منابع مشابه
World energy demands and coal reserves
Spotreba svetovej energie a zásoby uhlia On the basis of the expected increase in the world’s population and taking the estimated improvement in both technology and living standards into account, the paper forecasts energy demands. In 2000, actual energy consumption was 380-400 EJ.year, the forecast for the year 2050 is 600-1,050 EJ.year, while for the year 2100 it is 900-3,600 EJ.year. On the ...
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This paper analyzes South Africas Free Basic Water Policy, under which households receive a free water allowance equal to the World Health Organizations recommended minimum of 6 kiloliters per month. I structurally estimate residential water demand, evaluate the welfare e¤ects of free water, and provide optimal price schedules derived from a social planners problem. I use a unique dataset of...
متن کاملHand injuries in south Wales coal miners.
Fifty eight coal miners attended the Royal Gwent Accident and Emergency Department with serious hand injuries over a three year period. The commonest cause of the injuries was falling rock or coal from the pit roof crushing the hand and the commonest type of injury was the crushed, compound fracture of the terminal phalangeal area of the digit, with or without pulp loss. Records of the time off...
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ژورنال
عنوان ژورنال: South African Journal of Science
سال: 2010
ISSN: 1996-7489,0038-2353
DOI: 10.4102/sajs.v106i9/10.369