[Effect of ozone therapy on hemostatic changes in patients with vascular atherosclerosis].

Hemostatic changed induced by ozone therapy were studied in 81 patients with atherosclerosis of different vessels in 81 patients. It was found that use of ozone-oxygen mixtures leads to hypocoagulatory changes (diminution of platelet aggregation, lowering of fibrinogen concentration, prolongation of activated partial thromboplastin time, enhanced fibrinolytic activity) which contribute to clinical response.

Nonstationary amplification of the holographic recording in doped BSO crystals: a base for photorefractive incoherent-to-coherent optical conversion.

An effect of nonstationary amplification of the holographic recording in pure and transition-metal doped crystals of the sillenite type (Bi(12)SiO(20), or BSO), irradiated in advance with light from the red or near-infrared spectrum, is investigated. This amplification can serve as a base for incoherent-tocoherent optical conversion. It is found that BSO crystals doped with iron and cobalt have a highersensitivity and much wider spatial-frequency range, where the effect of the amplification can be observed,compared with nondoped crystals.

Simple laser microrefractometer.

A new simple method for determining the magnitude of the refractive index of small volumes of liquid is proposed. The results obtained are close to the expected within the accuracy of the goniometer utilized.