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61.
Pallanti S DeCaria CM Grant JE Urpe M Hollander E 《Journal of gambling studies / co-sponsored by the National Council on Problem Gambling and Institute for the Study of Gambling and Commercial Gaming》2005,21(4):431-443
The Yale Brown Obsessive Compulsive Scale adapted for Pathological Gambling (PG-YBOCS) was developed to measure the severity
and change in severity of pathological gambling symptoms. The PG-YBOCS is a 10-item clinician-administered questionnaire that
measures the severity of PG over a recent time interval (usually within the past one/two week(s)). In order to assess and
validate the scale, it was administered to 337 subjects: 188 pathological gamblers and 149 healthy controls. Internal consistency
and correlations between individual items and total score were assessed for various permutations of the sample. Other scales
were administered to assess convergent, discriminant and content validity. Sensitivity to change was evaluated in treatment
studies with fluovoxamine, lithium, and valproate. Each item was frequently endorsed across a range of severity. Good inter-rater
reliability and internal consistency were obtained. The PG-YBOCS showed high validity and reliability for total score, item-total
correlations, and for each subscale (Thoughts/Urges and Behavior). PG-YBOCS scores correlated with global severity and South
Oaks Gambling Screen (SOGS) scores. The scale was also sensitive to change in pathological gambling severity. PG-YBOCS thus
appears to be a reliable and valid measure of pathological gambling severity, and can be regarded as an important tool for
clinicians and researchers treating pathological gamblers. 相似文献
62.
The motivation of the present work is to provide an auxiliary tool for the decision-maker (DM) faced with predictive model uncertainty. The tool is especially suited for the allocation of R&Dresources. When taking decisions under uncertainties, making use of the output from mathematical or computational models, the DM might be helped if the uncertainty in model predictions be decomposed in a quantitative-rather than qualitativefashion, apportioning uncertainty according to source. This would allow optimal use of resources to reduce the imprecision in the prediction. For complex models, such a decomposition of the uncertainty into constituent elements could be impractical as such, due to the large number of parameters involved. If instead parameters could be grouped into logical subsets, then the analysis could be more useful, also because the decision maker might likely have different perceptions (and degrees of acceptance) for different kinds of uncertainty. For instance, the decomposition in groups could involve one subset of factors for each constituent module of the model; or one set for the weights, and one for the factors in a multicriteria analysis; or phenomenological parameters of the model vs. factors driving the model configuratiodstructure aggregation level, etc.); finally, one might imagine that a partition of the uncertainty could be sought between stochastic (or aleatory) and subjective (or epistemic) uncertainty. The present note shows how to compute rigorous decomposition of the output's variance with grouped parameters, and how this approach may be beneficial for the efficiency and transparency of the analysis. 相似文献
63.
Global imbalances, exchange rates adjustment and the crisis: Implications from network analysis 总被引:2,自引:0,他引:2
The persistence of global imbalances remains a potential source of instability for the international economic system, which ought to be tackled in order to exit from the current crisis in a better position. This paper shows that the complexity of the global network of trade imbalances has increased over time in terms of the number of countries involved and of the heterogeneity of their conditions. These findings imply that orchestrating a global exchange rate adjustment plan, as done in the 1980s to tackle a similar problem, is certainly more difficult than it was 20 years ago. We also show, however, that the uncoordinated movements in bilateral exchange rates occurred since the early 2000s did not go in the direction of reducing bilateral imbalances. Rebalancing the world economy, thus, seems to require a rich set of coordinated policy actions and economic changes, involving adjustments in both exchange rates and real variables, which are heterogeneous at the country level. We argue that, provided some conditions are satisfied, the variegated effects of the ongoing financial crisis, and the policy responses this has induced, may help the global and bilateral rebalancing process. 相似文献
64.
Sylvain Barone 《Sociologie du Travail》2008,50(4):471-488
Public transit is now a major power exercised by regions in France. The regionalization of public transportation, which started in the early 1980s, is analyzed in relation to a new pattern of major players, namely: the central government, local authorities and the French national railway system (SNCF). This pattern has emerged as a compromise, has gradually been worked out between two rationales: the one advocating a revival of local rail services; and the other, the preservation of funding by the state and the SNCF. Arising out of a work of mediation and out of strategies for enlisting reformers (mainly among politicians and from the SNCF) into a coalition, this compromise has bought about an ambiguous consensus among elected officials from left- and right-wing parties, executives from the SNCF, elected regional officials and representatives of railway workers who do not all share a priori either the same interests or the same conception of the general interest. 相似文献
65.
In this study, we present a generalization of spatial power indexes able to overcome their main limitations, namely (i) the excessive concentration of power measures; (ii) the too high sensitivity to players’ location in the ideological space. Voters’ propensity to support an issue is modeled via a random utility function with two additive terms: the deterministic term accounts for voters’ preference-driven/predictable behavior; the random one is a catch-all term that accounts for all the idiosyncratic/unpredictable factors. The relative strength of the two terms gives rise to a continuum of cases ranging from the Shapley value, where all aggregation patterns are equally probable, to a standard spatial value, like the Owen–Shapley index, where instead the conditional order is fully deterministic. As an illustrative application, we analyze the distribution of power in the Council of Ministers under three different scenarios: (i) EU15 Pre-Nice; (ii) EU27 Nice Treaty; (iii) EU27 Lisbon Treaty. 相似文献
66.
Social Indicators Research - The UN Sustainable Development Goals have set clear targets on global poverty, hunger and malnutrition to be achieved by 2030, which have prompted academics and... 相似文献
67.
This paper analyses both theoretically and empirically the effects of immigration on the wage rate of native workers. There is rare evidence in empirical literature that immigration generates a fall in the wages of manual workers. By hypothesizing an economic system where advanced firms buy an intermediate good from traditional firms, which employ manual workers in both clean and dirty tasks, the latter being more disliked by native workers, we present a theoretical model that justifies these results. We conclude that native skilled wages always increase whereas native unskilled wages can both increase or decrease with immigration. An empirical analysis of the Italian labour market follows, showing that native workers' wages always rise with immigration. 相似文献
68.
Power is a central, but largely undertheorized, concept for scholars of global value chains (GVCs). In this introduction to a special issue on power and inequality in GVCs, the authors summarize the key insights from the articles gathered here and explain how the collection advances our understanding of the types and forms of power operating in GVCs and their effect on different dimensions of inequality. 相似文献
69.
Stefano Tartaglia 《Social indicators research》2013,113(3):1045-1053
The present study aimed at comparing the effects of different sets of predictors on quality of life in an urban environment. We used secondary data collected by means of a self-report questionnaire on a sample of 343 residents of a big Italian city. The questionnaire included a multidimensional scale elaborated by the World Health Organization (WHOQoL brief scale) assessing quality of life in terms of four different evaluations concerning distinct aspects of life: physical health; psychological status; social relationships; environment. Four different types of predictors were considered: (1) socio-demographic characteristics; (2) quality of social relations (perceived social support); (3) place attachment; (4) healthy lifestyle. To test the influence of different groups of predictors on the dimensions of WHOQoL we performed four hierarchical regression analyses. Several significant influences were found. In particular the results pointed out the great role of perceived social support and place attachment in promoting quality of life. That result suggests the importance of community interventions in urban environment. 相似文献
70.
Thirty-three years ago Islamic banking was considered wishful thinking. However, serious research over the past two-and-a-half
decades has shown that Islamic banking is not only feasible and viable, but is an efficient and productive way of financial
intermediation. A number of Islamic banks have also been established during this period in Jordan. The objective of this paper
is to examine the structure and performance of the Islamic banking industry in Jordan during the period 2000–2006. We find
that the Jordanian Islamic banking industry is still in its infancy compared to a number of countries in the region and there
is a growth trend in the financial services market, despite its current concentration and limited size. 相似文献