Results 161 to 170 of about 59,677 (306)

Loop Quantum Gravity Vacuum with Nondegenerate Geometry

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
In loop quantum gravity, states of the gravitational field turn out to be excitations over a vacuum state that is sharply peaked on a degenerate spatial geometry.
Hanno Sahlmann, Tim Koslowski
doaj   +1 more source

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Advancing Electric Vehicles Through Nanotechnology: Overcoming Challenges in Battery Performance, Energy Efficiency, and Sustainability

open access: yesBattery Energy, Volume 5, Issue 1, January 2026.
Nanotechnology is revolutionizing electric vehicles by enhancing battery performance, enabling lightweight materials, improving energy efficiency, and promoting sustainable recycling. Projected advances could boost electric vehicle range by 30%–50%, cut charging time by half, and lower manufacturing costs by up to 30%, driving greener, high‐performance
Veeraraghavan Sakthimurugan   +2 more
wiley   +1 more source

Exploring the Effects of Reduced Gravitational Field Impacts on Convective Heat Transfer: A Comprehensive Review

open access: yesHeat Transfer, Volume 55, Issue 1, Page 764-774, January 2026.
ABSTRACT This review explores the impact of gravitational instability on convective heat transfer, integrating existing research results and theoretical models. Gravitational instability is vital in promoting or hindering convective actions in different systems, such as atmospheric events, ocean currents, and industrial processes.
Hossam A. Nabwey   +3 more
wiley   +1 more source

Newtonian gravity in loop quantum gravity

open access: yes, 2010
We apply a recent argument of Verlinde to loop quantum gravity, to conclude that Newton's law of gravity emerges in an appropriate limit and setting. This is possible because the relationship between area and entropy is realized in loop quantum gravity when boundaries are imposed on a quantum spacetime.
openaire   +2 more sources

A Cross‐Disciplinary Analysis of AI Policies in Academic Peer Review

open access: yesLearned Publishing, Volume 39, Issue 1, January 2026.
ABSTRACT Rapid advances of artificial intelligence (AI) have substantially impacted the field of academic publishing. This study examines AI integration in peer review by analysing policies from 439 high‐ and 363 middle‐impact factor (IF) journals across disciplines. Using grounded theory, we identify patterns in AI policy adoption. Results show 83% of
Zhongshi Wang, Mengyue Gong
wiley   +1 more source

Massive particles tunneling from quantum Oppenheimer-Snyder black holes and black hole entropy

open access: yesPhysics Letters B
In this paper, we investigate the tunneling process of massive scalar particles from a quantum Oppenheimer-Snyder black hole using the tunneling approach proposed by Parikh and Wilczek.
Hongwei Tan, Kui Xiao
doaj   +1 more source

Navigating Solute Carrier Transporters—A Comprehensive Review of Functionalized Small Molecule Probes for Target Identification and Characterization

open access: yesMedicinal Research Reviews, Volume 46, Issue 1, Page 238-271, January 2026.
ABSTRACT Solute carrier transporters (SLCs) are integral membrane proteins that play pivotal roles in maintaining cellular homeostasis by mediating the transport of a diverse range of substrates across cell membranes. With their involvement in fundamental physiological processes such as nutrient uptake, neurotransmitter signaling, and drug transport ...
Majlen A. Dilweg   +3 more
wiley   +1 more source

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