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381.
The black soldier fly, Hermetia illucens (L.), is thought to colonize corpses 20-30 days postmortem. However, recent observations indicate this might not be true for all cases. Therefore, we conducted a study examining colonization by the black soldier fly and other Diptera on pig carrion in a plowed field in southern Georgia from 20 September through 21 February. Our data indicate black soldier flies could colonize a corpse within the first week after death. Knowing this information could prevent a serious mistake in estimating the time at which a corpse is colonized by this species. This study also represents the first record of Chrysomya rufifacies in Georgia. 相似文献
382.
Longitudinal relations between past suicidality and subsequent changes in psychological distress at follow-up were examined among gay, lesbian, and bisexual (GLB) youths, as were psychosocial factors (e.g., self-esteem, social support, negative social relationships) that might mediate or moderate this relation. Past suicide attempters were found to have higher levels of depressive symptoms, anxious symptoms, and conduct problems at a later time than youths who neither attempted nor ideated. Psychosocial factors failed to mediate this relation. The interaction among past suicidality, social support, and negative relationships was associated with subsequent changes in all 3 psychological distress indicators 6 months later. Specifically, high levels of support (either from family or friends) or negative relationships were found to predict increased psychological distress among those with a history of suicide attempts, but not among youths without a history of suicidality. The findings suggest that GLB youths who attempt suicide continue to have elevated levels of psychological distress long after their attempt and they highlight the importance of social relationships in the youths psychological distress at follow-up.Earlier versions of this paper were presented at the biannual meeting of the European Association for Research on Adolescence, Oxford, UK, September 2002; and, at the annual meeting of the American Public Health Association, San Francisco, CA, November 2003.Associate Professor of Psychology, The City University of New York—The City College and Graduate Center. Received PhD in psychology from New York University. Research interests include the relation of identity to health, the intersection of multiple identities, and the relation of violence to health.Doctoral candidate in Social/Personality Psychology and Health Psychology, The City University of New York—Graduate Center. Research interests include the role of social relationships in the preservation of health and well-being.Research Scientist, HIV Center for Clinical and Behavioral Studies, New York State Psychiatric Institute; and Assistant Professor, Department of Psychiatry, Columbia University. Received doctorate in social welfare (DSW) from The City University of New York—Graduate Center. Research and clinical interests include the design and implementation of interventions for gay, lesbian, and bisexual adolescents. 相似文献
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There is a formal equivalence between games, societies, and economies. Lindahl equilibrium for a game or society corresponds to competitive equilibrium for the equivalent economy. Results on existence and optimality of competitive equilibrium thus apply to the theory of games and societies. The “core” for a game or society as derived by extension from the core of an economy is “too large” to be interesting. An example illustrates that the α-core may be disjoint from the set of Lindahl equilibria. However, if the power of coalitions to inflict negative externalities is suitably restricted, Lindahl equilibria must be in the α-core. 相似文献
388.
Joyce D. Ross 《Journal of criminal justice》1980,8(2):89-96
In recent years, assessment centers have become an increasingly popular approach to selecting and promoting police managers. Yet few empirical studies have been conducted on the validity of these assessment centers. The intent of this investigation was to conduct one of the first criterion-related validity studies of an assessment center in law enforcement. Findings indicate that this center was capable of differentiating between effective and ineffective managerial performance, as measured by a follow-up evaluation of performance two years later. The study also revealed that the dimensions of communication skills and interpersonal skills were the major determinants of assessment ratings. In addition, a closer analysis of the conduct of the assessment center suggests that its effectiveness cannot be attributed to the commonly cited assessment factors contributing to the success of assessment centers in the private sector. 相似文献
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Joyce Long 《Local Government Studies》2013,39(2):45-59
This paper advances the conjecture that the shift to a direct election of mayors in Israel, a most significant step towards recognising local authorities as political entities in their own right, has prevented further progress in the same direction. Hirschman's ‘getting stuck syndrome’ is used here to explore this paradox. Since a highly centralised system is not compatible with a ‘strong mayor system’, there developed an ingenious scheme — ’de facto decentralisation’ — a peculiar blend of formal ‘agency’ relationship, informal ‘partnership’ and ‘grey‐area’ autonomy. This scheme persists apparently because it is well suited to a world of ambiguous and conflicting imperatives. 相似文献