Results 51 to 60 of about 73,566 (229)

Social and economic development of Ukraine: Modelling the migration factor impact

open access: yesEconomics and Business Review, 2022
The paper aims to analyse the dependence of the economic and social development of Ukraine on migration factors (human resources and remittances) in the years 2002–2020.
Vasyltsiv Taras   +3 more
doaj   +1 more source

New Properties of Large-$c$ Conformal Blocks from Recursion Relation

open access: yes, 2018
We study large $c$ conformal blocks outside the known limits. This work seems to be hard, but it is possible numerically by using the Zamolodchikov recursion relation.
Kusuki, Yuya
core   +1 more source

Quantum mechanics gives stability to a Nash equilibrium [PDF]

open access: yes, 2001
We consider a slightly modified version of the Rock-Scissors-Paper (RSP) game from the point of view of evolutionary stability. In its classical version the game has a mixed Nash equilibrium (NE) not stable against mutants. We find a quantized version of
A. H. Toor   +11 more
core   +3 more sources

Synthesizing polyethersulphone membranes with hybrid iron/nickel nanoparticles for dyes removal: An efficient biogenesis approach

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Industrial wastewater contamination by azo dyes poses a significant environmental challenge. This study reports the green synthesis of bimetallic iron/nickel (Fe/Ni) nanoparticles using moringa leaf extract, which acted as both a reducing and capping agent, and their incorporation into polyethersulphone (PES) membranes to produce eco‐friendly ...
Qusay A. Almajras   +7 more
wiley   +1 more source

C35 and C32: Citrange Rootstocks for Citrus

open access: yesHortScience, 1986
Abstract C35 and C32 citranges are being released for rootstock trial because of their relative tolerance to the citrus nematode (Tylenchulus semipenetrans Cobb), to Phytophthora species, and to the tristeza virus. They also impart considerable vigor to their scions and have shown satisfactory yields with some scions in limited tests.
J. W. Cameron, R. K. Soost
openaire   +1 more source

Innovative electrospun geopolymer/zeolite/PVA composite membranes

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Proposed scheme of gas adsorption mechanisms on electrospun geopolymer/zeolite/PVA composite membranes. Abstract Innovative electrospun poly(vinyl alcohol) (PVA)–geopolymer–zeolite 13X composite membranes were successfully fabricated and systematically characterized.
Mariana Schneider   +7 more
wiley   +1 more source

Estimativa da ingestão e digestibilidade de erva e bolota em porcos alentejanos pela técnica dos n-alcanos Estimation of intake and digestibility of pasture and acorns by alentejano pigs using n-alkanes

open access: yesRevista de Ciências Agrárias, 2007
Com o objectivo de estimar, em porcos Alentejanos, a ingestão e a digestibilidade de erva e bolota, foi realizado um ensaio utilizando n-alcanos de cadeia longa como marcadores fecais.
C. Mendes   +3 more
doaj  

(Sp)-1-Diphenylphosphanyl-2-{(S)-[2-(diphenylphosphanyl)phenyl]hydroxymethyl}ferrocene [PDF]

open access: yes, 2008
The absolute configuration of the title compound, [Fe(C5H5)(C36H29OP2)], is Sp at the ferrocene group and S at the asymmetric C atom. Both P atoms have a trigonal-pyramidal conformation.
Bats, Jan W.   +3 more
core   +1 more source

Selective Optical Properties of Cement for Enhanced Radiative Cooling and Energy‐Efficient Construction Materials

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Cement phases are good materials for radiative cooling thanks to the selective emissivity in IR ATW. Cement powders have high reflectance of solar radiation which reduces the thermal losses. The onset of the absorption curves is defined by bound excitons. Sulfates have higher radiated powers and reflectance than calcium silicates.
Jozef Janovec   +3 more
wiley   +1 more source

Measuring Dynamics of Risk and Performance of Sector Indices on Zagreb Stock Exchange

open access: yesCroatian Review of Economic, Business and Social Statistics, 2015
Investors are interested in sector diversification on stock markets among other important portfolio topics. This paper looks at five sector indices on Croatian capital market as an example of a small, relatively illiquid market.
Škrinjarić Tihana
doaj   +1 more source

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