Message Channel Research Articles

Application effect of the online and offline mixed education mode in nursing practice based on the SMCR communication model.

To explore the application effect of the online and offline mixed teaching mode in nursing practice teaching based on the Source Message Channel Receiver (SMCR) communication model. By using the convenience sampling method, 15 nursing students who practiced their internship in the Department of Critical Care Medicine at Beijing Friendship Hospital affiliated to Capital Medical University for 4 weeks, from 1 April 2022 to 31 December 2023, were selected as the experimental group. A total of 16 nursing students who practiced in the same hospital in 2021 were selected as the control group. The control group used traditional teaching mode for teaching, and the experimental group used the online and offline teaching mode for teaching. The theoretical and practical achievements, competency, and teaching satisfaction of the two groups of nursing students were compared and analyzed after the internship. The theoretical knowledge, operational performance, competence of the nurses, and satisfaction with the teaching in the experimental group were higher than those of the control group (P < 0.05). Based on the SMCR communication model, exploring the online and offline mixed teaching mode plays an important role in the teaching process of nursing practice, which can not only effectively improve the comprehensive performance of nursing students but also help to improve their satisfaction with teaching and has a positive impact on the cultivation of high-quality nursing talents.

Distributed state-of-charge and power balance estimation for aggregated battery energy storage systems with EV aggregators

Aggregated battery energy storage systems (ABESSs) play an important role in smart grids. This study considers distributed ABESSs containing electric vehicle (EV) aggregators and battery energy storage systems (BESSs). Due to randomness and uncertainty caused by EV aggregators, the distributed ABESSs face heterogeneous random communication failures between the EV aggregators and the BESSs. Aiming to solve this problem, this study proposes a distributed state-of-charge (SoC) and power balance estimation strategy for ABESSs with an event-triggered mechanism. Different from the traditional SoC balance problem definition in the BESSs, this study introduces an innovative balance convergence condition to solve the problem of power imbalance between the EV aggregators and the BESS units. In addition, an adaptively robust estimation algorithm is designed to estimate the precise value of SoC and power under heterogeneous random failures caused by EV aggregators. Further, a distributed periodic dynamic event-triggered mechanism is developed considering redundant messages in the ABESS communication channels. This mechanism can both handle the Zeno phenomenon and obtain a larger minimum time interval with fewer sent measurements. The simulation results demonstrate the effectiveness of the proposed distributed approach in both the discharging and charging modes of ABESSs.

The model of a discrete communication channel in the control channel of satellite communication systems

The control channels used in modern satellite communication systems (CCC) for multiplexers used in modern satellite communication systems are designed to transmit control messages regarding changes in the frame structures of organized compressed digital streams. Increased requirements are placed on the reliability of messages transmitted in these channels compared to messages transmitted in sealed channels. In the presence of phase flickering, as well as with a decrease in the signal-to-noise ratio (SNR) in communication channels formed on the basis of convolutional codes, the effect of grouping errors occurs at the input of decoders of noise-resistant codes in control channels. Therefore, information about the statistical properties of messages received at the input of a decoder designed to ensure the reliability of control channel messages is important in the synthesis of decoding algorithms capable of taking into account these statistical properties.

Identification and Characterization of Illegal Sales of Cannabis and Nicotine Delivery Products on Telegram Messaging Platform.

Unregulated and potentially illegal sales of tobacco, nicotine, and cannabis products have been detected on various social media platforms, e-commerce sites, online retailers, and the dark web. New end-to-end encrypted messaging services are popular among online users and present opportunities for marketing, trading, and selling of these products. The purpose of this study was to identify and characterize tobacco, nicotine, and cannabis selling activity on the messaging platform Telegram. The study was conducted in three phases: (1) identifying keywords related to tobacco, nicotine, and cannabis products for purposes of detecting Telegram groups and channel messages; (2) automated data collection from public Telegram groups; and (3) manual annotation and classification of messages engaged in marketing and selling products to consumers. Four keywords were identified ("Nicotine," "Vape," "Cannabis," and "Smoke") that yielded 20 Telegram groups with 262 506 active subscribers. Total volume of channel messages was 43 963 unique messages that included 3094 (7.04%) marketing/selling messages. The most commonly sold products in these groups were cannabis-derived products (83.25%, n = 2576), followed by tobacco/nicotine-derived products (6.46%, n = 200), and other illicit drugs (0.77%, n = 24). A variety of marketing tactics and a mix of seller accounts were observed, though most appeared to be individual suppliers. Telegram is an online messaging application that allows for custom group creation and global connectivity, but also includes unregulated activities associated with the sale of cannabis and nicotine delivery products. Greater attention is needed to conduct monitoring and enforcement on these emerging platforms for unregulated and potentially illegal cannabis and nicotine product sales direct-to-consumer. Based on study results, Telegram represents an emerging platform that enables a robust cannabis and nicotine-selling marketplace. As local, state, and national tobacco control regulations continue to advance sales restrictions and bans at the retail level, easily accessible and unregulated Internet-based channels must be further assessed to ensure that they do not act as conduits for exposure and access to unregulated or illegal cannabis and nicotine products.

Marijuana Message Channels, Health Knowledge, Law Knowledge, and Confidence in Knowledge as Risk and Protective Factors of Marijuana Use among College Students.

Marijuana use among U.S. college students is the highest since the mid-1980s. Because knowledge about marijuana and confidence in the knowledge are related to changing marijuana laws and marijuana-related messages ubiquitous in college students' information environment, we examined their relationships with use. The Structural Equation Modeling method was used to analyze the relationships using survey responses from 249 college students in an adult-use marijuana legal state. Marijuana health knowledge was related to less use, and law knowledge was related to more use. Both relationships were mediated by perceived risk. Confidence in knowledge was related to more use directly as well as indirectly via lower peer disapproval and lower perceived risk. Among various marijuana message channels, peers were the most influential, contributing to lower health knowledge and higher confidence in knowledge.

A computational analysis of Telegram's narrative affordances.

This paper offers an empirical investigation of the narrative profiles afforded by public, one-way messaging channels on Telegram. We define these narrative profiles in terms of the contribution of messages to a thread of narrative continuity, and test the double hypothesis that 1) Telegram channels afford diverse narrative profiles, corresponding with distinct vernacular uses of the platform's features, and that 2) networks of Telegram channels sampled from thematically distinct seed channels lean towards distinct profiles. To this end, we analyse the textual contents of 2,724,187 messages from 492 public messaging channels spanning five thematic networks. Our computational method builds up the narrative profiles by scrolling down channels and classifying each message according to its narrative fit with the surrounding messages. We thus find that Telegram channels afford several distinct storytelling profiles, which tend to defy traditional notions of narrative coherence. We furthermore observe correspondences between the thematic orientations of channels and their narrative profiles, with a preference for disparate profiles in channels pertaining to conspiracy theories and far-right counterculture, a preference for coherent profiles in channels pertaining to cryptocurrencies, and mixed types in channels pertaining to disinformation about the war in Ukraine. These empirical observations thus inform our further theorization on how platform features allow users to construct and shape narratives online.

Модель формирования протокольных блоков данных управляющих сообщений канала управления динамическим изменением параметров сигналов абонентских терминалов

The article presents a model of formation of protocol data blocks of control messages of the control channel for the dynamic change in signal parameters of subscriber terminals of satellite communication systems. The model takes into account the dynamic distribution of the frequency-time resource of user terminals and the change in the number of simultaneously functioning subscriber terminals in the group signal. The basic principles of functioning of satellite communication systems with dynamic change of signal parameters are considered. The description of the structure of protocol data blocks of control channel messages and their main structural elements is presented. The issues of variability in the construction of structural elements of control messages of protocol data blocks of the control channel are considered. The number of possible alternatives to the structure of protocol data blocks of channel control messages was estimated. The results obtained on the basis of modeling can be used to identify data blocks of control channel messages and determine the parameters of user terminal signals for further reception and processing.

Implementasi Media Video dalam Meningkatkan Motivasi Belajar Pendidikan Pancasila dan Kewarganegaraan pada Peserta Didik Kelas XI IPS di SMA Negeri 1 Lunang

The background of this research is to improve the quality of student learning and student achievement in Pancasila and civic education lessons by using video media that can be used to channel messages so that it can stimulate thoughts, feelings, concerns, and interests, students' attention so that students' motivation in learning increases. This study aims to: 1) Describe the teacher's process in implementing video media in Civics learning. 2) Knowing the obstacles faced by teachers in implementing video media in Civics learning 3). Describes students' motivation in using video media in Civics learning. This study uses behavioristic theory, this theory examines human behavior. The type of research used is descriptive with a qualitative approach. The informants in this study were teachers of Pancasila and Citizenship Education at SMAN 1 Lunang, Deputy Curriculum at SMAN 1 Lunang and students from class XI Social Sciences at SMAN I at Lunang. Data collection techniques in this study are observation, interviews and documentation. Data analysis techniques include data reduction, data presentation, and drawing conclusions. The results of the research that has been done, found: 1) In implementing video media in Civics learning, the teacher first looks for learning videos on YouTube and then adjusts them to the lesson plans and modules, after that the teacher plays the videos in class according to the appropriate methods and procedures. So as to produce effective, efficient learning and increase student motivation. This is because the enthusiasm of students in learning increases. 2) Obstacles that are often experienced in using video media are teachers who have difficulty managing learning time with the duration of the video, with the duration of lesson hours. 3) The motivation of students in using video media in Civics learning is able to make students' attention focus on learning so that all questions given by the teacher are answered by students.

Using Promotional Strategies to Increase the Use of Miswak among Teenagers in Saudi Arabia

Miswak is a chewing stick that has been used in Muslim communities across the world for over 1,500 years as an oral hygiene aid. There is evidence to support its clinical effectiveness in plaque management when used alone or in conjunction with a conventional toothbrush. However, evidence of its deleterious effects on periodontal health is equivocal. To study culturally acceptable strategies for promoting oral health practices and preventing illness among adolescents in Saudi Arabia, advertisements were assessed for their ability to engage and open up new communication channels for oral health messages. The aim is to encourage adolescents to adopt the habit of using miswak to improve their oral hygiene, wherever they may be. The data for this study was collected from 116 teenage respondents from Saudi Arabia. The mean age of the study participants was 16.66 ± 0.943 years, with a median age of 17 and a range from 12 to 17. The study included 66 males (56.9%) and 50 females (43.1%). Furthermore, the overall mean assessments of both advertisements were negative due to several problems with the design and use of pictures in the ads. The analysis of this study show that a more standardised method of advertisement is required to properly gain the attention of this generation of adolescents in Saudi Arabia. In addition, the individuals who took part in the research believed that social media is the most suitable venue for conveying messages promoting miswak. To be able to communicate effectively about oral health messaging, one must first have a solid understanding of the advertising messages that are relevant to oral health, as well as the influence of religion. Another prerequisite for the creation of effective advertising is knowledge of media platforms and the impacts that these platforms have on the behaviour of teenagers. Successful communication could make youths in Saudi Arabia likelier to use miswak.

The Effect of Using Media Video Learning to Write News on The Ability to Write News Texts in Class VIII of SMP Negeri VIII Tapung Hulu, Kampar Regency

This study aims to determine: (1) thefeasibility of information literacy-based news writing video media for students of grade VIII SMP Negeri 1 Tapung Hulu Kampar Regency, and (2) comparison ofstudent learning outcomes taught using information literacy-based news writing video media with student learning outcomes taught without information literacy-based news writing video media. The theory that becomes the reference in this research is about video media according to Arsyad, writing news according to Zainurrahman and Djuraid. The method in this research is a quasi-experimental research with anonequivalent control groupdesign.The population of this study were all junior high school students in grade VIII of SMP N 1 Tapung Hulu. The sample of this study amounted to 2 classes with each class totaling 36 students. Class VIII-1 was taught using information literacy-based news writing video media, while class VIII-3 was taught without information literacy-based news writing video media. The object of this research is news writing video media based on information literacy.The results of this study found that: (1) Thethe results of research on the quality of video media writing news based on information literacy both by material experts, media experts, Indonesian language teachers, and students provide an assessment with a very good category, and(2)Student Learning Outcomes taught using video media writing news based on information literacy (80.00 ± 3.87) ( ±SD) were higher than the learning outcomes of students taught without video media writing news based on information literacy (68.47 ± 5.92) (t-count = 9.772; P = 0.000). Thus, learning media is a means that can be used to channel messages, stimulate thoughts, feelings, attention, and willingness of students so as to encourage the learning process in students. So that the Indonesian language learning process using video media writing news based on information literacy can improve the efficiency and effectiveness of the process and student learning outcomes for the better.

Peranan Media Pembelajaran Dalam Pendidikan Islam

In its development, science and technology continue to push for changes in the utilization of technological results in the learning process. Learning media is one of the ways and efforts in the learning process carried out by the teacher, namely using learning media. By using learning media the teacher will more easily teach the subject matter and students will more easily understand the lesson. The role of learning media in the learning and teaching process is very important for educators to carry out at this time, because the role of learning media can be used to channel messages from senders to recipients and through learning media can also help students to explain something conveyed by educators. Therefor the research is aimed at analyzing how the role and function of instructional media specifically in Islamic education. This research uses qualitative methods with literature studies. The subject of this research was carried out in an analytical manner by collecting sources such as books, or the results of previous related studies, then analyzing them. The implication of this research is to be able to find out the role of learning media in Islamic education so that the goals of education in Islam can be achieved.

Motivating COVID-19 Vaccination through Persuasive Communication: A Systematic Review of Randomized Controlled Trials

ABSTRACT Vaccination is a vital defense against COVID-19 infections and outbreaks, yet vaccine hesitancy poses a significant threat to pandemic response and recovery. We conducted a systematic review of published randomized controlled trials (N = 47) assessing the persuasive effects of COVID-19 communication on COVID-19 vaccine acceptance. Individual vs. collective appeals and gain vs. loss frames are among the most frequently assessed message features, but they generally do not make a difference in persuasion. Normative messages that highlight higher (vs. lower) prevalence of vaccine acceptance are more persuasive. Message sources overall have limited impact on COVID-19 vaccine acceptance, but sources that have a shared identity with the message receivers tend to be persuasive. More engaging message channels such as interactive chatbots and videos are promising communication tools but are generally under-utilized and under-studied. Compared to no communication or irrelevant communication, COVID-19 vaccine messages generally have a small advantage in increasing COVID-19 vaccine acceptance. Messages that include 1) vaccine safety and/or efficacy information; 2) collective appeals combined with embarrassment appeals; and 3) political leaders’ vaccine endorsement are among the most effective messaging strategies. There is no evidence of any backfire effects of COVID-19 vaccine messages. We discuss the implications of our findings for persuasive message design in pandemic vaccine communication.

Evolution of a Project to Improve Inpatient-to-Outpatient Dermatology Care Transitions: Mixed Methods Evaluation.

In-hospital dermatological care has shifted from dedicated dermatology wards to consultation services, and some consulted patients may require postdischarge follow-up in outpatient dermatology. Safe and timely care transitions from inpatient-to-outpatient specialty care are critical for patient health, but communication around these transitions can be disjointed, and workflows can be complex. In this 3-phase quality improvement effort, we developed and evaluated an intervention that leveraged an electronic health record (EHR) feature, known as SmartPhrase, to enable a new workflow to improve transitions from inpatient care to outpatient dermatology. Phase 1 (February-March 2021) included interviews with patients and process mapping with key stakeholders to identify gaps and inform an intervention: a SmartPhrase table and associated workflow to promote collection of patient information needed for scheduling follow-up and closed-loop communication between dermatology and scheduling teams. In phase 2 (April-May 2021), semistructured interviews-with dermatologists (n=5), dermatology residents (n=5), and schedulers (n=6)-identified pain points and refinements. In phase 3, the intervention was evaluated by triangulating data from these interviews with measured changes in scheduling efficiency, visit completion, and messaging volume preimplementation (January-February 2021) and postimplementation (April-May 2021). Preintervention pain points included unclear workflow for care transitions, limited patient input in follow-up planning, multiple messaging channels (eg, EHR based, email, and phone messages), and time-inefficient patient tracking. The intervention addressed most pain points; interviewees reported the intervention was easy to adopt and improved scheduling efficiency, workload, and patient involvement. More visits were completed within the desired timeframe of 14 days after discharge during the postimplementation period (21/47, 45%) than the preimplementation period (28/41, 68%; P=.03). The messaging workload also decreased from 88 scheduling-related messages sent for 25 patients before implementation to 30 messages for 8 patients after implementation. Inpatient-to-outpatient specialty care transitions are complex and involve multiple stakeholders, thus requiring multifaceted solutions. With deliberate evaluation, broad stakeholder input, and iteration, we designed and implemented a successful solution using a standard EHR feature, SmartPhrase, integrated into a standardized workflow to improve the timeliness of posthospital specialty care and reduce workload.

Lengthy early morning instant messages reveal more than you think: Analysing interpersonal relationships using mobile communication metadata

Privacy policies are one of the key factors that determine user’s privacy exposure. Quite often such policies request users’ consent to ”only” collect their metadata. In this paper, we investigate the information that communication metadata can reveal, specifically, in regards to users’ social circles. To this end, we developed an application and conducted a longitudinal field study with 25 participants, who installed our application on their personal smartphones. Over a period of four weeks, our application collected the metadata of the participants’ communication with their social contacts over four channels, i.e., calls, SMS, e-mails, and Instant Messages (IMs). The content of the communication were not collected and the identities of the participants’ social contacts were encrypted, so that only the users could get access to them. We leverage the collected metadata to examine whether and to what extend it is possible to exploit them in order to classify the participants’ social contacts into four social categories, namely, family members, friends, acquaintances, and colleagues using Machine Learning (ML) techniques. By doing so, we do not only reproduce and replicate an existing study, but also extend it by further considering the metadata about IMs. In our user study, friends and family members call each other and exchange SMS more than acquaintances and colleagues. Moreover, as expected, IMs are exchanged more with friends followed by family, whereas e-mails more between acquaintances and colleagues. In addition, to validate the role of instant messaging channel, we show against our expectations that considering metadata about IMs only slightly improve the prediction of users’ social ties. We also examine the most important features that lead to such predictions. We show that the prediction of social ties can be further enhanced by considering the aforementioned communication channels. Our study results in the f-measure score of 79.4% for a fine-grained classification of four considered social categories, achieving better results than related approaches, and 89.6% when considering the family category against all the others.

Digital mobilization via attention building: The logic of cross-boundary actions in the 2019 Hong Kong social movement

Scholars have noticed that contemporary digitally-mediated activism is hybridized in terms of organizational structures, action-repertoires, and underlying movement logics. However, to what extent such hybridization takes place in contentious politics and whether or not the process benefits the goal of movement mobilization remain uncertain. This study scrutinizes the mechanism of online activism in an analysis of 2 million Telegram Channel messages collected during the 2019 Hong Kong Anti-Extradition Law Amendment Bill movement. It highlights the logic of cross-boundary action – a mixture of action actors, organizational structures, repertoires, network positions for empowerment – through which self-organized activists played overwhelmingly vital roles in the movement but were critically supported by small numbers of organizational and news media actors in some essential functioning. The study also establishes a relationship between the online audience’s attention to the call-for-action messages and the subsequent protest turnout, indicating a private-to-public shift via networked media, in which most of the diversely connected self-organized activists captured most of the attention. It finally summarizes the multidimensional nature of digital activism in defining the way social media affordance shapes the landscape of contemporary political participation.

Ionospheric delay estimation of Loran skywave using simple cosine model

ABSTRACT Ionospheric delay is the most significant source of error affecting the Loran skywave timing. To improve timing service, we propose a new ionospheric delay estimation method in this paper. It is a cosine model that combines the ionospheric physical characteristics and skywave delay variation law. This semi-empirical and semi-measured model has characteristics of accuracy and simplicity compared with the traditional method. The experimental results show that estimation error of the model is less than 1 µs for a single day and less than 2 µs for 3 days in the stable time. It is sufficient to correct more than 90% of delay when skywave passes through the ionosphere and is less affected by the season. This paper also gives some suggestions on the propagation of ionospheric coefficients required for the model. It allows broadcasting only by modifying the data channel message structure under the normal operation of Loran system.

Validitas Media Pembelajaran Matematika Menggunakan Aplikasi Powtoon

The role of learning media in the learning and teaching process is an integral part that cannot be separated from the world of education. Learning media is anything that can be used to channel messages from senders to recipients, so that they can stimulate students' thoughts, feelings, concerns, and interests to learn. Seeing the importance of media in learning, it is necessary to develop learning media that are valid and suitable for use in the learning process. In an effort to develop learning media, validation is carried out on the media that is being developed, the purpose of validating is to find out and correct errors that exist in the learning media being developed. This study aims to determine the validity of mathematics learning media using the powtoon application. This type of research is research and development (Research and Development). Based on the results of the validation, it shows that the learning media developed is valid, it can be seen from the results of the validity given by the experts (validators), both subject matter experts and language experts. The validation results obtained were 81% for material aspects and 90% for language aspects.

How Slack Facilitates Communication and Collaboration in Seminars and Project-Based Courses

Lectures and seminars increasingly strive for continuous interactions between learners and the instructor. I study whether the communication program Slack contributes to these goals by analyzing daily activity statistics in methodological and project-based postgraduate courses at an Irish university. Both semester-long courses were taught online during the coronavirus pandemic (Covid-19) and in person. The quantitative analysis reveals three insights. First, students are active on Slack throughout the term. Second, students post messages in public channels and extensively use private channels and direct messages. Third, many students follow the conversations, ensuring transparent and fair communication between students and instructors. Open-ended responses suggest that Slack created “team spirit.” I conclude with five recommendations: students should sign up in the first week of term; create channels for different aspects of the module; explain when students can expect a response; encourage private conversations between students; and monitor activities regularly.

Information Capacity of Turbulent and Absorptive Underwater Wireless Link with Perfect Laguerre–Gaussian Beam and Pointing Errors

The model of information capacity for underwater wireless optical communication (UWOC) links with pointing errors and the carrier of perfect Laguerre–Gaussian (PLG) beam in absorbed and weakly turbulent seawater is modeled. Using this model, the influence of channel parameters on the propagation of PLG beams is numerically analyzed. We show that the pointing error significantly reduces the performance of the optical transmission system. Large topological charge and radial orders are not conducive to high information capacity transmission. Additionally, the information capacity decreases with the increase in the spectral absorption coefficient of seawater. With higher transmission power, the transmission of an optical transmission system with high average capacity can be realized. The information capacity is affected by both signal wavelength and seawater absorption coefficient. That is, in the case of small seawater absorption and short message channel, the channel capacity loss of the link with long signal wavelength is smaller. In the case of long channels and strong seawater absorption, the influence of signal wavelength on the average capacity can be ignored. The information capacity of the communication link is the highest, which is composed of the carrier with the OAM topological charge, and the radial orders are both 1, and the wavelength is 410 nm.

PENGGUNAAN ALAT PERAGA DALAM PEMBELAJARAN

Teaching aids is a tool or equipment used by teachers when communicating in the teaching and learning process. Teaching aids include all learning resources that can be used in the teaching and learning process so that teaching can take place well, draw closer or smooth the road to the planned goals. All types of teaching aids that can channel messages, stimulate the mind, attention, and facilitate student understanding of the material being taught, then all of them can be used as props in increasing student understanding of both objects and their surroundings. Teaching aids is a tool or equipment used by teachers when communicating in the teaching and learning process. Teaching aids include all learning resources that can be used in the teaching and learning process so that teaching can take place well, draw closer or smooth the road to the planned goals. All types of teaching aids that can channel messages, stimulate the mind, attention, and facilitate student understanding of the material being taught, then all of them can be used as props in increasing student understanding of both objects and their surroundings