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Sample records for 6th ieee international

  1. 6th International Microbeam Workshop

    SciTech Connect

    Dr Kevin M. Prise

    2004-01-01

    The extended abstracts which are submitted here present a summary of the proceedings of the 6th International Workshop/12th LH Gray Workshop: Microbeam Probes of Cellular Radiation Response, held at St. Catherine's College, University of Oxford, UK on March, 29th-31st, 2003. In 1993 the 4th LH Gray Workshop entitled ''Microbeam Probes of Cellular Radiation Response'' was held at the Gray Cancer Institute in Northwood. This was organized by Prof BD Michael, Dr M. Folkard and Dr KM Prise and brought together 40 participants interested in developing and applying new microbeam technology to problems in radiation biology (1). The workshop was an undoubted success and has spawned a series of subsequent workshops every two years. In the past, these workshops have been highly successful in bringing together groups interested in developing and applying micro-irradiation techniques to the study of cell and tissue damage by ionizing radiations. Following the first microbeam workshop, there has been a rapid growth in the number of centres developing radiobiology microbeams, or planning to do so and there are currently 15-20 worldwide. Much of the recent research using microbeams has used them to study low-dose effects and ''non-targeted'' responses such bystander effects, genomic instability and adaptive responses. The goal of the 6th workshop was to build on our knowledge of the development of microbeam approaches and the application to radiation biology in the future with the meeting stretching over a 3 day period. Over 80 participants reviewed the current state of radiobiology microbeam research worldwide and reported on new technological developments both in the fields of physics and biology.

  2. 6th International Meshing Roundtable '97

    SciTech Connect

    White, D.

    1997-09-01

    The goal of the 6th International Meshing Roundtable is to bring together researchers and developers from industry, academia, and government labs in a stimulating, open environment for the exchange of technical information related to the meshing process. In the pas~ the Roundtable has enjoyed significant participation born each of these groups from a wide variety of countries. The Roundtable will consist of technical presentations from contributed papers and abstracts, two invited speakers, and two invited panels of experts discussing topics related to the development and use of automatic mesh generation tools. In addition, this year we will feature a "Bring Your Best Mesh" competition and poster session to encourage discussion and participation from a wide variety of mesh generation tool users. The schedule and evening social events are designed to provide numerous opportunities for informal dialog. A proceedings will be published by Sandia National Laboratories and distributed at the Roundtable. In addition, papers of exceptionally high quaIity will be submitted to a special issue of the International Journal of Computational Geometry and Applications. Papers and one page abstracts were sought that present original results on the meshing process. Potential topics include but are got limited to: Unstructured triangular and tetrahedral mesh generation Unstructured quadrilateral and hexahedral mesh generation Automated blocking and structured mesh generation Mixed element meshing Surface mesh generation Geometry decomposition and clean-up techniques Geometry modification techniques related to meshing Adaptive mesh refinement and mesh quality control Mesh visualization Special purpose meshing algorithms for particular applications Theoretical or novel ideas with practical potential Technical presentations from industrial researchers.

  3. 6th International Immunoglobulin Symposium: poster presentations.

    PubMed

    Fernandez-Cruz, E; Kaveri, S V; Peter, H-H; Durandy, A; Cantoni, N; Quinti, I; Sorensen, R; Bussel, J B; Danieli, M G; Winkelmann, A; Bayry, J; Käsermann, F; Späth, P; Helbert, M; Salama, A; van Schaik, I N; Yuki, N

    2009-12-01

    The posters presented at the 6th International Immunoglobulin Symposium covered a wide range of fields and included both basic science and clinical research. From the abstracts accepted for poster presentation, 12 abstracts were selected for oral presentations in three parallel sessions on immunodeficiencies, autoimmunity and basic research. The immunodeficiency presentations dealt with novel, rare class-switch recombination (CSR) deficiencies, attenuation of adverse events following IVIg treatment, association of immunoglobulin (Ig)G trough levels and protection against acute infection in patients with X-linked agammaglobulinaemia (XLA) and common variable immunodeficiency (CVID), and the reduction of class-switched memory B cells in patients with specific antibody deficiency (SAD). The impact of intravenous immunoglobulin on fetal alloimmune thrombocytopenia, pregnancy and postpartum-related relapses in multiple sclerosis and refractory myositis, as well as experiences with subcutaneous immunoglobulin in patients with multi-focal motor neuropathy, were the topics presented in the autoimmunity session. The interaction of dendritic cell (DC)-SIGN and alpha2,6-sialylated IgG Fc and its impact on human DCs, the enrichment of sialylated IgG in plasma-derived IgG, as wells as prion surveillance and monitoring of anti-measles titres in immunoglobulin products, were covered in the basic science session. In summary, the presentations illustrated the breadth of immunoglobulin therapy usage and highlighted the progress that is being made in diverse areas of basic and clinical research, extending our understanding of the mechanisms of immunoglobulin action and contributing to improved patient care.

  4. 6th International Conference on Emerging Zoonoses.

    PubMed

    Kahn, R E; Morozov, I; Feldmann, H; Richt, J A

    2012-09-01

    The 6th International Conference on Emerging Zoonoses, held at Cancun, Mexico, 24-27 February 2011, offered 84 participants from 18 countries, a snapshot of current research in numerous zoonoses caused by viruses, bacteria or prions. Co-chaired by Professors Heinz Feldmann and Jürgen Richt, the conference explored 10 topics: (i) The ecology of emerging zoonotic diseases; (ii) The role of wildlife in emerging zoonoses; (iii) Cross-species transmission of zoonotic pathogens; (iv) Emerging and neglected influenza viruses; (v) Haemorrhagic fever viruses; (vi) Emerging bacterial diseases; (vii) Outbreak responses to zoonotic diseases; (viii) Food-borne zoonotic diseases; (ix) Prion diseases; and (x) Modelling and prediction of emergence of zoonoses. Human medicine, veterinary medicine and environmental challenges are viewed as a unity, which must be considered under the umbrella of 'One Health'. Several presentations attempted to integrate the insights gained from field data with mathematical models in the search for effective control measures of specific zoonoses. The overriding objective of the research presentations was to create, improve and use the tools essential to address the risk of contagions in a globalized society. In seeking to fulfil this objective, a three-step approach has often been applied: (i) use cultured cells, model and natural animal hosts and human clinical models to study infection; (ii) combine traditional histopathological and biochemical approaches with functional genomics, proteomics and computational biology; and (iii) obtain signatures of virulence and insights into mechanisms of host defense response, immune evasion and pathogenesis. This meeting review summarizes 39 of the conference presentations and mentions briefly the 16 articles in this Special Supplement, most of which were presented at the conference in earlier versions. The full affiliations of all presenters and many colleagues have been included to facilitate further inquiries

  5. The 6th International Earth Science Olympiad: A Student Perspective

    ERIC Educational Resources Information Center

    Barlett, Luke; Cathro, Darcy; Mellow, Maddi; Tate, Clara

    2014-01-01

    In October 2012, two students from the Australian Science and Mathematics School and two from Yankalilla Area School were selected to travel to Olavarria, Argentina in order to compete in the 6th International Earth Science Olympiad (IESO). It was an opportunity for individuals with a passion for Earth science to come together from 17 countries to…

  6. The 6th International Earth Science Olympiad: A Student Perspective

    ERIC Educational Resources Information Center

    Barlett, Luke; Cathro, Darcy; Mellow, Maddi; Tate, Clara

    2014-01-01

    In October 2012, two students from the Australian Science and Mathematics School and two from Yankalilla Area School were selected to travel to Olavarria, Argentina in order to compete in the 6th International Earth Science Olympiad (IESO). It was an opportunity for individuals with a passion for Earth science to come together from 17 countries to…

  7. Conference Report: The 6th International Symposium on Waterborne Pathogens

    EPA Pesticide Factsheets

    A review of current literature on the occurrence of waterborne pathogens in DW systems.This dataset is associated with the following publication:Rochelle, P., P. Klonicki, G. DiGiovanni, V. Hill, Y. Akagi, and E. Villegas. Conference Report: The 6th International Symposium on Waterborne Pathogens ISWP 2015. JOURNAL OF THE AMERICAN WATER WORKS ASSOCIATION. American Water Works Association, Denver, CO, USA, 107(10): 24-32, (2015).

  8. PREFACE: 6th EEIGM International Conference on Advanced Materials Research

    NASA Astrophysics Data System (ADS)

    Horwat, David; Ayadi, Zoubir; Jamart, Brigitte

    2012-02-01

    The 6th EEIGM Conference on Advanced Materials Research (AMR 2011) was held at the European School of Materials Engineering (EEIGM) on the 7-8 November 2011 in Nancy, France. This biennial conference organized by the EEIGM is a wonderful opportunity for all scientists involved in the EEIGM programme, in the 'Erasmus Mundus' Advanced Materials Science and Engineering Master programme (AMASE) and the 'Erasmus Mundus' Doctoral Programme in Materials Science and Engineering (DocMASE), to present their research in the various fields of Materials Science and Engineering. This conference is also open to other universities who have strong links with the EEIGM and provides a forum for the exchange of ideas, co-operation and future orientations by means of regular presentations, posters and a round-table discussion. This edition of the conference included a round-table discussion on composite materials within the Interreg IVA project '+Composite'. Following the publication of the proceedings of AMR 2009 in Volume 5 of this journal, it is with great pleasure that we present this selection of articles to the readers of IOP Conference Series: Materials Science and Engineering. Once again it represents the interdisciplinary nature of Materials Science and Engineering, covering basic and applicative research on organic and composite materials, metallic materials and ceramics, and characterization methods. The editors are indebted to all the reviewers for reviewing the papers at very short notice. Special thanks are offered to the sponsors of the conference including EEIGM-Université de Lorraine, AMASE, DocMASE, Grand Nancy, Ville de Nancy, Region Lorraine, Fédération Jacques Villermaux, Conseil Général de Meurthe et Moselle, Casden and '+Composite'. Zoubir Ayadi, David Horwat and Brigitte Jamart

  9. Conference summary: 6th International conference on hyperons, charm, and beauty hadrons (BEACH04)

    SciTech Connect

    Butler, Joel N.; /Fermilab

    2004-12-01

    The 6th International Conference on Hyperons, Charm, and Beauty Hadrons (BEACH04) treated us to a wonderful array of new results. Here the author attempts to summarize the talks and discuss the conference highlights.

  10. Keynote Address for 6th International Symposium on Digital Earth

    NASA Technical Reports Server (NTRS)

    Bambacus, Myra

    2009-01-01

    NASA is committed to collaborating with not only our National Partners but also with our International Partners to help make our world a better place. We do this through the sharing of our discoveries and working together so that we can address uncertainties in predictions and forecasts that impact how we live on our home planet. NASA is committed to a Digital Earth as it enables our research to focus on cross disciplinary analysis. The mainstream Information Technologies along with the Digital Earth concepts have allowed this interdisciplinary research that is so critical to societal benefits. The technologies have been discovered and in many cases implemented, but we must forge ahead together to continue to advance all that is possible to fully extend our earth observations for the sake of humankind.

  11. Keynote Address for 6th International Symposium on Digital Earth

    NASA Technical Reports Server (NTRS)

    Bambacus, Myra

    2009-01-01

    NASA is committed to collaborating with not only our National Partners but also with our International Partners to help make our world a better place. We do this through the sharing of our discoveries and working together so that we can address uncertainties in predictions and forecasts that impact how we live on our home planet. NASA is committed to a Digital Earth as it enables our research to focus on cross disciplinary analysis. The mainstream Information Technologies along with the Digital Earth concepts have allowed this interdisciplinary research that is so critical to societal benefits. The technologies have been discovered and in many cases implemented, but we must forge ahead together to continue to advance all that is possible to fully extend our earth observations for the sake of humankind.

  12. PREFACE: 6th International Conference on Aperiodic Crystals (APERIODIC'09)

    NASA Astrophysics Data System (ADS)

    Grimm, Uwe; McGrath, Rónán; Degtyareva, Olga; Sharma, Hem Raj

    2010-04-01

    Aperiodic Logo Aperiodic'09, the sixth International Conference on Aperiodic Crystals, took place in Liverpool 13-18 September 2009. It was the first major conference in this interdisciplinary research field held in the UK. The conference, which was organised under the auspices of the Commission on Aperiodic Crystals of the International Union of Crystallography (IUCr), followed on from Aperiodic'94 (Les Diablerets, Switzerland), Aperiodic'97 (Alpe d'Huez, France), Aperiodic'2000 (Nijmegen, The Netherlands), Aperiodic'03 (Belo Horizonte, Brazil) and Aperiodic'06 (Zao, Japan). The next conference in the series will take place in Australia in 2012. The Aperiodic conference series is itself the successor to a series of Conferences on Modulated Structures, Polytypes and Quasicrystals (MOSPOQ), which were held in Marseilles (France) in 1984, Wroclaw (Poland) in 1986, Varanasi (India) in 1988 and Balatonszeplak (Hungary) in 1991. The remit of the conference covers two broad areas of research on aperiodic crystals, incommensurately modulated and composite crystals on the one hand, and quasicrystals on the other hand, sharing the property that they are aperiodically ordered solids. In addition, the conference also featured recent research on complex metal alloys, which are in fact periodically ordered solids. However, the term complex refers to their large unit cells, which may contain thousands of atoms, and as a consequence complex metal alloys share some of the properties of quasicrystalline solids. Aperiodic'09 attracted about 110 participants from across the world, including 20 UK-based scientists (the second largest group after Japan who sent 21 delegates). A particular feature of the conference series is its interdisciplinary character, and once again the range of disciplines of participants included mathematics, physics, crystallography and materials science. The programme started with three tutorial lectures on Sunday afternoon, presenting introductory overviews

  13. IEEE International Symposium on Biomedical Imaging.

    PubMed

    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.

  14. International Conference on Vocational Guidance (6th, Hyogo, Japan, November 2-4, 1988). Final Report.

    ERIC Educational Resources Information Center

    Ashiya Univ., Hyogo (Japan).

    This conference report contains the following papers: "Keynote Address" (Fukuyama); "Predictions Regarding the Nature and Significance of Vocational Guidance during the 21st Century in the United States" (Hoyt); "The Changing Workforce and Vocational Guidance" (Inaba); "The 6th International Conference on…

  15. FOREWORD: 6th International Conference on Pumps and Fans with Compressors and Wind Turbines (ICPF2013)

    NASA Astrophysics Data System (ADS)

    Wu, Yulin; Wang, Zhengwei; Yuan, Shouqi; Shi, Weidong; Liu, Shuhong; Luo, Xingqi; Wang, Fujun

    2013-12-01

    The 6th International Conference on Pumps and Fans with Compressors and Wind Turbines (ICPF 2013) was held in Beijing, China, 19-22 September 2013, which was jointly organized by Tsinghua University and Jiangsu University. The co-organizers were Zhejiang University, Zhejiang Sci-Tech University, The State Key Laboratory of Hydroscience and Engineering, The State Key Laboratory of Automotive Safety and Energy and Beijing International Science and Technology Cooperation Base for CO2 Utilization and Reduction. The sponsor of the conference was Concepts NREC. The First International Conference on Pumps and Systems (May 1992), the Second International Conference on Pumps and Fans (October 1995), the Third International Conference on Pumps and Fans (October 1998), and the Fourth International Conference on Pumps and Fans (26-29 August 2002) were all held in Beijing and were organized by the late famous Chinese professor on fluid machinery and engineering, Professor Zuyan Mei of Tsinghua University. The conference was interrupted by the death of Professor Mei in 2003. In order to commemorate Professor Mei, the organizing committee of ICPF decided to continue organizing the conference series. The Fifth Conference on Pumps and Systems (2010 ICPF) took place in Hangzhou, Zhejiang Province, China, 18-21 October 2010, and it was jointly organized by Zhejiang University and Tsinghua University. With the development of renewable energy and new energy in China and in the world, some small types of compressor and some types of pump, as well as wind turbines are developing very fast; therefore the ICPF2013 conference included compressors and wind turbines. The theme of the conference was the application of renewable energy of pumps, compressors, fans and blowers. The content of the conference was the basic study, design and experimental study of compressors, fans, blowers and pumps; the CFD application on pumps and fans, their transient behavior, unsteady flows and multi-phase flow

  16. FOREWORD: 6th International Symposium on Electronic Beam Ion Sources and their Applications

    NASA Astrophysics Data System (ADS)

    Liljeby, L.

    1997-01-01

    The 6th International Symposium on Electron Beam Ion sources and their Applications was held at the Manne Siegbahn Laboratory at Stockholm University, June 20-23, 1994. A symposium in this series is held every three years. The next one will be organised by Professor Reinhard Becker at the J. W. Goethe University in Frankfurt am Main, Germany. The Stockholm symposium had a total of 65 participants from 9 countries. 43 oral presentations were given and 7 posters were exhibited. For the first time in this series the proceedings have been refereed. The symposium was given generous support by the Marcus Wallbenberg Foundation for International Co-operation in Science, a support mainly used for inviting delegates from Russia and students. The organisation of the symposium was led by Dr. Carl Johan Herrlander. His efficiency, organising skill and never ending attention to all the aspects of the symposium were of the utmost importance for carrying it through. We deeply regret that the proceedings have been very much delayed. Physica Scripta has no part in causing the delay which is solely a result of my inability to enforce deadlines. We think though that the contents still is of interest in particular as a full documentation of the conference.

  17. PREFACE: The 6th International Symposium on Measurement Techniques for Multiphase Flows

    NASA Astrophysics Data System (ADS)

    Okamoto, Koji; Murai, Yuichi

    2009-02-01

    Research on multi-phase flows is very important for industrial applications, including power stations, vehicles, engines, food processing, and so on. Also, from the environmental viewpoint, multi-phase flows need to be investigated to overcome global warming. Multi-phase flows originally have non-linear features because they are multi-phased. The interaction between the phases plays a very interesting role in the flows. The non-linear interaction causes the multi-phase flows to be very difficult to understand phenomena. The International Symposium on Measurement Techniques for Multi-phase Flows (ISMTMF) is a unique symposium. The target of the symposium is to exchange the state-of-the-art knowledge on the measurement techniques for non-linear multi-phase flows. Measurement technique is the key technology to understanding non-linear phenomena. The ISMTMF began in 1995 in Nanjing, China. The symposium has continuously been held every two or three years. The ISMTMF-2008 was held in Okinawa, Japan as the 6th symposium of ISMTMF on 15-17 December 2008. Okinawa has a long history as the Ryukyus Kingdom. China and Japan have had cultural and economic exchanges through Okinawa for more than 1000 years. Please enjoy Okinawa and experience its history to enhance our international communication. The present symposium was attended by 124 participants, the program included 107 contributions with 5 plenary lectures, 2 keynote lectures, and 100 oral regular paper presentations. The topics include, besides the ordinary measurement techniques for multiphase flows, acoustic and electric sensors, bubbles and microbubbles, computed tomography, gas-liquid interface, laser-imaging and PIV, oil/coal/drop and spray, solid and powder, spectral and multi-physics. This volume includes the presented papers at ISMTMF-2008. In addition to this volume, ten selected papers will be published in a special issue of Measurement Science and Technology. We would like to express special thanks to all

  18. PREFACE: 6th International Workshop on Multi-Rate Processes and Hysteresis (MURPHYS2012)

    NASA Astrophysics Data System (ADS)

    Dimian, Mihai; Rachinskii, Dmitrii

    2015-02-01

    The International Workshop on Multi-Rate Processes and Hysteresis (MURPHYS) conference series focuses on multiple scale systems, singular perturbation problems, phase transitions and hysteresis phenomena occurring in physical, biological, chemical, economical, engineering and information systems. The 6th edition was hosted by Stefan cel Mare University in the city of Suceava located in the beautiful multicultural land of Bukovina, Romania, from May 21 to 24, 2012. This continued the series of biennial multidisciplinary conferences organized in Cork, Ireland from 2002 to 2008 and in Pécs, Hungary in 2010. The MURPHYS 2012 Workshop brought together more than 50 researchers in hysteresis and multi-scale phenomena from the United State of America, the United Kingdom, France, Germany, Italy, Ireland, Czech Republic, Hungary, Greece, Ukraine, and Romania. Participants shared and discussed new developments of analytical techniques and numerical methods along with a variety of their applications in various areas, including material sciences, electrical and electronics engineering, mechanical engineering and civil structures, biological and eco-systems, economics and finance. The Workshop was sponsored by the European Social Fund through Sectoral Operational Program Human Resources 2007-2013 (PRO-DOCT) and Stefan cel Mare University, Suceava. The Organizing Committee was co-chaired by Mihai Dimian from Stefan cel Mare University, Suceava (Romania), Amalia Ivanyi from the University of Pecs (Hungary), and Dmitrii Rachinskii from the University College Cork (Ireland). All papers published in this volume of Journal of Physics: Conference Series have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. The Guest Editors wish to place on record their sincere gratitude to Miss Sarah Toms for the assistance she provided

  19. Prevention and Treatment of Cancer: Hypes and Hopes 6th International Translational Cancer Research Conference.

    PubMed

    Patel, Prabhudas; Vora, Hemangini; Aggarwal, Bharat B; Gandhi, Varsha; Mehta, Kapil; Pathak, Sen

    2016-09-01

    Cancer is primarily an "old-age" disease that has an "age-old" history. The overall incidence of cancer is much higher in Western countries, but is rapidly growing in Eastern countries perhaps due to change in life-style. Almost three million studies published to date indicate that cancer is a hyperproliferative disorder that arises from dysregulation of multiple cell signaling pathways. The cancer genome landscape indicates that approximately 140 genes and 12 cell signaling pathways drive almost all cancers. "Targeted therapy," a buzz word in cancer treatment for the past two decades, has provided antibodies, as well as small-molecule inhibitors. These therapies have been successful only in few instances. However, in most cases, minor increase in overall survival has been reported at the cost of huge expense. An alternative strategy is to prevent cancer or to diagnose and treat the disease at an early stage to gain survival benefits. Such interventions are also cost-effective. To address some of these issues, the 6th International Translational Cancer Research Conference was held during February 4-7th, 2016, in Ahmedabad, Gujarat, India; the homeland of Mahatma Gandhi. This conference was focused on utilizing multidisciplinary approaches for prevention and early treatment that would likely simultaneously or sequentially target many key pathways. Several distinguished speakers were invited from around the world. This article highlights primary features of this conference.

  20. Consensus report from the 6th International forum for liver MRI using gadoxetic acid.

    PubMed

    Sirlin, Claude B; Hussain, Hero K; Jonas, Eduard; Kanematsu, Masayuki; Min Lee, Jeong; Merkle, Elmar M; Peck-Radosavljevic, Markus; Reeder, Scott B; Ricke, Jens; Sakamoto, Michiie

    2014-09-01

    As the utility of liver-specific magnetic resonance imaging (MRI) increases, it is pertinent to optimize and expand protocols to improve accuracy and foster evolution of techniques; in turn, positive impacts should be seen in patient management. This article reports on the latest expert thinking and current evidence in the field of liver-specific MRI, as discussed at the 6(th) International Forum for Liver MRI, which was held in Vancouver, Canada in September 2012. Topics discussed at this forum described the use of gadoxetic acid-enhanced MRI for the assessment of liver function at the segmental level; to increase accuracy in the diagnosis of liver metastases; to overcome current challenges in patients with cirrhosis, including management of arterial hypo-/isovascular, hepatobiliary phase hypointense nodules; and the data which would be required in order to recommend the use of this modality in hepatocellular carcinoma management guidelines. Growing evidence suggests that gadoxetic acid-enhanced MRI can help to improve the management of patients with a number of different liver disorders; however, more data are needed in some areas, and there may be a case for developing an interpretation guideline for gadoxetic acid-enhanced MRI findings to aid standardization. © 2013 Wiley Periodicals, Inc.

  1. PREFACE: 6th International Workshop on Pseudo-Hermitian Hamiltonians in Quantum Physics

    NASA Astrophysics Data System (ADS)

    Fring, Andreas; Jones, Hugh; Znojil, Miloslav

    2008-06-01

    Attempts to understand the quantum mechanics of non-Hermitian Hamiltonian systems can be traced back to the early days, one example being Heisenberg's endeavour to formulate a consistent model involving an indefinite metric. Over the years non-Hermitian Hamiltonians whose spectra were believed to be real have appeared from time to time in the literature, for instance in the study of strong interactions at high energies via Regge models, in condensed matter physics in the context of the XXZ-spin chain, in interacting boson models in nuclear physics, in integrable quantum field theories as Toda field theories with complex coupling constants, and also very recently in a field theoretical scenario in the quantization procedure of strings on an AdS5 x S5 background. Concrete experimental realizations of these types of systems in the form of optical lattices have been proposed in 2007. In the area of mathematical physics similar non-systematic results appeared sporadically over the years. However, intensive and more systematic investigation of these types of non- Hermitian Hamiltonians with real eigenvalue spectra only began about ten years ago, when the surprising discovery was made that a large class of one-particle systems perturbed by a simple non-Hermitian potential term possesses a real energy spectrum. Since then regular international workshops devoted to this theme have taken place. This special issue is centred around the 6th International Workshop on Pseudo-Hermitian Hamiltonians in Quantum Physics held in July 2007 at City University London. All the contributions contain significant new results or alternatively provide a survey of the state of the art of the subject or a critical assessment of the present understanding of the topic and a discussion of open problems. Original contributions from non-participants were also invited. Meanwhile many interesting results have been obtained and consensus has been reached on various central conceptual issues in the

  2. The 6th International Conference on Computer Science and Computational Mathematics (ICCSCM 2017)

    NASA Astrophysics Data System (ADS)

    2017-09-01

    The ICCSCM 2017 (The 6th International Conference on Computer Science and Computational Mathematics) has aimed to provide a platform to discuss computer science and mathematics related issues including Algebraic Geometry, Algebraic Topology, Approximation Theory, Calculus of Variations, Category Theory; Homological Algebra, Coding Theory, Combinatorics, Control Theory, Cryptology, Geometry, Difference and Functional Equations, Discrete Mathematics, Dynamical Systems and Ergodic Theory, Field Theory and Polynomials, Fluid Mechanics and Solid Mechanics, Fourier Analysis, Functional Analysis, Functions of a Complex Variable, Fuzzy Mathematics, Game Theory, General Algebraic Systems, Graph Theory, Group Theory and Generalizations, Image Processing, Signal Processing and Tomography, Information Fusion, Integral Equations, Lattices, Algebraic Structures, Linear and Multilinear Algebra; Matrix Theory, Mathematical Biology and Other Natural Sciences, Mathematical Economics and Financial Mathematics, Mathematical Physics, Measure Theory and Integration, Neutrosophic Mathematics, Number Theory, Numerical Analysis, Operations Research, Optimization, Operator Theory, Ordinary and Partial Differential Equations, Potential Theory, Real Functions, Rings and Algebras, Statistical Mechanics, Structure Of Matter, Topological Groups, Wavelets and Wavelet Transforms, 3G/4G Network Evolutions, Ad-Hoc, Mobile, Wireless Networks and Mobile Computing, Agent Computing & Multi-Agents Systems, All topics related Image/Signal Processing, Any topics related Computer Networks, Any topics related ISO SC-27 and SC- 17 standards, Any topics related PKI(Public Key Intrastructures), Artifial Intelligences(A.I.) & Pattern/Image Recognitions, Authentication/Authorization Issues, Biometric authentication and algorithms, CDMA/GSM Communication Protocols, Combinatorics, Graph Theory, and Analysis of Algorithms, Cryptography and Foundation of Computer Security, Data Base(D.B.) Management & Information

  3. PREFACE: 6th International Conference on Inverse Problems in Engineering: Theory and Practice

    NASA Astrophysics Data System (ADS)

    Bonnet, Marc

    2008-07-01

    The 6th International Conference on Inverse Problems in Engineering: Theory and Practice (ICIPE 2008) belongs to a successful series of conferences held up to now following a three-year cycle. Previous conferences took place in Palm Coast, Florida, USA (1993), Le Croisic, France (1996), Port Ludlow, Washington, USA (1999), Angra dos Reis, Brazil (2002), and Cambridge, UK (2005). The conference has its roots on the informal seminars organized by Professor J V Beck at Michigan State University, which were initiated in 1987. The organization of this Conference, which took place in Dourdan (Paris) France, 15-19 June 2008, was made possible through a joint effort by four research departments from four different universities: LEMTA (Laboratoire de Mécanique Théorique et Appliquée, Nancy-Université) LMS (Laboratoire de Mécanique des Solides, Ecole Polytechnique, Paris) LMAC (Laboratoire de Mathématiques Appliquées, UTC Compiègne) LTN (Laboratoire de Thermocinétique, Université de Nantes) It received support from three organizations: SFT (Société Française de Thermique: French Heat Transfer Association) ACSM (Association Calcul de Structures et Simulation : Computational Structural Mechanics Association) GdR Ondes - CNRS (`Waves' Network, French National Center for Scientific Research) The objective of the conference was to provide the opportunity for interaction and cross-fertilization between designers of inverse methods and practitioners. The delegates came from very different fields, such as applied mathematics, heat transfer, solid mechanics, tomography.... Consequently the sessions were organised along mostly methodological topics in order to facilitate interaction among participants who might not meet otherwise. The present proceedings, published in the Journal of Physics: Conference Series, gathers the four plenary invited lectures and the full-length versions of 103 presentations. The latter have been reviewed by the scientific committee (see

  4. Highlights from the 6th International Society for Computational Biology Student Council Symposium at the 18th Annual International Conference on Intelligent Systems for Molecular Biology

    PubMed Central

    2010-01-01

    This meeting report gives an overview of the keynote lectures and a selection of the student oral and poster presentations at the 6th International Society for Computational Biology Student Council Symposium that was held as a precursor event to the annual international conference on Intelligent Systems for Molecular Biology (ISMB). The symposium was held in Boston, MA, USA on July 9th, 2010.

  5. International Methane Hydrate Research and Development Workshop (6th) held in Bergen, Norway on May 13-15, 2008

    DTIC Science & Technology

    2009-07-22

    due to methane hydrate dissociation 0 0.2 0.4 0.6 0.8 1 1200 1100 1000 900 800 700 600 500 400 300 200 100 0 D ep th (m ete r f ro m K el ly b us...Naval Research Laboratory Washington, DC 20375-5320 NRL/MR/6110--09- 9143 6th International Methane Hydrate Research and Development Workshop July 22...Prescribed by ANSI Std. Z39.18 Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for

  6. 6th international conference on biophysics and synchrotron radiation. Program/Abstracts

    SciTech Connect

    Pittroff, Connie; Strasser, Susan Barr

    1999-08-03

    This STI product consists of the Program/Abstracts book that was prepared for the participants in the Sixth International Conference on Biophysics and Synchrotron Radiation that was held August 4-8, 1998, at the Advanced Photon Source, Argonne National Laboratory. This book contains the full conference program and abstracts of the scientific presentations.

  7. 6th Institute for Systems Biology International Symposium: Systems Biology and the Environment

    SciTech Connect

    Galitski, Timothy P.

    2007-04-23

    Systems biology recognizes the complex multi-scale organization of biological systems, from molecules to ecosystems. The International Symposium on Systems Biology is an annual two-day event gathering the most influential researchers transforming biology into an integrative discipline investigating complex systems. In recognition of the fundamental similarity between the scientific problems addressed in environmental science and systems biology studies at the molecular, cellular, and organismal levels, the 2007 Symposium featured global leaders in “Systems Biology and the Environment.” The objective of the 2007 “Systems Biology and the Environment” International Symposium was to stimulate interdisciplinary thinking and research that spans systems biology and environmental science. This Symposium was well aligned with the DOE’s Genomics: GTL program efforts to achieve scientific objectives for each of the three DOE missions: Develop biofuels as a major secure energy source for this century; Develop biological solutions for intractable environmental problems; Understand biosystems’ climate impacts and assess sequestration strategies. Our scientific program highlighted world-class research exemplifying these priorities. The Symposium featured 45 minute lectures from 12 researchers including: Penny/Sallie Chisholm of MIT gave the keynote address “Tiny Cells, Global Impact: What Prochlorococcus Can Teach Us About Systems Biology”, plus Jim Fredrickson of PNNL, Nitin Baliga of ISB, Steve Briggs of UCSD, David Cox of Perlegen Sciences, Antoine Danchin of Institut Pasteur, John Delaney of the U of Washington, John Groopman of Johns Hopkins, Ben Kerr of the U of Washington, Steve Koonin of BP, Elliott Meyerowitz of Caltech, and Ed Rubin of LBNL. The 2007 Symposium promoted DOE’s three mission areas among scientists from multiple disciplines representing academia, non-profit research institutions, and the private sector. As in all previous Symposia, we had

  8. Conference scene: Summary of the 6th Conference of the Romanian Association of Medical Laboratories with international participation.

    PubMed

    Carasevici, Eugen

    2011-10-01

    The Romanian Association of Medical Laboratories (RAML) conferences have acquired a reputation for standing out as the most prominent and efficient meetings in the national community of laboratory medicine, being a landmark of the development in this field in Romania and an active affiliation to international forums. This year, the conference setting was Piatra Neamt, in the northeast part of Romania, which produced a friendly and stimulating professional environment. As in previous years, leading experts in the fields of laboratory medicine attended the event. This year, we enjoyed the opportunity to have such distinguished guests as the members of the executive board of International Federation of Clinical Chemistry and Laboratory Medicine (IFCC); Graham Beastall, IFCC President; Päivi Hannele Laitinen, IFCC secretary; and Grazyna Sypniewska, IFCC Communication and Publication Division, and editor of the electronic journal of the IFCC. As usual, the conference program included all aspects of clinical laboratory activity, with a special focus on technology development, instrumentation and laboratory management. Fully aware of the fact that the complexity and depth of laboratory practice have undergone an impressive and rapid evolution, the specific goals of the event were to increase knowledge in the fundamentals of new molecular investigation, areas which show the tendency to become routine in our daily activity. In addition, laboratory management and the place of medical laboratories in the process of translational medicine were subjects of focus. The 6th Conference of the Romanian Association of Medical Laboratories was held from Wednesday 1st to Saturday 4th of June 2011. A total of 273 participants from all local branches of the Association attended. The scientific program included seven plenary sessions where 22 lectures and 18 short communications were delivered, and three poster sessions with 44 poster presentations. Session topics covered issues of

  9. PREFACE: NC-AFM 2003: Proceedings of the 6th International Conference on Non-contact Atomic Force Microscopy

    NASA Astrophysics Data System (ADS)

    Reichling, Michael

    2004-02-01

    Direct nanoscale and atomic resolution imaging is a key issue in nanoscience and nanotechnology. The invention of the dynamic force microscope in the early 1990s was an important step forward in this direction as this instrument provides a universal tool for measuring the topography and many other physical and chemical properties of surfaces at the nanoscale. Operation in the so-called non-contact mode now allows direct atomic resolution imaging of electrically insulating surfaces and nanostructures which has been an unsolved problem during the first decade of nanotechnology. Today, we face a most rapid development of the technique and an extension of its capabilities far beyond imaging; atomically resolved force spectroscopy provides information about local binding properties and researchers now develop sophisticated schemes of force controlled atomic manipulation with the tip of the force microscope. Progress in the field of non-contact force microscopy is discussed at the annually held NC-AFM conferences that are part of a series started in 1998 with a meeting in Osaka, Japan. The 6th International Conference on Non-contact Atomic Force Microscopy took place in Dingle, Ireland, from 31 August to 3 September 2003 and this special issue is a compilation of the original publications of work presented at this meeting. The papers published here well reflect recent achievements, current trends and some of the challenging new directions in non-contact force microscopy that have been discussed during the most stimulating conference days in Dingle. Fundamental aspects of forces and dissipation relevant in imaging and spectroscopy have been covered by experimental and theoretical contributions yielding a more detailed understanding of tip--surface interaction in force microscopy. Novel and improved imaging and spectroscopy techniques have been introduced that either improve the performance of force microscopy or pave the way towards new functionalities and applications

  10. 6th COSTAM/SFRR (ASEAN/Malaysia) International Workshop on Micronutrients, Oxidative Stress, and the Environment.

    PubMed

    Nesaretnam, Kalanithi; Sies, Helmut

    2006-01-01

    The 6(th) COSTAM/SFRR (ASEAN/Malaysia) workshop, "Micronutrients, Oxidative Stress, and the Environment," was held from June 29 to July 2 at Holiday Inn Damai Beach Resort in Kuching, Sarawak. Two hundred twenty participants from 17 countries presented recent advances on natural antioxidants in the area of oxidative stress and molecular aspects of nutrition. Natural products and research are an important program in academic institutions and are experiencing unprecedented interest and growth by the scientific community and public health authorities. Progress is being driven by better understanding of the molecular mechanisms of the relation between oxidative stress and micronutrient action. The gathering of scientists from around the world was fruitful, and we hope that future work will be developed by the formal and informal interactions that took place in this beautiful tropical setting.

  11. SB6.0: The 6th International meeting on Synthetic Biology, July 9-11, 2013

    SciTech Connect

    Kahl, Linda J.

    2015-04-23

    The Synthetic Biology conference series (SBx.0) is the preeminent academic meeting in synthetic biology. Organized by the BioBricks Foundation, the SBx.0 conference series brings together leading researchers, students, industry executives, and policy makers from around the world to share, consider, debate, and plan efforts to make biology easier to engineer. Historically held every two years, the SBx.0 conferences are held in alternating locations in the United States, Europe, and Asia to encourage global participation and collaboration so that the ramifications of synthetic biology research and development are most likely to be safe ethical, and beneficial. On 9-11 July 2013, the 6th installment of the synthetic biology conference series (SB6.0) was held on the campus of Imperial College London (http://sb6.biobricks.org). The SB6.0 conference was attended by over 700 people, and many more were able to participate via video digital conference (http://sb6.biobricks.org/digital-conference/). Over the course of three days, the SB6.0 conference agenda included plenary sessions, workshops, and poster presentations covering topics ranging from the infrastructure needs arising when “Systematic Engineering Meets Biological Complexity” and design-led considerations for “Connecting People and Technologies” to discussions on “Engineering Biology for New Materials,” “Assessing Risk and Managing Biocontainment,” and “New Directions for Energy and Sustainability.” The $10,150 grant awarded by the U.S. Department of Energy (DE-SC0010233) to the BioBricks Foundation was used to provide partial reimbursement for the travel expenses of leading researchers from the United States to speak at the SB6.0 conference. A total of $9,450 was used to reimburse U.S. speakers for actual expenses related to the SB6.0 conference, including airfare (economy or coach only), ground transportation, hotel, and registration fees. In addition, $700 of the grant was used to offset

  12. Manpower in Economic and Social Growth; Proceedings of International Manpower Seminar (6th, June 1-August 13, 1966).

    ERIC Educational Resources Information Center

    Cohen, Sanford, Ed.

    Summaries of 62 papers presented at the Sixth International Manpower Seminar are given. Four major topics were emphasized: (1) "Human Resources in Economic and Social Growth" dealth with basic concepts of human resources, natural resources, and economic resources, (2) "Manpower Planning and Allocation in Economic Development"…

  13. Museums and the Web 2002: Selected Papers from an International Conference (6th, Boston, Massachusetts, April 17-20, 2002).

    ERIC Educational Resources Information Center

    Bearman, David, Ed.; Trant, Jennifer, Ed.

    This proceedings contains the following selected papers from the Museums and the Web 2002 international conference: "The Electronic Guidebook: Using Portable Devices and a Wireless Web-Based Network To Extend the Museum Experience" (Robert Semper, Mirjana Spasojevic); "Eavesdropping on Electronic Guidebooks: Observing Learning…

  14. American Perspectives on the International Congress on Mathematical Education (6th, Budapest, Hungary, July 27-August 3, 1988).

    ERIC Educational Resources Information Center

    Cooney, Thomas J., Ed.

    The Sixth International Congress on Mathematical Education (ICME-6) was special in that it provided a context commemorating the life and work of George Polya (1887-1985) whose native land was Hungary and to whom all those interested in the teaching of mathematical problem solving owe a great debt. What follows in this publication is a collection…

  15. Rabies vaccine standards: comparison of the 5th and 6th WHO international reference standards to the USDA veterinary reference standard.

    PubMed

    Hermann, J; Fry, A; Reising, M; Patterson, P; Siev, D; Gatewood, D

    2012-11-06

    Ensuring rabies vaccines are potent and effective is paramount in preventing transmission of this deadly disease and safeguarding public health. Efficacy of human and veterinary vaccines is ensured by evaluating relative potency estimates of the vaccine compared to a rabies reference standard using the National Institutes of Health (NIH) test. Reference vaccines are based on the International Standard for Rabies Vaccine provided by the World Health Organization (WHO). A comparison study was conducted to determine the relative potency of the 5th WHO, 6th WHO, and United States Department of Agriculture's (USDA) 08-14 reference standards using the NIH test. Results from the study demonstrate that the 6th WHO reference standard is approximately twice as potent as the 5th WHO reference when reconstituted to contain 1 IU per ml. Based on these results, the Center for Veterinary Biologics (CVB) doubled the reconstitution volume of USDA veterinary reference 08-14 from 13 ml to 26 ml, for an initial use dilution of 0.7 IU per ml for use by veterinary biologics manufacturers in the NIH test. This study emphasizes the importance of reference standard calibration for use in the National Institutes of Health test.

  16. Advances in the biology and therapy of chronic myeloid leukemia: proceedings from the 6th Post-ASH International Chronic Myeloid Leukemia and Myeloproliferative Neoplasms Workshop.

    PubMed

    Van Etten, Richard A; Mauro, Michael; Radich, Jerald P; Goldman, John M; Saglio, Giuseppe; Jamieson, Catriona; Soverini, Simona; Gambacorti-Passerini, Carlo; Hehlmann, Rüdiger; Martinelli, Giovanni; Perrotti, Danilo; Scadden, David T; Skorski, Tomasz; Tefferi, Ayalew; Mughal, Tariq I

    2013-06-01

    Following the 53rd annual meeting of the American Society of Hematology (ASH) in San Diego in December 2011, a group of clinical and laboratory investigators convened for the 6th Post-ASH International Workshop on Chronic Myeloid Leukemia (CML) and Myeloproliferative Neoplasms (MPN). The Workshop took place on 13-14 December at the Estancia, La Jolla, California, USA. This report summarizes the most recent advances in the biology and therapy of CML that were presented at the ASH meeting and discussed at the Workshop. Preclinical studies focused on the CML stem cell and its niche, and on early results of deep sequencing of CML genomes. Clinical advances include updates on second- and third-generation tyrosine kinase inhibitors (TKIs), molecular monitoring, TKI discontinuation studies and new therapeutic agents. A report summarizing the pertinent advances in MPN has been published separately.

  17. Meeting Report: "Proteomics from Discovery to Function:" 6th Annual Meeting of Proteomics Society, India and International Conference-A Milestone for the Indian Proteomics Community.

    PubMed

    Gupta, Shabarni; Reddy, Panga Jaipal; Ray, Sandipan; Atak, Apurva; Gollapalli, Kishore; Jain, Rekha; Shah, Veenita Grover; Ghantasala, Saicharan; Kumar, Saurabh; Pandala, Narendra Goud; Phapale, Prasad; Pandey, Vishnu Kumar; Zingde, Surekha; Srivastava, Sanjeeva

    2015-06-01

    Proteomics is at the epicenter of post-genomics biotechnologies that are currently driving the next generation system science. Moreover, proteomics is a truly global science. The 6(th) Annual Meeting of Proteomics Society, India (PSI) and International Conference on "Proteomics from Discovery to Function" held from December 7-9, 2014, was a transformative endeavor for global proteomics, bringing together the luminaries in the field of proteomics for the very first time in India. This meeting report presents the lessons learned and the highlights of this international scientific conference that was comprised of nine thematic sessions, pre- and post-conference workshops, and an opportunity to cultivate enduring collaborations for proteomics science to benefit both India and global society. The conference had an unforgettable impression on the participants: for the first time, India hosted past and present President and Council members from the Human Proteome Organization (HUPO), along with eminent scientists and young scholars from India and abroad in the field of proteomics at such a large scale, a major highlight of this international event. In all, the PSI 2014 was a milestone conference that has firmly poised the Indian life sciences community as a leading contributor to post-genomics life sciences, thus cultivating crucial trans-generational capacity and inspiration by recognizing the emerging scholars and omics systems scientists who can think and conduct science from cell to society.

  18. Hematology oncology practice in the Asia-Pacific APHCON survey results from the 6th international hematologic malignancies conference: bridging the gap 2015, Beijing, China.

    PubMed

    Huang, Xiao Jun; Liu, Kaiyan; Ritchie, David; Andersson, Borje; Lu, Jin; Hou, Jian; Burguera, Adolfo de la Fuente; Wang, JianXiang; Yeoh, Allen; Yan, Chenhua; Zhou, Daobin; Tan, Daryl; Kim, Dong Wook; Wu, Depei; Shpall, Elizabeth; Kornblau, Stephen; Neelapu, Sattava; Hongeng, Suradej; Li, Jianyong; Hu, Jiong; Zhang, Lian Sheng; Wang, Michael; Malhotra, Pankaj; Jiang, Qian; Qin, Yazhen; Wong, Raymond; Champlin, Richard; Hagemeister, Frederick; Westin, Jason; Iyer, Swaminathan; Mathews, Vikram; Wang, Yu; Hu, Yu; Xiao, Zhijian; Shao, Zonghong; Orlowski, Robert Z; Chim, Chor Sang; Mulligan, Stephen; Sanz, Miguel; Ozawa, Keiya; Parmar, Simrit; Issaragrisil, Surapol

    2017-06-20

    This report serves as a snapshot of the state-of-knowledge in the Asia Pacific (APAC) Hematology Oncology community, and establishes a baseline for longitudinal investigations to follow changes in best practices over time. The objective of this study was to understand the approach to hematologic diseases, common standards of care and best practices, issues that remain controversial or debated, and educational or resource gaps that warrant attention. We used mobile application to disseminate and distribute questionnaires to delegates during the 6th international hematologic malignancies conference hosted by the APAC Hematology Consortium at Beijing, China. User responses were collected in an anonymous fashion. We report survey results in two ways: the overall responses, and responses as stratified between Chinese physicians and "Other" represented nationalities. Overall geographical concordance in survey responses was positive and strong. Perhaps more interesting than instances of absolute agreement, these data provide a unique opportunity to identify topics in which physician knowledge or opinions diverge. We assigned questions from all modules to broad categories of: patient information; diagnosis; treatment preference; transplantation; and general knowledge/opinion. On average, we observed a geographic difference of 15% for any particular answer choice, and this was fairly constant across survey modules. These results reveal utility and need for widespread and ongoing initiatives to assess knowledge and provide evidence-based education in real time. The data will be made more valuable by longitudinal participation, such that we can monitor changes in the state of the art over time.

  19. Hematology oncology practice in the Asia-Pacific APHCON survey results from the 6th international hematologic malignancies conference: bridging the gap 2015, Beijing, China

    PubMed Central

    Huang, Xiao Jun; Liu, Kaiyan; Ritchie, David; Andersson, Borje; Lu, Jin; Hou, Jian; Burguera, Adolfo de Fuente; Wang, JianXiang; Yeoh, Allen; Yan, Chenhua; Zhou, Daobin; Tan, Daryl; Kim, Dong Wook; Wu, Depei; Shpall, Elizabeth; Kornblau, Stephen; Neelapu, Sattava; Hongeng, Suradej; Li, Jianyong; Hu, Jiong; Zhang, Lian Sheng; Wang, Michael; Malhotra, Pankaj; Jiang, Qian; Qin, Yazhen; Wong, Raymond; Champlin, Richard; Hagemeister, Frederick; Westin, Jason; Iyer, Swaminathan; Mathews, Vikram; Wang, Yu; Hu, Yu; Xiao, Zhijian; Shao, Zonghong; Orlowski, Robert Z.; Chim, Chor Sang; Mulligan, Stephen; Sanz, Miguel; Ozawa, Keiya; Parmar, Simrit; Issaragrisil, Surapol

    2017-01-01

    This report serves as a snapshot of the state-of-knowledge in the Asia Pacific (APAC) Hematology Oncology community, and establishes a baseline for longitudinal investigations to follow changes in best practices over time. The objective of this study was to understand the approach to hematologic diseases, common standards of care and best practices, issues that remain controversial or debated, and educational or resource gaps that warrant attention. We used mobile application to disseminate and distribute questionnaires to delegates during the 6th international hematologic malignancies conference hosted by the APAC Hematology Consortium at Beijing, China. User responses were collected in an anonymous fashion. We report survey results in two ways: the overall responses, and responses as stratified between Chinese physicians and “Other” represented nationalities. Overall geographical concordance in survey responses was positive and strong. Perhaps more interesting than instances of absolute agreement, these data provide a unique opportunity to identify topics in which physician knowledge or opinions diverge. We assigned questions from all modules to broad categories of: patient information; diagnosis; treatment preference; transplantation; and general knowledge/opinion. On average, we observed a geographic difference of 15% for any particular answer choice, and this was fairly constant across survey modules. These results reveal utility and need for widespread and ongoing initiatives to assess knowledge and provide evidence-based education in real time. The data will be made more valuable by longitudinal participation, such that we can monitor changes in the state of the art over time. PMID:28404929

  20. EDITORIAL: The 6th International Workshop on Micro and Nanotechnologies for Power Generation and Energy Conversion Applications (PowerMEMS 2006)

    NASA Astrophysics Data System (ADS)

    Fréchette, Luc G.

    2007-09-01

    Energy is a sector of paramount importance over the coming decades if we are to ensure sustainable development that respects our environment. The research and development of novel approaches to convert available energy into usable forms using micro and nanotechnologies can contribute towards this goal and meet the growing need for power in small scale portable applications. The dominant power sources for handheld and other portable electronics are currently primary and rechargeable batteries. Their limited energy density and adverse effects on the environment upon disposal suggest that alternative approaches need to be explored. This special issue will showcase some of the leading work in this area, initially presented at PowerMEMS 2006, the 6th International Workshop on Micro and Nanotechnologies for Power Generation and Energy Conversion Applications. Power MEMS are defined as microsystems for electrical power generation and other energy conversion applications, including propulsion and cooling. The range of power MEMS technologies includes micro thermodynamic machines, such as microturbines, miniature internal combustion engines and micro-coolers; solid-state direct energy conversion, such as thermoelectric and photovoltaic microstructures; micro electrochemical devices, such as micro fuel cells and nanostructure batteries; vibration energy harvesting devices, such as piezoelectric, magnetic or electrostatic micro generators, as well as micro thrusters and rocket engines for propulsion. These can either be driven by scavenging thermal, mechanical or solar energy from the environment, or from a stored energy source, such as chemical fuel or radioactive material. The unique scope leads to unique challenges in the development of power MEMS, ranging from the integration of novel materials to the efficient small scale implementation of energy conversion principles. In this special issue, Mitcheson et al provide a comparative assessment of three inertial vibration

  1. Molecular Beam Epitaxy 1990: Proceedings of the International Conference on Molecular Beam Epitaxy (6th) Held in La Jolla, California on 27-31 August 1990.

    DTIC Science & Technology

    1991-01-01

    Zn small, or practically zero. The luminescence from Se wells thicker than 3 ML shows a sharp peak whose Fig. 5 Schematic depicting ZnZe grouth on...IEEE Trans. Electron Devices ED-30 (1983) 877. The authors have achieved a selective CoSt2 - 131 R.D. Rathman. N.P. Economou , D.J. Silversmith. R.W. MBE

  2. Low-frequency electrical dosimetry: research agenda of the IEEE International Committee on Electromagnetic Safety

    NASA Astrophysics Data System (ADS)

    Reilly, J. Patrick; Hirata, Akimasa

    2016-06-01

    This article treats unsettled issues in the use of numerical models of electrical dosimetry as applied to international limits on human exposure to low-frequency (typically  <  100 kHz) electromagnetic fields and contact current. The perspective in this publication is that of Subcommittee 6 of IEEE-ICES (International Committee on Electromagnetic Safety) Technical Committee 95. The paper discusses 25 issues needing attention, fitting into three general categories: induction models; electrostimulation models; and human exposure limits. Of these, 9 were voted as ‘high priority’ by members of Subcommittee 6. The list is presented as a research agenda for refinements in numerical modeling with applications to human exposure limits. It is likely that such issues are also important in medical and electrical product safety design applications.

  3. Low-frequency electrical dosimetry: research agenda of the IEEE International Committee on Electromagnetic Safety.

    PubMed

    Reilly, J Patrick; Hirata, Akimasa

    2016-06-21

    This article treats unsettled issues in the use of numerical models of electrical dosimetry as applied to international limits on human exposure to low-frequency (typically  <  100 kHz) electromagnetic fields and contact current. The perspective in this publication is that of Subcommittee 6 of IEEE-ICES (International Committee on Electromagnetic Safety) Technical Committee 95. The paper discusses 25 issues needing attention, fitting into three general categories: induction models; electrostimulation models; and human exposure limits. Of these, 9 were voted as 'high priority' by members of Subcommittee 6. The list is presented as a research agenda for refinements in numerical modeling with applications to human exposure limits. It is likely that such issues are also important in medical and electrical product safety design applications.

  4. PREFACE: MEM11: The 6th International Workshop on Mechanical-Electromagnetic Properties of Composite Superconductors (Okinawa, Japan, 5-7 December 2011) MEM11: The 6th International Workshop on Mechanical-Electromagnetic Properties of Composite Superconductors (Okinawa, Japan, 5-7 December 2011)

    NASA Astrophysics Data System (ADS)

    Awaji, Satoshi; Osamura, Kozo; Hampshire, Damian

    2012-05-01

    The effect of stress and strain on the electromagnetic properties of superconducting composite conductors is one of the key issues for the practical application of superconductivity. To discuss these subjects thoroughly, the International Workshop on Mechanical-Electromagnetic Properties of Composite Superconductors (MEM) has been held regularly since 2001. The 6th workshop (MEM11) was held in Okinawa, Japan in 2011, which was the centennial of the discovery of superconductivity by Professor Kamerlingh Onnes, as well as the 25th anniversary of the discovery of high temperature superconductors (HTS). Although it was originally planned that MEM11 be held in Mito, the workshop venue was changed because of the serious disaster in the north of Japan on 11 March 2011. Sixty five scientists participated in this specialized workshop. Fifty six papers were presented in the following six sessions: (1) Intrinsic strain effects on low temperature superconductors (LTS) and HTS, (2) The International Thermonuclear Experimental Reactor (ITER), (3) Strain evaluation by quantum beams, (4) Flux pinning properties of HTS, (5) Standardization and the Versailles Project on Advanced Materials and Standards (VAMAS) and (6) High field magnets. Several large topics were presented and discussed at the workshop: the important progress in methods for non-invasive measurements of the local strain exerted on the superconducting components in superconducting wires and cables using quantum beam techniques. This approach provides powerful tools for investigating the effect of strain in composite superconductors; the intrinsic strain effects in LTS and HTS in the reversible strain region. Recently, it has become easier to determine quantitatively the strain dependence of critical current when the local strain is measured directly, and the mechanical and electromagnetic properties of the superconductors used in the ITER tokamak. This was a major topic at the workshop since the superconducting

  5. Critical issues with the in vivo comet assay: A report of the comet assay working group in the 6th International Workshop on Genotoxicity Testing (IWGT).

    PubMed

    Speit, Günter; Kojima, Hajime; Burlinson, Brian; Collins, Andrew R; Kasper, Peter; Plappert-Helbig, Ulla; Uno, Yoshifumi; Vasquez, Marie; Beevers, Carol; De Boeck, Marlies; Escobar, Patricia A; Kitamoto, Sachiko; Pant, Kamala; Pfuhler, Stefan; Tanaka, Jin; Levy, Dan D

    2015-05-01

    As a part of the 6th IWGT, an expert working group on the comet assay evaluated critical topics related to the use of the in vivo comet assay in regulatory genotoxicity testing. The areas covered were: identification of the domain of applicability and regulatory acceptance, identification of critical parameters of the protocol and attempts to standardize the assay, experience with combination and integration with other in vivo studies, demonstration of laboratory proficiency, sensitivity and power of the protocol used, use of different tissues, freezing of samples, and choice of appropriate measures of cytotoxicity. The standard protocol detects various types of DNA lesions but it does not detect all types of DNA damage. Modifications of the standard protocol may be used to detect additional types of specific DNA damage (e.g., cross-links, bulky adducts, oxidized bases). In addition, the working group identified critical parameters that should be carefully controlled and described in detail in every published study protocol. In vivo comet assay results are more reliable if they were obtained in laboratories that have demonstrated proficiency. This includes demonstration of adequate response to vehicle controls and an adequate response to a positive control for each tissue being examined. There was a general agreement that freezing of samples is an option but more data are needed in order to establish generally accepted protocols. With regard to tissue toxicity, the working group concluded that cytotoxicity could be a confounder of comet results. It is recommended to look at multiple parameters such as histopathological observations, organ-specific clinical chemistry as well as indicators of tissue inflammation to decide whether compound-specific toxicity might influence the result. The expert working group concluded that the alkaline in vivo comet assay is a mature test for the evaluation of genotoxicity and can be recommended to regulatory agencies for use.

  6. Combined PET/MRI: Global Warming-Summary Report of the 6th International Workshop on PET/MRI, March 27-29, 2017, Tübingen, Germany.

    PubMed

    Bailey, D L; Pichler, B J; Gückel, B; Antoch, G; Barthel, H; Bhujwalla, Z M; Biskup, S; Biswal, S; Bitzer, M; Boellaard, R; Braren, R F; Brendle, C; Brindle, K; Chiti, A; la Fougère, C; Gillies, R; Goh, V; Goyen, M; Hacker, M; Heukamp, L; Knudsen, G M; Krackhardt, A M; Law, I; Morris, J C; Nikolaou, K; Nuyts, J; Ordonez, A A; Pantel, K; Quick, H H; Riklund, K; Sabri, O; Sattler, B; Troost, E G C; Zaiss, M; Zender, L; Beyer, Thomas

    2017-10-02

    The 6th annual meeting to address key issues in positron emission tomography (PET)/magnetic resonance imaging (MRI) was held again in Tübingen, Germany, from March 27 to 29, 2017. Over three days of invited plenary lectures, round table discussions and dialogue board deliberations, participants critically assessed the current state of PET/MRI, both clinically and as a research tool, and attempted to chart future directions. The meeting addressed the use of PET/MRI and workflows in oncology, neurosciences, infection, inflammation and chronic pain syndromes, as well as deeper discussions about how best to characterise the tumour microenvironment, optimise the complementary information available from PET and MRI, and how advanced data mining and bioinformatics, as well as information from liquid biomarkers (circulating tumour cells and nucleic acids) and pathology, can be integrated to give a more complete characterisation of disease phenotype. Some issues that have dominated previous meetings, such as the accuracy of MR-based attenuation correction (AC) of the PET scan, were finally put to rest as having been adequately addressed for the majority of clinical situations. Likewise, the ability to standardise PET systems for use in multicentre trials was confirmed, thus removing a perceived barrier to larger clinical imaging trials. The meeting openly questioned whether PET/MRI should, in all cases, be used as a whole-body imaging modality or whether in many circumstances it would best be employed to give an in-depth study of previously identified disease in a single organ or region. The meeting concluded that there is still much work to be done in the integration of data from different fields and in developing a common language for all stakeholders involved. In addition, the participants advocated joint training and education for individuals who engage in routine PET/MRI. It was agreed that PET/MRI can enhance our understanding of normal and disrupted biology, and we

  7. Comparison of the prognostic value of the 6th and 7th editions of the Union for International Cancer Control TNM staging system in patients with lower esophageal cancer undergoing neoadjuvant chemotherapy followed by surgery.

    PubMed

    Mehta, S P; Jose, P; Mirza, A; Pritchard, S A; Hayden, J D; Grabsch, H I

    2013-01-01

    Carcinoma of the esophagus is classified according to the Union for International Cancer Control (UICC) TNM staging system. The 7th edition of the UICC TNM staging system was published in 2009. This is the first study to compare the prognostic value of the TNM 6th and 7th editions in patients with esophageal carcinoma treated with chemotherapy followed by surgery. Two hundred forty-three patients with esophageal carcinoma were retrospectively selected from two referral centers. All patients received chemotherapy before surgery. Histopathologic data from the resection specimens were retrieved and restaged according to the TNM 7th edition. Disease-specific survival curves were plotted for depth of tumor invasion (ypT), lymph node status (ypN), and ypTNM stage and then compared. Median follow-up after surgery was 2.5 years (range 0.2-9 years). Survival analysis using the log-rank method revealed that there was a significant difference in survival between ypT4 disease and ypT3 disease (P= 0.003), but no difference between ypT0, ypT1, ypT2, and ypT3 categories irrespective of TNM edition used. Survival probability was significantly different between ypN0 and ypN1 (P= 0.001 for TNM 6th and 7th edition), as well as ypN2 and ypN3 (TNM 7th edition, P= 0.004), but not between ypN1 and ypN2 (TNM 7th edition, P= 0.89). Neither the TNM 6th nor 7th edition T staging provides accurate survival probability stratification. However, the advantage of the 7th edition is the introduction of a third tier in survival stratification for patients with nodal involvement. © 2012 Copyright the Authors. Journal compilation © 2012, Wiley Periodicals, Inc. and the International Society for Diseases of the Esophagus.

  8. Introduction to the special issue on the 2011 Joint IEEE International Frequency Control Symposium and European Frequency and Time Forum.

    PubMed

    Burt, Eric; Gill, Patrick

    2012-03-01

    The 8 invited and 17 contributed papers in this special issue focus on the following topical areas covered at the 2011 Joint IEEE International Frequency Control Symposium and European Frequency and Time Forum, held in San Francisco, California: 1) Materials and Resonators; 2) Oscillators, Synthesizers, and Noise; 3) Microwave Frequency Standards; 4) Sensors and Transducers; 5) Timekeeping and Time and Frequency Transfer; and 6) Optical Frequency Standards.

  9. Education for National Development Focus: Latin America (6th Annual Conference Report on International Understanding, University of Pittsburgh, April 16-18, 1964).

    ERIC Educational Resources Information Center

    American Association of Colleges for Teacher Education, Washington, DC.

    The papers delivered at the Sixth Annual American Association of Colleges for Teacher Education Conference on International Understanding, held in 1964, state and restate two basic assumptions: a) human resources are the most vital and fundamental element in national development and b) the development of human resources can be brought about only…

  10. NAWeb 2000: Web-Based Learning - On Track! International Conference on Web-Based Learning. (6th, New Brunswick, Canada, October 14-17, 2000).

    ERIC Educational Resources Information Center

    Hall, Richard., Ed.

    This proceedings of the Sixth International Conference on Web-Based Learning, NAWeb 2000, includes the following papers: "Is a Paradigm Shift Required To Effectively Teach Web-Based Instruction?"; "Issues in Courseware Reuse for a Web-Based Information System"; "The Digital Curriculum Database: Meeting the Needs of Industry and the Challenge of…

  11. NAWeb 2000: Web-Based Learning - On Track! International Conference on Web-Based Learning. (6th, New Brunswick, Canada, October 14-17, 2000).

    ERIC Educational Resources Information Center

    Hall, Richard., Ed.

    This proceedings of the Sixth International Conference on Web-Based Learning, NAWeb 2000, includes the following papers: "Is a Paradigm Shift Required To Effectively Teach Web-Based Instruction?"; "Issues in Courseware Reuse for a Web-Based Information System"; "The Digital Curriculum Database: Meeting the Needs of Industry and the Challenge of…

  12. Counseling the Community and Society. Conference Proceedings of the International Round Table (6th, Cambridge, United Kingdom, April 7-ll, 1974.)

    ERIC Educational Resources Information Center

    International Round Table for the Advancement of Counselling, London (England).

    This paper contains a series of speeches given at the Sixth International Round Table for the Advancement of Counseling Conference and Seminar. The aim of the conference was to provide a forum for interdisciplinary sutdy of questions relating to guidance and counseling at school and university levels as well as in other areas representing…

  13. Proceedings of Hawaiian Winter Workshop (6th) on Dynamics of Oceanic Internal Gravity Waves Held in Manoa, Hawaii on 15-18 January 1991

    DTIC Science & Technology

    1991-11-01

    what extent can linear dynamics explain the generation of near-inertial waves, and perhaps, the genration of the entire spectrum of internal waves. As...statements (e.g. potential temperature, dissolved oxygen or silicate) but the situation is worst for salinity simply because its mean value is quite large in...heat, oxygen and nutrient fluxes and budgets in the North Atlantic Ocean. Deep-Sea Res., in press. McDougall Schlitzer, R., 1987: Renewal rates of

  14. Proceedings of the 1987 IEEE international conference on systems, man, and cybernetics. Volume 1

    SciTech Connect

    Not Available

    1987-01-01

    This book contains the proceedings of the IEE international conference on systems Man, and cybernetics. Topics include the following: robotics; knowledge base simulation; software systems, image and pattern recognition; neural networks; and image processing.

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

    PubMed

    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.

  16. Proceedings of the 1986 IEEE international conference on systems, man and cybernetics

    SciTech Connect

    Not Available

    1986-01-01

    This book presents the papers given at a conference on man-machine systems. Topics considered at the conference included neural model-based cognitive theory and engineering, user interfaces, adaptive and learning systems, human interaction with robotics, decision making, the testing and evaluation of expert systems, software development, international conflict resolution, intelligent interfaces, automation in man-machine system design aiding, knowledge acquisition in expert systems, advanced architectures for artificial intelligence, pattern recognition, knowledge bases, and machine vision.

  17. An International Symposium and Exhibition on Active Materials and Adaptive Structures.

    DTIC Science & Technology

    2007-11-02

    1002, 1988. [7] E. Schmitz, "Modeling and control of a planar manipulator with an elastic fore- arm," in Proceedings of the 6th IEEE International ...and Test-Analysis Correlation of the Space Shuttle SRM", Proceedings of the 6th International Modal Analysis Conference, Orlando, Florida, February...American Defense Preparedness Association presents An International Symposium & Exhibition on Active Materials & Adaptive Structures

  18. 6th Amino Acid Assessment Workshop

    USDA-ARS?s Scientific Manuscript database

    The focus of the 6th workshop is on lysine, arginine, and related amino acids. Functions, metabolic pathways, clinical uses, and upper tolerance intakes are emphasized in the articles that follow. Lysine is arguably the most deficient amino acid in the food supply of countries where poverty exists, ...

  19. Kids & Family Reading Report™. 6th Edition

    ERIC Educational Resources Information Center

    Scholastic Inc., 2017

    2017-01-01

    This report presents the 6th Edition of Scholastic's biannual study of children's and parents' attitudes and behaviors about reading. The latest research touches on: (1) Reading Books for Fun; (2) Reading Aloud; (3) Summer Reading; and (4) Favorite Children's Books. This research provides both reasons to celebrate as well as a strong motivation to…

  20. Proceedings of the International Congress/Actes du 6eme Congres International (6th) Held in Nice, France on 5-9 July 1993: Noise as a Public Health Problem. Volume 3

    DTIC Science & Technology

    1993-07-09

    Environnementales CNRS-INRS 21, rue Becquerel - Strasbourg - France On behalf of the International Commission on Biological Effects of Noise let me...Laboratoire do phsysiologie et de psychologie environnementales CNRS-INRS 21, rue Becquerel - Strasbourg, France Au nomn de la Commission Internationale sur...temporal relation between noise and signal will increase the precision of prediction. Any attempt to investigate the perception of noise from a temporal

  1. PREFACE: 6th Liquid Matter Conference

    NASA Astrophysics Data System (ADS)

    Dijkstra, Marjolein; van Roij, René; Vroege, Gert Jan; Lekkerkerker, Henk; Frenkel, Daan

    2005-11-01

    This special issue of Journal of Physics: Condensed Matter contains the Proceedings of the 6th Liquid Matter Conference held in Utrecht, The Netherlands, 2-6 July 2005. The three-yearly Liquid Matter Conference is organized by the Liquids Section of the Condensed Matter Division of the European Physical Society. This series of meetings began in Lyon in 1990. The most recent meeting was held in 2003 in Konstanz. The aim of the Liquid Matter Conferences is to bring together scientists working on the liquid state of matter. This rapidly growing field includes the physics, chemistry, biology and chemical engineering of liquid matter as well as various applied research areas. In fact, the Utrecht meeting had, for the first time, a special session devoted to Fundamental Challenges in Applied Liquid Physics and Microfluidics. The Utrecht meeting had 760 registered participants from four continents. An important event at this meeting was the award of the First Liquid Matter Prize of the European Physical Society to Professor Jean-Pierre Hansen FRS, of Cambridge University. In addition to a plenary speech by the recipient of the Liquid Matter Prize, the scientific programme consisted of 10 plenary lectures, 117 symposia talks, 25 of which were keynote lectures and some 650 poster contributions. The meeting also hosted a one-day symposium of the Division of Liquids and Interfaces of the Chemical Sciences division of NWO. This special issue of Journal of Physics: Condensed Matter contains 61 of the oral communications. Liquid state physics is at the interface of many fields of research. As a consequence, many of the attendants come from adjacent fields and find in the Liquid Matter Conference a forum to meet experts from other areas of research. This aspect of the Liquid Matter Conference makes it an exciting meeting as it not only offers the participants an up-to-date picture of the status of research into the liquid state of matter, but it also allows them to establish new

  2. 6th Annual European Antibody Congress 2010

    PubMed Central

    2011-01-01

    The 6th European Antibody Congress (EAC), organized by Terrapinn Ltd., was held in Geneva, Switzerland, which was also the location of the 4th and 5th EAC.1,2 As was the case in 2008 and 2009, the EAC was again the largest antibody congress held in Europe, drawing nearly 250 delegates in 2010. Numerous pharmaceutical and biopharmaceutical companies active in the field of therapeutic antibody development were represented, as were start-up and academic organizations and representatives from the US Food and Drug Administration (FDA). The global trends in antibody research and development were discussed, including success stories of recent marketing authorizations of golimumab (Simponi®) and canakinumab (Ilaris®) by Johnson & Johnson and Novartis, respectively, updates on antibodies in late clinical development (obinutuzumab/GA101, farletuzumab/MORAb-003 and itolizumab/T1 h, by Glycart/Roche, Morphotek and Biocon, respectively) and success rates for this fast-expanding class of therapeutics (Tufts Center for the Study of Drug Development). Case studies covering clinical progress of girentuximab (Wilex), evaluation of panobacumab (Kenta Biotech), characterization of therapeutic antibody candidates by protein microarrays (Protagen), antibody-drug conjugates (sanofi-aventis, ImmunoGen, Seattle Genetics, Wyeth/Pfizer), radio-immunoconjugates (Bayer Schering Pharma, Université de Nantes) and new scaffolds (Ablynx, AdAlta, Domantis/GlaxoSmithKline, Fresenius, Molecular Partners, Pieris, Scil Proteins, Pfizer, University of Zurich) were presented. Major antibody structural improvements were showcased, including the latest selection engineering of the best isotypes (Abbott, Pfizer, Pierre Fabre), hinge domain (Pierre Fabre), dual antibodies (Abbott), IgG-like bispecific antibodies (Biogen Idec), antibody epitope mapping case studies (Eli Lilly), insights in FcγRII receptor (University of Cambridge), as well as novel tools for antibody fragmentation (Genovis). Improvements

  3. IEEE standards worldwide

    SciTech Connect

    Hammons, T.J. )

    1995-01-01

    This article presents North American views on the development and use of internationally acceptable standards through strengthened ties with global standards organizations. The key ingredient to enhance the international reputation of IEEE standards is, without doubt, greater participation of members around the world. Standards that will really have force are those that are recognized as preeminent and that are sought after by organizations worldwide. it will be necessary to develop enhanced liaisons with standards organizations around the world, such as the IEC. These are some of the issues that will be addressed by panelists representing standards organizations and users from North America, United States, Canada, and Mexico. Also discussed is the importance of standards in the NAFTA and GATT agreements on trade.

  4. International Summer Institute in Surface Science (6th) (ISISS 1983).

    DTIC Science & Technology

    1984-02-29

    oxygenated organic molecules from carbon monoxide and hydrogen, selectively. Iron that catalyzes ammonia synthesis from nitrogen and hydrogen as well as the...tendency, ISISS was organized . Leading experts from various subdivisions of surface science - we chose to restrict the topics to gas-solid interfaces...Roughening and Surface Melting M. Gratzel, Ecole Polytechnique Federale de Lausanne, Switzerland Heterogeneous Photocatalysis This paper gives an overview

  5. Student Solutions Manual to accompany Physics, 6th Edition

    NASA Astrophysics Data System (ADS)

    Cutnell, John D.; Johnson, Kenneth W.

    2003-07-01

    Work more effectively and check solutions as you go along with the text! Written by the authors, this indispensable Student Solutions Manual provides complete worked-out solutions to 25% of the end-of-chapter problems in Cutnell & Johnson's Physics, 6th Edition. These problems are specifically indicated in the text. For the 6th Edition of their best-selling Physics, the authors have added both print and online material to encourage readers to engage in the material more interactively. Physics research clearly shows that active learning is much more effective than passive learning. The 6th edition helps readers understand the interrelationships among basic physics concepts and how they fit together to describe our physical world. Throughout the text, the authors emphasize the relevance of physics to our everyday lives.

  6. The Roles of School Readiness and Poverty-Related Risk for 6th Grade Outcomes

    PubMed Central

    Pressler, Emily; Raver, C. Cybele; Friedman-Krauss, Allison H.; Roy, Amanda

    2016-01-01

    Low-income students are at increased risk for grade retention and suspension, which dampens their chances of high school graduation, college attendance, and future success. Drawing from a sample of 357 children and their families who participated in the Chicago School Readiness Project, we examine whether greater exposure to cumulative poverty-related risk from preschool through 5th grade is associated with greater risk of student retention and suspension in 6th grade. Logistic regression results indicate that exposure to higher levels of cumulative risk across the elementary school years is associated with students’ increased risk of retention in 6th grade, even after controlling for child school readiness skills and other covariates. Importantly, findings of the association between average cumulative risk exposure and student suspension are more complex; the role of poverty-related risk is reduced to non-significance once early indicators of child school readiness and other covariates are included in regression models. While, children’s early externalizing behavior prior to kindergarten places children at greater risk of suspension 7 years later, children’s higher levels of internalizing behaviors and early math skills are associated with significantly decreased risk of suspension in the 6th grade. Together, findings from the study suggest the complex ways that both early school readiness and subsequent exposure to poverty-related risk may both serve as compelling predictors of children’s likelihood of “staying on track” academically in the 6th grade. PMID:27867447

  7. The Roles of School Readiness and Poverty-Related Risk for 6(th) Grade Outcomes.

    PubMed

    Pressler, Emily; Raver, C Cybele; Friedman-Krauss, Allison H; Roy, Amanda

    2016-01-01

    Low-income students are at increased risk for grade retention and suspension, which dampens their chances of high school graduation, college attendance, and future success. Drawing from a sample of 357 children and their families who participated in the Chicago School Readiness Project, we examine whether greater exposure to cumulative poverty-related risk from preschool through 5(th) grade is associated with greater risk of student retention and suspension in 6(th) grade. Logistic regression results indicate that exposure to higher levels of cumulative risk across the elementary school years is associated with students' increased risk of retention in 6(th) grade, even after controlling for child school readiness skills and other covariates. Importantly, findings of the association between average cumulative risk exposure and student suspension are more complex; the role of poverty-related risk is reduced to non-significance once early indicators of child school readiness and other covariates are included in regression models. While, children's early externalizing behavior prior to kindergarten places children at greater risk of suspension 7 years later, children's higher levels of internalizing behaviors and early math skills are associated with significantly decreased risk of suspension in the 6(th) grade. Together, findings from the study suggest the complex ways that both early school readiness and subsequent exposure to poverty-related risk may both serve as compelling predictors of children's likelihood of "staying on track" academically in the 6(th) grade.

  8. Proceedings of the 6th European VLBI Network Symposium

    NASA Astrophysics Data System (ADS)

    Ros, Eduardo; Porcas, Richard W.; Lobanov, Andrei P.; Zensus, J. Anton

    This volume contains the papers presented at the 6th Symposium of the European VLBI Network, held in Bonn on 25-28 June 2002. The initial aim of these biennial gatherings of European VLBI practitioners was to review in a timely manner new results and technical developments related to Very Long Baseline Interferometry. Now, however, interest and participation in the EVN Symposia reaches far beyond Europe, reflecting the fact that scientific research and development programs are carried out to a high degree in international and often truly global collaborations. More than 120 scientists from around the world registered for participation in the Symposium. The Symposium was hosted by the Max-Planck-Institut für Radioastronomie and was held at the Gustav Stresemann Institut. In addition to the scientific sessions and poster presentations, the program included an EVN Users Meeting, an MPIfR versus Rest-of-the-World football match (highly appropriate given the competing World Cup event!), a visit to the MPIfR's 100m radio telescope in Effelsberg, and a Conference Dinner held in the nearby old walled town of Bad Müunstereifel. To maximize the usefulness of these proceedings (and possibly as a daring precedent) the Editors decided to demand the written versions of talks and posters and to complete the editorial work before the meeting, and to deliver the book to the participants at the beginning of the Symposium. We thank the authors for their cooperation in delivering publication-ready electronic manuscripts and for meeting the strict deadlines. It is highly gratifying that only a handful of the 100 presentations are not represented in this volume. The editors have made minor changes to some of the contributions in order to improve readability, and take responsibility for any errors arising from these changes. Besides the authors, many individuals have contributed to the preparation of the meeting and its proceedings. In addition to many members of the MPIfR staff, we

  9. Environmental Problem Perception of 6th Grade Students

    ERIC Educational Resources Information Center

    Genc, Murat; Genc, Tulin; Ergenc, Mustafa; Erkuz, Neslihan

    2016-01-01

    This study aims to examine and compare the 6th grade students' perception of environmental issues through different techniques. For this purpose, we have tried to establish the students' perception of environmental issues by studying the pictures they drew and the written texts they wrote. In this study, where we have conducted with 62 students in…

  10. Working Together for Student Achievement. 6th Biennial Joint Report

    ERIC Educational Resources Information Center

    Washington State Board of Education, 2016

    2016-01-01

    The Washington State Board of Education (SBE) and the Professional Educator Standards Board (PESB) submitted this 6th biennial joint report to the Governor, Legislative Education Committees, and Superintendent of Public Instruction. The report outlines the collaborative work of the Boards, highlights accomplishments, and provides goals and…

  11. Proceedings of the IEEE International Workshop on Safety of Systems (1st) held in Monterey, California on 15-16 Mar 2007

    DTIC Science & Technology

    2007-03-01

    Ubiquitous Systems for e-Health, 2003. 5. R. Sterritt, D.W. Bustard , “Autonomic Computing: a Means of Achieving Dependability?” In Proceedings of IEEE...J. O. Kephart and D. M. Chess. “The vision of autonomic computing”. Computer, 36(1):41–52, 2003. 10. R. Sterritt, D.W. Bustard , “Towards an

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

    SciTech Connect

    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.

  13. Workshop report for the AIAA 6th Aeroacoustics Conference

    NASA Astrophysics Data System (ADS)

    Tam, C. K. W.

    1981-12-01

    Summaries are given of the workshops conducted at the AIAA 6th Aeroacoustics Conference, each summary having been prepared 9y the workshop chairman. The six workshops are: jet noise, duct acoustics, turbomachinery noise, aircraft interior noise, airframe and propulsive lift noise, and propeller and helicopter noise. It is noted that the primary purpose of the workshops is to provide a forum where new ideas and concepts can be openly discussed and controversies freely debated.

  14. Benign recurrent abducens (6th) nerve palsy in two children.

    PubMed

    Knapp, Christopher M; Gottlob, Irene

    2004-03-01

    Benign recurrent abducens (6th) nerve palsy is rare. We found 23 cases in children reported in the literature; however, many of these cases followed immunization or were associated with viral illness. Here we report two cases of recurrent abducens nerve palsy with no obvious etiology. The diagnosis should be considered in any child who experiences abducens nerve palsy in the absence of any underlying pathology or precipitating factors.

  15. 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.

    ERIC Educational Resources Information Center

    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…

  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.

    ERIC Educational Resources Information Center

    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. 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.

    PubMed

    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.

  18. PREFACE: The 6th Nordic Meeting on Nuclear Physics

    NASA Astrophysics Data System (ADS)

    Løvhøiden, G.; Thorsteinsen, T. F.; Vaagen, J. S.

    1990-01-01

    After an unintended time gap of five years, the series of regular Nordic meetings on nuclear physics was continued with the 6th Nordic Meeting, August 10-15, 1989. The site was Utgarden in the outskirts of Kopervik, the administration center for the Saga island of Karmøy on the west-coast of Norway. Utgarden, a "peoples high-school'' with a kitchen, housing facility and a neighboring modern gymnasium with fine lecture halls, proved to be an inexpensive and adequate site for the meeting. From the time of the Vikings, the sound between Karmøyy and the mainland has been a vital part of the way to the north. Mobility and international orientation is still a signature of an area where today essential parts of Norway's oil- and metal industry are located. The conference program included a session on nuclear physics in industry and society, with contributed talks from a number of companies and technology/research institutions, which also sponsored the meeting. Lunch visits to Hydro's aluminium plant on Karmøy or alternatively to Statoil's gas terminal on the mainland, were included in the program. The scientific program gives a cross section of nuclear physics activities in which researchers from the Nordic countries are involved nowadays. The spectrum is rich, and the emphasis has shifted to higher energies than was the case five years ago. We appreciate the possibility to present this overview in a separate volume of Physica Scripta. The present issue covers nearly all the talks given at the meeting. The order deviates, however, somewhat from that of the conference program. The organizing committee tried to encourage in various ways the participation of young physicists; this effort was truely rewarded. The young participants put their imprint on the activities in the lecture halls and even more on the soccer arena. The meeting was sponsored by The University of Bergen, The Nordic Accelerator Committee, NORDITA, The Norwegian Research Council for Science and the

  19. Low Dimensional Dynamics in the Crayfish 6th Ganglion

    NASA Astrophysics Data System (ADS)

    Pei, Xing; Moss, Frank

    1996-03-01

    Finding low dimensional dynamical behavior in biological preparations has received much attention. Neurons are, however, subject to random processes, or "noise". Thus specific dynamical behavior is evidenced by well defined signatures embedded in noisy data files(D. Pierson and F. Moss Phys. Rev. Lett. 75, 2124 (1995)). We report the results of a statistical search for unstable periodic orbits in the periodically stimulated 6th ganglion of the crayfish Procambarus clarkii. Electrophysiological recordings from the caudal photoreceptor neuron within the ganglion provide the data. We discuss the results in terms of the cyclic theory of chaos.

  20. 6th ESO/OHP Summer School in Astrophysical Observations

    NASA Astrophysics Data System (ADS)

    Véron, M.-P.; Meylan, G.

    1998-09-01

    The 6th ESO/OHP Summer School was hosted again at the Observatoire de Haute-Provence (OHP) from 15 to 25 July 1998. The school, held only every second years, selects 18 of Europe's most promising young doctoral students in astronomy. Courses of lectures, observations, and analysis form the intellectual menu which is aimed at teaching the process of extracting astrophysically digestible results from the photons harvested at the telescopes, such as the ESO VLT, whose four telescopes will become available to the community in turn during the next few years.

  1. 6th Japan Bioanalysis Forum Symposium: challenge of regulated bioanalysis.

    PubMed

    Igarashi, Harue

    2015-01-01

    Biomarker measurement and LC-MS analysis of large molecule pharmaceuticals (LM-MS) are becoming increasingly important in pharmaceutical development, although they are not included in the existing bioanalytical method validation guidelines in Japan. The 6th Japan Bioanalysis Forum symposium presented challenges regarding biomarkers and LM-MS, as well as the current circumstances for regulated bioanalysis, by inviting speakers from Japan, the USA, European Union and Asia-pacific. Japan Bioanalysis Forum discussion groups also presented their outcomes and openly discussed these with the attendees - over 200 dedicated individuals from industry, regulatory agencies and academia. The symposium successfully reinforced the idea that fit-for-purpose approaches are necessary, and that science should drive any judgments and actions throughout drug development.

  2. 6th Global College of Neuroprotection and Neuroregeneration, annual meeting.

    PubMed

    Sharma, Hari Shanker; Sharma, Aruna

    2009-07-01

    The 6th Global College of Neuroprotection and Neuroregeneration (GCNN) and 5th Society for Study on Neuroplasticity and Neuroregeneration (SSNN) conference was held jointly in the Hilton Hotel, Vienna, Austria, 1-4 March 2009. This was the second annual joint conference of the two societies and it was highly successful from a scientific point of view, as it saw a gathering of the top basic and clinical scientists whose research is currently at the cutting edge of neuroscience. This conference saw 86 invited lectures from carefully selected leading scientists from around the world, along with 56 posters of young scientists researching of a focal theme. Over the 3 days, in 32 sessions, new developments in neuroprotection and new ways to enhance neuroregeneration were discussed intensively among more than 600 delegates. In addition, approximately 40 representatives of drug companies, five representatives from scientific publishers and 14 representatives from scientific instruments and supplies-related industries also actively participated in this huge neuroscience event. The GCNN and SSNN conference achieved a new milestone in scientific success in Vienna and established an excellent new working collaboration among the participants in a pleasant, enriched environment with several social gatherings.

  3. Fundamentals of Physics, 6th Edition Enhanced Problems Version

    NASA Astrophysics Data System (ADS)

    Halliday, David; Resnick, Robert; Walker, Jearl

    2002-04-01

    No other text on the market today can match the success of Halliday, Resnick and Walker's Fundamentals of Physics. This text continues to outperform the competition year after year, and the new edition will be no exception. Intended for Calculus-based Physics courses, the 6th edition of this extraordinary text is a major redesign of the best-selling 5th edition, which still maintains many of the elements that led to its enormous success. Jearl Walker adds his unique style to this edition with the addition of new problems designed to capture, and keep, students' attention. Nearly all changes are based on suggestions from instructors and students using the 5th edition, from reviewer comments, and from research done on the process of learning. The primary goal of this text is to provide students with a solid understanding of fundamental physics concepts, and to help them apply this conceptual understanding to quantitative problem solving. The principal goal of Halliday-Resnick-Walker is to provide instructors with a tool by which they can teach students how to effectively read scientific material and successfully reason through scientific questions. To sharpen this tool, the Enhanced Problems Version of the sixth edition of Fundamentals of Physics contains over 1000 new, high-quality problems that require thought and reasoning rather than simplistic plugging of data into formulas.

  4. The role and modulation of CCR6+ Th17 cell populations in rheumatoid arthritis.

    PubMed

    Paulissen, Sandra M J; van Hamburg, Jan Piet; Dankers, Wendy; Lubberts, Erik

    2015-07-01

    The IL-17A producing T-helper-17 (Th17) cell population plays a major role in rheumatoid arthritis (RA) pathogenesis and has gained wide interest as treatment target. IL-17A expressing Th cells are characterized by the expression of the chemokine receptor CCR6 and the transcription factor RORC. In RA, CCR6+ Th cells were identified in peripheral blood, synovial fluid and inflamed synovial tissue. CCR6+ Th cells might drive the progression of an early inflammation towards a persistent arthritis. The CCR6+ Th cell population is heterogeneous and several subpopulations can be distinguished, including Th17, Th22, Th17.1 (also called non-classic Th1 cells), and unclassified or intermediate populations. Interestingly, some of these populations produce low levels of IL-17A but are still very pathogenic. Furthermore, the CCR6+ Th cells phenotype is unstable and plasticity exists between CCR6+ Th cells and T-regulatory (Treg) cells and within the CCR6+ Th cell subpopulations. In this review, characteristics of the different CCR6+ Th cell populations, their plasticity, and their potential impact on rheumatoid arthritis are discussed. Moreover, current approaches to target CCR6+ Th cells and future directions of research to find specific CCR6+ Th cell targets in the treatment of patients with RA and other CCR6+ Th cell mediated autoimmune diseases are highlighted.

  5. 6th Annual CMMI Technology Conference and User Group

    DTIC Science & Technology

    2006-11-17

    industry group for CMMI Services. • Initial focus will be for organizations providing “DoD services” as well as internal IT: - System maintenance...presented. In v1.2, student presentations, exercises, and SEI instructor presentations will be intermixed throughout the week to provide a better...level of granularity Supports detailed work interactions State Based Systems Captures flow of control (work activities, parallelism) well Multi-view

  6. Significant changes in the 6th edition of FACT-JACIE standards affecting apheresis facilities.

    PubMed

    Schwartz, Joseph

    2017-02-01

    FACT-JACIE cellular therapy standards are being revised every 3years and currently in their 6th edition. Significant changes in the 6th edition of the standards that affect apheresis facilities participating in cellular therapy product collections are presented.

  7. 169. GENERAL VIEW DOWN 6TH AVE. VIEW TO SOUTHWEST DOWN ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    169. GENERAL VIEW DOWN 6TH AVE. VIEW TO SOUTHWEST DOWN 6TH AVE. SHOWING FROM LEFT TO RIGHT, BUILDING 8 (HOSPITAL) WITH PART OF ONE OF ITS 1-STORY WARD WINGS, AND THE 3 ORIGINAL DORMITORY WINGS OF BUILDING 9 (BOQ). - Quonset Point Naval Air Station, Roger Williams Way, North Kingstown, Washington County, RI

  8. IEEE Conference Publications in Libraries.

    ERIC Educational Resources Information Center

    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…

  9. IEEE Conference Publications in Libraries.

    ERIC Educational Resources Information Center

    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…

  10. Extending Service Area of IEEE 802.11 Ad Hoc Networks

    NASA Astrophysics Data System (ADS)

    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.

  11. PREFACE: 6th European Thermal Sciences Conference (Eurotherm 2012)

    NASA Astrophysics Data System (ADS)

    Petit, Daniel; Le Niliot, Christophe

    2012-11-01

    About EUROTHERM The aim of the EUROTHERM Committee (www.eurothermcommittee.eu) is to promote and foster European cooperation in Thermal Sciences and Heat Transfer by gathering together scientists and engineers working in specialized areas. The Committee consists of members representing and appointed by national bodies in the EU countries. The current President of EUROTHERM is Professor Anton van Steenhoven from the University of Eindhoven (The Netherlands). The Committee organizes and coordinates European scientific events such as the EUROTHERM Seminars (about 4 per year) and the European Thermal Sciences Conference (every 4 years). About the conference This sixth in the series of European Thermal Sciences Conferences (www.eurotherm2012.com) took place in France, in the Conference Centre of Poitiers, Futuroscope. We address special thanks to the 225 reviewers, coming from different European countries, who have evaluated these papers. We also thank the scientific committee, consisting of some EUROTHERM Committee members together with other internationally recognized experts. Their role has been to manage the evaluation of abstracts and the papers selection process as co-coordinators for specific topics. This conference is the joint effort of two laboratories: the PPRIME Institute in Poitiers and the IUSTI laboratory in Marseille. It could not be organized without the efficient help of our secretaries and our technician for the IT support. This volume of Journal of Physics: Conference Series includes 180 articles presented at the conference. Professor Daniel PETIT Chairman, PPRIME Poitiers, France Institut P'(UPR CNRS 3346) ENSMA 1 av. Clément Ader - BP40109 86961 Futuroscope-Chasseneuil France daniel.petit@ensma.fr Professor Christophe LE NILIOT Co-chairman, IUSTI Marseille, France Laboratoire IUSTI UMR CNRS 6595 Technopôle de Chateau-Gombert 5, rue Enrico Fermi 13 453 MARSEILLE CEDEX 13 France christophe.leniliot@polytech.univ-mrs.fr

  12. Genetics of multifactorial disorders: proceedings of the 6th Pan Arab Human Genetics Conference.

    PubMed

    Nair, Pratibha; Bizzari, Sami; Rajah, Nirmal; Assaf, Nada; Al-Ali, Mahmoud Taleb; Hamzeh, Abdul Rezzak

    2016-04-20

    The 6th Pan Arab Human Genetics Conference (PAHGC), "Genetics of Multifactorial Disorders" was organized by the Center for Arab Genomic Studies (http://www.cags.org.ae) in Dubai, United Arab Emirates from 21 to 23 January, 2016. The PAHGCs are held biennially to provide a common platform to bring together regional and international geneticists to share their knowledge and to discuss common issues. Over 800 delegates attended the first 2 days of the conference and these came from various medical and scientific backgrounds. They consisted of geneticists, molecular biologists, medical practitioners, postdoctoral researchers, technical staff (e.g., nurses and lab technicians) and medical students from 35 countries around the world. On the 3rd day, a one-day workshop on "Genetic Counseling" was delivered to 26 participants. The conference focused on four major topics, namely, diabetes, genetics of neurodevelopmental disorders, congenital anomalies and cancer genetics. Personalized medicine was a recurrent theme in most of the research presented at the conference, as was the application of novel molecular findings in clinical settings. This report discusses a summary of the presentations from the meeting.

  13. PREFACE: The 6th European Conference on Applied Superconductivity (EUCAS 2003)

    NASA Astrophysics Data System (ADS)

    Vaglio, Ruggero; Donaldson, Gordon

    2004-05-01

    This special issue of Superconductor Science and Technology contains papers presented at the 6th European Conference on Applied Superconductivity (EUCAS), which was held in Sorrento, Italy, 14--18 September 2003. This important biennial event followed previous successful meetings held in Gottingen, Germany; Edinburgh, Scotland; Eindhoven, the Netherlands; Sitges (Barcelona), Spain; and Copenhagen, Denmark. Following tradition, this EUCAS conference focused on the role of superconductivity in bridging various aspects of research with a variety of concrete advanced applications. EUCAS 2003 attracted about 1000 participants from all around the world with large participation from non-European countries. This conference benefited the worldwide superconductivity community tremendously as scientists operating internationally were able to share their knowledge and experience with one another. We are grateful to all those who submitted papers to the Conference Proceedings, which will be published in an Institute of Physics Conference Series, and also to those who contributed to this special issue. Unfortunately we could not consider every one of the large number of papers submitted to this issue and we express our regret to those whose work could not be included.

  14. 3. BUILDING 522, EAST SIDE, FROM ACROSS 6TH STREET AT ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    3. BUILDING 522, EAST SIDE, FROM ACROSS 6TH STREET AT ITS INTERSECTION WITH G STREET, LOOKING NORTHWEST. - Oakland Naval Supply Center, Aeronautical Materials Storehouses, Between E & G Streets, between Fourth & Sixth Streets, Oakland, Alameda County, CA

  15. 1/6TH SCALE STRIP EFFLUENT FEED TANK-MIXING RESULTS USING MCU SOLVENT

    SciTech Connect

    Hansen, E

    2006-02-01

    The purpose of this task was to determine if mixing was an issue for the entrainment and dispersion of the Modular Caustic Side Solvent Extraction (CSSX) Unit (MCU) solvent in the Defense Waste Processing Facility (DWPF) Strip Effluent Feed Tank (SEFT). The MCU strip effluent stream containing the Cs removed during salt processing will be transferred to the DWPF for immobilization in HLW glass. In lab-scale DWPF chemical process cell testing, mixing of the solvent in the dilute nitric acid solution proved problematic, and the Savannah River National Laboratory (SRNL) was requested to perform scaled SEFT mixing tests to evaluate whether the problem was symptomatic of the lab-scale set-up or of the solvent. The solvent levels tested were 228 and 235 ppm, which represented levels near the estimated DWPF solvent limit of 239 ppm in 0.001M HNO{sub 3} solution. The 239 ppm limit was calculated by Norato in X-CLC-S-00141. The general approach for the mixing investigation was to: (1) Investigate the use of fluorescent dyes to aid in observing the mixing behavior. Evaluate and compare the physical properties of the fluorescent dyed MCU solvents to the baseline Oak Ridge CSSX solvent. Based on the data, use the dyed MCU solvent that best approximates the physical properties. (2) Use approximately a 1/6th linear scale of the SEFT to replicate the internal configuration for DWPF mixing. (3) Determine agitator speed(s) for scaled testing based on the DWPF SEFT mixing speed. (4) Perform mixing tests using the 1/6th SEFT and determine any mixing issues (entrainment/dispersion, accumulation, adhesion) through visual observations and by pulling samples to assess uniformity. The mixing tests used MCU solvent fabricated at SRNL blended with Risk Reactor DFSB-K43 fluorescent dye. This dyed SRNL MCU solvent had equivalent physical properties important to mixing as compared to the Oak Ridge baseline solvent, blended easily with the MCU solvent, and provided an excellent visual aid.

  16. IEEE international conference on robotics and automation

    SciTech Connect

    Not Available

    1987-01-01

    This book presents the papers given at a conference on the computer aspects of robots. Topics considered at the conference included vision, pattern recognition, artificial intelligence, expert systems, computerized control systems, computerized simulation, manipulator control, failures, robot kinematics, computer-aided manufacturing, inspection, research trends, computer architecture, programming, and computer-aided design.

  17. PREFACE: 6th Workshop on Infrared Spectroscopy and Microscopy with Accelerator-Based Sources (WIRMS11)

    NASA Astrophysics Data System (ADS)

    Lupi, Stefano; Perucchi, Andrea

    2012-05-01

    This volume of Journal of Physics: Conference Series is dedicated to a subset of papers related to the work presented at the 6th edition of the international Workshop on Infrared Spectroscopy and Microscopy with Accelerator-Based Sources (WIRMS), held in Trieste, Italy, September 4-8 2011. Previous editions of the conference were held in Porquerolles (France), Lake Tahoe (USA), Rathen (Germany), Awaji (Japan), and Banff (Canada). This edition was organized and chaired by Stefano Lupi (Roma La Sapienza) and co-chaired by Andrea Perucchi (Elettra), with the support of the Italian Synchrotron Light Laboratory ELETTRA, which was honored to host the WIRMS workshop in its tenth anniversary. The 6th WIRMS edition addressed several different topics, ranging from biochemistry to strongly correlated materials, from geology to conservation science, and from forensics to the study of cometary dusts. Representatives from the infrared scientific programs at synchrotron light sources and free-electron-laser facilities. This edition was attended by 88 participants, including representatives from the infrared scientific programs at synchrotron light sources and free-electron-laser facilities, who enjoyed the stimulating scientific presentations, several detailed discussions, and the beautiful weather and scenery of the Trieste gulf. Participants came from 16 different nations and four continents, including many young scientists, six of which were supported by the organizers. There were 45 scientific talks divided in 11 sessions: Facilities, Microspectroscopy (I, II, III), Time-Resolved Spectroscopies, Extreme Conditions, Condensed Matter, Near-Field, Imaging, THz Techniques and High-Resolution Spectroscopy. 37 posters were also presented at two very lively evening poster sessions. We would like to use the opportunity of writing this preface to thank all the participants of the workshop for the very high level of their scientific contribution and for the very friendly atmosphere

  18. Digestive disease management in Japan: a report on the 6th diagnostic pathology summer fest in 2012.

    PubMed

    Ichikawa, Kazuhito; Fujimori, Takahiro; Moriya, Takuya; Ochiai, Atsushi; Yoshinaga, Shigetaka; Kushima, Ryouji; Nagahama, Ryuji; Ohkura, Yasuo; Tanaka, Shinji; Ajioka, Yoichi; Hirata, Ichiro; Tanaka, Masanori; Hoshihara, Yoshio; Kinoshita, Yoshikazu; Sasano, Hironobu; Iwashita, Akinori; Tomita, Shigeki; Hirota, Seiichi; Yao, Takashi; Fujii, Shigehiko; Matsuda, Takahisa; Ueno, Hideki; Ishikawa, Yuichi; Takubo, Kaiyo; Fukushima, Noriyoshi; Sugai, Tamotsu; Iwafuchi, Mitsuya; Imura, Jhoji; Manabe, Toshiaki; Fukayama, Masahisa

    2013-01-01

    The 6th Diagnostic Pathology Summer Fest, held in Tokyo on August 25-26, 2012, opened its gates for everyone in the medical profession. Basic pathology training can contribute to the improvement of algorithms for diagnosis and treatment. The 6th Summer Fest with the theme 'Pathology and Clinical Treatment of Gastrointestinal Diseases' was held at the Ito International Research Center, The University of Tokyo. On August 25, 'Treatment of Early Gastrointestinal Cancer and New Guidelines' was discussed in the first session, followed by 'Biopsy Diagnosis of Digestive Tract: Key Points of Pathological Diagnosis for Inflammation and Their Clinical Significance' in the second session. On August 26, cases were discussed in the third session, and issues on pathological diagnosis and classification of neuroendorcrine tumor in the fourth session. The summaries of speeches and discussions are introduced along with the statements of each speaker. This meeting was not a formal evidence-based consensus conference, and 20 experts gave talks on their areas of specialty. Discussion was focused on how the management strategy should be standardized on the algorithm of patient care. © 2013 S. Karger AG, Basel.

  19. Proceedings of the 6th international offshore mechanics and Arctic engineering symposium, Vol. 4

    SciTech Connect

    Lunardini, V.J.; Sinha, N.K.; Wang, Y.S.; Goff, R.D.

    1987-01-01

    This book presents the papers given at a conference on offshore platforms. Topics considered at the conference included spray ice islands, arctic structures and operations, arctic thermal and permafrost engineering, ice properties, offshore drilling, foundations, offshore exploration, crude oil storage facilities, thermosyphons, heat transfer, concretes, wave forces, and soil mechanics.

  20. 6th International Conference on Nanomaterials by Severe Plastic Deformation (NanoSPD6)

    NASA Astrophysics Data System (ADS)

    2014-08-01

    ''NanoSPD'' means Nano-material by Severe Plastic Deformation (SPD), which is an efficient way to obtain bulk nano-structured materials. During SPD, the microstructure of the material is transformed into a very fine structure consisting of ultra fine grains (UFG) approaching even the nano-scale. SPD is different from classical large strain forming processes in two aspects: 1. The sample undergoes extremely large strains without significant change in its dimensions, 2. In most SPD processes high hydrostatic stress is applied which makes it possible to deform difficult-to-form materials. This conference is part of a series of conferences taking place every third year; the history of NanoSPD conferences began in 1999 in Moscow (Russia), followed by Vienna in 2002 (Austria), Fukuoka in 2005 (Japan), Goslar in 2008 (Germany), Nanjing in 2011 (China), and Metz in 2014 (France). The preface continues in the pdf.

  1. 6th International workshop on the Detection, Classification, Localization and Density Estimation of Marine Mammals

    DTIC Science & Technology

    2013-09-30

    Classification, Localization and Density Estimation of Marine Mammals Dr Douglas Gillespie Sea Mammal Research Unit, Scottish Oceans Institute...NUMBER 5f. WORK UNIT NUMBER 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) University of St Andrews, Scottish Oceans Institute,Sea Mammal

  2. Proceedings of the 6th International Congress on Noise as a Public Health Problem, volume 2

    NASA Astrophysics Data System (ADS)

    1993-07-01

    The 160 papers from the congress are presented. Topics covered include the following: noise induced hearing loss; noise and communication; community response to noise; noise and animal life; non-auditory physiological effects; influence of noise on performance and behavior; noise and disturbed sleep; and regulations and standards.

  3. PREFACE: 6th Vacuum and Surface Sciences Conference of Asia and Australia (VASSCAA-6)

    NASA Astrophysics Data System (ADS)

    Ahsan Bhatti, Javaid; Hussain, Talib; Khan, Wakil

    2013-06-01

    The Vacuum and Surface Sciences Conference of Asia and Australia (VASSCAA) conference series has been organized to create a new forum in Asia and Australia to discuss vacuum, surface and related sciences, techniques and applications. The conference series is officially endorsed by the International Union for Vacuum Science, Technique and Application (IUVSTA). The International Steering Committee of VASSCAA is comprised of Vacuum Societies in seven countries: Australia, China, India, Iran, Japan, South Korea and Pakistan. VASSCAA-1 was organized by the Vacuum Society of Japan in 1999 in Tokyo, Japan. VASSCAA-2 was held in 2002 in Hong Kong, VASSCAA-3 in Singapore in 2005. VASSCAA-4 was held in Matsue, Japan in 2008 and VASSCAA-5 in 2010 in Beijing, China. The 6th Vacuum and Surface Sciences Conference of Asia and Australia (VASSCAA-6) was held from 9-13 October 2012 in the beautiful city of Islamabad, Pakistan. The venue of the conference was the Pak-China Friendship Centre, Islamabad. More than six hundred local delgates and around seventy delegates from different countries participated in this mega event. These delegates included scientists, researchers, engineers, professors, plant operators, designers, vendors, industrialists, businessmen and students from various research organizations, technical institutions, universities, industries and companies from Pakistan and abroad. The focal point of the event was to enhance cooperation between Pakistan and the international community in the fields of vacuum, surface science and other applied technologies. At VASSCAA-6 85 oral presentations were delivered by local and foreign speakers. These were divided into different sessions according to their fields. A poster session was organized at which over 70 researchers and students displayed their posters. The best three posters won prizes. In parallel to the main conference sessions four technical short courses were held. The participants showed keen interest in all these

  4. Curriculum Reform Movements and Science Textbooks: A Retrospective Examination of 6th Grade Science Textbooks

    ERIC Educational Resources Information Center

    Alpaslan, Muhammet Mustafa; Yalvac, Bugrahan; Loving, Cathleen C.

    2015-01-01

    Over 50 years, two major reform efforts in science education took place. The purpose of the present study is to explore how the educational reforms were reflected in nine 6th grade science textbooks published in 1975, in 1985 and in 1997 in terms of (a) the materials used, (b) the contexts to which the electricity concept was related, (c) the type…

  5. An Analysis of Writing Dispositions of 6th Grade Students in Terms of Different Variables

    ERIC Educational Resources Information Center

    Tabak, Gurkan; Topuzkanamis, Ersoy

    2014-01-01

    This research was conducted with an aim to analyze the writing dispositions of the 6th grade students in terms of different variables. The research was carried out based on the descriptive survey model. The participants of the research are composed of a total of 672 students as 342 male students and 330 female students from Ankara, Balikesir,…

  6. Summary of the National Technicians' Conference ASE/NSLC York--5/6th July 2012

    ERIC Educational Resources Information Center

    Bostock, Julia, Comp.

    2012-01-01

    This article presents a summary of the National Technicians' Conference ASE/NSLC York from July 5th to July 6th 2012. Approximately 160 technicians attended the Conference on both days. The programme included workshops and lectures and was repeated on the Friday, so that technicians who stayed for both days were able to take part in a variety of…

  7. Curriculum Reform Movements and Science Textbooks: A Retrospective Examination of 6th Grade Science Textbooks

    ERIC Educational Resources Information Center

    Alpaslan, Muhammet Mustafa; Yalvac, Bugrahan; Loving, Cathleen C.

    2015-01-01

    Over 50 years, two major reform efforts in science education took place. The purpose of the present study is to explore how the educational reforms were reflected in nine 6th grade science textbooks published in 1975, in 1985 and in 1997 in terms of (a) the materials used, (b) the contexts to which the electricity concept was related, (c) the type…

  8. Sneak Preview of Berkeley Lab's Science at the Theatre on June 6th, 2011

    ScienceCinema

    Sanii, Babak

    2016-07-12

    Babak Sanii provides a sneak preview of Berkeley Lab's next Science at the Theater Event: Big Thinking: The Power of Nanoscience. Berkeley Lab scientists reveal how nanoscience will bring us cleaner energy, faster computers, and improved medicine. Berkeley Repertory Theatre on June 6th, 2011

  9. Parental Stress with Homeschooling K-6th Grade Children in a South Florida District

    ERIC Educational Resources Information Center

    Myers, Jennifer A.

    2017-01-01

    Parental Stress With Homeschooling K-6th Grade Children in a South Florida District. Jennifer A. Myers, 2015: Applied Dissertation, Nova Southeastern University, Abraham S. Fischler College of Education. ERIC Descriptors: Homeschooling, Stress, Stress Management, Coping This applied dissertation study was designed to inform and advance knowledge…

  10. Sneak Preview of Berkeley Lab's Science at the Theatre on June 6th, 2011

    SciTech Connect

    Sanii, Babak

    2011-01-01

    Babak Sanii provides a sneak preview of Berkeley Lab's next Science at the Theater Event: Big Thinking: The Power of Nanoscience. Berkeley Lab scientists reveal how nanoscience will bring us cleaner energy, faster computers, and improved medicine. Berkeley Repertory Theatre on June 6th, 2011

  11. Parental Stress with Homeschooling K-6th Grade Children in a South Florida District

    ERIC Educational Resources Information Center

    Myers, Jennifer A.

    2017-01-01

    Parental Stress With Homeschooling K-6th Grade Children in a South Florida District. Jennifer A. Myers, 2015: Applied Dissertation, Nova Southeastern University, Abraham S. Fischler College of Education. ERIC Descriptors: Homeschooling, Stress, Stress Management, Coping This applied dissertation study was designed to inform and advance knowledge…

  12. The International System of Units (SI)

    NASA Astrophysics Data System (ADS)

    Taylor, Barry N.

    1991-08-01

    The booklet is the U.S. edition of the English language translation of the 6th edition of Le Systeme International d'Unites (SI), the definitive reference on the SI published in 1991 by the International Bureau of Weights and Measures (BIPM) in the French language. The U.S. edition conforms in substance with the English language translation that follows the French language text in the BIPM publication. To make the booklet helpful to the broadest community of users in the U.S., it was necessary to follow current Federal policy, to recognize present U.S. practices as they are found in the literature of the authors domestic voluntary standards organizations such as ASTM and IEEE, and to use American spelling of certain words.

  13. IEEE P1157 Medical Data Interchange (MEDIX) Committee Overview and Status Report

    PubMed Central

    Harrington, John J.; Benson, Timothy J. R.; Spector, Andrew L.

    1990-01-01

    Working under the auspices of the Institute of Electrical and Electronic Engineers Engineering in Medicine and Biology Society (IEEE EMBS), the IEEE P1157 Medical Data Interchange (MEDIX) Committee has been chartered with developing international standards for communication of medical information between heterogeneous healthcare information systems. The IEEE P1157 Standards are based upon, and will conform to, the International Standards Organization (ISO) Reference Model for Open Systems Interconnection (OSI)[1]. The IEEE P1157 Committee has adopted a phased approach and is working towards balloting the initial standards, which apply to communications between a patient care system (PCS) and selected ancillaries in the medical center setting. A parallel, longer range effort, focused on developing a reference model for electronic exchange of the medical record structure, content, and related medical knowledge, is in progress.

  14. Multiwavelength observations of XTE J1859+226 on 1999, November 6th

    NASA Astrophysics Data System (ADS)

    Haswell, C. A.; Chaty, S.; Norton, A. J.; Chen, W.; Hynes, R. I.

    1999-11-01

    Further simultaneous HST and RXTE observations (visit #3) of the new X-ray transient XTE J1859+226 are scheduled for November 6th 1999 19:37 - 22:22 UT. Coordinated multi-wavelength observations (simultaneous, near-simultaneous, and following the evolution over days/weeks) would be extremely helpful. If you can observe simultaneously with HST and/or RXTE, high time-resolution data (< 10 seconds) will be particularly useful.

  15. Prevalence of Elevated Blood Pressure in Hispanic versus Non-Hispanic 6th Graders

    ERIC Educational Resources Information Center

    Tarlton, Patricia A.

    2007-01-01

    Blood pressure screening was conducted on 4,311 (Hispanic n = 763 [17.7%], White n = 2,566 [59.5%], African American n = 610 [14.1%], Asian n = 136 [3.2%], Multiracial n = 231 [5.4%], and Native American n = 5 [0.1%]) 6th-grade students enrolled in Seminole County, Florida, Public Schools from August to December 2005. Prevalence of obesity was 21%…

  16. Prevalence of Elevated Blood Pressure in Hispanic versus Non-Hispanic 6th Graders

    ERIC Educational Resources Information Center

    Tarlton, Patricia A.

    2007-01-01

    Blood pressure screening was conducted on 4,311 (Hispanic n = 763 [17.7%], White n = 2,566 [59.5%], African American n = 610 [14.1%], Asian n = 136 [3.2%], Multiracial n = 231 [5.4%], and Native American n = 5 [0.1%]) 6th-grade students enrolled in Seminole County, Florida, Public Schools from August to December 2005. Prevalence of obesity was 21%…

  17. Improving Recruiting of the 6th Recruiting Brigade Through Statistical Analysis and Efficiency Measures

    DTIC Science & Technology

    2014-12-01

    Spanish Chinese Tagalog Thai Vietnamese Korean Portuguese Recruiters w/ Secondary Language TOTAL Ratio BN Regions 6F2- SAN GABRIEL VL 30 5 1 1 0 0...predominate poses a. unique challenge for the 6th REC BDE. This research explores statistically the effect that recmiters with additional language ability...have on improving recmiting. Also, it examines how significant it would be to allocate recruiters with secondary languages in areas where those

  18. Recurrent 6th nerve palsy in a child following different live attenuated vaccines: case report

    PubMed Central

    2012-01-01

    Background Recurrent benign 6th nerve palsy in the paediatric age group is uncommon, but has been described following viral and bacterial infections. It has also been temporally associated with immunization, but has not been previously described following two different live attenuated vaccines. Case presentation A case is presented of a 12 month old Caucasian boy with recurrent benign 6th nerve palsy following measles-mumps-rubella and varicella vaccines, given on separate occasions with complete recovery following each episode. No alternate underlying etiology was identified despite extensive investigations and review. Conclusions The majority of benign 6th nerve palsies do not have a sinister cause and have an excellent prognosis, with recovery expected in most cases. The exact pathophysiology is unknown, although hypotheses including autoimmune mechanisms and direct viral invasion could explain the pathophysiology behind immunization related nerve palsies. It is important to rule out other aetiologies with thorough history, physical examination and investigations. There is limited information in the literature regarding the safety of a repeat dose of a live vaccine in this setting. Future immunizations should be considered on a case-by-case basis. PMID:22545865

  19. 6th Annual Symposium on Self-Monitoring of Blood Glucose (SMBG) Applications and Beyond, April 25–27, 2013, Riga, Latvia

    PubMed Central

    Schlaeger, Christof; Hinzmann, Rolf

    2013-01-01

    Abstract International experts in the fields of diabetes, diabetes technology, endocrinology, and pediatrics gathered for the 6th Annual Symposium on Self-Monitoring of Blood Glucose (SMBG) Applications and beyond. The aim of this meeting was to continue setting up a global network of experts in this field and provide an international platform for exchange of ideas to improve life for people with diabetes. The 2013 meeting comprised a comprehensive scientific program, parallel interactive workshops, and two keynote lectures. All these discussions were intended to help identify gaps and areas where further scientific work and clinical studies are warranted. PMID:24074038

  20. 6(th) Annual Symposium on Self-Monitoring of Blood Glucose (SMBG) applications and beyond, April 25-27, 2013, Riga, Latvia.

    PubMed

    Alzaid, Aus; Schlaeger, Christof; Hinzmann, Rolf

    2013-12-01

    International experts in the fields of diabetes, diabetes technology, endocrinology, and pediatrics gathered for the 6(th) Annual Symposium on Self-Monitoring of Blood Glucose (SMBG) Applications and beyond. The aim of this meeting was to continue setting up a global network of experts in this field and provide an international platform for exchange of ideas to improve life for people with diabetes. The 2013 meeting comprised a comprehensive scientific program, parallel interactive workshops, and two keynote lectures. All these discussions were intended to help identify gaps and areas where further scientific work and clinical studies are warranted.

  1. Improving 6th Grade Climate Literacy using New Media (CLINM) and Teacher Professional Development

    NASA Astrophysics Data System (ADS)

    Smith, G.; Schmidt, C.; Metzger, E. P.; Cordero, E. C.

    2012-12-01

    The NASA-funded project, Improving 6th Grade Climate Literacy using New Media (CLINM), is designed to improve the climate literacy of California's 450,000 6th-grade students through teacher professional development that presents climate change as an engaging context for teaching earth science standards. The project fosters experience-based interaction among learners and encourages expressive creativity and idea-exchange via the web and social media. The heart of the CLINM project is the development of an online educator-friendly experience that provides content expert-reviewed, teacher-tested, standards-based educational resources, classroom activities and lessons that make meaningful connections to NASA data and images as well as new media tools (videos, web, and phone applications) based on the Green Ninja, a climate-action superhero who fights global warming by inspiring personal action (www.greenninja.info). In this session, we will discuss this approach to professional development and share a collection of teacher-tested CLINM resources. CLINM resources are grounded in earth system science; classroom activities and lessons engage students in exploration of connections between natural systems and human systems with a particular focus on how climate change relates to everyone's need for food, water, and energy. CLINM uses a team-based approach to resource development, and partners faculty in San José State University's (SJSU) colleges of Science, Education, and Humanities and the Arts with 6th-grade teachers from local school districts, a scientist from NASA Ames Research Center and climate change education projects at Stanford University, the University of Nebraska at Lincoln, and the University of Idaho. Climate scientists and other content experts identify relevant concepts and work with science educators to develop and/or refine classroom activities to elucidate those concepts; activities are piloted in pre-service science methods courses at SJSU and in

  2. Bone Lose of the Ancient Mediterranean lumbar vertebrae : Iasos, 6th century ad.

    NASA Astrophysics Data System (ADS)

    Kaya, Serdar; Solmaz, Ilker; Ilıca, A. Turan; Karaçalıoğlu, Özgür; Damla Yılmaz, Nalan; Başoğlu, Okşan; Kılıc, Selim; Izci, Yusuf

    Evaluation of bone mineral density (BMD) of the ancient peoples has received great interest by anthropologists. The aims of this study are to investigate the lumbar vertebrae of the Iasos people during the Byzantine period, in order to determine the prevalence of bone loss and to interpret dietary conditions of ancient Mediterranean populations. Lumbar vertebrae belonging to twenty eight skeletons of the 6th c AD were analyzed by radiographs and dual energy X-ray absorptiometry. The BMD values for each biologic sex and age group were compared. The correlation between the BMD and radiological features was also analyzed. The mean BMD was 0.940 g/cm2. BMD was decreased by aging in both sexes, but it was not significant. Osteopenia was found in 11 (39%) and osteoporosis in 4 (14.3%) out 28 vertebrae. The BMD was normal in 13 (46%) out of 28 vertebrae. Osteopenia was present in 7 (38%) of 18 male vertebrae and 4 (40%) of 10 female vertebrae. The spine score was high in the male group and there was a strong positive correlation between the BMD and spine score for both sexes. This study revealed that the BMD decreased by aging and that osteopenia was a problem in both sexes of the Iasos people during the 6th c AD. There was no correlation between the BMD and radiological features for age groups and biological sexes.

  3. Periodontal treatment need of the 6th-grade Jordanian pupils.

    PubMed

    Hamasha, A A; Albashaireh, Z

    2006-05-01

    The purpose of this study was to assess the periodontal treatment needs of 6th-grade Jordanian pupils aged 12 years old. Forty-eight classes teaching 6th-grade pupils were randomly selected from the six education zones in Irbid region, Jordan. The data were collected during interviews and clinical examinations using the Community Periodontal Index of Treatment Needs (CPITN) criteria. The findings revealed that 27.5% of the examined pupils had healthy periodontium, 22.9% showed gingival bleeding on probing but no calculus, and 31.4% had calculus deposits. Pockets in the 4-5 mm range were found in 17.6% and those in the>6 mm range in 0.6% of the pupils. Healthy periodontium was found in 2.9 sextants, whereas 2.7 sextants showed gingival bleeding and calculus. Periodontal pockets were demonstrated in less than 0.4 sextants. Periodontal therapy was not required for 27.5% of the pupils. The rest of the pupils (72.5%), however, needed oral hygiene improvement, and of these 50% required professional calculus removal. This study indicated that about 73% of the sample needed oral hygiene instructions and motivation, 50% needed professional scaling, and 0.6% needed periodontal therapy. The data of this study establish a baseline data, which may help in planning dental services and initiating further research.

  4. 6th National Occupational Injury Research Symposium: Advancing Occupational Injury Research Through Integration and Partnership.

    PubMed

    Castillo, Dawn N; Schuler, Christine R; Menéndez, Cammie Chaumont

    2017-02-01

    The National Occupational Injury Research Symposium (NOIRS) is the only regularly held forum exclusively dedicated to occupational injury research and prevention. The 2015 conference theme, advancing occupational injury research through integration and partnership, shaped the conference and is reflected in articles selected for this special issue. The 6th NOIRS, held May 19-21, 2015, brought together more than 250 researchers, occupational safety practitioners and students to share and discuss occupational injury research. Articles in this special issue highlight some of the research presented at the conference, reflect multiple scientific disciplines and approaches, cover a breadth of occupational injury causes and worker populations, and provide examples of research advanced by partnerships. The next NOIRS, tentatively scheduled for 2018, will build upon the theme of integration and partnership as well as feedback from conference attendees. Published by Elsevier Ltd.

  5. Uranium groundwater anomalies and L'Aquila earthquake, 6th April 2009 (Italy).

    PubMed

    Plastino, Wolfango; Povinec, Pavel P; De Luca, Gaetano; Doglioni, Carlo; Nisi, Stefano; Ioannucci, Luca; Balata, Marco; Laubenstein, Matthias; Bella, Francesco; Coccia, Eugenio

    2010-01-01

    Monitoring of chemical and physical groundwater parameters has been carried out worldwide in seismogenic areas with the aim to test possible correlations between their spatial and temporal variations and strain processes. Uranium (U) groundwater anomalies were observed during the preparation phases of the recent L'Aquila earthquake of 6th April 2009 in the cataclastic rocks near the overthrust fault crossing the deep underground Gran Sasso National Laboratory. The results suggest that U may be used as a potential strain indicator of geodynamic processes occurring before the seismic swarm and the main earthquake shock. Moreover, this justifies the different radon patterns before and after the main shock: the radon releases during and after the earthquake are much than more during the preparatory period because the process does not include only the microfracturing induced by stress-strain activation, but also radon increases accompanying groundwater U anomalies.

  6. Summary of the 6th asia-pacific transport working group (APTWG) meeting

    NASA Astrophysics Data System (ADS)

    Jhang, Hogun; Ghim, Y.-c.; Wang, Zheng-Xiong; Kwon, J. M.; Tamura, N.

    2017-08-01

    This report summarizes the contributions to, and discussions at, the 6th Asia-Pacific Transport Working Group (APTWG) meeting, held on 21-25 June 2016 at Korea University, Seoul, Republic of Korea. The objective of the meeting was to develop an integrated understanding of transport phenomena in magnetically confined plasmas. To accomplish this objective, four technical working groups were organized under the headings: (1) turbulence suppression and transport bifurcation, (2) effect of magnetic topology on transport and magnetohydrodynamics-turbulence interaction, (3) nonlocality and non-diffusive transport, and (4) Energetic particles and particle/impurity transport. A summary is also given of the three plenary review talks on impurity transport, the magnetohydrodynamics relaxation process in reversed field pinch, and recent experimental and modelling results on the quiescent H-mode operation.

  7. Statistical Analysis of CFD Solutions from the 6th AIAA CFD Drag Prediction Workshop

    NASA Technical Reports Server (NTRS)

    Derlaga, Joseph M.; Morrison, Joseph H.

    2017-01-01

    A graphical framework is used for statistical analysis of the results from an extensive N- version test of a collection of Reynolds-averaged Navier-Stokes computational uid dynam- ics codes. The solutions were obtained by code developers and users from North America, Europe, Asia, and South America using both common and custom grid sequencees as well as multiple turbulence models for the June 2016 6th AIAA CFD Drag Prediction Workshop sponsored by the AIAA Applied Aerodynamics Technical Committee. The aerodynamic con guration for this workshop was the Common Research Model subsonic transport wing- body previously used for both the 4th and 5th Drag Prediction Workshops. This work continues the statistical analysis begun in the earlier workshops and compares the results from the grid convergence study of the most recent workshop with previous workshops.

  8. Rapid landscape change in 6th century northern Jordan: interdisciplinary geoarchaeological perspectives

    NASA Astrophysics Data System (ADS)

    Lucke, Bernhard

    2016-04-01

    Landscapes of the ancient fertile crescent are considered affected by soil degradation as result of long-term farming since the Neolithic, and impressive ruins of antiquity led to assumptions that their abandonment must have been conntected with reduced agricultural productivity. In this context, a valley fill near the site of Abila of the Decapolis in northern Jordan was apparently deposited largely during the 6th century AD, and provides evidence for a rapid and intense landscape change during the Late Byzantine period. However, an interdisciplinary case study of land use, soil development, and sediments found that the valley fill cannot be connected with large-scale soil erosion in the vicinity of the site. On the one hand, this is indicated by the distribution of soil development and archaeological material as marker of past land use activity in the past, which suggests that the best soils were and still are used intensively. On the other hand, the sediments seem to point to the occurrence of climatic extremes such as heavy floods, the occurrence of soil creep after water saturation, but also a significant shift to aridity which may have triggered socio-economic changes of subsistence strategies from agriculture to pastoralism. The dates of sediments which are available so far indicate that the climatic change seemingly occurred rapidly within approximately 100 years during the late 6th and early 7th century AD, possibly connected with the "year without sun" or 'Mystery Veil' which the Byzantine historian Procopius described in the year 536 AD. Modern analogies of the Pinatubo eruption in 1991 let it seem possible that a volcanic event, perhaps the outbreak of the Ilopango volcano, was connected with these environmental turbulences. Such events cannot be understood by isolated studies: without a broad interdisciplinary framework, single archives are prone to misinterpretation, and our understanding of the environmental history of Abila is still very limited.

  9. An integrated exploration model for Council Run field analogs: Regional geology and seismic stratigraphy of Devonian 6th Elk sandstones

    SciTech Connect

    Kelleher, G.; Johnson, R. )

    1991-08-01

    A geologic study of the Devonian Lock Haven 6th Elk formation along the structural front of Pennsylvania and Maryland suggest that present-day structures were active at the time of deposition. These structures barred deposition to the west and helped to localize sands in a northeast-southwest fairway. The 6th Elk sandstones occur in two major depositional lobes (located in Centre and Somerset counties in Pennsylvania, and Garret County, Maryland) and were deposited on a shallow-marine shelf by turbidity currents and later modified by storm-generated currents. Deposition of 6th Elk sands may also have been influenced by cross-strike discontinuities. A seismic study of the Council Run field aids in subsurface identification of the 6th Elk. A high-amplitude seismic anomaly across the Council Run field is correlated with increasing san thickness. Two dimensional modeling suggests that the seismic response is extremely sensitive to specific acquisition and processing techniques including filter and phase variability. Additional attribute analysis integrates the seismic data with the forward models. This results in a predictive method for potentially identifying 6th Elk sandstone development from seismic data. Applying the results of the seismic modeling at Council Run field to a seismic grid across the previously defined 6th Elk depositional fairway has identified many exploratory prospects in Lycoming and Bradford counties, Pennsylvania. This area coincides with the site of a third, previously documented, Upper Devonian depositional lobe.

  10. The IEEE Software Engineering Standards Process

    PubMed Central

    Buckley, Fletcher J.

    1984-01-01

    Software Engineering has emerged as a field in recent years, and those involved increasingly recognize the need for standards. As a result, members of the Institute of Electrical and Electronics Engineers (IEEE) formed a subcommittee to develop these standards. This paper discusses the ongoing standards development, and associated efforts.

  11. Verification of IEEE Compliant Subtractive Division Algorithms

    NASA Technical Reports Server (NTRS)

    Miner, Paul S.; Leathrum, James F., Jr.

    1996-01-01

    A parameterized definition of subtractive floating point division algorithms is presented and verified using PVS. The general algorithm is proven to satisfy a formal definition of an IEEE standard for floating point arithmetic. The utility of the general specification is illustrated using a number of different instances of the general algorithm.

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

    DTIC Science & Technology

    2011-05-27

    management activities may be assured in accordance with the clauses of ISO 9001 . ©2011 Walz Map Process Areas to P730 Tasks 20 CMMI has several...TAG to ISO TC 176 Quality Management • Quality: ASQ, work experience • Software: three books, consulting, work experience • Systems: Telecom & DoD...welcome audience feedback and support to enhance this IEEE 730 guidance 3 IS: International Standard, IEEE/ ISO /IEC ©2011 Walz Life Cycle Process

  13. Risk Management Supplement to IEEE-15288.1

    DTIC Science & Technology

    2015-05-15

    AND MISSILE SYSTEMS CENTER TAILORING RISK MANAGEMENT SUPPLEMENT TO IEEE -15288.1 APPROVED FOR PUBLIC RELEASE...IEC- IEEE -15288: 2015, SYSTEMS AND SOFTWARE ENGINEERING — SYSTEM LIFE CYCLE PROCESSES...1 2.2. IEEE -15288.1: 2015, STANDARD FOR APPLICATION OF SYSTEMS ENGINEERING ON DEFENSE PROGRAMS

  14. Computer Controlled Test Systems. Introduction. A Course Based on the IEEE 488 Bus.

    ERIC Educational Resources Information Center

    Herrmann, Eric J.

    An introductory course in computer automated tests and measurement systems based on the International Test Instrument-Computer Interface Standard, the IEEE (Institute of Electrical and Electronics Engineers)-488, is presented in this study guide. This course is designed to: (1) introduce the electronics engineering technician to the functional…

  15. Computer Controlled Test Systems. Introduction. A Course Based on the IEEE 488 Bus.

    ERIC Educational Resources Information Center

    Herrmann, Eric J.

    An introductory course in computer automated tests and measurement systems based on the International Test Instrument-Computer Interface Standard, the IEEE (Institute of Electrical and Electronics Engineers)-488, is presented in this study guide. This course is designed to: (1) introduce the electronics engineering technician to the functional…

  16. Latina girls' identities-in-practice in 6th grade science

    NASA Astrophysics Data System (ADS)

    Tan, Edna

    Inequalities and achievement gaps in science education among students from different racial and socioeconomic backgrounds as well as between genders in the United States are due to not just access to resources, but also to the incongruence between identities of school science with identities salient to minority students. Minority girls are especially portrayed to be estranged from prototypical school science Discourse, often characterized as white, middle class, and masculine. This dissertation, based on a two-year ethnographic study in an urban middle school in New York City, describes the authoring of novel identities-in-practice of minority girls in a 6th grade science classroom. The findings indicate that minority girls draw from out-of-school identities salient to them to author novel identities-in-practice in the various figured worlds of the 6th grade science classroom. Through taking such authorial stances, minority girls exhibit agency in negotiating for wider boundaries in their school science participation and broker for hybrid spaces of school science where the school science Discourse was destabilized and challenged to be more inclusive of everyday funds of knowledge and Discourses important to the students. The findings also highlight the dialectic relationship between an individual students' learning and participation and the school science community-of-practice and the implications such a relationship has on the learning of both individual students and the collective community-of-practice. From year one findings, curricular adaptations were enacted, with teacher and student input, on lessons centering on food and nutrition. The adapted curriculum specifically solicited for nontraditional funds of knowledge and Discourse from students and were grounded strongly in relevance to students' out of school lives. The hybrid spaces collectively brokered for by the community-of-practice were transformed in three ways: physically, politically, and

  17. In vitro Comparative Evaluation of Tensile Bond Strength of 6(th), 7(th) and 8(th) Generation Dentin Bonding Agents.

    PubMed

    Kamble, Suresh S; Kandasamy, Baburajan; Thillaigovindan, Ranjani; Goyal, Nitin Kumar; Talukdar, Pratim; Seal, Mukut

    2015-05-01

    Newer dentin bonding agents were developed to improve the quality of composite restoration and to reduce time consumption in its application. The aim of the present study was to evaluate tensile bond strength of 6(th), 7(th) and 8(th) generation bonding agents by in vitro method. Selected 60 permanent teeth were assigned into 20 in each group (Group I: 6(th) generation bonding agent-Adper SE plus 3M ESPE, Group II: 7(th) generation bonding agent-G-Bond GC Corp Japan and Group III: 8(th) generation dentin adhesives-FuturaBond, DC, Voco, Germany). With high-speed diamond disc, coronal dentin was exposed, and selected dentin bonding agents were applied, followed by composite restoration. All samples were saved in saline for 24 h and tensile bond strength testing was done using a universal testing machine. The obtained data were tabulated and statistically analyzed using ANOVA test. The tensile bond strength readings for 6(th) generation bonding agent was 32.2465, for 7(th) generation was 31.6734, and for 8(th)-generation dentine bonding agent was 34.74431. The highest tensile bond strength was seen in 8(th) generation bonding agent compared to 6(th) and 7(th) generation bonding agents. From the present study it can be conclude that 8(th) generation dentine adhesive (Futura DC, Voco, Germany) resulted in highest tensile bond strength compared to 6(th) (Adper SE plus, 3M ESPE) and 7(th) generation (G-Bond) dentin bonding agents.

  18. Leather material found on a 6th B.C. Chinese bronze sword: A technical study

    NASA Astrophysics Data System (ADS)

    Luo, Wugan; Si, Yi; Wang, Hongmin; Qin, Ying; Huang, Fengchun; Wang, Changsui

    2011-09-01

    During July to November, 2006, an important archaeological excavation was conducted in Yun country, Hubei province, southern China. Chinese archaeologists found some remnant of leather materials, covered with red pigments, on a 6th century B.C. Chinese bronze sword. To understand the technology/ies that may have been utilized for manufacturing the leathers, a combined of Raman spectroscopy, FT-IR and XRF was thus applied to the remnant of leather materials. Raman analyses showed that red pigment on the leather was cinnabar (HgS). FT-IR and XRF analyses indicated that the content of some elements, such as Ca (existing as CaCO 3) and Fe (existing as Fe 2O 3), were much higher than those in the surrounding grave soil. The results inferred an application of lime depilation and retting, and the Fe-Al compound salt as tanning agent. And it was furthermore implicated that the Fe-Al salt tanning technique had been developed in the middle and late Spring and Autumn Period of China.

  19. Prevalence of elevated blood pressure in Hispanic versus non-Hispanic 6th graders.

    PubMed

    Tarlton, Patricia A

    2007-02-01

    Blood pressure screening was conducted on 4,311 (Hispanic n = 763 [17.7%], White n = 2,566 [59.5%], African American n = 610 [14.1%], Asian n = 136 [3.2%], Multiracial n = 231 [5.4%], and Native American n = 5 [0.1%]) 6th-grade students enrolled in Seminole County, Florida, Public Schools from August to December 2005. Prevalence of obesity was 21% for the overall population, with Hispanics n = 218 (28.6%) having a greater prevalence than non-Hispanics n = 630 (19.0%). Following a second screening, overall prevalence of elevated blood pressure was 1.9%, with Hispanics at 2.6% versus 1.6% for non-Hispanics. This was found to be significant when Hispanics were further compared to the White population. However, when adjusted for obesity, elevated blood pressure was not significant for Hispanics. Results confirm the presence of elevated blood pressure and obesity in all population groups, with an elevated risk for both among the Hispanic population.

  20. The relationship between snack intake and its availability of 4th-6th graders in Taiwan.

    PubMed

    Hang, Chi-Ming; Lin, Wei; Yang, Hsiao-Chi; Pan, Wen-Harn

    2007-01-01

    The purpose of this study was to examine the relationship between the snack intake and snack availability of elementary school children. Data analyzed were from 722 4th to 6th graders' food availability and food intake questionnaires collected in the Nutrition and Health Survey in Taiwan Elementary School Children 2001-2002. The snacks commonly eaten were divided into two groups. Healthy snacks included dairy products, 100% fruit juice and fresh fruits. Unhealthy snacks included high fat/sugar snacks, cookies, candy, carbonated/sugared beverages and fast food. Structural equating modeling was used to test the models that describe the availability and intake of two snack groups. Results indicated that parents' intake and children's preference were major predictors of children intake of both healthy and unhealthy snacks. Other than that, the intake of unhealthy snacks was positively associated with "purchase by children themselves" but not the intake of healthy snacks, which was influenced predominantly by "present in home". The results support the perception that a positive family food environment is important for improving children's diet quality. To build a healthy family food environment, parents have to not only provide healthy snacks but also limit the unhealthy snacks in home. In addition to that, the role modeling of parents as eating healthy snacks instead of unhealthy snacks themselves may help children to develop similar behaviors.

  1. Leather material found on a 6th B.C. Chinese bronze sword: a technical study.

    PubMed

    Luo, Wugan; Si, Yi; Wang, Hongmin; Qin, Ying; Huang, Fengchun; Wang, Changsui

    2011-09-01

    During July to November, 2006, an important archaeological excavation was conducted in Yun country, Hubei province, southern China. Chinese archaeologists found some remnant of leather materials, covered with red pigments, on a 6th century B.C. Chinese bronze sword. To understand the technology/ies that may have been utilized for manufacturing the leathers, a combined of Raman spectroscopy, FT-IR and XRF was thus applied to the remnant of leather materials. Raman analyses showed that red pigment on the leather was cinnabar (HgS). FT-IR and XRF analyses indicated that the content of some elements, such as Ca (existing as CaCO3) and Fe (existing as Fe2O3), were much higher than those in the surrounding grave soil. The results inferred an application of lime depilation and retting, and the Fe-Al compound salt as tanning agent. And it was furthermore implicated that the Fe-Al salt tanning technique had been developed in the middle and late Spring and Autumn Period of China.

  2. Summary of the 6th Annual Bladder Cancer Think Tank: new directions in urologic research.

    PubMed

    Svatek, Robert S; Rosenberg, Jonathan E; Galsky, Matthew D; Lee, Cheryl T; Latini, David M; Bochner, Bernard H; Weizer, Alon Z; Apolo, Andrea B; Sridhar, Srikala S; Kamat, Ashish M; Hansel, Donna; Flaig, Thomas W; Smith, Norm D; Lotan, Yair

    2013-10-01

    The 6th Annual Bladder Cancer Think Tank brought together a multidisciplinary group of clinicians, researchers, and representatives from the National Cancer Institute and Industry in an effort to advance bladder cancer research efforts. This year's meeting comprised panel discussions and research involving 5 separate working groups, including the Survivorship, Clinical Trials, Standardization of Care, Data Mining, and Translational Science working groups. In this manuscript, the accomplishments and objectives of the working groups are summarized. Notable efforts include: (1) the development of a survivorship care plan for early and late-stage bladder cancer; (2) the development of consensus criteria for eligibility and endpoints for bladder cancer clinical trials; (3) an improved understanding of current practice patterns regarding the use of perioperative chemotherapy in an effort to standardize care; (4) creation of a comprehensive handbook to assist researchers with developing bladder cancer databases; and (5) identification of response to therapy of high-grade non muscle invasive disease through a collaborative exchange of expertise and resources.

  3. Proceedings of the 6th US/German Workshop on Salt Repository Research, Design, and Operation

    SciTech Connect

    Hansen, Francis D.; Walter Steininger; Wilhelm Bollingerfehr

    2016-01-11

    The 6th US/German Workshop on Salt Repository Research, Design, and Operation was held in Dresden. Germany on September 7-9, 2015. Over seventy participants helped advance the technical basis for salt disposal of radioactive waste. The number of collaborative efforts continues to grow and to produce useful documentation, as well as to define the state of the art for research areas. These Proceedings are divided into Chapters, and a list of authors is included in the Acknowledgement Section. Also in this document are the Technical Agenda, List of Participants, Biographical Information, Abstracts, and Presentations. Proceedings of all workshops and other pertinent information are posted on websites hosted by Sandia National Laboratories and the Nuclear Energy Agency Salt Club. The US/German workshops provide continuity for long-term research, summarize and publish status of mature areas, and develop appropriate research by consensus in a workshop environment. As before, major areas and findings are highlighted, which constitute topical Chapters in these Proceedings. In total, the scientific breadth is substantial and while not all subject matter is elaborated into chapter format, all presentations and abstracts are published in this document. In the following Proceedings, six selected topics are developed in detail.

  4. Synopsis of the 6th Walker's Cay Colloquium on Cancer Vaccines and Immunotherapy.

    PubMed

    Kast, W Martin; Levitsky, Hyam; Marincola, Francesco M

    2004-06-22

    The 6th annual Cancer Vaccines and Immunotherapy Colloquium at Walker's Cay was held under the auspices of the Albert B. Sabin Vaccine Institute on March 10-13, 2004. The Colloquium consisted of a select group of 34 scientists representing academia, biotechnology and pharmaceutical industry. The main goal of this gathering was to promote in a peaceful and comfortable environment exchanges between basic and clinical science. The secondary benefit was to inspire novel bench to bedside ventures and at the same time provide feed back about promising and/or disappointing clinical results that could help re-frame some scientific question or guide the design of future trials. Several topics were covered that included tumor antigen discovery and validation, platforms for vaccine development, tolerance, immune suppression and tumor escape mechanisms, adoptive T cell therapy and dendritic cell-based therapies, clinical trials and assessment of response. Here we report salient points raised by speakers or by the audience during animated discussion that followed each individual presentation.

  5. Defining the IEEE-854 floating-point standard in PVS

    NASA Technical Reports Server (NTRS)

    Miner, Paul S.

    1995-01-01

    A significant portion of the ANSI/IEEE-854 Standard for Radix-Independent Floating-Point Arithmetic is defined in PVS (Prototype Verification System). Since IEEE-854 is a generalization of the ANSI/IEEE-754 Standard for Binary Floating-Point Arithmetic, the definition of IEEE-854 in PVS also formally defines much of IEEE-754. This collection of PVS theories provides a basis for machine checked verification of floating-point systems. This formal definition illustrates that formal specification techniques are sufficiently advanced that is is reasonable to consider their use in the development of future standards.

  6. Islet cell research brings hope for a diabetes cure: meeting report from the 6(th) annual islet society meeting in Stellenbosch, South Africa.

    PubMed

    Tchokonte-Nana, V; Cockburn, I L; Manda, J K; Kotze, P C; Johnson, J D

    2014-01-01

    The International Diabetes Federation predicts that, over the next twenty years, the largest increase in the prevalence of diabetes will be in the Africa region. Recognizing an unmet need for more focus on Africa and engagement with African scholars, the Islet Society held its 6th annual meeting July 20-21, 2014 in Stellenbosch, South Africa. Here, we present a report that covers the presentations and discussion points from that meeting. Work was presented on a variety of topics and included presentations by a significant proportion of Africa diabetes researchers. Overall, it was an excellent conference, with many new international collaborations initiated. We hope that other groups will also respond to the need for more conferences in Africa and focused on Africa.

  7. Proceedings of the Organization of 1990 Meeting of International Neural Network Society Jointed with IEEE Held in Washington, DC on January 15 - 19, 1990. Volume 1. Theory Track Neural and cognitive Sciences Track

    DTIC Science & Technology

    1990-11-30

    explanation for the fact that a brain is capable of development, perception, memory and learning. According to the theory a brain is dynamically organized...Having In mind these experimental facts and theoretical results from the information theory , we believe that MT’s dynamic activity in the process of... Theory Track Neural and Cognitive Sciences Track 92-05676 co-sponsored by the International Neural Network Society and the Institute of Electrical and

  8. [Myocardial perfusion scintigraphy 2012 in Germany. Results of the 6th Query].

    PubMed

    Lindner, O; Burchert, W; Schäfers, M; Schaefer, W

    2014-01-01

    The working group Cardiovascular Nuclear Medicine of the German Society of Nuclear Medicine presents the results of the 6th survey on myocardial perfusion scintigraphy (MPS) of the reporting year 2012. 278 questionnaires (177 private practices (PP), 78 hospitals (HO), 23 university hospitals (UH)) were evaluated. MPS of 105,941 patients were reported. 95% [2005 = 80%] of MPS studies were conducted with (99m)Tc perfusion radiopharmaceuticals and only 5% with 201Tl. 79% [2009 = 76%] of the MPS were performed in PP, 15% [2009 = 17%] in HO, and 6% [2009 = 7%] in UH. Data from 108 centres which participated in all surveys from 2005 to 2012 showed an increase in MPS numbers of 4.0% (PP +6.1%, HO +18.2%, UH -18.3%). 29% of all participants (27% of PP, 31% of HO, and 26% of UH) noticed no change and 26% of all participants (28% of PP, 17% of HO and 35% of UH) an increase in their MPS requests since the 2009 query. The type of stress was pharmacological in 39% [2009 = 31%]. Of these 61% with adenosine (39% with exercise), 22% with regadenoson (51% with exercise), 14% with dipyridamole (60% with exercise), and 3% with dobutamine. Gated SPECT was performed in 73% [2009 = 56%] of all rest, in 70% [2009 = 56%] of all stress and in 67% [47%] of all stress and rest MPS. Only 36% [2009 = 33%] of the centres performed a quantification of all their studies with scores, whereas 41% [2009 = 52%] did not apply any quantification. 60% [2009 = 49%] of the MPS were requested by ambulatory care cardiologists. The survey on MPS in Germany reveals a good conformity of imaging procedures with the current guideline. A positive development in MPS practice and referral can be stated. However, there is still some potential of MPS processing considering the quantitative perfusion analysis.

  9. IEEE 802.11 Wireless LAN Security White Paper

    SciTech Connect

    King, J

    2001-10-22

    Given the increased productivity and growing popularity of wireless communications in general, and wireless data communications in particular, this paper outlines the protocols, security implications, and architectures of IEEE Std. 802.11-1999 wireless LANs (WLANs) and makes recommendations regarding a phased implementation of WLANs at LLNL. This project is driven by the need for convenient and secure access to the Internet for Laboratory visitors and to the internal network for Laboratory employees. A solid architecture designed with a priority on security will allow LLNL to offer network access in areas where it is traditionally hard to deploy wired networks. It will also enable such services as wireless access for inventory control and convenient network access for conference rooms around LLNL. Wireless network access has the potential to increase productivity by enabling instant access to information.

  10. Environmental Attitudes of the 6th Grade Students from Rural and Urban Areas: A Case Study for Ankara

    ERIC Educational Resources Information Center

    Tuncer, Gaye; Sungur, Semra; Tekkaya, Ceren; Ertepinar, Hamide

    2004-01-01

    This study investigated environmental attitude of 6th grade students living in rural and urban areas in Ankara. Hundred and thirty-eight students were selected from four schools located in these areas. A 45-item questionnaire consisting of four dimensions was used to measure students' environmental attitude. Results of the study revealed that,…

  11. Story Telling: Research and Action to Improve 6th Grade Students' Views about Certain Aspects of Nature of Science

    ERIC Educational Resources Information Center

    Kahraman, Feray; Karatas, Faik Özgür

    2015-01-01

    This study is a four-week section of ongoing attempts that aim to improve 6th grade students' understandings of the nature of science. The study was carried out in a sixth grade science and technology class at a rural middle school with 15 students on the basis of action research methodology. During the study, four different stories based on the…

  12. Examining Students' Views on the Nature of Science: Results from Korean 6th, 8th, and 10th Graders

    ERIC Educational Resources Information Center

    Kang, Sukjin; Scharmann, Lawrence C.; Noh, Taehee

    2005-01-01

    In this study, students' views on the nature of science (NOS) were investigated with the use of a large-scale survey. An empirically derived multiple-choice format questionnaire was administered to 1702 Korean 6th, 8th, and 10th graders. The questionnaire consisted of five items that respectively examined students' views on five constructs…

  13. A Critical Analysis of Academic & Recreational Reading Motivation and Its Correlation to Reading FCAT Performance for 6th Grade Students

    ERIC Educational Resources Information Center

    DiBella, Karen S.

    2014-01-01

    The purpose of this study was to measure the motivation for academic and recreational reading of 6th grade students in a middle school located in southwest Florida using the Elementary Reading Attitude Survey (ERAS). In this mixed methods study, motivation for both types of reading were measured, individual demographics of the population, such as…

  14. The Effects of a Traditional and Technology-Based After-School Program on 6th Grade Student's Mathematics Skills

    ERIC Educational Resources Information Center

    Hu, Xiangen; Craig, Scotty D.; Bargagliotti, Anna E.; Graesser, Arthur C.; Okwumabua, Theresa; Anderson, Celia; Cheney, Kyle R.; Sterbinsky, Allan

    2012-01-01

    This study investigated the effectiveness of the Assessment and LEarning in Knowledge Spaces (ALEKS) system as a method of strategic intervention in after-school settings to improve the mathematical skills of struggling 6th grade students. Students were randomly assigned to after-school classrooms in which they either worked with ALEKS to improve…

  15. Assessment of 6th Grade Elementary School Students, Their Parents' and Branch Teachers' Perspective on Physical Education Classes

    ERIC Educational Resources Information Center

    Boyraz, Sirin; Ozbar, Nurper; Yetgin, Meral Kucuk; Koksalan, Burke

    2015-01-01

    A total of 437 volunteers including 54 teachers, 218 6th grade students and 102 parents from Beykoz Elementary Schools participated in this study to understand the perspectives of students, families and teachers on Physical Education classes. The perspectives of students, families and teachers of other branches are identified by survey method.…

  16. Story Telling: Research and Action to Improve 6th Grade Students' Views about Certain Aspects of Nature of Science

    ERIC Educational Resources Information Center

    Kahraman, Feray; Karatas, Faik Özgür

    2015-01-01

    This study is a four-week section of ongoing attempts that aim to improve 6th grade students' understandings of the nature of science. The study was carried out in a sixth grade science and technology class at a rural middle school with 15 students on the basis of action research methodology. During the study, four different stories based on the…

  17. A Critical Analysis of Academic & Recreational Reading Motivation and Its Correlation to Reading FCAT Performance for 6th Grade Students

    ERIC Educational Resources Information Center

    DiBella, Karen S.

    2014-01-01

    The purpose of this study was to measure the motivation for academic and recreational reading of 6th grade students in a middle school located in southwest Florida using the Elementary Reading Attitude Survey (ERAS). In this mixed methods study, motivation for both types of reading were measured, individual demographics of the population, such as…

  18. Primary School English Teachers' Perceptions of the English Language Curriculum of 6th, 7th and 8th Grades

    ERIC Educational Resources Information Center

    Ersen Yanik, Asli

    2008-01-01

    This study aims to investigate how the teachers who have different background characteristics perceive the goals and content of the English language curriculum implemented at the 6th, 7th and 8th grades of public primary schools. The study was conducted during the 2004-2005 school year with 368 English teachers selected from the seven regions of…

  19. Gender Representations in the Illustrations of the 6th Grade Language Textbook Used in Greek Elementary School

    ERIC Educational Resources Information Center

    Karintzaidis, Nikolaos; Christodoulou, Anastasia; Kyridis, Argyris; Vamvakidou, Ifigeneia

    2016-01-01

    This study explores the way in which the two sexes are presented in education and particularly in the illustration of the language textbook used in the 6th Grade of Greek elementary school. In a society where gender equality is constitutionally enshrined and displayed as an educational policy objective, it attempts to examine if school textbook…

  20. From Cooks to Carpenters: Measuring - A Saleable Work Skill. Occupation Simulation Packet. Grades 5th-6th.

    ERIC Educational Resources Information Center

    Kennedy, Helena

    This teacher's guide contains simulated work experiences for 5th and 6th grade students using the isolated skill concept - measuring. Teacher instructions include objectives, evaluation, and sequence of activities. The guide contains pre-tests and post-tests with instructions and answer keys. Three pre-skill activities are suggested, such as…

  1. An Early Warning System: Predicting 10th Grade FCAT Success from 6th Grade FCAT Performance. Research Brief. Volume 0711

    ERIC Educational Resources Information Center

    Froman, Terry; Brown, Shelly; Lapadula, Maria

    2008-01-01

    This Research Brief presents a method for predicting 10th grade Florida Comprehensive Assessment Test (FCAT) success from 6th grade FCAT performance. A simple equation provides the most probable single score prediction, and give-or-take error margins define high and low probability zones for expected 10th grade scores. In addition, a double-entry…

  2. Assessment of 6th Grade Elementary School Students, Their Parents' and Branch Teachers' Perspective on Physical Education Classes

    ERIC Educational Resources Information Center

    Boyraz, Sirin; Ozbar, Nurper; Yetgin, Meral Kucuk; Koksalan, Burke

    2015-01-01

    A total of 437 volunteers including 54 teachers, 218 6th grade students and 102 parents from Beykoz Elementary Schools participated in this study to understand the perspectives of students, families and teachers on Physical Education classes. The perspectives of students, families and teachers of other branches are identified by survey method.…

  3. 6th Annual European Antibody Congress 2010: November 29-December 1, 2010, Geneva, Switzerland.

    PubMed

    Beck, Alain; Wurch, Thierry; Reichert, Janice M

    2011-01-01

    The 6th European Antibody Congress (EAC), organized by Terrapinn Ltd., was held in Geneva, Switzerland, which was also the location of the 4th and 5th EAC. As was the case in 2008 and 2009, the EAC was again the largest antibody congress held in Europe, drawing nearly 250 delegates in 2010. Numerous pharmaceutical and biopharmaceutical companies active in the field of therapeutic antibody development were represented, as were start-up and academic organizations and representatives from the US Food and Drug Administration FDA. The global trends in antibody research and development were discussed, including success stories of recent marketing authorizations of golimumab (Simponi®) and canakinumab (Ilaris®) by Johnson & Johnson and Novartis, respectively, updates on antibodies in late clinical development (obinutuzumab/GA101, farletuzumab/MORAb-003 and itolizumab/T1 h, by Glycart/Roche, Morphotek and Biocon, respectively) and success rates for this fast-expanding class of therapeutics (Tufts Center for the Study of Drug Development). Case studies covering clinical progress of girentuximab (Wilex), evaluation of panobacumab (Kenta Biotech), characterization of therapeutic antibody candidates by protein microarrays (Protagen), antibody-drug conjugates (sanofi-aventis, ImmunoGen, Seattle Genetics, Wyeth/Pfizer), radio-immunoconjugates (Bayer Schering Pharma, Université de Nantes) and new scaffolds (Ablynx, AdAlta, Domantis/GlaxoSmithKline, Fresenius, Molecular Partners, Pieris, Scil Proteins, Pfizer, University of Zurich) were presented. Major antibody structural improvements were showcased, including the latest selection engineering of the best isotypes (Abbott, Pfizer, Pierre Fabre), hinge domain (Pierre Fabre), dual antibodies (Abbott), IgG-like bispecific antibodies (Biogen Idec), antibody epitope mapping case studies (Eli Lilly), insights in FcγRII receptor (University of Cambridge), as well as novel tools for antibody fragmentation (Genovis). Improvements of

  4. Storm Peak Laboratory 5th-6th Grade Climate and Weather Program

    NASA Astrophysics Data System (ADS)

    McCubbin, I. B.; Hallar, A. G.

    2008-12-01

    science. At the end of the day each student has a data sheet with measurements recorded from 5 locations of different elevations to take back to the classroom. Following the field trip, SPL scientists and educators visit the school for a follow-up to help children grasp concepts, represent their data set collected in graphical formats, answer questions, and evaluate students" learning. Currently, approximately 250 students annually participate in the SPL 5th and 6th grade climate education program.

  5. Proceedings from the 6th Annual University of Calgary Leaders in Medicine Research Symposium.

    PubMed

    Roberts, Jodie I; Beatty, Jennifer K; Peplowski, Michael A; Keough, Michael B; Yipp, Bryan G; Hollenberg, Morley D; Beck, Paul L

    2015-12-04

    On November 14, 2014, the Leaders in Medicine (LIM) program at the Cumming School of Medicine, University of Calgary hosted its 6th Annual Research Symposium. Dr. Danuta Skowronski, Epidemiology Lead for Influenza and Emerging Respiratory Pathogens at the British Columbia Centre for Disease Control (BCCDC), was the keynote speaker and presented a lecture entitled "Rapid response research during emerging public health crises: influenza and reflections from the five year anniversary of the 2009 pandemic". The LIM symposium provides a forum for both LIM and non-LIM medical students to present their research work, either as an oral or poster presentation. There were a total of six oral presentations and 77 posters presented. 
The oral presentations included: Swathi Damaraju, "The role of cell communication and 3D Cell-Matrix environment in a stem cell-based tissue engineering strategy for bone repair"; Menglin Yang, "The proteolytic activity of Nepenthes pitcher fluid as a therapeutic for the treatment of celiac disease"; Amelia Kellar, "Monitoring pediatric inflammatory bowel disease - a retrospective analysis of transabdominal ultrasound"; Monica M. Faria-Crowder, "The design and application of a molecular profiling strategy to identify polymicrobial acute sepsis infections"; Waleed Rahmani, "Hair follicle dermal stem cells regenerate the dermal sheath, repopulate the dermal papilla and modulate hair type"; and, Laura Palmer, "A novel role for amyloid beta protein during hypoxia/ischemia". 
The article on the University of Calgary Leaders in Medicine Program, "A Prescription that Addresses the Decline of Basic Science Education in Medical School," in a previous issue of CIM (2014 37(5):E292) provides more details on the program. Briefly, the LIM Research Symposium has the following objectives: (1) to showcase the impressive variety of projects undertaken by students in the LIM Program as well as University of Calgary medical students; (2) to encourage medical

  6. In vitro Comparative Evaluation of Tensile Bond Strength of 6th, 7th and 8th Generation Dentin Bonding Agents

    PubMed Central

    Kamble, Suresh S; Kandasamy, Baburajan; Thillaigovindan, Ranjani; Goyal, Nitin Kumar; Talukdar, Pratim; Seal, Mukut

    2015-01-01

    Background: Newer dentin bonding agents were developed to improve the quality of composite restoration and to reduce time consumption in its application. The aim of the present study was to evaluate tensile bond strength of 6th, 7th and 8th generation bonding agents by in vitro method. Materials and Methods: Selected 60 permanent teeth were assigned into 20 in each group (Group I: 6th generation bonding agent-Adper SE plus 3M ESPE, Group II: 7th generation bonding agent-G-Bond GC Corp Japan and Group III: 8th generation dentin adhesives-FuturaBond, DC, Voco, Germany). With high-speed diamond disc, coronal dentin was exposed, and selected dentin bonding agents were applied, followed by composite restoration. All samples were saved in saline for 24 h and tensile bond strength testing was done using a universal testing machine. The obtained data were tabulated and statistically analyzed using ANOVA test. Results: The tensile bond strength readings for 6th generation bonding agent was 32.2465, for 7th generation was 31.6734, and for 8th-generation dentine bonding agent was 34.74431. The highest tensile bond strength was seen in 8th generation bonding agent compared to 6th and 7th generation bonding agents. Conclusion: From the present study it can be conclude that 8th generation dentine adhesive (Futura DC, Voco, Germany) resulted in highest tensile bond strength compared to 6th (Adper SE plus, 3M ESPE) and 7th generation (G-Bond) dentin bonding agents. PMID:26028901

  7. Why are urban Indian 6th graders using more tobacco than 8th graders? Findings from Project MYTRI

    PubMed Central

    Stigler, M H; Perry, C L; Arora, M

    2006-01-01

    Objective To investigate why urban Indian 6th graders may be using more tobacco than urban Indian 8th graders. Design Cross‐sectional survey of students conducted in the summer of 2004, as the baseline evaluation tool for a group‐randomised tobacco prevention intervention trial (Project MYTRI). Mixed‐effects regression models were used to (1) examine the relationship between 15 psychosocial risk factors and current use of any tobacco, by grade; and (2) examine differences in psychosocial risk factors, by grade. Setting Thirty‐two private (high socioeconomic status (SES)) and government (low‐mid SES) schools in two large cities in India (Delhi and Chennai). Subjects Students in the 6th and 8th grade in these schools (n  =  11642). Among these, 50.6% resided in Delhi (v Chennai), 61.4% attended a government school (v a private school), 52.9% were enrolled in 6th grade (v 8th), and 54.9% were male (v female). Main outcome measure Current (past 30 day) use of any tobacco, including chewing tobacco (for example, gutkha), bidis, or cigarettes. Result Almost all psychosocial factors were significantly related to tobacco use, for students in both grades. Some of the strongest correlates included social susceptibility to and social norms about use. Exposure to tobacco advertising was a strong correlate of tobacco use for 6th graders, but not for 8th graders. Sixth graders scored lower than 8th graders on almost all factors, indicating higher risk. Conclusions The “risk profile” of 6th graders suggests they would be vulnerable to use and to begin using tobacco, as well as to outside influences that may encourage use. PMID:16723678

  8. Specialty Engineering Supplement to IEEE-15288.1

    DTIC Science & Technology

    2015-05-15

    MISSILE SYSTEMS CENTER TAILORING SPECIALTY ENGINEERING SUPPLEMENT TO IEEE -15288.1 APPROVED FOR PUBLIC RELEASE; DISTRIBUTION...IS UNLIMITED 1 Tailoring of IEEE 15288.1: Specialty Engineering Supplement. 1. Intent of this Tailoring Document This tailoring document is...historically deemed valuable to mission assurance/success of high-reliability space systems. This tailoring document supplements IEEE 15288.1-2015 Annex E

  9. Work of IEEE P1157 Medical Data Interchange committee.

    PubMed

    Rutt, T E

    1989-01-01

    The Institute of Electrical and Electronics Engineers (IEEE) has been working for several years to develop medical system communication standards, under sponsorship of the Engineering in Medicine and Biology Society (EMBS). The work of the IEEE P1157 Medical Data Interchange committee is surveyed in this paper. By 1990 the IEEE P1157 Medical Data Interchange committee plans to have a draft standard ready for ballot, with an initial focus on the interface transactions needed to support a patient care information system. Eventually, the IEEE P1157 Medical Data Interchange committee will develop standards with a wider scope, including the transfer of electronic medical records between different vendor systems.

  10. International Symposium on Electrets (ISE 6) (6th) Held in Oxford, England on 1-3 September 1988

    DTIC Science & Technology

    1988-09-01

    235U electroplated onto a copper disk and installed in a thermal neutron pile. RESULTS Electron-beam charged electrets, exposed to fission fragments...coating on a well polished copper substrate. The rotation fre- quency of 1250 rpm resulted in a film thickness of about 100 nm. Afterwar&d the samples...about 500 C the large intercallated molecular moieties transform to metal oxide pillars propping apart the silicate layers [I] (Fig. 1). The resulting

  11. International Conference on Numerical Ship Hydrodynamics (6th), Held in Iowa City, Iowa on 2-5 August 1993,

    DTIC Science & Technology

    1994-01-01

    no R. Ing Sixth Interntiona .. C a *c on -I-1.!6V Numric Ifl fMa do Thip Hd0ZiYHOM:3 :-- 2-5Augustz 1993 19941207 095 THE UNIVERSITY OF IOWA 30...the National Research Council. In keeping with the tradition of the previous conferences, the papers covered a wide range of topics and numerical... a distinguished colleague, Professor Louis Landweber. His many contributions to the field of ship hydrodynamics, through research, education and

  12. International Congress on Experimental Mechanics, 6th, Portland, OR, June 6-10, 1988, Proceedings. Volumes 1 2

    SciTech Connect

    Not Available

    1988-01-01

    The present conference on experimental mechanics discusses topics in the fields of structural testing methods, such optical characterization methods for mechanics as moire and caustics, materials-testing methods, the determination of fracture parameters, nonlinear test methods, composite mechanics characterizations, medical and sports biomechanics, shearographic and interferometric methods, strain gage techniques, residual stress phenomena, photoelasticity techniques, thermoelastic emissions, and the integration of PC hardware with experimental mechanics test apparatus. Also treated are short-crack phenomena, mechanics image processing methods, the time-dependent properties of composites, experimental mechanics in high-temperature environments, hybrid methods in experimental mechanics, the relationship of fatigue phenomena to dynamics, industrial applications of photoelasticity, speckle metrology, and the nature of dynamic systems.

  13. Proceedings of the International Cryocoolers Conference (6th) Held in Plymouth, Massachusetts on October 25-26, 1990. Volume 2

    DTIC Science & Technology

    1991-01-01

    Highlights," Phase Transitions, vol. 24-26, 3 (1990). 5. Gang Xiao, S.H. Liou , A. Levy, J.N. Taylor, and C.L. Chien, "Magnetic relaxation in Fe-(Si0 2...heat generation from sensors and heat leakage from Dewars have recently become greater than the cooling capacity of passive radiators. The JERS ...Japanese earth resources satellite)-l project was started in 1984 and is presently on-going.’) JERS -1 is the largest satellite in Japan and weighs 1,400 kg

  14. Summary of major conclusions from the 6th International Workshop on Genotoxicity Testing (IWGT), Foz do Iguacu, Brazil

    EPA Science Inventory

    The paper describes major conclusions of working groups convened in the following areas: comet assay; micronucleus test in the liver and organs other than bone marrow; pig-A assay; quantitative approaches to genotoxicity risk assessment; and approaches for identifying germ cell m...

  15. International Conference on Low Temperature Chemistry (6th) Held in Chernogolovka, Russia on 27 August - 1 September 2006

    DTIC Science & Technology

    2006-09-20

    The stabilized free radicals FC60 (or FC70) were generated in sold argon by means of chemical reaction of the photogenerated fluorine atoms with...strong electrophile . Using quantum chemistry methods stability and structure of homoleptic Xe-containing molecules XeM2 and MXen with transition metal...apart from the main CH...F interaction, secondary interactions are present in which the fluorine of the chlorine atoms located in the haloform

  16. Protective Bars? Report on the EPEA International Conference on Prison Education (6th, Budapest, Hungary, November 1-5, 1997).

    ERIC Educational Resources Information Center

    Boros, Janos, Ed.

    This document contains 16 papers on practices in correctional education in Central and Eastern Europe, presented at a conference in Hungary in 1997. The papers center around these four topics: (1) Prison System and Humanization; (2) New Challenges in Prison Life and Prison Education; (3) Nothing Works? Something Works; and (4) Beyond 2000. The…

  17. Discovering Creativity. Proceedings of the International Creativity & Innovation Networking Conference (6th, Greensboro, North Carolina, September 1992).

    ERIC Educational Resources Information Center

    Gryskiewicz, Stanley S., Ed.

    The conference proceedings contain the following papers: "Hard Organizational Development" (Anthony); "Positive Impact of Humor in the Workplace or TQM (Total Quality Mirth) in Organizations" (Collier); "Introducing the Integrated Programme for the Creative Training of Leaders" (Diaz-Carrera); "Vision of Quality versus the Quality Vision" (Green);…

  18. 6th International Conference on Malignancies in AIDS and Other Acquired Immunodeficiencies: Basic,Epidemiologic and Clinical Research

    Cancer.gov

    Summary of speakers and events from the 2002 ICMAOI conference, focused on presenting basic, epidemiologic, and clinical aspects of research on malignancies in HIV-infected and other immunosuppressed individuals.

  19. Summary of major conclusions from the 6th International Workshop on Genotoxicity Testing (IWGT), Foz do Iguacu, Brazil

    EPA Science Inventory

    The paper describes major conclusions of working groups convened in the following areas: comet assay; micronucleus test in the liver and organs other than bone marrow; pig-A assay; quantitative approaches to genotoxicity risk assessment; and approaches for identifying germ cell m...

  20. Discovering Creativity. Proceedings of the International Creativity & Innovation Networking Conference (6th, Greensboro, North Carolina, September 1992).

    ERIC Educational Resources Information Center

    Gryskiewicz, Stanley S., Ed.

    The conference proceedings contain the following papers: "Hard Organizational Development" (Anthony); "Positive Impact of Humor in the Workplace or TQM (Total Quality Mirth) in Organizations" (Collier); "Introducing the Integrated Programme for the Creative Training of Leaders" (Diaz-Carrera); "Vision of Quality versus the Quality Vision" (Green);…

  1. Proceedings of the International Symposium on Detonation (6th) Held at Coronado, California on 24-27 August 1976

    DTIC Science & Technology

    1976-08-01

    2, 2-dinitroethyl) acetal C6 118 F20dN4 NSWC FDE 1, 1 , 4-trifluoro-I, 4, 4-trinitro- 3 - oxobutane C3 I-12 F73 07 N3 NSWC EDEE 1, 5-difluoro-1, 1, 5, 5...4-totrafluoro-4, 4-dinitro- 3 - oxobutane C3 1-H2 1F4 05 N2 NSWC GBFO I1,1 2-difluoro-l, 1, 12,1 2-tetranitro- 3 , 5, 8, 10- C8 H-12 F2 012 N4...4-dinitro-2- oxobutane C3 1-2 F4 05 N2 SRi_____ 467 TABLE 1 Designator Identification - Continued SRI- 3 1, 1, 1-trifluoro-4, 4-dinitro-2-oxopentane

  2. Proceedings of the International Conference on Educational Data Mining (EDM) (6th, Memphis, TN., USA, July 6-9, 2013)

    ERIC Educational Resources Information Center

    D'Mello, S. K., Ed.; Calvo, R. A., Ed.; Olney, A., Ed.

    2013-01-01

    Since its inception in 2008, the Educational Data Mining (EDM) conference series has featured some of the most innovative and fascinating basic and applied research centered on data mining, education, and learning technologies. This tradition of exemplary interdisciplinary research has been kept alive in 2013 as evident through an imaginative,…

  3. Proceedings of the International Pyrotechnics Seminar (6th) Held at Estes Park, Colorado, 17-21 July 1978

    DTIC Science & Technology

    1978-06-01

    Palladium/ Aluminum Powders," Sandia Laboratories, Albuquerque; Livermore ......................................... 11 M.R. Birnbaum, "Determination of Pd...Rittenhouse and R.D. Smith, "Evaluation of a Hot Wire Sensitive Aluminum /Potassium Perchlorate Pyrotechnic," U~nidynamics...of M aterial Testing. Berlin ................................................ 599 A.J. Tulis, "Detonation of Unconfined Aluminum Particlcý, Dispersed

  4. The Efficiency of Cluster Method in Improving the Creative Writing Skill of 6th Grade Students of Primary School

    ERIC Educational Resources Information Center

    Sahbaz, Namik Kemal; Duran, Gozde

    2011-01-01

    The aim of this research is to search the effect of the cluster method on the creative writing skill of 6th grade students. In this paper, the students of 6-A, studying at Ulas Primary School in 2010-2011 academic year, were divided into two groups as experiment and control. Taking into consideration the various variants, pre-test and last-test…

  5. The Efficiency of Cluster Method in Improving the Creative Writing Skill of 6th Grade Students of Primary School

    ERIC Educational Resources Information Center

    Sahbaz, Namik Kemal; Duran, Gozde

    2011-01-01

    The aim of this research is to search the effect of the cluster method on the creative writing skill of 6th grade students. In this paper, the students of 6-A, studying at Ulas Primary School in 2010-2011 academic year, were divided into two groups as experiment and control. Taking into consideration the various variants, pre-test and last-test…

  6. [Anniversary of FSI "The 6th Central Military Clinical Hospital of the Ministry of Defense of Russian Federation"].

    PubMed

    Budko, A A; Ovechkin, I G

    2009-08-01

    The 6th Central Military Clinical Hospital of the Ministry of Defense of Russian Federation celebrates the 20th anniversary in September of 2009. The hospital is one of the greatest and well-known in the world specialized science-practical rehabilitation centers, equipped by original and unique methods, based on modern knowledge-intensive technologies. It permits resolve the most difficult tasks of reconstructive treatment of military service men of Russian Army.

  7. IEEE 1547 Standards Advancing Grid Modernization

    SciTech Connect

    Basso, Thomas; Chakraborty, Sudipta; Hoke, Andy; Coddington, Michael

    2015-06-14

    Technology advances including development of advanced distributed energy resources (DER) and grid-integrated operations and controls functionalities have surpassed the requirements in current standards and codes for DER interconnection with the distribution grid. The full revision of IEEE Standards 1547 (requirements for DER-grid interconnection and interoperability) and 1547.1 (test procedures for conformance to 1547) are establishing requirements and best practices for state-of-the-art DER including variable renewable energy sources. The revised standards will also address challenges associated with interoperability and transmission-level effects, in addition to strictly addressing the distribution grid needs. This paper provides the status and future direction of the ongoing development focus for the 1547 standards.

  8. IEEE 802.11 ECG monitoring system.

    PubMed

    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.

  9. Possible role of nitric oxide in the protective effect of resveratrol in 5/6th nephrectomized rats.

    PubMed

    Chander, Vikas; Chopra, Kanwaljit

    2006-06-15

    Nitric oxide (NO) plays an important role in the modulation of glomerular disease. The renal protective effect of resveratrol (RVT), a polyphenolic phytoalexin, was investigated in the 5/6th nephrectomized rats. Resveratrol (5 mg/kg, PO) was administered for 12 weeks to 5/6th nephrectomized (NX) rats together with and without nitro L-arginine methyl ester (L-NAME) (10 mg/kg, IP). We evaluated the effect of these agents on proteinuria, hypertension, renal function, glomerulosclerosis, and urinary excretion of nitric oxide metabolites. 5/6th NX resulted in elevation in systolic blood pressure (SBP), reduced the urinary excretion of NO metabolites, increased urinary protein excretion, and deranged renal function and glomerulosclerosis. Treatment of animals with resveratrol significantly attenuated the increase in SBP, preserved the normal renal function, reduced the urinary protein excretion, increased the urinary excretion of NO metabolites, and prevented the glomerulosclerosis. Co-administration of animals with L-NAME along with resveratrol prevented the protection observed with resveratrol. These findings indicate that resveratrol exerts its protective effect in 5/6 NX rats through a nitric oxide pathway.

  10. TRADOC Library and Information Network (TRALINET). Union List of Periodicals (TULIP) (6th Edition)

    DTIC Science & Technology

    1993-12-01

    OF CLINICAL AND EXPERIMEqTAL HYPNOSIS TTZ [0020-7144] paper 1980+ INTERNATIONAL JOURNAL OF COMPARATIVE & APPLIED CRIMINAL JUSTICE TTB [0192-4036] fiche...1977-Dec 1981, Mar 1982-Dec 1988. TTK paper 1986+ JOURNAL OF FORENSIC SCIENCES TTB (0022-1198] paper v. 18, 1973-v. 31, 1986. fiche v. 21, 1976+ TTZ

  11. Sine-Fitting Software for IEEE Standard 1057

    SciTech Connect

    Blair, Jerome

    1999-05-01

    Software application that performs the calculations related to the sine-fit tests of IEEE Standard 1057/94. Example outputs and explainations of these outputs to determine the important characteristics of the device under test. This application performs the calculations related to sine-fit tests and uses 4-parameter sine fit from IEEE Standard 1057-1994.

  12. IEEE Standard Dictionary of Electrical and Electronics Terms.

    ERIC Educational Resources Information Center

    Institute of Electrical and Electronics Engineers, Inc., New York, NY.

    This dictionary, prepared by the Institute of Electrical and Electronics Engineers, Inc. (IEEE), defines 13,000 technical words from every area of electrical and electronics engineering. The dictionary contains hundreds of new terms as well as revisions of earlier ones. Each definition is an official standard of IEEE. The definitions are arranged…

  13. IEEE Standard Dictionary of Electrical and Electronics Terms.

    ERIC Educational Resources Information Center

    Institute of Electrical and Electronics Engineers, Inc., New York, NY.

    This dictionary, prepared by the Institute of Electrical and Electronics Engineers, Inc. (IEEE), defines 13,000 technical words from every area of electrical and electronics engineering. The dictionary contains hundreds of new terms as well as revisions of earlier ones. Each definition is an official standard of IEEE. The definitions are arranged…

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

    DTIC Science & Technology

    2016-08-22

    publication criteria of IEEE. 14 Lessons Learned : 1. From statistic of paper submissions amount and the acceptance ratio , the results indicate that Italy...be provided (line i minus j) I NT$ 0 Prog ram Income: I. Total Federal program income earned 0 m. Program income expended in accordance with the...deduction alternative 0 n. Program income expended in accordance with the addition alternative n o. Unexpended p·ogram income (line I minus line m or

  15. Comparison of staging between the old (6th edition) and new (7th edition) TNM classifications in advanced gastric cancer.

    PubMed

    Kikuchi, Shiro; Futawatari, Nobue; Sakuramoto, Shinichi; Katada, Natsuya; Yamashita, Keishi; Shibata, Tomotaka; Nemoto, Masayuki; Watanabe, Masahiko

    2011-06-01

    The aims of the present study were to compare staging between the old (6th edition) and new (7th edition) TNM classifications, and to evaluate the prognostic impact of extended lymph node dissection according to the new nodal staging in advanced gastric cancer. A total of 609 patients with advanced gastric cancer who had undergone curative gastric resection combined with extended lymph node dissection were enrolled in the present study. Survival curves were analyzed according to staging based on the TNM 6th and 7th editions and the Japanese Classification of Gastric Carcinoma (JCGC) 14th edition. The 5-year survival rates and the consecutive stage survival with no significant differences were: IB 88%; II 74%; IIIA 53%; IIIB 39%; and IV 18% (IIIA vs. IIIB, p=0.1307) by the TNM 6th edition; IB 94%; IIA 85%; IIB 71%; IIIA 68%; IIIB 48%; IIIC 23%; and IV 13%; (IIB vs. IIIA, p=0.7665; IIIC vs. IV, p=0.4156) by the TNM 7th and JCGC 14th editions; N0 85%; N1 70%; N2 46%; N3 18%; and M1 13%; (N3 vs. M1, p=0.8640) by the TNM 6th edition; and N0 85%; N1 80%; N2 61%; N3a 46%; N3b 18%; and M1 13%; (N0 vs. N1, p=0.2735; N2 vs. N3a, p=0.0663; N3b vs. M1, p=0.8640) by the TNM 7th and JCGC 14th editions. The new classification according to the TNM 7th and the JCGC 14th editions does not always seem to be superior to the TNM 6th edition for the prognostic stratification of stages in patients who undergo curative resection for advanced gastric cancer. An extended lymph node dissection may be effective for N0-N3a, but not for N3b and M1 stages classified according to the new TNM 7th and JCGC 14th editions.

  16. 1999 IEEE international conference on robotics and automation

    SciTech Connect

    1999-07-01

    Topics covered in this conference include: biped robots; underwater vehicles; robot planning and programming for assembly; discrete event control of mobile robot maneuvering; navigation in unknown environment; biped robots; underwater vehicles; robot planning and programming for assembly; discrete event control of manufacturing systems; motion planning; robot control; actuator; teleoperation; force and position control; contact and grasping control; visual servo control; tactile sensing; mobile robots and applications; sensor-based navigation; underwater robotics; sensing, navigation and control; flexible manipulators; task scheduling; actuators and joint actuation; teleoperation; sensor-based teleoperation; contact geometry; sonar-based sensing; mobile robot-environment interaction; mobile robot motion planning; biology-inspired methods; service and underwater robots; manufacturing planning and scheduling; constraint and nonholonomic system; fault-tolerant robots; parallel manipulators; dexterous manipulation; computer vision in manufacturing; contact sensing; mobile robot field applications; flexible robots; fuzzy control; and more.

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

    NASA Astrophysics Data System (ADS)

    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.

  18. Technical Report on the 6th Time Scale Algorithm Symposium and Tutorials

    DTIC Science & Technology

    2016-03-29

    Algorithms for the international time scales UTC and UTCr, Dr. Panfilo, BIPM 11:30-11:50 Tea/ coffee break 11:50-12:35 National Time Scales, Dr...NRL 16:00-16:20 Tea/ Coffee Break 16:20-17:05 Algorithms for GNSS Time Transfer, Dr. Defraigne, ORB 17:05-17:50 Algorithms to support time...de Carvalho, ONRJ, Brazil) 10:50 11:10 Algorithms for UTC(NIM) realization (Yuan Gao, NIM, China) 11:10 - 11:30 Tea I coffee break 11:30 1i:5o

  19. Biological determinants of photobioreactor design. 6th Quarterly report, October 1994--December 1994

    SciTech Connect

    Palsson, B.O.; Brown, G.G.

    1995-03-01

    A novel photobioreactor (PBR) system using light-emitting diodes (LEDs) as a sole light source was constructed and operated with continuous medium perfusion. Direct internal illumination by 680 nm LEDs could deliver as high as 50 mW/cm{sup 2} of light into the culture medium. Gas transfer by internal sparging had the capacity to transfer 250 mmol O{sub 2}/L culture/h. Nutritional limitations could be overcome by continuous perfusion, supplying the medium components to the culture without increasing osmolarity, while removing potentially inhibitory cellular wastes. When the PBR operated in a continuous perfusion mode with a perfusion rate of 6 reactor volumes a day (6 VVD), it could support ultra high-density algal cultures up to cell concentrations of 4{center_dot}10{sup 9} cells/mL and total cell volume fractions of 9.4% v/v (about 25 g dry weight/L). The oxygen production rate at its peak was 13 to 15 mmol/L culture/h. This performance represents the highest reported cell densities attained in photoautotrophic cultures. Continuous perfusion allowed for long-term stable oxygen production, while oxygen production in batch mode ceased when stationary phase was reached. The results presented suggest that PBR technology can still be significantly improved.

  20. Childbirth in the Greek island of Chois in the 6th century B.C., 1780, and 1914.

    PubMed

    Argenti, P

    1944-01-01

    Terracottas from the 6th century B.C.; a description of a delivery written in 1780; and a description of a labor chair used until 1914 give an historical picture of childbirth on the Greek island of Chios. The terracottas establish the fact that women were delivered in an upright perpendicular position in classical times. The upright labor chair seems to have continued in use until 1914. Midwives have historically at deliveries. In Chios, doctors seem to have taken over from midwives only around 1914.

  1. Wood - An Innovative Component of High-tech Products? 6th Wädenswil Day of Chemistry 2014.

    PubMed

    Heinzelmann, Elsbeth

    2014-10-01

    Wood is a multifunctional renewable material that could replace oil-based and other non-renewable resources in many applications. In the Swiss National Science Foundation project NFP 66, entitled 'Wood as a resource', researchers are attempting to find ways to use wood more efficiently in the future. The 6th Wädenswil Day of Chemistry, which was organised by the Institute of Chemistry and Biological Chemistry at Zurich University of Applied Sciences in Wädenswil, gave an overview of the innovative activities currently being undertaken in this field.

  2. What predicts the selection of nursing as a career choice in 5th and 6th year school students?

    PubMed

    Neilson, Gavin R; Jones, Martyn C

    2012-07-01

    Demand for nursing care, and nurses, is growing in the United Kingdom given an increasingly ageing patient population with long-term co-morbidities. An ageing nursing workforce and fewer school leavers entering nursing are key barriers to student nurse recruitment. This paper aims to identify the socio-demographic and correlates nursing as a career choice in 5th and 6th year school students. This cross-sectional descriptive study gathered self-administered questionnaires from a total cohort of 5th and 6th year school students (n=1059) in one educational authority in Scotland. A response rate of 100% was achieved, with 702 students expressing a career choice. Some 71.7% (n=503) of students providing a full data set would never consider nursing, even if they obtained poor grades. Only 28.3% (n=199) would ever consider nursing. Students cited nursing as a career choice if they were female, of average to below average academic ability/achievement, expressed a positive attitude to nursing as a degree subject which was shared by their career guidance teacher. Each additional higher reduced the likelihood of nursing as a career choice by 22%. Nursing is an unpopular career choice amongst school students. Strategies are required to improve the occupational image of nursing in secondary education. Copyright © 2011 Elsevier Ltd. All rights reserved.

  3. Effect of an intervention program on the reading comprehension processes and strategies in 5th and 6th grade students.

    PubMed

    Gayo, Elena; Deaño, Manuel; Conde, Ángeles; Ribeiro, Iolanda; Cadime, Irene; Alfonso, Sonia

    2014-01-01

    Various investigations have revealed that the promotion of cognitive and metacognitive strategies can improve reading comprehension and that when readers receive this type of instruction, they can use monitoring processes and regulation strategies adequately. The goal of this work is to analyze the effects of strategic and metacognitive instruction on reading comprehension processes and strategies, using the "Aprender a Comprender" [Learning to Understand] program. Instruction was carried out in the classroom by two teachers during six months. Ninety-four students participated, 49 from 5th grade and 45 from 6th grade. A pretest-intervention-posttest-follow-up design was used with a comparison group by grade. The analysis of variance shows an impact of the intervention and its differential maintenance in each grade. The 5th-grade intervention group scored higher than the comparison group in the reading comprehension test, both at posttest and at follow-up. The 6th-grade intervention group scored higher than the comparison group in the Planning scale, both at posttest and at follow-up. Textual strategy instruction favors reading comprehension and the progressive development of planning, which is necessary for supervision and regulation, and its effects are maintained over time.

  4. Substance use and youth violence. A study among 6th to 10th grade Israeli school children.

    PubMed

    Molcho, Michal; Harel, Yossi; Dina, Lache O

    2004-01-01

    This study examined the co-morbidity of substance use and violence among a representative sample of 8,394 6th-10th grade Israeli students. A representative national self report sample of 8,394 students in 6th through 10th grade. Measures included smoking, alcohol consumption, and illicit drug use, predicting involvement in bullying, injury during a fight and weapon-carrying in the past 30 days. We found across all grades, genders and ethnicities, daily smoking, use of hard drugs, history of drunkenness and binge drinking were the best predictors of violent behavior. Involvement in such behaviors put girls in higher risk for violent behaviors compared with boys. We concluded that use of substances immensely increased the odds of involvement in violent behavior, and this association was extremely strong for Arab girls. The study suggested that although girls were less frequently involved in substance use, the girls who did were at much higher risk for involvement in youth violence.

  5. Is the onset of the 6th century 'dark age' in Maya history related to explosive volcanism?

    NASA Astrophysics Data System (ADS)

    Nooren, Kees; Hoek, Wim Z.; Van der Plicht, Hans; Sigl, Michael; Galop, Didier; Torrescano-Valle, Nuria; Islebe, Gerald; Huizinga, Annika; Winkels, Tim; Middelkoop, Hans; Van Bergen, Manfred

    2016-04-01

    Maya societies in Southern Mexico, Guatemala and Belize experienced a 'dark age' during the second half of the 6th century. This period, also known as the 'Maya Hiatus', is characterized by cultural downturn, political instability and abandonment of many sites in the Central Maya Lowlands. Many theories have been postulated to explain the occurrence of this 'dark age' in Maya history. A possible key role of a large volcanic eruption in the onset of this 'dark age' will be discussed. Volcanic deposits recovered from the sedimentary archive of lake Tuspán and the Usumacinta-Grijalva delta were studied in detail and the combination of multiple dating techniques allowed the reconstruction of the timing of a large 6th century eruption. Volcanic glass shards were fingerprinted to indicate the source volcano and high resolution pollen records were constructed to indicate the environmental impact of the eruption. Results are compared with available archaeological data and causality with the disruption of Maya civilization will be evaluated.

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

    PubMed Central

    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

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

    PubMed

    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.

  8. Ada Compiler Validation Summary Report: Certificate Number: 910502S1. 11159 DDC International A/S DACS Sun-3/SunOS to 68030 Bare Ada Cross Compiler System, Version 4.6.4, MRI IEEE 695 (BASIC-MODE) Sun-3/50 = Motorola MVME143 Board (68030/68882).

    DTIC Science & Technology

    1991-07-24

    68030 Bare Ada Cross Compiler System, Version 4.6.4, MRI IEEE 695 (BASICMODE) Sun-3/50 => Motorola MVME143 Board (68030/68882) Prepared By: Software ...Information Sytems Manager, Software Standards Engineering Division (ISED) Validation Group Computer Systems Laboratory (CLS) National Institute of...Standards and Technology Building 225, Room A266 Gaithersburg, MD 20899 Ada V1P ion Organization Ada Joint Program Office Direct r,omputer & Software

  9. IR and py/GC/MS examination of amber relics excavated from 6th century royal tomb in Korean Peninsula

    NASA Astrophysics Data System (ADS)

    Park, Jongseo; Yun, Eunyoung; Kang, Hyungtae; Ahn, Jooyoung; Kim, Gyuho

    2016-08-01

    Relics of amber were excavated from King Muryeong's tomb constructed in the 6th century on the Korean peninsula. To estimate the provenance, FTIR (Fourier transform infrared spectroscopy) and py/GC/MS (pyrolysis/gas chromatography/mass spectrometry) analysis were utilized. The reference Baltic amber sample was also analyzed with the same method for comparison. The relics were confirmed to be amber from the FTIR analysis where an absorption band near 1150 cm- 1, characteristic one in Baltic amber, was also observed. In py/GC/MS analysis, pyrolyzed products like butanedioic acid and dehydroabietic acid, known constituents of amber, were observed. In addition, D-fenchyl alcohol, camphor, borneol and butanedioic acid, typical constituents of Baltic amber, were observed in some samples. From this, it appears that some of relics were made from Baltic amber and that Baltic amber was transported to the Korean peninsula in the time of tomb construction.

  10. 6th Annual Midwest Conference for Undergraduate Women in Physics, January 18-20, 2013, Urbana, Illinois

    SciTech Connect

    Pitts, Kevin T.

    2016-04-28

    This document is the program for the 6th Annual Midwest Conference for Undergraduate Women in Physics, which was held at the University of Illinois at Urbana-Champaign on January 18-20, 2013. The goals of the conference were to foster a culture in which undergraduate women are encouraged and supported to pursue, and also to succeed in, higher education in physics; to provide career information to students in physics and related fields; to give women the resources, motivation, and confidence to apply to graduate school and successfully complete a Ph.D. program in Physics; to provide information and dispel misconceptions about the application process for graduate school and the diverse employment opportunities in physics and related fields, enabling women to make more informed decisions about their goals and attain them; and to connect female physics students with successful female physicists to whom they can relate and who can act as inspirational role models and mentors.

  11. Publication of Proceedings for the 6th Workshop on High Energy Density and High Power RF (RF 2003)

    SciTech Connect

    Victor L. Granatstein

    2004-08-08

    The 6th Workshop on High Energy Density and High Power RF (RF 2003) was held from June 22 to June 26 at the Coolfont Resort and Conference Center in Berkeley Springs, West Virginia. The Workshop was hosted by the Institute for Research in Electronics and Applied Physics (IREAP) of the University of Maryland, College Park and by the Naval Research Laboratory, Washington DC. As its name implies this was the sixth in a series of biennial workshops devoted to exchanging information and ideas on high power microwave sources and components. The applications addressed included particle accelerators, radar, HPM, space exploration, neutron sources and plasma heating and current driven in controlled thermonuclear fusion research. This Final Report includes a brief description of the RF 2003 Workshop and the distribution of the published proceedings.

  12. IEEE 342 Node Low Voltage Networked Test System

    SciTech Connect

    Schneider, Kevin P.; Phanivong, Phillippe K.; Lacroix, Jean-Sebastian

    2014-07-31

    The IEEE Distribution Test Feeders provide a benchmark for new algorithms to the distribution analyses community. The low voltage network test feeder represents a moderate size urban system that is unbalanced and highly networked. This is the first distribution test feeder developed by the IEEE that contains unbalanced networked components. The 342 node Low Voltage Networked Test System includes many elements that may be found in a networked system: multiple 13.2kV primary feeders, network protectors, a 120/208V grid network, and multiple 277/480V spot networks. This paper presents a brief review of the history of low voltage networks and how they evolved into the modern systems. This paper will then present a description of the 342 Node IEEE Low Voltage Network Test System and power flow results.

  13. Implicit Block ACK Scheme for IEEE 802.11 WLANs

    PubMed Central

    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.

  14. System Behavior Specification Using IEEE Std 1175.4

    DTIC Science & Technology

    2010-04-27

    22nd Annual Systems & Software Technology Conference S stem Beha ior Specification1 7 y v Using IEEE Std 1175.4 e v i e w 5 2 8 1 2 R 27 April...DATE 27 APR 2010 2. REPORT TYPE 3. DATES COVERED 00-00-2010 to 00-00-2010 4. TITLE AND SUBTITLE System Behavior Specification Using IEEE Std ...RESPONSIBLE PERSON a. REPORT unclassified b. ABSTRACT unclassified c. THIS PAGE unclassified Standard Form 298 (Rev. 8-98) Prescribed by ANSI Std

  15. IEEE 1547 Series of Standards: Interconnection Issues; Preprint

    SciTech Connect

    Basso, T.; DeBlasio, R.

    2003-09-01

    IEEE 1547TM 2003 Standard for Interconnecting Distributed Resources With Electric Power Systems is the first in the 1547 series of planned interconnection standards. Major issues and a wealth of constructive dialogue arose during 1547 development. There was also a perceived increased vitality in updating complementary IEEE standards and developing additional standards to accommodate modern electrical and electronics systems and improved grid communications and operations. Power engineers and other stakeholders looking to the future are poised to incorporate 1547 into their knowledge base to help transform our nation's aging distribution systems while alleviating some of the burden on existing transmission systems.

  16. Photometric and Spectroscopic Footprint Corrections in the Sloan Digital Sky Survey’s 6th Data Release

    NASA Astrophysics Data System (ADS)

    Specian, Mike A.; Szalay, Alex S.

    2016-04-01

    We identify and correct numerous errors within the photometric and spectroscopic footprints (SFs) of the Sloan Digital Sky Survey’s (SDSS) 6th data release (DR6). Within the SDSS’s boundaries hundreds of millions of objects have been detected. Yet we present evidence that the boundaries themselves contain a significant number of mistakes that are being revealed for the first time within this paper. Left unaddressed, these can introduce systematic biases into galaxy clustering statistics. Using the DR6 Main Galaxy Sample (MGS) targets as tracers, we reveal inconsistencies between the photometric and SF definitions provided in the Catalog Archive Server (CAS), and the measurements of targets therein. First, we find that 19.7 deg2 of the DR6 photometric footprint are devoid of MGS targets. In volumes of radii 7 {h}-1 {Mpc}, this can cause errors in the expected number of galaxies to exceed 60%. Second, we identify seven areas that were erroneously included or excluded from the SF. Moreover, the tiling algorithm that positioned spectroscopic fibers during and between DRs caused many areas along the edge of the SF to be significantly undersampled relative to the footprint’s interior. Through our corrections, we increase the completeness 2.2% by trimming 3.6% of the area from the existing SF. The sum total of these efforts has generated the most accurate description of the SDSS DR6 footprints ever created.

  17. A randomized controlled trial on the effects of yoga on stress reactivity in 6th grade students.

    PubMed

    Hagins, Marshall; Haden, Sara C; Daly, Leslie A

    2013-01-01

    There is an increasing interest in developing school programs that improve the ability of children to cope with psychosocial stress. Yoga may be an appropriate intervention as it has demonstrated improvements in the ability of children to manage psychosocial stress. Yoga is thought to improve the control of reactivity to stress via the regulation of the autonomic nervous system. The current study examined the effects of yoga compared to a physical education class on physiological response (blood pressure (BP) and heart rate (HR)) to behavioral stressor tasks (mental arithmetic and mirror tracing tasks). Data analysis of BP and HR was performed using a 2 × 2 × 4 repeated measures ANOVA (time × group × stressor time points). 30 (17 male) 6th graders participated in the study. Yoga did not provide significant differences in stress reactivity compared to a physical education class (group × time: systolic (F(1,28) = .538, P = .470); diastolic (F(1,28) = .1.061, P = .312); HR (F(1,28) = .401, P = .532)). The lack of significant differences may be due to the yoga intervention failing to focus on stress management and/or the stressor tasks not adequately capturing attenuation of stressor response.

  18. Yersinia pestis DNA from skeletal remains from the 6(th) century AD reveals insights into Justinianic Plague.

    PubMed

    Harbeck, Michaela; Seifert, Lisa; Hänsch, Stephanie; Wagner, David M; Birdsell, Dawn; Parise, Katy L; Wiechmann, Ingrid; Grupe, Gisela; Thomas, Astrid; Keim, Paul; Zöller, Lothar; Bramanti, Barbara; Riehm, Julia M; Scholz, Holger C

    2013-01-01

    Yersinia pestis, the etiologic agent of the disease plague, has been implicated in three historical pandemics. These include the third pandemic of the 19(th) and 20(th) centuries, during which plague was spread around the world, and the second pandemic of the 14(th)-17(th) centuries, which included the infamous epidemic known as the Black Death. Previous studies have confirmed that Y. pestis caused these two more recent pandemics. However, a highly spirited debate still continues as to whether Y. pestis caused the so-called Justinianic Plague of the 6(th)-8(th) centuries AD. By analyzing ancient DNA in two independent ancient DNA laboratories, we confirmed unambiguously the presence of Y. pestis DNA in human skeletal remains from an Early Medieval cemetery. In addition, we narrowed the phylogenetic position of the responsible strain down to major branch 0 on the Y. pestis phylogeny, specifically between nodes N03 and N05. Our findings confirm that Y. pestis was responsible for the Justinianic Plague, which should end the controversy regarding the etiology of this pandemic. The first genotype of a Y. pestis strain that caused the Late Antique plague provides important information about the history of the plague bacillus and suggests that the first pandemic also originated in Asia, similar to the other two plague pandemics.

  19. Bond Strength of 5th, 6th and 7th Generation Bonding Agents to Intracanal Dentin of Primary Teeth

    PubMed Central

    Afshar, Hossein; Baradaran Nakhjavani, Yahya; Rahro Taban, Sedighe; Baniameri, Zahra; Nahvi, Azam

    2015-01-01

    Objectives: This in-vitro study sought to assess the push-out bond strength of a total etch and 2 self-etch bonding systems to intracanal dentin of primary anterior teeth (PAT). Materials and Methods: Thirty-six primary anterior teeth were randomly divided into 3 groups of 5th generation (Single Bond 2), 6th generation (Clearfil SE) and 7th generation (Single Bond Universal) bonding agents. The canal orifice was restored with composite resin and the push-out test was carried out to assess the bond strength. After applying the push-out load, specimens were evaluated under a light microscope at 40X magnification. One-way ANOVA and log-rank test on Kaplan-Meier curves were applied for the comparison of bond strength among the 3 groups. Results: The mean± standard deviation (SD) bond strength was 13.6±5.33 MPa for Single Bond 2, 13.85±5.86 MPa for Clearfil SE and 12.28±5.24 MPa for Single Bond Universal. The differences in bond strength among the 3 groups were not statistically significant (P>0.05). Conclusion: All three bonding agents are recommended for use with composite posts in PAT. However, due to high technical sensitivity of the Total Etch system, single or two-step self etch systems may be preferred for uncooperative children. PMID:26056518

  20. Ethical, legal, and social aspects of farm animal cloning in the 6th Framework Programme for Research.

    PubMed

    Claxton, John; Sachez, Elena; Matthiessen-Guyader, Line

    2004-01-01

    Cloned livestock have potential importance in the provision of improved medicine as well as in the development of livestock production. The public is, however, increasingly concerned about the social and ethical consequences of these advances in knowledge and techniques. There is unevenness throughout Europe in different Member States' attitudes to research into livestock cloning. Although there is EU legislation controlling the use of animals for research purposes, there is no legislation specifically governing cloning in livestock production. The main EU reference is the 9th Opinion of the European Group on Ethics, which states "Cloning of farm animals may prove to be of medical and agricultural as well as economic benefit. It is acceptable only when the aims and methods are ethically justified and when carried out under ethical conditions." The ethical justification includes the avoidance of suffering, the use of the 3Rs principle and a lack of better alternatives. The Commission addresses these issues in the 6th Framework Programme by promoting the integration of ethical, legal and social aspects in all proposals where they are relevant, by fostering ethical awareness and foresight in the proposals, by encouraging public dialogue, and by supporting specific actions to promote the debate. Research must respect fundamental ethical principles, including animal welfare requirements.

  1. A commentary: the impact of the IEEE TRANSACTIONS ON REHABILITATION ENGINEERING on the field of rehabilitation engineering and science.

    PubMed

    Robinson, C J

    2000-12-01

    The IEEE TRANSACTIONS ON REHABILITATION ENGINEERING, founded 8.5 years ago, has survived, thrived, been of high quality, attracted the best authors in its field and related fields, been the publication of choice for manuscript submission in the rehabilitation engineering and related science area, possessed a wide and international distribution and loyal readership, been oft-cited, been financially sound, and made a marked impact on the field of Rehabilitation Engineering.

  2. Specialty and Systems Engineering Supplement to IEEE 15288.1

    DTIC Science & Technology

    2017-08-28

    SMC Tailoring SMC-T-006 28 August 2017 ------------------------ Supersedes: SMC-T-006 (2015) Air Force Space Command... SPACE AND MISSILE SYSTEMS CENTER TAILORING SPECIALTY AND SYSTEMS ENGINEERING SUPPLEMENT TO IEEE-15288.1 APPROVED FOR PUBLIC...is critical to high-reliability space systems for optimizing total system performance and total ownership costs, while ensuring that the system is

  3. Eleanor McElwee and the Formation of IEEE PCS

    ERIC Educational Resources Information Center

    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…

  4. Eleanor McElwee and the Formation of IEEE PCS

    ERIC Educational Resources Information Center

    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…

  5. Highlights from the 6th Annual University of Calgary Leaders in Medicine Research Symposium and the Keynote Address by Dr. Danuta Skowronski.

    PubMed

    Roberts, Jodie I; Beatty, Jennifer K; Peplowski, Michael A; Keough, Michael B; Yipp, Bryan G; Hollenberg, Morley D; Beck, Paul L

    2015-12-04

    The Leaders in Medicine (LIM) Program at the University of Calgary hosted its 6th Annual Research Symposium on November 14, 2014, showcasing the quality and breadth of work performed by students at the Cumming School of Medicine. Participation at this year's event was our most successful to date, with a total of six oral and 77 poster presentations during the afternoon symposium. For a detailed description of the work presented at the symposium, please see the Proceedings from the 6th Annual University of Calgary Leaders in Medicine Research Symposium published in this issue of Clinical and Investigative Medicine.

  6. Breakfast patterns among low-income, ethnically-diverse 4th-6th grade children in an urban area

    PubMed Central

    2014-01-01

    Background Increasing school breakfast participation has been advocated as a method to prevent childhood obesity. However, little is known about children’s breakfast patterns outside of school (e.g., home, corner store). Policies that increase school breakfast participation without an understanding of children’s breakfast habits outside of school may result in children consuming multiple breakfasts and may undermine efforts to prevent obesity. The aim of the current study was to describe morning food and drink consumption patterns among low-income, urban children and their associations with relative weight. Methods A cross-sectional analysis was conducted of data obtained from 651 4th-6th graders (51.7% female, 61.2% African American, 10.7 years) in 2012. Students completed surveys at school that included all foods eaten and their locations that morning. Height and weight were measured by trained research staff. Results On the day surveyed, 12.4% of youth reported not eating breakfast, 49.8% reported eating one breakfast, 25.5% reported eating two breakfasts, and 12.3% reported eating three or more breakfasts. The number of breakfasts consumed and BMI percentile showed a significant curvilinear relationship, with higher mean BMI percentiles observed among children who did not consume any breakfast and those who consumed ≥ 3 breakfasts. Sixth graders were significantly less likely to have consumed breakfast compared to younger children. A greater proportion of obese youth had no breakfast (18.0%) compared to healthy weight (10.1%) and overweight youth (10.7%, p = .01). Conclusions When promoting school breakfast, policies will need to be mindful of both over- and under-consumption to effectively address childhood obesity and food insecurity. Clinical trial registration NCT01924130 from http://clinicaltrials.gov/. PMID:24928474

  7. CfDS 2006: the 6th European Dark-Skies Symposium, Portsmouth, 2006 September 15-16

    NASA Astrophysics Data System (ADS)

    Mizon, R.

    2006-12-01

    The BAA's Campaign for Dark Skies took its turn in 2006 to stage the 6th European Dark-Skies Symposium, similar events having been held in previous years in Switzerland, Germany, France and Belgium. The event was the best attended to date, with more than 150 delegates from eleven European countries, the USA and even South Africa. Between sessions, delegates were given a tour of the night skies of the world in the South Downs Planetarium, where Dr John Mason simulated the effects of light pollution. This was followed by a visit to the Clanfield Observatory, courtesy of the Hampshire Astronomical Group, later in the evening, where the real night sky and a little real light pollution (!) were observed. The whole event was kindly sponsored by the BAA and Abacus Lighting Ltd. A principal aim of the two-day symposium was to advise planners and other decision-makers, and those who make, choose and install lighting, about the legal and moral issues surrounding light pollution. It is not, of course, the Campaign's intention to ban lighting, but to ensure that where outdoor lighting is required, it is designed and installed correctly, thereby causing little or no nuisance and reducing energy costs. These non-astronomical aspects were very much to the fore on the first day of the conference, which was opened by one of CfDS' best allies in Parliament, Lembit Opik MP. Mr Opik expressed his delight at seeing so many delegates, and confirmed his continuing support for the initiatives CfDS pursues within Parliament: for example its discussions with DEFRA on the subject of the proposed planning directive (PPS 23) on light pollution

  8. [The IASLC lung cancer staging project. Comparing the current 6(th) TNM edition with the proposed 7(th) edition].

    PubMed

    Carvalho, Lina; Cardoso, Edgar; Nunes, Henrique; Baptista, Victor; Gomes, Ana; Couceiro, Patrícia

    2009-01-01

    The future 7th edition of TNM classification for lung cancer will be published in 2009 and comprises the IASLC recommendations for TNM parameters. The general staging of lung cancer includes the new parameters: reclassification of tumours larger than 7 cm from T2 to T3; extra tumoral nodules will change their category to T3, T4 and M1 when in the same, ipsilateral or contralateral lobe, respectively; pleural effusion will be M1a. With these alterations, cases staged as IB - T2b N0 M0 will be IIA, cases staged IIB - T2a N1 M0 will be IIA and cases IIIB- T4 N0- -1 M0 will be IIIA. The 7(th) TNM edition recommendations were applied to 203 broncho -pulmonary carcinomas, concerning epidermoid carcinomas (83) and adenocarcinomas (120) registered in the archive of the Serviço de Anatomia Patológica of the Hospitais da Universidade de Coimbra - Portugal, previously submitted to surgical resection and lymph node excision. The following alterations will be kept as the application of the future 7(th) TNM edition: 20 cases in stage IB will move to stage IIA (17) and stage IIB (3); 18 cases will change from stage IIB to stage IIA (17) and 1 case to stage IIIA; 2 cases from stage IIIB will move to stage IV; 6 cases in stage IV will move to stage IIIA (5) and 1 case to stage IIIB. In this translational adaptation from 6th to 7th TNM staging, 51 out of the 203 analysed cases change their staging, corresponding to 25.1%.

  9. The preparatory phase of the April 6th 2009, Mw 6.3, L’Aquila earthquake: Seismological observations

    NASA Astrophysics Data System (ADS)

    Lucente, F. P.; de Gori, P.; Margheriti, L.; Piccinini, D.; Dibona, M.; Chiarabba, C.; Piana Agostinetti, N.

    2009-12-01

    Few decades ago, the dilatancy-diffusion hypothesis held great promise as a physical basis for developing earthquakes prediction techniques, but the potential never become reality, as the result of too few observations consistent with the theory. One of the main problems has been the lack of detailed monitoring records of small earthquakes swarms spatio-temporally close to the incoming major earthquakes. In fact, the recognition of dilatancy-related effects requires the use of very dense network of three-component seismographs, which, in turn, implies the a-priori knowledge of major earthquakes location, i.e., actually a paradox. The deterministic prediction of earthquakes remains a long time, hard task to accomplish. Nevertheless, for seismologists, the understanding of the processes that preside over the earthquakes nucleation and the mechanics of faulting represents a big step toward the ability to predict earthquakes. Here we describe a set of seismological observations done on the foreshock sequence that preceded the April 6th 2009, Mw 6.3, L’Aquila earthquake. In this occasion, the dense configuration of the seismic network in the area gave us the unique opportunity for a detailed reconstruction of the preparatory phase of the main shock. We show that measurable precursory effects, as changes of the seismic waves velocity and of the anisotropic parameters in the crust, occurred before the main shock. From our observations we infer that fluids play a key role in the fault failure process, and, most significantly, that the elastic properties of the rock volume surrounding the main shock nucleation area undergo a dramatic change about a week before the main shock occurrence.

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

    DTIC Science & Technology

    2014-06-30

    David Bull, and Joseph McGeehan. “A Comparison of the HIPERLAN/2 and IEEE 802.11a Wireless LAN Standards”, Communications Magazine , IEEE , vol. 40, no...RADIO FREQUENCY FINGERPRINTING TECHNIQUES THROUGH PREAMBLE MODIFICATION IN IEEE 802.11B THESIS Nicholas J. Kulesza, Captain, USAF AFIT–ENG–T–14–J–8...MODIFICATION IN IEEE 802.11B THESIS Presented to the Faculty Department of Electrical and Computer Engineering Graduate School of Engineering and Management

  11. Commanding and Controlling Satellite Clusters (IEEE Intelligent Systems, November/December 2000)

    DTIC Science & Technology

    2000-01-01

    the process of updating flight software and removes the complexity associated with software 8 IEEE INTELLIGENT SYSTEMS Commanding and controlling...experimental results. Data center customers range from mission planners and 12 IEEE INTELLIGENT SYSTEMS Figure 4. Ground station GUI. Satellite...following (for each satellite in the cluster): • relative position, • relative velocity, • absolute position, • absolute velocity, 10 IEEE INTELLIGENT

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

    ERIC Educational Resources Information Center

    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…

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

    ERIC Educational Resources Information Center

    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. The Hetu'u Global Network: Measuring the Distance to the Sun Using the June 5th/6th Transit of Venus

    ERIC Educational Resources Information Center

    Faherty, Jacqueline K.; Rodriguez, David R.; Miller, Scott T.

    2012-01-01

    In the spirit of historic astronomical endeavors, we invited school groups across the globe to collaborate in a solar distance measurement using the rare June 5/6th transit of Venus. In total, we recruited 19 school groups spread over 6 continents and 10 countries to participate in our Hetu'u Global Network. Applying the methods of French…

  15. The Hetu'u Global Network: Measuring the Distance to the Sun Using the June 5th/6th Transit of Venus

    ERIC Educational Resources Information Center

    Faherty, Jacqueline K.; Rodriguez, David R.; Miller, Scott T.

    2012-01-01

    In the spirit of historic astronomical endeavors, we invited school groups across the globe to collaborate in a solar distance measurement using the rare June 5/6th transit of Venus. In total, we recruited 19 school groups spread over 6 continents and 10 countries to participate in our Hetu'u Global Network. Applying the methods of French…

  16. The Effect of Listening Education Practices Organized by Active Learning Techniques on the Attitudes of 6th Grade Students towards Turkish Course

    ERIC Educational Resources Information Center

    Aytan, Talat

    2017-01-01

    In this study, it was aimed to determine the effect of listening education practices that organized by active learning techniques on the attitudes of 6th grade students towards Turkish course. The sample of the study conducted at a secondary school in the Black Sea region of Turkey consisted of twenty students--ten girls and ten boys. During…

  17. Trends in Substance Use among 6th-to 10th-Grade Students from 1998 to 2010: Findings from a National Probability Study

    ERIC Educational Resources Information Center

    Brooks-Russell, Ashley; Farhat, Tilda; Haynie, Denise; Simons-Morton, Bruce

    2014-01-01

    Of the handful of national studies tracking trends in adolescent substance use in the United States, only the Health Behavior in School-Aged Children (HBSC) study collects data from 6th through 10th graders. The purpose of this study was to examine trends from 1998 to 2010 (four time points) in the prevalence of tobacco, alcohol, and marijuana use…

  18. Trends in Substance Use among 6th-to 10th-Grade Students from 1998 to 2010: Findings from a National Probability Study

    ERIC Educational Resources Information Center

    Brooks-Russell, Ashley; Farhat, Tilda; Haynie, Denise; Simons-Morton, Bruce

    2014-01-01

    Of the handful of national studies tracking trends in adolescent substance use in the United States, only the Health Behavior in School-Aged Children (HBSC) study collects data from 6th through 10th graders. The purpose of this study was to examine trends from 1998 to 2010 (four time points) in the prevalence of tobacco, alcohol, and marijuana use…

  19. The Effect of the Van Hiele Model Based Instruction on the Creative Thinking Levels of 6th Grade Primary School Students

    ERIC Educational Resources Information Center

    Erdogan, Tolga; Akkaya, Recai; Celebi Akkaya, Sibel

    2009-01-01

    The aim of this study is to determine the effect of the Van Hiele model based instruction process on the creative thinking levels of 6th grade primary school students. Pre test-post test matching control group quasi-experimental design was used in the study. Fifty five students enrolled in sixth grades during the 2005-2006 educational year formed…

  20. Proceedings of the Office of Special Education Programs' Annual Technical Assistance and Dissemination Meeting (6th, Washington, DC, January 16-18, 1996).

    ERIC Educational Resources Information Center

    Special Education Programs (ED/OSERS), Washington, DC.

    This document presents the proceedings for the Office of Special Education Programs' 6th Annual Technical Assistance and Dissemination Meeting held on January 16-18, 1996, in Washington, DC. Conference discussions centered around changing expectations for local and state education agencies and technical assistance and dissemination (TA&D)…

  1. An IEEE 1451.1 Architecture for ISHM Applications

    NASA Technical Reports Server (NTRS)

    Morris, Jon A.; Turowski, Mark; Schmalzel, John L.; Figueroa, Jorge F.

    2007-01-01

    The IEEE 1451.1 Standard for a Smart Transducer Interface defines a common network information model for connecting and managing smart elements in control and data acquisition networks using network-capable application processors (NCAPs). The Standard is a network-neutral design model that is easily ported across operating systems and physical networks for implementing complex acquisition and control applications by simply plugging in the appropriate network level drivers. To simplify configuration and tracking of transducer and actuator details, the family of 1451 standards defines a Transducer Electronic Data Sheet (TEDS) that is associated with each physical element. The TEDS contains all of the pertinent information about the physical operations of a transducer (such as operating regions, calibration tables, and manufacturer information), which the NCAP uses to configure the system to support a specific transducer. The Integrated Systems Health Management (ISHM) group at NASA's John C. Stennis Space Center (SSC) has been developing an ISHM architecture that utilizes IEEE 1451.1 as the primary configuration and data acquisition mechanism for managing and collecting information from a network of distributed intelligent sensing elements. This work has involved collaboration with other NASA centers, universities and aerospace industries to develop IEEE 1451.1 compliant sensors and interfaces tailored to support health assessment of complex systems. This paper and presentation describe the development and implementation of an interface for the configuration, management and communication of data, information and knowledge generated by a distributed system of IEEE 1451.1 intelligent elements monitoring a rocket engine test system. In this context, an intelligent element is defined as one incorporating support for the IEEE 1451.x standards and additional ISHM functions. Our implementation supports real-time collection of both measurement data (raw ADC counts and

  2. Integration of physical activity and technology motion devices within a combined 5th and 6th grade science curriculum

    NASA Astrophysics Data System (ADS)

    Finn, Kevin Eugene

    Background: National recommendations to increase school-based physical activity and promote academic success advise incorporating movement into traditional classroom lessons. Classroom-based physical activities have favorable associations with indicators of cognitive functioning, academic behaviors, and academic achievement. Purpose: This study analyzed the Active Science framework, which incorporated school-based physical activity within interactive science classroom lessons. Specifically, the study measured the effects of the Active Science framework on student physical activity levels in the classroom, student learning of science inquiry skills and content knowledge, and student perceptions of physical activity and science. A secondary purpose was to evaluate the teachers' perceptions on the implementation of the framework. Subjects: Participants were 37 Hispanic girls (age=11.1 +/-0.8 yr) in mixed 5th/6th grade science classes in a private, urban middle school. Methods: Physical activity levels of the students during the Active Science framework were measured using pedometers and heart rate monitors. Pre- and post-tests were used to assess the levels of learning achieved by the students in science inquiry skills and content during the Active Science framework. Student perceptions and attitudes toward science and physical activity were measured during student focus groups and pre-post perception surveys. Lesson plan evaluations completed by the teachers and structured interviews provided data on implementation of the framework. Results: Physical activity results showed heart rate (146 +/-9 bpm); maximal heart rate (196 +/-10.6 bpm); time (35 +/-2.5 mins); steps (3050 +/-402.7); calories (99 +/-8.4 kcal); and distance (1.1 +/-0.2 miles) while performing the activity portion of the science lessons were consistent with national recommendations for accumulating school-based physical activity. Significant increases in science content and skills test scores with a 22

  3. Soma, food of the immortals according to the Bower Manuscript (Kashmir, 6th century A.D.).

    PubMed

    Leonti, Marco; Casu, Laura

    2014-08-08

    Food is medicine and vice versa. In Hindu and Ayurvedic medicine, and among human cultures of the Indian subcontinent in general, the perception of the food-medicine continuum is especially well established. The preparation of the exhilarating, gold-coloured Soma, Amrita or Ambrosia, the elixir and food of the 'immortals'-the Hindu pantheon-by the ancient Indo-Aryans, is described in the Rigveda in poetic hymns. Different theories regarding the botanical identity of Soma circulate, but no pharmacologically and historically convincing theory exists to date. We intend to contribute to the botanical, chemical and pharmacological characterisation of Soma through an analysis of two historical Amrita recipes recorded in the Bower Manuscript. The recipes are referred therein as panaceas (clarified butter) and also as a medicine to treat nervous diseases (oil), while no exhilarating properties are mentioned. Notwithstanding this, we hypothesise, that these recipes are related to the ca. 1800 years older Rigvedic Soma. We suppose that the psychoactive Soma ingredient(s) are among the components, possibly in smaller proportions, of the Amrita recipes preserved in the Bower Manuscript. The Bower Manuscript is a medical treatise recorded in the 6th century A.D. in Sanskrit on birch bark leaves, probably by Buddhist monks, and unearthed towards the end of the 19th century in Chinese Turkestan. We analysed two Amrita recipes from the Bower Manuscript, which was translated by Rudolf Hoernle into English during the early 20th century. A database search with the updated Latin binomials of the herbal ingredients was used to gather quantitative phytochemical and pharmacological information. Together, both Amrita recipes contain around 100 herbal ingredients. Psychoactive alkaloid containing species still important in Ayurvedic, Chinese and Thai medicine and mentioned in the recipe for 'Amrita-Prâsa clarified butter' and 'Amrita Oil' are: Tinospora cordifolia (Amrita, Guduchi), three

  4. Bone loss during partial weight bearing (1/6th gravity) is mitigated by resistance and aerobic exercise in mice

    NASA Astrophysics Data System (ADS)

    Boudreaux, R. D.; Metzger, C. E.; Macias, B. R.; Shirazi-Fard, Y.; Hogan, H. A.; Bloomfield, S. A.

    2014-06-01

    Astronauts on long duration missions continue to experience bone loss, as much as 1-2% each month, for up to 4.5 years after a mission. Mechanical loading of bone with exercise has been shown to increase bone formation, mass, and geometry. The aim of this study was to compare the efficacy of two exercise protocols during a period of reduced gravitational loading (1/6th body weight) in mice. Since muscle contractions via resistance exercise impart the largest physiological loads on the skeleton, we hypothesized that resistance training (via vertical tower climbing) would better protect against the deleterious musculoskeletal effects of reduced gravitational weight bearing when compared to endurance exercise (treadmill running). Young adult female BALB/cBYJ mice were randomly assigned to three groups: 1/6 g (G/6; n=6), 1/6 g with treadmill running (G/6+RUN; n=8), or 1/6 g with vertical tower climbing (G/6+CLB; n=9). Exercise was performed five times per week. Reduced weight bearing for 21 days was achieved through a novel harness suspension system. Treadmill velocity (12-20 m/min) and daily run time duration (32-51 min) increased incrementally throughout the study. Bone geometry and volumetric bone mineral density (vBMD) at proximal metaphysis and mid-diaphysis tibia were assessed by in vivo peripheral quantitative computed tomography (pQCT) on days 0 and 21 and standard dynamic histomorphometry was performed on undemineralized sections of the mid-diaphysis after tissue harvest. G/6 caused a significant decrease (P<0.001) in proximal tibia metaphysis total vBMD (-9.6%). These reductions of tibia metaphyseal vBMD in G/6 mice were mitigated in both G/6+RUN and G/6+CLB groups (P<0.05). After 21 days of G/6, we saw an absolute increase in tibia mid-diaphysis vBMD and in distal metaphysis femur vBMD in both G/6+RUN and G/6+CLB mice (P<0.05). Substantial increases in endocortical and periosteal mineralizing surface (MS/BS) at mid-diaphysis tibia in G/6+CLB demonstrate that

  5. Computer assisted instruction on "learning nutrition flags for deaf 5th grade and 6th grad students": effectiveness of instruction.

    PubMed

    Srisorachatr, Suwat; Huadong, Yotsinee; Hudthagosol, Chatrapa; Danthanavanich, Suksiri

    2013-12-01

    Deaf students are of a number of under privilege group for whom there are limited resources for their use, related to health including nutrition. The purpose of this research was to create computer-assisted instruction for "nutrition flags" for 5 and 6th grade students. The content of nutrition included the concept of a healthy balance diets and portion sizes of each food group. The content and pictures for computer-assisted instruction came from existing curriculum, and focused on nutritional content. The contents in this instruction were divided into three units according to students' learning capacity. The story boards were developed by staff including nutritionists, Thai sign language interpreters, and deaf students. Then, the contents and nutrition vocabulary were translated into Thai sign language. After recording the sign language on video, this material was merged with the contents and converted into a computer program. The computer assisted instruction was tested with students from Nakon Pathom School for the Deaf The first trial was conducted with three students, the second with five students, and the third with 15 students during the academic year 2009. The computer- assisted instruction was revised until it met the standard criteria of 80/80. Effectiveness testing was carried out with 36 students for five consecutive days. On the first day, the pre-test was completed, and on days 2-4, the students performed self-study and completed the exercises for units 1-3, with 50 minutes spent on each unit. The post-test was completed on the last day. The study was conducted during the 2010 academic year Data analysis was performed using the t-test. The results showed an effectiveness of 81.85/82.22, which was higher than the standard criteria of 80/80. The post-test average score was higher than the pre-test average score with a statistical significance level at p < 0.0001. Suggestions for instruction for the deaf are that the length of the instruction in each

  6. 2012 Special NSREC Issue of the IEEE Transactions on Nuclear Science Comments by the Editors

    NASA Astrophysics Data System (ADS)

    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

  7. Proceedings of the 1982 IPMAAC Conference on Public Personnel Assessment (6th, Minneapolis, Minnesota, June 6-10, 1982).

    ERIC Educational Resources Information Center

    International Personnel Management Association, Washington, DC.

    The International Personnel Management Association Assessment Council (IPMAAC) is a section of the International Personnel Management Association dedicated to the improvement of public personnel assessment in such fields as selection and performance evaluation. Author-generated summaries/outlines of papers presented at the IPMAAC's 1982 conference…

  8. IEEE P1547 Series of Standards for Interconnection: Preprint

    SciTech Connect

    Basso, T. S.; DeBlasio, R.

    2003-05-01

    The IEEE P1547 Standard For Interconnecting Distributed Resources With Electric Power Systems is the first in the P1547 series of planned interconnection standards, and additional standards are needed. There are major issues and obstacles to an orderly transition to the use and integration of distributed power resources with electric power systems (grid or utility grid). The lack of uniform national interconnection standards and tests for interconnection operation and certification-as well as the lack of uniform national building, electrical, and safety codes-is understood, and resolving this needs reasonable lead time to develop and promulgate consensus. The P1547 standard is a benchmark milestone for the IEEE standards consensus process and successfully demonstrates a model for ongoing success in the development of further national standards and for moving forward in modernizing our nation's electric power system.

  9. Computer aided coordination of line protection schemes IEEE committee report

    SciTech Connect

    Postforoosh, J.M.; Akamine, J.; Banerjee, H.N.; Cornelison, J.R.; Enns, M.K.; Grier, S.E.; Hass, R.W.; Hasenwinkle, I.O.; Johnson, R.W.; Mozina, C.J.; Ramaswami, R.; Smith, H.S.; Taylor, R.P.; Turley, J.R.; Zipp, J.A.

    1991-04-01

    IEEE PSRC working group on Computer Aided Coordination of Line Protection Schemes was established in 1985 to investigate the application of computers to the task of setting and verifying the setting of line protective devices. This report provides the findings of the working group regarding functional requirements of the data base, software, and hardware for this system as well as the methods of presenting the results to the protection engineer.

  10. Performance of IEEE 1588 in Large-Scale Networks

    DTIC Science & Technology

    2010-11-01

    commercially available Syn1588 network cards from Oregano Systems. They not only feature an IEEE 1588 hardware timestamper, but also a 1 PPS output...of the measurements, which are done per default once a second, can be removed considering the short-term stability of the oscillator. As the Oregano ...PTTI) Meeting 76 ACKNOWLEDGMENTS The authors wish to thank Julien Ridoux, the University of Melbourne, Oregano Systems, and Meinberg for

  11. International.

    ERIC Educational Resources Information Center

    Hoover, Linn

    1979-01-01

    The International Geological Correlation Project has attained scientific maturity and broad support and participation by geologists world wide. Its purpose is to provide a mechanism for international cooperation and information exchange about geological problems that transcend national boundaries. (Author/BB)

  12. Prognostic Discrepancy of the 6th and 7th UICC N Classification for Lymph Node Staging in Gastric Cancer Patients after Curative Resection

    PubMed Central

    Oh, Sung Jin; Suh, Byoung Jo; Park, Jong Kwon; Oh, Sung Don; Yu, Hang Jong

    2017-01-01

    Background The validity of N classification of the 7th edition of the American Joint Committee on Cancer/Union Internationale contre le Cancer (AJCC/UICC) tumor-node-metastasis (TNM) staging system is still under debate. The purpose of this study was to evaluate the prognostic efficacy of the 7th edition of the AJCC/UICC TNM staging system (focusing on N stage), in comparison with the 6th edition, at a single Eastern institution. Methods We analyzed 1,435 patients with gastric cancer who underwent curative resection performed from September 1998 to August 2003 at the Memorial Jin-Pok Kim Korea Gastric Cancer Center. We analyzed the survival rate of the patients according to the AJCC/UICC 6th and 7th editions, and compared each stage, focusing on N stage. Results Significant differences in the 5-year survival rates were observed between the 6th and the 7th AJCC/UICC staging system. In the 6th edition staging system, the Kaplan-Meier curves discriminated each N stage significantly. In contrast, there was no difference in terms of survival curves for N stage according to the 7th edition, especially between N1 and N2: the Kaplan-Meier plots of survival curves between N1 (77.0%) and N2 (78.1%) stages overlapped significantly (p < 0.05). Conclusion Although the 7th UICC staging system is a more detailed and sophisticated system in the T category, there was no prognostic significance between the pN1 and pN2 stages according to our data. Therefore, we suggest establishing a new UICC staging system taking into consideration the application of the N stage. PMID:28203165

  13. The Earth Microbiome Project: Meeting report of the “1st EMP meeting on sample selection and acquisition” at Argonne National Laboratory October 6th 2010.

    PubMed Central

    Gilbert, Jack A.; Meyer, Folker; Jansson, Janet; Gordon, Jeff; Pace, Norman; Tiedje, James; Ley, Ruth; Fierer, Noah; Field, Dawn; Kyrpides, Nikos; Glöckner, Frank-Oliver; Klenk, Hans-Peter; Wommack, K. Eric; Glass, Elizabeth; Docherty, Kathryn; Gallery, Rachel; Stevens, Rick; Knight, Rob

    2010-01-01

    This report details the outcome the first meeting of the Earth Microbiome Project to discuss sample selection and acquisition. The meeting, held at the Argonne National Laboratory on Wednesday October 6th 2010, focused on discussion of how to prioritize environmental samples for sequencing and metagenomic analysis as part of the global effort of the EMP to systematically determine the functional and phylogenetic diversity of microbial communities across the world. PMID:21304728

  14. Update on the U.S. Army TARDEC Power and Energy P&E SIL Program: Progress since the 6th AECV (June 2005 to Present)

    DTIC Science & Technology

    2007-06-01

    energy dissipaters were installed and the diagnostics and data acquisition system was upgraded. Since one of the two traction motor- dyno pairs was...ion system identical to one installed in HERMIT. New energy dissipaters were installed and the diagnostics and data acquisition system was upgraded...UPDATE ON THE U.S. ARMY TARDEC POWER AND ENERGY P&E SIL PROGRAM Progress since the 6th AECV (June 2005 to Present) Nancy Saxon*, Eugene

  15. IEEE/NASA Workshop on Leveraging Applications of Formal Methods, Verification, and Validation

    NASA Technical Reports Server (NTRS)

    Margaria, Tiziana (Editor); Steffen, Bernhard (Editor); Hichey, Michael G.

    2005-01-01

    This volume contains the Preliminary Proceedings of the 2005 IEEE ISoLA Workshop on Leveraging Applications of Formal Methods, Verification, and Validation, with a special track on the theme of Formal Methods in Human and Robotic Space Exploration. The workshop was held on 23-24 September 2005 at the Loyola College Graduate Center, Columbia, MD, USA. The idea behind the Workshop arose from the experience and feedback of ISoLA 2004, the 1st International Symposium on Leveraging Applications of Formal Methods held in Paphos (Cyprus) last October-November. ISoLA 2004 served the need of providing a forum for developers, users, and researchers to discuss issues related to the adoption and use of rigorous tools and methods for the specification, analysis, verification, certification, construction, test, and maintenance of systems from the point of view of their different application domains.

  16. Archeomagnetic Intensity Variations During the 6th Millennium BC in the Middle East: New Data from Yarim Tepe II (Northern Iraq)

    NASA Astrophysics Data System (ADS)

    Akimova, S.; Gallet, Y.; Amirov, S.

    2015-12-01

    During the seventies, Soviet archeologists conducted in Northern Iraq excavations of several ancient settlements dated from the Pottery Late Neolithic period (7th and 6th millennia BC). A very large collection of artifacts unearthed from these sites, in particular several thousands of well-documented pottery fragments, is now stored at the Archeological Institute in Moscow. We collected a time-sequential series of groups of potsherds from the multilayered settlement called Yarim Tepe II dated to the Halaf period (6th millennium BC). Each group comprises a minimum of 3 potsherds (up to 10) found within a same archeological layer, typically a thickness of about 20 cm. Altogether, the fragment groups encompass the entire 7-m thick stratigraphic sequence of Yarim Tepe II. We will present our first archeointensity results obtained using the experimental protocol developed for the Triaxe magnetometer, taking into account the effects of both the thermoremanent magnetization (TRM) anisotropy and the cooling rate dependence on TRM acquisition. The new data help to better constrain the geomagnetic field intensity variations in the Middle East during the 6th millennium BC. Thanks to the comparison with other datasets from Bulgaria and Syria, the new archeointensity results provide evidence for the occurrence of very rapid geomagnetic field intensity variations around 5500 BC.

  17. IEEE Nuclear and Space Radiation Effects Conference: Notes on the Early Conferences

    NASA Technical Reports Server (NTRS)

    Pellish, Jonathan A.; Galloway, Kenneth F.

    2013-01-01

    This paper gathers the remembrances of several key contributors who participated in the earliest Institute of Electrical and Electronics Engineers (IEEE) Nuclear and Space Radiation Effects Conferences (NSREC).

  18. International Conference on Positron Annihilation (6th) held at the University of Texas at Arlington, April 3-7, 1982. Program and Collected Abstracts.

    DTIC Science & Technology

    1983-02-23

    ita theo ia!r -co uf ii2y co,),v ne r-zytiDn. *comp’ rision of the.n a--Q- Ow c’om""oncnts of ther -o:lation cnarvs of * uj~tre-ited ’ad tr-,t-*d...11,2 + ions ’ nd of theo -e1.iation o4, thle c’-tio-ic v-rc-- cips. ’frepne they? is -_ drer-aSe of c*c~’n-rnsity in the-1 c.tio- nic vac’ ncjes...observed. The role of positronium tunnjling in the temperature dependence of Ps chemical reactions in liquids is explored. , I P. Jansen and V.P

  19. Ultrafast Phenomena 6. Proceedings of the International Conference (6th) Held in Kyoto, Japan on July 12-15, 1988. Springer Series in Chemical Physics, Volume 48

    DTIC Science & Technology

    1988-01-01

    energy is distributed among the various dye cells as indicated in Fig.l. The pump beam coupled out by thefirst two quartz plaies is used for pumping a...pulse generation system using a gain-switched distributed feedback (I)FB) 1,I). The 1.311m wavelength ID)FI 11) is driven by a strong sinusoidal RF...measure fast switching speeds. We used the E/O sampling technique with a distributed feedback laser diode to measure the signal delay of metal lines on a

  20. Papers by Cornell Authors to be Published in the Proceedings of the 6th International Conference on High Power Particle Beams, Kobe, Japan, 9-12 June 1986

    DTIC Science & Technology

    1986-06-01

    several disadvantages, including: 1. The turn-on delay , especially for short An active anode plasma source has been pulses or at low voltages , can waste a...and falling voltage pulse waveforms actively driven surface flashover anodes (using can be produced. Streak photographs of beamlets an energy source...coincident with impinge upon the surface are also believed to the beginning of the voltage pulse . The diode play a major role 141. Such "surface flashover

  1. Current Issues in University Education of Korea and Japan. Proceedings of the International Seminar (6th, Seoul, South Korea, July 7-8, 1987).

    ERIC Educational Resources Information Center

    Korean Council for Univ. Education, Seoul (South Korea).

    Fourteen conference papers on university education in South Korea and Japan are presented in this document. The papers cover administrative, social, student, and teaching issues and are grouped into six sections based on the major themes of the seminar. The sections are as follows: (1) university administration and management, including "Some…

  2. Union Security Agreements--Duty to Accommodate Religious Objections to Union Dues. "McDaniel v. Essex International, Inc.," 571 F.2d 338 (6th Cir. 1978).

    ERIC Educational Resources Information Center

    Reese, Mary Anne

    1979-01-01

    The holding that an employee could pay the equivalent of her union dues to a charity signifies an acceptance of accommodation and tolerance for differing religious practices in a pluralistic society. Available from Tennessee Law Review Association, Inc., 1505 W. Cumberland Ave., Knoxville, TN 37916. (Author/IRT)

  3. International Conference on Hypertonic Resuscitation (6th) (SALT 6), Held in Teton Village, Wyoming on 2-3 Jun 1994. Program and Abstracts

    DTIC Science & Technology

    1994-10-01

    Hetastarch significantly 200- T reduced isotonic fluid requirements by 65% 1. 50. T I and 50%, respectively, for the first 8 hours 100 , h ,-o.ac of...arterial pressure (MAP) After 2 h of hypotension, they received a 4 ml/kg bolus of a test solution and data were collected over 90 min. Results...Junger, Forrest C. Liu, William H . Loomis and David B. Hoyt Department of Surgery, Division of Trauma, Univeroity of California San Diego, San Diego

  4. 6TH Saint Petersburg International Conference on Integrated Navigation Systems. (6eme Conference Internationale de Saint Petersbourg sur les Systemes de Navigation Integree)

    DTIC Science & Technology

    1999-10-01

    ditik.ng comparing DGPS with other known references (i.e., radar altimeter , laser range finder and optical tracking -90. system), and a simple integration...Systems", emphasised the current importance of laser gyroscopes and the hopes placed in fibre optics gyros. Three interesting papers were presented...34Senseurs et syst~mes inertiels", a rappel6 l’importance actuelle des gyroscopes Laser et les espoirs mis dans les gyroscopes a fibre optique. Des travaux

  5. International Conference on Electronic Processes in Organic Materials (6th) Held in Gurzuf, Crimea, Ukraine, on September 25-29, 2006

    DTIC Science & Technology

    2006-09-29

    synthesis on the their base of the new type metal chelates Cu (II), Ni(H), Co(Il), Zn(Il) with N,N-coordination of chelate rings. The preparation of the metal...77 Kucheev S.L ELECTRICALLY CONTROLLED BISTABLE PHOTOSENSITIVITY IN SI/LC/ITO STRUCTURE ................................... 78 Z . Mykygjuk, A. Fechan...Bahat, H. Alyar, E. Kasap and Z . Kantarcm. THE ELECTRONIC AND NONLINEAR OPTICAL PROPERTIES (NLO) OF SOME PHIENYLAZINE MOLECULES

  6. Proceedings of the International Conference on II-VI Compounds and Related Optoelectronic Materials (6th) Held in Newport, Rhode Island on 13-17 September 1993

    DTIC Science & Technology

    1993-09-17

    almost complete intermixing 0 AA of the well and barrier materials. 250 900 :350 400 45%0 500 For quantum wells annealed at temperatures Anealhrng...versus the reciprocal tempera- based quantum wells , where a almost complete tUre tor (dTe,-CdNnTe. (’dTe/CdMgTe and lli (’dTe/’ intermixing is...periodic solids. Of course, one requires t , Output DBR Y reflectors Ouantujm I Wells "Oupu 0.5 " 0 0.5 Output d Fig. 3.Schematic drawings of a quantum

  7. Noise and Man 󈨡. Noise as a Public Health Problem. Proceedings of the International Congress (6th) Held in Nice on July 5 - 9, 1993

    DTIC Science & Technology

    1993-07-01

    l’Ouest et le Japon . Ceci est refl&t6 dans plus de 60 contributions dans ce domaine de recherche A ce congres. Nous avons dO structurer ces nombreuses...en particulier en Europe et au Japon - prdvoient le ddveloppemnent de groupe mocopropulseurs A faible dmission de bruit et de pneus silencicux. Les

  8. Proceedings of the International Conference on Cooperative Security and Defense Assistance (6th) Held in Washington, DC on June 18-19, 1981,

    DTIC Science & Technology

    1981-01-01

    for making a number of changes, including the modification of * * * * 4 the May 1977 " leprosy " letter. This, in itself, of course, should allow an...complaining about, it turns out that almost every one of the subsystems of that particular airplane has exceeded from an MTBF standpoint the original ...inflation changed the schedule originally foreseen for the promotional laws; which service in Italy - army, navy, air force - has the hardest problem

  9. Union Security Agreements--Duty to Accommodate Religious Objections to Union Dues. "McDaniel v. Essex International, Inc.," 571 F.2d 338 (6th Cir. 1978).

    ERIC Educational Resources Information Center

    Reese, Mary Anne

    1979-01-01

    The holding that an employee could pay the equivalent of her union dues to a charity signifies an acceptance of accommodation and tolerance for differing religious practices in a pluralistic society. Available from Tennessee Law Review Association, Inc., 1505 W. Cumberland Ave., Knoxville, TN 37916. (Author/IRT)

  10. College Perspective '75: New Thrusts, New Musts. Proceedings, Annual International Institute on the Community College (6th, Lambton College, Sarnia, Ontario, June 9-12, 1975).

    ERIC Educational Resources Information Center

    Delgrosso, G. M., Ed.; Allan, G. B., Ed.

    These conference papers deal with many topics of current interest to community college educators in the United States and Canada. Subjects discussed include: staff development as institutional change; adult education; personhood development in the community college; community-based education priorities and alternative futures; community college…

  11. Proceedings of the International Symposium on Interaction of Nonnuclear Munitions with Structures (6th), Held in Panama City Beach, Florida on 3-7 May 1993

    DTIC Science & Technology

    1993-05-07

    that no planes of weakness are introduced speed 16mm cine camera which has been modified to run into the targets. This arrangement gives a...able to access applicable PC- based DAHS CWE Supporting Codes and digitized biblio - Figure 3 depicts the overall DAHS CWE Manual development graphical

  12. International Meeting on Medical Simulation (6th), "The World of Simulation" Held in San Diego, California on January 14-17, 2006

    DTIC Science & Technology

    2006-07-01

    and Reggio Emilia , Italy Guides, instructions, Author’s kit, Conference PublicationsAddress(s name* ReviewHeaderTextFor review only <ETH> do not cite...inattentive af Madena and Reggia Emilia , Italy it the operating room by several faculty on our Clinical Competence Comnmtittee. The The structure of many

  13. International Conference on the Organometallic and Coordination Chemistry of Germanium, Tin and Lead (6th) Held in Brussels, Belgium on July 23-28, 1989

    DTIC Science & Technology

    1989-07-28

    4 , substituted on germanium by two tert-butyl groups, behaves to some extent as a biradical tBu Ge2PAr svtBu e-Ar -. 2 tB Ge(H)-P(H)Ar 2 2. e sovet 2...Aktiengesellschaft 4 Ths"Gemsenschapsemnister van Onderwljsen BrusselseAangelegenheden" M&T Chemicals bv Pharmachemle N.V. Solvay & Cie, S.A Merck-Belgolabo N.V...New York 12222, USA Bidentate Behavior of a Cyclic Tridentate Lewis Acid 1200: Lunch in the University Restaurant Poster viewing. Room 0-2 4 ,i

  14. 4H-Chromene-based anticancer agents towards multi-drug resistant HL60/MX2 human leukemia: SAR at the 4th and 6th positions.

    PubMed

    Puppala, Manohar; Zhao, Xinghua; Casemore, Denise; Zhou, Bo; Aridoss, Gopalakrishnan; Narayanapillai, Sreekanth; Xing, Chengguo

    2016-03-15

    4H-Chromene-based compounds, for example, CXL017, CXL035, and CXL055, have a unique anticancer potential that they selectively kill multi-drug resistant cancer cells. Reported herein is the extended structure-activity relationship (SAR) study, focusing on the ester functional group at the 4th position and the conformation at the 6th position. Sharp SARs were observed at both positions with respect to cellular cytotoxic potency and selectivity between the parental HL60 and the multi-drug resistant HL60/MX2 cells. These results provide critical guidance for future medicinal optimization. Copyright © 2016. Published by Elsevier Ltd.

  15. Benefits of IEEE-754 features in modern symmetric tridiagonaleigensolvers

    SciTech Connect

    Marques, Osni; Riedy, Jason E.; Vomel, Christof

    2006-03-12

    Bisection is one of the most common methods used to compute the eigenvalues of symmetric tridiagonal matrices. Bisection relies on the Sturm count: For a given shift a, the number of negative pivots in the factorization T - {sigma}I = LDL{sup T} equals the number of eigenvalues of T that are smaller than a. In IEEE-754 arithmetic, the value oo permits the computation to continue past a zero pivot, producing a correct Sturm count when T is unreduced. Demmel and Li showed that using oo rather than testing for zero pivots within the loop could significantly improve performance on certain architectures. When eigenvalues are to be computed to high relative accuracy, it is often preferable to work with LDL{sup T} factorizations instead of the original tridiagonal T. One important example is the MRRR algorithm. When bisection is applied to the factored matrix, the Sturm count is computed from LDL{sup T} which makes differential stationary and progressive qds algorithms the methods of choice. While it seems trivial to replace T by LDL{sup T}, in reality these algorithms are more complicated: In IEEE-754 arithmetic, a zero pivot produces an overflow followed by an invalid exception (NaN, or 'Not a Number') that renders the Sturm count incorrect. We present alternative, safe formulations that are guaranteed to produce the correct result. Benchmarking these algorithms on a variety of platforms shows that the original formulation without tests is always faster provided that no exception occurs. The transforms see speed-ups of up to 2.6x over the careful formulations. Tests on industrial matrices show that encountering exceptions in practice is rare. This leads to the following design: First, compute the Sturm count by the fast but unsafe algorithm. Then, if an exception occurs, recompute the count by a safe, slower alternative. The new Sturm count algorithms improve the speed of bisection by up to 2x on our test matrices. Furthermore, unlike the traditional tiny

  16. WIH-based IEEE 802.11 ECG monitoring implementation.

    PubMed

    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.

  17. Review of the IEEE Standard for Computerized Operating Procedure Systems

    SciTech Connect

    O'Hara, J.; Higgins, J.

    2010-02-26

    Increasingly nuclear power plant procedures, such as emergency operating procedures, are being presented in computer form with functionality to support operator use and management of the procedures. The U.S. Nuclear Regulatory Commission (NRC) currently has guidance for the review of computer-based procedures (CBPs); however, there remain CBP functions and human performance issues for which up-to-date guidance is lacking. The Institute of Electrical and Electronics Engineers (IEEE) has initiated a standard development effort to address the human factors engineering (HFE) aspects of CBP systems. When completed, it may provide guidance to supplement the NRC staff's review criteria. The purpose of our study was to evaluate the suitability of the IEEE Standard for use in the NRC's HFE safety reviews of CBP systems and to ensure that the guidance meets the NRC's standard for scientific and engineering rigor used in its own guidance development efforts. We established the following criteria with which to evaluate the Standard: (1) it should meet an existing need of NRC reviewers, (2) it should be based in sound HFE principles, (3) it should be thoroughly peer-reviewed, and (4) it should address CBP-related human performance issues identified in the literature. This report describes the methodology we used to evaluate each criterion. Our evaluation concluded that the Standard generally does meet these criteria, however several areas were identified for which additional clarifications are needed. Thus consideration of the Standard's use by the NRC is supported. The standard evaluation methodology developed in this study can be generally applied to the review of other HFE standards being considered for possible use or endorsement by the NRC.

  18. Smoking practices, risk perception of smoking, and environmental tobacco smoke exposure among 6th-grade students in Ciudad Juárez, Mexico.

    PubMed

    Bird, Yelena; Moraros, John; Olsen, Larry K; Forster-Cox, Sue; Staines-Orozco, Hugo; Buckingham, Robert W

    2007-02-01

    This study assessed the smoking practices, risk perception of smoking, and environmental tobacco smoke (ETS) exposure among adolescents in Ciudad Juárez, Mexico. We used a cross-sectional method to examine the smoking practices, risk perception of smoking, and ETS exposure of 6th-grade students (N=506), aged 11-13 years, attending six randomly selected middle schools. Schools were classified by school setting (i.e., public vs. private) and socioeconomic status (SES; i.e., low, middle, or high). The results indicated that 6th-grade students attending a public, low-SES school setting in Ciudad Juárez not only exhibited significantly higher rates of ETS exposure at home and in public places (p<.01) but also were more likely to have tried smoking (p<.01) and to be current smokers (p<.01), and were less likely to support a ban on smoking in public places (p<.01), compared with students who attended a private school or a public, middle- or high-SES school setting. These results provide further evidence that public health interventions to prevent initiation of smoking and to assist in smoking cessation among adolescents and to reduce their ETS exposure at home and in public need to target all school-aged students, especially those attending school in a low-SES settings.

  19. Metastatic lymph node ratio, 6th or 7th AJCC edition: witch is the best lymph node classification for esophageal cancer? Prognosis factor analysis in 487 patients

    PubMed Central

    CORAL, Roberto V.; BIGOLIN, André V.; CORAL, Roberto P.; HARTMANN, Antonio; DRANKA, Carolina; ROEHE, Adriana V.

    2015-01-01

    Background The esophageal cancer is one of the most common and aggressive worldwide. Recently, the AJCC changed the staging system, considering, among others, the important role of the lymph node metastasis on the prognosis. Aim To discuss the applicability of different forms of lymph node staging in a western surgical center. Methods Four hundred eighty seven patients with esophageal cancer were enrolled. Three staging systems were evaluated, the 6th and the 7th AJCC editions and the Lymph Node Metastatic Ratio. Results The majority of the cases were squamous cell carcinoma. The mean lymph node sample was eight. Considering the survival, there was no significant difference between the patients when they were classified by the 7th AJCC edition. Analysis of the Lymph Node Metastatic Ratio, just on the group of patients with 0 to 25%, has shown significant difference (p=0,01). The 6th AJCC edition shows the major significant difference between among the classifications evaluated. Conclusion In this specific population, the 7th AJCC edition for esophageal cancer was not able to find differences in survival when just the lymph node analysis was considered. PMID:26176242

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

    NASA Astrophysics Data System (ADS)

    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.

  1. Standard-compliant real-time transmission of ECGs: harmonization of ISO/IEEE 11073-PHD and SCP-ECG.

    PubMed

    Trigo, Jesús D; Chiarugi, Franco; Alesanco, Alvaro; Martínez-Espronceda, Miguel; Chronaki, Catherine E; Escayola, Javier; Martínez, Ignacio; García, José

    2009-01-01

    Ambient assisted living and integrated care in an aging society is based on the vision of the lifelong Electronic Health Record calling for HealthCare Information Systems and medical device interoperability. For medical devices this aim can be achieved by the consistent implementation of harmonized international interoperability standards. The ISO/IEEE 11073 (x73) family of standards is a reference standard for medical device interoperability. In its Personal Health Device (PHD) version several devices have been included, but an ECG device specialization is not yet available. On the other hand, the SCP-ECG standard for short-term diagnostic ECGs (EN1064) has been recently approved as an international standard ISO/IEEE 11073-91064:2009. In this paper, the relationships between a proposed x73-PHD model for an ECG device and the fields of the SCP-ECG standard are investigated. A proof-of-concept implementation of the proposed x73-PHD ECG model is also presented, identifying open issues to be addressed by standards development for the wider interoperability adoption of x73-PHD standards.

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

    NASA Astrophysics Data System (ADS)

    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.

  3. New archeointensity data from French Early Medieval pottery production (6th-10th century AD). Tracing 1500 years of geomagnetic field intensity variations in Western Europe

    NASA Astrophysics Data System (ADS)

    Genevey, Agnès; Gallet, Yves; Jesset, Sébastien; Thébault, Erwan; Bouillon, Jérôme; Lefèvre, Annie; Le Goff, Maxime

    2016-08-01

    Nineteen new archeointensity results were obtained from the analysis of groups of French pottery fragments dated to the Early Middle Ages (6th to 10th centuries AD). They are from several medieval ceramic production sites, excavated mainly in Saran (Central France), and their precise dating was established based on typo-chronological characteristics. Intensity measurements were performed using the Triaxe protocol, which takes into account the effects on the intensity determinations of both thermoremanent magnetization anisotropy and cooling rate. Intensity analyses were also carried out on modern pottery produced at Saran during an experimental firing. The results show very good agreement with the geomagnetic field intensity directly measured inside and around the kiln, thus reasserting the reliability of the Triaxe protocol and the relevance of the quality criteria used. They further demonstrate the potential of the Saran pottery production for archeomagnetism. The new archeointensity results allow a precise and coherent description of the geomagnetic field intensity variations in Western Europe during the Early Medieval period, which was until now poorly documented. They show a significant increase in intensity during the 6th century AD, high intensity values from the 7th to the 9th century, with a minimum of small amplitude at the transition between the 7th and the 8th centuries and finally an important decrease until the beginning of the 11th century. Together with published intensity results available within a radius of 700 km around Paris, the new data were used to compute a master curve of the Western European geomagnetic intensity variations over the past 1500 years. This curve clearly exhibits five intensity maxima: at the transition between the 6th and 7th century AD, at the middle of the 9th century, during the 12th century, in the second part of the 14th century and at the very beginning of the 17th century AD. Some of these peaks are smoothed, or

  4. Comparison of Values in 5th, 6th, 7th and 8th Grade Primary Education Music Class Students'? Workbooks According to Rokeach?s and Akbas's Value Classifications

    ERIC Educational Resources Information Center

    Çakirer, H. Serdar

    2014-01-01

    The aim of the present study is to compare the values in the songs of 5th, 6th, 7th and 8th grade primary education music classes students? workbooks according to the value categorizations proposed by Rockeach and Akbas and which values among the categories mentioned are taught to the students in the 5th, 6th, 7th and 8th grade primary education…

  5. Comparison of Values in 5th, 6th, 7th and 8th Grade Primary Education Music Class Students'? Workbooks According to Rokeach?s and Akbas's Value Classifications

    ERIC Educational Resources Information Center

    Çakirer, H. Serdar

    2014-01-01

    The aim of the present study is to compare the values in the songs of 5th, 6th, 7th and 8th grade primary education music classes students? workbooks according to the value categorizations proposed by Rockeach and Akbas and which values among the categories mentioned are taught to the students in the 5th, 6th, 7th and 8th grade primary education…

  6. Computer integrated drug prevention: a new approach to teach lower socioeconomic 5th and 6th grade Israeli children to say no to drugs.

    PubMed

    Gropper, M; Liraz, Z; Portowicz, D; Schindler, M

    1995-01-01

    Drug prevention education provides an important first line of defense against future drug use. Many drug prevention strategies have been developed which teach youngsters of all ages how to say no to drugs. Nevertheless, the problem of drug use and abuse continues to escalate, and younger children, particularly those undergoing harsh psychosocial stress (e.g., hunger, lack of housing, broken homes, family unemployment, etc.), are increasingly becoming a population at-risk. In this paper, the authors describe an original drug prevention program that was developed in Israel aimed at teaching resiliency skills to 5th and 6th grade children growing up in a poverty stricken, urban community. The program, drawing on social learning theory, utilizes an attractive, cartoon illustrated, computer program combined with games, role-playing and group work techniques to prevent future drug use in preadolescent children.

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

    PubMed Central

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

    2016-01-01

    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. PMID:27879688

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

    PubMed

    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.

  9. Climate Change and the Water Cycle: A New Southwest Regional Climate Hub Curriculum Unit for 6th-12th Grade Students

    NASA Astrophysics Data System (ADS)

    Elias, E.; Steele, C. M.; Bestelmeyer, S.; Haan-Amato, S.; Deswood, H.; Rango, A.; Havstad, K.

    2015-12-01

    As climate change intensifies, increased temperatures and altered precipitation will make water, a limited resource in the arid southwestern United States, even scarcer in many locations. The USDA Southwest Regional Climate Hub (SWRCH) developed Climate Change and the Water Cycle, an engaging and scientifically rigorous education unit for 6th -12th grade students. The unit is aligned with Common Core State Standards and Next Generation Science Standards. Nine activities can be conducted over 10 instruction hours. Each activity can also stand alone. In partnership with SWRCH, the Asombro Institute for Science Education developed the unit. Each activity was reviewed by an educator for educational practices and by a scientist for scientific accuracy. The unit was pilot tested with 524 students in 2014, and pre- and post-tests were administered. Ninety-one percent of students were able to name a greenhouse gas on the post-test, compared to only 48% on the pre-test. On the post-test, 86% of students identified the relationship between average global temperature and carbon dioxide levels in the atmosphere, compared to only 52% on the pre-test. A student commented: "I loved all of the activities! They are fun and help us understand about what goes on in the world." Educators who participated in pilot testing said: "the entire curriculum is great, but I was particularly impressed with the progression of ideas and the variety of lessons," and "students could see the relevance and importance of these real life issues." Anyone interested in using the unit to host workshops for teachers in southwestern states should contact Asombro for more information (information@asombro.org). The Climate Change and the Water Cycle 6th-12th grade curriculum unit is available online: www.swclimatehub.info/education/climate-change-and-water-cycle

  10. The 6th FDR prize

    NASA Astrophysics Data System (ADS)

    Funakoshi, Mitsuaki

    2013-06-01

    From the 58 papers published in 2012 in Fluid Dynamics Research, the following paper has been selected for the sixth FDR prize: The finite-difference lattice Boltzmann method and its application in computational aero-acoustics by Michihisa Tsutahara (Professor Emeritus, Kobe University, Japan), published in volume 44 (August 2012) 045507. This is a review paper of the author's recent work on the finite-difference lattice Boltzmann method (FDLBM). In this paper, the author introduces a modified FDLBM and its application to aero-acoustics. To solve the discrete Bhatnager, Gross and Krook equation for simulating fluid flow, the FDLBM applies a stable finite-difference scheme on a curvilinear coordinate system, whereas the ordinary lattice Boltzmann method uses regular lattices. It is known that for the lattice Boltzmann methods, there is difficulty in simulating high Mach number compressible flows in principle. To alleviate this, the author proposed the modified FDLBM, expanding the flexibility of setting time increments. With this FDLBM, the author has shown that it is possible to simulate compressible flows efficiently around complex bluff bodies and with complex aero-acoustic behaviour. The author summarizes all those works, including studies only available in Japanese up to now, in this review paper. After discussing the details of the FDLBM proposed by the author, example results of simulating the Aeolian tone generated from a circular cylinder at the Mach number M = 0.7 are shown. Then, the scheme is expanded for moving bodies by combining with the Arbitrary Lagrangian Eulerian formulation. Using this moving mesh scheme, the author shows the simulation results of the very strong sound pressure generated by a high-speed train in a tunnel. For issues of sound propagation in compressible two-phase flows whose density ratio is high, the two-particle model is introduced. Also, techniques to reduce noise generation from the flow velocity and pressure at gas-liquid interfaces are shown. Finally, the scattering of sound waves by water droplets is discussed. In thick fog, the sound coming from a distance becomes faint due to the sound-scattering effects of micro water droplets. The author gives an example of successfully solving such an issue by the FDLBM. It is highly admirable that the author developed the new FDLBM for aero-acoustic issues and has summarized it with sub-schemes to overcome several difficulties of engineering aeroacoustics in this review. It will certainly contribute to further development of fluid dynamics through computational aero-acoustics. Consequently, this paper was selected as the winner of the sixth FDR prize.

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

    NASA Astrophysics Data System (ADS)

    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.

  12. EDITORIAL: Proceedings of the 6th Edoardo Amaldi Conference on Gravitational Waves, Bankoku Shinryoukan, Okinawa, Japan, 20-24 June 2005 Proceedings of the 6th Edoardo Amaldi Conference on Gravitational Waves, Bankoku Shinryoukan, Okinawa, Japan, 20-24 June 2005

    NASA Astrophysics Data System (ADS)

    Mio, N.

    2006-04-01

    This issue is published as the Proceedings of the 6th Edoardo Amaldi Conference on Gravitational Waves, held on 20-24 June 2005 at Bankoku Shinryoukan in Okinawa, Japan. Since the first Amaldi conference was held in Frascati in 1994, eleven years have passed and the scale of the conference has grown with the increasing activity in the field of gravitational waves. As the centenary celebration of Einstein's 'miracle year', 2005 was called 'World Year of Physics'. Among his breakthroughs published in 1905, the special theory of relativity is recognized as the most significant revolution in physics, completely changing our views concerning time and space. Ten years later, Einstein proposed the general theory of relativity, by which he predicted the existence of gravitational waves (GWs). At that time, it was only a dream to observe a GW because its effect was so small. Efforts to detect GWs, pioneered by Weber, have continued for almost 40 years, yet their detection remained a dream. However, the presentations at this conference have convinced us that it is no longer a dream. The GW detector projects have made extraordinary advances; in particular, the significant sensitivity improvement of LIGO and the completion of the VIRGO detector mark the beginning of the new era of GW physics. Firm developments in theories and source estimations were also reported. In particular, the data analysis session was very active and various discussions were held. Elaborate experimental techniques were presented, some of them already achieving the requirements for the next generation of detectors, such as Advanced LIGO and LCGT. In addition to the earth-based detectors, many presentations concerning space detectors were contributed; they indicated that space would become the new stage for GW physics and astronomy. This issue brings together the papers which were presented at this exciting conference. The proceedings comprise two volumes; the largest part is published as a volume of

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

    NASA Astrophysics Data System (ADS)

    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.

  14. Developing IEEE medical device standards: a case study, wearable cuffless blood pressure measuring devices.

    PubMed

    Carey, Carole C; Zhang, Yuang-Ting

    2010-01-01

    The Institute of Electrical and Electronics Engineers Standards Association (IEEE-SA) is a leading standards developing organization of global industry standards in a wide-range of industries, including biomedical and healthcare.

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

    NASA Astrophysics Data System (ADS)

    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.

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

    SciTech Connect

    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.

  17. Algorithm XXX : functions to support the IEEE standard for binary floating-point arithmetic.

    SciTech Connect

    Cody, W. J.; Mathematics and Computer Science

    1993-12-01

    This paper describes C programs for the support functions copysign(x,y), logb(x), scalb(x,n), nextafter(x,y), finite(x), and isnan(x) recommended in the Appendix to the IEEE Standard for Binary Floating-Point Arithmetic. In the case of logb, the modified definition given in the later IEEE Standard for Radix-Independent Floating-Point Arithmetic is followed. These programs should run without modification on most systems conforming to the binary standard.

  18. 5/6th nephrectomy in combination with high salt diet and nitric oxide synthase inhibition to induce chronic kidney disease in the Lewis rat.

    PubMed

    van Koppen, Arianne; Verhaar, Marianne C; Bongartz, Lennart G; Joles, Jaap A

    2013-07-03

    Chronic kidney disease (CKD) is a global problem. Slowing CKD progression is a major health priority. Since CKD is characterized by complex derangements of homeostasis, integrative animal models are necessary to study development and progression of CKD. To study development of CKD and novel therapeutic interventions in CKD, we use the 5/6th nephrectomy ablation model, a well known experimental model of progressive renal disease, resembling several aspects of human CKD. The gross reduction in renal mass causes progressive glomerular and tubulo-interstitial injury, loss of remnant nephrons and development of systemic and glomerular hypertension. It is also associated with progressive intrarenal capillary loss, inflammation and glomerulosclerosis. Risk factors for CKD invariably impact on endothelial function. To mimic this, we combine removal of 5/6th of renal mass with nitric oxide (NO) depletion and a high salt diet. After arrival and acclimatization, animals receive a NO synthase inhibitor (NG-nitro-L-Arginine) (L-NNA) supplemented to drinking water (20 mg/L) for a period of 4 weeks, followed by right sided uninephrectomy. One week later, a subtotal nephrectomy (SNX) is performed on the left side. After SNX, animals are allowed to recover for two days followed by LNNA in drinking water (20 mg/L) for a further period of 4 weeks. A high salt diet (6%), supplemented in ground chow (see time line Figure 1), is continued throughout the experiment. Progression of renal failure is followed over time by measuring plasma urea, systolic blood pressure and proteinuria. By six weeks after SNX, renal failure has developed. Renal function is measured using 'gold standard' inulin and para-amino hippuric acid (PAH) clearance technology. This model of CKD is characterized by a reduction in glomerular filtration rate (GFR) and effective renal plasma flow (ERPF), hypertension (systolic blood pressure>150 mmHg), proteinuria (> 50 mg/24 hr) and mild uremia (>10 mM). Histological

  19. [Patterns of drinking alcohol tobacco smoking among 6th year students of the faculty of medicine in Białstok].

    PubMed

    Bielska, Dorota; Kurpas, Donata; Ołtarzewska, Alicja; Piotrowska-Depta, Maria; Gomółka, Ewa; Wojtal, Mariola; Florek, Ewa

    2014-01-01

    Alcohol and tobacco are legal, easily available addictive substances. There are no universal criteria of safe alcohol consumption but some scientific studies have allowed for determination of consumption levels helpful in evaluation of the pattern of drinking and evoking readiness to limit the amount of consumed alcohol. The aim of the work was to evaluate and compare the knowledge of 6th year students of the Faculty of Medicine of the Medical University of Biatystok in the academic years 2011/12 and 2012/13 concerning the effects of alcohol abuse, as well as to determine their drinking patterns and tobacco smoking structure. The study material was collected by means of anonymous voluntary surveys carried out before classes concerning the issues of addictions within the framework of family medicine subject block. 356 students took part in the study: 226 (63.5%) women and 130 (36.5%) men (p<0.000). 4.86% of the respondents displayed a high level of knowledge on the harmfulness of alcohol abuse; 63.43% had an average level of knowledge and 31.71% - a low one. 51,32% women and 62,3% men drank alcohol in a hazardous way. A relation was found between a low level of knowledge and the amount of alcohol consumed on a typical drinking day (rS=-0.15, p=0.03) as well as between a low level of knowledge and hazardous drinking (rS=-0.13, p=0.03). Among the respondents, 18,58% women and 14,63% men smoked cigarettes regularly. Those who are 6th year students in the academic year 2012/13 usually had started smoking within the first three years of study at the Medical University and drank greater amounts of alcohol on a typical drinking day than students surveyed in the 2011/12 year. A correlation was found between tobacco smoking and a greater frequency of getting drunk occasionally (rS=-0.18, p=0.002) among students of both years. Insufficient knowledge on the effects of alcohol abuse and smoking coexist with a higher risk of drinking alcohol.

  20. Impact on smoking behaviour of the New Zealand annual increase in tobacco tax: Data for the 5th and 6th year of increases.

    PubMed

    Li, Judy; Newcombe, Rhiannon; Guiney, Hayley; Walton, Darren

    2016-09-13

    New Zealand has implemented a series of seven annual increases in tobacco tax since 2010. All tax increases, except for the first in the series, were pre-announced. It is unusual for governments to introduce small, persistent, and predictable increases in tobacco tax, and little is known about the impact of such a strategy. This paper evaluates the impact of the 5(th) and 6(th) annual increases. Smokers' behaviours were self-reported during the three-month period before, and the three-month period after, the two annual increases. Responses to the two increases were analysed separately, and GEE models were used to control for socio-demographic variables, recent quit attempts, and the research design. Findings were consistent across years. The proportion of participants who made a smoking-related (54-56% before and after each tax increase) or product-related change (5(th) tax increase: 17-19%; 6(th) tax increase: 21-22%) did not significantly alter from before to after each tax increase. However, it should be noted that the proportion of participants making smoking-related changes was generally high, even prior to each increase. For example, before the 2015 tax increase, 1% reported quitting completely, 21% trying to quit, and 53% cutting down. In New Zealand, with its series of annual tobacco tax increases since 2010, there were no significant changes in smoking- or product- related behaviour associated with the fifth and sixth increases. Nevertheless, overall cessation-related activity was high, with a majority of participants reporting either quitting and/or cutting-down recently. Little is known about the impact of small, persistent, predictable tobacco tax increases on smoking behaviour. This study evaluated the impact of the fifth (in 2014) and sixth (2015) tax increases in an annual series implemented in New Zealand. Although there were no detectable changes in smoking behaviours from before to after each tax increase, self-reported cessation-related activity

  1. Evidence of strong Quaternary earthquakes in the epicentral areaof the April 6th 2009 L'Aquila seismic event from sediment paleofluidization and overconsolidation

    NASA Astrophysics Data System (ADS)

    Storti, F.; Balsamo, F.; Aldega, L.; Corrado, S.; Di Paolo, L.; Mastalertz, M.; Tallini, M.

    2012-04-01

    The strong seismological potential of the Central Apennines, including the L'Aquila basin, is documented in the historical heritage of the past two millenia and by paleoseismological data. Despite the main active fault system network of Central Italy is well described and mapped, the April 6th 2009 L'Aquila event showed that Mw> 6.0 earthquakes can occur on fault zones characterized by subtlemorphotectonic evidence, like the Paganica Fault, whose seismic hazard potential may thus be overlooked. An additional source of uncertainty is provided by the evidence that in the L'Aquila region many active extensional fault systems developed by negative inversion of pre-existing contractional deformation structures. The resulting complex along-strike segmentation and overlap patterns are thus governed by the interplay between the modern extensional stress field and the structural inheritance and reduce the effectiveness of predictive scaling laws, which do not typically account for fault attributes produced by polyphased tectonics. This is particularly true in the L'Aquila region, where seismic activation of the northwestern half of the basin-boundary fault system has been proposed for the 1703 Mw ~ 7.0 earthquake, whereas only the central segment was activated in 1461 and 2009, producing earthquakes with Mw ~ 6.0 - 6.3. The reasons for this dual behaviour are still unclear despite many structural and paleoseismological studies. Indirect evidence for paleoearthquake magnitude from ground shaking effects, like paleo-fluidization structures, can provide very useful complementary information on maximum expected earthquake intensities along active fault systems.In this work wedescribe in detail large paleo-fluidization-induced features associated with a previously unmapped extensional fault zone cutting through Quaternary strata. These sediments, including lacustrine lignites and mudstones, show a somehow enigmatic overconsolidation that we quantitatively describe, as well as

  2. Vegetation dieback as a proxy for temperature within a wet pyroclastic density current: A novel experiment and observations from the 6th of August 2012 Tongariro eruption

    NASA Astrophysics Data System (ADS)

    Efford, Jackson T.; Bylsma, Rebecca J.; Clarkson, Bruce D.; Pittari, Adrian; Mauriohooho, Kate; Moon, Vicki G.

    2014-10-01

    The 6th of August 2012 eruption of Te Maari (Mt Tongariro, New Zealand) generated wet pyroclastic density currents (PDCs) which caused widespread dieback of vegetation (singed, brown foliage) in their path. An absence of significant charcoal formation suggests that PDC temperatures were mostly below 250 °C. Textural evidence for liquid water being present in the matrices during emplacement (vesicles) suggests that temperatures were < 100 °C. We determined a probable minimum PDC temperature using an experiment replicating the critical temperatures required to induce foliar browning in seven species affected by the eruption. In locations where all species exhibited browned foliage (or were defoliated), temperatures were probably ≥ 64 °C assuming a PDC duration of 60 s. In the more distal areas, where only the most susceptible species were browned while others remained healthy and unaffected, temperatures were probably around 51-58 °C. These results have relevance to volcanic hazard mitigation and risk assessment, especially on the popular Tongariro Alpine Crossing.

  3. The beginning of metallurgy in the southern Levant: a late 6th millennium CalBC copper awl from Tel Tsaf, Israel.

    PubMed

    Garfinkel, Yosef; Klimscha, Florian; Shalev, Sariel; Rosenberg, Danny

    2014-01-01

    The beginning of metallurgy in the ancient Near East attracts much attention. The southern Levant, with the rich assemblage of copper artifacts from the Nahal Mishmar cave and the unique gold rings of the Nahal Qanah cave, is regarded as a main center of early metallurgy during the second half of the 5th millennium CalBC. However, a recently discovered copper awl from a Middle Chalcolithic burial at Tel Tsaf, Jordan Valley, Israel, suggests that cast metal technology was introduced to the region as early as the late 6th millennium CalBC. This paper examines the chemical composition of this item and reviews its context. The results indicate that it was exported from a distant source, probably in the Caucasus, and that the location where it was found is indicative of the social status of the buried individual. This rare finding indicates that metallurgy was first diffused [corrected] to the southern Levant through exchange networks and only centuries later involved local productionThis copper awl, the earliest metal artifact found in the southern Levant, indicates that the elaborate Late Chalcolithic metallurgy developed from a more ancient tradition.

  4. Modeling of local 3D effects of the April 6th 2009 l’Aquila (Italy) event in the City of Rome

    NASA Astrophysics Data System (ADS)

    Caserta, A.; Oprsal, I.; Rovelli, A.; Marra, F.; Govoni, A.; Vinci, S.

    2009-12-01

    Several events of the seismic sequence started on 6th of April 2009, that struck the town of l'Aquila, Italy, have been recorded by an array of seismic stations, located approximately 90 km south-west of the epicenters. One of the stations is in a 80-m-deep borehole, installed since the early 2008 in the middle of the main sedimentary body of the city: the Tiber valley. This represents a unique opportunity to tune seismic simulations of the soil shaking due to a seismic sequence located in Central Apennines region. This latter is considered, with the Albani Hills one, the main seismogenic area responsible of the seismic hazard in the city. We have generated a 3D velocity model for a portion of the city (5 EW x 3 NS km2 wide, and 200 m deep, including topography) where the array is located. A viscoelastic wave propagation due to S-wave pulse of general polarization and given incidence is obtained by the 3D FD hybrid numerical modeling. The 3D pulse response and the borehole recording are then used to generate the complete 3D synthetics covering the area. The results are verified by comparing to the surface recordings and large ground motion amplifications data.

  5. The Hetu'u Global Network: Using the rare June 5th/6th Transit of Venus to Bring Astronomy to the Remote Easter Island

    NASA Astrophysics Data System (ADS)

    Faherty, Jacqueline; Rodriguez, D.

    2013-01-01

    There are rare times in astronomy when a celestial event, visible in broad daylight, can be used to measure a fundamental parameter and inspire a globe full of school age students. The June 5th/6th transit of Venus was one such event. In celebration, nine astronomy postdocs from the Chilean mainland traveled to Easter Island to lead a series of astronomy outreach activities over three days, culminating in a transit-viewing event. Our team dubbed "Equipo Hetu'u" or "Team Star" in the Rapa Nui (Easter Island native) language spent two days giving astronomy talks and doing hands-on demonstrations at the Museo Antropologico P. Sebastian Englert. In the final day-and-a-half leading up to the transit, we visited the science classes in the majority of the schools on the island, in order to spread the message about the once-in-a-lifetime transit event, highlighting how we planned on using it to measure the distance to the Sun. We estimate over 25% 1500 people) of this remote island participated in one or more of our organized activities. Our experience with this project is an excellent lesson on how to organize, lead, and fully execute a major outreach endeavor that inspires hundreds with minimal resources (save the spectacular event provided by the cosmos).

  6. The Beginning of Metallurgy in the Southern Levant: A Late 6th Millennium CalBC Copper Awl from Tel Tsaf, Israel

    PubMed Central

    Garfinkel, Yosef; Klimscha, Florian; Shalev, Sariel; Rosenberg, Danny

    2014-01-01

    The beginning of metallurgy in the ancient Near East attracts much attention. The southern Levant, with the rich assemblage of copper artifacts from the Nahal Mishmar cave and the unique gold rings of the Nahal Qanah cave, is regarded as a main center of early metallurgy during the second half of the 5th millennium CalBC. However, a recently discovered copper awl from a Middle Chalcolithic burial at Tel Tsaf, Jordan Valley, Israel, suggests that cast metal technology was introduced to the region as early as the late 6th millennium CalBC. This paper examines the chemical composition of this item and reviews its context. The results indicate that it was exported from a distant source, probably in the Caucasus, and that the location where it was found is indicative of the social status of the buried individual. This rare finding indicates that metallurgy was first defused to the southern Levant through exchange networks and only centuries later involved local production. This copper awl, the earliest metal artifact found in the southern Levant, indicates that the elaborate Late Chalcolithic metallurgy developed from a more ancient tradition. PMID:24671185

  7. Partnering to change the world for people with haemophilia: 6(th) Haemophilia Global Summit, Prague, Czech Republic, 24-26(th) September 2015.

    PubMed

    Astermark, Jan; Hart, Dan; Lobet, Sébastien; Blatný, Jan; d'Oiron, Roseline; Kenet, Gili; Dolan, Gerry; Libotte, Valérie; Hermans, Cedric

    2016-07-01

    The 6(th) Haemophilia Global Summit was held in Prague, Czech Republic, in September 2015. The programme was designed by an independent Scientific Steering Committee of haemophilia experts and aimed to share optimal management strategies for haemophilia at all life stages, explore recent potential advances in the management of haemophilia A and B and discuss challenges in haemophilia care. In this supplement from the meeting, Dan Hart reviews the lessons that can be learnt from cost-constrained environments with regard to improving care for people with haemophilia globally. Sébastien Lobet discusses the importance of physical activity for optimising care and Roseline d'Oiron and Jan Blatný consider the role of real-world data in understanding the effect of treatment in a clinical setting over the long term and the true impact of treatment on the day-to-day life of the patient. Gili Kenet addresses the current challenges relating to the optimal management of prophylaxis, and Gerry Dolan and Cedric Hermans discuss the value of pharmacokinetic (PK) parameters in informing treatment decisions. Cedric Hermans and Valérie Libotte explore the importance of considering social and occupational development factors as an integral part of haemophilia care, and Jan Astermark reviews key strategies to predict and prevent inhibitor development.

  8. Structure and Topology of a Peptide Segment of the 6th Transmembrane Domain of the Saccharomyces cerevisae α-Factor Receptor in Phospholipid Bilayers

    PubMed Central

    Valentine, Kathleen G.; Liu, Shi-Feng; Marassi, Francesca M.; Veglia, Gianluigi; Opella, Stanley J.; Ding, Fa-Xiang; Wang, Shu-Hua; Arshava, Boris; Becker, Jeffrey M.

    2012-01-01

    A detailed analysis of the structure of an 18-residue peptide AQSLLVPSIIFILAYSLK [M6(252–269, C252A)] in 1,2-dimyristoyl-sn-glycero-phosphocholine bilayers was carried out using solid state NMR and attenuated total reflection Fourier transform infrared spectroscopy. The peptide corresponds to a portion of the 6th transmembrane domain of the α-factor receptor of Saccharomyces cerevisiae. Ten homologs of M6(252–269, C252A) were synthesized in which individual residues were labeled with 15N. One- and two-dimensional solid state NMR experiments were used to determine the chemical shifts and 1H–15N dipolar coupling constants for the 15N-labeled peptides in oriented dimyristoylphosphatidylcholine bilayers on stacked glass plates. These parameters were used to calculate the structure and orientation of M6(252–269, C252A) in the bilayers. The results indicate that the carboxyl terminal residues (9–14) are α-helical and oriented with an angle of about 8° with respect to the bilayer normal. Independently, an attenuated total reflection Fourier transform infrared spectroscopy analysis on M6(252–269, C252A) in a 1,2-dimyristoyl-sn-glycero-phosphocholine bilayer concluded that the helix tilt angle was about 12.5°. The results on the structure of M6(252–269, C252A) in bilayers are in good agreement with the structure determined in trifluoroethanol/water solutions (B. Arshava et al. Biopolymers, 1998, Vol. 46, pp. 343–357) . The present study shows that solid state NMR spectroscopy can provide high resolution information on the structure of transmembrane domains of a G protein-coupled receptor. PMID:11473349

  9. Early fetal gender determination using real-time PCR analysis of cell-free fetal DNA during 6th-10th weeks of gestation.

    PubMed

    Khorram Khorshid, Hamid Reza; Zargari, Maryam; Sadeghi, Mohammad Reza; Edallatkhah, Haleh; Shahhosseiny, Mohammad Hassan; Kamali, Koorosh

    2013-05-07

    Nowadays, new advances in the use of cell free fetal DNA (cffDNA) in maternal plasma of pregnant women has provided the possibility of applying cffDNA in prenatal diagnosis as a non-invasive method. In contrary to the risks of invasive methods that affect both mother and fetus, applying cffDNA is proven to be highly effective with lower risk. One of the applications of prenatal diagnosis is fetal gender determination, which is important in fetuses at risk of sex-linked genetic diseases. In such cases by obtaining the basic information of the gender, necessary time management can be taken in therapeutic to significantly reduce the necessity of applying the invasive methods. Therefore in this study, the probability of detecting sequences on the human Y-chromosome in pregnant women has been evaluated to identify the gender of fetuses. Peripheral blood samples were obtained from 80 pregnant women with gestational age between 6th to 10th weeks and the fetal DNA was extracted from the plasma. Identification of SRY, DYS14 & DAZ sequences, which are not presentin the maternal genome, was performed using Real-Time PCR. All the obtained results were compared with the actual gender of the newborns to calculate the test accuracy. Considerable 97.3% sensitivity and 97.3% specificity were obtained in fetal gender determination which is significant in the first trimester of pregnancy. Only in one case, false positive result was obtained. Using non-invasive method of cffDNAs in the shortest time possible, as well as avoiding invasive tests for early determination of fetal gender, provides the opportunity of deciding and employing early treatment for fetuses at risk of genetic diseases.

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

    SciTech Connect

    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.

  11. IEEE International Symposium Information Theory, held at Santa Monica California, February 9-12, 1981.

    DTIC Science & Technology

    1981-01-01

    82 "Adaptive Image Transform Coding: A Theoretic Approach and Approximations for Simplifying the Digital Implementation," W. Mauersberger (Germany...also on the adaptive system are investigated. ADAPTIVE IMAGE TRANSFORM CODING: A THEORETIC IPPROACH AND APPROXIMATIONS FOR SIMPLIFYING THE DIGITAL...IMPLEMENTATION, W. Mauersberger (Germany). An intraframe image transform coding system can be significantly improved by an adaptive control especially if a

  12. IEEE 1982. Proceedings of the international conference on cybernetics and society

    SciTech Connect

    Not Available

    1982-01-01

    The following topics were dealt with: knowledge-based systems; risk analysis; man-machine interactions; human information processing; metaphor, analogy and problem-solving; manual control modelling; transportation systems; simulation; adaptive and learning systems; biocybernetics; cybernetics; mathematical programming; robotics; decision support systems; analysis, design and validation of models; computer vision; systems science; energy systems; environmental modelling and policy; pattern recognition; nuclear warfare; technological forecasting; artificial intelligence; the Turin shroud; optimisation; workloads. Abstracts of individual papers can be found under the relevant classification codes in this or future issues.

  13. Developing safety standards for electromagnetic energy: the IEEE International Committee on Electromagnetic Safety (ICES).

    PubMed

    Murphy, Michael R; Petersen, Ronald C

    2006-01-01

    ICES develops (1) standards for the safe use of electromagnetic energy in the range of 0 Hz to 300 GHz relative to the potential hazards of exposure to humans, volatile materials, and explosive devices, (2) standards for products that emit electromagnetic energy by design or as a by-product of their operation, and (3) standards for environmental limits. ICES history, goals, organization, leadership, and products are described.

  14. Proceedings of the 2011 IEEE international vacuum electronics conference: book of abstracts

    SciTech Connect

    2011-07-01

    This book includes a unique panorama of latest advances in vacuum electronic devices and applications covered in plenary talks, contributed papers and posters. High power microwaves and microwave tubes were the two themes for the pre-conference tutorials. Papers relevant to INIS are indexed separately.

  15. Proceedings of the 1985 IEEE international conference on robotics and automation

    SciTech Connect

    Not Available

    1985-01-01

    This book presents the papers given at a conference on the computer-related aspects of robots. Topics considered at the conference included machine vision in robotics, object recognition, navigation for mobile robots, expert systems, space applications, manipulator design, sensory feedback, computer-aided design, image processing, visual inspection for industry, algorithmic motion planning, learning, optimal control, multiprocessor architectures for control, robot software, and trajectory planning.

  16. The IEEE eighteenth international symposium on fault-tolerant computing (Digest of Papers)

    SciTech Connect

    Not Available

    1988-01-01

    These proceedings collect papers on fault detection and computers. Topics include: software failure behavior, fault tolerant distributed programs, parallel simulation of faults, concurrent built-in self-test techniques, fault-tolerant parallel processor architectures, probabilistic fault diagnosis, fault tolerances in hypercube processors and cellular automation modeling.

  17. Proceedings of the third international IEEE conference on Ada applications and environments

    SciTech Connect

    Not Available

    1988-01-01

    These proceedings collect papers on software applications. Topics include: An interleaving symbolic execution approach for the formal verification of Ada programs with tasking, fault-tolerant Ada software, object-oriented frameworks for Ada, and generating multitasking Ada programs from high-level specifications.

  18. IEEE 1990 International Symposium on Electromagnetic Compatibility, Washington, DC, Aug. 21-23, 1990, Record

    NASA Astrophysics Data System (ADS)

    The present conference discusses topics in EM shielding effectiveness, system-level EMC, EMP effects, circuit-level EMI testing, EMI control, analysis techniques for system-level EMC, EMP protective measures, EMI test methods, electrostatic-discharge testing, printed circuit-board design for EMC, and EM environment effects. Also discussed are EMI measurement procedures, EM spectrum-management issues for the 21st century, antenna and propagation effects on EMI testing, EMI control in cables, socioeconomic aspects of EMC, systemwide EMI controls, and EM radiation and coupling.

  19. Book of Abstracts, 1983 IEEE International Symposium on Applications of Ferroelectrics (ISAF).

    DTIC Science & Technology

    1984-05-31

    pyroelectric detectors and other devices. The change of the permittivity in gamma-irradiated and Cr 3+- and V02 +-doped TGS sinle crystals after...using very sensitive piezoelectric cells on a mechanical Earth-fixed detector to materialize a direct coupling of gravity waves, or the space-time...Institute of Ceramics, Peoples Republic of China 3B-3 High Pressure Shock Wave Arrival Detectors Utilizing Lithium Niobate - P.L. Stanton and R. A. Graham

  20. IEEE 1451.2 based Smart sensor system using ADuc847

    NASA Astrophysics Data System (ADS)

    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.

  1. Introduction to IEEE-EMBS -- What Can the Society Do for You?

    PubMed

    Oakley, Barbara; Lazareck, Lisa; Wolf, Laura

    2005-01-01

    IEEE-EMBS is the largest bioengineering society in the world. This paper introduces material about the Society and its benefits, including the EMBS mission, types of EMBS membership, and direct membership benefits such as the EMB Magazine. EMBS governance is also explained, including the new worldwide representational organization for AdCom (Administrative Committee), and recent changes in the Executive Committee. EMBS delegates to other societies are described, as well as the infrastructure of the main office and duties of key personnel there. Infostructure efforts related to the website and web-based conference registration and manuscript submission are also briefly discussed. Publications sponsored and co-sponsored by EMBS are reviewed. Plans for future national conferences are put forth. The various EMBS awards are outlined. Context is provided for the relationship between IEEE and EMBS, and a brief description is provided of IEEE organization and benefits.

  2. Performance Analysis of Sleep Mode Operation in IEEE 802.16m Mobile WiMAX

    NASA Astrophysics Data System (ADS)

    Baek, Sangkyu; Son, Jung Je; Choi, Bong Dae

    We mathematically analyze the sleep mode operation of IEEE 802.16m. The sleep mode operation for downlink traffic is modeled as a 3-dimensional discrete time Markov chain. We obtain the average power consumption of a mobile station and the average delay of a message. Numerical results match simulations very well. Numerical results show that there is a tradeoff between power consumption and message delay. We find the optimal lengths of sleep cycle and close-down time that minimize the power consumption while satisfying the quality of service (QoS) constraint on message delay. The power consumption of the sleep mode in IEEE 802.16m is better than that of sleep modes in legacy IEEE 802.16e standard under the same delay bound.

  3. An Analytical Model for the Performance Analysis of Concurrent Transmission in IEEE 802.15.4

    PubMed Central

    Gezer, Cengiz; Zanella, Alberto; Verdone, Roberto

    2014-01-01

    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. PMID:24658624

  4. Improving IEEE 802.15.4 for Low-Latency Energy-Efficient Industrial Applications

    NASA Astrophysics Data System (ADS)

    Chen, Feng

    The IEEE 802.15.4 standard for LR-WPAXs is becoming a de-facto standard for Wireless Sensor Xetworks (WSXs) applications in industrial fields. In this paper, we evaluate the latency performance of the IEEE 802.15.4 protocol based on a typical industrial scenario: a star network with 20 devices that send short messages (1 Byte) to the PAX coordinator. We analyzed the behavior of the GTS mechanism in the standard analytically. The results reveal essential limitations of the standard for low-latency applications in automation environments. According to our findings, we propose an enhanced protocol version that fully supports industry demands on low-latency communication. Our protocol version uses the original physical layer and, thus, can be implemented conveniently using cheap IEEE 802.15.4 hardware. The analytical results prove that we are able to meet the guaranteed low latency of 10 ms as specified by typical automation environments.

  5. Efficiency testing of medium induction motors: A comment on IEEE Std 112-1991

    SciTech Connect

    Gray, G.G.; Martiny, W.J.

    1996-09-01

    The energy crisis of 1973 focused attention on the efficiency of polyphase induction motors, and the need to have a test procedure that was repeatable and accurate. Medium induction motors, especially those in the size range 1 through 125 horsepower, were important because of the large number in service and the fact that a significant efficiency improvement through redesign was economically feasible. In response to this the ANSI/IEEE Std. 112, ``IEEE Standard Test Procedure for Polyphase Induction Motors and Generators`` Method B was chosen for testing medium ac motors for efficiency. The current version IEEE std. 112-1991 Method B contains several requirements for accuracy improvement which have been found to be effective. Even though the Method B procedure with the additional accuracy requirement has been in use since 1984 no rational has been published to support these extra requirements. The paper discusses the purpose of these improvements, and also point out some weakness in procedure.

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

    PubMed

    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.

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

    PubMed

    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.

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

    SciTech Connect

    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.

  9. How Do 4th, 5th, and 6th Grade Students' Categories of Cognitive Reflections in Interviews on Derivational Morphology Compare to Their Upper Level Spelling Inventory Orthographic Knowledge?

    ERIC Educational Resources Information Center

    Smith, Darcie D.

    2012-01-01

    Eighty-seven 4th, 5th and 6th grade students were administered the "Derivational Relatedness Interview" (DRI) (Templeton, Smith, Moloney, Van Pelt, & Ives, 2009). The purpose of this instrument is to explore students' understanding of derivational morphology. During the same week, the subjects were also administered an Upper…

  10. Study of the Effects on Student Knowledge and Perceptions of Activities Related to Submetering the 6th Grade Wing of a Middle School, to Displaying the Carbon Footprint, and to Efforts to Reduce Energy Consumption and Greenhouse Gases

    ERIC Educational Resources Information Center

    Peck, Rick

    2009-01-01

    The purpose of the study was to determine the effects upon student knowledge and perceptions regarding greenhouse gas emissions as a result of an intervention relying upon the submetering the 6th grade wing of a Middle School, displaying the information regarding electrical consumption and carbon footprint, and reducing the electrical consumption…

  11. Applying IEEE storage system management standards at the National Storage Laboratory

    SciTech Connect

    Louis, S.; Hyer, S.W.

    1992-12-04

    Since its inception in 1990, the IEEE Storage System Standards Working Group has identified storage-system management as an area in need of further development The pressing need for standards in storage-system management arises from the requirement to exchange management information and to provide control in a consistent predictable manner between the components of a storage system. An appropriate set of management standards will allow multiple vendors to supply storage management subsystems or applications that are integral to or compatible with new storage systems conforming to future IEEE standards. An early, practical application of IEEE storage-system-management work is being pursued at the National Storage Laboratory (NSL), a recently-formed industrial collaboration at Lawrence Livermore National Laboratory. The NSL`s purpose is to develop advanced hardware and software technologies for high-performance, distributed storage systems. Since storage system management is of critical concern, it is being explored in depth at the NSL. Work was initiated to define basic management requirements and develop generalized graphical-user-interface tools using remote-procedure-call mechanisms to implement the NSL`s conceptual management framework. Several constraints were imposed on the development of early versions of this work to maintain compatibility with the NSL`s underlying UniTree-based software architecture and to provide timely prototypes and proof of concept. The project leverages the on-going standards work of the IEEE Storage System Standards Working Group (SSSWG) and also explores some of the relationships and interactions between IEEE storage-system management and more well known management methods for distributed systems and networks. It will have long term benefits by providing ``real-life`` storage-system-management requirements to the IEEE SSSWG for validation of evolving standards.

  12. Process evaluation for a school-based physical activity intervention for 6th- and 7th-grade boys: reach, dose, and fidelity.

    PubMed

    Robbins, Lorraine B; Pfeiffer, Karin Allor; Wesolek, Stacey M; Lo, Yun-Jia

    2014-02-01

    The purpose was to evaluate the reach, dose, and fidelity of Guys Only Activity for Life (G.O.A.L.), a 7-week pilot intervention conducted from February to March 2011 to increase 6th and 7th grade boys' moderate-to-vigorous physical activity (MVPA). One middle school was randomly assigned to the G.O.A.L. intervention and another from the same urban school district in the Midwestern U.S. to a comparison condition. Thirty boys, ages 10-14 years, participated in each school. The intervention, guided by the Health Promotion Model (HPM) and Self-Determination Theory (SDT), consisted of a 90-min after-school physical activity club 4 days/week and one motivational interviewing session with a registered (school) nurse. Data were gathered via attendance records, club observations, heart rate monitors, audio-taping of motivational interviewing sessions, and surveys. On average boys attended the club 2.11 days/week (SD=.86). A trained independent process evaluator reported that the physical activity club instructors provided the boys with the opportunity for a mean of 25.8 min/day of MVPA. Using a four-point Likert scale (1=disagree a lot; 4=agree a lot), the process evaluator perceived that the club was delivered with high fidelity and adherence to the underlying theories (M=3.48; SD=0.39). Sessions with the nurse lasted an average of 13 min, 29 s. All boys attended. Two trained independent coders indicated that the nurse demonstrated at least beginning proficiency for all tasks associated with motivational interviewing, with the exception of using sufficient open- as opposed to closed-ended questions and reflections compared to questions. Fidelity related to session delivery and adherence to the theories was high (M=3.83; SD=0.19). The process evaluation data indicated that strategies are needed to increase attendance and boys' MVPA during the club time. Copyright © 2013 Elsevier Ltd. All rights reserved.

  13. Emergency Preparedness and Management at the University of L’aquila (Central Italy) and the Role of Students’ Associations in the April 6th 2009 Earthquake

    PubMed Central

    Magni, Michele; Fraboni, Rita; Marincioni, Fausto

    2017-01-01

    Introduction: On April 6th 2009 an earthquake of Mw=6.3 hit the historical downtown of L’Aquila and its hinterland causing more than 300 fatalities and severe damage to private and public buildings. At the time, the University of L’Aquila represented a major source of employment and income for the city. The earthquake impacted both the facilities and the administrative, financial and patrimonial activities of the university, bringing into the open the tendency – widespread in Italy – to rely on adaptive tactics rather than on strategic pre-disaster plans. This paper investigates the university’s emergency preparedness and response capability and  the strategies adopted to restore the education activities as well as avoid students migration to other universities. In addition, emphasis is placed on the role played by Student Associations in pre and post-disaster phases, and how students perceived the activities performed by these associations. Methods: To achieve this goal, it was undertaken: i) qualitative evaluation to assess the impact of earthquake on services and facilities of the university, the emergency preparedness and the measures adopted to face the emergency, ii) survey on the role played by Student Associations, both in emergency preparedness and response, according to students’ perception; iii) quantitative analysis to measure changes in the enrollment trend after the earthquake, and how university policies could curb students’ migration. Results: The policies adopted by the University allowed to diminish students’ migration; however, the measures taken by the university were based on an ad hoc plan as no emergency and continuity plans were prepared in advance. Similarly Student Associations got involved more in restoration activities than in emergency preparedness and risk awareness promotion. Discussion: Greater awareness and involvement are essential at each level (administrators, faculties, students) to plan in advance for an

  14. Design of acquisition devices management subsystem for IEEE 1073 compliant software agents.

    PubMed

    Nagin, V A; Potapov, I V; Selishchev, S V

    2002-01-01

    The paper addresses the issue of device management system design for software agents compliant with IEEE 1073 device communication standard. Based on middleware architecture the device control layer represents a universal versatile object-oriented application-programming interface. The approach presented in the paper allows to implement plug-and-play integration and interoperability of medical acquisition devices within the medical device system be means of common middleware services. Adherence to Medical Data Information Base nomenclature, component part of IEEE 1073 communication standard, adds necessary consistency to presented component-based infrastructure.

  15. Maxi program at IEEE EMBS Student Club of Beijing University of Posts and Telecommunications.

    PubMed

    Wu, Yunfeng; Tao, Ningning; Tang, Luxian; Ma, Xu; Garcia, Gonzalo A; Mitsui, Mie

    2004-01-01

    This paper presents the recently launched Maxi Program at IEEE EMBS Student Club of Beijing University of Posts and Telecommunications. The program initiates a variety of seminar series covering biomedical expertise and professional communication skills, forms a cooperative partnership between students, university and industry through guest speakers events and industry tours, and sets in motion personal consultative services (PCS) to foster the individualized competence of students. This extended program could be an innovative model of self-development as an affiliated student chapter/club with IEEE EMBS.

  16. A New Analytic Method for IEEE 802.11 Distributed Coordination Function

    NASA Astrophysics Data System (ADS)

    Hwang, Gang Uk; Chung, Min Young; Lee, Yutae

    In this paper, we consider a network of N identical IEEE 802.11 DCF (Distributed Coordination Function) terminals with RTS/CTS mechanism, each of which is assumed to be saturated. For performance analysis, we propose a simple and efficient mathematical model to derive the statistical characteristics of the network such as the inter-transmission time of packets in the network and the service time (the inter-transmission time of successful packet transmissions) of the network. Numerical results and simulations are provided to validate the accuracy of our model and to study the performance of the IEEE 802.11 DCF network.

  17. Differential Space-Time Modulation for Wideband Wireless Networks

    DTIC Science & Technology

    2006-09-30

    modulation for wireless relay networks in Nakagami -m channels,” in Proceedings of the 2006 IEEE International Conference on Acoustic, Speech, and Signal... Nakagami -m fading channels," in Proceedings of the 6th IEEE International Workshop on Signal Processing Advances for Wireless Communications (SPAWC

  18. 1995 IEEE 16. symposium on fusion engineering. Volume 2

    SciTech Connect

    Miley, G.H.; Elliott, C.

    1995-12-31

    The papers in this volume are divided into the following sections: DIII-D; MFE (Magnetic Fusion Energy) subsystem development; MFE materials, activation, and safety; MFE toroidal experiments; MFE reactor studies; IFMIF (International Fusion Materials Irradiation Facility)/materials irradiation; TPX design; alternative confinement; spherical configurations; magnet technology; fusion economics; heating and fueling; and anomalous reactions in solids. Separate abstracts were prepared for most papers in this volume.

  19. Some problems of implementation: ANSI/IEEE Std 1149.1 in microcontroller design

    NASA Astrophysics Data System (ADS)

    Adamkiewicz, Hubert; Glinski, Krzysztof; Lewandowski, Artur

    1992-08-01

    The paper presents some problems of implementation ANSI/IEEE Std 1149.1 worked out in the Industrial Institute of Electronics (PIE) microcontroller board. Diagnostic properties of some special hardware solutions and examples of testing procedures are described. Testing was performed with the help of the PIE diagnostic bus analyzer.

  20. Evaluation of H.264/AVC over IEEE 802.11p vehicular networks

    NASA Astrophysics Data System (ADS)

    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.

  1. Evaluation of the Effects of Hidden Node Problems in IEEE 802.15.7 Uplink Performance

    PubMed Central

    Ley-Bosch, Carlos; Alonso-González, Itziar; Sánchez-Rodríguez, David; Ramírez-Casañas, Carlos

    2016-01-01

    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. PMID:26861352

  2. IEEE802.15.6 -based multi-accelerometer WBAN system for monitoring Parkinson's disease.

    PubMed

    Keränen, Niina; Särestöniemi, Mariella; Partala, Juha; Hämäläinen, Matti; Reponen, Jarmo; Seppänen, Tapio; Iinatti, Jari; Jämsä, Timo

    2013-01-01

    In this paper we present a detailed example of a wireless body area network (WBAN) scenario utilizing the recent IEEE802.15.6 standard as applied to a multi-accelerometer system for monitoring Parkinson's disease and fall detection. Ultra wideband physical layer and standard security protocols are applied to meet application requirements for data rate and security.

  3. Performance Analysis of Non-saturated IEEE 802.11 DCF Networks

    NASA Astrophysics Data System (ADS)

    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.

  4. Performance characterization of the IEEE 802.11 signal transmission over a multimode fiber PON

    NASA Astrophysics Data System (ADS)

    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.

  5. Comparison of IEC and IEEE Standards for Computer-Based Control Systems Important to Safety

    SciTech Connect

    Johnson, G.

    2001-12-19

    The collections of IEEE and 1EC standards have some overlap, but in many cases cover significantly different topics. For example, 1EEE standards go to great depth on environmental qualification of many specific types of components, while IEC covers the topic only at the general level. Conversely, certain IEC standards deal with specific instrumentation and control functions, a topic area where IEEE standards are largely mute. This paper studies two questions related to the above observations. Which standards in each body should be coordinated with each other? What opportunities exist for the two bodies to build on each other's standards to efficiently improve upon the coverage of their sets of standards? Poor coordination between the two sets of standards poses a problem for the developers of systems for plant upgrades. Developers must try to address both sets of standards to avail themselves of a sufficiently broad market. Additionally, the IEEE and IEC standards together form a more comprehensive set of guidance than either set alone. If the interfaces between the standard sets were smoother, plant staff and system designers would have a better set of tools to help in the design and specification of I and C upgrades. To understand the similarities and differences between 1EC and IEEE nuclear power standards layer diagrams were developed for each set of standards.

  6. IEEE 1547 National Standard for Interconnecting Distributed Generation: How Could It Help My Facility? Preprint

    SciTech Connect

    Basso, T.; Friedman, N. R.

    2003-11-01

    This article summarizes the purpose, development, and impact of the Institute of Electrical and Electronics Engineers 1547 Standard for Interconnecting Distributed Resources With Electric Power Systems. Also included is a short explanation of supporting standards IEEE P1547.1, P1547.2, and P1547.3.

  7. Evaluation of the Effects of Hidden Node Problems in IEEE 802.15.7 Uplink Performance.

    PubMed

    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.

  8. IEEE Radio and Wireless Symposium Student Awards Support Request: 2010-2012

    DTIC Science & Technology

    2012-01-01

    System for E-GSM900 and DCS1800 Cellular Phone Networks for Search and Rescue Applications, IEEE WiSNET (09 2011) A. Cagri Ulusoy , Gang Liu, Andreas...Receiver for Multi-Gigabit Wireless Communications Cagri Ulusoy *, Gang Liu*, Andreas Trasser*, S´ebastien Chartier# and Hermann Schumacher* Ulm University

  9. Proceedings of the International Congress/Actes du 6eme Congres International (6th) Held in Nice, France on 5-9 July 1993: Noise as a Public Health Problem. Volume 2

    DTIC Science & Technology

    1993-07-09

    Ear Hear.11, 93-105. Leonard G., Smurzynski J., Jung M.D., Kim D.O. (1990) Evaluation of distortion product otoacoustic emissions as a basis for the...de Fisica, Casilla 307, Santiago, Chile ""Hospital Mutual de Seguridad, Medicina del Trabajo ABSTRACT The aim of this investigation is to achieve a...ENVIRONMENT IN CHOOSING A PLACE OF RESIDENCE.’ LOPEZ BARRIO, Isabel; CARLES , Josi Luis Instituto de Acdstica (CSIC) Cl Serrano, 144. 28006 MADRID Abstract

  10. IEEE 802.16J-Relay Fortified Aeromacs Networks; Benefits and Challenges

    NASA Technical Reports Server (NTRS)

    Kamali, Behnam; Apaza, Rafael D.

    2014-01-01

    Aeronautical Mobile Airport Communications System (AeroMACS) is an IEEE 802.16 standard-based (WiMAX) broadband aviation transmission technology, developed to provide safety critical communications coverage for airport surface in support of fixed and mobile ground to ground applications and services. We have previously demonstrated that IEEE 802.16j-amendment-based WiMAX is most feasible for AeroMACS applications. The principal argument in favor of application of IEEE 802.16j technology is the flexible and cost effective extension of radio coverage that is afforded by relay fortified WiMAX networks, with virtually no increase in the power requirements. In this article, following introductory remarks on airport surface communications, WiMAX and AeroMACS; the IEEE 802.16j-based WiMAX technology and multihop relay systems are briefly described. The two modes of relay operation supported by IEEE 802.16j amendment; i.e., transparent (TRS) and non-transparent (NTRS) modes, are discussed in some detail. Advantages and disadvantages of using TRS and NTRS in AeroMACS networks are summarized in a table. Practical issues vis--vis the inclusion of relays in AeroMACS networks are addressed. It is argued that the selection of relay type may affect a number of network parameters. A discussion on specific benefits and challenges of inclusion of relays in AeroMACS networks is provided. The article concludes that in case it is desired or necessary to exclusively employ one type of relay mode for all applications throughout an AeroMACS network, the proper selection would be the non-transparent mode.

  11. Perspectives on development of IEEE 1073: the Medical Information Bus (MIB) standard.

    PubMed

    Kennelly, R J; Gardner, R M

    1997-08-01

    Automated data capture from bedside patient medical devices is now possible using a new Institute of Electrical and Electronic Engineering (IEEE) and American National Standards Institute (ANSI) Medical Information Bus (MIB) data communications standard (IEEE 1073). The first two standard documents, IEEE 1073.3.1 (Transportation Profile) and IEEE 1073.4.1 (Physical Layer), define the hardware protocol for bedside device communications. With the above noted IEEE MIB standards in place, hospitals can now start designing customized applications for acquiring data from bedside devices such as bedside monitors, i.v. pumps, ventilators, etc. for multiple purposes. The hardware 'plug and play' features of the MIB will enable nurses and physicians to establish communications with these devices simply and conveniently by plugging them into a bedside data connector. No other action will be necessary to establish identification of the device or communications with the device. Presently to connect bedside devices, technical help from hardware and software experts are required to establish such communications links. As a result of standardization of communications, it will be easy to establish a highly mobile network of bedside devices and more promptly and efficiently collect patient related data. Collection of data automatically should lead to the design of new medical computing applications that will tie in directly with the emerging mission and operations of hospitals. The MIB will permit acquisition of patient data more efficiently with greater accuracy, more completeness and more promptly. The above noted features are all essential to the development of computerized treatment protocols and should lead to improved quality of patient care. This manuscript provides the rational and historical overview of the development of the MIB standard.

  12. Creativity and Democratic Governance. Adult Learning: A Strategic Choice. Proceedings of the ICAE World Assembly (6th, Ocho Rios, Jamaica, August 9-12, 2001) = Creativite et Gouvernance Democratique. L'apprentissage des Adultes: Un Choix Strategique. Actes de la Assemblee Mondiale du CIEA (6th, Ocho Rios, Jamaique, 9 au 12 aout 2001) = Creatividad y Gobernabilidad Democratica. Educacion de Adultos: Una Eleccion Estrategica. Actas de la Asamblea Mundial del ICAE (6th, Ocho Rios, Jamaica, Agosto 9-12, 2001).

    ERIC Educational Resources Information Center

    Dobson, Stephan, Ed.

    This document contains information from and about a world assembly on creativity and democratic governance in adult learning that was held by the International Council for Adult Education (ICAE) and its partner organizations in the Caribbean. The proceedings begin with English, French, and Spanish translations of the address…

  13. Creativity and Democratic Governance. Adult Learning: A Strategic Choice. Proceedings of the ICAE World Assembly (6th, Ocho Rios, Jamaica, August 9-12, 2001) = Creativite et Gouvernance Democratique. L'apprentissage des Adultes: Un Choix Strategique. Actes de la Assemblee Mondiale du CIEA (6th, Ocho Rios, Jamaique, 9 au 12 aout 2001) = Creatividad y Gobernabilidad Democratica. Educacion de Adultos: Una Eleccion Estrategica. Actas de la Asamblea Mundial del ICAE (6th, Ocho Rios, Jamaica, Agosto 9-12, 2001).

    ERIC Educational Resources Information Center

    Dobson, Stephan, Ed.

    This document contains information from and about a world assembly on creativity and democratic governance in adult learning that was held by the International Council for Adult Education (ICAE) and its partner organizations in the Caribbean. The proceedings begin with English, French, and Spanish translations of the address…

  14. Quality Programs for Children and Families: Multiple Perspectives. Proceedings of the Annual Conference on Early Childhood Education (6th, Duluth, Minnesota, October 3-4, 1986).

    ERIC Educational Resources Information Center

    Sword, Jeane, Ed.

    Presented are the keynote address and sectional presentations made at a conference on early childhood education. Speakers offered various perspectives on high quality programs for children and families. The keynote address, given by Bettye Caldwell, concerned marketing quality programs for children, exploring internal and external deterrents,…

  15. Carbon fiber internal pressure vessels

    NASA Technical Reports Server (NTRS)

    Simon, R. A.

    1973-01-01

    Internal pressure vessels were designed; the filament was wound of carbon fibers and epoxy resin and tested to burst. The fibers used were Thornel 400, Thornel 75, and Hercules HTS. Additional vessels with type A fiber were made. Polymeric linears were used, and all burst testing was done at room temperature. The objective was to produce vessels with the highest attainable PbV/W efficiencies. The type A vessels showed the highest average efficiency: 2.56 x 10 to the 6th power cm. Next highest efficiency was with Thornel 400 vessels: 2.21 x 10 to the 6th power cm. These values compare favorably with efficiency values from good quality S-glass vessels, but strains averaged 0.97% or less, which is less than 1/3 the strain of S-glass vessels.

  16. FUTURE PERSPECTIVES IN MELANOMA RESEARCH. Meeting report from the “Melanoma Research: a bridge from Naples to the World. Napoli, December 5th–6 th2011”

    PubMed Central

    2012-01-01

    After more than 30 years, landmark progress has been made in the treatment of cancer, and melanoma in particular, with the success of new molecules such as ipilimumab, vemurafenib and active specific immunization. After the first congress in December 2010, the second edition of “Melanoma Research: a bridge from Naples to the World” meeting, organized by Paolo A. Ascierto (INT, Naples, Italy), Francesco M. Marincola (NIH, Bethesda, USA), and Nicola Mozzillo (INT, Naples, Italy) took place in Naples, on 5–6 December 2011. We have identified four new topics of discussion: Innovative Approaches in Prevention, Diagnosis and Surgical Treatment, New Pathways and Targets in Melanoma: An Update about Immunotherapy, and Combination Strategies. This international congress gathered more than 30 international faculty members and was focused on recent advances in melanoma molecular biology, immunology and therapy, and created an interactive atmosphere which stimulated discussion of new approaches and strategies in the field of melanoma. PMID:22551296

  17. Performance of the Sleep-Mode Mechanism of the New IEEE 802.16m Proposal for Correlated Downlink Traffic

    NASA Astrophysics Data System (ADS)

    de Turck, Koen; de Vuyst, Stijn; Fiems, Dieter; Wittevrongel, Sabine; Bruneel, Herwig

    There is a considerable interest nowadays in making wireless telecommunication more energy-efficient. The sleep-mode mechanism in WiMAX (IEEE 802.16e) is one of such energy saving measures. Recently, Samsung proposed some modifications on the sleep-mode mechanism, scheduled to appear in the forthcoming IEEE 802.16m standard, aimed at minimizing the signaling overhead. In this work, we present a performance analysis of this proposal and clarify the differences with the standard mechanism included in IEEE 802.16e. We also propose some special algorithms aimed at reducing the computational complexity of the analysis.

  18. Performance Evolution of IEEE 802.11b Wireless Local Area Network

    NASA Astrophysics Data System (ADS)

    Malik, Deepak; Singhal, Ankur

    2011-12-01

    The Wireless network can be employed to connect wired network to the wireless network. Wireless local area networks (WLAN) are more bandwidth limited as compared to the wired networks because they rely on an inexpensive, but error prone, physical medium (air). Hence it is important to evaluate their performance. This paper presents a study of IEEE 802.11b wireless LAN (WLAN). The performance evaluation has been presented via a series of test with different parameters such as data rate, different number of nodes and physical characteristics. The different qualities of service parameter are chosen to be throughput, media access delay and dropped data packets. The simulation results show that an IEEE 802.11b WLAN can support up to 60 clients with modest throughput. Finally the results are compared to evaluate the performance of wireless local networks.

  19. Integration of IEEE 1451 and HL7 Exchanging Information for Patients’ Sensor Data

    PubMed Central

    Lim, Suyoung; Ahn, Jinsoo; Nah, Jiyoung; Kim, Namhyun

    2009-01-01

    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. PMID:20703604

  20. A network architecture for precision formation flying using the IEEE 802.11 MAC Protocol

    NASA Technical Reports Server (NTRS)

    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.

  1. IEEE 1394 brings bandwidth, simplicity, and lower costs to machine vision and scientific imaging

    NASA Astrophysics Data System (ADS)

    Fife, Jerry

    2000-05-01

    Its official name is IEEE 1394. It is also called FireWireTM (by Apple) and i.LINKTM (by Sony who has licensed this name to several other companies). It was created in the late 1980s as a digital technology designed to satisfy the ever-increasing demand for communications bandwidth for video. It was also designed to simplify and reduce the number of cables and connectors between devices. Simple one-cable connectivity has become a necessity brought about by miniaturization and increasing device functionality as ports have reduced in size and number. The IEEE 1394 high performance serial bus has already found its way into consumer products and one day probably will link every digital appliance in the house: TV, DVR, camcorder, hi-fi stereo, computers and peripherals. Now it's poised to make the same impact in the industrial/scientific imaging world.

  2. Location Error Detection and Compensation for IEEE 802.15.4a Networks in Indoor Environments

    NASA Astrophysics Data System (ADS)

    Kong, Youngbae; Kim, Junseok; Kwon, Younggoo; Park, Gwitae

    IEEE 802.15.4a standard enables location-aided routing or topology control in ZigBee networks, since it uses time-of-arrival (TOA)-based ranging technique. However, TOA based techniques may yield location error due to the non-line-of-sight (NLOS) effects, and hence degrade the network performance. In this letter, we demonstrate the impact of NLOS on the localization performance and propose a location error detection and compensation algorithm for IEEE 802.15.4a networks. The proposed algorithm detects NLOS by using the min-max algorithm and compensates the location error by using the Kalman filter. Experimental results show that the proposed algorithm significantly reduces the localization errors in indoor environments.

  3. A Novel IEEE 802.15.4e DSME MAC for Wireless Sensor Networks

    PubMed Central

    Sahoo, Prasan Kumar; Pattanaik, Sudhir Ranjan; Wu, Shih-Lin

    2017-01-01

    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. PMID:28275216

  4. A nomadic access mechanism for enabling dynamic video surveillance over IEEE 802.15.4 networks

    NASA Astrophysics Data System (ADS)

    Garcia-Sanchez, Felipe; Garcia-Sanchez, Antonio-Javier; Losilla, Fernando; Garcia-Haro, Joan

    2010-12-01

    IEEE 802.15.4 networking technology is designed to be the common standard for integrating WSN applications in heterogeneous environments. However, applications considering mobile nodes along with strict temporal requirements, such as those required for video transmission, are an unexplored field for this technology. These applications involve different challenges and issues that the direct employment of the IEEE 802.15.4 standard does not resolve. Therefore, in this paper a cross-layer mechanism consisting of application and medium access arbitration is presented, enabling the efficient connection and operation of mobile nodes together with the transmission of video flows. The proposed mechanism is evaluated via simulation and its feasibility checked by means of a first prototype. The study of power consumption is also taken into account and so are the quality of service parameters and the human quality perception of the received video stream. The results obtained are presented and further discussed.

  5. Performance analysis of IEEE 802.11n network under unsaturated conditions

    NASA Astrophysics Data System (ADS)

    Lang, Gaiping; Ma, Lin; Xu, Yubin

    2017-07-01

    Frame aggregation is the most important medium access control (MAC) enhancement of IEEE 802.11n. In frame aggregation, multiple frames are encapsulated into a single frame. In the analysis of 802.11n performance, the existing researches assumed that each station always had a packet for transmission. But actually, sometimes stations may have no packet to transmit. In this paper, we develop an analytical model for IEEE 802.11n in unsaturated conditions. Therefore, the transmission of the station is assumed to be a bulk service queue system. Bulk size is aggregation size. According to the 802.11n standard, when the number of packets in the buffer is smaller than the aggregation size, we can also transmit all the packets in the buffer using A-MPDU. Therefore, bulk size is variable. The throughput and mean access delay are achieved. Numerical results show that the proposed algorithm can effectively increase the throughput and lower the access delay.

  6. Integration of IEEE 1451 and HL7 exchanging information for patients' sensor data.

    PubMed

    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.

    PubMed

    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. A Novel IEEE 802.15.4e DSME MAC for Wireless Sensor Networks.

    PubMed

    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.

  9. 2008 Special NSREC Issue of the IEEE Transactions on Nuclear Science Comments by the Editors

    NASA Astrophysics Data System (ADS)

    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.

  10. Sensor Networking Testbed with IEEE 1451 Compatibility and Network Performance Monitoring

    NASA Technical Reports Server (NTRS)

    Gurkan, Deniz; Yuan, X.; Benhaddou, D.; Figueroa, F.; Morris, Jonathan

    2007-01-01

    Design and implementation of a testbed for testing and verifying IEEE 1451-compatible sensor systems with network performance monitoring is of significant importance. The performance parameters measurement as well as decision support systems implementation will enhance the understanding of sensor systems with plug-and-play capabilities. The paper will present the design aspects for such a testbed environment under development at University of Houston in collaboration with NASA Stennis Space Center - SSST (Smart Sensor System Testbed).

  11. An NTP Stratum-One Server Farm Fed By IEEE-1588

    DTIC Science & Technology

    2010-01-01

    42 nd Annual Precise Time and Time Interval (PTTI) Meeting 111 AN NTP STRATUM-ONE SERVER FARM FED BY IEEE-1588 Richard E...Schmidt and Blair Fonville Time Service Department, U.S. Naval Observatory 3450 Massachusetts Ave. NW, Washington, D.C. 20392, USA rich.schmidt...usno.navy.mil, blair.fonville@usno.navy.mil Abstract For the past 16 years, USNO’s Network Time Protocol (NTP) stratum-1 servers have been

  12. Neural Networks for Signal Processing VII Proceeding of the 1997 IEEE Workshop

    DTIC Science & Technology

    1998-06-08

    June 98 REPORT TYPE AND DATES COVERED Final \\^Q\\ Cf\\ - M DteC ^ TITLE AND SUBTITLE Neural Networks for Signal Processing VII Proceeding...C^ mm m 13, ABSTRACT (Maximum 200 words) NNSP󈨥 was held in Amelia Island Plantation, Amelia Island, Florida, September 24-26.1997. NNSP󈨥 was...1997 IEEE WORKSHOP Edited by Jose Principe Lee Gile Nelson Morgan Elizabeth Wilson l^J m NEURAL NETWORKS H»«lf FOR SIGNAL PROCESSING VII

  13. [Mobile Health: IEEE Standard for Wearable Cuffless Blood Pressure Measuring Devices].

    PubMed

    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.

  14. Interpretation of IEEE-854 floating-point standard and definition in the HOL system

    NASA Technical Reports Server (NTRS)

    Carreno, Victor A.

    1995-01-01

    The ANSI/IEEE Standard 854-1987 for floating-point arithmetic is interpreted by converting the lexical descriptions in the standard into mathematical conditional descriptions organized in tables. The standard is represented in higher-order logic within the framework of the HOL (Higher Order Logic) system. The paper is divided in two parts with the first part the interpretation and the second part the description in HOL.

  15. An IEEE802.15.4-Based System for Locating Children on Their School Commutes

    NASA Astrophysics Data System (ADS)

    Sugiura, Akihiko; Baba, Ryoichi; Kobayashi, Hideyuki

    With the increasing number of crimes and accidents in which children are becoming involved, there is a growing demand for devices to safeguard children's security by detecting their locations on their way to and from school. This paper proposes a system that uses an IEEE802.15.4-standard network to detect children's locations. To overcome the susceptibility of radio interference from nearby wireless LANs, frequency division multiplexing is applied to this IEEE802.15.4-based network, toward improving data acquisition from terminal units. The effectiveness of the system was field-tested with elementary school students who used about 400 IEEE 802.15.4-compliant terminal units. An experiment verified that the use of frequency division multiplexing in an environment where radio interference by wireless LANs is strong allowed the network to double the success rate of information communication from terminal units relative to that without frequency division multiplexing. In the experiment for detecting elementary schoolers' arrival at and departure from school, the terminal detection rate was 99% and the terminal detection rate on the designated school routes was 90%. These results prove the effectiveness of the system in detecting locations.

  16. FPGA implementation cost and performance evaluation of IEEE 802.11 protocol encryption security schemes

    NASA Astrophysics Data System (ADS)

    Sklavos, N.; Selimis, G.; Koufopavlou, O.

    2005-01-01

    The explosive growth of internet and consumer demand for mobility has fuelled the exponential growth of wireless communications and networks. Mobile users want access to services and information, from both internet and personal devices, from a range of locations without the use of a cable medium. IEEE 802.11 is one of the most widely used wireless standards of our days. The amount of access and mobility into wireless networks requires a security infrastructure that protects communication within that network. The security of this protocol is based on the wired equivalent privacy (WEP) scheme. Currently, all the IEEE 802.11 market products support WEP. But recently, the 802.11i working group introduced the advanced encryption standard (AES), as the security scheme for the future IEEE 802.11 applications. In this paper, the hardware integrations of WEP and AES are studied. A field programmable gate array (FPGA) device has been used as the hardware implementation platform, for a fair comparison between the two security schemes. Measurements for the FPGA implementation cost, operating frequency, power consumption and performance are given.

  17. Segmentized Clear Channel Assessment for IEEE 802.15.4 Networks

    PubMed Central

    Son, Kyou Jung; Hong, Sung Hyeuck; Moon, Seong-Pil; Chang, Tae Gyu; Cho, Hanjin

    2016-01-01

    This paper proposed segmentized clear channel assessment (CCA) which increases the performance of IEEE 802.15.4 networks by improving carrier sense multiple access with collision avoidance (CSMA/CA). Improving CSMA/CA is important because the low-power consumption feature and throughput performance of IEEE 802.15.4 are greatly affected by CSMA/CA behavior. To improve the performance of CSMA/CA, this paper focused on increasing the chance to transmit a packet by assessing precise channel status. The previous method used in CCA, which is employed by CSMA/CA, assesses the channel by measuring the energy level of the channel. However, this method shows limited channel assessing behavior, which comes from simple threshold dependent channel busy evaluation. The proposed method solves this limited channel decision problem by dividing CCA into two groups. Two groups of CCA compare their energy levels to get precise channel status. To evaluate the performance of the segmentized CCA method, a Markov chain model has been developed. The validation of analytic results is confirmed by comparing them with simulation results. Additionally, simulation results show the proposed method is improving a maximum 8.76% of throughput and decreasing a maximum 3.9% of the average number of CCAs per packet transmission than the IEEE 802.15.4 CCA method. PMID:27271626

  18. Interoperability in digital electrocardiography: harmonization of ISO/IEEE x73-PHD and SCP-ECG.

    PubMed

    Trigo, Jesús D; Chiarugi, Franco; Alesanco, Alvaro; Martínez-Espronceda, Miguel; Serrano, Luis; Chronaki, Catherine E; Escayola, Javier; Martínez, Ignacio; García, José

    2010-11-01

    The ISO/IEEE 11073 (x73) family of standards is a reference frame for medical device interoperability. A draft for an ECG device specialization (ISO/IEEE 11073-10406-d02) has already been presented to the Personal Health Device (PHD) Working Group, and the Standard Communications Protocol for Computer-Assisted ElectroCardioGraphy (SCP-ECG) Standard for short-term diagnostic ECGs (EN1064:2005+A1:2007) has recently been approved as part of the x73 family (ISO 11073-91064:2009). These factors suggest the coordinated use of these two standards in foreseeable telecardiology environments, and hence the need to harmonize them. Such harmonization is the subject of this paper. Thus, a mapping of the mandatory attributes defined in the second draft of the ISO/IEEE 11073-10406-d02 and the minimum SCP-ECG fields is presented, and various other capabilities of the SCP-ECG Standard (such as the messaging part) are also analyzed from an x73-PHD point of view. As a result, this paper addresses and analyzes the implications of some inconsistencies in the coordinated use of these two standards. Finally, a proof-of-concept implementation of the draft x73-PHD ECG device specialization is presented, along with the conversion from x73-PHD to SCP-ECG. This paper, therefore, provides recommendations for future implementations of telecardiology systems that are compliant with both x73-PHD and SCP-ECG.

  19. Segmentized Clear Channel Assessment for IEEE 802.15.4 Networks.

    PubMed

    Son, Kyou Jung; Hong, Sung Hyeuck; Moon, Seong-Pil; Chang, Tae Gyu; Cho, Hanjin

    2016-06-03

    This paper proposed segmentized clear channel assessment (CCA) which increases the performance of IEEE 802.15.4 networks by improving carrier sense multiple access with collision avoidance (CSMA/CA). Improving CSMA/CA is important because the low-power consumption feature and throughput performance of IEEE 802.15.4 are greatly affected by CSMA/CA behavior. To improve the performance of CSMA/CA, this paper focused on increasing the chance to transmit a packet by assessing precise channel status. The previous method used in CCA, which is employed by CSMA/CA, assesses the channel by measuring the energy level of the channel. However, this method shows limited channel assessing behavior, which comes from simple threshold dependent channel busy evaluation. The proposed method solves this limited channel decision problem by dividing CCA into two groups. Two groups of CCA compare their energy levels to get precise channel status. To evaluate the performance of the segmentized CCA method, a Markov chain model has been developed. The validation of analytic results is confirmed by comparing them with simulation results. Additionally, simulation results show the proposed method is improving a maximum 8.76% of throughput and decreasing a maximum 3.9% of the average number of CCAs per packet transmission than the IEEE 802.15.4 CCA method.

  20. On IEEE 802.15.6 IR-UWB receivers - simulations for DBPSK modulation.

    PubMed

    Niemelä, Ville; Hämäläinen, Matti; Iinatti, Jari

    2013-01-01

    In 2002, Federal Communications Commission (FCC) was the first in defining regulations for ultra wideband (UWB) communications followed by Europe and Japan some years later. Focusing on impulse radio (IR) UWB, in 2007 was the time for the first published standard targeting in personal area networks, released by the IEEE. The second IEEE released standard including UWB definitions is targeted for wireless body area networks (WBAN) and was published in 2012. As the wireless communications has been and will be passing through almost any levels in society, the natural step with WBAN is using it in different medical, healthcare and wellbeing applications. The arguments for these are related to the modern lifestyle, in which people have increasingly more free time and are more interested in taking care of their health and wellbeing. Another challenge is the population composition, i.e., aging in developed countries which call for new solutions and procedures, particularly from cost wise. In this paper, we are evaluating UWB receivers based on the IEEE 802.15.6 physical layer definitions and capable of detecting differentially encoded modulation. The evaluation is performed using two different WBAN channel models.

  1. Study on additional carrier sensing for IEEE 802.15.4 wireless sensor networks.

    PubMed

    Lee, Bih-Hwang; Lai, Ruei-Lung; Wu, Huai-Kuei; Wong, Chi-Ming

    2010-01-01

    Wireless sensor networks based on the IEEE 802.15.4 standard are able to achieve low-power transmissions in the guise of low-rate and short-distance wireless personal area networks (WPANs). The slotted carrier sense multiple access with collision avoidance (CSMA/CA) is used for contention mechanism. Sensor nodes perform a backoff process as soon as the clear channel assessment (CCA) detects a busy channel. In doing so they may neglect the implicit information of the failed CCA detection and further cause the redundant sensing. The blind backoff process in the slotted CSMA/CA will cause lower channel utilization. This paper proposes an additional carrier sensing (ACS) algorithm based on IEEE 802.15.4 to enhance the carrier sensing mechanism for the original slotted CSMA/CA. An analytical Markov chain model is developed to evaluate the performance of the ACS algorithm. Both analytical and simulation results show that the proposed algorithm performs better than IEEE 802.15.4, which in turn significantly improves throughput, average medium access control (MAC) delay and power consumption of CCA detection.

  2. Strategies for Optimal MAC Parameters Tuning in IEEE 802.15.6 Wearable Wireless Sensor Networks.

    PubMed

    Alam, Muhammad Mahtab; Ben Hamida, Elyes

    2015-09-01

    Wireless body area networks (WBAN) has penetrated immensely in revolutionizing the classical heath-care system. Recently, number of WBAN applications has emerged which introduce potential limits to existing solutions. In particular, IEEE 802.15.6 standard has provided great flexibility, provisions and capabilities to deal emerging applications. In this paper, we investigate the application-specific throughput analysis by fine-tuning the physical (PHY) and medium access control (MAC) parameters of the IEEE 802.15.6 standard. Based on PHY characterizations in narrow band, at the MAC layer, carrier sense multiple access collision avoidance (CSMA/CA) and scheduled access protocols are extensively analyzed. It is concluded that, IEEE 802.15.6 standard can satisfy most of the WBANs applications throughput requirements by maximum achieving 680 Kbps. However, those emerging applications which require high quality audio or video transmissions, standard is not able to meet their constraints. Moreover, delay, energy efficiency and successful packet reception are considered as key performance metrics for comparing the MAC protocols. CSMA/CA protocol provides the best results to meet the delay constraints of medical and non-medical WBAN applications. Whereas, the scheduled access approach, performs very well both in energy efficiency and packet reception ratio.

  3. A versatile electrical penetration design qualified to IEEE Std. 317-1983

    SciTech Connect

    Lankenau, W.; Wetherill, T.M.

    1994-12-31

    Although worldwide demand for new construction of nuclear power stations has been on a decline, the available opportunities for the design and construction of qualified electrical penetrations continues to offer challenges, requiring a highly versatile design. Versatility is necessary in order to meet unique customer requirements within the constraints of a design basis qualified to IEEE Std. 317-1983. This paper summarizes such a versatile electrical penetration designed, built and tested to IEEE Std. 317-1983. The principal features are described including major materials of construction. Some of the design constraints such as sealing requirements, and conductor density (including numerical example) are discussed. The requirements for qualification testing of the penetration assembly to IEEE Std. 317-1983 are delineated in a general sense, and some typical test ranges for preconditioning, radiation exposure, and LOCA are provided. The paper concludes by describing ways in which this versatile design has been adapted to meet unique customer requirements in a variety of nuclear power plants.

  4. Experimental Investigation of the Mechanical Behavior of a Filled Elastomer at Pressures Below 10 to the -6th Power Torr. Ph.D. Thesis - Va. Polytechnic Inst.

    NASA Technical Reports Server (NTRS)

    Gregory, G. L.

    1972-01-01

    The mechanical behavior of a filled elastomer was studied with emphasis on understanding the vacuum-material interactions occurring, and to develop analytical techniques for predicting the vacuum behavior. The test results indicate that two separate mechanisms are involved in the observed property changes: the first controls the time response to applied stress; the second determines the initial internal state of the materials as the result of stresses. It is concluded that the mechanical property changes are attributable to changes in the relaxation processes occurring in the material. These changes are brought about by outgassing of water. Recommendations for future investigations are included.

  5. Telemonitoring systems interoperability challenge: an updated review of the applicability of ISO/IEEE 11073 standards for interoperability in telemonitoring.

    PubMed

    Galarraga, M; Serrano, L; Martinez, I; de Toledo, P; Reynolds, Melvin

    2007-01-01

    Advances in Information and Communication Technologies, ICT, are bringing new opportunities and use cases in the field of systems and Personal Health Devices used for the telemonitoring of citizens in Home or Mobile scenarios. At a time of such challenges, this review arises from the need to identify robust technical telemonitoring solutions that are both open and interoperable. These systems demand standardized solutions to be cost effective and to take advantage of standardized operation and interoperability. Thus, the fundamental challenge is to design plug-&-play devices that, either as individual elements or as components, can be incorporated in a simple way into different Telecare systems, perhaps configuring a personal user network. Moreover, there is an increasing market pressure from companies not traditionally involved in medical markets, asking for a standard for Personal Health Devices, which foresee a vast demand for telemonitoring, wellness, Ambient Assisted Living (AAL) and e-health applications. However, the newly emerging situations imply very strict requirements for the protocols involved in the communication. The ISO/IEEE 11073 family of standards is adapting and moving in order to face the challenge and might appear the best positioned international standards to reach this goal. This work presents an updated survey of these standards, trying to track the changes that are being fulfilled, and tries to serve as a starting-point for those who want to familiarize themselves with them.

  6. A Fault Signature Characterization Based Analog Circuit Testing Scheme and the Extension of IEEE 1149.4 Standard

    NASA Astrophysics Data System (ADS)

    San-Um, Wimol; Tachibana, Masayoshi

    An analog circuit testing scheme is presented. The testing technique is a sinusoidal fault signature characterization, involving the measurement of DC offset, amplitude, frequency and phase shift, and the realization of two crossing level voltages. The testing system is an extension of the IEEE 1149.4 standard through the modification of an analog boundary module, affording functionalities for both on-chip testing capability, and accessibility to internal components for off-chip testing. A demonstrating circuit-under-test, a 4th-order Gm-C low-pass filter, and the proposed analog testing scheme are implemented in a physical level using 0.18-µm CMOS technology, and simulated using Hspice. Both catastrophic and parametric faults are potentially detectable at the minimum parameter variation of 0.5%. The fault coverage associated with CMOS transconductance operational amplifiers and capacitors are at 94.16% and 100%, respectively. This work offers the enhancement of standardizing test approach, which reduces the complexity of testing circuit and provides non-intrusive analog circuit testing.

  7. Test Methodology for Characterizing the SEE Sensitivity of a Commercial IEEE 1394 Serial Bus (FireWire)

    NASA Technical Reports Server (NTRS)

    Seidleck, C.; Kim, H.; Buchner, S.; Marshall, P. W.; LaBel, K.; Day, John H. (Technical Monitor)

    2002-01-01

    The Single Event Effect (SEE) responses of two FireWire serial buses based on the IEEE 1394 standard were tested with heavy ions and protons. A unique approach to testing and categorizing the SEEs is presented.

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

    Cancer.gov

    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.

  9. Implementation of DoS attack and mitigation strategies in IEEE 802.11b/g WLAN

    NASA Astrophysics Data System (ADS)

    Deng, Julia; Meng, Ke; Xiao, Yang; Xu, Roger

    2010-04-01

    IEEE 802.11 wireless Local Area Network (WLAN) becomes very prevalent nowadays. Either as a simple range extender for a home wired Ethernet interface, or as a wireless deployment throughout an enterprise, WLAN provides mobility, convenience, and low cost. However, an IEEE 802.11b/g wireless network uses the frequency of unlicensed 2.4GHz, which makes the network unsafe and more vulnerable than traditional Ethernet networks. As a result, anyone who is familiar with wireless network may initiate a Denial of Service (DoS) attack to influence the common communication of the network or even make it crash. In this paper, we present our studies on the DoS attacks and mitigation strategies for IEEE 802.11b/g WLANs and describe some initial implementations using IEEE 802.11b/g wireless devices.

  10. Status report on hypertension in Africa - Consultative review for the 6th Session of the African Union Conference of Ministers of Health on NCD's

    PubMed Central

    van de Vijver, Steven; Akinyi, Hilda; Oti, Samuel; Olajide, Ademola; Agyemang, Charles; Aboderin, Isabella; Kyobutungi, Catherine

    2013-01-01

    Hypertension has always been regarded as a disease of affluence but this has changed drastically in the last two decades with average blood pressures now higher in Africa than in Europe and USA and the prevalence increasing among poor sections of society. We have conducted a literature search on PubMed on a broad range of topics regarding hypertension in Africa, including data collection from related documents from World Health Organization and other relevant organizations that are available in this field. We have shared the initial results and drafts with international specialists in the context of hypertension in Africa and incorporated their feedback. Hypertension is the number one risk factor for CVD in Africa. Consequently, cardiovascular disease (CVD) has taken over as number one cause of death in Africa and the total numbers will further increase in the next decades reflecting on the growing urbanization and related lifestyle changes. The new epidemic of hypertension and CVD is not only an important public health problem, but it will also have a big economic impact as a significant proportion of the productive population becomes chronically ill or die, leaving their families in poverty. It is essential to develop and share best practices for affordable and effective community-based programs in screening and treatment of hypertension. In order to prevent and control hypertension in the population, Africa needs policies developed and implemented through a multi-sectoral approach involving the Ministries of Health and other sectors including education, agriculture, transport, finance among others. PMID:24570798

  11. A Randomized Controlled Pilot Trial of Classroom-Based Mindfulness Meditation Compared to an Active Control Condition in 6th Grade Children

    PubMed Central

    Britton, Willoughby B.; Lepp, Nathaniel E.; Niles, Halsey F.; Rocha, Tomas; Fisher, Nathan; Gold, Jonathan

    2014-01-01

    Children in the United States are at risk for numerous psychological problems, such as anxiety, attention problems, and mood disorders, and are underserved by current mental health provisions. The current study is a pilot trial to examine the effects of a nonelective, classroom-based, teacher-implemented, mindfulness meditation intervention on standard clinical measures of mental health and affect in middle school children. A total of 101 healthy sixth-grade students (55 boys and 46 girls) were randomized to either an Asian history course with daily mindfulness meditation practice (intervention group) or an African history course with a matched experiential activity (active control group). Self-reported data was collected by administering the Youth Self Report (YSR), a modified Spielberger State-Trait Anxiety Inventory, and the Cognitive and Affective Mindfulness Measure -Revised before and after 6 weeks of meditation or active control condition. Both meditators and active controls decreased significantly on the YSR Internalizing Problems, Externalizing Problems, and Attention Problems subscales but did not differ in the extent of their improvements. Both groups also showed comparable improvements on measures in affect. Meditators were significantly less likely to develop suicidal ideation or thoughts of self-harm than controls. Improvements in affect were correlated with increases in mindfulness in meditators but not controls. These results suggest that mindfulness training may yield both unique and nonspecific benefits that are shared by other novel activities. PMID:24930819

  12. Status report on hypertension in Africa--consultative review for the 6th Session of the African Union Conference of Ministers of Health on NCD's.

    PubMed

    van de Vijver, Steven; Akinyi, Hilda; Oti, Samuel; Olajide, Ademola; Agyemang, Charles; Aboderin, Isabella; Kyobutungi, Catherine

    2013-01-01

    Hypertension has always been regarded as a disease of affluence but this has changed drastically in the last two decades with average blood pressures now higher in Africa than in Europe and USA and the prevalence increasing among poor sections of society. We have conducted a literature search on PubMed on a broad range of topics regarding hypertension in Africa, including data collection from related documents from World Health Organization and other relevant organizations that are available in this field. We have shared the initial results and drafts with international specialists in the context of hypertension in Africa and incorporated their feedback. Hypertension is the number one risk factor for CVD in Africa. Consequently, cardiovascular disease (CVD) has taken over as number one cause of death in Africa and the total numbers will further increase in the next decades reflecting on the growing urbanization and related lifestyle changes. The new epidemic of hypertension and CVD is not only an important public health problem, but it will also have a big economic impact as a significant proportion of the productive population becomes chronically ill or die, leaving their families in poverty. It is essential to develop and share best practices for affordable and effective community-based programs in screening and treatment of hypertension. In order to prevent and control hypertension in the population, Africa needs policies developed and implemented through a multi-sectoral approach involving the Ministries of Health and other sectors including education, agriculture, transport, finance among others.

  13. DoS detection in IEEE 802.11 with the presence of hidden nodes

    PubMed Central

    Soryal, Joseph; Liu, Xijie; Saadawi, Tarek

    2013-01-01

    The paper presents a novel technique to detect Denial of Service (DoS) attacks applied by misbehaving nodes in wireless networks with the presence of hidden nodes employing the widely used IEEE 802.11 Distributed Coordination Function (DCF) protocols described in the IEEE standard [1]. Attacker nodes alter the IEEE 802.11 DCF firmware to illicitly capture the channel via elevating the probability of the average number of packets transmitted successfully using up the bandwidth share of the innocent nodes that follow the protocol standards. We obtained the theoretical network throughput by solving two-dimensional Markov Chain model as described by Bianchi [2], and Liu and Saadawi [3] to determine the channel capacity. We validated the results obtained via the theoretical computations with the results obtained by OPNET simulator [4] to define the baseline for the average attainable throughput in the channel under standard conditions where all nodes follow the standards. The main goal of the DoS attacker is to prevent the innocent nodes from accessing the channel and by capturing the channel’s bandwidth. In addition, the attacker strives to appear as an innocent node that follows the standards. The protocol resides in every node to enable each node to police other nodes in its immediate wireless coverage area. All innocent nodes are able to detect and identify the DoS attacker in its wireless coverage area. We applied the protocol to two Physical Layer technologies: Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS) and the results are presented to validate the algorithm. PMID:25685510

  14. DoS detection in IEEE 802.11 with the presence of hidden nodes.

    PubMed

    Soryal, Joseph; Liu, Xijie; Saadawi, Tarek

    2014-07-01

    The paper presents a novel technique to detect Denial of Service (DoS) attacks applied by misbehaving nodes in wireless networks with the presence of hidden nodes employing the widely used IEEE 802.11 Distributed Coordination Function (DCF) protocols described in the IEEE standard [1]. Attacker nodes alter the IEEE 802.11 DCF firmware to illicitly capture the channel via elevating the probability of the average number of packets transmitted successfully using up the bandwidth share of the innocent nodes that follow the protocol standards. We obtained the theoretical network throughput by solving two-dimensional Markov Chain model as described by Bianchi [2], and Liu and Saadawi [3] to determine the channel capacity. We validated the results obtained via the theoretical computations with the results obtained by OPNET simulator [4] to define the baseline for the average attainable throughput in the channel under standard conditions where all nodes follow the standards. The main goal of the DoS attacker is to prevent the innocent nodes from accessing the channel and by capturing the channel's bandwidth. In addition, the attacker strives to appear as an innocent node that follows the standards. The protocol resides in every node to enable each node to police other nodes in its immediate wireless coverage area. All innocent nodes are able to detect and identify the DoS attacker in its wireless coverage area. We applied the protocol to two Physical Layer technologies: Direct Sequence Spread Spectrum (DSSS) and Frequency Hopping Spread Spectrum (FHSS) and the results are presented to validate the algorithm.

  15. The ac power line protection for an IEEE 587 Class B environment

    NASA Technical Reports Server (NTRS)

    Roehr, W. D.; Clark, O. M.

    1984-01-01

    The 587B series of protectors are unique, low clamping voltage transient suppressors to protect ac-powered equipment from the 6000V peak open-circuit voltage and 3000A short circuit current as defined in IEEE standard 587 for Category B transients. The devices, which incorporate multiple-stage solid-state protector components, were specifically designed to operate under multiple exposures to maximum threat levels in this severe environment. The output voltage peaks are limited to 350V under maximum threat conditions for a 120V ac power line, thus providing adequate protection to vulnerable electronic equipment. The principle of operation and test performance data is discussed.

  16. Suitability of the IEEE 802.15.4e Extensions for Spacecraft and Launcher Communications

    NASA Astrophysics Data System (ADS)

    Dallemagne, Ph.; Decotignie, J.-D.; Piguet, D.; Pelissou, P.; Patte, M.; Dufour, J.-F.

    2014-08-01

    Spacecraft currently use wires to support communication between sensors, controllers and actuators. Replacing the wires by wireless networks is appealing for a number of reasons. This paper presents an analysis of recent extensions to the wireless standard IEEE 802.15.4 as a possible solution to support robust and timely wireless communications inside and between spacecraft. In particular, it shows that with proper tuning and adaptation of the retransmission protocol, it can be used to increase the robustness and determinism of the wireless link.

  17. Impact of electric vehicles on the IEEE 34 node distribution infrastructure

    DOE PAGES

    Jiang, Zeming; Shalalfel, Laith; Beshir, Mohammed J.

    2014-10-01

    With the growing penetration of the electric vehicles to our daily life owing to their economic and environmental benefits, there will be both opportunities and challenges to the utilities when adopting plug-in electric vehicles (PEV) to the distribution network. In this study, a thorough analysis based on real-world project is conducted to evaluate the impacts of electric vehicles infrastructure on the grid relating to system load flow, load factor, and voltage stability. IEEE 34 node test feeder was selected and tested along with different case scenarios utilizing the electrical distribution design (EDD) software to find out the potential impacts tomore » the grid.« less

  18. Impact of electric vehicles on the IEEE 34 node distribution infrastructure

    SciTech Connect

    Jiang, Zeming; Shalalfel, Laith; Beshir, Mohammed J.

    2014-10-01

    With the growing penetration of the electric vehicles to our daily life owing to their economic and environmental benefits, there will be both opportunities and challenges to the utilities when adopting plug-in electric vehicles (PEV) to the distribution network. In this study, a thorough analysis based on real-world project is conducted to evaluate the impacts of electric vehicles infrastructure on the grid relating to system load flow, load factor, and voltage stability. IEEE 34 node test feeder was selected and tested along with different case scenarios utilizing the electrical distribution design (EDD) software to find out the potential impacts to the grid.

  19. The ac power line protection for an IEEE 587 Class B environment

    NASA Technical Reports Server (NTRS)

    Roehr, W. D.; Clark, O. M.

    1984-01-01

    The 587B series of protectors are unique, low clamping voltage transient suppressors to protect ac-powered equipment from the 6000V peak open-circuit voltage and 3000A short circuit current as defined in IEEE standard 587 for Category B transients. The devices, which incorporate multiple-stage solid-state protector components, were specifically designed to operate under multiple exposures to maximum threat levels in this severe environment. The output voltage peaks are limited to 350V under maximum threat conditions for a 120V ac power line, thus providing adequate protection to vulnerable electronic equipment. The principle of operation and test performance data is discussed.

  20. Deployment of Directory Service for IEEE N Bus Test System Information

    NASA Astrophysics Data System (ADS)

    Barman, Amal; Sil, Jaya

    2008-10-01

    Exchanging information over Internet and Intranet becomes a defacto standard in computer applications, among various users and organizations. Distributed system study, e-governance etc require transparent information exchange between applications, constituencies, manufacturers, and vendors. To serve these purposes database system is needed for storing system data and other relevant information. Directory service, which is a specialized database along with access protocol, could be the single solution since it runs over TCP/IP, supported by all POSIX compliance platforms and is based on open standard. This paper describes a way to deploy directory service, to store IEEE n bus test system data and integrating load flow program with it.

  1. A Novel Energy Saving Algorithm with Frame Response Delay Constraint in IEEE 802.16e

    NASA Astrophysics Data System (ADS)

    Nga, Dinh Thi Thuy; Kim, Mingon; Kang, Minho

    Sleep-mode operation of a Mobile Subscriber Station (MSS) in IEEE 802.16e effectively saves energy consumption; however, it induces frame response delay. In this letter, we propose an algorithm to quickly find the optimal value of the final sleep interval in sleep-mode in order to minimize energy consumption with respect to a given frame response delay constraint. The validations of our proposed algorithm through analytical results and simulation results suggest that our algorithm provide a potential guidance to energy saving.

  2. Adaptive rate selection scheme for video transmission to resolve IEEE 802.11 performance anomaly

    NASA Astrophysics Data System (ADS)

    Tang, Guijin; Zhu, Xiuchang

    2011-10-01

    Multi-rate transmission may lead to performance anomaly in an IEEE 802.11 network. It will decrease the throughputs of all the higher rate stations. This paper proposes an adaptive rate selection scheme for video service when performance anomaly occurs. Considering that video has the characteristic of tolerance to packet loss, we actively drop several packets so as to select the rates as high as possible for transmitting packets. Experiment shows our algorithm can decrease the delay and jitter of video, and improve the system throughput as well.

  3. Distributed Fair Access Point Selection for Multi-Rate IEEE 802.11 WLANs

    NASA Astrophysics Data System (ADS)

    Gong, Huazhi; Nahm, Kitae; Kim, Jongwon

    In IEEE 802.11 networks, the access point (AP) selection based on the strongest signal strength often results in the extremely unfair bandwidth allocation among mobile users (MUs). In this paper, we propose a distributed AP selection algorithm to achieve a fair bandwidth allocation for MUs. The proposed algorithm gradually balances the AP loads based on max-min fairness for the available multiple bit rate choices in a distributed manner. We analyze the stability and overhead of the proposed algorithm, and show the improvement of the fairness via computer simulation.

  4. Rate Adaptation Based on Collision Probability for IEEE 802.11 WLANs

    NASA Astrophysics Data System (ADS)

    Kim, Taejoon; Lim, Jong-Tae

    Nowadays IEEE 802.11 wireless local area networks (WLANs) support multiple transmission rates. To achieve the best performance, transmitting stations adopt the various forms of automatic rate fallback (ARF). However, ARF suffers from severe performance degradation as the number of transmitting stations increases. In this paper, we propose a new rate adaptation scheme which adjusts the ARF's up/down threshold according to the channel contention level. Simulation result shows that the proposed scheme achieves fairly good performance compared with the existing schemes.

  5. Acquisition of Diagnostic Screen and Synchrotron Radiation Images Using IEEE1394 Digital Cameras

    NASA Astrophysics Data System (ADS)

    Rehm, G.

    2004-11-01

    In the LINAC, booster synchrotron and transfer lines of DIAMOND a number of screens (YAG:Ce and OTR) as well as synchrotron radiation ports will be used to acquire information about the transverse beam distribution. Digital IEEE1394 cameras have been selected for their range of sensor sizes and resolutions available, their easy triggering to single events, and their noise-free transmission of the images into the control system. Their suitability for use under influence of high-energy radiation has been verified. Images from preliminary tests at the SRS Daresbury are presented.

  6. Building smart sensor nodes according to IEEE 1451.3 standard.

    PubMed

    da Costa, Murilo N J; Neto, Olegario C S; Ferreira, José O; da Rocha, Adson F; de A Barbosa, Talles M G

    2011-01-01

    A Body Sensor Network (BSN) application requires many software and hardware adaptations to support correctly data exchanges between different sensor node architectures. However, these customizations demand extra time, cost and components. This paper introduces a simple development process in order to customize off-the-shelf BSN sensor nodes according to Transducer Bus Interface Modules (TBIM) standard. IEEE 1451.3 offers technical solutions for interfacing multiple and physically separated transducer allowing self-identification, self-configuration, plug and play and hot swapping capabilities. These are important requirements relating to most BSN applications.

  7. Interoperable and diligent body area networks over IEEE802.15.6 for real-time monitoring.

    PubMed

    Kuroda, Masahiro; Takizawa, Ken-ichi; Kaneda, Isami; Shibata, Yoshiharu; Tochikubo, Osamu

    2011-01-01

    Currently, there are no standardization efforts to define interfaces and verify interoperability among implementations for body area networks (BANs) on IEEE802.15.6. A BAN consists of small and lightweight sensors, such as the ring-type SpO2 sensor, and a coordinator that collects vital data from the sensors and transfers them to a backend system for real-time monitoring and analysis. It is important for sensors to be easy-to-use, light for wearing and that they are long-lived using a small rechargeable battery. IEEE802.15.6 provides basic features for these sensors. We establish an industry-driven standardization association for healthcare/medical services on IEEE802.15.6. Industry standardization targets current and emerging small sensors, not those for fixed medical devices in hospitals, such as those in the ISO/IEEE11073 family, and deals with time-driven data. We propose a combination of various layers of power-saving functions for a sensor that satisfies the interfaces. We discuss these functions and evaluate them. As a feasibility study, we then test a false-alert system using a BAN configuration following the standard interfaces, though the standardizations and evaluations are still in progress along with the IEEE802.15.6 standardization activity.

  8. Proceedings of the International Symposium on the Structure and Properties of Dislocations in Semiconductors (6th) held in Oxford (England) 5-8 April 1989: Structure and Properties of Dislocations in Semiconductors 1989

    DTIC Science & Technology

    1989-04-08

    transmission electron microscopy (Bourret and Rouviere (1989)) and one is therefore only able to check periodicity over distances of the order of several ten...Bacalis N, Economou E N, and Cohen M H 1988 Phys. Rev. B37, 2714 Bary A and Nouet G 1988 J. Appl. Phys. 63, 435 Bourret A and Rouviere J L 1989 in

  9. International Conference on Composite Materials, 6th, and European Conference on Composite Materials, 2nd, Imperial College of Science and Technology, London, England, July 20-24, 1987, Proceedings. Volumes 1, 2, 3, 4, 5, and 6

    SciTech Connect

    Matthews, F.L.; Buskell, N.C.R.; Hodgkinson, J.M.; Morton, J.

    1987-01-01

    The manufacture processes, mechanical characterization, and nondestructive testing of composite materials are discussed together with various polymer matrices. Papers are presented on dynamic dielectric analysis for nondestructive cure monitoring and process control, rheology and packing effects in the injection moulding of long-fiber-reinforced composites, a simulation of fiber packing in flow-processed composites, the influence of interwoven configuration on mechanical properties of crossed helicoidal-filament-winding composites, and a simple flow rule for characterizing nonlinear behavior of fiber composites. Attention is also given to the specific features of the mechanical behavior of unidirectionally reinforced plastics under compression, nondestructive testing by Raman spectroscopy, flaw detection in composites using shearography, the use of a medical tomodensitometer in the nondestructive testing of composite materials, and the utilization of thermal analysis in determining the amount of polymer in composites and the extent of prepolymerization.

  10. Proceedings of the International Conference on Cyclic Nucleotides, Calcium and Protein Phosphorylation (6th) Held in Bethesda, Maryland on September 2-7, 1986. Advances in Second Messenger and Phosphorprotein Research. Volume 21A. Abstracts Volume

    DTIC Science & Technology

    1988-11-16

    IP6 . The separations were used to investigate the thyrotropin releasing hormone (TRH) stimulated priduction of inositol phos- phates in a rat...liver function will be discussed. Supported by the Medical Research Council, London, British Diabetic Association and Royal Society. .6 INOSITOL ...School of Medicine, Kobe 650, Japan. Receptor-mediated hydrolysis of inositol phospholipids was recently realized to be a common mechanism for

  11. An Efficient Power Saving Mechanism for Delay-Guaranteed Services in IEEE 802.16e

    NASA Astrophysics Data System (ADS)

    Park, Yunju; Hwang, Gang Uk

    As the IEEE 802.16e Wireless Metropolitan Access Network (WMAN) supports the mobility of a mobile station (MS), increasing MS power efficiency has become an important issue. In this paper, we analyze the sleep-mode operation for an efficient power saving mechanism for delay-guaranteed services in the IEEE 802.16e WMAN and observe the effects of the operating parameters related to this operation. For the analysis we use the M/GI/1/K queueing system with multiple vacations, exhaustive services and setup times. In the analysis, we consider the power consumption during the wake-mode period as well as the sleep-mode period. As a performance measure for the power consumption, we propose the power consumption per unit time per effective arrival which considers the power consumption and the packet blocking probability simultaneously. In addition, since we consider delay-guaranteed services, the average packet response delay is also considered as a performance measure. Based on the performance measures, we obtain the optimal sleep-mode operation which minimizes the power consumption per unit time per effective arrival with a given delay requirement. Numerical studies are also provided to investigate the system performance and to show how to achieve our objective.

  12. Throughput analysis of the IEEE 802.4 token bus standard under heavy load

    NASA Technical Reports Server (NTRS)

    Pang, Joseph; Tobagi, Fouad

    1987-01-01

    It has become clear in the last few years that there is a trend towards integrated digital services. Parallel to the development of public Integrated Services Digital Network (ISDN) is service integration in the local area (e.g., a campus, a building, an aircraft). The types of services to be integrated depend very much on the specific local environment. However, applications tend to generate data traffic belonging to one of two classes. According to IEEE 802.4 terminology, the first major class of traffic is termed synchronous, such as packetized voice and data generated from other applications with real-time constraints, and the second class is called asynchronous which includes most computer data traffic such as file transfer or facsimile. The IEEE 802.4 token bus protocol which was designed to support both synchronous and asynchronous traffic is examined. The protocol is basically a timer-controlled token bus access scheme. By a suitable choice of the design parameters, it can be shown that access delay is bounded for synchronous traffic. As well, the bandwidth allocated to asynchronous traffic can be controlled. A throughput analysis of the protocol under heavy load with constant channel occupation of synchronous traffic and constant token-passing times is presented.

  13. Service design projects sponsored by the Kansas State University Student Chapter of the IEEE EMBS.

    PubMed

    Griffith, Connor; Gruber, Lucinda; Young, Ethan; Humphrey, Jason; Warren, Steve

    2008-01-01

    Service projects offer volunteer student organizations a means to generate interest and focus activity outside of the context of the classroom. This paper addresses efforts by the Kansas State University (KSU) Student Chapter of the IEEE Engineering in Medicine and Biology Society (EMBS) to initiate and guide service projects in two primary areas: (1) research to aid persons with disabilities (RAPD) and (2) hands-on efforts to interest young women in the quantitative fields of science and engineering. Three RAPD projects are presented: a computer mouse design that helps to alleviate productivity problems associated with Parkinson's tremors, a battery removal tool for arthritic individuals with limited dexterity, and a wireless door control and communication system to assist mobility-limited individuals. Service projects to garner science and engineering interest in young women are co-sponsored by the KSU Women in Engineering and Science Program (WESP). The most recent activity, entitled 'Vital Signs Shirts,' is presented in this paper, along with a summary of pending interactive laboratories designed to interest participants in engineering as applied to the human body. These service projects encourage IEEE EMBS student chapter members to explore their biomedical engineering interests and make a positive impact in the community.

  14. Implementing ISO/IEEE 11073: proposal of two different strategic approaches.

    PubMed

    Martínez-Espronceda, M; Serrano, L; Martínez, I; Escayola, J; Led, S; Trigo, J; García, J

    2008-01-01

    This paper explains the challenges encountered during the ISO/IEEE 11073 standard implementation process. The complexity of the standard and the consequent heavy requirements, which have not encouraged software engineers to adopt the standard. The developing complexity evaluation drives us to propose two possible implementation strategies that cover almost all possible use cases and eases handling the standard by non-expert users. The first one is focused on medical devices (MD) and proposes a low-memory and low-processor usage technique. It is based on message patterns that allow simple functions to generate ISO/IEEE 11073 messages and to process them easily. In this way a framework for MDs can be obtained. Second one is focused on more powerful machines such as data loggers or gateways (aka. computer engines (CE)), which do not have the MDs' memory and processor usage constraints. For CEs a more intelligent and adaptative Plug&Play (P&P) solution is provided. It consists on a general platform that can access to any device supported by the standard. Combining both strategies will cut developing time for applications based on ISO/EEE 11073.

  15. Multiple power-saving MSSs scheduling methods for IEEE802.16e broadband wireless networks.

    PubMed

    Huang, Shih-Chang

    2014-01-01

    This work proposes two enhanced multiple mobile subscriber stations (MSSs) power-saving scheduling methods for IEEE802.16e broadband wireless networks. The proposed methods are designed for the Unsolicited Grant Service (UGS) of IEEE802.16e. To reduce the active periods of all power-saving MSSs, the base station (BS) allocates each MSS fewest possible transmission frames to retrieve its data from the BS. The BS interlaces the active periods of each MSS to increase the amount of scheduled MSSs and splits the overflowing transmission frames to maximize the bandwidth utilization. Simulation results reveal that interlacing the active periods of MSSs can increase the number of scheduled MSSs to more than four times of that in the Direct scheduling method. The bandwidth utilization can thus be improved by 60%-70%. Splitting the overflowing transmission frames can improve bandwidth utilization by more than 10% over that achieved using the method of interlacing active periods, with a sacrifice of only 1% of the sleep periods in the interlacing active period method.

  16. Throughput analysis of the IEEE 802.4 token bus standard under heavy load

    NASA Astrophysics Data System (ADS)

    Pang, Joseph; Tobagi, Fouad

    1987-03-01

    It has become clear in the last few years that there is a trend towards integrated digital services. Parallel to the development of public Integrated Services Digital Network (ISDN) is service integration in the local area (e.g., a campus, a building, an aircraft). The types of services to be integrated depend very much on the specific local environment. However, applications tend to generate data traffic belonging to one of two classes. According to IEEE 802.4 terminology, the first major class of traffic is termed synchronous, such as packetized voice and data generated from other applications with real-time constraints, and the second class is called asynchronous which includes most computer data traffic such as file transfer or facsimile. The IEEE 802.4 token bus protocol which was designed to support both synchronous and asynchronous traffic is examined. The protocol is basically a timer-controlled token bus access scheme. By a suitable choice of the design parameters, it can be shown that access delay is bounded for synchronous traffic. As well, the bandwidth allocated to asynchronous traffic can be controlled. A throughput analysis of the protocol under heavy load with constant channel occupation of synchronous traffic and constant token-passing times is presented.

  17. Dynamic Contention Window Control Scheme in IEEE 802.11e EDCA-Based Wireless LANs

    NASA Astrophysics Data System (ADS)

    Abeysekera, B. A. Hirantha Sithira; Matsuda, Takahiro; Takine, Tetsuya

    In the IEEE 802.11 MAC protocol, access points (APs) are given the same priority as wireless terminals in terms of acquiring the wireless link, even though they aggregate several downlink flows. This feature leads to a serious throughput degradation of downlink flows, compared with uplink flows. In this paper, we propose a dynamic contention window control scheme for the IEEE 802.11e EDCA-based wireless LANs, in order to achieve fairness between uplink and downlink TCP flows while guaranteeing QoS requirements for real-time traffic. The proposed scheme first determines the minimum contention window size in the best-effort access category at APs, based on the number of TCP flows. It then determines the minimum and maximum contention window sizes in higher priority access categories, such as voice and video, so as to guarantee QoS requirements for these real-time traffic. Note that the proposed scheme does not require any modification to the MAC protocol at wireless terminals. Through simulation experiments, we show the effectiveness of the proposed scheme.

  18. Software Aspects of IEEE Floating-Point Computations for Numerical Applications in High Energy Physics

    SciTech Connect

    2010-05-11

    Floating-point computations are at the heart of much of the computing done in high energy physics. The correctness, speed and accuracy of these computations are of paramount importance. The lack of any of these characteristics can mean the difference between new, exciting physics and an embarrassing correction. This talk will examine practical aspects of IEEE 754-2008 floating-point arithmetic as encountered in HEP applications. After describing the basic features of IEEE floating-point arithmetic, the presentation will cover: common hardware implementations (SSE, x87) techniques for improving the accuracy of summation, multiplication and data interchange compiler options for gcc and icc affecting floating-point operations hazards to be avoided About the speaker Jeffrey M Arnold is a Senior Software Engineer in the Intel Compiler and Languages group at Intel Corporation. He has been part of the Digital->Compaq->Intel compiler organization for nearly 20 years; part of that time, he worked on both low- and high-level math libraries. Prior to that, he was in the VMS Engineering organization at Digital Equipment Corporation. In the late 1980s, Jeff spent 2½ years at CERN as part of the CERN/Digital Joint Project. In 2008, he returned to CERN to spent 10 weeks working with CERN/openlab. Since that time, he has returned to CERN multiple times to teach at openlab workshops and consult with various LHC experiments. Jeff received his Ph.D. in physics from Case Western Reserve University.

  19. A Green Media Access Method for IEEE 802.15.6 Wireless Body Area Network.

    PubMed

    Jacob, Anil K; Jacob, Lillykutty

    2017-09-30

    It is of utmost importance to conserve battery energy to the maximum possible extent in WBAN nodes while collecting and transferring medical data. The IEEE 802.15.6 WBAN standard does not specify any method to conserve energy. This paper focuses on a method to conserve energy in IEEE 802.15.6 WBAN nodes when using CSMA/CA, while simultaneously restricting data delivery delay to the required value as specified in medical applications. The technique is to allow the nodes to sleep all the times except for receiving beacons and for transmitting data frames whenever a data frame enters an empty buffer. The energy consumed by the nodes and the average latency of data frame for periodical arrival of data are found out analytically. The analytical results are validated and also the proposed method is compared with other energy conserving schemes, using Castalia simulation studies. The proposed method shows superior performance in both device lifetime and latency of emergency medical data.

  20. Predictable and reliable ECG monitoring over IEEE 802.11 WLANs within a hospital.

    PubMed

    Park, Juyoung; Kang, Kyungtae

    2014-09-01

    Telecardiology provides mobility for patients who require constant electrocardiogram (ECG) monitoring. However, its safety is dependent on the predictability and robustness of data delivery, which must overcome errors in the wireless channel through which the ECG data are transmitted. We report here a framework that can be used to gauge the applicability of IEEE 802.11 wireless local area network (WLAN) technology to ECG monitoring systems in terms of delay constraints and transmission reliability. For this purpose, a medical-grade WLAN architecture achieved predictable delay through the combination of a medium access control mechanism based on the point coordination function provided by IEEE 802.11 and an error control scheme based on Reed-Solomon coding and block interleaving. The size of the jitter buffer needed was determined by this architecture to avoid service dropout caused by buffer underrun, through analysis of variations in transmission delay. Finally, we assessed this architecture in terms of service latency and reliability by modeling the transmission of uncompressed two-lead electrocardiogram data from the MIT-BIH Arrhythmia Database and highlight the applicability of this wireless technology to telecardiology.

  1. Investigating the efficiency of IEEE 802.15.4 for medical monitoring applications.

    PubMed

    Pelegris, P; Banitsas, K

    2011-01-01

    Recent advancements in wireless communications technologies bring us one step closer to provide reliable Telecare services as an alternative to patients staying in a hospital mainly for monitoring purposes. In this research we investigate the efficiency of IEEE 802.15.4 in a simple scenario where a patient is being monitored using an ECG and a blood analysis module. This approach binds well with assisted living solutions, by sharing the network infrastructure for both monitoring and control while taking advantage of the low power features of the protocol. Such applications are becoming more and more realistic to implement as IEEE 802.15.4 compatible hardware becomes increasingly available. Our aim is to examine the impact of Beacon and Superframe Order in the medium access delay, dropped packets, end to end delay, average retransmission attempts and consumed power focusing on this bandwidth demanding situation where the network load does not allow low duty cycles, in order to draw some conclusions on the effect that this will have to telemonitoring applications.

  2. On the seamless, harmonized use of ISO/IEEE11073 and openEHR.

    PubMed

    Trigo, Jesús D; Kohl, Christian D; Eguzkiza, Aitor; Martínez-Espronceda, Miguel; Alesanco, Álvaro; Serrano, Luis; García, José; Knaup, Petra

    2014-05-01

    Standardized exchange of clinical information is a key factor in the provision of high quality health care systems. In this context, the openEHR specification facilitates the management of health data in electronic health records (EHRs), while the ISO/IEEE11073 (also referred to as X73PHD) family of standards provides a reference framework for medical device interoperability. Hospitals and health care providers using openEHR require flawless integration of data coming from external sources, such as X73PHD. Hence, a harmonization process is crucial for achieving a seamless, coherent use of those specifications in real scenarios. Such harmonization is the aim of this paper. Thus, the classes and attributes of a representative number of X73PHD specializations for medical devices--weight, temperature, blood pressure, pulse and heart rate, oximetry, and electrocardiograph--along with the X73PHD core document--ISO/IEEE11073-20601--have been analyzed and mapped to openEHR archetypes. The proposed methodology reuses the existing archetypes when possible and suggests new ones--or appropriate modifications--otherwise. As a result, this paper analyzes the inconsistencies found and the implications thereof in the coordinated use of these two standards. The procedure has also shown how existing standards are able to influence the archetype development process, enhancing the existing archetype corpus.

  3. Software Aspects of IEEE Floating-Point Computations for Numerical Applications in High Energy Physics

    ScienceCinema

    None

    2016-07-12

    Floating-point computations are at the heart of much of the computing done in high energy physics. The correctness, speed and accuracy of these computations are of paramount importance. The lack of any of these characteristics can mean the difference between new, exciting physics and an embarrassing correction. This talk will examine practical aspects of IEEE 754-2008 floating-point arithmetic as encountered in HEP applications. After describing the basic features of IEEE floating-point arithmetic, the presentation will cover: common hardware implementations (SSE, x87) techniques for improving the accuracy of summation, multiplication and data interchange compiler options for gcc and icc affecting floating-point operations hazards to be avoided About the speaker Jeffrey M Arnold is a Senior Software Engineer in the Intel Compiler and Languages group at Intel Corporation. He has been part of the Digital->Compaq->Intel compiler organization for nearly 20 years; part of that time, he worked on both low- and high-level math libraries. Prior to that, he was in the VMS Engineering organization at Digital Equipment Corporation. In the late 1980s, Jeff spent 2½ years at CERN as part of the CERN/Digital Joint Project. In 2008, he returned to CERN to spent 10 weeks working with CERN/openlab. Since that time, he has returned to CERN multiple times to teach at openlab workshops and consult with various LHC experiments. Jeff received his Ph.D. in physics from Case Western Reserve University.

  4. Simultaneous transmission of the IEEE 802.11 radio signal and optical Gbit Ethernet over the multimode fiber link

    NASA Astrophysics Data System (ADS)

    Maksymiuk, L.; Podziewski, A.

    2015-09-01

    In the paper we present a successful joint transmission of the IEEE 802.11 signal and an optical Gbit Ethernet over a multimode fiber based link. Most importantly, the multiplexation of both signals was performed in the optical domain. Due to the utilization of the multimode fiber the OBI noise was avoided and both channels were able to operate at the same wavelength. We prove that potential RoF link for IEEE 802.11 signal distribution may be used to additionally transmit other signals as Gbit Ethernet and therefore utilize the fiber infrastructure installed more effectively. The qualities of both the IEEE 802.11 and Ethernet transmissions fulfilled the requirements imposed by appropriate standards.

  5. A distributed scheme to manage the dynamic coexistence of IEEE 802.15.4-based health-monitoring WBANs.

    PubMed

    Deylami, Mohammad N; Jovanov, Emil

    2014-01-01

    The overlap of transmission ranges between wireless networks as a result of mobility is referred to as dynamic coexistence. The interference caused by coexistence may significantly affect the performance of wireless body area networks (WBANs) where reliability is particularly critical for health monitoring applications. In this paper, we analytically study the effects of dynamic coexistence on the operation of IEEE 802.15.4-based health monitoring WBANs. The current IEEE 802.15.4 standard lacks mechanisms for effectively managing the coexistence of mobile WBANs. Considering the specific characteristics and requirements of health monitoring WBANs, we propose the dynamic coexistence management (DCM) mechanism to make IEEE 802.15.4-based WBANs able to detect and mitigate the harmful effects of coexistence. We assess the effectiveness of this scheme using extensive OPNET simulations. Our results indicate that DCM improves the successful transmission rates of dynamically coexisting WBANs by 20%-25% for typical medical monitoring applications.

  6. European Conference on Visual Perception (6th).

    DTIC Science & Technology

    1983-11-30

    Institut fuer Verhaltenswissenschaft, ETH- Zentrum, 8092 Zuerich - Switzerland W. GERBINO: Istituto di Psicologia , Universitk di Padova, Piazza Capitaniato...fuer medizinische Psychologie, Schillerstrasse 42 - 8000 Muenchen 2, West Germany L. JANEZ ESCALADA: Psicologia Matem&tica, Facultad de Psicologla...Norway P. MANCINI: Istituto di Fisiologia clinica del C.N.R., Via Bonanno Pisano - 56100 Pisa, Italy C.A. MARZI: Istituto di Psicologia . Universit

  7. Elementary Science Guide -- 6th Grade.

    ERIC Educational Resources Information Center

    Wieland, Anne; And Others

    Presented is a resource book to be used with instructional kits for elementary school science students, grade 6. The individual units at this grade level are based on curriculum which has been developed by the National Science Foundation in the 1960s and revised to meet student and teacher identified needs in Anchorage, Alaska. Six units are…

  8. Imagine the Universe! (6th Edition)

    NASA Technical Reports Server (NTRS)

    Lochner, James; White, Nicholas E. (Technical Monitor)

    2002-01-01

    Contained on this CD-ROM you will find three astronomy and space science learning centers, individually captured from the World Wide Web in December of 2001. Each site contains its own learning adventure full of facts, fun, beautiful images, movies, and excitement!

  9. Technology for Teachers. 6th Edition.

    ERIC Educational Resources Information Center

    Volker, Roger; Simonson, Michael

    This book helps teachers learn how to use and make educational media, covering traditional and new media such as computer laboratories, authentic assessment, theory bases, and hypermedia. Chapter topics progress from simple to complex. Each chapter includes clearly stated behavioral objectives that provide a study guide for students and can serve…

  10. Elementary Science Guide -- 6th Grade.

    ERIC Educational Resources Information Center

    Wieland, Anne; And Others

    Presented is a resource book to be used with instructional kits for elementary school science students, grade 6. The individual units at this grade level are based on curriculum which has been developed by the National Science Foundation in the 1960s and revised to meet student and teacher identified needs in Anchorage, Alaska. Six units are…

  11. Proceedings of the Annual Colloquium (6th).

    ERIC Educational Resources Information Center

    Pittsburgh Univ., PA. Council of Graduate Students in Education.

    Papers collected from the Council of Graduate Students in Education's Sixth Annual colloquium on June 14, 1980, in the School of Education, University of Pittsburgh are presented. The program featured Wilma B. Smith, who addressed the colloquium theme, "Education: The 1980's and Beyond." The same theme was the subject of three panelists: Dennis…

  12. Discovering the Universe, 6th edition

    NASA Astrophysics Data System (ADS)

    Comins, Neil F.; Kaufmann, William J.

    Discovering the Universe is the best-selling brief text for descriptive one-term astronomy courses (especially those with no mathematics prerequisites). Carried along by the book's vibrant main theme--the process of scientific discovery--readers will encounter spectacular sights, landmark experiments, and recent discoveries, while learning to avoid the pitfalls created by common misconceptions about astronomy. Now enhanced with a powerful technology and image projection package, this is the most exciting and effective edition yet. The accompanying CD-ROM features a special student version of the award-winning virtual planetarium software, Starry Night? Backyard.

  13. Beamforming Transmission in IEEE 802.11ac under Time-Varying Channels

    PubMed Central

    2014-01-01

    The IEEE 802.11ac wireless local area network (WLAN) standard has adopted beamforming (BF) schemes to improve spectral efficiency and throughput with multiple antennas. To design the transmit beam, a channel sounding process to feedback channel state information (CSI) is required. Due to sounding overhead, throughput increases with the amount of transmit data under static channels. Under practical channel conditions with mobility, however, the mismatch between the transmit beam and the channel at transmission time causes performance loss when transmission duration after channel sounding is too long. When the fading rate, payload size, and operating signal-to-noise ratio are given, the optimal transmission duration (i.e., packet length) can be determined to maximize throughput. The relationship between packet length and throughput is also investigated for single-user and multiuser BF modes. PMID:25152927

  14. IEEE 1394/firewire a low cost, high speed, digital serial bus

    SciTech Connect

    Gaunt, R.

    1997-05-01

    Does the world need yet another 1/0 bus standard? If you need fast and cheap serial video communication, then the answer is yes. As technology advances, so too must data transport mechanisms advance. You can`t expect RS-232 to support real-time digital video, and if you can`t afford expensive professional serial video interfaces, (such as Sony`s Serial Digital Interface), Firewire may be a good solution. IEEE 1394, or commonly known as Firewire, is a general purpose serial bus that meets many of the 1/0 needs of today`s video and multimedia developers. For those of you who only read the first paragraph, here`s Firewire in a nutshell: It provides a guaranteed transfer rate of 10OMbps or 20OMbps of digital data (such as video direct from camera to computer), over an inexpensive, non-proprietary serial bus. Here is a list of its features.

  15. Integration of heterogeneous biomedical sensors into an ISO/IEEE 11073 compliant application.

    PubMed

    Fioravanti, A; Fico, G; Arredondo, M T; Salvi, D; Villalar, J L

    2010-01-01

    Current trends in healthcare technology include mobile-based applications. Relevant advances in the integration of vital signs monitoring devices with mobile platforms are widely reported nowadays. In this context, conceiving and designing an interoperable application is essential due to the growing necessity of integrating a huge and heterogeneous amount of biomedical data, coming from a wide range of devices and sensors. In this paper the key research issues associated with such integration are presented as well as a specific proposal to solve these problems. It is based on a middleware architecture for the integration of biomedical sensors with mobile devices, derived from the ISO/IEEE 11073 standards family. The application has been developed in the framework of an EU-funded R&D project called METABO.

  16. Heterogeneous voice flows-oriented call admission control in IEEE 802.11e WLANs

    NASA Astrophysics Data System (ADS)

    Wu, Qi-lin; Huang, Zhen-jin; Wang, Shi-yi

    2014-04-01

    Considering the circumstance of heterogeneous voice flows, first, by applying Markov chain, this paper proposes an unsaturated analytical model for the IEEE 802.11e EDCA protocol, which considers the condition of non-ideal transmission channel and the character of the occurrence of backoff countdown at the beginning of time slot in EDCA protocol. Furthermore, according to the proposed model, the media access delay and throughput of a flow are analysed, and the flow-oriented call admission control (CAC) scheme is proposed. Finally, the simulation results are shown to confirm that the proposed CAC scheme can guarantee the requirements of throughput and delay of voice flows, and can admit more voice flows to improve the utilisation efficiency of network resources by choosing the appropriate values of the minimum contention window or the appropriate varieties of voice flows.

  17. Antenna Efficiency and the Genius of the IEEE Standard for Antenna Terms [Education Column

    NASA Astrophysics Data System (ADS)

    Warnick, Karl F.

    2012-08-01

    At a 2007 Square Kilometre Array Design Studies (SKADS) workshop in Dwingeloo, Wim van Cappellen of the Nether lands Institute for Radio Astronomy (ASTRON) gave a presentation on figures of merit, in which he memorably compared antenna terms to apples. What seems like a simple, homogeneous fruit comes in all colors and varieties. Similarly, a survey of antenna literature and textbooks shows that authors use a wide variety of antenna figures of merit, often not in compliance with the relevant IEEE Standard Definitions of Terms for Antennas [1]. Since this standard is now in the process of revision by the Antennas and Propagation Society Antenna Standards Committee, it seems worth while to consider the standard, and clarify some common misunderstandings and inconsistent usages.

  18. Reliable Multicast MAC Protocol for IEEE 802.11 Wireless LANs with Extended Service Range

    NASA Astrophysics Data System (ADS)

    Choi, Woo-Yong

    2011-11-01

    In this paper, we propose the efficient reliable multicast MAC protocol by which the AP (Access Point) can transmit reliably its multicast data frames to the recipients in the AP's one-hop or two-hop transmission range. The AP uses the STAs (Stations) that are directly associated with itself as the relays for the data delivery to the remote recipients that cannot be reached directly from itself. Based on the connectivity information among the recipients, the reliable multicast MAC protocol optimizes the number of the RAK (Request for ACK) frame transmissions in a reasonable computational time. Numerical examples show that our proposed MAC protocol significantly enhances the MAC performance compared with the BMMM (Batch Mode Multicast MAC) protocol that is extended to support the recipients that are in the AP's one-hop or two-hop transmission range in IEEE 802.11 wireless LANs.

  19. Experimental video signals distribution MMF network based on IEEE 802.11 standard

    NASA Astrophysics Data System (ADS)

    Kowalczyk, Marcin; Maksymiuk, Lukasz; Siuzdak, Jerzy

    2014-11-01

    The article was focused on presentation the achievements in a scope of experimental research on transmission of digital video streams in the frame of specially realized for this purpose ROF (Radio over Fiber) network. Its construction was based on the merge of wireless IEEE 802.11 network, popularly referred as Wi-Fi, with a passive optical network PON based on multimode fibers MMF. The proposed approach can constitute interesting proposal in area of solutions in the scope of the systems monitoring extensive, within which is required covering of a large area with ensuring of a relatively high degree of immunity on the interferences transmitted signals from video IP cameras to the monitoring center and a high configuration flexibility (easily change the deployment of cameras) of such network.

  20. Development of a Low Mobility IEEE 802.15.4 Compliant VANET System for Urban Environments

    PubMed Central

    Nazabal, Juan Antonio; Falcone, Francisco; Fernández-Valdivielso, Carlos; Matías, Ignacio Raúl

    2013-01-01

    The use of Vehicular Ad-Hoc Networks (VANETs) is growing nowadays and it includes both roadside-to-vehicle communication (RVC) and inter-vehicle communication (IVC). The purpose of VANETs is to exchange useful information between vehicles and the roadside infrastructures for making an intelligent use of them. There are several possible applications for this technology like: emergency warning system for vehicles, cooperative adaptive cruise control or collision avoidance, among others. The objective of this work is to develop a VANET prototype system for urban environments using IEEE 802.15.4 compliant devices. Simulation-based values of the estimated signal strength and radio link quality values are obtained and compared with measurements in outdoor conditions to validate an implemented VANET system. The results confirm the possibility of implementing low cost vehicular communication networks operating at moderate vehicular speeds. PMID:23760089

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

    PubMed

    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.

  2. vispubdata.org: A Metadata Collection about IEEE Visualization (VIS) Publications.

    PubMed

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

    2016-10-05

    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.

  3. Beamforming transmission in IEEE 802.11ac under time-varying channels.

    PubMed

    Yu, Heejung; Kim, Taejoon

    2014-01-01

    The IEEE 802.11ac wireless local area network (WLAN) standard has adopted beamforming (BF) schemes to improve spectral efficiency and throughput with multiple antennas. To design the transmit beam, a channel sounding process to feedback channel state information (CSI) is required. Due to sounding overhead, throughput increases with the amount of transmit data under static channels. Under practical channel conditions with mobility, however, the mismatch between the transmit beam and the channel at transmission time causes performance loss when transmission duration after channel sounding is too long. When the fading rate, payload size, and operating signal-to-noise ratio are given, the optimal transmission duration (i.e., packet length) can be determined to maximize throughput. The relationship between packet length and throughput is also investigated for single-user and multiuser BF modes.

  4. Development of a low mobility IEEE 802.15.4 compliant VANET system for urban environments.

    PubMed

    Nazabal, Juan Antonio; Falcone, Francisco; Fernández-Valdivielso, Carlos; Matías, Ignacio Raúl

    2013-05-29

    The use of Vehicular Ad-Hoc Networks (VANETs) is growing nowadays and it includes both roadside-to-vehicle communication (RVC) and inter-vehicle communication (IVC). The purpose of VANETs is to exchange useful information between vehicles and the roadside infrastructures for making an intelligent use of them. There are several possible applications for this technology like: emergency warning system for vehicles, cooperative adaptive cruise control or collision avoidance, among others. The objective of this work is to develop a VANET prototype system for urban environments using IEEE 802.15.4 compliant devices. Simulation-based values of the estimated signal strength and radio link quality values are obtained and compared with measurements in outdoor conditions to validate an implemented VANET system. The results confirm the possibility of implementing low cost vehicular communication networks operating at moderate vehicular speeds.

  5. 2011 IEEE Visualization Contest winner: Visualizing unsteady vortical behavior of a centrifugal pump.

    PubMed

    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 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.

  6. Fair Scheduling and Throughput Maximization for IEEE 802.16 Mesh Mode Broadband Wireless Access Networks

    NASA Astrophysics Data System (ADS)

    Alam, Muhammad Mahbub; Hamid, Md. Abdul; Razzaque, Md. Abdur; Hong, Choong Seon

    Broadband wireless access networks are promising technology for providing better end user services. For such networks, designing a scheduling algorithm that fairly allocates the available bandwidth to the end users and maximizes the overall network throughput is a challenging task. In this paper, we develop a centralized fair scheduling algorithm for IEEE 802.16 mesh networks that exploits the spatio-temporal bandwidth reuse to further enhance the network throughput. The proposed mechanism reduces the length of a transmission round by increasing the number of non-contending links that can be scheduled simultaneously. We also propose a greedy algorithm that runs in polynomial time. Performance of the proposed algorithms is evaluated by extensive simulations. Results show that our algorithms achieve higher throughput than that of the existing ones and reduce the computational complexity.

  7. A Study of IEEE 802.15.4 Security Framework for Wireless Body Area Networks

    PubMed Central

    Saleem, Shahnaz; Ullah, Sana; Kwak, Kyung Sup

    2011-01-01

    A Wireless Body Area Network (WBAN) is a collection of low-power and lightweight wireless sensor nodes that are used to monitor the human body functions and the surrounding environment. It supports a number of innovative and interesting applications, including ubiquitous healthcare and Consumer Electronics (CE) applications. Since WBAN nodes are used to collect sensitive (life-critical) information and may operate in hostile environments, they require strict security mechanisms to prevent malicious interaction with the system. In this paper, we first highlight major security requirements and Denial of Service (DoS) attacks in WBAN at Physical, Medium Access Control (MAC), Network, and Transport layers. Then we discuss the IEEE 802.15.4 security framework and identify the security vulnerabilities and major attacks in the context of WBAN. Different types of attacks on the Contention Access Period (CAP) and Contention Free Period (CFP) parts of the superframe are analyzed and discussed. It is observed that a smart attacker can successfully corrupt an increasing number of GTS slots in the CFP period and can considerably affect the Quality of Service (QoS) in WBAN (since most of the data is carried in CFP period). As we increase the number of smart attackers the corrupted GTS slots are eventually increased, which prevents the legitimate nodes to utilize the bandwidth efficiently. This means that the direct adaptation of IEEE 802.15.4 security framework for WBAN is not totally secure for certain WBAN applications. New solutions are required to integrate high level security in WBAN. PMID:22319358

  8. A study of IEEE 802.15.4 security framework for wireless body area networks.

    PubMed

    Saleem, Shahnaz; Ullah, Sana; Kwak, Kyung Sup

    2011-01-01

    A Wireless Body Area Network (WBAN) is a collection of low-power and lightweight wireless sensor nodes that are used to monitor the human body functions and the surrounding environment. It supports a number of innovative and interesting applications, including ubiquitous healthcare and Consumer Electronics (CE) applications. Since WBAN nodes are used to collect sensitive (life-critical) information and may operate in hostile environments, they require strict security mechanisms to prevent malicious interaction with the system. In this paper, we first highlight major security requirements and Denial of Service (DoS) attacks in WBAN at Physical, Medium Access Control (MAC), Network, and Transport layers. Then we discuss the IEEE 802.15.4 security framework and identify the security vulnerabilities and major attacks in the context of WBAN. Different types of attacks on the Contention Access Period (CAP) and Contention Free Period (CFP) parts of the superframe are analyzed and discussed. It is observed that a smart attacker can successfully corrupt an increasing number of GTS slots in the CFP period and can considerably affect the Quality of Service (QoS) in WBAN (since most of the data is carried in CFP period). As we increase the number of smart attackers the corrupted GTS slots are eventually increased, which prevents the legitimate nodes to utilize the bandwidth efficiently. This means that the direct adaptation of IEEE 802.15.4 security framework for WBAN is not totally secure for certain WBAN applications. New solutions are required to integrate high level security in WBAN.

  9. Draft 16 of a working document for a proposed standard to be entitled: IEEE standard definitions of terms associated with ferroelectric and related materials.

    PubMed

    2003-12-01

    Prior to acceptance of a standard by IEEE, it is important that the document be widely reviewed by experts in the field. This draft version of the standard is being published here to solicit that input. Readers are encouraged to submit any suggestions or corrections to the IEEE ferroelectrics standards committee for inclusion in the final version.

  10. 48 CFR 52.223-16 - IEEE 1680 Standard for the Environmental Assessment of Personal Computer Products.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... Environmental Assessment of Personal Computer Products. 52.223-16 Section 52.223-16 Federal Acquisition... Assessment of Personal Computer Products. As prescribed in 23.705(b)(1), insert the following clause: IEEE 1680 Standard for the Environmental Assessment of Personal Computer Products (DEC 2007) (a) Definitions...

  11. 48 CFR 52.223-16 - IEEE 1680 Standard for the Environmental Assessment of Personal Computer Products.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... Environmental Assessment of Personal Computer Products. 52.223-16 Section 52.223-16 Federal Acquisition... Assessment of Personal Computer Products. As prescribed in 23.706(b)(1), insert the following clause: IEEE 1680 Standard for the Environmental Assessment of Personal Computer Products (DEC 2007) (a) Definitions...

  12. 48 CFR 52.223-16 - IEEE 1680 Standard for the Environmental Assessment of Personal Computer Products.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Environmental Assessment of Personal Computer Products. 52.223-16 Section 52.223-16 Federal Acquisition... Assessment of Personal Computer Products. As prescribed in 23.705(b)(1), insert the following clause: IEEE 1680 Standard for the Environmental Assessment of Personal Computer Products (DEC 2007) (a) Definitions...

  13. 48 CFR 52.223-16 - IEEE 1680 Standard for the Environmental Assessment of Personal Computer Products.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Environmental Assessment of Personal Computer Products. 52.223-16 Section 52.223-16 Federal Acquisition... Assessment of Personal Computer Products. As prescribed in 23.705(b)(1), insert the following clause: IEEE 1680 Standard for the Environmental Assessment of Personal Computer Products (DEC 2007) (a) Definitions...

  14. Low-cost RAU with Optical Power Supply Used in a Hybrid RoF IEEE 802.11 Network

    NASA Astrophysics Data System (ADS)

    Kowalczyk, M.; Siuzdak, J.

    2014-09-01

    The paper presents design and implementation of a low-cost RAU (Remote Antenna Unit) device. It was designed to work in a hybrid Wi-Fi/optical network based on the IEEE 802.11b/g standard. An unique feature of the device is the possibility of optical power supply.

  15. Architectural and Functional Design and Evaluation of E-Learning VUIS Based on the Proposed IEEE LTSA Reference Model.

    ERIC Educational Resources Information Center

    O'Droma, Mairtin S.; Ganchev, Ivan; McDonnell, Fergal

    2003-01-01

    Presents a comparative analysis from the Institute of Electrical and Electronics Engineers (IEEE) Learning Technology Standards Committee's (LTSC) of the architectural and functional design of e-learning delivery platforms and applications, e-learning course authoring tools, and learning management systems (LMSs), with a view of assessing how…

  16. Architectural and Functional Design and Evaluation of E-Learning VUIS Based on the Proposed IEEE LTSA Reference Model.

    ERIC Educational Resources Information Center

    O'Droma, Mairtin S.; Ganchev, Ivan; McDonnell, Fergal

    2003-01-01

    Presents a comparative analysis from the Institute of Electrical and Electronics Engineers (IEEE) Learning Technology Standards Committee's (LTSC) of the architectural and functional design of e-learning delivery platforms and applications, e-learning course authoring tools, and learning management systems (LMSs), with a view of assessing how…

  17. Analyzing the Engineering Educational Research in Spain: A Global Vision through the Awards of CESEI-IEEE

    ERIC Educational Resources Information Center

    Plaza, I.; Arcega, F.; Castro, M.; Llamas, M.

    2011-01-01

    CESEI is the acronym of the Spanish Chapter of the Education Society of IEEE (the Institute of Electric and Electronics Engineers). Every year, the CESEI awards a prize for the best doctoral thesis and FDP (final (master) degree projects) about education. The thesis or the project must be developed in the areas of electrical engineering,…

  18. New Archeointensity Data from Late Neolithic Yarim Tepe 1 and 2 Settlements (Northern Iraq) Dated From The Pre-Halaf and Halaf Periods (7TH-6TH Millennia BC)

    NASA Astrophysics Data System (ADS)

    Akimova, S.; Gallet, Y.; Amirov, S.; Petrova, N.

    2016-12-01

    The main objective of this study is to recover the geomagnetic field intensity variations in the Middle East during the 7th and 6th millennia BC, with a particular focus on rapid fluctuations. We will report on new archeointensity data obtained from two ancient Late Neolithic settlements called Yarim Tepe I and II, located today in Northern Iraq, which were excavated by Soviet archeologists in the seventies. Yarim Tepe II, comprising a 7-m thick sequence of cultural deposits divided into nine successive levels, is dated from the Halaf period ( 5950-5300 BC). Yarim Tepe I is dated from the Pre-Halaf period ( 6300-5950 BC), with three recognized cultural phases referred to as Hassuna I, II and III. There, the deposits form a sequence of 6.5 m, which were divided into 12 archeological levels. Most of the archeological artifacts discovered during the excavations, in particular thousands of potsherds, are stored at the repository of Archeological Institute in Moscow, where our sampling was undertaken. We collected 29 groups of potsherds from Yarim Tepe II and 22 groups from Yarim Tepe I from superimposed stratigraphic layers having on average a thickness of about 20 cm. Each group consists of at least 3 (up to 10) fragments. All analyses were carried out using the three-axis vibrating sample magnetometer Triaxe, which allows magnetization measurements of a small sample (< 1 cm3) directly at high temperatures. The experimental protocol developed for the Triaxe magnetometer takes into account both the anisotropy and cooling rate effects on thermoremanent magnetization acquisition. Together with other data previously obtained from Syria and Bulgaria, the new archeointensity results show the occurrence of rapid geomagnetic field fluctuations in the Middle East during the Late Neolithic period, in particular during the 6th millennium BC. The data from Yarim Tepe II indeed confirm the occurrence of a short-lasting intensity peak around 5500 BC, with intensity variation rates

  19. The IEEE International Conference on Data Mining (10th) Held in Sydney, Australia on 14-17 December 2010

    DTIC Science & Technology

    2010-12-17

    on the Deep Web Tantan Liu, Fan Wang, and Gagan Agrawal q Learning Markov Network Structure with Decision Trees Daniel Lowd and Jesse Davis q Towards...Understanding Wang, Fan q Stratified Sampling for Data Mining on the Deep Web Wang, Fei q Learning a Bi-Stochastic Data Similarity Matrix Prev Home Next Papers by...Networks Aggarwal, Charu q Addressing Concept-Evolution in Concept-Drifting Data Streams Agrawal, Gagan q Stratified Sampling for Data Mining on the Deep

  20. Proceedings of IEEE International Symposium on Information Theory Held in San Antonio, Texas on January 17 - 22, 1993

    DTIC Science & Technology

    1993-01-22

    independent random variables - Cheng-Shang Chang and Joy A. Thomas ....................... 215 Minimum average cost testing for partially ordered components...improvement and satellite (called the primary) and the other using the infrared the additional cost . Such an integration is advantagenous when (called...integrate the two systems. is substantial, cost of the integration may not justify it. Thus, it For measuring the performance improvement by integration, is

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

    DTIC Science & Technology

    1994-09-23

    Gloukhian France Telecom, CNET/PAB, BP 107, Bagneux Cedex, 92225 France * CNRS, Laboratoire de Microstructures et de Micro~ lectronique , BP 107, Bagneux... Commerce Court Lompoc, CA 93436 S. W. Corzine University of California at Santa Barbara Santa Barbara, CA. 93106 ABSTRACT We employ a highly...California 93106, USA. t Optical Concepts Incorporated, 432A Commerce Court, Lompoc, California 93436, USA t Tele Danmark Research, Lyngso AlI’ 2, 2970

  2. 1991 IEEE International Joint Conference on Neural Networks, Singapore, Nov. 18-21, 1991, Proceedings. Vols. 1-3

    SciTech Connect

    Not Available

    1991-01-01

    The present conference the application of neural networks to associative memories, neurorecognition, hybrid systems, supervised and unsupervised learning, image processing, neurophysiology, sensation and perception, electrical neurocomputers, optimization, robotics, machine vision, sensorimotor control systems, and neurodynamics. Attention is given to such topics as optimal associative mappings in recurrent networks, self-improving associative neural network models, fuzzy activation functions, adaptive pattern recognition with sparse associative networks, efficient question-answering in a hybrid system, the use of abstractions by neural networks, remote-sensing pattern classification, speech recognition with guided propagation, inverse-step competitive learning, and rotational quadratic function neural networks. Also discussed are electrical load forecasting, evolutionarily stable and unstable strategies, the capacity of recurrent networks, neural net vs control theory, perceptrons for image recognition, storage capacity of bidirectional associative memories, associative random optimization for control, automatic synthesis of digital neural architectures, self-learning robot vision, and the associative dynamics of chaotic neural networks.

  3. 1991 IEEE International Symposium on Electromagnetic Compatibility, Cherry Hill, NJ, Aug. 12-16, 1991, Symposium Record

    NASA Astrophysics Data System (ADS)

    Consideration is given to EMC test facilities; cables, connectors, and shielding; PWB EMC analysis and design; lightning effects, shielded rooms, EMC system design; EMC measurements; the electromagnetic environment; electrostatic discharge; antennas and field probes; and fast and high intensity fields. Attention is also given to EMC education; EMC standards development; automotive, shipboard, and military applications; integrated circuit and signal analysis; RF absorbers and absorber-lined shielded rooms; test instrumentation, automation, and EMI protection devices; and conducted emissions and powerline analysis.

  4. IEEE International Symposium on Information Theory Held in San Diego, California on 14-19 January 1990

    DTIC Science & Technology

    1990-01-01

    simulation is investigated, Monte Carlo simulations, also known as simple averaging, have been employed as a direct means of estimation. A technique known...expected value than standard Monte Carlo simulations. The fundamental problem in Importance Sampling is to determine the appropriate density function for...sampling techniques. Furthermore, a lower bound on the improvement ratio of various importance sampling technique relative to the direct Monte Carlo

  5. Highlights from the Third European International Society for Computational Biology (ISCB) Student Council Symposium 2014

    PubMed Central

    2015-01-01

    In this meeting report, we give an overview of the talks, presentations and posters presented at the third European Symposium of the International Society for Computational Biology (ISCB) Student Council. The event was organized as a satellite meeting of the 13th European Conference for Computational Biology (ECCB) and took place in Strasbourg, France on September 6th, 2014. PMID:25708611

  6. Highlights from the Third International Society for Computational Biology (ISCB) European Student Council Symposium 2014.

    PubMed

    Francescatto, Margherita; Hermans, Susanne M A; Babaei, Sepideh; Vicedo, Esmeralda; Borrel, Alexandre; Meysman, Pieter

    2015-01-01

    In this meeting report, we give an overview of the talks, presentations and posters presented at the third European Symposium of the International Society for Computational Biology (ISCB) Student Council. The event was organized as a satellite meeting of the 13th European Conference for Computational Biology (ECCB) and took place in Strasbourg, France on September 6th, 2014.

  7. A Report on the Peace Education Commission Program, International Peace Research Association Conference 2010, Sydney, Australia

    ERIC Educational Resources Information Center

    Toh, Swee-Hin

    2010-01-01

    From July 6th to 10th, 2010, International Peace Research Association (IPRA) held its biennial conference at the University of Sydney in Australia. Hosted by the University's Centre for Peace & Conflict Studies and coordinated by Jake Lynch and a team of dedicated staff and volunteers, the conference featured seven plenary panels and many…

  8. Real-Time Station Grouping under Dynamic Traffic for IEEE 802.11ah.

    PubMed

    Tian, Le; Khorov, Evgeny; Latré, Steven; Famaey, Jeroen

    2017-07-04

    IEEE 802.11ah, marketed as Wi-Fi HaLow, extends Wi-Fi to the sub-1 GHz spectrum. Through a number of physical layer (PHY) and media access control (MAC) optimizations, it aims to bring greatly increased range, energy-efficiency, and scalability. This makes 802.11ah the perfect candidate for providing connectivity to Internet of Things (IoT) devices. One of these new features, referred to as the Restricted Access Window (RAW), focuses on improving scalability in highly dense deployments. RAW divides stations into groups and reduces contention and collisions by only allowing channel access to one group at a time. However, the standard does not dictate how to determine the optimal RAW grouping parameters. The optimal parameters depend on the current network conditions, and it has been shown that incorrect configuration severely impacts throughput, latency and energy efficiency. In this paper, we propose a traffic-adaptive RAW optimization algorithm (TAROA) to adapt the RAW parameters in real time based on the current traffic conditions, optimized for sensor networks in which each sensor transmits packets with a certain (predictable) frequency and may change the transmission frequency over time. The TAROA algorithm is executed at each target beacon transmission time (TBTT), and it first estimates the packet transmission interval of each station only based on packet transmission information obtained by access point (AP) during the last beacon interval. Then, TAROA determines the RAW parameters and assigns stations to RAW slots based on this estimated transmission frequency. The simulation results show that, compared to enhanced distributed channel access/distributed coordination function (EDCA/DCF), the TAROA algorithm can highly improve the performance of IEEE 802.11ah dense networks in terms of throughput, especially when hidden nodes exist, although it does not always achieve better latency performance. This paper contributes with a practical approach to optimizing

  9. Real-Time Station Grouping under Dynamic Traffic for IEEE 802.11ah

    PubMed Central

    Tian, Le; Latré, Steven

    2017-01-01

    IEEE 802.11ah, marketed as Wi-Fi HaLow, extends Wi-Fi to the sub-1 GHz spectrum. Through a number of physical layer (PHY) and media access control (MAC) optimizations, it aims to bring greatly increased range, energy-efficiency, and scalability. This makes 802.11ah the perfect candidate for providing connectivity to Internet of Things (IoT) devices. One of these new features, referred to as the Restricted Access Window (RAW), focuses on improving scalability in highly dense deployments. RAW divides stations into groups and reduces contention and collisions by only allowing channel access to one group at a time. However, the standard does not dictate how to determine the optimal RAW grouping parameters. The optimal parameters depend on the current network conditions, and it has been shown that incorrect configuration severely impacts throughput, latency and energy efficiency. In this paper, we propose a traffic-adaptive RAW optimization algorithm (TAROA) to adapt the RAW parameters in real time based on the current traffic conditions, optimized for sensor networks in which each sensor transmits packets with a certain (predictable) frequency and may change the transmission frequency over time. The TAROA algorithm is executed at each target beacon transmission time (TBTT), and it first estimates the packet transmission interval of each station only based on packet transmission information obtained by access point (AP) during the last beacon interval. Then, TAROA determines the RAW parameters and assigns stations to RAW slots based on this estimated transmission frequency. The simulation results show that, compared to enhanced distributed channel access/distributed coordination function (EDCA/DCF), the TAROA algorithm can highly improve the performance of IEEE 802.11ah dense networks in terms of throughput, especially when hidden nodes exist, although it does not always achieve better latency performance. This paper contributes with a practical approach to optimizing

  10. An enhanced reservation-based MAC protocol for IEEE 802.15.4 networks.

    PubMed

    Afonso, José A; Silva, Helder D; Macedo, Pedro; Rocha, Luis A

    2011-01-01

    The IEEE 802.15.4 Medium Access Control (MAC) protocol is an enabling standard for wireless sensor networks. In order to support applications requiring dedicated bandwidth or bounded delay, it provides a reservation-based scheme named Guaranteed Time Slot (GTS). However, the GTS scheme presents some drawbacks, such as inefficient bandwidth utilization and support to a maximum of only seven devices. This paper presents eLPRT (enhanced Low Power Real Time), a new reservation-based MAC protocol that introduces several performance enhancing features in comparison to the GTS scheme. This MAC protocol builds on top of LPRT (Low Power Real Time) and includes various mechanisms designed to increase data transmission reliability against channel errors, improve bandwidth utilization and increase the number of supported devices. A motion capture system based on inertial and magnetic sensors has been used to validate the protocol. The effectiveness of the performance enhancements introduced by each of the new features is demonstrated through the provision of both simulation and experimental results.

  11. Link Investigation of IEEE 802.15.4 Wireless Sensor Networks in Forests

    PubMed Central

    Ding, Xingjian; Sun, Guodong; Yang, Gaoxiang; Shang, Xinna

    2016-01-01

    Wireless sensor networks are expected to automatically monitor the ecological evolution and wildlife habits in forests. Low-power links (transceivers) are often adopted in wireless sensor network applications, in order to save the precious sensor energy and then achieve long-term, unattended monitoring. Recent research has presented some performance characteristics of such low-power wireless links under laboratory or outdoor scenarios with less obstacles, and they have found that low-power wireless links are unreliable and prone to be affected by the target environment. However, there is still less understanding about how well the low-power wireless link performs in real-world forests and to what extent the complex in-forest surrounding environments affect the link performances. In this paper, we empirically evaluate the low-power links of wireless sensors in three typical different forest environments. Our experiment investigates the performance of the link layer compatible with the IEEE 802.15.4 standard and analyzes the variation patterns of the packet reception ratio (PRR), the received signal strength indicator (RSSI) and the link quality indicator (LQI) under diverse experimental settings. Some observations of this study are inconsistent with or even contradict prior results that are achieved in open fields or relatively clean environments and thus, provide new insights both into effectively evaluating the low-power wireless links and into efficiently deploying wireless sensor network systems in forest environments. PMID:27355957

  12. IEEE-802.15.4-based low-power body sensor node with RF energy harvester.

    PubMed

    Tran, Thang Viet; Chung, Wan-Young

    2014-01-01

    This paper proposes the design and implementation of a low-voltage and low-power body sensor node based on the IEEE 802.15.4 standard to collect electrocardiography (ECG) and photoplethysmography (PPG) signals. To achieve compact size, low supply voltage, and low power consumption, the proposed platform is integrated into a ZigBee mote, which contains a DC-DC booster, a PPG sensor interface module, and an ECG front-end circuit that has ultra-low current consumption. The input voltage of the proposed node is very low and has a wide range, from 0.65 V to 3.3 V. An RF energy harvester is also designed to charge the battery during the working mode or standby mode of the node. The power consumption of the proposed node reaches 14 mW in working mode to prolong the battery lifetime. The software is supported by the nesC language under the TinyOS environment, which enables the proposed node to be easily configured to function as an individual health monitoring node or a node in a wireless body sensor network (BSN). The proposed node is used to set up a wireless BSN that can simultaneously collect ECG and PPG signals and monitor the results on the personal computer.

  13. Experiences and lessons learned from the formation of a new IEEE EMBS student chapter.

    PubMed

    Celebi, Leyla; Pickel, Lara; Sprouse, Mary; Dyer, Stephen A; Warren, Steve

    2006-01-01

    A student chapter of a professional society offers many benefits to faculty and students, as it presents a means whereby students can become engaged with a global community in their areas of training prior to graduation from their local institution. This paper addresses the experiences and lessons learned from the Fall 2005 formation of a student chapter of the IEEE Engineering in Medicine and Biology Society (EMBS) at Kansas State University (KSU). Since KSU does not currently support a formal biomedical engineering program, the overall goal of this endeavor was to establish an organization that could serve as a focal community for both ongoing and future biomedical efforts. Initial chapter activities targeted fund raising and the establishment of project teams whose goal is to design products to aid persons with disabilities. Successes include very rapid growth in numbers of participants, excitement that the students and local community express with regard to the design projects, and the broad diversity, in terms of both gender and area of study, of those participating. Lessons learned center on constitutional issues and the administration of the student design projects.

  14. Low-power secure body area network for vital sensors toward IEEE802.15.6.

    PubMed

    Kuroda, Masahiro; Qiu, Shuye; Tochikubo, Osamu

    2009-01-01

    Many healthcare/medical services have started using personal area networks, such as Bluetooth and ZigBee; these networks consist of various types of vital sensors. These works focus on generalized functions for sensor networks that expect enough battery capacity and low-power CPU/RF (Radio Frequency) modules, but less attention to easy-to-use privacy protection. In this paper, we propose a commercially-deployable secure body area network (S-BAN) with reduced computational burden on a real sensor that has limited RAM/ROM sizes and CPU/RF power consumption under a light-weight battery. Our proposed S-BAN provides vital data ordering among sensors that are involved in an S-BAN and also provides low-power networking with zero-administration security by automatic private key generation. We design and implement the power-efficient media access control (MAC) with resource-constraint security in sensors. Then, we evaluate the power efficiency of the S-BAN consisting of small sensors, such as an accessory type ECG and ring-type SpO2. The evaluation of power efficiency of the S-BAN using real sensors convinces us in deploying S-BAN and will also help us in providing feedbacks to the IEEE802.15.6 MAC, which will be the standard for BANs.

  15. On the Feasibility of Wireless Multimedia Sensor Networks over IEEE 802.15.5 Mesh Topologies

    PubMed Central

    Garcia-Sanchez, Antonio-Javier; Losilla, Fernando; Rodenas-Herraiz, David; Cruz-Martinez, Felipe; Garcia-Sanchez, Felipe

    2016-01-01

    Wireless Multimedia Sensor Networks (WMSNs) are a special type of Wireless Sensor Network (WSN) where large amounts of multimedia data are transmitted over networks composed of low power devices. Hierarchical routing protocols typically used in WSNs for multi-path communication tend to overload nodes located within radio communication range of the data collection unit or data sink. The battery life of these nodes is therefore reduced considerably, requiring frequent battery replacement work to extend the operational life of the WSN system. In a wireless sensor network with mesh topology, any node may act as a forwarder node, thereby enabling multiple routing paths toward any other node or collection unit. In addition, mesh topologies have proven advantages, such as data transmission reliability, network robustness against node failures, and potential reduction in energy consumption. This work studies the feasibility of implementing WMSNs in mesh topologies and their limitations by means of exhaustive computer simulation experiments. To this end, a module developed for the Synchronous Energy Saving (SES) mode of the IEEE 802.15.5 mesh standard has been integrated with multimedia tools to thoroughly test video sequences encoded using H.264 in mesh networks. PMID:27164106

  16. Home healthcare settop-box for senior chronic care using ISO/IEEE 11073 PHD standard.

    PubMed

    Lim, Joon-Ho; Park, Chanyong; Park, Soo-Jun

    2010-01-01

    As the number of seniors with chronic disease increases, the need of home healthcare settop-box is increased to manage their chronic disease in their home environment. Using the home healthcare settop-box, the patients can regularly check their health data, and finally, it can lead the decrease of medical expenses. For the home healthcare settop-box, the most important factor is the standard compatibility, which can interoperate with standard devices of any other companies. In this paper, we propose a home healthcare settop-box using ISO/IEEE 11073 PHD standard. It collects health data according to the PHD standard, and provides a chronic-care service based on the collected data. The proposed settop-box is connected with 3 devices of weigh scale, blood pressure monitor, and glucose meter, and tested at 10 homes for a month. Lastly, the proposed settop-box can be used for various healthcare services such as Google Health and Telemedicine Services using a healthcare platform server.

  17. A Novel Current-Mode Differential Transconductance LNA for IEEE 802.11a Application

    NASA Astrophysics Data System (ADS)

    Tu, Yuxiang; Wang, Chunhua; Chen, Lei; Wu, Zhangbin; Zhang, Guangxiang

    2012-03-01

    In this paper, a novel current-mode differential transconductance low noise amplifier (LNA) designed in the chartered 0.18 μm CMOS technology is proposed to realize the receiver front-end. The proposed LNA frequency ranges from 4.7 GHz to 6 GHz,mainly targeting at IEEE802.11a application. It utilizes two stage structure, with a PMOS current-mirrorr using inductive series peaking technique to achieve optimized current output. The noise performance is improved through the use of a gm-boosting technique, while the gain performance is improved and power consumption is saved by using current-reused technique. Measured results demonstrate that the circuit provides flat transconductance gain higher than 17.0 dB, noise figure lower than 2.31 dB and low operating voltage of 0.85 V in frequency band. A comparison with other LNAs in similar and nearby frequency bands shows the proposed LNA has advantages of higher gain, lower noise figure and better other performances.

  18. An Enhanced Reservation-Based MAC Protocol for IEEE 802.15.4 Networks

    PubMed Central

    Afonso, José A.; Silva, Helder D.; Macedo, Pedro; Rocha, Luis A.

    2011-01-01

    The IEEE 802.15.4 Medium Access Control (MAC) protocol is an enabling standard for wireless sensor networks. In order to support applications requiring dedicated bandwidth or bounded delay, it provides a reservation-based scheme named Guaranteed Time Slot (GTS). However, the GTS scheme presents some drawbacks, such as inefficient bandwidth utilization and support to a maximum of only seven devices. This paper presents eLPRT (enhanced Low Power Real Time), a new reservation-based MAC protocol that introduces several performance enhancing features in comparison to the GTS scheme. This MAC protocol builds on top of LPRT (Low Power Real Time) and includes various mechanisms designed to increase data transmission reliability against channel errors, improve bandwidth utilization and increase the number of supported devices. A motion capture system based on inertial and magnetic sensors has been used to validate the protocol. The effectiveness of the performance enhancements introduced by each of the new features is demonstrated through the provision of both simulation and experimental results. PMID:22163826

  19. New IEEE 11073 Standards for interoperable, networked Point-of-Care Medical Devices.

    PubMed

    Kasparick, Martin; Schlichting, Stefan; Golatowski, Frank; Timmermann, Dirk

    2015-08-01

    Surgical procedures become more and more complex and the number of medical devices in an operating room (OR) increases continuously. Today's vendor-dependent solutions for integrated ORs are not able to handle this complexity. They can only form isolated solutions. Furthermore, high costs are a result of vendor-dependent approaches. Thus we present a service-oriented device communication for distributed medical systems that enables the integration and interconnection between medical devices among each other and to (medical) information systems, including plug-and-play functionality. This system will improve patient's safety by making technical complexity of a comprehensive integration manageable. It will be available as open standards that are part of the IEEE 11073 family of standards. The solution consists of a service-oriented communication technology, the so called Medical Devices Profile for Web Services (MDPWS), a Domain Information & Service Model, and a binding between the first two mechanisms. A proof of this concept has been done with demonstrators of real world OR devices.

  20. On the Feasibility of Wireless Multimedia Sensor Networks over IEEE 802.15.5 Mesh Topologies.

    PubMed

    Garcia-Sanchez, Antonio-Javier; Losilla, Fernando; Rodenas-Herraiz, David; Cruz-Martinez, Felipe; Garcia-Sanchez, Felipe

    2016-05-05

    Wireless Multimedia Sensor Networks (WMSNs) are a special type of Wireless Sensor Network (WSN) where large amounts of multimedia data are transmitted over networks composed of low power devices. Hierarchical routing protocols typically used in WSNs for multi-path communication tend to overload nodes located within radio communication range of the data collection unit or data sink. The battery life of these nodes is therefore reduced considerably, requiring frequent battery replacement work to extend the operational life of the WSN system. In a wireless sensor network with mesh topology, any node may act as a forwarder node, thereby enabling multiple routing paths toward any other node or collection unit. In addition, mesh topologies have proven advantages, such as data transmission reliability, network robustness against node failures, and potential reduction in energy consumption. This work studies the feasibility of implementing WMSNs in mesh topologies and their limitations by means of exhaustive computer simulation experiments. To this end, a module developed for the Synchronous Energy Saving (SES) mode of the IEEE 802.15.5 mesh standard has been integrated with multimedia tools to thoroughly test video sequences encoded using H.264 in mesh networks.

  1. ISO/IEEE 11073 PHD message generation toolkit to standardize healthcare device.

    PubMed

    Lim, Joon-Ho; Park, Chanyong; Park, Soo-Jun; Lee, Kyu-Chul

    2011-01-01

    As senior population increases, various healthcare devices and services are developed such as fall detection device, home hypertension management service, and etc. However, to vitalize healthcare devices and services market, standardization for interoperability between device and service must precede. To achieve the standardization goal, the IEEE 11073 Personal Health Device (PHD) group has been standardized many healthcare devices, but until now there are few devices compatible with the PHD standard. One of main reasons is that it isn't easy for device manufactures to implement standard communication module by analyzing standard documents of over 600 pages. In this paper, we propose a standard message generation toolkit to easily standardize existing non-standard healthcare devices. The proposed toolkit generates standard PHD messages using inputted device information, and the generated messages are adapted to the device with the standard state machine file. For the experiments, we develop a reference H/W, and test the proposed toolkit with three healthcare devices: blood pressure, weighting scale, and glucose meter. The proposed toolkit has an advantage that even if the user doesn't know the standard in detail, the user can easily standardize the non-standard healthcare devices.

  2. An SNMP-based solution to enable remote ISO/IEEE 11073 technical management.

    PubMed

    Lasierra, Nelia; Alesanco, Alvaro; García, José

    2012-07-01

    This paper presents the design and implementation of an architecture based on the integration of simple network management protocol version 3 (SNMPv3) and the standard ISO/IEEE 11073 (X73) to manage technical information in home-based telemonitoring scenarios. This architecture includes the development of an SNMPv3-proxyX73 agent which comprises a management information base (MIB) module adapted to X73. In the proposed scenario, medical devices (MDs) send information to a concentrator device [designated as compute engine (CE)] using the X73 standard. This information together with extra information collected in the CE is stored in the developed MIB. Finally, the information collected is available for remote access via SNMP connection. Moreover, alarms and events can be configured by an external manager in order to provide warnings of irregularities in the MDs' technical performance evaluation. This proposed SNMPv3 agent provides a solution to integrate and unify technical device management in home-based telemonitoring scenarios fully adapted to X73.

  3. Link Investigation of IEEE 802.15.4 Wireless Sensor Networks in Forests.

    PubMed

    Ding, Xingjian; Sun, Guodong; Yang, Gaoxiang; Shang, Xinna

    2016-06-27

    Wireless sensor networks are expected to automatically monitor the ecological evolution and wildlife habits in forests. Low-power links (transceivers) are often adopted in wireless sensor network applications, in order to save the precious sensor energy and then achieve long-term, unattended monitoring. Recent research has presented some performance characteristics of such low-power wireless links under laboratory or outdoor scenarios with less obstacles, and they have found that low-power wireless links are unreliable and prone to be affected by the target environment. However, there is still less understanding about how well the low-power wireless link performs in real-world forests and to what extent the complex in-forest surrounding environments affect the link performances. In this paper, we empirically evaluate the low-power links of wireless sensors in three typical different forest environments. Our experiment investigates the performance of the link layer compatible with the IEEE 802.15.4 standard and analyzes the variation patterns of the packet reception ratio (PRR), the received signal strength indicator (RSSI) and the link quality indicator (LQI) under diverse experimental settings. Some observations of this study are inconsistent with or even contradict prior results that are achieved in open fields or relatively clean environments and thus, provide new insights both into effectively evaluating the low-power wireless links and into efficiently deploying wireless sensor network systems in forest environments.

  4. Adaptive RTS threshold for maximum network throughput in IEEE 802.11 DCF

    NASA Astrophysics Data System (ADS)

    Yan, Shaohu; Zhuo, Yongning; Wu, Shiqi; Guo, Wei

    2004-04-01

    The IEEE 802.11 medium access control (MAC) protocol provides shared access to wireless channel. Its primary MAC technique is called distributed coordination function (DCF) that includes two packet transmission schemes, namely, basic access and RTS/CTS access mechanisms. In a "hybrid" network combining the two schemes, packets with payload longer than a given threshold (RTS Threshold) are transmitted according to the RTS/CTS mechanism. Based on delicate mathematical model, the average time in a successful and unsuccessful transmission is analyzed in the assumption of idea channel. Then the relation of network saturation throughput and RTS threshold was found and expressed in theoretical formula. We present the numerical techniques to find out the optimum RTS threshold that can maximize the network capacity. An adaptive RTS threshold adjust algorithm (ARTA), with which a station can automatically adjust its RTS threshold to the current optimum value, is also presented in detail. A special procedure is also developed to help ARTA in determination of station numbers. All theoretical analysis and algorithm are validated through computer simulation.

  5. IEEE 802.16 Packet Scheduling with Traffic Prioritization and Cross-Layer Optimization

    NASA Astrophysics Data System (ADS)

    Monteiro, João; Sargento, Susana; Gomes, Álvaro; Fontes, Francisco; Neves, Pedro

    WiMAX is emerging as a broadband wireless access technology to satisfy end user expectations, containing a new set of advantages in terms of throughput, coverage and QoS support at the MAC level which allows convergence of several different types of applications and services. For that reason, the allocation of resources or scheduling becomes of greater importance. This paper focuses on a cross-layer scheduling optimization solution for IEEE 802.16. The relevant features of the proposed packet scheduling optimization scheme consist: of prioritization of users within the same traffic class, allowing for example to an operator, differentiated treatment among users, for instance distinguishing between premium or gold users and silver users; and also cross layer optimization which implies radio resource optimization and a more effective scheduler decision. Simulation scenarios are presented to demonstrate how the scheduling solution allocates resources through particular WiMAX MAC layer implementation in the NS-2 simulator. Results show that the new mechanism implementation results in an improvement to the simple Round Robin fashion present in the original simulation model, being able to increase differentiation between different classes and decrease packets delay, due to its cross-layer processing and traffic prioritization.

  6. Design and implementation of an IEEE 802.11 baseband OFDM transceiver in 0.18 μm CMOS

    NASA Astrophysics Data System (ADS)

    Bin, Wu; Yumei, Zhou; Yongxu, Zhu; Zhengdong, Zhang; Jingjing, Cai

    2011-05-01

    An SISO IEEE 802.11 baseband OFDM transceiver ASIC is implemented. The chip can support all of the SISO IEEE 802.11 work modes by optimizing the key module and sharing the module between the transmitter and receiver. The area and power are decreased greatly compared with other designs. The baseband prototype has been verified under the WLAN baseband test equipment and through transferring the video. The 0.18 μm 1P/6M CMOS technology layout is finished and the chip is fabricated in SMIC, which occupies a 2.6 × 2.6 mm2 area and consumes 83 mW under typical work modes.

  7. Comparative Evaluation of Microshear Bond Strength of 5(th), 6(th) and 7(th) Generation Bonding Agents to Coronal Dentin Versus Dentin at Floor of Pulp Chamber: An In vitro Study.

    PubMed

    Deepa, Velagala Lakshmi; Damaraju, Bhargavi; Priyadharsini, Bollu Indira; Subbarao, Vummidisetti V; Raju, K Rama Krishna

    2014-09-01

    Lack of seal and adhesion between the final restoration and tooth structure adversely affects the results of root canal treatment. Lots of adhesive bonding agents are marketed to overcome this deficiency and achieve successful restoration. So the study compares and evaluates the micro shear bond strength of coronal dentin and pulp chamber dentin using three different generation dentin bonding systems and to know clinical efficiency for clinical use. DIFFERENT GENERATION DENTIN BONDING SYSTEMS USED WERE: (1) One bottle total etch system (XP Bond-5(th) generation), (2) Two-step self-etch system (Clearfil SE Bond-6(th) generation) and (3) All-in-one system (G Bond-7(th) generation). Thirty human mandibular molars were collected out of which sixty samples were prepared by sectioning each tooth into coronal dentin and pulpal floor dentin. They were divided into two major groups. Group I: 30 Coronal dentin samples. Group II:30 Pulpal floor dentin samples. Both the groups were further subdivided depending on the bonding agent used. Subgroup Ia:XP Bond, Subgroup Ib:Clearfil SE Bond, Subgroup Ic:G Bond, Subgroup IIa:XP Bond, Subgroup IIb:Clearfil SE Bond, Subgroup IIc:G Bond. Resin composite was bonded to these samples and tested for micro-shear bond strength. The mean bond strengths and standard deviations were calculated and analyzed using one-way ANOVA test and Student's t-test (unpaired) and honestly significant difference post-hoc tests. Coronal dentin showed higher values of micro shear bond strength than the pulpal floor dentin. All-in-one system (G Bond) showed least bond strength values to both the regions coronal dentin and pulpal floor dentin. Factors affecting the shear bond strength are dependent on material (adhesive system), substrate depth and adhesive/depth interaction. Hence composition and substrate treatment should be considered for good adhesive. Chemical composition of adhesive system determines clinical successes.

  8. Comparative Evaluation of Microshear Bond Strength of 5th, 6th and 7th Generation Bonding Agents to Coronal Dentin Versus Dentin at Floor of Pulp Chamber: An In vitro Study

    PubMed Central

    Deepa, Velagala Lakshmi; Damaraju, Bhargavi; Priyadharsini, Bollu Indira; Subbarao, Vummidisetti V; Raju, K Rama Krishna

    2014-01-01

    Background: Lack of seal and adhesion between the final restoration and tooth structure adversely affects the results of root canal treatment. Lots of adhesive bonding agents are marketed to overcome this deficiency and achieve successful restoration. So the study compares and evaluates the micro shear bond strength of coronal dentin and pulp chamber dentin using three different generation dentin bonding systems and to know clinical efficiency for clinical use. Materials and Methods: Different generation dentin bonding systems used were: (1) One bottle total etch system (XP Bond-5th generation), (2) Two-step self-etch system (Clearfil SE Bond-6th generation) and (3) All-in-one system (G Bond-7th generation). Thirty human mandibular molars were collected out of which sixty samples were prepared by sectioning each tooth into coronal dentin and pulpal floor dentin. They were divided into two major groups. Group I: 30 Coronal dentin samples. Group II:30 Pulpal floor dentin samples. Both the groups were further subdivided depending on the bonding agent used. Subgroup Ia:XP Bond, Subgroup Ib:Clearfil SE Bond, Subgroup Ic:G Bond, Subgroup IIa:XP Bond, Subgroup IIb:Clearfil SE Bond, Subgroup IIc:G Bond. Resin composite was bonded to these samples and tested for micro-shear bond strength. The mean bond strengths and standard deviations were calculated and analyzed using one-way ANOVA test and Student’s t-test (unpaired) and honestly significant difference post-hoc tests. Results: Coronal dentin showed higher values of micro shear bond strength than the pulpal floor dentin. All-in-one system (G Bond) showed least bond strength values to both the regions coronal dentin and pulpal floor dentin. Conclusion: Factors affecting the shear bond strength are dependent on material (adhesive system), substrate depth and adhesive/depth interaction. Hence composition and substrate treatment should be considered for good adhesive. Chemical composition of adhesive system determines

  9. Report on the 6th scientific meeting of the "Verein zur Förderung des Wissenschaftlichen Nachwuchses in der Neurologie" (NEUROWIND e.V.) held in Motzen, Germany, Oct. 31th - Nov. 2nd, 2014.

    PubMed

    Kleinschnitz, Christoph; Linker, Ralf A; Magnus, Tim; Korn, Thomas; Meuth, Sven G

    2015-01-01

    From October 31th - November 2nd, 2014, the 6th NEUROWIND e.V. meeting was held in Motzen, Brandenburg, Germany. 70 doctoral students and postdocs from over 25 different groups working in German and Swiss university hospitals or research institutes attended the meeting to discuss their latest experiments and findings in the fields of neuroimmunology, neurodegeneration and neurovascular research. The meeting was regarded as a very well organized platform to support research of young investigators in Germany and all participants enjoyed the stimulating environment for lively in depth discussions. According to the major aim of NEUROWIND e.V. to support younger researchers in Germany the 4th NEUROWIND YOUNG SCIENTIST AWARD for experimental neurology was awarded to Michael Breckwoldt on his work in the group of Thomas Misgeld (Institute of Neuronal Cell Biology, Technische Universität München, Germany). The successful project was published in Nature Medicine entitled "Multiparametric optical analysis of mitochondrial redox signals during neuronal physiology and pathology in vivo". This outstanding paper deals with a molecular imaging approach in living mice to optically analyze the role of mitochondrial redox signals in axons in health and disease. The award is endowed with 20.000 Euro sponsored by Merck Serono GmbH, Darmstadt, Germany (unrestricted educational grant). This year's keynote lecture was given by Bernhard Hemmer, Head of the Department of Neurology at the Klinikum rechts der Isar, Technische Universität München. Dr. Hemmer highlighted the particular role of B cells and (auto)antibodies in multiple sclerosis (MS). As a new highlight Dr. Urbahns, head of global discovery technologies at Merck research laboratories, gave insights from research practice in the pharmaceutical industry and introduced a shift in the view on present-day drug discovery paradigms.

  10. [Execution and quality of attention paid to medical doctoral theses at the faculty of medicine at the University of Würzburg as seen by the doctoral candidates in their 5th and 6th year of study].

    PubMed

    Diez, C; Arkenau, C; Meyer-Wentrup, F

    2002-07-01

    The significance of a doctoral thesis in medicine has been discussed controversially among medical students and faculty members. We examined in a brief but comprehensive study how medical students evaluate their research activities and whether or not alternative thesis models should be implemented. A questionnaire comprising 50 questions was evaluated from 160 5th and 6th year medical students at the University of Wuerzburg. Almost two-thirds of our interviewees started working on a thesis project at the beginning of the 4th year of study. 59 % of our participants reported to have neglected the regular study and 56 % said to have prolonged the regular study due to the work on a thesis. Despite considerable variation, the median time spent weekly on a thesis project was 10 hours, independent of where the students worked. The median grade of satisfaction during the whole thesis was rated at 6.5 as assessed on an analogous scale from 1-10 (very satisfied). The research results from 94 students contributed to 164 articles (already published or in press) and the results of 110 students were presented at scientific meetings. Only 50 % of our interviewees were pleased with their published output and the importance of student research activities for the overall German biomedical research was rated 4.4 as assessed on an analogous scale from 1-10 (very important). 70 % of our interviewees preferred defined research periods and 47 % would apply for dual-degree research programmes. The scientific significance of a MD thesis in comparison to a PhD thesis was rated at 2.1 on an analogous scale from 1-5 (5 = equally significant). The current German research model might be modified and defined research periods and dual-degree research programmes as a one possible alternative should be considered.

  11. Error detecting capabilities of the shortened Hamming codes adopted for error detection in IEEE Standard 802.3

    NASA Technical Reports Server (NTRS)

    Fujiwara, Toru; Kasami, Tadao; Lin, Shu

    1989-01-01

    The error-detecting capabilities of the shortened Hamming codes adopted for error detection in IEEE Standard 802.3 are investigated. These codes are also used for error detection in the data link layer of the Ethernet, a local area network. The weight distributions for various code lengths are calculated to obtain the probability of undetectable error and that of detectable error for a binary symmetric channel with bit-error rate between 0.00001 and 1/2.

  12. Error detecting capabilities of the shortened Hamming codes adopted for error detection in IEEE Standard 802.3

    NASA Technical Reports Server (NTRS)

    Fujiwara, Toru; Kasami, Tadao; Lin, Shu

    1989-01-01

    The error-detecting capabilities of the shortened Hamming codes adopted for error detection in IEEE Standard 802.3 are investigated. These codes are also used for error detection in the data link layer of the Ethernet, a local area network. The weight distributions for various code lengths are calculated to obtain the probability of undetectable error and that of detectable error for a binary symmetric channel with bit-error rate between 0.00001 and 1/2.

  13. Dynamic subframe allocation for mobile broadband m-health using IEEE 802.16j mobile multihop relay networks.

    PubMed

    Alinejad, Ali; Istepanian, R S H; Philip, N

    2012-01-01

    The concept of 4G health will be one of the key focus areas of future m-health research and enterprise activities in the coming years. WiMAX technology is one of the constituent 4G wireless technologies that provides broadband wireless access (BWA). Despite the fact that WiMAX is able to provide a high data rate in a relatively large coverage; this technology has specific limitations such as: coverage, signal attenuation problems due to shadowing or path loss, and limited available spectrum. The IEEE 802.16j mobile multihop relay (MMR) technology is a pragmatic solution designed to overcome these limitations. The aim of IEEE 802.16j MMR is to expand the IEEE 802.16e's capabilities with multihop features. In particular, the uplink (UL) and downlink (DL) subframe allocation in WiMAX network is usually fixed. However, dynamic frame allocation is a useful mechanism to optimize uplink and downlink subframe size dynamically based on the traffic conditions through real-time traffic monitoring. This particular mechanism is important for future WiMAX based m-health applications as it allows the tradeoff in both UL and DL channels. In this paper, we address the dynamic frame allocation issue in IEEE 802.16j MMR network for m-health applications. A comparative performance analysis of the proposed approach is validated using the OPNET Modeler(®). The simulation results have shown an improved performance of resource allocation and end-to-end delay performance for typical medical video streaming application.

  14. Service Differentiated and Adaptive CSMA/CA over IEEE 802.15.4 for Cyber-Physical Systems

    PubMed Central

    Gao, Ruixia

    2013-01-01

    Cyber-Physical Systems (CPS) that collect, exchange, manage information, and coordinate actions are an integral part of the Smart Grid. In addition, Quality of Service (QoS) provisioning in CPS, especially in the wireless sensor/actuator networks, plays an essential role in Smart Grid applications. IEEE 802.15.4, which is one of the most widely used communication protocols in this area, still needs to be improved to meet multiple QoS requirements. This is because IEEE 802.15.4 slotted Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) employs static parameter configuration without supporting differentiated services and network self-adaptivity. To address this issue, this paper proposes a priority-based Service Differentiated and Adaptive CSMA/CA (SDA-CSMA/CA) algorithm to provide differentiated QoS for various Smart Grid applications as well as dynamically initialize backoff exponent according to traffic conditions. Simulation results demonstrate that the proposed SDA-CSMA/CA scheme significantly outperforms the IEEE 802.15.4 slotted CSMA/CA in terms of effective data rate, packet loss rate, and average delay. PMID:24260021

  15. Performance Analysis of IEEE 802.15.6 CSMA/CA Protocol for WBAN Medical Scenario through DTMC Model.

    PubMed

    Kumar, Vivek; Gupta, Bharat

    2016-12-01

    The newly drafted IEEE 802.15.6 standard for Wireless Body Area Networks (WBAN) has been concentrating on a numerous medical and non-medical applications. Such short range wireless communication standard offers ultra-low power consumption with variable data rates from few Kbps to Mbps in, on or around the proximity of the human body. In this paper, the performance analysis of carrier sense multiple access with collision avoidance (CSMA/CA) scheme based on IEEE 802.15.6 standard in terms of throughput, reliability, clear channel assessment (CCA) failure probability, packet drop probability, and end-to-end delay has been presented. We have developed a discrete-time Markov chain (DTMC) to significantly evaluate the performances of IEEE 802.15.6 CSMA/CA under non-ideal channel condition having saturated traffic condition including node wait time and service time. We also visualize that, as soon as the payload length increases the CCA failure probability increases, which results in lower node's reliability. Also, we have calculated the end-to-end delay in order to prioritize the node wait time cause by backoff and retransmission. The user priority (UP) wise DTMC analysis has been performed to show the importance of the standard especially for medical scenario.

  16. Service differentiated and adaptive CSMA/CA over IEEE 802.15.4 for Cyber-Physical Systems.

    PubMed

    Xia, Feng; Li, Jie; Hao, Ruonan; Kong, Xiangjie; Gao, Ruixia

    2013-01-01

    Cyber-Physical Systems (CPS) that collect, exchange, manage information, and coordinate actions are an integral part of the Smart Grid. In addition, Quality of Service (QoS) provisioning in CPS, especially in the wireless sensor/actuator networks, plays an essential role in Smart Grid applications. IEEE 802.15.4, which is one of the most widely used communication protocols in this area, still needs to be improved to meet multiple QoS requirements. This is because IEEE 802.15.4 slotted Carrier Sense Multiple Access/Collision Avoidance (CSMA/CA) employs static parameter configuration without supporting differentiated services and network self-adaptivity. To address this issue, this paper proposes a priority-based Service Differentiated and Adaptive CSMA/CA (SDA-CSMA/CA) algorithm to provide differentiated QoS for various Smart Grid applications as well as dynamically initialize backoff exponent according to traffic conditions. Simulation results demonstrate that the proposed SDA-CSMA/CA scheme significantly outperforms the IEEE 802.15.4 slotted CSMA/CA in terms of effective data rate, packet loss rate, and average delay.

  17. Performance evaluation of reactive and proactive routing protocol in IEEE 802.11 ad hoc network

    NASA Astrophysics Data System (ADS)

    Hamma, Salima; Cizeron, Eddy; Issaka, Hafiz; Guédon, Jean-Pierre

    2006-10-01

    Wireless technology based on the IEEE 802.11 standard is widely deployed. This technology is used to support multiple types of communication services (data, voice, image) with different QoS requirements. MANET (Mobile Adhoc NETwork) does not require a fixed infrastructure. Mobile nodes communicate through multihop paths. The wireless communication medium has variable and unpredictable characteristics. Furthermore, node mobility creates a continuously changing communication topology in which paths break and new one form dynamically. The routing table of each router in an adhoc network must be kept up-to-date. MANET uses Distance Vector or Link State algorithms which insure that the route to every host is always known. However, this approach must take into account the adhoc networks specific characteristics: dynamic topologies, limited bandwidth, energy constraints, limited physical security, ... Two main routing protocols categories are studied in this paper: proactive protocols (e.g. Optimised Link State Routing - OLSR) and reactive protocols (e.g. Ad hoc On Demand Distance Vector - AODV, Dynamic Source Routing - DSR). The proactive protocols are based on periodic exchanges that update the routing tables to all possible destinations, even if no traffic goes through. The reactive protocols are based on on-demand route discoveries that update routing tables only for the destination that has traffic going through. The present paper focuses on study and performance evaluation of these categories using NS2 simulations. We have considered qualitative and quantitative criteria. The first one concerns distributed operation, loop-freedom, security, sleep period operation. The second are used to assess performance of different routing protocols presented in this paper. We can list end-to-end data delay, jitter, packet delivery ratio, routing load, activity distribution. Comparative study will be presented with number of networking context consideration and the results show

  18. Guaranteeing QoE in Audio-Video Transmission by IEEE 802.11e HCCA

    NASA Astrophysics Data System (ADS)

    Noh, Zul Azri Bin Muhamad; Suzuki, Takahiro; Tasaka, Shuji

    This paper studies packet scheduling schemes with QoE (user-level QoS) guarantee for audio-video transmission in a wireless LAN with HCF controlled channel access (HCCA) of the IEEE 802.11e MAC protocol. We first propose the static scheduling (SS) scheme, which grants adjustable transmission opportunity (TXOP) duration for constant bit rate (CBR) traffic. The SS scheme can determine the minimum TXOP duration capable of guaranteeing high QoE; it can maximize the number of admitted flows. As the burstiness of variable bit rate (VBR) traffic cannot be absorbed by the SS scheme, we also propose the multimedia priority dynamic scheduling (MPDS) scheme, which can absorb the burstiness through allocating additional TXOP duration. We then compare the SS scheme, the MPDS scheme, and the reference scheduler (TGe scheme) in terms of application-level QoS and user-level QoS (QoE). Numerical results show that in the SS scheme, the QoE can be kept relatively higher even when the TXOP duration is reduced in the case of video with the I picture pattern; this implies that more flows can be admitted. In the case of video with the IPPPPP picture pattern, which has the VBR characteristic more remarkably, reducing the TXOP duration according to the SS scheme will deteriorate the QoS level. In this case, the MPDS scheme performs better when the number of multimedia stations is small. However, the performance of the MPDS scheme deteriorates with the increase of the number of multimedia stations, though the results are comparable to or even better than those of the SS and TGe schemes.

  19. Optimizing the MAC Protocol in Localization Systems Based on IEEE 802.15.4 Networks

    PubMed Central

    Claver, Jose M.; Ezpeleta, Santiago

    2017-01-01

    Radio frequency signals are commonly used in the development of indoor localization systems. The infrastructure of these systems includes some beacons placed at known positions that exchange radio packets with users to be located. When the system is implemented using wireless sensor networks, the wireless transceivers integrated in the network motes are usually based on the IEEE 802.15.4 standard. But, the CSMA-CA, which is the basis for the medium access protocols in this category of communication systems, is not suitable when several users want to exchange bursts of radio packets with the same beacon to acquire the radio signal strength indicator (RSSI) values needed in the location process. Therefore, new protocols are necessary to avoid the packet collisions that appear when multiple users try to communicate with the same beacons. On the other hand, the RSSI sampling process should be carried out very quickly because some systems cannot tolerate a large delay in the location process. This is even more important when the RSSI sampling process includes measures with different signal power levels or frequency channels. The principal objective of this work is to speed up the RSSI sampling process in indoor localization systems. To achieve this objective, the main contribution is the proposal of a new MAC protocol that eliminates the medium access contention periods and decreases the number of packet collisions to accelerate the RSSI collection process. Moreover, the protocol increases the overall network throughput taking advantage of the frequency channel diversity. The presented results show the suitability of this protocol for reducing the RSSI gathering delay and increasing the network throughput in simulated and real environments. PMID:28684666

  20. Optimizing the MAC Protocol in Localization Systems Based on IEEE 802.15.4 Networks.

    PubMed

    Pérez-Solano, Juan J; Claver, Jose M; Ezpeleta, Santiago

    2017-07-06

    Radio frequency signals are commonly used in the development of indoor localization systems. The infrastructure of these systems includes some beacons placed at known positions that exchange radio packets with users to be located. When the system is implemented using wireless sensor networks, the wireless transceivers integrated in the network motes are usually based on the IEEE 802.15.4 standard. But, the CSMA-CA, which is the basis for the medium access protocols in this category of communication systems, is not suitable when several users want to exchange bursts of radio packets with the same beacon to acquire the radio signal strength indicator (RSSI) values needed in the location process. Therefore, new protocols are necessary to avoid the packet collisions that appear when multiple users try to communicate with the same beacons. On the other hand, the RSSI sampling process should be carried out very quickly because some systems cannot tolerate a large delay in the location process. This is even more important when the RSSI sampling process includes measures with different signal power levels or frequency channels. The principal objective of this work is to speed up the RSSI sampling process in indoor localization systems. To achieve this objective, the main contribution is the proposal of a new MAC protocol that eliminates the medium access contention periods and decreases the number of packet collisions to accelerate the RSSI collection process. Moreover, the protocol increases the overall network throughput taking advantage of the frequency channel diversity. The presented results show the suitability of this protocol for reducing the RSSI gathering delay and increasing the network throughput in simulated and real environments.