealed via H<sub>2</sub> fluorescence. [PDF]

open access: yesNat Astron
Burkhart B   +22 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy