Background: We intend to study the inhibitory effect of sulfur compound in Ramsar hot spring mineral on tumor-genesis ability of high natural background radiation. Objective: The radioprotective effect of sulfur compounds was previously shown on radiation-induced chromosomal aberration, micronuclei in mouse bone marrow cells and human peripheral lymphocyte. Ramsar is known for having the highe...

aims: chromium is one of the most important metallic pollutants in plating industry wastewater. this toxic metal is a serious threat to human health and to the environment due to its cumulative effects and non-degradability. this research intended to study the effects of ph, contact time, and voltage on the degree of chromium removal from wastewater of plating industry by using the electrocoagu...

The history of the mining industry is intimately connected with government regulation. As in many other countries, this reflects the fact that the Crown has reserved almost all mineral rights to itself. In many cases regulation has had adverse consequences for the sector. A notorious example was the ban on exports of iron ore in the 1960s, which depressed exploration activity and postponed the ...

in order to assess the presence or absence of fluids under peak metamorphic conditions within the inner aureole of the etive igneous complex in west scotland, eight suitable metabasic hornfels samples and one suitable pelitic hornfels were used to calculate water activities using a mineral equilibria. calculated activities for water are lower than unity in the pelitic sample and extremely low i...

The need for organizational learning support is common among all software development companies but is not addressed by agile software methods practitioners. The typical Experience Factory approach to address organizational learning in software companies often stresses structured and explicit knowledge as well as controlled learning mechanisms. In contrast, the Communities of Practice approach ...

The inevitable depletion of mineral resources, the constant deterioration of the geological and mining conditions for the development of mineral deposits and the restoration of raw materials from mining waste by recycling are all urgent problems we face today. The solution to this problem may ensure: a considerable extension of raw material source; decrease of investments in opening new deposit...

In this paper we review the progress in software process research and the role of process improvement in enhancing business outcomes of software projects. We ®rst describe the process view of software development. Next, we review the literature on software process research and discuss some of the leading software process models. The business value of software process improvements and empirical ...

Offshoring has become a viable alternative for companies to lower software development costs and leverage labor resources worldwide. To achieve success in offshoring software development projects, a vendor must choose appropriate development methodologies. This study aims to examine how methodology fit affects offshoring project performance. It proposes that methodology fit affects project perf...

Urbanization is an inevitable trend in historical development, but eco-environmental problems, including drinking water safety, have gradually become more and more outstanding during the process of rural urbanization. Ten districts in rural areas of Beijing, China were selected to study the effects of urbanization on drinking water quality. The relation between the urbanization index and drinki...

The trend in the industry T H E MINERAL-PROCESSING INDUSTRY is , and will remain, very sensitive to the metal market, which in turn is very dependent on the use of metals for the improvement of lifestyle in developing and developed countries. An assumption is made that the weapons industry will have a reduced effect in the future on the use of metals, and therefore on prices. The cost of metal ...