Results 41 to 50 of about 27,937 (241)
Gauge Theories with Cayley-Klein $SO(2;j)$ and $SO(3;j)$ Gauge Groups [PDF]
, 1995 Gauge theories with the orthogonal Cayley-Klein gauge groups $SO(2;j)$ and $SO(3;{\bf j})$ are regarded. For nilpotent values of the contraction parameters ${\bf j}$ these groups are isomorphic to the non-semisimple Euclid, Newton, Galilei groups and ...
B. P. Barber +20 more
core +5 more sources
The formation of massive primordial stars in the presence of moderate UV backgrounds
, 2014 Radiative feedback from populations II stars played a vital role in early structure formation. Particularly, photons below the Lyman limit can escape the star forming regions and produce a background ultraviolet (UV) flux which consequently may influence
Bovino, S. +4 more
core +1 more source
Wage Polarization in the Context of the Czech Republic
Review of Economic Perspectives, 2022 Existing studies have provided evidence of job polarization in many developed countries. The issue of wage polarization is less obvious: many articles do not address it at all, and some even confuse it with job polarization.
Náplava Radek
doaj +1 more source
El futuro del trabajo en América Latina: crisis, cambio tecnológico y control
El Trimestre Económico, 2021 Este trabajo analiza las distintas tendencias que determinan el futuro del trabajo en América Latina; se hace especial hincapié en revisar la hipótesis que pone el impacto del cambio tecnológico en el centro de la explicación de los cambios en el futuro ...
Juan Grigera, Agustin Nava
doaj +1 more source
The SU(N) Wilson Loop Average in 2 Dimensions
, 1994 We solve explicitly a closed, linear loop equation for the SU(2) Wilson loop average on a two-dimensional plane and generalize the solution to the case of the SU(N) Wilson loop average with an arbitrary closed contour.
't Hooft +13 more
core +1 more source
Infant Mental Health Journal: Infancy and Early Childhood, EarlyView.Abstract Maternal substance use is a pressing public health issue that confers risk for maternal health, the parent‐infant relationship, and child development. Integrated interventions that jointly address maternal substance use and child development have shown promise for enhancing child outcomes.
Sophie Barriault +6 more
wiley +1 more source
, 2007 We examine aspects of primordial star formation in the presence of a molecular hydrogen-dissociating ultraviolet background. We compare a set of AMR hydrodynamic cosmological simulations using a single cosmological realization but with a range of ...
Brian W. O’Shea +3 more
core +1 more source
The depletion of gas in high-redshift dwarf galaxies from an inhomogeneous reionization [PDF]
, 2013 The reionization of the intergalactic medium (IGM) was likely inhomogeneous and extended. By heating the IGM and photo-evaporating gas from the outskirts of galaxies, this process can have a dramatic impact on the growth of structures.
Mesinger, Andrei, Sobacchi, Emanuele
core +1 more source
BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.ABSTRACT Objective To determine if routine administration of antenatal corticosteroids affects the risk of infant lower respiratory tract infection and/or childhood asthma. Design Linked population‐based cohort analysed using a regression discontinuity design, which better controls for confounding than standard observational studies.
Jennifer A. Hutcheon +8 more
wiley +1 more source
Is the Labour Force Participation Rate Non-Stationary in Romania?
Review of Economic Perspectives, 2015 The purpose of this paper is to test hysteresis of the Romanian labour force participation rate, by using time series data, with quarterly frequency, covering the period 1999Q1-2013Q4.
Tiwari Aviral Kumar, Mutascu Mihai
doaj +1 more source