In order to evaluate the enterprise social responsibility scientifically, this paper constructed an enterprise social responsibility evaluation indexes system composed by five first class indexes (environmental protection, resources utilization, economic benefit, human resources and social contribution and so on) and 18 second indexes. The two-step fuzzy evaluation method was adopted to evaluat...

Elevated nitrate concentrations in streamwater are a major environmental management problem. While land use exerts a large control on stream nitrate, hydrology often plays an equally important role. To date, predictions of low-flow nitrate in ungauged watersheds have been poor because of the difficulty in describing the uniqueness of watershed hydrology over large areas. Clearly, hydrologic res...

The result of ecological aspects being taken into consideration in human activities and aiming at an optimization of the chains of deliveries is an intention to close the loop of deliveries. One of the ways to achieve this aim is an application of the concept of ecologistics. While waste constitutes one of the main elements of ecologistics, it poses the most serious threat to the natural enviro...

Editor – I refer to the Round Table in the December 2004 issue of the Bulletin on achieving the Millennium Development Goals (MDGs) for health, with the main article by Jeffrey Sachs (1). The Secretariat of the Pacific Community has recently produced a 160-page document on the Pacific Islands Regional MDGs, with statistical indexes for the various goals. Few people know the extent of the work o...

abstract given the importance of environmental cycles had led to allocation of water-right for water species and ecosystems which is known as environmental flow or in stream flow. from among the various methods for estimating environmental flow, building block approach is considered as a very powerful tool for estimating the water needs. in this paper, beside simplifying the building block appr...

BACKGROUND Every year, West Africa is afflicted with Meningococcal Meningitis (MCM) disease outbreaks. Although the seasonal and spatial patterns of disease cases have been shown to be linked to climate, the mechanisms responsible for these patterns are still not well identified. RESULTS A statistical analysis of annual incidence of MCM and climatic variables has been performed to highlight t...

the radionuclides 226ra, 232th and 40k concentrations measured as well as radiological parameters, for 14 granite samples that use in iran as building material were calculated. the measurements of the radioactivity concentrations were carried out at nuclear physics laboratory university of tabriz. this subject is important in environmental radiological protection, since granites are extensively...