WorldWideScience

Sample records for biosciences program fourth

  1. Environmental Biosciences Program Fourth Quarter Report

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2004-06-30

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene (TCE), polychlorinated biphenyls (PCBs), asbestos and low-dose ionizing radiation. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making.

  2. Environmental Biosciences Program Fourth Quarter Report

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.d.

    2003-04-30

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific program, employing a range of research initiatives to identify, study and resolve environmental health risk issues. These initiatives are consistent with the Medical University's role as a comprehensive state-supported health sciences institution and the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable the Medical University to be a national resource for the scientific investigation of environmental health issues. EBP's success in convening worldwide scientific expertise is due in part to the inherent credibility the Medical University brings to the process of addressing these complex issues.

  3. Environmental Biosciences Program Fourth Quarter Report

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2005-06-30

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation s need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems. Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene (TCE), polychlorinated biphenyles (PCBs), and low-dose ionizing radiation. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making. Questions, comments or requests for further information concerning the activities under this cooperative agreement can be forwarded to Dr. Lawrence C. Mohr in the EBP office of the Medical University of South Carolina at (843) 792-1532.

  4. Environmental Biosciences Program Quarterly Report

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2007-07-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene and low-dose ionizing radiation. Work on the trichloroethylene research projects has been slowed as a result of funding uncertainties. The impact of these funding uncertainties has been discussed with the DOE. Plans for restructuring the performance schedule of the trichloroethylene projects have been submitted to the department. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making. Questions, comments or requests for further information concerning the activities under this

  5. Environmental Biosciences Program Quarterly Report

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2006-10-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene and low-dose ionizing radiation. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making. Questions, comments or requests for further information concerning the activities under this cooperative agreement can be forwarded to Dr. Lawrence C. Mohr in the EBP office of the Medical University of South Carolina at (843) 792-1532.

  6. Environmental Biosciences Program Quarterly Report

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2008-01-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene and low-dose ionizing radiation. Work on the trichloroethylene research projects has been slowed as a result of funding uncertainties. The impact of these funding uncertainties has been discussed with the DOE. Plans for restructuring the performance schedule of the trichloroethylene projects have been submitted to the department. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making.

  7. Environmental Biosciences Program Quarterly Report

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2009-01-30

    Current research projects have focused Environmental Biosciences Program (EBP) talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene, low-dose ionizing radiation (gamma and neutron) and alpha radiation from plutonium. Trichloroethylene research has been conducted as a joint collaborative effort with the University of Georgia. Work on the trichloroethylene research projects has been slowed as a result of funding uncertainties. The impact of these funding uncertainties has been discussed with the United States Department of Energy (DOE). Laboratory work has been completed on several trichloroethylene risk assessment projects, and these projects have been brought to a close. Plans for restructuring the performance schedule of the remaining trichloroethylene projects have been submitted to the department. A comprehensive manuscript on the scientific basis of trichloroethylene risk assessment is in preparation. Work on the low-dose radiation risk assessment projects is also progressing at a slowed rate as a result of funding uncertainties. It has been necessary to restructure the proponency and performance schedule of these projects, with the project on Low-Dose Radiation: Epidemiology Risk Models transferred to DOE Office of Science proponency under a separate funding instrument. Research on this project will continue under the provisions of the DOE Office of Science funding instrument, with progress reported in accordance with the requirements of that funding instrument. Progress on that project will no longer be reported in quarterly reports for DE-FC09-02CH11109. Following a meeting at the Savannah River Site on May 8, 2008, a plan was submitted for development of an epidemiological cohort study and prospective medical surveillance system for the assessment of disease rates among workers at the Savannah River

  8. The Bioscience Nuclear Microscopy Program at LLNL

    Energy Technology Data Exchange (ETDEWEB)

    Bench, G.; Freeman, S.; Roberts, M.; Sideras-Haddad, E.

    1996-12-31

    Since initiation in mid 1994, a bioscience nuclear microscopy program at Livermore has enabled collaboration with bio-scientists on a variety of projects requiring quantitative elemental microanalysis. For microprobe analysis a combination of PIXE and STIM are typically used; respectively generating element distribution maps with micron scale spatial resolution, and projected densities and histological information with sub-micron spatial resolution. Current studies demonstrate the applicability of nuclear microscopy (particularly when combined with other analysis techniques) in environmental tracing, toxicology, carcinogenesis, and structural biology. The program currently uses {approximately}10 percent of the available time on a 10 MV tandem accelerator that is also applied to a variety of Accelerator Mass Spectrometry and other microprobe programs. The completion of a dedicated nuclear microprobe system, using a 5 SDH NEC 1.7 MV tandem accelerator and employing several energy dispersive x-ray detectors to improve x-ray counting rates, promises increased accelerator access, greater sample throughput and continued expansion of the program.

  9. Environmental Biosciences Program Report for Year 2

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2005-10-15

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems. Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene (TCE), polychlorinated biphenyls (PCBs), and low-dose ionizing radiation. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making.

  10. Environmental Biosciences Program Third Quarter Report

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2004-03-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene (TCE), polychlorinated biphenyls (PCBs), asbestos and low-dose ionizing radiation. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making.

  11. Environmental Biosciences Program Second Quarter Report

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2003-12-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene (TCE), polychlorinated biphenyls (PCBs), asbestos and low-dose ionizing radiation. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making.

  12. Environmental Biosciences Program Report for Year Three

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2006-07-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene and low-dose ionizing radiation. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making.

  13. Second Quarter Report Environmental Biosciences Program

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2002-10-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific program, employing a range of research initiatives to identify, study and resolve environmental health risk issues. These initiatives are consistent with the Medical University's role as a comprehensive state-supported health sciences institution and the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable the Medical University to be a national resource for the scientific investigation of environmental health issues. EBP's success in convening worldwide scientific expertise is due in part to the inherent credibility the Medical University brings to the process of addressing these complex issues.

  14. Environmental Biosciences Program Third Quarter Report

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2003-01-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific program, employing a range of research initiatives to identify, study and resolve environmental health risk issues. These initiatives are consistent with the Medical University's role as a comprehensive state-supported health sciences institution and the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable the Medical University to be a national resource for the scientific investigation of environmental health issues. EBP's success in convening worldwide scientific expertise is due in part to the inherent credibility the Medical University brings to the process of addressing these complex issues.

  15. Environmental Biosciences Program Second Quarter Report

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2004-12-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene (TCE), polychlorinated biphenyls (PCBs), and low-dose ionizing radiation. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making. Questions, comments or requests for further information concerning the activities under this cooperative agreement can be forwarded to Dr. Lawrence C. Mohr in the EBP office of the Medical University of South Carolina at (843) 792-1532.

  16. Environmental Biosciences Program Report for Year 3

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2007-04-30

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems. Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene and low-dose ionizing radiation. Work on the trichloroethylene research projects has been slowed as a result of funding uncertainties. The impact of these funding uncertainties has been discussed with the DOE. Plans for restructuring the performance schedule of the trichloroethylene projects have been submitted to the department. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making. Questions, comments or requests for further information concerning the activities under this

  17. Environmental Biosciences Program Quarterly Report for Year 3

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2006-04-30

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems. Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene and low-dose ionizing radiation. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making.

  18. Environmental Biosciences Program Third Quarter Report, Year 2

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2005-03-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene (TCE), polychlorinated biphenyls (PCBs), and low-dose ionizing radiation. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making.

  19. MUSC Environmental Biosciences Program First Quarter Report May - June, 2002

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr

    2002-07-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC02-98CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific program, employing a range of research initiatives to identify, study and resolve environmental health risk issues. These initiatives are consistent with the Medical University's role as a comprehensive state-supported health sciences institution and the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable the Medical University to be a national resource for the scientific investigation of environmental health issues. EBP's success in convening worldwide scientific expertise is due in part to the inherent credibility the Medical University brings to the process of addressing these complex issues.

  20. Some vistas of modern mathematics dynamic programming, invariant imbedding, and the mathematical biosciences

    CERN Document Server

    Bellman, Richard

    2015-01-01

    Rapid advances in the physical and biological sciences and in related technologies have brought about equally farreaching changes in mathematical research. Focusing on control theory, invariant imbedding, dynamic programming, and quasilinearization, Mr. Bellman explores with ease and clarity the mathematical research problems arising from scientific questions in engineering, physics, biology, and medicine. Special attention is paid in these essays to the use of the digital computer in obtaining the numerical solution of numerical problems, its influence in the formulation of new and old scient

  1. Proceedings Fourth Workshop on Mathematically Structured Functional Programming

    CERN Document Server

    Chapman, James; 10.4204/EPTCS.76

    2012-01-01

    This volume contains the proceedings of the Fourth Workshop on Mathematically Structured Functional Programming (MSFP 2012), taking place on 25 March, 2012 in Tallinn, Estonia, as a satellite event of the European Joint Conferences on Theory and Practice of Software, ETAPS 2012. MSFP is devoted to the derivation of functionality from structure. It highlights concepts from algebra, semantics and type theory as they are increasingly reflected in programming practice, especially functional programming. The workshop consists of two invited presentations and eight contributed papers on a range of topics at that interface.

  2. Minutes of the fourth SALE program participants meeting

    International Nuclear Information System (INIS)

    This report is a documentation of the presentations made to the Fourth Safeguards Analytical Laboratory Evaluation (S.A.L.E.) Program Participants Meeting at Argonne, Illinois, July 8-9, 1981. The meeting was sponsored by the US Department of Energy and was coordinated by the S.A.L.E. Program of the New Brunswick Laboratory. The objective of the meeting was to provide a forum through which administration of the Program and methods appropriate to the analysis of S.A.L.E. Program samples could be discussed. The Minutes of the Meeting is a collection of presentations by the speakers at the meeting and of the discussions following the presentations. The presentations are included as submitted by the speakers. The discussion sections were transcribed from tape recordings of the meeting and were edited to clarify and emphasize important comments. Seventeen papers have been abstracted and indexed

  3. Environmental Biosciences Quarterly Report

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2007-01-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems. Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene and low-dose ionizing radiation. Work on the trichloroethylene research projects has been slowed as a result of funding uncertainties. The impact of these funding uncertainties has been discussed with the DOE. Plans for restructuring the performance schedule of the trichloroethylene projects have been submitted to the department. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making. Questions, comments or requests for further information concerning the activities under this

  4. Quality Teacher Induction: "Fourth-Wave" (1997-2006) Induction Programs

    Science.gov (United States)

    Wood, Ann L.; Stanulis, Randi Nevins

    2009-01-01

    The purpose of this essay is to describe quality teacher induction that has evolved from "fourth-wave" (1997-2006) teacher induction program development and research. A definition of quality induction is proposed, and a set of induction goals and components are outlined. Understandings gained from fourth-wave programs are described, including ways…

  5. The Effects of a Teacher-Guided Library Selection Program on Fourth-Grade Reading Achievement

    Science.gov (United States)

    Weber, Sherri M.

    2009-01-01

    The purpose of this mixed methods study was to examine the impact that a teacher-guided library selection program had on overall reading scores and how this program may or may not promote reading improvement of fourth-grade students at a small suburban school in western New York. Forty fourth graders were used as the sample population, which was…

  6. The Savannah River Site Groundwater Monitoring Program Fourth Quarter 2000 (October thru December 2000)

    Energy Technology Data Exchange (ETDEWEB)

    Dukes, M.D.

    2001-08-02

    This report summarizes the Groundwater Monitoring Program conducted by SRS during fourth quarter 2000. It includes the analytical data, field data, data review, quality control, and other documentation for this program.

  7. KDE Bioscience: platform for bioinformatics analysis workflows.

    Science.gov (United States)

    Lu, Qiang; Hao, Pei; Curcin, Vasa; He, Weizhong; Li, Yuan-Yuan; Luo, Qing-Ming; Guo, Yi-Ke; Li, Yi-Xue

    2006-08-01

    Bioinformatics is a dynamic research area in which a large number of algorithms and programs have been developed rapidly and independently without much consideration so far of the need for standardization. The lack of such common standards combined with unfriendly interfaces make it difficult for biologists to learn how to use these tools and to translate the data formats from one to another. Consequently, the construction of an integrative bioinformatics platform to facilitate biologists' research is an urgent and challenging task. KDE Bioscience is a java-based software platform that collects a variety of bioinformatics tools and provides a workflow mechanism to integrate them. Nucleotide and protein sequences from local flat files, web sites, and relational databases can be entered, annotated, and aligned. Several home-made or 3rd-party viewers are built-in to provide visualization of annotations or alignments. KDE Bioscience can also be deployed in client-server mode where simultaneous execution of the same workflow is supported for multiple users. Moreover, workflows can be published as web pages that can be executed from a web browser. The power of KDE Bioscience comes from the integrated algorithms and data sources. With its generic workflow mechanism other novel calculations and simulations can be integrated to augment the current sequence analysis functions. Because of this flexible and extensible architecture, KDE Bioscience makes an ideal integrated informatics environment for future bioinformatics or systems biology research. PMID:16260186

  8. The Fourth R: A School-Based Adolescent Dating Violence Prevention Program

    Directory of Open Access Journals (Sweden)

    David A. Wolfe

    2011-07-01

    Full Text Available This paper presents a school-based primary prevention program (The Fourth R to prevent adolescent dating violence, and related risk behaviors. The cornerstone of The Fourth R is a 21-lesson skillbased curriculum delivered by teachers who receive specialized training, that promotes healthy relationships, and targets violence, high-risk sexual behavior, and substance use among adolescents. The Fourth R was evaluated in a cluster randomized trial in 20 schools. Results indicated that teaching youth healthy relationships and skills as part of their curriculum reduced physical dating violence, and increased condom use 2.5 years later.

  9. Low-income-rental-housing programs in the Fourth District

    OpenAIRE

    Matthew Klesta; Frank Manzo; Francisca Richter; Mark S. Sniderman

    2013-01-01

    In the aftermath of the Great Recession, many policy analysts are rethinking national housing policies, including affordable housing programs. We review the literature to compare the largest tenant-based (housing choice voucher or HCV) and place-based (low-income-housing tax credit or LIHTC) programs with respect to cost efficiency and access to better quality neighborhoods. We also provide an overview of low-income-rental-housing policy trends and perform a rough comparison of neighborhood q...

  10. The Savannah River Site`s Groundwater Monitoring Program. Fourth quarter 1992

    Energy Technology Data Exchange (ETDEWEB)

    1993-05-17

    This report summarizes the Savannah River Site (SRS) groundwater monitoring program conducted by the Environmental Protection Department`s Environmental Monitoring Section (EPD/EMS) during the fourth quarter of 1992. It includes the analytical data, field data, data review, quality control, and other documentation for this program, provides a record of the program`s activities; and serves as an official document of the analytical results.

  11. Environmental Biosciences First Quarter Report

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2003-09-30

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risk issues. These initiatives are consistent with the Medical University's role as a comprehensive state-supported health sciences institution and the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable the Medical University to be a national resource for the scientific investigation of environmental health issues. EBP's success in convening worldwide scientific expertise is due in part to the inherent credibility the Medical University brings to the process of addressing these complex issues. Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene (TCE), polychlorinated biphenyls (PCBs), asbestos and low-dose ionizing radiation. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making.

  12. The Savannah River Site`s Groundwater Monitoring Program. Fourth quarter, 1989

    Energy Technology Data Exchange (ETDEWEB)

    1989-12-31

    The Environmental Monitoring Section of the Environmental and Health Protection (EHP) Department administers the Savannah River Site`s Groundwater Monitoring Program. During fourth quarter 1989 (October--December), EHP conducted routine sampling of monitoring wells and drinking water locations. EHP collected the drinking water samples from Savannah River Site (SRS) drinking water systems supplied by wells. EHP established two sets of flagging criteria in 1986 to assist in the management of sample results. The flagging criteria aid personnel in sample scheduling, interpretation of data, and trend identification. An explanation of flagging criteria for the fourth quarter is presented in the Flagging Criteria section of this document. All analytical results from fourth quarter 1989 are listed in this report, which is distributed to all waste-site custodians.

  13. Fourth annual report of the Canadian nuclear fuel waste management program

    International Nuclear Information System (INIS)

    This report, the fourth of a series of annual reports, reviews the progress that has been made in the research and development program for the safe management and disposal of Canada's nuclear fuel waste. The report summarizes activities over the past year in the following areas: public interaction, used fuel storage and transportation, immobilization of used fuel and fuel recycle waste, geoscience research associated with deep underground disposal, environmental research, environmental and safety assessment

  14. Extrinsic Motivators Affecting Fourth-Grade Students' Interest and Enrollment in an Instrumental Music Program

    Science.gov (United States)

    Vasil, Martina

    2013-01-01

    The purpose of this study was to investigate fourth-grade students' extrinsic motivators for joining and continuing in a school instrumental music program. Three research questions were investigated: (a) What extrinsic motivators have influenced fourth-grade students' initial interest and continuing participation in an instrumental music…

  15. The Savannah River Site`s Groundwater Monitoring Program. Fourth quarter, 1990

    Energy Technology Data Exchange (ETDEWEB)

    1991-06-18

    This report summarizes the Savannah River Site (SRS) groundwater monitoring program conducted in the fourth quarter of 1990. It includes the analytical data, field data, well activity data, and other documentation for this program, provides a record of the program`s activities and rationale, and serves as an official document of the analytical results. The groundwater monitoring program includes the following activities: installation, maintenance, and abandonment of monitoring wells, environmental soil borings, development of the sampling and analytical schedule, collection and analyses of groundwater samples, review of analytical and other data, maintenance of the databases containing groundwater monitoring data, quality assurance (QA) evaluations of laboratory performance, and reports of results to waste-site facility custodians and to the Environmental Protection Section (EPS) of EPD.

  16. The Savannah River Site's Groundwater Monitoring Program: Fourth quarter 1991

    Energy Technology Data Exchange (ETDEWEB)

    Rogers, C.D. (Westinghouse Savannah River Co., Aiken, SC (United States))

    1992-06-02

    The Environmental Protection Department/Environmental Monitoring Section (EPD/EMS) administers the Savannah River Site's (SRS) Groundwater Monitoring Program. During fourth quarter 1991, EPD/EMS conducted extensive sampling of monitoring wells. EPD/EMS established two sets of criteria in 1986 to assist in the management of sample results. The flagging criteria do not define contamination levels; instead, they aid personnel in sample scheduling, interpretation of data, and trend identification. Beginning in 1991, the flagging criteria are based on EPA drinking water standards and method detection limits. A detailed explanation of the current flagging criteria is presented in the Flagging Criteria section of this document. Analytical results from fourth quarter 1991 are listed in this report.

  17. The Savannah River Site`s Groundwater Monitoring Program: Fourth quarter 1991

    Energy Technology Data Exchange (ETDEWEB)

    Rogers, C.D. [Westinghouse Savannah River Co., Aiken, SC (United States)

    1992-06-02

    The Environmental Protection Department/Environmental Monitoring Section (EPD/EMS) administers the Savannah River Site`s (SRS) Groundwater Monitoring Program. During fourth quarter 1991, EPD/EMS conducted extensive sampling of monitoring wells. EPD/EMS established two sets of criteria in 1986 to assist in the management of sample results. The flagging criteria do not define contamination levels; instead, they aid personnel in sample scheduling, interpretation of data, and trend identification. Beginning in 1991, the flagging criteria are based on EPA drinking water standards and method detection limits. A detailed explanation of the current flagging criteria is presented in the Flagging Criteria section of this document. Analytical results from fourth quarter 1991 are listed in this report.

  18. The Savannah River Site`s Groundwater Monitoring Program. Fourth quarter 1988

    Energy Technology Data Exchange (ETDEWEB)

    1989-12-31

    The Environmental Monitoring Group of the Health Protection Department administers the Savannah River Site`s Groundwater Monitoring Program. During fourth quarter 1988 (October--December), routine sampling of monitoring wells and drinking water locations was performed. The drinking water samples were collected from Savannah River Site (SRS) drinking water systems supplied by wells. Two sets of flagging criteria were established in 1986 to assist in the management of sample results. The flagging criteria do not define contamination levels; instead they aid personnel in sample scheduling, interpretation of data, and trend identification. The flagging criteria are based on detection limits, background levels in SRS groundwater, and drinking water standards. An explanation of flagging criteria for the fourth quarter is presented in the Flagging Criteria section of this document. The drinking water samples were analyzed for radioactive constituents.

  19. The Savannah River Site's Groundwater Monitoring Program - Fourth Quarter 1999 (October through December 1999)

    Energy Technology Data Exchange (ETDEWEB)

    Hutchison, J.B.

    2000-10-12

    This report summarizes the Groundwater Monitoring Program conducted by the Savannah River site during fourth quarter 1999. It includes the analytical data, field data, data review, quality control, and other documentation for this program; provides a record of the program's activities; and serves as an official records of the analytical results.

  20. Fourth conference on radiation protection and dosimetry: Proceedings, program, and abstracts

    Energy Technology Data Exchange (ETDEWEB)

    Casson, W.H.; Thein, C.M.; Bogard, J.S. [eds.

    1994-10-01

    This Conference is the fourth in a series of conferences organized by staff members of Oak Ridge National Laboratory in an effort to improve communication in the field of radiation protection and dosimetry. Scientists, regulators, managers, professionals, technologists, and vendors from the United States and countries around the world have taken advantage of this opportunity to meet with their contemporaries and peers in order to exchange information and ideas. The program includes over 100 papers in 9 sessions, plus an additional session for works in progress. Papers are presented in external dosimetry, internal dosimetry, radiation protection programs and assessments, developments in instrumentation and materials, environmental and medical applications, and on topics related to standards, accreditation, and calibration. Individual papers are indexed separately on EDB.

  1. Proceedings of the fourth annual participants' information meeting, DOE Low-Level Waste Management Program

    International Nuclear Information System (INIS)

    The Fourth Annual Participants' Information Meeting of the Department of Energy Low-Level Waste Management Program was held in Denver, Colorado, August 31 to September 2, 1982. The purpose of the meeting was to report and evaluate technology development funded by the program and to examine mechanisms for technology transfer. The meeting consisted of an introductory plenary session, followed by two concurrent overview sessions and then six concurrent technical sessions. There were two group meetings to review the findings of the technical sessions. The meeting concluded with a plenary summary session in which the major findings of the meeting were addressed. All papers have been abstracted and indexed for the Energy Data Base

  2. Examining Variations in Fourth-Grade Children's Participation in School Breakfast and Lunch Programs by Student and Program Demographics

    Science.gov (United States)

    Guinn, Caroline H.; Baxter, Suzanne Domel; Finney, Christopher J.; Hitchcock, David B.

    2013-01-01

    Purpose/Objectives: Analyses were conducted to examine variations in fourth-grade children's participation in school-breakfast and school-lunch programs by weekday, month, socioeconomic status, absenteeism, gender, and school-breakfast location. Methods: Fourth-grade children were participants in a dietary-reporting validation study during…

  3. Environmental Biosciences Quarterly Report, September - December, 2005

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2006-01-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems. Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene (TCE), polychlorinated biphenyls (PCBs), and low-dose ionizing radiation. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk-based decision-making.

  4. Environmental Biosciences Report for Year 3

    Energy Technology Data Exchange (ETDEWEB)

    Lawrence C. Mohr, M.D.

    2007-10-31

    In May 2002, the United States Department of Energy (DOE) signed Assistance Instrument Number DE-FC09-02CH11109 with the Medical University of South Carolina (MUSC) to support the Environmental Biosciences Program (EBP). This funding instrument replaces DOE Assistance Instrument Number DE-FC02-98CH10902. EBP is an integrated, multidisciplinary scientific research program, employing a range of research initiatives to identify, study and resolve environmental health risks. These initiatives are consistent with the MUSC role as a comprehensive state-supported health sciences institution and with the nation's need for new and better approaches to the solution of a complex and expansive array of environment-related health problems. The intrinsic capabilities of a comprehensive health sciences institution enable MUSC to be a national resource for the scientific investigation of environmental health issues. EBPs success as a nationally prominent research program is due, in part, to its ability to task-organize scientific expertise from multiple disciplines in addressing these complex problems Current research projects have focused EBP talent and resources on providing the scientific basis for risk-based standards, risk-based decision making and the accelerated clean-up of widespread environmental hazards. These hazards include trichloroethylene and low-dose ionizing radiation. Work on the trichloroethylene research projects has been slowed as a result of funding uncertainties. The impact of these funding uncertainties has been discussed with the DOE. Plans for restructuring the performance schedule of the trichloroethylene projects have been submitted to the department. A project is also being conducted in the use of geographical information system technology to analyze population health risks related to environmental hazards as a tool for risk based decision-making. Questions, comments or requests for further information concerning the activities under this

  5. Fourth annual progress report for Canada's Climate Change Voluntary Challenge and Registry program

    International Nuclear Information System (INIS)

    Examples of how greenhouse gas issues are being integrated into management processes within Suncor Energy Inc. are described in this fourth annual progress report to the Climate Change Voluntary Challenge and Registry Program. The report covers Suncor's three operating businesses - oil sands and conventional oil exploration and production in Western Canada, and refining and marketing operation in Ontario. Oil sands was the largest source of greenhouse emissions, accounting for 2/3 of the total. Carbon dioxide emissions accounted for 93 per cent of total emissions. This report addresses three areas of change: one of these is Project Millennium in the oil sands division, which is a major expansion project planned for efficiency improvements. As a result of the project, total greenhouse gas emissions will increase to 9.3 million tonnes by the year 2002, in terms of operating efficiency, emissions per unit of production will continue to decline from 0.54 tonnes ECO2 in 1990 to 0.44 tonnes ECO2 in 2002, a reduction of 18 per cent. Another change is that target reductions in the Kyoto Protocol will supersede informal Canadian commitments for the year 2000, if the protocol is ratified. Thirdly, Suncor's greenhouse gas emission forecast has been extended to the year 2002 to demonstrate the impact of Project Millennium and to clarify the changes during the transition period relative to previous forecasts. New initiatives to be undertaken during 1998-2002 include heat recovery in new upgrader units, recycling diluent used in bitumen extraction without cooling, recovery of gas presently going to the flare system, installation of a 200,000 barrel hot water surge tank, addition of a third turbogenerator, and various projects to generate more electrical power internally. tabs., figs

  6. The impact of an experiential science program on fourth-grade students' knowledge of and feelings about ecological science

    Science.gov (United States)

    Loman, Karen Lynn

    Problem. EarthWorks, an experiential science program of The Learning Exchange, is designed to place children in authentic, real-life situations within which they can engage in problem-solving situations utilizing critical thinking skills. The program consists of three components: a pre-visit curriculum, an on-site visit to the EarthWorks learning laboratory, and a follow-up curriculum. EarthWorks is a new program to The Learning Exchange. There are no baseline data available to determine the effectiveness of the program. Purpose. The present study was designed to evaluate the impact of an experiential science program, EarthWorks, on fourth-grade students' understanding of ecological science and feelings toward science. Participants in the study were fourth-grade students who participated in one of three intervention groups: students enrolled in the complete EarthWorks program, including curriculum and on-site experience; students completing the EarthWorks curriculum only; and students completing the traditional science program. Individual student feedback, gathered by a questionnaire, was analyzed for a test of differences at each phase of the intervention and for the degree of impact of each different intervention. Procedures. Fourth-grade students from three different schools in a large urban city in Missouri participated in the study. Elementary School A's fourth-grade level participated in the complete EarthWorks program. Elementary School B's fourth-grade level completed only the curriculum portion of the EarthWorks program. Elementary School C did not participate in any part of the EarthWorks program. Students were asked to complete questionnaires at four points during the study: (1) September, before Schools A and B began the EarthWorks curriculum; (2) late October, after Schools A and B completed the EarthWorks curriculum and before School A had the on-site experience; (3) mid November, Schools A and B completed the EarthWorks curriculum and School A had

  7. The effects of a classroom-based social skills training program on the levels of assertiveness and aggressiveness of fourth-grade elementary school students

    OpenAIRE

    Aslı Uz Baş

    2010-01-01

    The purpose of this study is examine the effects of an classroom-based social skills training program on assertiveness and aggressiveness of fourth-grade elementary students. Subjects of the study are composed of 51 fourth-grade students. Twenty five of these students are assigned to experimental group and 26 of them are assigned to control group. Social skills training program was implemented to the experimental group for 10 weeks. However, no procedure was applied to the control group. The ...

  8. Understanding the current anatomical competence landscape: Comparing perceptions of program directors, residents, and fourth-year medical students.

    Science.gov (United States)

    Fillmore, Erin P; Brokaw, James J; Kochhar, Komal; Nalin, Peter M

    2016-07-01

    A mixed methods survey of fourth-year medical students, resident physicians, and residency program directors at the Indiana University School of Medicine gathered perceptions of anatomical competence-defined as the anatomical education necessary for effective clinical practice. The survey items explored numerous aspects of anatomical competence, including the most effective modes of instruction, perceptions of readiness for clinical practice, and specific suggestions for improving anatomical education during medical school and residency. The response rate was 46% for fourth-year medical students, 47% for residents (as graduates from 137 medical schools), and 71% for program directors. A majority of students and residents reported that their course in Gross Anatomy prepared them well for clinical practice; that cadaveric dissection was important in the early development of their anatomical competence; and that placing a greater emphasis on clinical relevance in medical school would have improved their anatomical competence even further. However, in terms of anatomical preparedness upon entering residency, the program directors rated their residents less prepared than the residents rated themselves. All three groups agreed that there is need for additional opportunities for anatomical educational during medical school and residency. Suggestions for improving anatomical education included the following: providing more opportunities for cadaveric dissection during medical school and residency; more consistent teaching of anatomy for clinical practice; more workshops that review anatomy; and better integration of anatomy with the teaching of other subjects during medical school. Anat Sci Educ 9: 307-318. © 2015 American Association of Anatomists. PMID:26632977

  9. The Application of Magnetic Techniques in Biosciences

    OpenAIRE

    Safarikova, M.; Safarik, I.

    2001-01-01

    The idea to use magnetic techniques in biosciences is not new, but it has enjoyed a resurgence of interest especially during the last two decades. Magnetic adsorbents, carriers and modifiers can be used for the immobilization, isolation, modification, detection, determination and removal of a variety of biologically active compounds, xenobiotics, cellular components and cells. Magnetic separation and labelling have recently found many useful and interesting applications in various areas of bi...

  10. Nitrogen-15 reference book: medicine and biosciences

    International Nuclear Information System (INIS)

    A comprehensive bibliography on the application of the stable nitrogen isotope 15N in medicine, animal nutrition and physiology, biosciences, and related disciplines is presented. The literature pertaining to this paper covers the period from 1977 to 1981. The references are completed by an index of all authors and a subject index with special emphasis to the used organisms, labelled compounds, and tracer techniques, respectively. (author)

  11. Developing Research Capabilities in Energy Biosciences

    Energy Technology Data Exchange (ETDEWEB)

    Brown, Donald D

    2008-01-01

    Scientists founded the Life Sciences Research Foundation (LSRF) in 1983 as a non-profit pass through foundation that awards post doctoral fellowships in all areas of the life sciences. LSRF scientists review hundreds of applications each year from PhDs seeking support. For example this year, our 26th, we received 800 applications and our peer review committee will choose about 50 finalists who are eligible for these awards. We have no endowment so we solicit sponsors each year. The fellowships are sponsored by research oriented companies, foundations, philanthropists, the Howard Hughes Medical Institute, and other organizations who believe in the value of awarding fellowships to the best and the brightest young scientists. Our web site has a complete listing of all details about LSRF (http://www.lsrf.org/). In the late 1980s the Division of Bioscience in the Office of Basic Energy Science, a granting agency of the Department of Energy, joined this partnership. Bioscience's mandate was to support non-medical microbiology and plant sciences. LSRF received a series of 5 year grants from DOE to award fellowships to our top applicants in these fields of research. We began to support DOE-Energy Bioscience post doctoral fellows in 1989. From 1989 through 2004 when DOE funding ended our partnership awarded 41 DOE-Energy Bioscience Fellows of the Life Sciences Research Foundation. Each of these was a three year fellowship. DOE-Energy Biosciences was well matched with LSRF. Our extensive peer review screened applicants in all areas of the life sciences. Most LSRF sponsors are interested in supporting fellows who work on diseases. At the time that we began our partnership with DOE we had no sponsors willing to support plant biology and non medical microbiology. For 15 years DOE played a major role in the training of the very best young scientists in these important fields of research simply through its support of LSRF post doctoral fellows. Young scientists interested in

  12. Proceedings of the fourth annual participants' information meeting, DOE Low-Level Waste Management Program

    Energy Technology Data Exchange (ETDEWEB)

    Large, D.E.: Mezga, L.J.; Stratton, L.E.; Rose, R.R. (comps.)

    1982-10-01

    The Fourth Annual Participants' Information Meeting of the Department of Energy Low-Level Waste Management Program was held in Denver, Colorado, August 31 to September 2, 1982. The purpose of the meeting was to report and evaluate technology development funded by the program and to examine mechanisms for technology transfer. The meeting consisted of an introductory plenary session, followed by two concurrent overview sessions and then six concurrent technical sessions. There were two group meetings to review the findings of the technical sessions. The meeting concluded with a plenary summary session in which the major findings of the meeting were addressed. All papers have been abstracted and indexed for the Energy Data Base.

  13. Division of Agro technology and Biosciences: Past, Present and Future

    International Nuclear Information System (INIS)

    In presenter speech, he outlined several topics regarding development of Agro technology and Biosciences Division from 31 years ago. This division started with Unit Sains Hidupan Liar under PUSPATI in 1981 and change their names to Program Isotop dan Sinaran dalam Biologi dan Pertanian under Nuclear Technology Unit (UTN) (1983). In 1990 their premise change to MINT-Tech Park. This program responsible for conducting research in agro technology using nuclear technology. Several achievements achieved by this division since established. They also succeed in mutating banana namely Novaria banana (1994), Tongkat Ali rice (1990), ground nut (2003), orchids, organic fertilizer and foliage in 2000. The vision of this division are to promote and enhance innovation and applications in nuclear technology to achieve security in food productivity, safety and quality and ecological awareness for economics competitiveness and vibrancy in agrobioindustry and community development. (author)

  14. Introducing bioinformatics, the biosciences' genomic revolution

    CERN Document Server

    Zanella, Paolo

    1999-01-01

    The general audience for these lectures is mainly physicists, computer scientists, engineers or the general public wanting to know more about what’s going on in the biosciences. What’s bioinformatics and why is all this fuss being made about it ? What’s this revolution triggered by the human genome project ? Are there any results yet ? What are the problems ? What new avenues of research have been opened up ? What about the technology ? These new developments will be compared with what happened at CERN earlier in its evolution, and it is hoped that the similiraties and contrasts will stimulate new curiosity and provoke new thoughts.

  15. Proceedings of the black liquor research program review fourth meeting held July 28--30, 1987

    Energy Technology Data Exchange (ETDEWEB)

    Emerson, D. B.; Whitworth, B. A.

    1987-10-01

    Research programs, presented at the black liquor review meeting are described. Research topics include the following: Cooperative Program in Kraft Recovery; Black Liquor Physical Properties; Viscosity of Strong Black Liquor; Ultrafiltration of Kraft Black Liquor; Molecular Weight Distribution of Kraft Lignin; Black Liquor Droplet Formation Project; Fundamental Studies of Black Liquor Combustion; Black Liquor Combustion Sensors; Flash X-ray Imagining of Black Liquor Sprays; Laser Induced Fluorescence For Process Control In The Pulp and Paper Industry; Recovery Boiler Optimization; Black Liquor Gasification and Use of the Products in Combined-Cycle Cogeneration; Black Liquor Steam Plasma Automization; The B and W Pyrosonic 2000R System; Monsteras Boiler Control System; and Cooperative Program Project Reviews. Individual projects are processed separately for the data bases.

  16. Fourth update of the Energy Economic Data Base (EEDB) Program. Phase IV, Final report. Volume I

    Energy Technology Data Exchange (ETDEWEB)

    Allen, R.E.; Brown, P.E.; Kaminski, R.S.; Smith, M.H.; Ziegler, E.J.

    1981-09-01

    EEDB deals with the development of cost data for nuclear and comparison electric power plants. Its objective is to provide periodic updates of technical and cost (capital, fuel and operating and maintenance) information for use in evaluating and monitoring US civilian nuclear power programs. It contains six nuclear power plant technical models and five comparison coal-fired fossil power plant technical models. (DLC)

  17. DOE KSU EV Site Operator Program. Year 1, fourth quarter report, April 1--June 30, 1992

    Energy Technology Data Exchange (ETDEWEB)

    Hague, J.R.; Steinert, R.A.; Nissen-Pfrang, T.

    1992-08-01

    Kansas State University, with funding from federal, state, public, and private companies, is participating in the DOE Electric Vehicle Site Operator Program. Kansas State is demonstrating, testing, and evaluating electric of hybrid vehicle technology. This will provide organizations the opportunity to examine the latest EHV prototypes under actual operating conditions. KSU proposes to purchase one (1) electric or hybrid van and four(4) electric cars during the first two years of this five-year program. KSU has purchased one G-Van built by Conceptor Industries, Toronto, Canada and has initiated a procurement order to purchase two (2) Soleq 1992 Ford EVcort station wagons. This quarter`s report describes ongoing public relations activities and meetings as well as presenting performance data for the electric vehicles. (GHH)

  18. Electric and Hybrid Vehicle Program, Site Operator Program. Quarterly progress report for July through September 1994 (Fourth quarter of fiscal year 1994)

    Energy Technology Data Exchange (ETDEWEB)

    Kiser, D.M.; Brown, H.L.

    1995-03-01

    The Site Operator Program was initially established by the Department of Energy (DOE) to incorporate the electric vehicle activities dictated by the Electric and Hybrid Vehicle Research, Development and Demonstration Act of 1976. In the ensuing years, the Program has evolved in response to new legislation and interests. The Program currently includes twelve sites located in diverse geographic, metrologic, and metropolitan areas across the US. Information is shared reciprocally with a thirteenth site, not under Program contract. The vehicles are operator-owned, except for two Griffon vans. The Mission Statement of the Site Operator Program includes three major activities: advancement of electric vehicle technologies; development of infrastructure elements necessary to support significant electric vehicle use; and increasing the awareness and acceptance of electric vehicles (EVs) by the public. The current participants in the Site Operator Program are shown. The ultimate thrust of program activities varies among sites, reflecting not only the Operator`s business interests but also geographic and climate-related operating conditions. This fourth quarter report (FY-94) includes a summary of activities from the previous three quarters. The report section sequence has been revised to provide a more easily seen program overview, and specific operator activities are now found in Appendix A.

  19. Lessons on Ethical Decision Making from the Bioscience Industry

    OpenAIRE

    Novas, Carlos

    2006-01-01

    Novas discusses the implications of a new study in PLoS Medicine, in which executives and senior managers from bioscience firms were asked what their companies were doing to promote ethical behaviour.

  20. Introducing Advances in Bioscience and Clinical Medicine (ABCmed)

    OpenAIRE

    Samad EJ Golzari; Kamyar Ghabili

    2013-01-01

    We are pleased to announce the launch of the Advances in Bioscience and Clinical Medicine (ABCmed), aninternational open-access, and peer-reviewed journal. Mostly intended to cover all areas of bioscience and medicine, theJournal would provide a unique venue for the scientists from all over the world to publish their scientific works. One ofthe advantages of publishing with us is the rapid yet rigorous review process which is mostly performed by ourdistinguished Editorial and Review Board mem...

  1. Division of energy biosciences: Annual report and summaries of FY 1995 activities

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-04-01

    The mission of the Division of Energy Biosciences is to support research that advances the fundamental knowledge necessary for the future development of biotechnologies related to the Department of Energy`s mission. The departmental civilian objectives include effective and efficient energy production, energy conservation, environmental restoration, and waste management. The Energy Biosciences program emphasizes research in the microbiological and plant sciences, as these understudied areas offer numerous scientific opportunities to dramatically influence environmentally sensible energy production and conservation. The research supported is focused on the basic mechanisms affecting plant productivity, conversion of biomass and other organic materials into fuels and chemicals by microbial systems, and the ability of biological systems to replace energy-intensive or pollutant-producing processes. The Division also addresses the increasing number of new opportunities arising at the interface of biology with other basic energy-related sciences such as biosynthesis of novel materials and the influence of soil organisms on geological processes.

  2. The ACCM Beamlines For Bioscience Studies

    International Nuclear Information System (INIS)

    To meet the increasing demand of X-ray beamlines for bioscience research, we have designed two high-performance, side-branch, asymmetric-cut curved crystal monochromator (ACCM) beamlines to fully utilize the sideway output of the superconducting wiggler SW6 at NSRRC. Each of these two beamlines (BL13A and BL13C) collects 1 mrad of the radiation fan in the horizontal direction, one centered at 3 mrad and the other at 4 mrad away from the central line of the wiggler output. The newly designed ACCMs are capable of energy scanning from 12 keV to 14 keV and offer good performances in terms of flux, resolution and stability. The ACCMs are designed and built in-house, combining efficient cooling and bending mechanisms in a compact unit that allows precise adjustments on a goniometer assembly. The bender is specially designed with symmetrically driven piezo-actuators that minimize center displacement during bending. Both direct and indirect cooling methods were tested; the former using Ga/In directly under the beam footprint and the latter using both sides of the crystal clamping area for cooling. Performance of the beamlines employing both cooling methods has been measured. The indirect cooling method provides 4.9 x 1010 photons/sec through a pair of 100 μm slits (H x V) with energy resolution of 5.3 x 10-3 (ΔE/E) at 12.7 keV. Higher energy resolution in the 10-4 range can be achieved by adjusting the horizontal source fan or the crystal radius at the expense of flux. The direct cooling method provides 1.4 x 1010 photons/sec through a pair of 100 μm slits (H x V) with energy resolution of 1.2 x 10-3 (ΔE/E) at 12.7 keV. The FWHM of the focused beam profile in the indirect cooling mode is 800 x 109 μm (H x V), and 800 x 283 μm (H x V) in the direct cooling mode with some horizontal tail, the latter being larger due to influence of the Ga/In layer on the crystal shape. Cooling efficiency is excellent in the direct cooling mode, in which the performance stabilizes in a

  3. A Study of the Effectiveness of a Character Education Program to Prevent Bullying in Fourth and Seventh Grade

    Science.gov (United States)

    Shapiro, Deborah J.

    2012-01-01

    The purpose of this study is to assess whether bullying behaviors were impacted by the character education curriculum "Character Counts!" in fourth and seventh grade students. More specifically, over time are the perceptions that the students had of bullying behaviors impacted and is there a difference between the perceptions that boys…

  4. Teaching and learning about bioscience ethics with undergraduates.

    Science.gov (United States)

    Van Rooy, Wilhelmina; Pollard, Irina

    2002-01-01

    Bioscience ethics acts as a practical interface between science and bioethics. It links scientific endeavour and its application into adaptive forms of bioethical consensus. Its major elements are increased understanding of biological systems, responsible use of technology, and curtailment of ethnocentric debates in tune with new scientific insights. This paper briefly describes the students' learning experience gained from the vacation unit BIOL 240, Introduction to Bioscience Ethics, as taught in biology, Macquarie University. On the basis of our evidence students were overwhelmingly positive about their learning because the unit assisted them to better face dilemmas that arise from the application of science and technology. The structure also provided active engagement with the subject matter and preferred learning environments that supported and contested their understanding of concepts relevant to bioscience and bioethics. PMID:14741947

  5. Challenges in Understanding Photosynthesis in a University Introductory Biosciences Class

    Science.gov (United States)

    Södervik, Ilona; Virtanen, Viivi; Mikkilä-Erdmann, Mirjamaija

    2015-01-01

    University students' understanding of photosynthesis was examined in a large introductory biosciences class. The focus of this study was to first examine the conceptions of photosynthesis among students in class and then to investigate how a certain type of text could enhance students' understanding of photosynthesis. The study was based on pre-…

  6. Effectiveness of "Fun"tastic Nutrition ProgramSM on Nutrition knowledge and Dietary Behavior of Fourth- and Fifth-Grade Students

    Directory of Open Access Journals (Sweden)

    Tabitha Farr

    2015-03-01

    Full Text Available There is a lack of evidence for the effectiveness of school programs that develop healthy habits, this is critical given the rising concerns related to childhood obesity. The aim of this study was to assess the effectiveness of a comprehensive nutrition education program in improving nutrition knowledge and behaviors among elementary aged students involving four elementary schools in greater St. Louis metropolitan area, inclusive of East St. Louis, Illinois. Educational lessons providing a comprehensive curriculum of nutrition and health education including interactive lectures, activities, and demonstrations were divided among six topics: My Plate; digestion; heart health; food label reading; skeletal system and calcium; and healthy snacking were evaluated by assessing preand post- surveys to determine changes in knowledge and behavior. Results concluded that a short-term nutrition intervention using a comprehensive nutrition and health education curriculum has the capacity to increase nutrition knowledge in an ethnically diverse population of fourth- and fifth grade students.

  7. Dispatches from the Interface of Salivary Bioscience and Neonatal Research

    OpenAIRE

    KristinVoegtline; DouglasA.Granger

    2014-01-01

    The emergence of the interdisciplinary field of salivary bioscience has created opportunity for neonatal researchers to measure multiple components of biological systems non-invasively in oral fluids. The implications are profound and potentially high impact. From a single oral fluid specimen, information can be obtained about a vast array of biological systems (e.g., endocrine, immune, autonomic nervous system) and the genetic polymorphisms related to individual differences in their function...

  8. Bioscience methodologies in physical chemistry an engineering and molecular approach

    CERN Document Server

    D'Amore, Alberto

    2013-01-01

    The field of bioscience methodologies in physical chemistry stands at the intersection of the power and generality of classical and quantum physics with the minute molecular complexity of chemistry and biology. This book provides an application of physical principles in explaining and rationalizing chemical and biological phenomena. It does not stick to the classical topics that are conventionally considered as part of physical chemistry; instead it presents principles deciphered from a modern point of view, which is the strength of this book.

  9. Fluorescence lifetime imaging in biosciences: technologies and applications

    Institute of Scientific and Technical Information of China (English)

    Raluca NIESNER; Karl-Heinz GERICKE

    2008-01-01

    The biosciences require the development of methods that allow a non-invasive and rapid investigation of biological systems. In this aspect, high-end imaging tech-niques allow intravital microscopy in real-time, providing information on a molecular basis. Far-field fluorescence imaging techniques are some of the most adequate methods for such investigations. However, there are great differences between the common fluorescence imaging techniques, i.e., wide-field, confocal one-photon and two-photon microscopy, as far as their applicability in diverse bioscientific research areas is concerned. In the first part of this work, we briefly compare these techniques. Standard methods used in the biosciences, i.e., steady-state techniques based on the analy-sis of the total fluorescence signal originating from the sam-ple, can successfully be employed in the study of cell, tissue and organ morphology as well as in monitoring the macro-scopic tissue function. However, they are mostly inadequate for the quantitative investigation of the cellular function at the molecular level. The intrinsic disadvantages of steady-state techniques are countered by using time-resolved tech-niques. Among these fluorescence lifetime imaging (FLIM) is currently the most common. Different FLIM principles as well as applications of particular relevance for the biosci-ences, especially for fast intravital studies are discussed in this work.

  10. Division of Energy Biosciences annual report and summaries of FY 1996 activities

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-04-01

    The mission of the Division of Energy Biosciences is to support research that advances the fundamental knowledge necessary for the future development of biotechnologies related to the Department of Energy`s mission. The departmental civilian objectives include effective and efficient energy production, energy conservation, environmental restoration, and waste management. The Energy Biosciences program emphasizes research in the microbiological and plant sciences, as these understudied areas offer numerous scientific opportunities to dramatically influence environmentally sensible energy production and conservation. The research supported is focused on the basic mechanism affecting plant productivity, conversion of biomass and other organic materials into fuels and chemicals by microbial systems, and the ability of biological systems to replace energy-intensive or pollutant-producing processes. The Division also addresses the increasing number of new opportunities arising at the interface of biology with other basic energy-related sciences such as biosynthesis of novel materials and the influence of soil organisms on geological processes. This report gives summaries on 225 projects on photosynthesis, membrane or ion transport, plant metabolism and biosynthesis, carbohydrate metabolism lipid metabolism, plant growth and development, plant genetic regulation and genetic mechanisms, plant cell wall development, lignin-polysaccharide breakdown, nitrogen fixation and plant-microbial symbiosis, mechanism for plant adaptation, fermentative microbial metabolism, one and two carbon microbial metabolism, extremophilic microbes, microbial respiration, nutrition and metal metabolism, and materials biosynthesis.

  11. Kansas State University: DOE/KEURP Site Operator Program. Year 4, fourth quarterly report, April 1, 1995--June 30, 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-08-01

    Kansas State University, in support of a DOE and Kansas Electric Utilities Research Program subject contract, continues to test, evaluate, demonstrate, and develop electric vehicle and infrastructure technology. K-State is operating two Soleq EVcort vehicles. During this reporting period both vehicles were brought back to full operational status after warranty service was completed by Soleq. Vehicle failures occurred due to three unrelated battery cable failures in addition to the replacement of one battery. Both vehicles are being operated on a routine basis. K-State, along with York Technical College, has established a relationship with Troy Design and Manufacturing (TDM) Redford, Michigan. K-State has ordered no less than four Ford Ranger electric trucks from TDM. K-State is involved in the steering committee that is monitoring and refining information to direct the design and testing of these new technology vehicles. TDM should become the first automotive manufacturer certified by one of the Big Three under their Quality Vehicle Manufacturer program. Kansas State University and the Kansas Electric Utility Research Program look forward to working with TDM on their new EV program.

  12. Strategic Change in Higher Education Libraries with the Advent of the Digital Library during the Fourth Decade of Program

    Science.gov (United States)

    Collier, Mel

    2006-01-01

    Purpose: This paper sets out to review how the business of libraries in higher education has changed with the impact of the digital library during the latest decade of Program, in which the content of the journal swung decisively from being primarily about library management systems to primarily being about digital library issues.…

  13. FY 1990 environmental research programs for the Nevada Operations Office. Work plan and quarterly reports, first through fourth quarter reports

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-11-01

    This work includes a wide range of research and support activities associated with the Weapons Testing Program conducted at the Nevada Test Site (NTS). Ongoing and new environmental research programs to be conducted by DRI over the period of this contract include archaeological studies and site mitigation plans; offsite community radiation monitoring support; environmental compliance activities related to state and federal regulations; hydrologic assessment of containment of underground nuclear detonations; hydrology/radionuclide investigations designed to better understand and predict the possible subsurface movement of radionuclides at the NTS; and support of various statistical and data management and design activities. In addition to these, archaeological and other activities will be carried out in support of the Yucca Mountain Project. Other areas of the overall program which require DRI support are classified security activities, radiation safety and training, quality assurance and control, computer protection and historical data management, derivative classification of DRI documents, and preparation of any special reports not included in the requirements of the individual projects.

  14. Systems Prototyping with Fourth Generation Tools.

    Science.gov (United States)

    Sholtys, Phyllis

    1983-01-01

    The development of information systems using an engineering approach that uses both traditional programing techniques and fourth generation software tools is described. Fourth generation applications tools are used to quickly develop a prototype system that is revised as the user clarifies requirements. (MLW)

  15. The Impact of a Cooperative Learning Program on the Academic Achievement in Mathematics and Language in Fourth Grade Students and its Relation to Cognitive Style

    Directory of Open Access Journals (Sweden)

    Mery Luz Vega-Vaca

    2015-07-01

    Full Text Available This study is expected to determine the impact of a program based on the cooperative learning methodology. This, in comparison to a traditional learning situation in both mathematics and language achievement. The study was carried out on a group of fourth grade students of primary school. In addition, it tried to find the differential impact according to the cognitive style in the field dependence-independence dimension. This work was carried out with 76 students of the Colegio José Martí I.E.D. (Bogotá-Colombia ranging from 8-12 years of age. The control group received a traditional teaching methodology and the experimental group received the cooperative learning program, composed of 35 sessions (from July to November 2009. All the participants were tested in mathematics and language performance, before and after the intervention. All of them were tested in cognitive style as well. The results suggested that the cooperative learning methodology benefited importantly the academic achievement of the students in mathematics in contrast to the competitive and individualist situations. The results also suggested that the three cognitive style groups were positively affected from the cooperative learning situation. These results were not found in the language area.

  16. Fort St. Vrain Nuclear Generating Station Environmental Radiation Surveillance Program. Summary report, third and fourth quarters, July-December 1982

    International Nuclear Information System (INIS)

    During the second half of 1982 the Fort St. Vrain Nuclear Generating Station produced power of 2.4 x that in the previous 6 month reporting period. The reactor did not operate during the first 3.5 months of 1982. Radioactivity released by normal effluent routes, however, was not negligible during the shut down period. This is due to scheduled clean-up and maintenance operations. A complete and detailed listing of radioactivity released by all effluent routes may be found in the Public Service Company of Colorado semi-annual Effluent Release Report to the U.S.N.R.C. When possible in this report any correlation of radioactivity in environmental samples with the effluent release data is discussed. The environmental sampling and analysis program was essentially identical to that used in the most recent reporting periods. Essentially all radioactivity data measured on this project are near background levels and, more importantly, near the minimum detectable activity (MDA) levels for each radionuclude and sample type

  17. Petro-Canada's progress 1998 : fourth annual report in support of Canada's climate change Voluntary Challenge and Registry program

    International Nuclear Information System (INIS)

    Petro-Canada is working with industry, environmental groups and with governments to define and implement measures to address the issue of climate change. This report describes the many voluntary measures that the company is taking within its own operations to achieve long-term emissions reductions. Petro-Canada is also an active participant in the Voluntary Challenge and Registry program which it has been supporting since its inception in 1995. This 1998 progress report outlines progress in reducing greenhouse gas emissions, future energy and emissions reduction goals, and the strategy to meet those goals. In 1997 the company reduced total greenhouse gas emissions by 2.8 per cent despite a 1.1 per cent increase in production of oil, natural gas and refined products. Petro-Canada has also set minimum energy efficiency targets of at least a one per cent improvement per year for both the upstream and downstream sectors. Reductions in 1997 were well ahead of these targets. Among major initiatives undertaken in 1997, Petro-Canada entered into a joint venture with Iogen Corp. of Ottawa to develop a promising alternative fuel technology. The process produces ethanol from biomass using bioengineered enzymes, with very low greenhouse gas emissions over the full life cycle of production and use. Petro-Canada provides funding for continuing research and development, and for construction of a plant in Ottawa to demonstrate the commercial potential of the process. 10 tabs., 9 figs., 1 appendix

  18. SBBN 2010: 7. Congress of the Brazilian Society of Nuclear Biosciences. Radiations in biosciences: advances and trends

    International Nuclear Information System (INIS)

    Advance and new perspectives related to the use of ionizing and no ionizing radiations in nuclear biosciences are presented. Multidisciplinary approach, including radiopharmacy, radioprotection and dosimetry, cytogenetic, biosafety, radioecology, environmental toxicology are studied. Topics of Nuclear medicine, radiotherapy and image diagnosis, such as computerized tomography, PET scan, phantoms, biomedical radiography, are reported. Use of radioisotopes, evaluation of radiation dose rates, radiation dose distribution, radiation monitoring is considered. Environmental impact of radiation are also in human beings, animals and for several purposes are analyzed. (MAC)

  19. Students Turned Off by Turnitin? Perception of Plagiarism and Collusion by Undergraduate Bioscience Students

    Science.gov (United States)

    Thompsett, Andrew; Ahluwalia, Jatinder

    2010-01-01

    Research on undergraduate bioscience students and the incidence of plagiarism is still in its infancy and a key problem arises in gauging the perception of undergraduate students on plagiarism and collusion in biosciences subjects because of the lack of empirical data. The aim of this study was to provide qualitative data on the perceptions of…

  20. Call for Papers-Bioscience Methods(ISSN 1925-1920)

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Bioscience Methods (BM) (ISSN 1925-1920) is a new launched, open access and peer-reviewed journal that dedicates to publish the original research papers involving in innovative technologies and novel experimental arts within the fields of biosciences.

  1. Applications of computational tools in biosciences and medical engineering

    CERN Document Server

    Altenbach, Holm

    2015-01-01

     This book presents the latest developments and applications of computational tools related to the biosciences and medical engineering. It also reports the findings of different multi-disciplinary research projects, for example, from the areas of scaffolds and synthetic bones, implants and medical devices, and medical materials. It is also shown that the application of computational tools often requires mathematical and experimental methods. Computational tools such as the finite element methods, computer-aided design and optimization as well as visualization techniques such as computed axial tomography open up completely new research fields that combine the fields of engineering and bio/medical. Nevertheless, there are still hurdles since both directions are based on quite different ways of education. Often even the “language” can vary from discipline to discipline.

  2. Dispatches from the Interface of Salivary Bioscience and Neonatal Research

    Directory of Open Access Journals (Sweden)

    KristinVoegtline

    2014-03-01

    Full Text Available The emergence of the interdisciplinary field of salivary bioscience has created opportunity for neonatal researchers to measure multiple components of biological systems non-invasively in oral fluids. The implications are profound and potentially high impact. From a single oral fluid specimen, information can be obtained about a vast array of biological systems (e.g., endocrine, immune, autonomic nervous system and the genetic polymorphisms related to individual differences in their function. The purpose of this review is to describe the state of the art for investigators interested in integrating these unique measurement tools into the current and next generation of research on gonadal steroid exposure during the prenatal and neonatal developmental periods

  3. Introducing Advances in Bioscience and Clinical Medicine (ABCmed

    Directory of Open Access Journals (Sweden)

    Samad EJ Golzari

    2013-07-01

    Full Text Available We are pleased to announce the launch of the Advances in Bioscience and Clinical Medicine (ABCmed, aninternational open-access, and peer-reviewed journal. Mostly intended to cover all areas of bioscience and medicine, theJournal would provide a unique venue for the scientists from all over the world to publish their scientific works. One ofthe advantages of publishing with us is the rapid yet rigorous review process which is mostly performed by ourdistinguished Editorial and Review Board members; this obviously hard-to-achieve goal would not be realized withouttheir continuous support and advice.Another distinguishing characteristic of ABCmed is the diversity of published items in each issue. The editorial team ofthe Journal has devoted separate sections to rather unknown yet interesting fields of the science for instance hypotheses,history of medicine, etc. In the first issue of ABCmed, the readers might refer to the two published hypotheseshighlighting the possible role of chamomile in the treatment of rheumatoid arthritis, and also the preventive effects oftadalafil together with nimodipine in subarachnoid hemorrhage-induced cerebral vasospasm.Letters to the Editor are one of the major sectors in the ABCmed providing not only further on the already publisheddata in the Journal, but also personal comments on the major public health concerns and medical issues. In the firstissue of the Journal, a very important cancer surgery complication is debated, introducing different strategies in the painmanagement of breast cancer patients.We hope that ABCmed will provide a basis to bring together the scientists from all over the globe with the same goal ofpromoting science.

  4. The fourth dimension

    CERN Document Server

    Rucker, Rudy

    2014-01-01

    ""This is an invigorating book, a short but spirited slalom for the mind."" - Timothy Ferris, The New York Times Book Review ""Highly readable. One is reminded of the breadth and depth of Hofstadter's Gödel, Escher, Bach."" - Science""Anyone with even a minimal interest in mathematics and fantasy will find The Fourth Dimension informative and mind-dazzling... [Rucker] plunges into spaces above three with a zest and energy that is breathtaking."" - Martin Gardner ""Those who think the fourth dimension is nothing but time should be encouraged to read The Fourth Dimension, along with anyone else

  5. The emerging fourth sector

    OpenAIRE

    Friis, Andreas

    2009-01-01

    The Fourth Sector is a new phenomenon related to dual social and financial value creation, until now not clearly defined with crisp sectoral boundaries and an operationalized definition. The phenomenon is getting increased attention in media, conferences, business schools and by organizations all over the world, and this study intends to explain the macroenvironmental changes that led to the rise of the fourth sector, describe new trends of social value creation in the private ...

  6. Annual report and summaries of FY 1993 activities: Division of Energy Biosciences

    Energy Technology Data Exchange (ETDEWEB)

    1993-09-01

    The mission of the Energy Biosciences program is to generate fundamental information about plants and non-health related microorganisms that will constitute the base for new biotechnologies as well as supply information to improve usages of such organisms in their current form. The collective aims are totally consistent with the Department of Energy`s objectives of developing alternate energy sources, replacements for otherwise fossil energy derived products and providing critical fundamental information for the preservation and restoration of environmental conditions affected by energy related activities. The EB program takes full advantage of its organizational locale in the Office of Basic Energy Sciences to directly interact with such disciplines as Materials Sciences, Chemistry, Engineering and Geosciences to promote cross-disciplinary research and planning activities. One of the major specific objectives of the EB program is to probe the enormous capabilities of the specified organisms to carry out biochemical conversions. The limitation to realization of entirely new products and processes via biotechnology is the lack of basic understanding of natural processes. Such knowledge will then afford the advantage of developing procedures to the benefit of people and their society in providing new products along with providing new employment possibilities. This document consists of abstracts of projects supported in FY 1993.

  7. Division of Energy Biosciences annual report and summaries of FY 1991 activities

    Energy Technology Data Exchange (ETDEWEB)

    1991-09-01

    As a component of the Department of Energy, the Energy Biosciences (EB) program of the Office of Basic Energy Sciences supports long-term research aimed at addressing energy-related problems utilizing biological systems. There are three main components of the EB program. The first, Primary Biological Energy Conversion, concentrates on research on plant and microbial photosynthesis, but also deals with plant growth control, stress reactions, and interaction with pathogens. The second, Bioconversion of Products, concentrates on utilization of the products of primary energy conversion. Specific examples include biosynthesis of potential fuels or chemicals, biodegradation of lignocellulose into potentially useful compounds, plant/microbe symbiosis, microbial methanogenesis and fermentation. The third main component of the EB program involves providing the basic research infrastructure to support future discoveries. The emphasis here is on investigation of basic genetic mechanisms, both in novel systems and extensively studied systems such as maize; development of critical databases, techniques, and instrumentation; and support of training in areas that are important but underpopulated. Brief descriptions of currently supported research projects are provided. 186 refs., 1 tab (MHB)

  8. Division of Energy Biosciences annual report and summaries of FY 1991 activities

    International Nuclear Information System (INIS)

    As a component of the Department of Energy, the Energy Biosciences (EB) program of the Office of Basic Energy Sciences supports long-term research aimed at addressing energy-related problems utilizing biological systems. There are three main components of the EB program. The first, Primary Biological Energy Conversion, concentrates on research on plant and microbial photosynthesis, but also deals with plant growth control, stress reactions, and interaction with pathogens. The second, Bioconversion of Products, concentrates on utilization of the products of primary energy conversion. Specific examples include biosynthesis of potential fuels or chemicals, biodegradation of lignocellulose into potentially useful compounds, plant/microbe symbiosis, microbial methanogenesis and fermentation. The third main component of the EB program involves providing the basic research infrastructure to support future discoveries. The emphasis here is on investigation of basic genetic mechanisms, both in novel systems and extensively studied systems such as maize; development of critical databases, techniques, and instrumentation; and support of training in areas that are important but underpopulated. Brief descriptions of currently supported research projects are provided. 186 refs., 1 tab

  9. Developing and evaluating effective bioscience learning activities for nursing students.

    Science.gov (United States)

    Salvage-Jones, Judith; Hamill, Jessie; Todorovic, Michael; Barton, Matthew J; Johnston, Amy N B

    2016-07-01

    Effective engagement of nursing students in the study of biosciences remains a challenge for many tertiary institutes. In this study we attempted to implement and then evaluate a simple hands-on intervention, consisting of a series of hands-on games and puzzles, to increase nursing student engagement with core concepts and anatomical learning involved in clinical anatomy and physiology. The study used a quazi-experimental longitudinal before and after design, to explore the effect of a learning intervention on student performance. Set across three different campuses of the same University, it included 1320 first year undergraduate nursing students from 2013 to 2014 who were studying Anatomy and Physiology. Students were exposed to the interventions or not, and concomitant academic performance, weekly quiz scores, performance in fortnightly worksheets and, across the semester, exam performance were compared. The results show that while the intervention appeared to increase academic performance in students on one campus (2013) compared to the other two, this difference was not sustained into 2014 when a bigger cohort was examined. Despite significant subjective student satisfaction and enthusiasm about these learning and teaching interventions, the data does not support the capacity of these activities to enhance student academic performance. Tertiary entrance scores, being a non-native English speakers and socio-economic status all had a bigger impact on student performance than engagement with fun anatomy and physiology activities. PMID:27428695

  10. Foods: Where Innovation, Agriculture, Molecular Biosciences and Human Nutrition Meet

    Directory of Open Access Journals (Sweden)

    Charles Brennan

    2012-11-01

    Full Text Available There is one commodity the world over that unites mankind—food. In 2011 the United Nations claimed that the world’s population had reached the seven billion mark, a number which is set to increase dramatically in the decades to come. Food security, supply and sustainability are of paramount concern to the future economic and social progress of humanity. It is the responsibility of the food industry, together with food scientists and technologists, to shoulder the burden of ensuring an adequate supply of nutritious, safe and sensorially acceptable foods for a range of demanding consumers. In responding to this challenge, we need to understand the link between agriculture, engineering, food processing, molecular biosciences, human nutrition, commercialisation and innovation. Access to information concerning the composition and quality of foods has never been so easy for consumers and technologists alike. A plethora of research publications are made available each month to scientists and associated interested parties. The outcomes of these research manuscripts are often distilled and disseminated into messages available to everyone through bulletin boards, forums and the popular press. Newspapers and new agencies constantly report on the latest pharma-medical finding, or news regarding food safety and security concerns. We live in an age where information is so readily available to everyone that the task of finding credible and reputable data can be difficult at times. Providing sound evidenced based research is where a peer-reviewed journal can provide clarity. [...

  11. Impact of a pilot pharmacy health-care professional out-of-school time physical activity and nutrition education program with exercise on fourth and fifth graders in a rural Texas community

    OpenAIRE

    Robles, Janie; Gutierrez, Ashley; Seifert, Charles F.

    2014-01-01

    Objectives: Childhood obesity continues to be a problem. Children in rural populations are more likely to be overweight or obese and a lack of resources in those areas may contribute to this problem. We aimed to assess the impact of a pilot pharmacy health-care professional out-of-school time vigorous physical activity and nutrition education program on fourth and fifth graders in a rural Texas community. Methods: We conducted a prospective 12-week cohort study from August to November 2012. T...

  12. Fourth-Generation Computer Languages: An Overview.

    Science.gov (United States)

    Ricks, John

    1988-01-01

    Points out that mainframe computer users today can make their requirements known to the computer in simple English. Provides a listing of fourth generation computer language advantages over third generation languages. Summarizes a program to streamline faculty records on a mainframe computer. (MVL)

  13. Fourth-rank cosmology

    International Nuclear Information System (INIS)

    Some cosmological implications of the recently proposed fourth-rank theory of gravitation are studied. The model exhibits the possibility of being free from the horizon and flatness problems at the price of introducing a negative pressure. The field equations we obtain are compatible with kobs=0 and Ωobstclas approx. 1020tPlanck approx. 10-23s. When interpreted at the light of General Relativity the treatment is shown to be almost equivalent to that of the standard model of cosmology combined with the inflationary scenario. Hence, an interpretation of the negative pressure hypothesis is provided. (author). 8 refs

  14. Reflective Writing as a Tool for Assessing Teamwork in Bioscience: Insights into Student Performance and Understanding of Teamwork

    Science.gov (United States)

    Mayne, Lynne

    2012-01-01

    To ensure a modern bioscience curriculum that responds to the current needs of stakeholders, there is a need to embed a range of generic capabilities that enables graduates to succeed in and contribute to a rapidly changing world, as well as building strong bioscience skills and knowledge. The curriculum must also prepare students for a rapidly…

  15. Design of an Integrated Team Project as Bachelor Thesis in Bioscience Engineering

    Science.gov (United States)

    Peeters, Marie-Christine; Londers, Elsje; Van der Hoeven, Wouter

    2014-01-01

    Following the decision at the KU Leuven to implement the educational concept of guided independent learning and to encourage students to participate in scientific research, the Faculty of Bioscience Engineering decided to introduce a bachelor thesis. Competencies, such as communication, scientific research and teamwork, need to be present in the…

  16. Reflective Practice: A Place in Enhancing Learning in the Undergraduate Bioscience Teaching Laboratory?

    Science.gov (United States)

    Parry, Damian; Walsh, Cathy; Larsen, Carl; Hogan, Joanne

    2012-01-01

    Bioscience employers demand graduates with better practical competence. It is our supposition that, although undesirable, student learning is assessment driven and this is leading students to simply go through the motions in the practical setting (whether field work or laboratory based). In this intervention a Critical Incident Report was…

  17. Call for Papers--Bioscience Methods (ISSN 1925-1920)

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Bioscience Methods (BM) (ISSN 1925-1920) is a new launched, open access and peer-revi- ewed journal that dedicates to publish the original research papers involving in innovative technologies and novel experimental arts within the fields ofbiosciences.

  18. Call for papers—Bioscience Methods(ISSN 1925-1920)

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Bioscience Methods(BM)(ISSN 1925-1920) is a new launched,open access and peer-reviewed journal that dedicates to publish the original research papers involving in innovative technologies and novel experimental arts within the fields ofbiosciences.

  19. Call for papers--Bioscience Methods (ISSN 1925-1920)

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Bioscience Methods (BM) (ISSN 1925-1920) is a new launched, open access and peer-reviewed journal that dedicates to publish the original research papers involving in innovative technologies and novel experimental arts within the fields ofbiosciences.

  20. Effectiveness of "Fun"tastic Nutrition ProgramSM on Nutrition knowledge and Dietary Behavior of Fourth- and Fifth-Grade Students

    OpenAIRE

    Tabitha Farr

    2015-01-01

    There is a lack of evidence for the effectiveness of school programs that develop healthy habits, this is critical given the rising concerns related to childhood obesity. The aim of this study was to assess the effectiveness of a comprehensive nutrition education program in improving nutrition knowledge and behaviors among elementary aged students involving four elementary schools in greater St. Louis metropolitan area, inclusive of East St. Louis, Illinois. Educational lessons providing a co...

  1. Fourth report on the Oak Ridge National Laboratory Biological Monitoring and Abatement Program for White Oak Creek Watershed and the Clinch River

    Energy Technology Data Exchange (ETDEWEB)

    Loar, J.M. [ed.

    1994-04-01

    In response to a condition of the National Pollutant Discharge Elimination System (NPDES) permit issued to Oak Ridge National Laboratory (ORNL) on April 1, 1986, a Biological Monitoring and Abatement Program (BMAP) was developed for White Oak Creek (WOC) and selected tributaries. BMAP currently consists of six major tasks that address both radiological and nonradiological contaminants in the aquatic and terrestrial environs on-site and the aquatic environs off-site. These tasks are (1) toxicity monitoring, (2) bioaccumulation monitoring of nonradiological contaminants in aquatic biota, (3) biological indicator studies, (4) instream ecological monitoring, (5) assessment of contaminants in the terrestrial environment, and (6) radioecology of WOC and White Oak Lake. The ecological characterization of the WOC watershed will provide baseline data that can be used to document the ecological effects of the water pollution control program and the remedial action program. The long-term nature of BMAP ensures that the effectiveness of remedial measures will be properly evaluated.

  2. Fast breeder reactor program. Hearings before the Joint Economic Committee, Congress of the United States, Ninety-Fourth Congress, First Session

    International Nuclear Information System (INIS)

    The economics of the liquid metal fast breeder reactor (LMFBR) was the subject of hearings of the Joint Economic Committee, chaired by Sen. Hubert Humphrey. FY '76 funding for the breeder program is $450 million, the largest single item of the Federal energy program. Elmer B. Staats, U.S. Comptroller General, testified on the rising costs of demonstration facilities and pointed out that Federal agencies are required to make all estimates of costs and benefits in constant dollars rather than projecting for inflation. Staats recommended a joint ERDA-Congressional study of the possible use of foreign breeder technology. Sheldon Meyers of the Environmental Protection Agency, while not opposing the breeder program, recommended a delay to resolve three problem areas: (1) base energy demand projections; (2) timing of the commercial introduction of the LMFBR; and (3) uncertainties over possible benefits from the LMFBR program. Theodore B. Taylor, International Research and Technology Corp., discussed the costs and security safeguards of the LMFBR, which produces more spent fuel than the light water reactor. Other witnesses included Robert Seamans and officials from ERDA, Ralph Nader, and speakers from private study groups

  3. Highlights of the 3rd International Conference on High Pressure Bioscience and Biotechnology

    Directory of Open Access Journals (Sweden)

    J.A. Mignaco

    2005-08-01

    Full Text Available The 3rd International Conference on High Pressure Bioscience and Biotechnology was held in the city of Rio de Janeiro from September 27 to September 30, 2004. The meeting, promoted by the International Association of High Pressure Bioscience and Biotechnology (IAHPBB, congregated top scientists and researchers from all over the world. In common, they shared the use of hydrostatic pressure for research, technical development, or industrial applications. The meeting consisted of invited lectures, contributed papers and a well-attended poster session. Very exciting discussions were held inside and outside the sessions, and the goals of discussing state-of-the-art data and establishing working collaborations and co-operations were fully attained.

  4. Fourth Generation Reactor Concepts

    International Nuclear Information System (INIS)

    Concerns over energy resources availability, climate changes and energy supply security suggest an important role for nuclear energy in future energy supplies. So far nuclear energy evolved through three generations and is still evolving into new generation that is now being extensively studied. Nuclear Power Plants are producing 16% of the world's electricity. Today the world is moving towards hydrogen economy. Nuclear technologies can provide energy to dissociate water into oxygen and hydrogen and to production of synthetic fuel from coal gasification. The introduction of breeder reactors would turn nuclear energy from depletable energy supply into an unlimited supply. From the early beginnings of nuclear energy in the 1940s to the present, three generations of nuclear power reactors have been developed: First generation reactors: introduced during the period 1950-1970. Second generation: includes commercial power reactors built during 1970-1990 (PWR, BWR, Candu, Russian RBMK and VVER). Third generation: started being deployed in the 1990s and is composed of Advanced LWR (ALWR), Advanced BWR (ABWR) and Passive AP600 to be deployed in 2010-2030. Future advances of the nuclear technology designs can broaden opportunities for use of nuclear energy. The fourth generation reactors are expected to be deployed by 2030 in time to replace ageing reactors built in the 1970s and 1980s. The new reactors are to be designed with a view of the following objectives: economic competitiveness, enhanced safety, minimal radioactive waste production, proliferation resistance. The Generation IV International Forum (GIF) was established in January 2000 to investigate innovative nuclear energy system concepts. GIF members include Argentina, Brazil, Canada, Euratom, France Japan, South Africa, South Korea, Switzerland, United Kingdom and United States with the IAEA and OECD's NEA as permanent observers. China and Russia are expected to join the GIF initiative. The following six systems

  5. The molecular biology revolution and the rise of bioscience megacentres in North America and Europe

    OpenAIRE

    Philip Cooke

    2004-01-01

    This paper focuses on 'triple helix' effects in biosciences. Scientific change can have profound socioeconomic effects. The molecular biology revolution tilted pharmaceuticals production away from its fine chemistry path dependence into microbiology and biotechnology. The key to any triple helix effects has thus shifted to universities and spinouts buttressed with burgeoning public funding, leaving 'big pharma' increasingly playing the role of licenser and marketer of bought-in therapeutic tr...

  6. Assessment of Collaboration and Interoperability in an Information Management System to Support Bioscience Research

    OpenAIRE

    Myneni, Sahiti; Patel, Vimla L.

    2009-01-01

    Biomedical researchers often have to work on massive, detailed, and heterogeneous datasets that raise new challenges of information management. This study reports an investigation into the nature of the problems faced by the researchers in two bioscience test laboratories when dealing with their data management applications. Data were collected using ethnographic observations, questionnaires, and semi-structured interviews. The major problems identified in working with these systems were rela...

  7. Improving Bioscience Research Reporting: The ARRIVE Guidelines for Reporting Animal Research †

    OpenAIRE

    Carol Kilkenny; Browne, William J.; Cuthill, Innes C; Michael Emerson; Altman, Douglas G.

    2014-01-01

    In the last decade the number of bioscience journals has increased enormously, with many filling specialised niches reflecting new disciplines and technologies. The emergence of open-access journals has revolutionised the publication process, maximising the availability of research data. Nevertheless, a wealth of evidence shows that across many areas, the reporting of biomedical research is often inadequate, leading to the view that even if the science is sound, in many cases the publications...

  8. The scientific assessment of combined effects of risk factors: different approaches in experimental biosciences and epidemiology

    OpenAIRE

    Boedeker, Wolfgang; Backhaus, Thomas

    2010-01-01

    Abstract The analysis of combined effects of substances or risk factors has been a subject to science for more than a century. With different goals, combined effect analysis was addressed in almost all experimental biosciences. The major theoretical foundation can be traced back to two distinct origins. First, to the work by the pharmacologist Loewe on the concept of concentration additivity and second to the biometrician Bliss and the concept of independent action. In the search f...

  9. Fourth Light at Paranal!

    Science.gov (United States)

    2000-09-01

    VLT YEPUN Joins ANTU, KUEYEN and MELIPAL It was a historical moment last night (September 3 - 4, 2000) in the VLT Control Room at the Paranal Observatory , after nearly 15 years of hard work. Finally, four teams of astronomers and engineers were sitting at the terminals - and each team with access to an 8.2-m telescope! From now on, the powerful "Paranal Quartet" will be observing night after night, with a combined mirror surface of more than 210 m 2. And beginning next year, some of them will be linked to form part of the unique VLT Interferometer with unparalleled sensitivity and image sharpness. YEPUN "First Light" Early in the evening, the fourth 8.2-m Unit Telescope, YEPUN , was pointed to the sky for the first time and successfully achieved "First Light". Following a few technical exposures, a series of "first light" photos was made of several astronomical objects with the VLT Test Camera. This instrument was also used for the three previous "First Light" events for ANTU ( May 1998 ), KUEYEN ( March 1999 ) and MELIPAL ( January 2000 ). These images served to evaluate provisionally the performance of the new telescope, mainly in terms of mechanical and optical quality. The ESO staff were very pleased with the results and pronounced YEPUN fit for the subsequent commissioning phase. When the name YEPUN was first given to the fourth VLT Unit Telescope, it was supposed to mean "Sirius" in the Mapuche language. However, doubts have since arisen about this translation and a detailed investigation now indicates that the correct meaning is "Venus" (as the Evening Star). For a detailed explanation, please consult the essay On the Meaning of "YEPUN" , now available at the ESO website. The first images At 21:39 hrs local time (01:39 UT), YEPUN was turned to point in the direction of a dense Milky Way field, near the border between the constellations Sagitta (The Arrow) and Aquila (The Eagle). A guide star was acquired and the active optics system quickly optimized the

  10. An Introduction to Programming for Bioscientists: A Python-Based Primer.

    OpenAIRE

    Berk Ekmekci; McAnany, Charles E.; Cameron Mura

    2016-01-01

    Computing has revolutionized the biological sciences over the past several decades, such that virtually all contemporary research in molecular biology, biochemistry, and other biosciences utilizes computer programs. The computational advances have come on many fronts, spurred by fundamental developments in hardware, software, and algorithms. These advances have influenced, and even engendered, a phenomenal array of bioscience fields, including molecular evolution and bioinformatics; genome-, ...

  11. An Introduction to Programming for Bioscientists: A Python-based Primer

    OpenAIRE

    Ekmekci, Berk; McAnany, Charles E.; Mura, Cameron

    2016-01-01

    Computing has revolutionized the biological sciences over the past several decades, such that virtually all contemporary research in the biosciences utilizes computer programs. The computational advances have come on many fronts, spurred by fundamental developments in hardware, software, and algorithms. These advances have influenced, and even engendered, a phenomenal array of bioscience fields, including molecular evolution and bioinformatics; genome-, proteome-, transcriptome- and metabolom...

  12. An Introduction to Programming for Bioscientists: A Python-Based Primer

    OpenAIRE

    Ekmekci, Berk; McAnany, Charles E.; Mura, Cameron

    2016-01-01

    Computing has revolutionized the biological sciences over the past several decades, such that virtually all contemporary research in molecular biology, biochemistry, and other biosciences utilizes computer programs. The computational advances have come on many fronts, spurred by fundamental developments in hardware, software, and algorithms. These advances have influenced, and even engendered, a phenomenal array of bioscience fields, including molecular evolution and bioinformatics; genome-, ...

  13. Challenges and opportunities for early-career Teaching-Focussed academics in the biosciences.

    Science.gov (United States)

    Hubbard, Katharine; Gretton, Sarah; Jones, Katherine; Tallents, Lucy

    2015-01-01

    Twenty-seven percent of academics in UK Higher Education (HE) are in Teaching-Focussed positions, making major contributions to undergraduate programmes in an era of high student expectations when it comes to teaching quality. However, institutional support for Teaching-Focussed academics is often limited, both in terms of peer networking and opportunities for career development. As four early-career stage Teaching-Focussed academics working in a variety of institutions, we explore what motivated our choices to make teaching our primary academic activity, and the challenges that we have faced in doing so. In addition to highlighting the need for universities to fully recognise the achievements of teaching staff, we discuss the role that the various biosciences learned societies have in supporting Teaching-Focussed academics. We identify that there is a need for the learned societies to come together and pool their expertise in this area. The fragmented nature of the Teaching-Focussed academic community means that clear sources of national support are needed in order to best enable the next generation of bioscience educators to reach their full potential. PMID:25977754

  14. Ontologies and standards in bioscience research: for machine or for human

    Directory of Open Access Journals (Sweden)

    HuaiyuMi

    2011-02-01

    Full Text Available Ontologies and standards are very important parts of today’s bioscience research. With the rapid increase of biological knowledge, they provide mechanisms to better store and represent data in a controlled and structured way, so that scientists can share the data, and utilize a wide variety of software and tools to manage and analyze the data. Most of these standards are initially designed for computers to access large amounts of data that are difficult for human biologists to handle, and it is important to keep in mind that ultimately biologists are going to produce and interpret the data. While ontologies and standards must follow strict semantic rules that may not be familiar to biologists, effort must be spent to lower the learning barrier by involving biologists in the process of development, and by providing software and tool support. A standard will not succeed without support from the wider bioscience research community. Thus, it is crucial that these standards be designed not only for machines to read, but also to be scientifically accurate and intuitive to human biologists.

  15. Implementation of ML Using Naïve Bayes Algorithm for Identifying Disease-Treatment Relation in Bio-Science Text

    Directory of Open Access Journals (Sweden)

    T.F. Michael Raj

    2013-01-01

    Full Text Available In recent years many successful machine learning applications have been developed, ranging from datamining programs to information-filtering systems that learn users' reading preferences. At the same time, there have been important advances in the theory and algorithms that can be used identify the diseases and treatment relations in a Bio-Science text. Imagine a computer learns from medical records which treatments are most effective for new diseases. Having the machine learning concept behind we have proposed a Machine Learning (ML approach based on Naïve Bayes (NB algorithm to improve the automatic disease identification in the medical field. And also we have improved text classification by using an integrated model.

  16. 8. International congress of the SBBN. Radiation in biosciences: research development and innovation. Program and abstracts

    International Nuclear Information System (INIS)

    The congress presents: pre-congress courses as Application of Cytometry of Flux in Radiobiology and Radiation Protection in Medical and Industrial Activities; thematic modules with plenary lectures and round tables such as Radioecology and Environmental Management, Advances in Image Diagnosis, Medical Physics and Quality Assurance in Diagnosis and Therapy, Advances in Radiobiology; poster sessions on Special Topics and Radiopharmacy and oral presentation of selected works on Radiotherapy, Radiation Protection and Radiopharmacy and exhibition of products and services

  17. THE FOURTH STATE OF WATER

    Directory of Open Access Journals (Sweden)

    E.V. Savich

    2013-04-01

    Full Text Available The fourth state of water is aqueous vapor which, under power action of magnetic-field strength at Curie point at the moment of magnetic phase transition, acquires properties of ferroelectric plasma. The latter is the basis of origination of such natural phenomena as a thunderstorm cloud and a ball lightning capable of releasing, under certain conditions, lightning strokes and, during explosion, plenty of thermal energy, which is typical of a low-temperature reactor.

  18. The Fourth Microlensing Planet Revisited

    CERN Document Server

    Yock, Philip

    2015-01-01

    The fourth microlensing planet, otherwise known as OGLE-2005-BLG-169Lb, was discovered by a collaboration of US, NZ, Polish and UK astronomers in 2005-2006. Recently the results were confirmed by the Hubble Space Telescope and by the Keck Observatory. OGLE-2005-BLG-169Lb is the first microlensing planet to receive such confirmation. Its discovery and confirmation are described here in an historical context.

  19. Search for the fourth standard model family

    International Nuclear Information System (INIS)

    Existence of the fourth family follows from the basics of the standard model (SM) and the actual mass spectrum of the third family fermions. We discuss possible manifestations of the fourth SM family at existing and future colliders. The LHC and Tevatron potentials to discover the fourth SM family have been compared. The scenario with dominance of the anomalous decay modes of the fourth-family quarks has been considered in detail.

  20. Engineering alumni present fourth $10,000 prize

    OpenAIRE

    Nystrom, Lynn A.

    2005-01-01

    A group of seven Virginia Tech alumni, in conjunction with the university's College of Engineering, has awarded its fourth $10,000 prize to university's Department of Computer Science in recognition of improvements to the department's Ph.D. program during the past year.

  1. On the outside looking in: redefining the role of analytical chemistry in the biosciences.

    Science.gov (United States)

    Hare, Dominic J; New, Elizabeth J

    2016-07-12

    Biomedical research has moved on from the study of the structure of organs, cells and organelles. Today, the key questions that must be addressed to understand the body in health and disease are related to fundamental biochemistry: the distribution and speciation of chemicals, the regulation of chemical reactions, and the control of chemical environments. To see advances in this field, it is essential for analytical chemists to actively engage in this process, from beginning to end. In this Feature Article, we review the progress that has been made towards gaining an understanding of the chemistry of the body, while commenting on the intrinsic disconnect between new innovations in the field of analytical chemistry and practical application within the biosciences. We identify the challenges that prevent chemists from making a greater impact in this field, and highlight key steps for moving forward. PMID:26898242

  2. Assessment of Collaboration and Interoperability in an Information Management System to Support Bioscience Research

    Science.gov (United States)

    Myneni, Sahiti; Patel, Vimla L.

    2009-01-01

    Biomedical researchers often have to work on massive, detailed, and heterogeneous datasets that raise new challenges of information management. This study reports an investigation into the nature of the problems faced by the researchers in two bioscience test laboratories when dealing with their data management applications. Data were collected using ethnographic observations, questionnaires, and semi-structured interviews. The major problems identified in working with these systems were related to data organization, publications, and collaboration. The interoperability standards were analyzed using a C4I framework at the level of connection, communication, consolidation, and collaboration. Such an analysis was found to be useful in judging the capabilities of data management systems at different levels of technological competency. While collaboration and system interoperability are the “must have” attributes of these biomedical scientific laboratory information management applications, usability and human interoperability are the other design concerns that must also be addressed for easy use and implementation. PMID:20351900

  3. Scientific Reports of Plasma Medicine and its Mechanism for Therapy in Plasma Bioscience Research Center

    Science.gov (United States)

    Choi, Eun Ha

    2015-09-01

    Scientific reports of plasma medicine and its basic mechanism for therapy will be introduced, especially, performed in Plasma Bioscience Research Center, Korea. We have investigated enhanced anticancer effect of monocytes and macrophages activated by nonthermal plasma which act as immune-modulator on these immune cells. Further, we investigated the action of the nanosecond pulsed plasma activated media (NPPAM) on the lung cancer cells and its DNA oxidation pathway. We observed OD induced apoptosis on melanocytes G361 cancer cells through DNA damage signaling cascade. We also studied DNA oxidation by extracting DNA from treated cancer cell and analyzed the effects of OD/OH/D2O2/H2O2 on protein modification and oxidation. Additionally, we attempted molecular docking approaches to check the action of D2O2 on the apoptosis related genes.

  4. Googling your genes: personal genomics and the discourse of citizen bioscience in the network age

    Directory of Open Access Journals (Sweden)

    Marina Levina

    2010-03-01

    Full Text Available In this essay, I argue that the rise of personal genomics is technologically, economically, and most importantly, discursively tied to the rise of network subjectivity, an imperative of which is an understanding of self as always already a subject in the network. I illustrate how personal genomics takes full advantage of social media technology and network subjectivity to advertise a new way of doing research that emphasizes collaboration between researchers and its members. Sharing one’s genetic information is considered to be an act of citizenship, precisely because it is good for the network. Here members are encouraged to think of themselves as dividuals, or nodes, in the network and their actions acquire value based on that imperative. Therefore, citizen bioscience is intricately tied, both in discourse and practices, to the growth of the network in the age of new media.

  5. A preliminary exploration of the advanced molecular bio-sciences research center

    International Nuclear Information System (INIS)

    Low dose and low dose rate radiation effects on lifespan, pathological changes, hemopoiesis and cytokine production in mice have been investigated in our laboratory. In the intermediate period of the investigation, an expert committee on radiation biology was organized. The purposes of the committee were to assess previous studies and advise on a future research plan for the Advanced Molecular Bio-Sciences Research Center (AMBIC). The committee emphasized the necessity of molecular research in radiation biology, and proposed the following five subjects: 1) molecular carcinogenesis by low dose radiation; 2) radiation effects on the immune and hemopoietic systems; 3) molecular mechanisms of hereditary effect; 4) noncancer diseases of low dose radiation, and 5) cellular mechanisms by low dose radiation. (author)

  6. Effect of A-Level Subject Choice and Entry Tariff on Final Degree and Level 1 Performance in Biosciences

    Science.gov (United States)

    King, Nicola C.; Aves, Stephen J.

    2012-01-01

    Following the publication of the higher education white paper increasing entry tariff and widening participation have become even more important issues for universities. This report examines the relationship between entry tariff and undergraduate achievement in Biosciences at the University of Exeter. We show that, whilst there is a significant…

  7. Production of Doctorates in the Biosciences, 1975-1980: An Experimental Forecast. Higher Education Panel Reports, No. 34.

    Science.gov (United States)

    Atelsek, Frank J.; Gomberg, Irene L.

    A survey was undertaken in 1976 to obtain short-term estimates of doctorate production directly from the heads of the science departments involved. These biosciences departments were surveyed in the 235 member institutions of the Higher Education Panel that grant doctorates: anatomy, biochemistry, biology, biometry/biostatistics/biomathematics,…

  8. Francis Crick, cross-worlds influencer: A narrative model to historicize big bioscience

    Science.gov (United States)

    Aicardi, Christine

    2016-01-01

    The essay is an empirical case study of famed British scientist Francis Crick. Viewing him as a ‘cross-worlds influencer’ who was moreover dedicated to a cause, I have tried to understand how these two characteristics influenced the trajectory of his long career and how they shaped his contributions to the diverse research fields in which he was active, and concluded that these characteristics reconfigure Crick's career into a coherent whole. First, I identify a major thread running through Crick's career: helping organise ‘un-disciplined’ new research fields, and show that his successive choices were not serendipitous but motivated by what he construed as a crusade against ‘vitalism’: anti-vitalism was a defining driver of his career. I then examine how Crick put his skills as a crossworlds influencer to the service of his cause, by helping organise his chosen fields of intervention. I argue that his activities as a cross-worlds influencer were an integral part of his way of ‘doing science’ and that his contributions to science, neuroscience in particular, should be re-evaluated in this light. This leads me to advance a possible strategy for historians to investigate big bioscience fields. Following Abir-Am, I propose to trace their genealogies back to the fluctuating semi-institutional gatherings and the institutional structures that sustained them. My research on Crick supports the view that such studies can bring insights into the question of why the contours of contemporary big bioscience endeavours have come to be shaped the way they are. Further, the essay provides a heuristic device for approaching these enquiries: ‘follow the cross-worlds influencers’ who worked to build and organise these semi-institutional gatherings and institutional structures. PMID:26383132

  9. The fourth Board of Governors

    International Nuclear Information System (INIS)

    The General Conference of the International Atomic Energy Agency at its fourth regular session, which was held in Vienna from 20 September to 1 October 1960, elected five Member States to serve a two-year term on the Agency's Board of Governors. The five were Argentina, El Salvador, the Federal Republic of Germany, Iraq and Thailand. The new members succeed Indonesia, the Netherlands, Peru, the United Arab Republic and Venezuela, which were elected for a two-year term by the second session of the General Conference in 1958

  10. Fourth order deformed general relativity

    Science.gov (United States)

    Cuttell, Peter D.; Sakellariadou, Mairi

    2014-11-01

    Whenever the condition of anomaly freedom is imposed within the framework of effective approaches to loop quantum cosmology, one seems to conclude that a deformation of general covariance is required. Here, starting from a general deformation we regain an effective gravitational Lagrangian including terms up to fourth order in extrinsic curvature. We subsequently constrain the form of the corrections for the homogeneous case, and then investigate the conditions for the occurrence of a big bounce and the realization of an inflationary era, in the presence of a perfect fluid or scalar field.

  11. The fourth dimension simply explained

    CERN Document Server

    Manning, Henry P

    2005-01-01

    To remove the contents of an egg without puncturing its shell or to drink the liquor in a bottle without removing the cork is clearly unthinkable - or is it? Understanding the world of Einstein and curved space requires a logical conception of the fourth dimension.This readable, informative volume provides an excellent introduction to that world, with 22 essays that employ a minimum of mathematics. Originally written for a contest sponsored by Scientific American, these essays are so well reasoned and lucidly written that they were judged to merit publication in book form. Their easily unders

  12. Fourth Lepton Family is Natural in Technicolor

    DEFF Research Database (Denmark)

    T. Frandsen, Mads; Masina, Isabella; Sannino, Francesco

    2010-01-01

    Imagine to discover a new fourth family of leptons at the Large Hadron Collider (LHC) but no signs of an associated fourth family of quarks. What would that imply? An intriguing possibility is that the new fermions needed to compensate for the new leptons gauge anomalies simultaneously address the...... structure with and without mixing with the Standard Model families. We also analyze the LHC potential to observe the fourth lepton family in tandem with the new composite Higgs dynamics. We finally introduce a model uniting the fourth lepton family and the technifermion sector at higher energies....

  13. Improving Bioscience Research Reporting: The ARRIVE Guidelines for Reporting Animal Research

    Directory of Open Access Journals (Sweden)

    Carol Kilkenny

    2014-02-01

    Full Text Available In the last decade the number of bioscience journals has increased enormously, with many filling specialised niches reflecting new disciplines and technologies. The emergence of open-access journals has revolutionised the publication process, maximising the availability of research data. Nevertheless, a wealth of evidence shows that across many areas, the reporting of biomedical research is often inadequate, leading to the view that even if the science is sound, in many cases the publications themselves are not “fit for purpose”, meaning that incomplete reporting of relevant information effectively renders many publications of limited value as instruments to inform policy or clinical and scientific practice [1–21]. A recent review of clinical research showed that there is considerable cumulative waste of financial resources at all stages of the research process, including as a result of publications that are unusable due to poor reporting [22]. It is unlikely that this issue is confined to clinical research [2–14,16–20].

  14. Fourth order spatial derivative gravity

    Science.gov (United States)

    Bemfica, F. S.; Gomes, M.

    2011-10-01

    In this work, we study a modified theory of gravity that contains up to fourth order spatial derivatives as a model for the Hořava-Lifshitz gravity. The propagator is evaluated and, as a result, one extra pole is obtained, corresponding to a spin-2 nonrelativistic massless particle, an extra term which jeopardizes renormalizability, besides the unexpected general relativity unmodified propagator. Then unitarity is proved at the tree level, where the general relativity pole has been shown to have no dynamics, remaining only the 2 degrees of freedom of the new pole. Next, the nonrelativistic effective potential is determined from a scattering process of two identical massive gravitationally interacting bosons. In this limit, Newton’s potential is obtained, together with a Darwin-like term that comes from the extra nonpole term in the propagator. Regarding renormalizability, this extra term may be harmful by power counting, but it can be eliminated by adjusting the free parameters of the model. This adjustment is in accord with the detailed balance condition suggested in the literature and shows that the way in which extra spatial derivative terms are added is of fundamental importance.

  15. Fourth international radiopharmaceutical dosimetry symposium

    International Nuclear Information System (INIS)

    The focus of the Fourth International Radiopharmaceutical Dosimetry Symposium was to explore the impact of current developments in nuclear medicine on absorbed dose calculations. This book contains the proceedings of the meeting including the edited discussion that followed the presentations. Topics that were addressed included the dosimetry associated with radiolabeled monoclonal antibodies and blood elements, ultrashort-lived radionuclides, and positron emitters. Some specific areas of discussion were variations in absorbed dose as a result of alterations in the kinetics, the influence of radioactive contaminants on dose, dose in children and in the fetus, available instrumentation and techniques for collecting the kinetic data needed for dose calculation, dosimetry requirements for the review and approval of new radiopharmaceuticals, and a comparison of the effect on the thyroid of internal versus external irradiation. New models for the urinary blader, skeleton including the active marrow, and the blood were presented. Several papers dealt with the validity of traditional ''average-organ'' dose estimates to express the dose from particulate radiation that has a short range in tissue. These problems are particularly important in the use of monoclonal antibodies and agents used to measure intracellular functions. These proceedings have been published to provide a resource volume for anyone interested in the calculation of absorbed radiation dose

  16. Investigation of the Department of Education's College Construction Loan Programs. Sixty-Fourth Report by the Committee on Government Operations Together with Additional Views. 98th Congress, 2d Session.

    Science.gov (United States)

    Congress of the U. S., Washington, DC. House Committee on Government Operations.

    An overview investigation of two U.S. Department of Education college construction loan programs was conducted by a House of Representatives' subcommittee. Both programs, the College Housing Loan Program (CHLP) and the Academic Facilities Loan Program (AFLP), were created by Congress in response to upsurges in college enrollments. CHLP provides…

  17. Fuels and cycles for the fourth generation systems

    International Nuclear Information System (INIS)

    This paper presented during the Cea Seminar on the nuclear systems of the future deals with the fuels and cycles of the fourth generation systems. Four goal areas have been defined for these systems: sustainable for the environment, economical for the investment, safety and reliability, a better protection against the proliferation. The different fuels and cycles of the research programs are detailed. (A.L.B.)

  18. A business case for on-site generation: The BD biosciences pharmingen project

    Energy Technology Data Exchange (ETDEWEB)

    Firestone, Ryan; Creighton, Charles; Bailey, Owen; Marnay, Chris; Stadler, Michael

    2003-09-01

    Deregulation is haltingly changing the United States electricity markets. The resulting uncertainty and/or rising energy costs can be hedged by generating electricity on-site and other benefits, such as use of otherwise wasted heat, can be captured. The Public Utility Regulatory Policy Act (PURPA) of 1978 first invited relatively small-scale generators ({ge} 1 MW) into the electricity market. The advent of efficient and reliable small scale and renewable equipment has spurred an industry that has, in recent years, made even smaller (business scale) electricity generation an economically viable option for some consumers. On-site energy capture and/or conversion, known as distributed energy resources (DER), offers consumers many benefits, such as economic savings and price predictability, improved reliability, control over power quality, and emissions reductions. Despite these benefits, DER adoption can be a daunting move to a customer accustomed to simply paying a monthly utility bill. San Diego is in many ways an attractive location for DER development: It has high electricity prices typical of California and a moderate climate i.e. energy loads are consistent throughout the year. Additionally, the price shock to San Diego Gas and Electric (SDG&E) customers during the summer of 2000 has interested many in alternatives to electricity price vulnerability. This report examines the business case for DER at the San Diego biotechnology supply company, BD Biosciences Pharmingen, which considered DER for a building with 200-300 kW base-load, much of which accommodates the refrigerators required to maintain chemicals. Because of the Mediterranean climate of the San Diego area and the high rate of air changes required due to on-site use of chemicals, modest space heating is required throughout the year. Employees work in the building during normal weekday business hours, and daily peak loads are typically about 500 kW.

  19. Rulison Site groundwater monitoring report. Fourth quarter, 1997

    International Nuclear Information System (INIS)

    This report summarizes the results of the fourth quarter 1997 groundwater sampling event for the Rulison Site, which is located approximately 65 kilometers (km) (40 miles [mi]) northeast of Grand Junction, Colorado. This is the eighth and final sampling event of a quarterly groundwater monitoring program implemented by the U.S. Department of Energy (DOE). This program monitored the effectiveness of remediation of a drilling effluent pond that had been used to store drilling mud during drilling of the emplacement hole for a 1969 gas stimulation test conducted by the U.S. Atomic Energy Commission (AEC) (the predecessor agency to the DOE) and Austral Oil Company (Austral)

  20. SBBN 2010: 7. Congress of the Brazilian Society of Nuclear Biosciences. Radiations in biosciences: advances and trends; SBBN 2010: 7. Congresso da Sociedade Brasileira de Biociencias Nucleares. Radiacoes em biociencias: avancos e perspectivas

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2010-07-01

    Advance and new perspectives related to the use of ionizing and no ionizing radiations in nuclear biosciences are presented. Multidisciplinary approach, including radiopharmacy, radioprotection and dosimetry, cytogenetic, biosafety, radioecology, environmental toxicology are studied. Topics of Nuclear medicine, radiotherapy and image diagnosis, such as computerized tomography, PET scan, phantoms, biomedical radiography, are reported. Use of radioisotopes, evaluation of radiation dose rates, radiation dose distribution, radiation monitoring is considered. Environmental impact of radiation are also in human beings, animals and for several purposes are analyzed. (MAC)

  1. The fourth state of water

    OpenAIRE

    E.V. Savich

    2013-01-01

    Четвертое состояние воды – это водяной пар под энергетическим воздействием напряженности магнитного поля в точке Кюри, в момент магнитного фазового перехода обретает свойство сегнетоэлектрической плазмы, которая есть основа образований таких природных явлений, как грозовое облако и шаровая молния, способных при определенных условиях выделять молнийные разряды и при взрыве большое количество тепловой энергии, что характерно для низкотемпературного реактора. The fourth state of water is aque...

  2. Handle Fireworks with Care on The Fourth

    Science.gov (United States)

    ... Fourth Take steps to avoid injury while celebrating independence To use the sharing features on this page, ... a university news release. And Dr. Jay McCollum, director of emergency services at the university's Eye Hospital, ...

  3. A tale of three next generation sequencing platforms: comparison of Ion Torrent, Pacific Biosciences and Illumina MiSeq sequencers

    Directory of Open Access Journals (Sweden)

    Quail Michael A

    2012-07-01

    Full Text Available Abstract Background Next generation sequencing (NGS technology has revolutionized genomic and genetic research. The pace of change in this area is rapid with three major new sequencing platforms having been released in 2011: Ion Torrent’s PGM, Pacific Biosciences’ RS and the Illumina MiSeq. Here we compare the results obtained with those platforms to the performance of the Illumina HiSeq, the current market leader. In order to compare these platforms, and get sufficient coverage depth to allow meaningful analysis, we have sequenced a set of 4 microbial genomes with mean GC content ranging from 19.3 to 67.7%. Together, these represent a comprehensive range of genome content. Here we report our analysis of that sequence data in terms of coverage distribution, bias, GC distribution, variant detection and accuracy. Results Sequence generated by Ion Torrent, MiSeq and Pacific Biosciences technologies displays near perfect coverage behaviour on GC-rich, neutral and moderately AT-rich genomes, but a profound bias was observed upon sequencing the extremely AT-rich genome of Plasmodium falciparum on the PGM, resulting in no coverage for approximately 30% of the genome. We analysed the ability to call variants from each platform and found that we could call slightly more variants from Ion Torrent data compared to MiSeq data, but at the expense of a higher false positive rate. Variant calling from Pacific Biosciences data was possible but higher coverage depth was required. Context specific errors were observed in both PGM and MiSeq data, but not in that from the Pacific Biosciences platform. Conclusions All three fast turnaround sequencers evaluated here were able to generate usable sequence. However there are key differences between the quality of that data and the applications it will support.

  4. Fourth Moments and Independent Component Analysis

    OpenAIRE

    Miettinen, Jari; Taskinen, Sara; Nordhausen, Klaus; Oja, Hannu

    2014-01-01

    In independent component analysis it is assumed that the components of the observed random vector are linear combinations of latent independent random variables, and the aim is then to find an estimate for a transformation matrix back to these independent components. In the engineering literature, there are several traditional estimation procedures based on the use of fourth moments, such as FOBI (fourth order blind identification), JADE (joint approximate diagonalization of eigenmatrices), a...

  5. Fourth Australian conference on nuclear techniques of analysis: AINSE, Lucas Heights, N.S.W. Proceedings

    International Nuclear Information System (INIS)

    Conference sessions covered the areas of materials science, semiconductors, ceramics and metals, archaeometry, industrial applications, environmental applications, bioscience, instrumentation, surfaces and geoscience

  6. Safety Evaluation for Fourth Core Loading of ETRR-2

    International Nuclear Information System (INIS)

    This paper presents the safety evaluation for the fourth for loading of the ETRR-2 and verification of the core neutronic design criteria for fourth core load. the aims of this work are to assure that the core load satisfies all neutronic safety criteria and to evaluate all core neutronic parameters. the calculation line is a combination of cell calculation transport cod WIMSD-4 and core calculation diffusion code (CITVAP). Two set of macroscopic cross section libraries were generated (hot with xenon and cold without xenon) using the cell calculation code WIMSD4 and POS-WIMS program to be used in global reactor calculation . the core calculations are performed using CITVAP code, starting from first core load up to the end of fourth core. these calculations include burn up calculations and verification of the core neutronic safety criteria . the different cores calculations considered the actual load pattern as well as the detailed operation history. comparisons with experimental measurements of actual critical configurations were performed during the different reload history and the results are very closed by that for utility and all neutronic safety criteria are fulfilled , moreover the accuracy of the burnup calculation is very good. the different critical core configurations were correctly predicted with error less than 200 pcm

  7. The Naturalness of the Fourth SM Family

    CERN Document Server

    Sultansoy, S

    2009-01-01

    The necessity of the fourth family follows from the SM basics. According to flavor democracy the Dirac masses of the fourth SM family fermions are almost equal with preferable value 450 GeV, which corresponds to common (for all fundamental fermions) Yukawa coupling equal to SU(2) gauge coupling gW. In principle, one expect u4 a little bit lighter than d4, while nu4 could be essentially lighter than l4 due to Majorana mass terms for right-handed components of neutrinos. Obviously, the fourth family quarks will be copiously produced at the LHC. However, the first indication of the fourth SM family may be provided by early Higgs boson observation due to almost an order enhancement of the gluon fusion to Higgs cross-section. For the same reason the Tevatron still has a chance to observe the Higgs boson before the LHC. Concerning the fourth family leptons, in general, best place will be NLC/CLIC. However, for some mass regions and MNS matrix elements double discovery of both the nu4 and H could be possible at the ...

  8. Bioculture System: Expanding ISS Space Bioscience Capabilities for Fundamental Stem Cell Research and Commercial Applications

    Science.gov (United States)

    Blaber, Elizabeth; Dvorochkin, Natalya; Almeida, Eduardo; Fitzpatrick, Garret; Ellingson, Lance; Mitchell, Sarah; Yang, Anthony; Kosnik, Cristine; Rayl, Nicole; Cannon, Tom; Austin, Edward; Sato, Kevin

    With the recent call by the 2011 Decadal Report and the 2010 Space Biosciences Roadmap for the International Space Station (ISS) to be used as a National Laboratory for scientific research, there is now a need for new laboratory instruments on ISS to enable such research to occur. The Bioculture System supports the extended culturing of multiple cell types and microbiological specimens. It consists of a docking station that carries ten independent incubation units or ‘Cassettes’. Each Cassette contains a cooling chamber (5(°) C) for temperature sensitive solutions and samples, or long duration fluids and sample storage, as well as an incubation chamber (ambient up to 42(°) C). Each Cassette houses an independent fluidics system comprised of a biochamber, medical-grade fluid tubing, medium warming module, oxygenation module, fluid pump, and sixteen solenoid valves for automated biochamber injections of sampling. The Bioculture System provides the user with the ability to select the incubation temperature, fluid flow rate and automated biochamber sampling or injection events for each separate Cassette. Furthermore, the ISS crew can access the biochamber, media bag, and accessory bags on-orbit using the Microgravity Science Glovebox. The Bioculture System also permits initiation of cultures, subculturing, injection of compounds, and removal of samples for on-orbit processing using ISS facilities. The Bioculture System therefore provides a unique opportunity for the study of stem cells and other cell types in space. The first validation flight of the Bioculture System will be conducted on SpaceX5, consisting of 8 Cassettes and lasting for 30-37 days. During this flight we plan to culture two different mammalian cell types in bioreactors: a mouse osteocytic-like cell line, and human induced pluripotent stem cell (iPS)-derived cardiomyocytes. Specifically, the osteocytic line will enable the study of a type of cell that has been flown on the Bioculture System

  9. Fourth International Seminar and Fourth National Workshop 'Use and development of Health Related Industrial Isotope Products'

    International Nuclear Information System (INIS)

    The analysis of the main subjects was tackled during the Fourth International Seminar and Fourth National Workshop 'Use and development of Health Related Industrial Isotope Products' which took place on December 7th, 8th and 9th 2010, devoted to the XV Anniversary of the Isotope Centre is showed in the paper.(author)

  10. Medical Evaluation of the Special Supplemental Food Program for Women, Infants and Children. Select Committee on Nutrition and Human Needs, United States Senate, Ninety-Fourth Congress, 2d Session. Committee Print.

    Science.gov (United States)

    Congress of the U.S., Washington, DC. Senate Select Committee on Nutrition and Human Needs.

    This paper reports a medical evaluation of a federal program providing funds for special nutritious food supplements to low income pregnant and lactating women, infants, and children up to four years of age who are nutritional risks. Growth, dietary intake, and biochemical measures were obtained for study infants at the time of enrollment in the…

  11. A Fourth Chiral Generation And Susy Breaking

    CERN Document Server

    Wingerter, Akin

    2011-01-01

    We revisit four generations within the context of supersymmetry. We compute the perturbativity limits for the fourth generation Yukawa couplings and show that if the masses of the fourth generation lie within reasonable limits of their present experimental lower bounds, it is possible to have perturbativity only up to scales around 1000 TeV, i.e. the current experimental bounds and perturbative unification are mutually exclusive. Such low scales are ideally suited to incorporate gauge mediated supersymmetry breaking, where the mediation scale can be as low as 10-20 TeV. The minimal messenger model, however, is highly constrained. Lack of electroweak symmetry breaking rules out a large part of the parameter space, and in the remaining part, the fourth generation stau is tachyonic.

  12. Fourth joint meeting of the American Urological Association and the Japanese Urological Association Specialty Society program at the 104th annual meeting of the American Urological Association at Chicago 2009.

    Science.gov (United States)

    Cooperberg, Matthew R; Hinotsu, Shiro; Chancellor, Michael B; Homma, Yukio; Nelson, Peter S; Matsuyama, Hideyasu; Menon, Mani; Kucuk, Omer; Hara, Isao; Egawa, Shin; Uzzo, Robert G; Kanayama, Hiro-Omi; Okuyama, Akihiko; Akaza, Hideyuki

    2009-08-01

    We are heartily grateful for the warm support of all of the people concerned, including the moderators and panelists of both societies for giving us the opportunity to hold the 4th American Urological Association/Japanese Urological Association (AUA/JUA) Joint Meeting, held once again at the 104th Annual Meeting of the American Urological Association (25-30 April 2009, Chicago, Illinois, USA). 2009 is a memorable year, being the start of new collaborations between AUA and JUA. The JUA in collaboration with AUA is promoting an academic exchange program whereby outstanding and promising Japanese and American junior faculty members will be given the opportunity to work in the USA and Japan for one month. The program not only allows the sharing of knowledge and experience, but is designed to foster a closer alliance between the AUA and JUA, and assists in identifying future leaders within both organizations. The JUA will have an exhibit booth at the AUA annual meeting, promoting our new joint activities. The Journal of Urology and International Journal of Urology will share reviewers. The JUA will participate in developing AUA guidelines. With all of these activities, the JUA hopes it will provide greater opportunities to young Japanese urologists to participate in educational projects in the US. We would like to thank Professor Robert C. Flanigan, the Secretary General of AUA, Professor Glenn M. Preminger, the Chairman of the AUA Office of Education and the staff of AUA and JUA for supporting our program. We hope to keep holding the joint meeting and have plenty of ideas on themes and forums. We believe that this international program helps to establish a closer relationship between JUA and AUA in the scientific field. PMID:19682110

  13. Sex Differences in Cognitive Abilities. Fourth Edition

    Science.gov (United States)

    Halpern, Diane F.

    2011-01-01

    The fourth edition of "Sex Differences in Cognitive Abilities" critically examines the breadth of research on this complex and controversial topic, with the principal aim of helping the reader to understand where sex differences are found--and where they are not. Since the publication of the third edition, there have been many exciting and…

  14. Fourth Dutch Process Security Control Event

    NARCIS (Netherlands)

    Luiijf, H.A.M.; Zielstra, A.

    2010-01-01

    On December 1st, 2009, the fourth Dutch Process Control Security Event took place in Baarn, The Netherlands. The security event with the title ‘Manage IT!’ was organised by the Dutch National Infrastructure against Cybercrime (NICC). Mid of November, a group of over thirty people participated in the

  15. Proceedings of the fourth annual conference on fossil energy materials

    Energy Technology Data Exchange (ETDEWEB)

    Judkins, R.R.; Braski, D.N. (comps.)

    1990-08-01

    The Fourth Annual Conference on Fossil Energy Materials was held in Oak Ridge, Tennessee, on may 15--17, 1990. The meeting was sponsored by the US Department of Energy's Office of Fossil Energy through the Advanced Research and Technology Development (AR TD) Materials Program, and ASM International. The objective of the AR TD Materials Program is to conduct research and development on materials for longer-term fossil energy applications as well as for generic needs of various fossil fuel technologies. The work is divided into the following categories: (1) Ceramics, (2) New Alloys, (3) Corrosion and Erosion, and (4) Technology Assessment and Technology Transfer. Individual projects are processed separately for the data bases.

  16. Gravitational waves in fourth order gravity

    Science.gov (United States)

    Capozziello, S.; Stabile, A.

    2015-08-01

    In the post-Minkowskian limit approximation, we study gravitational wave solutions for general fourth-order theories of gravity. Specifically, we consider a Lagrangian with a generic function of curvature invariants . It is well known that when dealing with General Relativity such an approach provides massless spin-two waves as propagating degree of freedom of the gravitational field while this theory implies other additional propagating modes in the gravity spectra. We show that, in general, fourth order gravity, besides the standard massless graviton is characterized by two further massive modes with a finite-distance interaction. We find out the most general gravitational wave solutions in terms of Green functions in vacuum and in presence of matter sources. If an electromagnetic source is chosen, only the modes induced by are present, otherwise, for any gravity model, we have the complete analogy with tensor modes of General Relativity. Polarizations and helicity states are classified in the hypothesis of plane wave.

  17. Fourth World Theory: The Evolution of . . .

    OpenAIRE

    Olon F. Dotson

    2014-01-01

    Fourth World theory is a methodology for examining and developing greater understanding of the extent of the distress and abandonment commonly found in the cores of American cities resulting from de-industrialization, historic segregation and discrimination patterns, suburban sprawl, erosion of a viable tax base, racism, inability to embrace the concept of desegregation and civil rights legislation, fear, despair, crumbling infrastructure systems, disinvestment in urban school systems, and en...

  18. Fourth NASA Langley Formal Methods Workshop

    Science.gov (United States)

    Holloway, C. Michael (Compiler); Hayhurst, Kelly J. (Compiler)

    1997-01-01

    This publication consists of papers presented at NASA Langley Research Center's fourth workshop on the application of formal methods to the design and verification of life-critical systems. Topic considered include: Proving properties of accident; modeling and validating SAFER in VDM-SL; requirement analysis of real-time control systems using PVS; a tabular language for system design; automated deductive verification of parallel systems. Also included is a fundamental hardware design in PVS.

  19. Fourth international conference on Networks & Communications

    CERN Document Server

    Meghanathan, Natarajan; Nagamalai, Dhinaharan; Computer Networks & Communications (NetCom)

    2013-01-01

    Computer Networks & Communications (NetCom) is the proceedings from the Fourth International Conference on Networks & Communications. This book covers theory, methodology and applications of computer networks, network protocols and wireless networks, data communication technologies, and network security. The proceedings will feature peer-reviewed papers that illustrate research results, projects, surveys and industrial experiences that describe significant advances in the diverse areas of computer networks & communications.

  20. Flavour democracy calls for the fourth generation

    International Nuclear Information System (INIS)

    It is argued with the help of an illustrative mode, that the inter species hierarchy among the fermion masses and the quark mixing angles can be accommodated naturally in the standard model with (approximate) flavour democracy provided there are four families of sequential quark-leptons with all members of the fourth family having roughly equal masses. The special problem of light neutrino masses (if any) and possible solutions are also discussed. (author). 15 refs

  1. Flavour democracy calls for the fourth generation

    International Nuclear Information System (INIS)

    It is argued with the help of an illustrative model, that the inter species hierarchy among the fermion masses and the quark mixing angles can be accommodated naturally in the standard model with (approximate) flavor democracy provided there are three exactly massless neutrinos and four families of sequential quark-leptons with all members of the fourth family having roughly equal masses. The special problem of light neutrino masses (if any) and possible solutions are also discussed. (author). 22 refs

  2. Flavour Democracy Calls for the Fourth Generation

    CERN Document Server

    Datta, A

    1993-01-01

    It is argued with the help of an illustrative model, that the inter--species hierarchy among the fermion masses and the quark mixing angles can be accommodated naturally in the standard model with (approximate) flavor democracy provided there are four families of sequential quark--leptons with all members of the fourth family having roughly equal masses. The special problem of light neutrino masses (if any) and possible solutions are also discussed.

  3. Art meets mathematics in the fourth dimension

    CERN Document Server

    Lipscomb, Stephen Leon

    2014-01-01

    To see objects that live in the fourth dimension we humans would need to add a fourth dimension to our three-dimensional vision. An example of such an object that lives in the fourth dimension is a hyper-sphere or “3-sphere”. The quest to imagine the elusive 3-sphere has deep historical roots: medieval poet Dante Alighieri, in his circa 1300 AD Divine Comedy, used a 3-sphere to convey his allegorical vision of the Christian afterlife. In 1917, Albert Einstein visualized the universe, at each instant in time, as a 3-sphere. He described his representation as “…the place where the reader’s imagination boggles. Nobody can imagine this thing.” Over time, however, our understanding of the concept of dimension evolved. By 2003, a researcher had successfully rendered into human vision the structure of a 4-web (think of an every increasingly-dense spider’s web). In this text Stephen Lipscomb takes his innovative dimension theory research a step further, using the 4-web to reveal a new partial image of a...

  4. Fourth-rank gravity and cosmology

    International Nuclear Information System (INIS)

    We consider the consequences of describing the metric properties of space-time through a quartic line element. The associated ''metric'' is a fourth-rank tensor Gμυλπ. In order to recover a Riemannian behaviour of the geometry it is necessary to have Gμυλπ = g (μυgλπ). We construct a theory for the gravitational field based on the fourth-rank metric Gμυλπ. In the absence of matter the fourth-rank metric becomes separable and the theory coincides with General Relativity. In the presence of matter we can maintain Riemmanianicity, but now gravitation couples, as compared to General Relativity, in a different way to matter. We develop a simple cosmological model based on a FRW metric with matter described by a perfect fluid. For the present time the field equations are compatible with kOBS = O and ΩOBS tCLAS approx. 1020t PLANCK approx. 10-23s. Our final and most important result is the fact that the entropy is an increasing function of time. When interpreted at the light of General Relativity the treatment is shown to be almost equivalent to that of the standard model of cosmology combined with the inflationary scenario. (author). 16 refs, 1 fig

  5. Telling time in the Fourth Gospel

    Directory of Open Access Journals (Sweden)

    Jerome H. Neyrey

    2008-01-01

    Full Text Available When we begin the task of telling time in the Fourth Gospel, we bring something not found in any previous study, namely, a model of time articulated by cross- ultural anthropologists (Bordieu, in Pitt-Rivers 1963:55-72, Ayoade, in Wright 1984:71-89. As much as we admire Davies’ study, she has no notes to her chapter on time nor any citations in her bibliography to indicate that she has any conversation partners, much less cultural experts, a deficit to be filled in this study. Learning to tell time entails three theoretical considerations: a definition of time, key classifications of it, and special attention to what the ancients meant by past, present and future. With these lenses we are prepared to do as thorough a study as we can on telling time in the Fourth Gospel. As we consider each classification, we will suggest a brief meaning of it from the experts on time, then present a body of Greco-Roman materials illustrative of the classification, and finally use it to gather and interpret data in John. Proving the native existence of these classifications for telling time in antiquity is essential for readers to have a background against which to compare their usage with that of the Fourth Gospel.

  6. Quarterly environmental radiological survey summary. Fourth quarter, 1995 100, 200, 300, and 600 Areas

    International Nuclear Information System (INIS)

    This report provides a summary of the radiological surveys performed in support of the operational environmental monitoring program at the Hanford Site. The Fourth Quarter 1995 survey results and the status of actions required from current and past reports are described

  7. Report on IIiX’12: the Fourth Information Interaction in Context Symposium

    NARCIS (Netherlands)

    Fuhr, N.; Kamps, J.; Kraaij, W.; Verberne, S.

    2013-01-01

    This paper reports on the fourth Information Interaction in Context (IIiX) Symposium held in Nijmegen, the Netherlands in August 2012. It featured a lively program with 3 keynotes, 25 long papers with oral presentation, 20 short papers with poster presentation, a doctoral consortium, a workshop on h

  8. Geometry, relativity and the fourth dimension

    CERN Document Server

    Rucker, Rudolf

    1977-01-01

    This is a highly readable, popular exposition of the fourth dimension and the structure of the universe. A remarkable pictorial discussion of the curved space-time we call home, it achieves even greater impact through the use of 141 excellent illustrations. This is the first sustained visual account of many important topics in relativity theory that up till now have only been treated separately.Finding a perfect analogy in the situation of the geometrical characters in Flatland, Professor Rucker continues the adventures of the two-dimensional world visited by a three-dimensional being to expl

  9. Analiticity in fourth order wave equations

    International Nuclear Information System (INIS)

    Through a familiar example (δ-function potential in one dimension) the analytic properties of Jost functions associated with fourth order equations are presented. It is shown how to construct the Jost functions and the two discontinuities matrices associated to the line of singularities. The latter divide the complex k-plane in eight regions of analiticity. One of these matrices is related to the asymptotic behaviour of scattering state. The other is not. Both being necessary to solve the inverse problem. Besides the usual poles related to bound states there are also other poles associated with total reflexion. (Author)

  10. The fourth pattern of attachment: Disorganized / disoriented

    Directory of Open Access Journals (Sweden)

    Zlatka Cugmas

    2003-09-01

    Full Text Available On the basis of the study of recent scientific literature about the development of attachment behavior, the author answers the following questions about: the behavior children categorized as Disorganized/disorientated or Controlling in the procedure of the Strange situation; the life circumstances, in which these children live; the reasons for lack of balanced strategies of attachment and characteristics of their general manner of adaptation. The author finds the characteristics of the mothers' (insensitivity to be significantly influential for the emergence of the fourth pattern of attachment. These children are heterogeneous regarding adaptation in general. Professional help preceding negative consequences for their socioemotional development is neccesary.

  11. Fourth international seminar on horizontal steam generators

    Energy Technology Data Exchange (ETDEWEB)

    Tuomisto, H. [ed.] [IVO Group, Vantaa (Finland); Purhonen, H. [ed.] [VTT, Espoo (Finland); Kouhia, V. [ed.] [Lappeenranta Univ. of Technology (Finland)

    1997-12-31

    The general objective of the International Seminars of Horizontal Steam Generator Modelling has been the improvement in understanding of realistic thermal hydraulic behaviour of the generators when performing safety analyses for VVER reactors. The main topics presented in the fourth seminar were: thermal hydraulic experiments and analyses, primary collector integrity, feedwater distributor replacement, management of primary-to-secondary leakage accidents and new developments in the VVER safety technology. The number of participants, representing designers and manufacturers of the horizontal steam generators, plant operators, engineering companies, research organizations, universities and regulatory authorities, was 70 from 10 countries.

  12. The Fourth VLBA Calibrator Survey - VCS4

    OpenAIRE

    Petrov, L.; Kovalev, Y. Y.; Fomalont, E.; Gordon, D

    2005-01-01

    This paper presents the fourth extension to the Very Long Baseline Array (VLBA) Calibrator Survey, containing 258 new sources not previously observed with very long baseline interferometry (VLBI). This survey, based on three 24 hour VLBA observing sessions, fills remaining areas on the sky above declination -40 degrees where the calibrator density is less than one source within a 4 degree radius disk at any given direction. The share of these area was reduced from 4.6% to 1.9%. Source positio...

  13. Fourth international seminar on horizontal steam generators

    International Nuclear Information System (INIS)

    The general objective of the International Seminars of Horizontal Steam Generator Modelling has been the improvement in understanding of realistic thermal hydraulic behaviour of the generators when performing safety analyses for VVER reactors. The main topics presented in the fourth seminar were: thermal hydraulic experiments and analyses, primary collector integrity, feedwater distributor replacement, management of primary-to-secondary leakage accidents and new developments in the VVER safety technology. The number of participants, representing designers and manufacturers of the horizontal steam generators, plant operators, engineering companies, research organizations, universities and regulatory authorities, was 70 from 10 countries

  14. Fourth annual Walker Branch Watershed research symposium: Program and abstracts

    International Nuclear Information System (INIS)

    The methods and concepts of watershed research, originally applied in an experimental or monitoring mode to relatively small catchments, are increasingly being used at larger scales and for specific applied problems. Research at Oak Ridge National Laboratory, the Tennessee Valley Authority, the US Forest Service, and other agencies and institutions participating in this symposium reflects research over a broad range of spatial scales that is being integrated through large-scale experiments along with computer modeling and graphical interfaces. These research projects address the basic atmospheric, geophysical, biogeochemical, and biological processes that regulate the responses of forested ecosystems to natural environmental variation and anthropogenic stresses. This symposium highlights the use of large-scale ecosystem experiments to address environmental issues of global concern. These experiments provide the only effective way to test models of ecosystem response that are based on the current state of knowledge of hydrology, biogeochemistry, plant physiology, and other ecosystem processes. Major environmental problems that are being addressed include acidic deposition and nitrogen loading (Bear Brook Watershed, Maine; and the Girdsjoen Covered Catchment, Sweden); climate warming (Soil Warming Experiment, Maine); and altered rainfall amounts (Savannah River Loblolly Pine Soil Water Manipulation and the Walker Branch Watershed Throughfall Displacement Experiment)

  15. An Action Research Study Using the Music Model of Academic Motivation to Increase Reading Motivation in a Fourth-Grade Classroom

    Science.gov (United States)

    Williams, Angela W.

    2013-01-01

    This study involved examination of the processes employed in tailoring fourth-grade reading instruction to increase levels of student motivation. A participatory action research approach was utilized to design and conduct reading instruction that fourth-grade students perceived to be motivating. The reading instructional program was designed using…

  16. Fourth harmonic generation of DKDP crystal

    International Nuclear Information System (INIS)

    Deuterated dihydrogen phosphate (DKDP) crystals of different deuterium contents were cut for type-Ⅰ non-critical phase-matching with the direction at 90° to the crystal z axis and at 45° to the crystal x axis, and then measured in the fourth harmonic generation experiments with fundamental wavelengths of 1 064 nm and 1 053 nm. respectively. The optimum deuterium content of DKDP crystal was confirmed by measuring the relation between deuterium content and phase-matching angle, The results indicate that DKDP crystal can not achieve non-critical phase matching by adjusting its deuterium content at room temperature with the fundamental wavelength of 1 064 nm. However, at the fundamental wavelength of 1053 nm. the optimum deuterium content of DKDP crystal is 85%, to achieve non-critical phase matching at room temperature. (authors)

  17. Gravitational lensing in fourth order gravity

    CERN Document Server

    Capozziello, S; Troisi, A

    2006-01-01

    Gravitational lensing is investigated in the weak field limit of fourth order gravity in which the Lagrangian of the gravitational field is modified by replacing the Ricci scalar curvature R with an analytical expression $f(R)$. Considering the case of a pointlike lens, we study the behaviour of the deflection angle in the case of power law Lagrangians, i.e. with f(R) = f_0 R^n. In order to investigate possible detectable signatures, the position of the Einstein ring and the solutions of the lens equation are evaluated considering the change with respect to the standard case. Effects on the amplification of the images and the Paczynski curve in microlensing experiments are also estimated.

  18. Fourth-rank gravity. A progress report

    International Nuclear Information System (INIS)

    We consider the consequences of describing the metric properties of space-time through a quartic line element. The associated ''metric'' is a fourth-rank tensor. After developing some fundamentals for such geometry, we construct a field theory for the gravitational field. This theory coincides with General Relativity in the vacuum case. Departures from General Relativity are obtained only in the presence of matter. We develop a simple cosmological model which is not in contradiction with the observed value Ω approx. 0.2-0.3 for the energy density parameter. A further application concerns conformal field theory. We are able to prove that a conformal field theory possesses an infinite-dimensional symmetry group only if the dimension of space-time is equal to the rank of the metric. In this case we are able to construct an integrable conformal field theory in four dimensions. The model is renormalisable by power counting. (author). 9 refs

  19. Fourth Thematic CERN School of Computing

    CERN Multimedia

    Alberto Pace, CSC Director

    2016-01-01

    The Fourth Thematic School of Computing (tCSC2016) takes place this year in Split, Croatia, from 22 to 28 May 2016.   The theme is "Efficient and Parallel Processing of Scientific Data", looking at: The challenge of scientific data processing: commonalities, analogies and the main differences between different sciences. Size of scientific software projects. Parallelism and asynchronism: computation and I/O. The School is open to postgraduate students and research workers with a few years' experience in elementary particle physics, computing, engineering or related fields.  All applicants are welcome, including former and future participants in the main CSC summer school. Registration will close on 15 February and participation is limited to 24 students. To register, please go here. About: The Thematic Schools are part of the annual series of CERN Schools of Computing, to promote advanced learning and knowledge exchange on the subject of scientific compu...

  20. The Fourth VLBA Calibrator Survey - VCS4

    CERN Document Server

    Petrov, L A; Fomalont, E B; Gordon, D

    2006-01-01

    This paper presents the fourth extension to the Very Long Baseline Array (VLBA) Calibrator Survey, containing 262 new sources not previously observed with very long baseline interferometry (VLBI). This survey, based on three 24 hour VLBA observing sessions, fills remaining areas on the sky above declination -40 degrees where the calibrator density is less than one source within a 4 degree radius disk at any given direction. The share of these area was reduced from 4.6% to 1.9%. Source positions were derived from astrometric analysis of group delays determined at 2.3 and 8.6 GHz frequency bands using the Calc/Solve software package. The VCS4 catalogue of source positions, plots of correlated flux density versus projected baseline length, contour plots and fits files of naturally weighted CLEAN images, as well as calibrated visibility function files are available on the Web at http://gemini.gsfc.nasa.gov/vcs4 .

  1. Fourth International Conference on Complex Systems

    CERN Document Server

    Minai, Ali A; Unifying Themes in Complex Systems IV

    2008-01-01

    In June of 2002, over 500 professors, students and researchers met in Boston, Massachusetts for the Fourth International Conference on Complex Systems. The attendees represented a remarkably diverse collection of fields: biology, ecology, physics, engineering, computer science, economics, psychology and sociology, The goal of the conference was to encourage cross-fertilization between the many disciplines represented and to deepen understanding of the properties common to all complex systems. This volume contains 43 papers selected from the more than 200 presented at the conference. Topics include: cellular automata, neurology, evolution, computer science, network dynamics, and urban planning. About NECSI: For over 10 years, The New England Complex Systems Institute (NECSI) has been instrumental in the development of complex systems science and its applications. NECSI conducts research, education, knowledge dissemination, and community development around the world for the promotion of the study of complex sys...

  2. Fourth World Theory: The Evolution of . . .

    Directory of Open Access Journals (Sweden)

    Olon F. Dotson

    2014-05-01

    Full Text Available Fourth World theory is a methodology for examining and developing greater understanding of the extent of the distress and abandonment commonly found in the cores of American cities resulting from de-industrialization, historic segregation and discrimination patterns, suburban sprawl, erosion of a viable tax base, racism, inability to embrace the concept of desegregation and civil rights legislation, fear, despair, crumbling infrastructure systems, disinvestment in urban school systems, and environmental justice issues. This article uses the analytical lens of Fourth World theory to examine how such structural and cultural forces contributed to the severely distressed conditions now found in the city of Gary, Indiana. Tracking its one-hundred-year history, from its founding as an industrial town through its post-industrial decline occurring during the city’s first African-American mayor’s five terms in office, the methodology clearly demonstrates how the social construction of race has systematically undermined every aspect of Gary’s overall quality of life. To illustrate that this city is not an anomaly but rather reflects a typical pattern of disparity and uneven development arising from racist practices, Gary is compared to other cities of similar size and also to the much larger Detroit. The article triangulates academic literature, news media archives, and an oral history provided by the mayor to show how Gary evolved from being a model industrial city to a cauldron of racial disparity. The paper concludes by arguing that continued absence of reflection on the nation’s historical racialization of place threatens not just impoverished communities of color, but also the sustainability of the entire nation.

  3. Programmable bio-nano-chip system: a flexible point-of-care platform for bioscience and clinical measurements.

    Science.gov (United States)

    McRae, Michael P; Simmons, Glennon W; Wong, Jorge; Shadfan, Basil; Gopalkrishnan, Sanjiv; Christodoulides, Nicolaos; McDevitt, John T

    2015-10-21

    The development of integrated instrumentation for universal bioassay systems serves as a key goal for the lab-on-a-chip community. The programmable bio-nano-chip (p-BNC) system is a versatile multiplexed and multiclass chemical- and bio-sensing system for bioscience and clinical measurements. The system is comprised of two main components, a disposable cartridge and a portable analyzer. The customizable single-use plastic cartridges, which now can be manufactured in high volumes using injection molding, are designed for analytical performance, ease of use, reproducibility, and low cost. These labcard devices implement high surface area nano-structured biomarker capture elements that enable high performance signaling and are index-matched to real-world biological specimens. This detection modality, along with the convenience of on-chip fluid storage in blisters and self-contained waste, represents a standard process to digitize biological signatures at the point-of-care. A companion portable analyzer prototype has been developed to integrate fluid motivation, optical detection, and automated data analysis, and it serves as the human interface for complete assay automation. In this report, we provide a systems-level perspective of the p-BNC universal biosensing platform with an emphasis on flow control, device integration, and automation. To demonstrate the flexibility of the p-BNC, we distinguish diseased and non-case patients across three significant disease applications: prostate cancer, ovarian cancer, and acute myocardial infarction. Progress towards developing a rapid 7 minute myoglobin assay is presented using the fully automated p-BNC system. PMID:26308851

  4. Searching for the fourth family quarks through anomalous decays

    International Nuclear Information System (INIS)

    The flavor democracy hypothesis predicts the existence of the fourth standard model family. Because of the high masses of the fourth family quarks, their anomalous decays could be dominant if certain criteria are met. This will drastically change the search strategy at hadron colliders. We show that the fourth standard model family down quarks with masses up to 400-450 GeV can be observed (or excluded) via anomalous decays by Tevatron.

  5. Fourth generation electron cyclotron resonance ion sources.

    Science.gov (United States)

    Lyneis, Claude M; Leitner, D; Todd, D S; Sabbi, G; Prestemon, S; Caspi, S; Ferracin, P

    2008-02-01

    The concepts and technical challenges related to developing a fourth generation electron cyclotron resonance (ECR) ion source with a rf frequency greater than 40 GHz and magnetic confinement fields greater than twice B(ECR) will be explored in this article. Based on the semiempirical frequency scaling of ECR plasma density with the square of operating frequency, there should be significant gains in performance over current third generation ECR ion sources, which operate at rf frequencies between 20 and 30 GHz. While the third generation ECR ion sources use NbTi superconducting solenoid and sextupole coils, the new sources will need to use different superconducting materials, such as Nb(3)Sn, to reach the required magnetic confinement, which scales linearly with rf frequency. Additional technical challenges include increased bremsstrahlung production, which may increase faster than the plasma density, bremsstrahlung heating of the cold mass, and the availability of high power continuous wave microwave sources at these frequencies. With each generation of ECR ion sources, there are new challenges to be mastered, but the potential for higher performance and reduced cost of the associated accelerator continues to make this a promising avenue for development. PMID:18315111

  6. Examination of nuclear systems of fourth generation

    International Nuclear Information System (INIS)

    This report proposes a detailed discussion of the six nuclear systems selected by the Generation IV International Forum with the objective of coordinating research and development activities which should result in the deployment of nuclear systems (reactors and associated fuel cycle installations) of fourth generation by the second half of the 21. century. These systems are: sodium cooled fast reactors (SFR), very high temperature reactors (VHTR), gas cooled fast reactors (GFR), lead cooled fast reactors (LFR) or lead bismuth eutectic reactors (LBE), molten salt reactors (MSR), and supercritical water reactors (SCWR). Fast systems are interesting as they favour the transmutation of fertile materials into fissile materials. History and perspectives of development, main characteristics, management of safety functions, risk analysis, impact on the environment, radiation protection and decommissioning, concept maturity and R and D needs are discussed for each of these systems. A comparison is reported in terms of main characteristics of reactors, of neutron characteristics and reactivity control, of sensitivity to cooling losses, of confinement function, of exploitation safety, of in-service inspection, of behaviour in case of severe accident, of toxicity of chemical substances, of sensitivity to aggressions (seism), of concept maturity and technological difficulties. The report also proposes a review of the various fuels which can be used in these different systems and which have been considered as eligible by the International Forum: oxides, carbides, nitrides, metals, waste processing. The last part addresses the transmutation of long life radioactive elements: physics, context, assessment of scenarios soundness, influence of transmutation on installations and transports

  7. Fourth generation type reactors - Synthesis note

    International Nuclear Information System (INIS)

    Six types of reactors have been studied: High or very high temperature helium cooled type reactors, fast neutrons sodium cooled type reactors, fast neutrons gas cooled type reactors, fast neutrons lead or lead-bismuth cooled type reactors, supercritical water type reactors, molten salt type reactors. For the high or very high temperature type reactors the questions of safety and radiation protection have been tackled through the fuel, the neutronics, the materials, the passive systems, safety and reliability of associated industrial processes, risks in relation with graphite, fire and explosion risks linked to hydrogen production; about the fast neutron sodium cooled type reactors the principal questions of safety are tackled through the specific risks linked to the metallic fuel, the neutronic effects in case of loss of coolant said sodium 'vacuum effect', risk of core meltdown, risks linked to sodium, passive systems, ability of structures inspection; concerning the fast neutron gas cooled type reactors, the questions of safety and radiation protection are the aspects linked to the reactor and the aspects linked to the fuel fabrication, this last question has been tackled for each reactor type. A part has been devoted to the production and the management of waste in the case of deployment of a fourth generation reactors park. (N.C.)

  8. Heading for the fourth nuclear age

    International Nuclear Information System (INIS)

    The author examines the evolution of the global nuclear order since the advent of nuclear weapons in 1945 to present by breaking down the sixty-plus years of nuclear history into three analytically distinct 'ages', each lasting roughly twenty years. By doing so, the author traces back the roots of the current nuclear predicament to some early seeds of trouble which have gradually grown more profound. He attributes much of the unraveling of the nuclear order to: - Certain inherent weaknesses in the original NPT formula; - Changes in the global distribution of power since the codification of the nuclear order in the 1960's; - The dissemination of nuclear weapon technology; and - Complacency and subsequent disillusionment with the nuclear order since the early 1990's. The paper further analyzes what could precipitate a new nuclear age around 2010. The author argues that such a 'fourth nuclear age' would likely be characterized by either a nuclear anarchy, which he believes has become the default option, or a more benign nuclear order manifested by lower numbers of weapons and stringent controls and restrictions on remaining nuclear arsenals and activities. He concludes by considering the more pressing requirements for regaining nuclear stability

  9. IAEA research contracts. Fourth annual report

    International Nuclear Information System (INIS)

    This volume represents the fourth annual report on the results obtained under the Agency's research contract programme. During the short life of this programme, which is not quite six years old, a total investment of more than three million dollars has been made to support research in selected fields at institutes in 50 Member States. Extensive summaries are presented herein for all final reports relating to contracts which were completed during 1963. As it is the policy of the Agency to encourage publication in the open scientific literature of the results of work done under research contracts, a number of papers have also appeared in the appropriate journals - the Agency having been notified of 75 such publications in 1963. A complete list of references to these is given at the end of this report. The scientific data presented in the summaries of course remain the responsibility of the contractor. The Agency, however, is responsible for any additional observations. The reports presented are related to research in the field of radioactive waste management and environmental sciences; health physics and radiation protection; radiobiology; nuclear reactors physics and nuclear fuels; radioisotope applications in agriculture and medicine

  10. Human Resources Administration: A School-Based Perspective. Fourth Edition

    Science.gov (United States)

    Smith, Richard

    2009-01-01

    Enhanced and updated, this Fourth Edition of Richard E. Smith's highly successful text examines the growing role of the principal in planning, hiring, staff development, supervision, and other human resource functions. The Fourth Edition includes new sections on ethics, induction, and the role of the mentor teacher. This edition also introduces…

  11. Tutorials in mathematical biosciences

    CERN Document Server

    2008-01-01

    The book offers an easy introduction to fast growing research areas in evolution of species, population genetics, ecological models, and population dynamics. The first two chapters review the concept and methodologies of phylogenetic trees; computational schemes and illustrations are given, including applications such as tracing the origin of SARS and influenza. The third chapter introduces the reader to ecological models, including predator-prey models. This chapter includes and introduction to reaction-diffusion equations, which are used to analyze the ecological models. The next chapter reviews a broad range of ongoing research in population dynamics, including evolution of dispersal models; it also features interesting mathematical theorems and lists open problems. The final chapter deals with gene frequencies under the action of migration and selection. The book is addressed to readers at the level of grad students and researchers. A background in PDEs is provided.

  12. Magnetic nanoparticles and biosciences

    Czech Academy of Sciences Publication Activity Database

    Šafařík, Ivo; Šafaříková, Miroslava

    New Delhi : Indian Society of Magnetic Fluid Research, 2003 - (Lal, K.), s. 171-173 [International Workshop on Recent Advances in Nanotechnology of Magnetic Fluids. New Delhi (IN), 22.01.2003-24.01.2003] R&D Projects: GA ČR(CZ) GA203/03/1070; GA MŠk(CZ) OC 523.80 Institutional research plan: CEZ:AV0Z6087904 Keywords : nanotechnology * magnetic fluid Subject RIV: JI - Composite Materials

  13. Proceedings: Fourth Workshop on Mining Scientific Datasets

    Energy Technology Data Exchange (ETDEWEB)

    Kamath, C

    2001-07-24

    Commercial applications of data mining in areas such as e-commerce, market-basket analysis, text-mining, and web-mining have taken on a central focus in the JCDD community. However, there is a significant amount of innovative data mining work taking place in the context of scientific and engineering applications that is not well represented in the mainstream KDD conferences. For example, scientific data mining techniques are being developed and applied to diverse fields such as remote sensing, physics, chemistry, biology, astronomy, structural mechanics, computational fluid dynamics etc. In these areas, data mining frequently complements and enhances existing analysis methods based on statistics, exploratory data analysis, and domain-specific approaches. On the surface, it may appear that data from one scientific field, say genomics, is very different from another field, such as physics. However, despite their diversity, there is much that is common across the mining of scientific and engineering data. For example, techniques used to identify objects in images are very similar, regardless of whether the images came from a remote sensing application, a physics experiment, an astronomy observation, or a medical study. Further, with data mining being applied to new types of data, such as mesh data from scientific simulations, there is the opportunity to apply and extend data mining to new scientific domains. This one-day workshop brings together data miners analyzing science data and scientists from diverse fields to share their experiences, learn how techniques developed in one field can be applied in another, and better understand some of the newer techniques being developed in the KDD community. This is the fourth workshop on the topic of Mining Scientific Data sets; for information on earlier workshops, see http://www.ahpcrc.org/conferences/. This workshop continues the tradition of addressing challenging problems in a field where the diversity of applications is

  14. Virginia Tech launches corporate partners program in biological sciences

    OpenAIRE

    Doss, Catherine

    2007-01-01

    Virginia Tech's Department of Biological Sciences in the university's College of Science, has launched a corporate partners program to foster collaboration between faculty, students and bio-science oriented corporations in the mid-Atlantic region. The so-named Biological Sciences Partners in Research and Education (BioSPIRE) program is designed to engage companies with an interest and capacity to impact education in the biological sciences.

  15. Natural gas imports and exports; Fourth quarterly report, 1993

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-12-31

    The Office of Fuels Programs prepares quarterly reports summarizing the data provided by companies authorized to import or export natural gas. Companies are required, as a condition of their authorizations, to file quarterly reports with the OFP. This report is for the fourth quarter of 1993 (October--December). Attachment A shows the percentage of takes to maximum firm contract levels and the weighted average per unit price for each of the long-term importers during the 5 most recent reporting quarters. Attachment B shows volumes and prices of gas purchased by long-term importers and exporters during the past 12 months. Attachment C shows volume and price information for gas imported on a short-term basis. Attachment D shows the gas exported on a short-term basis to Canada and Mexico. During 1993, data indicates gas imports grew by about 10 percent over the 1992 level (2328 vs. 2122 Bcf), with Canadian and Algerian imports increasing by 8 and 82 percent, respectively. During the same time period, exports declined by 41 percent (144 vs. 243 Bcf). Exports to Canada decreased 47 percent from the 1992 level (50 vs. 95 Bcf) and exports to Mexico decreased by 60 percent (38 vs. 95 Bcf).

  16. Fourth Annual HEDS-UP Forum

    Science.gov (United States)

    Johnson, Kathleen M. (Editor)

    2001-01-01

    The HEDS-UP (Human Exploration and Development of Space-University Partners) program was instituted to build new relationships between university, faculty, students, and NASA in support of the Human Exploration and Development of Space. The program has provided a mechanism for university students to explore problems of interest to NASA through student engineering design projects, led by a university professor or mentor, and aided by the HEDS-UP staff. HEDS-UP program management advised teams on the selection of projects that were aligned with the goals of the HEDS strategic enterprise, and provided contacts with NASA and industry professionals who served as mentors. Students became acquainted with objectives, strategies, development issues, and technological characteristics of space exploration programs. In doing so, they prepared themselves for future engineering challenges, often discovering that the program was on their critical path to professional advancement. Many of the ideas were innovative and of interest to NASA. Industry benefitted from HEDS-UP as a mechanism to converge with talented students about to enter the work force. In addition, universities became more involved in the teaching of space exploration, and students were encouraged and mentored as they included education outreach as an element in their work. This in turn highlighted their performance to others and universities in their communities.

  17. Fourth-order partial differential equations for effective image denoising

    Directory of Open Access Journals (Sweden)

    Seongjai Kim

    2009-04-01

    Full Text Available This article concerns mathematical image denoising methods incorporating fourth-order partial differential equations (PDEs. We introduce and analyze piecewise planarity conditions (PPCs with which unconstrained fourth-order variational models in continuum converge to a piecewise planar image. It has been observed that fourth-order variational models holding PPCs can restore better images than models without PPCs and second-order models. Numerical schemes are presented in detail and various examples in image denoising are provided to verify the claim.

  18. Fourth Issue of the Journal of Problem Based Learning in Higher Education

    DEFF Research Database (Denmark)

    Davidsen, Jacob; Ryberg, Thomas

    2015-01-01

    We are pleased to introduce the fourth issue of the Journal of Problem Based Learning in Higher Education. Current issue is composed of five research papers and two PBL cases. These address different aspects of PBL in higher education as and represent an international experiences and knowledge with...... reports on students‟ attitudes towards different types of exams (e.g. individual exams and group exams) in two engineering programs at Aalborg University. The fifth paper compares three different learning designs in an introductory computer science course on programming. The current issue explores a...

  19. Systems Prototyping with Fourth Generation Tools: One Answer to the Productivity Puzzle? AIR 1983 Annual Forum Paper.

    Science.gov (United States)

    Sholtys, Phyllis A.

    The development of information systems using an engineering approach employing both traditional programming techniques and nonprocedural languages is described. A fourth generation application tool is used to develop a prototype system that is revised and expanded as the user clarifies individual requirements. When fully defined, a combination of…

  20. Factor Structure of the Wechsler Intelligence Scales for Children-Fourth Edition among Referred Native American Students

    Science.gov (United States)

    Nakano, Selena; Watkins, Marley W.

    2013-01-01

    The Native American population is severely underrepresented in empirical test validity research despite being overrepresented in special education programs and at increased risk for psychoeducational evaluation. The structural validity of the Wechsler Intelligence Scale for Children-Fourth Edition (WISC-IV) was investigated with a sample of 176,…

  1. On a class of fourth order linear recurrence equations

    Directory of Open Access Journals (Sweden)

    Sui-Sun Cheng

    1984-03-01

    Full Text Available This paper is concerned with sequences that satisfy a class of fourth order linear recurrence equations. Basic properties of such sequences are derived. In addition, we discuss the oscillatory and nonoscillatory behavior of such sequences.

  2. Properties of bound states containing fourth family quarks

    International Nuclear Information System (INIS)

    The heavy fourth generation of quarks that have sufficiently small mixing with the three known SM families form hadrons. In the present work, we calculate the masses and decay constants of mesons containing either both quarks from the fourth generation or one from fourth family and the other from observed SM quarks, namely charm or bottom quark, in the framework of the QCD sum rules. In the calculations, the two gluon condensate diagrams as nonperturbative contributions are taken into account. The obtained numerical results are reduced to the known masses and decay constants of the b-bar b and c-bar c quarkonia, when the fourth family quark is replaced by the bottom or charm quark.

  3. Neurocysticercosis: regression of a fourth ventricular cyst with praziquantel.

    OpenAIRE

    Allcut, D A; Coulthard, A

    1991-01-01

    Symptomatic intraventricular cysticerci are said to respond poorly to the anticestodial agent praziquantel. A case is reported of rapid regression of a large cyst of the fourth ventricle after oral praziquantel, avoiding the need for surgery.

  4. Editorial Introduction to the Fourth Issue

    OpenAIRE

    Jannidis, Fotis; Rehbein, Malte; Romary, Laurent

    2013-01-01

    The 11th Annual Conference and Members' Meeting of the TEI Consortium, held at the University of Würzburg, Germany, from October 10 to 16, 2011, drew almost 160 participants from eighteen countries and three continents to Lower Franconia. Among the participants were several undergraduate students from the recently established BA program in Digital Humanities at Würzburg who not only volunteered to support the organization of this conference, but also had the opportunity to get first-hand insi...

  5. Proceedings - Fourth annual fluidized bed conference

    International Nuclear Information System (INIS)

    The proceedings contain 14 papers which deal with the following topics: anthracite culm combustion for process heat and cogeneration; case histories describing the performance of circulating fluidized bed combustors (CFBC); design and economics of CFBC; pulverizers for coal and sorbent preparation; ash removal systems; and the status of independent power generation and the Clean Coal Technology Program. Appendices contain manufacturers' installation lists with details of customers, fuels, steam conditions, and applications. All papers have been processed separately for inclusion on the data base

  6. Thermal Energy Storage: Fourth Annual Review Meeting

    Science.gov (United States)

    1980-01-01

    The development of low cost thermal energy storage technologies is discussed in terms of near term oil savings, solar energy applications, and dispersed energy systems for energy conservation policies. Program definition and assessment and research and technology development are considered along with industrial storage, solar thermal power storage, building heating and cooling, and seasonal thermal storage. A bibliography on seasonal thermal energy storage emphasizing aquifer thermal energy is included.

  7. Fourth Generation Pseudoscalar Quarkonium Production and Observability at Hadron Colliders

    CERN Document Server

    Arik, E; Cetin, S A; Sultansoy, S F; 10.1103/PhysRevD.66.116006

    2002-01-01

    The pseudoscalar quarkonium state, eta_4 1^S_0, formed by the Standard Model (SM) fourth generation quarks, is the best candidate among the fourth generation quarkonia to be produced at the LHC and VLHC. The production of this J^{PC} = 0^{-+} resonance is discussed and the background processes are studied to obtain the integrated luminosity limits for the discovery, depending on its mass.

  8. The Fourth SM Family Neutrino at Future Linear Colliders

    CERN Document Server

    Çiftçi, A K; Sultansoy, S

    2005-01-01

    It is known that Flavor Democracy favors the existence of the fourth standard model (SM) family. In order to give nonzero masses for the first three family fermions Flavor Democracy has to be slightly broken. A parametrization for democracy breaking, which gives the correct values for fundamental fermion masses and, at the same time, predicts quark and lepton CKM matrices in a good agreement with the experimental data, is proposed. The pair productions of the fourth SM family Dirac $(\

  9. Combined search for the quarks of a sequential fourth generation

    CERN Document Server

    Chatrchyan, Serguei; Sirunyan, Albert M; Tumasyan, Armen; Adam, Wolfgang; Aguilo, Ernest; Bergauer, Thomas; Dragicevic, Marko; Erö, Janos; Fabjan, Christian; Friedl, Markus; Fruehwirth, Rudolf; Ghete, Vasile Mihai; Hammer, Josef; Hörmann, Natascha; Hrubec, Josef; Jeitler, Manfred; Kiesenhofer, Wolfgang; Knünz, Valentin; Krammer, Manfred; Krätschmer, Ilse; Liko, Dietrich; Mikulec, Ivan; Pernicka, Manfred; Rahbaran, Babak; Rohringer, Christine; Rohringer, Herbert; Schöfbeck, Robert; Strauss, Josef; Taurok, Anton; Waltenberger, Wolfgang; Walzel, Gerhard; Widl, Edmund; Wulz, Claudia-Elisabeth; Mossolov, Vladimir; Shumeiko, Nikolai; Suarez Gonzalez, Juan; Bansal, Monika; Bansal, Sunil; Cornelis, Tom; De Wolf, Eddi A; Janssen, Xavier; Luyckx, Sten; Mucibello, Luca; Ochesanu, Silvia; Roland, Benoit; Rougny, Romain; Selvaggi, Michele; Staykova, Zlatka; Van Haevermaet, Hans; Van Mechelen, Pierre; Van Remortel, Nick; Van Spilbeeck, Alex; Blekman, Freya; Blyweert, Stijn; D'Hondt, Jorgen; Gonzalez Suarez, Rebeca; Kalogeropoulos, Alexis; Maes, Michael; Olbrechts, Annik; Van Doninck, Walter; Van Mulders, Petra; Van Onsem, Gerrit Patrick; Villella, Ilaria; Clerbaux, Barbara; De Lentdecker, Gilles; Dero, Vincent; Gay, Arnaud; Hreus, Tomas; Léonard, Alexandre; Marage, Pierre Edouard; Mohammadi, Abdollah; Reis, Thomas; Thomas, Laurent; Vander Marcken, Gil; Vander Velde, Catherine; Vanlaer, Pascal; Wang, Jian; Adler, Volker; Beernaert, Kelly; Cimmino, Anna; Costantini, Silvia; Garcia, Guillaume; Grunewald, Martin; Klein, Benjamin; Lellouch, Jérémie; Marinov, Andrey; Mccartin, Joseph; Ocampo Rios, Alberto Andres; Ryckbosch, Dirk; Strobbe, Nadja; Thyssen, Filip; Tytgat, Michael; Verwilligen, Piet; Walsh, Sinead; Yazgan, Efe; Zaganidis, Nicolas; Basegmez, Suzan; Bruno, Giacomo; Castello, Roberto; Ceard, Ludivine; Delaere, Christophe; Du Pree, Tristan; Favart, Denis; Forthomme, Laurent; Giammanco, Andrea; Hollar, Jonathan; Lemaitre, Vincent; Liao, Junhui; Militaru, Otilia; Nuttens, Claude; Pagano, Davide; Pin, Arnaud; Piotrzkowski, Krzysztof; Schul, Nicolas; Vizan Garcia, Jesus Manuel; Beliy, Nikita; Caebergs, Thierry; Daubie, Evelyne; Hammad, Gregory Habib; Alves, Gilvan; Correa Martins Junior, Marcos; De Jesus Damiao, Dilson; Martins, Thiago; Pol, Maria Elena; Henrique Gomes E Souza, Moacyr; Aldá Júnior, Walter Luiz; Carvalho, Wagner; Custódio, Analu; Da Costa, Eliza Melo; De Oliveira Martins, Carley; Fonseca De Souza, Sandro; Matos Figueiredo, Diego; Mundim, Luiz; Nogima, Helio; Oguri, Vitor; Prado Da Silva, Wanda Lucia; Santoro, Alberto; Soares Jorge, Luana; Sznajder, Andre; Souza Dos Anjos, Tiago; Bernardes, Cesar Augusto; De Almeida Dias, Flavia; Tomei, Thiago; De Moraes Gregores, Eduardo; Lagana, Caio; Da Cunha Marinho, Franciole; Mercadante, Pedro G; Novaes, Sergio F; Padula, Sandra; Genchev, Vladimir; Iaydjiev, Plamen; Piperov, Stefan; Rodozov, Mircho; Stoykova, Stefka; Sultanov, Georgi; Tcholakov, Vanio; Trayanov, Rumen; Vutova, Mariana; Dimitrov, Anton; Hadjiiska, Roumyana; Kozhuharov, Venelin; Litov, Leander; Pavlov, Borislav; Petkov, Peicho; Bian, Jian-Guo; Chen, Guo-Ming; Chen, He-Sheng; Jiang, Chun-Hua; Liang, Dong; Liang, Song; Meng, Xiangwei; Tao, Junquan; Wang, Jian; Wang, Xianyou; Wang, Zheng; Xiao, Hong; Xu, Ming; Zang, Jingjing; Zhang, Zhen; Asawatangtrakuldee, Chayanit; Ban, Yong; Guo, Shuang; Guo, Yifei; Li, Wenbo; Liu, Shuai; Mao, Yajun; Qian, Si-Jin; Teng, Haiyun; Wang, Dayong; Zhang, Linlin; Zhu, Bo; Zou, Wei; Avila, Carlos; Gomez, Juan Pablo; Gomez Moreno, Bernardo; Osorio Oliveros, Andres Felipe; Sanabria, Juan Carlos; Godinovic, Nikola; Lelas, Damir; Plestina, Roko; Polic, Dunja; Puljak, Ivica; Antunovic, Zeljko; Kovac, Marko; Brigljevic, Vuko; Duric, Senka; Kadija, Kreso; Luetic, Jelena; Morovic, Srecko; Attikis, Alexandros; Galanti, Mario; Mavromanolakis, Georgios; Mousa, Jehad; Nicolaou, Charalambos; Ptochos, Fotios; Razis, Panos A; Finger, Miroslav; Finger Jr, Michael; Assran, Yasser; Elgammal, Sherif; Ellithi Kamel, Ali; Khalil, Shaaban; Mahmoud, Mohammed; Radi, Amr; Kadastik, Mario; Müntel, Mait; Raidal, Martti; Rebane, Liis; Tiko, Andres; Eerola, Paula; Fedi, Giacomo; Voutilainen, Mikko; Härkönen, Jaakko; Heikkinen, Mika Aatos; Karimäki, Veikko; Kinnunen, Ritva; Kortelainen, Matti J; Lampén, Tapio; Lassila-Perini, Kati; Lehti, Sami; Lindén, Tomas; Luukka, Panja-Riina; Mäenpää, Teppo; Peltola, Timo; Tuominen, Eija; Tuominiemi, Jorma; Tuovinen, Esa; Ungaro, Donatella; Wendland, Lauri; Banzuzi, Kukka; Karjalainen, Ahti; Korpela, Arja; Tuuva, Tuure; Besancon, Marc; Choudhury, Somnath; Dejardin, Marc; Denegri, Daniel; Fabbro, Bernard; Faure, Jean-Louis; Ferri, Federico; Ganjour, Serguei; Givernaud, Alain; Gras, Philippe; Hamel de Monchenault, Gautier; Jarry, Patrick; Locci, Elizabeth; Malcles, Julie; Millischer, Laurent; Nayak, Aruna; Rander, John; Rosowsky, André; Shreyber, Irina; Titov, Maksym; Baffioni, Stephanie; Beaudette, Florian; Benhabib, Lamia; Bianchini, Lorenzo; Bluj, Michal; Broutin, Clementine; Busson, Philippe; Charlot, Claude; Daci, Nadir; Dahms, Torsten; Dobrzynski, Ludwik; Granier de Cassagnac, Raphael; Haguenauer, Maurice; Miné, Philippe; Mironov, Camelia; Naranjo, Ivo Nicolas; Nguyen, Matthew; Ochando, Christophe; Paganini, Pascal; Sabes, David; Salerno, Roberto; Sirois, Yves; Veelken, Christian; Zabi, Alexandre; Agram, Jean-Laurent; Andrea, Jeremy; Bloch, Daniel; Bodin, David; Brom, Jean-Marie; Cardaci, Marco; Chabert, Eric Christian; Collard, Caroline; Conte, Eric; Drouhin, Frédéric; Ferro, Cristina; Fontaine, Jean-Charles; Gelé, Denis; Goerlach, Ulrich; Juillot, Pierre; Le Bihan, Anne-Catherine; Van Hove, Pierre; Fassi, Farida; Mercier, Damien; Beauceron, Stephanie; Beaupere, Nicolas; Bondu, Olivier; Boudoul, Gaelle; Chasserat, Julien; Chierici, Roberto; Contardo, Didier; Depasse, Pierre; El Mamouni, Houmani; Fay, Jean; Gascon, Susan; Gouzevitch, Maxime; Ille, Bernard; Kurca, Tibor; Lethuillier, Morgan; Mirabito, Laurent; Perries, Stephane; Sordini, Viola; Tschudi, Yohann; Verdier, Patrice; Viret, Sébastien; Tsamalaidze, Zviad; Anagnostou, Georgios; Beranek, Sarah; Edelhoff, Matthias; Feld, Lutz; Heracleous, Natalie; Hindrichs, Otto; Jussen, Ruediger; Klein, Katja; Merz, Jennifer; Ostapchuk, Andrey; Perieanu, Adrian; Raupach, Frank; Sammet, Jan; Schael, Stefan; Sprenger, Daniel; Weber, Hendrik; Wittmer, Bruno; Zhukov, Valery; Ata, Metin; Caudron, Julien; Dietz-Laursonn, Erik; Duchardt, Deborah; Erdmann, Martin; Fischer, Robert; Güth, Andreas; Hebbeker, Thomas; Heidemann, Carsten; Hoepfner, Kerstin; Klingebiel, Dennis; Kreuzer, Peter; Magass, Carsten; Merschmeyer, Markus; Meyer, Arnd; Olschewski, Mark; Papacz, Paul; Pieta, Holger; Reithler, Hans; Schmitz, Stefan Antonius; Sonnenschein, Lars; Steggemann, Jan; Teyssier, Daniel; Weber, Martin; Bontenackels, Michael; Cherepanov, Vladimir; Erdogan, Yusuf; Flügge, Günter; Geenen, Heiko; Geisler, Matthias; Haj Ahmad, Wael; Hoehle, Felix; Kargoll, Bastian; Kress, Thomas; Kuessel, Yvonne; Nowack, Andreas; Perchalla, Lars; Pooth, Oliver; Sauerland, Philip; Stahl, Achim; Aldaya Martin, Maria; Behr, Joerg; Behrenhoff, Wolf; Behrens, Ulf; Bergholz, Matthias; Bethani, Agni; Borras, Kerstin; Burgmeier, Armin; Cakir, Altan; Calligaris, Luigi; Campbell, Alan; Castro, Elena; Costanza, Francesco; Dammann, Dirk; Diez Pardos, Carmen; Eckerlin, Guenter; Eckstein, Doris; Flucke, Gero; Geiser, Achim; Glushkov, Ivan; Gunnellini, Paolo; Habib, Shiraz; Hauk, Johannes; Hellwig, Gregor; Jung, Hannes; Kasemann, Matthias; Katsas, Panagiotis; Kleinwort, Claus; Kluge, Hannelies; Knutsson, Albert; Krämer, Mira; Krücker, Dirk; Kuznetsova, Ekaterina; Lange, Wolfgang; Lohmann, Wolfgang; Lutz, Benjamin; Mankel, Rainer; Marfin, Ihar; Marienfeld, Markus; Melzer-Pellmann, Isabell-Alissandra; Meyer, Andreas Bernhard; Mnich, Joachim; Mussgiller, Andreas; Naumann-Emme, Sebastian; Olzem, Jan; Perrey, Hanno; Petrukhin, Alexey; Pitzl, Daniel; Raspereza, Alexei; Ribeiro Cipriano, Pedro M; Riedl, Caroline; Ron, Elias; Rosin, Michele; Salfeld-Nebgen, Jakob; Schmidt, Ringo; Schoerner-Sadenius, Thomas; Sen, Niladri; Spiridonov, Alexander; Stein, Matthias; Walsh, Roberval; Wissing, Christoph; Autermann, Christian; Blobel, Volker; Draeger, Jula; Enderle, Holger; Erfle, Joachim; Gebbert, Ulla; Görner, Martin; Hermanns, Thomas; Höing, Rebekka Sophie; Kaschube, Kolja; Kaussen, Gordon; Kirschenmann, Henning; Klanner, Robert; Lange, Jörn; Mura, Benedikt; Nowak, Friederike; Peiffer, Thomas; Pietsch, Niklas; Rathjens, Denis; Sander, Christian; Schettler, Hannes; Schleper, Peter; Schlieckau, Eike; Schmidt, Alexander; Schröder, Matthias; Schum, Torben; Seidel, Markus; Sola, Valentina; Stadie, Hartmut; Steinbrück, Georg; Thomsen, Jan; Vanelderen, Lukas; Barth, Christian; Berger, Joram; Böser, Christian; Chwalek, Thorsten; De Boer, Wim; Descroix, Alexis; Dierlamm, Alexander; Feindt, Michael; Guthoff, Moritz; Hackstein, Christoph; Hartmann, Frank; Hauth, Thomas; Heinrich, Michael; Held, Hauke; Hoffmann, Karl-Heinz; Honc, Simon; Katkov, Igor; Komaragiri, Jyothsna Rani; Lobelle Pardo, Patricia; Martschei, Daniel; Mueller, Steffen; Müller, Thomas; Niegel, Martin; Nürnberg, Andreas; Oberst, Oliver; Oehler, Andreas; Ott, Jochen; Quast, Gunter; Rabbertz, Klaus; Ratnikov, Fedor; Ratnikova, Natalia; Röcker, Steffen; Scheurer, Armin; Schilling, Frank-Peter; Schott, Gregory; Simonis, Hans-Jürgen; Stober, Fred-Markus Helmut; Troendle, Daniel; Ulrich, Ralf; Wagner-Kuhr, Jeannine; Wayand, Stefan; Weiler, Thomas; Zeise, Manuel; Daskalakis, Georgios; Geralis, Theodoros; Kesisoglou, Stilianos; Kyriakis, Aristotelis; Loukas, Demetrios; Manolakos, Ioannis; Markou, Athanasios; Markou, Christos; Mavrommatis, Charalampos; Ntomari, Eleni; Gouskos, Loukas; Mertzimekis, Theodoros; Panagiotou, Apostolos; Saoulidou, Niki; Evangelou, Ioannis; Foudas, Costas; Kokkas, Panagiotis; Manthos, Nikolaos; Papadopoulos, Ioannis; Patras, Vaios; Bencze, Gyorgy; Hajdu, Csaba; Hidas, Pàl; Horvath, Dezso; Sikler, Ferenc; Veszpremi, Viktor; Vesztergombi, Gyorgy; Beni, Noemi; Czellar, Sandor; Molnar, Jozsef; Palinkas, Jozsef; Szillasi, Zoltan; Karancsi, János; Raics, Peter; Trocsanyi, Zoltan Laszlo; Ujvari, Balazs; Beri, Suman Bala; Bhatnagar, Vipin; Dhingra, Nitish; Gupta, Ruchi; Kaur, Manjit; Mehta, Manuk Zubin; Nishu, Nishu; Saini, Lovedeep Kaur; Sharma, Archana; Singh, Jasbir; Kumar, Ashok; Kumar, Arun; Ahuja, Sudha; Bhardwaj, Ashutosh; Choudhary, Brajesh C; Malhotra, Shivali; Naimuddin, Md; Ranjan, Kirti; Sharma, Varun; Shivpuri, Ram Krishen; Banerjee, Sunanda; Bhattacharya, Satyaki; Dutta, Suchandra; Gomber, Bhawna; Jain, Sandhya; Jain, Shilpi; Khurana, Raman; Sarkar, Subir; Sharan, Manoj; Abdulsalam, Abdulla; Choudhury, Rajani Kant; Dutta, Dipanwita; Kailas, Swaminathan; Kumar, Vineet; Mehta, Pourus; Mohanty, Ajit Kumar; Pant, Lalit Mohan; Shukla, Prashant; Aziz, Tariq; Ganguly, Sanmay; Guchait, Monoranjan; Maity, Manas; Majumder, Gobinda; Mazumdar, Kajari; Mohanty, Gagan Bihari; Parida, Bibhuti; Sudhakar, Katta; Wickramage, Nadeesha; Banerjee, Sudeshna; Dugad, Shashikant; Arfaei, Hessamaddin; Bakhshiansohi, Hamed; Etesami, Seyed Mohsen; Fahim, Ali; Hashemi, Majid; Hesari, Hoda; Jafari, Abideh; Khakzad, Mohsen; Mohammadi Najafabadi, Mojtaba; Paktinat Mehdiabadi, Saeid; Safarzadeh, Batool; Zeinali, Maryam; Abbrescia, Marcello; Barbone, Lucia; Calabria, Cesare; Chhibra, Simranjit Singh; Colaleo, Anna; Creanza, Donato; De Filippis, Nicola; De Palma, Mauro; Fiore, Luigi; Iaselli, Giuseppe; Lusito, Letizia; Maggi, Giorgio; Maggi, Marcello; Marangelli, Bartolomeo; My, Salvatore; Nuzzo, Salvatore; Pacifico, Nicola; Pompili, Alexis; Pugliese, Gabriella; Selvaggi, Giovanna; Silvestris, Lucia; Singh, Gurpreet; Venditti, Rosamaria; Zito, Giuseppe; Abbiendi, Giovanni; Benvenuti, Alberto; Bonacorsi, Daniele; Braibant-Giacomelli, Sylvie; Brigliadori, Luca; Capiluppi, Paolo; Castro, Andrea; Cavallo, Francesca Romana; Cuffiani, Marco; Dallavalle, Gaetano-Marco; Fabbri, Fabrizio; Fanfani, Alessandra; Fasanella, Daniele; Giacomelli, Paolo; Grandi, Claudio; Guiducci, Luigi; Marcellini, Stefano; Masetti, Gianni; Meneghelli, Marco; Montanari, Alessandro; Navarria, Francesco; Odorici, Fabrizio; Perrotta, Andrea; Primavera, Federica; Rossi, Antonio; Rovelli, Tiziano; Siroli, Gian Piero; Travaglini, Riccardo; Albergo, Sebastiano; Cappello, Gigi; Chiorboli, Massimiliano; Costa, Salvatore; Potenza, Renato; Tricomi, Alessia; Tuve, Cristina; Barbagli, Giuseppe; Ciulli, Vitaliano; Civinini, Carlo; D'Alessandro, Raffaello; Focardi, Ettore; Frosali, Simone; Gallo, Elisabetta; Gonzi, Sandro; Meschini, Marco; Paoletti, Simone; Sguazzoni, Giacomo; Tropiano, Antonio; Benussi, Luigi; Bianco, Stefano; Colafranceschi, Stefano; Fabbri, Franco; Piccolo, Davide; Fabbricatore, Pasquale; Musenich, Riccardo; Tosi, Silvano; Benaglia, Andrea; De Guio, Federico; Di Matteo, Leonardo; Fiorendi, Sara; Gennai, Simone; Ghezzi, Alessio; Malvezzi, Sandra; Manzoni, Riccardo Andrea; Martelli, Arabella; Massironi, Andrea; Menasce, Dario; Moroni, Luigi; Paganoni, Marco; Pedrini, Daniele; Ragazzi, Stefano; Redaelli, Nicola; Sala, Silvano; Tabarelli de Fatis, Tommaso; Buontempo, Salvatore; Carrillo Montoya, Camilo Andres; Cavallo, Nicola; De Cosa, Annapaola; Dogangun, Oktay; Fabozzi, Francesco; Iorio, Alberto Orso Maria; Lista, Luca; Meola, Sabino; Merola, Mario; Paolucci, Pierluigi; Azzi, Patrizia; Bacchetta, Nicola; Bisello, Dario; Branca, Antonio; Carlin, Roberto; Checchia, Paolo; Dorigo, Tommaso; Dosselli, Umberto; Gasparini, Fabrizio; Gasparini, Ugo; Gozzelino, Andrea; Kanishchev, Konstantin; Lacaprara, Stefano; Lazzizzera, Ignazio; Margoni, Martino; Meneguzzo, Anna Teresa; Pazzini, Jacopo; Pozzobon, Nicola; Ronchese, Paolo; Simonetto, Franco; Torassa, Ezio; Tosi, Mia; Vanini, Sara; Zotto, Pierluigi; Zumerle, Gianni; Gabusi, Michele; Ratti, Sergio P; Riccardi, Cristina; Torre, Paola; Vitulo, Paolo; Biasini, Maurizio; Bilei, Gian Mario; Fanò, Livio; Lariccia, Paolo; Lucaroni, Andrea; Mantovani, Giancarlo; Menichelli, Mauro; Nappi, Aniello; Romeo, Francesco; Saha, Anirban; Santocchia, Attilio; Spiezia, Aniello; Taroni, Silvia; Azzurri, Paolo; Bagliesi, Giuseppe; Boccali, Tommaso; Broccolo, Giuseppe; Castaldi, Rino; D'Agnolo, Raffaele Tito; Dell'Orso, Roberto; Fiori, Francesco; Foà, Lorenzo; Giassi, Alessandro; Kraan, Aafke; Ligabue, Franco; Lomtadze, Teimuraz; Martini, Luca; Messineo, Alberto; Palla, Fabrizio; Rizzi, Andrea; Serban, Alin Titus; Spagnolo, Paolo; Squillacioti, Paola; Tenchini, Roberto; Tonelli, Guido; Venturi, Andrea; Verdini, Piero Giorgio; Barone, Luciano; Cavallari, Francesca; Del Re, Daniele; Diemoz, Marcella; Fanelli, Cristiano; Grassi, Marco; Longo, Egidio; Meridiani, Paolo; Micheli, Francesco; Nourbakhsh, Shervin; Organtini, Giovanni; Paramatti, Riccardo; Rahatlou, Shahram; Sigamani, Michael; Soffi, Livia; Amapane, Nicola; Arcidiacono, Roberta; Argiro, Stefano; Arneodo, Michele; Biino, Cristina; Cartiglia, Nicolo; Costa, Marco; De Remigis, Paolo; Demaria, Natale; Mariotti, Chiara; Maselli, Silvia; Migliore, Ernesto; Monaco, Vincenzo; Musich, Marco; Obertino, Maria Margherita; Pastrone, Nadia; Pelliccioni, Mario; Potenza, Alberto; Romero, Alessandra; Sacchi, Roberto; Solano, Ada; Staiano, Amedeo; Vilela Pereira, Antonio; Belforte, Stefano; Candelise, Vieri; Cossutti, Fabio; Della Ricca, Giuseppe; Gobbo, Benigno; Marone, Matteo; Montanino, Damiana; Penzo, Aldo; Schizzi, Andrea; Heo, Seong Gu; Kim, Tae Yeon; Nam, Soon-Kwon; Chang, Sunghyun; Kim, Dong Hee; Kim, Gui Nyun; Kong, Dae Jung; Park, Hyangkyu; Ro, Sang-Ryul; Son, Dong-Chul; Son, Taejin; Kim, Jae Yool; Kim, Zero Jaeho; Song, Sanghyeon; Choi, Suyong; Gyun, Dooyeon; Hong, Byung-Sik; Jo, Mihee; Kim, Hyunchul; Kim, Tae Jeong; Lee, Kyong Sei; Moon, Dong Ho; Park, Sung Keun; Choi, Minkyoo; Kim, Ji Hyun; Park, Chawon; Park, Inkyu; Park, Sangnam; Ryu, Geonmo; Cho, Yongjin; Choi, Young-Il; Choi, Young Kyu; Goh, Junghwan; Kim, Min Suk; Kwon, Eunhyang; Lee, Byounghoon; Lee, Jongseok; Lee, Sungeun; Seo, Hyunkwan; Yu, Intae; Bilinskas, Mykolas Jurgis; Grigelionis, Ignas; Janulis, Mindaugas; Juodagalvis, Andrius; Castilla-Valdez, Heriberto; De La Cruz-Burelo, Eduard; Heredia-de La Cruz, Ivan; Lopez-Fernandez, Ricardo; Magaña Villalba, Ricardo; Martínez-Ortega, Jorge; Sánchez-Hernández, Alberto; Villasenor-Cendejas, Luis Manuel; Carrillo Moreno, Salvador; Vazquez Valencia, Fabiola; Salazar Ibarguen, Humberto Antonio; Casimiro Linares, Edgar; Morelos Pineda, Antonio; Reyes-Santos, Marco A; Krofcheck, David; Bell, Alan James; Butler, Philip H; Doesburg, Robert; Reucroft, Steve; Silverwood, Hamish; Ahmad, Muhammad; Ansari, Muhammad Hamid; Asghar, Muhammad Irfan; Hoorani, Hafeez R; Khalid, Shoaib; Khan, Wajid Ali; Khurshid, Taimoor; Qazi, Shamona; Shah, Mehar Ali; Shoaib, Muhammad; Bialkowska, Helena; Boimska, Bozena; Frueboes, Tomasz; Gokieli, Ryszard; Górski, Maciej; Kazana, Malgorzata; Nawrocki, Krzysztof; Romanowska-Rybinska, Katarzyna; Szleper, Michal; Wrochna, Grzegorz; Zalewski, Piotr; Brona, Grzegorz; Bunkowski, Karol; Cwiok, Mikolaj; Dominik, Wojciech; Doroba, Krzysztof; Kalinowski, Artur; Konecki, Marcin; Krolikowski, Jan; Almeida, Nuno; Bargassa, Pedrame; David Tinoco Mendes, Andre; Faccioli, Pietro; Ferreira Parracho, Pedro Guilherme; Gallinaro, Michele; Seixas, Joao; Varela, Joao; Vischia, Pietro; Belotelov, Ivan; Bunin, Pavel; Gavrilenko, Mikhail; Golutvin, Igor; Kamenev, Alexey; Karjavin, Vladimir; Kozlov, Guennady; Lanev, Alexander; Malakhov, Alexander; Moisenz, Petr; Palichik, Vladimir; Perelygin, Victor; Savina, Maria; Shmatov, Sergey; Smirnov, Vitaly; Volodko, Anton; Zarubin, Anatoli; Evstyukhin, Sergey; Golovtsov, Victor; Ivanov, Yury; Kim, Victor; Levchenko, Petr; Murzin, Victor; Oreshkin, Vadim; Smirnov, Igor; Sulimov, Valentin; Uvarov, Lev; Vavilov, Sergey; Vorobyev, Alexey; Vorobyev, Andrey; Andreev, Yuri; Dermenev, Alexander; Gninenko, Sergei; Golubev, Nikolai; Kirsanov, Mikhail; Krasnikov, Nikolai; Matveev, Viktor; Pashenkov, Anatoli; Tlisov, Danila; Toropin, Alexander; Epshteyn, Vladimir; Erofeeva, Maria; Gavrilov, Vladimir; Kossov, Mikhail; Lychkovskaya, Natalia; Popov, Vladimir; Safronov, Grigory; Semenov, Sergey; Stolin, Viatcheslav; Vlasov, Evgueni; Zhokin, Alexander; Belyaev, Andrey; Boos, Edouard; Bunichev, Viacheslav; Dubinin, Mikhail; Dudko, Lev; Gribushin, Andrey; Klyukhin, Vyacheslav; Kodolova, Olga; Lokhtin, Igor; Markina, Anastasia; Obraztsov, Stepan; Perfilov, Maxim; Petrushanko, Sergey; Popov, Andrey; Sarycheva, Ludmila; Savrin, Viktor; Snigirev, Alexander; Andreev, Vladimir; Azarkin, Maksim; Dremin, Igor; Kirakosyan, Martin; Leonidov, Andrey; Mesyats, Gennady; Rusakov, Sergey V; Vinogradov, Alexey; Azhgirey, Igor; Bayshev, Igor; Bitioukov, Sergei; Grishin, Viatcheslav; Kachanov, Vassili; Konstantinov, Dmitri; Korablev, Andrey; Krychkine, Victor; Petrov, Vladimir; Ryutin, Roman; Sobol, Andrei; Tourtchanovitch, Leonid; Troshin, Sergey; Tyurin, Nikolay; Uzunian, Andrey; Volkov, Alexey; Adzic, Petar; Djordjevic, Milos; Ekmedzic, Marko; Krpic, Dragomir; Milosevic, Jovan; Aguilar-Benitez, Manuel; Alcaraz Maestre, Juan; Arce, Pedro; Battilana, Carlo; Calvo, Enrique; Cerrada, Marcos; Chamizo Llatas, Maria; Colino, Nicanor; De La Cruz, Begona; Delgado Peris, Antonio; Domínguez Vázquez, Daniel; Fernandez Bedoya, Cristina; Fernández Ramos, Juan Pablo; Ferrando, Antonio; Flix, Jose; Fouz, Maria Cruz; Garcia-Abia, Pablo; Gonzalez Lopez, Oscar; Goy Lopez, Silvia; Hernandez, Jose M; Josa, Maria Isabel; Merino, Gonzalo; Puerta Pelayo, Jesus; Quintario Olmeda, Adrián; Redondo, Ignacio; Romero, Luciano; Santaolalla, Javier; Soares, Mara Senghi; Willmott, Carlos; Albajar, Carmen; Codispoti, Giuseppe; de Trocóniz, Jorge F; Brun, Hugues; Cuevas, Javier; Fernandez Menendez, Javier; Folgueras, Santiago; Gonzalez Caballero, Isidro; Lloret Iglesias, Lara; Piedra Gomez, Jonatan; Brochero Cifuentes, Javier Andres; Cabrillo, Iban Jose; Calderon, Alicia; Chuang, Shan-Huei; Duarte Campderros, Jordi; Felcini, Marta; Fernandez, Marcos; Gomez, Gervasio; Gonzalez Sanchez, Javier; Graziano, Alberto; Jorda, Clara; Lopez Virto, Amparo; Marco, Jesus; Marco, Rafael; Martinez Rivero, Celso; Matorras, Francisco; Munoz Sanchez, Francisca Javiela; Rodrigo, Teresa; Rodríguez-Marrero, Ana Yaiza; Ruiz-Jimeno, Alberto; Scodellaro, Luca; Sobron Sanudo, Mar; Vila, Ivan; Vilar Cortabitarte, Rocio; Abbaneo, Duccio; Auffray, Etiennette; Auzinger, Georg; Bachtis, Michail; Baillon, Paul; Ball, Austin; Barney, David; Benitez, Jose F; Bernet, Colin; Bianchi, Giovanni; Bloch, Philippe; Bocci, Andrea; Bonato, Alessio; Botta, Cristina; Breuker, Horst; Camporesi, Tiziano; Cerminara, Gianluca; Christiansen, Tim; Coarasa Perez, Jose Antonio; D'Enterria, David; Dabrowski, Anne; De Roeck, Albert; Di Guida, Salvatore; Dobson, Marc; Dupont-Sagorin, Niels; Elliott-Peisert, Anna; Frisch, Benjamin; Funk, Wolfgang; Georgiou, Georgios; Giffels, Manuel; Gigi, Dominique; Gill, Karl; Giordano, Domenico; Giunta, Marina; Glege, Frank; Gomez-Reino Garrido, Robert; Govoni, Pietro; Gowdy, Stephen; Guida, Roberto; Hansen, Magnus; Harris, Philip; Hartl, Christian; Harvey, John; Hegner, Benedikt; Hinzmann, Andreas; Innocente, Vincenzo; Janot, Patrick; Kaadze, Ketino; Karavakis, Edward; Kousouris, Konstantinos; Lecoq, Paul; Lee, Yen-Jie; Lenzi, Piergiulio; Lourenco, Carlos; Magini, Nicolo; Maki, Tuula; Malberti, Martina; Malgeri, Luca; Mannelli, Marcello; Masetti, Lorenzo; Meijers, Frans; Mersi, Stefano; Meschi, Emilio; Moser, Roland; Mozer, Matthias Ulrich; Mulders, Martijn; Musella, Pasquale; Nesvold, Erik; Orimoto, Toyoko; Orsini, Luciano; Palencia Cortezon, Enrique; Perez, Emmanuelle; Perrozzi, Luca; Petrilli, Achille; Pfeiffer, Andreas; Pierini, Maurizio; Pimiä, Martti; Piparo, Danilo; Polese, Giovanni; Quertenmont, Loic; Racz, Attila; Reece, William; Rodrigues Antunes, Joao; Rolandi, Gigi; Rovelli, Chiara; Rovere, Marco; Sakulin, Hannes; Santanastasio, Francesco; Schäfer, Christoph; Schwick, Christoph; Segoni, Ilaria; Sekmen, Sezen; Sharma, Archana; Siegrist, Patrice; Silva, Pedro; Simon, Michal; Sphicas, Paraskevas; Spiga, Daniele; Tsirou, Andromachi; Veres, Gabor Istvan; Vlimant, Jean-Roch; Wöhri, Hermine Katharina; Worm, Steven; Zeuner, Wolfram Dietrich; Bertl, Willi; Deiters, Konrad; Erdmann, Wolfram; Gabathuler, Kurt; Horisberger, Roland; Ingram, Quentin; Kaestli, Hans-Christian; König, Stefan; Kotlinski, Danek; Langenegger, Urs; Meier, Frank; Renker, Dieter; Rohe, Tilman; Sibille, Jennifer; Bäni, Lukas; Bortignon, Pierluigi; Buchmann, Marco-Andrea; Casal, Bruno; Chanon, Nicolas; Deisher, Amanda; Dissertori, Günther; Dittmar, Michael; Donegà, Mauro; Dünser, Marc; Eugster, Jürg; Freudenreich, Klaus; Grab, Christoph; Hits, Dmitry; Lecomte, Pierre; Lustermann, Werner; Marini, Andrea Carlo; Martinez Ruiz del Arbol, Pablo; Mohr, Niklas; Moortgat, Filip; Nägeli, Christoph; Nef, Pascal; Nessi-Tedaldi, Francesca; Pandolfi, Francesco; Pape, Luc; Pauss, Felicitas; Peruzzi, Marco; Ronga, Frederic Jean; Rossini, Marco; Sala, Leonardo; Sanchez, Ann - Karin; Starodumov, Andrei; Stieger, Benjamin; Takahashi, Maiko; Tauscher, Ludwig; Thea, Alessandro; Theofilatos, Konstantinos; Treille, Daniel; Urscheler, Christina; Wallny, Rainer; Weber, Hannsjoerg Artur; Wehrli, Lukas; Amsler, Claude; Chiochia, Vincenzo; De Visscher, Simon; Favaro, Carlotta; Ivova Rikova, Mirena; Millan Mejias, Barbara; Otiougova, Polina; Robmann, Peter; Snoek, Hella; Tupputi, Salvatore; Verzetti, Mauro; Chang, Yuan-Hann; Chen, Kuan-Hsin; Kuo, Chia-Ming; Li, Syue-Wei; Lin, Willis; Liu, Zong-Kai; Lu, Yun-Ju; Mekterovic, Darko; Singh, Anil; Volpe, Roberta; Yu, Shin-Shan; Bartalini, Paolo; Chang, Paoti; Chang, You-Hao; Chang, Yu-Wei; Chao, Yuan; Chen, Kai-Feng; Dietz, Charles; Grundler, Ulysses; Hou, George Wei-Shu; Hsiung, Yee; Kao, Kai-Yi; Lei, Yeong-Jyi; Lu, Rong-Shyang; Majumder, Devdatta; Petrakou, Eleni; Shi, Xin; Shiu, Jing-Ge; Tzeng, Yeng-Ming; Wan, Xia; Wang, Minzu; Adiguzel, Aytul; Bakirci, Mustafa Numan; Cerci, Salim; Dozen, Candan; Dumanoglu, Isa; Eskut, Eda; Girgis, Semiray; Gokbulut, Gul; Gurpinar, Emine; Hos, Ilknur; Kangal, Evrim Ersin; Karaman, Turker; Karapinar, Guler; Kayis Topaksu, Aysel; Onengut, Gulsen; Ozdemir, Kadri; Ozturk, Sertac; Polatoz, Ayse; Sogut, Kenan; Sunar Cerci, Deniz; 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Kunori, Shuichi; Kwan, Simon; Leonidopoulos, Christos; Linacre, Jacob; Lincoln, Don; Lipton, Ron; Lykken, Joseph; Maeshima, Kaori; Marraffino, John Michael; Maruyama, Sho; Mason, David; McBride, Patricia; Mishra, Kalanand; Mrenna, Stephen; Musienko, Yuri; Newman-Holmes, Catherine; O'Dell, Vivian; Prokofyev, Oleg; Sexton-Kennedy, Elizabeth; Sharma, Seema; Spalding, William J; Spiegel, Leonard; Tan, Ping; Taylor, Lucas; Tkaczyk, Slawek; Tran, Nhan Viet; Uplegger, Lorenzo; Vaandering, Eric Wayne; Vidal, Richard; Whitmore, Juliana; Wu, Weimin; Yang, Fan; Yumiceva, Francisco; Yun, Jae Chul; Acosta, Darin; Avery, Paul; Bourilkov, Dimitri; Chen, Mingshui; Cheng, Tongguang; Das, Souvik; De Gruttola, Michele; Di Giovanni, Gian Piero; Dobur, Didar; Drozdetskiy, Alexey; Field, Richard D; Fisher, Matthew; Fu, Yu; Furic, Ivan-Kresimir; Gartner, Joseph; Hugon, Justin; Kim, Bockjoo; Konigsberg, Jacobo; Korytov, Andrey; Kropivnitskaya, Anna; Kypreos, Theodore; Low, Jia Fu; Matchev, Konstantin; Milenovic, Predrag; 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Calvert, Brian; Eno, Sarah Catherine; Gomez, Jaime; Hadley, Nicholas John; Kellogg, Richard G; Kirn, Malina; Kolberg, Ted; Lu, Ying; Marionneau, Matthieu; Mignerey, Alice; Pedro, Kevin; Peterman, Alison; Skuja, Andris; Temple, Jeffrey; Tonjes, Marguerite; Tonwar, Suresh C; Twedt, Elizabeth; Apyan, Aram; Bauer, Gerry; Bendavid, Joshua; Busza, Wit; Butz, Erik; Cali, Ivan Amos; Chan, Matthew; Dutta, Valentina; Gomez Ceballos, Guillelmo; Goncharov, Maxim; Hahn, Kristan Allan; Kim, Yongsun; Klute, Markus; Krajczar, Krisztian; Li, Wei; Luckey, Paul David; Ma, Teng; Nahn, Steve; Paus, Christoph; Ralph, Duncan; Roland, Christof; Roland, Gunther; Rudolph, Matthew; Stephans, George; Stöckli, Fabian; Sumorok, Konstanty; Sung, Kevin; Velicanu, Dragos; Wenger, Edward Allen; Wolf, Roger; Wyslouch, Bolek; Yang, Mingming; Yilmaz, Yetkin; Yoon, Sungho; Zanetti, Marco; Cooper, Seth; Dahmes, Bryan; De Benedetti, Abraham; Franzoni, Giovanni; Gude, Alexander; Kao, Shih-Chuan; Klapoetke, Kevin; Kubota, Yuichi; Mans, Jeremy; Pastika, Nathaniel; Rusack, Roger; Sasseville, Michael; Singovsky, Alexander; Tambe, Norbert; Turkewitz, Jared; Cremaldi, Lucien Marcus; Kroeger, Rob; Perera, Lalith; Rahmat, Rahmat; Sanders, David A; Avdeeva, Ekaterina; Bloom, Kenneth; Bose, Suvadeep; Butt, Jamila; Claes, Daniel R; Dominguez, Aaron; Eads, Michael; Keller, Jason; Kravchenko, Ilya; Lazo-Flores, Jose; Malbouisson, Helena; Malik, Sudhir; Snow, Gregory R; Baur, Ulrich; Godshalk, Andrew; Iashvili, Ia; Jain, Supriya; Kharchilava, Avto; Kumar, Ashish; Shipkowski, Simon Peter; Smith, Kenneth; Alverson, George; Barberis, Emanuela; Baumgartel, Darin; Chasco, Matthew; Haley, Joseph; Nash, David; Trocino, Daniele; Wood, Darien; Zhang, Jinzhong; Anastassov, Anton; Kubik, Andrew; Mucia, Nicholas; Odell, Nathaniel; Ofierzynski, Radoslaw Adrian; Pollack, Brian; Pozdnyakov, Andrey; Schmitt, Michael; Stoynev, Stoyan; Velasco, Mayda; Won, Steven; Antonelli, Louis; Berry, Douglas; Brinkerhoff, Andrew; Hildreth, Michael; Jessop, Colin; 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Bolla, Gino; Bortoletto, Daniela; De Mattia, Marco; Everett, Adam; Hu, Zhen; Jones, Matthew; Koybasi, Ozhan; Kress, Matthew; Laasanen, Alvin T; Leonardo, Nuno; Maroussov, Vassili; Merkel, Petra; Miller, David Harry; Neumeister, Norbert; Shipsey, Ian; Silvers, David; Svyatkovskiy, Alexey; Vidal Marono, Miguel; Yoo, Hwi Dong; Zablocki, Jakub; Zheng, Yu; Guragain, Samir; Parashar, Neeti; Adair, Antony; Boulahouache, Chaouki; Ecklund, Karl Matthew; Geurts, Frank JM; Padley, Brian Paul; Redjimi, Radia; Roberts, Jay; Zabel, James; Betchart, Burton; Bodek, Arie; Chung, Yeon Sei; Covarelli, Roberto; de Barbaro, Pawel; Demina, Regina; Eshaq, Yossof; Garcia-Bellido, Aran; Goldenzweig, Pablo; Han, Jiyeon; Harel, Amnon; Miner, Daniel Carl; Vishnevskiy, Dmitry; Zielinski, Marek; Bhatti, Anwar; Ciesielski, Robert; Demortier, Luc; Goulianos, Konstantin; Lungu, Gheorghe; Malik, Sarah; Mesropian, Christina; Arora, Sanjay; Barker, Anthony; Chou, John Paul; Contreras-Campana, Christian; Contreras-Campana, Emmanuel; Duggan, Daniel; Ferencek, Dinko; Gershtein, Yuri; Gray, Richard; Halkiadakis, Eva; Hidas, Dean; Lath, Amitabh; Panwalkar, Shruti; Park, Michael; Patel, Rishi; Rekovic, Vladimir; Robles, Jorge; Rose, Keith; Salur, Sevil; Schnetzer, Steve; Seitz, Claudia; Somalwar, Sunil; Stone, Robert; Thomas, Scott; Cerizza, Giordano; Hollingsworth, Matthew; Spanier, Stefan; Yang, Zong-Chang; York, Andrew; Eusebi, Ricardo; Flanagan, Will; Gilmore, Jason; Kamon, Teruki; Khotilovich, Vadim; Montalvo, Roy; Osipenkov, Ilya; Pakhotin, Yuriy; Perloff, Alexx; Roe, Jeffrey; Safonov, Alexei; Sakuma, Tai; Sengupta, Sinjini; Suarez, Indara; Tatarinov, Aysen; Toback, David; Akchurin, Nural; Damgov, Jordan; Dragoiu, Cosmin; Dudero, Phillip Russell; Jeong, Chiyoung; Kovitanggoon, Kittikul; Lee, Sung Won; Libeiro, Terence; Roh, Youn; Volobouev, Igor; Appelt, Eric; Delannoy, Andrés G; Florez, Carlos; Greene, Senta; Gurrola, Alfredo; Johns, Willard; Johnston, Cody; Kurt, Pelin; Maguire, Charles; Melo, Andrew; Sharma, Monika; Sheldon, Paul; Snook, Benjamin; Tuo, Shengquan; Velkovska, Julia; Arenton, Michael Wayne; Balazs, Michael; Boutle, Sarah; Cox, Bradley; Francis, Brian; Goodell, Joseph; Hirosky, Robert; Ledovskoy, Alexander; Lin, Chuanzhe; Neu, Christopher; Wood, John; Yohay, Rachel; Gollapinni, Sowjanya; Harr, Robert; Karchin, Paul Edmund; Kottachchi Kankanamge Don, Chamath; Lamichhane, Pramod; Sakharov, Alexandre; Anderson, Michael; Belknap, Donald; Borrello, Laura; Carlsmith, Duncan; Cepeda, Maria; Dasu, Sridhara; Friis, Evan; Gray, Lindsey; Grogg, Kira Suzanne; Grothe, Monika; Hall-Wilton, Richard; Herndon, Matthew; Hervé, Alain; Klabbers, Pamela; Klukas, Jeffrey; Lanaro, Armando; Lazaridis, Christos; Leonard, Jessica; Loveless, Richard; Mohapatra, Ajit; Ojalvo, Isabel; Palmonari, Francesco; Pierro, Giuseppe Antonio; Ross, Ian; Savin, Alexander; Smith, Wesley H; Swanson, Joshua

    2012-01-01

    Results are presented from a search for a fourth generation of quarks produced singly or in pairs in a data set corresponding to an integrated luminosity of 5 inverse femtobarns recorded by the CMS experiment at the LHC in 2011. A novel strategy has been developed for a combined search for quarks of the up- and down-type in decay channels with at least one isolated muon or electron. Limits on the mass of the fourth-generation quarks and the relevant CKM matrix elements are derived in the context of a simple extension of the standard model with a sequential fourth generation of fermions. The existence of mass-degenerate fourth-generation quarks with masses below 685 GeV is excluded at 95% confidence level for minimal off-diagonal mixing between the third- and the fourth-generation quarks. With a mass difference of 25 GeV between the quark masses, the obtained limit on the masses of the fourth-generation quarks shifts by about +/- 20 GeV. This result significantly reduces the allowed parameter space for a fourt...

  10. Rosette-forming glioneuronal tumor of the fourth ventricle

    Directory of Open Access Journals (Sweden)

    Da-chun ZHAO

    2015-11-01

    Full Text Available Objective To explore the clinicopathological features of rosette-forming glioneuronal tumor (RGNT of the fourth ventricle.  Methods The clinical manifestations, neuroimaging, histopathological and immunohistochemical features were analysed in one case of RGNT of the fourth ventricle, and related literatures were reviewed.  Results A 24-year-old female presented with progressive dizziness under no obvious predisposing causes and dyskinesia such as stumbling. MRI revealed expansion of the fourth ventricle, and a mass with long T1WI and T2WI signal and clear boundary could be seen within the fourth ventricle. The border of tumor showed slight enhancement. At surgery, it was observed that the solitary tumor arised from the fourth ventricle and appeared well demarcated with rhomboid fossa. The tumor was blocking the aqueduct of sylvius before it was removed. Microscopically, the tumor exhibited both neuronic and astrocytic components. In the neuronic components, neurocytes formed neurocytic rosettes and perivascular pseudorosettes. At the center of the neurocytic rosettes, there was an eosinophilic core and some region consisted of microcysts. While the astrocytic components of the tumor revealed typical pilocytic astrocytoma structure. The center of neuronic rosettes and perivascular pseudorosettes displayed strong positive staining with synaptophysin (Syn and oligodendrocytes transcription factor-2 (Olig-2. The astrocytic components showed positive immunostaining of glial fibrillary acidic protein (GFAP. There were focal and partial positive immunostaining of neuron-specific enolase (NSE in both components of the tumor. The Ki-67 labeling index was 1.50%-2.00% in two components.  Conclusions Rosette-forming glioneuronal tumor of the fourth ventricle is an unusual neuronal and mixed neuronal-glial tumors. The imaging examination showed solid or mixed solid-cystic mass at the fourth ventricle with well demarcated border. The lesion has two

  11. Is there a fourth Futamura projection?

    DEFF Research Database (Denmark)

    Glück, Robert

    2009-01-01

    The three classic Futamura projections stand as a cornerstone in the development of partial evaluation. The observation by Futamura [1983], that compiler generators produced by his third projection are self-generating, and the insight by Klimov and Romanenko [1987], that Futamura's abstraction...... scheme can be continued beyond the three projections, are systematically investigated, and several new applications for compiler generators are proposed. Possible applications include the generation of quasi-online compiler generators and of compiler generators for domain-specific languages, and the...... bootstrapping of compiler generators from program specializers. From a theoretical viewpoint, there is equality between the class of self-generating compiler generators and the class of compiler generators produced by the third Futamura projection. This exposition may lead to new practical applications of...

  12. Development of a dedicated beam forming system for material and bioscience research with high intensity, small field electron beam of LILLYPUT 3 accelerator at Wroclaw Technology Park

    CERN Document Server

    Adrich, Przemysław; Wilk, Piotr; Chorowski, Maciej; Poliński, Jarosław; Bogdan, Piotr

    2016-01-01

    The primary use of the LILLYPUT 3 accelerator at the Nondestructive Testing Laboratory at Wroclaw Technology Park is X-ray radiography for nondestructive testing, including R&D of novel techniques for industrial and medical imaging. The scope of possible applications could be greatly extended by providing a system for irradiation with electron beam. The purpose of this work was to design such a system, especially for high dose rate, small field irradiations under cryogenic conditions for material and bioscience research. In this work, two possible solutions, based either on beam scanning or scattering and collimation, were studied and compared. It was found that under existing conditions efficiency of both systems would be comparable. The latter one was adopted due to its simplicity and much lower cost. The system design was optimized by means of detailed Monte Carlo modeling. The system is being currently fabricated at National Centre for Nuclear Research in \\'Swierk.

  13. Programming

    International Nuclear Information System (INIS)

    The programmer's task is often taken to be the construction of algorithms, expressed in hierarchical structures of procedures: this view underlies the majority of traditional programming languages, such as Fortran. A different view is appropriate to a wide class of problem, perhaps including some problems in High Energy Physics. The programmer's task is regarded as having three main stages: first, an explicit model is constructed of the reality with which the program is concerned; second, this model is elaborated to produce the required program outputs; third, the resulting program is transformed to run efficiently in the execution environment. The first two stages deal in network structures of sequential processes; only the third is concerned with procedure hierarchies. (orig.)

  14. Dark Coulomb binding of heavy neutrinos of fourth family

    Science.gov (United States)

    Belotsky, K. M.; Esipova, E. A.; Khlopov, M. Yu.; Laletin, M. N.

    2015-11-01

    Direct dark matter searches put severe constraints on the weakly interacting massive particles (WIMPs). These constraints cause serious troubles for the model of stable neutrino of fourth generation with mass around 50GeV. Though the calculations of primordial abundance of these particles make them in the charge symmetric case a sparse subdominant component of the modern dark matter, their presence in the universe would exceed the current upper limits by several orders of the magnitude. However, if quarks and leptons of fourth generation possess their own Coulomb-like y-interaction, recombination of pairs of heavy neutrinos and antineutrinos and their annihilation in the “neutrinium” atoms can play important role in their cosmological evolution, reducing their modern abundance far below the experimental upper limits. The model of stable fourth generation assumes that the dominant part of dark matter is explained by excessive Ū antiquarks, forming (ŪŪŪ)-- charged clusters, bound with primordial helium in nuclear-interacting O-helium (OHe) dark atoms. The y charge conservation implies generation of the same excess of fourth generation neutrinos, potentially dangerous WIMP component of this scenario. We show that due to y-interaction recombination of fourth neutrinos with OHe hides these WIMPs from direct WIMP searches, leaving the negligible fraction of free neutrinos, what makes their existence compatible with the experimental constraints.

  15. Fourth standard model family neutrino at future linear colliders

    International Nuclear Information System (INIS)

    It is known that flavor democracy favors the existence of the fourth standard model (SM) family. In order to give nonzero masses for the first three-family fermions flavor democracy has to be slightly broken. A parametrization for democracy breaking, which gives the correct values for fundamental fermion masses and, at the same time, predicts quark and lepton Cabibbo-Kobayashi-Maskawa (CKM) matrices in a good agreement with the experimental data, is proposed. The pair productions of the fourth SM family Dirac (ν4) and Majorana (N1) neutrinos at future linear colliders with √(s)=500 GeV, 1 TeV, and 3 TeV are considered. The cross section for the process e+e-→ν4ν4(N1N1) and the branching ratios for possible decay modes of the both neutrinos are determined. The decays of the fourth family neutrinos into muon channels (ν4(N1)→μ±W±) provide cleanest signature at e+e- colliders. Meanwhile, in our parametrization this channel is dominant. W bosons produced in decays of the fourth family neutrinos will be seen in detector as either di-jets or isolated leptons. As an example, we consider the production of 200 GeV mass fourth family neutrinos at √(s)=500 GeV linear colliders by taking into account di-muon plus four jet events as signatures

  16. Marco referencial para el análisis de los programas de enseñanza media en el área de física y de química propuestos por el Ministerio de Educación Pública Costarricense / Referencial frame work for the analysis of the third and fourth cycles study programs in the physics and chemistry fields proposed by the Costa Rican Public Education Ministry

    Directory of Open Access Journals (Sweden)

    Artavia Herrera, Yeudin

    2008-12-01

    Full Text Available Resumen: Este artículo presenta el marco referencial para el análisis de los programas de estudio propuestos por el Ministerio de Educación Pública (MEP en la enseñanza de la Física y la Química para la educación diversificada. Se considera el aporte que el MEP ofrece a los docentes de Física y Química, desde su posición de ente controlador de la educación costarricense. Así como el aporte de diversos autores que ofrecen variadas concepciones sobre la temática de enseñanza de la ciencia en general y de la Física y la Química en particular.Abstract:This article presents the referencial frame work for the analysis of the study programs proposed by the Public Education Ministry (MEP for the teaching of Physics and Chemistry in the third and fourth cicles. The contribution given to the Physics and Chemistry teachers by the Ministry of education has been taken into consideration since it`s the controlling entity in Costa Rican education. Besides, relevant ideas from several authors who have a variety of concepts about science teaching and Physics and Chemistry specifically were used to support the research.

  17. Proceedings of the fourth workshop on radiative capture 1990, October 19--21, 1990

    International Nuclear Information System (INIS)

    The Fourth Workshop on Radiative Capture was held at the Berkeley Conference Center, Berkeley, CA, on October 19--21, 1990. This two-day workshop, which had seventeen presentations, addressed current theoretical and experimental issues in the field of nucleon capture and other nuclear radiative processes. The scientific program was divided into three sessions: (1) radiative capture at low energies; (2) few-nucleon systems and capture at intermediate energies; and (3) nucleon capture and other radiative processes. This proceedings of the conference contains the abstracts of the presented talks and the transparencies used by the speakers. Summary papers of the talks are also included when they were supplied by the speaker

  18. Z-Area Saltstone Disposal Facility groundwater monitoring report, Fourth quarter 1995 and 1995 summary

    Energy Technology Data Exchange (ETDEWEB)

    Coward, L.S.

    1996-03-01

    Samples from the ZBG wells at the Z-Area Saltstone Disposal Facility are analyzed quarterly for constituents required by South Carolina Department of Health and Environmental Control Industrial Waster Permit IWP-217 and for other constituents as part of the Savannah River Site Groundwater Monitoring Program. During fourth quarter 1995, no constituents were reported above final Primary Drinking Water Standards or SRS flagging criteria. In the past, tritium has been detected sporadically in the ZBG wells at levels similar to those detected before Z Area began radioactive operations.

  19. Bergman kernel function on Hua construction of the fourth type

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    This paper introduces the Hua construction and presents the holomorphic automorphism group of the Hua construction of the fourth type. Utilizing the Bergman kernel function, under the condition of holomorphic automorphism and the standard complete orthonormal system of the semi-Reinhardt domain, the infinite series form of the Bergman kernel function is derived. By applying the properties of polynomial and Γ functions, various identification relations of the aforementioned form are developed and the explicit formula of the Bergman kernel function for the Hua construction of the fourth type is obtained, which suggest that many of the previously-reported results are only the special cases of our findings.

  20. Towards Reviving Electroweak Baryogenesis with a Fourth Generation

    Directory of Open Access Journals (Sweden)

    Wei-Shu Hou

    2013-01-01

    universe. However, it does not work within the standard model due to two reasons: (1 the strength of CP violation from the Kobayashi-Maskawa mechanism with three generations is too small; (2 the electroweak phase transition is not first order for the experimentally allowed Higgs boson mass. We discuss possibilities to solve these problems by introducing a fourth generation of fermions and how electroweak baryogenesis might be revived. We also discuss briefly the recent observation of a Higgs-like boson with mass around 125 GeV, which puts the fourth generation in a difficult situation, and the possible way out.

  1. A Search for the Fourth SM Family: Tevatron still has a Chance

    CERN Document Server

    Sahin, M; Turkoz, S

    2010-01-01

    Existence of the fourth family follows from the basics of the Standard Model. We discuss possible manifestations of the fourth SM family at existing and future colliders. The LHC and Tevatron potentials to discover the fourth SM family have been compared. The scenario with dominance of the anomalous decay modes of the fourth family quarks has been considered in details.

  2. Children's Fitness. Managing a Running Program.

    Science.gov (United States)

    Hinkle, J. Scott; Tuckman, Bruce W.

    1987-01-01

    A running program to increase the cardiovascular fitness levels of fourth-, fifth-, and sixth-grade children is described. Discussed are the running environment, implementation of a running program, feedback, and reinforcement. (MT)

  3. Fourth Generation Instructional Design Model: An Elaboration on Authoring Activities.

    Science.gov (United States)

    Christensen, Dean L.

    This paper presents the updated (fourth generation) version of the instructional design (ID) model, noting its emphasis on a scientific, iterative approach based upon research and theory in learning and instruction and upon applied development experience. Another important trend toward a scientific approach to instructional design is the increased…

  4. Integrating Fourth-Generation Tools Into the Applications Development Environment.

    Science.gov (United States)

    Litaker, R. G.; And Others

    1985-01-01

    Much of the power of the "information center" comes from its ability to effectively use fourth-generation productivity tools to provide information processing services. A case study of the use of these tools at Western Michigan University is presented. (Author/MLW)

  5. Installing an Integrated System and a Fourth-Generation Language.

    Science.gov (United States)

    Ridenour, David; Ferguson, Linda

    1987-01-01

    In the spring of 1986 Indiana State University converted to the Series Z software of Information Associates, an IBM mainframe, and Information Builders' FOCUS fourth-generation language. The beginning of the planning stage to product selection, training, and implementation is described. (Author/MLW)

  6. Gender Differences in Inference Generation by Fourth-Grade Students

    Science.gov (United States)

    Clinton, Virginia; Seipel, Ben; Broek, Paul; McMaster, Kristen L.; Kendeou, Panayiota; Carlson, Sarah E.; Rapp, David N.

    2014-01-01

    The purpose of this study was to determine if there are gender differences among elementary school-aged students in regard to the inferences they generate during reading. Fourth-grade students (130 females; 126 males) completed think-aloud tasks while reading one practice and one experimental narrative text. Females generated a larger number and a…

  7. The fourth suture in MACS facelifting – adressing the neck

    Directory of Open Access Journals (Sweden)

    Kaye, Kai O.

    2014-12-01

    Full Text Available Objective: The MACS facelift alone shows poor results on the medial neck in cases of pronounced, rigid platysmabands (McKinney III–IV°. The original MACS (“Minimal Access Cranial Suspension” facelift delirs excellent results on the midface and leads to sustainably improved outcome on the neck by adding a fourth suture on the platysma. McKinney type I–II platysmabands can be treated only by lateral approach of the ‘fourth suture’, type III–IV should be treated with closed platysma myotomy before.Methods: Between October 2007 and November 2013 a number of 219 patients were treated with the MACS facelift technique accomplished by a fourth suture on the platysma and liposuction or optional lipectomy on the neck. On 47 patients closed transcutaneous platysma myotomy was performed.Results: Surgery time lasted on average 2.5 hours and was performed under sedation with local anesthesia in 85%. Recovery time ranged between 14 to 16 days until the patients were back to work. Due to their health status 54% of our patients had an inpatient arrangement for one night and 46% an outpatient arrangement.Conclusion: The modification of the MACS lift with the ‘fourth suture’ on the platysma keeps the benefits of the original technique but improves the aesthetic outcome on the neck.

  8. Short Fourth Metacarpal Bone in Sickle Cell Anemia

    OpenAIRE

    Mohammad Bagherzadeh; Mahmoud Parham

    2015-01-01

    A 19-year-old man referred to the emergency department with generalized extremity pain. He had past medical history of sickle cell anemia. On physical examination, body temperature was normal and short right fourth-metacarpal bone was observed, but there was no sign of genetic disorders like turner syndrome, McCune-Albright, and hypothyroidism.

  9. Did that Dog Sniff Violate the Fourth Amendment?

    Science.gov (United States)

    Hawke, Catherine; Middleton, Tiffany

    2012-01-01

    Is sniffing at the front door of a private home by a trained narcotics detection dog a Fourth Amendment search requiring probable cause? Is a "drug dog" somehow like a manmade technology, such as a thermal imaging device? These were a couple of the questions recently presented to the U.S. Supreme Court during arguments in "Florida v. Jardines."…

  10. Operation Sluggie and Other Software Products from the Fourth Grade.

    Science.gov (United States)

    Nelson, Theresa Boedeker; Rogel, Jeannine

    1995-01-01

    Describes a project that taught groups of fourth graders how to develop instructional software for second and third graders in the areas of mathematics and science. Topics include project goals for students and the teacher; integrating technology; documentation and packaging; community involvement; and benefits to students. (LRW)

  11. Asymptotic behaviour of solutions of fourth order Dirichlet problems

    OpenAIRE

    Dall'Aglio, Paolo

    2000-01-01

    The asymptotic behaviour of solutions to fourth order Dirichlet elliptic problems, on varying domains, is studied through the decomposition into a system of second order ones, which leads to relaxed formulations with the introduction of measure terms. This allows to salve a shape optimization problem for a simply supported thin plate.

  12. The Value of the Fourth Year of Mathematics. Math Works

    Science.gov (United States)

    Achieve, Inc., 2013

    2013-01-01

    Too many students and educators view the senior year and graduation from high school as an end point, rather than one vital step along the education pipeline. Students who engage in a fourth year of math tap into and build upon their advanced analytic skills and are more likely to have better success in postsecondary course work, as they have…

  13. Fourth annual conference on materials for coal conversion and utilization

    Energy Technology Data Exchange (ETDEWEB)

    1979-01-01

    The fourth annual conference on materials for coal conversion and utilization was held October 9 to 11, 1979, at the National Bureau of Standards, Gaithersburg, Maryland. It was sponsored by the National Bureau of Standards, the Electric Power Research Institute, the US Department of Energy, and the Gas Research Institute. The papers have been entered individually into EDB and ERA. (LTN)

  14. Fourth Way in Action: Teacher Education in Singapore

    Science.gov (United States)

    Tan, Oon Seng

    2012-01-01

    Policy makers are often looking for solutions to develop their educational systems in today's highly competitive knowledge-based economy. Hargreaves and Shirley's Fourth Way provides a useful approach in analysing policy trends, successes and pitfalls, based on an observation of practices and research evidences in the west, particularly, the USA…

  15. Fourth-order discrete anisotropic boundary-value problems

    Directory of Open Access Journals (Sweden)

    Maciej Leszczynski

    2015-09-01

    Full Text Available In this article we consider the fourth-order discrete anisotropic boundary value problem with both advance and retardation. We apply the direct method of the calculus of variations and the mountain pass technique to prove the existence of at least one and at least two solutions. Non-existence of non-trivial solutions is also undertaken.

  16. Transactions of the fourth symposium on space nuclear power systems

    Energy Technology Data Exchange (ETDEWEB)

    El-Genk, M.S.; Hoover, M.D. (eds.)

    1987-01-01

    This paper contains the presented papers at the fourth symposium on space nuclear power systems. Topics of these papers include: space nuclear missions and applications, reactors and shielding, nuclear electric and nuclear propulsion, refractory alloys and high-temperature materials, instrumentation and control, energy conversion and storage, space nuclear fuels, thermal management, nuclear safety, simulation and modeling, and multimegawatt system concepts. (LSP)

  17. A curve flow evolved by a fourth order parabolic equation

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    We study a fourth order curve flow, which is the gradient flow of a functional describing the shapes of human red blood cells. We prove that for any smooth closed initial curve in R2, the flow has a smooth solution for all time and the solution subconverges to a critical point of the functional.

  18. A curve flow evolved by a fourth order parabolic equation

    Institute of Scientific and Technical Information of China (English)

    LIU YanNan; JIAN HuaiYu

    2009-01-01

    We study a fourth order curve flow,which is the gradient flow of a functional describing the shapes of human red blood cells.We prove that for any smooth closed initial curve in R2,the flow has a smooth solution for all time and the solution subconverges to a critical point of the functional.

  19. Constraints on Majorana dark matter from a fourth lepton family

    DEFF Research Database (Denmark)

    Hapola, T.; Jarvinen, M.; Kouvaris, C.;

    2014-01-01

    We study the possibility of dark matter in the form of heavy neutrinos from a fourth lepton family with helicity suppressed couplings such that dark matter is produced thermally via annihilations in the early Universe. We present all possible constraints for this scenario coming from LHC...... account for the dark matter abundance....

  20. Short-term energy outlook: Quarterly projections, fourth quarter 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-10-14

    The Energy Information Administration (EIA) prepares quarterly short-term energy supply, demand, and price projections for printed publication in January, April, July, and October in the Short-Term Energy Outlook. The details of these projections, as well as monthly updates on or about the 6th of each interim month, are available on the internet at: www.eia.doe.gov/emeu/steo/pub/contents.html. The forecast period for this issue of the Outlook extends from the fourth quarter of 1997 through the fourth quarter of 1998. Values for the fourth quarter of 1997, however, are preliminary EIA estimates (for example, some monthly values for petroleum supply and disposition are derived in part from weekly data reported in EIA`s Weekly Petroleum Status Report) or are calculated from model simulations that use the latest exogenous information available (for example, electricity sales and generation are simulated by using actual weather data). The historical energy data, compiled in the fourth quarter 1997 version of the Short-Term Integrated Forecasting System (STIFS) database, are mostly EIA data regularly published in the Monthly Energy Review, Petroleum Supply Monthly, and other EIA publications. Minor discrepancies between the data in these publications and the historical data in this Outlook are due to independent rounding. The STIFS model is driven principally by three sets of assumptions or inputs: estimates of key macroeconomic variables, world oil price assumptions, and assumptions about the severity of weather. 19 tabs.

  1. High Temperature Materials Laboratory fourth annual report, October 1990--September 1991

    Energy Technology Data Exchange (ETDEWEB)

    Tennery, V.J.; Foust, F.M.

    1991-12-01

    The High Temperature Materials Laboratory has completed its fourth year of operation as a designated Department of Energy User Facility at the Oak Ridge National Laboratory. Growth of the user program is evidenced by the number of outside institutions who have executed user agreements since the facility began operation in 1987. A total of 118 nonproprietary agreements (62 university and 56 industry) and 28 proprietary agreements (2 university, 26 industry) are now in effect. Five other government facilities have also participated in the user program. Sixty-free nonproprietary research proposals (38 from university, 26 from industry, and 1 other government facility) and four proprietary proposals were considered during this reporting period. Research projects active in FY 1991 are summarized.

  2. The integration of the "spirituality in medicine" curriculum into the osteopathic communication curriculum at Kansas City University of Medicine and Biosciences.

    Science.gov (United States)

    Talley, Jan A; Magie, Richard

    2014-01-01

    With grant funding from the John Templeton Spirituality and Medicine Curricular Award to the George Washington Institute for Spirituality and Health, faculty at Kansas City University of Medicine and Biosciences (KCUMB) developed the "Spirituality in Medicine" curriculum. In developing the curriculum, faculty took into consideration competencies required by the Association of American Medical Colleges and qualitative results from surveys of medical school applicants and enrolled students. Strategies for curriculum delivery included lectures, panel discussions, role-playing, and training in the use of a spirituality assessment tool. A majority of the 250 students who received the training in 2010-2011 were able to demonstrate the following competencies: (1) being sensitive to patients' spiritual and cultural needs, (2) assessing patients' and their own spiritual needs, (3) appropriately using chaplain services for patient care, and (4) understanding the effects of health disparities and ethical issues on patient care. Challenges to implementation included a reduction in chaplain availability due to the economic downturn, a lack of student exposure to direct patient care during shadowing, too little religious diversity among chaplains, and changes in assignment schedules. New competencies required by the National Board of Osteopathic Medical Examiners overlap with and help ensure sustainability of the Spirituality in Medicine curriculum. KCUMB leaders have incorporated the use of the spirituality assessment tool into other parts of the curriculum and into service experiences, and they have introduced a new elective in palliative care. Synergistic efforts by faculty leaders for this initiative were critical to the implementation of this curriculum. PMID:24280841

  3. Spinal accessory nerve schwannomas masquerading as a fourth ventricular lesion

    Directory of Open Access Journals (Sweden)

    Shyam Sundar Krishnan

    2015-01-01

    Full Text Available Schwannomas are benign lesions that arise from the nerve sheath of cranial nerves. The most common schwannomas arise from the 8 th cranial nerve (the vestibulo-cochlear nerve followed by trigeminal and facial nerves and then from glossopharyngeal, vagus, and spinal accessory nerves. Schwannomas involving the oculomotor, trochlear, abducens and hypoglossal nerves are very rare. We report a very unusual spinal accessory nerve schwannoma which occupied the fourth ventricle and extended inferiorly to the upper cervical canal. The radiological features have been detailed. The diagnostic dilemma was due to its midline posterior location mimicking a fourth ventricular lesion like medulloblastoma and ependymoma. Total excision is the ideal treatment for these tumors. A brief review of literature with tabulations of the variants has been listed.

  4. Galaxy rotation curves from a fourth order gravity

    CERN Document Server

    Mishra, Priti

    2012-01-01

    While the standard and most popular explanation for the flatness of galaxy rotation curves is dark matter, one cannot at this stage rule out an explanation based on a modified law of gravitation, which agrees with Newtonian gravitation on the scale of the solar system, but differs from it on larger length scales. Examples include Modfied Newtonian Dynamics [MOND] and Scalar-Tensor-Vector Gravity [STVG]. Here we report on a fourth order modification of the Poisson equation which yields the same Yukawa type modification of Newtonian gravity as STVG, and which can explain flat galaxy rotation curves for a large sample of galaxies, once specific values for two parameters have been chosen. We speculate on two possible origins for this modified Poisson equation: first, a possible fourth order modification of general relativity, and second, quadrupole gravitational polarization induced on a galaxy because of the pull of neighbouring galaxies.

  5. Perception of biographical time in the fourth age: cases study

    Directory of Open Access Journals (Sweden)

    Paula Analía Pochintesta

    2015-02-01

    Full Text Available Since human life passes through an irreversible time axis, the passage of time makes us face with the idea of finiteness. As people age there is a change in their time perception and in the idea of their own death. With the aim of studying the changes related to their own temporality, this study analyses biographical trajectories of people in the fourth age. The analysis is based on three pillars: vital projects, organization of everyday life and bodily changes. An exploratory qualitative study was carried out based on 23 biographical interviews that constituted an intentional sample of self-validated persons, born between 1917 and 1932, from different socio-economic status and residing in the Metropolitan Area of Buenos Aires, Argentina. Results suggest that for people in their fourth age, time perception is narrow. There is a decentering of oneself and a concern about transcendence and continuity (symbolic and biological both related to grandparantage.  

  6. Galaxy rotation curves from a fourth order gravity

    International Nuclear Information System (INIS)

    While the standard and most popular explanation for the flatness of galaxy rotation curves is dark matter, one cannot at this stage rule out an explanation based on a modified law of gravitation, which agrees with Newtonian gravitation on the scale of the Solar system, but differs from it on larger length scales. Examples include Modfied Newtonian Dynamics (MOND) and Scalar-Tensor-Vector Gravity (STVG). Here, we have reported on a fourth order modification of the Poisson equation, which yields the same Yukawa type modification of Newtonian gravity as STVG, and which can explain flat galaxy rotation curves for a large sample of galaxies, once specific values for two parameters have been chosen. We have speculated on two possible origins for this modified Poisson equation: First, a possible fourth order modification of general relativity, and second, quadrupole gravitational polarization induced on a galaxy because of the pull of neighbouring galaxies

  7. Fourth Meeting of China-Spain Forum Held in Madrid

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    <正>Chairman Hu Qili and Executive Chairman Chen Haosu of the Chinese Committee of the China-Spain Forum(CSF) led a Chinese delegation to attend the Fourth Meeting of the CSF in Madrid from November 27 to 28,2007.The meeting with the theme of "Harmony,Development and Gaining Win-Win Results" was jointly sponsored by the CPAFFC,the CSF Chinese Committee,the Spanish Ministry of Foreign Affairs and the Spain China Council Foundation.

  8. Spinal accessory nerve schwannomas masquerading as a fourth ventricular lesion

    OpenAIRE

    Shyam Sundar Krishnan; Sivaram Bojja; Madabhushi Chakravarthy Vasudevan

    2015-01-01

    Schwannomas are benign lesions that arise from the nerve sheath of cranial nerves. The most common schwannomas arise from the 8 th cranial nerve (the vestibulo-cochlear nerve) followed by trigeminal and facial nerves and then from glossopharyngeal, vagus, and spinal accessory nerves. Schwannomas involving the oculomotor, trochlear, abducens and hypoglossal nerves are very rare. We report a very unusual spinal accessory nerve schwannoma which occupied the fourth ventricle and extended inferior...

  9. Fourth Generation Nuclear Weapons: Military effectiveness and collateral effects

    OpenAIRE

    Gsponer, Andre

    2005-01-01

    The paper begins with a general introduction and update to Fourth Generation Nuclear Weapons (FGNW), and then addresses some particularly important military aspects on which there has been only limited public discussion so far. These aspects concern the unique military characteristics of FGNWs which make them radically different from both nuclear weapons based on previous-generation nuclear-explosives and from conventional weapons based on chemical-explosives: yields in the 1 to 100 tons rang...

  10. New Efficient Fourth Order Method for Solving Nonlinear Equations

    Directory of Open Access Journals (Sweden)

    Farooq Ahmad

    2013-12-01

    Full Text Available In a paper [Appl. Math. Comput., 188 (2 (2007 1587--1591], authors have suggested and analyzed a method for solving nonlinear equations. In the present work, we modified this method by using the finite difference scheme, which has a quintic convergence. We have compared this modified Halley method with some other iterative of fifth-orders convergence methods, which shows that this new method having convergence of fourth order, is efficient.

  11. Regional forecasting with global atmospheric models; Fourth year report

    Energy Technology Data Exchange (ETDEWEB)

    Crowley, T.J.; North, G.R.; Smith, N.R. [Applied Research Corp., College Station, TX (United States)

    1994-05-01

    The scope of the report is to present the results of the fourth year`s work on the atmospheric modeling part of the global climate studies task. The development testing of computer models and initial results are discussed. The appendices contain studies that provide supporting information and guidance to the modeling work and further details on computer model development. Complete documentation of the models, including user information, will be prepared under separate reports and manuals.

  12. ITALIAN MEDIUM-SIZED ENTERPRISES AND THE FOURTH CAPITALISM

    OpenAIRE

    Schilirò, Daniele

    2012-01-01

    The work addresses the issue of Italian medium-sized enterprises of the fourth capitalism. The question is whether this business model is going to last and actually represent a new model for global competition. This contribution examines the features of the model of the medium industrial enterprise. It also investigates the performance of the Italian medium-sized enterprises, comparing with large companies. The analysis of the data, albeit at a descriptive level using data published by Mediob...

  13. Proceedings of the fourth workshop on grand unification

    Energy Technology Data Exchange (ETDEWEB)

    Weldon, H.A.; Langacker, P.; Steinhardt, P.J.

    1983-01-01

    This book compiles the papers presented at the fourth conference of grand unified theories of nuclear physics held in University of Pennsylvania April 1983. The topics covered were proton decay theory; angular distribution and flux of atmospheric neutrinos; atmospheric neutrinos and astrophysical neutrinos in proton decay experiments; review of future nucleon decay experiments; monopole experiments; searches for magnetic monopole; monopoles, gauge, fields and anomalies; darkmatter, galaxies and voids; adiabatic fluctuations; supersymmetry, supergravity, and Kaluza-Klein theories; superstring theory and superunification.

  14. Proceedings of the Fourth International Workshop on Advances in Electrocorticography

    OpenAIRE

    Ritaccio, Anthony; Brunner, Peter; Crone, Nathan E.; Gunduz, Aysegul; Hirsch, Lawrence J.; Kanwisher, Nancy; Litt, Brian; Miller, Kai; Moran, Daniel; Parvizi, Josef; Ramsey, Nick; Richner, Thomas J.; Tandon, Niton; Williams, Justin; Schalk, Gerwin

    2013-01-01

    The Fourth International Workshop on Advances in Electrocorticography (ECoG) convened in New Orleans, LA, on October 11-12, 2012. The proceedings of the workshop serves as an accurate record of the most contemporary clinical and experimental work on brain surface recording and represents the insights of a unique multidisciplinary ensemble of expert clinicians and scientists. Presentations covered a broad range of topics, including innovations in passive functional mapping, increased understan...

  15. The Fourth Attempt to Construct a Politics of Welfare Obligations

    OpenAIRE

    Fitzpatrick, Tony

    2005-01-01

    Since the 1980s there have been three main attempts to ground citizenship upon the principles of duty, obligation and responsibility: conservative, communitarian and Third Way. Each of these are reviewed below. The principal task of this article, though, is to examine the emergence of a fourth attempt which, by relating duty to equality through the principle of reciprocity, represents a synthesis of traditional social democracy with the new politics of obligation. Our focus will be upon The...

  16. Fourth Beijing Human Rights Forum Held in Beijing

    Institute of Scientific and Technical Information of China (English)

    OUR STAFF REPORTER

    2012-01-01

    The Fourth Beijing Forum on Human Rights was held in Beijing from September 21-23,2011.Jointly sponsored by the China Society for Human Rights Studies and the China Human Rights Development Foundation,the forum was centered on the theme of "Cultural Tradition,Concept of Values and Human Rights." Attending were nearly 100senior human rights officials,specialists and scholars from 26 countries and regions as well as the United Nations and other international organizations.

  17. Applied Meteorology Unit (AMU) Quarterly Report Fourth Quarter FY-04

    Science.gov (United States)

    Bauman, William; Wheeler, Mark; Lambert, Winifred; Case, Jonathan; Short, David

    2004-01-01

    This report summarizes the Applied Meteorology Unit (A MU) activities for the fourth quarter of Fiscal Year 2004 (July -Sept 2004). Tasks covered are: (1) Objective Lightning Probability Forecast: Phase I, (2) Severe Weather Forecast Decision Aid, (3) Hail Index, (4) Shuttle Ascent Camera Cloud Obstruction Forecast, (5) Advanced Regional Prediction System (ARPS) Optimization and Training Extension and (5) User Control Interface for ARPS Data Analysis System (ADAS) Data Ingest.

  18. Are Consumer Decision-Making Phenomena a Fourth Market Failure?

    OpenAIRE

    Lunn, Pete

    2013-01-01

    This paper challenges the increasingly common view that the findings of behavioural economics constitute a fourth type of market failure. The market failure framework elevates the standard competitive market model to the status of an ideal. It provides us with tools to identify departures from the ideal model and to deduce a direction policy might take to restore it. Many behavioural phenomena also imply departures from the ideal model. Yet rather than allowing us to deduce a good direction f...

  19. Pseudo-randomness of the fourth class of GSS sequences

    Institute of Scientific and Technical Information of China (English)

    HU Yupu; XIAO Guozhen

    2004-01-01

    This paper discusses pseudo-randomness of a periodic sequence, named the fourth class of GSS sequence. We get the ollowing results: ① Its least period always reaches the maximum (that is, 2n-1). ② Its least period and linear complexity keep robust under single-symbol-substitution. ③ It has good Iow-degree-auto-correlation feature. ④It has good short-length-run-distribution.

  20. Fourth China-South Asia International Cultural Forum

    Institute of Scientific and Technical Information of China (English)

    2013-01-01

    <正>The Fourth China-South Asia International Cultural Forum on "revitalizing people-to-people cultural exchanges for peace and prosperity",co-sponsored by the CPAFFC and Shenzhen University,was held in Shenzhen from November 14 to 17,2012. More than 60 experts and scholars from over 40 Chinese research institutes and their colleagues from India,the United States and Singapore engaged in in-depth discussions on economic cooperation and cultural development,the present condi-

  1. Fourth Regional Meeting: Nuclear Energy in Central Europe, Proceedings

    International Nuclear Information System (INIS)

    Fourth Regional Meeting for Nuclear Energy in Central Europe is an annual meeting of the Nuclear Society of Slovenia. The proceedings contain 89 articles from Slovenia, surrounding countries and countries of the Central and Eastern European Region. Topics are: Research Reactors, Reactor Physics, Probabilistic Safety Assessment, Severe Accidents, Ageing and Integrity, Thermal Hydraulics, NPP Operation Experiance, Radioactive Waste Management, Environment and Other Aspects, Public and Nuclear Energy, SG Replacement and Plant Uprating.

  2. A rare case of fourth consecutive fallopian tube ectopic pregnancy

    Directory of Open Access Journals (Sweden)

    Divya Pandey

    2015-04-01

    Full Text Available We present a case of consecutive fourth tubal ectopic in a patient which was managed by emergency laparotomy and salpingectomy. The first two tubal ectopic pregnancies occurred on the right side while the subsequent two occurred on the contralateral side. The patient was planned for IVF-ET. [Int J Reprod Contracept Obstet Gynecol 2015; 4(2.000: 490-492

  3. Conservation laws for fourth order systems in four dimensions

    OpenAIRE

    Lamm, T.; Riviere, T.

    2008-01-01

    Following an approach of the second author for conformally invariant variational problems in two dimensions, we show in four dimensions the existence of a conservation law for fourth order systems, which includes both intrinsic and extrinsic biharmonic maps. With the help of this conservation law we prove the continuity of weak solutions of this system. Moreover we use the conservation law to derive the existence of a unique global weak solution of the extrinsic biharmonic map flow in the ene...

  4. Quarterly environmental data summary for fourth quarter 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    The Quarterly Environmental Data Summary (QEDS) for the fourth quarter of 1997 is prepared in support of the Weldon Spring Site Remedial Action Project Federal Facilities Agreement. The data presented constitute the QEDS. The data were received from the contract laboratories, verified by the Weldon Spring Site verification group and, except for air monitoring data and site KPA generated data (uranium analyses), merged into the data base during the fourth quarter of 1997. Air monitoring data presented are the most recent complete sets of quarterly data. Air data are not stored in the data base and KPA data are not merged into the regular data base. Significant data, defined as data values that have exceeded defined ``above normal`` level 2 values, are discussed in this letter for Environmental Monitoring Plan (EMP) generated data only. Above normal level 2 values are based, in ES and H procedures, on historical high values, DOE Derived Concentration Guides (DCGs), NPDES limits and other guidelines. The procedures also establish actions to be taken in response to such data. Data received and verified during the fourth quarter were within a permissible range of variability except for those which are detailed.

  5. Communication experiences of Taipower's fourth NPS - The Lungman Project

    International Nuclear Information System (INIS)

    In 1993, Taipower sold 92.1 TWh of electricity, which represented 42.5 of the total energy demanded in Taiwan. In late 60's, Taipower decided to build a number of nuclear power stations in order to diverse the energy resources and supply enough electricity. Due to the ruling party KMT had absolutely influence in the country, and whole nation believed that the major constructions were symbols of progress, the construction of nuclear power stations were proceeded smoothly. Three nuclear power stations, two units each, were then built one by one during the decade of 70's without much effort regarding communication to the general public. Yet, the seventh and eighth units of the fourth NPP, also the Lungman Project ) faced changing era. Not only the general public became more conservative to nuclear issues due to the TMI and Chernobyl accidents, also the nation political structure was changed. A major opposition party - formed in 1987 having a platform indicating that they aim to create a nuclear-free homeland. The society of Taiwan was more liberal and diversified than ever before. Although the ruling party is still being able to dominate more than half seats in the Legislative Yuan, the diversity of whole society makes the work of some major constructions harder and harder. Obviously, Taipower has to do extra work on the communication to the public. In Taiwan, the antinuclear movement is part of the against ruling party movements. Although the antinuclear groups failed to block the budget for Lungman Project at the Congress, they didn't give up. Taipower's nuclear communication system has been experienced three different stages since 1990. The major targets in this stage were the news media, government officers and the legislators. In June, 1992, the Congress voted for unfreezing the budget of 4th NPP. After experienced the annual fight for budget of the 4th NPP, Taipower realized that it is necessary to perform public communication constantly. Taipower has done the

  6. OSCILLATION CRITERIA FOR A FOURTH ORDER SUBLINEAR DYNAMIC EQUATION ON TIME SCALE

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Some new criteria for the oscillation of a fourth order sublinear and/or linear dynamic equation on time scale are established. Our results are new for the corresponding fourth order differential equations as well as difference equations.

  7. 76 FR 37007 - Safety Zone; Stockton Ports Baseball Club Fourth of July Fireworks Display, Stockton, CA

    Science.gov (United States)

    2011-06-24

    ... SECURITY Coast Guard 33 CFR Part 165 RIN 1625-AA00 Safety Zone; Stockton Ports Baseball Club Fourth of July... Stockton Ports Baseball Club will sponsor the Stockton Ports Baseball Club Fourth of July Fireworks Display... read as follows: Sec. 165.T11-422 Safety Zone; Stockton Ports Baseball Club Fourth of July...

  8. A Search for the Fourth SM Family Fermions and E_6 Quarks at $\\mu ^{+}\\mu ^{-}$ Colliders

    CERN Document Server

    Çiftçi, A K; Sultansoy, S F

    2002-01-01

    The potential of $\\mu ^{+}\\mu ^{-}$ colliders to investigate the fourth SM family fermions predicted by flavour democracy has been analyzed. It is shown that muon colliders are advantageous for both pair production of fourth family fermions and resonance production of fourth family quarkonia. Also isosinglet quarks production at $\\mu ^{+}\\mu ^{-}$ colliders has been investigated.

  9. Development of a methylation marker set for forensic age estimation using analysis of public methylation data and the Agena Bioscience EpiTYPER system.

    Science.gov (United States)

    Freire-Aradas, A; Phillips, C; Mosquera-Miguel, A; Girón-Santamaría, L; Gómez-Tato, A; Casares de Cal, M; Álvarez-Dios, J; Ansede-Bermejo, J; Torres-Español, M; Schneider, P M; Pośpiech, E; Branicki, W; Carracedo, Á; Lareu, M V

    2016-09-01

    Individual age estimation has the potential to provide key information that could enhance and extend DNA intelligence tools. Following predictive tests for externally visible characteristics developed in recent years, prediction of age could guide police investigations and improve the assessment of age-related phenotype expression patterns such as hair colour changes and early onset of male pattern baldness. DNA methylation at CpG positions has emerged as the most promising DNA tests to ascertain the individual age of the donor of a biological contact trace. Although different methodologies are available to detect DNA methylation, EpiTYPER technology (Agena Bioscience, formerly Sequenom) provides useful characteristics that can be applied as a discovery tool in localized regions of the genome. In our study, a total of twenty-two candidate genomic regions, selected from the assessment of publically available data from the Illumina HumanMethylation 450 BeadChip, had a total of 177 CpG sites with informative methylation patterns that were subsequently investigated in detail. From the methylation analyses made, a novel age prediction model based on a multivariate quantile regression analysis was built using the seven highest age-correlated loci of ELOVL2, ASPA, PDE4C, FHL2, CCDC102B, C1orf132 and chr16:85395429. The detected methylation levels in these loci provide a median absolute age prediction error of ±3.07years and a percentage of prediction error relative to the age of 6.3%. We report the predictive performance of the developed model using cross validation of a carefully age-graded training set of 725 European individuals and a test set of 52 monozygotic twin pairs. The multivariate quantile regression age predictor, using the CpG sites selected in this study, has been placed in the open-access Snipper forensic classification website. PMID:27337627

  10. H.R. 1174: A Bill to provide additional flexibility for the Department of Energy's program for the disposal of spent nuclear fuel and high level radioactive waste, and for other purposes. Introduced in the House of Representatives, One Hundred Fourth Congress, First Session, March 8, 1995

    International Nuclear Information System (INIS)

    The report H.R. 1174 is a bill to provide additional flexibility for the Department of Energy's (DOE) program for the disposal of spent nuclear fuel and high level radioactive waste. The proposed legislative text is included to amend the Nuclear Waste Policy Act of 1982

  11. Fourth-order gravity as the inflationary model revisited

    CERN Document Server

    Kaneda, S; Watanabe, N

    2010-01-01

    We revisit the simplest (fourth-order or quadratically generated) modified gravity model in four space-time dimensions. It is equivalent to the certain quintessence model via a Legendre-Weyl transform. By using the quintessence scalar potential we compute the (CMB) observables of inflation associated with curvature perturbations (namely, the scalar and tensor spectral indices, and the tensor-to-scalar ratio) by using the most recent WMAP5 experimental bound. Our results include the next-to-leading terms with respect to the inverse number of e-foldings.

  12. Fourth Generation Nuclear Weapons: Military effectiveness and collateral effects

    CERN Document Server

    Gsponer, A

    2005-01-01

    The paper begins with a general introduction and update to Fourth Generation Nuclear Weapons (FGNW), and then addresses some particularly important military aspects on which there has been only limited public discussion so far. These aspects concern the unique military characteristics of FGNWs which make them radically different from both nuclear weapons based on previous-generation nuclear-explosives and from conventional weapons based on chemical-explosives: yields in the 1 to 100 tons range, greatly enhanced coupling to targets, possibility to drive powerful shaped charged jets and forged fragments, enhanced prompt radiation effects, reduced collateral damage and residual radioactivity, etc.

  13. [Fourth section of: Panoramic view of] Hong Kong [circa 1900

    OpenAIRE

    Unknown

    2003-01-01

    Fourth section of a panoramic view, composed of four joined prints, looking down from the Peak onto the city of Victoria, the harbour and the Kowloon Peninsula. The first section of the panorama is largely taken up by a spur of the peak. In the bottom right of the second section are the Public Gardens, with the clock tower at the junction of Queen's Road and Peddar Street above them. In the centre of this section is the gothic Roman Catholic Cathedral, with the Victoria Goal beyond. The ce...

  14. Nanopore-based Fourth-generation DNA Sequencing Technology

    Institute of Scientific and Technical Information of China (English)

    Yanxiao Feng; Yuechuan Zhang; Cuifeng Ying; Deqiang Wang; Chunlei Du

    2015-01-01

    Nanopore-based sequencers, as the fourth-generation DNA sequencing technology, have the potential to quickly and reliably sequence the entire human genome for less than $1000, and possibly for even less than$100. The single-molecule techniques used by this technology allow us to further study the interaction between DNA and protein, as well as between protein and protein. Nanopore analysis opens a new door to molecular biology investigation at the single-molecule scale. In this article, we have reviewed academic achievements in nanopore technology from the past as well as the latest advances, including both biological and solid-state nanopores, and discussed their recent and potential applications.

  15. Constraints on Majorana Dark Matter from a Fourth Lepton Family

    CERN Document Server

    Hapola, Tuomas; Kouvaris, Chris; Panci, Paolo; Virkajarvi, Jussi

    2013-01-01

    We study the possibility of dark matter in the form of heavy neutrinos from a fourth lepton family with helicity suppressed couplings such that dark matter is produced thermally via annihilations in the early Universe. We present all possible constraints for this scenario coming from LHC and collider physics, underground direct detectors, neutrino telescopes, and indirect astrophysical searches. Although we embed the WIMP candidate within a model of composite dynamics, the majority of our results are model independent and applicable to all models where heavy neutrinos with suppressed couplings account for the dark matter abundance.

  16. Fourth generation: Effects of heavy right-handed neutrinos

    International Nuclear Information System (INIS)

    In the presence of a sequential fourth generation the additional neutrino states must be sufficiently heavy to comply with the measured invisible width of the Z-boson. This can be achieved in the see-saw framework if only three out of the heavy right-handed neutrinos have masses far above the electroweak scale. An effective theory is constructed in which the three heaviest neutrinos are integrated out. The light left-handed neutrinos become Majorana fermions, new FCNC arise and new interactions of the pseudo-Goldstone bosons occur. We discuss rare flavor-violating lepton decays.

  17. Applied Meteorology Unit (AMU) Quarterly Report - Fourth Quarter FY-09

    Science.gov (United States)

    Bauman, William; Crawford, Winifred; Barrett, Joe; Watson, Leela; Wheeler, Mark

    2009-01-01

    This report summarizes the Applied Meteorology Unit (AMU) activities for the fourth quarter of Fiscal Year 2009 (July - September 2009). Tasks reports include: (1) Peak Wind Tool for User Launch Commit Criteria (LCC), (2) Objective Lightning Probability Tool. Phase III, (3) Peak Wind Tool for General Forecasting. Phase II, (4) Update and Maintain Advanced Regional Prediction System (ARPS) Data Analysis System (ADAS), (5) Verify MesoNAM Performance (6) develop a Graphical User Interface to update selected parameters for the Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLlT)

  18. Stable patterns for fourth-order parabolic equations

    OpenAIRE

    van den Berg, J. B.; Vandervorst, R. C.

    2002-01-01

    We consider fourth-order parabolic equations of gradient type. For the sake of simplicity, the analysis is carried out for the specific equation $u\\sb t=-\\gamma\\ u\\sb {xxxx}+\\beta u\\sb {xx}-F\\sp \\prime(u)$ with $(t,x)\\in (0,\\infty)\\times(0, L)$ and $\\gamma,\\beta>0$ and where $F(u)$ is a bistable potential. We study its stable equilibria as a function of the ratio $\\gamma/beta\\sp 2$. As the ratio $\\gamma/beta\\sp 2$ crosses an explicit threshold value, the number of stable ...

  19. The virtual return of "fourth" and "fifth" generation migrants

    Directory of Open Access Journals (Sweden)

    Gredelj Stjepan

    2006-01-01

    Full Text Available The main aims of the project are twofold: the first one is to get insight into scope, structure, everyday life, opinions and plans of our people who live abroad as the fourth and fifth generations of emigrants, specially those who left the country during 90s. The second is checking and recording their preparedness for "return" to mother-country through complex set of activities and arrangements: return (repatriation, capital investments, know-how and skills investments, preservation and strengthening cultural identity of our people abroad and development their links with the ethnic/cultural background and inheritance.

  20. Symmetries, Large Leptonic Mixing and a Fourth Generation

    CERN Document Server

    Silva-Marcos, Joaquim I

    2002-01-01

    We show that large leptonic mixing occurs most naturally in the framework of the Sandard Model just by adding a fourth generation. One can then construct a small $Z_4$ discrete symmetry, instead of the large $S_{4L}\\times S_{4R}$, which requires that the neutrino as well as the charged lepton mass matrices be proportional to a $4\\times 4$ democratic mass matrix, where all entries are equal to unity. Without considering the see-saw mechanism, or other more elaborate extensions of the SM, and contrary to the case with only 3 generations, large leptonic mixing is obtained when the symmetry is broken.

  1. Scale-invariant scalar spectrum from the nonminimal derivative coupling with fourth-order term

    CERN Document Server

    Myung, Yun Soo

    2015-01-01

    An exactly scale-invariant spectrum of scalar perturbation generated during de Sitter spacetime is found from the gravity model of the nonminimal derivative coupling with fourth-order term. The nonminimal derivative coupling term generates a healthy (ghost-free) fourth-order derivative term, while the fourth-order term provides an unhealthy (ghost) fourth-order derivative term. The Harrison-Zel'dovich spectrum obtained from Fourier transforming the fourth-order propagator in de Sitter space is recovered by computing the power spectrum in its momentum space directly. It shows that this model provides a truly scale-invariant spectrum, in addition to the Lee-Wick scalar theory.

  2. Sanitary Landfill Groundwater Monitoring Report. Fourth Quarter 1997 and 1997 Summary

    Energy Technology Data Exchange (ETDEWEB)

    Chase, J. [Westinghouse Savannah River Company, AIKEN, SC (United States)

    1998-02-01

    A maximum of forty-eight wells of the LFW series monitor groundwater quality in the Steed Pond Aquifer (Water Table) beneath the Sanitary Landfill at the Savannah River Site (SRS). These wells are sampled quarterly to comply with the South Carolina Department of Health and Environmental Control Domestic Water Permit DWP-087A and as part of the SRS Groundwater Monitoring Program. Chloroethene (vinyl chloride) and trichloroethylene were the most widespread constituents exceeding standards during 1997. Lead (total recoverable), 1,4-dichlorobenzene, mercury, benzene, dichloromethane (methylene chloride), a common laboratory contaminant, tetrachloroethylene, 1,2-dichloroethane, gross alpha, tritium, and 1.2-dichloropropane also exceeded standards in one or more wells. The groundwater flow direction in the Steed Pond Aquifer (Water Table) beneath the Sanitary Landfill was to the southeast (universal transverse Mercator coordinates). The flow rate in this unit was approximately 139 ft/year during first quarter 1997 and 132 ft/year during fourth quarter.

  3. Sanitary landfill groundwater monitoring report. Fourth quarter 1994 and 1994 summary

    International Nuclear Information System (INIS)

    Eighty-nine wells of the LFW series monitor groundwater quality in the Steed Pond Aquifer (Water Table) beneath the Sanitary Landfill at the Savannah River Site (SRS). These wells are sampled quarterly to comply with the South Carolina Department of Health and Environmental Control Domestic Waste Permit DWP-087A and as part of the SRS Groundwater Monitoring Program. Dichloromethane, a common laboratory contaminant, and trichloroethylene were the most widespread constituents exceeding standards during 1994. Benzene, chloroethene (vinyl chloride), 1,2-dichloroethane, 1,1-dichloroethylene, 1,2-dichloropropane, gross alpha, mercury, nonvolatile beta, tetrachloroethylene, and tritium also exceeded standards in one or more wells. The groundwater flow direction in the Steed Pond Aquifer (Water Table) beneath the Sanitary Landfill was to the southeast (universal transverse Mercator coordinates). The flow rate in this unit was approximately 140 ft/year during first and fourth quarters 1994

  4. Union of the Comoros; 2006 Article IV Consultation and Fourth Staff Review and Extension of the Staff-Monitored Program: Staff Report; Staff Supplement; Public Information Notice on the Executive Board Discussion; and Statement by the Executive Director for the Union of the Comoros

    OpenAIRE

    International Monetary Fund

    2006-01-01

    Comoros faces significant economic and political challenges. The fiscal priorities are to restore revenues and curtail spending so that domestic arrears can be reduced and the program brought back on track. Clearing external arrears is a key hurdle to debt sustainability. Improvements to the investment climate are critical for attracting foreign direct investment. Financial sector development is needed to support private sector growth and economic diversification. If implemented successfully,...

  5. Short-Term Energy Outlook: Quarterly projections. Fourth quarter 1993

    Energy Technology Data Exchange (ETDEWEB)

    1993-11-05

    The Energy Information Administration (EIA) prepares quarterly, short-term energy supply, demand, and price projections for publication in February, May, August, and November in the Short-Term Energy Outlook (Outlook). An annual supplement analyzes the performance of previous forecasts, compares recent cases with those of other forecasting services, and discusses current topics related to the short-term energy markets. (See Short-Term Energy Outlook Annual Supplement, DOE/EIA-0202.) The forecast period for this issue of the Outlook extends from the fourth quarter of 1993 through the fourth quarter of 1994. Values for the third quarter of 1993, however, are preliminary EIA estimates (for example, some monthly values for petroleum supply and disposition are derived in part from weekly data reported in the Weekly Petroleum Status Report) or are calculated from model simulations using the latest exogenous information available (for example, electricity sales and generation are simulated using actual weather data). The historical energy data are EIA data published in the Monthly Energy Review, Petroleum Supply Monthly, and other EIA publications.

  6. Pseudospectral collocation methods for fourth order differential equations

    Science.gov (United States)

    Malek, Alaeddin; Phillips, Timothy N.

    1994-01-01

    Collocation schemes are presented for solving linear fourth order differential equations in one and two dimensions. The variational formulation of the model fourth order problem is discretized by approximating the integrals by a Gaussian quadrature rule generalized to include the values of the derivative of the integrand at the boundary points. Collocation schemes are derived which are equivalent to this discrete variational problem. An efficient preconditioner based on a low-order finite difference approximation to the same differential operator is presented. The corresponding multidomain problem is also considered and interface conditions are derived. Pseudospectral approximations which are C1 continuous at the interfaces are used in each subdomain to approximate the solution. The approximations are also shown to be C3 continuous at the interfaces asymptotically. A complete analysis of the collocation scheme for the multidomain problem is provided. The extension of the method to the biharmonic equation in two dimensions is discussed and results are presented for a problem defined in a nonrectangular domain.

  7. Saving the fourth generation Higgs with radion mixing

    CERN Document Server

    Frank, Mariana; Toharia, Manuel

    2012-01-01

    We study Higgs-radion mixing in a warped extra dimensional model with Standard Model fields in the bulk, and we include a fourth generation of chiral fermions. The main problem with the fourth generation is that, in the absence of Higgs-radion mixing, it produces a large enhancement in the Higgs production cross-section, now severely constrained by LHC data. We analyze the production and decay rates of the two physical states emerging from the mixing and confront them with present LHC data. We show that the current signals observed can be compatible with the presence of one, or both, of these Higgs-radion mixed states (the $\\phi$ and the $h$), although with a severely restricted parameter space. In particular, the radion interaction scale must be quite low, Lambda_\\phi ~ 1-1.3 TeV. If m_\\phi ~ 125 GeV, the $h$ state must be heavier (m_h>320 GeV). If m_h ~ 125 GeV, the $\\phi$ state must be quite light or close in mass (m_\\phi ~ 120 GeV). We also present the modified decay branching ratios of the mixed Higgs-ra...

  8. Towards a fourth spatial dimension of brain activity.

    Science.gov (United States)

    Tozzi, Arturo; Peters, James F

    2016-06-01

    Current advances in neurosciences deal with the functional architecture of the central nervous system, paving the way for general theories that improve our understanding of brain activity. From topology, a strong concept comes into play in understanding brain functions, namely, the 4D space of a "hypersphere's torus", undetectable by observers living in a 3D world. The torus may be compared with a video game with biplanes in aerial combat: when a biplane flies off one edge of gaming display, it does not crash but rather it comes back from the opposite edge of the screen. Our thoughts exhibit similar behaviour, i.e. the unique ability to connect past, present and future events in a single, coherent picture as if we were allowed to watch the three screens of past-present-future "glued" together in a mental kaleidoscope. Here we hypothesize that brain functions are embedded in a imperceptible fourth spatial dimension and propose a method to empirically assess its presence. Neuroimaging fMRI series can be evaluated, looking for the topological hallmark of the presence of a fourth dimension. Indeed, there is a typical feature which reveal the existence of a functional hypersphere: the simultaneous activation of areas opposite each other on the 3D cortical surface. Our suggestion-substantiated by recent findings-that brain activity takes place on a closed, donut-like trajectory helps to solve long-standing mysteries concerning our psychological activities, such as mind-wandering, memory retrieval, consciousness and dreaming state. PMID:27275375

  9. National report card on energy efficiency: Fourth annual report card on government activities

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    2003-04-01

    The objective of this fourth annual report card produced by the Canadian Energy Efficiency Alliance is, as before, to identify government commitments to energy efficiency and to raise the awareness and importance of providing the necessary mechanisms that support energy efficiency in the market place. For the first time this year, the report card includes an assessment of the role of crown utilities and local distribution utilities in the promotion of energy efficiency. Their results were combined with those of the provincial government to develop a aggregate grade for each province. The ratings are based on ten categories, encompassing building codes, energy efficiency legislation, regulatory infrastructure, programs and public outreach, in-house programs, innovative new programs, performance and evaluation, climate change and Voluntary Change Registry reporting, and access to government information. Performance is rated by way of a narrative summary and a letter grade which represents the aggregate of performance in all ten categories. Best performance was recorded by Quebec, followed by the Yukon, the Federal Government, the Northwest Territories, British Columbia, Nova Scotia, New Brunswick, Manitoba, Alberta, Ontario, Prince Edward Island, Newfoundland and Labrador, and Saskatchewan, in that order.

  10. The interfacial bioscience grand challenge.

    Energy Technology Data Exchange (ETDEWEB)

    Lane, Pamela; Stevens, Mark Jackson; Jacobsen, Richard B.; Hong, Joohee; Ayson, Marites J.; Crozier, Paul Stewart; Wood, Nichole L.; Schoeniger, Joseph S.; Kruppa, Gary Hermann; Sale, Kenneth L.; Young, Malin M.; Faulon, Jean-Loup Michel; Burns, Alan Richard; Evans, Kervin O.; Novak, Petr

    2004-03-01

    This report is broken down into the following 3 sections: (1) Chemical Cross-linking and Mass Spectrometry Applied to Determination of Protein Structure and Dynamics; (2) Computational Modeling of Membrane Protein Structure and Dynamics; and (3) Studies of Toxin-Membrane Interactions using Single Molecule Biophysical Methods.

  11. PRIST: a fourth-generation tool for medical information systems.

    Science.gov (United States)

    Cristiani, P; Larizza, C

    1990-04-01

    PRIST is a fourth-generation software package purposely oriented to development and management of medical applications, running under MS/DOS IBM compatible personal computers. The tool has been developed on the top of DBIII Plus language utilizing the Clipper Compiler networking features for the integration in a LAN environment. Several routines written in C and BASIC Microsoft languages integrated this DBMS-kernel system providing I/O, graphics, statistics, retrieval utilities. To increase the interactivity of the system both menu-driven and windowing interfaces have been implemented. PRIST has been utilized to develop a wide variety of small medical applications ranging from research laboratories to intensive care units. The great majority of reactions from the use of these applications were positive, confirming that PRIST is able to assist in practice management and patient care as well as research purposes. PMID:2345045

  12. Results of the fourth IAEA standard problem test

    International Nuclear Information System (INIS)

    The International Atomic Energy Agency organized and conducted its fourth Standard Problem Exercise in 1993 to 1994. The test for the Exercise was provided by Hungary, the KFKI Atomic Energy Research Institute. The experimental basis was the PMK-2, an integral-type model of the Paks Nuclear Power Plant of VVER-440/213-type. Numerous countries/organizations participated in the computer code validation. Exercise from both the countries having VVER-type reactors and western organizations. The Exercise showed the applicability of sophisticated thermohydraulics system codes to VVER reactors, with some weaknesses in the predictions. This paper gives an insight into the SPE-4 test, especially from the point of view of VVER-specific phenomena by evaluating the key parameters of the test and comparing it with examples of computer code validation. The paper is a contribution to the Hungarian-Slovenian co-operation on the application of FFT method to PMK-2 based code validation.(author)

  13. A novel circuit architecture for fourth subharmonie mixers

    Institute of Scientific and Technical Information of China (English)

    Yao Changfei; Xu Conghai; Zhou Ming; Luo Yunsheng

    2012-01-01

    A circuit topology for high-order subharmonic (SH) mixers is described.By phase cancellation of idle frequency components,the SH mixer circuit can eliminate the complicated design procedure of idle frequency circuits.Similarly,the SH mixer circuit can achieve a high port isolation by phase cancellation of the leakage LO,RF and idle frequency signals.Based on the high-order SH mixer architecture,a new Ka-band fourth SH mixer is analyzed and designed,it shows the lowest measured conversion loss of 8.3 dB at 38.4 GHz and the loss is lower than 10.3 dB in 34-39 GHz.Measured LO-IF,RF-LO,RF-IF port isolation are better than 30.7 dB,22.9dB and 46.5 dB,respectively.

  14. The fourth revolution how the infosphere is reshaping human reality

    CERN Document Server

    Floridi, Luciano

    2014-01-01

    Who are we, and how do we relate to each other? Luciano Floridi, one of the leading figures in contemporary philosophy, argues that the explosive developments in Information and Communication Technologies (ICTs) is changing the answer to these fundamental human questions. As the boundaries between life online and offline break down, and we become seamlessly connected to each other and surrounded by smart, responsive objects, we are all becoming integrated into an ". Personas we adopt in social media, for example, feed into our 'real' lives so that we begin to live, as Floridi puts in, ". Following those led by Copernicus, Darwin, and Freud, this metaphysical shift represents nothing less than a fourth revolution. " defines more and more of our daily activity - the way we shop, work, learn, care for our health, entertain ourselves, conduct our relationships; the way we interact with the worlds of law, finance, and politics; even the way we conduct war. In every department of life, ICTs have become environmenta...

  15. Wormhole geometries in fourth-order conformal Weyl gravity

    Science.gov (United States)

    Varieschi, Gabriele U.; Ault, Kellie L.

    2016-04-01

    We present an analysis of the classic wormhole geometries based on conformal Weyl gravity, rather than standard general relativity. The main characteristics of the resulting traversable wormholes remains the same as in the seminal study by Morris and Thorne, namely, that effective super-luminal motion is a viable consequence of the metric. Improving on previous work on the subject, we show that for particular choices of the shape and redshift functions the wormhole metric in the context of conformal gravity does not violate the main energy conditions at or near the wormhole throat. Some exotic matter might still be needed at the junction between our solutions and flat spacetime, but we demonstrate that the averaged null energy condition (as evaluated along radial null geodesics) is satisfied for a particular set of wormhole geometries. Therefore, if fourth-order conformal Weyl gravity is a correct extension of general relativity, traversable wormholes might become a realistic solution for interstellar travel.

  16. Wormhole geometries in fourth-order conformal Weyl gravity

    CERN Document Server

    Varieschi, Gabriele U

    2015-01-01

    We present an analysis of the classic wormhole geometries based on conformal Weyl gravity, rather than standard general relativity. The main characteristics of the resulting traversable wormholes remain the same as in the seminal study by Morris and Thorne, namely, that effective super-luminal motion is a viable consequence of the metric. Improving on previous work on the subject, we show that for particular choices of the shape and redshift functions, the wormhole metric in the context of conformal gravity does not violate the main energy conditions, as was the case of the original solutions. In particular, the resulting geometry does not require the use of exotic matter at or near the wormhole throat. Therefore, if fourth-order conformal Weyl gravity is a correct extension of general relativity, traversable wormholes might become a realistic solution for interstellar travel.

  17. Fourth International Conference on Complex Systems Design & Management

    CERN Document Server

    Boulanger, Frédéric; Krob, Daniel; Marchal, Clotilde

    2014-01-01

    This book contains all refereed papers that were accepted to the fourth edition of the « Complex Systems Design & Management » (CSD&M 2013) international conference which took place in Paris (France) from December 4-6, 2013. These proceedings cover the most recent trends in the emerging field of complex systems sciences & practices from an industrial and academic perspective, including the main industrial domains (transport, defense & security, electronics, energy & environment, e-services), scientific & technical topics (systems fundamentals, systems architecture & engineering, systems metrics & quality, systemic tools) and system types (transportation systems, embedded systems, software & information systems, systems of systems, artificial ecosystems). The CSD&M 2013 conference is organized under the guidance of the CESAMES non-profit organization

  18. The RAdial Velocity Experiment (RAVE): Fourth data release

    CERN Document Server

    Kordopatis, G; Steinmetz, M; Boeche, C; Seabroke, G M; Siebert, A; Zwitter, T; Binney, J; de Laverny, P; Recio-Blanco, A; Williams, M E K; Piffl, T; Enke, H; Roeser, S; Bijaoui, A; Wyse, R F G; Freeman, K; Munari, U; Carillo, I; Anguiano, B; Burton, D; Campbell, R; Cass, C J P; Fiegert, K; Hartley, M; Parker, Q A; Reid, W; Ritter, A; Russell, K S; Stupart, M; Watson, F G; Bienayme, O; Bland-Hawthorn, J; Gerhard, O; Gibson, B K; Grebel, E K; Helmi, A; Navarro, J F; Conrad, C; Famaey, B; Faure, C; Just, A; Kos, J; Matijevic, G; McMillan, P J; Minchev, I; Scholz, R; Sharma, S; Siviero, A; de Boer, E Wylie; Zerjal, M

    2013-01-01

    We present the stellar atmospheric parameters (effective temperature, surface gravity, overall metallicity), radial velocities, individual abundances and distances determined for 425 561 stars, which constitute the fourth public data release of the RAdial Velocity Experiment (RAVE). The stellar atmospheric parameters are computed using a new pipeline, based on the algorithms of MATISSE and DEGAS. The spectral degeneracies and the 2MASS photometric information are now better taken into consideration, improving the parameter determination compared to the previous RAVE data releases. The individual abundances for six elements (magnesium, aluminum, silicon, titanium, iron and nickel) are also given, based on a special-purpose pipeline which is also improved compared to that available for the RAVE DR3 and Chemical DR1 data releases. Together with photometric information and proper motions, these data can be retrieved from the RAVE collaboration website and the Vizier database.

  19. [Postdonation information: the French fourth hemovigilance sub-process].

    Science.gov (United States)

    Py, J-Y; Sandid, I; Jbilou, S; Dupuis, M; Adda, R; Narbey, D; Djoudi, R

    2014-11-01

    Postdonation information is the knowledge of information about the donor or his donation, occurring after it, which challenges quality or safety of the blood products stemming from this or other donations. Classical hemovigilance sub-processes concerning donors or recipients adverse events do not cover this topic. France is just about to make it official as a fourth sub-process. Less formal management of postdonation information is already set up for more than ten years. French data of the year 2013 are presented, including the regional notification level and the national reporting one. A significant level of heterogeneity is observed as for other hemovigilance sub-processes. It is mainly due to subjective rather than objective differences in risk appreciation. A real consensual work is expected about it in the future. PMID:25282491

  20. The Fourth Gravity Test and Quintessence Matter Field

    CERN Document Server

    Liu, Molin; Yu, Fei; Gui, Yuanxing

    2010-01-01

    After the previous work on gravitational frequency shift, light deflection (arXiv:1003.5296) and perihelion advance (arXiv:0812.2332), we calculate carefully the fourth gravity test, i.e. radar echo delay in a central gravity field surrounded by static free quintessence matter, in this paper. Through the Lagrangian method, we find the influence of the quintessence matter on the time delay of null particle is presence by means of an additional integral term. When the quintessence field vanishes, it reduces to the usual Schwarzschild case naturally. Meanwhile, we also use the data of the Viking lander from the Mars and Cassini spacecraft to Saturn to constrain the quintessence field. For the Viking case, the field parameter $\\alpha$ is under the order of $10^{-9}$. However, $\\alpha$ is under $10^{-18}$ for the Cassini case.

  1. Development of a fourth generation predictive capability maturity model.

    Energy Technology Data Exchange (ETDEWEB)

    Hills, Richard Guy; Witkowski, Walter R.; Urbina, Angel; Rider, William J.; Trucano, Timothy Guy

    2013-09-01

    The Predictive Capability Maturity Model (PCMM) is an expert elicitation tool designed to characterize and communicate completeness of the approaches used for computational model definition, verification, validation, and uncertainty quantification associated for an intended application. The primary application of this tool at Sandia National Laboratories (SNL) has been for physics-based computational simulations in support of nuclear weapons applications. The two main goals of a PCMM evaluation are 1) the communication of computational simulation capability, accurately and transparently, and 2) the development of input for effective planning. As a result of the increasing importance of computational simulation to SNL's mission, the PCMM has evolved through multiple generations with the goal to provide more clarity, rigor, and completeness in its application. This report describes the approach used to develop the fourth generation of the PCMM.

  2. CAS CERN Accelerator School: Fourth general accelerator physics course

    International Nuclear Information System (INIS)

    The fourth CERN Accelerator School (CAS) basic course on General Accelerator Physics was given at KFA, Juelich, from 17 to 28 September 1990. Its syllabus was based on the previous similar courses held at Gif-sur-Yvette in 1984, Aarhus 1986, and Salamanca 1988, and whose proceedings were published as CERN Reports 85-19, 87-10, and 89-05, respectively. However, certain topics were treated in a different way, improved or extended, while new subjects were introduced. All of these appear in the present proceedings, which include lectures or seminars on the history and applications of accelerators, phase space and emittance, chromaticity, beam-beam effects, synchrotron radiation, radiation damping, tune measurement, transition, electron cooling, the designs of superconducting magnets, ring lattices, conventional RF cavities and ring RF systems, and an introduction to cyclotrons. (orig.)

  3. The Radial Velocity Experiment (RAVE): Fourth Data Release

    Science.gov (United States)

    Kordopatis, Georges; RAVE Collaboration

    2014-01-01

    We present the stellar atmospheric parameters (effective temperature, surface gravity, overall metallicity), radial velocities, individual abundances and distances determined for 425 561 stars, which constitute the fourth public data release of the intermediate spectroscopic stellar survey of the RAdial Velocity Experiment (RAVE). Compared to previous RAVE data releases, the present one increases the available catalog size by an order of magnitude. The stellar atmospheric parameters are computed using a new pipeline, based on the algorithms of MATISSE and DEGAS. The spectral degeneracies and the 2MASS photometric information are now better taken into consideration, improving the parameter determination compared to the previous RAVE data releases. The individual abundances for six elements (magnesium, aluminum, silicon, titanium, iron and nickel) are also given, based on a special-purpose pipeline which is also improved compared to that available for the previous data releases. Together with photometric information and proper motions, these data can be retrieved from the RAVE collaboration website and the Vizier database.

  4. Fourth ICT Innovations conference ”Secure and Intelligent Systems”

    CERN Document Server

    Gusev, Marjan; ICT Innovations 2012 : Secure and Intelligent Systems

    2013-01-01

    The present stage of the human civilization is the e-society, which is build over the achievements obtained by the development of the information and communication technologies. It affects everyone, from ordinary mobile phone users to designers of high quality industrial products, and every human activity, from taking medical care to improving the state governing. The science community working in computer sciences and informatics is therefore under constant challenge; it has to solve the new appeared theoretical problem as well as to find new practical solutions. \\\\ The fourth ICT Innovations Conference, held in September 2012 in Ohrid, Macedonia, was one of the several world-wide forums where academics, professionals and practitioners presented their last scientific results and development applications in the fields of high performance and parallel computing, bioinformatics, human computer interaction, security and cryptography, computer and mobile networks, neural networks, cloud computing, process verifica...

  5. Statement of incidents at nuclear installations fourth quarter 1985

    International Nuclear Information System (INIS)

    The three incidents which are reported for the fourth quarter of 1985 occurred at Transfynydd and Hinkley Point-B reactors (operated by CEGB) and there is a follow-up report on an earlier incident at Hunterston A reactor (operated by the South of Scotland Electricity Board). The Transfynydd incident concerned a fire in conventional plant and although the reactor was shut down as a precaution, the damage was limited to conventional plant and there was no radiation hazard. The two incidents at Hinkley Point-B concerned a boiler tube leak which allowed high pressure steam into the coolant gas circuit and a leakage of reactor coolant gas which caused the site emergency arrangements to be invoked but which caused no contamination outside the reactor building. The Hunterston-A report concerns the replacement of an active effluent discharge pipeline which had been found to have a leak. (UK)

  6. Dynamical Properties in a Fourth-Order Nonlinear Difference Equation

    Directory of Open Access Journals (Sweden)

    Xianyi Li

    2010-01-01

    Full Text Available The rule of trajectory structure for fourth-order nonlinear difference equation xn+1=(xan−2+xn−3/(xan−2xn−3+1, n=0,1,2,…, where a∈[0,1 and the initial values x−3,x−2,x−1,x0∈[0,∞, is described clearly out in this paper. Mainly, the lengths of positive and negative semicycles of its nontrivial solutions are found to occur periodically with prime period 15. The rule is 4+,3−,1+,2−,2+,1−,1+, 1− in a period. By utilizing this rule its positive equilibrium point is verified to be globally asymptotically stable.

  7. The Story of a Typical Atypical Graduate of the Physics Entrepreneurship Program at Case Western Reserve University

    Science.gov (United States)

    Luta, Adele

    2012-02-01

    An entrepreneurial perspective to life can lead to wearing a myriad of hats. Long gone is the stereotypical start-up role. Entrepreneurs now hold physics degrees and procure innovation when called upon. An alumni of the Physics Entrepreneurship Program, Adele Luta has spent the last 5 years at NASA developing an innovative approach to spacesuit sizing. Previously, she founded Eleda International consulting firm and is currently working with Adjuvat Biosciences, on a proprietary treatment pancreatic cancer.

  8. Quality Criteria Development within the Fourth Framework Research Programme

    International Nuclear Information System (INIS)

    The revised EC patient Directive 97/43/EURATOM introduces a number of new and extremely relevant requirements into the legal framework of radiation protection of persons who undergo medical exposure throughout Europe. Key elements of the most relevant changes involve a more objective assessment of radiological performance. In particular, the establishment of optimisation strategies involving clinical and patient dose audits, as well as quality assurance, will be required. There is no doubt that within this changing framework for radiation protection of the patient, advice and guidance regarding best practice at a European level will play a vital role in the achievement of consistent and harmonised practice. In order to establish a starting point for both the structure and content of advice and guidance on best practice for radiation protection of the patient, the Commission of European Communities has established European Guidelines on Quality Criteria for diagnostic radiographic images for adult and paediatric patients as well as computed tomography. These documents have already been made available throughout Europe in English and translation into a number of European Languages is under way for re-circulation within specific Member States. Whilst this process was continuing a Fourth Framework Research Programme has been under way in the period 1996-2000 to develop and evaluate further the robustness of the Quality Criteria for diagnostic radiographic images for adult patients. An overview is presented of the most relevant findings of the Fourth Framework Research Project with a strong emphasis on operational outcomes relevant to focused multipartner, multinational research programmes of a multidisciplinary nature. Detailed findings of the project will be presented elsewhere in the meeting and through future publications. (author)

  9. Solvability of a fourth order boundary value problem with periodic boundary conditions

    Directory of Open Access Journals (Sweden)

    Chaitan P. Gupta

    1988-01-01

    Full Text Available Fourth order boundary value problems arise in the study of the equilibrium of an elastaic beam under an external load. The author earlier investigated the existence and uniqueness of the solutions of the nonlinear analogues of fourth order boundary value problems that arise in the equilibrium of an elastic beam depending on how the ends of the beam are supported. This paper concerns the existence and uniqueness of solutions of the fourth order boundary value problems with periodic boundary conditions.

  10. Solvability of a fourth order boundary value problem with periodic boundary conditions

    OpenAIRE

    Chaitan P. Gupta

    1988-01-01

    Fourth order boundary value problems arise in the study of the equilibrium of an elastaic beam under an external load. The author earlier investigated the existence and uniqueness of the solutions of the nonlinear analogues of fourth order boundary value problems that arise in the equilibrium of an elastic beam depending on how the ends of the beam are supported. This paper concerns the existence and uniqueness of solutions of the fourth order boundary value problems with periodic boundary co...

  11. A rare case of retained fourth molar teeth in maxilla and mandible. Case report

    OpenAIRE

    Rahnama Mansur; Szyszkowska Anna; Pulawska Marta; Szczerba-Gwozdz Joanna

    2014-01-01

    The study presents a case of the rarely occurring totally retained fourth molar teeth simultaneously in maxilla and mandible. The appearance of supernumerary teeth is a relatively uncommon dental anomaly and it is rare for patients to have impacted fourth molars in two quadrant. The aim of this work is to describe the presence of unilateral (right) fourth molars in the maxilla and the mandible in a young female patient aged 24 years. Orthopantomogram revealed impacted lower third molars but a...

  12. Fourth-order convergence of a compact scheme for the one-dimensional biharmonic equation

    OpenAIRE

    Fishelov, D; Ben-Artzi, M; Croisille, J-P

    2012-01-01

    The convergence of a fourth-order compact scheme to the one-dimensional biharmonic problem is established in the case of general Dirichlet boundary conditions. The compact scheme invokes value of the unknown function as well as Pade approximations of its first-order derivative. Using the Pade approximation allows us to approximate the first-order derivative within fourth-order accuracy. However, although the truncation error of the discrete biharmonic scheme is of fourth-order at interior poi...

  13. A Search for the Fourth SM Family Quarks through Anomalous Decays

    CERN Document Server

    Sahin, M; Turkoz, S

    2010-01-01

    Existence of the fourth family follows from the basics of the Standard Model. Because of the high masses of the fourth family quarks, their anomalous decays could be dominant. This will drastically change the search strategy at hadron colliders. We show that the fourth SM family down quarks with masses up to 400-450 GeV can be observed (or excluded) via anomalous decays by Tevatron before the LHC.

  14. Fourth-quarter Economic Growth and Time-varying Expected Returns

    DEFF Research Database (Denmark)

    Møller, Stig V.; Rangvid, Jesper

    predict returns. Fourth-quarter economic growth rates contain considerably more information about expected returns than standard variables used in the literature, are robust to the choice of macro variable, and work in-sample, out-of-sample, and in subsamples. To help explain these results, we show that...... economic growth and growth in consumer confidence are correlated during the fourth quarter, but not during the other quarters: When economic growth is low during the fourth quarter, confidence in the economy is also low such that investors require higher future returns. We discuss rational and behavioral...... reasons why fourth-quarter economic growth, growth in consumer confidence, and expected returns are related....

  15. Vicarious calibration of the third and fourth Stokes parameters of Windsat measurements

    International Nuclear Information System (INIS)

    Microwave observations made at the third and fourth Stokes parameters can be used to determine the surface wind direction over oceans. However, due to their smaller amplitudes (less than 3 K at the third Stokes parameter and 1 K at the fourth Stokes parameter), the absolute calibration to these measurements becomes crucial. A new methodology is developed in this study to calibrate the Windsat third and fourth Stokes parameters through tropical rain forest measurements over the Amazon and central Africa. It is found that the Windsat fourth Stokes parameter at 18 GHz has biases of the order of 0.5 K, which could severely affect the wind vector retrievals

  16. The locality of the fourth root of staggered fermion determinant in the interacting case

    CERN Document Server

    Bernard, C; Gottlieb, S; Heller, U; Hetrick, J E; Levkova, L; Maresca, F; Renner, D; Sugar, R; Toussaint, D; Gottlieb, Steven

    2005-01-01

    The fourth root approximation in LQCD simulations with dynamical staggered fermions requires justification. We test its validity numerically in the interacting theory in a renormalization group framework.

  17. Challenges and opportunities for early-career Teaching-Focussed academics in the biosciences [v2; ref status: indexed, http://f1000r.es/5c2

    Directory of Open Access Journals (Sweden)

    Katharine Hubbard

    2015-04-01

    Full Text Available Twenty-seven percent of academics in UK Higher Education (HE are in Teaching-Focussed positions, making major contributions to undergraduate programmes in an era of high student expectations when it comes to teaching quality. However, institutional support for Teaching-Focussed academics is often limited, both in terms of peer networking and opportunities for career development. As four early-career stage Teaching-Focussed academics working in a variety of institutions, we explore what motivated our choices to make teaching our primary academic activity, and the challenges that we have faced in doing so. In addition to highlighting the need for universities to fully recognise the achievements of teaching staff, we discuss the role that the various biosciences learned societies have in supporting Teaching-Focussed academics. We identify that there is a need for the learned societies to come together and pool their expertise in this area. The fragmented nature of the Teaching-Focussed academic community means that clear sources of national support are needed in order to best enable the next generation of bioscience educators to reach their full potential.

  18. Efficacy of the Arts in a Transdisciplinary Learning Experience for Culturally Diverse Fourth Graders

    Directory of Open Access Journals (Sweden)

    Angela Maria LA PORTE

    2016-03-01

    Full Text Available The aim of this participant observation was to understand the efficacy of a modified International Baccalaureate Primary Years Program for fourth-graders at a public school with a large percentage of language and socioeconomically disadvantaged students. Data collection over a five-month period concentrated on teaching interactions including audio-recorded time samplings and observations of the art and regular classroom instruction, and interviews (formal and informal with students, teachers, and school principals in addition to photographs, classroom portfolios, and other artifacts. The analysis, coding, and triangulation of data aided in understanding the art specialist and classroom teachers’ roles and contributions to the Primary Years Program. A cooperative school environment paved the way for student self-confidence and motivation for learning through (1 opportunities for student choice and decision-making and (2 collaborative, inquiry-based, transdisciplinary, project-based learning. Regardless of demographics, transdiciplinary learning through the arts challenged and motivated students to think and make decisions in collaboration with others, using and valuing the expertise of peers. Regardless of student ethnicity or socioeconomic status, learners felt empowered and enthusiastic about attending school and gained knowledge through inquiry and project-based opportunities. This progressive ideology and practice has the potential to benefit diverse learners in 21st century education.

  19. Fourth Computational Aeroacoustics (CAA) Workshop on Benchmark Problems

    Science.gov (United States)

    Dahl, Milo D. (Editor)

    2004-01-01

    This publication contains the proceedings of the Fourth Computational Aeroacoustics (CAA) Workshop on Benchmark Problems. In this workshop, as in previous workshops, the problems were devised to gauge the technological advancement of computational techniques to calculate all aspects of sound generation and propagation in air directly from the fundamental governing equations. A variety of benchmark problems have been previously solved ranging from simple geometries with idealized acoustic conditions to test the accuracy and effectiveness of computational algorithms and numerical boundary conditions; to sound radiation from a duct; to gust interaction with a cascade of airfoils; to the sound generated by a separating, turbulent viscous flow. By solving these and similar problems, workshop participants have shown the technical progress from the basic challenges to accurate CAA calculations to the solution of CAA problems of increasing complexity and difficulty. The fourth CAA workshop emphasized the application of CAA methods to the solution of realistic problems. The workshop was held at the Ohio Aerospace Institute in Cleveland, Ohio, on October 20 to 22, 2003. At that time, workshop participants presented their solutions to problems in one or more of five categories. Their solutions are presented in this proceedings along with the comparisons of their solutions to the benchmark solutions or experimental data. The five categories for the benchmark problems were as follows: Category 1:Basic Methods. The numerical computation of sound is affected by, among other issues, the choice of grid used and by the boundary conditions. Category 2:Complex Geometry. The ability to compute the sound in the presence of complex geometric surfaces is important in practical applications of CAA. Category 3:Sound Generation by Interacting With a Gust. The practical application of CAA for computing noise generated by turbomachinery involves the modeling of the noise source mechanism as a

  20. EDITORIAL: The Fourth International Workshop on Microfactories (IWMF'04)

    Science.gov (United States)

    Chu, Jiaru; Maeda, Ryutaro

    2005-10-01

    This special section of Journal of Micromechanics and Microengineering is devoted to the fourth International Workshop on Microfactories. After the first three successful Workshops, which took place in Tsukuba, Japan in 1998, Fribourg, Switzerland in 2000 and Minneapolis, USA in 2002, the fourth (IWMF'04) was held in Shanghai, China on 15-17 October 2004. The concept of the `microfactory' and miniaturized production systems was first proposed by the Mechanical Engineering Laboratory in Japan who demonstrated the feasibility of downsizing energy-saving, distributed and eventually environmentally conscious manufacturing systems. There is incredible potential in reducing the physical scale of numerous processes related to the manufacture of many forms of future dense `mechatronic' products and in the manipulation of microscopic and nanoscopic objects and materials for the benefit of mankind. Small systems capable of these operations can be referred to as `microfactories'. A worldwide effort is currently underway to bring such microfactories to fruition. MEMS, MST and micromachines are regarded as synonyms, but they do not necessarily have the same meaning. In particular, differences can be found in their technological approaches. Roughly speaking, research and development in the USA is based primarily on surface or bulk silicon micromachining processes, and the ideal realization of MEMS seems to be the monolithic device. The European approach also focuses on integration between electronics and mechanics but, especially in connection with the development of `µTAS', it also demands the integration of non-mechanical components into the system. In Japan the approaches for MST are said to be rather less focused. Besides the above-mentioned `classical' microsystem technologies, down-scaling of conventional manufacturing methods, or non-silicon based device processing within this field, completely new technological methods are also considered as `microsystem technologies

  1. The AMTEX Partnership{trademark}. Fourth quarter report, September 1994

    Energy Technology Data Exchange (ETDEWEB)

    Lemon, D.K.; Quisenberry, R.K.

    1994-06-01

    The AMTEX Partnership{trademark} is a collaborative research and development program among the US Integrated Textile Industry, the Department of Energy (DOE), the DOE laboratories, other federal agencies and laboratories, and universities. The goal of AMTEX is to strengthen the competitiveness of this vital industry, thereby preserving and creating US jobs. The operational and program management of the AMTEX Partnership is provided by the Program Office. This report is produced by the Program Office on a quarterly basis and provides information on the progress, operations, and project management of the partnership.

  2. Bienestar: A Diabetes Risk-Factor Prevention Program.

    Science.gov (United States)

    Trevino, Robert P.; Pugh, Jacqueline A.; Hernandez, Arthur E.; Menchaca, Velma D.; Ramirez, Robert R.; Mendoza, Monica

    1998-01-01

    The Bienestar Health Program is a diabetes risk-factor prevention program targeting Mexican American fourth graders. Program goals are to decrease overweight and dietary fats. The program is based on social cognitive theory and uses culturally relevant material. Preliminary evaluation indicates the program significantly decreases dietary fat,…

  3. Robust Optimization of Fourth Party Logistics Network Design under Disruptions

    Directory of Open Access Journals (Sweden)

    Jia Li

    2015-01-01

    Full Text Available The Fourth Party Logistics (4PL network faces disruptions of various sorts under the dynamic and complex environment. In order to explore the robustness of the network, the 4PL network design with consideration of random disruptions is studied. The purpose of the research is to construct a 4PL network that can provide satisfactory service to customers at a lower cost when disruptions strike. Based on the definition of β-robustness, a robust optimization model of 4PL network design under disruptions is established. Based on the NP-hard characteristic of the problem, the artificial fish swarm algorithm (AFSA and the genetic algorithm (GA are developed. The effectiveness of the algorithms is tested and compared by simulation examples. By comparing the optimal solutions of the 4PL network for different robustness level, it is indicated that the robust optimization model can evade the market risks effectively and save the cost in the maximum limit when it is applied to 4PL network design.

  4. CERN announces the fourth annual Beamline for Schools competition

    CERN Multimedia

    BL4S team

    2016-01-01

    CERN is pleased to announce the fourth annual Beamline for Schools (BL4S) competition. Once again, in 2017, a fully equipped beamline will be made available at CERN for students. As in previous years, two teams will be invited to the Laboratory to execute the experiments they proposed in their applications. The 2017 competition is being made possible thanks to support from the Alcoa Foundation for the second consecutive year.   The competition is open to teams of high-school students aged 16 or older who, if they win, are invited (with two supervisors) to CERN to carry out their experiment. Teams must have at least five students but there is no upper limit to a team’s size (although just nine students per winning team will be invited to CERN). Teams may be composed of pupils from a single school, or from a number of schools working together. As science-loving mega-celebrity Will.I.Am told us: “If you’re interested in science, technology, engineering or ...

  5. Toward a fourth-generation X-ray source

    International Nuclear Information System (INIS)

    The field of synchrotron radiation research has grown rapidly over the last 25 years due to both the push of the accelerator and magnet technology that produces the x-ray beams and the pull of the extraordinary scientific research that is possible with them. Three successive generations of synchrotrons radiation facilities have resulted in beam brilliances 11 to 12 orders of magnitude greater than the standard laboratory x-ray tube. However, greater advances can be easily imagined given the fact that x-ray beams from present-day facilities do not exhibit the coherence or time structure so familiar with the optical laser. Theoretical work over the last ten years or so has pointed to the possibility of generating hard x-ray beams with laser-like characteristics. The concept is based on self-amplified spontaneous emission (SASE) in flee-electron lasers. A major facility of this type based upon a superconducting linac could produce a cost-effective facility that spans wave-lengths from the ultraviolet to the hard x-ray regime, simultaneously servicing large numbers experimenters from a wide range of disciplines. As with each past generation of synchrotrons facilities, immense new scientific opportunities would result from fourth-generation sources.

  6. Toward a fourth-generation x-ray source.

    Energy Technology Data Exchange (ETDEWEB)

    Monction, D. E.

    1999-05-19

    The field of synchrotron radiation research has grown rapidly over the last 25 years due to both the push of the accelerator and magnet technology that produces the x-ray beams and the pull of the extraordinary scientific research that is possible with them. Three successive generations of synchrotrons radiation facilities have resulted in beam brilliances 11 to 12 orders of magnitude greater than the standard laboratory x-ray tube. However, greater advances can be easily imagined given the fact that x-ray beams from present-day facilities do not exhibit the coherence or time structure so familiar with the optical laser. Theoretical work over the last ten years or so has pointed to the possibility of generating hard x-ray beams with laser-like characteristics. The concept is based on self-amplified spontaneous emission (SASE) in flee-electron lasers. A major facility of this type based upon a superconducting linac could produce a cost-effective facility that spans wave-lengths from the ultraviolet to the hard x-ray regime, simultaneously servicing large numbers experimenters from a wide range of disciplines. As with each past generation of synchrotrons facilities, immense new scientific opportunities would result from fourth-generation sources.

  7. Organometallic rotaxane dendrimers with fourth-generation mechanically interlocked branches

    Science.gov (United States)

    Wang, Wei; Chen, Li-Jun; Wang, Xu-Qing; Sun, Bin; Li, Xiaopeng; Zhang, Yanyan; Shi, Jiameng; Yu, Yihua; Zhang, Li; Liu, Minghua; Yang, Hai-Bo

    2015-01-01

    Mechanically interlocked molecules, such as catenanes, rotaxanes, and knots, have applications in information storage, switching devices, and chemical catalysis. Rotaxanes are dumbbell-shaped molecules that are threaded through a large ring, and the relative motion of the two components along each other can respond to external stimuli. Multiple rotaxane units can amplify responsiveness, and repetitively branched molecules—dendrimers—can serve as vehicles for assembly of many rotaxanes on single, monodisperse compounds. Here, we report the synthesis of higher-generation rotaxane dendrimers by a divergent approach. Linkages were introduced as spacer elements to reduce crowding and to facilitate rotaxane motion, even at the congested periphery of the compounds up to the fourth generation. The structures were characterized by 1D multinuclear (1H, 13C, and 31P) and 2D NMR spectroscopy, MALDI-TOF-MS, gel permeation chromatography (GPC), and microscopy-based methods including atomic force microscopy (AFM) and transmission electron microscopy (TEM). AFM and TEM studies of rotaxane dendrimers vs. model dendrimers show that the rotaxane units enhance the rigidity and reduce the tendency of these assemblies to collapse by self-folding. Surface functionalization of the dendrimers with ferrocenes as termini produced electrochemically active assemblies. The preparation of dendrimers with a well-defined topological structure, enhanced rigidity, and diverse functional groups opens previously unidentified avenues for the application of these materials in molecular electronics and materials science. PMID:25902491

  8. The Fourth US Naval Observatory CCD Astrograph Catalog (UCAC4)

    CERN Document Server

    Zacharias, Norbert; Girard, Terry; Henden, Arne; Bartlett, Jennifer; Monet, Dave; Zacharias, Marion

    2012-01-01

    The fourth United States Naval Observatory (USNO) CCD Astrograph Catalog, UCAC4 was released in August 2012 (double-sided DVD and CDS data center Vizier catalog I/322). It is the final release in this series and contains over 113 million objects; over 105 million of them with proper motions. UCAC4 is an updated version of UCAC3 with about the same number of stars also covering all-sky. Bugs were fixed, Schmidt plate survey data were avoided, and precise 5-band photometry were added. Astrograph observations have been supplemented for bright stars by FK6, Hipparcos and Tycho-2 data to compile a UCAC4 star catalog complete to about magnitude R = 16. Epoch 1998 to 2004 positions are obtained from observations with the 20 cm aperture USNO Astrograph's red lens, equipped with a 4k by 4k CCD. Mean positions and proper motions are derived by combining these observations with over 140 ground- and space-based catalogs, including Hipparcos/Tycho and the AC2000.2, as well as unpublished measures of over 5000 plates from ...

  9. Fourth Data Challenge for the ALICE data acquisition system

    CERN Multimedia

    Maximilien Brice

    2003-01-01

    The ALICE experiment will study quark-gluon plasma using beams of heavy ions, such as those of lead. The particles in the beams will collide thousands of times per second in the detector and each collision will generate an event containing thousands of charged particles. Every second, the characteristics of tens of thousands of particles will have to be recorded. Thus, to be effective, the data acquisition system (DAQ) must meet extremely strict performance criteria. To this end, the ALICE Data Challenges entail step-by-step testing of the DAQ with existing equipment that is sufficiently close to the final equipment to provide a reliable indication of performance. During the fourth challenge, in 2002, a data acquisition rate of 1800 megabytes per second was achieved by using some thirty parallel-linked PCs running the specially developed DATE software. During the final week of tests in December 2002, the team also tested the Storage Tek linear magnetic tape drives. Their bandwidth is 30 megabytes per second a...

  10. ROSA-V large scale test facility (LSTF) system description for the third and fourth simulated fuel assemblies

    International Nuclear Information System (INIS)

    The Large Scale Test Facility (LSTF) is a full-height and 1/48 volumetrically scaled test facility of the Japan Atomic Energy Research Institute (JAERI) for system integral experiments simulating the thermal-hydraulic responses at full-pressure conditions of a 1100 MWe-class pressurized water reactor (PWR) during small break loss-of-coolant accidents (SBLOCAs) and other transients. The LSTF can also simulate well a next-generation type PWR such as the AP600 reactor. In the fifth phase of the Rig-of-Safety Assessment (ROSA-V) Program, eighty nine experiments have been conducted at the LSTF with the third simulated fuel assembly until June 2001, and five experiments have been conducted with the newly-installed fourth simulated fuel assembly until December 2002. In the ROSA-V program, various system integral experiments have been conducted to certify effectiveness of both accident management (AM) measures in beyond design basis accidents (BDBAs) and improved safety systems in the next-generation reactors. In addition, various separate-effect tests have been conducted to verify and develop computer codes and analytical models to predict non-homogeneous and multi-dimensional phenomena such as heat transfer across the steam generator U-tubes under the presence of non-condensable gases in both current and next-generation reactors. This report presents detailed information of the LSTF system with the third and fourth simulated fuel assemblies for the aid of experiment planning and analyses of experiment results. (author)

  11. ROSA-V large scale test facility (LSTF) system description for the third and fourth simulated fuel assemblies

    Energy Technology Data Exchange (ETDEWEB)

    Suzuki, Mitsuhiro; Nakamura, Hideo; Ohtsu, Iwao [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment] [and others

    2003-03-01

    The Large Scale Test Facility (LSTF) is a full-height and 1/48 volumetrically scaled test facility of the Japan Atomic Energy Research Institute (JAERI) for system integral experiments simulating the thermal-hydraulic responses at full-pressure conditions of a 1100 MWe-class pressurized water reactor (PWR) during small break loss-of-coolant accidents (SBLOCAs) and other transients. The LSTF can also simulate well a next-generation type PWR such as the AP600 reactor. In the fifth phase of the Rig-of-Safety Assessment (ROSA-V) Program, eighty nine experiments have been conducted at the LSTF with the third simulated fuel assembly until June 2001, and five experiments have been conducted with the newly-installed fourth simulated fuel assembly until December 2002. In the ROSA-V program, various system integral experiments have been conducted to certify effectiveness of both accident management (AM) measures in beyond design basis accidents (BDBAs) and improved safety systems in the next-generation reactors. In addition, various separate-effect tests have been conducted to verify and develop computer codes and analytical models to predict non-homogeneous and multi-dimensional phenomena such as heat transfer across the steam generator U-tubes under the presence of non-condensable gases in both current and next-generation reactors. This report presents detailed information of the LSTF system with the third and fourth simulated fuel assemblies for the aid of experiment planning and analyses of experiment results. (author)

  12. Fourth technical contractors' conference on peat

    Energy Technology Data Exchange (ETDEWEB)

    1981-01-01

    This conference reported the status of the US Department of Energy Peat Program. The papers presented dealt with peat dewatering, international peat programs, environmental and socio-economic factors, peat gasification, peat harvesting, and the state peat surveys for 14 states. Separate abstracts were prepared for the individual papers. (CKK)

  13. Fourth-order moments of an open harmonic oscillator (Weyl-Wigner-Moyal and Heisenberg representations)

    International Nuclear Information System (INIS)

    Fourth-order moments in momentum p and coordinate q of an open one-dimensional harmonic oscillator are studied in two different representations (Weyl-Wigner-Moyal and Heisenberg). It is shown that both representations lead to the same explicit expressions of the fourth-order moments in terms of first (centroids) and second order moments (variances). (Author)

  14. Ten years of HIV testing with fourth generation assays: The Amsterdam experience

    NARCIS (Netherlands)

    S. Jurriaans; N.K.T. Back; K.C. Wolthers

    2011-01-01

    Serological HIV assays combining detection of HIV antigen and antibodies are referred to as fourth generation assays. Fourth generation assays were implemented in Europe for routine patient testing about 10 years ago. The Academic Medical Center is one of the main HIV treatment centers in the Nether

  15. On stability and boundedness of solutions of a certain fourth-order delay differential equation

    Directory of Open Access Journals (Sweden)

    Emmanuel O. Okoronkwo

    1989-09-01

    Full Text Available Using a Razumikhin - type theorem, we deduce sufficient conditions that guarantee the uniform asymptotic stability and boundedness of solutions of a scalar real fourth-order delay differential equation. The Lyapunov function constructed for an ordinary fourth-order differential equation is seen to work for the delay system.

  16. PPN-limit of Fourth Order Gravity inspired by Scalar-Tensor Gravity

    OpenAIRE

    Capozziello, S.; Troisi, A.

    2005-01-01

    Based on the {\\it dynamical} equivalence between higher order gravity and scalar-tensor gravity the PPN-limit of fourth order gravity is discussed. We exploit this analogy developing a fourth order gravity version of the Eddington PPN-parameters. As a result, Solar System experiments can be reconciled with higher order gravity, if physical constraints descending from experiments are fulfilled.

  17. ON THE INSTABILITY OF SOLUTIONS TO A NONLINEAR VECTOR DIFFERENTIAL EQUATION OF FOURTH ORDER

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    This paper presents a new result related to the instability of the zero solution to a nonlinear vector differential equation of fourth order.Our result includes and improves an instability result in the previous literature,which is related to the instability of the zero solution to a nonlinear scalar differential equation of fourth order.

  18. The impact of the fourth SM family on the Higgs observability at the LHC

    CERN Document Server

    Arik, E; Sultansoy, S

    2007-01-01

    It is shown that if the fourth SM fermion family exists then the Higgs boson could be observed at the LHC with an integrated luminosity of few fb-1. The Higgs discovery potential for different channels is discussed in the presence of the fourth SM family.

  19. 78 FR 51725 - Fourth Meeting of the Advisory Committee for the 2015 World Radiocommunication Conference

    Science.gov (United States)

    2013-08-21

    ... COMMISSION Fourth Meeting of the Advisory Committee for the 2015 World Radiocommunication Conference AGENCY... Committee Act, this notice advises interested persons that the fourth meeting of the WRC-15 Advisory... World Radiocommunication Conference (WRC-15). In accordance with the Federal Advisory Committee...

  20. 75 FR 2141 - Fourth Meeting of the Advisory Committee for the 2012 World Radiocommunication Conference

    Science.gov (United States)

    2010-01-14

    ... COMMISSION Fourth Meeting of the Advisory Committee for the 2012 World Radiocommunication Conference AGENCY... Committee Act, as amended, this notice advises interested persons that the fourth meeting of the WRC-12 Advisory Committee will be held at the Federal Communications Commission. The purpose of the meeting is...

  1. Programs of the Office of Energy Research

    International Nuclear Information System (INIS)

    The programs of the Office of Energy Research provide basic science support for energy technologies as well as advancing understanding in general science and training future scientists. Energy Research provides insights into fundamental science and associated phenomena and develops new or advanced concepts and techniques. Research of this type has been supported by the Department of Energy and its predecessors for over 40 years and includes research in the natural and physical sciences, including high energy and nuclear physics; magnetic fusion energy; biological and environmental research; and basic energy sciences research in the materials, chemical, and applied mathematical sciences, engineering and geosciences, and energy biosciences. These basic research programs help build the science and technology base that underpins energy development by Government and industry

  2. A rare case of retained fourth molar teeth in maxilla and mandible. Case report

    Directory of Open Access Journals (Sweden)

    Rahnama Mansur

    2014-06-01

    Full Text Available The study presents a case of the rarely occurring totally retained fourth molar teeth simultaneously in maxilla and mandible. The appearance of supernumerary teeth is a relatively uncommon dental anomaly and it is rare for patients to have impacted fourth molars in two quadrant. The aim of this work is to describe the presence of unilateral (right fourth molars in the maxilla and the mandible in a young female patient aged 24 years. Orthopantomogram revealed impacted lower third molars but also unerupted unilateral (right upper and lower fourth molars. Before orthodontic treatment, the patient was subsequently admitted for removal of third and fourth impacted upper and lower molars under local anesthesia.

  3. Linear Programming and Network Flows

    CERN Document Server

    Bazaraa, Mokhtar S; Sherali, Hanif D

    2011-01-01

    The authoritative guide to modeling and solving complex problems with linear programming-extensively revised, expanded, and updated The only book to treat both linear programming techniques and network flows under one cover, Linear Programming and Network Flows, Fourth Edition has been completely updated with the latest developments on the topic. This new edition continues to successfully emphasize modeling concepts, the design and analysis of algorithms, and implementation strategies for problems in a variety of fields, including industrial engineering, management science, operations research

  4. Automatic Generation of Analytic Equations for Vibrational and Rovibrational Constants from Fourth-Order Vibrational Perturbation Theory

    Science.gov (United States)

    Matthews, Devin A.; Gong, Justin Z.; Stanton, John F.

    2014-06-01

    The derivation of analytic expressions for vibrational and rovibrational constants, for example the anharmonicity constants χij and the vibration-rotation interaction constants α^B_r, from second-order vibrational perturbation theory (VPT2) can be accomplished with pen and paper and some practice. However, the corresponding quantities from fourth-order perturbation theory (VPT4) are considerably more complex, with the only known derivations by hand extensively using many layers of complicated intermediates and for rotational quantities requiring specialization to orthorhombic cases or the form of Watson's reduced Hamiltonian. We present an automatic computer program for generating these expressions with full generality based on the adaptation of an existing numerical program based on the sum-over-states representation of the energy to a computer algebra context. The measures taken to produce well-simplified and factored expressions in an efficient manner are discussed, as well as the framework for automatically checking the correctness of the generated equations.

  5. The Community's research and development programme on decommissioning of nuclear power plants. Fourth annual progress report (year 1983)

    International Nuclear Information System (INIS)

    This is the fourth progress report of the European Community's program. (1979-83) of research on decommissioning of nuclear power plants. It covers the year 1983 and follows the 1980, 1981 and 1982 reports (EUR 7440, EUR 8343, EUR 8962). The present report describes the further progress of research and contains a large amount of results. For a majority of the 51 research contracts composing the 1979-83 programme, work was completed by the end of 1983; the conclusions drawn from this work are in this report. The European Community's program deals with the following fields: long-term integrity of buildings and systems; decontamination for decommissioning purposes; dismantling techniques; treatment of specific wastes materials (steel, concrete and graphite); large transport containers for radioactive waste produced in the dismantling of nuclear power plants; estimation of the quantities of radioactive waste arising from the decommissioning of nuclear power plants in the Community; influence of nuclear power plant design features on decommissioning

  6. Internet usage of fourth-grader primary school pupils

    Directory of Open Access Journals (Sweden)

    Peter Kristof Nagy

    2014-08-01

    Full Text Available The development of information and communication technologies has resulted in revolutionary changes, which seem to continue in economy, society and many areas of life. The most important resource of the new social structure emerging as a result of technologies is information, thus the development of human capacity related to the use of information is extremely important. It may not be easy for parents and teachers to face the fact that the majority of their children/pupils know more about cyberspace than themselves. But are primary school pupils really better versed? Does digital literacy indeed automatically evolve? Does the use of the internet by all means improve children’s academic performance? In our current study we are researching how primary school pupils in the easternmost part of Hungary use the internet, and what effects it has on their studies. We would also like to emphasize the role of teachers working at the lower grades of the primary school in the formation of pupils’ digital literacy. In 2013 190 fourth-grader primary school pupils of eight schools filled in our questionnaire. Based on the data negative correlation was found between the time spent on web browsing and the academic average. Analysis of variance also revealed that those pupils have a higher academic average whose parents regularly check the purpose of their children’s internet usage. Our research results showed that the pupils who use the internet and the library equally to search for new information have a higher academic average compared to those pupils who only make use of either the traditional or the online option only. The most important result of the research is that in the case of adequate parental or professional (teacher control internet may have fruitful effects on pupils’ studies, but in the lack of such control the opposite is more likely.

  7. Preface to the first monograph: The Fourth Psychiatric Revolution

    Directory of Open Access Journals (Sweden)

    Ajai R. Singh

    2004-05-01

    Full Text Available At present, psychiatry is in the midst of a fourth revolution. The first revolution was the so-called Moral Treatment which involved the activism of Phileppe Pinel (1745-1826 and William Tuke (1732-1819, as also the efforts of Dorothea Dix (1802-1887. This resulted in destigmatization of the lunatic label which had earlier meant treating the insane in a dehumanizing manner e.g.. chaining them to walls, displaying them for money etc. It resulted in the transition to custodial care and the opening of mental hospitals. The second psychiatric revolution was the Mental Hygiene Movement heralded by the eye­opening works of Elizabeth Packard (Modern Persecution or Insane Hospital Unveiled and Clifford Beers (1876-1943; A Mind That Found Itself which was furthered by, amongst others, pioneers like Adolf Meyer (1866-1950 and William James (1842-1910. This was followed by the third Psychiatric revolution, that of the Community Psychiatry Movement. This involved community participation, removal of restrictions, comprehensive set of services multi-disciplinary in nature, active consumer participation, mental health consultancy and preventive measures. This well intentioned grand movement had its problems, as all such grand movement must indeed have. It became the fountain­source of a fresh crop of difficulties related to transinstitutionalization in boarding and halfway houses, with increased rates of hospital admission, and the 'revolving door syndrome'. Moreover, it lead to an ominous rise in contact between the criminal justice system and the mentally ill as they moved more freely in the community.Today, we are in the midst of a silent by strong fourth revolution. Firstly, this revolution reiterates its strong linkage with the mainstream of medicine. Secondly, it bases itself on strong, empirical findings based on rigorous methodological studies, mainly biological. The major paradigm shift of contemporary psychiatry is towards methodological rigour on

  8. Fourth National Survey of Older Americans Act Participants

    Data.gov (United States)

    U.S. Department of Health & Human Services — AoA's Performance Outcomes Measures project (POMP) helps States and Area Agencies on Aging assess their own program performance, while assisting AoA to meet the...

  9. Proceedings of the fourth annual fuel cells contractors review meeting

    International Nuclear Information System (INIS)

    Objective of the program was to develop the essential technology for private sector commercialization of various fuel cell electrical generation systems, which promise high fuel efficiencies (40--60%), possibilities for cogeneration, modularity, possible urban siting, and low emissions. Purpose of this meeting was to provide the R and D participants in the DOE/Fossil Energy-sponsored Fuel Cells Program with a forum. With the near commercialization of phosphoric acid fuel cells, major emphasis was on molten carbonate and solid oxide fuel cells. 22 papers were given in 3 formal sessions: molten carbonate fuel cells; solid oxide fuel cells; and systems and phosphoric acid. In addition, the proceedings also include a welcome to METC address and comments on the Fuel Cells program from the viewpoint of EPRI and DOE's vehicular fuel cell program. Separate abstracts have been prepared

  10. The AMTEX Partnership{trademark}. Fourth quarter FY95 report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-09-01

    The AMTEX Partnership{trademark} is a collaborative research and development program among the US Integrated Textile Industry, the Department of Energy (DOE), the national laboratories, other federal agencies and laboratories, and universities. The goal of AMTEX is to strengthen the competitiveness of this vital industry, thereby preserving and creating US jobs. The operations and program management of the AMTEX Partnership{trademark} is provided by the Program Office. This report is produced by the Program Office on a quarterly basis and provides information on the progress, operations, and project management of the partnership. Progress is reported on the following projects: computer-aided fabric evaluation; cotton biotechnology; demand activated manufacturing architecture; electronic embedded fingerprints; on-line process control for flexible fiber manufacturing; rapid cutting; sensors for agile manufacturing; and textile resource conservation.

  11. Fourth SIAM conference on mathematical and computational issues in the geosciences: Final program and abstracts

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-12-31

    The conference focused on computational and modeling issues in the geosciences. Of the geosciences, problems associated with phenomena occurring in the earth`s subsurface were best represented. Topics in this area included petroleum recovery, ground water contamination and remediation, seismic imaging, parameter estimation, upscaling, geostatistical heterogeneity, reservoir and aquifer characterization, optimal well placement and pumping strategies, and geochemistry. Additional sessions were devoted to the atmosphere, surface water and oceans. The central mathematical themes included computational algorithms and numerical analysis, parallel computing, mathematical analysis of partial differential equations, statistical and stochastic methods, optimization, inversion, homogenization and renormalization. The problem areas discussed at this conference are of considerable national importance, with the increasing importance of environmental issues, global change, remediation of waste sites, declining domestic energy sources and an increasing reliance on producing the most out of established oil reservoirs.

  12. Women in engineering program advocates network (WEPAN): Evaluation of the fourth annual conference

    Energy Technology Data Exchange (ETDEWEB)

    Brainard, S.G.

    1994-08-01

    The 1994 WEPAN conference highlighted the establishment of the three Regional Centers for Women in Engineering, which are located at the University of Washington, Purdue University, and Stevens Insitute of Technology. An overall evaluation was conducted on the effectiveness of the conference, including the quality of plenary sessions, workshops, registration, accommodations and reception.

  13. Abstracts from the fourth annual meeting of the council on ionizing radiation measurements and standards (CIRMS)

    International Nuclear Information System (INIS)

    The Council on Ionizing Radiation Measurements and Standards held its fourth annual meeting at the National Institute of Standards and Technology, Gaithersburg, Maryland on November 28-30, 1995. The organization represents thousands of users of ionizing radiation and radioactive sources engaged in industrial radiation processing and sterilization, medical radiation diagnostics and therapy, nuclear power, and worker radiation protection programs. CIRMS provides a forum for discussing ionizing radiation issues; identifying, defining and prioritizing needed work; disseminating information on standards; and organizing workshops and meetings to advance ionizing radiation technology. Over 100 participants attended the meeting, which highlighted advanced techniques in radiation dosimetry and radioactivity measurements for the different ionizing radiation communities. Representatives attended from 28 corporations, 10 federal agencies, 8 national laboratories, 12 universities, and 1 state. Advanced techniques and future measurement needs were discussed in four sessions: (I) Medical Dosimetry, Radiology and Nuclear Medicine, (II) Occupational and Radiation Protection Dosimetry, (III) Measurement Techniques for Public and Environmental Radiation Protection, and (IV) Measurement Techniques for Radiation Effects on Materials. An additional session (Session V) was added to this annual meeting on the implementation of ISO 9000 for those CIRMS members involved in instrument and product manufacturing, and those providing radiation measurement services. Abstracts are also included from the poster session (Session VI) held on the final day of the meeting. The 4th Annual Meeting was organized by the Chairman of the Science and Technology Committee, Mr. Joseph C. McDonald of the Battelle Pacific Northwest Laboratory

  14. Studies of the ionospheric turbulence excited by the fourth gyroharmonic at HAARP

    Science.gov (United States)

    Najmi, A.; Milikh, G.; Yampolski, Y. M.; Koloskov, A. V.; Sopin, A. A.; Zalizovski, A.; Bernhardt, P.; Briczinski, S.; Siefring, C.; Chiang, K.; Morton, Y.; Taylor, S.; Mahmoudian, A.; Bristow, W.; Ruohoniemi, M.; Papadopoulos, K.

    2015-08-01

    A study is presented of artificial ionospheric turbulence (AIT) induced by HF heating at High Frequency Active Auroral Research Program (HAARP) using frequencies close to the fourth electron gyroharmonic, in a broad range of radiated powers and using a number of different diagnostics. The diagnostics include GPS scintillations, ground-based stimulated electromagnetic emission (SEE), the HAARP ionosonde, Kodiak radar, and signals received at the Ukrainian Antarctic Station (UAS). The latter allowed analysis of waves scattered by the AIT into the ionospheric waveguide along Earth's terminator, 15.6 mm from the HAARP facility. For the first time, the amplitudes of two prominent SEE features, the downshifted maximum and broad upshifted maximum, were observed to saturate at ~50% of the maximum HAARP effective radiated power. Nonlinear effects in slant total electron content, SEE, and signals received at UAS at different transmitted frequencies and intensities of the pump wave were observed. The correlations between the data from different detectors demonstrate that the scattered waves reach UAS by the waveguide along the Earth's terminator, and that they were injected into the waveguide by scattering off of artificial striations produced by AIT above HAARP, rather than via direct injection from sidelobe radiation.

  15. Sanitary Landfill Groundwater Monitoring Report, Fourth Quarter 1999 and 1999 Summary

    Energy Technology Data Exchange (ETDEWEB)

    Chase, J.

    2000-03-13

    A maximum of thirty eight-wells of the LFW series monitor groundwater quality in the Steed Pond Aquifer (Water Table) beneath the Sanitary Landfill Area at the Savannah River Site (SRS). These wells are sampled quarterly to comply with the South Carolina Department of Health and Environmental Control Domestic Water Permit DWP-087A and as part of the SRS Groundwater Monitoring Program. Iron (Total Recoverable), Chloroethene (Vinyl Chloride) and 1,1-Dichloroethane were the most widespread constituents exceeding the Final Primary Drinking Water Standards during 1999. Trichloroethylene, 1,1-Dichloroethylene, 1,2-Dichloroethane, 1,4-Dichlorobenzene, Aluminum (Total Recoverable), Benzene, cis-1,2-Dichloroethylene, Dichlorodifluoromethane, Dichloromethane (Methylene Chloride), Gross Alpha, Mercury (Total Recoverable), Nonvolatile Beta, Tetrachloroethylene, Total Organic Halogens, Trichlorofluoromethane, Tritium also exceeded standards in one or more wells. The groundwater flow direction in the Steed Pond Aquifer (Water Table) beneath the Sanitary Landfill is to the southeast (universal transverse Mercator coordinates). The flow rate in this unit was approximately 144.175 ft/year during first quarter 1999 and 145.27 ft/year during fourth quarter 1999.

  16. Sanitary landfill groundwater monitoring report. Fourth quarter 1996 and 1996 summary

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-02-01

    A maximum of eighty-nine wells of the LFW series monitor groundwater quality in the Steed Pond Aquifer (Water Table) beneath the Sanitary Landfill at the Savannah River Site (SRS). These wells are sampled quarterly to comply with the South Carolina Department of Health and Environmental Control Domestic Waste Permit DWP-087A and as part of the SRS Groundwater Monitoring Program. Dichloromethane, a common laboratory contaminant, and chloroethene (vinyl chloride) were the most widespread constituents exceeding standards during 1996. Benzene, trichloroethylene, 1,4-dichlorobenzene, 1,1-dichloroethylene, lead (total recoverable), gross alpha, mercury (total recoverable), tetrachloroethylene, fluoride, thallium, radium-226, radium-228, and tritium also exceeded standards in one or more wells. The groundwater flow direction in the Steed Pond Aquifer (Water Table) beneath the Sanitary Landfill was to the southeast (universal transverse Mercator coordinates). The flow rate in this unit was approximately 141 ft/year during first quarter 1996 and 132 ft/year during fourth quarter 1996

  17. Rethinking and Reconstruction on Animal Welfare in Experiments of Bioscience%生命科学实验中动物福利问题的反思与重构——基于生态哲学视角

    Institute of Scientific and Technical Information of China (English)

    朱玉芳

    2011-01-01

    针对目前生命科学实验中学生排斥使用实验动物的现象,反思并分析了过度关注动物福利的原因,并在解读生态哲学思想的基础上重构了实验中动物福利问题,旨在为高校的生命科学实验的顺利进行提供启示和借鉴.%At present,according to the phenomenon that students reject experimenting on animal in experiments of bioscience.the article reflects on and analyses the reasons for paying excessive attention to animal welfare,and on the basis of interpreting ecological philosophy,it rebuild the view of animal welfare in experiment,aiming at providing enlightenment and experience for carrying on biological science experiment successfully in college.

  18. KINETICS OF SLURRY PHASE FISCHER-TROPSCH SYNTHESIS. FOURTH ANNUAL TECHNICAL PROGRESS REPORT

    International Nuclear Information System (INIS)

    This report covers the fourth year of a research project conducted under the University Coal Research Program. The overall objective of this project is to develop a comprehensive kinetic model for slurry-phase Fischer-Tropsch synthesis (FTS) employing iron-based catalysts. This model will be validated with experimental data obtained in a stirred-tank slurry reactor (STSR) over a wide range of process conditions. The model will be able to predict molar flow rates and concentrations of all reactants and major product species (water, carbon dioxide, linear 1- and 2-olefins, and linear paraffins) as a function of reaction conditions in the STSR. During the fourth year of the project, an analysis of experimental data collected during the second year of this project was performed. Kinetic parameters were estimated utilizing product distributions from 27 mass balances. During the reporting period two kinetic models were employed: a comprehensive kinetic model of Dr. Li and co-workers (Yang et al., 2003) and a hydrocarbon selectivity model of Van der Laan and Beenackers (1998, 1999) The kinetic model of Yang et al. (2003) has 24 parameters (20 parameters for hydrocarbon formation, and 4 parameters for the water-gas-shift (WGS) reaction). Kinetic parameters for the WGS reaction and FTS synthesis were estimated first separately, and then simultaneously. The estimation of these kinetic parameters employed the Levenberg-Marquardt (LM) method and the trust-region reflective Newton large-scale (LS) method. A genetic algorithm (GA) was incorporated into estimation of parameters for FTS reaction to provide initial estimates of model parameters. All reaction rate constants and activation energies were found to be positive, but at the 95% confidence level the intervals were large. Agreement between predicted and experimental reaction rates has been fair to good. Light hydrocarbons are predicted fairly accurately, whereas the model underpredicts values of higher molecular weight

  19. Seismological analysis of the fourth North Korean nuclear test

    Science.gov (United States)

    Hartmann, Gernot; Gestermann, Nicolai; Ceranna, Lars

    2016-04-01

    The Democratic People's Republic of Korea has conducted its fourth underground nuclear explosions on 06.01.2016 at 01:30 (UTC). The explosion was clearly detected and located by the seismic network of the International Monitoring System (IMS) of the Comprehensive Nuclear-Test-Ban Treaty (CTBT). Additional seismic stations of international earthquake monitoring networks at regional distances, which are not part of the IMS, are used to precisely estimate the epicenter of the event in the North Hamgyong province (41.38°N / 129.05°E). It is located in the area of the North Korean Punggye-ri nuclear test site, where the verified nuclear tests from 2006, 2009, and 2013 were conducted as well. The analysis of the recorded seismic signals provides the evidence, that the event was originated by an explosive source. The amplitudes as well as the spectral characteristics of the signals were examined. Furthermore, the similarity of the signals with those from the three former nuclear tests suggests very similar source type. The seismograms at the 8,200 km distant IMS station GERES in Germany, for example, show the same P phase signal for all four explosions, differing in the amplitude only. The comparison of the measured amplitudes results in the increasing magnitude with the chronology of the explosions from 2006 (mb 4.2), 2009 (mb 4.8) until 2013 (mb 5.1), whereas the explosion in 2016 had approximately the same magnitude as that one three years before. Derived from the magnitude, a yield of 14 kt TNT equivalents was estimated for both explosions in 2013 and 2016; in 2006 and 2009 yields were 0.7 kt and 5.4 kt, respectively. However, a large inherent uncertainty for these values has to be taken into account. The estimation of the absolute yield of the explosions depends very much on the local geological situation and the degree of decoupling of the explosive from the surrounding rock. Due to the missing corresponding information, reliable magnitude-yield estimation for the

  20. Students’ Perspectives on the Fourth Year of Medical School: A Mixed-Methods Analysis

    Science.gov (United States)

    Lockspeiser, Tai M.; Gong, Jennifer; Guiton, Gretchen

    2014-01-01

    Purpose Little is known about the purpose and value of the fourth year of medical school from the perspective of medical students. In this study, the authors systematically explored the year’s purpose and value as determined by students. Method In April 2011, the authors conducted semistructured focus groups with graduating fourth-year students at the University of Colorado School of Medicine to understand their perspectives on the purpose of the fourth year. Using results of a thematic analysis of the focus group data, the authors developed and administered a 10-item questionnaire to all graduating fourth-year medical students in May 2011. Questionnaire data were analyzed using descriptive statistics and exploratory factor analysis. Results A total of 17 students participated in two focus groups. Six themes related to the purpose of the fourth year emerged from the focus group data: career development and preparation, pursuing personal interests, career identification, exploration of diverse practice settings, influence of emotion, and flexibility and individualization. The questionnaire was completed by 134 of 148 students (91% response rate). Factor analysis of the questionnaire data identified five factors: strengthening one’s residency application, developing skills, pursuing personal interests, exploring diverse practice settings, and identifying a career. Conclusions Medical students uniformly identified the fourth year of medical school as having purpose and value, but their views on the fourth year’s purpose differed. This finding underscores the importance of the individualization of the fourth year. Students’ perspectives should inform any decisions made about modifying fourth-year curricula and structure. PMID:24556778

  1. Generation and synchronization of N-scroll chaotic and hyperchaotic attractors in fourth-order systems

    Institute of Scientific and Technical Information of China (English)

    Yu Si-Min; Ma Zai-Guang; Qiu Shui-Sheng; Peng Shi-Guo; Lin Qing-Hua

    2004-01-01

    Based on our previous works and Lyapunov stability theory, this paper studies the generation and synchronization of N-scroll chaotic and hyperchaotic attractors in fourth-order systems. A fourth-order circuit, by introducing additional breakpoints in the modified Chua oscillator, is implemented for the study of generation and synchronization of N-scroll chaotic attractors. This confirms the consistency of theoretical calculation, numerical simulation and circuit experiment.Furthermore, we give a refined and extended study of generating and synchronizing N-scroll hyperchaotic attractors in the fourth-order MCK system and report the new theoretical result, which is verified by computer simulations.

  2. Bound Energy Masses of Mesons Containing the Fourth Generation and Iso-singlet Quarks

    OpenAIRE

    Ikhdair, Sameer M.; Sever, Ramazan

    2005-01-01

    The fourth Standard Model (SM) family quarks and weak iso-singlet quarks The fourth Standard Model (SM) family quarks and weak iso-singlet quarks predicted by ${\\rm E}_{6\\text{}}$ GUT are considered. The spin-average of the pseudoscalar $\\eta_{4}(n^{1}S_{0})$ and vector $\\psi_{4}(n^{3}S_{1})$ quarkonium binding masses of the new mesons formed by the fourth Standard Model (SM) family and iso-singlet ${\\rm E}_{6\\text{}}$ with their mixings to ordinary quarks are investigated. Further, the fine ...

  3. Weldon Spring Site Remedial Action Project quarterly environmental data summary (QEDS) for fourth quarter 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-02-01

    This report contains the Quarterly Environmental Data Summary (QEDS) for the fourth quarter of 1998 in support of the Weldon Spring Site Remedial Action Project Federal Facilities Agreement. The data, except for air monitoring data and site KPA generated data (uranium analyses) were received from the contract laboratories, verified by the Weldon Spring Site verification group, and merged into the database during the fourth quarter of 1998. KPA results for on-site total uranium analyses performed during fourth quarter 1998 are included. Air monitoring data presented are the most recent complete sets of quarterly data.

  4. Solvability of the Dirichlet problem for the fourth degree equation and construction of the solutions in a disc

    International Nuclear Information System (INIS)

    The Dirichlet problem for the fourth degree equation is considered. A theorem about close relationship between the fourth degree operator and Sobolev type operator is proved. The exact solution of Dirichlet problem in a unit disc is constructed

  5. A chain reaction: the Fourth World Conference on Women and beyond.

    Science.gov (United States)

    Sarkar, D

    1995-01-01

    The UN's Fourth World Conference on Women, held in September 1995 in Beijing, China, fostered international dialogue on complex issues related to women. The Platform of Action maps the boundaries that confine women and recommends actions to redress key concerns, including poverty, violence, education health, the environment, and political and social status. National and regional studies throughout the world show that a great number of women are pushed into prostitution, are sexually abused, raped, forcibly sterilized, and coerced into having abortions. In the US, nearly 4 million women are physically abused every year, according to a 1994 US Department of State report on the status of women. The 1995 UN Human Development Report estimates that one American woman in six is raped in her lifetime. The Beijing document underscores education as a way to empower women and help to break patterns of violence and discrimination. It is estimated that women perform 60% of the world's work but earn only 10% of the world's income and own less that 1% of the world's assets. Governments, institutions, and nongovernmental organizations (NGOs) pledged monetary support to develop programs that are favorable toward women. The US announced that a 6-year $1.5 billion program will fight domestic violence, and additional proposals include increasing resources to combat the spread of HIV/AIDS, decrease smoking and breast cancer, improve wages and conditions for women in the workplace, expand financial credit for women, and promote their participation in the political process. In addition, the World Bank has pledged to spend $5 billion of its $20 billion annual lending to address the particular concerns of women and to target $200 million for miniloans to help women start their own businesses. Throughout the world, education and family planning projects have helped women make informed choices about their families, resulting in improved reproductive health and lower fertility rates. PMID

  6. Effects of Values Instruction on Third and Fourth Grade Students.

    Science.gov (United States)

    Jones, Connie A.; Gower, Diane

    Character or values instruction has been relegated to the hidden curriculum since the decline of 1960s values programs. However, teachers are beginning to use character instruction in an organized way. The purpose of this study was to determine whether instruction using children's literature would effect student perceptions of value laden…

  7. Proceedings of the fourth international conference on CANDU maintenance

    International Nuclear Information System (INIS)

    These proceedings record the information presented at the 4th International Conference on CANDU Maintenance held November 16-18,1997 in Toronto, Canada. The papers for these proceedings were prepared on component maintenance, human performance, steam generator leak detection, fuel channel inspections, rotating equipment maintenance, surveillance programs, inspection techniques, valve maintenance, steam generator repairs and performance, reactor aging management and preventative maintenance

  8. Proceedings Fourth International Symposium on Symbolic Computation in Software Science

    OpenAIRE

    Bouhoula, Adel; Ida, Tetsuo; Kamareddine, Fairouz

    2013-01-01

    Symbolic computation is the science of computing with symbolic objects (terms, formulae, programs, algebraic objects, geometrical objects, etc). Powerful symbolic algorithms have been developed during the past decades and have played an influential role in theorem proving, automated reasoning, software verification, model checking, rewriting, formalisation of mathematics, network security, Groebner bases, characteristic sets, etc. The international Symposium on "Symbolic Computation in Softwa...

  9. Proceedings of the fourth Pacific Basin nuclear conference

    International Nuclear Information System (INIS)

    The 45 papers presented at this conference examined the status, future plans and significance of nuclear development for the Pacific Basin. Sessions covered the topics of energy and economics, nuclear power programs, the fuel cycle, waste management, seismic design, radionuclide production and use, and issues affecting nuclear goals

  10. Proceedings of the fourth international conference on CANDU maintenance

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-07-01

    These proceedings record the information presented at the 4th International Conference on CANDU Maintenance held November 16-18,1997 in Toronto, Canada. The papers for these proceedings were prepared on component maintenance, human performance, steam generator leak detection, fuel channel inspections, rotating equipment maintenance, surveillance programs, inspection techniques, valve maintenance, steam generator repairs and performance, reactor aging management and preventative maintenance.

  11. An Introduction to Programming for Bioscientists: A Python-Based Primer.

    Directory of Open Access Journals (Sweden)

    Berk Ekmekci

    2016-06-01

    Full Text Available Computing has revolutionized the biological sciences over the past several decades, such that virtually all contemporary research in molecular biology, biochemistry, and other biosciences utilizes computer programs. The computational advances have come on many fronts, spurred by fundamental developments in hardware, software, and algorithms. These advances have influenced, and even engendered, a phenomenal array of bioscience fields, including molecular evolution and bioinformatics; genome-, proteome-, transcriptome- and metabolome-wide experimental studies; structural genomics; and atomistic simulations of cellular-scale molecular assemblies as large as ribosomes and intact viruses. In short, much of post-genomic biology is increasingly becoming a form of computational biology. The ability to design and write computer programs is among the most indispensable skills that a modern researcher can cultivate. Python has become a popular programming language in the biosciences, largely because (i its straightforward semantics and clean syntax make it a readily accessible first language; (ii it is expressive and well-suited to object-oriented programming, as well as other modern paradigms; and (iii the many available libraries and third-party toolkits extend the functionality of the core language into virtually every biological domain (sequence and structure analyses, phylogenomics, workflow management systems, etc.. This primer offers a basic introduction to coding, via Python, and it includes concrete examples and exercises to illustrate the language's usage and capabilities; the main text culminates with a final project in structural bioinformatics. A suite of Supplemental Chapters is also provided. Starting with basic concepts, such as that of a "variable," the Chapters methodically advance the reader to the point of writing a graphical user interface to compute the Hamming distance between two DNA sequences.

  12. An Introduction to Programming for Bioscientists: A Python-Based Primer

    Science.gov (United States)

    Mura, Cameron

    2016-01-01

    Computing has revolutionized the biological sciences over the past several decades, such that virtually all contemporary research in molecular biology, biochemistry, and other biosciences utilizes computer programs. The computational advances have come on many fronts, spurred by fundamental developments in hardware, software, and algorithms. These advances have influenced, and even engendered, a phenomenal array of bioscience fields, including molecular evolution and bioinformatics; genome-, proteome-, transcriptome- and metabolome-wide experimental studies; structural genomics; and atomistic simulations of cellular-scale molecular assemblies as large as ribosomes and intact viruses. In short, much of post-genomic biology is increasingly becoming a form of computational biology. The ability to design and write computer programs is among the most indispensable skills that a modern researcher can cultivate. Python has become a popular programming language in the biosciences, largely because (i) its straightforward semantics and clean syntax make it a readily accessible first language; (ii) it is expressive and well-suited to object-oriented programming, as well as other modern paradigms; and (iii) the many available libraries and third-party toolkits extend the functionality of the core language into virtually every biological domain (sequence and structure analyses, phylogenomics, workflow management systems, etc.). This primer offers a basic introduction to coding, via Python, and it includes concrete examples and exercises to illustrate the language’s usage and capabilities; the main text culminates with a final project in structural bioinformatics. A suite of Supplemental Chapters is also provided. Starting with basic concepts, such as that of a “variable,” the Chapters methodically advance the reader to the point of writing a graphical user interface to compute the Hamming distance between two DNA sequences. PMID:27271528

  13. An Introduction to Programming for Bioscientists: A Python-Based Primer.

    Science.gov (United States)

    Ekmekci, Berk; McAnany, Charles E; Mura, Cameron

    2016-06-01

    Computing has revolutionized the biological sciences over the past several decades, such that virtually all contemporary research in molecular biology, biochemistry, and other biosciences utilizes computer programs. The computational advances have come on many fronts, spurred by fundamental developments in hardware, software, and algorithms. These advances have influenced, and even engendered, a phenomenal array of bioscience fields, including molecular evolution and bioinformatics; genome-, proteome-, transcriptome- and metabolome-wide experimental studies; structural genomics; and atomistic simulations of cellular-scale molecular assemblies as large as ribosomes and intact viruses. In short, much of post-genomic biology is increasingly becoming a form of computational biology. The ability to design and write computer programs is among the most indispensable skills that a modern researcher can cultivate. Python has become a popular programming language in the biosciences, largely because (i) its straightforward semantics and clean syntax make it a readily accessible first language; (ii) it is expressive and well-suited to object-oriented programming, as well as other modern paradigms; and (iii) the many available libraries and third-party toolkits extend the functionality of the core language into virtually every biological domain (sequence and structure analyses, phylogenomics, workflow management systems, etc.). This primer offers a basic introduction to coding, via Python, and it includes concrete examples and exercises to illustrate the language's usage and capabilities; the main text culminates with a final project in structural bioinformatics. A suite of Supplemental Chapters is also provided. Starting with basic concepts, such as that of a "variable," the Chapters methodically advance the reader to the point of writing a graphical user interface to compute the Hamming distance between two DNA sequences. PMID:27271528

  14. PREFACE: Fourth Meeting on Constrained Dynamics and Quantum Gravity

    Science.gov (United States)

    Cadoni, Mariano; Cavaglia, Marco; Nelson, Jeanette E.

    2006-04-01

    The formulation of a quantum theory of gravity seems to be the unavoidable endpoint of modern theoretical physics. Yet the quantum description of the gravitational field remains elusive. The year 2005 marks the tenth anniversary of the First Meeting on Constrained Dynamics and Quantum Gravity, held in Dubna (Russia) due to the efforts of Alexandre T. Filippov (JINR, Dubna) and Vittorio de Alfaro (University of Torino, Italy). At the heart of this initiative was the desire for an international forum where the status and perspectives of research in quantum gravity could be discussed from the broader viewpoint of modern gauge field theories. Since the Dubna meeting, an increasing number of scientists has joined this quest. Progress was reported in two other conferences in this series: in Santa Margherita Ligure (Italy) in 1996 and in Villasimius (Sardinia, Italy) in 1999. After a few years of ``working silence'' the time was now mature for a new gathering. The Fourth Meeting on Constrained Dynamics and Quantum Gravity (QG05) was held in Cala Gonone (Sardinia, Italy) from Monday 12th to Friday 16th September 2005. Surrounded by beautiful scenery, 100 scientists from 23 countries working in field theory, general relativity and related areas discussed the latest developments in the quantum treatment of gravitational systems. The QG05 edition covered many of the issues that had been addressed in the previous meetings and new interesting developments in the field, such as brane world models, large extra dimensions, analogue models of gravity, non-commutative techniques etc. The format of the meeting was similar to the previous ones. The programme consisted of invited plenary talks and parallel sessions on cosmology, quantum gravity, strings and phenomenology, gauge theories and quantisation and black holes. A major goal was to bring together senior scientists and younger people at the beginning of their scientific career. We were able to give financial support to both

  15. Genome-wide mapping of Painting of fourth on Drosophila melanogaster salivary gland polytene chromosomes

    Science.gov (United States)

    Johansson, Anna-Mia; Larsson, Jan

    2014-01-01

    The protein Painting of fourth (POF) in Drosophila melanogaster specifically targets and stimulates expression output from the heterochromatic 4th chromosome, thereby representing an autosome specific protein [[1], [2

  16. Time-Periodic Solution of a 2D Fourth-Order Nonlinear Parabolic Equation

    Indian Academy of Sciences (India)

    Xiaopeng Zhao; Changchun Liu

    2014-08-01

    By using the Galerkin method, we study the existence and uniqueness of time-periodic generalized solutions and time-periodic classical solutions to a fourth-order nonlinear parabolic equation in 2D case.

  17. 78 FR 20168 - Twenty Fourth Meeting: RTCA Special Committee 203, Unmanned Aircraft Systems

    Science.gov (United States)

    2013-04-03

    ...: Meeting Notice of RTCA Special Committee 203, Unmanned Aircraft Systems. SUMMARY: The FAA is issuing this... Document--Operational Functional Requirements and Safety Objectives for Unmanned Aircraft Systems and... Federal Aviation Administration Twenty Fourth Meeting: RTCA Special Committee 203, Unmanned...

  18. Which Fourth-Grade Children Participate in School Breakfast and Do Their Parents Know It?

    OpenAIRE

    Guinn, Caroline H; Baxter, Suzanne Domel; THOMPSON, WILLIAM O.; FRYE, FRANCESCA H. A.; KOPEC, CANDACE T.

    2002-01-01

    Objective: To explore fourth-graders' school breakfast participation by gender and race (black, white) and examine the extent to which parents' responses to “Does this child usually eat school breakfast?” reflected their children's participation.

  19. Thermodynamic and classical instability of AdS black holes in fourth-order gravity

    International Nuclear Information System (INIS)

    We study thermodynamic and classical instability of AdS black holes in fourth-order gravity. These include the BTZ black hole in new massive gravity, Schwarzschild-AdS black hole, and higher-dimensional AdS black holes in fourth-order gravity. All thermodynamic quantities which are computed using the Abbot-Deser-Tekin method are used to study thermodynamic instability of AdS black holes. On the other hand, we investigate the s-mode Gregory-Laflamme instability of the massive graviton propagating around the AdS black holes. We establish the connection between the thermodynamic instability and the GL instability of AdS black holes in fourth-order gravity. This shows that the Gubser-Mitra conjecture holds for AdS black holes found from fourth-order gravity

  20. Fourth-generation effects on the rare B→K*νν-bar decay

    International Nuclear Information System (INIS)

    The rare B→K*νν-bar decay is analysed with a new up-like quark t-' in a sequential fourth-generation model. Two possible solutions for the fourth-generation CKM (Cabibbo-Kabayashi-Maskawa) factor Vts*Vtb± obtained as a function of the new t-' quark mass are used. The branching ratio (BR) and missing-energy spectrum of this decay in the two cases are estimated. In one case, it is shown that for mt-'≥ 200 GeV a significant enhancement to the BR and the missing-energy spectrum of this decay over the SM (standard model) is recorded, while the results are almost same in the other case. If a fourth generation should exist in nature and nature chooses this case, this B-meson decay mode could be a good probe for the existence of the fourth generation, or perhaps a signal for a new physics. (author)

  1. Quarterly environmental radiological survey summary: 100, 200, 300 and 600 Areas. Fourth quarter 1994

    International Nuclear Information System (INIS)

    This report provides a summary of the radiological surveys performed on waste disposal sites located at the Hanford Site. The Fourth Quarter 1994 survey results and the status of actions required from current and past reports are summarized

  2. On the sign-regularity of positive fourth-order differential operators

    OpenAIRE

    Vladimirov, A. A.

    2016-01-01

    It is shown that positivity in $(0,1)\\times (0,1)$ of Green function of positively defined fourth-order ordinary differential operator (with separated boundary conditions) is a criterium of sign-regularity of this operator.

  3. Anomalous single production of the fourth SM family quarks at Tevatron

    CERN Document Server

    Arik, E; Sultansoy, S F

    2003-01-01

    Possible single productions of fourth family u_{4} and d_{4} quarks via anomalous q_{4}qV interactions at Tevatron are studied. Signature of such processes are discussed and compared with the recent results from Tevatron.

  4. Search for anomalous single production of the fourth SM family quark decaying into a light scalar

    CERN Document Server

    Arik, E; Sultansoy, S F

    2003-01-01

    Superjet events observed by the CDF Collaboration are interpreted as anomalous single production of the fourth SM family $u_4$ quark, decaying into a new light scalar particle. The specific predictions of the proposed mechanism are discussed.

  5. Mixed Waste Management Facility Groundwater Monitoring Report, Fourth Quarter 1998 and 1998 Summary

    Energy Technology Data Exchange (ETDEWEB)

    Chase, J.

    1999-04-29

    During fourth quarter 1998, ten constituents exceeded final Primary Drinking Water Standards (PDWS) in groundwater samples from downgradient monitoring wells at the Mixed Waste Management Facility. No constituents exceeded final PDWS in samples from the upgradient monitoring wells.

  6. Exponential decay of solutions to a fourth-order viscoelastic evolution equation in R^n

    Directory of Open Access Journals (Sweden)

    Mohammad Kafini

    2010-05-01

    Full Text Available In this article, we consider a Cauchy problem for a viscoelastic wave equation of fourth order. Under suitable conditions on the initial data and the relaxation function, we show that the rate of decay is exponential.

  7. Motion of 3He quasiparticles in aerogel driven by fourth sound

    International Nuclear Information System (INIS)

    While the shear viscous motion of the normal fluid component causes the energy loss of the fourth sound resonance in superfluid 3He confined in narrow pores, it is not yet clear what causes the energy loss of the fourth sound in the aerogel system. We prepared two aerogel samples of 99.0% and 97.5% porosities, which were directly grown in sintered silver sponges and performed the fourth sound resonance experiments. We found that the energy loss of the fourth sound resonance in aerogel is much smaller than that in pure liquid 3He, showing that the mean free path of 3He quasiparticles is strongly suppressed by aerogel strands. Such behavior is explained with the frictional flow. The temperature dependence of the frictional relaxation time will be discussed.

  8. Fourth Ventricular Schwannoma: Identical Clinicopathologic Features as Schwann Cell-Derived Schwannoma with Unique Etiopathologic Origins

    OpenAIRE

    Allan H. Friedman; Senthil Radhakrishnan; Cummings, Thomas J.; June Tibaleka; Shahid M. Nimjee; Karikari, Isaac O.; Hodges, Tiffany R.

    2011-01-01

    Background. To our knowledge, this is the sixth reported case in the literature of fourth ventricular schwannoma. The etiology and natural history of intraventricular schwannomas is not well understood. A thorough review of potential etiopathogenic mechanisms is provided in this case report. Case Description. A 69-year-old man presented with an incidentally found fourth ventricular tumor during an evaluation for generalized weakness, gait instability, and memory disturbance. Magnetic resonanc...

  9. Adenocarcinoma of the third and fourth portions of the duodenum: The capsule endoscopy value

    OpenAIRE

    Paquissi, Feliciano Chanana; Lima, Ana Henriqueta Filipe Bunga Pimentel; Lopes, Maria de Fátima do Nascimento Vieira; Diaz, Francisco Viamontes

    2015-01-01

    Primary adenocarcinoma of the small intestine occurs in over 50% of cases in the duodenum. However, its location in the third and fourth duodenal portions occurs rarely and is a diagnostic challenge. The aim of this work is to report an adenocarcinoma of the third and fourth duodenal portions, emphasizing its diagnostic difficulty and the value of video capsule endoscopy. A man, 40 years old, with no medical history, with abdominal discomfort and progressive fatigue, presented four months ago...

  10. Alveolar rhabdomyosarcoma originating between the fourth and fifth metatarsal--case report and literature review.

    LENUS (Irish Health Repository)

    Bolger, J C

    2010-09-01

    We report a case of alveolar rhabdomyosarcoma arising between the fourth and fifth metatarsal. A 13-year-old boy presented to outpatients with a history of pain and swelling in the lateral aspect of his left forefoot. Plain radiographs and MRI showed a soft tissue mass displacing the fourth metatarsal. Percutaneous biopsy revealed an alveolar rhabdomyosarcoma. Staging scans showed advanced metastatic disease. The patient was treated with chemotherapy. This highly malignant lesion remains challenging to diagnose, and difficult to treat successfully.

  11. Joint Use of Third and Fourth Cumulants in Independent Component Analysis

    OpenAIRE

    Virta, Joni; Nordhausen, Klaus; Oja, Hannu

    2015-01-01

    The independent component model is a latent variable model where the components of the observed random vector are linear combinations of latent independent variables. The aim is to find an estimate for a transformation matrix back to independent components. In moment-based approaches third cumulants are often neglected in favor of fourth cumulants, even though both approaches have similar appealing properties. This paper considers the joint use of third and fourth cumulants in finding indepen...

  12. An Inquiry Into How Fourth-Grade Students Investigate Their Theories For Learning Scientific Vocabulary

    OpenAIRE

    Miller, Tatiana Frederiksen

    2015-01-01

    ABSTRACTAN INQUIRY INTO HOW FOURTH-GRADE STUDENTS INVESTIGATE THEIR THEORIES FOR LEARNING SCIENTIFIC VOCABULARYByTatiana F. MillerWhile instructional practices that engage students in developing metacognitive skills and capabilities are likely to be beneficial for all students, they may be particularly beneficial for students who are traditionally less well-served by schools. In this research, two culturally and linguistically diverse groups of fourth-grade students engaged in developing and ...

  13. Fourth-order 2N-storage Runge-Kutta schemes

    Science.gov (United States)

    Carpenter, Mark H.; Kennedy, Christopher A.

    1994-01-01

    A family of five-stage fourth-order Runge-Kutta schemes is derived; these schemes required only two storage locations. A particular scheme is identified that has desirable efficiency characteristics for hyperbolic and parabolic initial (boundary) value problems. This scheme is competitive with the classical fourth-order method (high-storage) and is considerably more efficient and accurate than existing third-order low-storage schemes.

  14. A fourth order spline collocation approach for a business cycle model

    Science.gov (United States)

    Sayfy, A.; Khoury, S.; Ibdah, H.

    2013-10-01

    A collocation approach, based on a fourth order cubic B-splines is presented for the numerical solution of a Kaleckian business cycle model formulated by a nonlinear delay differential equation. The equation is approximated and the nonlinearity is handled by employing an iterative scheme arising from Newton's method. It is shown that the model exhibits a conditionally dynamical stable cycle. The fourth-order rate of convergence of the scheme is verified numerically for different special cases.

  15. Improved Weighted Shapley Value Model for the Fourth Party Logistics Supply Chain Coalition

    OpenAIRE

    Na Xu

    2013-01-01

    How to make the individual get the reasonable and practical profit among the fourth party logistics supply chain coalition system is still a question for further study. Considering the characteristics of the fourth party logistics supply chain coalition, this paper combines Shapley Value with Distribution according to Contribution, two methods in the application, and then adjusts the profit allocated to each member reasonably based on the actual coalition situation named improved weighted Sha...

  16. The community's research and development programme on decommissioning of nuclear installations. Fourth annual progress report 1988

    International Nuclear Information System (INIS)

    This is the fourth annual progress report on the European Community's programme (1984-88) of research on the decommissioning of nuclear installations. It shows the status of the programme at 31 December 1988. The fourth progress report describes the objectives, scope and work programme of the 72 research contracts concluded, as well as the progress of work achieved and the results obtained in 1988

  17. Investigating Integer Restrictions in Linear Programming

    Science.gov (United States)

    Edwards, Thomas G.; Chelst, Kenneth R.; Principato, Angela M.; Wilhelm, Thad L.

    2015-01-01

    Linear programming (LP) is an application of graphing linear systems that appears in many Algebra 2 textbooks. Although not explicitly mentioned in the Common Core State Standards for Mathematics, linear programming blends seamlessly into modeling with mathematics, the fourth Standard for Mathematical Practice (CCSSI 2010, p. 7). In solving a…

  18. Profiles of Effective Corporate Giving Programs.

    Science.gov (United States)

    Knauft, E. B.

    A research study of 48 United States corporate giving programs is described. The companies are generally large or mid-range in size and represent 15 different business and industry classifications. The size of their contributions programs ranged from $98,000 to $53 million in annual grants, with a median of $4.3 million. About three-fourths of the…

  19. Two-dimensional instabilities of weakly nonlinear capillary gravity waves of permanent form near the fourth harmonic resonance

    International Nuclear Information System (INIS)

    Three systems of weakly nonlinear envelope equations for a fundamental mode and its fourth harmonic of two-dimensional capillary gravity waves on deep water are derived. These systems are used to investigate stability of progressive periodic waves of permanent form. It is found that the permanent waves in which the fundamental mode and its fourth harmonic are of the same order are unstable. Modulational instability in which the dominant mode in the eigenfunction is near the fourth harmonic is found in the third order approximation. Furthermore, instability related to the fourth harmonic resonance is found in the fourth order approximation. (author)

  20. Laboratory Directed Research and Development Program FY 2006

    Energy Technology Data Exchange (ETDEWEB)

    Hansen (Ed.), Todd

    2007-03-08

    The Ernest Orlando Lawrence Berkeley National Laboratory (Berkeley Lab or LBNL) is a multi-program national research facility operated by the University of California for the Department of Energy (DOE). As an integral element of DOE's National Laboratory System, Berkeley Lab supports DOE's missions in fundamental science, energy resources, and environmental quality. Berkeley Lab programs advance four distinct goals for DOE and the nation: (1) To perform leading multidisciplinary research in the computing sciences, physical sciences, energy sciences, biosciences, and general sciences in a manner that ensures employee and public safety and protection of the environment. (2) To develop and operate unique national experimental facilities for qualified investigators. (3) To educate and train future generations of scientists and engineers to promote national science and education goals. (4) To transfer knowledge and technological innovations and to foster productive relationships among Berkeley Lab's research programs, universities, and industry in order to promote national economic competitiveness.

  1. Modular Specification of Java Programs

    OpenAIRE

    Tushkanova, Elena; Giorgetti, Alain; Marché, Claude; Kouchnarenko, Olga

    2009-01-01

    This work investigates the question of modular specification of generic Java classes and methods. The first part introduces a specification language for Java programs. In the second part the language is used to specify an array sorting algorithm by selection. The third and the fourth parts define a syntax proposal for the specification a generic Java programs, through two examples. The former is the specification of the generic method for sorting arrays which comes in the java.util.Arrays cla...

  2. Democratic Republic of the Congo; Fourth Review Under the Three-Year Arrangement Under the Poverty Reduction and Growth Facility, Requests for Waiver of Performance Criteria and Additional Interim Assistance Under the Enhanced Initiative for Heavily Indebted Poor Countries

    OpenAIRE

    International Monetary Fund

    2004-01-01

    This paper discusses Congo’s Fourth Review Under the Three-Year Arrangement Under the Poverty Reduction and Growth Facility (PRGF), and Requests for Waiver of Performance Criteria. Overall performance under the program was satisfactory and at end-March 2004, 8 out of the 11 quantitative performance criteria were observed. The structural performance criterion was met. Economic growth has been higher than envisaged, and inflation has decelerated more rapidly than programmed. As expected, the ...

  3. Enhanced oil recovery by improved waterflooding. Fourth annual report, October 1980-September 1981. [Illinois

    Energy Technology Data Exchange (ETDEWEB)

    Craig, F.F. III; Passman, F.J.; Burtch, F.W.

    1982-05-01

    Energy Resourcs Co. Inc., and its subcontractor Elf Aquitaine Oil and Gas Company are conducting a 100-acre pilot polymer flood in the Storms Pool Field near Carmi, in White County, Illinois. The project is a cost-sharing venture with the United States Department of Energy (DOE). Preparation for the polymer flood began in September 1977, and the project is scheduled for completion in December 1983. This report reviews progress during the fourth year of performance (October 1980 through September 1981). The Storms Pool, once highly productive, has yielded over 12 million barrels of oil from the Waltersburg formation since its discovery in 1939. The field has been waterflooded for over 20 years and is now largely in stripper production with high watercuts at most producing wells. Material balance and recent electric logs indicate, however, that there is a substantial volume of movable oil still in place, presumably bypassed by the inefficient waterflood. The polymer flood is intended to improve the sweep efficiency, showing that the engineering, management, and financial resources required for such tertiary techniques can be applied to similar fields that might otherwise be abandoned for lack of investment by parties knowledgeable in enhanced oil technology. Preflush injection and polymer injection were both initiated during this period with total polymer injection now standing at 179,453 barrels (or about 6% pore volume). Laboratory testing has continued throughout the year with the emphasis being on field support (troubleshooting field problems and monitoring the field injection and production systems). No evidence of polymer break-through has been detected at the production wells. Details of the interference testing program and the radiotracer study executed during this period are also presented.

  4. Environmental surveillance data report for the fourth quarter of 1986

    Energy Technology Data Exchange (ETDEWEB)

    1987-03-01

    The Department of Environmental Management (DEM) within the Environmental and Occupational Safety Division (E and OS) at the Oak Ridge National Laboratory (ORNL) is responsible for environmental surveillance to: (1) assure compliance with all Federal, State, and DOE requirements for the prevention, control, and abatement of environmental pollution; (2) monitor the adequacy of containment and effluent controls; and (3) assess impacts of releases from ORNL facilities on the environment. To comply with these objectives, both monitoring and sampling of environmental constituents is performed. The surveillance program for 1986 includes sampling and monitoring of air, water from surface streams and point sources, groundwater, fish, grass, soil, and milk for radioactive nonradioactive materials. Surveillance points are located on-site to quantify discharges from ORNL facilities, and off-site to determine public exposures and to establish background reference levels. This data report provides Laboratory and Central Management personnel with the most recent information on environmental conditions.

  5. Bioética, violência e desigualdade: as biociências e a constituição do biopoder Bioethics, violence and inequality: the biosciences and the conquest of biopower

    Directory of Open Access Journals (Sweden)

    Hélder Boska de Moraes Sarmento

    2008-12-01

    Full Text Available A sociedade contemporânea está atravessada por contradições e paradoxos, dentre os quais vale destacar a relação entre a alta tecnologia e, a pior situação humana, a miséria. Resultado das escolhas éticas e políticas desta era tecnológica, vive-se em situações de fronteira, nas quais as biociências desempenham papel central, tanto no volume de conhecimentos gerados, como na utilização de seus resultados, que, sem controle social, ampliam desigualdades. O objetivo deste artigo é demonstrar o quanto as biociências articulam-se com o desenvolvimento científico dos países inovadores de tecnologia, criando uma nova relação de poder, violento e desigual para os que apenas a consomem, denominado de biopoder. Daí a necessidade de uma bioética crítica capaz de empreender reflexões sobre os procedimentos técnicos, os fundamentos da atividade científica, sua aplicabilidade e relação com o mercado, oportunizando uma 'ponte' na tomada de decisões para que a própria ciência não se torne um obstáculo à democracia.Contemporary society is rife with contradictions and paradoxes, among which stand out the relationship between high technology and the worst human situation, poverty. The result of ethical and political choices of this technological era, we experience frontier situations, in which the biosciences play a central role, both in the volume of knowledge generated, as well as in the use of their results which, without social control, broaden inequalities. The objective of this article is to demonstrate the degree to which the biosciences are articulated with the scientific development of the countries that innovate technologies, creating a new relationship of power, which is violent and unequal for those who only consume, denominated biopower. This creates a need for a critical bioethics that is capable of reflecting on the technical procedures, the bases of scientific activity and their applicability and relation with

  6. PREFACE: Fourth Meeting on Constrained Dynamics and Quantum Gravity

    Science.gov (United States)

    Cadoni, Mariano; Cavaglia, Marco; Nelson, Jeanette E.

    2006-04-01

    The formulation of a quantum theory of gravity seems to be the unavoidable endpoint of modern theoretical physics. Yet the quantum description of the gravitational field remains elusive. The year 2005 marks the tenth anniversary of the First Meeting on Constrained Dynamics and Quantum Gravity, held in Dubna (Russia) due to the efforts of Alexandre T. Filippov (JINR, Dubna) and Vittorio de Alfaro (University of Torino, Italy). At the heart of this initiative was the desire for an international forum where the status and perspectives of research in quantum gravity could be discussed from the broader viewpoint of modern gauge field theories. Since the Dubna meeting, an increasing number of scientists has joined this quest. Progress was reported in two other conferences in this series: in Santa Margherita Ligure (Italy) in 1996 and in Villasimius (Sardinia, Italy) in 1999. After a few years of ``working silence'' the time was now mature for a new gathering. The Fourth Meeting on Constrained Dynamics and Quantum Gravity (QG05) was held in Cala Gonone (Sardinia, Italy) from Monday 12th to Friday 16th September 2005. Surrounded by beautiful scenery, 100 scientists from 23 countries working in field theory, general relativity and related areas discussed the latest developments in the quantum treatment of gravitational systems. The QG05 edition covered many of the issues that had been addressed in the previous meetings and new interesting developments in the field, such as brane world models, large extra dimensions, analogue models of gravity, non-commutative techniques etc. The format of the meeting was similar to the previous ones. The programme consisted of invited plenary talks and parallel sessions on cosmology, quantum gravity, strings and phenomenology, gauge theories and quantisation and black holes. A major goal was to bring together senior scientists and younger people at the beginning of their scientific career. We were able to give financial support to both

  7. Environmental surveillance data report for the fourth quarter of 1990

    Energy Technology Data Exchange (ETDEWEB)

    Goldberg, P.Y.; Horwedel, B.M.; Loffman, R.S.; Osborne-Lee, A.E.; Powell, M.R.; Stevens, M.M.; Tardiff, M.F.; Valentine, C.K.; Wolf, D.A.

    1992-01-01

    The Environmental Surveillance and Protection Section within the Office of Environmental and Health Protection at the Oak Ridge National Laboratory (ORNL) is responsible for the development and implementation of an environmental program to (1) ensure compliance with all federal, state, and Department of Energy (DOE) reporting requirements to quantitatively demonstrate prevention, control, and abatement of environmental pollution; (2) monitor the adequacy of containment and effluent controls; and (3) assess impacts of releases from ORNL facilities on the environment. Environmental monitoring, as defined by Draft DOE Order 5400.6, consists of two major activities: effluent monitoring and environmental surveillance. Effluent monitoring is the collection and analysis of sample or measurements of liquid and gaseous effluents. Environmental surveillance is the collection and analysis of samples, or direct measurements, of air, water, soil, foodstuff, biota, and other media from DOE sites and their environs. Monthly or quarterly summaries are presented in this report for each media sampled. All data are rounded to two significant digits. The summary tables generally give the number of samples collected during the period and the maximum, minimum, average, and standard error of the mean (SE) values of parameters for which determinations were made.

  8. Applied Meteorology Unit (AMU) Quarterly Report Fourth Quarter FY-13

    Science.gov (United States)

    Bauman, William; Crawford, Winifred; Watson, Leela; Shafer, Jaclyn; Huddleston, Lisa

    2013-01-01

    Ms. Shafer completed the task to determine relationships between pressure gradients and peak winds at Vandenberg Air Force Base (VAFB), and began developing a climatology for the VAFB wind towers; Dr. Huddleston completed the task to develop a tool to help forecast the time of the first lightning strike of the day in the Kennedy Space Center (KSC)/Cape Canaveral Air Force Station (CCAFS) area; Dr. Bauman completed work on a severe weather forecast tool focused on the Eastern Range (ER), and also developed upper-winds analysis tools for VAFB and Wallops Fl ight Facility (WFF); Ms. Crawford processed and displayed radar data in the software she will use to create a dual-Doppler analysis over the east-central Florida and KSC/CCAFS areas; Mr. Decker completed developing a wind pairs database for the Launch Services Program to use when evaluating upper-level winds for launch vehicles; Dr. Watson continued work to assimilate observational data into the high-resolution model configurations she created for WFF and the ER.

  9. World Perspective Case Descriptions on Educational Programs for Adults: India.

    Science.gov (United States)

    Jayagopal, R.; Burns, E. P.

    Four adult education programs being conducted in India are described in the case studies in this packet. Two of the projects involve literacy; the third promotes literacy as one part of its community development program, and the fourth trains workers in hotel management and catering technology. The literacy programs are (1) development of a…

  10. 75 FR 9638 - Surface Transportation Project Delivery Pilot Program; Caltrans Audit Report

    Science.gov (United States)

    2010-03-03

    ... the fourth audit report in a Federal Register Notice published on December 23, 2009, at 74 FR 68308... the fourth audit report in a Federal Register Notice published December 22, 2009, at 74 FR 68308. The... Federal Highway Administration Surface Transportation Project Delivery Pilot Program; Caltrans...

  11. Selected papers from the Fourth Annual q-bio Conference on Cellular Information Processing.

    Science.gov (United States)

    Nemenman, Ilya; Faeder, James R; Hlavacek, William S; Jiang, Yi; Wall, Michael E; Zilman, Anton

    2011-10-01

    This special issue consists of 11 original papers that elaborate on work presented at the Fourth Annual q-bio Conference on Cellular Information Processing, which was held on the campus of St John's College in Santa Fe, New Mexico, USA, 11-14 August 2010. Now in its fourth year, the q-bio conference has changed considerably over time. It is now well established and a major event in systems biology. The 2010 conference saw attendees from all continents (except Antarctica!) sharing novel results and participating in lively discussions at both the oral and poster sessions. The conference was oversubscribed and grew to 27 contributed talks, 16 poster spotlights and 137 contributed posters. We deliberately decreased the number of invited speakers to 21 to leave more space for contributed presentations, and the attendee feedback confirmed that the choice was a success. Although the q-bio conference has grown and matured, it has remained true to the original goal of being an intimate and dynamic event that brings together modeling, theory and quantitative experimentation for the study of cell regulation and information processing. Funded in part by a grant from NIGMS and by DOE funds through the Los Alamos National Laboratory Directed Research and Development program, the conference has continued to exhibit youth and vigor by attracting (and partially supporting) over 100 undergraduate, graduate and postdoctoral researchers. The associated q-bio summer school, which precedes the conference each year, further emphasizes the development of junior scientists and makes q-bio a singular event in its impact on the future of quantitative biology. In addition to an increased international presence, the conference has notably diversified its demographic representation within the USA, including increased participation from the southeastern corner of the country. One big change in the conference this year is our new publication partner, Physical Biology. Although we are very

  12. Constraining a fourth generation of quarks: non-perturbative Higgs boson mass bounds

    CERN Document Server

    Bulava, John; Nagy, Attila

    2013-01-01

    We present a non-perturbative determination of the upper and lower Higgs boson mass bounds with a heavy fourth generation of quarks from numerical lattice computations in a chirally symmetric Higgs-Yukawa model. We find that the upper bound only moderately rises with the quark mass while the lower bound increases significantly, providing additional constraints on the existence of a straight-forward fourth quark generation. We examine the stability of the lower bound under the addition of a higher dimensional operator to the scalar field potential using perturbation theory, demonstrating that it is not significantly altered for small values of the coupling of this operator. For a Higgs boson mass of $\\sim125\\mathrm{GeV}$ we find that the maximum value of the fourth generation quark mass is $\\sim300\\mathrm{GeV}$, which is already in conflict with bounds from direct searches.

  13. Blasius flow and heat transfer of fourth-grade fluid with slip

    Institute of Scientific and Technical Information of China (English)

    B SAHOO; S PONCET

    2013-01-01

    This investigation deals with the effects of slip, magnetic field, and non-Newtonian flow parameters on the flow and heat transfer of an incompressible, electrically conducting fourth-grade fluid past an infinite porous plate. The heat transfer analysis is carried out for two heating processes. The system of highly non-linear differential equations is solved by the shooting method with the fourth-order Runge-Kutta method for moderate values of the parameters. The effective Broyden technique is adopted in order to improve the initial guesses and to satisfy the boundary conditions at infinity. An exceptional cross-over is obtained in the velocity profile in the presence of slip. The fourth-grade fluid parameter is found to increase the momentum boundary layer thickness, whereas the slip parameter substantially decreases it. Similarly, the non-Newtonian fluid parameters and the slip have opposite effects on the thermal boundary layer thickness.

  14. Conservative fourth-order time integration of non-linear dynamic systems

    DEFF Research Database (Denmark)

    Krenk, Steen

    2015-01-01

    An energy conserving time integration algorithm with fourth-order accuracy is developed for dynamic systems with nonlinear stiffness. The discrete formulation is derived by integrating the differential state-space equations of motion over the integration time increment, and then evaluating the...... direct fourth-order accurate representation of the original differential equations. This fourth-order form is energy conserving for systems with force potential in the form of a quartic polynomial in the displacement components. Energy conservation for a force potential of general form is obtained by...... resulting time integrals of the inertia and stiffness terms via integration by parts. This process introduces the time derivatives of the state space variables, and these are then substituted from the original state-space differential equations. The resulting discrete form of the state-space equations is a...

  15. Isolated fourth ventricular cysticercus cyst: MR imaging in 4 cases with short literature review

    Directory of Open Access Journals (Sweden)

    Singh S

    2003-07-01

    Full Text Available We describe the magnetic resonance imaging (MRI signal characteristics of isolated (solitary lesion intra fourth ventricular cysticercus cyst in 4 patients who clinically presented with obstructive hydrocephalus. All patients had routine MRI sequences (T1, T2, & proton density-weighted imaging, Fluid Attenuation Inversion Recovery (FLAIR, and post-gadolinium imaging followed by cerebrospinal fluid (CSF flow study. It revealed a CSF signal intensity (on all pulse sequences, intra fourth ventricular cyst with a nidus (scolex, and wall enhancement. On T1-weighted and FLAIR images, the cyst wall and nidus (scolex were seen in 3 cases, which were not seen in other routine sequences. The CSF flow study showed the intraluminal nature of the cyst. The MRI features suspected a cysticercus cyst, and per-operative findings and histopathological examination confirmed the diagnosis. The review of literature of the intra fourth ventricular cyst is briefly discussed.

  16. Heterotopic Pancreatic Neoplasm Presenting as an Obstructing Mass at the Fourth Portion of the Duodenum

    Directory of Open Access Journals (Sweden)

    Cameron Stock

    2011-05-01

    Full Text Available Context Heterotopic pancreatic adenocarcinoma is a rare finding at laparotomy. Herein we present the case of a patient with malignant transformation of a heterotopic pancreas located in the fourth portion of the duodenum. Case report A 79-year-old woman was admitted to the surgery service with complaints of early satiety and abdominal fullness progressively worsening over the previous two years. A computed tomography scan of the abdomen and an upper endoscopy revealed an obstructing mass in the fourth portion of the duodenum, biopsies were negative for carcinoma. A segmentectomy of the third and fourth portions of the duodenum was performed. Post-operative histology revealed malignant transformation of a heterotopic pancreas. The patient had an unremarkable postoperative recovery and was discharged home. Conclusion In evaluation of patients with distal duodenal masses, we report that heterotopic pancreatic neoplasms should be considered in the differential diagnosis.

  17. Treatment of Complications after Distraction Osteogenesis for Brachymetatarsia of the Fourth Metatarsal.

    Science.gov (United States)

    Hamada, Mariko; Sakamoto, Yoshiaki; Nagasao, Tomohisa; Kishi, Kazuo

    2016-07-01

    Congenital brachymetatarsia most commonly involves the fourth ray and may be combined with metacarpal shortening. Numerous reports have demonstrated the usefulness of gradual lengthening of the metatarsals. However, very few studies have investigated methods of recovering the lost regenerative bone. The patient was a 16-year-old girl with bilateral brachymetatarsia of the fourth metatarsal. After a long consolidation period after gradual lengthening of the fourth metatarsal by 20 mm, the patient had an hourglass-shaped regenerated bone. Therefore, we grafted a bioabsorbable hydroxyapatite and collagen composite. Six months after the surgery, well-regenerated bone could be recognized on radiographic evaluation and was resistant to refracture. Callus distraction is a method that aims to avoid donor site morbidity. The strength of artificial bone is often a problem. Bioabsorbable hydroxyapatite and collagen composite compensates for the lack of regenerated bone and distraction gap and prevents refracture, thus preventing complications after metatarsal distraction. PMID:27536496

  18. Fourth-order partial differential equation noise removal on welding images

    International Nuclear Information System (INIS)

    Partial differential equation (PDE) has become one of the important topics in mathematics and is widely used in various fields. It can be used for image denoising in the image analysis field. In this paper, a fourth-order PDE is discussed and implemented as a denoising method on digital images. The fourth-order PDE is solved computationally using finite difference approach and then implemented on a set of digital radiographic images with welding defects. The performance of the discretized model is evaluated using Peak Signal to Noise Ratio (PSNR). Simulation is carried out on the discretized model on different level of Gaussian noise in order to get the maximum PSNR value. The convergence criteria chosen to determine the number of iterations required is measured based on the highest PSNR value. Results obtained show that the fourth-order PDE model produced promising results as an image denoising tool compared with median filter

  19. Fourth-order partial differential equation noise removal on welding images

    Energy Technology Data Exchange (ETDEWEB)

    Halim, Suhaila Abd; Ibrahim, Arsmah; Sulong, Tuan Nurul Norazura Tuan [Center of Mathematics Studies, Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor. Malaysia (Malaysia); Manurung, Yupiter HP [Advanced Manufacturing Technology Center, Faculty of Mechanical Engineering, Universiti TEknologi MARA, 40450 Shah Alam, Selangor. Malaysia (Malaysia)

    2015-10-22

    Partial differential equation (PDE) has become one of the important topics in mathematics and is widely used in various fields. It can be used for image denoising in the image analysis field. In this paper, a fourth-order PDE is discussed and implemented as a denoising method on digital images. The fourth-order PDE is solved computationally using finite difference approach and then implemented on a set of digital radiographic images with welding defects. The performance of the discretized model is evaluated using Peak Signal to Noise Ratio (PSNR). Simulation is carried out on the discretized model on different level of Gaussian noise in order to get the maximum PSNR value. The convergence criteria chosen to determine the number of iterations required is measured based on the highest PSNR value. Results obtained show that the fourth-order PDE model produced promising results as an image denoising tool compared with median filter.

  20. Fourth Ventricular Schwannoma: Identical Clinicopathologic Features as Schwann Cell-Derived Schwannoma with Unique Etiopathologic Origins

    Directory of Open Access Journals (Sweden)

    Tiffany R. Hodges

    2011-01-01

    Full Text Available Background. To our knowledge, this is the sixth reported case in the literature of fourth ventricular schwannoma. The etiology and natural history of intraventricular schwannomas is not well understood. A thorough review of potential etiopathogenic mechanisms is provided in this case report. Case Description. A 69-year-old man presented with an incidentally found fourth ventricular tumor during an evaluation for generalized weakness, gait instability, and memory disturbance. Magnetic resonance imaging (MRI revealed a heterogeneously enhancing lesion in the fourth ventricle. A suboccipital craniotomy was performed to resect the lesion. Histopathological examination confirmed the diagnosis of schwannoma (WHO grade I. Conclusions. Schwannomas should be considered in the differential diagnosis of intraventricular tumors. Although the embryologic origins may be different from nerve sheath-derived schwannomas, the histologic, clinical, and natural history appear identical and thus should be managed similarly.

  1. Lattice Boltzmann method for bosons and fermions and the fourth order Hermite polynomial expansion

    CERN Document Server

    Coelho, Rodrigo C V; Doria, M M; Pereira, R M; Aibe, Valter Yoshihiko

    2013-01-01

    The Boltzmann equation with the Bhatnagar-Gross-Krook collision operator is considered for the Bose-Einstein and Fermi-Dirac equilibrium distribution functions. We show that the expansion of the microscopic velocity in terms of Hermite polynomials must be carried until the fourth order to correctly describe the energy equation. The viscosity and thermal coefficients, previously obtained by J.Y. Yang et al through the Uehling-Uhlenbeck approach, are also derived here. Thus the construction of a lattice Boltzmann method for the quantum fluid is possible provided that the Bose-Einstein and Fermi-Dirac equilibrium distribution functions are expanded until fourth order in the Hermite polynomials.

  2. Designs of two and three cavity gyroklystron amplifiers operating at fundamental, second, and fourth harmonics

    Energy Technology Data Exchange (ETDEWEB)

    Saraph, G.P.; Lawson, W.; Latham, P.E.; Cheng, J.; Castle, M. [Univ. of Maryland, College Park, MD (United States)] [and others

    1995-12-31

    Two and three cavity, co-axial, relativistic gyroklystron amplifiers are investigated for driving future linear colliders. Detailed designs of gyroklystrons operating at fundamental (8.568 GHz), second (17.136 GHz), and fourth harmonic (34.272 GHz) frequencies are presented. Numerical simulations predict over 40% efficiency, 45-50 dB gain, and 100-160 MW power level for the fundamental and second harmonic designs. It is shown that introducing a penultimate (buncher) cavity significantly improves efficiency and gain of the second harmonic amplifier. The fourth harmonic design has a modest efficiency of 10-15%.

  3. Designs of two and three cavity gyroklystron amplifiers operating at fundamental, second, and fourth harmonics

    International Nuclear Information System (INIS)

    Two and three cavity, co-axial, relativistic gyroklystron amplifiers are investigated for driving future linear colliders. Detailed designs of gyroklystrons operating at fundamental (8.568 GHz), second (17.136 GHz), and fourth harmonic (34.272 GHz) frequencies are presented. Numerical simulations predict over 40% efficiency, 45-50 dB gain, and 100-160 MW power level for the fundamental and second harmonic designs. It is shown that introducing a penultimate (buncher) cavity significantly improves efficiency and gain of the second harmonic amplifier. The fourth harmonic design has a modest efficiency of 10-15%

  4. Total Field and Scattered Field Technique for Fourth-Order Symplectic Finite Difference Time Domain Method

    Institute of Scientific and Technical Information of China (English)

    SHA Wei; HUANG Zhi-Xiang; WU Xian-Liang; CHEN Ming-Sheng

    2006-01-01

    Using symplectic integrator propagator, a three-dimensional fourth-order symplectic finite difference time domain (SFDTD) method is studied, which is of the fourth order in both the time and space domains. The method is nondissipative and can save more memory compared with the traditional FDTD method. The total field and scattered field (TF-SF) technique is derived for the SFDTD method to provide the incident wave source conditions. The bistatic radar cross section (RCS) of a dielectric sphere is computed by using the SFDTD method for the first time. Numerical results suggest that the SFDTD algorithm acquires better stability and accuracy compared with the traditional FDTD method.

  5. Calculation of the fourth-rank molecular hypermagnetizability of some small molecules

    Science.gov (United States)

    Pagola, G. I.; Caputo, M. C.; Ferraro, M. B.; Lazzeretti, P.

    2004-05-01

    A computational scheme has been developed within the framework of Rayleigh-Schrödinger perturbation theory to evaluate nonlinear interaction energy contributions for a molecule in the presence of an external spatially uniform, time-independent magnetic field. Terms connected with the fourth power of the perturbing field, representing the fourth-rank hypermagnetizabilities of five small molecules, have been evaluated at the coupled Hartree-Fock level of accuracy within the conventional common-origin approach. Gaugeless basis sets of increasing size and flexibility have been employed in a numerical test, adopting two different coordinate systems to estimate the degree of convergence of theoretical tensor components.

  6. Sum rules for invariance of the fourth-rank hypermagnetisability in a gauge translation

    Science.gov (United States)

    Pagola, G. I.; Caputo, M. C.; Ferraro, M. B.; Lazzeretti, P.

    2005-06-01

    The conditions for invariance in a gauge translation of the fourth-rank molecular hypermagnetisability tensor, introduced to rationalize the cubic response of a molecule in the presence of an external magnetic field, are discussed in terms of quantum mechanical sum rules. Eight relationships, connecting electric dipole polarisability, polarisability of magnetisability, and other third- and fourth-rank tensors that can be regarded as intrinsic molecular properties tout court, have been obtained. Numerical tests have been carried out to determine the Hartree-Fock limit for the sum-rules in a set of small molecules.

  7. Possible discovery channel for fourth chiral family up-quark at the LHC

    CERN Document Server

    Beser, S; Oner, B B; Sultansoy, S

    2016-01-01

    Resonant production of fourth chiral family up quark at the LHC via anomalous interactions have been analyzed. It is shown that search for resonances in W^{+}b final states could lead to discovery of the fourth chiral family and simultaneously determine scale of the new physics, presumabely related to the quark and lepton compositeness. Obtained results emphasize an importance of W-leading jet invariant mass analysis in search for W+jets final states at the LHC, both with and without b-tagging.

  8. A fourth paradigm?  Some thoughts on atheism in Old Testament Scholarship

    OpenAIRE

    Jaco Gericke

    2012-01-01

    In recent decades, OT scholarship has witnessed the emergence of undercurrents of what may be called a fourth paradigm. In contrast to the three familiar faith-based "paradigms," this one is essentially atheistic. Scholars working in the fourth paradigm do not believe that the Bible is the Word of God, God's Word in human speech, or human words about God. On this view, the texts are just human words and have no transcendental signified. In addition, a plurality of atheistic approaches to the ...

  9. Orthographic performances in a portuguese primary school: A longitudinal study in third and fourth grades

    OpenAIRE

    2009-01-01

    This study aims to understand if children’s spelling errors vary according to their orthographic performances and their grade level. It also aims to understand the way in which children’s awareness of orthography rules relates to their performance. The participants were forty-three children (24 boys and 19 girls) attending the third grade and, the following year, the fourth grade in a Lisbon public school. They were given a spelling task in third grade and again in fourth grade an...

  10. Analysis of 1/2+ baryon states containing fourth-family quarks from QCD sum rules

    Institute of Scientific and Technical Information of China (English)

    YOU Fu-Yi; WANG Zhi-Gang; WAN Shao-Long

    2012-01-01

    When the fourth generation of quarks have sufficiently small mixing with ordinary standard-model quarks,the hadrons made up from these quarks can be long-lived enough.We analyze the 1/2+ baryon statescontaining fourth-generation quarks and standard-model quarks,i.e.the charm or bottom quarks,in the QCD sum rules approach.Considering the perturbative and two gluon condensate contributions in the calculation,we give the numerical results of the masses and pole residues.

  11. Symmetries of a class of nonlinear fourth order partial differential equations

    OpenAIRE

    Clarkson, Peter A.; Priestley, Thomas J.

    1998-01-01

    In this paper we study symmetry reductions of a class of nonlinear fourth order partial differential equations \\be u_{tt} = \\left(\\kappa u + \\gamma u^2\\right)_{xx} + u u_{xxxx} +\\mu u_{xxtt}+\\alpha u_x u_{xxx} + \\beta u_{xx}^2, \\ee where $\\alpha$, $\\beta$, $\\gamma$, $\\kappa$ and $\\mu$ are constants. This equation may be thought of as a fourth order analogue of a generalization of the Camassa-Holm equation, about which there has been considerable recent interest. Further equation (1) is a ``Bo...

  12. Forward-Backward Asymmetries of Fourth Family Fermions Through the Z' Models at Linear Colliders

    OpenAIRE

    Ari, V.; Cakir, O.; Cetinkaya, V.

    2011-01-01

    We investigate the forward-backward asymmetries in the pair production of fourth family fermions through the new Z' interactions in the e+e- collisions. The Z' boson having family universal couplings can contribute to the pair production of fourth family fermions via the s-channel exchange. The linear colliders will provide a clean environment for the physics of Z' boson to measure its couplings precisely. The effects of the Z' boson to the asymmetries are shown to be important in some parame...

  13. MONOMIAL (1, 0,-1 MATRIX OF THE FOURTH ORDER, ISOMORPHIC TO THE GROUP OF QUATERNIONS

    Directory of Open Access Journals (Sweden)

    V. V. Kravets

    2009-07-01

    Full Text Available A set of direct and inverse elements are examined and compared with a four-dimensional orthonormal basis. The aggregate of even substitutions of fourth power as a product of two transpositions are formed on this finite set. The finite set of substitutions is represented by monomial (1, 0, –1-matrices of fourth order. An isomorphism of quaternion group and two noncommutative subgroups of eighth order is determined. Properties of four aggregates of basic matrices, corresponding to quaternion matrices, are examined.

  14. Forward-Backward Asymmetries of Fourth Family Fermions Through the Z' Models at Linear Colliders

    CERN Document Server

    Ari, V; Cetinkaya, V

    2011-01-01

    We investigate the forward-backward asymmetries in the pair production of fourth family fermions through the new Z' interactions in the e^{+}e^{-} collisions. The Z' boson having family universal couplings can contribute to the pair production of fourth family fermions via the s-channel exchange. The linear colliders provide a clean environment for the physics of Z' boson to measure its couplings precisely. The effects of the Z' boson to the asymmetries are shown to be important in some parameter regions for different Z' models. The sensitivities to the family universal couplings has been estimated for different collider energies and projected luminosities.

  15. Limits on fourth family neutrinos from searches for β decay and dark matter

    International Nuclear Information System (INIS)

    This paper states that while accelerator limits on fourth family neutrinos are well known, little-known nonaccelerator experiments also set useful limits on these particles, in some respect better than those yet reached by accelerators. The particular non-accelerator experiments considered here are the search for neutrinoless double beta decay (ov) and for dark matter (DM). These are both powerful means of looking for physics beyond the Standard Model, and hence they also constrain the fourth family. An is given to double beta decay, followed by a discussion of the experimental result, and concluding with its interpretation. The search for DM is then presented

  16. Effects of intra-fourth ventricle injection of crocin on capsaicin-induced orofacial pain in rats

    OpenAIRE

    Esmaeal Tamaddonfard; Sina Tamaddonfard; Salar Pourbaba

    2015-01-01

    Objectives: Crocin, a constituent of saffron and yellow gardenia, possesses anti-nociceptive effects. In the present study, we investigated the effects of intra-fourth ventricle injection of crocin in a rat model of orofacial pain. The contribution of opioid system was assessed using intra-fourth ventricle injection of naloxone, an opioid receptor antagonist. Materials and Methods: A guide cannula was implanted into the fourth ventricle of brain in anesthetized rats. Orofacial pain was induce...

  17. Status of the Combined Third and Fourth NGNP Fuel Irradiations In the Advanced Test Reactor

    Energy Technology Data Exchange (ETDEWEB)

    S. Blaine Grover; David A. Petti; Michael E. Davenport

    2013-07-01

    The United States Department of Energy’s Next Generation Nuclear Plant (NGNP) Advanced Gas Reactor (AGR) Fuel Development and Qualification Program is irradiating up to seven low enriched uranium (LEU) tri-isotopic (TRISO) particle fuel (in compact form) experiments in the Advanced Test Reactor (ATR) located at the Idaho National Laboratory (INL). These irradiations and fuel development are being accomplished to support development of the next generation reactors in the United States. The experiments will be irradiated over the next several years to demonstrate and qualify new TRISO coated particle fuel for use in high temperature gas reactors. The goals of the experiments are to provide irradiation performance data to support fuel process development, to qualify fuel for normal operating conditions, to support development and validation of fuel performance and fission product transport models and codes, and to provide irradiated fuel and materials for post irradiation examination (PIE) and safety testing. The experiments, which will each consist of several independent capsules, will be irradiated in an inert sweep gas atmosphere with individual on-line temperature monitoring and control of each capsule. The sweep gas will also have on-line fission product monitoring on its effluent to track performance of the fuel in each individual capsule during irradiation. The first experiment (designated AGR-1) started irradiation in December 2006 and was completed in November 2009. The second experiment (AGR-2) started irradiation in June 2010 and is currently scheduled to be completed in September 2013. The third and fourth experiments have been combined into a single experiment designated (AGR-3/4), which started its irradiation in December 2011 and is currently scheduled to be completed in April 2014. Since the purpose of this combined experiment is to provide data on fission product migration and retention in the NGNP reactor, the design of this experiment is

  18. A Comparison of Concrete and Virtual Manipulative Use in Third- and Fourth-Grade Mathematics

    Science.gov (United States)

    Burns, Barbara A.; Hamm, Ellen M.

    2011-01-01

    The primary purpose of this classroom experiment was to examine the effectiveness of concrete (hands-on) manipulatives as compared with virtual (computer-based) manipulatives on student review of fraction concepts in third grade and introduction of symmetry concepts in fourth grade. A pretest-posttest design was employed with a sample of 91…

  19. Internet-based Real Time Language Education: Towards a Fourth Generation Distance Education.

    Science.gov (United States)

    Wang, Yuping; Sun, Chengzheng

    2001-01-01

    Through examination of the development of distance education for foreign languages, puts forth a theory on the emergence of a fourth generation of distance language education, challenging the generally accepted three-generation theory. Argues that with the use of Internet-based real time technology, distance language learning becomes synchronous…

  20. Distributed Use of a Fourth-Generation Language at Arizona State University.

    Science.gov (United States)

    Brown, Jana; O'Connell, John

    1989-01-01

    The acquisition and implementation at Arizona State University of a fourth-generation language product to facilitate end-user access to institutional data are described. Some problems encountered are included, as are discussions of training and security considerations. (Author/MLW)

  1. Cotton School Tells Us More--The Fourth COTTON USA Cotton School Convened in Qingdao

    Institute of Scientific and Technical Information of China (English)

    By Wang Ting

    2012-01-01

    Since the year of 2006, Cotton Council International has already convened the Cotton School for three times in China. This year, in 2012, CCI held the Cotton School in the city of Qingdao for the fourth time, generously shared with international buyers, especially the Chinese domestic purchases, the knowledge of qualified U.S. cotton.

  2. Teaching Fourth and Fifth Graders to Evaluate Information Sources during Text Comprehension

    Science.gov (United States)

    Macedo-Rouet, Monica; Braasch, Jason L. G.; Britt, M. Anne; Rouet, Jean-Francois

    2013-01-01

    In two experiments, we examined fourth and fifth graders' comprehension of the source of information in texts presenting controversial issues. In Experiment 1, participants read short texts in which two people presented different arguments regarding an issue. Participants identified who said what and evaluated each source's knowledge of the issue.…

  3. Study of cysticercosis in the fourth ventricle by CSF cinema MRI

    International Nuclear Information System (INIS)

    Purpose: To evaluate the diagnostic value of cysticercosis in the fourth ventricle by CSF cinema MRI. Materials and methods: Nine patients with intraventricular cysticercosis in the fourth ventricle were studied. The diagnosis was confirmed by surgery in all cases. All of these patients were examined systematically before the operation and studied with CSF cinema MRI in mid sagittal section and finger-gated scan technique. Results: (1) The path of CSF flow was directly displayed. All cysticercosis presented as a filling defect, and a cyst with a smooth wall. (2) The ventricular compliance was normal in cysticercosis. (3) The cysticercosis in active stage was free in the fourth ventricle and could be rolled over, its shape might change slightly within a cardiac cycle. In the degenerative stage, its wall could adhere to the ependyma and obstruct the CSF flow. Conclusion: CSF cinema MRI can demonstrate the degree of obstruction and pattern of CSF flow in cysticercosis of the fourth ventricle, thereby providing useful information for proper management

  4. Attitude of fourth year Doctor of Pharmacy students towards pharmacy profession and their career preferences

    Directory of Open Access Journals (Sweden)

    Salman Saad

    2012-01-01

    Conclusion: Fourth year students believed that pharmacy education and practice affect the health care system. Their favorite career areas were clinical pharmacy, industrial pharmacy, and hospital pharmacy. Personal interest was the most important factor involved in this selection. Most of them were interested in pharmacy-related research activities.

  5. Test Review: Wechsler Preschool and Primary Scale of Intelligence, Fourth Edition: Canadian

    Science.gov (United States)

    Soares, Melissa A.; McCrimmon, Adam W.

    2013-01-01

    The Wechsler Preschool and Primary Scale of Intelligence-Fourth Edition: Canadian (WPPSI-IVCDN; Wechsler, 2012), published by NCS Pearson, is a newly updated, individually administered measure of cognitive intelligence for children aged 2:6 through 7:7. Suitable for educational, clinical, and research settings, the purposes of the WPPSI-IVCDN are…

  6. HIGHLY NONCONFORMING FINITE ELEMENT APPROXIMATIONS FOR A FOURTH ORDER VARIATIONAL INEQUALITY WITH CURVATURE OBSTACLE

    Institute of Scientific and Technical Information of China (English)

    SHI Dongyang; CHEN Shaochun; Ichiro Hagiwara

    2005-01-01

    The purpose of this paper is to obtain the optimal error estimates of O(h) for the highly nonconforming elements to a fourth order variational inequality with curvature obstacle in a convex domain with simply supported boundary by using the novel function splitting method and the orthogonal properties of the nonconforming finite element spaces.Morley's element approximation is our special case.

  7. Nodal Solutions for a Class of Fourth-Order Two-Point Boundary Value Problems

    OpenAIRE

    Xu Jia; Han XiaoLing

    2010-01-01

    We consider the fourth-order two-point boundary value problem , , , where is a parameter, is given constant, with on any subinterval of , satisfies for all , and , , for some . By using disconjugate operator theory and bifurcation techniques, we establish existence and multiplicity results of nodal solutions for the above problem.

  8. Adenocarcinoma of the third and fourth portions of the duodenum: The capsule endoscopy value

    Science.gov (United States)

    Paquissi, Feliciano Chanana; Lima, Ana Henriqueta Filipe Bunga Pimentel; Lopes, Maria de Fátima do Nascimento Vieira; Diaz, Francisco Viamontes

    2015-01-01

    Primary adenocarcinoma of the small intestine occurs in over 50% of cases in the duodenum. However, its location in the third and fourth duodenal portions occurs rarely and is a diagnostic challenge. The aim of this work is to report an adenocarcinoma of the third and fourth duodenal portions, emphasizing its diagnostic difficulty and the value of video capsule endoscopy. A man, 40 years old, with no medical history, with abdominal discomfort and progressive fatigue, presented four months ago with one episode of moderate melena. The physical examination was normal, except for mucosal pallor. Blood tests were consistent with microcytic, hypochromic iron deficiency anemia with 7.8 g/dL hemoglobin. The upper and lower endoscopy were normal. Additional work-up with video capsule endoscopy showed a polypoid lesion involving the third and fourth portions of the duodenum. Biopsy showed a moderately differentiated adenocarcinoma. Abdominal computed tomography showed a wall thickening from the third duodenal portion to the proximal jejunum, without distant metastasis. The patient underwent segmental resection (distal duodenum and proximal jejunum) with duodenojejunostomy. The surgical specimen histology confirmed the biopsy diagnosis, with transmural infiltration, without nodal involvement. Conclusion: Adenocarcinoma of the third and fourth portions of the duodenum is difficult to diagnose and capsule endoscopy is of great value. PMID:26309371

  9. F-Area Seepage Basins groundwater monitoring report, fourth quarter 1991 and 1991 summary

    International Nuclear Information System (INIS)

    This progress report for fourth quarter 1991 and 1991 summary fro the Savannah River Plant includes discussion on the following topics: description of facilities; hydrostratigraphic units; monitoring well nomenclature; integrity of the monitoring well network; groundwater monitoring data; analytical results exceeding standards; tritium, nitrate, and pH time-trend data; water levels; groundwater flow rates and directions; upgradient versus downgradient results

  10. Polarization modulational instability in a birefringent optical fiber with fourth order dispersion

    Indian Academy of Sciences (India)

    R Ganapathy; V C Kuriakose

    2001-10-01

    We obtain conditions for the occurrence of polarization modulational instability in the anomalous and normal dispersion regimes for the coupled nonlinear Schrödinger equation modelling fourth order dispersion effects when the linearly polarized pump is oriented at arbitrary angles with respect to the slow and fast axes of the birefringent fiber.

  11. Fourth order wave equation in Bhabha-Madhavarao spin-$\\frac{3}{2}$ theory

    CERN Document Server

    Markov, Yu A; Bondarenko, A I

    2016-01-01

    Within the framework of the Bhabha-Madhavarao formalism, a consistent approach to the derivation of a system of the fourth order wave equations for the description of a spin-$\\frac{3}{2}$ particle is suggested. For this purpose an additional algebraic object, the so-called $q$-commutator ($q$ is a primitive fourth root of unity) and a new set of matrices $\\eta_{\\mu}$, instead of the original matrices $\\beta_{\\mu}$ of the Bhabha-Madhavarao algebra, are introduced. It is shown that in terms of the $\\eta_{\\mu}$ matrices we have succeeded in reducing a procedure of the construction of fourth root of the fourth order wave operator to a few simple algebraic transformations and to some operation of the passage to the limit $z \\rightarrow q$, where $z$ is some (complex) deformation parameter entering into the definition of the $\\eta$-matrices. In addition, a set of the matrices ${\\cal P}_{1/2}$ and ${\\cal P}_{3/2}^{(\\pm)}(q)$ possessing the properties of projectors is introduced. These operators project the matrices ...

  12. Comprehension Tools for Teachers: Reading for Understanding from Prekindergarten through Fourth Grade

    OpenAIRE

    Connor, Carol McDonald; Phillips, Beth M.; Kaschak, Michael; Apel, Kenn; Kim, Young-Suk; Al Otaiba, Stephanie; Crowe, Elizabeth C.; Thomas-Tate, Shurita; Johnson, Lakeisha Cooper; Lonigan, Christopher J.

    2014-01-01

    This paper describes the theoretical framework, as well as the development and testing of the intervention, Comprehension Tools for Teachers (CTT), which is composed of eight component interventions targeting malleable language and reading comprehension skills that emerging research indicates contribute to proficient reading for understanding for prekindergarteners through fourth graders. Component interventions target processes considered largely automatic as well as more reflective processe...

  13. Enhancing Argumentative Essay Writing of Fourth-Grade Students with Learning Disabilities

    Science.gov (United States)

    Deatline-Buchman, Andria; Jitendra, Asha K.

    2006-01-01

    A within-subject pretest-posttest comparison design was used to explore the effectiveness of a planning and writing intervention in improving the argumentative writing performance of five fourth-grade students with learning disabilities. Students were taught to collaboratively plan and revise their essays and independently write their essays using…

  14. 77 FR 58209 - Fourth Meeting: RTCA Special Committee 226, Audio Systems and Equipment

    Science.gov (United States)

    2012-09-19

    ... Federal Aviation Administration Fourth Meeting: RTCA Special Committee 226, Audio Systems and Equipment... notice of RTCA Special Committee 226, Audio Systems and Equipment. SUMMARY: The FAA is issuing this... Equipment. DATES: The meeting will be held October 16-18, 2012 from 9 a.m.-5 p.m. ADDRESSES: The...

  15. Maximum principles and bounds in a class of fourth-order uniformly elliptic equations

    International Nuclear Information System (INIS)

    This paper is devoted to a class of fourth-order uniformly elliptic equations posed by Schaefer in 1987. We obtain maximum principles for certain functions, which are defined on solutions of the elliptic equations. The principles are then used to deduce some bounds on important quantities in the physical problems of interest

  16. Anomalous Single Production of the Fourth Generation Quarks at Future $ep$ and $\\gamma p$ Colliders

    CERN Document Server

    Çiftçi, A Kenan

    2009-01-01

    Possible anomalous single productions of the fourth standard model generation up and down type quarks at LHC based ep and γp colliders are studied. Some decay channels are considered. Signatures for signals an d corre- sponding standard model backgrounds are discussed. Discovery limi ts for quark mass and achievable values of anomalous coupling strength are determined

  17. Fourth-Order Interference in Femtosecond Spontaneous Parametric Down-Conversion

    Institute of Scientific and Technical Information of China (English)

    JIANG Yun-Kun; SHI Bao-Sen; LI Jian; FAN Xiao-Feng; GUO Guang-Can

    2000-01-01

    We report a fourth-order interference experiment in which pairs of photons are produced in spontaneous parametric down-conversion pumped by femtosecond pulses interfere in a Hong-Ou-Mandel interferometer. The visibilityof the interference is (64±4)%, exceeding the bound of 50% predicted by classical interference theory.

  18. 75 FR 30899 - Fourth Meeting: RTCA Special Committee 223: Airport Surface Wireless Communications

    Science.gov (United States)

    2010-06-02

    ... Federal Aviation Administration Fourth Meeting: RTCA Special Committee 223: Airport Surface Wireless...: Airport Surface Wireless Communications meeting. SUMMARY: The FAA is issuing this notice to advise the public of a meeting of RTCA Special Committee 223: Airport Surface Wireless Communications. DATES:...

  19. Race and Racism in the South Pacific: An Exploration of the Fourth World.

    Science.gov (United States)

    Staples, Robert

    1983-01-01

    Examines attitudes toward Blacks in South Pacific countries and describes the author's own experiences with Australian Aborigines. Discusses adverse situations, low status, and racial discrimination experienced by Australian Aborigines, New Zealand Maori, and American Blacks as members of the Fourth World (minority groups living in developed…

  20. Do Fraternities and Sororities Still Enhance Socially Responsible Leadership? Evidence from the Fourth Year of College

    Science.gov (United States)

    Hevel, Michael S.; Martin, Georgianna L.; Pascarella, Ernest T.

    2014-01-01

    We use a longitudinal national dataset to explore the effects of fraternity and sorority membership on students' socially responsible leadership in the fourth year of college. Controlling for a variety of potentially confounding variables, we find no net effect. These findings run counter to an earlier study based on the same students that found…

  1. The Linguistic Profiles of Spelling Errors in Fourth, Fifth, and Seventh Grade Students

    Science.gov (United States)

    Wu, Yi-Chieh

    2013-01-01

    The purpose of this study was to investigate the use of linguistic knowledge in spelling by analyzing spelling errors made by 220 students in the fourth, fifth, and seventh grades. A 25-word researcher-designed spelling test with considerations of word frequency, word familiarity, and word type (based on morphological complexity) was administered.…

  2. Cognitive Development of Fourth Graders in a High-Stakes State.

    Science.gov (United States)

    Aagaard, Lola; Boram, Robert

    Jean Piaget's classic theory of cognitive development would imply that the higher-order items on the Kentucky state assessment would only be possible for students well into concrete operations or beginning formal operations. The implication would be that Kentucky fourth graders who are not fully concrete yet may be hitting a developmental ceiling…

  3. Efficient object scatter correction algorithm for third and fourth generation CT scanners

    Energy Technology Data Exchange (ETDEWEB)

    Ohnesorge, B.; Flohr, T.; Klingenbeck-Regn, K. [Siemens Medical Engineering, Dept. CTC 2, Forchheim (Germany)

    1999-04-01

    X-ray photons which are scattered inside the object slice and reach the detector array increase the detected signal and produce image artifacts as ``cupping`` effects in large objects and dark bands between regions of high attenuation. The artifact amplitudes increase with scanned volume or slice width. Object scatter can be reduced in third generation computed tomography (CT) geometry by collimating the detector elements. However, a correction can still improve image quality. For fourth generation CT geometry, only poor anti-scatter collimation is possible and a numeric correction is necessary. This paper presents a correction algorithm which can be parameterized for third and fourth generation CT geometry. The method requires low computational effort and allows flexible application to different body regions by simple parameter adjustments. The object scatter intensity which is subtracted from the measured signal is calculated with convolution of the weighted and windowed projection data with a spatially invariant ``scatter convolution function``. The scatter convolution function is approximated for the desired scanner geometry from pencil beam simulations and measurements using coherent and incoherent differential scatter cross section data. Several examples of phantom and medical objects scanned with third and fourth generation CT systems are discussed. In third generation scanners, scatter artifacts are effectively corrected. For fourth generation geometry with poor anti-scatter collimation, object scatter artifacts are strongly reduced. (orig.) With 7 figs., 1 tab., 8 refs.

  4. Boundary treatment for fourth-order staggered mesh discretizations of the incompressible Navier-Stokes equations

    NARCIS (Netherlands)

    Sanderse, B.; Verstappen, R.W.C.P.; Koren, B.

    2014-01-01

    Harlow and Welch [Phys. Fluids 8 (1965) 2182–2189] introduced a discretization method for the incompressible Navier–Stokes equations conserving the secondary quantities kinetic energy and vorticity, besides the primary quantities mass and momentum. This method was extended to fourth order accuracy b

  5. Proceedings Fourth International Workshop on Testing, Analysis and Verification of Web Software

    CERN Document Server

    Salaün, Gwen; Hallé, Sylvain; 10.4204/EPTCS.35

    2010-01-01

    This volume contains the papers presented at the fourth international workshop on Testing, Analysis and Verification of Software, which was associated with the 25th IEEE/ACM International Conference on Automated Software Engineering (ASE 2010). The collection of papers includes research on formal specification, model-checking, testing, and debugging of Web software.

  6. A Summary of an Assessment of Fourth and Sixth Grade Basic Skills.

    Science.gov (United States)

    CTB / McGraw-Hill, Monterey, CA.

    A comprehensive assessment was made of the status of elementary education in Missouri in reading, mathematics, language, and study skills. The Comprehensive Tests of Basic Skills (CTBS) and the Short Form Test of Academic Aptitude (SFTAA) were administered to a sample of Missouri fourth and sixth graders. For each curricular area, Missouri…

  7. New Hadrons Formed by the Fourth SM Family and Iso-singlet Quarks

    CERN Document Server

    Çiftçi, H; Ciftci, Hakan; Sultansoy, Saleh

    2001-01-01

    The properties of new heavy mesons containing new heavy quarks have been investigated. As an example, the fourth SM family quarks and weak isosinglet quarks predicted by E_{6} GUT are considered. Production of these hadrons at TeV energy lepton colliders have been analyzed.

  8. The Fourth Sociology and Music Education: Towards a Sociology of Integration

    Science.gov (United States)

    Wright, Ruth

    2014-01-01

    By identifying three main sociologies that characterise broad movements in the field since its inception, this paper provides a background to considerations of music education from the perspective of sociology. A fourth sociology is then proposed that may be useful to interrogate the complexities of the field of 21st century music education. This…

  9. Fourth Moment Sum Rule for the Charge Correlations of a Two-Component Classical Plasma

    Science.gov (United States)

    Alastuey, Angel; Fantoni, Riccardo

    2016-05-01

    We consider an ionic fluid made with two species of mobile particles carrying either a positive or a negative charge. We derive a sum rule for the fourth moment of equilibrium charge correlations. Our method relies on the study of the system response to the potential created by a weak external charge distribution with slow spatial variations. The induced particle densities, and the resulting induced charge density, are then computed within density functional theory, where the free energy is expanded in powers of the density gradients. The comparison with the predictions of linear response theory provides a thermodynamical expression for the fourth moment of charge correlations, which involves the isothermal compressibility as well as suitably defined partial compressibilities. The familiar Stillinger-Lovett condition is also recovered as a by-product of our method, suggesting that the fourth moment sum rule should hold in any conducting phase. This is explicitly checked in the low density regime, within the Abe-Meeron diagrammatical expansions. Beyond its own interest, the fourth-moment sum rule should be useful for both analyzing and understanding recently observed behaviours near the ionic critical point.

  10. Medical Problems in the Classroom: The Teacher's Role in Diagnosis and Management. Fourth Edition

    Science.gov (United States)

    Haslam, Robert H. A.; Valletutti, Peter J.

    2004-01-01

    This outstanding resource for teachers and school professionals is now in its fourth edition. It includes new chapters on reading disorders, emotional and behavioral problems, and safe schools. Five of its chapters have been completely rewritten. Updated topics include attention-deficit/hyperactivity disorder; cerebral palsy; autism; mental…

  11. Nutrition Claims Influence Health Perceptions and Taste Preferences in Fourth- and Fifth-Grade Children

    Science.gov (United States)

    Soldavini, Jessica; Crawford, Patricia; Ritchie, Lorrene D.

    2012-01-01

    Objective: To determine whether children perceive food with nutrition claims as healthier and tasting differently than those without claims. Methods: Fourth- and fifth-graders (n = 47) from 3 California schools participated. Two identical products (cookies, crackers, or juice) were placed in front of product packages, 1 with a nutrition claim, the…

  12. The 10th Session of the Fourth CAS Presidium Held in Beijing

    Institute of Scientific and Technical Information of China (English)

    Guo Haiyan

    2002-01-01

    @@ Chaired by Prof. LuYongxiang, executive chairman of the CAS Presidium and president of CAS, the 10th session of the fourth CAS Presidium was held on September 2 in Beijing. The CAS Presidium is the standing leading body of the CAS General Assembly, the highest organ of the CAS Academic Divisions (CASAD).

  13. The Elementary Bubble Project: Exploring Critical Media Literacy in a Fourth-Grade Classroom

    Science.gov (United States)

    Gainer, Jesse S.; Valdez-Gainer, Nancy; Kinard, Timothy

    2009-01-01

    This article addresses issues surrounding critical media literacy using popular culture texts. The authors focus on the example of their work with a fourth-grade class involved in a project to unpack the messages of popular media and advertising texts. This project, which they call the Elementary Bubble Project, was inspired by guerilla artist Ji…

  14. Water Works: A Great Show on Earth. Classroom Activities for Third and Fourth Grades.

    Science.gov (United States)

    McClure, Judy; Clark, Neil

    This curriculum guide is divided into five lessons, each containing several activities that reflect the natural path of inquiry that third or fourth grade students might take in considering the water that arrives in their bathroom sinks each morning. Starting from the familiar faucet, the students are encouraged to reflect on their own habits and…

  15. Solution of a singularly perturbed nonstationary fourth-order boundary-value problem

    Energy Technology Data Exchange (ETDEWEB)

    Makarov, V.L.; Guminskii, V.V. [Kiev State Univ. (Ukraine)

    1994-06-05

    A difference scheme is constructed by the method of lines for a nonstationary boundary-value problem for a fourth-order equation in the space coordinate. The uniform convergence with respect to a small parameter, of the solution of the linearization scheme to a solution of the original problem is proven. 8 refs.

  16. Suprasellar seeding of a benign choroid plexus papilloma of the fourth ventricle with local recurrence

    Energy Technology Data Exchange (ETDEWEB)

    Irsutti, M.; Thorn-Kany, M.; Arrue, P.; Manelfe, C. [Service de Neuro-Radiologie Diagnostique et Interventionnelle, Centre Hospitalier Universitaire Purpan, Toulouse (France); Richaud, J.; Sol, J.C. [Service de Neurochirurgie, Centre Hospitalier Universitaire Rangueil, Toulouse (France); Delisle, M.B. [Laboratoire d' Anatomie et de Cytologie Pathologiques, Centre Hospitalier Universitaire Rangueil, Toulouse (France)

    2000-09-01

    A suprasellar location of a benign choroid plexus papilloma is reported. Local recurrence within the fourth ventricle was also present, 8 years after apparently complete removal. Imaging and histological findings were similar to those of the initial lesion. At surgery, the suprasellar lesion had no connection with the ventricular system. Seeding of choroid plexus papillomas is discussed, and the pertinent literature reviewed. (orig.)

  17. The Fourth Phi Delta Kappa Poll of Teachers' Attitudes toward the Public Schools.

    Science.gov (United States)

    Langdon, Carol A.

    1997-01-01

    In the fourth Phi Delta Kappan teacher opinion poll, teachers evaluate both their own schools and colleagues highly, feel that on-campus student misbehavior has declined slightly since 1989, favor cutting administrators to save money, give parents Cs and Ds on child-rearing, think part-time student employment hurts academic performance, and…

  18. From the lab to the battlefield? Nanotechnology and fourth generation nuclear weapons

    CERN Document Server

    Gsponer, A

    2002-01-01

    The paper addresses some major implications of microelectromechanical systems (MEMS) engineering and nanotechnology for the improvement of existing types of nuclear weapons, and the development of more robust versions of these weapons, as well as for the development of fourth generations nuclear weapons in which nanotechnology will play an essential role.

  19. Effects of Multidimensional Concept Maps on Fourth Graders' Learning in Web-Based Computer Course

    Science.gov (United States)

    Huang, Hwa-Shan; Chiou, Chei-Chang; Chiang, Heien-Kun; Lai, Sung-Hsi; Huang, Chiun-Yen; Chou, Yin-Yu

    2012-01-01

    This study explores the effect of multidimensional concept mapping instruction on students' learning performance in a web-based computer course. The subjects consisted of 103 fourth graders from an elementary school in central Taiwan. They were divided into three groups: multidimensional concept map (MCM) instruction group, Novak concept map (NCM)…

  20. Applying Fourth Generation Management to Access Services: Reinventing Customer Service and Process Management

    Science.gov (United States)

    Hasty, Douglas F.

    2004-01-01

    Are librarians doing all they can to ensure that customer services are delivered with the customer in mind? Librarians are great at helping, but we sometimes need help with identifying customers, defining their needs, developing services, and reviewing the processes behind the services. Fourth Generation Management provides new insight for…

  1. A New Sum Analogous to Gauss Sums and Its Fourth Power Mean

    Directory of Open Access Journals (Sweden)

    Shaofeng Ru

    2014-01-01

    Full Text Available The main purpose of this paper is to use the analytic methods and the properties of Gauss sums to study the computational problem of one kind of new sum analogous to Gauss sums and give an interesting fourth power mean and a sharp upper bound estimate for it.

  2. Fourth SM family, breaking of mass democracy, and the CKM mixings

    International Nuclear Information System (INIS)

    We consider the violation of the democratic mass matrix in the framework of the four-family standard model. Predictions of fourth-family fermion masses as well as quark and lepton CKM mixings are presented. Production and decay modes of new fermions are discussed. copyright 1996 The American Physical Society

  3. Pilot internship program on radioactive waste at Vanderbilt University

    International Nuclear Information System (INIS)

    The fourth year of the program began with the selection of the new interns. Mailings were sent to prospective graduate students and rising juniors at Vanderbilt University with grade point averages of 3.0 or better (out of 4.0) advertising the availability of internships in radioactive waste disposal. New interns were selected. All of the interns selected in the fourth year chose to return to Vanderbilt after their field assignment

  4. REFLECTIONS ON SCIENCE AND TECHNOLOGY CURRICULUM IN THE FOURTH GRADE ‘THE EXAMPLE OF ADANA CITY’

    Directory of Open Access Journals (Sweden)

    Mehmet KARAKUŞ

    2013-06-01

    Full Text Available The national policy in 2004 aimed to develop the curriculum in Science andTechnology classes and to keep up with the change sand progress happening. Given the developed curriculum of Science andTechnology, it can be seen that the constructivist learning theory was adopted (Gömleksiz & Bulut, 2005. Students in the fourth grade the first encounter with the curriculum of Science and Technology. In this regard, students learn the concepts of the fourth grade program correct and complete construction is extremely important the correct the construction of science concepts in their minds. In this context, the new curriculum is based on science and technology skills and knowledge required by the constructivist approach is of great importance for fourth grade teachers. Therefore, based on the constructivist approach teachers teaching methods and techniques are required to have sufficient knowledge and skills to practice (Gömleksiz & Bulut, 2005. The constructivist philosophy recommends the radical changes related to the arrangement of the class and realization of the education. However, the studies showed that the constructivist approach present in the curriculum was not administered in the clasroom environment, and that the teaching was maintained through teacher-centric applications. (Bozyılmaz& Bağcı-Kılıç, 2005; Saylan & Yurdakul, 2005; Yaşar, Gültekin, Türkkan, Yıldız, & Girmen, 2005. Correspondingly, Anagün, Yalçınoğluand Ersoy (2012 found that only one-third of the fiften ones adopted the constructivist approach but only two of them put the approach in to practice. This study aimed to describe the present situation and the problems encountered in terms of the objectives, activities and assessment based on the constructivist approach in science and technology classes in the fourth grades. The findings obtained are thought to shedlight on curriculum development. The methodology of this study is descriptive. The classes related were

  5. Pithovirus sibericum, a new bona fide member of the “Fourth TRUC” club

    Science.gov (United States)

    Sharma, Vikas; Colson, Philippe; Chabrol, Olivier; Pontarotti, Pierre; Raoult, Didier

    2015-01-01

    Nucleocytoplasmic large DNA viruses, or representatives of the proposed order Megavirales, include giant viruses of Acanthamoeba that were discovered over the last 12 years and are bona fide microbes. Phylogenies based on a few genes conserved amongst these megaviruses and shared by microbes classified as Eukarya, Bacteria, and Archaea, allowed for delineation of a fourth monophylogenetic group or “TRUC” (Things Resisting Uncompleted Classification) composed of the Megavirales representatives. A new Megavirales member named Pithovirus sibericum was isolated from a >30,000-year-old dated Siberian permafrost sample. This virion is as large as recently described pandoraviruses but has a genome that is approximately three to four times shorter. Our objective was to update the classification of P. sibericum as a new member of the “Fourth TRUC” club. Phylogenetic trees were constructed based on four conserved ancient genes and a phyletic analysis was concurrently conducted based on the presence/absence patterns of a set of informational genes from members of Megavirales, Bacteria, Archaea, and Eukarya. Phylogenetic analyses based on the four conserved genes revealed that P. sibericum is part of the fourth TRUC composed of Megavirales members, and is closely related to the families Marseilleviridae and Ascoviridae/Iridoviridae. Additionally, hierarchical clustering delineated four branches, and showed that P. sibericum is part of this fourth TRUC. Overall, phylogenetic and phyletic analyses using informational genes clearly indicate that P. sibericum is a new bona fide member of the “Fourth TRUC” club composed of representatives of Megavirales, alongside Bacteria, Archaea, and Eukarya. PMID:26300849

  6. Materials sciences programs, Fiscal year 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-10-01

    The Division of Materials Sciences is responsible for basic research and research facilities in materials science topics important to the mission of the Department of Energy. The programmatic divisions under the Office of Basic Energy Sciences are Chemical Sciences, Engineering and Geosciences, and Energy Biosciences. Materials Science is an enabling technology. The performance parameters, economics, environmental acceptability and safety of all energy generation, conversion, transmission and conservation technologies are limited by the properties and behavior of materials. The Materials Sciences programs develop scientific understanding of the synergistic relationship among synthesis, processing, structure, properties, behavior, performance and other characteristics of materials. Emphasis is placed on the development of the capability to discover technologically, economically, and environmentally desirable new materials and processes, and the instruments and national user facilities necessary for achieving such progress. Materials Sciences subfields include: physical metallurgy, ceramics, polymers, solid state and condensed matter physics, materials chemistry, surface science and related disciplines where the emphasis is on the science of materials. This report includes program descriptions for 517 research programs including 255 at 14 DOE National Laboratories, 262 research grants (233 of which are at universities), and 29 Small Business Innovation Research Grants. Five cross-cutting indices located at the rear of this book identify all 517 programs according to principal investigator(s), materials, techniques, phenomena, and environment.

  7. 78 FR 39597 - Safety Zone; “Lights on the Lake” Fourth of July Fireworks, South Lake Tahoe, CA

    Science.gov (United States)

    2013-07-02

    ... SECURITY Coast Guard 33 CFR Part 165 Safety Zone; ``Lights on the Lake'' Fourth of July Fireworks, South Lake Tahoe, CA AGENCY: Coast Guard, DHS. ACTION: Notice of enforcement of regulation. SUMMARY: The Coast Guard will enforce the safety zone for the ``Lights on the Lake'' Fourth of July Fireworks...

  8. The Effects of Background Music in the Classroom on the Productivity, Motivation, and Behavior of Fourth Grade Students

    Science.gov (United States)

    White, Kevin N.

    2007-01-01

    Many students in a fourth grade classroom at Logan Elementary School are expressing numerous types of negative behaviors, are not motivated to learn, and do not stay on-task. In an effort to change these students, an action research study was conducted that implemented background music in the classroom. There were ten fourth grade students who…

  9. The Effects of Running Club Membership on Fourth Graders' Achievement of Connecticut State Standard for the Mile Run

    Science.gov (United States)

    Foshay, John D.; Patterson, Melissa

    2010-01-01

    The purpose of this study was to investigate the effects of a running club on the mile run times of fourth grade students. The study was conducted in a suburban elementary school setting in central Connecticut with a student body of 400. The participants for the study included 59 fourth grade students, 30 of whom were boys and 29 of whom were…

  10. Nutrition Education Intervention Improves Vegetable-Related Attitude, Self-Efficacy, Preference, and Knowledge of Fourth-Grade Students

    Science.gov (United States)

    Wall, Denise E.; Least, Christine; Gromis, Judy; Lohse, Barbara

    2012-01-01

    Background: Impact of a classroom-based, standardized intervention to address limited vegetable consumption of fourth graders was assessed. Methods: A 4-lesson, vegetable-focused intervention, revised from extant materials was repurposed for Pennsylvania fourth graders with lessons aligned with state academic standards. A reliability-tested survey…

  11. Side-specific effect of yolk testosterone elevation on second-to-fourth digit ratio in a wild passerine

    Science.gov (United States)

    Nagy, Gergely; Blázi, György; Hegyi, Gergely; Török, János

    2016-02-01

    Second-to-fourth digit ratio is a widely investigated sexually dimorphic morphological trait in human studies and could reliably indicate the prenatal steroid environment. Conducting manipulative experiments to test this hypothesis comes up against ethical limits in humans. However, oviparous tetrapods may be excellent models to experimentally investigate the effects of prenatal steroids on offspring second-to-fourth digit ratio. In this field study, we injected collared flycatcher ( Ficedula albicollis) eggs with physiological doses of testosterone. Fledglings from eggs with elevated yolk testosterone, regardless of their sex, had longer second digits on their left feet than controls, while the fourth digit did not differ between groups. Therefore, second-to-fourth digit ratio was higher in the testosterone-injected group, but only on the left foot. This is the first study which shows experimentally that early testosterone exposure can affect second-to-fourth digit ratio in a wild population of a passerine bird.

  12. Beginning programming with Java for dummies

    CERN Document Server

    Burd, Barry

    2014-01-01

    A practical introduction to programming with Java Beginning Programming with Java For Dummies, 4th Edition is a comprehensive guide to learning one of the most popular programming languages worldwide. This book covers basic development concepts and techniques through a Java lens. You'll learn what goes into a program, how to put the pieces together, how to deal with challenges, and how to make it work. The new Fourth Edition has been updated to align with Java 8, and includes new options for the latest tools and techniques. Java is the predominant language used to program Android and cloud app

  13. Environmental Living Program, Book 4: Have We Forgotten Anything?

    Science.gov (United States)

    Baldi, Mary Lou

    This is the fourth of four booklets describing the Environmental Living Program. This program, which has been in operation since 1969, provides overnight living experiences for elementary and secondary school students at cultural, historic, or prehistoric sites in California and Arizona. This booklet addresses practical matters such as cost,…

  14. Fourth generation effects in rare exclusive $B \\to K^{*}1^{+}l^{-}$ decay

    CERN Document Server

    Aliev, T M; Savci, M

    2000-01-01

    Influence of the fourth generation, if ever exists, on the experimentallymeasurable quantities such as invariant dilepton mass distribution, leptonforward-backward asymmetry, and the ratio (Gamma_L/Gamma_T) of the decay widthswhen K* meson is longitudinally and transversally polarized, is studied. Usingthe experimental results on the branching ratios for the (B -> X_s) gamma andsemileptonic (B -> X_c l nu) decays, the two possible solutions of the 4x4Cabibbo-Kobayashi-Maskawa factor (V_{t's} V_{t^'b}) are obtained as a functionof the t'-quark mass. It is observed that the results for the above-mentionedphysical quantities are essentially different from the standard modelpredictions only for one solution of the CKM factor. In this case theabove-mentioned physical quantities can serve as efficient tools in search ofthe fourth generation. The other solution yields almost identical results withthe SM.

  15. Unified Electronic Currency Based on the Fourth Party Platform Integrated Payment Service

    Science.gov (United States)

    Yong, Xu; Qiqi, Hu

    This paper presents a solution of unified e-currency based on the fourth party platform integrated payment service. The purpose of the paper is to solve the problem of distribution and resource-wasting caused by the lack of unified electronic currency, and to solve regulatory difficulties due to regulation size caused by a wide variety of e-currency. Methods: This article first analyzes the problems in the development of electronic money, and then proposes the concept of a unified electronic currency based on the fourth party platform integrated payment service. Besides, it proposes a unified mechanism and transaction procedures for unified e-currency, and analyzes the liquidation process, security and regulatory requirements, which are involved in using unified electronic currency.

  16. Scout fourth stage attitude and velocity control (AVC) system feasibility study

    Science.gov (United States)

    Byars, L. B.

    1975-01-01

    The feasibility of incorporating a guidance system in the Scout fourth stage to achieve a significant improvement in expected payload delivery accuracy is studied. The technical investigations included the determination of the AVC equipment performance requirements, establishment of qualification and acceptance test levels, generation of layouts illustrating design approaches for the upper D and payload transition sections to incorporate the hardware, and the preparation of a vendor bid package. Correction concepts, utilizing inertial velocity and attitude, were identified and evaluated. Fourth stage attitude adjustments as determined from inertial velocity variation through the first three stages and a final velocity correction based upon the measured in-plane component errors at injection were employed. Results show radical reductions in apogee-perigee deviations.

  17. The recurrence coefficients of semi-classical Laguerre polynomials and the fourth Painlevé equation

    International Nuclear Information System (INIS)

    We show that the coefficients of the three-term recurrence relation for orthogonal polynomials with respect to a semi-classical extension of the Laguerre weight satisfy the fourth Painlevé equation when viewed as functions of one of the parameters in the weight. We compare different approaches to derive this result, namely, the ladder operators approach, the isomonodromy deformations approach and combining the Toda system for the recurrence coefficients with a discrete equation. We also discuss a relation between the recurrence coefficients for the Freud weight and the semi-classical Laguerre weight and show how it arises from the Bäcklund transformation of the fourth Painlevé equation. (paper)

  18. A fourth order accurate finite difference scheme for the computation of elastic waves

    Science.gov (United States)

    Bayliss, A.; Jordan, K. E.; Lemesurier, B. J.; Turkel, E.

    1986-01-01

    A finite difference for elastic waves is introduced. The model is based on the first order system of equations for the velocities and stresses. The differencing is fourth order accurate on the spatial derivatives and second order accurate in time. The model is tested on a series of examples including the Lamb problem, scattering from plane interf aces and scattering from a fluid-elastic interface. The scheme is shown to be effective for these problems. The accuracy and stability is insensitive to the Poisson ratio. For the class of problems considered here it is found that the fourth order scheme requires for two-thirds to one-half the resolution of a typical second order scheme to give comparable accuracy.

  19. On preference of Yoshida construction over Forest-Ruth fourth-order symplectic algorithm

    Energy Technology Data Exchange (ETDEWEB)

    Mei, Lijie [Nanchang University, School of Science, Nanchang (China); Wu, Xin [Nanchang University, School of Science, Nanchang (China); Chinese Academy of Sciences, Purple Mountain Observatory, Nanjing (China); Liu, Fuyao [Shanghai Lixin University of Commerce, School of Mathematics and Information, Shanghai (China)

    2013-05-15

    The Forest-Ruth fourth-order symplectic algorithm is identical to the Yoshida triplet construction when all component integrators of both algorithms are exactly known. However, this equality no longer holds in general when some or all of the components are inexact and when they are second-order with odd-order error structures. The former algorithm is only second-order accurate in most cases, whereas the latter can be fourth-order accurate. These analytical results are supported by numerical simulations of partially separable but globally inseparable Hamiltonian systems, such as the post-Newtonian Hamiltonian formulation of spinless compact binaries. Therefore, the Yoshida construction has intrinsic merit over the concatenated Forest-Ruth algorithm when inexact component integrators are used. (orig.)

  20. The recurrence coefficients of semi-classical Laguerre polynomials and the fourth Painlev\\'e equation

    CERN Document Server

    Filipuk, Galina; Zhang, Lun

    2011-01-01

    We show that the coefficients of the three-term recurrence relation for orthogonal polynomials with respect to a semi-classical extension of the Laguerre weight satisfy the fourth Painlev\\'e equation when viewed as functions of one of the parameters in the weight. We compare different approaches to derive this result, namely, the ladder operators approach, the isomonodromy deformations approach and combining the Toda system for the recurrence coefficients with a discrete equation. We also discuss a relation between the recurrence coefficients for the Freud weight and the semi-classical Laguerre weight and show how it arises from the B\\"acklund transformation of the fourth Painlev\\'e equation.