SOME CHARACTERISTICS OF THE ORAL CAVITY AND TEETH OF COSMONAUTS ON MISSIONS TO THE INTERNATIONAL SPACE STATION.

Earlier studies were furthered by examination of parodentium anaerobic microbiota and investigation of gingival liquid immunological factors in space flight. Immunoglobulins were measured using the .enzyme immunoassay (EM).

[Means and methods of personal hygiene in the experiment with 520-day isolation].

Six volunteers (3 Russians, a Frenchman, an Italian and a Chinese) participated in assessment of the input of sanitation and housekeeping provisions to their wellbeing during 520-day isolation and confinement. Subject of the study was quality and sufficiency of housekeeping agents and procedures as well as more than 60 names of personal hygiene items. The sanitation and housekeeping monitoring involved the clinical, hygienic and microbiological methods, and also consideration of crew comments on the items at their disposal and recommended procedures.

[Effectiveness evaluation of the sanitary-hygienic measures during 105-day isolation].

The sanitary-hygienic well-being of 6 volunteers for the 105-d chamber experiment simulating some of the spaceflight factors was evaluated. To evaluate the pertinent means and methods, clinical, hygienic and microbiological investigations were employed, and volunteers' subjective opinions of personal hygiene items and associated procedures were analyzed Based on the examination of integument and oral cavity, entries in the questionnaires concerning subjective sensations, opinions and objective data, all volunteers were invariably in good state. Level of the skin total microbial contamination was found to depend on volunteers' diligence to fulfill the hygienic routine.

[Evaluation of the practicability of linen bed-clothes and underwear in space flight].

The evaluation was performed in a pressurized chamber (ground-based experimental facility) with participation of nine volunteered test-subjects. Linen and cotton underwear and bed-clothes were intercompared by physiological and hygienic well-being of the test-subjects Comparison was made with the help of methods of the sanitary-hygienic assessment and clinical-physiological investigations, and subjective data. Alterations in integument microflora were observed in all the test-subjects irrelative of type of textile.

[The use of nanofiltration for regenerating different types of water for sanitation and hygiene obtained in a hermetically sealed cabin].

Presented are results of evaluating transportability and selectivity of Russian OPMN-K membrane coil nanofilters used in a chamber experiment (project EPOKSI [correction of ECOPSI]-95) to clean washing water containing different detergents. OPMN-K nanofilters were potent to extract no less than 96 to 98% of permeate with the organic selectivity reaching 80 to 90%. The detergent-dependent dynamics of capacity and selectivity and data of analyses of producible permeates and concentrates are reported.