منابع مشابه
High Hopes and Disappointment
We study preferences for which choosing high expectations about the future make us happy now but make us unhappy later if they are not realized. These preferences generalize the recursive utility of Kreps-Porteus and Epstein-Zin. Like recursive utility agents, our agents care about the time resolution of uncertainty, but our agents are not purely forward-looking. For example, two agents with th...
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Floods did not deter people from coming for the vaccine. September 2006: phase III of a clinical trial of a bivalent, oral cholera vaccine was under way in a neighbourhood of Kolkata in eastern India. As in any clinical trial, this was a critical stage: the vaccine was being given to large groups of people to confirm its effectiveness, monitor side-effects and collect information that would all...
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In this issue of the Chinese Journal of Cancer, European experts review current standards, trends, and future prospects in the difficult domain of high-grade glioma. In all fields covered by the different authors, the progress has been impressive. For example, discoveries at the molecular level have already impacted imaging, surgery, radiotherapy, and systemic therapies, and they are expected t...
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This report by the Consortium for Policy Research in Education (CPRE) focuses squarely on strategies for instructional improvement in American high schools. Specifically, this study examines how high schools that perform below average incorporate their state’s accountability goals into their own goals, identify their challenges, and search for strategies for instructional improvement. We focus ...
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A new technique for sorting male and female mosquito larvae may lead to the use of sterile males in tackling malaria. Nigel Williams reports. the testicles of the male mosquitoes fluorescent, allowing the scientists to distinguish and easily separate them from females. The plan is to breed, sterilize and release millions of these male insects so they mate with females but produce no offspring. ...
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ژورنال
عنوان ژورنال: Nature
سال: 1994
ISSN: 0028-0836,1476-4687
DOI: 10.1038/367322a0