During the past decades, the traditional state monopoly in urban water management has been debated heavily, resulting in different forms and degrees of private sector involvement across the globe. Since the 1990s, China has also started experiments with new modes of urban water service management and governance in which the private sector is involved. It is premature to conclude whether the var...

Recent advances in nuclear transfer technology for derivation of patient-specific stem cells have opened up new avenues of therapy for various human diseases. However, a major bottleneck is the severe shortage of human donor oocytes. Egg-sharing in return for subsidized fertility treatment has been suggested as an ethically justifiable and practical solution to ease the shortage of donor oocyte...

since last few decades, the rapid industrialization has led to the development of many new chemicals, namely of which different kind of pesticides are of the most important ones. it is now evident that almost every food, agricultural product, water, soil and human body etc. is contaminated with some sort of chemical or pesticide. in some highly industrialized countries, new ailments have been r...

Having adequate numbers of qualified human resources for health is essential for any effective health care system. However, there is a global shortage of skilled health care workers, especially in Sub-Saharan African countries. This shortage is exacerbated by a disproportionately high rate of infectious diseases, the burden of emerging chronic, noncommunicable diseases, and the emigration of me...

Water scarcity, its necessity in food production, and environmental protection in the world have forced human beings to seek new water sources. Nowadays, application of unconventional water resources (wastewater) has been proposed in countries facing the crisis of water resources shortage; however, a few studies have dealt with this issue. The present study has evaluated the changes in the elem...

Water scarcity, its necessity in food production, and environmental protection in the world have forced human beings to seek new water sources. Nowadays, application of unconventional water resources (wastewater) has been proposed in countries facing the crisis of water resources shortage; however, a few studies have dealt with this issue. The present study has evaluated the changes in the elem...

Human activities in the recent years have considerably increased the rate of water pollution in many regions of the world. In this case study, the main sources of wastewater discharging into the Gargar River were identified. Using river and point source flow rates and water quality parameters measured along the river, the river water quality was simulated using a commonly used, one-dimensional ...

Rice is the major source of food for half of the world’s population. Paddy production entails use of costly resources a quarter to one third of world’s annual fresh water supply, fossil fuels and synthetic fertilizers leading to high ecological foot prints. Paddy fields also emit greenhouse gases to global warming, soil and water pollution. The system of Rice Intensification (SRI) is an answer ...

today, saving and storing water are among the most critical and important issues which have attracted the world's attention. history of storing water in the form of ghanat and water reservoir by iranians goes back to ancient times. studies on this field show that benefiting from underground dams was one of the methods employed for exploiting water in past times. in countries like iran, due...