Confidence Intervals for Current Status Data

Abstract.  The likelihood ratio statistic for testing pointwise hypotheses about the survival time distribution in the current status model can be inverted to yield confidence intervals (CIs). One advantage of this procedure is that CIs can be formed without estimating the unknown parameters that figure in the asymptotic distribution of the maximum likelihood estimator (MLE) of the distribution function. We discuss the likelihood ratio-based CIs for the distribution function and the quantile function and compare these intervals to several different intervals based on the MLE. The quantiles of the limiting distribution of the MLE are estimated using various methods including parametric fitting, kernel smoothing and subsampling techniques. Comparisons are carried out both for simulated data and on a data set involving time to immunization against rubella. The comparisons indicate that the likelihood ratio-based intervals are preferable from several perspectives.     

从学生的视角看农村教师的专业发展

教师专业化成长已是当今世界教师教育的主潮流,是各国教育共同关注的焦点问题之一。在调查研究的基础上,从学生的视角对农村教师的专业发展现状进行分析,就促进农村中小学教师专业成长的内容和策略进行理论探讨,是农村教育发展研究的一个课题。     

论动物法律地位

动物权利论或者动物主体论是一个时髦的话题。保护动物是否意味着要赋予动物权利或者将动物上升为法律主体?动物权利论或动物主体论在理论和实践中是否站得住脚?针对以上问题,笔者认为动物权利论和动物主体论在理论与实践中均存在无法克服的障碍,动物在法律上仍应当作为特殊物、特殊的权利客体来看待,并提出我国的立法中动物法律地位的应有定位。     

Semiparametric linear transformation models for current status data

Current status data arise when the death of every subject in a study cannot be determined precisely, but is known only to have occurred before or after a random monitoring time. The authors discuss the analysis of such data under semiparametric linear transformation models for which they propose a general inference procedure based on estimating functions. They determine the properties of the estimates they propose for the regression parameters of the model and illustrate their technique using tumorigenicity data.     

Dimensions of occupational inequality and Duncan's socioeconomic index

Using the original 1962 Blau and Duncan data for white males, I compare relative amounts of inequality in the distributions of occupational prestige, earnings, autonomy, and job skills. Also assessed are the degree of status rigidity (or intercorrelations) among these four dimensions of occupational inequality and the simultaneous relations among these four dimensions in a father-to-son occupational mobility model. These findings are compared to those obtained with Duncan's socioeconomic index to determine whether additional information can be obtained when using independent measures representing the multiple dimensions of occupational inequality versus using the SEI alone. Only minor discrepancies are found, and these relate to autonomy and earnings.An earlier version of this paper was presented at the 1985 Pacific Sociological Association meetings.     

基于“学习领导”理念的幼教名师工作室建设现状与对策

：强调以学习为核心的学习领导为理解与支持幼儿园教师学习与专业发展提供了一种全新的、系统的视角。在学习领导 理念下,幼教名师工作室应积极构建发展愿景;坚持持续对话,产生共识行动;引导建立安全、鼓励尝试的氛围;发挥行政力量 构建和完善幼教名师工作室运行机制。     

珠江三角洲文化形态论纲

珠江三角洲文化形态的性质是务实求利;其特征是商业俗文化;其结构由岭南文化、中原文化、港澳文化和西方文化四因素构成;其地位是有中国特色的社会主义新文化的“曙光”,是中华民族大一统文化的“中介”。     

独立学院文化现状及改进对策

大学文化是大学所有成员在历史时间内创造的精神财富和物质财富的总和。而独立学院文化的现状是文化不够鲜明、完整、深厚,因此,独立学院需要从文化培育、文化落实、文化传承、文化创新等方面加以改进。     

Attitudes of Heterosexual Men and Women Toward HIV Negative and Positive Gay Men

Attitudes of Italian heterosexual men and women toward gay men, both HIV positive and negative, are poorly investigated. Italian culture is still extremely conservative and provides limited support to the gay community (e.g., lack of same-sex marriage recognition). Consequently, gay men experience social exclusion and disparities. The present study explores the association between homophobia and closeness with sexual orientation and HIV status. 261 heterosexual Italian men and women were assessed for feelings of closeness and homophobia after reading a vignette where the character was C1: heterosexual and HIV negative; C2: gay and HIV negative; or C3: gay and HIV positive. Experiences of homophobia and closeness varied depending on gender of participant and condition assigned, and higher levels of homophobia were correlated with lower levels of closeness regardless of HIV status. Implications and future directions are discussed.     

秦国赘婿法律地位辨疑

秦国赘婿法律地位并非一直低下。秦立法剥夺其立户、受田宅等权利,强制其从军,始于秦统一六国后,直接原因为军事需要,深层次原因为文化认同、政治合法性建构的需要。