Laboratory methods and questionnaires to assess the relative reinforcing value of food (RRV-F) have been developed, but this is the first study to validate an online questionnaire measure of the RRV-F. Participants (281 college students) completed an online survey assessing demographic variables, food preferences, and the RRV-F. A subsample (n=21) also completed a laboratory food choice session...

Ivan Havel remembers when in the late 1970s the Czechoslovakian state police began watching his apartment. For months he had been hosting unofficial science seminars, and the police didn't like it. "It politicized me, says the soft-spoken computer scientist and brother of Czechoslovakian president Vaclav Havel. "The police would check the people who came and ask them to identify 'themselves. Th...

Water quantity and quality joint operation is a new mode in the present dams' operation research. It has become a hot topic in governmental efforts toward integrated basin improvement. This paper coupled a water quantity and quality joint operation model (QCmode) and genetic algorithm with Soil and Water Assessment Tool (SWAT). Together, these tools were used to explore a reasonable operation o...

The Seymareh landslide is the largest rock slope failure (44 Gm3) ever recorded on exposed Earth surface. It detached at ∼10 ka from northeastern flank of Kabir-Kuh anticline (Zagros Mountains, Iran) creating a natural dam responsible for formation lake system that persisted ∼3 kyr during early and mid-Holocene before its emptying phase caused by overflow. chronology demise connection to Holoce...

riparian vegetation is a component of river system that performs certain basic functions including primary vegetative production, protecting stream banks from erosion, trapping sediments, promoting water quality, wildlife habitat and fisheris, forage for livestock, etc. in this research, spatio-temporal change of vegetation riparian area of aghbolagh-river as an upstream of karoon-river for 65-...

The giant prehistoric Seymareh landslide in the Zagros Mountains (Iran) is one of largest known landslides on Earth’s surface. debris with an estimated volume 44 km 3 dammed two rivers, generating three lakes, that persisted for about ka after event. post-overflow morphodynamics, characterized by accelerated and intense stream network erosion, obliterated most primary landforms, such as ridges ...