List of publications on a keyword: «concentration»

The article discusses the main closed-loop life support systems on the example of systems installed on submarines and spacecrafts, as well as systems implemented in insulating breathing apparatus.

The rectal way can be used to produce both local and systemic effect. When rectally administered medications are entered through nijneangarsk of the mucous membrane of the rectum, where the rectal venous (internal hemorrhoidal) plexus. The bioavailability with this route of administration is quite high, due to the abundant blood supply of the rectum, structure of the veins of this region, the so-called glomeruli or cavernous bodies, position them around the diameter, the presence of anastomoses between the cavernous bodies, the outflow of venous blood bypassing the liver that increases the rate of achievement of maximum concentration of LP in the blood. The advantages of this method are: the rapid development of therapeutic effect (5-15 min), high rate of absorption of LV, comparable to intramuscular way of introduction, the absence of irritating action of medicinal substances on the gastric mucosa, the possibility of application in psychiatric practice, patients in an unconscious state, in Pediatrics and geriatrics. The limited introduction of drugs with a complex structure, due to the lack of enzymes in the rectum, the small size of the suction surface and the short contact time of the drug with the mucosa are the main disadvantages of this method.

Inconsistency quality chemical composition of natural waters of the lower limits of biologically relevant concentrations. Effect of excess and shortage of some components on the life of the organism.

The article is devoted to the problem of the influence of the mass consciousness perception under war conditions on the historical sources accuracy. In particular it deals with the investigative materials on the facts of detainees’ death in fasist prison camps in ports of Danzig and Gdynia on the eve of their liberation by the Red Army in March-June, 1945. The author came to the conclusion that although war prisoners’ testimony requires close attention from the point of view of reliability of their separate events perception, still it remains as a precious source of social history of World War II.

The article is devoted to the development of a fishpond ecosystem’s conceptual model and its quality stability verification. The choice of variables in the model is made according to the selection of fish species, goals and objectives of the research.

Article reflects a question of development of attention urgent today in the senior preschool children. In article pedagogical conditions for successful development of properties of attention of the senior preschool children are briefly described and the example of the educational and thematic plan of the program for correction of violation of properties of attention of preschool children is given.

Article reflects a question of development of attention urgent today in the senior preschool children. In article psychology and pedagogical literature on the matter is briefly analysed. Main types of attention of the senior preschool children, features of its development are considered, recommendations about the organization of teaching and educational work are made.