Science.gov

Sample records for digital media system

  1. Streaming the Archives: Repurposing Systems to Advance a Small Media Digitization and Dissemination Program

    ERIC Educational Resources Information Center

    Anderson, Talea

    2015-01-01

    In 2013-2014, Brooks Library at Central Washington University (CWU) launched library content in three systems: a digital asset-management system, an institutional repository (IR), and a web-based discovery layer. In early 2014, the archives at the library began to use these systems to disseminate media recently digitized from legacy formats. As…

  2. Writing and Digital Media

    ERIC Educational Resources Information Center

    van Waes, Luuk, Ed.; Leijten, Marielle, Ed.; Neuwirth, Chris, Ed.

    2006-01-01

    Digital media has become an increasingly powerful force in modern society. This volume brings together outstanding European, American and Australian research in "writing and digital media" and explores its cognitive, social and cultural implications. In addition to presenting programs of original research by internationally known scholars from a…

  3. Digital Media and Learning

    ERIC Educational Resources Information Center

    John D. and Catherine T. MacArthur Foundation, 2012

    2012-01-01

    MacArthur launched the digital media and learning initiative in 2006 to explore how digital media are changing the way young people learn, socialize, communicate, and play. Since 2006, the Foundation has awarded grants totaling more than $100 million for research, development of innovative new technologies, new learning environments for youth,…

  4. Digital Media Stories for Persuasion

    ERIC Educational Resources Information Center

    Leopold, Lisa

    2010-01-01

    Digital media story-telling (which enhances traditional oral story-telling with images, music, and text) has been a focus of recent scholarship for its potential to produce numerous educational benefits. Through digital media storytelling, students' imagination, creativity, critical thinking, writing, public speaking, and organizational or…

  5. Digital Media and Emergent Literacy

    ERIC Educational Resources Information Center

    Hisrich, Katy; Blanchard, Jay

    2009-01-01

    This article discusses digital media and its potential effects on emergent literacy skills development for young children. While the impact of digital media exposure on children's emergent literacy development is largely unknown, it is becoming a significant issue, as more and more young children throughout the world observe and use various forms…

  6. Morf - Towards Next Generation Digital Media Management

    SciTech Connect

    Almquist, Justin P.; Connell, Linda M.; Johns, Zoe C.; Dillon, Heather E.; Elliott, Geoffrey

    2005-07-27

    The Morf project is developing next generation digital media management technologies by incorporating features of traditional systems such as digital libraries, knowledge bases, and content management systems. In particular, Morf supports fine-grained content management by allowing text, graphics, or any media to be reused throughout the system, which creates for a ?change once, permeate everywhere? environment. Additionally, Morf provides searching and browsing capabilities of multiple media types across internal and external content. This paper describes the requirements, design, and implementation of Morf and presents three web tools currently driven by the Morf platform.

  7. iD PHOTO SystemDigital Photo Media for Still Cameras—

    NASA Astrophysics Data System (ADS)

    Watanabe, Hiroshi; Ichiura, Syuichi; Kawakami, Kouichi

    2001-03-01

    We developed a 50-mm-diameter magnetooptical disk system, iD PHOTO as a next-generation system for digital still cameras. The iD PHOTO system is based on the advanced storage magneto optical disk (AS-MO) standard, \\cite{rf1,rf2,rf3,rf4} and its media has a maximum capacity of 730 MB on a 50-mm-diameter single-sided disk, which exceeds the compact disc (CD) capacity, while being the world’s smallest 5 rewritable optical disk. Using this system, it is possible to rewrite data at a high speed of more than 20 Mbps over one million times and moreover, it is suitable for saving data over long periods. Employing the magnetic field modulation (MFM) recording method and the center-aperture-detection (CAD)-type magnetic superresolution (MSR) readout method, the iD PHOTO system realizes high-density recording. The non return to zero inverted plus (NRZI+) modulation and the external clocking system enable high-capacity user data. Finally, we show that the read and write characteristics, which are sufficient for realizing a stable system, are obtained using external clocking and the CAD-type MSR readout method.

  8. Digital Booktalk: Digital Media for Reluctant Readers

    ERIC Educational Resources Information Center

    Gunter, Glenda; Kenny, Robert

    2008-01-01

    New learning and communications paradigms of today's learners are extending the definition of literacy and directly affecting how reading and writing skills are acquired (Leu, 2000). Mirroring an ever-expanding definition of literacy, new college and K-12 curricular programs that redefine digital media are popping up all over the country. Story is…

  9. Developing a Cross-Media System to Facilitate Question-Driven Digital Annotations on Paper Textbooks

    ERIC Educational Resources Information Center

    Chao, Po-Yao; Chen, Gwo-Dong; Chang, Chih-Wei

    2010-01-01

    Research on note taking in pedagogical settings has received considerable attention. However, the awkwardness of integrating information across different media formats may present physical and cognitive barriers that prevent students from effectively organizing annotations from both printed and digital content while studying paper textbooks. The…

  10. Methods, media and systems for managing a distributed application running in a plurality of digital processing devices

    DOEpatents

    Laadan, Oren; Nieh, Jason; Phung, Dan

    2012-10-02

    Methods, media and systems for managing a distributed application running in a plurality of digital processing devices are provided. In some embodiments, a method includes running one or more processes associated with the distributed application in virtualized operating system environments on a plurality of digital processing devices, suspending the one or more processes, and saving network state information relating to network connections among the one or more processes. The method further include storing process information relating to the one or more processes, recreating the network connections using the saved network state information, and restarting the one or more processes using the stored process information.

  11. Play and Digital Media

    ERIC Educational Resources Information Center

    Johnson, James E.; Christie, James F.

    2009-01-01

    This article examines how play is affected by computers and digital toys. Research indicates that when computer software targeted at children is problem-solving oriented and open-ended, children tend to engage in creative play and interact with peers in a positive manner. On the other hand, drill-and-practice programs can be quite boring and limit…

  12. Digital Neural Networks for New Media

    NASA Astrophysics Data System (ADS)

    Spaanenburg, Lambert; Malki, Suleyman

    Neural Networks perform computationally intensive tasks offering smart solutions for many new media applications. A number of analog and mixed digital/analog implementations have been proposed to smooth the algorithmic gap. But gradually, the digital implementation has become feasible, and the dedicated neural processor is on the horizon. A notable example is the Cellular Neural Network (CNN). The analog direction has matured for low-power, smart vision sensors; the digital direction is gradually being shaped into an IP-core for algorithm acceleration, especially for use in FPGA-based high-performance systems. The chapter discusses the next step towards a flexible and scalable multi-core engine using Application-Specific Integrated Processors (ASIP). This topographic engine can serve many new media tasks, as illustrated by novel applications in Homeland Security. We conclude with a view on the CNN kaleidoscope for the year 2020.

  13. Young Children's Learning with Digital Media

    ERIC Educational Resources Information Center

    Lieberman, Debra A.; Bates, Cynthia H.; So, Jiyeon

    2009-01-01

    This article reviews a selection of studies on digital media and learning for young children ages 3 to 6. The range of digital media for this age group is growing and includes computer-delivered and online activities; console video games; handheld media, occasionally with GPS or an accelerometer, in cell phones and other wireless mobile devices;…

  14. Methods, media, and systems for detecting attack on a digital processing device

    DOEpatents

    Stolfo, Salvatore J.; Li, Wei-Jen; Keromylis, Angelos D.; Androulaki, Elli

    2014-07-22

    Methods, media, and systems for detecting attack are provided. In some embodiments, the methods include: comparing at least part of a document to a static detection model; determining whether attacking code is included in the document based on the comparison of the document to the static detection model; executing at least part of the document; determining whether attacking code is included in the document based on the execution of the at least part of the document; and if attacking code is determined to be included in the document based on at least one of the comparison of the document to the static detection model and the execution of the at least part of the document, reporting the presence of an attack. In some embodiments, the methods include: selecting a data segment in at least one portion of an electronic document; determining whether the arbitrarily selected data segment can be altered without causing the electronic document to result in an error when processed by a corresponding program; in response to determining that the arbitrarily selected data segment can be altered, arbitrarily altering the data segment in the at least one portion of the electronic document to produce an altered electronic document; and determining whether the corresponding program produces an error state when the altered electronic document is processed by the corresponding program.

  15. Advances in digital video for electronic media.

    PubMed

    McAfooes, J A

    1997-01-01

    From media's early days of film strips and records, to today's multimedia CD-ROMs, nurses have embraced educational tools. Today, the capabilities of these tools have placed a tremendous demand for providing information any time, any where. This has led to increasing digitization of sights and sounds. Once digitized, this information can travel over information highways made up of telephone lines, fiberoptic cables, microwaves and satellites, or it can be stored on magnetic and optical media. Technological advances have made it possible for computer users to create, store and retrieve high quality digital still and moving video and audio for inclusion in electronic media. Methods for digitizing include capturing and converting the information with cameras, scanners and capture boards. Digital video compression/decompression (codec) standards vary in quality. Potential uses of digital video abound including video on demand, videoconferencing, distance learning, telemedicine, on-line education and computer-based training. Examples illustrating the differences in digital video formats will be shown during the presentation. PMID:10175444

  16. Are Digital Media Changing Language?

    ERIC Educational Resources Information Center

    Baron, Naomi S.

    2009-01-01

    Are instant messaging and text messaging killing language? To hear what the popular media say, a handful of OMGs (oh my Gods) and smiley faces, along with a paucity of capital letters and punctuation marks, might be bringing English to its knees. Although journalists tend to sensationalize the linguistic strangeness of "online lingo," quantitative…

  17. Digital reverse propagation in focusing Kerr media

    SciTech Connect

    Goy, Alexandre; Psaltis, Demetri

    2011-03-15

    Lenses allow the formation of clear images in homogeneous linear media. Holography is an alternative imaging method, but its use is limited to cases in which it provides an advantage, such as three-dimensional imaging. In nonlinear media, lenses no longer work. The light produces intensity-dependent aberrations. The reverse propagation method used in digital holography to form images from recorded holograms works even in Kerr media [M. Tsang, D. Psaltis, and F. G. Omenetto, Opt. Lett. 28, 1873 (2003).]. The principle has been experimentally demonstrated recently in defocusing media [C. Barsi, W.Wan, and J.W. Fleischer, Nat. Photonics 3, 211 (2009).]. Here, we report experimental results in focusing media.

  18. Empowering Learners with Digital and Media Literacy

    ERIC Educational Resources Information Center

    Hobbs, Renee

    2011-01-01

    School librarians and teachers are working together in a national movement to bring digital and media literacy to all citizens. When people think of the term "literacy," what generally springs to mind is reading and writing, speaking and listening. These are foundational elements of literacy. But because people use so many different types of…

  19. Digital Storytelling: Expanding Media Possibilities for Learning

    ERIC Educational Resources Information Center

    McLellan, Hilary, Ed.

    2008-01-01

    Stories offer a powerful framework for engagement, reflection, and other important skills that young people need to learn. As digital media have expanded, so have the possibilities for creating stories. Here, several examples of those new possibilities are examined, examples that highlight student-produced online broadcasting initiatives,…

  20. Digital Media Ethics in the Writing Classroom

    ERIC Educational Resources Information Center

    Coley, Toby Franklin

    2011-01-01

    With increasing awareness, digital media initiatives on a national level have permeated higher education. The permeation continues into the first year writing classroom. Neal Postman (1996) has argued that no one has taken up the call to implement new technologies with greater enthusiasm than the educator. Many writing educators believe that…

  1. Digital communication systems

    NASA Astrophysics Data System (ADS)

    Peebles, Peyton Z., Jr.

    The fundamental principles of digital communication and the design of practical digital communication systems are explored in an introductory textbook for senior and graduate students of electrical engineering. Chapters are devoted to sampling principles, baseband digital waveforms, baseband digital systems, bandpass binary digital systems, and M-ary digital systems. Deterministic signals, networks, and random-signal theory are reviewed in extensive appendices, and graphs, flow charts, diagrams, and problems are provided.

  2. Youth and digital media: a policy research agenda.

    PubMed

    Montgomery, K

    2000-08-01

    At a time when researchers are still sorting out the complex relationship between adolescents and the mass media, the entire nature of the media system is undergoing dramatic change. The explosive growth of the Internet is ushering in a new digital media culture. Youth are embracing the new technologies much more rapidly than adults. In addition, because of their increased spending power, youth have become a valuable target market for advertisers. These trends have spurred the proliferation of Web sites and other forms of new-media content specifically designed for teens and children. The burgeoning digital marketplace has spawned a new generation of market research companies, and market research on children and youth is outpacing academic research on youth and the newer media. The emergence of this new media culture holds both promise and peril for youth. Whether the positive or negative vision of the digital future prevails will be determined, in large part, by decisions being made now and in the next few years in the halls of government and in corporate boardrooms. Research has contributed to the resolutions of several recent legislative and policy decisions in areas including television violence and the V-chip, children's educational television programming, and privacy and marketing to children on the Web. Future research needs to be designed with the public policy agenda in mind. The academic community has much to contribute to the debates over new developments in the digital age. PMID:10904209

  3. [Psychological impact of the new digital media].

    PubMed

    Te Wildt, B T

    2004-10-01

    This review article starts from the hypothesis that the new digital media's impact on people's mental health, which in professional and private everyday life has become increasingly frequent and intense, is widely underestimated. The disturbances associated with media exposure, which have been already described and examined, are presented and discussed, while classifying them in three groups of disorders, namely dissocial, dissociative and impulse control disorders. In a second step, psychotherapeutic and psychiatric applications of the digital media are presented, especially, psychometric and neuropsychological testing, distribution of information and behavioral therapeutic tools. The positive and negative effects of the internet and cyberspace are applied to the multicausal understanding of the genesis and therapy of mental disturbances. Against this background, the opinion is held, that the paradigmatic medialization of the world has to be taken seriously and actively approached as a psycho-ecological factor with psychosocial, psychopathogenic and also neuroplastic effects. Therefore, also a psychiatric approach is needed to establish both research on media-associated disorders including their therapy and the development of quality standards in the therapeutic use of the Internet and Cyberspace. PMID:15472781

  4. Digital and social media opportunities for dietary behaviour change.

    PubMed

    McGloin, Aileen F; Eslami, Sara

    2015-05-01

    The way that people communicate, consume media and seek and receive information is changing. Forty per cent of the world's population now has an internet connection, the average global social media penetration is 39% and 1·5 billion people have internet access via mobile phone. This large-scale move in population use of digital, social and mobile media presents an unprecedented opportunity to connect with individuals on issues concerning health. The present paper aims to investigate these opportunities in relation to dietary behaviour change. Several aspects of the digital environment could support behaviour change efforts, including reach, engagement, research, segmentation, accessibility and potential to build credibility, trust, collaboration and advocacy. There are opportunities to influence behaviour online using similar techniques to traditional health promotion programmes; to positively affect health-related knowledge, skills and self-efficacy. The abundance of data on citizens' digital behaviours, whether through search behaviour, global positioning system tracking, or via demographics and interests captured through social media profiles, offer exciting opportunities for effectively targeting relevant health messages. The digital environment presents great possibilities but also great challenges. Digital communication is uncontrolled, multi-way and co-created and concerns remain in relation to inequalities, privacy, misinformation and lack of evaluation. Although web-based, social-media-based and mobile-based studies tend to show positive results for dietary behaviour change, methodologies have yet to be developed that go beyond basic evaluation criteria and move towards true measures of behaviour change. Novel approaches are necessary both in the digital promotion of behaviour change and in its measurement. PMID:25319345

  5. Struggle for Social Position in Digital Media Composition

    ERIC Educational Resources Information Center

    Doerr-Stevens, Candance

    2013-01-01

    This study investigates the processes and products of multimodal and multi-authored digital media composition. Using ethnographic case study and Mediated Discourse Analysis (Norris & Jones, 2005), this study focuses specifically on the digital media composition of radio and film documentaries, examining struggle among students, media, and…

  6. Protest: Critical Lessons of Using Digital Media for Social Change

    ERIC Educational Resources Information Center

    LaRiviere, Kristin; Snider, Jeanette; Stromberg, Alison; O'Meara, KerryAnn

    2012-01-01

    In this article, the authors consider the strengths and weaknesses of digital media in the organization of student activism, and how educators can better assist and advise student activists using digital media to create improved learning opportunities. To gain a perspective on the relative strengths and challenges of online media in regard to…

  7. Digital Media and Technology in Afterschool Programs, Libraries, and Museums

    ERIC Educational Resources Information Center

    Herr-Stephenson, Becky; Rhoten, Diana; Perkel, Dan; Sims, Christo

    2011-01-01

    Digital media and technology have become culturally and economically powerful parts of contemporary middle-class American childhoods. Immersed in various forms of digital media as well as mobile and Web-based technologies, young people today appear to develop knowledge and skills through participation in media. This MacArthur Report examines the…

  8. Inspiring Students through Digital Media Teleschool Teacher, Hawaii Schools Digital Media Program

    ERIC Educational Resources Information Center

    Yamashita, Irene

    2005-01-01

    Video is a powerful tool, and it can be used to motivate student achievement and learning. One of the greatest advantages in getting students to work with digital media is that they can retake and re-edit a project until they are satisfied with it. Students become very occupied in applying what they have learned by producing mini-documentaries,…

  9. Guiding Digital and Media Literacy Development in Arab Curricula through Understanding Media Uses of Arab Youth

    ERIC Educational Resources Information Center

    Melki, Jad P.

    2015-01-01

    The role of new media in the Arab uprisings and the news of widespread surveillance of digital and mobile media have triggered a renewed interest in Arab audiences research, particularly as it pertains to these audiences' critical abilities and digital media literacy competencies. Taken for granted have been Arab youth's widespread use of social…

  10. The Scope of Digital Image Media in Art Education

    ERIC Educational Resources Information Center

    Ortegren, Hans

    2012-01-01

    In this case study of forms 7-9 in a Swedish school, the subject conceptions of and teaching practices in art subjects of schoolteachers and pupils are studied, in particular with regard to digital media. How the core content of a subject is conceived is compared to the importance of digital media in the teaching practice. For three years a class…

  11. Investigating Mathematics through Digital Media: Cognitive Visual Perturbations

    ERIC Educational Resources Information Center

    Calder, Nigel

    2011-01-01

    How might investigating mathematical tasks through digital media influence students' learning trajectories, and hence their mathematical thinking? This article reports on elements of an ongoing study that examines how engaging mathematical phenomena through digital pedagogical media might influence understanding. As the students sought…

  12. Lifetime of digital media: is optics the solution?

    NASA Astrophysics Data System (ADS)

    Spitz, Erich; Hourcade, Jean-Charles; Lalo", Franck

    2010-01-01

    While the short term and mid-term archiving of digital data and information can be handled reasonably well with modern techniques, the long term aspects of the problem (several decades or even centuries) are much more difficult to manage. The heart of the problem is the longevity of storage media, which presently does not go beyond a few years, maybe one or two decades in the best cases. In this article, we review the various strategies for long term archiving, with two main categories: active and passive. We evaluate the various recording media in terms of their longevity. We then discuss the recordable optical digital disks (RODDs) and the state of the art in this domain; the present situation is that, with the techniques that are implemented commercially, good prospects for long term archiving are not available. Nevertheless, the conceptual simplicity of RODDs could be exploited to create new recordable digital media; the improvements that are needed seem to be reachable with reasonable development effort. Since RODDs are now in strong competition with other systems (hard disks or flash memory for instance) that constantly make enormous progress, there seems to be little hope to see RODDs win the race of capacity; nevertheless, longevity could provide them with a new market, since the need for long term archiving is so pressing everywhere in the world.

  13. Zero Feet Away: The Digital Geography of Gay Social Media.

    PubMed

    Roth, Yoel

    2016-01-01

    For this contribution to the "Cartographies" section of the special issue on "Mapping Queer Bioethics," the author focuses on the terrains of digital media, geosocial networking, and sexually based social media in LGBT communities. Addressing the communal potentials and ethical complications of geosocial connections made possible by such sexually based social media, the author asks whether digital forms of cartography via applications such as Grindr and Scruff simplify, complicate, or merely expose historically longstanding notions of queer interconnectivity. PMID:26643774

  14. Digital Natives? New and Old Media and Children's Outcomes

    ERIC Educational Resources Information Center

    Bittman, Michael; Rutherford, Leonie; Brown, Jude; Unsworth, Lens

    2011-01-01

    The current generation of young children has been described as "digital natives", having been born into a ubiquitous digital media environment. They are envisaged as educationally independent of the guided interaction provided by "digital immigrants": parents and teachers. This article uses data from the Longitudinal Study of Australian Children…

  15. Media digital signal processor core design for multimedia application

    NASA Astrophysics Data System (ADS)

    Liu, Peng; Yu, Guo-jun; Cai, Wei-guang; Yao, Qing-dong

    2006-02-01

    An embedded single media processor named MediaDSP3200 core fabricated in a six-layer metal 0.18um CMOS process which implemented the RISC instruction set, DSP data processing instruction set and single-instruction-multiple-data (SIMD) multimedia-enhanced instruction set is described. MediaDSP3200 fuses RISC architecture and DSP computation capability thoroughly, which achieves RISC fundamental, DSP extended and single instruction multiple data (SIMD) instruction set with various addressing modes in a unified pipeline stage architecture. These characteristics enhance system digital signal processing performance greatly. The test processor can achieve 32x32-bit multiply-accumulate (MAC) of 320 MOPS, with 16x16-bit MAC of 1280MOPS. The test processor dissipates 600mW at 1.8v, 320MHz. Also, the implementation was primarily standard cell logic design style. MediaDSP3200 targets diverse embedded application systems, which need both powerful processing/control capability and low-cost budget, e.g. set-top-boxes, video conferencing, DTV, etc. MediaDSP3200 instruction set architecture, addressing mode, pipeline design, SIMD feature, split-ALU and MAC are described in this paper. Finally, the performance benchmark based on H.264 and MPEG decoder algorithm are given in this paper.

  16. Digital solar system geology

    NASA Technical Reports Server (NTRS)

    Batson, R. M.; Kozak, R. C.; Isbell, Nancy K.

    1991-01-01

    All available synoptic maps of the solid-surface bodies of the Solar System were digitized for presentation in the planned Atlas of the Solar System by Greeley and Batson. Since the last report (Batson et al., 1990), preliminary Uranian satellite maps were replaced with improved versions, Galilean satellite geology was simplified and digitized, structure was added to many maps, and the maps were converted to a standard format, with corresponding standing colors for the mapped units. Following these changes, the maps were re-reviewed by their authors and are now undergoing final editing before preparation for publication. In some cases (for Mercury, Venus, and Mars), more detailed maps were digitized and then simplified for the Atlas. Other detailed maps are planned to be digitized in the coming year for the Moon and the Galilean satellites. For most of the remaining bodies such as the Uranian satellites, the current digitized versions contain virtually all the detail that can be mapped given the available data; those versions will be unchanged for the Atlas. These digital geologic maps are archived at the digital scale of 1/16 degree/ pixel, in sinusoidal format. The availability of geology of the Solar System in a digital database will facilitate comparisons and integration with other data: digitized lunar geologic maps have already been used in a comparison with Galileo SSI observations of the Moon.

  17. Precision digital control systems

    NASA Astrophysics Data System (ADS)

    Vyskub, V. G.; Rozov, B. S.; Savelev, V. I.

    This book is concerned with the characteristics of digital control systems of great accuracy. A classification of such systems is considered along with aspects of stabilization, programmable control applications, digital tracking systems and servomechanisms, and precision systems for the control of a scanning laser beam. Other topics explored are related to systems of proportional control, linear devices and methods for increasing precision, approaches for further decreasing the response time in the case of high-speed operation, possibilities for the implementation of a logical control law, and methods for the study of precision digital control systems. A description is presented of precision automatic control systems which make use of electronic computers, taking into account the existing possibilities for an employment of computers in automatic control systems, approaches and studies required for including a computer in such control systems, and an analysis of the structure of automatic control systems with computers. Attention is also given to functional blocks in the considered systems.

  18. 78 FR 56736 - Certain Digital Media Devices, Including Televisions, Blu-Ray Disc Players, Home Theater Systems...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-13

    ... Hills Media, LLC (``BHM''). 78 FR 29156-57. The complaint alleges violations of section 337 of the... Review an Initial Determination Granting Intervenor Status to Google, Inc. AGENCY: U.S. International... presiding administrative law judge (``ALJ'') on August 19, 2013, granting intervenor status to Google,...

  19. MediaTracker system

    SciTech Connect

    Sandoval, D. M.; Strittmatter, R. B.; Abeyta, J. D.; Brown, J.; Marks, T. , Jr.; Martinez, B. J.; Jones, D. B.; Hsue, W.

    2004-01-01

    The initial objectives of this effort were to provide a hardware and software platform that can address the requirements for the accountability of classified removable electronic media and vault access logging. The Media Tracker system software assists classified media custodian in managing vault access logging and Media Tracking to prevent the inadvertent violation of rules or policies for the access to a restricted area and the movement and use of tracked items. The MediaTracker system includes the software tools to track and account for high consequence security assets and high value items. The overall benefits include: (1) real-time access to the disposition of all Classified Removable Electronic Media (CREM), (2) streamlined security procedures and requirements, (3) removal of ambiguity and managerial inconsistencies, (4) prevention of incidents that can and should be prevented, (5) alignment with the DOE's initiative to achieve improvements in security and facility operations through technology deployment, and (6) enhanced individual responsibility by providing a consistent method of dealing with daily responsibilities. In response to initiatives to enhance the control of classified removable electronic media (CREM), the Media Tracker software suite was developed, piloted and implemented at the Los Alamos National Laboratory beginning in July 2000. The Media Tracker software suite assists in the accountability and tracking of CREM and other high-value assets. One component of the MediaTracker software suite provides a Laboratory-approved media tracking system. Using commercial touch screen and bar code technology, the MediaTracker (MT) component of the MediaTracker software suite provides an efficient and effective means to meet current Laboratory requirements and provides new-engineered controls to help assure compliance with those requirements. It also establishes a computer infrastructure at vault entrances for vault access logging, and can accommodate

  20. Digital wireless control system

    NASA Astrophysics Data System (ADS)

    Smith, R.

    1993-08-01

    The Digital Wireless Control System (DWCS) is designed to initiate high explosives safely while using a wireless remote control system. Numerous safety features have been designed into the fire control system to mitigate the hazards associated with remote initiation of high explosives. These safety features range from a telemetry (TM) fire control status system to mechanical timers and keyed power lockout switches. The environment, safety, and health (ES&H) Standard Operating Procedure (SOP) SP471970 is intended as a guide when working with the DWCS. This report describes the Digital Wireless Control System and outlines each component's theory of operation and its relationship to the system.

  1. Digital Storytelling as an Interactive Digital Media Context

    ERIC Educational Resources Information Center

    Anderson, Kate T.; Chua, Puay Hoe

    2010-01-01

    Digital storytelling involves the creation of short, personal narratives combining images, sounds, and text in a multimedia computer-based platform. In education, digital storytelling has been used to foster learning in formal and informal spaces worldwide. The authors offer a critical discussion of claims about digital storytelling's usefulness…

  2. Optical Digital Disks as Mass Storage Media.

    ERIC Educational Resources Information Center

    Boss, Richard W.

    1983-01-01

    Describes the optical digital disk, which stores machine-readable information in digitized form, and discusses their production, cost, present and future applications. The major companies currently active in the disk field are noted. (MBR)

  3. The Coming of Digital Desktop Media.

    ERIC Educational Resources Information Center

    Galbreath, Jeremy

    1992-01-01

    Discusses the movement toward digital-based platforms including full-motion video for multimedia products. Hardware- and software-based compression techniques for digital data storage are considered, and a chart summarizes features of Digital Video Interactive, Moving Pictures Experts Group, P x 64, Joint Photographic Experts Group, Apple…

  4. Digital sonar system

    SciTech Connect

    Young, K.K.; Wilkes, R.J.

    1995-11-21

    A transponder of an active digital sonar system identifies a multifrequency underwater activating sonar signal received from a remote sonar transmitter. The transponder includes a transducer that receives acoustic waves, including the activating sonar signal, and generates an analog electrical receipt signal. The analog electrical receipt signal is converted to a digital receipt signal and cross-correlated with a digital transmission signal pattern corresponding to the activating sonar signal. A relative peak in the cross-correlation value is indicative of the activating sonar signal having been received by the transponder. In response to identifying the activating sonar signal, the transponder transmits a responding multifrequency sonar signal. 4 figs.

  5. Digital sonar system

    SciTech Connect

    Young, Kenneth K.; Wilkes, R. Jeffrey

    1995-01-01

    A transponder of an active digital sonar system identifies a multifrequency underwater activating sonar signal received from a remote sonar transmitter. The transponder includes a transducer that receives acoustic waves, including the activating sonar signal, and generates an analog electrical receipt signal. The analog electrical receipt signal is converted to a digital receipt signal and cross-correlated with a digital transmission signal pattern corresponding to the activating sonar signal. A relative peak in the cross-correlation value is indicative of the activating sonar signal having been received by the transponder. In response to identifying the activating sonar signal, the transponder transmits a responding multifrequency sonar signal.

  6. From Gertie to Gigabytes: Revealing the World with Digital Media

    ERIC Educational Resources Information Center

    Counts, Ed

    2006-01-01

    Multimedia, as the term suggests, consists of multi-mediums such as photographs, sounds, and movies. A variety of digital production tools enable teachers, students, artists, and others to combine the elements in dynamic ways to inform, express, and teach. In this media-rich culture, people have taken digital tools for granted and they probably…

  7. Let's Scrum! Learning Digital Media Collaboratively

    ERIC Educational Resources Information Center

    Wilson, Daniel G.; Brown, Joshua; Burke, Adam A.

    2013-01-01

    The changing landscape of digital media and software development has immense impact on society, not only through consumer use of the products, but also in the way these technologies are developed. Modern software and media-development companies are using collaborative methods to develop innovative and useful products. Technology and engineering…

  8. Digital and analog communication systems

    NASA Technical Reports Server (NTRS)

    Shanmugam, K. S.

    1979-01-01

    The book presents an introductory treatment of digital and analog communication systems with emphasis on digital systems. Attention is given to the following topics: systems and signal analysis, random signal theory, information and channel capacity, baseband data transmission, analog signal transmission, noise in analog communication systems, digital carrier modulation schemes, error control coding, and the digital transmission of analog signals.

  9. Digital systems design language

    NASA Technical Reports Server (NTRS)

    Shiva, S. G.

    1979-01-01

    Digital Systems Design Language (DDL) is implemented on the SEL-32 Computer Systems. The detaileds of the language, the translator, and the simulator, and the smulator programs are given. Several example descriptions and a tutorial on hardware description languages are provided, to guide the user.

  10. Digital capacitance measuring system

    NASA Technical Reports Server (NTRS)

    1973-01-01

    The hardware phase of a digital capacitance measuring system is presented with the major emphasis placed on the electrical design and operation. Test results are included of the three units fabricated. The system's interface is applicable to existing requirements for the space shuttle vehicle.

  11. Measuring Children’s Media Use in the Digital Age

    PubMed Central

    Vandewater, Elizabeth A.; Lee, Sook-Jung

    2009-01-01

    In this new and rapidly changing era of digital technology, there is increasing consensus among media scholars that there is an urgent need to develop measurement approaches which more adequately capture media use The overarching goal of this paper is facilitate the development of measurement approaches appropriate for capturing children’s media use in the digital age. The paper outlines various approaches to measurement, focusing mainly on those which have figured prominently in major existing studies of children’s media use. We identify issues related to each technique, including advantages and disadvantages. We also include a review of existing empirical comparisons of various methodologies. The paper is intended to foster discussion of the best ways to further research and knowledge regarding the impact of media on children. PMID:19763246

  12. Evaluation of Digital Media for Emergent Literacy

    ERIC Educational Resources Information Center

    Hillman, Margy; Marshall, James

    2009-01-01

    Even a quick review of U.S. households, daycare centers, and preschools reveals widespread use of digital programs and products with young children. Research indicates that regardless of the hard technology that delivers these digital applications, their content most significantly affects the experience and outcomes. A primary question thus…

  13. 78 FR 29156 - Certain Digital Media Devices, Including Televisions, Blu-Ray Disc Players, Home Theater Systems...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-17

    ..., Tablets and Mobile Phones, Components Thereof and Associated Software: Notice of Receipt of Complaint... Systems, Tablets and Mobile Phones, Components Thereof and Associated Software, DN 2954; the Commission is... systems, tablets and mobile phones, components thereof and associated software. The complaint names...

  14. 78 FR 36573 - Certain Digital Media Devices, Including Televisions, Blu-Ray Disc Players, Home Theater Systems...

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-06-18

    ..., Tablets and Mobile Phones, Components Thereof and Associated Software AGENCY: U.S. International Trade... systems, tablets and mobile phones, components thereof and associated software, by reason of infringement... theater systems, tablets and mobile phones, components thereof and associated software by reason...

  15. Comparative life cycle assessments: The case of paper and digital media

    SciTech Connect

    Bull, Justin G. Kozak, Robert A.

    2014-02-15

    The consumption of the written word is changing, as media transitions from paper products to digital alternatives. We reviewed the life cycle assessment (LCA) research literature that compared the environmental footprint of digital and paper media. To validate the role of context in influencing LCA results, we assessed LCAs that did not compare paper and print, but focused on a product or component that is part of the Information and Communication Technology (ICT) sector. Using a framework that identifies problems in LCA conduct, we assessed whether the comparative LCAs were accurate expressions of the environmental footprints of paper and print. We hypothesized that the differences between the product systems that produce paper and digital media weaken LCA's ability to compare environmental footprints. We also hypothesized that the characteristics of ICT as an industrial sector weaken LCA as an environmental assessment methodology. We found that existing comparative LCAs offered problematic comparisons of paper and digital media for two reasons — the stark material differences between ICT products and paper products, and the unique characteristics of the ICT sector. We suggested that the context of the ICT sector, best captured by the concept of “Moore's Law”, will continuously impede the ability of the LCA methodology to measure ICT products. -- Highlights: • We review the LCA research that compares paper and digital media. • We contrast the comparative LCAs with LCAs that examine only digital products. • Stark differences between paper and digital media weakens LCA findings. • Digital products in general challenge the LCA method's reliability. • Continuous innovation and global nature of digital products impedes LCA methodology.

  16. Digital Media Literacies: Rethinking Media Education in the Age of the Internet

    ERIC Educational Resources Information Center

    Buckingham, David

    2007-01-01

    This article considers how media educators can respond to the new challenges and opportunities of the Internet, and of digital media more broadly. It begins by exploring the value and limitations of the notion of "literacy" in this context. It argues that "competence-based" definitions of literacy tend to neglect the social diversity of literacy…

  17. Digital flight control systems

    NASA Technical Reports Server (NTRS)

    Caglayan, A. K.; Vanlandingham, H. F.

    1977-01-01

    The design of stable feedback control laws for sampled-data systems with variable rate sampling was investigated. These types of sampled-data systems arise naturally in digital flight control systems which use digital actuators where it is desirable to decrease the number of control computer output commands in order to save wear and tear of the associated equipment. The design of aircraft control systems which are optimally tolerant of sensor and actuator failures was also studied. Detection of the failed sensor or actuator must be resolved and if the estimate of the state is used in the control law, then it is also desirable to have an estimator which will give the optimal state estimate even under the failed conditions.

  18. Using Digital Media to Promote Kidney Disease Education

    PubMed Central

    Goldstein, Karen; Briggs, Michael; Oleynik, Veronica; Cullen, Mac; Jones, Jewel; Newman, Eileen

    2013-01-01

    Healthcare providers and patients increasingly turn to the Internet—websites as well as social media platforms—for health-related information and support. Informed by research on audience behaviors and preferences related to digital health information, the National Kidney Disease Education Program (NKDEP) developed a comprehensive and user-friendly digital ecosystem featuring content and platforms relevant for each audience. NKDEP's analysis of website metrics and social media conversation mapping related to chronic kidney disease revealed gaps and opportunities, informing the development of a digital strategy to position NKDEP as a trustworthy digital source for evidence-based kidney disease information. NKDEP launched a redesigned website (www.nkdep.nih.gov) with enhanced content for multiple audiences as well as a complementary social media presence on Twitter and Facebook, serving to drive traffic to the website as well as actively engage target audiences in conversations about kidney disease. The results included improved website metrics and increasing social media engagement among consumers and healthcare providers. NKDEP will continue to monitor trends, explore new directions, and work to improve communication across digital platforms. PMID:23809289

  19. Using digital media to promote kidney disease education.

    PubMed

    Goldstein, Karen; Briggs, Michael; Oleynik, Veronica; Cullen, Mac; Jones, Jewel; Newman, Eileen; Narva, Andrew

    2013-07-01

    Health-care providers and patients increasingly turn to the Internet-websites as well as social media platforms-for health-related information and support. Informed by research on audience behaviors and preferences related to digital health information, the National Kidney Disease Education Program (NKDEP) developed a comprehensive and user-friendly digital ecosystem featuring content and platforms relevant for each audience. NKDEP's analysis of website metrics and social media conversation mapping related to CKD revealed gaps and opportunities, informing the development of a digital strategy to position NKDEP as a trustworthy digital source for evidence-based kidney disease information. NKDEP launched a redesigned website (www.nkdep.nih.gov) with enhanced content for multiple audiences as well as a complementary social media presence on Twitter and Facebook serving to drive traffic to the website as well as actively engage target audiences in conversations about kidney disease. The results included improved website metrics and increasing social media engagement among consumers and health-care providers. NKDEP will continue to monitor trends, explore new directions, and work to improve communication across digital platforms. PMID:23809289

  20. Digital Media Shapes Youth Participation in Politics

    ERIC Educational Resources Information Center

    Kahne, Joseph; Middaugh, Ellen

    2012-01-01

    Will those who Tweet vote? Social media clearly create new opportunities for voice, for agency, and potentially for influence. But they create risks as well, because there is no reason to assume that engagement with participatory politics will inevitably or organically develop in positive ways. That's where schools come into the picture, playing…

  1. Design Language for Digital Systems

    NASA Technical Reports Server (NTRS)

    Shiva, S. G.

    1985-01-01

    Digital Systems Design Language (DDL) is convenient hardware description language for developing and testing digital designs and for inputting design details into design automation system. Describes digital systems at gate, register transfer, and combinational block levels. DDL-based programs written in FORTRAN IV for batch execution.

  2. Digital Cinema Principles and Techniques for Multi-Media Development.

    ERIC Educational Resources Information Center

    Wyatt, Roger B.

    Digital electronic technology systems are composed of hardware, software, thoughtware, and their context. The four elements of the model are in a context sensitive relationship where to alter one element is to change them all. Digital Cinema is a theoretical construct for understanding moving images produced and viewed in a digital context.…

  3. Professional Rhetorics: Bridging the Gap between Writing, Speaking, & Digital Media

    ERIC Educational Resources Information Center

    Hodgson, Justin

    2009-01-01

    This article presents the syllabus for the course "Professional Rhetorics: Bridging the Gap Between Writing, Speaking, & Digital Media." The course is designed to help students develop into effective rhetors for today's professional environments, and it will do so by exploring numerous rhetorical strategies associated with oral, written, and…

  4. Teens, Digital Media, and the Chicago Public Library. Research Report

    ERIC Educational Resources Information Center

    Sebring, Penny Bender; Brown, Eric R.; Julian, Kate M.; Ehrlich, Stacy B.; Sporte, Susan E.; Bradley, Erin; Meyer, Lisa

    2013-01-01

    Opened in fall 2009, YOUmedia attracts high schoolaged teens who want a safe and welcoming place to hang out and socialize, as well as those with established or nascent interests in both digital and traditional media. With the guidance of staff and the synergy of peer involvement, participants discover and pursue their interests through both…

  5. Activating Digital-Media-Global Literacies and Learning

    ERIC Educational Resources Information Center

    Jacobs, Heidi Hayes

    2014-01-01

    In this article, the author states: "It doesn't matter how many computer-related devices we have in school, what matters is how we employ technology toward a large learning goal, toward a new vision of education." She continues, "When I suggest the cultivation and integration of digital, media, and global literacies, I do so…

  6. Digital Spring? New Media and New Politics on the Campus

    ERIC Educational Resources Information Center

    Bessant, Judith

    2014-01-01

    Whilst the dynamics informing processes have taken time to become clear, civic resistance initiated by young people using new media began in Egypt in 2010 against the Mubarak regime, soon widened to Tunisia, Yemen and Libya. Known as the "Arab Spring", this phenomenon re-ignited discussion about the political role of digital space and…

  7. Media Arts: Arts Education for a Digital Age

    ERIC Educational Resources Information Center

    Peppler, Kylie A.

    2010-01-01

    Background/Context: New technologies have been largely absent in arts education curriculum even though they offer opportunities to address arts integration, equity, and the technological prerequisites of an increasingly digital age. This paper draws upon the emerging professional field of "media arts" and the ways in which youth use new…

  8. Drama, Digital Pre-Text and Social Media

    ERIC Educational Resources Information Center

    Carroll, John; Cameron, David

    2009-01-01

    This article presents a case study of Australian secondary school students as co-creators of a dramatic pre-text, using online and mobile media to develop an improvisation-based drama that introduces a textual study. Integrating recognised dramatic conventions within a digital environment provides the tension, and drives the educational…

  9. What Learners "Know" through Digital Media Production: Learning by Design

    ERIC Educational Resources Information Center

    Mills, Kathy A.

    2010-01-01

    The power to influence others in ever expanding social networks in the new knowledge economy is tied to capabilities with digital media production that require increased technological knowledge. This article draws on research in primary classrooms to examine the repertoires of cross-disciplinary knowledge that literacy learners need to produce…

  10. Digital system bus integrity

    NASA Technical Reports Server (NTRS)

    Eldredge, Donald; Hitt, Ellis F.

    1987-01-01

    This report summarizes and describes the results of a study of current or emerging multiplex data buses as applicable to digital flight systems, particularly with regard to civil aircraft. Technology for pre-1995 and post-1995 timeframes has been delineated and critiqued relative to the requirements envisioned for those periods. The primary emphasis has been an assured airworthiness of the more prevalent type buses, with attention to attributes such as fault tolerance, environmental susceptibility, and problems under continuing investigation. Additionally, the capacity to certify systems relying on such buses has been addressed.

  11. The Building Blocks of Digital Media Literacy: Socio-Material Participation and the Production of Media Knowledge

    ERIC Educational Resources Information Center

    Dezuanni, Michael

    2015-01-01

    This article outlines the knowledge and skills students develop when they engage in digital media production and analysis in school settings. The metaphor of "digital building blocks" is used to describe the material practices, conceptual understandings and production of knowledge that lead to the development of digital media literacy.…

  12. Jitter in digital transmission systems

    NASA Astrophysics Data System (ADS)

    Trischitta, Patrick R.; Varma, Eve L.

    Theoretical, design, and applications aspects of jitter in digital telecommunication systems are discussed, with an emphasis on fiber-optic systems. Chapters are devoted to jitter introduced by line regenerators, jitter accumulation in cascaded regenerators, the effect of jitter on transmission quality, jitter introduced by digital multiplexes, jitter tolerance and transfer in digital multiplexes, jitter accumulation in digital networks, wander, and network jitter standards. Diagrams; graphs; and a glossary of symbols, acronyms, and abbreviations are provided.

  13. Digital Media's Transformative Role in Education: Beyond Potential to Essential

    ERIC Educational Resources Information Center

    Chien, Ming-tso

    2012-01-01

    Achieving effective learning via digital media continues to be a major concern in contemporary education. The daily use of all forms of digital media is part of our lives and therefore becomes a key component of education. Educators must consider the process of digital media curriculum as a learning model and form of experience adapted to…

  14. The Intelsat digital communication systems

    NASA Astrophysics Data System (ADS)

    Phiel, John F., Jr.

    1990-08-01

    Intelsat international communication services resulting from the application of digital technology are summarized. Approximately 40 percent of the 140,000 terrestrial channels from the Public Switched Telephone Networks (PSTN) provided by the Intelsat network are now handled by digital systems. Digital technology for the interconnection of the PSTNs is discussed. Particular attention is paid to modulation and access techniques including the intermediate data rate (IDR) system, and the fixed and satellite switched TDMA systems. Digital compression techniques used with TDMA and IDR, such as digital speech interpolation and digital circuit multiplication, are also discussed. The Intelsat Business Service and the Intelnet Service are described in the framework of digital technology for private networks and business users. Communications for remote areas, international television services, and future opportunities through digital technologies are briefly presented.

  15. Digital communication system

    NASA Technical Reports Server (NTRS)

    Monford, L. G., Jr. (Inventor)

    1974-01-01

    A digital communication system is reported for parallel operation of 16 or more transceiver units with the use of only four interconnecting wires. A remote synchronization circuit produces unit address control words sequentially in data frames of 16 words. Means are provided in each transceiver unit to decode calling signals and to transmit calling and data signals. The transceivers communicate with each other over one data line. The synchronization unit communicates the address control information to the transceiver units over an address line and further provides the timing information over a clock line. A reference voltage level or ground line completes the interconnecting four wire hookup.

  16. 37 CFR 201.27 - Initial notice of distribution of digital audio recording devices or media.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... distribution of digital audio recording devices or media. 201.27 Section 201.27 Patents, Trademarks, and... Initial notice of distribution of digital audio recording devices or media. (a) General. This section..., any digital audio recording device or digital audio recording medium in the United States....

  17. 37 CFR 201.28 - Statements of Account for digital audio recording devices or media.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... digital audio recording devices or media. 201.28 Section 201.28 Patents, Trademarks, and Copyrights... of Account for digital audio recording devices or media. (a) General. This section prescribes rules... United States any digital audio recording device or digital audio recording medium. (b) Definitions....

  18. 37 CFR 201.28 - Statements of Account for digital audio recording devices or media.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... digital audio recording devices or media. 201.28 Section 201.28 Patents, Trademarks, and Copyrights... of Account for digital audio recording devices or media. (a) General. This section prescribes rules... United States any digital audio recording device or digital audio recording medium. (b) Definitions....

  19. 37 CFR 201.27 - Initial notice of distribution of digital audio recording devices or media.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... distribution of digital audio recording devices or media. 201.27 Section 201.27 Patents, Trademarks, and... Initial notice of distribution of digital audio recording devices or media. (a) General. This section..., any digital audio recording device or digital audio recording medium in the United States....

  20. 37 CFR 201.27 - Initial notice of distribution of digital audio recording devices or media.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... distribution of digital audio recording devices or media. 201.27 Section 201.27 Patents, Trademarks, and... Initial notice of distribution of digital audio recording devices or media. (a) General. This section..., any digital audio recording device or digital audio recording medium in the United States....

  1. 37 CFR 201.27 - Initial notice of distribution of digital audio recording devices or media.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... distribution of digital audio recording devices or media. 201.27 Section 201.27 Patents, Trademarks, and... § 201.27 Initial notice of distribution of digital audio recording devices or media. (a) General. This... and distribute, any digital audio recording device or digital audio recording medium in the...

  2. 37 CFR 201.28 - Statements of Account for digital audio recording devices or media.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... digital audio recording devices or media. 201.28 Section 201.28 Patents, Trademarks, and Copyrights U.S... of Account for digital audio recording devices or media. (a) General. This section prescribes rules... United States any digital audio recording device or digital audio recording medium. (b) Definitions....

  3. 37 CFR 201.28 - Statements of Account for digital audio recording devices or media.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... digital audio recording devices or media. 201.28 Section 201.28 Patents, Trademarks, and Copyrights... of Account for digital audio recording devices or media. (a) General. This section prescribes rules... United States any digital audio recording device or digital audio recording medium. (b) Definitions....

  4. Media integration platform on superhigh-definition images: parallel digital signal processor approach

    NASA Astrophysics Data System (ADS)

    Ono, Sadayasu; Ohta, Naohisa; Fujii, Tetsuro

    1993-11-01

    This paper presents a new media integration platform based on super high definition (SHD) digital images and a high performance image processing system that adopts parallel digital processing. The new platform will encourage the integration of all existing media to realize rich and realistic visual communication over B-ISDN. SHD images have a resolution of more than 2048 X 2048 pixels and the frame rate is more than 60 frames/sec. To achieve the real-time compression of SHD moving images, parallel signal processing systems with a peak performance of 0.5 Tera Flops will be necessary. The specification requirements, focusing on the digital signal processing systems needed to achieve SHD image communication, are discussed.

  5. New Media E/PO: Building a Digital Astronomy Community

    NASA Astrophysics Data System (ADS)

    Gay, Pamela L.

    2008-05-01

    Today's communications landscape is rich with new technologies. Cell phones and laptops are the constant companions of content consumers, and as we plan tomorrow's Education and Public Outreach programs, we need to consider how to most effectively utilize these technologies with their new, dynamic content possibilities - We need to use New Media. The field of New Media includes dynamic content sites such as: blogs, pod/vodcasts, Flickr, Facebook, Ustream, Twitter, and Second Life. The first part of this talk will summarize what New Media is available in the field of astronomy. All new media technologies have one thing in common: Users can easily create and input their own content and/or comments. These new media users and content contributors can just as easily be professional researchers, E/PO professionals, amateur astronomers, stay-at-home parents, and school kids. All are welcome in the online community, and today, all voices are digitally joined in the cacophony of astronomy new media content. This rich diversity supports many opportunities for learning, mentoring, content distribution, and discussion of ideas (including the debunking of bad ideas). In the second half of this talk, ways to use new media to build a community that shares, promotes, and comments on content is discussed, and techniques for dealing with the high flux of content are outlined. Also covered are the considerations that need to be made to make content as broadly accessible as possible.

  6. Using immersive media and digital technology to communicate Earth Science

    NASA Astrophysics Data System (ADS)

    Kapur, Ravi

    2016-04-01

    A number of technologies in digital media and interactivity have rapidly advanced and are now converging to enable rich, multi-sensoral experiences which create opportunities for both digital art and science communication. Techniques used in full-dome film-making can now be deployed in virtual reality experiences; gaming technologies can be utilised to explore real data sets; and collaborative interactivity enable new forms of public artwork. This session will explore these converging trends through a number of emerging and forthcoming projects dealing with Earth science, climate change and planetary science.

  7. Digital TV processing system

    NASA Technical Reports Server (NTRS)

    1975-01-01

    Two digital video data compression systems directly applicable to the Space Shuttle TV Communication System were described: (1) For the uplink, a low rate monochrome data compressor is used. The compression is achieved by using a motion detection technique in the Hadamard domain. To transform the variable source rate into a fixed rate, an adaptive rate buffer is provided. (2) For the downlink, a color data compressor is considered. The compression is achieved first by intra-color transformation of the original signal vector, into a vector which has lower information entropy. Then two-dimensional data compression techniques are applied to the Hadamard transformed components of this last vector. Mathematical models and data reliability analyses were also provided for the above video data compression techniques transmitted over a channel encoded Gaussian channel. It was shown that substantial gains can be achieved by the combination of video source and channel coding.

  8. Educating for Digital Futures: What the Learning Strategies of Digital Media Professionals Can Teach Higher Education

    ERIC Educational Resources Information Center

    Bridgstock, Ruth

    2016-01-01

    This article explores how universities might engage more effectively with the imperative to develop students' twenty-first century skills for the information society, by examining learning challenges and professional learning strategies of successful digital media professionals. The findings of qualitative interviews with professionals from…

  9. Digital Media Use and Social Engagement: How Social Media and Smartphone Use Influence Social Activities of College Students.

    PubMed

    Kim, Yonghwan; Wang, Yuan; Oh, Jeyoung

    2016-04-01

    Social media and mobile phones have emerged as important platforms for college students' communication activities. This study examined how college students' psychological need to belong is associated with their use of social media and smartphones. In addition, it further investigated the effects of college students' digital media use on their social engagement. Findings revealed that students' need to belong was positively related with their use of social media and smartphones, which could further facilitate their social engagement. Moreover, the relationship between the need to belong and social engagement was mediated by college students' digital media use. This study offers empirical evidence of the positive effects of digital media on social behaviors and contributed to further understanding about the mechanisms by which need to belong leads to social engagement through digital media use. PMID:26991638

  10. It's Not All about the Music: Digital Goods, Social Media, and the Pressure of Peers

    ERIC Educational Resources Information Center

    Sopha, Matthew

    2013-01-01

    Social media offers a powerful platform for the independent digital content producer community to develop, disperse, and maintain their brands. In terms of information systems research, the broad majority of the work has not examined hedonic consumption on Social Media Sites (SMS). The focus has mostly been on the organizational perspectives and…

  11. On Reading and Digital Media: Rejoinder to "Digital Technology and Student Cognitive Development: The Neuroscience of the University Classroom"

    ERIC Educational Resources Information Center

    Williams-Pierce, Caroline

    2016-01-01

    This commentary serves as an introduction to multiple scholarly fields about the value of digital media for providing contexts for and provoking learning. The author proposes that rather than considering a dichotomy between reading physical books and reading digital media, as encouraged by Cavanaugh et al. (2015), instead consider a scale of sorts…

  12. Sustainable Innovations: Bringing Digital Media and Emerging Technologies to the Classroom

    ERIC Educational Resources Information Center

    Herro, Danielle

    2015-01-01

    Because traditional schools struggle to effectively understand, implement, and sustain digital learning initiatives, innovating with digital media in classrooms is a difficult endeavor. Practitioners need examples to better understand conditions necessary to move forward with digital media and learning (DML) in schools. This article provides…

  13. From SuperGoo to Scratch: Exploring Creative Digital Media Production in Informal Learning

    ERIC Educational Resources Information Center

    Peppler, Kylie A.; Kafai, Yasmin B.

    2007-01-01

    Based on work in media studies, new literacy studies, applied linguistics, the arts and empirical research on the experiences of urban youths' informal media arts practices, we articulate a new vision for media education in the digital age that encompasses new genres, convergence, media mixes and participation. We first outline the history of how…

  14. Complex Digital Visual Systems

    ERIC Educational Resources Information Center

    Sweeny, Robert W.

    2013-01-01

    This article identifies possibilities for data visualization as art educational research practice. The author presents an analysis of the relationship between works of art and digital visual culture, employing aspects of network analysis drawn from the work of Barabási, Newman, and Watts (2006) and Castells (1994). Describing complex network…

  15. A closed, digital telephone system

    NASA Technical Reports Server (NTRS)

    Monford, L. G., Jr.

    1973-01-01

    Digital system can accommodate sixteen or more telephone or data units and eight, simultaneous two-way conversations through only four interconnecting wires. It uses fewer circuit components, is not bulky or complex, and requires no central exchange control.

  16. Obtaining schedules for digital systems

    NASA Technical Reports Server (NTRS)

    Jagadish, H. V.; Kailath, Thomas

    1991-01-01

    A systematic technique is presented to derive correct schedules for a synchronous digital system, given a signal flow graph for an algorithm. It is also shown how to use this technique to derive designs that are optimal in having the lowest latency, the highest throughput, or the smallest number of registers. The same technique can also be used to verify digital systems that have already been designed.

  17. The Stanford MediaServer Project: strategies for building a flexible digital media platform to support biomedical education and research.

    PubMed

    Durack, Jeremy C; Chao, Chih-Chien; Stevenson, Derek; Andriole, Katherine P; Dev, Parvati

    2002-01-01

    Medical media collections are growing at a pace that exceeds the value they currently provide as research and educational resources. To address this issue, the Stanford MediaServer was designed to promote innovative multimedia-based application development. The nucleus of the MediaServer platform is a digital media database strategically designed to meet the information needs of many biomedical disciplines. Key features include an intuitive web-based interface for collaboratively populating the media database, flexible creation of media collections for diverse and specialized purposes, and the ability to construct a variety of end-user applications from the same database to support biomedical education and research. PMID:12463820

  18. FORTRAN IV Digital Filter Design Programs. Digital Systems Education Project.

    ERIC Educational Resources Information Center

    Reuss, E.; And Others

    The goals of the Digital Systems Education Project (DISE) include the development and distribution of educational/instructional materials in the digital systems area. Toward that end, this document contains three reports: (1) A FORTRAN IV Design Program for Low-Pass Butterworth and Chebychev Digital Filters; (2) A FORTRAN IV Design Program for…

  19. Digital systems design language. Design synthesis of digital systems

    NASA Technical Reports Server (NTRS)

    Shiva, S. G.

    1979-01-01

    The Digital Systems Design Language (DDL) is implemented on the SEL-32 computer systems. The details of the language, translator and simulator programs are included. Several example descriptions and a tutorial on hardware description languages are provided, to guide the user.

  20. In Medias Res: Reading, Writing, and the Digital Artefact

    ERIC Educational Resources Information Center

    Dobson, Teresa M.

    2007-01-01

    In information systems and end-user computer research, "using" appears to encapsulate a range of activities, such as reading, writing, viewing and so on. And yet it is a grossly inadequate descriptor for any of these activities, failing to account for the fact that texts--digital or otherwise--are produced and engaged by humans for a variety of…

  1. Online Activities, Digital Media Literacy, and Networked Individualism of Korean Youth

    ERIC Educational Resources Information Center

    Park, Sora; Kim, Eun-mee; Na, Eun-Yeong

    2015-01-01

    Networked individualism enables Internet users to connect and socialize via their loose and transient multiple networks, whereas digital media literacy is a precondition of effective Internet use. In this study, an attempt has been made to find the link between networked individualism, digital media literacy, and young people's perception of their…

  2. Student Adoption & Development of Digital Learning Media: Action Research and Recommended Practices

    ERIC Educational Resources Information Center

    Tabor, Sharon W.; Minch, Robert P.

    2013-01-01

    Digital technologies offer many opportunities for creating engaging course content. In this study we captured student perceptions and adoption choices related to creating and using digital media as learning tools. Podcasts, video and other media were integrated in a variety of contexts and tasks in two undergraduate information technology (IT)…

  3. Beyond Digital Natives: European Research on Media Education; Challenges of Technology and Pedagogical Issues

    ERIC Educational Resources Information Center

    Rivoltella, Pier Cesare

    2012-01-01

    This article aims to map issues of Media Education currently under debate in Europe. It points out three main research trends. The first one concerns digital natives and their skills in media and technologies. Here we have quite a dialectic situation: on the one hand, a lot of scholars and policymakers are sure that digital natives exist, that…

  4. Curriculum Design and Management in the Digital Media U: Applying the Corporate University Concept to a Business Sub-Sector

    ERIC Educational Resources Information Center

    Selby, Les; Russell, David

    2005-01-01

    Purpose: To report on the progress of Digital Media U, a tailor-made portal, learning environment and management system. Design/methodology/approach: Discusses the design of the learning content domains, acquisition of the content and the systems for managing the curriculum in the future, including the application of a new model of accreditation.…

  5. VISION Digital Video Library System.

    ERIC Educational Resources Information Center

    Rusk, Michael D.

    2001-01-01

    Describes the VISION Digital Library System, a project implemented by the University of Kansas that uses locally developed applications to segment and automatically index video clips. Explains that the focus of VISION is to make possible the gathering and indexing of large amounts of video material, storing material on a database system, and…

  6. Focusing light through scattering media by full-polarization digital optical phase conjugation

    PubMed Central

    Shen, Yuecheng; Liu, Yan; Ma, Cheng; Wang, Lihong V.

    2016-01-01

    Digital optical phase conjugation (DOPC) is an emerging technique for focusing light through or within scattering media such as biological tissue. Since DOPC systems are based on time reversal, they benefit from collecting as much information about the scattered light as possible. However, existing DOPC techniques record and subsequently phase-conjugate the scattered light in only a single polarization state, limited by the operating principle of spatial light modulators. Here, we develop the first full-polarization DOPC system which records and phase-conjugates scattered light along two orthogonal polarizations. When focusing light through thick scattering media, such as 2 mm and 4 mm thick chicken breast tissue, our full-polarization DOPC system on average doubles the focal peak-to-background ratio achieved by single-polarization DOPC systems and improves the phase conjugation fidelity. PMID:26977651

  7. Focusing light through scattering media by full-polarization digital optical phase conjugation.

    PubMed

    Shen, Yuecheng; Liu, Yan; Ma, Cheng; Wang, Lihong V

    2016-03-15

    Digital optical phase conjugation (DOPC) is an emerging technique for focusing light through or within scattering media such as biological tissue. Since DOPC systems are based on time reversal, they benefit from collecting as much information about the scattered light as possible. However, existing DOPC techniques record and subsequently phase-conjugate the scattered light in only a single-polarization state, limited by the operating principle of spatial light modulators. Here, we develop the first, to the best of our knowledge, full-polarization DOPC system that records and phase-conjugates scattered light along two orthogonal polarizations. When focusing light through thick scattering media, such as 2 mm and 4 mm-thick chicken breast tissue, our full-polarization DOPC system on average doubles the focal peak-to-background ratio achieved by single-polarization DOPC systems and improves the phase-conjugation fidelity. PMID:26977651

  8. Using Disruptive Technologies to Make Digital Connections: Stories of Media Use and Digital Literacy in Secondary Classrooms

    ERIC Educational Resources Information Center

    Nowell, Shanedra D.

    2014-01-01

    This study focused on ways teachers and students in an urban high school used technologies often labeled as disruptive (i.e. social media and mobile phones) as learning and relationship building tools, inside and outside the classroom. In this teacher research study, secondary teachers discussed digital literacies, the digital divide, and digital…

  9. Digital Media, Technologies and Scholarship: Some Shapes of eResearch in Educational Inquiry

    ERIC Educational Resources Information Center

    Markauskaite, Lina

    2010-01-01

    This paper discusses some recent developments in digital media, research technologies and scholarly practices that are known under the umbrella term of "eResearch". Drawing on conceptual ideas of digital materialism, epistemic artefacts and epistemic tools, this paper discusses how the digital inscription of knowledge and knowing could change the…

  10. Re-Mixing Multimodal Resources: Multiliteracies and Digital Production in Norwegian Media Education

    ERIC Educational Resources Information Center

    Erstad, Ola; Gilje, Oystein; de Lange, Thomas

    2007-01-01

    Youngsters are increasingly using digital technologies through participation in informal settings. Schools, however, seem to be struggling with implementing digital technologies into formal school activities. With the impact of digital technologies, media education can be seen as an increasingly important "transactional learning space" between…

  11. More than Chatting Online: Children, Marketing and the Use of Digital Media

    ERIC Educational Resources Information Center

    Snyder, Ilana; Jevons, Colin; Henderson, Michael; Gabbott, Mark; Beale, Denise

    2011-01-01

    While schools have taught media literacy for many years, new challenges are raised by the growth of digital media and the sophistication of marketing techniques aimed at children. In response to a moral panic over the dangers posed by new media, schools have focused on cyber-safety education to reduce the incidence of phenomena such as…

  12. Mis/Representations in School-Based Digital Media Production: An Ethnographic Exploration with Muslim Girls

    ERIC Educational Resources Information Center

    Dahya, Negin; Jenson, Jennifer

    2015-01-01

    In this article, the authors discuss findings from a digital media production club with racialized girls in a low-income school in Toronto, Ontario. Specifically, the authors consider how student-produced media is impacted by ongoing postcolonial structures relating to power and representation in the school and in the media production work of…

  13. Digital Media Literacy in a Sports, Popular Culture and Literature Course

    ERIC Educational Resources Information Center

    Fortuna, Carolyn

    2015-01-01

    This article considers how media sports culture is an apt space for digital media literacy instruction. Describing a senior year high school English course that requires students to deconstruct and compose with sports media texts, the author outlines how learning modules, analysis of curated collections of texts through heuristics, and mentor…

  14. Digital Collaboration inside and outside Educational Systems

    ERIC Educational Resources Information Center

    Birkeland, Nils Rune; Drange, Eli-Marie Danbolt; Tønnessen, Elise Seip

    2015-01-01

    This article takes its outset in findings from an ongoing research project investigating the use of digital and multimodal resources in teacher education (TE) in Norway. The material studied is mandatory assignments in different courses in TE, asking how teacher students collaborate through digital media in their production of texts for learning,…

  15. BROADBAND DIGITAL GEOPHYSICAL TELEMETRY SYSTEM.

    USGS Publications Warehouse

    Seeley, Robert L.; Daniels, Jeffrey J.

    1984-01-01

    A system has been developed to simultaneously sample and transmit digital data from five remote geophysical data receiver stations to a control station that processes, displays, and stores the data. A microprocessor in each remote station receives commands from the control station over a single telemetry channel.

  16. Digital television system design study

    NASA Technical Reports Server (NTRS)

    Huth, G. K.

    1976-01-01

    The use of digital techniques for transmission of pictorial data is discussed for multi-frame images (television). Video signals are processed in a manner which includes quantization and coding such that they are separable from the noise introduced into the channel. The performance of digital television systems is determined by the nature of the processing techniques (i.e., whether the video signal itself or, instead, something related to the video signal is quantized and coded) and to the quantization and coding schemes employed.

  17. The intelligent use of digital tools and social media in practice management.

    PubMed

    Carroll, Christopher L; Ramachandran, Pradeep

    2014-04-01

    The Internet has fundamentally transformed the way patients and health-care providers communicate and interact. The use of digital tools and social media platforms, such as blogs, Facebook, Instagram, and Twitter, have empowered patients to expand their health-care knowledge and have provided practitioners with new ways to gain knowledge, lead discussions, promote causes, and build relationships with patients and other providers. In this article, we discuss the difference between digital communication, static one-way digital presence, and two-way social media connections. We also describe ways to establish and foster your digital profile, review the benefits and risks of engaging professionally in social media, and describe ways in which digital and social media tools may prove useful in both reimbursement and practice management. PMID:24687711

  18. Digital Systems Analysis

    ERIC Educational Resources Information Center

    Martin, Vance S.

    2009-01-01

    There have been many attempts to understand how the Internet affects our modern world. There have also been numerous attempts to understand specific areas of the Internet. This article applies Immanuel Wallerstein's World Systems Analysis to our informationalist society. Understanding this world as divided among individual core, semi-periphery,…

  19. A telerobotic digital controller system

    NASA Technical Reports Server (NTRS)

    Brown, Richard J.

    1992-01-01

    This system is a network of joint mounted dual axes digital servo-controllers (DDSC), providing control of various joints and end effectors of different robotic systems. This report provides description of and user required information for the Digital Controller System Network (DSCN) and, in particular, the DDSC, Model DDSC-2, developed to perform the controller functions. The DDSC can control 3 phase brushless or brush type DC motors, requiring up to 8 amps. Only four wires, two for power and 2 for serial communication, are required, except for local sensor and motor connections. This highly capable, very flexible, programmable servo-controller, contained on a single, compact printed circuit board measuring only 4.5 x 5.1 inches, is applicable to control systems of all types from sub-arc second precision pointing to control of robotic joints and end effectors. This document concentrates on the robotic applications for the DDSC.

  20. Ageing Characteristics Of Digital Optical Recording (DOR) Media

    NASA Astrophysics Data System (ADS)

    Huijser, A.; Jacobs, B.; Vriens, L.; Markvoort, J.; Spruijt, A.; Vromans, P.

    1983-01-01

    Accelerated ageing tests on discs with Te-alloy films for ablative digital optical recording show that these media meet the requirements for their applications in long-term data storage. In these tests, discs of the air-sandwich type with non-sealed (open) as well as sealed cavities were subjected to cyclic high temperatures (25-65°C) and high humidity (95% RH) conditions. "Open" discs incorporating pure Te as ablative material cannot with-stand such severe conditions for more than a few days whereas "open" discs applying Te-Se based alloys with 60 to 80% Te content have not reached end of life after 100 days storage under the same conditions. After such a period of accelerated ageing, hermetically sealed discs do not show any significant ageing effects at all. Ageing is defined in terms which are relevant to optical recording, such as sensitivity for writing, signal to noise ratio of written data and bit error rates and bit error distribution.

  1. Digital optical phase conjugation for delivering two-dimensional images through turbid media

    PubMed Central

    Hillman, Timothy R.; Yamauchi, Toyohiko; Choi, Wonshik; Dasari, Ramachandra R.; Feld, Michael S.; Park, YongKeun; Yaqoob, Zahid

    2013-01-01

    Optical transmission through complex media such as biological tissue is fundamentally limited by multiple light scattering. Precise control of the optical wavefield potentially holds the key to advancing a broad range of light-based techniques and applications for imaging or optical delivery. We present a simple and robust digital optical phase conjugation (DOPC) implementation for suppressing multiple light scattering. Utilizing wavefront shaping via a spatial light modulator (SLM), we demonstrate its turbidity-suppression capability by reconstructing the image of a complex two-dimensional wide-field target through a highly scattering medium. Employing an interferometer with a Sagnac-like ring design, we successfully overcome the challenging alignment and wavefront-matching constraints in DOPC, reflecting the requirement that the forward- and reverse-propagation paths through the turbid medium be identical. By measuring the output response to digital distortion of the SLM write pattern, we validate the sub-wavelength sensitivity of the system. PMID:23714766

  2. System-on-chip architecture with media DSP and RISC core for media application

    NASA Astrophysics Data System (ADS)

    Liu, Peng

    2006-02-01

    Systems-on-chips provide single-chip solutions in many embedded applications to meet the applications size and power requirements. Media processing such as real-time compression and decompression of video signal is now expected to be the driving force in the evolution of media processor. The MediaSoC322xA consists of two fully programmable processor cores and integrates digital video encoder. The programmable cores toward a particular class of algorithms: the MediaDSP3200 for RISC/DSP oriented functions and multimedia processing, and the RISC3200 for bit stream processing and control function. Dedicated interface units for DRAM, SDRAM, Flash, SRAM, on screen display and the digital video encoder are connected via a 32-bit system bus with the processor cores. The MediaSoC322xA is fabricated in a 0.18um 6LM standard-cell SMIC CMOS technology, occupies about 20mm2, and operates at 180MHz. The MeidaSoC322xA are used to audio/video decoder for embedded multimedia application.

  3. Improving Primary Health Care in Chronic Musculoskeletal Conditions through Digital Media: The PEOPLE Meeting

    PubMed Central

    Cott, Cheryl; Jones, C Allyson; Badley, Elizabeth M; Davis, Aileen M

    2013-01-01

    Background Musculoskeletal (MSK) conditions are the most common cause of severe chronic pain and disability worldwide. Despite the impact of these conditions, disparity exists in accessing high quality basic care. As a result, effective treatments do not always reach people who need services. The situation is further hampered by the current models of care that target resources to a limited area of health services (eg, joint replacement surgery), rather than the entire continuum of MSK health, which includes services provided by primary care physicians and health professionals. The use of digital media offers promising solutions to improve access to services. However, our knowledge in this field is limited. To advance the use of digital media in improving MSK care, we held a research planning meeting entitled “PEOPLE: Partnership to Enable Optimal Primary Health Care by Leveraging Digital Media in Musculoskeletal Health”. This paper reports the discussion during the meeting. Objective The objective of this study was to: (1) identify research priorities relevant to using digital media in primary health care for enhancing MSK health, and (2) develop research collaboration among researchers, clinicians, and patient/consumer communities. Methods The PEOPLE meeting included 26 participants from health research, computer science/digital media, clinical communities, and patient/consumer groups. Based on consultations with each participant prior to the meeting, we chose to focus on 3 topics: (1) gaps and issues in primary health care for MSK health, (2) current application of digital media in health care, and (3) challenges to using digital media to improve MSK health in underserviced populations. Results The 2-day discussion led to emergence of 1 overarching question and 4 research priorities. A main research priority was to understand the characteristics of those who are not able to access preventive measures and treatment for early MSK diseases. Participants

  4. A new quality assessment and improvement system for print media

    NASA Astrophysics Data System (ADS)

    Liu, Mohan; Konya, Iuliu; Nandzik, Jan; Flores-Herr, Nicolas; Eickeler, Stefan; Ndjiki-Nya, Patrick

    2012-12-01

    Print media collections of considerable size are held by cultural heritage organizations and will soon be subject to digitization activities. However, technical content quality management in digitization workflows strongly relies on human monitoring. This heavy human intervention is cost intensive and time consuming, which makes automization mandatory. In this article, a new automatic quality assessment and improvement system is proposed. The digitized source image and color reference target are extracted from the raw digitized images by an automatic segmentation process. The target is evaluated by a reference-based algorithm. No-reference quality metrics are applied to the source image. Experimental results are provided to illustrate the performance of the proposed system. We show that it features a good performance in the extraction as well as in the quality assessment step compared to the state-of-the-art. The impact of efficient and dedicated quality assessors on the optimization step is extensively documented.

  5. Commentary: The relationship status of digital media and professionalism: it's complicated.

    PubMed

    Farnan, Jeanne M; Paro, John A M; Higa, Jennifer T; Reddy, Shalini T; Humphrey, Holly J; Arora, Vineet M

    2009-11-01

    The rising popularity of digital applications, such as social networking, media share sites, and blogging, has significantly affected how medical trainees interact with educators, colleagues, and the public. Despite the increased popularity and use of such applications amongst the current generation of trainees, medical educators have little evidence or guidance about preventing misuse and ensuring standards for professional conduct. As trainees become more technologically savvy, it is the responsibility of medical educators to familiarize themselves not only with the advantages of this technology but also with the potential negative effects of its misuse. Professionalism, appropriateness for public consumption, and individual or institutional representation in digital media content are just some of the salient issues that arise when considering the ramifications of trainees' digital behavior in the absence of established policies or education on risk. In this commentary the authors explore the rising use of digital media and its reflection of medical trainees' professionalism. To address possible issues related to professionalism in digital media, the authors hypothesize potential solutions, including exploring faculty familiarity with digital media and policy development, educating students on the potential risks of misuse, and modeling professionalism in this new digital age. PMID:19858794

  6. Digital Imaging and the Cognitive Revolution: A Media Challenge.

    ERIC Educational Resources Information Center

    Sartorius, Ute

    This paper discusses the role of digital technology within the cognitive revolution of the perception of images. It analyzes the traditional values placed on images as a source of cognition. These values are discussed in terms of the ethical and social issues raised by the use of digital image manipulation in so far as the digital era is falsely…

  7. Digital and Media Literacy: A Plan of Action. A White Paper on the Digital and Media Literacy Recommendations of the Knight Commission on the Information Needs of Communities in a Democracy

    ERIC Educational Resources Information Center

    Hobbs, Renee

    2010-01-01

    This report proposes a detailed plan that positions digital and media literacy as an essential life skill and outlines steps that policymakers, educators, and community advocates can take to help Americans thrive in the digital age. It offers a plan of action for how to bring digital and media literacy education into formal and informal settings…

  8. Designing Social Media for Informal Learning and Knowledge Maturing in the Digital Workplace

    ERIC Educational Resources Information Center

    Ravenscroft, A.; Schmidt, A.; Cook, J.; Bradley, C.

    2012-01-01

    This paper presents an original approach to designing social media that support informal learning in the digital workplace. It adapts design-based research to take into account the embeddedness of interactions within digitally mediated work-based contexts. The approach is demonstrated through the design, implementation, and evaluation of software…

  9. Student-Created Digital Media and Engagement in Middle School History

    ERIC Educational Resources Information Center

    Alexander, Curby

    2014-01-01

    In this study, student engagement during classroom activities was investigated where sixth graders created digital media projects using historical images. The study employed a qualitative design involving observations, student artifacts, and interviews while students were creating digital storyboards using a Web-based application developed for…

  10. The Ecology Model of Learning: Evaluating Digital Media Applications (DMAs) Using Established Ecological Subsystems of Learning

    ERIC Educational Resources Information Center

    Folkestad, James E.; Banning, James

    2010-01-01

    Digital media applications (DMAs) have emerged in abundance over the last ten years. Enabled by exponential growth in computing power and inexpensive data storage, these applications are easy to use and inexpensive (often free) to own. DMAs not only allow users to produce digital content efficiently they allow users to exploit the connective power…

  11. 37 CFR 201.27 - Initial notice of distribution of digital audio recording devices or media.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2011-07-01 2011-07-01 false Initial notice of distribution of digital audio recording devices or media. 201.27 Section 201.27 Patents, Trademarks, and Copyrights COPYRIGHT OFFICE, LIBRARY OF CONGRESS COPYRIGHT OFFICE AND PROCEDURES GENERAL PROVISIONS § 201.27 Initial notice of distribution of digital...

  12. 37 CFR 201.28 - Statements of Account for digital audio recording devices or media.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 37 Patents, Trademarks, and Copyrights 1 2011-07-01 2011-07-01 false Statements of Account for digital audio recording devices or media. 201.28 Section 201.28 Patents, Trademarks, and Copyrights COPYRIGHT OFFICE, LIBRARY OF CONGRESS COPYRIGHT OFFICE AND PROCEDURES GENERAL PROVISIONS § 201.28 Statements of Account for digital audio...

  13. Composing across Multiple Media: A Case Study of Digital Video Production in a Fifth Grade Classroom

    ERIC Educational Resources Information Center

    Ranker, Jason

    2008-01-01

    This is a qualitative case study of two students' composing processes as they developed a documentary video about the Dominican Republic in an urban, public middle school classroom. While using a digital video editing program, the students moved across multiple media (the Web, digital video, books, and writing), drawing semiotic resources from…

  14. In Defence of Writing: A Social Semiotic Perspective on Digital Media, Literacy and Learning

    ERIC Educational Resources Information Center

    Skaar, Havard

    2009-01-01

    From a learning perspective, social semiotics researchers tend to focus on the liberation latent in the multimedia options available through the new media. It is true that digital media democratise the possibilities open to the general public of a more varied and comprehensive text production than ever before, both in and outside school.…

  15. What's in a Name? The Anatomy of Defining New/Multi/Modal/Digital/Media Texts

    ERIC Educational Resources Information Center

    Lauer, Claire

    2012-01-01

    In a 2009 "Computers and Composition" article, I examined how the terms multimedia and multimodal were used in academic and industry situations. This webtext extends that argument to investigate the ways in which a variety of other terms, including digital media and new media, are defined by scholars in the fields of computers and composition and…

  16. Design Considerations in the Development and Delivery of Digital Learning Media.

    ERIC Educational Resources Information Center

    Brittain, Michael; Chambers, Mark; Marriott, Philip

    This paper reports on the first phase of a research project undertaken by a team at the University of South Australia and Victoria University of Wellington (New Zealand) to design and deliver educational applications of digital learning media and to identify criteria for assessment of the efficacy and quality of the use of such media from a…

  17. Interactive digital image manipulation system

    NASA Technical Reports Server (NTRS)

    Henze, J.; Dezur, R.

    1975-01-01

    The system is designed for manipulation, analysis, interpretation, and processing of a wide variety of image data. LANDSAT (ERTS) and other data in digital form can be input directly into the system. Photographic prints and transparencies are first converted to digital form with an on-line high-resolution microdensitometer. The system is implemented on a Hewlett-Packard 3000 computer with 128 K bytes of core memory and a 47.5 megabyte disk. It includes a true color display monitor, with processing memories, graphics overlays, and a movable cursor. Image data formats are flexible so that there is no restriction to a given set of remote sensors. Conversion between data types is available to provide a basis for comparison of the various data. Multispectral data is fully supported, and there is no restriction on the number of dimensions. In this way multispectral data collected at more than one point in time may simply be treated as a data collected with twice (three times, etc.) the number of sensors. There are various libraries of functions available to the user: processing functions, display functions, system functions, and earth resources applications functions.

  18. The Role of After-School Digital Media Clubs in Closing Participation Gaps and Expanding Social Networks

    ERIC Educational Resources Information Center

    Vickery, Jacqueline Ryan

    2014-01-01

    This article considers how after-school digital media clubs, as an example of informal learning, can provide meaningful opportunities for youth to participate in the creation of interest-driven learning ecologies through media production. Ethnographic research was conducted in two after-school digital media clubs at a large, ethnically diverse,…

  19. Digital item for digital human memory--television commerce application: family tree albuming system

    NASA Astrophysics Data System (ADS)

    Song, Jaeil; Lee, Hyejoo; Hong, JinWoo

    2004-01-01

    Technical advance in creating, storing digital media in daily life enables computers to capture human life and remember it as people do. A critical point with digitizing human life is how to recall bits of experience that are associated by semantic information. This paper proposes a technique for structuring dynamic digital object based on MPEG-21 Digital Item (DI) in order to recall human"s memory and providing interactive TV service on family tree albuming system as one of its applications. DIs are a dynamically reconfigurable, uniquely identified, described by a descriptor language, logical unit for structuring relationship among multiple media resources. Digital Item Processing (DIP) provides the means to interact with DIs to remind context to user, with active properties where objects have executable properties. Each user can adapt DIs" active properties to tailor the behavior of DIs to match his/her own specific needs. DIs" technologies in Intellectual Property Management and Protection (IPMP) can be used for privacy protection. In the interaction between the social space and technological space, the internal dynamics of family life fits well sharing family albuming service via family television. Family albuming service can act as virtual communities builders for family members. As memory is shared between family members, multiple annotations (including active properties on contextual information) will be made with snowballing value.

  20. System for objective assessment of image differences in digital cinema

    NASA Astrophysics Data System (ADS)

    Fliegel, Karel; Krasula, Lukáš; Páta, Petr; Myslík, Jiří; Pecák, Josef; Jícha, Marek

    2014-09-01

    There is high demand for quick digitization and subsequent image restoration of archived film records. Digitization is very urgent in many cases because various invaluable pieces of cultural heritage are stored on aging media. Only selected records can be reconstructed perfectly using painstaking manual or semi-automatic procedures. This paper aims to answer the question what are the quality requirements on the restoration process in order to obtain acceptably close visual perception of the digitally restored film in comparison to the original analog film copy. This knowledge is very important to preserve the original artistic intention of the movie producers. Subjective experiment with artificially distorted images has been conducted in order to answer the question what is the visual impact of common image distortions in digital cinema. Typical color and contrast distortions were introduced and test images were presented to viewers using digital projector. Based on the outcome of this subjective evaluation a system for objective assessment of image distortions has been developed and its performance tested. The system utilizes calibrated digital single-lens reflex camera and subsequent analysis of suitable features of images captured from the projection screen. The evaluation of captured image data has been optimized in order to obtain predicted differences between the reference and distorted images while achieving high correlation with the results of subjective assessment. The system can be used to objectively determine the difference between analog film and digital cinema images on the projection screen.

  1. DDL system: Design systhesis of digital systems

    NASA Technical Reports Server (NTRS)

    Shiva, S. G.

    1983-01-01

    Digital Systems Design Language was integrated into the CADAT system environment of NASA-MSFC. The major technical aspects of this integration are summarized. Automatic hardware synthesis is now possible starting with a high level description of the system to be synthesized. The DDL system provides a high level design verification capability, thereby minimizing design changes in the later stages of the design cycle. An overview of the DDL system covering the translation, simulation and synthesis capabilities is provided. Two companion documents (the user's and programmer's manuals) are to be consulted for detailed discussions.

  2. A Prototype Digital Image Management System

    PubMed Central

    Dwyer, Samuel J.; Templeton, Arch W.; Anderson, William H.; Tarlton, Mark A.; Hensley, Kenneth S.; Lee, Kyo Rak; Batnitzky, Solomon; Rosenthal, Stanton J.; Johnson, Joy A.; Preston, David F.

    1983-01-01

    A prototype digital image management system has been designed, implemented and is being evaluated by our department. The system satisfies two major requirements: (a) an on-line access, rapid response microcomputer network providing 9 day archiving of digital data; (b) a long-term, low demand archiving system. This paper provides an estimate of the cost of the system, the potential cost-savings, and identifies the digital data throughput using the Ethernet communications protocol. ImagesFigure 4

  3. Media and Education in the Digital Age: Concepts, Assessments, Subversions

    ERIC Educational Resources Information Center

    Stocchetti, Matteo, Ed.

    2014-01-01

    This book is an invitation to informed and critical participation in the current debate on the role of digital technology in education and a comprehensive introduction to the most relevant issues in this debate. After an early wave of enthusiasm about the emancipative opportunities of the digital "revolution" in education, recent…

  4. Digital Media and "Girling" at an Elite Girls' School

    ERIC Educational Resources Information Center

    Charles, Claire

    2007-01-01

    In this article, I draw on Judith Butler's notion of performativity to investigate the role of digital technologies in processes of gendered subjectification (or "girling") in elite girls' education. Elite girls' schooling is a site where the potential of digital technologies in mediating student-led constructions and explorations of "femininity"…

  5. Multirate digital control system design

    NASA Technical Reports Server (NTRS)

    Berg, Martin C.; Amit, Naftali; Powell, J. David

    1988-01-01

    Methods for multirate digital control system design are discussed. A simple method for sampling rate selection based on control bandwidths is proposed. Methods for generating a discrete-time state model of a sampled-data plant and a discrete-time equivalent to an analog cost function for a sampled-data plant are described. The succesive loop closures and linear quadratic Gaussian synthesis methods are reviewed, and a constrained optimization synthesis method is introduced. The proposed sampling rate selection, discretization, and synthesis methods are applied to two example design problems. Multirate and single-rate compensators synthesized by the different methods are compared, based on closed-loop responses, with compensators having the same real-time computation load.

  6. Fast Erase Method and Apparatus For Digital Media

    NASA Technical Reports Server (NTRS)

    Oakely, Ernest C. (Inventor)

    2006-01-01

    A non-contact fast erase method for erasing information stored on a magnetic or optical media. The magnetic media element includes a magnetic surface affixed to a toroidal conductor and stores information in a magnetic polarization pattern. The fast erase method includes applying an alternating current to a planar inductive element positioned near the toroidal conductor, inducing an alternating current in the toroidal conductor, and heating the magnetic surface to a temperature that exceeds the Curie-point so that information stored on the magnetic media element is permanently erased. The optical disc element stores information in a plurality of locations being defined by pits and lands in a toroidal conductive layer. The fast erase method includes similarly inducing a plurality of currents in the optical media element conductive layer and melting a predetermined portion of the conductive layer so that the information stored on the optical medium is destroyed.

  7. Benefits of digital thoracic drainage systems.

    PubMed

    Danitsch, Debbie

    A number of risks and complications are associated with traditional chest drainage systems. A trust decided to trial digital drainage systems, and found the new systems improved treatment time and patient mobility. PMID:22536712

  8. Effects of Digital Footprint on Career Management: Evidence from Social Media in Business Education

    NASA Astrophysics Data System (ADS)

    Benson, Vladlena; Filippaios, Fragkiskos

    As online social media gain immense popularity among Internet users, we would like to explore the implication of social networking on career management. This paper links social capital theories and the impact of online social networks on ties between individuals in social and business uses. Social media contributes to building up individual digital footprint, or Internet content linked to individual names. We then propose a typology of the digital footprint based on the evidence from a survey of business students. Discussion of the implications of the study and arising research questions conclude the article.

  9. The use of digital media by women using the maternity services in a developed country.

    PubMed

    O'Higgins, A; Murphy, O C; Egan, A; Mullaney, L; Sheehan, S; Turner, M J

    2014-01-01

    The provision of high quality healthcare information about pregnancy is important to women and to healthcare professionals and it is 1 driven, in part, by a desire to improve clinical outcomes,. The objective of this study was to examine the use of digital media by women' to access pregnancy information. A questionnaire was distributed to women attending a large maternity hospital. Of the 522 respondents, the mean age was 31.8 years, 45% (235/522) were nulliparous, 62% (324/522) lived in the capital city and 29% (150/522) attended the hospital as private patients. Overall 95% (498/522) used the internet for pregnancy information, 76% (399/522) had a smartphone and 59% (235/399) of smartphone owners had used a pregnancy smartapp. The nature of internet usage for pregnancy information included discussion forums (70%), social networks (67%), video media (48%), e-books (15%), blogs (13%), microblogs (9%) and podcasts (4%). Even women who were socially disadvantaged reported high levels of digital media usage. In contemporary maternity care women use digital media extensively for pregnancy information. All maternity services should have a digital media strategy. PMID:25556255

  10. Superconductor Digital-RF Receiver Systems

    NASA Astrophysics Data System (ADS)

    Mukhanov, Oleg A.; Kirichenko, Dmitri; Vernik, Igor V.; Filippov, Timur V.; Kirichenko, Alexander; Webber, Robert; Dotsenko, Vladimir; Talalaevskii, Andrei; Tang, Jia Cao; Sahu, Anubhav; Shevchenko, Pavel; Miller, Robert; Kaplan, Steven B.; Sarwana, Saad; Gupta, Deepnarayan

    Digital superconductor electronics has been experiencing rapid maturation with the emergence of smaller-scale, lower-cost communications applications which became the major technology drivers. These applications are primarily in the area of wireless communications, radar, and surveillance as well as in imaging and sensor systems. In these areas, the fundamental advantages of superconductivity translate into system benefits through novel Digital-RF architectures with direct digitization of wide band, high frequency radio frequency (RF) signals. At the same time the availability of relatively small 4K cryocoolers has lowered the foremost market barrier for cryogenically-cooled digital electronic systems. Recently, we have achieved a major breakthrough in the development, demonstration, and successful delivery of the cryocooled superconductor digital-RF receivers directly digitizing signals in a broad range from kilohertz to gigahertz. These essentially hybrid-technology systems combine a variety of superconductor and semiconductor technologies packaged with two-stage commercial cryocoolers: cryogenic Nb mixed-signal and digital circuits based on Rapid Single Flux Quantum (RSFQ) technology, room-temperature amplifiers, FPGA processing and control circuitry. The demonstrated cryocooled digital-RF systems are the world's first and fastest directly digitizing receivers operating with live satellite signals in X-band and performing signal acquisition in HF to L-band at ˜30GHz clock frequencies.

  11. Digital Social Norm Enforcement: Online Firestorms in Social Media.

    PubMed

    Rost, Katja; Stahel, Lea; Frey, Bruno S

    2016-01-01

    Actors of public interest today have to fear the adverse impact that stems from social media platforms. Any controversial behavior may promptly trigger temporal, but potentially devastating storms of emotional and aggressive outrage, so called online firestorms. Popular targets of online firestorms are companies, politicians, celebrities, media, academics and many more. This article introduces social norm theory to understand online aggression in a social-political online setting, challenging the popular assumption that online anonymity is one of the principle factors that promotes aggression. We underpin this social norm view by analyzing a major social media platform concerned with public affairs over a period of three years entailing 532,197 comments on 1,612 online petitions. Results show that in the context of online firestorms, non-anonymous individuals are more aggressive compared to anonymous individuals. This effect is reinforced if selective incentives are present and if aggressors are intrinsically motivated. PMID:27315071

  12. Digital Social Norm Enforcement: Online Firestorms in Social Media

    PubMed Central

    Rost, Katja; Stahel, Lea; Frey, Bruno S.

    2016-01-01

    Actors of public interest today have to fear the adverse impact that stems from social media platforms. Any controversial behavior may promptly trigger temporal, but potentially devastating storms of emotional and aggressive outrage, so called online firestorms. Popular targets of online firestorms are companies, politicians, celebrities, media, academics and many more. This article introduces social norm theory to understand online aggression in a social-political online setting, challenging the popular assumption that online anonymity is one of the principle factors that promotes aggression. We underpin this social norm view by analyzing a major social media platform concerned with public affairs over a period of three years entailing 532,197 comments on 1,612 online petitions. Results show that in the context of online firestorms, non-anonymous individuals are more aggressive compared to anonymous individuals. This effect is reinforced if selective incentives are present and if aggressors are intrinsically motivated. PMID:27315071

  13. Professionalism in a digital age: opportunities and considerations for using social media in health care.

    PubMed

    Gagnon, Kendra; Sabus, Carla

    2015-03-01

    Since the beginning of the millennium, there has been a remarkable change in how people access and share information. Much of this information is user-generated content found on social media sites. As digital technologies and social media continue to expand, health care providers must adapt their professional communication to meet the expectations and needs of consumers. This adaptation may include communication on social media sites. However, many health care providers express concerns that professional social media use, particularly interactions with patients, is ethically problematic. Social media engagement does not create ethical dissonance if best practices are observed and online communication adheres to terms of service, professional standards, and organizational policy. A well-executed social media presence provides health care providers, including physical therapists, the opportunity-and perhaps a professional obligation-to use social media sites to share or create credible health care information, filling a consumer void for high-quality online information on fitness, wellness, and rehabilitation. This perspective article provides a broad review of the emergence of social media in society and health care, explores policy implications of organizational adoption of health care social media, and proposes individual opportunities and guidelines for social media use by the physical therapy professional. PMID:24903111

  14. Digital flight control actuation system study

    NASA Technical Reports Server (NTRS)

    Rossing, R.; Hupp, R.

    1974-01-01

    Flight control actuators and feedback sensors suitable for use in a redundant digital flight control system were examined. The most appropriate design approach for an advanced digital flight control actuation system for development and use in a fly-by-wire system was selected. The concept which was selected consisted of a PM torque motor direct drive. The selected system is compatible with concurrent and independent development efforts on the computer system and the control law mechanizations.

  15. Digital Natives and Social Media Behaviors: An Overview

    ERIC Educational Resources Information Center

    Lusk, Brooke

    2010-01-01

    Internet usage has dramatically increased over the past decade, and adolescents, or digital natives as they are sometimes called, are readily immersing themselves in life online. In the past ten years, teens' use of the internet has risen from just under 75% of teens in 2000 to over 93% in 2009. With so many teens online and able to access the…

  16. Digital Media and Education: Cognitive Impact of Information Visualization.

    ERIC Educational Resources Information Center

    Kraidy, Ute

    2002-01-01

    Argues that like other technological innovations, the rise of the digital information age is contributing to shape people's mode of cognition. Reviews the use of computers in teaching and learning in terms of their impact on our ability to process parallel data, access information in a non-linear order, and visualize information. (Author/LRW)

  17. The Layering of Mathematical Interpretations through Digital Media

    ERIC Educational Resources Information Center

    Calder, Nigel

    2012-01-01

    How might understanding emerge when learners engage mathematical phenomena through digital technologies? This paper considers the ways children's mathematical thinking was influenced by their interpretations through various pedagogical discourses and how understanding emerged through those various filters. Current research into using digital…

  18. Our Shared Future: Social Media, Leadership, Vulnerability, and Digital Identity

    ERIC Educational Resources Information Center

    Stoller, Eric

    2013-01-01

    Social media have challenged us in our journey to support our students. Administrators have entered into new web-based conversations with one another and with their students. Personal branding has created a sense of performativity that conflicts with a growing trend towards online vulnerability. Our leaders have increasingly been engaged in…

  19. Activism or "Slacktivism?": Digital Media and Organizing for Social Change

    ERIC Educational Resources Information Center

    Glenn, Cerise L.

    2015-01-01

    The influence of social media and technological developments has changed how groups and organizations advocating for social change generate awareness and participation in their causes. In this single class activity students will (a) analyze notions of activism and "slacktivism" from scholarly and popular sources to apply these concepts…

  20. Digital and Media Literacy: Connecting Culture and Classroom

    ERIC Educational Resources Information Center

    Hobbs, Renee

    2011-01-01

    Today's students tweet, text, and navigate apps up to 12 hours each day, but they may not know how to effectively analyze a TV show or website. Award-winning author Renee Hobbs demonstrates how to incorporate media literacy into the secondary classroom, providing the tools teachers need to: (1) Effectively foster students' critical thinking,…

  1. Living the Orwellian Nightmare: New Media and Digital Dystopia

    ERIC Educational Resources Information Center

    Diglin, Greg

    2014-01-01

    This article offers an academic critique of new media culture, as viewed comparatively with George Orwell's "1984." The author makes the argument that a number of plot elements of "1984" are reflected within contemporary Western societies. The assertion is made that these parallels have developed as a consequence of new…

  2. (Re)Writing Civics in the Digital Age: The Role of Social Media in Student (Dis)Engagement

    ERIC Educational Resources Information Center

    Portman Daley, Joannah

    2012-01-01

    (Re)Writing Civics in the Digital Age: The Role of Social Media in Student (Dis)Engagement addresses an important gap in the knowledge of civic rhetoric available in Rhetoric and Composition by using qualitative methods to explore the parameters of civic engagement through social media-based digital writing. With funding from URI's Office of…

  3. New Media but Same Old Tricks: Food Marketing to Children in the Digital Age.

    PubMed

    Kelly, Bridget; Vandevijvere, Stefanie; Freeman, Becky; Jenkin, Gabrielle

    2015-03-01

    'New media' refers to digital technologies, which offer unmatched opportunities for food companies to engage with young people. This paper explores the emergence of food marketing using new media, the potential impact of this marketing on young people, and current and potential policy responses to limit exposure to these promotions. Foremost in any informed policy discussion is the need for robust evidence to demonstrate the need for intervention. In this case, such evidence relates to the extent of children's exposures to commercial food promotions via new media, and the nature of these promotions. Approaches to, and challenges of, collecting and assessing these data are discussed. There is accumulating evidence that food marketing on new media is increasing and influences children's food preferences and choices. The impact of integrated campaigns, which reinforce commercial messages across multiple platforms, and of new media, which engage personally with potential consumers, is likely to be greater than that of traditional marketing. PMID:26627088

  4. Enabling Science Integration through the Marine Geoscience Data System Media Bank

    NASA Astrophysics Data System (ADS)

    Leung, A.; Ferrini, V.; Arko, R.; Carbotte, S. M.; Goehring, L.; Simms, E.

    2008-12-01

    The Marine Geoscience Data System Media Bank (http://media.marine-geo.org) was constructed to enable the sharing of high quality images, illustrations and animations among members of the science community and to provide a new forum for education and public outreach (EPO). The initial focus of Media Bank was to serve Ridge 2000 research and EPO efforts, but it was constructed as a flexible system that could accommodate media from other multidisciplinary marine geoscience research initiatives. Media Bank currently contains digital photographs, maps, 3-D visualizations, and video clips from the Ridge 2000 and MARGINS focus sites as well as the Antarctic and Southern Ocean. We actively seek contributions of other high quality marine geoscience media for inclusion in Media Bank. Media Bank is driven by a relational database backend, enabling image browsing, sorting by category, keyword search functionality, and the creation of media galleries. All media are accompanied by a descriptive figure caption that provides easy access to expert knowledge to help foster data integration across disciplines as well as EPO efforts. In addition to access to high quality media, Media Bank also provides basic metadata including geographic position, investigator name and affiliation, as well as copyright information, and links to references and relevant data sets. Since media are tied to geospatial coordinates, a map-based interface is also provided for access to media.

  5. Integrating Metrics across the Marketing Curriculum: The Digital and Social Media Opportunity

    ERIC Educational Resources Information Center

    Spiller, Lisa; Tuten, Tracy

    2015-01-01

    Modern digital and social media formats have revolutionized marketing measurement, producing an abundance of data, meaningful metrics, new tools, and methodologies. This increased emphasis on metrics in the marketing industry signifies the need for increased quantitative and critical thinking content in our marketing coursework if we are to…

  6. We Interrupt This Program: Media Theorist Douglas Rushkoff Has Second Thoughts about Our Digital Practices

    ERIC Educational Resources Information Center

    Rushkoff, Douglas

    2011-01-01

    When asked what Facebook is for, kids will say that it's there to help them make friends. The kids the author celebrated in his early books as "digital natives," capable of seeing through all efforts of big media and marketing, have actually proven less able to discern the integrity of the sources they read and the intentions of the programs they…

  7. Computer Skills and Digital Media Uses among Young Students in Rio de Janeiro

    ERIC Educational Resources Information Center

    Duarte, Rosalia; Cazelli, Sibele; Migliora, Rita; Coimbra, Carlos

    2013-01-01

    The main purpose of this paper is provide information relevant for the formulation of new policies for the integration of technology in education from the discussion of research results that analyse computer skills and digital media uses among students (between 12 to 18 years old) from schools in the city of Rio de Janeiro, Brazil. The schools…

  8. Writing Programs as Distributed Networks: A Materialist Approach to University-Community Digital Media Literacy

    ERIC Educational Resources Information Center

    Comstock, Michelle

    2006-01-01

    This article addresses how community-university digital media literacy projects are redefining literacy, literate practices, and institutions. Using Actor-Network Theory (ANT), which emphasizes the organizing process itself, I analyze the shifting definitions of literacy within one particular university-community collaboration. My analysis…

  9. Children's Media Culture in the New Millennium: Mapping the Digital Landscape.

    ERIC Educational Resources Information Center

    Montgomery, Kathryn C.

    2000-01-01

    Describes technological, demographic, and market forces shaping the new digital media culture and the various Web sites being created for children and teens, explaining how heavily-promoted commercial sites overshadow educational sites. Discusses efforts to create safe Internet zones for children. Recommends actions to promote development of a…

  10. Effects of Cognitive Styles on 2D Drafting and Design Performance in Digital Media

    ERIC Educational Resources Information Center

    Pektas, Sule Tasli

    2010-01-01

    This paper investigates the interactions between design students' cognitive styles, as measured by Riding's Cognitive Styles Analysis, and performance in 2D drafting and design tasks in digital media. An empirical research revealed that Imager students outperformed Verbalisers in both drafting and creativity scores. Wholist-Analytic cognitive…

  11. Fueling a Third Paradigm of Education: The Pedagogical Implications of Digital, Social and Mobile Media

    ERIC Educational Resources Information Center

    Pavlik, John V.

    2015-01-01

    Emerging technologies are fueling a third paradigm of education. Digital, networked and mobile media are enabling a disruptive transformation of the teaching and learning process. This paradigm challenges traditional assumptions that have long characterized educational institutions and processes, including basic notions of space, time, content,…

  12. Critical Democracy through Digital Media Production in a Third-Grade Classroom

    ERIC Educational Resources Information Center

    Montgomery, Sarah E.

    2014-01-01

    This article explores the ways that alternative digital media production by elementary students can support education for critical democracy. The article centers on a collaborative, qualitative study in which students in a 3rd-grade class at a Title One school created and disseminated podcasts about issues of historical injustice rooted in the key…

  13. Transformative Power of Digital Citizenship: Critical Perspectives on Culture, New Media and Pedagogy

    ERIC Educational Resources Information Center

    Kurubacak, Gulsun

    2007-01-01

    This paper discusses culture, as a source of conflict than of synergy, how affects the use of new media to build digital citizenships. It also argues that the cultural dimensions of Geert Hofstede, who demonstrates that there are national and regional cultural groupings that affect the behavior of organizations, are very persistent across time.…

  14. Transformative Power of Digital Citizenship: Critical Perspectives on Culture, New Media and Pedagogy

    ERIC Educational Resources Information Center

    Kurubacak, Gulsun

    2007-01-01

    This paper discusses culture, as a source of conflict than of synergy, and how it affects the use of new media to build digital citizenships. It also argues that the cultural dimensions of Geert Hofsteded, who demonstrates that there are national and regional cultural groupings that affect behavior of organizations, are very persistent across…

  15. Improvization and Strategic Risk-Taking in Informal Learning with Digital Media Literacy

    ERIC Educational Resources Information Center

    Hobbs, Renee

    2013-01-01

    The city provides a rich array of learning opportunities for young children. However, in many urban schools, often it can be logistically difficult to get young children out of the building. But when elementary children are encouraged to view the city as a classroom and use digital media to explore and represent their neighborhoods, they can be…

  16. Work Place Oriented Learning With Digital Media--Consequences for Competency Development

    ERIC Educational Resources Information Center

    Spottl, Georg; Schulte, Sven; Grantz, Torsten

    2012-01-01

    Due to their increasing availability and prevalence, digital media allow for a relocation of learning to work processes and support work process oriented learning. This can be put into practice with the aid of different medial/technological and didactical settings. Some examples are the application of mobile terminals, interactive platforms, or…

  17. Does Using Digital Media in Assessment Affect Teacher Practices in Infant and Toddler Classrooms?

    ERIC Educational Resources Information Center

    Tanyel, Nur; Knopf, Herman T.

    2011-01-01

    Child outcome studies consistently emphasize the effects of quality childcare on the early development of young children. The purpose of this pilot study was to examine the effects of assessment training and digital media on teacher-child interactions measured using the Caregiver Child Interaction Scale (CCIS). The participants included six infant…

  18. Current Issues and Trends in Multidimensional Sensing Technologies for Digital Media

    NASA Astrophysics Data System (ADS)

    Nagata, Noriko; Ohki, Hidehiro; Kato, Kunihito; Koshimizu, Hiroyasu; Sagawa, Ryusuke; Fujiwara, Takayuki; Yamashita, Atsushi; Hashimoto, Manabu

    Multidimensional sensing (MDS) technologies have numerous applications in the field of digital media, including the development of audio and visual equipment for human-computer interaction (HCI) and manufacture of data storage devices; furthermore, MDS finds applications in the fields of medicine and marketing, i.e., in e-marketing and the development of diagnosis equipment.

  19. Learning in the Cloud: How (and Why) to Transform Schools with Digital Media

    ERIC Educational Resources Information Center

    Warschauer, Mark

    2011-01-01

    This comprehensive and cutting-edge book portrays a vision of how digital media can help transform schools, and what kinds of curriculum, pedagogy, assessment, infrastructure, and learning environments are necessary for that transformation to take place. The author and his research team spent thousands of hours observing classes and interviewing…

  20. Digital hydraulic valving system. [design and development

    NASA Technical Reports Server (NTRS)

    1973-01-01

    The design and development are reported of a digital hydraulic valving system that would accept direct digital inputs. Topics include: summary of contractual accomplishments, design and function description, valve parameters and calculations, conclusions, and recommendations. The electrical control circuit operating procedure is outlined in an appendix.

  1. A multi-channel waveform digitizer system

    SciTech Connect

    Bieser, F.; Muller, W.F.J. )

    1990-04-01

    The authors report on the design and performance of a multichannel waveform digitizer system for use with the Multiple Sample Ionization Chamber (MUSIC) Detector at the Bevalac. 128 channels of 20 MHz Flash ADC plus 256 word deep memory are housed in a single crate. Digital thresholds and hit pattern logic facilitate zero suppression during readout which is performed over a standard VME bus.

  2. imCast: Studio-Quality Digital Media Platform Exploiting Broadband IP Networks

    NASA Astrophysics Data System (ADS)

    Jo, Jinyong; Kim, Jongwon

    The recent growth in available network bandwidth envisions the wide-spread use of broadband applications such as uncompressed HD-SDI (High-definition serial digital interface) over IP. These cutting-edge applications are also driving the development of a media-oriented infrastructure for networked collaboration. This paper introduces imCast, a high-quality digital media platform dealing with uncompressed HD-SDI over IP, and discusses its internal architecture in depth. imCast mainly provides cost-effective hardware-based approaches for high-quality media acquisition and presentation; flexible software-based approaches for presentation; and allows for economical network transmission. Experimental results (taken over best-effort IP networks) will demonstrate the functional feasibility and performance of imCast.

  3. Digital Video Over Space Systems and Networks

    NASA Technical Reports Server (NTRS)

    Grubbs, Rodney

    2010-01-01

    This slide presentation reviews the use of digital video with space systems and networks. The earliest use of video was the use of film precluding live viewing, which gave way to live television from space. This has given way to digital video using internet protocol for transmission. This has provided for many improvements with new challenges. Some of these ehallenges are reviewed. The change to digital video transmitted over space systems can provide incredible imagery, however the process must be viewed as an entire system, rather than piece-meal.

  4. Five-Picture Charades: A Flexible Model for Technology Training in Digital Media Tools and Teaching Strategies

    ERIC Educational Resources Information Center

    Alexander, Curby; Hammond, Thomas C.

    2012-01-01

    In this article the authors present Five-Picture Charades, an instructional activity designed to introduce preservice and in-service teachers to the technical and pedagogical uses of digital images in the classroom. Because digital images can be repurposed into several different types of digital media projects, Five-Picture Charades is described…

  5. Modular digital holographic fringe data processing system

    NASA Technical Reports Server (NTRS)

    Downward, J. G.; Vavra, P. C.; Schebor, F. S.; Vest, C. M.

    1985-01-01

    A software architecture suitable for reducing holographic fringe data into useful engineering data is developed and tested. The results, along with a detailed description of the proposed architecture for a Modular Digital Fringe Analysis System, are presented.

  6. Digital control system for space structural dampers

    NASA Technical Reports Server (NTRS)

    Haviland, J. K.

    1984-01-01

    Digital control systems for space structural dampers, also referred to as inertia or proof-mass dampers are investigated. A damper concept is improved by adding a small taper to the proof-mass, and using a proximeter to determine position. Another damper using a three inch stroke rather than the standard one inch stroke is described. Provisions are made for a relative velocity feedback. In one approach, the digital controller is modified to accept the signal from a linear velocity transducer. In the other, the velocity feedback is included in the digital program. An overall system concept for the use of the dampers is presented.

  7. Experimental OAI-Based Digital Library Systems

    NASA Technical Reports Server (NTRS)

    Nelson, Michael L. (Editor); Maly, Kurt (Editor); Zubair, Mohammad (Editor); Rusch-Feja, Diann (Editor)

    2002-01-01

    The objective of Open Archives Initiative (OAI) is to develop a simple, lightweight framework to facilitate the discovery of content in distributed archives (http://www.openarchives.org). The focus of the workshop held at the 5th European Conference on Research and Advanced Technology for Digital Libraries (ECDL 2001) was to bring researchers in the area of digital libraries who are building OAI based systems so as to share their experiences, problems they are facing, and approaches they are taking to address them. The workshop consisted of invited talks from well-established researchers working in building OAI based digital library system along with short paper presentations.

  8. The prevalence of encoded digital trace evidence in the nonfile space of computer media(,) (.).

    PubMed

    Garfinkel, Simson L

    2014-09-01

    Forensically significant digital trace evidence that is frequently present in sectors of digital media not associated with allocated or deleted files. Modern digital forensic tools generally do not decompress such data unless a specific file with a recognized file type is first identified, potentially resulting in missed evidence. Email addresses are encoded differently for different file formats. As a result, trace evidence can be categorized as Plain in File (PF), Encoded in File (EF), Plain Not in File (PNF), or Encoded Not in File (ENF). The tool bulk_extractor finds all of these formats, but other forensic tools do not. A study of 961 storage devices purchased on the secondary market and shows that 474 contained encoded email addresses that were not in files (ENF). Different encoding formats are the result of different application programs that processed different kinds of digital trace evidence. Specific encoding formats explored include BASE64, GZIP, PDF, HIBER, and ZIP. PMID:25053280

  9. 3D Modeling Techniques for Print and Digital Media

    NASA Astrophysics Data System (ADS)

    Stephens, Megan Ashley

    In developing my thesis, I looked to gain skills using ZBrush to create 3D models, 3D scanning, and 3D printing. The models created compared the hearts of several vertebrates and were intended for students attending Comparative Vertebrate Anatomy. I used several resources to create a model of the human heart and was able to work from life while creating heart models from other vertebrates. I successfully learned ZBrush and 3D scanning, and successfully printed 3D heart models. ZBrush allowed me to create several intricate models for use in both animation and print media. The 3D scanning technique did not fit my needs for the project, but may be of use for later projects. I was able to 3D print using two different techniques as well.

  10. High Density Digital Data Storage System

    NASA Technical Reports Server (NTRS)

    Wright, Kenneth D., II; Gray, David L.; Rowland, Wayne D.

    1991-01-01

    The High Density Digital Data Storage System was designed to provide a cost effective means for storing real-time data from the field-deployable digital acoustic measurement system. However, the high density data storage system is a standalone system that could provide a storage solution for many other real time data acquisition applications. The storage system has inputs for up to 20 channels of 16-bit digital data. The high density tape recorders presently being used in the storage system are capable of storing over 5 gigabytes of data at overall transfer rates of 500 kilobytes per second. However, through the use of data compression techniques the system storage capacity and transfer rate can be doubled. Two tape recorders have been incorporated into the storage system to produce a backup tape of data in real-time. An analog output is provided for each data channel as a means of monitoring the data as it is being recorded.

  11. File System Support for Digital Evidence Bags

    NASA Astrophysics Data System (ADS)

    Richard, Golden; Roussev, Vassil

    Digital Evidence Bags (DEBs) are a mechanism for bundling digital evidence, associated metadata and audit logs into a single structure. DEB-compliant applications can update a DEB's audit log as evidence is introduced into the bag and as data in the bag is processed. This paper investigates native file system support for DEBs, which has a number of benefits over ad hoc modification of digital evidence bags. The paper also describes an API for DEB-enabled applications and methods for providing DEB access to legacy applications through a DEB-aware file system. The paper addresses an urgent need for digital-forensics-aware operating system components that can enhance the consistency, security and performance of investigations.

  12. For Those of Us at the Borders: Recognition and Evaluation of Faculty Work in the Academic Field of Film and Digital Media

    ERIC Educational Resources Information Center

    Collins, E. Anthony

    2011-01-01

    Artistic, scholarly, and professional works by individual faculty members in the field of film and digital media are not being adequately recognized or rewarded as scholarship activity during performance evaluation in institutions of higher learning. Conventional systems for the recognition and evaluation of work prioritize scientism and compel…

  13. Isotope Specific Remediation Media and Systems - 13614

    SciTech Connect

    Denton, Mark S.; Mertz, Joshua L.; Morita, Keisuke

    2013-07-01

    On March 11, 2011, now two years ago, the magnitude 9.0 Great East Japan earthquake, Tohoku, hit off the Fukushima coast of Japan. While, of course, most of the outcome of this unprecedented natural and manmade disaster was a negative, both in Japan and worldwide, there have been some extremely invaluable lessons learned and new emergency recovery technologies and systems developed. As always, the mother of invention is necessity. Among these developments has been the development and full-scale implementation of proven isotope specific media (ISMs) with the intent of surgically removing specific hazardous isotopes for the purpose of minimizing dose to workers and the environment. The first such ISMs to be deployed at the Fukushima site were those removing cesium (Cs-137) and iodine (I-129). Since deployment on June 17, 2011, along with treated cooling water recycle, some 70% of the curies in the building liquid wastes have been removed by the Kurion system alone. The current levels of cesium are now only 2% of the original levels. Such an unprecedented, 'external cooling system' not only allowed the eventual cold shut down of the reactors in mid-December, 2011, but has allowed workers to concentrate on the cleanup of other areas of the site. Water treatment will continue for quite some time due to continued leakage into the buildings and the eventual goal of cleaning up the reactors and fuel pools themselves. With the cesium removal now in routine operation, other isotopes of concern are likely to become priorities. One such isotope is that of strontium, and yttrium (Sr-90 and Y-90), which is still at original levels causing further dose issues as well as impediments to discharge of the treated waste waters. For over a year now, a new synthetic strontium specific media has been under development and testing both in our licensed facility in Oak Ridge, Tennessee, but also in confirmatory tests by the Japan Atomic Energy Agency (JAEA) in Japan for Tokyo Electric Power

  14. Civic Engagement through Digital Citizenship: Engaging Youth in Active, Participatory Citizenship through Digital Media. The Progress of Education Reform. Volume 13, Number 1

    ERIC Educational Resources Information Center

    Baumann, Paul

    2012-01-01

    Participatory digital media--broadly defined as media such as the Internet, social network sites and cell phones that allow users to interact--are ubiquitous among today's youth. Among teens ages 12-17, 95% have access to the Internet; 70% go online daily; 80% use social networking sites such as Facebook and Twitter; and 77% have cell phones. Many…

  15. Early Learning with Digital Media: A Naturalistic, Ethnographic Investigation of Children's Engagement with and Learning from Television and Digital Technology in Early Childhood

    ERIC Educational Resources Information Center

    Dugan, Therese E.

    2012-01-01

    Digital media is a broad concept that includes everything from movies to video games to websites. These media are cultural norms for young people, becoming part of their identity as they use and create content. In this dissertation I discuss the observed diversity of interactions that children from infancy through kindergarten have with digital…

  16. Media Literacy Is Common Sense: Bridging Common Core Standards with the Media Experiences of Digital Learners

    ERIC Educational Resources Information Center

    Redmond, Theresa

    2015-01-01

    The purpose of this article is to investigate the concept of "texts" and how the Common Core State Standards (CCSS) affords teachers opportunities to implement media literacy education, in turn providing developmentally and culturally responsive middle level practice and promoting 21st century skills. This has implications for middle…

  17. Digital Media in Primary Schools: Literacy or Technology? Analyzing Government and Media Discourses

    ERIC Educational Resources Information Center

    Pereira, Sara; Pereira, Luís

    2015-01-01

    This article examines the political and the media discourses concerning the Portuguese governmental program responsible for delivering a laptop named "Magalhães" to all primary school children. The analysis is based on the official documents related to the launch and development of the initiative as well as the press coverage of this…

  18. Development Of A Digital Mammography System

    NASA Astrophysics Data System (ADS)

    Yaffe, M. J.; Nishikawa, R. M.; Maidment, A. D. A.; Fenster, A.

    1988-06-01

    A digital breast imaging system is under development to provide improved detectability of breast cancer. In previous work, the limitations of screen-film mammography were studied using both theoretical and experimental techniques. Important limitations were found in both the acquisition and the display components of imaging. These have been addressed in the design of a scanned-projection digital mammography system. A high resolution x-ray image intensifier (XRII), optically coupled to a self-scanned linear photodiode array, is used to record the image. Pre- and post-patient collimation virtually eliminates scattered radiation and veiling glare of the XRII with only a 20% increase in dose due to penumbra. Geometric magnification of 1.6 times is employed to achieve limiting spatial resolution of 7 1p/mm. For low-contrast objects as small as 0.1 mm in diameter, the digital system is capable of producing images with higher contrast and signal-to-noise ratio than optimally-exposed conventional film-screen mammography systems. Greater latitude is obtainable on the digital system because of its wide dynamic range and linearity. The slit system is limited due to long image acquisition times, and poor quantum efficiency. This motivated our current work on a slot beam digital mammography system which is based on a fiber-optic x-ray detector. Preliminary results of this system will be presented.

  19. Building a National Strategy for Digital Preservation: Issues in Digital Media Archiving.

    ERIC Educational Resources Information Center

    Council on Library and Information Resources, Washington, DC.

    The United States Congress in December 2000 appropriated funds to the Library of Congress (LC) to spearhead an effort to develop a national strategy for the preservation of digital information. LC staff scheduled a series of conversations with representatives from the technology, business, entertainment, academic, legal, archival, and library…

  20. Digital simulation of stiff linear dynamic systems.

    NASA Technical Reports Server (NTRS)

    Holland, L. D.; Walsh, J. R., Jr.; Kerr, J. H.

    1972-01-01

    A method is derived for digital computer simulation of linear time-invariant systems when the insignificant eigenvalues involved in such systems are eliminated by an ALSAP root removal technique. The method is applied to a thirteenth-order dynamic system representing a passive RLC network.

  1. DDL:Digital systems design language

    NASA Technical Reports Server (NTRS)

    Shival, S. G.

    1980-01-01

    Hardware description languages are valuable tools in such applications as hardware design, system documentation, and logic design training. DDL is convenient medium for inputting design details into hardware-design automation system. It is suitable for describing digital systems at gate, register transfer, and major combinational block level.

  2. Quadruplex digital flight control system assessment

    NASA Technical Reports Server (NTRS)

    Mulcare, D. B.; Downing, L. E.; Smith, M. K.

    1988-01-01

    Described are the development and validation of a double fail-operational digital flight control system architecture for critical pitch axis functions. Architectural tradeoffs are assessed, system simulator modifications are described, and demonstration testing results are critiqued. Assessment tools and their application are also illustrated. Ultimately, the vital role of system simulation, tailored to digital mechanization attributes, is shown to be essential to validating the airworthiness of full-time critical functions such as augmented fly-by-wire systems for relaxed static stability airplanes.

  3. Digital Video System for Space Applications

    NASA Astrophysics Data System (ADS)

    Titomanlio, D.; Capuano, G.; Severi, M.; Quadarella, R.

    Techno System developments has been working for several years in the field of digital video targeted to space applications. Systems have flown on board sounding rockets and Russian Foton capsule; new equipment will be employed in the next future on other space platforms. This paper traces the evolution of such systems showing how they can satisfy a wide range of user requirements being at the same time compatible with the usually reduced on-board resources. The work performed over several years and the experience gained resulted in a mature and standard architecture, which an entire family of Digital Video Systems is based on.

  4. A new digital land mobile satellite system

    NASA Technical Reports Server (NTRS)

    Schneider, Philip

    1990-01-01

    A description is given of the different digital services planned to be carried over existing and planned mobile satellite systems. These systems are then compared with analog services in terms of bandwidth and power efficiency. This comparison provides the rationale for the establishment of a digital land mobile satellite service (DLMSS) to use frequencies that are currently available but not yet assigned to a domestic mobile satellite system in the United States. The focus here is on the expected advantages of digital transmission techniques in accommodating additional mobile satellite systems in this portion of the spectrum, and how such techniques can fully satisfy voice, data and facsimile mobile communications requirements in a cost effective manner. A description is given of the system architecture of the DMLSS service proposed by the Geostar Messaging Corporation (GMC) and the market potential of DLMSS.

  5. FAST DIGITAL ORBIT FEEDBACK SYSTEMS AT NSLS.

    SciTech Connect

    PODOBEDOV,B.; KUSHNER,B.; RAMAMOORTHY,S.; TANG,Y.; ZITVOGEL,E.

    2001-06-18

    We are implementing digital orbit feedback systems to replace the analog ones in both the VUV and the X-ray rings. We developed an original VME-based design which is run by a powerful Motorola 2305 CPU and consists entirely of off-the-shelf VME boards. This makes the system inexpensive and easy to configure, and allows for high digitizing rates. The new 5 kHz digital global feedback system is currently operational in the VUV ring, and the X-ray system is in the commissioning phase. Some of the parameters achieved include vertical correction bandwidth of 200 Hz (at DC gain of 100) and typical orbit drift over a fill of <3% of the rms beam size. In this paper we discuss the system architecture, implementation and performance.

  6. How to Choose a Media Retrieval System.

    ERIC Educational Resources Information Center

    Huber, Joe

    1995-01-01

    Provides guidelines for schools choosing a media retrieval system. Topics include broadband, baseband, coaxial cable, or fiber optic decisions; the control network; selecting scheduling software; presentation software; device control; control from the classroom; and a comparison of systems offered by five companies. (LRW)

  7. Interventions using new digital media to improve adolescent sexual health: a systematic review.

    PubMed

    Guse, Kylene; Levine, Deb; Martins, Summer; Lira, Andrea; Gaarde, Jenna; Westmorland, Whitney; Gilliam, Melissa

    2012-12-01

    New digital media (e.g., the Internet, text messaging, and social networking sites [SNS]) have dramatically altered the communication landscape, especially for youth. These communication platforms present new tools for engaging youth in sexual health promotion and risk reduction. We searched eight public databases across multiple disciplines for all peer-reviewed studies published between January 2000 and May 2011 that empirically evaluated the impact of digital media-based interventions on the sexual health knowledge, attitudes, and/or behaviors of adolescents aged 13-24 years. Of 942 abstracts, 10 met inclusion criteria. Seven studies were conducted in the United States. Eight described Web-based interventions, one used mobile phones, and one was conducted on an SNS. Two studies significantly delayed initiation of sex, and one was successful in encouraging users of an SNS to remove sex references from their public profile. Seven interventions significantly influenced psychosocial outcomes such as condom self-efficacy and abstinence attitudes, but at times the results were in directions unexpected by the study authors. Six studies increased knowledge of HIV, sexually transmitted infections, or pregnancy. This area of research is emerging and rapidly changing. More data from controlled studies with longer (>1 year) follow-up and measurement of behavioral outcomes will provide a more robust evidence base from which to judge the effectiveness of new digital media in changing adolescent sexual behavior. PMID:23174462

  8. Scalable computer architecture for digital vascular systems

    NASA Astrophysics Data System (ADS)

    Goddard, Iain; Chao, Hui; Skalabrin, Mark

    1998-06-01

    Digital vascular computer systems are used for radiology and fluoroscopy (R/F), angiography, and cardiac applications. In the United States alone, about 26 million procedures of these types are performed annually: about 81% R/F, 11% cardiac, and 8% angiography. Digital vascular systems have a very wide range of performance requirements, especially in terms of data rates. In addition, new features are added over time as they are shown to be clinically efficacious. Application-specific processing modes such as roadmapping, peak opacification, and bolus chasing are particular to some vascular systems. New algorithms continue to be developed and proven, such as Cox and deJager's precise registration methods for masks and live images in digital subtraction angiography. A computer architecture must have high scalability and reconfigurability to meet the needs of this modality. Ideally, the architecture could also serve as the basis for a nonvascular R/F system.

  9. The Role of a Digital Librarian in the Management of Digital Information Systems (DIS).

    ERIC Educational Resources Information Center

    Sreenivasulu, V.

    2000-01-01

    Discusses the need for digital librarians who will manage and organize digital libraries. Topics include digital information systems; the information superhighway; navigation, browsing, and filtering; multimedia searching and indexing; data mining; information access and retrieval; competencies and skills for a digital librarian; and professional…

  10. High-Density Digital Data Storage System

    NASA Technical Reports Server (NTRS)

    Wright, Kenneth D.; Gray, David L.

    1995-01-01

    High-density digital data storage system designed for cost-effective storage of large amounts of information acquired during experiments. System accepts up to 20 channels of 16-bit digital data with overall transfer rates of 500 kilobytes per second. Data recorded on 8-millimeter magnetic tape in cartridges, each capable of holding up to five gigabytes of data. Each cartridge mounted on one of two tape drives. Operator chooses to use either or both of drives. One drive used for primary storage of data while other can be used to make a duplicate record of data. Alternatively, other drive serves as backup data-storage drive when primary one fails.

  11. Digital PIV (DPIV) Software Analysis System

    NASA Technical Reports Server (NTRS)

    Blackshire, James L.

    1997-01-01

    A software package was developed to provide a Digital PIV (DPIV) capability for NASA LaRC. The system provides an automated image capture, test correlation, and autocorrelation analysis capability for the Kodak Megaplus 1.4 digital camera system for PIV measurements. The package includes three separate programs that, when used together with the PIV data validation algorithm, constitutes a complete DPIV analysis capability. The programs are run on an IBM PC/AT host computer running either Microsoft Windows 3.1 or Windows 95 using a 'quickwin' format that allows simple user interface and output capabilities to the windows environment.

  12. A Longitudinal Study on the Uses of Mobile Tablet Devices and Changes in Digital Media Literacy of Young Adults

    ERIC Educational Resources Information Center

    Park, Sora; Burford, Sally

    2013-01-01

    This study examined whether gaining access to a new digital device enhanced the digital media literacy of young adults and what factors determine such change. Thirty-five young adults were given a mobile tablet device and observed for one year. Participants engaged in an online community, responding regularly to online surveys and discussion…

  13. "Happy and Excited": Perceptions of Using Digital Technology and Social Media by Young People Who Use Augmentative and Alternative Communication

    ERIC Educational Resources Information Center

    Hynan, Amanda; Murray, Janice; Goldbart, Juliet

    2014-01-01

    Young people are using digital technology and online social media within their everyday lives to enrich their social relationships. The UK government believes that using digital technology can improve social inclusion. One well-recognized outcome measure for establishing social inclusion is to examine opportunities for self-determination.…

  14. Walk This Way: Detailed Steps for Transferring Born-Digital Content from Media You Can Read In-House

    ERIC Educational Resources Information Center

    Barrera-Gomez, Julianna; Erway, Ricky

    2013-01-01

    This document is a companion to the report, "You've Got to Walk before You Can Run: First Steps for Managing Born-Digital Content Received on Physical Media." Like the "First Steps" report, the intended audience is those who are just starting to manage born-digital materials, from those wondering where to begin, to those who…

  15. Immunizing digital systems against electromagnetic interference

    NASA Astrophysics Data System (ADS)

    Ewing, P. D.; Korsah, K.; Antonescu, C.

    This paper discusses the development of the technical basis for acceptance criteria applicable to the immunization of digital systems against electromagnetic interference (EMI). The work is sponsored by the US Nuclear Regulatory Commission and stems from the safety-related issues that need to be addressed as a result of the application of digital instrumentation and control systems in nuclear power plants. Designers of digital circuits are incorporating increasingly higher clock frequencies and lower logic level voltages, thereby leading to potentially greater susceptibility of spurious interference being misinterpreted as legitimate logic. Development of the technical basis for acceptance criteria to apply to these digital systems centers around establishing good engineering practices to ensure that sufficient levels of electromagnetic compatibility (EMC) are maintained between the nuclear power plant's electronic and electromechanical systems. First, good EMC design and installation practices are needed to control the emissions from interference sources and thereby their impact on other nearby circuits and systems. Secondly, a test and evaluation program is needed to outline the EMI tests to be performed, the associated test methods to be followed, and adequate test limits to ensure that the circuit or system under test meets the recommended guidelines. Test and evaluation should be followed by periodic maintenance to assess whether the recommended EMI control practices continue to be adhered to as part of the routine operation of the nuclear power plant. By following these steps, the probability of encountering safety-related instrumentation problems associated with EMI will be greatly reduced.

  16. Enabling Disabled Persons to Gain Access to Digital Media

    NASA Technical Reports Server (NTRS)

    Beach, Glenn; OGrady, Ryan

    2011-01-01

    A report describes the first phase in an effort to enhance the NaviGaze software to enable profoundly disabled persons to operate computers. (Running on a Windows-based computer equipped with a video camera aimed at the user s head, the original NaviGaze software processes the user's head movements and eye blinks into cursor movements and mouse clicks to enable hands-free control of the computer.) To accommodate large variations in movement capabilities among disabled individuals, one of the enhancements was the addition of a graphical user interface for selection of parameters that affect the way the software interacts with the computer and tracks the user s movements. Tracking algorithms were improved to reduce sensitivity to rotations and reduce the likelihood of tracking the wrong features. Visual feedback to the user was improved to provide an indication of the state of the computer system. It was found that users can quickly learn to use the enhanced software, performing single clicks, double clicks, and drags within minutes of first use. Available programs that could increase the usability of NaviGaze were identified. One of these enables entry of text by using NaviGaze as a mouse to select keys on a virtual keyboard.

  17. Digital control system for space structure dampers

    NASA Technical Reports Server (NTRS)

    Haviland, J. K.

    1985-01-01

    A digital controller was developed using an SKD-51 System Design Kit, which incorporates an 8031 microcontroller. The necessary interfaces were installed in the wire wrap area of the SKD-51 and a pulse width modulator was developed to drive the coil of the actuator. Also, control equations were developed, using floating-point arithmetic. The design of the digital control system is emphasized, and it is shown that, provided certain rules are followed, an adequate design can be achieved. It is recommended that the so-called w-plane design method be used, and that the time elapsed before output of the up-dated coil-force signal be kept as small as possible. However, the cycle time for the controller should be watched carefully, because very small values for this time can lead to digital noise.

  18. A LANDSAT digital image rectification system

    NASA Technical Reports Server (NTRS)

    Vanwie, P.; Stein, M.

    1976-01-01

    DIRS is a digital image rectification system for the geometric correction of LANDSAT multispectral scanner digital image data. DIRS removes spatial distortions from the data and brings it into conformance with the Universal Transverse Mercator (UTM) map projection. Scene data in the form of landmarks are used to drive the geometric correction algorithms. Two dimensional least squares polynominal and spacecraft attitude modeling techniques for geometric mapping are provided. Entire scenes or selected quadrilaterals may be rectified. Resampling through nearest neighbor or cubic convolution at user designated intervals is available. The output products are in the form of digital tape in band interleaved, single band or CCT format in a rotated UTM projection. The system was designed and implemented on large scale IBM 360 computers.

  19. National Guidelines for Digital Camera Systems Certification

    NASA Astrophysics Data System (ADS)

    Yaron, Yaron; Keinan, Eran; Benhamu, Moshe; Regev, Ronen; Zalmanzon, Garry

    2016-06-01

    Digital camera systems are a key component in the production of reliable, geometrically accurate, high-resolution geospatial products. These systems have replaced film imaging in photogrammetric data capturing. Today, we see a proliferation of imaging sensors collecting photographs in different ground resolutions, spectral bands, swath sizes, radiometric characteristics, accuracies and carried on different mobile platforms. In addition, these imaging sensors are combined with navigational tools (such as GPS and IMU), active sensors such as laser scanning and powerful processing tools to obtain high quality geospatial products. The quality (accuracy, completeness, consistency, etc.) of these geospatial products is based on the use of calibrated, high-quality digital camera systems. The new survey regulations of the state of Israel specify the quality requirements for each geospatial product including: maps at different scales and for different purposes, elevation models, orthophotographs, three-dimensional models at different levels of details (LOD) and more. In addition, the regulations require that digital camera systems used for mapping purposes should be certified using a rigorous mapping systems certification and validation process which is specified in the Director General Instructions. The Director General Instructions for digital camera systems certification specify a two-step process as follows: 1. Theoretical analysis of system components that includes: study of the accuracy of each component and an integrative error propagation evaluation, examination of the radiometric and spectral response curves for the imaging sensors, the calibration requirements, and the working procedures. 2. Empirical study of the digital mapping system that examines a typical project (product scale, flight height, number and configuration of ground control points and process). The study examine all the aspects of the final product including; its accuracy, the product pixels size

  20. C-130 Automated Digital Data System (CADDS)

    NASA Technical Reports Server (NTRS)

    Scofield, C. P.; Nguyen, Chien

    1991-01-01

    Real time airborne data acquisition, archiving and distribution on the NASA/Ames Research Center (ARC) C-130 has been improved over the past three years due to the implementation of the C-130 Automated Digital Data System (CADDS). CADDS is a real time, multitasking, multiprocessing ROM-based system. CADDS acquires data from both avionics and environmental sensors inflight for all C-130 data lines. The system also displays the data on video monitors throughout the aircraft.

  1. Aid For Simulating Digital Flight Control Systems

    NASA Technical Reports Server (NTRS)

    Hartman, Richard M.

    1991-01-01

    DIVERS translator is computer program to convert descriptions of digital flight-control systems (DFCS) into computer program. Language developed to represent design charts of DFCS. Translator converts DIVERS source code into easily transportable language, while minimizing probability that results are affected by interpretation of programmer. Final translated program used as standard of comparison to verify operation of actual flight-control systems. Applicable to simulation of other control systems; for example, electrical circuits and logic processes. Written in C.

  2. Evaluating Multi-Input/Multi-Output Digital Control Systems

    NASA Technical Reports Server (NTRS)

    Pototzky, Anthony S.; Wieseman, Carol D.; Hoadley, Sherwood T.; Mukhopadhyay, Vivek

    1994-01-01

    Controller-performance-evaluation (CPE) methodology for multi-input/multi-output (MIMO) digital control systems developed. Procedures identify potentially destabilizing controllers and confirm satisfactory performance of stabilizing ones. Methodology generic and used in many types of multi-loop digital-controller applications, including digital flight-control systems, digitally controlled spacecraft structures, and actively controlled wind-tunnel models. Also applicable to other complex, highly dynamic digital controllers, such as those in high-performance robot systems.

  3. Adaptive Embedded Digital System for Plasma Diagnostics

    NASA Astrophysics Data System (ADS)

    González, Angel; Rodríguez, Othoniel; Mangual, Osvaldo; Ponce, Eduardo; Vélez, Xavier

    2014-05-01

    An Adaptive Embedded Digital System to perform plasma diagnostics using electrostatic probes was developed at the Plasma Engineering Laboratory at Polytechnic University of Puerto Rico. The system will replace the existing instrumentation at the Laboratory, using reconfigurable hardware to minimize the equipment and software needed to perform diagnostics. The adaptability of the design resides on the possibility of replacing the computational algorithm on the fly, allowing to use the same hardware for different probes. The system was prototyped using Very High Speed Integrated Circuits Hardware Description Language (VHDL) into an Field Programmable Gate Array (FPGA) board. The design of the Embedded Digital System includes a Zero Phase Digital Filter, a Derivative Unit, and a Computational Unit designed using the VHDL-2008 Support Library. The prototype is able to compute the Plasma Electron Temperature and Density from a Single Langmuir probe. The system was tested using real data previously acquired from a single Langmuir probe. The plasma parameters obtained from the embedded system were compared with results computed using matlab yielding excellent matching. The new embedded system operates on 4096 samples versus 500 on the previous system, and completes its computations in 26 milliseconds compared with about 15 seconds on the previous system.

  4. Use of Portable Digital Media Players Increases Voice Therapy Patient Motivation and Practice Frequency

    PubMed Central

    van Leer, Eva; Connor, Nadine P.

    2012-01-01

    Summary Objectives/Hypotheses There are many documented barriers to successful adherence to voice therapy. However, methods for facilitating adherence are not well understood. The purpose of this study was to determine if patient adherence could be improved by providing patients with practice support between sessions using mobile treatment videos. Methods Thirteen voice therapy participants were provided with portable media players containing videos of voice exercises exemplified by their therapists and themselves. A randomized crossover design of two conditions was used: (1) standard of care voice therapy where participants were provided with written homework descriptions; and (2) video-enhanced voice therapy where participants received a portable digital media player with clinician and self-videos. The duration of each condition was 1 week. Results Practice of voice exercises was significantly greater in the video-enhanced voice therapy condition than in the standard of care “written” condition (P < 0.05). Three aspects of participant motivation for practice-overall commitment to practice, importance of practice, and confidence in the ability to practice were also significantly greater after video-enhanced condition than after standard of care condition. Conclusion These results support the use of video examples and portable digital media players in voice therapy for individuals who are comfortable using such technology. PMID:21840169

  5. The convergence of gambling and digital media: implications for gambling in young people.

    PubMed

    King, Daniel; Delfabbro, Paul; Griffiths, Mark

    2010-06-01

    Adolescents' use of the Internet and other digital media for the purpose of gambling represents a serious concern in modern society. This paper overviews some of the available monetary and non-monetary forms of gambling within new digital and online media and monetary forms of games with gambling-like experiences. With reference to current psychological knowledge on the risk factors that promote adolescent gambling, it is suggested that new gambling technologies may: (a) make gambling more accessible and attractive to young people, (b) may promote factually incorrect information about gambling, (c) provide an easy escape from real world problems such as depression and social isolation, (d) create a gambling environment that easily facilitates peer pressures to gamble, (e) ease parental transmission of gambling attitudes and beliefs, and (f) make gambling more ubiquitous and socially acceptable. The unique risks of Internet gambling for young people are critically discussed, as well as the lack of restricted classification for video games and other media that feature interactive, non-monetary forms of gambling. PMID:19756979

  6. Digital radiographic systems detect boiler tube cracks

    SciTech Connect

    Walker, S.

    2008-06-15

    Boiler water wall leaks have been a major cause of steam plant forced outages. But conventional nondestructive evaluation techniques have a poor track record of detecting corrosion fatigue cracking on the inside surface of the cold side of waterwall tubing. EPRI is performing field trials of a prototype direct-digital radiographic system that promises to be a game changer. 8 figs.

  7. Common modeling system for digital simulation

    NASA Technical Reports Server (NTRS)

    Painter, Rick

    1994-01-01

    The Joint Modeling and Simulation System is a tri-service investigation into a common modeling framework for the development digital models. The basis for the success of this framework is an X-window-based, open systems architecture, object-based/oriented methodology, standard interface approach to digital model construction, configuration, execution, and post processing. For years Department of Defense (DOD) agencies have produced various weapon systems/technologies and typically digital representations of the systems/technologies. These digital representations (models) have also been developed for other reasons such as studies and analysis, Cost Effectiveness Analysis (COEA) tradeoffs, etc. Unfortunately, there have been no Modeling and Simulation (M&S) standards, guidelines, or efforts towards commonality in DOD M&S. The typical scenario is an organization hires a contractor to build hardware and in doing so an digital model may be constructed. Until recently, this model was not even obtained by the organization. Even if it was procured, it was on a unique platform, in a unique language, with unique interfaces, and, with the result being UNIQUE maintenance required. Additionally, the constructors of the model expended more effort in writing the 'infrastructure' of the model/simulation (e.g. user interface, database/database management system, data journalizing/archiving, graphical presentations, environment characteristics, other components in the simulation, etc.) than in producing the model of the desired system. Other side effects include: duplication of efforts; varying assumptions; lack of credibility/validation; and decentralization in policy and execution. J-MASS provides the infrastructure, standards, toolset, and architecture to permit M&S developers and analysts to concentrate on the their area of interest.

  8. Expert system for LAN media selection

    SciTech Connect

    Johnson, M.L.; Bratten, W.A.; Williams, J.M.; Emrich, M.L.

    1988-10-01

    A continued rise in interconnectivity requirements and a shortage of experienced system integrators characterize a growing need for access to data networking information. Telecommunications personnel must make complex decisions regarding transfer media and topology. Informed decision making can be aided by an expert system capturing network planning knowledge. The LAN system has a modular architecture. It contains information regarding the design of Local Area Networks, as well as cost and time considerations. In addition, by including information regarding local constraints (e.g., equipment and distance), the system can be tailored to a new organization. 10 refs., 2 figs.

  9. Review of hard copy systems for digital medical imaging

    NASA Astrophysics Data System (ADS)

    Apple, Bernard A.; Tennant, Mark H.; Thomas, Jule W., Jr.

    1996-03-01

    In this paper we review image requirements and the potential use of various printing technologies to record digital diagnostic radiographic information. An analysis of limitations and advantages of alternate imaging systems compared to current laser imager/silver halide film systems will be presented. The future move to digital radiology along with its hard copy requirements will also be discussed. The winning technologies in the market place will be determined by their ability to provide adequate image quality at low cost while meeting productivity, durability, and convenience requirements. The first technology to meet these requirements will have a tremendous advantage in the market place. Medical imaging hard copy is dominated by the use of silver halide media providing monochrome images of diagnostic image quality. As new digital medical imaging modalities have emerged they have opened the door to new hard copy technologies. These new technologies have been born and nurtured outside the medical market by small markets with high image quality requirements or by large markets with lower image quality requirements. The former have tended to provide high cost, high quality solutions and the latter low cost, low quality solutions. Silver halide media still dominates, at least in part, because it provides high image quality at a relatively low cost. Yet, the trend away from wet silver halide is evident. These new hard copy technologies are being tested to determine their applicability to the medical market and are finding niches where they provide value. A clear winner that provides the required image quality at low cost has yet to emerge.

  10. The Digital Library for Earth System Education: A Community Integrator

    NASA Astrophysics Data System (ADS)

    Marlino, M. R.; Pandya, R. E.

    2003-12-01

    The rapid changes in the geoscience research environment have prompted educators to request support for their efforts to reform geoscience educational practices. DLESE, the Digital Library for Earth System Education, responds to this request by providing a single point of access to high-quality educational resources for teaching about the Earth as a system. DLESE is supported by the National Science Foundation and is an operational library used by tens of thousands of educators every month. DLESE resources include a variety of media formats, from text-based lesson plans to highly-sophisticated tools for interactive three-dimensional visualization of authentic scientific data. The DLESE community is particularly interested in partnering with scientific researchers to ensure that the tools of practicing scientists become widely available to geoscience educators. Two emerging large-scale scientific efforts, the GEON project and EarthScope, provide compelling illustrations of the potential of these partnerships. Both are cutting-edge, cross-disciplinary projects that use digital tools in a distributed environment to support scientific investigation. Both have also made a deep commitment to use these same tools to support geoscience education, and both are including DLESE as part of that commitment. Our interactive presentation will allow users to discover a variety of educational resources and communication services within the library. We will highlight those library resources and services that take particular advantage of the digital media to support new modes of learning and teaching. For example, annotation tools allow educators to add tips on the most effective way to use a specific resource. Data services will help educators find and use real-time data to illustrate geoscience phenomena. Multi-dimensional visualization tools allow students to interact with authentic student data in inquiry-based learning environment. DLESE will continue to actively collaborate

  11. Image digitizer system for bubble chamber laser

    SciTech Connect

    Haggerty, H

    1986-12-08

    An IBM PC-based image digitizer system has been assembled to monitor the laser flash used for holography at the 15 foot bubble chamber. The hardware and the operating software are outlined. For an operational test of the system, an array of LEDs was flashed with a 10 microsecond pulse and the image was grabbed by one of the operating programs and processed. (LEW)

  12. Solid-object digitizing system

    NASA Astrophysics Data System (ADS)

    Sunthankar, S.

    1990-08-01

    This paper describes a method concerned with the design and construction of a systeL to measure and record discrete surface locations from actual physical objects. It also investigates different image processing techniques, compaction of graphical data algorithms and 3-D object reconstruction and manipulation, from a laser scanner for the reconstruction of the human soft tissue of the face out of the skull. It is a robotic laser ranging system that automatically generates three dimensional surface co-ordinates starting from homemorphic surfaced objects. The principle of the digitising process is based on triangulation between a laser point, illuminated on the surface of the object and two custom-built light sensors. Given the geometry of the system, one of the light sensors detects the small spot on the object and then calculates a representative point in Euclidean three space. A two degree-offreedom electro-mechanical system translates the laser and rotates the object in order to discretise the entire object. Representations of complex real objects have been generated in a relatively short time with very good resolution. For example, a human skull can be digitised, representing over 5000 surface points, in a little over one hour. The data representations can then be viewed and manipulated in real time on high performance graphics devices or viewed and then animated as a realistic image on raster graphics. The principal aim of this project is to develop Artificial Intelligence and Knowledge based system techniques to infer the depth of the soft tissue and its associated relationship with the skull.

  13. Optimal digital control of multirate systems

    NASA Technical Reports Server (NTRS)

    Amit, N.; Powell, J. D.

    1981-01-01

    Many digitally controlled aerospace systems have widely separated time constants and thus can benefit from the use of two or more sample rates. In this paper, the analysis and synthesis of multirate systems is accomplished by creating an equivalent single rate system and applying existing techniques. The optimal steady state solution of the single rate system is obtained by eigenvector decomposition and then used to compute the periodic solution to the Riccati equation of the original multirate system. An example shows when multirate analysis is necessary and the penalty of various levels of approximations to the exact multirate solution.

  14. Characterizing Digital Camera Systems: A Prelude to Data Standards

    NASA Technical Reports Server (NTRS)

    Ryan, Robert

    2002-01-01

    This viewgraph presentation profiles: 1) Digital imaging systems; 2) Specifying a digital imagery product; and 3) Characterization of data acquisition systems. Advanced large array digital imaging systems are routinely being used. Digital imagery guidelines are being developed by ASPRS and ISPRS. Guidelines and standards are of little use without standardized characterization methods. Characterization of digital camera systems is important for supporting digital imagery guidelines. Specifications are characterized in the lab and/or the field. Laboratory characterization is critical for optimizing and defining performance. In-flight characterization is necessary for an end-to-end system test.

  15. Children's media culture in the new millennium: mapping the digital landscape.

    PubMed

    Montgomery, K C

    2000-01-01

    A new "children's digital media culture" is swiftly moving into place on the Internet. In this article, the author describes the technological, demographic, and market forces shaping this new digital media culture and the rich array of Web sites being created for children and teens. Many nonprofit organizations, museums, educational institutions, and government agencies are playing a significant role in developing online content for children, offering them opportunities to explore the world, form communities with other children, and create their own works of art and literature. For the most part, however, the heavily promoted commercial sites, sponsored mainly by media conglomerates and toy companies, are overshadowing the educational sites. Because of the unique interactive features of the Internet, companies are able to integrate advertising and Web site content to promote "brand awareness" and "brand loyalty" among children, encouraging them to become consumers beginning at a very early age. The possibility that a child's exploration on the Internet might lead to inappropriate content, aggressive advertising, or even dangerous contact with strangers has given rise to a number of efforts to create "safe zones" for children--that is, places in cyberspace where children can be protected from both marketers and predators. Federal legislation now requires parental permission before commercial Web sites can collect personal information from children under age 13. Several companies offer filtering, blocking, and monitoring software to safeguard children from harmful content or predators. Generally lacking in debates concerning children's use of the Internet, however, is a more proactive definition of quality--one that would help ensure the creation and maintenance of Web sites that enhance children's learning and development and not merely keep them from harm. In the concluding section of this article, the author recommends actions to promote development of a quality

  16. Cyber secure systems approach for NPP digital control systems

    SciTech Connect

    McCreary, T. J.; Hsu, A.

    2006-07-01

    Whether fossil or nuclear power, the chief operations goal is to generate electricity. The heart of most plant operations is the I and C system. With the march towards open architecture, the I and C system is more vulnerable than ever to system security attacks (denial of service, virus attacks and others), thus jeopardizing plant operations. Plant staff must spend large amounts of time and money setting up and monitoring a variety of security strategies to counter the threats and actual attacks to the system. This time and money is a drain on the financial performance of a plant and distracts valuable operations resources from their real goals: product. The pendulum towards complete open architecture may have swung too far. Not all aspects of proprietary hardware and software are necessarily 'bad'. As the aging U.S. fleet of nuclear power plants starts to engage in replacing legacy control systems, and given the on-going (and legitimate) concern about the security of present digital control systems, decisions about how best to approach cyber security are vital to the specification and selection of control system vendors for these upgrades. The authors maintain that utilizing certain resources available in today's digital technology, plant control systems can be configured from the onset to be inherently safe, so that plant staff can concentrate on the operational issues of the plant. The authors postulate the concept of the plant I and C being bounded in a 'Cyber Security Zone' and present a design approach that can alleviate the concern and cost at the plant level of dealing with system security strategies. Present approaches through various IT cyber strategies, commercial software, and even postulated standards from various industry/trade organizations are almost entirely reactive and simply add to cost and complexity. This Cyber Security Zone design demonstrates protection from the four classes of cyber security attacks: 1)Threat from an intruder attempting to

  17. Challenges in media delivery systems and servers

    NASA Astrophysics Data System (ADS)

    Swaminathan, Viswanathan

    2005-03-01

    Although multimedia compression formats and protocols to stream such content have been around for a long time, there has been limited success in the adoption of open standards for streaming over IP (Internet Protocol) networks. The elements of such an end-to-end system will be introduced outlining the responsibilities of each element. The technical and financial challenges in building a viable multimedia streaming end-to-end system will be analyzed in detail in this paper outlining some solutions and areas for further research. Also, recent migration to IP in the backend video delivery network infrastructures have made it possible to use IP based media streaming solutions in non-IP last mile access networks like cable and wireless networks in addition to the DSL networks. The advantages of using IP streaming solutions in such networks will be outlined. However, there is a different set of challenges posed by such applications. The real time constraints are acute in each element of the media delivery end-to-end system. Meeting these real time constraints in general purpose non real time server systems is quite demanding. Quality of service, resource management, session management, fail-over, reliability, and cost are some important but challenging requirements in such systems. These will also be analyzed with suggested solutions. Content protection and rights management requirements are also very challenging for open standards based multimedia delivery systems. Interoperability unfortunately interferes with security in most of the current day systems. Some approaches to solve the interoperability problems will also be presented. The requirements, challenges, and possible solutions for delivering broadcast, on demand, and interactive video delivery applications for IP based media streaming systems will be analyzed in detail.

  18. Digital reader vs print media: the role of digital technology in reading accuracy in age-related macular degeneration

    PubMed Central

    Gill, K; Mao, A; Powell, A M; Sheidow, T

    2013-01-01

    Purpose To compare patient satisfaction, reading accuracy, and reading speed between digital e-readers (Sony eReader, Apple iPad) and standard paper/print media for patients with stable wet age-related macular degeneration (AMD). Methods Patients recruited for the study were patients with stable wet AMD, in one or both eyes, who would benefit from a low-vision aid. The selected text sizes by patients reflected the spectrum of low vision in regard to their macular disease. Stability of macular degeneration was assessed on a clinical examination with stable visual acuity. Patients recruited for the study were assessed for reading speeds on both digital readers and standard paper text. Standardized and validated texts for reading speeds were used. Font sizes in the study reflected a spectrum from newsprint to large print books. Patients started with the smallest print size they could read on the standardized paper text. They then used digital readers to read the same size standardized text. Reading speed was calculated as words per minute by the formula (correctly read words/reading time (s)·60). The visual analog scale was completed by patients after reading each passage. These included their assessment on ‘ease of use' and ‘clarity of print' for each device and the print paper. Results A total of 27 patients were used in the study. Patients consistently read faster (P<0.0003) on the Apple iPad with larger text sizes (size 24 or greater) when compared with paper, and also on the paper compared with the Sony eReader (P<0.03) in all text group sizes. Patients chose the iPad to have the best clarity and the print paper as the easiest to use. Conclusions This study has demonstrated that digital devices may have a use in visual rehabilitation for low-vision patients. Devices that have larger display screens and offer high contrast ratios will benefit AMD patients who require larger texts to read. PMID:23492860

  19. Intermittent/transient fault phenomena in digital systems

    NASA Technical Reports Server (NTRS)

    Masson, G. M.

    1977-01-01

    An overview of the intermittent/transient (IT) fault study is presented. An interval survivability evaluation of digital systems for IT faults is discussed along with a method for detecting and diagnosing IT faults in digital systems.

  20. Process simulation in digital camera system

    NASA Astrophysics Data System (ADS)

    Toadere, Florin

    2012-06-01

    The goal of this paper is to simulate the functionality of a digital camera system. The simulations cover the conversion from light to numerical signal and the color processing and rendering. We consider the image acquisition system to be linear shift invariant and axial. The light propagation is orthogonal to the system. We use a spectral image processing algorithm in order to simulate the radiometric properties of a digital camera. In the algorithm we take into consideration the transmittances of the: light source, lenses, filters and the quantum efficiency of a CMOS (complementary metal oxide semiconductor) sensor. The optical part is characterized by a multiple convolution between the different points spread functions of the optical components. We use a Cooke triplet, the aperture, the light fall off and the optical part of the CMOS sensor. The electrical part consists of the: Bayer sampling, interpolation, signal to noise ratio, dynamic range, analog to digital conversion and JPG compression. We reconstruct the noisy blurred image by blending different light exposed images in order to reduce the photon shot noise, also we filter the fixed pattern noise and we sharpen the image. Then we have the color processing blocks: white balancing, color correction, gamma correction, and conversion from XYZ color space to RGB color space. For the reproduction of color we use an OLED (organic light emitting diode) monitor. The analysis can be useful to assist students and engineers in image quality evaluation and imaging system design. Many other configurations of blocks can be used in our analysis.

  1. Digital holography system for topography measurement

    NASA Astrophysics Data System (ADS)

    Amezquita, R.; Rincon, O. J.; Torres, Y. M.; Amezquita, S.

    2011-08-01

    The optical characteristics of Diffractive Optical Elements are determined by the properties of the photosensitive film on which they are produced. When working with photoresist plates, the most important property is the change in the plate's topography for different exposures. In this case, the required characterization involves a topographic measurement that can be made using digital holography. This work presents a digital holography system in which a hologram's phase map is obtained from a single recorded image. The phase map is calculated by applying a phase-shifting algorithm to a set of images that are created using a digital phase-shifting/tilteliminating procedure. Also, the curvatures, introduced by the imaging elements used in the experimental setup, are digitally compensated for using a polynomial fitting-method. The object's topography is then obtained from this modified phase map. To demonstrate the proposed procedure, the topography of patches exposed on a Shipley 1818 photoresist plate by microlithography equipment-which is currently under construction-is shown.

  2. Modems for emerging digital cellular-mobile radio system

    NASA Technical Reports Server (NTRS)

    Feher, Kamilo

    1991-01-01

    Digital modem techniques for emerging digital cellular telecommunications-mobile radio system applications are described and analyzed. In particular, theoretical performance, experimental results, principles of operation, and various architectures of pi/4-QPSK (pi/4-shifted coherent or differential QPSK) modems for second-generation US digital cellular radio system applications are presented. The spectral/power efficiency and performance of the pi/4-QPSK modems (American and Japanese digital cellular emerging standards) are studied and briefly compared to GMSK (Gaussian minimum-shift keying) modems (proposed for European DECT and GSM cellular standards). Improved filtering strategies and digital pilot-aided (digital channel sounding) techniques are also considered for pi/4-QPSK and other digital modems. These techniques could significantly improve the performance of digital cellular and other digital land mobile and satellite mobile radio systems. More spectrally efficient modem trends for future cellular/mobile (land mobile) and satellite communication systems applications are also highlighted.

  3. A Landsat Digital Image Rectification System

    NASA Technical Reports Server (NTRS)

    Van Wie, P.; Stein, M.

    1976-01-01

    DIRS is a Digital Image Rectification System for the geometric correction of Landsat Multispectral Scanner digital image data. DIRS removes spatial distortions from the data and brings it into conformance with the Universal Transverse Mercator (UTM) map projection. Scene data in the form of landmarks or Ground Control Points (GCPs) are used to drive the geometric correction algorithms. The system offers extensive capabilities for 'shade printing' to aid in the determination of GCPs. Affine, two dimensional least squares polynominal and spacecraft attitude modeling techniques for geometric mapping are provided. Entire scenes or selected quadralaterals may be rectified. Resampling through nearest neighbor or cubic convolution at user designated intervals is available. The output products are in the form of digital tape in band interleaved, single band or CCT format in a rotated UTM projection. The system was designed and implemented on large scale IBM 360 computers with at least 300-500K bytes of memory for user application programs and five nine track tapes plus direct access storage.

  4. Lessons learned in digital upgrade projects digital control system implementation at US nuclear power stations

    SciTech Connect

    Kelley, S.; Bolian, T. W.

    2006-07-01

    AREVA NP has gained significant experience during the past five years in digital upgrades at operating nuclear power stations in the US. Plants are seeking modernization with digital technology to address obsolescence, spare parts availability, vendor support, increasing age-related failures and diminished reliability. New systems offer improved reliability and functionality, and decreased maintenance requirements. Significant lessons learned have been identified relating to the areas of licensing, equipment qualification, software quality assurance and other topics specific to digital controls. Digital control systems have been installed in non safety-related control applications at many utilities within the last 15 years. There have also been a few replacements of small safety-related systems with digital technology. Digital control systems are proving to be reliable, accurate, and easy to maintain. Digital technology is gaining acceptance and momentum with both utilities and regulatory agencies based upon the successes of these installations. Also, new plants are being designed with integrated digital control systems. To support plant life extension and address obsolescence of critical components, utilities are beginning to install digital technology for primary safety-system replacement. AREVA NP analyzed operating experience and lessons learned from its own digital upgrade projects as well as industry-wide experience to identify key issues that should be considered when implementing digital controls in nuclear power stations.

  5. Digital control algorithms for microgravity isolation systems

    NASA Technical Reports Server (NTRS)

    Sinha, A.; Wang, Y.-P.

    1993-01-01

    New digital control algorithms have been developed to achieve the desired transmissibility function for a microgravity isolation system. Two approaches have been presented for the controller design in the context of a single degree of freedom system for which an attractive electromagnet is used as the actuator. The relative displacement and the absolute acceleration of the mass have been used as feedback signals. The results from numerical studies are presented. It has been found that the resulting transmissibility is quite close to the desired function. Also, the maximum coil currents required by new algorithms are smaller than the maximum current demanded by the previously proposed lead/lag method.

  6. Digital control system for space structural dampers

    NASA Technical Reports Server (NTRS)

    Haviland, J. K.

    1984-01-01

    A recently developed concept for a damper was improved by adding a small taper to the proof-mass, and using a proximeter to determine position. Also, an experimental damper was built using a three-inch stroke in place of the standard one-inch stroke. The analog controller initially used was replaced by an independent digital controller slaved to a TRS-80 Model I computer, which also serves as a highly effective, low-cost development system. An overall system concept for the use of proof-mass dampers is presented.

  7. Advanced optical manufacturing digital integrated system

    NASA Astrophysics Data System (ADS)

    Tao, Yizheng; Li, Xinglan; Li, Wei; Tang, Dingyong

    2012-10-01

    It is necessarily to adapt development of advanced optical manufacturing technology with modern science technology development. To solved these problems which low of ration, ratio of finished product, repetition, consistent in big size and high precision in advanced optical component manufacturing. Applied business driven and method of Rational Unified Process, this paper has researched advanced optical manufacturing process flow, requirement of Advanced Optical Manufacturing integrated System, and put forward architecture and key technology of it. Designed Optical component core and Manufacturing process driven of Advanced Optical Manufacturing Digital Integrated System. the result displayed effective well, realized dynamic planning Manufacturing process, information integration improved ratio of production manufactory.

  8. Interferometer combines laser light source and digital counting system

    NASA Technical Reports Server (NTRS)

    1965-01-01

    Measurement of small linear displacements in digital readouts with extreme accuracy and sensitivity is achieved by an interferometer. The instrument combines a digital electro-optical fringe-counting system and a laser light source.

  9. Use Of A Digital Optical Storage System

    NASA Astrophysics Data System (ADS)

    Collins, M. W.

    1983-01-01

    The Common File System (CFS) is a file management and file storage system for the Los Alamos National Laboratory's computer network. The CFS is organized as a hierarchical storage system: active files are stored on fast-access storage devices, larger, less active files are stored on slower, less expensive devices, and archival files are stored offline. Files are automatically moved between the various classes of storage by a file migration program that analyzes file activity, file size, and storage device capabilities. This has resulted in a cost-effective system that provides both fast access and large data storage capability (over 9 trillion bits currently stored). A large capacity (1014 bits), reliable Digital Optical Storage System would replace the offline storage as the archival part of the CFS and might also be used for active storage if it had a reasonable file access time.

  10. Compact handheld digital holographic microscopy system development

    NASA Astrophysics Data System (ADS)

    Singh, Vijay Raj; Sui, Liansheng; Asundi, Anand

    2009-12-01

    Development of a commercial prototype of reflection handheld digital holographic microscope system is presented in this paper. The concept is based on lensless magnification using diverging wave geometry and the miniaturized optical design which provides a compact packaged system. The optical geometry design provides the same curvature of object and reference waves and thus phase aberration is automatically compensated. The basic methodology of the system is developed and it further explored for 3D imaging, static deflection and vibration measurements applications. Based on the developed methodology an user-friendly software is developed suitable for industrial shop floor environment. The applications of the system are presented for 3D imaging, static deflection measurement and vibration analysis of MEMS samples. The developed system is well suitable for the testing of MEMS and Microsystems samples, with full-field and real-time features, for static and dynamic inspection and characterization and to monitor micro-fabrication process.