Broad-beam plasma-cathode electron beam source based on a cathodic arc for beam generation over a wide pulse-width range.

We describe the design, parameters, and characteristics of a modified wide-aperture, plasma-cathode electron beam source operating in the pressure range of 3 Pa-30 Pa and generating large-radius, low-energy (up to 10 keV) electron beams with a pulse width varying from 0.05 ms to 20 ms and a beam current up to several tens of amperes. A pulsed cathodic arc is used to generate the emission plasma, and a DC accelerating voltage is used to form the electron beam.

Fibrinogen degradation products in plasma following induced hyperfibrinolysis.

Objective: To detect fibrinogen degradation products (FDP) in blood as a result of induced hyperfibrinolysis.

Design: This in-vitro and in-vivo study compared the relationship between the plasma FDP levels, the rate of their production, the degree of fibrinolysis and the effect of protease inhibitors in primary hyperfibrinolysis conditions.

Setting: Department of Medical Biochemistry, Kharkov General and Emergency Operational and Research Institute, Ukraine in collaboration with the Department of Biochemistry, University of Nairobi, Kenya.

[Meiotic gynogenesis in the stellate, Russian sturgeon and sterlet].

Diploid gynogenetic progenies were obtained in the stellate sturgeon Acipenser stellatus, Russian sturgeon A. gueldenstaedtii, and sterlet A. ruthenus by means of insemination of the eggs with UV-irradiated spermatozoa and suppression of the second meiotic division by heat shock.

[The microbiocenosis of the large intestine in animals with constant radiation exposure in the area of the Chernobyl Atomic Electric Power Station].

State of microbiocenosis of large intestine in rats and furo subjected to constant combined irradiation has been studied in full-scale experiments in the emergency rooms of the Chernobyl NPP and in the nearest zone of its effect. The higher diversity of microflora (as compared to initial one), sharp increase of the amount of Candida genus fungi, a decrease of the number of bifidobacteria and increase of the amount of conditionally pathogenic flora were observed in rats with the dose of external irradiation of 1.43 Gr absorbed for 14 days.

[Enzyme diagnosis of liver dysfunction in acute myocardial infarct and its complications].

A complex of enzymatic tests, characterizing the liver function and cellular cytolysis in patients with acute myocardial infarction of various severities (without complications and with various types of complications and outcomes) was used in examinations over the first week of the disease. Significant changes in five of the seven tested enzymes were found: aspartate aminotransferase, glutamate dehydrogenase, sorbitol dehydrogenase, cholinesterase, alanine aminotransferase, the degree and incidence of changes in their activities being the lowest in the patients with acute myocardial infarction without complications, higher in those with this condition with isolated complications, still higher in those with combined complications and a favorable outcome, and the highest in those with combined complications and a lethal outcome. Secondary hepatopathy in patients with acute myocardial infarction augments as the complications develop, particularly in arrhythmia, disordered conductivity, and combined complications.