[New methodological approaches to the detection and quantitative registration of Salmonella in the study of water objects].

The paper gives data on the use of techniques to detect and register Salmonella in the water objects, by applying a new liquid nutrient medium. Experimental and field studies have shown its advantage over the accumulation media widely used in practical healthcare. It has been ascertained that the nutrient medium not only accumulates biomass, but also provides the restoration of the biological properties of uncultivated Salmonella species.

[Influence of some weather factors and the geomagnetic activity on the development of severe cardiological pathologies].

The influence of weather factors (atmospheric pressure and temperature) and the geomagnetic activity on the development of severe cardiological pathologies has been studied using the daily data from two Moscow clinics, accumulated over a period of 12 and 7 years. It was shown that the most biotropic factors are variations of atmospheric temperature. The relative contribution of the geomagnetic activity to the development of diseases is only 20%; however, its action is combined with the effect of ordinary weather because both these factors affect the vascular tonus of humans.

[Immunity to diphtheria in population of Rostov-on-Don city and Rostov region in recent years].

Aim: To study the magnitute of antitoxic immunity against diphtheria in different age groups of Rostov-on-Don city and Rostov region population.

Materials And Methods: Antitoxic immunity against diphtheriawas studied in children 3 - 15 years old (661 persons) and adults 16 - 59 y.o.

[Mapping of quantitative trait loci (QTL) associated with activity of disulfide reductase and lipoxygenase in grains of durum wheat Triticum aestivum L. seeds].

Activity of two enzymes of thiol-disulfide cell metabolism, lipoxygenase (LOX, EC 1.13.11.

[Pathogenicity of Corynebacterium diphtheriae circulating in Rostov-on-Don City and Rostov region during interepidemic period].

Main pathogenic characteristics (toxin production, tox-gene detection, adhesiveness) of 59 strains of C. diphtheriae circulating in Rostov-on-Don city and Rostov region in 2004-2005 were studied. Study of toxigenicity of 15 tox+ C.