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981.
The idea that a child should not have sexual interests and experiences is fast being supplanted by the knowledge that he does have them; that they are an expression of perfectly normal, healthy energies, and that while it is necessary to gain control over them, they should not be forcibly suppressed” ( Renz & Renz 1935 : 92). 相似文献
982.
The authors report on the frequency and nature of alcohol advertisements in a representative sample of college newspapers from 1984/85 and compare these with results of a similar study conducted 7 years earlier, in 1977/78. On average, nearly 24 column inches of space per issue were devoted to national alcohol advertisements in 1984/85. This represents a significant decrease from an earlier period. The space devoted to national alcohol advertisements, however, still far exceeded that for comparison products (books, soft drinks). Local alcohol advertisements averaged 20 column inches per issue and were somewhat more frequent than in the previous study. The content of the advertisements differed markedly from the messages presented 7 years earlier. Although national alcohol advertisements in 1977/78 frequently ridiculed education and study, none did so in 1984/85, when appeals were to taste and product quality instead. Fantasy themes also were relatively common. Very few national alcohol advertisements featured athletes or group drinking. Sponsorship of campus activities by the alcohol industry, however, had increased since the earlier study. In contrast to national advertisements, many local advertisements consisted of inducements to drink through special offers and happy hours. Some encouraged irresponsible and heavy drinking. Interestingly, alcohol advertisements were just as frequent in papers from states with higher minimum drinking ages and were more frequent in papers from campuses with higher proportions of women students. 相似文献
983.
文章首先对大学物理的设计性实验提出了一些构想和改革建议;然后就现代教育技术与大学物理实验整合提出了一些改革措施,一方面要丰富网络资源,另一方面对开发和开设部分仿真性实验提出一些建议;最后对大学物理实验的考试提出了一些建议. 相似文献
985.
David A. Campbell 《Nonprofit management & leadership》2008,19(2):221-241
This article explores the decision‐making process nonprofit organizations use to determine whether to pursue merger or other forms of interorganizational restructuring. The research uses a case study design, analyzing four examples of interorganizational restructuring. The findings describe both the structure and the characteristics of the processes used in four cases. The research found that the decision‐making processes used in the four cases had several core elements. Participants in restructuring customized decision‐making processes to meet their needs, and power dynamics shaped those processes. Findings about the characteristics of the process emphasize the importance of communication and trust. How partners used power affected the decision‐making process and had implications for postmerger success. Decision‐making processes for cases involving two partners exhibited characteristics that were different from those involving multiple partners. Future research should consider the role of trust in restructuring decisions and the responsibilities of board and staff in the restructuring assessment process. 相似文献
986.
Parent and sibling influences on children's development of conflict management strategies were examined. Data consist of naturally occurring, in‐home sibling disputes of 37 families at two time points. The siblings were approximately two and four years old at Time 1, and four and six years old at Time 2. Parents' and children's use of conflict strategies that reflect proactive autonomy assertions such as opposition and verbal and physical power were the focus of the current study. Results suggest that parents and siblings play an important role in shaping children's conflict behaviours over time. For instance, parents' reliance on unelaborated opposition to the child, and older siblings' increased use of physical power predicted decreases in younger siblings' ability to assert themselves during conflict. In addition, increased proportions of opposition from a younger sibling was associated with the older siblings using less verbal aggression and using more mature conflict strategies such as justifying their own behaviour to their younger sibling. As sibling conflict is a salient child rearing concern for parents, practical implications are discussed. 相似文献
987.
Fabien Gagnon Mathieu Courchesne Benoît Lévesque Pierre Ayotte Jean‐Marc Leclerc Jean‐Claude Belles‐Isles Claude Prévost Jean‐Claude Dessau 《Risk analysis》2008,28(5):1221-1230
The present study was aimed at assessing the health consequences of the presence of radon in Quebec homes and the possible impact of various screening programs on lung cancer mortality. Lung cancer risk due to this radioactive gas was estimated according to the cancer risk model developed by the Sixth Committee on Biological Effects of Ionizing Radiations. Objective data on residential radon exposure, population mobility, and tobacco use in the study population were integrated into a Monte‐Carlo‐type model. Participation rates to radon screening programs were estimated from published data. According to the model used, approximately 10% of deaths due to lung cancer are attributable to residential radon exposure on a yearly basis in Quebec. In the long term, the promotion of a universal screening program would prevent less than one death/year on a province‐wide scale (0.8 case; IC 99%: –3.6 to 5.2 cases/year), for an overall reduction of 0.19% in radon‐related mortality. Reductions in mortality due to radon by (1) the implementation of a targeted screening program in the region with the highest concentrations, (2) the promotion of screening on a local basis with financial support, or (3) the realization of systematic investigations in primary and secondary schools would increase to 1%, 14%, and 16.4%, respectively, in the each of the populations targeted by these scenarios. Other than the battle against tobacco use, radon screening in public buildings thus currently appears as the most promising screening policy for reducing radon‐related lung cancer. 相似文献
988.
Asymptotic expansions for the null distribution of the logrank statistic and its distribution under local proportional hazards
alternatives are developed in the case of iid observations. The results, which are derived from the work of Gu (1992) and
Taniguchi (1992), are easy to interpret, and provide some theoretical justification for many behavioral characteristics of
the logrank test that have been previously observed in simulation studies. We focus primarily upon (i) the inadequacy of the
usual normal approximation under treatment group imbalance; and, (ii) the effects of treatment group imbalance on power and
sample size calculations. A simple transformation of the logrank statistic is also derived based on results in Konishi (1991)
and is found to substantially improve the standard normal approximation to its distribution under the null hypothesis of no
survival difference when there is treatment group imbalance.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
989.
吕客 《东华理工学院学报》2008,27(1)
悲恋诗、悲怨诗、弃妇诗和悼亡诗是中国古典悲情诗的四种形态,完整地构成了表现古代爱的悲情的审美价值和文化意蕴。通过分析四个形态来审视中国古代悲情文化的审美内涵,透视中国古代女性对爱情的执着追求和她们的凄凉命运。 相似文献
990.
吕海峰 《河北理工大学学报(社会科学版)》2008,8(1):148-151
预设是以隐含的方式内嵌于句子或语段之中的无须断言的信息或命题.文学作品以精准简练为要旨,力求以最少的文字传达最多的信息,遂有"浓缩的才是精华的"的一说.预设由于其精简已知信息等功能而对文学篇章的浓缩具有突出的作用.无论是小说、散文还是诗歌,预设在文学篇章中俯拾皆是.从预设的共知性、英汉句式和中国古诗词等三个方面可以揭示并解释预设同文学篇章的浓缩之间的密切联系. 相似文献