[Benz(a)pyrenes and N-nitrosamines in dry dairy products].

Results of works induding study of effect of different factors (environment, type of equipment, technology) on content of cancerogenic substances in dry milk products were summarized. Possible reasons of appearance of cancerogens in milk in process of drying were determined, dataes of concentration of benz(a)pyren and N-nytrozamens in milk and warmth carrier before and after drying were established. Explanation of separate appearances which connect with change of quantity of cancerogens in product on different stages of drying was suggested.

[Evaluation of a drying procedure for dairy products coming in direct contact with flue gases from the oncologic viewpoint].

The study was concerned with ambient air and heat-transfer medium levels of benzo(a)-pyrene (BP) and N-nitrosoamines (NA) measured at the input and output of the drying chamber of two milk dryers using different systems of heat generation. Said concentrations were ascertained in the dried product (casein), too. One installation used electricity-heated ambient air, while the other--air-diluted products of natural gas combustion.

[The endoscopic bronchial picture of patients with pulmonary tuberculosis of various age groups].

Endoscopic pictures of the bronchi were studied in 509 new cases of pulmonary tuberculosis. Tuberculosis of the bronchi and its aftereffects such as cicatricial lesions were detected in 31.1 per cent of the children and adolescents, 7.