WorldWideScience

Sample records for abnormal occurrences october-december

  1. Report to Congress on abnormal occurrences, October--December 1992

    International Nuclear Information System (INIS)

    1993-03-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from October 1 through December 31, 1992. There are two abnormal occurrences at nuclear power plants and six abnormal occurrences involving medical misadministration (all therapeutic) at NRC-licensed facilities discussed in this report. No abnormal occurrences were reported by the NRC's Agreement States. The report also contains information updating three previously reported abnormal occurrences

  2. Report to Congress on abnormal occurrences, October--December 1991

    International Nuclear Information System (INIS)

    1992-03-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence of an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health and safety and requires a quarterly report of such events to be made to Congress. This report covers the period October through December 1991. Five abnormal occurrences at NRC-licensed facilities are discussed in this report. None of these occurrences involved a nuclear power plant. Four involved medical therapy misadministrations and one involved a medical diagnostic misadministration. The NRC's Agreement States reported three abnormal occurrences. Two involved exposures of non-radiation workers and one involved a medical therapy misadministration. The report also contains information that updates some previously reported abnormal occurrences

  3. Report to Congress on abnormal occurrences, October-December 1987

    International Nuclear Information System (INIS)

    1988-03-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from October 1 to December 31, 1987. The report states that for this reporting period, these was one abnormal occurrence at the NRC licensees; the item involved the suspension of license of an oil and gas well tracer company for noncompliance with NRC regulatory requirements. There were no abnormal occurrences report by the Agreement States. The report also contains information updating some previously reported abnormal occurrences

  4. Report to Congress on abnormal occurrences, October-December 1986

    International Nuclear Information System (INIS)

    1987-07-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from October 1 to December 31, 1986. The report states that for this reporting period, there were three abnormal occurrences at the nuclear power plants licensed to operate. The events were (1) loss of low pressure service water systems at Oconee, (2) degraded safety systems due to incorrect torque switch settings on Rotors motor operators at Catawba and McGuire Nuclear Stations, and (3) a secondary system pipe break resulting in the death of four persons at Surry Unit 2. There were six abnormal occurrences at the other NRC licensees. One involved release of americium-241 inside a waste storage building at Wright-Patterson Air Force Base; three involved medical misadministrations, one therapeutic and two diagnostic; one involved a suspension of license for servicing teletherapy and radiography units; and one involved an immediately effective order modifying license and order to show cause issued to an industrial radiography company. There were no abnormal occurrences reported by the Agreement States. The report also contains information updating some previously reported abnormal occurrences

  5. Report to Congress on abnormal occurrences, October--December 1976

    International Nuclear Information System (INIS)

    1977-01-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report, the seventh in the series, covers the period from October 1 to December 31, 1976. The NRC has determined that during this period: (1) There were two abnormal occurrences at the 63 nuclear power plants licensed to operate. One event involved improper control rod withdrawals resulting in an unplanned reactor criticality. The second is a generic event pertaining to feedwater nozzle cracking in Boiling Water Reactors. The incidents had no actual impact on public health or safety. (2) There were five abnormal occurrences at other licensee facilities. The occurrences involved overexposures to radiography personnel; one event also involved high radiation levels in unrestricted areas. This report also contains information updating previously reported abnormal occurrences. This report does not contain information on activities in those states which have entered into agreements with the NRC for the assumption of certain regulatory authority pursuant to Section 274 of the Atomic Energy Act, as amended. Future reports will include Agreement State licensee activities as soon as procedures can be implemented

  6. Report to Congress on abnormal occurrences, October-December 1981. Quarterly report

    International Nuclear Information System (INIS)

    1982-05-01

    During the report period, there were two abnormal occurrences at the nuclear power plants licensed to operate. One involved a generic concern pertaining to blockage of coolant flow to safety-related systems. The other involved seismic design errors at Diablo Canyon Nuclear Power Plant with subsequent suspension of the fuel load and low power operating license for Unit 1. There were no abnormal occurrences for the other NRC licensees during the report period; the Agreement States reported no abnormal occurrences to the NRC. The report also contains information updating a previously reported abnormal occurrence

  7. Report to Congress on abnormal occurrences, October--December 1993. Volume 16, No. 4

    Energy Technology Data Exchange (ETDEWEB)

    1994-04-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from October 1 through December 31, 1993. This report discusses six abnormal occurrences at NRC-licensed facilities. Five involved medical brachytherapy misadministrations, and one involved an overexposure to a nursing infant. Seven abnormal occurrences that were reported by the Agreement States are also discussed, based on information provided by the Agreement States as of February 28, 1994. Of these events, three involved brachytherapy misadministrations, one involved a teletherapy misadministration, one involved a theft of radioactive material during transport and improper disposal, and two involved lost sources.

  8. Report to Congress on abnormal occurrences, October--December 1994. Volume 17, No. 4

    International Nuclear Information System (INIS)

    1995-05-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence (AO) as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such occurrences to be made to Congress. This report provides a description of those incidents and events that have been determined to be AOs during the period of October 1 through December 31, 1994. This report addresses four AOs at NRC-licensed facilities. These occurrences involved the following: a generic concern relating to core shroud cracking in boiling water reactors; recurring incidents of administering higher doses than procedurally allowed for diagnostic imaging at a single facility; one medical teletherapy misadministration; and one medical brachytherapy misadministration. Agreement States submitted four AO reports. These four occurrences involved the following: one major contamination at a commercial facility; two medical brachytherapy misadministrations; and one medical teletherapy misadministration. The report also contains updates of seven AOs previously reported by NRC licensees and four AOs previously reported by the Agreement States. Two ''Other Events of Interest'' are also being reported. These occurrences involved the operability of safety relief valves at a nuclear power plant, and an error in the installation process of a Leksell Gamma KnifeR teletherapy unit that resulted in an operational failure

  9. Report to Congress on abnormal occurrences, October--December 1994. Volume 17, No. 4

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-05-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence (AO) as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such occurrences to be made to Congress. This report provides a description of those incidents and events that have been determined to be AOs during the period of October 1 through December 31, 1994. This report addresses four AOs at NRC-licensed facilities. These occurrences involved the following: a generic concern relating to core shroud cracking in boiling water reactors; recurring incidents of administering higher doses than procedurally allowed for diagnostic imaging at a single facility; one medical teletherapy misadministration; and one medical brachytherapy misadministration. Agreement States submitted four AO reports. These four occurrences involved the following: one major contamination at a commercial facility; two medical brachytherapy misadministrations; and one medical teletherapy misadministration. The report also contains updates of seven AOs previously reported by NRC licensees and four AOs previously reported by the Agreement States. Two ``Other Events of Interest`` are also being reported. These occurrences involved the operability of safety relief valves at a nuclear power plant, and an error in the installation process of a Leksell Gamma KnifeR teletherapy unit that resulted in an operational failure.

  10. Packaging- and transportation-related occurrence reports, October-December 1994

    International Nuclear Information System (INIS)

    Welch, M.J.; Dickerson, L.S.; Armstrong, C.J.

    1995-02-01

    The Oak Ridge National Laboratory (ORNL) Packaging and Transportation Safety Program (PATS), which is sponsored by the U.S. Department of Energy (DOE) Office of Environment, Safety and Health, Office of Facility Safety Analysis, EH-32, has been charged with the responsibility of retrieving reports and information pertaining to transportation or packaging incidents from the Occurrence Reporting and Processing System (ORPS). These selected reports are being analyzed for trends, impact on EH-32 policies and concerns, and lessons learned concerning transportation and packaging safety. This task is designed not only to keep EH-32 aware of current packaging and transportation incidents and potential transportation and packaging problems that may need attention on DOE sites but also to allow future dissemination of lessons learned to the Operations Offices and, subsequently, to management and operating contractors. This report, which covers the period from October 2 to December 31, 1994, covers the weekly tabular reports OR-94-40 through OR-94-52. These 12 reports, which contained a total of 75 occurrence reports (ORs) relating to packaging and transportation issues, were submitted to EH-32 for its information and use during this quarter. The 75 ORs that were selected from the hundreds reviewed are listed. The second column of Table I contains the PATS nature of occurrence (NOC) coding for the respective OR, and the third column lists the weekly report issue in which the OR was originally transmitted to DOE-Headquarters (HQ). The Lesson Learned bulletins produced this quarter are included. These two bulletins have been distributed to a large packaging and transportation safety audience and are included as a natural outgrowth of the quarterly reports

  11. LLE Review 97 (October-December 2003)

    International Nuclear Information System (INIS)

    Goncharov, V.N.

    2004-01-01

    This volume of the LLE Review, covering October-December 2003, features 'Direct-Drive Cryogenic Target Implosion Performance on OMEGA.' Layered and characterized cryogenic D2 capsules have been imploded using high-contrast pulse shapes on the 60-beam OMEGA laser at the Laboratory for Laser Energetics. These experiments measure the sensitivity of the direct-drive implosion performance to parameters such as the inner-ice-surface roughness, the adiabat of the fuel during the implosion, and the laser power balance

  12. Report to Congress on abnormal occurrences

    International Nuclear Information System (INIS)

    1993-06-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health and safety and requires a quarterly report of such events to be made to Congress. This report covers the period January through March 1993. There is one abnormal occurrence at a nuclear power plant disposed in this report that involved a steam generator tube rupture at Palo Verde Unit 2, and none for fuel cycle facilities. Three abnormal occurrences involving medical misadminstrations (two therapeutic and one diagnostic) at NRC-licensed facilities are also discussed in this report. No abnormal occurrences were reported by NRC's Agreement States. The report also contains information updating previously reported abnormal occurrences

  13. Report to Congress on abnormal occurrences

    International Nuclear Information System (INIS)

    1990-10-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from April 1 through June 30, 1990. The report discusses six abnormal occurrences, none involving a nuclear power plant. There were five abnormal occurrences at NRC licensees: (1) deficiencies in brachytherapy program; (2) a radiation overexposure of a radiographer; (3) a medical diagnostic misadministration; (4) administration of iodine-131 to a lactating female with subsequent uptake by her infant; and (5) a medical therapy misadministration. An Agreement State (Arizona) reported an abnormal occurrence involving a medical diagnostic misadministration. The report also contains information that updates a previously reported occurrence

  14. LLE Review 117 (October-December 2008)

    Energy Technology Data Exchange (ETDEWEB)

    Bittle, W., editor

    2009-05-28

    This volume of the LLE Review, covering October-December 2008, features 'Demonstration of the Shock-Timing Technique for Ignition Targets at the National Ignition Facility' by T. R. Boehly, V. N. Goncharov, S. X. Hu, J. A. Marozas, T. C. Sangster, D. D. Meyerhofer (LLE), D. Munro, P. M. Celliers, D. G. Hicks, G. W. Collins, H. F. Robey, O. L. Landen (LLNL), and R. E. Olson (SNL). In this article (p. 1) the authors report on a technique to measure the velocity and timing of shock waves in a capsule contained within hohlraum targets. This technique is critical for optimizing the drive profiles for high-performance inertial-confinement-fusion capsules, which are compressed by multiple precisely timed shock waves. The shock-timing technique was demonstrated on OMEGA using surrogate hohlraum targets heated to 180 eV and fitted with a re-entrant cone and quartz window to facilitate velocity measurements using velocity interferometry. Cryogenic experiments using targets filled with liquid deuterium further demonstrated the entire timing technique in a hohlraum environment. Direct-drive cryogenic targets with multiple spherical shocks were also used to validate this technique, including convergence effects at relevant pressures (velocities) and sizes. These results provide confidence that shock velocity and timing can be measured in NIF ignition targets, thereby optimizing these critical parameters.

  15. Report on Congress on abnormal occurrences

    International Nuclear Information System (INIS)

    1991-06-01

    Section 208 of the energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from January 1 through March 31, 1991. The report discusses six abnormal occurrences, none of which involved a nuclear power plant. Five of the events occurred at NRC-licensed facilities: one involved a significant degradation of plant safety at a nuclear fuel cycle facility, one involved a medical diagnostic misadministration, and three involved medical therapy misadministrations. An Agreement State (Arizona) reported one abnormal occurrence that involved medical therapy misadministrations

  16. Report to congress on abnormal occurrences: January--March 1992

    International Nuclear Information System (INIS)

    1992-07-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as abnormal occurrence as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to congress. This report covers the period from January 1 through March 31, 1992. The abnormal occurrences involving medical therapy misadministrations at NRC-licensed facilities are discussed in this report. There were no abnormal occurrences at a nuclear power plant, and none were reported by NRC's Agreement States. The report also contains information updating some previously reported abnormal occurrences

  17. Report to Congress on abnormal occurrences, April--June 1989

    International Nuclear Information System (INIS)

    1989-10-01

    The Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. For this reporting period, there was one abnormal occurrence at nuclear power plants licensed to operate involving significant deficiencies in management controls at Slurry Nuclear Power Station. There was one abnormal occurrence under other NRC-issued licenses; the event involved a medical therapy misadministration. One other abnormal occurrence, involving industrial radiography overexposures, was reported by an Agreement State (Texas). 40 refs

  18. Report to Congress on abnormal occurrences, July--September 1992

    International Nuclear Information System (INIS)

    1992-12-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from July 1 through September 30, 1992. There were no abnormal occurrences at a nuclear power plant. Two abnormal occurrences involving medical misadministrations (both therapeutic) and one involving overexposure of a radiographer at NRC-licensed facilities were discussed in this report. In addition, another abnormal occurrence was reported by an NRC Agreement State. The report also contains information updating a previously reported abnormal occurrence

  19. Report to Congress on abnormal occurrences, January--March 1977

    International Nuclear Information System (INIS)

    1977-01-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report, the eighth in the series, covers the period from January 1 to March 31, 1977. The NRC has determined that during this period: there were no abnormal occurrences at the 63 nuclear power plants licensed to operate; there were no abnormal occurrences at fuel cycle facilities (other than nuclear power plants); and there was one abnormal occurrence at other licensee facilities. The event involved an inadvertent radiation exposure to two painters while working in an area where industrial radiography was being performed. This report also contains information updating previously reported abnormal occurrences

  20. Report to Congress on abnormal occurrences, April--June 1988

    International Nuclear Information System (INIS)

    1988-12-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from April 1 to June 30, 1988. For this reporting period, there were no abnormal occurrences at nuclear power plants licensed to operate. There were two abnormal occurrences at other NRC licensees: a significant breakdown in management and procedural controls at a medical facility and a medical diagnostic misadministration. There was one abnormal occurrence reported by an Agreement State (Texas) involving radioactive material released during a transportation accident. The report also contains information updating some previously reported abnormal occurrences

  1. Report to Congress on abnormal occurrences, July--September 1988

    International Nuclear Information System (INIS)

    1989-01-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from July 1 to September 30, 1988. For this reporting period, there were no abnormal occurrences at nuclear power plants licensed to operate. There were two abnormal occurrences under other NRC-issued licenses: multiple medical therapy misadministrations at a single hospital and a medical diagnostic misadministration. There was one abnormal occurrence reported by an Agreement State (Texas) involving a medical diagnostic misadministration. The report also contains information updating some previously reported abnormal occurrences

  2. LLE Review Quarterly Report (October-December 2000). Volume 85

    Energy Technology Data Exchange (ETDEWEB)

    Sources, John M. [Univ. of Rochester, NY (United States). Lab. for Laser Energetics

    2000-12-01

    This volume of the LLE Review, covering October-December 2000, begins with an article by R. Betti, M. Umansky, V. Lobatchev, V. N. Goncharov, and R. L. McCrory, who report on the development of a model for the deceleration phase of an imploding inertial fusion capsule (p. 1). The model shows that the ablative flow off the inner shell surface plays a critical role in reducing the growth rate and suppressing short-wavelength modes in the deceleration-phase Rayleigh-Taylor instability. Other articles in this volume are: The Effect of Shock Heating on the Stability of Laser-Driven Targets; Spherical Cavity Expansion in Material with Densification; Design and Performance of a Selectable-Rate Streak-Camera Deflection Ramp Generator; Unique High-Bandwidth, UV Fiber Deliver System for OMEGA Diagnostics Applications; Fabrication and Properties of an Ultrafast NbN Hot-Electron Single-Photon detector; and, Preliminary Design of NIF 2-D SSD.

  3. LLE review. Volume 61, Quarterly report, October--December 1994

    International Nuclear Information System (INIS)

    1994-01-01

    This volume of the LLE review, covering the period of October--December 1994, contains articles on a diagnostic method employing krypton spectroscopy for measurement of temperature and shell-fuel mixing in high-temperature implosions; the first direct assessment of the ion-acoustic decay instability in a large-scale length, hot plasma; measurements of polarization mode dispersion and group-velocity walkaway in birefringent media using a frequency domain interferometer; an evaluation of the magnetic flux dynamics occurring in an optically triggered, thin-film superconducting switch; the effect of slurry fluid chemistry on particle size distribution during aqueous polishing of optical glass; and the influence of thermal and mechanical processing history in the preparation of well-ordered liquid crystal elastomer systems

  4. LLE review. Volume 61, Quarterly report, October--December 1994

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1994-12-31

    This volume of the LLE review, covering the period of October--December 1994, contains articles on a diagnostic method employing krypton spectroscopy for measurement of temperature and shell-fuel mixing in high-temperature implosions; the first direct assessment of the ion-acoustic decay instability in a large-scale length, hot plasma; measurements of polarization mode dispersion and group-velocity walkaway in birefringent media using a frequency domain interferometer; an evaluation of the magnetic flux dynamics occurring in an optically triggered, thin-film superconducting switch; the effect of slurry fluid chemistry on particle size distribution during aqueous polishing of optical glass; and the influence of thermal and mechanical processing history in the preparation of well-ordered liquid crystal elastomer systems.

  5. LLE Review quarterly report, October--December 1992. Volume 53

    Energy Technology Data Exchange (ETDEWEB)

    Meyerhofer, D.D. [ed.

    1992-12-31

    This volume of the LLE Review covers the three-month period October--December 1992. On 18 December, the OMEGA Laser Facility fired its last shot. It will be decommissioned during the next quarter to make room for the OMEGA Upgrade Laser Facility. This volume deals with two areas of interest for the OMEGA Upgrade, the development of advanced x-ray and neutron diagnostics and the development of long-pulse (>1-ns) laser sources. The first three articles discuss the development of time-dependent diagnostics. The development of an x-ray framing camera is described and measurements of the high-voltage pulse propagation in the camera are presented. Time-resolved and time-integrated neutron diagnostics for the OMEGA Upgrade are then discussed. Two schemes for the generation of >1-ns laser pulses are presented. Finally, the activities of the National Laser Users Facility and the GDL and OMEGA laser facilities are summarized.

  6. LLE review. Volume 65. Quarterly report, October--December 1995

    Energy Technology Data Exchange (ETDEWEB)

    Boehly, T.R. [ed.

    1996-06-01

    This volume of the LLE Review, covering the period October-December 1995, contains a description of the generation and characterization of continuous, deep-surface-relief phase plates that are more efficient and versatile than previous designs. The LLE program plan has scheduled a number of enhancements to OMEGA`s performance and uniformity, the first of which is the implementation of these new distributed phase plates. Other articles in this volume include the discussion of an x-ray diagnostic method to measure shell-fuel mixing, the theoretical analysis of ablation-front stability, a description of a major subsystem in the OMEGA control system software, a study of the population inversions in intensely pumped Nd:YLF, and a description of a new ultrafast laser system and its uses.

  7. Report to Congress on abnormal occurrences, April--June 1992

    International Nuclear Information System (INIS)

    1992-09-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event that the nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from April 1 through June 30, 1992. Five abnormal occurrences are discussed in this report. One involved an extended loss of high-head safety injection capability at the Shearon Harris Nuclear Power Plant. The other four involved medical misadministrations (three therapeutic and one diagnostic) at NRC-licensed facilities. No abnormal occurrences were reported by NRC's Agreement States. The report also contains information updating a previously reported abnormal occurrence

  8. Report to Congress on abnormal occurrences, January-March 1983

    International Nuclear Information System (INIS)

    1983-09-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from January 1 to March 31, 1983. The report states that for this report period, there were three abnormal occurrences at the nuclear power plants licensed by the NRC to operate. The first involved a main feedwater line break due to water hammer. The second involved management and procedural control deficiencies. The third involved failure of the automatic reactor trip system. There were no abnormal occurrences for the other NRC licensees. There were six abnormal occurrences at Agreement State licensees. One involved an individual who ingested and was contaminated by radioactive material. Four involved lost or stolen radioactive sources. One involved radioactive contamination of a metals production facility

  9. Report to Congress on abnormal occurrences, July--September 1991

    International Nuclear Information System (INIS)

    1991-12-01

    Section 108 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health and safety and requires a quarterly report of such events to be made to Congress. This report covers the period July through September 1991. The report discusses two abnormal occurrences at NRC-licensed facilities, neither involving a nuclear power plant. One involved radiation exposures to members of the public from a lost radioactive source and the other involved a medical diagnostic midadministration. The Agreement States reported no abnormal occurrences. The report also contains information that updates some previously reported abnormal occurrences

  10. Report to Congress on abnormal occurrences, July--September 1989

    International Nuclear Information System (INIS)

    1990-01-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from July 1 to September 30, 1989. For this reporting period, there were five abnormal occurrences. One abnormal occurrence took place at a licensed nuclear power plant and involved significant deficiencies associated with the containment recirculation sump at the Trojan facility. The other four abnormal occurrences took place under other NRC-issued licenses: the first involved a medical diagnostic misadministration; the second involved a medical therapy misadministration; the third involved a radiation overexposure of a radiographer; and the fourth involved a significant breakdown and careless disregard of the radiation safety program at three of a licensee's manufacturing facilities. The Agreement States reported no abnormal occurrences during the reporting period. The report also contains information that updates some previously reported abnormal occurrences. 17 refs

  11. Report to Congress on abnormal occurrences, April--June 1978

    International Nuclear Information System (INIS)

    1978-01-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report, the thirteenth in the series, covers the period from April 1 to June 30, 1978. The following incidents or events in that period were determined by the Commission to be significant and reportable: (1) There were two abnormal occurrences at the 69 nuclear power plants licensed to operate. One involved a generic concern pertaining to fuel assembly control rod guide tube integrity. The second involved an overexposure of two radiation protection technicians. (2) There were no abnormal occurrences at fuel cycle facilities (other than nuclear power plants). (3) There were no abnormal occurrences at other licensee facilities. (4) There was one abnormal occurrence reported by an agreement state. The event involved willful violations of regulations and subsequent termination of a license. This report also contains information updating previously reported abnormal occurrences

  12. LLE review. Quarterly report, October--December 1991: Volume 49

    Energy Technology Data Exchange (ETDEWEB)

    Keck, R.L. [ed.

    1991-12-31

    This volume of the LLE Review, covering the period October-December 1991, contains articles on the analysis of argon-filled target experiments, and a theoretical analysis of the impact of nonlocal heat transport in laser filamentation in plasmas. In the Advanced Technology section there is an article on mechanisms that affect thin-film conductivity, and a report on the gain characteristics of the 20-cm SSA prototype amplifier to be used in the OMEGA Upgrade. Finally, the activities of the National Laser Users Facility and the GDL and OMEGA laser facilities are summarized. Highlights of the research reported in this issue are: argon radiation from argon-filled, polymer-shell targets is used as a core-temperature diagnostic and density diagnostic of the surrounding region in a regime where the argon line radiation is strongly absorbed. A theoretical analysis of the impact of nonlocal heat transport on laser filamentation in plasmas is developed. The resulting model is compared with experimental observations and the implications for ICF are discussed. A study of thermal conductivity in thin films seeks to identify mechanisms that result in degradation of thin-film conductivity. Identifying these mechanisms can lead to changes in the thin-film manufacture that will improve their resistance to laser damage.

  13. LLE Review Quarterly Report (October-December 2001). Volume 89

    Energy Technology Data Exchange (ETDEWEB)

    Donaldson, William R. [Univ. of Rochester, NY (United States). Lab. for Laser Energetics

    2001-12-01

    This volume of the LLE Review, covering October-December 2001, features “Time-Integrated Light Images of OMEGA Implosions” by P. Morley and W. Seka (p. 1). E. Kowaluk initiated this project for aesthetic rather than scientific reasons when he began taking visible light photographs of imploding OMEGA targets. These beautiful images are used to communicate LLE’s mission to the general public. A closer examination of the images revealed a one-to-one correspondence between the bright spots in the image and each of the 60 laser beams. The intensity of the bright spots has been related to refraction and absorption in the plasma surrounding the imploding target. These photographs are now proving to be the basis of a new laser-plasma interaction diagnostic. Other articles in this volume are titled the following: Analytical Model of Nonlinear, Single-Mode, Classical Rayleigh-Taylor Instability at Arbitrary Atwood Numbers; A High-Pass Phase Plate Design for OMEGA and the NIF; Advanced Tritium Recovery System; Establishing Links Between Single Gold Nanoparticles Buried Inside SiO2 Thin Film and 351-nm Pulsed-Laser-Damage Morphology; Resistive Switching Dynamics in Current-Biased Y-Ba-Cu-O Microbridges Excited by Nanosecond Electrical Pulses; and, Properties of Amorphous Carbon Films.

  14. Report to Congress on abnormal occurrences, January--March 1988

    International Nuclear Information System (INIS)

    1988-07-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from January 1 to March 31, 1988. For this reporting period, there were three abnormal occurrences at nuclear power plants licensed to operate: a potential for common mode failure of safety-related components due to a degraded instrument air system at Fort Calhoun; common mode failures of main steam isolation valves at Perry Unit 1; and a cracked pipe weld in a safety injection system at Farley Unit 2. There were six abnormal occurrences at other NRC licensees: a diagnostic medical misadministration; a breakdown in management controls at the Georgia Institute of Technology reactor facility; release of polonium-210 from static elimination devices manufactured by the 3M Company; two therapeutic medical misadministrationS; and a significant widespread breakdown in the radiation safety program at Case Western Reserve University research laboratories. There was one abnormal occurrence reported by an Agreement State (Texas) involving radiation injury to two radiographers. The report also contains information updating some previously reported abnormal occurrences. 43 refs

  15. Report to Congress on abnormal occurrences, July-September 1987

    International Nuclear Information System (INIS)

    1988-03-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from July 1 to September 30, 1987. The report states that for this reporting period, there were two abnormal occurrences at the nuclear power plants licensed to operate. The first involved a significant degradation of plant safety at Oyster Creek; and the second involved a steam generator tube rupture at North Anna Unit 1. There were four abnormal occurrences at the other NRC licensees. The first involved a therapeutic medical misadministration; the second involved a failure to report diagnostic medical misadministrations; the third involved the suspension of a well logging company's license; and the fourth involved the suspension of an industrial radiography company's license. There were two abnormal occurrences reported by an Agreement State (New York). The first involved a hospital contamination incident and the second involved therapeutic medical misadministrations. The report also contains information updating some previously reported abnormal occurrences

  16. Report to Congress on abnormal occurrences, January--March 1990

    International Nuclear Information System (INIS)

    1990-07-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from January 1 through March 31, 1990. for this reporting period, there were 10 abnormal occurrences. One involved the loss of vital ac power with a subsequent reactor coolant system heat-up at the Vogtle Unit 1 nuclear power plant during shutdown. The event was investigated by an NRC Incident Investigation Team (IIT). The other nine abnormal occurrences involved nuclear material licensees and are described in detail under other NRC-issued licenses: eight of these involved medical therapy misadministrations; the other involved the receipt of an unshielded radioactive source at Amersham Corporation in Burlington, Massachusetts. The latter event was also investigated by an NRC IIT. No abnormal occurrences were reported by the Agreement States. The report also contains information that updates a previously reported abnormal occurrence

  17. Report to Congress on abnormal occurrences, April--June 1993

    International Nuclear Information System (INIS)

    1993-09-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health and safety and requires a quarterly report of such events to be made to Congress. This report covers the period April through June 1993, and discusses four abnormal occurrences at NRC-licensed facilities, three involving medical brachytherapy misadministrations and one involving a research reactor that operated without a safety system. One pool irradiation facility contamination event, two medical misadministrations (one ''sodium iodide'' and one brachytherapy), and one industrial radiographer overexposure event that were reported by NRC Agreement States are also discussed. The report also contains information updating one previously reported abnormal occurrence and information on three other events of interest

  18. LLE review, Volume 77. Quarterly report, October--December 1998

    Energy Technology Data Exchange (ETDEWEB)

    Regan, S.P. [ed.

    1998-12-31

    This volume of the LLE Review, covering the period October--December 1998, includes two articles addressing issues applicable to direct-drive ICF on the National Ignition Facility (NIF): laser-plasma interactions and laser-irradiation uniformity. Additional highlights of the research presented in this issue are: (1) P.B. Radha and S. Skupsky present a novel charged-particle diagnostic that performs simultaneous {rho}R measurements of the fuel, shell, and ablator regions of a compressed ICF target, consisting of an inner DT fuel region, a plastic (CH) shell, and an ablator (CD), by measuring the knock-on deuteron spectrum. (2) F. Dahmani, S. Burns, J. Lambropoulos, S. Papernov, and A. Schmid report results from stress-inhibited laser-driven crack propagation and stress-delayed damage-initiation experiments in fused silica at 351 nm. Research is underway presently to determine the ramifications of these findings for large-aperture systems, such as OMEGA. (3) V. Goncharov presents an analytic theory of the ablative Richtmyer-Meshkov instability, which shows that the main stabilizing mechanism of the ablation-front perturbations is the dynamic overpressure of the blowoff plasma with respect to the target material. The perturbation evolution during the shock transit time is studied to determine the initial conditions for the Rayleigh-Taylor phase of the instability and to analyze the level of laser imprint on ICF direct-drive targets. (4) J.M. Larkin, W.R. Donaldson, T.H. Foster, and R.S. Knox examine the triplet state of rose bengal, a dye used in photodynamic therapy, that is produced by 1,064-nm excitation of T{sub 1}. (5) R. Adam, M. Currie, R. Sobolewski, O. Harnack, and M. Darula report measurements of the picosecond photoresponse of a current-biased YBCO microbridge coupled to a bicrystal YBCO Josephson junction.

  19. NEAMS Update. Quarterly Report for October - December 2011.

    Energy Technology Data Exchange (ETDEWEB)

    Bradley, K. (Nuclear Engineering Division)

    2012-02-16

    The Advanced Modeling and Simulation Office within the DOE Office of Nuclear Energy (NE) has been charged with revolutionizing the design tools used to build nuclear power plants during the next 10 years. To accomplish this, the DOE has brought together the national laboratories, U.S. universities, and the nuclear energy industry to establish the Nuclear Energy Advanced Modeling and Simulation (NEAMS) Program. The mission of NEAMS is to modernize computer modeling of nuclear energy systems and improve the fidelity and validity of modeling results using contemporary software environments and high-performance computers. NEAMS will create a set of engineering-level codes aimed at designing and analyzing the performance and safety of nuclear power plants and reactor fuels. The truly predictive nature of these codes will be achieved by modeling the governing phenomena at the spatial and temporal scales that dominate the behavior. These codes will be executed within a simulation environment that orchestrates code integration with respect to spatial meshing, computational resources, and execution to give the user a common 'look and feel' for setting up problems and displaying results. NEAMS is building upon a suite of existing simulation tools, including those developed by the federal Scientific Discovery through Advanced Computing and Advanced Simulation and Computing programs. NEAMS also draws upon existing simulation tools for materials and nuclear systems, although many of these are limited in terms of scale, applicability, and portability (their ability to be integrated into contemporary software and hardware architectures). NEAMS investments have directly and indirectly supported additional NE research and development programs, including those devoted to waste repositories, safeguarded separations systems, and long-term storage of used nuclear fuel. NEAMS is organized into two broad efforts, each comprising four elements. The quarterly highlights October-December

  20. Reactor Safety Research Programs Quarterly Report October - December 1981

    Energy Technology Data Exchange (ETDEWEB)

    Edler, S. K.

    1982-03-01

    This document summarizes the work performed by Pacific Northwest laboratory (PNL) from October 1 through December 31, 1981, for the Division of Accident Evaluation, U.S. Nuclear Regulatory Commission (NRC). Evaluations of nondestructive examination (NDE) techniques and instrumentation are reported; areas of investigation include demonstrating the feasibility of determining the strength of structural graphite, evaluating the feasibility of detecting and analyzing flaw growth in reactor pressure boundary systems, examining NDE reliability and probabilistic fracture mechanics, and assessing the integrity of pressurized water reactor (PWR) steam generator tubes where serviceinduced degradation has been indicated. Experimental data and analytical models are being provided to aid in decision-making regarding pipe-to-pipe impacts following postulated breaks in high-energy fluid system piping. Core thermal models are being developed to provide better digital codes to compute the behavior of full-scale reactor systems under postulated accident conditions. Fuel assemblies and analytical support are being provided for experimental programs at other facilities. These programs include loss-of-coolant accident (LOCA) simulation tests at the NRU reactor, Chalk River, Canada; fuel rod deformation, severe fuel damage, and post accident coolability tests for the ESSOR reactor Super Sara Test Program, lspra, Italy; the instrumented fuel assembly irradiation program at Halden, Norway; and experimental programs at the Power Burst Facility, Idaho National Engineering Laboratory (INEL), Idaho Falls, Idaho. These programs will provide data for computer modeling of reactor system and fuel performance during various abnormal operating conditions.

  1. Enforcement actions: significant actions resolved. Quarterly progress report, October-December 1985. Volume 4, No. 4

    International Nuclear Information System (INIS)

    1986-02-01

    This compilation summarizes significant enforcement actions that have been resolved during one quarterly period (October - December 1985) and includes copies of letters, Notices, and Orders sent by the Nuclear Regulatory commission to licensees with respects to these enforcement actions, and the licensees' responses

  2. [Glass Development Laser (GDL) Facility upgrade.] LLE Review. Quarterly report, October-December 1984. Volume 21

    International Nuclear Information System (INIS)

    Kim, H.

    1984-01-01

    This volume of the LLE Review contains articles on the upgrade of the GDL (Glass Development) system, theoretical advances in the laser fusion effort, improved target fabrication capabilities, x-ray laser research, developments in the picosecond optics research of the LLE advanced technology program, and on the National Laser Users Facility activities for October-December 1984. 56 refs., 31 figs., 3 tabs

  3. Lightcurve Analysis of Hilda Asteroids at the Center for Solar System Studies: 2017 October-December

    Science.gov (United States)

    Warner, Brian D.; Stephens, Robert D.; Coley, Daniel R.

    2018-04-01

    Lightcurves for 12 Hilda asteroids were obtained at the Center for Solar System Studies (CS3) from 2017 October-December. Preliminary shape and spin axis models are given for seven of the Hildas: 958 Asplinda, 1439 Vogita, 1539 Oterma, 2483 Guinevere, 3561 Devine, 4317 Garibaldi, and 17428 Charleroi. These will serve as good starting points for future modeling.

  4. Near-Earth Asteroid Lightcurve Analysis at CS3-Palmer Divide Station: 2017 October-December

    Science.gov (United States)

    Warner, Brian D.

    2018-04-01

    Lightcurves for 20 near-Earth asteroids (NEAs) obtained at the Center for Solar System Studies-Palmer Divide Station (CS3-PDS) from 2017 October-December were analyzed for rotation period and signs of satellites or tumbling. The results for 7336 Saunders are based on data obtained in 2017 August and revise the original period of 3.36 h to 4.311 h. Preliminary shape and spin axis models are given for 1864 Daedalus and (17511) 1992 QN.

  5. Report to Congress on abnormal occurrences, January-March 1985. Volume 8, No. 1

    International Nuclear Information System (INIS)

    1985-08-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from January 1 to March 31, 1985. The report states that for this reporting period, there was one abnormal occurrence at the nuclear power plants licensed to operate; the event involved a premature criticality during reactor startup. There were three abnormal occurrences at the other NRC licensees. Two events involved diagnostic medical misadministrations and the other event involved unlawful possession of radioactive material. There were four abnormal occurrences reported by an Agreement State (Texas). Three events involved radiation overexposures; the other event involved a well logging source which was apparently stolen, but later was recovered. The report also contains information updating some previously reported abnormal occurrences

  6. Enforcement actions: Significant actions resolved: Quarterly progress report, October--December 1988

    International Nuclear Information System (INIS)

    1989-02-01

    This compilation summarizes significant enforcement actions that have been resolved during one quarterly period (October--December 1988) and includes copies of letters, Notices, and Orders sent by the Nuclear Regulatory Commission to licensees with respect to these enforcement actions. It is anticipated that the information in this publication will be widely disseminated to managers and employees engaged in activities licensed by the NRC, so that actions can be taken to improve safety by avoiding future violations similar to those described in this publication

  7. Report to Congress on abnormal occurrences, July--September 1977. Quarterly report

    International Nuclear Information System (INIS)

    1977-11-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report, the tenth in the series, covers the period July 1 to September 30, 1977. The NRC has determined that during this period there were no abnormal occurrences at the 65 nuclear power plants licensed to operate nor at fuel cycle facilities. There was one abnormal occurrence at other licensee facilities, which involved the loss and recovery of a radioactive source and probable overexposure. This report also contains information updating previously reported abnormal occurrences

  8. Report to Congress on abnormal occurrences: [Quarterly report], January-March 1987

    International Nuclear Information System (INIS)

    1987-10-01

    The Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from January 1 to March 31, 1987. The report states that for this reporting period, there was one abnormal occurrence at the nuclear power plants licensed to operate. The item involved the NRC suspension of power operations of the Peach Bottom Facility due to inattentiveness of the control room staff. There were seven abnormal occurrences at the other NRC licensees. Four involved diagnostic medical misadministrations; the other three involved breakdowns in management controls at three separate industrial radiography licensees. There were two abnormal occurrences reported by the Agreement States. Both involved breakdowns in management controls at industrial radiography licensees. The report also contains information updating some previously reported abnormal occurrences. Appendix A contains the criteria used to define an abnormal occurrence. 13 refs

  9. Report to Congress on abnormal occurrences, January-March 1986. Volume 9, No. 1

    International Nuclear Information System (INIS)

    1986-09-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence as an unscheduled incident or event which the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report covers the period from January 1 to March 31, 1986. The report states that for this reporting period, there were two abnormal occurrences at the nuclear power plants licensed to operate. The events were (1) a loss of power and water hammer event and (2) a loss of integrated control system power and overcooling transient. There were five abnormal occurrences at the other NRC licensees. The events were (1) a rupture of a uranium hexafluoride cylinder and release of gases, (2) a therapeutic medical misadministration, (3) an overexposure to a member of the public from an industrial gauge, (4) a breakdown of management controls at an irradiator facility, and (5) a tritium overexposure and laboratory contamination. There were four abnormal occurrences reported by the Agreement States. Three of the events involved radiation injuries to people working either as radiographers or assistant radiographers; the other event involved contamination of a scrap steel facility. The report also contains information updating some previously reported abnormal occurrences

  10. Geothermal direct-heat utilization assistance. Quarterly project progress report, October--December 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-01-01

    This report summarizes geothermal technical assistance, R and D and technology transfer activities of the Geo-Heat Center at Oregon Institute of Technology for the first quarter of FY-98 (October--December 1997). It describes 216 contacts with parties during this period related to technical assistance with geothermal direct heat projects. Areas dealt with include requests for general information including maps and material for high school debates, and material on geothermal heat pumps, resource and well data, space heating and cooling, greenhouses, aquaculture, equipment, district heating, resorts and spas, industrial applications, electric power and snow melting. Research activities include work on model construction specifications of lineshaft submersible pumps and plate heat exchangers, a comprehensive aquaculture developer package and revisions to the Geothermal Direct Use Engineering and Design Guidebook. Outreach activities include the publication of the Quarterly Bulletin (Vol. 18, No. 4) which was devoted entirely to geothermal activities in South Dakota, dissemination of information mainly through mailings of publications, tours of local geothermal uses, geothermal library acquisition and use, participation in workshops, short courses and technical meetings by the staff, and progress monitor reports on geothermal activities.

  11. Decontamination Systems Information and Research Program. Quarterly report, October--December 1993

    Energy Technology Data Exchange (ETDEWEB)

    1994-02-01

    This report is a summary of the work conducted for the period of October--December 1993 by the West Virginia University for the US DOE Morgantown Energy Technology Center. Research under the program focuses on pertinent technology for hazardous waste clean-up. This report reflects the progress performed on sixteen technical projects encompassed by this program: Systematic assessment of the state of hazardous waste clean-up technologies; Site remediation technologies: (a) Drain-enhanced soil flushing and (b) In situ bio-remediation of organic contaminants; Excavation systems for hazardous waste sites: Dust control methods for in-situ nuclear waste handling; Chemical destruction of polychlorinated biphenyls; Development of organic sensors: Monolayer and multilayer self-assembled films for chemical sensors; Winfield lock and dam remediation; Assessment of technologies for hazardous waste site remediation: Non-treatment technologies and pilot scale test facility implementation; Remediation of hazardous sites with steam reforming; Microbial enrichment for enhancing biodegradation of hazardous organic wastes in soil; Soil decontamination with a packed flotation column; Treatment of volatile organic compounds using biofilters; Use of granular activated carbon columns for the simultaneous removal of organic, heavy metals, and radionuclides; Compact mercuric iodide detector technology development; Evaluation of IR and mass spectrometric techniques for on-site monitoring of volatile organic compounds; and Improved socio-economic assessment of alternative environmental restoration techniques.

  12. Operation aid system upon occurrence of abnormality and display method therefor

    International Nuclear Information System (INIS)

    Kubota, Ryuji; Ueno, Takashi.

    1995-01-01

    The present invention provides an operation aid system for a plant having a large number of systematic equipments upon occurrence of an abnormality and a method of displaying it. Namely, contents of an operation manual upon occurrence of an abnormality is displayed in the form of a flow chart divided into a judging section and an operation section depending on symptoms of plant parameters. Discrimination numbers are provided to a plurality sets of the judging sections and the operation sections respectively. With such procedures, using various measured signals of the plant as inputted data, the discrimination numbers of the judging sections in accordance with the inputted data are stored. Then a flow chart for the judging sections and the operation sections corresponding to the stored discrimination numbers are displayed. Further, an operation manual upon occurrence of abnormalities relevant to the judging sections and the operation sections in the form of writings, and previously determined drawings of relevant systems and trend graphs of the plant are also displayed with reference to the discrimination numbers described above. As a result, both of an appropriate operation manual and relevant information are displayed simultaneously for the occurrence of a plant abnormality and an operator's erroneous operation. (I.S.)

  13. Report to Congress on abnormal occurrences: January--March 1994. Volume 17, No. 1

    International Nuclear Information System (INIS)

    1994-08-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence (AO) as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report provides a description of those events that have been determined to be abnormal occurrences during the period of January 1 through March 31, 1994. This report addresses seven AOs at NRC-licensed facilities. One involved inoperable main steam isolation valves at a boiling water reactor, four involved medical brachytherapy misadministrations, one involved a medical teletherapy misadministration, and one involved four lost reference sources. One AO that was reported by an Agreement State is also discussed; the information is current as of April 25, 1994. This event involved a therapeutic radiopharmaceutical misadministration. The report also contains updates on seven abnormal occurrences previously reported by NRC licensees and one abnormal occurrence previously reported by an Agreement State license. For the period January 1 to March 31, 1994, no new ''Other Events of Interest'' were reported but an update to a therapeutic misadministration previously reported as an ''Other Event of Interest'' is included

  14. Report to Congress on abnormal occurrences, April--June 1994: Volume 17, Number 2

    International Nuclear Information System (INIS)

    1994-10-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence (AO) as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such events to be made to Congress. This report provides a description of those events that have been determined to be abnormal occurrences during the period of April 1 through June 30, 1994. This report addresses seven abnormal occurrences (AOs) at NRC-licensed facilities. Five involved medical brachytherapy misadministrations, one involved a medical teletherapy misadministration, and one involved a medical sodium iodide misadministration. Four AOs were reported by the Agreement States as of August 3, 1994. Two involved medical brachytherapy misadministrations, one involved a radiation burn received by an industrial radiographer, and one involved a lost well logging source. The report also contains updates of seven AOs previously reported by NRC licensees and five AOs previously reported by Agreement State licensees. Three ''Other Events of Interest'' are also reported. One involved a deliberate cover up of an error in a diagnostic radiopharmaceutical administration at an NRC licensee, one involved an Order Suspending License and Demand for Information at an NRC licensee, and one involved an overexposure of an industrial radiographer at an Agreement State licensee

  15. Report to congress on abnormal occurrences. Volume 18, No. 3: Quarterly report, July--September 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-02-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence (AO) as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such occurrences to be made to Congress. This report provides a description of those incidents and events that have been determined to be AOs during the period of July 1 through September 30, 1995. This report addresses three AOs at NRC-licensed facilities. Two involved medical brachytherapy misadministrations and one involved ingestion of radioactive material by research workers. One AO submitted by the Agreement States is included. It involved importation into the United States of a package having excessive radiation. No updates of previously reported AOs are included in this report. No ``Other Events of Interest`` items are being reported.

  16. Enforcement actions: Significant actions resolved reactor licensees. Quarterly progress report, October--December 1994, Volume 13, No. 4, Part 1

    International Nuclear Information System (INIS)

    1995-02-01

    This compilation summarizes significant enforcement actions that have been resolved during one quarterly period (October--December 1994) and includes copies of letters Notices, and Orders sent by the Nuclear Regulatory Commission to reactor licensees with respect to these enforcement actions. It is anticipated that the information in this publication will be widely disseminated to managers and employees engaged in activities licensed by the NRC, so that actions can be taken to improve safety by avoiding future violations similar to those described in this publication

  17. Enforcement actions: Significant actions resolved reactor licensees. Quarterly progress report, October--December 1994, Volume 13, No. 4, Part 1

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-02-01

    This compilation summarizes significant enforcement actions that have been resolved during one quarterly period (October--December 1994) and includes copies of letters Notices, and Orders sent by the Nuclear Regulatory Commission to reactor licensees with respect to these enforcement actions. It is anticipated that the information in this publication will be widely disseminated to managers and employees engaged in activities licensed by the NRC, so that actions can be taken to improve safety by avoiding future violations similar to those described in this publication.

  18. Report to Congress on abnormal occurrences, fiscal year 1997. Volume 20

    International Nuclear Information System (INIS)

    1998-04-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence (AO) as an unscheduled incident or event that the Nuclear Regulatory Commission (NRC) determines to be significant from the standpoint of public health or safety. The Federal Reports Elimination and Sunset Act of 1995 requires that AOs be reported to Congress on an annual basis. This report includes those events that NRC has determined to be AOs during fiscal year 1997. This report addresses two AOs at NRC licensed facilities. One involved an event at a nuclear power plant, and one involved materials overexposure. The report also addresses four Agreement State AOs. Two of these AOs involved overexposures and two involved radiopharmaceutical misadministrations. In addition, Appendix C of the report includes five events of loss of control of licensed materials

  19. Report to Congress on abnormal occurrences, fiscal year 1997. Volume 20

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-04-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence (AO) as an unscheduled incident or event that the Nuclear Regulatory Commission (NRC) determines to be significant from the standpoint of public health or safety. The Federal Reports Elimination and Sunset Act of 1995 requires that AOs be reported to Congress on an annual basis. This report includes those events that NRC has determined to be AOs during fiscal year 1997. This report addresses two AOs at NRC licensed facilities. One involved an event at a nuclear power plant, and one involved materials overexposure. The report also addresses four Agreement State AOs. Two of these AOs involved overexposures and two involved radiopharmaceutical misadministrations. In addition, Appendix C of the report includes five events of loss of control of licensed materials.

  20. Advanced reactor safety research quarterly report, October-December 1982. Volume 24

    Energy Technology Data Exchange (ETDEWEB)

    None

    1984-04-01

    This report describes progress in a number of activities dealing with current safety issues relevant to both light water reactors (LWRs) and breeder reactors. The work includes a broad range of experiments to simulate accidental conditions to provide the required data base to understand important accident sequences and to serve as a basis for development and verification of the complex computer simulation models and codes used in accident analysis and licensing reviews. Such a program must include the development of analytical models, verified by experiment, which can be used to predict reactor and safety system performance under a broad variety of abnormal conditions. Current major emphasis is focused on providing information to NRC relevant to (1) its deliberations and decisions dealing with severe LWR accidents and (2) its safety evaluation of the proposed Clinch River Breeder Reactor.

  1. Report to Congress on abnormal occurrences: April--June 1995. Volume 18, Number 2

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-10-01

    Section 208 of the Energy Reorganization Act of 1974 identifies an abnormal occurrence (AO) as an unscheduled incident or event that the Nuclear Regulatory Commission determines to be significant from the standpoint of public health or safety and requires a quarterly report of such occurrences to be made to Congress. This report provides a description of those incidents and events that have been determined to be AOs during the period of April 1 through June 30, 1995. This report addresses five AOs at NRC-licensed facilities. One involved a reactor coolant system blowdown at a pressurized water reactor (PWR) nuclear power plant, one involved a previously unidentified path for the potential release of radioactivity at a PWR nuclear power plant, two involved medical brachytherapy misadministrations, and one involved a medical therapeutic radiopharmaceutical misadministration. Four AOs submitted by the Agreement States are included. One involved a medical teletherapy misadministration, two involved medical brachytherapy misadministrations, and one involved the overexposure of personnel at a medical center. The report also contains an update of one AO previously reported by an NRC licensee, and two AOs previously reported by the Agreement States. No ``Other Events of Interest`` items are being reported.

  2. Report to Congress on abnormal occurrences: Fiscal year 1996. Volume 19

    International Nuclear Information System (INIS)

    1997-04-01

    Section 208 of the Energy Reorganization Act of 1974 (PL 93-438) identifies an abnormal occurrence (AO) as an unscheduled incident or event that the Nuclear Regulatory Commission (NRC) determines to be significant from the standpoint of public health or safety. The Federal Reports Elimination and Sunset Act of 1995 (PL 104-66) requires that AOs be reported to Congress on an annual basis. This report includes those events that NRC determined to be AOs during fiscal year 1996. This report addresses eighteen AOs at NRC-licensed facilities. Two involved events at nuclear power plants, eleven involved medical brachytherapy misadministrations, and five involved radiopharmaceutical misadministrations. Eight AOs submitted by the Agreement States are included. One involved stolen radiography cameras, one involved a ruptured source, one involved release of radioactive material while being transported, one involved a lost source, two involved medical brachytherapy misadministrations, and two involved radiopharmaceutical misadministrations. Four updates of previously reported AOs are included in this report. Three ''Other Events of Interest'' events are being reported, and one previously reported ''Other Events of Interest'' event is being updated

  3. Report to Congress on abnormal occurrences: Fiscal year 1996. Volume 19

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-04-01

    Section 208 of the Energy Reorganization Act of 1974 (PL 93-438) identifies an abnormal occurrence (AO) as an unscheduled incident or event that the Nuclear Regulatory Commission (NRC) determines to be significant from the standpoint of public health or safety. The Federal Reports Elimination and Sunset Act of 1995 (PL 104-66) requires that AOs be reported to Congress on an annual basis. This report includes those events that NRC determined to be AOs during fiscal year 1996. This report addresses eighteen AOs at NRC-licensed facilities. Two involved events at nuclear power plants, eleven involved medical brachytherapy misadministrations, and five involved radiopharmaceutical misadministrations. Eight AOs submitted by the Agreement States are included. One involved stolen radiography cameras, one involved a ruptured source, one involved release of radioactive material while being transported, one involved a lost source, two involved medical brachytherapy misadministrations, and two involved radiopharmaceutical misadministrations. Four updates of previously reported AOs are included in this report. Three ``Other Events of Interest`` events are being reported, and one previously reported ``Other Events of Interest`` event is being updated.

  4. Quarterly progress report for the Chemical and Energy Research Section of the Chemical Technology Division: October-December 1997

    Energy Technology Data Exchange (ETDEWEB)

    Jubin, R.T.

    1999-02-01

    This report summarizes the major activities conducted in the Chemical and Energy Research Section of the Chemical Technology Division at Oak Ridge National Laboratory (ORNL) during the period October--December 1997. The section conducts basic and applied research and development in chemical engineering, applied chemistry, and bioprocessing, with an emphasis on energy-driven technologies and advanced chemical separations for nuclear and waste applications. The report describes the various tasks performed within six major areas of research: Hot Cell Operations, Process Chemistry and Thermodynamics, Separations and Materials Synthesis, Fluid Structure and Properties, Biotechnology Research, and Molecular Studies. The name of a technical contact is included with each task described, and readers are encouraged to contact these individuals if they need additional information. Activities conducted within the area of Hot Cell Operations included efforts to optimize the processing conditions for Enhanced Sludge Washing of Hanford tank sludge, the testing of candidate absorbers and ion exchangers under continuous-flow conditions using actual supernatant from the Melton Valley Storage Tanks, and attempts to develop a cesium-specific spherical inorganic sorbent for the treatment of acidic high-salt waste solutions. Within the area of Process Chemistry and Thermodynamics, the problem of solids formation in process solutions from caustic treatment of Hanford sludge was addressed and experimental collaborative efforts with Russian scientists to determine the solidification conditions of yttrium barium, and copper oxides from their melts were completed.

  5. Occurrence of Sperm Abnormality of Beef Cattle at Several Artificial Insemination Centers in Indonesia

    Directory of Open Access Journals (Sweden)

    B Purwantara

    2010-01-01

    Full Text Available In the most species studied sperm abnormalities have long been associated with male infertility and sterility. This study evaluated the sperm morphology (normality and abnormality of beef cattle at several Artificial Insemination centers in Indonesia. Total of 142 bulls were used in this study; an ejaculate from each bull was examined. A drop of semen was placed on 3-4 glass slides, and smears were prepared and air-dried. The smears were stained with carbolfluchsin-eosin (Williams stain. Types of morphological abnormalities were recorded from 500 cells on each sample. It was recorded that 77.46% samples had low primary sperm abnormalities (10% was found in 5.63% samples. Pear shaped was the most frequently type of abnormality found on examined samples (2.24 ± 2.94%; while double head was the lowest (0.01 ± 0.04%. (Animal Production 12(1: 44-49 (2010 Key words : sperm abnormality, beef catlle, artificial insemination center

  6. Occurrence of maxillary sinus abnormalities detected by cone beam CT in asymptomatic patients

    Directory of Open Access Journals (Sweden)

    Rege Inara Carneiro

    2012-08-01

    Full Text Available Abstract Background Although cone beam computed tomography (CBCT images of the maxillofacial region allow the inspection of the entire volume of the maxillary sinus (MS, identifying anatomic variations and abnormalities in the image volume, this is frequently neglected by oral radiologists when interpreting images of areas at a distance from the dentoalveolar region, such as the full anatomical aspect of the MS. The aim of this study was to investigate maxillary sinus abnormalities in asymptomatic patients by using CBCT. Methods 1113 CBCT were evaluated by two examiners and identification of abnormalities, the presence of periapical lesions and proximity to the lower sinus wall were recorded. Data were analyzed using descriptive statistics, chi-square tests and Kappa statistics. Results Abnormalities were diagnosed in 68.2% of cases (kappa = 0.83. There was a significant difference between genders (p Conclusions Abnormalities in maxillary sinus emphasizes how important it is for the dentomaxillofacial radiologist to undertake an interpretation of the whole volume of CBCT images.

  7. Occurrence of cancer in a cohort of 183 persons with constitutional chromosome 7 abnormalities

    DEFF Research Database (Denmark)

    Hasle, H; Olsen, J H; Hansen, J

    1998-01-01

    with constitutional abnormalities involving chromosome 7, including 16 patients with Williams syndrome. By linkage to the Danish Cancer Registry, we found five persons with cancer, including one thyroid carcinoma, three carcinomas of the digestive tract, and one malignant melanoma. There were no cases of leukemia......Cytogenetic abnormalities in human malignancies frequently involve chromosome 7. The existence of several tumor suppressor genes on the long arm of chromosome 7 has been suggested in both epithelial and hematologic malignancies. From the Danish Cytogenetic Register, we identified 183 persons...

  8. Occurrence of abnormal starfish Astropecten indicus (Doderlein, 1888 (Echinodermata: Astroidea along Southeast coast of India

    Directory of Open Access Journals (Sweden)

    PRABHU kOLANDHASAMY

    2012-08-01

    Starfish Astropecten indicus was collected from bycatch landings at Mudasalodai fishing harbour, Tamil Nadu (India in November 2011. Totally 134 specimens collected among three specimens (2,2% have abnormally developed four and six arms. Normally, A. indicus has five arms and the deviation from pentamerism is a rare phenomenon in starfishes. The present observations suggest that deviations from pentamerism are not a heritable character but are a consequence of environmental perturbations on the metamorphosis of larvae and/or abnormal regeneration of arms.

  9. Occurrence of abnormal starfish Astropecten indicus (Doderlein, 1888 (Echinodermata: Astroidea along Southeast coast of India

    Directory of Open Access Journals (Sweden)

    K. Prabhu

    2012-11-01

    Full Text Available Starfish Astropecten indicus was collected from bycatch landings at Mudasalodai fishing harbour, Tamil Nadu (India in November 2011. Totally 134 specimens collected among three specimens (2,2% have abnormally developed four and six arms. Normally, A. indicus has five arms and the deviation from pentamerism is a rare phenomenon in starfishes. The present observations suggest that deviations from pentamerism are not a heritable character but are a consequence of environmental perturbations on the metamorphosis of larvae and/or abnormal regeneration of arms.

  10. Occurrence and type of chromosomal abnormalities in consecutive malignant monoclonal gammopathies: correlation with survival

    DEFF Research Database (Denmark)

    Lisse, I M; Drivsholm, A; Christoffersen, P

    1988-01-01

    Chromosome studies were done on 73 patients with multiple myeloma and three patients with plasma cell leukemia. Eighteen of 76 patients (24%) had chromosomally abnormal clones, including all three patients with PCL. The most common anomalous chromosomes were #1, #14, and #12. In addition, i(17q) ...

  11. Occurrence of cancer in a cohort of 183 persons with constitutional chromosome 7 abnormalities

    DEFF Research Database (Denmark)

    Hasle, H; Olsen, J H; Hansen, J

    1998-01-01

    with constitutional abnormalities involving chromosome 7, including 16 patients with Williams syndrome. By linkage to the Danish Cancer Registry, we found five persons with cancer, including one thyroid carcinoma, three carcinomas of the digestive tract, and one malignant melanoma. There were no cases of leukemia....... The overall risk of developing cancer was not increased....

  12. Pulmonary dysfunction in advanced liver disease: frequent occurrence of an abnormal diffusing capacity

    International Nuclear Information System (INIS)

    Hourani, J.M.; Bellamy, P.E.; Tashkin, D.P.; Batra, P.; Simmons, M.S.

    1991-01-01

    Abnormalities in pulmonary function have been reported in association with chronic liver disease of varied etiology. The aim of this study was to better define the frequency and nature of these abnormalities in patients who were being evaluated for liver transplantation. We performed a battery of pulmonary function tests and chest radiographs in 116 consecutive patients (50 men, 66 women; aged 19 to 70 years, mean 44.6 years) with severe advanced liver disease who were hospitalized specifically for evaluation for possible orthotopic liver transplantation and were able to perform technically satisfactory tests. In 17 patients, quantitative whole-body technetium-99m macroaggregated albumin perfusion scanning was also performed for assessment of possible right-to-left shunting through intrapulmonary vascular dilatations. The most commonly affected test of lung function was the single-breath diffusing capacity for carbon monoxide (DLCO), which was abnormal in 48%, 45%, and 71% of patients who never smoked, former smokers, and current smokers, respectively. Ventilatory restriction was noted in 25% of all patients, airflow obstruction (reduced ratio of forced expiratory volume in 1 second to forced vital expiratory volume in 1 second to forced vital capacity) in only 3%, and a widened alveolar-arterial oxygen gradient in 45%. Diffusion impairment was accompanied by a restrictive defect in only 35% of the patients and by an abnormally widened alveolar-arterial oxygen gradient in 60%. When diffusion impairment was accompanied by an oxygenation defect, it was also associated with a significantly increased right-to-left shunt fraction (mean 24.9%) assessed from quantitative whole-body perfusion imaging

  13. Discriminant function analysis of the occurrence risk of abnormal electrocardiogram in thyroidectomized differentiated thyroid carcinoma patients with short-term overt hypothyroidism.

    Science.gov (United States)

    Guan, Feng; Zhao, Hongguang; Jiao, Benzheng; Liu, Shanshan; Sa, Ri; Hou, Sen; Lin, Qiuyu; Wang, Qi; Lin, Chenghe

    2016-02-01

    The common form and risk factors of electrocardiogram (ECG) abnormality in thyroidectomized differentiated thyroid carcinoma (DTC) patients with short-term overt hypothyroidism were investigated and some discriminant formulas for forecasting the occurrence of abnormal ECG in this specific population were deduced in this study. A total of 260 thyroidectomized DTC patients were retrospectively reviewed, 67 of whom had abnormal ECG and 193 normal ECG after short-term (3 weeks) levothyroxine (L-T4) withdrawal. One-way ANOVA, Spearman's rank correlation analysis and discriminant function analysis were performed using data from these DTC patients. A flat or inverted T wave in inferior myocardial and left ventricular wall leads was the most common abnormal ECG finding in short-term overt hypothyroidism. Statistical analyses showed that age, interval, TSH-end (The serum hormothyrin level at the end of L-T4 withdrawal for 3 weeks), and TSH-vel (The average ascending velocity of serum hormothyrin level during L-T4 withdrawal for 3 weeks) were statistically significant and positively correlated with the occurrence of abnormal ECG. Meanwhile, TSH-vel showed the highest correlation coefficient (r = 0.358, p = 0.000). The formulas, especially deduced from age, interval and TSH-vel, could discriminate patients with abnormal ECG or not as high as 77.6 and 70.5%, respectively (resubstitution accuracy: 72.3%). The thyroidectomized DTC patients undergoing short-term L-T4 withdrawal before their first radioiodine ablative therapy, who had one or more of the above-mentioned risk factors, are likely to show abnormal ECG findings. The formulas from discriminant function analysis may be helpful for predicting patients with abnormal ECG with short-term L-T4 withdrawal and allow appropriate medical intervention beforehand.

  14. AFRRI Reports October - December 1990

    Science.gov (United States)

    1991-01-01

    Irradiated Mammalian Cells to-Hydroxyapatite Columns1 KATHRYN D. HELD,* JANE MIRRO,* DEBORAH C. MELDER,t WILLIAM F. BLAKELYf NANCY L. OLEINICK,§ AND SONG...Lewis R A. Austen K F. Corey D~evelopment of a model systemn-to study E J. Brenner 13 F, Renal and systemic keukotricnec-induced modification of

  15. Fires. October-December 08

    Science.gov (United States)

    2008-10-01

    illustrated American denazification in action. In August 1945, Nuremberg’s military governors forced the Chamber of Handicraft for Middle Franconia to...Chamber of Handicraft File, Box 16-2/13, RG 260; MGLS Nuremberg, AHR, Apr 1945-Jun 1946, Monthly and Weekly Reports File, Box 8-3/13, RG 260. 15. OMGN...Denazification, Denazification File, Box 112-1/9, RG 260. 17. Ibid. 18. Georg Lämmerman Statement, 11 Aug 1945, Chamber of Handicraft File, Box 16-2/13

  16. Laboratory tests in patients treated with isotretinoin: occurrence of liver and muscle abnormalities and failure of AST and ALT to predict liver abnormality.

    Science.gov (United States)

    Webster, Guy F; Webster, Timothy G; Grimes, Lorraine R

    2017-05-15

    Current laboratory monitoring may not be optimal. A retrospective chart review was performed on thelaboratory results of 246 patients who were treated with isotretinoin for acne over a 9-year period. Tests obtained were CBC, lipid panel, AST, ALT, CK, GGT,and C-reactive protein. Thirty-five patients had an elevated AST and 35 of these had an elevated CK; 32 had an elevated ALT and 11 of these had an elevated CK. Thirteen patients had an elevated GGT; in 5 this was the only abnormality, whereas 8 had a GGT elevation accompanied by an elevated AST or ALT. Two had an elevated GGT and an elevated CK with normal AST and ALT. Fifty-two patients had a single episode of elevated CK, of which 22 were female. However, 57 had multiple CK elevations and only one was female. Thirty-five patients had CK elevations <2 times normal; 38 had levels between 2 and 3 times normal, 18 had levels between 3 and 4 times normal, and 18 had levels greater than 4 times normal. We suggest that ALT and AST are not useful for monitoring isotretinoin therapy and that GGT and CK may be of greater value in managing patients.

  17. Personality traits neuroticism and openness as well as early abnormal eye conditions as predictors of the occurrence of eye problems in adulthood

    Directory of Open Access Journals (Sweden)

    Helen Cheng

    2017-06-01

    Full Text Available This study set out to examine the associations between psychological, biomedical and socio-demographic factors in childhood and adulthood associated with the occurrence of self-reported eye conditions in adulthood. In total, 5706 participants with complete data on parental social class at birth, cognitive ability accessed at age 11 years, abnormal eye conditions by the age of 16 years diagnosed by medical professionals, educational qualifications obtained at age 33 years, the Big Five Factor personality traits measured at age 50 years, current occupational levels and self-reported eye conditions at age 54 years were included in the study. Logistic regression analysis showed that among all the factors examined early abnormal eye conditions, traits neuroticism and openness as well as sex were the significant predictors of self-reported eye conditions in adulthood.

  18. The occurrence of apoptosis, abnormal mitoses, cells dying in mitosis and micronuclei in a human melanoma xenograft exposed to single dose irradiation

    International Nuclear Information System (INIS)

    Falkvoll, K.H.; Norske Radiumhospital, Oslo)

    1990-01-01

    The mechanisms of cell loss, the cell proliferation and the immediate growth response were investigated in a human melanoma xenograft given single dose irradiation with 7.5 Gy and 15.0 Gy, respectively. The frequencies of apoptotic cells, mitoses, abnormal mitoses, cells dying in mitosis and micronuclei, were scored in histological sections. In the untreated xenograft, the occurrence of micronuclei and abnormal mitoses indicated the presence of reproductively dead cells. Cell loss manifested itself through the appearance of apoptosis, cells dying in mitosis and necrosis. After irradiation, the cell proliferation was temporarily inhibited due to a radiation induced division delay. When proliferation resumed, there was a dose-dependent increase in the frequencies of abnormal mitoses and micronuclei and thus in the fraction of reproductively dead cells. The incidence of cell loss through apoptosis and cells dying in mitosis also increased. This cell loss probably reduced transiently the fraction of reproductively dead cells, and accounted for the reduced amount of tumour cells the first days after 15.0 Gy irradiation. The incidence of apoptotic cell loss and micronuclei decreased, and the incidence of normal mitoses increased when tumour growth resumed. (orig.) [de

  19. LLE Review 101 (October-December 2004)

    Energy Technology Data Exchange (ETDEWEB)

    Shmayda, W. T. [editor

    2005-03-01

    This volume of the LLE Review, covering October to December 2004, highlights the significance of shaped adiabats to inertial confinement fusion. Theory suggests that inertial confinement fusion (ICF) capsules compressed by shaped adiabats will exhibit improved hydrodynamic stability.

  20. Southwestern Power Administration Update, October- December 2004

    Energy Technology Data Exchange (ETDEWEB)

    None

    2004-12-01

    On October 29, 2004, Southwestern and Southwest Power Pool, Inc. (SPP) reached agreement on interim arrangements to be implemented after the October 31, 2004, expiration of the membership agreement between the two parties. According to Jim McDonald, Director of Southwestern’s Division of Customer Service, the interim agreement forged between Southwestern and SPP seeks to minimize impacts to SPP as well as to Southwestern and its customers while Southwestern and SPP work on a seams/coordination agreement to succeed the expired membership agreement.

  1. Quarterly coal report, October--December 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-05-01

    The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. This report presents detailed quarterly data for October through December 1996 and aggregated quarterly historical data for 1990 through the third quarter of 1996. Appendix A displays, from 1988 on, detailed quarterly historical coal imports data. To provide a complete picture of coal supply and demand in the US, historical information has been integrated in this report. 8 figs., 72 tabs.

  2. Quarterly coal report, October--December 1998

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1999-07-01

    The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. This report presents detailed quarterly data for October through December 1998 and aggregated quarterly historical data for 1992 through the third quarter of 1998. Appendix A displays, from 1992 on, detailed quarterly historical coal imports data. 58 tabs.

  3. Quarterly coal report, October--December 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-05-01

    The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. The data presented in the QCR are collected and published by the Energy Information Administration (EIA) to fulfill data collection and dissemination responsibilities. This report presents detailed quarterly data for october through December 1997 and aggregated quarterly historical data for 1991 through the third quarter of 1997. Appendix A displays, from 1991 on, detailed quarterly historical coal imports data, as specified in Section 202 of the energy Policy and Conservation Amendments Act of 1985 (Public Law 99-58). Appendix B gives selected quarterly tables converted to metric tons. To provide a complete picture of coal supply and demand in the US, historical information has been integrated in this report. 8 figs., 73 tabs.

  4. Quarterly coal report, October--December 1994

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-05-23

    The Quarterly Coal Report (QCR) provides comprehensive information about US coal production, distribution, exports, imports, receipts, prices, consumption, and stocks to a wide audience, including Congress, Federal and State agencies, the coal industry, and the general public. Coke production, consumption, distribution, imports, and exports data are also provided. The data presented in the QCR are collected and published by the Energy Information Administration (EIA) to fulfill data collection and dissemination responsibilities as specified in the Federal Energy Administration Act of 1974 (Public Law 93-275), as amended. This report presents detailed quarterly data for October through December 1994 and aggregated quarterly historical data for 1986 through the third quarter of 1994. Appendix A displays, from 1986 on, detailed quarterly historical coal imports data, as specified in Section 202 of the Energy Policy and Conservation Amendments Act of 1985 (Public Law 99-58). Appendix B gives selected quarterly tables converted to metric tons.

  5. LLE Review 121 (October-December 2009)

    International Nuclear Information System (INIS)

    Anderson, K.S.

    2010-01-01

    This issue has the following articles: (1) Demonstration of the Highest Deuterium-Tritium Areal Density Using Triple-Picket Cryogenic Designs on OMEGA; (2) High-Precision Measurements of the Equation of State of Hydrocarbons at 1 to 10 Mbar Using Laser-Driven Shock Waves; (3) A Generalized Measurable Ignition Condition for Inertial Confinement Fusion (4) In-Situ Detection and Analysis of Laser-Induced Damage on a 1.5-m Multilayer-Dielectric Grating Compressor for High-Energy, Petawatt-Class Laser Systems; (5) Probing High-Areal-Density (ρR) Cryogenic-DT Implosions Using Down-Scattered Neutron Spectra Measured by the Magnetic Recoil Spectrometer; (6) Strong-Coupling and Degeneracy Effects in Inertial Confinement Fusion Implosions; and (7) Neutron-Induced Nucleation Inside Bubble Chambers Using Freon 115 as the Active Medium.

  6. Congenital Abnormalities

    Science.gov (United States)

    ... Stages Ages and Stages Prenatal Baby (0-12 mos.) Toddler 1-3yrs. Preschool 3-5yrs Grade School ... Categories of Congenital Abnormalities Chromosome Abnormalities Chromosomes are structures that carry genetic material inherited from one generation ...

  7. Meiotic abnormalities

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-12-31

    Chapter 19, describes meiotic abnormalities. These include nondisjunction of autosomes and sex chromosomes, genetic and environmental causes of nondisjunction, misdivision of the centromere, chromosomally abnormal human sperm, male infertility, parental age, and origin of diploid gametes. 57 refs., 2 figs., 1 tab.

  8. Abnormal sound detection device

    International Nuclear Information System (INIS)

    Yamada, Izumi; Matsui, Yuji.

    1995-01-01

    Only components synchronized with rotation of pumps are sampled from detected acoustic sounds, to judge the presence or absence of abnormality based on the magnitude of the synchronized components. A synchronized component sampling means can remove resonance sounds and other acoustic sounds generated at a synchronously with the rotation based on the knowledge that generated acoustic components in a normal state are a sort of resonance sounds and are not precisely synchronized with the number of rotation. On the other hand, abnormal sounds of a rotating body are often caused by compulsory force accompanying the rotation as a generation source, and the abnormal sounds can be detected by extracting only the rotation-synchronized components. Since components of normal acoustic sounds generated at present are discriminated from the detected sounds, reduction of the abnormal sounds due to a signal processing can be avoided and, as a result, abnormal sound detection sensitivity can be improved. Further, since it is adapted to discriminate the occurrence of the abnormal sound from the actually detected sounds, the other frequency components which are forecast but not generated actually are not removed, so that it is further effective for the improvement of detection sensitivity. (N.H.)

  9. Familial eccrine syringofibroadenomatosis with associated ophthalmologic abnormalities.

    Science.gov (United States)

    Chen, S; Palay, D; Templeton, S F

    1998-08-01

    Eccrine syringofibroadenoma (ESFA) is a rare benign adnexal tumor, generally with sporadic occurrence and not linked to other diseases. Only one familial occurrence of ESFA has been reported. We describe the familial occurrence of multiple ESFAs in a father and his two sons, all of whom also had similar eyelid abnormalities and progressive corneal scarring. This description of hereditary ESFA is the first to link ESFA with periocular and ocular abnormalities.

  10. Walking abnormalities

    Science.gov (United States)

    ... include: Arthritis of the leg or foot joints Conversion disorder (a mental disorder) Foot problems (such as a ... injuries. For an abnormal gait that occurs with conversion disorder, counseling and support from family members are strongly ...

  11. Environmental occurrences

    International Nuclear Information System (INIS)

    Black, D.G.

    1995-01-01

    This section of the 1994 Hanford Site Environmental Report summarizes the onsite and offsite releases of radioactive and regulated materials. The specific agencies notified of the releases depended on the type, amount, and location of the individual occurrences. The more significant of these off-normal environmental occurrences are summarized in this section

  12. Geothermal Loop Experimental Facility. Quarterly report, October-December 1978

    Energy Technology Data Exchange (ETDEWEB)

    Anastas, G.; Bischoff, W.S.; Bishop, H.K.

    1979-01-01

    The Geothermal Loop Experimental Facility (GLEF) was modified in April 1978 from a four stage flash/binary process to a two stage cycle for the extraction of energy from a high temperature, high salinity, liquid-dominated resource. The overhaul and cleaning during October and pigging problems which led to a limited shutdown in December are discussed. Reservoir assessment, including production and injection wells, are discussed. Results of tests that were accomplished are included. Laboratory data obtained for steam, brine, binary and cooling water, and scale are indicated. Any equipment that required repairs or modifications to equipment and the clarifier/media filter are discussed. The status of the feasibility and surge studies is covered. (MHR)

  13. Quarterly Progress Report Fuels Development Operation: October - December 1959

    Energy Technology Data Exchange (ETDEWEB)

    Cadwell, J. J. [Hanford Site (HNF), Richland, WA (United States). Fuels Development Operation; Tobin, J. C. [Hanford Site (HNF), Richland, WA (United States). Fuels Development Operation. Physical Metallurgy; Minor, J. E. [Hanford Site (HNF), Richland, WA (United States). Fuels Development Operation. Fuel Element Design; Evans, E. A. [Hanford Site (HNF), Richland, WA (United States). Fuels Development Operation. Ceramic Fuels Development; Bush, S. H. [Hanford Site (HNF), Richland, WA (United States). Fuels Development Operation. Fuels Fabrication Development

    1960-01-15

    The present Quarterly Report is the continuation of a series issued by the new Fuels Development operation. Reports in this series combine portions of the quarterly reports by the former Metallurgy Research and Fuel Technology Sub-Sections. Work reported includes research conducted by the Physical Metallurgy Operation, and research and development conducted by Fuel Design, Fuels Fabrication Development and Ceramic Fuels Development Operations. Studies formerly reported by the Radiometallurgy, Metallography, and Welding and Corrosion Units, in addition to portions of the Fuels Technology work, are reported elsewhere.

  14. Special chemical analysis. Quarterly report, October--December 1971

    Energy Technology Data Exchange (ETDEWEB)

    Sandoval, J.

    1997-09-01

    Thin-layer chromatography, TLC, is an indispensable tool to those involved with high explosives, e.g., the research chemist. Through TLC evaluation he is able to establish the purity of the products he is synthesizing or of the reagents involved in the synthesis.

  15. Tidd PFBC demonstration project. Quarterly report, October--December 1993

    Energy Technology Data Exchange (ETDEWEB)

    1994-01-01

    This is the 27th Technical Progress Report submitted to the Department of Energy in connection with the Cooperative Agreement between the DOE and the Ohio Power Company for the Tidd PFBC Demonstration Plant. This report covers the period from October 1, 1993 to December 31, 1993. Major activities during this period involve: (1) The unit operated for 720 hours on coal. (2) There were five gas turbine starts, five bed preheater starts, and three operating periods on coal fire. (3) During the quarter, total gross generation was 36,672 MWH, the peak unit output for one hour was 64 MWH, and the coal consumption was 17,251 tons. (4) Six performance tests were run during this quarter. (5) The unit was tested with four sorbent feed points. (6) The gas turbine low pressure compressor was disassembled to repair cracks in the stationary guide vanes; and (7) a request was sent to the DOE requesting funding for an additional year of operation. Major items planned for the next period include: (a) Continuation of sorbent utilization tests at various bed levels and sulfur retention values and with different coals and adsorbents; and (b) operation at full load.

  16. Bibliography of Soviet Laser Developments, No. 18, October - December 1974

    Science.gov (United States)

    1975-04-25

    in media of diverse geometry. OiS, v. 37, no. 6, 1974, 1126-1133. 4. SyHtem» 424, Abramov , K. D. , V. I. Lakhno, and...Meaaurement of Laser Parameters 524. Abramov , V. Ya. , V. G. Leont’yev, G. S. Sedov, and S. A. Smorchkova (0). Study of...AbAKUMOVA, I, N. ADDIII.LAYKV, A.(i. ABPiri I.IN, Sll. A. ABHAMOV, K.D. ABRAMOV , V. YA. ABRAMYAN, 1 . E. AERObIMüV, (;. N

  17. Waste Management Program. Technical progress report, October-December 1982

    International Nuclear Information System (INIS)

    1983-07-01

    This quarterly report provides current information on operations and development programs for the management of radioactive wastes from operation of the Savannah River Plant and offplant participants. The studies on environmental and safety assessments, in situ storage or disposal, waste from development and characterization, process and equipment development, and low-level waste management are a part of the Long-Term Waste Management Technology Program. The following studies are reported for the SR Interim Waste Operations Program: surveillance and maintenance, waste concentration, low-level effluent waste, tank replacement/waste transfer, and solid waste storage and related activities

  18. Army AL&T, October-December 2007

    Science.gov (United States)

    2007-12-01

    rooms, two Intensive Care Units, seven Intensive Care Wings and dental capabilities. The early entry hospital element (44 beds) can quickly deploy...acquisition center as “the cement that holds the LCMC together.” “Your business is all about Soldiers, your business is not about spending money, it...approach, which ex- amines a company’s ability to deliver the best possible serv- ice to the government. In February 2007, the LOGCAP IV planning support con

  19. H-division quarterly report, October--December 1977

    International Nuclear Information System (INIS)

    1978-01-01

    The Theoretical EOS Group develops theoretical techniques for describing material properties under extreme conditions and constructs equation-of-state (EOS) tables for specific applications. Work this quarter concentrated on a Li equation of state, equation of state for equilibrium plasma, improved ion corrections to the Thomas--Fermi--Kirzhnitz theory, and theoretical estimates of high-pressure melting in metals. The Experimental Physics Group investigates properties of materials at extreme conditions of pressure and temperature, and develops new experimental techniques. Effort this quarter concerned the following: parabolic projectile distortion in the two-state light-gas gun, construction of a ballistic range for long-rod penetrators, thermodynamics and sound velocities in liquid metals, isobaric expansion measurements in Pt, and calculation of the velocity--mass profile of a jet produced by a shaped charge. Code development was concentrated on the PELE code, a multimaterial, multiphase, explicit finite-difference Eulerian code for pool suppression dynamics of a hypothetical loss-of-coolant accident in a nuclear reactor. Activities of the Fluid Dynamics Group were directed toward development of a code to compute the equations of state and transport properties of liquid metals (e.g. Li) and partially ionized dense plasmas, jet stability in the Li reactor system, and the study and problem application of fluid dynamic turbulence theory. 19 figures, 5 tables

  20. LLE Review Quarterly Report October - December 2011. Volume 129

    Energy Technology Data Exchange (ETDEWEB)

    Shvydky, Alex [Univ. of Rochester, NY (United States). Lab. for Laser Energetics

    2011-12-01

    This volume of LLE Review, covering October–December 2011, features “Crossed-Beam Energy Transfer in Direct-Drive Implosions” by I. V. Igumenshchev, W. Seka, D. H. Edgell, D. T. Michel, D. H. Froula, R. S. Craxton, R. Follett, J. H. Kelly, T. Z. Kosc, J. F. Myatt, T. C. Sangster, A. Shvydky, S. Skupsky, and C. Stoeckl (LLE); V. N. Goncharov and A. V. Maximov (LLE and Department of Mechanical Engineering, U. of Rochester); L. Divol and P. Michel (LLNL); and R. L. McCrory and D. D. Meyerhofer (LLE and Departments of Mechanical Engineering and Physics, U. of Rochester). In this article (p. 1), direct-drive–implosion experiments on the OMEGA laser [T. R. Boehly et al., Opt. Commun. 133, 495 (1995)] have shown discrepancies between simulations of the scattered (non-absorbed) light levels and measured ones that indicates the presence of a mechanism that reduces laser coupling efficiency by 10% to 20%. The authors attribute this degradation in laser coupling to crossed-beam energy transfer (CBET)— which is electromagnetically seeded—low-gain stimulated Brillouin scattering. CBET scatters energy from the central portion of the incoming light beam to outgoing light, reducing the laser absorption and hydrodynamic efficiency of implosions. One-dimensional hydrodynamic simulations including CBET show good agreement with all observables in implosion experiments on OMEGA. Three strategies to mitigate CBET and improve laser coupling are considered: the use of narrow beams, multicolor lasers, and higher-Z ablators. Experiments on OMEGA using narrow beams have demonstrated improvements in implosion performance.

  1. Energy Information Administration quarterly coal report, October--December 1992

    Energy Technology Data Exchange (ETDEWEB)

    1993-05-21

    The United States produced just over 1 billion short tons of coal in 1992, 0.4 percent more than in 1991. Most of the 4-million-short-ton increase in coal production occurred west of the Mississippi River, where a record level of 408 million short tons of coal was produced. The amount of coal received by domestic consumers in 1992 totaled 887 million short tons. This was 7 million short tons more than in 1991, primarily due to increased coal demand from electric utilities. The average price of delivered coal to each sector declined by about 2 percent. Coal consumption in 1992 was 893 million short tons, only 1 percent higher than in 1991, due primarily to a 1-percent increase in consumption at electric utility plants. Consumer coal stocks at the end of 1992 were 163 million short tons, a decrease of 3 percent from the level at the end of 1991, and the lowest year-end level since 1989. US coal exports fell 6 percent from the 1991 level to 103 million short tons in 1992. Less coal was exported to markets in Europe, Asia, and South America, but coal exports to Canada increased 4 million short tons.

  2. Aespoe Hard Rock Laboratory. Status Report October - December 2008

    International Nuclear Information System (INIS)

    2009-03-01

    The Aespoe Hard Rock Laboratory (HRL) constitutes an important part of SKB's work to design and construct a geological repository for spent nuclear fuel and to develop and test methods for characterisation of a suitable site. The plans for SKB's research and development of technique during the period 2008-2013 are presented in SKB's RDandD-Programme 2007 /SKB 2007/. The information given in the RDandD-Programme related to Aespoe HRL is annually detailed in the Aespoe HRL Planning Report /SKB 2008/. This Aespoe HRL Status Report is a collection of the main achievements obtained during the fourth quarter of 2008

  3. Aespoe Hard Rock Laboratory. Status Report October - December 2008

    Energy Technology Data Exchange (ETDEWEB)

    2009-03-15

    The Aespoe Hard Rock Laboratory (HRL) constitutes an important part of SKB's work to design and construct a geological repository for spent nuclear fuel and to develop and test methods for characterisation of a suitable site. The plans for SKB's research and development of technique during the period 2008-2013 are presented in SKB's RDandD-Programme 2007 /SKB 2007/. The information given in the RDandD-Programme related to Aespoe HRL is annually detailed in the Aespoe HRL Planning Report /SKB 2008/. This Aespoe HRL Status Report is a collection of the main achievements obtained during the fourth quarter of 2008.

  4. Technical Reports - FY16 Q1 - October-December 2015

    Energy Technology Data Exchange (ETDEWEB)

    Lordi, Vincenzo [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Rubenstein, Brenda M. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Ray, Keith G. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-01-20

    Recent experiments have demonstrated that the frequency dependence of motional heating rates in ion traps can vary dramatically with temperature.1-6 More specifically, it has been shown that, at temperatures below roughly 70 K, heating rates are substantially lower than those observed at temperatures above 70 K.1,2 These observations, combined with experiments that show that ion bombardment may also reduce heating rates,4,5 suggest that one potential source of heating may be the presence of unwanted adatoms on trap surfaces. Based upon this evidence, this past quarter, we have used our previously detailed microscopic model of anomalous heating to study which adatoms may be responsible for the observed temperature-dependent scaling of motional heating rates with frequency. We have also examined the validity of one of the key assumptions in our model - that surface adatom dipoles can be accurately obtained from a variational ansatz - by using more direct DFT calculations of the dipole moments. Our current results suggest that the adatoms potentially responsible for the observed motional heating rates should bind weakly to the electrode surface and likely have a mass that exceeds that of Ne. Preliminary DFT calculations suggest that an analytical adatom dipole model,9 previously used in the ion trap noise literature7 to obtain the dipole as a function of adatom-surface distance, may be insufficiently accurate. Therefore, we are working toward obtaining a tabulation of the distance-dependent dipole for several adsorbates using first principles calculations for more accurate input to the heating model. The accurate calculation of the adatom dipole is important because its fluctuation is what couples to and heats the trapped ion qubit. Future work will focus on calculating the frequency spectra of a variety of hydrocarbons, which should have the binding characteristics identified below as necessary for reproducing experimental results. Upcoming efforts will moreover be directed toward deriving an improved microscopic model of heating which will enable direct comparisons of heating rates with measured ion-surface distances and will more accurately account for experimental parameters such as the trapping frequency, ion-electrode distance, and RF power applied to the electrodes.

  5. Defense Standardization Program Journal. October/December 2012

    Science.gov (United States)

    2012-10-01

    portcullis to keep the enemy out. Then gun- powder was invented , and soon holes blasted in castle walls made the moat moot. Me- diev.il strategists had to...went to my first baseball game. I also got a "Speeding Ticket" in Pennsylvania. dsp.dla.mil Program News DMSMS Working Group Recognizes DMSMS

  6. Nuclear waste management. Quarterly progress report, October-December 1979

    Energy Technology Data Exchange (ETDEWEB)

    Platt, A.M.; Powell, J.A. (comps.)

    1980-04-01

    Progress and activities are reported on the following: high-level waste immobilization, alternative waste forms, nuclear waste materials characterization, TRU waste immobilization programs, TRU waste decontamination, krypton solidification, thermal outgassing, iodine-129 fixation, monitoring of unsaturated zone transport, well-logging instrumentation development, mobile organic complexes of fission products, waste management system and safety studies, assessment of effectiveness of geologic isolation systems, waste/rock interactions technology, spent fuel and fuel pool integrity program, and engineered barriers. (DLC)

  7. Energy Information Administration quarterly coal report, October--December 1992

    International Nuclear Information System (INIS)

    1993-01-01

    The United States produced just over 1 billion short tons of coal in 1992, 0.4 percent more than in 1991. Most of the 4-million-short-ton increase in coal production occurred west of the Mississippi River, where a record level of 408 million short tons of coal was produced. The amount of coal received by domestic consumers in 1992 totaled 887 million short tons. This was 7 million short tons more than in 1991, primarily due to increased coal demand from electric utilities. The average price of delivered coal to each sector declined by about 2 percent. Coal consumption in 1992 was 893 million short tons, only 1 percent higher than in 1991, due primarily to a 1-percent increase in consumption at electric utility plants. Consumer coal stocks at the end of 1992 were 163 million short tons, a decrease of 3 percent from the level at the end of 1991, and the lowest year-end level since 1989. US coal exports fell 6 percent from the 1991 level to 103 million short tons in 1992. Less coal was exported to markets in Europe, Asia, and South America, but coal exports to Canada increased 4 million short tons

  8. Defense Standardization Program Journal. October/December 2009.

    Science.gov (United States)

    2009-12-01

    systems without damaging or permanently altering them. NDT can save both money and time in evaluation, troubleshooting, and research, and it is invaluable...data. Among those methods are digital radiography, phased-array ultrasound and phased-array eddy current, shearography, and thermography The data...Oakland, CA, "Bay Bridge East Span Project," http://www.dot.ca.gov/dist4/eastspans/ index.html, August 15, 2008. Military and commercial aircraft

  9. US Army Medical Department Journal, October-December 2008

    Science.gov (United States)

    2008-12-01

    those sources and the US Air Force and civilian air ambulances. •North Atlantic Treaty Organization fComputed tomography ^ Magnetic resonance imaging...full spectrum health services training to 824 students. The Medical Brigade held courses in dentistry , veterinarian services, medical logistics...among groups • Ideologies and narratives that resonate with groups • Values of groups (including tribes), interests, and motivations • Means by which

  10. Nuclear Waste Management quarterly progress report, October--December 1976

    Energy Technology Data Exchange (ETDEWEB)

    Platt, A.M. (comp.)

    1977-04-01

    Research topics on which progress is reported include decontamination and densification of chop-leach cladding residues, monitoring of effluents from waste solidification, TRU waste fixation, krypton solidification, /sup 14/C and /sup 129/I fixation, waste management system studies, organic complexes of fission products, characterization of 300 Area burial grounds, electropolishing as a decontamination technique, and decommissioning of Hanford facilities. 11 tables, 18 figures. (DLC)

  11. Waste Management Program. Technical progress report, October-December 1982

    Energy Technology Data Exchange (ETDEWEB)

    None

    1983-07-01

    This quarterly report provides current information on operations and development programs for the management of radioactive wastes from operation of the Savannah River Plant and offplant participants. The studies on environmental and safety assessments, in situ storage or disposal, waste from development and characterization, process and equipment development, and low-level waste management are a part of the Long-Term Waste Management Technology Program. The following studies are reported for the SR Interim Waste Operations Program: surveillance and maintenance, waste concentration, low-level effluent waste, tank replacement/waste transfer, and solid waste storage and related activities.

  12. Inertial confinement fusion quarterly report, October-December 1996

    Energy Technology Data Exchange (ETDEWEB)

    Hammer, J.

    1997-01-01

    The articles in this issue report progress on: Supernova Hydrodynamics Experiments on the Nova Laser; Characterization of Laser-Driven Shock Waves Using Interferometry; Absolute Equation of State Measurements of Compressed Liquid Deuterium Using Nova; Low-Density-Foam Shells; Tetrahedral Hohlraums; The Rosseland Mean Opacity of a Composite Material at High Temperatures.

  13. LLE Review, Volume 57. Quarterly report, October--December 1993

    Energy Technology Data Exchange (ETDEWEB)

    Simon, A. [ed.

    1993-12-31

    During this quarter, the visible fruits of long design labors on the OMEGA Upgrade began to appear. The target mirror structure was put in place, along with the target chamber itself. The laser bay structures were also installed, and the bay is now being prepared to receive optomechanical, control, and laser assemblies. Further details are in the OMEGA Upgrade Status Report in this issue. Theory and analysis of previous experiments continued during this reporting period. Articles contained herein describe an improved theory of the ablative Rayleigh-Taylor instability; a novel proposal for characterizing plasma-density profiles by using grid image refractometry; a much-improved treatment of the damping of ion sound waves in a mixture of light and heavy ions; and, finally, a new interpretation of measurements of 3/2-harmonic radiation emitted from the long-scale-length plasmas created in earlier OMEGA experiments.

  14. The United States Army Medical Department Journal. October - December 2010

    Science.gov (United States)

    2010-12-01

    childbirth trauma: validation of cues and related factors. J Midwifery Womens Health. 2009;54(1):65-72 e63. AUTHORS Dr Johnson is a Professor at...pencil and paper assessments to dioramas or portfolios have helped shift education into multidimensional, multitasking assessments that create

  15. Nulcear Safety: Technical progress review, October--December 1988

    Energy Technology Data Exchange (ETDEWEB)

    Silver, E G [ed.

    1988-01-01

    Nuclear Safety is a review journal that covers significant developments in the field of nuclear safety. Its scope includes the analysis and control of hazards associated with nuclear energy, operations involving fissionable materials, and the products of nuclear fission and their effects on the environment. Primary emphasis is on safety in reactor design, construction, and operation; however, the safety aspects of the entire fuel cycle, including fuel fabrication, spent-fuel processing, nuclear waste disposal, handling of radioisotopes, and environmental effects of these operations, are also treated.

  16. NRC Regulatory Agenda: Quarterly report, October--December 1988

    International Nuclear Information System (INIS)

    1989-01-01

    The NRC Regulatory Agenda is a compilation of all rules which the NRC has proposed or is considering action on, and all petitions for rulemaking which have been received by the Commission and are pending disposition by the Commission

  17. The United States Army Medical Department Journal. October - December 2012

    Science.gov (United States)

    2012-12-01

    readiness of healthcare providers to deliver palliative care in a combat environment Medium Closed Evaluating pain management by examining...promotes quality care outcomes. The CNL master’s level curriculum is offered in response to the profound changes in the increasingly complex healthcare...of Army Nurses’ Redeployment Experiences COL Denise L. Hopkins-Chadwick Combat Casualty Care Nursing Research and the Joint Combat Casualty Research

  18. Occurrence of Chronic Pelvic Pain, Abnormal Uterine Bleeding, and Hysterectomy Postprocedure among Women Who Have Undergone Female Sterilization Procedures: A Retrospective Claims Analysis of Commercially Insured Women in the US.

    Science.gov (United States)

    Carney, Patricia I; Yao, Jianying; Lin, Jay; Law, Amy

    2017-11-02

    To evaluate the frequency of chronic pelvic pain (CPP), abnormal uterine bleeding (AUB), and hysterectomy after hysteroscopic sterilization (HS) or laparoscopic sterilization (LS) in the United States. Retrospective cohort study (Canadian Task Force classification II-2). Commercially insured women. Women (aged 18-49 years) with claims for HS or LS from January 1, 2010 to December 31, 2012 were identified from the MarketScan Commercial database. Women were required to have 6 months of continuous coverage before (baseline) and 24 months after (follow-up) the procedure date. Women with ≥1 diagnosis for a pain condition (pain in pelvis/lower abdomen, low back pain, chronic headache, fibromyalgia) and/or AUB (excessive/frequent menstruation, irregular menstrual cycle, metorrhagia) during baseline were identified with International Classification of Diseases, Ninth Revision, Clinical Modification codes. HS/LS. Outcome measurements were proportions of women with CPP, AUB, and hysterectomy during follow-up. Among the study population 10 224 women underwent HS, whereas 8051 underwent LS. During baseline 23.3% and 26.9% of women with HS and LS, respectively, had a pre-existing pain diagnosis. Among both HS and LS study cohorts, greater proportions of women with a pre-existing pain condition versus those without had CPP in the 24 months afterward (HS cohort: 19.8% vs 9.3%, p women with HS and LS, respectively, had pre-existing AUB. Among cohorts, greater proportions of women with pre-existing AUB versus those without had AUB in the 24 months afterward (HS cohort: 21.2% vs 7.3%, p women who underwent HS and LS, pre-existing pain and AUB were associated with higher rates of hysterectomy postprocedure. Multivariable regression results showed similar direction of findings. Among women who underwent HS and LS, pre-existing pain conditions and AUB were associated with higher rates of CPP and AUB postprocedure, respectively, and both pre-existing conditions were associated

  19. Abnormal Head Position

    Science.gov (United States)

    ... Frequently Asked Questions Español Condiciones Chinese Conditions Abnormal Head Position En Español Read in Chinese What is an abnormal head posture? An abnormal or compensatory head posture occurs ...

  20. Procedures and practices for abnormal occurrences and emergencies

    International Nuclear Information System (INIS)

    Blaesig, H.

    1986-01-01

    This lecture contains the concept of the Emergency Operating Procedures (EOPs) of German power plants. As the procedures depend on the technique of the plant the level of automation and the types of information are described first. After this, the method to diagnose a transient or accident, following entry into an emergency procedure is explained. An overview about the design basis accidents and the aim of the actions in the procedures is given basing on the existing rules and regulations. Finally the theoretical principles are explained taking the corresponding procedures and examples of two German PWRs. (orig.)

  1. Tooth - abnormal colors

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003065.htm Tooth - abnormal colors To use the sharing features on this page, please enable JavaScript. Abnormal tooth color is any color other than white to yellowish- ...

  2. Urine - abnormal color

    Science.gov (United States)

    ... medlineplus.gov/ency/article/003139.htm Urine - abnormal color To use the sharing features on this page, please enable JavaScript. The usual color of urine is straw-yellow. Abnormally colored urine ...

  3. Abnormal uterine bleeding

    Science.gov (United States)

    Anovulatory bleeding; Abnormal uterine bleeding - hormonal; Polymenorrhea - dysfunctional uterine bleeding ... ACOG committee opinion no. 557: Management of acute abnormal uterine bleeding in nonpregnant reproductive-aged women. Reaffirmed 2015. ACOG. ...

  4. Pattern of haematologic abnormalities in incident dialysis patients ...

    African Journals Online (AJOL)

    Leukopenia, thrombocytosis and thrombocytopenia were less common (3.1%, 7.2% and 10.3% respectively). The use of locally derived reference ranges was associated with significantly higher frequencies of occurrence of majority of the haematologic abnormalities studied. Conclusion: Haematological abnormalities ...

  5. Defining Abnormally Low Tenders

    DEFF Research Database (Denmark)

    Ølykke, Grith Skovgaard; Nyström, Johan

    2017-01-01

    The concept of an abnormally low tender is not defined in EU public procurement law. This article takes an interdisciplinary law and economics approach to examine a dataset consisting of Swedish and Danish judgments and verdicts concerning the concept of an abnormally low tender. The purpose...

  6. Frequency of EEG abnormalities in age-matched siblings of autistic children with abnormal sleep EEG patterns.

    Science.gov (United States)

    Chez, Michael G; Buchanan, Thomas; Aimonovitch, Mary; Mrazek, Susan; Krasne, Valerie; Langburt, Wayne; Memon, Shoaib

    2004-04-01

    Epileptiform activity in sleep has been described even in the absence of clinical seizures in 43-68% of patients with autistic spectrum disorders (ASDs). Genetic factors may play a significant role in the frequency of epilepsy, yet the frequency in normal age-matched controls is unknown. We studied overnight ambulatory electroencephalograms (EEGs) in 12 nonepileptic, nonautistic children with a sibling with both ASDs and an abnormal EEG. EEG studies were read and described independently by two pediatric epileptologists; 10 were normal studies and 2 were abnormal. The occurrence of abnormal EEGs in our sample (16.6%) was lower than the reported occurrence in children with ASDs. Further, the two abnormal EEGs were of types typically found in childhood and were different from those found in the ASD-affected siblings. The lack of similarity between sibling EEGs suggests that genetic factors alone do not explain the higher frequency of EEG abnormalities reported in ASDs.

  7. Plant abnormality diagnosis device

    International Nuclear Information System (INIS)

    Saeki, Akira.

    1992-01-01

    The device of the present invention diagnose an abnormal event occurred in a large-scaled plant, such as a nuclear power plant. The device comprises the following four functions. (1) Abnormality candidates are estimated based on an intelligence base storing characteristics established between the characteristics/functions and physical amounts of the plant components, and detected abnormality and measured values. Among the candidates, one which coincidents with the measured value such as an actual process amount is judged as a first cause. (2) In addition, a real time plant behavior is estimated based on parameters determining a plant operation mode. The candidate for the abnormality cause is estimated by the comparison between the result of the estimation and the measured value such as a process amount. (3) Characteristics established between the characteristics/functions and the physical amount of the plant components are structured stepwise thereby identifying the first abnormality cause. (4) Inactuated or failed portions of the components for restoring the abnormality to normal state are identified based on the intelligence base simultaneously with the estimation for the first abnormality cause. (I.S.)

  8. Chromosomal Abnormalities in ADHD

    Directory of Open Access Journals (Sweden)

    J Gordon Millichap

    2002-07-01

    Full Text Available The prevalence of fragile X syndrome, velocardiofacial syndrome (VCFS, and other cytogenetic abnormalities among 100 children (64 boys with combined type ADHD and normal intelligence was assessed at the NIMH and Georgetown University Medical Center.

  9. "Jeopardy" in Abnormal Psychology.

    Science.gov (United States)

    Keutzer, Carolin S.

    1993-01-01

    Describes the use of the board game, Jeopardy, in a college level abnormal psychology course. Finds increased student interaction and improved application of information. Reports generally favorable student evaluation of the technique. (CFR)

  10. Chromosomal abnormalities and autism

    Directory of Open Access Journals (Sweden)

    Farida El-Baz

    2016-01-01

    Conclusion: Chromosomal abnormalities were not detected in the studied autistic children, and so the relation between the genetics and autism still needs further work up with different study methods and techniques.

  11. Unusual occurrence report

    International Nuclear Information System (INIS)

    1981-01-01

    The final report provides information on an occurrence which took place in the HEDL Radioactive Liquid Waste System (RLWS), during which radioactive waste water entered the Retention Process Waste System. The RLWS has been cleared of the obstruction and is in full operation. Investigation of the occurrence and testing of the equipment involved is completed

  12. Nitrofurantoin and congenital abnormalities

    DEFF Research Database (Denmark)

    Czeizel, A.E.; Rockenbauer, M.; Sørensen, Henrik Toft

    2001-01-01

    Objective: To study human teratogenic potential of oral nitrofurantoin treatment during pregnancy. Materials and Methods: Pair analysis of cases with congenital abnormalities and matched population controls in the population-based dataset of the Hungarian Case-Control Surveillance of Congenital...

  13. CT of pleural abnormalities

    International Nuclear Information System (INIS)

    Webb, W.R.

    1995-01-01

    Briefly discussed were CT diagnosis of pleural thickening, CT technique for examining the pleura or pleuro-pulmonary disease, diagnosis of pleural collections, diagnosis of pleural fluid abnormalities in patients with pneumonia, pleural neoplasms, malignant (diffuse) mesothelioma, metastases, local fibrous tumor of the pleura (benign mesothelioma) (21 refs.)

  14. Chromosomal abnormalities and autism

    African Journals Online (AJOL)

    Farida El-Baz

    2015-06-19

    Jun 19, 2015 ... ORIGINAL ARTICLE. Chromosomal abnormalities and autism. Farida El-Baz a. , Mohamed Saad Zaghloul a. , Ezzat El Sobky a. ,. Reham M Elhossiny a,. *, Heba Salah a. , Neveen Ezy Abdelaziz b a Pediatric Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt b Children with Special ...

  15. Intelligent Process Abnormal Patterns Recognition and Diagnosis Based on Fuzzy Logic

    Directory of Open Access Journals (Sweden)

    Shi-wang Hou

    2016-01-01

    Full Text Available Locating the assignable causes by use of the abnormal patterns of control chart is a widely used technology for manufacturing quality control. If there are uncertainties about the occurrence degree of abnormal patterns, the diagnosis process is impossible to be carried out. Considering four common abnormal control chart patterns, this paper proposed a characteristic numbers based recognition method point by point to quantify the occurrence degree of abnormal patterns under uncertain conditions and a fuzzy inference system based on fuzzy logic to calculate the contribution degree of assignable causes with fuzzy abnormal patterns. Application case results show that the proposed approach can give a ranked causes list under fuzzy control chart abnormal patterns and support the abnormity eliminating.

  16. Intelligent Process Abnormal Patterns Recognition and Diagnosis Based on Fuzzy Logic.

    Science.gov (United States)

    Hou, Shi-Wang; Feng, Shunxiao; Wang, Hui

    2016-01-01

    Locating the assignable causes by use of the abnormal patterns of control chart is a widely used technology for manufacturing quality control. If there are uncertainties about the occurrence degree of abnormal patterns, the diagnosis process is impossible to be carried out. Considering four common abnormal control chart patterns, this paper proposed a characteristic numbers based recognition method point by point to quantify the occurrence degree of abnormal patterns under uncertain conditions and a fuzzy inference system based on fuzzy logic to calculate the contribution degree of assignable causes with fuzzy abnormal patterns. Application case results show that the proposed approach can give a ranked causes list under fuzzy control chart abnormal patterns and support the abnormity eliminating.

  17. Neurological abnormalities predict disability

    DEFF Research Database (Denmark)

    Poggesi, Anna; Gouw, Alida; van der Flier, Wiesje

    2014-01-01

    To investigate the role of neurological abnormalities and magnetic resonance imaging (MRI) lesions in predicting global functional decline in a cohort of initially independent-living elderly subjects. The Leukoaraiosis And DISability (LADIS) Study, involving 11 European centres, was primarily aimed...... at evaluating age-related white matter changes (ARWMC) as an independent predictor of the transition to disability (according to Instrumental Activities of Daily Living scale) or death in independent elderly subjects that were followed up for 3 years. At baseline, a standardized neurological examination.......0 years, 45 % males), 327 (51.7 %) presented at the initial visit with ≥1 neurological abnormality and 242 (38 %) reached the main study outcome. Cox regression analyses, adjusting for MRI features and other determinants of functional decline, showed that the baseline presence of any neurological...

  18. Equipment abnormality monitoring device

    International Nuclear Information System (INIS)

    Ando, Yasumasa

    1991-01-01

    When an operator hears sounds in a plantsite, the operator compares normal sounds of equipment which he previously heard and remembered with sounds he actually hears, to judge if they are normal or abnormal. According to the method, there is a worry that abnormal conditions can not be appropriately judged in a case where the number of objective equipments is increased and in a case that the sounds are changed gradually slightly. Then, the device of the present invention comprises a plurality of monitors for monitoring the operation sound of equipments, a recording/reproducing device for recording and reproducing the signals, a selection device for selecting the reproducing signals among the recorded signals, an acoustic device for converting the signals to sounds, a switching device for switching the signals to be transmitted to the acoustic device between to signals of the monitor and the recording/reproducing signals. The abnormality of the equipments can be determined easily by comparing the sounds representing the operation conditions of equipments for controlling the plant operation and the sounds recorded in their normal conditions. (N.H.)

  19. Congenital and Neurological Abnormalities in Infants with Phenylketonuria

    Science.gov (United States)

    Johnson, Charles F.; And Others

    1978-01-01

    Examined was the occurrence of congenital and neurological abnormalities in 150 children with phenylketonuria (PKU--a metabolic disorder which may result in mental retardation) age 1 year or older, who have been treated with a restricted phenylalanine diet, according to the protocol used in a nation-wide longitudinal collaborative study.…

  20. Feeling Abnormal: Simulation of Deviancy in Abnormal and Exceptionality Courses.

    Science.gov (United States)

    Fernald, Charles D.

    1980-01-01

    Describes activity in which student in abnormal psychology and psychology of exceptional children classes personally experience being judged abnormal. The experience allows the students to remember relevant research, become sensitized to the feelings of individuals classified as deviant, and use caution in classifying individuals as abnormal.…

  1. Abnormal glucose tolerance and lipid abnormalities in Indian ...

    African Journals Online (AJOL)

    Discussion. Regardless of varying diagnostic classification, abnormal glucose tolerance is a well-documented risk factor. 16 Abnormalities in. Because ofthe small number offemale MI survivors, the effect of obesity and abnormal glucose tolerance on lipid levels was studied in the male patients only. There was no significant.

  2. Exercises to Improve Gait Abnormalities

    Science.gov (United States)

    ... Articles Directories Videos Resources Contact Exercises to Improve Gait Abnormalities Home » Article Categories » Exercise and Fitness Font Size: A A A A Exercises to Improve Gait Abnormalities Next Page The manner of how a ...

  3. [Penile congenital abnormalities].

    Science.gov (United States)

    Boillot, B; Teklali, Y; Moog, R; Droupy, S

    2013-07-01

    Congenital abnormalities of the penis are usually diagnosed at birth and pose aesthetic and functional problems sometimes requiring surgical management. A literature review was conducted on Medline considering the articles listed until January 2012. Hypospadias is the most common malformation (1 in 250 boys. Familial forms: 7%). The causes remain hypothetical but the doubling of the incidence in 30 years could be linked to fetal exposure to endocrine disruptors "estrogen-like" used in the food industry in particular. Surgical treatment is usually intended to improve the aesthetic appearance but sometimes, in case of significant curvature or posterior meatus, necessary for normal sexual life and fertility. Other malformations (epispades, buried penis, transpositions, twists and preputial abnormalities) as well as management for functional or aesthetic consequences of these malformations in adulthood require complex surgical care in a specialized environment. The improvement of surgical techniques and pediatric anesthesia allows an early and effective specialized surgical approach of penile malformations. Management of sequelae in adulthood must be discussed and requires experience of surgical techniques on pediatric and adult penis. Copyright © 2013 Elsevier Masson SAS. All rights reserved.

  4. Chemical Engineering Division Fuel Cycle Programs. Quarterly progress report, October--December 1977

    Energy Technology Data Exchange (ETDEWEB)

    Steindler, M. J.; Ader, M.; Barletta, R. E.

    1978-01-01

    Fuel cycle studies reported for this period include studies of advanced solvent extraction techniques focussed on the development of centrifugal contactors for use in Purex processes. Miniature single-stage and eight-stage centrifugal contactors are being employed in performance studies applicable to larger units. In other work, literature on the dispersion of reagents as a result of explosions is being reviewed to develop systematic data applicable to fuel reprocessing and useful in identifying source terms. In yet other work, scouting studies were performed to obtain criteria for identifying organic solutions suitable for the separation of actinides from fission products. A program has been initiated on pyrochemical and dry processing of nuclear fuel. Literature reviews have been initiated on material development, carbide fuel reprocessing, and thorium-uranium reprocessing in fused salts. A review and evaluation of the encapsulation of high-level waste in a metal matrix is under way. Corrosion and leach rates of simulated waste forms are being measured and a model has been proposed to describe the reaction between solidified high-level waste and metals. In other work, criteria for the handling of fuel assembly hulls are being developed on the basis of past work on the pyrophoricity of zirconium alloys and related criteria from several sources. Experimental work is underway to determine whether nuclear wastes can be safely confined in geologic formations. Information is being obtained on the migration of radionuclides in aqueous solution-rock systems. 17 figures, 27 tables.

  5. Instrumentation and process control for fossil demonstration plants. Quarterly technical progress report, October--December 1976

    Energy Technology Data Exchange (ETDEWEB)

    LeSage, L. G.; O' Fallon, N. M; Bump, T. R.; Cohn, C. E.; Doering, R. W.; Duffey, D.; Kirsch,; Lipinski, W. C.; Managan, W. W.; Porges, K. G.; Raptis, A. C.

    1977-01-01

    The final report of the state-of-the-art study of instrumentation for process control and safety in large-scale coal conversion and fluidized-bed combustion systems was distributed in November. A conceptual design for the Solids/Gas Flow Test Facility has been initiated, the major components identified, and vendors located. Work on acoustic flow measurement has included theoretical feasibility studies of acoustic/ultrasonic techniques for mass-flow measurements of slurries and solid/gas media. Initial planning was conducted to establish a laboratory facility necessary to verify theoretical findings. A survey of the literature relating to capacitive measurements was begun to provide a basis for conceptual designs and preliminary bench tests of the feasibility of these designs. Conceptual design of a capacitive on-line solids density measuring device and calculations to select the type of system for initial feasibility tests were carried out. Preliminary tests of neutron capture gamma analysis for on-line elemental composition of liquid and solid streams in coal plants indicate that most coal elements can be detected quantitatively through the pipe walls. A computer program for peak-fitting in the gamma spectrum was modified for requirements of this work. A literature search was started to determine the state-of-the-art in dynamic process modeling of fossil energy system components, physical property models, and process control models. A partial review of abstracts from a computerized literature search has identified over 50 references having possible application to process analysis activities in this program.

  6. ONRASIA Scientific Information Bulletin. Volume 17, Number 4, October-December 1992

    Science.gov (United States)

    1992-12-01

    Computation, by von plexity of the design (multiple func- Stalled operations are stored in Eicken, Culler , Goldstein, and tion units and multiple...Thomas F. 3-237 Donoghue, Michael 1-137 Lu, Stephen 4-063 Flynn, Anita 2-099 Meyer, Robert A. 3-173 Fujii, Kozo 4-099 Moffett, Jonathan D. 1-061 Gibor

  7. ONR Far East Scientific Bulletin, Volume 7, Number 4, October-December 1982,

    Science.gov (United States)

    1982-12-01

    as the Very Large Scale Integration (VLSI) Technology Research Association ( Choo LSI Gijutsu Kenkyuu Kumiai). Money was provided to the Association in...030 Koczak, Michael 3. 4-030 Lessof f, Howard 1-017 Lindamood, George E. 4-055 Masubuchi, Koichi 1-007 McDonald, Jimmie R. 3-059 McHenry, Harry 1. 3

  8. Sandia Vertical-Axis Wind Turbine Program. Technical quarterly report, October--December 1975

    Energy Technology Data Exchange (ETDEWEB)

    Banas, J.F.; Sullivan, W.N. (eds.)

    1976-04-01

    Information is presented concerning: review of the status of general design efforts in the areas of aerodynamics, structures, systems analysis, and testing; summary of preliminary design details of the proposed 17-m turbine/60-kW generator system for power grid application; and structural analysis and operational test results for the existing 5-m turbine.

  9. Long-term high-level waste technology. Composite quarterly technical report, October-December 1979

    International Nuclear Information System (INIS)

    Cornman, W.R.

    1980-06-01

    This document summarizes work for the immobilization of high-level radioactive wastes from the chemical reprocessing of nuclear reactor fuels. The progress is reported in two main areas: site technology, and alternative waste form development

  10. United States Army Medical Department Journal. Leadership in the Army Medical Department, October - December 2009

    Science.gov (United States)

    2009-12-01

    family members walk in and out of our hospitals and "Joint Commission on Accreditation of Healthcare Organizations, One Renaissance Blvd, Oakbrook...such as surgeries , procedures, appointments, etc. When a major problem or crisis arises, you should go directly to the scene, determine first-hand...randomized trial of ultrasound-guided brachial plexus anaesthesia in upper limb surgery . Anaesth Intensive Care. 2005;33:719-725. 12. Sites BD, Beach

  11. ONRASIA Scientific Information Bulletin. Volume 16, Number 4, October - December 1991

    Science.gov (United States)

    1991-12-01

    Esprit, Institute for New Generation 0 Electronic Materials Engineering Computer Technology (ICOT), and Prof. Robin B. Stanton others. The Fujitsu...minimize this kind Email: robertson@csis.dit.csiro.au P.O. Box 93 of noise, while another modelled flow Northe Ryde , New South Wales 2113, of granular...61-3-282-2630 Macquarie Center, North Ryde 2113, and have been looking at the Schedule Fax: +61-3-282-2600 Australia package (Dongarra, Sorenson

  12. Environmental Radiation Data: Report 56, October-December 1988. Quarterly report

    International Nuclear Information System (INIS)

    1989-06-01

    Environmental Radiation Data (ERD) contains data from the Environmental Radiation Ambients Monitoring System (ERAMS). Data from similar networks operated by contributing States, Canada, Mexico, and the Pan American Health Organization are reported in the ERD when available. The ERAMS is comprised of nationwide sampling stations that provide air, surface and drinking water and milk samples from which environmental radiation levels are derived. Sampling locations are selected to provide optimal population coverage while functioning to monitor fallout from nuclear devices and other forms of radioactive contamination of the environment. The radiation analyses performed on these samples include gross alpha and gross beta levels, gamma analyses for fission products, and specific analyses for uranium, plutonium, stronium, iodine, radium, krypton, and tritium

  13. Composite quarterly technical report: long-term high-level waste technology, October-December 1980

    International Nuclear Information System (INIS)

    Cornman, W.R.

    1981-04-01

    The technical information in this report summarizes work performed at participating sites to immobilize high-level radioactive wastes. The areas reported are in: program management and support; waste preparation; waste fixation; and final handling. Majority of the studies were in the area of waste fixation, some of which are: leaching tests of ceramic forms, high silica glass, graphite powder and other carbon preparations; viscosity measurements for a range of waste-glass compositions from references borosilicate glass to high-alumina glasses; neutron activation analysis for measuring leach rates; preparation of SYNROC D spheres; formulations for preparing ceramics from defense waste composition; development of a pilot-scale glass melter, and kinetic studies of slag formation in glass melters

  14. CERN Technical Training 2006: Software and System Technologies Curriculum - Scheduled Course Sessions (October-December 2006)

    CERN Multimedia

    2006-01-01

    he Software and System Technologies Curriculum of the CERN Technical Training Programme offers comprehensive training in C++, Java, Perl, Python, XML, OO programming, JCOP/PVSS, database design and Oracle. In the PERL, C++, OO and Java course series there are some places available on the following course sessions, scheduled until the end of this year: Object-Oriented Analysis and Design using UML: 17-19 October 2006 (3 days) JAVA 2 Enterprise Edition - Part 1: Web Applications: 19-20 October 2006 (2 days) JAVA - Level 1: 30 Oct. -1 Nov. 2006 (3 days) PERL 5 - Advanced Aspects: 2 November 2006 (1 day) C++ Programming Part 1 - Introduction to Object-Oriented Design and Programming: 14-16 November 2006 (3 days) JAVA - Level 2: 4-7 December 2006 (4 days) C++ Programming Part 2 - Advanced C++ and its Traps and Pitfalls: 12-15 December 2006 (4 days) JAVA 2 Enterprise Edition - Part 2: Enterprise JavaBeans : 18.20 December 2006 (3 days) All the above sessions will be given in English, at the CERN Training Centre....

  15. Chemical Engineering Division Fuel Cycle Programs. Quarterly progress report, October-December 1981

    International Nuclear Information System (INIS)

    Steindler, M.J.; Bates, J.K.; Cannon, T.F.

    1982-05-01

    Methods of measuring rates of leaching from simulated waste glasses using neutron activation analysis and radiotracers have been developed. Laboratory-scale impact tests of solid alternative waste forms are being performed to obtain a size analysis of the fragments. Logging techniques are being developed to measure the relative amount of residual oil in a depleted oil reservoir by injecting gamma-active solution into it. Work to test the behavior of radionuclides leached from proposed nuclear-waste repositories using laboratory-analog experiments is in progress. High potassium levels in crushed granite from a Northern Illinois drill hole are probably derived by the leaching of potassium feldspar. Testing and development of equipment for the destructive analysis of full-length irradiated fuel rods from the LWBR are in progress. 19 figures, 13 tables

  16. Nuclear Safety. Technical Progress Journal, October--December 1991: Volume 32, No. 4

    Energy Technology Data Exchange (ETDEWEB)

    1991-01-01

    This document is a review journal that covers significant developments in the field of nuclear safety. Its scope includes the analysis and control of hazards associated with nuclear energy, operations involving fissionable materials, and the products of nuclear fission and their effects on the environment. Primary emphasis is on safety in reactor design, construction, and operation; however, the safety aspects of the entire fuel cycle, including fuel fabrication, spent-fuel processing, nuclear waste disposal, handling of radioisotopes, and environmental effects of these operations, are also treated.

  17. Nevada nuclear waste storage investigations. Quarterly report, October-December 1981

    Energy Technology Data Exchange (ETDEWEB)

    None

    1982-03-01

    The Nevada Nuclear Waste Storage Investigations (NNWSI) are investigating and determining whether specific underground rock masses are suitable for permanently disposing of highly radioactive wastes, studying and determining whether the Nevada Test Site (NTS) would qualify as a suitable repository site, and developing and demonstrating the capability to safely handle and store commercial spent reactor fuel and high-level waste. This document is a compilation of the technical progress of the principal project participants of the NNWSI in meeting the objectives described in the draft FY 1982 NNWSI Project Plan and revised planning documentation during the first quarter of FY 1982. The NNWSI Project Work Breakdown Structure (WBS) for FY 1982 is comprised of eight tasks which form the main sections of this document. They are: systems; waste package; site; repository; regulatory and institutional; test facilities; land acquisition; and program management. Scenarios for the release of radionuclide from a repository in alternate rock types occuring in the southwest NTS area were ranked by probabilities. Analysis of data from 60 wells in and around NTS are nearing completion. A computerized data recording and earthquake detection system that is more efficient was made operational. A series of 55 evaluations of repository locations in the screening area was performed. A review has been completed covering the likelihood of creep failure in a tuff repository. (DMC)

  18. NRC TLD Direct Radiation Monitoring Network. Progress report, October--December 1996

    International Nuclear Information System (INIS)

    Struckmeyer, R.

    1997-03-01

    This report presents the results of the NRC Direct Radiation Monitoring Network for the fourth quarter of 1996. It provides the ambient radiation levels measured in the vicinity of 74 sites throughout the United States. In addition, it describes the equipment used, monitoring station selection criteria, characterization of the dosimeter response, calibration procedures, statistical methods, intercomparison, and quality assurance program. 3 figs., 4 tabs

  19. U.S. Army Medical Department Journal (October-December 2006)

    Science.gov (United States)

    2006-12-01

    trial by fire. Comput Environ Urban. 2003;27;No. 6:571- 583. 11. Lockey DJ, MacKenzie R, Redhead J, Wise D, Harris T, Weaver A, Hines K, Davies GE...have basic functions, such as demographics , check-in, test display, and encounter documentation, as well as numerous overlapping specialty functions. All...own data. Consider a system that does not use a common demographic identifier for patients, allowing overlapping and/or redundant records on the same

  20. ONRASIA Scientific Information Bulletin, Volume 15, Number 4, October-December 1990

    Science.gov (United States)

    1990-12-01

    flounder larvae caused a characteristics of cultured fish. Marked surge of thyroxine in the tissues and accel- improvements in growth rate and viability ...with with the included magnetoparticles retained permission, from Ref 5) their viability and could be made to migrate Amount of Ein a magnetic field. It...31 (2) Food industry- yogurt fermentation, flesh Biotechnology Master Plan comprising some (particularly fish) freshness estimation, food $60 million

  1. Nuclear Safety. Technical Progress Journal, October--December 1992: Volume 33, No. 4

    Energy Technology Data Exchange (ETDEWEB)

    None

    1992-01-01

    This review journal covers significant developments in the field of nuclear safety. Its scope includes the analysis and control of hazards associated with nuclear energy, operations involving fissionable materials, and the products of nuclear fission and their effects on the environment. Primary emphasis is on safety in reactor design, construction, and operation; however, the safety aspects of the entire fuel cycle, including fuel fabrication, spent-fuel processing, nuclear waste disposal, handling of radioisotopes, and environmental effects of these operations, are also treated.

  2. Bench scale testing of micronized magnetite beneficiation. Quarterly technical progress report 4, October--December, 1993

    Energy Technology Data Exchange (ETDEWEB)

    Anast, K.

    1994-01-25

    This project is aimed at development of a process that, by using ultra fine magnetite suspension, would expand the application of heavy media separation technology to processing fine, {minus}28 mesh coals. These coal fines, produced during coal mining and crushing, are separated in the conventional coal preparation plant and generally impounded in a tailings pond. Development of an economic process for processing these fines into marketable product will expand the utilization of coal for power production in an environmentally acceptable and economically viable way. This process has been successfully researched at PETC but has not been studied on a continuous bench-scale unit, which is a necessary step towards commercial development of this promising technology. The goal of the program is to investigate the technology in a continuous circuit at a reasonable scale to provide a design basis for larger plants and a commercial feasibility data.

  3. Licensee contractor and vendor inspection status report. Quarterly report, October--December 1995

    International Nuclear Information System (INIS)

    1996-02-01

    This periodical covers the results of inspections performed by the NRC's Special Inspection Branch, Vendor Inspection Section, that have been distributed to the inspected organizations during the period from October 1995 through December 1995

  4. A report on the levels of radiocaesium activity in mountain sheep October - December 1987

    International Nuclear Information System (INIS)

    Colgan, P.A.

    1988-02-01

    This report details the in vivo monitoring of mountain sheep undertaken by the Nuclear Energy Board during the period 5th October to 18th December 1987. A total of 636 farms in upland areas in eight counties were visited and 7,429 sheep were monitored. In addition, monitoring of sheep for the home and export market was undertaken at five slaughterhouses where a further 779 animals were examined. The farm monitoring identified 989 sheep with radiocaesium activities above 600 Bq/kg, of which 162 were above 1000 Bq/kg. Statistical testing was used to identify areas deemed to be 'reserved' and 'cleared' in each of the counties visited. It is concluded that the imposition of restrictions on the movement and slaughter of sheep may not be the most effective means of preventing animals with unacceptably high radiocaesium concentrations reaching the market. A programme of farmer education in stock management, allied to in vivo monitoring at slaughterhouses serving both the domestic and export markets, is put forward as the most effective method of ensuring the protection of the public

  5. The United States Army Medical Department Journal. October-December 2007

    Science.gov (United States)

    2007-12-01

    authentic. Your deeds should match your words or “your walk should match your talk.” If you are an introvert by nature, trying to come across as an...difficult terrain he must dismount and walk . Only after the army’s well is finished does he drink. Only after the army’s food is cooked does he eat...December 2007 67 Bing S. SunTzu Was a Sissy : How to Conquer Your Enemies, Promote Your Friends, and Wage the Real Art of War. New York, NY

  6. Update: nuclear power program information and data, October-December 1981

    International Nuclear Information System (INIS)

    1981-01-01

    UPDATE is published by the Office of Coordination and Special Projects, Office of Nuclear Reactor Programs, to provide a quick reference source on the current status of nuclear powerplant construction and operation in the United States and for information on the fuel cycle, economics, and performance of nuclear generating units. Similar information on other means of electric generation as related to nuclear power is included when appropriate. The subject matter of the reports and analyses presented in UPDATE will vary from issue to issue, reflecting changes in foci of interest and new developments in the field of commercial nuclear power generation. UPDATE is intended to provide a timely source of current statistics, results of analyses, and programmatic information proceeding from the activities of the Office of Nuclear Reactor Programs and other components of the Department of Energy, as well as condensations of topical articles from other sources of interest to the nuclear community. It also facilitates quick responses to requests for data and information of the type often solicited from this office

  7. Reactor-safety research programs. Quarterly report, October-December 1982. Volume 4

    Energy Technology Data Exchange (ETDEWEB)

    Edler, S.K. (ed.)

    1983-04-01

    Evaluations of nondestructive examination (NDE) techniques and instrumentation are reported; areas of investigation include demonstrating the feasibility of determining the strength of structural graphite, evaluating the feasibility of detecting and analyzing flaw growth in reactor pressure boundary systems, examining NDE reliability and probabilistic fracture mechanics, and assessing the integrity of pressurized-water-reactor steam-generator tubes where service-induced degradation has been indicated. Experimental data and analytical models are being provided to aid in decision making regarding pipe-to-pipe impacts following postulated breaks in high-energy fluid system piping. Core thermal models being developed to provide better digital codes to compute the bahavior of full-scale reactor systems under postulated accident conditions. Fuel assemblies and analytical support are being provided for experimental programs at other facilities.

  8. Progress report on the Pegasus plow, October--December 1996 and January--March 1997

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-04-01

    This is a progress report on a contract related to the invention of a plow which will bury organic waste from farm fields, either in the form of shredded stubble or as whole stalks. The report addresses completion of various tasks in the contract, primarily related to field testing and trying to move the product into the market place.

  9. U.S. Army Medical Department Journal, October-December 2007

    Science.gov (United States)

    2007-12-01

    even with a rare day off, adds up to 14,800 hours a year. Thus, today residency training time is 20% shorter. The current situation violates the “ Bermuda ... Triangle ” of business that states you can only get two of the following three in any given product: good, fast, or cheap. If we want good residency

  10. H-division quarterly report, October--December 1977. [Lawrence Livermore Laboratory

    Energy Technology Data Exchange (ETDEWEB)

    1978-02-10

    The Theoretical EOS Group develops theoretical techniques for describing material properties under extreme conditions and constructs equation-of-state (EOS) tables for specific applications. Work this quarter concentrated on a Li equation of state, equation of state for equilibrium plasma, improved ion corrections to the Thomas--Fermi--Kirzhnitz theory, and theoretical estimates of high-pressure melting in metals. The Experimental Physics Group investigates properties of materials at extreme conditions of pressure and temperature, and develops new experimental techniques. Effort this quarter concerned the following: parabolic projectile distortion in the two-state light-gas gun, construction of a ballistic range for long-rod penetrators, thermodynamics and sound velocities in liquid metals, isobaric expansion measurements in Pt, and calculation of the velocity--mass profile of a jet produced by a shaped charge. Code development was concentrated on the PELE code, a multimaterial, multiphase, explicit finite-difference Eulerian code for pool suppression dynamics of a hypothetical loss-of-coolant accident in a nuclear reactor. Activities of the Fluid Dynamics Group were directed toward development of a code to compute the equations of state and transport properties of liquid metals (e.g. Li) and partially ionized dense plasmas, jet stability in the Li reactor system, and the study and problem application of fluid dynamic turbulence theory. 19 figures, 5 tables. (RWR)

  11. MHD Coal-Fired Flow Facility. Quarterly/annual technical progress report, October-December 1979

    Energy Technology Data Exchange (ETDEWEB)

    Dicks, J. B.; Chapman, J. N.; Crawford, L. W.

    1980-02-01

    In this Fourth Quarterly/Annual Report submitted under DOE contracts EX-76-C-01-1760 and DE-AC02-79ET10815, the University of Tennessee Space Institute (UTSI) reports on significant activity, task status, planned research, testing, and development, and conclusions for the Magnetohydrodynamics (MHD) Coal-Fired Flow Facility (CFFF) and the Research and Development Laboratory. Work on the CFFF progressed with only minor problems. Total construction activity for all site work presently awarded is nearly 98% complete. Water analysis shows that Woods Reservoir baseline conditions are within EPA or Tennessee drinking water standards. For the primary combustor, the vitiation heater and primary combustor fabrication drawings were completed and the nozzle design was completed. The drum module for the radiant slagging furnace was awarded. On the MHD Power Generator, development continued in several areas of advanced analysis including development of time-dependent models for use with the one-dimensional code. For seed regeneration, the tentative determination is that the Tomlinson Tampella is the most economically viable method. With regard to capped electrode erosion, investigations have shown that the major degradation of the cladding still present is at the leading edge of the capped anode. To alleviate this, plans are to hot work the noble metal in the bending operation. In resolving another problem, a system employing the modified line-reversal method has been assembled and successfully tested to measure absolute plasma temperatures.

  12. The United States Army Medical Department Journal. October-December 2011

    Science.gov (United States)

    2011-12-01

    endures but change. When the Greek philosopher Heraclitus penned that contemplation some 2,500 years ago, he undoubtedly had no concept of its...power. Initial assessment of the en route care program in Operation Iraqi Freedom (OIF) showed fragmented care delivery and the lack of standards

  13. ONR Far East Scientific Bulletin, Volume 12, Number 4, October-December 1987,

    Science.gov (United States)

    1987-12-01

    colloidal suggested in concert with others in his consolidation methods. One such field that one should consider the development was reported by Kureha ...experimental data to be correct but Chemical Industry Company. Kureha "- that such data should be interpreted succeeded in producing uniform col- from...Pask also emphasized the need to coating. Using this procedure, Kureha ONRFE SCI BUL 12 (4) 87 48 ~~~ %5 55 %.,.:: %.J /r~~~- produced green mullite

  14. Nucla circulating atmospheric fluidized bed demonstration project. Quarterly technical progress report, October--December 1990

    Energy Technology Data Exchange (ETDEWEB)

    1991-01-31

    During the fourth quarter of 1990, steady-state performance testing at the Nucla Circulating Fluidized Bed (CFB) resumed under sponsorship of the US Department of Energy. Co-sponsorship of the Demonstration Test Program by the Electric Power Research Institute (EPRI) was completed on June 15, 1990. From October through December, 1990, Colorado-Ute Electric Association (CUEA) completed a total of 23 steady-state performance tests, 4 dynamic tests, and set operating records during November and December as the result of improved unit operating reliability. Highlight events and achievements during this period of operation are presented.

  15. AFOSR (Air Force Office of Scientific Research) Technical Report Summaries, October-December 1986

    Science.gov (United States)

    1986-12-01

    Li LC~~~ C’:i OLL-r C, t’---~~ 7L L >, C~’-C (A f6 -c a. - Lr z - j- > L < C.L C, --- -- Cil m- i Ci c C cc <~ C2- C: CfL’Clf S CLUL 0-’C L al~ C0...n 3C LC - - U -L Cl - rn. xLI -0 - i a CCU W > U .0 -Mu V) C~ c v.(D 0) L) U L m cl c c c > 0 m,) MC0) z JLN < 0 rn C) aCCa - zi C-- -( ECIC , :zz...8217)O Ln .1. tE C- L C, 0 - m m7 r, 7C D 01 n L )cC t- 62 0) L) L L it L)C L C L.-) a)mC - r e 7C -. f6 L- a, -2 Ci -CI D- > w Ul WU mit C > Cin - .~ 0

  16. Technical support for open-cycle MHD program. Progress report, October-December 1979

    Energy Technology Data Exchange (ETDEWEB)

    Doss, E. D. [ed.

    1980-12-01

    The support program for open-cycle MHD at Argonne National Laboratory is developing the analytical tools needed to investigate the performance of the major components in the combined cycle MHD/steam power system. The analytical effort is centered on the primary components of the system that are unique to MHD and also on the integration of these analytical representations into a model of the entire power producing system. The present project activities include modeling of the combustor, MHD channel and diffuser, slag separator, radiant boiler and high-temperature air heater. In addition, these models are combined into a complete system model, which is, at present, capable of carrying out optimizations of the entire system relative to either thermodynamic efficiency or cost of electrical power. Progress is reported in detail.

  17. Inertial Confinement Fusion quarterly report, October--December 1994. Volume 5, No. 1

    International Nuclear Information System (INIS)

    1995-01-01

    The ICF quarterly report is published by the Inertial Confinement Fusion Program at the Lawrence Livermore National Laboratory. Topics included in this issue include: system description and initial performance results for beamlet, design and performance of the beamlet amplifiers and optical switch, beamlet pulse-generation and wavefront-control system, large-aperture, high- damage-threshold optics for beamlet, beamlet pulsed power system, beamlet laser diagnostics, and beam propagation and frequency conversion modeling for the beamlet laser

  18. MHD power generation research, development and engineering. Quarterly progress report, October-December 1979

    Energy Technology Data Exchange (ETDEWEB)

    None

    1979-01-01

    Progress is reported on the following tasks: characterization of coal for open-cycle MHD power generation systems; compressive creep and strength studies of MHD preheater materials; preparation of coals for utilization in direct coal-fired MHD generation; characterization of volatile matter in coal; MHD materials evaluation; operability of the Moderate Temperature Slag Flow Facility; slag-seed equilibria and separations related to the MHD system; thermionic emission of coal and electrode materials; MHD instrumentation, consolidated inversion simulator, and data acquisition; combined MHD-steam plant cycle analysis and control; and slag physical properties - electrical and thermal conductivity. (WHK)

  19. AFRRI (Armed Forces Radiobiology Research Institute) Reports, October-December 1989

    Science.gov (United States)

    1989-02-01

    t treatmenicrt regimen int! alli-menic IF- ltirtiet cells F1ig 2’B). Thus. cells Irorn the resulted in var~ing degree,, if iied chim-erisi lie. host...cells. Proc Natil Acad Sci USA bone marrow. Blood 70:1696 84:4428 24. Nienhuis AW, Donahue RE. Karlsson S. Clark SC. Agricola B. 10. Metcalf D

  20. Licensee contractor and vendor inspection status report. Quarterly report, October--December 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-02-01

    This periodical covers the results of inspections performed by the NRC`s Special Inspection Branch, Vendor Inspection Section, that have been distributed to the inspected organizations during the period from October 1995 through December 1995.

  1. Regulation of coal polymer degradation by fungi, Second quarterly report, [October--December 1994

    Energy Technology Data Exchange (ETDEWEB)

    Bumpus, J.A. [University of Northern Iowa, Cedar Falls, IA (United States). Dept. of Chemistry

    1995-01-26

    Since our last quarterly report our research activities have focused on characterization of coal macromolecule by P. chrysosporium in vivo in ;two different culture media and by sodium oxalate in vitro. Wood rotting fungi mediate solubilization of low rank coal by secreting oxalic acid which chelates metal ions whose chelating metal ions oxalic acid breaks these ionic bridges rendering the coal macromolecules water soluble. Thus solubization by sodium oxalate in vitro represents a biomimetic process.

  2. Geothermal direct-heat utilization assistance. Quarterly report, October--December 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-12-31

    This report summarizes geothermal technical assistance, R&D and technology transfer activities of the Geo-Heat Center at Oregon Institute of Technology for the first quarter of FY-97. It describes 174 contracts with parties during this period related to technical assistance with geothermal direct heat projects. Areas dealt with include geothermal heat pumps, space heating, greenhouses, aquaculture, equipment, economics and resources. Research activities are summarized on greenhouse peaking. Outreach activities include the publication of a geothermal direct use Bulletin, dissemination of information, geothermal library, technical papers and seminars, and progress monitor reports on geothermal resources and utilization.

  3. Advancement of flash hydrogasification. Quarterly technical progress report, October-December 1984

    Energy Technology Data Exchange (ETDEWEB)

    Falk, A.Y.

    1985-09-01

    The design of test hardware and process development unit (PDU) modifications had been completed previously. Task VII involves the fabrication of test hardware and the modification of an existing 1-ton/h hydroliquefaction PDU at Rockwell's facilities for use as a hydrogasifier test facility. Test hardware fabrication has been completed. Modifications to the PDU were completed in July 1984. The modified facility can accommodate both 10- and 20-ft-long hydrogasifier reactors so that residence times will be in the range of 2 to 6 s when coal is fed at a nominal 1/2 ton/h into reactors at 1000 psia pressure. Provisions have been made for real-time analysis of the product gases using an on-line gas chromatograph system. Separate supplies of coal, hydrogen, oxygen, methane, and water (for steam generation) are provided so that short duration (1 to 2 h) hydrogasification tests along with preburner assembly performance evaluation tests can be conducted to meet the overall test program objectives. Performance characterization testing of the preburner assembly and two coal reactor tests to establish FHP reactor performance at baseline (low-steam concentration) hydrogasification conditions have been completed. Three reactor tests to investigate steam enhancement effects were conducted during this report period. An important program milestone was achieved when total carbon conversion to CO/sub x/ exceeded 18%, thereby confirming the Advanced Flash Hydropyrolysis (AFHP) chemistry predictions of significant heterogeneous/homogeneous CO production at high steam concentrations. Nominal reactor operating conditions for this test were 1950/sup 0/F, 1000 psig, 4.7-s residence time, and 45% inlet steam concentration. 6 refs., 13 figs., 10 tabs.

  4. Licensee contractor and vendor inspection status report. Quarterly report, October--December 1996

    International Nuclear Information System (INIS)

    1997-03-01

    This periodical covers the results of inspections performed by the NRC's Special Inspection Branch, Vendor Inspection Section, that have been distributed to the inspected organizations during the period from October 1996 through December 1996

  5. Damage analysis and fundamental studies. Quarterly progress report, October--December 1978

    Energy Technology Data Exchange (ETDEWEB)

    Zwilsky, Klaus M.

    1979-05-01

    This report is the fourth in a series of Quarterly Technical Progress Reports on Damage Analysis and Fundamental Studies (DAFS) which is one element of the Fusion Reactor Materials Program, conducted in support of the Magnetic Fusion Energy Program. This report is organized along topical lines in parallel to a Program Plan of the same title (to be published) so that activities and accomplishments may be followed readily relative to the Program Plan. Thus, the work of a given laboratory may appear throughout the report. Chapters 1 and 2 report topics which are generic to all of the DAFS Program: DAFS Task Group Activities and Irradiation Test Facilities, respectively. Chapters 3, 4, and 5 report the work that is specific to each of the subtasks around which the program is structured: A) Environmental Characterization, B) Damage Production, and C) Damage Microstructure Evolution and Mechanical Behavior.

  6. Can we predict the frequency of cyclones over Bay of Bengal during October-December?

    Digital Repository Service at National Institute of Oceanography (India)

    Sadhuram, Y.

    Forecasting cyclone activity in Australian (Nicholls, 1984; 1992) and southern Pacific (Revell and Goulter, 1986) regions with SO (Southern Oscillation) and the influence of El-Nino-Southern Oscillation (ENSO) on Bay of Bengal cyclones (Felton et al...

  7. NRC Regulatory Agenda. Quarterly report, October-December 1985. Volume 4, No. 4

    International Nuclear Information System (INIS)

    1986-03-01

    The Regulatory Agenda is a quarterly compilation of all rules on which the NRC has proposed, or is considering action as well as those on which it has recently completed action, and all petitions for rulemaking which have been received and are pending disposition by the Commission

  8. Helium generation in fusion-reactor materials. Progress report, October-December 1982

    International Nuclear Information System (INIS)

    Kneff, D.W.; Farrar, H. IV.

    1982-01-01

    The objectives of this work are to measure helium generation rates of materials for Magnetic Fusion Reactor applications in the Be(d,n) neutron environment, to characterize this neutron environment, and to develop helium accumulation neutron dosimeters for routine neutron fluence and energy spectrum measurements in Be(d,n) and Li(d,n) neutron fields

  9. Methyl chloride via oxyhydrochlorination of methane. Quarterly technical progress report No. 5, October--December 1992

    Energy Technology Data Exchange (ETDEWEB)

    1993-06-01

    Objective is to develop a process for converting light alkane gases to methyl chloride via oxyhydrochlorination using highly selective, stable catalysts (CuO based) in fixed-bed reactors designed to remove the large amount of heat generated, so as to control the reaction temperature. The proposed PFD for this unit was described to management, and the PDU PFD is currently being expanded into a P&ID with a subcontractor.

  10. Cure rate study of isothermally aged Sylgard 182, (an addendum). Progress report, October--December 1975

    Energy Technology Data Exchange (ETDEWEB)

    Clink, G.L.

    1975-01-01

    Isothermal aging of freshly prepared Sylgard 182 at 21/sup 0/C has been completed. Chemical analysis through NMR procedures, and hardness determinations through Shore durometer measurements are reported.

  11. ONR Tokyo Scientific Bulletin. Volume 5, Number 4, October-December 1980

    Science.gov (United States)

    1980-12-01

    ACCESSION NO. 3 RECIPIENT’S CATALOG NUMBER ONR/T VOL 5, NO 4 7M-I f 6 4 TITE (,S~SIII.I5 TYPE OF REPORT A PERIOD COVERED (4 NR TOKYO CIENTIFIC BULLETIN...cobalt above that obtainable even with SmCos. Recent Japanese and Swiss work has indi-ated that energy product, (BII)mu. in excess of 30 MGOe can be

  12. Hepatitis A outbreak in Ba subdivision, Fiji, October-December 2013.

    Science.gov (United States)

    Getahun, Aneley; Rafai, Eric; Tolosa, Maria Ximena; Dawainavesi, Akanisi; Tabua, Anaseini Maisema; Tabua, Josefa

    2015-01-01

    A cluster of suspected hepatitis A cases was notified to the Fiji Ministry of Health on 22 October 2013. An outbreak investigation team was mobilized to confirm the existence of an outbreak of hepatitis A and advise appropriate public health interventions. A case definition for the outbreak investigation was established, and standardized data collection tools were used to collect information on clinical presentation and risk factors. An environmental assessment was also conducted. There were 160 clinical cases of hepatitis A of which 15 were laboratory-confirmed. The attack rate was 349 per 10,000 population in the Nukuloa nursing zone; there were no reported deaths. Residents of the Nukuloa settlement were 6.6 times more likely to present with symptomatic hepatitis A infection (95% confidence interval: 3.8-12.6) compared with residents of another village with a different water supply. This is the first significant hepatitis A outbreak documented in Ba subdivision and possibly in Fiji. Enhanced surveillance of hepatitis A may reveal other clusters in the country. Improving the primary water source dramatically reduced the occurance of disease in the affected community and adjacent areas.

  13. ONR Far East Scientific Information Bulletin. Volume 14, Number 4, October-December 1989

    Science.gov (United States)

    1989-12-01

    laboratory is cur- Parthenon , allows the design of an LSI circuit rently involved in research in social impacts, to be expressed in a high-level...facilities and integrated-circuit design tool Parthenon , had a short discussion with a couple of developed by Mr. Yukihiro Nakamura and researchers working

  14. Chemical Engineering Division fuel cycle programs. Quarterly progress report, October-December 1978

    Energy Technology Data Exchange (ETDEWEB)

    Steindler, M J; Ader, M; Barletta, R E

    1980-01-01

    In the program on pyrochemical and dry processing methods (PDPM) for nuclear fuel, tungsten crucibles were successfully spun for use in laboratory-scale experiments. Corrosion testing of refractory metals and alloys in PDPM environments was done. Ceramic substrates were successfully coated with tungsten. Solubility measurements were made to determine Cd/Mg alloy composition and temperature at which dissolved Th will precipitate. Experiments were started to study the reduction of high-fired ThO/sub 2/ with Ca in a molten metal-molten salt system. Work on the fused salt electrolysis of CaO was started. Equipment for determining phase diagrams for U-Cu-Mg system was set up. The reaction of UO/sub 2/ with molten equimolar NaNO/sub 3/-KNO/sub 3/ was studied as part of a project to identify chemically feasible nonaqueous fuel reprocessing methods. Work was continued on development of a flowsheet for reprocessing actinide oxides by extracting actinides into ammonium chloro-aluminate (and alternative salts) from a bismuth solution. Preparation of Th, U, and Pu nitrides after dissolution of spent fuel elements in molten tin is being studied. Leach rates of glass beads, pulverized beads, and beads encapsulated in a lead matrix with no protective envelope were studied. A method (employing no pressure or vacuum systems) of encapsulating various solid wastes in a lead metal matrix was developed and tested. A preliminary integration was made of earlier data on effects of impacts on metal-matrix waste forms.Leach migration experiments were compared with conventional infiltration experiments as methods of evaluating geologic formations as barriers to nuclide migration. The effect of the streaming potential on the rates of transport of radioactive I/sup -/ and Na/sup +/ through kaolinite columns was measured, as well as adsorption of iodide and iodate by several compounds; implications of the results upon the disposal of radioactive iodine are discussed.

  15. High-energy gas-fracturing development. Quarterly report, October-December 1982

    Energy Technology Data Exchange (ETDEWEB)

    Cuderman, J.F.

    1983-02-01

    The purpose of this study is to develop and optimize the High Energy Gas Fracturing (HEGF) technique to produce multiple fractures around a wellbore in order to stimulate natural-gas production in Devonian shale. The HEGF technique uses a wellbore charge of a propellant tailored to produce pressure loading in the borehole that avoids crushing yet produces multiple fractures radiating from the wellbore. The multiple-fracture regime has been characterized and releated to parameters such as borehole size, pressure risetime, and surface-wave velocity. Pressure risetimes and peak pressures, measured for different propellants in boreholes to specify a propellant for a desired peak pressure and pressure risetime. Semiempirical models, using results from previous experiments, successfully relate stress, acceleration, and fracture radii in surrounding rock to peak pressure and pressure risetime. A finite-element model also has been developed which predicts fracture type and direction of fractures as a function of pressure loading, in situ stress, and material properties. A full-scale HEGF system has been developed for application in gas-well-stimulation experiments in Devonian shale. During this quarter, a proof test of the full-scale HEGF was conducted at the Nevada Test Site (NTS). The designed pressure pulse of 0.5 ms risetime was achieved, and the tamp remained in place during the test. The borehole was successfully cleared posttest. Multiple fracturing was verified with a downhole TV camera. The test of the full-scale hardware and its operational capability was successful. As a result, the HEGF system is ready for application in gas-well-stimulation experiments in Devonian shale. Tests were conducted to determine worst-case accident scenarios to establish sensitivity to shock and fire. There appears to be no risk of initiation resulting from shock or breakage of the propellant-canister segments.

  16. Licensee contractor and vendor inspection status report. Quarterly report, October--December 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    This periodical covers the results of inspections performed by the NRC`s Special Inspection Branch, Vendor Inspection Section, that have been distributed to the inspected organizations during the period from October 1996 through December 1996.

  17. NRC TLD Direct Radiation Monitoring Network. Progress report, October-December 1985. Volume 5, No. 4

    International Nuclear Information System (INIS)

    Jang, J.; Rabatin, K.; Cohen, L.

    1986-05-01

    This report presents the results of the NRC Direct Radiation Monitoring Network for the fourth quarter of 1985. It provides the ambient radiation levels measured in the vicinity of 74 sites throughout the United States. In addition, it describes the equipment used, monitoring station selection criteria, characterization of the dosimeter response, calibration procedures, statistical methods, intercomparison, and quality assurance program

  18. MHD heat and seed recovery technology project. Eighth quarterly report, October-December 1979

    Energy Technology Data Exchange (ETDEWEB)

    Petrick, M.; Johnson, T. R.

    1980-08-01

    The MHD Heat and Seed Recovery Technology Project at Argonne National Laboratory is obtaining information for the design and operation of the steam plant downstream of the MHD channel-diffuser, and of the seed regeneration process. The project goal is to supply the engineering data required in the design of components for prototype and demonstration MHD facilities. The work is being done in close cooperation with the Heat Recovery-Seed Recovery facilities, which will be 20-MW prototypes of the MHD steam bottoming system. The primary effort of the HSR Technology Project is directed toward experimental investigations of critical issues, such as (1) NO/sub x/ behavior in the radiant boiler and secondary combustor; (2) radiant boiler design to meet the multiple requirements of steam generation, NO/sub x/ decomposition, and seed-slag separation; (3) effects of solid or liquid seed deposits on heat transfer and gas flow in the steam and air heaters; (4) formation, growth, and deposition of the seed-slag particles; (5) character of the combustion gas effluents; and (6) the corrosion and erosion of ceramic and metallic materials of construction. These investigations are performed primarily in a 2-MW test facility, Argonne MHD Process Engineering Laboratory (AMPEL). Other project activities are related to studies of the thermochemistry of the seed-slag combustion gas system. Activities are reported.

  19. Materials technology for coal-conversion processes. Sixteenth quarterly report, October--December 1978

    Energy Technology Data Exchange (ETDEWEB)

    Ellingson, W A

    1978-01-01

    Refractories for slag containment, nondestructive evaluation methods, corrosion, erosion, and component failures were studied. Analysis of coal slags reveal ferritic contents of 18 to 61%, suggesting a partial pressure of 0/sub 2/ in the slagging zone of approx. 10/sup -2/ to 10/sup -4/ Pa. A second field test of the high-temperature ultrasonic erosion-monitoring system was completed. Ultrasonic inspecton of the HYGAS cyclone separator shows a reduced erosive-wear rate at 5000 h in the stellite region. The acoustic leak-detection system for valves was field tested using a 150-mm-dia. valve with a range of pressures from 0.34 to 4.05 MPa. Results suggest a linear relation between detected rms levels and leak rates. Studies on acoustic emissions from refractory concrete continued with further development of a real-time data acquisition system. Corrosion studies were conducted on Incoloy 800, Type 310 stainless steel, Inconel 671 and U.S. Steel Alloy 18-18-2 (as-received, thermally aged, and preexposed for 3.6 Ms to multicomponent gas mixtures). Results suggest a decrease in ultimate tensile strength and flow stress after preexposure. Examination of commercial iron- and nickel-base alloys after 100-h exposures in atmospheric-pressure fluidized-bed combustors suggests that the addition of 0.3 mole % CaCl/sub 2/ to the fluidized bed has no effect on the corrosion behavior of these materials; however, 0.5 mole % NaCl increased the corrosion rate of all materials. Failure-analysis activities included (1) the design and assembly of thermowells (Haynes Alloy 188 and slurry-coated Type 310 stainless steel) and (2) examination of components from the Synthane boiler explosion, the IGT Steam--Iron Pilot Plant, the HYGAS Ash Agglomerating Gasifier, and the Westinghouse Coal Gasification PDU.

  20. Hot Gas Cleanup Test Facility for gasification and pressurized combustion. Quarterly report, October--December 1994

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1995-02-01

    The objective of this project is to evaluate hot gas particle control technologies using coal-derived gas streams. This will entail the design, construction, installation, and use of a flexible test facility which can operate under realistic gasification and combustion conditions. The major particulate control device issues to be addressed include the integration of the particulate control devices into coal utilization systems, on-line cleaning techniques, chemical and thermal degradation of components, fatigue or structural failures, blinding, collection efficiency as a function of particle size, and scale-up of particulate control systems to commercial size. The conceptual design of the facility was extended to include a within scope, phased expansion of the existing Hot Gas Cleanup Test Facility Cooperative Agreement to also address systems integration issues of hot particulate removal in advanced coal-based power generation systems. This expansion included the consideration of the following modules at the test facility in addition to the original Transport Reactor gas source and Hot Gas Cleanup Units: carbonizer/pressurized circulating fluidized bed gas source; hot gas cleanup units to mate to all gas streams; combustion gas turbine; and fuel cell and associated gas treatment. The major emphasis during this reporting period was continuing the detailed design of the facility and integrating the particulate control devices (PCDs) into structural and process designs. Substantial progress in underground construction activities was achieved during the quarter. Delivery and construction of coal handling and process structural steel began during the quarter. Delivery and construction of coal handling and process structural steel began during the quarter. MWK equipment at the grade level and the first tier are being set in the structure.

  1. ONR Tokyo Scientific Bulletin. Volume 4, Number 4, October-December 1979,

    Science.gov (United States)

    1979-12-01

    large local gastropod . The nuclei have a smaller rejection rate than other materials (the Japanese cultured-pearl industry uses nuclei cut from a...Congress on Modem Pain Press Center 8F., 2-2-1, Uchisaiwai-cho Control Chiyoda-ku, Tokyo 100 undecided International Conference on Hawaii, USA. Prof. T

  2. ONR Far East Scientific Bulletin. Volume 6, Number 4, October - December 1981,

    Science.gov (United States)

    1981-12-01

    presynaptically in a gastropod nerve cell. Calcium ions are involved, but the mechanisms underlying the effect are still not clear. The effects of...Service, Congress on Modern Pain Inc. Control Nippon Press Center 8F 2-2-1, Uchisaiwai-cho Chiyoda-ku, Tokyo 100 October 24-29 Second International

  3. Chemical Engineering Division Fuel Cycle Programs. Quarterly progress report, October-December 1981

    Energy Technology Data Exchange (ETDEWEB)

    Steindler, M.J.; Bates, J.K.; Cannon, T.F.

    1982-05-01

    Methods of measuring rates of leaching from simulated waste glasses using neutron activation analysis and radiotracers have been developed. Laboratory-scale impact tests of solid alternative waste forms are being performed to obtain a size analysis of the fragments. Logging techniques are being developed to measure the relative amount of residual oil in a depleted oil reservoir by injecting gamma-active solution into it. Work to test the behavior of radionuclides leached from proposed nuclear-waste repositories using laboratory-analog experiments is in progress. High potassium levels in crushed granite from a Northern Illinois drill hole are probably derived by the leaching of potassium feldspar. Testing and development of equipment for the destructive analysis of full-length irradiated fuel rods from the LWBR are in progress. 19 figures, 13 tables.

  4. Black shale studies in Kentucky. Quarterly report, October--December 1977

    Energy Technology Data Exchange (ETDEWEB)

    1977-01-01

    During this quarter, most efforts were devoted to completing collection of field data from black-shale sections in order to meet a scheduled milestone at the end of December. Fourteen sections were described and measured, 12 from the outcrop belt on the eastern flank of the Cincinnati and two from the Pine Mountain outcrop belt. Five of Linda Provo's seven radioactive units were traced along the outcrop belts where possible. At the southern end of each outcrop belt, the units became increasingly difficult to differentiate, due to marked thinning on approaching the Cincinnati Arch. This thinning is evident from north to south in that successive basal units drop out southward. In northern parts of the outcrop belt, the basal unit in the black shale is unit 5, but in the southernmost section, unit 3 is the basal unit. Both units 5 and 4 have pinched out in the intervening distance. Work is also continuing on the petrographic study of core material and on the well-log inventory. Initial examination and point counting is nearly complete. Microfacies are being identified in the core, but all interpretations are preliminary. The well-log inventory for two more counties, Powell and Wolfe, were completed and the inventory for Magoffin has been started. An isopach map of unit 1 (Cleveland Shale Mbr.) from the northeastern part of the state, where the inventory is complete, has also been started. A study of the clay-mineral stratigraphy from selected cores and outcrops has also been started in conjunction with the geochemical group. Abstracts of reports containing project data and information on new techniques are included. (JRD)

  5. CERN Technical Training 2006: Office Software Curriculum Scheduled Course Sessions (October-December 2006)

    CERN Multimedia

    2006-01-01

    The Office Software Curriculum of the CERN Technical Training Programme currently offers comprehensive training in Microsoft Office (Word, Excel, Powerpoint, Access, Outlook), MS Project, Frontpage, Dreamweaver, Indesign, LaTeX, and CERN EDMS. There are some places available on the following Microsoft Office 2003 course sessions, currently scheduled until December 2007: EXCEL 2003 - niveau 2 : ECDL - 16-17 October (2 days, session in French) WORD 2003 (Short Course II) - HowTo... Mail merge - 2 November (morning, bilingual session) WORD 2003 (Short Course IV) - HowTo... Work with master document - 2 November (afternoon, bilingual session) OUTLOOK 2003 (Short Course III) - Meetings and Delegation - 3 November (morning, bilingual session) EXCEL 2003 (Short Course IV) - HowTo... Link cells, worksheets and workbooks - 3 November (afternoon, bilingual session) EXCEL 2003 - Level 1: ECDL - 13-14 November (2 days, session in English) ACCESS 2003 - Level 2: ECDL - 5-6 December (2 days, session in English) The abo...

  6. Energy Programs at the Johns Hopkins University Applied Physics Laboratory, Quarterly Report, October-December 1980

    Energy Technology Data Exchange (ETDEWEB)

    None

    1980-12-01

    The Johns Hopkins University Applied Physics Laboratory is engaged in developing energy resources, utilization concepts, and monitoring and storage methods. This Quarterly Report summarizes the work on the various tasks as of 31 December 1980. The Energy Quarterly Report is divided into five sections. The first, Geothermal Energy Development Planning and Technical Assistance, supported by the Department of Energy/Division of Geothermal Energy (DOE/DGE), contains reports on the progress of geothermal-related tasks on which effort was concentrated during the quarter. The second section, Operational Research, Hydroelectric Power Development, supported by the Department of Energy/Resource Applications (DOE/RA), contains a report on institutional problems for small-scale hydroelectric power development in the southeastern states and a list of documents published by APL in the hydroelectric program and in the geothermal program, above. The third section, Seismotectonic Investigations, contains an article on work on the geologic structure of the Danbury Quadrangle that is supported by the Reactor Safety Research Division of the Nuclear Regulatory Commission (NRC) and an in-house supported study on a new method for assessing earthquakes in intraplate regions. The fourth section, Energy Conversion and Storage Techniques, contains four articles. The first is an evaluation of the Einstein refrigerator, supported by independent IR and D funds. The second concerns fly-wheel technology development at APL supported by the Department of Energy, Division of Energy Storage (DOE/STOR). The third is a report on APL energy conservation efforts at its own buildings, and the fourth is an article on liquefied natural gas (LNG) safety evaluation, supported by the National Academy of Sciences. The fifth section explores the value of establishing an Energy Research Institute at The Johns Hopkins University.

  7. Energy Programs at the Johns Hopkins University Applied Physics Laboratory. Quarterly report, October-December 1979

    Energy Technology Data Exchange (ETDEWEB)

    None

    1979-12-01

    The Johns Hopkins University Applied Physics Laboratory, under contracts with several agencies of the federal government and an agency of the State of Maryland, is engaged in developing energy resources, utilization concepts, and storage methods. This Quarterly Report summarizes the work on the various tasks as of 31 December 1979. The Energy Quarterly Report is divided into five sections. The first, Geothermal Energy Development Planning and Technical Assistance, supported by the Department of Energy/Resource Applications (DOE/RA), contains reports on the progress of those geothermal-related tasks where effort was concentrated during the quarter. The second section, Operational Research, Hydroelectric Power Development, also supported by DOE/RA, contains reports on small-scale hydroelectric investigations in the southeastern states. The third section, Seismotectonic Studies, supported by the Reactor Safety Research Division of the Nuclear Regulatory Commission, reports on neotectonic investigations in Connecticut. The fourth section, Energy Conversion and Storage Techniques, contains two articles, the first on OTEC core unit testing supported by the Department of Energy, Division of Central Solar Technology (DOE/CST), and the second on recovery of landfill methane, supported by the Argonne National Laboratory. The fifth section, New Energy Technologies, reports on Laboratory studies of an unconventional gas source--Eastern Devonian shales.

  8. Progress report on fast breeder reactor development at PNC, Japan, October - December, 1974

    International Nuclear Information System (INIS)

    1975-03-01

    Following the completion of building construction and equipment installation for the experimental fast breeder reactor ''Joyo'' at PNC's Oarai Engineering Center, hydrostatic pressure and leak tests were conducted on the reactor vessel. For the prototype fast breeder reactor ''Monju'', specification was finalized after the design adjustment. For the period from October to December, 1974, the following matters are described: construction of the Joyo, design of the Monju, reactor physics, components and equipments, instruments and control, sodium technology, fuel and material research and development, safety research and development, and steam generator. (Mori, K.)

  9. Aquaculture Asia, Vol. 10, No. 4, pp.1-42, October-December 2005

    OpenAIRE

    2005-01-01

    *Table of Contents* Sustainable aquaculture Peter Edwards writes on rural aquaculture: Small-scale pond culture in Bangladesh. People in aquaculture Community based aquaculture - issues and challenges H.K. De and G.S. Saha. Aquaculture as an action programme: An exercise in building confidence and self worth. B. Shanthi, V.S. Chandrasekaran, M. Kailasam, M. Muralidar, T. Ravisankar,.C. Saradad and M. Krishnan The STREAM Column: Transforming policy recommendations into pro-p...

  10. Energy programs at the Johns Hopkins University Applied Physics Laboratory. Quarterly report, October--December 1978

    Energy Technology Data Exchange (ETDEWEB)

    1979-01-01

    The Johns Hopkins University Applied Physics Laboratory, under contracts with the U.S. Department of Energy, the National Science Foundation, U.S. Maritime Administration, Maryland Department of Natural Resources, U.S. Department of Commerce, and U.S. Fish and Wildlife Service, is engaged in developing energy resources, utilization concepts, and storage methods. This report is divided into four sections. The first, Geothermal Energy Programs, contains reports on various geothermal investigations in the Atlantic Coastal Plain; a Geothermal Energy Market Survey and a development scenario for the Delmarva area of Maryland. The second, Small-Scale Hydroelectric Energy, contains the results of several major studies on dams and on the economic and institutional issues related to their redevelopment. The third section contains progress reports on two major tasks performed for the Ocean Thermal Energy Conversion (OTEC) Program, Ocean Engineering and Heat Exchangers for OTEC systems. The fourth section, Conservation and Mechanical Storage of Energy, contains reports on flywheels and a JHU-funded heat pump application to the physical plant at APL.

  11. NRC TLD [thermoluminescent dosimeter] Direct Radiation Monitoring Network: Progress report, October--December 1988

    International Nuclear Information System (INIS)

    Struckmeyer, R.; NcNamara, N.

    1989-04-01

    This report presents the results of the NRC Direct Radiation Monitoring Network for the fourth quarter of 1988. It provides the ambient radiation levels measured in the vicinity of 75 sites throughout the United States. In addition, it describes the equipment used, monitoring station selection criteria, characterization of the dosimeter response, calibration procedures, statistical methods, intercomparison, and quality assurance program. 4 tabs

  12. NRC TLD Direct Radiation Monitoring Network progress report, October--December 1994. Volume 14, No. 4

    Energy Technology Data Exchange (ETDEWEB)

    Struckmeyer, R.

    1995-03-01

    This report presents the results of the NRC Direct Radiation Monitoring Network for the fourth quarter of 1994. It provides the ambient radiation levels measured in the vicinity of 75 sites throughout the United States. In addition, it describes the equipment used, monitoring station selection criteria, characterization of the dosimeter response, calibration procedures, statistical methods, intercomparison, and quality assurance program.

  13. NRC TLD Direct Radiation Monitoring Network. Progress report, October--December 1996

    Energy Technology Data Exchange (ETDEWEB)

    Struckmeyer, R.

    1997-03-01

    This report presents the results of the NRC Direct Radiation Monitoring Network for the fourth quarter of 1996. It provides the ambient radiation levels measured in the vicinity of 74 sites throughout the United States. In addition, it describes the equipment used, monitoring station selection criteria, characterization of the dosimeter response, calibration procedures, statistical methods, intercomparison, and quality assurance program. 3 figs., 4 tabs.

  14. NRC TLD Direct Radiation Monitoring Network progress report, October--December 1994. Volume 14, No. 4

    International Nuclear Information System (INIS)

    Struckmeyer, R.

    1995-03-01

    This report presents the results of the NRC Direct Radiation Monitoring Network for the fourth quarter of 1994. It provides the ambient radiation levels measured in the vicinity of 75 sites throughout the United States. In addition, it describes the equipment used, monitoring station selection criteria, characterization of the dosimeter response, calibration procedures, statistical methods, intercomparison, and quality assurance program

  15. Abnormal duodenal loop demonstrated by X-ray

    International Nuclear Information System (INIS)

    Thommesen, P.; Funch-Jensen, P.

    1986-01-01

    The occurrence of dyspeptic symptoms has previously been correlated with the shape of the duodenal loop in patients with X-ray-negative dyspepsia. An abnormal duodenal loop was associated with a significantly higher incidence of symtoms provoked by meals, vomiting, regurgitations, heartburn, and the irritable bowel syndrome. 89% of these patients (26 patients with a normal duodenal loop and 39 patients with abnormal duodenal loop) were available for a 5-year follow-up study of symptomatic outcome. The incidence of symptoms provoked by meals was still significantly higher in patients with an abnormal duodenal loop, and there was also a significant difference concerning symptomatic outcome. Approximately 75% of the patients with a normal duodenal loop had improved, and 25% had unchanged clinical conditions. Approximately 50% of the patients with an abnormal duodenal loop had improved, and 50% had an unchanged or even deteriorated clinical condition

  16. Concurrent Occurrence of Uterovaginal and Rectal Prolapse: An ...

    African Journals Online (AJOL)

    skin hyper-extensibility, abnormal wound healing, and joint hypermobility, is commonly associated with uterovaginal ... of a live male baby. The concomitant protrusions occurred. Concurrent Occurrence of Uterovaginal and Rectal. Prolapse: An Uncommon PresentaƟon. Umeh UA1, Ugwu EO1,2, Obi SN1,2, Nnagbo JE1.

  17. The occurrence and development of 'Siamese twins' and other ...

    African Journals Online (AJOL)

    1991-10-21

    Oct 21, 1991 ... In many instances the twins are co joined by other body parts such as the head or the tail, or one individual appears normal with a malformed sibling attached on its flank or ventrum. The above authors briefly comment on these abnormal occurrences. In this paper, the develop- ment of two pairs of twins in ...

  18. A Rare Stapes Abnormality

    Directory of Open Access Journals (Sweden)

    Hala Kanona

    2015-01-01

    Full Text Available The aim of this study is to increase awareness of rare presentations, diagnostic difficulties alongside management of conductive hearing loss and ossicular abnormalities. We report the case of a 13-year-old female reporting progressive left-sided hearing loss and high resolution computed tomography was initially reported as normal. Exploratory tympanotomy revealed an absent stapedius tendon and lack of connection between the stapes superstructure and footplate. The footplate was fixed. Stapedotomy and stapes prosthesis insertion resulted in closure of the air-bone gap by 50 dB. A review of world literature was performed using MedLine. Middle ear ossicular discontinuity can result in significant conductive hearing loss. This can be managed effectively with surgery to help restore hearing. However, some patients may not be suitable or decline surgical intervention and can be managed safely conservatively.

  19. Analysis of abnormalities of snubbers in nuclear-reactor service (Report 1)

    Energy Technology Data Exchange (ETDEWEB)

    Butler, J.H.; O' Hara, F.M. Jr.

    1976-10-14

    An investigation was conducted of malfunctions of snubbers (seismic-shock arrestors) in service in nuclear power plants. The construction and use of snubbers is summarized, and the history of snubber problems in nuclear service is reviewed. Reports of many hundreds of snubber malfunctions were found in the abnormal-occurrence reports of the docket literature. The great majority of these abnormal occurrences consisted of hydraulic snubbers whose hydraulic fluid had leaked out because of deteriorated seals; snubbers that were damaged in manufacture, shipping, installation, refitting, or use; and snubbers whose performance did not match service requirements. Additional information about the failures was obtained from the reactor operators, snubber manufacturers, reactor vendors, and independent laboratories. The abnormal occurrences were classified into 12 categories. Analyses of the causes of the individual abnormalities are presented, and preliminary comments on the current state of snubber manufacture and use are made.

  20. Analysis of abnormalities of snubbers in nuclear-reactor service (Report 1)

    International Nuclear Information System (INIS)

    Butler, J.H.; O'Hara, F.M. Jr.

    1976-01-01

    An investigation was conducted of malfunctions of snubbers (seismic-shock arrestors) in service in nuclear power plants. The construction and use of snubbers is summarized, and the history of snubber problems in nuclear service is reviewed. Reports of many hundreds of snubber malfunctions were found in the abnormal-occurrence reports of the docket literature. The great majority of these abnormal occurrences consisted of hydraulic snubbers whose hydraulic fluid had leaked out because of deteriorated seals; snubbers that were damaged in manufacture, shipping, installation, refitting, or use; and snubbers whose performance did not match service requirements. Additional information about the failures was obtained from the reactor operators, snubber manufacturers, reactor vendors, and independent laboratories. The abnormal occurrences were classified into 12 categories. Analyses of the causes of the individual abnormalities are presented, and preliminary comments on the current state of snubber manufacture and use are made

  1. Cerebral white matter changes are associated with abnormalities on neurological examination in non-disabled elderly

    DEFF Research Database (Denmark)

    Poggesi, Anna; Gouw, Alida; van der Flier, Wiesje

    2013-01-01

    age 74.1 ± 5.0, M/F: 288/351). Severe WMC at baseline were associated with gait and stance abnormalities, upper motor signs, and fingertap slowing. This effect was independent of age, sex, lacunar and non-lacunar infarcts. The occurrence of stance abnormalities, upper motor signs, primitive reflexes......Cerebral white matter changes (WMC) are associated with motor, cognitive, mood, urinary disturbances, and disability, but little is known about the prevalence of neurological signs in patients with these brain lesions. We assessed the presence and occurrence of neurological abnormalities over a 3...... and fingertap slowing during the 3-year follow-up period was associated with both baseline WMC load and their progression. The occurrence of the same abnormalities plus extrapyramidal and primitive reflexes was associated with incident lacunar infarcts. In our cohort of non-disabled elders, severe WMC were...

  2. Lessons learned from occurrences involving procedures at Los Alamos National Laboratory in 1994

    Energy Technology Data Exchange (ETDEWEB)

    Frostenson, C.K.

    1995-07-01

    This study used the Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS) data to investigate occurrences reported during one year at Los Alamos National Laboratory (LANL). ORPS provides a centralized database and computerized support for the Collection, distribution, updating, analysis, and validation of information in occurrence reports about abnormal events related to facility operation. Human factors causes for occurrences are not always defined in ORPS. Content analysis of narrative data revealed that 33% of all LANL 1994 adverse operational events have human factors causes related to procedures. Procedure-caused occurrences that resulted in injury to workers, damage to facilities or equipment, or a near-miss are analyzed.

  3. A case of refractory anemia with chromosomal abnormality (5q-) in Nagasaki atomic bomb survivor

    International Nuclear Information System (INIS)

    Kusano, Miyuki; Ikeda, Shuichi; Tomonaga, Yu; Sadamori, Naoki; Matsunaga, Masako

    1978-01-01

    Although assumed to be almost free from the effect of A-bomb radiation on the basis of the estimated dose, this case had progressive anemia with a specific manifestation and disclosed a clone with chromosomal abnormality (5q - ). In pure leukemia, a clone of abnormal chromosome is considered exactly that of leukemia. However, the presence of clones with chromosomal abnormality which are found in polycythemia vera or myelofibrosis do not always denote the leukemic changes. There is no established theory as to the significance of the clones with chromosomal abnormality in refractory anemia. Thus the interpretation of chromosomal abnormality in blood diseases is very difficult. Therefore analysis of chromosomes will be made actively in leukemia and related diseases as well as refractory anemia and preleukemia, and those will be compared in detail to search the relation between on occurrence of leukemia and chromosomal abnormality and also that between chromosomal abnormality and exposure to radiation. (Ueda, J.)

  4. Abnormal neuronal migration: radiologic-clinic study

    International Nuclear Information System (INIS)

    Martinez Fernandez, M.; Menor Serrano, F.; Bordon Ferre, F.; Garcia Tena, J.; Esteban Hernandez, E.; Sanguesa Nebot, C.; Marti Bonnati, L.

    1994-01-01

    We present our experience in 18 pediatric patients with abnormal neuronal migration. Seven cases of heterotopia of the gray matter, 7 agyria-pachygyria complexes, 1 case of polymicrogyria, 2 cases of schizencephaly and 1 case of hemimegalencephaly were diagnosed by means of ultrasonography, computed tomography and magnetic resonance. The clinical picture was reviewed in each case, with special attention to the occurrence of convulsions, psycho motor development and visual changes. In general, the greater the morphological change, the greater the neurological involvement in these patients. However, the two cases of schizencephaly presented mild clinical expression. Magnetic resonance increases the diagnostic yield in neuronal migration disorders. Nevertheless, either ultrasonography or, especially, computed tomography is useful as a first diagnostic approach in these malformative disorders. (Author)

  5. Abnormal pressure in hydrocarbon environments

    Science.gov (United States)

    Law, B.E.; Spencer, C.W.

    1998-01-01

    Abnormal pressures, pressures above or below hydrostatic pressures, occur on all continents in a wide range of geological conditions. According to a survey of published literature on abnormal pressures, compaction disequilibrium and hydrocarbon generation are the two most commonly cited causes of abnormally high pressure in petroleum provinces. In young (Tertiary) deltaic sequences, compaction disequilibrium is the dominant cause of abnormal pressure. In older (pre-Tertiary) lithified rocks, hydrocarbon generation, aquathermal expansion, and tectonics are most often cited as the causes of abnormal pressure. The association of abnormal pressures with hydrocarbon accumulations is statistically significant. Within abnormally pressured reservoirs, empirical evidence indicates that the bulk of economically recoverable oil and gas occurs in reservoirs with pressure gradients less than 0.75 psi/ft (17.4 kPa/m) and there is very little production potential from reservoirs that exceed 0.85 psi/ft (19.6 kPa/m). Abnormally pressured rocks are also commonly associated with unconventional gas accumulations where the pressuring phase is gas of either a thermal or microbial origin. In underpressured, thermally mature rocks, the affected reservoirs have most often experienced a significant cooling history and probably evolved from an originally overpressured system.

  6. How 'idiopathic' is adolescent idiopathic scoliosis? A systematic review on associated abnormalities.

    Directory of Open Access Journals (Sweden)

    Tom P C Schlösser

    Full Text Available BACKGROUND: Despite more than a century of dedicated research, the etiology and pathogenesis of adolescent idiopathic scoliosis (AIS remain unclear. By definition, 'idiopathic' implies an unknown cause. Nevertheless, many abnormalities concomitant to AIS have been described, often with the suggestion that these abnormalities are related to etio-pathogenesis. Insight in the concomitant abnormalities may assist in improving the understanding of the etiological pathways of AIS. We aimed to systematically review and synthesize available studies on abnormalities concomitant to AIS. METHODS: Original studies comparing untreated AIS patients with healthy adolescents on abnormalities other than the deformity of the spine were retrieved from PubMed and Embase. We followed PRISMA guidelines and to quantify the relationship between each abnormality and AIS we used a best-evidence-syntheses for relating risk-of-bias to consistency of effect sizes. RESULTS: We identified 88 relevant citations, forty-seven carried high risk-of-bias and twenty studies did not report quantitative data in a sufficient manner. The remaining twenty-one publications failed to report data from before initiation of the deformity and blind assessments. These cross-sectional studies provided data on fourteen abnormalities concomitant to AIS. With our best-evidence-syntheses we were unable to find both strong evidence and a consistent pattern of occurrence for AIS and any of these abnormalities. From moderate risk-of-bias studies a relatively consistent pattern of occurrence for AIS and impaired gait control (4 studies; 155 subjects; Cohen's d = 1.00 and decreased bone mineral density (2 studies; 954 subjects; Cohen's d = -0.83 was found. For nine abnormalities a consistent pattern of occurrence with AIS was found, but the evidence for these was weak. CONCLUSIONS: Based on the available literature, strong evidence is lacking for a consistent pattern of occurrence of AIS and any

  7. Abnormal Bleeding during Menopause Hormone Therapy: Insights for Clinical Management

    Directory of Open Access Journals (Sweden)

    Sebastião Freitas De Medeiros

    2013-01-01

    Full Text Available Objective Our objective was to review the involved mechanisms and propose actions for controlling/treating abnormal uterine bleeding during climacteric hormone therapy. Methods A systemic search of the databases SciELO, MEDLINE, and Pubmed was performed for identifying relevant publications on normal endometrial bleeding, abnormal uterine bleeding, and hormone therapy bleeding. Results Before starting hormone therapy, it is essential to exclude any abnormal organic condition, identify women at higher risk for bleeding, and adapt the regimen to suit eachwoman's characteristics. Abnormal bleeding with progesterone/progestogen only, combined sequential, or combined continuous regimens may be corrected by changing the progestogen, adjusting the progestogen or estrogen/progestogen doses, or even switching the initial regimen to other formulation. Conclusion To diminish the occurrence of abnormal bleeding during hormone therapy (HT, it is important to tailor the regimen to the needs of individual women and identify those with higher risk of bleeding. The use of new agents as adjuvant therapies for decreasing abnormal bleeding in women on HT awaits future studies.

  8. Somatosensory abnormalities in knee OA.

    Science.gov (United States)

    Wylde, Vikki; Palmer, Shea; Learmonth, Ian D; Dieppe, Paul

    2012-03-01

    The aim of this study was to use quantitative sensory testing (QST) to explore the range and prevalence of somatosensory abnormalities demonstrated by patients with advanced knee OA. One hundred and seven knee OA patients and 50 age- and sex-matched healthy participants attended a 1-h QST session. Testing was performed on the medial side of the knee and the pain-free forearm. Light-touch thresholds were assessed using von Frey filaments, pressure pain thresholds using a digital pressure algometer, and thermal sensation and pain thresholds using a Thermotest MSA. Significant differences in median threshold values from knee OA patients and healthy participants were identified using Mann-Whitney U-tests. The z-score transformations were used to determine the prevalence of the different somatosensory abnormalities in knee OA patients. Testing identified 70% of knee OA patients as having at least one somatosensory abnormality. Comparison of median threshold values between knee OA patients and healthy participants revealed that patients had localized thermal and tactile hypoaesthesia and pressure hyperalgesia at the osteoarthritic knee. Tactile hypoaesthesia and pressure hyperalgesia were also present at the pain-free forearm. The most prevalent somatosensory abnormalities were tactile hypoaesthesia and pressure hyperalgesia, evident in between 20 and 34% of patients. This study found that OA patients demonstrate an array of somatosensory abnormalities, of which the most prevalent were tactile hypoaesthesia and pressure hyperalgesia. Further research is now needed to establish the clinical implications of these somatosensory abnormalities.

  9. Neuroimaging abnormalities in Griscelli's disease

    International Nuclear Information System (INIS)

    Sarper, Nazan; Akansel, Guer; Aydogan, Metin; Gedikbasi, Demet; Babaoglu, Kadir; Goekalp, Ayse Sevim

    2002-01-01

    Griscelli's disease is a rare autosomal recessive immunodeficiency syndrome. We report a 7-1/2-month-old white girl who presented with this syndrome, but initially without neurological abnormalities. Initial CT of the brain was normal. Despite haematological remission with chemotherapy, she developed neurological symptoms, progressing to coma. At this time, CT showed areas of coarse calcification in the globi pallidi, left parietal white matter and left brachium pontis. Hypodense areas were present in the genu and posterior limb of the internal capsule on the right side, as well as posterior aspects of both thalami, together with minimal generalised atrophy. MRI revealed areas of increased T2 signal and a focal area of abnormal enhancement in the subcortical white matter. Griscelli's disease should be added to the list of acquired neuroimaging abnormalities in infants. (orig.)

  10. Triorchidism: A Rare Genitourinary Abnormality

    African Journals Online (AJOL)

    During early adulthood it will be carried out by palpation, ultrasonography, semen analysis, serum testosterone and follicle stimulating hormone levels and during late adulthood follow up will be done by ultrasonography for malignancy every 2 years. CONCLUSION. Polyorchidism is a rare genitourinary abnormality and its.

  11. Chromosomal abnormalities associated with omphalocele.

    Science.gov (United States)

    Chen, Chih-Ping

    2007-03-01

    Fetuses with omphalocele have an increased risk for chromosomal abnormalities. The risk varies with maternal age, gestational age at diagnosis, association with umbilical cord cysts, complexity of associated anomalies, and the contents of omphalocele. There is considerable evidence that genetics contributes to the etiology of omphalocele. This article provides an overview of chromosomal abnormalities associated with omphalocele and a comprehensive review of associated full aneuploidy such as trisomy 18, trisomy 13, triploidy, trisomy 21, 45,X, 47,XXY, and 47,XXX, partial aneuploidy such as dup (3q), dup (11p), inv (11), dup (1q), del (1q), dup (4q), dup (5p), dup (6q), del (9p), dup (15q), dup(17q), Pallister-Killian syndrome with mosaic tetrasomy 12p and Miller-Dieker lissencephaly syndrome with deletion of 17p13.3, and uniparental disomy (UPD) such as UPD 11 and UPD 14. Omphalocele is a prominent marker for chromosomal abnormalities. Perinatal identification of omphalocele should alert chromosomal abnormalities and familial unbalanced translocations, and prompt thorough cytogenetic investigations and genetic counseling.

  12. Chromosomal Abnormalities Associated With Omphalocele

    Directory of Open Access Journals (Sweden)

    Chih-Ping Chen

    2007-03-01

    Full Text Available Fetuses with omphalocele have an increased risk for chromosomal abnormalities. The risk varies with maternal age, gestational age at diagnosis, association with umbilical cord cysts, complexity of associated anomalies, and the contents of omphalocele. There is considerable evidence that genetics contributes to the etiology of omphalocele. This article provides an overview of chromosomal abnormalities associated with omphalocele and a comprehensive review of associated full aneuploidy such as trisomy 18, trisomy 13, triploidy, trisomy 21, 45,X, 47,XXY, and 47,XXX, partial aneuploidy such as dup(3q, dup(11p, inv(11, dup(1q, del(1q, dup(4q, dup(5p, dup(6q, del(9p, dup(15q, dup(17q, Pallister-Killian syndrome with mosaic tetrasomy 12p and Miller-Dieker lissencephaly syndrome with deletion of 17p13.3, and uniparental disomy (UPD such as UPD 11 and UPD 14. Omphalocele is a prominent marker for chromosomal abnormalities. Perinatal identification of omphalocele should alert chromosomal abnormalities and familial unbalanced translocations, and prompt thorough cytogenetic investigations and genetic counseling.

  13. Admission haematological abnormalities and postoperative ...

    African Journals Online (AJOL)

    Admission haematological abnormalities and postoperative outcomes in neonates with acute surgical conditions in Alexandria, Egypt. HL Wella, SMM Farahat. Abstract. No Abstract. Full Text: EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT · AJOL African Journals ...

  14. An Unusual Occurrence of Multiple Dental Anomalies in a Single Nonsyndromic Patient: A Case Report

    Directory of Open Access Journals (Sweden)

    N. B. Nagaveni

    2012-01-01

    Full Text Available Dental anomalies are the formative defects caused by genetic disturbances or environmental factors during tooth morphogenesis. Simultaneous occurrence of various multiple anomalies has been reported previously, particularly in cases of chromosomal abnormalities that often manifest with multisystem involvement. Very few cases of multiple anomalies have been documented in patients with no known generalized abnormalities. The present paper shows an unusual occurrence of a combination of dental anomalies like mandibular canine transmigration, taurodontism in permanent mandibular molars, congenital agenesis of 14 numbers of permanent teeth excluding third molars, canine impaction, primary molars with pyramidal roots, midline diastema and generalized microdontia in an apparently normal 13-year-old Indian girl.

  15. Echocardiographic abnormalities in hypertensive patients

    International Nuclear Information System (INIS)

    Rodulfo Garcia, Maikel; Tornes Perez, Victor Manuel; Castellanos Tardo, Juan Ramon

    2012-01-01

    A descriptive cross-sectional study was carried out in 120 hypertensive patients with a course of 5 or more years, who went to the emergency room of 'Saturnino Lora' Provincial Teaching Hospital from November 2010 to November 2011 in order to determine the presence or absence of echocardiographic abnormalities typical of hypertension. Of these, 78,3 % was affected, most of whom reported not to continue with regular previous medical treatment, and 21,7 % had not these abnormalities. Age group of 50-60 years, males and blacks prevailed in the case material. The most significant echocardiographic findings were left ventricular hypertrophy and heart failure with ejection fraction of left ventricle preserved

  16. Glial abnormalities in mood disorders.

    Science.gov (United States)

    Öngür, Dost; Bechtholt, Anita J; Carlezon, William A; Cohen, Bruce M

    2014-01-01

    Multiple lines of evidence indicate that mood disorders are associated with abnormalities in the brain's cellular composition, especially in glial cells. Considered inert support cells in the past, glial cells are now known to be important for brain function. Treatments for mood disorders enhance glial cell proliferation, and experimental stimulation of cell growth has antidepressant effects in animal models of mood disorders. These findings suggest that the proliferation and survival of glial cells may be important in the pathogenesis of mood disorders and may be possible targets for the development of new treatments. In this article we review the evidence for glial abnormalities in mood disorders, and we discuss glial cell biology and evidence from postmortem studies of mood disorders. The goal is not to carry out a comprehensive review but to selectively discuss existing evidence in support of an argument for the role of glial cells in mood disorders.

  17. Abnormal Metabolite in Alcoholic Subjects,

    Science.gov (United States)

    1982-01-01

    0.01 0.12 81 A.A. 51 M 0 ɘ.01 0.09 Schizophrenia 85a W.G. 67 M 0 ɘ.01 0.21 Proteins & Ketones in Urine b 0 ɘ.01 0.11 86a W.H. 67 M 0 ɘ.01 0.15 b 0...AD-AS 90 TOTTS GAP MEDICAL RESEARCH LABS INC BANGOR PA F/G 6/5 ABNORMAL METABOLITE IN ALCOHOLIC SUBJECTS, U) 1982 R L BEECH, M E FELVER, M R...LAKSCHMANAN NOOBIN 70 C 0233 UNJCLASSIFIED NL I ,I/ ABNORMAL METABOLITE IN ALCOHOLIC SUBJECTS Richard L . Veech, Michael E. Felver, M.R. Lakschmanan, Stewart

  18. Computed tomography abnormalities in hanging

    International Nuclear Information System (INIS)

    Bianco, F.; Floris, R.

    1987-01-01

    The CT pattern of bilateral and symmetrical round low density areas in the globi pallidi has been observed in a young man who attempted suicide by hanging. These CT abnormalities are similar to those described in other conditions such as carbon monoxide, hydrogen sulfide, cyanide and methanol poisoning, hypoglycaemia, drowning and acute global central nervous system hypoperfusion.The findings appear to be correlated with acute cerebral hypoxia. (orig.)

  19. GLIAL ABNORMALITIES IN MOOD DISORDERS

    OpenAIRE

    Öngür, Dost; Bechtholt, Anita J.; Carlezon, William A.; Cohen, Bruce M.

    2014-01-01

    Multiple lines of evidence indicate that mood disorders are associated with abnormalities in the brain's cellular composition, especially in glial cells. Considered inert support cells in the past, glial cells are now known to be important for brain function. Treatments for mood disorders enhance glial cell proliferation, and experimental stimulation of cell growth has antidepressant effects in animal models of mood disorders. These findings suggest that the proliferation and survival of glia...

  20. Mastoid abnormalities in Down syndrome

    International Nuclear Information System (INIS)

    Glass, R.B.J.; Yousefzadeh, D.K.; Roizen, N.J.

    1989-01-01

    Hearing loss and otitis media are commonly associated with Down syndrome. Hypoplasia of the mastoids is seen in many affected children and sclerosis of mastoid bones is not uncommon in Down syndrome. Awareness and early recognition of mastoid abnormality may lead to appropriate and timely therapy, thereby preserving the child's hearing or compensating for hearing loss; factors which are important for learning and maximum development. (orig.)

  1. Mastoid abnormalities in Down syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Glass, R.B.J.; Yousefzadeh, D.K.; Roizen, N.J.

    1989-06-01

    Hearing loss and otitis media are commonly associated with Down syndrome. Hypoplasia of the mastoids is seen in many affected children and sclerosis of mastoid bones is not uncommon in Down syndrome. Awareness and early recognition of mastoid abnormality may lead to appropriate and timely therapy, thereby preserving the child's hearing or compensating for hearing loss; factors which are important for learning and maximum development.

  2. Abnormal uterine bleeding in perimenopause.

    Science.gov (United States)

    Goldstein, S R; Lumsden, M A

    2017-10-01

    Abnormal uterine bleeding is one of the commonest presenting complaints encountered in a gynecologist's office or primary-care setting. The wider availability of diagnostic tools has allowed prompt diagnosis and treatment of an increasing number of menstrual disorders in an office setting. This White Paper reviews the advantages and disadvantages of transvaginal ultrasound, blind endometrial sampling and diagnostic hysteroscopy. Once a proper diagnosis has been established, appropriate therapy may be embarked upon. Fortunately, only a minority of such patients will have premalignant or malignant disease. When bleeding is sufficient to cause severe anemia or even hypovolemia, prompt intervention is called for. In most of the cases, however, the abnormal uterine bleeding will be disquieting to the patient and significantly affect her 'quality of life'. Sometimes, reassurance and expectant management will be sufficient in such patients. Overall, however, in cases of benign disease, some intervention will be required. The use of oral contraceptive pills especially those with a short hormone-free interval, the insertion of the levonorgestrel intrauterine system, the incorporation of newer medical therapies including antifibrinolytic drugs and selective progesterone receptor modulators and minimally invasive treatments have made outpatient therapy increasingly effective. For others, operative hysteroscopy and endometrial ablation are proven therapeutic tools to provide both long- and short-term relief of abnormal uterine bleeding, thus avoiding, or deferring, hysterectomy.

  3. Overview of Epidemiology, Genetics, Birth Defects, and Chromosome Abnormalities Associated With CDH

    OpenAIRE

    Pober, Barbara R.

    2007-01-01

    Congenital diaphragmatic hernia (CDH) is a common and well-studied birth defect. The etiology of most cases remains unknown but increasing evidence points to genetic causation. The data supporting genetic etiologies which are detailed below include the association of CDH with recurring chromosome abnormalities, the existence of CDH-multiplex families, and the co-occurrence of CDH with additional congenital malformations.

  4. Patterns of epileptic seizure occurrence.

    Science.gov (United States)

    Amengual-Gual, Marta; Sánchez Fernández, Iván; Loddenkemper, Tobias

    2018-02-23

    The occurrence of epileptic seizures in seemingly random patterns takes a great toll on persons with epilepsy and their families. Seizure prediction may markedly improve epilepsy management and, therefore, the quality of life of persons with epilepsy. Literature review. Seizures tend to occur following complex non-random patterns. Circadian oscillators may contribute to the rhythmic patterns of seizure occurrence. Complex mathematical models based on chaos theory try to explain and even predict seizure occurrence. There are several patterns of epileptic seizure occurrence based on seizure location, seizure semiology, and hormonal factors, among others. These patterns are most frequently described for large populations. Inter-individual variability and complex interactions between the rhythmic generators continue to make it more difficult to predict seizures in any individual person. The increasing use of large databases and machine learning techniques may help better define patterns of seizure occurrence in individual patients. Improvements in seizure detection -such as wearable seizure detectors- and in seizure prediction -such as machine learning techniques and artificial as well as biological intelligence- promise to provide further progress in the field of epilepsy and are being applied to closed-loop systems for the treatment of epilepsy. Seizures tend to occur following complex and patient-specific patterns despite their apparently random occurrence. A better understanding of these patterns and current technological advances may allow the implementation of closed-loop detection, prediction, and treatment systems in routine clinical practice. Copyright © 2018. Published by Elsevier B.V.

  5. 75 FR 41553 - Report to Congress on Abnormal Occurrences Fiscal Year 2009; Dissemination of Information

    Science.gov (United States)

    2010-07-16

    ... patient was prescribed to receive 34 Gy (3,400 rad) to the right breast but received 34 Gy (3,400 rad) to... site in the right breast. Due to this programming error, the dose intended for the right breast was... caused the wrong nerve to receive treatment. The error was identified by the neurosurgeon 9 minutes into...

  6. 76 FR 38214 - Report to Congress on Abnormal Occurrences; Fiscal Year 2010; Dissemination of Information

    Science.gov (United States)

    2011-06-29

    ... April 26, 2010, the patient performed a home pregnancy test that resulted in a positive test result. The... possible due to high radiation dose to a tiny volume of the brain stem tissue and an increased risk of...

  7. 78 FR 54493 - Report to Congress on Abnormal Occurrences: Fiscal Year 2012, Revision 1; Dissemination of...

    Science.gov (United States)

    2013-09-04

    ... company; and an inspection of all of the licensee's equipment, with replacement as needed. The radiographer trainer was retrained and re-tested. The licensee stated it will incorporate routine equipment... the plant on the replacement equipment or other similar equipment. NRC--The NRC transitioned FCS...

  8. 77 FR 37446 - Report to Congress on Abnormal Occurrences; Fiscal Year 2011; Dissemination of Information

    Science.gov (United States)

    2012-06-21

    .../gynecologist. The ultrasound performed by the patient's obstetrician/gynecologist revealed that the patient was... ultrasound unit. Actions Taken To Prevent Recurrence Licensee--The licensee's Radiation Oncology Department... medicine technologist noticed something was wrong based on the scan results. The impact of this event on...

  9. Collection and evalution of abnormal occurrences in German nuclear power plants

    International Nuclear Information System (INIS)

    Hoffmeister

    1976-01-01

    The systematic consideration of operating experiences which must be recorded, collected and evaluated, is important for the realisation of the aim of greater safety in nuclear power stations. Since commissioning of the first nuclear power stations in West Germany all significant events were communicated to the 'Laender' authorities responsible for controlling compliance with the licensing requirements. The evaluation of these events assured that the necessary consequences were carried out to prevent any recurrence. A systematic consideration of the operating experiences, however, was missing; therefore our institute was made responsible by the Federal Ministry of the Interior with the agreement of the 'Laender' authorities to record, collect and evaluate in accordance with reporting criteria and a classification system related to safety relevance. (orig./RW) [de

  10. CT abnormality in multiple sclerosis analysis based on 28 probable cases and correlation with clinical manifestations

    International Nuclear Information System (INIS)

    Kakigi, Ryusuke; Shibasaki, Hiroshi; Tabira, Takeshi; Kuroiwa, Yoshigoro; Numaguchi, Yuji.

    1981-01-01

    In order to investigate the occurrence and nature of CT abnormality and its correlation with clinical manifestations in multiple sclerosis, 34 CT records obtained from 28 consecutive patients with probable multiple sclerosis were reviewed. Forty-six percent of all cases showed abnormal CT. Dilatation of cortical sulci was found in 39%; dilatation of the lateral ventricle in 36%; dilatation of prepontine or cerebello-pontine cistern and the fourth ventricle, suggesting brainstem atrophy, in 18%; dilatation of cerebellar sulci, superior cerebellar cistern and cisterna magna, suggesting cerebellar atrophy, in 11%. Low density area was found in the cerebral hemisphere in 11% of cases. Contrast enhancement, performed on 25 CT records, did not show any change. There was no correlation between CT abnormality and duration of the illness. Although abnormal CT tended to occur more frequently during exacerbations and chronic stable state than during remissions, the difference was not statistically significant. CT abnormalities suggesting brainstem atrophy, cerebellar atrophy or plaques were found exclusively during exacerbations and chronic stable state. The occurrence of CT abnormalities was not significantly different among various clinical forms which were classified based on clinically estimated sites of lesion, except that abnormal CT tended to occur less frequently in cases classified as the optic-spinal form. It is noteworthy that cerebral cortical atrophy and/or dilatation of the lateral ventricle were found in 31% of cases who did not show any clinical sign of cerebral involvement. There was a statistically significant correlation between CT abnormalities and levels of clinical disability. Eighty percent of the bedridden or severely disabled patients showed abnormal CT, in contrast with only 29% of those with moderate, slight or no disability. (author)

  11. CT abnormality in multiple sclerosis analysis based on 28 probable cases and correlation with clinical manifestations

    Energy Technology Data Exchange (ETDEWEB)

    Kakigi, R.; Shibasaki, H.; Tabira, T.; Kuroiwa, Y. (Kyushu Univ., Fukuoka (Japan). Faculty of Medicine); Numaguchi, Y.

    1981-10-01

    In order to investigate the occurrence and nature of CT abnormality and its correlation with clinical manifestations in multiple sclerosis, 34 CT records obtained from 28 consecutive patients with probable multiple sclerosis were reviewed. Forty-six percent of all cases showed abnormal CT. Dilatation of cortical sulci was found in 39%; dilatation of the lateral ventricle in 36%; dilatation of prepontine or cerebello-pontine cistern and the fourth ventricle, suggesting brainstem atrophy, in 18%; dilatation of cerebellar sulci, superior cerebellar cistern and cisterna magna, suggesting cerebellar atrophy, in 11%. Low density area was found in the cerebral hemisphere in 11% of cases. Contrast enhancement, performed on 25 CT records, did not show any change. There was no correlation between CT abnormality and duration of the illness. Although abnormal CT tended to occur more frequently during exacerbations and chronic stable state than during remissions, the difference was not statistically significant. CT abnormalities suggesting brainstem atrophy, cerebellar atrophy or plaques were found exclusively during exacerbations and chronic stable state. The occurrence of CT abnormalities was not significantly different among various clinical forms which were classified based on clinically estimated sites of lesion, except that abnormal CT tended to occur less frequently in cases classified as the optic-spinal form. It is noteworthy that cerebral cortical atrophy and/or dilatation of the lateral ventricle were found in 31% of cases who did not show any clinical sign of cerebral involvement. There was a statistically significant correlation between CT abnormalities and levels of clinical disability. Eighty percent of the bedridden or severely disabled patients showed abnormal CT, in contrast with only 29% of those with moderate, slight or no disability.

  12. Abnormal thermography in Parkinson's disease.

    Science.gov (United States)

    Antonio-Rubio, I; Madrid-Navarro, C J; Salazar-López, E; Pérez-Navarro, M J; Sáez-Zea, C; Gómez-Milán, E; Mínguez-Castellanos, A; Escamilla-Sevilla, F

    2015-08-01

    An autonomic denervation and abnormal vasomotor reflex in the skin have been described in Parkinson's disease (PD) and might be evaluable using thermography with cold stress test. A cross-sectional pilot study was undertaken in 35 adults: 15 patients with PD and abnormal [(123)I]-metaiodobenzylguanidine cardiac scintigraphy and 20 healthy controls. Baseline thermography of both hands was obtained before immersing one in cold water (3 ± 1 °C) for 2 min. Continuous thermography was performed in: non-immersed hand (right or with lesser motor involvement) during immersion of the contralateral hand and for 6 min afterward; and contralateral immersed hand for 6 min post-immersion. The region of interest was the dorsal skin of the third finger, distal phalanx. PD patients showed a lower mean baseline hand temperature (p = 0.037) and greater thermal difference between dorsum of wrist and third finger (p = 0.036) and between hands (p = 0.0001) versus controls, regardless of the motor laterality. Both tests evidenced an adequate capacity to differentiate between groups: in the non-immersed hand, the PD patients did not show the normal cooling pattern or final thermal overshoot observed in controls (F = 5.29; p = 0.001), and there was an AUC of 0.897 (95%CI 0.796-0.998) for this cooling; in the immersed hand, thermal recovery at 6 min post-immersion was lesser in patients (29 ± 17% vs. 55 ± 28%, p = 0.002), with an AUC of 0.810 (95%CI 0.662-0.958). PD patients reveal abnormal skin thermal responses in thermography with cold stress test, suggesting cutaneous autonomic dysfunction. This simple technique may be useful to evaluate autonomic dysfunction in PD. Copyright © 2015 Elsevier Ltd. All rights reserved.

  13. Abnormal Cervical Cancer Screening Test Results

    Science.gov (United States)

    ... lesion? • What are the different types of abnormal Pap test results? • What testing is needed after an abnormal ... that could lead to cancer. Screening includes the Pap test and, for some women, testing for a virus ...

  14. MR imaging of abnormal synovial processes

    International Nuclear Information System (INIS)

    Quinn, S.F.; Sanchez, R.; Murray, W.T.; Silbiger, M.L.; Ogden, J.; Cochran, C.

    1987-01-01

    MR imaging can directly image abnormal synovium. The authors reviewed over 50 cases with abnormal synovial processes. The abnormalities include Baker cysts, semimembranous bursitis, chronic shoulder bursitis, peroneal tendon ganglion cyst, periarticular abscesses, thickened synovium from rheumatoid and septic arthritis, and synovial hypertrophy secondary to Legg-Calve-Perthes disease. MR imaging has proved invaluable in identifying abnormal synovium, defining the extent and, to a limited degree, characterizing its makeup

  15. Genetic Abnormalities in Oral Leukoplakia and Oral Cancer Progression.

    Science.gov (United States)

    Kil, Tae Jun; Kim, Hyun Sil; Kim, Hyung Jun; Nam, Woong; Cha, In-Ho

    2016-01-01

    The cancer progression of oral leukoplakia is an important watchpoint in the follow-up observation of the patients. However, potential malignancies of oral leukoplakia cannot be estimated by histopathologic assessment alone. We evaluated genetic abnormalities at the level of copy number variation (CNV) to investigate the risk for developing cancer in oral leukoplakias. The current study used 27 oral leukoplakias with histological evidence of dysplasia. The first group (progressing dysplasia) consisted of 7 oral lesions from patients with later progression to cancer at the same site. The other group (non- progressing dysplasia) consisted of 20 lesions from patients with no occurrence of oral cancer and longitudinal follow up (>7 years). We extracted DNA from Formalin-Fixed Paraffin-Embedded (FFPE) samples and examined chromosomal loci and frequencies of CNVs using Taqman copy number assays. CNV frequently occurred at 3p, 9p, and 13q loci in progressing dysplasia. Our results also indicate that CNV at multiple loci-in contrast to single locus occurrences-is characteristic of progressing dysplasia. This study suggests that genetic abnormalities of the true precancer demonstrate the progression risk which cannot be delineated by current histopathologic diagnosis.

  16. Abnormal visuomotor processing in schizophrenia

    Directory of Open Access Journals (Sweden)

    Siân E. Robson

    2016-01-01

    Full Text Available Subtle disturbances of visual and motor function are known features of schizophrenia and can greatly impact quality of life; however, few studies investigate these abnormalities using simple visuomotor stimuli. In healthy people, electrophysiological data show that beta band oscillations in sensorimotor cortex decrease during movement execution (event-related beta desynchronisation (ERBD, then increase above baseline for a short time after the movement (post-movement beta rebound (PMBR; whilst in visual cortex, gamma oscillations are increased throughout stimulus presentation. In this study, we used a self-paced visuomotor paradigm and magnetoencephalography (MEG to contrast these responses in patients with schizophrenia and control volunteers. We found significant reductions in the peak-to-peak change in amplitude from ERBD to PMBR in schizophrenia compared with controls. This effect was strongest in patients who made fewer movements, whereas beta was not modulated by movement in controls. There was no significant difference in the amplitude of visual gamma between patients and controls. These data demonstrate that clear abnormalities in basic sensorimotor processing in schizophrenia can be observed using a very simple MEG paradigm.

  17. Operator training for the abnormal

    International Nuclear Information System (INIS)

    Marzec, R.J.

    1977-01-01

    Training of nuclear power plant control room operators, on actions to be taken for an abnormal event, has classically been limited to discussion, on-shift and/or during requalification training classes, of symptoms, logical thought processes, systems analysis, and operator experience. The prerequisites for these discussions are a common technical vocabulary, and a minimum basic comprehension of nuclear power plant fundamentals, plant component theory of operation, system configuration, system control philosophy and operating procedures. Nuclear power plant control room operators are not the only personnel who are or should be involved in these discussions. The shift supervisors, operations management, and auxiliary equipment operators require continuing training in abnormal operations, as well. More in-depth training is necessary for shift supervisors and control room operators. The availability of vendor simulators has improved the effectiveness of training efforts for these individuals to some extent by displaying typical situations and plant performance characteristics and by providing a degree of ''hands on'' experience. The evolution of in-depth training with these simulators is reviewed

  18. Characterizing abnormal behavior in a large population of zoo-housed chimpanzees: prevalence and potential influencing factors

    Directory of Open Access Journals (Sweden)

    Sarah L. Jacobson

    2016-07-01

    Full Text Available Abnormal behaviors in captive animals are generally defined as behaviors that are atypical for the species and are often considered to be indicators of poor welfare. Although some abnormal behaviors have been empirically linked to conditions related to elevated stress and compromised welfare in primates, others have little or no evidence on which to base such a relationship. The objective of this study was to investigate a recent claim that abnormal behavior is endemic in the captive population by surveying a broad sample of chimpanzees (Pan troglodytes, while also considering factors associated with the origins of these behaviors. We surveyed animal care staff from 26 accredited zoos to assess the prevalence of abnormal behavior in a large sample of chimpanzees in the United States for which we had information on origin and rearing history. Our results demonstrated that 64% of this sample was reported to engage in some form of abnormal behavior in the past two years and 48% of chimpanzees engaged in abnormal behavior other than coprophagy. Logistic regression models were used to analyze the historical variables that best predicted the occurrence of all abnormal behavior, any abnormal behavior that was not coprophagy, and coprophagy. Rearing had opposing effects on the occurrence of coprophagy and the other abnormal behaviors such that mother-reared individuals were more likely to perform coprophagy, whereas non-mother-reared individuals were more likely to perform other abnormal behaviors. These results support the assertion that coprophagy may be classified separately when assessing abnormal behavior and the welfare of captive chimpanzees. This robust evaluation of the prevalence of abnormal behavior in our sample from the U.S. zoo population also demonstrates the importance of considering the contribution of historical variables to present behavior, in order to better understand the causes of these behaviors and any potential relationship to

  19. Abnormal Event Detection Using Local Sparse Representation

    DEFF Research Database (Denmark)

    Ren, Huamin; Moeslund, Thomas B.

    2014-01-01

    We propose to detect abnormal events via a sparse subspace clustering algorithm. Unlike most existing approaches, which search for optimized normal bases and detect abnormality based on least square error or reconstruction error from the learned normal patterns, we propose an abnormality...... measurement based on the difference between the normal space and local space. Specifically, we provide a reasonable normal bases through repeated K spectral clustering. Then for each testing feature we first use temporal neighbors to form a local space. An abnormal event is found if any abnormal feature...

  20. [Correlation between TORCH infections and abnormal pregnant outcomes].

    Science.gov (United States)

    Zhang, Qian-Qian; Cheng, Jun-Zhen; Wang, Feng-Hui

    2013-04-01

    To understand the correlation between TORCH infections and adverse pregnancy outcomes, so as to provide recommendations for birth defect interventions. The serum samples from 900 pregnant women were tested for TORCH-IgM by capture ELISA. The women with positive results were followed up and the outcomes of their pregnancies were investigated. The total TORCH-IgM positive rate of the pregnant women was 4.11% (37/900). The IgM positive rates of CMV, HSV II , RV and TOX were 2.00% (18/900), 0.78% (7/900), 0.44% (4/900), and 0.89% (8/900) respectively. Thirty-one TORCH-IgM positive pregnant women continued their pregnancies and 20 of them were found abnormal pregnancy outcomes, accounting for 64.52%. TORCH infections are important risk factors responsible for abnormal pregnant outcomes. The screening of TORCH should be performed during pregnancy, and the appropriate interventions can reduce the occurrence of abnormal pregnancy and prevent birth defects.

  1. Left globus pallidus abnormality in never-medicated patients with schizophrenia

    International Nuclear Information System (INIS)

    Early, T.S.; Reiman, E.M.; Raichle, M.E.; Spitznagel, E.L.

    1987-01-01

    Schizophrenia is a severe psychiatric disorder characterized by onset in young adulthood, the occurrence of hallucinations and delusions, and the development of enduring psychosocial disability. The pathophysiology of this disorder remains unknown. Studies of cerebral blood flow and metabolism designed to identify brain abnormalities in schizophrenia have been limited by inadequate methods of anatomical localization and the possibility of persistent medication effects. The authors have now used positron emission tomography and a validated method of anatomical localization in an attempt to identify abnormalities of regional cerebral blood flow in newly diagnosed never-medicated patients with schizophrenia. An exploratory study of 5 patients and 10 normal control subjects identified abnormally high blood flow in the left globus pallidus of patients with schizophrenia. A replication study of 5 additional patients and 10 additional control subjects confirmed this finding. No other abnormalities were found

  2. Abnormal duodenal loop demonstrated by X-ray. Correlation to symptoms and prognosis of dyspepsia

    Energy Technology Data Exchange (ETDEWEB)

    Thommesen, P.; Funch-Jensen, P.

    1986-01-01

    The occurrence of dyspeptic symptoms has previously been correlated with the shape of the duodenal loop in patients with X-ray-negative dyspepsia. An abnormal duodenal loop was associated with a significantly higher incidence of symtoms provoked by meals, vomiting, regurgitations, heartburn, and the irritable bowel syndrome. 89% of these patients (26 patients with a normal duodenal loop and 39 patients with abnormal duodenal loop) were available for a 5-year follow-up study of symptomatic outcome. The incidence of symptoms provoked by meals was still significantly higher in patients with an abnormal duodenal loop, and there was also a significant difference concerning symptomatic outcome. Approximately 75% of the patients with a normal duodenal loop had improved, and 25% had unchanged clinical conditions. Approximately 50% of the patients with an abnormal duodenal loop had improved, and 50% had an unchanged or even deteriorated clinical condition.

  3. First natural occurrence of coesite

    Science.gov (United States)

    Chao, E.C.T.; Shoemaker, E.M.; Madsen, B.M.

    1960-01-01

    Coesite, the high-pressure polymorph of SiO2, hitherto known only as a synthetic compound, is identified as an abundant mineral in sheared Coconino sandstone at Meteor Crater, Arizona. This natural occurrence has important bearing on the recognition of meteorite impact craters in quartz-bearing geologic formations.

  4. Abnormal Returns and Contrarian Strategies

    Directory of Open Access Journals (Sweden)

    Ivana Dall'Agnol

    2003-12-01

    Full Text Available We test the hypothesis that strategies which are long on portfolios of looser stocks and short on portfolios of winner stocks generate abnormal returns in Brazil. This type of evidence for the US stock market was interpreted by The Bondt and Thaler (1985 as reflecting systematic evaluation mistakes caused by investors overreaction to news related to the firm performance. We found evidence of contrarian strategies profitability for horizons from 3 months to 3 years in a sample of stock returns from BOVESPA and SOMA from 1986 to 2000. The strategies are more profitable for shorter horizons. Therefore, there was no trace of the momentum effect found by Jagadeesh and Titman (1993 for the same horizons with US data. There are remaing unexplained positive returns for contrarian strategies after accounting for risk, size, and liquidity. We also found that the strategy profitability is reduced after the Real Plan, which suggests that the Brazilian stock market became more efficient after inflation stabilization.

  5. Climatology of Mountain Wave-Induced Turbulence in the Stratosphere over Central Asia: October-December 1994-2001

    National Research Council Canada - National Science Library

    Eckermann, Stephen

    2002-01-01

    This report summarizes experiments using the Naval Research Laboratory Mountain Wave Forecast Model to construct climatologies of stratospheric turbulence due to mountain wave breaking over central...

  6. Biomass power for rural development. Technical progress report Phase-II. Contractual reporting period October-December 1999

    Energy Technology Data Exchange (ETDEWEB)

    Neuhauser, Edward; The Salix Consortium

    2000-03-23

    The project undertaken by the Salix Consortium is a multi-phased, multi-partner endeavor. Phase 1 focused on initial development and testing of the technology and forging the necessary agreements to demonstrate commercial willow production. The Phase 1 objectives have been successfully completed: preparing design plans for 2 utility pulverized coal boilers for 20 MW of biopower capacity; developing fuel supply plans for the project with a goal of establishing 365 ha (900 ac) of willow; obtaining power production commitments from the power companies for Phase 2; obtaining construction and environmental permits; and developing an experimental strategy for crop production and power generation improvements needed to assure commercial success. The R and D effort also addresses environmental issues pertaining to introduction of the willow energy system.

  7. Radiological assessment report for the Lansdowne property, 105-107 East Stratford Avenue, Lansdowne, Pennsylvania, October-December 1984

    Energy Technology Data Exchange (ETDEWEB)

    Wynveen, R.A.; Smith, W.H.; Sholeen, C.M.; Flynn, K.F.

    1985-09-01

    Areas with elevated levels of radioactivity were found throughout both residences, as well as on the surrounding property. Contamination was also found in the garage behind the 105 East structure. The 105 East residence had substantially more contamination than the 107 East residence, as was expected. The chimneys, particularly the rear chimney, from the 105 East residence had extensive contamination, indicating that contaminated materials may have been burned at the site. The high background radiation emanating from this residence made it difficult to establish the relatively lower levels of contamination in the 107 East residence. The property surrounding the 105 East residence was found to have substantial contamination scattered throughout, with the highest level occurring in the backyard. The soil surface contamination seemed to drop markedly (but not entirely) at the property lines. The property surrounding 107 East was found to be less contaminated, although the background radiation emanating from the adjoining area made it difficult to establish the degree of surface or near-surface contamination from surface surveys. Subsurface investigation of the soil surrounding the structure indicated that radium contamination was widespread and extended to a depth of eight feet at some locations. There was evidence that some of this contamination extended onto adjoining properties and may have been transported off the site via subsurface migration. Additionally, analysis of samples from access points in the residence sewer system effluent established that the system was contaminated. 3 refs., 26 figs., 13 tabs.

  8. Long-term stability of the BDNPF/BDNPA nitroplaticizer system: an MMR analysis. Progress report, October--December 1975

    International Nuclear Information System (INIS)

    Clink, G.L.

    1976-01-01

    NMR analysis of the BDNPF/BDNPA eutectic system reaffirms the molecular integrity of the constituents, the stability of their molar ratios, and the effective retardant effect of the phenyl-beta-napthylamine antioxidant. Additional work on the analysis of the PBX 9501 system is underway at the present time

  9. Geothermal direct-heat utilization assistance. Federal Assistance Program, Quarterly project progress report, October--December 1994

    Energy Technology Data Exchange (ETDEWEB)

    1994-12-31

    The report summarizes activities of the Geo-Heat Center (GHC) at Oregon Institute of Technology for the first quarter of Fiscal Year 1995. It describes contacts with parties during this period related to assistance with geothermal direct heat projects. Areas dealt with include geothermal heat pumps, space heating, greenhouses, aquaculture, resources and equipment. Research is also being conducted on geothermal energy cost evaluation, low-temperature geothermal resource assessment, use of silica waste from the Cerro Prieto geothermal field as construction materials and geothermal heat pumps. Outreach activities include the publication of a quarterly Bulletin on direct heat applications and dissemination of information on low-temperature geothermal resources and utilization.

  10. [Engineering development of advanced coal-fired low-emission boiler systems]. Technical progress report, October--December 1995

    Energy Technology Data Exchange (ETDEWEB)

    Wesnor, J.D.; Bakke, E. [ABB Environmental Systems, Birmingham, AL (United States); Bender, D.J.; Kaminski, R.S. [Raytheon Engineers and Constructors, Inc., Philadelphia, PA (United States)

    1995-12-31

    The overall objective of the Project is the expedited commercialization of advanced coal-fired low-emisssion boiler systems. The primary objectives are: NO{sub x} emissions, lb/million Btu; SO{sub 2} emissions, lb/million Btu; particulate emissions, lb/million Btu; and net plant efficiency, not less than 42%. The secondary objectives are: improved ash disposability; reduced waste generation; and reduced air toxics emissions. Accomplishments to date are summarized for the following tasks: task 1, project planning and management; task 7, component development and optimization; task 8, preliminary POC test facility design; task 9, subsystem test design and plan; task 10, subsystem test unit construction; and task 11, subsystem test operation and evaluation.

  11. Oak Ridge Reservation Federal Facility Agreement for the Environmental Restoration Program. Volume 1, Quarterly report, October--December 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-01-01

    This Oak Ridge Reservation Federal Facility Agreement Quarterly Report for the Environmental Restoration Program was prepared to satisfy requirements for progress reporting on Environmental Restoration Program (ER) activities as specified in the Oak Ridge Reservation Federal Facility Agreement (FFA) established between the US Department of Energy (DOE), the US Environmental Protection Agency, and the Tennessee Department of Environment and Conservation. The reporting period covered in this document is October through December 1995. This work was performed under Work Breakdown Structure 1.4.12.2.3.04 (Activity Data Sheet 8304). Publication of this document meets two FFA milestones. The FFA Quarterly Report meets an FFA milestone defined as 30 days following the end of the applicable reporting period. Appendix A of this report meets the FFA milestone for the Annual Removal Action Report for the period FYs 1991--95. This document provides information about ER Program activities conducted on the Oak Ridge Reservation under the FFA. Specifically, it includes information on milestones scheduled for completion during the reporting period, as well as scheduled for completion during the next reporting period (quarter); accomplishments of the ER Program; concerns related to program work; and scheduled activities for the next quarter. It also provides a listing of the identity and assigned tasks of contractors performing ER Program work under the FFA.

  12. Geothermal direct-heat utilization assistance: Federal assistance program. Quarterly project progress report, October--December 1995

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1996-02-01

    The report summarizes geothermal technical assistance, R&D and technology transfer activities of the Geo-Heat Center at Oregon Institute of Technology for the first quarter of FY-96. It describes 90 contacts with parties during this period related to technical assistance with geothermal direct heat projects. Areas dealt with include geothermal heat pumps, space heating, greenhouses, aquaculture, equipment and resources. Research activities are summarized on low-temperature resource assessment, geothermal district heating system cost evaluation and silica waste utilization project. Outreach activities include the publication of a geothermal direct use Bulletin, dissemination of information, geothermal library, technical papers and seminars, development of a webpage, and progress monitor reports on geothermal resources and utilization.

  13. E-Learning in European Higher Education Institutions: Results of a Mapping Survey Conducted in October-December 2013

    Science.gov (United States)

    Gaebel, Michael; Kupriyanova, Veronika; Morais, Rita; Colucci, Elizabeth

    2014-01-01

    The present study on e-learning intends to contribute to closing a data gap and to stimulate the discussion on the further development of national and European policies on the issue and to support its systematic institutional take-up. It draws upon a survey conducted by the European University Association between October and December 2013. 249…

  14. Oak Ridge Reservation Federal Facility Agreement quarterly report for the Environmental Restoration Program, Volume 1, October--December 1992

    International Nuclear Information System (INIS)

    1993-01-01

    This quarterly progress report satisfies requirements for the Environmental Restoration (ER) Program which are specified in the Oak Ridge Reservation (ORR) Federal Facility Agreement (FFA) established between the US Department of Energy (DOE), the US Environmental Protection Agency (EPA), and the Tennessee Department of Environment and Conservation (TDEC). The reporting period covered is October through December 1992(first quarter of FY 1993). Sections 1.1 and 1.2 provide respectively the milestones scheduled for completion during the reporting period and a list of documents that have been proposed for transmittal during the following quarter but have not been formally approved as FY 1993 commitments. This first section is followed by: significant accomplishments; technical status at Y-12 operable units, Oak Ridge National Laboratory, Oak Ridge K-25 site, Clinch River, Oak Ridge Associated Universities, and technical oversight and technical programs; and response action contractor assignments

  15. Co-firing high sulfur coal with refuse derived fuels. Technical progress report No. 5, [October--December 1995

    Energy Technology Data Exchange (ETDEWEB)

    Pan, Wei-Ping; Riley, J.T.; Lloyd, W.G.

    1995-11-30

    Studies involving the tubular furnace are in the process of identifying the ideal experimental coal-to-refuse derived fuel(RDF) ratio for use in the AFBC system. A series of experiments with this furnace has been performed to determine the possible chemical pathway for formation of chlorinated organic compounds during the combustion of various RDF sources. Phenol and chlorine appear to be likely reactants necessary for the formation of these compounds. The main goal of these experiment is to determine the exact experimental conditions for the formation of chlorinated organic compounds, as well as methods to inhibit their development. Work on the fluidized bed combustor has involved five combustion runs, in which a combustion efficiency of greater than 96% and with a consistent CO{sub 2} concentration of approximately 13% was obtained. Modifications responsible for these improvements include the addition of the underbed fuel feed system and revision of the flue gas sampling system. New methods of determining combustion efficiency and percentage of SO{sub 2} capture using TG techniques to analyze combustion products are being developed. The current outlook using this TGA/FTIR method is very promising, since previously obscured reactions are being studied. the analysis of combustion products is revealing a more complete picture of the combustion process within the AFBC system.

  16. NRC TLD Direct Radiation Monitoring Network. Volume 15, No. 4: Quarterly progress report, October--December 1995

    Energy Technology Data Exchange (ETDEWEB)

    Struckmeyer, R.

    1996-03-01

    This report presents the results of the NRC Direct Radiation Monitoring Network for the fourth quarter of 1995. It provides the ambient radiation levels measured in the vicinity of 75 sites throughout the United States. In addition, it describes the equipment used, monitoring station selection criteria, characterization of the dosimeter response, calibration procedures, statistical methods, intercomparison, and quality assurance program.

  17. Relationship between summer monsoon rainfall and cyclogenesis over Bay of Bengal during post-monsoon (October-December) season

    Digital Repository Service at National Institute of Oceanography (India)

    Sadhuram, Y.; Maneesha, K.

    –Indonesia region (05◦–15◦S; 120◦–160◦E) are useful to predict TNDC during post-monsoon (October– December) season. The influence of ENSO (El-Nino Southern Oscillation) and IOD (Indian Ocean Dipole) on the cyclogenesis over Bay of Bengal were reported earlier...-monsoon (October–December) season for the period, 1984–2013. El-Nino Modoki (Sumesh and Ramesh Kumar 2013) in the cyclogenesis over north Indian Ocean were reported earlier. Li et al. (2015) studied the inter-annual variability of cyclones over Bay of Bengal during...

  18. Institutional MOOC strategies in Europe : status report based on a mapping survey conducted in October - December 2014

    NARCIS (Netherlands)

    Darco Jansen; Robert Schuwer

    2015-01-01

    Massive Open Online Courses (MOOCs) have continued to attract considerable media coverage as governments and universities respond to the open and online education movement. Three years after the MOOCs began its rise, it is clear that the HE institutions in the EU are gaining speed in

  19. E-SMART system for in-situ detection of environmental contaminants. Quarterly technical progress report, October--December 1996

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-01-01

    General Atomics (GA) leads a team of industrial, academic, and government organizations in the development of the Environmental Systems Management, Analysis and Reporting neTwork (E-SMART) for the Defense Advanced Research Project Agency (DARPA), by way of this Technology Reinvestment Project (TRP). E-SMART defines a standard by which networks of smart sensing, sampling, and control devices can interoperate. E-SMART is intended to be an open standard, available to any equipment manufacturer. The user will be provided a standard platform on which a site-specific monitoring plan can be implemented using sensors and actuators from various manufacturers and upgraded as new monitoring devices become commercially available. This project will further develop and advance the E-SMART standardized network protocol to include new sensors, sampling systems, and graphical user interfaces.

  20. Radiological assessment report for the Lansdowne property, 105-107 East Stratford Avenue, Lansdowne, Pennsylvania, October-December 1984

    International Nuclear Information System (INIS)

    Wynveen, R.A.; Smith, W.H.; Sholeen, C.M.; Flynn, K.F.

    1985-09-01

    Areas with elevated levels of radioactivity were found throughout both residences, as well as on the surrounding property. Contamination was also found in the garage behind the 105 East structure. The 105 East residence had substantially more contamination than the 107 East residence, as was expected. The chimneys, particularly the rear chimney, from the 105 East residence had extensive contamination, indicating that contaminated materials may have been burned at the site. The high background radiation emanating from this residence made it difficult to establish the relatively lower levels of contamination in the 107 East residence. The property surrounding the 105 East residence was found to have substantial contamination scattered throughout, with the highest level occurring in the backyard. The soil surface contamination seemed to drop markedly (but not entirely) at the property lines. The property surrounding 107 East was found to be less contaminated, although the background radiation emanating from the adjoining area made it difficult to establish the degree of surface or near-surface contamination from surface surveys. Subsurface investigation of the soil surrounding the structure indicated that radium contamination was widespread and extended to a depth of eight feet at some locations. There was evidence that some of this contamination extended onto adjoining properties and may have been transported off the site via subsurface migration. Additionally, analysis of samples from access points in the residence sewer system effluent established that the system was contaminated. 3 refs., 26 figs., 13 tabs

  1. Field Verification Program for Small Wind Turbines: Quarterly Report for October-December 2000; 4th Quarter, Iss. No.3

    Energy Technology Data Exchange (ETDEWEB)

    Cardinal, J.

    2001-07-03

    This newsletter provides a brief overview of the Field Verification Program for Small Wind Turbines conducted out of the NWTC and a description of current activities. The newsletter also contains case studies of current projects.

  2. Distribution of marine birds on Georges Bank and adjacent waters. Progress report No. 4, October--December 1978

    Energy Technology Data Exchange (ETDEWEB)

    Powers, K.D.

    1979-01-01

    From 27 September to 14 December 1978, MBO observers participated in 8 cruises from the U.S. mid-Atlantic area of the outer continental to western Nova Scotia. The U.S. National Marine Fisheries Service, Federal Republic of Germany, Peoples Republic of Poland, and U.S. Coast Guard were the agencies that provided at-sea platforms. The greater portion of the survey coverage involved the Southern New England--Georges Bank--Gulf of Maine area, where 779.32 km/sup 2/ were sampled. Bird densities were greatest in the Georges Bank area where averages in excess of 30 birds/km/sup 2/ were recorded during the final quarter of 1978. All data collected during 1978 has been submitted to U.S.F.W.S. Migratory Bird and Habitat Research Laboratory in Luurel, MD for punching. Fifteen of 24 MBO cruises conducted in 1978 have been submitted to USFWS--MBHRL for punching and the remaining 9 have been transcribed. Seven of 16 MBO cruises conducted in 1976 have been transcribed.

  3. Licensee contractor and vendor inspection status report. Quarterly report, October-December 1985. Volume 9, No. 4

    International Nuclear Information System (INIS)

    1986-02-01

    This periodical covers the results of inspections performed by the NRCs vendor program branch that have been distribution to the inspected organizations during the period from October 1985 through December 1985

  4. NRC TLD Direct Radiation Monitoring Network. Volume 15, No. 4: Quarterly progress report, October--December 1995

    International Nuclear Information System (INIS)

    Struckmeyer, R.

    1996-03-01

    This report presents the results of the NRC Direct Radiation Monitoring Network for the fourth quarter of 1995. It provides the ambient radiation levels measured in the vicinity of 75 sites throughout the United States. In addition, it describes the equipment used, monitoring station selection criteria, characterization of the dosimeter response, calibration procedures, statistical methods, intercomparison, and quality assurance program

  5. Packaging and transportation occurrence reporting

    International Nuclear Information System (INIS)

    Needels, T.S.

    1996-01-01

    The US Department of Energy (DOE) Order 231.1 calls for the maintenance of a database for all unclassified occurrence reports (ORs). ORS provide DOE with notice of incidents and accidents that endanger the public, workers, or DOE facility operations. To fulfill this policy, the DOE Occurrence Reporting and Processing System (ORPS) was established to require DOE facilities to report and process information concerning such events. The Oak Ridge National Laboratory (ORNL) provides DOE with data and analysis of occurrence related to packaging and transportation (P and T) safety. This program produces annual reports, lessons learned bulletins, and information for the packaging and transportation home page on the Internet. The analysis and reports provided can be used as a tool for oversight and a means for DOE sites to be proactive and anticipate problems through shared knowledge and lessons learned. To illustrate, some observable trends based on 3 years of the program are given. In summary, this program shows potential problem areas that need correcting, and possible breakdowns of safety

  6. Research progress of the relationship between abnormal vestibular reflexes and adolescent idiopathic scoliosis

    Directory of Open Access Journals (Sweden)

    Yi-Lin Yang

    2017-01-01

    Full Text Available Adolescent idiopathic scoliosis (AIS is an agnogenic structural scoliosis occurring in adolescence, and the main diagnostic criteria is coronal Cobb angle >10°in total spine X-ray. Studies have shown that AIS may be associated with abnormal postural reflexes, vestibular system is an important component of postural reflexes and its mechanism in the occurrence and development of scoliosis has received wide attention in recent years. In the study, the research progress on the role of abnormal vestibular reflexes in the pathogenesis of AIS was mainly introduced to help the clinicians better understand the pathogenesis of AIS and provide new ideas for AIS study.

  7. Hemostatic abnormalities in liver cirrhosis

    Directory of Open Access Journals (Sweden)

    Kendal YALÇIN

    2009-06-01

    Full Text Available In this study, 44 patients with liver cirrhosis were investigated for hemostatic parameters. Patients with spontaneous bacterial peritonitis, hepatocellular carcinoma, hepatorenal syndrome and cholestatic liver diseases were excluded. Patients were classified by Child-Pugh criterion and according to this 4 patients were in Class A, 20 in Class B and 20 in C. Regarding to these results, it was aimed to investigate the haematological disturbances in liver cirrhotic patients.In the result there was a correlation between activated partial thromboplastin time, serum iron, ferritin, transferrin, haptoglobin and Child-Pugh classification. Besides there was no correlation between prothrombin time, factor 8 and 9, protein C and S, anti-thrombin 3, fibrinogen, fibrin degradation products, serum iron binding capacity, hemoglobin, leukocyte, mean corpuscular volume and Child-Pugh classification.There were significant difference, in terms of AST, ferritin, haptoglobulin, sex and presence of ascites between groups (p0.05. In the summary, we have found correlation between hemostatic abnormalities and disease activity and clinical prognosis in patients with liver cirrhosis which is important in the management of these patients. This is also important for identification of liver transplant candidiates earlier.

  8. Biochemical abnormalities in Pearson syndrome.

    Science.gov (United States)

    Crippa, Beatrice Letizia; Leon, Eyby; Calhoun, Amy; Lowichik, Amy; Pasquali, Marzia; Longo, Nicola

    2015-03-01

    Pearson marrow-pancreas syndrome is a multisystem mitochondrial disorder characterized by bone marrow failure and pancreatic insufficiency. Children who survive the severe bone marrow dysfunction in childhood develop Kearns-Sayre syndrome later in life. Here we report on four new cases with this condition and define their biochemical abnormalities. Three out of four patients presented with failure to thrive, with most of them having normal development and head size. All patients had evidence of bone marrow involvement that spontaneously improved in three out of four patients. Unique findings in our patients were acute pancreatitis (one out of four), renal Fanconi syndrome (present in all patients, but symptomatic only in one), and an unusual organic aciduria with 3-hydroxyisobutyric aciduria in one patient. Biochemical analysis indicated low levels of plasma citrulline and arginine, despite low-normal ammonia levels. Regression analysis indicated a significant correlation between each intermediate of the urea cycle and the next, except between ornithine and citrulline. This suggested that the reaction catalyzed by ornithine transcarbamylase (that converts ornithine to citrulline) might not be very efficient in patients with Pearson syndrome. In view of low-normal ammonia levels, we hypothesize that ammonia and carbamylphosphate could be diverted from the urea cycle to the synthesis of nucleotides in patients with Pearson syndrome and possibly other mitochondrial disorders. © 2015 Wiley Periodicals, Inc.

  9. Evaluation of Chromosomal Abnormalities and Common ...

    African Journals Online (AJOL)

    Evaluation of Chromosomal Abnormalities and Common Trombophilic Mutations in Cases with Recurrent Miscarriage. Ahmet Karatas, Recep Eroz, Mustafa Albayrak, Tulay Ozlu, Bulent Cakmak, Fatih Keskin ...

  10. Study for the design method of multi-agent diagnostic system to improve diagnostic performance for similar abnormality

    International Nuclear Information System (INIS)

    Minowa, Hirotsugu; Gofuku, Akio

    2014-01-01

    Accidents on industrial plants cause large loss on human, economic, social credibility. In recent, studies of diagnostic methods using techniques of machine learning such as support vector machine is expected to detect the occurrence of abnormality in a plant early and correctly. There were reported that these diagnostic machines has high accuracy to diagnose the operating state of industrial plant under mono abnormality occurrence. But the each diagnostic machine on the multi-agent diagnostic system may misdiagnose similar abnormalities as a same abnormality if abnormalities to diagnose increases. That causes that a single diagnostic machine may show higher diagnostic performance than one of multi-agent diagnostic system because decision-making considering with misdiagnosis is difficult. Therefore, we study the design method for multi-agent diagnostic system to diagnose similar abnormality correctly. This method aimed to realize automatic generation of diagnostic system where the generation process and location of diagnostic machines are optimized to diagnose correctly the similar abnormalities which are evaluated from the similarity of process signals by statistical method. This paper explains our design method and reports the result evaluated our method applied to the process data of the fast-breeder reactor Monju

  11. Repolarization abnormalities in the newborn.

    Science.gov (United States)

    Schwartz, Peter J; Stramba-Badiale, Marco

    2010-06-01

    The recognition of ventricular repolarization abnormalities in the newborn carries several and significant implications, because it calls attention to the possibility of dealing with an infant affected by the long QT syndrome (LQTS). This article provides key elements for the correct measurement of the QT interval in newborns and succinctly reviews some aspects of the disease. It gives normative values on the QT interval distribution in the first month of life based on a prospective study in more than 44,000 infants. It shows the probability, based on the QTc observed in two recordings, to find disease-causing mutations. The data indicate clearly that widespread electrocardiographic screening in the newborn allows early identification of most, if not all, the infants affected by LQTS with marked QT prolongation and thus of those at higher risk for life-threatening arrhythmias and sudden death. Through the affected infants, it becomes possible to identify the family members affected by LQTS, including the "silent mutation carriers"; our study shows that disease-causing mutations are found in 51% of the family members. Because early recognition leads to the implementation of effective preventive strategies, it follows that electrocardiographic screening will avoid preventable deaths either in the first year of life when they are usually labeled as "sudden infant death syndrome" or later in life. The case is made for medicolegal implications whenever neonatologists and pediatricians fail to inform the parents of a newborn child of the prevalence of LQTS (one in 2000), of the effectiveness of existing therapies, and of the diagnosis with a simple electrocardiogram.

  12. Localized Hotspots Drive Continental Geography of Abnormal Amphibians on U.S. Wildlife Refuges

    Science.gov (United States)

    Reeves, Mari K.; Medley, Kimberly A.; Pinkney, Alfred E.; Holyoak, Marcel; Johnson, Pieter T. J.; Lannoo, Michael J.

    2013-01-01

    Amphibians with missing, misshapen, and extra limbs have garnered public and scientific attention for two decades, yet the extent of the phenomenon remains poorly understood. Despite progress in identifying the causes of abnormalities in some regions, a lack of knowledge about their broader spatial distribution and temporal dynamics has hindered efforts to understand their implications for amphibian population declines and environmental quality. To address this data gap, we conducted a nationwide, 10-year assessment of 62,947 amphibians on U.S. National Wildlife Refuges. Analysis of a core dataset of 48,081 individuals revealed that consistent with expected background frequencies, an average of 2% were abnormal, but abnormalities exhibited marked spatial variation with a maximum prevalence of 40%. Variance partitioning analysis demonstrated that factors associated with space (rather than species or year sampled) captured 97% of the variation in abnormalities, and the amount of partitioned variance decreased with increasing spatial scale (from site to refuge to region). Consistent with this, abnormalities occurred in local to regional hotspots, clustering at scales of tens to hundreds of kilometers. We detected such hotspot clusters of high-abnormality sites in the Mississippi River Valley, California, and Alaska. Abnormality frequency was more variable within than outside of hotspot clusters. This is consistent with dynamic phenomena such as disturbance or natural enemies (pathogens or predators), whereas similarity of abnormality frequencies at scales of tens to hundreds of kilometers suggests involvement of factors that are spatially consistent at a regional scale. Our characterization of the spatial and temporal variation inherent in continent-wide amphibian abnormalities demonstrates the disproportionate contribution of local factors in predicting hotspots, and the episodic nature of their occurrence. PMID:24260103

  13. Inguinal Abnormalities in Male Patients with Acetabular Fractures Treated Using an Ilioinguinal Exposure

    Directory of Open Access Journals (Sweden)

    Reza Firoozabadi

    2015-09-01

    Full Text Available Purpose: Surgeons performing an ilioinguinal exposure for acetabular fracture surgery need to be aware of aberrant findings such as inguinal hernias and spermatic cord lesions. The purpose of this study is to report these occurrences in a clinical series of adult males undergoing acetabular fracture fixation and a series of adult male cadavers. The secondary aim is to characterize these abnormalities to aid surgeons in detecting these abnormalities preoperatively and coordinating a surgical plan with a general surgeon.Methods: Clinical study- Retrospective review of treated acetabular fractures through an ilioinguinal approach. Incidence of inguinal canal and spermatic cord abnormalities requiring general surgery consultation were identified. Corresponding CT scans were reviewed and radiographic characteristics of the spermatic cord abnormalities and/or hernias were noted.Cadaveric study- 18 male cadavers dissected bilaterally using an ilioinguinal exposure. The inguinal canal and the contents of the spermatic cord were identified and characterized.Results: Clinical Study- 5.7% (5/87 of patients had spermatic cord lesion and/or inguinal hernia requiring general surgical intervention. Preoperative pelvic CT scan review identified abnormalities noted intraoperatively in four of the five patients. Cord lipomas visualized as enlargements of the spermatic cord with homogeneous density. Hernias visualized as enlarged spermatic cords with heterogeneous density. Cadaver Study- 31% (11/36 of cadavers studied had spermatic cord and/or inguinal canal abnormalities. Average cord diameter in those with abnormalities was 24.9 mm (15-28 compared to 16 mm (11-22 in normal cords, which was statistically significant.Conclusion: The clinical and cadaveric findings emphasize the importance of understanding inguinal abnormalities and the value of detecting them preoperatively. The preoperative pelvic CT scans were highly sensitive in detecting inguinal abnormalities.

  14. Localized hotspots drive continental geography of abnormal amphibians on U.S. wildlife refuges.

    Science.gov (United States)

    Reeves, Mari K; Medley, Kimberly A; Pinkney, Alfred E; Holyoak, Marcel; Johnson, Pieter T J; Lannoo, Michael J

    2013-01-01

    Amphibians with missing, misshapen, and extra limbs have garnered public and scientific attention for two decades, yet the extent of the phenomenon remains poorly understood. Despite progress in identifying the causes of abnormalities in some regions, a lack of knowledge about their broader spatial distribution and temporal dynamics has hindered efforts to understand their implications for amphibian population declines and environmental quality. To address this data gap, we conducted a nationwide, 10-year assessment of 62,947 amphibians on U.S. National Wildlife Refuges. Analysis of a core dataset of 48,081 individuals revealed that consistent with expected background frequencies, an average of 2% were abnormal, but abnormalities exhibited marked spatial variation with a maximum prevalence of 40%. Variance partitioning analysis demonstrated that factors associated with space (rather than species or year sampled) captured 97% of the variation in abnormalities, and the amount of partitioned variance decreased with increasing spatial scale (from site to refuge to region). Consistent with this, abnormalities occurred in local to regional hotspots, clustering at scales of tens to hundreds of kilometers. We detected such hotspot clusters of high-abnormality sites in the Mississippi River Valley, California, and Alaska. Abnormality frequency was more variable within than outside of hotspot clusters. This is consistent with dynamic phenomena such as disturbance or natural enemies (pathogens or predators), whereas similarity of abnormality frequencies at scales of tens to hundreds of kilometers suggests involvement of factors that are spatially consistent at a regional scale. Our characterization of the spatial and temporal variation inherent in continent-wide amphibian abnormalities demonstrates the disproportionate contribution of local factors in predicting hotspots, and the episodic nature of their occurrence.

  15. Inguinal Abnormalities in Male Patients with Acetabular Fractures Treated Using an Ilioinguinal Exposure

    Directory of Open Access Journals (Sweden)

    Reza Firoozabadi

    2015-10-01

    Full Text Available Purpose: Surgeons performing an ilioinguinal exposure for acetabular fracture surgery need to be aware of aberrant findings such as inguinal hernias and spermatic cord lesions. The purpose of this study is to report these occurrences in a clinical series of adult males undergoing acetabular fracture fixation and a series of adult male cadavers. The secondary aim is to characterize these abnormalities to aid surgeons in detecting these abnormalities preoperatively and coordinating a surgical plan with a general surgeon.Methods: Clinical study- Retrospective review of treated acetabular fractures through an ilioinguinal approach. Incidence of inguinal canal and spermatic cord abnormalities requiring general surgery consultation were identified. Corresponding CT scans were reviewed and radiographic characteristics of the spermatic cord abnormalities and/or hernias were noted.Cadaveric study- 18 male cadavers dissected bilaterally using an ilioinguinal exposure. The inguinal canal and the contents of the spermatic cord were identified and characterized.Results: Clinical Study- 5.7% (5/87 of patients had spermatic cord lesion and/or inguinal hernia requiring general surgical intervention. Preoperative pelvic CT scan review identified abnormalities noted intraoperatively in four of the five patients. Cord lipomas visualized as enlargements of the spermatic cord with homogeneous density. Hernias visualized as enlarged spermatic cords with heterogeneous density. Cadaver Study- 31% (11/36 of cadavers studied had spermatic cord and/or inguinal canal abnormalities. Average cord diameter in those with abnormalities was 24.9 mm (15-28 compared to 16 mm (11-22 in normal cords, which was statistically significant.Conclusion: The clinical and cadaveric findings emphasize the importance of understanding inguinal abnormalities and the value of detecting them preoperatively. The preoperative pelvic CT scans were highly sensitive in detecting inguinal abnormalities.

  16. Colorado quartz: occurrence and discovery

    Science.gov (United States)

    Kile, D.E.; Modreski, P.J.; Kile, D.L.

    1991-01-01

    The many varieties and associations of quartz found throughout the state rank it as one of the premier worldwide localities for that species. This paper briefly outlines the historical importance of the mineral, the mining history and the geological setting before discussing the varieties of quartz present, its crystallography and the geological enviroments in which it is found. The latter include volcanic rocks and near surface igneous rocks; pegmatites; metamorphic and plutonic rocks; hydrothermal veins; skarns and sedimentary deposits. Details of the localities and mode of occurrence of smoky quartz, amethyst, milky quartz, rock crystal, rose quartz, citrine, agate and jasper are then given. -S.J.Stone

  17. Occurrence reporting and processing of operations information

    International Nuclear Information System (INIS)

    1997-01-01

    DOE O 232.1A, Occurrence Reporting and Processing of Operations Information, and 10 CFR 830.350, Occurrence Reporting and Processing of Operations Information (when it becomes effective), along with this manual, set forth occurrence reporting requirements for Department of Energy (DOE) Departmental Elements and contractors responsible for the management and operation of DOE-owned and -leased facilities. These requirements include categorization of occurrences related to safety, security, environment, health, or operations (''Reportable Occurrences''); DOE notification of these occurrences; and the development and submission of documented follow-up reports. This Manual provides detailed information for categorizing and reporting occurrences at DOE facilities. Information gathered by the Occurrence Reporting and processing System is used for analysis of the Department's performance in environmental protection, safeguards and security, and safety and health of its workers and the public. This information is also used to develop lessons learned and document events that significantly impact DOE operations

  18. Occurrence reporting and processing of operations information

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-07-21

    DOE O 232.1A, Occurrence Reporting and Processing of Operations Information, and 10 CFR 830.350, Occurrence Reporting and Processing of Operations Information (when it becomes effective), along with this manual, set forth occurrence reporting requirements for Department of Energy (DOE) Departmental Elements and contractors responsible for the management and operation of DOE-owned and -leased facilities. These requirements include categorization of occurrences related to safety, security, environment, health, or operations (``Reportable Occurrences``); DOE notification of these occurrences; and the development and submission of documented follow-up reports. This Manual provides detailed information for categorizing and reporting occurrences at DOE facilities. Information gathered by the Occurrence Reporting and processing System is used for analysis of the Department`s performance in environmental protection, safeguards and security, and safety and health of its workers and the public. This information is also used to develop lessons learned and document events that significantly impact DOE operations.

  19. Nail abnormalities in patients with vitiligo.

    Science.gov (United States)

    Topal, Ilteris Oguz; Gungor, Sule; Kocaturk, Ozgur Emek; Duman, Hatice; Durmuscan, Mustafa

    2016-01-01

    Vitiligo is an acquired pigmentary skin disorder affecting 0.1-4% of the general population. The nails may be affected in patients with an autoimmune disease such as psoriasis, and in those with alopecia areata. It has been suggested that nail abnormalities should be apparent in vitiligo patients. We sought to document the frequency and clinical presentation of nail abnormalities in vitiligo patients compared to healthy volunteers. We also examined the correlations between nail abnormalities and various clinical parameters. This study included 100 vitiligo patients and 100 healthy subjects. Full medical histories were collected from the subjects, who underwent thorough general and nail examinations. All nail changes were noted. In the event of clinical suspicion of a fungal infection, additional mycological investigations were performed. Nail abnormalities were more prevalent in the patients (78%) than in the controls (55%) (p=0.001). Longitudinal ridging was the most common finding (42%), followed by (in descending order): leukonychia, an absent lunula, onycholysis, nail bed pallor, onychomycosis, splinter hemorrhage and nail plate thinning. The frequency of longitudinal ridging was significantly higher in patients than in controls (pNail abnormalities were more prevalent in vitiligo patients than in controls. Systematic examination of the nails in such patients is useful because nail abnormalities are frequent. However, the causes of such abnormalities require further study. Longitudinal ridging and leukonychia were the most common abnormalities observed in this study.

  20. Effects of theophylline administration and intracranial abnormalities ...

    African Journals Online (AJOL)

    Objective: To determine effects of theophylline therapy for recurrent apnoea of prematurity and abnormal early (within the first 24 hours) cranial ultrasound abnormalities on protective neck turning response in preterm infants. Design: A cross sectional descriptive study. Setting: The Neonatal Unit of Hammersmith Hospital, ...

  1. Prevalence of biochemical and immunological abnormalities in ...

    African Journals Online (AJOL)

    Tile prevalence of biochemical and immunological abnormalities was studied in a group of 256 patients with rheumatoid arthritis (104 coloureds, 100 whites and 52 blacks). The most common biochemical abnormalities detected were a reduction in the serum creatinine value (43,4%), raised globulins (39,7%), raised serum ...

  2. First Trimester Ultrasound Screening for Congenital Abnormalities ...

    African Journals Online (AJOL)

    approach used, especially with the introduction of first trimester ultrasound as a reliable screening method. Objective: To give a comprehensive review of the basis for first trimester ultrasound screening for congenital abnormalities, it's utilization in the prenatal screening for chromosomal, structural and genetic abnormalities ...

  3. An Abnormal Psychology Community Based Interview Assignment

    Science.gov (United States)

    White, Geoffry D.

    1977-01-01

    A course option in abnormal psychology involves students in interviewing and observing the activities of individuals in the off-campus community who are concerned with some aspect of abnormal psychology. The technique generates student interest in the field when they interview people about topics such as drug abuse, transsexualism, and abuse of…

  4. Timing of Intravenous Immunoglobulin Treatment and Risk of Coronary Artery Abnormalities in Children with Kawasaki Disease

    Directory of Open Access Journals (Sweden)

    Aswine K. Bal

    2014-10-01

    Conclusion: The results of this study suggest that although IVIG treatment within 10 days is important to minimize development of cardiac pathology, neither occurrence of CA lesions in IVIG-treated children nor the time frame for resolution of established CA abnormalities was associated with the timing of IVIG administration. Age 40 mm/hour predict a delay in resolution of CA lesions among children with KD.

  5. Overview of Epidemiology, Genetics, Birth Defects, and Chromosome Abnormalities Associated With CDH

    Science.gov (United States)

    Pober, Barbara R.

    2010-01-01

    Congenital diaphragmatic hernia (CDH) is a common and well-studied birth defect. The etiology of most cases remains unknown but increasing evidence points to genetic causation. The data supporting genetic etiologies which are detailed below include the association of CDH with recurring chromosome abnormalities, the existence of CDH-multiplex families, and the co-occurrence of CDH with additional congenital malformations. PMID:17436298

  6. Overview of epidemiology, genetics, birth defects, and chromosome abnormalities associated with CDH.

    Science.gov (United States)

    Pober, Barbara R

    2007-05-15

    Congenital diaphragmatic hernia (CDH) is a common and well-studied birth defect. The etiology of most cases remains unknown but increasing evidence points to genetic causation. The data supporting genetic etiologies which are detailed below include the association of CDH with recurring chromosome abnormalities, the existence of CDH-multiplex families, and the co-occurrence of CDH with additional congenital malformations. (c) 2007 Wiley-Liss, Inc.

  7. Prevalence of vaginal candidiasis among pregnant women with abnormal vaginal discharge in Maiduguri.

    Science.gov (United States)

    Ibrahim, S M; Bukar, M; Mohammed, Y; Mohammed, B; Yahaya, M; Audu, B M; Ibrahim, H M; Ibrahim, H A

    2013-01-01

    Pregnancy represents a risk factor in the occurrence of vaginal candidiasis. To determine the prevalence and clinical features associated with abnormal vaginal discharge and C. albicans infection in pregnant women. High vaginal swab samples and data on epidemiological characteristics were collected from 400 pregnant women with complaints of abnormal vaginal discharge at booking clinic of University of Maiduguri Teaching Hospital. The data was analysed using SPSS 16.0 statistical software. The prevalence of abnormal vaginal discharge in pregnancy was 31.5%. The frequency of abnormal vaginal discharge was 183 (45.8%) among those aged 20-24 years, 291 (72.8%) in multipara, 223 (55.8%) in those with Primary education and 293 (73.2%) in unemployed. Vulval pruritus 300 (75.0%) was significantly related to abnormal vaginal discharge (P vaginal discharge in pregnancy was high in this study and C. albicans was the commonest cause. It is recommended that a pregnant woman complaining of abnormal vaginal discharge be assessed and Laboratory diagnosis done in order to give appropriate treatment.

  8. Chromosomal abnormalities in patients with sperm disorders

    Directory of Open Access Journals (Sweden)

    L. Y. Pylyp

    2013-02-01

    Full Text Available Chromosomal abnormalities are among the most common genetic causes of spermatogenic disruptions. Carriers of chromosomal abnormalities are at increased risk of infertility, miscarriage or birth of a child with unbalanced karyotype due to the production of unbalanced gametes. The natural selection against chromosomally abnormal sperm usually prevents fertilization with sperm barring in cases of serious chromosomal abnormalities. However, assisted reproductive technologies in general and intracytoplasmic sperm injection in particular, enable the transmission of chromosomal abnormalities to the progeny. Therefore, cytogenetic studies are important in patients with male factor infertility before assisted reproduction treatment. The purpose of the current study was to investigate the types and frequencies of chromosomal abnormalities in 724 patients with infertility and to estimate the risk of chromosomal abnormalities detection in subgroups of patients depending on the severity of spermatogenic disruption, aiming at identifying groups of patients in need of cytogenetic studies. Karyotype analysis was performed in 724 blood samples of men attending infertility clinic. Chromosomal preparation was performed by standard techniques. At least 20 GTG-banded metaphase plates with the resolution from 450 to 750 bands per haploid set were analysed in each case. When chromosomal mosaicism was suspected, this number was increased to 50. Abnormal karyotypes were observed in 48 (6.6% patients, including 67% of autosomal abnormalities and 33% of gonosomal abnormalities. Autosomal abnormalities were represented by structural rearrangements. Reciprocal translocations were the most common type of structural chromosomal abnormalities in the studied group, detected with the frequency of 2.6% (n = 19, followed by Robertsonian translocation, observed with the frequency of 1.2% (n = 9. The frequency of inversions was 0.6% (n = 4. Gonosomal abnormalities included 14 cases

  9. Method and system for determining precursors of health abnormalities from processing medical records

    Energy Technology Data Exchange (ETDEWEB)

    None, None

    2013-06-25

    Medical reports are converted to document vectors in computing apparatus and sampled by applying a maximum variation sampling function including a fitness function to the document vectors to reduce a number of medical records being processed and to increase the diversity of the medical records being processed. Linguistic phrases are extracted from the medical records and converted to s-grams. A Haar wavelet function is applied to the s-grams over the preselected time interval; and the coefficient results of the Haar wavelet function are examined for patterns representing the likelihood of health abnormalities. This confirms certain s-grams as precursors of the health abnormality and a parameter can be calculated in relation to the occurrence of such a health abnormality.

  10. Congenital abnormalities and indicators of germinal mutations in the vicinity of the Paks nuclear plant, Hungary.

    Science.gov (United States)

    Siffel, C; Otos, M; Czeizel, A E

    1996-05-01

    The objective of the study was to check the occurrence of phenotypic manifestations of germinal mutations in children born within a 30 km radius of the Paks nuclear power plant, Hungary. The study took the form of a comparative analysis between observed and expected rates based on the Hungarian baseline rates, as well as between children born before and after the operation of the nuclear plant. Data were taken from the database of the Hungarian Congenital Abnormality Registry completed by active search in the study region, and comprised 26 893 children born between 1980 and 1992 in the 55 settlements of the study region. The results were presented as overall figures as well as being grouped by different congenital abnormalities, in addition to the so-called indicators of germinal mutations: sentinel anomalies, Down syndrome and unidentified multiple congenital abnormalities. The observed occurrence of all but one group of congenital abnormalities corresponded to the expected rate, as did the three groups of indicator conditions. Of the 55 settlements, eight had spatial clusters; however, these could be explained by overdiagnosis or chance. There was no significant increase in the variables studied after the operation of the nuclear plant. We conclude that the slightly elevated radiation background (0.2-0.4 microSv/year) due to the operation of the nuclear plant studied does not affect germinal and somatic mutations in children.

  11. Human plague occurrences in Africa

    DEFF Research Database (Denmark)

    Neerinckx, Simon; Bertherat, Eric; Leirs, Herwig

    2010-01-01

    Plague remains a public health concern worldwide, but particularly in Africa. Despite the long-standing history of human plague, it is difficult to get a historical and recent overview of the general situation. We searched and screened available information sources on human plague occurrences...... in African countries and compiled information on when, where and how many cases occurred in a centralised database. We found records that plague was probably already present before the third pandemic and that hundreds of thousands of human infections have been reported in 26 countries since 1877...... Africa and Madagascar. We show that public health concerns regarding the current plague situation are justified and that the disease should not be neglected, despite the sometimes questionability of the numbers of cases. We conclude that improving plague surveillance strategies is absolutely necessary...

  12. Numerically abnormal chromosome constitutions in humans

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1993-12-31

    Chapter 24, discusses numerically abnormal chromosome constitutions in humans. This involves abnormalities of human chromosome number, including polyploidy (when the number of sets of chromosomes increases) and aneuploidy (when the number of individual normal chromosomes changes). Chapter sections discuss the following chromosomal abnormalities: human triploids, imprinting and uniparental disomy, human tetraploids, hydatidiform moles, anomalies caused by chromosomal imbalance, 13 trisomy (D{sub 1} trisomy, Patau syndrome), 21 trisomy (Down syndrome), 18 trisomy syndrome (Edwards syndrome), other autosomal aneuploidy syndromes, and spontaneous abortions. The chapter concludes with remarks on the nonrandom participation of chromosomes in trisomy. 69 refs., 3 figs., 4 tabs.

  13. Prediction of heart abnormality using MLP network

    Science.gov (United States)

    Hashim, Fakroul Ridzuan; Januar, Yulni; Mat, Muhammad Hadzren; Rizman, Zairi Ismael; Awang, Mat Kamil

    2018-02-01

    Heart abnormality does not choose gender, age and races when it strikes. With no warning signs or symptoms, it can result to a sudden death of the patient. Generally, heart's irregular electrical activity is defined as heart abnormality. Via implementation of Multilayer Perceptron (MLP) network, this paper tries to develop a program that allows the detection of heart abnormality activity. Utilizing several training algorithms with Purelin activation function, an amount of heartbeat signals received through the electrocardiogram (ECG) will be employed to condition the MLP network.

  14. Annotated bibliography of safety-related occurrences in nuclear power plans as reported in 1974

    International Nuclear Information System (INIS)

    Scott, R.L.; Gallaher, R.B.

    1975-05-01

    All abnormal occurrences at nuclear power plants reported in 1974 are reviewed and summarized. This bibliography covers the individual reports on each of the 1421 abnormal occurrences reported to the U. S. Nuclear Regulatory Commission, as well as some 455 other documents pertaining to these and other events of note. The review is intended to provide insight as to where additional effort can be expended to improve operations in nuclear power plants. The individual reports, abstracted by the Nuclear Safety Information Center, concern incidents and failures, design or construction deficiencies, and noncompliance citations for license violations. A bibliography is included which contains 100-word abstracts of each incident. For convenience, the bibliography is organized according to type of facility as follows: boiling-water reactors; pressurized-water reactors; non-water-cooled power reactors; and reactors, general. Key-word and permuted-title indexes are provided for each section. (U.S.)

  15. [Dental abnormalities after treatment for childhood cancer].

    Science.gov (United States)

    Mladosievičová, B; Jurkovič, R; Izakovičová Hollá, L

    2015-01-01

    Childhood cancer therapy often increases the risk of dental complications, such as tooth and roots agenesis, microdontia, abnormal development of tooth enamel, increased risk of cavity and other abnormalities. In a comparison with other late adverse effects of chemotherapy, radiotherapy and hematopoietic stem cell transplantion, a relative small number of clinical stud-ies observing patients for more than two years after completion of anticancer treatment was published. In this article, we review the incidence of dental abnormalities caused by commonly used anticancer treatment modalities as well as discuss their risk factors. Early identification of high-risk patients, early detection and management of dental abnormalities and better education of patients or their guardians, may have an impact on quality of life of cancer survivors.

  16. On two abnormal sharks from Gujarat

    Digital Repository Service at National Institute of Oceanography (India)

    Gopalan, U.K.

    The description of the two abnormal sharks, Carchariaswalbeehmi and Eulamia dussumieri collected from Gujarat, India, is given Of these C walbeehmi was double-headed The other shark E dussumieri had thumb snouted albino...

  17. Video Traffic Analysis for Abnormal Event Detection

    Science.gov (United States)

    2010-01-01

    We propose the use of video imaging sensors for the detection and classification of abnormal events to be used primarily for mitigation of traffic congestion. Successful detection of such events will allow for new road guidelines; for rapid deploymen...

  18. Low-set ears and pinna abnormalities

    Science.gov (United States)

    ... because they do not affect hearing. However, sometimes cosmetic surgery is recommended. Skin tags may be tied off, ... 5 years old. More severe abnormalities may require surgery for cosmetic reasons as well as for function. Surgery to ...

  19. Errata :Chromosomal Abnormalities in Couples with Recurrent ...

    African Journals Online (AJOL)

    Chromosomal Abnormalities in Couples with Recurrent Abortions in Lagos, Nigeria. Akinde OR, Daramola A O, Taiwo I A, Afolayan M O and Akinsola Af. Sonographic Mammary Gland Density Pattern in Women in Selected ommunities of Southern Nigeria.

  20. Video traffic analysis for abnormal event detection.

    Science.gov (United States)

    2010-01-01

    We propose the use of video imaging sensors for the detection and classification of abnormal events to : be used primarily for mitigation of traffic congestion. Successful detection of such events will allow for : new road guidelines; for rapid deplo...

  1. Prevalence of asymptomatic urinary abnormalities among adolescents

    Directory of Open Access Journals (Sweden)

    Mohamed Fouad

    2016-01-01

    Full Text Available To determine the prevalence of asymptomatic urinary abnormalities in adolescents, first morning clean mid-stream urine specimens were obtained from 2500 individuals and examined by dipstick and light microscopy. Adolescents with abnormal screening results were reexamined after two weeks and those who had abnormal results twice were subjected to systemic clinical examination and further clinical and laboratory investigations. Eight hundred and three (32.1% individuals had urinary abnormalities at the first screening, which significantly decreased to 345 (13.8% at the second screening, (P <0.001. Hematuria was the most common urinary abnormalities detected in 245 (9.8% adolescents who had persistent urine abnormalities; 228 (9.1% individuals had non glomerular hematuria. The hematuria was isolated in 150 (6% individuals, combined with leukocyturia in 83 (3.3% individuals, and combined with proteinuria in 12 (0.5% individuals. Leukocyturia was detected in 150 (6% of all studied adolescents; it was isolated in 39 (1.6% individuals and combined with proteinuria in 28 (1.1% of them. Asymp- tomatic bacteriuria was detected in 23 (0.9% of all studied adolescents; all the cases were females. Proteinuria was detected in 65 (2.6% of all the studied adolescents; 45 (1.8% indivi- duals had <0.5 g/day and twenty (0.8% individuals had 0.5-3 g/day. Asymptomatic urinary abnormalities were more common in males than females and adolescents from rural than urban areas (P <0.01 and (P <0.001, respectively. The present study found a high prevalence of asymptomatic urinary abnormalities among adolescents in our population.

  2. Abnormal ''Contamination' Levels On Garden Appliances

    International Nuclear Information System (INIS)

    German, U.; Levinson, S.; Elmelech, V.; Pelled, O.; Tshuva, A.; Laichter, Y.

    1999-01-01

    During routine contamination checks we encountered an abnormal high level of Alpha and Beta emitting radioisotopes on working gloves of employees of the gardening department. It came out that the source was due to ''contamination'' levels on steering wheels of some gardening machines. In order to ensure that no real contamination of these workers was involved , a series of checks was started to identity the source of the abnormal levels found during monitoring

  3. Normal and Abnormal Behavior in Early Childhood

    OpenAIRE

    Spinner, Miriam R.

    1981-01-01

    Evaluation of normal and abnormal behavior in the period to three years of age involves many variables. Parental attitudes, determined by many factors such as previous childrearing experience, the bonding process, parental psychological status and parental temperament, often influence the labeling of behavior as normal or abnormal. This article describes the forms of crying, sleep and wakefulness, and affective responses from infancy to three years of age.

  4. Implications of white striping and spaghetti meat abnormalities on meat quality and histological features in broilers.

    Science.gov (United States)

    Baldi, G; Soglia, F; Mazzoni, M; Sirri, F; Canonico, L; Babini, E; Laghi, L; Cavani, C; Petracci, M

    2018-01-01

    samples, which consequently led to a reduction of the water holding capacity of meat. As for functional properties, abnormal fillets exhibited a lower protein solubility and higher ultimate pH values on both the superficial and deep sections. Although abnormal fillets exhibited higher yellowness values, no relevant effect on meat color was observed. The occurrence of WS and SM abnormalities led to increased carbonylation levels and more intense proteolytic processes. Overall, muscle abnormalities mainly affect the superficial layer of P. major muscle and particularly the occurrence of SM myopathy seems to implicate a more pronounced modification of meat quality traits than the mere presence of WS.

  5. [Hysteroscopic polypectomy, treatment of abnormal uterine bleeding].

    Science.gov (United States)

    de Los Rios, P José F; López, R Claudia; Cifuentes, P Carolina; Angulo, C Mónica; Palacios-Barahona, Arlex U

    2015-07-01

    To evaluate the effectiveness of the hysteroscopic polypectomy in terms of the decrease of the abnormal uterine bleeding. A cross-sectional and analytical study was done with patients to whom a hysteroscopic polypectomy was done for treating the abnormal uterine bleeding, between January 2009 and December 2013. The response to the treatment was evaluated via a survey given to the patients about the behavior of the abnormal uterine bleeding after the procedure and about overall satisfaction. The results were obtained after a hysteroscopic polypectomy done to 128 patients and were as follows. The average time from the polypectomy applied until the survey was 30.5 months, with a standard deviation of 18 months. 67.2% of the patients reported decreased abnormal uterine bleeding and the 32.8% reported a persistence of symptoms. On average 82.8% of the. patients were satisfied with the treatment. Bivariate and multivariate analysis showed no association between the variables studied and no improvement of abnormal uterine bleeding after surgery (polypectomy). There were no complications. Hysteroscopic polypectomy is a safe surgical treatment, which decreases on two of three patients the abnormal uterine bleeding in the presence of endometrial polyps, with an acceptable level of satisfaction.

  6. Antepartum Mastitis: A Rare Occurrence.

    Science.gov (United States)

    Malik, Sushma; Patil, Varsha Anant; Korday, Charusheela Sujit; Shah, Dipti Parag

    2015-08-01

    Puerperal or lactational mastitis is an inflammatory condition of the breast that is commonly encountered in breastfeeding mothers. It occurs most commonly in the postpartum period, generally in the first 6 weeks of breastfeeding. In contrast, antepartum mastitis is an uncommon condition, and if not treated adequately, it may be complicated by the formation of a breast abscess. The authors present a case of a 24-year-old, second gravida mother who developed unilateral antepartum mastitis with abscess formation at 34 weeks of gestation, which was initially treated with antibiotics and surgical drainage. However, her symptoms persisted over the next 2 weeks, and she was referred to the authors' institution, where she was managed with antibiotics and surgical drainage after delivering a healthy near-term infant. The abscesses healed completely 2 months later, with sequelae of residual scarring and a nonprotractile nipple. The authors wish to emphasize that health care providers should be aware of the occurrence of mastitis in the antepartum period. Early recognition with adequate treatment of mastitis is the key to avoiding complications, and this will prevent lactation issues and also reduce morbidity in the mother and neonate. © The Author(s) 2015.

  7. Risk factors and the occurrence of cerebral palsy in high risk infants

    Directory of Open Access Journals (Sweden)

    Setyo Handryastuti

    2018-04-01

    Full Text Available Background The incidence of cerebral palsy (CP has increased due to better survival rates of high-risk babies. Early detection and time to the occurrence of CP in the first year of life is important in order to provide early intervention. Objectives To determine the proportion of CP in high-risk babies, the time to the occurrence of CP in the first year, and assess possible associations between risk factors of CP and time to the occurrence of CP. Methods A prospective cohort study was done on 150 high-risk babies up to the age of 12 months. We obtained history of motor ability and assessed primitive reflexes and postural reactions of subjects at the ages of 4 and 6 months. The diagnosis of CP was established at 6 and 12 months of age. Results The proportion of CP was 26% at 6 months and 24% at 12 months of age. Significant risk factors associated with CP at 6 and 12 months of age were cerebral ultrasound abnormalities, hypoxic-ischemic encephalopathy, and intracranial hemorrhage. In 88.7% of subjects with CP, CP was detected in the first 6 months. Mean age at the occurrence of CP was 9.99 months (95%CI 9.46 to 10.53. Risk factors that significantly affected the time to the occurrence of CP by survival analysis were ultrasound abnormalities and hypoxic-ischemic encephalopathy. Conclusions Cerebral palsy can be detected as early as the first 6 months of life. Cerebral ultrasound abnormalities and hypoxic ischemic encephalopathy are the risk factors associated with CP.

  8. Micronuclei and other erythrocyte nuclear abnormalities in fishes from the Great Lakes Basin, USA

    Science.gov (United States)

    Braham, Ryan P.; Blazer, Vicki; Shaw, Cassidy H.; Mazik, Patricia M.

    2017-01-01

    Biological markers (biomarkers) sensitive to genotoxic and mutagenic contamination in fishes are widely used to identify exposure effects in aquatic environments. The micronucleus assay was incorporated into a suite of indicators to assess exposure to genotoxic and mutagenic contamination at five Great Lakes Areas of Concern (AOCs), as well as one non-AOC (reference) site. The assay allowed enumeration of micronuclei as well as other nuclear abnormalities for both site and species comparisons. Erythrocyte abnormality data was also compared to skin and liver tumor prevalence and hepatic transcript abundance. Erythrocyte abnormalities were observed at all sites with variable occurrence and severity among sites and species. Benthic-oriented brown bullhead (Ameiurus nebulosus) and white sucker (Catostomus commersonii) expressed lower rates of erythrocyte abnormalities, but higher rates of skin and liver neoplasms, when compared to pelagic-oriented largemouth bass (Micropterus salmoides) or smallmouth bass (Micropterus dolomieu) at the same site. The reduced erythrocyte abnormalities, increased transcript abundance associated with Phase I and II toxicant responsive pathways, and increased neoplastic lesions among benthic-oriented taxa may indicate the development of contaminant resistance of these species to more acute effects.

  9. Associations between Zinc Deficiency and Metabolic Abnormalities in Patients with Chronic Liver Disease

    Directory of Open Access Journals (Sweden)

    Takashi Himoto

    2018-01-01

    Full Text Available Zinc (Zn is an essential trace element which has favorable antioxidant, anti-inflammatory, and apoptotic effects. The liver mainly plays a crucial role in maintaining systemic Zn homeostasis. Therefore, the occurrence of chronic liver diseases, such as chronic hepatitis, liver cirrhosis, or fatty liver, results in the impairment of Zn metabolism, and subsequently Zn deficiency. Zn deficiency causes plenty of metabolic abnormalities, including insulin resistance, hepatic steatosis and hepatic encephalopathy. Inversely, metabolic abnormalities like hypoalbuminemia in patients with liver cirrhosis often result in Zn deficiency. Recent studies have revealed the putative mechanisms by which Zn deficiency evokes a variety of metabolic abnormalities in chronic liver disease. Zn supplementation has shown beneficial effects on such metabolic abnormalities in experimental models and actual patients with chronic liver disease. This review summarizes the pathogenesis of metabolic abnormalities deriving from Zn deficiency and the favorable effects of Zn administration in patients with chronic liver disease. In addition, we also highlight the interactions between Zn and other trace elements, vitamins, amino acids, or hormones in such patients.

  10. Ocular abnormalities in healthy Standardbred foals.

    Science.gov (United States)

    Barsotti, Giovanni; Sgorbini, Micaela; Marmorini, Paola; Corazza, Michele

    2013-07-01

    To determine the prevalence and describe ocular abnormalities in healthy Standardbred foals within 48 h of birth. One hundred and two neonatal foals. All foals had an unassisted delivery. On the basis of physical examination and the results of hematological and biochemical parameters, all foals were unaffected by systemic diseases. A complete ophthalmic examination was performed within 48 h of birth. Foals with ocular hemorrhages were re-examined weekly until the abnormalities were resolved. 65/102 (63.7%) foals did not show ocular abnormalities, while in 37/102 (36.3%) cases, ocular abnormalities were present. Retinal and subconjunctival hemorrhages were recorded in 19/102 (18.6%), and in 13/102 (12.7%), respectively. In 4/102 (3.9%) animals, an entropion of the lower eyelid was present. Only one foal (1%) showed a congenital nuclear unilateral cataract. No other ocular abnormalities were detected. However, all foals showed various degrees of remnants of hyaloid system. One week after the first ocular examination, retinal hemorrhages had resolved in 100% of the eyes, whereas subconjunctival hemorrhages had disappeared in all eyes by the second week following the first examination. The acquired ocular lesions observed with relatively high frequency in the examined healthy Standardbred foals were ocular hemorrhages, which always showed a good outcome. Although these abnormalities were present at birth, they were not considered strictly congenital but likely acquired during parturition. Instead, congenital ocular abnormalities were rarely diagnosed, and the entropion of the lower eyelid was the most common disease in the breed. © 2012 American College of Veterinary Ophthalmologists.

  11. Mud Volcanoes Formation And Occurrence

    Science.gov (United States)

    Guliyev, I. S.

    2007-12-01

    Mud volcanoes are natural phenomena, which occur throughout the globe. They are found at a greater or lesser scale in Azerbaijan, Turkmenistan, Georgia, on the Kerch and Taman peninsulas, on Sakhalin Island, in West Kuban, Italy, Romania, Iran, Pakistan, India, Burma, China, Japan, Indonesia, Malaysia, New Zealand, Mexico, Colombia, Trinidad and Tobago, Venezuela and Ecuador. Mud volcanoes are most well-developed in Eastern Azerbaijan, where more than 30% of all the volcanoes in the world are concentrated. More than 300 mud volcanoes have already been recognized here onshore or offshore, 220 of which lie within an area of 16,000 km2. Many of these mud volcanoes are particularly large (up to 400 m high). The volcanoes of the South Caspian form permanent or temporary islands, and numerous submarine banks. Many hypotheses have been developed regarding the origin of mud volcanoes. Some of those hypotheses will be examined in the present paper. Model of spontaneous excitation-decompaction (proposed by Ivanov and Guliev, 1988, 2002). It is supposed that one of major factors of the movement of sedimentary masses and formation of hydrocarbon deposits are phase transitions in sedimentary basin. At phase transitions there are abnormal changes of physical and chemical parameters of rocks. Abnormal (high and negative) pressure takes place. This process is called as excitation of the underground environment with periodicity from several tens to several hundreds, or thousand years. The relationship between mud volcanism and the generation of hydrocarbons, particularly methane, is considered to be a critical factor in mud volcano formation. At high flow rates the gas and sediment develops into a pseudo-liquid state and as flow increases the mass reaches the "so-called hover velocity" where mass transport begins. The mass of fluid moves as a quasi-uniform viscous mass through the sediment pile in a piston like manner until expelled from the surface as a "catastrophic eruption

  12. Detecting Kidney and Urinary Tract Abnormalities Before Birth

    Science.gov (United States)

    ... Guide Detecting Kidney and Urinary Tract Abnormalities Before Birth Print Email Ultrasound examinations are often done as ... What causes urinary tract abnormalities to occur before birth? In about one of 500 births, some abnormality ...

  13. Chromosomal abnormality in patients with secondary amenorrhea.

    Science.gov (United States)

    Safai, Akbar; Vasei, Mohammad; Attaranzadeh, Armin; Azad, Fariborz; Tabibi, Narjes

    2012-04-01

    Secondary amenorrhea is a condition in which there is cessation of menses after at least one menstruation. It is a symptom of different diseases, such as hormonal disturbances which range from pituitary to ovarian origin, as well as chromosomal abnormalities. Knowledge of the distinct cause of secondary amenorrhea is of tremendous benefit for the management and monitoring of patients. In this study, we determine the chromosomal abnormalities in patients with secondary amenorrhea in Southwest Iran. We selected 94 patients with secondary amenorrhea who referred to our Cytogenetic Ward from 2004 until 2009. For karyotyping, peripheral blood lymphocyte cultures were set up by conventional technique. In this study, 5.3% (n=5) of patients with secondary amenorrhea presented with chromosomal abnormalities, of which all contained an X element. The chromosomal abnormalities were: i) 45, X (n=1); ii) 47, XXX (n=1); iii) 45, X [13]/ 45, Xi(X)q[17] (n=1);  iv) 45, X[12]/46,X,+mar[12] (n=1); and v) 46,X,del(Xq)(q23q28) (n=1). Our study revealed that some causes of secondary amenorrhea could be due to chromosomal abnormalities. Therefore, cytogenetic studies should be important tests in the evaluation of patients with secondary amenorrhea.

  14. Cardiac abnormality prediction using HMLP network

    Science.gov (United States)

    Adnan, Ja'afar; Ahmad, K. A.; Mat, Muhamad Hadzren; Rizman, Zairi Ismael; Ahmad, Shahril

    2018-02-01

    Cardiac abnormality often occurs regardless of gender, age and races but depends on the lifestyle. This problem sometimes does not show any symptoms and usually detected once it already critical which lead to a sudden death to the patient. Basically, cardiac abnormality is the irregular electrical signal that generate by the pacemaker of the heart. This paper attempts to develop a program that can detect cardiac abnormality activity through implementation of Hybrid Multilayer Perceptron (HMLP) network. A certain amount of data of the heartbeat signals from the electrocardiogram (ECG) will be used in this project to train the MLP and HMLP network by using Modified Recursive Prediction Error (MRPE) algorithm and to test the network performance.

  15. Radiographic abnormalities in tricyclic acid overdose

    International Nuclear Information System (INIS)

    Varnell, R.M.; Richardson, M.L.; Vincent, J.M.; Godwin, J.D.

    1987-01-01

    Several case reports have described adult respiratory distress syndrome (ARDS) secondary to tricyclic acid (TCA) overdose. During a 1-year period 83 patients requiring intubation secondary to drug overdose were evaluated. Abnormalities on chest radiographs occurred in 26 (50%) of the 54 patients with TCA overdose, compared to six (21%) of the 29 patients overdosed with other drugs. In addition, five (9%) of the patients with TCA overdose subsequently had radiographic and clinical abnormalities meeting the criteria for ARDS. Only one (3%) of the patients with non-TCA overdose subsequently had change suggesting ARDS. TCAs should be added to the list of drugs associated with ARDS, and TCA overdose should be considered a major risk factor in the development of radiographically evident abnormalities

  16. Schizophrenia and abnormal brain network hubs.

    Science.gov (United States)

    Rubinov, Mikail; Bullmore, Ed

    2013-09-01

    Schizophrenia is a heterogeneous psychiatric disorder of unknown cause or characteristic pathology. Clinical neuroscientists increasingly postulate that schizophrenia is a disorder of brain network organization. In this article we discuss the conceptual framework of this dysconnection hypothesis, describe the predominant methodological paradigm for testing this hypothesis, and review recent evidence for disruption of central/hub brain regions, as a promising example of this hypothesis. We summarize studies of brain hubs in large-scale structural and functional brain networks and find strong evidence for network abnormalities of prefrontal hubs, and moderate evidence for network abnormalities of limbic, temporal, and parietal hubs. Future studies are needed to differentiate network dysfunction from previously observed gray- and white-matter abnormalities of these hubs, and to link endogenous network dysfunction phenotypes with perceptual, behavioral, and cognitive clinical phenotypes of schizophrenia.

  17. Folate metabolism abnormalities in autism: potential biomarkers.

    Science.gov (United States)

    Frye, Richard E; Slattery, John C; Quadros, Edward V

    2017-08-03

    Autism spectrum disorder (ASD) has been linked to abnormalities in folate metabolism. Polymorphisms in folate genes may act in complex polygenic ways to increase the risk of developing ASD. Autoantibodies that block folate transport into the brain have been associated with ASD and children with ASD and these autoantibodies respond to high doses of a reduced form of folate known as folinic acid (leucovorin calcium). Some of the same abnormalities are also found in mothers of children with ASD and supplementing folate during preconception and gestational periods reduces the risk to the offspring from developing ASD. These data suggest that folate pathway abnormalities may be a major metabolic disturbance underlying ASD that can be leveraged as biomarkers to improve symptoms and prevent ASD.

  18. Abnormal cervical cytology and health care use

    DEFF Research Database (Denmark)

    Frederiksen, Maria Eiholm; Baillet, Miguel Vázquez-Prada; Dugué, Pierre-Antoine

    2015-01-01

    OBJECTIVE: This study aimed to assess the long-term use of health care services in women with abnormal cytology results compared to women with normal cytology results. METHODS: We did a nationwide population-based study, using women aged 23 to 59years participating in the national organized...... cervical cancer screening program. We included a study population of 40,153 women with abnormal cytology (exposed) and 752,627 women with normal cytology (non-exposed). We retrieved data from the Danish Civil Registration System, the Danish Pathology Data Bank, the National Health Service, the National...... the "before" to the "after" period. This increase was significantly higher for exposed than non-exposed women regarding contacts to GP, admissions to hospitals, and drug use. CONCLUSION: Women with abnormal cytology results constitute a selected group with a higher health care use than other women even before...

  19. Abnormal Grain Growth Suppression in Aluminum Alloys

    Science.gov (United States)

    Hales, Stephen J. (Inventor); Claytor, Harold Dale (Inventor); Alexa, Joel A. (Inventor)

    2015-01-01

    The present invention provides a process for suppressing abnormal grain growth in friction stir welded aluminum alloys by inserting an intermediate annealing treatment ("IAT") after the welding step on the article. The IAT may be followed by a solution heat treatment (SHT) on the article under effectively high solution heat treatment conditions. In at least some embodiments, a deformation step is conducted on the article under effective spin-forming deformation conditions or under effective superplastic deformation conditions. The invention further provides a welded article having suppressed abnormal grain growth, prepared by the process above. Preferably the article is characterized with greater than about 90% reduction in area fraction abnormal grain growth in any friction-stir-welded nugget.

  20. Enhanced monitoring of abnormal emergency department demands

    KAUST Repository

    Harrou, Fouzi

    2016-06-13

    This paper presents a statistical technique for detecting signs of abnormal situation generated by the influx of patients at emergency department (ED). The monitoring strategy developed was able to provide early alert mechanisms in the event of abnormal situations caused by abnormal patient arrivals to the ED. More specifically, This work proposed the application of autoregressive moving average (ARMA) models combined with the generalized likelihood ratio (GLR) test for anomaly-detection. ARMA was used as the modelling framework of the ARMA-based GLR anomaly-detection methodology. The GLR test was applied to the uncorrelated residuals obtained from the ARMA model to detect anomalies when the data did not fit the reference ARMA model. The ARMA-based GLR hypothesis testing scheme was successfully applied to the practical data collected from the database of the pediatric emergency department (PED) at Lille regional hospital center, France. © 2015 IEEE.

  1. Abnormal fetal head shape: aetiology and management

    DEFF Research Database (Denmark)

    Petersen, Olav Bjørn; David, Anna; Thomasson, Louise

    2007-01-01

    and define management pathways for fetuses with an abnormal skull shape. Methods: Our FMU databases were searched to ascertain all fetuses with an abnormal skull shape. Sonographic findings, diagnosis and outcome were reviewed. Results: Of the 370 cases identified, 31.6% were associated with spinabifida......Background: Abnormal head shape is an uncommon finding on prenatal ultrasound, often associated with breech presentation, spinabifida, aneuploidy or secondary to oligohydramnios or fetal position. Other aetiologies are rarer and may be more difficult to define. Objective: To determine the aetiology...... incidence of genetic syndromes, in the absence of a clear diagnosis, referral to a tertiary centre and genetic input is advised as detection of subtle sonographic features may aid diagnosis, allowing for targeted molecular analysis. An algorithm for management will be proposed....

  2. Osseous temporomandibular joint abnormalities in rheumatic disease

    International Nuclear Information System (INIS)

    Larheim, T.A.; Kolbenstvedt, A.; Rikshospitalet, Oslo

    1990-01-01

    Computed tomography (CT) of the temporomandibular joint (TMJ) was compared with hypocycloidal tomography in 30 joints of 15 adults with rheumatic disease. CT included 1.5 mm thick axial scans (at 1.0 mm intervals) with reformatted oblique sagittal and oblique coronal sections. Multisection (at 2.0 mm intervals) tomography included oblique sagittal and occasionally, oblique coronal sections. CT demonstrated bone abnormalities in 21 and tomography in 20 joints, indicating high agreement between the imaging modalities regarding number of abnormal TMJs. Bone structures were, however, better visualized by multiplanar CT due to superior contrast and spatial resolution particularly in the most lateral and medial parts of the joint, indicating superiority of CT for depicting subtle bony TMJ abnormalities in patients with rheumatic disease. (orig.)

  3. [Abnormal peripheral circulation in heart failure].

    Science.gov (United States)

    Cohen-Solal, A; Laperche, T; Caviezel, B; Dahan, M; Gourgon, R

    1994-06-01

    Left ventricular failure leads to circulatory failure which causes clinical symptoms and in which regional blood flow changes play an important role. An abnormality of systemic vasodilatation on exercise or on pharmacological intervention has been shown. This affects both the resistance and conductive vessels and is mainly functional, related to neurohormonal stimulation with a predominance of vasoconstrictive factors amongst which increased adrenergic tone probably plays an essential part. A modification of the endothelium-dependent response has recently been confirmed. The presence of structural vascular abnormalities (increase in parietal sodium and water concentrations, "remodelling" remains debatable in the human. These abnormalities have a common factor in their chronicity and take time to regress with medical treatment or after cardiac transplantation. Physical training seems to induce more marked and, above all, more rapid effects.

  4. UMTRA project list of reportable occurrences

    Energy Technology Data Exchange (ETDEWEB)

    1994-04-01

    This UMTRA Project List of Reportable occurrences is provided to facilitate efficient categorization of reportable occurrences. These guidelines have been established in compliance with DOE minimum reporting requirements under DOE Order 5000.3B. Occurrences are arranged into nine groups relating to US Department of Energy (DOE) Uranium Mill Tailings Remedial Action (UMTRA) Project operations for active sites. These nine groupings are provided for reference to determined whether an occurrence meets reporting requirement criteria in accordance with the minimum reporting requirements. Event groups and significance categories that cannot or will not occur, and that do not apply to UMTRA Project operations, are omitted. Occurrence categorization shall be as follows: Group 1. Facility Condition; Group 2. Environmental; Group 3. Personnel Safety; Group 4. Personnel Radiation Protection; Group 5. Safeguards and Security; Group 6. Transportation; Group 7. Value Basis Reporting; Group 8. Facility Status; and Group 9. Cross-Category Items.

  5. UMTRA project list of reportable occurrences

    International Nuclear Information System (INIS)

    1994-04-01

    This UMTRA Project List of Reportable occurrences is provided to facilitate efficient categorization of reportable occurrences. These guidelines have been established in compliance with DOE minimum reporting requirements under DOE Order 5000.3B. Occurrences are arranged into nine groups relating to US Department of Energy (DOE) Uranium Mill Tailings Remedial Action (UMTRA) Project operations for active sites. These nine groupings are provided for reference to determined whether an occurrence meets reporting requirement criteria in accordance with the minimum reporting requirements. Event groups and significance categories that cannot or will not occur, and that do not apply to UMTRA Project operations, are omitted. Occurrence categorization shall be as follows: Group 1. Facility Condition; Group 2. Environmental; Group 3. Personnel Safety; Group 4. Personnel Radiation Protection; Group 5. Safeguards and Security; Group 6. Transportation; Group 7. Value Basis Reporting; Group 8. Facility Status; and Group 9. Cross-Category Items

  6. Abnormal vibration induced illusion of movement in essential tremor: evidence for abnormal muscle spindle afferent function

    OpenAIRE

    Frima, N; Grunewald, R

    2005-01-01

    Objectives: Vibration induced illusion of movement (VIIM) is abnormal in patients with idiopathic focal dystonia, an abnormality which corrects with fatigue of the vibrated muscle. Since dystonia and essential tremor sometimes coexist in families, we investigated the perception of VIIM and the effect of fatigue on VIIM in patients with essential tremor.

  7. Nonpathologizing trauma interventions in abnormal psychology courses.

    Science.gov (United States)

    Hoover, Stephanie M; Luchner, Andrew F; Pickett, Rachel F

    2016-01-01

    Because abnormal psychology courses presuppose a focus on pathological human functioning, nonpathologizing interventions within these classes are particularly powerful and can reach survivors, bystanders, and perpetrators. Interventions are needed to improve the social response to trauma on college campuses. By applying psychodynamic and feminist multicultural theory, instructors can deliver nonpathologizing interventions about trauma and trauma response within these classes. We recommend class-based interventions with the following aims: (a) intentionally using nonpathologizing language, (b) normalizing trauma responses, (c) subjectively defining trauma, (d) challenging secondary victimization, and (e) questioning the delineation of abnormal and normal. The recommendations promote implications for instructor self-reflection, therapy interventions, and future research.

  8. Temporomandibular joint abnormalities in rheumatoid arthritis

    International Nuclear Information System (INIS)

    Larheim, T.A.; Tveito, L.; Dale, K.; Ruud, A.F.

    1981-01-01

    Transantral (infraorbital, transmaxillary) examination of the temporomandibular joint was compared with conventional transcranial examination and lateral tomography of patients with rheumatoid arthritis aged 23 to 83. Abnormalities were most frequently found at tomography, and equally frequent at transantral and transcranial examinations. The various examinations appeared to be rather supplementary. Bone erosion was frequently observed at transantral examination, which appeared to be the preferable radiographic method for detecting arthritis of this joint. Combined with transcranial examination, the method is recommended for the evaluation of temporomandibular joint abnormalities in rheumatoid arthritis if tomographic equipment is not available. (Auth.)

  9. Temporal abnormalities in children with developmental dyscalculia.

    Science.gov (United States)

    Vicario, Carmelo Mario; Rappo, Gaetano; Pepi, Annamaria; Pavan, Andrea; Martino, Davide

    2012-01-01

    Recent imaging studies have associated Developmental dyscalculia (DD) to structural and functional alterations corresponding Parietal and the Prefrontal cortex (PFC). Since these areas were shown also to be involved in timing abilities, we hypothesized that time processing is abnormal in DD. We compared time processing abilities between 10 children with pure DD (8 years old) and 11 age-matched healthy children. Results show that the DD group underestimated duration of a sub-second scale when asked to perform a time comparison task. The timing abnormality observed in our DD participants is consistent with evidence of a shared fronto-parietal neural network for representing time and quantity.

  10. Abnormal processing of deontological guilt in obsessive-compulsive disorder.

    Science.gov (United States)

    Basile, Barbara; Mancini, Francesco; Macaluso, Emiliano; Caltagirone, Carlo; Bozzali, Marco

    2014-07-01

    Guilt plays a significant role in the occurrence and maintenance of obsessive-compulsive disorder (OCD). Two major types of guilt have been identified: one deriving from the transgression of a moral rule (deontological guilt DG), another (altruistic guilt AG), relying on the assumption of having compromised a personal altruistic goal. Clinical evidence suggests that OCD patients are particularly sensitive to DG, but not AG. In this functional magnetic resonance imaging (fMRI) study, we investigated brain response of OCD patients while processing DG and AG stimuli. A previously validated fMRI paradigm was used to selectively evoke DG and AG, and anger and sadness, as control emotions in 13 OCD patients and 19 healthy controls. Patients' behavioral results showed a prominent attitude to experience guilt, compared to controls, while accomplishing task. fMRI results revealed that patients have reduced activation in the anterior cingulate (ACC) and frontal gyrus when experiencing guilt, regardless of its specific type (DG or AG). When separately considering each type of guilt (against each of its control), patients showed decreased activation in the ACC, the insula and the precuneus, for DG. No significant differences were observed between groups when processing AG, anger or sad stimuli. This study provides evidence for an abnormal processing of guilt, and specifically DG, in OCD patients. We suggest that decreased activation may reflect patients' cerebral efficiency, which derives from their frequent exposure to guilty feelings ("neural efficiency hypothesis"). In conclusion, our study confirms a selective abnormal processing of guilt, and specifically DG, in OCD.

  11. Visual assessment of early emphysema and interstitial abnormalities on CT is useful in lung cancer risk analysis

    DEFF Research Database (Denmark)

    Wille, Mathilde M. W.; Thomsen, Laura H.; Petersen, Jens

    2016-01-01

    Objectives: Screening for lung cancer should be limited to a high-risk-population, and abnormalities in low-dose computed tomography (CT) screening images may be relevant for predicting the risk of lung cancer. Our aims were to compare the occurrence of visually detected emphysema and interstitial.......499). Conclusions: Even early signs of emphysema and interstitial abnormalities are associated with lung cancer. Quantitative measurements of emphysema—regardless of type—do not show the same association. Key Points: • Visually detected emphysema on CT is more frequent in individuals who develop lung cancer...

  12. Ophthalmologic abnormalities among deaf students in Kaduna ...

    African Journals Online (AJOL)

    Background: The association between deafness and ocular problems is well established; however the nature and prevalence of these problems are diverse across the globe. Objective: The aim of this study is to determine the nature and prevalence of ophthalmologic abnormalities in deaf students and offer treatment to ...

  13. Developmental abnormalities of mid and hindbrain

    African Journals Online (AJOL)

    1Pediatric Neurology Department, Cairo University, 2Clinical Genetics ... Research Centre,3Human Cytogenetics Department, Human Genetics and. Genome ..... cVH. 2/23 cri du chat. 1/23 del. 18q21.1- qter. 1/23. Breathing abnormalities. 3. 13. 3. -. 1. -. -. -. -. Feeding problems. 8. 34.8. -. 5. 2. -. -. 1. -. Autistic behavior. 3. 13.

  14. Prevelence and Pattern of Electrocardiographic Abnormalities Seen ...

    African Journals Online (AJOL)

    Objective: There is paucity of published data on the prevalence and pattern of electrocardiographic abnormalities (ECGA) seen in adult Nigerians referred for this investigation. This study determined the prevalence and pattern of some ECGA in Nigerian adults. Methods: This is a hospital based audit to determine the ...

  15. Relationship among sera lipoprotein abnormalities in healthy ...

    African Journals Online (AJOL)

    Jane

    2011-08-29

    Aug 29, 2011 ... HOMA-IR (P = 0.03) in the case group as compared to the control group. We conclude that a family history of diabetic parents can lead to lipid parameters abnormalities and CVD risk factor via aggregation of inherited defected genes. Key words: Diabetes, oxidized-low density lipoprotein (LDL), Apo B100, ...

  16. immunological arthritis Prevalence of biochemical and abnormalities ...

    African Journals Online (AJOL)

    1991-02-02

    Feb 2, 1991 ... Tile prevalence of biochemical and immunological abnormali- ties was studied in a group of 256 patients with rheumatoid arthritis (104 coloureds, 100 whites and 52 blacks). The most common biochemical abnormalities detected were a reduction in the serum creatinine value (43,4%), raised globulins (39 ...

  17. Prevalence Of Dental Abnormalities Among Handicapped Children ...

    African Journals Online (AJOL)

    Over 34% of them had various dental abnormalities, the most commonly encountered being enamel hypoplasia which constituted 12.3%, and more than half of which was chronologic (58.9%). This was predominant among the mentally handicapped (13.5%) and the blind (12.5%). Tetracyline staining was also a common ...

  18. Dynamic Abnormal Grain Growth in Refractory Metals

    Science.gov (United States)

    Noell, Philip J.; Taleff, Eric M.

    2015-11-01

    High-temperature plastic deformation of the body-centered cubic (BCC) refractory metals Mo and Ta can initiate and propagate abnormal grains at significantly lower temperatures and faster rates than is possible by static annealing alone. This discovery reveals a new and potentially important aspect of abnormal grain growth (AGG) phenomena. The process of AGG during plastic deformation at elevated temperatures, termed dynamic abnormal grain growth (DAGG), was observed at homologous temperatures between 0.52 and 0.72 in both Mo and Ta sheet materials; these temperatures are much lower than those for previous observations of AGG in these materials during static annealing. DAGG was used to repeatedly grow single crystals several centimeters in length. Investigations to date have produced a basic understanding of the conditions that lead to DAGG and how DAGG is affected by microstructure in BCC refractory metals. The current state of understanding for DAGG is reviewed in this paper. Attention is given to the roles of temperature, plastic strain, boundary mobility and preexisting microstructure. DAGG is considered for its potential useful applications in solid-state crystal growth and its possibly detrimental role in creating undesired abnormal grains during thermomechanical processing.

  19. Somatic chromosomal abnormalities in couples undergoing infertility ...

    Indian Academy of Sciences (India)

    1999). Oligozoospermia is .... age of abnormal metaphases needed to distinguish between low level and true mosaicism. This borderline ... Moore A. K., Lynch K., Arny M. J. and Grow D. R. 2008 Turner mosaicism (45,X/46,XX) diagnosed in a ...

  20. Heat stress protection in abnormally hot environments.

    CSIR Research Space (South Africa)

    Schutte, PC

    1994-11-01

    Full Text Available The present report presents the findings of SIMRAC project GAP 045 entitled ‘Heat stress protection in abnormally hot environments’. It is intended as a reference to develop guidelines which, in turn would assist mine management in establishing safe...

  1. The prevalence of electroencephalographic abnormalities and ...

    African Journals Online (AJOL)

    Adele

    2004-05-20

    May 20, 2004 ... South African studies. There is little South African data examining either prevalence or usefulness of EEG abnormalities among adult psychiatric patients. Some work has been done in adolescents. Szabo1 reviewed all admissions to the adolescent inpatient unit at Tara. Hospital between 1990 and 1995.

  2. Lentiginosis, Deafness and Cardiac Abnormalities | Cronje | South ...

    African Journals Online (AJOL)

    Three members of a family with features of the 'leopard' syndrome are described. The important findings were generalized lentigo, deafness, and cardiac and electrocardiographic abnormalities. Progressive obstructive cardiomyopathy and arrhythmias are features of the condition which may be present, and are potentially ...

  3. Craniofacial abnormalities among patients with Edwards Syndrome

    Directory of Open Access Journals (Sweden)

    Rafael Fabiano M. Rosa

    2013-09-01

    Full Text Available OBJECTIVE To determine the frequency and types of craniofacial abnormalities observed in patients with trisomy 18 or Edwards syndrome (ES. METHODS This descriptive and retrospective study of a case series included all patients diagnosed with ES in a Clinical Genetics Service of a reference hospital in Southern Brazil from 1975 to 2008. The results of the karyotypic analysis, along with clinical data, were collected from medical records. RESULTS: The sample consisted of 50 patients, of which 66% were female. The median age at first evaluation was 14 days. Regarding the karyotypes, full trisomy of chromosome 18 was the main alteration (90%. Mosaicism was observed in 10%. The main craniofacial abnormalities were: microretrognathia (76%, abnormalities of the ear helix/dysplastic ears (70%, prominent occiput (52%, posteriorly rotated (46% and low set ears (44%, and short palpebral fissures/blepharophimosis (46%. Other uncommon - but relevant - abnormalities included: microtia (18%, orofacial clefts (12%, preauricular tags (10%, facial palsy (4%, encephalocele (4%, absence of external auditory canal (2% and asymmetric face (2%. One patient had an initial suspicion of oculo-auriculo-vertebral spectrum (OAVS or Goldenhar syndrome. CONCLUSIONS: Despite the literature description of a characteristic clinical presentation for ES, craniofacial alterations may be variable among these patients. The OAVS findings in this sample are noteworthy. The association of ES with OAVS has been reported once in the literature.

  4. Somatic chromosomal abnormalities in couples undergoing infertility ...

    Indian Academy of Sciences (India)

    1996; Johnson 1998). Consid- ering pooled data obtained from more than 9000 azoosper- mic and oligozoospermic men, a 5.8% incidence of chromo- somal abnormalities has been found. Of these, 4.2% affect the gonosomes and 1.5% the autosomes, respectively (John- son 1998). In detail, sex chromosome anomalies ...

  5. Fetal chromosome abnormalities and congenital malformations: an ...

    African Journals Online (AJOL)

    Objective: Our objective were to determine and evaluate the role of genetic counseling and amniocentesis in early detection of chromosomal abnormalities or congenital malformations among women at risk. Patients and Methods: The study was performed on 784 pregnant women. Results: The cause for seeking genetic ...

  6. Structural and molecular hair abnormalities in trichothiodystrophy.

    Science.gov (United States)

    Liang, Christine; Morris, Andrea; Schlücker, Sebastian; Imoto, Kyoko; Price, Vera H; Menefee, Emory; Wincovitch, Stephen M; Levin, Ira W; Tamura, Deborah; Strehle, Katrin R; Kraemer, Kenneth H; DiGiovanna, John J

    2006-10-01

    We examined hair from 15 patients with trichothiodystrophy (TTD), a rare inherited disorder with brittle, cystine-deficient hair. They had a wide variety of phenotypes, from brittle hair only to severe intellectual impairment and developmental delay. Polarizing light microscopic examination showed alternating light and dark (tiger tail) bands under polarizing microscopy. Confocal microscopy captured structural features of breaks in intact TTD hairs. The autofluorescent appearance was regular and smooth in normal donors and markedly irregular in sections of TTD hairs possibly reflecting abnormalities in melanin distribution. Scanning electron microscopy revealed numerous surface irregularities. All TTD hair samples had reduced sulfur content. We observed an inverse correlation (R(val)=0.9) between sulfur content and percent of hairs with shaft abnormalities (trichoschisis, trichorrhexis nodosa, or ribbon/twist). There was no association between clinical disease severity and percent of abnormal hairs. Raman spectra of hairs from TTD patients and normal donors revealed a larger contribution of energetically less favored disulfide conformers in TTD hairs. Our data indicate that the brittleness of the TTD hair is dependent upon abnormalities at several levels of organization. These changes make TTD hairs excessively prone to breakage and weathering.

  7. Correcting abnormal speaking through communication partners ...

    African Journals Online (AJOL)

    The listed characteristics are called speech disorders. Abnormal speaking attracts some penalties to the speaker. The penalties are usually very disturbing to the speaker that undertaking some therapeutic measures becomes inevitable. Communication partners strategy is a speech correction approach which makes use of ...

  8. Teaching Abnormal Psychology in a Multimedia Classroom.

    Science.gov (United States)

    Brewster, JoAnne

    1996-01-01

    Examines the techniques used in teaching an abnormal psychology class in a multimedia environment with two computers and a variety of audiovisual equipment. Students respond anonymously to various questions via keypads mounted on their desks, then immediately view and discuss summaries of their responses. (MJP)

  9. Schizophrenogenic Parenting in Abnormal Psychology Textbooks.

    Science.gov (United States)

    Wahl, Otto F.

    1989-01-01

    Considers the treatment of family causation of schizophrenia in undergraduate abnormal psychology textbooks. Reviews texts published only after 1986. Points out a number of implications for psychologists which arise from the inclusion in these texts of the idea that parents cause schizophrenia, not the least of which is the potential for…

  10. Abnormal interhemispheric connectivity in male psychopathic offenders.

    Science.gov (United States)

    Hoppenbrouwers, Sylco S; De Jesus, Danilo R; Sun, Yinming; Stirpe, Tania; Hofman, Dennis; McMaster, Jeff; Hughes, Ginny; Daskalakis, Zafiris J; Schutter, Dennis J L G

    2014-01-01

    Psychopathic offenders inevitably violate interpersonal norms and frequently resort to aggressive and criminal behaviour. The affective and cognitive deficits underlying these behaviours have been linked to abnormalities in functional interhemispheric connectivity. However, direct neurophysiological evidence for dysfunctional connectivity in psychopathic offenders is lacking. We used transcranial magnetic stimulation combined with electroencephalography to examine interhemispheric connectivity in the dorsolateral and motor cortex in a sample of psychopathic offenders and healthy controls. We also measured intracortical inhibition and facilitation over the left and right motor cortex to investigate the effects of local cortical processes on interhemispheric connectivity. We enrolled 17 psychopathic offenders and 14 controls in our study. Global abnormalities in right to left functional connectivity were observed in psychopathic offenders compared with controls. Furthermore, in contrast to controls, psychopathic offenders showed increased intracortical inhibition in the right, but not the left, hemisphere. The relatively small sample size limited the sensitivity to show that the abnormalities in interhemispheric connectivity were specifically related to the dorsolateral prefrontal cortex in psychopathic offenders. To our knowledge, this study provides the first neurophysiological evidence for abnormal interhemispheric connectivity in psychopathic offenders and may further our understanding of the disruptive antisocial behaviour of these offenders.

  11. Psychology Faculty Perceptions of Abnormal Psychology Textbooks

    Science.gov (United States)

    Rapport, Zachary

    2011-01-01

    The problem. The purpose of the current study was to investigate the perceptions and opinions of psychology professors regarding the accuracy and inclusiveness of abnormal psychology textbooks. It sought answers from psychology professors to the following questions: (1) What are the expectations of the psychology faculty at a private university of…

  12. Plant abnormality monitoring method and device therefor

    International Nuclear Information System (INIS)

    Isobe, Yusuke; Uchida, Shunsuke; Fujimori, Haruo.

    1997-01-01

    The present invention provides a method and a device capable of detecting abnormal symptoms of equipments having failed portions and portions to be repaired and requiring concentrated monitoring in a plant during operation, for example, nuclear power plants, in an early stage without losing reliability. Namely, the abnormality of the plant is judged based on the comparison of plant operation parameters and their allowable values in the method of monitoring plant abnormality. In this case, the allowable values of the plant operation parameters allowed to be changed based on the information on the state of equipments which shows the state of constitutional equipments of the plant. In addition, when a measured plant operation parameter exceeds the allowable value of each of the previously set plant operation parameters, allowable values of other plant operation parameters having relation with the plant operation parameters can be changed. According to the present invention, since the allowable range of the plant operation parameters for the equipments to be repaired and failed equipments can be made narrower than that of ordinary equipments, abnormal symptoms can be detected on the normal side in an early stage. (I.S.)

  13. ORIGINAL ARTICLE EEG changes and neuroimaging abnormalities ...

    African Journals Online (AJOL)

    salah

    Background:Autism is currently viewed as a genetically determined neurode- velopmental disorder although its definite underlying etiology remains to be established. Aim of the Study: Our purpose was to assess autism related morphological neuroimaging changes of the brain and EEG abnormalities in correlation to the.

  14. Craniocervical junction abnormalities with atlantoaxial subluxation ...

    African Journals Online (AJOL)

    Craniocervical junction abnormalities with atlantoaxial subluxation caused by ventral subluxation of C2 were diagnosed in a 6-month-old female Pomeranian with tetraplegia as a clinical sign. Lateral survey radiography of the neck with flexion revealed atlantoaxial subluxation with ventral subluxation of C2. Computed ...

  15. Recurrent chromosome 6 abnormalities in malignant mesothelioma.

    Science.gov (United States)

    Ribotta, M; Roseo, F; Salvio, M; Castagneto, B; Carbone, M; Procopio, A; Giordano, A; Mutti, L

    1998-04-01

    The long latency period between asbestos exposure and the onset of malignant mesothelioma (MM) suggests that a multistep tumorigenesis process occurs whilst the capability of asbestos fibres to interfere directly with chromosomes focuses on the critical role of the chromosomal abnormalities in this neoplasm. The aim of our study was to identify any recurrent chromosomal changes in ten primary MM cell cultures derived from pleural effusions of patients with MM from the same geographic area and environmental and/or occupational exposure to asbestos fibers. Cytogenetic analysis was performed in accordance with International System for Human Cytogenetic Nomenclature. Our results confirmed a great number of cytogenetic abnormalities in MM cells. Recurrent loss of the long arms of chromosome 6 (6q-) was the most frequent abnormality detected (four epithelial and two mixed subtypes) while, on the whole, abnormalities of chromosome 6 were found in nine out of ten cases whereas chromosome 6 was normal only in the case with fibromatous subtype. Monosomy 13 and 17 was found in five cases, monosomy 14 in four cases and 22 in three cases. Since deletion of 6q- was detected even in relatively undisturbed karyotype, we hypothesize a multistep carcinogenic process in which deletion of 6q- is an early event in the development and progression of malignant mesothelioma.

  16. Ophthalmological abnormalities in wild European hedgehogs ...

    African Journals Online (AJOL)

    In this study we aimed to examine wild European hedgehogs (Erinaceus europaeus) in rescue centres and to determine ocular abnormalities in this animal population. Three hundred animals varying in age from 2 months to 5 years were examined, 147 being male and 153 female. All animals were evaluated with direct ...

  17. Gastric emptying abnormal in duodenal ulcer

    International Nuclear Information System (INIS)

    Holt, S.; Heading, R.C.; Taylor, T.V.; Forrest, J.A.; Tothill, P.

    1986-01-01

    To investigate the possibility that an abnormality of gastric emptying exists in duodenal ulcer and to determine if such an abnormality persists after ulcer healing, scintigraphic gastric emptying measurements were undertaken in 16 duodenal ulcer patients before, during, and after therapy with cimetidine; in 12 patients with pernicious anemia, and in 12 control subjects. No difference was detected in the rate or pattern of gastric emptying in duodenal ulcer patients before and after ulcer healing with cimetidine compared with controls, but emptying of the solid component of the test meal was more rapid during treatment with the drug. Comparison of emptying patterns obtained in duodenal ulcer subjects during and after cimetidine treatment with those obtained in pernicious anemia patients and controls revealed a similar relationship that was characterized by a tendency for reduction in the normal differentiation between the emptying of solid and liquid from the stomach. The similarity in emptying patterns in these groups of subjects suggests that gastric emptying of solids may be influenced by changes in the volume of gastric secretion. The failure to detect an abnormality of gastric emptying in duodenal ulcer subjects before and after ulcer healing calls into question the widespread belief that abnormally rapid gastric emptying is a feature with pathogenetic significance in duodenal ulcer disease

  18. Abnormal Selective Attention Normalizes P3 Amplitudes in PDD

    Science.gov (United States)

    Hoeksma, Marco R.; Kemner, Chantal; Kenemans, J. Leon; van Engeland, Herman

    2006-01-01

    This paper studied whether abnormal P3 amplitudes in PDD are a corollary of abnormalities in ERP components related to selective attention in visual and auditory tasks. Furthermore, this study sought to clarify possible age differences in such abnormalities. Children with PDD showed smaller P3 amplitudes than controls, but no abnormalities in…

  19. Corpus callosum abnormalities: neuroradiological and clinical correlations.

    Science.gov (United States)

    Al-Hashim, Aqeela H; Blaser, Susan; Raybaud, Charles; MacGregor, Daune

    2016-05-01

    To study neuroradiological features in pediatric patients with corpus callosum abnormalities, using new functional subtyping for the corpus callosum, and to correlate the features with the clinical presentation. We performed a retrospective review of 125 patients with radiologically identified abnormalities of the corpus callosum seen between 1999 and 2012. The study reviewed clinical features, genetic etiology, and chromosomal microarray (CMA) results. We used a new functional classification for callosal abnormalities based on embryological and anatomical correlations with four classes: complete agenesis, anterior agenesis (rostrum, genu, body), posterior agenesis (isthmus, splenium), and complete hypoplasia (thinning). We also studied the presence of extracallosal abnormalities. The new functional callosal subtyping did not reveal significant differences between the various subtypes in association with neurological outcome; however, the presence of cardiac disease was found more frequently in the group with complete agenesis. Thirty-seven per cent (46/125) had identifiable causes: of these, 48% (22/46) had a monogenic disorder, 30% (14/46) had a pathogenic chromosomal copy-number variant detected by CMA or karyotype, and 22% (10/46) had a recognizable clinical syndrome for which no confirmatory genetic test was available (namely Aicardi syndrome/septo-optic dysplasia and Goldenhar syndrome). The diagnostic yield for a significant CMA change was 19%. The presence of Probst bundles was found to be associated with a better neurodevelopmental outcome. The functional classification system alone 'without clinical data' cannot predict the functional outcome. The presence of extracallosal brain abnormalities and an underlying genetic diagnosis predicted a worse neurodevelopmental outcome. This study highlights the importance of CMA testing and cardiac evaluation as part of a routine screen. © 2015 Mac Keith Press.

  20. Hemostatic Abnormalities in Multiple Myeloma Patients

    Science.gov (United States)

    Gogia, Aarti; Sikka, Meera; Sharma, Satender; Rusia, Usha

    2018-01-27

    Background: Multiple myeloma (MM) is a neoplastic plasma cell disorder characterized by clonal proliferation of plasma cells in the bone marrow. Diverse hemostatic abnormalities have been reported in patients with myeloma which predispose to bleeding and also thrombosis. Methods: Complete blood count, biochemical parameters and parameters of hemostasis i.e. platelet count, prothrombin time (PT), activated partial thromboplastin time (APTT), thrombin time (TT), factor VIII assay results, plasma fibrinogen, D-dimer and lupus anticoagulant, were assessed in 29 MM patients and 30 age matched controls. Results: The most frequent abnormal screening parameter was APTT. Of the six indicative of a bleeding tendency i.e. thrombocytopenia, prolonged PT, APTT, TT, reduced plasma fibrinogen and factor VIII, at least one was abnormal in 8 (27.6%) patients. Of the four prothrombotic markers, lupus anticoagulant, D-dimer, elevated factor VIII and plasma fibrinogen, one or more marker was present in 24 (82.7%). D-dimer was the most common prothrombotic marker, being elevated in 22 (75.9%) patients. One or more laboratory parameter of hemostasis was abnormal in all 29 (100%) patients. Though thrombotic complications are reported to be less frequent as compared to hemorrhagic manifestations, one or more marker of thrombosis was present in 24 (82.7%) patients. Conclusion: This study provided laboratory evidence of hemostatic dysfunction which may be associated with thrombotic or bleeding complications at diagnosis in all MM patients. Hence, screening for these abnormalities at the time of diagnosis should help improved prognosis in such cases. Creative Commons Attribution License

  1. Parenchymal abnormalities associated with developmental venous anomalies

    Energy Technology Data Exchange (ETDEWEB)

    San Millan Ruiz, Diego; Gailloud, Philippe [Johns Hopkins Hospital, Division of Interventional Neuroradiology, Baltimore, MD (United States); Delavelle, Jacqueline [Geneva University Hospital, Neuroradiology Section, Department of Radiology and Medical Informatics, Geneva (Switzerland); Yilmaz, Hasan; Ruefenacht, Daniel A. [Geneva University Hospital, Section of Interventional Neuroradiology, Department of Clinical Neurosciences, Geneva (Switzerland); Piovan, Enrico; Bertramello, Alberto; Pizzini, Francesca [Verona City Hospital, Service of Neuroradiology, Verona (Italy)

    2007-12-15

    To report a retrospective series of 84 cerebral developmental venous anomalies (DVAs), focusing on associated parenchymal abnormalities within the drainage territory of the DVA. DVAs were identified during routine diagnostic radiological work-up based on magnetic resonance imaging (MRI) (60 cases), computed tomography (CT) (62 cases) or both (36 cases). Regional parenchymal modifications within the drainage territory of the DVA, such as cortical or subcortical atrophy, white matter density or signal alterations, dystrophic calcifications, presence of haemorrhage or a cavernous-like vascular malformation (CVM), were noted. A stenosis of the collecting vein of the DVA was also sought for. Brain abnormalities within the drainage territory of a DVA were encountered in 65.4% of the cases. Locoregional brain atrophy occurred in 29.7% of the cases, followed by white matter lesions in 28.3% of MRI investigations and 19.3% of CT investigations, CVMs in 13.3% of MRI investigations and dystrophic calcification in 9.6% of CT investigations. An intracranial haemorrhage possibly related to a DVA occurred in 2.4% cases, and a stenosis on the collecting vein was documented in 13.1% of cases. Parenchymal abnormalities were identified for all DVA sizes. Brain parenchymal abnormalities were associated with DVAs in close to two thirds of the cases evaluated. These abnormalities are thought to occur secondarily, likely during post-natal life, as a result of chronic venous hypertension. Outflow obstruction, progressive thickening of the walls of the DVA and their morphological organization into a venous convergence zone are thought to contribute to the development of venous hypertension in DVA. (orig.)

  2. Motor Abnormalities and Epilepsy in Infants and Children With Evidence of Congenital Zika Virus Infection.

    Science.gov (United States)

    Pessoa, André; van der Linden, Vanessa; Yeargin-Allsopp, Marshalyn; Carvalho, Maria Durce Costa Gomes; Ribeiro, Erlane Marques; Van Naarden Braun, Kim; Durkin, Maureen S; Pastula, Daniel M; Moore, Jazmyn T; Moore, Cynthia A

    2018-02-01

    Initial reports of congenital Zika virus (ZIKV) infection focused on microcephaly at birth with severe brain anomalies; the phenotype has broadened to include microcephaly that develops after birth and neurodevelopmental sequelae. In this narrative review, we summarize medical literature describing motor abnormalities and epilepsy in infants with evidence of congenital ZIKV infection and provide information on the impact of these conditions. Specific scenarios are used to illustrate the complex clinical course in infants with abnormalities that are consistent with congenital Zika syndrome. A search of the English-language medical literature was done to identify motor abnormalities and epilepsy in infants with evidence of congenital ZIKV infection by using Medline and PubMed, Embase, Scientific Electronic Library Online, Scopus, the OpenGrey Repository, and the Grey Literature Report in Public Health. Search terms included "Zika" only and "Zika" in combination with any of the following terms: "epilepsy," "seizure," "motor," and "cerebral palsy." Clinical features of motor abnormalities and epilepsy in these children were reviewed. Thirty-six publications were identified; 8 were selected for further review. Among infants with clinical findings that are consistent with congenital Zika syndrome, 54% had epilepsy and 100% had motor abnormalities. In these infants, impairments that are consistent with diagnoses of cerebral palsy and epilepsy occur frequently. Pyramidal and extrapyramidal motor abnormalities were notable for their early development and co-occurrence. Prompt identification of potential disabilities enables early intervention to improve the quality of life for affected children. Long-term studies of developmental outcomes and interventions in children with congenital ZIKV infection are needed. Copyright © 2018 by the American Academy of Pediatrics.

  3. Occurrence studies of intracranial tumours

    Energy Technology Data Exchange (ETDEWEB)

    Larjavaara, S.

    2011-07-01

    Intracranial tumours are a histopathologically heterogeneous group of tumours. This thesis focused on three types of intracranial tumours; gliomas, meningiomas and vestibular schwannomas (VS). The main objectives of the dissertation were to estimate the occurrence of intracranial tumours by different subtypes, and to assess the validity and completeness of the cancer registry data. The specific aims of the publications were to evaluate the validity of reported incidence rates of meningioma cases, to describe the trends of VS incidence in four Nordic countries, and to define the anatomic distribution of gliomas and to investigate their location in relation to mobile phone use. Completeness of meningioma registration was examined by comparing five separate sources of information, and by defining the frequencies of cases reported to the Finnish Cancer Registry (FCR). Incidence trends of VS were assessed in the four Nordic countries over a twenty-one-year period (1987 - 2007) using cancer registry data. The anatomic site of gliomas was evaluated using both crude locations in the cerebral lobes and, in more detail, a three-dimensional (3D) distribution in the brain. In addition, a study on specific locations of gliomas in relation to the typical position of mobile phones was conducted using two separate approaches: a case-case and a case-specular analysis. The thesis was based on four sets of materials. Data from the international Interphone study were used for the studies on gliomas, while the two other studies were register-based. The dataset for meningiomas included meningioma cases from the FCR and four clinical data sources in Tampere University Hospital (neurosurgical clinic, pathology database, hospital discharge register and autopsy register). The data on VS were obtained from the national cancer registries of Denmark, Finland, Norway and Sweden. The coverage of meningiomas was not comprehensive in any of the data sources. The completeness of FCR was

  4. Abnormalities in Alternative Splicing of Apoptotic Genes and Cardiovascular Diseases

    Directory of Open Access Journals (Sweden)

    Zodwa Dlamini

    2015-11-01

    Full Text Available Apoptosis is required for normal heart development in the embryo, but has also been shown to be an important factor in the occurrence of heart disease. Alternative splicing of apoptotic genes is currently emerging as a diagnostic and therapeutic target for heart disease. This review addresses the involvement of abnormalities in alternative splicing of apoptotic genes in cardiac disorders including cardiomyopathy, myocardial ischemia and heart failure. Many pro-apoptotic members of the Bcl-2 family have alternatively spliced isoforms that lack important active domains. These isoforms can play a negative regulatory role by binding to and inhibiting the pro-apoptotic forms. Alternative splicing is observed to be increased in various cardiovascular diseases with the level of alternate transcripts increasing elevated in diseased hearts compared to healthy subjects. In many cases these isoforms appear to be the underlying cause of the disease, while in others they may be induced in response to cardiovascular pathologies. Regardless of this, the detection of alternate splicing events in the heart can serve as useful diagnostic or prognostic tools, while those splicing events that seem to play a causative role in cardiovascular disease make attractive future drug targets.

  5. Peripheral nerve abnormalities in pediatric patients with spinal muscular atrophy.

    Science.gov (United States)

    Yonekawa, Takahiro; Komaki, Hirofumi; Saito, Yuko; Sugai, Kenji; Sasaki, Masayuki

    2013-02-01

    We examined the specific nerve conduction deficits distinguishing spinal muscular atrophy (SMA) subtypes I and II. Five SMA I patients (age, 0.2-1.1 years) and 10 SMA II patients (age, 1.0-2.8 years) were examined. Patients were compared to age-matched controls for motor and sensory conduction velocity (MCV and SCV) changes, compound muscle and sensory nerve action potential amplitudes (CMAP and SNAP), and F-wave occurrence (FO). Slower MCVs were found in three of five SMA I patients; all five exhibited markedly decreased CMAP amplitudes. Tibial nerve CMAP amplitudes significantly reduced in SMA II patients (pnerve of SMA II patients (p=0.031). Loss of motor units may be widespread in the early stage of SMA I, while specific to the legs in young SMA II patients. SMA I showed sensory nerve degeneration, especially of large myelinated fibers. SMA II showed no sensory nerve abnormalities. Copyright © 2012 The Japanese Society of Child Neurology. Published by Elsevier B.V. All rights reserved.

  6. Electro-thermal Modeling of Modern Power Devices for Studying Abnormal Operating Conditions

    DEFF Research Database (Denmark)

    Wu, Rui

    In modern power electronic systems, there are increasing demands to improve the whole system endurance and safety level while reducing manufacturing and maintenance costs. Insulated Gate Bipolar Transistor (IGBT) power modules are the most widely used as well as most critical power devices...... in industrial power electronic systems in the range above 10 kW. The failure of IGBTs can be generally classified as catastrophic failures and wear out failures. A wear out failure is mainly induced by accumulated degradation with time, while a catastrophic failure is triggered by a single-event abnormal...... been given in Chapter 2. The failure mechanisms investigation suggests that the abnormal junction temperature or hot spots normally happen with the occurrence of failure. Practical challenges of predicting junction temperature during short circuit operations are also identified: a) electro...

  7. The Occurrence of Heamoproteuscolumbae in Pigeons ...

    African Journals Online (AJOL)

    The Occurrence of Heamoproteuscolumbae in Pigeons ( Columbidaelivia ) Based on Microscopy and PCR Based Method Analysis and Identification of New Lineage in the MalAvi Data Base in Kano State, Nigeria.

  8. [Application of TB type thermal balloon endometrial ablation for the treatment of abnormal uterine bleeding].

    Science.gov (United States)

    Wang, W; Zhai, Y; Zhang, Z H; Li, Y; Zhang, Z Y

    2016-11-08

    Objective: To investigate the clinical efficacy, safety and promotion value of TB type thermal balloon endometrial ablation in the treatment of abnormal uterine bleeding. Methods: Fourty three patients who had received TB type endometrial ablation system for treatment of abnormal uterine bleeding from January, 2015 to January, 2016 in theDepartment of gynecology, Beijing Chaoyang Hospital were enrolled in this study. The intra-operative and post-operative complications and improvement of abnormal uterine bleeding and dysmenorrhea were observed. Results: There were nointra-operative complication occurred, such as uterine perforation, massive hemorrhage or surrounding organ damage. At 6 months after operation, 32 patients developed amenorrhea, 6 developed menstrual spotting, 3 developed menstruation with a small volume and 1 had a normal menstruation. No menstruation with an increased volume occurred. The occurrence of amenorrhea was 76.19% and the response rate was 97.62%.At 6 months after operation, 1 case had no response, 2 cases had partial response and 11 cases had complete response among the 14 cases of pre-operative dysmenorrhea; only 3 cases still had anemia among the 23 cases of pre-operative anemia. Compared with before treatment, patients with dysmenorrhea and anemia both significantly reduced with a statistically significant difference( P abnormal uterine bleeding, which could have clinical promotion practice.

  9. Reclassification of cardiovascular risk by myocardial perfusion imaging in diabetic patients with abnormal resting electrocardiogram.

    Science.gov (United States)

    Petretta, M; Acampa, W; Evangelista, L; Daniele, S; Zampella, E; Assante, R; Nappi, C; Cantoni, V; Fiumara, G; Cuocolo, A

    2014-06-01

    Despite an extensive use of stress myocardial perfusion single-photon emission computed tomography (MPS), no study addressed the role of perfusion imaging in diabetic patients with abnormal resting electrocardiogram (ECG). We compared analytical approaches to assess the added value of stress MPS variables in estimating coronary heart disease outcomes in diabetic patients with abnormal resting ECG. A total of 416 patients with diabetes and abnormal resting ECG who underwent stress MPS were prospectively followed up after the index study. The end point was the occurrence of a major cardiac event, including cardiac death and nonfatal myocardial infarction. At the end of follow-up (median 58 months), 42 patients experienced events. MPS data increased the predictive value of a model including traditional cardiovascular risk factors and left ventricular (LV) ejection fraction (likelihood ratio χ² from 17.54 to 24.15, p patients were reclassified to a lower risk category, with a 5-year event rate of 3.5%, and 40 patients were reclassified to a higher risk category, with a 5-year event rate of 20%. The addition of MPS findings to a model based on traditional cardiovascular risk factors and LV ejection fraction improves risk classification for incident cardiac events in diabetic patients with abnormal resting ECG. Copyright © 2013 Elsevier B.V. All rights reserved.

  10. Occurrence and distribution of Indian primates

    Science.gov (United States)

    Karanth, K.K.; Nichols, J.D.; Hines, J.E.

    2010-01-01

    Global and regional species conservation efforts are hindered by poor distribution data and range maps. Many Indian primates face extinction, but assessments of population status are hindered by lack of reliable distribution data. We estimated the current occurrence and distribution of 15 Indian primates by applying occupancy models to field data from a country-wide survey of local experts. We modeled species occurrence in relation to ecological and social covariates (protected areas, landscape characteristics, and human influences), which we believe are critical to determining species occurrence in India. We found evidence that protected areas positively influence occurrence of seven species and for some species are their only refuge. We found evergreen forests to be more critical for some primates along with temperate and deciduous forests. Elevation negatively influenced occurrence of three species. Lower human population density was positively associated with occurrence of five species, and higher cultural tolerance was positively associated with occurrence of three species. We find that 11 primates occupy less than 15% of the total land area of India. Vulnerable primates with restricted ranges are Golden langur, Arunachal macaque, Pig-tailed macaque, stump-tailed macaque, Phayre's leaf monkey, Nilgiri langur and Lion-tailed macaque. Only Hanuman langur and rhesus macaque are widely distributed. We find occupancy modeling to be useful in determining species ranges, and in agreement with current species ranking and IUCN status. In landscapes where monitoring efforts require optimizing cost, effort and time, we used ecological and social covariates to reliably estimate species occurrence and focus species conservation efforts. ?? Elsevier Ltd.

  11. The 'time of occurrence' in quantum mechanics

    International Nuclear Information System (INIS)

    Srinivas, M.D.; Vijayalakshmi, R.

    1981-01-01

    Apart from serving as a parameter in describing the evolution of a system, time appears also as an observable property of a system in experiments where one measures 'the time of occurrence' of an event associated with the system. However, while the observables normally encountered in quantum theory (and characterized by self-adjoint operators or projection-valued measures) correspond to instantaneous measurements, a time of occurrence measurement involves continuous observations being performed on the system to monitor when the event occurs. It is argued that a time of occurrence observable should be represented by a positive-operator-valued measure on the interval over which the experiment is carried out. It is shown that while the requirement of time-translation invariance and the spectral condition rule out the possibility of a self-adjoint time operator (Pauli's theorem), they do allow for time of occurrence observables to be represented by suitable positive-operator-valued measures. It is also shown that the uncertainty in the time of occurrence of an event satisfies the time-energy uncertainty relation as a consequence of the time-translation invariance, only if the time of occurrence experiment is performed on the entire time axis. (author)

  12. Evolution of DWI signal abnormalities after transient ischemic attack and minor ischaemic stroke

    LENUS (Irish Health Repository)

    Merwick, A

    2011-05-01

    Background: Diffusion weighted imaging (DWI) signal abnormality after transient ischaemic attack (TIA) predicts early stroke, independently of other risk markers included in the ABCD3-I score. Early stroke recurrence detected on follow-up DWI after the acute-phase DWI may identify patients at high risk for subsequent clinicalstrokesstroke, cognitive impairment, and seizures. We aimed to determine the evolution of acute DWI lesions and rate of new ischaemic lesion (NIL) occurrence on follow-up DWI after TIA and minor stroke.\\r\

  13. Migraine and structural abnormalities in the brain

    DEFF Research Database (Denmark)

    Hougaard, Anders; Amin, Faisal Mohammad; Ashina, Messoud

    2014-01-01

    PURPOSE OF REVIEW: The aim is to provide an overview of recent studies of structural brain abnormalities in migraine and to discuss the potential clinical significance of their findings. RECENT FINDINGS: Brain structure continues to be a topic of extensive research in migraine. Despite advances...... in neuroimaging techniques, it is not yet clear if migraine is associated with grey matter changes. Recent large population-based studies sustain the notion of increased prevalence of white matter abnormalities in migraine, and possibly of silent infarct-like lesions. The clinical relevance of this association...... is not clear. Structural changes are not related to cognitive decline, but a link to an increased risk of stroke, especially in patients with aura, cannot be ruled out. SUMMARY: Migraine may be a risk factor for structural changes in the brain. It is not yet clear how factors such as migraine sub-type, attack...

  14. [Otoneurologic abnormalities in insulin-dependent diabetes].

    Science.gov (United States)

    Jáuregui-Renaud, K; Domínguez-Rubio, B; Ibarra-Olmos, A; González-Bárcena, D

    1998-01-01

    To assess the auditory and vestibular function in patients with diabetes. We studied and followed for three years, 10 patients (6 females) of 20.6 years of age (SD 5.5 years), with insulindependent diabetes mellitus of 9.5 years (SD 3.7 years). The patients were selected for having peripheral neuropathy without prolipherative retinopathy and otologic disease or individual factors which could cause neurootologic symptoms. Their glomerular filtration rate and renal plasma flow were 150 mL/min (SD 50) and 543 mL/min (SD 113). Initially all patients had normal audiologic responses, including auditory brainstem responses, but had abnormally and simetrically diminished horizontal vestibulo-ocular responses. A year later one patient had vertigo and asymmetric vestibulo-ocular responses. In the third year, another patient showed similar abnormalities and a third one showed sensorineural hearing loss. Our results suggest that patients with insulindependent diabetes mellitus may suffer neuro-otological deterioration.

  15. Chromosomal abnormalities in a psychiatric population

    Energy Technology Data Exchange (ETDEWEB)

    Lewis, K.E.; Lubetsky, M.J.; Wenger, S.L.; Steele, M.W. [Univ. of Pittsburgh Medical Center, PA (United States)

    1995-02-27

    Over a 3.5 year period of time, 345 patients hospitalized for psychiatric problems were evaluated cytogenetically. The patient population included 76% males and 94% children with a mean age of 12 years. The criteria for testing was an undiagnosed etiology for mental retardation and/or autism. Cytogenetic studies identified 11, or 3%, with abnormal karyotypes, including 4 fragile X positive individuals (2 males, 2 females), and 8 with chromosomal aneuploidy, rearrangements, or deletions. While individuals with chromosomal abnormalities do not demonstrate specific behavioral, psychiatric, or developmental problems relative to other psychiatric patients, our results demonstrate the need for an increased awareness to order chromosomal analysis and fragile X testing in those individuals who have combinations of behavioral/psychiatric, learning, communication, or cognitive disturbance. 5 refs., 1 fig., 2 tabs.

  16. Cardiovascular Abnormalities in Cirrhosis: the Possible Mechanisms

    Directory of Open Access Journals (Sweden)

    Leila Moezi

    2007-12-01

    Full Text Available Cirrhosis is characterized by marked abnormalities in the cardiovascular system. A hyperdynamic splanchnic and systemic circulation is typical of cirrhotic patients and has been observed in all experimental forms of portal hypertension. The hyperdynamic circulation is most likely initiated by arterial vasodilatation, leading to central hypovolemia, sodium retention, and an increased intravascular volume. Despite the baseline increase in cardiac output, ventricular inotropic and chronotropic responses to stimuli are blunted, a condition known as cirrhotic cardiomyopathy. This review briefly examines the major mechanisms that may underlie these cardiovascular abnormalities, concentrating on nitric oxide, endocannabinoids, prostaglandins, carbon monoxide, endogenous opioids, and adrenergic receptor changes. Future work should address the complex interrelationships between these systems.

  17. Selective mutism and abnormal electroencephalography (EEG) tracings.

    Science.gov (United States)

    Politi, Keren; Kivity, Sara; Goldberg-Stern, Hadassa; Halevi, Ayelet; Shuper, Avinoam

    2011-11-01

    Epileptic discharges are not considered a part of the clinical picture of selective mutism, and electroencephalography is generally not recommended in its work-up. This report describes 6 children with selective mutism who were found to have a history of epilepsy and abnormal interictal or subclinical electroencephalography recordings. Two of them had benign epilepsy of childhood with centro-temporal spikes. The mutism was not related in time to the presence of active seizures. While seizures could be controlled in all children by medications, the mutism resolved only in 1. Although the discharges could be coincidental, they might represent a co-morbidity of selective mutism or even play a role in its pathogenesis. Selective mutism should be listed among the psychiatric disorders that may be associated with electroencephalographic abnormalities. It can probably be regarded as a symptom of a more complicated organic brain disorder.

  18. Abnormal talk by a 14-year-old boy with hypersomnolence after a long-haul flight

    Science.gov (United States)

    Hurwitz, Brian; Richardson, Joshua

    2010-01-01

    This case alerts readers to the occurrence of grammatical, nonsensical speech in a 14-year-old boy, an alarming symptom. Speech of this sort may be caused by serious medical conditions such as cerebral irritation and acute confusional states, but in this case it was most probably part of a sleepwalking episode associated with jetlag. Abnormal speech during sleepwalking has been described, but it is not well characterised. This report of somniloquy offers some descriptive phenomenology for such speech. PMID:22767364

  19. Dysglycemia induces abnormal circadian blood pressure variability

    Directory of Open Access Journals (Sweden)

    Kumarasamy Sivarajan

    2011-11-01

    Full Text Available Abstract Background Prediabetes (PreDM in asymptomatic adults is associated with abnormal circadian blood pressure variability (abnormal CBPV. Hypothesis Systemic inflammation and glycemia influence circadian blood pressure variability. Methods Dahl salt-sensitive (S rats (n = 19 after weaning were fed either an American (AD or a standard (SD diet. The AD (high-glycemic-index, high-fat simulated customary human diet, provided daily overabundant calories which over time lead to body weight gain. The SD (low-glycemic-index, low-fat mirrored desirable balanced human diet for maintaining body weight. Body weight and serum concentrations for fasting glucose (FG, adipokines (leptin and adiponectin, and proinflammatory cytokines [monocyte chemoattractant protein-1 (MCP-1 and tumor necrosis factor-α (TNF-α] were measured. Rats were surgically implanted with C40 transmitters and blood pressure (BP-both systolic; SBP and diastolic; DBP and heart rate (HR were recorded by telemetry every 5 minutes during both sleep (day and active (night periods. Pulse pressure (PP was calculated (PP = SBP-DBP. Results [mean(SEM]: The AD fed group displayed significant increase in body weight (after 90 days; p Conclusion These data validate our stated hypothesis that systemic inflammation and glycemia influence circadian blood pressure variability. This study, for the first time, demonstrates a cause and effect relationship between caloric excess, enhanced systemic inflammation, dysglycemia, loss of blood pressure control and abnormal CBPV. Our results provide the fundamental basis for examining the relationship between dysglycemia and perturbation of the underlying mechanisms (adipose tissue dysfunction induced local and systemic inflammation, insulin resistance and alteration of adipose tissue precursors for the renin-aldosterone-angiotensin system which generate abnormal CBPV.

  20. Computed tomography in abnormalities of the hip

    Energy Technology Data Exchange (ETDEWEB)

    Visser, J.D.; Jonkers, A.; Klasen, H.J. (Rijksuniversiteit Groningen (Netherlands). Academisch Ziekenhuis); Hillen, B. (Rijksuniversiteit Groningen (Netherlands). Lab. voor Anatomie en Embryologie)

    1982-06-26

    The value of computed tomography in the assessment of abnormalities of the hip is demonstrated with the aid of an anatomical preparation and in patients with, respectively, congenital dislocation of a hip, dislocation of the hip in spina bifida, an acetabular fracture and a Ewing tumour. The anteversion of the acetabulum and femur and the instability index of the hip joint can be measured by means of computed tomography.

  1. Renal abnormalities in congenital chloride diarrhea

    International Nuclear Information System (INIS)

    Al-Hamad, Nadia M.; Al-Eisa, Amal A.

    2004-01-01

    Congenital chloride diarrhea CLD is a rare autosomal recessive disorder caused by a defect in the chloride/ bicarbonate exchange in the ileum and colon. It is characterized by watery diarrhea, abdominal distension, hypochloremic hypokalemic metabolic alkalosis with high fecal content of chloride >90 mmol/l. We report 3 patients with CLD associated with various renal abnormalities including chronic renal failure secondary to renal hypoplasia, nephrocalcinosis and congenital nephrotic syndrome. (author)

  2. Visual assessment of early emphysema and interstitial abnormalities on CT is useful in lung cancer risk analysis

    Energy Technology Data Exchange (ETDEWEB)

    Wille, Mathilde M.W.; Dirksen, Asger; Shaker, Saher B. [Gentofte Hospital, Department of Respiratory Medicine, Hellerup (Denmark); Thomsen, Laura H. [Hvidovre Hospital, Department of Respiratory Medicine, Hvidovre (Denmark); Petersen, Jens [University of Copenhagen, Department of Computer Science, DIKU, Koebenhavn Oe (Denmark); Bruijne, Marleen de [University of Copenhagen, Department of Computer Science, DIKU, Koebenhavn Oe (Denmark); Erasmus MC -University Medical Center Rotterdam, Biomedical Imaging Group Rotterdam, Departments of Radiology and Medical Informatics, Rotterdam (Netherlands); Pedersen, Jesper H. [Copenhagen University Hospital, Department of Thoracic Surgery, Rigshospitalet, Koebenhavn Oe (Denmark)

    2016-02-15

    Screening for lung cancer should be limited to a high-risk-population, and abnormalities in low-dose computed tomography (CT) screening images may be relevant for predicting the risk of lung cancer. Our aims were to compare the occurrence of visually detected emphysema and interstitial abnormalities in subjects with and without lung cancer in a screening population of smokers. Low-dose chest CT examinations (baseline and latest possible) of 1990 participants from The Danish Lung Cancer Screening Trial were independently evaluated by two observers who scored emphysema and interstitial abnormalities. Emphysema (lung density) was also measured quantitatively. Emphysema was seen more frequently and its extent was greater among participants with lung cancer on baseline (odds ratio (OR), 1.8, p = 0.017 and p = 0.002) and late examinations (OR 2.6, p < 0.001 and p < 0.001). No significant difference was found using quantitative measurements. Interstitial abnormalities were more common findings among participants with lung cancer (OR 5.1, p < 0.001 and OR 4.5, p < 0.001).There was no association between presence of emphysema and presence of interstitial abnormalities (OR 0.75, p = 0.499). Even early signs of emphysema and interstitial abnormalities are associated with lung cancer. Quantitative measurements of emphysema - regardless of type - do not show the same association. (orig.)

  3. Long-Term Evaluation of Abnormal Behavior in Adult Ex-laboratory Chimpanzees (Pan troglodytes Following Re-socialization

    Directory of Open Access Journals (Sweden)

    Karl Crailsheim

    2013-01-01

    Full Text Available Adverse rearing conditions are considered a major factor in the development of abnormal behavior. We investigated the overall levels, the prevalence and the diversity of abnormal behavior of 18 adult former laboratory chimpanzees, who spent about 20 years single caged, over a two-year period following re-socialization. According to the onset of deprivation, the individuals were classified as early deprived (EDs, mean: 1.2 years or late deprived (LDs, mean: 3.6 years. The results are based on 187.5 hours of scan sampling distributed over three sample periods: subsequent to re-socialization and during the first and second year of group-living. While the overall levels and the diversity of abnormal behavior remained stable over time in this study population, the amplifying effects of age at onset of deprivation became apparent as the overall levels of abnormal behavior of EDs were far above those of LDs in the first and second year of group-living, but not immediately after re-socialization. The most prevalent abnormal behaviors, including eating disorders and self-directed behaviors, however, varied in their occurrence within subjects across the periods. Most important, the significance of social companionship became obvious as the most severe forms of abnormal behavior, such as dissociative and self-injurious behaviors declined.

  4. [Nutritional abnormalities in chronic obstructive pulmonary disease].

    Science.gov (United States)

    Gea, Joaquim; Martínez-Llorens, Juana; Barreiro, Esther

    2014-07-22

    Nutritional abnormalities are associated with chronic obstructive pulmonary disease with a frequency ranging from 2 to 50%, depending on the geographical area and the study design. Diagnostic tools include anthropometry, bioelectrical impedance, dual energy radioabsortiometry and deuterium dilution, being the body mass and the lean mass indices the most frequently used parameters. While the most important consequences of nutritional abnormalities are muscle dysfunction and exercise limitation, factors implicated include an imbalance between caloric intake and consumption, and between anabolic and catabolic hormones, inflammation, tobacco smoking, poor physical activity, hypoxemia, some drugs and aging/comorbidities. The most important molecular mechanism for malnutrition associated with chronic obstructive pulmonary disease appears to be the mismatching between protein synthesis and breakdown. Among the therapeutic measures proposed for these nutritional abnormalities are improvements in lifestyle and nutritional support, although the use of anabolic drugs (such as secretagogues of the growth hormone) offers a new therapeutic strategy. Copyright © 2013 Elsevier España, S.L. All rights reserved.

  5. Content difference between normal and abnormal obsessions.

    Science.gov (United States)

    Rassin, Eric; Cougle, Jesse R; Muris, Peter

    2007-11-01

    Although it has long been thought that experiencing an obsession is a psychiatric symptom, more recent literature, has seen the normalisation of obsessions and other presumably clinical phenomena. That is, not only people suffering from psychiatric disorders experience obsessions but non-clinical individuals also do so. Furthermore, it has been argued that such normal obsessions are very similar to abnormal ones, in terms of content. However, in the present study, evidence was obtained indicating that normal and abnormal obsessions do differ in content. A sample of 133 healthy undergraduates was given a list of 70 obsessions, with some originating from obsessive-compulsive disorder (OCD) patients, and others stemming from healthy volunteers. Participants were asked to indicate whether they had ever experienced these obsessions. Participants endorsed significantly more normal than abnormal obsessions, suggesting that the two kinds of obsessions do differ from each other. In addition, the experience of clinical obsessions was more strongly associated with scores on a measure of OCD symptoms, than was the experience of normal obsessions.

  6. Abnormal Activity Detection Using Pyroelectric Infrared Sensors

    Directory of Open Access Journals (Sweden)

    Xiaomu Luo

    2016-06-01

    Full Text Available Healthy aging is one of the most important social issues. In this paper, we propose a method for abnormal activity detection without any manual labeling of the training samples. By leveraging the Field of View (FOV modulation, the spatio-temporal characteristic of human activity is encoded into low-dimension data stream generated by the ceiling-mounted Pyroelectric Infrared (PIR sensors. The similarity between normal training samples are measured based on Kullback-Leibler (KL divergence of each pair of them. The natural clustering of normal activities is discovered through a self-tuning spectral clustering algorithm with unsupervised model selection on the eigenvectors of a modified similarity matrix. Hidden Markov Models (HMMs are employed to model each cluster of normal activities and form feature vectors. One-Class Support Vector Machines (OSVMs are used to profile the normal activities and detect abnormal activities. To validate the efficacy of our method, we conducted experiments in real indoor environments. The encouraging results show that our method is able to detect abnormal activities given only the normal training samples, which aims to avoid the laborious and inconsistent data labeling process.

  7. Recurrent Cytogenetic Abnormalities in Acute Myeloid Leukemia.

    Science.gov (United States)

    Yang, John J; Park, Tae Sung; Wan, Thomas S K

    2017-01-01

    The spectrum of chromosomal abnormality associated with leukemogenesis of acute myeloid leukemia (AML) is broad and heterogeneous when compared to chronic myeloid leukemia and other myeloid neoplasms. Recurrent chromosomal translocations such as t(8;21), t(15;17), and inv(16) are frequently detected, but hundreds of other uncommon chromosomal aberrations from AML also exist. This chapter discusses 22 chromosomal abnormalities that are common structural, numerical aberrations, and other important but infrequent (less than 1 %) translocations emphasized in the WHO classification. Brief morphologic, cytogenetic, and clinical characteristics are summarized, so as to provide a concise reference to cancer cytogenetic laboratories. Morphology based on FAB classification is used together with the current WHO classification due to frequent mentioning in a vast number of reference literatures. Characteristic chromosomal aberrations of other myeloid neoplasms such as myelodysplastic syndrome and myeloproliferative neoplasm will be discussed in separate chapters-except for certain abnormalities such as t(9;22) in de novo AML. Gene mutations detected in normal karyotype AML by cutting edge next generation sequencing technology are also briefly mentioned.

  8. Spermatogenesis Abnormalities following Hormonal Therapy in Transwomen

    Directory of Open Access Journals (Sweden)

    Sirachai Jindarak

    2018-01-01

    Full Text Available Objective. To measure spermatogenesis abnormalities in transwomen at the time of sex reassignment surgery (SRS and to analyze the association between hormonal therapy duration and infertility severity. Design. Retrospective study. Setting. University hospital. Patients. One-hundred seventy-three transwomen who underwent SRS from January 2000 to December 2015. Interventions. All orchidectomy specimens were retrospectively reviewed and classified. History of hormonal therapy duration was retrieved from medical records. Main Outcome Measures. Histological examinations of orchidectomy specimens were performed to assess spermatogenesis. Results. One-hundred seventy-three orchidectomy specimens were evaluated. Histological examinations showed maturation arrest in 36.4%, hypospermatogenesis in 26%, Sertoli cell-only syndrome in 20.2%, normal spermatogenesis in 11%, and seminiferous tubule hyalinization in 6.4% of the specimens. Spermatogenesis abnormality severity was not associated with the total therapy duration (P=0.81 or patient age at the time of surgery (P=0.88. Testicular volumes and sizes were associated with spermatogenesis abnormality severity (P=0.001 and P=0.026, right testicle and left testicle, resp.. Conclusion(s. Feminizing hormonal treatment leads to reductions in testicular germ cell levels. All transwomen should be warned about this consequence, and gamete preservation should be offered before starting hormonal treatment.

  9. Congenital abnormalities associated with hemivertebrae in relation to hemivertebrae location.

    Science.gov (United States)

    Bollini, Gerard; Launay, Franck; Docquier, Pierre-Louis; Viehweger, Elke; Jouve, Jean-Luc

    2010-01-01

    Numerous congenital abnormalities have been reported in association with hemivertebrae (HV). No data exist about their incidence depending on the location of the HV. From 1980 to 2003, 75 patients with 80 HV responsible for evolutive congenital scoliosis were managed by HV resection using a double approach and short anterior and posterior convex fusion. The associated abnormalities were evaluated with MRI, echocardiography and renal ultrasound. Associated genitourinary abnormalities were found in 24% of patients, cardiac abnormalities in 8% and intrathecal abnormalities in 15%. Medullar abnormalities were more frequent in case of vertebral malformations at lumbosacral level.

  10. Abnormal uterine artery Doppler velocimetry predicts adverse outcomes in patients with abnormal analytes.

    Science.gov (United States)

    Roeder, Hilary A; Dejbakhsh, Sheila Z; Parast, Mana M; Laurent, Louise C; Woelkers, Douglas A

    2014-10-01

    Our aim was to determine if uterine artery (UtA) Doppler studies would risk-stratify women with abnormal serum analytes on prenatal genetic screening into those at baseline and increased risk for preeclampsia and small-for-gestational age (SGA). This retrospective cohort study examined outcomes of patients with ⩾one abnormal analyte (PAPP-A3.0, AFP>2.5, inhibin>2.0, or unconjugated estriolUtA pulsatility index (PI). Preeclampsia, preterm preeclampsia, SGA (birthweight (BW) one abnormal analyte, UtA Doppler screening, and delivery outcomes. Twenty-four (18%) had an elevated UtA PI (PI>1.6); preeclampsia occurred in 16 (12%) and 26 (20%) delivered a SGA neonate. Abnormal UtA Doppler PI increased the likelihood of a composite outcome of preeclampsia or SGA from 27% to 71% (LR 6.48 (2.93, 14.30)); a negative UtA Doppler PI reduced the likelihood to 18% (LR 0.57 (0.42, 0.78)). Abnormal UtA Doppler PI increased the likelihood of a more severe composite outcome of preterm preeclampsia or IUGR from 11% to 39% (LR 5.49 (3.03, 9.97)); a negative UtA Doppler study reduced the likelihood to 4% (LR 0.35 (0.16, 0.80)). In patients with abnormal serum analytes, abnormal UtA Doppler PI is significantly associated with preeclampsia or SGA and improves the prediction of these adverse outcomes by 9-15-fold. Providers can incorporate UtA Doppler PI into an abbreviated surveillance regimen; they can be reassured that a normal study markedly decreases the risk of a severe early adverse outcome. Copyright © 2014 International Society for the Study of Hypertension in Pregnancy. Published by Elsevier B.V. All rights reserved.

  11. Diurnal and seasonal occurrence of polar patches

    Directory of Open Access Journals (Sweden)

    A. S. Rodger

    1996-05-01

    Full Text Available Analysis of the diurnal and seasonal variation of polar patches, as identified in two years of HF-radar data from Halley, Antarctica during a period near sunspot maximum, shows that there is a broad maximum in occurrence centred about magnetic noon, not local noon. There are minima in occurrence near midsummer and midwinter, with maxima in occurrence between equinox and winter. There are no significant correlations between the occurrence of polar patches and the corresponding hourly averages of the solar wind and IMF parameters, except that patches usually occur when the interplanetary magnetic field has a southward component. The results can be understood in terms of UT and seasonal differences in the plasma concentration being convected from the dayside ionosphere into the polar cap. In summer and winter the electron concentrations in the polar cap are high and low, respectively, but relatively unstructured. About equinox, a tongue of enhanced ionisation is convected into the polar cap; this tongue is then structured by the effects of the interplanetary magnetic field, but these Halley data cannot be used to separate the various competing mechanisms for patch formation. The observed diurnal and seasonal variation in the occurrence of polar patches are largely consistent with predictions of Sojka et al. (1994 when their results are translated into the southern hemisphere. However, the ionospheric effects of flux transfer events are still considered essential in their formation, a feature not yet included in the Sojka et al. model.

  12. Mining High Utility Itemsets with Regular Occurrence

    Directory of Open Access Journals (Sweden)

    Komate Amphawan

    2016-09-01

    Full Text Available High utility itemset mining (HUIM plays an important role in the data mining community and in a wide range of applications. For example, in retail business it is used for finding sets of sold products that give high profit, low cost, etc. These itemsets can help improve marketing strategies, make promotions/ advertisements, etc. However, since HUIM only considers utility values of items/itemsets, it may not be sufficient to observe product-buying behavior of customers such as information related to “regular purchases of sets of products having a high profit margin”. To address this issue, the occurrence behavior of itemsets (in the term of regularity simultaneously with their utility values was investigated. Then, the problem of mining high utility itemsets with regular occurrence (MHUIR to find sets of co-occurrence items with high utility values and regular occurrence in a database was considered. An efficient single-pass algorithm, called MHUIRA, was introduced. A new modified utility-list structure, called NUL, was designed to efficiently maintain utility values and occurrence information and to increase the efficiency of computing the utility of itemsets. Experimental studies on real and synthetic datasets and complexity analyses are provided to show the efficiency of MHUIRA combined with NUL in terms of time and space usage for mining interesting itemsets based on regularity and utility constraints.

  13. Abnormality of Auricular Muscles in Congenital Auricular Deformities.

    Science.gov (United States)

    Yotsuyanagi, Takatoshi; Yamauchi, Makoto; Yamashita, Ken; Sugai, Asuka; Gonda, Ayako; Kitada, Ayaka; Saito, Tamotsu; Urushidate, Satoshi

    2015-07-01

    It has been suggested that there is a close association of abnormality in auricular muscles with various congenital auricular deformities. However, there has been no investigation to determine what muscles are involved and how they affect the deformity. The authors examined abnormalities of auricular muscles for patients with various auricular deformities. The authors examined 77 auricles of 62 patients with congenital auricular deformities, including cryptotia, Stahl's ear, prominent ear, lop ear, and others. The superior and posterior auricular muscles from the extrinsic auricular muscle group and the auricular oblique and transverse muscles from the auricular intrinsic muscle group were investigated. The authors found characteristic features of the abnormality of the muscle for each auricular deformity. In nearly all cases of cryptotia, abnormality was found in the superior auricular, auricular oblique, and auricular transverse muscles. Abnormal insertion was found mainly in the superior auricular muscle and was the main cause of cryptotia. In Stahl's ear, the major abnormality was abnormal insertion of the auricular transverse muscle, which creates an abnormal cartilaginous prominence in the scapha. The abnormality in cases of prominent ear was clearly limited mostly to the auricular transverse muscle and, in some cases, to the posterior auricular muscle. In lop ear, abnormality was mostly found in the auricular transverse muscle, with elongation, and in the superior auricular or auricular oblique muscle in some cases. There is a tendency for a specific muscle abnormality to be found in each deformity. It is important to identify the abnormal muscle and correct the abnormality during the operation.

  14. Limitations in global information on species occurrences

    Directory of Open Access Journals (Sweden)

    Carsten Meyer

    2016-07-01

    Full Text Available Detailed information on species distributions is crucial for answering central questions in biogeography, ecology, evolutionary biology and conservation. Millions of species occurrence records have been mobilized via international data-sharing networks, but inherent biases, gaps and uncertainties hamper broader application. In my PhD thesis, I presented the first comprehensive analyses of global patterns and drivers of these limitations across different taxonomic groups and spatial scales. Integrating 300 million occurrence records for terrestrial vertebrates and plants with comprehensive taxonomic databases, expert range maps and regional checklists, I demonstrated extensive taxonomic, geographical and temporal biases, gaps and uncertainties. I identified key socio-economic drivers of data bias across different taxonomic groups and spatial scales. The results of my dissertation provide an empirical baseline for effectively accounting for data limitations in distribution models, as well as for prioritizing and monitoring efforts to collate additional occurrence information.

  15. Micronuclei and other erythrocyte nuclear abnormalities in fishes from the Great Lakes Basin, USA.

    Science.gov (United States)

    Braham, Ryan P; Blazer, Vicki S; Shaw, Cassidy H; Mazik, Patricia M

    2017-10-01

    Biological markers (biomarkers) sensitive to genotoxic and mutagenic contamination in fishes are widely used to identify exposure effects in aquatic environments. The micronucleus assay was incorporated into a suite of indicators to assess exposure to genotoxic and mutagenic contamination at five Great Lakes Areas of Concern (AOCs), as well as one non-AOC (reference) site. The assay allowed enumeration of micronuclei as well as other nuclear abnormalities for both site and species comparisons. Erythrocyte abnormality data was also compared to skin and liver tumor prevalence and hepatic transcript abundance. Erythrocyte abnormalities were observed at all sites with variable occurrence and severity among sites and species. Benthic-oriented brown bullhead (Ameiurus nebulosus) and white sucker (Catostomus commersonii) expressed lower rates of erythrocyte abnormalities, but higher rates of skin and liver neoplasms, when compared to pelagic-oriented largemouth bass (Micropterus salmoides) or smallmouth bass (Micropterus dolomieu) at the same site. The reduced erythrocyte abnormalities, increased transcript abundance associated with Phase I and II toxicant responsive pathways, and increased neoplastic lesions among benthic-oriented taxa may indicate the development of contaminant resistance of these species to more acute effects. Environ. Mol. Mutagen. 58:570-581, 2017. © 2017 This article is a U.S. Government work and is in the public domain in the USA. Environmental and Molecular Mutagenesis published by Wiley Periodicals, Inc. on behalf of Environmental Mutagen Society. © 2017 This article is a U.S. Government work and is in the public domain in the USA. Environmental and Molecular Mutagenesis published by Wiley Periodicals, Inc. on behalf of Environmental Mutagen Society.

  16. An explorative, cross-sectional study into abnormal muscular coupling during reach in chronic stroke patients

    Directory of Open Access Journals (Sweden)

    Stienen Arno HA

    2010-03-01

    Full Text Available Abstract Background In many stroke patients arm function is limited, which can be related to an abnormal coupling between shoulder and elbow joints. The extent to which this can be translated to activities of daily life (ADL, in terms of muscle activation during ADL-like movements, is rather unknown. Therefore, the present study examined the occurrence of abnormal coupling on functional, ADL-like reaching movements of chronic stroke patients by comparison with healthy persons. Methods Upward multi-joint reaching movements (20 repetitions at a self-selected speed to resemble ADL were compared in two conditions: once facilitated by arm weight compensation and once resisted to provoke a potential abnormal coupling. Changes in movement performance (joint angles and muscle activation (amplitude of activity and co-activation between conditions were compared between healthy persons and stroke patients using a repeated measures ANOVA. Results The present study showed slight changes in joint excursion and muscle activation of stroke patients due to shoulder elevation resistance during functional reach. Remarkably, in healthy persons similar changes were observed. Even the results of a sub-group of the more impaired stroke patients did not point to an abnormal coupling between shoulder elevation and elbow flexion during functional reach. Conclusions The present findings suggest that in mildly and moderately affected chronic stroke patients ADL-like arm movements are not substantially affected by abnormal synergistic coupling. In this case, it is implied that other major contributors to limitations in functional use of the arm should be identified and targeted individually in rehabilitation, to improve use of the arm in activities of daily living.

  17. Multidimensional analysis of the abnormal neural oscillations associated with lexical processing in schizophrenia.

    Science.gov (United States)

    Xu, Tingting; Stephane, Massoud; Parhi, Keshab K

    2013-04-01

    The neural mechanisms of language abnormalities, the core symptoms in schizophrenia, remain unclear. In this study, a new experimental paradigm, combining magnetoencephalography (MEG) techniques and machine intelligence methodologies, was designed to gain knowledge about the frequency, brain location, and time of occurrence of the neural oscillations that are associated with lexical processing in schizophrenia. The 248-channel MEG recordings were obtained from 12 patients with schizophrenia and 10 healthy controls, during a lexical processing task, where the patients discriminated correct from incorrect lexical stimuli that were visually presented. Event-related desynchronization/synchronization (ERD/ERS) was computed along the frequency, time, and space dimensions combined, that resulted in a large spectral-spatial-temporal ERD/ERS feature set. Machine intelligence techniques were then applied to select a small subset of oscillation patterns that are abnormal in patients with schizophrenia, according to their discriminating power in patient and control classification. Patients with schizophrenia showed abnormal ERD/ERS patterns during both lexical encoding and post-encoding periods. The top-ranked features were located at the occipital and left frontal-temporal areas, and covered a wide frequency range, including δ (1-4 Hz), α (8-12 Hz), β (12-32 Hz), and γ (32-48 Hz) bands. These top features could discriminate the patient group from the control group with 90.91% high accuracy, which demonstrates significant brain oscillation abnormalities in patients with schizophrenia at the specific frequency, time, and brain location indicated by these top features. As neural oscillation abnormality may be due to the mechanisms of the disease, the spectral, spatial, and temporal content of the discriminating features can offer useful information for helping understand the physiological basis of the language disorder in schizophrenia, as well as the pathology of the

  18. MRI study on urinary abnormalities of fetus

    International Nuclear Information System (INIS)

    Liu Ming; Zhang Yuzhen; Wang Qiuyan; Zhang Zhongyang; Li Yuhua

    2007-01-01

    Objective: To illustrate the important complemental function of MRI in dignosing the urinary abnormalities of the fetus by analyzing MR features. Methods: MRI findings in 34 fetal urinary abnormalities were retrospectively analyzed. Results: Upper urinary tract dilatation was found in 12 cases: one case presented obstructed right renal dysplasia and was on the follow-up, postnatal MR imaging proved the duplex anomaly in one case, one case showed left PUJO on postnatal US imaging and prepared to surgery, 7 cases were normal on postnatal US imaging, 2 cases were lost to follow up. Bilateral urinary anomalies were found in 7 cases: Muhicystic renal dysplasia (n=3), Combined horseshoe kidney in 2 fetuses and bilateral renal aplasia in one case. Bilateral renal dysplasia was diagnosed in 2 cases, one was still bom and proved by autopsy and the other was lost to follow up. The case of bilateral renal agenesis displayed the appearance of sirenomelia on general specimen. The case of right renal agenesis associated contralateral kidney dyspalsia (n=1) was lost to follow up. MR imaging showed low signal intensity of lung and oligohydramnios in the bilateral anomalies. Unilateral urinary anomalies was found in 15 cases, including 9 cases of unilateral renal dysplasia. Two fetuses were aborted and 3 fetuses were proved with postnatal US or MR. One was lost to follow up; 3 cases were on the follow-up. There were 4 cases of unilateral renal agenesis, two fetuses were aborted and 2 fetuses were proved with postnatal US or MR imaging. The case of ectopic kidney was proved with postnatal US imaging. One case of urachal cyst was aborted without autopsy. In the unilateral anomalies, the volume of amniotic fluid was normal, and the fetal lung presented homogenious high signal intensity. Conclusion: As a complemental method, MRI is of great value in displaying and dignosing the urinary abnormalities of fetus. (authors)

  19. Remnants of occipital vertebrae: proatlas segmentation abnormalities.

    Science.gov (United States)

    Menezes, Arnold H; Fenoy, Kathleen A

    2009-05-01

    Developmental remnants around the foramen magnum, or proatlas segmentation abnormalities, have been recorded in postmortem studies but very rarely in a clinical setting. Because of their rarity, the pathological anatomy has been misunderstood, and treatment has been fraught with failures. The objectives of this prospective study were to understand the correlative anatomy, pathology, and embryology and to recognize the clinical presentation and gain insights on the treatment and management. Our craniovertebral junction (CVJ) database started in 1977 and comprises 5200 cases. This prospective study has retrieval capabilities. Neurodiagnostic studies changed with the evolution of imaging. Seventy-two patients were recognized as having symptomatic proatlas segmentation abnormalities. Ventral bony masses from the clivus or medial occipital condyle occurred in 66% (44/72), lateral or anterolateral compressive masses in 37% (27 of 72 patients), and dorsal bony compression in 17% (12 of 72 patients). Hindbrain herniation was associated in 33%. The age at presentation was 3 to 23 years. Motor symptoms occurred in 72% (52 of 72 patients); palsies in Cranial Nerves IX, X, and XII in 33% (24 of 72 patients); and vertebrobasilar symptoms in 25% (18 of 72 patients). Trauma precipitated symptoms in 55% (40 of 72 patients). The best definition of the abnormality was demonstrated by 3-dimensional computed tomography combined with magnetic resonance imaging. Treatment was aimed at decompression of the pathology and stabilization. Remnants of the occipital vertebrae around the foramen magnum were recognized in 72 of 5200 CVJ cases (7.2%). Magnetic resonance imaging with 3-dimensional computed tomography of the CVJ provides the best definition and understanding of the lesions. Brainstem myelopathy and lower cranial nerve deficits are common clinical presentations in the first and second decades of life. Treatment is aimed at decompression of the pathology and CVJ stabilization.

  20. Haematological abnormalities in systemic lupus erythematosus.

    Science.gov (United States)

    Aleem, Aamer; Al Arfaj, Abdurahman Saud; khalil, Najma; Alarfaj, Husain

    2014-01-01

    This study was conducted to evaluate the frequency and pattern of haematological abnormalities (HA) in SLE patients at the time of diagnosis and last follow-up, and their relationship with organ involvement. This retrospective study included patients who were diagnosed and treated for SLE from 1982 to 2008 at King Khalid University hospital, Riyadh. Demographic and haematological parameters at diagnosis and the last follow-up, disease manifestations, organ involvement and clinical hematological complications were recorded. Association of HA with organ involvement was explored by multivariate analysis. A total of 624 patients (90.7% females, mean age 34.3±11.9 years) were studied. HA were present in 516 (82.7 %) patients at the time of diagnosis. Anemia was the most frequent HA in 63.0% patients followed by lymphopenia in 40.3%, leukopenia in 30.0%, thrombocytopenia in 10.9% and autoimmune hemolytic anemia (AIHA) in 4.6% patients. Deep vein thrombosis and pulmonary embolism were diagnosed in 7.4% and 2.6% patients respectively. After a mean follow-up of 9.3±5.3 years, 329/491 (67%) patients still had some HA present. Anemia remained the most common abnormality (51.7% patients) followed by lymphopenia in 33.1%, and thrombocytopenia in 4.8% patients. Leucopenia was associated with oral ulcers (p=0.021) and alopecia (p=0.031), anemia with renal disease (p=0.017), AIHA with neurological involvement (p=0.003), elevated IgG with malar rash (p=0.027), and low C3 with serositis (p=0.026). HA are very common at the time of diagnosis and during follow-up in SLE, and some of these abnormalities are associated with organ damage. This information may help in better management planning of SLE patients.

  1. Acute Radiological Abnormalities after Bronchial Thermoplasty: A Prospective Cohort Trial

    NARCIS (Netherlands)

    d'Hooghe, Julia N. S.; van den Berk, Inge A. H.; Annema, Jouke T.; Bonta, Peter I.

    2017-01-01

    Background: Bronchial thermoplasty (BT) is a novel treatment for severe asthma based on radiofrequency energy delivery to the larger airways. Although impressive radiological abnormalities have been reported, the incidence, pattern, and behavior over time of acute radiological abnormalities

  2. Comparisons of stomatal parameters between normal and abnormal ...

    African Journals Online (AJOL)

    ED), guard cell length (GCL) and guard cell width (GCW) of normal and abnormal leaf of Bougainvillea spectabilis Willd were studied. This can be useful for further research of physical mechanism of abnormal leaf. Epidermal cells were ...

  3. Abnormal brain activation in excoriation (skin-picking) disorder

    DEFF Research Database (Denmark)

    Odlaug, Brian L.; Hampshire, Adam; Chamberlain, Samuel R

    2016-01-01

    encompassing bilateral dorsal striatum (maximal in right caudate), bilateral anterior cingulate and right medial frontal regions. These abnormalities were, for the most part, outside the dorsal planning network typically activated by executive planning tasks. Conclusions: Abnormalities of neural regions...

  4. Phenotype abnormality: 41 [Arabidopsis Phenome Database[Archive

    Lifescience Database Archive (English)

    Full Text Available 41 http://metadb.riken.jp/db/SciNetS_ria224i/cria224u1ria224u547i abnormal for trait of behavioral...ganelle ... abnormal ... anatomical structure arrangement ... behavioral quality

  5. Phenotype abnormality: 38 [Arabidopsis Phenome Database[Archive

    Lifescience Database Archive (English)

    Full Text Available 38 http://metadb.riken.jp/db/SciNetS_ria224i/cria224u1ria224u544i abnormal for trait of behavioral...idermis ... abnormal ... anatomical structure arrangement ... behavioral quality

  6. Phenotype abnormality: 36 [Arabidopsis Phenome Database[Archive

    Lifescience Database Archive (English)

    Full Text Available 36 http://metadb.riken.jp/db/SciNetS_ria224i/cria224u1ria224u542i abnormal for trait of behavioral...tyledon ... abnormal ... anatomical structure arrangement ... behavioral quality

  7. Genetics Home Reference: X-linked lissencephaly with abnormal genitalia

    Science.gov (United States)

    ... agenesis) of the tissue connecting the left and right halves of the brain ( corpus callosum ). The brain abnormalities can cause severe intellectual disability and developmental delay, abnormal muscle stiffness (spasticity), weak ...

  8. Evidence of brain abnormality in patients with psychogenic nonepileptic seizures.

    NARCIS (Netherlands)

    Reuber, M.; Fernandez, G.S.E.; Bauer, J.; Singh, D.D.; Elger, C.E.

    2002-01-01

    Markers of brain abnormalities in patients with psychogenic nonepileptic seizures (PNES) were studied to explore whether physical brain disorder is associated with an increased risk of PNES. Evidence of epileptiform EEG changes, MRI abnormalities, and neuropsychological (NPS)

  9. Torpedo maculopathy: A primary choroidal capillary abnormality?

    Directory of Open Access Journals (Sweden)

    Rohan Chawla

    2018-01-01

    Full Text Available A 26-year-old healthy male patient's fundus revealed findings consistent with torpedo maculopathy. Swept-source optical coherence tomography (OCT showed a dome-shaped elevation of the retina at the level of ellipsoid zone. On OCT angiography segmented at the level of the choriocapillaris, a cluster of convoluted fine vessels was seen, and further, deeper scans of the larger choroidal vessels showed a slower flow. From these observations along with the embryological correlation of choriocapillaris development, a possibility of an abnormality preventing proper fenestration of the choriocapillaris along the horizontal raphe being responsible for this anomaly is suggested.

  10. MR imaging of cerebral abnormalities in utero.

    Science.gov (United States)

    Thickman, D; Mintz, M; Mennuti, M; Kressel, H Y

    1984-12-01

    In view of the lack of ionizing radiation, ability to image in a variety of planes, and high contrast resolution, magnetic resonance (MR) imaging may have a role in obstetrical management. Three fetuses with severe cerebral abnormalities were studied by MR in utero. The findings were correlated with ultrasound examinations and with autopsy results. Ventricular dilatation and progression of hydrocephalus were detected by MR. Although fetal motion may affect image quality, diagnostically useful images were obtained with imaging times of 2.5 min.

  11. Radiological and orthopedic abnormalities in Satoyoshi syndrome

    International Nuclear Information System (INIS)

    Haymon, M.L.; Willis, R.B.; Ehlayel, M.S.; Louisiana State Medical Center, New Orleans, LA; Lacassie, Y.; Louisiana State Medical Center, New Orleans, LA; Children's Hospital, New Orleans, LA

    1997-01-01

    Satoyoshi syndrome is a are disorder on unknown etiology characterized by progressive, painful intermittent muscle spasms, serve skeletal abnormalities mimicking a skeletal dyplasia, malabsorption, alopecia, and amenorrhea. We further report on a 20 1 / 2 -year-old Caucasian woman whith characteristic manifestation of the syndrome. Since the establishment of the diagnostic 1 year ago, she has been treated with prednisone with good response. However, treatment of the multiple deformities and fractures has been difficult and challenging. The early recognition and treatment of this disorder is of utmost importance, as the skeletal deformities and fractures seem to be secondary to the muscular spasms, as suggested by Satoyoshi

  12. Radiological and orthopedic abnormalities in Satoyoshi syndrome

    Energy Technology Data Exchange (ETDEWEB)

    Haymon, M.L. [Children`s Hospital, New Orleans, LA (United States). Dept. of Radiology; Willis, R.B. [Children`s Hospital, New Orleans, LA (United States). Dept. of Orthopedics; Ehlayel, M.S. [Div. of Genetics, Dept. of Pediatrics, Louisiana State Univ. Medical Center, Orleans, LA (United States)]|[Louisiana State Medical Center, New Orleans, LA (United States). Center for Molecular and Human Genetics; Lacassie, Y. [Div. of Genetics, Dept. of Pediatrics, Louisiana State Univ. Medical Center, Orleans, LA (United States)]|[Louisiana State Medical Center, New Orleans, LA (United States). Center for Molecular and Human Genetics]|[Children`s Hospital, New Orleans, LA (United States). Dept. of Pediatrics

    1997-05-01

    Satoyoshi syndrome is a are disorder on unknown etiology characterized by progressive, painful intermittent muscle spasms, serve skeletal abnormalities mimicking a skeletal dyplasia, malabsorption, alopecia, and amenorrhea. We further report on a 20{sup 1}/{sub 2}-year-old Caucasian woman whith characteristic manifestation of the syndrome. Since the establishment of the diagnostic 1 year ago, she has been treated with prednisone with good response. However, treatment of the multiple deformities and fractures has been difficult and challenging. The early recognition and treatment of this disorder is of utmost importance, as the skeletal deformities and fractures seem to be secondary to the muscular spasms, as suggested by Satoyoshi.

  13. Childhood autism and auditory system abnormalities.

    Science.gov (United States)

    Hitoglou, Magdalini; Ververi, Athina; Antoniadis, Alexandros; Zafeiriou, Dimitrios I

    2010-05-01

    Hearing disorders are common among children with autism, ranging from peripheral and sensorineural hearing deficit or loss to auditory hypersensitivity with bizarre reactions to sounds. The auditory abnormalities and consequent sensory deprivation exacerbate the communication deficit of autism, and early auditory assessment holds an important place in the planning of intervention and the overall prognosis of patients. Physiologic, pathologic, imaging, and neurochemical studies have revealed an array of aberrations in the perception and processing of the audiologic stimuli, including (among others) maturational defects, atypical lateralization, and serotonin dysfunction. Copyright 2010 Elsevier Inc. All rights reserved.

  14. Adverse Pregnancy Outcomes after Abnormal First Trimester Screening for Aneuploidy

    OpenAIRE

    Goetzl, Laura

    2010-01-01

    Women with abnormal first trimester screening but with a normal karyotype are at risk for adverse pregnancy outcomes. A nuchal translucency >3.5mm is associated with an increased risk of subsequent pregnancy loss, fetal infection, fetal heart abnormalities and other structural abnormalities. Abnormal first trimester analytes are also associated with adverse pregnancy outcomes but the predictive value is less impressive. As a single marker, PAPP-A

  15. Chromosomal Abnormalities Associated with Neural Tube Defects (I): Full Aneuploidy

    OpenAIRE

    Chih-Ping Chen

    2007-01-01

    Fetuses with neural tube defects (NTDs) carry a risk of chromosomal abnormalities. The risk varies with maternal age, gestational age at diagnosis, association with other structural abnormalities, and family history of chromosome aberrations. This article provides an overview of chromosomal abnormalities associated with NTDs in embryos, fetuses, and newborn patients, and a comprehensive review of numerical chromosomal abnormalities associated with NTDs, such as trisomy 18, trisomy 13, triploi...

  16. Abnormal animal behavior prior to the Vrancea (Romania) major subcrustal earthquakes

    Science.gov (United States)

    Constantin, Angela; Pantea, Aurelian

    2013-04-01

    The goal of this paper is to present some observations about abnormal animal behavior prior and during of some Romanian subcrustal earthquakes. The major Vrancea earthquakes of 4 March 1977 (Mw = 7.4, Imax = IX-X MSK), 30 August 1986 (Mw = 7.1, Io = VIII-IX MSK) and 30 May 1990 (Mw = 6.9, Io = VIII MSK), were preceded by extensive occurrences of anomalous animal behavior. These data were collected immediately after the earthquakes from the areas affected by these. Some species of animals became excited, nervous and panicked before and during the earthquakes, such as: dogs (barking and running in panic), cats, snakes, mice and rats (came into the houses and have lost their fear), birds (hens, geese, parrots), horses, fishes etc. These strange manifestations of the animals were observed on the entire territory of country, especially in the extra-Carpathian area. This unusual behavior was noticed within a few hours to days before the seismic events, but for the most of cases the time of occurrence was within two hours of the quakes. We can hope that maybe one day the abnormal animal behavior will be used as a reliable seismic precursor for the intermediate depth earthquakes.

  17. An unusual case of non-syndromic occurrence of multiple dental anomalies

    Directory of Open Access Journals (Sweden)

    Suprabha B

    2009-01-01

    Full Text Available Dental anomalies have been known to occur in humans due to a variety of genetic and environmental factors. Combinations of dental anomalies are known to be associated with specific syndromes. A few cases of multiple dental anomalies have been reported in patients with no generalized abnormalities. This case report describes an unusual occurrence of a combination of dental anomalies in an apparently normal healthy 12-year-old female patient. The dental anomalies in this patient were multiple dens invaginatus, generalized enamel hypoplasia, generalized microdontia, root resorption and multiple periapical lesions, shovel shaped incisors, cup shaped premolars, taurodontism, hypodontia and supernumerary teeth.

  18. Tibiofemoral angle and its relation to ankle sprain occurrence.

    Science.gov (United States)

    Pefanis, Nikolaos; Karagounis, Panagiotis; Tsiganos, Georgios; Armenis, Elias; Baltopoulos, Panagiotis

    2009-12-01

    The lack of a normal joint orientation generates translational or shear forces across the joint. These forces can put abnormally high strain on the cartilage and the surrounding capsuloligamentous tissues. Ankle joint structure can affect or be affected by bony malformations of the surrounding areas, including the knee and hip. The aim of the current study is to examine the possible relationship between the tibiofemoral (TFA) angle and other factors (anthropometric characteristics, medical history, and age) on the occurrence of ankle sprains because its value provides useful information for the anatomical alignment of the lower extremity. The study sample consisted of 45 high-level athletes, evenly distributed among 3 sports (basketball, soccer, and volleyball). TFA measurements were made on radiographs. The study lasted 2 years. A logistic regression was used to determine the importance of each factor on the probability in question. A significance level of P = .1 was used. The factors contributing more to an ankle sprain were a previous injury of the same type followed by body mass index (BMI) and age. On the contrary, TFA was proven to be statistically nonsignificant. When the BMI variable was substituted with body inertia propensity, a derived variable, the TFA remained statistically nonsignificant. TFA magnitude does not seem to be a determinant factor that could increase the probability of spraining an ankle.

  19. Prevalence of cervical cytology abnormalities among HIV infected ...

    African Journals Online (AJOL)

    Objectives: To establish the prevalence of cervical cytology abnormalities, determine the correlation between CD4+ cell count and abnormal Pap smear, determine the correlation between WHO-HIV staging and abnormal pap smear among HIV infected women attending HIV clinic at Rwanda Military Hospital. Design: ...

  20. Abnormal Behavior in Relation to Cage Size in Rhesus Monkeys

    Science.gov (United States)

    Paulk, H. H.; And Others

    1977-01-01

    Examines the effects of cage size on stereotyped and normal locomotion and on other abnormal behaviors in singly caged animals, whether observed abnormal behaviors tend to co-occur, and if the development of an abnormal behavior repertoire leads to reduction in the number of normal behavior categories. (Author/RK)

  1. Abnormally large magnetospheric electric field on 9 November 2004 ...

    Indian Academy of Sciences (India)

    There was a solar event around 1850 UT on 9th November 2004, associated with an abnormally large solar wind flow pressure and large southward interplanetary magnetic field, causing an abnormally large prompt penetration electric field between 1850 and 2100 UT. Abnormally large vertical F-region drifts by Jicamarca ...

  2. ECG classification and abnormality detection using cascade forward ...

    African Journals Online (AJOL)

    This paper describes the use of MATLAB based artificial neural network tools for ECG analysis for finding out whether the ECG is normal or abnormal and if it is abnormal, what is the abnormality. There are various arrhythmia like Ventricular premature beats, asystole, couplet, bigeminy, fusion beats etc. To classify this,

  3. DNA methylation abnormalities in congenital heart disease.

    Science.gov (United States)

    Serra-Juhé, Clara; Cuscó, Ivon; Homs, Aïda; Flores, Raquel; Torán, Núria; Pérez-Jurado, Luis A

    2015-01-01

    Congenital heart defects represent the most common malformation at birth, occurring also in ∼50% of individuals with Down syndrome. Congenital heart defects are thought to have multifactorial etiology, but the main causes are largely unknown. We have explored the global methylation profile of fetal heart DNA in comparison to blood DNA from control subjects: an absolute correlation with the type of tissue was detected. Pathway analysis revealed a significant enrichment of differential methylation at genes related to muscle contraction and cardiomyopathies in the developing heart DNA. We have also searched for abnormal methylation profiles on developing heart-tissue DNA of syndromic and non-syndromic congenital heart defects. On average, 3 regions with aberrant methylation were detected per sample and 18 regions were found differentially methylated between groups. Several epimutations were detected in candidate genes involved in growth regulation, apoptosis and folate pathway. A likely pathogenic hypermethylation of several intragenic sites at the MSX1 gene, involved in outflow tract morphogenesis, was found in a fetus with isolated heart malformation. In addition, hypermethylation of the GATA4 gene was present in fetuses with Down syndrome with or without congenital heart defects, as well as in fetuses with isolated heart malformations. Expression deregulation of the abnormally methylated genes was detected. Our data indicate that epigenetic alterations of relevant genes are present in developing heart DNA in fetuses with both isolated and syndromic heart malformations. These epimutations likely contribute to the pathogenesis of the malformation by cis-acting effects on gene expression.

  4. Abnormal and normal obsessions: a reconsideration.

    Science.gov (United States)

    Rassin, Eric; Muris, Peter

    2007-05-01

    Contemporary cognitive approaches to obsession assume that the content of clinical obsessions does not differ from non-clinical obsessive intrusions. This assumption goes back to a classic study by Rachman and De Silva [(1978). Abnormal and normal obsessions. Behaviour Research and Therapy, 16, 233-248]. In the present paper, it is argued that Rachman and De Silva did not postulate a complete indifference between clinical and non-clinical obsessions. Study 1 is a simple statistical analysis of data presented by Rachman and De Silva. This analysis suggested that psychologists are able to discriminate clinical and non-clinical obsessions beyond chance level, merely by looking at the content of obsessions. In study 2, a list of 23 clinical and 47 non-clinical obsessions was presented to 11 psychotherapists and 90 psychology undergraduates. Both therapists and students were able to distinguish clinical and non-clinical obsession beyond chance level. It is concluded that some clinical obsessions can be identified as being evidently abnormal, and that additional theory and research is needed to identify the causes of these recognisable obsessions.

  5. Screening human populations for abnormal radiosensitivity

    International Nuclear Information System (INIS)

    Gentner, N.E.; Morrison, D.P.

    1990-07-01

    A relatively rapid and inexpensive in vitro growback assay was developed that uses the irradiated versus the unirradiated re-growth responses of lymphoblastoid cell lines developed from individual donors as an estimator of donor radioresponse. The purpose of this project was to furnish an estimate of the proportion of strains derived from various study populations that may be regarded as exhibiting abnormal radioresponse. The emphasis in this study was on hypersensitivity, because of the known radiation-hypersensitivity and cancer proneness associated with the genetic disorder ataxia-telangiectasia. Using methods developed especially for survival analyses, the percentage of significantly hypersensitive responses was 5.5% in a donor population composed of ostensibly normal individuals. We also examined lines derived from an unselected cancer patient population. These were not enriched, compared to the reference normal population, for hypersensitive responses. We thus conclude that hypersensitivity in vitro is not associated with increased risk for spontaneous development of cancer. However, the failure to observe an association between hypersensitivity and spontaneous cancer does not preclude a correlation between such sensitivity and radiogenic cancer. At the present stage, we would caution against the application of this assay or related in vitro tests to the situation of an individual, as opposed to a population. While we have clear indications that hypersensitivity in vitro is associated with abnormal radioresponse in vivo, this study has identified sources of variation that must be understood before attempts are made to unambiguously attribute a particular type of radioresponse to an individual

  6. Abnormal Fixational Eye Movements in Amblyopia.

    Science.gov (United States)

    Shaikh, Aasef G; Otero-Millan, Jorge; Kumar, Priyanka; Ghasia, Fatema F

    2016-01-01

    Fixational saccades shift the foveal image to counteract visual fading related to neural adaptation. Drifts are slow eye movements between two adjacent fixational saccades. We quantified fixational saccades and asked whether their changes could be attributed to pathologic drifts seen in amblyopia, one of the most common causes of blindness in childhood. Thirty-six pediatric subjects with varying severity of amblyopia and eleven healthy age-matched controls held their gaze on a visual target. Eye movements were measured with high-resolution video-oculography during fellow eye-viewing and amblyopic eye-viewing conditions. Fixational saccades and drifts were analyzed in the amblyopic and fellow eye and compared with controls. We found an increase in the amplitude with decreased frequency of fixational saccades in children with amblyopia. These alterations in fixational eye movements correlated with the severity of their amblyopia. There was also an increase in eye position variance during drifts in amblyopes. There was no correlation between the eye position variance or the eye velocity during ocular drifts and the amplitude of subsequent fixational saccade. Our findings suggest that abnormalities in fixational saccades in amblyopia are independent of the ocular drift. This investigation of amblyopia in pediatric age group quantitatively characterizes the fixation instability. Impaired properties of fixational saccades could be the consequence of abnormal processing and reorganization of the visual system in amblyopia. Paucity in the visual feedback during amblyopic eye-viewing condition can attribute to the increased eye position variance and drift velocity.

  7. Functional neuroimaging abnormalities in idiopathic generalized epilepsy

    Directory of Open Access Journals (Sweden)

    Megan L. McGill

    2014-01-01

    Full Text Available Magnetic resonance imaging (MRI techniques have been used to quantitatively assess focal and network abnormalities. Idiopathic generalized epilepsy (IGE is characterized by bilateral synchronous spike–wave discharges on electroencephalography (EEG but normal clinical MRI. Dysfunctions involving the neocortex, particularly the prefrontal cortex, and thalamus likely contribute to seizure activity. To identify possible morphometric and functional differences in the brains of IGE patients and normal controls, we employed measures of thalamic volumes, cortical thickness, gray–white blurring, fractional anisotropy (FA measures from diffusion tensor imaging (DTI and fractional amplitude of low frequency fluctuations (fALFF in thalamic subregions from resting state functional MRI. Data from 27 patients with IGE and 27 age- and sex-matched controls showed similar thalamic volumes, cortical thickness and gray–white contrast. There were no differences in FA values on DTI in tracts connecting the thalamus and prefrontal cortex. Functional analysis revealed decreased fALFF in the prefrontal cortex (PFC subregion of the thalamus in patients with IGE. We provide minimum detectable effect sizes for each measure used in the study. Our analysis indicates that fMRI-based methods are more sensitive than quantitative structural techniques for characterizing brain abnormalities in IGE.

  8. Brain Abnormalities in Neuromyelitis Optica Spectrum Disorder

    Directory of Open Access Journals (Sweden)

    Woojun Kim

    2012-01-01

    Full Text Available Neuromyelitis optica (NMO is an idiopathic inflammatory syndrome of the central nervous system that is characterized by severe attacks of optic neuritis (ON and myelitis. Until recently, NMO was considered a disease without brain involvement. However, since the discovery of NMO-IgG/antiaqaporin-4 antibody, the concept of NMO was broadened to NMO spectrum disorder (NMOSD, and brain lesions are commonly recognized. Furthermore, some patients present with brain symptoms as their first manifestation and develop recurrent brain symptoms without ON or myelitis. Brain lesions with characteristic locations and configurations can be helpful in the diagnosis of NMOSD. Due to the growing recognition of brain abnormalities in NMOSD, these have been included in the NMO and NMOSD diagnostic criteria or guidelines. Recent technical developments such as diffusion tensor imaging, MR spectroscopy, and voxel-based morphometry reveal new findings related to brain abnormalities in NMOSD that were not identified using conventional MRI. This paper focuses on the incidence and characteristics of the brain lesions found in NMOSD and the symptoms that they cause. Recent studies using advanced imaging techniques are also introduced.

  9. Skeleton-Based Abnormal Gait Detection

    Directory of Open Access Journals (Sweden)

    Trong-Nguyen Nguyen

    2016-10-01

    Full Text Available Human gait analysis plays an important role in musculoskeletal disorder diagnosis. Detecting anomalies in human walking, such as shuffling gait, stiff leg or unsteady gait, can be difficult if the prior knowledge of such a gait pattern is not available. We propose an approach for detecting abnormal human gait based on a normal gait model. Instead of employing the color image, silhouette, or spatio-temporal volume, our model is created based on human joint positions (skeleton in time series. We decompose each sequence of normal gait images into gait cycles. Each human instant posture is represented by a feature vector which describes relationships between pairs of bone joints located in the lower body. Such vectors are then converted into codewords using a clustering technique. The normal human gait model is created based on multiple sequences of codewords corresponding to different gait cycles. In the detection stage, a gait cycle with normality likelihood below a threshold, which is determined automatically in the training step, is assumed as an anomaly. The experimental results on both marker-based mocap data and Kinect skeleton show that our method is very promising in distinguishing normal and abnormal gaits with an overall accuracy of 90.12%.

  10. How Can We Identify Ictal and Interictal Abnormal Activity?

    Science.gov (United States)

    Fisher, Robert S.; Scharfman, Helen E.; deCurtis, Marco

    2015-01-01

    The International League Against Epilepsy (ILAE) defined a seizure as “a transient occurrence of signs and/or symptoms due to abnormal excessive or synchronous neuronal activity in the brain.” This definition has been used since the era of Hughlings Jackson, and does not take into account subsequent advances made in epilepsy and neuroscience research. The clinical diagnosis of a seizure is empirical, based upon constellations of certain signs and symptoms, while simultaneously ruling out a list of potential imitators of seizures. Seizures should be delimited in time, but the borders of ictal (during a seizure), interictal (between seizures) and postictal (after a seizure) often are indistinct. EEG recording is potentially very helpful for confirmation, classification and localization. About a half-dozen common EEG patterns are encountered during seizures. Clinicians rely on researchers to answer such questions as why seizures start, spread and stop, whether seizures involve increased synchrony, the extent to which extra-cortical structures are involved, and how to identify the seizure network and at what points interventions are likely to be helpful. Basic scientists have different challenges in use of the word ‘seizure,’ such as distinguishing seizures from normal behavior, which would seem easy but can be very difficult because some rodents have EEG activity during normal behavior that resembles spike-wave discharge or bursts of rhythmic spiking. It is also important to define when a seizure begins and stops so that seizures can be quantified accurately for pre-clinical studies. When asking what causes seizures, the transition to a seizure and differentiating the pre-ictal, ictal and post-ictal state is also important because what occurs before a seizure could be causal and may warrant further investigation for that reason. These and other issues are discussed by three epilepsy researchers with clinical and basic science expertise. PMID:25012363

  11. Occurrence and Biocatalytic Potential of Carbohydrate Oxidases.

    NARCIS (Netherlands)

    Hellemond, van E.W.; Leferink, N.G.H.; Heuts, D.P.H.M.; Fraaije, M.W.; Berkel, van W.J.H.

    2006-01-01

    Carbohydrate oxidases are found in all kingdoms of life but are mostly found in fungi. Their natural role is not always clear. Usage of molecular oxygen as electron acceptor is not a logical choice when the enzyme is part of a catabolic pathway. This chapter provides an overview of the occurrence

  12. A mathematical model for predicting earthquake occurrence ...

    African Journals Online (AJOL)

    We consider the continental crust under damage. We use the observed results of microseism in many seismic stations of the world which was established to study the time series of the activities of the continental crust with a view to predicting possible time of occurrence of earthquake. We consider microseism time series ...

  13. Sympatric Occurrence of 3 Arenaviruses, Tanzania

    DEFF Research Database (Denmark)

    de Bellocq, Joëlle Goüy; Borremans, Benny; Katakweba, Abdul

    2010-01-01

    To determine the specificity of Morogoro virus for its reservoir host, we studied its host range and genetic diversity in Tanzania. We found that 2 rodent species other than Mastomys natalensis mice carry arenaviruses. Analysis of 340 nt of the viral RNA polymerase gene showed sympatric occurrence...

  14. Occurrence and properties of Petunia peroxidase a

    NARCIS (Netherlands)

    Hendriks, T.

    1989-01-01

    Peroxidases are probably the most extensively studied enzymes in higher plants. Various isoenzymes occur as soluble proteins in the apoplast and in the vacuole, or are bound to membranes and cell walls. Their occurrence is often organ-specific and developmentally controlled, and there is

  15. Familial occurrence of inflammatory bowel disease

    DEFF Research Database (Denmark)

    Orholm, M; Munkholm, P; Langholz, E

    1991-01-01

    BACKGROUND AND METHODS: We assessed the familial occurrence of inflammatory bowel disease in Copenhagen County, where there has been a long-term interest in the epidemiology of such disorders. In 1987 we interviewed 662 patients in whom inflammatory bowel disease had been diagnosed before 1979, a...

  16. Disability occurrence and proximity to death

    NARCIS (Netherlands)

    Klijs, Bart; Mackenbach, Johan P.; Kunst, Anton E.

    2010-01-01

    Purpose. This paper aims to assess whether disability occurrence is related more strongly to proximity to death than to age. Method. Self reported disability and vital status were available from six annual waves and a subsequent 12-year mortality follow-up of the Dutch GLOBE longitudinal study.

  17. Occurrence and functioning of phosphate solubilizing ...

    African Journals Online (AJOL)

    Occurrence and functioning of phosphate solubilizing microorganisms from oil palm tree ( Elaeis guineensis ) rhizosphere in Cameroon. ... While the use of soluble mineral phosphate fertilizers is the obvious best means to combat phosphate ... in order to improve agricultural production, using low inputs technology. Isolates ...

  18. Occurrence of oestrogenic pollutants and widespread feminisation ...

    African Journals Online (AJOL)

    Occurrence of oestrogenic pollutants and widespread feminisation of male tilapia in peri-urban dams in Bulawayo, Zimbabwe. ... African Journal of Aquatic Science ... Effluent and water were sampled from sewage treatment plants, an urban stream, and effluent-polluted dams, and were compared with a 'pristine' dam ...

  19. Phenotypic occurrence of methicillin-resistant Staphylococcus ...

    African Journals Online (AJOL)

    To assess the occurrence of MRSA among camels in Kano abattoir, a total of 300 nasal swabs were collected from camels at the lairage in Kano abattoir, Kano state, Nigeria to isolate and biochemically characterize Staphylococcus aureus and confirm methicillin-resistant Staphylococcus aureus among isolates using ...

  20. Delineation of structures favourable to groundwater occurrence ...

    Indian Academy of Sciences (India)

    R. Narasimhan (Krishtel eMaging) 1461 1996 Oct 15 13:05:22

    local geology, bore well data and other available information in order to improve the reliability of interpretation. 1. Introduction. The groundwater occurrence in geological contacts between two different formations has given ample scope for exploring it near Tiruvuru, Krishna dis- trict. A.P. The presence of thick impermeable.

  1. Deep-sea fungi: Occurrence and adaptations

    Digital Repository Service at National Institute of Oceanography (India)

    Damare, S.

    . In spite of this, fungi have remained largely neglected in the vast environment of deep sea, with some sporadic reports appearing once in a while. With this study, it is tried to reduce this void by describing the occurrence and diversity of fungi from...

  2. Active Longitude and Coronal Mass Ejection Occurrences

    Energy Technology Data Exchange (ETDEWEB)

    Gyenge, N.; Kiss, T. S.; Erdélyi, R. [Solar Physics and Space Plasmas Research Centre (SP2RC), School of Mathematics and Statistics, University of Sheffield Hounsfield Road, Hicks Building, Sheffield S3 7RH (United Kingdom); Singh, T.; Srivastava, A. K., E-mail: n.g.gyenge@sheffield.ac.uk [Department of Physics, Indian Institute of Technology (Banaras Hindu University), Varanasi (India)

    2017-03-20

    The spatial inhomogeneity of the distribution of coronal mass ejection (CME) occurrences in the solar atmosphere could provide a tool to estimate the longitudinal position of the most probable CME-capable active regions in the Sun. The anomaly in the longitudinal distribution of active regions themselves is often referred to as active longitude (AL). In order to reveal the connection between the AL and CME spatial occurrences, here we investigate the morphological properties of active regions. The first morphological property studied is the separateness parameter, which is able to characterize the probability of the occurrence of an energetic event, such as a solar flare or CME. The second morphological property is the sunspot tilt angle. The tilt angle of sunspot groups allows us to estimate the helicity of active regions. The increased helicity leads to a more complex buildup of the magnetic structure and also can cause CME eruption. We found that the most complex active regions appear near the AL and that the AL itself is associated with the most tilted active regions. Therefore, the number of CME occurrences is higher within the AL. The origin of the fast CMEs is also found to be associated with this region. We concluded that the source of the most probably CME-capable active regions is at the AL. By applying this method, we can potentially forecast a flare and/or CME source several Carrington rotations in advance. This finding also provides new information for solar dynamo modeling.

  3. Pyrrolizidine alkaloids: occurrence, biology, and chemical synthesis.

    Science.gov (United States)

    Robertson, Jeremy; Stevens, Kiri

    2017-01-04

    Covering: 2013 up to the end of 2015This review covers the isolation and structure of new pyrrolizidines; pyrrolizidine biosynthesis; biological activity, including the occurrence of pyrrolizidines as toxic components or contaminants in foods and beverages; and formal and total syntheses of naturally-occurring pyrrolizidine alkaloids and closely related non-natural analogues.

  4. Occurrence of organochlorine and organophosphorus pesticide ...

    African Journals Online (AJOL)

    ADOWIE PERE

    info/index.php/jasem http://www.bioline.org.br/ja. Occurrence of organochlorine and .... Data analysis involved analysis of variance (ANOVA) and t-test to test for significance of variations using GraphPad. Instat software (GraphPad Software, Inc.

  5. Occurrence, abundance and distribution of benthic ...

    African Journals Online (AJOL)

    Occurrence, abundance and distribution of benthic macroinvertebrates in the Nyando River catchment, Kenya. ... measures are required to safeguard the environment and ecosystems of Lake Victoria. Keywords: biodiversity index, environmental monitoring, Lake Victoria Basin, species distribution, water quality, Winam Gulf ...

  6. Short Communication: Occurrence and Population Dynamics of ...

    African Journals Online (AJOL)

    The dangerous tomato leaf miner pest (Tuta absoluta), which was reported to have crossed into Ethiopia via the Sudan in 2012, has scared tomato producing farmers across the country. Therefore, a study was conducted using pheromone traps to elucidate the occurrence of the insect pest and to monitor its population ...

  7. Towards a Formal Occurrence Logic based on Predicate Logic

    DEFF Research Database (Denmark)

    Badie, Farshad; Götzsche, Hans

    2015-01-01

    argumentation based on formal Occurrence Logic concerning events and occurrences, and illustrate the relations between Predicate Logic and Occurrence Logic. The relationships (and dependencies) is conducive to an approach that can analyse the occurrences of ”logical statements based on different logical...

  8. Prevalence and predictors of an abnormal stress myocardial perfusion study in asymptomatic patients with type 2 diabetes mellitus

    Energy Technology Data Exchange (ETDEWEB)

    Scholte, Arthur J.H.A.; Schuijf, Joanne D.; Wall, Ernst E. van der; Bax, Jeroen J. [Leiden University Medical Center, Department of Cardiology, Albinusdreef 2, PO Box 9600, Leiden (Netherlands); Kharagjitsingh, Antje V. [Medisch Centrum Haaglanden, Department of Internal Medicine, The Hague (Netherlands); Dibbets-Schneider, Petra; Stokkel, Marcel P. [Leiden University Medical Center, Department of Nuclear Medicine, Leiden (Netherlands)

    2009-04-15

    The purpose of this study was to evaluate the prevalence of an abnormal stress myocardial perfusion study in a cohort of truly asymptomatic patients with type 2 diabetes mellitus using myocardial perfusion imaging by means of single photon emission computed tomography (SPECT). Secondly, we determined which clinical characteristics may predict an abnormal stress myocardial perfusion study in this population. A total of 120 asymptomatic patients (mean age 53{+-}10 years) with type 2 diabetes mellitus and one or more risk factors for coronary artery disease were prospectively recruited from an outpatient diabetes clinic. All patients underwent myocardial perfusion imaging by means of adenosine {sup 99m}Tc sestamibi SPECT. Images were evaluated for the presence of perfusion abnormalities as well as other nonperfusion abnormalities that may indicate extensive ischaemia, including left ventricular dysfunction (defined as a left ventricular ejection fraction <45%), transient ischaemic dilatation and adenosine-induced ST segment depression. Multivariable analysis was performed using a backward selection strategy to identify potential predictors for an abnormal stress myocardial perfusion study. Finally, all patients were followed up for 12 months to determine the occurrence of cardiovascular events: (1) cardiac death, (2) nonfatal myocardial infarction, (3) unstable angina requiring hospitalization, (4) revascularization, or (5) stroke. Of the 120 patients, 40 (33%) had an abnormal stress study, including myocardial perfusion abnormalities in 30 patients (25%). In 10 patients (8%), indicators of extensive (possibly balanced ischaemia) were observed in the absence of abnormal perfusion. The multivariable analysis identified current smoking, duration of diabetes and the cholesterol/high-density lipoprotein (HDL) ratio as independent predictors of an abnormal stress study. During a follow-up period of 12 months six patients (5%) had a cardiovascular event. The current study

  9. Real-time Multiple Abnormality Detection in Video Data

    DEFF Research Database (Denmark)

    Have, Simon Hartmann; Ren, Huamin; Moeslund, Thomas B.

    2013-01-01

    Automatic abnormality detection in video sequences has recently gained an increasing attention within the research community. Although progress has been seen, there are still some limitations in current research. While most systems are designed at detecting specific abnormality, others which...... are capable of detecting more than two types of abnormalities rely on heavy computation. Therefore, we provide a framework for detecting abnormalities in video surveillance by using multiple features and cascade classifiers, yet achieve above real-time processing speed. Experimental results on two datasets...... show that the proposed framework can reliably detect abnormalities in the video sequence, outperforming the current state-of-the-art methods....

  10. Obstructive sleep apnea is a predictor of abnormal glucose metabolism in chronically sleep deprived obese adults.

    Science.gov (United States)

    Cizza, Giovanni; Piaggi, Paolo; Lucassen, Eliane A; de Jonge, Lilian; Walter, Mary; Mattingly, Megan S; Kalish, Heather; Csako, Gyorgy; Rother, Kristina I

    2013-01-01

    Sleep abnormalities, including obstructive sleep apnea (OSA), have been associated with insulin resistance. To determine the relationship between sleep, including OSA, and glucose parameters in a prospectively assembled cohort of chronically sleep-deprived obese subjects. Cross-sectional evaluation of a prospective cohort study. Tertiary Referral Research Clinical Center. Sleep duration and quality assessed by actigraphy, sleep diaries and questionnaires, OSA determined by a portable device; glucose metabolism assessed by oral glucose tolerance test (oGTT), and HbA1c concentrations in 96 obese individuals reporting sleeping less than 6.5 h on a regular basis. Sixty % of subjects had an abnormal respiratory disturbance index (RDI≥5) and 44% of these subjects had abnormal oGTT results. Severity of OSA as assessed by RDI score was associated with fasting glucose (R = 0.325, p = 0.001) and fasting insulin levels (ρ = 0.217, p = 0.033). Subjects with moderate to severe OSA (RDI>15) had higher glucose concentrations at 120 min than those without OSA (RDIsleep deprived individuals. Since sleep apnea is common and frequently undiagnosed, health care providers should be aware of its occurrence and associated risks. This study was conducted under the NIDDK protocol 06-DK-0036 and is listed in ClinicalTrials.gov NCT00261898.

  11. Sensorimotor integration and psychopathology: motor control abnormalities related to psychiatric disorders.

    Science.gov (United States)

    Velasques, Bruna; Machado, Sergio; Paes, Flávia; Cunha, Marlo; Sanfim, Antonio; Budde, Henning; Cagy, Mauricio; Anghinah, Renato; Basile, Luis F; Piedade, Roberto; Ribeiro, Pedro

    2011-12-01

    Recent evidence is reviewed to examine relationships among sensorimotor and cognitive aspects in some important psychiatry disorders. This study reviews the theoretical models in the context of sensorimotor integration and the abnormalities reported in the most common psychiatric disorders, such as Alzheimer's disease, autism spectrum disorder and squizophrenia. The bibliographical search used Pubmed/Medline, ISI Web of Knowledge, Cochrane data base and Scielo databases. The terms chosen for the search were: Alzheimer's disease, AD, autism spectrum disorder, and Squizophrenia in combination with sensorimotor integration. Fifty articles published in English and were selected conducted from 1989 up to 2010. We found that the sensorimotor integration process plays a relevant role in elementary mechanisms involved in occurrence of abnormalities in most common psychiatric disorders, participating in the acquisition of abilities that have as critical factor the coupling of different sensory data which will constitute the basis of elaboration of consciously goal-directed motor outputs. Whether these disorders are associated with an abnormal peripheral sensory input or defective central processing is still unclear, but some studies support a central mechanism. Sensorimotor integration seems to play a significant role in the disturbances of motor control, like deficits in the feedforward mechanism, typically seen in AD, autistic and squizophrenic patients.

  12. Diffusion tensor MR imaging in neurofibromatosis type 1: expanding the knowledge of microstructural brain abnormalities

    Energy Technology Data Exchange (ETDEWEB)

    Ferraz-Filho, Jose R.L.; Muniz, Marcos P.; Souza, Antonio S. [Medical School in Sao Jose do Rio Preto (FAMERP), Radiology Department, Sao Paulo (Brazil); Rocha, Antonio J. da [School Medical Sciences of the Santa Casa de Sao Paulo, Radiology Department, Sao Paulo (Brazil); Goloni-Bertollo, Eny M.; Pavarino-Bertelli, Erika C. [Center of Research and attendace in Neurofibromatosis (CEPAN) of Medical School in Sao Jose do Rio Preto (FAMERP), Sao Paulo (Brazil)

    2012-04-15

    Neurofibromatosis type 1 (NF1) is a hereditary disease with a dominant autosomal pattern. In children and adolescents, it is frequently associated with the appearance of T2-weighted hyperintensities in the brain's white matter. MRI with diffusion tensor imaging (DTI) is used to detect white matter abnormalities by measuring fractional anisotropy (FA). This study employed DTI to evaluate the relationship between FA patterns and the findings of T2 sequences, with the aim of improving our understanding of anatomical changes and microstructural brain abnormalities in individuals with NF1. Forty-four individuals with NF1 and 20 control subjects were evaluated. The comparative analysis of FA between NF1 and control groups was based on four predetermined anatomical regions of the brain hemispheres (basal ganglia, cerebellum, pons, thalamus) and related the presence or absence of T2-weighted hyperintensities in the brain, which are called unidentified bright objects (UBOs). The FA values between the groups demonstrated statistically significant differences (P {<=} 0.05) for the cerebellum and thalamus in patients with NF1, independent of the occurrence of UBOs. Diffusion tensor MR imaging confirms the influence of UBOs in the decrease of FA values in this series of patients with NF1. Additionally, this technique allows the characterization of microstructural abnormalities even in some brain regions that appear normal in conventional MR sequences. (orig.)

  13. Diffusion tensor MR imaging in neurofibromatosis type 1: expanding the knowledge of microstructural brain abnormalities

    International Nuclear Information System (INIS)

    Ferraz-Filho, Jose R.L.; Muniz, Marcos P.; Souza, Antonio S.; Rocha, Antonio J. da; Goloni-Bertollo, Eny M.; Pavarino-Bertelli, Erika C.

    2012-01-01

    Neurofibromatosis type 1 (NF1) is a hereditary disease with a dominant autosomal pattern. In children and adolescents, it is frequently associated with the appearance of T2-weighted hyperintensities in the brain's white matter. MRI with diffusion tensor imaging (DTI) is used to detect white matter abnormalities by measuring fractional anisotropy (FA). This study employed DTI to evaluate the relationship between FA patterns and the findings of T2 sequences, with the aim of improving our understanding of anatomical changes and microstructural brain abnormalities in individuals with NF1. Forty-four individuals with NF1 and 20 control subjects were evaluated. The comparative analysis of FA between NF1 and control groups was based on four predetermined anatomical regions of the brain hemispheres (basal ganglia, cerebellum, pons, thalamus) and related the presence or absence of T2-weighted hyperintensities in the brain, which are called unidentified bright objects (UBOs). The FA values between the groups demonstrated statistically significant differences (P ≤ 0.05) for the cerebellum and thalamus in patients with NF1, independent of the occurrence of UBOs. Diffusion tensor MR imaging confirms the influence of UBOs in the decrease of FA values in this series of patients with NF1. Additionally, this technique allows the characterization of microstructural abnormalities even in some brain regions that appear normal in conventional MR sequences. (orig.)

  14. A Nanodot Array Modulates Cell Adhesion and Induces an Apoptosis-Like Abnormality in NIH-3T3 Cells

    Directory of Open Access Journals (Sweden)

    Hung Yao-Ching

    2009-01-01

    Full Text Available Abstract Micro-structures that mimic the extracellular substratum promote cell growth and differentiation, while the cellular reaction to a nanostructure is poorly defined. To evaluate the cellular response to a nanoscaled surface, NIH 3T3 cells were grown on nanodot arrays with dot diameters ranging from 10 to 200 nm. The nanodot arrays were fabricated by AAO processing on TaN-coated wafers. A thin layer of platinum, 5 nm in thickness, was sputtered onto the structure to improve biocompatibility. The cells grew normally on the 10-nm array and on flat surfaces. However, 50-nm, 100-nm, and 200-nm nanodot arrays induced apoptosis-like events. Abnormality was triggered after as few as 24 h of incubation on a 200-nm dot array. For cells grown on the 50-nm array, the abnormality started after 72 h of incubation. The number of filopodia extended from the cell bodies was lower for the abnormal cells. Immunostaining using antibodies against vinculin and actin filament was performed. Both the number of focal adhesions and the amount of cytoskeleton were decreased in cells grown on the 100-nm and 200-nm arrays. Pre-coatings of fibronectin (FN or type I collagen promoted cellular anchorage and prevented the nanotopography-induced programed cell death. In summary, nanotopography, in the form of nanodot arrays, induced an apoptosis-like abnormality for cultured NIH 3T3 cells. The occurrence of the abnormality was mediated by the formation of focal adhesions.

  15. Gynecologic anatomic abnormalities following anorectal malformations repair.

    Science.gov (United States)

    Vilanova-Sanchez, Alejandra; Reck, Carlos A; McCracken, Kate A; Lane, Victoria A; Gasior, Alessandra C; Wood, Richard J; Levitt, Marc A; Hewitt, Geri D

    2018-04-01

    Patients may present with gynecologic concerns after previous posterior sagittal anorectoplasty (PSARP) for repair of an anorectal malformation (ARM). Common findings include an inadequate or shortened perineal body, as well as introital stenosis, retained vaginal septum, and remnant rectovestibular fistula. An inadequate or shortened perineal body may impact fecal continence, sexual function and recommendations regarding obstetrical mode of delivery. We describe our experience with female patients referred to our center for evaluation of their previously repaired ARM, with a specific focus on perineal body anatomy and concomitant gynecologic abnormalities. We outline our collaborative evaluation process and findings as well as subsequent repair and outcomes. A single site retrospective chart review from May 2014 to May 2016 was performed. Female patients with a history of prior ARM repair who required subsequent reoperative surgical repair with perineoplasty were included. The decision for reoperation was made collaboratively after a multidisciplinary evaluation by colorectal surgery, urology, and gynecology which included examination under anesthesia (EUA) with cystoscopy, vaginoscopy, rectal examination, and electrical stimulation of anal sphincters. The type of original malformation, indication for reoperative perineoplasty, findings leading to additional procedures performed at time of perineoplasty, postoperative complications, and the length of follow up were recorded. During the study period 28 patients were referred for evaluation after primary ARM repair elsewhere and 15 patients (60%) met inclusion criteria. Thirteen patients (86.6%) originally had a rectovestibular fistula with prior PSARP and 2 patients (13.4%) originally had a cloacal malformation with prior posterior sagittal anorectovaginourethroplasty. The mean age at the time of the subsequent perineoplasty was 4.6years (0.5-12). Patients had an inadequate perineal body requiring reoperative

  16. Morphological Abnormalities of Thalamic Subnuclei in Migraine

    DEFF Research Database (Denmark)

    Magon, Stefano; May, Arne; Stankewitz, Anne

    2015-01-01

    UNLABELLED: The thalamus contains third-order relay neurons of the trigeminal system, and animal models as well as preliminary imaging studies in small cohorts of migraine patients have suggested a role of the thalamus in headache pathophysiology. However, larger studies using advanced imaging...... techniques in substantial patient populations are lacking. In the present study, we investigated changes of thalamic volume and shape in a large multicenter cohort of patients with migraine. High-resolution T1-weighted MRI data acquired at 3 tesla in 131 patients with migraine (38 with aura; 30.8 ± 9 years...... a fully automated multiatlas approach. Deformation-based shape analysis was performed to localize surface abnormalities. Differences between patients with migraine and healthy subjects were assessed using an ANCOVA model. After correction for multiple comparisons, performed using the false discovery rate...

  17. Congenital abnormalities of the posterior fossa.

    Science.gov (United States)

    Bosemani, Thangamadhan; Orman, Gunes; Boltshauser, Eugen; Tekes, Aylin; Huisman, Thierry A G M; Poretti, Andrea

    2015-01-01

    The frequency and importance of the evaluation of the posterior fossa have increased significantly over the past 20 years owing to advances in neuroimaging. Nowadays, conventional and advanced neuroimaging techniques allow detailed evaluation of the complex anatomic structures within the posterior fossa. A wide spectrum of congenital abnormalities has been demonstrated, including malformations (anomalies due to an alteration of the primary developmental program caused by a genetic defect) and disruptions (anomalies due to the breakdown of a structure that had a normal developmental potential). Familiarity with the spectrum of congenital posterior fossa anomalies and their well-defined diagnostic criteria is crucial for optimal therapy, an accurate prognosis, and correct genetic counseling. The authors discuss the spectrum of posterior fossa malformations and disruptions, with emphasis on neuroimaging findings (including diagnostic criteria), neurologic presentation, systemic involvement, prognosis, and risk of recurrence. RSNA, 2015

  18. Abnormal epidermal changes after argon laser treatment

    Energy Technology Data Exchange (ETDEWEB)

    Neumann, R.A.; Knobler, R.M.; Aberer, E.; Klein, W.; Kocsis, F.; Ott, E. (Univ. of Vienna (Austria))

    1991-02-01

    A 26-year-old woman with a congenital port-wine stain on the forehead was treated three times at 2-month intervals with an argon laser. Six months after the last treatment, moderate blanching and mild scaling confined to the treated area was observed. A biopsy specimen of the treated area revealed a significant decrease in ectatic vessels. However, epidermal changes similar to those of actinic keratosis with disorganized cell layers and marked cytologic abnormalities were seen. Analysis of peripheral blood lymphocytes for a defect in DNA repair was negative. Multiple, argon laser-induced photothermal effects may be responsible for the changes observed in our case and may lead to premalignant epidermal transformation.

  19. Persistent Pain and Sensory Abnormalities after Abdominoplasty

    DEFF Research Database (Denmark)

    Presman, Benjamin; Finnerup, Kenneth; Andresen, Sven R

    2015-01-01

    and characteristics of persistent pain after abdominoplasty, which is one of the most frequent cosmetic surgical procedures. METHODS: In September 2014, a link to a web-based questionnaire was mailed to 217 patients who had undergone abdominoplasty between 2006 and 2014 at the Department of Plastic Surgery, Aalborg......BACKGROUND: Persistent postsurgical pain is a well-recognized problem after a number of common surgical procedures, such as amputation, thoracotomy, and inguinal hernia repair. Less is known about persistent pain after cosmetic surgical procedures. We, therefore, decided to study the incidence...... University Hospital, Denmark. The questionnaire included questions about pain and sensory abnormalities located to the abdominal skin, and physical and psychological function; patient satisfaction with surgery was rated on a 4-point scale. RESULTS: One hundred seventy patients answered the questionnaire...

  20. Glutamatergic system abnormalities in posttraumatic stress disorder.

    Science.gov (United States)

    Nishi, Daisuke; Hashimoto, Kenji; Noguchi, Hiroko; Hamazaki, Kei; Hamazaki, Tomohito; Matsuoka, Yutaka

    2015-12-01

    Accumulating evidence suggests involvement of the glutamatergic system in the biological mechanisms of posttraumatic stress disorder (PTSD), but few studies have demonstrated an association between glutamatergic system abnormalities and PTSD diagnosis or severity. We aimed to examine whether abnormalities in serum glutamate and in the glutamine/glutamate ratio were associated with PTSD diagnosis and severity in severely injured patients at risk for PTSD and major depressive disorder (MDD). This is a nested case-control study in TPOP (Tachikawa project for prevention of posttraumatic stress disorder with polyunsaturated fatty acid) trial. Diagnosis and severity of PTSD were assessed 3 months after the accidents using the Clinician-Administered PTSD Scale. The associations of glutamate levels and the glutamine/glutamate ratio with diagnosis and severity of PTSD and MDD were investigated by univariate and multiple linear regression analyses. Ninety-seven of 110 participants (88 %) completed assessments at 3 months. Serum glutamate levels were significantly higher for participants with full or partial PTSD than for participants without PTSD (p = 0.049) and for participants with MDD than for participants without MDD (p = 0.048). Multiple linear regression analyses showed serum glutamate levels were significantly positively associated with PTSD severity (p = 0.02) and MDD severity (p = 0.03). The glutamine/glutamate ratio was also significantly inversely associated with PTSD severity (p = 0.03), but not with MDD severity (p = 0.07). These findings suggest that the glutamatergic system may play a major role in the pathogenesis of PTSD and the need for new treatments targeting the glutamatergic system to be developed for PTSD.

  1. Estimating suicide occurrence statistics using Google Trends

    Directory of Open Access Journals (Sweden)

    Ladislav Kristoufek

    2016-11-01

    Full Text Available Abstract Data on the number of people who have committed suicide tends to be reported with a substantial time lag of around two years. We examine whether online activity measured by Google searches can help us improve estimates of the number of suicide occurrences in England before official figures are released. Specifically, we analyse how data on the number of Google searches for the terms ‘depression’ and ‘suicide’ relate to the number of suicides between 2004 and 2013. We find that estimates drawing on Google data are significantly better than estimates using previous suicide data alone. We show that a greater number of searches for the term ‘depression’ is related to fewer suicides, whereas a greater number of searches for the term ‘suicide’ is related to more suicides. Data on suicide related search behaviour can be used to improve current estimates of the number of suicide occurrences.

  2. Idaho National Laboratory Quarterly Occurrence Analysis

    Energy Technology Data Exchange (ETDEWEB)

    Mitchell, Lisbeth Ann [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-11-01

    This report is published quarterly by the Idaho National Laboratory (INL) Quality and Performance Management Organization. The Department of Energy (DOE) Occurrence Reporting and Processing System (ORPS), as prescribed in DOE Order 232.2, “Occurrence Reporting and Processing of Operations Information,” requires a quarterly analysis of events, both reportable and not reportable, for the previous 12 months. This report is the analysis of 85 reportable events (18 from the 4th Qtr FY-15 and 67 from the prior three reporting quarters), as well as 25 other issue reports (including events found to be not reportable and Significant Category A and B conditions) identified at INL during the past 12 months (8 from this quarter and 17 from the prior three quarters).

  3. Occurrence of hypercementosis in a German population.

    Science.gov (United States)

    Bürklein, Sebastian; Jansen, Sabine; Schäfer, Edgar

    2012-12-01

    The purpose of this study was to assess the occurrence of hypercementosis in a selected German dental school patient population. A total of 800 full-mouth periapical radiographic series were screened. The radiographs were evaluated under optimal conditions by using double magnifying glasses. A total of 18,589 teeth including third molars were evaluated. The relative incidence of hypercementosis and the correlation regarding the location (left-side versus right-side occurrence, maxillary versus mandibular, and anterior versus posterior teeth) and between men and women were recorded and analyzed by using the χ(2) test. Eleven patients were found to have hypercementosis, 10 women and 1 man (P hypercementosis, and 6 had more than 1 (54.54%). In total, 22 teeth associated with hypercementosis were found. Seven maxillary teeth were associated with hypercementosis (31.82%) and 15 mandibular teeth (68.18%) (P = .198). No significant differences were found regarding left-side and right-side occurrence of the affected teeth (P > .05). Hypercementosis was significantly more often associated with premolars and molars than with incisors (P Hypercementosis was found in 11 of 800 patients (1.33%). It was identified in 22 of the 18,589 teeth examined (0.12%). The occurrence of hypercementosis among this selected German population was rare. Female patients were approximately 10 times more often affected than male patients. Mandibular teeth were approximately twice as often associated with hypercementosis as maxillary teeth. Copyright © 2012 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  4. Occurrence of antimicrobial resistance among bacterial pathogens

    OpenAIRE

    Hendriksen, Rene S.; Mevius, Dik J.; Schroeter, Andreas; Teale, Christopher; Jouy, Eric; Butaye, Patrick; Franco, Alessia; Utinane, Andra; Amado, Alice; Moreno, Miguel; Greko, Christina; Stärk, Katharina D.C.; Berghold, Christian; Myllyniemi, Anna-Liisa; Hoszowski, Andrzej

    2008-01-01

    Background: The project "Antibiotic resistance in bacteria of animal origin – II" (ARBAO-II) was funded by the European Union (FAIR5-QLK2-2002-01146) for the period 2003–05. The aim of this project was to establish a program for the continuous monitoring of antimicrobial susceptibility of pathogenic and indicator bacteria from food animals using validated and harmonised methodologies. In this report the first data on the occurrence of antimicrobial resistance among bacteria cau...

  5. Synchronous Occurrence of Colon and Appendiceal Adenocarcinoma

    OpenAIRE

    Goryń Tomasz; Meszka Monika; Pawlak Jacek

    2014-01-01

    The study presented two cases of synchronous occurrence of colon and appendiceal adenocarcinoma. Both patients required surgical intervention, due to acute peritonitis during the course of acute appendicitis. In case of one patient we performed abdominal CT confirming the presence of sigmoid cancer. The patient was subjected to appendectomy and Hartmann’s operation. The second patient underwent an appendectomy, and colonoscopy performed two months later revealed the presence of rectal adenoca...

  6. The Electrogenic Na+/K+ Pump Is a Key Determinant of Repolarization Abnormality Susceptibility in Human Ventricular Cardiomyocytes: A Population-Based Simulation Study

    Directory of Open Access Journals (Sweden)

    Oliver J. Britton

    2017-05-01

    Full Text Available Background: Cellular repolarization abnormalities occur unpredictably due to disease and drug effects, and can occur even in cardiomyocytes that exhibit normal action potentials (AP under control conditions. Variability in ion channel densities may explain differences in this susceptibility to repolarization abnormalities. Here, we quantify the importance of key ionic mechanisms determining repolarization abnormalities following ionic block in human cardiomyocytes yielding normal APs under control conditions.Methods and Results: Sixty two AP recordings from non-diseased human heart preparations were used to construct a population of human ventricular models with normal APs and a wide range of ion channel densities. Multichannel ionic block was applied to investigate susceptibility to repolarization abnormalities. IKr block was necessary for the development of repolarization abnormalities. Models that developed repolarization abnormalities over the widest range of blocks possessed low Na+/K+ pump conductance below 50% of baseline, and ICaL conductance above 70% of baseline. Furthermore, INaK made the second largest contribution to repolarizing current in control simulations and the largest contribution under 75% IKr block. Reversing intracellular Na+ overload caused by reduced INaK was not sufficient to prevent abnormalities in models with low Na+/K+ pump conductance, while returning Na+/K+ pump conductance to normal substantially reduced abnormality occurrence, indicating INaK is an important repolarization current.Conclusions: INaK is an important determinant of repolarization abnormality susceptibility in human ventricular cardiomyocytes, through its contribution to repolarization current rather than homeostasis. While we found IKr block to be necessary for repolarization abnormalities to occur, INaK decrease, as in disease, may amplify the pro-arrhythmic risk of drug-induced IKr block in humans.

  7. The Electrogenic Na+/K+ Pump Is a Key Determinant of Repolarization Abnormality Susceptibility in Human Ventricular Cardiomyocytes: A Population-Based Simulation Study.

    Science.gov (United States)

    Britton, Oliver J; Bueno-Orovio, Alfonso; Virág, László; Varró, András; Rodriguez, Blanca

    2017-01-01

    Background: Cellular repolarization abnormalities occur unpredictably due to disease and drug effects, and can occur even in cardiomyocytes that exhibit normal action potentials (AP) under control conditions. Variability in ion channel densities may explain differences in this susceptibility to repolarization abnormalities. Here, we quantify the importance of key ionic mechanisms determining repolarization abnormalities following ionic block in human cardiomyocytes yielding normal APs under control conditions. Methods and Results: Sixty two AP recordings from non-diseased human heart preparations were used to construct a population of human ventricular models with normal APs and a wide range of ion channel densities. Multichannel ionic block was applied to investigate susceptibility to repolarization abnormalities. I Kr block was necessary for the development of repolarization abnormalities. Models that developed repolarization abnormalities over the widest range of blocks possessed low Na + /K + pump conductance below 50% of baseline, and I CaL conductance above 70% of baseline. Furthermore, I NaK made the second largest contribution to repolarizing current in control simulations and the largest contribution under 75% I Kr block. Reversing intracellular Na + overload caused by reduced I NaK was not sufficient to prevent abnormalities in models with low Na + /K + pump conductance, while returning Na + /K + pump conductance to normal substantially reduced abnormality occurrence, indicating I NaK is an important repolarization current. Conclusions: I NaK is an important determinant of repolarization abnormality susceptibility in human ventricular cardiomyocytes, through its contribution to repolarization current rather than homeostasis. While we found I Kr block to be necessary for repolarization abnormalities to occur, I NaK decrease, as in disease, may amplify the pro-arrhythmic risk of drug-induced I Kr block in humans.

  8. A 4-year study of the proportional distribution of male reproductive organ abnormalities in cattle slaughtered at Nyagatare abattoir, Eastern Rwanda.

    Science.gov (United States)

    Kandiwa, Erick; Nyirakunzimana, Leoncie; Habarugira, Gervais; Mushonga, Borden; Samkange, Alaster

    2017-11-01

    Male reproductive performance has more impact on overall herd productivity than in the female. In order to assess herd productivity in cattle in Nyagatare, Eastern Rwanda, the proportional distribution of male reproductive organ abnormalities was investigated in 3087 bulls slaughtered over a 4-year period. The aim of the study was to investigate the proportional distribution of male reproductive organ abnormalities in exotic and indigenous bulls slaughtered over a 4-year period at Nyagatare abattoir in Eastern Rwanda. Positioning of the testicles was observed and recorded as the animals were assembled before slaughter. After slaughter, the internal and external reproductive organs of all bulls were removed, labelled and analysed for pathology. Significantly more indigenous (79.01%) than exotic (20.99%) animals were slaughtered ( P  < 0.05; N  = 3 087). Overall occurrence of abnormalities was significantly higher in exotic (20.83%) than in indigenous (10.33%) animals ( P  < 0.05). Overall, abnormal location of testicles was the most common abnormality (4.08%) followed by abnormal prepuce and penis (2.33%), orchitis (1.94%), enlarged vesicular gland (0.91%), scrotal hernia (0.87%), unilateral cryptorchidism (0.81%), testicular hypoplasia (0.81%) and hydrocoele (0.78%). Abnormal location of testicles, abnormal prepuce and penis, orchitis, testicular hypoplasia and enlarged vesicular glands had significantly higher prevalence in exotic animals than in indigenous animals ( P  < 0.05). There was no significant difference in the prevalence of unilateral cryptorchidism, hydrocoele and scrotal hernia between the exotic and indigenous breeds. The encountered reproductive abnormalities result in poor herd fertility manifesting as low first-service conception rates, prolonged breeding seasons and reduced weaning weights accompanied by inevitable financial losses in beef production. The observed high proportion of male reproductive abnormalities in exotic breeds might

  9. Urogenital abnormalities in men exposed to diethylstilbestrol in utero: a cohort study

    Directory of Open Access Journals (Sweden)

    Palmer Julie R

    2009-08-01

    Full Text Available Abstract Background Diethylstilbestrol (DES, a synthetic estrogen widely prescribed to pregnant women during the 1940s–70s, has been shown to cause reproductive problems in the daughters. Studies of prenatally-exposed males have yielded conflicting results. Methods In data from a collaborative follow-up of three U.S. cohorts of DES-exposed sons, we examined the relation of prenatal DES exposure to occurrence of male urogenital abnormalities. Exposure status was determined through review of prenatal records. Mailed questionnaires (1994, 1997, 2001 asked about specified abnormalities of the urogenital tract. Risk ratios (RR were estimated by Cox regression with constant time at risk and control for year of birth. Results Prenatal DES exposure was not associated with varicocele, structural abnormalities of the penis, urethral stenosis, benign prostatic hypertrophy, or inflammation/infection of the prostate, urethra, or epididymus. However, RRs were 1.9 (95% confidence interval 1.1–3.4 for cryptorchidism, 2.5 (1.5–4.3 for epididymal cyst, and 2.4 (1.5–4.4 for testicular inflammation/infection. Stronger associations were observed for DES exposure that began before the 11th week of pregnancy: RRs were 2.9 (1.6–5.2 for cryptorchidism, 3.5 (2.0–6.0 for epididymal cyst, and 3.0 (1.7–5.4 for inflammation/infection of testes. Conclusion These results indicate that prenatal exposure to DES increases risk of male urogenital abnormalities and that the association is strongest for exposure that occurs early in gestation. The findings support the hypothesis that endocrine disrupting chemicals may be a cause of the increased prevalence of cryptorchidism that has been seen in recent years.

  10. Urogenital abnormalities in men exposed to diethylstilbestrol in utero: a cohort study

    Science.gov (United States)

    2009-01-01

    Background Diethylstilbestrol (DES), a synthetic estrogen widely prescribed to pregnant women during the 1940s-70s, has been shown to cause reproductive problems in the daughters. Studies of prenatally-exposed males have yielded conflicting results. Methods In data from a collaborative follow-up of three U.S. cohorts of DES-exposed sons, we examined the relation of prenatal DES exposure to occurrence of male urogenital abnormalities. Exposure status was determined through review of prenatal records. Mailed questionnaires (1994, 1997, 2001) asked about specified abnormalities of the urogenital tract. Risk ratios (RR) were estimated by Cox regression with constant time at risk and control for year of birth. Results Prenatal DES exposure was not associated with varicocele, structural abnormalities of the penis, urethral stenosis, benign prostatic hypertrophy, or inflammation/infection of the prostate, urethra, or epididymus. However, RRs were 1.9 (95% confidence interval 1.1-3.4) for cryptorchidism, 2.5 (1.5-4.3) for epididymal cyst, and 2.4 (1.5-4.4) for testicular inflammation/infection. Stronger associations were observed for DES exposure that began before the 11th week of pregnancy: RRs were 2.9 (1.6-5.2) for cryptorchidism, 3.5 (2.0-6.0) for epididymal cyst, and 3.0 (1.7-5.4) for inflammation/infection of testes. Conclusion These results indicate that prenatal exposure to DES increases risk of male urogenital abnormalities and that the association is strongest for exposure that occurs early in gestation. The findings support the hypothesis that endocrine disrupting chemicals may be a cause of the increased prevalence of cryptorchidism that has been seen in recent years. PMID:19689815

  11. Association of loss of heterozygosity with cytogenetic abnormalities in acute myeloid leukemia and myelodysplastic syndrome

    Directory of Open Access Journals (Sweden)

    R.F. Pinheiro

    2008-07-01

    Full Text Available Deletions on chromosomes 5 and 7 are frequently seen in myelodysplastic syndrome (MDS and acute myeloid leukemia (AML. It is assumed that these deletions indicate loss of tumor suppressor genes on these chromosomes and until these tumor suppressor genes are identified, the functional consequences of these deletions and the molecular basis of these myeloid disorders cannot be completely understood. We evaluated loss of heterozygosity (LOH in 44 patients (18 MDS and 26 AML, diagnosed according to WHO classification criteria at diagnosis, using a four-microsatellite marker panel: an intragenic marker on the 7th intron of gene IRF-1 of the 5q31.1 region and three markers located inside the 7q31.1 region and correlated the LOH with karyotype abnormalities. The microsatellites chosen corresponded to chromosome regions frequently deleted in MDS/AML. The samples with Q (peak area less than or equal to 0.50 were indicative of LOH. The percent of informative samples (i.e., heterozygous for the intragenic microsatellite in gene IRF-1 and in loci D7S486, D7S515 and D7S522 were 66.6, 73.7, 75.5, and 48.8%, respectively. Cytogenetic abnormalities by G-banding were found in 36% (16/44 of the patients (2 of 18 MDS and 14 of 26 AML patients. We found a significantly positive association of the occurrence of LOH with abnormal karyotype (P < 0.05; chi-square test and there were cases with LOH but the karyotype was normal (by G-banding. These data indicate that LOH in different microsatellite markers is possibly an event previous to chromosomal abnormalities in these myeloid neoplasias.

  12. Occurrences and Effects of Drought across Africa

    Science.gov (United States)

    Mwangi, M. N.

    2009-12-01

    Drought is a common occurrence in Africa and its effects vary temporally and spatially across the continent. The objective of this paper is to synthesize available information on droughts in Africa in order to discern emerging trends vis-à-vis spatiotemporal occurrences, impacts and adaptation. Drought forcings in the Sahelian region and southern Africa are predominately related to the passage of mid-latitude air masses while in locations near the equator is strongly linked to the position of ITCZ, except perhaps in the deserts where albedo may predominate. The review shows that drought occurrences have increased both temporally and spatially; its effects on the society vary across scales, and are influenced by political, economic, social, cultural, and ecological factors. The drought occurrence and its impacts varied spatially and temporally. The effect of drought also varied with socioeconomic sector; agriculture and pastoralism were the widely reported. The greater horn of Africa, specifically Kenya, has the most continuous record of droughts. The synthesis also reveals that a suite of drought adaptation strategies exists at the local scale; in contrasts, at the aggregate scale, coping strategies are scarce. Drought management tailored for specific livelihood system or societies are non-existent. The study found that occurrence of drought alongside issues related to the multiscale political economy affect the viability of most adaptation strategies used by societies across Africa. Drought management has been silent on the social, political, and economic dimensions that reasonably aggravate the vulnerability of lives and livelihood systems to this climatic hazard. The effect of drought and social pressures is relational and simultaneous to such a degree that differential vulnerability among communities across Africa is to be expected. Although scenarios about rainfall and drought vis-à-vis Africa are largely contested there is a general indication that most

  13. Detection of chromosomal abnormalities, congenital abnormalities and transfusion syndrome in twins

    DEFF Research Database (Denmark)

    Sperling, Lene; Kiil, C; Larsen, L U

    2007-01-01

    observational study were women with twin pregnancies diagnosed before 14 + 6 gestational weeks. The monochorionic pregnancies were scanned every second week until 23 weeks in order to rule out early TTTS. All pregnancies had an anomaly scan in week 19 and fetal echocardiography in week 21 that was performed...... by specialists in fetal echocardiography. Zygosity was determined by DNA analysis in all twin pairs with the same sex. RESULTS: Among the 495 pregnancies the prenatal detection rate for severe structural abnormalities including chromosomal aneuploidies was 83% by the combination of a first-trimester nuchal...... translucency scan and the anomaly scan in week 19. The incidence of severe structural abnormalities was 2.6% and two-thirds of these anomalies were cardiac. There was no significant difference between the incidence in monozygotic and dizygotic twins, nor between twins conceived naturally or those conceived...

  14. Imaging Characteristics of Venous Parenchymal Abnormalities.

    Science.gov (United States)

    Arnoux, Audrey; Triquenot-Bagan, Aude; Andriuta, Daniela; Wallon, David; Guegan-Massardier, Evelyne; Leclercq, Claire; Martinaud, Olivier; Castier-Amouyel, Mélody; Godefroy, Olivier; Bugnicourt, Jean-Marc

    2017-12-01

    There are few published data on the patterns of parenchymal imaging abnormalities in a context of cerebral venous thrombosis (CVT). The objectives of the present study were to describe the patterns of parenchymal lesions associated with CVT and to determine the lesion sites. We included 44 consecutively hospitalized patients with CVT and parenchymal lesions on magnetic resonance imaging. The diagnosis of CVT had been confirmed by magnetic resonance imaging/magnetic resonance venography. Magnetic resonance imaging patterns for CVT were retrospectively analyzed with regard to the lesion's type, shape, and site. The most frequent stroke subtype was hemorrhagic ischemia (in 56.8% of cases), followed by intracerebral hematoma (in 22.72% of cases) and nonhemorrhagic ischemia (in 20.45% of cases). Although there were no significant differences between these 3 groups with regard to the clinical and radiological characteristics, we observed a nonsignificant trend ( P =0.08) toward a shorter time interval between hospital admission and magnetic resonance imaging for nonhemorrhagic stroke. The CVT parenchymal abnormalities were centered on 6 main foci and were related to the site of venous occlusion: (1) the inferior parietal lobule (n=20; 44.5%), associated mainly with occlusion of the transverse sinus (n=10) or pure cortical veins (n=10); (2) the inferior and posterior temporal regions (n=10; 22.75%), associated mainly with occlusion of the transverse sinus (n=9); (3) the parasagittal frontal region (n=6; 13.6%), associated mainly with occlusion of the superior sagittal sinus (n=4) or the transverse sinus (n=4); (4) the thalamus (n=5; 11.3%) associated with occlusion of the straight sinus (n=5); (5) the cerebellar hemisphere (n=2; 4.5%), associated in both cases with occlusion of the transverse sinus; and (6) the deep hemispheric regions (n=3; 6.8%), associated with occlusion of the superior sagittal sinus in all cases. Parenchymal lesions caused by CVT display specific

  15. Antenatal diagnosis and management of urinary abnormalities.

    Science.gov (United States)

    Colodny, A H

    1987-10-01

    Although much time, effort, and money have been expended in the area of fetal surgery and even though considerable unfortunate media publicity has resulted, the actual clinical problem is not one of great magnitude. Currently all those interested in this area agree that consideration of any intrauterine manipulation or surgery should be reserved for a fetus who has bilateral involvement that is progressive, destructive, and associated with oligohydramnios. Except for rare instances, this eliminates all fetuses except those with some type of urethral obstruction. Significant urethral obstruction accounts for approximately 10 per cent of all patients who have a prenatal diagnosis of a urologic abnormality. Of this 10 per cent, some will not be progressive, some will not be destructive, some will not involve both kidneys, and some will not develop oligohydramnios. Some of these patients will be diagnosed early enough in pregnancy to allow termination of the pregnancy if the involvement is significant and if termination is acceptable to the family. Some will be diagnosed late enough in pregnancy so that if the lungs are mature or can be stimulated to mature, early delivery and postnatal management can be elected. Some will have other associated lethal anomalies that can be diagnosed and would preclude any consideration of intrauterine manipulation or therapy. Some will have irreversible renal failure. Occasionally, the mother may refuse any proposed intrauterine therapy. Thus we are probably considering, on a theoretic basis, well under 1 per cent of all fetuses who have a prenatal diagnosis of urologic abnormalities. There may be some unusual situations that justify intrauterine manipulation. One that we encountered involved a fetus with an abdominal mass so large that a cesarean section was deemed necessary (Figs. 12 and 13). Aspiration of the mass just before delivery was performed to allow a vaginal delivery. Another case involved a pregnant woman who developed

  16. Electrocardiogram Abnormalities and Coronary Calcification in Postmenopausal Women

    Directory of Open Access Journals (Sweden)

    Siamak Sabour

    2010-03-01

    Results: LVH was found in 2.7% (n = 15 of the women. The prevalence of T-axis abnormality was 6% (n = 34, whereas 8.5% (n = 48 had a QRS-T angle abnormality. CAC was found in 62% of the women. Compared to women with a normal T-axis, women with borderline or abnormal T-axes were 3.8 fold more likely to have CAC (95% CI: 1.4-10.2. Similarly, compared to women with a normal QRS-T angle, in women with borderline or abnormal QRS-T angle, CAC was 2.0 fold more likely to be present (95% CI: 1.0-4.1. Conclusion: Among women with ECG abnormalities reflecting subclinical ischemia, CAC is commonly found and may in part explain the increased coronary heart disease risk associated with these ECG abnormalities.

  17. Abnormality degree detection method using negative potential field group detectors

    Science.gov (United States)

    Zhang, Hongli; Liu, Shulin; Li, Dong; Shi, Kunju; Wang, Bo; Cui, Jiqiang

    2015-09-01

    Online monitoring methods have been widely used in many major devices, however the normal and abnormal states of equipment are estimated mainly based on the monitoring results whether monitored parameters exceed the setting thresholds. Using these monitoring methods may cause serious false positive or false negative results. In order to precisely monitor the state of equipment, the problem of abnormality degree detection without fault sample is studied with a new detection method called negative potential field group detectors(NPFG-detectors). This method achieves the quantitative expression of abnormality degree and provides the better detection results compared with other methods. In the process of Iris data set simulation, the new algorithm obtains the successful results in abnormal detection. The detection rates for 3 types of Iris data set respectively reach 100%, 91.6%, and 95.24% with 50% training samples. The problem of Bearing abnormality degree detection via an abnormality degree curve is successfully solved.

  18. Chromosomal Abnormalities in Offspring of Young Cancer Survivors

    DEFF Research Database (Denmark)

    Nielsen, Betina Frydenlund; Schmidt, Anne Aarslev; Mulvihill, John J

    2018-01-01

    Danish cancer survivors and 40 859 offspring (40 794 live-born children and 65 fetuses) of 19 536 siblings. Chromosomal abnormalities include numeric and structural abnormalities. Odds ratios were estimated by multiple logistic regression models comparing the risk of chromosomal abnormalities among...... compared with their siblings' offspring (odds ratio = 0.99, 95% confidence interval = 0.67 to 1.44, two-sided P = .94), with similar risk between male and female survivors. Cancer survivors were not more likely than their siblings to have children with a chromosomal abnormality.......To examine whether cancer survivors diagnosed before age 35 years are more likely to have offspring with chromosomal abnormalities than their siblings, chromosomal abnormalities were determined in a population-based cohort of 14 611 offspring (14 580 live-born children and 31 fetuses) of 8945...

  19. Incidence of fetal chromosome abnormalities in insulin dependent diabetic women

    DEFF Research Database (Denmark)

    Henriques, C U; Damm, P; Tabor, A

    1991-01-01

    In order to screen for fetal neural tube defects and chromosome abnormalities, amniocentesis was carried out in 334 women with insulin-dependent diabetes mellitus (IDDM) between 1979 and 1987. Two cases (0.6%; 95% confidence limits 0.1-2.2%) of fetal chromosome abnormality were found: one case...... of Klinefelter's syndrome and one case of de novo translocation. This is comparable to the overall incidence of chromosome abnormality found at birth and is also comparable to the incidence of fetal chromosome abnormality (1.0%) found by amniocentesis at our Department in a group of 2,264 young non......-diabetic women with little risk of contracting genetic disorders. The results suggest that maternal IDDM does not increase the risk of fetal chromosome abnormality and consequently screening by amniocentesis for chromosome abnormalities among diabetic women does not seem to be indicated....

  20. The time of onset of abnormal calcification in spondylometaepiphyseal dysplasia, short limb-abnormal calcification type.

    Science.gov (United States)

    Tüysüz, Beyhan; Gazioğlu, Nurperi; Ungür, Savaş; Aji, Dolly Yafet; Türkmen, Seval

    2009-01-01

    A 1-month-old boy with shortness of extremities on prenatal US was referred to our department with a provisional diagnosis of achondroplasia. His height was normal but he had short extremities and platyspondyly, premature carpal epiphyses on both hands, and short tubular bones with irregular metaphyses on radiographs. Re-evaluation of the patient at the age of 1 year revealed very short height and premature calcification of the costal cartilages and epiphyses. Spondylometaepiphyseal dysplasia (SMED), short limb-abnormal calcification type was diagnosed. This condition is a very rare autosomal recessively inherited disorder, and most of the patients die in early childhood due to neurological involvement. At the age of 2 years and 5 months, a CT scan showed narrowing of the cervical spinal canal. One month later he died suddenly because of spinal cord injury. In conclusion early diagnosis is very important because the recurrence risk is high and patients may die due to early neurological complications. The time of onset of abnormal calcifications, a diagnostic finding of the disease, is at the age of around 1 year in most patients. When abnormal calcifications are not yet present, but radiological changes associated with SMED are present, this rare disease must be considered.