Commercial sex between men: A prospective diary‐based study

This paper describes the results of a self‐reporting dairy completed by 186 male sex workers (MSWs) over a 2‐week period in Brisbane, Sydney, and Melbourne, Australia. The diary was completed following each commercial sex encounter by the MSW. The results reveal that MSWs reported 2088 commercial sex encounters during the study period, with an average of 11.2 encounters per MSW. The majority of sex encounters took place in either the client's or the MSW's residence, with significant variations by city. The average sexual encounter lasted 70 minutes, and comprised two sexual acts, masturbation and oral sex. Condom use was reported in 67.4% of all the encounters. Using the AIDS Council safe‐sex classification system, the majority of the commercial sex encounters fell in the “safer sex” category; however, there were significant differences by source of clients and place of the encounter. Use of drugs and alcohol reveal interesting patterns: Clients were more likely to use alcohol, while MSWs had significant differences of usage of the different drugs. This study demonstrates that the majority of MSWs are offering and practicing safe sex behaviours, however, MSWs working in the street setting are still likely to be practising unsafe sex. Male sex work is becoming an organised business and this provides opportunities to implement further public health interventions.     

Influence analysis in multivariate linear general models

In this paper we obtain several influence measures for the multivariate linear general model through the approach proposed by Muñoz-Pichardo et al. (1995), which is based on the concept of conditional bias. An interesting charasteristic of this approach is that it does not require any distributional hypothesis. Appling the obtained results to the multivariate regression model, we obtain some measures proposed by other authors. Nevertheless, on the results obtained in this paper, we emphasize two aspects. First, they provide a theoretical foundation for measures proposed by other authors for the mul¬tivariate regression model. Second, they can be applied to any linear model that can be formulated as a particular case of the multivariate linear general model. In particular, we carry out an application to the multivariate analysis of covariance.     

技术、民俗学与现代性的他者

本文以作者在田野经历中对现代记录技术的反思为切入点,考察了民俗学在欧美的兴起与现代化过程,特别是现代科技和机械复制技术的内在联系.一方面,现代机器和技术取代了手工制作与技艺,印刷术普及了书面文字,这使传统生活方式在冲击中成为留恋与怀旧的对象,成为现代性的他者,催生了民俗学学科的诞生;另一方面,现代录音、照相、录像技术克服了视觉和听觉的瞬间性,使稍纵即逝的声音和场景得以固定为可捕捉之物,成为反思的对象,使民俗学研究得以深入展开.     

水与彩的魅力陈述——毛得墚画作印象

毛得墚(德良),1962年生人,辽宁省东港市人,1985年毕业于鲁迅美术学院美术教育系,中国美协会员、辽宁省美协理事、辽河画院专职画家。作品多次获奖,其中水彩画作《倾城乐》获第二届中国美术金彩奖,《瓷盘与干鱼》入选中国水彩百年画展,《苍宇永恒》获首届中国美术创作奖及第十一届全国美展优秀奖。多幅作品被中国美术馆和上海刘海粟美术馆等机构收藏。     

王兆胜的散文研究及其散文批评观

王兆胜的散文研究具有起衰振弊的作用,其散文批评有敏锐独特的艺术感受力,平淡宽容的个性化批评风格,飞扬灵动准确精彩的语言;其散文理论研究有深刻鲜明的问题意识,开阔的研究视野,努力进行“史”的建构,致力于走科学、规范、严谨、创新的散文研究之路。王兆胜秉承以自然为本位的文学观及“尽善尽美”的批评观。     

物质：马克思主义哲学的独特关注

文章认为哲学在探讨世界本源问题时所涉及的广阔研究范围与一定历史时期人们有限的知识水平和认知能力的矛盾一直是困扰哲学发展的一个十分重大的矛盾.马克思以往的哲学都因过多地关注于他们当时认识能力所达不到的虚无缥缈的宇宙从而难以摆脱半科学半假想的状况.马克思主义哲学立足于物质,关注于我们认识能力所能达到的这个有限的空间,从而有效地解决了这一困扰哲学发展的矛盾,使其哲学成为能够被实践所加以证明的科学.     

How race affects dismissals of college football coaches

We employ a discretetime hazard model and a Blinder-decomposition approach to explore the possibility of racial discrimination in the dismissal and retention of college football coaches by university administrations. A rich data set consisting of 81 institutions over an 11-year period (1990–2000) that contains, in addition to a coach's race, variables on cumulative winning records, annual on-the-field improvements, and pre-/post-season game participation by institutions and their coaches is employed. Our study finds that black coaches, on average, face a dismissal probability that is 9.6 percentage points below that of their nonblack counterparts, ceteris paribus, suggesting that black head coaches may be the beneficiaries of favorable treatment by university administrators. Such a result likely stems from universities ' approach to social concerns involving race and gender issues. This finding also fits a construct that considers workplace discrimination as multi-dimensional. For example, black representation in the college football coaching ranks may be disproportionately low, possibly as a result of discrimination. However, once hired, black coaches are given more time to succeed than nonblacks, other things constant.     

15-谜问题的可达性判定

定义了15-谜问题的6个动作规则,在此基础上证明了15-谜问题解的存在性判定的充分必要条件,其充分性的证明过程是一个构造性证明方法,提供了求解15-谜问题的一个解的可实现算法;同时,对此结论进行了扩展,对于给定的一初始格局和任一目标格局,证明了初始格局可达目标格局的的充分必要条件,其结论有助于构造问题的状态空间与限界函数。这两个结论从理论上完全解决了15-谜问题,对获得最优算法提供了理论基础。     

可视性动态模拟在计算机辅助教学中的应用

采用VB、ACCESS和FIREWORKS,开发了一个可视性动态模拟软件。该系统可以演示《数据结构》中《树和二叉树》中树的遍历过程。首先介绍《数据结构》的课程特点及该软件系统目标,然后进行软件设计,最后分析在此设计过程中所涉及到的一些问题及解决方案。     

B染色体

(B染色体)超数染色体,是存在于许多有机体中的额外染色体及染色体断片。B染色体有特殊的性状和行为,在基因组进化中起了重要作用。本文对其起源、进化及其特性进行了较为全面的概述,希望为进一步研究提供参考。