Continuous-wave blue generation of intracavity frequency-doubled Pr:YAP laser.

We report the cw blue generation of Pr:YAP laser emission at room temperature, which has been achieved by intracavity frequency doubling of the near-IR-emitting Pr:YAP laser operating at a fundamental wavelength of 747 nm. For active medium pumping, a GaN laser diode providing up to 1 W of output power at approximately 448 nm was used. With beta barium borate crystal employed as a nonlinear medium, 12.

[Abdominal obesity and cardiovascular risk in type 2 diabetics].

A group of 247 middle-aged men and women with diabetes lasting mostly for less than 5 years, treated by diet alone and oral antidiabetics resp. is followed up in the surgeries of nine general practitioners, with special attention to early detection and prevention of macroangiopathies. In the submitted paper the authors focus their attention on the body build of patients and the importance of assessment of abdominal adipose tissue by available anthropometric methods.

Study of fifteen respirable aerosol samplers used in occupational hygiene.

European and international standards lay down criteria for the size-selective aerosol sampling in occupational hygiene. Aerosol samplers are supposed to match these target sampling criteria. This study focused on 15 aerosol samplers used to sample the conventional respirable fraction.

[Serum lysozyme and copper levels in rats after the administration of dust].

Changes in the content of lysozyme and copper were studied in the blood serum of rats in four time intervals (1, 2, 12, and 24 weeks) after administration of 50 mg TiO2, Sio2 or coal dust and the copper content was also studied 12 weeks after administration of 3 industrial dusts. The obtained results were supplemented by histopathological examinations and in the 12-week interval by the determination of the lung wet weight. The lysozyme content was statistically significantly increased compared to controls practically over the whole time course with differences in the level of the response to SiO2 in comparison with the response to TiO2 and coal.

The use of the DENTACRYL rapid (Spofa) resin for preparation of the rat tracheobronchial casts.

We have made tracheobronchial casts of the rat lungs using DENTACRYL Rapid (Spofa)--the synthetic methacrylic resin of Czechoslovak origin. The details of the method are fully described. The differences between preparations of the intact rat tracheobronchial trees and those of the rats after quartz instillation are illustrated.

Alkaline phosphatase activity in relation to LDH5 (L-lactate: NAD+ - oxidoreductase, E.C.1.1.1.27) in patients with precancerous conditions of the endometrium.

We investigated the serum activity of the fifth fraction of L-lactate: NAD-oxidoreductase (E.C.1.