Results 51 to 60 of about 103,451 (210)

The effects of stellar winds of fast-rotating massive stars in the earliest phases of the chemical enrichment of the Galaxy

, 2010
We use the growing data sets of very-metal-poor stars to study the impact of stellar winds of fast rotating massive stars on the chemical enrichment of the early Galaxy.
Beers, C. Chiappini, Cayrel, Cescutti, Charbonnel, Chiappini, Chiappini, Chiappini, Christlieb, Christlieb, Collet, Ekström, Fabbian, François, Frebel, Frebel, Frebel, G. Cescutti, Heger, Hirschi, Israelian, Iwamoto, Lai, Maeder, Masseron, Matteucci, Matteucci, Meynet, Meynet, Nissen, Norris, Pipino, Scalo, Schneider, Spite, Spite, Woosley   +36 more
core   +1 more source

Energy Landscapes in Chemical Reactions and Transport

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
Kinetics/dynamics of chemical reactivity and transport of chemical species in a solid are both determined by the energy landscape in which they take place. Discussing common grounds but also distinct differences may help in advancing the understanding in both fields.
Karl‐Michael Weitzel
wiley   +1 more source

Quenching and Recovery of Persistent X-Ray Emission during a Superburst in 4U 1820–30

The Astrophysical Journal
We report the superburst from 4U 1820–30 in 2021 observed by the Monitor of All-sky X-ray Image and Neutron star Interior Composition Explorer (NICER).
Zhijiao Peng, Zhaosheng Li, Yuanyue Pan, Tao Fu, Wenhui Yu, Yupeng Chen, Shu Zhang, Maurizio Falanga, Shuang-Nan Zhang   +8 more
doaj   +1 more source

Structure and Spectroscopy of Criegee Intermediates in Gas‐ and Aqueous Environments

Helvetica Chimica Acta, EarlyView.
ABSTRACT The dynamics and spectroscopy of the small (H2COO) and large (CH3CHOO) Criegee intermediates (CIs) in the gas phase, inside/on water droplets, on amorphous solid water (ASW) and in bulk water are investigated using validated energy functions.
Cangtao Yin, Meenu Upadhyay, Markus Meuwly   +2 more
wiley   +1 more source

Survey on AI‐Enabled Computer Vision Technologies and Applications for Space Robotic Missions

Journal of Field Robotics, EarlyView.
ABSTRACT This survey provides a comprehensive overview of recent advancements and challenges in Artificial Intelligence (AI)‐enabled computer vision (CV) techniques for space robotic missions, spanning critical phases such as Entry, Descent, and Landing (EDL), orbital operations, and planetary surface exploration.
Maciej Quoos, Steven Kay, Julia Wajoras, Robert Field, Evridiki V. Ntagiou, Fakher Mohammad, Yang Gao   +6 more
wiley   +1 more source

First Photometric, Orbital Period, and Tidal Instability Investigations for Four Contact Binaries with Extremely Low Mass Ratios

The Astronomical Journal
Contact binaries with extremely low mass ratios, known as the most plausible progenitors of luminous red novae, are critical targets for refining theoretical models of binary mergers and investigating the lower mass ratio limit of contact binaries.
Yun-Xia Yu, Xue-Tong Liu, Zi-Bin Meng, Ke Hu, Zhen-Xin Lei, Fu-Yuan Xiang   +5 more
doaj   +1 more source

Astrophysical Fractals: Interstellar Medium and Galaxies

, 1999
The interstellar medium is structured as a hierachy of gas clouds, that looks self-similar over 6 orders of magnitude in scales and 9 in masses. This is one of the more extended fractal in the Universe.
Combes, F.
core   +2 more sources

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

Systems Research and Behavioral Science, EarlyView.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source

Molecular cooling in the diffuse interstellar medium [PDF]

, 2013
We use a simple one-zone model of the thermal and chemical evolution of interstellar gas to study whether molecular hydrogen (H2) is ever an important coolant of the warm, diffuse interstellar medium (ISM).
Clark, P. C., Glover, S. C. O.
core   +1 more source

Double dissociation between conduction aphasia and conduction agraphia supports a ventro‐dorsal partition of the left arcuate fasciculus

Journal of Neuropsychology, EarlyView.
Abstract We identified in two awake surgery cases a postoperative double dissociation between phonological and graphemic output buffer deficits. Using lesion‐symptom mapping from ischaemic mini‐strokes and preoperative tractography, we demonstrated that the phonological (resp. graphemic) disorder fitted with ventral (resp.
Valéry Mandonnet, Isabelle Poisson, Francine Chassoux, Bertrand Devaux, Sébastien Froelich, Emmanuel Mandonnet   +5 more
wiley   +1 more source