Results 51 to 60 of about 10,106 (229)

Adsorption of Helium on Cationic or Anionic Tetracene and Pentacene

open access: yesSmall Structures, Volume 7, Issue 1, January 2026.
How does the arrangement of helium atoms that are adsorbed on tetracene or pentacene ions change with increasing coverage? When does the adsorption layer change from 1D to 2D, and to 3D? Is the transition abrupt? Are the helium atoms localized? Is the arrangement the same for cations and anions? What changes as the acene grows in length?
Miriam Kappe   +6 more
wiley   +1 more source

On the Electromagnetic Energy Flow Along Geodesics

open access: yesRadio Science, Volume 61, Issue 1, January 2026.
Abstract We present a field‐theoretic framework for modeling electromagnetic energy propagation in heterogeneous media by introducing the concept of electromagnetic geodesics. Unlike traditional ray optics, which assumes either a straight‐line propagation or a simple bending in refractive media, our approach formulates wave propagation as geodetic ...
Jacob T. Fokkema, Peter M. van den Berg
wiley   +1 more source

The Structure of the Local Interstellar Medium. VII. Additional New Mg ii, Fe ii, and Mn ii Observations toward Stars within 100 pc

open access: yesThe Astrophysical Journal
We present new high-resolution ( R  ∼ 114,000), near-ultraviolet spectra in the direction of 36 nearby (
Azmain H. Nisak   +4 more
doaj   +1 more source

The chemistry of H2NC in the interstellar medium and the role of the C + NH3 reaction [PDF]

open access: green, 2023
M. Agundez   +5 more
openalex   +1 more source

Science of omics: a molecular space odyssey

open access: yes
Experimental Physiology, EarlyView.
Salomé Coppens   +3 more
wiley   +1 more source

Theoretical Spectroscopic Study of Isopropyl Alcohol (CH3-CHOH-CH3)

open access: yesThe Astrophysical Journal
Accurate spectroscopic parameters of isopropyl alcohol, a volatile organic compound present on Earth and in extraterrestrial atmospheres, are provided.
Mohammed Salah   +3 more
doaj   +1 more source

Filamentary Hierarchies and Superbubbles: Galactic Multiscale Magnetohydrodynamic Simulations of Giant Molecular Cloud to Star Cluster Formation

open access: yesThe Astrophysical Journal
There is now abundant observational evidence that star formation is a highly dynamical process that connects filament hierarchies and supernova feedback from galaxy-scale kiloparsec filaments and superbubbles to giant molecular clouds (GMCs) on 100 pc ...
Bo Zhao   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy