Discrete Symmetries on the Light Front and a General Relation Connecting Nucleon Electric Dipole and Anomalous Magnetic Moments

We consider the electric dipole form factor, F_3(q^2), as well as the Dirac and Pauli form factors, F_1(q^2) and F_2(q^2), of the nucleon in the light-front formalism. We derive an exact formula for F_3(q^2) to complement those known for F_1(q^2) and F_2(q^2). We derive the light-front representation of the discrete symmetry transformations and show that time-reversal- and parity-odd effects are captured by phases in the light-front wave functions. We thus determine that the contributions to F_2(q^2) and F_3(q^2), Fock state by Fock state, are related, independent of the fundamental mechanism through which CP violation is generated. Our relation is not specific to the nucleon, but, rather, is true of spin-1/2 systems in general, be they lepton or baryon. The empirical values of the anomalous magnetic moments, in concert with empirical bounds on the associated electric dipole moments, can better constrain theories of CP violation. In particular, we find that the neutron and proton electric dipole moments echo the isospin structure of the anomalous magnetic moments, kappa^n ~ - kappa^p.Comment: 25 pages, 1 figure. Published version. Ref. adde

Formation Of creative abilities of schoolchildren in performing projects based on the Arduino platfor

Research problem: how to increase the effectiveness of the formation of creative abilities of schoolchil-dren in the classroom of robotics in the context of further education. The purpose of the described study is to determine and justify the optimal ways of creating creative abilities for students in robotics classes, on which complex projects based on the Arduino platform are implemented. Methodology and research methods include theories of creative abilities by J. Guildford, C. Taylor, G. Gruber and Ya. A. Ponomarev, methods of analysis, synthesis, abstraction and generalization, pedagogical observa-tion, as well as analysis of activity products. The main results of the study show the productivity of pro-ject activities using modern robotic kits to form the creative abilities of students. In addition, they in-clude substantiating the significance of the case method, reference circuits based on a given structure and test cards in the formation of creative abilities of students in robotics classes when performing technical research projects based on the Arduino platform. The scientific novelty of the research results consists in the fact that for the first time the existing pedagogical experience and perspective opportuni-ties for the formation of creative abilities of students in robotics classes while performing technical re-search projects based on the Arduino platform are examined and substantiated. Theoretical and practi-cal significance of the results. The theoretical significance consists in supplementing pedagogical knowledge with ideas about modern methods and techniques for creating creativity among schoolchil-dren – cases, test cards and reference schemes based on a given structure. The practical significance of the study lies in the fact that a technique has been developed that can be useful in the formation of cre-ative abilities in conditions of additional education. Substantive findings of the study: creative abilities are examined and their essence is revealed, the pedagogical potential of the Arduino platform is de-scribed in the formation of creative abilities among students, on the one hand, and on the other hand, in the possibilities of working on technically and commercially significant projects. The pedagogical poten-tial of the Arduino platform lies in the great opportunities for creative innovation in robotics lessons, as well as in the combination of programming fundamentals with engineering activities, during which ap-plied technical problems are solved.Проблема исследования: как повысить эффективность формирования креативных способностей школьников в условиях дополнительного образования. Цель описываемого исследования состоит в том, чтобы обосновать эффективность применения платформы Arduino для целей формирования креативных способностей школьников в условиях дополнительного образования. Методология и методы исследования включают теории креативных способностей Дж. Гилфорда, К. Тейлора, Г. Грубера и Я. А. Пономарева, методы анализа, синтеза, абстрагирования и обобщения, педагогического наблюдения, а также анализа продуктов деятельности. Основные результаты исследования показывают продуктивность проектной деятельности с использованием современных робототехнических наборов для формирования креативных способностей обучающихся. Кроме того, они включают обоснование значимости кейс-метода, опорных схем на основе заданной структуры и тест-карт в формировании креативных способностей школьников на занятиях робототехникой при выполнении технических исследовательских проектов на базе платформы Arduino. Научная новизна результатов исследования состоит в том, что впервые рассмотрен и обоснован имеющийся педагогический опыт и перспективные возможности формирования креативных способностей школьников на занятиях робототехникой при выполнении технических исследовательских проектов на базе платформы Arduino. Теоретическая и практическая значимость результатов. Теоретическая значимость состоит в дополнении педагогических знаний идеями о современных методах и методиках формирования креативности у школьников – кейсах, тест-картах и опорных схем на основе заданной структуры. Практическая значимость исследования состоит в обосновании возможности использования платформы Arduino в условиях дополнительного образования школьников, которое обусловливает не только развитие креативных способностей, но и навыков инженерно-конструкторской деятельности и участвует в формировании будущей специализации обучающегося. Содержательные выводы исследования: рассмотрены креативные способности и выявлена их сущность, описан педагогический потенциал платформы Arduino в формировании у обучающихся креативных способностей, с одной стороны, а с другой стороны, в возможностях работы над технически и коммерчески значимыми проектами. Педагогический потенциал платформы Arduino состоит в широких возможностях для творческой инновационной деятельности на уроках робототехники, а также в сочетании основ программирования с инженерно-конструкторской деятельностью, в ходе которой решаются прикладные технические задачи

Corruption counteractionin the publicservice of Russia

This article discussed the problem of corruption in the sphere of civil servants, considered the roots of this phenomenon, its causes and possible solutions to the problem of corruption in the public service.В данной статье затронуты проблемы распространения коррупции в среде государственных гражданских служащих, рассматриваются корни данного явления, его причины, а также возможные пути решения проблемы коррупции в системе государственной службы

Emergency control algorithm for maintaining power stability based on newton's method

The problem of stability boundary evaluation for the current power system state is of paramount importance for power system operation. In addition, maintaining stability after large scale disturbances has come to the fore in recent years. This paper presents the algorithm, which allows us to both evaluate the stability boundary of a power system and to calculate emergency control actions for maintaining stability in the case of blackout. The algorithm is based on Newton's method for solving optimization problems. There are a number of emergency actions algorithms in literature, but most of them use heuristic rules. On the contrary, the proposed method has a reasonable analytical background. Thus, having an adequate power system model, the proposed method is able to calculate more accurate control actions. The paper demonstrates the very basic idea of the approach with the simplest example. © 2014 WIT Press.International Journal of Safety and Security Engineering;International Journal of Sustainable Development and Planning;WIT Transactions on Ecology and the Environmen

Electric Dipole Moments of Leptons in the Presence of Majorana Neutrinos

We calculate the two-loop diagrams that give a non-zero contribution to the electric dipole moment d_l of a charged lepton l due to possible Majorana masses of neutrinos. Using the example with one generation of the Standard Model leptons and two heavy right-handed neutrinos, we demonstrate that the non-vanishing result for d_l first appears in order O(m_l m_\nu^2 G_F^2), where m_\nu is the mass of the light neutrino and the see-saw type relation is imposed. This effect is beyond the reach of presently planned experiments.Comment: 13 page

Sensitivity of CPT Tests with Neutral Mesons

The sensitivity of experiments with neutral mesons to possible indirect CPT violation is examined. It is shown that experiments conventionally regarded as equivalent can have CPT reaches differing by orders of magnitude within the framework of a minimal CPT- and Lorentz-violating extension of the standard model.Comment: 4 pages REVTeX, published in Physical Review Letter

Creative Imagination Development of School Students in Robotics Classes

The article describes the experience of developing creative imagination of school students in robotics extracurricular activities. The article presents the results of the education program based on the use of LEGO WeDo 2.0 kit that increases motivation of students to solve and make an in-depth study of high-complexity tasks and helps to build logical chains.Представлен опыт развития творческого воображения у школьников на занятиях внеурочной деятельности по робототехнике. Изложены результаты программы обучения с использованием набора LEGO WeDo 2.0, работа с которым повышает мотивацию учеников к углубленному изучению и решению задач повышенного уровня сложности, помогает правильно выстраивать логические цепочки

Large-scale Samples Irradiation Facility at the IBR-2 Reactor in Dubna

The irradiation facility at the beam line no.3 of the IBR-2 reactor of the Frank Laboratory for Neutron Physics is described. The facility is aimed at irradiation studies of various objects with area up to 800 cm$^2$ both at cryogenic and ambient temperatures. The energy spectra of neutrons are reconstructed by the method of threshold detector activation. The neutron fluence and $\gamma$ dose rates are measured by means of alanine and thermoluminescent dosimeters. The boron carbide and lead filters or $(n/\gamma)$ converter provide beams of different ratio of doses induced by neutrons and photons. For the lead filter, the flux of fast neutrons with energy more than 0.1 MeV is $1.4 \cdot 10^{10}$ \fln and the neutron dose is about 96\% of the total radiation dose. For the $(n/\gamma)$ converter, the $\gamma$ dose rate is $\sim$500 Gy h$^{-1}$ which is about 85\% of the total dose. The radiation hardness tests of GaAs electronics and materials for the ATLAS detector to be put into operation at the Large Hadron Collider (LHC) have been performed successfully at this facility