Results 61 to 70 of about 171,990 (269)

Model pluralism for logic

Noûs, EarlyView.
Abstract It is well‐recognized in the sciences that a multitude of nonequivalent models are used by researchers to fulfill a range of goals, even for the same target system, a result known broadly as model pluralism. The possibility of the same form of pluralism occurring in logic, however, has not been adequately considered.
Ben Martin
wiley   +1 more source

Pion-mass dependence of the nucleon-nucleon interaction

Physics Letters B, 2020
Nucleon-nucleon interactions, both bare and effective, play an important role in our understanding of the non-perturbative strong interaction, as well as nuclear structure and reactions.
Qian-Qian Bai, Chun-Xuan Wang, Yang Xiao, Li-Sheng Geng   +3 more
doaj   +1 more source

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

Experimental 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

The Curious Concept That Almost Nobody Seemed to Care About at First: Virtual Particles in the Post‐War Period**

Berichte zur Wissenschaftsgeschichte, Volume 48, Issue 1-2, Page 143-162, August 2025.
Abstract Short‐lived, unobservable, and not subject to the usual rules of conservation of energy and momentum, virtual particles—an integral part of the conceptual framework of quantum field theory (QFT)—exhibit a number of curious characteristics which, in recent decades, have in part fueled important discussions about their ontological status ...
Jean‐Philippe Martinez
wiley   +1 more source

POLARIZATION PHENOMENA IN PROCESS e⁺+e⁻ → N+Ñ+γ

East European Journal of Physics, 2018
The emission of the hard photon from the initial state is considered. The nucleon polarization and the differential cross sections for some experimental conditions have been calculated.
G. I. Gakh, M. I. Konchatnij, N. P. Merenkov, A. G. Gakh   +3 more
doaj  

Mu and Tau Neutrino Thermalization and Production in Supernovae: Processes and Timescales

, 2000
We investigate the rates of production and thermalization of $\nu_\mu$ and $\nu_\tau$ neutrinos at temperatures and densities relevant to core-collapse supernovae and protoneutron stars.
A. Burrows, A. Burrows, A. Burrows, A. Burrows, A. L. Fetter, Adam Burrows, B. L. Friman, D. A. Dicus, D. L. Tubbs, D. L. Tubbs, D. L. Tubbs, D. Lamb, E. G. Flowers, G. Raffelt, G. Sigl, H. Suzuki, H.-T. Janka, J. Pons, Jorge E. Horvath, R. P. Brinkmann, S. Bruenn, S. Hannestad, S. Reddy, Todd A. Thompson, W. Keil, W. R. Yueh   +25 more
core   +1 more source

Reconstructing the late Pleistocene glacial history of the Cairngorm Mountains, Scotland, using paired cosmogenic 10Be and 14C

Journal of Quaternary Science, Volume 40, Issue 6, Page 977-995, August 2025.
ABSTRACT Chronologic and geomorphic evidence of past glaciations is largely recorded in areas at relatively low elevation and/or landscapes defined by high glacial erosion. As a result, data from areas that did not experience significant glacial erosion and the highest elevation locations are lacking from reconstructions of past ice masses.
Samuel E. Kelley, Alice M. Doughty, Nathaniel Lifton, Simon Pendleton, Cormac O'Brien, Graeme Warren   +5 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, Ignatios Antoniadis, Dieter Lüst   +2 more
wiley   +1 more source

Spin-dependent three-nucleon force effects on nucleon-deuteron scattering [PDF]

, 2007
We construct a phenomenological three-nucleon force (3NF) model that gives a good description of polarization observables in elastic nucleon-deuteron (N-$d$) scattering at a low energy together with a realistic nucleon-nucleon force and a 3NF arising ...
S. Ishikawa, S. Ishikawa, S. Ishikawa
core   +3 more sources

Simulation of Galactic Cosmic Ray Proton Fluxes With the Daily Modulation Parameter: Validation With AMS‐02 Data for 2011–2019

Journal of Geophysical Research: Space Physics, Volume 130, Issue 8, August 2025.
Abstract The flux of galactic cosmic rays (GCRs) is modulated by solar activity on different time scales. This is often described with the force‐field approximation via the single variable parameters of the modulation parameter, which formally corresponds to the average rigidity loss of GCR particles in the heliosphere. The force‐field approximation is
Pauli Väisänen, Bruna Bertucci, Nicola Tomassetti, Miguel Orcinha, Ilya Usoskin, Sergey Koldobskiy   +5 more
wiley   +1 more source