environmental impact assessment (eia) has led to the dominance of planners on the natural environment of the regions, providing the possibility of continuously monitoring and controlling the status quo by management staff. in this regard, a new semi-quantitative model is presented for the eia of the eastern alborz coal mining complex using the matrix method, and determining the corresponding im...

Background: The exposure of human being to ionize radiation from natural sources is a continuing, inescapable feature of life on earth. Direct measurement of absorbed dose rates in air has been carried out in many countries of the world during the last few decades. Such investigations can be useful for assessment of public dose rates, the performance of epidemiological studies, and kee...

Purpose: The current research aims to identify the antecedents and consequences of moral responsibility based on online training for teenagers. Methodology: This research is fundamental-applied in terms of its purpose; And in terms of the type of data, it is qualitative. The statistical population included the first group, academic experts: professors of Islamic Azad University and Farhangia...

In this talk, we consider a minimum degree condition for a hamiltonian graph to have a 2-factor with two components. Let G be a graph of order n ≥ 3. Dirac’s theorem says that if the minimum degree of G is at least n/2, then G has a hamiltonian cycle. Furthermore, Brandt et al. proved that if n ≥ 8, then G has a 2-factor with two components. Both theorems are sharp and there are infinitely many...

Mining can become more sustainable by developing and integrating economic, environmental, and social components. Among the mining industries, coal mining requires paying a serious attention to the aspects of sustainable development. Therefore, in this work, we investigate the impacting factors involved in the sustainable development of underground coal mining from the structural viewpoint. For ...

Our society's environmental and economic progress depends on the development of high-performance materials such as lightweight alloys, high-energy-density battery materials, recyclable motor vehicle and building components, and energy-efficient lighting. Meeting these needs requires us to understand the central role of crystal structure in a material's properties. Despite more than 50 years of ...

Background: Attention to environmental literacy and ethics in agriculture has a decisive role in nature conservation and production resources. If farmers do not have environmental literacy, irreparable damage to the environment is expected. The purpose of this study was to evaluate environmental literacy and its relationship with environmental ethics among farmers in Torbat-e-Heydariyeh. Metho...