We sampled stream salamanders in southern West Virginia during 2001 in streams below head-of-hollow valley fills and in reference streams to determine if there were differing trends in relative abundance between these treatments. Head-of-hollow valley fill construction can cover headwaters, firstorder, second-order, and higher order reaches with excess spoil materials; valley fills in southern ...

introduction the fanuj titaniferous placer deposits are located 35 km northwest of the fanuj, sistan and baluchestan province (1) . the studied area comprises a (2) small part of the late cretaceous fanuj-maskutan (rameshk) ophiolite complex (arshadi and mahdavi, 1987). reconnaissance and comprehensive exploration programs in the fanuj district (east of the 1:100000 fanuj quadrangle map,yazdi, ...

the study was carried out in the purposively selected senapati and thoubal districts of hill and valley regions of manipur state of india. two blocks from each of the above selected districts were selected randomly and further from each block four villages were also selected randomly. 30 dairy farmers from each village were selected randomly and thus collected data from 240 respondents through ...

Quantum dots in silicon are promising candidates for the implementation of solid-state quantum information processing. It is important to understand the effects of the multiple conduction band valleys of silicon on the properties of these devices. Here we present a systematic effective mass theory of valley-orbit coupling in disordered silicon systems. This theory reveals valley-orbit hybridiza...

Imagine v valleys and all cities placed in this valleys. Cost of traveling from town to town in valley is very small (negligible), let us say equal to 1. When salesmen wants to go to other valley he has to pass mountain chain – this is of a huge cost, let us say equal to 1000. Salesman lives in one of towns in valley A. Optimal solution must then contain 4 mountain chains crossing (from A to B,...

This paper investigates the socio-ecological differences and interactions between upland and lowland areas in Shaxi Valley, Yunnan Province, Southwest China. As an analytical tool we used an extended Human–Environment System Framework by focusing particularly on the dynamics and sustainability of livelihood strategies and mountain–valley interactions. Drawing from household surveys conducted in...

We present results for the hot-electron noise in two-valley semiconductors, such as GaAs, where intervalley transfer plays an important role. The noise is calculated by a Boltzmann —Green-function method. We obtain an analytic solution for a model with two valleys and three relaxation times. Using the measured low-field mobility, lower-valley mass, and valley separation energy 6, while adjustin...

1 Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt 2 Molecular Hepatology Alcohol Associated Diseases, Department of Medicine II, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany 3 Department of Pathology, Faculty of Medicine, South Valley University, Qena, Egypt 4 Department of Physics, Faculty of Science,...

We study valley and spin dynamics in monolayer molybdenum diselenide by polarization-resolved femtosecond transient absorption spectroscopy. Valley- and spin-polarized excitons are injected by a circularly polarized laser pulse, with an excess energy of 120 meV. Relaxation of the valley polarization is time-resolved by measuring dynamical circular dichroism of a linearly polarized probe pulse t...