Conversion of the Propane-Butane Fraction into Arenes on MFI Zeolites Modified by Zinc Oxide and Activated by Low-Temperature Plasma.

The effect of modification of MFI zeolite 1-5 wt.% ZnO activated by plasma on acid and catalytic properties in the conversion of the propane-butane fraction into arenes was investigated. The high-silica zeolites with silicate module 45 were synthesized from alkaline alumina-silica gels in the presence of an 'X-oil' organic structure-forming additive.

[Radionuclide evaluation of myocardial perfusion in intensive physical training in patients with a history of myocardial infarct].

Forty patients who had had myocardial infarction six months before their entry into the study were examined using perfusion scintigraphy of the myocardium with 201TI. The patients were divided into the test and the control group. The patients of the test group trained intensively for 12 months according to the special programme which contributed to an improvement of myocardial perfusion at rest irrespective of the nature of the previous myocardial infarction and the clinical severity of coronary insufficiency.