Estimation of relaxation time distributions in magnetic resonance imaging

Magnetic resonance imaging techniques can be used to measure some biophysical properties of tissue. In this context, the T₂ relaxation time is an important parameter for soft‐tissue contrast. The authors develop a new technique to estimate the integral of the distribution of T₂ relaxation time without imposing any constraint other than the monotonicity of the underlying cumulative relaxation time distribution. They explore the properties of the estimation and its applications for the analysis of breast tissue data. As they show, an extension of linear discriminant analysis is found to distinguish well between two classes of breast tissue.     

从法国看日本民俗(民族)学

本文作者自1972年开始接触日本民俗学,不断来往于法国和日本之间的独特研究经历,让作者在本文中形成内外交织的理论视角.本文首先介绍了日本民俗学自建立之初以来的理论基础、主要范围和重大问题,然后从个人的研究经验出发,解释这一学科的实践内容,以及国际合作方式对研究带来的影响.最后,本文再次思考了人类学中重要的"主位"和"客位"概念,"主位"和"客位"问题不仅是日本民俗学面临的问题,也是民俗学和人类学共同面对的理论问题.     

‘WORK FOR THE DOLE’ – A CHEAP LABOUR MARKET PROGRAM? AN ECONOMIST'S PERSPECTIVE

From an economists perspective, this paper explores some of the issues associated with the design of an effective labour market program, and evaluation processes which are required to determine the merits of a scheme. This analysis comes at the time when pilot projects under the federal Government's ‘Work for the Dole’ scheme are being implemented. The paper concludes that if the ‘Work for the Dole’ scheme is to be viewed as a labour market program, then an evaluation mechanism should have been determined prior to the implementation of such a scheme.     

Entwickeln im Team – Effekte für den Einzelnen

This study tested the effects of a 2-day team building intervention on team members’ team identification, social support and collective self-efficacy. Members (n?=?32) of three teams from different sectors completed questionnaires before, directly after and six weeks after the team building intervention. Two teams served as control groups. Results showed lasting positive effects of team building on identification, support and collective self-efficacy in the training groups but no changes in the control groups.     

A still,small voice: Letter‐writing,testimony and the project of address in Etty Hillesum's letters from Westerbork

Abstract

This paper derives from an exploration of the ways in which the letters of Holocaust writer Etty Hillesum, which are seemingly resistant to many of the interests of current trauma theory, can be read in relation to contemporary writing on testimonial. In particular, the three theorists I shall discuss here, Derrida, Caruth and Irigaray, directly address Freud's Beyond the Pleasure Principle, a central text in the current refiguring of trauma. This paper traces the ways in which Hillesum's letters can be read across the theoretical accounts. An interpretation of Hillesum's writing emerges in which the conventional emphasis on the mystical aspect of her texts is reinterpreted in terms of Caruth's emphasis on the life drive. Viewed as forging a creative language of departure, Hillesum's letters are situated in a central relation to the most recent developments in the theoretical discourse around testimony.     

Internet Poker Websites and Pathological Gambling Prevention Policy

Despite the widespread increase in online poker playing and the risk related to excessive poker playing, research on online poker websites is still lacking with regard to pathological gambling prevention strategies offered by the websites. The aim of the present study was to assess the pathological gambling-related prevention strategies of online poker websites. Two keywords (“poker” and “poker help”) were entered into two popular World Wide Web search engines. The first 20 links related to French and English online poker websites were assessed. Seventy-four websites were assessed with a standardized tool designed to rate sites on the basis of accountability, interactivity, prevention strategies, marketing, and messages related to poker strategies. Prevention strategies appeared to be lacking. Whereas a substantial proportion of the websites offered incitation to gambling such as betting “tips,” few sites offered strategies to prevent or address problem gambling. Furthermore, strategies related to poker, such as probability estimation, were mostly reported without acknowledging their limitations. Results of this study suggest that more adequate prevention strategies for risky gambling should be developed for online poker.