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41.
Tobias R. Keller 《政治交往》2019,36(1):171-189
Social bots mimic and potentially manipulate humans and their behaviours in social networks. The public sphere might be especially vulnerable to their impacts, which is why we first discuss their potential influence on the public sphere from a theoretical perspective. From an empirical perspective, we analyzed Twitter followers of seven German parties before (N = 638,674) and during (N = 838,026) the 2017 electoral campaigns regarding bot prevalence and activities. The results revealed that the share of social bots increased from 7.1% before to 9.9% during the election campaigns. The percentage of active social bots remained roughly the same. An analysis of the content distributed by both the most popular and the most active bots showed that they disseminate few political hashtags, and that almost none referred to German politics. We discuss the results against the background of normative traditions of public sphere theories and address the methodological challenges bots pose in political communication. 相似文献
42.
The so-called global economy has generated tremendous international wealth inequality that only increases as globalization deepens. This process is capped by the failure of classical economic theory to incorporate such free market externalities as negative capital . Negative capital can be defined as situations, events, or environmental conditions that degrade or threaten to degrade the standard of living or life expectancy of great numbers of persons, including those living in wealthy nations. These problems cut across issues of sovereignty and security, economic development, and the environment. They can be monetized and have value because the rich will have to pay in order to mitigate them, whether at home or abroad. Payment can take many forms, but it will involve a politics of redistribution. Negative capital is a systemic phenomenon "in nature" without which the classical economic theory is both incomplete and notably ideological. A tamed and therefore enlightened free market, that recognizes and addresses negative capital, may be better equipped to resolve the situations created by its inherent inadequacies. 相似文献
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Jonathan W. Keller 《国际研究季刊》2005,49(2):205-232
While a substantial body of theory suggests that democracies should behave peacefully toward all states (monadically), most empirical evidence indicates they are only pacific in their relations with fellow democracies (dyadically). A new theoretical synthesis suggests that the missing link between democratic constraints and pacific monadic behavior is leaders' perceptions of, and responses to, these constraints. Research on political leadership indicates that, contrary to conventional wisdom, leaders respond in systematically different ways to domestic constraints: "constraint respecters" internalize constraints in their environments, while "constraint challengers" view such constraints as obstacles to be surmounted. An analysis of 154 foreign policy crises provides strong support for this contingent monadic thesis: democracies led by constraint respecters stand out as extraordinarily pacific in their crisis responses, while democracies led by constraint challengers and autocracies led by both types of leaders are demonstrably more aggressive. 相似文献
44.
Biermann T Dippel O Bergner M Keller J Coffey C Sperling W Bleich S Kornhuber J Reulbach U 《Journal of forensic sciences》2011,56(3):669-673
The aim of the present epidemiological study was to investigate characteristics of assaults in the elderly aged 65 years and above from the perspective of the victim and perpetrator. This population-based study included 23,142 assaults (according to §§ 224/226 StGB of German criminal law) that were recorded in Bavaria, Germany, from 1999 to 2005. The population-based ratio of serious crimes of battery for the elderly in comparison with the reference population was markedly lower (0.10; 95% CI: 0.09-0.11) in suspects aged more than 65 years and 0.08 (95% CI: 0.07-0.09) for the injured above 65 years. Elderly perpetrators differed significantly concerning the manner of the assault (p < 0.001). They committed less crimes in urban areas (56.1% vs. 68.8%) and were victimized significantly more in rural areas (p < 0.001; 41.2% vs. 30.2%). Violence in the elderly differs from that of the younger population. Further research is warranted to establish prevention measures. 相似文献
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Heather M. Foran Dina Vivian K. Daniel O’Leary Daniel N. Klein Barbara O. Rothbaum Rachel Manber Martin B. Keller James H. Kocsis Michael E. Thase Madhukar H. Trivedi 《Journal of family violence》2012,27(1):75-85
The link between marital dysfunction and depressive symptoms has been well established, but the link between partner violence
and depressive symptoms is less clear. Further, little is known about partner violence and marital satisfaction in chronically
depressed patients. In this multi-site treatment sample of chronically depressed patients (N = 316), approximately 17% of men and 12% of women reported experiencing physical victimization from their partner in the
past year. However, physical victimization was not associated with the severity of depression for men or women. Cross-sectional
path analyses indicated that depressive symptoms predicted marital dissatisfaction, which in turn, predicted psychological
victimization. Further, psychological victimization predicted physical victimization. With chronically depressed individuals,
interventions that address both depression and marital dissatisfaction may prevent psychological and physical victimization. 相似文献
47.
Harsch S Bergk JE Steinert T Keller F Jockusch U 《International journal of law and psychiatry》2006,29(5):443-449
The objective of this study was to compare the prevalence of mental disorders among sexual offenders in forensic psychiatry (SF) with the prevalence of such disorders among sexual offenders in prison (SP) and violent offenders in prison (VP). In a cross-sectional study, 40 of 47 SF detained in forensic psychiatry in Baden-Wuerttemberg, Germany, could be included. They were compared with 30 SP and 26 VP. All study participants were interviewed by means of SCID I and SCID II and assessments of functioning (GAF, BSS). There was a high prevalence of mental disorders (DSM-IV: Axis I) in all three groups (SF: 80%, SP: 63%, VP: 73%). Among SP and VP, this was attributed mainly to substance use disorders. The prevalence and comorbidity of personality disorders was significantly higher in the group of the SF (prevalence: SF: 85%, SP: 27%, VP: 39%). In a psychopathological view, SP were all together more similar to the imprisoned non-sexual delinquent VP than to the SF. 相似文献
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