Results 81 to 90 of about 230,507 (313)

Completeness Axioms in an Ordered Field [PDF]

open access: yes, 1971
The purpose of this paper was to prove the equivalence of the following completeness axioms. This purpose was carried out by first defining an ordered field and developing some basic theorems relative to it, then proving that lim [(u+u)*]^n = z (where u ...
Carter, Louis Marie
core  

Interpretations of the 10% Polarization Observed in the Early Forward Shock Afterglow of GRB 091208B

open access: yesThe Astrophysical Journal
The ∼10% optical polarization observed at the early stage of GRB 091208B comes from the forward shock emission, which is higher than the conventionally predicted value.
Yang Liu, Mi-Xiang Lan
doaj   +1 more source

On the bosonic origin of the elastic constants of the solids

open access: yesResults in Physics
It is shown that the elastic compliances, sij, are defined, as the elastic stiffness constants, cij, by bosons. The constants cij are well-known to be given by the velocities of the sound waves, called here Debye-bosons. Sound waves are evidently elastic
Ulrich Köbler
doaj   +1 more source

Application of the Mean-Field Kinetic Method for Description of the Reaction Diffusion

open access: yesФізика і хімія твердого тіла, 2017
In this paper we present the results of modeling of the reaction diffusion in fcc structure between pure component A and orderedphase A<sub>1</sub>B<sub>1</sub> using the kinetic mean-field method.
O. M. Rymar, A. M. Gusak
doaj   +1 more source

Mapping sequences can bias population receptive field estimates

open access: yesNeuroImage, 2020
Population receptive field (pRF) modelling is a common technique for estimating the stimulus-selectivity of populations of neurons using neuroimaging. Here, we aimed to address if pRF properties estimated with this method depend on the spatio-temporal ...
Elisa Infanti, D. Samuel Schwarzkopf
doaj   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

open access: yesFEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj   +3 more
wiley   +1 more source

Order-by-disorder in the antiferromagnetic J_{1}-J_{2}-J_{3} transverse-field Ising model on the ruby lattice

open access: yesPhysical Review Research
We investigate the quantum phase diagram of the J_{1}-J_{2}-J_{3} antiferromagnetic transverse-field Ising model on the ruby lattice. In the low-field limit we derive an effective quantum dimer model, analyzing how the extensive ground-state degeneracy ...
Antonia Duft   +4 more
doaj   +1 more source

Methodological integration in the study of religions

open access: yesScripta Instituti Donneriani Aboensis, 1999
"Religions" constitute a field of study and accordingly "the study of religion (or religions)" is a discipline. What is a discipline, that is, in the scientific sense?
Michael Pye
doaj   +1 more source

Approximation Properties for Orderings on ∗ -Fields [PDF]

open access: yesTransactions of the American Mathematical Society, 1988
The goal of this paper is to extend the main theorems on approximation properties of the topological space of orderings from formally real fields to skew fields with an involution
openaire   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

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