Results 21 to 30 of about 27,937 (241)
Assessing inflow rates in atomic cooling halos: implications for direct collapse black holes [PDF]
, 2015 Supermassive black holes are not only common in the present-day galaxies, but billion solar masses black holes also powered $z\geq 6$ quasars. One efficient way to form such black holes is the collapse of a massive primordial gas cloud into a so-called ...
Latif, M. A., Volonteri, M.
core +1 more source
Condition for low-mass star formation in shock-compressed metal-poor clouds [PDF]
, 2018 Shocks may have been prevalent in the early Universe, associated with virialization and supernova explosions, etc. Here, we study thermal evolution and fragmentation of shock-compressed clouds, by using a one-zone model with detailed thermal and chemical
Nakauchi, Daisuke +2 more
core +2 more sources
Entrepreneurship vs. Freelancing: What’s the Difference?
Naše Gospodarstvo, 2020 The development of Internet technology (IT) at the end of the 20th century and its integration into the business sector has led to the emergence of digital labour platforms that provoke a reorganization of work arrangements by matching the demand and ...
Huđek Ivona +2 more
doaj +1 more source
Labour Contribution and Productivity in the European Union: A Cluster Analysis
Folia Oeconomica Stetinensia, 2017 The paper deals with an analysis of dynamics and the differentiation of basic features that characterize employment in European Union countries. The conducted research considered characteristics of the labour force such as the share of total labour ...
Batóg Jacek
doaj +1 more source
Second-Generation Objects in the Universe: Radiative Cooling and Collapse of Halos with Virial Temperatures Above 10^4 Kelvin [PDF]
, 2001 The first generation of protogalaxies likely formed out of primordial gas via H2-cooling in cosmological minihalos with virial temperatures of a few 1000K.
Bithell M. +14 more
core +2 more sources
Repeated weighting in mixed-mode censuses
Economics and Business Review, 2021 The main aim of the paper is to use the repeated weighting (RW) method on data from the National Census of Population and Housing 2011 (NCPH) and Labour Force Survey (LFS) to ensure consistency between margins of final tables derived from different ...
Szymkowiak Marcin, Wilak Kamil
doaj +1 more source
Formation of Sub-galactic Clouds under UV Background Radiation [PDF]
, 1999 The effects of the UV background radiation on the formation of sub-galactic clouds are studied by means of one-dimensional hydrodynamical simulations. The radiative transfer of the ionizing photons due to the absorption by HI, HeI and HeII, neglecting ...
Babul A. +31 more
core +4 more sources
Demand Drivers of Female Labor Force Participation: Evidence From Selected African Countries
ECONOMICS, 2019 This study investigates the demand drivers of female labor participation in a panel of twenty (20) selected African countries across five sub-regional groupings (West Africa, East Africa, North Africa, Central Africa and South Africa), over the period ...
Idowu Omowumi O.
doaj +1 more source
Economics and Business Review, 2022 The aim of this study is to analyse changes in employment and their determinants in twenty sectors of economic activity in Poland during the COVID-19 pandemic. The study focuses on the direct short-run employment effects. The changes in employment in the
Kwiatkowski Eugeniusz, Szymańska Agata
doaj +1 more source
Radiation-Hydrodynamical Collapse of Pregalactic Clouds in the Ultraviolet Background [PDF]
, 2000 To elucidate the effects of the UV background radiation on the collapse of pregalactic clouds, we implement a radiation-hydrodynamical calculation, combining one-dimensional spherical hydrodynamics with an accurate treatment of the radiative transfer of ...
1000090025461 +13 more
core +4 more sources