نتایج جستجو برای: 20 march
تعداد نتایج: 676860 فیلتر نتایج به سال:
This paper takes a new look at the long-run implications of resource abundance. Using a Schumpeterian growth model that yields an analyitical solution for the transition path, it derives conditions under which the “curse of natural resources” occurs and is in fact a curse, meaning that welfare falls, conditions under which it occurs but it is not a curse, meaning that growth slows down but welf...
Article history: Received 23 October 2011 Received in revised form 20 February 2012 Accepted 20 February 2012 Available online 9 March 2012
Article history: Available online 20 March 2015
Short lead-time forecasts using the operational United Kingdom variable-resolution (UKV) configuration of the Met Office's numerical weather prediction model, with horizontal grid-length 1.5 km over the UK, with and without a representation of the 20 March 2015 eclipse, have been used to simulate the impact of the eclipse on UK weather. The major impact was surface-driven through changes to sur...
Introduction The Protection from HIV: Targeted Intervention Strategies conference was held at the Whistler Conference Center in Canada, from March 20th to 25th, this year. It was part of the meeting season in celebration of the 40th anniversary of the Keystone Symposia. Two hundred and seven researchers from all continents were present at the meeting. Current topics in viral pathogenesis, thera...
Single unit activity in the neostriatum of awake monkeys shows a marked dependence on expected reward. Responses to visual cues differ when animals expect primary reinforcements, such as juice rewards, in comparison to secondary reinforcements, such as tones. The mechanism of this rewarddependent modulation has not been established experimentally. To assess the hypothesis that direct neuromodul...
The British Isles benefits from dense meteorological observation networks, enabling insights into the still-unresolved effects of solar eclipse events on the near-surface wind field. The near-surface effects of the solar eclipse of 20 March 2015 are derived through comparison of output from the Met Office's operational weather forecast model (which is ignorant of the eclipse) with data from two...
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