[To the 70th anniversary of the 39th separate medical troop (Airmobile) of Air Force].

On December, 18th, 2014 it is 70 years from the date of creation 39 separate medical troop (aeromobile) of the Air force. The history of troop goes to the Great Patriotic War, when it was organized the 234th separate health battalion, The battalion has passed a fighting way as a part of 106 Guards shooting division from Hungary up to Austria. In the postwar period military personnels of the troop took the active participation in medical maintenance of soldiers-commandos in many local confrontations with the participation of Soviet, and after the Russian Army. During its lifetime the troop was repeatedly reorganized and now it is modern military treatment-and-prophylactic institution, it has in staff 100 beds and does all types of qualified (with elements special-purpose) medical aid to the wounded and sick, carries out the supply to the division of the medical supplies.

[Evaluation of condition and factors affecting activity effectiveness and visual performance of pilots who use night vision goggles during the helicopter flights].

According to analysis of questionnaire authors revealed factors, which affect activity effectiveness, and visual performance of pilots who use night vision goggles during the helicopter flights. These are: difficulty of flight tasks, flying conditions, illusion of attitude. Authors gave possible ways to reduce an impact of these factors.

[Regularities in the variability of species structure of costal littoral kelp: the model analysis]. / Zakonomernosti v izmenchivosti vidovoi struktury pribrezhnogo soobshchestva vodoroslei-makrofitov: model'nyi analiz.

The model describes species structure of competitive community, inhabiting stochastically variable environment. Species list of this community, rearranged accordingly decreasing species abundance, can be described by decreasing geometrical series. According to the model, the value of coefficient of this progression q should be q = exp(-1) = 0.368. The actual data do not contradict statistically to this model constant. Seasonal variability of species structure in biotopes is observed. These biotopes differ one from another by the stability and heterogeneity levels of environmental conditions, estimated with the help of expert evaluation. Total community biomass shows two seasonal peaks; at winter and at spring - summer. Maximal values of total biomass are observed in the biotope with intermediate level of environment stability. The number of species is increased simultaneously with the growth of environmental stability. The level of species abundance equitability grows up too in these conditions. The model of geometric series describes the species structure of the macroalgae community quite adequately. At the same time, the positive correlation between sample's species richness and equitability of species structure results in the outcome that after all samples averaging the biomass distribution of species is approximately more accurately not by geometrical series but by power model. The new statistical method is offered in the application to this work. It allows the expose of statistically significant not monotone essential non-linear relations of nonquantitative (order-type) arguments.

[Toxicity of chemicals produced by thermal destruction of synthetic materials based on polyvinyl chloride and used in coal mines]. / Toksichnost' produktov termicheskoi destruktsii sinteticheskikh materialov na osnove polivinilkhlorida, ispol'zuemykh v ugol'nykh shakhtakh.

The experiments on mongrel white rats studied toxicity of the products appearing during thermal destruction of conveyer tape TK-200 based on polyvinyl chloride and used in coal mines. The studies helped to define parameters of acute toxicity and the MACs for products of the conveyer tape burning, considering the main contents and the exposure intensity for 30-120 minutes; to determine jeopardy class; to calculate specific volatilization; to design recommendations for prevention of poisoning during fire in the mines.

[The working conditions and health status of miners in Donets Basin coal mines]. / Usloviia truda i sostoianie zdorov'ia gornorabochikh ugol'nykh shakht Donbassa.

Data are reported on working conditions of coal miners considering the main physical (dust, noise, vibration, microclimate) and chemical environmental professional factors and their prognosis up to the year 2005. The authors analyze professional morbidity (pneumoconiosis, dust-induced bronchitis, vibration disease, cochlear neuritis etc.) and diseases with temporary loss of the working capacity invalidity and mortality of miners. The relation between working conditions and health status of miners were analyzed.

[Sanitary-hygienic assessment of polyurethane foam contents of KH-96 used in sealing of ventilation equipment in coal mines]. / Sanitarno-gigienicheskaia otsenka penopoliuretanovogo sostava KH-96, ispol'zuemogo dlia germetizatsii ventiliatsionnykh ustroistv podzemnykh vyrabotok.

The article contains a hygienic and chemical assessment of the KH-96 polymethane foam plastic material used in air hermetization in coal mines. A set of measures is proposed to ensure safety in working with the material.

[Combined effects of formaldehyde and increased barometric pressure in animals]. / O sochetannom deistvii formal'degida i povyshennogo barometricheskogo davleniia na organizm zhivotnykh.

A study was performed on white rats of the physiological, biochemical, haematological and pathomorphological indices in separate and combined actions of formaldehyde (FA) (60.0 +/- 12.7 mg/m3 in one-time exposition and 7.2 +/- 1.2 mg/m3 in a 30-day long experiment) with a concomitant increased barometric pressure (IBP) characteristic of deep coal mines (111 and 123 kPa corresponding to 1000 and 2000 m deep mines respectively). It was established that, at 123 kPa, lipoid peroxide oxidation process was stimulated in combination with microcirculatory disorders, growing FA concentration in the serum and pulmanary tissues. The shifts were still more vivid at growing IBP.