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21.
Anne Hillairet de Boisferon Eve Dupierrix Paul C. Quinn Hélène Lœvenbruck David J. Lewkowicz Kang Lee Olivier Pascalis 《Infancy》2015,20(6):661-674
One of the most salient social categories conveyed by human faces and voices is gender. We investigated the developmental emergence of the ability to perceive the coherence of auditory and visual attributes of gender in 6‐ and 9‐month‐old infants. Infants viewed two side‐by‐side video clips of a man and a woman singing a nursery rhyme and heard a synchronous male or female sound track. Results showed that 6‐month‐old infants did not match the audible and visible attributes of gender, and 9‐month‐old infants matched only female faces and voices. These findings indicate that the ability to perceive the multisensory coherence of gender emerges relatively late in infancy and that it reflects the greater experience that most infants have with female faces and voices. 相似文献
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Olivier Bargain Mathias Dolls Herwig Immervoll Dirk Neumann Andreas Peichl Nico Pestel Sebastian Siegloch 《Economic inquiry》2015,53(2):1061-1085
This paper assesses the effects of U.S. tax policy reforms on inequality over around three decades, from 1979 to 2007. It applies a new method for decomposing changes in government redistribution into (1) a direct policy effect resulting from policy changes and (2) the effects of changing market incomes. Over the period as a whole, the tax policy changes increased income inequality by pushing up the income share of high‐income earners (the top 20%). (JEL H23, H31, H53, P16) 相似文献
24.
Consider a firm as an organization that needs to efficiently coordinate several specialized departments in an uncertain environment.
Decision making involves collective planning sessions and decentralized operational processes. In this setting this paper
explores the role of economic modeling through an experimental game. Results support the idea that economic modeling favors
higher performance. Economic modeling facilitates the emergence of common knowledge and the decomposition of a group decision
problem into individual decision problems that are meaningfully interrelated.
This paper was presented at the Porquerolles Summer School on Cognitive Sciences, September 2001. 相似文献
25.
Olivier Driessens 《Theory and Society》2013,42(5):543-560
This article proposes to redefine celebrity as a kind of capital, thereby extending Bourdieu’s field theory. This redefinition is necessary, it is argued, because one of the main limitations shared by current definitions of celebrity is their lack of explanatory power of the convertibility of celebrity into other resources, such as economic or political capital. Celebrity capital, or broadly recognizability, is conceptualized as accumulated media visibility that results from recurrent media representations. In that sense, it is a substantial kind of capital and not a subset or special category of social or symbolic capital, the latter being defined as legitimate recognition by other agents in a social field. Rather than adding another definition of celebrity next to many others, the notion of celebrity capital proposed here should be seen as an attempt to integrate the existing approaches of celebrity into a single comprehensive conceptualization that can enable us to grasp this societal and cultural phenomenon better. 相似文献
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ABSTRACT The analysis of a set of data consisting of N short (≤20 observations each) multivariate time series, where the observations are irregularly spaced and where observations for the different components of each multivariate series are observed at different times, is discussed. With the increased use of automatic recording devices in many fields, data such as these, which are of course samples from smooth response curves, are becoming more common. In this application, which was a clinical trial comparing two cements for use in hip replacement surgery, the key to the analysis was in recognizing that the interest lay in the degree to which the five curves representing a patient's vital signs deviated from baseline (i.e., normal for that patient) during surgery. This enabled the statisticians to define appropriate response variables. The analysis included Rosseeuw's (1984) technique for the identification of multivariate outliers and logistic regressions to identify any effects on the process producing the outliers due to treatment or covariates. 相似文献
28.
Telework is often considered to be a means for making life at work and at home more compatible. Why do some wage-earners, in particular white-collar employees, choose it? Do they actually make a choice or simply adopt a solution “for want of anything better” in an organizational context with its limitations? In this case, what factors do they weigh against each other? Once they have opted for telework, how do these white collars manage to adjust their occupational and family lives? Is their aspiration to improve the balance between the two satisfied? Or do they run up against unexpected difficulties? Answers to these questions come out of two studies conducted among white-collar employees in different sorts of telework. Given the absence of institutional regulations governing the relation between life at home and at work, telework, far from leading to a more balanced life, jeopardizes the organization’s collective efficiency. 相似文献
29.
Olivier Catelinois Dominique Laurier Pierre Verger Agnès Rogel Marc Colonna Marianne Ignasiak Denis Hémon Margot Tirmarche 《Risk analysis》2005,25(2):243-252
The increase in the thyroid cancer incidence in France observed over the last 20 years has raised public concern about its association with the 1986 nuclear power plant accident at Chernobyl. At the request of French authorities, a first study sought to quantify the possible risk of thyroid cancer associated with the Chernobyl fallout in France. This study suffered from two limitations. The first involved the lack of knowledge of spontaneous thyroid cancer incidence rates (in the absence of exposure), which was especially necessary to take their trends into account for projections over time; the second was the failure to consider the uncertainties. The aim of this article is to enhance the initial thyroid cancer risk assessment for the period 1991-2007 in the area of France most exposed to the fallout (i.e., eastern France) and thereby mitigate these limitations. We consider the changes over time in the incidence of spontaneous thyroid cancer and conduct both uncertainty and sensitivity analyses. The number of spontaneous thyroid cancers was estimated from French cancer registries on the basis of two scenarios: one with a constant incidence, the other using the trend observed. Thyroid doses were estimated from all available data about contamination in France from Chernobyl fallout. Results from a 1995 pooled analysis published by Ron et al. were used to determine the dose-response relation. Depending on the scenario, the number of spontaneous thyroid cancer cases ranges from 894 (90% CI: 869-920) to 1,716 (90% CI: 1,691-1,741). The number of excess thyroid cancer cases predicted ranges from 5 (90% UI: 1-15) to 63 (90% UI: 12-180). All of the assumptions underlying the thyroid cancer risk assessment are discussed. 相似文献
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