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

A healthy lifestyle of university students

There is a correlation between success in learning and attitude towards their health. This arises from the fact that the attitude towards health, in the full sense of the word, is the ratio of the individual to himself and lies at the heart of its activityСуществует взаимосвязь между успешностью в обучении и отношением к своему здоровью. Это возникает вследствие того, что отношение к здоровью, в полном смысле этого слова, является отношением личности к себе и лежит в основе ее жизнедеятельност

Conditions for the formation of a non-autonomous phase at the structural deformation of complex vanadium oxides

Received: 02.03.2018. Accepted: 10.04.2018. Published: 10.05.2018.A new previously unknown effect of a reversible transition from a singlephase system to a heterophase system containing a non-autonomous phase was observed during thermal and chemical deformations of the Zn2–2xCd2xV2O7 structure.The role of local symmetry in the formation of the non-autonomous phase is shown on the basis of X-ray diffraction studies in situ and a comparative crystal-chemical analysis of the structural deformations of isoform monoclinic solid solutions of zinc and copper pyrovanadates with zero volumetric thermal expansion.The work was supported by UB RAS (project 18-10-3-32)

Interplay between lattice, orbital, and magnetic degrees of freedom in the chain-polymer Cu(II) breathing crystals

The chain-polymer Cu(II) breathing crystals C21H19CuF12N4O6 were studied using the x-ray diffraction and ab initio band structure calculations. We show that the crystal structure modification at T=146 K, associated with the spin crossover transition, induces the changes of the orbital order in half of the Cu sites. This in turn results in the switch of the magnetic interaction sign in accordance with the Goodenough-Kanamori-Andersen theory of the coupling between the orbital and spin degrees of freedom.Comment: 6 pages, 7 figure

Synthesis, Structure, and Investigation of Bismuth Niobate Doped by Alkaline-Earth Elements

Polycrystalline samples with general formula Bi3

In vitro clonal micropropagation of Aronia L. varieties from the collection of the botanic garden of the National Research University “BelSU” (Belgorod, Russia)

Studying the characteristics of in vitro cultivation of species and varieties of Aronia made it possible to determine the optimal conditions for sterilizing plants, the composition of the medium for propagation and rhizogenesis of explants. Adaptation plant varieties of Aronia obtained using the developed media and cultivation regimes is characterized by a high survival rate (97-99%) under unsterile conditions, which makes them potential objects for mass replication by clonal micropropagatio

ОСОБЛИВОСТІ ВИКОРИСТАННЯ СУДОВОЇ ЕКСПЕРТИЗИ ЗА ЗАКОНОДАВСТВАМИ УКРАЇНИ ТА ФРАНЦІЇ

The authors have analyzed the current procedural legislation of France on performance of forensic expertises; have revealed common and distinctive features with the procedural legislation of Ukraine to determine the possibilities of using positive experience to improve the expertise activities in Ukraine. Particular attention is paid to the principles of the expert’s activities and the possibilities of their implementation in Ukraine; to the research of the expert’s participation in the court proceedings and the role in the conclusion of an amicable agreement. Proceedings of forensic expertise in Ukraine would significantly increase its effectiveness in the process of proving with the use of approaches that are widely used in French procedural law, namely: judicial expertise is understood and interpreted as an alternative method of judicial disputes resolution; experts are not only observers but also actors who participate in conciliation; an expert mediates the parties, whom he meets, interviews, listens, meets with records; he takes a winning position to simplify the conclusion of an amicable agreement. As a result of the conducted research of procedural laws of France concerning the conduction of expertises it has been established that the adversarial process is realized through constant interaction between the participants of the proceedings with the judicial expert. In turn, the transparency of the process is guaranteed with preparing a significant number of mandatory documents by the expert (reports, interim notes, landmark report, summarizing note, preliminary report, final report), which are introduced to parties that may raise additional questions.Проаналізовано чинне процесуальне законодавство Франції щодо провадження судових експертиз, виявлено спільні та відмінні риси із процесуальним законодавством України для визначення можливостей використання позитивного досвіду в удосконаленні експертної діяльності. Особливу увагу приділено розгляду принципів діяльності експерта та можливостям їх реалізації в Україні. Досліджено участь експерта в судовому провадженні та його роль в укладанні полюбовної угоди