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921.
The aim of this study was to analyze the accuracy and the reliability of four methods of dental age estimation (Demirjian, Willems I, Willems II, and Chaillet standards) in a French population. Orthopantomograms of 743 children aged between 4 and 15 years were used. The Demirjian standards gave a consistent overestimation of dental age compared with chronological age (+0.45 and +0.46 years for girls and boys, respectively). We found that three modified methods were more accurate for both sexes than Demirjian's method: the Willems I method appeared to be more suitable when the sex and ethnicity are both known (?0.09 and +0.14 years for girls and boys, respectively); the Willems II method was more accurate for children of unknown sex (mean difference = 0.00 years), and the Chaillet method was found to be more accurate than the Demirjian method, but less accurate than the Willems I method (?0.59 and ?0.18 years for girls and boys, respectively).  相似文献   
922.
Abstract: This study introduces a method to classify individuals according to an age threshold, given sex and third molars’ dental maturity measured on the Demirjian scale by expressing uncertainty on dental evidence (soft evidence). We introduced a procedure to learn the parameters of the Naïve Bayes model, and we discussed two classification rules. The model was estimated and tested on 559 Italians aged 16–22. Two experts provided the dental evaluations, and the model was estimated for each of them. We evaluated the coherence of the evidence provided by the experts. Some indexes have been proposed to evaluate the effectiveness of the models, emphasizing how the experts’ ability and the technology affect the results. We introduced two benchmarks, one based on the sample distribution per sex and age: in this case, probability of correct classification increases 22% and the proportion of false adults impressively decreases 80.2%; the other benchmark, obtained by simulating hard evidence, shows how the use of soft evidence increases the proportion of correct classification 3.1% and decreases the crucial proportion of false adults about 20%. Similarly, the proportion of false minors decreases about 5.3%.  相似文献   
923.
The social model of disability is presented as a new paradigm of the recent disability treatment, that has had theoretical and legal current development. It is a model that considers that the origins of disability are not either religious or scientific, but social in a great measure. From this new perspective, it is emphasized that the population with disability can contribute to the society in the same circumstances that the rest of the population, which integrates the society, all this from a valorization of the inclusion perspective and respect of diversity. This model is closely related with certain essential values which underline the human rights, such as human dignity, individual freedom and equality; all these conduce to a decrease of barriers and lead to a social inclusion that sets basis to principles as: personal autonomy, nondiscrimination, universal accessibility, environmental normalization, civil dialogue, inter alia. The premise is that disability is part of a social construction, and it is not the deficiency created by the society itself what limits and prevents people with disability to be included, to decide or to design autonomously their own life plan with opportunity equality.  相似文献   
924.
我国上市公司偏好于股权融资,这会对公司经营业绩、治理机制以及社会经济事业产生负面影响。控股股东义利观的倒置会造成公司经营业绩的下滑及公司治理机制的恶化,管理机构义利观模糊状态下的监管失位则会导致资本市场的不健康发展及公众利益受损.原因就在于股权分置。流通股股东与非流通股股东价值理念的冲突是股权融资偏好形成并发展的内生因素,而政府习惯性干预市场的思维方式则是外生因素。只有切实提高上市公司股东及政府经济伦理意识并完善以职业经理人市场和监管制度为代表的制度安排,才能改变股权融资偏好状况。实现经济的可持续发展。  相似文献   
925.
《人民警察法》第二十一条规定:"人民警察遇到公民人身、财产安全受到侵犯或者处于其他危难情形,应当立即救助"。但由于救助制度缺陷,致使人民警察履行救助义务时常陷入困境。在履行救助是警察提供社会公共服务的重要途径的背景下,应当从规范人民警察救助范围、程序、法律救济等方面,对救助制度的规范化进行了探讨,以期对人民警察更好履行救助义务提供规范性指导,加强人民警察执法规范化建设,促进和谐警民关系的构建。  相似文献   
926.
SUMMARY

The WCHPC studied the extent of collaboration between state women's health officials and TANF officials with respect to programs that affect the health and well-being of poor women. The kinds and extent of monitoring activities designed to gather information on the health status of this population were also examined. Great unevenness across states was revealed for both collaboration and monitoring. State-level interest in improving both was assessed, barriers to improvement were identified, and recommendations for steps forward were solicited.  相似文献   
927.
Abstract

The main aim of the present study was to describe children's perceptions and experiences of bullying: the way they define it, their thoughts about why children are bullied and their experiences of the way adults respond to bullying. The study group comprised 960 children in the fourth grade. The most frequent answers concerning why some children get bullied were that these children have a different appearance (43%) or that they are deviating in other ways than by appearance (31%). Two groups of bullied children seem to be of special concern; the children who do not tell adults about their situation (9% of the bullied children) and the children who do not perceive that they have received help from adults at school (24% of bullied children). The children's perceptions and experiences are discussed in relation to interventions in Swedish schools.  相似文献   
928.
The paper analyses the connections between elite and mass opinion in the European Union. It considers both the ways in which mass publics use heuristics supplied by political elites to form their EU opinions, and the ways in which political elites respond to the opinions of the mass publics they represent. The paper employs data from simultaneously-conducted elite and mass surveys carried out in sixteen European countries in 2007. The results show that masses and elites in Europe do appear to take cues from one another in forming their EU opinions. Political elites base their individual-level opinions on the average position taken by their respective (national) party supporters. Mass respondents base their opinions on the average position taken by elite members of the (national) party with which they identify.  相似文献   
929.
The study of referendum voting follows much the same format as for general election voting. Influences on vote, however, are likely to differ significantly. Referendums decide issues, while general elections determine which party or parties will form the government. Parties are often divided on referendum issues and these issues tend to be of low salience. General elections, however, are contested by long-established parties on highly salient issues. Using panel data from the British Election Study and the 2011 Alternative Vote Referendum Study, we find that voters place different weights on party identification, issue positions, government and leader evaluations when voting in general elections and referendums, but the evidence for differential campaign effects is limited.  相似文献   
930.
Women's continued political underrepresentation suggests that women candidates might be more likely than men to be ‘sacrificial lambs’ – that is, more likely than men to serve as party standard bearers in districts where their party has little chance to win. Using data from the 2004–2011 Canadian federal elections, we find support for the sacrificial lamb hypothesis when district competitiveness is measured dynamically, rather than statically. Our dynamic measurement of district competitiveness further shows that women incumbents' seats are not as safe as are men's. We conclude that these two factors help to explain why women remain underrepresented in Canadian federal politics.  相似文献   
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