[Dietetic canned food using ocean fish and plant components].

The results of the creating canned ground goods of a new kind are described in this article. The main character references of food value of hake and the canned ground foods based on it. It has been established that the new products of safety.

[Gas-exchange intensity in Daphnia in water polluted by different copper salts].

Studies have been made on the survival rate and oxygen consumption in Daphnia kept in solutions of four copper salts. The significance of anionic groups in total toxicity of the salts was demonstrated. Mechanisms of their action are discussed.

[The characteristics of the action on hydrobionts of the insecticide Valexon].

The effect of organophosphorus insecticide, valexon, has been investigated on hydrobionts from different taxonomic groups. Survival, locomotor activity, oxygen consumption and free radical spectra were determined. High sensitivity to the effect of the insecticide was found in Daphnia, due to the specific action of it on locomotor and respiratory functions, which are closely related in crustaceans.

[Hygienic aspects of Atlantic fish products utilization in the production of infant food].

The data on toxic element and parasitic contamination of the fish from the Atlantic Ocean have been systematized. Basing on the criteria of safety involving MAC for heavy metals, pesticides, histamine, radionuclides, absence of parasitic contamination, recommendations have been formulated on the conditions under which raw fish is ecologically permissible for production of canned food for children.

[Experimental and clinical data on the ability of bemetil to penetrate the hemato-encephalic barrier].

Experimental and clinical data indicated bemetil ability to penetrate through the blood-brain barrier. Bemetil concentration in the rat brain tissue was found to be significantly higher than in the plasma. Its concentration in the cerebrospinal fluid of patients with craniocerebral trauma was lower than in the plasma; the latter however does not exclude the possibility of bemetil accumulation in the brain structures.

[Features of the receptors of the alar system of locusts which have lost their ability to fly].

Using two species of locusts, Romalia microptera Beavy and Podisma pedestris L., receptors of the wing apparatus are described: campaniform sensillas of the wing, hair receptors of the tegula, chordotonal organ and thorax stretch receptor. A comparative analysis of the receptors mentioned with the homologous sensitive organs, participating in the control of wing movements, is performed in well flying species (Locusta migratoria migratorioides and Schistocerca gregaria).

[Type II neurons in the trunk of the cockroach Periplaneta americana].

Staining the nervous system by methylene blue, studies have been made on the topography and structure of type II neurones in the trunk of the cockroach. Small quantity of cells innervating various tissues was found together with 3 varieties of neurones, located near the nervous trunks, as well as 4 pairs of the abdominal stretch receptors (one pair of unicellular and one pair of bicellular receptors in tergites and sternites).

[Immunological precursors of influenza epidemics].

The authors studied the immuno-epidemiological manifestations of ciculation and variability of the influenza virus during the periods preceding the officiallly recorded rise of the incidence of this disease. The following epidemic precursors were revealed: a) an increase of the number of persons who fell sick with subclinical form of the disease, accompanied by a rise in the population of the antibody level to the type of influenza virus whose latest variant later caused an epidemic morbidity elevation; b) a progressive predominance of the causative agent of the developing epidemic in the etiology of influenza; c) a growth of the collective immunity indices from the "minimal" to the "critical" levels; d) an increase of the sero-conversion multiplicity and of the antibody level in those who sustained the disease during the epidemic development. These precursors could be revealed at the period of from 1 1/2 to 6 months before the beginning of the morbidity growth caused by viruses of endogenous or of exogenous origin.

[Wing receptors of the American cockroach Periplaneta americana].

Wing receptors of the cockroach have been studied using staining technique with methylene blue in living animals. Five types of the receptors were found: trychoid hairs, bristles, complaniform sensillae, chordotonal organs and multiterminal neurons. The majority of the receptors is located at the lower surface of the wing, especially along its ribs.