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In this paper, the results of experimental studies of peculiarities of Escherichia coli water suspension inactivation by ultraviolet radiation of hollow cathode discharge plasma in different gaseous media are presented. It is shown that efficiency of the inactivation by the discharges on oxygen, mixtures of oxygen with deuterium, and water vapor is essentially higher than that by the discharge on air, as well as the discharges of low- and medium-pressure mercury lamps. Index Terms--Gas discharges, plasma, ultraviolet (UV) radiation, water decontamination.

This investigation studies the theoretical and practical features of sterilization using glow discharge plasma in hydrogen-peroxide vapor. It is determined that in such a system, most sterilization is performed by the active species formed in the plasma rather than by ultraviolet radiation (as is the case in air or oxygen discharges). This study shows that sterilization by discharge plasma in hydrogen-peroxide vapor is more efficient than sterilization by other gas discharges: sterilization time is two to three times shorter in open surfaces and ten times shorter in packed articles. This study's calculations indicate that this enhanced efficiency might be due to fact that concentrations of the main biologically active particles, such as atomic oxygen and oxygen molecules excited to lower metastable states, reach values of ~[10.sup.14]-[10.sup.15] [cm.sup.-3], which is two to three orders of magnitude higher than that in oxygen plasma at the same parameters of the discharge. Index Terms--Discharge, hydrogen peroxide, plasma, sterilization.

Byline: V. M. Bazhenov (1) Abstract: The nature of the coupled field is investigated for certain cases of longitudinal waves propagating in thin, infinitely long, piezoceramic rods, whose axes are parallel to the poling axis (z axis). Author Affiliation: (1) Crimean State Agricultural University, Ukraine Article History: Registration Date: 17/10/2004

Byline: V. M. Bazhenov (1), I. A. Ulitko (2) Abstract: The specific electrical energy recorded in multiple discharges of uniaxially deformed shock-excited piezoelectric elements is determined on the basis of the exact solution of the coupled dynamic electroelasticity equations. The dynamics of the wave process is investigated. Author Affiliation: (1) Crimean State Agricultural University, Ukraine (2) T. G. Shevchenko State University, Kiev Article History: Registration Date: 17/10/2004

Russian First Deputy Prime Minister Anatoly Chubais hopes the budget will be passed through the Duma despite the scandal involving him and other Russian officials over publishing payments for a book on privatization. Chubais claims to have focused heavily on the budget after agreeing a compromise with the Communists, and he believes the country's economy depends on the budget figures.