Lomonosov State University Research Articles

The degree of ischemia-reperfusion as a possible risk factor for the development of atrial fibrillation in patients with obstructive sleep apnea syndrome

Objective: the purpose of this study was to identify possible factors for the occurrence of atrial fibrillation (AF) in patients with obstructive sleep apnea syndrome (OSA). Materials and methods: the retrospective study included 50 patients (38 men and 12 women, average age 53 (13) years) admitted to Sleep Medicine Center of University clinic of Lomonosov State University with complaints of snoring and stop of breathig during sleep and who underwent a polysomnographic study. The study included only patients with moderate and severe OSA. For all patients included in the study, the presence of comorbidities was assessed: arterial hypertension (HTN), type 2 diabetes mellitus (DM), coronary heart disease (CHD) and restless legs syndrome (RLS). Results: 11 patients had a history of atrial fibrillation and/or during polysomnography. When assessing heart rhythm during a polysomnographic study, 5 patients (10%) had AF, of which 1 patient had not previously reported the presence of arrhythmia. A predictive model was developed to estimate the probability of AF (atrium fibrillation) conditioning on age, average desaturation, % using binary logistic regression. The resulting regression model is statistically significant (p < 0.001). Based on the value of Nagelkerke R², the model explains 50.6% of the observed AF variance. 1 increase of age is associated with 1.211 times increase in AF odds. 1 increase of average desaturation, % is associated with 1.448 times increase in AF odds. Conclusions: it was shown for the first time that, along with such a well-known risk factor for AF as age, parameters of respiratory disorders during sleep, namely, average desaturation, can play a role in the development of AF through the mechanisms of myocardial ischemia-reperfusion. Average desaturation, reflecting the degree of ischemia-reperfusion, may become a risk factor for the development of AF.

Rediscovery of <i>Malthesis ater</i> Motschulsky, 1853 and a catalog of the genus <i>Malthesis</i> Motschulsky, 1853 (Coleoptera, Cantharidae)

Malthesis is a Cantharidae genus with a history of ambiguous systematic placement, being sometimes classified within Malthininae and currently placed in Chauliognathinae, sometimes as a probable synonym of Chauliognathus. Part of the problem is a complete lack of knowledge about the identity of their type species, M. ater, from Colombia. The current generic placement is based on the identity of the subsequently described Malthesis species which, in turn, have never been compared with M. ater. One specimen belonging to the type series of M. ater, here designated as the lectotype, has been located at the Zoological Museum of M. V. Lomonosov State University (Moscow, Russia) and the identities of the species and genus could finally be assessed. Here, M. ater is re-described in detail based on the study of the afore mentioned lectotype and additional specimens from Colombia. The morphological study of the species confirms that most of the subsequently described species are indeed congeneric with M. ater and enables a reliable placement of the genus within Chauliognathinae: Chauliognathini. In addition, a fully updated catalog of all the 38 currently valid species and subspecies of Malthesis is given to ease their future taxonomic studies.

A review of Vietnamese Scolopocryptops Newport, 1844 (Chilopoda: Scolopendromorpha), with a description of S. hoanglieni n. sp. and the updated generic list of species.

The Vietnamese fauna of the genus Scolopocryptops Newport, 1844 was reviewed based on recently collected specimens and material from Zoological Museum of the Moscow Lomonosov State University (ZMMU) and Naturhistorisches Museum Wien (NHMW). As a result of study of 164 specimens from 13 sampling regions, four species have been recognized, of which S. rubiginosus C.L. Koch, 1878 and S. spinicaudus Wood, 1862 already reported from Vietnam, S. hoanglieni described as n. sp., and S. capillipedatus (Takakuwa, 1938) for the first time recorded for this country. S. broelemanni esulcata Attems, 1938 was redescribed and confirmed as a valid. The COI fragments were obtained for the above mentioned species and the K2P genetic divergence between Vietnamese Scolopocryptops species was preliminarily estimated. New data on intraspecific variations of spiracle number in Scolopocryptops, an identification key for East Asian species and the general list of species of Scolopocryptops are provided.

Выдумки корпоративного налогообложения и три способа подготовить его к вызовам цифровой эпохи

During the International Conference organized by the Institute of Public Administration and Civil Service of the Russian Presidential Academy of National Economy and Public Administration, the author presented a research project he was carrying out and presenting at several international institutions (among others, the University of Leiden, in the Netherlands, and the Lomonosov State University, also in the Russian Federation). The work is still in progress and is expected to be completed not earlier than 2022, in the form of one or more publishable articles. The presented article is brief report on the presentation held. Firstly, the author discusses the reasons why the solution to the taxation problems does not lie so much in redesigning the allocation rules and adopting new anti-avoidance measures in corporate income taxes. In a second part, the author argues that solutions may arise from reforming existing indirect taxes, based on the production, sale, use or ownership of goods and services and explores the possibilities to solve the current corporate taxation problems.

<p class="ZootaxaTitle"><strong>Obituary: Alexander Vladimirovich Rzhavsky (1959–2018)</strong></p>

Alexander (or Sasha as he was known and preferred to be addressed by his friends) Rzhavsky was born in Moscow, then USSR on 25 August 1959, which means he would have turned 60 soon after the 13th International Polychaete Conference held in Long Beach in August 2019. He was one of those “natural born biologists” whose keen interest in biology became obvious when he was still a child and this interest developed into both profession and life-time passion. In 1976 Alexander graduated from one of the high schools in Moscow that had a specialization in biology and a year later he started his undergraduate studies at Biological Faculty of Moscow Lomonosov State University. He started doing research at the Department of Zoology and Comparative Anatomy of Invertebrates as an undergraduate and that was the time when his scientific interests were determined, as both his Honors and Master’s projects were dedicated to polychaetes, the animals Sasha continued to study for the rest of his life. His diploma thesis was entitled “Ecology of Janua (Dexiospira) nipponica and J. (D.) alveolata (Polychaeta, Spirorbidae) near the southern shore of the Primorye and the morphology of their tubes”. Based on the results of these student projects Alexander published his first two research papers.

Опыт дистанционного проведения практических занятий по построению сегмента сети Интернет

Epidemiological conditions in autumn 2020 required that the most of courses and training in High school have to be executed in distant mode, online. This paper is devoted to moving online the practical training on computer network management, more concretely – on building of the segment of the Internet. This training was executed for several years in the CS department of the Lomonosov State University in the traditional way in the classroom. The scenario of the training includes configuring static routing, name service (DNS) and the firewall. The training was executed using the FreeBSD OS running in the virtual machines on the classroom workstations. The specialty of the solved problem is the reconstruction of the physical training network in the distant, distributed mode. The paper contains the brief description of the training scenario, with the focus on features with help or, in opposite, complicates the online execution, the description of the technology to reconstruct the training network, the discussion on tools for communication between trainer and trainees, the conclusions from the first experience of the distant training. The union of virtual private network technologies and bridging technologies (i.e., packet commutation by means of the OS software) was used to build the distributed training network. The Zoom online conferencing system was used for communications between trainer and trainees; alternatives are discussed shortly. The main conclusion from the experience of the online training is that online training with described scenario requires in 1,5 times more time than similar training in the classroom. Additional conclusion: to detect whether the trainee has completed a training step, an analysis of network traffic should be used as wide as possible instead of tests and inspection of configurations in trainee’s workstations. The results of the work can be used in case of repeated tightening of epidemiological conditions as well as in faculties and courses of distant education.

ФОРМИРОВАНИЕ ЭКОЛОГИЧЕСКОЙ ГРАМОТНОСТИ И СОЦИАЛИЗАЦИЯ ПОДРОСТКОВ В ПРОЕКТЕ «ПУТЕВКА В ЖИЗНЬ»

Московский государственный университет имени М.В. Ломоносова совместно с Федеральной службой исполнения наказаний с 2011 года проводит уникальный образовательный проект «Путевка в жизнь», в рамках которого несовершеннолетние школьники из воспитательных колоний пробуют свои силы в решении олимпиадных заданий по ряду дисциплин. Участие в олимпиаде по экологии способствует углублению знаний, формированию ответственной позиции у подростков, что является необходимым условием их социализации и трудоустройства в свободной жизни и снижает вероятность рецидива.

Investigation of a Quarrying Optimization Problem

Controlled quarrying models have been considered in [1, 2] and elsewhere. These models are the product of a collaboration between the Department of Optimal Control at the Lomonosov State University’s Faculty of Computation Mathematics and Cybernetics and the international mining company BHPB Billiton. The present article is a continuation of [1, 2]. Our quarrying model is highly simplified. Yet it reflects some important theoretical aspects that arise in mining.

New frontiers in Russian religious philosophy: The philosophical anthropology of Sergey S. Horujy

Sergey Sergeevich Horujy is one of the most prolific philosophers in Russia today.1 Born in 1941, he studied physics at Lomonosov State University in Moscow, received his PhD in physico-mathematica...

ChemInform Abstract: 1‐Sulfonyl‐1,2,3‐triazoles as Promising Reagents in the Synthesis of Nitrogen‐Containing Linear and Heterocyclic Structures (Microreview)

AbstractReview: [26 refs.

1-Sulfonyl-1,2,3-triazoles as promising reagents in the synthesis of nitrogen-containing linear and heterocyclic structures (microreview)

Yulia Alekseevna Volkova graduated with honors from the Moscow M. V. Lomonosov State University in 2008 and defended her PhD thesis at the same place in 2011. Currently, she is researcher at the N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences. Research interests: chemistry of heterocycles, synthesis of heterosteroids. Sergey Aleksandrovich Gorbatov graduated from the D. Mendeleev University of Chemical Technology of Russia (Moscow) in 2016 in the specialty chemical engineering of synthetic biologically active substances. Currently, he is a graduate student of the N. D. Zelinsky Institute of Organic Chemistry. Research interests: chemistry of heterocycles, heterocyclic derivatives of steroids. Synthesis of 1-sulfonyl-1,2,3-triazoles

Полонистика в Московском Государственном Университете имени м. В. Ломоносова

Polish studies at Lomonosov State University in MoscowPolish Studies at Moscow University are one of specialisations of the department of Slavic Studies at the Faculty of Linguistics. The beginnings of Slavic Studies as a university discipline dates back in 1835. In the 20th century such outstanding scholars as Afanasij Sieliszczew and Samuił Bernsztejn worked as lecturers here. The Polish language and literature together with Czech, Serbo-Croatian and Bulgarian department has existed permanently until today. The Chair of Polish Studies is currently held by the author of the article. Enrolment for Polish Studies takes place once three years. Groups consist of ca. 10–15 people. There is a division into two specialisations – linguistics and literature since the second year of studies. The article presents the subject matter of research and scientific work of didactic workers and their main publications. Student training in Poland and lectures of Polish specialists help mastering fluency in the Polish language.

A catalogue of the Chrysididae (Insecta, Hymenoptera) types deposited in the Zoological Museum, Moscow Lomonosov State University, Russia.

A critical and annotated catalogue of 52 types of Chrysididae belonging to 32 species deposited in the Zoological Museum of Moscow Lomonosov State University is given. The lectotypes of Chrysis sabulosa Radoszkowski, 1877 and Ellampus (Philoctetes) fedtschenkoi Semenov, 1932 are designated. New synonyms are proposed for (valid name first): Omalus imbecillus (Mocsáry, 1889) = Ellampus kozhevnikovi Semenov, 1932, syn. nov., and Chrysis speciosa Radoszkowski, 1877 = C. fulvicornis Mocsáry, 1889, syn. nov. The status of Hedychridium erschovi (Radoszkowski, 1877), stat. resurr. is revalidated.

Vibrocreep of metals in uniaxial and complex stress states

The results of the creep tests with extension and torsion of tubular specimens made of D16AT and AD1 aluminum alloys, which were earlier obtained at the Institute of Mechanics, Lomonosov State University, were analyzed theoretically. Experimental data obtained with the author’s participation imply that a sharp increase in creep rate is observed under certain conditions when a vibration stress of small amplitude is added to the static stress. This effect (vibrocreep effect) is manifested only if the form of the stress state under the common action of static and dynamic stresses differs from the form of the static stress state. In this case, as the duration of the applied vibration stress increases, the vibrocreep effect gradually weakens.

Lomonosov Moscow State University: the major centre for Russian research and education into tourism and recreation

The author discusses the tourism geography research which has been undertaken at Lomonosov State University in Moscow over many years. This academic institution is one of the most famous research centres dealing with spatial recreation systems. At first (from the 1960’s), research was mainly on geographical and technical issues, but the research area was gradually enlarged for example to include social and humanistic elements. The best known research has been done on ‘spatial recreation systems’, ‘polarized landscapes’, the ‘recreational economy spatial complex’, and the ‘environmental model of a spatial system’.

The Twentieth International Conference on Automatic Control "AUTOMATICS-2013"

International conferences on automatic control are initiated by Ukrainian Association on Automatic Control (UAAC) and held annually since 1994. In September 25–27 on the basis of Admiral Makarov National Shipbuilding University the town of Nikolaev held XX International Conference on Automatic Control “AUTOMATICS–2013”. The conference was devoted to 100birthday anniversary of the outstanding Ukrainian scientist in the field of technical cybernetics, Academician of National Academy of Sciences of Ukraine A.G. Ivakhnenko. The goal of the Conference is the discussion of research and development results in the field of control of complex objects of different nature, discussion of development tendencies in the control science, establishment of scientific contacts, involvement of talented young people in scientific investigations. The organizers of Conference were National Academy of Sciences (NAS) of Ukraine, Ministry of Education and Science (MES) of Ukraine, Ukrainian Association on Automatic Control, National Committee of Russia on Automatic Control, V.M. Glushkov Institute of Cybernetics of NAS of Ukraine, Institute of Space Research of NAS and SSA of Ukraine, International Scientific-Educational Center of Information Technologies and Systems of NAS and MES of Ukraine, Moscow M.V. Lomonosov State University, Admiral Makarov National Shipbuilding University, Academy of Sciences of Shipbuilding of Ukraine. Subject matters of the Conference were presented in six sections. • Mathematical problems of control, optimization and game theory. • Control and identification under uncertainty conditions. • Automatic control in technical systems. • Control of aerospace, marine and other moving objects.

Educational Program “Navigation and Control in Space and on the Earth. Mathematical Methods and Algorithms”

Educational Master of Science program “Navigation and control in Space and on the Earth. Mathematical methods and algorithms”, developed at Moscow Lomonosov State University is presented. The program is expected to provide specialists of high qualifications for aerospace and navigation industries. The engineers developing navigation systems, personal navigation, autopilots were taken in mind. The program combines fundamental university education standards and industrial applications.

From the report M.V. Lomonosov and Moscow State University

From the report M.V. Lomonosov and Moscow State University

POSTER PRESENTATIONS

POSTER PRESENTATIONS

ORAL PRESENTATION

ORAL PRESENTATION