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151.
152.
Alexa F. Laurence Byron J. T. Morgan 《Australian & New Zealand Journal of Statistics》1987,29(2):113-127
The work of this paper is based on the innovative approach of Feigin et al. (1983), who estimate parameters of lifetime distributions by equating empirical and theoretical Laplace transforms. We show that the optimal choice of the transform variable depends critically upon the number of sampling times, the way they are spaced, and how the empirical transform is formed. Two new approaches for choosing the transform variable, viz. using cross-validation or constrained optimisation, are introduced and shown to have potential for wide-ranging use. 相似文献
153.
154.
Laurence Kranich 《Social Choice and Welfare》1996,14(1):57-64
In this paper, we extend the axiomatic analysis of equitable opportunities developed in Kranich [6] from finite to continuous
opportunity sets. This extended framework is amenable to economic applications. The main results establish conditions under
which an ordinal ranking of profiles of opportunity sets can be represented by a cardinal advantage function which describes both the extent of inequality and the distribution of advantage among the agents.
Received: 3 November 1993/Accepted: 18 December 1995 相似文献
155.
Laurence Buson Aurélie Nardy Isabelle Rousset Chenxi Zhang 《Journal of Sociolinguistics》2023,27(4):384-401
This article explores the question of style in a school community, through negation use among the adults and children in a French preschool. Thirteen adults and 61 pupils aged 3–6 years were followed over a period of 2.5 years. The findings draw on a corpus of oral data collected in an unsupervised manner and comprising almost 640,000 transcribed words (428,100 for the children and 210,241 for the adults). The findings show, on the one hand, that the teachers adapt stylistically to their interlocutors and that their professional stance leads to more formal speech and, on the other hand, that the children's use of bipartite negation is marginal before the age of 6 years and does not present notable stylistic variations. 相似文献
156.
Megan W. Patterson Lilla Pivnick Frank D. Mann Andrew D. Grotzinger Kathryn C. Monahan Laurence D. Steinberg Benjamin Oosterhoff Jennifer L. Tackett Elliot M. Tucker-Drob K. Paige Harden 《Journal of research on adolescence》2023,33(2):680-700
Adolescence is a peak period for risk-taking, but research has largely overlooked positive manifestations of adolescent risk-taking due to ambiguity regarding operationalization and measurement of positive risk-taking. We address this limitation using a mixed-methods approach. We elicited free responses from contemporary college students (N = 74, Mage = 20.1 years) describing a time they took a risk. Qualitative analysis informed the construction of a self-report positive risk-taking scale, which was administered to a population-based sample of adolescents (N = 1,249, Mage = 16 years) for quantitative validation and examination of associations with normative and impulsive personality. Sensation seeking predicted negative and positive risk-taking, whereas extraversion and openness were predominantly related to positive risk-taking. Results provide promising evidence for a valid measure of adolescents' engagement in positive risks. 相似文献