2013 Issue №7

This article focuses on the numerical concentration of certain groups of microorganisms in the brown forest soils of natural and urbanised ecosystems of the Kaliningrad Peninsula. An analysis of the microflora was performed in spring, summer, and autumn 2012. This paper presents the average annual data for each key area. It is shown that human-altered ecosystems are characterized by a higher than natural concentration of ammonifying microorganisms and actinomycetes. The numerical concentration of micromycetes in agrophitocenosis and beech-sorrel spruce forests is lower than in the soils of urban ecosystems.

This article presents an evaluation of the antioxidant status of plants with the use of the GDV-method under the toxic effect of cadmium. A high concentration of Сd in the soil is proven to stimulate the accumulation of anthocyans, carotenoids, and acorbic acid and to contribute to a reduction in the concentration of water-soluble antioxidants in the leaves of the plants under consideration. It is shown that GDV-entropy can be used as a principal characteristic of the state of a vegetative organism when estimating the antioxidant status of plants and the degree of their adaptation to the toxic effect of cadmium ions.

This paper addresses the problem of solid waste disposal and considers the impact of disposal sites on the urban environment. The author examines the role of microorganisms in the process of soil self-purification and provides data on the condition of the soil microflora in Kaliningrad according to the level of pollution, as well as the ways to study the soil microflora in the vicinity of the disposal site in the suburb of Alexander Kosmodemyanski in Kaliningrad.

This article focuses on a pool of water-soluble antioxidants in certain plants of the true grasses (Gramíneae) and legume (Fabaceae) families in the Kaliningrad region in connection with the environmental conditions of their habitat, namely, the varying distance to the Sea coast. It is shown that the level of water-soluble antioxidants was higher in the vegetative parts in the true grasses and the generative parts in the legumes with the exception of the Big-leaved Lupine (Lupinus polyphyllus (L)). The concentration of watersoluble antioxidants varied more widely in the Fabaceae than in the Gramíneae, whose antioxidant pool was more stable and less dependent on the growth conditions in terms of the distance to the Baltic Sea coast.

This paper focuses on the trends of a comparative analysis of statistical parameters of physical development of rural and urban school children in the Nizhniy Novgorod region. The results indicate that, against the background of the persistence of basic characteristics of growth processes in children and adolescents of the Nizhniy Novgorod region, both favourable (total body parameters of rural girls are close to those of urban ones, the high value of VC in rural children, increased carpal dynamometry values) and unfavourable (development disharmonisation, in particular, through an increase in the number of overweight children, susceptibility to hypertension and tachycardia in the city) changes in the physical development of modern school children are taking place.

This study reveals the nature of variations in the information status of liver tissue in dogs of reproductive age suffering fr om hepatic adenoma, liver cancer, and non-cancer diseases. It is shown that, in case of non-cancer pathological conditions, the liver tissue system mobilizes the existing structural adaptation resources while tending towards destruction. A decrease in the system reliability make it possible to perform a successful correction of the biosystem, i. e. treatment. In case of tumours, the liver tissue system becomes simplified, structured, and subject to growth, wh ereas the change in the reliability of such system decreases the possibility of successful treatment of the organ in case of such pathologies.