Integration or regionalization: regional industrial specialization in Russia

The article is devoted to the trends and determinants of the transformation of Russian regions' industrial specialization during the period of economic growth. Using the methodology of statistic and econometric analysis it is tested whether the tendency of diversification dominates the tendency of regions’ industrial specialization in 1997-2004 and whether there is a convergence of Russian regions' industrial structures. The considered factors of industries' development in a particular location include the initial industrial structure, inter- and intraregional technologic links between industries, quality of investment climate, R&D potential, international competition

Data on granulometric composition of calcium phosphate obtained by dispersion method

The kinetics of calcium phosphate crystallization from model solutions of saliva and liquid phase of dental plaque has been studied by the dispersion method. It was found that the composition of the saliva model system is favorable for the growth of larger crystals. The size of the particles in crystallization varies nonlinearly. As supersaturation grows, the amount of formed particles increases, however, the average rate of crystallite growth decreases

Study of thermal effects of silicate-containing hydroxyapatites

The possibility of modifications of hydroxyapatite silicate ions, from the extracellular fluid prototype solution under near-physiological conditions has been studied. Formation of silicon-structured hydroxyapatite with different extent of substitution of phosphate groups in the silicate group has been established through chemical and X-ray diffraction analyses, FTIR spectroscopy and optical microscopy. The results obtained are in agreement and suggest the possibility of substitution of phosphate groups for silicate groups in the hydroxyapatite structure when introducing different sources of silica, tetraethoxysilane and sodium silicate, in the reaction mixture. Growth in the amount of silicon in Si-HA results in the increase in the thermal stability of the samples. The greatest mass loss occurs at temperatures in the range of 25-400 °С that is caused by the removal of the crystallization and adsorption water and volatile impurities. It is shown that the modified apatites are of imperfect structure and crystallize in a nanocrystalline state

Data on granulometric composition of calcium phosphate obtained by dispersion method

The kinetics of calcium phosphate crystallization from model solutions of saliva and liquid phase of dental plaque has been studied by the dispersion method. It was found that the composition of the saliva model system is favorable for the growth of larger crystals. The size of the particles in crystallization varies nonlinearly. As supersaturation grows, the amount of formed particles increases, however, the average rate of crystallite growth decreases

Thermal stability of brushite with chitosan samples

In this paper, the powders of brushite from an aqueous solution of Ca(NO[3])[2]- (NH[4])[2]HPO[4] with different content of chitosan were synthesized. XRD data revealed that all samples are single-phase and are brushite (CaHPO[4]•centerdot2H[2]O). By FT-IR spectroscopy and BET methods, it was found that chitosan adsorbs onto the surface of powders. With increase of the content of the additive, the average size of crystallites increases 4.0 – 4.8 – 11.8 [mu]m, respectively, and the dissolution rate in isotonic solution also decreases. The thermal stability of the composite powders was studied. It was established that the highest destruction of samples occurs in the range 473-673 K by removing of adsorption and crystallization water and partial change of the structure of the mineral and chitosan. At a temperature of 873 K, carbonization of the organic additive occurs

Effect of cations (Mg2+, Zn2+, Cd2+) on formation of the mineral phase in Ca(NO3)2-Mg(NO3)2-Na2HPO4-H2O system

Synthesis of hydroxyapatite in the system Ca(NO3)2-Me(NO3)2-NaHPO4-H2O with pH in the range of 6-12.2 is performed, and hydroxyapatite of B-type is formed. The effect of magnesium, zinc and cadmium ions on the properties of hydroxyapatite is studied. It is shown that as the concentration of these ions increases, the crystallinity of hydroxyapatite and the Ca/P ratio decreases. It is found that in all the experiments Zn2+ cations affect the hydroxyapatite structure to a lesser extent which results in less structural defects, wherein the Ca/P ratio attains the highest values. It is shown that the solubility of the samples containing zinc ions is greater than that of the samples with other additives

Effect of cations (Mg2+, Zn2+, Cd2+) on formation of the mineral phase in Ca(NO3)2-Mg(NO3)2-Na2HPO4-H2O system

Synthesis of hydroxyapatite in the system Ca(NO3)2-Me(NO3)2-NaHPO4-H2O with pH in the range of 6-12.2 is performed, and hydroxyapatite of B-type is formed. The effect of magnesium, zinc and cadmium ions on the properties of hydroxyapatite is studied. It is shown that as the concentration of these ions increases, the crystallinity of hydroxyapatite and the Ca/P ratio decreases. It is found that in all the experiments Zn2+ cations affect the hydroxyapatite structure to a lesser extent which results in less structural defects, wherein the Ca/P ratio attains the highest values. It is shown that the solubility of the samples containing zinc ions is greater than that of the samples with other additives

Сучасні проблеми профілактики хвороб системи кровообігу на первинному рівні

According to the WHO experts (2015) a serious manifestation of new challenges to public health in the world is cardiovascular diseases. All structural changes in the Poltava region are aimed at intensive introduction of the primary care to the population based on the general practice – family medicine. In the Poltava region there is an increase of the manning level with the primary care doctors. The optimal level of time spent per a patient should be 16.44 ± 1.15 min (according to thephysicians’ opinion) or 16.93 ± 0.78 min (according to the timing of the doctor’s visit). The main way of obtaining the information on risk factors of cardiovascular diseases for patients is the media (47%) rather than a doctor.По заключению экспертов ВОЗ (2015), серьезным проявлением новых вызовов для общественного здоровья в мире являются болезни системы кровообращения. Все структурные изменения в Полтавской области направлены на интенсивное внедрение первичной медико-санитарной помощи на принципах общей практики – семейной медицины. В Полтавской области наблюдается увеличение уровня укомплектованности врачами первичного звена. Оптимальным временем, которое затрачивается на одного пациента, должно быть 16,44 ± 1,15 мин (по опросам врачей) или 16,93 ± 0,78 мин (по проведенному хронометражу приема врача). Главным путем получения информации о факторах риска болезней системы кровообращения для пациентов являются средства массовой информации (47%), а не врач.За висновками експертів ВООЗ (2015), серйозним проявом нових викликів для громадського здоров’я у світі є хвороби системи кровообігу. Всі структурні зміни в Полтавській області спрямовані на наближення медичної допомоги до населення, інтенсивне упровадження первинної медико-санітарної допомоги на засадах загальної практики – сімейної медицини. У Полтавській області спостерігається збільшення рівня укомплектованості лікарями первинної ланки. Оптимальним часом, витраченим на одного пацієнта, мають бути 16,44 ± 1,15 хв (згідно з опитуваннями лікарів) або 16,93 ± 0,78 хв (згідно з проведеним хронометражем прийому лікаря). Головним шляхом отримання інформації щодо факторів ризику хвороб системи кровообігу пацієнтів є засоби масової інформації (47%), а не лікар