Physiological criteria dynamics of mastering technique of the autogenous training

The purpose of study was to investigate the short-term and long-term effects of the autogenous training (AT) and to search the evaluation criteria of successfulness of AT mastering. It was carried out a comparative analysis of dynamics of changes of the galvanic skin response (GSR), ECG and infrared irradiation of hands, as during the session, as well as at the initial and final stage of the AT course. 10 patients have been studied: 5 women and 5 men aged 19-21 years. AT training was implemented basing on the classic Schulz method for 20 sessions. On the basis of the dynamics of physiological characteristics it was established that the GSR reduction is the most representative indicator of the short-term adaptation to AT. The ability to voluntarily prolong the R-R interval was determined as a criterion of successfulness of mastering of AT. The ability to voluntarily increase temperature of the hands during the AT session was determined as the most significant parameter of the long-term adaptation to AT. The revealed physiological criteria of dynamics of acquisition of AT can be used in practice; availability of instrumental diagnostics means, including the portable infrared thermometer CEM TermoDiagnostics and the automatic tonometer, can contribute to a more widespread application of AT tech-niques.

Crystallization Kinetics and Texture Evolution in Iron-Based Amorphous Alloys under a Magnetic Field

Crystallization kinetics and texture evolution in iron-based amorphous alloys (Fe78Si9B13, Fe73.5Si13.5B9Nb3Cu1) under a magnetic field have been studied. We have found that the application of a magnetic field during crystallization at a temperature ranging the Curie point of the amorphous phase and that of the crystalline bcc-Fe(Si) phase can produce a {110} texture in the alloys. X-ray diffraction with the Schulz method revealed that {110} oriented grains were preferentially nucleated due to the magnetic field. The studies of crystallization kinetics found that the nucleation rate of the α-Fe(Si) phase in amorphous Fe73.5Si13.5B9Nb3Cu1 was enhanced approximately three times as high with the 6T magnetic field than without field. The volume fraction of crystalline α-Fe(Si) phase produced was increased by the magnetic field.