Thermobaric synthesis, structure, and properties of Dy x Cu 3V4O12

The perovskite-like compound Dy x Cu3V 4O12 (x = 0.67-0.75) is synthesized under high pressure (P = 4.0-9.0 GPa) and temperature (T = 1000 C). Its crystal structure is determined (Im-3 space group, Z = 2, a = 7.29348(7) Å) by means of powder X-ray diffraction. The basic lengths and bond angles are defined. It is found that the high-pressure phase of Dy x Cu3V 4O12 is characterized by metallic conductivity and paramagnetic properties. © 2013 Allerton Press, Inc

Dielectric properties of La2-хSrхNiO4 and La2-xSrxNiyCuyO4 ceramic materials

Research supported by grants from RFBR No14-03-00103 and No16-02-00857

Synthesis and characterization of the new high pressure phases A Cu 3 v 4O 12 (A =Gd, Tb, Er)

New ACu3V4O12 (A=Gd, Tb, Er) phases have been prepared at high pressure and high-temperature conditions (P∼8-9 GPa, T∼1000°C) in a toroid-type high pressure cell. These compounds crystallize in the cubic symmetry with a perovskite-like structure. At ambient pressure, they are paramagnetic and have activation-type conductivity. The effect of high pressure (10-50 GPa) on the electrical properties of the materials was analyzed in the temperature range from 78 to 300 K. Pressure ranges of the transition from activation type to metallic conductivity have been determined. The crystal structure of ACu3V4O12 (A=Gd, Tb, Er) was found to be stable up to 50 GPa. © 2013 Copyright Taylor and Francis Group, LLC

The influence of high pressure on the complex permittivity of the perovskite – like phases CaCu3Ti4-xVxO12

This work was supported by the RFBR (projects No. 16-02-00857 and No. 15-03-00868)

Hydrolytic enzymes and spore formation in Bacillus intermedius | Gidroliticheskie fermenty i sporoobrazovanie u Bacillus intermedius.

The investigation of the activity of extracellular hydrolytic enzymes and sporulation in the bacterium Bacillus intermedius 3-19 showed that the activity of ribonuclease is maximal in the glucose-containing growth medium, in which sporulation is suppressed. At the sporulation stages II-IV, the synthesis of phosphatase was not regulated by the factors that influence this synthesis in the phase of growth retardation. Caseinolytic activity exhibited two peaks. The first peak was observed when thiol-dependent proteinase began accumulating in the medium. The second peak corresponded to the late stages of sporulation, i.e., the stages of spore maturation and the autolysis of sporangium. The regulatory relationship between proteinase synthesis and sporulation and the possible role of extracellular phosphatases and proteinases in the sporulation are discussed

Modern approaches for correcting destructive behavior in the internet

In this article, the authors consider the phenomenon of destructive behavior on the Internet from the point of view of its essential characteristics, premorbids, and social meanings. The analysis also includes age categories as risk categories subject to inclusion in destructive behavior in the network and information on modern views on approaches to the prevention and correction of the phenomenon.В данной статье авторами рассматривается феномен деструктивного поведения в сети Интернет с точки зрения его сущностных характеристик, преморбидов, социальных значений. Также анализу подвергаются возрастные категории как категории риска, подверженные включению в деструктивное поведение в Сети, и сведения о современных взглядах на подходы к профилактике и коррекции феномена

Excess content: phenomenon, consequences, work strategies

Показаны проблемы бытия современных детей в условиях избыточности контент-пространства. Особое внимание уделяется трансформации мозга и когнитивных способностей ребенка под воздействием информационной избыточности. Рассматриваются теоретические основы обозначенного феномена и намечаются способы преодоления тенденции снижения функциональности мозга нового поколения детей.The article deals with the problems of being modern children in conditions of redundancy of content place. Special attention is paid to the transformation of the brain and cognitive sphere of influence the epidemiological data. The theoretical foundations of the function of the indicated phenomenon are considered, and ways of overcoming the tendencies of decreasing brain activity of the new generation are outlined

Screening Study for Anticonvulsive Activity of Lipophilic Fractions from Empetrum nigrum L.

The plants of genus Empetrum, which are used in the traditional medicine to cure seizures and neurodegenerative diseases, can be considered as potent antiepileptic drugs. This paper focuses on a comparative analysis of an anticonvulsive activity of lipophilic fractions from Empetrum nigrum L

Hydrolytic enzymes and sporulation in Bacillus intermedius

The investigation of the activity of extracellular hydrolytic enzymes and sporulation in the bacterium Bacillus intermedius 3-19 showed that the activity of ribonuclease is maximal in the glucose-containing growth medium, in which sporulation is suppressed. At the sporulation stages II-IV, the synthesis of phosphatase was not regulated by the factors that influence this synthesis in the phase of growth retardation. Caseinolytic activity exhibited two peaks. The first peak was observed when thiol-dependent proteinase began accumulating in the medium. The second peak corresponded to the late stages of sporulation, i.e., the stages of spore maturation and the autolysis of sporangium. The regulatory relationship between proteinase synthesis and sporulation and the possible role of extracellular phosphatases and proteinases in the sporulation are discussed. © 2002 MAIK "Nauka/Interperiodica"