Results 21 to 30 of about 519,225 (355)
Influence of COVID-19 confinement in students performance in higher education [PDF]
arXiv.org, 2020 This study explores the effects of COVID-19 confinement in the students’ performance in higher education. Using a field experiment of 458 students from three different subjects in Universidad Autónoma de Madrid (Spain), we study the differences in ...
T. González +6 more
semanticscholar +1 more source
Project Design of a Pulsed D-D Fusion Neutron Source Based on Field Reversed Configuration
中国工程科学, 2022 The fusion neutron source is of great significance for conducting material testing for future fusion reactors, as it can genuinely reflect the change of material properties under fusion neutron irradiation.
Pan Yuan +8 more
doaj +1 more source
OEDGE modeling of far-SOL tungsten impurity sources and screening in WEST
Nuclear Materials and Energy, 2022 The plasma background and impurity transport in the scrape-off layer (SOL) of the WEST tokamak are modeled for three discharges over a Psep power scan ranging between 1.5 and 2.35 MW. An extended modeling grid is used to investigate far-SOL sourcing from
J.B. Maeker +10 more
doaj +1 more source
High-quality nanocavities through multimodal confinement of hyperbolic polaritons in hexagonal boron nitride [PDF]
Nature Materials, 2022 Compressing light into nanocavities substantially enhances light–matter interactions, which has been a major driver for nanostructured materials research.
Hanan Herzig Sheinfux +17 more
semanticscholar +1 more source
No Confinement without Coulomb Confinement [PDF]
Physical Review Letters, 2003 We compare the physical potential $V_D(R)$ of an external quark-antiquark pair in the representation $D$ of SU(N), to the color-Coulomb potential $V_{\rm coul}(R)$ which is the instantaneous part of the 44-component of the gluon propagator in Coulomb gauge, $D_{44}(\vx,t) = V_{\rm coul}(|\vx|) δ(t)$ + (non-instantaneous).
openaire +3 more sources
The role of confinement loss in highly nonlinear silica holey fibers [PDF]
, 2003 Small-core holey fibers (HFs) can offer tight mode confinement, and are, therefore, attractive for highly nonlinear fiber applications. However, we show here that confinement loss can significantly degrade the performance of devices based on such small ...
Richardson, D. +4 more
core +1 more source
Magnetic Fields with Precise Quasisymmetry for Plasma Confinement. [PDF]
Physical Review Letters, 2021 Quasisymmetry is an unusual symmetry that can be present in toroidal magnetic fields, enabling the confinement of charged particles and plasma. Here it is shown that both quasiaxisymmetry and quasihelical symmetry can be achieved to a much higher ...
M. Landreman, E. Paul
semanticscholar +1 more source
Physics-Uspekhi, 1996 Numerous aspects and mechanisms of color confinement in QCD are surveyed. After a gauge-invariant definition of order parameters, the phenomenon is formulated in the language of field correlators, to select a particular correlator responsible for confinement.
openaire +2 more sources
Reusability of functionality-based application confinement policy abstractions [PDF]
, 2008 Traditional access control models and mechanisms struggle to contain the threats posed by malware and software vulnerabilities as these cannot differentiate between processes acting on behalf of users and those posing threats to users’ security as every ...
Payne, C. +3 more
core +1 more source
Forensic Social Work Ethics in Prolonged Solitary Confinement: A Struggle with Dual Loyalty
Journal of Forensic Social Work, 2022 Substantial evidence on the damaging psychiatric and health-related effects of prolonged solitary confinement has been well-documented in decades of research and civil rights litigation. The emerging ethical dilemma for forensic social work concerns the
Ali Winters, Mary Buser
doaj +1 more source