Vol. 39 No. 3 (208) (2005)

For obtaining glues on the basis of epoxide gums, which are widely used in various fields (for example, for gluing metallic and plastic compounds) complex systems composed from epoxide gums, metal-aminocompounds and hydroperoxides and metall salts for condensation gums, cumene hydroperoxide and aminoalcohols have been investigated. Probable mechanism of glue condensation polymerisation process, physical and chemical data of these glues are given.

Interaction of levomicytine anion with okcin raw pironine «B» has been studied. Compound forming in the system is extracted by dichloretane–carbon tetrachloride (7+3 mL) binary mixture. Maximal light absorbanse (extinction) for extracts forming compound as well as for «blind» extracts is observed at 535 nm wavelength. At the optimal acidity conditions (pH 5.8 by HCl) levomicytine is extracted almost quantitatively (R=95%) to the organic solvent phase by means of single extraction during 1 minutes shaking. The range of determined concentration of levomicytine is 12.5–175 mkg/10 mL. The molar coefficient of extinction is ε₅₃₅ = 5.07·10⁴ L·mol^–1·cm^–1 The method was used for determination of small amounts of levomicytine.

An interaction of iron(III) chloride anionic complex with threephenylmethane basic dye-fuchsine has been studied. The colored ionic associate could be extracted by dichlorethane (R=0.965) in 6.0–7.0 N hydrochloric acid solutions. The extracts of ionic associate are submitted to be main law of spectrophotometer in the Q.25–6.0 mcg/mL range of iron(III) contents, ε=7.3·10⁴ ± 400 (L·mol^–1·cm^–1). The molar ratio between iron(III) chloride complex and fuchsine in ionic associate has been determined by method of Asmuse, which (1:1). The influence of interfering elements on the determination of iron has been studied. Method elaborated has been applied for determination of iron in mineral water «Jermuk» and waste waters .

An efficient method for synthesis of new modified chiral auxiliary (S)-N-(2-benzoylphenyl)-1-(2-chlorbenzyl)pyrrolidine-2-carboxamide ((S)-2-CBPB) and it's chiral Ni²⁺ complexes of Setoff's base of (E)- and (Z)-dehydroaminobutyric acids has been elaborated. The synthesized complexes were isolated and characterized by physicochemical methods of analysis.

The quantity of free prolin in radiated beetles which are kept for 48 hours in cold conditions increases in comparison with non-radiated beetles, but it remains on the same level as in the radiated beetles kept in warm conditions for 48 hours. The activity of the enzymes of prolin biosynthesis increases 4.5 times, because of the X-rays and cold conditions, in comparison with beetles only radiated, but it does not change in no-radiated beetles. The activity of the enzymes of prolin catabolism increases 1.2 times. Ripe larvae are originated from the radiated eggs, the enzymes of prolin biosynthesis and catabolism fails 2 times.

Dynamics of psychophysiological and cardiogemodinamical indexes of students under affecting of an annual educational loading is studied. It is shown that for students the overstrained of physiological systems of organism is the beginning of academic year and examination period. During the academic year we have noticed that there is decrease in all indexes learnt before which is the result of daily, monthly and annual loading comparison.

Using the method of volitional optimal decrease of minute volume of breathing leads to activation of organism’s protective mechanisms. This method was used in the groups of curative physical training. It was revealed that this method is very effective for the increase of mental and physical work ability of students with pathological background of different physiological functions.

The results of research of dynamic changes in a number of cortical zones activity at the students with different creativity parameters, during composing a story on the base of the presented words from different semantic fields are submitted. The intergroup difference in dynamic changes of level cortex activity in the examinees with different level of creative abilities was found out, that testifies the presence of various mechanisms of creative process maintenance.

Using the 02 clone of Tradescantia the frequency of emergence of somatic recessive mutations in stamen hair and micronucleus in tetrads was revealed in soils taken from dwelling areas of Metsamor, Aghavnatun, Armavir, Oshakan, Mrgashat and Ajgeshat villages. The investigations of water extract of grey and black soils was revealed, that heterogeneity of genetic changes depends on the types of soils and the research areas.

In the article information concerning the parasitic fungi, which were found in the cultivated and wild species of clover in Armenia and diseases arisen from them is introduced. The species of clover, which are stable for fungi diseases, have been also noted.

The reaction of interaction Na of salt 1,3-dicarboxymethylizocyanurat with chloride of metals accordingly have been explored. The structure and construction of synthesized complexes were investigated by YR-, NMR-spectrum methods and elements analysis.

In this paper the dispersion of reaction rate of immobilized enzymes during enzyme inhibitor concurrent binding was calculated. It is shown that in substrate small concentration the dispersion grows linearly with increasing of that concentration, and when the number of substrates is huge the dispersion is decreasing. It’s also shown that the presence of inhibitor doesn’t affect on maximal dispersion value in comparison with the case when there is no inhibitors. Inhibitor moves the maximum coordinate to the side of big concentration.

The effect of aminoacids was studied on the level of protein amid groups during incubation of rat liver homogenates. It has been established that ammonia and urea formed on incubation is not due to deamination of proteins. Only some inter change was shown between readily hydrolysable and hardly hydrolysable protein amid groups.