63 research outputs found
Shestakov-Umirbaev reductions and Nagata's conjecture on a polynomial automorphism
No full textIn 2003, Shestakov-Umirbaev solved Nagata's conjecture on an automorphism of a polynomial ring. In the present paper, we reconstruct their theory by using the "generalized Shestakov-Umirbaev inequality", which was recently given by the author. As a consequence, we obtain a more precise tameness criterion for polynomial automorphisms. In particular, we deduce that no tame automorphism of a polynomial ring admits a reduction of type IV.Articledepartmental bulletin pape
INTERFERENCE INTO THE POLICY OF A SOVEREIGN STATE AS A CRIMINOLOGICAL PROBLEM
No full textRETRACTION:Date of retraction: 13.03.2017Reason for retraction: Duplicate publication in several editionsAdditional information about the causes of retraction:The article “Interference into the policy of a sovereign state as a criminological problem”, written by Shestakov Dmitry Anatolyevich, Doctor of Law, St. Petersburg University of the Ministry of Internal Affairs of Russia, is a duplicate publication. Information from public databases allowed the editors of the journal "Actual Problems of Economics and Law" to identify a violation of publication ethics. The article of the indicated author, containing essentially the same data and conclusions, was published in another publication with a different title: INTERVENTION IN DOMESTIC POLICY: A CRIMINOLOGICAL EVALUATION // All-Russian Journal of Criminology. 2012. №2. pp. 93-97 (http://elibrary.ru/item.asp?id=17764527).Article by Shestakov D.A. Interference into the policy of a sovereign state as a criminological problem // Actual Problems of Economics and Law. 2012. №2. P. 231-236 (http://elibrary.ru/item.asp?id=17767996) is retracted with the consent of the author, editor-in-chief and publisher.The Editorial Board of the Journal, when publishing scientific research materials, bases its performance on the rules of publication ethics observed by the Editorial Board members, reviewers and authors. According to these rules, the author shall guarantee that the article is published for the first time and was not previously published or submitted to another journal. From the side of the editor-in-chief and publisher, the author D.A. Shestakov was pointed out the inadmissibility of such actions and a decision was made to withdraw the article from elibrary.ru and the journal's website
Enicospilus perlatus Shestakov 1926
No full textEnicospilus perlatus Shestakov, 1926 Enicospilus perlatus Shestakov, 1926: 30. Lectotype ♀ from Turkmenistan in ZIN, examined. Enicospilus tricolor Hedwig 1957: 107. Holotype ♀ from Iran in SMNS, examined. Enicospilus perlatus hebraicator Aubert 1966: 43? Holotype ♀ from Israel in MZLS, examined. Material examined: IRAN: Holotype ♀ of Enicospilus tricolor Hedwig 1♀, Iran, Belutschistan, SO Iranshar, Bampurufer, 13. März 1955. Richter & Schäuffele leg. (SMNS); 1♀, Hormozgan Province, Minab, 11 Mar. 1971, Paz. / Ayt. leg. (HMIM). DNA Barcode: The DNA barcode sequences of two specimens of Enicospilus perlatus from Jordan are available at the BOLD systems database: sample id. NJP748/749, sequence id. LNU2584-21/2585-21. Remarks: According to Gauld via Horstmann (1981) possibly an unresolved aggregate of species. Enicospilus nervellator Aubert, 1966, which occurs in several countries in the Middle East could also be expected to occur in Iran. This species has the flagellomeres stouter and less numerous (50–52 in nervellator, 52–57 in perlatus), the head usually more strongly narrowed behind the eyes and the nervellus broken in the lower third by the abscissa (holotype ♀ in NHML studied). The similiarities between the two species are striking and there is some confusing variation regarding the characters used to distinguish the species and the first author have studied specimens with longer flagellomeres and the nervullus broken in the lower third. Aubert & Shaumar (1978, p. 16) also noted that the shape of the temples and flagellomeres are more variable than assumed in the original description. However, the shape of the temples and face and the different features of the antennae supports the existence of two valid, but morphologically very similar species. The treatment of Enicospilus nervellator and E. perlatus in Gadallah et al. (2017) is confusing. In the key to species both E. nervellator and E. perlatus key out under couplet 3b “Mesosoma uniformly coloured”, despite both nominate species having extensive pale markings on the mesosoma, which is also displayed by the depicted specimen of E. nervellator (p. 14, Fig. 4A). In couplet 17, E. nervellator is distinguished from E. perlatus by the short mid tibial spurs and the weakly sclerotized and elongate central alar sclerite, which both are features clearly evident in both species. Two specimens of E. perlatus collected in Jordan (OÖLM) were barcoded and they form a mixed cluster in BOLD with two specimens of E. nervellator from Saudi Arabia (Gadallah et al. 2017) and one specimen of E. perlatus ssp. hebraicator Aubert from Spain. This indicates that E. nervellator indeed is a junior synonym of E. perlatus, but preferably, additional markers should be analysed before any definitive conclusion will be made.Published as part of Johansson, Niklas, Ameri, Ali, Riedel, Matthias, Talebi, Ali Asghar & Ebrahimi, Ebrahim, 2021, Contribution to the Ophioninae (Hymenoptera: Ichneumonidae) of Iran with the description of 16 new species and an illustrated key to the Eremotylus of the Western Palaearctic, pp. 151-206 in Zootaxa 5023 (2) on page 164, DOI: 10.11646/zootaxa.5023.2.1, http://zenodo.org/record/522565
Additions and Corrections; Contents; Missing Figures §§
No full textПредставлены дополнения и поправки к текстам первого тома переведенных С. Шестаковым на русский язык речей Либания и комментариев к ним, а также оглавление к изданию.
Additions and corrections to the texts of the first volume of Libanius’ speeches translated into Russian by S. Shestakov, and also a table of contents to this volume, are represented.Перевод речей Либания можно найти здесь: http://elar.uniyar.ac.ru/jspui/browse?type=author&value=%D0%9B%D0%B8%D0%B1%D0%B0%D0%BD%D0%B8%D0%B9&sort_by=1&order=ASC&rpp=70&etal=0&submit_browse=%D0%9E%D0%B1%D0%BD%D0%BE%D0%B2%D0%B8%D1%82%D1%8
Introduction
No full textВо Введении к первому тому публикации речей Либания на русском языке автор перевода, С. Шестаков, дает подробную биографию оратора. S. Shestakov, a translator of Libanius’ orations into Russian, gives a detailed biography of the orator in the Introduction to the first volume of the Orations.Перевод речей Либания можно найти здесь: http://elar.uniyar.ac.ru/jspui/browse?type=author&value=%D0%9B%D0%B8%D0%B1%D0%B0%D0%BD%D0%B8%D0%B9&sort_by=1&order=ASC&rpp=70&etal=0&submit_browse=%D0%9E%D0%B1%D0%BD%D0%BE%D0%B2%D0%B8%D1%82%D1%8
Appendix II. From Libanius' Letters
No full textВ настоящей работе С. Шестаков, автор русского перевода речей Либания, анализирует письма оратора «к разным лицам административного или литературного мира или частным лицам». Исследователь дает обширные выдержки из некоторых писем (в собственном переводе). In this paper S. Shestakov, the author of Russian translation of Libanius’ orations, analyzes letters of the orator “to different persons of the administrative or the literary world, or to private persons”. The scholar gives extensive excerpts from some letters (in his own translation).Перевод речей Либания можно найти здесь: http://elar.uniyar.ac.ru/jspui/browse?type=author&value=%D0%9B%D0%B8%D0%B1%D0%B0%D0%BD%D0%B8%D0%B9&sort_by=1&order=ASC&rpp=70&etal=0&submit_browse=%D0%9E%D0%B1%D0%BD%D0%BE%D0%B2%D0%B8%D1%82%D1%8
Appendix I. Julian in Libanius' Letters
No full textВ настоящей работе С. Шестаков, автор русского перевода речей Либания, анализирует письма оратора, в которых речь идет об императоре Юлиане II (Отступнике). Исследователь дает обширные выдержки из некоторых писем (в собственном переводе). In this paper S. Shestakov, the author of Russian translation of Libanius’ orations, analyzes letters of the orator, where it is talked of the Emperor Julian II (the Apostate). The scholar gives extensive excerpts from some letters (in his own translation).Перевод речей Либания можно найти здесь: http://elar.uniyar.ac.ru/jspui/browse?type=author&value=%D0%9B%D0%B8%D0%B1%D0%B0%D0%BD%D0%B8%D0%B9&sort_by=1&order=ASC&rpp=70&etal=0&submit_browse=%D0%9E%D0%B1%D0%BD%D0%BE%D0%B2%D0%B8%D1%82%D1%8
Dinamic measurement in spaces of “noise”
No full textШестаков Александр Леонидович, д-р техн. наук, профессор, заведующий кафедрой информационно-измерительной техники, Южно-Уральский государственный университет (г. Челябинск), [email protected]
Свиридюк Георгий Анатольевич, д-р физ.-мат. наук, профессор, заведующий кафедрой уравнений математической физики, Южно-Уральский государственный университет (г. Челябинск),
[email protected]
Худяков Юрий Владимирович, аспирант кафедры уравнений математической физики, Южно-Уральский государственный университет (г. Челябинск), [email protected]. A.L. Shestakov, South Ural State University, Chelyabinsk, Russian Federation,
[email protected]
G.A. Sviridyuk, South Ural State University, Chelyabinsk, Russian Federation,
[email protected]
Yu.V. Hudyakov, South Ural State University, Chelyabinsk, Russian Federation,
[email protected]Ранее была предложена новая концепция «белого шума», под которым понимается производная Нельсона – Гликлиха винеровского процесса. Данный подход распространяется и на другие «шумы», которые в совокупности составляют пространство «шумов». В этих пространствах посредством математической модели измерительного устройства, представленной уравнениями леонтьевского типа, производятся точные динамические измерения «шумов». В качестве примера измерен
«шум», имеющий вид импульса, амплитуда которого является гауссовой случайной
величиной. Приведены точные результаты измерения. The new concept of the «white noise» was proposed by the authors, it is understood
by the Nelson – Gliklikh’s derivative of the Wiener process. This approach extends to
other «noise», which together make up the space of «noise». Precise dynamic measurement
«noise» produced in these spaces through a mathematical model of the measuring
device provided by the equations of Leontief type. As an example, the measured «noise»
having the form a pulse, the amplitude of which is the Gauss random variable. The results of measurements are precise
THE EXCITON LUMINESCENSE UNDER EXCESS ELECTRON DRIFT THROUGH CONDENSED RARE GASES
No full textE. B. Gordon, V. V. Khmelenko and O. S. Rzhevsky. Chem. Phys. Lett.217(5,6), 605, 1994. A. S. Schussler, J. Burghorn, P. Wyder, et al. Appl. Phys. Lett. 77(18),2786, 2000. E. B. Gordon, A. F. Shestakov. Low Temp. Phys. + 27(9/10), 883, 2001.Author Institution: Institute of Problems of Chemical Physics; Kamerlingh Onnes Lab, Leiden UniversityThe intensive VUV emission under excess electrons drift in high ( electric fields through condensed heavy rare gas has been and recently . Our revealed the important role of metastable negative ions formation on the electron's energy distribution function and confirmed the possibility to achieve high yield of excitons (and VUV photons) per electron. Such avalanches development has been experimentally observed at 77K in three-electrodes cell, where the photocathode-grid gap, filled by Ar gas , provided the multiplication of seed electrons number via ionization, the Xe crystal was grown between grid and anode, and the seed electrons were created by cathode irradiation by short laser (266 nm) pulse.The same design was used for the realization of effective and powerful UV emission generator in the regime of self-sustained discharge (without laser initiation)
THERMOLUMINESCENCE OF IMPURITY-HELIUM SOLIDS IMMERSED IN LIQUID HELIUM
No full textAcknowledgement: The work was carried out with support from Russian Foundation for Basic Research (Grant 99-03-33261). E.B. Gordon V. V. Khmelenko, A. A. Pelmenev, E.A. Popov, O.F. Pugachev, A.F. Shestakov, Chem. Phys. 170, 411(1993). R.E. Boltnev, E.B. Gordon, V.V. Khmelenko, I.N. Krushinskaya, M.V. Martyneko, A.A.Pelmenev, E.A. Popov, A.F. Shestakov, Chem. Phy., 189,367 (1994)Author Institution: Institute of Energy Problems of Chemical Physics; Institute of Problems of Chemical PhysicsA solidification of liquid helium around impurity particles injected in its volume results in IHSP (impurity-Helium Solid Phase) , so the particles can be stabilized with inert environment during long time. Particular interest is stabilization of metastable particles. The capture of atoms from discharge allows to save ones at T = 1.5 K during s -time comparable with their lifetime, s. Nevertheless, even small temperature increase ( K) causes the luminescence on the transition. It was explained as thermoactivated association of neighbouring centers of IHSP. or , which partially removes the prohibition because of ``heavy particle . The main part of stabilized nitrogen atoms is in the ground state , so thermoactivated mobility leads to the pair recombination N + N or presents as trace in condensed gas mixture). The results presented in report confirm that heating of IHSP sample causes a blue emission which can be assigned to excited states of or NO
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