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991.
992.
Jefferson A. Singer Laura A. King Melanie C. Green & Sarah C. Barr 《The Journal of social issues》2002,58(3):535-556
Twenty–two students in a community action certificate program supplied "rising to the occasion" narratives during summer–long internships. They also filled out measures of generativity. Twenty–one students in an international studies certificate program that also included a summer internship served as a comparison group. Both groups reported equal personal growth from rising to the occasion experiences and no differences on measures of optimism, self–esteem or generativity. However, the community action students linked their personal growth experiences to future community service; a regression analysis also revealed that the best predictor of their stress–related growth was their level of generative concern. No comparable links emerged for the comparison group. Implications for cultivating connections between personal identity and civic responsibility through service–learning are discussed. 相似文献
993.
Contemporary changes in rural Europe have been characterised by the contrasting terms of rural modernisation and productivism versus restructuring and post-productivism. This study investigates how different categories of owners of farm and/or forestland in 16 case study areas in eight European countries perceive future development. Landowners’ prospects for change are investigated on both the locality and enterprise level. Special attention is given to the role of forestry as a potential future development perspective. The results reveal that both restructuring and modernisation perspectives are important to many landowners. Moreover, a polarisation seems to be developing between a minority of full-time farmers with progressive farming prospects and the vast majority of landowners with declining prospects or little dependency on primary production. More importantly, the research reveals a third employment perspective, which did not have any specific content apart from the social security of having employment opportunities in the locality. Also at the enterprise level, farmers anticipate both restructuring and modernisation practices, even on the very same property. The study proves that it is not only part-time, hobby and retired farmers that are engaged in “restructuring” activities, but also full-time farmers. As regards the role of forests, the majority of landowners do not interpret forests in an economic development context, but as green infrastructure important to the local quality of life. It can be concluded that forests are closely related to restructuring thinking among landowners. Future perspectives differ from one European rural area to another, dependent on local conditions and problems. More importantly, however, this research reveals that modernisation–restructuring thoughts and practices of landowners are manifold and heterogeneous in all types of rural areas across Europe. 相似文献
994.
995.
This paper examines an unregulated transaction services market that is subject to financial innovation in an economy that experiences aggregate supply and demand shocks. The availability of this unregulated market to transactors smooths the price response to these shocks. However, financial innovations act as money supply shocks that increase price disturbances. If there is persistence in the real aggregate supply shocks and in the rate of adoption of financial innovations, then the central bank can forecast some portion of the changes in transaction requirements that accompany these shocks and damp the residual variation in prices by accommodating these anticipated needs. 相似文献
996.
997.
James H. Albert 《Revue canadienne de statistique》1990,18(4):347-363
One method of testing for independence in a two-way table is based on the Bayes factor, the ratio of the likelihoods under the independence hypothesis H and the alternative hypothesis H. The main difficulty in this approach is the specification of prior distributions on the composite hypotheses H and H. A new Bayesian test statistic is constructed by using a prior distribution on H that is concentrated about the “independence surface” H. Approximations are proposed which simplify the computation of the test statistic. The values of the Bayes factor are compared with values of statistics proposed by Gunel and Dickey (1974), Good and Crook (1987), and Spiegelhalter and Smith (1982) for a number of two-way tables. This investigation suggests a strong relationship between the new statistic and the p-value. 相似文献
998.
We estimate the death rate of United States troops deployed to Iraq from the beginning of the US invasion through 30 September 2006. Eighty percent of the deaths in Iraq were combat‐related. The death rate in Iraq is lower than that of the civilian population of the United States but substantially higher than that of young adults. It is much lower than the death rate of US troops in Vietnam, in part because a much smaller fraction die among those wounded in Iraq. We also estimate relative mortality levels for US troops according to numerous demographic variables through 30 November 2006. The risk of death in Iraq per deployment is shown to be highest for Marines; Naval and Air Force personnel in Iraq have lower death rates than the civilian population of comparable age. Other categories with above‐average mortality in Iraq are enlisted troops, males, younger persons, and Hispanics. 相似文献
999.
Valarie King 《Journal of marriage and the family》2007,69(5):1178-1193
Using data on 294 adolescents from the National Longitudinal Study of Adolescent Health who live with a biological father and have both a resident stepmother and a nonresident biological mother, this study examines the prevalence, antecedents, and consequences of adolescents’ closeness to each of their parents. Findings demonstrate that adolescents vary in their likelihood of having close relationships to resident fathers, resident stepmothers, and nonresident biological mothers, but when they can do so, they appear to benefit. Close relationships with both resident fathers and nonresident mothers are associated with fewer adolescent internalizing and externalizing problems. Closeness to resident stepmothers, however, is unrelated to these two outcomes. Results suggest that fathers play a particularly important role in these families. 相似文献
1000.