WorldWideScience

Sample records for twenty-first ieee conference

  1. IEEE Conference Publications in Libraries.

    Science.gov (United States)

    Johnson, Karl E.

    1984-01-01

    Conclusions of surveys (63 libraries, OCLC database, University of Rhode Island users) assessing handling of Institute of Electrical and Electronics Engineers (IEEE) conference publications indicate that most libraries fully catalog these publications using LC cataloging, and library patrons frequently require series access to publications. Eight…

  2. IEEE conference record -- Abstracts

    International Nuclear Information System (INIS)

    Anon.

    1994-01-01

    This conference covers the following areas: computational plasma physics; vacuum electronic; basic phenomena in fully ionized plasmas; plasma, electron, and ion sources; environmental/energy issues in plasma science; space plasmas; plasma processing; ball lightning/spherical plasma configurations; plasma processing; fast wave devices; magnetic fusion; basic phenomena in partially ionized plasma; dense plasma focus; plasma diagnostics; basic phenomena in weakly ionized gases; fast opening switches; MHD; fast z-pinches and x-ray lasers; intense ion and electron beams; laser-produced plasmas; microwave plasma interactions; EM and ETH launchers; solid state plasmas and switches; intense beam microwaves; and plasmas for lighting. Separate abstracts were prepared for 416 papers in this conference

  3. 2012 IEEE Vehicular Networking Conference (VNC)

    NARCIS (Netherlands)

    Altintas, Onur; Chen, Wai; Heijenk, Geert; Oh, Hyun Seo; Chung, Jong-Moon; Dressler, Falko; Kargl, Frank; Pau, Giovanni; Schoch, Elmar

    2012-01-01

    On behalf of the Organizing Committee, we would like to welcome you to the fourth edition of the IEEE Vehicular Networking Conference in Seoul, Korea. IEEE VNC is a unique conference sponsored by both IEEE Communications Society and Intelligent Transportation Systems Society. It brings together

  4. Proceedings of the twenty-first DOE solar photochemistry research conference

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-06-01

    The Solar Photochemistry Research Conference brings together grantees and contractors of the Division of Chemical Sciences who are engaged in fundamental research on solar photochemical energy conversion. The annual conference provides a focus for the program by allowing for the exchange of new information and ideas, identification of needs and opportunities, and fostering of collaborations among investigators of disparate chemistry backgrounds. The synergy that has been achieved is a major strength of the program. The research provides the foundations for future solar technologies, in which light-induced charge separation processes will be applied to conversion of light energy to chemical energy, e.g., production of alcohols from carbon dioxide, hydrogen from water, ammonia from atmospheric nitrogen, or other needed chemicals at lower cost of by using sunlight as the energy source. The program includes topical sessions on semiconductor nanoparticles, nanocrystalline films, and photoinduced charge separation at the semiconductor/liquid interface; photochemistry and photophysics of transition metal complexes; photoinduced charge separation in zeolites and lamellar assemblies; intramolecular charge separation and electron transfer; dynamics of solvation and solution interfaces; and photoconversion via porphyrins and biomimetic constructs. The special guest plenary lecturer is Professor Moungi Bawendi of the Massachusetts Institute of Technology, who spoke on semiconductor nanocrystallites (quantum dots). As an added feature, Tom Surek, the Photovoltaics Technology program manager at NREL, presented a status report on one of the most promising and heavily supported programs in solar energy conversion technology, solid state photovoltaics. This volume contains the agenda for the meeting, abstracts of the 31 formal presentations and 55 posters, as well as an address list for the 111 participants.

  5. 7th IEEE International Conference Intelligent Systems

    CERN Document Server

    Atanassov, KT; Doukovska, L; Hadjiski, M; Jotsov, V; Kacprzyk, J; Kasabov, N; Sotirov, S; Szmidt, E; Zadrożny, S; Filev, D; Jabłkowski, J; Kacprzyk, J; Krawczak, M; Popchev, I; Rutkowski, L; Sgurev, V; Sotirova, E; Szynkarczyk, P

    2015-01-01

    This two volume set of books constitutes the proceedings of the 2014  7th IEEE International Conference Intelligent Systems (IS), or IEEE IS’2014 for short, held on September 24‐26, 2014 in Warsaw, Poland. Moreover, it contains some selected papers from the collocated IWIFSGN'2014-Thirteenth International Workshop on Intuitionistic Fuzzy Sets and Generalized Nets.The conference was organized by the Systems Research Institute, Polish Academy of Sciences, Department IV of Engineering Sciences, Polish Academy of Sciences, and Industrial Institute of Automation and Measurements - PIAP.The papers included in the two proceedings volumes have been subject to a thorough review process by three highly qualified peer reviewers.Comments and suggestions from them have considerable helped improve the quality of the papers but also the division of the volumes into parts, and assignment of the papers to the best suited parts.  

  6. IEEE Conference Record - Abstracts. 1997 IEEE International Conference on Plasma Science, 19 - 22 May 1997 San Diego, California

    National Research Council Canada - National Science Library

    Hyman, Julius

    1997-01-01

    This 360 page softbound publication includes the following major sections. An invitation to ICOPS'97, Catamaran Resort Hotel Floor Pinas, Officers of the IEEE Nuclear and Plasma Sciences Society, Conference Information...

  7. ARC Researchers at IEEE 2015 Vehicle Power and Propulsion Conference

    Science.gov (United States)

    Contacts Researchers News & Events Event Calendar Annual Program Review Research Seminars Press Room Event Archives ARC Researchers at the IEEE 2015 Vehicle Power and Propulsion Conference (October 19-22 Ballroom B P-SS4-2 Comparison of SOFC and PEM Fuel Cell Hybrid Power Management Strategies for Mobile

  8. 17th IEEE NPSS Real Time Conference – RT-2010

    CERN Multimedia

    Carlos Varandas

    2010-01-01

    Congress Centre of “Instituto Superior Técnico”, Lisboa, Portugal, 24-28 May, 2010 ABSTRACT SUBMISSION OPEN Abstract Submission Deadline: March 1st, 2010 Dear Sir/Madam, We are pleased to announce that abstract submission for the 17th IEEE NPSS Real Time Conference is now open on our web site. The deadline for submitting an abstract is 1st March 2010. Full conference details General Chairman

  9. Addressing the main challenges of energy security in the twenty-first century – Contributions of the conferences on Sustainable Development of Energy, Water and Environment Systems

    International Nuclear Information System (INIS)

    Markovska, Natasa; Duić, Neven; Mathiesen, Brian Vad; Guzović, Zvonimir; Piacentino, Antonio; Schlör, Holger; Lund, Henrik

    2016-01-01

    Climate change and fossil fuel reserve depletion both pose challenges for energy security and for wellbeing in general. The top ten among them include: Decarbonising the world economy; Enhancing the energy efficiency and energy savings in buildings; Advancing the energy technologies; Moving towards energy systems based on variable renewables; Electrifying the transport and some industrial processes; Liberalizing and extending the energy markets; Integrating energy sectors to Smart Energy Systems; Making the cities and communities smart; Diversifying the energy sources; and Building more biorefineries. Presenting the contributions of selected conference papers published in the special issues of leading scientific journals (including all the papers from the current Energy special issue), this review demonstrates the capacity of the Conferences on Sustainable Development of Energy, Water and Environment Systems for generation of knowledge which could serve as the centrepiece of a pertinent response to those challenges. - Highlights: • Top ten challenges of energy security in the twenty-first century identified. • Selected SDEWES contributions analysed against the identified challenges. • The role of SDEWES as knowledge generator towards addressing the identified challenges credibly demonstrated.

  10. Proceedings IEEE Visualization Conference and IEEE Information Visualization Conference (VIS'07 and INFOVIS'07, Sacramento CA, USA, October 28-November 1, 2007)

    NARCIS (Netherlands)

    Chen, M.; Hansen, C.; North, C.; Pang, A.; Wijk, van J.J.

    2007-01-01

    These are the proceedings of the IEEE Visualization Conference 2007 (Vis 2007) and the IEEE Information Visualization Conference 2007 (InfoVis 2007) held during October 28 to November 1, 2007 in Sacramento, California. The power of using computing technology to create useful, effective imagery for

  11. 15th IEEE International Conference on Intelligent Engineering Systems

    CERN Document Server

    Živčák, Jozef; Aspects of Computational Intelligence Theory and Applications

    2013-01-01

    This volume covers the state-of-the art of the research and development in various aspects of computational intelligence and gives some perspective directions of development. Except the traditional engineering areas that contain theoretical knowledge, applications, designs and projects, the book includes the area of use of computational intelligence in biomedical engineering. „Aspects of Computational Intelligence: Theory and Applications” is a compilation of carefully selected extended papers written on the basis of original contributions presented at the 15th IEEE International Conference on Intelligent Engineering Systems 2011, INES 2011 held at June 23.-26. 2011 in AquaCity Poprad, Slovakia.    

  12. IEEE conference record -- Abstracts: 1996 IEEE international conference on plasma science

    International Nuclear Information System (INIS)

    Anon.

    1996-01-01

    This meeting covered the following topics: space plasmas; non-equilibrium plasma processing; computer simulation of vacuum power tubes; vacuum microelectronics; microwave systems; basic phenomena in partially ionized gases -- gaseous electronics, electrical discharges; ball lightning/spherical plasma configuration; plasma diagnostics; plasmas for lighting; dense plasma focus; intense ion and electron beams; plasma, ion, and electron sources; flat panel displays; fast z-pinches and x-ray lasers; environmental/energy issues in plasma science; thermal plasma processing; computational plasma physics; magnetic confinement fusion; microwave-plasma interactions; space plasma engineering; EM and ETH launchers; fast wave devices; intense beam microwaves; slow wave devices; space plasma measurements; basic phenomena in fully ionized plasma -- waves, instabilities, plasma theory, etc; plasma closing switches; fast opening switches; and laser-produced plasma. Separate abstracts were prepared for most papers in this conference

  13. Conference Proceedings for 1997 IEEE 24th International Conference on Plasma Sciences, 19 - 22 May 1997, San Diego, California

    National Research Council Canada - National Science Library

    Hyman, Julius

    1997-01-01

    This 360 page softbound publication includes the following major sections, An invitation to ICOPS'97, Catamaran Resort Hotel Floor Pinas, Officers of the IEEE Nuclear and Plasma Sciences Society, Conference Information...

  14. CSP-IEEE Instrumentation and Measurement Technology Conference 2016 (IEEE 12MTC 2016)

    Science.gov (United States)

    2016-08-22

    theme, the "pulse" means the signal (message) from industries, nature and humans after excited by the economic activities of humans; "measuring" is to...Items Amount Remakes Conference Venue Expense 2,098,850.00 1. Conference Room 1,374,850.00 All purchases were obeyed 2. Projector and Audio

  15. 2011 IEEE Vehicular Networking Conference (VNC): Demo Summaries

    NARCIS (Netherlands)

    Altintas, O.; Chen, W.; Heijenk, Geert; Dressler, F.; Ekici, E.; Kargl, Frank; Shigeno, H.; Dietzel, Stefan

    2011-01-01

    Foreword For the first time in its history, IEEE VNC has included this year’s demonstrations in its program. Demonstrations play an important role to expose the research community to practical aspects of research and to foster cross-fertilization among researchers both in academia and in industry.

  16. Homeland Security Affairs Journal, Supplement - 2012: IEEE 2011 Conference on Technology for Homeland Security: Best Papers

    OpenAIRE

    2012-01-01

    Homeland Security Affairs is the peer-reviewed online journal of the Naval Postgraduate School Center for Homeland Defense and Security (CHDS), providing a forum to propose and debate strategies, policies, and organizational arrangements to strengthen U.S. homeland security. The instructors, participants, alumni, and partners of CHDS represent the leading subject matter experts and practitioners in the field of homeland security. IEEE Supplement 2012. Supplement: IEEE 2011 Conference on Te...

  17. Twenty-first century vaccines

    Science.gov (United States)

    Rappuoli, Rino

    2011-01-01

    In the twentieth century, vaccination has been possibly the greatest revolution in health. Together with hygiene and antibiotics, vaccination led to the elimination of many childhood infectious diseases and contributed to the increase in disability-free life expectancy that in Western societies rose from 50 to 78–85 years (Crimmins, E. M. & Finch, C. E. 2006 Proc. Natl Acad. Sci. USA 103, 498–503; Kirkwood, T. B. 2008 Nat. Med 10, 1177–1185). In the twenty-first century, vaccination will be expected to eliminate the remaining childhood infectious diseases, such as meningococcal meningitis, respiratory syncytial virus, group A streptococcus, and will address the health challenges of this century such as those associated with ageing, antibiotic resistance, emerging infectious diseases and poverty. However, for this to happen, we need to increase the public trust in vaccination so that vaccines can be perceived as the best insurance against most diseases across all ages. PMID:21893537

  18. 20th IEEE-NPSS Real Time Conference

    CERN Document Server

    2016-01-01

    We invite you at the Centro Congressi “A. Luciani” in Padova for the 2016 Real Time Conference (RT2016). It will take place Monday 6 through Friday 10 June 2016, with optional pre-conference tutorials Sunday, June 5. Like the previous editions, RT2016 will be a multidisciplinary conference devoted to the latest developments on realtime techniques in the fields of Plasma and Nuclear Fusion, particle physics, nuclear physics and astrophysics, space science, accelerators, medical physics, nuclear power instrumentation and other radiation instrumentation.

  19. IEEE Nuclear Science Symposium and Medical Imaging Conference

    CERN Document Server

    2016-01-01

    The NSS/MIC is a well-established meeting that has continuously provided an exceptional venue to showcase outstanding developments and contributions across the nuclear and medical instrumentation fields. This conference brings together engineers and scientists from around the world to share their knowledge and to gain insight and inspiration from others. The conference will include a distinguished series of short courses, relevant refresher courses, and workshops that will address areas of particular interest.

  20. Proceedings of the 1988 IEEE international conference on robotics and automation. Volume 1

    International Nuclear Information System (INIS)

    Anon.

    1988-01-01

    These proceedings compile the papers presented at the international conference (1988) sponsored by IEEE Council on ''Robotics and Automation''. The subjects discussed were: automation and robots of nuclear power stations; algorithms of multiprocessors; parallel processing and computer architecture; and U.S. DOE research programs on nuclear power plants

  1. International Conference on Grey Systems and intelligent Services (IEEE GSIS 2009)

    CERN Document Server

    Liu, Sifeng; Advances in Grey Systems Research

    2010-01-01

    This book contains contributions by some of the leading researchers in the area of grey systems theory and applications. All the papers included in this volume are selected from the contributions physically presented at the 2009 IEEE International Conference on Grey Systems and Intelligent Services, November 11 – 12, 2009, Nanjing, Jiangsu, People’s Republic of China. This event was jointly sponsored by IEEE Systems, Man, and Cybernetics Society, Natural Science Foundation of China, and Grey Systems Society of China. Additionally, Nanjing University of Aeronautics and Astronautics also invested heavily in this event with its direct and indirect financial and administrative supports.

  2. The 26th IEEE international conference on plasma science

    International Nuclear Information System (INIS)

    1999-01-01

    Some of the sessions covered by this conference are: Basic Processes in Fully and Partially Ionized Plasmas; Slow Wave Devices; Laser-Produced Plasma; Non-Equilibrium Plasma Processing; Space Plasmas and Partially Ionized Gases; Microwave Plasmas; Inertial Confinement Fusion; Plasma Diagnostics; Computational Plasma Physics; Microwave Systems; Laser Produced Plasmas and Dense Plasma Focus; Intense Electron and Ion Beams; Fast Wave Devices; Spherical Configurations and Ball Lightning; Thermal Plasma Chemistry and Processing and Environmental Issues in Plasma Science; Plasma, Ion, and Electron Sources; Fast Wave Devices and Intense Beams; Fast Z-pinches and X-ray Lasers; Plasma Opening Switches; Plasma for Lighting; Intense Beams; Vacuum Microwaves; Magnetic Fusion Energy; and Plasma Thrusters and Arcs. Separate abstracts were prepared for some of the papers in this volume

  3. 4th IEEE/ACIS International Conference on Computer and Information Science

    CERN Document Server

    2016-01-01

    This edited book presents scientific results of the 14th IEEE/ACIS International Conference on Computer and Information Science (ICIS 2015) which was held on June 28 – July 1, 2015 in Las Vegas, USA. The aim of this conference was to bring together researchers and scientists, businessmen and entrepreneurs, teachers, engineers, computer users, and students to discuss the numerous fields of computer science and to share their experiences and exchange new ideas and information in a meaningful way. Research results about all aspects (theory, applications and tools) of computer and information science, and to discuss the practical challenges encountered along the way and the solutions adopted to solve them.

  4. NIH-IEEE 2015 Strategic Conference on Healthcare Innovations and Point-of-Care Technologies for Prec

    Science.gov (United States)

    NIH and the Institute for Electrical and Electronics Engineering, Engineering in Medicine and Biology Society (IEEE/EMBS) hosted the third iteration of the Healthcare Innovations and Point-of-Care Technologies Conference last week.

  5. AVSS 2007: IEEE International Conference onAdvanced Video and Signal based Surveillance, London, UK, September 2007

    DEFF Research Database (Denmark)

    Fihl, Preben

    This technical report will cover the participation in the IEEE International Conference on Advanced Video and Signal based Surveillance in September 2007. The report will give a concise description of the most relevant topics presented at the conference, focusing on the work related to the HERMES...... project and human motion and action recognition. Our contribution to the conference will also be described....

  6. 12th ACIS/IEEE International Conference on Computer Science and Information Science

    CERN Document Server

    2013-01-01

    This edited book presents scientific results of the 12th IEEE/ACIS International Conference on Computer and Information Science (ICIS 2013) which was held on June 16-20, 2013 in Toki Messe, Niigata, Japan. The aim of this conference was to bring together scientists, engineers, computer users, and students to share their experiences and exchange new ideas, research results about all aspects (theory, applications and tools) of computer and information science, and to discuss the practical challenges encountered along the way and the solutions adopted to solve them The conference organizers selected the best 20 papers from those papers accepted for presentation at the conference. The papers were chosen based on review scores submitted by members of the program committee, and underwent further rigorous rounds of review.    

  7. 3th IEEE/ACIS International Conference on Computer and Information Science

    CERN Document Server

    2015-01-01

    This edited book presents scientific results of the 13th IEEE/ACIS International Conference on Computer and Information Science (ICIS 2014) which was held on June 4-6, 2014 in Taiyuan, China. The aim of this conference was to bring together researchers and scientists, businessmen and entrepreneurs, teachers, engineers, computer users, and students to discuss the numerous fields of computer science and to share their experiences and exchange new ideas and information in a meaningful way. Research results about all aspects (theory, applications and tools) of computer and information science, and to discuss the practical challenges encountered along the way and the solutions adopted to solve them. The conference organizers selected the best papers from those papers accepted for presentation at the conference.  The papers were chosen based on review scores submitted by members of the program committee, and underwent further rigorous rounds of review. This publication captures 14 of the conference’s most promis...

  8. Capital in the Twenty-First Century

    DEFF Research Database (Denmark)

    Hansen, Per H.

    2014-01-01

    Review essay on: Capital in the Twenty-First Century. By Thomas Piketty . Translated by Arthur Goldhammer . Cambridge, Mass.: The Belknap Press of Harvard University Press, 2014. viii + 685 pp......Review essay on: Capital in the Twenty-First Century. By Thomas Piketty . Translated by Arthur Goldhammer . Cambridge, Mass.: The Belknap Press of Harvard University Press, 2014. viii + 685 pp...

  9. Conference record of the 1986 IEEE international conference on plasma science

    International Nuclear Information System (INIS)

    Anon.

    1986-01-01

    This book presents the papers given at a conference on plasma science. Topics considered at the conference included inverse diode computations, collisional ion heating, gyrotron phase locking using a modulated electron beam, klystrons and lasertrons, radiation pressure on moving plasma, RF heating by cylindrical plasma waveguide modes, and deionization phase characteristics of hydrogen thyratron plasmas

  10. 14th ACIS/IEEE International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing

    CERN Document Server

    Studies in Computational Intelligence : Volume 492

    2013-01-01

    This edited book presents scientific results of the 14th ACIS/IEEE International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing (SNPD 2013), held in Honolulu, Hawaii, USA on July 1-3, 2013. The aim of this conference was to bring together scientists, engineers, computer users, and students to share their experiences and exchange new ideas, research results about all aspects (theory, applications and tools) of computer and information science, and to discuss the practical challenges encountered along the way and the solutions adopted to solve them. The conference organizers selected the 17 outstanding papers from those papers accepted for presentation at the conference.  

  11. 15th IEEE/ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing

    CERN Document Server

    2015-01-01

    This edited book presents scientific results of 15th IEEE/ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing (SNPD 2014) held on June 30 – July 2, 2014 in Las Vegas Nevada, USA. The aim of this conference was to bring together scientists, engineers, computer users, and students to share their experiences and exchange new ideas, research results about all aspects (theory, applications and tools) of computer and information science, and to discuss the practical challenges encountered along the way and the solutions adopted to solve them. The conference organizers selected the 13 outstanding papers from those papers accepted for presentation at the conference.

  12. The twenty-first century in space

    CERN Document Server

    Evans, Ben

    2015-01-01

    This final entry in the History of Human Space Exploration mini-series by Ben Evans continues with an in-depth look at the latter part of the 20th century and the start of the new millennium. Picking up where Partnership in Space left off, the story commemorating the evolution of manned space exploration unfolds in further detail. More than fifty years after Yuri Gagarin’s pioneering journey into space, Evans extends his overview of how that momentous voyage continued through the decades which followed. The Twenty-first Century in Space, the sixth book in the series, explores how the fledgling partnership between the United States and Russia in the 1990s gradually bore fruit and laid the groundwork for today’s International Space Station. The narrative follows the convergence of the Shuttle and Mir programs, together with standalone missions, including servicing the Hubble Space Telescope, many of whose technical and human lessons enabled the first efforts to build the ISS in orbit. The book also looks to...

  13. IEEE Conference on Software Engineering Education and Training (CSEE&T 2012) Proceedings (25th, Nanjing, Jiangsu, China, April 17-19, 2012)

    Science.gov (United States)

    IEEE Conference on Software Engineering Education and Training, Proceedings (MS), 2012

    2012-01-01

    The Conference on Software Engineering Education and Training (CSEE&T) is the premier international peer-reviewed conference, sponsored by the Institute of Electrical and Electronics Engineers, Inc. (IEEE) Computer Society, which addresses all major areas related to software engineering education, training, and professionalism. This year, as…

  14. IEEE Conference Record of 1980 Fourteenth Pulse Power Modulator Symposium, 3-5 June 1980.

    Science.gov (United States)

    1980-01-01

    Capacitor Discharges, Proc IEEE 113, p. able operation on Nova we are examing alter- 1549 (1966). nate switch gas (Ar:N 2 :SF 6 ) and electrode material...VOLTTA-KILOVOLTS PLATE VO LTAM --LOVLTS Figure 8. Constant Current Curve for the X2097U Figure 11. Constant Current Curve for the X2097V at 2000 Volt

  15. IEEE NUCLEAR SCIENCE SYMPOSIUM AND MEDICAL IMAGING CONFERENCE 15-20 OCTOBER 2000 PALAIS DES CONGRES, LYON, FRANCE

    CERN Multimedia

    2000-01-01

    The IEEE NSS & MIC will be held this year in Europe for the first time in its more than 40 year history. Some 280 oral and 400 poster presentations on radiation detectors, instrumentation and imaging will be given over the five days of the conferences. In addition there is a rich programme of keynote talks, topical workshops, short courses and an industrial exhibition with more than 50 exhibitors. SHORT COURSES Following a long and successful tradition, several tutorial short courses, delivered by known experts in the specific fields, are being offered to registered students. There are still places available to attend the courses on Solid State Detectors, Particle Identification and Detectors for Astrophysics. These intensive one-day tutorials will be given on Sunday October 15. Full details and registration information can be found on the conference web site or from the Short Courses Organiser, Fabio Sauli, CERN. A limited amount of financial support is available for motivated scholars who may not ot...

  16. 6th IEEE/ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing

    CERN Document Server

    2016-01-01

    This edited book presents scientific results of the 16th IEEE/ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing (SNPD 2015) which was held on June 1 – 3, 2015 in Takamatsu, Japan. The aim of this conference was to bring together researchers and scientists, businessmen and entrepreneurs, teachers, engineers, computer users, and students to discuss the numerous fields of computer science and to share their experiences and exchange new ideas and information in a meaningful way. Research results about all aspects (theory, applications and tools) of computer and information science, and to discuss the practical challenges encountered along the way and the solutions adopted to solve them.

  17. 17th IEEE/ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing

    CERN Document Server

    SNPD 2016

    2016-01-01

    This edited book presents scientific results of the 17th IEEE/ACIS International Conference on Software Engineering, Artificial Intelligence, Networking and Parallel/Distributed Computing (SNPD 2016) which was held on May 30 - June 1, 2016 in Shanghai, China. The aim of this conference was to bring together researchers and scientists, businessmen and entrepreneurs, teachers, engineers, computer users, and students to discuss the numerous fields of computer science and to share their experiences and exchange new ideas and information in a meaningful way. Research results about all aspects (theory, applications and tools) of computer and information science, and to discuss the practical challenges encountered along the way and the solutions adopted to solve them.

  18. Proceeding of the ACM/IEEE-CS Joint Conference on Digital Libraries (1st, Roanoke, Virginia, June 24-28, 2001).

    Science.gov (United States)

    Association for Computing Machinery, New York, NY.

    Papers in this Proceedings of the ACM/IEEE-CS Joint Conference on Digital Libraries (Roanoke, Virginia, June 24-28, 2001) discuss: automatic genre analysis; text categorization; automated name authority control; automatic event generation; linked active content; designing e-books for legal research; metadata harvesting; mapping the…

  19. 3rd IEEE/IFToMM International Conference on Reconfigurable Mechanisms and Robots

    CERN Document Server

    Kong, Xianwen; Dai, Jian; ReMAR 2015; Advances in Reconfigurable Mechanisms and Robots II

    2016-01-01

    This book presents the most recent advances in the research and applications of reconfigurable mechanisms and robots. It collects 93 independently reviewed papers presented at the Third ASME/IFToMM International Conference on Reconfigurable Mechanisms and Robots (ReMAR 2015) held in Beijing, China, 20-22 July 2015. The conference papers are organized into seven parts to cover the reconfiguration theory, topology, kinematics and design of reconfigurable mechanisms including reconfigurable parallel mechanisms. The most recent results on reconfigurable robots are presented including their analysis, design, simulation and control. Bio-inspired mechanisms are also explored in the challenging fields of rehabilitation and minimally invasive surgery. This book further addresses deployable mechanisms and origami-inspired mechanisms and showcases a wide range of successful applications of reconfigurable mechanisms and robots. Advances in Reconfigurable Mechanisms and Robots II should be of interest for researchers, eng...

  20. NREL preprints for the photovoltaic specialists conference of IEEE twenty-five

    Energy Technology Data Exchange (ETDEWEB)

    Gwinner, D. [ed.

    1996-05-01

    This volume contains 40 papers prepared for presentation at the conference. Topics include: material properties, fabrication of solar cells, thermophotovoltaics, performance efficiency of photovoltaic cells, gettering procedures, market development, and photovoltaic power supplies for remote areas. Materials for solar cells include: Si, CuInSe{sub 2}, CuInGaSe{sub 2}, GaInP, GaAs, CdTe, and CdS. Papers have been processed separately for inclusion on the data base.

  1. Digital earth applications in the twenty-first century

    NARCIS (Netherlands)

    de By, R.A.; Georgiadou, P.Y.

    2014-01-01

    In these early years of the twenty-first century, we must look at how the truly cross-cutting information technology supports other innovations, and how it will fundamentally change the information positions of government, private sector and the scientific domain as well as the citizen. In those

  2. Afterword: Victorian Sculpture for the Twenty-First Century

    Directory of Open Access Journals (Sweden)

    David J. Getsy

    2016-06-01

    Full Text Available Commenting on the directions proposed by this issue of '19', the afterword discusses the broad trends in twenty-first century studies of Victorian sculpture and the opportunity for debate arising from the first attempt at a comprehensive exhibition.

  3. SEAPOWER: A GUIDE FOR THE TWENTY- FIRST CENTURY

    African Journals Online (AJOL)

    Abel

    $154,37 (amazon.com hardback). With the publication of Seapower: A Guide for the Twenty-First Century. Geoffrey Till has set the standard for publications on all things maritime. The updated and expanded new edition of the book is an essential guide for students of naval history and maritime strategy and provides ...

  4. Proceedings of the twenty-first LAMPF users group meeting

    International Nuclear Information System (INIS)

    1988-04-01

    The Twenty-First Annual LAMPF Users Group Meeting was held November 9-10, 1987, at the Clinton P. Anderson Meson Physics Facility. The program included a number of invited talks on various aspects of nuclear and particle physics as well as status reports on LAMPF and discussions of upgrade options. The LAMPF working groups met and discussed plans for the secondary beam lines, experimental programs, and computing facilities

  5. Why the American public supports twenty-first century learning.

    Science.gov (United States)

    Sacconaghi, Michele

    2006-01-01

    Aware that constituent support is essential to any educational endeavor, the AOL Time Warner Foundation (now the Time Warner Foundation), in conjunction with two respected national research firms, measured Americans' attitudes toward the implementation of twenty-first century skills. The foundation's national research survey was intended to explore public perceptions of the need for changes in the educational system, in school and after school, with respect to the teaching of twenty-first century skills. The author summarizes the findings of the survey, which were released by the foundation in June 2003. One thousand adults were surveyed by telephone, including African Americans, Latinos, teachers, and business executives. In general, the survey found that Americans believe today's students need a "basics-plus" education, meaning communication, technology, and critical thinking skills in addition to the traditional basics of reading, writing, and math. In fact, 92 percent of respondents stated that students today need different skills from those of ten to twenty years ago. Also, after-school programs were found to be an appropriate vehicle to teach these skills. Furthermore, the survey explored how well the public perceives schools to be preparing youth for the workforce and postsecondary education, which twenty-first century skills are seen as being taught effectively, and the level of need for after-school and summer programs. The survey results provide conclusive evidence of national support for basics-plus education. Thus, a clear opportunity exists to build momentum for a new model of education for the twenty-first century.

  6. Technological sciences society of the twenty-first century

    International Nuclear Information System (INIS)

    1999-04-01

    This book introduces information-oriented society of the twenty-first century connected to computer network for example memory of dream : F-ram, information-oriented society : New media, communications network for next generation ; ISDN on what is IDSN?, development of information service industry, from office automation to an intelligent building in the future, home shopping and home banking and rock that hinders information-oriented society.

  7. NATO’s Relevance in the Twenty-First Century

    Science.gov (United States)

    2012-03-22

    reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching...5d. PROJECT NUMBER Colonel John K. Jones 5e. TASK NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES...Christopher Coker, Globalisation and Insecurity in the Twenty-first Century: NATO and the Management of Risk (The International Institute for Strategic

  8. Designing Vaccines for the Twenty-First Century Society

    OpenAIRE

    Finco, Oretta; Rappuoli, Rino

    2014-01-01

    The history of vaccination clearly demonstrates that vaccines have been highly successful in preventing infectious diseases, reducing significantly the incidence of childhood diseases and mortality. However, many infections are still not preventable with the currently available vaccines and they represent a major cause of mortality worldwide. In the twenty-first century, the innovation brought by novel technologies in antigen discovery and formulation together with a deeper knowledge of the h...

  9. Early twenty-first-century droughts during the warmest climate

    Directory of Open Access Journals (Sweden)

    Felix Kogan

    2016-01-01

    Full Text Available The first 13 years of the twenty-first century have begun with a series of widespread, long and intensive droughts around the world. Extreme and severe-to-extreme intensity droughts covered 2%–6% and 7%–16% of the world land, respectively, affecting environment, economies and humans. These droughts reduced agricultural production, leading to food shortages, human health deterioration, poverty, regional disturbances, population migration and death. This feature article is a travelogue of the twenty-first-century global and regional droughts during the warmest years of the past 100 years. These droughts were identified and monitored with the National Oceanic and Atmospheric Administration operational space technology, called vegetation health (VH, which has the longest period of observation and provides good data quality. The VH method was used for assessment of vegetation condition or health, including drought early detection and monitoring. The VH method is based on operational satellites data estimating both land surface greenness (NDVI and thermal conditions. The twenty-first-century droughts in the USA, Russia, Australia and Horn of Africa were intensive, long, covered large areas and caused huge losses in agricultural production, which affected food security and led to food riots in some countries. This research also investigates drought dynamics presenting no definite conclusion about drought intensification or/and expansion during the time of the warmest globe.

  10. Report on the behalf of the Commission for Foreign Affairs on the bill project adopted by the Senate, after initiation of the accelerated procedure, authorizing the approval of the agreement between the Government of the French Republic and the Secretary of the United Nations Framework Convention on Climate Change and its Kyoto protocol about the twenty first session of the Conference Of the Parties to the United Nations Framework Convention on Climate Change, the eleventh session of the Conference Of the Parties acting as a gathering of parties to the Kyoto protocol and organ sessions. National Assembly Nr 2943, 3062, Senate Nr 587, 512

    International Nuclear Information System (INIS)

    Le Borgn', Pierre-Yves; Larcher, Gerard; Grand, Jean-Pierre; Valls, Manuel; Fabius, Laurent

    2015-06-01

    As France is about to host the twenty first Conference of Parties (COP 21), this report presents this conference on climate changes as an historical step. It describes the context by recalling the content of international negotiations on climate since 1992, and by commenting the preparation of the Paris conference. It addresses the various and important organisational aspects: means, non-budgetary means, security aspects. The second part discusses the content of the agreement between the French government and the Secretary of United Nations Framework Convention on Climate Change (UNFCCC): provisions related to the material organisation of the conference, provisions related to privileges and immunities, and other arrangements (related to security, financial, responsibility and conflict resolution). The text of the bill project and the discussion of the commission are reported

  11. Twenty-first-century medical microbiology services in the UK.

    Science.gov (United States)

    Duerden, Brian

    2005-12-01

    With infection once again a high priority for the UK National Health Service (NHS), the medical microbiology and infection-control services require increased technology resources and more multidisciplinary staff. Clinical care and health protection need a coordinated network of microbiology services working to consistent standards, provided locally by NHS Trusts and supported by the regional expertise and national reference laboratories of the new Health Protection Agency. Here, I outline my thoughts on the need for these new resources and the ways in which clinical microbiology services in the UK can best meet the demands of the twenty-first century.

  12. Accelerators for the twenty-first century a review

    CERN Document Server

    Wilson, Edmund J N

    1990-01-01

    The development of the synchrotron, and later the storage ring, was based upon the electrical technology at the turn of this century, aided by the microwave radar techniques of World War II. This method of acceleration seems to have reached its limit. Even superconductivity is not likely to lead to devices that will satisfy physics needs into the twenty-first century. Unless a new principle for accelerating elementary particles is discovered soon, it is difficult to imagine that high-energy physics will continue to reach out to higher energies and luminosities.

  13. Increasing precipitation volatility in twenty-first-century California

    Science.gov (United States)

    Swain, Daniel L.; Langenbrunner, Baird; Neelin, J. David; Hall, Alex

    2018-05-01

    Mediterranean climate regimes are particularly susceptible to rapid shifts between drought and flood—of which, California's rapid transition from record multi-year dryness between 2012 and 2016 to extreme wetness during the 2016-2017 winter provides a dramatic example. Projected future changes in such dry-to-wet events, however, remain inadequately quantified, which we investigate here using the Community Earth System Model Large Ensemble of climate model simulations. Anthropogenic forcing is found to yield large twenty-first-century increases in the frequency of wet extremes, including a more than threefold increase in sub-seasonal events comparable to California's `Great Flood of 1862'. Smaller but statistically robust increases in dry extremes are also apparent. As a consequence, a 25% to 100% increase in extreme dry-to-wet precipitation events is projected, despite only modest changes in mean precipitation. Such hydrological cycle intensification would seriously challenge California's existing water storage, conveyance and flood control infrastructure.

  14. The Turn to Precarity in Twenty-First Century Fiction

    Directory of Open Access Journals (Sweden)

    Morrison Jago

    2014-01-01

    Full Text Available Recent years have seen several attempts by writers and critics to understand the changed sensibility in post-9/11 fiction through a variety of new -isms. This essay explores this cultural shift in a different way, finding a ‘turn to precarity’ in twenty-first century fiction characterised by a renewal of interest in the flow and foreclosure of affect, the resurgence of questions about vulnerability and our relationships to the other, and a heightened awareness of the social dynamics of seeing. The essay draws these tendencies together via the work of Judith Butler in Frames of War, in an analysis of Trezza Azzopardi’s quasi-biographical study of precarious life, Remember Me.

  15. Twenty-First Water Reaction Safety Information Meeting

    International Nuclear Information System (INIS)

    Monteleone, S.

    1994-04-01

    This three-volume report contains 90 papers out of the 102 that were presented at the Twenty-First Water Reactor Safety Information Meeting held at the Bethesda Marriott Hotel, Bethesda, Maryland, during the week of October 25--27, 1993. The papers are printed in the order of their presentation in each session and describe progress and results of programs in nuclear safety research conducted in this country and abroad. Foreign participation in the meeting included papers presented by researchers from France, Germany, Japan, Russia, Switzerland, Taiwan, and United Kingdom. The titles of the papers and the names of the authors have been updated and may differ from those that appeared in the final program of the meeting. Individual papers have been cataloged separately. This document, Volume 2, presents papers on severe accident research

  16. Twenty-First Water Reactor Safety Information Meeting

    International Nuclear Information System (INIS)

    Monteleone, S.

    1994-04-01

    This three-volume report contains 90 papers out of the 102 that were presented at the Twenty-First Water Reactor Safety Information Meeting held at the Bethesda Marriott Hotel, Bethesda, Maryland, during the week of October 25-27, 1993. The papers are printed in the order of their presentation in each session and describe progress and results of programs in nuclear safety research conducted in this country and abroad. Foreign participation in the meeting included papers presented by researchers from France, Germany, Japan, Russia, Switzerland, Taiwan, and United Kingdom. The titles of the papers and the names of the authors have been updated and may differ from those that appeared in the final program of the meeting. Selected papers were indexed separately for inclusion in the Energy Science and Technology Database

  17. The Dialectics of Discrimination in the Twenty-First Century

    Directory of Open Access Journals (Sweden)

    John Stone

    2007-12-01

    Full Text Available This article explores some of the latest developments in the scholarship on race relations and nationalism that seek to address the impact of globalization and the changed geo-political relations of the first decade of the twenty-first century. New patterns of identification, some of which challenge existing group boundaries and others that reinforce them, can be seen to flow from the effects of global market changes and the political counter-movements against them. The impact of the “war on terrorism”, the limits of the utility of hard power, and the need for new mechanisms of inter-racial and inter-ethnic conflict resolution are evaluated to emphasize the complexity of these group relations in the new world disorder.

  18. Strategies for Teaching Maritime Archaeology in the Twenty First Century

    Science.gov (United States)

    Staniforth, Mark

    2008-12-01

    Maritime archaeology is a multi-faceted discipline that requires both theoretical learning and practical skills training. In the past most universities have approached the teaching of maritime archaeology as a full-time on-campus activity designed for ‘traditional’ graduate students; primarily those in their early twenties who have recently come from full-time undergraduate study and who are able to study on-campus. The needs of mature-age and other students who work and live in different places (or countries) and therefore cannot attend lectures on a regular basis (or at all) have largely been ignored. This paper provides a case study in the teaching of maritime archaeology from Australia that, in addition to ‘traditional’ on-campus teaching, includes four main components: (1) learning field methods through field schools; (2) skills training through the AIMA/NAS avocational training program; (3) distance learning topics available through CD-ROM and using the Internet; and (4) practicums, internships and fellowships. The author argues that programs to teach maritime archaeology in the twenty first century need to be flexible and to address the diverse needs of students who do not fit the ‘traditional’ model. This involves collaborative partnerships with other universities as well as government underwater cultural heritage management agencies and museums, primarily through field schools, practicums and internships.

  19. Nuclear energy into the twenty-first century

    International Nuclear Information System (INIS)

    Hammond, G.P.

    1996-01-01

    The historical development of the civil nuclear power generation industry is examined in the light of the need to meet conflicting energy-supply and environmental pressures over recent decades. It is suggested that fission (thermal and fast) reactors will dominate the market up to the period 2010-2030, with fusion being relegated to the latter part of the twenty-first century. A number of issues affecting the use of nuclear electricity generation in Western Europe are considered including its cost, industrial strategy needs, and the public acceptability of nuclear power. The contribution of nuclear power stations to achieving CO2 targets aimed at relieving global warming is discussed in the context of alternative strategies for sustainable development, including renewable energy sources and energy-efficiency measures. Trends in the generation of nuclear electricity from fission reactors are finally considered in terms of the main geopolitical groupings that make up the world in the mid-1990s. Several recent, but somewhat conflicting, forecasts of the role of nuclear power in the fuel mix to about 2020 are reviewed. It is argued that the only major expansion in generating capacity will take place on the Asia-Pacific Rim and not in the developing countries generally. Nevertheless, the global nuclear industry overall will continue to be dominated by a small number of large nuclear electricity generating countries; principally the USA, France and Japan. (UK)

  20. The twenty-first century challenges to sexuality and religion.

    Science.gov (United States)

    Turner, Yolanda; Stayton, William

    2014-04-01

    Clergy and religious leaders are facing a wide variety of sexual needs and concerns within their faith communities. Conflicts over sexual issues are growing across the entire spectrum of religious denominations, and clerics remain ill prepared to deal with them. As religious communities work to remain influential in public policy debates, clergy and the institutions that train them need to be properly prepared for twenty-first century challenges that impact sexuality and religion. Clergy are often the first point of contact for sexual problems and concerns of their faith community members-complex issues centered on morals, spirituality, and ethics. Yet, there still exists a significant lack of sexual curricula in the programs that are educating our future religious leaders. The resulting paucity of knowledge leaves these leaders unprepared to address the needs and concerns of their congregants. However, with accurate, relevant human sexuality curricula integrated into theological formation programs, future leaders will be equipped to competently serve their constituencies. This paper provides a rationale for the need for such training, an overview of the faith- and theology-based history of a pilot training project, and a description of how the Christian faith and the social sciences intersect in a training pilot project's impetus and process.

  1. Twenty-first workshop on geothermal reservoir engineering: Proceedings

    Energy Technology Data Exchange (ETDEWEB)

    None

    1996-01-26

    PREFACE The Twenty-First Workshop on Geothermal Reservoir Engineering was held at the Holiday Inn, Palo Alto on January 22-24, 1996. There were one-hundred fifty-five registered participants. Participants came from twenty foreign countries: Argentina, Austria, Canada, Costa Rica, El Salvador, France, Iceland, Indonesia, Italy, Japan, Mexico, The Netherlands, New Zealand, Nicaragua, the Philippines, Romania, Russia, Switzerland, Turkey and the UK. The performance of many geothermal reservoirs outside the United States was described in several of the papers. Professor Roland N. Horne opened the meeting and welcomed visitors. The key note speaker was Marshall Reed, who gave a brief overview of the Department of Energy's current plan. Sixty-six papers were presented in the technical sessions of the workshop. Technical papers were organized into twenty sessions concerning: reservoir assessment, modeling, geology/geochemistry, fracture modeling hot dry rock, geoscience, low enthalpy, injection, well testing, drilling, adsorption and stimulation. Session chairmen were major contributors to the workshop, and we thank: Ben Barker, Bobbie Bishop-Gollan, Tom Box, Jim Combs, John Counsil, Sabodh Garg, Malcolm Grant, Marcel0 Lippmann, Jim Lovekin, John Pritchett, Marshall Reed, Joel Renner, Subir Sanyal, Mike Shook, Alfred Truesdell and Ken Williamson. Jim Lovekin gave the post-dinner speech at the banquet and highlighted the exciting developments in the geothermal field which are taking place worldwide. The Workshop was organized by the Stanford Geothermal Program faculty, staff, and graduate students. We wish to thank our students who operated the audiovisual equipment. Shaun D. Fitzgerald Program Manager.

  2. Report of the twenty-first session, London, 18-22 February 1991

    International Nuclear Information System (INIS)

    1991-01-01

    The Joint Group of Experts on the Scientific Aspects of Marine Pollution (GESAMP) held its twenty-first session at the Headquarters of the International Maritime Organization (IMO), London, from 18 to 22 February 1991. Marine pollution is primarily linked to coastal development. The most serious problems are those associated with inadequately controlled coastal development and intensive human settlement of the coastal zone. GESAMP emphasizes the importance of the following problems and issues: State of the marine environment; comprehensive framework for the assessment and regulation of waste disposal in the marine environment; information on preparations for the United Nations Conference on Environment and Development; review of potentially harmful substances: 1. Carcinogenic substances. 2. Mutagenic substances. 3. Teratogenic substances. 4. Organochlorine compounds. 5. Oil, and other hydrocarbons including used lubricating oils, oil spill dispersants and chemicals used in offshore oil exploration and exploitation; environmental impacts of coastal aquaculture; global change and the air/sea exchange of chemicals; future work programme

  3. Vehicular Networking Conference (VNC)

    NARCIS (Netherlands)

    Altintas, O.; Chen, W.; Heijenk, Geert; Dressler, F.; Ekici, E.; Kargl, Frank; Shigeno, H.; Dietzel, Stefan

    2011-01-01

    On behalf of the Organizing Committee, we would like to welcome you to the third edition of the IEEE Vehicular Networking Conference (IEEE VNC 2011) in Amsterdam, the Netherlands. IEEE VNC is a unique conference sponsored by both the IEEE Communications Society and the IEEE Intelligent

  4. IEEE International Semiconductor Laser Conference (14th) Held in Maui, Hawaii on September 19-23, 1994

    Science.gov (United States)

    1994-09-23

    subcommittee chairs, Tom Koch, James Whiteaway and Yasuhiko Arakawa, for their efforts. The other Conference Committee members, Gary Evans, Joanne...Academy of Sciences, St. Petersburg, Russia Asia end Ausat/agla K. Ikeda Chair: Yasuhiko Arakawa Mitsubishi Electric Corporation, Hyogo, Japan University

  5. Challenges and Opportunities for Occupational Epidemiology in the Twenty-first Century.

    Science.gov (United States)

    Stayner, L T; Collins, J J; Guo, Y L; Heederik, D; Kogevinas, M; Steenland, K; Wesseling, C; Demers, P A

    2017-09-01

    There are many opportunities and challenges for conducting occupational epidemiologic studies today. In this paper, we summarize the discussion of a symposium held at the Epidemiology in Occupational Health (EPICOH) conference, Chicago 2014, on challenges for occupational epidemiology in the twenty-first century. The increasing number of publications and attendance at our conferences suggests that worldwide interest in occupational epidemiology has been growing. There are clearly abundant opportunities for new research in occupational epidemiology. Areas ripe for further work include developing improved methods for exposure assessment, statistical analysis, studying migrant workers and other vulnerable populations, the use of biomarkers, and new hazards. Several major challenges are also discussed such as the rapidly changing nature and location of work, lack of funding, and political/legal conflicts. As long as work exists there will be occupational diseases that demand our attention, and a need for epidemiologic studies designed to characterize these risks and to support the development of preventive strategies. Despite the challenges and given the important past contribution in this field, we are optimistic about the importance and continued vitality of the research field of occupational epidemiology.

  6. Introduction to the special issue on the joint meeting of the 19th IEEE International Symposium on the Applications of Ferroelectrics and the 10th European Conference on the Applications of Polar Dielectrics.

    Science.gov (United States)

    Tsurumi, Takaaki

    2011-09-01

    The joint meeting of the 19th IEEE International Symposium on the Applications of Ferroelectrics and the 10th European Conference on the Applications of Polar Dielectrics took place in Edinburgh from August 9-12, 2010. The conference was attended by 390 delegates from more than 40 different countries. There were 4 plenary speakers, 56 invited speakers, and a further 222 contributed oral presentations in 7 parallel session. In addition there were 215 poster presentations. Key topics addressed at the conference included piezoelectric materials, leadfree piezoelectrics, and multiferroics.

  7. A Critical Feminist and Race Critique of Thomas Piketty's "Capital in the Twenty-First Century"

    Science.gov (United States)

    Moeller, Kathryn

    2016-01-01

    Thomas Piketty's "Capital in the Twenty-first Century" documents the foreboding nature of rising wealth inequality in the twenty-first century. In an effort to promote a more just and democratic global society and rein in the unfettered accumulation of wealth by the few, Piketty calls for a global progressive annual tax on corporate…

  8. Guidelines to Design Engineering Education in the Twenty-First Century for Supporting Innovative Product Development

    Science.gov (United States)

    Violante, Maria Grazia; Vezzetti, Enrico

    2017-01-01

    In the twenty-first century, meeting our technological challenges demands educational excellence, a skilled populace that is ready for the critical challenges society faces. There is widespread consensus, however, that education systems are failing to adequately prepare all students with the essential twenty-first century knowledge and skills…

  9. Twenty-First Century Literacy: A Matter of Scale from Micro to Mega

    Science.gov (United States)

    Brown, Abbie; Slagter van Tryon, Patricia J.

    2010-01-01

    Twenty-first century technologies require educators to look for new ways to teach literacy skills. Current communication methods are combinations of traditional and newer, network-driven forms. This article describes the changes twenty-first century technologies cause in the perception of time, size, distance, audience, and available data, and…

  10. GLOBECOM '89 - IEEE Global Telecommunications Conference and Exhibition, Dallas, TX, Nov. 27-30, 1989, Conference Record. Volumes 1, 2, & 3

    Science.gov (United States)

    The present conference discusses topics in multiwavelength network technology and its applications, advanced digital radio systems in their propagation environment, mobile radio communications, switching programmability, advancements in computer communications, integrated-network management and security, HDTV and image processing in communications, basic exchange communications radio advancements in digital switching, intelligent network evolution, speech coding for telecommunications, and multiple access communications. Also discussed are network designs for quality assurance, recent progress in coherent optical systems, digital radio applications, advanced communications technologies for mobile users, communication software for switching systems, AI and expert systems in network management, intelligent multiplexing nodes, video and image coding, network protocols and performance, system methods in quality and reliability, the design and simulation of lightwave systems, local radio networks, mobile satellite communications systems, fiber networks restoration, packet video networks, human interfaces for future networks, and lightwave networking.

  11. Guidelines to design engineering education in the twenty-first century for supporting innovative product development

    Science.gov (United States)

    Violante, Maria Grazia; Vezzetti, Enrico

    2017-11-01

    In the twenty-first century, meeting our technological challenges demands educational excellence, a skilled populace that is ready for the critical challenges society faces. There is widespread consensus, however, that education systems are failing to adequately prepare all students with the essential twenty-first century knowledge and skills necessary to succeed in life, career, and citizenship. The purpose of this paper is to understand how twenty-first century knowledge and skills can be appropriately embedded in engineering education finalised to innovative product development by using additive manufacturing (AM). The study designs a learning model by which to achieve effective AM education to address the requirements of twenty-first century and to offer students the occasion to experiment with STEM (Science, technology, engineering, and mathematics) concepts. The study is conducted using the quality function deployment (QFD) methodology.

  12. Book Review: Africa and Europe in the Twenty-First Century ...

    African Journals Online (AJOL)

    Abstract. Title: Africa and Europe in the Twenty-First Century. Author: Osita C. Eze and Amadu Sesay. Publisher: Nigerian Institute of International Affairs, 2010, xvi + 397pp, Tables, Index. ISBN: 978-002-102-7 ...

  13. China's iGeneration - Cinema and Moving Image Culture for the Twenty-First Century

    OpenAIRE

    Johnson, Matthew D.; Wagner, Keith B.; Yu, Tianqui; Vulpiani, Luke

    2014-01-01

    Collection of essays on twenty-first century Chinese cinema and moving image culture. This innovative collection of essays on twenty-first century Chinese cinema and moving image culture features contributions from an international community of scholars, critics, and practitioners. Taken together, their perspectives make a compelling case that the past decade has witnessed a radical transformation of conventional notions of cinema. Following China's accession to the WTO in 2001, personal ...

  14. Nuclear power in the twenty-first century - An assessment (Part 1)

    OpenAIRE

    von Hirschhausen, Christian

    2017-01-01

    Nuclear power was one of the most important discoveries of the twentieth century, and it continues to play an important role in twenty-first century discussions about the future energy mix, climate change, innovation, proliferation, geopolitics, and many other crucial policy topics. This paper addresses some key issues around the emergence of nuclear power in the twentieth century and perspectives going forward in the twenty-first, including questions of economics and competitiveness, the str...

  15. Proceedings of the Joint Conference of Australasian College of Physical Scientists and Engineers in Medicine and IEAust College of Biomedical Engineers; Asia/Pacific Region of the IEEE Engineering in Medicine and Biology Society

    International Nuclear Information System (INIS)

    1996-01-01

    This is a celebration of the centenary of Rontgen''s discovery of Xrays. It is also the 50th anniversary of the first hospital physicist appointment in New Zealand. The historical element of the programme will complement the emphasis on current applications of the physical and engineering sciences to medicine and an anticipation of future developments. For the first time the Australasian College of Physical Scientists and Engineers in Medicine, together with the IEAust College of Biomedical Engineers, are joined by the Asia/Pacific Region of the IEEE Engineering in Medicine and Biology Society to make this a truly international conference. The proceedings include many papers on radiology and radiotherapy

  16. Memorias Conferencia Internacional IEEE Mexico 1971, Sobre Sistemas, Redes Y Computadoras. Volumen I and Volumen II. (Proceedings of International Conference of IEEE Concerning Systems, Networks, and Computers. Volume I and Volume II.

    Science.gov (United States)

    Concheiro, A. Alonso, Ed.; And Others

    The following papers in English from this international conference may be of particular interest to those in the field of education. T. Nakahara, A. Tsukamota, and M. Matsumoto describe a computer-aided design technique for an economical urban cable television system. W. D. Wasson and R. K. Chitkara outline a recognition scheme based on analysis…

  17. Border Crossing in Contemporary Brazilian Culture: Global Perspectives from the Twenty-First Century Literary Scene

    Directory of Open Access Journals (Sweden)

    Cimara Valim de Melo

    2016-06-01

    Full Text Available Abstract: This paper investigates the process of internationalisation of Brazilian literature in the twenty-first century from the perspective of the publishing market. For this, we analyse how Brazil has responded to globalisation and what effects of cultural globalisation can be seen in the Brazilian literary scene, focusing on the novel. Observing the movement of the novelists throughout the globe, the reception of Brazilian literature in the United Kingdom and the relations between art and the literary market in Brazil, we intend to provoke some reflections on Brazilian cultural history in the light of the twenty-first century.

  18. Theoretical Contexts and Conceptual Frames for the Study of Twenty-First Century Capitalism

    DEFF Research Database (Denmark)

    Hull Kristensen, Peer; Morgan, Glenn

    2012-01-01

    This chapter argues that the comparative institutionalist approach requires rethinking in the light of developments in the twenty-first century. The chapter emphasizes the following features of the new environment: first, the rise of the BRIC and the emerging economies; secondly, the changed...

  19. Visual Literacy: Does It Enhance Leadership Abilities Required for the Twenty-First Century?

    Science.gov (United States)

    Bintz, Carol

    2016-01-01

    The twenty-first century hosts a well-established global economy, where leaders are required to have increasingly complex skills that include creativity, innovation, vision, relatability, critical thinking and well-honed communications methods. The experience gained by learning to be visually literate includes the ability to see, observe, analyze,…

  20. 76 FR 21741 - Twenty-First Century Communications and Video Programming Accessibility Act; Announcement of Town...

    Science.gov (United States)

    2011-04-18

    ... equipment distribution program for people who are deaf-blind. In addition, the law will fill accessibility... Programming Accessibility Act; Announcement of Town Hall Meeting AGENCY: Federal Communications Commission... The Twenty-First Century Communications and Video Programming Accessibility Act (the Act or CVAA...

  1. How Do Students Value the Importance of Twenty-First Century Skills?

    Science.gov (United States)

    Ahonen, Arto Kalevi; Kinnunen, Päivi

    2015-01-01

    Frameworks of twenty-first century skills have attained a central role in school development and curriculum changes all over the world. There is a common understanding of the need for meta-skills such as problem solving, reasoning, collaboration, and self-regulation. This article presents results from a Finnish study, in which 718 school pupils…

  2. Speaking American: Comparing Supreme Court and Hollywood Racial Interpretation in the Early Twenty-First Century

    Science.gov (United States)

    Hawkins, Paul Henry

    2010-01-01

    Apprehending that race is social, not biological, this study examines U.S. racial formation in the early twenty-first century. In particular, Hollywood and Supreme Court texts are analyzed as media for gathering, shaping and transmitting racial ideas. Representing Hollywood, the 2004 film "Crash" is analyzed. Representing the Supreme Court, the…

  3. Testing Students under Cognitive Capitalism: Knowledge Production of Twenty-First Century Skills

    Science.gov (United States)

    Morgan, Clara

    2016-01-01

    Scholars studying the global governance of education have noted the increasingly important role corporations play in educational policy making. I contribute to this scholarship by examining the Assessment and Teaching of twenty-first century skills (ATC21S™) project, a knowledge production apparatus operating under cognitive capitalism. I analyze…

  4. Humanities: The Unexpected Success Story of the Twenty-First Century

    Science.gov (United States)

    Davis, Virginia

    2012-01-01

    Humanities within universities faced challenges in the latter half of the twentieth century as their value in the modern world was questioned. This paper argues that there is strong potential for the humanities to thrive in the twenty-first century university sector. It outlines some of the managerial implications necessary to ensure that this…

  5. Movies to the Rescue: Keeping the Cold War Relevant for Twenty-First-Century Students

    Science.gov (United States)

    Gokcek, Gigi; Howard, Alison

    2013-01-01

    What are the challenges of teaching Cold War politics to the twenty-first-century student? How might the millennial generation be educated about the political science theories and concepts associated with this period in history? A college student today, who grew up in the post-Cold War era with the Internet, Facebook, Twitter, smart phones,…

  6. Critical Remarks on Piketty's 'Capital in the Twenty-first Century'

    OpenAIRE

    Homburg, Stefan

    2014-01-01

    This paper discusses the central macroeconomic claims that are made in Thomas Piketty's book 'Capital in the Twenty-first Century'. The paper aims to show that Piketty's contentions are not only logically flawed but also contradicted by his own data.

  7. Thomas Piketty – The Adam Smith of the Twenty-First Century?

    Directory of Open Access Journals (Sweden)

    Jacob Dahl Rendtorff

    2014-11-01

    Full Text Available Piketty’s book, Capital in the Twenty-First Century (2014 has become a bestseller in the world. Two month after its publication, it had sold more than 200.000 copies, and this success will surely continue for a long time. Piketty has established a new platform to discuss political economy.

  8. TPACK Updated to Measure Pre-Service Teachers' Twenty-First Century Skills

    Science.gov (United States)

    Valtonen, Teemu; Sointu, Erkko; Kukkonen, Jari; Kontkanen, Sini; Lambert, Matthew C.; Mäkitalo-Siegl, Kati

    2017-01-01

    Twenty-first century skills have attracted significant attention in recent years. Students of today and the future are expected to have the skills necessary for collaborating, problem solving, creative and innovative thinking, and the ability to take advantage of information and communication technology (ICT) applications. Teachers must be…

  9. 2010 Critical Success Factors for the North Carolina Community College System. Twenty First Annual Report

    Science.gov (United States)

    North Carolina Community College System (NJ1), 2010

    2010-01-01

    First mandated by the North Carolina General Assembly in 1989 (S.L. 1989; C. 752; S. 80), the Critical Success Factors report has evolved into the major accountability document for the North Carolina Community College System. This twenty first annual report on the critical success factors is the result of a process undertaken to streamline and…

  10. EXOGENOUS CHALLENGES FOR THE TOURISM INDUSTRY IN THE BEGINNING OF THE TWENTY FIRST CENTURY

    Directory of Open Access Journals (Sweden)

    Akosz Ozan

    2009-05-01

    Full Text Available Tourism is one of the fastest growing industries in the world. Besides its sustained growth the tourism industry has shown in the first years of the twenty first century that it can deal with political, military and natural disasters. The present paper ac

  11. Leadership for Twenty-First-Century Schools and Student Achievement: Lessons Learned from Three Exemplary Cases

    Science.gov (United States)

    Schrum, Lynne; Levin, Barbara B.

    2013-01-01

    The purpose of this research was to understand ways exemplary award winning secondary school leaders have transformed their schools for twenty-first-century education and student achievement. This article presents three diverse case studies and identifies ways that each school's leader and leadership team reconfigured its culture and expectations,…

  12. Synthesis of Carbon Nano tubes: A Revolution in Material Science for the Twenty-First Century

    International Nuclear Information System (INIS)

    Allaf, Abd. W.

    2003-01-01

    The aim of this work is to explain the preparation procedures of single walled carbon nano tubes using arc discharge technique. The optimum conditions of carbon nano tubes synthesis are given. It should be pointed out that this sort of materials would be the twenty-first century materials

  13. Twenty First Century Education: Transformative Education for Sustainability and Responsible Citizenship

    Science.gov (United States)

    Bell, David V. J.

    2016-01-01

    Many ministries of education focus on twenty-first century education but unless they are looking at this topic through a sustainability lens, they will be missing some of its most important elements. The usual emphasis on developing skills for employability in the current global economy begs the question whether the global economy is itself…

  14. The conundrum of religious schools in twenty-first-century Europe

    NARCIS (Netherlands)

    Merry, M.S.

    2015-01-01

    In this paper Merry examines in detail the continued - and curious - popularity of religious schools in an otherwise ‘secular’ twenty-first century Europe. To do this he considers a number of motivations underwriting the decision to place one's child in a religious school and delineates what are

  15. Twenty-first Semiannual Report of the Commission to the Congress, January 1957

    Energy Technology Data Exchange (ETDEWEB)

    Strauss, Lewis L.

    1957-01-31

    The document represents the twenty-first semiannual Atomic Energy Commission (AEC) report to Congress. The report sums up the major activities and developments in the national atomic energy program covering the period July - December 1956. A special part two of this semiannual report addresses specifically Radiation Safety in Atomic Energy Activities.

  16. Teachers' Critical Reflective Practice in the Context of Twenty-First Century Learning

    Science.gov (United States)

    Benade, Leon

    2015-01-01

    In the twenty-first century, learning and teaching at school must prepare young people for engaging in a complex and dynamic world deeply influenced by globalisation and the revolution in digital technology. In addition to the use of digital technologies, is the development of flexible learning spaces. It is claimed that these developments demand,…

  17. Teaching and Learning in the Twenty-First Century: What Is an "Institute of Education" for?

    Science.gov (United States)

    Husbands, Chris

    2012-01-01

    As we begin the twenty-first century, schools and teachers are subject to enormous pressures for change. The revolution in digital technologies, the pressure to develop consistently high-performing schools systems, and the drive between excellence and equity all combine to raise profound questions about the nature of successful teaching and…

  18. Establishing the R&D Agenda for Twenty-First Century Learning

    Science.gov (United States)

    Kay, Ken; Honey, Margaret

    2006-01-01

    Much ink has flowed over the past few years describing the need to incorporate twenty-first century skills into K-12 education. Preparing students to succeed as citizens, thinkers, and workers--the bedrock of any educational system--in this environment means arming them with more than a list of facts and important dates. Infusing twenty-first…

  19. Twenty-first century learning for teachers: helping educators bring new skills into the classroom.

    Science.gov (United States)

    Wilson, John I

    2006-01-01

    The motivation behind every educator's dedication and hard work in the classroom is the knowledge that his or her teaching will result in students' success in life. Educators are committed to implementing twenty-first century skills; they have no question that students need such skills to be equipped for life beyond school. Members of the National Education Association are enthusiastic about the Partnership for 21st Century Skills framework, yet express frustration that many schools do not have adequate resources to make the necessary changes. Teaching these skills poses significant new responsibilities for schools and educators. To make it possible for teachers to build twenty-first century skills into the curriculum, physical and policy infrastructures must exist, professional development and curriculum materials must be offered, and meaningful assessments must be available. With an established understanding of what skills need to be infused into the classroom-problem solving, analysis, and com- munications-and educators' commitment to the new skill set, this chapter explores how to make such a dramatic reform happen. The author discusses existing strategies that will guide educators in infusing twenty-first century skills into traditional content areas such as math, English, geography, and science. Ultimately, public policy regarding educational standards, professional development, assessments, and physical school structures must exist to enable educators to employ twenty-first century skills, leading to student success in contemporary life. Any concern about the cost of bringing this nation's educational system up to par internationally should be offset by the price that not making twenty-first century skills a priority in the classroom will have on future economic well-being.

  20. IEEE Particle Accelerator Conference on Accelerator Science and Technology Held in San Francisco, California on 6-9 May 1991. Volume 2

    Science.gov (United States)

    1991-05-01

    76ER03069. 0-7803-0135-8/91S01.00 ©IEEE 716 represented by the projection VFCos( fRI + OK), where accelerator formulae. ’i depends on-the phase fo relative to...time. In our [3) J. F. Power, B. Blind, A. 3. Jason , "The Los Alaimns application we are not very sensitive to pertubations on Proton Storage Ring...completely reworked the tion frequency of 24 Hz, but a desire to send more beam cooling system. to the WNR/LANSCE users raised the rate to 40 Hz [21. The PFN

  1. Autonomous Robotic Weapons: US Army Innovation for Ground Combat in the Twenty-First Century

    Science.gov (United States)

    2015-05-21

    1 Introduction Today the robot is an accepted fact, but the principle has not been pushed far enough. In the twenty-first century the...2013, accessed March 29, 2015, http://www.bbc.com/news/magazine-21576376?print=true. 113 Steven Kotler , “Say Hello to Comrade Terminator: Russia’s...of autonomous robotic weapons, black- marketed directed energy weapons, and or commercially available software, potential adversaries may find

  2. Automation and robotics for Space Station in the twenty-first century

    Science.gov (United States)

    Willshire, K. F.; Pivirotto, D. L.

    1986-01-01

    Space Station telerobotics will evolve beyond the initial capability into a smarter and more capable system as we enter the twenty-first century. Current technology programs including several proposed ground and flight experiments to enable development of this system are described. Advancements in the areas of machine vision, smart sensors, advanced control architecture, manipulator joint design, end effector design, and artificial intelligence will provide increasingly more autonomous telerobotic systems.

  3. Why American business demands twenty-first century skills: an industry perspective.

    Science.gov (United States)

    Bruett, Karen

    2006-01-01

    Public education is the key to individual and business prosperity. With a vested stake in education, educators, employers, parents, policymakers, and the public should question how this nation's public education system is faring. Knowing that recent international assessments have shown little or no gains in American students' achievement, the author asserts the clear need for change. As both a large American corporate employer and a provider of technology for schools, Dell is concerned with ensuring that youth will thrive in their adult lives. Changing workplace expectations lead to a new list of skills students will need to acquire before completing their schooling. Through technology, Dell supports schools in meeting educational goals, striving to supply students with the necessary skills, referred to as twenty-first century skills. The Partnership for 21st Century Skills, of which Dell is a member, has led an initiative to define what twenty-first century learning should entail. Through extensive research, the partnership has built a framework outlining twenty-first century skills: analytical thinking, communication, collaboration, global awareness, and technological and economic literacy. Dell and the partnership are working state by state to promote the integration of these skills into curricula, professional development for teachers, and classroom environments. The authors describe two current initiatives, one in Virginia, the other in Texas, which both use technology to help student learning. All stakeholders can take part in preparing young people to compete in the global economy. Educators and administrators, legislators, parents, and employers must play their role in helping students be ready for what the workforce and the world has in store for them.

  4. A history of meniscal surgery: from ancient times to the twenty-first century.

    Science.gov (United States)

    Di Matteo, B; Moran, C J; Tarabella, V; Viganò, A; Tomba, P; Marcacci, M; Verdonk, R

    2016-05-01

    The science and surgery of the meniscus have evolved significantly over time. Surgeons and scientists always enjoy looking forward to novel therapies. However, as part of the ongoing effort at optimizing interventions and outcomes, it may also be useful to reflect on important milestones from the past. The aim of the present manuscript was to explore the history of meniscal surgery across the ages, from ancient times to the twenty-first century. Herein, some of the investigations of the pioneers in orthopaedics are described, to underline how their work has influenced the management of the injured meniscus in modern times. Level of evidence V.

  5. Neurogenetics in Child Neurology: Redefining a Discipline in the Twenty-first Century.

    Science.gov (United States)

    Kaufmann, Walter E

    2016-12-01

    Increasing knowledge on genetic etiology of pediatric neurologic disorders is affecting the practice of the specialty. I reviewed here the history of pediatric neurologic disorder classification and the role of genetics in the process. I also discussed the concept of clinical neurogenetics, with its role in clinical practice, education, and research. Finally, I propose a flexible model for clinical neurogenetics in child neurology in the twenty-first century. In combination with disorder-specific clinical programs, clinical neurogenetics can become a home for complex clinical issues, repository of genetic diagnostic advances, educational resource, and research engine in child neurology.

  6. Managing the twenty-first century reference department challenges and prospects

    CERN Document Server

    Katz, Linda S

    2014-01-01

    Learn the skills needed to update and manage a reference department that efficiently meets the needs of clients today?and tomorrow! Managing the Twenty-First Century Reference Department: Challenges and Prospects provides librarians with the knowledge and skills they need to manage an effective reference service. Full of useful and practical ideas, this book presents successful methods for recruiting and retaining capable reference department staff and management, training new employees and adapting current services to an evolving field. Expert practitioners address the changing role of the r

  7. Proceedings of IEEE Machine Learning for Signal Processing Workshop XV

    DEFF Research Database (Denmark)

    Larsen, Jan

    These proceedings contains refereed papers presented at the Fifteenth IEEE Workshop on Machine Learning for Signal Processing (MLSP’2005), held in Mystic, Connecticut, USA, September 28-30, 2005. This is a continuation of the IEEE Workshops on Neural Networks for Signal Processing (NNSP) organized...... by the NNSP Technical Committee of the IEEE Signal Processing Society. The name of the Technical Committee, hence of the Workshop, was changed to Machine Learning for Signal Processing in September 2003 to better reflect the areas represented by the Technical Committee. The conference is organized...... by the Machine Learning for Signal Processing Technical Committee with sponsorship of the IEEE Signal Processing Society. Following the practice started two years ago, the bound volume of the proceedings is going to be published by IEEE following the Workshop, and we are pleased to offer to conference attendees...

  8. 2014 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE)

    OpenAIRE

    Chen, Shuai; Maeda, Yoichiro; Takahashi, Yasutake

    2014-01-01

    In the research of interactive music generation,we propose a music generation method, that the computer generates the music, under the recognition of human musicconductor's gestures. In this research, the generated music is tuned by the recognized gestures for the parameters of the networkof chaotic elements in realtime. To make outcomes more closer to music, a different method is proposed to make melody specifiable. Music theories are embedded in the algorithm, as a result, the generated mu...

  9. A Farewell to Innocence? African Youth and Violence in the Twenty-First Century

    Directory of Open Access Journals (Sweden)

    Charles Ugochukwu Ukeje

    2012-12-01

    Full Text Available This is a broad examination of the issue of youth violence in twenty-first-century Africa, looking at the context within which a youth culture of violence has evolved and attempting to understand the underlining discourses of hegemony and power that drive it. The article focuses specifically on youth violence as apolitical response to the dynamics of (disempowerment, exclusion, and economic crisis and uses (postconflict states like Liberia, Sierra Leone, and Nigeriato explain not just the overall challenge of youth violence but also the nature of responses that it has elicited from established structures of authority. Youth violence is in many ways an expression of youth agency in the context of a social and economic system that provides little opportunity.

  10. Ecological restoration should be redefined for the twenty-first century.

    Science.gov (United States)

    Martin, David M

    2017-09-24

    Forty years ago, ecological restoration was conceptualized through a natural science lens. Today, ecological restoration has evolved into a social and scientific concept. The duality of ecological restoration is acknowledged in guidance documents on the subject but is not apparent in its definition. Current definitions reflect our views about what ecological restoration does but not why we do it. This viewpoint does not give appropriate credit to contributions from social sciences, nor does it provide compelling goals for people with different motivating rationales to engage in or support restoration. In this study, I give a concise history of the conceptualization and definition of ecological restoration, and I propose an alternative definition and corresponding viewpoint on restoration goal-setting to meet twenty-first century scientific and public inquiry.

  11. Global threats from invasive alien species in the twenty-first century and national response capacities

    Science.gov (United States)

    Early, Regan; Bradley, Bethany A.; Dukes, Jeffrey S.; Lawler, Joshua J.; Olden, Julian D.; Blumenthal, Dana M.; Gonzalez, Patrick; Grosholz, Edwin D.; Ibañez, Ines; Miller, Luke P.; Sorte, Cascade J. B.; Tatem, Andrew J.

    2016-01-01

    Invasive alien species (IAS) threaten human livelihoods and biodiversity globally. Increasing globalization facilitates IAS arrival, and environmental changes, including climate change, facilitate IAS establishment. Here we provide the first global, spatial analysis of the terrestrial threat from IAS in light of twenty-first century globalization and environmental change, and evaluate national capacities to prevent and manage species invasions. We find that one-sixth of the global land surface is highly vulnerable to invasion, including substantial areas in developing economies and biodiversity hotspots. The dominant invasion vectors differ between high-income countries (imports, particularly of plants and pets) and low-income countries (air travel). Uniting data on the causes of introduction and establishment can improve early-warning and eradication schemes. Most countries have limited capacity to act against invasions. In particular, we reveal a clear need for proactive invasion strategies in areas with high poverty levels, high biodiversity and low historical levels of invasion. PMID:27549569

  12. Niels Bohr and the philosophy of physics twenty-first century perspectives

    CERN Document Server

    Folse, Henry

    2017-01-01

    Niels Bohr and Philosophy of Physics: Twenty-First Century Perspectives examines the philosophical views, influences and legacy of the Nobel Prize physicist and philosophical spokesman of the quantum revolution, Niels Bohr. The sixteen contributions in this collection by some of the best contemporary philosophers and physicists writing on Bohr's philosophy today all carefully distinguish his subtle and unique interpretation of quantum mechanics from views often imputed to him under the banner of the “Copenhagen Interpretation.” With respect to philosophical influences on Bohr's outlook, the contributors analyse prominent similarities between his viewpoint and Kantian ways of thinking, the views of the Danish philosopher Harald Høffding, and themes characteristic of American pragmatism. In recognizing the importance of Bohr's epistemological naturalism they examine his defence of the indispensability of classical concepts from a variety of different perspectives. This collection shows us that Bohr's int...

  13. Golf science research at the beginning of the twenty-first century.

    Science.gov (United States)

    Farrally, M R; Cochran, A J; Crews, D J; Hurdzan, M J; Price, R J; Snow, J T; Thomas, P R

    2003-09-01

    At the beginning of the twenty-first century, there are 30,000 golf courses and 55 million people who play golf worldwide. In the USA alone, the value of golf club memberships sold in the 1990s was US dollar 3.2 billion. Underpinning this significant human activity is a wide variety of people researching and applying science to sustain and develop the game. The 11 golf science disciplines recognized by the World Scientific Congress of Golf have reported 311 papers at four world congresses since 1990. Additionally, scientific papers have been published in discipline-specific peer-reviewed journals, research has been sponsored by the two governing bodies of golf, the Royal and Ancient Golf Club of St. Andrews and the United States Golf Association, and confidential research is undertaken by commercial companies, especially equipment manufacturers. This paper reviews much of this human endeavour and points the way forward for future research into golf.

  14. Civil Rights Laws as Tools to Advance Health in the Twenty-First Century.

    Science.gov (United States)

    McGowan, Angela K; Lee, Mary M; Meneses, Cristina M; Perkins, Jane; Youdelman, Mara

    2016-01-01

    To improve health in the twenty-first century, to promote both access to and quality of health care services and delivery, and to address significant health disparities, legal and policy approaches, specifically those focused on civil rights, could be used more intentionally and strategically. This review describes how civil rights laws, and their implementation and enforcement, help to encourage health in the United States, and it provides examples for peers around the world. The review uses a broad lens to define health for both classes of individuals and their communities--places where people live, learn, work, and play. Suggestions are offered for improving health and equity broadly, especially within societal groups and marginalized populations. These recommendations include multisectorial approaches that focus on the social determinants of health.

  15. Uncertainty in Twenty-First-Century CMIP5 Sea Level Projections

    Science.gov (United States)

    Little, Christopher M.; Horton, Radley M.; Kopp, Robert E.; Oppenheimer, Michael; Yip, Stan

    2015-01-01

    The representative concentration pathway (RCP) simulations included in phase 5 of the Coupled Model Intercomparison Project (CMIP5) quantify the response of the climate system to different natural and anthropogenic forcing scenarios. These simulations differ because of 1) forcing, 2) the representation of the climate system in atmosphere-ocean general circulation models (AOGCMs), and 3) the presence of unforced (internal) variability. Global and local sea level rise projections derived from these simulations, and the emergence of distinct responses to the four RCPs depend on the relative magnitude of these sources of uncertainty at different lead times. Here, the uncertainty in CMIP5 projections of sea level is partitioned at global and local scales, using a 164-member ensemble of twenty-first-century simulations. Local projections at New York City (NYSL) are highlighted. The partition between model uncertainty, scenario uncertainty, and internal variability in global mean sea level (GMSL) is qualitatively consistent with that of surface air temperature, with model uncertainty dominant for most of the twenty-first century. Locally, model uncertainty is dominant through 2100, with maxima in the North Atlantic and the Arctic Ocean. The model spread is driven largely by 4 of the 16 AOGCMs in the ensemble; these models exhibit outlying behavior in all RCPs and in both GMSL and NYSL. The magnitude of internal variability varies widely by location and across models, leading to differences of several decades in the local emergence of RCPs. The AOGCM spread, and its sensitivity to model exclusion and/or weighting, has important implications for sea level assessments, especially if a local risk management approach is utilized.

  16. Twenty-first century learning after school: the case of Junior Achievement Worldwide.

    Science.gov (United States)

    Box, John M

    2006-01-01

    Efforts to increase after-school programming indicate the nation's concern about how youth are engaged during out-of-school time. There are clear benefits to extending the learning that goes on during the school day. Research from the U.S. Departments of Education and Justice shows that after-school participants do better in school and have stronger expectations for the future than youth who are not occupied after school. And the need is evident: 14.3 million students return to an empty house after school, yet only 6.5 million children are currently enrolled in after-school programs. If an after-school program were available, parents of 15.3 million would enroll their child. JA Worldwide began in 1919 and has been rooted in the afterschool arena from its origins. Its after-school programs teach students about the free enterprise system through curriculum focusing on business, citizenship, economics, entrepreneurship, ethics and character, financial literacy, and career development. At the same time, JA Worldwide incorporates hands-on learning and engagement with adults as role models, both key elements to a successful after-school program. Now focused on developing curriculum emphasizing skills needed for the twenty-first century, JA adopted the key elements laid out for after-school programs by the Partnership for 21st Century Skills. To ensure that the next generation of students enters the workforce prepared, America's education system must provide the required knowledge, skills, and attitudes. Programs such as JA Worldwide serve as models of how to provide the twenty-first century skills that all students need to succeed.

  17. Twenty-first century learning in states: the case of the Massachusetts educational system.

    Science.gov (United States)

    Driscoll, David P

    2006-01-01

    A current crisis in education is leaving students less prepared to succeed in the working world than any generation before them. Increasingly complex external, nonacademic pressures have an impact on many of today's students, often causing them to drop out of school. Only 76 percent of Massachusetts high school students graduate, and only 29 percent earn a college degree. National figures are worse. Most educational institutions share a common goal to support students in becoming skilled, productive, successful members of society, but the author argues that this goal is not being met. Despite the constant changes in the world, educational practices have remained static. Most public schools are not adapting to meet the shifting needs of students. Universities are not able to prepare the right mix of prospective employees for the demands of the job market; for example, schools are graduating only 10 percent of the needed engineers. Institutions of higher learning cannot keep up with employers' needs in an evolving global market: strong math, science, and writing abilities; critical thinking skills; and the ability to work in teams. The author draws on exemplary efforts at work in his home state of Massachusetts--whose improvements in student achievement outcomes have been some of the best in the nation--to suggest there is promise in twenty-first century learning. Middle school students involved in a NASA-funded project write proposals, work in teams, and engage in peer review. Older students participate in enhanced, hands-on cooperative school-to-work and after-school programs. Schools are starting to offer expanded day learning, increasing the number of hours they are engaged in formal learning. Yet such programs have not reached significant levels of scale. The author calls for a major shift in education to help today's students be successful in the twenty-first century.

  18. IEEE International Symposium on Biomedical Imaging.

    Science.gov (United States)

    2017-01-01

    The IEEE International Symposium on Biomedical Imaging (ISBI) is a scientific conference dedicated to mathematical, algorithmic, and computational aspects of biological and biomedical imaging, across all scales of observation. It fosters knowledge transfer among different imaging communities and contributes to an integrative approach to biomedical imaging. ISBI is a joint initiative from the IEEE Signal Processing Society (SPS) and the IEEE Engineering in Medicine and Biology Society (EMBS). The 2018 meeting will include tutorials, and a scientific program composed of plenary talks, invited special sessions, challenges, as well as oral and poster presentations of peer-reviewed papers. High-quality papers are requested containing original contributions to the topics of interest including image formation and reconstruction, computational and statistical image processing and analysis, dynamic imaging, visualization, image quality assessment, and physical, biological, and statistical modeling. Accepted 4-page regular papers will be published in the symposium proceedings published by IEEE and included in IEEE Xplore. To encourage attendance by a broader audience of imaging scientists and offer additional presentation opportunities, ISBI 2018 will continue to have a second track featuring posters selected from 1-page abstract submissions without subsequent archival publication.

  19. Projected status of the Pacific walrus (Odobenus rosmarus divergens) in the twenty-first century

    Science.gov (United States)

    Jay, Chadwick V.; Marcot, Bruce G.; Douglas, David C.

    2011-01-01

    Extensive and rapid losses of sea ice in the Arctic have raised conservation concerns for the Pacific walrus (Odobenus rosmarus divergens), a large pinniped inhabiting arctic and subarctic continental shelf waters of the Chukchi and Bering seas. We developed a Bayesian network model to integrate potential effects of changing environmental conditions and anthropogenic stressors on the future status of the Pacific walrus population at four periods through the twenty-first century. The model framework allowed for inclusion of various sources and levels of knowledge, and representation of structural and parameter uncertainties. Walrus outcome probabilities through the century reflected a clear trend of worsening conditions for the subspecies. From the current observation period to the end of century, the greatest change in walrus outcome probabilities was a progressive decrease in the outcome state of robust and a concomitant increase in the outcome state of vulnerable. The probabilities of rare and extirpated states each progressively increased but remained level of 10% in 2004 to 22% by 2050 and 40% by 2095. The degree of uncertainty in walrus outcomes increased monotonically over future periods. In the model, sea ice habitat (particularly for summer/fall) and harvest levels had the greatest influence on future population outcomes. Other potential stressors had much smaller influences on walrus outcomes, mostly because of uncertainty in their future states and our current poor understanding of their mechanistic influence on walrus abundance.

  20. New and newer[The New Physics for the Twenty-First Century

    Energy Technology Data Exchange (ETDEWEB)

    Clark, C. [Electron and Optical Physics Division, National Institute of Standards and Technology, MD (United States)]. E-mail: clark@mail.nist.gov

    2006-09-15

    Stephen Hawking's inaugural lecture as Lucasian Professor of Mathematics at Cambridge University in 1980 caused quite a stir. Its title - 'Is the end in sight for theoretical physics?' - raised the prospect of a unified 'theory of everything'. Hawking suggested that there was a good chance of resolving the remaining inconsistencies between the two big 'theories of something' - quantum mechanics and general relativity - before the turn of the century. My first impression on reading The New Physics for the Twenty-First Century, a collection of essays edited by science journalist Gordon Fraser, is that a theory of everything may still be attainable by the turn of the century. However, there is now 20 times more of everything in the universe than there was in the past century, 95% of which no-one has ever actually seen, or had even heard of until a few years ago - as summarized in articles by Wendy Freedman, Edward Kolb and Ronald Adler. Despite this, Michael Green describes amazing developments in string theory that could tie everything together, if one could just figure out which, if any, of the apparently infinite varieties of string theory applies to our world, and why. (U.K.)

  1. Indication to Open Anatrophic Nephrolithotomy in the Twenty-First Century: A Case Report

    Directory of Open Access Journals (Sweden)

    Alfredo Maria Bove

    2012-01-01

    Full Text Available Introduction. Advances in endourology have greatly reduced indications to open surgery in the treatment of staghorn kidney stones. Nevertheless in our experience, open surgery still represents the treatment of choice in rare cases. Case Report. A 71-year-old morbidly obese female patient complaining about occasional left flank pain, and recurrent cystitis for many years, presented bilateral staghorn kidney stones. Comorbidities were obesity (BMI 36.2, hypertension, type II diabetes, and chronic obstructive pulmunary disease (COPD hyperlipidemia. Due to these comorbidities, endoscopic and laparoscopic approaches were not indicated. We offered the patient staged open anatrophic nephrolithotomy. Results. Operative time was 180 minutes. Blood loss was 500 cc. requiring one unit of packed red blood cells. Hospital stay was 7 days. The renal function was unaffected based on preoperative and postoperative serum creatinine levels. Stone-free status of the left kidney was confirmed after surgery with CT scan. Conclusions. Open surgery can represent a valid alterative in the treatment of staghorn kidney stones of very selected cases. A discussion of the current indications in the twenty-first century is presented.

  2. Diverging seasonal extremes for ocean acidification during the twenty-first century

    Science.gov (United States)

    Kwiatkowski, Lester; Orr, James C.

    2018-01-01

    How ocean acidification will affect marine organisms depends on changes in both the long-term mean and the short-term temporal variability of carbonate chemistry1-8. Although the decadal-to-centennial response to atmospheric CO2 and climate change is constrained by observations and models1, 9, little is known about corresponding changes in seasonality10-12, particularly for pH. Here we assess the latter by analysing nine earth system models (ESMs) forced with a business-as-usual emissions scenario13. During the twenty-first century, the seasonal cycle of surface-ocean pH was attenuated by 16 ± 7%, on average, whereas that for hydrogen ion concentration [H+] was amplified by 81 ± 16%. Simultaneously, the seasonal amplitude of the aragonite saturation state (Ωarag) was attenuated except in the subtropics, where it was amplified. These contrasting changes derive from regionally varying sensitivities of these variables to atmospheric CO2 and climate change and to diverging trends in seasonal extremes in the primary controlling variables (temperature, dissolved inorganic carbon and alkalinity). Projected seasonality changes will tend to exacerbate the impacts of increasing [H+] on marine organisms during the summer and ameliorate the impacts during the winter, although the opposite holds in the high latitudes. Similarly, over most of the ocean, impacts from declining Ωarag are likely to be intensified during the summer and dampened during the winter.

  3. Between vanguard and exclusion- young people of the twenty-first century

    Directory of Open Access Journals (Sweden)

    Agnieszka Gil

    2011-12-01

    Full Text Available This study has been narrowed down to reveal a paradox. Here the vanguard of culture and civilization - which is regarded as young people of the twenty-first century – is embroiled in a discourse of exclusion: economic, political and cultural life. In secondary school programs and high schools we do not find specific references and studies, primarily based on the needs of students, about the theory of popular culture and cultural education in the area of pop culture. The paradox of exclusion of mainstream culture from educational discourse is schizophrenic. The political exclusion of young people of the XXI century I consider all the disparaging scientific discourse, which skips the actual media and communication competence of young people. Prosumers, cognitarchy, digital natives, C-generation – they are for the modern economy “Silicon Valley” - their market power to exclude is already unstoppable. In other areas it remains to be considered whether excluding young people from the cultural discourse will not deprive our future teachers and translators of the next civilization revolution of social reality...

  4. Civil engineering at the crossroads in the twenty-first century.

    Science.gov (United States)

    Ramírez, Francisco; Seco, Andres

    2012-12-01

    The twenty-first century presents a major challenge for civil engineering. The magnitude and future importance of some of the problems perceived by society are directly related to the field of the civil engineer, implying an inescapable burden of responsibility for a group whose technical soundness, rational approach and efficiency is highly valued and respected by the citizen. However, the substantial changes in society and in the way it perceives the problems that it considers important call for a thorough review of our structures, both professional and educational; so that our profession, with its undeniable historical prestige, may modernize certain approaches and attitudes in order to continue to be a reliable instrument in the service of society, giving priority from an ethical standpoint to its actions in pursuit of "the public good". It possesses important tools to facilitate this work (new technologies, the development of communications, the transmission of scientific thought.···); but there is nevertheless a need for deep reflection on the very essence of civil engineering: what we want it to be in the future, and the ability and willingness to take the lead at a time when society needs disinterested messages, technically supported, reasonably presented and dispassionately transmitted.

  5. Twenty-first nuclear accident dosimetry intercomparison study, August 6-10, 1984

    International Nuclear Information System (INIS)

    Swaja, R.E.; Ragan, G.E.; Sims, C.S.

    1985-05-01

    The twenty-first in a series of nuclear accident dosimetry (NAD) intercomparison (NAD) studies was conducted at the Oak Ridge National Laboratory's Dosimetry Applications Research Facility during August 6-10, 1984. The Health Physics Research Reactor operated in the pulse mode was used to simulate three criticality accidents with different radiation fields. Participants from five organizations measured neutron doses between 0.53 and 4.36 Gy and gamma doses between 0.19 and 1.01 Gy at area monitoring stations and on phantoms. About 75% of all neutron dose estimates based on foil activation, hair activation, simulated blood sodium activation, and thermoluminescent methods were within +-25% of reference values. Approximately 86% of all gamma results measured using thermoluminescent (TLD-700 or CaSO 4 ) systems were within +-20% of reference doses which represents a significant improvement over previous studies. Improvements observed in the ability of intercomparison participants to estimate neutron and gamma doses under criticality accident conditions can be partly attributed to experience in previous NAD studies which have provided practical tests of dosimetry systems, enabled participants to improve evaluation methods, and standardized dose reporting conventions. 16 refs., 15 tabs

  6. Space power technology for the twenty-first century (SPT21)

    International Nuclear Information System (INIS)

    Borger, W.U.; Massie, L.D.

    1988-01-01

    During the spring and summer months of 1987, the Aero Propulsion Laboratory of the Air Force Wright Aeronautical Laboratories, Wright-Patterson AFB, Ohio in cooperation with the Air Force Space Technology Center at Kirtland AFB, New Mexico, undertook an initiative to develop a Strategic Plan for Space Power Technology Development. The initiative was called SPT21, Space Power Technology for the Twenty-First Century. The planning process involved the participation of other Government organizations (U.S. Army, Navy, DOE and NASA) along with major aerospace companies and universities. Following an SPT21 kickoff meeting on 28 May 1987, detailed strategic planning was accomplished through seven (7) Space Power Technology Discipline Workshops commencing in June 1987 and concluding in August 1987. Technology Discipline Workshops were conducted in the following areas: (1) Solar Thermal Dynamic Power Systems (2) Solar Photovoltaic Cells and Arrays (3) Thermal Management Technology (4) Energy Storage Technology (5) Nuclear Power Systems Technology (6) Power Conditioning, Distribution and Control and (7) Systems Technology/Advanced Concepts. This technical paper summarizes the planning process and describes the salient findings and conclusions of the workshops

  7. Developing twenty-first century skills: insights from an intensive interdisciplinary workshop Mosaic of Life

    Directory of Open Access Journals (Sweden)

    Tamara Milosevic

    2013-11-01

    Full Text Available The Baltic Sea, one of the world’s largest semi-enclosed seas, which, with its very low salinity and quasi-isolation from the big oceans cannot decide whether it is a sea or a large lake. This geologically-unique environment supports an even more surprising and delicate marine ecosystem, where a complex community of fishes, marine mammals and important microscopic organisms creates a magical mosaic of life. Humans have enjoyed the abundance of life in the Baltic Sea for thousands of years, and major Scandinavian and Baltic cities have oriented themselves towards this geo-ecosystem in order to develop and seek ecological, economical and cultural inspiration and wealth. The ‘Mosaic of Life’ workshop aimed at going beyond the obvious in examining the meaning of the Baltic Sea by gathering together a selection of young, creative minds from different backgrounds ranging from the arts and economics to geology and life sciences. This intensive workshop was designed as a unique training opportunity to develop essential twenty-first century skills – to introduce and develop creative, critical and interdisciplinary thinking and collaborative teamwork, as well as to foster a visual and scientific literacy, using project-based learning and hands-on activities. Our final goal has been to be inspired by the resulting connections, differences and unifying concepts, creating innovative, interdisciplinary projects which would look further than the sea – further than the eye can see and further into the future.

  8. IEEE Smart Grid Series of Standards IEEE 2030 (Interoperability) and IEEE 1547 (Interconnection) Status: Preprint

    Energy Technology Data Exchange (ETDEWEB)

    Basso, T.; DeBlasio, R.

    2012-04-01

    The IEEE American National Standards smart grid publications and standards development projects IEEE 2030, which addresses smart grid interoperability, and IEEE 1547TM, which addresses distributed resources interconnection with the grid, have made substantial progress since 2009. The IEEE 2030TM and 1547 standards series focus on systems-level aspects and cover many of the technical integration issues involved in a mature smart grid. The status and highlights of these two IEEE series of standards, which are sponsored by IEEE Standards Coordinating Committee 21 (SCC21), are provided in this paper.

  9. Twenty-first century learning in schools: A case study of New Technology High School in Napa, California.

    Science.gov (United States)

    Pearlman, Bob

    2006-01-01

    The most pertinent question concerning teaching and learning in the twenty-first century is not what knowledge and skills students need--that laundry list was identified over a decade ago--but rather how to foster twenty-first century learning. What curricula, experiences, assessments, environments, and technology best support twenty-first century learning? New Technology High School (NTHS) in Napa, California, is one example of a successful twenty-first century school. In this chapter, the author describes the components of this exemplary high school, illustrating an environment that will cultivate twenty-first century student learning. New Technology High School began by defining eight learning outcomes, aligned with the standards of the Partnership for 21st Century Skills; to graduate, students demonstrate mastery of these outcomes through an online portfolio. To help students achieve the outcomes, NTHS employs project- and problem-based learning. Whereas in traditional classrooms students work alone on short-term assignments that do not lend themselves to deep understanding, the project-based learning approach has students working in teams on long-term, in-depth, rigorous projects. Students' work is supported by the school's workplace-like environment and effectiv use of technology. Meaningful assessment is essential to project-based learning; students receive continuous feedback, helping them become self-directed learners. In fact, NTHS uses outcome-based grading through which students constantly know how they are performing on the twenty-first century outcomes. Research has shown that NTHS graduates are better prepared for postsecondary education, careers, and citizenship than their peers from other schools. To facilitate twenty-first century learning, all schools need to rethink their approach to teaching and learning. New Technology High School is one way to do so.

  10. Strong Inference in Mathematical Modeling: A Method for Robust Science in the Twenty-First Century.

    Science.gov (United States)

    Ganusov, Vitaly V

    2016-01-01

    While there are many opinions on what mathematical modeling in biology is, in essence, modeling is a mathematical tool, like a microscope, which allows consequences to logically follow from a set of assumptions. Only when this tool is applied appropriately, as microscope is used to look at small items, it may allow to understand importance of specific mechanisms/assumptions in biological processes. Mathematical modeling can be less useful or even misleading if used inappropriately, for example, when a microscope is used to study stars. According to some philosophers (Oreskes et al., 1994), the best use of mathematical models is not when a model is used to confirm a hypothesis but rather when a model shows inconsistency of the model (defined by a specific set of assumptions) and data. Following the principle of strong inference for experimental sciences proposed by Platt (1964), I suggest "strong inference in mathematical modeling" as an effective and robust way of using mathematical modeling to understand mechanisms driving dynamics of biological systems. The major steps of strong inference in mathematical modeling are (1) to develop multiple alternative models for the phenomenon in question; (2) to compare the models with available experimental data and to determine which of the models are not consistent with the data; (3) to determine reasons why rejected models failed to explain the data, and (4) to suggest experiments which would allow to discriminate between remaining alternative models. The use of strong inference is likely to provide better robustness of predictions of mathematical models and it should be strongly encouraged in mathematical modeling-based publications in the Twenty-First century.

  11. Fusion energy from the Moon for the twenty-first century

    International Nuclear Information System (INIS)

    Kulcinski, G.L.; Cameron, E.N.; Santarius, J.F.; Sviatoslavsky, I.N.; Wittenberg, L.J.; Schmitt, H.H.

    1992-01-01

    It is shown in this paper that the D-He-3 fusion fuel cycle is not only credible from a physics standpoint, but that its breakeven and ignition characteristics could be developed on roughly the same time schedule as the DT cycle. It was also shown that the extremely low fraction of power in neutrons, the lack of significant radioactivity in the reactants, and the potential for very high conversion efficiencies, can result in definite advantages for the D-He-3 cycle with respect to DT fusion and fission reactors in the twenty-first century. More specifically, the D-He-3 cycle can accomplish the following: (1) eliminate the need for deep geologic waste burial facilities and the wastes can qualify for Class A, near-surface land burial; (2) allow inherently safe reactors to be built that, under the worst conceivable accident, cannot cause a civilian fatality or result in a significant (greater than 100 mrem) exposure to a member of the public; (3) reduce the radiation damage levels to a point where no scheduled replacement of reactor structural components is required, i.e., full reactor lifetimes (approximately 30 FPY) can be credibly claimed; (4) increase the reliability and availability of fusion reactors compared to DT systems because of the greatly reduced radioactivity, the low neutron damage, and the elimination of T breeding; and (5) greatly reduce the capital costs of fusion power plants (compared to DT systems) by as much as 50 percent and present the potential for a significant reduction on the COE. The concepts presented in this paper tie together two of the most ambitious high-technology endeavors of the twentieth century: the development of controlled thermonuclear fusion for civilian power applications and the utilization of outer space for the benefit of mankind on Earth

  12. Gendering inequality: a note on Piketty's Capital in the twenty-first century.

    Science.gov (United States)

    Perrons, Diane

    2014-12-01

    Thomas Piketty's Capital in the Twenty-First Century is remarkable for moving inequality from the margins to mainstream debate through detailed analysis of longitudinal statistics and, for an economist, by advocating an interdisciplinary perspective and writing in a witty and accessible style. With reference to the post 1970 period, when wage increases are largely responsible for the increase in inequality, Piketty shows how patrimonial capitalists (elite managers) in the top decile and centile of the distribution appropriate a growing share of social wealth as a consequence of their 'power to set their own remuneration' in the context of tolerant social norms rather than through their productive contributions. Piketty raises but defers the question of where these social norms come from to other disciplines. A Feminist Economics perspective indicates that these questions are central to a more inclusive form of economic analysis and such an approach would enrich Piketty's analysis in two main ways. First, by paying greater attention to the processes and social norms through which inequalities are produced and justified and second by highlighting the ways in which inequality is experienced differently depending not only on class, but also on other aspects of identity including gender. This approach also suggests that it is necessary to supplement the ex-post redistributive policies recommended by Piketty: a global wealth tax and more steeply progressive income tax, with ex-ante measures to stop the rise in wage inequality in the first place, especially by bridging the huge gulf that exists between those who care for people and those who manage money. © London School of Economics and Political Science 2014.

  13. Latvian Security and Defense Policy within the Twenty-First Century Security Environment

    Directory of Open Access Journals (Sweden)

    Rublovskis Raimonds

    2014-12-01

    Full Text Available The aim of this paper is to analyze fundamental factors which form and profoundly shape security and defense policy of the Republic of Latvia. One can argue that historical background, geographical location, common institutional history within the former Soviet Union, the Russia factor, the relative smallness of the territory of state and the population, the ethnic composition of the population, the low density of the population and rather limited financial and manpower resources available for the defense of the Republic of Latvia are the key factors of influence on the state security and defense policy. The core principles of the security and defense policy of Latvia are the membership in powerful global military alliance of NATO and bilateral strategic partnership with the United States. However, security and defense cooperation among the three Baltic States as well as enhanced cooperation within the Baltic-Nordic framework is seen as an important supplementary factor for the increased security of the Republic of Latvia. Latvia has developed a sustainable legal and institutional framework in order to contribute to state security and defense; however, security challenges and significant changes within the global security environment of the twenty-first century will further challenge the ability of the Republic of Latvia to sustain its current legal framework, and more importantly, current institutional structure of Latvian security and defense architecture. Significant internal and external challenges will impact the fundamental pillars of Latvian security and defense policy, such as American strategic shift to the Pacific, and lack of political will to increase defense budgets in European part of NATO. It has to be clear that very independence, security and defense of the Republic of Latvia depend on the ability of NATO to remain an effective organization with timely and efficient decision-making, and the ability of the United States to remain

  14. Strong Inference in Mathematical Modeling: A Method for Robust Science in the Twenty-First Century

    Science.gov (United States)

    Ganusov, Vitaly V.

    2016-01-01

    While there are many opinions on what mathematical modeling in biology is, in essence, modeling is a mathematical tool, like a microscope, which allows consequences to logically follow from a set of assumptions. Only when this tool is applied appropriately, as microscope is used to look at small items, it may allow to understand importance of specific mechanisms/assumptions in biological processes. Mathematical modeling can be less useful or even misleading if used inappropriately, for example, when a microscope is used to study stars. According to some philosophers (Oreskes et al., 1994), the best use of mathematical models is not when a model is used to confirm a hypothesis but rather when a model shows inconsistency of the model (defined by a specific set of assumptions) and data. Following the principle of strong inference for experimental sciences proposed by Platt (1964), I suggest “strong inference in mathematical modeling” as an effective and robust way of using mathematical modeling to understand mechanisms driving dynamics of biological systems. The major steps of strong inference in mathematical modeling are (1) to develop multiple alternative models for the phenomenon in question; (2) to compare the models with available experimental data and to determine which of the models are not consistent with the data; (3) to determine reasons why rejected models failed to explain the data, and (4) to suggest experiments which would allow to discriminate between remaining alternative models. The use of strong inference is likely to provide better robustness of predictions of mathematical models and it should be strongly encouraged in mathematical modeling-based publications in the Twenty-First century. PMID:27499750

  15. A Tale within a Tale: Mise en Abyme Adaptations of the Twenty-first Century

    Directory of Open Access Journals (Sweden)

    Željka Flegar

    2017-12-01

    Full Text Available In accord with the promise made by Henry Jenkins that “old and new media will interact in ever more complex ways” (Convergence Culture 6, this research observes metamodern fairy tale adaptations of the twenty-first century in light of Christina Bacchilega’s construct of the fairy-tale web and Henry Jenkins’ theory of convergence culture and transmedia storytelling. The research will address the growing trend of embedding “wonder tale” collections within the context of a larger narrative as an artefact of significance, power, and material value. Although original tales with known authorship, these fairy tale adaptations are appended to the mythology and culture of the fantastic secondary worlds. Such texts tend to be parodic, subversive, and even carnivalesque (Bakhtin; Stephens, providing a commentary on the culture of their origin, as well as our own. By blending cultures, styles, and formats, mise en abyme wonder tales also result in the empowerment of specifically marginalised groups. Generally defined as spin-offs that are otherwise a part of a complex inter- and hypertextual web, these fairy tale collections constitute a metafictional body of knowledge and wisdom. In the digital era much focus is placed on multimodal, hypertextual, and transmedia narratives with a significant influence of fandom on the production of such literary works. The study will focus on the popular examples of such practice, J.K. Rowling’s Tales of Beedle the Bard (2007/2008 and Ransom Riggs’ Tales of the Peculiar (2016, in order to define mise en abyme fairy tale adaptations, as well as to discuss their cultural significance and function.

  16. Into the Twenty-First Century: Harmonizing energy policy, environment, and sustainable economic growth. Proceedings

    International Nuclear Information System (INIS)

    1995-01-01

    Economic trade liberalization and the restructuring of the energy industries to promote competition, two trends well underway, have not eliminated the need for thoughtful policy action, although they have significantly transformed the policymaking environment. New policy initiatives must be compatible with the growing competition within energy industries. And while governments are beginning to remove themselves from the natural gas and electricity markets, their policy choices for organizing these industries will shape energy balances and prices in these and other energy markets. The 18th Annual International Conference of the IAEE addresses these and other major policy issues and how energy industries can operate successfully in an era of acute economic, political, and scientific uncertainty. An overarching objective has been to provide the interface between new frontiers in economic and energy analysis and the application of these techniques toward further understanding of policy and industry options. The papers included in this Proceedings volume have not been peer reviewed but were selected by the conference program chairman and committee on the basis of their contribution to the overall conference themes. The conference program committee (see page iii) organized a number of the key sessions on a wide range of important issues. David L. Williams, Jr. was particularly effective in supporting the committee in organizing the program and publishing this volume

  17. EASCON '88; Proceedings of the Twenty-first Annual Electronics and Aerospace Conference, Arlington, VA, Nov. 9-11, 1988

    Science.gov (United States)

    The capabilities of present and future space and terrestrial communication systems are examined in reviews and reports. Topics addressed include competition between space and terrestrial technologies, remote sensing, carrier services in public switched telephone networks, surveillance and warning systems, telescience and telerobotics, integrated networks and systems, and military communication systems. Consideration is given to navigation and geolocation services; high-definition TV broadcasting; technical, economic, marketing, and strategic aspects of VSATs; future technology drivers; and SDI technologies.

  18. New electricity 21. Designing a sustainable electric system for the twenty-first century

    International Nuclear Information System (INIS)

    1996-01-01

    The five main sessions of the conference are opportunities to increase electricity use for sustainable development; electric system expansion and integration to meet growing competition; power producers and global climate change issues; technology for supplying electricity in developing and transitional economies; power industry structure, regulatory policies and technological innovation. All contributions have been indexed and abstracted for the INIS and Energy database. (R.P.)

  19. Assessing twenty-first century skills through a teacher created video game for high school biology students

    Science.gov (United States)

    Annetta, Leonard A.; Cheng, Meng-Tzu; Holmes, Shawn

    2010-07-01

    As twenty-first century skills become a greater focus in K-12 education, an infusion of technology that meets the needs of today's students is paramount. This study looks at the design and creation of a Multiplayer Educational Gaming Application (MEGA) for high school biology students. The quasi-experimental, qualitative design assessed the twenty-first century skills of digital age literacy, inventive thinking, high productivity, and effective communication techniques of the students exposed to a MEGA. Three factors, as they pertained to these skills, emerged from classroom observations. Interaction with the teacher, discussion with peers, and engagement/time-on-task while playing the MEGA suggested that students playing an educational video game exhibited all of the projected twenty-first century skills while being engrossed in the embedded science content.

  20. Proceedings: Twenty years of energy policy: Looking toward the twenty-first century

    International Nuclear Information System (INIS)

    1992-01-01

    In 1973, immediately following the Arab Oil Embargo, the Energy Resources Center, University of Illinois at Chicago initiated an innovative annual public service program called the Illinois Energy Conference. The objective was to provide a public forum each year to address an energy or environmental issue critical to the state, region and nation. Twenty years have passed since that inaugural program, and during that period we have covered a broad spectrum of issues including energy conservation nuclear power, Illinois coal, energy policy options, natural gas, alternative fuels, new energy technologies, utility deregulation and the National Energy Strategy

  1. Proceedings: Twenty years of energy policy: Looking toward the twenty-first century

    Energy Technology Data Exchange (ETDEWEB)

    1992-12-31

    In 1973, immediately following the Arab Oil Embargo, the Energy Resources Center, University of Illinois at Chicago initiated an innovative annual public service program called the Illinois Energy Conference. The objective was to provide a public forum each year to address an energy or environmental issue critical to the state, region and nation. Twenty years have passed since that inaugural program, and during that period we have covered a broad spectrum of issues including energy conservation nuclear power, Illinois coal, energy policy options, natural gas, alternative fuels, new energy technologies, utility deregulation and the National Energy Strategy.

  2. 76 FR 13799 - Implementing the Provisions of the Communications Act of 1934, as Enacted by the Twenty-First...

    Science.gov (United States)

    2011-03-14

    ... computing component (``CPU''), several kinds of memory, one or more network interfaces (cellular, IEEE 802... to share information necessarily implies a two-way service, not a broadcast- style webinar video...

  3. A Dialogue Worth Having: Vocational Competence, Career Identity and a Learning Environment for Twenty-First Century Success at Work

    NARCIS (Netherlands)

    Meijers, Frans; Lengelle, Reinekke; Winters, Annemie; Kuijpers, Marinka

    2018-01-01

    The cultivation of intrinsic motivation is key in the twenty first century, but most students in Dutch vocational education lack this quality. To foster intrinsic motivation, a strong career-learning environment is needed that enables students to develop career competencies and a career identity.

  4. Greenland Surface Mass Balance as Simulated by the Community Earth System Model. Part II: Twenty-First-Century Changes

    NARCIS (Netherlands)

    Vizcaino, M.; Lipscomb, W.H.; Sacks, W.J.; van den Broeke, M.R.

    2014-01-01

    This study presents the first twenty-first-century projections of surface mass balance (SMB) changes for the Greenland Ice Sheet (GIS) with the Community Earth System Model (CESM), which includes a new ice sheet component. For glaciated surfaces, CESM includes a sophisticated calculation of energy

  5. Twenty-First Century Instructional Classroom Practices and Reading Motivation: Probing the Effectiveness of Interventional Reading Programs

    Science.gov (United States)

    Boulhrir, Taoufik

    2017-01-01

    Twenty-first century education has undoubtedly witnessed changes of the definition of literacy to cope with the economic, social, and intellectual trends. Technological advances, which include skills of communication, creativity, critical thinking, and collaboration have become key in education, especially when dealing with literacy and reading…

  6. Science Teacher Education in the Twenty-First Century: a Pedagogical Framework for Technology-Integrated Social Constructivism

    Science.gov (United States)

    Barak, Miri

    2017-04-01

    Changes in our global world have shifted the skill demands from acquisition of structured knowledge to mastery of skills, often referred to as twenty-first century competencies. Given these changes, a sequential explanatory mixed methods study was undertaken to (a) examine predominant instructional methods and technologies used by teacher educators, (b) identify attributes for learning and teaching in the twenty-first century, and (c) develop a pedagogical framework for promoting meaningful usage of advanced technologies. Quantitative and qualitative data were collected via an online survey, personal interviews, and written reflections with science teacher educators and student teachers. Findings indicated that teacher educators do not provide sufficient models for the promotion of reform-based practice via web 2.0 environments, such as Wikis, blogs, social networks, or other cloud technologies. Findings also indicated four attributes for teaching and learning in the twenty-first century: (a) adapting to frequent changes and uncertain situations, (b) collaborating and communicating in decentralized environments, (c) generating data and managing information, and (d) releasing control by encouraging exploration. Guided by social constructivist paradigms and twenty-first century teaching attributes, this study suggests a pedagogical framework for fostering meaningful usage of advanced technologies in science teacher education courses.

  7. Essential Soft Skills for Success in the Twenty-First Century Workforce as Perceived by Business Educators

    Science.gov (United States)

    Mitchell, Geana W.; Skinner, Leane B.; White, Bonnie J.

    2010-01-01

    Background: Soft skills describe career attributes that individuals should possess, such as team skills, communication skills, ethics, time-management skills, and an appreciation for diversity. In the twenty-first century workforce, soft skills are important in every business sector. However, employers in business continuously report that new…

  8. Predicting climate change impacts on native and invasive tree species using radial growth and twenty-first century climate scenarios

    NARCIS (Netherlands)

    González-Muñoz, N.; Linares, J.C.; Castro-Díez, P.; Sass-Klaassen, U.G.W.

    2014-01-01

    The climatic conditions predicted for the twenty-first century may aggravate the extent and impacts of plant invasions, by favouring those invaders more adapted to altered conditions or by hampering the native flora. We aim to predict the fate of native and invasive tree species in the oak forests

  9. Rethinking Teaching and Learning Pedagogy for Education in the Twenty-First Century: Blended Learning in Music Education

    Science.gov (United States)

    Crawford, Renée

    2017-01-01

    In an increasingly technologically driven world, there is proliferate discussion among education and government authorities about the necessity to rethink education in the twenty-first century. The evolution of technology and its pervasive influence on the needs and requirements of society is central to this mindset. Innovations in online…

  10. Transformative Pedagogy, Leadership and School Organisation for the Twenty-First-Century Knowledge-Based Economy: The Case of Singapore

    Science.gov (United States)

    Dimmock, Clive; Goh, Jonathan W. P.

    2011-01-01

    Singapore has a high performing school system; its students top international tests in maths and science. Yet while the Singapore government cherishes its world class "brand", it realises that in a globally competitive world, its schools need to prepare students for the twenty-first-century knowledge-based economy (KBE). Accordingly,…

  11. Index to the Twenty-first Semiannual Report of the Commission to the Congress. July 1956 - December 1956

    Energy Technology Data Exchange (ETDEWEB)

    Strauss, Lewis L.

    1957-01-31

    This volume contains a name and subject indext for the twenty-first semiannual report of the United States Atomic Energy Commission to Congress. The full semiannual report covers the major unclassified activities of the Commission from July 1956 through December 1956.

  12. Nonlinear Pedagogy and Its Role in Encouraging Twenty-First Century Competencies through Physical Education: A Singapore Experience

    Science.gov (United States)

    Lee, Miriam Chang Yi; Chow, Jia Yi; Button, Chris; Tan, Clara Wee Keat

    2017-01-01

    Nonlinear Pedagogy is an exploratory approach to teaching and learning Physical Education that can be potentially effective to help children acquire relevant twenty-first century competencies. Underpinned by Ecological Dynamics, the focus of Nonlinear Pedagogy is on the learner and includes the provision of less prescriptive instructions and…

  13. Thinking Like Twenty-First Century Learners: An Exploration of Blog Use in a Skills-Based Counselor Education Course

    Science.gov (United States)

    Buono, Lisa L.

    2011-01-01

    Twenty-first century learners and millennial generation students have integrated technology into their personal lives; there is a growing expectation for technology to be integrated into their classroom experiences as well. Incorporating technology, including the use of blogs, into teaching and learning is receiving attention in the literature.…

  14. A Commentary on "Updating the Duplex Design for Test-Based Accountability in the Twenty-First Century"

    Science.gov (United States)

    Brandt, Steffen

    2010-01-01

    This article presents the author's commentary on "Updating the Duplex Design for Test-Based Accountability in the Twenty-First Century," in which Isaac I. Bejar and E. Aurora Graf propose the application of a test design--the duplex design (which was proposed in 1988 by Bock and Mislevy) for application in current accountability assessments.…

  15. From School to Cafe and Back Again: Responding to the Learning Demands of the Twenty-First Century

    Science.gov (United States)

    McWilliam, Erica

    2011-01-01

    This paper traces the historical origins of formal and informal lifelong learning to argue that optimal twenty-first-century education can and should draw on the traditions of both the school and the coffee house or cafe. For some time now, educational policy documents and glossy school brochures have come wrapped in the mantle of lifelong…

  16. IEEE Prize for Lucio Rossi

    CERN Multimedia

    IEEE Council on Superconductivity

    2007-01-01

    Lucio Rossi receives his prize from John Spargo, Chairman of the IEEE Council on Superconductivity (left), and Martin Nisenoff, Chairman of the Council on Superconductivity's Awards Committee (right).

  17. Climate Change driven evolution of hazards to Europe's transport infrastructure throughout the twenty-first century

    Science.gov (United States)

    Matulla, Christoph; Hollósi, Brigitta; Andre, Konrad; Gringinger, Julia; Chimani, Barbara; Namyslo, Joachim; Fuchs, Tobias; Auerbach, Markus; Herrmann, Carina; Sladek, Brigitte; Berghold, Heimo; Gschier, Roland; Eichinger-Vill, Eva

    2017-06-01

    Road authorities, freight, and logistic industries face a multitude of challenges in a world changing at an ever growing pace. While globalization, changes in technology, demography, and traffic, for instance, have received much attention over the bygone decades, climate change has not been treated with equal care until recently. However, since it has been recognized that climate change jeopardizes many business areas in transport, freight, and logistics, research programs investigating future threats have been initiated. One of these programs is the Conference of European Directors of Roads' (CEDR) Transnational Research Programme (TRP), which emerged about a decade ago from a cooperation between European National Road Authorities and the EU. This paper presents findings of a CEDR project called CliPDaR, which has been designed to answer questions from road authorities concerning climate-driven future threats to transport infrastructure. Pertaining results are based on two potential future socio-economic pathways of mankind (one strongly economically oriented "A2" and one more balanced scenario "A1B"), which are used to drive global climate models (GCMs) producing global and continental scale climate change projections. In order to achieve climate change projections, which are valid on regional scales, GCM projections are downscaled by regional climate models. Results shown here originate from research questions raised by European Road Authorities. They refer to future occurrence frequencies of severely cold winter seasons in Fennoscandia, to particularly hot summer seasons in the Iberian Peninsula and to changes in extreme weather phenomena triggering landslides and rutting in Central Europe. Future occurrence frequencies of extreme winter and summer conditions are investigated by empirical orthogonal function analyses of GCM projections driven with by A2 and A1B pathways. The analysis of future weather phenomena triggering landslides and rutting events requires

  18. Proceedings of the twenty-first symposium of atomic energy research on WWER physics and reactor safety

    International Nuclear Information System (INIS)

    Vidovszky, I.

    2011-10-01

    The present volume contains 61 papers, presented on the twenty-first symposium of atomic energy research, held in Dresden, Germany, 19-23 September 2011. The papers are presented in their original form, i. e. no corrections or modifications were carried out. The content of this volume is divided into thematic groups: Improvement, extension and validation of parameterized few-group libraries for WWER-440 and WWER-1000.

  19. The Return of "Patrimonial Capitalism": A Review of Thomas Piketty's Capital in the Twenty-First Century

    OpenAIRE

    Branko Milanovic

    2014-01-01

    Capital in the Twenty-First Century by Thomas Piketty provides a unified theory of the functioning of the capitalist economy by linking theories of economic growth and functional and personal income distributions. It argues, based on the long-run historical data series, that the forces of economic divergence (including rising income inequality) tend to dominate in capitalism. It regards the twentieth century as an exception to this rule and proposes policies that would make capitalism sustain...

  20. A Vision for ARES in the Twenty-First Century: The Virtual Community of Real Estate Thought Leaders

    OpenAIRE

    Stephen E. Roulac

    1996-01-01

    In the twenty-first century the American Real Estate Society (ARES) is a virtual community of real estate thought leaders, electronically interconnected and linked through the International Real Estate Society to counterpart organizations on all major continents as well as numerous country-specific societies. ARES growth is attributable to its emphasis on rigorous applied microeconomic decisionmaking and an inclusive, open style. The initiatives of the Strategic Planning Task Force, whose rep...

  1. Analysis of the projected regional sea-ice changes in the Southern Ocean during the twenty-first century

    Energy Technology Data Exchange (ETDEWEB)

    Lefebvre, W.; Goosse, H. [Universite Catholique de Louvain, Institut d' Astronomie et de Geophysique Georges Lemaitre, Louvain-la-Neuve (Belgium)

    2008-01-15

    Using the set of simulations performed with atmosphere-ocean general circulation models (AOGCMs) for the Fourth Assessment Report of the Intergovernmental Panel on Climate Change (IPCC AR4), the projected regional distribution of sea ice for the twenty-first century has been investigated. Averaged over all those model simulations, the current climate is reasonably well reproduced. However, this averaging procedure hides the errors from individual models. Over the twentieth century, the multimodel average simulates a larger sea-ice concentration decrease around the Antarctic Peninsula compared to other regions, which is in qualitative agreement with observations. This is likely related to the positive trend in the Southern Annular Mode (SAM) index over the twentieth century, in both observations and in the multimodel average. Despite the simulated positive future trend in SAM, such a regional feature around the Antarctic Peninsula is absent in the projected sea-ice change for the end of the twenty-first century. The maximum decrease is indeed located over the central Weddell Sea and the Amundsen-Bellingshausen Seas. In most models, changes in the oceanic currents could play a role in the regional distribution of the sea ice, especially in the Ross Sea, where stronger southward currents could be responsible for a smaller sea-ice decrease during the twenty-first century. Finally, changes in the mixed layer depth can be found in some models, inducing locally strong changes in the sea-ice concentration. (orig.)

  2. Access to IEEE Electronic Library

    CERN Multimedia

    2007-01-01

    From 2007, the CERN Library now offers readers online access to the complete IEEE Electronic Library (Institute of Electrical and Electronics Engineers). This new licence gives unlimited online access to all IEEE and IET (previously IEE) journals and proceedings as well as all current IEEE standards and selected archived ones. Some of the titles offer volumes back to 1913. This service currently represents more than 1,400,000 full-text articles! This leading engineering information resource replaces the previous service, a sub-product of the IEEE database called 'IEEE Enterprise', which offered online access to the complete collection of IEEE journals and proceedings, but with limited features. The service had become so popular that the CERN Working Group for Acquisitions recommended that the Library subscribe to the complete IEEE Electronic Library for 2007. Usage statistics for recent months showed there was a demand for the service from a large community of CERN users and we were aware that many users h...

  3. The renaissance of word-of-mouth marketing: A new standard in twenty-first century marketing management?!

    OpenAIRE

    Meiners, Norbert H.; Schwarting, Ulf; Seeberger, Bernd

    2010-01-01

    In this paper the importance of word of mouth for marketing management in the twenty-first century will be discussed. After a short introduction, there will be a focus on the demarcations and problems of traditional marketing. Then, in the third section, word of mouth (WOM) and word-of-mouth marketing (WOMM) as a 'new' standard in modern marketing are described. The fourth section broaches the importance of word of mouth and word-of-mouth marketing from the point of view of business and consu...

  4. The restructuring of the Argentina Navy between the end of the twentieth century and early twenty-first.

    Directory of Open Access Journals (Sweden)

    Germán Soprano

    2017-07-01

    Full Text Available The definition of a policy of national defense and internal security in democracy, created conditions to advance in the process of restructuring of the Argentina Navy, introducing changes in its organization and functions. In this article we will focus this process analyzing, on the one hand, the relationship between the definitions of defense policy and the configuration of naval military instrument between the end of the twentieth century and early twenty-first century; and, on the other hand, understanding their development in the case of two components of the force: the marine corps and the division of maritime patrol.

  5. Public Heath in Colonial and Post-Colonial Ghana: Lesson-Drawing for The Twenty-First Century

    Directory of Open Access Journals (Sweden)

    Adu-Gyamfi, Samuel

    2017-06-01

    Full Text Available Public health in twenty-first century Ghana is mired with several issues ranging from the inadequacy of public health facilities, improper settlement planning, insanitary conditions, and the inadequacy of laws and their implementation. This situation compared to the colonial era is a direct contradiction. Development in the pre-colonial era to the colonial era sought to make the prevention of diseases a priority in the colonial administration. This was begun with the establishment of the health branch in 1909 as a response to the bubonic plague that was fast spreading in the colony. From here public health policies and strategies were enacted to help the diseases prevention cause. Various public health boards, the medical research institute or the laboratory branch, the waste management department, the use of preventive medicine and maintenance of good settlement planning and sanitation were public health measures in the colonial era. This research seeks to analyse the public health system in the colonial era so as to draw basic lessons for twenty-first century Ghana. Archival data and other secondary sources are reviewed and analysed to help draw these lessons. Richard Rose’s lesson-drawing approach was used to draw the lessons.

  6. A needs assessment for DOE's packaging and transportation activities - a look into the twenty-first century

    International Nuclear Information System (INIS)

    Pope, R.; Turi, G.; Brancato, R.; Blalock, L.; Merrill, O.

    1995-01-01

    The U.S. Department of Energy (DOE) has performed a department-wide scoping of its packaging and transportation needs and has arrived at a projection of these needs for well into the twenty-first century. The assessment, known as the Transportation Needs Assessment (TNA) was initiated during August 1994 and completed in December 1994. The TNA will allow DOE to better prepare for changes in its transportation requirements in the future. The TNA focused on projected, quantified shipping needs based on forecasts of inventories of materials which will ultimately require transport by the DOE for storage, treatment and/or disposal. In addition, experts provided input on the growing needs throughout DOE resulting from changes in regulations, in DOE's mission, and in the sociopolitical structure of the United States. Through the assessment, DOE's transportation needs have been identified for a time period extending from the present through the first three decades of the twenty-first century. The needs assessment was accomplished in three phases: (1) defining current packaging, shipping, resource utilization, and methods of managing packaging and transportation activities; (2) establishing the inventory of materials which DOE will need to transport on into the next century and scenarios which project when, from where, and to where these materials will need to be transported; and (3) developing requirements and projected changes for DOE to accomplish the necessary transport safely and economically

  7. Preparing Teacher-Students for Twenty-First-Century Learning Practices (PREP 21): A Framework for Enhancing Collaborative Problem-Solving and Strategic Learning Skills

    Science.gov (United States)

    Häkkinen, Päivi; Järvelä, Sanna; Mäkitalo-Siegl, Kati; Ahonen, Arto; Näykki, Piia; Valtonen, Teemu

    2017-01-01

    With regard to the growing interest in developing teacher education to match the twenty-first-century skills, while many assumptions have been made, there has been less theoretical elaboration and empirical research on this topic. The aim of this article is to present our pedagogical framework for the twenty-first-century learning practices in…

  8. BNAIC 2006 : Benelux conference on artificial intelligence : proceedings of the twenty-first Benelux conference on artificial intelligence, Eindhoven, October 29-30, 2009

    NARCIS (Netherlands)

    Calders, T.G.K.; Tuyls, K.P.; Pechenizkiy, M.

    2009-01-01

    Preface: Technology on October 29 and 30, 2009, under the auspices of the Belgium-Netherlands Association for Artificial Intelligence (BNVKI) and the Dutch Research School for Information and Knowledge Systems (SIKS). The term "Artificial Intelligence" dates back to 1956 when John McCarthy defined

  9. Twenty-First Century Instructional Classroom Practices and Reading Motivation: Probing the Effectiveness of Interventional Reading Programs

    Directory of Open Access Journals (Sweden)

    Taoufik Boulhrir

    2017-07-01

    Full Text Available Twenty-first century education has undoubtedly witnessed changes of the definition of literacy to cope with the economic, social, and intellectual trends. Technological advances, which include skills of communication, creativity, critical thinking, and collaboration have become key in education, especially when dealing with literacy and reading motivation. As motivation hinges around two major theoretical approaches, intrinsic and extrinsic, numerous studies argue for the first to be more sustainable in enhancing reading motivation. Accordingly, many research-based interventional programs have emerged since the late nineties with increasing popularity to offer answers to the dwindling rates in reading among youth. This article discusses traits of 21st century education in light of trends and challenges as it probes the effectiveness of some interventional programs that are meant, and argued for, to enhance literacy skills and reading motivation.

  10. Us, them, and others: reflections on Canadian multiculturalism and national identity at the turn of the twenty-first century.

    Science.gov (United States)

    Winter, Elke

    2014-05-01

    The John Porter Lecture at the annual meeting of the Canadian Sociological Association in Victoria 2013 draws upon my book Us, Them, and Others: Pluralism and National Identity in Diverse Societies. Incorporating the findings from an analysis of Canadian English-language newspaper discourses during the 1990s into a theoretical framework inspired by Weberian sociology, the book argues that pluralism is best understood as a dynamic set of triangular relations where the compromise between unequal groups--"us" and "others"--is rendered meaningful through the confrontation with real or imagined outsiders ("them"). The lecture summarizes the theoretical contribution and explains how multiculturalism became consolidated in dominant Canadian discourses in the late 1990s. The lecture then discusses changes to Canadian multicultural identity at the beginning of the twenty-first century.

  11. The horror of stigma: psychosis and mental health care environments in twenty-first-century horror film (part II).

    Science.gov (United States)

    Goodwin, John

    2014-10-01

    This paper highlights the specific manner in which twenty-first-century horror films stigmatize psychosis and mental health care environments (MHCEs) A search on various film forums using the terms "mental/psychiatric patient," "psychosis/psychoses," and "mental/psychiatric hospital" (limited from 2000 to 2012) revealed 55 films. A literature review revealed criteria for a checklist. Subsequent to viewings, salient recurring criteria were added to the checklist. Films were systematically analyzed under these criteria. Homicidal maniacs are the most common stereotypes. Misinformation is often communicated. Familiar horror tropes are used to stigmatize MHCEs. Practitioners should be aware of the specific manner in which clients are being stigmatized by the media. This paper highlights specific ways in which psychosis and MHCEs are stigmatized, and encourages practitioners to challenge these depictions. © 2013 Wiley Periodicals, Inc.

  12. Towards a Rational Kingdom in Africa: Knowledge, Critical Rationality and Development in a Twenty-First Century African Cultural Context

    Directory of Open Access Journals (Sweden)

    Lawrence Ogbo Ugwuanyi

    2018-03-01

    Full Text Available This paper seeks to locate the kind of knowledge that is relevant for African development in the twenty-first century African cultural context and to propose the paradigm for achieving such knowledge. To do this, it advances the view that the concept of twenty-first century in an African context must be located with the colonial and post-colonial challenges of the African world and applied to serve the African demand. Anchored on this position, the paper outlines and critiques the wrong assumption on which modern state project was anchored in post-colonial Africa and its development dividend to suggest that this is an outcome of a wrong knowledge design that is foundational to the state project and which the project did not address. It proposes a shift in the knowledge paradigm in Africa and suggests critical self-consciousness as a more desirable knowledge design for Africa. It applies the term ‘rational kingdom’ (defined as a community of reason marked by critical conceptual self-awareness driven by innovation and constructivism to suggest this paradigm. ‘Innovation’ is meant as the application of reason with an enlarged capacity to anticipate and address problems with fresh options and ‘constructivism’ is meant as the disposition to sustain innovation by advancing an alternative but more reliable worldview that can meet the exigencies of modernity in an African cultural context. The paper then proceeds to outline the nature of the rational kingdom and its anticipated gains and outcomes. It applies the method of inductive reasoning to advance its position. To do this it invokes selected but crucial areas of African life to locate how the developmental demands of these aspects of life suggest a critical turn in African rationality.

  13. Future projections of synoptic weather types over the Arabian Peninsula during the twenty-first century using an ensemble of CMIP5 models

    KAUST Repository

    El Kenawy, Ahmed M.; McCabe, Matthew

    2016-01-01

    An assessment of future change in synoptic conditions over the Arabian Peninsula throughout the twenty-first century was performed using 20 climate models from the Coupled Model Intercomparison Project Phase 5 (CMIP5) database. We employed the mean

  14. Projected Changes on the Global Surface Wave Drift Climate towards the END of the Twenty-First Century

    Science.gov (United States)

    Carrasco, Ana; Semedo, Alvaro; Behrens, Arno; Weisse, Ralf; Breivik, Øyvind; Saetra, Øyvind; Håkon Christensen, Kai

    2016-04-01

    The global wave-induced current (the Stokes Drift - SD) is an important feature of the ocean surface, with mean values close to 10 cm/s along the extra-tropical storm tracks in both hemispheres. Besides the horizontal displacement of large volumes of water the SD also plays an important role in the ocean mix-layer turbulence structure, particularly in stormy or high wind speed areas. The role of the wave-induced currents in the ocean mix-layer and in the sea surface temperature (SST) is currently a hot topic of air-sea interaction research, from forecast to climate ranges. The SD is mostly driven by wind sea waves and highly sensitive to changes in the overlaying wind speed and direction. The impact of climate change in the global wave-induced current climate will be presented. The wave model WAM has been forced by the global climate model (GCM) ECHAM5 wind speed (at 10 m height) and ice, for present-day and potential future climate conditions towards the end of the end of the twenty-first century, represented by the Intergovernmental Panel for Climate Change (IPCC) CMIP3 (Coupled Model Inter-comparison Project phase 3) A1B greenhouse gas emission scenario (usually referred to as a ''medium-high emissions'' scenario). Several wave parameters were stored as output in the WAM model simulations, including the wave spectra. The 6 hourly and 0.5°×0.5°, temporal and space resolution, wave spectra were used to compute the SD global climate of two 32-yr periods, representative of the end of the twentieth (1959-1990) and twenty-first (1969-2100) centuries. Comparisons of the present climate run with the ECMWF (European Centre for Medium-Range Weather Forecasts) ERA-40 reanalysis are used to assess the capability of the WAM-ECHAM5 runs to produce realistic SD results. This study is part of the WRCP-JCOMM COWCLIP (Coordinated Ocean Wave Climate Project) effort.

  15. Evolution and modulation of tropical heating from the last glacial maximum through the twenty-first century

    Energy Technology Data Exchange (ETDEWEB)

    Hoyos, Carlos D.; Webster, Peter J. [Georgia Institute of Technology, School of Earth and Atmospheric Sciences, Atlanta, GA (United States)

    2012-04-15

    Twentieth century observations show that during the last 50 years the sea-surface temperature (SST) of the tropical oceans has increased by {proportional_to}0.5 C and the area of SST >26.5 and 28 C (arbitrarily referred to as the oceanic warm pool: OWP) by 15 and 50% respectively in association with an increase in green house gas concentrations, with non-understood natural variability or a combination of both. Based on CMIP3 projections the OWP is projected to double during twenty-first century in a moderate CO{sub 2} forcing scenario (IPCC A1B scenario). However, during the observational period the area of positive atmospheric heating (referred to as the dynamic warm pool, DWP), has remained constant. The threshold SST (T{sub H}), which demarks the region of net heating and cooling, has increased from 26.6 C in the 1950s to 27.1 C in the last decade and it is projected to increase to {proportional_to}28.5 C by 2100. Based on climate model simulations, the area of the DWP is projected to remain constant during the twenty-first century. Analysis of the paleoclimate model intercomparison project (PMIP I and II) simulations for the Last Glacial maximum and the Mid-Holocene periods show a very similar behaviour, with a larger OWP in periods of elevated tropical SST, and an almost constant DWP associated with a varying T{sub H}. The constancy of the DWP area, despite shifts in the background SST, is shown to be the result of a near exact matching between increases in the integrated convective heating within the DWP and the integrated radiative cooling outside the DWP as SST changes. Although the area of the DWP remains constant, the total tropical atmospheric heating is a strong function of the SST. For example the net heating has increased by about 10% from 1950 to 2000 and it is projected to increase by a further 20% by 2100. Such changes must be compensated by a more vigorous atmospheric circulation, with growth in convective heating within the warm pool, and an

  16. Researching the roots of IEEE Region 8

    NARCIS (Netherlands)

    Bastiaans, M.J.

    2013-01-01

    This paper describes the preliminary steps towards the foundation and the early history of IRE Region 9 / IEEE Region 8. The information has been gathered mainly from the archives of the IEEE Benelux Section.

  17. Building Interdisciplinary Leadership Skills among Health Practitioners in the Twenty-First Century: An Innovative Training Model.

    Science.gov (United States)

    Negandhi, Preeti; Negandhi, Himanshu; Tiwari, Ritika; Sharma, Kavya; Zodpey, Sanjay P; Quazi, Zahiruddin; Gaidhane, Abhay; Jayalakshmi N; Gijare, Meenakshi; Yeravdekar, Rajiv

    2015-01-01

    Transformational learning is the focus of twenty-first century global educational reforms. In India, there is a need to amalgamate the skills and knowledge of medical, nursing, and public health practitioners and to develop robust leadership competencies among them. This initiative proposed to identify interdisciplinary leadership competencies among Indian health practitioners and to develop a training program for interdisciplinary leadership skills through an Innovation Collaborative. Medical, nursing, and public health institutions partnered in this endeavor. An exhaustive literature search was undertaken to identify leadership competencies in these three professions. Published evidence was utilized in searching for the need for interdisciplinary training of health practitioners, including current scenarios in interprofessional health education and the key competencies required. The interdisciplinary leadership competencies identified were self-awareness, vision, self-regulation, motivation, decisiveness, integrity, interpersonal communication skills, strategic planning, team building, innovation, and being an effective change agent. Subsequently, a training program was developed, and three training sessions were piloted with 66 participants. Each cohort comprised a mix of participants from different disciplines. The pilot training guided the development of a training model for building interdisciplinary leadership skills and organizing interdisciplinary leadership workshops. The need for interdisciplinary leadership competencies is recognized. The long-term objective of the training model is integration into the regular medical, nursing, and public health curricula, with the aim of developing interdisciplinary leadership skills among them. Although challenging, formal incorporation of leadership skills into health professional education is possible within the interdisciplinary classroom setting using principles of transformative learning.

  18. Shelter and indoor air in the twenty-first century--radon, smoking, and lung cancer risks

    International Nuclear Information System (INIS)

    Fabrikant, J.I.

    1990-01-01

    Recognition that radon and its daughter products may accumulate to high levels in homes and in the workplace has led to concern about the potential lung cancer risk resulting from indoor domestic exposure. While such risks can be estimated with current dosimetric and epidemiological models for excess relative risks, it must be recognized that these models are based on data from occupational exposure and from underground miners' mortality experience. Several assumptions are required to apply risk estimates from an occupational setting to the indoor domestic environment. Analyses of the relevant data do not lead to a conclusive description of the interaction between radon daughters and cigarette smoking for the induction of lung cancer. The evidence compels the conclusion that indoor radon daughter exposure in homes represents a potential life-threatening public health hazard, particularly in males, and in cigarette smokers. Resolution of complex societal interactions will require public policy decisions involving the governmental, scientific, financial, and industrial sectors. These decisions impact the home, the workplace, and the marketplace, and they extend beyond the constraints of science. Risk identification, assessment, and management require scientific and engineering approaches to guide policy decisions to protect the public health. Mitigation and control procedures are only beginning to receive attention. Full acceptance for protection against what could prove to be a significant public health hazard in the twenty-first century will certainly involve policy decisions, not by scientists, but rather by men and women of government and law

  19. Watershed-scale response to climate change through the twenty-first century for selected basins across the United States

    Science.gov (United States)

    Hay, Lauren E.; Markstrom, Steven; Ward-Garrison, Christian D.

    2011-01-01

    The hydrologic response of different climate-change emission scenarios for the twenty-first century were evaluated in 14 basins from different hydroclimatic regions across the United States using the Precipitation-Runoff Modeling System (PRMS), a process-based, distributed-parameter watershed model. This study involves four major steps: 1) setup and calibration of the PRMS model in 14 basins across the United States by local U.S. Geological Survey personnel; 2) statistical downscaling of the World Climate Research Programme’s Coupled Model Intercomparison Project phase 3 climate-change emission scenarios to create PRMS input files that reflect these emission scenarios; 3) run PRMS for the climate-change emission scenarios for the 14 basins; and 4) evaluation of the PRMS output.This paper presents an overview of this project, details of the methodology, results from the 14 basin simulations, and interpretation of these results. A key finding is that the hydrological response of the different geographical regions of the United States to potential climate change may be very different, depending on the dominant physical processes of that particular region. Also considered is the tremendous amount of uncertainty present in the climate emission scenarios and how this uncertainty propagates through the hydrologic simulations. This paper concludes with a discussion of the lessons learned and potential for future work.

  20. The era of the wandering mind? Twenty-first century research on self-generated mental activity

    Directory of Open Access Journals (Sweden)

    Felicity eCallard

    2013-12-01

    Full Text Available The first decade of the twenty-first century was characterized by renewed scientific interest in self-generated mental activity (activity largely generated by the individual, rather than in response to experimenters’ instructions or specific external sensory inputs. To understand this renewal of interest, we interrogated the peer-reviewed literature from 2003–2012 (i to explore recent changes in use of terms for self-generated mental activity; (ii to investigate changes in the topics on which mind wandering research, specifically, focuses; and (iii to visualize co-citation communities amongst researchers working on self-generated mental activity. Our analyses demonstrated that there has been a dramatic increase in the term mind wandering, and a significant crossing-over of psychological investigations of mind wandering, specifically, into cognitive neuroscience. If this is, indeed, the ‘era of the wandering mind’, our paper calls for more explicit reflection to be given by mind wandering researchers to the terms they use, the topics and brain regions they focused on, and the research literatures that they implicitly foreground or ignore as not relevant.

  1. IEEE Prize for Lucio Rossi

    CERN Multimedia

    2007-01-01

    Lucio Rossi receives his prize from John Spargo, Chairman of the IEEE Council on Superconductivity (left), and Martin Nisenoff, Chairman of the Council on Superconductivity’s Awards Committee (right). (Photo: IEEE Council on Superconductivity)With the magnets installed in the tunnel and work on the interconnections almost completed, Lucio Rossi has reaped the rewards of fifteen years of work. And yet, when the physicist from Milan arrived to take charge of the group responsible for the superconducting magnets in 2001, success seemed far from assured. Endowed with surprising levels of energy, Lucio Rossi, together with his team, ensured that production of these highly complex magnets got underway. Today, that achievement earns them the recognition not only of CERN but also of the international superconducting community. It is for this achievement that Lucio Rossi was awarded the prize by the IEEE’s (Institute of Electrical an...

  2. Growth of Global Publishing Output of Health Economics in the Twenty-First Century: A Bibliographic Insight.

    Science.gov (United States)

    Jakovljevic, Mihajlo Michael; Pejcic, Ana V

    2017-01-01

    Strong growth of interdisciplinary sciences might find exceptional example in academic health economics. We decided to observe the quantitative output in this science since the beginning of the twenty-first century. Electronic search of the published literature was conducted in four different databases: one medical database-MEDLINE/PubMed, two general databases-Scopus/Elsevier and Web of Science (WoS), and one specialized health economic database-NHS Economic Evaluation Database (EED). The applied combination of key words was carefully chosen to cover the most commonly used terms in titles of publications dealing with conceptual areas of health economics. All bibliographic units were taken into account. Within the time horizon from January 1, 2000 to December 31, 2016, without language or limitations on bibliographic unit types, we identified an output ranging approximately from 60,345 to 88,246 records with applied search strategy in MEDLINE/PubMed, Scopus/Elsevier, and WoS. In NHS EED, we detected 14,761 records of economic evaluations of health interventions during the period in which database was maintained and regularly updated. With slightly more than one-third of the identified records, USA clearly dominates in this field. United Kingdom takes a strong second place with about 12% of identified records. Consistently, USA and UK universities are the most frequent among the top 15 affiliations/organizations of the authors of the identified records. Authors from Harvard University contributed to the largest number of the identified records. There is a clear evidence of both the upward stream of blossoming in health economics publications and its acceleration. Based on this bibliographic data set, it is difficult to distinguish the actual impact growth of this output provided dominantly by academia with modest contribution by pharmaceutical/medicinal device industry and diverse national government-based agencies. Further insight into the citation track record of

  3. Agriculture in West Africa in the Twenty-First Century: Climate Change and Impacts Scenarios, and Potential for Adaptation

    Science.gov (United States)

    Sultan, Benjamin; Gaetani, Marco

    2016-01-01

    West Africa is known to be particularly vulnerable to climate change due to high climate variability, high reliance on rain-fed agriculture, and limited economic and institutional capacity to respond to climate variability and change. In this context, better knowledge of how climate will change in West Africa and how such changes will impact crop productivity is crucial to inform policies that may counteract the adverse effects. This review paper provides a comprehensive overview of climate change impacts on agriculture in West Africa based on the recent scientific literature. West Africa is nowadays experiencing a rapid climate change, characterized by a widespread warming, a recovery of the monsoonal precipitation, and an increase in the occurrence of climate extremes. The observed climate tendencies are also projected to continue in the twenty-first century under moderate and high emission scenarios, although large uncertainties still affect simulations of the future West African climate, especially regarding the summer precipitation. However, despite diverging future projections of the monsoonal rainfall, which is essential for rain-fed agriculture, a robust evidence of yield loss in West Africa emerges. This yield loss is mainly driven by increased mean temperature while potential wetter or drier conditions as well as elevated CO2 concentrations can modulate this effect. Potential for adaptation is illustrated for major crops in West Africa through a selection of studies based on process-based crop models to adjust cropping systems (change in varieties, sowing dates and density, irrigation, fertilizer management) to future climate. Results of the cited studies are crop and region specific and no clear conclusions can be made regarding the most effective adaptation options. Further efforts are needed to improve modeling of the monsoon system and to better quantify the uncertainty in its changes under a warmer climate, in the response of the crops to such

  4. The traditional commons of England and Wales in the twenty-first century: meeting new and old challenges

    Directory of Open Access Journals (Sweden)

    Chris Short

    2008-07-01

    Full Text Available The commons literature makes much of the changes within the traditional land use sectors of developed countries. This largely focuses on the decline of the economic function of commons that threaten their existence, the emergence of multiple use patterns, and the resilience and policy adaptation needed to continue. The situation in England and Wales is used to illustrate that commons are increasingly important to a number of ‘new’ rural functions and that the associated policy developments may hold an important message for progress towards sustainable multifunctional land management more generally. This article reviews and updates what is meant by the term common land within England and Wales, while outlining its current importance and threats. The commons literature is investigated to see if the approach is useful in revealing the current issues associated with the incorporation of new stakeholders and functions within a traditional structure. Recent changes and developments surrounding the Commons Act 2006 are assessed to see if they are likely to assist in sustaining these commons through the twenty-first century. The article argues that any new approach requires long term planning and a commitment to support local participation among commoners and others who are involved in the governance and management of these areas of land. In order for these challenges to be met there needs to be an understanding of the functions and cultural traditions of common land as well as of the changes in society associated with the decline in traditional agrarian management in developed countries. Such challenges can rarely if ever be achieved through legislation and policy developments, requiring an investment in developing locally based solutions.

  5. Graduate Study for the Twenty-First Century: How to Build an Academic Career in the Humanities

    Science.gov (United States)

    Semenza, Gregory Colon

    2005-01-01

    Many graduate students continue to be regarded as "apprentices" despite the fact that they are expected to design and teach their own classes, serve on university committees, and conference and publish regularly. "The Chronicle of Higher Education" reports that the attrition rate for American Ph.D. programs is at an all-time high, between 40% and…

  6. Traditional knowledge hiding in plain sight - twenty-first century ethnobotany of the Chácobo in Beni, Bolivia.

    Science.gov (United States)

    Paniagua Zambrana, Narel Y; Bussmann, Rainer W; Hart, Robbie E; Moya Huanca, Araceli L; Ortiz Soria, Gere; Ortiz Vaca, Milton; Ortiz Álvarez, David; Soria Morán, Jorge; Soria Morán, María; Chávez, Saúl; Chávez Moreno, Bertha; Chávez Moreno, Gualberto; Roca, Oscar; Siripi, Erlin

    2017-10-10

    The Chácobo are a Panoan speaking tribe of about 1000 members (300+ adults) in Beni, Bolivia. Originally nomadic, the Chácabo were relocated to their current main location in the 1960s. Researchers have visited the Chácabo since 1911. A first more detailed anthropological report exists from the late 1960s, and ecological-ethnobotanical studies were conducted in the 1980s and 1990s. The presented work represents a complete ethnobotanical inventory of the entire adult Chácobo population, with interviews and plant collection conducted directly by Chácobo counterparts. Based on previous reports and our preliminary studies, we hypothesized that twenty-first century Chácobo plant use centered on income generation, and that traditional plant use related to household utensils, medicine and traditional crop varieties had almost disappeared. To test this hypothesis, we started the "Chácobo Ethnobotany Project," training 10 indigenous Chácobo participants in ethnobotanical interview and plant collection techniques, in order to more fully document Chácobo knowledge and avoid the influence of foreign interviewers. Our study found 331 useful plant species in 241genera of 95 plant families, with leaves, roots and bark being the most commonly used plant parts The comprehensive documentation that these methods enabled completely nullified our initial hypothesis of knowledge loss. Traditional crop varieties are still widely grown and traditional knowledge is alive. Moreover, it is being actively recuperated in certain domains by the younger generation. Most Chácobo know, and can name, traditional utensils and tools, although only the older generation has still the skills to manufacture them. While many Chácobo still know the names and uses of medicinal species, the younger generation is however often unsure how to identify them. In this paper we illustrate the complexity of perspectives on knowledge at different ages, and the persistence of knowledge over almost a century

  7. Proceedings of IEEE Machine Learning for Signal Processing Workshop XVI

    DEFF Research Database (Denmark)

    Larsen, Jan

    These proceedings contains refereed papers presented at the sixteenth IEEE Workshop on Machine Learning for Signal Processing (MLSP'2006), held in Maynooth, Co. Kildare, Ireland, September 6-8, 2006. This is a continuation of the IEEE Workshops on Neural Networks for Signal Processing (NNSP......). The name of the Technical Committee, hence of the Workshop, was changed to Machine Learning for Signal Processing in September 2003 to better reflect the areas represented by the Technical Committee. The conference is organized by the Machine Learning for Signal Processing Technical Committee...... the same standard as the printed version and facilitates the reading and searching of the papers. The field of machine learning has matured considerably in both methodology and real-world application domains and has become particularly important for solution of problems in signal processing. As reflected...

  8. Proliferation and Nonproliferation in the Early Twenty-First Century. The Permanent Five Hold the Key to Success

    International Nuclear Information System (INIS)

    Santoro, David

    2012-01-01

    are. Its core finding is that much of the success against proliferation will be determined by the role played by the permanent members of the Security Council, the so-called Permanent Five or P-5 (China, France, Russia, the United Kingdom, and the United States). It is unclear, however, whether the Five will be able and willing to play this role adequately. The developments of the first decade of the twenty-first century have not been comforting for nonproliferation. Proliferation challenges have risen and grown more complex. In response, policy tools have been developed, but their effectiveness has suffered from divisions among the P-5 and between them and the NAM states. Half a century since Ikle's article and a decade since Roberts' review, the major powers have remained at a loss to address the threat of proliferation. Winning is still possible, but it will require more than wishful thinking. In the years ahead, the challenge will be to reconcile policy effectiveness with policy legitimacy, be it to restore compliance altogether or to prevent proliferation, counter it, detect and expose noncompliance, and manage nonproliferation failures. Meeting this challenge places the P-5 at the center-stage. Much of the success against proliferation will be determined by the role that the Five choose to play. But given current shifts in international power structures (what Joseph Nye calls 'the rise of the rest') the prospects appear uncertain.68 It is important, therefore, that further research focuses on how the P-5 role can be strengthened to address proliferation, and how this role can be better aligned with today's evolving international trends

  9. The Challenges of Teaching and Learning about Science in the Twenty-First Century: Exploring the Abilities and Constraints of Adolescent Learners

    Science.gov (United States)

    Anderman, Eric M.; Sinatra, Gale M.; Gray, DeLeon L.

    2012-01-01

    In this article, we critically examine skills that are necessary for the effective learning of science in adolescent populations. We argue that a focus on twenty-first-century skills among adolescents within the context of science instruction must be considered in light of research on cognitive and social development. We first review adolescents'…

  10. Solving the problems we face: the United States Environmental Protection Agency, sustainability, and the challenges of the twenty-first century

    Science.gov (United States)

    Addressing the problems of the twenty-first century will require new initiatives that complement traditional regulatory activities. Existing regulations, such as the Clean Air Act and Clean Water Act are important safety nets in the United States for protecting human health and t...

  11. Formatively Assessing Teamwork in Technology-Enabled Twenty-First Century Classrooms: Exploratory Findings of a Teamwork Awareness Programme in Singapore

    Science.gov (United States)

    Koh, Elizabeth; Hong, Helen; Tan, Jennifer Pei-Ling

    2018-01-01

    Teamwork, one of the core competencies for the twenty-first century learner, is a critical skill for work and learning. However, assessing teamwork is complex, in particular, developing a measure of teamwork that is domain-generic and applicable across a wide range of learners. This paper documents one such study that leverages technology to help…

  12. Sea-level rise and its possible impacts given a ‘beyond 4°C world’ in the twenty-first century

    NARCIS (Netherlands)

    Nicholls, R.; Marinova, N.A.; Lowe, J.; Brown, S.; Vellinga, P.

    2011-01-01

    The range of future climate-induced sea-level rise remains highly uncertain with continued concern that large increases in the twenty-first century cannot be ruled out. The biggest source of uncertainty is the response of the large ice sheets of Greenland and west Antarctica. Based on our analysis,

  13. Bruce's Magnificent Quartet: Inquiry, Community, Technology and Literacy--Implications for Renewing Qualitative Research in the Twenty-First Century

    Science.gov (United States)

    Davidson, Judith

    2014-01-01

    Bruce and Bishop's community informatics work brings forward four critical concepts: inquiry, community, technology, and literacy. These four terms serve as the basis for a discussion of qualitative research in the twenty-first century--what is lacking and what is needed. The author suggests that to resolve the tensions or challenges…

  14. Use of Comics to Enhance Students' Learning for the Development of the Twenty-First Century Competencies in the Mathematics Classroom

    Science.gov (United States)

    Toh, Tin Lam; Cheng, Lu Pien; Ho, Siew Yin; Jiang, Heng; Lim, Kam Ming

    2017-01-01

    This paper discusses the use of comics in teaching mathematics in the secondary mathematics classroom. We explicate how the use of comics in teaching mathematics can prepare students for the twenty-first century competencies. We developed an alternative teaching package using comics for two lower secondary mathematics topics. This alternative…

  15. AAAI's National and Innovative Applications Conferences Celebrate 50 Years of AI

    OpenAIRE

    Hedberg, Sara R.

    2006-01-01

    The Twenty-First National Conference on Artificial Intelligence and the Nineteenth Innovative Applications of Artificial Intelligence Conference commemorated fifty years of artificial intelligence research in Boston, Massachusetts this past July.

  16. Addressing the main challenges of energy security in the twenty-first century – Contributions of the conferences on Sustainable Development of Energy, Water and Environment Systems

    DEFF Research Database (Denmark)

    Markovska, Natasa; Duić, Neven; Mathiesen, Brian Vad

    2016-01-01

    Climate change and fossil fuel reserve depletion both pose challenges for energy security and for wellbeing in general. The top ten among them include: Decarbonising the world economy; Enhancing the energy efficiency and energy savings in buildings; Advancing the energy technologies; Moving towards...... energy systems based on variable renewables; Electrifying the transport and some industrial processes; Liberalizing and extending the energy markets; Integrating energy sectors to Smart Energy Systems; Making the cities and communities smart; Diversifying the energy sources; and Building more...

  17. THE ROLE AND RATIONALE OF THE NUCLEAR NON-PROLIFERATION TREATY IN THE TWENTY-FIRST CENTURY

    Directory of Open Access Journals (Sweden)

    Tom COPPEN

    2012-12-01

    Full Text Available Much has been written about perceived weaknesses of the NPT and the challenges it has been facing over the last decades. Analysing the most important provisions of the NPT, this article demonstrates how the treaty has managed to maintain its central role in the non-proliferation regime since its conclusion, and how it retains enough flexibility within its review mechanism and its managerial approach to supervision to keep this position for the decades to come. The theoretical framework of the article is formed by theory of arms control law, relevant features of which are: a large influence of politics and national interests of states on the rule of law; its flexible yet treaty-based nature; and the distinctive role of supervision in order to ensure compliance with primary rules. The article analyses key NPT provisions. Based on Article VIII, the NPT Review Conferences have both an important political and legal function. They are the NPT’s mechanism for review, implementation and supervision; in legal terms, they enable the evolution of the NPT based on subsequent agreement and practice. The NPT articles on non-proliferation and disarmament illustrate how the NPT has evolved to close off loopholes (Articles I and II and retains its flexibility whilst providing a global platform for negotiations on nuclear disarmament (Article VI. Article III evolved and must be understood to oblige NPT states to sign an Additional Protocol (AP with the IAEA. Article IV sets the parameters for the peaceful uses of nuclear energy, but leaves room for negotiation and conflict. The supervision of the NPT, illustrated by the case of Iran, is a complicated process involving international organisations such as the IAEA and the UNSC; while these may play important roles, however, the enforcement of the NPT is ultimately left to the NPT states themselves.

  18. Changing ideas in forestry: A comparison of concepts in Swedish and American forestry journals during the early twentieth and twenty-first centuries.

    Science.gov (United States)

    Mårald, Erland; Langston, Nancy; Sténs, Anna; Moen, Jon

    2016-02-01

    By combining digital humanities text-mining tools and a qualitative approach, we examine changing concepts in forestry journals in Sweden and the United States (US) in the early twentieth and early twenty-first centuries. Our first hypothesis is that foresters at the beginning of the twentieth century were more concerned with production and less concerned with ecology than foresters at the beginning of the twenty-first century. Our second hypothesis is that US foresters in the early twentieth century were less concerned with local site conditions than Swedish foresters. We find that early foresters in both countries had broader-and often ecologically focused-concerns than hypothesized. Ecological concerns in the forestry literature have increased, but in the Nordic countries, production concerns have increased as well. In both regions and both time periods, timber management is closely connected to concerns about governance and state power, but the forms that governance takes have changed.

  19. Historical Approach to the Role of Women in the Legislation of Iran: A Case Study on the Twenty-First Parliament

    Directory of Open Access Journals (Sweden)

    Sarah Sheibani

    2017-01-01

    Full Text Available One hundred and ten years ago, men and women took constitutionalism to achieve justice in Iran. National Council was the result of the Iranian people's struggle for justice, both women and men. Men policies from the beginning of legislation put women as minors and lunatics and bankrupted and banned them from vote. However, the Constitutional Revolution as a turning point and a national revolution played a key role in changing attitudes to women and structural context of their participation provided. In this paper, with the use of descriptive-analytical as well as quantitative methods, we sought to answer the question that what was the position of women in the twenty-first Parliament. The results of this study suggest that when Iranian women were allowed to participate politics, they have achieved to show their ability in politics as we saw examples in the twenty-first Parliament in which women had twenty-two percent participation.

  20. Proceedings of the Fifth Seminar of High Temperature Reactor: The Role and Challenge with HTR Opportunity in the Twenty-first Century

    International Nuclear Information System (INIS)

    As-Natio-Lasman; Zaki-Su'ud; Bambang-Sugiono

    2000-11-01

    The Seminar in HTR Reactor has become routine activities held in BATAN since 1994. This Seminar is a continuation of the Seminar on Technology and HTR Application held by Centre for Development of Advanced Reactor System. The theme of the seminar is Role, Challenge, Opportunity of HTR in the Twenty-first Century. Thirteen papers presented in the seminar were collected into proceedings. The aims of the proceedings is to provide information and references on nuclear technology, mainly on HTR technology. (DII)

  1. Change and Continuity in Librarianship: Approaching the Twenty-First Century. Proceedings of the 40th Military Librarians Workshop, 20-22 November 1996, Annapolis, Maryland,

    Science.gov (United States)

    1996-11-01

    Novembecr 1996 Arinarolis, Maryland1 rDIO QUALMTY DZEOTN I VIBYKUTON UrtAIK=yg A Change and Continuity in Librarianship : Approaching the Twenty-first...speakers Walt Crawford (Keynote), speaking on "Millennial Librarianship ;" Dr. Keith Swigger, Dean of the Graduate School of Library and Information...1 --Richard Hume Werking Millennial Librarianship : Maintaining the Mix and Avoiding the Hype .................. 2 --Walt Crawford

  2. Editorial for IEEE Transactions on Power Electronics, January 2013

    DEFF Research Database (Denmark)

    Blaabjerg, Frede; Lehman, Brad

    2013-01-01

    should increase the impact factor of the IEEE TRANSACTIONS ON POWER ELECTRONICS (TPEL). In 2007, TPEL published 2600 pages, and it has gradually been increased to 4000 pages in 2011, 5000 pages in 2012, and 5500 pages are projected for 2013. We have decided to publish 12 printed issues so every month...... a new issue will be printed. A graph is provided showing the number of regular papers received in the past years as well as the number of published pages in the TPEL. Finally they note that in 2008, TPEL obtained a record high value for the impact factor (as shown in a figure) but in 2009 it was reduced...... the papers to be read over a longer time span; 2) Web of Science (ISI Thomsen Reuter) began to register new power electronics conferences in their database, and citations from conferences counts and contributes to a higher impact factor....

  3. The IEEE Milestone event at CERN

    CERN Multimedia

    2005-01-01

    On the initiative of its French and Swiss Sections, the IEEE has honoured CERN with an 'IEEE Milestone in the history of electricity and electronics' for the invention of the multi-wire proportional chamber in 1968. The IEEE established the Electrical Engineering Milestones programe in 1983 to honour significant achievements in the history of electrical and electronics engineering. To be designated, an achievement must be at least 25 years old, must have involved a unique solution to an engineering problem, and must have had at least regional impact. Currently there are more than  50 IEEE Milestones around the world. http://www.ieee.org/organizations/history_center/cern.html The installation and unveiling of this IEEE Milestone will provide the opportunity to emphasize the close relationship between science, technology, industry and well-being in society.  A ceremony, organised with the support of a group of IEEE members working at CERN, will be held at the CERN Globe of Science and Inn...

  4. CERN receives prestigious Milestone recognition from IEEE

    CERN Multimedia

    2005-01-01

    At a ceremony at CERN, Mr W. Cleon Anderson, President of the Institute of Electrical and Electronics Engineers (IEEE) formally a Milestone plaque in recognition of the invention of electronic particle detectors at CERN

  5. Twenty-First-Century Kids, Twenty-First-Century Librarians

    Science.gov (United States)

    Walter, Virginia A.

    2010-01-01

    Inspired by a new generation of librarians and children, Walter reconsiders the legacy passed on by the matriarchs of children's services and examines more recent trends and challenges growing out of changes in educational philosophy and information technology. This thoroughly researched book includes the current issues and trends of: (1)…

  6. 2010 IEEE World Congress on Computational Intelligence (IEEE WCCI 2010)

    CERN Document Server

    Solanas, Agusti; Martinez-Balleste, Antoni; Computational Intelligence for Privacy and Security

    2012-01-01

    The book is a collection of invited papers on Computational Intelligence for Privacy and Security. The majority of the chapters are extended versions of works presented at the special session on Computational Intelligence for Privacy and Security of the International Joint Conference on Neural Networks (IJCNN-2010) held July 2010 in Barcelona, Spain. The book is devoted to Computational Intelligence for Privacy and Security. It provides an overview of the most recent advances on the Computational Intelligence techniques being developed for Privacy and Security. The book will be of interest to researchers in industry and academics and to post-graduate students interested in the latest advances and developments in the field of Computational Intelligence for Privacy and Security.

  7. Book review of Capital in the Twenty-First Century, by Thomas Piketty. Cambridge, Massachusetts, London, England: The Belknap Press of Harvard Press, 2014, 605 pages

    OpenAIRE

    Paul Dobrescu; Mălina Ciocea

    2015-01-01

    “Every now and then, the field of economics produces an important book; this is one of them” (Cowen, 2014). These are the opening words of Tyler Cowen’s presentation of Thomas Piketty’s work, “Capital in the Twenty-First Century” (Piketty, 2014), in Foreign Affairs. This is a book that is visibly placed in all important bookstores around the world, widely debated, acclaimed, sold (over 1 million copies have been sold so far). It has been favorably reviewed or quoted in all major journals. The...

  8. Causes and impacts of changes in the Arctic freshwater budget during the twentieth and twenty-first centuries in an AOGCM

    Energy Technology Data Exchange (ETDEWEB)

    Arzel, Olivier [University of New South Wales, Climate and Environmental Dynamics Laboratory, School of Mathematics and Statistics, Sydney, NSW (Australia); Fichefet, Thierry; Goosse, Hugues [Universite Catholique de Louvain, Institut d' Astronomie et de Geophysique G. Lemaitre, Louvain-la-Neuve (Belgium); Dufresne, Jean-Louis [Institut Pierre Simon Laplace UPMC/CNRS, Laboratoire de Meteorologie Dynamique, Paris (France)

    2008-01-15

    The fourth version of the atmosphere-ocean general circulation (AOGCM) model developed at the Institut Pierre-Simon Laplace (IPSL-CM4) is used to investigate the mechanisms influencing the Arctic freshwater balance in response to anthropogenic greenhouse gas forcing. The freshwater influence on the interannual variability of deep winter oceanic convection in the Nordic Seas is also studied on the basis of correlation and regression analyses of detrended variables. The model shows that the Fram Strait outflow, which is an important source of freshwater for the northern North Atlantic, experiences a rapid and strong transition from a weak state toward a relatively strong state during 1990-2010. The authors propose that this climate shift is triggered by the retreat of sea ice in the Barents Sea during the late twentieth century. This sea ice reduction initiates a positive feedback in the atmosphere-sea ice-ocean system that alters both the atmospheric and oceanic circulations in the Greenland-Iceland-Norwegian (GIN)-Barents Seas sector. Around year 2080, the model predicts a second transition threshold beyond which the Fram Strait outflow is restored toward its original weak value. The long-term freshening of the GIN Seas is invoked to explain this rapid transition. It is further found that the mechanism of interannual changes in deep mixing differ fundamentally between the twentieth and twenty-first centuries. This difference is caused by the dominant influence of freshwater over the twenty-first century. In the GIN Seas, the interannual changes in the liquid freshwater export out of the Arctic Ocean through Fram Strait combined with the interannual changes in the liquid freshwater import from the North Atlantic are shown to have a major influence in driving the interannual variability of the deep convection during the twenty-first century. South of Iceland, the other region of deep water renewal in the model, changes in freshwater import from the North Atlantic

  9. Does the Common Agricultural Policy still make sense in the twenty-first century? CAP after 2013 from the perspective of Poland and Hungary

    Directory of Open Access Journals (Sweden)

    Elżbieta Daszkowska

    2009-01-01

    Full Text Available The EU CAP has developed immensely since the 1960’s. However, its current determinants are completely different from those which formed the CAP foundations. This results mainly from the fact that the UE CAP must meet present-day challenges and threats. Moreover, further EU enlargements also significantly influenced performance of this sector of economy. It is important to determine whether the existence of the CAP in the twenty-first century still makes sense and to specify in more detail the CAP reform directions after 2013 from the perspective of Poland and Hungary.

  10. A Conservation Ethic and the Collecting of Animals by Institutions of Natural Heritage in the Twenty-First Century: Case Study of the Australian Museum

    Directory of Open Access Journals (Sweden)

    Timothy Ikin

    2011-02-01

    Full Text Available Collecting of animals from their habitats for preservation by museums and related bodies is a core operation of such institutions. Conservation of biodiversity in the current era is a priority in the scientific agendas of museums of natural heritage in Australia and the world. Intuitively, to take animals from the wild, while engaged in scientific or other practices that are supposed to promote their ongoing survival, may appear be incompatible. The Australian Museum presents an interesting ground to consider zoological collecting by museums in the twenty-first century. Anderson and Reeves in 1994 argued that a milieu existed that undervalued native species, and that the role of natural history museums, up to as late as the mid-twentieth century, was only to make a record the faunal diversity of Australia, which would inevitably be extinct. Despite the latter, conservation of Australia’s faunal diversity is a key aspect of research programmes in Australia’s institutions of natural heritage in the current era. This paper analyses collecting of animals, a core task for institutions of natural heritage, and how this interacts with a professed “conservation ethic” in a twenty-first century Australian setting.

  11. Book review of Capital in the Twenty-First Century, by Thomas Piketty. Cambridge, Massachusetts, London, England: The Belknap Press of Harvard Press, 2014, 605 pages

    Directory of Open Access Journals (Sweden)

    Paul Dobrescu

    2015-04-01

    Full Text Available “Every now and then, the field of economics produces an important book; this is one of them” (Cowen, 2014. These are the opening words of Tyler Cowen’s presentation of Thomas Piketty’s work, “Capital in the Twenty-First Century” (Piketty, 2014, in Foreign Affairs. This is a book that is visibly placed in all important bookstores around the world, widely debated, acclaimed, sold (over 1 million copies have been sold so far. It has been favorably reviewed or quoted in all major journals. The assessment of “Capital in the Twenty-First Century” by Paul Krugman, Nobel Economics Prize Laureate as a “magnificent, sweeping meditation on inequality”, is highly relevant: “This is a book that will change both the way we think about society and the way we do economics” (Krugman, 2014. Finally, Piketty’s book is included in the list of the year’s best books by prestigious journals, such as The Economist, Financial Times, The Washington Post, Observer, The Independent, Daily Telegraph; Financial Times and McKinsey have hailed it as the best book of 2014.

  12. High School Students' Perceptions of the Effects of International Science Olympiad on Their STEM Career Aspirations and Twenty-First Century Skill Development

    Science.gov (United States)

    Sahin, Alpaslan; Gulacar, Ozcan; Stuessy, Carol

    2015-12-01

    Social cognitive theory guided the design of a survey to investigate high school students' perceptions of factors affecting their career contemplations and beliefs regarding the influence of their participation in the international Science Olympiad on their subject interests and twenty-first century skills. In addition, gender differences in students' choice of competition category were studied. Mixed methods analysis of survey returns from 172 Olympiad participants from 31 countries showed that students' career aspirations were affected most by their teachers, personal interests, and parents, respectively. Students also indicated that they believed that their participation in the Olympiad reinforced their plan to choose a science, technology, engineering, and mathematics (STEM) major at college and assisted them in developing and improving their twenty-first century skills. Furthermore, female students' responses indicated that their project choices were less likely to be in the engineering category and more likely to be in the environment or energy categories. Findings are discussed in the light of increasing the awareness of the role and importance of Science Olympiads in STEM career choice and finding ways to attract more female students into engineering careers.

  13. How Has Elderly Migration Changed in the Twenty-First Century? What the Data Can-and Cannot-Tell Us.

    Science.gov (United States)

    Conway, Karen Smith; Rork, Jonathan C

    2016-08-01

    Interstate elderly migration has strong implications for state tax policies and health care systems, yet little is known about how it has changed in the twenty-first century. Its relative rarity requires a large data set with which to construct reliable measures, and the replacement of the U.S. Census long form (CLF) with the American Community Survey (ACS) has made such updates difficult. Two commonly used alternative migration data sources-the Current Population Survey (CPS) and the Statistics of Income (SOI) program of the Internal Revenue Service (IRS)-suffer serious limitations in studying the migration of any subpopulation, including the elderly. Our study informs migration research in the post-2000 era by identifying methodological differences between data sources and devising strategies for reconciling the CLF and ACS. Our investigation focusing on the elderly suggests that the ACS can generate comparable migration data that reveal a continuation of previously identified geographic patterns as well as changes unique to the 2000s. However, its changed definition of residence and survey timing leaves us unable to construct a comparable national migration rate, suggesting that one must use national trends in the smaller CPS to investigate whether elderly migration has increased or decreased in the twenty-first century.

  14. Wicked Female Characters in Roddy Doyle’s “The Pram”: Revisiting Celtic and Polish Myths in the Context of Twenty-First Century Ireland

    Directory of Open Access Journals (Sweden)

    Burcu Gülüm Tekin

    2015-07-01

    Full Text Available “The Pram” is the only horror story in Roddy Doyle’s collection The Deportees and Other Stories (2007. It is also unique in terms of its approach to Ireland’s multicultural scene in the twenty-first century. Doyle turns the other side of the coin and introduces a migrant caretaker (Alina, who loses her mind due to her employees’ (the O’Reilly family ill-treatment. As a reaction to their scornful attitude, Alina becomes a murderer. Set in the context of twenty-first century Dublin, “The Pram” contains various references to Celtic and Polish mythological female figures (in particular, the Old Hag of Beara and Boginka, which strengthen the thrilling, mythical elements in the plot. This paper aims to examine the characters’ negative attitude towards migrants in Ireland in the light of the racist discourse present in the story. Also, I will focus on the story’s female characters and discuss the handicaps of being a female migrant in Ireland. The parallels between the mythical female figures and the protagonist Alina will be another point to be analyzed. The argument of this paper is that Doyle does not always portray the positive outcomes of a multicultural society. On the contrary, he conveys the perspective of the incoming migrant. “The Pram” stages the obstacles that a female outsider may experience in Ireland and her subsequent transformation as a result of the racism she encounters there.

  15. Template for preparation of papers for IEEE sponsored conferences & symposia.

    Science.gov (United States)

    Sacchi, L; Dagliati, A; Tibollo, V; Leporati, P; De Cata, P; Cerra, C; Chiovato, L; Bellazzi, R

    2015-01-01

    To improve the access to medical information is necessary to design and implement integrated informatics techniques aimed to gather data from different and heterogeneous sources. This paper describes the technologies used to integrate data coming from the electronic medical record of the IRCCS Fondazione Maugeri (FSM) hospital of Pavia, Italy, and combines them with administrative, pharmacy drugs purchase coming from the local healthcare agency (ASL) of the Pavia area and environmental open data of the same region. The integration process is focused on data coming from a cohort of one thousand patients diagnosed with Type 2 Diabetes Mellitus (T2DM). Data analysis and temporal data mining techniques have been integrated to enhance the initial dataset allowing the possibility to stratify patients using further information coming from the mined data like behavioral patterns of prescription-related drug purchases and other frequent clinical temporal patterns, through the use of an intuitive dashboard controlled system.

  16. CERN receives prestigious Milestone recognition from IEEE

    CERN Multimedia

    2005-01-01

    The Nobel prize winner Georges Charpak and W. Cleon Anderson, IEEE President, unveil the Milestone bronze plaques. At a ceremony on 26 September at the Globe of Science and Innovation, Mr W. Cleon Anderson, President of the Institute of Electrical and Electronics Engineers (IEEE) formally dedicated Milestone plaques recognising the invention of electronic particle detectors at CERN. The plaque were unveiled by Mr Anderson and Georges Charpak, the Nobel-prize winning inventor of wire chamber technology at CERN in 1968. The IEEE is the world's largest professional association dedicated to the advancement of technology with 365,000 individual members in over 150 countries. Established in 1983, there are currently over 60 Milestones around the world. They honour momentous achievements in the history of electrical and electronics engineering, such as the landing of the first transatlantic cable, code breaking at Bletchley Park during World War II, and the development of the Japanese Bullet train, the Tokaido Shin...

  17. The scalable coherent interface, IEEE P1596

    International Nuclear Information System (INIS)

    Gustavson, D.B.

    1990-01-01

    IEEE P1596, the scalable coherent interface (formerly known as SuperBus) is based on experience gained while developing Fastbus (ANSI/IEEE 960--1986, IEC 935), Futurebus (IEEE P896.x) and other modern 32-bit buses. SCI goals include a minimum bandwidth of 1 GByte/sec per processor in multiprocessor systems with thousands of processors; efficient support of a coherent distributed-cache image of distributed shared memory; support for repeaters which interface to existing or future buses; and support for inexpensive small rings as well as for general switched interconnections like Banyan, Omega, or crossbar networks. This paper presents a summary of current directions, reports the status of the work in progress, and suggests some applications in data acquisition and physics

  18. Consideration of land-use and land-cover changes in the projection of climate extremes over North America by the end of the twenty-first century

    Science.gov (United States)

    Alexandru, Adelina

    2018-03-01

    Changes in the essential climate extremes indices and surface variables for the end of the twenty-first century are assessed in this study based on two transient climate change simulations, with and without land-use and land-cover changes (LULCC), but identical atmospheric forcing. The two simulations are performed with the 5th generation of the Canadian Regional Climate Model (CRCM5) driven by the Canadian Earth System Model for the (2006-2100)-Representative Concentration Pathway 4.5 (RCP4.5) scenario. For the simulation with LULCC, land-cover data sets are taken from the global change assessment model (GCAM) representing the RCP4.5 scenario for the period 2006-2100. LULCC in RCP4.5 scenario suggest significant reduction in cultivated land (e.g. Canadian Prairies and Mississippi basin) due to afforestation. CRCM5 climate projections imply a general warming by the end of the twenty-first century, especially over the northern regions in winter. CRCM5 projects more warm spell-days per year over most areas of the continent, and implicitly more summer days and tropical nights at the expense of cold-spell, frost and ice days whose number is projected to decrease by up to 40% by the end of the twenty-first century with respect to the baseline period 1971-2000. Most land areas north of 45°N, in all seasons, as well as the southeastern United States in summer, exhibit increases in mean precipitation under the RCP4.5 scenario. In contrast, central parts of the continent in summer and much of Mexico in all seasons show reduced precipitation. In addition, large areas of North America exhibit changes of 10 to 40% (depending on the season and geographical location) in the number of heavy precipitation days. Results also suggest that the biogeophysical effects of LULCC on climate, assessed through differences between the two simulations, lead to warmer regional climates, especially in winter. The investigation of processes leading to this response shows high sensitivity of the

  19. Twenty-First Water Reactor Safety Information Meeting. Volume 3, Primary system integrity; Aging research, products and applications; Structural and seismic engineering; Seismology and geology: Proceedings

    Energy Technology Data Exchange (ETDEWEB)

    Monteleone, S. [comp.] [Brookhaven National Lab., Upton, NY (United States)

    1994-04-01

    This three-volume report contains 90 papers out of the 102 that were presented at the Twenty-First Water Reactor Safety Information Meeting held at the Bethesda Marriott Hotel, Bethesda, Maryland, during the week of October 25-27, 1993. The papers are printed in the order of their presentation in each session and describe progress and results of programs in nuclear safety research conducted in this country and abroad. Foreign participation in the meeting included papers presented by researchers from France, Germany, Japan, Russia, Switzerland, Taiwan, and United Kingdom. The titles of the papers and the names of the authors have been updated and may differ from those that appeared in the final program of the meeting. Selected papers were indexed separately for inclusion in the Energy Science and Technology Database.

  20. Projected impact of climate change in the hydroclimatology of Senegal with a focus over the Lake of Guiers for the twenty-first century

    Science.gov (United States)

    Tall, Moustapha; Sylla, Mouhamadou Bamba; Diallo, Ismaïla; Pal, Jeremy S.; Faye, Aïssatou; Mbaye, Mamadou Lamine; Gaye, Amadou Thierno

    2017-07-01

    This study analyzes the impact of anthropogenic climate change in the hydroclimatology of Senegal with a focus over the lake of Guiers basin for the middle (2041-2060) and late twenty-first century (2080-2099). To this end, high-resolution multimodel ensemble based on regional climate model experiments considering two Representative Concentration Pathways (RCP4.5 and RCP8.5) is used. The results indicate that an elevated warming, leading to substantial increase of atmospheric water demand, is projected over the whole of Senegal. In the Lake basin, these increases in potential evapotranspiration (PE) range between 10 and 25 % in the near future and for RCP4.5 while for the far future and RCP8.5, they exceed 50 %. In addition, mean precipitation unveils contrasting changes with wetter (10 to 25 % more) conditions by the middle of the century and drier conditions (more than 50 %) during the late twenty-first century. Such changes cause more/less evapotranspiration and soil moisture respectively during the two future periods. Furthermore, surface runoff shows a tendency to increase in most areas amid few locations including the Lake basin with substantial reduction. Finally, it is found that while semi-arid climates develop in the RCP4.5 scenario, generalized arid conditions prevail over the whole Senegal for RCP8.5. It is thus evident that these future climate conditions substantially threaten freshwater availability for the country and irrigated cropping over the Lake basin. Therefore, strong governmental politics are needed to help design response options to cope with the challenges posed by the projected climate change for the country.

  1. Editorial for IEEE Transactions on Power Electronics

    DEFF Research Database (Denmark)

    Blaabjerg, Frede

    2007-01-01

    Our IEEE transactions on power electronics has had some very positive progress these past years under the leadership of Dr. Daan van Wyk. Papers have been processed efficiently both in review time and publication time. This success has spread throughout the whole power electronics community which...

  2. The IEEE 802.11a standards

    Indian Academy of Sciences (India)

    First page Back Continue Last page Overview Graphics. The IEEE 802.11a standards. Provides higher data rate and system capacities and uses OFDM in Physical Layer to mitigate the multi path effects;. Supports multiple 20Mhz channel. Each channel being an OFDM Modulated;; 52 Carriers. 48 data carrier; 4 Carry pilot ...

  3. Retos de la bioética en la medicina del siglo XXI Challenges of bioethics in twenty-first century medicine

    Directory of Open Access Journals (Sweden)

    Jorge Alberto Álvarez-Díaz

    2011-12-01

    Full Text Available Para plantear posibles retos de la bioética en la medicina del siglo XXI es necesario considerar que existieron algunos retos en el pasado (en el origen de esa nueva disciplina llamada bioética; que los retos se han ido modificando con el avance científico, biomédico y humanístico; considerando que los retos que pueden plantearse para el futuro serán, de diferentes maneras, resultado de este devenir histórico. Se plantean como grandes retos: los problemas no resueltos de justicia, equidad y pobreza; los retos que plantea la introducción de nuevas tecnologías con el paradigma de la nanomedicina y los retos que plantea el avance de las neurociencias con el paradigma de la neuroética.In order to propose possible challenges of bioethics in the twenty-first century medicine, it is necessary to consider that there were some past challenges (at the origin of this new discipline called bioethics, that the challenges have been modified with scientific, biomedical and humanistic breakthroughs, considering at the same time that challenges that may arise in the future will be, in different ways, a result of this historical evolution. The major challenges would be in the future: the unsolved problems of justice, equity and poverty; the challenges posed by the introduction of new technologies with the nanomedicine paradigm; and finally, the challenges driven by breakthroughs in neurosciences with the neuroethics paradigm.

  4. Thomas Piketty: Capital in the Twenty-First Century (Le Capital au XXIe siècle. (Ensk þýðing: Arthur Goldhammer.

    Directory of Open Access Journals (Sweden)

    Gylfi Magnússon

    2014-06-01

    Full Text Available Í umsögn gagnrýnanda kemur meðal annars eftirfarandi fram: Ritinu er ekki ætlað að vera lokaorðin um viðfangsefnið heldur miklu frekar grunnur að frekari umræðu og rannsóknum. Það hefur tekist. Capital in the Twenty-First Century er verk sem hefur þegar vakið mikla umræðu og verður vafalaust rætt áfram árum saman. Það er raunar nánast skyldulesning fyrir þá sem ætla sér að fjalla um þjóðhagfræði og hlutverk hins opinbera, hversu sammála eða ósammála sem þeir eru höfundinum.

  5. Changes of climate regimes during the last millennium and the twenty-first century simulated by the Community Earth System Model

    Science.gov (United States)

    Huang, Wei; Feng, Song; Liu, Chang; Chen, Jie; Chen, Jianhui; Chen, Fahu

    2018-01-01

    This study examines the shifts in terrestrial climate regimes using the Köppen-Trewartha (K-T) climate classification by analyzing the Community Earth System Model Last Millennium Ensemble (CESM-LME) simulations for the period 850-2005 and CESM Medium Ensemble (CESM-ME), CESM Large Ensemble (CESM-LE) and CESM with fixed aerosols Medium Ensemble (CESM-LE_FixA) simulations for the period 1920-2080. We compare K-T climate types from the Medieval Climate Anomaly (MCA) (950-1250) with the Little Ice Age (LIA) (1550-1850), from present day (PD) (1971-2000) with the last millennium (LM) (850-1850), and from the future (2050-2080) with the LM in order to place anthropogenic changes in the context of changes due to natural forcings occurring during the last millennium. For CESM-LME, we focused on the simulations with all forcings, though the impacts of individual forcings (e.g., solar activities, volcanic eruptions, greenhouse gases, aerosols and land use changes) were also analyzed. We found that the climate types changed slightly between the MCA and the LIA due to weak changes in temperature and precipitation. The climate type changes in PD relative to the last millennium have been largely driven by greenhouse gas-induced warming, but anthropogenic aerosols have also played an important role on regional scales. At the end of the twenty-first century, the anthropogenic forcing has a much greater effect on climate types than the PD. Following the reduction of aerosol emissions, the impact of greenhouse gases will further promote global warming in the future. Compared to precipitation, changes in climate types are dominated by greenhouse gas-induced warming. The large shift in climate types by the end of this century suggests possible wide-spread redistribution of surface vegetation and a significant change in species distributions.

  6. Future projections of synoptic weather types over the Arabian Peninsula during the twenty-first century using an ensemble of CMIP5 models

    KAUST Repository

    El Kenawy, Ahmed M.

    2016-07-28

    An assessment of future change in synoptic conditions over the Arabian Peninsula throughout the twenty-first century was performed using 20 climate models from the Coupled Model Intercomparison Project Phase 5 (CMIP5) database. We employed the mean sea level pressure (SLP) data from model output together with NCEP/NCAR reanalysis data and compared the relevant circulation types produced by the Lamb classification scheme for the base period 1975–2000. Overall, model results illustrated good agreement with the reanalysis, albeit with a tendency to underestimate cyclonic (C) and southeasterly (SE) patterns and to overestimate anticyclones and directional flows. We also investigated future projections for each circulation-type during the rainy season (December–May) using three Representative Concentration Pathways (RCPs), comprising RCP2.6, RCP4.5, and RCP8.5. Overall, two scenarios (RCP4.5 and RCP 8.5) revealed a statistically significant increase in weather types favoring above normal rainfall in the region (e.g., C and E-types). In contrast, weather types associated with lower amounts of rainfall (e.g., anticyclones) are projected to decrease in winter but increase in spring. For all scenarios, there was consistent agreement on the sign of change (i.e., positive/negative) for the most frequent patterns (e.g., C, SE, E and A-types), whereas the sign was uncertain for less recurrent types (e.g., N, NW, SE, and W). The projected changes in weather type frequencies in the region can be viewed not only as indicators of change in rainfall response but may also be used to inform impact studies pertinent to water resource planning and management, extreme weather analysis, and agricultural production.

  7. Thomas Piketty’s Book “Capital in the Twenty-First Century”, Karl Marx and the Political Economy of the Internet

    Directory of Open Access Journals (Sweden)

    Christian Fuchs

    2014-05-01

    Full Text Available Thomas Piketty’s book Capital in the Twenty-First Century has resulted in a sustained political and academic debate about capitalism in the 21st century. This article discusses the relevance of the book in the context of Karl Marx’s works and the political economy of the Internet. It identifies 3 common reactions to Piketty’s book: 1 dignification; 2 denigration of the work’s integrity; 3 the denial of any parallel to Marx. I argue that all three reactions do not help the task of creating a New Left that is urgently needed in the situation of sustained capitalist crisis. Marxists will certainly view Piketty’s analysis of capitalism and political suggestions critically. I argue that they should however not dismiss them, but like Marx and Engels aim to radicalise reform suggestions. In relation to the Internet, this paper discusses especially how insights from Piketty’s book can inform the discussion of tax avoidance by transnational Internet companies such as Google, Facebook and Amazon. For establishing an alternative, non-commercial, non-capitalist Internet one can draw insights about institutional reforms and progressive capital taxation from Piketty that can be radicalised in order to ground radical-reformist Internet politics. “The daily struggle for reforms, for the amelioration of the condition of the workers within the framework of the existing social order, and for democratic institutions, offers to the social democracy the only means of engaging in the proletarian class war and working in the direction of the final goal-the conquest of political power and the suppression of wage labor. Between social reforms and revolution there exists for the social democracy an indissoluble tie. The struggle for reforms is its means; the social revolution, its aim” (Rosa Luxemburg 1899, 41.

  8. Future projections of synoptic weather types over the Arabian Peninsula during the twenty-first century using an ensemble of CMIP5 models

    Science.gov (United States)

    El Kenawy, Ahmed M.; McCabe, Matthew F.

    2017-10-01

    An assessment of future change in synoptic conditions over the Arabian Peninsula throughout the twenty-first century was performed using 20 climate models from the Coupled Model Intercomparison Project Phase 5 (CMIP5) database. We employed the mean sea level pressure (SLP) data from model output together with NCEP/NCAR reanalysis data and compared the relevant circulation types produced by the Lamb classification scheme for the base period 1975-2000. Overall, model results illustrated good agreement with the reanalysis, albeit with a tendency to underestimate cyclonic (C) and southeasterly (SE) patterns and to overestimate anticyclones and directional flows. We also investigated future projections for each circulation-type during the rainy season (December-May) using three Representative Concentration Pathways (RCPs), comprising RCP2.6, RCP4.5, and RCP8.5. Overall, two scenarios (RCP4.5 and RCP 8.5) revealed a statistically significant increase in weather types favoring above normal rainfall in the region (e.g., C and E-types). In contrast, weather types associated with lower amounts of rainfall (e.g., anticyclones) are projected to decrease in winter but increase in spring. For all scenarios, there was consistent agreement on the sign of change (i.e., positive/negative) for the most frequent patterns (e.g., C, SE, E and A-types), whereas the sign was uncertain for less recurrent types (e.g., N, NW, SE, and W). The projected changes in weather type frequencies in the region can be viewed not only as indicators of change in rainfall response but may also be used to inform impact studies pertinent to water resource planning and management, extreme weather analysis, and agricultural production.

  9. Application of the Intervention Mapping Framework to Develop an Integrated Twenty-first Century Core Curriculum—Part Three: Curriculum Implementation and Evaluation

    Directory of Open Access Journals (Sweden)

    Jaime A. Corvin

    2017-11-01

    Full Text Available Public health professionals have been challenged to radically reform public health training to meet evolving demands of twenty-first century public health. Such a transformation requires a systems thinking approach with an interdisciplinary focus on problem solving, leadership, management and teamwork, technology and information, budgeting and finance, and communication. This article presents processes for implementing and evaluating a revised public health curriculum and outlines lessons learned from this initiative. To date, more than 200 students have participated in the initial pilot testing of this program. A rigorous process and outcome evaluation plan was developed and employed. Results from the evaluation were used to enhance the resulting curriculum. Specifically, all instructional materials were evaluated by both the students who received the materials and the faculty who presented the materials. As each successive pilot is delivered, both enrollment and faculty involvement has increased. Through this process, the value of committed faculty, the importance of engaging learners in the evaluation of an education program, and the need to implement curriculum that has been carefully evaluated and evidence-informed in nature has emerged. We credit our successful transformation of the Masters in Public Health core to the challenge provided by the Framing the Future task force, the commitment of our College of Public Health leadership, the engagement of our faculty, and the time we allowed for the process to unfold. Ultimately, we believe this transformed curriculum will result in better trained public health professionals, interdisciplinary practitioners who can see public health challenges in new and different ways.

  10. Sub-Saharan Northern African climate at the end of the twenty-first century: forcing factors and climate change processes

    Energy Technology Data Exchange (ETDEWEB)

    Patricola, C.M. [Cornell University, Department of Earth and Atmospheric Sciences, Ithaca, NY (United States); Texas A and M University, Department of Atmospheric Sciences, College Station, TX (United States); Cook, K.H. [The University of Texas at Austin, Department of Geological Sciences, Jackson School of Geosciences, Austin, TX (United States)

    2011-09-15

    A regional climate model, the Weather Research and Forecasting (WRF) Model, is forced with increased atmospheric CO{sub 2} and anomalous SSTs and lateral boundary conditions derived from nine coupled atmosphere-ocean general circulation models to produce an ensemble set of nine future climate simulations for northern Africa at the end of the twenty-first century. A well validated control simulation, agreement among ensemble members, and a physical understanding of the future climate change enhance confidence in the predictions. The regional model ensembles produce consistent precipitation projections over much of northern tropical Africa. A moisture budget analysis is used to identify the circulation changes that support future precipitation anomalies. The projected midsummer drought over the Guinean Coast region is related partly to weakened monsoon flow. Since the rainfall maximum demonstrates a southward bias in the control simulation in July-August, this may be indicative of future summer drying over the Sahel. Wetter conditions in late summer over the Sahel are associated with enhanced moisture transport by the West African westerly jet, a strengthening of the jet itself, and moisture transport from the Mediterranean. Severe drought in East Africa during August and September is accompanied by a weakened Indian monsoon and Somali jet. Simulations with projected and idealized SST forcing suggest that overall SST warming in part supports this regional model ensemble agreement, although changes in SST gradients are important over West Africa in spring and fall. Simulations which isolate the role of individual climate forcings suggest that the spatial distribution of the rainfall predictions is controlled by the anomalous SST and lateral boundary conditions, while CO{sub 2} forcing within the regional model domain plays an important secondary role and generally produces wetter conditions. (orig.)

  11. Why 'class' is too soft a category to capture the explosiveness of social inequality at the beginning of the twenty-first century.

    Science.gov (United States)

    Beck, Ulrich

    2013-03-01

    We can distinguish four positions on the continuing, or maybe even increasing, relevance of the category of class at the beginning of the twenty-first century depending on the extent to which they accord central importance to (1) the reproduction or (2) the transformation of social classes with regard to (3) the distribution of goods without bads or (4) the distribution of goods and bads. One could say that Dean Curran introduces the concept of 'risk-class' to radicalize the class distribution of risk and charts who will able to occupy areas less exposed to risk and who will have little choice but to occupy areas that are exposed to the brunt of the fact of the risk society. As he mentioned it is important to note that this social structuring of the distribution of bads will be affected not only by class, but also by other forms of social structuration of disadvantage, such as gender and race. In order to demonstrate that the distribution of bads is currently exacerbating class differences in life chances, however, Curran concentrates exclusively on phenomena of individual risks. In the process, he overlooks the problem of systemic risks in relation of the state, science, new corporate roles, management the mass media, law, mobile capital and social movements; at the same time, his conceptual frame of reference does not really thematize the interdependence between individual and systemic risks. Those who reduce the problematic of risk to that of the life chances of individuals are unable to grasp the conflicting social and political logics of risk and class conflicts. Or, to put it pointedly: 'class' is too soft a category to capture the explosiveness of social inequality in world risk society. © London School of Economics and Political Science 2013.

  12. Future change of climate in South America in the late twenty-first century: intercomparison of scenarios from three regional climate models

    Science.gov (United States)

    Marengo, Jose A.; Ambrizzi, Tercio; Da Rocha, Rosmeri P.; Alves, Lincoln M.; Cuadra, Santiago V.; Valverde, Maria C.; Torres, Roger R.; Santos, Daniel C.; Ferraz, Simone E. T.

    2010-11-01

    Regional climate change projections for the last half of the twenty-first century have been produced for South America, as part of the CREAS (Cenarios REgionalizados de Clima Futuro da America do Sul) regional project. Three regional climate models RCMs (Eta CCS, RegCM3 and HadRM3P) were nested within the HadAM3P global model. The simulations cover a 30-year period representing present climate (1961-1990) and projections for the IPCC A2 high emission scenario for 2071-2100. The focus was on the changes in the mean circulation and surface variables, in particular, surface air temperature and precipitation. There is a consistent pattern of changes in circulation, rainfall and temperatures as depicted by the three models. The HadRM3P shows intensification and a more southward position of the subtropical Pacific high, while a pattern of intensification/weakening during summer/winter is projected by the Eta CCS/RegCM3. There is a tendency for a weakening of the subtropical westerly jet from the Eta CCS and HadRM3P, consistent with other studies. There are indications that regions such of Northeast Brazil and central-eastern and southern Amazonia may experience rainfall deficiency in the future, while the Northwest coast of Peru-Ecuador and northern Argentina may experience rainfall excesses in a warmer future, and these changes may vary with the seasons. The three models show warming in the A2 scenario stronger in the tropical region, especially in the 5°N-15°S band, both in summer and especially in winter, reaching up to 6-8°C warmer than in the present. In southern South America, the warming in summer varies between 2 and 4°C and in winter between 3 and 5°C in the same region from the 3 models. These changes are consistent with changes in low level circulation from the models, and they are comparable with changes in rainfall and temperature extremes reported elsewhere. In summary, some aspects of projected future climate change are quite robust across this set of

  13. Globalização social: desafio do século XXI GLOBALIZATION SOCIAL: CHALLENGE OF THE TWENTY-FIRST CENTURY

    Directory of Open Access Journals (Sweden)

    Antônio Carlos dos Santos

    2010-08-01

    Full Text Available A crítica de muitos à globalização é conseqüência dos rumos que ela está tomando. Embora a globalização seja um processo dinâmico em andamento, o seu avanço tem ocorrido de forma desequilibrada, gerando instabilidade política, econômica e social em várias regiões do planeta. O presente trabalho procura, de forma teórica, mostrar a falta da globalização social como um dos fatores que tem provocado desequilíbrio na dinâmica do processo de globalização. Pelo lado econômico, observa-se que a globalização ocorre de forma acelerada e já alcança os mais distantes pontos da face da Terra, ao passo que, pelo lado social, observa-se que a globalização está ausente em algumas regiões e, em outro tanto, ela ocorre de forma lenta e sem muito interesse. De nada vale os benefícios da globalização econômica se não existir a globalização social. Esse e o desafio do século XXI.The criticism of many of globalization is a consequence of directions it is taking. While globalization is a dynamic process in progress, its progress has occurred so unbalanced, creating politicalinstability, economic and social development in various regions of the planet. This paper demand, so theoretically, show the lack of social globalisation as one of the factors that have causedimbalance in the dynamics of the globalization process. On the economic side there is that globalization occurs so rapidly and have reached the most distant points of the face of theEarth, while the social side, there is that globalisation is absent in some regions, and in another both, it happens so slowly and without much interest. It is not worth the benefits of economicglobalization if there is the social globalisation. That and the challenge of the twenty-first century.

  14. Lights, camera, action research: The effects of didactic digital movie making on students' twenty-first century learning skills and science content in the middle school classroom

    Science.gov (United States)

    Ochsner, Karl

    Students are moving away from content consumption to content production. Short movies are uploaded onto video social networking sites and shared around the world. Unfortunately they usually contain little to no educational value, lack a narrative and are rarely created in the science classroom. According to new Arizona Technology standards and ISTE NET*S, along with the framework from the Partnership for 21st Century Learning Standards, our society demands students not only to learn curriculum, but to think critically, problem solve effectively, and become adept at communicating and collaborating. Didactic digital movie making in the science classroom may be one way that these twenty-first century learning skills may be implemented. An action research study using a mixed-methods approach to collect data was used to investigate if didactic moviemaking can help eighth grade students learn physical science content while incorporating 21st century learning skills of collaboration, communication, problem solving and critical thinking skills through their group production. Over a five week period, students researched lessons, wrote scripts, acted, video recorded and edited a didactic movie that contained a narrative plot to teach a science strand from the Arizona State Standards in physical science. A pretest/posttest science content test and KWL chart was given before and after the innovation to measure content learned by the students. Students then took a 21st Century Learning Skills Student Survey to measure how much they perceived that communication, collaboration, problem solving and critical thinking were taking place during the production. An open ended survey and a focus group of four students were used for qualitative analysis. Three science teachers used a project evaluation rubric to measure science content and production values from the movies. Triangulating the science content test, KWL chart, open ended questions and the project evaluation rubric, it

  15. Bridging the climate-induced water gap in the twenty-first century: adaptation support based on water supply, demand, adaptation and financing.

    Science.gov (United States)

    Straatsma, Menno; Droogers, Peter; Brandsma, Jaïrus; Buytaert, Wouter; Karssenberg, Derek; Van Beek, Rens; Wada, Yoshihide; Sutanudjaja, Edwin; Vitolo, Claudia; Schmitz, Oliver; Meijer, Karen; Van Aalst, Maaike; Bierkens, Marc

    2014-05-01

    Water scarcity affects large parts of the world. Over the course of the twenty-first century, water demand is likely to increase due to population growth and associated food production, and increased economic activity, while water supply is projected to decrease in many regions due to climate change. Despite recent studies that analyze the effect of climate change on water scarcity, e.g. using climate projections under representative concentration pathways (RCP) of the fifth assessment report of the IPCC (AR5), decision support for closing the water gap between now and 2100 does not exist at a meaningful scale and with a global coverage. In this study, we aimed (i) to assess the joint impact of climatic and socio-economic change on water scarcity, (ii) to integrate impact and potential adaptation in one workflow, (iii) to prioritize adaptation options to counteract water scarcity based on their financial, regional socio-economic and environmental implications, and (iv) to deliver all this information in an integrated user-friendly web-based service. To enable the combination of global coverage with local relevance, we aggregated all results for 1604 water provinces (food producing units) delineated in this study, which is five times smaller than previous food producing units. Water supply was computed using the PCR-GLOBWB hydrological and water resources model, parameterized at 5 arcminutes for the whole globe, excluding Antarctica and Greenland. We ran PCR-GLOBWB with a daily forcing derived from five different GCM models from the CMIP5 (GFDL-ESM2M, Hadgem2-ES, IPSL-CMA5-LR, MIROC-ESM-CHEM, NorESM1-M) that were bias corrected using observation-based WATCH data between 1960-1999. For each of the models all four RCPs (RCP 2.6, 4.5, 6.0, and 8.5) were run, producing the ensemble of 20 future projections. The blue water supply was aggregated per month and per water province. Industrial, domestic and irrigation water demands were computed for a limited number of

  16. Twenty-First Century Educational Theory and the Challenges of Modern Education: Appealing to the Heritage of the General Teaching Theory of the Secondary Educational Curriculum and the Learning Process

    Science.gov (United States)

    Klarin, Mikhail V.

    2016-01-01

    The article presents an analysis of educational theory in light of the challenges confronting education in the twenty-first century. The author examines how our ideas about the methods for managing the transmission of culture, the subject of education, and the consequences of these changes for the theory of education have changed. The author…

  17. IEEE 802.11 ECG monitoring system.

    Science.gov (United States)

    Tejero-Calado, Juan; Lopez-Casado, Carmen; Bernal-Martin, Antonio; Lopez-Gomez, Miguel; Romero-Romero, Marco; Quesada, Guillermo; Lorca, Julio; Rivas, Ramon

    2005-01-01

    New wireless technologies make possible the implementation of high level integration wireless devices which allow the replacement of traditional large wired monitoring devices. This kind of devices favours at-home hospitalization, reducing the affluence to sanitary assistance centers to make routine controls. This fact causes a really favourable social impact, especially for elder people, rural-zone inhabitant, chronic patients and handicapped people. Furthermore, it offers new functionalities to physicians and will reduce the sanitary cost. Among these functionalities, biomedical signals can be sent to other devices (screen, PDA, PC...) or processing centers, without restricting the patients' mobility. The aim of this project is the development and implementation of a reduced size multi-channel electrocardiograph based on IEEE 802.11, which allows wireless monitoring of patients, and the insertion of the information into the TCP/IP Hospital network.

  18. IEEE International Workshop on Machine Learning for Signal Processing: Preface

    DEFF Research Database (Denmark)

    Tao, Jianhua

    The 21st IEEE International Workshop on Machine Learning for Signal Processing will be held in Beijing, China, on September 18–21, 2011. The workshop series is the major annual technical event of the IEEE Signal Processing Society's Technical Committee on Machine Learning for Signal Processing...

  19. 1989 IEEE Aerospace Applications Conference, Breckenridge, CO, Feb. 12-17, 1989, Conference Digest

    Science.gov (United States)

    Recent advances in electronic devices for aerospace applications are discussed in reviews and reports. Topics addressed include large-aperture mm-wave antennas, a cross-array radiometer for spacecraft applications, a technique for computing the propagation characteristics of optical fibers, an analog light-wave system for improving microwave-telemetry data communication, and a ground demonstration of an orbital-debris radar. Consideration is given to a verifiable autonomous satellite control system, Inmarsat second-generation satellites for mobile communication, automated tools for data-base design and criteria for their selection, and a desk-top simulation work station based on the DSP96002 microprocessor chip.

  20. 1990 IEEE international conference on plasma science-Conference Record-Abstracts

    International Nuclear Information System (INIS)

    Anon.

    1990-01-01

    These proceedings present the state-of-the-art in plasma science. Special sections include space plasmas, Tokamaks, fusion experiments (IGNITEX), and magnetrons. The special theme of the meeting was high-current accelerators and their applications

  1. Performance comparison of IEEE 802.11g and IEEE 802.11n in the presence of interference from 802.15.4 networks

    OpenAIRE

    Masood, Syed Haani

    2013-01-01

    In this paper we compare the packet error rate (PER) and maximum throughput of IEEE 802.11n and IEEE 802.11g under interference from IEEE 802.15.4 by using MATLAB to simulate the IEEE PHY for 802.11n and 802.11g networks.

  2. Global Cropland Area Database (GCAD) derived from Remote Sensing in Support of Food Security in the Twenty-first Century: Current Achievements and Future Possibilities

    Science.gov (United States)

    Teluguntla, Pardhasaradhi G.; Thenkabail, Prasad S.; Xiong, Jun N.; Gumma, Murali Krishna; Giri, Chandra; Milesi, Cristina; Ozdogan, Mutlu; Congalton, Russ; Tilton, James; Sankey, Temuulen Tsagaan; Massey, Richard; Phalke, Aparna; Yadav, Kamini

    2015-01-01

    to biofuels (Bindraban et al., 2009), limited water resources for irrigation expansion (Turral et al., 2009), limits on agricultural intensifications, loss of croplands to urbanization (Khan and Hanjra, 2008), increasing meat consumption (and associated demands on land and water) (Vinnari and Tapio, 2009), environmental infeasibility for cropland expansion (Gordon et al., 2009), and changing climate have all put pressure on our continued ability to sustain global food security in the twenty-first century. So, how does the World continue to meet its food and nutrition needs?. Solutions may come from bio-technology and precision farming, however developments in these fields are not currently moving at rates that will ensure global food security over next few decades. Further, there is a need for careful consideration of possible harmful effects of bio-technology. We should not be looking back 30– 50 years from now, like we have been looking back now at many mistakes made during the green revolution. During the green revolution the focus was only on getting more yield per unit area. Little thought was put about serious damage done to our natural environments, water resources, and human health as a result of detrimental factors such as uncontrolled use of herbicides-pesticides-nutrients, drastic groundwater mining, and salinization of fertile soils due to over irrigation. Currently, there is talk of a “second green revolution” or even an “ever green revolution”, but clear ideas on what these terms actually mean are still debated and are evolving. One of the biggest issues that are not given adequate focus is the use of large quantities of water for food production. Indeed, an overwhelming proportion (60-90%) of all human water use in India goes for producing their food (Falkenmark, M., & Rockström, 2006). But such intensive water use for food production is no longer tenable due to increasing pressure for water use alternatives such as increasing urbanization

  3. A coexistence model of IEEE 802.15.4 and IEEE 802.1 lbIg

    NARCIS (Netherlands)

    Yuan, Wei; Wang, Xiangyu; Linnartz, J.P.M.G.

    2007-01-01

    IEEE 802.15.4 was developed to meet the needs for low-rate wireless communication. However, due to its low power, IEEE 802.15.4 is potentially vulnerable to interference by other wireless technologies having much higher power and working in the same industrial, scientific, and medical (ISM) band

  4. Active Channel Reservation for Coexistence Mechanism (ACROS) for IEEE 802.15.4 and IEEE 802.11

    Science.gov (United States)

    Shin, Soo Young; Woo, Dong Hyuk; Lee, Jong Wook; Park, Hong Seong; Kwon, Wook Hyun

    In this paper, a coexistence mechanism between IEEE 802.15.4 and IEEE 802.11b, Active Channel Reservation for cOexiStence (ACROS), is proposed. The key idea underlining ACROS is to reserve the channel for IEEE 802.15.4 transmission, where IEEE 802.11 transmissions are forbidden. The request-to-send (RTS)/clear-to send (CTS) mechanism within IEEE 802.11 is used to reserve a channel. The proposed ACROS mechanism is implemented into a PC based prototype. The embedded version of ACROS is also developed to mitigate the timing drift problem in the PC-based ACROS. The efficiency of ACROS is shown using the throughput and packet error rate achieved in actual experiments.

  5. Vispubdata.org: A Metadata Collection About IEEE Visualization (VIS) Publications.

    Science.gov (United States)

    Isenberg, Petra; Heimerl, Florian; Koch, Steffen; Isenberg, Tobias; Xu, Panpan; Stolper, Charles D; Sedlmair, Michael; Chen, Jian; Moller, Torsten; Stasko, John

    2017-09-01

    We have created and made available to all a dataset with information about every paper that has appeared at the IEEE Visualization (VIS) set of conferences: InfoVis, SciVis, VAST, and Vis. The information about each paper includes its title, abstract, authors, and citations to other papers in the conference series, among many other attributes. This article describes the motivation for creating the dataset, as well as our process of coalescing and cleaning the data, and a set of three visualizations we created to facilitate exploration of the data. This data is meant to be useful to the broad data visualization community to help understand the evolution of the field and as an example document collection for text data visualization research.

  6. Guest editors' introduction : Highlights from IEEE Pacific Visualization

    NARCIS (Netherlands)

    Wijk, van J.J.; North, S.; Shen, H.-W.

    2010-01-01

    This article looks briefly at four articles based on papers from the 2010 IEEE Pacific Visualization Symposium. These articles, which strongly focus on visual design and applications, cover a range of applications in scientific visualization, information visualization, and graph visualization,

  7. RE@21 spotlight: most influential papers from the requirements engineering conference

    NARCIS (Netherlands)

    Glinz, Martin; Wieringa, Roelf J.

    Since 2003, an award has been presented annually at the IEEE International Requirements Engineering Conference for the Most Influential Paper presented at the conference 10 years previously. In 2013, we celebrate 21 years of the Requirements Engineering Conference, and we use this as an opportunity

  8. Delay Analysis of GTS Bridging between IEEE 802.15.4 and IEEE 802.11 Networks for Healthcare Applications

    Science.gov (United States)

    Mišić, Jelena; (Sherman) Shen, Xuemin

    2009-01-01

    We consider interconnection of IEEE 802.15.4 beacon-enabled network cluster with IEEE 802.11b network. This scenario is important in healthcare applications where IEEE 802.15.4 nodes comprise patient's body area network (BAN) and are involved in sensing some health-related data. BAN nodes have very short communication range in order to avoid harming patient's health and save energy. Sensed data needs to be transmitted to an access point in the ward room using wireless technology with higher transmission range and rate such as IEEE 802.11b. We model the interconnected network where IEEE 802.15.4-based BAN operates in guaranteed time slot (GTS) mode, and IEEE 802.11b part of the bridge conveys GTS superframe to the 802.11b access point. We then analyze the network delays. Performance analysis is performed using EKG traffic from continuous telemetry, and we discuss the delays of communication due the increasing number of patients. PMID:19107184

  9. Delay Analysis of GTS Bridging between IEEE 802.15.4 and IEEE 802.11 Networks for Healthcare Applications.

    Science.gov (United States)

    Misić, Jelena; Sherman Shen, Xuemin

    2009-01-01

    We consider interconnection of IEEE 802.15.4 beacon-enabled network cluster with IEEE 802.11b network. This scenario is important in healthcare applications where IEEE 802.15.4 nodes comprise patient's body area network (BAN) and are involved in sensing some health-related data. BAN nodes have very short communication range in order to avoid harming patient's health and save energy. Sensed data needs to be transmitted to an access point in the ward room using wireless technology with higher transmission range and rate such as IEEE 802.11b. We model the interconnected network where IEEE 802.15.4-based BAN operates in guaranteed time slot (GTS) mode, and IEEE 802.11b part of the bridge conveys GTS superframe to the 802.11b access point. We then analyze the network delays. Performance analysis is performed using EKG traffic from continuous telemetry, and we discuss the delays of communication due the increasing number of patients.

  10. Simulasi Kinerja Jaringan Nirkabel IEEE-802.11a dan IEEE-802.11g Menggunakan NS-2

    Directory of Open Access Journals (Sweden)

    Helm Fitriawan

    2014-03-01

    Full Text Available Wireless network uses transmission media based on radio waves. This type of networks is mainly useddue to its efficiency and mobility in data exchanging. This paper reports the modeling and simulation of wirelessnetworks based on Cisco Aironet 1130ag access point devices with IEEE 802.11a and IEEE 802.11g standards. Themodeling and simulation are performed using network simulator version 2 (NS-2 that is installed on operationsystem Linux Ubuntu v.10.10. The NS-2 is commonly used and works well in numerous types of network simulation. From simulation, we obtain quality of service parameters by employing several simulation scenarios in terms ofnumber of nodes, distances, and packet data sizes. It can be concluded from simulation results that the IEEE 802.11gnetworks transfer data with better quality than those of IEEE 802.11a networks.  Furthermore, the IEEE 802.11gnetworks provide a higher throughput, with smaller amount of delay and packet loss percentage compared to thoseof IEEE 802.11a networks.

  11. IEEE Std 101-1987: IEEE guide for the statistical analysis of thermal life test data

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This revision of IEEE Std 101-1972 describes statistical analyses for data from thermally accelerated aging tests. It explains the basis and use of statistical calculations for an engineer or scientist. Accelerated test procedures usually call for a number of specimens to be aged at each of several temperatures appreciably above normal operating temperatures. High temperatures are chosen to produce specimen failures (according to specified failure criteria) in typically one week to one year. The test objective is to determine the dependence of median life on temperature from the data, and to estimate, by extrapolation, the median life to be expected at service temperature. This guide presents methods for analyzing such data and for comparing test data on different materials

  12. Performing the comic side of bodily abjection: A study of twenty-first century female stand-up comedy in a multi-cultural and multi-racial Britain

    OpenAIRE

    Blunden, Pamela

    2011-01-01

    This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University. This thesis is a socio-cultural study of the development of female stand-up comedy in the first decade of the twenty-first century within a multi-racial and multi-cultural Britain. It also engages with the theory and practice of performance and asks the question: ‘In what ways can it be said that female stand-up comics perform the comic side of bodily abjection?’ This question is applied to t...

  13. Fiber optics backbone for IEEE 802.3 networks

    Science.gov (United States)

    Shani, Ron

    1990-01-01

    In the last few years the IEEE 802.3 committee has developed fiber optics inter-repeater link standard called FOIRL. This standard defines the "Fiber Optics Media Access Unit" (FOMAU) which is used to connect two IEEE 802.3 repeaters that are up to 1Km apart. The IEEE 802.3 lOBaseF task force is currently standardizing a full F/O system in two directions: passive and active. The active approach is a compromise between the FOIRL (Asynchronous) approach and the Synchronous approach. As a result of this activity the IEEE 802.3 standard will define three different F/O interfaces and several devices that will not inter-operate. Such a standard will lower the credibility among the IEEE 802.3 user community, as customers will be confused amidst the many chapters and devices with no clear choice. This paper describes a method that can reduce the number of standards to two (passive and active), while proposing a solution for all the requirements of 802.3 F/O LAN. (The question of passive vs active approach will be discussed in this paper).

  14. Selected papers from the 2nd IEEEE Nordic Circuits and Systems Conference (NorCAS), 2016

    DEFF Research Database (Denmark)

    Sparsø, Jens

    2018-01-01

    This special issue includes selected papers from the 2nd IEEEE Nordic Circuits and Systems Conference (NorCAS), held in Linköping, Sweden, October 24-25, 2016. The IEEE NorCAS conference is the main circuits and systems event of the Nordic and Baltic countries representing both academia and the e......This special issue includes selected papers from the 2nd IEEEE Nordic Circuits and Systems Conference (NorCAS), held in Linköping, Sweden, October 24-25, 2016. The IEEE NorCAS conference is the main circuits and systems event of the Nordic and Baltic countries representing both academia...

  15. Twenty-First-Century Aerial Mining

    Science.gov (United States)

    2015-04-01

    blockade (fig. 3).19 It has two parallel inbound and outbound shipping channels, each 1,200 feet wide with a dredged depth averaging 40 feet. East...Sicily is a large island, Operation Husky required a stagger- ing logistical effort. Even had substantial losses occurred, Allied forces possessed...partially dependent on maritime logistics for trade and support to military operations, the renewed capability to deploy mines while maintaining

  16. Twenty-First Century Pathologists' Advocacy.

    Science.gov (United States)

    Allen, Timothy Craig

    2017-07-01

    Pathologists' advocacy plays a central role in the establishment of continuously improving patient care quality and patient safety, and in the maintenance and progress of pathology as a profession. Pathology advocacy's primary goal is the betterment of patient safety and quality medical care; however, payment is a necessary and appropriate component to both, and has a central role in advocacy. Now is the time to become involved in pathology advocacy; the Medicare Access and Children's Health Insurance Program (CHIP) Reauthorization Act of 2015 (MACRA) and the Protecting Access to Medicare Act of 2014 (PAMA) are 2 of the most consequential pieces of legislation impacting the pathology and laboratory industry in the last 20 years. Another current issue of far-reaching impact for pathologists is balance billing, and yet many pathologists have little or no understanding of balance billing. Pathologists at all stages of their careers, and in every professional setting, need to participate. Academic pathologists have a special obligation to, if not become directly involved in advocacy, at least have a broad and current understanding of those issues, as well as the need and responsibility of pathologists to actively engage in advocacy efforts to address them, in order to teach residents the place of advocacy, and its value, as an inseparable and indispensable component of their professional responsibilities.

  17. Departmentalization and Twenty-First Century Skills

    Science.gov (United States)

    Watts, Toy Coles

    2012-01-01

    The purpose of this study was to investigate the relationship between school organizational style and student outcomes. The research questions that guided this study were, "Is there a difference in mathematical performance of fourth graders who receive departmentalized instruction as compared to fourth grade students who receive…

  18. Educating for the Twenty-First Century

    Science.gov (United States)

    Ramaley, Judith A.

    2013-01-01

    In his first inaugural speech, President Obama declared that "our schools fail too many" and an essential component of laying "a new foundation for growth" will be "to transform our schools and colleges and universities to meet the demands of a new age." Concerns about our nation's position in the global education race have led to a focus on…

  19. 2008 Special NSREC Issue of the IEEE Transactions on Nuclear Science Comments by the Editors

    Science.gov (United States)

    Schwank, Jim; Buchner, Steve; Marshall, Paul; Duzellier, Sophie; Brown, Dennis; Poivey, Christian; Pease, Ron

    2008-12-01

    The December 2008 special issue of the IEEE Transactions on Nuclear Science contains selected papers from the 45th annual IEEE International Nuclear and Space Radiation Effects Conference (NSREC) held in Tucson, Arizona, July 14 - 18, 2008. Over 115 papers presented at the 2008 NSREC were submitted for consideration for this year's special issue. Those papers that appear in this special issue were able to successfully complete the review process before the deadline for the December issue. A few additional papers may appear in subsequent issues of the TRANSACTIONS. This publication is the premier archival journal for research on space and nuclear radiation effects in materials, devices, circuits, and systems. This distinction is the direct result of the conscientious efforts of both the authors, who present and document their work, and the reviewers, who selflessly volunteer their time and talent to help review the manuscripts. Each paper in this journal has been reviewed by experts selected by the editors for their expertise and knowledge of the particular subject areas.

  20. Application of the Intervention Mapping Framework to Develop an Integrated Twenty-first Century Core Curriculum-Part Two: Translation of MPH Core Competencies into an Integrated Theory-Based Core Curriculum.

    Science.gov (United States)

    Corvin, Jaime A; DeBate, Rita; Wolfe-Quintero, Kate; Petersen, Donna J

    2017-01-01

    In the twenty-first century, the dynamics of health and health care are changing, necessitating a commitment to revising traditional public health curricula to better meet present day challenges. This article describes how the College of Public Health at the University of South Florida utilized the Intervention Mapping framework to translate revised core competencies into an integrated, theory-driven core curriculum to meet the training needs of the twenty-first century public health scholar and practitioner. This process resulted in the development of four sequenced courses: History and Systems of Public Health and Population Assessment I delivered in the first semester and Population Assessment II and Translation to Practice delivered in the second semester. While the transformation process, moving from traditional public health core content to an integrated and innovative curriculum, is a challenging and daunting task, Intervention Mapping provides the ideal framework for guiding this process. Intervention mapping walks the curriculum developers from the broad goals and objectives to the finite details of a lesson plan. Throughout this process, critical lessons were learned, including the importance of being open to new ideologies and frameworks and the critical need to involve key-stakeholders in every step of the decision-making process to ensure the sustainability of the resulting integrated and theory-based curriculum. Ultimately, as a stronger curriculum emerged, the developers and instructors themselves were changed, fostering a stronger public health workforce from within.

  1. Application of the Intervention Mapping Framework to Develop an Integrated Twenty-First Century Core Curriculum-Part 1: Mobilizing the Community to Revise the Masters of Public Health Core Competencies.

    Science.gov (United States)

    DeBate, Rita; Corvin, Jaime A; Wolfe-Quintero, Kate; Petersen, Donna J

    2017-01-01

    Twenty-first century health challenges have significantly altered the expanding role and functions of public health professionals. Guided by a call from the Association of Schools and Programs of Public Health's (ASPPH) and the Framing the Future: The Second 100 Years of Education for Public Health report to adopt new and innovative approaches to prepare public health leaders, the University of South Florida College of Public Health aimed to self-assess the current Masters of Public Health (MPH) core curriculum with regard to preparing students to meet twenty-first century public health challenges. This paper describes how Intervention Mapping was employed as a framework to increase readiness and mobilize the COPH community for curricular change. Intervention Mapping provides an ideal framework, allowing organizations to access capacity, specify goals, and guide the change process from curriculum development to implementation and evaluation of competency-driven programs. The steps outlined in this paper resulted in a final set of revised MPH core competencies that are interdisciplinary in nature and fulfill the emergent needs to address changing trends in both public health education and challenges in population health approaches. Ultimately, the competencies developed through this process were agreed upon by the entire College of Public Health faculty, signaling one college's readiness for change, while providing the impetus to revolutionize the delivery of public health education at the University of South Florida.

  2. Implicit Block ACK Scheme for IEEE 802.11 WLANs

    Science.gov (United States)

    Sthapit, Pranesh; Pyun, Jae-Young

    2016-01-01

    The throughput of IEEE 802.11 standard is significantly bounded by the associated Medium Access Control (MAC) overhead. Because of the overhead, an upper limit exists for throughput, which is bounded, including situations where data rates are extremely high. Therefore, an overhead reduction is necessary to achieve higher throughput. The IEEE 802.11e amendment introduced the block ACK mechanism, to reduce the number of control messages in MAC. Although the block ACK scheme greatly reduces overhead, further improvements are possible. In this letter, we propose an implicit block ACK method that further reduces the overhead associated with IEEE 802.11e’s block ACK scheme. The mathematical analysis results are presented for both the original protocol and the proposed scheme. A performance improvement of greater than 10% was achieved with the proposed implementation.

  3. IEEE guide for the analysis of human reliability

    International Nuclear Information System (INIS)

    Dougherty, E.M. Jr.

    1987-01-01

    The Institute of Electrical and Electronics Engineers (IEEE) working group 7.4 of the Human Factors and Control Facilities Subcommittee of the Nuclear Power Engineering Committee (NPEC) has released its fifth draft of a Guide for General Principles of Human Action Reliability Analysis for Nuclear Power Generating Stations, for approval of NPEC. A guide is the least mandating in the IEEE hierarchy of standards. The purpose is to enhance the performance of an human reliability analysis (HRA) as a part of a probabilistic risk assessment (PRA), to assure reproducible results, and to standardize documentation. The guide does not recommend or even discuss specific techniques, which are too rapidly evolving today. Considerable maturation in the analysis of human reliability in a PRA context has taken place in recent years. The IEEE guide on this subject is an initial step toward bringing HRA out of the research and development arena into the toolbox of standard engineering practices

  4. 2012 Special NSREC Issue of the IEEE Transactions on Nuclear Science Comments by the Editors

    Science.gov (United States)

    Schwank, Jim; Brown, Dennis; Girard, Sylvain; Gouker, Pascale; Gerardin, Simone; Quinn, Heather; Barnaby, Hugh

    2012-12-01

    The December 2012 special issue of the IEEE Transactions on Nuclear Science contains selected papers from the 49th annual IEEE International Nuclear and Space Radiation Effects Conference (NSREC) held July 16-20, 2012, in Miami, Florida USA. 95 papers presented at the 2012 NSREC were submitted for consideration for this year’s special issue. Those papers that appear in this special issue were able to successfully complete the review process before the deadline for the December issue. A few additional papers may appear in subsequent issues of the TRANSACTIONS. This publication is the premier archival journal for research on space and nuclear radiation effects in materials, devices, circuits, and systems. This distinction is the direct result of the conscientious efforts of both the authors, who present and document their work, and the reviewers, who selflessly volunteer their time and talent to help review the manuscripts. Each paper in this journal has been reviewed by experts selected by the editors for their expertise and knowledge of the particular subject areas. The peer review process for a typical technical journal generally takes six months to one year to complete. To publish this special issue of the IEEE Transactions on Nuclear Science (in December), the review process, from initial submission to final form, must be completed in about 10 weeks. Because of the short schedule, both the authors and reviewers are required to respond very quickly. The reviewers listed on the following pages contributed vitally to this quick-turn review process.We would like to express our sincere appreciation to each of them for accepting this difficult, but critical role in the process. To provide consistent reviews of papers throughout the year, the IEEE Transactions on Nuclear Science relies on a year-round editorial board that manages reviews for submissions throughout the year to the TRANSACTIONS in the area of radiation effects. The review process is managed by a Senior

  5. Conference comments by the Editors

    Science.gov (United States)

    Zhao, Jing-Tai; Nikl, Martin; Williams, Richard T.; Auffray, Etiennette; Bizarri, Greg; Gu, Mu; Nagirnyi, Vitali; Pejchal, Jan; Sidletskiy, Oleg; Vedda, Anna

    2014-02-01

    The international community of researchers on fundamentals, development, and applications of inorganic scintillator materials has found the biennial meetings of the SCINT series to be an excellent chance to exchange data and ideas. These can range from very basic physical concepts and atomistic mechanisms in the materials under study up to truly application-minded tasks and problems defined by the modern needs for radiation detection, imaging, and spectroscopy of many kinds. The 12th International Conference on Inorganic Scintillators and their Applications (SCINT 2013) was organized by the Shanghai Institute of Ceramics, Chinese Academy of Sciences, in Shanghai, April 15-19, 2013. There were in total 180 scientific contributions, 85 oral presentations, 17 invited talks, and 95 poster exhibitions presented by 147 participants from 18 different countries. This special issue of the IEEE TRANSACTIONS ON NUCLEAR SCIENCE comprises the selected and refereed original works based on the SCINT 2013 presentations, altogether 51 papers. The conference was technically and financially co-sponsored by the Chinese Academy of Sciences, and Nuclear and Plasma Sciences Society (IEEE). The SCINT 2013 conference organizers acknowledge with deep thanks also the sponsorship and support of seven domestic and foreign industrial companies participating in the conference exhibition.

  6. IEEE prize awarded to CERN PhD student

    CERN Multimedia

    2006-01-01

    Rafael Ballabriga Suñe is the recipient of the 2006 Institute of Electrical and Electronics Engineers, Inc. (IEEE) Nuclear and Plasma Sciences Society (NPSS)'s Student Paper Award. Ballabriga's winning paper reported on a prototype chip, which belongs to a new generation of single photon counting hybrid pixel detector readout chips - Medipix3. The award was presented by the deputy programme chair Vince Cianciolo (left) at the IEEE Nuclear Science Symposium held in San Diego on 29 October to 4 November.

  7. 2nd International Conference on Advanced Intelligent Systems and Informatics

    CERN Document Server

    Shaalan, Khaled; Gaber, Tarek; Azar, Ahmad; Tolba, M

    2017-01-01

    This book gathers the proceedings of the 2nd International Conference on Advanced Intelligent Systems and Informatics (AISI2016), which took place in Cairo, Egypt during October 24–26, 2016. This international interdisciplinary conference, which highlighted essential research and developments in the field of informatics and intelligent systems, was organized by the Scientific Research Group in Egypt (SRGE) and sponsored by the IEEE Computational Intelligence Society (Egypt chapter) and the IEEE Robotics and Automation Society (Egypt Chapter). The book’s content is divided into four main sections: Intelligent Language Processing, Intelligent Systems, Intelligent Robotics Systems, and Informatics.

  8. IEEE C37.98-1987: IEEE standard seismic testing of relays

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This standard specifies the procedures to be used in the seismic testing of relays used in power system facilities. The standard is concerned with the determination of the seismic fragility level of relays and also gives recommendations for proof testing. The purpose of this standard is to establish procedures for determining the seismic capabilities of protective and auxiliary relays. These procedures employ what has been called fragility testing in IEEE Std 344-1987. To define the conditions for fragility testing of relays, parameters in three separate areas must be specified. In general, they are (1) the electrical settings and inputs to the relay, and other information to define its conditions during the test; (2) the change in state, deviation in operating characteristics or tolerances, or other change of performance of the relay that constitutes failure; (3) the seismic vibration environment to be imposed during the test. Since it is not possible to define the conditions for every conceivable application for all relays, those parameters, which in practice encompass the majority of applications, have been specified in this standard. When the application of the relay is other than as specified under any of (1), (2), and (3), or if it is not practical to apply existing results of fragility tests to that new application, then proof testing must be performed for that new case

  9. IEEE C37.98-1978: IEEE standard seismic testing of relays

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This standard specifies the procedures to be used in the seismic testing of relays used in power system facilities. The standard is concerned with the determination of the seismic fragility level of relays and also gives recommendations for proof testing. The purpose of this standard is to establish procedures for determining the seismic capabilities of protective and auxiliary relays. These procedures employ what has been called fragility testing in ANSI/IEEE Std 344-1975, Recommended Practices for Seismic Qualification of Class 1E Equipment for Nuclear Power Generating Stations. In order to define the conditions for fragility testing of relays, parameters in three separate areas must be specified. In general they are: (1) the electrical settings and inputs to the relay, and other information to define its conditions during the test; (2) the change in state, deviation in operating characteristics or tolerances, or other change of performance of the relay which constitutes failure; (3) the seismic vibration environment to be imposed during the test. Since it is not possible to define the conditions for every conceivable application for all relays, those parameters, which in practice encompass the majority of applications, have been specified in this standard. When the application of the relay is other than as specified under any of (1), (2), and (3), or if it is not practical to apply existing results of fragility tests to that new case

  10. Editorial for the IEEE Transactions on Power Electronics, January 2009

    DEFF Research Database (Denmark)

    Blaabjerg, Frede

    2009-01-01

    I am entering the fourth year as the Editor in Chief of the IEEE TRANSACTIONS ON POWER ELECTRONICS. A position like this becomes more and more important for the technical field as publishing in a peer-reviewed highly ranked journal has influence on the industrial and academic career. It is a way...

  11. Eleanor McElwee and the Formation of IEEE PCS

    Science.gov (United States)

    Malone, Edward A.

    2015-01-01

    This article examines the historical professional project that created the Institute of Radio Engineers' Professional Group on Engineering Writing an Speech (IRE PGEWS)--now called the Institute of Electrical and Electronics Engineers' Professional Communication Society (IEEE PCS)--and recounts the group's early history in detail. It also traces…

  12. 0011-0030.Data Representation amp Computer Arithmetic6 IEEE ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; reso; 021; 01; 0011-0030.Data Representation amp Computer Arithmetic6 IEEE Standard Double Precision FormatIn.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News.

  13. THE DISPUTE BETWEEN POLITICAL THEOLOGY AND THE POLITICS OF THEOLOGY IN THE TWENTY-FIRST CENTURY ON THE MEANINGS OF THE POSTMODERN GLOBALIZING AND INDIVIDUALISTIC SOCIETY AND THE CHRISTIAN PERSONALIST GLOBALITY

    Directory of Open Access Journals (Sweden)

    Stelian MANOLACHE

    2016-05-01

    Full Text Available Upon the dawn of postmodernity, in the twenty-first century, we witness the emergence of a new way of thinking and of new forms of culture and life, under the ideology of globalism, whose dominance is given by the practicality and utility related to civilization, and under globality, which is the cultural aspect of globalization, pertaining to the field of culture. The two dimensions of globalization and globality, civilizational and cultural, will (requestion the principle relationship between Christianity and the new postmodern globalizing utopia, requiring to (reconsider the sense and presence of Christianity within the world, and the appropriate sociological figure of the Church, within the new reality of global and globalized humanity, in the postmodern public space. This paper deals with this ideology - globalism and the cultural manifestation of globality, and with the Orthodox answer to the new challenge of individualism and postmodern globalizing (neocollectivism.

  14. Changes in seasonal and diurnal precipitation types during summer over South Korea in the late twenty-first century (2081-2100) projected by the RegCM4.0 based on four RCP scenarios

    Science.gov (United States)

    Oh, Seok-Geun; Suh, Myoung-Seok

    2018-01-01

    Changes in seasonal and diurnal precipitation types over South Korea during summer in the late twenty-first century (2081-2100) were projected under four RCP scenarios using the Regional Climate Model (RegCM4.0) with a horizontal resolution of 12.5 km. Two boundary conditions, ERA-Interim and HadGEM2-AO, were used to drive the RegCM4.0 (jointly named RG4_ERA and RG4_HG2, respectively). In general, the RegCM4.0 reproduces the spatial distribution of summer precipitation over Northeast Asia for the current climate (1989-2008) reasonably well. The RG4_HG2 shows larger dry biases over South Korea, when compared with observations, than does the RG4_ERA. These strong dry biases result from the underestimation of convective precipitation (CPR) and are particularly noticeable in late afternoons during July and August. It is related to the performance of HadGEM2-AO which simulated southwesterly winds weakly in that time. However, interestingly, the RG4_HG2 simulates similar increases in the contribution of CPR to total precipitation after mid-July, resulting in comparable performance in the reproduction of heavy precipitation. In the late twenty-first century, a significant increase (decrease) in CPR (NCPR) is generally projected over South Korea, and particularly under the RCP8.5. During June, the total precipitation is affected primarily by changes in NCPR under RCP2.6 and RCP6.0. After mid-July, increasing total precipitation is primarily caused by the distinct increases in CPR in the late afternoons; this pattern is particularly noticeable under RCP8.5, which is associated with more destabilized atmospheric conditions during July and August. Light and heavy precipitation are projected to decrease and increase, respectively, under RCP8.5.

  15. Qualification test of Class 1E equipment based on IEEE323 Std 2003

    International Nuclear Information System (INIS)

    Kim, J. S.; Jung, S. C.; Kim, T. R.

    2004-01-01

    IEEE Standard for Qualifying Class 1E Equipment has been updated to 2003 edition since the issue of IEEE Std 323-1971, 1974, 1983. NRC approved the IEEE Std 323-1974 as Qualification standard of Class 1E Equipment in domestic nuclear power plant. IEEE Std 323-2003 was issued in September of 2003 and utility is waiting the approval of NRC. IEEE Std 323-2003 suggest a new qualification technique which adopts the condition monitoring. Performance of two transient during DBA test is no longer recommended in IEEE Std 323-2003. IEEE323 Std 2003 included a chapter of ''extension of Qualified life'' to make available the life extension of components during plant life extension. For the efficient control of preserving EQ in domestic nuclear power plant, IEEE323 Std 2003 is strongly recommended

  16. Real Time Conference 2016 Overview

    Science.gov (United States)

    Luchetta, Adriano

    2017-06-01

    This is a special issue of the IEEE Transactions on Nuclear Science containing papers from the invited, oral, and poster presentation of the 20th Real Time Conference (RT2016). The conference was held June 6-10, 2016, at Centro Congressi Padova “A. Luciani,” Padova, Italy, and was organized by Consorzio RFX (CNR, ENEA, INFN, Università di Padova, Acciaierie Venete SpA) and the Istituto Nazionale di Fisica Nucleare. The Real Time Conference is multidisciplinary and focuses on the latest developments in real-time techniques in high-energy physics, nuclear physics, astrophysics and astroparticle physics, nuclear fusion, medical physics, space instrumentation, nuclear power instrumentation, general radiation instrumentation, and real-time security and safety. Taking place every second year, it is sponsored by the Computer Application in Nuclear and Plasma Sciences technical committee of the IEEE Nuclear and Plasma Sciences Society. RT2016 attracted more than 240 registrants, with a large proportion of young researchers and engineers. It had an attendance of 67 students from many countries.

  17. Women in biomedical engineering and health informatics and its impact on gender representation for accepted publications at IEEE EMBC 2007.

    Science.gov (United States)

    McGregor, Carolyn; Smith, Kathleen P; Percival, Jennifer

    2008-01-01

    The study of women within the professions of Engineering and Computer Science has consistently been found to demonstrate women as a minority within these professions. However none of that previous work has assessed publication behaviours based on gender. This paper presents research findings on gender distribution of authors of accepted papers for the IEEE Engineering and Medicine Society annual conference for 2007 (EMBC '07) held in Lyon, France. This information is used to present a position statement of the current state of gender representation for conference publication within the domain of biomedical engineering and health informatics. Issues in data preparation resulting from the lack of inclusion of gender in information gathered from accepted authors are presented and discussed.

  18. Introduction to IEEE Std. 7-4.3.2 Annex D -- ''Qualification of existing commercial computers''

    International Nuclear Information System (INIS)

    Holmstrom, K.J.

    1995-01-01

    On September 15th of 1993 the IEEE standards board approved IEEE Std. 7-4.3.2-1993, IEEE Standard for Digital Computers in Safety Systems of Nuclear Power Generating Stations. This paper is an introduction to Annex D of this document which concerns the commercial grade dedication of existing computers or new non-1E computers

  19. IEEE C37.82-1987: IEEE standard for the qualification of switchgear assemblies for Class 1E applications in nuclear power generating stations

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This document describes the methods and requirements for qualifying switchgear assemblies for indoor areas outside of the containment in nuclear power generating stations. These assemblies include (1) metal-enclosed low-voltage power circuit breaker switchgear assemblies, as defined in ANSI/IEEE C37.20.1-1987, (2) metal-clad switchgear assemblies, as defined in ANSI/IEEE C37.20.2-1987, (3) metal-enclosed bus, as defined in ANSI/IEEE C37.23-1987, and (4) metal-enclosed interrupter switchgear assemblies, as defined in ANSI/IEEE C37.20.3-1987. The purpose of this document is to provide amplification of the general requirements of ANSI/IEEE Std 323-1983 as they apply to the specific features of Class 1E switchgear assemblies. Where differences exist between this document and ANSI/IEEE Std 323-1983, this document takes precedence insofar as switchgear assemblies are concerned

  20. Nuclear Future is Ten Years Old. Innovative Nuclear Technology Celebrates Anniversary at General Conference

    International Nuclear Information System (INIS)

    Verlini, Giovanni

    2011-01-01

    IAEA-led International Project on Innovative Nuclear Reactors and Fuel Cycles (INPRO) marked today its tenth anniversary with a ceremony held on the opening day of the IAEA's annual General Conference. INPRO was established in 2000 to ensure that sustainable nuclear energy is available to meet the energy needs of the twenty-first century.

  1. IEEE prize awarded to CERN PhD student

    CERN Multimedia

    2006-01-01

    Rafael Ballabriga Suñe (right) receives the Student Paper Award. Rafael Ballabriga Suñe is the recipient of the 2006 Institute of Electrical and Electronics Engineers, Inc. (IEEE) Nuclear and Plasma Sciences Society (NPSS)'s Student Paper Award. Ballabriga's winning paper reported on a prototype chip, which belongs to a new generation of single photon counting hybrid pixel detector readout chips - Medipix3. The NPSS established this award in 2005 to encourage outstanding student contributions and greater student participation as principle or sole authors of papers. The prizes were presented at the IEEE Nuclear Science Symposium held in San Diego on 29 October to 4 November. The prototype chip was designed by Ballabriga based on ideas generated within the CERN Medipix team - part of the PH Microelectronics group. It could be used in various fields in the future, including medical imaging, neutron imaging, electron microscopy, radiation monitoring and other applications in high-energy physics. The novel aspe...

  2. IEEE 802.3 Fiber Optic Inter-Repeater Link

    Science.gov (United States)

    Tarrant, Peter J.

    1987-01-01

    This paper describes the implementation of a fiber optic inter-repeater link (FOIRL), used for connecting two remote copper segments of an IEEE 802.3 local area network. The rationale for the design, the signalling used and the collision detection mechanism is discussed. The evolution of the draft international standard for the FOIRL and the concurrence amongst various manufacturers is also presented. Finally some examples of typical applications, highlighting the ease of installation, are given.

  3. Basic security measures for IEEE 802.11 wireless networks

    OpenAIRE

    Sarmiento, Oscar P.; Guerrero, Fabio G.; Rey Argote, David

    2008-01-01

    This article presents a tutorial/discussion of three commonly-used IEEE 802.11 wireless network security standards: WEP, WPA and WPA2. A detailed analysis of the RC4 algorithm supporting WEP is presented, including its vulnerabilities. The WPA and WPA2 encryption protocols’ most relevant aspects and technical characteristics are reviewed for a comparative analysis of the three standards in terms of the security they provide. Special attention has been paid to WEP encryption by using an educat...

  4. Ghana Chemical Society eleventh national annual conference

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-12-01

    The publication contains the programme and abstracts of the eleventh annual conference of the Ghana Chemical Society. The aim of the conference was to examine the role of chemistry and the strategic role of chemistry practitioners in the overall development of Ghana in the twenty first century. Abstracts presented have been grouped in the following order: welcome address, professional lecture on the future direction of the Ghana Chemical Society, conference programme, plenary lectures on the role of chemistry in the critical areas of the economy such as energy, environment, education, health, agriculture, special seminar on chemistry and society highlighting the role of chemistry in fire prevention, crime detection, water quality, customs operations, scientific papers and selected industrial processes. A total of twenty five abstracts have been presented. (E.A.A)

  5. Ghana Chemical Society eleventh national annual conference

    International Nuclear Information System (INIS)

    1998-01-01

    The publication contains the programme and abstracts of the eleventh annual conference of the Ghana Chemical Society. The aim of the conference was to examine the role of chemistry and the strategic role of chemistry practitioners in the overall development of Ghana in the twenty first century. Abstracts presented have been grouped in the following order: welcome address, professional lecture on the future direction of the Ghana Chemical Society, conference programme, plenary lectures on the role of chemistry in the critical areas of the economy such as energy, environment, education, health, agriculture, special seminar on chemistry and society highlighting the role of chemistry in fire prevention, crime detection, water quality, customs operations, scientific papers and selected industrial processes. A total of twenty five abstracts have been presented. (E.A.A)

  6. Coexistence of IEEE 802.11b/g WLANs and IEEE 802.15.4 WSNs : Modeling and Protocol Enhancements

    NARCIS (Netherlands)

    Yuan, W.

    2011-01-01

    As an emerging short-range wireless technology, IEEE 802.15.4/ZigBee Wireless Sensor Networks (WSNs) are increasingly used in the fields of home control, industrial control, consumer electronics, energy management, building automation, telecom services, personal healthcare, etc. IEEE

  7. Editorial: Conference Comments by the General Chair

    Science.gov (United States)

    LaBel, Ken

    2012-12-01

    An overview is presented of the 49th Annual International Nuclear and Space Radiation Effects Conference (NSREC), held July 16-20, 2012 at the InterContinental Hotel in downtown Miami, Florida, USA. The 2012 Conference followed previous editions as an international radiation effects on electronics, materials, and systems showcase. The conference was sponsored by the Radiation Effects Committee of the IEEE Nuclear and Plasma Sciences Society. In addition, NSREC was supported by a cadre of government agencies and industry members. The 2012 edition of the conference was attended by 607 members of the radiation effects community. Of this number, 118 non-US attendees participated from 20 different countries with particularly strong attendance from France, United Kingdom, Japan, Canada, and Germany. Total attendance including exhibitors and guests was 802 people.

  8. Status of the IEEE P896 Future Backplane Bus

    International Nuclear Information System (INIS)

    Gustavson, D.B.

    1983-10-01

    The IEEE P896 Future Backplane Bus project has been influenced by and has influenced FASTBUS and several other contemporary bus designs. This paper summarizes the current status of that project, which is directed toward the needs of modern 32-bit microprocessor systems with multiple processors. Some of the technology developed for P896 will be important for future non-ECL implementations of FASTBUS and other buses. In particular, new bus drivers and receivers should greatly improve the performance and reliability of backplane buses and cable buses. The current status of the P896 serial bus is also summarized

  9. IEEE Conference Record of 1976 Twelfth Modulator Symposium, New York City, 4-5 February 1976.

    Science.gov (United States)

    1976-01-01

    volt, 7 ampere compactness, no standby power, and competitive economi - rms, thyristor in a TO-S can) was also considered. cally. Correspondence with...VI V, J* t2 OA WN.T18 MM EGMLS WMPL MW .TAE Fts Puuu 2B - GeEMTinn nP CLOSEY WACED PULSE BY A SHAM. SCRTNAEY IIIs~ 2 T Sv1 cAi 4.-JI j 1f -W J1YL’ LJ

  10. Proceedings of the 19th (1988) annual IEEE power electronics specialists conference

    International Nuclear Information System (INIS)

    Anon.

    1988-01-01

    These proceedings compile papers on power electronics. Topics include: Superconducting Magnetic Energy Storage (SMES); Power control experiments with SMES; Quench protection at cryogenic temperatures; Power system stabilization by SMES; compensation of industrial load variation with SMES; high voltage power supplies with photovoltaic cell arrays; and simulation of photovoltaic systems

  11. Proceedings of the ninth annual conference of the IEEE Engineering in Medicine and Biology Society

    International Nuclear Information System (INIS)

    Anon.

    1987-01-01

    This book contains over 100 papers. Some of the titles are: Angular integrations and inter-projections correlation effects in CT reconstruction; Supercomputing environment for biomedical research; Program towards a computational molecular biology; Current problems in molecular biology computing; Signal averaging applied to positron emission tomography; First experimental results from a high spatial resolution PET prototype; and A coherent approach in computer-aided radiotherapy

  12. Extending Service Area of IEEE 802.11 Ad Hoc Networks

    Science.gov (United States)

    Choi, Woo-Yong

    2012-06-01

    According to the current IEEE 802.11 wireless LAN standards, IEEE 802.11 ad hoc networks have the limitation that all STAs (Stations) are in the one-hop transmission range of each other. In this paper, to alleviate the limitation of IEEE 802.11 ad hoc networks we propose the efficient method for selecting the most appropriate pseudo AP (Access Point) from among the set of ad hoc STAs and extending the service area of IEEE 802.11 ad hoc networks by the pseudo AP's relaying the internal traffic of IEEE 802.11 ad hoc networks. Numerical examples show that the proposed method significantly extends the service area of IEEE 802.11 ad hoc networks.

  13. IEEE Std 649-1991: IEEE standard for qualifying Class 1E motor control centers for nuclear power generating stations

    International Nuclear Information System (INIS)

    Anon.

    1993-01-01

    The basic principles, requirements, and methods for qualifying Class 1E motor control centers for both harsh and mild environment applications in nuclear power generating stations are described. In addition to defining specific qualification requirements for Class 1E motor control centers and their components in accordance with the more general qualification requirements of IEEE Std 323-1983, this standard is intended to provide guidance in establishing a qualification program for demonstrating the adequacy of Class 1E motor control centers in nuclear power generating station applications

  14. IEEE Standard for qualification of Class 1E lead storage batteries for nuclear power generating stations

    International Nuclear Information System (INIS)

    Anon.

    1980-01-01

    This document describes qualification methods for Class 1E lead storage batteries and racks to be used in nuclear power generating stations outside of primary containment. Qualification required in ANSI/IEEE Std 279-1979 and IEEE Std 308-1978, can be demonstrated by using the procedures provided in this Standard in accordance with IEEE Std 323-1974. Battery sizing, maintenance, capacity testing, installation, charging equipment and consideration of other types batteries are beyond the scope of this Standard

  15. IEEE standard for qualification of class 1E lead storage batteries for nuclear power generating stations

    International Nuclear Information System (INIS)

    Anon.

    1979-01-01

    IEEE Std 323-1974, Standard for Qualifying Class 1E Equipment for Nuclear Power Generating Stations, was developed to provide guidance for demonstrating and documenting the adequacy of electrical equipment used in all Class 1E and interface systems. This standard, IEEE Std 535-1979, was developed to provide specific methods and type test procedures for lead storage batteries in reference to IEEE Std 323-1974

  16. Report on the 2005 Particle Accelerator Conference (PAC05)

    International Nuclear Information System (INIS)

    Kathy F. Rosenbalm

    2005-01-01

    The 21st Particle Accelerator Conference, PAC05, took place at the Knoxville Convention Center (KCC) from Monday through Friday, May 16-20, 2005. Sponsored by the American Physical Society (APS), the Institute of Electrics and Electronics Engineers (IEEE) with its subdivision of Nuclear and Plasma Sciences Society (NPSS), the conference was hosted by the Oak Ridge National Laboratory (ORNL) Spallation Neutron Source (SNS) Project and Thomas Jefferson National Accelerator Facility (JLab). The conference was chaired by Norbert Holtkamp, and the Local Organizing Committee was made up of staff from the ORNL SNS Project under the chairmanship of Stuart Henderson. The conference welcomed over 1400 delegates from the United States, Europe, Asia, the Middle East, South America and from as far away as Australia. Almost 1400 papers where processed during the conference and will be published on the Joint Accelerator Conferences Website (JACoW) page

  17. Proceedings of the IEEE Machine Learning for Signal Processing XVII

    DEFF Research Database (Denmark)

    The seventeenth of a series of workshops sponsored by the IEEE Signal Processing Society and organized by the Machine Learning for Signal Processing Technical Committee (MLSP-TC). The field of machine learning has matured considerably in both methodology and real-world application domains and has...... become particularly important for solution of problems in signal processing. As reflected in this collection, machine learning for signal processing combines many ideas from adaptive signal/image processing, learning theory and models, and statistics in order to solve complex real-world signal processing......, and two papers from the winners of the Data Analysis Competition. The program included papers in the following areas: genomic signal processing, pattern recognition and classification, image and video processing, blind signal processing, models, learning algorithms, and applications of machine learning...

  18. Report of the 2017 IEEE Cyber Science and Technology Congress

    Directory of Open Access Journals (Sweden)

    Wenbing Zhao

    2017-12-01

    Full Text Available The modern digitized world has led to the emergence of a new paradigm on global information networks and infrastructures known as Cyberspace and the studies of Cybernetics, which bring seamless integration of physical, social and mental spaces. Cyberspace is becoming an integral part of our daily life from learning and entertainment to business and cultural activities. As expected, this whole concept of Cybernetics brings new challenges that need to be tackled. The 2017 IEEE Cyber Science and Technology Congress (CyberSciTech 2017 provided a forum for researchers to report their research findings and exchange ideas. The congress took place in Orlando, Florida, USA during 6–10 November 2017. Not counting poster papers, the congress accepted over fifty papers that are divided into nine sessions. In this report, we provide an overview of the research contributions of the papers in CyberSciTech 2017.

  19. WIH-based IEEE 802.11 ECG monitoring implementation.

    Science.gov (United States)

    Moein, A; Pouladian, M

    2007-01-01

    New wireless technologies make possible the implementation of high level integration wireless devices which allow the replacement of traditional large wired monitoring devices. It offers new functionalities to physicians and will reduce the costs. Among these functionalities, biomedical signals can be sent to other devices (PDA, PC . . . ) or processing centers, without restricting the patients' mobility. This article discusses the WIH (Ward-In-Hand) structure and the software required for its implementation before an operational example is presented with its results. The aim of this project is the development and implementation of a reduced size electrocardiograph based on IEEE 802.11 with high speed and more accuracy, which allows wireless monitoring of patients, and the insertion of the information into the Wi-Fi hospital networks.

  20. Basic security measures for IEEE 802.11 wireless networks

    Directory of Open Access Journals (Sweden)

    Oscar P. Sarmiento

    2008-05-01

    Full Text Available This article presents a tutorial/discussion of three commonly-used IEEE 802.11 wireless network security standards: WEP, WPA and WPA2. A detailed analysis of the RC4 algorithm supporting WEP is presented, including its vulnera-bilities. The WPA and WPA2 encryption protocols’ most relevant aspects and technical characteristics are reviewed for a comparative analysis of the three standards in terms of the security they provide. Special attention has been paid to WEP encryption by using an educational simulation tool written in C++ Builder for facilitating the unders-tanding of this protocol at academic level. Two practical cases of wireless security configurations using Cisco net-working equipment are also presented: configuring and enabling WPA-Personal and WPA2-Personal (these being security options used by TKIP and AES, respectively.

  1. IEEE Std 535-1979: IEEE standard for qualification of Class 1E lead storage batteries for nuclear power generating stations

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This document describes qualification methods for Class 1E lead storage batteries and racks to be used in nuclear power generating stations outside of primary containment. Qualification required in ANSI/IEEE Std 279-1971 and IEE Std 308-1978, can be demonstrated by using the procedures provided in this standard in accordance with IEEE Std 323-1974. Battery sizing, maintenance, capacity testing, installation, charging equipment and consideration of other type batteries are beyond the scope of this standard

  2. IEEE Std 535-1986: IEEE standard for qualification of Class 1E lead storage batteries for nuclear power generating stations

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This document describes qualification methods for Class 1E lead storage batteries and racks to be used in nuclear power generating stations outside of primary containment. Qualification required in ANSI/IEEE Std 308-1980 can be demonstrated by using the procedures provided in this standard in accordance with ANSI/IEEE Std 323-1983. Battery sizing, maintenance, capacity testing, installation, charging equipment, and consideration of other type batteries are beyond the scope of this standard

  3. IEEE Std 650-1990: IEEE standard for qualification of Class 1E static battery chargers and inverters for nuclear power generating stations

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    Methods for qualifying static battery chargers and inverters for Class 1E installations in a mild environment outside containment in nuclear power generating stations are described. The qualification methods set forth employ a combination of type testing and analysis, the latter including a justification of methods, theories, and assumptions used. These procedures meet the requirements of IEEE Std 323-1983, IEEE Standard for Qualifying Class 1E Equipment for Nuclear Power Generating Stations

  4. A formal analysis of ISO/IEEE P11073-20601 standard of medical device communication

    NARCIS (Netherlands)

    Goga, Nicolae; Costache, Stefania; Moldoveanu, Florica

    2009-01-01

    This article presents the formal work done for the ISO/IEEE P11073-20601 Draft Standard for Health informatics - Personal health device communication - Application profile Optimized exchange protocol. ISO/IEEE 11073 family defines standards for device communication between agents (e.g. blood

  5. Comparison Of Several Methods Of Implementing A Fiber Optic IEEE 802.3 Ethernet

    Science.gov (United States)

    Thompson, Geoffrey O.

    1987-01-01

    Several different methods of implementing a fiber optic version of IEEE 802.3 10BASE LANs have been proposed as a candidate for standardization by IEEE. There have been extensive discussions as to the relative merits and features of the several systems. This paper will discuss the merits of each for this particular application on a comparative basis.

  6. 0011-0030.How to make an abstract in IEEE Format for ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; reso; 021; 01; 0011-0030.How to make an abstract in IEEE Format for AvishkarMulticultural Night in IEEE R10 Student Congress 2009Performances.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook ...

  7. 0011-0030.What is IEEE 754 StandardHow to convert real number ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; reso; 021; 01; 0011-0030.What is IEEE 754 StandardHow to convert real number in binary format using IEEE 754 StandardAn.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News.

  8. International Conference on Systems Science 2013

    CERN Document Server

    Grzech, Adam; Swiątek, Paweł; Tomczak, Jakub

    2014-01-01

    The International Conference on Systems Science 2013 (ICSS 2013) was the 18th event of the series of international scientific conferences for researchers and practitioners in the fields of systems science and systems engineering. The conference took place in Wroclaw, Poland during September 10-12, 2013 and was organized  by Wroclaw University of Technology and co-organized by: Committee of Automatics and Robotics of Polish Academy of Sciences, Committee of Computer Science of Polish Academy of Sciences and Polish Section of IEEE. The papers included in the proceedings cover the following topics: Control Theory, Databases and Data Mining, Image and Signal Processing, Machine Learning, Modeling and Simulation, Operational Research, Service Science, Time series and System Identification. The accepted and presented papers highlight new trends and challenges in systems science and systems engineering.

  9. IEEE Std 323-1983: IEEE standard for qualifying Class 1E equipment for nuclear power generating stations

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This standard describes the basic requirements for qualifying Class 1E equipment with interfaces that are to be used in nuclear power generating stations. The requirements presented include the principles, procedures, and methods of qualification. These qualification requirements, when met, will confirm the adequacy of the equipment design under normal, abnormal, design basis event, post design basis event, and in-service test conditions for the performance of safety function(s). The purpose of this standard is to identify requirements for the qualification of Class 1E equipment, including those interfaces whose failure could adversely affect the performance of Class 1E equipment and systems. The methods described shall be used for qualifying equipment, extending qualification, and updating qualification if the equipment is modified. Other issued IEEE standards which present qualification methods for specific equipment or components, or both, and those that deal with parts of the qualification program, may be used to supplement this standard, as applicable

  10. IEEE Std 649-1980: IEEE standard for qualifying Class 1E motor control centers for nuclear power generating stations

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This standard describes the basic principles, requirements, and methods for qualifying Class 1E motor control centers for outside containment applications in nuclear power generating stations. Qualification of motor control centers located inside containment in a nuclear power generating station is beyond the scope of this standard. The purpose of this standard is (1) to define specific qualification requirements for Class 1E motor control centers in accordance with the more general qualification requirements of IEEE Std 323-1974, IEE Standard for Qualifying Class 1E Equipment for Nuclear Power Generating Stations; (2) to provide guidance in establishing a qualification program for demonstrating the design adequacy of Class 1E motor control centers in nuclear power generating station applications

  11. Performance Analysis of IEEE 802.11 DCF and IEEE 802.11e EDCA in Non-saturation Condition

    Science.gov (United States)

    Kim, Tae Ok; Kim, Kyung Jae; Choi, Bong Dae

    We analyze the MAC performance of the IEEE 802.11 DCF and 802.11e EDCA in non-saturation condition where device does not have packets to transmit sometimes. We assume that a flow is not generated while the previous flow is in service and the number of packets in a flow is geometrically distributed. In this paper, we take into account the feature of non-saturation condition in standards: possibility of transmission performed without preceding backoff procedure for the first packet arriving at the idle station. Our approach is to model a stochastic behavior of one station as a discrete time Markov chain. We obtain four performance measures: normalized channel throughput, average packet HoL (head of line) delay, expected time to complete transmission of a flow and packet loss probability. Our results can be used for admission control to find the optimal number of stations with some constraints on these measures.

  12. Attacks on IEEE 802.11 wireless networks

    Directory of Open Access Journals (Sweden)

    Dejan Milan Tepšić

    2013-06-01

    Full Text Available Security of wireless computer networks was initially secured with the WEP security protocol, which relies on the RC4 encryption algorithm and the CRC algorithm to check the integrity. The basic problems of the WEP are a short initialization vector, unsafe data integrity checking, using a common key, the lack of mechanisms for management and exchange of keys, the lack of protection from the endless insertion of the same package into the network, the lack of authentication of access points and the like. The consequences of these failures are easy attacks against the WEP network, namely their complete insecurity. Therefore, the work began on the IEEE 802.11i protocol, which should radically improve the security of wireless networks. Since the development of a protocol lasted, the WPA standard was released to offset the security gap caused by the WEP. The WPA also relies on RC4 and CRC algorithms, but brings temporary keys and the MIC algorithm for data integrity. The 802.1X authentication was introduced and common keys are no longer needed, since it is possible to use an authentication server. The length of the initialization vector was increased and the vector is obtained based on the packet serial number, in order to prevent the insertion of the same packet into the network. The weakness of the WPA security mechanism is the use of a common key. WPA2 (802.11i later appeared. Unlike the WPA mechanism that worked on old devices with the replacement of software, WPA2 requires new network devices that can perform AES encryption. AES replaces the RC4 algorithm and delivers much greater security. Data integrity is protected by encryption. Despite progress, there are still weaknesses in wireless networks. Attacks for denial of service are possible as well as spoofing package headers attacks. For now, it is not advisable to use wireless networks in environments where unreliability and unavailability are not tolerated. Introduction In the entire history of

  13. Conference summaries

    International Nuclear Information System (INIS)

    1991-01-01

    This volume contains conference summaries for the 31. annual conference of the Canadian Nuclear Association and the 12. annual conference of the Canadian Nuclear Society. Topics of discussion include: reactor physics; thermalhydraulics; industrial irradiation; computer applications; fuel channel analysis; small reactors; severe accidents; fuel behaviour under accident conditions; reactor components, safety related computer software; nuclear fuel management; fuel behaviour and performance; reactor safety; reactor engineering; nuclear waste management; and, uranium mining and processing

  14. INTERCARTO CONFERENCES

    OpenAIRE

    Vladimir Tikunov

    2010-01-01

    The InterCarto conferences are thematically organized to target one of the most pressing problems of modern geography—creation and use of geographical information systems (GISs) as effective tools for achieving sustainable development of territories. Over the years, from 1994 to 2009, 1872 participants from 51 countries and 156 cities, who made 1494 reports, attended the conferences. There were 1508 participants from 49 regions of Russia making 1340 presentations. The conferences hosted 31 di...

  15. IEEE Std 730 Software Quality Assurance: Supporting CMMI-DEV v1.3, Product and Process Quality Assurance

    Science.gov (United States)

    2011-05-27

    frameworks 4 CMMI-DEV IEEE / ISO / IEC 15288 / 12207 Quality Assurance ©2011 Walz IEEE Life Cycle Processes & Artifacts • Systems Life Cycle Processes...TAG to ISO TC 176 Quality Management • Quality: ASQ, work experience • Software: three books, consulting, work experience • Systems: Telecom & DoD...and IEEE 730 SQA need to align. The P730 IEEE standards working group has expanded the scope of the SQA process standard to align with IS 12207

  16. Conference summaries

    International Nuclear Information System (INIS)

    1986-01-01

    This volume contains conference summaries of the international conference on radioactive waste management of the Canadian Nuclear Society. Topics of discussion include: storage and disposal; hydrogeology and geochemistry; transportation; buffers and backfill; public attitudes; tailings; site investigations and geomechanics; concrete; economics; licensing; matrix materials and container design; durability of fuel; biosphere modelling; radioactive waste processing; and, future options

  17. Introduction to the IEEE International Symposium on Applications of Ferroelectrics and International Symposium on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials.

    Science.gov (United States)

    Ye, Zuo-Guang; Tan, Xiaoli; Bokov, Alexei A

    2012-09-01

    The 20th IEEE International Symposium on Applications of Ferroelectrics (ISAF) was held on July 24-27, 2011, in Vancouver, British Columbia, Canada, jointly with the International Symposium on Piezoresponse Force Microscopy and Nanoscale Phenomena in Polar Materials (PFM). Over a period of four days, approximately 400 scientists, engineers, and students from around the world presented their work and discussed the latest developments in the field of ferroelectrics, related materials, and their applications. It is particularly encouraging to see that a large number of students (115) were attracted to the joint conference and presented high-quality research works. This trend is not only important to this conference series, but more importantly, it is vital to the future of the ferroelectrics field.

  18. INTERCARTO CONFERENCES

    Directory of Open Access Journals (Sweden)

    Vladimir Tikunov

    2010-01-01

    Full Text Available The InterCarto conferences are thematically organized to target one of the most pressing problems of modern geography—creation and use of geographical information systems (GISs as effective tools for achieving sustainable development of territories. Over the years, from 1994 to 2009, 1872 participants from 51 countries and 156 cities, who made 1494 reports, attended the conferences. There were 1508 participants from 49 regions of Russia making 1340 presentations. The conferences hosted 31 different sections, most popular of which were Environmental GIS-Projects: Development and Experience, Sustainable Development and Innovative Projects, GIS: the Theory and Methodology, Projects for Russia and Regions, and GIS-Technologies and Digital Mapping. The next annual InterCarto-InterGIS conference will take place in December 2011. The Russian component of the conference will be held in the Altay Kray followed by another meeting on Bali, Indonesia

  19. IEEE 802.11ah: A Technology to Face the IoT Challenge.

    Science.gov (United States)

    Baños-Gonzalez, Victor; Afaqui, M Shahwaiz; Lopez-Aguilera, Elena; Garcia-Villegas, Eduard

    2016-11-22

    Since the conception of the Internet of things (IoT), a large number of promising applications and technologies have been developed, which will change different aspects in our daily life. This paper explores the key characteristics of the forthcoming IEEE 802.11ah specification. This future IEEE 802.11 standard aims to amend the IEEE 802.11 legacy specification to support IoT requirements. We present a thorough evaluation of the foregoing amendment in comparison to the most notable IEEE 802.11 standards. In addition, we expose the capabilities of future IEEE 802.11ah in supporting different IoT applications. Also, we provide a brief overview of the technology contenders that are competing to cover the IoT communications framework. Numerical results are presented showing how the future IEEE 802.11ah specification offers the features required by IoT communications, thus putting forward IEEE 802.11ah as a technology to cater the needs of the Internet of Things paradigm.

  20. 48 CFR 52.223-16 - IEEE 1680 Standard for the Environmental Assessment of Personal Computer Products.

    Science.gov (United States)

    2010-10-01

    ... 48 Federal Acquisition Regulations System 2 2010-10-01 2010-10-01 false IEEE 1680 Standard for the... CONTRACT CLAUSES Text of Provisions and Clauses 52.223-16 IEEE 1680 Standard for the Environmental Assessment of Personal Computer Products. As prescribed in 23.706(b)(1), insert the following clause: IEEE...

  1. An Asynchronous IEEE Floating-Point Arithmetic Unit

    Directory of Open Access Journals (Sweden)

    Joel R. Noche

    2007-12-01

    Full Text Available An asynchronous floating-point arithmetic unit is designed and tested at the transistor level usingCadence software. It uses CMOS (complementary metal oxide semiconductor and DCVS (differentialcascode voltage switch logic in a 0.35 µm process using a 3.3 V supply voltage, with dual-rail data andsingle-rail control signals using four-phase handshaking.Using 17,085 transistors, the unit handles single-precision (32-bit addition/subtraction, multiplication,division, and remainder using the IEEE 754-1985 Standard for Binary Floating-Point Arithmetic, withrounding and other operations to be handled by separate hardware or software. Division and remainderare done using a restoring subtractive algorithm; multiplication uses an additive algorithm. Exceptionsare noted by flags (and not trap handlers and the output is in single-precision.Previous work on asynchronous floating-point arithmetic units have mostly focused on single operationssuch as division. This is the first work to the authors' knowledge that can perform floating-point addition,multiplication, division, and remainder using a common datapath.

  2. European Power Electronic conference in Aalborg, Denmark - 1000 participants discussing the future energy technologies

    DEFF Research Database (Denmark)

    Blaabjerg, Frede; Munk-Nielsen, Stig

    2007-01-01

    The European Power Electronics and Adjustable Speed Drives conference with technical sponsorship of IEEE Industrial Electronic Society has been held in Aalborg, Denmark, during the first days of September 2007 with an overwhelming success and participation. It was hosted by Aalborg University's I...

  3. Augmenting the Energy-Saving Impact of IEEE 802.3az via the Control Plane

    OpenAIRE

    Thaenchaikun , Chakadkit; Jakllari , Gentian; Paillassa , Béatrice

    2015-01-01

    International audience; IEEE 802.3az, the recent standard for Energy Efficient Ethernet, is one of the main contributions of the ICT industry to the global quest for energy efficiency. Energy consumption reduction is accomplished by essentially replacing the continuous IDLE of legacy IEEE 802.3 cards with a Low Power Idle. While this is an important step in the right direction, studies have shown that the energy saving with IEEE 802.3az highly depends on the traffic load and stops for link ut...

  4. Energy Harvesting - Wireless Sensor Networks for Indoors Applications Using IEEE 802.11

    DEFF Research Database (Denmark)

    Fafoutis, Xenofon; Sørensen, Thomas; Madsen, Jan

    2014-01-01

    The paper investigates the feasibility of using IEEE 802.11 in energy harvesting low-power sensing applications. The investigation is based on a prototype carbon dioxide sensor node that is powered by artificial indoors light. The wireless communication module of the sensor node is based on the RTX......4100 module. RTX4100 incorporates a wireless protocol that duty-cycles the radio while being compatible with IEEE 802.11 access points. The presented experiments demonstrate sustainable operation but indicate a trade-off between the benefits of using IEEE 802.11 in energy harvesting applications...

  5. Performance Analysis of IEEE 802.11e (EDCF) and IEEE 802.11(DCF) WLAN Incorporating Different Physical Layer Standards

    Science.gov (United States)

    Sharma, V.; Singh, H.; Malhotra, J.

    2012-12-01

    Medium access coordination function basically implements the distributed coordination function (DCF) which provides support to best effort services but limited to QoS services. Subsequently, a new standard, namely enhanced distributed channel access (EDCA) is reported. The IEEE 802.11e (EDCA) defines MAC procedures to support QoS requirements which specifies distributed contention based access scheme to access the shared wireless media. This paper evaluates the performance of EDCA based IEEE 802.11 WLAN for various access categories (ACs) using OPNET™ Modeller 14.5. Further, the computed results are compared with DCF protocols in terms of QoS parameters. Furthermore, the simulative observation is reported at data rate of 54 Mbps using different physical layer protocols such as IEEE 802.11a/b/g to stumble on the best one to be implemented with EDCF to achieve improved QoS.

  6. Analysis of Adaptive Control Scheme in IEEE 802.11 and IEEE 802.11e Wireless LANs

    Science.gov (United States)

    Lee, Bih-Hwang; Lai, Hui-Cheng

    In order to achieve the prioritized quality of service (QoS) guarantee, the IEEE 802.11e EDCAF (the enhanced distributed channel access function) provides the distinguished services by configuring the different QoS parameters to different access categories (ACs). An admission control scheme is needed to maximize the utilization of wireless channel. Most of papers study throughput improvement by solving the complicated multidimensional Markov-chain model. In this paper, we introduce a back-off model to study the transmission probability of the different arbitration interframe space number (AIFSN) and the minimum contention window size (CWmin). We propose an adaptive control scheme (ACS) to dynamically update AIFSN and CWmin based on the periodical monitoring of current channel status and QoS requirements to achieve the specific service differentiation at access points (AP). This paper provides an effective tuning mechanism for improving QoS in WLAN. Analytical and simulation results show that the proposed scheme outperforms the basic EDCAF in terms of throughput and service differentiation especially at high collision rate.

  7. Conference summaries

    International Nuclear Information System (INIS)

    1988-01-01

    This volume contains conference summaries of the 28. annual conference of the Canadian Nuclear Association, and the 9. annual conference of the Canadian Nuclear Society. Topics of discussion include: power reactors; fuel cycles; nuclear power and public understanding; future trends; applications of nuclear technology; CANDU reactors; operational enhancements; design of small reactors; accident behaviour in fuel channels; fuel storage and waste management; reactor commissioning/decommissioning; nuclear safety experiments and modelling; the next generation reactors; advances in nuclear engineering education in Canada; safety of small reactors; current position and improvements of fuel channels; current issues in nuclear safety; and radiation applications - medical and industrial

  8. IEEE 1588 Time Synchronization Board in MTCA.4 Form Factor

    Science.gov (United States)

    Jabłoński, G.; Makowski, D.; Mielczarek, A.; Orlikowski, M.; Perek, P.; Napieralski, A.; Makijarvi, P.; Simrock, S.

    2015-06-01

    Distributed data acquisition and control systems in large-scale scientific experiments, like e.g. ITER, require time synchronization with nanosecond precision. A protocol commonly used for that purpose is the Precise Timing Protocol (PTP), also known as IEEE 1588 standard. It uses the standard Ethernet signalling and protocols and allows obtaining timing accuracy of the order of tens of nanoseconds. The MTCA.4 is gradually becoming the platform of choice for building such systems. Currently there is no commercially available implementation of the PTP receiver on that platform. In this paper, we present a module in the MTCA.4 form factor supporting this standard. The module may be used as a timing receiver providing reference clocks in an MTCA.4 chassis, generating a Pulse Per Second (PPS) signal and allowing generation of triggers and timestamping of events on 8 configurable backplane lines and two front panel connectors. The module is based on the Xilinx Spartan 6 FPGA and thermally stabilized Voltage Controlled Oscillator controlled by the digital-to-analog converter. The board supports standalone operation, without the support from the host operating system, as the entire control algorithm is run on a Microblaze CPU implemented in the FPGA. The software support for the card includes the low-level API in the form of Linux driver, user-mode library, high-level API: ITER Nominal Device Support and EPICS IOC. The device has been tested in the ITER timing distribution network (TCN) with three cascaded PTP-enabled Hirschmann switches and a GPS reference clock source. An RMS synchronization accuracy, measured by direct comparison of the PPS signals, better than 20 ns has been obtained.

  9. 2011 IEEE Visualization Contest Winner: Visualizing Unsteady Vortical Behavior of a Centrifugal Pump

    KAUST Repository

    Otto, Mathias; Kuhn, Alexander; Engelke, Wito; Theisel, Holger

    2012-01-01

    In the 2011 IEEE Visualization Contest, the dataset represented a high-resolution simulation of a centrifugal pump operating below optimal speed. The goal was to find suitable visualization techniques to identify regions of rotating stall

  10. Harmonization of IEEE323 and IEC60780 standards For Environmental Qualificaiton of Electric Equipment

    International Nuclear Information System (INIS)

    Kim, Jong Seog

    2009-01-01

    IEEE323 standard has been widely used for the qualification of electric equipment in Asian pacific area while IEC6070 has been mostly used in European area. Since each plant use different standard for environmental qualification, manufacturer has to perform the qualification test twice in accordance with each standard. Problem also can be happened in the plant site when they are going to purchase equipment qualified by different qualification standard which are not used in his plant. The need of harmonization of each standard has been raised several years and it is known that some studies are in progress by IEEE committee. KEPRI has a plan of comparing EQ relative standards of IEEE, IEC and RCC in 2009. In this paper, brief comparing result between IEEE323 and IEC60780 and the proper harmonization method is introduced

  11. Defending IEEE 802.11-Based Networks Against Denial Of Service Attacks

    National Research Council Canada - National Science Library

    Tan, Boon

    2003-01-01

    The convenience of IEEE 8O2.11-based wireless access networks has led to widespread deployment in the consumer, industrial and military sectors However, this use is predicated on an implicit assumption of confidentiality...

  12. Corrections to "Connectivity-Based Reliable Multicast MAC Protocol for IEEE 802.11 Wireless LANs"

    Directory of Open Access Journals (Sweden)

    Choi Woo-Yong

    2010-01-01

    Full Text Available We have found the errors in the throughput formulae presented in our paper "Connectivity-based reliable multicast MAC protocol for IEEE 802.11 wireless LANs". We provide the corrected formulae and numerical results.

  13. Return of IEEE Std 627 and its Value to Equipment Qualification Programs

    International Nuclear Information System (INIS)

    Horvath, D.A.

    2012-01-01

    IEEE Std 627 ''Design Qualification of Safety Systems Equipment Used in Nuclear Power Generating Stations'' was issued to more generically establish qualification requirements in the form of a high level umbrella document. Efforts on this standard began in late 1975 at the request of the IEEE Nuclear Standards Management Board. In 1977 a joint ASME/IEEE agreement established responsibility for qualification and quality assurance standards preparation. ASME accepted responsibility for Quality Assurance and IEEE for qualification. In accordance with that agreement, IEEE completed the generic qualification standard in 1980. This document provided high level approaches, criteria, guidance, and principles for qualification of both electrical and mechanical equipment that at that time appeared in no other industry standard. IEEE Std 627-1980 was later reaffirmed in 1996. In 1986, ASME's Board on Nuclear Codes and Standards directed its Committee on Qualification of Mechanical Equipment (QME) to develop a standard for qualifying mechanical equipment. This task was completed in several parts during the time frame from 1992 to 1994. Partly in response to this activity, IEEE Std 627 was withdrawn in 2002. Later although withdrawn, it was found that IEEE Std 627 was continuing to be used and referenced by many entities both in the US and other countries including in ASME's QME-1-2002 ''Qualification of Active Mechanical Equipment Used in Nuclear Power Plants'', US NRC's NUREG-0800 Standard Review Plan Section 3.11, at least one reactor vendor's Design Certification Document (DCD), several international licensing documents, and elsewhere. As a result, in 2007, the IEEE Standards Board authorized Working Group 2.10 of Subcommittee 2 (Qualification) of the Power and Energy Society's Nuclear Power Engineering Committee to resurrect and update IEEE Std 627-1980 (Reaff 1996). The result was the culmination IEEE Std 627 in 2010. This paper will report on the eight improvements made

  14. Defending IEEE 802.11-Based Networks Against Denial Of Service Attacks

    National Research Council Canada - National Science Library

    Tan, Boon

    2003-01-01

    ...) attacks targeting its management and media access protocols Computer simulation models have proven to be effective tools in the study of cause and effect in numerous fields This thesis involved the design and implementation of a IEEE 8O2.11-based simulation model using OMNeT++, to investigate the effects of different types of DoS attacks on a IEEE 8O2.11 network, and the effectiveness of corresponding countermeasures.

  15. Performance of the IEEE 802.3 EPON registration scheme under high load

    Science.gov (United States)

    Bhatia, Swapnil P.; Bartos, Radim

    2004-09-01

    The proposed standard for the IEEE 802.3 Ethernet Passive Optical Network includes a random delayed transmission scheme for registration of new nodes. Although the scheme performs well on low loads, our simulation demonstrates the degraded and undesirable performance of the scheme at higher loads. We propose a simple modification to the current scheme that increases its range of operation and is compatible with the IEEE draft standard. We demonstrate the improvement in performance gained without any significant increase in registration delay.

  16. Isolan - A Fibre Optic Network Conforming To IEEE 802.3 Standards

    Science.gov (United States)

    Roworth, D. A. A.; Howe, N.

    1986-10-01

    The progress of the IEEE 802.3 standard for fibre optic LANs is indicated with reference to both mixed media networks and full fibre networks. For a fibre optic network the most suitable layout is a "snowflake" topology composed of multiport repeaters and active fibre hubs. A range of components is described which enables the realisation of such a topology in conformance with the IEEE 802.3 standard.

  17. Validation of IEEE P1547.1 Interconnection Test Procedures: ASCO 7000 Soft Load Transfer System

    Energy Technology Data Exchange (ETDEWEB)

    Kroposki, B.; Englebretson, S.; Pink, C.; Daley, J.; Siciliano, R.; Hinton, D.

    2003-09-01

    This report presents the preliminary results of testing the ASCO 7000 Soft Load Transfer System according to IEEE P1547.1 procedures. The ASCO system interconnects synchronous generators with the electric power system and provides monitoring and control for the generator and grid connection through extensive protective functions. The purpose of this testing is to evaluate and give feedback on the contents of IEEE Draft Standard P1547.1 Conformance Tests Procedures for Equipment Interconnecting Distributed Resources With Electric Power Systems.

  18. Real-time-service-based Distributed Scheduling Scheme for IEEE 802.16j Networks

    OpenAIRE

    Kuo-Feng Huang; Shih-Jung Wu

    2013-01-01

    Supporting Quality of Service (QoS) guarantees for diverse multimedia services is the primary concern for IEEE802.16j networks. A scheduling scheme that satisfies the QoS requirements has become more important for wireless communications. We proposed an adaptive nontransparent-based distributed scheduling scheme (ANDS) for IEEE 802.16j networks. ANDS comprises three major components: Priority Assignment, Resource Allocation, Preserved Bandwidth Adjustment. Different service-type connections p...

  19. Enhancing MAC performance of DCF protocol for IEEE 802.11 wireless LANs

    Science.gov (United States)

    Choi, Woo-Yong

    2017-01-01

    The DCF (Distributed Coordination Function) is the basic MAC (Medium Access Control) protocol of IEEE 802.11 wireless LANs and compatible with various IEEE 802.11 PHY extensions. The performance of the DCF degrades exponentially as the number of nodes participating in the DCF transmission procedure increases. To deal with this problem, we propose a simple, however efficient modification of the DCF by which the performance of the DCF is greatly enhanced.

  20. Radio Frequency Fingerprinting Techniques Through Preamble Modification in IEEE 802.11B

    Science.gov (United States)

    2014-06-30

    4.2.1 Wald–Wolfowitz Runs Test . . . . . . . . . . . . . . . . . . . . . . 41 4.2.2 Wald–Wolfowitz Application to SXS System . . . . . . . . . . . . 42...Station SXS Signals eXploitation System USB Universal Serial Bus xiv Acronym Definition USRP Universal Software Radio Peripheral WLAN Wireless Local...Electronics Engineers (IEEE) defines standards applicable to the IEEE 802.11 protocol, however the standard does not reach the level of specificity to dictate

  1. Proceedings of the 1998 IPPSA annual conference: Opportunities in the new electricity marketplace : the race for the customer

    International Nuclear Information System (INIS)

    1998-01-01

    This fourth annual conference of IPPSA was devoted to an exploration of the opportunities that the new deregulated electric marketplace is expected to provide. Conference speakers included industry experts with significant experience in an open energy marketplace and representatives from the recently deregulated telecommunications industry. The conference was divided into six sessions. Session titles were as follows: (1) power in the twenty first century, (2) western Canadian response, (3) breaking down the barriers: the opportunities deregulation provides, (4) telecommunications competition: lessons learned and new battles, (5) electricity as a commodity, and (6) the new buying power of retail customers. Tabs., figs

  2. International conference on advanced nanomaterials and nanotechnology

    International Nuclear Information System (INIS)

    2009-01-01

    Nanoscale science and technology have occupied centre stage globally in modern scientific research and discourses in early twenty first century. The enabling nature of the technology makes it important in modern electronics, computing, materials, healthcare, energy, the environment and with specific emphasis on the multidisciplinary nature of the subject. Indian Institute of Technology Guwahati has taken a proactive role in promoting Nanotechnology by establishing and nurturing a centre for nanotechnology with the aim of generation of knowledge in the field and development of human resources for meeting demands in academics and industry. ICANN-2009 aims to promote sharing of new knowledge and exchange of the latest ideas in the field, through deliberations in the conference. Papers relevant to INIS are indexed separately

  3. Proceedings of the 22nd Particle Accelerator Conference (PAC'07)

    International Nuclear Information System (INIS)

    2007-01-01

    The twenty-second Particle Accelerator Conference, PAC'07, took place at the Albuquerque Convention Centre in Albuquerque, the largest city in New Mexico, from Monday to Friday, 2007 June 25 to 29. It was attended by over 1350 delegates from 25 different countries (63% North America, 24% Europe, 11% Asia and 2% Other), and was held under the auspices of the two professional societies that oversee and make holding this series of conferences possible, the Division of Physics of Beams within APS, and the Nuclear and Plasma Sciences Society within IEEE. As host of the conference, Los Alamos National Laboratory (LANL) is especially thanked for their many contributions and assistance both prior to and during the conference. The Convention Center was an ideal location for information sharing and discussions between the interdisciplinary aspects of the accelerator community, as well as for related meetings and ad-hoc 'rump' sessions.

  4. Mendel conference

    CERN Document Server

    2015-01-01

    This book is a collection of selected accepted papers of Mendel conference that has been held in Brno, Czech Republic in June 2015. The book contents three chapters which represent recent advances in soft computing including intelligent image processing and bio-inspired robotics.: Chapter 1: Evolutionary Computing, and Swarm intelligence, Chapter 2: Neural Networks, Self-organization, and Machine Learning, and Chapter3: Intelligent Image Processing, and Bio-inspired Robotics. The Mendel conference was established in 1995, and it carries the name of the scientist and Augustinian priest Gregor J. Mendel who discovered the famous Laws of Heredity. In 2015 we are commemorating 150 years since Mendel's lectures, which he presented in Brno on February and March 1865. The main aim of the conference was to create a periodical possibility for students, academics and researchers to exchange their ideas and novel research methods.  .

  5. Berkeley Conference

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    1986-10-15

    To a regular observer at annual international meetings, progress in particle physics from one year to the next sometimes might seem ponderously slow. But shift the timescale and the result is startling. Opening his summary of the 1986 International Conference on High Energy Physics, held in Berkeley, California, from 16-23 July, Steve Weinberg first recalled the 1966 Conference, also held in Berkeley. Then the preoccupations were current algebra, hadron resonances and the interpretation of scattering in terms of Regge poles, and the theory of weak interactions. Physics certainly has moved.

  6. Berkeley Conference

    International Nuclear Information System (INIS)

    Anon.

    1986-01-01

    To a regular observer at annual international meetings, progress in particle physics from one year to the next sometimes might seem ponderously slow. But shift the timescale and the result is startling. Opening his summary of the 1986 International Conference on High Energy Physics, held in Berkeley, California, from 16-23 July, Steve Weinberg first recalled the 1966 Conference, also held in Berkeley. Then the preoccupations were current algebra, hadron resonances and the interpretation of scattering in terms of Regge poles, and the theory of weak interactions. Physics certainly has moved

  7. Conference proceedings

    African Journals Online (AJOL)

    ebutamanya

    2016-02-29

    Feb 29, 2016 ... In addition, there are persistent problems with leadership and planning, vaccine stock management, supply chain capacity and quality, provider-parent communication, and financial sustainability. The conference delegates agreed to move from talking to taking concrete actions around children's health, and ...

  8. Glasgow conference

    Energy Technology Data Exchange (ETDEWEB)

    Fraser, Gordon

    1994-10-15

    The biennial 'Rochester' International Conferences on High Energy Physics which tick the rhythm of high energy physics progress reflect the dominance of the 'Standard Model' - the picture of electroweak and quark/gluon interactions in a simple framework of six weaklyinteracting particles (leptons) and six quarks. Despite its limited intellectual appeal, after a decade of intense probing the Standard Model still refuses to budge.

  9. Conference summary

    International Nuclear Information System (INIS)

    Clark, D.J.

    1975-10-01

    A brief review is given of the main results presented at the International Conference on Heavy Ion Sources, October 27--30, 1975. The sections are as follows: highlights, general observations, fundamental processes in sources, positive ion sources, negative ion sources, beam formation and emittance measurements, stripping, accelerators and experiments, and future prospects

  10. Lisbon Conference

    International Nuclear Information System (INIS)

    Anon.

    1981-01-01

    Although no major physics discoveries were announced, the European Physical Society's International Conference on High Energy Physics, held in Lisbon from 9-15 July, was significant in that it showed the emerging pattern of physics for the 1980s

  11. Conference report

    African Journals Online (AJOL)

    Tamara Shefer

    Bloomberg Philanthropies. The conference theme “from research to implementation” emphasised the importance of connecting knowledge around violence with injury prevention, while stressing the need to address the multitude of transnational public health challenges. In speaking to this theme, the. Tampere Declaration ...

  12. Conference Planning.

    Science.gov (United States)

    Carter, Richard

    1982-01-01

    Presents an overview of the management planning technique known as Break Even Analysis and outlines its use as a tool in financial planning for organizations intending to conduct or sponsor a conference, seminar, or workshop. Three figures illustrating Break Even Analysis concepts and a Break Even Analysis worksheet are included. (JL)

  13. Conference proceedings

    African Journals Online (AJOL)

    abp

    2015-08-07

    Aug 7, 2015 ... Conference was organized in June 2-6, 2014 at the Yaoundé Mont Febe Hotel, in Cameroon. Under the theme«Practice .... while the implementation of family planning in African HIV programs will favor safe contraception ... equipment. The WHO-stepwise approach for the global strategy for the prevention ...

  14. Conference summaries

    International Nuclear Information System (INIS)

    1983-01-01

    The papers presented at this conference cover the fields of thermalhydraulics, nuclear plant design and operation, licensing, decontamination, restoration and dismantling of nuclear power facilities, services to the nuclear industry, new applications of nuclear technology, reactor physics and fuel cycles, accelerator-breeders, fusion research and lasers

  15. IEEE 1547 and 2030 Standards for Distributed Energy Resources Interconnection and Interoperability with the Electricity Grid

    Energy Technology Data Exchange (ETDEWEB)

    Basso, T.

    2014-12-01

    Public-private partnerships have been a mainstay of the U.S. Department of Energy and the National Renewable Energy Laboratory (DOE/NREL) approach to research and development. These partnerships also include technology development that enables grid modernization and distributed energy resources (DER) advancement, especially renewable energy systems integration with the grid. Through DOE/NREL and industry support of Institute of Electrical and Electronics Engineers (IEEE) standards development, the IEEE 1547 series of standards has helped shape the way utilities and other businesses have worked together to realize increasing amounts of DER interconnected with the distribution grid. And more recently, the IEEE 2030 series of standards is helping to further realize greater implementation of communications and information technologies that provide interoperability solutions for enhanced integration of DER and loads with the grid. For these standards development partnerships, for approximately $1 of federal funding, industry partnering has contributed $5. In this report, the status update is presented for the American National Standards IEEE 1547 and IEEE 2030 series of standards. A short synopsis of the history of the 1547 standards is first presented, then the current status and future direction of the ongoing standards development activities are discussed.

  16. Research Area 4.1 Nano- and Bio-Electronics: Lester Eastman Conference on High-Performance Devices

    Science.gov (United States)

    2017-06-02

    significantly lower. Moreover, wells containing MoS2 on the polyimide film had a large amount of cells growing on the material, further indicating high ...SECURITY CLASSIFICATION OF: 1. REPORT DATE (DD-MM-YYYY) 4. TITLE AND SUBTITLE 13. SUPPLEMENTARY NOTES 12. DISTRIBUTION AVAILIBILITY STATEMENT 6...Research Area 4.1 Nano- and Bio-Electronics: Lester Eastman Conference on High -Performance Devices The 2016 IEEE Lester Eastman Conference of High

  17. IEEE C37.105-1987: IEEE standard for qualifying Class 1E protective relays and auxiliaries for nuclear power generating stations

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This standard describes the basic principles, requirements, and methods for qualifying Class 1E protective relays and auxiliaries such as test and control switches, terminal blocks, and indicating lamps for applications in nuclear power generating stations. When properly employed it can be used to demonstrate the design adequacy of such equipment under normal, abnormal, design basis event and post design basis event conditions in accordance with ANSI/IEEE Std 323-1983. When protective relays and auxiliaries are located in areas not subject to harsh environments, environmental qualification is not required. Protective relays and auxiliaries located inside primary containment in a nuclear power generating station present special conditions beyond the scope of this document. The qualification procedure presented is generic in nature. Other methods may be used at the discretion of the qualifier, provided the basic precepts of ANSI/IEEE Std 32301983 are satisfied

  18. IEEE No. 323, IEEE trial-use standard: General guide for qualifying Class I electric equipment for nuclear power generating stations

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This document describes the basic requirements for the qualification of Class I electric equipment. This is equipment which is essential to the safe shutdown and isolation of the reactor or whose failure or damage could result in significant release of radioactive material. The purpose of this document is to provide guidance for demonstrating the qualifications of electrical equipment as required in the IEEE Std 279 -- Criteria for Nuclear Power Generating Station Protection Systems, and IEEE Std 308 -- Criteria for Class 1E Electric Systems for Nuclear Power Generating Stations. The qualification methods described may be used in conjunction with the Guides for qualifying specific types of equipment, (see Foreword), for updating qualification following modifications or for qualifying equipment for which no applicable Guide exists

  19. Design of handoff procedures for broadband wireless access IEEE 802.16 based networks

    Directory of Open Access Journals (Sweden)

    V. Rangel–Licea

    2008-01-01

    Full Text Available IEEE 802.16 is a protocol for fixed broad band wire less access that is currently trying to add mobility among mobile users in the standard. However, mobility adds some technical barriers that should be solved first, this is the case of HO "handoff" (change of connection between two base stations "BS" by a mobile user. In this paper, the problem of HO in IEEE 802.16 is approached try ing to maintain the quality of service (QoS of mobile users. A mechanism for changing connection during HO is pre sented. A simulation model based on OPNET MODELER1 was developed to evaluate the performance of the proposed HO mechanism. Finally, this paper demonstrates that it is possible to implement a seam less HO mech a nism over IEEE 802.16 even for users with de manding applications such as voice over IP.

  20. An Extended IEEE 118-Bus Test System With High Renewable Penetration

    Energy Technology Data Exchange (ETDEWEB)

    Pena, Ivonne; Martinez-Anido, Carlo Brancucci; Hodge, Bri-Mathias

    2018-01-01

    This article describes a new publicly available version of the IEEE 118-bus test system, named NREL-118. The database is based on the transmission representation (buses and lines) of the IEEE 118-bus test system, with a reconfigured generation representation using three regions of the US Western Interconnection from the latest Western Electricity Coordination Council (WECC) 2024 Common Case [1]. Time-synchronous hourly load, wind, and solar time series are provided for over one year (8784 hours). The public database presented and described in this manuscript will allow researchers to model a test power system using detailed transmission, generation, load, wind, and solar data. This database includes key additional features that add to the current IEEE 118-bus test model, such as: the inclusion of 10 generation technologies with different heat rate functions, minimum stable levels and ramping rates, GHG emissions rates, regulation and contingency reserves, and hourly time series data for one full year for load, wind and solar generation.

  1. PERFORMANCE STUDY OF DISTRIBUTED COORDINATION FUNCTION OVER IEEE 802.11A PHYSICAL LAYER

    Directory of Open Access Journals (Sweden)

    S. SELVAKENEDDY

    2006-06-01

    Full Text Available IEEE 802.11a is one of the latest standards to be released by the IEEE Project 802 for wireless LANs. It has specified an additional physical layer (PHY to support higher data rates, and is termed as the orthogonal frequency division multiplexing (OFDM. In order to exploit its benefits, one of the medium access control (MAC protocols specified in the IEEE 802.11 specification is called distributed coordination function (DCF. DCF is a carrier sense multiple access with collision avoidance (CSMA/CA scheme with slotted binary exponential backoff. The frames can be transmitted using the basic access scheme or the RTS/CTS scheme in DCF. It was demonstrated previously that the RTS/CTS mechanism works well in most scenarios for the previously specified PHYs. In this work, a simple simulator is developed to verify the scalability of the RTS/CTS mechanism over OFDM PHY, which supports much higher data rates.

  2. IEEE 1451.2 based Smart sensor system using ADuc847

    Science.gov (United States)

    Sreejithlal, A.; Ajith, Jose

    IEEE 1451 standard defines a standard interface for connecting transducers to microprocessor based data acquisition systems, instrumentation systems, control and field networks. Smart transducer interface module (STIM) acts as a unit which provides signal conditioning, digitization and data packet generation functions to the transducers connected to it. This paper describes the implementation of a microcontroller based smart transducer interface module based on IEEE 1451.2 standard. The module, implemented using ADuc847 microcontroller has 2 transducer channels and is programmed using Embedded C language. The Sensor system consists of a Network Controlled Application Processor (NCAP) module which controls the Smart transducer interface module (STIM) over an IEEE1451.2-RS232 bus. The NCAP module is implemented as a software module in C# language. The hardware details, control principles involved and the software implementation for the STIM are described in detail.

  3. The scalable coherent interface, IEEE P1596, status and possible applications to data acquisition and physics

    International Nuclear Information System (INIS)

    Gustavson, D.B.

    1990-01-01

    IEEE P1596, the Scalable Coherent Interface (formerly known as SuperBus) is based on experience gained while developing Fastbus (ANSI/IEEE 960-1986, IEC 935), Futurebus (IEEE P896.x) and other modern 32-bit buses. SCI goals include a minimum bandwidth of 1 GByte/sec per processor in multiprocessor systems with thousands of processors; efficient support of a coherent distributed-cache image of distributed shared memory; support for repeaters which interface to existing or future buses; and support for inexpensive small rings as well as for general switched interconnections like Banyan, Omega, or crossbar networks. This paper presents a summary of current directions, reports the status of the work in progress, and suggests some applications in data acquisition and physics. 7 refs

  4. Application of IEEE 1588 to the real-time control system of accelerator

    International Nuclear Information System (INIS)

    Ma Mingchao; Chen Jianfeng; Shen Liren; Jiang Geyang

    2014-01-01

    Background: Time synchronization is one of the core technology of realizing the real-time control of accelerator under the distributed control system architecture. The ordinary crystal frequency deviation of IEEE 1588 causes low synchronous accuracy, which doesn't meet the needs of high precision synchronization. Purpose: This paper proposes an algorithm to improve the synchronization precision caused by the crystal frequency deviation. Methods: According to the basic principle of IEEE 1588 time synchronization, a dynamic frequency compensation (DFC) algorithm module was designed and a test platform was built to verify the feasibility and practicability of the algorithm. The influence of the synchronous cycle and delay jitter of the switch on the synchronization accuracy were analyzed. Results: Experimental results showed the great precision improvement of synchronization after using DFC algorithm. Conclusion: Low synchronous accuracy caused by the crystal frequency deviation can be improved by using DFC algorithm implemented for precision time protocol (PTP) of IEEE 1588. (authors)

  5. An analytical model for the performance analysis of concurrent transmission in IEEE 802.15.4.

    Science.gov (United States)

    Gezer, Cengiz; Zanella, Alberto; Verdone, Roberto

    2014-03-20

    Interference is a serious cause of performance degradation for IEEE802.15.4 devices. The effect of concurrent transmissions in IEEE 802.15.4 has been generally investigated by means of simulation or experimental activities. In this paper, a mathematical framework for the derivation of chip, symbol and packet error probability of a typical IEEE 802.15.4 receiver in the presence of interference is proposed. Both non-coherent and coherent demodulation schemes are considered by our model under the assumption of the absence of thermal noise. Simulation results are also added to assess the validity of the mathematical framework when the effect of thermal noise cannot be neglected. Numerical results show that the proposed analysis is in agreement with the measurement results on the literature under realistic working conditions.

  6. Throughput and delay analysis of IEEE 802.15.6-based CSMA/CA protocol.

    Science.gov (United States)

    Ullah, Sana; Chen, Min; Kwak, Kyung Sup

    2012-12-01

    The IEEE 802.15.6 is a new communication standard on Wireless Body Area Network (WBAN) that focuses on a variety of medical, Consumer Electronics (CE) and entertainment applications. In this paper, the throughput and delay performance of the IEEE 802.15.6 is presented. Numerical formulas are derived to determine the maximum throughput and minimum delay limits of the IEEE 802.15.6 for an ideal channel with no transmission errors. These limits are derived for different frequency bands and data rates. Our analysis is validated by extensive simulations using a custom C+ + simulator. Based on analytical and simulation results, useful conclusions are derived for network provisioning and packet size optimization for different applications.

  7. 2nd international conference on advanced nanomaterials and nanotechnology

    CERN Document Server

    Goswami, D; Perumal, A

    2013-01-01

    Nanoscale science and technology have occupied centre stage globally in modern scientific research and discourses in the early twenty first century. The enabling nature of the technology makes it important in modern electronics, computing, materials, healthcare, energy and the environment. This volume contains selected articles presented (as Invited/Oral/Poster presentations) at the 2nd international conference on advanced materials and nanotechnology (ICANN-2011) held recently at the Indian Institute of Technology Guwahati, during Dec 8-10, 2011. The list of topics covered in this proceedings include: Synthesis and self assembly of nanomaterials Nanoscale characterisation Nanophotonics & Nanoelectronics Nanobiotechnology Nanocomposites  F   Nanomagnetism Nanomaterials for Enery Computational Nanotechnology Commercialization of Nanotechnology The conference was represented by around 400 participants from several countries including delegates invited from USA, Germany, Japan, UK, Taiwan, Italy, Singapor...

  8. Conference Proceedings

    International Nuclear Information System (INIS)

    1998-01-01

    National and international aspects of climate change were the central concern of this conference organized by the Alliance for Responsible Environmental Alternatives (AREA). AREA is a coalition of industry, labour and municipalities from across Canada which was created to reflect the views and represent the interests of Canadians in the Climate Change Debate. Ways and means of optimizing Canada's response to the Global Climate Change Challenge were discussed. Discussions emphasized issues regarding the effectiveness of voluntary mechanisms to reduce greenhouse gases, as opposed to government-mandated actions for achieving climate change targets. The issue of how a differentiated system for emission reduction targets and timetables can be implemented was also debated. The economic implications of climate change were outlined. Canada's national agenda and the likely outcomes of the Conference of Parties (COP 4) in Buenos Aires also received much attention. tabs., figs

  9. SIGEF Conference

    CERN Document Server

    Terceño-Gómez, Antonio; Ferrer-Comalat, Joan; Merigó-Lindahl, José; Linares-Mustarós, Salvador

    2015-01-01

    This book is a collection of selected papers presented at the SIGEF conference, held at the Faculty of Economics and Business of the University of Girona (Spain), 06-08 July, 2015. This edition of the conference has been presented with the slogan “Scientific methods for the treatment of uncertainty in social sciences”. There are different ways for dealing with uncertainty in management. The book focuses on soft computing theories and their role in assessing uncertainty in a complex world. It gives a comprehensive overview of quantitative management topics and discusses some of the most recent developments in all the areas of business and management in soft computing including Decision Making, Expert Systems and Forgotten Effects Theory, Forecasting Models, Fuzzy Logic and Fuzzy Sets, Modelling and Simulation Techniques, Neural Networks and Genetic Algorithms and Optimization and Control. The book might be of great interest for anyone working in the area of management and business economics and might be es...

  10. Conference summaries

    International Nuclear Information System (INIS)

    1987-01-01

    This volume contains summaries of 28 papers presented at the 27. conference of the Canadian Nuclear Association. These papers discuss the general situation of the Canadian nuclear industry and the CANDU reactor; dialogue with the public; the International Atomic Energy Agency; and economic goals and operating lessons. It also contains summaries of 70 papers presented at the 8. conference of the Canadian Nuclear Society, which discuss plant life extension; safety and the environment; reactor physics; thermalhydraulics; risk assessment; the CANDU spacer location and repositioning project; CANDU operations; safety research after Chernobyl; fuel channels; and nuclear technology developments. The individual papers are also available in INIS-mf--13673 (CNA), and INIS-mf--12909 (CNS). (L.L.)

  11. Sun Tzu: Theorist for the Twenty-First Century

    Science.gov (United States)

    2010-03-01

    instructing its Senior Leaders in the productiveness of this Strategic Thinking Model and ensure that future leaders are given the appropriate...the following suggestion: (1) Continue to intergrate Sun Tzu’s noteworthy strategic theories in today’s campaign plans to win the conflicts against

  12. Moral Psychology for the Twenty-First Century

    Science.gov (United States)

    Haidt, Jonathan

    2013-01-01

    Lawrence Kohlberg slayed the two dragons of twentieth-century psychology--behaviorism and psychoanalysis. His victory was a part of the larger cognitive revolution that shaped the world in which all of us study psychology and education today. But the cognitive revolution itself was modified by later waves of change, particularly an "affective…

  13. Restructuring the Foreign Affairs Agencies for the Twenty First Century

    National Research Council Canada - National Science Library

    Smythe, Ana

    2000-01-01

    This paper underscores the critical need for cultural change and professional development in the Foreign Affairs Agencies of the United States in order to meet the challenge of a dynamically changed...

  14. Redesigning the World Trade Organization for the Twenty-First ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 déc. 2009 ... Two high-level commissions — the Sutherland report in 2004 and the Warwick Commission report in 2007 — addressed the future of the World Trade Organization (WTO) and made proposals for incremental reform. This book goes further. It explains why institutional reform of the WTO is needed at this ...

  15. Rethinking the humanities in twenty-first century Africa

    African Journals Online (AJOL)

    Using Bergson's theory of history and Foucault's concept of knowledge as power, and others, Msiska argues that the field of humanities in Africa should be reconceptualised into African Humanities in order to effect what Deleuze and Guattari have defined as conceptual self-semiotisation. Msiska also identifies the main ...

  16. Twenty-first century metadata operations challenges, opportunities, directions

    CERN Document Server

    Lee Eden, Bradford

    2014-01-01

    It has long been apparent to academic library administrators that the current technical services operations within libraries need to be redirected and refocused in terms of both format priorities and human resources. A number of developments and directions have made this reorganization imperative, many of which have been accelerated by the current economic crisis. All of the chapters detail some aspect of technical services reorganization due to downsizing and/or reallocation of human resources, retooling professional and support staff in higher level duties and/or non-MARC metadata, ""value-a

  17. The twenty-first century commercial space imperative

    CERN Document Server

    Young, Anthony

    2015-01-01

    Young addresses the impressive expansion across existing and developing commercial space business markets, with multiple private companies competing in the payload launch services sector. The author pinpoints the new markets, technologies, and players in the industry, as well as highlighting the overall reasons why it is important for us to develop space. NASA now relies on commercial partners to supply cargo and crew spacecraft and services to and from the International Space Station. The sizes of satellites are diminishing and their capabilities expanding, while costs to orbit are decreasing. Suborbital space tourism holds the potential of new industries and jobs. Commercial space exploration of the Moon and the planets also holds promise. All this activity is a catalyst for anyone interested in joining the developing space industry, from students and researchers to engineers and entrepreneurs. As more and more satellites and rockets are launched and the business of space is expanding at a signifi...

  18. Preparing for China in the Twenty-First Century

    National Research Council Canada - National Science Library

    Simmons, Brian

    1998-01-01

    With China's emergence in the next century as a world economic and military power, it is imperative that the United States continue an engagement approach to assist with China's continued development...

  19. Cosmopolitan cities: the frontier in the twenty-first century?

    Science.gov (United States)

    Sevincer, A Timur; Kitayama, Shinobu; Varnum, Michael E W

    2015-01-01

    People with independent (vs. interdependent) social orientation place greater priority on personal success, autonomy, and novel experiences over maintaining ties to their communities of origin. Accordingly, an independent orientation should be linked to a motivational proclivity to move to places that offer economic opportunities, freedom, and diversity. Such places are cities that can be called "cosmopolitan." In support of this hypothesis, Study 1 found that independently oriented young adults showed a preference to move to cosmopolitan rather than noncosmopolitan cities. Study 2 used a priming manipulation and demonstrated a causal impact of independence on residential preferences for cosmopolitan cities. Study 3 established ecological validity by showing that students who actually moved to a cosmopolitan city were more independent than those who either moved to a noncosmopolitan city or never moved. Taken together, the findings illuminate the role of cosmopolitan settlement in the contemporary cultural change toward independence and have implications for urban development and economic growth.

  20. Cosmopolitan cities: the frontier in the twenty-first century?

    OpenAIRE

    Sevincer, A. Timur; Kitayama, Shinobu; Varnum, Michael E. W.

    2015-01-01

    People with independent (vs. interdependent) social orientation place greater priority on personal success, autonomy, and novel experiences over maintaining ties to their communities of origin. Accordingly, an independent orientation should be linked to a motivational proclivity to move to places that offer economic opportunities, freedom, and diversity. Such places are cities that can be called “cosmopolitan.” In support of this hypothesis, Study 1 found that independently oriented young adu...

  1. Engagement and the Twenty-First Century University.

    Science.gov (United States)

    McGrath, C. Peter

    1999-01-01

    Argues for redefining the mission of the 21st-century university in order to focus on one overriding objective serving the public. Effective, expanding engagement with communities provides expertise and service to communities in ways in which universities are co-equal partners with other organizations and interests; it also provides rich…

  2. Capital in the twenty-first century: a critique.

    Science.gov (United States)

    Soskice, David

    2014-12-01

    I set out and explain Piketty's model of the dynamics of capitalism based on two equations and the r > g inequality (his central contradiction of capitalism). I then take issue with Piketty's analysis of the rebuilding of inequality from the 1970s to the present on three grounds: First, his model is based on the (neo-classical) assumption that companies are essentially passive actors who invest the amount savers choose to accumulate at equilibrium output - leading to the counterintuitive result that companies respond to the secular fall in growth (and hence their product markets) from the 1970s on by increasing their investment relative to output; this does indeed imply increased inequality on Piketty's β measure, the ratio of capital to output. I suggest a more realistic model in which businesses determine investment growth based on their expectations of output growth, with monetary policy bringing savings into line with business-determined investment; the implication of this model is that β does not change at all. And in fact as other recent empirical work which I reference has noted, β has not changed significantly over these recent decades. Hence Piketty's central analysis of the growth of contemporary inequality requires rethinking. Second, despite many references to the need for political economic analysis, Piketty's analysis of the growth of inequality in the period from the 1970s to the present is almost devoid of it, his explanatory framework being purely mathematical. I sketch what a political economic framework might look like during a period when politics was central to inequality. Third, inequality in fact rose on a variety of dimensions apart from β (including poverty which Piketty virtually makes no reference to in this period), but it is unclear what might explain why inequality rose in these other dimensions. © London School of Economics and Political Science 2014.

  3. Twenty-First Century Diseases: Commonly Rare and Rarely Common?

    Science.gov (United States)

    Daunert, Sylvia; Sittampalam, Gurusingham Sitta; Goldschmidt-Clermont, Pascal J

    2017-09-20

    Alzheimer's drugs are failing at a rate of 99.6%, and success rate for drugs designed to help patients with this form of dementia is 47 times less than for drugs designed to help patients with cancers ( www.scientificamerican.com/article/why-alzheimer-s-drugs-keep-failing/2014 ). How can it be so difficult to produce a valuable drug for Alzheimer's disease? Each human has a unique genetic and epigenetic makeup, thus endowing individuals with a highly unique complement of genes, polymorphisms, mutations, RNAs, proteins, lipids, and complex sugars, resulting in distinct genome, proteome, metabolome, and also microbiome identity. This editorial is taking into account the uniqueness of each individual and surrounding environment, and stresses the point that a more accurate definition of a "common" disorder could be simply the amalgamation of a myriad of "rare" diseases. These rare diseases are being grouped together because they share a rather constant complement of common features and, indeed, generally respond to empirically developed treatments, leading to a positive outcome consistently. We make the case that it is highly unlikely that such treatments, despite their statistical success measured with large cohorts using standardized clinical research, will be effective on all patients until we increase the depth and fidelity of our understanding of the individual "rare" diseases that are grouped together in the "buckets" of common illnesses. Antioxid. Redox Signal. 27, 511-516.

  4. United States Military Space: Into the Twenty-First Century

    Science.gov (United States)

    2002-01-01

    famous and articulate spokesmen for planetary science; Pale Blue Dot : A Vision of the Human Future in Space (New York: Random House, 1994) was one...and defining human characteristic. Carl Sagan is a primary spokesman for those who view spaceflight in scientific and ecological terms and see it as...Spacefaring Civilization (New York: Jeremy P. Tarcher/Putnam, 1999). Carl Sagan cofounded the Planetary Society in 1980 and was one of the most

  5. American marriage in the early twenty-first century.

    Science.gov (United States)

    Cherlin, Andrew J

    2005-01-01

    During the past century the U.S. family system has seen vast changes--in marriage and divorce rates, cohabitation, childbearing, sexual behavior, and women's work outside the home. Andrew Cherlin reviews these historic changes, noting that marriage remains the most common living arrangement for raising children, but that children, especially poor and minority children, are increasingly likely to grow up in single-parent families and to experience family instability. Cherlin describes the economic and cultural forces that have transformed family life. Job market changes have drawn married women into the work force and deprived less-educated men of the blue-collar jobs by which they traditionally supported their families. And effective contraception and legalized abortion have eroded the norm of marriage before childbearing. Cherlin notes that sentiment in favor of marriage appears to be stronger in the United States than in other developed countries. The share of U.S. adults who are likely to marry is higher, but so is the share likely to divorce. U.S. children are also more likely to live in single-parent families at some time in their childhood. Although nearly all Americans, whether poor or well-to-do, hold to marriage as an ideal, today marriage is increasingly optional. To a greater extent than ever before, individuals can choose whether to form a family on their own, in a cohabiting relationship, or in a marriage. Given U.S. patterns of swift transitions into and out of marriage and high rates of single parenthood, American policymakers eager to promote marriage are unlikely to be able to raise U.S. family stability to levels typical of other developed countries. Consequently, a family policy that relies too heavily on marriage will not help the many children destined to live in single-parent and cohabiting families--many of them poor--during their formative years. Assistance must be directed to needy families, regardless of their household structure. Policymakers must craft a careful balance of marriage-based and marriage-neutral programs to provide adequate support to American children.

  6. Renewal: Remaking America's Schools for the Twenty-First Century

    Science.gov (United States)

    Kwalwasser, Harold

    2012-01-01

    Harold Kwalwasser has put together a call to action for education reform that makes a clear case for what has to be done in order to educate all children to their full potential. He visited forty high-performing and transforming school districts, charters, parochial, and private schools to understand why they have succeeded where others have…

  7. What constitutes cerebral palsy in the twenty-first century?

    DEFF Research Database (Denmark)

    Smithers-Sheedy, Hayley; Badawi, Nadia; Blair, Eve

    2014-01-01

    AIM: Determining inclusion/exclusion criteria for cerebral palsy (CP) surveillance is challenging. The aims of this paper were to (1) define inclusion/exclusion criteria that have been adopted uniformly by surveillance programmes and identify where consensus is still elusive, and (2) provide...... (SCPE; 1976-1998). An expert panel used a consensus building technique, which utilized the SCPE 'decision tree' and the original 'What constitutes cerebral palsy?' paper as frameworks. RESULTS: CP surveillance programmes agree on key clinical criteria pertaining to the type, severity, and origin...

  8. Strategic nutrition: a vision for the twenty-first century.

    Science.gov (United States)

    Temple, Norman J

    2016-01-01

    It is now widely accepted that poor nutrition plays a major role in the epidemic of various diseases, including obesity, type 2 diabetes and CVD. There has also been much research regarding the role of related factors such as advertising and food prices. Many intervention studies have been carried out where attempts have been made to persuade people to modify their behaviour, such as by making dietary changes, in order to enhance health (health promotion). There has also been much debate on the potential of government policy as a tool for achieving these goals. Various proposals have been made, such as a tax on sugary drinks, the redirection of food subsidies and how the salt content of food can be reduced. However, the great majority of previous papers have considered only single aspects of the topics discussed here. The present paper reviews strategies for improving public health, both health promotion interventions and the use of government policy approaches. Topics discussed include providing advice for the general population and the design of food guides and food labels. This leads to the conclusion that we need an overall strategy that integrates this diverse body of information and formulates a comprehensive action plan. I propose the term 'strategic nutrition'. The implementation of this plan opens up a path to a major advance in public health.

  9. The twenty first century informatization and artificial intelligence system

    International Nuclear Information System (INIS)

    Noh, Jung Ho

    1999-12-01

    The contents of this book are competition of mental weakness and visually handicapped people, barbarian about the knowledge of commodity, we are living in notion of time of the agricultural age, parade of informatization of fool. Is there a successful case of informatization when it is done as others do?, what is technology of informatization?, there is mistake in traditional information technology from a system of thought, information system, and analysis of improvement of industrial structure case of development for program case of system installation, and a thief free society.

  10. Water and Food in the Twenty-First Century

    Science.gov (United States)

    de Marsily, Ghislain; Abarca-del-Rio, Rodrigo

    2016-03-01

    In 2000, the World population was 6.2 billion people; it reached 7 billion in 2012 and is expected to reach 9.5 billion (±0.4) in 2050 and 11 billion (±1.5) in 2100, according to the 2012 UN projections (Gerland et al. in Science 346:234-237, 2014). The trend after 2100 is still one of the global demographic growths, but after 2060, Africa is the only continent where the population would still increase. The amount of water consumed annually to produce the food necessary to meet the needs of the populations varies greatly between countries, from about 600 to 2500 m3/year per capita (Zimmer in L'empreinte eau. Les faces cachées d'une ressource vitale. Charles Léopold Meyer, Paris, 2013), depending on their wealth, their food habits, and the percentage of food waste they generate (on average, 30 % of the food produced is wasted). In 2000, the total food production was on the order of 3300 million tons (in cereal equivalents). In 2014, it is estimated that about 0.8 billion inhabitants of the planet suffer from hunger (FAO in World agriculture: towards 2030-2050. FAO, Rome, 2014. http://www.fao.org/docrep/004/Y3557E/y3557e00.HTM) and do not get the nutrition they need to be in good health or, in the case of children, to grow properly (both physically and intellectually). This food deficit was on the order of 40 million tons of cereal equivalents in 2014. The number of inhabitants with a food deficit was about 0.85 billion before the 2008 crisis and was decreasing annually, but it increased abruptly after 2008 up to 1 billion inhabitants and is slowly decreasing now. Assuming a World average water consumption for food of 1300 m3/year per capita in 2000, 1400 m3/year in 2050, and 1500 m3/year in 2100, a volume of water of around 8200 km3/year was needed in 2000, 13,000 km3/year will be needed in 2050, and 16,500 km3/year in 2100 (Marsily in L'eau, un trésor en partage. Dunod, Paris, 2009). Can bioenergy be added to food production? Will that much water be available on Earth, and where will it come from? Is climate change going to modify the answers to these questions? Can severe droughts occur? Can there be conflicts related to a food deficit? Some preliminary answers and scenarios for food production will be given in this paper from a hydrologist's viewpoint.

  11. NATO: Maintaining Relevance in the Twenty-First Century

    Science.gov (United States)

    2012-06-01

    proportionality.129 NATO displays Kantian respect toward the peoples of sovereign nation-states that provide legitimate governance for their citizens. The...qualities of Kantian respect. Most recently, NATO deems this function its “responsibility to protect.” Dr. Robert Jackson, professor of international...Relational Sovereignty,” 398. 35 The Kantian ethics of duty illustrate the moral imperative for the Alliance, given contemporary context, the perceived

  12. Seminar in Critical Inquiry Twenty-first Century Nuclear Systems

    Energy Technology Data Exchange (ETDEWEB)

    LeMone, D. V.

    2002-02-25

    Critical Inquiry, has not only been successful in increasing university student retention rate but also in improving student academic performance beyond the initial year of transition into the University. The seminar course herein reviewed is a balanced combination of student personal and academic skill development combined with a solid background in modern nuclear systems. It is a valid premise to assume that entering students as well as stakeholders of the general public demonstrate equal levels of capability. Nuclear systems is designed to give a broad and basic knowledge of nuclear power, medical, industrial, research, and military systems (nuclear systems) in 20-25 hours.

  13. Teaching Privacy in the Twenty-First Century

    Science.gov (United States)

    Edbrooke, Odette; Ambrose, Meg Leta

    2012-01-01

    What would Benjamin Franklin's Facebook page look like? Would he be "friends" with William Pierce, James Madison, or Alexander Hamilton? Would there have been a separate Facebook group for the framers of the Constitution, where they would have posted comments on the wall regarding the different stipulations that needed inclusion in the…

  14. War and Urban Terrain in the Twenty-First Century

    National Research Council Canada - National Science Library

    Murray, Williamson

    2000-01-01

    .... The spread of urban sprawl throughout the world is only part of the cause; the motivation of adversaries and friends alike to seek refuge in these environments offers a more compelling reason for the U.S...

  15. Italian Foreign Policy: Trends for the Twenty-First Century

    Science.gov (United States)

    2003-06-01

    without the love and support of my wife, Dr. Lucia Mariani. While my time at NPS marks only another episode in the unfailing support she has always... della Sinistra). In this transformation, however, the PDS lost support from the hard line Marxists that had supported the PCI. “The split between...Milan, FrancoAngeli, 1998), 95-113. 107 Lucio Caracciolo, Terra Incognita: Le radici geopolitiche della crisi italiana, (Rome, Gius. Laterza and

  16. Rheumatic Heart Disease in the Twenty-First Century.

    Science.gov (United States)

    Woldu, Bethel; Bloomfield, Gerald S

    2016-10-01

    Rheumatic heart disease (RHD) is a chronic valvular disease resulting after severe or repetitive episodes of acute rheumatic fever (ARF), an autoimmune response to group A Streptococcus infection. RHD has been almost eliminated with improved social and health infrastructure in affluent countries while it remains a neglected disease with major cause of morbidity and mortality in many low- and middle-income countries, and resource-limited regions of high-income countries. Despite our evolving understanding of the pathogenesis of RHD, there have not been any significant advances to prevent or halt progression of disease in recent history. Long-term penicillin-based treatment and surgery remain the backbone of a RHD control program in the absence of an effective vaccine. The advent of echocardiographic screening algorithms has improved the accuracy of diagnosing RHD and has shed light on the enormous burden of disease. Encouragingly, this has led to a rekindled commitment from researchers in the most affected countries to advocate and take bold actions to end this disease of social inequality.

  17. Redesigning the World Trade Organization for the Twenty-First ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    15 déc. 2009 ... Debra P. Steger enseigne le commerce international, le règlement des différends internationaux et le droit international des investissements ... Foundation ont conclu un accord de coopération scientifique et technologique en ...

  18. A Review of Twenty-First Century Higher Education

    Science.gov (United States)

    Chan, Shirley

    2018-01-01

    This article is predominantly concerned with the global challenges associated with managing an academic workforce in an era characterised by increased demand for higher education. In scrutinising global trends in higher education and academic workforce management, the article will address two research questions. First, what are the global trends…

  19. Gravity's ghost scientific discovery in the twenty-first century

    CERN Document Server

    Collins, Harry

    2011-01-01

    In theory, at least, gravitational waves do exist. We are constantly bathed in gravitational radiation, which is generated when stars explode or collide and a portion of their mass becomes energy that ripples out like a disturbance on the surface of a serene pond. But unfortunately no gravitational wave has ever been directly detected even though the search has lasted more than forty years. As the leading chronicler of the search for gravitational waves, Harry Collins has been right there with the scientists since the start. The result of his unprecedented access to the front lines of physical

  20. Sun Tzu's War Theory in the Twenty First Century

    National Research Council Canada - National Science Library

    Kuo, Li-sheng A

    2007-01-01

    .... In accordance with "winning without fighting a battle" scenario, I will argue that the battle-prevention theory school is the most suitable, and Sun Tzu's classic The Art of War is the best choice of approach...

  1. Projecting twenty-first century regional sea-level changes

    NARCIS (Netherlands)

    Slangen, A.B.A.; Carson, M.; Katsman, C.A.; van de Wal, R.S.W.; Köhl, A.; Vermeersen, L.L.A.; Stammer, D.

    2014-01-01

    We present regional sea-level projections and associated uncertainty estimates for the end of the 21 (st) century. We show regional projections of sea-level change resulting from changing ocean circulation, increased heat uptake and atmospheric pressure in CMIP5 climate models. These are combined

  2. Redesigning the World Trade Organization for the Twenty-First ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    2009-12-15

    Dec 15, 2009 ... Rather than simply analyzing the current functioning of the WTO, its problems and challenges, this volume is also a call to action. It lays out proposals that are likely to become a blueprint for reform of the WTO as an institution. Its contents are abundantly worthy of reflection and subsequent action.

  3. Virtual Reality: Teaching Tool of the Twenty-First Century?

    Science.gov (United States)

    Hoffman, Helene; Vu, Dzung

    1997-01-01

    Virtual reality-based procedural and surgical simulations promise to revolutionize medical training. A wide range of simulations representing diverse content areas and varied implementation strategies are under development or in early use. The new systems will make broad-based training experiences available for students at all levels without risks…

  4. Strategic Leader Competencies for the Twenty-First Century

    National Research Council Canada - National Science Library

    Becker, Bradley A

    2007-01-01

    ...: interpersonal skills, conceptual skills, and technical skills. From these three primary strategic leadership skills, there is a list of twenty-one competencies that a strategic leader should posses...

  5. The pediatrician's role in the twenty-first century.

    Science.gov (United States)

    Gracey, M

    1998-10-01

    The world's children comprise: (i) those in wealthy, industrialized countries; (ii) those from rapidly industrializing countries; (iii) minority groups including recently arrived immigrants in otherwise affluent and healthy societies; (iv) previously traditional people in rapid transition to urbanized, Western lifestyles; and (v) many millions living in grinding poverty in overcrowded, unhygienic conditions where child mortality is high and often due to malnutrition and infections. Industrialization, affluence, better housing, hygiene and nutrition, better clinical care and disease prevention have helped enhance child health in many countries over the past century. However, this is being offset by obesity, smoking, alcohol and drug abuse and social disruption, mental disease and high rates of violence including homicide and suicide. These 'new morbidities' are worse among minorities and in populations undergoing rapid social change. Social pressures including unemployment, depression and family dysfunction are important. Pediatricians must become active in decisions about the use of public resources in disease prevention, health education and more rational and equitable use of high technology. They should also be active advocates for children and their rights and advise governments about all issues that affect child health, protection and well-being. This is particularly so in the poorest and developing countries. There is a need for better international collaboration, training and exchange programs involving the International Pediatric Association, United Nations International Children's Emergency Fund, World Health Organization and other local, national and regional organizations to help overcome these problems as the next century draws near.

  6. A Multicultural Library: Strategies for the Twenty-First Century.

    Science.gov (United States)

    Nance-Mitchell, Veronica E.

    1996-01-01

    Library schools and institutions of higher education must be prepared to meet the demands of an increasingly multicultural population. They must be committed to affirmative action initiatives and the recruitment and retention of minority library students, and to motivating, networking, and providing job opportunities. (AEF)

  7. A Library Communication Audit for the Twenty-First Century

    Science.gov (United States)

    Chalmers, Mardi; Liedtka, Theresa; Bednar, Carol

    2006-01-01

    This article describes a case study relating to an internal communication audit conducted in a large academic library that assessed existing information channels during a period of organizational change in order to recommend improvements. A communications task force developed and administered a survey instrument and then analyzed data and reported…

  8. Is Dance a Sport?: A Twenty-First-Century Debate

    Science.gov (United States)

    Guarino, Lindsay

    2015-01-01

    This article discusses a new debate which has emerged for dancers. For many years dancers debated dance as art versus entertainment. This age-old debate still exists without a consensus, yet there is suddenly a new generation of dancers with a fresh debate. Legions of young performers are fervently proclaiming that their dance is actually a sport.…

  9. The twenty first century informatization and artificial intelligence system

    Energy Technology Data Exchange (ETDEWEB)

    Noh, Jung Ho

    1999-12-15

    The contents of this book are competition of mental weakness and visually handicapped people, barbarian about the knowledge of commodity, we are living in notion of time of the agricultural age, parade of informatization of fool. Is there a successful case of informatization when it is done as others do?, what is technology of informatization?, there is mistake in traditional information technology from a system of thought, information system, and analysis of improvement of industrial structure case of development for program case of system installation, and a thief free society.

  10. Seminar in Critical Inquiry Twenty-first Century Nuclear Systems

    International Nuclear Information System (INIS)

    LeMone, D. V.

    2002-01-01

    Critical Inquiry, has not only been successful in increasing university student retention rate but also in improving student academic performance beyond the initial year of transition into the University. The seminar course herein reviewed is a balanced combination of student personal and academic skill development combined with a solid background in modern nuclear systems. It is a valid premise to assume that entering students as well as stakeholders of the general public demonstrate equal levels of capability. Nuclear systems is designed to give a broad and basic knowledge of nuclear power, medical, industrial, research, and military systems (nuclear systems) in 20-25 hours

  11. Drone Warfare: Twenty-First Century Empire and Communications

    Directory of Open Access Journals (Sweden)

    Kevin Howley

    2017-02-01

    Full Text Available This paper, part of a larger project that examines drones from a social-construction of technology perspective, considers drone warfare in light of Harold Innis’s seminal work on empire and communication. Leveraging leading-edge aeronautics with advanced optics, data processing, and networked communication, drones represent an archetypal “space-biased” technology. Indeed, by allowing remote operators and others to monitor, select, and strike targets from half a world away, and in real-time, these weapon systems epitomize the “pernicious neglect of time” Innis sought to identify and remedy in his later writing. With Innis’s time-space dialectic as a starting point, then, the paper considers drones in light of a longstanding paradox of American culture: the impulse to collapse the geographical distance between the United States and other parts of the globe, while simultaneously magnifying the cultural difference between Americans and other peoples and societies. In the midst of the worldwide proliferation of drones, this quintessentially sublime technology embodies this (disconnect in important, profound, and ominous ways.

  12. Clinical Skills Assessment in the Twenty-First Century.

    Science.gov (United States)

    Elder, Andrew

    2018-05-01

    Clinical skills remain fundamental to the practice of medicine and form a core component of the professional identity of the physician. However, evidence exists to suggest that the practice of some clinical skills is declining, particularly in the United States. A decline in practice of any skill can lead to a decline in its teaching and assessment, with further decline in practice as a result. Consequently, assessment not only drives learning of clinical skills, but their practice. This article summarizes contemporary approaches to clinical skills assessment that, if more widely adopted, could support the maintenance and reinvigoration of bedside clinical skills. Crown Copyright © 2017. Published by Elsevier Inc. All rights reserved.

  13. A New Moon for the Twenty-First Century

    Science.gov (United States)

    Taylor, G. J.

    2000-08-01

    Thirty years of lunar sample studies supplemented by spotty remote sensing and geophysical data gave us the broad outline of the nature and geologic history of the Moon. Many cherished beliefs are now being questioned on the basis of global data returned by two bargain-basement missions sent to the Moon in the 1990s, Clementine and Lunar Prospector. These data are being integrated with new and old lunar sample data, to give us new, though still controversial, ideas about the nature of the Moon. Two articles in a special section of the Journal of Geophysical Research (Planets) illustrate the point. Brad Jolliff and his colleagues at Washington University in St. Louis, Jeff Gillis, Larry Haskin, Randy Korotev, and Mark Wieczorek (now at the Massachusetts Institute of Technology) divide the Moon's crust into distinct geochemical provinces quite different from the traditional highlands (or terra) and maria. In a separate paper, Randy Korotev presents a detailed analysis of a common rock type among the samples returned by the Apollo missions. This rock type, nicknamed enigmatically "LKFM," was thought by many of us to represent the composition of the lower crust everywhere on the Moon. Korotev argues that it is confined to only one of Jolliff's provinces. If correct, this changes our estimates of the composition of the lunar crust, hence of the entire Moon. Although other lunar scientists will scrutinize these new views of the Moon, it is clear that some long-held ideas about the Moon might be modified significantly, if not tossed out completely.

  14. Twenty-First Century Learning: Communities, Interaction and Ubiquitous Computing

    Science.gov (United States)

    Leh, Amy S.C.; Kouba, Barbara; Davis, Dirk

    2005-01-01

    Advanced technology makes 21st century learning, communities and interactions unique and leads people to an era of ubiquitous computing. The purpose of this article is to contribute to the discussion of learning in the 21st century. The paper will review literature on learning community, community learning, interaction, 21st century learning and…

  15. Virtual reality: teaching tool of the twenty-first century?

    Science.gov (United States)

    Hoffman, H; Vu, D

    1997-12-01

    Virtual reality (VR) is gaining recognition for its enormous educational potential. While not yet in the mainstream of academic medical training, many prototype and first-generation VR applications are emerging, with target audiences ranging from first- and second-year medical students to residents in advanced clinical training. Visualization tools that take advantage of VR technologies are being designed to provide engaging and intuitive environments for learning visually and spatially complex topics such as human anatomy, biochemistry, and molecular biology. These applications present dynamic, three-dimensional views of structures and their spatial relationships, enabling users to move beyond "real-world" experiences by interacting with or altering virtual objects in ways that would otherwise be difficult or impossible. VR-based procedural and surgical simulations, often compared with flight simulators in aviation, hold significant promise for revolutionizing medical training. Already a wide range of simulations, representing diverse content areas and utilizing a variety of implementation strategies, are either under development or in their early implementation stages. These new systems promise to make broad-based training experiences available for students at all levels, without the risks and ethical concerns typically associated with using animal and human subjects. Medical students could acquire proficiency and gain confidence in the ability to perform a wide variety of techniques long before they need to use them clinically. Surgical residents could rehearse and refine operative procedures, using an unlimited pool of virtual patients manifesting a wide range of anatomic variations, traumatic wounds, and disease states. Those simulated encounters, in combination with existing opportunities to work with real patients, could increase the depth and breadth of learners' exposure to medical problems, ensure uniformity of training experiences, and enhance the acquisition of clinical skills.

  16. Cyber Attacks and Terrorism: A Twenty-First Century Conundrum.

    Science.gov (United States)

    Albahar, Marwan

    2017-01-05

    In the recent years, an alarming rise in the incidence of cyber attacks has made cyber security a major concern for nations across the globe. Given the current volatile socio-political environment and the massive increase in the incidence of terrorism, it is imperative that government agencies rapidly realize the possibility of cyber space exploitation by terrorist organizations and state players to disrupt the normal way of life. The threat level of cyber terrorism has never been as high as it is today, and this has created a lot of insecurity and fear. This study has focused on different aspects of cyber attacks and explored the reasons behind their increasing popularity among the terrorist organizations and state players. This study proposes an empirical model that can be used to estimate the risk levels associated with different types of cyber attacks and thereby provide a road map to conceptualize and formulate highly effective counter measures and cyber security policies.

  17. Atomic Energy Board, twenty first annual report, 1977

    International Nuclear Information System (INIS)

    1978-01-01

    Progress is reported on the following: nuclear materials, nuclear power, application of radioisotopes and radiation, health and safety, and fundamental studies undertaken in the fields of physics, chemistry, metallurgy, medicine and geology during 1977. The supporting activities of the computer services, engineering sevices, waste disposal plant, instrumentation section, research reactor and analytical services are given for 1977. The report contains a bibliography of publications published by staff members and bursars of the Atomic Energy Board during 1977

  18. Strategic Leader Competencies for the Twenty-First Century

    National Research Council Canada - National Science Library

    Becker, Bradley A

    2007-01-01

    .... While all these skills and competencies play a role in successful strategic leadership, this paper will advocate that visioning, leading change, and interpersonal skills have the greatest impact on successful strategic leadership in this rapidly changing global environment.

  19. Tailings management for the twenty-first century

    International Nuclear Information System (INIS)

    Frost, S.E.

    1996-01-01

    The evolution of tailings management at Saskatchewan uranium mines is traced from the fifties to the nineties. Some of the problems with past systems are discussed. The new tailings systems now being proposed for the new operations currently undergoing environmental assessment in Saskatchewan are examined in detail. These new systems represent a change in tailings management philosophy, from keeping tailings high and dry on the surface, to placement of tailings in a low-energy regime within the water table. There they are removed from the active surface environment, avoiding future erosion problems, with a reduced likelihood of suffering intrusion from future human or animal activities. (author). 16 refs., 5 figs

  20. Accelerators for the twenty-first century - a review

    International Nuclear Information System (INIS)

    Wilson, E.J.N.

    1990-01-01

    Modern synchrotrons and storage rings are based upon the electrical technology of the 1900s boosted by the microwave radar techniques of World War II. This method of acceleration now seems to be approaching its practical limit. It is high time that we seek a new physical acceleration mechanism to provide the higher energies and luminosities needed to continue particle physics beyond the machines now on the stocks. Twenty years is a short time in which to invent, develop, and construct such a device. Without it, high-energy physics may well come to an end. Particle physicists and astrophysicists are invited to join accelerator specialists in the hunt for this new principle. This report analyses the present limitations of colliders and explores some of the directions in which one might look to find a new principle. Chapters cover proton colliders, electron-positron colliders, linear colliders, and two-beam accelerators; transverse fields, wake-field and beat-wave accelerators, ferroelectric crystals, and acceleration in astrophysics. (orig.)

  1. The global nitrogen cycle in the twenty-first century.

    Science.gov (United States)

    Fowler, David; Coyle, Mhairi; Skiba, Ute; Sutton, Mark A; Cape, J Neil; Reis, Stefan; Sheppard, Lucy J; Jenkins, Alan; Grizzetti, Bruna; Galloway, James N; Vitousek, Peter; Leach, Allison; Bouwman, Alexander F; Butterbach-Bahl, Klaus; Dentener, Frank; Stevenson, David; Amann, Marcus; Voss, Maren

    2013-07-05

    Global nitrogen fixation contributes 413 Tg of reactive nitrogen (Nr) to terrestrial and marine ecosystems annually of which anthropogenic activities are responsible for half, 210 Tg N. The majority of the transformations of anthropogenic Nr are on land (240 Tg N yr(-1)) within soils and vegetation where reduced Nr contributes most of the input through the use of fertilizer nitrogen in agriculture. Leakages from the use of fertilizer Nr contribute to nitrate (NO3(-)) in drainage waters from agricultural land and emissions of trace Nr compounds to the atmosphere. Emissions, mainly of ammonia (NH3) from land together with combustion related emissions of nitrogen oxides (NOx), contribute 100 Tg N yr(-1) to the atmosphere, which are transported between countries and processed within the atmosphere, generating secondary pollutants, including ozone and other photochemical oxidants and aerosols, especially ammonium nitrate (NH4NO3) and ammonium sulfate (NH4)2SO4. Leaching and riverine transport of NO3 contribute 40-70 Tg N yr(-1) to coastal waters and the open ocean, which together with the 30 Tg input to oceans from atmospheric deposition combine with marine biological nitrogen fixation (140 Tg N yr(-1)) to double the ocean processing of Nr. Some of the marine Nr is buried in sediments, the remainder being denitrified back to the atmosphere as N2 or N2O. The marine processing is of a similar magnitude to that in terrestrial soils and vegetation, but has a larger fraction of natural origin. The lifetime of Nr in the atmosphere, with the exception of N2O, is only a few weeks, while in terrestrial ecosystems, with the exception of peatlands (where it can be 10(2)-10(3) years), the lifetime is a few decades. In the ocean, the lifetime of Nr is less well known but seems to be longer than in terrestrial ecosystems and may represent an important long-term source of N2O that will respond very slowly to control measures on the sources of Nr from which it is produced.

  2. Twenty-first century pathology sign-out.

    Science.gov (United States)

    Tomlins, Scott; Robinson, Daniel; Penny, Robert J; Hess, Jay L

    2012-12-01

    It is difficult to imagine a field that is changing as rapidly as pathology. A convergence of factors including not only scientific and technological advances but also changes in business models is transforming the field, particularly in the area of cancer diagnostics. The authors examine 8 themes, or "forces of change," in pathology and speculate on how these will affect pathology sign-out and the future role of pathologists in patient care. Copyright © 2012 Elsevier Inc. All rights reserved.

  3. Schooling for Twenty-First-Century Socialism: Venezuela's Bolivarian Project

    Science.gov (United States)

    Griffiths, Tom G.

    2010-01-01

    The global dominance of neoliberal policy prescriptions in recent decades has been well documented, with particular implications for educational systems. These include reduced public expenditure and provision, the promotion of individual (parental) choice, competition, increased user-pays and the privatisation of education. Against this…

  4. Continuing Professional Development in the Twenty-First Century.

    Science.gov (United States)

    Sachdeva, Ajit K

    2016-01-01

    The critical role of continuing professional development (CPD) in supporting delivery of patient care of the highest quality and safety is receiving significant attention in the current era of monumental change. CPD is essential in efforts to ensure effectiveness of new models of health care delivery, improve outcomes and value in health care, address external regulations, and foster patient engagement. The unique features of CPD; the use of special mastery-based teaching, learning, and assessment methods, and other special interventions to promote excellence; and direct involvement of a variety of key stakeholders differentiate CPD from undergraduate medical education and graduate medical education. The needs of procedural specialties relating to CPD are different from those of primary care disciplines and require special attention for the greatest impact. Simulation-based education and training can be very useful in CPD aimed at improving outcomes and promoting patient safety. Preceptoring, proctoring, mentoring, and coaching should be used routinely to address specific needs in CPD. Distinct CPD strategies are necessary for retraining, reentry, and remediation. Participation in CPD programs can be encouraged by leveraging the joy of learning, which should drive physicians and surgeons to strive continually to be the best in their professional work.

  5. Marketing of science in the twenty-first century

    International Nuclear Information System (INIS)

    Trivelpiece, A.

    1987-01-01

    The author gives a brief review of marketing of science from the 1930's to the present. He discusses the fact that at the present the scientific community is doing a lousy job of marketing and the fact that it is very important that this be reversed because science and technology have become absolutely essential to our future economic health and development. The four steps which he proposes will help with this problem are: (1) government, universities and industry working together to try and insure that there's an adequate basis of curiosity-driven research; (2) scientist making an effort to insure that they have enough political power to be taken seriously; (3) an adjustment to scientist thinking to reflect the fiscal realities of what the next generation of scientific facilities will cost; and (4) a need for public support

  6. Global Mental Health for Twenty First Century Education

    Science.gov (United States)

    Moradi Sheykhjan, Tohid; Rajeswari, K.

    2016-01-01

    Delivering mental health programs and services in education is not a new idea but it is time to bring mental health into focus. Momentum is gaining in terms of raising awareness, increasing understanding, and articulating strategies for advancing and integrating mental health. We need to know that all over the world everything is unique and…

  7. Deep Ecology: Educational Possibilities for the Twenty-First Century

    Science.gov (United States)

    Capra, Fritjof

    2013-01-01

    Fritjof Capra's two-part lecture presents the fundamentals of systems thinking and sustainability along with the power of an ecologically comprehensive theory to shape education to fit the needs of human development in relation to the environment. Dr. Capra aims for the big picture emphasizing that effective learning is a system embedded in the…

  8. The Neglected Patent Controversies in the Twenty First Century

    Directory of Open Access Journals (Sweden)

    Birgitte Andersen

    2003-01-01

    Full Text Available Na virada do século, assistimos a um reforço do sistema de patentes. No entanto, os gestores de políticas deixam sistematicamente de lado as controvérsias sobre patentes. Este artigo examina criticamente as complexas relações entre, por um lado, as razões para os direitos de patente e, por outro lado, seus efeitos sociais e econômicos. Só quando entendermos essa relação, seremos capazes de projetar regimes adequados de Direitos de Propriedade Intelectual (DPI para o novo paradigma tecnoeconômico de microeletrônica baseada em conhecimento e invenções de amplo alcance implementadas por computador. O foco se concentra nas razões morais, nas razões de incentivo econômico, e nas razões de aumento da concorrência e "proteção do talento empresarial no mercado", e nas razões econômicas para organizar ciência, tecnologia e criatividade. Afirma-se aqui que os sistemas de patentes não são neutros, eles estabelecem as regras do jogo em que indivíduos e organizações são os jogadores.At the turn of the century we have seen a tightening of the patent system. However, policy makers systematically neglect the patent controversies. This article critically reviews the complex relationships between the rationales for patent rights on the one hand, and the social and economic effects of such on the other hand. Only when we understand this relationship, will we be able to design appropriate Intellectual Property Right (IPR regimes for the new technoeconomic paradigm of knowledge-based micro-electronics and computer implemented pervasive inventions. Focus is on moral rationales, economic incentive rationales, increased competition and "market protection of entrepreneurial talent" rationales, and the economic rationales for organizing science, technology and creativity. It is argued that patent systems are not neutral, but set the rules of the game in which individuals and organizations are the players.

  9. Land, ecology, and democracy. A twenty-first century view.

    Science.gov (United States)

    Newton, Julianne Lutz; Freyfogle, Eric T; Sullivan, William C

    2006-01-01

    Land is necessary for human flourishing, and its use remains a compelling concern for every society, even those wherein industrialization has sharply diminished people's awareness of land. Here, we consider land's influence on political thinking, particularly thinking about democratic governance, and ask if this influence might be made more beneficial by the application of lessons drawn from ecological research. We identify five such lessons and apply them in six ways to the institution of private-property rights in nature--the main legal institution that allocates and perpetuates power over land--and to modern assumptions about liberal individualism and rights to health. We conclude that people can live well on land, promoting both human and land health, only in governmental forms engaging more citizens more deliberatively than now typical even in democracies. Implications for political institutions and human welfare are discussed under conditions of globalizing interdependence.

  10. Biomolecular electronics in the twenty-first century.

    Science.gov (United States)

    Phadke, R S

    2001-01-01

    A relentless decrease in the size of silicon-based microelectronics devices is posing problems. The most important among these are limitations imposed by quantum-size effects and instabilities introduced by the effects of thermal fluctuations. These inherent envisaged problems of present-day systems have prompted scientists to look for alternative options. Advancement in the understanding of natural systems such as photosynthetic apparatuses and genetic engineering has enabled attention to be focused on the use of biomolecules. Biomolecules have the advantages of functionality and specificity. The invention of scanning tunneling microscopy and atomic force microscopy has opened up the possibility of addressing and manipulating individual atoms and molecules. Realization of the power of self-assembly principles has opened a novel approach for designing and assembling molecular structures with desired intricate architecture. The utility of molecules such as DNA as a three-dimensional, high-density memory element and its capability for molecular computing have been fully recognized but not yet realized. More time and effort are necessary before devices that can transcend existing ones will become easily available. An overview of the current trends that are envisaged to give rich dividends in the next millennium are discussed.

  11. Empowerment of Women through Education in Twenty First Century

    Science.gov (United States)

    Moradi Sheykhjan, Tohid; Rajeswari, K.; Jabari, Kamran

    2014-01-01

    This article explores theoretical and practical issues related to the impact of women's education in their empowerment. The development of women's education is discussed in this study. As women's education has become one of the key development objectives in the recent decades, the concept of empowerment has been tied to the range of activities…

  12. Talent management for the twenty-first century.

    Science.gov (United States)

    Cappelli, Peter

    2008-03-01

    Most firms have no formal programs for anticipating and fulfilling talent needs, relying on an increasingly expensive pool of outside candidates that has been shrinking since it was created from the white-collar layoffs of the 1980s. But the advice these companies are getting to solve the problem--institute large-scale internal development programs--is equally ineffective. Internal development was the norm back in the 1950s, and every management-development practice that seems novel today was routine in those years--from executive coaching to 360-degree feedback to job rotation to high-potential programs. However, the stable business environment and captive talent pipelines in which such practices were born no longer exist. It's time for a fundamentally new approach to talent management. Fortunately, companies already have such a model, one that has been well honed over decades to anticipate and meet demand in uncertain environments: supply chain management. Cappelli, a professor at the Wharton School, focuses on four practices in particular. First, companies should balance make-versus-buy decisions by using internal development programs to produce most--but not all--of the needed talent, filling in with outside hiring. Second, firms can reduce the risks in forecasting the demand for talent by sending smaller batches of candidates through more modularized training systems in much the same way manufacturers now employ components in just-in-time production lines. Third, companies can improve their returns on investment in development efforts by adopting novel cost-sharing programs. Fourth, they should seek to protect their investments by generating internal opportunities to encourage newly trained managers to stick with the firm. Taken together, these principles form the foundation for a new paradigm in talent management: a talent-on-demand system.

  13. Glasgow conference

    International Nuclear Information System (INIS)

    Fraser, Gordon

    1994-01-01

    The biennial 'Rochester' International Conferences on High Energy Physics which tick the rhythm of high energy physics progress reflect the dominance of the 'Standard Model' - the picture of electroweak and quark/gluon interactions in a simple framework of six weaklyinteracting particles (leptons) and six quarks. Despite its limited intellectual appeal, after a decade of intense probing the Standard Model still refuses to budge

  14. An IEEE 802.11 EDCA Model with Support for Analysing Networks with Misbehaving Nodes

    Directory of Open Access Journals (Sweden)

    Szott Szymon

    2010-01-01

    Full Text Available We present a novel model of IEEE 802.11 EDCA with support for analysing networks with misbehaving nodes. In particular, we consider backoff misbehaviour. Firstly, we verify the model by extensive simulation analysis and by comparing it to three other IEEE 802.11 models. The results show that our model behaves satisfactorily and outperforms other widely acknowledged models. Secondly, a comparison with simulation results in several scenarios with misbehaving nodes proves that our model performs correctly for these scenarios. The proposed model can, therefore, be considered as an original contribution to the area of EDCA models and backoff misbehaviour.

  15. Reactive GTS Allocation Protocol for Sporadic Events Using the IEEE 802.15.4

    Directory of Open Access Journals (Sweden)

    Mukhtar Azeem

    2014-01-01

    by the IEEE 802.15.4 standard. The proposed control protocol ensures that a given offline sporadic schedule can be adapted online in a timely manner such that the static periodic schedule has not been disturbed and the IEEE 802.15.4 standard compliance remains intact. The proposed protocol is simulated in OPNET. The simulation results are analyzed and presented in this paper to prove the correctness of the proposed protocol regarding the efficient real-time sporadic event delivery along with the periodic event propagation.

  16. Analysis Of Impact Of Various Parameters On BER Performance For IEEE 802.11b

    Directory of Open Access Journals (Sweden)

    Nilesh B. Kalani

    2015-08-01

    Full Text Available Abstract This paper discusses about IEEE 802.11b simulation model implemented using LabVIEW software and its analyses for impact on bit error rate BER for different parameters as channel type channel number data transmission rate and packet size. Audio file is being transmitted processed and analyzed using the model for various parameters. This paper gives analysis of BER verses ESN0 for various parameter like data rate packet size and communication channel for the IEEE 802.11b simulation model generated using LabVIEW. It is proved that BER can be optimized by tweaking different parameters of wireless communication system.

  17. Spectrum Hole Identification in IEEE 802.22 WRAN using Unsupervised Learning

    OpenAIRE

    V. Balaji; S. Anand; C.R. Hota; G. Raghurama

    2016-01-01

    In this paper we present a Cooperative Spectrum Sensing (CSS) algorithm for Cognitive Radios (CR) based on IEEE 802.22Wireless Regional Area Network (WRAN) standard. The core objective is to improve cooperative sensing efficiency which specifies how fast a decision can be reached in each round of cooperation (iteration) to sense an appropriate number of channels/bands (i.e. 86 channels of 7MHz bandwidth as per IEEE 802.22) within a time constraint (channel sensing time). To meet this objectiv...

  18. Self-Coexistence among IEEE 802.22 Networks: Distributed Allocation of Power and Channel

    OpenAIRE

    Sayef Azad Sakin; Md. Abdur Razzaque; Mohammad Mehedi Hassan; Atif Alamri; Nguyen H. Tran; Giancarlo Fortino

    2017-01-01

    Ensuring self-coexistence among IEEE 802.22 networks is a challenging problem owing to opportunistic access of incumbent-free radio resources by users in co-located networks. In this study, we propose a fully-distributed non-cooperative approach to ensure self-coexistence in downlink channels of IEEE 802.22 networks. We formulate the self-coexistence problem as a mixed-integer non-linear optimization problem for maximizing the network data rate, which is an NP-hard one. This work explores a s...

  19. IEEE 802.11e (EDCA analysis in the presence of hidden stations

    Directory of Open Access Journals (Sweden)

    Xijie Liu

    2011-07-01

    Full Text Available The key contribution of this paper is the combined analytical analysis of both saturated and non-saturated throughput of IEEE 802.11e networks in the presence of hidden stations. This approach is an extension to earlier works by other authors which provided Markov chain analysis to the IEEE 802.11 family under various assumptions. Our approach also modifies earlier expressions for the probability that a station transmits a packet in a vulnerable period. The numerical results provide the impact of the access categories on the channel throughput. Various throughput results under different mechanisms are presented.

  20. Washington Conference

    International Nuclear Information System (INIS)

    Anon.

    1981-01-01

    The 1981 Particle Accelerator Conference was held in Washington from 11-13 March. It was the ninth in the series of meetings organized in the USA which differ from the 'International' meetings in their coverage of the full range of accelerator engineering and technology, including applications outside e field of high energy physics. The Conference took place under the cloud of further budget cuts for Fiscal Year 1982 in the USA which the Department of Energy has applied in line with the financial policy of the new administration. Coming on top of many years of budget trimming which have reduced the number of high energy physics Laboratories funded by the DOE to three (Brookhaven, Fermilab, Stanford - Cornell is funded by the National Science Foundation) and reduced the exploitation of these Laboratories to less than half of their potential, the new cuts did not exactly help to boost morale. Nevertheless, the huge amount of tailed work in accelerator physics and technology which was presented at the Conference showed how alive the field is

  1. The tree identify protocol of IEEE 1394 in uCRL

    NARCIS (Netherlands)

    C. Shankland; M.B. van der Zwaag

    1998-01-01

    textabstractWe specify the tree identify protocol of the IEEE 1394 high performance serial multimedia bus at three different levels of detail using $mu$CRL. We use the cones and foci verification technique of Groote and Springintveld to show that the descriptions are equivalent under branching

  2. A 1-GHz charge pump PLL frequency synthesizer for IEEE 1394b PHY

    DEFF Research Database (Denmark)

    Ji, J.; Liu, H.; Li, Q.

    2012-01-01

    This paper presents an implementation of multi-rate SerDes transceiver for IEEE 1394b applications. Simple and effective pre-emphasis and equalizer circuits are used at transmitter and receiver, respectively. A phase interpolator based clock and data recovery circuit with optimized linearity is a...

  3. Energy-aware path selection metric for IEEE 802.11s wireless mesh networking

    CSIR Research Space (South Africa)

    Mhlanga, MM

    2009-01-01

    Full Text Available The IEEE 802.11s working group has commenced activities, which would lead to the development of a standard for wireless mesh networks (WMNs). The draft of 802.11s introduces a new path selection metric called airtime link metric. However...

  4. Energy-aware path selection metric for IEEE 802.11s wireless mesh networking

    CSIR Research Space (South Africa)

    Mhlanga, MM

    2009-08-01

    Full Text Available The IEEE 802.11s working group has commenced activities, which would lead to the development of a standard for wireless mesh networks (WMNs). The draft of 802.11s introduces a new path selection metric called airtime link metric. However...

  5. IEEE 8023 ethernet, current status and future prospects at the LHC

    CERN Document Server

    Dobinson, Robert W; Haas, S; Martin, B; Le Vine, M J; Saka, F

    2000-01-01

    The status of the IEEE 802.3 standard is reviewed and prospects for the future, including the new 10 Gigabit version of Ethernet, are discussed. The relevance of Ethernet for experiments at the CERN Large Hadron Collider is considered, with emphasis on on-line applications and areas which are technically challenging. 8 Refs.

  6. IEEE 802.3 Ethernet, Current Status and Future Prospects at the LHC

    CERN Document Server

    Dobinson, Robert W; Haas, S W; Martin, B; Le Vine, M J; Saka, F

    2000-01-01

    The status of the IEEE 802.3 standard is reviewed and prospects for the future, including the new 10 Gigabit version of Ethernet, are discussed. The relevance of Ethernet for experiments at the CERN Large Hadron Collider is considered, with emphasis on on-line applications and areas which are technically challenging.

  7. Performance Evaluations for IEEE 802.15.4-based IoT Smart Home Solution

    Directory of Open Access Journals (Sweden)

    Nga Dinh

    2016-09-01

    Full Text Available The Internet of Things (IoT is going to be a market-changing force for a variety of real-time applications such as e-healthcare, home automation, environmental monitoring, and industrial automation. Low power wireless communication protocols offering long lifetime and high reliability such as the IEEE 802.15.4 standard have been a key enabling technology for IoT deployments and are deployed for home automation recently. The issues of the IEEE 802.15.4 networks have moved from theory to real world deployments. The work presented herein intends to demonstrate the use of the IEEE 802.15.4 standard in recent IoT commercial products for smart home applications: the Smart Home Starter Kit. The contributions of the paper are twofold. First, the paper presents how the IEEE 802.15.4 standard is employed in Smart Home Starter Kit. In particular, network topology, network operations, and data transfer mode are investigated. Second, network performance metrics such as end-to-end (E2E delay and frame reception ratio (FRR are evaluated by experiments. In addition, the paper discusses several directions for future improvements of home automation commercial products.

  8. The IEEE-SA patent policy update under the lens of EU competition law

    NARCIS (Netherlands)

    Kanevskaia, Olia; Zingales, Nicolo

    2016-01-01

    In 2015, the Institute of Electrical and Electronics Engineers (IEEE) Standardization Association made some controversial changes to its patent policy. The changes include a recommended method of calculation of FRAND royalty rates, and a request to members holding a standard essential patent (SEP)

  9. 0011-0030.IEEE 754: 64 Bit Double Precision FloatsThis.pdf | 01 ...

    Indian Academy of Sciences (India)

    Home; public; Volumes; reso; 021; 01; 0011-0030.IEEE 754: 64 Bit Double Precision FloatsThis.pdf. 404! error. The page your are looking for can not be found! Please check the link or use the navigation bar at the top. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. 29th Mid-year meeting. Posted on 19 ...

  10. Evaluation of the Effects of Hidden Node Problems in IEEE 802.15.7 Uplink Performance.

    Science.gov (United States)

    Ley-Bosch, Carlos; Alonso-González, Itziar; Sánchez-Rodríguez, David; Ramírez-Casañas, Carlos

    2016-02-06

    In the last few years, the increasing use of LEDs in illumination systems has been conducted due to the emergence of Visible Light Communication (VLC) technologies, in which data communication is performed by transmitting through the visible band of the electromagnetic spectrum. In 2011, the Institute of Electrical and Electronics Engineers (IEEE) published the IEEE 802.15.7 standard for Wireless Personal Area Networks based on VLC. Due to limitations in the coverage of the transmitted signal, wireless networks can suffer from the hidden node problems, when there are nodes in the network whose transmissions are not detected by other nodes. This problem can cause an important degradation in communications when they are made by means of the Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) access control method, which is used in IEEE 802.15.7 This research work evaluates the effects of the hidden node problem in the performance of the IEEE 802.15.7 standard We implement a simulator and analyze VLC performance in terms of parameters like end-to-end goodput and message loss rate. As part of this research work, a solution to the hidden node problem is proposed, based on the use of idle patterns defined in the standard. Idle patterns are sent by the network coordinator node to communicate to the other nodes that there is an ongoing transmission. The validity of the proposed solution is demonstrated with simulation results.

  11. Adaptive Radio Resource Allocation in Hierarchical QoS Scheduling for IEEE 802.16 Systems

    DEFF Research Database (Denmark)

    Wang, Hua; Dittmann, Lars

    2007-01-01

    Future mobile communication systems such as IEEE 802.16 are expected to deliver a variety of multimedia services with diverse QoS requirements. To guarantee the QoS provision, appropriate scheduler architecture and scheduling algorithms have to be carefully designed. In this paper, we propose...

  12. Evaluation of H.264/AVC over IEEE 802.11p vehicular networks

    Science.gov (United States)

    Rozas-Ramallal, Ismael; Fernández-Caramés, Tiago M.; Dapena, Adriana; García-Naya, José Antonio

    2013-12-01

    The capacity of vehicular networks to offer non-safety services, like infotainment applications or the exchange of multimedia information between vehicles, have attracted a great deal of attention to the field of Intelligent Transport Systems (ITS). In particular, in this article we focus our attention on IEEE 802.11p which defines enhancements to IEEE 802.11 required to support ITS applications. We present an FPGA-based testbed developed to evaluate H.264/AVC (Advanced Video Coding) video transmission over vehicular networks. The testbed covers some of the most common situations in vehicle-to-vehicle and roadside-to-vehicle communications and it is highly flexible, allowing the performance evaluation of different vehicular standard configurations. We also show several experimental results to illustrate the quality obtained when H.264/AVC encoded video is transmitted over IEEE 802.11p networks. The quality is measured considering two important parameters: the percentage of recovered group of pictures and the frame quality. In order to improve performance, we propose to substitute the convolutional channel encoder used in IEEE 802.11p for a low-density parity-check code encoder. In addition, we suggest a simple strategy to decide the optimum number of iterations needed to decode each packet received.

  13. Oldest Packet Drop (OPD): a Buffering Mechanism for Beaconing in IEEE 802.11p VANETs

    NARCIS (Netherlands)

    van Eenennaam, Martijn; Hendriks, Luuk; Karagiannis, Georgios; Heijenk, Geert

    2011-01-01

    The IEEE 802.11p MAC technology can be used to provide connectivity for real-time vehicle control known as Cooperative Adaptive Cruise Control. Due to the real-time nature of this system, it is paramount the delay of the received information is as small as possible. This paper researches the Oldest

  14. A Comprehensive Taxonomy and Analysis of IEEE 802.15.4 Attacks

    Directory of Open Access Journals (Sweden)

    Yasmin M. Amin

    2016-01-01

    Full Text Available The IEEE 802.15.4 standard has been established as the dominant enabling technology for Wireless Sensor Networks (WSNs. With the proliferation of security-sensitive applications involving WSNs, WSN security has become a topic of great significance. In comparison with traditional wired and wireless networks, WSNs possess additional vulnerabilities which present opportunities for attackers to launch novel and more complicated attacks against such networks. For this reason, a thorough investigation of attacks against WSNs is required. This paper provides a single unified survey that dissects all IEEE 802.15.4 PHY and MAC layer attacks known to date. While the majority of existing references investigate the motive and behavior of each attack separately, this survey classifies the attacks according to clear metrics within the paper and addresses the interrelationships and differences between the attacks following their classification. The authors’ opinions and comments regarding the placement of the attacks within the defined classifications are also provided. A comparative analysis between the classified attacks is then performed with respect to a set of defined evaluation criteria. The first half of this paper addresses attacks on the IEEE 802.15.4 PHY layer, whereas the second half of the paper addresses IEEE 802.15.4 MAC layer attacks.

  15. Interference Measurements in IEEE 802.11 Communication Links Due to Different Types of Interference Sources

    NARCIS (Netherlands)

    van Bloem, J.W.H.; Schiphorst, Roelof; Kluwer, Taco; Slump, Cornelis H.

    2012-01-01

    The number of wireless devices (smartphones, laptops, sensors) that use the 2.4 GHz ISM band is rapidly increasing. The most common communication system in this band is Wi-Fi (IEEE 802.11b/g/n). For that reason coexistence between Wi-Fi and other systems becomes more and more important. In this

  16. Performance Analysis of Non-saturated IEEE 802.11 DCF Networks

    Science.gov (United States)

    Zhai, Linbo; Zhang, Xiaomin; Xie, Gang

    This letter presents a model with queueing theory to analyze the performance of non-saturated IEEE 802.11 DCF networks. We use the closed queueing network model and derive an approximate representation of throughput which can reveal the relationship between the throughput and the total offered load under finite traffic load conditions. The accuracy of the model is verified by extensive simulations.

  17. IEEE 802.11 Wireless LANs: Performance Analysis and Protocol Refinement

    Directory of Open Access Journals (Sweden)

    Chatzimisios P.

    2005-01-01

    Full Text Available The IEEE 802.11 protocol is emerging as a widely used standard and has become the most mature technology for wireless local area networks (WLANs. In this paper, we focus on the tuning of the IEEE 802.11 protocol parameters taking into consideration, in addition to throughput efficiency, performance metrics such as the average packet delay, the probability of a packet being discarded when it reaches the maximum retransmission limit, the average time to drop a packet, and the packet interarrival time. We present an analysis, which has been validated by simulation that is based on a Markov chain model commonly used in the literature. We further study the improvement on these performance metrics by employing suitable protocol parameters according to the specific communication needs of the IEEE 802.11 protocol for both basic access and RTS/CTS access schemes. We show that the use of a higher initial contention window size does not considerably degrade performance in small networks and performs significantly better in any other scenario. Moreover, we conclude that the combination of a lower maximum contention window size and a higher retry limit considerably improves performance. Results indicate that the appropriate adjustment of the protocol parameters enhances performance and improves the services that the IEEE 802.11 protocol provides to various communication applications.

  18. Performance characterization of the IEEE 802.11 signal transmission over a multimode fiber PON

    Science.gov (United States)

    Maksymiuk, L.; Siuzdak, J.

    2014-11-01

    In this paper there are presented measurements concerning performance analysis of the IEEE 802.11 signal distribution over multimode fiber based passive optical network. In the paper there are addressed three main sources of impairments: modal noise, frequency response fluctuation of the multimode fiber and non-linear distortion of the signal in the receiver.

  19. Multitemporal Very High Resolution From Space: Outcome of the 2016 IEEE GRSS Data Fusion Contest

    NARCIS (Netherlands)

    Mou, L.; Zhu, X.; Vakalopoulou, M.; Karantzalos, K.; Paragios, N.; Saux, Le B.; Moser, G.; Tuia, D.

    2017-01-01

    In this paper, the scientific outcomes of the 2016 Data Fusion Contest organized by the Image Analysis and Data Fusion Technical Committee of the IEEE Geoscience and Remote Sensing Society are discussed. The 2016 Contest was an open topic competition based on a multitemporal and multimodal dataset,

  20. Outdoor Long-Range WLANs : A Lesson for IEEE 802.11ah

    NARCIS (Netherlands)

    Aust, Stefan; Venkatesha Prasad, R.; Niemegeers, Ignas G M M

    2015-01-01

    Several service applications have been reported by many who proposed the use of wireless LANs (WLANs) over a wide variety of outdoor deployments. In particular, the upcoming IEEE 802.11ah WLAN protocol will enable a longer transmission range between WLAN access points (APs) and stations (STAs) up to

  1. Incorporating antenna beamswitching technique into drivers for IEEE802.11 WLAN devices

    CSIR Research Space (South Africa)

    Mofolo, M

    2015-11-23

    Full Text Available the beamswitching technique for switched parasitic array (SPA) and electronically steerable parasitic array radiator (ESPAR) antennas in the drivers for IEEE802.11 WLAN devices. The modifications of the open source drivers (ath5k and ath9k) to enable real...

  2. Conference summaries

    International Nuclear Information System (INIS)

    Phillips, G.J.

    1985-01-01

    The 113 papers presented at this conference covered the areas of 1) fuel design, development and production; 2) nuclear plant safety; 3) nuclear instrumentation; 4) public and regulatory matters; 5) developments and opportunities in fusion; 6) fuel behaviour under normal operating conditions; 7) nuclear plant design and operations; 8) materials science and technology; 9) nuclear power issues; 10) fusion technology; 11) fuel behaviour under accident conditions; 12) large scale fuel channel replacement programs; 13) thermalhydraulics experimental studies; 14) reactor physics and analysis; 15) applications of accelerators; 16) fission product release and severe fuel damage under accident conditions; 17) thermalhydraulics modeling and assessments; 18) waste management and the environment; and 20) new reactor concepts

  3. A versatile trigger and synchronization module with IEEE1588 capabilities and EPICS support

    International Nuclear Information System (INIS)

    Lopez, J.M.; Ruiz, M.; Borrego, J.; Arcas, G. de; Barrera, E.; Vega, J.

    2010-01-01

    Event timing and synchronization are two key aspects to improve in the implementation of distributed data acquisition (dDAQ) systems such as the ones used in fusion experiments. It is also of great importance the integration of dDAQ in control and measurement networks. This paper analyzes the applicability of the IEEE1588 and EPICS standards to solve these problems, and presents a hardware module implementation based in both of them that allow adding these functionalities to any DAQ. The IEEE1588 standard facilitates the integration of event timing and synchronization mechanisms in distributed data acquisition systems based on IEEE 803.3 (Ethernet). An optimal implementation of such system requires the use of network interface devices which include specific hardware resources devoted to the IEE1588 functionalities. Unfortunately, this is not the approach followed in most of the large number of applications available nowadays. Therefore, most solutions are based in software and use standard hardware network interfaces. This paper presents the development of a hardware module (GI2E) with IEEE1588 capabilities which includes USB, RS232, RS485 and CAN interfaces. This permits to integrate any DAQ element that uses these interfaces in dDAQ systems in an efficient and simple way. The module has been developed with Motorola's Coldfire MCF5234 processor and National Semiconductors's PHY DP83640T, providing it with the possibility to implement the PTP protocol of IEEE1588 by hardware, and therefore increasing its performance over other implementations based in software. To facilitate the integration of the dDAQ system in control and measurement networks the module includes a basic Input/Output Controller (IOC) functionality of the Experimental Physics and Industrial Control System (EPICS) architecture. The paper discusses the implementation details of this module and presents its applications in advanced dDAQ applications in the fusion community.

  4. NATO Conference

    CERN Document Server

    Lynn, W

    1975-01-01

    The contents of this volume involve selection, emendation and up-dating of papers presented at the NATO Conference "Mathe­ matical Analysis of Decision problems in Ecology" in Istanbul, Turkey, July 9-13, 1973. It was sponsored by the System Sciences Division of NATO directed by Dr. B. Bayraktar with local arrange­ ments administered by Dr. Ilhami Karayalcin, professor of the Department of Industrial Engineering at the Technical University of Istanbul. It was organized by A. Charnes, University professor across the University of Texas System, and Walter R.Lynn, Di­ rector of the School of Civil and Environmental Engineering at Cornell Unjversity. The objective of the conference was to bring together a group of leading researchers from the major sciences involved in eco­ logical problems and to present the current state of progress in research of a mathematical nature which might assist in the solu­ tion of these problems. Although their presentations are not herein recorded, the key­ note address of Dr....

  5. EGC Conferences

    CERN Document Server

    Ritschard, Gilbert; Pinaud, Bruno; Venturini, Gilles; Zighed, Djamel; Advances in Knowledge Discovery and Management

    This book is a collection of representative and novel works done in Data Mining, Knowledge Discovery, Clustering and Classification that were originally presented in French at the EGC'2012 Conference held in Bordeaux, France, on January 2012. This conference was the 12th edition of this event, which takes place each year and which is now successful and well-known in the French-speaking community. This community was structured in 2003 by the foundation of the French-speaking EGC society (EGC in French stands for ``Extraction et Gestion des Connaissances'' and means ``Knowledge Discovery and Management'', or KDM). This book is intended to be read by all researchers interested in these fields, including PhD or MSc students, and researchers from public or private laboratories. It concerns both theoretical and practical aspects of KDM. The book is structured in two parts called ``Knowledge Discovery and Data Mining'' and ``Classification and Feature Extraction or Selection''. The first part (6 chapters) deals with...

  6. Munich conference

    Energy Technology Data Exchange (ETDEWEB)

    Anon.

    1988-10-15

    'The Standard Model has survived impact for another year', declared Don Perkins of Oxford, summarizing the 24th International Conference on High Energy Physics held in Munich from 4-10 August. 'But is this a triumph or a frustration for physics?' he added. The twin pillars of the Standard Model, the electroweak unification of electromagnetism and the weak nuclear force, and the field theory (quantum chromodynamics) of the quark-gluon interactions responsible for the strong nuclear force, have not trembled since the electroweak unification went to the textbooks in 1983, but from time to time small cracks have appeared which might have gone on to shake the theory severely, if not undermine it. Major conference summarizers have got used to singing the praises of the Standard Model, but this year at Munich even detailed examination failed to reveal any serious cracks, while looking deeper into physics even some anomalous results hinting at gaps in understanding have either gone away or have diminished credibility.

  7. Munich conference

    International Nuclear Information System (INIS)

    Anon.

    1988-01-01

    'The Standard Model has survived impact for another year', declared Don Perkins of Oxford, summarizing the 24th International Conference on High Energy Physics held in Munich from 4-10 August. 'But is this a triumph or a frustration for physics?' he added. The twin pillars of the Standard Model, the electroweak unification of electromagnetism and the weak nuclear force, and the field theory (quantum chromodynamics) of the quark-gluon interactions responsible for the strong nuclear force, have not trembled since the electroweak unification went to the textbooks in 1983, but from time to time small cracks have appeared which might have gone on to shake the theory severely, if not undermine it. Major conference summarizers have got used to singing the praises of the Standard Model, but this year at Munich even detailed examination failed to reveal any serious cracks, while looking deeper into physics even some anomalous results hinting at gaps in understanding have either gone away or have diminished credibility

  8. IEEE Nonlinear Optics 1994: Materials, Fundamentals, and Applications. Conference Held in Waikoloa, Hawaii on July 25-29, 1994

    Science.gov (United States)

    1994-07-29

    Centro de Investigaciones en Optica, Apartado Postal 948, 37000 Le6n, Gu’znajuato, Mixico tel: .t.(47)17-5823 W. Luis Mochin Laboratorio de Cernavaca...Instituto de Fisica , Universidad Nacional Aut6noma de MWzico, Apartado Postal 139-B, 62191 Cnuernavaca, Morelos, Mixico. tel: ÷(73)17-5388 Second harmonic...at conductor surfaces with continuous profiles W. Luis Mochin Instituto de Fisica , Universidad Nacional Aut6noma de Mkxico, Apartado Postal 139-B

  9. IEEE Conference Record of 1978 Thirteenth Pulse Power Modulator Symposium, Buffalo, New York, 20-22 June 1978.

    Science.gov (United States)

    1978-01-01

    tubes must be made to fire simultane- ously. As the rising edge of the output pulse becomes faster, jitter and drift in_____ turn become more important...S. In separate tests this oil In combination with mylar - The jetting action from the perforations in the tube copper windings had a breakdown strength...173 SESSIO VuI - SWITCHES Wni AN I~RMW CAPAB~LY’ A 100-kY W0A Long-Pukse Switch Tube , £6.L MeNera, EIMAC Division of Varian

  10. IEEE Std 383-1974: IEEE standard for type test of Class IE electric cables, field splices, and connections for nuclear power generating stations

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This standard provides direction for establishing type tests which may be used in qualifying Class 1E electric cables, field splices, and other connections for service in nuclear power generating stations. General guidelines for qualifications are given in IEEE Std 323-1974, Standard for Qualifying Class IE Electric Equipment for Nuclear Power Generating Stations. Categories of cables covered are those used for power control and instrumentation services. Though intended primarily to pertain to cable for field installation, this guide may also be used for the qualification of internal wiring of manufactured devices. This guide does not cover cables for service within the reactor vessel

  11. Title - EFARS - Conference (Uninvited)

    OpenAIRE

    Lohrey, MC; Lawrence, AS

    2016-01-01

    Abstract - EFARS - Conference (Uninvited) "Notes" - EFARS - Conference (Uninvited) In preparation (Publication status) Yes, full paperYes, abstract onlyNo (Peer reviewed?) "Add a comment" - EFARS - Conference - Uninvited

  12. Conference Proceedings

    International Nuclear Information System (INIS)

    2002-01-01

    This volume contains the unedited proceedings of the Second Annual Conference on Managing Electricity Price Volatility. There were a total of eleven papers presented, dealing with a variety of issues affecting price volatility. Subjects treated included: new power generation development in Alberta; an analysis of electricity supply and demand to predict future price volatility; the effect of government intervention in the Alberta electricity market; risk management in volatile energy markets; an analysis of Alberta's capacity to supply its own internal electric power needs; the impact of increased electricity import and export capacity on price fluctuation in Alberta; improving market liquidity in Alberta; using weather derivatives to offset price risk; the impact of natural gas prices on electricity price volatility; capitalizing on advancements in online trading; and strategies for businesses to keep operating through times of price volatility. In most cases only overhead viewgraphs are available

  13. MUSME Conference

    CERN Document Server

    Martinez, Eusebio

    2015-01-01

    This volume contains the Proceedings of MUSME 2014, held at Huatulco in Oaxaca, Mexico, October 2014. Topics include analysis and synthesis of mechanisms; dynamics of multibody systems; design algorithms for mechatronic systems; simulation procedures and results; prototypes and their performance; robots and micromachines; experimental validations; theory of mechatronic simulation; mechatronic systems; and control of mechatronic systems. The MUSME symposium on Multibody Systems and Mechatronics was held under the auspices of IFToMM, the International Federation for Promotion of Mechanism and Machine Science, and FeIbIM, the Iberoamerican Federation of Mechanical Engineering. Since the first symposium in 2002, MUSME events have been characterised by the way they stimulate the integration between the various mechatronics and multibody systems dynamics disciplines, present a forum for facilitating contacts among researchers and students mainly in South American countries, and serve as a joint conference for the ...

  14. Cairo conference.

    Science.gov (United States)

    McMichael, A J

    1994-09-03

    The United Nations Conference on Population and Development in Cairo in September, 1994, will evoke criticism of the inability of governments to act quickly enough to avert demographic and environmental crises. Rapid population growth has clear implications for public health. Globally there now occur anthropogenic changes in atmospheric composition, the degradation of fertile lands and ocean fisheries, an accelerating loss of biodiversity, and the social and ecological problems of massive urbanization. In the future, per capita consumption levels will increase in burgeoning populations of developing countries, thus adding to the environmental impacts of overconsuming rich countries. By the end of the decade there will be over six billion people, of whom one half will live in cities. These demographic and environmental trends, if translated into climatic change, regional food shortages, and weakened ecosystems, would adversely affect human health. The World Health Organization is likely to concentrate only on accessible family planning and promotion of health for women and families. Continuing asymmetric child-saving aid, unaccompanied by substantial aid to help mobilize the social and economic resources needed to reduce fertility, may delay the demographic transition in poor countries and potentiate future public health disasters. As a result of recent reductions in fertility, even in Sub-Saharan Africa, average family sizes have been halved. Yet the demographic momentum will double population by 2050. The biosphere is a complex of ecosystems and, if unsustained, it could not fulfill the productive, cleansing, and protective functions on which life depends. The Cairo conference must therefore recognize that sustaining human health is a prime reason for concern about population growth and models of economic development.

  15. Performance Analysis of the IEEE 802.11p Multichannel MAC Protocol in Vehicular Ad Hoc Networks.

    Science.gov (United States)

    Song, Caixia

    2017-12-12

    Vehicular Ad Hoc Networks (VANETs) employ multichannel to provide a variety of safety and non-safety applications, based on the IEEE 802.11p and IEEE 1609.4 protocols. The safety applications require timely and reliable transmissions, while the non-safety applications require efficient and high throughput. In the IEEE 1609.4 protocol, operating interval is divided into alternating Control Channel (CCH) interval and Service Channel (SCH) interval with an identical length. During the CCH interval, nodes transmit safety-related messages and control messages, and Enhanced Distributed Channel Access (EDCA) mechanism is employed to allow four Access Categories (ACs) within a station with different priorities according to their criticality for the vehicle's safety. During the SCH interval, the non-safety massages are transmitted. An analytical model is proposed in this paper to evaluate performance, reliability and efficiency of the IEEE 802.11p and IEEE 1609.4 protocols. The proposed model improves the existing work by taking serval aspects and the character of multichannel switching into design consideration. Extensive performance evaluations based on analysis and simulation help to validate the accuracy of the proposed model and analyze the capabilities and limitations of the IEEE 802.11p and IEEE 1609.4 protocols, and enhancement suggestions are given.

  16. IEEE Std 381-1977: IEEE standard criteria for type tests of Class 1E modules used in nuclear power generating stations

    International Nuclear Information System (INIS)

    Anon.

    1992-01-01

    This document describes the basic requirements of a type test program with the objective of verifying that a module used as Class 1E equipment in a nuclear power generating station meets or exceeds its design specifications. This document is limited to class 1E modules from and including the sensor through the logic circuitry of the final actuation devices. Except for those that are part of a module, switchgear, cables, connections, motors, valve actuators, station batteries, and penetrations are not included and are covered by other IEEE documents. The purpose of this document is to supplement the procedures and requirements given in IEEE Std 323-1974 [24] for type testing Class 1E modules, thereby providing directions for establishment of a type test program which will obtain the required test data and yield the required documentation of test methods and results. This standard is structured to present to the user the principal performance characteristics and environmental parameters which must be considered in designing a type test program for any give Class 1E module. These modules range from tiny sensors to complete racks or cabinets full of equipment that may be located inside or outside containment. The Class 1E modules are required to perform their function before, during, or after, or all, any design basis event specified for the module. The vast variety of modules covered by this document precludes the listing here of specific requirements for each type test

  17. Proceedings of the CERI 2004 petrochemical conference : Positioning for recovery. CD-ROM ed.

    International Nuclear Information System (INIS)

    2004-01-01

    This conference provided a networking opportunity for those involved in Canada's petrochemical industry. The conditions that affect the industry were discussed along with opportunities for maintaining a competitive position in a global context. Topics of discussion included supply shortages, high costs and major shifts in international trade. It was emphasized that innovation is the key for the industry to maintain its market in a strengthening world economy. The conference featured the following 6 sessions: (1) petrochemicals in a strengthening world economy, (2) twenty-first century natural gas, the other energy crisis, (3) electricity, (4) the feedstock future, upgrading and integration opportunities, (5) adding value to resources, and (6) innovation and opportunity, prospects for new processes. Investment growth and implications for Canada were also outlined along with the challenge of product movement, including new approaches to pipeline shipments, rail transport and maritime transport. The conference featured 23 presentations, of which 9 have been indexed separately for inclusion in this database. tabs., figs

  18. Conference summaries

    Energy Technology Data Exchange (ETDEWEB)

    Reynolds, Tim [Inta Communication Limited for European Service Network/ DG Research, Trillium House, 32 New Street, St. Neots, Cambridge PE19 1AJ (United Kingdom)

    2004-07-01

    The summaries were derived from presentations, interviews and discussions at the conference. The summaries are given at two levels, overall for the conference and for specific sessions as follows: 1) Overall Conference: 'A Sound Scientific Basis for Serious Decisions; 2) Sessions on EC Policy and Socio-Political Issues: 'Promoting Safety and Protecting Society'; 3) Session on P and T: 'Partitioning and Transmutation: A Technical Fix or Technical Training?'; 4) Sessions on Geological Disposal and Research Networking: 'No Technical Barriers to Geological Disposal'. First an overall summary of Euradwaste '04 is presented. Significant progress was made on the technical and scientific basis for geological disposal of radioactive waste during the European Commission's Fifth EURATOM Framework Programme for Research (FP5). Deep geological disposal is technically feasible now and can demonstrate the guarantees of long-term isolation and protection of the public. In parallel, socio-political studies have produced methodologies for constructive dialogue with potential host communities that reflect the honesty and openness expected by a democratic society. A harmonized legislative framework for nuclear safety and waste disposal across the enlarged European Union is currently being discussed. Disposal in deep (> 300 metre) geological repositories, the favoured strategy in Europe for long-lived high-level radioactive waste, is now possible. The Sessions on EC Policy and Socio-Political Issues are summarized as follows. The opening day of Euradwaste '04 focused on European Commission policy, including the proposed Directives on disposal of radioactive waste and nuclear safety and socio-political aspects including governance and decision making, public perception/acceptance of waste disposal and its sustainability. A decision on the proposed package will now be made after Union enlargement. Public agreement on the siting of

  19. Hybrid Polling Method for Direct Link Communication for IEEE 802.11 Wireless LANs

    Directory of Open Access Journals (Sweden)

    Woo-Yong Choi

    2008-10-01

    Full Text Available The direct link communication between STAtions (STAs is one of the techniques to improve the MAC performance of IEEE 802.11 infrastructure networks. For the efficient direct link communication, in the literature, the simultaneous polling method was proposed to allow the multiple direct data communication to be performed simultaneously. However, the efficiency of the simultaneous polling method is affected by the interference condition. To alleviate the problem of the lower polling efficiency with the larger interference range, the hybrid polling method is proposed for the direct link communication between STAs in IEEE 802.11 infrastructure networks. By the proposed polling method, we can integrate the sequential and simultaneous polling methods properly according to the interference condition. Numerical examples are also presented to show the medium access control (MAC performance improvement by the proposed polling method.

  20. 2011 IEEE Visualization Contest Winner: Visualizing Unsteady Vortical Behavior of a Centrifugal Pump

    KAUST Repository

    Otto, Mathias

    2012-09-01

    In the 2011 IEEE Visualization Contest, the dataset represented a high-resolution simulation of a centrifugal pump operating below optimal speed. The goal was to find suitable visualization techniques to identify regions of rotating stall that impede the pump\\'s effectiveness. The winning entry split analysis of the pump into three parts based on the pump\\'s functional behavior. It then applied local and integration-based methods to communicate the unsteady flow behavior in different regions of the dataset. This research formed the basis for a comparison of common vortex extractors and more recent methods. In particular, integration-based methods (separation measures, accumulated scalar fields, particle path lines, and advection textures) are well suited to capture the complex time-dependent flow behavior. This video (http://youtu.be/ oD7QuabY0oU) shows simulations of unsteady flow in a centrifugal pump. © 2012 IEEE.

  1. The Exploration of Network Coding in IEEE 802.15.4 Networks

    Directory of Open Access Journals (Sweden)

    Deze Zeng

    2011-01-01

    communication protocol should be energy efficient. The IEEE 802.15.4 is designed as a standard protocol for low power, low data rate, low complexity, and short range connections in WPANs. The standard supports allocating several numbers of collision-free guarantee time slots (GTSs within a superframe for some time-critical transmissions. Recently, COPE was proposed as a promising network coding architecture to essentially improve the throughput of wireless networks. In this paper, we exploit the network coding technique at coordinators to improve energy efficiency of the WPAN. Some related practical issues, such as GTS allocation and multicast, are also discussed in order to exploit the network coding opportunities efficiently. Since the coding opportunities are mostly exploited, our proposal achieves both higher energy efficiency and throughput performance than the original IEEE 802.15.4.

  2. The IEEE 1355 Standard. Developments, performance and application in high energy physics

    International Nuclear Information System (INIS)

    Haas, S.

    1998-12-01

    The data acquisition systems of the next generation High Energy Physics experiments at the Large Hadron Collider (LHC) at CERN will rely on high-speed point-to-point links and switching networks for their higher level trigger and event building systems. This thesis provides a detailed evaluation of the DS-Link and switch technology, which is based on the IEEE 1355 standard for Heterogeneous Interconnect (HIC). The DS-Link is a bidirectional point-to-point serial interconnect, operating at speeds up to 200 MBaud. The objective of this thesis was to study the performance of the IEEE 1355 link and switch technology and to demonstrate that switching networks using this technology would scale to meet the requirements of the High Energy Physics applications

  3. VARNOST BREZŽIČNIH OMREŽIJ PO STANDARDU IEEE 802.11

    OpenAIRE

    Štumberger, Matej

    2013-01-01

    Diplomska naloga se osredotoča na problem varovanja brezžičnih omrežij, zasnovanih po standardu IEEE 802.11. Opisano je združenje IEEE in njihova specifikacija standardov z oznako 802, prav tako pa so opisani tudi standardi, protokoli in tehnike varovanja in zaščite omrežij, ki delujejo po tej specifikaciji. Predstavljeno je tudi trenutno stanje varnosti brezžičnih omrežij na področju mesta Ptuj, opisani in prikazani pa so tudi različni pristopi za zlorabo brezžičnih omrežij, skupaj s program...

  4. Design Optimization of Cyber-Physical Distributed Systems using IEEE Time-sensitive Networks (TSN)

    DEFF Research Database (Denmark)

    Pop, Paul; Lander Raagaard, Michael; Craciunas, Silviu S.

    2016-01-01

    to the optimization of distributed cyber-physical systems using real-time Ethernet for communication. Then, we formulate two novel optimization problems related to the scheduling and routing of TT and AVB traffic in TSN. Thus, we consider that we know the topology of the network as well as the set of TT and AVB flows......In this paper we are interested in safety-critical real-time applications implemented on distributed architectures supporting the Time-SensitiveNetworking (TSN) standard. The ongoing standardization of TSN is an IEEE effort to bring deterministic real-time capabilities into the IEEE 802.1 Ethernet...... standard supporting safety-critical systems and guaranteed Quality-of-Service. TSN will support Time-Triggered (TT) communication based on schedule tables, Audio-Video-Bridging (AVB) flows with bounded end-to-end latency as well as Best-Effort messages. We first present a survey of research related...

  5. Transient Stability Improvement of IEEE 9 Bus System Using Power World Simulator

    Directory of Open Access Journals (Sweden)

    Kaur Ramandeep

    2016-01-01

    Full Text Available The improvement of transient stability of power system was one of the most challenging research areas in power engineer.The main aim of this paper was transient stability analysis and improvement of IEEE 9 bus system. These studies were computed using POWER WORLD SIMULATOR. The IEEE 9 bus system was modelled in power world simulator and load flow studies were performed to determine pre-fault conditions in the system using Newton-Raphson method. The transient stability analysis was carried out using Runga method during three-phase balanced fault. For the improvement transient stability, the general methods adopted were fast acting exciters, FACT devices and addition of parallel transmission line. These techniques play an important role in improving the transient stability, increasing transmission capacity and damping low frequency oscillations.

  6. Integration of IEEE 1451 and HL7 exchanging information for patients' sensor data.

    Science.gov (United States)

    Kim, Wooshik; Lim, Suyoung; Ahn, Jinsoo; Nah, Jiyoung; Kim, Namhyun

    2010-12-01

    HL7 (Health Level 7) is a standard developed for exchanging incompatible healthcare information generated from programs or devices among heterogenous medical information systems. At present, HL7 is growing as a global standard. However, the HL7 standard does not support effective methods for treating data from various medical sensors, especially from mobile sensors. As ubiquitous systems are growing, HL7 must communicate with various medical transducers. In the area of sensor fields, IEEE 1451 is a group of standards for controlling transducers and for communicating data from/to various transducers. In this paper, we present the possibility of interoperability between the two standards, i.e., HL7 and IEEE 1451. After we present a method to integrate them and show the preliminary results of this approach.

  7. A note on bound constraints handling for the IEEE CEC'05 benchmark function suite.

    Science.gov (United States)

    Liao, Tianjun; Molina, Daniel; de Oca, Marco A Montes; Stützle, Thomas

    2014-01-01

    The benchmark functions and some of the algorithms proposed for the special session on real parameter optimization of the 2005 IEEE Congress on Evolutionary Computation (CEC'05) have played and still play an important role in the assessment of the state of the art in continuous optimization. In this article, we show that if bound constraints are not enforced for the final reported solutions, state-of-the-art algorithms produce infeasible best candidate solutions for the majority of functions of the IEEE CEC'05 benchmark function suite. This occurs even though the optima of the CEC'05 functions are within the specified bounds. This phenomenon has important implications on algorithm comparisons, and therefore on algorithm designs. This article's goal is to draw the attention of the community to the fact that some authors might have drawn wrong conclusions from experiments using the CEC'05 problems.

  8. Qualification of cables to IEEE standards 323-1974 and 383-1974

    International Nuclear Information System (INIS)

    Hosticka, C.; Kingsbury, E.R.; Bruhin, A.C.

    1980-01-01

    Wire and Cable manufacturers generally qualify products for class IE application by envelope type testing to user specifications and environmental conditions recommended by IEEE Standards 323-1974 and 383-1974. The General Electric Wire and Cable Business Department recently completed two such qualification programs. Cable constructions tested were 600V control cables and 600 V, 2kV, and 15kV power cables insulated with flame resistant mineral filled crosslinked polyethylene. The 15kV samples included taped field splices. In the second test program, the steam pressure-temperature profile included a simulated main steam line break. Test specimens were wrapped on grounded mandrels and were electrically loaded throughout the simulated LOCA tests. After completion of environmental testing, samples were subjected to the IEEE 383 simulated post-LOCA test. 6 refs

  9. Qualification of cables to IEEE standards 323-1974 and 383-1974

    International Nuclear Information System (INIS)

    Hosticka, C.; Kingsbury, E.R.; Bruhin, A.C.

    1980-01-01

    Wire and Cable manufacturers generally qualify products for class IE application by envelope type testing to user specifications and environmental conditions recommended by IEEE Standards 323-1974 and 383-1974. The General Electric Wire and Cable Business Department recently completed two such qualification programs. Cable constructions tested were 600V control cables and 600 V, 2KV, and 15KV power cables insulated with flame resistant mineral filled crosslinked polyethylene. The 15KV samples included taped field splices. In the second test program, the steam pressure-temperature profile included a simulated main steam line break. Test specimens were wrapped on grounded mandrels and were electrically loaded throughout the simulated LOCA tests. After completion of environmental testing, samples were subjected to the IEEE 383 simulated post-LOCA test. 6 refs

  10. A Novel IEEE 802.15.4e DSME MAC for Wireless Sensor Networks.

    Science.gov (United States)

    Sahoo, Prasan Kumar; Pattanaik, Sudhir Ranjan; Wu, Shih-Lin

    2017-01-16

    IEEE 802.15.4e standard proposes Deterministic and Synchronous Multichannel Extension (DSME) mode for wireless sensor networks (WSNs) to support industrial, commercial and health care applications. In this paper, a new channel access scheme and beacon scheduling schemes are designed for the IEEE 802.15.4e enabled WSNs in star topology to reduce the network discovery time and energy consumption. In addition, a new dynamic guaranteed retransmission slot allocation scheme is designed for devices with the failure Guaranteed Time Slot (GTS) transmission to reduce the retransmission delay. To evaluate our schemes, analytical models are designed to analyze the performance of WSNs in terms of reliability, delay, throughput and energy consumption. Our schemes are validated with simulation and analytical results and are observed that simulation results well match with the analytical one. The evaluated results of our designed schemes can improve the reliability, throughput, delay, and energy consumptions significantly.

  11. A Fast MAC-Layer Handover for an IEEE 802.16e-Based WMAN

    Science.gov (United States)

    Ray, Sayan K.; Pawlikowski, Krzysztof; Sirisena, Harsha

    We propose a modification of the IEEE 802.16e hard handover (HHO) procedure, which significantly reduces the handover latency constraint of the original HHO procedure in IEEE 802.16e networks. It allows a better handling of the delay-sensitive traffic by avoiding unnecessary time-consuming scanning and synchronization activity as well as simplifies the network re-entry procedure. With the help of the backhaul network, it reduces the number of control messages in the original handover policy, making the handover latency acceptable also for real-time streaming traffic. Preliminary performance evaluation studies show that the modified handover procedure is able to reduce the total handover latency by about 50%.

  12. A network architecture for precision formation flying using the IEEE 802.11 MAC Protocol

    Science.gov (United States)

    Clare, Loren P.; Gao, Jay L.; Jennings, Esther H.; Okino, Clayton

    2005-01-01

    Precision Formation Flying missions involve the tracking and maintenance of spacecraft in a desired geometric formation. The strong coupling of spacecraft in formation flying control requires inter-spacecraft communication to exchange information. In this paper, we present a network architecture that supports PFF control, from the initial random deployment phase to the final formation. We show that a suitable MAC layer for the application protocol is IEEE's 802.11 MAC protocol. IEEE 802.11 MAC has two modes of operations: DCF and PCF. We show that DCF is suitable for the initial deployment phase while switching to PCF when the spacecraft are in formation improves jitter and throughput. We also consider the effect of routing on protocol performance and suggest when it is profitable to turn off route discovery to achieve better network performance.

  13. Capacity Evaluation for IEEE 802.16e Mobile WiMAX

    Directory of Open Access Journals (Sweden)

    Chakchai So-In

    2010-01-01

    Full Text Available We present a simple analytical method for capacity evaluation of IEEE 802.16e Mobile WiMAX networks. Various overheads that impact the capacity are explained and methods to reduce these overheads are also presented. The advantage of a simple model is that the effect of each decision and sensitivity to various parameters can be seen easily. We illustrate the model by estimating the capacity for three sample applications—Mobile TV, VoIP, and data. The analysis process helps explain various features of IEEE 802.16e Mobile WiMAX. It is shown that proper use of overhead reducing mechanisms and proper scheduling can make an order of magnitude difference in performance. This capacity evaluation method can also be used for validation of simulation models.

  14. Contributions to the 14th IEEE/NPSS Symposium on fusion engineering

    International Nuclear Information System (INIS)

    Navarro, A.P.; Almoguera, L.; Alonso Gozalo, J.; Alonso Candenas, J.; Blaumoser, M.

    1992-01-01

    Three communications about the TJ-II device, under construction at CIEMAT with preferential support from EURATOM, were presented to the 14th IEEE/NPSS Symposium on Fusion Engineering and are collected in this report. The first one describes in detail the device and its present status of design and construction. The remaining two deal with the two most critical components of the project: the vacuum vessel and the central hard conductor. (author) 16 fig. 16 ref

  15. Utilizing reliability concepts in the development of IEEE recommended good practices for nuclear plant maintenance

    International Nuclear Information System (INIS)

    Gradin, L.P.

    1986-01-01

    This paper presents information describing the concern for nuclear power plant electrical equipment maintenance and the IEEE Nuclear Power Engineering Committee's method to address that concern. That method includes the creation of Working Group 3.3, ''Maintenance Good Practices'' which is developing specific maintenance good practice documents, supporting technical information exchange, and providing a vehicle to promote practices which can reduce cost and enhance plant safety. The foundation for that effort is the utilization of Reliability concepts

  16. Practical support for Lean Six Sigma software process definition using IEEE software engineering standards

    CERN Document Server

    Land, Susan K; Walz, John W

    2012-01-01

    Practical Support for Lean Six Sigma Software Process Definition: Using IEEE Software Engineering Standards addresses the task of meeting the specific documentation requirements in support of Lean Six Sigma. This book provides a set of templates supporting the documentation required for basic software project control and management and covers the integration of these templates for their entire product development life cycle. Find detailed documentation guidance in the form of organizational policy descriptions, integrated set of deployable document templates, artifacts required in suppo

  17. [Mobile Health: IEEE Standard for Wearable Cuffless Blood Pressure Measuring Devices].

    Science.gov (United States)

    Zhou, Xia; Wu, Wenli; Bao, Shudi

    2015-07-01

    IEEE Std 1708-2014 breaks through the traditional standards of cuff based blood pressure measuring devices and establishes a normative definition of wearable cuffless blood pressure measuring devices and the objective performance evaluation of this kind of devices. This study firstly introduces the background of the new standard. Then, the standard details will be described, and the impact of cuffless blood pressure measuring devices with the new standard on manufacturers and end users will be addressed.

  18. IEEE guide for general principles of reliability analysis of nuclear power generating station protection systems

    International Nuclear Information System (INIS)

    Anon.

    1975-01-01

    Presented is the Institute of Electrical and Electronics Engineers, Inc. (IEEE) guide for general principles of reliability analysis of nuclear power generating station protection systems. The document has been prepared to provide the basic principles needed to conduct a reliability analysis of protection systems. Included is information on qualitative and quantitative analysis, guides for failure data acquisition and use, and guide for establishment of intervals

  19. IEEE standard for qualifying class IE equipment for nuclear power generating stations

    International Nuclear Information System (INIS)

    Anon.

    1974-01-01

    The Institute of Electrical and Electrical Engineers, Inc. (IEEE) standards for electrical equipment (Class IE) for nuclear power generating stations are given. The standards are to provide guidance for demonstrating and documenting the adequacy of electric equipment used in all Class IE and interface systems. Representative in containment design basis event conditions for the principal reactor types are included in the appendixes for guidance in enviromental simulation

  20. An improved IEEE 802.11 protocol for reliable data transmission in power distribution fault diagnosis

    Energy Technology Data Exchange (ETDEWEB)

    Campoccia, F.; Di Silvestre, M.L.; Sanseverino, E.R.; Zizzo, G. [Palermo Univ., Palermo (Italy)

    2010-10-15

    In power systems, on-line transmission between local units and the central unit can be done by means of power line communications or wireless technology. During an electrical fault, the reliability of the distribution system depends on the security of the timely protective and restorative actions on the network. This paper focused on the WiFi system because of its economy and ease of installation. However, WiFi systems are typically managed by the IEEE 802.11 protocol, which is not reliable in terms of security in data communication. In WiFi networks, data is divided into packets and sent in succession to reduce errors within the radio channel. The IEEE 802.11 protocol has high probability for loss of packets or delay in their transmission. In order to ensure the reliability of data transmission times between two terminal units connected by WiFi stations, a new protocol was derived by modifying the IEEE 802.11. The improvements of the new protocol were highlighted and its capability for the diagnostic service was verified. The modified protocol eliminates the danger of collisions between packets and optimizes the transmission time for sending information. 6 refs., 7 tabs., 8 figs.