12,512 research outputs found
Absence of Chaos in Bohmian Dynamics
The Bohm motion for a particle moving on the line in a quantum state that is
a superposition of n+1 energy eigenstates is quasiperiodic with n frequencies.Comment: 1 pag
MARKET STRUCTURE IN BIOTECHNOLOGY: IMPLICATIONS FOR LONG-RUN COMPARATIVE ADVANTAGE
A country specializing in a high technology industry may find that excess returns stemming from innovation are reallocated overseas as foreign-based multinationals access ongoing domestic R&D through alliances with or acquisition of established domestic start-ups. Computer simulation illustrates this process in the context of the current US specialization in biotechnology. Keywords: Biotechnology, market structure, comparative advantageBiotechnology, market structure, comparative advantage, Research and Development/Tech Change/Emerging Technologies,
THE SOURCE OF COMPARATIVE ADVANTAGE IN THE BIOTECHNOLOGY INDUSTRY: A REAL OPTIONS APPROACH
Sources of heterogeneity within the process of R&D investment, such as international differences in the maximum per-period rate of investment and level of regulatory uncertainty, offer a plausible explanation for US comparative advantage in biotechnology. Using dynamic stochastic simulation, the results presented in this paper suggest US biotechnology firms may initiate more R&D projects, innovate earlier and more rapidly, persevere longer in the face of mounting R&D costs, and successfully complete more R&D projects than European firms.Comparative advantage, biotechnology, real options, Industrial Organization, Research and Development/Tech Change/Emerging Technologies,
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Utilizing Highway Rest Areas for Electric Vehicle Charging: Economics and Impacts on Renewable Energy Penetration in California
California policy is incentivizing rapid adoption of zero emission electric vehicles for light-duty and freight applications. This project explored how locating charging facilities at California’s highway rest stops might impact electricity demand, grid operation, and integration of renewables like solar and wind into California’s energy mix. Assuming a growing population of electric vehicles to meet state goals, state-wide growth of electricity demand was estimated, and the most attractive rest stop locations for siting chargers identified. Using a California-specific electricity dispatch model developed at UC Davis, the project estimated how charging vehicles at these stations would impact renewable energy curtailment in California. It estimated the impacts of charging infrastructures on California’s electricity system and how they can be utilized to decrease the duck curve effect resulting from a large amount of solar energy penetration by 2050.View the NCST Project Webpag
A survey of the techniques of football line play in selected colleges
It was the purpose of this study (1) to determine the importance of techniques of line play in college football; and (2) to note by comparative analysis the viewpoints of leading authorities now in the coaching profession, and those of noted football authors
Ecology and management of raccoons within an intensively managed forest in the central Appalachians
The raccoon (Procyon lotor), a generalist meso-predator, is commonly found throughout the eastern United States. Many researchers have examined the ecology and spatial requirements of raccoons in agricultural and wetland areas of the mid-western and southeastern United States. However, no studies have quantitatively examined raccoon habits in the forested central Appalachians and their response to forest management. During the fall of 2000 through the spring of 2003, I monitored the spatial movements and den site selection of raccoons within an intensively managed forest.;I investigated the occurrence of raccoon roundworm (Baylisascaris procyonis) in raccoons (Procyon lotor) within my study area. I found no evidence of B. procyonis infection in 25 raccoons sampled by fecal floatation and necropsy methodologies. On the basis of my 25 negative cases at a 95% confidence level the estimated non-detectable maximum constant prevalence rate is 8%. Baylisascaris procyonis has been implicated in population declines of the Allegheny woodrat (Neotoma magister) in the northeastern United States. The low prevalence of B. procyonis in an area inhabited by what is believed to be a stable population of Allegheny woodrats supports conservation measures to monitor anthropogenic activities that may increase the prevalence of B. procyonis or raccoon interaction with Allegheny woodrats.;During my study, I found 13% of all active raccoon locations to be below 800 m elevation and 55% and 92% of the active locations below 900 m and 1000 m respectively. According to the stream buffer analysis, I found 63% of all active locations to be within 200 m of a steam and 82%, 92%, and 98% of all active locations to be within 300 m, 400 m, and 500 m respectively. Restructuring the rabies vaccination bait-drop area on my study site to include an elevational ceiling of 1000 m and focusing the drop zone to within 400 m on either stream bank to target 92% of the nocturnal activity, would effectively reduce the bait-drop area by 36%, while maintaining \u3e70% contact with all animals. Applying these same parameters of 1000 m elevation and within 400 m of a stream would reduce the bait drop area at the county (Randolph) level by 22%. (Abstract shortened by UMI.)
A high pass, mechanical velocity filter for fast neutral molecular beams
Design and transmission characteristics of high pass, mechanical velocity filter for fast neutral molecular or atomic beam
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