VLSI Structures for Viterbi Receivers: Part II--Encoded MSK Modulation

Development of optimized memory based VLSI architecture with histogram analysis for image contrast enhancement

Chapter 17 Computation models and function algebras

Bisimilar linear systems

Semilinear sets are one of the most important concepts in theoretical computer science, as illustrated by the fact that the set of nonnegative integer solutions to any system of Diophantine equations is semilinear. Parikh's theorem enables us to represent any semilinear set as a pushdown automaton (PDA). We summarize recent results on the descriptional complexity of conversions among different representations of a semilinear set: as a vector set (conventional), a finite automaton (FA), a PDA, etc.. We also discuss semilinearity-preserving operations like union, intersection, and complement. We use Parikh's theorem to enlarge the class of finite-state machines that can represent semilinear sets. In particular, we give a simpler proof of a known result that characterizes semilinear sets in terms of machines with reversal-bounded counters. We then investigate the power of such a machine with only one counter in the context of a long-standing conjecture about repetition on words.

Online health communities (OHCs) offer opportunities to improve personalized health treatment by facilitating collaboration between patients and health professionals and leveraging patient-reported outcome and experience measures (PROMS and PREMS). This study investigates how communication elements (i.e., emotions, patient-generated topics, appeal, and linguistic style) affect patient awareness and engagement in an OHC in the field of atrial fibrillation (AF) aiming to provide empirical insights into communication strategies that enhance patient involvement and expand OHC impact. Our randomized online field experiment targeted Dutch adults using 12 communication concepts shared across Facebook, Instagram of an OHC platform on AF. Participants' response and interaction with communication concepts were analyzed to investigate the influence of communication elements on awareness, defined as Click-Through-Rate (CTR), and engagement marked as average engagement time and community subscriptions. Statistical analysis incorporated linear and logistic regression models, with Python 3.10.12 Statsmodels and SPSS 29.0. Between May 23 and June 23, 2023, 795,812 users were reached, leading to 18,426 OHC visits, 478 new subscriptions, and an average engagement time of 35 seconds. Communication concepts significantly affected CTR, average engagement time, and community subscriptions, with both emotion and topic being strong predictors. Our study finds that the impact of emotions in health communication varies by topic: fear is most effective with self-protection, while love works best with affiliation and kin care. Expert appeals boost awareness, whereas testimonials enhance engagement. Our novel findings contribute to the field of digital health communication by shedding light on the dynamic influence of communication elements on different stages of the patient journey. Health managers can use these insights to better reach and engage patients in online health communities to accelerate health care impact.

The computational card (c-cards for short) project is a study and realization of an educational tool based on playing cards. C-cards are an educational tool to introduce children 8 to 10 (or older) to the concept of computation, seen as manipulation of symbols. The game provides teachers and learners with a physical, tangible metaphor for exploring core concepts of computer science, such as deterministic and probabilistic state machines, frequencies and probability distributions, and the central elements of Shannon's information theory, like information, communication, errors and error detection. Our idea is implemented both with paper cards and by an editor/simulator software (a prototype realized in javascript). We also designed the structure of a course in (theoretical) computer science, based on c-cards, and we will test it this summer.

Conventional approaches of digital modulation schemes make use of amplitude, frequency and/or phase as modulation characteristic to transmit data. In this paper, we exploit circular polarization (CP) of the propagating electromagnetic carrier as modulation attribute which is a novel concept in digital communications. The requirement of antenna alignment to maximize received power is eliminated for CP signals and these are not affected by linearly polarized jamming signals. The work presents the concept of Circular Polarization Modulation for 2, 4 and 8 states of carrier and refers them as binary circular polarization modulation (BCPM), quaternary circular polarization modulation (QCPM) and 8-state circular polarization modulation (8CPM) respectively. Issues of modulation, demodulation, 3D symbol constellations and 3D propagating waveforms for the proposed modulation schemes are presented and analyzed in the presence of channel effects, and they are shown to have the same bit error performance in the presence of AWGN compared with conventional schemes while provide 3dB gain in the flat Rayleigh fading channel.

Channel routing is a fundamental problem in VLSI layout and has received much attention recently ([F],[MPS],[PL],[BBL],[BBBL],[GK]..). Unfortunately, most algorithms produce good layouts only with respect to the channel width, but not with respect to the length of the wires, which is a second important measure for the performance of the layout. Here, we consider the problem of routing a given channel with short wires. We show that our algorithms produce routings with minimum total wire length.

This research investigates the effectiveness of using a commercial Enterprise Resource Planning System (ERP) as a supplement tool to teach Enterprise Information Systems concepts in Business Schools. A state-of-the-art ERP System is an integrated enterprise software system that has a windows-based interface, a client-server architecture, and a modular and expandable structure. This complex computer environment provides a rich content domain where students can get exposure to key business, computer science, data communication, and information systems concepts. A significant challenge facing business school educators is to identify how best to deploy a commercial ERP System in their academic environment. Furthermore, an issue that must be addressed, before implementing any new educational innovation, is whether the costs of changing the curriculum and then maintaining the new program will be justified in terms of learning effectiveness and efficiency. To date, the educational benefits of the instructional uses of commercial ERP systems such as the SAP R/3 System have been established on the basis of anecdotal statements from faculty and students rather than on empirical and objectively measured data secured by sound research methods. Thus, the main objectives of this study are to determine whether or not student's performance, self-efficacy, and satisfaction are enhanced by the use of an ERP System as a support tool in learning business processes. This study compares three delivery instructional methods. A traditional instruction method (lecture format plus reading/exercises) acts as the control. The second and third instructional methods are computer-based methods. In the second method, students receive traditional lecture format with full access to hands-on SAP R/3 system transaction exercises. In the third method, students receive traditional lecture format, but also have full access to simulated hands-on SAP R/3 system via Web transaction exercises (i.e., ScreenCam movies). A statistically significant difference between-instructional methods effect, F (2, 269) = 5.62, p < 0.05, is found. Post hoc analysis showed that the simulated hands-on instruction group's performance score was significantly higher (p > 0.05) than that of the control group. There were no other statistically significant differences found.

Today, with the rapid spread of the internet, people have become more interested in digital media. For this reason, the concept of citizenship has taken its place in the technology environment and has started to gain different meanings. The aim of this study is to determine the level of technology use of social studies teacher candidates, their perception of digital citizenship elements focusing on online behavior, and their practices in this regard. The participants of the study consisted of 84 social studies teacher candidates at the level of four grades studying in Malatya Inonu University. The data of the research were applied to the participants who voluntarily participated online in December 2020 through the Google form created as closed and open-ended. The data of the study were applied to the participants who voluntarily participated online in December 2020 through the Google form created with closed and open-ended questions. In this context, first of all, the participants were asked to answer various demographic information such as gender, grade level. Then questions about technology usage habits; device usage, internet access, activities they do at home were evaluated. Then, after determining the perceptions of digital commerce, digital access, digital ethics, digital law, digital health, digital security, digital communication, digital literacy, digital rights and responsibility concepts, which are sub-dimensions of the concept of digital citizenship, the life practices of the participants on this subject were revealed.

Advice complexity, introduced by Karp and Lipton, asks how many bits of “help” suffice to accept a given language. This is a notion that contains aspects both of informational and computational complexity, and captures non-uniform complexity. We are concerned with the connection between this notion and P-selective sets. The main question we study in our paper is how complex should the advice be as a function of the power of the interpreter, from the standpoint of average-case complexity. In the deterministic case, Ko proved that quadratic advice suffices, and Hemaspaandra and Torenvliet showed that linear advice is required. A long standing open problem is the question how to close this gap. We prove that in the probabilistic case linear size advice is enough, as long as this advice depends on the randomness. This is the first sub-quadratic result for the class P-sel for bounded-error probabilistic machines. As a consequence, several Karp-Lipton type theorems are obtained. Our methods are based on several fundamental concepts of theoretical computer science, as hardness amplification and Von Neumann’s Minimax theorem, and demonstrate surprising connections between them and the seemingly unrelated notion of selectivity.

Introduction This study investigates how multimodal metaphors convey two core Traditional Chinese Medicine (TCM) concepts— “Yin Xu” (Yin deficiency) and “Yang Xu” (Yang deficiency)—in short science communication videos on Douyin. Drawing on Conceptual Metaphor Theory, Multimodal Metaphor Theory, and Visual Grammar Theory, this research examines the effectiveness of multimodal representation of TCM concepts in digital health communication. Methods This study adopts a quantitative multimodal discourse analysis approach to analyze 15 short videos on Yin Xu and Yang Xu published on Douyin between 2023 and 2024. Using ELAN software, 89 metaphorical units were annotated across four semiotic modes (written signs, pictorial signs, sound, and gesture) to evaluate their performance, distribution, and cross-modal coordination. Results Findings indicate that 43.8% of metaphorical mappings exhibit source-target domain inconsistencies, accompanied by insufficient cross-modal coordination and minimal dynamic narrative elements. Written text overwhelmingly dominates the modal distribution at 67.4%, while visual elements remain notably underrepresented at 21.3%. These findings suggest that multimodal inconsistency and visual underutilization may compromise the conceptual coherence of TCM metaphorical communication. Discussion In response to these identified shortcomings, this paper presents optimization strategies focused on color-based coding systems, dynamic narrative construction, and enhanced cross-modal integration. By developing a systematic framework for enhancing the precision and coherence of TCM metaphor representation in digital media, this research contributes to the convergence of semiotic analysis, science communication, and cognitive linguistics.

Taking stock of ODE distance and proximity the three constructive concepts the concepts in practice modifying concepts digital information and communication and the flexibility of the virtual university teaching and learning models analyses and perspectives.

The article explores the role of communication management in the context of developing and implementing digital strategies, focusing on innovations in digital communication. The intensive development of digital technologies and the transformation of consumer habits have changed the way brands communicate with their target audience. Digital platforms have become key tools for building effective communication with consumers, creating unique branding, and strengthening competitive position. Their proper use allows businesses to stand out among competitors, increase awareness, consumer trust and, consequently, sales. In the context of rapid digitalization of the business environment, companies are increasingly focused on integrating the latest technologies to improve interaction with customers, partners and other stakeholders. The article analyzes scientific approaches to defining the concept of communication in the digital space. The advantages of using digital channels to build communication are outlined. Based on the analysis of the main features of digital communications, a comparative analysis of traditional communication channels and digital platforms is carried out. The article presents a list of the most popular digital channels for brand promotion, which provide additional opportunities to expand the impact on the target audience while ensuring targeting and personalization of such impact. Given the rapid development of digital platforms and technologies, the authors of the article highlight the issue of adapting communication management to modern conditions to ensure the effective functioning of business and maintain its competitiveness in the market. Modern digital platforms are becoming an integral part of modern business, offering many advantages over traditional communication channels, as they allow businesses to enter the global market as efficiently and quickly as possible, providing access to customers around the world, allowing businesses to reduce costs for traditional sales channels, and obtain information about the target audience, its behavior, needs, and values. Digital platforms are easily scalable, which allows businesses to adapt to market changes: in the event of an increase in demand, businesses can quickly expand their services or add new capabilities without the need for significant infrastructure investments. In times of crisis or market changes, digital platforms provide businesses with greater flexibility to respond quickly to changes. Online sales channels, support for remote work, and access to analytics help businesses make more informed decisions and quickly adapt to new conditions. These advantages make digital platforms essential tools for businesses seeking to succeed in today's economy, where digitalization plays a key role in achieving competitive advantage.

The media workplace of the future will be an information technologies theme park, where technical distinctions among the attractions will blur and everyone will speak the same language-digital. --Janis (1991) Dutch Fork High School in Irmo, S.C. has an online edition of its newspaper, The Renaissance.(2) High school students are applying digital technologies to traditional skills. Will college and communication programs attract and accommodate today's high school students? This paper presents a concept that may help increase enrollment by attracting computer-literate students. At the Raleigh (North Carolina) News Observer, digitized information skills for using computers, databases, online services-are becoming standard for nearly everyone in the newsroom.(3) And a concept called team journalism is enabling multimedia projects. In 1994, the News k Observer created a 16-week series that ran in the paper, aired on local radio and television, and was uploaded onto the Internet via NandO, the paper's online service.(4) During this project, newspaper reporters conducted videotaped and audiotaped interviews intended for broadcast. Will employers, such as the Raleigh News & Observer, recruit today's and communication graduates? This paper presents a concept that may improve an academic unit's service to a communications industry that is digitizing its newsrooms. New positions have been created to staff online services. Boston Globe Electronic Publishing, a subsidiary of The Boston Globe newspaper, has announced employment opportunities for developing news, advertising and information services for consumer online distribution, the Internet, and other emerging interactive platforms.(5) The positions included: development director, advertising manager, editorial manager, marketing coordinator, graphics/design coordinator, and content developers/entrepreneurs, Houston Chronicle Interactive has announced employment opportunities.(6) The positions included: content developers, electronic media wire editors, communications coordinator, electronic media producers, marketing services specialist, member services coordinator, audiotext coordinator, software developers, systems technician, and system administrator. Do current curricula reflect these organizational developments? This article presents a curriculum called digital communications, an idea that synthesizes current developments in the structure of academic units, the structure of media organizations, and emerging media routines. As Dutch Fork High School's nameplate suggests, a renaissance has begun. Whether it is called a communication, information, or technological revolution, rapid changes within the U.S. media system coupled with ways of thinking about communication processes and content challenge media educators to rethink curricular structures and what and how they teach. This challenge calls for flexible, integrated, and innovative media courses and curricula; it means a movement away from narrowly conceived media-specific sequences based on industrial configurations toward broad-based, cross-media, integrative models; the teaching of ideas and skills that transcend the narrow occupational focus of specific, entry-level, job-related protocols; demassifying the concept of communication to incorporate the study of intrapersonal and interpersonal communication and their relationship to mass forms of communication distribution; and, finally, rethinking how people teach and how learning environments can be enhanced with the use of technologies.(7) Blanchard & Christ(8) describe a curriculum for a new professionalism in media education programs. To grossly oversimplify their work, they propose a core curriculum based on perspectives and knowledge--including what they call a conceptual map of communication processes and their context within historical, legal-ethical, institutional, social, economic, and other social systems. …