We have investigated the histopathological state of the liver tissue in two species of fish - carp and goldfish caught in rivers Araz (Araks) and Arpachay. The total catch included 26 fish: 14 from the Araz river (8 crucian carp and 6 goldfish) and 12 from the Arpachay river (6 fish of each species). Histological examination was carried out after staining the sections with haematoxylin and eosin. The state of the liver tissue of the fish caught in the Araz river was generally in line with the norm. At the same time, we have observed the following changes: studies of crucian carp show accumulation of starch in hepatocytes and congestion of blood in small blood vessels (stagnation), whereas the studies of goldfish indicate accumulation of starch as well as fibrosis of gallbladder channel (one case). In the fish caught from the Arpachay river we have observed the following: crucian carp are characterized by general stagnation in the small blood vessels (stagnation), the presence of single melanoma-macrophage centers and hemosiderin deposition, starch accumulation, necrosis of individual cells or groups of cells, whereas goldfish are characterized by pyknosis of nuclei and hydropic vacuolization, impaired trabecular organization, acentric location of the nucleus, stagnation, moderate hypertrophy of hepatocytes and starch accumulation.

We present the results of a research of the pathogenic mycobiota of herbaceous plants cultivated in Azerbaijan. It is shown that 37 plant species are infested by 105 species of fungi. Among the identified fungi are such species as Alternaria alternata, Ascochyta pisi, Botrytis cinerea, Fuzarium moniliforme, F. oxysporium, Penicillium cuclopium, Sclerotina libertiana, Septoria lucopersici, Vertisillium dahliae, etc., which are part of the dominant core of mycobiota of the investigated plants and cause of various diseases. The dynamics of some of them (fusarium, powdery mildew) is characterized by progression.

We report the data on the biomorhological structure of petrophit flora on the territory of the Russian Caucasus and analyze the biomorphological range of flora. The characteristics and ratio of vital forms, as well as additional biomorphological data are also presented. The distribution of biomorphological forms on vegetative high-rise belts is analyzed in absolute figures, in percentage and proportional relations. We draw a conclusion about absolute prevalence of hemicryptophytes in all vegetative belts, especially in subalpine, and about an increase in percentage of this biomorphological form with changing the gradient of height from lowlands to highlands.

We have investigated the choice of the method for more exact determination of the numerical structure of a microbial variety of oil-contaminated soils as well as of house dust and plant materials. It is shown that the preliminary processing of the taken samples by ultrasound for 30 minutes allows one to determine the numerical structure of the microbial variety more precisely. At the same time, this approach is more comprehensible at studying a microvariety of the oil-contaminated soils.

The eminent Russian scientist A.F. Lebedev (1882-1936) is a man of extraordinary and tragic fate, who made a great contribution in the development of both microbiology and soil science. In microbiology he discovered the bacterial chemosynthesis, based on the oxidation of H2, and the heterotrophic fixation of CO2. His fundamental contribution in soil science is linked with the famous theory of the origin of ground waters. His works on the engineering properties of subsoils and quicksands, written by the repressed scientist during the building of Belomorcanal, present a special interest.

The review presents some jubilee dates of famous, mainly Russian microbiologists. The main attention is focused on the scientists who played an important role in the development of the microbial ecology: V.L. Omeliansky and G.A. Nadson (145 years since the birth), V.S. Butkevitch (140 years since the birth), S.P. Kostychev, G.L. Seliber (135 years since the birth), N.G. Cholodny (130 years since the birth) and some others. The role of L. Pasteur (190 years since the birth) in the genesis of microbial ecology is also discussed.

We have studied under the laboratory (soil cultures) conditions the effect of different concentrations of sodium chloride and 6-BAP and ABA processing on the proline content in wheat leaves during the growing season. The introduction of sodium chloride has been experimentally shown to increase the level of proline. The proline content is considered as one of the factors of resistance of plants to adverse environmental conditions.

Linear objects of oil and gas industry in Stavropol are modern migration corridors through which new plant species penetrate into the region. The research performed showed essential prevalence of species with a short life cycle, which is explained, first of all, by the instability of living conditions of anthropogenous territories and represents a kind of adaptable strategy of plants at a level of a vital form. Thus, the share of the perennial grasses sharply decreases. The research can be a basis for monitoring of a vegetative component of ecosystems on objects of pipeline transport.

Based on the literature data and the study of nucleotide database of NCBI, the part of gene MIPS1, involved in the biosynthesis of phytic acid, was PCR amplified in plants belonging to the genus Glycine. The resulting amplicons (15 amplicons) were cloned and sequenced. Analysis of the sequences showed that they all belong to a gene MIPS1 in species Glycine max, G. soja and G. gracilis. Comparative analysis of obtained nucleotide sequences revealed a polymorphism of their primary structure. Furthermore, data about the nucleotide sequence of gene MIPS1 and its polymorphism in species G. soja and G. gracilis were obtained for the first time.

The paper presents the results of a spectral
study of the complexation reaction of 3,3 5,5- ,׳ tetramethyland
3,3 5,5- ,׳ 4,4 ,׳ hexamethyldipyrrolylmethens with platinum
(II) and palladium (II) in aqueous and non-aqueous solutions
(DMFA). We have observed active complexation of the studied
complexes with palladium (II) in non-aqueous solutions,
which manifests itself in changes in the electronic absorption
spectra. At the same time, we have failed to fix complexation
of platinum (II). The resulting complexes of palladium are not
active in the luminescence experiment.

We present the results of the research on use of
binding agents, superficially active substances and mechanical
methods of influence with reference to multicomponent
polydisperse materials. We consider mechanisms of dry
and damp granulation depending on the quantity of the introduced
binding agents. Three characteristic types of liquid
(binding agent) distribution are found, depending on a quantitative
ratio of liquid and solid phases. The table of technological
binding agents with reference to processed powders is
composed, and criteria characterizing efficiency of a granulation
process are presented.

We have studied the complex formation of germanium
(IV) with bis-(2,3,4-trigidroksifenlazo)-benzidine in
the presence of phenanthroline, 2,2-dipiridin, papaverine
and dibazol. We have found optimal conditions for the formation
of complexes. The study of the dependence of the
complex formation on the pH has shown that the yield of
the GeR complex is maximal at pH 4 (max = 458 nm), the
reagent has a maximum absorption at 353 nm. In the presence
of papaverine, dibazola, hexamine, phenanthroline and
,-dipyridyl, ternary compounds are formed: pHopt = 2, max
= 453 nm (GeR-Pap), max = 466 nm (GeR-Dib); max = 469 nm
(GeR-Ur) ; pHopt = 1; max = 461nm (GeR-phen); max = 477 nm
(GeR-,-dipy). We have determined the molar absorption
coefficients and stability constants of complexes germanium.
The region of Beers law obedience is found. The technique of
photometric determination of germanium in the drilling water
is developed.

We have proposed two methods for determining
rare-earth elements (REEs) in road dust by ionizing the
sample with inductively coupled plasma and then using mass
spectrometry (ICP-MS) to separate and quantify the ions. The
first method is based on dry ashing of samples in a muffle furnace
followed by processing of the remainder with a mixture
of hydrochloric and hydrofluoric acids. The second method
involves the decomposition under microwave heating with
the following sequential processing by fluoroboric and nitric
acids. Both techniques employ sorption separation of REEs
from the solutions on activated BAU carbon, modified by a
mandelic acid, and subsequent desorption of 3% nitric acid.
We present new data on the content of rare-earth elements in
standard samples of road dust, BCR-723, obtained with the
use of the developed techniques.

Thermal power plants (TPPs) are a major
source of environmental pollution. The construction and reconstruction
of TPPs should be accompanied by a detailed
geoecological investigation of the areas adjacent to the TPPs.
Engineering and environmental surveys produced in recent
years on a number of TPP areas make it possible to build up
a paradigm of such investigations. The paper summarizes the
experience of engineering and environmental surveying for
the construction and reconstruction of TPPs. The features of
the environmental impact of mobile peak gas-turbine power
plants operating in a peak load compensation regime in the
electrical networks are discussed.

The paper describes the results of meteorological and hydrological engineering surveys on the gold and silver Klyon deposit (Bilibinsky district of Chukotka Autonomous Okrug). The general purpose of the survey was to obtain basic data for the design of the deposit's production facilities. A brief description of the climatic conditions of the deposit territory and its hydrological regime are presented, and relevant quantitative characteristics are provided. The need is noted for the provision of the temporary points of meteorological and hydrological observations, whose program should be harmonized with that of the local environmental monitoring.

The spatiotemporal dynamics of the fluctuating asymmetry coefficient is studied. The reasons of its dynamics are explained. The influence of the climate's meteorological characteristics and chemical pollution of environmental components on the fluctuating asymmetry coefficient is estimated. A new method of estimation of the conditions of natural systems on the basis of the fluctuating asymmetry modified coefficient is developed and tested. The variant of an estimated scale of conditions of the environment, developed on the basis of the modified coefficient of fluctuating asymmetry, is presented. The improvement of this technique allows one to reduce time and labor costs.

A rigorous travelling wave solution in water channels of rectangular cross section with variable depth and width is obtained in the framework of shallow water theory. The differential equation connecting depth and width of the channel for the case of non-reflecting wave propagation is derived. It is shown that the number of geometries and configurations, which allow non-reflecting wave propagation, is unlimited. Thus, the effect of very long-distance wave propagation is rather common and can play an important role in the interpretation of the observed extreme inundations caused by tsunami.

As a part of engineering and environmental survey for the development of the Klyon gold-silver deposit (Bilibinsky district of Chukotka Autonomous Okrug), radiation contamination of its territory is investigated. It is established that the level of radioactivity of the ground and soil samples satisfies the radiation safety standards. The results of laboratory analysis of water samples from the Alice brook show that the specific total alpha and beta radioactivity is significantly lower than the corresponding limits. Field measurements of equivalent doses of external gamma radiation have shown that the gamma-background of the territory is within the allowable limit. The absence of the radon danger is shown by indirect features. The results of the study allow one to conclude that the level of the radiation contamination of the industrial site of the Klyon deposit is negligible.

The general concept of dynamic geoecology is discussed. The object of the research is the environment - an interacting set of natural and technogenic substances, bodies, conditions, factors directly and indirectly influencing people, animals and plants. Geoecological processes in the environment are considered as an object of research of dynamic geoecology. By geoecological processes are meant direct or indirect effects of changing components of the environment on health and activity of people, and also on vegetative and animal organisms. Dynamic geoecology is a new scientific direction of geoecology studying geoecological processes in the environment, influencing people and biosphere organisms.