5,627 research outputs found
Senior Thesis ST 2011-02
Agriculture in the Arctic is often limited by the low receipt
of heat energy, which is often measured in growing degree
days (GDD). With the advent of increasingly powerful climate
modeling, projection and downscaling techniques, it is becoming possible to examine future climates in high resolution.
Recent availability in Alaska has prompted interest in examining the distribution of current and the potential future of
local agriculture. The goal of this study was to utilize Scenarios
Network for Alaska Planning (SNAP) downscaled, ensemble
projections to examine this in terms of GDDs in the Fairbanks
North Star Borough of Alaska. Historic and projected monthly
mean temperatures were utilized to calculate GDDs and then
map the borough at a 4 km2 scale. Additionally, local agriculturalists were interviewed in order to put these theoretical calculations into context. Ultimately, projections of the examined agricultural locations showed an average of a 2% increase
in GDD per decade and a 26% increase in GDDs from 1949
to 2099. This project indicated that the North Star Borough
will receive increased heat energy due to climate change over
the next century that may further enable increased yields and
varieties of crops
MANSEE data analysis results
Results of the data reduction and analysis for the Marine Navigation Systems Evaluation Experiment (MANSEE) are presented. Topics discussed include: the MANSEE test; the navigation sensors which were exercised; the ground truth instrumentation and the processing of ground truth data; and the residual statistics for individual navigation sensors. Residuals were calculated by differencing the actual measurements with anticipated measurements computed from the ground truth trajectory. The results obtained by using the SEAMAP program to filter data from the navigation sensors are also presented. The resultant filtered trajectories were differenced with the corresponding ground truth trajectories to obtain navigation position and velocity errors
PRICE AND NON-PRICE INFLUENCES ON WATER CONSERVATION: AN ECONOMETRIC MODEL OF AGGREGATE DEMAND UNDER NONLINEAR BUDGET CONSTRAINT
We study the influence of prices and non-price conservation programs on water consumption and conservation behavior during a drought in the San Francisco Bay Area. The empirical results show that pricing can be effective in reducing water consumption. Use restrictions and landscaping audits are also effective in inducing conservation from consumers.Demand and Price Analysis, Environmental Economics and Policy,
Alien Registration- Hatch, Charles W. (Baldwin, Cumberland County)
https://digitalmaine.com/alien_docs/32985/thumbnail.jp
The development of a method of measuring, comparing, and evaluating baseball hitters' performances
Thesis (Ed.M.)--Boston Universit
PROCESSOR DEMAND AND PRICE-MARKUP FUNCTIONS FOR CATFISH: A DISAGGREGATED ANALYSIS WITH IMPLICATIONS FOR THE OFF-FLAVOR PROBLEM
Off-flavor in catfish restricts farm marketings 10 to 45% depending on the season. The economic impact on society of this imposed supply restriction depends, in part, on the elasticity of demand for catfish. Econometric estimates based on disaggregated processing plant data indicate an elastic demand at the processor level but an inelastic demand at the farm level. Short-run social welfare gains from the elimination of off-flavor are estimated to equal 12.0% of farm revenues ($10.0 million in 1983). The inelastic demand for catfish at the farm level, however, means that most of the societal gains will accrue to individuals beyond the farm gate. Thus, an economic justification exists for public sector funding of off-flavor research.Demand and Price Analysis,
Alterations in Intestinal Transport of Oxalate in Disease States
Normally, absorption of oxalate from dietary sources can occur in all segments of the intestinal tract. However, alterations in both the magnitude and direction of oxalate fluxes across the intestine can occur in disease states. In enteric hyperoxaluria, enhanced absorption of oxalate by the large intestine is caused by increased permeability of a shunt conductance induced by malabsorbed bile salts and fatty acids. In this condition, the contribution of a paracellular passive flux of oxalate moving along its electrochemical gradient will predominate when intraluminal concentrations of free oxalate are high. In contrast, in chronic renal failure, secretion of oxalate can occur across both small and large intestine thereby facilitating extrarenal elimination with subsequent degradation by mucosa) substrate-specific microorganisms. Clearly, in recent studies of oxalate transport, the intestine has emerged with an integral role in mass balance of oxalate in health and disease
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