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21.
Haslbeck A Schubert E Onnasch L Hüttig G Bubb H Bengler K 《Work (Reading, Mass.)》2012,41(Z1):178-183
This paper describes an experimental study investigating pilots' manual flying skills. In today's line oriented flight training, basic flying skills are neglected frequently. So, the study examines the manual flying skills of commercial airline pilots under the influence of several performance shaping factors like training, practice or fatigue in a landing scenario. The landing phase shows a disproportionate high percentage of aircraft accidents and it is typically flown by hand. The study is to be undertaken with randomly selected pilots in a full motion flight simulator to ensure a high validity of the results. 相似文献
22.
There has been considerable interest in studying the magnitude and type of inheritance of specific diseases. This is typically derived from family or twin studies, where the basic idea is to compare the correlation for different pairs that share different amount of genes. We here consider data from the Danish twin registry and discuss how to define heritability for cancer occurrence. The key point is that this should be done taking censoring as well as competing risks due to e.g. death into account. We describe the dependence between twins on the probability scale and show that various models can be used to achieve sensible estimates of the dependence within monozygotic and dizygotic twin pairs that may vary over time. These dependence measures can subsequently be decomposed into a genetic and environmental component using random effects models. We here present several novel models that in essence describe the association in terms of the concordance probability, i.e., the probability that both twins experience the event, in the competing risks setting. We also discuss how to deal with the left truncation present in the Nordic twin registries, due to sampling only of twin pairs where both twins are alive at the initiation of the registries. 相似文献
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25.
Klaus Starke 《Journal of Risk and Uncertainty》1990,3(1):3-3
Editorial announcement 相似文献
26.
Klaus Mainzer 《Poiesis & praxis》2011,7(4):275-289
In the age of globalization, economic growth and the welfare of nations decisively depend on basic innovations. Therefore,
education and knowledge is an important advantage of competition in highly developed countries with high standards of salaries,
but raw material shortage. In the twenty-first century, innovations will arise from problem-oriented research, crossing over
traditional faculties and disciplines. Therefore, we need platforms of interdisciplinary dialogue to choose transdisciplinary
problems (e.g., environment, energy, information, health, welfare) and to cluster new portfolios of technologies. The clusters
of research during the excellence initiative at German universities are examples of converging sciences. The integration of
natural and engineering sciences as well as medicine can only be realized if the research training programs (e.g., graduate
schools) generate a considerable added value in terms of multidisciplinary experience, international networking, scientific
and entrepreneurial know-how, and personality development. The Carl von Linde-Academy is presented as an example of an interdisciplinary
center of research and teaching at the Technical University of Munich. 相似文献
27.
Organisations are marked by contradictions: change and continuity, health and sickness, men and women, creativity and linearity, past and future and freedom and restriction are only a few poles in which these contradictions are made visible. Organisations try to give answers to these contradictions and give space for both: freedom and restriction. Here, systems and individuals are related in mutual challenge and in permanent negotiation. It is therefore important for management and employee to reflect on the preconditions for the chance of freedom and restriction. The organisation has to provide the possibility to legitimize the ‘Management of Paradox’ in order to generate answers which are necessary to guide change and contradiction. 相似文献
28.
In this paper we determine the Gauss–Markov predictor of the nonobservable part of a random vector satisfying the linear model
under a linear constraint. 相似文献
29.
We show that unexpected price‐level movements generate sizable wealth redistribution in the Euro Area (EA), using sectoral accounts and newly available data from the Household Finance and Consumption Survey. The EA as a whole is a net loser of unexpected price‐level decreases, with Italy, Greece, Portugal, and Spain losing most in per capita terms, and Belgium and Malta being net winners. Governments are net losers of deflation, while the household (HH) sector is a net winner in the EA as a whole. HHs in Belgium, Ireland, Malta, and Germany experience the biggest per capita gains, while HHs in Finland and Spain turn out to be net losers. Considerable heterogeneity exists also within the HH sector: relatively young middle class HHs are net losers of deflation, while older and richer HHs are winners. As a result, wealth inequality in the EA increases with unexpected deflation, although in some countries (Austria, Germany, and Malta) inequality decreases due to the presence of relatively few young borrowing HHs. We document that HHs' inflation exposure varies systematically across countries, with HHs in high‐inflation EA countries holding systematically lower nominal exposures. 相似文献
30.