it can be argued that fuel and energy sector plays a crucial part in the countries' development and improvement of people's living standards, constituting a pillar of economic development for nations. electricity is considered as an infrastructure for economic, social and cultural development in a way that the growth in electric power is evaluated as an indicator for measuring the gro...

the sorkh shale formation (lower triassic) crops out in parts of tabas block. this formation is composed of limestone, dolomite, sandstone, shale and gypsum. its lower contact with the permian rocks and its upper contact with the shotori formation is marked by distinct erosional unconformity. to determine the depositional environments of the sorkh shale formation, stratigraphic sections of goda...

the financial losses, absolute and net economic values (evs) for direct (dcd) and maternal calving difficulty (mcd) were estimated using a bioeconomic model and taking into account the categorical nature of the trait. the effects of dystocia on other traits were estimated. but because of low reliability they were not considered for calculations in the base situation. in the base situation, the ...

Most of the poor people in developing countries live in rural areas. Experience shows that in manycountries animal husbandry development and increasing investment specially is a way to challengethe poverty in rural areas. This is obvious that, small producers have key role in dairy markets anddairy development but they have no power to bargain and negotiate for higher prices, access to themarke...

conclusions findings of this study showed the importance of psychological hardiness in maintaining mental health. special attention should be paid to maintaining and improving the mental health of workers in the pars special economic energy zone. one of the main principles involved in the sustainable and integrated development of a company is healthy human resources in all aspects, including ph...

In this study, we explore the potential contributions of a risk perception framework in understanding public perceptions of unstable ecosystems. In doing so, we characterize one type of common ecological risk- harmful algal blooms (HABs)-in four of the most seriously eutrophicated freshwater lakes in China. These lakes include Chaohu, Dianchi, Hongze, and Taihu, where a total of 2000 residents ...

purpose: given that the tourism development has many effects on economic, social, cultural, tourist and environmental aspects of tourist areas, the purpose of this research is to answer the main question: what is the effect of tourism development in do-hezar dehestan on sustainable development of tourism? methodology: the research is descriptive and analytical. the research statistical populati...