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Sample records for wireless audience response

  1. Audience response systems: technology to engage learners.

    Science.gov (United States)

    Collins, Jannette

    2008-09-01

    An audience response system (ARS) provides a means of infusing interaction into a traditional didactic lecture format, enhancing student attention and learning. It can be used in a variety of ways, with both large and small audiences, to evaluate participants' knowledge, attitudes, and opinions or to verify student attendance at a lecture. The technology of ARS has markedly improved over the years, resulting in systems that are less costly and easier to use. Commercial systems that can be rented or purchased as well as local systems that can be downloaded free via the Internet are available. In this essay, the author reviews the components of an ARS, the history of ARS, educational outcomes related to ARS use, the benefits and limitations of ARS, tips for using an ARS, and current developments in ARS.

  2. The Use of an Audience Response System in an Elementary School-Based Health Education Program

    Science.gov (United States)

    DeSorbo, Alexandra L.; Noble, James M.; Shaffer, Michele; Gerin, William; Williams, Olajide A.

    2013-01-01

    Background: The audience response system (ARS) allows students to respond and interact anonymously with teachers via small handheld wireless keypads. Despite increasing popularity in classroom settings, the application of these devices to health education programming has not been studied. We assessed feasibility, engagement, and learning among…

  3. Audience

    DEFF Research Database (Denmark)

    Schrøder, Kim Christian; Gulbrandsen, Ib Tunby

    2018-01-01

    The entry defines audiences in a digital, mediatized society as the people who, in their capacity of social actors, are attending to, negotiating the meaning of, and sometimes participating in the multimodal processes initiated or carried by institutional media. The first part of the entry...... paradigm, and the participation paradigm. The third part discusses the ways in which the audience perspective has been handled in the field of strategic communication, noting for instance how the concept of stakeholders has developed as an alternative to, or refinement of, the traditional understanding...... of an audience as a static and coherent group of organisational outsiders. Also in many cases there is no ‘the audience’, but instead, multiple actors who listen to, and participate, in the organisation’s strategic communication....

  4. Audience Responses and the Context of Political Speeches

    OpenAIRE

    Choi, Hyangmi; Bull, Peter; Reed, Darren James

    2016-01-01

    Previous studies showed that cultural dimensions (individualism and collectivism) are related to audience behavior in responding to political speeches. However, this study suggests that speech context is an important issue to be considered in understanding speaker-audience interaction in political speeches. Forms of response, audience behavior, and response rates were analyzed in three speech contexts: acceptance speeches to nomination as political parties’ candidates for presidential electio...

  5. Audience Responses and the Context of Political Speeches

    Directory of Open Access Journals (Sweden)

    Hyangmi Choi

    2016-11-01

    Full Text Available Previous studies showed that cultural dimensions (individualism and collectivism are related to audience behavior in responding to political speeches. However, this study suggests that speech context is an important issue to be considered in understanding speaker-audience interaction in political speeches. Forms of response, audience behavior, and response rates were analyzed in three speech contexts: acceptance speeches to nomination as political parties’ candidates for presidential election, presidential election campaign speeches, and presidential inauguration speeches in the Korean presidential election of 2012. We found that audience response forms and behavior were distinctive according to the three speech contexts: in-group partisan leadership, competitive, and formal contexts. However, there was no relationship between the affiliative response rate and electoral success in the election. The function of the audience response is popularity and support of a speaker in acceptance and election campaign speeches, while it is conformity to social norms in inauguration speeches.

  6. Consider Clicking In: Using Audience Response Systems to Spark Discussion

    Science.gov (United States)

    Barbour, Joshua B.

    2013-01-01

    Audience response systems, also known as clickers, hold much promise for use in the communication classroom. Yet potential benefits notwithstanding, implementing new technology in the classroom also offers challenges for faculty who must master it themselves while managing students' learning. Successful clicker implementation, like the…

  7. New Scenarios for Audience Response Systems in University Lectures

    Science.gov (United States)

    Schön, Daniel; Kopf, Stephan; Klinger, Melanie; Guthier, Benjamin

    2016-01-01

    Mobile devices like smartphones and tablet PCs are widely used among university students and can be used for audience response systems (clicker systems) to improve teaching. Modern implementations of these systems are no longer limited to plain multiple-choice questions, but enable the lecturers to perform a variety of teaching scenarios. We…

  8. Audience responses to television news coverage of medical advances: The mediating role of audience emotions and identification.

    Science.gov (United States)

    Hong, Hyehyun

    2015-08-01

    Exemplifying a real person in news stories has become a popular journalistic technique to describe an event or issue. With the frequent appearance of medical news reports in local television in recent years, this news presentation style is widely believed to help audiences better engage in and understand complex medical information and to influence their perceptions and judgments. In terms of television news coverage of medical advances, this study investigates how audiences respond to embedded human examples (mainly patients who experience benefits from the advances) and to overall news stories, and how such responses are related to their perception of portrayed medical advances. The experimental results indicate that news stories with a human example were more likely to intensify the audience's positive emotions than those without, which in turn influenced favorable perceptions of the described medical advance. In addition, the extent to which the audience identified with a human example (in particular, sympathy) mediated the relationship between the audience's involvement in the news story and its perception of the portrayed medical advance. © The Author(s) 2014.

  9. Audience response techniques for 21st century radiology education.

    Science.gov (United States)

    Richardson, Michael L

    2014-07-01

    Audience response system (ARS) provides an excellent tool for improving interactive learning in radiology residents. However, it is not the technology but the pedagogy that matters the most. It is long past time to upgrade our ARS teaching techniques to match our ARS technology. In this article, several problems with current usage of ARS are discussed and several prescriptions for improving this are presented. Simplifying the ease of use of ARS will get this useful technology into more hands. Using ARS in a bidirectional manner will give us an even better idea of how and what our students are learning. Asking questions on the fly will obviate the usual tedium of multiple-choice questions and allow us to quiz our students in a much more natural manner. It is time to move on to more innovative ARS techniques that are well adapted to radiology and its different styles of learning. Copyright © 2014 AUR. Published by Elsevier Inc. All rights reserved.

  10. Assessment of microbiology students' progress with an audience response system.

    Science.gov (United States)

    Chaudhry, M Ahmad

    2011-01-01

    The development of new approaches to teaching of large lecture courses is needed. Today's classroom has a wide range of students including high-achieving motivated learners, students struggling to understand basic concepts, and learning-challenged students. Many of these students can be lost in large classes under the shadow of the high-achieving extroverted students who dominate classroom question-and-answer sessions. Measuring a student's understanding and achievement of content standards becomes difficult until an assessment has been done. To close this gap, an audience response system was introduced in an introductory Principles of Microbiology course. This technology specifically addressed the goal of individualizing instruction to the needs of the students. The evaluation of this project indicated an overall positive impact on student learning.

  11. Assessment of Microbiology Students’ Progress With an Audience Response System

    Directory of Open Access Journals (Sweden)

    M. Ahmad Chaudhry

    2011-09-01

    Full Text Available The development of new approaches to teaching of large lecture courses is needed. Today’s classroom has a wide range of students including high-achieving motivated learners, students struggling to understand basic concepts, and learning-challenged students. Many of these students can be lost in large classes under the shadow of the high-achieving extroverted students who dominate classroom question-and-answer sessions. Measuring a student’s understanding and achievement of content standards becomes difficult until an assessment has been done. To close this gap, an audience response system was introduced in an introductory Principles of Microbiology course. This technology specifically addressed the goal of individualizing instruction to the needs of the students. The evaluation of this project indicated an overall positive impact on student learning.

  12. Experiences of faculty and students using an audience response system in the classroom.

    Science.gov (United States)

    Thomas, Christine M; Monturo, Cheryl; Conroy, Katherine

    2011-07-01

    The advent of innovative technologies, such as the audience response system, provides an opportunity to engage students and enhance learning. Based on their experiences, three nursing faculty evaluated the use of an audience response system in four distinct nursing courses through the use of informal survey results. When using the audience response system, the faculty experienced an increased perception of student attentiveness and engagement, high level of class attendance, and enhanced learning. Faculty feelings were mixed concerning the burden in adapting to increased classroom time and increased preparation time. Students' perception of the value of audience response system use was mostly positive, except when responses were included as part of the grade. The majority of the students indicated that use of the audience response system enhanced learning and was a helpful learning method when used with NCLEX-style questions. Overall, faculty believed that the benefits of student engagement and enhanced learning outweighed the burdens of incorporating this new technology in the classroom.

  13. Teaching Engineering Dynamics by Use of Peer Instruction Supported by an Audience Response System

    Science.gov (United States)

    Schmidt, Bjarne

    2011-01-01

    The use of electronic audience response systems in university teaching is currently increasing rapidly. This paper describes how a consistent use of peer instruction facilitated by an audience response system has been introduced in an introductory engineering dynamics course. Data are presented that reveal that this teaching style leads to an…

  14. Renewing Audience Response in Study of Medieval Literature.

    Science.gov (United States)

    Harrington, David V.

    Although modern readers often find the interpretation of medieval literature difficult, they should be encouraged to use their imagination to resolve the dilemmas they encounter. Often, these are the same issues with which medieval audiences had to wrestle and which the poets intended to raise. W. Iser's and H. R. Jauss's principles of…

  15. Exploring Individual Differences in Attitudes toward Audience Response Systems

    Directory of Open Access Journals (Sweden)

    Robin Kay

    2009-09-01

    Full Text Available The purpose of this study was to examine individual differences in attitudes toward Audience Response Systems (ARSs in secondary school classrooms. Specifically, the impact of gender, grade, subject area, computer comfort level, participation level, and type of use were examined in 659 students. Males had significantly more positive attitudes toward ARSs than female students. Students who were more comfortable with computers had significantly more positive attitudes than students who were less comfortable. Students who did not actively participate in class before ARSs were used were more positive about this tool than students who regularly participated. Finally, students were significantly more positive about ARSs when they were used for formative (not for grades as opposed to summative (for grades assessment. There were no significant differences observed for grade level or subject area taught. Résumé La présente étude visait à étudier les variations personnelles dans la disposition des élèves du secondaire envers l’utilisation de systèmes de réponse, ou télévoteurs, en classe. Plus précisément, l’étude a examiné l’impact du sexe, de l’année d’études, de la matière, de l’aisance en informatique, du niveau de participation et du type d’utilisation sur 659 élèves. La disposition des garçons envers les télévoteurs était significativement meilleure que celle des filles. De plus, les élèves les plus à l’aise avec les ordinateurs avaient une réponse significativement plus positive que les élèves moins à l’aise. Les élèves qui ne participaient pas activement en classe avant l’utilisation de télévoteurs avaient quant à eux une attitude plus positive envers cet outil que les élèves qui participaient déjà régulièrement. Enfin, les élèves démontraient une attitude plus favorable envers les télévoteurs lorsque ceux-ci étaient utilisés aux fins d’évaluations formatives (non not

  16. Communicating corporate social responsibility to suspicious audiences: beyond identity washing

    NARCIS (Netherlands)

    Elving, W.; van Vuuren, M.; Bech-Larsen, T.; Frandsen, F.

    2010-01-01

    Organizations need good reputations among their stakeholders. One way of creating a better reputation might be the engagement in Corporate Social Responsibility (CSR) or Corporate Responsibility (CR) programs. However, since several organizations were greenwashing their communication (suggesting a

  17. Audience response and expressive pitch inflections in a live recording of legendary singer Kesar Bai Kerkar

    NARCIS (Netherlands)

    van der Meer, W.; Fabian, D.; Timmers, R.; Schubert, E.

    2014-01-01

    This chapter examines several "snapshots" from a recording by the legendary singer Kesar Bai Kerkar (1892-1977), in which the customary audience response to a concert of classical Hindustani music, in the form of appreciative verbal interjections, is clearly audible. These responses identify

  18. LAIX-score : a design framework for live audience interaction management systems

    OpenAIRE

    Kuikkaniemi, Kai

    2017-01-01

    This study focuses on computer-supported live audience interaction. In conventional lectures audience interacts explicitly with the performer for example by waving hand and asking question directly or clapping hands. For decades, non digital audience response systems have enabled simple multiple option audience interaction patterns. Modern mobile personal computing devices, digital projectors, wireless networks and real time software platforms enable creation of new kinds of interaction patte...

  19. Using Audience Response Systems to Encourage Student Engagement and Reflection on Ethical Orientation and Behavior

    Science.gov (United States)

    Micheletto, Melinda J.

    2011-01-01

    The purpose of this study was to use an audience response system (ARS) to engage students in classroom discussions concerning sensitive and controversial topics (e.g., business ethics), assess student's ethical orientation and conduct in unethical behaviors, and encourage reflection on their personal level of ethicality. Students used ARS devices…

  20. Influence of Audience Response System Technology on Student Performance in Organic Chemistry Lecture Class

    Science.gov (United States)

    Lyubartseva, Ganna

    2013-01-01

    The use of audience response system (commonly known as clickers) supports communication and interactivity in class by allowing the instructor to ask thought-provoking questions and encouraging students to articulate and reflect their thinking, reveal misconceptions, probe the knowledge and follow their progress in the course. Recent studies on the…

  1. Assessing the Integration of Audience Response System Technology in Teaching of Anatomical Sciences

    Science.gov (United States)

    Alexander, Cara J.; Crescini, Weronika M.; Juskewitch, Justin E.; Lachman, Nirusha; Pawlina, Wojciech

    2009-01-01

    The goals of our study were to determine the predictive value and usability of an audience response system (ARS) as a knowledge assessment tool in an undergraduate medical curriculum. Over a three year period (2006-2008), data were collected from first year didactic blocks in Genetics/Histology and Anatomy/Radiology (n = 42-50 per class). During…

  2. Evidence-based clicker use: Audience Response Systems for rehabilitation nurses.

    Science.gov (United States)

    Miller, Mindi; Hartung, Sheila Q

    2012-01-01

    An Audience Response System (ARS) commonly used in schools and universities was studied for its benefit in rehabilitation. Audience response systems or "clickers" are technological tools for promoting interactive learning. Clickers were studied for their applicability to clinical settings as well. Current literature shows evidence-based research and best practices for clicker use within schools. This study expanded ARS into the rehabilitation milieu and then analyzed learner opinions and outcomes. Qualitative data was obtained from both professional and patient groups. Clickers were used while presenting research findings at conferences, when conducting staff seminars, and during client support groups and subsequent educational sessions. Response graphs and decision trees illustrate the flexibility of ARS for helping educators match presentation content to audience feedback. Clickers narrowed the gap between those with expertise and those with minimal experience, since immediate clarification was given according to clicker results. ARS helped to engage listeners, which is consistent with clicker research conducted in academic environments. With clickers, the knowledge and viewpoints of participants can be instantly graphed and displayed, and pertinent information can be provided in real-time. Examples from rehabilitation scenarios depict benefits of Audience Response Systems beyond academia. © 2012 Association of Rehabilitation Nurses.

  3. Good experiences with an audience response system used in medical education

    DEFF Research Database (Denmark)

    Jensen, Jacob Vad; Ostergaard, Doris; Faxholt, Anne-Kathrine Hove

    2011-01-01

    Audience response systems (ARS) are increasingly being used to heighten participants' involvement. Knowledge of technical and pedagogical challenges is, however, limited. The purpose of this paper is to evaluate ARS as a tool for 1) evaluation, 2) knowledge testing, 3) attention raising and 4) di...

  4. A Forensic Readiness Model for Wireless Networks

    OpenAIRE

    Ngobeni, Sipho; Venter, Hein; Burke, Ivan

    2010-01-01

    International audience; Over the past decade, wireless mobile communications technology based on IEEE 802.11 wireless local area networks (WLANs) has been adopted worldwide on a massive scale. However, as the number of wireless users has soared, so has the possibility of cyber crime, where criminals deliberately and actively break into WLANs with the intent to cause harm or access sensitive information. WLAN digital forensics is seen not only as a response to cyber crime in wireless environme...

  5. Playful hyper-responsibility and the making of a performing audience

    DEFF Research Database (Denmark)

    Knudsen, Hanne; Andersen, Niels Åkerstrøm

    2016-01-01

    system sees itself as depending on the student to succeed in creating learning; the health system sees itself as depending on the patient to succeed in promoting health. Responsibility games are one method used to make citizens responsible. In this paper we argue that these games and other present.......g. patient or student) is challenged by a new hybrid, "the performing audience". The citizen is both an object of treatment and investigation, - with the professional as the expert - , and a performer, regarding him/herself through the eyes of the system in order to take responsibility....

  6. Examining the benefits of learning based on an audience response system when confronting emergency situations.

    Science.gov (United States)

    Fernández-Alemán, José Luis; García, Ana Belén Sánchez; Montesinos, María José López; Jiménez, Juan José López

    2014-05-01

    This article presents an empirical study on the effectiveness of the use of an audience response system called SIstema De Respuesta inmediata de la Audiencia on a nursing course. A total of 130 students of mixed gender, age, and computer experience and educational background on a third-year course in nursing administration and management participated in the study. The benefits of an audience response system as regards learning how to confront emergency situations were studied. The innovative aspect of the proposal is twofold: (1) the use of a smartphone to respond to the questions and (2) the analysis of the students' response time when confronting critical situations while managing nursing resources. A positive impact on the students' performance was revealed in their final assessments. Our findings show that SIstema De Respuesta inmediata de la Audiencia increases student participation and aids in identifying and correcting misconceptions. The students found SIstema De Respuesta inmediata de la Audiencia to be very motivating and wanted it to be used in additional lectures. Further research is required to study the effectiveness of SIstema De Respuesta inmediata de la Audiencia for it to be widely used in other disciplines.

  7. An Innovative Approach for Community Engagement: Using an Audience Response System

    Science.gov (United States)

    Davis, Jenna L.; McGinnis, Kara E.; Walsh, Margaret L.; Williams, Coni; Sneed, Kevin B.; Baldwin, Julie A.; Green, B. Lee

    2012-01-01

    Community-based participatory research methods allow for community engagement in the effort to reduce cancer health disparities. Community engagement involves health professionals becoming a part of the community in order to build trust, learn from the community and empower them to reduce disparities through their own initiatives and ideas. Audience Response Systems (ARS) are an innovative and engaging way to involve the community and obtain data for research purposes using keypads to report results via power point. The use of ARS within communities is very limited and serves to widen the disparity gap by not delivering new advances in medical knowledge and technology among all population groups. ARS was implemented at a community town hall event sponsored by a National Institute on Minority Health and Health Disparities Exploratory Center of Excellence, the Center for Equal Health. Participants appreciated being able to see how everyone else answered and felt included in the research process. ARS is beneficial because the community can answer truthfully and provides instant research results. Additionally, researchers can collect large amounts of data quickly, in a non-threatening way while tracking individual responses anonymously. Audience Response Systems proved to be an effective tool for successfully accomplishing community-based participatory research. PMID:23302776

  8. Use of an audience response system (ARS) in a dual-campus classroom environment.

    Science.gov (United States)

    Medina, Melissa S; Medina, Patrick J; Wanzer, Donald S; Wilson, Jane E; Er, Nelson; Britton, Mark L

    2008-04-15

    To implement an audience response system in a dual-campus classroom that aggregated data during graded (attendance and quizzes) and non-graded classroom activities (formative quizzes, case discussions, examination reviews, and team activities) and explore its strengths, weaknesses, and impact on active learning. After extensive research, an appropriate audience response system was selected and implemented in a dual-classroom setting for a third-year required PharmD course. Students were assigned a clicker and training and policies regarding clicker use were reviewed. Activities involving clicker use were carefully planned to simultaneously engage students in both classrooms in real time. Focus groups were conducted with students to gather outcomes data. Students and faculty members felt that the immediate feedback the automated response system (ARS) provided was most beneficial during non-graded activities. Student anxiety increased with use of ARS during graded activities due to fears regarding technology failure, user error, and academic integrity. ARS is a viable tool for increasing active learning in a doctor of pharmacy (PharmD) program, especially when used for non-graded class activities. Faculty members should proceed cautiously with using ARS for graded classroom activities and develop detailed and documented policies for ARS use.

  9. Among the Authentic Audience: Young Adults' Perceptions and Responses to Youth as Scientists

    Science.gov (United States)

    Patchen, Amie K.

    Lifelong science learning is important for making informed decisions on science topics, and there is a need to engage broader and more diverse audiences with science. One opportunity for engagement occurs when students share science topics with a public audience. Research indicates this interaction can have benefits for students, but little is known about the impact it may have on audience members’ thoughts about science. Youth are different from typical sources of science information, and may elicit different reactions. This dissertation examines the impact youth sources may have on adults’ perceptions of and responses to science topics. Young adults (N = 399) were randomly assigned to one of two scenarios. Both scenarios stated two individuals would describe research they had done about local air quality on the news. One scenario identified the individuals as local high school students, and the other as research scientists from a local institution. Dependent variables included perceptions of the warmth and competence of the presenters, expectations of the quality of the information they would share, willingness to take action based on that information, and general trust in scientists. A subset of participants (N=22) was selected for cognitive interviews and asked to explain the thoughts that influenced their survey responses. Results showed multiple reactions to the scenario. Three groups were identified in the perceptions data: one expressed trust in the presenters, one expressed skepticism, and one based their perceptions on personal experiences doing science. Participants said intertwined thoughts about trust in scientists and assumptions about the presenters’ intentions influenced perceptions, with an overall assumption that youth would have good intentions while adults might not. Participants did not appear to separate their expectations of the information from the people who would share it. However, their willingness to take action was related to the

  10. Engaging students in active learning: use of a blog and audience response system.

    Science.gov (United States)

    Abate, Laura E; Gomes, Alexandra; Linton, Anne

    2011-01-01

    Librarians provide instruction to medical students as part of a core course in the medical school curriculum. Instruction was provided, in part, through didactic sessions covering professional-level medical information resources, PubMed search skills, psychosocial information, and evidence-based medicine. Librarians redesigned instructional sessions with the goals of increasing student engagement and minimizing the lecture format, maximizing the number of students receiving feedback on their search and evaluation skills, and permitting students to see a variety of possible responses as well as engage in peer- and self-evaluation. Librarians integrated the use of a blog and an audience response system (ARS) into the instruction to help accomplish these goals.

  11. Facial EMG responses to odors in solitude and with an audience.

    Science.gov (United States)

    Jäncke, L; Kaufmann, N

    1994-04-01

    Two experiments were undertaken to examine whether facial responses to odors correlate with the hedonic odor evaluation. Experiment 1 examined whether subjects (n = 20) spontaneously generated facial movements associated with odor evaluation when they are tested in private. To measure facial responses, EMG was recorded over six muscle regions (M. corrugator supercilii, M. procerus, M. nasalis, M. levator, M. orbicularis oculi and M. zygomaticus major) using surface electrodes. In experiment 2 the experimental group (n = 10) smelled the odors while they were visually inspected by the experimenter sitting in front of the test subjects. The control group (n = 10) performed the same experimental condition as those subjects participating in experiment 1. Facial EMG over four mimetic muscle regions (M. nasalis, M. levator, M. zygomaticus major, M. orbicularis oculi) was measured while subjects smelled different odors. The main findings of this study may be summarized as follows: (i) there was no correlation between valence rating and facial EMG responses; (ii) pleasant odors did not evoke smiles when subjects smelled the odors in private; (iii) in solitude, highly concentrated malodors evoked facial EMG reactions of those mimetic muscles which are mainly involved in generating a facial display of disgust; (iv) those subjects confronted with an audience showed stronger facial reactions over the periocular and cheek region (indicative of a smile) during the smelling of pleasant odors than those who smelled these odors in private; (v) those subjects confronted with an audience showed stronger facial reactions over the M. nasalis region (indicative of a display of disgust) during the smelling of malodors than those who smelled the malodors in private. These results were taken as evidence for a more social communicative function of facial displays and strongly mitigates the reflexive-hedonic interpretation of facial displays to odors as supposed by Steiner.

  12. Evaluation of the Acceptance of Audience Response System by Corporations Using the Technology Acceptance Model

    Science.gov (United States)

    Chu, Hsing-Hui; Lu, Ta-Jung; Wann, Jong-Wen

    The purpose of this research is to explore enterprises' acceptance of Audience Response System (ARS) using Technology Acceptance Model (TAM). The findings show that (1) IT characteristics and facilitating conditions could be external variables of TAM. (2) The degree of E-business has positive significant correlation with behavioral intention of employees. (3) TAM is a good model to predict and explain IT acceptance. (4) Demographic variables, industry and firm characteristics have no significant correlation with ARS acceptance. The results provide useful information to managers and ARS providers that (1) ARS providers should focus more on creating different usages to enhance interactivity and employees' using intention. (2) Managers should pay attention to build sound internal facilitating conditions for introducing IT. (3) According to the degree of E-business, managers should set up strategic stages of introducing IT. (4) Providers should increase product promotion and also leverage academic and government to promote ARS.

  13. Evaluating the effect of interactive audience response systems on the perceived learning experience of nursing students.

    Science.gov (United States)

    Porter, Ava G; Tousman, Stuart

    2010-09-01

    Interactive Audience Response Systems (ARS) are widely used as tools to promote active learning in the classroom in many disciplines. Researchers have found that ARS technology with question-driven instruction (QDI) makes classroom instruction more student centered, while creating an environment for active learning. The purpose of this study was to evaluate the effect of ARS with QDI in one bachelors of science in nursing course on the perceived learning experience of the students. ARS technology with QDI was used in a beginning medical-surgical class of junior-level students throughout one semester. Descriptive statistical analyses indicated that nursing students positively evaluated the effect of ARS with QDI on their learning. Qualitative analyses indicated that students had better understanding of the material via post-question discussion of the rationales for answers, enhanced NCLEX-RN preparation, and increased interactivity, which led to paying more attention in class.

  14. Improving Community Understanding of Medical Research: Audience Response Technology for Community Consultation for Exception to Informed Consent

    Directory of Open Access Journals (Sweden)

    Taher Vohra

    2014-07-01

    Full Text Available Introduction: The Department of Health and Human Services and Food and Drug Administration described guidelines for exception from informed consent (EFIC research. These guidelines require community consultation (CC events, which allow members of the community to understand the study, provide feedback and give advice. A real-time gauge of audience understanding would allow the speaker to modify the discussion. The objective of the study is to describe the use of audience response survey (ARS technology in EFIC CCs. Methods: As part of the Rapid Anticonvulsant Medication Prior to Arrival Trial (RAMPART, 13 CC events were conducted. We prepared a PowerPoint™ presentation with 4 embedded ARS questions,according to specific IRB guidelines to ensure that the pertinent information would reach our targeted audience. During 6 CCs, an ARS was used to gauge audience comprehension. Participants completed paper surveys regarding their opinion of the study following each CC. Results: The ARS was used with minimal explanation and only one ARS was lost. Greater than 80% of the participants correctly answered 3 of the 4 ARS questions with 61% correctly answering the question regarding EFIC. A total of 105 participants answered the paper survey; 80-90% of the responses to the paper survey were either strongly agree or agree. The average scores on the paper survey in the ARS sites compared to the non-ARS sites were significantly more positive. Conclusion: The use of an audience response system during the community consultation aspects of EFIC is feasible and provides a real-time assessment of audience comprehension of the study and EFIC process. It may improve the community’s opinion and support of the study.

  15. Prediction of Audience Response from Spoken Sequences, Speech Pauses and Co-speech Gestures in Humorous Discourse by Barack Obama

    DEFF Research Database (Denmark)

    Navarretta, Costanza

    2017-01-01

    In this paper, we aim to predict audience response from simple spoken sequences, speech pauses and co-speech gestures in annotated video- and audio-recorded speeches by Barack Obama at the Annual White House Correspondents’ Association Dinner in 2011 and 2016. At these dinners, the American...... president mocks himself, his collaborators, political adversary and the press corps making the audience react with cheers, laughter and/or applause. The results of the prediction experiment demonstrate that information about spoken sequences, pauses and co-speech gestures by Obama can be used to predict...

  16. Supporting Active Learning in an Undergraduate Geotechnical Engineering Course Using Group-Based Audience Response Systems Quizzes

    Science.gov (United States)

    Donohue, Shane

    2014-01-01

    The use of audience response systems (ARSs) or "clickers" in higher education has increased over the recent years, predominantly owing to their ability to actively engage students, for promoting individual and group learning, and for providing instantaneous feedback to students and teachers. This paper describes how group-based ARS…

  17. Adult English Language Learners' Perceptions of Audience Response Systems (Clickers) as Communication Aides: A Q-Methodology Study

    Science.gov (United States)

    Rodriguez, Lisa Ann; Shepard, MaryFriend

    2013-01-01

    This study explored the perceptions of adult English language learners about audience response systems (clickers) as tools to facilitate communication. According to second language acquisition theory, learners' receptive capabilities in the early stages of second language acquisition surpass expressive capabilities, often rendering them silent in…

  18. Predicting the Probability for Faculty Adopting an Audience Response System in Higher Education

    Directory of Open Access Journals (Sweden)

    Tan Fung Ivan Chan

    2016-08-01

    Full Text Available Instructional technologies can be effective tools to foster student engagement, but university faculty may be reluctant to integrate innovative and evidence-based modern learning technologies into instruction. Based on Rogers’ diffusion of innovation theory, this quantitative, nonexperimental, one-shot cross-sectional survey determined what attributes of innovation (relative advantage, compatibility, complexity, trialability, and observability predict the probability of faculty adopting the audience response system (ARS into instruction. The sample of the study consisted of 201 faculty at a university in the southeastern United States. Binary logistic regression analysis was used to determine the attributes of innovation that predict the probability of faculty adopting the ARS into instruction. Out of the five attributes, compatibility and trialability made significant contributions to the model. The implication of the findings is that, in order to maximize adoption, the faculty needs to be given the opportunity to pre-test the ARS prior to implementation, and they need to know how the technology will assist them in achieving their pedagogical goals. Recommendations were made to leverage these attributes to foster faculty adoption of the ARS into instruction.

  19. Audience response technology: engaging and empowering non-medical prescribing students in pharmacology learning.

    Science.gov (United States)

    Lymn, Joanne S; Mostyn, Alison

    2010-10-27

    Non-medical prescribing (NMP) is a six month course for nurses and certain allied health professionals. It is critical that these students develop a good understanding of pharmacology; however, many students are mature learners with little or no formal biological science knowledge and struggle with the pharmacology component. The implications for patient safety are profound, therefore we encourage students not just to memorise enough pharmacology to pass the exam but to be able to integrate it into clinical practice. Audience response technology (ART), such as the KeePad system (KS) has been shown to promote an active approach to learning and provide instant formative feedback. The aim of this project, therefore, was to incorporate and evaluate the use the KS in promoting pharmacology understanding in NMP students. Questions were incorporated into eight pharmacology lectures, comprising a mix of basic and clinical pharmacology, using TurningPoint software. Student (n = 33) responses to questions were recorded using the KS software and the percentage of students getting the question incorrect and correct was made immediately available in the lecture in graphical form. Survey data collected from these students investigated student perceptions on the use of the system generally and specifically as a learning tool. More in depth discussion of the usefulness of the KS was derived from a focus group comprising 5 students. 100% of students enjoyed using the KS and felt it promoted their understanding of key concepts; 92% stated that it helped identify their learning needs and 87% agreed that the technology was useful in promoting integration of concepts. The most prevalent theme within feedback was that of identifying their own learning needs. Analysis of data from the focus group generated similar themes, with the addition of improving teaching. Repeated questioning produced a significant increase (p learning needs and promoted understanding and integration of concepts

  20. Ultrafast transient responses of optical wireless communication detectors.

    Science.gov (United States)

    Jin, Xian; Collier, Christopher M; Garbowski, Jamieson J A; Born, Brandon; Holzman, Jonathan F

    2013-07-10

    In this work, fundamental ultrafast transient responses are studied for optical wireless communication (OWC) detectors. It is shown that material impulse responses, associated with transient photoconductivity, and geometrical input responses, associated with transient optical power, must be considered in tandem when OWC photodetection is pursued with broad spectral and directional characteristics. An OWC detector, composed of GaAs photoconductive gaps in a corner-cube geometry, is fabricated and analyzed. The GaAs material response times are investigated experimentally and found to range from approximately 3 ps to 200 fs for 390 nm (violet) to 780 nm (red) photoexcitation. The geometrical response times are investigated theoretically and found to range from approximately 2 to 20 ps for device dimensions from 1 to 10 mm. The overall response times manifest themselves in two distinct dimensional regimes, with differing levels of wavelength and dimension dependence. The relevance of these findings is discussed for future ultrafast OWC detectors.

  1. Using Audience Response Systems to Enhance Chronic, Noncancer Pain Knowledge Acquisition Among Veterans.

    Science.gov (United States)

    Simmons, Elizabeth B; Cosio, David; Lin, Erica H

    2015-07-01

    Educating patients on factual information related to chronic pain and self-management improves knowledge, pain outcomes, and compliance. The current study assesses changes in pain knowledge among veterans who attended a 12-week "Pain Education School" and examines whether or not the addition of an active learning component (i.e., use of an audience response system [ARS]) leads to greater increases in pain knowledge. A sample of 102 veterans 24-84 years of age who elected to participate in the 12-week pain education program was evaluated. Only a subgroup of veterans (n=69) had access to the ARS. A 2×2 repeated-measures multivariate analyses of variance was conducted to examine changes in pain knowledge, pain beliefs, stage of readiness to adopt a self-management approach, and depressive symptoms over time and to explore the impact of ARS use on pain knowledge acquisition. Participants reported a statistically significant difference between their pre- and posttest measures of pain beliefs (p=0.04), stage of readiness to adopt a self-management approach (p=0.00), and depressive symptoms (p=0.00). Veterans who used the ARS demonstrated significantly greater increases in pain knowledge acquisition after completing the pain education program than those who did not (p=0.03). Findings provide support for the incorporation of ARS in pain education programming to facilitate active learning and to increase knowledge acquisition. Findings also provide evidence for the effectiveness of pain education programs in improving veterans' attitudes about their pain, increasing readiness to engage in self-management, and decreasing depressive symptoms.

  2. Audience responses to a film in rural Zimbabwe | Gecau | Journal of ...

    African Journals Online (AJOL)

    The main body of the paper discusses a study done in 1997 on the reactions of audiences to a "development" film in rural Zimbabwe. Such a once-off study, as the paper argues, cannot yield conclusive results. However the virtue of such a study is to point at possibilities of other such studies in the future which should also ...

  3. Audience response technology: Engaging and empowering non-medical prescribing students in pharmacology learning

    Directory of Open Access Journals (Sweden)

    Mostyn Alison

    2010-10-01

    Full Text Available Abstract Background Non-medical prescribing (NMP is a six month course for nurses and certain allied health professionals. It is critical that these students develop a good understanding of pharmacology; however, many students are mature learners with little or no formal biological science knowledge and struggle with the pharmacology component. The implications for patient safety are profound, therefore we encourage students not just to memorise enough pharmacology to pass the exam but to be able to integrate it into clinical practice. Audience response technology (ART, such as the KeePad system (KS has been shown to promote an active approach to learning and provide instant formative feedback. The aim of this project, therefore, was to incorporate and evaluate the use the KS in promoting pharmacology understanding in NMP students. Methods Questions were incorporated into eight pharmacology lectures, comprising a mix of basic and clinical pharmacology, using TurningPoint software. Student (n = 33 responses to questions were recorded using the KS software and the percentage of students getting the question incorrect and correct was made immediately available in the lecture in graphical form. Survey data collected from these students investigated student perceptions on the use of the system generally and specifically as a learning tool. More in depth discussion of the usefulness of the KS was derived from a focus group comprising 5 students. Results 100% of students enjoyed using the KS and felt it promoted their understanding of key concepts; 92% stated that it helped identify their learning needs and 87% agreed that the technology was useful in promoting integration of concepts. The most prevalent theme within feedback was that of identifying their own learning needs. Analysis of data from the focus group generated similar themes, with the addition of improving teaching. Repeated questioning produced a significant increase (p Conclusions The use

  4. Enhancing student learning with case-based teaching and audience response systems in an interdisciplinary Food Science course

    Directory of Open Access Journals (Sweden)

    Davide Giacalone

    2016-09-01

    Overall, it was observed that the particular initiatives were effective in engaging student participation and promoting a more active way of learning. Case-base teaching provided students with the opportunity to apply their knowledge and their analytical skills to complex, real-life scenarios relevant to the subject matter. The use of audience response systems further facilitated class discussion, and was extremely well received by the students, providing a more enjoyable classroom experience.

  5. Playful hyper-responsibility and the making of a performing audience

    DEFF Research Database (Denmark)

    Knudsen, Hanne; Andersen, Niels Åkerstrøm

    2016-01-01

    welfare politics striving to increase personal responsibility do not simply increase responsibility, they have at least two important effects: 1. With responsibility games personal responsibility is no longer presumed, and the form of personal responsibility is dislocated into a form of playful hyper...

  6. The use of audience response system technology with limited-english-proficiency, low-literacy, and vulnerable populations.

    Science.gov (United States)

    Keifer, Matthew C; Reyes, Iris; Liebman, Amy K; Juarez-Carrillo, Patricia

    2014-01-01

    Audience response systems (ARS) have long been used to improve the interactivity of educational activities. Most studies of ARS have addressed education of literate trainees. How well these devices work with low-literacy subjects is not well studied. Information gathering on the training audience is an important use of ARS and helpful in improving the targeting of training information. However, obtaining demographic information from vulnerable populations with reasons to be concerned about divulging information about themselves has not been tested. In addition, a culturally competent method to effectively collect demographic and evaluation data of this growing population is essential. This project investigated the use of ARS to gather information from Hispanic immigrant workers, many of whom are socially vulnerable and have limited English proficiency (LEP) and low-literacy. Workers attended focus groups and were asked to use ARS devices or clickers to respond to questions. Questions were both categorical (multiple choice) and open-ended numerical (text entry), and varied from simple queries to more sensitive points regarding immigration. Most workers answered the one-key response categorical questions with little difficulty. In contrast, some participants struggled when responding to numerical questions, especially when the response required pressing multiple clicker keys. An overwhelming majority of participants reported that the clickers were comfortable and easy to use despite the challenges presented by the more complex responses. The error rate increased as question complexity increased and the trend across three ordered categories of response complexity reached statistical significance. Results suggest that ARS is a viable method for gathering dichotomous or higher-order categorical information from LEP and low-literacy populations in a group setting while assuring anonymity. However, it is recommended that clickers be developed and tested with fewer, bigger

  7. Teaching Note--Ask the Audience: Using Student Response Systems in Social Work Education

    Science.gov (United States)

    Friedline, Terri; Mann, Aaron R.; Lieberman, Alice

    2013-01-01

    Social work educators are uniquely tasked with balancing content while helping students evaluate personal biases and develop ethical conduct necessary for social work professionalism. Social work education may benefit from technology like Student Response Systems (SRS) that allow educators to pose questions on sensitive topics in real time while…

  8. “Clicking” with your audience: Evaluating the use of personal response systems in library instruction

    Directory of Open Access Journals (Sweden)

    Emily K. Chan

    2011-03-01

    Full Text Available University of the Pacific librarians used personal response systems (PRS or clickers in first-year mandatory library instructional sessions to assess their effects on student engagement and retention of learning outcomes. Students who utilized clickers during their library session reported greater enjoyment and encouragement to participate (n=291. Students in the sessions not utilizing the clickers achieved better learning outcomes than their counterparts who utilized clickers (n=326. The implications of these results are discussed, specifically within the context of pedagogy and tailoring instruction to the Millennial generation.

  9. An Empirical Study of Neural Network-Based Audience Response Technology in a Human Anatomy Course for Pharmacy Students.

    Science.gov (United States)

    Fernández-Alemán, José Luis; López-González, Laura; González-Sequeros, Ofelia; Jayne, Chrisina; López-Jiménez, Juan José; Carrillo-de-Gea, Juan Manuel; Toval, Ambrosio

    2016-04-01

    This paper presents an empirical study of a formative neural network-based assessment approach by using mobile technology to provide pharmacy students with intelligent diagnostic feedback. An unsupervised learning algorithm was integrated with an audience response system called SIDRA in order to generate states that collect some commonality in responses to questions and add diagnostic feedback for guided learning. A total of 89 pharmacy students enrolled on a Human Anatomy course were taught using two different teaching methods. Forty-four students employed intelligent SIDRA (i-SIDRA), whereas 45 students received the same training but without using i-SIDRA. A statistically significant difference was found between the experimental group (i-SIDRA) and the control group (traditional learning methodology), with T (87) = 6.598, p SIDRA and the methodology used during the process of learning anatomy (M = 4.59). The new empirical contribution presented in this paper allows instructors to perform post hoc analyses of each particular student's progress to ensure appropriate training.

  10. Effect of audience response system technology on learning outcomes in health students and professionals: an updated systematic review.

    Science.gov (United States)

    Atlantis, Evan; Cheema, Birinder S

    2015-03-01

    : Audience response system (ARS) technology is a recent innovation that is increasingly being used by health educators to improve learning outcomes. Equivocal results from previous systematic review research provide weak support for the use of ARS for improving learning outcomes at both short and long terms. This review sought to update and critically review the body of controlled experimental evidence on the use of ARS technology on learning outcomes in health students and professionals. This review searched using all identified keywords both electronic databases (CINAHL, Embase, ERIC, Medline, Science Direct, Scopus, and Web of Science) and reference lists of retrieved articles to find relevant published studies for review, from 2010 to April 2014. A descriptive synthesis of important study characteristics and effect estimates for learning outcomes was done. Three controlled trials in 321 participants from the United States were included for review. ARS knowledge retention scores were lower than the control group in one study, higher than control group provided that immediate feedback was given about each question in one study, and equivalent between intervention and control groups in another study. There is an absence of good quality evidence on effectiveness of ARS technologies for improving learning outcomes in health students and professionals.

  11. Response of Caenorhabditis elegans to wireless devices radiation exposure.

    Science.gov (United States)

    Fasseas, Michael K; Fragopoulou, Adamantia F; Manta, Areti K; Skouroliakou, Aikaterini; Vekrellis, Konstantinos; Margaritis, Lukas H; Syntichaki, Popi

    2015-03-01

    To examine the impact of electromagnetic radiation, produced by GSM (Global System for Mobile communications) mobile phones, Wi-Fi (Wireless-Fidelity) routers and wireless DECT (Digital Enhanced Cordless Telecommunications) phones, on the nematode Caenorhabditis elegans. We exposed synchronized populations, of different developmental stages, to these wireless devices at E-field levels below ICNIRP's (International Commission on Non-Ionizing Radiation Protection) guidelines for various lengths of time. WT (wild-type) and aging- or stress-sensitive mutant worms were examined for changes in growth, fertility, lifespan, chemotaxis, short-term memory, increased ROS (Reactive Oxygen Species) production and apoptosis by using fluorescent marker genes or qRT-PCR (quantitative Reverse Transcription-Polymerase Chain Reaction). No statistically significant differences were found between the exposed and the sham/control animals in any of the experiments concerning lifespan, fertility, growth, memory, ROS, apoptosis or gene expression. The worm appears to be robust to this form of (pulsed) radiation, at least under the exposure conditions used.

  12. The Response of Different Audiences to Place-based Communication about the Role of Climate Change in Extreme Weather Events

    Science.gov (United States)

    Halperin, A.; Walton, P.

    2015-12-01

    As the science of extreme event attribution grows, there is an increasing need to understand how the public responds to this type of climate change communication. Extreme event attribution has the unprecedented potential to locate the effects of climate change in the here and now, but there is little information about how different facets of the public might respond to these local framings of climate change. Drawing on theories of place attachment and psychological distance, this paper explores how people with different beliefs and values shift their willingness to mitigate and adapt to climate change in response to local or global communication of climate change impacts. Results will be presented from a recent survey of over 600 Californians who were each presented with one of three experimental conditions: 1) a local framing of the role of climate change in the California drought 2) a global framing of climate change and droughts worldwide, or 3) a control condition of no text. Participants were categorized into groups based on their prior beliefs about climate change according to the Six Americas classification scheme (Leiserowitz et al., 2011). The results from the survey in conjunction with qualitative results from follow-up interviews shed insight into the importance of place in communicating climate change for people in each of the Six Americas. Additional results examine the role of gender and political affiliation in mediating responses to climate change communication. Despite research that advocates unequivocally for local framing of climate change, this study offers a more nuanced perspective of under which circumstances extreme event attribution might be an effective tool for changing behaviors. These results could be useful for scientists who wish to gain a better understanding of how their event attribution research is perceived or for educators who want to target their message to audiences where it could have the most impact.

  13. Examination of wireless technology to improve nurse communication, response time to bed alarms, and patient safety.

    Science.gov (United States)

    Guarascio-Howard, Linda

    2011-01-01

    A medical-surgical unit in a southwestern United States hospital examined the results of adding wireless communication technology to assist nurses in identifying patient bed status changes and enhancing team communication. Following the addition of wireless communication, response time to patient calls and the number of nurse-initiated communications were compared to pre-wireless calls and response time sampling period. In the baseline study, nurse-initiated communications and response time to patient calls were investigated for a team nursing model (Guarascio-Howard & Malloch, 2007). At this time, technology consisted of a nurse call system and telephones located at each decentralized nurse station and health unit coordinator (HUC) station. For this follow-up study, a wireless device was given to nurses and their team members following training on device use and privacy issues. Four registered nurses (RNs) were shadowed for 8 hours (32 hours total) before and after the introduction of the wireless devices. Data were collected regarding patient room visits, number of patient calls, bed status calls, response time to calls, and the initiator of the communication episodes. Follow-up study response time to calls significantly decreased (t-test p = .03). RNs and licensed practical nurses responded to bed status calls in less than 1 minute-62% of the 37 calls. Communication results indicated a significant shift (One Proportion Z Test) in RN-initiated communications, suggesting an enhanced ability to communicate with team members and to assist in monitoring patient status. Patient falls trended downward, although not significantly (p > .05), for a 6-month period of wireless technology use compared to the same period the previous year. The addition of a wireless device has advantages in team nursing, namely increasing communication with staff members and decreasing response time to patient and bed status calls. Limitations of the study included a change in caregiver team

  14. Student perceptions of gamified audience response system interactions in large group lectures and via lecture capture technology.

    Science.gov (United States)

    Pettit, Robin K; McCoy, Lise; Kinney, Marjorie; Schwartz, Frederic N

    2015-05-22

    Higher education students have positive attitudes about the use of audience response systems (ARS), but even technology-enhanced lessons can become tiresome if the pedagogical approach is exactly the same with each implementation. Gamification is the notion that gaming mechanics can be applied to routine activities. In this study, TurningPoint (TP) ARS interactions were gamified and implemented in 22 large group medical microbiology lectures throughout an integrated year 1 osteopathic medical school curriculum. A 32-item questionnaire was used to measure students' perceptions of the gamified TP interactions at the end of their first year. The survey instrument generated both Likert scale and open-ended response data that addressed game design and variety, engagement and learning features, use of TP questions after class, and any value of lecture capture technology for reviewing these interactive presentations. The Chi Square Test was used to analyze grouped responses to Likert scale questions. Responses to open-ended prompts were categorized using open-coding. Ninety-one students out of 106 (86 %) responded to the survey. A significant majority of the respondents agreed or strongly agreed that the games were engaging, and an effective learning tool. The questionnaire investigated the degree to which specific features of these interactions were engaging (nine items) and promoted learning (seven items). The most highly ranked engagement aspects were peer competition and focus on the activity (tied for highest ranking), and the most highly ranked learning aspect was applying theoretical knowledge to clinical scenarios. Another notable item was the variety of interactions, which ranked in the top three in both the engagement and learning categories. Open-ended comments shed light on how students use TP questions for exam preparation, and revealed engaging and non-engaging attributes of these interactive sessions for students who review them via lecture capture

  15. Implementation of an iPhone wireless accelerometer application for the quantification of reflex response.

    Science.gov (United States)

    LeMoyne, Robert; Mastroianni, Timothy; Grundfest, Warren; Nishikawa, Kiisa

    2013-01-01

    The patellar tendon reflex represents an inherent aspect of the standard neurological evaluation. The features of the reflex response provide initial perspective regarding the status of the nervous system. An iPhone wireless accelerometer application integrated with a potential energy impact pendulum attached to a reflex hammer has been successfully developed, tested, and evaluated for quantifying the patellar tendon reflex. The iPhone functions as a wireless accelerometer platform. The wide coverage range of the iPhone enables the quantification of reflex response samples in rural and remote settings. The iPhone has the capacity to transmit the reflex response acceleration waveform by wireless transmission through email. Automated post-processing of the acceleration waveform provides feature extraction of the maximum acceleration of the reflex response ascertained after evoking the patellar tendon reflex. The iPhone wireless accelerometer application demonstrated the utility of the smartphone as a biomedical device, while providing accurate and consistent quantification of the reflex response.

  16. Effectiveness of an audience response system on orthodontic knowledge retention of undergraduate dental students – a randomised control trial

    Science.gov (United States)

    Robson, Nicholas; Popat, Hashmat; Richmond, Stephen; Farnell, Damian J. J.

    2015-01-01

    Objective:: To determine the effect of an audience response system (ARS) on knowledge retention of dental students and to gauge student perceptions of using the ARS. Design:: Randomised control study. Setting:: School of Dentistry, Cardiff University. Participants:: Seventy four second-year dental students were stratified by gender and randomised anonymously to one of two groups. Methods:: One group received a lecture on orthodontic terminology and diagnosis in a traditional didactic format and the other received the same lecture integrated with ARS slides. Students completed an assessment of multiple-choice questions (MCQs) scored out of 20, before and immediately after the lecture. Students were also asked to complete a self-reported questionnaire on their perceptions of ARS. Results:: Both groups had statistically significant increases in MCQ scores post-lecture (ARS mean increase 3.6 SD2.0, 95% CI 2.2–3.5 and Didactic mean increase 2.9 SD2.3, 95% CI 2.8–4.3). A mixed-design analysis of variance showed that ARS led to an improved MCQ score (by 0.8 or 25%) compared to the didactic group, although this effect was not significant (P = 0.15). The effect of gender at baseline (P = 0.49), post-lecture (P = 0.73) and increase in MCQ score split by group (P = 0.46) was also not significant. Students reported that the ARS was easy to use, helped them engage with the lecture and encouraged them to work harder. Conclusion:: The ARS did not lead to a significant increase in short-term orthodontic knowledge recall of students compared with didactic teaching. However, the use of ARS within orthodontic teaching could make lectures more interactive and engaging. PMID:26282015

  17. Effectiveness of an audience response system on orthodontic knowledge retention of undergraduate dental students--a randomised control trial.

    Science.gov (United States)

    Robson, Nicholas; Popat, Hashmat; Richmond, Stephen; Farnell, Damian J J

    2015-01-01

    To determine the effect of an audience response system (ARS) on knowledge retention of dental students and to gauge student perceptions of using the ARS. Randomised control study. School of Dentistry, Cardiff University. Seventy four second-year dental students were stratified by gender and randomised anonymously to one of two groups. One group received a lecture on orthodontic terminology and diagnosis in a traditional didactic format and the other received the same lecture integrated with ARS slides. Students completed an assessment of multiple-choice questions (MCQs) scored out of 20, before and immediately after the lecture. Students were also asked to complete a self-reported questionnaire on their perceptions of ARS. Both groups had statistically significant increases in MCQ scores post-lecture (ARS mean increase 3.6 SD2.0, 95% CI 2.2-3.5 and Didactic mean increase 2.9 SD2.3, 95% CI 2.8-4.3). A mixed-design analysis of variance showed that ARS led to an improved MCQ score (by 0.8 or 25%) compared to the didactic group, although this effect was not significant (P = 0.15). The effect of gender at baseline (P = 0.49), post-lecture (P = 0.73) and increase in MCQ score split by group (P = 0.46) was also not significant. Students reported that the ARS was easy to use, helped them engage with the lecture and encouraged them to work harder. The ARS did not lead to a significant increase in short-term orthodontic knowledge recall of students compared with didactic teaching. However, the use of ARS within orthodontic teaching could make lectures more interactive and engaging.

  18. An evaluation of learning clinical decision-making for early rehabilitation in the ICU via interactive education with audience response system.

    Science.gov (United States)

    Toonstra, Amy L; Nelliot, Archana; Aronson Friedman, Lisa; Zanni, Jennifer M; Hodgson, Carol; Needham, Dale M

    2017-06-01

    Knowledge-related barriers to safely implement early rehabilitation programs in intensive care units (ICUs) may be overcome via targeted education. The purpose of this study was to evaluate the effectiveness of an interactive educational session on short-term knowledge of clinical decision-making for safe rehabilitation of patients in ICUs. A case-based teaching approach, drawing from published safety recommendations for initiation of rehabilitation in ICUs, was used with a multidisciplinary audience. An audience response system was incorporated to promote interaction and evaluate knowledge before vs. after the educational session. Up to 175 audience members, of 271 in attendance (129 (48%) physical therapists, 51 (19%) occupational therapists, 31 (11%) nursing, 14 (5%) physician, 46 (17%) other), completed both the pre- and post-test questions for each of the six unique patient cases. In four of six patient cases, there was a significant (pcorrect answer regarding initiation of rehabilitation activities. This learning effect was similar irrespective of participants' years of experience and clinical discipline. An interactive, case-based, educational session may be effective for increasing short-term knowledge, and identifying knowledge gaps, regarding clinical decision-making for safe rehabilitation of patients in ICUs. Implications for Rehabilitation Lack of knowledge regarding the safety considerations for early rehabilitation of ICU patients is a barrier to implementing early rehabilitation. Interactive educational formats, such as the use of audience response systems, offer a new method of teaching and instantly assessing learning of clinically important information. In a small study, we have shown that an interactive, case-based educational format may be used to effectively teach clinical decision-making for the safe rehabilitation of ICU patients to a diverse audience of clinicians.

  19. Using Audience Response Technology to provide formative feedback on pharmacology performance for non-medical prescribing students - a preliminary evaluation

    Science.gov (United States)

    2012-01-01

    Background The use of anonymous audience response technology (ART) to actively engage students in classroom learning has been evaluated positively across multiple settings. To date, however, there has been no empirical evaluation of the use of individualised ART handsets and formative feedback of ART scores. The present study investigates student perceptions of such a system and the relationship between formative feedback results and exam performance. Methods Four successive cohorts of Non-Medical Prescribing students (n=107) had access to the individualised ART system and three of these groups (n=72) completed a questionnaire about their perceptions of using ART. Semi-structured interviews were carried out with a purposive sample of seven students who achieved a range of scores on the formative feedback. Using data from all four cohorts of students, the relationship between mean ART scores and summative pharmacology exam score was examined using a non-parametric correlation. Results Questionnaire and interview data suggested that the use of ART enhanced the classroom environment, motivated students and promoted learning. Questionnaire data demonstrated that students found the formative feedback helpful for identifying their learning needs (95.6%), guiding their independent study (86.8%), and as a revision tool (88.3%). Interviewees particularly valued the objectivity of the individualised feedback which helped them to self-manage their learning. Interviewees’ initial anxiety about revealing their level of pharmacology knowledge to the lecturer and to themselves reduced over time as students focused on the learning benefits associated with the feedback. A significant positive correlation was found between students’ formative feedback scores and their summative pharmacology exam scores (Spearman’s rho = 0.71, N=107, p<.01). Conclusions Despite initial anxiety about the use of individualised ART units, students rated the helpfulness of the individualised

  20. Using Audience Response Technology to provide formative feedback on pharmacology performance for non-medical prescribing students - a preliminary evaluation

    Directory of Open Access Journals (Sweden)

    Mostyn Alison

    2012-11-01

    Full Text Available Abstract Background The use of anonymous audience response technology (ART to actively engage students in classroom learning has been evaluated positively across multiple settings. To date, however, there has been no empirical evaluation of the use of individualised ART handsets and formative feedback of ART scores. The present study investigates student perceptions of such a system and the relationship between formative feedback results and exam performance. Methods Four successive cohorts of Non-Medical Prescribing students (n=107 had access to the individualised ART system and three of these groups (n=72 completed a questionnaire about their perceptions of using ART. Semi-structured interviews were carried out with a purposive sample of seven students who achieved a range of scores on the formative feedback. Using data from all four cohorts of students, the relationship between mean ART scores and summative pharmacology exam score was examined using a non-parametric correlation. Results Questionnaire and interview data suggested that the use of ART enhanced the classroom environment, motivated students and promoted learning. Questionnaire data demonstrated that students found the formative feedback helpful for identifying their learning needs (95.6%, guiding their independent study (86.8%, and as a revision tool (88.3%. Interviewees particularly valued the objectivity of the individualised feedback which helped them to self-manage their learning. Interviewees’ initial anxiety about revealing their level of pharmacology knowledge to the lecturer and to themselves reduced over time as students focused on the learning benefits associated with the feedback. A significant positive correlation was found between students’ formative feedback scores and their summative pharmacology exam scores (Spearman’s rho = 0.71, N=107, p Conclusions Despite initial anxiety about the use of individualised ART units, students rated the helpfulness of the

  1. Audience information needs assessment

    International Nuclear Information System (INIS)

    Nealey, S.M.; Sutthoff, A.B.

    1988-01-01

    According to the authors public involvement is absolutely indispensable to the successful implementation of waste disposal programs, and communication is absolutely indispensable for successful public involvement. Frequent, effective, and open two-way communication is the primary mechanism through which non-technical issues can be raised, discussed and eventually resolved. Public information programs developed by the agencies responsible for waste disposal are supposed to contribute to this process, but it is the authors contention that they frequently fall short for a simple reason they are insufficiently consumer oriented. They do not adequately assess the information needs of the various publics with which they are supposed to facilitate effective communication. In the language of communication models, attention is given to the messages the agency wishes to send, but not enough attention is given to feedback from the audiences the agency is addressing. A set of audience information needs assessment methods have evolved that can go a long way toward answering these questions. Seven of these methods are described and illustrated with examples from on-going radioactive waste management programs

  2. A surface acoustic wave response detection method for passive wireless torque sensor

    Science.gov (United States)

    Fan, Yanping; Kong, Ping; Qi, Hongli; Liu, Hongye; Ji, Xiaojun

    2018-01-01

    This paper presents an effective surface acoustic wave (SAW) response detection method for the passive wireless SAW torque sensor to improve the measurement accuracy. An analysis was conducted on the relationship between the response energy-entropy and the bandwidth of SAW resonator (SAWR). A self-correlation method was modified to suppress the blurred white noise and highlight the attenuation characteristic of wireless SAW response. The SAW response was detected according to both the variation and the duration of energy-entropy ascension of an acquired RF signal. Numerical simulation results showed that the SAW response can be detected even when the signal-to-noise ratio (SNR) is 6dB. The proposed SAW response detection method was evaluated with several experiments at different conditions. The SAW response can be well distinguished from the sinusoidal signal and the noise. The performance of the SAW torque measurement system incorporating the detection method was tested. The obtained repeatability error was 0.23% and the linearity was 0.9934, indicating the validity of the detection method.

  3. The Beijing Audience Study.

    Science.gov (United States)

    Rogers, Everett M.; And Others

    1985-01-01

    Although communication research in China is in an early stage of development, an increasing number of training/research activities exist in universities and institutes. The 1982 Beijing Audience Survey, the first large-scale communication field study in China, reports how mass media audiences (newspaper, radio, and television) are rapidly…

  4. Front Row Seats: Preparing Young Audiences for Live Performances

    Science.gov (United States)

    Rajan, Rekha S.

    2016-01-01

    The idea of audience etiquette brings with it specific expectations influenced by both the social context and the performance genre. While audience response has traditionally been viewed as passive, performers are finding new and innovative ways of actively engaging young audiences, seeking immediate response, inviting exploration, and encouraging…

  5. Perelman's Universal Audience.

    Science.gov (United States)

    Ray, John W.

    1978-01-01

    Examines the concept of the universal audience as the basic factor of Chaim Perelman's rhetorical theory and concludes that it is subject to the same criticism as Rousseau's general will and Kant's categorical imperative. (JMF)

  6. Enhancing Student Learning with Case-Based Teaching and Audience Response Systems in an Interdisciplinary Food Science Course

    Science.gov (United States)

    Giacalone, Davide

    2016-01-01

    The purpose of this article is to discuss the implementation of case-based teaching and use of response technologies to graduate students in a food science course. The article focuses on teaching sensory science and sensometrics, presents several concrete examples used during the course, and discusses in each case some of the observed outcomes.…

  7. OnlineTED.com--a novel web-based audience response system for higher education. A pilot study to evaluate user acceptance.

    Science.gov (United States)

    Kühbeck, Felizian; Engelhardt, Stefan; Sarikas, Antonio

    2014-01-01

    Audience response (AR) systems are increasingly used in undergraduate medical education. However, high costs and complexity of conventional AR systems often limit their use. Here we present a novel AR system that is platform independent and does not require hardware clickers or additional software to be installed. "OnlineTED" was developed at Technische Universität München (TUM) based on Hypertext Preprocessor (PHP) with a My Structured Query Language (MySQL)-database as server- and Javascript as client-side programming languages. "OnlineTED" enables lecturers to create and manage question sets online and start polls in-class via a web-browser. Students can participate in the polls with any internet-enabled device (smartphones, tablet-PCs or laptops). A paper-based survey was conducted with undergraduate medical students and lecturers at TUM to compare "OnlineTED" with conventional AR systems using clickers. "OnlineTED" received above-average evaluation results by both students and lecturers at TUM and was seen on par or superior to conventional AR systems. The survey results indicated that up to 80% of students at TUM own an internet-enabled device (smartphone or tablet-PC) for participation in web-based AR technologies. "OnlineTED" is a novel web-based and platform-independent AR system for higher education that was well received by students and lecturers. As a non-commercial alternative to conventional AR systems it may foster interactive teaching in undergraduate education, in particular with large audiences.

  8. OnlineTED.com − a novel web-based audience response system for higher education. A pilot study to evaluate user acceptance

    Directory of Open Access Journals (Sweden)

    Kühbeck, Felizian

    2014-02-01

    Full Text Available [english] Background and aim: Audience response (AR systems are increasingly used in undergraduate medical education. However, high costs and complexity of conventional AR systems often limit their use. Here we present a novel AR system that is platform independent and does not require hardware clickers or additional software to be installed.Methods and results: “OnlineTED” was developed at Technische Universität München (TUM based on Hypertext Preprocessor (PHP with a My Structured Query Language (MySQL-database as server- and Javascript as client-side programming languages. “OnlineTED” enables lecturers to create and manage question sets online and start polls in-class via a web-browser. Students can participate in the polls with any internet-enabled device (smartphones, tablet-PCs or laptops. A paper-based survey was conducted with undergraduate medical students and lecturers at TUM to compare "OnlineTED" with conventional AR systems using clickers. "OnlineTED" received above-average evaluation results by both students and lecturers at TUM and was seen on par or superior to conventional AR systems. The survey results indicated that up to 80% of students at TUM own an internet-enabled device (smartphone or tablet-PC for participation in web-based AR technologies.Summary and Conclusion: “OnlineTED” is a novel web-based and platform-independent AR system for higher education that was well received by students and lecturers. As a non-commercial alternative to conventional AR systems it may foster interactive teaching in undergraduate education, in particular with large audiences.

  9. A prepared speech in front of a pre-recorded audience: subjective, physiological, and neuroendocrine responses to the Leiden Public Speaking Task.

    Science.gov (United States)

    Westenberg, P Michiel; Bokhorst, Caroline L; Miers, Anne C; Sumter, Sindy R; Kallen, Victor L; van Pelt, Johannes; Blöte, Anke W

    2009-10-01

    This study describes a new public speaking protocol for youth. The main question asked whether a speech prepared at home and given in front of a pre-recorded audience creates a condition of social-evaluative threat. Findings showed that, on average, this task elicits a moderate stress response in a community sample of 83 12- to 15-year-old adolescents. During the speech, participants reported feeling more nervous and having higher heart rate and sweatiness of the hands than at baseline or recovery. Likewise, physiological (heart rate and skin conductance) and neuroendocrine (cortisol) activity were higher during the speech than at baseline or recovery. Additionally, an anticipation effect was observed: baseline levels were higher than recovery levels for most variables. Taking the anticipation and speech response together, a substantial cortisol response was observed for 55% of participants. The findings indicate that the Leiden Public Speaking Task might be particularly suited to investigate individual differences in sensitivity to social-evaluative situations.

  10. The effect of using an audience response system on learning, motivation and information retention in the orthodontic teaching of undergraduate dental students: a cross-over trial.

    Science.gov (United States)

    Dhaliwal, Harmeet Kaur; Allen, Mark; Kang, Jing; Bates, Claire; Hodge, Trevor

    2015-06-01

    New methods of teaching and learning are constantly being sought in the adult learning environment. Audience Response Systems (ARS) have been used in many different learning environments, especially in the field of medical education. The objective of this investigation was to ascertain the effect of ARS use in undergraduate teaching in a UK dental school. A cross-over clustered randomized educational trial. Leeds Dental Institute. Year 4 undergraduate dental students in orthodontics. Students at Leeds Dental Institute were taught two different topics within the curriculum to test the use of ARS in a cross-over trial. A questionnaire was delivered to the test (ARS) and control (non-ARS) groups. The response rate to the questionnaires was 89·5% (test group) and 82·9% (control group). The ARS enabled students to perform better as shown by knowledge retention (P = 0·013). Students found the seminar more interesting (P = 0·013), easier to concentrate (P = 0·025) and easier to participate in (P = 0·020) when ARS was used. When ARS was used, students were more able to answer questions (Pteaching and significantly improved knowledge retention. ARS may be useful in facilitating orthodontic teaching in the future.

  11. Low Complexity Signed Response Based Sybil Attack Detection Mechanism in Wireless Sensor Networks

    Directory of Open Access Journals (Sweden)

    M. Saud Khan

    2016-01-01

    Full Text Available Security is always a major concern in wireless sensor networks (WSNs. Identity based attacks such as spoofing and sybil not only compromise the network but also slow down its performance. This paper proposes a low complexity sybil attack detection scheme, that is, based on signed response (SRES authentication mechanism developed for Global System for Mobile (GSM communications. A probabilistic model is presented which analyzes the proposed authentication mechanism for its probability of sybil attack. The paper also presents a simulation based comparative analysis of the existing sybil attack schemes with respect to the proposed scheme. It is observed that the proposed sybil detection scheme exhibits lesser computational cost and power consumption as compared to the existing schemes for the same sybil detection performance.

  12. Low-complexity Wireless Monitoring of Respiratory Movements Using Ultra-wideband Impulse Response Estimation

    KAUST Repository

    Sana, Furrukh

    2014-03-01

    In this paper; we present a comprehensive scheme for wireless monitoring of the respiratory movements in humans. Our scheme overcomes the challenges low signal-to-noise ratio, background clutter and high sampling rates. It is based on the estimation of the ultra-wideband channel impulse response. We suggest techniques for dealing with background clutter in situations when it might be time variant. We also present a novel methodology for reducing the required sampling rate of the system significantly while achieving the accuracy offered by the Nyquist rate. Performance results from simulations conducted with pre-recorded respiratory signals demonstrate the robustness of our scheme for tackling the above challenges and providing a low-complexity solution for the monitoring of respiratory movements.

  13. Audiences as citizens

    DEFF Research Database (Denmark)

    Schrøder, Kim Christian

    2013-01-01

    This chapter traces the insights about citizenship offered by audience reception research since its inception in the 1980s, through a theoretical and analytical portrait of five historical stages of reception research about mediated citizenship: (1) hegemonic citizenship; (2) monitorial citizensh...

  14. The effects of audience response systems on learning outcomes in health professions education. A BEME systematic review: BEME Guide No. 21.

    Science.gov (United States)

    Nelson, Cody; Hartling, Lisa; Campbell, Sandra; Oswald, Anna E

    2012-01-01

    Audience response systems (ARS) represent one approach to make classroom learning more active. Although ARS may have pedagogical value, their impact is still unclear. This systematic review aims to examine the effect of ARS on learning outcomes in health professions education. After a comprehensive literature search, two reviewers completed title screening, full-text review and quality assessment of comparative studies in health professions education. Qualitative synthesis and meta-analysis of immediate and longer term knowledge scores were conducted. Twenty-one of 1013 titles were included. Most studies evaluated ARS in lectures (20 studies) and in undergraduates (14 studies). Fourteen studies reported statistically significant improvement in knowledge scores with ARS. Meta-analysis showed greater differences with non-randomised study design. Qualitative synthesis showed greater differences with non-interactive teaching comparators and in postgraduates. Six of 21 studies reported student reaction; 5 favoured ARS while 1 had mixed results. This review provides some evidence to suggest the effectiveness of ARS in improving learning outcomes. These findings are more striking when ARS teaching is compared to non-interactive sessions and when non-randomised study designs are used. This review highlights the importance of having high quality studies with balanced comparators available to those making curricular decisions.

  15. A Game-Theoretic Response Strategy for Coordinator Attack in Wireless Sensor Networks

    Science.gov (United States)

    Liu, Jianhua; Yue, Guangxue; Shang, Huiliang; Li, Hongjie

    2014-01-01

    The coordinator is a specific node that controls the whole network and has a significant impact on the performance in cooperative multihop ZigBee wireless sensor networks (ZWSNs). However, the malicious node attacks coordinator nodes in an effort to waste the resources and disrupt the operation of the network. Attacking leads to a failure of one round of communication between the source nodes and destination nodes. Coordinator selection is a technique that can considerably defend against attack and reduce the data delivery delay, and increase network performance of cooperative communications. In this paper, we propose an adaptive coordinator selection algorithm using game and fuzzy logic aiming at both minimizing the average number of hops and maximizing network lifetime. The proposed game model consists of two interrelated formulations: a stochastic game for dynamic defense and a best response policy using evolutionary game formulation for coordinator selection. The stable equilibrium best policy to response defense is obtained from this game model. It is shown that the proposed scheme can improve reliability and save energy during the network lifetime with respect to security. PMID:25105171

  16. A Game-Theoretic Response Strategy for Coordinator Attack in Wireless Sensor Networks

    Directory of Open Access Journals (Sweden)

    Jianhua Liu

    2014-01-01

    Full Text Available The coordinator is a specific node that controls the whole network and has a significant impact on the performance in cooperative multihop ZigBee wireless sensor networks (ZWSNs. However, the malicious node attacks coordinator nodes in an effort to waste the resources and disrupt the operation of the network. Attacking leads to a failure of one round of communication between the source nodes and destination nodes. Coordinator selection is a technique that can considerably defend against attack and reduce the data delivery delay, and increase network performance of cooperative communications. In this paper, we propose an adaptive coordinator selection algorithm using game and fuzzy logic aiming at both minimizing the average number of hops and maximizing network lifetime. The proposed game model consists of two interrelated formulations: a stochastic game for dynamic defense and a best response policy using evolutionary game formulation for coordinator selection. The stable equilibrium best policy to response defense is obtained from this game model. It is shown that the proposed scheme can improve reliability and save energy during the network lifetime with respect to security.

  17. Audience-response systems for evaluation of pediatric lectures – comparison with a classic end-of-term online-based evaluation

    Directory of Open Access Journals (Sweden)

    Bode, Sebastian Felix Nepomuk

    2015-05-01

    Full Text Available Aim: Course evaluations are often conducted and analyzed well after the course has taken place. By using a digital audience response system (ARS, it is possible to collect, view and discuss feedback during or directly following a course or lecture session. This paper analyzes a student evaluation of a lecture course with ARS to determine if significant differences exist between the results of the ARS lecture evaluation and those of the online evaluation at the end of the semester. In terms of the overall evaluation, consideration is given to the level of students’ prior knowledge, the presentation of the lecture material by the lecturers and the relevance of the lecture topic for students.Method: During the 2011-12 winter semester, the lecture on Pediatrics at the Freiburg Center for Pediatric and Adolescent Medicine ( was evaluated using ARS. Thirty-four lectures were evaluated by an average of 22 (range 8-44 students, who responded to four questions each time an evaluation took place.Results: On a 6-point Likert scale (1=very good to 6=deficient, the students rated their level of preparedness with a mean of 3.18, the presentation of the lecture with 2.44, and the relevance of the lecture topic with 2.19. The overall evaluation of the lecture course by means of ARS resulted in 2.31. The online evaluation conducted at the end of the semester yielded a score of 2.45. Highly significant correlations were seen between the results of the ARS for the overall evaluation, assessment of prior knowledge, lecture presentation, and the estimated relevance of the lecture topic.Conclusion: The use of ARS is suitable for immediate evaluation of lectures, in particular regarding timely feedback for the individual lecturerlecturers. In comparison with an end-of-term evaluation, ARS yielded a better assessment.

  18. Use of an audience response system during peer teaching among physical therapy students in human gross anatomy: perceptions of peer teachers and students.

    Science.gov (United States)

    Wait, Kevin R; Cloud, Beth A; Forster, Lindsey A; Jones, Tiffany M; Nokleby, Jessica J; Wolfe, Cortney R; Youdas, James W

    2009-01-01

    An audience response system (ARS) has become popular among educators in medicine and the health professions because of the system's ability to engage listeners during a lecture presentation. No one has described the usefulness of ARS technology during planned nonlecture peer teaching sessions in gross anatomy instruction for health professionals. The unique feature of each peer teaching session was a nongraded 12-15 item ARS quiz assembled by six second-year doctor of physical therapy (DPT) students and purposely placed at the beginning of the review session for those first-year DPT students in attendance. This study used a ten-item questionnaire and a five-point Likert scale in addition to three open ended questions to survey perceptions of both first-year and second-year DPT students about the usefulness of ARS technology implemented during weekly interactive peer teaching sessions during a semester course in Anatomy for Physical Therapists. First-year students overwhelmingly acknowledged the ARS system permitted each student to self-assess his/her preparedness for a quiz or examination and compare his/her performance with that of classmates. Peer teachers recognized an ARS quiz provided them an opportunity to: (1) estimate first-year students' level of understanding of anatomical concepts; and (2) effectively prepare first-year students for their weekly quizzes and future examinations. On the basis of the mutual benefits derived by both students/tutees and teachers/tutors, physical therapist educators may wish to consider using ARS technology to enhance teaching methods for a class in gross human anatomy.

  19. In search of an audience...

    NARCIS (Netherlands)

    S. Stremersch (Stefan)

    2005-01-01

    textabstractFor an academic, finding an audience is critical. However, finding an audience is not always easy for most marketing academics. This inaugural address explores what the challenges are in finding an audience, among fellow scholars, students, public policy, industry, or society in general.

  20. Discourse swings in understanding audiences:

    DEFF Research Database (Denmark)

    Reinhard, CarrieLynn D.

    and media professionals characterize the role of people in media engagings.  The initial conceptualization of “audience-as-commodity” was challenged by increased recognition of the audience as active consumers, or “audience-as-agent”.  Recently this recognition has led to the Hollywood media industry...

  1. Sleeping with the enemy: Audience

    NARCIS (Netherlands)

    Marloes Mol; Annika van den Berg; Dr. Joke Hermes

    2013-01-01

    Audience studies is not the vibrant field it was in its 1980s and early 1990s heyday. Cultural studies today has a more balanced interest in production, audiences and texts. A renewed focus in audience studies on everyday meaning production, identity and relations of power could benefit from recent

  2. The Trauma Patient Tracking System: implementing a wireless monitoring infrastructure for emergency response.

    Science.gov (United States)

    Maltz, Jonathan; C Ng, Thomas; Li, Dustin; Wang, Jian; Wang, Kang; Bergeron, William; Martin, Ron; Budinger, Thomas

    2005-01-01

    In mass trauma situations, emergency personnel are challenged with the task of prioritizing the care of many injured victims. We propose a trauma patient tracking system (TPTS) where first-responders tag all patients with a wireless monitoring device that continuously reports the location of each patient. The system can be used not only to prioritize patient care, but also to determine the time taken for each patient to receive treatment. This is important in training emergency personnel and in identifying bottlenecks in the disaster response process. In situations where biochemical agents are involved, a TPTS may be employed to determine sites of cross-contamination. In order to track patient location in both outdoor and indoor environments, we employ both Global Positioning System (GPS) and Television/ Radio Frequency (TVRF) technologies. Each patient tag employs IEEE 802.11 (Wi-Fi)/TCP/IP networking to communicate with a central server via any available Wi-Fi basestation. A key component to increase TPTS fault-tolerance is a mobile Wi-Fi basestation that employs redundant Internet connectivity to ensure that tags at the disaster scene can send information to the central server even when local infrastructure is unavailable for use. We demonstrate the robustness of the system in tracking multiple patients in a simulated trauma situation in an urban environment.

  3. Movies: the Audience Favorites

    Directory of Open Access Journals (Sweden)

    Alexander Fedorov

    2016-10-01

    Full Text Available Modern screen art over its success to the use of folklore, myth, synthesis of the natural and supernatural, and a consistent orientation toward the most popular plot schemes. Their metaphorical appeal is not to the rational but to the emotional, through identification with the magic power of heroes and standardization of ideas, situations, characters and so on in compensation for dreams not realized in life, there are illusions – happy endings. In movies, TV shows, and music videos' rhythmic organization, viewers' feelings are influenced as much by the order of changing shots as by the content of productions. On the basis of the foregoing, it can be concluded that the media texts of popular culture obliged to a variety of factors for its success. These include: reliance on folklore and mythological sources, constancy metaphors, focus on consistent implementation of the most persistent plot schemes, the synthesis of the natural and the supernatural, the appeal not to rational and emotional, through the identification of (imaginary transformation in of active characters merge with the atmosphere, the aura of works, “magic power” of heroes, standardization (replication, unification, adaptation ideas, situations, characters, etc., mosaic, seriality, the compensation (of the cherished illusion, but not come true desires, the happy ending, the use of such rhythmic organization movies, TV shows, clips, where the feeling of the audience with the content of the frame affects the order of their shift; intuitive guessing subconscious audience interests, etc.

  4. Graphic Communication for Development in Africa: Target Audience ...

    African Journals Online (AJOL)

    Achieving desired response from target audience is the overall goal for graphic communication in support of development initiatives. However, in Africa, responses to development messages, which are largely determined by target audience perception, are predominantly far from being desired. Therefore, this paper focuses ...

  5. Why do they not answer and do they really learn? A case study in analysing student response flows in introductory physics using an audience response system

    Science.gov (United States)

    Jääskeläinen, Markku; Lagerkvist, Andreas

    2017-07-01

    In this paper we investigate teaching with a classroom response system in introductory physics with emphasis on two issues. First, we discuss retention between question rounds and the reasons why students avoid answering the question a second time. A question with declining response rate was followed by a question addressing the student reasons for not answering. We find that there appear to be several reasons for the observed decline, and that the students need to be reminded. We argue that small drops are unimportant as the process appears to work despite the drops. Second, we discuss the dynamics of learning in a concept-sequence in electromagnetism, where a majority of the students, despite poor statistics in a first round, manage to answer a followup question correctly. In addition, we analyse the response times for both situations to connect with research on student reasoning on situations with misconception-like answers. From the combination of the answer flows and response time behaviours we find it plausible that conceptual learning occurred during the discussion phase.

  6. Why do they not answer and do they really learn? A case study in analysing student response flows in introductory physics using an audience response system

    International Nuclear Information System (INIS)

    Jääskeläinen, Markku; Lagerkvist, Andreas

    2017-01-01

    In this paper we investigate teaching with a classroom response system in introductory physics with emphasis on two issues. First, we discuss retention between question rounds and the reasons why students avoid answering the question a second time. A question with declining response rate was followed by a question addressing the student reasons for not answering. We find that there appear to be several reasons for the observed decline, and that the students need to be reminded. We argue that small drops are unimportant as the process appears to work despite the drops. Second, we discuss the dynamics of learning in a concept-sequence in electromagnetism, where a majority of the students, despite poor statistics in a first round, manage to answer a followup question correctly. In addition, we analyse the response times for both situations to connect with research on student reasoning on situations with misconception-like answers. From the combination of the answer flows and response time behaviours we find it plausible that conceptual learning occurred during the discussion phase. (paper)

  7. "Like throwing a bowling ball at a battle ship" audience responses to Australian news stories about alcohol pricing and promotion policies: a qualitative focus group study.

    Directory of Open Access Journals (Sweden)

    Andrea S Fogarty

    Full Text Available INTRODUCTION: Policies affecting alcohol's price and promotion are effective measures to reduce harms. Yet policies targeting populations are unpopular with the public, whose views can be influenced by news framings of policy narratives. In Australia, alcohol taxation receives high news coverage, while advertising restrictions have not until recently, and narratives are highly contested for each. However, research specifically examining how audiences respond to such news stories is scant. We sought to explore audience understanding of news reports about two alcohol policy proposals. METHOD: From June to August 2012, 46 participants were recruited for 8 focus groups in age-brackets of young people aged 18-25 years, parents of young people, and adults aged 25 or older. Groups were split by education. Participants were asked their prior knowledge of alcohol policies, before watching and discussing four news stories about alcohol taxation and advertising. RESULTS: Participants were clear that alcohol poses problems, yet thought policy solutions were ineffective in a drinking culture they viewed as unamenable to change and unaffected by alcohol's price or promotion. Without knowledge of its actual effect on consumption, they cited the 2008 alcopops tax as a policy failure, blaming cheaper substitution. Participants had low knowledge of advertising restrictions, yet were concerned about underage exposure. They offered conditional support for restrictions, while doubting its effectiveness. There was marked distrust of statistics and news actors in broadcasts, yet discussions matched previous research findings. CONCLUSIONS: News coverage has resulted in strong audience understanding of alcohol related problems but framed solutions have not always provided clear messages, despite audience support for policies. Future advocacy will need to continue recent moves to address the links between alcohol's price and promotion with the drinking culture, as well

  8. Cross-Modal Perception of Noise-in-Music: Audiences Generate Spiky Shapes in Response to Auditory Roughness in a Novel Electroacoustic Concert Setting

    Directory of Open Access Journals (Sweden)

    Kongmeng Liew

    2018-02-01

    Full Text Available Noise has become integral to electroacoustic music aesthetics. In this paper, we define noise as sound that is high in auditory roughness, and examine its effect on cross-modal mapping between sound and visual shape in participants. In order to preserve the ecological validity of contemporary music aesthetics, we developed Rama, a novel interface, for presenting experimentally controlled blocks of electronically generated sounds that varied systematically in roughness, and actively collected data from audience interaction. These sounds were then embedded as musical drones within the overall sound design of a multimedia performance with live musicians, Audience members listened to these sounds, and collectively voted to create the shape of a visual graphic, presented as part of the audio–visual performance. The results of the concert setting were replicated in a controlled laboratory environment to corroborate the findings. Results show a consistent effect of auditory roughness on shape design, with rougher sounds corresponding to spikier shapes. We discuss the implications, as well as evaluate the audience interface.

  9. Cross-Modal Perception of Noise-in-Music: Audiences Generate Spiky Shapes in Response to Auditory Roughness in a Novel Electroacoustic Concert Setting.

    Science.gov (United States)

    Liew, Kongmeng; Lindborg, PerMagnus; Rodrigues, Ruth; Styles, Suzy J

    2018-01-01

    Noise has become integral to electroacoustic music aesthetics. In this paper, we define noise as sound that is high in auditory roughness, and examine its effect on cross-modal mapping between sound and visual shape in participants. In order to preserve the ecological validity of contemporary music aesthetics, we developed Rama , a novel interface, for presenting experimentally controlled blocks of electronically generated sounds that varied systematically in roughness, and actively collected data from audience interaction. These sounds were then embedded as musical drones within the overall sound design of a multimedia performance with live musicians, Audience members listened to these sounds, and collectively voted to create the shape of a visual graphic, presented as part of the audio-visual performance. The results of the concert setting were replicated in a controlled laboratory environment to corroborate the findings. Results show a consistent effect of auditory roughness on shape design, with rougher sounds corresponding to spikier shapes. We discuss the implications, as well as evaluate the audience interface.

  10. EMOTIONAL CONTAGION AND MOOD IN CROWD SERVING AS AUDIENCE

    Directory of Open Access Journals (Sweden)

    Beno Arnejcic

    2015-06-01

    Full Text Available The global world is gradually becoming a world of separated crowds despite the artificial wire and wireless connection through television and the Internet. Crowds remain a prevailing subject of research in different social studies, and the research of changes in the psychological structure of crowds and their characteristics is still of primary interest. The main focus of the research is on the interpretation of the results of the research paper about a special separated crowd called audience. It was observed how students, constituting the crowd, perceive a crowd on video. The observation was focused on the research of emotional contagion and mood in the crowd serving as audience. While watching a mass event on a big screen, the crowd serving as audience emotionally converges with someone else, in our case with public speakers.

  11. Optimizing the Mobilization of Wireless Communications Systems for Disaster Response Efforts

    Science.gov (United States)

    2015-09-01

    link, and network layers of the OSI model . WAN services are provided by data carriers and telephone companies, such as Comcast and ATT. WAN... network (HFN) deployment teams provide critical services to disaster areas. The coordination and control systems they deploy save lives and valuable...widest geographical area. The Military Wireless Communications Research Group and the Hastily Formed Networks Group at the Naval Postgraduate School

  12. Foreigner talk as Audience Design

    OpenAIRE

    横山, 吉樹; Yoshiki, Yokoyama; Hokkaido Musashi Women's Junior College

    1991-01-01

    This paper atternpts to show that foFeigner talk can be con-structively explored in the framework of Audience Design, a concept pFesented by Bell (1983). This paper reviews the history of foreigner talk and explores how previous researchers viewed it. In assessing foreigner talk as audience design, it deals 14th Bell's three assumptions, and attempts to show that foreigner talk is primarily audience design. In aseessing referee design, it Feviews Tarzan talk and baby talk, howing that the ref...

  13. Wireless Access

    Indian Academy of Sciences (India)

    First page Back Continue Last page Overview Graphics. Wireless Access. Wireless connect to the Base station. Easy and Convenient access. Costlier as compared to the wired technology. Reliability challenges. We see it as a complementary technology to the DSL.

  14. WIRELESS PHYSICAL LAYER SECURITY: PART 1

    OpenAIRE

    Saad , Walid; ZHOU , XIANGYUN; Debbah , Mérouane; Poor , H. Vincent

    2015-01-01

    This is an editorial; International audience; The ongoing paradigm shift from classical centralized wireless technologies toward distributed large-scale networks such as the Internet of Things has introduced new security challenges that cannot be fully handled via traditional cryptgraphic means. In such emerging wireless environments , devices have limited capabilities and are not controlled by a central control center; thus, the implementation of computationally expensive cryptographic techn...

  15. Probabilistic Bandwidth Assignment in Wireless Sensor Networks

    OpenAIRE

    Khan , Dawood; Nefzi , Bilel; Santinelli , Luca; Song , Ye-Qiong

    2012-01-01

    International audience; With this paper we offer an insight in designing and analyzing wireless sensor networks in a versatile manner. Our framework applies probabilistic and component-based design principles for the wireless sensor network modeling and consequently analysis; while maintaining flexibility and accuracy. In particular, we address the problem of allocating and reconfiguring the available bandwidth. The framework has been successfully implemented in IEEE 802.15.4 using an Admissi...

  16. The advertising and children's audience

    OpenAIRE

    A.S. Teletov; T.Ye. Ivanova

    2015-01-01

    The aim of article. The article shows that today more and more citizens supply from advertising. Children's perception of the world is radically different from the adults’ perception. Modern advertising industry affects children's audience more and more. The aim of the article is to analyze the impact of advertising on children's audience with further proposals. The results of the analysis. Some social critics believe that advertising provides new information that helps to be more adaptive...

  17. In search of the invisble (audiences)

    DEFF Research Database (Denmark)

    Kaun, Anne; Hartley, Jannie Møller; Juzefovičs, Jānis

    2016-01-01

    that are literally invisible including practices of lurking in social media environments as well as unintended audiences. The literature review of research of the past ten years on invisible audiences identifies important gaps for both forms of invisible audiences. In conclusion, we suggest more extensive research......The paper presents an overview over research that considers invisible audiences. Fundamentally we understand media audiences as ‘people who receive, co-create, interpret, understand and appropriate media messages’ (Reifová and Pavlíčková, 2013:130). Within this realm, we identify and define...... invisible audiences in a twofold way. Firstly we consider research on audience groups that have been marginalized by both mainstream media and mainstream audience studies such as post-socialist audiences, working class audiences and very young audiences. Secondly we consider audience groups...

  18. Videoethnographic approaches to audience research

    DEFF Research Database (Denmark)

    Wildermuth, Norbert

      In my paper I will explore the methodological uses and epistemological consequences of videoethnography in audience studies. With reference to research done on young people and their media appropriations in Recife (Brazil), in December 2005, I will argue for the creative integration of video...... recordings in doing mediaethnographic audience research. Moreover, I will discuss the use and potentials of hypermedia in presenting the results of ethnographic audience research. Based on recent conceptualisations and theories of hypermodality and multimodal ethnography (Lemke, 2002; Idema, 2003; Dicks......'. Finally, considerations regarding a planned hypermediated presentation of my research project in Recife, will be related to the experiences made with video as tool of mediaethnographic investigation and analysis. How the potential of non-sequentiality enshrined in hypermedia applications can...

  19. Zigbee Wireless Sensor Network Nodes Deployment Strategy for Digital Agricultural Data Acquisition

    OpenAIRE

    Xiang , Xinjian; Guo , Xiaoqing

    2009-01-01

    International audience; ZigBee is an emerging wireless network technology, according to china's digital agricultural feature such as remote, dispersion, variability and diversity, the ZigBee-based wireless sensor network for digital agricultural data acquisition is one of the best ways to build the system. In this paper, based on ZigBee wireless sensor network deployment planning principles and the status of our digital agriculture, we study several ZigBee wireless sensor network nodes deploy...

  20. Wireless virtualization

    CERN Document Server

    Wen, Heming; Le-Ngoc, Tho

    2013-01-01

    This SpringerBriefs is an overview of the emerging field of wireless access and mobile network virtualization. It provides a clear and relevant picture of the current virtualization trends in wireless technologies by summarizing and comparing different architectures, techniques and technologies applicable to a future virtualized wireless network infrastructure. The readers are exposed to a short walkthrough of the future Internet initiative and network virtualization technologies in order to understand the potential role of wireless virtualization in the broader context of next-generation ubiq

  1. Wireless Damage Location Sensing System

    Science.gov (United States)

    Woodard, Stanley E. (Inventor); Taylor, Bryant Douglas (Inventor)

    2012-01-01

    A wireless damage location sensing system uses a geometric-patterned wireless sensor that resonates in the presence of a time-varying magnetic field to generate a harmonic response that will experience a change when the sensor experiences a change in its geometric pattern. The sensing system also includes a magnetic field response recorder for wirelessly transmitting the time-varying magnetic field and for wirelessly detecting the harmonic response. The sensing system compares the actual harmonic response to a plurality of predetermined harmonic responses. Each predetermined harmonic response is associated with a severing of the sensor at a corresponding known location thereof so that a match between the actual harmonic response and one of the predetermined harmonic responses defines the known location of the severing that is associated therewith.

  2. Immersive Learning: Realism, Authenticity & Audience

    OpenAIRE

    Livingstone, Daniel

    2016-01-01

    For almost 20 years the Digital Design Studio has been exploring and applying virtual reality for a wide range of industrial, commercial and educational applications. Drawing from a range of recent projects, we explore the complex relationships between realism, authenticity and audience for effective engagement and education in immersive learning.

  3. An Audience for the Aliens

    Science.gov (United States)

    Bryer, Theo

    2013-01-01

    This account of the making and sharing of self-authored digital videos in a Year 5 classroom focuses on the way that the children appear to be influenced by their awareness of audience. Drawing on evidence of video observation, written and moving image texts produced by the children and semi-structured interviews with them, I examine the factors…

  4. Wireless Internet

    NARCIS (Netherlands)

    el Zarki, M.; Heijenk, Geert; Lee, Kenneth S.; Bidgoli, H.

    This chapter addresses the topic of wireless Internet, the extension of the wireline Internet architecture to the wireless domain. As such the chapter introduces the reader to the dominant characteristics of the Internet, from its structure to the protocols that control the forwarding of data and

  5. WHAT DOES LESBIAN AUDIENCE LIKE?

    Directory of Open Access Journals (Sweden)

    Adriana Ibiti

    2013-04-01

    Full Text Available This paper seeks to identify the mechanisms that define the pleasure (taste and disgust (disgust of the lesbian audience in receiving audiovisual set in lesbian communities. After viewing two stories constructed from the series The  L Word, 25 lesbians WERE interviewed in depth. Next, we conducted a qualitative content anaLysis of the interviews. The results are discussed from the theories of Entertainment (Media Psychology.

  6. The American Jazz Music Audience.

    Science.gov (United States)

    Horowitz, Harold

    This publication reports the findings of research carried out in recognition of the need for an in-depth analysis of the U.S. jazz music audience in order to identify and assess ways to shape the future of jazz as part of the "Survey of Public Participation in The Arts" conducted in 1982. The research problem was to learn the size,…

  7. Telephone and Face-to-Face Interviews with Low-Income Males with Child Care Responsibilities Support Inclusion as a Target Audience in SNAP-Ed.

    Science.gov (United States)

    Krall, Jodi Stotts; Wamboldt, Patricia; Lohse, Barbara

    2015-06-01

    Federally funded nutrition programs mostly target females. Changes in family dynamics suggest low-income men have an important role in food management responsibilities. The purpose of this study was to inform nutrition education program planning to meet needs of lower-income males. Cross-sectional telephone and face-to-face interviews. Stratified random sample of men (n = 101), 18-59 years of age, with child care responsibilities, living in households participating in the Supplemental Nutrition Assistance Program and a convenience sample of adult males (n = 25) recruited from lower income venues. (1) Scripted telephone interviews about health status, eating behaviors, eating competence, food security, technology usage and topics and strategies for nutrition education. (2) In-person cognitive interviews during review of selected online nutrition education lessons. Nutrition education topics of interest, preferred educational strategies, influences on and barriers to intake, eating competence, critiques of online program content, graphics, format. Bivariate correlations, independent t tests, one-way analysis of variance or Chi square, as appropriate. Thematic analyses of cognitive interviews. Of telephone interviewees, 92.1% prepared meals/snacks for children and 54.5% made major household food decisions. Taste was the greatest influence on food selection and the greatest barrier to eating healthful foods. Topics of highest interest were "which foods are best for kids" and "how to eat more healthy foods." Preferred nutrition education strategies included online delivery. Online lessons were highly rated. Interactive components were recognized as particularly appealing; enhanced male centricity of lessons was supported. Findings provided compelling evidence for including needs specific to low-income males when planning, designing, and funding nutrition education programs.

  8. Effects of Exposure to Advertisements on Audience Impressions

    Science.gov (United States)

    Hasegawa, Hiroshi; Sato, Mie; Kasuga, Masao; Nagao, Yoshihide; Shono, Toru; Norose, Yuka; Oku, Ritsuya; Nogami, Akira; Miyazawa, Yoshitaka

    This study investigated effects of listening and/or watching commercial-messages (CMs) on audience impressions. We carried out experiments of TV advertisements presentation in conditions of audio only, video only, and audio-video. As results, we confirmed the following two effects: image-multiple effect, that is, the audience brings to mind various images that are not directly expressed in the content, and marking-up effect, that is, the audience concentrates on some images that are directly expressed in the content. The image-multiple effect, in particular, strongly appeared under the audio only condition. Next, we investigated changes in the following seven subjective responses; usage image, experience, familiarity, exclusiveness, feeling at home, affection, and willingness to buy, after exposure to advertisements under conditions of audio only and audio-video. As a result, noting that the image-multiple effect became stronger as the evaluation scores of the responses increased.

  9. New Perspectives on Audience Activity: ‘Prosumption’ and Media Activism as Audience Practices

    OpenAIRE

    O'Neill, Brian; Gallego, J. Ignacio; Zeller, Frauke

    2013-01-01

    Until relatively recently, the subject of social relationships, constituted in and through audience practices, has been a minor part of audience research studies. This chapter explores how social relationships and forms of audience agency change and / or evolve, through the usage of both traditional and ‘new’ media. In a media environment where traditional and new media worlds collide, the potential of audience practices to rework, not only media-audience relationships, but also wider social ...

  10. Effect of using an audience response system on learning environment, motivation and long-term retention, during case-discussions in a large group of undergraduate veterinary clinical pharmacology students.

    Science.gov (United States)

    Doucet, Michèle; Vrins, André; Harvey, Denis

    2009-12-01

    Teaching methods that provide an opportunity for individual engagement and focussed feedback are required to create an active learning environment for case-based teaching in large groups. A prospective observational controlled study was conducted to evaluate whether the use of an audience response system (ARS) would promote an active learning environment during case-based discussions in large groups, have an impact on student motivation and improve long-term retention. Group A (N = 83) participated in large group case discussions where student participation was voluntary, while for group B (N = 86) an ARS was used. Data collection methods included student and teacher surveys, student focus group interviews, independent observations and 1-year post-course testing. Results indicated that the use of an ARS provided an active learning environment during case-based discussions in large groups by favouring engagement, observation and critical reflection and by increasing student and teacher motivation. Although final exam results were significantly improved in group B, long-term retention was not significantly different between groups. It was concluded that ARS use significantly improved the learning experience associated with case-based discussions in a large group of undergraduate students.

  11. The Coconut Wireless Project: Sharing Culturally Responsive Pedagogy through the World Wide Web.

    Science.gov (United States)

    Nelson-Barber, Sharon; Trumbull, Elise; Wenn, Richard

    Beginning in the 1997-98 school year, WestEd staff, with the support of the Pacific Resources for Education and Learning (PREL), worked intensively with a group of five Chamorro teachers from Rota Elementary School (Hawaii) to develop culturally responsive, standards-based science units. The larger goal was to develop Web-based case examples of…

  12. Digital TV, advertising and audience

    Directory of Open Access Journals (Sweden)

    Ângelo Cruz

    2011-04-01

    Full Text Available This article aims to analyze the advertisingsegment and their relationship with the development process of the digital television. We intent to observe the new perspectives of production and consumption of media. Among other things, that involves the issues of interactivity, the exhaustion of the traditional media models, and the relationship of the new media with the audience, considering the analysis of the tripod: digital television, advertising and audience. In Brazil, with the implementation of the Brazilian System of Digital Television (SBTVD, the problem takes bigger proportions, as a consequence of the possibility to issue and track down the digital content consumed. That happens as a consequence of the consumer ability to watch the program withor without the commercial break. At the current model of television, the public is the legitimizing factor: the broadcasters issues the public a ention asan instrument to obtain pecuniary rewarding of theadvertisers. That model constitutes itself as the main funding source of the channels and networks. On the one hand, digital television represents an advantage at the quality of picture and audio, multiplying the capacity to transmit television signals and to transport new features and services. On the other hand, it seems impossible to transform this industry without some reaction. The many interests involved constitute the main cause of that scenario: the agents interested in advertising are those concerned with the role of ideology, the support of capitalism and the industrial culture. Considering all these questions, it seems almost impossible to produce deep chances,contrary to the interests involved.

  13. Teaching audience analysis to the technical student

    Science.gov (United States)

    Debs, M. B.; Brillhart, L. V.

    1981-01-01

    Teaching audience analysis, as practiced in a technical writing course for engineering students, is discussed. Audience analysis is described as the task of defining the audience for a particular piece of writing and determining those characteristics of the audience which constrain the writer and effect reception of the message. A mature technical writing style that shows the tension produced when a text is written to be read and understood is considered in terms of audience analysis. Techniques include: (1) conveying to students the concept that a reader with certain expectations exist, (2) team teaching to preserve the context of a given technical discipline, and (3) assigning a technical report that addresses a variety of readers, thus establishing the complexity of audience oriented writing.

  14. Normative Aesthetics: the Ideal Audience and Art Education

    OpenAIRE

    Ks, Sunaryono Basuki

    1997-01-01

    Reader-Response Criticism proposes a new way of looking at literary text. One of the writers of this criticism discusses about 'literary competence' which entails the idea of 'ideal reader'. The writer proposes the idea of 'ideal audience' to work with fields of art other than literature. In an attempt to give the proper appreciation of art, norms are required, and norms in art can be arrived at using the concept of 'ideal audience'. It is a fact that norms are normally contextual, not univer...

  15. The Imagined Audience on Social Network Sites

    Directory of Open Access Journals (Sweden)

    Eden Litt

    2016-02-01

    Full Text Available When people construct and share posts on social network sites like Facebook and Twitter, whom do they imagine as their audience? How do users describe this imagined audience? Do they have a sub-audience in mind (e.g., “friends who like reality television”? Do they share more broadly and abstractly (e.g., “the public”? Do such imaginings fluctuate each time a person posts? Using a mixed-methods approach involving a 2-month-long diary study of 119 diverse American adults and their 1,200 social network site posts, supplemented with follow-up interviews (N = 30, this study explores the imagined audience on social network sites. The findings reveal that even though users often interacted with large diverse audiences as they posted, they coped by envisioning either very broad abstract imagined audiences or more targeted specific imagined audiences composed of personal ties, professional ties, communal ties, and/or phantasmal ties. When people had target imagined audiences in mind, they were most often homogeneous and composed of people’s friends and family. Users’ imaginings typically fluctuated among these audience types as they posted even though the potential audience as per their posts’ privacy settings often did not change. The findings provide a list of audience types, as well as detailed descriptions, examples, and frequencies on which future research can build. With people’s online presence playing an important role for their reputations, these findings provide more insight into for whom people are managing their privacy and whom they have in mind as they share.

  16. Rearticulating Audience Engagement: Social Media and Television

    NARCIS (Netherlands)

    Moe, H.; Poell, T.; van Dijck, J.

    2016-01-01

    This introduction to the special issue on social media and television audience engagement sketches the key dimensions that affect how audiences are transformed through the development of social platforms. Building on the five contributions to the special issue, we identify three dimensions that

  17. Rational Wizards: Audience Interpreters in French Television

    NARCIS (Netherlands)

    Bourdon, Jérôme; Méadel, Cécile

    2013-01-01

    abstractThis paper will tell the story of the smallgroup of people who, in France, have been in charge of the measurement and theappreciation of the audience of television, and had to invent audience research,to organize it and to communicate its results to "clients" whodepended on it much earlier

  18. Introductory survey for wireless infrared communications

    Directory of Open Access Journals (Sweden)

    Munsif Ali Jatoi

    2014-08-01

    Full Text Available Wireless infrared communications can be defined as the propagation of light waves in free space using infrared radiation whose range is 400–700 nm. This range corresponds to frequencies of hundreds of terahertz, which is high for higher data rate applications. Wireless infrared is applied for higher data rates applications such as wireless computing, wireless video and wireless multimedia communication applications. Introduced by Gfeller, this field has grown with different link configurations, improved transmitter efficiency, increased receiver responsivity and various multiple access techniques for improved quality. Errors are caused because of background light, which causes degradation overall system performance. Error correction techniques are used to remove the errors caused during transmission. This study provides a brief account on field theory used for error correction in wireless infrared systems. The results are produced in terms of bit error rate and signal-to-noise ratio for various bit lengths to show the ability of encoding and decoding algorithms.

  19. Effects of Interactivity between Audience and Urban Advertisement

    Directory of Open Access Journals (Sweden)

    Mitra Manavirad

    2017-10-01

    Full Text Available Nowadays, advertisement plays an important and impressive role in our lives and we are witnessing different works in this field. The emergence of new technologies in this field has led to the arrival of a new style of advertising with different interactivity and administrative functions. Interactive advertising is considered as one of the most up to date urban advertising. With regard to the arrival of this new style of advertising and using them in different countries, this research investigates the effectiveness of an advertisement’s interaction with the audiences in urban advertising through a descriptive/analytical approach as well as field study with regard to the type of advertising usage including commercial, promotional, educational, social etc. It is assumed that an interactive advertising confronts the audience with many challenges and makes him from a static and watching audience to an actor and explorer audience. In such advertisements, the audience enters a path with interactivity where the advertisement guides him and audience responses positively to this action; after a simple activity and in some cases, he interacts and communicates with the advertisement just by passing by it. In interactivity advertisements in urban spaces, the artist pays much attention to audience participation for challenges or performing specific activity that will lead to a result. The use of interactive advertising in various forms such as billboards, stands, and advertisements at bus stops and so on has increased in recent years, developed countries, and countries that are more familiar to technologies. These works are considered a new step in the field of urban advertising. This research selects samples of using such creative advertisements, especially in commercial areas in different countries as well as Iran. It considers the producing method, ideation, and effectiveness of each in a specific period as well as their installation and commissioning

  20. Open Interactivity: A Model for Audience Agency

    Directory of Open Access Journals (Sweden)

    Charlotte Gould

    2018-04-01

    Full Text Available Artists have increasingly acknowledged the role of the audience as collaborators both in the construction of meaning (Bathes, 1977, through subjective experience (Dewey, 1934 and in contributing to the creative act by externalising the work. (Duchamp Lucy Lippard identifies 1966-72 as a period where artists turned increasingly towards the audience, representing a "dematerialization of the art object" (Lippard, 1997 through "Happenings" and "Fluxus" movements. Digital media has facilitated this trajectory, implicit in the interactive computer interface (Manovich, 2005, but interactivity per se may offer no more than a series of choices put forward by the artist (Daniels, 2011. Interactivity represents interplay between artist and audience (Dinka, 1996 and is potentially a process of audience empowerment to offer agency, defined as real and creative choice (Browning, 1964. Public screen installation "Peoples Screen" Guangzhou, linking China to Perth Australia (Sermon & Gould, 2015 offered a partnership between artist and audience to co-create content though playful narratives and active engagement in a drama that unfolds using improvisation and play. Initially visitors enjoy observing the self on the screen but audiences quickly start to interact with the environment and other participants. Immersed in play they lose a sense of the self (Callois, 2011 and enter a virtual third space where possibilities for creativity and direction of play are limitless. The self becomes an avatar where the audience can inhabit "the other" thereby exploring alternative realities through ludic play, promoting tolerance and empathy and developing collective memory.

  1. Identifying like-minded audiences for global warming public engagement campaigns: an audience segmentation analysis and tool development.

    Science.gov (United States)

    Maibach, Edward W; Leiserowitz, Anthony; Roser-Renouf, Connie; Mertz, C K

    2011-03-10

    Achieving national reductions in greenhouse gas emissions will require public support for climate and energy policies and changes in population behaviors. Audience segmentation--a process of identifying coherent groups within a population--can be used to improve the effectiveness of public engagement campaigns. In Fall 2008, we conducted a nationally representative survey of American adults (n = 2,164) to identify audience segments for global warming public engagement campaigns. By subjecting multiple measures of global warming beliefs, behaviors, policy preferences, and issue engagement to latent class analysis, we identified six distinct segments ranging in size from 7 to 33% of the population. These six segments formed a continuum, from a segment of people who were highly worried, involved and supportive of policy responses (18%), to a segment of people who were completely unconcerned and strongly opposed to policy responses (7%). Three of the segments (totaling 70%) were to varying degrees concerned about global warming and supportive of policy responses, two (totaling 18%) were unsupportive, and one was largely disengaged (12%), having paid little attention to the issue. Certain behaviors and policy preferences varied greatly across these audiences, while others did not. Using discriminant analysis, we subsequently developed 36-item and 15-item instruments that can be used to categorize respondents with 91% and 84% accuracy, respectively. In late 2008, Americans supported a broad range of policies and personal actions to reduce global warming, although there was wide variation among the six identified audiences. To enhance the impact of campaigns, government agencies, non-profit organizations, and businesses seeking to engage the public can selectively target one or more of these audiences rather than address an undifferentiated general population. Our screening instruments are available to assist in that process.

  2. Identifying like-minded audiences for global warming public engagement campaigns: an audience segmentation analysis and tool development.

    Directory of Open Access Journals (Sweden)

    Edward W Maibach

    2011-03-01

    Full Text Available Achieving national reductions in greenhouse gas emissions will require public support for climate and energy policies and changes in population behaviors. Audience segmentation--a process of identifying coherent groups within a population--can be used to improve the effectiveness of public engagement campaigns.In Fall 2008, we conducted a nationally representative survey of American adults (n = 2,164 to identify audience segments for global warming public engagement campaigns. By subjecting multiple measures of global warming beliefs, behaviors, policy preferences, and issue engagement to latent class analysis, we identified six distinct segments ranging in size from 7 to 33% of the population. These six segments formed a continuum, from a segment of people who were highly worried, involved and supportive of policy responses (18%, to a segment of people who were completely unconcerned and strongly opposed to policy responses (7%. Three of the segments (totaling 70% were to varying degrees concerned about global warming and supportive of policy responses, two (totaling 18% were unsupportive, and one was largely disengaged (12%, having paid little attention to the issue. Certain behaviors and policy preferences varied greatly across these audiences, while others did not. Using discriminant analysis, we subsequently developed 36-item and 15-item instruments that can be used to categorize respondents with 91% and 84% accuracy, respectively.In late 2008, Americans supported a broad range of policies and personal actions to reduce global warming, although there was wide variation among the six identified audiences. To enhance the impact of campaigns, government agencies, non-profit organizations, and businesses seeking to engage the public can selectively target one or more of these audiences rather than address an undifferentiated general population. Our screening instruments are available to assist in that process.

  3. Identifying Like-Minded Audiences for Global Warming Public Engagement Campaigns: An Audience Segmentation Analysis and Tool Development

    Science.gov (United States)

    Maibach, Edward W.; Leiserowitz, Anthony; Roser-Renouf, Connie; Mertz, C. K.

    2011-01-01

    Background Achieving national reductions in greenhouse gas emissions will require public support for climate and energy policies and changes in population behaviors. Audience segmentation – a process of identifying coherent groups within a population – can be used to improve the effectiveness of public engagement campaigns. Methodology/Principal Findings In Fall 2008, we conducted a nationally representative survey of American adults (n = 2,164) to identify audience segments for global warming public engagement campaigns. By subjecting multiple measures of global warming beliefs, behaviors, policy preferences, and issue engagement to latent class analysis, we identified six distinct segments ranging in size from 7 to 33% of the population. These six segments formed a continuum, from a segment of people who were highly worried, involved and supportive of policy responses (18%), to a segment of people who were completely unconcerned and strongly opposed to policy responses (7%). Three of the segments (totaling 70%) were to varying degrees concerned about global warming and supportive of policy responses, two (totaling 18%) were unsupportive, and one was largely disengaged (12%), having paid little attention to the issue. Certain behaviors and policy preferences varied greatly across these audiences, while others did not. Using discriminant analysis, we subsequently developed 36-item and 15-item instruments that can be used to categorize respondents with 91% and 84% accuracy, respectively. Conclusions/Significance In late 2008, Americans supported a broad range of policies and personal actions to reduce global warming, although there was wide variation among the six identified audiences. To enhance the impact of campaigns, government agencies, non-profit organizations, and businesses seeking to engage the public can selectively target one or more of these audiences rather than address an undifferentiated general population. Our screening instruments are

  4. Engagement with physics across diverse festival audiences

    Science.gov (United States)

    Roche, Joseph; Stanley, Jessica; Davis, Nicola

    2016-07-01

    Science shows provide a method of introducing large public audiences to physics concepts in a nonformal learning environment. While these shows have the potential to provide novel means of educational engagement, it is often difficult to measure that engagement. We present a method of producing an interactive physics show that seeks to provide effective and measurable audience engagement. We share our results from piloting this method at a leading music and arts festival as well as a science festival. This method also facilitated the collection of opinions and feedback directly from the audience which helps explore the benefits and limitations of this type of nonformal engagement in physics education.

  5. Effective Climate Communication with Difficult Audiences

    Science.gov (United States)

    Denning, S.

    2015-12-01

    Climate communication is often fraught with ideological baggage ("noise") that makes it very difficult to connect to audiences. In these cases, it is helpful to use "best practices" known from other fields of communication. Engaging audiences with authenticity, using plain language, respecting cultural and political differences, and a sprinkling of humor can go a long way toward establishing a connection. It's important to avoid common but polarizing tropes from popular media, and often quite helpful to frame climate issues in novel or unexpected ways that cut across entrenched political discourse. Emerging social science research Beyond ideology, climate change is Simple, Serious, and Solvable. Effective communication of these three key ideas can succeed when the science argument is carefully framed to avoid attack of the audience's ethical identity. Simple arguments from common sense and everyday experience are more successful than data. Serious consequences to values that resonate with the audience can be avoided by solutions that don't threaten those values.

  6. Corporate communications: audiences, funding and crisis management

    OpenAIRE

    Dolphin, R; Fan, Y

    2000-01-01

    Who are the key audiences of corporate communications? Is the communication department adequately funded? And how are crisis handled? This paper reports an empirical research conducted in 20 British organisations, with a focus on these three questions. It is found that internal publics, financial PR and opinion formers are viewed as the three most important audiences. Although most organisations now are more conscious of their corporate identity than ever before, the function is generally fun...

  7. Journal "Kas Jauns": audience uses and gratifications

    OpenAIRE

    Mehtijeva, Jekaterina

    2012-01-01

    The goal of barchelors work „Journal "Kas Jauns": audience uses and gratifications” is to analize and define what are the main readers needs and to what extenct these needs are being satisfied. As well as to define readers habits In the theoretical part the definition of audience is provided as well, as breakdown of the main readers expectations in respect of the theory of media uses and gratification. In order to appropriately analyze the theory behind these Academic thesis the magazine "...

  8. Wireless Biological Electronic Sensors.

    Science.gov (United States)

    Cui, Yue

    2017-10-09

    The development of wireless biological electronic sensors could open up significant advances for both fundamental studies and practical applications in a variety of areas, including medical diagnosis, environmental monitoring, and defense applications. One of the major challenges in the development of wireless bioelectronic sensors is the successful integration of biosensing units and wireless signal transducers. In recent years, there are a few types of wireless communication systems that have been integrated with biosensing systems to construct wireless bioelectronic sensors. To successfully construct wireless biological electronic sensors, there are several interesting questions: What types of biosensing transducers can be used in wireless bioelectronic sensors? What types of wireless systems can be integrated with biosensing transducers to construct wireless bioelectronic sensors? How are the electrical sensing signals generated and transmitted? This review will highlight the early attempts to address these questions in the development of wireless biological electronic sensors.

  9. Preparing Planetary Scientists to Engage Audiences

    Science.gov (United States)

    Shupla, C. B.; Shaner, A. J.; Hackler, A. S.

    2017-12-01

    While some planetary scientists have extensive experience sharing their science with audiences, many can benefit from guidance on giving presentations or conducting activities for students. The Lunar and Planetary Institute (LPI) provides resources and trainings to support planetary scientists in their communication efforts. Trainings have included sessions for students and early career scientists at conferences (providing opportunities for them to practice their delivery and receive feedback for their poster and oral presentations), as well as separate communication workshops on how to engage various audiences. LPI has similarly begun coaching planetary scientists to help them prepare their public presentations. LPI is also helping to connect different audiences and their requests for speakers to planetary scientists. Scientists have been key contributors in developing and conducting activities in LPI education and public events. LPI is currently working with scientists to identify and redesign short planetary science activities for scientists to use with different audiences. The activities will be tied to fundamental planetary science concepts, with basic materials and simple modifications to engage different ages and audience size and background. Input from the planetary science community on these efforts is welcome. Current results and resources, as well as future opportunities will be shared.

  10. TV Audience Measurement with Big Data.

    Science.gov (United States)

    Hill, Shawndra

    2014-06-01

    TV audience measurement involves estimating the number of viewers tuned into a TV show at any given time as well as their demographics. First introduced shortly after commercial television broadcasting began in the late 1940s, audience measurement allowed the business of television to flourish by offering networks a way to quantify the monetary value of TV audiences for advertisers, who pay for the estimated number of eyeballs watching during commercials. The first measurement techniques suffered from multiple limitations because reliable, large-scale data were costly to acquire. Yet despite these limitations, measurement standards remained largely unchanged for decades until devices such as cable boxes, video-on-demand boxes, and cell phones, as well as web apps, Internet browser clicks, web queries, and social media activity, resulted in an explosion of digitally available data. TV viewers now leave digital traces that can be used to track almost every aspect of their daily lives, allowing the potential for large-scale aggregation across data sources for individual users and groups and enabling the tracking of more people on more dimensions for more shows. Data are now more comprehensive, available in real time, and cheaper to acquire, enabling accurate and fine-grained TV audience measurement. In this article, I discuss the evolution of audience measurement and what the recent data explosion means for the TV industry and academic research.

  11. Audience studies 2.0: on the theory, politics and method of qualitative audience research

    NARCIS (Netherlands)

    Hermes, J.

    2009-01-01

    Audience research, this paper suggests, is an excellent field to test the claims of Media Studies 2.0. Moreover, 2.0 claims are a good means to review qualitative audience research itself too. Working from a broad strokes analysis of the theory, politics and method of interpretative research with

  12. Keeping Your Audience in Mind: Applying Audience Analysis to the Design of Interactive Score Reports

    Science.gov (United States)

    Zapata-Rivera, Juan Diego; Katz, Irvin R.

    2014-01-01

    Score reports have one or more intended audiences: the people who use the reports to make decisions about test takers, including teachers, administrators, parents and test takers. Attention to audience when designing a score report supports assessment validity by increasing the likelihood that score users will interpret and use assessment results…

  13. Know Thy Audience: Helping Students Engage a Threshold Concept Using Audience-Based Pedagogy

    Science.gov (United States)

    Pope-Ruark, Rebecca

    2011-01-01

    Students are experts at sizing up instructors, but many do not extend this analysis to non-instructor audiences, which can reduce their effectiveness in new communication situations. Audience, therefore, is a crucial threshold concept not only in Rhetoric and Composition, but in any discipline that values communication skills. How can instructors…

  14. How Acceptable Is A Wireless Pill Bottle That Monitors and Texts In Response To Missed Doses: Focus Groups With Young African American MSM Living With HIV

    Science.gov (United States)

    Dworkin, Mark; Panchal, Palak; Jimenez, Antonio; Garofalo, Robert; Haberer, Jessica E; Wiebel, Wayne

    2017-01-01

    designated their mother, aunt, brother, friend, pastor, and case-manager. Conclusion An adherence intervention using a wireless pill bottle monitoring device linked to text notifications was acceptable to most of the young AAMSM in this study. Acceptability may be enhanced by personalization of the responsive text messages and a backup email option. Disclosures J. E. Haberer, Merck: Consultant, Consulting fee; Natera: Shareholder, Stock ownership

  15. Audience development and its blind spot

    DEFF Research Database (Denmark)

    Lindelof, Anja Mølle

    2015-01-01

    The term ‘audience development’ addresses current dilemmas in publicly funded arts institutions. It is increasingly deployed in cultural policies and insti- tutional practices in the Nordic countries, and the article provides a critical dis- cussion of the term. The article argues...... as a complex social and aesthetic phenome- non that it is necessary to acknowledge in order to properly engage with the challenges and potentials of the performing arts and their institutions. Three key logics from performance research are introduced to complement the audience development discourse with more...... that the discourse developing around audience development takes an organizational and institutionalized approach to performance culture that risks reducing dilemmas in performing arts institutions to a question of either marketing or social distinction. It overlooks a substantial body of knowledge of performance...

  16. Audience Design and Social Relations in Aging.

    Science.gov (United States)

    Keller-Cohen, Deborah

    2015-10-01

    This study asks two questions: (1) Do older adults modify their language based on age of the listener (audience design)? (2) Does social contact affect audience design in older adults? Older adults (n = 34; mean age = 82) engaged in an instructions task with two fictive listeners (a child and an adult) to test these questions. Results show that older adults used a greater total number of propositions and rapport-building devices and a lower type-token ratio when giving instructions to the child compared to the adult listener. Adults with more social interactions used more propositions when talking to a child. In addition, satisfaction with interactions was significantly positively related to task-tracking devices and negatively related to rapport-building devices by older adults. These results suggest that audience design and social relations are worth further study in language maintenance in older age. © The Author(s) 2014.

  17. Engaging Latino audiences in informal science education

    Science.gov (United States)

    Bonfield, Susan B.

    Environment for the Americas (EFTA), a non-profit organization, developed a four-year research project to establish a baseline for Latino participation and to identify practical tools that would enable educators to overcome barriers to Latino participation in informal science education (ISE). Its national scope and broad suite of governmental and non-governmental, Latino and non-Latino partners ensured that surveys and interviews conducted in Latino communities reflected the cosmopolitan nature of the factors that influence participation in ISE programs. Information about economic and education levels, country of origin, language, length of residence in the US, and perceptions of natural areas combined with existing demographic information at six study sites and one control site provided a broader understanding of Latino communities. The project team's ability to work effectively in these communities was strengthened by the involvement of native, Spanish-speaking Latino interns in the National Park Service's Park Flight Migratory Bird Program. The project also went beyond data gathering by identifying key measures to improve participation in ISE and implementing these measures at established informal science education programs, such as International Migratory Bird Day, to determine effectiveness. The goals of Engaging Latino Audiences in Informal Science Education (ISE) were to 1) identify and reduce the barriers to Latino participation in informal science education; 2) provide effective tools to assist educators in connecting Latino families with science education, and 3) broadly disseminate these tools to agencies and organizations challenged to engage this audience in informal science education (ISE). The results answer questions and provide solutions to a challenge experienced by parks, refuges, nature centers, and other informal science education sites across the US. Key findings from this research documented low participation rates in ISE by Latinos, and that

  18. Using Niche-Market Magazines to Teach Audience

    Science.gov (United States)

    Tichenor, Stuart

    2006-01-01

    In technical writing classes, audience is one of the most important concepts. Technical writing is typically written to a specific audience for a specific purpose. In addition, as audiences change, so must the way a document is written. An audience's lack of knowledge in a technical area, for example, would require more background information or…

  19. A Wireless Sensor Enabled by Wireless Power

    Science.gov (United States)

    Lee, Da-Sheng; Liu, Yu-Hong; Lin, Chii-Ruey

    2012-01-01

    Through harvesting energy by wireless charging and delivering data by wireless communication, this study proposes the concept of a wireless sensor enabled by wireless power (WPWS) and reports the fabrication of a prototype for functional tests. One WPWS node consists of wireless power module and sensor module with different chip-type sensors. Its main feature is the dual antenna structure. Following RFID system architecture, a power harvesting antenna was designed to gather power from a standard reader working in the 915 MHz band. Referring to the Modbus protocol, the other wireless communication antenna was integrated on a node to send sensor data in parallel. The dual antenna structure integrates both the advantages of an RFID system and a wireless sensor. Using a standard UHF RFID reader, WPWS can be enabled in a distributed area with a diameter up to 4 m. Working status is similar to that of a passive tag, except that a tag can only be queried statically, while the WPWS can send dynamic data from the sensors. The function is the same as a wireless sensor node. Different WPWSs equipped with temperature and humidity, optical and airflow velocity sensors are tested in this study. All sensors can send back detection data within 8 s. The accuracy is within 8% deviation compared with laboratory equipment. A wireless sensor network enabled by wireless power should be a totally wireless sensor network using WPWS. However, distributed WPWSs only can form a star topology, the simplest topology for constructing a sensor network. Because of shielding effects, it is difficult to apply other complex topologies. Despite this limitation, WPWS still can be used to extend sensor network applications in hazardous environments. Further research is needed to improve WPWS to realize a totally wireless sensor network. PMID:23443370

  20. A Wireless Sensor Enabled by Wireless Power

    Directory of Open Access Journals (Sweden)

    Da-Sheng Lee

    2012-11-01

    Full Text Available Through harvesting energy by wireless charging and delivering data by wireless communication, this study proposes the concept of a wireless sensor enabled by wireless power (WPWS and reports the fabrication of a prototype for functional tests. One WPWS node consists of wireless power module and sensor module with different chip-type sensors. Its main feature is the dual antenna structure. Following RFID system architecture, a power harvesting antenna was designed to gather power from a standard reader working in the 915 MHz band. Referring to the Modbus protocol, the other wireless communication antenna was integrated on a node to send sensor data in parallel. The dual antenna structure integrates both the advantages of an RFID system and a wireless sensor. Using a standard UHF RFID reader, WPWS can be enabled in a distributed area with a diameter up to 4 m. Working status is similar to that of a passive tag, except that a tag can only be queried statically, while the WPWS can send dynamic data from the sensors. The function is the same as a wireless sensor node. Different WPWSs equipped with temperature and humidity, optical and airflow velocity sensors are tested in this study. All sensors can send back detection data within 8 s. The accuracy is within 8% deviation compared with laboratory equipment. A wireless sensor network enabled by wireless power should be a totally wireless sensor network using WPWS. However, distributed WPWSs only can form a star topology, the simplest topology for constructing a sensor network. Because of shielding effects, it is difficult to apply other complex topologies. Despite this limitation, WPWS still can be used to extend sensor network applications in hazardous environments. Further research is needed to improve WPWS to realize a totally wireless sensor network.

  1. A wireless sensor enabled by wireless power.

    Science.gov (United States)

    Lee, Da-Sheng; Liu, Yu-Hong; Lin, Chii-Ruey

    2012-11-22

    Through harvesting energy by wireless charging and delivering data by wireless communication, this study proposes the concept of a wireless sensor enabled by wireless power (WPWS) and reports the fabrication of a prototype for functional tests. One WPWS node consists of wireless power module and sensor module with different chip-type sensors. Its main feature is the dual antenna structure. Following RFID system architecture, a power harvesting antenna was designed to gather power from a standard reader working in the 915 MHz band. Referring to the Modbus protocol, the other wireless communication antenna was integrated on a node to send sensor data in parallel. The dual antenna structure integrates both the advantages of an RFID system and a wireless sensor. Using a standard UHF RFID reader, WPWS can be enabled in a distributed area with a diameter up to 4 m. Working status is similar to that of a passive tag, except that a tag can only be queried statically, while the WPWS can send dynamic data from the sensors. The function is the same as a wireless sensor node. Different WPWSs equipped with temperature and humidity, optical and airflow velocity sensors are tested in this study. All sensors can send back detection data within 8 s. The accuracy is within 8% deviation compared with laboratory equipment. A wireless sensor network enabled by wireless power should be a totally wireless sensor network using WPWS. However, distributed WPWSs only can form a star topology, the simplest topology for constructing a sensor network. Because of shielding effects, it is difficult to apply other complex topologies. Despite this limitation, WPWS still can be used to extend sensor network applications in hazardous environments. Further research is needed to improve WPWS to realize a totally wireless sensor network.

  2. Audience Perception of Effective Communication in Nigerian Paintings

    Directory of Open Access Journals (Sweden)

    Johnson Adelani Abodunrin

    2017-01-01

    Full Text Available Artists in Nigeria perceived effective communication differently irrespective of the socio-economic status.Communication effectiveness depends largely on the understanding of the message being passed between a sender and a receiver. Painting has been used over time to express emotion and feeling to the perceiving audience. The study is audience’s perception of communication in Nigeria painting and how it varies with the socio-economic characteristics such as age, education, gender, and being professional artist or art lovers. Questionnaires were distributed and administered to examine how the status of the art audience makes or mars effective communication in painting. The inferential statistics that were employed include “chi-square test” to test the relationship between different variables. The data were taken in ordinal form using Likert’s scale, and transformed into interval data. This was done by attaching statistical weights to the responses in the order of importance which were summed up for the parametric testing. Findings show that gender factor has nothing to do with the understanding of paintings. Also, the level of education obtained by the audience does not have much to do with understanding of contemporary Nigerian painting but a better exposure to the issue concerning the stylistic development of Nigerian painting. Art practitioners must adequately be guided on stylistic trend in painting, art education should be more intensified in educational curriculum in Nigeria. The paper concludes that audience requires a better exposure to the issues concerning the stylistic development of Nigerian painting for effective communication to take place.

  3. Adaptive Wireless Transceiver Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Many wireless technologies are already available for sensor applications. It is inevitable that many non-interoperable wireless technologies between 400 MHz and 5.8...

  4. Systems Analysis and Design: Know Your Audience

    Science.gov (United States)

    Reinicke, Bryan A.

    2012-01-01

    Systems analysis and design (SAD) classes are required in both Information Systems and Accounting programs, but these audiences have very different needs for these skills. This article will review the requirements for SAD within each of these disciplines and compare and contrast the different requirements for teaching systems analysis and design…

  5. Determining Audience Profile and Effectiveness of Publicity.

    Science.gov (United States)

    Klinzing, Dennis

    This report of two audience analyses at the University of Delaware Theatre was prepared as a guide for other university theatres that may need an understanding of the people who attend their dramatic presentations. Such analyses can provide information about who is attending the theatre, how performances are evaluated, what influences audience…

  6. Mirror Your Audience's Attitude: A Global Profile.

    Science.gov (United States)

    Meussling, Vonne

    Recent advertising research has suggested that to gain initial entry into and retain continual success with a targeted audience of consumers, it is wise to mirror the attitudes and desires of those consumers. This has proven effective in the United States, where companies such as Chevrolet, Levi Strauss, and Coca-Cola have successfully catered to…

  7. Conditioning audience patronage using subject matters in ...

    African Journals Online (AJOL)

    Conditioning audience patronage using subject matters in Nollywood films: the example of 30 days in Atlanta. ... Abstract. Films are subject-based and when producers set out to communicate their viewpoints, some do it flamboyantly while others take the subtle path. Unlike live theatre before it, the possibility of a virile spiral ...

  8. Dialogues between audience research and production

    DEFF Research Database (Denmark)

    Redvall, Eva Novrup

    2017-01-01

    This article offers a historical analysis of the audience testing of television drama from The Danish Broadcasting Corporation (DR) by the in-house DR Media Research Department from the mid-1990s until 2016. The article investigates how the methods for testing have changed from more traditional...

  9. Deconstruction in Performance for Audience Aesthetic Preference ...

    African Journals Online (AJOL)

    The investigation combines the quantitative and qualitative methods for data capture and analysis, and thus deduced that the audience aesthetic preference was in favour of the day two performance. Hinging on the theory of deconstruction, the paper recommends that all such African plays bestowed with the shortcomings ...

  10. Complicating Audience: A Critical Communication Pedagogy Commitment

    Science.gov (United States)

    Young, Joshua E.; Potter, David J.

    2018-01-01

    Courses: This activity is designed specifically for public-speaking courses, but it could be used in the general introductory communication course. It also holds potential for use in persuasion, argumentation, or strategic communication courses. Objectives: This activity helps students understand audience as a more complicated concept--one that…

  11. Creating Visual Design and Meaningful Audience Experiences

    DEFF Research Database (Denmark)

    Steijn, Arthur; Ion Wille, Jakob

    2014-01-01

    consider digital media and new technologies as appropriate ways to reach new audiences. However in the field of classical composition music, new technologies have more than often been applied mainly to online ticket sales, web based marketing, and social medias. The focus of our work at the School...

  12. Engagement with Physics across Diverse Festival Audiences

    Science.gov (United States)

    Roche, Joseph; Stanley, Jessica; Davis, Nicola

    2016-01-01

    Science shows provide a method of introducing large public audiences to physics concepts in a nonformal learning environment. While these shows have the potential to provide novel means of educational engagement, it is often difficult to measure that engagement. We present a method of producing an interactive physics show that seeks to provide…

  13. Astronomy and Art Merged: Targeting Other Audiences

    Science.gov (United States)

    Friedman, A. F.

    1999-05-01

    One of the fundamental concerns of museum exhibition is to reach as broad an audience as possible. One way to open up the history of astronomy to a wider audience is to create an exhibit with an interdisciplinary theme and to select a venue outside of a science institution. Here I discuss ``Awestruck by the Majesty of the Heavens: Artistic Perspectives from the Adler Planetarium & Astronomy Museum History of Astronomy Collection," which took place at the Chicago Cultural Center from January to March of 1997. ``Awestruck" featured a selection of celestial charts, portrait prints of famous astronomers, plates from books on astronomical topics, and other works on paper. It focused on the connections between art and science during the period 1500-1800. Scientific content and place within the history of astronomy were discussed in addition to the artistic merit of the objects. The Chicago Cultural Center is an institution that is home to a wide variety of cultural programming including art, music, film, theater, and dance. In addition to providing a different audience for this material than that which typically visits the Adler, ``Awestruck" also represented an expansion of material for the Cultural Center's audience to view, as their exhibition spaces primarily show only 20th-century art. Programming such as gallery talks and the production of an art-museum-type exhibition catalog will also be discussed.

  14. Methods of Speakers\\' Effects on the Audience

    Directory of Open Access Journals (Sweden)

    فریبا حسینی

    2010-09-01

    Full Text Available Methods of Speakers' Effects on the Audience    Nasrollah Shameli *   Fariba Hosayni **     Abstract   This article is focused on four issues. The first issue is related to the speaker's external appearance including the beauty of face, the power of his voice, moves and signals by hand, the stick and eyebrow as well as the height. Such characteristics could have an important effect on the audience. The second issue is related to internal features of the speaker. These include the ethics of the preacher , his/her piety and intention on the speakers based on their personalities, habits and emotions, knowledge and culture, and speed of learning. The third issue is concerned with the appearance of the lecture. Words should be clear enough as well as being mixed with Quranic verses, poetry and proverbs. The final issue is related to the content. It is argued that the subject of the talk should be in accordance with the level of understanding of listeners as well as being new and interesting for them.   3 - A phenomenon rhetoric: It was noted in this section How to give words and phrases so that these words and phrases are clear, correct, mixed in parables, governance and Quranic verses, and appropriate their meaning.   4 - the content of Oratory : It was noted in this section to the topic of Oratory and say that the Oratory should be the theme commensurate with the minds of audiences and also should mean that agree with the case may be, then I say: that the rhetoric if the theme was innovative and new is affecting more and more on the audience.     Key words : Oratory , Preacher , Audience, Influence of speech     * Associate Professor, Department of Arabic Language and Literature, University of Isfahan E-mail: Dr-Nasrolla Shameli@Yahoo.com   * * M.A. in Arabic Language and Literature from Isfahan University E-mail: faribahosayni@yahoo.com

  15. Selling Participation to Audiences in China

    Directory of Open Access Journals (Sweden)

    Kuo Huang

    2009-01-01

    Full Text Available Media globalization is facilitated by the development of new technologies within a framework of digitization and convergence. Contemporary new media provide networks through which the mingling of media occurs, shaping a “multi-mediacy” age, and a connecting of mediated/mediating venues in a condition of “immediacy”. Additionally, the business of communication has evolved from being the “communication of business” to the “business of business”. Multi-mediacy and immediacy have generated new avenues of profit from media. The paper will draw on Chitty’s theorization on web transactional venues to discuss new ways of farming of revenue from media. Media revenues have in the past and today been drawn from licence fees, media subscriptions and advertising. Today, media networks also sell “participation” to audiences directly by charging for text message voting/gaming, or sell a range of products and services through web-venue based commerce. This paper will undertake case studies to examine the increasing trend of “direct audience payment for participation”. The case studies that will be used are (A the intervention of Chinese Service Providers in reality TV shows and (B E-commerce on the Internet. Monternet (mo[bile I]nternet and Linktone are investigated as Service Providers (SPs and the consumer-to-consumer (C2C website www.taobao.com is studied compared with Eachnet (eBay in China. The paper will also investigate the influences of “direct audience payment for participation” on the quality of media products and communication flow between media and audience and generally discuss the consequences of the “direct audience payment for participation” from the perspective of communication ethics.

  16. Wireless Communication Technologies

    Indian Academy of Sciences (India)

    First page Back Continue Last page Overview Graphics. Wireless Communication Technologies. Since 1999, the wireless LAN has experienced a tremendous growth. Reasons: Adoption of industry standards. Interoperability testing. The progress of wireless equipments to higher data rates. Rapid decrease in product ...

  17. CCNA Wireless Study Guide

    CERN Document Server

    Lammle, Todd

    2010-01-01

    A complete guide to the CCNA Wireless exam by leading networking authority Todd Lammle. The CCNA Wireless certification is the most respected entry-level certification in this rapidly growing field. Todd Lammle is the undisputed authority on networking, and this book focuses exclusively on the skills covered in this Cisco certification exam. The CCNA Wireless Study Guide joins the popular Sybex study guide family and helps network administrators advance their careers with a highly desirable certification.: The CCNA Wireless certification is the most respected entry-level wireless certification

  18. Leveraging Big Data Analytics for Cache-Enabled Wireless Networks

    OpenAIRE

    Abdel Kader, Manhal; Bastug, Ejder; Bennis, Mehdi; zeydan, engin; Karatep, Alper; Salih Er, Ahmet; Debbah, Merouane

    2015-01-01

    International audience; While 5G wireless networks are expected to handle the ever growing data avalanche, classical deployment/optimiza-tion approaches such as hyper-dense deployment of base stations or having more bandwidth are cost-inefficient, and are therefore seen as stopgaps. In this regard, context-aware approaches which exploits human predictability, recent advances in storage, edge/cloud computing and big data analytics are needed. In this article, we approach this problem from a pr...

  19. Design of a Wireless Gesture Activated PowerPoint Controller

    OpenAIRE

    Wasswa, Charles

    2011-01-01

    The desire to give effective presentations lead to the development of different types of visual aids including flip charts, overhead transparencies, posters and digital slide shows. The digital slide shows had improved the effectiveness of the presentation and the audience size, but the need to be next to the keyboard or mouse, created a vacuum for new innovations. There was a need for some form of wireless control of the slides movement. Presenters have always wanted the freedom of movemen...

  20. Rational Wizards: Audience Interpreters in French Television

    Directory of Open Access Journals (Sweden)

    Jérôme Bourdon

    2013-12-01

    Full Text Available This paper will tell the story of the smallgroup of people who, in France, have been in charge of the measurement and theappreciation of the audience of television, and had to invent audience research,to organize it and to communicate its results to "clients" whodepended on it much earlier than usually assumed: television managers andprofessionals, public authorities, and, last but not least, advertisers. The paper will explore both change andcontinuity. First, change: the professional origin and training of measurerschanged much over the years. In the early days, they could have an almostliterary profile. The first person in charge of the audience at the RadioTélévision Française was a teacher of philosophy. His followers had a formationin sociology and semiology. They all insisted on the fact that they were not"simply" measurers, and also worried about appreciation, quality,culture. They always figures did produce figures, but rarely only about thenumber of people present in front of the screen, mostly about satisfaction,appreciation, preferences for given genres, viewing habits. As there was onlyone channel – until 1964, with the number of TV sets rising sharply, ratings,in the modern sense, were not critical.Things started to change gradually. In 1974,the public broadcasting corporation was divided into several companies,including three competing channels. The service in charge of measuring audiencewas put under the direct authority of the Prime Minister. Audience figuresplayed a part in the distribution of resources, not only advertising but throughthe license fee sharing. However, the law also provided a clause about an indexof quality, which never functioned satisfactorily, although the service incharge of audiences put much effort into it. In 1985, around the time of deregulation,change came. From outside, this was translated into the rise of daily,detailed, fast produced figures of the audience through audimeters, thenpeoplemeters

  1. The Spatiotemporal Dynamics of Digital News Audiences

    DEFF Research Database (Denmark)

    Peters, Chris

    2016-01-01

    The changing patterns of news consumption in a digital era bring about new configurations between audiences, information, the devices upon which they consume it and the different (mobile) places and (shiftable) times where and when this is possible. This chapter highlights the need to consider...... these interrelated changes in the media ecology if we want to grasp the newfound complexity of media consumption. Specifically, it outlines how audience engagement with news and different spatiotemporal configurations made possible by digital technology are trends that complement and reinforce one another in terms...... of changing the socially-situated affordances of news use. Having sketched these contours, the chapter then highlights analytical challenges for understanding and conceptualizing the new interrelations between digital news content, production, and consumption, grounding this analysis with theoretical insights...

  2. Imagining Rural Audiences in Remote Western Australia

    Directory of Open Access Journals (Sweden)

    Lelia Green

    2010-06-01

    Full Text Available In 1979, Australia’s then-Communication Minister Tony Staley commented that the introduction of satellite communications to the bush would “dispel the dis-tance – mental as well as geographical – between urban and regional dwellers, between the haves and the have-nots in a communication society” (Staley 1979: 2225, 2228-9. In saying this, Staley imagined a marginalised and disadvantaged audience of “have-nots”, paying for their isolation in terms of their mental dis-tance from the networked communications of the core. This paper uses ethnographic audience studies surveys and interviews (1986-9 to examine the validity of Staley’s imaginations in terms of four communication technologies: the telephone, broadcast radio, 2-way radio and the satellite. The notion of a mental difference is highly problematic for the remote audience. Inso-far as a perception of lack and of difference is accepted, it is taken to reflect the perspective and the product of the urban policy-maker. Far from accepting the “distance” promulgated from the core, remote audiences see such statements as indicating an ignorance of the complexity and sophistica-tion of communications in an environment where the stakes are higher and the options fewer. This is not to say that remote people were not keen to acquire satel-lite services – they were – it is to say that when they imagined such services it was in terms of equity and interconnections, rather than the “dispelling of distance”.

  3. Probing the audience of seniors' online communities.

    Science.gov (United States)

    Nimrod, Galit

    2013-09-01

    Participation in online communities that are dedicated to older adults is a significant trend in elders' use of the Internet. The present study aimed to explore the audience of these communities and to discover possible subsegments within that audience and the differences among them. The study was based on an online survey of 218 members of 16 English language-based seniors' online communities. Analysis demonstrated that the audience of the communities is not homogeneous, as 3 segments of community members were identified: information swappers, aging-oriented, and socializers. These groups differed in their interests, background characteristics, and participation patterns. In addition, results indicated significant differences between the groups in perceived benefits. The socializers were those who reported the highest level of gratification. The aging-oriented reported more "companionship" than the information swappers, and the latter reported more "joyfulness" than the aging-oriented. The results suggested that members of seniors' online communities actively select community contents that best meet their psychosocial needs and use the communities interchangeably with other media and activities. Such purposeful use of the communities becomes an integral part of the strategies they utilize in order to cope with later life circumstances.

  4. Pervasive Mobile and Ambient Wireless Communications COST Action 2100

    CERN Document Server

    Zanella, Alberto

    2012-01-01

    Pervasive Mobile and Ambient Wireless Communications reports the findings of COST 2100, a project of the European intergovernmental COST framework addressing various topics currently emerging in mobile and wireless communications. Drawing on experience developed in this and earlier COST projects, the text represents the final outcome of collaborative work involving more than 500 researchers in 140 institutions and 30 countries (including outside Europe). The book’s subject matter includes: • transmission techniques; • signal processing; • radio channel modelling and measurement; • radio network issues; and • recent paradigms including ultra-wideband, cooperative, vehicle-to-vehicle and body communications. The research reported comes from a variety of backgrounds: academic, equipment-manufacturing and operational. The information contained in this book will bring the study reported to a wider audience from all those spheres of work. Pervasive Mobile and Ambient Wireless Communications will be of i...

  5. Structural health monitoring using wireless sensor networks

    Science.gov (United States)

    Sreevallabhan, K.; Nikhil Chand, B.; Ramasamy, Sudha

    2017-11-01

    Monitoring and analysing health of large structures like bridges, dams, buildings and heavy machinery is important for safety, economical, operational, making prior protective measures, and repair and maintenance point of view. In recent years there is growing demand for such larger structures which in turn make people focus more on safety. By using Microelectromechanical Systems (MEMS) Accelerometer we can perform Structural Health Monitoring by studying the dynamic response through measure of ambient vibrations and strong motion of such structures. By using Wireless Sensor Networks (WSN) we can embed these sensors in wireless networks which helps us to transmit data wirelessly thus we can measure the data wirelessly at any remote location. This in turn reduces heavy wiring which is a cost effective as well as time consuming process to lay those wires. In this paper we developed WSN based MEMS-accelerometer for Structural to test the results in the railway bridge near VIT University, Vellore campus.

  6. From 'folkism' to performance: a new scenic strategy for audience ...

    African Journals Online (AJOL)

    The performances of plays based on 'Folkism' are not accessible to the general audience due to the kind of staging techniques used for the performances of these plays. Instead of attaining total audience integration, the audience is alienated and estranged because of a natural gulf that exists in the proscenium theatre.

  7. Sleeping with the enemy: Audience studies and critical literacy

    NARCIS (Netherlands)

    Hermes, J.; van den Berg, A.; Mol, M.

    2013-01-01

    Audience studies is not the vibrant field it was in its 1980s and early 1990s heyday. Cultural studies today has a more balanced interest in production, audiences and texts. A renewed focus in audience studies on everyday meaning production, identity and relations of power could benefit from recent

  8. Proxy SDN Controller for Wireless Networks

    Directory of Open Access Journals (Sweden)

    Won-Suk Kim

    2016-01-01

    Full Text Available Management of wireless networks as well as wired networks by using software-defined networking (SDN has been highlighted continually. However, control features of a wireless network differ from those of a wired network in several aspects. In this study, we identify the various inefficient points when controlling and managing wireless networks by using SDN and propose SDN-based control architecture called Proxcon to resolve these problems. Proxcon introduces the concept of a proxy SDN controller (PSC for the wireless network control, and the PSC entrusted with the role of a main controller performs control operations and provides the latest network state for a network administrator. To address the control inefficiency, Proxcon supports offloaded SDN operations for controlling wireless networks by utilizing the PSC, such as local control by each PSC, hybrid control utilizing the PSC and the main controller, and locally cooperative control utilizing the PSCs. The proposed architecture and the newly supported control operations can enhance scalability and response time when the logically centralized control plane responds to the various wireless network events. Through actual experiments, we verified that the proposed architecture could address the various control issues such as scalability, response time, and control overhead.

  9. Wireless physical layer security

    OpenAIRE

    Poor, H. Vincent; Schaefer, Rafael F.

    2016-01-01

    Security is a very important issue in the design and use of wireless networks. Traditional methods of providing security in such networks are impractical for some emerging types of wireless networks due to the light computational abilities of some wireless devices [such as radio-frequency identification (RFID) tags, certain sensors, etc.] or to the very large scale or loose organizational structure of some networks. Physical layer security has the potential to address these concerns by taking...

  10. Wireless security in mobile health.

    Science.gov (United States)

    Osunmuyiwa, Olufolabi; Ulusoy, Ali Hakan

    2012-12-01

    Mobile health (m-health) is an extremely broad term that embraces mobile communication in the health sector and data packaging. The four broad categories of wireless networks are wireless personal area network, wireless metropolitan area network, wireless wide area network, and wireless local area network. Wireless local area network is the most notable of the wireless networking tools obtainable in the health sector. Transfer of delicate and critical information on radio frequencies should be secure, and the right to use must be meticulous. This article covers the business opportunities in m-health, threats faced by wireless networks in hospitals, and methods of mitigating these threats.

  11. Wireless Emulation Laboratory

    Data.gov (United States)

    Federal Laboratory Consortium — The Wireless Emulation Laboratory (WEL) is a researchtest bed used to investigate fundamental issues in networkscience. It is a research infrastructure that emulates...

  12. Adaptive Wireless Transceiver Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Wireless technologies are an increasingly attractive means for spatial data, input, manipulation, and distribution. Mobitrum is proposing an innovative Adaptive...

  13. Guidelines for wireless technology in nuclear power plants

    International Nuclear Information System (INIS)

    Shankar, Ramesh

    2003-01-01

    As a result of technological breakthroughs, increased demand for the use of wireless technology is common in all industries today, and the electric power industry is no exception. Already, wireless technology has many applications in our industry, including - but not limited to - cellular phone systems, paging systems, two-way radio communication systems, dose management and tracking systems, and operator logs. EPRI has prepared a comprehensive guidelines document to support evaluation of wireless technologies in power plants for integrated (voice/data/video) communication, remote equipment and system monitoring, and to complement an electronic procedures support system (EPSS). The guidelines effort focuses on the development of a rules structure to support the deployment of wireless devices in a plant without compromising continuous, safe, and reliable operation. The guidelines document consists of two volumes. The first volume is introductory in nature and lays out the business case for applying wireless technologies. The intended audience is senior plant management personnel and utility industry executives. This volume contains background information, templates, worksheets, processes, and presentations that will allow internal sponsors to create business cases for piloting wireless projects. The second volume includes guidance on implementation and regulatory issues relevant to plant implementation. It covers the following application areas: implementation of integrated communication capability, equipment monitoring, work quality control, time and knowledge management, and business process automation. It details regulatory issues relevant to the adoption of wireless technology within nuclear power plants and offers guidance on preparing for and executing pilot and implementations of wireless technologies. The paper will cover important aspects on the guidelines. (author)

  14. Engaging Audiences in Planetary Science Through Visualizations

    Science.gov (United States)

    Shupla, C. B.; Mason, T.; Peticolas, L. M.; Hauck, K.

    2017-12-01

    One way to share compelling stories is through visuals. The Lunar and Planetary Institute (LPI), in collaboration with Laboratory for Atmospheric and Space Physics (LASP) and Space Science Laboratory at the University of California, Berkeley, has been working with planetary scientists to reach and engage audiences in their research through the use of visualizations. We will share how images and animations have been used in multiple mediums, including the planetarium, Science on a Sphere, the hyperwall, and within apps. Our objectives are to provide a tool that planetary scientists can use to tell their stories, as well as to increase audience awareness of and interest in planetary science. While scientists are involved in the selection of topics and the development of the visuals, LPI and partners seek to increase the planetary science community's awareness of these resources and their ability to incorporate them into their own public engagement efforts. This presentation will share our own resources and efforts, as well as the input received from scientists on how education and public engagement teams can best assist them in developing and using these resources, and disseminating them to both scientists and to informal science education venues.

  15. Can donated media placements reach intended audiences?

    Science.gov (United States)

    Cooper, Crystale Purvis; Gelb, Cynthia A; Chu, Jennifer; Polonec, Lindsey

    2013-09-01

    Donated media placements for public service announcements (PSAs) can be difficult to secure, and may not always reach intended audiences. Strategies used by the Centers for Disease Control and Prevention's (CDC) Screen for Life: National Colorectal Cancer Action Campaign (SFL) to obtain donated media placements include producing a diverse mix of high-quality PSAs, co-branding with state and tribal health agencies, securing celebrity involvement, monitoring media trends to identify new distribution opportunities, and strategically timing the release of PSAs. To investigate open-ended recall of PSAs promoting colorectal cancer screening, CDC conducted 12 focus groups in three U.S. cities with men and women either nearing age 50 years, when screening is recommended to begin, or aged 50-75 years who were not in compliance with screening guidelines. In most focus groups, multiple participants recalled exposure to PSAs promoting colorectal cancer screening, and most of these individuals reported having seen SFL PSAs on television, in transit stations, or on the sides of public buses. Some participants reported exposure to SFL PSAs without prompting from the moderator, as they explained how they learned about the disease. Several participants reported learning key campaign messages from PSAs, including that colorectal cancer screening should begin at age 50 years and screening can find polyps so they can be removed before becoming cancerous. Donated media placements can reach and educate mass audiences, including millions of U.S. adults who have not been screened appropriately for colorectal cancer.

  16. NASA's Astronomy Education Program: Reaching Diverse Audiences

    Science.gov (United States)

    Hasan, Hashima; Smith, Denise Anne; Hertz, Paul; Meinke, Bonnie

    2015-08-01

    An overview will be given of the rich programs developed by NASA to inject the science from it's Astrophysics missions into STEM activities targeted to diverse audiences. For example, Astro4Girls was started as a pilot program during IYA2009. This program partners NASA astrophysics education programs with public libraries to provide NASA-themed hands-on education activities for girls and their families, and has been executed across the country. School curricula and NASA websites have been translated in Spanish; Braille books have been developed for the visually impaired; programs have been developed for the hearing impaired. Special effort has been made to reach underrepresented minorities. Audiences include students, teachers, and the general public through formal and informal education settings, social media and other outlets. NASA Astrophysics education providers include teams embedded in its space flight missions; professionals selected though peer reviewed programs; as well as the Science Mission Directorate Astrophysics Education forum. Representative examples will be presented to demonstrate the reach of NASA education programs, as well as an evaluation of the effectiveness of these programs.

  17. Physical activity in the mass media: an audience perspective.

    Science.gov (United States)

    Smith, Ben J; Bonfiglioli, Catriona M F

    2015-04-01

    Physical activity's role in promoting health is highlighted in public health campaigns, news and current affairs, reality television and other programs. An investigation of audience exposure, beliefs and reactions to media portrayals of physical activity offers insights into the salience and influence of this communication. An audience reception study was conducted involving in-depth interviews with 46 adults in New South Wales, Australia. The sample was stratified by gender, age group, area of residence and body mass index. Most respondents could only recall media coverage of physical activity with prompting. Television was the primary channel of exposure, with reality television the dominant source, followed by news programs and sports coverage. The messages most readily recalled were the health risks of inactivity, especially obesity, and the necessity of keeping active. Physical activity was regarded as a matter of personal volition, or for children, parental responsibility. Respondents believed that the media had given physical activity inadequate attention, focused too heavily on risks and not provided practical advice. In Australia, there is a need to counter the framing of physical activity by reality television, and engage the media to generate understanding of the socioecological determinants of inactivity. Physical activity campaigns should deliver positive and practical messages. © The Author 2015. Published by Oxford University Press. All rights reserved. For permissions, please email: journals.permissions@oup.com.

  18. Wireless mobile Internet security

    CERN Document Server

    Rhee, Man Young

    2013-01-01

      The mobile industry for wireless cellular services has grown at a rapid pace over the past decade. Similarly, Internet service technology has also made dramatic growth through the World Wide Web with a wire line infrastructure. Realization for complete wired/wireless mobile Internet technologies will become the future objectives for convergence of these technologies thr

  19. Communicating marine reserve science to diverse audiences

    Science.gov (United States)

    Grorud-Colvert, Kirsten; Lester, Sarah E.; Airamé, Satie; Neeley, Elizabeth; Gaines, Steven D.

    2010-01-01

    As human impacts cause ecosystem-wide changes in the oceans, the need to protect and restore marine resources has led to increasing calls for and establishment of marine reserves. Scientific information about marine reserves has multiplied over the last decade, providing useful knowledge about this tool for resource users, managers, policy makers, and the general public. This information must be conveyed to nonscientists in a nontechnical, credible, and neutral format, but most scientists are not trained to communicate in this style or to develop effective strategies for sharing their scientific knowledge. Here, we present a case study from California, in which communicating scientific information during the process to establish marine reserves in the Channel Islands and along the California mainland coast expanded into an international communication effort. We discuss how to develop a strategy for communicating marine reserve science to diverse audiences and highlight the influence that effective science communication can have in discussions about marine management. PMID:20427745

  20. Communicating marine reserve science to diverse audiences.

    Science.gov (United States)

    Grorud-Colvert, Kirsten; Lester, Sarah E; Airamé, Satie; Neeley, Elizabeth; Gaines, Steven D

    2010-10-26

    As human impacts cause ecosystem-wide changes in the oceans, the need to protect and restore marine resources has led to increasing calls for and establishment of marine reserves. Scientific information about marine reserves has multiplied over the last decade, providing useful knowledge about this tool for resource users, managers, policy makers, and the general public. This information must be conveyed to nonscientists in a nontechnical, credible, and neutral format, but most scientists are not trained to communicate in this style or to develop effective strategies for sharing their scientific knowledge. Here, we present a case study from California, in which communicating scientific information during the process to establish marine reserves in the Channel Islands and along the California mainland coast expanded into an international communication effort. We discuss how to develop a strategy for communicating marine reserve science to diverse audiences and highlight the influence that effective science communication can have in discussions about marine management.

  1. Smartphone Household Wireless Electroencephalogram Hat

    Directory of Open Access Journals (Sweden)

    Harold Szu

    2013-01-01

    Full Text Available Rudimentary brain machine interface has existed for the gaming industry. Here, we propose a wireless, real-time, and smartphone-based electroencephalogram (EEG system for homecare applications. The system uses high-density dry electrodes and compressive sensing strategies to overcome conflicting requirements between spatial electrode density, temporal resolution, and spatiotemporal throughput rate. Spatial sparseness is addressed by close proximity between active electrodes and desired source locations and using an adaptive selection of N active among 10N passive electrodes to form m-organized random linear combinations of readouts, m≪N≪10N. Temporal sparseness is addressed via parallel frame differences in hardware. During the design phase, we took tethered laboratory EEG dataset and applied fuzzy logic to compute (a spatiotemporal average of larger magnitude EEG data centers in 0.3 second intervals and (b inside brainwave sources by Independent Component Analysis blind deconvolution without knowing the impulse response function. Our main contributions are the fidelity of quality wireless EEG data compared to original tethered data and the speed of compressive image recovery. We have compared our recovery of ill-posed inverse data against results using Block Sparse Code. Future work includes development of strategies to filter unwanted artifact from high-density EEGs (i.e., facial muscle-related events and wireless environmental electromagnetic interferences.

  2. Claps and Claptrap: The Analysis of Speaker-Audience Interaction in Political Speeches

    Directory of Open Access Journals (Sweden)

    Peter Bull

    2016-07-01

    Full Text Available Significant insights have been gained into how politicians interact with live audiences through the detailed microanalysis of video and audio recordings, especially of rhetorical techniques used by politicians to invite applause. The overall aim of this paper is to propose a new theoretical model of speaker-audience interaction in set-piece political speeches, based on the concept of dialogue between speaker and audience. Research is reviewed not only on applause, but also on other audience responses, such as laughter, cheering, chanting, and booing. Research is also reviewed on other factors besides rhetorical devices, in particular, delivery, speech content, and uninvited applause. Although these analyses are based primarily on British speeches, they also include recent studies of speeches delivered in both Japan and the USA. This cross-cultural perspective, it is proposed, provides significant insights into the role of political rhetoric in speaker-audience interaction, which may be usefully conceptualized in terms of broader cross-cultural differences between collectivist and individualist societies.

  3. Security for multihop wireless networks

    CERN Document Server

    Khan, Shafiullah

    2014-01-01

    Security for Multihop Wireless Networks provides broad coverage of the security issues facing multihop wireless networks. Presenting the work of a different group of expert contributors in each chapter, it explores security in mobile ad hoc networks, wireless sensor networks, wireless mesh networks, and personal area networks.Detailing technologies and processes that can help you secure your wireless networks, the book covers cryptographic coprocessors, encryption, authentication, key management, attacks and countermeasures, secure routing, secure medium access control, intrusion detection, ep

  4. Character, Audience Agency and Trans-Media Drama

    OpenAIRE

    Evans, Elizabeth

    2007-01-01

    Changes in the television industry with regards to the development of new media technologies are having a significant impact on audience engagement with television drama. This article explores how the internet is being used to extend audience engagement onto platforms other than the television set to the point where television drama should increasingly be reconsidered as trans-media drama. However audience engagement with the various elements of a trans-media drama text is complex. By explori...

  5. Privacy-Preserving Television Audience Measurement Using Smart TVs

    OpenAIRE

    Drosatos, George; Tasidou, Aimilia; Efraimidis, Pavlos,

    2012-01-01

    Part 6: Privacy Attitudes and Properties; International audience; Internet-enabled television systems, often referred to as Smart TVs, are a new development in television and home entertainment technologies. In this work, we propose a new, privacy-preserving, approach for Television Audience Measurement (TAM), utilizing the capabilities of the Smart TV technologies. We propose a novel application to calculate aggregate audience measurements using Smart TV computation capabilities and permanen...

  6. Impact of in-band interference on a wake-up radio system in wireless sensor networks

    OpenAIRE

    LEBRETON , J.M.; Murad , Nour; Lorion , Richard

    2017-01-01

    International audience; The energy efficiency of Wireless Sensor Networks (WSNs) is considerably improved with Wake-up Radio (WuR) systems. However, their resilience to interference is often neglected in the literature. This might be an issue due to the proliferation of wireless devices and the growing field of internet of things. In this paper, we evaluate the impact of in-band interference from wireless devices on a WuR system. The approach proves that WuR systems are still performing well ...

  7. The wireless internet explained

    CERN Document Server

    Rhoton, John

    2001-01-01

    The Wireless Internet Explained covers the full spectrum of wireless technologies from a wide range of vendors, including initiatives by Microsoft and Compaq. The Wireless Internet Explained takes a practical look at wireless technology. Rhoton explains the concepts behind the physics, and provides an overview that clarifies the convoluted set of standards heaped together under the umbrella of wireless. It then expands on these technical foundations to give a panorama of the increasingly crowded landscape of wireless product offerings. When it comes to actual implementation the book gives abundant down-to-earth advice on topics ranging from the selection and deployment of mobile devices to the extremely sensitive subject of security.Written by an expert on Internet messaging, the author of Digital Press''s successful Programmer''s Guide to Internet Mail and X.400 and SMTP: Battle of the E-mail Protocols, The Wireless Internet Explained describes and evaluates the current state of the fast-growing and crucial...

  8. A comparison of two methods to assess audience-induced changes in male mate choice

    Directory of Open Access Journals (Sweden)

    Madlen ZIEGE, Carmen HENNIGE-SCHULZ, Frauke MUECKSCH,David BIERBACH, Ralph TIEDEMANN, Bruno STREIT, Martin PLATH

    2012-02-01

    Full Text Available Multidirectional communicative interactions in social networks can have a profound effect on mate choice behavior. Male Atlantic molly Poecilia mexicana exhibit weaker mating preferences when an audience male is presented. This could be a male strategy to reduce sperm competition risk: interacting more equally with different females may be advantageous because rivals might copy mate choice decisions. In line with this hypothesis, a previous study found males to show a strong audience effect when being observed while exercising mate choice, but not when the rival was presented only before the choice tests. Audience effects on mate choice decisions have been quantified in poeciliid fishes using association preference designs, but it remains unknown if patterns found from measuring association times translate into actual mating behavior. Thus, we created five audience treatments simulating different forms of perceived sperm competition risk and determined focal males’ mating preferences by scoring pre-mating (nipping and mating behavior (gonopodial thrusting. Nipping did not reflect the pattern that was found when association preferences were measured, while a very similar pattern was uncovered in thrusting behavior. The strongest response was observed when the audience could eavesdrop on the focal male’s behavior. A reduction in the strength of focal males’ preferences was also seen after the rival male had an opportunity to mate with the focal male’s preferred mate. In comparison, the reduction of mating preferences in response to an audience was greater when measuring association times than actual mating behavior. While measuring direct sexual interactions between the focal male and both stimulus females not only the male’s motivational state is reflected but also females’ behavior such as avoidance of male sexual harassment [Current Zoology 58 (1: 84–94, 2012].

  9. Wireless rechargeable sensor networks

    CERN Document Server

    Yang, Yuanyuan

    2015-01-01

    This SpringerBrief provides a concise guide to applying wireless energy transfer techniques in traditional battery-powered sensor networks. It examines the benefits and challenges of wireless power including efficiency and reliability. The authors build a wireless rechargeable sensor networks from scratch and aim to provide perpetual network operation. Chapters cover a wide range of topics from the collection of energy information and recharge scheduling to joint design with typical sensing applications such as data gathering. Problems are approached using a natural combination of probability

  10. Wireless network pricing

    CERN Document Server

    Huang, Jianwei

    2013-01-01

    Today's wireless communications and networking practices are tightly coupled with economic considerations, to the extent that it is almost impossible to make a sound technology choice without understanding the corresponding economic implications. This book aims at providing a foundational introduction on how microeconomics, and pricing theory in particular, can help us to understand and build better wireless networks. The book can be used as lecture notes for a course in the field of network economics, or a reference book for wireless engineers and applied economists to understand how pricing

  11. Wireless mesh networks

    CERN Document Server

    Held, Gilbert

    2005-01-01

    Wireless mesh networking is a new technology that has the potential to revolutionize how we access the Internet and communicate with co-workers and friends. Wireless Mesh Networks examines the concept and explores its advantages over existing technologies. This book explores existing and future applications, and examines how some of the networking protocols operate.The text offers a detailed analysis of the significant problems affecting wireless mesh networking, including network scale issues, security, and radio frequency interference, and suggests actual and potential solutions for each pro

  12. Optical and wireless technologies

    CERN Document Server

    Tiwari, Manish; Singh, Ghanshyam; Minzioni, Paolo

    2018-01-01

    This book presents selected papers from 1st International Conference on Optical and Wireless Technologies, providing insights into the analytical, experimental, and developmental aspects of systems, techniques, and devices in these spheres. It explores the combined use of various optical and wireless technologies in next-generation networking applications, and discusses the latest developments in applications such as photonics, high-speed communication systems and networks, visible light communication, nanophotonics, and wireless and multiple-input-multiple-output (MIMO) systems. The book will serve as a valuable reference resource for academics and researchers across the globe.

  13. Communication of technical information to lay audiences

    International Nuclear Information System (INIS)

    Bowes, J.E.; Stamm, K.R.; Jackson, K.M.; Moore, J.

    1978-05-01

    One of the objectives of the National Waste Terminal Storage (NWTS) Program is to provide terminal storage facilities for commercial radioactive wastes in various geologic formations at multiple locations in the United States. The activities performed under the NWTS Program will affect regional, state, and local areas, and widespread public interest in this program is expected. Since a large part of the NWTS Program deals with technical information it was considered desirable to initiate a study dealing with possible methods of effectively transmitting this technical information to the general public. This study has the objective of preparing a state-of-the-art report on the communication of technical information to lay audiences. The particular task of communicating information about the NWTS Program to the public is discussed where appropriate. The results of this study will aid the NWTS Program in presenting to the public the quite diverse technical information generated within the program so that a widespread, thorough public understanding of the NWTS Program might be achieved. An annotated bibliography is included

  14. Audience readings of media messages about MRSA.

    Science.gov (United States)

    Washer, P; Joffe, H; Solberg, C

    2008-09-01

    This paper explores whether, and to what extent, national newspaper messages tally with public perceptions about meticillin-resistant Staphylococcus aureus (MRSA). It compares research on media messages about MRSA with interview data gathered from a demographically diverse sample of 60 people interviewed from the Greater London area. Across the interview sample there was a shared consensus that most people associated MRSA not with the history of antibiotic use, but with dirty and poorly managed hospitals. Some media messages, such as blaming MRSA on the alleged 'management culture' of the NHS, seemed to capture the Zeitgeist, whereas others, in particular the 'celebrity victims' of MRSA, did not seem to resonate with the audience. This study also found that ideas based on scientific understandings about germ theory and the immune system were held alongside folklore such as miasmic theory. The comparison of media and mind thus points to the existence of pre-scientific understandings of germs, contagion and blame in parallel with the biomedical story in the minds of the public. The findings contribute to our understanding of the public and patients' views of this infection.

  15. Media perspective - new opportunities for reaching audiences

    Science.gov (United States)

    Haswell, Katy

    2007-08-01

    The world of media is experiencing a period of extreme and rapid change with the rise of internet television and the download generation. Many young people no longer watch standard TV. Instead, they go on-line, talking to friends and downloading pictures, videos, music clips to put on their own websites and watch/ listen to on their laptops and mobile phones. Gone are the days when TV controllers determined what you watched and when you watched it. Now the buzzword is IPTV, Internet Protocol Television, with companies such as JOOST offering hundreds of channels on a wide range of subjects, all of which you can choose to watch when and where you wish, on your high-def widescreen with stereo surround sound at home or on your mobile phone on the train. This media revolution is changing the way organisations get their message out. And it is encouraging companies such as advertising agencies to be creative about new ways of accessing audiences. The good news is that we have fresh opportunities to reach young people through internet-based media and material downloaded through tools such as games machines, as well as through the traditional media. And it is important for Europlanet to make the most of these new and exciting developments.

  16. Wireless capsule endoscopy

    Science.gov (United States)

    Iddan, Gavriel; Meron, Gavriel; Glukhovsky, Arkady; Swain, Paul

    2000-05-01

    We have developed a new type of endoscopy, which for the first time allows painless endoscopic imaging of the whole of the small bowel. This procedure involves a wireless capsule endoscope and we describe here its successful testing in humans.

  17. Green heterogeneous wireless networks

    CERN Document Server

    Ismail, Muhammad; Nee, Hans-Peter; Qaraqe, Khalid A; Serpedin, Erchin

    2016-01-01

    This book focuses on the emerging research topic "green (energy efficient) wireless networks" which has drawn huge attention recently from both academia and industry. This topic is highly motivated due to important environmental, financial, and quality-of-experience (QoE) considerations. Specifically, the high energy consumption of the wireless networks manifests in approximately 2% of all CO2 emissions worldwide. This book presents the authors’ visions and solutions for deployment of energy efficient (green) heterogeneous wireless communication networks. The book consists of three major parts. The first part provides an introduction to the "green networks" concept, the second part targets the green multi-homing resource allocation problem, and the third chapter presents a novel deployment of device-to-device (D2D) communications and its successful integration in Heterogeneous Networks (HetNets). The book is novel in that it specifically targets green networking in a heterogeneous wireless medium, which re...

  18. Wireless radio a history

    CERN Document Server

    Coe, Lewis

    2006-01-01

    ""Informative...recommended""--Choice; ""interesting...a good read...well worth reading""--Contact Magazine. This history first looks at Marconi's wireless communications system and then explores its many applications, including marine radio, cellular telephones, police and military uses, television and radar. Radio collecting is also discussed, and brief biographies are provided for the major figures in the development and use of the wireless.

  19. Wireless Networks Security

    OpenAIRE

    Jenko, Marko

    2016-01-01

    In this thesis we deal with security, penetration testing and different types of attacks on wireless networks. We theoretically familiarize with the field of wireless networks, security mechanisms and the most used security standards. Then we systematically overview the field of penetration testing. We divide the penetration testing on types and different methodologies. We explain the tasks of the provider and the subscriber in penetration testing. Description of the process of conducting the...

  20. 2014 International Conference on Wireless Communications, Networking and Applications

    CERN Document Server

    2016-01-01

    This book is based on a series of conferences on Wireless Communications, Networking and Applications that have been held on December 27-28, 2014 in Shenzhen, China. The meetings themselves were a response to technological developments in the areas of wireless communications, networking and applications and facilitate researchers, engineers and students to share the latest research results and the advanced research methods of the field. The broad variety of disciplines involved in this research and the differences in approaching the basic problems are probably typical of a developing field of interdisciplinary research. However, some main areas of research and development in the emerging areas of wireless communication technology can now be identified. The contributions to this book are mainly selected from the papers of the conference on wireless communications, networking and applications and reflect the main areas of interest: Section 1 - Emerging Topics in Wireless and Mobile Computing and Communications...

  1. Audience noise in concert halls during musical performances

    DEFF Research Database (Denmark)

    Jeong, Cheol-Ho; Marie, Pierre; Brunskog, Jonas

    2012-01-01

    Noise generated by the audience during musical performances is audible and sometimes disturbing. In this study, an attempt to estimate such audience noise was carried out. From the recordings of performances in five performance spaces (four concert halls and one opera house), probability density ....... (C) 2012 Acoustical Society of America. [http://dx.doi.org.globalproxy.cvt.dk/10.1121/1.3689558]...

  2. Museum Accessibility: Combining Audience Research and Staff Training

    Science.gov (United States)

    Levent, Nina; Reich, Christine

    2013-01-01

    This article discusses an audience-informed professional development model that combines audience research focus groups and staff training that includes interaction and direct feedback from visitors, in this case, visitors with low vision. There are two critical components to this model: one is that museums' programming decisions are informed by…

  3. eTheatre: Connecting with the remote audiences

    NARCIS (Netherlands)

    C. Wang (Chen); E. Geelhoed; P.S. Cesar Garcia (Pablo Santiago)

    2017-01-01

    textabstractIn September 2014, a local theatre company performed "the Tempest" simultaneously at two different locations to two separate audiences. Both audiences were linked together using an advanced video system, where several cameras captured the play. This is just one example of the radical

  4. Physical Activity in the Mass Media: An Audience Perspective

    Science.gov (United States)

    Smith, Ben J.; Bonfiglioli, Catriona M. F.

    2015-01-01

    Physical activity's role in promoting health is highlighted in public health campaigns, news and current affairs, reality television and other programs. An investigation of audience exposure, beliefs and reactions to media portrayals of physical activity offers insights into the salience and influence of this communication. An audience reception…

  5. Audience noise in concert halls during musical performances

    DEFF Research Database (Denmark)

    Marie, Pierre; Jeong, Cheol-Ho; Brunskog, Jonas

    2012-01-01

    Noise generated by the audience during musical performances is audible and sometimes disturbing. In this study, an attempt to estimate such audience noise was carried out. From the recordings of performances in five performance spaces (four concert halls and one opera house), probability density...

  6. How Films Function as Persuasion for the Mass Audience.

    Science.gov (United States)

    O'Donnell, Victoria

    Reaching millions of people weekly, film is possibly the most persuasive of all media today. Its success is due to the combination of the filmmakers' shrewd audience analysis and audience techniques with the medium's ability to involve viewers intellectually, emotionally, and even physically in the vivid images on the screen. Once a major means of…

  7. Audience Insights: Communicating to Teens (Aged 12-17)

    Science.gov (United States)

    Centers for Disease Control and Prevention, 2009

    2009-01-01

    CDC's Marketing and Communication Strategy Branch (MCSB) in the National Center for Health Marketings Division of Health Communication and Marketing divides audiences into segments with similar needs, preferences, and characteristics and provides CDC programs with audience-specific information, marketing expertise, and communication planning. To…

  8. Audience and the use of minority languages on Twitter

    NARCIS (Netherlands)

    Nguyen, D.; Trieschnigg, D.; Cornips, L.

    2015-01-01

    On Twitter, many users tweet in more than one language. In this study, we examine the use of two Dutch minority languages. Users can engage with different audiences and by analyzing different types of tweets, we find that characteristics of the audience influence whether a minority language is used.

  9. Audience and the Use of Minority Languages on Twitter

    NARCIS (Netherlands)

    Nguyen, Dong-Phuong; Trieschnigg, Rudolf Berend; Cornips, Leonie

    On Twitter, many users tweet in more than one language. In this study, we examine the use of two Dutch minority languages. Users can engage with different audiences and by analyzing different types of tweets, we find that characteristics of the audience influence whether a minority language is used.

  10. Cui narro haec ? Augustine and his Manichaean audience: A re ...

    African Journals Online (AJOL)

    Augustine and his Manichaean audience: A re-reading of the first three books of the Confessions. ... The issue of intended audience in the first three books of Augustine's Confessions is investigated in light of the presence of terms and phrases that may have had special connotations for potential Manichaean readers.

  11. Transparent graphene microstrip filters for wireless communications

    Science.gov (United States)

    Wang, Jinchen; Guan, Yifei; Yu, Hua; Li, Na; Wang, Shuopei; Shen, Cheng; Dai, Zhijiang; Gan, Decheng; Yang, Rong; He, Songbai; Zhang, Guangyu

    2017-08-01

    A microstrip is an indispensable component for wireless communication circuits. With the development of 5G technology, optically transparent microstrip filters urgently need to be developed. In this work, we have theoretically and experimentally demonstrated the immense potential of graphene microstrips for transparent wireless communication circuits in the 5G era. Both wideband and dual-band transparent graphene microstrip filters have shown more than 80% optical transmissivity in the region from 250 nm to 2000 nm with good frequency responses. S and C band microwave signals can transmit along the graphene microstrip lines effectively while coupling excitations produce relatively large insertion losses. Our results show that transparent microstrips designed with high-quality graphene will largely scale down the size of the wireless devices and thus play an irreplaceable role in the 5G era.

  12. Wireless Networks: New Meaning to Ubiquitous Computing.

    Science.gov (United States)

    Drew, Wilfred, Jr.

    2003-01-01

    Discusses the use of wireless technology in academic libraries. Topics include wireless networks; standards (IEEE 802.11); wired versus wireless; why libraries implement wireless technology; wireless local area networks (WLANs); WLAN security; examples of wireless use at Indiana State University and Morrisville College (New York); and useful…

  13. Social Audience in Spain: Succesful strategies in national TV

    Directory of Open Access Journals (Sweden)

    Marta Saavedra Llamas

    2015-07-01

    Full Text Available This research presents the concept of social audience, as a new narrative space born in the convergence of the TV audience and the user’s conversations in Twitter, and examine strategies of TV programs in Spain with higher social audience. Understand what exactly the social audience is, how does it works or what kind of metrics are made for it, becomes more necessary than ever to deepen into the uses and opportunities facing both the television media and advertisers who choose to invest in a TV space.Through the study of successful cases already implemented is to establish formulas for success that achieve a more active participation of users, transfer from social to traditional audience and the profitable inclusion of brands in this full of possibilities new communication scenario.

  14. Extending IPY Data to a Wider Audience

    Science.gov (United States)

    Turrin, M.; Bell, R. E.; Pfirman, S. L.

    2010-12-01

    Perhaps the most significant IPY contribution to science education was the vast amount of data collected at the polar-regions on Earth systems and processes that was made immediately available to teachers and curriculum developers. Supplementing textbooks with the Internet as an education partner, allowed participating teachers to transform science education through: their use of current data as an integral component of their classroom teaching; their training of students to seek out data as evidence of Earth processes; and their instruction to students on how to validate sources and uses of data. Yet, for every teacher and student who has been part of this successful IPY outreach there are many more who have not been reached, don’t know how to include polar science into their coursework, or don’t comfortably work with data. Our experience with data education projects suggests that to reach the next round of students, teachers, educators and the wider adult population we need to translate this data so it is accessible through carefully constructed activities, simulations, and games. In addition we need to actively seek new partnership and outlet opportunities. The collected measurements tell us that our poles are warming on a human timescale. Using data to tell the story, the unambiguous signal of warming makes it accessible to a much broader audience. Our experience has shown that, for a novice population working with data, the educational effectiveness is significantly enhanced when the signal in the data is strong and the Earth processes are clear. Building upon IPY data and resources, focusing on the Earth’s changing climate, and working with partnerships developed over the last two years, Lamont has put together several new education and outreach collaborations. Our goal is to reach new audiences through: 1) Inventorying, Assessing and Planning - Through an NSF planning grant we are leveraging IPY connections and findings in a Polar Climate Education

  15. Communicating Science with Batiks: Broadening the Audience

    Science.gov (United States)

    Pilkey, O. H.; Fraser, M. E.

    2012-12-01

    Batik artist Fraser and coastal geologist Pilkey began their collaboration in 1994 at the Smithsonian Air and Space Museum. Since that time they have made over 25 joint presentations and produced 25 educational art exhibitions, some with as many as 60 batiks on silk, each large-scale artwork accompanied by a brief wall description of its geologic significance. Among other venues, the exhibitions have been housed at The National Academy of Sciences, The National Science Foundation, Duke University's Museum of Art, and the North Carolina Museum of Natural Sciences. They were also featured in a National Geographic TV special and have been widely picked up in cyberspace. In addition, the duo has published 2 books. One, A Celebration of the World's Barrier Islands (2003), combines color images with batiks, and the second, Global Climate Change: A Primer (2011), is illustrated exclusively with batiks. The creation of each batik is preceded by a scientist-artist conference wherein they discuss the salient features of the natural system to be depicted. The objective is to show the majesty of selected natural features or processes and at the same time to communicate the science behind them. From the artist's standpoint, this collaboration has given focus and purpose to her art and fulfills her desire to support environmental causes. The science-art alliance has been highly successful in attracting a new audience to the problems facing barrier islands and also to the broader subject of global climate change. A feared backlash from hardnosed science colleagues over "dilution" or "softening" of science has not materialized. A future collaboration with the "American Rivers" society will highlight the problems facing rivers.A batik of an iceberg showing the typical proportion of underwater versus above-water ice volumes.

  16. Arctic Change Information for a Broad Audience

    Science.gov (United States)

    Soreide, N. N.; Overland, J. E.; Calder, J.

    2002-12-01

    Demonstrable environmental changes have occurred in the Arctic over the past three decades. NOAA's Arctic Theme Page is a rich resource web site focused on high latitude studies and the Arctic, with links to widely distributed data and information focused on the Arctic. Included is a collection of essays on relevant topics by experts in Arctic research. The website has proven useful to a wide audience, including scientists, students, teachers, decision makers and the general public, as indicated through recognition by USA Today, Science magazine, etc. (http://www.arctic.noaa.gov) Working jointly with NSF and the University of Washington's Polar Science Center as part of the Study of Environmental Arctic Change (SEARCH) program, NOAA has developed a website for access to pan-Arctic time series spanning diverse data types including climate indices, atmospheric, oceanic, sea ice, terrestrial, biological and fisheries. Modest analysis functions and more detailed analysis results are provided. (http://www.unaami.noaa.gov/). This paper will describe development of an Artic Change Detection status website to provide a direct and comprehensive view of previous and ongoing change in the Arctic for a broad climate community. For example, composite metrics are developed using principal component analysis based on 86 multivariate pan-Arctic time series for seven data types. Two of these metrics can be interpreted as a regime change/trend component and an interdecadal component. Changes can also be visually observed through tracking of 28 separate biophysical indicators. Results will be presented in the form of a web site with relevant, easily understood, value-added knowledge backed by peer review from Arctic scientists and scientific journals.

  17. Measuring Audience Responses of Video Advertisements using Physiological Sensors

    NARCIS (Netherlands)

    C. Wang (Chen); P.S. Cesar Garcia (Pablo Santiago)

    2015-01-01

    htmlabstractThe selection of the audio track, the best timing to overlay the logo, and the overall duration, all these issues affect the effectiveness of immersive media. Since traditional methods to evaluate the user experience of potential consumers (e.g., surveys or eye tracking) have severe

  18. Experiences of using an interactive audience response system in lectures

    OpenAIRE

    Uhari, Matti; Renko, Marjo; Soini, Hannu

    2003-01-01

    Abstract Background Lectures are good for presenting information and providing explanations, but because they lack active participation they have been neglected. Methods Students' experiences were evaluated after exposing them to the use of voting during lectures in their paediatrics course. Questions were delivered to the students taking paediatrics course. Thirty-six students out of the total of 40 (90%) attended the opening lecture, at which the first survey concerning previous experiences...

  19. Experiences of using an interactive audience response system in lectures

    Directory of Open Access Journals (Sweden)

    Renko Marjo

    2003-12-01

    Full Text Available Abstract Background Lectures are good for presenting information and providing explanations, but because they lack active participation they have been neglected. Methods Students' experiences were evaluated after exposing them to the use of voting during lectures in their paediatrics course. Questions were delivered to the students taking paediatrics course. Thirty-six students out of the total of 40 (90% attended the opening lecture, at which the first survey concerning previous experiences of lectures was performed. Thirty-nine students (98% answered the second series of questions at the end of the paediatrics course. Results Most of the students felt that voting improved their activity during lectures, enhanced their learning, and that it was easier to make questions during lectures than earlier. Conclusions The students gained new, exciting insights much more often during the paediatrics course than before. We as teachers found that voting during lectures could easily overcome some of the obstacles of good lecturing.

  20. Measuring Audience Responses towards the Musical Background in a Commercial

    NARCIS (Netherlands)

    C. Wang (Chen); P.S. Cesar Garcia (Pablo Santiago)

    2015-01-01

    htmlabstractThe selection of the audio track; the best timing to overlay the logo; the overall duration… all these issues affect the effectiveness of a commercial. Together with the media studies faculty of a Chinese University, we explored the impact of different decisions when creating on the

  1. OPTICAL WIRELESS COMMUNICATION SYSTEM

    Directory of Open Access Journals (Sweden)

    JOSHUA L.Y. CHIENG

    2016-02-01

    Full Text Available The growing demand of bandwidth in this modern internet age has been testing the existing telecommunication infrastructures around the world. With broadband speeds moving towards the region of Gbps and Tbps, many researches have begun on the development of using optical wireless technology as feasible and future methods to the current wireless technology. Unlike the existing radio frequency wireless applications, optical wireless uses electromagnetic spectrums that are unlicensed and free. With that, this project aim to understand and gain better understanding of optical wireless communication system by building an experimental and simulated model. The quality of service and system performance will be investigated and reviewed. This project employs laser diode as the propagation medium and successfully transferred audio signals as far as 15 meters. On its quality of service, results of the project model reveal that the bit error rate increases, signal-to-noise ratio and quality factor decreases as the link distance between the transmitter and receiver increases. OptiSystem was used to build the simulated model and MATLAB was used to assist signal-to-noise ratio calculations. By comparing the simulated and experimental receiver’s power output, the experimental model’s efficiency is at 66.3%. Other than the system’s performance, challenges and factors affecting the system have been investigated and discussed. Such challenges include beam divergence, misalignment and particle absorption.

  2. EXPERIMENTAL PERFORMANCE ANALYSIS OF WIRELESS ...

    African Journals Online (AJOL)

    ABSTRACT. Wireless networking is currently being deployed for various applications. However, the application of wireless networking in healthcare remains a challenge mainly because of security and reliability concerns. This paper presents experimental results of performance analysis of a wireless network for healthcare ...

  3. Developing and delivering food systems training programs for 21st century audiences

    Directory of Open Access Journals (Sweden)

    Troy Hahn

    2016-04-01

    Full Text Available Expectations for training programmes today are very different from expectations for training programmes in the past, because today’s audiences are not only multigenerational, but the younger generations learn in distinctly different ways from older, more traditional audiences. To meet the needs of these multigenerational audiences, the Auburn University Food Systems Institute (AUFSI has developed on-demand, online courses that offer a variety of ways for learners to interact with training materials. For example, a typical course may offer not only traditional text, but audio, video, simulations, and more. In addition, AUFSI has developed supporting educational tools such as interactive virtual tours and video games. This approach to creating courses is a response to the  different levels of experiences of the generations as well as different expectations of how materials should be delivered. In order to be effective, training materials need to be designed to appeal to this multigenerational audience. Traditionalists (born before 1946 prefer face-to-face training programmes. Baby Boomers (born 1946-1964 are more accepting of technology. Generations X (born 1965-1980, Y (born 1981- 2000 and C (born after 2000, however, expect to receive training at their convenience, to have it delivered electronically, and to be entertained as well as educated.

  4. Wireless Luminescence Integrated Sensors (WLIS)

    Energy Technology Data Exchange (ETDEWEB)

    Simpson, M.L.; Sayler, G.S. (Univ. Tennessee)

    2003-11-10

    The goal of this project was the development of a family of wireless, single-chip, luminescence-sensing devices to solve a number of difficult distributed measurement problems in areas ranging from environmental monitoring and assessment to high-throughput screening of combinatorial chemistry libraries. These wireless luminescence integrated sensors (WLIS) consist of a microluminometer, wireless data transmitter, and RF power input circuit all realized in a standard integrated circuit (IC) process with genetically engineered, whole-cell, bioluminescent bioreporters encapsulated and deposited on the IC. The end product is a family of compact, low-power, rugged, low-cost sensors. As part of this program they developed an integrated photodiode/signal-processing scheme with an rms noise level of 175 electrons/second for a 13-minute integration time, and a quantum efficiency of 66% at the 490-nm bioluminescent wavelength. this performance provided a detection limit of < 1000 photons/second. Although sol-gel has previously been used to encapsulate yeast cells, the reaction conditions necessary for polymerization (primarily low pH) have beforehand proven too harsh for bacterial cell immobilizations. Utilizing sonication methods, they have were able to initiate polymerization under pH conditions conductive to cell survival. both a toluene bioreporter (Pseudomonas putida TVA8) and a naphthalene bioreporter (Pseudomonas fluorescens HK44) were successfully encapsulated in sol-gel and shown to produce a fairly significant bioluminescent response. In addition to the previously developed naphthalene- and toluene-sensitive bioreporters, they developed a yeast-based xenoestrogen reporter. This technology has been licensed by Micro Systems Technologies, a startup company in Dayton, Ohio for applications in environmental containments monitoring, and for detecting weapons of mass destruction (i.e. homeland security).

  5. Fiber wireless networks

    Science.gov (United States)

    Nirmalathas, A.; Bakaul, M.; Lim, C.; Novak, D.; Waterhouse, R.

    2005-11-01

    Broadband wireless networks based on a number of new frequency windows at higher microwave and millimeter-wave frequencies have been actively pursued to provide ultra-high bandwidth services over a wireless networks. These networks will have a large number of antenna base-stations with high throughput. Significant reductions in antenna base-station complexity can be achieved if most of the signal routing and switching functions centralized at a central office in the network. In such a network, fiber feed networks can be effectively deployed to provide high bandwidth interconnections between multiple antenna base-stations and the central office. With wavelength division multiplexing, efficient optical fiber feed network architectures could be realised to provide interconnection to a large number of antenna base-stations. In this paper, we present an over view of our recent research into system technologies for fiber wireless networks.

  6. Wireless physical layer security

    Science.gov (United States)

    Poor, H. Vincent; Schaefer, Rafael F.

    2017-01-01

    Security in wireless networks has traditionally been considered to be an issue to be addressed separately from the physical radio transmission aspects of wireless systems. However, with the emergence of new networking architectures that are not amenable to traditional methods of secure communication such as data encryption, there has been an increase in interest in the potential of the physical properties of the radio channel itself to provide communications security. Information theory provides a natural framework for the study of this issue, and there has been considerable recent research devoted to using this framework to develop a greater understanding of the fundamental ability of the so-called physical layer to provide security in wireless networks. Moreover, this approach is also suggestive in many cases of coding techniques that can approach fundamental limits in practice and of techniques for other security tasks such as authentication. This paper provides an overview of these developments.

  7. The Importance of Audience and Agency for Representation: A Case Study of an Urban Youth Media Community.

    Science.gov (United States)

    Charmaraman, Linda

    2010-01-01

    PURPOSE: Urban youths' agency to represent their realities through media has been largely unexplored in the youth development literature. In this qualitative case study of an after-school youth media program in the Bay Area, expressions of youth agency and the role of audiences are explored during the process of producing videos for public consumption. METHODOLOGY: As participant observer of 14 ethnically diverse youth participants aged between 15 and 18 years over 18 months, I documented (a) the kind of agencies participants engaged in and (b) the impact of live and imagined future audiences on youths' creative processes. Analyses of field notes, semi-structured interviews, and media projects were conducted using thematic analysis to inductively generate emerging categories. FINDINGS: Themes included an agentive sense of self-efficacy, commitment, and responsibility, as well as perceived contributions to local audiences and an emerging collective identity. The youth demonstrated their increased sense of a social or civic duty to realistically represent youth of color to familiar and unfamiliar audiences. IMPLICATIONS: This case study demonstrated how one youth media organization fostered agency through youth authorship, production, distribution, and local community dialogue. By documenting the impact of audiences from conception to public reception, this study provides valuable insight into the agentive process of publicly "performing" a commitment to complete a social change video project. CONTRIBUTION: This chapter underscores the value of performance within youth development programs and the critical component of audiences as one form of authentic assessment in order to foster individual and collective agency.

  8. Terabit Wireless Communication Challenges

    Science.gov (United States)

    Hwu, Shian U.

    2012-01-01

    This presentation briefly discusses a research effort on Terabit Wireless communication systems for possible space applications. Recently, terahertz (THz) technology (300-3000 GHz frequency) has attracted a great deal of interest from academia and industry. This is due to a number of interesting features of THz waves, including the nearly unlimited bandwidths available, and the non-ionizing radiation nature which does not damage human tissues and DNA with minimum health threat. Also, as millimeter-wave communication systems mature, the focus of research is, naturally, moving to the THz range. Many scientists regard THz as the last great frontier of the electromagnetic spectrum, but finding new applications outside the traditional niches of radio astronomy, Earth and planetary remote sensing, and molecular spectroscopy particularly in biomedical imaging and wireless communications has been relatively slow. Radiologists find this area of study so attractive because t-rays are non-ionizing, which suggests no harm is done to tissue or DNA. They also offer the possibility of performing spectroscopic measurements over a very wide frequency range, and can even capture signatures from liquids and solids. According to Shannon theory, the broad bandwidth of the THz frequency bands can be used for terabit-per-second (Tb/s) wireless communication systems. This enables several new applications, such as cell phones with 360 degrees autostereoscopic displays, optic-fiber replacement, and wireless Tb/s file transferring. Although THz technology could satisfy the demand for an extremely high data rate, a number of technical challenges need to be overcome before its development. This presentation provides an overview the state-of-the- art in THz wireless communication and the technical challenges for an emerging application in Terabit wireless systems. The main issue for THz wave propagation is the high atmospheric attenuation, which is dominated by water vapor absorption in the THz

  9. Audience as analyst: Dennis Potter's The Singing Detective.

    Science.gov (United States)

    Jeffrey, W

    1997-06-01

    Author Dennis Potter has written an exceptional psychoanalytically informed television series in The Singing Detective. Potter succeeds by echewing the usual portrayal of psychoanalysis in cinema and television as a therapy which the viewer observes but instead creates, by means of the content and structure of the series, a production that forces the audience into a role of analyst. The story of the current life and the childhood of the protagonist, Philip Marlow, has depth and context which allows the audience to examine the personality of Marlow, including character pathology and traits, sexuality, fantasy, dreams, and delusions from several metapsychological viewpoints. Potter allows the audience to use the dynamic, genetic, topographic, and, most unusual in drama, structural viewpoints. The audience can experience aspects of an analyst's experience, including the process of formulating and evaluating over time analytic hypotheses and coping with emotional reactions to the material which at times has transferencelike qualities.

  10. [Analysis of foods advertised to childhood audience on chilean television].

    Science.gov (United States)

    González-Hidalgo, Catalina

    2017-01-01

    To examine food advertising aimed at childhood's audience broadcast on Chilean television. Cross-sectional study. Food advertising broadcast by 4 open signal TV channels was recorded for 12 hours daily on twelve days randomly selected. Notices were classified according to food groups and level of processing. The frequency of food advertisement aimed to childhood audience was compared with those for adults. Nutrient profile of foods advertised was described. In 144 hours of recording appeared 530 food advertisement; 53.2% were aimed to childhood audience. The most advertised foods were sugary dairy (28.4%), sweetened beverages (25.5%), and sweetened cereals (17.7%). Of the foods advertised to childhood audience, 75% exceeds the criterion for free sugars. Chilean television advertises ultra-processed foods that exceed the limits of free sugars.

  11. Wireless communications algorithmic techniques

    CERN Document Server

    Vitetta, Giorgio; Colavolpe, Giulio; Pancaldi, Fabrizio; Martin, Philippa A

    2013-01-01

    This book introduces the theoretical elements at the basis of various classes of algorithms commonly employed in the physical layer (and, in part, in MAC layer) of wireless communications systems. It focuses on single user systems, so ignoring multiple access techniques. Moreover, emphasis is put on single-input single-output (SISO) systems, although some relevant topics about multiple-input multiple-output (MIMO) systems are also illustrated.Comprehensive wireless specific guide to algorithmic techniquesProvides a detailed analysis of channel equalization and channel coding for wi

  12. Pervasive wireless environments

    CERN Document Server

    Yang, Jie; Trappe, Wade; Cheng, Jerry

    2014-01-01

    This Springer Brief provides a new approach to prevent user spoofing by using the physical properties associated with wireless transmissions to detect the presence of user spoofing. The most common method, applying cryptographic authentication, requires additional management and computational power that cannot be deployed consistently. The authors present the new approach by offering a summary of the recent research and exploring the benefits and potential challenges of this method. This brief discusses the feasibility of launching user spoofing attacks and their impact on the wireless and sen

  13. Wireless optical telecommunications

    CERN Document Server

    Bouchet, Olivier

    2013-01-01

    Wireless optical communication refers to communication based on the unguided propagation of optical waves. The past 30 years have seen significant improvements in this technique - a wireless communication solution for the current millennium - that offers an alternative to radio systems; a technique that could gain attractiveness due to recent concerns regarding the potential effects of radiofrequency waves on human health.The aim of this book is to look at the free space optics that are already used for the exchange of current information; its many benefits, such as incorporating chan

  14. Wireless telecommunication systems

    CERN Document Server

    Terré, Michel; Vivier, Emmanuelle

    2013-01-01

    Wireless telecommunication systems generate a huge amount of interest. In the last two decades, these systems have experienced at least three major technological leaps, and it has become impossible to imagine how society was organized without them. In this book, we propose a macroscopic approach on wireless systems, and aim at answering key questions about power, data rates, multiple access, cellular engineering and access networks architectures.We present a series of solved problems, whose objective is to establish the main elements of a global link budget in several radiocommunicati

  15. Data converters for wireless standards

    CERN Document Server

    Shi, Chunlei

    2002-01-01

    Wireless communication is witnessing tremendous growth with proliferation of different standards covering wide, local and personal area networks (WAN, LAN and PAN). The trends call for designs that allow 1) smooth migration to future generations of wireless standards with higher data rates for multimedia applications, 2) convergence of wireless services allowing access to different standards from the same wireless device, 3) inter-continental roaming. This requires designs that work across multiple wireless standards, can easily be reused, achieve maximum hardware share at a minimum power consumption levels particularly for mobile battery-operated devices.

  16. Troubling complicity: audience ethnography, male porn viewers and feminist critique

    OpenAIRE

    Vörös , Florian

    2015-01-01

    International audience; This article offers a self-reflexive account of an audience reception study conducted in Paris, France, examining gay, bisexual and heterosexual cisgender men's everyday (and everynight) uses of pornography. The study explores the gender dynamics at work in practices such as surfing, watching, reimagining and discussing pornography, based on in-depth interviews with 34 viewers, combined with the replication of their online sexual meanderings; this positions me as a vie...

  17. Media audience development in Latvia (2004–2012)

    OpenAIRE

    Rožukalne, Anda

    2012-01-01

    This article analyses the main development trends in media audience structure and media use in Latvia since its joining the European Union in 2004. To characterize and carry out the analysis quantitative data were mainly used which are regularly provided by TNS Latvia – an agency for market, social and media research. In addition to the information provided by TNS Latvia, this summary also employs a study on broadcasting media audience structure and content priorities commissioned by the Nati...

  18. Storytelling with an Audience in the Live Planetarium Program Starball

    Science.gov (United States)

    Kaufmann, J.

    2013-04-01

    Starball was conceived as a means of connecting planetarium audiences to the night sky in an imaginative, interactive way. Developed at the Smith Planetarium at Pacific Science Center in Seattle, Starball challenges each live audience to forget the “official” constellations and create original ones based on their own experiences and dreams. This paper details the philosophy behind the show and the specific planetarium and theater methods the performers employ to create an environment where such active participation is possible.

  19. 75 FR 8400 - In the Matter of Certain Wireless Communications System Server Software, Wireless Handheld...

    Science.gov (United States)

    2010-02-24

    ... Communications System Server Software, Wireless Handheld Devices and Battery Packs; Notice of Investigation... within the United States after importation of certain wireless communications system server software... certain wireless communications system server software, wireless handheld devices or battery packs that...

  20. 75 FR 43206 - In the Matter of Certain Wireless Communications System Server Software, Wireless Handheld...

    Science.gov (United States)

    2010-07-23

    ... INTERNATIONAL TRADE COMMISSION [Investigation No. 337-TA-706] In the Matter of Certain Wireless Communications System Server Software, Wireless Handheld Devices and Battery Packs: Notice of Commission... United States after importation of certain wireless communications system server software, wireless...

  1. Living on the Edge: The Role of Proactive Caching in 5G Wireless Networks

    OpenAIRE

    Baştuğ, Ejder; Bennis, Mehdi; Debbah, Mérouane

    2014-01-01

    International audience; This article explores one of the key enablers of beyond 4G wireless networks leveraging small cell network deployments, namely proactive caching. Endowed with predictive capabilities and harnessing recent developments in storage, context-awareness and social networks, peak traffic demands can be substantially reduced by proactively serving predictable user demands, via caching at base stations and users' devices. In order to show the effectiveness of proactive caching,...

  2. Evaluations on Effectiveness of Bump-Slot over DAP-NAD-Based Tactical Wideband Wireless Networks

    OpenAIRE

    Han , Sewon; Kim , Byung-Seo

    2011-01-01

    Part 9: Session 9: Network and Mobile Computing; International audience; MIL-SD-188-220 standard has specified the operations and functions of narrowband-based tactical networks. While the conventional tactical networks have mainly dealt with voice and short message data services, the future tactical networks are evolving towards broadband and multimediaenabled wireless Ad-Hoc networks. Therefore, this paper evaluates a network access method of the standard from the wideband network perspecti...

  3. Agriculture Wireless Temperature and Humidity Sensor Network Based on ZigBee Technology

    OpenAIRE

    Wang , Xi; Gao , Hui

    2011-01-01

    Part 1: Decision Support Systems, Intelligent Systems and Artificial Intelligence Applications; International audience; Combining with agricultural production practice, we propose the agriculture wireless and humidity sensor network design, which is based on ZigBee technology. And we use the chip based on the CC2530 ZigBee protocol as the sensor nodes and coordinator nodes for data collection, transmission and display, aiming to realize the agricultural production automation and precision agr...

  4. Random Keying Technique for Security in Wireless Sensor Networks Based on Memetics

    OpenAIRE

    Sandeep Kumar, E

    2014-01-01

    International audience; Wireless Sensor Networks (WSNs) are often prone to risk of security attacks and vulnerabilities. This is because of the less human intervention in their operations. Hence, novel security mechanisms and techniques are of a prime importance in these types of networks. In this context, we propose a unique security scheme, which coalesce the random keying technique with memetics. The application of these kinds of bio-inspired computation in WSNs provides robust security in...

  5. Resource management in wireless networking

    CERN Document Server

    Cardei, Mihaela; Du, Ding-Zhu

    2005-01-01

    This is the first book that provides readers with a deep technical overview of recent advances in resource management for wireless networks at different layers of the protocol stack. The subject is explored in various wireless networks, such as ad hoc wireless networks, 3G/4G cellular, IEEE 802.11, and Bluetooth personal area networks.Survey chapters give an excellent introduction to key topics in resource management for wireless networks, while experts will be satisfied by the technical depth of the knowledge imparted in chapters exploring hot research topics.The subject area discussed in this book is very relevant today, considering the recent remarkable growth of wireless networking and the convergence of wireless personal communications, internet technologies and real-time multimedia.This volume is a very good companion for practitioners working on implementing solutions for multimedia and Quality of Service - sensitive applications over wireless networks.Written for:Researchers, faculty members, students...

  6. Matching of Energy Provisions in Multihop Wireless Infra-Structures

    Directory of Open Access Journals (Sweden)

    Rui Teng

    2016-01-01

    Full Text Available Recently there have been large advances in energy technologies for battery-operated systems, including green energy resources and high capacity batteries. The effective use of battery energy resources in wireless infrastructure networks to improve the versatility and reliability of wireless communications is an important issue. Emerging applications of smart cities, Internet of Things (IoT, and emergency responses highly rely on the basic communication network infrastructures that enable ubiquitous network connections. However, energy consumption by nodes in a wireless infrastructure network depends on the transmissions of other nodes in the network. Considering this inter-dependence is necessary to achieve efficient provision of energy in wireless networks. This paper studies the issue of energy provision for wireless relay nodes in Wireless Multihop Infrastructures (WMI assuming constraints on the total energy provision. We introduce a scheme of Energy Provision Matching (Matching-EP for WMI which optimizes energy provision based on matching of energy provision with estimates of differentiated position-dependent energy consumption by wireless nodes distributed in the network. The evaluation results show that Matching-EP with 4%–34% improvement in energy matching degree enables 10%–40% improvement of the network lifetime, and 5%–40% improvement of packet delivery compared with conventional WMI networks.

  7. Wireless Distributed Antenna MIMO

    DEFF Research Database (Denmark)

    2015-01-01

    The present disclosure relates to system applications of multicore optical fibers. One embodiment relates to a base transceiver station for a wireless telecommunication system comprising a plurality of antenna units arranged in a MIMO configuration and adapted for transmission and/or reception...

  8. Networking wireless sensors

    National Research Council Canada - National Science Library

    Krishnamachari, Bhaskar

    2005-01-01

    ... by networking techniques across multiple layers. The topics covered include network deployment, localization, time synchronization, wireless radio characteristics, medium-access, topology control, routing, data-centric techniques, and transport protocols. Ideal for researchers and designers seeking to create new algorithms and protocols and enginee...

  9. Wireless Remote Control System

    Directory of Open Access Journals (Sweden)

    Adrian Tigauan

    2012-06-01

    Full Text Available This paper presents the design of a wireless remote control system based on the ZigBee communication protocol. Gathering data from sensors or performing control tasks through wireless communication is advantageous in situations in which the use of cables is impractical. An Atmega328 microcontroller (from slave device is used for gathering data from the sensors and transmitting it to a coordinator device with the help of the XBee modules. The ZigBee standard is suitable for low-cost, low-data-rate and low-power wireless networks implementations. The XBee-PRO module, designed to meet ZigBee standards, requires minimal power for reliable data exchange between devices over a distance of up to 1600m outdoors. A key component of the ZigBee protocol is the ability to support networking and this can be used in a wireless remote control system. This system may be employed e.g. to control temperature and humidity (SHT11 sensor and light intensity (TSL230 sensor levels inside a commercial greenhouse.

  10. Subsurface Wireless Sensor Networks

    Science.gov (United States)

    Niemeier, J. J.; Davies, J. L.; Kruger, A.

    2008-12-01

    Conventional thinking holds that underground- and underwater radio communication is not possible, except at very low frequencies employing very long antennas and high transmit power. However, researchers at The University of Iowa have demonstrated that using inexpensive, low-power radios, it is in fact possible to achieve reliable underground radio communication over distances of several meters. This allows for creating underground wireless sensor networks. A proof-of-concept network was established at The University of Iowa, where nodes that measure soil moisture content are buried over a 20×20 m area (up to 1 m deep). The nodes organize themselves into a wireless sensor network, reconfigure routes as radio link quality waxes and wanes, cooperate in routing data packets to a surface base station, and so on. In an agricultural research setting, an advantage of such buried wireless sensor networks is that, if nodes were buried deep enough, they may be left in place during agricultural field work. Power consumption is an important issue in wireless sensor networks. This is especially true in a buried network where battery replacement is a major undertaking. The focus of continuing research is developing methods of inductively recharging buried sensor batteries.

  11. Insecurity of Wireless Networks

    Energy Technology Data Exchange (ETDEWEB)

    Sheldon, Frederick T [ORNL; Weber, John Mark [Dynetics, Inc.; Yoo, Seong-Moo [University of Alabama, Huntsville; Pan, W. David [University of Alabama, Huntsville

    2012-01-01

    Wireless is a powerful core technology enabling our global digital infrastructure. Wi-Fi networks are susceptible to attacks on Wired Equivalency Privacy, Wi-Fi Protected Access (WPA), and WPA2. These attack signatures can be profiled into a system that defends against such attacks on the basis of their inherent characteristics. Wi-Fi is the standard protocol for wireless networks used extensively in US critical infrastructures. Since the Wired Equivalency Privacy (WEP) security protocol was broken, the Wi-Fi Protected Access (WPA) protocol has been considered the secure alternative compatible with hardware developed for WEP. However, in November 2008, researchers developed an attack on WPA, allowing forgery of Address Resolution Protocol (ARP) packets. Subsequent enhancements have enabled ARP poisoning, cryptosystem denial of service, and man-in-the-middle attacks. Open source systems and methods (OSSM) have long been used to secure networks against such attacks. This article reviews OSSMs and the results of experimental attacks on WPA. These experiments re-created current attacks in a laboratory setting, recording both wired and wireless traffic. The article discusses methods of intrusion detection and prevention in the context of cyber physical protection of critical Internet infrastructure. The basis for this research is a specialized (and undoubtedly incomplete) taxonomy of Wi-Fi attacks and their adaptations to existing countermeasures and protocol revisions. Ultimately, this article aims to provide a clearer picture of how and why wireless protection protocols and encryption must achieve a more scientific basis for detecting and preventing such attacks.

  12. Wireless networked music performance

    CERN Document Server

    Gabrielli, Leonardo

    2016-01-01

    This book presents a comprehensive overview of the state of the art in Networked Music Performance (NMP) and a historical survey of computer music networking. It introduces current technical trends in NMP and technical issues yet to be addressed. It also lists wireless communication protocols and compares these to the requirements of NMP. Practical use cases and advancements are also discussed.

  13. Wireless Battery Management System of Electric Transport

    Science.gov (United States)

    Rahman, Ataur; Rahman, Mizanur; Rashid, Mahbubur

    2017-11-01

    Electric vehicles (EVs) are being developed and considered as the future transportation to reduce emission of toxic gas, cost and weight. The battery pack is one of the main crucial parts of the electric vehicle. The power optimization of the battery pack has been maintained by developing a two phase evaporative thermal management system which operation has been controlled by using a wireless battery management system. A large number of individual cells in a battery pack have many wire terminations that are liable for safety failure. To reduce the wiring problem, a wireless battery management system based on ZigBee communication protocol and point-to-point wireless topology has been presented. Microcontrollers and wireless modules are employed to process the information from several sensors (voltage, temperature and SOC) and transmit to the display devices respectively. The WBMS multistage charge balancing system offering more effective and efficient responses for several numbers of series connected battery cells. The concept of double tier switched capacitor converter and resonant switched capacitor converter is used for reducing the charge balancing time of the cells. The balancing result for 2 cells and 16 cells are improved by 15.12% and 25.3% respectively. The balancing results are poised to become better when the battery cells are increased.

  14. NASA Bluetooth Wireless Communications

    Science.gov (United States)

    Miller, Robert D.

    2007-01-01

    NASA has been interested in wireless communications for many years, especially when the crew size of the International Space Station (ISS) was reduced to two members. NASA began a study to find ways to improve crew efficiency to make sure the ISS could be maintained with limited crew capacity and still be a valuable research testbed in Low-Earth Orbit (LEO). Currently the ISS audio system requires astronauts to be tethered to the audio system, specifically a device called the Audio Terminal Unit (ATU). Wireless communications would remove the tether and allow astronauts to freely float from experiment to experiment without having to worry about moving and reconnecting the associated cabling or finding the space equivalent of an extension cord. A wireless communication system would also improve safety and reduce system susceptibility to Electromagnetic Interference (EMI). Safety would be improved because a crewmember could quickly escape a fire while maintaining communications with the ground and other crewmembers at any location. In addition, it would allow the crew to overcome the volume limitations of the ISS ATU. This is especially important to the Portable Breathing Apparatus (PBA). The next generation of space vehicles and habitats also demand wireless attention. Orion will carry up to six crewmembers in a relatively small cabin. Yet, wireless could become a driving factor to reduce launch weight and increase habitable volume. Six crewmembers, each tethered to a panel, could result in a wiring mess even in nominal operations. In addition to Orion, research is being conducted to determine if Bluetooth is appropriate for Lunar Habitat applications.

  15. Audience reaction movie trailers and the Paranormal Activity franchise

    Directory of Open Access Journals (Sweden)

    Alexander Swanson

    2015-03-01

    Full Text Available This article addresses the concept and growing practice of audience reaction movie trailers, specifically for films in the horror genre. Popularized by the Paranormal Activity series of films, these trailers primarily utilize green night-vision video footage of a movie theater audience reacting to the film being advertised, yet also consist of webcam recordings of screaming fans, documentary-style B-roll footage of audiences filing into preview screenings with high levels of anticipation, and close-up shots of spectator facial expressions, accompanied by no footage whatsoever from the film being advertised. In analyzing these audience-centric promotional paratexts, my aim is to reveal them as attempting to sell and legitimize the experiential, communal, and social qualities of the theatrical movie viewing experience while at the same time calling for increased fan investment in both physical and online spaces. Through the analysis of audience reaction trailers, this article hopes to both join and engender conversations about horror fan participation, the nature of anticipatory texts as manipulative, and the current state of horror gimmickry in the form of the promotional paratext.

  16. The science of science outreach: methods to maximise audience engagement

    Science.gov (United States)

    Adamson, Kathryn; Lane, Timothy

    2016-04-01

    Effective public engagement relies on a clear understanding of public audiences; their existing knowledge base and their learning preferences. Scientific content that is effective in academic spheres is not necessarily popular in the public domain. This may be due to content (e.g. beginner level to advanced terminology); presentation style (graphical, text, multimedia); audience demographic (children to adults); and entertainment value. Over the last few years, there has been a major expansion in the quantity and quality of science outreach material. For scientists, the production of outreach material, in any form, is the first giant leap to disseminating their knowledge to broader audiences. However, there is also a need to evaluate the performance of outreach material, so that its content and delivery style can be tailored and maximised for the target audience. We examine the Google Analytics data for climate science outreach website Climatica over a 12 month period in 2015. The site publishes regular posts, which take the form of short written articles, graphics, videos, or teaching resources, on all aspects of climate science. The site is publicised via social media including Twitter and Facebook. In particular, we assess website performance, in terms of website visits and post engagement. These are examined in the context of: post topic, post style, social media engagement, and the timing of post publication/advertisement. The findings of this investigation are used to explore audience preferences and mechanisms for future post development to maximise the use of this web resource.

  17. Mental health message appeals and audience engagement: Evidence from Australia.

    Science.gov (United States)

    Yap, Jo En; Zubcevic-Basic, Nives; Johnson, Lester W; Lodewyckx, Michaela A

    2017-09-07

    Social media platforms are increasingly used to disseminate social marketing messages about mental health and wellbeing. This study presents a range of message appeals used in social media enabled mental health promotion and stigma reduction messages. Furthermore, it examines the relationship between the type of message appeals and audience engagement. A content analysis of 65 organisation-generated YouTube videos about depression and anxiety and stigma reduction was conducted. The most utilised message appeal was Sorrow, followed by Affiliation, Ease/Convenience, Hope, Humour, Guilt/Shame, Heroic/Successful, and Fear. Multiple regression analysis was used to examine the relationship between the type of message appeals and audience engagement in terms of the number of likes, comments, and shares. The analysis revealed that Sorrow is the most useful message appeal for generating audience comments. However, Sorrow is negatively associated with the number of likes and shares. The results suggest that mental health promotion messages may engage a larger audience through Affiliation and Hope as they have a positive impact on the number of shares. This could, in effect, turn audiences into vocal advocates for mental health promotion and stigma reduction messages. © The Author 2017. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  18. An audience with … the public, the representative, the sovereign

    Directory of Open Access Journals (Sweden)

    Milanese Niccolo

    2017-01-01

    Full Text Available The right of audience, in common law, is the right of a lawyer to represent a client in a court. Royalty, the Pope and some Presidents grant audiences. What does the power to grant an audience consist in? And what does it mean to demand an audience (with? Through a reading of the way in which the vocabulary of theatre, acting and audience is involved in the generation of a theory of state by Hobbes and Rousseau, this paper looks to reopen these questions as a political resource for us to re-imagine and refigure our ways of being together. Through readings of Hobbes and Rousseau, it looks at the ways in which the performance of politics creates the public, the representative and the sovereign and the ways these figures interact. It proposes an alternative role for theatre as places of affective learning and a civic ethics of playfulness, in which the auto-institution of the state as an imagined collectivity is fully assumed.

  19. Audience design through social interaction during group discussion.

    Science.gov (United States)

    Rogers, Shane L; Fay, Nicolas; Maybery, Murray

    2013-01-01

    This paper contrasts two accounts of audience design during multiparty communication: audience design as a strategic individual-level message adjustment or as a non-strategic interaction-level message adjustment. Using a non-interactive communication task, Experiment 1 showed that people distinguish between messages designed for oneself and messages designed for another person; consistent with strategic message design, messages designed for another person/s were longer (number of words) than those designed for oneself. However, audience size did not affect message length (messages designed for different sized audiences were similar in length). Using an interactive communication task Experiment 2 showed that as group size increased so too did communicative effort (number of words exchanged between interlocutors). Consistent with a non-strategic account, as group members were added more social interaction was necessary to coordinate the group's collective situation model. Experiment 3 validates and extends the production measures used in Experiment 1 and 2 using a comprehension task. Taken together, our results indicate that audience design arises as a non-strategic outcome of social interaction during group discussion.

  20. Development of fast wireless detection system for fixed offshore platform

    Science.gov (United States)

    Li, Zhigang; Yu, Yan; Jiao, Dong; Wang, Jie; Li, Zhirui; Ou, Jinping

    2011-04-01

    -performance computation unit, wireless transceiver unit, mobile power unit and embedded data analysis software, can totally control multi-wireless collection nodes, receive and analyze data, parameter identification. Data is transmitted at the 2.4GHz wireless communication channel, every sensing data channel in charge of data transmission is in a stable frequency band, control channel responsible for the control of power parameters is in a public frequency band. The test is initially conducted for the designed system, experimental results show that the system has good application prospects and practical value with fast arrangement, high sampling rate, high resolution, capacity of low frequency detection.

  1. The Lure of Wireless Encryption

    CERN Multimedia

    Computer Security Team

    2013-01-01

    Following our article entitled “Jekyll or Hyde? Better browse securely” in the last issue of the Bulletin, some people wondered why the CERN wireless network is not encrypted…   There are many arguments why it is not. The simplest is usability: the communication and management of the corresponding access keys would be challenging given the sheer number of wireless devices the CERN network hosts. Keys would quickly become public, e.g. at conferences, and might be shared, written on whiteboards, etc. Then there are all the devices which cannot be easily configured to use encryption protocols - a fact which would create plenty of calls to the CERN Service Desk… But our main argument is that wireless encryption is DECEPTIVE. Wireless encryption is deceptive as it only protects the wireless network against unauthorised access (and the CERN network already has other means to protect against that). Wireless encryption however, does not really help you. You ...

  2. Defining cross presentation for a wider audience.

    Science.gov (United States)

    Norbury, Christopher C

    2016-06-01

    Cross presentation is the process of production of peptide-MHC Class I complexes by cells in which the antigen that is the source of peptide is not translated. The majority of recent studies have described many facets of the classical TAP-dependent cross presentation pathway, but numerous pathways for transfer of antigenic material from a donor to a recipient cell followed by subsequent MHC-I-restricted presentation have been established, including transfer of protein antigen, peptide, RNA, DNA or even peptide-MHC-I complexes. The extent to which each of these pathways generates overlapping or unique peptide repertoires is unknown, as is the contribution of each of these pathways to generation of protective CD8+ T cells during infection or anti-tumor immune responses. Copyright © 2016 Elsevier Ltd. All rights reserved.

  3. Matching theory for wireless networks

    CERN Document Server

    Han, Zhu; Saad, Walid

    2017-01-01

    This book provides the fundamental knowledge of the classical matching theory problems. It builds up the bridge between the matching theory and the 5G wireless communication resource allocation problems. The potentials and challenges of implementing the semi-distributive matching theory framework into the wireless resource allocations are analyzed both theoretically and through implementation examples. Academics, researchers, engineers, and so on, who are interested in efficient distributive wireless resource allocation solutions, will find this book to be an exceptional resource. .

  4. Visual Peoplemeter: A Vision-based Television Audience Measurement System

    Directory of Open Access Journals (Sweden)

    SKELIN, A. K.

    2014-11-01

    Full Text Available Visual peoplemeter is a vision-based measurement system that objectively evaluates the attentive behavior for TV audience rating, thus offering solution to some of drawbacks of current manual logging peoplemeters. In this paper, some limitations of current audience measurement system are reviewed and a novel vision-based system aiming at passive metering of viewers is prototyped. The system uses camera mounted on a television as a sensing modality and applies advanced computer vision algorithms to detect and track a person, and to recognize attentional states. Feasibility of the system is evaluated on a secondary dataset. The results show that the proposed system can analyze viewer's attentive behavior, therefore enabling passive estimates of relevant audience measurement categories.

  5. An Assessment of Emerging Wireless Broadband Technologies

    National Research Council Canada - National Science Library

    Fountanas, Leonidas

    2001-01-01

    ... technologies in providing broadband services today, emerging wireless broadband technologies are expected to significantly increase their market share over the next years, Deploying a wireless network...

  6. AIDS education for a low literate audience in Zambia.

    Science.gov (United States)

    Msimuko, A K

    1988-04-01

    A workshop funded by the USA Program for Appropriate Technology in Health (PATH) was an effort by Zambia toward prevention and control of AIDS. The lack of educational materials about AIDS for a low-literate audience was the major problem addressed by the workshop. Other problems include the lack of collaborative effort in the development of materials on AIDS, and the lack of skills needed in the development of such materials in Zambia. 1 of the objectives of the workshop was to launch the Planned Parenthood Association of Zambia's (PPAZ) materials development project. The scope of this project includes the production of educational materials on AIDS for low-literate audiences and a counseling handbook for family planning workers. Print materials should be simply written, using words, idioms, and graphics that are familiar to the target audience. Other workshop objectives included the establishment of collaborative relationships between organizations involved in existing AIDS educational activities in Zambia, and the development of practical skills needed to produce print materials. Education was identified as the most important strategy for the prevention and control of AIDS, and PPAZ should be the executing agency of the print materials project. Audience research, using focus group techniques, focus group discussions, behavioral messages, and pretesting of messages, should be the most effective means of reaching targeted audiences. PPAZ is contracted by PATH to begin development of educational materials, and 2 committees have formed to implement the project and to establish interagency collaboration. Audience research was begun between January and March of 1988, focusing on people's beliefs, practices, and ideas about AIDS. The final phase of the project will be the printing, distribution, and use of the AIDS materials and the training of family planning field workers in the proper use of these materials.

  7. Wireless Sensor Portal Technology Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Recognizing the needs and challenges facing NASA Earth Science for data input, manipulation and distribution, Mobitrum is proposing a ? Wireless Sensor Portal...

  8. Adaptive Wireless Transceiver, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — Wireless technologies are an increasingly attractive means for spatial data, input, manipulation, and distribution. Mobitrum is proposing an innovative Adaptive...

  9. Smart Home Wireless Sensor Nodes

    DEFF Research Database (Denmark)

    Lynggaard, Per

    Smart homes are further development of intelligent buildings and home automation, where context awareness and autonomous behaviour are added. They are based on a combination of the Internet and emerging technologies like wireless sensor nodes. These wireless sensor nodes are challenging because....... This paper introduces an approach that considerably lowers the wireless sensor node power consumption and the amount of transmitted sensor events. It uses smart objects that include artificial intelligence to efficiently process the sensor event on location and thereby saves the costly wireless...

  10. Some Challenges in Wireless Security

    National Research Council Canada - National Science Library

    Banerjee, Suman

    2007-01-01

    Wireless communication technologies provide users with significant flexibility and portability and hence is being widely adopted as a preferred mode of communication in many military and civilian applications...

  11. Smart Home Wireless Sensor Nodes

    DEFF Research Database (Denmark)

    Lynggaard, Per

    . This paper introduces an approach that considerably lowers the wireless sensor node power consumption and the amount of transmitted sensor events. It uses smart objects that include artificial intelligence to efficiently process the sensor event on location and thereby saves the costly wireless......Smart homes are further development of intelligent buildings and home automation, where context awareness and autonomous behaviour are added. They are based on a combination of the Internet and emerging technologies like wireless sensor nodes. These wireless sensor nodes are challenging because...

  12. Cognitive wireless networks

    CERN Document Server

    Feng, Zhiyong; Zhang, Ping

    2015-01-01

    This brief examines the current research in cognitive wireless networks (CWNs). Along with a review of challenges in CWNs, this brief presents novel theoretical studies and architecture models for CWNs, advances in the cognitive information awareness and delivery, and intelligent resource management technologies. The brief presents the motivations and concepts of CWNs, including theoretical studies of temporal and geographic distribution entropy as well as cognitive information metrics. A new architecture model of CWNs is proposed with theoretical, functional and deployment architectures suppo

  13. Using narratives and storytelling to communicate science with nonexpert audiences

    Science.gov (United States)

    Dahlstrom, Michael F.

    2014-01-01

    Although storytelling often has negative connotations within science, narrative formats of communication should not be disregarded when communicating science to nonexpert audiences. Narratives offer increased comprehension, interest, and engagement. Nonexperts get most of their science information from mass media content, which is itself already biased toward narrative formats. Narratives are also intrinsically persuasive, which offers science communicators tactics for persuading otherwise resistant audiences, although such use also raises ethical considerations. Future intersections of narrative research with ongoing discussions in science communication are introduced. PMID:25225368

  14. Mediated co-construction of museums and audiences on Facebook

    DEFF Research Database (Denmark)

    Gronemann, Sigurd Trolle; Kristiansen, Erik; Drotner, Kirsten

    2015-01-01

    This article asks how we should research museum communication with audiences through social media. We argue that museums and audiences co-construct one another on social media, and we explore how particular modes of communication and discursive genres serve to generate mutual online positionings....... Based on in-depth analyses over three months’ Facebook communication at nine Danish museums and applying theories and methods from discourse analysis, we offer an analytical model of social media communication; and we examine how processes of co-construction are established, upheld, modified...

  15. Using Social Media Sentiment Analysis to Understand Audiences

    DEFF Research Database (Denmark)

    McGuire, Mark; Kampf, Constance Elizabeth

    2015-01-01

    projects, technical communicators can listen to their external users and identify areas of importance with greater accuracy. While other methods of sentiment analysis look for a solution that leads to artificial intelligence in the program, this paper identifies the present needs of a human interaction......Social media communication is changing the opportunities for technical communicators to really understand audiences when these audiences are active about issues on social media platforms. Through applying ad-hoc corpus building processes to create word lists relevant to specific organizational...

  16. Organ donation on Web 2.0: content and audience analysis of organ donation videos on YouTube.

    Science.gov (United States)

    Tian, Yan

    2010-04-01

    This study examines the content of and audience response to organ donation videos on YouTube, a Web 2.0 platform, with framing theory. Positive frames were identified in both video content and audience comments. Analysis revealed a reciprocity relationship between media frames and audience frames. Videos covered content categories such as kidney, liver, organ donation registration process, and youth. Videos were favorably rated. No significant differences were found between videos produced by organizations and individuals in the United States and those produced in other countries. The findings provide insight into how new communication technologies are shaping health communication in ways that differ from traditional media. The implications of Web 2.0, characterized by user-generated content and interactivity, for health communication and health campaign practice are discussed.

  17. A preliminary examination of audience-related communications issues for the Hanford Environmental Dose Reconstruction Project

    Energy Technology Data Exchange (ETDEWEB)

    Holmes, C.W.

    1991-04-01

    The Hanford Environmental Dose Reconstruction (HEDR) Project will estimate radiation doses people may have received from exposure to radioactive materials released during past operations at the US Department of Energy's (DOE) Hanford Site near Richland, Washington. The HEDR Project was initiated in response to public concerns about possible health impacts from past releases of radioactive materials from Hanford. The TSP recognized early in the project that special mechanisms would be required to effectively communicate to the many different concerned audiences. Accordingly, the TSP directed PNL to examine methods for communicating causes and effects of uncertainties in the dose estimates. After considering the directive and discussing it with the Communications Subcommittee of the TSP, PNL undertook a broad investigation of communications methods to consider for inclusion in the TSP's current communications program. As part of this investigation, a literature review was conducted regarding risk communications. A key finding was that, in order to successfully communicate risk-related information, a thorough understanding of the knowledge level, concerns and information needs of the intended recipients (i.e., the audience) is necessary. Hence, a preliminary audience analysis was conducted as part of the present research. This report summarizes the results of this analysis. 1 ref., 9 tabs.

  18. From early wireless to Everest.

    Science.gov (United States)

    Allen, A

    1998-01-01

    Medical information has been transmitted using wireless technologies for almost 80 years. A "wired wireless" electronic stethoscope was developed by the U.S. Army Signal Corps in the early 1920's, for potential use in ship-to-shore transmission of cardiac sounds. [Winters SR. Diagnosis by wireless. Scientific American June 11, 1921, p. 465] Today, wireless is used in a wide range of medical applications and at sites from transoceanic air flights to offshore oil platforms to Mt. Everest. 'Wireless LANs' are often used in medical environments. Typically, nurses and physicians in a hospital or clinic use hand-held "wireless thin client" pen computers that exchange patient information and images with the hospital server. Numerous companies, such as Fujitsu (article below) and Cruise Technologies (www.cruisetech.com) manufacture handheld pen-entry computers. One company, LXE, integrates radio-frequency (RF) enhanced hand-held computers specifically designed for production use within a wireless LAN (www.lxe.com). Other companies (Proxim, Symbol, and others) supply the wireless RF LAN infrastructure for the enterprise. Unfortunately, there have been problems with widespread deployment of wireless LANs. Perhaps the biggest impediment has been the lack of standards. Although an international standard (IEEE 802.11) was adopted in 1997, most wireless LAN products still are not compatible with the equipment of competing companies. A problem with the current standard for LAN adapters is that throughput is limited to 3 Mbps--compared to at least 10 Mbps, and often 100 Mbps, in a hard-wired Ethernet LAN. An II Mbps standard is due out in the next year or so, but it will be at least 2 years before standards-compliant products are available. This story profiles some of the ways that wireless is being used to overcome gaps in terrestrial and within-enterprise communication.

  19. Performance analysis of wireless sensor networks in geophysical sensing applications

    Science.gov (United States)

    Uligere Narasimhamurthy, Adithya

    Performance is an important criteria to consider before switching from a wired network to a wireless sensing network. Performance is especially important in geophysical sensing where the quality of the sensing system is measured by the precision of the acquired signal. Can a wireless sensing network maintain the same reliability and quality metrics that a wired system provides? Our work focuses on evaluating the wireless GeoMote sensor motes that were developed by previous computer science graduate students at Mines. Specifically, we conducted a set of experiments, namely WalkAway and Linear Array experiments, to characterize the performance of the wireless motes. The motes were also equipped with the Sticking Heartbeat Aperture Resynchronization Protocol (SHARP), a time synchronization protocol developed by a previous computer science graduate student at Mines. This protocol should automatically synchronize the mote's internal clocks and reduce time synchronization errors. We also collected passive data to evaluate the response of GeoMotes to various frequency components associated with the seismic waves. With the data collected from these experiments, we evaluated the performance of the SHARP protocol and compared the performance of our GeoMote wireless system against the industry standard wired seismograph system (Geometric-Geode). Using arrival time analysis and seismic velocity calculations, we set out to answer the following question. Can our wireless sensing system (GeoMotes) perform similarly to a traditional wired system in a realistic scenario?

  20. Audience segmentation to promote lifestyle for cancer prevention in the Korean community.

    Science.gov (United States)

    Jo, Heui-Sug; Jung, Su-Mi

    2011-01-01

    This study was designed to segment the audience group of '10 lifestyle for cancer prevention' based on demographic characteristics and the level of knowledge about each guideline for cancer prevention among the community in South Korea. Participants were chosen through stratified random sampling according to the age and gender distribution of Gangwon province in South Korea. A telephone survey was conducted from 6 to 15 calls among 2,025 persons on October 2008. A total of 1,687 persons completed the survey (response rate: 83.3%). Survey items were composed of socio-demographic characteristics such as age, gender, income, education, and residence area and the knowledge level of '10 guidelines for cancer prevention', developed by 'Korean Ministry of Health and Welfare' and covering smoking cessation, appropriate drinking, condom use, and regular physical activity and so on. We selected the priority needed to promote awareness and segmented the audience group based on the demographic characteristics, homogeneous with respect to the knowledge level using Answer Tree 3.0 with CHAID as a data mining algorithm. The results of analysis showed that each guideline of ' 10 lifestyle for cancer prevention' had its own segmented subgroup characterized by each demographic. Especially, residence area, city or county, and ages were the first split on the perceived level of knowledge and these findings suggested that segmentation of audiences for targeting is needed to deliver more effective education of patients and community people. In developing the strategy for effective education, the method of social marketing using the decision tree analysis could be a useful and appropriate tool. The study findings demonstrate the potential value of using more sophisticated strategies of designing and providing health information based on audience segmentation.

  1. Stage versus pulpit and the shifting / dwindling theatre audiences in ...

    African Journals Online (AJOL)

    In theatrical parlance, a “stage” is the spatial context on which a performance takes place before an audience at a public theatre. However, theatre is faced with a perennial problem posed by the pulpit, itself seen as a performance area where priests stand to gesticulate using facial expressions to move the congregation ...

  2. An expressive virtual audience with flexible behavioral styles

    NARCIS (Netherlands)

    Kang, N.; Brinkman, W.P.; Riemsdijk, M.B. van; Neerincx, M.A.

    2013-01-01

    Currently, expressive virtual humans are used in psychological research, training, and psychotherapy. However, the behavior of these virtual humans is usually scripted and therefore cannot be modified freely at runtime. To address this, we created a virtual audience with parameterized behavioral

  3. Best Practices in Nutrition Education for Low-Income Audiences

    Science.gov (United States)

    Baker, Susan; Auld, Garry; MacKinnon, Chloe; Ammerman, Alice; Hanula, Gail; Lohse, Barbara; Scott, Marci; Serrano, Elena; Tucker, Easter; Wardlaw, Mary Kay

    2014-01-01

    The Food and Nutrition Service (FNS) identified a need for a comprehensive set of best practices in nutrition education for low-income audiences for the Supplemental Nutrition Assistance Program (SNAP) educational projects, including SNAP-Ed. A comprehensive list of best practices would promote consistency and efficacy in program planning,…

  4. Tools of Audience Analysis in Contemporary Political Campaigns.

    Science.gov (United States)

    Friedenberg, Robert V.

    This paper examines two basic tools of audience analysis as they are used in contemporary political campaingning: public opinion polls and interpretations of voter statistics. The raw data used in the statistical analyses reported in this investigation come from national polls and voter statistics provided to Republican candidates running in local…

  5. Allies and Competitors as Enscripted Audiences in Scientific Writing.

    Science.gov (United States)

    Perry, Susan

    A set of much examined scientific papers which specifically portray a controversial topic and also manifest ally-peer and competitor-peer enscripted audiences are those written by James Watson and Francis Crick concerning their discovery of the structure of deoxyribose nucleic acid (DNA). The theoretical perspective of an ally-peer and…

  6. Narrative Writing in Digital Formats: Interpreting the Impact of Audience

    Directory of Open Access Journals (Sweden)

    Lawrence Joshua Fahey

    2015-12-01

    Full Text Available Digital writing has enabled students to write for a variety of authentic audiences, both in and out of the classroom. As they consider audience, students shoulder a cognitive burden that they must juggle in addition to the task of composition. At the same time, writing provides students with opportunities to craft and express their identities. The ways that identity formation and cognitive load intersect may be particularly complex in digital, online writing environments, as students gain the ability to share and receive feedback from global and local audiences. In this counterbalanced experimental study, 86 seventh- and eighth-grade students responded to two narrative prompts. One prompt was written for the teacher and the other was written for the teacher and peers in an online forum. We examined student writing fluency, mechanical errors, academic word use, and setting. Students were found to be more likely to set narratives in private settings when writing for an audience that included peers. We discuss this finding from cognitive and sociocultural perspectives and how it might inform networked communication research.

  7. Communicating Ocean Sciences to Informal Audiences (COSIA): Interim Evaluation Report

    Science.gov (United States)

    St. John, Mark; Phillips, Michelle; Smith, Anita; Castori, Pam

    2009-01-01

    Communicating Ocean Sciences to Informal Audiences (COSIA) is a National Science Foundation (NSF)-funded project consisting of seven long-term three-way partnerships between the Lawrence Hall of Science (LHS) and an informal science education institution (ISEI) partnered with an institution of higher education (IHE). Together, educators from the…

  8. Portrait of a Contemporary Drive-In Movie Theater Audience.

    Science.gov (United States)

    Austin, Bruce A.

    Personal interviews were conducted with drive-in theatre patrons in an attempt to paint an empirical portrait of a contemporary drive-in movie theatre audience. A total of 607 patrons of one Rochester, New York, drive-in were interviewed by trained college undergraduates using a prepared 33-item questionnaire consisting of open- and close-ended…

  9. Researching the Film Audience: Purposes, Procedures, and Problems.

    Science.gov (United States)

    Austin, Bruce A.

    Film audience research complements institutional research, verifying scholarship on the meanings films have to viewers and providing broad-based explanations of film images. Most important, such research focuses on the decision and motivation processes people use before they set foot in the movie theater, thereby helping to construct a context…

  10. Audience awareness and use of Mobile Authentication Service ...

    African Journals Online (AJOL)

    This study examines the level of audience awareness of, and determining the effectiveness of the National Agency for Food and Drug Administration and Control (NAFDAC)'s use of, the Mobile Authentication Service (MAS) in identifying fake and substandard drugs in Nigeria. The study, anchored on the Uses and ...

  11. Audience Perception of Nollywood Films | Agba | Lwati: A Journal of ...

    African Journals Online (AJOL)

    As the findings of the article have revealed, in spite of Nollywood's perceived negative themes, poor plotting and poor sound quality, audience members of Nollywood do generally have positive perception of Nollywood. However, critical views about Nollywood are welcome since not everybody accepts Nollywood.

  12. 1 Aquatic Theatre: Women as Performing Audience Sunday ...

    African Journals Online (AJOL)

    USER

    improvised lakes like the Flavian Amphitheatre that was later called the colosseum in Rome which was improvised and the Stagnum. Augusti that was constructed. Sea battles were recreated in these water stages for an enthusiastic Roman audience. It is also in record that a great Roman poet, Claudius, re- enacted a battle ...

  13. Whose Relevance? Interpretation of Hybrid Texts by a Multiple Audience.

    Science.gov (United States)

    Ku-Mesu, Katalin Egri

    1997-01-01

    A study applied Relevance Theory to interpretation of texts written in Ghanaian English, particularly those intended for reading by multiple audiences. The nature of such "hybrid" texts is examined and key principles of Relevance Theory are outlined. Relevance is defined in terms of contextual effect and processing effort. Contextual…

  14. Audience Perception of Television Animated Cartoons as Tool for ...

    African Journals Online (AJOL)

    This study investigated audience perception of television animated cartoons as tool for political communication. The specific objectives of the study were: to find out the frequency of exposure to television animated cartoons between males and females; to find out the frequency of exposure to television animated cartoons ...

  15. Collaboration potentials in micro and macro politics of audience creativity

    DEFF Research Database (Denmark)

    Brites, Maria José; Chimirri, Niklas Alexander; Amaral, Inês

    2017-01-01

    In our stakeholder consultation following up on trends concerning the micro and macropolitics of audience action, we explore the potential impact of audiences’ micro-participation and connection to macro-actions. We address this issue taking into consideration intrinsic continuities and discontin...

  16. Accounting for youth audiences' resistances to HIV and AIDS ...

    African Journals Online (AJOL)

    Blessing Makwambeni

    2018-03-06

    Mar 6, 2018 ... Very few studies have sought to investigate and understand why a substantial number of targeted audiences resist the preferred readings that are encoded into E-E interventions on HIV and AIDS. Using cultural studies as its conceptual framework and reception analysis as its methodology, this study.

  17. The Effects of Target Audience on Social Tagging

    Science.gov (United States)

    Alsarhan, Hesham

    2013-01-01

    Online social bookmarking systems allow users to assign tags (i.e., keywords) to represent the content of resources. Research on the effects of target audience on social tagging suggests that taggers select different tags for themselves, their community (e.g., family, friends, colleagues), and the general public (Panke & Gaiser, 2009; Pu &…

  18. Introduction : The Places and Spaces of News Audiences

    NARCIS (Netherlands)

    Peters, Chris

    2014-01-01

    This special issue on the places and spaces of news audiences presents an initial attempt to do this; to see how the everyday digital geographies of contemporary media, communication, and information flows intersect with the everywhere “lived” geographies of individuals, and how this impacts

  19. Characterizing and reaching high-risk drinkers using audience segmentation.

    Science.gov (United States)

    Moss, Howard B; Kirby, Susan D; Donodeo, Fred

    2009-08-01

    Market or audience segmentation is widely used in social marketing efforts to help planners identify segments of a population to target for tailored program interventions. Market-based segments are typically defined by behaviors, attitudes, knowledge, opinions, or lifestyles. They are more helpful to health communication and marketing planning than epidemiologically defined groups because market-based segments are similar in respect to how they behave or might react to marketing and communication efforts. However, market segmentation has rarely been used in alcohol research. As an illustration of its utility, we employed commercial data that describes the sociodemographic characteristics of high-risk drinkers as an audience segment, including where they tend to live, lifestyles, interests, consumer behaviors, alcohol consumption behaviors, other health-related behaviors, and cultural values. Such information can be extremely valuable in targeting and planning public health campaigns, targeted mailings, prevention interventions, and research efforts. We described the results of a segmentation analysis of those individuals who self-reported to consume 5 or more drinks per drinking episode at least twice in the last 30 days. The study used the proprietary PRIZM (Claritas, Inc., San Diego, CA) audience segmentation database merged with the Center for Disease Control and Prevention's (CDC) Behavioral Risk Factor Surveillance System (BRFSS) database. The top 10 of the 66 PRIZM audience segments for this risky drinking pattern are described. For five of these segments we provided additional in-depth details about consumer behavior and the estimates of the market areas where these risky drinkers resided. The top 10 audience segments (PRIZM clusters) most likely to engage in high-risk drinking are described. The cluster with the highest concentration of binge-drinking behavior is referred to as the "Cyber Millenials." This cluster is characterized as "the nation's tech

  20. Characterizing and Reaching High-Risk Drinkers Using Audience Segmentation

    Science.gov (United States)

    Moss, Howard B.; Kirby, Susan D.; Donodeo, Fred

    2010-01-01

    Background Market or audience segmentation is widely used in social marketing efforts to help planners identify segments of a population to target for tailored program interventions. Market-based segments are typically defined by behaviors, attitudes, knowledge, opinions, or lifestyles. They are more helpful to health communication and marketing planning than epidemiologically-defined groups because market-based segments are similar in respect to how they behave or might react to marketing and communication efforts. However, market segmentation has rarely been used in alcohol research. As an illustration of its utility, we employed commercial data that describes the sociodemographic characteristics of high-risk drinkers as an audience segment; where they tend to live, lifestyles, interests, consumer behaviors, alcohol consumption behaviors, other health-related behaviors, and cultural values. Such information can be extremely valuable in targeting and planning public health campaigns, targeted mailings, prevention interventions and research efforts. Methods We describe the results of a segmentation analysis of those individuals who self-report consuming five or more drinks per drinking episode at least twice in the last 30-days. The study used the proprietary PRIZM™ audience segmentation database merged with Center for Disease Control and Prevention's (CDC) Behavioral Risk Factor Surveillance System (BRFSS) database. The top ten of the 66 PRIZM™ audience segments for this risky drinking pattern are described. For five of these segments we provide additional in-depth details about consumer behavior and the estimates of the market areas where these risky drinkers reside. Results The top ten audience segments (PRIZM clusters) most likely to engage in high-risk drinking are described. The cluster with the highest concentration of binge drinking behavior is referred to as the “Cyber Millenials.” This cluster is characterized as “the nation's tech-savvy singles

  1. Green Wireless Power Transfer Networks

    NARCIS (Netherlands)

    Liu, Q.; Golinnski, M.; Pawelczak, P.; Warnier, M.

    2016-01-01

    wireless power transfer network (WPTN) aims to support devices with cable-less energy on-demand. Unfortunately, wireless power transfer itself-especially through radio frequency radiation rectification-is fairly inefficient due to decaying power with distance, antenna polarization, etc.

  2. Wireless Networks: a brief introduction

    Indian Academy of Sciences (India)

    First page Back Continue Last page Overview Graphics. Wireless Networks: a brief introduction. Wireless communication: What? Why? How many types? What is cell? Is it different from fixed landline structure? 1G systems: FDMA/FDD and Analog FM [voice comm]. (Introduced in 1983 in Chicago by AMPS). 2G systems: 3 ...

  3. An Analysis Of Wireless Security

    OpenAIRE

    Salendra Prasad

    2017-01-01

    The WLAN security includes Wired Equivalent Primary WEP and WI-FI protected Access WPA. Today WEP is regarded as very poor security standard. WEP was regarded as very old security standard and has many security issues which users need to be addressed. In this Paper we will discuss Wireless Security and ways to improve on wireless security.

  4. Wireless Headset Communication System

    Science.gov (United States)

    Lau, Wilfred K.; Swanson, Richard; Christensen, Kurt K.

    1995-01-01

    System combines features of pagers, walkie-talkies, and cordless telephones. Wireless headset communication system uses digital modulation on spread spectrum to avoid interference among units. Consists of base station, 4 radio/antenna modules, and as many as 16 remote units with headsets. Base station serves as network controller, audio-mixing network, and interface to such outside services as computers, telephone networks, and other base stations. Developed for use at Kennedy Space Center, system also useful in industrial maintenance, emergency operations, construction, and airport operations. Also, digital capabilities exploited; by adding bar-code readers for use in taking inventories.

  5. Investigating wireless power transfer

    Science.gov (United States)

    St John, Stuart A.

    2017-09-01

    Understanding Physics is a great end in itself, but is also crucial to keep pace with developments in modern technology. Wireless power transfer, known to many only as a means to charge electric toothbrushes, will soon be commonplace in charging phones, electric cars and implanted medical devices. This article outlines how to produce and use a simple set of equipment to both demonstrate and investigate this phenomenon. It presents some initial findings and aims to encourage Physics educators and their students to conduct further research, pushing the bounds of their understanding.

  6. Dynamic wireless sensor networks

    CERN Document Server

    Oteafy, Sharief M A

    2014-01-01

    In this title, the authors leap into a novel paradigm of scalability and cost-effectiveness, on the basis of resource reuse. In a world with much abundance of wirelessly accessible devices, WSN deployments should capitalize on the resources already available in the region of deployment, and only augment it with the components required to meet new application requirements. However, if the required resources already exist in that region, WSN deployment converges to an assignment and scheduling scheme to accommodate for the new application given the existing resources. Such resources are polled

  7. Wired or Wireless Internet?

    DEFF Research Database (Denmark)

    Gimpel, Gregory

    2010-01-01

    This paper finds that network externalities play a minimal role in the choice of internet access technology. Potential adopters of mobile laptop internet view broadband technology as a black box, the technological details of which donot matter. The study uses qualitative techniques to explore how...... the speed of technological obsolescence, market share dominance, and the black boxing of technology influence consumer intention to adopt WiMax and 3G wireless internet for their laptop computers. The results, implications for industry, and areas for further research are discussed....

  8. Wireless installation standard

    International Nuclear Information System (INIS)

    Lim, Hwang Bin

    2007-12-01

    This is divided six parts which are radio regulation law on securing of radio resource, use of radio resource, protection of radio resource, radio regulation enforcement ordinance with securing, distribution and assignment of radio regulation, radio regulation enforcement regulation on utility of radio resource and technical qualification examination, a wireless installation regulation of technique standard and safety facility standard, radio regulation such as certification regulation of information communicative machines and regulation of radio station on compliance of signal security, radio equipment in radio station, standard frequency station and emergency communication.

  9. The Importance of Audience and Agency for Representation: A Case Study of an Urban Youth Media Community

    Science.gov (United States)

    Charmaraman, Linda

    2010-01-01

    Purpose Urban youths' agency to represent their realities through media has been largely unexplored in the youth development literature. In this qualitative case study of an after-school youth media program in the Bay Area, expressions of youth agency and the role of audiences are explored during the process of producing videos for public consumption. Methodology As participant observer of 14 ethnically diverse youth participants aged between 15 and 18 years over 18 months, I documented (a) the kind of agencies participants engaged in and (b) the impact of live and imagined future audiences on youths' creative processes. Analyses of field notes, semi-structured interviews, and media projects were conducted using thematic analysis to inductively generate emerging categories. Findings Themes included an agentive sense of self-efficacy, commitment, and responsibility, as well as perceived contributions to local audiences and an emerging collective identity. The youth demonstrated their increased sense of a social or civic duty to realistically represent youth of color to familiar and unfamiliar audiences. Implications This case study demonstrated how one youth media organization fostered agency through youth authorship, production, distribution, and local community dialogue. By documenting the impact of audiences from conception to public reception, this study provides valuable insight into the agentive process of publicly “performing” a commitment to complete a social change video project. Contribution This chapter underscores the value of performance within youth development programs and the critical component of audiences as one form of authentic assessment in order to foster individual and collective agency. PMID:20671812

  10. Shared reality in intergroup communication: Increasing the epistemic authority of an out-group audience.

    Science.gov (United States)

    Echterhoff, Gerald; Kopietz, René; Higgins, E Tory

    2017-06-01

    Communicators typically tune messages to their audience's attitude. Such audience tuning biases communicators' memory for the topic toward the audience's attitude to the extent that they create a shared reality with the audience. To investigate shared reality in intergroup communication, we first established that a reduced memory bias after tuning messages to an out-group (vs. in-group) audience is a subtle index of communicators' denial of shared reality to that out-group audience (Experiments 1a and 1b). We then examined whether the audience-tuning memory bias might emerge when the out-group audience's epistemic authority is enhanced, either by increasing epistemic expertise concerning the communication topic or by creating epistemic consensus among members of a multiperson out-group audience. In Experiment 2, when Germans communicated to a Turkish audience with an attitude about a Turkish (vs. German) target, the audience-tuning memory bias appeared. In Experiment 3, when the audience of German communicators consisted of 3 Turks who all held the same attitude toward the target, the memory bias again appeared. The association between message valence and memory valence was consistently higher when the audience's epistemic authority was high (vs. low). An integrative analysis across all studies also suggested that the memory bias increases with increasing strength of epistemic inputs (epistemic expertise, epistemic consensus, and audience-tuned message production). The findings suggest novel ways of overcoming intergroup biases in intergroup relations. (PsycINFO Database Record (c) 2017 APA, all rights reserved).

  11. Wireless network security theories and applications

    CERN Document Server

    Chen, Lei; Zhang, Zihong

    2013-01-01

    Wireless Network Security Theories and Applications discusses the relevant security technologies, vulnerabilities, and potential threats, and introduces the corresponding security standards and protocols, as well as provides solutions to security concerns. Authors of each chapter in this book, mostly top researchers in relevant research fields in the U.S. and China, presented their research findings and results about the security of the following types of wireless networks: Wireless Cellular Networks, Wireless Local Area Networks (WLANs), Wireless Metropolitan Area Networks (WMANs), Bluetooth

  12. Household wireless electroencephalogram hat

    Science.gov (United States)

    Szu, Harold; Hsu, Charles; Moon, Gyu; Yamakawa, Takeshi; Tran, Binh

    2012-06-01

    We applied Compressive Sensing to design an affordable, convenient Brain Machine Interface (BMI) measuring the high spatial density, and real-time process of Electroencephalogram (EEG) brainwaves by a Smartphone. It is useful for therapeutic and mental health monitoring, learning disability biofeedback, handicap interfaces, and war gaming. Its spec is adequate for a biomedical laboratory, without the cables hanging over the head and tethered to a fixed computer terminal. Our improved the intrinsic signal to noise ratio (SNR) by using the non-uniform placement of the measuring electrodes to create the proximity of measurement to the source effect. We computing a spatiotemporal average the larger magnitude of EEG data centers in 0.3 second taking on tethered laboratory data, using fuzzy logic, and computing the inside brainwave sources, by Independent Component Analysis (ICA). Consequently, we can overlay them together by non-uniform electrode distribution enhancing the signal noise ratio and therefore the degree of sparseness by threshold. We overcame the conflicting requirements between a high spatial electrode density and precise temporal resolution (beyond Event Related Potential (ERP) P300 brainwave at 0.3 sec), and Smartphone wireless bottleneck of spatiotemporal throughput rate. Our main contribution in this paper is the quality and the speed of iterative compressed image recovery algorithm based on a Block Sparse Code (Baranuick et al, IEEE/IT 2008). As a result, we achieved real-time wireless dynamic measurement of EEG brainwaves, matching well with traditionally tethered high density EEG.

  13. Biomonitoring with Wireless Communications

    Energy Technology Data Exchange (ETDEWEB)

    Budinger, Thomas F.

    2003-03-01

    This review is divided into three sections: technologies for monitoring physiological parameters; biosensors for chemical assays and wireless communications technologies including image transmissions. Applications range from monitoring high risk patients for heart, respiratory activity and falls to sensing levels of physical activity in military, rescue, and sports personnel. The range of measurements include, heart rate, pulse wave form, respiratory rate, blood oxygen, tissue pCO2, exhaled carbon dioxide and physical activity. Other feasible measurements will employ miniature chemical laboratories on silicon or plastic chips. The measurements can be extended to clinical chemical assays ranging from common blood assays to protein or specialized protein measurements (e.g., troponin, creatine, and cytokines such as TNF and IL6). Though the feasibility of using wireless technology to communicate vital signs has been demonstrated 32 years ago (1) it has been only recently that practical and portable devices and communications net works have become generally available for inexpensive deployment of comfortable and affordable devices and systems.

  14. The Audiences in View of the Changes in Cyber Journalism

    Directory of Open Access Journals (Sweden)

    Dr. José Ignacio Armentia Vizuete

    2006-01-01

    Full Text Available Newspaper in Internet have suffered in the last years a series of changes, in the way towards the acquisition of some own characteristics differentiated with regard to the printed dailys. This evolution also has had his reflex in the audiences. Today Internet isn’t an elitist product and is available for the majority of the population. Nevertheless, the way of measuring the above mentioned audiences constitutes one of the hanging questions for the cybermedia, unlike what it happens in other three big informative supports: press, radio and television, where measurements of reference for each one of the supports exist. As it is exposed in this article, we have a great disparity between the data and methods of measurement of organisms and companies like EGM, OJD, Alexa and others, on the Internet. This text is based on a research about the evolution of the cyberjournalism in Spain financed by the University of the Basque Country.

  15. Theater Activities for Jung Opera Audience: An Educational Urgency

    OpenAIRE

    Elita Maule

    2012-01-01

    Problem statement: Numerous studies have led researchers to conclude that the socio-demographic profile of the public of classical music appears to be quite generalizable. However, the survey of the opera public, a classical music subgenre that is often associated with theater performances, appears to be much more difficult to quantify and has not yet been the subject of specific investigations (1). The drastic decrease in audience attendance, especially among young people, has led to a radic...

  16. UNDERSTANDING OUR AUDIENCE: MESSAGES FROM CONCEPT TO COMPLETION

    OpenAIRE

    Tharwat EL-Sakran

    2018-01-01

    The United Arab Emirates (UAE) is a business hub for a great number of multinational and international companies that conduct daily communication activities in English, which has made efficient and audience sensitive written communication an essential requirement in today’s workplace. With computer-mediated communication (CMC) taking over face-to-face communication, this has created an essential need for students to learn efficient and appropriate communication styles pertinent to communicati...

  17. Structural processing for wireless communications

    CERN Document Server

    Lu, Jianhua; Ge, Ning

    2015-01-01

    This brief presents an alternative viewpoint on processing technology for wireless communications based on recent research advances. As a lever in emerging processing technology, the structure perspective addresses the complexity and uncertainty issues found in current wireless applications. Likewise, this brief aims at providing a new prospective to the development of communication technology and information science, while stimulating new theories and technologies for wireless systems with ever-increasing complexity. Readers of this brief may range from graduate students to researchers in related fields.

  18. Radio Relays Improve Wireless Products

    Science.gov (United States)

    2009-01-01

    Signal Hill, California-based XCOM Wireless Inc. developed radio frequency micromachine (RF MEMS) relays with a Phase II Small Business Innovation Research (SBIR) contract through NASA?s Jet Propulsion Laboratory. In order to improve satellite communication systems, XCOM produced wireless RF MEMS relays and tunable capacitors that use metal-to-metal contact and have the potential to outperform most semiconductor technologies while using less power. These relays are used in high-frequency test equipment and instrumentation, where increased speed can mean significant cost savings. Applications now also include mainstream wireless applications and greatly improved tactical radios.

  19. Wireless Communications in Smart Grid

    Science.gov (United States)

    Bojkovic, Zoran; Bakmaz, Bojan

    Communication networks play a crucial role in smart grid, as the intelligence of this complex system is built based on information exchange across the power grid. Wireless communications and networking are among the most economical ways to build the essential part of the scalable communication infrastructure for smart grid. In particular, wireless networks will be deployed widely in the smart grid for automatic meter reading, remote system and customer site monitoring, as well as equipment fault diagnosing. With an increasing interest from both the academic and industrial communities, this chapter systematically investigates recent advances in wireless communication technology for the smart grid.

  20. Wireless home networking for dummies

    CERN Document Server

    Briere, Danny; Ferris, Edward

    2010-01-01

    The perennial bestseller shows you how share your files and Internet connection across a wireless network. Fully updated for Windows 7 and Mac OS X Snow Leopard, this new edition of this bestseller returns with all the latest in wireless standards and security. This fun and friendly guide shows you how to integrate your iPhone, iPod touch, smartphone, or gaming system into your home network. Veteran authors escort you through the various financial and logisitical considerations that you need to take into account before building a wireless network at home.: Covers the basics of planning, instal

  1. Microwave materials for wireless applications

    CERN Document Server

    Cruickshank, David B

    2011-01-01

    This practical resource offers you an in-depth, up-to-date understanding of the use of microwave magnetic materials for cutting-edge wireless applications. The book discusses device applications used in wireless infrastructure base stations, point-to-point radio links, and a range of more specialized microwave systems. You find detailed discussions on the attributes of each family of magnetic materials with respect to specific wireless applications. Moreover, the book addresses two of the hottest topics in the field today - insertion loss and intermodulation. This comprehensive reference also

  2. Wireless device monitoring methods, wireless device monitoring systems, and articles of manufacture

    Science.gov (United States)

    McCown, Steven H [Rigby, ID; Derr, Kurt W [Idaho Falls, ID; Rohde, Kenneth W [Idaho Falls, ID

    2012-05-08

    Wireless device monitoring methods, wireless device monitoring systems, and articles of manufacture are described. According to one embodiment, a wireless device monitoring method includes accessing device configuration information of a wireless device present at a secure area, wherein the device configuration information comprises information regarding a configuration of the wireless device, accessing stored information corresponding to the wireless device, wherein the stored information comprises information regarding the configuration of the wireless device, comparing the device configuration information with the stored information, and indicating the wireless device as one of authorized and unauthorized for presence at the secure area using the comparing.

  3. Wireless sensor networks concepts, applications, experimentation and analysis

    CERN Document Server

    Fahmy, Hossam Mahmoud Ahmad

    2016-01-01

    This book focuses on the principles of wireless sensor networks (WSNs), their applications, and their analysis tools, with meticulous attention paid to definitions and terminology. This book presents the adopted technologies and their manufacturers in detail, making WSNs tangible for the reader. In introductory computer networking books, chapter sequencing follows the bottom-up or top-down architecture of the 7-layer protocol. This book addresses subsequent steps in this process, both horizontally and vertically, thus fostering a clearer and deeper understanding through chapters that elaborate on WSN concepts and issues. With such depth, this book is intended for a wide audience; it is meant to be a helper and motivator for senior undergraduates, postgraduates, researchers, and practitioners. It lays out important concepts and WSN-relate applications; uses appropriate literature to back research and practical issues; and focuses on new trends. Senior undergraduate students can use it to familiarize themselves...

  4. Multimedia Astronomy Communication: Effectively Communicate Astronomy to the Desired Audience

    Science.gov (United States)

    Star Cartier, Kimberly Michelle; Wright, Jason

    2017-01-01

    A fundamental aspect of our jobs as scientists is communicating our work to others. In this, the field of astronomy holds the double-edged sword of ubiquitous fascination: the topic has been of interest to nearly the entire global population at some point in their lives, yet the learning curve is steep within any subfield and rife with difficult-to-synthesize details. Compounding this issue is the ever-expanding array of methods to reach people in today's Communications Era. Each communication medium has its own strengths and weaknesses, is appropriate in different situations, and requires its own specific skillset in order to maximize its functionality. Despite this, little attention is given to training astronomers in effective communication techniques, often relying on newcomers to simply pick up the ability by mimicking others and assuming that a firm grasp on the subject matter will make up for deficiencies in communication theory. This can restrict astronomers to a narrow set of communication methods, harming both the communicators and the audience who may struggle to access the information through those media.Whether writing a research paper to academic peers or giving an astronomy talk to a pubic audience, successfully communicating a scientific message requires more than just an expert grasp on the topic. A communicator must understand the makeup and prior knowledge of the desired audience, be able to break down the salient points of the topic into pieces that audience can digest, select and maximize upon a medium to deliver the message, and frame the message in a way that hooks the audience and compels further interest. In this work we synthesize the requirements of effective astronomy communication into a few key questions that every communicator needs to answer. We then discuss some of the most common media currently used to communicate astronomy, give both effective and poor examples of utilizing these media to communicate astronomy, and provide key

  5. Bring back the Audience:A Discussion of the Lack of Audience Research in the Field of Media Development

    OpenAIRE

    Scott, Martin; Dietz, Christoph

    2016-01-01

    This paper strives to highlight the significant lack of audience research in the field of media development and the consequences of this gap – both for project design and policy making – but also for broader efforts to integrate media into governance debates. Whilst this lack of evidence has been noted before, a number of recently published scoping reviews of the relevant literature now enable us to discuss, in detail, the extent and nature of this gap in our knowledge.

  6. One EPA Web: Purpose, Audiences, Top Tasks (Round 2 Sites, April 2012 – January 2013)

    Science.gov (United States)

    Examples of the top audiences and tasks identified for priority topics can help EICs identify their own audiences and tasks for new web areas, as an important part of the content transformation process.

  7. Verification of electromagnetic effects from wireless devices in operating nuclear power plants

    Directory of Open Access Journals (Sweden)

    Song-Hae Ye

    2015-10-01

    Full Text Available Wireless communication technologies, especially smartphones, have become increasingly common. Wireless technology is widely used in general industry and this trend is also expected to grow with the development of wireless technology. However, wireless technology is not currently applied in any domestic operating nuclear power plants (NPPs because of the highest priority of the safety policy. Wireless technology is required in operating NPPs, however, in order to improve the emergency responses and work efficiency of the operators and maintenance personnel during its operation. The wired telephone network in domestic NPPs can be simply connected to a wireless local area network to use wireless devices. This design change can improve the ability of the operators and personnel to respond to an emergency situation by using important equipment for a safe shutdown. IEEE 802.11 smartphones (Wi-Fi standard, Internet Protocol (IP phones, personal digital assistant (PDA for field work, notebooks used with web cameras, and remote site monitoring tablet PCs for on-site testing may be considered as wireless devices that can be used in domestic operating NPPs. Despite its advantages, wireless technology has only been used during the overhaul period in Korean NPPs due to the electromagnetic influence of sensitive equipment and cyber security problems. This paper presents the electromagnetic verification results from major sensitive equipment after using wireless devices in domestic operating NPPs. It also provides a solution for electromagnetic interference/radio frequency interference (EMI/RFI from portable and fixed wireless devices with a Wi-Fi communication environment within domestic NPPs.

  8. Verification of electromagnetic effects from wireless devices in operating nuclear power plants

    International Nuclear Information System (INIS)

    Ye, Song Hae; Kim, Young Sik; Lyou, Ho Sun; Kim, Min Suk; Lyou, Joon

    2015-01-01

    Wireless communication technologies, especially smart phones, have become increasingly common. Wireless technology is widely used in general industry and this trend is also expected to grow with the development of wireless technology. However, wireless technology is not currently applied in any domestic operating nuclear power plants (NPPs) because of the highest priority of the safety policy. Wireless technology is required in operating NPPs, however, in order to improve the emergency responses and work efficiency of the operators and maintenance personnel during its operation. The wired telephone network in domestic NPPs can be simply connected to a wireless local area network to use wireless devices. This design change can improve the ability of the operators and personnel to respond to an emergency situation by using important equipment for a safe shutdown. IEEE 802.11 smart phones (Wi-Fi standard), Internet Protocol (IP) phones, personal digital assistant (PDA) for field work, notebooks used with web cameras, and remote site monitoring tablet PCs for on-site testing may be considered as wireless devices that can be used in domestic operating NPPs. Despite its advantages, wireless technology has only been used during the overhaul period in Korean NPPs due to the electromagnetic influence of sensitive equipment and cyber security problems. This paper presents the electromagnetic verification results from major sensitive equipment after using wireless devices in domestic operating NPPs. It also provides a solution for electromagnetic interference/radio frequency interference (EMI/RFI) from portable and fixed wireless devices with a Wi-Fi communication environment within domestic NPPs

  9. Verification of electromagnetic effects from wireless devices in operating nuclear power plants

    Energy Technology Data Exchange (ETDEWEB)

    Ye, Song Hae; Kim, Young Sik; Lyou, Ho Sun; Kim, Min Suk [Korea Hydro and Nuclear Power Co. (KHNP), Central Research Institute, Daejeon (Korea, Republic of); Lyou, Joon [Dept. of Electronics Engineering, Chungnam National University, Daejeon (Korea, Republic of)

    2015-10-15

    Wireless communication technologies, especially smart phones, have become increasingly common. Wireless technology is widely used in general industry and this trend is also expected to grow with the development of wireless technology. However, wireless technology is not currently applied in any domestic operating nuclear power plants (NPPs) because of the highest priority of the safety policy. Wireless technology is required in operating NPPs, however, in order to improve the emergency responses and work efficiency of the operators and maintenance personnel during its operation. The wired telephone network in domestic NPPs can be simply connected to a wireless local area network to use wireless devices. This design change can improve the ability of the operators and personnel to respond to an emergency situation by using important equipment for a safe shutdown. IEEE 802.11 smart phones (Wi-Fi standard), Internet Protocol (IP) phones, personal digital assistant (PDA) for field work, notebooks used with web cameras, and remote site monitoring tablet PCs for on-site testing may be considered as wireless devices that can be used in domestic operating NPPs. Despite its advantages, wireless technology has only been used during the overhaul period in Korean NPPs due to the electromagnetic influence of sensitive equipment and cyber security problems. This paper presents the electromagnetic verification results from major sensitive equipment after using wireless devices in domestic operating NPPs. It also provides a solution for electromagnetic interference/radio frequency interference (EMI/RFI) from portable and fixed wireless devices with a Wi-Fi communication environment within domestic NPPs.

  10. Advanced Wireless Integrated Navy Network

    National Research Council Canada - National Science Library

    Stutzman, Warren; Habayeb, Rick

    2005-01-01

    Quarterly progress report No. I on AWINN hardware and software configurations of smart, wideband, multi-function antennas, secure configurable platform, close-in command and control for Sea Basing visualization of wireless...

  11. Introduction to wireless sensor networks

    CERN Document Server

    Forster, Anna

    2016-01-01

    Explores real-world wireless sensor network development, deployment, and applications. The book begins with an introduction to wireless sensor networks and their fundamental concepts. Hardware components, operating systems, protocols, and algorithms that make up the anatomy of a sensor node are described in chapter two. Properties of wireless communications, medium access protocols, wireless links, and link estimation protocols are described in chapter three and chapter four. Routing basics and metrics, clustering techniques, time synchronization and localization protocols, as well as sensing techniques are introduced in chapter five to nine. The concluding chapter summarizes the learnt methods and shows how to use them to deploy real-world sensor networks in a structured way.

  12. Wireless cortical implantable systems

    CERN Document Server

    Majidzadeh Bafar, Vahid

    2013-01-01

    Wireless Cortical Implantable Systems examines the design for data acquisition and transmission in cortical implants. The first part of the book covers existing system-level cortical implants, as well as future devices. The authors discuss the major constraints in terms of microelectronic integration. The second part of the book focuses on system-level as well as circuit and system level solutions to the development of ultra low-power and low-noise microelectronics for cortical implants. Existing solutions are presented and novel methods and solutions proposed. The third part of the book focuses on the usage of digital impulse radio ultra wide-band transmission as an efficient method to transmit cortically neural recorded data at high data-rate to the outside world. Original architectural and circuit and system solutions are discussed.

  13. Wireless Ad Hoc Networks

    Directory of Open Access Journals (Sweden)

    Hong-Chuan Yang

    2007-01-01

    Full Text Available We study the energy-efficient configuration of multihop paths with automatic repeat request (ARQ mechanism in wireless ad hoc networks. We adopt a cross-layer design approach and take both the quality of each radio hop and the battery capacity of each transmitting node into consideration. Under certain constraints on the maximum tolerable transmission delay and the required packet delivery ratio, we solve optimization problems to jointly schedule the transmitting power of each transmitting node and the retransmission limit over each hop. Numerical results demonstrate that the path configuration methods can either significantly reduce the average energy consumption per packet delivery or considerably extend the average lifetime of the multihop route.

  14. Wireless Josephson amplifier

    International Nuclear Information System (INIS)

    Narla, A.; Sliwa, K. M.; Hatridge, M.; Shankar, S.; Frunzio, L.; Schoelkopf, R. J.; Devoret, M. H.

    2014-01-01

    Josephson junction parametric amplifiers are playing a crucial role in the readout chain in superconducting quantum information experiments. However, their integration with current 3D cavity implementations poses the problem of transitioning between waveguide, coax cables, and planar circuits. Moreover, Josephson amplifiers require auxiliary microwave components, like directional couplers and/or hybrids, that are sources of spurious losses and impedance mismatches that limit measurement efficiency and amplifier tunability. We have developed a wireless architecture for these parametric amplifiers that eliminates superfluous microwave components and interconnects. This greatly simplifies their assembly and integration into experiments. We present an experimental realization of such a device operating in the 9–11 GHz band with about 100 MHz of amplitude gain-bandwidth product, on par with devices mounted in conventional sample holders. The simpler impedance environment presented to the amplifier also results in increased amplifier tunability.

  15. Secure positioning in wireless networks

    DEFF Research Database (Denmark)

    Capkun, Srdjan; Hubaux, Jean-Pierre

    2006-01-01

    So far, the problem of positioning in wireless networks has been studied mainly in a non-adversarial settings. In this work, we analyze the resistance of positioning techniques to position and distance spoofing attacks. We propose a mechanism for secure positioning of wireless devices, that we call...... Verifiable Multilateration. We then show how this mechanism can be used to secure positioning in sensor networks. We analyze our system through simulations....

  16. Wireless Communications in Reverberant Environments

    Science.gov (United States)

    2015-01-01

    solutions exist which can be tailored to meet the needs nearly any wireless application. Some notable current solutions include USRPs [27] and GNURadio ...tailored to meet the needs nearly any wireless application. Some notable current solutions include USRPs [27] and GNURadio [28]. For this effort, the WARPv3...en.wikipedia.org/wiki/List of software-defined radios [27] “Ettus research.” [Online]. Available: http://www.ettus.com [28] “ Gnuradio .” [Online]. Available: http

  17. WIRELESS MINE WIDE TELECOMMUNICATIONS TECHNOLOGY

    Energy Technology Data Exchange (ETDEWEB)

    Zvi H. Meiksin

    2002-04-01

    Two industrial prototype units for through-the-earth wireless communication were constructed and tested. Preparation for a temporary installation in NIOSH's Lake Lynn mine for the through-the-earth and the in-mine system were completed. Progress was made in the programming of the in-mine system to provide data communication. Work has begun to implement a wireless interface between equipment controllers and our in-mine system.

  18. WIRELESS MINE WIDE TELECOMMUNICATIONS TECHNOLOGY

    International Nuclear Information System (INIS)

    Zvi H. Meiksin

    2002-01-01

    Two industrial prototype units for through-the-earth wireless communication were constructed and tested. Preparation for a temporary installation in NIOSH's Lake Lynn mine for the through-the-earth and the in-mine system were completed. Progress was made in the programming of the in-mine system to provide data communication. Work has begun to implement a wireless interface between equipment controllers and our in-mine system

  19. A survey of routing protocols in wireless body sensor networks.

    Science.gov (United States)

    Bangash, Javed Iqbal; Abdullah, Abdul Hanan; Anisi, Mohammad Hossein; Khan, Abdul Waheed

    2014-01-13

    Wireless Body Sensor Networks (WBSNs) constitute a subset of Wireless Sensor Networks (WSNs) responsible for monitoring vital sign-related data of patients and accordingly route this data towards a sink. In routing sensed data towards sinks, WBSNs face some of the same routing challenges as general WSNs, but the unique requirements of WBSNs impose some more constraints that need to be addressed by the routing mechanisms. This paper identifies various issues and challenges in pursuit of effective routing in WBSNs. Furthermore, it provides a detailed literature review of the various existing routing protocols used in the WBSN domain by discussing their strengths and weaknesses.

  20. Performance Evaluation of a Mobile Wireless Computational Grid ...

    African Journals Online (AJOL)

    PROF. OLIVER OSUAGWA

    2015-12-01

    Dec 1, 2015 ... This work developed and simulated a mathematical model for a mobile wireless computational Grid architecture using networks of queuing ... (response time). Thus the problem is formulated as a non-cooperative game among .... evaluation are analytical modelling, simulation and measurement [10]. In this ...

  1. Wireless communication, tracking in mines topic of symposium

    OpenAIRE

    Trulove, Susan

    2006-01-01

    In response to the call for increased mine safety and improved underground communications in the wake of recent mining fatalities, the Virginia Center for Coal and Energy Research at Virginia Tech is cooperating with the Virginia Department of Mines Minerals and Energy to offer a Symposium on the Capabilities and Availability of Wireless Communication and Tracking Systems for Underground Coal Mines.

  2. Wireless vibration-based SHM of caisson-type breakwater under foundation damage

    Science.gov (United States)

    Lee, So-Young; Nguyen, Khac-Duy; Kim, Jeong-Tae; Yi, Jin-Hak

    2012-04-01

    This paper presents a vibration-based structural health monitoring (SHM) technique using a high sensitive wireless sensor node for caisson-type breakwater. To achieve the objective, the following approaches are implemented. Firstly, vibration-based SHM method is selected for caisson-type breakwater. The feasibility of the vibration-based SHM method is examined for the caisson structure by FE analysis. Foundation loss damage is considered as the damage of caisson-type breakwater. Secondly, a wireless SHM system with a high sensitive wireless sensor node is designed. The sensor node is built on an imote2 platform. The vibration-based SHM method is embedded on the sensor node. Finally, the performance of the wireless SHM technique is estimated from experimental tests on a lab-scaled caisson. The vibration responses and damage monitoring results are compared with the proposed wireless system and conventional wired system.

  3. Audience Effects in Territorial Defense of Male Cichlid Fish Are Associated with Differential Patterns of Activation of the Brain Social Decision-Making Network

    Science.gov (United States)

    Roleira, António; Oliveira, Gonçalo A.; Lopes, João S.; Oliveira, Rui F.

    2017-01-01

    Animals communicate by exchanging signals frequently in the proximity of other conspecifics that may detect and intercept signals not directed to them. There is evidence that the presence of these bystanders modulates the signaling behavior of interacting individuals, a phenomenon that has been named audience effect. Research on the audience effect has predominantly focused on its function rather than on its proximate mechanisms. Here, we have investigated the physiological and neuromolecular correlates of the audience effect in a cichlid fish (Mozambique tilapia, Oreochromis mossambicus). A male was exposed to a territorial intrusion in the presence or absence of a female audience. Results showed that the presence of the female audience increased territorial defense, but elicited a lower androgen and cortisol response to the territorial intrusion. Furthermore, analysis of the expression of immediate early genes, used as markers of neuronal activity, in brain areas belonging to the social decision-making network (SDMN) revealed different patterns of network activity and connectivity across the different social contexts (i.e., audience × intrusion). Overall, these results suggest that socially driven plasticity in the expression of territorial behavior is accommodated in the central nervous system by rapid changes in functional connectivity between nodes of relevant networks (SDMN) rather than by localized changes of activity in specific brain nuclei. PMID:28620286

  4. The development of wireless radiation dose monitoring using smart phone

    International Nuclear Information System (INIS)

    Lee, Jin Woo; Jeong, Gyo Seong; Lee, Yun Jong; Kim, Chong Yeal; Lim, Chai Wan

    2016-01-01

    Radiation workers at a nuclear facility or radiation working area should hold personal dosimeters. some types of dosimeters have functions to generate audible or visible alarms to radiation workers. However, such devices used in radiation fields these days have no functions to communicate with other equipment or the responsible personnel. our project aims at the development of a remote wireless radiation dose monitoring system that can be utilized to monitor the radiation dose for radiation workers and to notify the radiation protection manager of the dose information in real time. We use a commercial survey meter for personal radiation measurement and a smart phone for a mobile wireless communication tool and a Beacon for position detection of radiation workers using Blue tooth communication. In this report, the developed wireless dose monitoring of cellular phone is introduced

  5. The Conversations About Cancer (CAC) project: assessing feasibility and audience impacts from viewing The Cancer Play.

    Science.gov (United States)

    Beach, Wayne A; Buller, Mary K; Dozier, David M; Buller, David B; Gutzmer, Kyle

    2014-01-01

    Basic communication research has identified a major social problem: communicating about cancer from diagnosis through death of a loved one. Over the past decade, an award-winning investigation into how family members talk through cancer on the telephone, based on a corpus of 61 phone calls over a period of 13 months, has been transformed into a theatrical production entitled The Cancer Play. All dialogue in the play is drawn from naturally occurring (transcribed) interactions between family members as they navigate their way through the trials, tribulations, hopes, and triumphs of a cancer journey. This dramatic performance explicitly acknowledges the power of the arts as an exceptional learning tool for extending empirical research, exploring ordinary family life, and exposing the often taken-for-granted conceptions of health and illness. In this study, a Phase I STTR project funded by the National Cancer Institute (NCI), we assess the feasibility of educating and impacting cancer patients, family members, and medical professionals who viewed the play as a live performance and through DVD screenings. Pre- and postperformance questionnaires were administered to solicit audience feedback. Pre-post change scores demonstrate overwhelming and positive impacts for changing opinions about the perceived importance, and attributed significance, of family communication in the midst of cancer. Paired-sample t-tests were conducted on five factor-analyzed indices/indicators-two indices of opinions about cancer and family communication, two indices measuring the importance of key communication activities, and the self-efficacy indicator-and all factors improved significantly (<.001). Informal talkback sessions were also held following the viewings, and selected audience members participated in focus groups. Talkback and focus-group sessions generated equally strong, support responses. Implications of the Phase I study are being applied in Phase II, a currently funded effort to

  6. Cinema audiences reproducibly vary the chemical composition of air during films, by broadcasting scene specific emissions on breath

    Science.gov (United States)

    Williams, Jonathan; Stönner, Christof; Wicker, Jörg; Krauter, Nicolas; Derstroff, Bettina; Bourtsoukidis, Efstratios; Klüpfel, Thomas; Kramer, Stefan

    2016-05-01

    Human beings continuously emit chemicals into the air by breath and through the skin. In order to determine whether these emissions vary predictably in response to audiovisual stimuli, we have continuously monitored carbon dioxide and over one hundred volatile organic compounds in a cinema. It was found that many airborne chemicals in cinema air varied distinctively and reproducibly with time for a particular film, even in different screenings to different audiences. Application of scene labels and advanced data mining methods revealed that specific film events, namely “suspense” or “comedy” caused audiences to change their emission of specific chemicals. These event-type synchronous, broadcasted human chemosignals open the possibility for objective and non-invasive assessment of a human group response to stimuli by continuous measurement of chemicals in air. Such methods can be applied to research fields such as psychology and biology, and be valuable to industries such as film making and advertising.

  7. Exposing earth surface process model simulations to a large audience

    Science.gov (United States)

    Overeem, I.; Kettner, A. J.; Borkowski, L.; Russell, E. L.; Peddicord, H.

    2015-12-01

    The Community Surface Dynamics Modeling System (CSDMS) represents a diverse group of >1300 scientists who develop and apply numerical models to better understand the Earth's surface. CSDMS has a mandate to make the public more aware of model capabilities and therefore started sharing state-of-the-art surface process modeling results with large audiences. One platform to reach audiences outside the science community is through museum displays on 'Science on a Sphere' (SOS). Developed by NOAA, SOS is a giant globe, linked with computers and multiple projectors and can display data and animations on a sphere. CSDMS has developed and contributed model simulation datasets for the SOS system since 2014, including hydrological processes, coastal processes, and human interactions with the environment. Model simulations of a hydrological and sediment transport model (WBM-SED) illustrate global river discharge patterns. WAVEWATCH III simulations have been specifically processed to show the impacts of hurricanes on ocean waves, with focus on hurricane Katrina and super storm Sandy. A large world dataset of dams built over the last two centuries gives an impression of the profound influence of humans on water management. Given the exposure of SOS, CSDMS aims to contribute at least 2 model datasets a year, and will soon provide displays of global river sediment fluxes and changes of the sea ice free season along the Arctic coast. Over 100 facilities worldwide show these numerical model displays to an estimated 33 million people every year. Datasets storyboards, and teacher follow-up materials associated with the simulations, are developed to address common core science K-12 standards. CSDMS dataset documentation aims to make people aware of the fact that they look at numerical model results, that underlying models have inherent assumptions and simplifications, and that limitations are known. CSDMS contributions aim to familiarize large audiences with the use of numerical

  8. The entry to Kolarac foundation: Cultural activity and music audience

    Directory of Open Access Journals (Sweden)

    Hadžibulić Sabina

    2016-01-01

    Full Text Available The Foundation of Ilija Milosavljević Kolarac (also known as Kolarac Foundation; in Serbian: Kolarčeva zadužbina was established simultaneously with the development of the most important modern cultural institutions in Serbia in the 19th century. The quality and diversity of the program, the ability to recognize important topics in the current time, as well as preservation of the old and encouragement of new ideas in almost all domains of art and science have contributed to its unquestionable reputation throughout the region. However, there have been no significant academic attempts to approach its work analytically and, in particular, its audience. The aim of this paper is to give an overview of the work of Kolarac Foundation by presenting the origin and history of the institution, followed by an analysis of the program of all its activities in the first ten seasons of the new millennium. The central part of the paper is an analysis of its cultural activity in the given period. Finally, by using empirical data, the music audence of Great Hall (Velika Dvorana of Kolarac Foundation is profiled through its basic socio-demographic characteristics and music practices. The music audience mainly consisted of women, highly educated professionals with a high material standard. The share of the oldest and those from 21 to 30 years old is the highest and, at the same time, equal. This audience is authentically fond of music, with no exceptions at all. Its members listen to music on everyday basis, and they were attending concerts in the year before the investigation. They find music to be an inevitable part of their lives, and cannot imagine emotional expression or making friendships without it. Finally, they sincerely like coming to Kolarac Foundation since they find it to be a place that has all the positive treats of a good cultural institution.

  9. LRN, ERN:, & BERN @ Wireless Integrating the Sciences (WITS) Theatre

    Science.gov (United States)

    Hilliard, L.; Campbell, B.; Foody, M.; Klitsner, D.

    2010-01-01

    In order to develop a call to action for a learning tool that would work to best teach Science Technology Engineering and Math (STEM), the NASA Goddard team will partner with the inventor of Bop It!, an interactive game of verbs and following instructions; and Global Imagination, the developers of Magic Planet. In this paper Decision-making Orbital Health! (DOH!) will be described as a game derived from the basic functions necessary for Bop lt!, a familiar game. that will ask the educational audience to respond to changing commands to Bop It!, Twist It!, and Squeeze It! The success of the new version of the game, will be that the Earth will be making these commands from Dynamic Planet, and the crowd assembled can play wirelessly. Wireless Integrating The Sciences (WITS) Theatre : A balanced approach will describe how the communities local to Goddard and perhaps San Francisco will develop curriculum that helps kids teach kids with an engaging game and a STEM message. The performing arts will be employed to make it entertaining and appropriate to the size of the gathering, and the students educational level.

  10. Evaluation and Audience Acceptance in Biotech News Texts

    DEFF Research Database (Denmark)

    Holmgreen, Lise-Lotte; Vestergaard, Torben

    2009-01-01

    It is well known that news texts are not value neutral and that in these texts even genuinely factual statements can function as evaluations. Hence, only an analysis of the types of evaluation used will reveal the true picture of the attitudinal import of reporting texts. The paper explores...... the audience of a particular viewpoint. Moreover, it is shown that the newspaper caters to a readership which sees risk as a societal and ethical issue rather than a scientific one. Along these lines, the imagined reader is constructed as a less change oriented person than the reader of the newspaper's opinion...

  11. Eliciting Audience's Experience to Improve Interactive Art Installation

    DEFF Research Database (Denmark)

    Baharin, Hanif; Morrison, Ann

    2006-01-01

    Designing with the users in mind is one of the widely accepted design practices in the Interaction Design field. On the other hand, it can be said that audience's experience is the heart of an interactive art. Since Interaction Design has shown that user's involvement in the design process can be...... installation using techniques adopted from Interaction Design such as prototyping, observation and contextual interview is described. This paper also presents the result from the contextual interview and the improvement made to the installation....

  12. Public speaking in virtual reality: Audience design and speaker experiences

    OpenAIRE

    Kang, N.

    2016-01-01

    Whether we are talking about our research at a conference, making a speech at a friend’s wedding, or presenting a proposal in a businessmeeting,we have to speak in public from time to time. How well we deliver a presentation affects the way people think about us and our message. To deliver a well-received speech, preparation is necessary. Among various speech preparation activities, practicing with an audience is regarded as an effective way for enhancing speech performance. However, it is of...

  13. Estimating online audiences: Understanding the limitations of competitive intelligence services

    OpenAIRE

    Kamerer, David

    2013-01-01

    How much traffic does a Web site receive? While many may want to know the relative influence of someone else's site, generally only the site owner has access to accurate data. JavaScript-based Web analytics, such as Google Analytics or Omniture, are widely considered the gold standard for tracking audiences. These services are census- rather than sample-based. They also have the virtues of being entirely passive (requiring no input from the visitor) as well as providing true measures of behav...

  14. Experimental Comparison of Routing Protocols for Wireless Sensors Networks: Routing Overhead and Asymmetric Links

    OpenAIRE

    Audéoud , Henry-Joseph; Heusse , Martin

    2017-01-01

    International audience; RPL (the IETF Routing Protocol for Low-Power and Lossy Networks) and LRP (Lightweight Routing Protocol) have in common to build a collection tree (or, more precisely, a DODAG) and “downward” host routes in the wireless sensor network. Additionally, the objective of LRP is to keep control overhead as low as possible. To substantiate this claim, we compare RPL and LRP using 40 nodes of the IoT-LAB testbed — and the results are telling.We then introduce asymmetric links, ...

  15. Traffic Profiling in Wireless Sensor Networks

    National Research Council Canada - National Science Library

    Kirykos, Georgios

    2006-01-01

    .... Wireless sensor networks pose unique challenges and limitations to the traditional schemes, which are used in the other wireless networks for security protection, and are due mainly to the increased...

  16. CMOS circuits for passive wireless microsystems

    CERN Document Server

    Yuan, Fei

    2011-01-01

    Here is a comprehensive examination of CMOS circuits for passive wireless microsystems. Covers design challenges, fundamental issues of ultra-low power wireless communications, radio-frequency power harvesting, and advanced design techniques, and more.

  17. Wireless Sensor Portal Technology, Phase II

    Data.gov (United States)

    National Aeronautics and Space Administration — Mobitrum Corporation has demonstrated the feasibility in the Phase I of " A Wireless Sensor Portal Technology" and proposes a Phase II effort to develop a wireless...

  18. Kali Linux wireless penetration testing beginner's guide

    CERN Document Server

    Ramachandran, Vivek

    2015-01-01

    If you are a security professional, pentester, or anyone interested in getting to grips with wireless penetration testing, this is the book for you. Some familiarity with Kali Linux and wireless concepts is beneficial.

  19. Social facilitation of cognition in rhesus monkeys: audience vs. coaction

    Directory of Open Access Journals (Sweden)

    Amélie J. Reynaud

    2015-12-01

    Full Text Available Social psychology has long established that the mere presence of a conspecific, be it an active co-performer (coaction effect, or a passive spectator (audience effect changes behavior in humans. Yet, the process mediating this fundamental social influence has so far eluded us. Brain research and its nonhuman primate animal model, the rhesus macaque, could shed new light on this long debated issue. For this approach to be fruitful, however, we need to improve our patchy knowledge about social presence influence in rhesus macaques. Here, seven adults (two dyads and one triad performed a simple cognitive task consisting in touching images to obtain food treats, alone versus in presence of a co-performer or a spectator. As in humans, audience sufficed to enhance performance to the same magnitude as coaction. Effect sizes were however 4 times larger than those typically reported in humans in similar tasks. Both findings are an encouragement to pursue brain and behavior research in the rhesus macaque to help solve the riddle of social facilitation mechanisms.

  20. Captivating Broad Audiences with an Internet-connected Ocean

    Science.gov (United States)

    Moran, K.; Elliott, L.; Gervais, F.; Juniper, K.; Owens, D.; Pirenne, B.

    2012-12-01

    NEPTUNE Canada, a network of Ocean Networks Canada and the first deep water cabled ocean observatory, began operations in December 2009. Located offshore Canada's west coast, the network streams data from passive, active, and interactive sensors positioned at five nodes along its 800 km long looped cable to the Internet. This technically advanced system includes a sophisticated data management and archiving system, which enables the collection of real-time physical, chemical, geological, and biological oceanographic data, including video, at resolutions relevant for furthering our understanding of the dynamics of the earth-ocean system. Scientists in Canada and around the world comprise the primary audience for these data, but NEPTUNE Canada is also serving these data to broader audiences including K-16 students and teachers, informal educators, citizen scientists, the press, and the public. Here we present our engagement tools, approaches, and experiences including electronic books, personal phone apps, Internet-served video, social media, mini-observatory systems, print media, live broadcasting from sea, and a citizen scientist portal.NEPTUNE Canada's ibook available on Apple's iBook store.

  1. Small Influence of Performing from Memory on Audience Evaluation

    Directory of Open Access Journals (Sweden)

    Reinhard Kopiez

    2017-09-01

    Full Text Available This study investigates the influence of an actual music stand on the evaluation of a videotaped audio-visual solo instrumental performance. Previous research has provided evidence that the presence of a score or music stand (obstructing the audience's view of the performer might negatively influence the evaluation of the performance. However, due to methodological ambiguities, results in previous studies cannot be regarded as definitive. Thus, we conducted a replication study of Williamon (1999 with better control over confounding variables (e.g., varying levels of technical proficiency in different conditions. A violoncello player performed two pieces for solo instrument: once with a music stand on stage (pretending to play from score and once without. The level of technical proficiency was kept constant in both performance presentations by the use of a pre-recorded, well-rehearsed performance from memory. Audio tracks were synchronized with the performance movements in a playback paradigm. Based on the performance evaluations from a web-based experiment (N = 471 participants, we found a significant but small effect size for the main effect of performance presentation (with vs. without music stand (d = 0.23. We conclude that the audience's appreciation of a particular performance from memory might be based on factors other than the objective performance quality.

  2. Interests: A prerequisite for the development of the art audience

    Directory of Open Access Journals (Sweden)

    Dragin Dušica

    2016-01-01

    Full Text Available The concept of art audience is understood as that, very small, part of population which possesses developed cultural needs and developed and regular cultural practice. Using Guy Debord's words we set a question: What are the chances for the arts compared with the glittering appearances of a spectacle in the modern world in which the tendency towards general banalization dominates? This question is considered as essential for cultural protagonists. Following Nemanjić's theory about cultural needs, we emphasize that the cultural need is formed as a cultural interest, which means that interests have a crucial role in the development of cultural needs, and consequently in cultural consumption. Accordingly, we think that the understanding of the importance of interests as a prerequisite for the development of the art audience is one of the most significant issues in the theory and practice of management in culture. The aim of the paper is to present the concept and its numerous factors in the process of forming and developing interests, as well as to point to the necessity and possibilities of the development of artistic interests, the latter being especially relevant to the management/managers of cultural institutions.

  3. Engaging the audience: developing presentation skills in science students.

    Science.gov (United States)

    Stuart, Ann E

    2013-01-01

    This article describes a graduate class in presentation skills ("PClass") as a model for how a class with similar objectives, expectations and culture might be mounted for undergraduates. The required class is given for students in neuroscience and physiology programs at the University of North Carolina at Chapel Hill; I describe the class in the years I led it, from 2003-2012. The class structure centered on peer rehearsal, critiquing of PowerPoint, and chalk talks by the students; video-recording of student talks for later review by the student with the instructor; and presentation of polished talks in a formal setting. A different faculty visitor to the class each week gave the students a variety of perspectives. The students also gained insight into their own evolving skills by discussing the strengths and weaknesses of seminars given by visitors to the campus. A unique feature of the class was collaboration with a professional actor from the University's Department of Dramatic Arts, who helped the students develop techniques for keeping the attention of an audience, for speaking with confidence, and for controlling nervousness. The undergraduate campus would be expected to lend itself to this sort of interdisciplinary faculty cooperation. In addition, students worked on becoming adept at designing and presenting posters, introducing speakers graciously and taking charge of the speaker's question session, and speaking to a lay audience.

  4. Engaging the Audience: Developing Presentation Skills in Science Students

    Science.gov (United States)

    Stuart, Ann E.

    2013-01-01

    This article describes a graduate class in presentation skills (“PClass”) as a model for how a class with similar objectives, expectations and culture might be mounted for undergraduates. The required class is given for students in neuroscience and physiology programs at the University of North Carolina at Chapel Hill; I describe the class in the years I led it, from 2003–2012. The class structure centered on peer rehearsal, critiquing of PowerPoint, and chalk talks by the students; video-recording of student talks for later review by the student with the instructor; and presentation of polished talks in a formal setting. A different faculty visitor to the class each week gave the students a variety of perspectives. The students also gained insight into their own evolving skills by discussing the strengths and weaknesses of seminars given by visitors to the campus. A unique feature of the class was collaboration with a professional actor from the University’s Department of Dramatic Arts, who helped the students develop techniques for keeping the attention of an audience, for speaking with confidence, and for controlling nervousness. The undergraduate campus would be expected to lend itself to this sort of interdisciplinary faculty cooperation. In addition, students worked on becoming adept at designing and presenting posters, introducing speakers graciously and taking charge of the speaker’s question session, and speaking to a lay audience. PMID:24319389

  5. Audience design affects acoustic reduction via production facilitation.

    Science.gov (United States)

    Arnold, Jennifer E; Kahn, Jason M; Pancani, Giulia C

    2012-06-01

    In this article, we examine the hypothesis that acoustic variation (e.g., reduced vs. prominent forms) results from audience design. Bard et al. (Journal of Memory and Language 42:1-22, 2000) have argued that acoustic prominence is unaffected by the speaker's estimate of addressee knowledge, using paradigms that contrast speaker and addressee knowledge. This question was tested in a novel paradigm, focusing on the effects of addressees' feedback about their understanding of the speaker's intended message. Speakers gave instructions to addressees about where to place objects (e.g., the teapot goes on red). The addressee either anticipated the object, by picking it up before the instruction, or waited for the instruction. For anticipating addressees, speakers began speaking more quickly and pronounced the word the with shorter duration, demonstrating effects of audience design. However, no effects appeared on the head noun (e.g., teapot), as measured by duration, amplitude, and perceived intelligibility. These results are consistent with a mechanism in which evidence about addressee understanding facilitates production processes, as opposed to triggering particular acoustic forms.

  6. Wireless Structural Sensing for Health Monitoring and Control Applications

    Science.gov (United States)

    Lynch, J. P.

    2003-12-01

    The economic and societal impact of civil structures under-performing during large earthquakes can be significant. While in recent years the structural engineering community has made great strides in advancing knowledge of structural behavior under extreme loads, a need still exists for the rapid assessment of structural performance during seismic events. Numerous options are commercially available to facility owners who wish to install a structural monitoring system within their structures. However, these structural monitoring systems are defined by their use of coaxial cables for the transfer of response measurements from sensors to centralized data servers. The installation and maintenance of cables within a civil structure often drive system costs high thereby preventing widespread industry adoption. In response to these limitations, the integration of information technologies such as wireless communications and microcontrollers have been explored for the creation of alternative structural monitoring systems defined by low installation costs and decentralized computational frameworks. In particular, a novel wireless structural monitoring system assembled from a dense network of inexpensive wireless sensing units has been designed and fabricated. The wireless sensing unit architecture consists of three functional components: a data acquisition interface for the collection of data from attached sensors, a computational core for data interrogation, and a wireless communication channel for the transfer of data to the sensor network. The use of wireless modems drastically reduces the efforts and costs of system installations rendering the technology attractive for widespread adoption in a broad class of civil structures. A second innovation of the system is the inclusion of computational power within each wireless sensing unit allowing for local execution of embedded engineering analyses. In particular, analyses for the detection of damage in structures (structural

  7. Convergent Television and 'Audience Participation': The Early Days of Interactive Digital Television in the UK

    Directory of Open Access Journals (Sweden)

    Vivi Theodoropoulou

    2014-12-01

    Full Text Available The paper focuses on the introduction of interactive digital television (DTV in the UK, at the turn of the millennium, and its take-up and use by early audiences. It discusses whether the processes of television technological convergence went together with “consumer behavior convergence”[i], enhanced audience engagement with the interactive TV services offered, and participation. Based on findings from a UK-wide survey and interviews with early Sky digital subscribers[ii] it shows that early interactive DTV was taken up because of its multichannel offering and thematic orientation and, interestingly, was approached and appreciated mostly as a television content provider. It thus notes a divergence on industry’s attempts to promote convergence in broadcasting and on the level and pace with which users adopt and adapt to such change. In so doing it highlights the evolutionary nature and slow rate of ‘change’ of cultural habits and forms. [i] Horst Stipp, ‘Convergence now?’, The International Journal of Media Management, 1, 1, 1999, 10-13. [ii] A postal survey using a simple random sample of 1986 early Sky digital subscribers was conducted and achieved a response rate of 35.25%. This was complemented by 15 in-depth interviews with a stratified sample of the original survey sample. In the quotes that follow the gender initial (Male or Female and age of the interviewee is used as an identification mark.

  8. STUDY & SURVEY ON WIRELESS CHARGING & TECHNOLOGY

    OpenAIRE

    Harshal Sharma*

    2016-01-01

    In the modern world, we have often heard a word- wireless charging technology. Actually what is it all about? So this paper is giving you the whole package about wireless charging technology. Wireless charging is a technology through which power is transmitted through an air gap to the electrical devices for the motive of replenishment of energy. At present wireless charging techniques and development of commercial products have provided a promise to address the energy bottleneck of portable ...

  9. Security Threats on Wireless Sensor Network Protocols

    OpenAIRE

    H. Gorine; M. Ramadan Elmezughi

    2016-01-01

    In this paper, we investigate security issues and challenges facing researchers in wireless sensor networks and countermeasures to resolve them. The broadcast nature of wireless communication makes Wireless Sensor Networks prone to various attacks. Due to resources limitation constraint in terms of limited energy, computation power and memory, security in wireless sensor networks creates different challenges than wired network security. We will discuss several attempts at addressing the issue...

  10. Proposal of Wireless Traffic Control Schemes for Wireless LANs

    Science.gov (United States)

    Hiraguri, Takefumi; Ichikawa, Takeo; Iizuka, Masataka; Kubota, Shuji

    This paper proposes two traffic control schemes to support the communication quality of multimedia streaming services such as VoIP and audio/video over IEEE 802.11 wireless LAN systems. The main features of the proposed scheme are bandwidth control for each flow of the multimedia streaming service and load balancing between access points (APs) of the wireless LAN by using information of data link, network and transport layers. The proposed schemes are implemented on a Linux machine which is called the wireless traffic controller (WTC). The WTC connects a high capacity backbone network and an access network to which the APs are attached. We evaluated the performance of the proposed WTC and confirmed that the communication quality of the multimedia streaming would be greatly improved by using this technique.

  11. Opening New Doors: Hands-On Participation Brings a New Audience to the Clay Studio. Wallace Studies in Building Arts Audiences

    Science.gov (United States)

    Harlow, Bob; Heywood, Tricia

    2015-01-01

    This case study examines how The Clay Studio, a ceramic-arts studio, gallery and shop in Philadelphia, attracted younger audiences to its workshops and exhibits. In 2007, the studio became concerned that its audience was getting older and few newcomers were signing up for classes or making purchases. The studio had to engage younger professionals…

  12. Techniques for Wireless Applications

    KAUST Repository

    Gaaloul, Fakhreddine

    2012-05-01

    Switching techniques have been first proposed as a spacial diversity techniques. These techniques have been shown to reduce considerably the processing load while letting multi-antenna systems achieve a specific target performance. In this thesis, we take a different look at the switching schemes by implementing them for different other wireless applications. More specifically, this thesis consists of three main parts, where the first part considers a multiuser environment and an adaptive scheduling algorithm based on the switching with post-selection scheme for statistically independent but non-identically distributed channel conditions. The performance of this switched based scheduler is investigated and a multitude of performance metrics are presented. In a second part, we propose and analyze the performance of three switched-based algorithms for interference reduction in the downlink of over-loaded femtocells. For instance, performance metrics are derived in closed-form and these metrics are used to compare these three proposed schemes. Finally in a third part, a switch based opportunistic channel access scheme is proposed for a cognitive radio system and its performance is analyzed in terms of two new proposed metrics namely the average cognitive radio access and the waiting time duration.

  13. Wireless capsule endo bronchoscopy

    Directory of Open Access Journals (Sweden)

    Baratz DM

    2014-03-01

    Full Text Available No abstract available. Article truncated at 150 words. Case Presentation History of Present Illness A 67 year-old man presents 10 days after swallowing a capsule endoscopy camera that was never retrieved. The wireless capsule was swallowed asymptomatically for evaluation of heme positive stools after negative upper and lower endoscopies. Patient noted that the evening after swallowing the camera he developed mild shortness of breath and cough. The cough and shortness of breath were persistent and worsened while lying down and when moving positions. He denied prior issues with swallowing or aspiration. Review of Systems Negative other than what is noted above. PMH, SH, and FH Past medical history: coronary artery disease, peripheral vascular disease, hyperlipidemia Surgical history: femoral-popliteal bypass, previous shoulder and back surgery Social history: 1 pack/day of cigarettes for 50 years, prior alcohol usage but not current, no illicit drugs Family history: no pulmonary diseases Physical Exam Vital signs: temperature 36.7º C, heart rate 86 beats per minute ...

  14. Advanced Wireless Sensor Nodes - MSFC

    Science.gov (United States)

    Varnavas, Kosta; Richeson, Jeff

    2017-01-01

    NASA field center Marshall Space Flight Center (Huntsville, AL), has invested in advanced wireless sensor technology development. Developments for a wireless microcontroller back-end were primarily focused on the commercial Synapse Wireless family of devices. These devices have many useful features for NASA applications, good characteristics and the ability to be programmed Over-The-Air (OTA). The effort has focused on two widely used sensor types, mechanical strain gauges and thermal sensors. Mechanical strain gauges are used extensively in NASA structural testing and even on vehicle instrumentation systems. Additionally, thermal monitoring with many types of sensors is extensively used. These thermal sensors include thermocouples of all types, resistive temperature devices (RTDs), diodes and other thermal sensor types. The wireless thermal board will accommodate all of these types of sensor inputs to an analog front end. The analog front end on each of the sensors interfaces to the Synapse wireless microcontroller, based on the Atmel Atmega128 device. Once the analog sensor output data is digitized by the onboard analog to digital converter (A/D), the data is available for analysis, computation or transmission. Various hardware features allow custom embedded software to manage battery power to enhance battery life. This technology development fits nicely into using numerous additional sensor front ends, including some of the low-cost printed circuit board capacitive moisture content sensors currently being developed at Auburn University.

  15. WIRELESS FIDELITY (Wi-Fi) BROADBAND NETWORK ...

    African Journals Online (AJOL)

    ES Obe

    categorized into two types: fixed and mobile wireless. The broadband fixed wireless network technologies .... 3.0 WIRELESS FIDELITYF (Wi-Fi). NETWORK IMPLEMENTATION. A Wi-Fi enabled device such as a PC, game .... Amateur radio, video senders, and cordless phones, can cause significant additional interference.

  16. WirelessHART modeling and performance evaluation

    NARCIS (Netherlands)

    Remke, Anne Katharina Ingrid; Wu, Xian

    2013-01-01

    In process industries wired supervisory and control networks are more and more replaced by wireless systems. Wireless communication inevitably introduces time delays and message losses, which may degrade the system reliability and performance. WirelessHART, as the first international standard for

  17. A Piezoelectric Passive Wireless Sensor for Monitoring Strain

    Science.gov (United States)

    Zou, Xiyue; Ferri, Paul N.; Hogan, Ben; Mazzeo, Aaron D.; Hull. Patrick V.

    2017-01-01

    Interest in passive wireless sensing has grown over the past few decades to meet demands in structural health monitoring.(Deivasigamani et al., 2013; Wilson and Juarez, 2014) This work describes a passive wireless sensor for monitoring strain, which does not have an embedded battery or chip. Without an embedded battery, the passive wireless sensor has the potential to maintain its functionality over long periods in remote/harsh environments. This work also focuses on monitoring small strain (less than 1000 micro-?). The wireless sensing system includes a reader unit, a coil-like transponder, and a sensing unit. It operates in the Megahertz (MHz) frequency range, which allows for a few centimeters of separation between the reader and sensing unit during measurements. The sensing unit is a strain-sensitive piezoelectric resonator that maximizes the energy efficiency at the resonance frequency, so it converts nanoscale mechanical variations to detectable differences in electrical signal. In response to an external loading, the piezoelectric sensor breaks from its original electromechanical equilibrium, and the resonant frequency shifts as the system reaches a new balanced equilibrium. In this work, the fixture of the sensing unit is a small, sticker-like package that converts the surface strain of a test material to measurable shifts in resonant frequencies. Furthermore, electromechanical modeling provides a lumped-parameter model of the system to describe and predict the measured wireless signals of the sensor. Detailed characterization demonstrates how this wireless sensor has resolution comparable to that of conventional wired strain sensors for monitoring small strain.

  18. Wireless image streaming in mobile ultrasound.

    Science.gov (United States)

    Dickson, Brett W; Pedersen, Peder C

    2010-03-01

    This work evaluates the feasibility of using 802.11 g ad hoc and 3G cellular broadband networks to wirelessly stream ultrasound video in real-time. Telemedicine ultrasound applications in events such as disaster relief and first-response triage can incorporate these technologies, enabling onsite medical personnel to receive assistance with diagnostic decisions by remote medical experts. The H.264 scalable video codec was used to encode echocardiographic video streams at various image resolutions (video graphics array [VGA] and quarter video graphics array [QVGA]) and frame rates (10, 15, 20, and 30 frames/s). The video stream was transmitted using 802.11 g and 3G cellular technologies, and pertinent transmission parameters such as data rate, packet loss, delay jitter, and latency were measured. 802.11 g permits high frame rate and VGA resolution and has low latency and jitter, but it is suitable only for short communication ranges, whereas the 3G cellular network allows medium to low frame rate streaming at QVGA image resolution with medium latency. However, video streaming can take place from any location with 3G service to any other site with Internet connectivity. The transmitted ultrasound video streams were subsequently recorded and evaluated by physicians with expertise in medical ultrasonography who evaluated the diagnostic value of the received video streams relative to the original videos. They expressed the opinion that image quality in the case of both 802.11 g and 3G was fully to adequately preserved, but missed frames could momentarily decrease the diagnostic value. This research demonstrates that 3G and 802.11 g wireless networks combined with efficient video compression make diagnostically valuable wireless streaming of ultrasound video feasible.

  19. Wireless device monitoring systems and monitoring devices, and associated methods

    Science.gov (United States)

    McCown, Steven H; Derr, Kurt W; Rohde, Kenneth W

    2014-05-27

    Wireless device monitoring systems and monitoring devices include a communications module for receiving wireless communications of a wireless device. Processing circuitry is coupled with the communications module and configured to process the wireless communications to determine whether the wireless device is authorized or unauthorized to be present at the monitored area based on identification information of the wireless device. Methods of monitoring for the presence and identity of wireless devices are also provided.

  20. Impact of wireless link quality across communication layers

    OpenAIRE

    Zhou, J.

    2010-01-01

    Nowadays, wireless networks are used in most of the applications with radio technologies being used in all kinds of wireless networks. In all wireless links, the transmitted packets can be lost. How to identify the quality of a certain wireless link and achieve the best delivery performance over a certain wireless network is an open issue. In this thesis, the performance of wireless mesh network, wireless sensor network and cellular network have been investigated by the method of measurements...

  1. Sun-Earth Connection EPO's with Multiple Uses and Audiences

    Science.gov (United States)

    Foster, S. Q.; Johnson, R. M.; Russell, R.; Lu, G.; Richmond, A.; Maute, A.; Haller, D.; Conery, C.; Bintner, G.; Kiessling, D.; Hughes, W. J.

    2005-05-01

    The three-year life of an EPO grant can be a journey guided by clear goals and enriched by collaborative and outreach opportunities connecting Space sciences to Earth sciences for both K-12 and public audiences. This point is illustrated by two EPO projects funded by NASA Sun-Earth Connection research grants to the High Altitude Observatory (HAO) at the National Center for Atmospheric Research. They are entering their final year coordinated by the Office of Education and Outreach at University Corporation for Atmospheric Research. The content focus of both projects is well aligned with HAO's research mission and the expertise of our scientists, addressing solar dynamics, space weather, and the impacts of solar events on the magnetosphere, as well as societies inhabiting Earth's surface. The first project (Gang Lu, PI) develops presentation resources, inquiry activities, and tips that will help HAO scientists be better prepared to visit K-12 classrooms. Unexpectedly, the simultaneous development of a Teachers' Guide to NCAR's new Climate Discovery exhibit, which takes an Earth system approach to climate and global change, has created a niche for this EPO resource to be revised and repurposed for a needed unit in the guide about the exhibit's graphic panels on Sun-Earth connections. The second project (Art Richmond, PI) engages two high school "Teachers in Residence" to develop resources they can utilize with their students. Excited by exceptional educational graphics and animations in the new Physics of the Aurora: Earth Systems module co-produced by HAO and the COMET Program for advanced undergraduate courses, they chose to adapt appropriate sections of the module to enrich Earth science and math concepts addressed in their 9th and 10th grade astronomy and general physics classes. Simultaneously, the Windows to the Universe web site, which continuously updates space science content and is now developing a new Space Weather section with support from the Center for

  2. Wireless Augmented Reality Communication System

    Science.gov (United States)

    Devereaux, Ann (Inventor); Jedrey, Thomas (Inventor); Agan, Martin (Inventor)

    2017-01-01

    A portable unit is for video communication to select a user name in a user name network. A transceiver wirelessly accesses a communication network through a wireless connection to a general purpose node coupled to the communication network. A user interface can receive user input to log on to a user name network through the communication network. The user name network has a plurality of user names, at least one of the plurality of user names is associated with a remote portable unit, logged on to the user name network and available for video communication.

  3. OFDM systems for wireless communications

    CERN Document Server

    Narasimhamurthy, Adarsh

    2010-01-01

    Orthogonal Frequency Division Multiplexing (OFDM) systems are widely used in the standards for digital audio/video broadcasting, WiFi and WiMax. Being a frequency-domain approach to communications, OFDM has important advantages in dealing with the frequency-selective nature of high data rate wireless communication channels. As the needs for operating with higher data rates become more pressing, OFDM systems have emerged as an effective physical-layer solution.This short monograph is intended as a tutorial which highlights the deleterious aspects of the wireless channel and presents why OFDM is

  4. Embracing interference in wireless systems

    CERN Document Server

    Gollakota, Shyamnath

    2014-01-01

    The wireless medium is a shared resource. If nearby devices transmit at thesame time, their signals interfere, resulting in a collision. In traditionalnetworks, collisions cause the loss of the transmitted information. For thisreason, wireless networks have been designed with the assumption thatinterference is intrinsically harmful and must be avoided.This book, a revised version of the author's award-winning Ph.D.dissertation, takes an alternate approach: Instead of viewing interferenceas an inherently counterproductive phenomenon that should to be avoided, wedesign practical systems that tra

  5. The Wireless Nursing Call System

    DEFF Research Database (Denmark)

    Jensen, Casper Bruun

    2006-01-01

    This paper discusses a research project in which social scientists were involved both as analysts and supporters during a pilot with a new wireless nursing call system. The case thus exemplifies an attempt to participate in developing dependable health care systems and offers insight into the cha......This paper discusses a research project in which social scientists were involved both as analysts and supporters during a pilot with a new wireless nursing call system. The case thus exemplifies an attempt to participate in developing dependable health care systems and offers insight...

  6. Artificial intelligence in wireless communications

    CERN Document Server

    Rondeau, Thomas W

    2009-01-01

    This cutting-edge resource offers practical overview of cognitive radio, a paradigm for wireless communications in which a network or a wireless node changes its transmission or reception parameters. The alteration of parameters is based on the active monitoring of several factors in the external and internal radio environment. This book offers a detailed description of cognitive radio and its individual parts. Practitioners learn how the basic processing elements and their capabilities are implemented as modular components. Moreover, the book explains how each component can be developed and t

  7. Emerging wireless networks concepts, techniques and applications

    CERN Document Server

    Makaya, Christian

    2011-01-01

    An authoritative collection of research papers and surveys, Emerging Wireless Networks: Concepts, Techniques, and Applications explores recent developments in next-generation wireless networks (NGWNs) and mobile broadband networks technologies, including 4G (LTE, WiMAX), 3G (UMTS, HSPA), WiFi, mobile ad hoc networks, mesh networks, and wireless sensor networks. Focusing on improving the performance of wireless networks and provisioning better quality of service and quality of experience for users, it reports on the standards of different emerging wireless networks, applications, and service fr

  8. Principles of wireless access and localization

    CERN Document Server

    Pahlavan, Kaveh

    2013-01-01

    A comprehensive, encompassing and accessible text examining a wide range of key Wireless Networking and Localization technologies This book provides a unified treatment of issues related to all wireless access and wireless localization techniques.  The book reflects principles of design and deployment of infrastructure for wireless access and localization for wide, local, and personal networking.   Description of wireless access methods includes design and deployment of traditional TDMA and CDMA technologies and emerging Long Term Evolution (LTE) techniques for wide area cellular networks, the

  9. Receptive Audiences for Climate Change Education: Understanding Attitudes and Barriers

    Science.gov (United States)

    Kelly, L. D.; Luebke, J. F.; Clayton, S.; Saunders, C. D.; Matiasek, J.; Grajal, A.

    2012-12-01

    Much effort has been devoted to finding ways to explain climate change to uninterested audiences and encourage mitigation behaviors among dismissive audiences. Most approaches have focused on conveying information about climate change processes or threats. Here we report the results of a national survey designed to characterize the readiness of zoo and aquarium visitors to engage with the issue of climate change. Two survey forms, one focused primarily on attitudes (N=3,594) and another on behaviors (N=3,588), were administered concurrently in summer 2011 at 15 Association of Zoos and Aquariums accredited institutions. The attitudes survey used Global Warming's Six Americas segmentation protocols (climatechangecommunication.org) to compare climate change attitudes of zoo and aquarium visitors with the American public (Leiserowitz et al., 2011). Our results reveal that visitors are receptive audiences for climate change education and want to do more to address climate change. Even these favorable audiences, however, perceive barriers to engaging in the issue, signifying the importance of meeting the learning needs of those who acknowledge anthropogenic climate change, and not only of climate change 'deniers.' While 39% of the general public is 'concerned' or 'alarmed' about global warming, 64% of zoo and aquarium visitors fall into these two "Six Americas" segments. Visitors also differ from the national sample in key attitudinal characteristics related to global warming. For example, nearly two-thirds believe human actions are related to global warming, versus less than one-half of the general public; and approximately 60% think global warming will harm them personally, moderately or a great deal, versus less than 30% of the general public. Moreover, 69% of visitors would like to do more to address climate change. Despite zoo and aquarium visitors' awareness of climate change and motivation to address it, survey results indicate they experience barriers to

  10. Audience, consequence, and journal selection in toxic-exposure epidemiology.

    Science.gov (United States)

    Rier, David A

    2004-10-01

    Even preliminary toxic-exposure epidemiology papers can spark "media scares" and questionable reactions amongst the public. Concerns for the social consequences of publication can lead epidemiologists--despite the advantages of visible publication--to choose a more obscure outlet for potentially sensitive studies. Interviews with 61 US toxic-exposure epidemiologists indicate that investigators generally sought visible journals to transmit their work to the widest relevant audience. Yet up to 36-46% of this sample sometimes have sought or would seek to keep their research from a public who, they feared, might misuse their results. Implications for the boundaries between science and society (including evidence of hidden scientific activism and "inert" public activism) are discussed, and six hypotheses for further research are proposed.

  11. UNDERSTANDING OUR AUDIENCE: MESSAGES FROM CONCEPT TO COMPLETION

    Directory of Open Access Journals (Sweden)

    Tharwat EL-Sakran

    2018-03-01

    Full Text Available The United Arab Emirates (UAE is a business hub for a great number of multinational and international companies that conduct daily communication activities in English, which has made efficient and audience sensitive written communication an essential requirement in today’s workplace. With computer-mediated communication (CMC taking over face-to-face communication, this has created an essential need for students to learn efficient and appropriate communication styles pertinent to communication via emails. This study presents a pragmatic approach for teaching the how of writing appropriate and effective professional email messages. Comparisons of pre-and post-teaching email messages point to significant improvements in the quality of post teaching email messages.

  12. Active audiences and journalism: Involved citizens or motivated consumers?

    Directory of Open Access Journals (Sweden)

    Pere Masip

    2015-09-01

    Full Text Available Audience participation, in any of its forms and names (public journalism, citizen journalism, participatory journalism, UGC, appears to revitalise democracy, thanks to the opportunities for public debate opened up by information and communications technology. On the other hand, however, there are many authors who question whether interactive technologies really encourage democracy or the market, empower the citizen or strengthen the consumer. In this context, we still have little information on the motivations that drive citizens to actively participate through the mechanisms that the media make available to them on their own websites or through social networks. There is a similar lack of information on the role that users attribute to their involvement in the functioning of the media and whether it contributes to improving their democratic function. This article aims to shed some light on this subject.

  13. The Affective Audience in Professional E-sport

    DEFF Research Database (Denmark)

    Gommesen, Niels Jørgen

    2012-01-01

    This master’s thesis investigates the members of the audience in professional e-sport. Through a wide range of examples it shows that players, spectators and various nonhuman actors are nested together in assemblages. It states that human-nonhuman actors in ‘co-creation’ constitute the game play...... and consumers of the game play. My ethnographic studies draw from a multifaceted approach counting visual ethnography, participant observations and interviews of 35 dedicated spectators and fans, situated at two professional e-sports competitions, the largest digital festival in the world, Dreamhack in Sweden...... sharing their emotional lives with each other and with the players. Their different ways of sharing their emotions and feelings are a result of their capacities to establish emotional and affective relations with one another. Lastly I show that technologies and technological environments have an impact...

  14. Efficient Wireless Charger Deployment for Wireless Rechargeable Sensor Networks

    Directory of Open Access Journals (Sweden)

    Jehn-Ruey Jiang

    2016-08-01

    Full Text Available A wireless rechargeable sensor network (WRSN consists of sensor nodes that can harvest energy emitted from wireless chargers for refilling their batteries so that the WRSN can operate sustainably. This paper assumes wireless chargers are equipped with directional antennas, and are deployed on grid points of a fixed height to propose two heuristic algorithms solving the following wireless charger deployment optimization (WCDO problem: how to deploy as few as possible chargers to make the WRSN sustainable. Both algorithms model the charging space of chargers as a cone and calculate charging efficiency according power regression expressions complying with the Friis transmission equation. The two algorithms are the greedy cone covering (GCC algorithm and the adaptive cone covering (ACC algorithm. The GCC (respectively, ACC algorithm greedily (respectively, adaptively generates candidate cones to cover as many as possible sensor nodes. Both algorithms then greedily select the fewest number of candidate cones, each of which corresponds to the deployment of a charger, to have approximate solutions to the WCDO problem. We perform experiments, conduct simulations and do analyses for the algorithms to compare them in terms of the time complexity, the number of chargers deployed, and the execution time.

  15. Wireless Ways: Business and Personal Applications of Wireless Technology.

    Science.gov (United States)

    Chung, Joe

    2001-01-01

    Describes the Art Technology Group (ATG), an electronic business and customer management company, and the work they have done with wireless technology. Highlights include designing virtual offices and supporting the resulting virtual community; the mobility it allows; problems with bandwidth; and display issues. (LRW)

  16. Wireless Sensor Network System for Measuring the Magnetic Noise of Inverter-Fed Three-Phase Induction Motors with Squirrel-Cage Rotor

    OpenAIRE

    Negoita, Andrei; Scutaru, Gheorghe; Peter, Ioan; Ionescu, Razvan,

    2011-01-01

    Part 16: Electrical Machines - I; International audience; The object of this paper is the study of the noise produced by inverter-fed three-phase induction motors with squirrel-cage rotor. A wireless sensor network based measurement system is proposed, which gives the possibility of measuring the sound pressure virtually simultaneously in multiple points around the motor. In the case of inverter fed motors, the phenomena that lead to the production of the magnetic noise become more complex an...

  17. Introduction to Ultra Wideband for Wireless Communications

    DEFF Research Database (Denmark)

    Nikookar, Homayoun; Prasad, Ramjee

    Ultra Wideband (UWB) Technology is the cutting edge technology for wireless communications with a wide range of applications. In Introduction to Ultra Wideband for Wireless Communications UWB principles and technologies for wireless communications are explained clearly. Key issues such as UWB...... wireless channels, interference, signal processing as well as applications and standardization activities are addressed. Introduction to Ultra Wideband for Wireless Communications provides easy-to-understand material to (graduate) students and researchers working in the field of commercial UWB wireless...... communications. Due to tutorial nature of the book it can also be adopted as a textbook on the subject in the Telecommunications Engineering curriculum. Problems at the end of each chapter extend the reader's understanding of the subject. Introduction to Ultra Wideband for Wireless Communications will aslo...

  18. Performance of Wireless Networks in Highly Reflective Rooms with Variable Absorption

    Science.gov (United States)

    2014-09-01

    responsible for the creation of the Open Systems Interconnection ( OSI ) model , which has been a conceptual model that characterizes and standardizes the...media access control (MAC) sublayer of the data-link layer of the OSI model for wireless LANs [1]. Collectively, these are referred to as WiFi. The...WIRELESS NETWORKS IN HIGHLY REFLECTIVE ROOMS WITH VARIABLE ABSORPTION by Aníbal L. Intini September 2014 Thesis Advisor: John Gibson Co

  19. 76 FR 21742 - Wireless Telecommunications Bureau Extends Period for Filing Comments and Reply Comments on...

    Science.gov (United States)

    2011-04-18

    ...In this document, the Wireless Telecommunications Bureau extends the deadline for filing comments and reply comments in response to the Public Notice seeking comment on the December 3, 2010 petition for declaratory ruling (Petition) filed by CTIA--The Wireless Association (Petitioners). The Petitioners asked the Federal Communications Commission (Commission) to clarify ``the scope of Section 332(c)(3)(A)'s ban on state and local entry regulation.''

  20. Fans and sport events’ audiences as victims of violence induced by sport

    Directory of Open Access Journals (Sweden)

    Mršević Zorica

    2015-01-01

    Full Text Available The paper analyzes causes and mechanisms of victimization by sports violence, as well as the typology of victims and those responsible actors of sports violence. The aim of the paper is to point out, through an analysis of the individual situations of ritualized sports violence, that the suffering of victims of sports violence comes in the system of ritualized forms of relations and behaviors related to sport and organized fan groups, as well as that the victims are the most numerous among fans and the audience. The paper provides an overview of different types of sports violence rituals that result in victimization of individuals or groups. [Projekat Ministarstva nauke Republike Srbije, br. III 47010: Društvene transformacije u procesu evropskih integracija - multidisciplinarni pristup

  1. Wireless Power for Mobile Devices

    NARCIS (Netherlands)

    Waffenschmidt, E.

    2011-01-01

    Wireless power transfer allows a convenient, easy to use battery charging of mobile phones and other mobile devices. No hassle with cables and plugs, just place the device on a pad and that’s it. Such asystem even has the potential to become a standard charging solution. Where are the limits for

  2. Socially Aware Heterogeneous Wireless Networks.

    Science.gov (United States)

    Kosmides, Pavlos; Adamopoulou, Evgenia; Demestichas, Konstantinos; Theologou, Michael; Anagnostou, Miltiades; Rouskas, Angelos

    2015-06-11

    The development of smart cities has been the epicentre of many researchers' efforts during the past decade. One of the key requirements for smart city networks is mobility and this is the reason stable, reliable and high-quality wireless communications are needed in order to connect people and devices. Most research efforts so far, have used different kinds of wireless and sensor networks, making interoperability rather difficult to accomplish in smart cities. One common solution proposed in the recent literature is the use of software defined networks (SDNs), in order to enhance interoperability among the various heterogeneous wireless networks. In addition, SDNs can take advantage of the data retrieved from available sensors and use them as part of the intelligent decision making process contacted during the resource allocation procedure. In this paper, we propose an architecture combining heterogeneous wireless networks with social networks using SDNs. Specifically, we exploit the information retrieved from location based social networks regarding users' locations and we attempt to predict areas that will be crowded by using specially-designed machine learning techniques. By recognizing possible crowded areas, we can provide mobile operators with recommendations about areas requiring datacell activation or deactivation.

  3. Underwater optical wireless communication network

    Science.gov (United States)

    Arnon, Shlomi

    2010-01-01

    The growing need for underwater observation and subsea monitoring systems has stimulated considerable interest in advancing the enabling technologies of underwater wireless communication and underwater sensor networks. This communication technology is expected to play an important role in investigating climate change, in monitoring biological, biogeochemical, evolutionary, and ecological changes in the sea, ocean, and lake environments, and in helping to control and maintain oil production facilities and harbors using unmanned underwater vehicles (UUVs), submarines, ships, buoys, and divers. However, the present technology of underwater acoustic communication cannot provide the high data rate required to investigate and monitor these environments and facilities. Optical wireless communication has been proposed as the best alternative to meet this challenge. Models are presented for three kinds of optical wireless communication links: (a) a line-of-sight link, (b) a modulating retroreflector link, and (c) a reflective link, all of which can provide the required data rate. We analyze the link performance based on these models. From the analysis, it is clear that as the water absorption increases, the communication performance decreases dramatically for the three link types. However, by using the scattered light it was possible to mitigate this decrease in some cases. It is concluded from the analysis that a high-data-rate underwater optical wireless network is a feasible solution for emerging applications such as UUV-to-UUV links and networks of sensors, and extended ranges in these applications could be achieved by applying a multi-hop concept.

  4. Data centric wireless sensor networks

    NARCIS (Netherlands)

    Dulman, S.O.; Havinga, Paul J.M.

    2005-01-01

    The vision of wirteless sensing systems requires the development of devices and technologies that can be pervasive without being intrusive. The basic component of such a smart environment will be a small node with sensing and wireless communications capabilities, able to organize itself flexibly

  5. Wireless Crew Communication Feasibility Assessment

    Science.gov (United States)

    Archer, Ronald D.; Romero, Andy; Juge, David

    2016-01-01

    Ongoing discussions with crew currently onboard the ISS as well as the crew debriefs from completed ISS missions indicate that issues associated with the lack of wireless crew communication results in increased crew task completion times and lower productivity, creates cable management issues, and increases crew frustration.

  6. A Design Approach to Engage with Audience with Wearable Musical Instruments: Sound Gloves

    OpenAIRE

    Lai, Chi-Hsia; Tahiroglu, Koray

    2012-01-01

    This paper addresses the issue of engaging the audience with new musical instruments in live performance context. We introduce design concerns that we consider influential to enhance the communication flow between the audience and the performer. We also propose and put in practice a design approach that considers the use of performance space as a way to engage with the audience. A collaborative project, Sound Gloves, presented here exemplifies such a concept by dissolving the space between pe...

  7. Deployable Wireless Camera Penetrators

    Science.gov (United States)

    Badescu, Mircea; Jones, Jack; Sherrit, Stewart; Wu, Jiunn Jeng

    2008-01-01

    A lightweight, low-power camera dart has been designed and tested for context imaging of sampling sites and ground surveys from an aerobot or an orbiting spacecraft in a microgravity environment. The camera penetrators also can be used to image any line-of-sight surface, such as cliff walls, that is difficult to access. Tethered cameras to inspect the surfaces of planetary bodies use both power and signal transmission lines to operate. A tether adds the possibility of inadvertently anchoring the aerobot, and requires some form of station-keeping capability of the aerobot if extended examination time is required. The new camera penetrators are deployed without a tether, weigh less than 30 grams, and are disposable. They are designed to drop from any altitude with the boost in transmitting power currently demonstrated at approximately 100-m line-of-sight. The penetrators also can be deployed to monitor lander or rover operations from a distance, and can be used for surface surveys or for context information gathering from a touch-and-go sampling site. Thanks to wireless operation, the complexity of the sampling or survey mechanisms may be reduced. The penetrators may be battery powered for short-duration missions, or have solar panels for longer or intermittent duration missions. The imaging device is embedded in the penetrator, which is dropped or projected at the surface of a study site at 90 to the surface. Mirrors can be used in the design to image the ground or the horizon. Some of the camera features were tested using commercial "nanny" or "spy" camera components with the charge-coupled device (CCD) looking at a direction parallel to the ground. Figure 1 shows components of one camera that weighs less than 8 g and occupies a volume of 11 cm3. This camera could transmit a standard television signal, including sound, up to 100 m. Figure 2 shows the CAD models of a version of the penetrator. A low-volume array of such penetrator cameras could be deployed from an

  8. Message Design and Audience Engagement with Tobacco Prevention Posts on Social Media.

    Science.gov (United States)

    Strekalova, Yulia A; Damiani, Rachel E

    2016-11-10

    Understanding the appropriate medium to communicate health promotion messages is vital for improving personal and societal health. As increasingly more people utilize social media for health information, public health practitioners use these platforms to engage an existing audience in health promotion messages. In this study, the relational framing theory was used as a lens for studying how message framing may influence social media audience engagement. Specifically, we assessed how posts from Tobacco Free Florida's Facebook page were framed as either dominant-submissive or affiliate-disaffiliate to an implied audience of either smokers, nonsmokers, active quitters, or a mixed audience, and the extent to which a direct call for engagement, in terms of a request to comment, like, or share the post, was used for audience engagement. A three-way interaction for the level of engagement through comments was significant, F(3217) = 7.11, p implied audience choice played a role in audience engagement with smoking cessation posts on social media. Implied audiences of Tobacco Free Florida's posts included smokers, those who are trying to quit, and nonsmokers as health promotion can be targeted at the individual's health, social support infrastructure, or the well-being of the society, and implications for strategic message design and audience targeting are discussed.

  9. Wireless and mobile systems in telemedicine

    Directory of Open Access Journals (Sweden)

    Reza Safdari

    2012-12-01

    Full Text Available Background: It is necessary to deploy mobile and wireless systems in healthcare, because they have many benefits for healthcare systems. The objectives of this article were introducing various systems, applications, and standards of the wireless and mobile telemedicine. Material and Methods: This review study was conducted in 2010. To conduct the study, published articles in the years 2005 to 2012, in English with an emphasis on wireless and mobile technologies in health were studied. Search was done with key words include telemedicine, wireless health systems, health and telecommunications technology in databases including Pubmed, Science Direct, Google Scholar, Web of Sciences, Proquest. The collected data were analyzed. Results: Telemedicine system in the ambulance, telemedicine systems in space, telecardiology systems, EEG system, ultrasound system are some types of wireless and mobile systems in telemedicine. PDA-based mobile and wireless telemedicine application, based PDA drug application, and patient tracking application are some of wireless and mobile applications of telemedicine. The most important standards of wireless and mobile telemedicine are HL7, DICOM, SNOMed, and ICD-9-CM. Conclusion: There are many challenges in the wireless and mobile systems in telemedicine, despite the many benefits. Slow speed in sending pictures and video, lack of attention to the privacy in the design of these systems, environmental variables and the number of users during the day are some of these challenges. It is recommended to consider these challenges during the planning and designing of wireless and mobile systems in telemedicine.

  10. A Wireless and Passive Low-Pressure Sensor

    Directory of Open Access Journals (Sweden)

    Pascal Nicolay

    2014-02-01

    Full Text Available This paper will discuss the results obtained with a first prototype of a completely passive and wireless low pressure sensor. The device is a heat conductivity gauge, based on a wireless and passive SAW temperature sensor. The required heating energy is applied to the sensor using inductive coupling. The prototype was successfully tested in a vacuum chamber. Its equilibrium temperature changed drastically and in a reproducible way when pressure steps were applied. However, the response time was very long. A model is provided to account for the sensor’s behavior. It is then used to show that the response time could be strongly improved using basic design improvements. Further possible improvements are discussed.

  11. Energy-efficient digital and wireless IC design for wireless smart sensing

    Science.gov (United States)

    Zhou, Jun; Huang, Xiongchuan; Wang, Chao; Tae-Hyoung Kim, Tony; Lian, Yong

    2017-10-01

    Wireless smart sensing is now widely used in various applications such as health monitoring and structural monitoring. In conventional wireless sensor nodes, significant power is consumed in wirelessly transmitting the raw data. Smart sensing adds local intelligence to the sensor node and reduces the amount of wireless data transmission via on-node digital signal processing. While the total power consumption is reduced compared to conventional wireless sensing, the power consumption of the digital processing becomes as dominant as wireless data transmission. This paper reviews the state-of-the-art energy-efficient digital and wireless IC design techniques for reducing the power consumption of the wireless smart sensor node to prolong battery life and enable self-powered applications.

  12. Adaptive Naive Bayes classification for wireless sensor networks

    NARCIS (Netherlands)

    Zwartjes, G.J.

    2017-01-01

    Wireless Sensor Networks are tiny devices equipped with sensors and wireless communication. These devices observe environments and communicatie about these observations. Machine Learning techniques are of interest for Wireless Sensor Network applications since they can reduce the amount of needed

  13. Wireless communication technologies in distribution automation

    Energy Technology Data Exchange (ETDEWEB)

    Takala, J. [VTT Energy, Espoo (Finland)

    1998-08-01

    The project started in mid 1995 and will be finished in 1997. The project examines four different wireless communication technologies: GSM short message service, NMT data calls, packet radio network and Autonet (Actionet) status message service. The targets for communication include: Energy measurement, especially in the de-regulated electricity market, secondary sub-station control and fault indicators. The research has been focused on the usability of different communication technologies for different purposes. Data about response times, reliability, error rates, retry times, communication delays, costs etc. has been collected about each communication technology and comparative results were analysed. Some field experiments and demonstrations will be made in energy measurement and distribution network remote control. The project is divided into four tasks. Each task is described briefly

  14. The Filipino male as a target audience in family planning.

    Science.gov (United States)

    Vitug, W

    1986-01-01

    Since the official launching of the Philippine Population Program in 1970, family planning campaigns have substantially addressed themselves to women. The suggestion to devote equal, if not more, attention to men as family planning targets had been raised by Dr. Mercado as early as 1971. It was not until 1978, that the deliberate inclusion of males as a target audience in family planning became a matter of policy. The Population Center Foundation (PCF), from 1979 to 1982, carried out research projects to determine the most suitable approaches and strategies to reach Filipino men. The objectives of the PCF's Male Specific Program are: 1) to test alternative schemes in promoting male family planning methods through pilot-testing of family planning clinics for men, 2) to develop teaching materials geared toward specific segments of the male population, 3) to undertake skills training in male-specific motivational approaches for program professionals, and 4) to assess the extent of the husband's role in family planning. An important finding of 1 study was that most outreach workers were female stood in the way of the motivation process, thus hampering the campaign. While the consultative motivational skills training improved knowledge, attitudes, and skills of outreach workers with regard to vasectomy and the motivation process, there were certain predispositions that were hindering the fieldworkers' effectiveness in motivating target clients. Overall, in-depth, 1-to-1 motivation in dealing with men is needed to strengthen internalization of family planning values.

  15. Exit Noise Summer Fest: Explaining the audience in ethnographic discourse

    Directory of Open Access Journals (Sweden)

    Lukić-Krstanović Miroslava M.

    2005-01-01

    Full Text Available In Ethnology, studying festivals is a relevant activity since it could enlighten a number of complex cultural and social processes. The festivals represent public events, public ceremonies, cluster of rituals and produce many symbols, and as such, they are in fact a creative reflection of a society. In this paper, we analyze the Exit Noise Summer Fest, the biggest music festival in SE Europe. The aim of the analysis is to gain understanding of the cultural event of this kind and its protagonists, namely, the audience. Shedding a light to a music spectacle, from a standpoint of social and symbolic communication, directs to a different perspective in reading of rituals, communities zones, and semantic constructions of noise and body in the center of ritual behaviors. The research shows that the music experience and atmosphere of the celebration, though having somewhat unclear ritual borderline and zone, are compatible with the daily culture and social processes, in which the event is created and further reflects itself through various mediums.

  16. A hybrid system identification methodology for wireless structural health monitoring systems based on dynamic substructuring

    Science.gov (United States)

    Dragos, Kosmas; Smarsly, Kay

    2016-04-01

    System identification has been employed in numerous structural health monitoring (SHM) applications. Traditional system identification methods usually rely on centralized processing of structural response data to extract information on structural parameters. However, in wireless SHM systems the centralized processing of structural response data introduces a significant communication bottleneck. Exploiting the merits of decentralization and on-board processing power of wireless SHM systems, many system identification methods have been successfully implemented in wireless sensor networks. While several system identification approaches for wireless SHM systems have been proposed, little attention has been paid to obtaining information on the physical parameters (e.g. stiffness, damping) of the monitored structure. This paper presents a hybrid system identification methodology suitable for wireless sensor networks based on the principles of component mode synthesis (dynamic substructuring). A numerical model of the monitored structure is embedded into the wireless sensor nodes in a distributed manner, i.e. the entire model is segmented into sub-models, each embedded into one sensor node corresponding to the substructure the sensor node is assigned to. The parameters of each sub-model are estimated by extracting local mode shapes and by applying the equations of the Craig-Bampton method on dynamic substructuring. The proposed methodology is validated in a laboratory test conducted on a four-story frame structure to demonstrate the ability of the methodology to yield accurate estimates of stiffness parameters. Finally, the test results are discussed and an outlook on future research directions is provided.

  17. Power Conservation through Energy Efficient Routing in Wireless Sensor Networks.

    Science.gov (United States)

    Kandris, Dionisis; Tsioumas, Panagiotis; Tzes, Anthony; Nikolakopoulos, George; Vergados, Dimitrios D

    2009-01-01

    The power awareness issue is the primary concern within the domain of Wireless Sensor Networks (WSNs). Most power dissipation ocurrs during communication, thus routing protocols in WSNs mainly aim at power conservation. Moreover, a routing protocol should be scalable, so that its effectiveness does not degrade as the network size increases. In response to these issues, this work describes the development of an efficient routing protocol, named SHPER (Scaling Hierarchical Power Efficient Routing).

  18. Preference of reverberation time for musicians and audience of the Javanese traditional gamelan music

    Science.gov (United States)

    Suyatno; Tjokronegoro, H. A.; Merthayasa, I. G. N.; Supanggah, R.

    2016-11-01

    This paper presents results of an investigation of room acoustic parameters those are appropriated particularly to perform a Javanese gamelan. The acoustic parameters were obtained by analysing simulated sounds of performance. Those simulated sounds were obtained by sound convolution technique of a dry sound signal of Javanese gamelan performance with impulse responses rooms whose appropriated reverberation time. The reverberation time were varied between 1.0s to 1.8s, those belong to the characteristic of Pendopo Mangkunegaran Surakarta. In this case, Pendopo Mangkunegaran is assumed as one of the most suitable concert halls for Javanese gamelan performance. To obtain the acoustic parameters, we used a psycho-acoustics measurement based on paired comparison test that having different of acoustic parameters to determine the most comfortable one to majority of respondents. The respondents who have participated in this research composed of a group of professional musicians of Javanese gamelan and groups of audience who are not musician, nevertheless part of them were familiar with Javanese gamelan music. The comparison test gave results and showed majority of respondents of group of musicians had a notion sound reverberation time of 1.2s was most comfortable. This corresponds to +6.2dB, clarity and 74% definition. It means the appropriate acoustic condition allows musicians to recognize and distinguish clearly sound of each instrument being played. Meanwhile, group of audience had a notion reverberation time in a range of 1.2s - 1.6s was most comfortable. This range of reverberation time corresponds to +4dB to +6.2dB of clarity, and 66% to 74% of definition.

  19. Performance Analysis of IIUM Wireless Campus Network

    International Nuclear Information System (INIS)

    Latif, Suhaimi Abd; Masud, Mosharrof H; Anwar, Farhat

    2013-01-01

    International Islamic University Malaysia (IIUM) is one of the leading universities in the world in terms of quality of education that has been achieved due to providing numerous facilities including wireless services to every enrolled student. The quality of this wireless service is controlled and monitored by Information Technology Division (ITD), an ISO standardized organization under the university. This paper aims to investigate the constraints of wireless campus network of IIUM. It evaluates the performance of the IIUM wireless campus network in terms of delay, throughput and jitter. QualNet 5.2 simulator tool has employed to measure these performances of IIUM wireless campus network. The observation from the simulation result could be one of the influencing factors in improving wireless services for ITD and further improvement

  20. Wireless Network Penetration Testing and Security Auditing

    Directory of Open Access Journals (Sweden)

    Wang Shao-Long

    2016-01-01

    Full Text Available IEEE802.11 wireless wireless networks have security issues that are vulnerable to a variety of attacks. Due to using radio to transport data, attackers can bypass firewalls, sniff sensitive information, intercept packets and send malicious packets. Security auditing and penetration testing is expected to ensure wireless networks security. The contributions of this work are analyzed the vulnerability and types of attacks pertaining to IEEE 802.11 WLAN, performed well known attacks in a laboratory environment to conduct penetration tests to confirm whether our wireless network is hackable or not. WAIDPS is configured as auditing tool to view wireless attacks, such as WEP/WPA/WPA2 cracking, rouge access points, denial of service attack. WAIDPS is designed to detect wireless intrusion with additional features. Penetration testing and auditing will mitigate the risk and threatening to protect WALN.

  1. Wireless Technology Application to Nuclear Power Plants

    International Nuclear Information System (INIS)

    Lee, Jeong Kweon; Jeong, See Chae; Jeong, Ki Hoon; Oh, Do Young; Kim, Jae Hack

    2009-01-01

    Wireless technologies are getting widely used in various industrial processes for equipment condition monitoring, process measurement and other applications. In case of Nuclear Power Plant (NPP), it is required to review applicability of the wireless technologies for maintaining plant reliability, preventing equipment failure, and reducing operation and maintenance costs. Remote sensors, mobile technology and two-way radio communication may satisfy these needs. The application of the state of the art wireless technologies in NPPs has been restricted because of the vulnerability for the Electromagnetic Interference and Radio Frequency Interference (EMI/RFI) and cyber security. It is expected that the wireless technologies can be applied to the nuclear industry after resolving these issues which most of the developers and vendors are aware of. This paper presents an overview and information on general wireless deployment in nuclear facilities for future application. It also introduces typical wireless plant monitoring system application in the existing NPPs

  2. mm-Wave Hybrid Photonic Wireless Links for Ultra-High Speed Wireless Transmissions

    DEFF Research Database (Denmark)

    Rommel, Simon; Vegas Olmos, Juan José; Tafur Monroy, Idelfonso

    Hybrid photonic-wireless transmission schemes in the mm-wave frequency range are promising candidates to enable the multi-gigabit per second data communications required from wireless and mobile networks of the 5th and future generations. Large FCC spectrum allocations for wireless transmission...

  3. Application and promotion of wireless charging technology

    OpenAIRE

    Yan, Kaijun

    2014-01-01

    The aim of this thesis is to study wireless charging technology and analyze the application and promotion of each technology. This technology is based on Faraday’s electromagnetic in 1830s. It is not a new technology but it is developing high speed nowadays. This thesis introduces four mainstream types of wireless charging technology and three main-stream standards, and analyzes their features and development status. Wireless charging technology has been applied to some products, suc...

  4. Computer-Based Wireless Advertising Communication System

    Directory of Open Access Journals (Sweden)

    Anwar Al-Mofleh

    2009-10-01

    Full Text Available In this paper we developed a computer based wireless advertising communication system (CBWACS that enables the user to advertise whatever he wants from his own office to the screen in front of the customer via wireless communication system. This system consists of two PIC microcontrollers, transmitter, receiver, LCD, serial cable and antenna. The main advantages of the system are: the wireless structure and the system is less susceptible to noise and other interferences because it uses digital communication techniques.

  5. Application opportunities in wireless communications. Final report

    International Nuclear Information System (INIS)

    Abbott, R.E.; Blevins, R.P.; Olmstead, C.

    1998-07-01

    This report presents the results of examinations of wireless technologies and applications that may offer potential to utilities. Five different wireless technology areas are reviewed. Three areas--Communication Networks, Monitored Security Services, and Home Automation--potentially represent new business ventures for utilities. Two areas--Automatic Vehicle Location and Automated Field-Force Management--represent wireless applications with potential for reduced operating costs and improved customer relations

  6. Design and security of small wireless network

    OpenAIRE

    Žižka, Ladislav

    2012-01-01

    This thesis deals with design and security of small wireless network. Main goal of the thesis is home network design and choice of optimal solution of wireless security. The thesis has four parts. The first part describes computer networks and network components in theory. Next part deals with network design, choosing of network components and setting of them. It also describes some functionalities of alternative firmware DD-WRT. The third part presents common wireless security and network an...

  7. Feasibility and Applications of a Wireless Firewall

    OpenAIRE

    Wilhelm, Matthias

    2016-01-01

    Most of today’s wireless communication devices operate on unlicensed bands with uncoordinated spectrum access, with the consequence that RF interference and collisions are impairing the overall performance of wireless networks. In the classical design of network protocols, both packets in a collision are considered lost, such that channel access mechanisms attempt to avoid collisions proactively. However, with the current proliferation of wireless applications, e.g., WLANs, car-to-car network...

  8. The Persuasive Effect of Host and Audience Reaction Shots in Television Talk Shows.

    Science.gov (United States)

    Nabi, Robin L.; Hendriks, Alexandra

    2003-01-01

    Explores the effects of nonverbal reactions of a talk show host and studio audience members to arguments presented by a talk show guest on a low-involvement topic. Suggests that positive audience or host reactions can enhance persuasive influence; however, if those cues are incongruent, persuasive influence may be negated. Addresses implications…

  9. Public Space, Private Face: Audience Construction at a Noncommercial Radio Station.

    Science.gov (United States)

    Bareiss, Warren

    1998-01-01

    Examines the discursive construction of audience identity at a public radio station in New Mexico by investigating listener letters printed in the radio station's newsletter. Shows how the letters frame the audience in particular ways. Discusses listener letters as an ongoing text, and spatial discourse as metacommunication. (SR)

  10. Virtual Focus Groups in Extension: A Useful Approach to Audience Analysis

    Science.gov (United States)

    Warner, Laura A.

    2014-01-01

    As change agents, Extension educators may begin their program planning by identifying the audience's perceived barriers and benefits to adopting some behavior that will benefit the community. Extension professionals and researchers have used in-person focus groups to understand an audience, and they can also administer them as…

  11. A Taxonomy of Pre/Post Performance Behaviors for Speakers and Audiences in the Basic Course.

    Science.gov (United States)

    Alexander, Bryant Keith

    Noting that introductory public speaking and performance studies classes are often met with great anxiety and trepidation, this paper describes and categorizes the necessary student and audience behaviors at three levels of involvement: 1) pre-performance, 2) post-performance, and 3) audience participation. Teachers can show students how to apply…

  12. Three Concentric Circles: Young Chinese English Learners' Perceptions of Purposeful Audiences

    Science.gov (United States)

    Liu, Jack Jinghui

    2015-01-01

    English learners have more access to communicate with different purposeful audiences across the Three Concentric Circles of English (Kachu, 1985): the Inner Circle, the Outer Circle and the Expanding Circle. However, young language learners' purposeful audience as a focus of communication has not been emphasized as much as other linguistic…

  13. Wikipedia, "the People Formerly Known as the Audience," and First-Year Writing

    Science.gov (United States)

    Kuhne, Michael; Creel, Gill

    2012-01-01

    In 2006, New York University journalism professor Jay Rosen's blog post "The People Formerly Known as the Audience" went viral in the journalism community. In the post Rosen argues that a fundamental power shift has occurred between "Big Media" and "the people formerly known as the audience" (PFKATA), who were not only writing back, but also…

  14. Defining Audience Segments for Extension Programming Using Reported Water Conservation Practices

    Science.gov (United States)

    Monaghan, Paul; Ott, Emily; Wilber, Wendy; Gouldthorpe, Jessica; Racevskis, Laila

    2013-01-01

    A tool from social marketing can help Extension agents understand distinct audience segments among their constituents. Defining targeted audiences for Extension programming is a first step to influencing behavior change among the public. An online survey was conducted using an Extension email list for urban households receiving a monthly lawn and…

  15. Engaging the d/Deaf Audience in Museums: A Case Study at the Calouste Gulbenkian Museum

    Science.gov (United States)

    Martins, Patrícia Roque

    2016-01-01

    This article addresses ways that museums can strengthen programming for d/Deaf audiences. Through the development and study of a tour for a d/Deaf audience conducted through signing and oral translation at the Calouste Gulbenkian Museum in Lisbon (Portugal), the author examines issues of language, identity and inclusion. She argues that the use of…

  16. Biomedical Wireless Ambulatory Crew Monitor

    Science.gov (United States)

    Chmiel, Alan; Humphreys, Brad

    2009-01-01

    A compact, ambulatory biometric data acquisition system has been developed for space and commercial terrestrial use. BioWATCH (Bio medical Wireless and Ambulatory Telemetry for Crew Health) acquires signals from biomedical sensors using acquisition modules attached to a common data and power bus. Several slots allow the user to configure the unit by inserting sensor-specific modules. The data are then sent real-time from the unit over any commercially implemented wireless network including 802.11b/g, WCDMA, 3G. This system has a distributed computing hierarchy and has a common data controller on each sensor module. This allows for the modularity of the device along with the tailored ability to control the cards using a relatively small master processor. The distributed nature of this system affords the modularity, size, and power consumption that betters the current state of the art in medical ambulatory data acquisition. A new company was created to market this technology.

  17. Wireless Augmented Reality Communication System

    Science.gov (United States)

    Devereaux, Ann (Inventor); Jedrey, Thomas (Inventor); Agan, Martin (Inventor)

    2016-01-01

    The system of the present invention is a highly integrated radio communication system with a multimedia co-processor which allows true two-way multimedia (video, audio, data) access as well as real-time biomedical monitoring in a pager-sized portable access unit. The system is integrated in a network structure including one or more general purpose nodes for providing a wireless-to-wired interface. The network architecture allows video, audio and data (including biomedical data) streams to be connected directly to external users and devices. The portable access units may also be mated to various non-personal devices such as cameras or environmental sensors for providing a method for setting up wireless sensor nets from which reported data may be accessed through the portable access unit. The reported data may alternatively be automatically logged at a remote computer for access and viewing through a portable access unit, including the user's own.

  18. Propagation Engineering in Wireless Communications

    CERN Document Server

    Ghasemi, Abdollah; Ghasemi, Farshid

    2012-01-01

    Wireless communications has seen explosive growth in recent decades, in a realm that is both broad and rapidly expanding to include satellite services, navigational aids, remote sensing, telemetering, audio and video broadcasting, high-speed data communications, mobile radio systems and much more. Propagation Engineering in Wireless Communications deals with the basic principles of radiowaves propagation for frequency bands used in radio-communications, offering descriptions of new achievements and newly developed propagation models. The book bridges the gap between theoretical calculations and approaches, and applied procedures needed for advanced radio links design. The primary objective of this two-volume set is to demonstrate the fundamentals, and to introduce propagation phenomena and mechanisms that engineers are likely to encounter in the design and evaluation of radio links of a given type and operating frequency. Volume one covers basic principles, along with tropospheric and ionospheric propagation,...

  19. Mobility needs and wireless solutions

    DEFF Research Database (Denmark)

    Saugstrup, Dan; Henten, Anders

    The main purpose of this report is to spell out a methodological approach to the analysis of user needs with respect to mobility. Furthermore, this methodological approach is used in an exemplary analysis of the relationship between user needs and technology solutions offered by different wireless...... technologies. The report is based on a research approach, emphasizing important aspects in relation to developing more user oriented mobile services and applications in a heterogeneous network environment. As a staring point, Scandinavian research within the field of social science concerning mobility...... is described and discussed. Furthermore different wireless technologies are briefly described and discussed in relation to possible transmission capacities and coverage areas. In addition to this, a preliminary framework regarding the implications of mobility on the use and development of mobile services...

  20. Security in wireless sensor networks

    CERN Document Server

    Oreku, George S

    2016-01-01

    This monograph covers different aspects of sensor network security including new emerging technologies. The authors present a mathematical approach to the topic and give numerous practical examples as well as case studies to illustrate the theory. The target audience primarily comprises experts and practitioners in the field of sensor network security, but the book may also be beneficial for researchers in academia as well as for graduate students.

  1. Passive Wireless SAW Humidity Sensors, Phase I

    Data.gov (United States)

    National Aeronautics and Space Administration — This proposal describes the preliminary development of passive wireless surface acoustic wave (SAW) based humidity sensors for NASA application to distributed...

  2. Distributed medium access control in wireless networks

    CERN Document Server

    Wang, Ping

    2013-01-01

    This brief investigates distributed medium access control (MAC) with QoS provisioning for both single- and multi-hop wireless networks including wireless local area networks (WLANs), wireless ad hoc networks, and wireless mesh networks. For WLANs, an efficient MAC scheme and a call admission control algorithm are presented to provide guaranteed QoS for voice traffic and, at the same time, increase the voice capacity significantly compared with the current WLAN standard. In addition, a novel token-based scheduling scheme is proposed to provide great flexibility and facility to the network servi

  3. EEM{sup TM} wireless supervision

    Energy Technology Data Exchange (ETDEWEB)

    Bilic, H. [Ericsson-Nikola Tesla d.d. Zagreb (Croatia)

    2000-07-01

    By adding the GSM network to the communication level of Energy Management systems, energy operating centres (EOC) can offer wireless access to the supervised equipment. Furthermore EOC can profit from rapid service development in the GSM networks. With implementation of GPRS to the GSM network EOC can instantly offer wireless access to external IP based networks such as Internet and corporate Intranets. The author describes architecture and key characteristic of Ericsson EnergyMaster{sup TM} (EEM{sup TM}) system for Energy Management, how and where to implement wireless supervision, wireless access to IP addresses and also how to implement new services provided by the GSM network. (orig.)

  4. Wireless SAW Interrogator and Sensor System Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Wireless, passive, Surface Acoustic Wave (SAW), Orthogonal Frequency Coded (OFC) temperature sensors, operating in a multi-sensor environment, developed at the...

  5. Wireless 3D Chocolate Printer

    OpenAIRE

    FROILAN G. DESTREZA; FRANCIS CARLO V. SOLLESTRE; MARJORIE V. VASQUEZ; FRANCIS B. MENDOZA

    2014-01-01

    This study is for the BSHRM Students of Batangas State University (BatStateU) ARASOF for the researchers believe that the Wireless 3D Chocolate Printer would be helpful in their degree program especially on making creative, artistic, personalized and decorative chocolate designs. The researchers used the Prototyping model as procedural method for the successful development and implementation of the hardware and software. This method has five phases which are the following: quick plan, quick d...

  6. Inkjet printed wireless smart bandage

    KAUST Repository

    Farooqui, Muhammad Fahad

    2016-12-19

    Chronic wounds affect millions of patients around the world and requires a major portion of health care budget for treatment. In this article, we present an unprecedented low cost continuous wireless monitoring system, realized through inkjet printing on a standard bandage strip, which can send early warnings as well as record long term wound progression data. The smart bandage can communicate upto a distance of 60 m when worn on the body.

  7. Using photographic art to connect researchers with public audiences

    Science.gov (United States)

    Van Haren, J. L.; Roberts, E.; Fields, J.; Johnson, B.; Saleska, S. R.

    2013-12-01

    Communication is a process by which information is exchanged between individuals. Before information can be exchanged both or al parties have to be willing to partake in the communication process. Climate change scientists are still struggling to present their message in part because the general public does not want to hear their message and in part of the personality gap between scientists and the general public (Weiler et al. 2011). This demonstrates the need for communication, through a variety of means, with the general public about who climate change researchers are and what they do, besides the message that they have to convey. This ';feeling' type - relying on personal value and impact of decisions on others- of communication, not common in the scientific community that requires facts, has been suggested to be more effective with the general public (Weiler et al. 2011). We created a multimedia exhibition, which aims to put an intimate human face on science with an approach based on the following ideas: 1) Art initiates the connection between researchers and public audiences through visual stimulation, and 2) The one-on-one experience with a researcher through audio-visual means increases public engagement with climate change science. The exhibition implements these ideas by first, building on the core artistic vision of an artist/photographer who has been accompanying us on field courses and expeditions in the Amazon basin, and second, by bringing the personal voice and stories of students and scientists to the images in which they are represented. Our approach expanded on these themes with a unique twist: we use artistic imagery and video to show the personality of researchers and the process of science. After an image has captured the attention of a visitor, they will be engaged by the intimacy of hearing the scientist explaining how they got there, what they were doing at that particular moment, and why it's relevant and important to the visitor's life

  8. Fashion TV and the Motivation of His Audience

    Directory of Open Access Journals (Sweden)

    Margarita I. Pavlushina

    2017-09-01

    Full Text Available The beginning of the 21st century is characterized not only by important historical events in the world, but also by the changes in value norms and priorities. Television, being the most mass and accessible means of information, reflects these changes directly or indirectly. One of the significant trends of modern media is the development of an entertainment segment, which is present on television in the form of special formats and a specialized content. It is necessary to create special conditions for the permanent demonstration of their events, symbols and samples for the development of fashion, as the reflection of public and cultural content and as the means of search for a person's identity. Television has such natural features that provide fashion industry a unique platform for the development of a global fashionable space and intercivilizational communication. Fashion-TV complements the television picture of the world, influencing the spread of fashion trends and the development of a certain culture of behavior and lifestyle among TV viewers. Fashion-TV, as the combination of specialized Fashion channels and TV projects dedicated to fashion and human beauty on Russian social, political and entertainment channels, is primarily the carrier of information about modern fashion trends in clothing that influences the change of a person social-cultural image. This article the hypothesis of modern fashion TV has a blurred target audience with pronounced gender characteristics and a developed motivation. The article presents the results of the study conducted on the basis of the Kazan Federal University for two years.

  9. Enhancing the versatility of wireless biopotential acquisition for myoelectric prosthetic control

    Science.gov (United States)

    Bercich, Rebecca A.; Wang, Zhi; Mei, Henry; Hammer, Lauren H.; Seburn, Kevin L.; Hargrove, Levi J.; Irazoqui, Pedro P.

    2016-08-01

    Objective. A significant challenge in rehabilitating upper-limb amputees with sophisticated, electric-powered prostheses is sourcing reliable and independent channels of motor control information sufficient to precisely direct multiple degrees of freedom simultaneously. Approach. In response to the expressed needs of clinicians, we have developed a miniature, batteryless recording device that utilizes emerging integrated circuit technology and optimal impedance matching for magnetic resonantly coupled (MRC) wireless power transfer to improve the performance and versatility of wireless electrode interfaces with muscle. Main results. In this work we describe the fabrication and performance of a fully wireless and batteryless EMG recording system and use of this system to direct virtual and electric-powered limbs in real-time. The advantage of using MRC to optimize power transfer to a network of wireless devices is exhibited by EMG collected from an array of eight devices placed circumferentially around a human subject’s forearm. Significance. This is a comprehensive, low-cost, and non-proprietary solution that provides unprecedented versatility of configuration to direct myoelectric prostheses without wired connections to the body. The amenability of MRC to varied coil geometries and arrangements has the potential to improve the efficiency and robustness of wireless power transfer links at all levels of upper-limb amputation. Additionally, the wireless recording device’s programmable flash memory and selectable features will grant clinicians the unique ability to adapt and personalize the recording system’s functional protocol for patient- or algorithm-specific needs.

  10. Application of AN Automated Wireless Structural Monitoring System for Long-Span Suspension Bridges

    Science.gov (United States)

    Kurata, M.; Lynch, J. P.; van der Linden, G. W.; Hipley, P.; Sheng, L.-H.

    2011-06-01

    This paper describes an automated wireless structural monitoring system installed at the New Carquinez Bridge (NCB). The designed system utilizes a dense network of wireless sensors installed in the bridge but remotely controlled by a hierarchically designed cyber-environment. The early efforts have included performance verification of a dense network of wireless sensors installed on the bridge and the establishment of a cellular gateway to the system for remote access from the internet. Acceleration of the main bridge span was the primary focus of the initial field deployment of the wireless monitoring system. An additional focus of the study is on ensuring wireless sensors can survive for long periods without human intervention. Toward this end, the life-expectancy of the wireless sensors has been enhanced by embedding efficient power management schemes in the sensors while integrating solar panels for power harvesting. The dynamic characteristics of the NCB under daily traffic and wind loads were extracted from the vibration response of the bridge deck and towers. These results have been compared to a high-fidelity finite element model of the bridge.

  11. Texas Instruments Technical Seminar: Power Management and Wireless

    CERN Multimedia

    2006-01-01

    Monday 6 November TECHNICAL TRAINING SEMINAR 14:00 to 17:30 - Training Centre Auditorium (bldg. 593) Texas Instruments Technical Seminar: Power Management and Wireless Michael Scholtholt, Field Application Engineer / TEXAS INSTRUMENTS (US, D, CH) The range of power management products available today offers the possibility to find the best solution for each application. To select the right product it is therefore necessary to understand system requirements, how power supply products work, and where they differentiate. This Technical Training Seminar will also present an overview of how to choose the right RF platform based on markets and applications: nowadays almost everbody has at least one wireless product in use, and this tendency seems to increase significantly. Power Management Voltage mode vs. current mode control Differentiating DC/DC converters by analyzing control and compensation schemes: line / load regulation, transient response, BOM, board space, ease-of-use Introduction to evalu...

  12. Texas Instruments Technical Seminar: Power Management and Wireless

    CERN Multimedia

    2006-01-01

    Monday 6 November TECHNICAL TRAINING SEMINAR 14:00 to 17:30 - Training Centre Auditorium (bldg. 593) Texas Instruments Technical Seminar: Power Management and Wireless Michael Scholtholt, Field Application Engineer / TEXAS INSTRUMENTS (US, D, CH) The range of power management products available today offers the possibility to find the best solution for each application. To select the right product it is therefore necessary to understand system requirements, how power supply products work, and where they differentiate. This Technical Training Seminar will also present an overview of how to choose the right RF platform based on markets and applications: nowadays almost everbody has at least one wireless product in use, and this tendency seems to increase significantly. Power Management Voltage mode vs. current mode control Differentiating DC/DC converters by analyzing control and compensation schemes: line / load regulation, transient response, BOM, board space, ease-of-use Introduction to evaluati...

  13. Wireless model predictive control: Application to water-level system

    Directory of Open Access Journals (Sweden)

    Ramdane Hedjar

    2016-04-01

    Full Text Available This article deals with wireless model predictive control of a water-level control system. The objective of the model predictive control algorithm is to constrain the control signal inside saturation limits and maintain the water level around the desired level. Linear modeling of any nonlinear plant leads to parameter uncertainties and non-modeled dynamics in the linearized mathematical model. These uncertainties induce a steady-state error in the output response of the water level. To eliminate this steady-state error and increase the robustness of the control algorithm, an integral action is included in the closed loop. To control the water-level system remotely, the communication between the controller and the process is performed using radio channel. To validate the proposed scheme, simulation and real-time implementation of the algorithm have been conducted, and the results show the effectiveness of wireless model predictive control with integral action.

  14. Wireless sensing system for non-invasive monitoring of attributes of contents in a container

    Science.gov (United States)

    Woodard, Stanley E. (Inventor)

    2010-01-01

    A wireless sensing system monitors the level, temperature, magnetic permeability and electrical dielectric constant of a non-gaseous material in a container. An open-circuit electrical conductor is shaped to form a two-dimensional geometric pattern that can store and transfer electrical and magnetic energy. The conductor resonates in the presence of a time-varying magnetic field to generate a harmonic response. The conductor is mounted in an environmentally-sealed housing. A magnetic field response recorder wirelessly transmits the time-varying magnetic field to power the conductor, and wirelessly detects the harmonic response that is an indication of at least one of level of the material in the container, temperature of the material in the container, magnetic permeability of the material in the container, and dielectric constant of the material in the container.

  15. AUDIENCE AWARENESS IN THE WRITTEN DISCOURSE OF SUDANESE EFL UNIVERSITY LEARNERS

    Directory of Open Access Journals (Sweden)

    Ali Ahmed Osman Zakaria

    2014-12-01

    Full Text Available The study investigates the written discourse of the Sudanese EFL university learners to evaluate and assess their awareness of the audience to whom they write. The analytic descriptive approach is adopted to achieve the aims of the study. The subjects of the study consisted of 50 Sudanese EFL students drawn from Faculty of Arts at Alneelain university. Three tools were employed for data collection: a writing test, a questionnaire and an interview with the students. Results showed that the written discourse produced by Sudanese EFL students did not reveal an awareness of the audience with whom they communicate. The students did not succeed to make assumptions of what their audience already know and what they expect to find in the texts being written. They held fragmentary knowledge on the concept of audience awareness. Accordingly, the students were not able to prepare and edit texts which keep and stimulate their audience – they were not able to depend on lexical and structural variation to produce proper and effective writing. Furthermore, results indicated that students were not able to attach unity and coherence to the texts they produced. Their organizational skills were very poor. To help the students develop the concept they hold on audience awareness, writing instructors and syllabus designers need to put special emphasis on the importance of audience awareness as a factor which is essential for effective writing.

  16. Projecting the voice: observations of audience behaviours in ICT-mediated contemporary opera

    Science.gov (United States)

    Lin, Yu-Wei; Williams, Alan E.

    2014-07-01

    This paper examines how audiences experience live opera performance and the behaviours they exhibit during live-streaming of the performance. It aims to contribute to our understanding of how audiences, who increasingly inhabit an environment saturated with digital media, respond to contemporary opera performance. Based on a comparative study of audience experiences and behaviours during a live opera performance and the streamed opera screening, we investigate whether digital mediation affects audience appreciation, and whether streaming live opera means the same thing to an audience as the unmediated performance. We firstly outline the conception, design and performance of a contemporary opera and its simultaneous streaming to nearby digital screens. Then, we report the evaluation of the project as measured by a mix of qualitative and quantitative methods during the rehearsals, the live performance and the screening. As one of the few social studies of contemporary classical music in Britain, our study of opera audience behaviours sheds light on the challenges and opportunities afforded by digital technologies for opera companies. Understanding how audiences appreciate digital operas offers practical advice on how theatres and opera companies could respond to new forms of digital activities.

  17. High Speed Wireless Signal Generation and Demodulation

    DEFF Research Database (Denmark)

    Caballero Jambrina, Antonio; Sambaraju, Rakesh; Zibar, Darko

    We present the experimental demonstration of high speed wireless generation, up to 40 Gb/s, in the 75-110 GHz wireless band. All-optical OFDM and photonic up-conversion are used for generation and single side-band modulation with digital coherent detection for demodulation....

  18. The Invention of the Wireless Communication Engine

    NARCIS (Netherlands)

    van der Kooij, B.J.G.

    2017-01-01

    Wireless technology, taken for granted today, was once an innovative wonder that would forever change how the world communicates. Developed by Guglielmo Marconi in the latter half of the nineteenth century, wireless telegraphy combined advancements made by Samuel Morse, William Cooke, Charles

  19. Home and School Technology: Wired versus Wireless.

    Science.gov (United States)

    Van Horn, Royal

    2001-01-01

    Presents results of informal research on smart homes and appliances, structured home wiring, whole-house audio/video distribution, hybrid cable, and wireless networks. Computer network wiring is tricky to install unless all-in-one jacketed cable is used. Wireless phones help installers avoid pre-wiring problems in homes and schools. (MLH)

  20. A guide to wireless networking by light

    Science.gov (United States)

    Haas, Harald; Chen, Cheng; O'Brien, Dominic

    2017-09-01

    The lack of wireless spectrum in the radio frequency bands has led to a rapid growth in research in wireless networking using light, known as LiFi (light fidelity). In this paper an overview of the subsystems, challenges and techniques required to achieve this is presented.

  1. Enabling technologies for wireless e-business

    CERN Document Server

    Kou, Weidong

    2006-01-01

    Provides a coverage of the technologies needed to make wireless e-business effective. This book offers an introduction for both self-study and taught e-business classes or commercial training in e-business and wireless technologies. It explains both industry standards and relevant academic research.

  2. International Conference on Mobile and Wireless Technology

    CERN Document Server

    Wattanapongsakorn, Naruemon; Joukov, Nikolai

    2016-01-01

    This book presents the peer-reviewed contributions of ICMWT2016, an international conference devoted to mobile and wireless technology. Researchers and professionals from academia and industry met to discuss the cutting-edge developments in the field. The book includes papers on mobile and wireless networks, the increasingly important security issues, data management, as well as the latest developments in mobile software development.

  3. Topological properties of random wireless networks

    Indian Academy of Sciences (India)

    Wireless networks in which the node locations are random are best modelled as random geometric graphs (RGGs). In addition to their extensive application in the modelling of wireless networks, RGGs find many new applications and are being studied in their own right. In this paper we first provide a brief introduction to the ...

  4. Kali Linux wireless penetration testing essentials

    CERN Document Server

    Alamanni, Marco

    2015-01-01

    This book is targeted at information security professionals, penetration testers and network/system administrators who want to get started with wireless penetration testing. No prior experience with Kali Linux and wireless penetration testing is required, but familiarity with Linux and basic networking concepts is recommended.

  5. Industrial wireless networking with resource constraint devices

    NARCIS (Netherlands)

    Das, Kallol

    2015-01-01

    During the last decade, wireless technologies have revolutionized the industrial automation sector by enabling wireless sensing and actuation for industrial applications. Most of these recently developed industrial standards are built on top of IEEE802.15.4 interface, which uses 2.4GHz frequency

  6. Challenging Aspects of Terahertz Terabit Wireless Communications

    DEFF Research Database (Denmark)

    Yu, Xianbin; Galili, Michael; Jepsen, Peter Uhd

    The increasing demand on fast wireless communications, e.g. huge data file transferring and mobile broadband access, has driven wireless communication systems into a path towards Terabit era. Terahertz (THz) technology is promising due to its unique features, such as unlimited bandwidth available...

  7. Interference mitigation techniques in wireless communications ...

    African Journals Online (AJOL)

    Co-Channel Interference, Intersymbol interference and fading are major impairment to the high-capacity transmission in power- and band-limited wireless communication channel. This paper presents an overview of interference mitigation techniques in wireless communications systems. Linear filtering, equalization, and ...

  8. Voice over IP in Wireless Heterogeneous Networks

    DEFF Research Database (Denmark)

    Fathi, Hanane; Chakraborty, Shyam; Prasad, Ramjee

    The convergence of different types of traffic has preceded the convergence of systems and services in a wireless heterogeneous network. Voice and data traffic are usually treated separate in both 2G and 2.5G wireless networks. With advances in packet switching technology and especially with the d...... and to the discruption caused by the user mobility during the session. Voice over IP in Wireless Hetetrogeneous Networks thus investigates and proposes cross-layer techniques for realizing time-efficient control mechanisms for VoIP: signaling, mobility and security.......The convergence of different types of traffic has preceded the convergence of systems and services in a wireless heterogeneous network. Voice and data traffic are usually treated separate in both 2G and 2.5G wireless networks. With advances in packet switching technology and especially...... with the deployment of wireless heterogeneous systems, both speech and data traffic are carrried over wireless links by the same IP-based packet-switched infrastructure. However, this combination faces some challenges due to the inherent properties of the wireless network. The requirements for good quality Vo...

  9. European Research towards Future Wireless Communications

    DEFF Research Database (Denmark)

    Frederiksen, Flemming Bjerge; Prasad, Ramjee; Pedersen, Gert Frølund

    2005-01-01

    This paper presents an overview of four on-going European research projects in the field of mobile and wireless communications leading to the next generations of wireless communications. The projects started in 2004. They investigate requirements and definition of access technology, network...... architecture, antennas and propagation, security, services, applications and socio-economic impact....

  10. Technical Challenges Hindering Development of Robust Wireless ...

    African Journals Online (AJOL)

    PROF. OLIVER OSUAGWA

    2015-12-01

    Dec 1, 2015 ... quality. Digital audio broadcasting is also quite popular everywhere. Wireless communications. Network operators have made significant investments in ... distributed control systems, with remote devices, sensors, and actuators linked together via wireless communication channels. Such networks are ...

  11. 60-GHz optical/wireless MIMO system integrated with optical subcarrier multiplexing and 2x2 wireless communication.

    Science.gov (United States)

    Lin, Chi-Hsiang; Lin, Chun-Ting; Huang, Hou-Tzu; Zeng, Wei-Siang; Chiang, Shou-Chih; Chang, Hsi-Yu

    2015-05-04

    This paper proposes a 2x2 MIMO OFDM Radio-over-Fiber scheme based on optical subcarrier multiplexing and 60-GHz MIMO wireless transmission. We also schematically investigated the principle of optical subcarrier multiplexing, which is based on a dual-parallel Mach-Zehnder modulator (DP-MZM). In our simulation result, combining two MIMO OFDM signals to drive DP-MZM gives rise to the PAPR augmentation of less than 0.4 dB, which mitigates nonlinear distortion. Moreover, we applied a Levin-Campello bit-loading algorithm to compensate for the uneven frequency responses in the V-band. The resulting system achieves OFDM signal rates of 61.5-Gbits/s with BER of 10(-3) over 25-km SMF transmission followed by 3-m wireless transmission.

  12. “Enheduanna—A Manifesto of Falling” Live Brain-Computer Cinema Performance: Performer and Audience Participation, Cognition and Emotional Engagement Using Multi-Brain BCI Interaction

    Science.gov (United States)

    Zioga, Polina; Pollick, Frank; Ma, Minhua; Chapman, Paul; Stefanov, Kristian

    2018-01-01

    The fields of neural prosthetic technologies and Brain-Computer Interfaces (BCIs) have witnessed in the past 15 years an unprecedented development, bringing together theories and methods from different scientific fields, digital media, and the arts. More in particular, artists have been amongst the pioneers of the design of relevant applications since their emergence in the 1960s, pushing the boundaries of applications in real-life contexts. With the new research, advancements, and since 2007, the new low-cost commercial-grade wireless devices, there is a new increasing number of computer games, interactive installations, and performances that involve the use of these interfaces, combining scientific, and creative methodologies. The vast majority of these works use the brain-activity of a single participant. However, earlier, as well as recent examples, involve the simultaneous interaction of more than one participants or performers with the use of Electroencephalography (EEG)-based multi-brain BCIs. In this frame, we discuss and evaluate “Enheduanna—A Manifesto of Falling,” a live brain-computer cinema performance that enables for the first time the simultaneous real-time multi-brain interaction of more than two participants, including a performer and members of the audience, using a passive EEG-based BCI system in the context of a mixed-media performance. The performance was realised as a neuroscientific study conducted in a real-life setting. The raw EEG data of seven participants, one performer and two different members of the audience for each performance, were simultaneously recorded during three live events. The results reveal that the majority of the participants were able to successfully identify whether their brain-activity was interacting with the live video projections or not. A correlation has been found between their answers to the questionnaires, the elements of the performance that they identified as most special, and the audience's indicators

  13. "Enheduanna-A Manifesto of Falling" Live Brain-Computer Cinema Performance: Performer and Audience Participation, Cognition and Emotional Engagement Using Multi-Brain BCI Interaction.

    Science.gov (United States)

    Zioga, Polina; Pollick, Frank; Ma, Minhua; Chapman, Paul; Stefanov, Kristian

    2018-01-01

    The fields of neural prosthetic technologies and Brain-Computer Interfaces (BCIs) have witnessed in the past 15 years an unprecedented development, bringing together theories and methods from different scientific fields, digital media, and the arts. More in particular, artists have been amongst the pioneers of the design of relevant applications since their emergence in the 1960s, pushing the boundaries of applications in real-life contexts. With the new research, advancements, and since 2007, the new low-cost commercial-grade wireless devices, there is a new increasing number of computer games, interactive installations, and performances that involve the use of these interfaces, combining scientific, and creative methodologies. The vast majority of these works use the brain-activity of a single participant. However, earlier, as well as recent examples, involve the simultaneous interaction of more than one participants or performers with the use of Electroencephalography (EEG)-based multi-brain BCIs. In this frame, we discuss and evaluate "Enheduanna-A Manifesto of Falling," a live brain-computer cinema performance that enables for the first time the simultaneous real-time multi-brain interaction of more than two participants, including a performer and members of the audience, using a passive EEG-based BCI system in the context of a mixed-media performance. The performance was realised as a neuroscientific study conducted in a real-life setting. The raw EEG data of seven participants, one performer and two different members of the audience for each performance, were simultaneously recorded during three live events. The results reveal that the majority of the participants were able to successfully identify whether their brain-activity was interacting with the live video projections or not. A correlation has been found between their answers to the questionnaires, the elements of the performance that they identified as most special, and the audience's indicators of

  14. “Enheduanna—A Manifesto of Falling” Live Brain-Computer Cinema Performance: Performer and Audience Participation, Cognition and Emotional Engagement Using Multi-Brain BCI Interaction

    Directory of Open Access Journals (Sweden)

    Polina Zioga

    2018-04-01

    Full Text Available The fields of neural prosthetic technologies and Brain-Computer Interfaces (BCIs have witnessed in the past 15 years an unprecedented development, bringing together theories and methods from different scientific fields, digital media, and the arts. More in particular, artists have been amongst the pioneers of the design of relevant applications since their emergence in the 1960s, pushing the boundaries of applications in real-life contexts. With the new research, advancements, and since 2007, the new low-cost commercial-grade wireless devices, there is a new increasing number of computer games, interactive installations, and performances that involve the use of these interfaces, combining scientific, and creative methodologies. The vast majority of these works use the brain-activity of a single participant. However, earlier, as well as recent examples, involve the simultaneous interaction of more than one participants or performers with the use of Electroencephalography (EEG-based multi-brain BCIs. In this frame, we discuss and evaluate “Enheduanna—A Manifesto of Falling,” a live brain-computer cinema performance that enables for the first time the simultaneous real-time multi-brain interaction of more than two participants, including a performer and members of the audience, using a passive EEG-based BCI system in the context of a mixed-media performance. The performance was realised as a neuroscientific study conducted in a real-life setting. The raw EEG data of seven participants, one performer and two different members of the audience for each performance, were simultaneously recorded during three live events. The results reveal that the majority of the participants were able to successfully identify whether their brain-activity was interacting with the live video projections or not. A correlation has been found between their answers to the questionnaires, the elements of the performance that they identified as most special, and the

  15. Bringing in the target audience in bystander social marketing materials for communities: suggestions for practitioners.

    Science.gov (United States)

    Potter, Sharyn J; Stapleton, Jane G

    2011-06-01

    The Know Your Power™ social marketing campaign images model active bystander behaviors that target audience members can use in situations where sexual and relationship violence and stalking are occurring, have occurred, or have the potential to occur. In this practitioner note, we describe strategies that we have used to engage target audience members in the development of the social marketing campaign that we hope can be used by practitioners. We give examples from the development and evaluation of the Know Your Power(TM) social marketing campaign that used focus group and other types of feedback from the target audience to inform the direction of the campaign.

  16. Developing Public Health Initiatives through Understanding Motivations of the Audience at Mass-Gathering Events.

    Science.gov (United States)

    Hutton, Alison; Ranse, Jamie; Munn, Matthew Brendan

    2018-04-01

    This report identifies what is known about audience motivations at three different mass-gathering events: outdoor music festivals, religious events, and sporting events. In light of these motivations, the paper discusses how these can be harnessed by the event organizer and Emergency Medical Services. Lastly, motivations tell what kinds of interventions can be used to achieve an understanding of audience characteristics and the opportunity to develop tailor-made programs to maximize safety and make long-lasting public health interventions to a particular "cohort" or event population. A lot of these will depend on what the risks/hazards are with the particular populations in order to "target" them with public health interventions. Audience motivations tell the event organizer and Emergency Medical Services about the types of behaviors they should expect from the audience and how this may affect their health while at the event. Through these understandings, health promotion and event safety messages can be developed for a particular type of mass-gathering event based on the likely composition of the audience in attendance. Health promotion and providing public information should be at the core of any mass-gathering event to minimize public health risk and to provide opportunities for the promotion of healthy behaviors in the local population. Audience motivations are a key element to identify and agree on what public health information is needed for the event audience. A more developed understanding of audience behavior provides critical information for event planners, event risk managers, and Emergency Medical Services personnel to better predict and plan to minimize risk and reduce patient presentations at events. Mass-gathering event organizers and designers intend their events to be positive experiences and to have meaning for those who attend. Therefore, continual vigilance to improve public health effectiveness and efficiency can become best practice at events

  17. An Improved Wireless Battery Charging System

    Directory of Open Access Journals (Sweden)

    Woo-Seok Lee

    2018-03-01

    Full Text Available This paper presents a direct wireless battery charging system. The output current of the series-series compensated wireless power transfer (SS-WPT system is used as a current source, and the output voltage of AC-DC converter controls the current source. Therefore, the proposed wireless battery charging system needs no battery charging circuit to carry out charging profiles, and can solve space constraints and thermal problems in many battery applications. In addition, the proposed wireless battery charging system can implement easily most other charging profiles. In this paper, the proposed wireless battery charging system is implemented and the feasibility is verified experimentally according to constant-current constant-voltage charging profile or multi-step current charging profile.

  18. Filtering and control of wireless networked systems

    CERN Document Server

    Zhang, Dan; Yu, Li

    2017-01-01

    This self-contained book, written by leading experts, offers a cutting-edge, in-depth overview of the filtering and control of wireless networked systems. It addresses the energy constraint and filter/controller gain variation problems, and presents both the centralized and the distributed solutions. The first two chapters provide an introduction to networked control systems and basic information on system analysis. Chapters (3–6) then discuss the centralized filtering of wireless networked systems, presenting different approaches to deal with energy efficiency and filter/controller gain variation problems. The next part (chapters 7–10) explores the distributed filtering of wireless networked systems, addressing the main problems of energy constraint and filter gain variation. The final part (chapters 11–14) focuses on the distributed control of wireless networked systems. wireless networked systems for communication and control applications, the bo...

  19. Voice Quality Estimation in Wireless Networks

    Directory of Open Access Journals (Sweden)

    Petr Zach

    2015-01-01

    Full Text Available This article deals with the impact of Wireless (Wi-Fi networks on the perceived quality of voice services. The Quality of Service (QoS metrics must be monitored in the computer network during the voice data transmission to ensure proper voice service quality the end-user has paid for, especially in the wireless networks. In addition to the QoS, research area called Quality of Experience (QoE provides metrics and methods for quality evaluation from the end-user’s perspective. This article focuses on a QoE estimation of Voice over IP (VoIP calls in the wireless networks using network simulator. Results contribute to voice quality estimation based on characteristics of the wireless network and location of a wireless client.

  20. Advanced Signal Processing for Wireless Multimedia Communications

    Directory of Open Access Journals (Sweden)

    Xiaodong Wang

    2000-01-01

    Full Text Available There is at present a worldwide effort to develop next-generation wireless communication systems. It is envisioned that many of the future wireless systems will incorporate considerable signal-processing intelligence in order to provide advanced services such as multimedia transmission. In general, wireless channels can be very hostile media through which to communicate, due to substantial physical impediments, primarily radio-frequency interference and time-arying nature of the channel. The need of providing universal wireless access at high data-rate (which is the aim of many merging wireless applications presents a major technical challenge, and meeting this challenge necessitates the development of advanced signal processing techniques for multiple-access communications in non-stationary interference-rich environments. In this paper, we present some key advanced signal processing methodologies that have been developed in recent years for interference suppression in wireless networks. We will focus primarily on the problem of jointly suppressing multiple-access interference (MAI and intersymbol interference (ISI, which are the limiting sources of interference for the high data-rate wireless systems being proposed for many emerging application areas, such as wireless multimedia. We first present a signal subspace approach to blind joint suppression of MAI and ISI. We then discuss a powerful iterative technique for joint interference suppression and decoding, so-called Turbo multiuser detection, that is especially useful for wireless multimedia packet communications. We also discuss space-time processing methods that employ multiple antennas for interference rejection and signal enhancement. Finally, we touch briefly on the problems of suppressing narrowband interference and impulsive ambient noise, two other sources of radio-frequency interference present in wireless multimedia networks.

  1. Impact of wireless link quality across communication layers

    NARCIS (Netherlands)

    Zhou, J.

    2010-01-01

    Nowadays, wireless networks are used in most of the applications with radio technologies being used in all kinds of wireless networks. In all wireless links, the transmitted packets can be lost. How to identify the quality of a certain wireless link and achieve the best delivery performance over a

  2. Capacity Limit, Link Scheduling and Power Control in Wireless Networks

    Science.gov (United States)

    Zhou, Shan

    2013-01-01

    The rapid advancement of wireless technology has instigated the broad deployment of wireless networks. Different types of networks have been developed, including wireless sensor networks, mobile ad hoc networks, wireless local area networks, and cellular networks. These networks have different structures and applications, and require different…

  3. Wireless Chemical Sensor and Sensing Method for Use Therewith

    Science.gov (United States)

    Woodard, Stanley E. (Inventor); Oglesby, Donald M. (Inventor); Taylor, Bryant D. (Inventor)

    2016-01-01

    A wireless chemical sensor includes an electrical conductor and a material separated therefrom by an electric insulator. The electrical conductor is an unconnected open-circuit shaped for storage of an electric field and a magnetic field. In the presence of a time-varying magnetic field, the first electrical conductor resonates to generate harmonic electric and magnetic field responses. The material is positioned at a location lying within at least one of the electric and magnetic field responses so-generated. The material changes in electrical conductivity in the presence of a chemical-of-interest.

  4. AUDIENCE PERCEPTIONS AND ATTITUDES ON MEDIA COVERAGE OF HIV AND AIDS PANDEMIC IN LIMPOPO PROVINCE, SOUTH AFRICA

    Directory of Open Access Journals (Sweden)

    C. M. Mbajiorgu

    2016-01-01

    Full Text Available South Africa has the highest HIV and AIDS prevalence in the world despite theefforts by all stakeholders to mitigate its spread and start reversing the rate of newinfections. It is also evident that the general public depend on the media for theirinformation and educational needs concerning the disease. However, HIV andAIDS prevalence rate is still very high in Limpopo province. The HIV and AIDSincidence rate is equally high in South Africa, as well as in the Limpopo province.This study investigates audience perceptions and attitudes towards mediacoverage of the HIV and AIDS and factors fuelling the pandemic in the province.A detailed questionnaire was used to collect data from residents of Bochum inCapricorn District, Thohoyandou in Vhembe district, Phalaborwa in Mopanidistrict, and Jane-Furse in Sekhukhune district of the Limpopo province. Thestudy indicated that most residents in the province have positive perceptions aboutmedia coverage of the pandemic. In spite of the extensive media coverage, theirattitudinal responses were not quite encouraging. The study highlighted that themajor factors influencing audience attitudinal response to media coverage of thepandemic include: poverty, rape, Sexually Transmitted Diseases (STDs, alcoholand drugs, and unplanned teenage pregnancy. This study recommends that anyHIV and AIDS mitigation strategy in the province should take into consideration the aforementionedfactors and that the media should consistently and adequatelyreport on the pandemic as one of the development challenges of the province.

  5. Foundations of wireless and electronics

    CERN Document Server

    Scroggie, M G

    1984-01-01

    Foundations of Wireless and Electronics, 10th Edition covers the cathode-ray and microwave tubes; modern pulse methods; f.m. detectors; basic processes of transmission; and reception, computers, and non-sinusoidal signal amplification. The book starts by giving a general overview of a complete electronic system, electricity and circuits, capacitance, and inductance. The text also discusses alternating currents (a.c.), including the frequency and phase of a.c.; the capacitance and inductance in a.c. circuits; and the capacitance and inductance in a series. Diodes, triode, transistor equivalent

  6. Wireless power transfer via radiowaves

    CERN Document Server

    Shinohara , Naoki

    2014-01-01

    Recent advances in Wireless Power Transmission (WPT) technologies have enabled various engineering applications with potential product implementation. WPT can be utilized to charge batteries in various pieces of equipment without the need for a wired connection. Energy can be harvested from ambient RF and microwave radiation and 1 million kW microwaves can be transmitted from space to the ground.This book covers all the theory and technologies of WPT, such as microwave generators with semi-conductors and microwave tubes, antennas, phased arrays, beam efficiency, and rectifiers (rectenna). The

  7. WMSA for wireless communication applications

    Energy Technology Data Exchange (ETDEWEB)

    Vats, Monika; Agarwal, Alok, E-mail: alokagarwal26@yahoo.com; Kumar, Ravindra [Dept. of Electronics & Electrical Engineering, Lingaya’s University Faridabad (India)

    2016-03-09

    Modified rectangular compact microstrip patch antenna having finite ground plane is proposed in this paper. Wideband Microstrip Antenna (WMSA) is achieved by corner cut and inserting air gaps inside the edges of the radiating patch having finite ground plane. The obtained impedance bandwidth for 10 dB return loss for the operating frequency f{sub 0} = 2.09 GHz is 28.7 % (600 MHz), which is very high as compared to the bandwidth obtained for the conventional microstrip antenna. Compactness with wide bandwidth of this antenna is practically useful for the wireless communication systems.

  8. Scholars in an Increasingly Open and Digital World: Imagined Audiences and Their Impact on Scholars' Online Participation

    Science.gov (United States)

    Veletsianos, George; Shaw, Ashley

    2018-01-01

    This study investigates the audiences that scholars imagine encountering online and the ways in which these audiences impact scholars' online participation and presentation of self. Prior research suggests that imagined audiences affect what users share and how they present themselves on social media, but little research has examined this topic in…

  9. From the Moon: Bringing Space Science to Diverse Audiences

    Science.gov (United States)

    Runyon, C. J.; Hall, C.; Joyner, E.; Meyer, H. M.; M3 Science; E/PO Team

    2011-12-01

    -hour graduate credit course. Through these courses, teachers from a variety of disciplines and grade levels journey to the Moon, exploring NASA's historic and current missions and data. As both of these courses are primarily online, we incorporate interactive ways for educators to explore and communicate their ideas. Through a series of scaffolded webquests, educators work through inquiry-oriented lessons to gather information and data directly through the Internet. The webquests allow students to freely explore, motivating them to investigate open-ended questions and enhance their self-learning process. III) To address more diverse audiences, a unique partnership among the College of Charleston's School of Science and Math and the School of the Arts will showcase a two-year celebration of lunar observations and analyses. From the Moon: Mapping and Exploration will open in November, 2011. From the Moon: Mysteries and Myths exhibit at the Halsey Gallery of Art in Charleston, SC will open in Fall, 2013. Patrons will explore one-of-a-kind artifacts, as well as early observations from Galileo to current observations from ongoing NASA lunar missions. Both exhibits will be paired with tactile activities, lesson plans and professional development opportunities.

  10. 'It really is a craft' - Repertoires in journalistic frontrunners' talk on audience participation

    NARCIS (Netherlands)

    Borger, M.; Costera Meijer, I.; Hoof, A. van; Sanders, J.M.

    2013-01-01

    Studies of participatory journalism demonstrate that professional journalism can be resistant to change. Journalists and news organizations do wish to encourage audience contribution and digital innovation, but find it difficult to reconcile traditional journalistic values and practices with more

  11. Authority and Audience-Centered Writing Strategies: Sexism in 19th-Century Sewing Machine Manuals.

    Science.gov (United States)

    Durack, Katherine T.

    1998-01-01

    Examines audience-centered writing strategies in two early sewing machine manuals. Considers the difference between non-sexist and gender-neutral writing. Concludes that avoiding sexism in technical writing may sometimes be impossible. (PA)

  12. Millennial fandom: Television audiences in the transmedia age, by Louisa Ellen Stein [book review

    Directory of Open Access Journals (Sweden)

    Helena Louise Dare-Edwards

    2016-09-01

    Full Text Available Review of Louisa Ellen Stein, Millennial fandom: Television audiences in the transmedia age. Iowa City: University of Iowa Press, 2015, paperback, $24 (224p ISBN 978-1609383558; e-book, $24, ISBN 978-1609383565.

  13. “It really is a craft” Repertoires in journalistic frontrunners’ talk on audience participation

    NARCIS (Netherlands)

    Borger, M.; Costera Meijer, I.; van Hoof, A.M.J.; Sanders, J.

    2013-01-01

    Studies of participatory journalism demonstrate that professional journalism can be resistant to change. Journalists and news organizations do wish to encourage audience contribution and digital innovation, but find it difficult to reconcile traditional journalistic values and practices with more

  14. “It really is a craft” - Repertoires in journalistic frontrunners’ talk on audience participation

    NARCIS (Netherlands)

    Borger, M.; Costera Meijer, I.; Hoof, A. van; Sanders, J.M.

    2013-01-01

    Studies of participatory journalism demonstrate that professional journalism can be resistant to change. Journalists and news organizations do wish to encourage audience contribution and digital innovation, but find it difficult to reconcile traditional journalistic values and practices with more

  15. A Reception Analysis on the Youth Audiences of TV Series in Marivan

    Directory of Open Access Journals (Sweden)

    Omid Karimi

    2014-03-01

    Full Text Available The aim of this article is to describe the role of foreign media as the agitators of popular culture. For that with reception analysis it’s pay to describe decoding of youth audiences about this series. Globalization theory and Reception in Communication theory are formed the theoretical system of current article. The methodology in this research is qualitative one, and two techniques as in-depth interview and observation are used for data collection. The results show different people based on individual features, social and cultural backgrounds have inclination toward special characters and identify with them. This inclination so far the audience fallow the series because of his/her favorite character. Also there is a great compatibility between audience backgrounds and their receptions. A number of audience have criticized the series and point out the negative consequences on its society. However, seeing the series continue; really they prefer watching series enjoying to risks of it.

  16. Give Me a Like: How HIV/AIDS Nonprofit Organizations Can Engage Their Audience on Facebook.

    Science.gov (United States)

    Huang, Yu-Chao; Lin, Yi-Pin; Saxton, Gregory D

    2016-12-01

    With the rapid proliferation and adoption of social media among healthcare professionals and organizations, social media-based HIV/AIDS intervention programs have become increasingly popular. However, the question of the effectiveness of the HIV/AIDS messages disseminated on social media has received scant attention in the literature. The current study applies content analysis to examine the relationship between Facebook messaging strategies employed by 110 HIV/AIDS nonprofit organizations and audience reactions in the form of liking, commenting, and sharing behavior. The results reveal that HIV/AIDS nonprofit organizations often use informational messages as one-way communication with their audience instead of dialogic interactions. Some specific types of messages, such as medication-focused messages, engender better audience engagement; in contrast, event-related messages and call-to-action messages appear to translate into lower corresponding audience reactions. The findings provide guidance to HIV/AIDS organizations in developing effective social media communication strategies.

  17. Accurate measurement of RF exposure from emerging wireless communication systems

    International Nuclear Information System (INIS)

    Letertre, Thierry; Toffano, Zeno; Monebhurrun, Vikass

    2013-01-01

    Isotropic broadband probes or spectrum analyzers (SAs) may be used for the measurement of rapidly varying electromagnetic fields generated by emerging wireless communication systems. In this paper this problematic is investigated by comparing the responses measured by two different isotropic broadband probes typically used to perform electric field (E-field) evaluations. The broadband probes are submitted to signals with variable duty cycles (DC) and crest factors (CF) either with or without Orthogonal Frequency Division Multiplexing (OFDM) modulation but with the same root-mean-square (RMS) power. The two probes do not provide accurate enough results for deterministic signals such as Worldwide Interoperability for Microwave Access (WIMAX) or Long Term Evolution (LTE) as well as for non-deterministic signals such as Wireless Fidelity (WiFi). The legacy measurement protocols should be adapted to cope for the emerging wireless communication technologies based on the OFDM modulation scheme. This is not easily achieved except when the statistics of the RF emission are well known. In this case the measurement errors are shown to be systematic and a correction factor or calibration can be applied to obtain a good approximation of the total RMS power.

  18. A vibration powered wireless mote on the Forth Road Bridge

    International Nuclear Information System (INIS)

    Jia, Yu; Yan, Jize; Feng, Tao; Du, Sijun; Fidler, Paul; Soga, Kenichi; Middleton, Campbell; Seshia, Ashwin A

    2015-01-01

    The conventional resonant-approaches to scavenge kinetic energy are typically confined to narrow and single-band frequencies. The vibration energy harvester device reported here combines both direct resonance and parametric resonance in order to enhance the power responsiveness towards more efficient harnessing of real-world ambient vibration. A packaged electromagnetic harvester designed to operate in both of these resonant regimes was tested in situ on the Forth Road Bridge. In the field-site, the harvester, with an operational volume of ∼126 cm 3 , was capable of recovering in excess of 1 mW average raw AC power from the traffic-induced vibrations in the lateral bracing structures underneath the bridge deck. The harvester was integrated off-board with a power conditioning circuit and a wireless mote. Duty- cycled wireless transmissions from the vibration-powered mote was successfully sustained by the recovered ambient energy. This limited duration field test provides the initial validation for realising vibration-powered wireless structural health monitoring systems in real world infrastructure, where the vibration profile is both broadband and intermittent. (paper)

  19. A vibration powered wireless mote on the Forth Road Bridge

    Science.gov (United States)

    Jia, Yu; Yan, Jize; Feng, Tao; Du, Sijun; Fidler, Paul; Soga, Kenichi; Middleton, Campbell; Seshia, Ashwin A.

    2015-12-01

    The conventional resonant-approaches to scavenge kinetic energy are typically confined to narrow and single-band frequencies. The vibration energy harvester device reported here combines both direct resonance and parametric resonance in order to enhance the power responsiveness towards more efficient harnessing of real-world ambient vibration. A packaged electromagnetic harvester designed to operate in both of these resonant regimes was tested in situ on the Forth Road Bridge. In the field-site, the harvester, with an operational volume of ∼126 cm3, was capable of recovering in excess of 1 mW average raw AC power from the traffic-induced vibrations in the lateral bracing structures underneath the bridge deck. The harvester was integrated off-board with a power conditioning circuit and a wireless mote. Duty- cycled wireless transmissions from the vibration-powered mote was successfully sustained by the recovered ambient energy. This limited duration field test provides the initial validation for realising vibration-powered wireless structural health monitoring systems in real world infrastructure, where the vibration profile is both broadband and intermittent.

  20. Optimization of Passive Low Power Wireless Electromagnetic Energy Harvesters

    Directory of Open Access Journals (Sweden)

    Dario Grgić

    2012-10-01

    Full Text Available This work presents the optimization of antenna captured low power radio frequency (RF to direct current (DC power converters using Schottky diodes for powering remote wireless sensors. Linearized models using scattering parameters show that an antenna and a matched diode rectifier can be described as a form of coupled resonator with different individual resonator properties. The analytical models show that the maximum voltage gain of the coupled resonators is mainly related to the antenna, diode and load (remote sensor resistances at matched conditions or resonance. The analytical models were verified with experimental results. Different passive wireless RF power harvesters offering high selectivity, broadband response and high voltage sensitivity are presented. Measured results show that with an optimal resistance of antenna and diode, it is possible to achieve high RF to DC voltage sensitivity of 0.5 V and efficiency of 20% at −30 dBm antenna input power. Additionally, a wireless harvester (rectenna is built and tested for receiving range performance.