Many studies in the literature have highlighted the utility of virtual 3D databanks as a substitute for real skeletal collections and the important application of radiological records in personal identification. However, none have investigated the accuracy of virtual material compared to skeletal remains in nonmetric variant analysis using 3D models. The present study investigates the accuracy of 20 computed tomography (CT) 3D reconstruction models compared to the real crania, focusing on the quality of the reproduction of the real crania and the possibility to detect 29 dental/cranial morphological variations in 3D images. An interobserver analysis was performed to evaluate trait identification, number, position, and shape. Results demonstrate a false bone loss in 3D models in some cranial regions, specifically the maxillary and occipital bones in 85% and 20% of the samples. Additional analyses revealed several difficulties in the detection of cranial nonmetric traits in 3D models, resulting in incorrect identification in circa 70% of the traits. In particular, pitfalls included the detection of erroneous position, error in presence/absence rates, in number, and in shape. The lowest percentages of correct evaluations were found in traits localized in the lateral side of the cranium and for the infraorbital suture, mastoid foramen, and crenulation. The present study highlights important pitfalls in CT scan when compared with the real crania for nonmetric analysis. This may have crucial consequences in cases where 3D databanks are used as a source of reference population data for nonmetric traits and pathologies and during bone-CT comparisons for identification purposes. 相似文献
In the present studies, we aimed to show that the perceived procedural fairness of societal actors’ multicultural decisions promotes ethnic minority members’ societal identification. These enhanced identification levels, in turn, contribute to better psychological health and well-being. Firstly, a vignette study in a sample of African Americans explored the effect of procedural fairness climate on identification. The second and third studies used self-report questionnaires. Study 2 consisted of a sample of sojourners in a university context, Study 3 analyzed online data through an African American sample. The studies provided evidence for the effect of procedural fairness climate on increased societal identification, which in turn mediates the fairness effect on increased well-being and psychological health. Societal actors can use procedural fairness to increase well-being when making decisions that involve ethnic minorities.
Housework and childcare have been considered mechanisms for ‘doing gender’ through the allocation of different functions to women and to men. Women continue to devote more time and effort to this type of work, in spite of their progressive incorporation into the labour market. Same-sex couples escape this gender binarism, and so this study set out to learn the distribution criteria work, as well as the influence of gender socialization when it comes to establishing this distribution. A qualitative investigation was carried out with 21 Spanish same-sex families. The results indicate that the majority of couples position themselves in an egalitarian discourse based on the absence of differentiated gender roles and a low level of specialization. No differences were found between male and female couples. Nevertheless, the female couples show higher levels of discontent when the distribution was not egalitarian. In conclusion, it is proposed that the effects of gender socialization are perpetuated beyond heterosexual relationships and also affect same-sex couples. 相似文献
Considerable research has focused on the reliability and validity of informant reports of family behavior, especially maternal
reports of adolescent problem behavior. None of these studies, however, has based their orientation on a theoretical model
of interpersonal perception. In this study we used the social relations model (SRM) to examine family members’ reports of
each others’ externalizing and internalizing problem behavior. Two parents and two adolescents in 69 families rated each others’
behavior within a round-robin design. SRM analysis showed that within-family perceptions of externalizing and internalizing
behaviors are consistently due to three sources of variance; perceiver, target, and family effects. A family/contextual effect
on informant reports of problem behavior has not been previously reported. 相似文献
The problem‐solving capacity and problem‐generating potential of multilevel systems entail the need for the delegation of authority. When the problem concerned is about how to put an abstract policy concept into a practicable policy tool, the choice of the respective delegation trajectory depends on the policy models or the policy‐relevant knowledge that the respective political levels can supply. When regarding the European Union (EU) level as the starting point of knowledge creation and delegation trajectories, and concentrating on transaction costs, policy knowledge and models generated at the international level provide the most cost‐effective solution. Only when the international level is not able to provide further policy knowledge and innovation does the EU delegate its definitional authority, first downward to the member states and then sideways to EU agencies. We illustrate the plausibility of our dynamic understanding of multilevel governance by using Environmental Policy Integration as an example. 相似文献
This paper seeks to analyze the policies on the cultural field implemented in Chile in recent years, explaining how expertise became fundamental and, more specifically, how this expertise evolved from that of an expert intellectual to that of an expert professional. The paper is based on the general hypothesis that the cultural field needs to be viewed in the context of a growing differentiation and autonomization of Chilean society, but that there are some interesting nuances to its evolution, particularly with regard to the transformation of expertise. This article argues that the expert in culture has a twofold nature, which is illustrated through drawing a timeline from the 1980s to the present, marking certain milestones in Chile’s national and cultural history. This timeline incorporates the intellectual work of two of Chile’s most important contemporary sociologists and experts in culture and cultural policies, Manuel Antonio Garretón and José Joaquín Brunner. A sample of their publications is analyzed and then contrasted to documents on cultural policy since the approval of the country’s institutional framework for culture in 2003, when the National Council for Culture and the Arts was created, gauging the influence of the expert intellectual on this new institutional framework and the thrust of public policies on culture. The paper concludes that the figure of the expert in culture has shifted from the “expert intellectual” to the expert of a professional kind, although the theoretical work of the former has continued to influence the debate around cultural policies to this day. 相似文献
The professional community of policy experts takes it for granted that all governments seek to strengthen their policy capacity, considering it a key indicator and requisite of their success. Yet this assumption is far from universal, even in some European Union countries with long and complex institutional histories. If we look at the informed and explicit use of policy analysis tools in France, Germany, Spain, and Italy, we have to conclude that this paradigm is not completely integrated into their governmentality. In these countries, three disciplinary approaches warrant especial attention as generators of competencies recognized as usable knowledge for public decisions: ‘law,’ ‘public finance’ and ‘public administration.’ Where the standard operating procedures of democratic institutions appear to be fully defined on the basis of these three categories, the inclusion of the policy perspective encounters major difficulties. In these contexts, the most important obstacle is the fear that the new paradigm will threaten the balance among the constitutional bodies, especially to the detriment of the legislature, and that it will constrict the political leadership. This explains why some countries, such as France and, most recently, Italy, have attempted to resolve the impasse by resorting to the strongest of legitimations: inclusion in their constitutions of public policy evaluation as a function of Parliament. This choice is certainly important, but in itself it does not guarantee recognition of the policy paradigm as a science for democratic institutions. 相似文献