95 research outputs found
Thermal and luminescent properties of M2Zn(VO3) 4 (M = Rb, Cs)
We have developed processes for the synthesis of the Rb 2Zn(VO3)4 and Cs2Zn(VO 3)4 tetrametavanadates. Rb2Zn(VO 3)4 has been prepared by solid-state reaction (350 C) between presynthesized RbVO3 and ZnV2O6 powders, and Cs2Zn(VO3)4 has been prepared by the Pechini method (sol-gel process). Both metavanadates crystallize in monoclinic symmetry (sp. gr. P21/m). Thermochemical characterization results demonstrate that the vanadates undergo complex transformations during heating to 450 C and subsequent cooling. As a result, the materials are in a nonequilibrium state at room temperature and consist of both the parent double metavanadates and their peritectic decomposition products. We believe that the formation of the structure of the M2Zn(VO3)4 compounds from their melts is a kinetically hindered process. These compounds are structurally stable only at temperatures below 369 (Rb2Zn(VO 3)4) or 420 C (Cs2Zn(VO3) 4). We have measured for the first time the diffuse reflectance and photoluminescence excitation spectra of the two tetrametavanadates in their emission range and their photoluminescence spectra at various excitation wavelengths and determined their chromaticity coordinates. Their X-ray luminescence and scintillation decay characteristics have been determined for the first time under pulsed electron beam excitation. The electron excitation dissipation processes in the cesium and rubidium compounds are shown to be similar. We discuss the origin of the emission bands in the mixed vanadates and their potential application areas. Β© 2013 Pleiades Publishing, Ltd
Extraction and Serological Properties of Mycobacterium Cell Surface and Excreted Proteins
Β© 2017, Springer Science+Business Media, LLC, part of Springer Nature. Modern medicine still faces the task of distinguishing active and latent tuberculosis cases at the early stage of the disease. Serological approaches have their advantages for their use in diagnostics. However, the progress of these approaches is ongoing but further progress is needed to meet the needs for this disease. Here, we extracted Mycobacterium tuberculosis H37Rv proteins from culture medium or from the cell surface and studied their reactivity with anti-M. tuberculosis serum in both ELISA and immunoblots. We found that M. tuberculosis surface proteins, extracted using dimethyl sulfoxide, with molecular weights in the range of 6.5β200Β kDa, showed strong specific reactivity with anti-M. tuberculosis positive serum. While excreted proteins in the molecular weight range of 32β45Β kDa had the highest reactivity. The latter was confirmed serologically when very weak signal was detected from the filtrate fractions compared to stronger activity from the Vivaspin 50Β kDa MWCO retentates. Moreover, Mycobacterium bovis and tuberculosis proteins from the filter retentates had clear specific serum reactivity, which suggests that this approach can be used for differential diagnosis of two infections
Modern pharmacotherapy of chronic periodontitis (literature review)
The purpose of the present study was to review the literature on the efficiency and safety of non-steroidal anti-inflammatory dugs (NSAIDs). The pathogenic mechanisms of action of NSAIDs and both isoforms of cyclooxygenase role in physiological and pathological conditions are considered in the article. Special attention is paid to the unwanted effects of NSAIDs. Data of clinical trials, indicating a low risk of serious side effects in patients receiving meloxicam and ketoprofen are provided.Π¦Π΅Π»ΡΡ Π½Π°ΡΡΠΎΡΡΠ΅ΠΉ ΡΠ°Π±ΠΎΡΡ ΡΠ²ΠΈΠ»ΠΎΡΡ ΠΈΠ·ΡΡΠ΅Π½ΠΈΠ΅ Π΄Π°Π½Π½ΡΡ
ΠΎΡΠ΅ΡΠ΅ΡΡΠ²Π΅Π½Π½ΠΎΠΉ ΠΈ Π·Π°ΡΡΠ±Π΅ΠΆΠ½ΠΎΠΉ Π»ΠΈΡΠ΅ΡΠ°ΡΡΡΡ ΠΎΠ± ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΠΈ Π±Π΅Π·ΠΎΠΏΠ°ΡΠ½ΠΎΡΡΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ Π½Π΅ΡΡΠ΅ΡΠΎΠΈΠ΄Π½ΡΡ
ΠΏΡΠΎΡΠΈΠ²ΠΎΠ²ΠΎΡΠΏΠ°Π»ΠΈΡΠ΅Π»ΡΠ½ΡΡ
ΠΏΡΠ΅ΠΏΠ°ΡΠ°ΡΠΎΠ² (ΠΠΠΠ). Π ΡΡΠ°ΡΡΠ΅ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°ΡΡΡΡ ΠΏΠ°ΡΠΎΠ³Π΅Π½Π΅ΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΌΠ΅Ρ
Π°Π½ΠΈΠ·ΠΌΡ Π΄Π΅ΠΉΡΡΠ²ΠΈΡ ΠΠΠΠ, ΡΠΎΠ»Ρ ΠΎΠ±Π΅ΠΈΡ
ΠΈΠ·ΠΎΡΠΎΡΠΌ ΡΠΈΠΊΠ»ΠΎΠΎΠΊΡΠΈΠ³Π΅Π½Π°Π·Ρ Π² ΡΠΈΠ·ΠΈΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΠ»ΠΎΠ²ΠΈΡΡ
ΠΈ ΠΏΡΠΈ ΠΏΠ°ΡΠΎΠ»ΠΎΠ³ΠΈΠΈ, ΠΎΡΠΎΠ±ΠΎΠ΅ Π²Π½ΠΈΠΌΠ°Π½ΠΈΠ΅ ΡΠ΄Π΅Π»ΡΠ΅ΡΡΡ Π½Π΅ΠΆΠ΅Π»Π°ΡΠ΅Π»ΡΠ½ΡΠΌ Π»Π΅ΠΊΠ°ΡΡΡΠ²Π΅Π½Π½ΡΠΌ ΡΠ΅Π°ΠΊΡΠΈΡΠΌ, ΡΠ²ΡΠ·Π°Π½Π½ΡΡ
Ρ ΠΏΡΠΈΠ΅ΠΌΠΎΠΌ ΠΏΡΠ΅ΠΏΠ°ΡΠ°ΡΠΎΠ² Π³ΡΡΠΏΠΏΡ. ΠΡΠΈΠ²ΠΎΠ΄ΡΡΡΡ Π΄Π°Π½Π½ΡΠ΅ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠΉ, ΡΠ²ΠΈΠ΄Π΅ΡΠ΅Π»ΡΡΡΠ²ΡΡΡΠΈΠ΅ ΠΎ Π½ΠΈΠ·ΠΊΠΎΠΌ ΡΠΈΡΠΊΠ΅ Π²ΠΎΠ·Π½ΠΈΠΊΠ½ΠΎΠ²Π΅Π½ΠΈΡ ΡΠ΅ΡΡΠ΅Π·Π½ΡΡ
ΠΏΠΎΠ±ΠΎΡΠ½ΡΡ
ΡΡΡΠ΅ΠΊΡΠΎΠ² Π½Π° ΡΠΎΠ½Π΅ ΠΏΡΠΈΠ΅ΠΌΠ° ΠΌΠ΅Π»ΠΎΠΊΡΠΈΠΊΠ°ΠΌΠ° ΠΈ ΠΊΠ΅ΡΠΎΠ»ΡΠΎΡΠ΅Π½Π°
Changes in the urban population in the republic of the volga federal district of Russia
Β© Medwell Journals, 2016.The study considers the the dynamics of the urban population in the republics of the Volga Federal District (VFD) Russia: Bashkortostan, Mari El, Mordovia, Tatarstan, Udmurtia, Chuvashia from 1990-2013. The main factors affecting to the changing in the urban population in these republics: decline in industrial production; internal and external migration; deterioration of the socio-economic conditions of the population, especially in small cities and towns associated with unemployment; aggravation of environmental problems in large cities and others. Of the 6 republics of the VFD the positive dynamics of the urban population is observed only in the Republic of Tatarstan to 197 thous. people from 1990-2012. And in the other republics of VFD there are negative indicators of the dynamics of the urban population
Clinical efficiency of meloxicam in patients with exacerbation of chronic periodontitis
The purpose of the present study was to assess the clinical efficiency of non-steroidal anti-inflammatory drug meloxicam in patients with exacerbation of chronic periodontitis. 80 patients with chronic periodontitis were separated into 3 groups. Patients of the first group served as a control and received traditional periodontal therapy. Patients of the second and the third groups were administered adjunctive meloxicam 7.5 mg orally for 7 and 14 days, respectively, after initial periodontal treatment. Periodontal tissues condition was evaluated using indexes: OHI-S, PI and PMA. It was shown that 14-day use of meloxicam in the complex treatment of patients with chronic periodontitis has advantages over traditional periodontal therapy, which clinically manifests itself in a more pronounced anti-inflammatory effect on the index of the PMA, as well as the reduction of the depth of periodontal pockets.Π¦Π΅Π»Ρ Π΄Π°Π½Π½ΠΎΠ³ΠΎ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Π·Π°ΠΊΠ»ΡΡΠ°Π»Π°ΡΡ Π² ΠΈΠ·ΡΡΠ΅Π½ΠΈΠΈ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡΡΠ΅ΠΊΡΠΈΠ²Π½ΠΎΡΡΠΈ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΡ Π½Π΅ΡΡΠ΅ΡΠΎΠΈΠ΄Π½ΠΎΠ³ΠΎ ΠΏΡΠΎΡΠΈΠ²ΠΎΠ²ΠΎΡΠΏΠ°Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΏΡΠ΅ΠΏΠ°ΡΠ°ΡΠ°- ΠΌΠ΅Π»ΠΎΠΊΡΠΈΠΊΠ°ΠΌ Π² ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΠΎΠΉ ΡΠ΅ΡΠ°ΠΏΠΈΠΈ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Ρ Π₯ΠΠ Π»Π΅Π³ΠΊΠΎΠΉ ΠΈ ΡΡΠ΅Π΄Π½Π΅ΠΉ ΡΡΠ΅ΠΏΠ΅Π½Π΅ΠΉ ΡΡΠΆΠ΅ΡΡΠΈ Π² ΡΡΠ°Π΄ΠΈΠΈ ΠΎΠ±ΠΎΡΡΡΠ΅Π½ΠΈΡ. 80 ΡΠ΅Π»ΠΎΠ²Π΅ΠΊ Ρ Ρ
ΡΠΎΠ½ΠΈΡΠ΅ΡΠΊΠΈΠΌ ΠΏΠ°ΡΠΎΠ΄ΠΎΠ½ΡΠΈΡΠΎΠΌ Π±ΡΠ»ΠΈ ΡΠ°Π·Π΄Π΅Π»Π΅Π½Ρ Π½Π° 3 Π³ΡΡΠΏΠΏΡ. Π£ΡΠ°ΡΡΠ½ΠΈΠΊΠΈ 1-ΠΉ Π³ΡΡΠΏΠΏΡ ΠΏΠΎΠ»ΡΡΠ°Π»ΠΈ ΡΡΠ°Π΄ΠΈΡΠΈΠΎΠ½Π½ΡΡ ΠΏΠ°ΡΠΎΠ΄ΠΎΠ½ΡΠ°Π»ΡΠ½ΡΡ ΡΠ΅ΡΠ°ΠΏΠΈΡ. ΠΠΎ 2-ΠΉ ΠΈ 3-ΠΉ Π³ΡΡΠΏΠΏΠ°Ρ
Ρ ΠΌΠΎΠΌΠ΅Π½ΡΠ° Π΅Π΅ Π½Π°ΡΠ°Π»Π° ΠΏΠ°ΡΠΈΠ΅Π½ΡΡ ΠΏΡΠΈΠ½ΠΈΠΌΠ°Π»ΠΈ ΠΌΠ΅Π»ΠΎΠΊΡΠΈΠΊΠ°ΠΌ ΠΏΠΎ 7,5 ΠΌΠ³ ΠΏΠ΅ΡΠΎΡΠ°Π»ΡΠ½ΠΎ Π² ΡΠ΅ΡΠ΅Π½ΠΈΠ΅ 7 ΠΈ 14 Π΄Π½Π΅ΠΉ ΡΠΎΠΎΡΠ²Π΅ΡΡΡΠ²Π΅Π½Π½ΠΎ. Π‘ΠΎΡΡΠΎΡΠ½ΠΈΠ΅ ΡΠΊΠ°Π½Π΅ΠΉ ΠΏΠ°ΡΠΎΠ΄ΠΎΠ½ΡΠ° ΠΎΡΠ΅Π½ΠΈΠ²Π°Π»ΠΈ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΠΈΠ½Π΄Π΅ΠΊΡΠΎΠ²: Π³ΠΈΠ³ΠΈΠ΅Π½ΠΈΡΠ΅ΡΠΊΠΎΠ³ΠΎ (0HI-S), ΠΏΠ°ΡΠΎΠ΄ΠΎΠ½ΡΠ°Π»ΡΠ½ΠΎΠ³ΠΎ (PI) ΠΈ ΠΏΠ°ΠΏΠΏΠΈΠ»ΡΡΠ½ΠΎ-ΠΌΠ°ΡΠ³ΠΈΠ½Π°Π»ΡΠ½ΠΎ-Π°Π»ΡΠ²Π΅ΠΎΠ»ΡΡΠ½ΠΎΠ³ΠΎ (Π ΠΠ). ΠΡΠ»ΠΎ ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ 14-ΡΠΈ Π΄Π½Π΅Π²Π½ΠΎΠ΅ ΠΏΡΠΈΠΌΠ΅Π½Π΅Π½ΠΈΠ΅ ΠΌΠ΅Π»ΠΎΠΊΡΠΈΠΊΠ°ΠΌΠ° Π² ΠΊΠΎΠΌΠΏΠ»Π΅ΠΊΡΠ½ΠΎΠΌ Π»Π΅ΡΠ΅Π½ΠΈΠΈ ΠΏΠ°ΡΠΈΠ΅Π½ΡΠΎΠ² Ρ Π₯ΠΠ ΠΈΠΌΠ΅Π΅Ρ ΠΏΡΠ΅ΠΈΠΌΡΡΠ΅ΡΡΠ²Π° ΠΏΠ΅ΡΠ΅Π΄ ΡΡΠ°Π΄ΠΈΡΠΈΠΎΠ½Π½ΠΎΠΉ ΠΏΠ°ΡΠΎΠ΄ΠΎΠ½ΡΠ°Π»ΡΠ½ΠΎΠΉ ΡΠ΅ΡΠ°ΠΏΠΈΠ΅ΠΉ, ΡΡΠΎ ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈ ΠΏΡΠΎΡΠ²Π»ΡΠ΅ΡΡΡ Π² Π±ΠΎΠ»Π΅Π΅ Π²ΡΡΠ°ΠΆΠ΅Π½Π½ΠΎΠΌ ΠΏΡΠΎΡΠΈΠ²ΠΎΠ²ΠΎΡΠΏΠ°Π»ΠΈΡΠ΅Π»ΡΠ½ΠΎΠΌ ΡΡΡΠ΅ΠΊΡΠ΅ ΠΏΠΎ ΠΈΠ½Π΄Π΅ΠΊΡΡ Π ΠΠ, Π° ΡΠ°ΠΊΠΆΠ΅ Π² Π²ΠΈΠ΄Π΅ ΡΠ΅Π΄ΡΠΊΡΠΈΠΈ Π³Π»ΡΠ±ΠΈΠ½Ρ ΠΏΠ°ΡΠΎΠ΄ΠΎΠ½ΡΠ°Π»ΡΠ½ΡΡ
ΠΊΠ°ΡΠΌΠ°Π½ΠΎΠ²
Mathematic simulation of high-efficiency process of grain cleaning
Β© Published under licence by IOP Publishing Ltd. The article presents the results of field experiment and the results of computer simulation of the grain cleaning process pneumosorting machine PSM-0,5. The results of the comparison of two methods of research are presented
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