Cognitive and Simulation Modeling of Regional Economic System Development

Sustainable development of regional economy is the declared as a strategic objective of the state. From these positions, studying of the regional socio-economic phenomena and processes, development of the corresponding research and managerial tools are actual tasks. Authors consider the regional economy as a complex hierarchical system. This requires identification of its state, structure, particularities in its development and governance. These factors are investigated using the means of simulation modeling. Authors suggest to use the developed cognitive and simulation modeling methodology, which is based on cognitive approach, the theory of hierarchical multilevel structures, fixed and fuzzy directed graphs. The study illustrates possibilities of cognitive-simulation modeling and foresight of the socio-economic system development at the regional level. Keywords: simulation modeling, regional development, sustainable development JEL Classifications: C63, R5

Neurogenic dysfunction of the lower urinary tract in infectious and inflammatory diseases of the spine: is there a correlation with clinical and radiological variants of myelopathy? Preliminary result of the analysis of a single-center cohort

Objective. To study the relationship between clinical and radiation variants of myelopathy and types of the neurogenic dysfunction of the lower urinary tract in patients with infectious spondylitis. Material and Methods. A single-center cohort observational study was conducted with the analysis of medical records and a prospective examination of 20 patients with infectious spondylitis complicated by neurogenic dysfunction of the lower urinary tract. Results. Infectious spondylitis can be complicated by the development of various urodynamic disorders, including neurogenic detrusor hyperactivity (30 %), its combination with detrusor-sphincter dissinergia (30 %) and a decrease in detrusor contractility (40 %). In 50 % of patients, an urodynamic examination revealed an increase in detrusor pressure of more than 40 cm water. There was no connection between the development of any type of lower urinary tract dysfunction and MRI types of myelopathy according to Vendatam, as well as between the level of spinal cord compression and the severity of neurological disorders according to AIS. Conclusion. The results of the study do not confirm the existence of a relationship between the various characteristics of myelopathy in infectious spondylitis and the results of urodynamic examination. The limitation of the reliability of the results is the small number of observations. Studies with a larger sample are required to assess the relationship between the clinical and radiation characteristics of myelopathy and variants of neurogenic dysfunction of the lower urinary tract in patients with infectious spondylitis

ПРОЕКТИРОВАНИЕ СТРАТЕГИЙ СОЦИАЛЬНО-ЭКОНОМИЧЕСКОГО РАЗВИТИЯ МУНИЦИПАЛЬНЫХ РАЙОНОВ НА ОСНОВЕ СИНТЕЗА МЕТОДОВ ИССЛЕДОВАНИЯ СЛОЖНЫХ СИСТЕМ

The article presents the results of research work on designing the strategies for socio-economic development for the Sholokhovskiy municipal district of Rostov region and Chusovskoy municipal district of Perm Region, which was made by research team of autonomous nonprofit organization of higher education «Eurasian Open Institute» (EOI) during the 2012-2013.В статье представлены результаты научно-исследовательской работы по разработке стратегий социально-экономического развития ряда муниципальных образований Российской Федерации, выполненной научным коллективом Автономной некоммерческой организации высшего профессионального образования «Евразийский открытый институт» (ЕАОИ) в 2012-2013 гг

Pentacoordinated silicon in the high-pressure modification of datolite, CaBSiO4(OH)\mathrm{CaBSiO_{4}(OH)}

A new modification of borosilicate datolite, CaBSiO$_4$(OH), has been discovered using synchrotron-based in situ high-pressure single-crystal X-ray diffraction. The phase transition from low (I) to high (II) pressure modification is isosymmetric and occurs between 27 and 33 GPa. The crystal structure of datolite-II contains pentacoordinated Si atoms forming SiO$_5$ triangular bipyramids that share edges to form Si2O$_8$ dimers. The dimers are linked through BO$_4$ tetrahedra, resulting in the [B(SiO$_4$)OH]$^{2−}$ layers of a novel topology that has not previously been observed in inorganic compounds. Datolite-II is only the second inorganic structure that contains Si in purely fivefold coordination. The results obtained shed new light on the high-pressure behaviour of silicates and demonstrate that cold compression can be considered as a low-energy pathway to metastable structures, which might possess unusual and unexpected coordination geometries and topologies

Rhizospheric microbiomes of

Comparative study was made of the rhizospheree microbiomes of two cultivars of sorghum (Sorghum bicolor cvs. Sucro 506 and Biomass 133) grown on soils with anthropogenic polyelement anomalies and on a background (control) soil. The study used traditional culture-based and culture-independent metagenomic approaches. In soils contaminated with heavy metals, we found decreased numbers of culturable bacteria and quantitative changes in the populations of actinomycetes and micromycetes. The relative abundance of the families whose members were able to resist heavy metals was found to increase in the rhizospheric communities. The taxonomic profile of the microbial communities at the phylum level did not differ significantly between cultivars. The Shannon diversity and the abundance of actinomycete families in the rhizosphere of cv. Biomass 133were greater than those for cv. Sucro 506. Significant differences were found between cultivars for the number of rhizospheric microorganisms resistant to heavy metals

Compressibility of hingganite-(Y): high-pressure single crystal X-ray diffraction study

Behaviour of hingganite-(Y), Y$_2\square$Be$_2$Si$_2$O$_8$(OH)$_2$, on compression to 47 GPa has been studied by synchrotron-based in situ high-pressure single-crystal X-ray diffraction at room temperature in a diamond anvil cell. In the studied pressure range no obvious phase transitions have been observed. The compression of hingganite-(Y) crystal structure is anisotropic, with b axis showing the maximal compressibility. A fit of the experimental pressure–volume data by the Birch-Murnaghan third-order equation of state yielded the bulk modulus of 131(2) GPa and its pressure first derivative of 3.5(2). The difference between high-pressure behaviour of hingganite-(Y) and structurally related datolite is governed by the different chemical nature of interlayer cations

Pressure-Induced Phase Transitions in Danburite-Type Borosilicates

The high-pressure behaviors of two isotypic borosilicates (maleevite, BaB2Si2O8, and pekovite, SrB2Si2O8) have been studied using in situ single-crystal X-ray diffraction and Raman spectroscopy. Maleevite undergoes one reconstructive phase transition between 36 and 38 GPa with the formation of a triclinic phase, maleevite-II, featuring octahedrally coordinated silicon. In contrast, pekovite undergoes two phase transitions: first, an isosymmetric order–disorder phase transition to pekovite-II (between 18 and 23 GPa) and then a reconstructive phase transition with the formation of triclinic pekovite-III (between 29 and 33 GPa). The structure of pekovite-II is characterized by the splitting of the Si site into two sites. The results have been confirmed by Raman spectroscopy and density functional theory (DFT) calculations. Raman spectra indicate that the reconstructive phase transitions of both borosilicates are irreversible. Upon decompression, the triclinic phases persist metastably at least down to 12 and 17 GPa, for pekovite and maleevite, respectively. The comparison of the high-pressure behavior of danburite-group minerals with the general formula MB2Si2O8 (M = Ca, Sr, Ba) reveals that increasing size of an extraframework cation for M = Sr and Ba governs the stability of the danburite-type structure and prevents the formation of pentacoordinate silicon species observed in danburite (M = Ca)

DESIGNING THE STRATEGIES FOR SOCIO-ECONOMIC DEVELOPMENT OF MUNICIPALITY DISTRICTS ON THE BASIS OF SYNTHESIS METHODS FOR COMPLEX SYSTEMS RESEARCH

The article presents the results of research work on designing the strategies for socio-economic development for the Sholokhovskiy municipal district of Rostov region and Chusovskoy municipal district of Perm Region, which was made by research team of autonomous nonprofit organization of higher education «Eurasian Open Institute» (EOI) during the 2012-2013

Discovery of terrestrial allabogdanite (Fe,Ni)2P(Fe,Ni)_{2}P, and the effect of Ni and Mo substitution on the barringerite-allabogdanite high-pressure transition

Minerals formed at high pressures are sensitive indicators of extreme pressure-temperature conditions that occur in nature. The discovery of the high-pressure polymorph of (Fe,Ni)$_2$P, allabogdanite in the surficial pyrometamorphic rocks of the Hatrurim Formation (the Mottled Zone) surrounding the Dead Sea basin in Israel is the first terrestrial occurrence of a mineral previously only found in iron meteorites. Stepwise annealing experiments demonstrate that allabogdanite is metastable at ambient pressure and that it irreversibly transforms into its low-pressure polymorph, barringerite, upon heating to 850±50°C. High-pressure high-temperature diamond-anvil cell (DAC) experiments confirm the results of annealing experiments. The DAC data indicate that Hatrurim allabogdanite is metastable below 7.4 GPa, and the low- to high-pressure phase transition (barringerite→allabogdanite) occurs at 25±3 GPa and 1400±100°C. The observed transition pressure of Hatrurim allabogdanite is significantly higher than that of pure synthetic Fe$_2$P (8 GPa), due to partial substitution of Fe for Ni (4 wt.%) and Mo (2.5 wt.%). Because the influence of substituting impurities on the conditions of phase transitions can be unexpectedly strong, our findings confirm that caution should be exercised when extrapolating data from experiments on synthetic compounds to natural systems. Based on the discovery of terrestrial allabogdanite (Fe,Ni)$_2$P coupled with experiments probing the phase transitions in this natural composition, we contend that terrestrial allabogdanite formed via transformation from barringerite and posit potential scenarios of its formation