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41.
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
42.
43.
The present study examined the longitudinal links between perceptions of family connectedness and body satisfaction in 1,774
(52% female) adolescents. Participants (10–15 years of age at Time 1) completed self-report measures at three measurement
occasions separated by 1 year each. Mean group difference results showed that both body satisfaction levels and perceived
levels of family connectedness decreased over 2 years for the whole sample. As expected, girls were generally less satisfied
with their bodies than boys, particularly in the older cohort. Structural equation modelling was used to assess stability
coefficients and cross-lagged effects, and longitudinal bidirectional effects between perceptions of family connectedness
and body satisfaction were found for girls, but not for boys. This result suggests that adolescent girls’ body satisfaction
is both affected by and a predictor of perceived family connectedness. 相似文献
44.
可持续发展观是针对传统发展模式的弊端而提出的新发展战略。它要求经济发展与人口、资源和环境相协调,实现人与自然相和谐。新生产力观是可持续发展战略的必然要求,它强调以人为本,人是生产力发展的最终目的,在生产力发展过程中实现人与自然的统一。同时新生产力观也为可持续发展提供智力支持和观念保证。 相似文献
45.
46.
This paper summarizes the results of previous work on the microscopic observation of linear dichroism found in dyed fibres (polyesters, polyamides, wool, silk, cotton, viscose, acrylics and acetates) and in pigmented fibres as well as the measurements on these fibre classes using microspectrophotometry with plane polarized light (MSP-PPL). The validation of this method is discussed and a practical tool is proposed for comparing fibre traces with control fibres. The limitations and strengths of this method are also revised. 相似文献
47.
Valeria Santoro Ph.D. Piercarlo Lozito D.D.S. Antonio De Donno Ph.D. Francesco Introna M.D. 《Journal of forensic sciences》2011,56(1):224-228
Abstract: This study was based on a morphometric analysis of bite marks starting from the quantitative definition of the anterior teeth by the geometric acquisition of the “injuries,” using bite marks impressed on pig skin and plastic. Each mark was photographed and acquired. A dedicated program automatically supplied the values of the shape factors and the areas of the pattern geometric figures. The values obtained for the homologous samples were compared to the heterologous values. Statistical comparison was made of the sets by linear regression, determining the correlation coefficient and the determination coefficient for each value. Results showed only 4.8% and 2% of overlap between homologous and heterologous values. This study was carried out in attempting to quantitatively define the anterior teeth of the human dentition and the procedure described and the results obtained support the advantage of morphometric studies and computer‐aided programs in this study of bite marks. 相似文献
48.
Jan Terpstra 《Crime, Law and Social Change》2011,55(2-3):87-104
Community policing presents its own distinct governance and accountability challenges. Local community police officers, for example, can find themselves stretched between the accountability demands of the local community and those flowing from professional, managerial and central government sources. Drawing on the results of a recent ethnographic study on neighbourhood police officers in rural and urban areas in the Netherlands, this article probes the nature and extent of these tensions and the coping strategies deployed by the officers in question and the police organisation as a whole. It finds that a regular strategy is to neutralise or marginalise the voice of the local community in shaping police priorities and strategies. Local democratic control of the police is often smothered by the competing professional, managerial, cultural and central government forces. This, in turn, has the effect of putting distance between police offices and citizens, and even creating a demand for the engagement of private sector patrol officers who are more responsive to the needs and wishes of the local community. 相似文献
49.
The public administration literature asserts that autonomy is central to performance. In this article we develop a managerial autonomy index, which we apply to 22 water utilities in Africa, Asia and the Middle East. The 16 items that underlie our composite autonomy index display a high degree of internal consistency. This speaks for the validity of the autonomy concept. We find that the autonomy scores of the 22 utilities vary widely. We also find strong and positive associations between autonomy scores and six out of eight key performance indicators. Our results support the idea that autonomy is central to the performance of water service providers. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
50.
Adolescents' perceptions of their attachment relationships with their mothers,fathers, and friends 总被引:1,自引:0,他引:1
This study explored changes in New Zealand adolescents' perceptions of their attachment relationships with their mothers, fathers, and friends. The main findings revealed that from early to late adolescence: Males and females remained stable in their quality of affect toward their mothers. With increasing age, females utilized their mothers for support and proximity more, whereas males utilized their mothers for support and proximity less. With increasing age, males and females rated their quality of affect toward their fathers as lower and utilized their fathers for support and proximity less. Females had a higher quality of affect toward friends than males regardless of age, but both males and females increased their utilization of friends for support and proximity over age. Further analyses revealed that Pacific Island adolescents utilized their mothers less for support and proximity than European/Pakeha adolescents. Adolescents from one-parent families utilized their fathers less for support and proximity and had a lower quality of affect toward him than adolescents from two-parent families. These findings suggested that substantial changes take place in attachment relationships from early to late adolescence and highlighted the need for research to differentiate between the sex of adolescent and sex of parent dyads in order to examine adolescents' affective relationships effectively.This research is based on the first author's doctoral dissertation at the University of Auckland.Received Ph.D. from the University of Auckland. Research interests are in life span developmental psychology and in the parenting of children and adolescents.Received Ph.D. from the Australian National University. Research interests lie within life span developmental psychology and early cognitive development.Received Ph.D. from the University of Canterbury. Her main interests are in life span developmental psychology and the development of low birth weight babies. 相似文献