منابع مشابه
Health impacts of coal: facts and fallacies.
Coal has contributed enormously to the advance of civilization by providing an abundant, inexpensive, and convenient source of energy. Concurrent with its contributions, coal has extracted a high cost in terms of environmental damage and human health impacts. Coal will remain a key component of the global energy mix for decades to come as well as a major source of global pollutants. Despite its...
متن کاملStudy of Gas Environment Impacts on Volumetric Coal Matrix Changes
The Outburst can be defined as a sudden release of coal and rock accompanied by large quantities of gas into the underground coal mine workings which represents a major hazard in underground coal mines. Gas drainage has been proven to be successful in reducing outburst hazards by decreasing the in-situ gas pressure. One of aspect of gas drainage from coal seams is coal matrix volume changes. Cu...
متن کاملPesticide use and economic impacts on health.
OBJECTIVE To estimate the externalities associated with acute poisoning from pesticides. METHODS The probabilities of acute poisoning were estimated according to characteristics of rural properties and cities in the state of Paraná, Southern Brazil. Information about acute poisoning obtained from the 1998-1999 Harvest Forecast Survey was used. The expected costs with poisoning in these proper...
متن کاملContract Parameters’ Impacts on Coal Prices
The use of long-term contracts in the procurement of coal for electricity generation is common. The data that is observed from contracts and their transactions are from different levels of the pricing process. Contracts contain the parameters by which all future deliveries are structured, specifying the length of the agreement and acceptable coal attributes. Based on these parameters, a price i...
متن کاملeffect of listening strategy training on iranian efl learners listening comprehension and use of strategies
this study aimed to investigate the effects of listening strategy training on iranian efl learners listening comprehension and use of such strategies. this work, employing an experimental methodology, was conducted among 60 adult efl learners from a language institute in isfahan, iran, as participants. the participants, who were selected based on the results of a placement test, were assigned t...
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ژورنال
عنوان ژورنال: Annual Review of Public Health
سال: 2020
ISSN: 0163-7525,1545-2093
DOI: 10.1146/annurev-publhealth-040119-094104