Motives for coprophilia: Working with individuals who had been institutionalized with developmental handicaps

A condom skills educational program emphasizing how to use a condom was presented to groups of patients waiting to be seen in a public health sexually transmitted disease clinic. Compared to controls, patients exposed to the intervention were approximately half as likely to return within the subsequent 12 months with a new sexually transmitted disease. Other predictors of reinfection included previous infection and age less than 25.     

莫友芝旧藏善本流散海外地区考述

莫友芝是我国近代史上著名的藏书家，其一生藏书无数。寓居江南期间，莫友芝大力搜寻江淮及吴越等地的遗书，因此莫氏的藏书在当时是富甲一方的。但是莫友芝去世后莫氏家族开始衰落，莫友芝的旧藏书籍大量流散，不少善本甚至流散到海外地区。本文试图通过藏书印及相关途径，查找莫友芝散落在海外的旧藏书，以期为研究莫友芝提供些许方便。     

怀宁牛灯戏的传承现状及保护对策

牛灯戏是安庆怀宁地区独有的稀见戏曲剧种,2010年被安庆市人民政府列入安庆市第二批非物质文化遗产名录。面对社会转型期所带来的诸多问题,包括牛灯戏在内的稀见戏曲剧种普遍生存状况不佳。基于实地调查,文章从非物质文化遗产的角度关注和考察怀宁牛灯戏:梳理其历史渊源,总结其文化功能,分析其传承现状,在此基础上提出相应的保护对策。以期对安徽省稀见戏曲剧种的传承和保护路径进行初步探讨,为研究安徽区域文化的特殊性和促进地域文化和谐发展提供更多资料。     

黄煌教授学术思想述要

黄煌教授是知名中医学者,对中医学许多问题都有独到见解。通过对黄教授在行医理念、仲景学说的治学观、体质辨证、辨证精神、中医学的定位和学习等方面进行论述,冀以全面反映其学术思想。     

催渗奥氏体氮碳共渗的研究

本文离对铁丝，２０，４５，４０Ｃｒ采用不同温度不同催渗剂进行了奥氏体气体，固体氮碳共渗的的研究，并对试样进行了金相分析，硬度测定，电子探针成分分析。结果表明，在７２０℃以下进行催渗奥氏体氮碳共渗，渗层深度，硬度啬显著；氮碳共渗后快冷，在渗层获得马氏体组织。     

辽宁稀土产业发展的战略思考

指出由于稀土资源在传统产业和新型产业中的大量应用而决定了它在国民经济中的重要地位。分析了辽宁稀土产业的沿革、发展现状,展望了辽宁稀土产业发展的未来前景。提出了引导稀土产业向高水平、规模化发展,实现强强联合,组建高新技术企业,以发展第三代永磁材料钕铁硼为核心,把稀土发光、荧光材料作为特色,进而形成产业链,以带动全省稀土行业的整体发展,以及把上下游对接作为未来稀土产业发展的重点,促进科研、生产有机结合,建立完善的稀土市场信息引导机制的战略设想。     

稀土铈对AZ91D镁合金组织及力学性能的影响

研究了稀土Ce对AZ91D合金组织及力学性能的影响.实验表明,随着加入Ce的量从0.2%到0.8%变化,AZ91D合金铸态晶粒逐渐由大变小,β-Mg17Al12相弥散分离,稀土Ce的这种细化组织的作用可以改善AZ91D镁合金的力学性能.但稀土添加量较高时,会使组织中出现明显的针状的β-Mg17Al12相,反而使镁合金的力学性能恶化.铈有提高AZ91D镁合金抗拉强度的作用,但对延伸率影响较小.当加入Ce量0.8%时性能最佳,抗拉强度达到最大,为185 MPa,延伸率为4%,是一个较好的性能组合.     

Estimation of a rare sensitive attribute in a stratified sample using Poisson distribution

This study proposes the estimators for the mean and its variance of the number of respondents who possessed a rare sensitive attribute based on stratified sampling schemes (stratified sampling and stratified double sampling). This study deals with the extension of the estimation reported in Land et al. [Estimation of a rare sensitive attribute using Poisson distribution, Statistics (2011), in press. DOI: 10.1080/02331888.2010.524300] using a Poisson distribution and an unrelated question randomized response model reported in Greenberg et al. [The unrelated question randomized response model: Theoretical framework, J. Amer. Statist. Assoc. 64 (1969), 520–539]. In the stratified sampling, the estimators are proposed when the parameter of the rare unrelated attribute is known and unknown. The variances of estimators using a proportional and optimum allocation are also suggested. The proposed estimators are evaluated using a relative efficiency comparing variances of the estimators reported in Land et al. depending on the parameters and the probability of selecting a question. We showed that our proposed methods have better efficiencies than Land et al.’s randomized response model in some conditions. When the sizes of stratified populations are not given, other estimators are suggested using a stratified double sampling. For the proportional allocation, the difference between two variances in the stratified sampling and the stratified double sampling is given with the known rare unrelated attribute.     

A parametric approach for measuring the effect of the 10th revision of the international classification of diseases

Summary.  The World Health Organization revises the international classification of diseases about every 10 years to stay abreast of advances in medical science and to compare international health statistics. However, the new revision (i.e. the 10th revision) introduces discontinuities in mortality trends, making it impossible to compare the mortality statistics before and after the revision directly. The US National Center for Health Statistics published comparability ratios to correct the discontinuities between the two sets of mortality data: one coded by the ninth revision and the other by the 10th revision. We propose a parametric two-stage model to produce new comparability ratios and use these ratios to correct the discontinuities. The asymptotic behaviour of the comparability ratios is investigated. Our model not only measures the extent of discontinuities in trends in mortality but also can be used to forecast future mortality. Comparing with the National Center for Health Statistics's ratios, our comparability ratios smooth out the discontinuities better for most causes.