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1.
This issue examines struggles over public discursive power in late modern society, understanding that late modern publics are characterized by a destabilization of formerly unmarked public authorities, in other words, an unsettling of standardized “voices from nowhere” (Gal & Woolard, 2001). The contributions to the issue illustrate traditional social and academic elites’ discursive reactions to such developments. In the introduction, we outline different theoretical frameworks of modern and late‐modern publics, identify factors that contribute to a destabilization of modern certainties of social public order, and argue that a weakening of traditional public norms not only implies emancipation but also, as the contributions to the issue demonstrate, may bring along new forms of public dominance. For the positioning of contemporary sociolinguistic theory and practice, we conclude that it is the crucial task of the current public moment to critically self‐engage with our own relations with, and ideologies of, the public. Dieses Themenheft befragt Strukturen öffentlicher Diskursmacht in spätmoderner Gesellschaft und zeigt auf, dass spätmoderne Öffentlichkeit durch eine Destabilisierung von vormals unmarkierten Autoritäten ist, in anderen Worten, von standardisierten “voices from nowhere” (Gal & Woolard, 2001). Die Beiträge illustrieren Reaktionen traditioneller sozialer und akademischer Eliten hierauf. In dieser Einleitung skizzieren wir verschiedene theoretische Zugänge zu moderner und spätmoderner Öffentlichkeit, identifizieren Faktoren, die zu einer Destabilisierung von sozialen Gewissheiten der Moderne beitragen und legen dar, dass eine Schwächung traditioneller öffentlichen Normen nicht nur soziale Emanzipation impliziert sondern, wie die Beiträge zu diesem Heft zeigen, auch neue Formen öffentlicher Dominanz hervorbringt. In Bezug auf zeitgenössische soziolinguistische Theorie und Praxis schlussfolgern wir daraus, dass es im aktuellen öffentlichen Kontext eine zentrale Aufgabe der Soziolinguistik ist, sich kritisch mit den eigenen Beziehungen zu und Ideologien von Öffentlichkeit befassen. Das Themenheft soll zu dieser Auseinandersetzung beitragen.  相似文献   
2.
In 1984, Gabow and Tarjan provided a very elegant and fast algorithm for the following problem: given a matroid defined on a red and blue colored ground set, determine a basis of minimum cost among those with k red elements, or decide that no such basis exists. In this paper, we investigate extensions of this problem from ordinary matroids to the more general notion of poset matroids which take precedence constraints on the ground set into account. We show that the problem on general poset matroids becomes -hard, already if the underlying partially ordered set (poset) consists of binary trees of height two. On the positive side, we present two algorithms: a pseudopolynomial one for integer polymatroids, i.e., the case where the poset consists of disjoint chains, and a polynomial algorithm for the problem to determine a minimum cost ideal of size l with k red elements, i.e., the uniform rank-l poset matroid, on series-parallel posets.  相似文献   
3.
Human activities affect both the amount and configuration of habitat. These changes have important ecological implications that can be measured as changes in landscape connectivity. I investigated how urbanization interacts with the initial amount and aggregation of habitat to change dispersal potential, restoration potential, and the risk of spatially extensive disturbances. I used a factorial set of simulated landscapes and subjected each landscape to habitat loss by overlaying 66 different US urban areas. I used a common connectivity metric, CONNECT, to assess the magnitude and direction of changes for a range of dispersal distances. My results show that the relationship between habitat loss and connectivity loss is non-linear and subject to interactions between the spatial patterns of habitat distribution, urban morphology, and dispersal capabilities. The implications of a given urban form vary widely as a function of habitat distribution and dispersal capabilities. This implies that impact assessments, restoration activities, and conservation planning should consider historical habitat distribution when evaluating observed changes in connectivity. While my results clearly show that more aggregated or continuous habitats are more vulnerable to connectivity loss, this approach can also be used to identify landscapes where restoring connectivity will be particularly effective, for example through placement of stepping stone habitats.  相似文献   
4.
The following article describes the first empirical study of the effectiveness of Introvision as a pedagogical – psychological intervention for tinnitus. Introvision is based on the theory of subjective imperatives and the theory of mental introference. The intention was to ceace dysfunctional automatical selfregulation- strategies. Studies of the past have shown that dysfunctional selfregulation- strategies are a cause of increased subjective strain of tinnitus. The following pilot study, accomplished within a bigger project was conducted with 13 elder persons suffering from light to moderate tinnitus in a six-week-intervention with Introvision. Comparison to a control group without intervention showed a significant reduction of the tinnitus in the introvision group (STI, p ≤0.022). At the same time the audiometrically measured hearing ability of the Introvisiongroup increased significantly compared to the controlgroup (p≤0.001) while a decrease of the subjective loudness of the tinnitus could be only partially ascertained.  相似文献   
5.
This paper throws some light on changing family-building patterns in Sweden during the 1960s and 1970s. The family-building events analyzed are first informal cohabitation, first marriage, birth of first child (both outside a union and within a consensual union), and separations from childless informal cohabitation. Results from three previous studies are first summarized. These analyze the patterns by socio-economic and regional origin, applying multiple-decrement techniques separately for each background factor. The new results presented here are based on analyses that use multiplicative hazard models, permitting isolation of the effects of socio-economic background and region of childhood and adolescence respectively. It is generally found that socio-economic background is more important than the region where the woman grew up. Marriage intensities, however, which exhibit a clear regional pattern, are exceptions to this.  相似文献   
6.
We study how the impact of job loss, sickness, retirement, and family dissolution on the risk of relative income poverty differs between Germany and the United States, and whether the impact of these events has changed between 1980 and 2009. Americans are more likely than Germans to enter poverty after any of the four events, yet they also recover more quickly from job loss and family dissolution. Comparisons over time do not indicate a secular rise in the impact of critical life events on poverty risks, but our results show that poverty trajectories are subject to stronger cyclical fluctuations in the United States: Through its emphasis on market mechanisms, the liberal American welfare state raises the importance of (re-)employment opportunities for coping with the consequences of adverse life events. The absence of clear long-term trends leads to a reassessment of common views about welfare state change such as Jacob Hacker??s thesis of a ??Great Risk Shift?? or the notion of an ??Americanization?? of Continental European welfare states. So far, there is also little evidence that the often claimed recalibration of welfare states towards ??new social risks?? has alleviated the adverse economic consequences of family dissolution.  相似文献   
7.
Resistance training (RT) improves overall health, but the psychological effects of RT in healthy old adults have not been tested. The aim of this study was to investigate a sample of 65–70-year-old healthy and physically active women to assess their sense of coherence, health-related quality of life, hope, and affect, before and after taking part in a 24-week RT intervention (N = 14), compared to controls (N = 18). Findings showed a significant increase in hope (p = 0.013) and a significant decrease in negative affect (p = 0.002). Starting RT after age 65 does not appear to negatively impact on women’s psychological health but seems to be associated with important psychological health benefits.  相似文献   
8.
By taking explicit account of liability limitations, we analyse the influence of taxes on the simultaneous choice of organizational form and financing. In a two-state model for a single reporting period investors striving for maximisation of expected utility choose the organizational form (with or without liability limitation) in which they implement a given risky real investment and decide how they finance it (equity or debt). We demonstrate that liability limitations result in tax-relevant differences between organizational forms. Thus, for example, the tax bases differ in relation to the chosen liability-contingent debt capital compensations as well as to tax loss offset rules. Therefore, even in the event of identical tax rates, taxes can influence the decision regarding the organizational form.  相似文献   
9.
This study examined the relation between health behavior and risk perceptions in the context of an acute livestock epidemic. Participants in a longitudinal web-based survey ( N = 195) were asked to report their meat consumption and their perceived risk in relation to bovine spongiform encephalopathy (BSE) and other related livestock diseases. Cross-sectional analyses at both measurement points (T1 and T2) showed that participants with low levels of preventive nutrition (high meat consumption) felt more at risk for BSE-related diseases than those reporting comparable higher levels of preventive behavior (low meat consumption), indicating relative accuracy. These results suggest that people recognize when their behavior is risky. More importantly, perceived risk also showed adaptive accuracy from a change perspective: increases in preventive nutrition from T1 to T2 were significantly associated with decreases in perceived risk between T1 and T2. Possible foundations and implications of an adaptive accuracy of risk perceptions are discussed.  相似文献   
10.
This paper demonstrates some striking and sometimes initially surprising differentials and developments in Swedish fertility patterns during the 1960s and 1970s. The surprise will often have been due to untenable preconceptions. For instance, we question the assumption that the opportunity cost of a second or third birth is necessarily higher for Swedish women with a better education, or otherwise with a firm position in the labour force than for others. In our opinion, the situation may plausibly be the reverse. Also, total time in the labour force has turned out not to be the useful predictor of demographic behaviour that economists seem to have expected. A more adequate summary of a woman's employment history should capture more directly her role orientation and any signals of changes in childbearing and employment plans. Her early demographic history seems to contain similar information for the analyst, manifested here as a strong influence of age at first birth and first inter-birth interval on third-birth intensities. All in all, a woman's personal values and life course strategy (whether deliberately chosen or pressed upon her by accident and circumstances) appear as the strongest determinants of her childbearing behaviour, while income effects and opportunity cost differentials are valuable concepts which provide an understanding of more marginal changes and marginal differences. Perhaps a main outcome of the many-faceted developments over the last quarter-century has been the emerging dominance of the two-child norm and the ability to live up to it, while more directly measurable influences have been reduced to mediators.  相似文献   
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