[Study of some aspects of the mechanism of bacterial synthesis of silver sulfide nanoparticles by mMetal-reducing bacteria Shewanella oneidensis MR-1].

In the present work it was shown that biosynthesis of silver sulfide nanoparticles from silver nitrate and sodium thiosulfate solutions of millimolar concentration occurs efficiently by living Shewanella oneidensis MR-1 cells, as well as by ultrasonically-disrupted cells and by the membrane fraction of the cells. The size of nanoparticles synthesized in the presence of living cells was 7.8 ± 1.

[Bion-M1. Biological activities of microorganisms under the conditions of a 30-day space flight].

It was stated that spaceflight factors (SFF) affect the chromosomal DNA interchange during Streptomyces crossing. Cross polarity and primary input of a parent chromosome fragment in recombinant generation imply a more lasting cells contact in microgravity and a broader horizontal transport of genetic material. SFF had no effect on recombination frequency and mutation in a model of parental auxotrophic markers reversion to prototrophism.

[Endovenous laser photocoagulation for the treatment of varicose vein disease of the lower extremities].

Varicose vein disease of the lower extremities is a challenging socio-medical problem because it is responsible for high disability rate and requires substantial expenditures. According to different authors, the disease occurs in 10.4-23.

[Endoscopic subfascial dissection of perforating veins of lower legs in patients with venous ulcers].

Prospective analysis of the results of endoscopic subfascial dissection of perforating veins of lower legs in 68 patients with venous ulcers is presented. Four patients developed postoperative wound infection. Mean duration of hospitalization was 4.

[Serological detection of Rhesus antigen D in blood traces from Rh-negative (cde) people].

A D-like structure was serologically detected on the internal side of Rh-negative (cde) erythrocyte membrane. This structure is absolutely inaccessible for anti-D antibodies in morphologically intact liquid blood erythrocytes. In hemolyzed erythrocytes of blood stains this antigenic structure, serologically identified as Rh antigen D, is accessible for binding with anti-D antibodies and for detection by the absorption-elution test, particularly so after blood stain treatment with proteases.