[Morphologic changes due to hyperthermia (experimental study)]. / Morfologicheskie izmeneniia pri peregrevanii (éksperimental'noe issledovanie).

Acute and chronic overheating appeared to induce similar shock reaction in all organs, with systemic disorders of microcirculation. The organs demonstrated irreversible hemodynamic disturbances with secondary hypoxic injury. Structural disorders in organs result in their functional deficiency and subsequent pathologic conditions.

[Features of change of the functional state as related to the development of disorders of the osteomuscular system in workers exposed to regional physical overloads coupled with vibration and noise]. / Osobennosti izmeneniia funktsional'nogo sostoianiia v sviazi s razvitiem zabolevanii kostno-myshechnoi sistemy u rabochykh, podvergaiushchikhsia vozdeistviiu regionarnykh fizicheskikh peregruzok v sochetanii s vibratsiei i shumom.

Physiological parameters were studied in industrial settings as well as in laboratory experiments and clinical examination characterizing the condition of the most important bodily systems in drivers of the technological motor transport and excavator operators working in the iron-ore open-cut mines. Differences have been revealed in the state of physiological indices in those workers with incipient manifestation of disorders of the osteomuscular system (OMS) as compared to workers in the identical service-duration group free from OMS disorders, suggesting individual sensitivity to exposure to regional physical overloads coupled with vibration and noise and warranting further studies on development of methods and criteria for individual sensitivity to exposure to the above factors in order that prophylaxis against OMS disorders might be improved.

[The role of labour conditions in the development of osteo-muscular system disorders in workers of the iron-ore industry]. / Otsenka roli uslovii truda v razvitii zabolevanii kostno-myshechnoi sistemy u rabochikh zheleznorudnoi promyshlennosti.

As a result of the investigation conducted, differences have been revealed of effects of the studied factors of labour conditions and its quantitative values on development of disorders of the osseomuscular system depending on the character of labour. In workers of basic occupations in iron-ore mines, the development of radiculopathy qualified as an occupational problem, has been shown to be determined by exposure to a complex of studied adverse factors of the occupational environment and labour process by 35% (very high degree of the effect exerted), including local vibration--by 14%, time of keeping a required working posture standing--by 7.2%, air temperature difference--by 7.4% (high and moderate degree of the effect exerted). The above adverse factors are to be considered in sanitary-and-hygienic characterization of the working place and taken account of in attempts to ascertain relatedness of the illness in question to the worker's occupation and in implementing measures designed to administer primary and secondary prophylaxis. In those workers engaged in occupations of the sensomotor kind operator's work, development of spinal osteochondrosis is determined by 25.4% by action of a complex of the studied factors of labour conditions; of this percentage, 22.4% have been shown to be caused by a number of working (operating) movements during the shift (very strong impact), which fact necessitates qualifying the condition as an occupational disease and suggests increase in the role of improvement in labour conditions in its prophylaxis.

[Occupational standing vibration rate and vibrational diseases]. / Stazhevaia doza vibratsii i vibratsionnaia bolezn'.

Occupational standing vibration rate is proposed in evaluating a degree of impairment of an organism activity. It will allow more widely to introduce specification of quality and quantity in assessment of the development of vibrational disease. According out-patient and inpatient obtained data we have established criterial values of functional changes in accordance with accumulated occupational standing vibration rate. The nomogram was worked out for defining a risk of the development of vibrational disease in mine workers. This nomogram more objectively can help in diagnostics of the disease.

[Morbidity with temporary loss of work capacity in workers in the operational jobs of the main metallurgical manufactures]. / Zabolevaemost' s vremennoi utratoi trudosposobnosti u rabotnikov operatorskikh professii osnovnykh metallurgicheskikh proizvodstv.

Study into morbidity involving temporary unfitness for work among workers of operating vocations in the basic metallurgy industries versus those working in the repair-and-machine shops, maintenance workshops, revealed high levels of temporary disability in the former working populations, especially in respect of such health disorders as diseases of the digestive organs, affections of the nervous, cardiovascular and osseomuscular systems, that were noted to go upwards with length of service and age of the workmen. Significant differences in morbidity pattern and level in vocational groups as a whole and in respect of classes of disorders and nosological forms were found out to be related to labour pattern and its conditions, degree of strain, physical strength and mental concentration the work to be done was demanding of, level of exposure to adverse occupational factors common in metallurgy industry. Methodical recommendations have been worked out concerning preventive strategies toward occupational health problems.

[The characteristics of the manifestation of duodenal peptic ulcer in metallurgists]. / Osobennosti proiavleniia iazvennoi bolezni dvenadtsatiperstnoi kishki u metallurgov.

The course of duodenal ulcer in metallurgists is characterized by some peculiar features, such as local antral gastritis with the gastric mucosa atrophy, signs of severe dysplasia, duodenogastric reflux in a major proportion of the patient population. The above patients are to be medically supervised by regular contact surveys, with the preventive procedures being inaugurated on an as-needed basis to keep the patient recurrence-free.

[The morbidity characteristics of diseases of the bone and muscle systems in workers in iron-ore mines and quarries depending on the conditions and nature of the work]. / Osobennosti zabolevaemosti bolezniami kostno-myshechnoi sistemy u rabochikh zheleorudnykh shakht i kar'erov v zavisimosti ot uslovii i kharaktera truda.

In terms of applying for medical advice in osteomuscular disorders, taking second place in the structure, it has been established that in practically identical values for the general level of morbidity, the incidence rate of lumbosacral radiculites, myalgias and myosites in drifters and drillers is 5.8 and 2.5 times as high respectively, that of thoracic and lumbar, cervical osteochondrosis, epicondylitis in drivers--3.9, 2.4, and 3.3 times as high, which facts might suggest an important role in the etiology of the above conditions, in the first place, of great physical loads plus high levels of noise, vibration, cooling microclimate, in the former case, and such loads coupled with high nervous and emotional tension, general low frequency vibration, noise, in the latter case. The established level and structure of occupational disorders of the locomotor system in both groups workers suggest their inadequate identification in respect of both amount and nosology.

[Occupational disease among miners of the Kursk Magnetic Anomaly (from the experience of the work of the Institute of Industrial Hygiene and Occupational Diseases in Heavy Metallurgy)]. / Professional'naia zabolevaemost' sredi rabochikh gornorudnykh predpriiatii Kurskoi magnitnoi anomalii (Iz opyta raboty instituta--kuratora po problemam gigieny truda i professional'nykh zabolevanii v chernoi metallurgii.

The materials are first to present analysis of occupational morbidity among miners of variable age, length of service, various occupations, who work at Kursk Magnetic Anomaly. The recommendations on lower occupational morbidity are presented.

[Morbidity in the adult population living in a region neighboring a metallurgical complex]. / Zabolevaemost' vzroslogo naseleniia, prozhivaiushchego v prilegaiushchem k metallurgicheskomu kombinatu raione.

It has been established as a result of the survey done that the morbidity rate among the adult population living in the region neighbouring the integrated steel plant is higher as compared with the population residing in conventionally "clean" zone, both taken as a whole and with respect of most disease classes studied as evidenced by the rate of applying for medical advice. An adverse impact on human health of the releases from the integrated steel plant is implicated to be a cause of the above observation.

[Combined effect of the chief chemical elements in the manufacture]. / Kharakter kombinirovannogo deistviia osnovnykh khimicheskikh élementov v proizvodstve metallokeramiki.

Character of the combined effect of main dust components in working zone air of cermet enterprise is determined. Graphic method for assessment, forecasting and hygienic correction of air quality is suggested.

[The effect of elevated environmental temperature on the development of a potassium deficiency in the body]. / Vliianie povyshennoi temperatury okruzhaiushchei sredy na razvitie defitsita kaliia v organizme.

Electron microscopy and roentgen microanalysis were used to study the ultrastructure and electrolytic balance of K+, Na+ and Cl- of the animal myocardial tissue during general body hyperthermia. It was established that long-term effect of heating microclimate causes a distinct reduction of K+ in the cardiomyocytes accompanied by essential changes of the ultrastructure of ischemic character.

[Temporary work incapacity in the workers of the heat-treatment shops of the metallurgical industry due to diseases of the digestive system]. / Vremennaia netrudosposobnost' rabochikh goriachikh tsekhov metallurgicheskoi promyshlennosti, obuslovlennaia bolezniami pishchevaritel'noi sistemy.

Transitory disablement in 5886 workers engaged for the whole year into heat treating metallurgy was compared during 5 years (1981-1985) with that in 291 workers engaged into repairing mechanical occupations so as to reveal metallurgical occupational factors influencing on gastrointestinal morbidity. Metallurgical occupational hazards harm the health status in workers engaged into heat-treating metallurgy, induce the gastrointestinal disorders, which are demonstrated by the elevated transitory disablement. The workers engaged into heat treating metallurgy showed higher gastrointestinal morbidity rate than those engaged into repairing mechanical work.

[The industrial environment in the electric-furnace steel smelting, converter and open-hearth furnace methods of manufacturing manganese-alloyed steels]. / Sostoianie proizvodstvennoi sredy pri élektrostaleplavil'nom, konvertornom i martenovskom sposobakh proizvodstva legirovannykh margantsem stalei.

Inspection of the environment in manganese-alloyed steel production showed inadequate hygienic conditions of the technological processes employed. Air was more polluted by manganese oxides during the oxygen-converter process though their highest concentrations, 38 times exceeding the MAS, appeared during the casting of steel. An electric furnace coated by dust-noise-proof material and gas cleaning is preferable from a hygienic point of view. The influence of unfavourable microclimate, intensive infrared irradiation and loud noise on workers necessitates automation and mechanization of the process in order to improve the working conditions.

[Methodology problems of in-depth studies of occupational diseases]. / Nekotorye metodicheskie voprosy uglublennoi razrabotki profzabolevaemosti.

The article sets forth some methodological issues related to the substantial analysis of occupational morbidity. Confirmed is the necessity of stratifying the morbidity along the line of individual professions and professional groups, of inviting scientists from technical research centres, practical physicians for elaborating preventive measures in occupational medicine.

[The prevention of gastroduodenal diseases in metallurgists]. / Profilaktika gastroduodenal'nykh zabolevanii u metallurgov.

Prophylactic treatment was carried out in 32 metallurgists suffering of gastroduodenal diseases. The treatment included Eleutherococcus, alpha-tocopherol acetate, methyuracil, milfoil, nettle leaves, wort and camomile leaves, oxygen foam cocktails. Clinical, biochemical, immunological, endoscopic and morphological examinations revealed efficiency of the prophylactic treatment.

[The temporary loss of work capacity in workers in the hot shops of the metallurgical industry due to diseases of the circulatory organs]. / Vremennaia netrudosposobnost' rabochikh goriachikh tsekhov metallurgicheskoi promyshlennosti, obuslovlennaia bolezniami organov krovoobrashcheniia.

It was established that morbidity with temporary loss of working capacity due to diseases of the circulatory organs showed a tendency towards increase among workers of modern hot shops of the blast furnace, steel-smelting furnace, converter and the steel rolling industry. Most frequent in these category of workers was incidence of ischemic heart disease, hypertensive disease and hemorrhoid. The incidence varied among different professions enumerated above and depended also on the age, working conditions. The nosological entities varied as well.