Surface state of sacrificial copper electrode by electropolishing in hydrophobic ionic liquid 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide.

Anodic dissolution of natural surface-oxidized, air-annealed, cathodically reduced, and cathodically deposited copper in hydrophobic ionic liquid 1-buthyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide under galvanostatic conditions by means of gravimetric measurements was studied. The resulting samples were mirror-like oxide-free copper pattern. The mechanism of the electropolishing of oxidized copper surface was considered.

[Urgency of comparative spectral analysis of noises in sanitary inspection].

Spectrum (presentation, an image) is a set of all values of any that characterizes, for example, sound-wave propagation. In exact sciences, the expansion of oscillatory function in terms of harmonics, by calculating the Fourier coefficients denotes a spectral analysis. The paper discusses how to further improve the existing sanitary document regulating the order of noise measurement in the area of an apartment block and in residential and public buildings.

[Infusion-transfusion therapy of acute blood loss during early surgeries in children with severe thermal trauma].

Research results of the central hemodynamics, microcirculation and of oxygen status are described for 48 children (aged 8 months to 14 years) as observed during surgeries aggravated by massive hemorrhage in the routine infusion-transfusion therapy plus a 6% solution of INFUKOL GEK. Solution dosages of 6% were approved; the drug's positive effect on the central-hemodynamics condition, microcirculation and on the oxygen regime, as observed in the process of the infusion therapy made to compensate for a massive blood loss, was demonstrated; besides, the related shrinking of the infusion therapy total volume and the possibility to give up totally or to significantly reduce the blood-drug preparations, administered intraoperatively, were shown.

[On methods for unambiguous assessment of occupational environmental factors in occupational medicine].

Suggested system to formalize hygienic information is designed for definite and unambiguous assessment of varied totality of occupational environmental parameters in specific object of sanitary supervision; for study and analysis of physiologic, hygienic and clinical dependencies of workers' health state on the work conditions; for further specification of scientifically based prophylactic measures and social economic protection of workers.

[Forecasting harmless service and work safety for able-bodied population].

The authors suggest medical and mathematical simulator for forecasting hygienically harmless length of service with consideration of occupational load and other circumstances causing human wear and ageing. Forecasting length of individual occupational longevity is a way to novel system of work safety and health preservation for able-bodied population.

[Instrumentation for ultrasound diagnosis of vascular diseases].

The paper describes the computer-based ultra-sound medical instruments worked out by the authors to diagnose the diseases and traumas of the brain, vessels, arteries and cerebral veins as well as of pathologies of the upper and lower extremities. The portable instruments are capable of four diagnostic methods: echoencephalography, echopulsegraphy as well as ultra-sound and transcranial Doppler-graphy.

[The results of a 5-year study of listeriosis in Ukraine].

Data on the isolation of Listeria spp. cultures on the territory of Ukraine, the frequency of Listeria contamination of alimentary raw materials and foodstuffs, the level of listeriosis morbidity, the clinical forms of the manifestation of this disease, as well as the occurrence of asymptomatic carriership among clinically healthy persons of epidemiologically significant professions, are given. The results of the study of the biological properties of 73 strains of Listeria spp.

[Listeria bacterial carriage: a method for sanative treatment].

1.6% of clinically healthy women active in certain professions have been found to be carriers of pathogenic species of Listeria. The study of the sensitivity of 73 strains of Listeria spp.

[Development and approbation of polymerase chain reaction for detection of pathogen in Listeria infection].

A system of primers for detection of Listeria by polymerase chain reaction (PCR) has been developed. Specificity and sensitivity of the method was evaluated by analyses of reference clinical and abiotic samples. Clinical trials of PCR were carried by detecting latent (asymptomatic) carriers of Listeria among healthy women of epidemiologically significant professions.

[Characteristics of anesthesia in trauma surgery in children with severe burn injuries].

The authors analyze total anesthesia in 347 children with thermal injuries, subjected to traumatic operations involving massive blood loss. A characteristic feature of total anesthesia in children subjected to early necrectomies was a lower dose or refusal from cholinolytics for premedication, endotracheal multicomponent narcosis with ketamine, fentanyl (promedole) in the minimal doses in parallel with inhalation anesthesia by fluothane traces and a nitrous oxide-oxygen mixture with at least 50% oxygen. The optimal initial dose of nondepolarized myorelaxants in burnt children is 30-50% higher than the recommended dose and is determined by the size and depth of injury.

[The determination of the volume (weight) of an inoculate applied using the Semenikhina-designed replicator].

The weight (volume) of inoculate applied with Semenikhina's replicator stamp with 1, 2, and 3-mm needles is determined. The method is sufficiently precise for microbiological screenings. The volume of inoculate depends on the diameter and geometrical shape of the needle and characteristics of inoculated substance and surface onto which it is applied.

[Summarizing experience concerning certification of workplaces based on work conditions].

The article contains theoretic principles derived from the author's practice of working environment assessing. The author suggests and justifies definition for the assessing procedure, necessitates improvement and updating of current leading documents. Important notion is that development of governmental function--regulation of work safety--that is new for Russia, but common for developed countries, forms a first step--organization of governmental institution.

[The characteristics of the action of nondepolarizing myorelaxants during operations on children with thermal injuries].

Effects of nondepolarizing myorelaxants pancuronium, arduan, and tracrium were studied during surgery in 347 children with thermal injuries aged from several months to 15 years. Nondepolarizing myorelaxants are drugs of choice for providing myoplegia in children operated on for thermal injuries. The optimal initial dose of these agents in children with burns is 30-50% higher than the recommended dose and depends on the size of the lesion.

[The characteristics of the biological properties of Listeria strains isolated in Ukraine and Belgium].

Biological characteristics of 21 strains of bacteria of Listeria genus have been studied in Ukraine and Belgium. Morphological, cultural biochemical properties of cultures have been described. It has been proved that 85.

[The basic mechanisms of microcirculatory disorders before and during operations in children with developmental defects of the kidneys and urinary tract].

The authors studied biomicroscopic picture of microcirculation in the vessels of bulbar conjunctiva, renal hemodynamics, blood cell metabolism in 50 patients aged 3-12 with renal and ureteral defects. By morphology of the kidneys assessed at aortography, computer renangiography and other tests 2 groups of children were identified: bilateral congenital urological disorder combined with severe advanced dysplasia of the renal tissue and the ureter, low renal function (group 1); light or moderate disorder of renal function, minimal dysplasia of the renal tissue. In children with renal and urinary defects with renal dysfunction there was systemic abnormal microcirculation (group 1) characterized by severe capillarotrophic insufficiency in the form of unusual winding of all the microvessels, formation of vascular loops and balls, narrowing of capillary lumen, etc.

[Again about occupational diseases].

The article deals with a new physiologic and hygienic approach to evaluation of risk factors for occupational diseases and proves their occurrence even in individuals who have no exposure to critical and intensive work conditions causing occupational diseases.

["Even", integral indicators in systemic mathematical analysis of fatigue].

The article considers 3 different points of view on systemic mathematical analysis of human fatigue process. In this case, the same physiologic information is processed according to various algorithms for integral and digital estimates of lowered performance and energy expenditure, as well as indirect characteristics of inhibition and excitation processes in the brain cortex. The mathematical results are applied in computer forecasting of individual occupational risk at the specific workplace.

[Systematic mathematical modeling of functional tension in a working man].

A bipolar pattern of human work was applied to evaluate the dependences of human functional status and capacity for work on occupational factors, work algorithms, etc. The results lead to a conclusion that the relationships of intellectual and physical elements of work have a special influence on the correlations between functional status and three main structures of the pattern: industrial conditions, working process and other acting circumstances (from emotions to social and everyday life). The pattern enables to base automatic controlling systems taking into account the complete human functioning, to make a durable forecast of human health and capacity for work, which is very important for medical insurance.

[Results of reconstructive surgery of the blood vessels in injuries of the distal regions of the upper extremities].

Remote results of the treatment of 68 patients with an associated trauma of the forearm were studied. Complete recovery of the hand functioning was noted in 63,2% of the patients. In 22% of the patients with severe associated traumas the extremity function was considerably worse despite the reestablished blood circulation.