منابع مشابه
Time to ditch Occupational Health.
We have all seen the quizzical look on the face of the enquirer at a social event as to what kind of doctor we are when we say occupational physician. Neither of these words is well understood and they smack of unnecessary elitism. The first is usually linked with therapist and probably, by association, basket weaving and is the second something to do with the science of physics? This is not a ...
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Wetland areas are frequently managed by manipulating the water levels in the surrounding ditches, with the aim of restoring or enhancing the wetness of the site, especially for the ecological requirements of some bird populations. The extent to which water tables in the centre of fields can be controlled by this action can be simulated through the use of a model, Drain Interaction with Channel ...
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The last-ditch defence against the anti-ship missile is the close-in weapon system (CIWS), which takes the form of ultra-short range lightcalibre guns by putting a “wall of lead” in the path of the oncoming missile. This is after the missiles have “leaked” through the layers of hardkill and softkill defences. Systems like the American Phalanx, the Dutch Goalkeeper or the new German Millennium G...
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ژورنال
عنوان ژورنال: Journal of Economic Perspectives
سال: 1997
ISSN: 0895-3309
DOI: 10.1257/jep.11.1.93