Prospects for Digitalization of Public Administration Processes

The subject of consideration in this article are the state and prospects for the digitalization of public administration in modern Russia. The scale and speed of changes in all spheres of public relations caused by digital technologies is unprecedented, these changes were especially accelerated during the Covid-19 pandemic. They affect these changes and processes of public administration, at the same time, in this area there are differences from the commercial sector, where such a phenomenon as the “digital economy” has arisen and is developing. The task of the modern state is to create digital services and platforms aimed at more rapid and high-quality satisfaction of the needs of citizens and business, that is, in essence —to generate a new type of public goods in the form of digital public services. The article considers the prospects for the development of such processes

Manipulating magnetism and conductance of an adatom-molecule junction on metal surfaces: ab initio study

The state of the art ab initio calculations reveal the effect of a scanning tunnelling microscopy tip on magnetic properties and conductance of a benzene-adatom sandwich on Cu(001). We concentrate on a benzene-Co system interacting with a Cr tip. Our studies give a clear evidence that magnetism and conductance in molecule-adatom junctions can be tailored by the STM tip. Varying the tip-substrate distance the magnetic moment of the Co adatom can be switched on/off. The interplay between spin-polarized electron transport through the junction and its magnetic properties is demonstrated. A spin-filter effect in the junction is predicted.Comment: 4 pages, 3 figure

Вплив легуючих добавок на структуру і магнітні властивості порошкових матеріалів на основі заліза

В роботі досліджено вплив легуючих добавок олова на структуру та магнітні властивості порошкових матеріалів на основі заліза. Показано, що введення олова до залізного порошку в кількості 2–10 (мас.)% дозволяє змінювати магнітні властивості матеріалу у постійних та змінних полях. При цьому при кількості олова 6–10 %(мас.) спостерігається збільшення магнітної індукції як у постійному так і у змінному полях на 0,2–0,4 Тл у порівнянні з чистим залізом, та зменшення магнітних втрат у змінному полі при В = 1 Тл до 11–15 Вт/кг, при тому, що для чистого заліза вони досягають 25 – 30 Вт/кг при тій самій індукції. Покращення магнітних властивостей матеріалу, зі збільшенням легуючої добавки, пов’язане з підвищенням густини зразків, а також з утворенням інтерметалідів заліза з оловом по границях зерен, що приводить до підвищення електроопору матеріалу та, відповідно, до зменшення магнітних втрат. Таким чином, порошковий матеріал системи залізо – олово може бути рекомендований для виготовлення порошкових магнітопроводів для деталей електротехніки, які використовуються у змінних полях промислової частоти.In the work the influence of the additives of tin on structure and magnetic properties of powder materials on the basis of iron is investigated. The addition of tin in an iron powder of amount 2-10 % wt. is shown, that allows to change magnetic properties of a material in constant and variable fields. Thus, at quantity of tin 6-10 % wt. the increase of a magnetic induction is observed, both in constant and in variable fields, on 0,2-0,4 T in comparison with pure iron, and reduction of magnetic losses in a variable field at B = 1 T up to 11 - 15 Watt/kg, that for pure iron they achieve 25 - 30 Watt/kg at the same induction. The improvement of magnetic properties of a material, with increase of the additive, is connected with increase of density of samples, and also with formation intermetalls of iron with tin on borders of grains, that results in increase electrical resistance of a material and, accordingly, to reduction of magnetic losses. Thus, a powder material of system iron-tin can be recommended for manufacturing powder micro-engines for electrotechnical details, which are used in variable fields of industrial frequency

New Statistical Methods For Systematizing The Nuclei Fission Fragments: Post-Scission Approach

A new statistical method for systematizing the nuclei fission fragments, investigation of their mass and charge spectra and neutron fission parameters has been suggested. In proposed method, the mass and charge yields of nucleons are determined from the equilibrium conditions of the nuclear fragments post-fission ensemble. Here we consider protons and neutrons of different fragments as statistically non-equivalent. The abilities of the proposed statistical method for explanation of the U, Pa, Th, Ac and Ra post-fission fragments ordering and neutron emission function calculation have been demonstrated.Comment: 11 pages, 5 figure

Theoretical analysis of magnetic coupling in sandwich clusters V_n(C_6H_6)_{n+1}

The mechanism of ferromagnetism stability in sandwich clusters V$_n$(C$_6$H$_6$)$_{n+1}$ has been studied by first-principles calculation and model analysis. It is found that each of the three types of bonds between V and benzene (Bz) plays different roles. V 3d$_{z^2}$ orbital, extending along the molecular axis, is weakly hybridized with Bz's HOMO-1 orbital to form the $\sigma$-bond. It is quite localized and singly occupied, which contributes 1$\mu_B$ to the magnetic moment but little to the magnetic coupling of neighboring V magnetic moments. The in-plane d$_{x^2-y^2}$, d$_{xy}$ orbitals are hybridized with the LUMO of Bz and constitute the $\delta$-bond. This hybridization is medium and crucial to the magnetic coupling though the $\delta$ states have no net contribution to the total magnetic moment. d$_{xz}$, d$_{yz}$ and HOMO of Bz form a quite strong $\pi$-bond to hold the molecular structure but they are inactive in magnetism because their energy levels are far away from the Fermi level. Based on the results of first-principles calculation, we point out that the ferromagnetism stability is closely related with the mechanism proposed by Kanamori and Terakura [J. Kanamori and K. Terakura, J. Phys. Soc. Jpn. 70, 1433 (2001)]. However, the presence of edge Bz's in the cluster introduces an important modification. A simple model is constructed to explain the essence of the physical picture.Comment: 16 pages, 7 figure

Особенности компьютерной интерпретации результатов исследования физиологического состояния человека методом газорозрядной визуализации

Розглянуто застосування методу газорозрядної візуалізації для відстеження змін у фізіологічному стані працівника з метою створення сприйнятливих умов для його роботи та відпочинку. Експериментально встановлено, що після 12-годинного фізичного навантаження відбувається пригнічення як загального стану організму, так і його окремих органів. Надані рекомендації щодо збільшення діапазону відображення зображень до рівня, що забезпечуватиме необхідну для завершення центрування контрастність. Виконано аналіз виявлення пригнічення чи збудження організму людини в цілому та її окремих органів – серця, нервової системи та нижніх відділів хребта.Purpose. Establishment of reasons of errors at diagnostics of the physiology state of human, that related to computer interpretation of the got gas-unloading luminescence and grant of recommendations in relation to their removal. Design/methodology/approach. A device for gas-unloading visualization allows to register as digital representations and in number to estimate luminescence that arises up near-by the surface of object. The stimulated is investigated them by the electromagnetic field and gas digit emission of photons, electrons and other particles of biological object. Basic diagnostic information turns out from descriptions of luminescence that is the spatially up-diffused group of areas of different brightness. Further mathematical treatment of the got results by means of the special software allows to draw conclusion about current physiology status of human. But there is probability of erroneous diagnostics, that is related to complication of computer interpretation of the obtained data of one experimental under act of different factors environment, and also physiology and psychological loading. Findings. Diagnostic procedure consists in got primary information as the fixed snapshots of luminescence of fingers. Such luminescence binds descriptions of separate zones of fingers of hands to the functional state of organs and systems of organism. Thus the brightness of luminescence of gas digit gives an idea about the state of health of human on the whole, and diagnostic information after separate organs and systems is carried by a perimeter and area of luminescence. A most problem during computer interpretation of the obtained data is presented by the change of brightness of luminescence of gas digit investigated under act of external factors. It is necessary to notice that initial diagnostic information can differ not only after a contour and brightness for concrete everybody but also to change for one human in accordance with the change of factors that influenced on her. Originality/value. Comparison of job of device of gas-unloading visualization of "Strimer" performances to and after the indicated physical activity (on an example twenty years old girl) shows that physical activity resulted in oppression of general of organism. Thus a heart, nervous system and bottom departments of backbone, had most deviation from the normal functioning, that it is related to the specific of work experimental. It is recommended to increase the range of reflection of images to the level that will provide a necessary for completion of centring contrast, to conduct an analysis, whereupon to execute a final analysis for the exposure of oppression or excitation of the systems of organism.Рассмотрено применение метода газоразрядной визуализации для отслеживания изменений в физиологическом состоянии работника с целью создания благоприятных условий для его работы и отдыха. Экспериментально установлено, что после 12-часовой физической нагрузки происходит угнетение как общего состояния организма, так и его отдельных органов. Предоставлены рекомендации относительно увеличения диапазона отображения изображений до уровня, который будет обеспечивать необходимую для завершения центрирования контрастность. Выполнено анализ выявления угнетения или возбуждения организма человека в целом и отдельных его органов – сердца, нервной системы и нижних отделов позвоночника

T-systems and Y-systems in integrable systems

The T and Y-systems are ubiquitous structures in classical and quantum integrable systems. They are difference equations having a variety of aspects related to commuting transfer matrices in solvable lattice models, q-characters of Kirillov-Reshetikhin modules of quantum affine algebras, cluster algebras with coefficients, periodicity conjectures of Zamolodchikov and others, dilogarithm identities in conformal field theory, difference analogue of L-operators in KP hierarchy, Stokes phenomena in 1d Schr\"odinger problem, AdS/CFT correspondence, Toda field equations on discrete space-time, Laplace sequence in discrete geometry, Fermionic character formulas and combinatorial completeness of Bethe ansatz, Q-system and ideal gas with exclusion statistics, analytic and thermodynamic Bethe ans\"atze, quantum transfer matrix method and so forth. This review article is a collection of short reviews on these topics which can be read more or less independently.Comment: 156 pages. Minor corrections including the last paragraph of sec.3.5, eqs.(4.1), (5.28), (9.37) and (13.54). The published version (JPA topical review) also needs these correction