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31.
Standard errors of the coefficients of a logistic regression (a binary response model) based on the asymptotic formula are compared to those obtained from the bootstrap through Monte Carlo simulations. The computer intensive bootstrap method, a nonparametric alternative to the asymptotic estimate, overestimates the true value of the standard errors while the asymptotic formula underestimates it. However, for small samples the bootstrap estimates are substantially closer to the true value than their counterpart derived from the asymptotic formula. The methodology is discussed using two illustrative data sets. The first example deals with a logistic model explaining the log-odds of passing the ERA amendment by the 1982 deadline as a function of percent of women legislators and the percent vote for Reagan. In the second example, the probability that an ingot is ready to roll is modelled using heating time and soaking time as explanatory variables. The results agree with those obtained from the simulations. The value of the study to better decision making through accurate statistical inference is discussed.  相似文献   
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33.
With proceeding internationalization and globalization of society the demands of working life have changed in the last decades. To meet these demands executives and professionals cooperating with foreign partners abroad or in Germany need the central key qualification of intercultural competence. This important key qualification does not evolve automatically from intercultural experiences, but has to be acquired during an extensive learning process, which is mainly organized in intercultural trainings. This text first describes what intercultural competence is and how it is developed. Based on scientific findings on developmental stages of intercultural competence central aspects of intercultural trainings are covered in detail. Objectives and methods of various intercultural training formats are outlined to illustrate the conceptualization and outcomes of learning effective trainings. The text concludes with future developments of intercultural training in the light of expatriates facing increasing demands regarding the quality of their work. Trainee groups will become more culturally heterogeneous, more trainings will be needed that moderate acculturation processes while staying abroad, training contents and methods have to be adapted according to local customs, modern information technology will play a major role, and family members coming along have to be involved in the training process.  相似文献   
34.
Transfer Pricing in Transition Economies: Evidence from Ukraine   总被引:1,自引:1,他引:0  
Faced with possibilities and challenges of doing business under different regulatory regimes, transnational corporations have developed a number of transfer mechanisms to take advantage of profit maximization opportunities. Transfer pricing is a transfer mechanism widely used by transnational corporations. Implications of transfer pricing for profitability and the need for transfer pricing regulation are well understood by national governments, which is reflected in the fact that more than 60 governments have introduced some form of transfer pricing controls. Transfer pricing is a challenging issue for transition economies as their transfer pricing regulatory systems are less mature than those of developed countries. The authors have initiated an empirical study on transfer pricing strategies in the Ukrainian market. In addition, the national regulatory regime for transfer pricing was evaluated compared to international best practices. This article is an attempt to draw attention of the research community and Ukrainian policy-makers to transfer pricing issues in Ukraine.   相似文献   
35.
Social Indicators Research - A future-oriented spatial planning has to face the challenges of integrating ecological, social, and economic aspects of living. This is often seen as a principle to...  相似文献   
36.
A common risk among adolescents is sexual solicitation, in which an adolescent is asked to provide sexual information, engage in sexual talk, or in sexual activities. Although scholars increasingly address this topic from an intrapersonal perspective, there is little attention to factors of language use and message content. In two focus group studies, we investigated whether adolescent girls consider themselves capable of assessing whether an online stranger is an adult or a peer, the extent to which adolescent girls actually succeed in making this assessment, the strategies they apply to do so, and the content- and language-related cues focused on. Our findings suggest that most of the adolescent girls are confident in their ability to assess whether the stranger is a peer or an adult with possible sexual intentions. However, we also found that only 43% were able to correctly make this assessment. Most of the adolescents seem to apply the passive strategy of uncertainty reduction: They scan the profile page of the stranger, check contact information, and the profile picture. They may choose to apply the interactive strategy to find out more about the online stranger. Important content-related cues that alarm adolescent girls are: ignoring personal questions, showing an exaggerated amount of interest, acting as a friend, and being sexually oriented. Language cues mentioned related to word usage, abbreviations, sentence length, and tone.  相似文献   
37.
Reproductive medicine and assisted reproduction therapies have been developed over the last decades resulting in over five million babies. The handling of human reproductive materials and patients is based on the ability to combine health care work and techno-scientific expertise in both the clinic and the laboratory setting. This study of Swedish assisted reproductive technology clinics demonstrates that the active day-to-day manipulation of human reproductive materials enact both the ‘profane’, through treating the embryos as raw materials in standardized procedures enabling economies of scale, and the ‘sacred’ through enacting a separation, the potential to human life, the patients ordeals, and seriousness. The enactment of the profane and the sacred is mostly balanced but at certain points in the work procedures, their intersecting becomes particularly salient. Such points provide opportunities for the study of the sense making of professionals in organizational grey zones, during techno-scientific activities.  相似文献   
38.
Unclaimed prize information (i.e., the number of prizes still available to be won) is information commonly provided to scratch card gamblers. However, unless the number of tickets remaining to be purchased is also provided, this information is uninformative. Despite its lack of utility in assisting gamblers in choosing the most favourable type of scratch card to play, we hypothesized that unclaimed prize information would bias participants’ judgments within a scratch card gambling context. In Experiment 1 (N?=?201), we showed that participants are influenced by this information such that they felt more likely to win, were more excited to play, and preferred to hypothetically purchase more of the scratch card with the greatest number of unclaimed prizes. In Experiment 2 (N?=?201), we attempted to ameliorate this bias by providing participants with the number of tickets remaining to be purchased and equating the payback percentages of all three games. The bias, although attenuated, still persisted in these conditions. Finally, in Experiment 3 (N?=?200), we manipulated the hypothetical scratch cards such that games with the highest number of unclaimed prizes were the least favourable, and vice versa. As in Experiment 2, participants still favoured cards with greater numbers of unclaimed prizes. Possible mechanisms underlying this bias are discussed. In conclusion, across three experiments, we demonstrate that salient unclaimed prize information is capable of exerting a strong effect over judgments related to scratch card games.  相似文献   
39.
Urban Ecosystems - Green roofs have recently gained recognition for their potential contribution to urban ecosystems by providing, among other services, habitat for plants and animals, and stepping...  相似文献   
40.
Controversies arising from the notification of large areas of land as Sites of Special Scientific Interest in northern Scotland are reviewed against the background of surveys of land occupiers' experiences on the one hand, and of trends in conservation thinking in the wider world on the other. Most of the protected area is of low capability for productive land use, and there is little evidence of adverse trends in labour and employment on SSSIs compared with similar, non-SSSI land. Site designation has in practice impeded land management in the cases of relatively few land occupiers, but rather more have negative attitudes towards it. It is concluded that some elements of the ‘scientific colonialism’ model of protected areas can be detected.  相似文献   
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