Tetyana Konstantinova

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Tobacco (Nicotiana tabacum L.) has been transformed to accumulate different compatible solutes (proline, fructans, or glycine betaine) in order to improve its tolerance to abiotic stress. Photosynthetic activity of wild Type (wt) and transformed tobacco plants before and after freezing stress was studied by measuring chlorophyll (Chl) fluorescence. The JIP(More)
The present paper is devoted to the problem of sintering ceramics based on yttria-stabilized zirconia (Y-TZP). In this paper, we studied the effect of two obtaining methods (co-precipitation and technical hydrolysis) on sintering kinetics of Y-TZP nanopowders. We used the constant rate of heating (CRH) method at different heating rates for determining the(More)
The recent development of ultrafast imaging and diffraction opened a new frontier for studying structural dynamics at nanoscales. It has become one of the key directions for future electron microscopy. Ultrafast electron microscopy combines the superior spatial resolution of conventional electron microscope with short electron pulses enabling the detection(More)
Esomeprazole is efficient for acid-dependent diseases of the gastrointestinal tract in patients with chronic hepatitis and hepatic cirrhosis as it can reduce the disease symptoms and cause the epithelization of erosive and ulcerative defects of the mucous coat. The terms of the cicatrisation of erosive and ulcerative defects of the mucous coat of the(More)
Two hundred and sixty eight microbial strains were tested for their antibiotic susceptibility. Azithromycin (sumamed) was shown to have an efficient inhibitory action on pneumococci, streptococci and hemophilic bacilli. Doxycycline and gentamicin were not sufficiently active against gram-positive cocci, the same as trimethoprime/sulfamethoxazole which was(More)
It was shown that Ag(or Ag2O)-ZrO2-Y2O3 formation occurs due to the complex process of decomposition and structure transformation of oxide materials and Ag-complexes. Differences in the decomposition temperatures of Ag-complexes, in particular, and their melting temperatures, and the transformation of ZrO2-Y2O3 NPs morphology leads to the creation of(More)
In the present paper the sintering behavior of 3 mol% yttria-stabilized zirconia (3Y-TZP) with and without small amount (0.2 wt %) of SiO2 additive was investigated. It has been studied the silica impact which was added in two ways (co-precipitation and mechanical mixing) on sintering kinetics of 3Y-TZP nanopowders at the initial sintering stage. It was(More)
Step-by-step therapy of patients with pneumonia and exacerbated chronic bronchitis with amoxyclav (amoxycillin/potassium clavulanate) in a dose of 1.2 g administered intravenously dropwise every 8 hours for the first 2 days of the treatment with subsequent oral use of the drug in a dose of 625 mg thrice a day for 5 days proved to be highly efficient. The(More)
Ceftriaxone, cephalosporin of the third generation, was given to 40 adults admitted to hospital for bronchopulmonary infections. Pneumonia and aggravation of chronic bronchitis were diagnosed in 27 and 13 patients, respectively. The drug was given in a single daily dose 1-2 g intravenously or intramuscularly. Mean duration of the treatment course was 6.13(More)