Oxidation of Ceramic Materials Based on HfB-SiC under the Influence of Supersonic CO Jets and Additional Laser Heating.

The features of oxidation of ultra-high-temperature ceramic material HfB-30 vol.%SiC modified with 1 vol.% graphene as a result of supersonic flow of dissociated CO (generated with the use of high-frequency induction plasmatron), as well as under the influence of combined heating by high-speed CO jets and ytterbium laser radiation, were studied for the first time.

Investigation of the Effect of Supersonic Flow of Dissociated Nitrogen on ZrB-HfB-SiC Ceramics Doped with 10 vol.% Carbon Nanotubes.

The method of fabricating dense ultra-high temperature ceramic materials ZrB2−HfB2−SiC−CCNT was developed using a combination of sol-gel synthesis and reaction hot pressing approaches at 1800 °C. It was found that the introduction of multilayer nanotubes (10 vol.%) led to an increase in the consolidation efficiency of ceramics (at temperatures > 1600 °C).

[The chemico-toxicological determination of dilthiasem].

The objective of the present study was to determine the optimal conditions for isolation of dilthiasem, its purification by the combination of the extraction and column chromatography techniques, and the development of the universal method for the detection of this compound in the biological material. Other research methods included thin layer chromatography (TLC), gas chromatography mass-spectrometry (GH-MS), extraction, low-pressure column chromatography, and spectrophotometry. The effectiveness of dilthiasem isolation from the biological material with the use of 12 organic substances, water, and aqueous solutions was compared.

[Efficiency of non-medicamentous therapy and evaluation of intersystemic relationship between functional reserves of the organism and periodontal status in patients with chronic generalized periodontitis].

Mechanisms of mutual influence and aggravation of splanchnic organ and oral cavity diseases are discussed in the context of the integral anthropological approach. The systemic character of analysis of pathogenetic mechanisms of chronic generalized periodontitis dictates the necessity of an absolutely new conceptual outlook of organization and implementation of medical and preventive measures designed to activate sanogenetic responses and to enhance the regulatory potential and functional reserves of the organism in the presence of developing periodontitis. It was shown that inclusion of intermittent hypoxic training in the combined rehabilitative treatment of the patients with chronic periodontitis substantially promotes corrective influences on periodontal tissues and ensures stable clinical effect.

[Interval training in patients with chronic heart failure].

Training sessions with constant level of work load are most often used in cardiological rehabilitation. They are beneficial in secondary prevention of ischemic heart disease and to some or other extent are familiar to practical physicians. At the same time interval training appearing as sequence of short periods of high and low intensity work or pauses are rarely used due to their relative novelty.

[Cardiorehabilitation of patients with stable ischemic heart disease: compliance with treatment].

Aim: To study correlation between compliance with treatment (attendance of training sessions) and clinical symptoms in patients with ischemic heart disease (IHD) in the course of 12-week program of physical training.

Material And Methods: Ergospirometry before and after training was performed in 71 patients with stable IHD (21.1% females, 78.

[Muscular mechanisms of lowering of physical working capacity in chronic heart failure and action of beta-adrenoblockers].

Parameters of physical working capacity (symptom limited treadmill test with gas analysis, 6 min walk test and usual everyday activity), activity of muscular metaboreflex, efficacy of pulmonary ventilation, and heart rate variability were studied in 50 patients with postinfarction cardiosclerosis with chronic class I-III heart failure and 30 patients without heart failure. Patients with heart failure of all functional classes had lowered parameters of working capacity while metaboloreflex hyperactivation and diminished effectiveness of ventilation were found only in patients with clinical signs of chronic heart failure but not in those with symptomless left ventricular dysfunction. Therapy with metoprolol was associated with lowering of activity of metaboloreflex, augmented effectiveness of ventilation and heart rate variability, improvement of results of 6 min test and everyday activity without considerable changes of peak oxygen consumption.