Isoperiodic deformations of the acoustic operator and periodic solutions of the Harry Dym equation

We consider the problem of describing the possible spectra of an acoustic operator with a periodic finite-gap density. We construct flows on the moduli space of algebraic Riemann surfaces that preserve the periods of the corresponding operator. By a suitable extension of the phase space, these equations can be written with quadratic irrationalities.Comment: 15 page

Concerning the networking interaction experience of teachers and students of Pedagogical University

The purpose of the research is to identify the possibilities for the formation knowledge and practical skills related to the use of the professional activity of software and network resource of teaching communities in the pedagogical sphere.Methods. The methods involve the analysis of the literary sources, regulatory documents, Internet resources within the researched problem; an analysis of the practical experience of teachers of secondary schools, work of high school teachers and establishment of training teachers on the research problem; the experimental work and monitoring the learning process. Results. The process of teachers’ training inYaroslavl, in particular preparation of students-biologists at the Yaroslavl State Pedagogical Universityis reflected. Activity of network pedagogical community of Yaroslavl is considered as a platform for network interaction; the analysis of such platform, use of its resources, and also conversations with subject teachers and students have shown that the given electronic and communication resources cause a great interest for practicing teachers and future experts, however, they not always possess necessary knowledge and abilities concerning its operation. Scientific novelty. The author describes in detail the process of forming a competence of networking of professional interaction in terms of its methodological support that is relevant to the educational process, both in the high school, and post-graduate education. Practical significance. The research implementations can be useful while developing specific guidelines to explain the content and methodology of the training network of professional interaction with examples of practicing teachers and students of Pedagogical University– future teachers of biology. The article is addressed to researchers, dealing with networking, specialists of teaching service centers (institutions) of educational development, the practicing subject teachers and teachers of high school Цель изложенного в статье исследования – выявить возможности формирования у действующих преподавателей и студентов педагогических вузов знаний и практических умений, связанных с применением в профессиональной деятельности программных средств и ресурсов сетевых педагогических сообществ. Методы исследования: анализ литературных источников, содержания нормативных документов и наполнения интернет-ресурсов; обобщение практического опыта учителей общеобразовательных школ, педагогов высшей школы, сотрудников учреждений повышения квалификации педагогических работников; экспериментально-опытная работа; наблюдение учебного процесса. Результаты. Отрефлексирован процесс обучения педагогов в г. Ярославле, в частности подготовка студентов-биологов в Ярославском государственном педагогическом университете. В качестве площадки для сетевого взаимодействия рассмотрена деятельность сетевого педагогического сообщества Ярославля, анализ использования ресурсов которого, а также беседы с учителями-предметниками и студентами показали, что данные электроннокоммуникационные ресурсы вызывают большой интерес у практикующих и будущих специалистов, однако они не всегда обладают необходимыми знаниями и умениями относительно их эксплуатации. Научная новизна. Подробно описан процесс формирования компетенции сетевого профессионального взаимодействия с позиций его методического сопровождения, что весьма актуально для образовательного процесса как высшей школы, так и последипломного образования. Практическая значимость исследования заключаются в разработке конкретных методических рекомендаций, раскрывающих содержание обучения сетевому профессиональному взаимодействию учителей-предметников и студентов педагогического вуза. Статья адресована исследователям, занимающимся проблемой сетевого взаимодействия, специалистам методических служб центров (институтов) развития образования, а также школьным учителям и педагогам высшей школы

Electron-transfer initiated nucleophilic substitution of thiophenolate anion by 1-chloro-substituted 4-(thiazol-2-ylazo)naphthalenes

In this work, the electrochemical transformation of 5-chloro-2-[(4-chloronaphthalen-1-yl)azo]thiazoles (A) into the corresponding radical anion A·− and its subsequent reaction with diphenyldisulfide (PhSSPh) was studied. It was found that the primarily generated azo anion radical A·− is able to initiate an electron transfer process which converts the disulfide into its thiolate anion PhS−. This anion was subsequently able to substitute the Cl- and H-groups by phenylmercapto moieties in the starting azo compound A. The structures of the phenylmercapto-substituted azo compounds thus generated were confirmed by thin-layer chromatography and mass spectrometry using independently prepared compounds as references

Features of digital writing as a language activity in the context of modern online communication

The article focuses on digital writing, which intrudes on the domain of “live” interaction, largely replacing it and manifestating its specific language features. Modern online communication depends on many factors: the accessibility of the media platforms; forms of written online communication (official / unofficial); type of communication. Everyday digital written communication based on Internet channels leads to the fact that not only the conditions of written speech production are changed, but also the perception of the written text, namely, both writing and reading skills alter. With the advent of novel means of interaction such as the Internet, there has been a lot of research and widespread discussion of how digital media influence the change in the written form of communication. The article summarises the features observed on lexical, syntactic, punctuation and graphic levels

BI TOOLS TO SUPPORT DECISION-MAKING FOR LEADERS OF HIGHER AND MEDIUM LEVELS WITH SAS SOLUTION (EXPERIENCE VTB24)

The article introduces the project of implementing a class BI system from SAS - SAS Visual Analytics to the financial department of VTB24 with the aim to show how banks solve the problem of improving information and analytical decision support. The role of business intelligence systems in the decision-making process is described, the bank's problems in building the data warehouse and decision-making are revealed, the architecture of the initial and target solution is described, the bank's needs are studied, the bank's requirements for automated reports are formed, and reports are built