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Tytuł:
Dynamic engagement in second language computer-mediated collaborative writing tasks: Does communication mode matter?
Autorzy:
Aubrey, Scott
Powiązania:
https://bibliotekanauki.pl/articles/2051499.pdf
Data publikacji:
2022-03-21
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
dynamic engagement
affective engagement
cognitive engagement
computer-mediated tasks
collaborative writing
Opis:
This study takes a dynamic approach to investigating engagement, examining fluctuations in cognitive-affective variables at regular time intervals during online collaborative second language (L2) writing tasks. Using online conference software and online editing software, 16 university students who use English as an L2, completed two collaborative problem-solution L2 writing tasks in two communication modes: video-chat and text-chat. After each task, learners viewed videos of their performances in 12 three-minute segments and were asked to rate their engagement on two scales (interest, focus). They were then interviewed about their attributions for fluctuations in their ratings. Group-level analysis revealed that learners experienced significantly higher focus and interest during tasks performed in video-chat mode than text-chat mode. This was contrasted with an analysis from a dynamic perspective, which produced a more nuanced picture of individual engagement trajectories during the tasks. Dynamic patterns of engagement fell into either moderately steady, increasing, decreasing, or rollercoaster pattern categories. A content analysis of 32 interviews revealed four factors that accounted for changes in engagement during tasks: task design (e.g., task familiarity), task process (e.g., instances of collaboration), task condition (e.g., communication mode), and learner factors (e.g., perceptions of proficiency).
Źródło:
Studies in Second Language Learning and Teaching; 2022, 12, 1; 59-86
2083-5205
2084-1965
Pojawia się w:
Studies in Second Language Learning and Teaching
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model of line-of-sight ultraviolet propagation
Autorzy:
Li, B.
Wang, Hongbo
Mao, Z.
Dong, Z.
Zhang, X.
Powiązania:
https://bibliotekanauki.pl/articles/174219.pdf
Data publikacji:
2014
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
ultraviolet communication
bipyramid model
scattering characteristic
line-of-sight (LOS) communication mode
Opis:
The traditional line-of-sight ultraviolet model cannot serve better for link performance study for the reason that the scattering characteristic is often ignored in the modelling process. Therefore, a line-of-sight ultraviolet bipyramid model in combination with transceiver full beam angles and geometrical relationship of the transceiver field of view intersection is established. The theoretical rationality of the bipyramid model in comparison with a traditional line-of-sight model is demonstrated by the classically analytical model for line-of-sight scenario. Based on a bit error rate requirement of voice communication, the effects of transmitting power versus range for three line-of-sight ultraviolet communication modes are further analyzed.
Źródło:
Optica Applicata; 2014, 44, 4; 601-610
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
W sprawie konieczności zachowania przedludzkich systemów komunikacyjnych (bezjęzykowych) w kontekście zachowania bioróżnorodności
Autorzy:
Puppel, Stanisław
Powiązania:
https://bibliotekanauki.pl/articles/1026482.pdf
Data publikacji:
2021-05-05
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
universal communication space
prehuman communication systems (languageless)
biodiversity
preservation of biodiversity
indexical systems
symbolic system
communication mode
communication order
Opis:
On the basis of the existing and unquestioned linguistic stance, a division of all the living creatures inhabiting the Earth into those which do not have language (i.e. prehuman and languageless) and those who have language (i.e. the genus Homo sapiens) is postulated. The paper briefly discusses a rich diversity of communication modes occurring in the domain of the prehuman communication systems, such as the auditory, visual, tactile, olfactory, electric, thermal, and seismic ones, with appropriate graphic illustrations. Furthermore, on the basis of the phenomenon of the observable shrinking of this diversity and the key position of the human species, it postulates the necessity of preserving this diversity in the context of biodiversity. This major postulate is in accord with the need to intensify attempts to preserve biodiversity as well as preserve the remaining diversity on the level of the prehuman communication systems as a major challenge of modern humanity. In this context, the human species is considered here as the species of the ‘overseers’ and ‘archivers’ of all the existing communication systems existing on the Earth as the carrier of the tree of life.
Źródło:
Studia Rossica Posnaniensia; 2021, 46, 1; 127-136
0081-6884
Pojawia się w:
Studia Rossica Posnaniensia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Topic- and Mode-Sensitive Interaction Strategies: Functions of Ellipsis in Oral Communication
Autorzy:
White, Jonathan
Powiązania:
https://bibliotekanauki.pl/articles/620837.pdf
Data publikacji:
2015-09-01
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
ellipsis
interaction
oral discourse
textchat
discourse topic
mode of communication
Opis:
In this article, we discuss ellipsis as an interactive strategy by analysing the author’s textchat corpus and the VOICE corpus of English as a Lingua Franca. It is found that there were fewer repetitions in the textchat data, and this is explained as a consequence of the textchat mode. Textchat contributions are preserved as long as the chat is active or has been saved, and therefore users can scroll through and review the discussion, compared to the more fleeting nature of oral conversation. As a result, repetition is less necessary. The frequency of other functions identified could be attributed to the topic of discourse. Discussions involve much ellipsis used to develop discourse, although some were self-presentations with repetition used to confirm details. Back-channel support and comments were often low because speakers instead used forms like yeah as supportive utterances.
Źródło:
Research in Language; 2015, 13, 3; 334-350
1731-7533
Pojawia się w:
Research in Language
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Społeczne uwarunkowania edukacji medialnej w rodzinie
Social conditions of media literacy in the family unit
Autorzy:
Szulich-Kałuża, Justyna
Powiązania:
https://bibliotekanauki.pl/articles/951459.pdf
Data publikacji:
2016
Wydawca:
Wyższa Szkoła Gospodarki Euroregionalnej im. Alcide De Gasperi w Józefowie
Tematy:
“soft” media determinism
media generations
models of communication
within a family unit
negotiation mode of communication in a family unit
miękki determinizm medialny pokolenia medialne
modele komunikacji w rodzinie negocjacyjny model komunikacji w rodzinie
Opis:
The article attempts to identify and characterise the selected social determinants of media literacy in a family. First of these is the generational diversity that conditions different competences and ways of media use. The constant presence of media in a family unit and its integral connection with daily life within that family provoke the statement that the media has become an important participant in the process of communication. Therefore, the second determinant is constituted by the models of communication in the family: whether these are one-way, two-way or non-directional communication models. On the basis of the variety of communication types, this paper concentrates on the negotiation model of communication – this being considered to be the most adequate in the active use of media. The discussion takes the perspective of “soft” media determinism by Paul Levinson.
W artykule podjęto próbę określenia i scharakteryzowania wybranych społecznych determinant edukacji medialnej w rodzinie. Pierwszą z nich jest zróżnicowanie pokoleniowe warunkujące odmienne kompetencje i sposoby korzystania z mediów. Stała obecność mediów w rodzinie i ich integralne zespolenie z porządkiem codziennego życia rodzinnego skłaniają do stwierdzenia, że media stają się znaczącymi podmiotami uczestniczącymi w procesie komunikowania. Drugą determinantą są zatem wzory komunikacji w rodzinie: jednokierunkowa, dwukierunkowa oraz bezkierunkowa. Na kanwie wielości typów komunikacji refleksji poddano negocjacyjny model komunikacji, uznany za najbardziej właściwy w aktywnym korzystaniu z mediów. W rozważaniach przyjęto perspektywę „miękkiego” determinizmu medialnego Paula Levinsona.
Źródło:
Journal of Modern Science; 2016, 28, 1; 353-368
1734-2031
Pojawia się w:
Journal of Modern Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Niejednoznaczność wypowiedzi humorystycznych a kompetentne komunikowanie się
The ambiguity between humorous statements and competent communication
Autorzy:
Kucharski, Adam
Powiązania:
https://bibliotekanauki.pl/articles/1029600.pdf
Data publikacji:
2020-12-15
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
communicative competence
humour
ambiguity
bona fide mode
non-bona fide mode
Opis:
The aim of this paper was to discuss competent communication, specifically humorous statements containing ambiguity. Attention was brought to difficulties when deciding between informative and humorous manners of communication. It is not easy to differentiate between the two manners, which means we do not always adjust to the correct manner when speaking with our conversationalist. It brings special difficulties, when the communicator knowingly does not state what manner his speech should be received in. Farther, we cannot always form a phrase in a certain manner, even if the manner is known to us, which can lead to further issues in communication. Communication competency, including humour competency is not only the ability to understand and appreciate the humorous aspect in the message, but also the ability to formulate a humorous statement appropriate for the situation and to the aims raised by an individual.
Źródło:
Człowiek i Społeczeństwo; 2020, 50
0239-3271
Pojawia się w:
Człowiek i Społeczeństwo
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Средства массовой информации и формирование общественной нравственности
Autorzy:
Русецкая, В.И.
Пушкин, А.Л.
Powiązania:
https://bibliotekanauki.pl/articles/2158634.pdf
Data publikacji:
2012
Wydawca:
Instytut Studiów Międzynarodowych i Edukacji Humanum
Tematy:
information
independent media
medialandshaft
dramatic mode
of communication
Opis:
Modern media are focused on the interaction of political and economic subjects. Often they are engaged to create a kind of believable reality that is very far from the true state of affairs. They provide and structure almost all information that we use in everyday life; that is why it is crucial who determines the content and structure of information flow.
Źródło:
Prosopon. Europejskie Studia Społeczno-Humanistyczne; 2012, 2(4); 187-195
1730-0266
Pojawia się w:
Prosopon. Europejskie Studia Społeczno-Humanistyczne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An optimal sliding mode congestion controller for connection-oriented communication networks with lossy links
Autorzy:
Bartoszewicz, A.
Leśniewski, P.
Powiązania:
https://bibliotekanauki.pl/articles/330586.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
optimal control
sliding mode control
flow control
discrete-time system
sterowanie optymalne
sterowanie ślizgowe
sterowanie przepływem
układ dyskretny
Opis:
A new discrete-time sliding-mode congestion controller for connection-oriented networks is proposed. Packet losses which may occur during the transmission process are explicitly taken into account. Two control laws are presented, each obtained by minimizing a different cost functional. The first one concentrates on the output variable, whereas in the second one the whole state vector is considered. Weighting factors for adjusting the influence of the control signal and appropriate (state or output) errors are incorporated in both the functionals. The asymptotic stability of the closed-loop system is proved, and the conditions for 100% bottleneck node bandwidth utilization are derived. The performance of the proposed algorithm is verified by computer simulations.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2014, 24, 1; 87-97
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of rational parameters for urban bus route with combined operating mode
Autorzy:
Taran, I.
Litvin, V.
Powiązania:
https://bibliotekanauki.pl/articles/375343.pdf
Data publikacji:
2018
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
combined transportation mode
inter-stop communication matrix
traffic interval
capacity coefficient
unproductive transportation
rodzaj transportu kombinowanego
matryca komunikacji pomiędzy przystankami
interwał ruchu
współczynnik przepustowości
transport nieproduktywny
Opis:
The paper considers the problems concerning the improvement of passenger transportation process at the expense of the combined operating mode implementation. Efficiency criteria to implement the mixed conveyance forms have been formulated. An extensive approach to determine stopping points, involved in a highspeed route, has been proposed. An economic and mathematical model has been developed. The model makes it possible to study and determine both expediency and rational parameters concerning the implementation of the mixed high-speed conveyance forms. A structure of the integrated efficiency index has been proposed helping select the best approach, and involving the basic economic, technological, and social indices. The modeling outcomes as well as performance efficiency, resulting from the implementation of a high-speed conveyance in the context of an urban route, have been represented.
Źródło:
Transport Problems; 2018, 13, 4; 157-171
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Downtime Measurements of Generator-Powered Microgrid During Planned and Unplanned Transfer to Island Mode
Autorzy:
Prokop, Kamil
Bień, Andrzej
Barczentewicz, Szymon
Powiązania:
https://bibliotekanauki.pl/articles/27311940.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
islanding
Smart grid
power grid communication
power quality
distributed computing
Opis:
Growing popularity of distributed generation is drawing special attention to communication technologies in smart power grids. This paper provides a detailed overview of the communication protocols utilized in the modern distributed grid laboratory. It describes both wired and wireless technologies used in Smart Grid and presents the remote operation of switching the subsystem from grid mode to island mode operating under nominal conditions. It shows the duration of power outages during a transfer to island mode with diesel generator running on idle - which simulates planned islanding and diesel generator stationary, which simulates unplanned islanding. Latency between registration of disturbance and executing control command is measured. The results obtained are compared with current legislation. The consequences to the power system that are possible in both scenarios are highlighted. Obtained results and description of the communication technologies can be useful for the design of distributed power grids, island-mode power grids, and Smart Grids, as well as for further research in the area of using combustion fuel generators as a primary power supply in the microgrid.
Źródło:
International Journal of Electronics and Telecommunications; 2023, 69, 3; 493--498
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Social influence and impact of social media on users’ mobility decisions
Autorzy:
Karatsoli, Maria
Nathanail, Eftihia
Powiązania:
https://bibliotekanauki.pl/articles/2141123.pdf
Data publikacji:
2021
Wydawca:
Fundacja Centrum Badań Socjologicznych
Tematy:
activity planning
mode choice
questionnaire survey
travel behavior
sustainable mobility
Information Communication Technology
ordinal regression
Opis:
Social media are deemed influential in making decisions and seeking advice. Due to their explosive growth as critical channels for information, their content can trigger a place visit, a change of transport mode or destination, or plans’ cancellation. The main objective of this paper is to investigate the influence of social media on users’ activity and mobility planning. Responses of 738 participants in a digital survey were used to formulate ordinal regression models. The developed models determine the contribution of users’ demographic characteristics, travel characteristics and social media usage to mobility decisions after using social media as a source of information. These decisions were expressed in two dependent variables; (i) the impact of social media use in activity and mobility planning; (ii) the impact of the proposed transport mode by social media information, on mode choice. Analysis of the results indicated that the models, which considered all the characteristics together, could better predict the two variables.
Źródło:
Journal of Sustainable Development of Transport and Logistics; 2021, 6, 1; 32-48
2520-2979
Pojawia się w:
Journal of Sustainable Development of Transport and Logistics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Standardization of interface for VHF, MF/HF communication using DSC within Itsintegration with INS in the framework of e-Navigation concept
Autorzy:
Koshevyy, V.
Shishkin, O.
Powiązania:
https://bibliotekanauki.pl/articles/117067.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Morski w Gdyni. Wydział Nawigacyjny
Tematy:
maritime communication
Digital Selective Calling (DSC)
DSC VHF
Automatic Identification System (AIS)
S-Mode
e-Navigation
AIS Messages
Integrated Navigation System (INS)
Opis:
Digital selective calling (DSC) has a certain drawbacks, which have led to the fact that it is practically not used in address radio communications. Attempts to improve it only within the DSC system itself did not lead to any noticeable results due to neglecting of real user needs. The article proposes an approach to improve the user interface of DSC based on the integration of VHF MF/HF DSC equipment with the INS within the three main outputs of strategic direction of e-navigation development related to the integration of communication and navigation systems and, in particular, the S-mode. This approach allows us to significantly simplify the DSC user interface, based on the standardization of DSC integration for all three VHF MF/HF communication sub bands. For implementation such standardization an additional inclusion into the integration a satellite AIS system should be done. The feasibility of the proposal is supported by the existence of relevant IEC standards and IMO documents. The possibility of increasing the cyber security level of AIS messages in this interface is also considered.
Źródło:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation; 2019, 13, 3; 593-596
2083-6473
2083-6481
Pojawia się w:
TransNav : International Journal on Marine Navigation and Safety of Sea Transportation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation and Study of Mode Splitting in Near Field Inductive Communication Systems
Autorzy:
Thanh, H. D.
Agbinya, J. I.
Powiązania:
https://bibliotekanauki.pl/articles/226565.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
splitting frequencies
modes
nearest and second neighbour interactions
coupling coefficient
conventional resonant frequency
power efficiency
transfer function
Opis:
Frequency splitting is a near field inductive communication phenomenon where the resonant frequency divides into many separate frequencies or to different modes. In this paper, we show that this phenomenon depends on the coupling coefficients or the natural response of the circuit by using the circuit theory to derive these splitting frequencies. Also, the rules for the general matrix that is used to solve for splitting frequencies are also demonstrated clearly. Mode splitting is observed for peer-to-peer, three coils and four coil systems due to the existence of the nearest and second neighbour interactions. In particular, two, three and four modes have been analysed for two, three, and four coil systems respectively. However, the number of modes for these systems can be changed according to the degree of coupling. The differences in the resultant splitting frequencies with and without the second neighbour interaction are shown in the simulation results. Furthermore, we assess the system performances regarding to power efficiency through the inductive transfer functions. Besides, either coupling coefficients at resonance or the simplified transfer functions in some specific scenarios can be obtained by having an insight into these transfer functions. Finally, we recognise and propose that splitting frequency phenomenon can be deployed to transmit signals at many frequencies concurrently.
Źródło:
International Journal of Electronics and Telecommunications; 2013, 59, 2; 185-194
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Research on communication emitter identification based on semi-supervised dimensionality reduction in complex electromagnetic environment
Autorzy:
Ge, Wei
Qi, Lin
Tong, Lin
Zhu, Jun
Zhang, Jing
Zhao, Dongyang
Li, Ke
Powiązania:
https://bibliotekanauki.pl/articles/27311449.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
communication emitter identification
feature extraction
dimensionality reduction
VMD
ESDA
variational mode decomposition
exponential semi-supervised discriminant analysis
identyfikacja emitera komunikacyjnego
ekstrakcja cech
redukcja wymiarowości
rozkład w trybie wariacyjnym
analiza dyskryminacyjna wykładnicza półnadzorowana
Opis:
The individual identification of communication emitters is a process of identifying different emitters based on the radio frequency fingerprint features extracted from the received signals. Due to the inherent non-linearity of the emitter power amplifier, the fingerprints provide distinguishing features for emitter identification. In this study, approximate entropy is introduced into variational mode decomposition, whose features performed in each mode which is decomposed from the reconstructed signal are extracted while the local minimum removal method is used to filter out the noise mode to improve SNR. We proposed a semi-supervised dimensionality reduction method named exponential semi-supervised discriminant analysis in order to reduce the high-dimensional feature vectors of the signals, and LightGBM is applied to build a classifier for communication emitter identification. The experimental results show that the method performs better than the state-of-the-art individual communication emitter identification technology for the steady signal data set of radio stations with the same plant, batch and model.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2023, 71, 4; art. no. e145766
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Komunikacja oparta na kanale wizualnym i audialnym a jakość pomiaru sondażowego. W stronę nowego ujęcia hipotezy preferencji techniki przy wykorzystaniu koncepcji pamięci roboczej
The effects of visual and aural communication on the quality of survey measurement. The proposition of a new theoretical approach to survey mode preference on the basis of the working memory concept
Autorzy:
Rybak, Adam
Powiązania:
https://bibliotekanauki.pl/articles/413458.pdf
Data publikacji:
2019
Wydawca:
Łódzkie Towarzystwo Naukowe
Tematy:
working memory, survey mode preference, satisficing, survey research methodology
pamięć robocza, preferencja techniki sondażu, satisficing, metodologia badań sondażowych
Opis:
The aim of the article is to present a potential direction for the development of survey design research. It tries to describe the possibility of building a concept that integrates the observed consequences of survey mode preference – its impact on the response rate and the quality of responses – using the cognitive concept of working memory. It indicates the existence of a potential relationship between the aging process, or anxiety, and the diversification of information processing efficiency in the visual and aural modalities, and thus outlines the problems facing researchers planning mixed-mode surveys, especially in aging western populations.
Celem artykułu jest przedstawienie potencjalnego kierunku rozwoju badań metodologicznych nad konstrukcją sondaży. W centrum rozważań postawiono kwestię projektowanej koncepcji integrującej zaobserwowane konsekwencje preferowania techniki sondażu przez respondentów (z uwzględnieniem wpływu sondażu na poziom realizacji badania i jakość uzyskanych odpowiedzi) przy wykorzystaniu kognitywistycznej koncepcji pamięci roboczej. Wskazano bowiem na istnienie potencjalnej relacji pomiędzy procesem starzenia się respondentów, czy odczuwanym przez nich lękiem, a różnicowaniem w sposobie przetwarzania informacji w modalności wzrokowej i słuchowej, zarysowując tym samym, jakie problemy stoją przed konstruującymi badania łączące różne techniki sondażu, między innymi w starzejących się populacjach zachodnich.
Źródło:
Przegląd Socjologiczny; 2019, 68, 3; 207-227
0033-2356
Pojawia się w:
Przegląd Socjologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
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