Results 21 to 30 of about 528 (87)
A New Padé Approach to Modeling Wormholes in Dekel‐Zhao Dark Matter Halos
Annalen der Physik, Volume 538, Issue 3, March 2026.A matter‐first Padé strategy is introduced to build traversable wormholes from prescribed dark‐matter halos. Rational Padé fits approximately the Dekel–Zhao density and are analytically integrated to obtain a shape function that exactly reproduces the intended matter content, avoiding spurious poles of geometry‐first schemes.
Jonathan Alves Rebouças +4 more
wiley +1 more source
Logarithmic and Strong Coupling Models in Weyl‐Type f(Q,T)$f(Q,T)$ Gravity
Annalen der Physik, Volume 538, Issue 1, January 2026.This work explores Weyl‐type f(Q,T) gravity using recent observational datasets — CC, Pantheon+, Union 3.0, and DESI DR2. Through MCMC analysis of logarithmic and strong coupling models, the study reveals a transition from deceleration to acceleration, quintessence‐to‐phantom dynamics, and late‐time consistency with LCDM, offering a geometry‐driven ...
Rahul Bhagat, S. K. Tripathy, B. Mishra
wiley +1 more source
Adsorption of Helium on Cationic or Anionic Tetracene and Pentacene
Small 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
IET Science, Measurement &Technology, Volume 20, Issue 1, January/December 2026.ABSTRACT Nanosensors represent a cornerstone of modern nanomedicine, enabling ultrasensitive, real‐time biosensing that bridges diagnostics and therapeutics towards personalised and proactive healthcare. This comprehensive review systematically examines the core principles of advanced nanosensors, including their classification by transduction ...
Mokhtar Aarabi, Haniyeh Faraji Azad
wiley +1 more source
Dynamical Dark Sector: A Joint Two‐Scalar‐Field Model for Dark Matter and Quintessence
Advances in Astronomy, Volume 2026, Issue 1, 2026.The physical nature of dark matter and dark energy remains one of the most pressing questions in modern cosmology. This work presents a phenomenological model where the entire dark sector is described by two minimally coupled scalar fields within general relativity.
Silvio A. Corrêa Junior, Jianguo Yan
wiley +1 more source
The Effect of Seductive Details on Knowledge Retention in Physics Videos: A Mixed Methods Study
Journal of Research in Science Teaching, Volume 62, Issue 8, Page 1923-1940, October 2025.ABSTRACT Research reports that interesting but irrelevant information, seductive details, in teaching material can impede learning. In science education, the inclusion of historical narratives in lessons to promote interest has been recommended but may hinder learning.
Richard Brock +2 more
wiley +1 more source
ChemPhysChem, Volume 26, Issue 18, September 19, 2025.In bulk carbonic acid (e.g., in interstellar icy dust grains) cluster formation produces two distinct UV‐Vis spectral features redshifted by ≈2 eV (25 nm) and by ≈5 eV (80 nm) compared to gas phase single molecule carbonic acid 's adiabatic ionization energy. Theory and experiment were used to investigate the origin of these shifts.
Dennis F. Dinu +7 more
wiley +1 more source
Two Micron‐Size Dark Dimensions
Fortschritte der Physik, Volume 73, Issue 8, August 2025.Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui +2 more
wiley +1 more source
Astronomische Nachrichten, Volume 346, Issue 5, June 2025.ABSTRACT Classification of galaxies, stars, and quasars using spectral data is fundamental to astronomy, but often relies heavily on redshift. This study evaluates the performance of 10 machine learning algorithms on SDSS data to classify these objects, with a particular focus on scenarios where redshift information is unavailable.
Debashis Chatterjee, Prithwish Ghosh
wiley +1 more source
Origins and lifetimes of secular and tidal bars in simulated disc galaxies. [PDF]
Mon Not R Astron SocFrosst M +3 more
europepmc +1 more source