The relationship between parameters of the peyer's patches of the small intestine in intact rats

This paper deals with the study of the relationship between parameters of the Peyer’s patches of the small intestine in intact rats of different age groups. The correlation analysis revealed the direct relationship between the parameter

Innovational outsourcing in construction enterprises’ activity

Визначено особливості впровадження інноваційного аутсорсингу в діяльності будівельних підприємств і виокремлено основні фактори, які впливають на зазначений процес.The features of the implementation of innovative outsourcing in the construction enterprises’ activities are described, and the main factors that influence this process are singled out

Monotonic non-linear transformations as a tool to investigate age-related effects on brain white matter integrity: A Box-Cox investigation

Non-linear effects of age on white matter integrity are ubiquitous in the brain and indicate that these effects are more pronounced in certain brain regions at specific ages. Box–Cox analysis is a technique to increase the log-likelihood of linear relationships between variables by means of monotonic non-linear transformations. Here we employ Box–Cox transformations to flexibly and parsimoniously determine the degree of non-linearity of age-related effects on white matter integrity by means of model comparisons using a voxel-wise approach. Analysis of white matter integrity in a sample of adults between 20 and 89 years of age (n = 88) revealed that considerable portions of the white matter in the corpus callosum, cerebellum, pallidum, brainstem, superior occipito-frontal fascicle and optic radiation show non-linear effects of age. Global analyses revealed an increase in the average non-linearity from fractional anisotropy to radial diffusivity, axial diffusivity, and mean diffusivity. These results suggest that Box–Cox transformations are a useful and flexible tool to investigate more complex non-linear effects of age on white matter integrity and extend the functionality of the Box–Cox analysis in neuroimaging

Preparation and characterization of Bi26–2xMn2xMo10O69-d and Bi26.4Mn0.6Mo10–2yMe2yO69-d(Me = V, Fe) solid solutions

Received: 06.06.2017; accepted: 23.06.2017; published: 14.07.2017.Single phase samples of bismuth molybdate, Bi26Mo10O69, doped with Mn on the bismuth sublattice and V, Fe on the molybdenum sublattice were found to crystallize in the triclinic Bi26Mo10O69 structure at low doping levels and in the monoclinic Bi26Mo10O69 structure - at higher dopant concentration. The assumption that all Mn ions have an oxidation state of +2 was confirmed by means of magnetic measurement results analysis using Curie-Weiss law. Conductivity was investigated using impedance spectroscopy. The conductivity of Bi26.4Mn0.6Mo9.6Fe0.4O69-d was 1.2*10-2 S*cm-1 at 973 K and 2.2*10-4 S*cm-1 at 623 K, and the conductivity of Bi26.4Mn0.6Mo9.2V0.8O69-d was 2.2*10-3 S*cm-1 at 973 K and 2.2*10-5 S*cm-1 at 623 K

Crystal structure and conductivity of bismuth-containing complex oxides

In the paper, a comprehensive systematic study of different classes of bismuth containing oxide compounds was carried out. The relationship between composition, temperature and concentration regions of existence of stable, specific structure and properties of solid solutions on the basis of vanadates, molybdates, niobates and bismuth was found. The general regularities of synthesis of solid solutions with different variants of solid-phase and soluble methods were determined. On this basis, the optimal conditions for obtaining single-phase materials were formulated. For the first time the temperature and concentration boundaries of the regions of homogeneity and areas of stable existence of polymorphic modifications of solid solutions were defined and/or refined. The structural parameters of the synthesized phases were determined. By the method of electrochemical impedance spectroscopy the nature and features of impedance spectra, the temperature and concentration dependences of electrical conductivity of ceramic materials based on bismuth containing complex oxides were identified

NMR and LDA evidence for spiral magnetic order in the chain cuprate LiCu2O2

We report on {6,7}Li nuclear magnetic resonance measurements of the spin-chain compound LiCu2O2 in the paramagnetic and magnetically ordered states. Below T about 24 K the NMR lineshape presents a clear signature of incommensurate (IC) static modulation of the local magnetic field consistent with an IC spiral modulation of the magnetic moments. {7}Li NMR reveals strong phason-like dynamical fluctuations extending well below 24 K. We hypothesize that a series of phase transitions at 24.2, 22.5, and 9 K reflects a "Devil's staircase" type behavior generic for IC systems. LDA based calculations of exchange integrals reveal a large in-chain frustration leading to a magnetical spiral.Comment: 4 pages, 4 figure

Behaviour of the Blazar CTA 102 during two giant outbursts

Blazar CTA 102 underwent exceptional optical and high-energy outbursts in 2012 and 2016-2017. We analyze its behaviour during these events, focusing on polarimetry as a tool that allows us to trace changes in the physical conditions and geometric configuration of the emission source close to the central black hole. We also use Fermi gamma-ray data in conjunction with optical photometry in an effort to localize the origin of the outbursts.AST-1615796 - Boston Universit

Content and conditions for forming the cluster of pedagogic competences in the system of values of design studies undergraduates

One of the burning issues of the Russian system of higher education is lack of mechanisms for interaction with the labour market. Both employers and university graduates have noted a tendency of job placement irrelevant to the degree field. Many Design Studies graduates, due to high competition in the labour market, choose to go in for teaching. An academic university, in contrast to a teacher training higher institution, can offer only a limited part of the curriculum for teacher training of students. In this regard, the problem of forming a cluster of pedagogic competences among academic students at the stage of professional training is important nowadays. It includes acquiring professionally important skills, personal qualities, theory, professional skills and developing a system of values essential for a teacher. The system of values as part of teacher training of students of non-teacher training institutions consists in promoting the formation of integral personal characteristics that act as direct indicators of the formation of their pedagogic competences. The authors of the article have conducted a study to determine the content and conditions for the formation of a cluster of pedagogic competences in the system of values of Design Studies undergraduates of Kazan Federal University, related them to similar values of teachers working in the field of general education, suggested ways to optimize the process of providing teacher training for academic students and grounded the leading role of teaching practice in the matter

Forms of students' intercultural communication development in a multicultural academic university

© The authors. The objective of the article is to study the concept of "intercultural communication", different ways of its application, the role and related concepts. The article presents basic forms of intercultural communication of students as well as the importance of the process in a multicultural environment of a university. The authors chose a descriptive method of observation and classification of the material as a leading approach alongside with the analysis and synthesis of the data obtained through interviews and polls. The findings suggest that interethnic interaction plays an important role, thus its formation should be integrated into the learning process. The authors also note the role of folk culture in intercultural communication and optimization of a multicultural university in terms of such communication. The research introduces forms of students' intercultural communication in a multicultural university that will contribute to a more effective communication of representatives of different cultures and pupils at multi-ethnic schools

ПОБУДОВА МОДЕЛІ МІНІМІЗАЦІЇ ФІНАНСОВИХ РИЗИКІВ МАШИНОБУДІВНИХ ПІДПРИЄМСТВ

The article is based on a financial condition indicators system, which assesses the financial risk of the enterprise, and their grouping according to the nature of the impact on the enterprise financial position. The following financial risks groups have been identified: the inappropriate capital structure, inefficient financial activity, liquidity decline, ineffective operating activities, the imbalances in cash flows and ineffective investment activities risks. Each group of indicators is selected by the "center of gravity"one representative method to construct a model for assessing the financial risk in the enterprise level. It is determined that representative indicators in identifying the financial risk in an enterprise level are: coefficient of autonomy, coefficient of turnover of capital, absolute liquidity ratio, return on sales, net cash flow ratio, total return on investment.At the next stage of constructing a model for enterprise financial risks minimizing using expert method, representative indicators are measured according to their informativity for assessing financial risk at the enterprise. Taking into account the indicators significance, a machine-building enterprises assessment financial risk model was constructed on the basis of the enterprise financial risk level indicators-representatives additive convolution with their significance weight coefficients correction.The functional dependencies between the indicators are determined given the direct and inverse nature of the link between the indicators that characterize the machine-building enterprises financial risk, using correlation-regression analysis. An optimization model for machine-building enterprises financial risks minimizing was built on the principle of limiting financial risks. Optimizing the model means getting the maximum integral index value of the financial risk neutralization level. To this end, the Kuhn-Tucker theorem is used. As a result of model optimization it was revealed that from the point of view the financial risks at machine-building enterprises level minimizing, the optimum values of financial indicators are: for the coefficient of autonomy — 0.41; for the capital turnover coefficient — 31,0; for the coefficient of absolute liquidity — 0,45; for a profitability ratio of sales — 0,29; for the coefficient of sufficiency of net cash flow — 0,60; for the coefficient of total return on investment — 0,28. The established norms of financial indicators provide financial risk minimization at machine-building enterprises.Построены модель оценки уровня финансовых рисков на машиностроительных предприятиях, а также модель минимизации финансовых рисков машиностроительных предприятий. Определены оптимальные значения финансовых нормативов: коэффициента автономии, оборачиваемости капитала, абсолютной ликвидности, рентабельности продаж, достаточности чистого денежного потока, совокупной рентабельности инвестиций, соблюдение которых снизит уровень финансовых рисков на предприятиях, обеспечит эффективность их деятельности, финансовую устойчивость, ликвидность и платежеспособность.Побудовано систему показників фінансового стану, за якими оцінюється фінансовий ризик підприємства, та здійснено їхнє групування за характером впливу на фінансовий стан підприємства. Виділено такі групи фінансових ризиків: ризик нераціональної структури капіталу, ризик неефективної фінансової діяльності, ризик зниження ліквідності, ризик неефективної операційної діяльності, ризик незбалансованості грошових потоків і ризик неефективної інвестиційної діяльності. Для побудови моделі оцінки рівня фінансового ризику на підприємстві з кожної групи показників обрано по одному репрезентативному методом «центру ваг». Визначено, що репрезентативними показниками при ідентифікації рівня фінансового ризику на підприємстві є: коефіцієнт автономії, коефіцієнт оборотності капіталу, коефіцієнт абсолютної ліквідності, коефіцієнт рентабельності продажів, коефіцієнт достатності чистого грошового потоку, сукупна рентабельність інвестицій.На наступному етапі побудови моделі мінімізації фінансових ризиків підприємства з використанням експертного методу проранговано репрезентативні показники за їхнього інформативністю для оцінки фінансового ризику на підприємстві. З урахуванням значимості показників побудовано модель оцінки фінансових ризиків машинобудівних підприємств на основі адитивної згортки показників-репрезентантів рівня фінансового ризику підприємства з коригуванням на вагові коефіцієнти їхньої значимості.Ураховуючи прямий і обернений характер зв’язку між показниками, що характеризують рівень фінансового ризику машинобудівних підприємств, з використанням кореляційно-регресійного аналізу, визначено функціональні залежності між показниками. Побудовано оптимізаційну модель мінімізації фінансових ризиків машинобудівних підприємств, в основу якої закладено принцип лімітування фінансових ризиків. Оптимізація моделі означає отримання максимального значення інтегрального показника рівня нейтралізації фінансового ризику. Для цього використано теорему Куна — Таккера. У результаті оптимізації моделі виявлено, що з позиції мінімізації рівня фінансових ризиків на машинобудівних підприємствах оптимальними значеннями фінансових показників є: для коефіцієнта автономії — 0,41; для коефіцієнта оборотності капіталу — 31,0; для коефіцієнта абсолютної ліквідності — 0,45; для коефіцієнта рентабельності продажів — 0,29; для коефіцієнта достатності чистого грошового потоку — 0,60; для коефіцієнта сукупної рентабельності інвестицій — 0,28. Установлені нормативи фінансових показників забезпечують мінімізацію фінансового ризику на машинобудівних підприємствах