Neutrino physics with the Baksan Underground Scintillation Telescope

The neutrino experiment at the Baksan Underground Scintillation Telescope is operating for 35 years. We present an updated analysis of observed upward through-going muons in searches for a signal from dark matter annihilations in the Sun and the astrophysical local sources

Annihilation of NMSSM neutralinos in the Sun and neutrino telescope limits

We investigate neutralino dark matter in the framework of NMSSM performing a scan over its parameter space and calculating neutralino capture and annihilation rates in the Sun. We discuss the prospects of searches for neutralino dark matter in neutrino experiments depending on neutralino content and its main annihilation channel. We recalculate the upper limits on neutralino-proton elastic cross sections directly from neutrino telescopes upper bounds on annihilation rates in the Sun. This procedure has advantages as compared with corresponding recalcalations from the limits on muon flux, namely, it is independent on details of the experiment and the recalculation coefficients are universal for any kind of WIMP dark matter models. We derive 90% c.l. upper limits on neutralino-proton cross sections from the results of the Baksan Underground Scintillator Telescope.Comment: 28 pages, 16 figures, accepted for publication in JCAP, references adde

Neutralino Dark Matter beyond CMSSM Universality

We study the effect of departures from SUSY GUT universality on the neutralino relic density and both its direct detection and indirect detection, especially by neutrino telescopes. We find that the most interesting models are those with a value of $M_3|_{GUT}$ lower than the universal case.Comment: 20 pages, 12 figures, JHEP format. Figures improved for B&W, references added, typos and english correcte

Baikal-GVD

We present the status of the Gigaton Volume Detector in Lake Baikal (Baikal-GVD) designed for the detection of high energy neutrinos of astrophysical origin. The telescope consists of functionally independent clusters, sub-arrays of optical modules (OMs), which are connected to shore by individual electro-optical cables. During 2015 the GVD demonstration cluster, comprising 192 OMs, has been successfully operated in Lake Baikal. In 2016 this array was upgraded to baseline configuration of GVD cluster with 288 OMs arranged on eight vertical strings. Thus the instrumented water volume has been increased up to about 5.9 Mtons. The array was commissioned in early April 2016 and takes data since then. We describe the configuration and design of the 2016 array. Preliminary results obtained with data recorded in 2015 are also discussed

Personal compatibility of physician and patient

The article discusses and details the interpersonal compatibility of the physician and the patient in the course of their interaction, which is the basis of medicine, the platform on which the treatment process is based. An analysis of the concept of compatibility has been carried out, which is presented in domestic and foreign psychological literature. The analysis suggests that personal compatibility is a function of satisfaction with collaborative action, since it is initially necessary to interact, followed by compatibility, the result of which is rebuilt in satisfaction. By analyzing the statements of domestic and foreign psychologists, compatibility can be imagined in the form of an ideal combination of qualities and senses, resulting in the maximum result in carrying out various actions. Thus, personal compatibility is important in all types of social relationships, but it plays a special role in the long-term relationship between the doctor and the patient. The study concluded that the compatibility of the physician and the patient, as well as the building of an informed relationship between them, is significantly influenced by the presence of similar personal characteristics. The similarity of the personal characteristics of the doctor and the patient allows achieving the best result in their joint activity

The development of personality qualities of future officers of law enforcement agencies of the Russian Federation

The article is devoted to the problems of the development of the emotional and volitional sphere within the framework of the formation of the personal subjectivity of the future officers of Russia. The authors draw attention to the area of concern of appropriate assessment of the situation in conditions of constant changes and the dependence of the subjectivity on rational and emotional risk factors when making a decision by the commander. The main methods were studying. systematizing and making conclusions on literature sources concerning the stated problem of the study. preparing proposals. The article presents an analysis of the data of various researchers on the problem of the formation of personal subjectivity of a person

Thermal insulation materials on the basis of microsilica

The main areas of silica application have been examined in the paper. It has been found that microsilica can be used in manufacture of wollastonite-containing ceramic matrixes and composite materials with expanding shale and nepheline-process waste as filler

Effect of Doping of Plant Raw-Based Activated Carbons with Iron Nanoparticles on Their Catalytic Activity in the Reaction of Propane Dehydrogenation

Abstract: A method is developed for creating highly active and selective catalysts for associated petroleum gas cracking which is based on use of activated carbons derived from renewable sources of plant raw materials (Jerusalem artichoke, false flax, rape, wheat) modified with nanosized iron particles obtained in reverse-micellar solutions. It is shown that carbon matrices modified with iron nanoparticles possess а high catalytic activity with the maximum conversion attained at 900 К and a high selectivity for olefin formation (about 95%). © 2020, Pleiades Publishing, Ltd