教育与经济增长

本文首先回顾了近年来关于经济增长影响因素的文献,特别探讨了教育在其中的作用。然后,估计了一个关于增长的综合模型,并就其稳健性进行了跨国检验。最后,据此得出了政策性建议。     

如何为孩子制定有效的行为准则——推荐《做称职的父母》

这是一本教您怎样才能尽到父母应尽的责任的书,本刊摘编其中一章,希望通过讲述如何为孩子制定行为准则的观点,在家教实践方面给予您一定的启示。     

“亲爱的读者”和“无聊的作者”——乔伊斯在《为芬尼根守灵》中对读者的直呼

自中世纪以来没有一部重要文学作品象乔伊斯的《为芬尼根守灵》(以下简称《守灵》译者注)那样令读者望而却步.意识到理解该书文本的难度,乔伊斯希望并真诚期待苦于理想失眠症的理想读者愿意拿出足够的时间来欣赏本书关大脑在夜间的活动情况(正如《尤里西斯》把注意力放在白大的意识流上一样).与十八世纪小说家如出一辙,乔伊斯在《守灵》中频频直呼其读者——建议、哄骗、嘲弄这些忙忙碌碌的失眠者.这是该书获得较少注意的重要方面.从整体上看,乔伊斯与读者的对话象是一本有趣的善意的阅读指南,对《守     

键级和化合价的分子轨道理论

本文译自美国《Journal of chemical Education》1988年第8期.作者简介了密立根布居数分析法,并以此为基础讨论了键级和化合价,应用了别致的原子轨道线性组合分子轨道理论(LCAO—MO)的矩阵公式.最后给出了一些简单分子的计算结果,以说明这个理论的应用.     

Proteiomic patterns for endometrial cancer using SELDI-TOF-MS

Serum samples from endometrial cancer (EC) patients and healthy females were analyzed using surface-enhanced laser desorption-ionization time-of-flight mass spectrometry (SELDI-TOF-MS) to discover the potential diagnostic biomarker for detection of EC. A preliminary training set of spectra derived from 40 EC patients and 30 healthy women were used to develop a proteomic model that effectively discriminated cancer patients from healthy women. The training set had a specificity of 100% and sensitivity of 92.5% in the EC detection. A blind test set, including 20 new cancer cases and 10 healthy women, was used to validate the sensitivity and specificity of this multivariate model, which had a corresponding results of 60% in specificity and 75% in sensitivity, respectively. The combination of SELDI-TOF-MS with bioinformatics tools could help find new biomarkers and establish the detection of EC with high sensitivity and specificity.     

Tutoring deaf students in higher education: a comparison of baccalaureate and sub-baccalaureate student perceptions

Seventy-three deaf college students completed a survey examining perceptions about tutoring outcomes and emphases, characteristics of tutors, and responsibilities associated with learning through tutoring. The comparisons revealed that while baccalaureate and sub-baccalaureate students have many similar perceptions about tutoring, there are also some striking differences. In particular, as compared to the sub-baccalaureate students, baccalaureate students have a stronger preference for focusing on course content and for working with tutors who actively involve them during the tutoring sessions. In addition, baccalaureate students prefer to decide the focus of the tutoring themselves while sub-baccalaureate students tend to leave the decision to the tutor. The results of the analyses with three scales measuring perceptions of tutoring dimensions are summarized and recommendations for the selection and preparation of tutors, as well as for future research, are provided.     

A national survey of social work services in schools for the deaf

The purpose of the present study was to determine the role of school social workers and the services they deliver in schools for the Deaf. A 15-item survey was sent to 101 schools for the Deaf in the United States. The survey consisted of questions relating to personal characteristics, work experience, and job responsibilities of school social workers. A 72% response rate was obtained. Results suggest that, in general, social workers in schools for the Deaf perform functions similar to those of other social workers. However, social workers in schools for the Deaf tend to handle more health and financial concerns of students and their families. Social workers in schools for the Deaf lag behind other school social workers in professional training. Approximately a quarter of the surveyed social workers were deaf or hard of hearing.     

史努比

~~史努比@查尔斯·M·舒尔茨(charles M.Schulz)