نتایج جستجو برای: smoke abatement
تعداد نتایج: 75929 فیلتر نتایج به سال:
mother's and infant exposure to cigarette smoke is one of the most important public health problems. there is no study in iran evaluating the impact of cigarette smoke on infant growth and development. the purpose of this study was to determine the effects of cigarette. this prospective cohort study was conducted on 51 cigarette smoke-exposed infants (exposed group) and 51 non-exposed infants (...
this study was initiated to assess the effectiveness of designating smoking rooms to control environmental tobacco smoke in nursing homes. of the 39 nursing homes located in toledo (a city in ohio, usa) included in the preliminary survey, 33 facilities (85%) allowed smoking, 14 facilities (36%) allowed indoor smoking, and 13 facilities (33%) provided a designated smoking area. three of these 13...
Introduction: According to studies, high intake of fruits and vegetables are associated with reduced cancer incidence and mortality. The high levels of antioxidants in fruits and vegetables are believed to contribute in cancer prevention, possibly by inhibiting oxidative stress. This study aimed to investigate the effects of cigarette smoke, alcohol and vitamin E and vitamin C on oral mucosa an...
As environmental standards become more stringent (e.g. European Directive 2008/50/EC), more reliable and sophisticated modeling tools are needed to simulate measures and plans that may effectively tackle air quality exceedances, common in large cities across Europe, particularly for NO2. Modeling air quality in urban areas is rather complex since observed concentration values are a consequence ...
This paper studies the effects of global warming in a descriptive model of endogenous growth. It is assumed that deviations from the pre-industrial global surface temperature negatively affect aggregate output. The paper studies the effects of varying the tax rate and of different abatement activities on the emission of greenhouse gases and on the growth rate. We study both effects for the long...
Discounting the value of emission credits has been proposed as a possible approach for addressing some of the shortcomings of the Clean Development Mechanism (CDM). It could be used to compensate for non-additional CDM projects; to increase the incentive for advanced developing countries to move from the CDM to own mitigation commitments; and to improve the competitiveness of less developed cou...
We compare the effects of taxes and quotas for an environmental problem where the regulator and polluter have asymmetric information about abatement costs, and environmental damage depends on pollution stock. An increase in the slope of the marginal abatement cost curve, or a decrease in the slope of the marginal damage curve, favors taxes. An increase in the discount rate or the stock decay ra...
We ask whether the threat of carbon tariffs might lower the cost of reductions in world carbon emissions by inducing unregulated regions to adopt emission controls. We use a calibrated simulation model to generate the payoffs of a game in which a coalition regulates its own emissions and chooses whether or not to employ carbon tariffs against unregulated regions. Unregulated regions respond by ...
We analyze bargaining over international climate agreements in a setting with incomplete information about abatement costs. Incomplete information is known as one of the key reasons why negotiations may fail more generally, and why efficiency gains cannot be exploited. We ask whether unilateral commitment to high abatement reduces or increases the likelihood for an efficient negotiation outcome...
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