[en] In territory of Republic of Belarus the rare kind of a moth - She-bear Geba - Eucharia festiva (Hufnagel, 1766) is found out. Acknowledgement of existence of a steady population demands the further researches. (authors)

[en] A lot of radioactive isotopes were released by the Chernobyl accident in environment. Big territory still is contaminated by long-term half-life radionuclides such as ¹³⁷Cs, ⁹⁰Sr, several transuranium isotopes that will affect biota for many years. The chronic irradiation total dose includes external and internal doses. Evaluation, determination and calculation of the third part of dose (radioactive fallout) is very difficult because it depends on plenty of hard defines the environmental parameters. To implement this investigation two wild plants and several cultural plants of some generation were harvested from fields with high-level radioactive contamination (Yaniv, Chistogalovka) and control plots (Chernobyl).Epigenetic changes of genome function closely depend on the net signal system pathways. Proteomic research will provide information about changes in protein abundances that may be used for technical purposes. Low-level concentration of radionuclide accumulation in seeds and oil enables us to use agricultural plants for sustainable remediation of the Chernobyl alienation areas.

[en] Analytical solutions are given to the transport-diffusion equation for archetype, atmospheric protracted releases featuring fronts of initiation, culminations, and tails of extinction. The interplay of the fitting parameters ensures that the model accommodates a wide typology of events, nearing in the extremes the instantaneous puff of the Lagrangian models, and the continuous stack emission of the Gaussian models, respectively. (author)

[en] Full text: Kazakhstan territory is unique including regions with radioactive pollution of Semipalatinsk nuclear test territory and storage of radioactive waste of uranium mines and metallurgy enterprises, and regions of drying Aral sea. These technogenic factors may cause some types of chromosome aberrations and developmental anomalies in mammals. The level of mutagenesis was estimated basing on chromosome aberrations and genomic mutation frequencies in bone marrow cells of natural rodents populations (Allactaga major Kern, Allactaga saltator Eversman, Cytellus eritrogenus Br.) and domestic animals (sheep, cattle, horse), which inhabit these regions. Sheep populations which are bred in the regions with different climatic conditions were used for teratological investigations. Different generations are met in the populations of mice family rodents caught in the nature. So studying the animals of different ages separately we can estimate the frequency of mutations in the animals of different age inhabiting the same radiation polluted regions. The frequency of chromosome abe rations in mice family rodents from such territories was twice as high as from the clear territories. In some animals chromosome aberration types characteristic for radiation mutagenesis (dicentrics, double acentric fragments) were found. High level of cytogenetical instability in somatic cells of agricultural animals which were bred on the pastures within former nuclear test territories for several generations may be caused by chronic radiation in low doses. The analysis of the spectrum of recorder chromosome aberrations in somatic cells and their dynamics in different animal species inhabiting for several generations these territories being chronically irradiated, allows us to investigate the direction of genetical evolution of mammals genofond structure induced by ecological factors. Comparative analysis of the frequencies of spontaneous abortuses, deadborn and newborn animals with innate developmental anomalies in the flocks bred in different environment conditions may obtain essential information about the influence of the negative anthropogenic environmental factors on the animals genotype. Indeed, different developmental anomalies frequency was recorded for the sheep populations from different environments and different selection directions which were carried out for many years. It was found that some types of innate developmental anomalies caused by environmental factors. Endogenic factors also Contribute to etiology of some developmental anomalies. In some lambs with innate anatomical defects about 47% bone marrow cells displayed chromosome aberrations and genomic mutation

[en] The paper describes the basic methods and forms of information work on radiation hygienic subjects, conducted by the State sanitary supervision at the regional level. (authors)

[en] Results of 15-years researches indicate, that restoration of number of earthworms in a pine forest mossy in strongly polluted territories runs slowly and this number is approximately 10 times less than in the year 1987. Accordingly, activity of saprophages essentially reduced. (authors)

[en] It is well known that in clinics of late consequences of low radiation doses action the principle place takes vegetative and vascular dysfunctions. For estimation of vegetative-vascular system tone the Danini-Ashner of eye-heard reflex is studied. Status of the reflex for 120 examined patients was studied. Results of investigation of Danini-Ashner reflex in relation of received dose of radiation, as well as results of skin temperature of sicks with different levels of low radiation doses late consequences are presented. For study of vegetative-vascular system the electro-skin resistance method was used as well

[en] The long-term effects resulting from an accidental release of radioactive material are considered. The magnitude of the release is defined in terms of the percentage of total excess cancer mortalities relative to the number that would have been expected in the same population had the accident not occurred. The increase risk is expressed as the change in life expectancy as a function of age at the time of exposure. Loss of life-years per person are calculated for an increase of 0.1%, 1%, 10%, and 100% in cancer deaths and are quoted for ages 1, 10, 20, 30, 40 and 50 years at the time of exposure. The variation of the effect with age may be summarised using the ratio of the reduced life expectancy to the reduced life expectancy for a person aged zero at the time of the accident. For the initial dose, this ratio exhibits a linear decrease up to about 45 years at the rate of about 2% per year so, for example, the increased risk for a person aged 40 years at exposure is 20 % of the increased risk of a child just born. Similar estimates are made for a dose which is prolonged over 50 years, to represent doses from internally incorporated radionuclides. (author)

[en] Short communications

[en] The analysis of actions for decrease dose loadings of students is carried out during passage of educational practice to a zone of radioactive infection. The carried out analysis has shown effectiveness of the chosen actions for decrease dose loadings at work in a zone r/a infections. (authors)