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171.
Scientific research car for scientific purposes. As such, scientific research will necessarily be evaluate scientific terms. However, scientific research can also be supported for such nonscientific purposes as economic development, industrialization, education, etc. In that case, evaluation of scientific research will be based on economic, educational, etc., yardsticks. This paper attempts to seek evaluation criteria for the public support of science for the purposes of technological promotion. Such a public investment is shown to be a risky process. The “riskiness” of the process is discussed within the framework of a model of science-based technology and expressed in stochastic terms. A decision-making framework is then developed on the basis of expected utility hypotheses.  相似文献   
172.
江泽民总书记在中央纪委第七次全会上的重要讲话,内容丰富,高瞻远瞩.他从国际国内的大背景出发,站在巩固执政党的地位、维护国家长治久安的高度,深刻地阐述了加强党的建设特别是干部队伍建设的极端重要性.他指出:"对领导干部来说,打牢思想政治基础,筑严思想政治防线,最根本的就是牢固树立马克思主义的世界观、人生观、价值观,牢固树立正确的权力观、地位观、利益观."讲话体现了"三个代表"的重要思想,对党的建设和政权建设具有重大的指导意义.  相似文献   
173.
174.
The aim of the study was to develop a formula to estimate the stature and sex of an individual using foot and shoe dimensions. To this aim the stature, right and left shoe sizes, and maximum and minimum feet length and width measurements of a target group of 569 individuals were taken. The group was composed of 294 males and 275 females. The highest correlation coefficient was found in length measurements. A notable difference between males and females existed with regard to both right and left foot and shoe length and width averages and shoe sizes (p < 0.001). Among the group, a significant correlation was found in regard to stature and right shoe length (r = 0.591, p < 0.001), with the correlation between stature and right foot length and stature and right shoe length being 0.579 (p < 0.001); as for the female group, there was a significant correlation between stature and right foot length and stature and right shoe length (r = 0.460, p < 0.001). Thus the regression formula obtained are as follows: for the right side: sex = 69.169 + 0.173 (maximum foot length) - 0.368 (maximum foot width) - 0.820 (shoe length) + 0.224 (shoe width) - 1.280 (shoe number). For the left side: sex = 69.551 + 0.276 (maximum foot length) - 0.504 (maximum foot width) - 0.739 (shoe length) + 0.344 (shoe width) - 1.360 (shoe number). In application of the formula, if sex is lower than 0.50, the shoe belongs to a male, if higher, then to female. The formula which was obtained in regression analysis in order to estimate the stature when the measurements of shoe and foot were known. For the right side, stature = 47.93 + 1.083 (maximum foot length) + 0.788 (shoe length) 1.813 (shoe number) (SEE:31.410). For the left side: stature = 47.33 + 1.139 (maximum foot length) + 0.593 (shoe length) x 1.924 (shoe number) (SEE:31.607). It was understood that foot and shoe sizes are a criteria to estimate the stature of a person that there was a strong relationship between foot and shoe length and width and that these can be used to aid estimation. It was found that in sex estimate, foot and shoe lengths are better in helping the estimate than width measurements, and that the use of shoe measurements rather than bare foot measurements are better to obtain meaningful results.  相似文献   
175.
STR-genotyping from human medieval tooth and bone samples   总被引:3,自引:0,他引:3  
We extracted the DNA contained in samples of bones and teeth from 10 skeletons excavated from the Gravette site (400-1000 AD, south of France). Ancient DNA was analysed by autosomal short tandem repeats (STRs). The DNA present in these ancient remains appeared very degraded, but nevertheless, better conserved in tooth than in bone samples. Moreover, we showed that the DNA extracted from ancient dental pulp was not exempt from polymerase chain reaction (PCR) inhibitors, which could result from extreme DNA fragmentation. An adapted protocol with a supplementary step of purification removed this inhibition.  相似文献   
176.
广西的优势和希望在沿海,要实现"南向发展"战略目标,必须立足于发挥沿海优势,做大做强沿海港口、工业和物流业.本文提出构建大南宁经济区、实施广西工业南向发展战略、进一步加快沿海港口业和物流业发展等观点,探讨广西实施"南向发展"战略对促进沿海地区经济社会发展的新思路.  相似文献   
177.
This paper reports on the relationship between early adolescents’ evaluation of the availability of instructional and social support from parents, teachers, and peers and their well-being. The main questions are whether indigenous and immigrant youngsters differ in their evaluation of the availability of support and whether the relationship varies by group. Participants in the study were 245 Dutch and 172 Turkish/Moroccan 10- to 13-year olds with a lower class background. Both Dutch and immigrant youngsters clearly distinguish between the various agents of support. Dutch youngsters report more instructional support from their parents than from their teacher, whereas immigrant youngsters report more instructional support from their teacher. Both for Dutch and immigrant students, parents were seen as the primary providers of emotional support. Reported well-being in the classroom was related to available teacher support and to the frequency of occurrence of learning-related problems.Paul Vedder is an associate professor trained in developmental psychology. He received his PhD in 1985 from Groningen University, in the Netherlands. His main research interest is with self regulated learning, social competence, cooperative learning, and interethnic relationshipsMonique Boekaerts is a full professor trained as an educational psychologist. She received her PhD in 1978 from Tilburg University in the Netherlands. Her field of expertise is self regulated learning, motivation and emotions.Gerard Seegers is an assistant professor working in the field of self regulated learning, mathematics and ICT. He received his PhD in 1985 from Nijmegen University in the Netherlands. All authors are working at the Center for the Study of Education and Instruction at Leiden University in the Netherlands.  相似文献   
178.
A 2-wave survey study among 1173 10–14-year-olds tested the longitudinal contribution of secrecy from parents to psychosocial and behavioral problems in adolescence. Additionally, it investigated a hypothesized contribution of secrecy from parents to adolescent development by examining its relation with self-control. Results showed that keeping secrets from parents is associated with substantial psychosocial and behavioral disadvantages in adolescence even after controlling for possible confounding variables, including communication with parents, trust in parents, and perceived parental supportiveness. Contrary to prediction, secrecy was also negatively associated with feelings of self-control. Secrecy from parents thus appears to be an important risk factor for adolescent psychosocial well-being and behavioral adjustment.PhD student, Department of Social Psychology, Free University, The Netherlands. Received Masters degree in social psychology at Utrecht University. Research interests are workings and consequences of secrecy in adolescence and adulthood, and evolutionary approaches to studying human social behavior.Associate Professor, Department of Social Psychology, Free University, The Netherlands. Received PhD in clinical and social psychology at the University of Louvain, at Louvain-la-Neuve. Research interests are communication and relationships in adolescence and the conceptualization and measurement of secrecy.Assistant Professor, Institute of Family and Child Care Studies, University of Nijmegen, The Netherlands. Research interests are family, work-stress, and methodological issues in multivariate longitudinal analyses.Professor, Institute of Family and Child Care Studies, University of Nijmegen, The Netherlands. Research interests are friendships, family relationships, and substance use and abuse in adolescence.  相似文献   
179.
Despite its widespread use since the concept was introduced by David Truman (1951. The Governmental Process. New York: Alfred A. Knopf), counter-mobilization by organized interests has remained theoretically ambiguous and rarely studied empirically. We more fully develop the concept of short-term counter-mobilization, distinguish it from long-term counter-mobilization, specify the conditions under which we might observe short-term counter-mobilization, and test the resulting hypotheses with data on health care lobby registrations in the American states during the late 1990s. We find little evidence of short-term counter-mobilization among health interest organizations, which leads us to more fully consider several null hypotheses about the limits of strategic behavior on the part of organized interests.An earlier version of this paper was prepared for presentation at the Annual Meeting of the Midwest Political Science Association, Chicago, April 2004. This research was supported by a Robert Wood Johnson Foundation Investigator Award in Health Policy Research (ID#047727).  相似文献   
180.
Postmortem examination of a 35-year-old parous woman who died suddenly revealed a hydatid cyst mass located at the right ventricular outlet, with a grossly discernible defect opening to the pulmonary outflow tract. Pulmonary hemorrhage, follicular bronchitis, and bronchiolitis also were present, with severe acute purulent exudation in the airways. Hydatid cyst complications must be kept in mind when dealing with sudden deterioration and death in patients who are residents of regions where echinococcosis is endemic.  相似文献   
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