The momentum dependence of the antikaon optical potential in nuclear matter is obtained from a microscopic and self-consistent calculation using the meson-exchange J\"ulich \(\bar{K}N\) interaction. ...Two self-consistent schemes are discussed, which would lead to substantially different predictions for the width of \({\bar K}\) nuclear bound states. The effect of higher partial waves of the \(\bar{K}N\) interaction, beyond the L=0 component, is studied and found to have moderate but non-negligible effects on the \({\bar K}\) nuclear potential at zero momentum. At momenta as large as 500 MeV/c, relevant in the analysis of heavy-ion collisions, the higher partial partial waves modify the \({\bar K}\) optical potential by nearly a factor of two.
The mechanism of biologic response from exposure to a 12% subtilisin Carlsberg preparation is shown to be one of histamine release in the guinea pig. Three groups of guinea pigs were pretreated by ...intradermal injections withsaline solution of (1) the commercial proteolytic enzyme preparation containing 12% subtilisin Carlsberg, (2) an alkaline protease preparation obtain from Aspergillus oryzae that was isolated from cotton dust, or (3) a nonproteolytic mixture of proteins and lipases obtained from cotton seeds. The histamine content of the ling, liver, and ear tissues of guinea pigs that were pretreated with any one of the three preparations showed an in untreated animals. Following challenge by intratracheal injection of a saline solution containing the subtilisin preparation, the guinea pigs pretreated with the same preparation showed a markedly reduced liver histamine level. Challenge by inhalation exposure to the subtilisin preparation of guinea pigs that were pretreated with any one of the above preparations resulted in a lower histamine concentration in the lungs and livers.
Nucl.Phys. A691 (2001) 258-267 We present recent progress on the properties of antikaons in nuclei and dense
nuclear matter as obtained from two {\bar K}N interaction models: one based on
the ...lowest-order meson-baryon chiral lagrangian and the other derived from a
meson-exchange picture.
Alachlor (2-chloro-2′,6′-diethyl-N-methoxymethyl acetanilide), the active ingredient in several trade name herbicides, is absorbed through the skin and readily excreted in the urine as conjugated ...metabolites. This paper presents the results of a study to measure alachlor metabolites in the urine of commercial pesticide applicators who were applying alachlor to corn and soybean crops under normal work conditions. Three spot urine samples, collected at the beginning and end of the work shift and the morning after the exposure survey, were collected from 20 applicators, 7hauler-mixers, and 8 controls. Each sample was analyzed using both a competitive, solid-phase, enzyme-linked immunoassay (ELISA) and a high-performance liquid chromatography (HPLC) technique. Although the urine metabolite concentrations measured by ELISA were consistently higher than the respective HPLC measurements, a high correlation (r=0.90) was observed between the ELISA and HPLC measurements. The controls, with little exposure to alachlor, had metabolite levels below or near the lower limits of detection for each analysis technique. Similar urine metabolite concentrations were observed for the applicators and hauler-mixers, suggesting similar work exposures. The average postexposure urine concentrations were not correlated with the amount of alachlor handled and applied, suggesting that other factors, such as work practices, are greater determinants of absorbed doses of alachlor.
We present recent progress on the properties of antikaons in nuclei and dense nuclear matter as obtained from two {\bar K}N interaction models: one based on the lowest-order meson-baryon chiral ...lagrangian and the other derived from a meson-exchange picture.
