48,901 research outputs found
An Assessment of the Global Soybean Industry: An Application of Stochastic Equilibrium Displacement Model
This study uses stochastic equilibrium displacement model (SEDM) to investigate the impact on the soybean and its joint products (soymeal and soyoil) sectors of different countries and regions from transportation cost reduction in Brazil incorporating assumptions of decrease in the U.S. loan deficiency payment.International Trade, Loan Deficiency Payment, Soybean, Soybean Joint Products, Stochastic Equilibrium Displacement Model, Transportation Costs, International Relations/Trade,
Rotational Symmetry Breaking in Sodium Doped Cuprates
For reasonable parameters a hole bound to a Na^{+} acceptor in
Ca_{2-x}Na_{x}CuO_{2}Cl_{2} has a doubly degenerate ground state whose
components can be represented as states with even (odd) reflection symmetry
around the x(y) -axes. The conductance pattern for one state is anisotropic as
the tip of a tunneling microscope scans above the Cu-O-Cu bonds along the
x(y)-axes. This anisotropy is pronounced at lower voltages but is reduced at
higher voltages. Qualitative agreement with recent experiments leads us to
propose this effect as an explanation of the broken local rotational symmetry.Comment: 10 pages, 4 figure
Long-range interactions for He()--He and He()--He
The energetically lowest five states of a helium atom are: He(),
He(), He(), He(), and He(). Long-range interaction
coefficients , , , , and for all and
pairs of these states are calculated precisely using correlated wave functions
in Hylleraas coordinates. Finite nuclear isotope mass effects are included
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