Autonomous portable pulsed-periodical generator of high-power radiofrequency-pulses based on gas discharge with hollow cathode.

Portable autonomous generator of high-power RF-pulses based on the gas discharge with hollow cathode has been designed, fabricated, and tested. Input and output characteristics are the following: discharge current amplitude is 800 A, duration of generated RF-pulses is 350 ns, carrier frequency is ∼90 MHz, power in RF-pulse is 0.5 MW, pulse repetition rate is 0.

[Surgical treatment of "minor" forms of bronchiectasis].

A total of 835 operations were conducted for bronchiectasis on 734 patients (75.9% were children and adolescents). The late-term results of operations for "minor" forms of the disease in 118 patients are discussed.

[A structural study of crystallins in the normal and cataractous crystalline lens by x-ray diffraction].

Nucleus of the normal and cataractous human lenses were studied by means of the X-ray diffraction method. The conformational changes, as it is shown, take place during cataract formation. The similar as in senile cataract, conformational changes of bovine lens crystallins were induced by UV irradiation.

[Comparative study of crystallins from the nucleus and cortex of the bovine ocular lens by the gel filtration and x-ray diffraction methods].

Water--soluble proteins (alpha-, beta H-, beta L- and gamma-crystallins) from the bovine lens nucleus and cortex were fractionated and compared by gel filtration on Sephadex G-200. X-ray diffraction patterns from concentrated gels of these proteins were obtained. It allowed to compare qualitatively the structures of different crystallins and also to identify the maxima on X-ray diffraction patterns of the lens intact tissue.