251 research outputs found

    COMPUTER BUSINESS SIMULATION AS AN INTERACTIVE FOREIGN LANGUAGE TEACHING TOOL: POTENTIAL FOR APPLICATION IN A HIGHER EDUCATION CURRICULUM

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    The relevance of the chosen topic is due to the need to introduce interactive educational tools in the methodology of teaching foreign language for professional purposes. The objective of this paper is to assess the effectiveness of computer business simulation as an interactive foreign language teaching method in a university curriculum. The article provides the updated classification of educational digital games introduced by the Directorate General for Education and Culture of the European Commission. The implementation of some popular educational computer business-simulations is outlined and their educational value in a university setting is discussed. The important inding of this research is the ability of simulation to encourage students to apply their functional expertise to professional communication in a foreign language

    AN ECLECTIC MODEL OF INTERACTIVE TEACHING PROFESSIONAL FOREIGN LANGUAGE COMMUNICATION TO STUDENTS OF NON-LANGUAGE MAJORS IN THE POSTMETHOD ERA

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    The article reflects on the theoretical and methodological potential for developing a postmethod model of interactive professional foreign language teaching based on the rational consolidation of contextual and didactic principles of the leading methodological systems: behavioral, cognitive, cooperative, learner-centered, integrated, problem-based and intercultural ones by applying innovative Internet, computer and virtual technologies.В статье рассматривается теоретико-методологический потенциал разработки постметодической модели интерактивного обучения профессиональному иностранному языку на основе рациональной консолидации содержательно-дидактических постулатов ведущих методических систем: деятельностной (бихевиористской), когнитивной, кооперативного, личностно-ориентированного, интегрированного, проблемного обучения в диалоге культур, с применением инновационных Интернет, компьютерных и виртуальных технологий

    Learner digital identity development within authentic pedagogy of foreign language acquisition

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    The relevance of the chosen topic is due to the need to develop an authentic or genuine learner identity in the era of intensive digitalization and polyculturalization of society. This study is aimed at analyzing the multiple variety of learner identities in digital space that are developed through the implementation of socially and personally sound interactive contexts and web technologies. The article explores the specificity of digital literacy formation as an essential core of the cognitive behavioral and individual model of authentic pedagogy. As a result of the study, it was revealed that authentic pedagogy as well as linguodidactics can become a conceptual basis for the construction of a genuine and unique digital identity as a new modality of social and professional self-actualization within unforced communicative activity aimed at creating a unique intellectual property. The authors conclude that the self-representation of a unique media image in the foreign language digital realm is implemented by adhering to such essential principles of authentic pedagogy as communication, cognition, prosociality, interactivity and personal freedom

    Business simulation "Virtual hotel" as a method of facilitating profeesional language acquisition in hospitality higher education curriculum

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    The relevance of the chosen topic is due to the need to introduce innovative pedagogical technologies in the process of teaching a foreign language to future specialists in the hospitality industry. The aim of this study is to evaluate the effectiveness of the computer business simulation “Virtual Hotel” in teaching the discipline “Foreign language in the field of professional communication”. The method of this study, along with the general scientific, is the modeling of the educational process, focused on the development of linguistic, socio-cultural and professional competences in the course of teaching a foreign language to future specialists in the hospitality industry.Актуальность выбранной темы обусловлена необходимостью внедрения инновационных педагогических технологий в процесс обучения иностранному языку будущих специалистов индустрии гостеприимства. Целью данного исследование является оценка эффективности компьютерной бизнес-симуляции "Virtual Hotel" в преподавании дисциплины "Иностранный язык в сфере профессиональной коммуникации"

    MODERN TECHNOLOGIES IN INTERACTIVE FOREIGN LANGUAGE TEACHING OF STUDENTS OF A DIRECTION «SERVICE AND TOURISM»

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    В статье рассматриваются возможности применения технологий интерактивного обучения для формирования лингвопрофессиональной коммуникативной компетенции будущих специалистов сферы гостеприимства. В данном контексте представлена классификация современных информационных технологий как средств интерактивного обучения, активизирующих эффективное профессионально ориентированное иноязычное общениеThe article endeavours to research about the potential application of interactive educational technologies for the development of foreign language professional communicative competence of future specialists in the hospitality industry. In this context, this paper presents the updated classification of modern information technologies as interactive educational tools for facilitating effective professionally oriented foreign language communicatio

    RAG-mediated DNA double-strand breaks activate a cell type-specific checkpoint to inhibit pre-B cell receptor signals

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    DNA double-strand breaks (DSBs) activate a canonical DNA damage response, including highly conserved cell cycle checkpoint pathways that prevent cells with DSBs from progressing through the cell cycle. In developing B cells, pre–B cell receptor (pre–BCR) signals initiate immunoglobulin light (Igl) chain gene assembly, leading to RAG-mediated DNA DSBs. The pre–BCR also promotes cell cycle entry, which could cause aberrant DSB repair and genome instability in pre–B cells. Here, we show that RAG DSBs inhibit pre–BCR signals through the ATM- and NF-κB2–dependent induction of SPIC, a hematopoietic-specific transcriptional repressor. SPIC inhibits expression of the SYK tyrosine kinase and BLNK adaptor, resulting in suppression of pre–BCR signaling. This regulatory circuit prevents the pre–BCR from inducing additional Igl chain gene rearrangements and driving pre–B cells with RAG DSBs into cycle. We propose that pre–B cells toggle between pre–BCR signals and a RAG DSB-dependent checkpoint to maintain genome stability while iteratively assembling Igl chain genes

    Effects of N-functional groups on the electron transfer kinetics of VO<sup>2+</sup>/VO<sub>2</sub><sup>+</sup> at carbon:Decoupling morphology from chemical effects using model systems

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    Carbons and nanocarbons are important electrode materials for vanadium redox flow battery applications, however, the kinetics of vanadium species are often sluggish at these surfaces, thus prompting interest in functionalization strategies to improve performance. Herein, we investigate the effect of N-functionalities on the VO2+/VO2+ redox process at carbon electrodes. We fabricate thin film carbon disk electrodes that are metal-free, possess well-defined geometry and display smooth topography, while featuring different N-site distribution, thus enabling a mechanistic investigation of the intrinsic surface activity towards VO2+/VO2+. Voltammetry and electrochemical impedance spectroscopy show that N-functionalities improve performance, with pyridinic/pyrrolic-N imparting the most significant improvements in charge transfer rates and reversibility, compared to graphitic-N. This was further supported by voltammetry studies on nitrogen-free electrodes modified via aryldiazonium chemistry with molecular pyridyl adlayers. Computational modeling using an electrochemical-chemical mechanism indicates that introduction of surface pyridinic/pyrrolic-N can increase the heterogeneous rate constants by approximately two orders of magnitude relative to those observed at nitrogen-free carbon (k0 = 1.29 × 10−4 vs 9.34 × 10−7 cm/s). Simulations also suggest that these N-functionalities play a role in affecting reaction rates in the chemical step. Our results indicate that nitrogen incorporation via basic functional groups offers an interesting route to the design of advanced carbon electrodes for VRFB devices.</p

    Formation of Gold Nanoparticle Self-Assembling Films in Various Polymer Matrices for SERS Substrates

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    Surface-enhanced Raman spectroscopy (SERS) is regarded as a versatile tool for studying the composition and structure of matter. This work has studied the preparation of a SERS substrate based on a self-assembling plasmonic nanoparticle film (SPF) in a polymer matrix. Several synthesis parameters for the SPF are investigated, including the size of the particles making up the film and the concentration and type of the self-assembling agent. The result of testing systems with different characteristics is discussed using a model substance (pseudo isocyaniniodide). These models can be useful in the study of biology and chemistry. Research results contain the optimal parameters for SPF synthesis, maximizing the SERS signal. The optimal procedure for SPF assembly is determined and used for the synthesis of composite SPFs within different polymer matrices. SPF in a polymer matrix is necessary for the routine use of the SERS substrate for various types of analytes, including solid samples or those sensitive to contamination. Polystyrene, polyvinyl alcohol (PVA), and polyethylene are investigated to obtain a polymer matrix for SPF, and various methods of incorporating SPF into a polymer matrix are being explored. It is found that films with the best signal enhancement and reproducibility were obtained in polystyrene. The minimum detectable concentration for the SERS substrate obtained is equal to 10 10 M We prepared a SERS substrate with an analytical enhancement factor of 2.7 104, allowing an increase in the detection sensitivity of analyte solutions of five orders of magnitude
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