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41.
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Most scholars agree that news coverage of politics is the product of complicated interaction between journalists and politicians. Yet, we know little about how the interaction affects the coverage. Our analysis examines U.S. senators' press events and subsequent national network coverage from 1980–1996. Our evidence suggests that all senators can increase journalists' interest in their press events by carefully choosing the type of event and which politicians attend. In turn, such interest often translates into actual news stories, although that coverage is not guaranteed. Thus, senators can structure press events in order to increase the likelihood of coverage, but reporters understandably resist their attempts to do so. As a result, the most newsworthy press events require senators to give up control over content, creating more potential for revealing unexpected information.  相似文献   
43.
Detection of trace quantities of explosive residues plays a key role in military, civilian, and counter-terrorism applications. To advance explosives sensor technology, current methods will need to become cheaper and portable while maintaining sensitivity and selectivity. The detection of common explosives including trinitrotoluene (TNT), cyclotrimethylenetrinitramine, cyclotetramethylene-tetranitramine, pentaerythritol tetranitrate, 2,4,6-trinitrophenyl-N-methylnitramine, and trinitroglycerin may be carried out using a three-step process combining "turn-off" and "turn-on" fluorimetric sensing. This process first detects nitroaromatic explosives by their quenching of green luminescence of polymetalloles (lambda em approximately 400-510 nm). The second step places down a thin film of 2,3-diaminonaphthalene (DAN) while "erasing" the polymetallole luminescence. The final step completes the reaction of the nitramines and/or nitrate esters with DAN resulting in the formation of a blue luminescent traizole complex (lambda(em) = 450 nm) providing a "turn-on" response for nitramine and nitrate ester-based explosives. Detection limits as low as 2 ng are observed. Solid-state detection of production line explosives demonstrates the applicability of this method to real world situations. This method offers a sensitive and selective detection process for a diverse group of the most common high explosives used in military and terrorist applications today.  相似文献   
44.
A screening instrument for detecting intimate partner violence (IPV) was developed using indirect questions. The authors identified 5 of 18 items studied that clearly distinguished victims of IPV from a random group of health conference attendees with a sensitivity of 85% and a specificity of 87%. This 5-item instrument (SAFE-T) was then tested on 435 women presenting to three emergency departments and the results compared to a direct question regarding current abuse. The SAFE-T questions detected only 54% of the women who admitted being abused and correctly classified 81% of the women who said they were not victims. The 1-year prevalence of IPV in this sample of women presenting to an emergency department was 11.6%. The authors conclude that indirect questioning of women appears to be more effective at ruling out IPV in an emergency department population and may be less useful for women "early" in an abusive relationship.  相似文献   
45.
Despite generous public funding, arts institutions in Germany are primarily serving a small, educated section of the German population. This article presents findings from arts participation surveys, research from an empirical study on “Intercultural Audience Development” in public theaters and museums, and an analysis of cultural policy debates to reveal the role of audience development in overcoming the social imbalance of audiences in German cultural institutions. Research findings suggest that traditional concepts of audience development do not lead to sustainable changes in the social structure of the audience. More substantial institutional changes are necessary, supported by new cultural policies.  相似文献   
46.
In April 2004 photographs were publicized showing American servicewomen conspicuous among the tormentors of inmates at Abu Ghraib prison. These sadistic images defied gendered expectations about the proper behaviour of women and prompted a flurry of articles on women's involvement. Many responses to the Abu Ghraib disclosures implicitly accepted that such brutality is typical of military men but when enacted by women is aberrant in ways that merit special notice and explanation. Feminist writers tended to construe the photographs as either demonstrating women's equal capacity for conscienceless violence or as confirming women's subordination in the male-dominated military. This paper reconsiders the role of servicewomen in the Abu Ghraib abuses and critiques these foremost feminist readings (which are shown to mirror anti-feminist responses in significant respects). Commentaries on the role of military women neglect the opposition of prominent members of the US armed forces to policies that encouraged abuses. Recognizing the tension between US administration policies and military dispositions sheds a different light on the events at Abu Ghraib, women's involvement in these abuses, and the presumed normalcy of male violence.  相似文献   
47.
At a time when calls for German leadership abound, we need to ask what kind of leadership Berlin is likely to offer. This paper builds on scholarship that presumes identity as an essential precondition for orderly social life. My focus is on how identity is secured through ontological security-seeking. Ontological security theory reveals how Germany is responding to rising calls for leadership in Europe and beyond and traces these responses to an increasingly stressed identity narrative. It explains both Germany’s reluctance to lead and, being pressed to lead, how leadership is legitimated through discursive adaptation. Whether “leading from the center” or exercising “servant leadership”, ontological security theory exposes the specific interactions between a national self-narrative and a rapidly changing environment. I show how these interactions challenge Germany’s identity and its ability to adapt; how they cause ontological anxiety, and how the scope and direction of adaptation to structural change account for the kind of leadership Germany is able to offer. What we observe is a determined effort to position the country between a traditional culture of restraint that can no longer meet Germany’s responsibilities and a position of hegemony that speaks of self-serving behaviour and dominance.  相似文献   
48.
49.
Although peer victimization is of major concern and adolescents spend increasing amounts of time on the Internet, relatively little is known about the psychosocial antecedents and consequences of online victimization. The main aim of this study was to compare the psychosocial antecedents and consequences of online versus real-life victimization. More specifically, the bidirectional relationship between online and real-life victimization on the one hand and psychosocial problems (i.e., loneliness and social anxiety) on the other was examined. In addition, the moderating role of online aggression in the relationship between online victimization and subsequent psychosocial problems was studied. This prospective study, consisting of three annual measurements, was conducted among a sample of 831 adolescents (50.3 % girls) aged 11–15, of which most (80.2 %) had a Dutch ethnic background. The results indicate a unidirectional relationship whereby loneliness and social anxiety predict an increase in latter online victimization rather than the reverse. A bidirectional relationship was found for real-life victimization: loneliness (but not social anxiety) predicted an increase in latter real-life victimization, which in turn predicted an increase in subsequent social anxiety (but not loneliness). No moderating effects of online aggression were found. The findings of the present study suggest that negative online and in real life peer interactions have a differential meaning for, and impact on adolescents’ well-being.  相似文献   
50.
Previous studies on general parenting have demonstrated the relevance of strict parenting within a supportive social context for a variety of adolescent behaviors, such as alcohol use. Yet, alcohol-specific parenting practices are generally examined as separate predictors of adolescents’ drinking behavior. The present study examined different developmental profiles of alcohol-specific parenting (rule-setting, quality and frequency of communication about alcohol use) and how these patterns relate to the initiation and growth of adolescents’ drinking. A longitudinal sample of 883 adolescents (47?% female) including four measurements (between ages 12 and 16) was used. Latent class growth analysis revealed that five classes of parenting could be distinguished. Communication about alcohol appeared to be fairly stable over time in all parenting classes, whereas the level of rule-setting declined in all subgroups of parents as adolescents grow older. Strict rule-setting in combination with a high quality and frequency of communication was associated with the lowest amount of drinking; parents scoring low on all these behaviors show to be related to the highest amount of drinking. This study showed that alcohol-specific rule-setting is most effective when it coincides with a good quality and frequency of communication about alcohol use. This indicates that alcohol-specific parenting behaviors should be taken into account as an alcohol-specific parenting context, rather than single parenting practices. Therefore, parent-based alcohol interventions should not only encourage strict rule setting, the way parents communicate with their child about alcohol is also of major importance.  相似文献   
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