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AIDS versus the Rotterdam demand system: A Cox test with parametric bootstrap
(Western Agricultural Economics Association, 2002-12)
A Cox test with parametric bootstrap is developed to select between the linearized version of the First-Difference Almost Ideal Demand System (FDAIDS) and the Rotterdam model. A Cox test with parametric bootstrap has been ...
Economic impacts of banning subtherapeutic use of antibiotics in swine production
(Cambridge University Press, 2002-12)
Public health officials and physicians are concerned about possible development of bacterial resistance and potential effects on human health that may be related to the use of antimicrobial agents in livestock feed. The ...
Physiological genetics of aluminum tolerance in the wheat cultivar Atlas 66
(Crop Science Society of America, 2002-09)
Aluminum toxicity limits wheat (Triticum aestivum L.) production on acidic soils. The wheat cultivar Atlas 66 reportedly may have both more than one Al tolerance gene and more than one Al tolerance mechanism. The purpose ...
Electrical and optical characterization of conducting poly-3-methylthiophene film by THz time-domain spectroscopy
(AIP Publishing, 2002-12-17)
Using THz time-domain spectroscopy (THz-TDS), we have measured the absorption and dispersion of 7.5/(Ohm-cm) conducting poly-3-methylthiophene film from low frequencies up to 4 THz. From these measurements the complex ...
Sodium silver tricobalt bis(diphosphate) and sodium silver copper(II) diphosphate
(International Union of Crystallography, 2002-06-12)
The crystal structures of two new diphosphates, sodium silver tricobalt bis(diphosphate), (Na1.42Ag0.58)Co3(P2O7)2, and sodium silver copper(II) diphosphate, (Na1.12Ag0.88)CuP2O7, provide examples of the effect of mixing ...
Value of increasing kernel uniformity
(Western Agricultural Economics Association, 2002-12)
Kernel uniformity is an important quality attribute that can now be measured at low cost. This study analyzes the profitability of sorting to increase wheat kernel uniformity. Nonlinear programming is used to sort grain ...
Genetic trends in winter wheat yield and test weight under dual-purpose and grain-only management systems
(Crop Science Society of America, 2002-05)
Wheat (Triticum aestivum L.) cultivars of the southern Great Plains are traditionally bred in environments managed for grain production only but are commonly grown for the dual-purpose of producing winter forage and grain ...
Market inversion in commodity futures prices
(Cambridge University Press, 2002-12)
In an inverted market, current prices are higher than future prices and thus the price of storage is negative. Market inversions as measured with futures spreads rarely occur during early months of the crop year. However, ...