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Mehri Kaviani Moghadam Saied Mohammad Firoozabadi Mahyar Janahmadi 《The Environmentalist》2008,28(4):341-347
In spite of growing concern about the influence of magnetic fields on biological systems, the interaction between extremely
low frequency magnetic field (ELF magnetic fields) and biological structures at the cellular level remains obscure. The aim
of this study was to investigate if 50 Hz magnetic fields could have an effect on the neuronal excitability and firing responses.
Under Current-Clamp condition, exposure to 50 Hz ELF magnetic fields at 2 mT or 0.8 mT intensities resulted in an increase
in the peak amplitude of action potential and after hyperpolaization potential in a time dependent manner. Both magnetic field
intensities decreased also the firing frequency and the duration of action potential. Taken together, these data suggest that
50 Hz ELF magnetic fields at 2 mT or 0.8 mT intensities may change the electrophysiological behavior of neuronal cells and
underlying ion channel currents. 相似文献
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Nakhaei Nader Boegman Leon Mehdizadeh Mahyar Loewen Mark 《Environmental Fluid Mechanics》2019,19(2):305-327
Environmental Fluid Mechanics - Computational models often are applied to simulate water quality for management of natural and constructed aquatic systems. As part of a larger study, a... 相似文献
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Azizi Jalilian Farid Poormohammadi Ali Teimoori Ali Ansari Nastaran Tarin Zahra Ghorbani Shahna Farshid Azarian Ghasem Leili Mostafa Samarghandi Mohammadreza Motaghed Mahyar Nili Ahmadabadi Amir Hassanvand Mohammad Sadegh 《Food and environmental virology》2022,14(2):190-198
Food and Environmental Virology - Side by side air sampling was conducted using a PTFE filter membrane as dry sampler and an impinger containing a suitable culture medium as a wet sampler. Most of... 相似文献
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In this paper we present a new approach for modeling environmental problem as a bilevel programming problem. To the authors best knowledge, this is the first attempt to use bilivel techniques to tackle such problems. We derive at solution to help decision makers to cope with environmental policy issues. San Francisco, Bay Area is used as a real world example with the solution to their environmental problem.California is presently faced with a serious deficit of solid waste treatment and disposal facilities. Federal legislation has sought to compel the States to assure the capacity to treat and dispose of their own wastes and the California Legislature has enacted laws requiring the counties to initiate programs so that they can treat and dispose of their own wastes. Neither the federal nor the State programs have met with success in California. California continues to ship greater and greater amounts of waste out-of-state, and the majority of California counties have not instituted plans acceptable to the State government regarding the treatment and disposal of their own wastes.In the few cases where sitting and licensing programs have been proposed, the policy-makers charged with their evaluation have proceeded with largely intuitive, non-quantitative evaluation of policy options, often ignoring most of the financial and environmental implication of their decisions.We have developed a strategic management decision model that can evaluate multiple solid waste management options from both economic and environmental standpoints. Examples of problems a quantitative model might evaluate include the economic and environmental impacts of multiple treatment or disposal facilities as opposed to only one site; the environmental impact of taxing dirty waste streams, thus encouraging waste treatment and/or minimization on-site; and the social risk resulting from transportation risks assuming one or more multiple treatment or disposal sites or the use of alternative transportation routes.Because of extensive information presently available for the San Francisco Bay region, we have investigated the regional waste management problem there under several different treatment and disposal scenarios. As appropriate, results from this regional model and from authors earlier work [1] will be applied to California as a whole. 相似文献
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Fazeli Mahyar Fazeli Faegheh Nuge Tamrin Abdoli Omid Moghaddam Shokooh 《Journal of Polymers and the Environment》2022,30(2):644-652
Journal of Polymers and the Environment - The principal intention of this work is to fabricate and characterize the polyamide/chitosan nanocomposite by a novel single solvent method through the... 相似文献
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Alamroshan Fatemeh La’li Mahyar Yahyaei Mohsen 《Environmental science and pollution research international》2022,29(5):6793-6811
Environmental Science and Pollution Research - The supplier selection problem (SSP) is known as one of the major issues in the supply chain management area. In this field, the literature shows that... 相似文献
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