Short-Range Order in Fe-Rich Fe-Cr Alloys as Revealed by M\"ossbauer Spectroscopy

Distribution of Cr atoms in Fe_{100-x}Cr_x alloys with x \le 25 within the first two coordination shells, 1NN-2NN, around probe 57Fe atoms was studied by means of the M\"ossbauer Spectroscopy. Clear evidence was found that the distribution is characteristic of a given atomic configuration. Only the configurations with Cr atoms situated in 2NN exhibit a quiasi-random distribution, while those with Cr atoms present in 1NN shell and those with Cr atoms in both shells is evidently not random showing clastering or anticlastering features. These findings are novel and much more complete than the up-to-date knowledge according to which there is an inversion of the short-range order parameter at x = 11. The inversion in the present study was found only for the configuration with one Cr atom in 1NN. On average, Cr atoms are distributed almost randomly within the 1NN-2NN volume for x \eq ~10, and do cluster for larger x.Comment: 4 pages and 4 figure

Quality of education assessment by students

В статье автор рассуждает о термине «качество образования», рассматривает различные подходы к его трактовке. Особое внимание уделено пониманию термина «качества образования» с позиции обучающихся.In the article the author gives the term “quality of education” and considers different approaches to its interpretation. The special attention is attended to understanding of the notion “quality of education” from the students’ points of view

Studying temporal variability of GRS1739-278 during the 2014 outburst

We report a discovery of low-frequency quasi periodic oscillation at 0.3-0.7 Hz in the power spectra of the accreting black hole GRS1739-278 in the hard-intermediate state during its 2014 outburst based on the ${\it NuSTAR}$ and Swift/XRT data. The QPO frequency strongly evolved with the source flux during the NuSTAR observation. The source spectrum became softer with rising QPO frequency and simultaneous increasing of the power-law index and decreasing of the cut-off energy. In the power spectrum, a prominent harmonic is clearly seen together with the main QPO peak. The fluxes in the soft and the hard X-ray bands are coherent, however, the coherence drops for the energy bands separated by larger gaps. The phase-lags are generally positive (hard) in the 0.1-3 Hz frequency range, and negative below 0.1 Hz. The accretion disc inner radius estimated with the relativistic reflection spectral model appears to be $R_{\rm in} < 7.3 R_{\rm g}$. In the framework of the relativistic precession model, in order to satisfy the constraints from the observed QPO frequency and the accretion disc truncation radius, a massive black hole with $M_{\rm BH} \approx 100$M$_\odot$ is required.Comment: 15 pages, 12 figures; accepted for publication in MNRA

APPROPRIATION AS A STRATEGY OF INTERSEMIOTIC "TRANSLATION"

Aim. To study approbation as a strategy of intersemiotic translation, evaluation of transformations and polymodal means of transmitting a conceptual picture of the world reflected in the original text - Pushkin&rsquo;s fairy tale poem &ldquo;Ruslan and Lyudmila&rdquo;. The center of research issues is an analysis of the boundaries of permissible transformations of intersemiotic translation.Methodology. The material is the verbal text of A.S. Pushkin's fairy tale poem &ldquo;Ruslan and Lyudmila&rdquo; and polymodal implementations of different years: the films &ldquo;Ruslan and Lyudmila&rdquo; of 1914, 1938 and 1972 and the animated film &ldquo;Ruslan and Lyudmila: Reloading&rdquo; of 2018. The total volume of the empirical base is 4 hours 50 minutes of screen time. The work applies general scientific methods of observation of factual material, analysis, synthesis, generalization and abstraction, as well as quantitative analysis, description and linguistic methods of discursive, stylistic and comparative analysis.Results. Comparison of the monomodal verbal text of the original &ldquo;Ruslan and Lyudmila&rdquo; by A.S. Pushkin with the polymodal audio-video-verbal text &ldquo;Ruslan and Lyudmila: Reloading&rdquo; in 2018 reveals distortion and alienation as the main strategies of &ldquo;adaptation based on&hellip;&rdquo;. Differences in the character composition, storyline, speech and behavioral stereotypes of characters, substitution of the author&rsquo;s text, distortion of the author&rsquo;s pragmatic task were found.Research implications. The conducted research reveals the fundamental impossibility of identifying appropriation as a result of intersemiotic &ldquo;translation&rdquo;, being an experience of another form of intercultural communication approaching a linguistic and cultural war. The devaluation of the author and the deformation of the original text allow us to formulate the thesis about the unacceptability of appropriation in intersemiotic translation as the destruction of the original text and linguistic and cultural identification, violation of authenticity and ethics of translation aimed at discrediting cultural heritage.</html

Biometric Authentication Based on Electrocardiogram

The life of modern society is impossible without trust. To ensure trust in the digital world, various encryption algorithms and password policies are used. Passwords are used in a variety of applications from banking applications to email. The advantages of passwords include ease of use and widespread distribution. Forgotten password can be restored or changed. Password weaknesses are largely related to the human factor. Many users use passwords such as “1234” or “qwerty,” and they are also willing to share passwords with friends and colleagues. Vulnerabilities are also associated with software and hardware manufacturers. Many Wi-Fi routers preset very simple passwords, which many users leave unchanged. There are questions for manufacturers of mobile applications. Due to the imperfection of their software, personal data of users often leak. Due to the prevalence of social networks, new authentication methods have appeared. On many websites, you can use accounts from Facebook  or Gmail.com for authentication. If hackers manage to break into large IT vendors, then millions of accounts will be leaked. Many common password problems can be overcome with biometric identification. In particular, biometric data are very difficult to fake; they usually do not change over time. Widespread methods of biometric identification, such as fingerprinting, retina recognition, and voice recognition have various vulnerabilities unfortunately

DIGITAL EDUCATIONAL ENVIRONMENT AS A TOOL OF SYSTEM CHANGES IN THE TEACHER’S PROFESSIONAL ACTIVITY

Purpose: Social and cultural prerequisites of Russia’s transition to an open information society have predetermined new requirements for graduates of modern educational organizations, ready for communicative activities in a digital educational environment. Informatization of education is characterized by increasing virtualization of the educational process and, as a consequence, the predominance of fragmented thinking, and increase in the gap between traditional and innovative educational technologies. Methodology: The basis of the digital educational environment in the context of the use of knowledge management technologies can be specialized knowledge management systems that combine knowledge of related scientific disciplines, which should provide integration, accumulation, and support, as well as the organization of access to knowledge of the educational environment. A distinctive feature of the development of mankind at the present stage is the transition to information society in which information and information processes are becoming one of the most important components of human life and society. Result: The development of the global process of informatization of society leads to the formation of not only the new information environment for people but also new, information way of their life and professional activities. Many researchers as the most acute problem of modern education called the mismatch of software, including for educational purposes, to high technical characteristics of computers, resulting in extremely low efficiency of computer use in training. Critically assessing the effectiveness of the existing software of the educational process and the ways of its development, we see the prospects for a radical change in the situation in the orientation to the use of knowledge management technologies that use software products that can be changed, adapting to the needs of the user and, in particular, to the didactic tasks of training. Applications: This research can be used for universities, teachers, and students. Novelty/Originality: In this research, the model of Digital Educational Environment as a Tool of System Changes in the Teacher’s Professional Activity is presented in a comprehensive and complete manner

Evaluation of the professional aptitude of a student for internship at the enterprise

The competences declared by educational standards and the labor functions declared by professional standards for compliance with each other are analyzedПроанализированы компетенции, заявленные образовательными стандартами и трудовые функции, заявленные профессиональными стандартами на предмет соответствия друг друг