Search results for "J.4"
showing 10 items of 63 documents
Casimir-Lifshitz force out of thermal equilibrium between dielectric gratings
2014
We calculate the Casimir-Lifshitz pressure in a system consisting of two different 1D dielectric lamellar gratings having two different temperatures and immersed in an environment having a third temperature. The calculation of the pressure is based on the knowledge of the scattering operators, deduced using the Fourier Modal Method. The behavior of the pressure is characterized in detail as a function of the three temperatures of the system as well as the geometrical parameters of the two gratings. We show that the interplay between non-equilibrium effects and geometrical periodicity offers a rich scenario for the manipulation of the force. In particular, we find regimes where the force can…
Long-term health effects on the next generation of Ramadan fasting during pregnancy
2011
Each year, many pregnant women fast from dawn to sunset during the Islamic holy month of Ramadan. Medical theory suggests that this may have negative long-term health effects on their offspring. Building upon the work of Almond and Mazumder (2008), and using Indonesian crosssectional data, I show that people who were exposed to Ramadan fasting during their mother's pregnancy have a poorer general health and are sick more often than people who were not exposed. This effect is especially pronounced among older people, who, when exposed, also report health problems more often that are indicative of coronary heart problems and type 2 diabetes. The exposed are a bit smaller in body size and weig…
Le niveau de compétences de base peut-il expliquer le déclassement ou le surclassement sur le marché du travail ?
2013
Documents de travail de l'IREDU, n°2013-3; Cet article porte sur le lien entre le déclassement et le surclassement sur le marché du travail et les compétences de base qu'ont pu acquérir les individus au cours de leurs parcours scolaire et professionnel. En observant une certaine hétérogénéité des compétences de base par niveau de diplôme, nous faisons l'hypothèse que ces différences peuvent expliquer les situations de déclassement ou de surclassement. Nos travaux, à partir des données de l'enquête nationale " Information et Vie Quotidienne " (2004), montrent effectivement que les situations de déclassement (surclassement), pour un même niveau de diplôme, peuvent résulter d'un plus faible (f…
The relevance of corporate social responsibility for a sustainable human resource management: An analysis of organizational attractiveness as a deter…
2012
Corporate Social Responsibility (CSR) has become a central issue of business management in recent years. This study aims to add to the literature by pointing out the relevance of CSR for a Sustainable Human Resource Management (HRM). In particular this research investigates job seekers’ perceptions of CSR. The paper focuses on the importance of CSR with in the process of selecting potential employers by analyzing the impact of four different CSR-dimensions upon organizational attractiveness. To address this issue, a policy-capturing study was conducted. Generally the paper provides evidence that each aspect of CSR has a specific effect on organizational attraction. Referring to Sustainable …
Problemática laboral de los socios trabajadores de las empresas de Economía Social: ¿socios o trabajadores?
1999
Co-operatives and labour societies are the most important organisations within the framework of Social Economy. The establishment of these societies, which create employment in the private sector with a democratic philosophy based on mutual help, has been recently boosted thanks to the support of public power. Their growing importance can be explained by three factors: the Employment Policy, the Social Policy and the productive decentralisation. As far as labour is concerned, these societies offer the following advantages: intensive use of labour, high rate of stability in employment, high levels of productivity, training and surplus re-inversion, lower rate of inflation, fewer conflicts th…
Zvaigžņotā Debess: 2011, Vasara (212)
2011
Contents: “ZVAIGŽŅOTĀ DEBESS” FORTY YEARS AGO: A.Balklavs. Extremely Distant New Objects of Metagalaxy (abridged) ; Newspaper „Literaturnaja Rossija” 9 April 1971. Astronautics: Yesterday, Today, Tomorrow (abridged) ; CONFERENCE “The VIEW from SPACE. FIRST MANNED SPACE FLIGHT – 50”: M.Gills. Conference on the Eve of Human Space Flight Anniversary ; J.Ekmanis, S.Negrejeva. Mstislav Keldysh and Golden Age of Soviet Science ; T.Millers. Contribution of Scientists of the Institute of Inorganic Chemistry to the Development of Space Technologies and Materials ; G.Vilka. Remembrance of Friedrich Zander in Rīga ; O.Plepis. My Contribution to the Development of Space Medicine ; J.Stradiņš. Latvia’s …
La maitrise du français écrit par les primo-arrivants : : une analyse des performances productives par frontière stochastique
2014
International audience; Cet article vise à déterminer les facteurs susceptibles d'expliquer le niveau de maîtrise du français écrit par les primo-arrivants en âge de travailler, sachant que peu de recherches ont été réalisées en France à ce sujet. L'originalité de cet article réside dans l'estimation d'une frontière stochastique de production afin d'expliquer les scores en français écrit des primo-arrivants (considérés comme producteurs de leurs propres compétences) et leurs performances productives. Les principaux résultats mettent en avant que la langue maternelle, l'âge au moment de l'immigration, le diplôme de la mère et la vie sociale sont des éléments qui influencent l'efficacité de c…
Youth Transition from School to Work in Spain
2001
Using a data set drawn from the Encuesta Socio-Demográfica conducted by the Instituto Nacional de Estadística in 1991, we analyze the labor market entrance of Spanish school leavers and the match between education and work at the early stages of working life. The empirical evidence shows that human capital exerts a strong influence on the duration of unemployment. With regard to the job match between education and work we find that young workers are more likely to be underutilized compared to their adult co-workers. Regression results indicate that people with higher education have, all else being equal, a lower probability of being overeducated and a shorter lenght of unemployment. They al…
Fairness Considerations in Labor Union Wage Setting : A Theoretical Analysis
2012
We consider a theoretical model in which unions not only take the outside option into account, but also base their wage-setting decisions on an internal reference, called the fairness reference. Wage and employment outcomes and the shape of the aggregate wage-setting curve depend on the weight and the size of the fairness reference relative to the outside option. If the fairness reference is relatively high compared to the outside option, higher wages and lower employment than in the standard model will prevail. If hit by an adverse technology shock, the economy will then react with a stronger downward adjustment in employment, whereas real wages are more rigid than in the standard model. W…
Job Mobility and Sorting: Theory and Evidence
2019
Abstract Motivated by the canonical (random) on-the-job search model, I measure a person’s ability to sort into higher ranked jobs by the risk ratio of job-to-job transitions to transitions into unemployment. I show that this measure possesses various desirable features. Making use of the Survey of Income and Program Participation (SIPP), I study the relation between human capital and the risk ratio of job-to-job transitions to transitions into unemployment. Formal education tends to be positively associated with this risk ratio. General experience and occupational tenure have a pronounced negative correlation with both job-to-job transitions and transitions into unemployment, leaving the r…