Quantitative corrections to mass sum rules involving baryons containing heavy quarks

Quantitative corrections are estimated to three of Franklin's sum rules involving the masses of baryons containing at least one charmed quark and to three analogous sum rules for baryons containing at least one bottom quark. The corrections arise from three-body contributions to baryon interaction energies and are calculated from a semiempirical formula for the colormagnetic contributions to baryon masses.Comment: 4 pages, plainte

A new accelerometer recording system for shuttle use

Microgravity investigators are interested in enhancing the capabilities and improving the information return from accelerometers used in microgravity research. In addition to improving the accelerometer sensor, efforts should be directed towards using recent advances in microprocessor technology and system design techniques to improve sensor calibration and temperature compensation, online data display and analysis, and data reduction and information storage. Results from the above areas of investigation should be combined in an integrated design for a spaceflight microgravity accelerometer package

Are Green Payments Good for the Environment?

There is growing interest in green payments subsidizing conservation measures on working farmland based on the premise that they have positive effects on the environment and agriculture simultaneously without causing international trade distortions. This paper uses a Ricardian land market equilibrium model to examine the impacts of green payments. The analysis shows green payments can worsen ambient pollution damage by subsidizing the expansion of more intensive crop cultivation. Some forms of green can increase cultivation intensity (and thus environmental damage) as well. These adverse effects can be avoided by careful targeting, but such targeting is likely to be quite difficult.Environmental Economics and Policy,

Benefits and Costs of Newer Drugs: An Update

We update and extend our previous study of the effect of drug age -- years since FDA approval -- on total medical expenditure, in several respects. The estimates indicate that, in the entire population, a reduction in the age of drugs utilized reduces non-drug expenditure 7.2 times as much as it increases drug expenditure. In the Medicare population, a reduction in the age of drugs utilized reduces non-drug expenditure by all payers 8.3 times as much as it increases drug expenditure; it reduces Medicare non-drug expenditure 6.0 times as much as it increases drug expenditure. About two-thirds of the non-drug Medicare cost reduction is due to reduced hospital costs. The remaining third is approximately evenly divided between reduced Medicare home health care cost and reduced Medicare office-visit cost. We also found that the mean age of drugs used by Medicare enrollees with private Rx insurance is about 9% lower than the mean age of drugs used by Medicare enrollees without either private or public Rx insurance.

GRADING STANDARDS AND PESTICIDES

Pesticide use, grading standards, cosmetic standards, fruits and vegetables, Crop Production/Industries,