in the portfolio selection problem, the manager considers several objectives simultaneously such as the rate of return, the liquidity and the risk of portfolios. these objectives are conflicting and incommensurable. moreover, the objectives can be imprecise. generally, the portfolio manager seeks the best combination of the stocks that meets his investment objectives. the imprecise goal program...

background: dental waste can be hazardous to humans and the environment. objective: to determine the current status of dental waste management in private and public dental clinics and private dental offices in shiraz, southern iran. methods: this cross-sectional study was conducted at the shiraz university of medical sciences from february through june 2013. a stratified random sampling method ...

Garbage is one of the complex problems faced by both developing and developed countries in world. Waste processing continues to be Indonesia reduce risk environmental pollution, which existence a waste bank attract increase public awareness. One banks Pati Regency Bolo Larah Bank. Based on results surveys observations, there are several bank, including limited administration savings management ...