Closed Abrikosov Vortices in a Superconducting Cylinder

The new type of solutions of the London equation for type-II superconductors is obtained to describe the ring-shaped (toroidal) Abrikosov vortices. The specific feature of these solutions is the self-consistent localization of both the supercurrent and the magnetic field, enabling one to construct compact magnetic structures inside a superconductor. The torus vortex contraction caused by the vortex instability leads to the destruction of the Cooper pairing and the formation of a normal electron stream in the vicinity of the torus axis. The thermodynamic condition for the excitation of a small closed vortex by a bunch of charged particles contains the fine-structure constant as a determining parameter.Comment: LaTex using revtex, 12 pages. 5 Figures available upon request from [email protected] Accepted for publication in Physica

НОВАЯ МЕТОДОЛОГИЯ ЭКСПЕРТИЗЫ БЕЗОПАСНОСТИ И КАЧЕСТВА ЛЕКАРСТВЕННЫХ СРЕДСТВ И БИОЛОГИЧЕСКИ АКТИВНЫХ ДОБАВОК

The aim of the article is a new methodology based on a combination of nuclear magnetic resonance spectroscopy, mass spectrometry and spectroscopy in the near infrared region for the analysis of quality of medicines and dietary supplements and identifying of their counterfeits.Показаны возможности использования новой методологии, основанной на комбинации методов спектроскопии ядерного магнитного резонанса, масс-спектрометрии и спектроскопии в ближней инфракрасной области для качественного и количественного анализа лекарственных средств и биологически активных добавок

Assay of the Composition of Perftoran by NMR Spectroscopy

A new method for assaying the main components of Perftoran formulation based on 1H and 19F NMR spectroscopy was developed. The method was developed for inclusion in the Manufacturer’s Pharmacopeia Article for Perftoran. © 2016, Springer Science+Business Media New York

БЫСТРЫЙ СКРИНИНГ СОДЕРЖАНИЯ ФЛАВОНОИДОВ В РАСТИТЕЛЬНОМ СЫРЬЕ МЕТОДОМ СПЕКТРОСКОПИИ ЯМР 1Н

Assessing the prospects of various types of plant biomass for the extraction of biologically active substances requires the development of simple and rapid methods for measuring their content in raw materials. A new approach for measuring the content of various flavonoids groups in plant extracts using 1H NMR spectroscopy has been developed, which allows to characterize the resource capabilities of the raw material and study the effects on their composition different environmental factors without complex sample preparation and standard samples.Оценка перспективности различных видов растительной биомассы для извлечения биологически активных веществ (БАВ) требует разработки простых и быстрых методов измерения их содержания в сырье. Разработан новый подход к измерению содержания различных групп флавоноидов в растительных экстрактах методом спектроскопии ЯМР 1Н, позволяющий при минимальной пробоподготовке без использования стандартных образцов характеризовать ресурсные возможности сырья и изучать влияние на его состав сортовых, климатических и иных экологических факторов

ФОРМИРОВАНИЕ НОВОЙ СОЦИАЛЬНОЙ РЕАЛЬНОСТИ В УСЛОВИЯХ ВЫЗОВОВ ПРОЦЕССОВ ИНФОРМАТИЗАЦИИ

The article studies the specifics of the information society, which is formed indeveloped countries as a result of the introduction of information and communication technologies and the processes of informatization taking place in modern technogenic society. Informatization is considered in the work as the most important condition for creating a new social reality; identified positive and negative trends in the formation of this reality.В статье изучается специфика информационного общества, которая в развитых странах оформляется как результат внедрения информационно-коммуникационных технологий и происходящих в современном техногенном социуме процессов информатизации. Эти процессы исследованы в работе как ключевые вызовы современности, выступающие в качестве детерминант формирования новой социальной реальности; устанавливаются позитивные и негативные тенденции формирования этой новой социальной реальности

Physicochemical Properties and Performance Characteristics of Urea Greases Based on Group I Mineral Base Oils

Abstract: A comprehensive study of urea greases obtained on the basis of Group I distillate oils, which have a viscosity in the range from 24.4 to 342.0 mm2/s at 40°C, has been carried out. The results obtained have made it possible to reveal the dependence of various physicochemical parameters of greases (dropping point, ultimate strength, colloidal stability, wear rate) on the viscosity of the base oil and the structure of diurea used as a thickener. The revealed relations allow prediction of the properties of greases at the stage of selecting the initial components. © 2020, Pleiades Publishing, Ltd

Possibilities of low-field NMR spectrometers in screening the content of medicinal substances

[No abstract available

Intercultural Communication and Dialogue of Ethnic Cultures in the Context of Digitalization of Society

The article examines the influence of cross-cultural communication tools, especially digital technologies, on the dialogue of ethnic cultures, and it analyzes the ethnopolitical concepts of multiculturalism and ethnopluralism. Using the concepts of U. Kimlik, Ch. Kukutas as an example, an attempt is made to identify the philosophical foundations on which multiculturalism strategies are based. When considering the concepts of ethnopluralism, the philosophical basis of which is the axioms of the free society of P. Feyerabend, the questions that need to be resolved are revealed. The article considers the prospects for the impact of the digital revolution on culture and its ethnic components through the study of the levels of interaction between ethnic identity and digitalization of society. The dialogue of ethnic cultures is analyzed from the point of view of information flow. It is concluded that the strategy of multiculturalism in a digital society is losing ground and giving way to ethnopluralism