[Pulsoximetric sensor for diagnosis of intrauterine foetus state during parturition].

Detrimental changes in the degree of blood hemoglobin saturation with oxygen are important evidence of hypoxic states and can be regarded as objective indication to surgical delivery. A new method of fetal pulsoximetry was developed. This method is based on the use of a non-disposable atraumatic pulsoximetric sensor of reflectory type for diagnosis of intrauterine foetus state during parturition.

[Criteria of the accuracy of measurement of cardiocycle duration in systems for monitoring of cardiac rhythm variability parameters].

The use of the criteria of the accuracy of measurement of cardiocycle duration in systems for monitoring of cardiac rhythm variability parameters based on no more than 10% deviation of diagnostic characteristics was shown to provide the measuring error of no more than 4 msec at histogram grouping interval 10 msec. An increase in the grouping interval duration causes a decrease in the sensitivity of diagnostic parameters to patient state and diagnostic mistakes.

[A "neuromyo-test-response 01" device for neuromuscular function control during anesthesia].

The paper outlines the technical data and procedure of using a new "neuromyotest-response-01" device designed by the Novye Pribory (New Devices) Medical Engineering Center (Samara) for estimation of the level of neuromuscular block.

[Study of the optimal conditions of preservation of cephalosporin C-producing fungus Acremonium chrysogenum].

The influence of various preservation conditions of viability and antibiotic activity of Acremonium chrysogenum 281A and 305A strains producing cephalosporin C was studied. Cryogenization of the culture in the form of suspension of the vegetative mycelium in 20 per cent glycerol solution at a rate of 1 degree/min showed to be advantageous over lyophilization and L-drying. Cryogenization under such conditions provided rather high viability of the culture and preservation of its initial antibiotic activity for the period of its storage for at least 1.

[Use of peripheral electro-neurostimulation for obstetric analgesia].

Labor analgesia by antipain peripheral electro-neurostimulation (APES), including paravertebral transcutaneous electro-neurostimulation (TENS), two-channel TENS, rectal electrostimulation, using the Eliman device, was conducted in 234 term deliveries. The results were good or satisfactory in 94.3% of the parturients.

[The ELIMAN-401 analgesic transcutaneous electrostimulator with automatic adjustment of the length of the stimulus].

The authors describe the design of a new electrostimulator for intraoperative and postoperative anesthesia and relief of neurological and traumatological pain. The main technical characteristics and results of clinical tests are presented.

[New species of bacteria in the genus Kurthia--Kurthia sibirica sp. nov].

Six aerobic gram-positive nonspore-forming bacterial strains belonging to the Kurthia genus were isolated from the Magadan (Susuman) mammoth found in the permafrost of the East Siberia. The strains are a phenotypically homogeneous group different from the two known species (K. zopfii and K.

[Analgesia by electric current in the early postoperative period].

In 295 patients in the early postoperative period anesthesia was performed by means of percutaneous electrostimulation with a new national apparatus Eliman-101. The authors note high efficiency of such analgesia in 63,4% of the patients, satisfactory results were obtained in 32,3%. No sufficient anesthesia was achieved in 13 patients (4,3%).

[Transcutaneous electrostimulation and its place in the treatment of chronic pain syndromes].

In 107 patients with chronic pain syndromes, transcutaneous electrostimulation by an apparatus ELIMAN -101 was used in conjunction with drug treatment and physiotherapy. On the basis of a complex of estimation tests, the patients studied were divided into three groups depending on the degree of the analgesic effect. A good analgesic response was obtained in 65.

[Growth and antimicrobial activity of an association of an actinomycete and a green alga].

During joint cultivation of the actinomycetes Streptomyces griseus (strains 65 and 744) isolated from the soil and the green algae Chlorella vulgaris larger amount of biomass as compared with solitary axenic culture have been shown. The relation of biomass of actinomycetes S. griseus strain 65 and S.

[Fructose assimilation by differentiated and undifferentiated variants of Streptomyces roseofulvus].

The difference in the growth on fructose between differentiated and adifferentiated variants of Streptomyces roseoflavus var. roseofungini should be attributed to their different capacity in forming the enzyme system for fructose uptake whose action is induced by this carbohydrate. In the cells of the two variants grown on glucose and mannitol, the process of induction occurs in the presence of chloramphenicol.

[Electron microscopic study of the developmental cycle of an actinomycete endosymbiont in the nitrogen-fixing nodules on the roots of Alnus glutinosa].

As has been shown by electron microscopy, the development of the endosymbiont in the nitrogen-fixing nodules of A. glutinosa proceeds either along the known (hyphae leads to vesicles) or less convenient pattern (hyphae leads to sporangia leads to spores). The paper presents more complete information about the structure of layers which separate the endosymbiont from the cytoplasm of host cells and about changes in the structure of the both partners accompanying sporogenesis.

[Population density and the regulation of the accumulation of the adifferentiated variant of Streptomyces roseoflavus].

It has been shown in the course of cultivation in a liquid medium with stirring that the general density of the cell mass is a factor preventing the accumulation of an adifferential mutant variant in the culture of Streptomyces roseoflavus var. roseofungini 1128. The mass of dead cells acts similarly to the living biomass.

[Morphologic and physiologic-biochemical characteristics of Kurthia zopfii].

Comparative studies were made employing thirteen new isolates of Kurthia zopfii and strain ATCC 10538. It was shown that the cell wall of K. zopfii contained lysine, glycine, alanine, leucine, valine, aspartic and glutamic acids, ribose.

[Dynamics of the accumulation of adifferentiated variants in a submerged culture of Streptomyces roseoflavus var. roseofungini].

When Streptomyces roseoflavus var. roseofungini is grown as a submerged culture in a chemically defined medium with stirring, it yields a number of variants in which the capacity to form the aerial mycelium is disturbed. Inoculations of the submerged mycelium of different age into a solid medium give rise to both "tomentose" variants (TV) with the aerial mycelium and "naked" variants (NV) lacking the aerial mycelium.

Conditions for the appearance of adifferentiated nocardioform variants of Streptomyces roseoflavus var. roseofungini.

It was shown that adifferentiated nocardioform variants (NV) of Streptomyces roseoflavus var. roseofungini 1128 may appear in mycelial cell suspensions of submerged actinomycete cultures in water, phosphate buffer, and water with fructose (1%) or glucose (1%), as well as in mycelia of old (10-30 days) cultures on different carbon sources. When sugars, alcohols, or amino acids were added to a medium with fructose, NV formation was inhibited, but not completely suppressed.

[Electron microscopic study of the action of submicroscopic levorin structures on Candida guillermondii].

In the course of preparation of aqueous solutions of the polyene antibiotic levorin, the latter is recovered in the solid phase forming granular submicroscopic structures. If the cells of Candida guilliermondii are treated with submicroscopic granular structures (SMGS) of levorin, the structures are adsorbed on the surface of the yeast cell walls. Some visible changes occur in the ultrastructure of the yeast cells incubated with SMGS of levorin for 5 min: the inner layer of the cell wall becomes loose, the periplasmic space appears, the cytoplasmic membrane becomes thicker, the mitochondria swell, and fragmentation of the mitochondrial cristae takes place.