for social and cultural condition of country using weakest and returned water in different uses especially in agricultural consumption is not public and also is faced social opposition. in this study, it is tried to investigate several products in different levels of consumption according to consumer’s views who reside in tehran by mean of willingness to use concept. data are collected in 2012 ...

Urban rivers are polluted with discharge from sewage treatment plants and overflowing sewage caused by rainfall (Nix and Merry, 1990; Shiraris et al., 1987). These waste waters accelerate eutrophication of aquatic environments. Since urban river water is the public water supply source, it is an i~0ortant for public health issue to determine whether or not urban rivers are polluted with fecal ef...

very favourably some time ago. The present volume is intended for the public health student and will be found very useful by medical officers at home on leave, who are working for that most useful diploma, the D. P. H. The first 126 pages of this book is taken up with the chemical, microscopical and physical examination of water for public health purposes. Part II treats of the analysis of sewa...

In 2003, the world celebrated the fiftieth anniversary of the elucidation of the structure of DNA and, thus, the birth of molecular biology. As this period is now a part of human history, original documents from the founders of molecular biology are becoming increasingly important to scholars, and are being harshly fought over by public libraries and private collectors. Private correspondence, ...

This paper considers policies for promoting productive investments in the USA, especially as regards the project of building a clean energy economy. The four main policies examined are (i) expanding public investments throughout the economy and gaining the crowding-in benefits that will accrue from such investments, (ii) refocusing the successful but ad hoc, US model of industrial policies, (ii...