نتایج جستجو برای: indirect
تعداد نتایج: 80014 فیلتر نتایج به سال:
We consider a mathematical model for the indirect transmission via a contaminated environment of a microparasite between two spatially distributed host populations having non-coincident spatial domains. The parasite is benign in a first population and lethal in the second one. Global existence results are given for the resulting reaction-diffusion system coupled with an ordinary differential eq...
This paper elaborates on the following correspondence theorem (which has been defended and formally proved elsewhere): if theory T has been empirically successful in a domain of applications A, but was superseded later on by a different theory T* which was likewise successful in A, then under natural conditions T contains theoretical expressions φ which were responsible for T's success and corr...
Theory presents two channels through which profit sharing can increase worker training. First, it directly increases training by alleviating hold-up problems and/or encouraging co-workers to provide training. Second, it indirectly increases training by reducing worker separation and increasing training investment’s amortization period. This paper provides the first attempt at separately identif...
Beauty Is the Promise of Happiness”? We measure the impact of individuals’ looks on their life satisfaction or happiness. Using five data sets from the U.S., Canada, the U.K., and Germany, we construct beauty measures in different ways that allow putting a lower bound on the true effects of beauty on happiness. Personal beauty raises happiness, with a one standard-deviation change in beauty gen...
It is well established that people perceive streaks where they do not exist. However, little is known about what constitutes a streak in the mind of an observer. This paper proposes that the third repeat event in a sequence is pivotal to the subjective belief that a streak is occurring. In five studies, we find direct and indirect evidence that perceived streakiness plateaus with the third repe...
Research has shown service learning to have an impact on the development of students' professional knowledge and skills as well as their social awareness. However, there has been limited empirical research conducted regarding the benefits of service learning in the area of IS. Unlike service learning projects in other disciplines, where the service activity facilitates direct contact between th...
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In this paper, an age-structured epidemic model is formulated to describe the transmission dynamics of cholera. The PDE model incorporates direct and indirect transmission pathways, infection-age-dependent infectivity and variable periods of infectiousness. Under some suitable assumptions, the PDE model can be reduced to the multi-stage models investigated in the literature. By using the method...
Legal Disclaimer The information in this document is provided 'as is', and no guarantee or warranty is given that the information is fit for any particular purpose. The above referenced consortium members shall have no liability for damages of any kind including without limitation direct, special, indirect, or consequential damages that may result from the use of these materials subject to any ...
In MCIs (mass casualty incidents) patient tracking is cumbersome when using paper based approaches. Due to the fact that the spatial positions of the patients are essential in MCIs, we equipped the relief workers with electronic devices. We analyzed two concepts for patient tracking: direct and indirect tracking. The indirect tracking turned out to be superior with regard to the requirements fr...
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