Results 11 to 20 of about 5,410,149 (201)

Effectively minimizing effective fixed-points [PDF]

open access: yesProceedings of the American Mathematical Society, 1971
This note answers an open problem posed by H. Rogers, Jr. on p. 202 of Theory of recursive functions and effective computability by proving the following invariant form of one of his results [op. cit., p. 200, Theorem XIV]: for any fixed-point function n there exists a recursive function g such that if z is an index of an effective operator Ψ
openaire   +2 more sources

Labor market effects of fixed-term employment contracts in Spain [PDF]

open access: yes, 1996
This article studies the labor market effects of flxed-term employment contracts in Spain. First, we present various relevant features of the institutional setting which gave rise to and resulted from the introduction of fixed-term contracts.
Alba, Alfonso
core   +10 more sources

AI ecosystem pillars and economic growth: Implications for knowledge economy architecture from AI vibrancy subindices [PDF]

open access: yesKnowledge & Performance Management
Type of the article: Research Article AI is widely regarded by the IMF and the World Bank as a catalyst for growth. AI should be understood as a multidimensional socio-technical system embedded across institutions, industries, and society.
Kalilla Abdullayev   +6 more
doaj   +1 more source

Revisiting the relationship between board structure and bank performance in Ethiopian commercial banks

open access: yesCogent Business & Management, 2023
This study examines the relationship between board structure and the performance of 15 Ethiopian commercial banks from 2010 to 2022. Using panel data analysis, the study assesses the impact of board size and gender diversity on performance, measured by ...
Dereje Fedasa Hordofa
doaj   +1 more source

Is a positive association between female employment and fertility still spurious in developed countries?

open access: yesDemographic Research, 2019
Background: The cross-sectional association between female employment and fertility across developed countries turned from negative to positive during the mid-1980s.
Takashi Oshio
doaj   +1 more source

Self-enhanced diffraction from fixed photorefractive gratings during coherent reconstruction [PDF]

open access: yes, 1993
We explore, theoretically and experimentally, the effects of self-enhancement (or self-depletion) of the diffraction which occurs during coherent reconstruction from fixed photorefractive gratings.
Kewitsch, Anthony   +3 more
core   +1 more source

Fixed Effects IRT Model

open access: yesBehaviormetrika, 2006
A fixed effect item response theory (IRT) model is developed for modeling group specific item parameters. Two applications are presented. The first application is that the proposed model can be used to detect whether a response mechanism is ignorable using the splitter item technique.
Fox, Gerardus J.A.   +2 more
openaire   +2 more sources

The relationship between transport, economic growth and environmental degradation for ninety countries

open access: yesSustinere: Journal of Environment and Sustainability, 2018
This paper investigates the relationship between freight transport, economic growth and environmental degradation (CO2 emissions) experienced by ninety countries over the period 1980-2014.
Listiono Listiono
doaj   +1 more source

Managerial ability and firm performance: Evidence from an emerging market

open access: yesCogent Business & Management, 2021
This study empirically examines the impact of managerial ability on firm performance. Using the sample of 246 firms listed at Pakistan Stock Exchange during 2009 to 2017, this study finds that more able managers significantly increase the firm ...
Aamir Inam Bhutta   +4 more
doaj   +1 more source

Optimal sample size in the multilevel modeling: Investigating the impact of the sample size on the random and fixed effects, using the TIMSS data [PDF]

open access: yesفصلنامه نوآوری‌های آموزشی, 2020
Due to the increasing use of the multilevel models, determining the number of the samples is one of the major concerns of the researchers in this field, so the main purpose of this study is to investigate the optimal sample size in the two-level models ...
Zahrā Naghsh, Zahrā Hāshemi
doaj   +1 more source

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