The technique of revealing of structural condition changes of plastic materials during suddenly changes in loading mode

Розроблено інженерну методику виявлення змін структурного стану пластичних матеріалів у процесі раптових змін в режимі навантаження, яка дозволяє оцінювати не лише якісно, але і кількісно деякі фізичні параметри, які характеризують структурний стан матеріалів. Крім того, методика дозволяє фіксувати значення пластичної деформації, за якої відбуваються істотні структурні зміни.The engineering technique of revealing of a structural condition changes of plastic materials during suddenly changes in a loading mode is developed, which allows to estimate not only qualitatively but and quantitatively some physical parameters which characterize the structural condition of materials. Besides the technique allows to settle value of plastic deformation at which it is realized essential structural changes

Some New Reactions and Properties of Xanthane Hydride (5-Amino-1,2,4-dithiazole-3-thione)

Aminomethylation of xanthane hydride (5-amino-1,2,4-dithiazole-3-thione) with the RNH2–HCHO system has resulted in the formation of the derivatives of new heterocyclic system (3,7-dihydro-5H-[1,2,4]-dithiazolo[4,3-a][1,3,5]triazine) in low yields. The reaction of xanthane hydride with dicyandiamide has led to thioammeline [4,6-diamino-1,3,5-triazine-2(5Н)-thione]. Some practically important properties of xanthane hydride and its derivatives have been investigated. Xanthane hydride has efficiently exhibited carbon steel corrosion in neutral aqueous media. The prepared compounds have not exhibited growth-regulating or antidote activity to herbicide 2,4-D

Analysis of Ebola virus Zaire 2014 isolates

Analysis of 5 Ebola virus Zaire 2014 isolates passaged in cell cultures or in mice, demonstrated presence of unique mutations in the genome RNA in some cases. All identified nucleotide substitutions are singular, stochastically located, synonymous or fall within non-coding regions. Variability level of nucleotide sequences is equal to 0.005-0.01 %, suggesting extremely high genetic stability of Ebola virus Zaire, the causative agent of the outbreak. Confirmed is suppression of non-synonymous mutations accumulation in ebolavirus variants in the course of time. Detected are alterations in glycosilation sites and mucin-like domain of ebolavirus glycoprotein