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The influence of lead (II) cations and of biologically active substances from rhododendron and wormwood on the seeds of wheat Prilenskaya-19 as well as on the seeds of willow-herb collected from territories of natural and chemical-technogenous pollution by lead (II) compounds was studied in a laboratory experiment (physiological properties, activity of antioxidant systems, stability and differential activity of the genome, including those in reparation processes). For this, a comprehensive cytologic-biochemical method of estimating the activity of the genome of root meristem of shoots in translation, replication and reparation reactions was applied. The results obtained permit elucidating the mechanism of biochemical adaptation of wheat Prilenskaya-19 and of willow-herb to various Pb²⁺ concentrations and their influence on the survival of shoots. It is established that the increase in viability of shoots within the range of Pb²⁺ concentrations of 0.1-0.5 mM in the laborattory experiment and 5-10 mcM of ash in the subterranean organs of willow-herb (under natural conditions) is attained due to activation of antioxidant and/or DNA-repairing systems. It is demonstrated that a preliminary treatment of wheat seeds with willow-herb and rhododendron extracts exerts a protective action, activating additionally DNA-repairing and antioxidant systems. P. 127-136

Induction of alginate lyase, cellulase, chitinase and neuraminidase synthesis by the cultures of luminous bacteria from the IBSO Collection (Institute of Biophysics, Siberian Branch of Russian Academy of Sciences, Krasnoyarsk) has been investigated. For the first time neuraminidase production has been revealed in luminous bacteria of the species V.harveyi. The low level of neuraminidase (sialidase) synthesis is indicative of low pathogenicity of the cultures studied but does not rule out a possible contribution of neuraminidases to colonization by luminous bacteria of various organs in marine animals. It has been recorded that 25 % of the investigated cultures of V. harveyi from the IBSO Collection show alginate-lyase production, 85 % of the cultures synthesizing alginate lyases screened from the gastro-intestinal tract of marine animals and only 15 % isolated from sea water. Chitinase activity has been recorded for 28.5 % of the investigated P.leiognathi cultures and 18.2 % of the V. harveyi cultures. The level of chitinase activity shown by the cultures studied is in accordance with that shown by microorganisms under natural conditions, ranging between 0.02 and 2.4 units. The paper discusses the study of cellulolytic production of 65 IBSO Collection bacterial cultures of four species, belonging to different ecological groups is discussed in the paper. It has been shown that bacteria of the genera Vibrio and Photobacterium differ in  cellulase activity and in relative numbers of cultures with cellulase production. It has been revealed that free-living and associated luminous bacteria show enzymatic activities to a different degree. P.137-144

A sampling method intended for research of diversity of plant synusiae, communities and vegetation complexes, mapping of vegetation cover and reflecting different levels of vegetation pattern, choice of less labour-consuming methods is discussed. 2 types of gnoseological situation, 5 types of vegetation cover pattern and 4 types of field record form are distinguished.  Two components of the representativeness: typological and frequency have been noted. The regular gradient-method of plots arrangement is defined. P. 145-156

The leading factors of biogeochemical migration of Cu, Zn, In, Au, As and Ga in swamp ecosystems are local geomorphological and lithological properties of the territory, reduction-oxidation zonality of the peat deposits within both the oxidative and the reductant background, the quality of humus sorption barriers, biological absorption, and the carbonate equilibrium of swamp waters.  The enumerated factors influence differently the behavior of concrete elements.

Two stages are distinguished in the development of benthal invertebrate fauna of the deep-water Krasnoyarsk reservoir. The species structure of benthal biocenoses has been developed on gray silts, silty sands with plant remnants. The most unstable are cenoses of pebble and sand beds, in the highest degree in the upper reaches of the Krasnoyarsk reservoir. P. 165-172

Based on the mathematical model of a reacting two-phase medium in the two-velocity, two-emperature approximation, the process of planar shock wave entering a cloud of aluminum particles is numerically studied. The incident shock wave may have either a rectangular or a triangular profile, i.e., it may be accompanied by a rarefaction wave. An analysis of numerical data allowed us to determine conditions of possible establishment of a steady detonation regime in the cloud. Scenarios of initiation and types of detonation flows in the cloud are determined as functions of the amplitude of the incident shock wave and initiation energy. Criteria of detonation initiation for various fractions of particles are obtained, which express the dependence of the energy stored in the shock wave on its Mach number. P.101-108

The formation dynamics and structural features of the two-dimensional reaction zone of a detonation wave propagating in a two-layer bubbly medium is numerically studied within the framework of the Iordanskii-Kogarko one-velocity model. P.109-113

It is shown that chemical interaction between a carbon-containing shaped-charge flow and titanium target is possible. The upper layers of the targets tested are examined by x<!dash!>ray diffractometry. The dependence of the phase composition on the experimental conditions and composition of the initial porous liner is studied. P. 114-118

Plate acceleration by a gliding detonation wave is studied experimentally for detonation rates of <!ap!> 950<!ndash!>2000 m<!sol!>sec. It is found that regular elastic waves occur at the surface of the projectile plate made of a rather strong material, which disappear upon attainment of the upper limit of the detonation rate. P. 119-122

The paper studies properties of an ultrafine aluminum powder produced by electric explosions of conductors, whose particles are stabilized by coating with aluminum diboride immediately during the synthesis of the powder. The ultrafine aluminum powder stabilized in such a manner has special properties<!colon!> narrow particle size distribution, increased dispersity, and higher resistance to oxidation upon heating. P. 123-139