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101.
Family support, urban stressors, and peer behavior were examined in relation to externalizing symptoms in 605 predominantly low-income urban sixth through eighth grade adolescents. Mother and father support were each associated with lower levels of externalizing symptoms in both males and females. For males, father absence was associated with increased peer externalizing behavior and heightened rates of youth externalizing symptoms. Stress (in the form of major life events, daily hassles, and exposure to violence) and peer externalizing behavior were examined as mediators of the relation between parent support and youth externalizing symptoms. Increased stress exposure mediated the relation between weak mother and father support and youth externalizing symptoms. Additionally, for females, peer externalizing behavior mediated the relation between weak mother support and youth externalizing symptoms.  相似文献   
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There are no previous surveys of psychopathy and psychopathic traits in representative general population samples using standardized instruments. This study aimed to measure prevalence and correlates of psychopathic traits, based on a two-phase survey using the Psychopathy Checklist: Screening Version (PCL: SV) in 638 individuals, 16–74 years, in households in England, Wales and Scotland. The weighted prevalence of psychopathy was 0.6% (95% CI: 0.2–1.6) at a cut score of 13, similar to the noncriminal/nonpsychiatric sample described in the manual of the PCL: SV. Psychopathy scores correlated with: younger age, male gender; suicide attempts, violent behavior, imprisonment and homelessness; drug dependence; histrionic, borderline and adult antisocial personality disorders; panic and obsessive–compulsive disorders. This survey demonstrated that, as measured by the PCL: SV, psychopathy is rare, affecting less than 1% of the household population, although it is prevalent among prisoners, homeless persons, and psychiatric admissions. There is a half-normal distribution of psychopathic traits in the general population, with the majority having no traits, a significant proportion with non-zero values, and a severe subgroup of persons with multiple associated social and behavioral problems. This distribution has implications for research into the etiology of psychopathy and its implications for society.  相似文献   
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Testing for the presence of cocaine (COC) is common in postmortem and clinical laboratories. COC use may be detected by screening urine specimens for COC metabolite. In the forensic arena, screening positive results are confirmed by a more specific and sensitive technique, such as gas chromatography-mass spectrometry. This article reports the case of an individual who died of COC intoxication but whose immunoassay screen (EMIT) for COC metabolite was negative. Gas chromatography-mass spectrometry analysis of the urine detected benzoylecgonine (BE) at a concentration of 75 ng/mL and COC at 55 ng/mL. These concentrations explain the negative screening result since the cutoff concentration of the assay was 300 ng/mL for BE. The reported cross reactivity with COC was 25,000 ng/mL. However, heart blood concentrations of COC and BE were 18,330 and 8640 ng/mL, respectively. The results from this case provide evidence that an EMIT test alone may fail to detect COC use. Individuals utilizing results of drug screening by immunoassay must be aware of the limitations of this testing methodology.  相似文献   
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Organizational culture is the pattern of values and beliefs held by members of an organization and the management of culture is now one of the most frequently discussed of all organizational concepts. The excitement associated with culture is attributable to two factors. First, it is argued that culture is the key to organizational performance; simply stated, a strong organizational culture can be a source of competitive advantage. Second, culture is perceived as an alternative method of control to traditional and technocratic forms of management and can be manipulated to ensure that employees are enthusiastic and committed to organizational objectives.
Despite the extensive interest in this topic, culture remains an elusive concept. This paper investigates the nature of culture and considers strategies for introducing cultural change. Specifically, the aims of the paper are threefold. First, to locate and explain the interests and significance of culture change for the public sector. Second, using a case study of a newly created agency, to investigate the problems and issues affecting cultural change in the civil service. Third, to reassess and critically evaluate the claims for culture management made in the literature. Finally, this paper questions some of the assumptions in the literature, which with few exceptions are biased toward top management and the unitary conception of organization, an ideological frame of reference which is particularly problematic in the public sector.  相似文献   
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Plastics including adhesive tapes, cable ties, and packaging are common evidence types encountered in forensic investigations and casework. Traditional examination techniques such as Fourier Transform Infrared (FTIR) spectroscopy lack specificity and are unable to discern differences within the same polymer structures leaving the analyst with a generic identification. High quality manufacturing methods further amplify the limitations in detecting variability between samples. Isotope Ratio Mass Spectrometry (IRMS) has been shown to be a valuable technique in further discriminating plastics. Discrimination is achieved by analysing the relative abundances of stable isotopes within a sample, with differences detected in isotope ratios possibly attributed to the source of raw materials and fractionation during the manufacturing process. A survey of cling wraps and re-sealable zipper storage bags collected in the Australian Capital Territory was undertaken to assess the variability in carbon and hydrogen isotope ratios of different brands and samples. The results of this research are discussed, particularly with respect to within and between brand trends, and a case study is presented as an example of the value of including IRMS in a casework context.  相似文献   
109.
Courts have recently clarified some aspects of the Digital Millennium Copyright Act safe harbor system, yet other aspects remain hazy. In this haze, ISPs are incentivized to over-block content, and copyright holders are allowed to give a narrow, subjective reading of a user’s fair use. Subjectively, copyright holders can, in good faith, hold objectively unreasonable views about fair use. The asymmetry between copyright holders’ rights and remedies and users’ rights and remedies threatens socially valuable speech and creates a chilling effect. And the risk of extra-judicial termination of Internet access under a vague and variable repeat infringers policies threatens fundamental First Amendment interests. Policy changes are proposed to harness fair use considerations to protect First Amendment interests in the digital sphere. The calculus and consequence for sending takedown notices should be recalibrated. By curbing copyright overreach and minimizing the chilling effect, the potential for robust exchanges over new communication technologies can be realized.  相似文献   
110.
Abstract

The article traces the relationship between the concept of the traditional sublime and the contemporary cultures of the extreme and their fascination with unlimitation. It is asked to what degree the aesthetic category of the sublime, generally defined as a ‘formlessness’, can assist in exploring and making sense of the cultures of the extreme. The cultures of the extreme are analysed by means of three tropes, namely the ecstasy of speed, the immersion into immediacy, and the shrinking of the natural landscape. By utilising these three tropes or hermeneutical tools, the author attempts to show how these events typify the contemporary obsession with extremes, and can indeed be likened to a pseudo-sublime or kitsch sublime.  相似文献   
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