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71.
Philippe Poutignat 《Sociologie du Travail》2004,46(3):309
On-the-job racism is studied in the case of a public transportation firm that has to cope with insecurity in an urban area. In this company, the labor union has related security and racism in order to definitively integrate young persons hired to do “mediation work”. Eliminating this work from the list of jobs has had two positive effects; it avoids the risk of an “ethnic professionalization” and grants legitimacy to the relational know-how linked to the origins of young wage-earners. The option of labor union members in the firm did curb the escalation of conflicts between transportation personnel and young people in housing projects. 相似文献
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73.
Philippe Hartemann 《Risk analysis》2011,31(2):228-236
This article reports a quantitative microbial risk assessment of the risk of Giardia and Cryptosporidium in very small private water supplies. Both pathogens have been implicated in causing outbreaks of waterborne disease associated with such supplies, though the risk of endemic disease is not known. For exposure assessments, we used existing data to derive regression equations describing the relationships between the concentration of these pathogens and Escherichia coli in private water supplies. Pathogen concentrations were then estimated using national surveillance data of E. coli in private water supplies in England and France. The estimated risk of infection was very high with the median annual risk being of the order of 25–28% for Cryptosporidium and 0.4% to 0.7% for Giardia, though, in the poorer quality supplies the risk could be much higher. These risks are substantially greater than for public water supplies and well above the risk considered tolerable. The observation that observed infection rates are generally much lower may indicate increased immunity in people regularly consuming water from private supplies. However, this increased immunity is presumed to derive from increased disease risk in young children, the group most at risk from severe disease. 相似文献
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76.
Antoine Echelard Jacques Lévy Véhel Anne Philippe 《Scandinavian Journal of Statistics》2015,42(2):485-503
Self‐regulating processes are stochastic processes whose local regularity, as measured by the pointwise Hölder exponent, is a function of amplitude. They seem to provide relevant models for various signals arising for example in geophysics or biomedicine. We propose in this work an estimator of the self‐regulating function (that is, the function relating amplitude and Hölder regularity) of the self‐regulating midpoint displacement process and study some of its properties. We prove that it is almost surely convergent and obtain a central limit theorem. Numerical simulations show that the estimator behaves well in practice. 相似文献
77.
Philippe Aghion Yann Algan Pierre Cahuc 《Journal of the European Economic Association》2011,9(1):3-42
In a cross‐section of countries, state regulation of labor markets is negatively correlated with the quality of labor relations. In this paper, we argue that these facts reflect different ways of regulating labor markets, either through the state or through the civil society, depending on the degree of cooperation in the economy. We rationalize these facts with a model of learning of the quality of labor relations. Distrustful labor relations lead to low unionization and high demand for direct state regulation of wages. In turn, state regulation crowds out the possibility for workers to experiment negotiation and learn about the potential cooperative nature of labor relations. This crowding out effect can give rise to multiple equilibria: a “good” equilibrium characterized by cooperative labor relations and high union density, leading to low state regulation; and a “bad” equilibrium, characterized by distrustful labor relations, low union density, and strong state regulation of the minimum wage. 相似文献
78.
Philippe Lasserre 《Long Range Planning》1982,15(3):51-60
The purpose of this article is to present the results of an analysis of various cases of technology transfer involving European companies in the Asian region in the chemical and pharmaceutical sector in order to pinpoint the major source of problems. Based on these results, the paper then focuses on one particular aspect of the process of technology transfer—the training—in order to draw some practical implications for companies involved in technology transfer. 相似文献
79.
This paper presents two-sample statistics suited for testing equality of survival functions against improper semi-parametric accelerated failure time alternatives. These tests are designed for comparing either the short- or the long-term effect of a prognostic factor, or both. These statistics are obtained as partial likelihood score statistics from a time-dependent Cox model. As a consequence, the proposed tests can be very easily implemented using widely available software. A breast cancer clinical trial is presented as an example to demonstrate the utility of the proposed tests. 相似文献
80.
Sergiu Hart Andreu Mas‐Colell 《Econometrica : journal of the Econometric Society》2000,68(5):1127-1150
We propose a new and simple adaptive procedure for playing a game: ‘regret‐matching.’ In this procedure, players may depart from their current play with probabilities that are proportional to measures of regret for not having used other strategies in the past. It is shown that our adaptive procedure guarantees that, with probability one, the empirical distributions of play converge to the set of correlated equilibria of the game. 相似文献