WorldWideScience

Sample records for reported experimental cross

  1. Experimental lithium system. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Kolowith, R.; Berg, J.D.; Miller, W.C.

    1985-04-01

    A full-scale mockup of the Fusion Materials Irradiation Test (FMIT) Facility lithium system was built at the Hanford Engineering Development Laboratory (HEDL). This isothermal mockup, called the Experimental Lithium System (ELS), was prototypic of FMIT, excluding the accelerator and dump heat exchanger. This 3.8 m/sup 3/ lithium test loop achieved over 16,000 hours of safe and reliable operation. An extensive test program demonstrated satisfactory performance of the system components, including the HEDL-supplied electromagnetic lithium pump, the lithium jet target, the purification and characterization hardware, as well as the auxiliary argon and vacuum systems. Experience with the test loop provided important information on system operation, performance, and reliability. This report presents a complete overview of the entire Experimental Lithium System test program and also includes a summary of such areas as instrumentation, coolant chemistry, vapor/aerosol transport, and corrosion.

  2. Experimental simulation of retrodirective cross-eye jamming

    CSIR Research Space (South Africa)

    Du Plessis, WP

    2010-01-01

    Full Text Available Experimental measurements that accurately simulate the effect of a retrodirective cross-eye jammer on a monopulse radar are described. The accuracy of a recently published extended analysis of retrodirective crosseye jamming and the limitations...

  3. Cross-impact analysis experimentation using two techniques to ...

    African Journals Online (AJOL)

    coherency. This paper describes cross-impact analysis experimentation in which a Monte ..... [4] is used to accomplish this computational task. Using this method ..... 202–222 in Baldwin MM (Ed), Portraits of complexity: Applications of systems.

  4. [Fast neutron cross section measurements]. Progress report

    Energy Technology Data Exchange (ETDEWEB)

    Knoll, G.F.

    1992-10-26

    From its inception, the Nuclear Data Project at the University of Michigan has concentrated on two major objectives: (1) to carry out carefully controlled nuclear measurements of the highest possible reliability in support of the national nuclear data program, and (2) to provide an educational opportunity for students with interests in experimental nuclear science. The project has undergone a successful transition from a primary dependence on our photoneutron laboratory to one in which our current research is entirely based on a unique pulsed 14 MeV fast neutron facility. The new experimental facility is unique in its ability to provide nanosecond bursts of 14 MeV neutrons under conditions that are ``clean`` and as scatter-free as possible, and is the only one of its type currently in operation in the United States. It has been designed and put into operation primarily by graduate students, and has met or exceeded all of its important initial performance goals. We have reached the point of its routine operation, and most of the data are now in hand that will serve as the basis for the first two doctoral dissertations to be written by participating graduate students. Our initial results on double differential neutron cross sections will be presented at the May 1993 Fusion Reactor Technology Workshop. We are pleased to report that, after investing several years in equipment assembly and optimization, the project has now entered its ``data production`` phase.

  5. 47 CFR 5.73 - Experimental report.

    Science.gov (United States)

    2010-10-01

    ... 47 Telecommunication 1 2010-10-01 2010-10-01 false Experimental report. 5.73 Section 5.73 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL EXPERIMENTAL RADIO SERVICE (OTHER THAN BROADCAST) Applications and Licenses § 5.73 Experimental report. (a) Unless specifically stated as a condition of...

  6. Experimental Neutrino Physics: Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Lane, Charles E.; Maricic, Jelena

    2012-09-05

    Experimental studies of neutrino properties, with particular emphasis on neutrino oscillation, mass and mixing parameters. This research was pursued by means of underground detectors for reactor anti-neutrinos, measuring the flux and energy spectra of the neutrinos. More recent investigations have been aimed and developing detector technologies for a long-baseline neutrino experiment (LBNE) using a neutrino beam from Fermilab.

  7. Kriging approach for the experimental cross-section covariances estimation

    Directory of Open Access Journals (Sweden)

    Garlaud A.

    2013-03-01

    Full Text Available In the classical use of a generalized χ2 to determine the evaluated cross section uncertainty, we need the covariance matrix of the experimental cross sections. The usual propagation error method to estimate the covariances is hardly usable and the lack of data prevents from using the direct empirical estimator. We propose in this paper to apply the kriging method which allows to estimate the covariances via the distances between the points and with some assumptions on the covariance matrix structure. All the results are illustrated with the 2555Mn nucleus measurements.

  8. Experimental Investigation Of Polymeric Compound Cross Section Springs

    Directory of Open Access Journals (Sweden)

    Mayas Al-Mahasne

    2007-01-01

    Full Text Available This paper presents an experimental investigation of the characteristic of the compound cross section springs on models made from polymeric materials (organic glass. Two constructive variants of the compound spring sections were specified with the help of criteria of similarity. The criterion of similarity of natural and model springs was determined by the simulation method at particular spring deflection. The problem of simulation was brought to accurate determination of the magnitudes that characterize the physical and mechanical properties of materials for natural and model springs. It was experimentally proved that the use of the proposed new type of springs significantly increases the spring stiffness.

  9. [Experimental nuclear physics]. Final report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-04-01

    This is the final report of the Nuclear Physics Laboratory of the University of Washington on work supported in part by US Department of Energy contract DE-AC06-81ER40048. It contains chapters on giant dipole resonances in excited nuclei, nucleus-nucleus reactions, astrophysics, polarization in nuclear reactions, fundamental symmetries and interactions, accelerator mass spectrometry (AMS), ultra-relativistic heavy ions, medium energy reactions, work by external users, instrumentation, accelerators and ion sources, and computer systems. An appendix lists Laboratory personnel, a Ph. D. degree granted in the 1990-1991 academic year, and publications. Refs., 41 figs., 7 tabs.

  10. [Experimental nuclear physics]. Final report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1991-04-01

    This is the final report of the Nuclear Physics Laboratory of the University of Washington on work supported in part by US Department of Energy contract DE-AC06-81ER40048. It contains chapters on giant dipole resonances in excited nuclei, nucleus-nucleus reactions, astrophysics, polarization in nuclear reactions, fundamental symmetries and interactions, accelerator mass spectrometry (AMS), ultra-relativistic heavy ions, medium energy reactions, work by external users, instrumentation, accelerators and ion sources, and computer systems. An appendix lists Laboratory personnel, a Ph. D. degree granted in the 1990-1991 academic year, and publications. Refs., 41 figs., 7 tabs.

  11. Cross-protection between experimental anti-leptospirosis bacterins

    Directory of Open Access Journals (Sweden)

    Cristina Corsi Dib

    2014-09-01

    Full Text Available We investigated the existence of cross-protection between two anti-leptospirosis monovalent experimental bacterins produced with two strains of Leptospira serogroup Pomona: Fromm strain of serovar Kennewicky, isolated from pigs in the United States, and strain GR6 of serovar Pomona isolated from pigs in Brazil. Both were added of aluminum hydroxide as an adjuvant. Experimental bacterins were tested with the hamster potency test in order to assess protection provided against the disease and against the establishment of kidney infection. Controls were polyvalent commercial vaccine produced with Leptospira strains isolated outside Brazil, which included a representative of Pomona serovar, or Sorensen solution added of aluminum hydroxide adjuvant. The challenge was performed with cross-strains of serogroup Pomona tested in accordance with international standards established for the potency test. After 21 days of the challenge, survivors were killed to evaluate the condition of Leptospira renal carrier. Experimental bacterins protected hamsters against homologous and heterologous strains, demonstrating the existence of cross-protection. The commercial vaccine protected the hamsters challenged with both strains, but there was a high proportion of animals diagnosed as renal carriers when the challenge was performed with strain GR6, isolated from pigs in Brazil.

  12. Cross-protection between experimental anti-leptospirosis bacterins

    Science.gov (United States)

    Dib, Cristina Corsi; Gonçales, Amane Paldês; de Morais, Zenaide Maria; de Souza, Gisele Oliveira; Miraglia, Fabiana; Abreu, Patricia Antonia Estima; Vasconcellos, Silvio Arruda

    2014-01-01

    We investigated the existence of cross-protection between two anti-leptospirosis monovalent experimental bacterins produced with two strains of Leptospira serogroup Pomona: Fromm strain of serovar Kennewicky, isolated from pigs in the United States, and strain GR6 of serovar Pomona isolated from pigs in Brazil. Both were added of aluminum hydroxide as an adjuvant. Experimental bacterins were tested with the hamster potency test in order to assess protection provided against the disease and against the establishment of kidney infection. Controls were polyvalent commercial vaccine produced with Leptospira strains isolated outside Brazil, which included a representative of Pomona serovar, or Sorensen solution added of aluminum hydroxide adjuvant. The challenge was performed with cross-strains of serogroup Pomona tested in accordance with international standards established for the potency test. After 21 days of the challenge, survivors were killed to evaluate the condition of Leptospira renal carrier. Experimental bacterins protected hamsters against homologous and heterologous strains, demonstrating the existence of cross-protection. The commercial vaccine protected the hamsters challenged with both strains, but there was a high proportion of animals diagnosed as renal carriers when the challenge was performed with strain GR6, isolated from pigs in Brazil. PMID:25477946

  13. Report on HOM experimental methods and code

    CERN Document Server

    Shinton, I R R; Flisgen, T

    2013-01-01

    Experimental methods and various codes used are reported on with the aim to understand the signals picked up from the higher order modes in the third harmonic cavities within the ACC39 module at FLASH. Both commercial computer codes have been used, and also codes written for the express purpose of understanding the sensitivity of the modal profiles to geometrical errors and other sources of experimental errors.

  14. Yakima Hatchery Experimental Design : Annual Progress Report.

    Energy Technology Data Exchange (ETDEWEB)

    Busack, Craig; Knudsen, Curtis; Marshall, Anne

    1991-08-01

    This progress report details the results and status of Washington Department of Fisheries' (WDF) pre-facility monitoring, research, and evaluation efforts, through May 1991, designed to support the development of an Experimental Design Plan (EDP) for the Yakima/Klickitat Fisheries Project (YKFP), previously termed the Yakima/Klickitat Production Project (YKPP or Y/KPP). This pre- facility work has been guided by planning efforts of various research and quality control teams of the project that are annually captured as revisions to the experimental design and pre-facility work plans. The current objective are as follows: to develop genetic monitoring and evaluation approach for the Y/KPP; to evaluate stock identification monitoring tools, approaches, and opportunities available to meet specific objectives of the experimental plan; and to evaluate adult and juvenile enumeration and sampling/collection capabilities in the Y/KPP necessary to measure experimental response variables.

  15. Experimental Course Report, Grade Nine, No. 1.

    Science.gov (United States)

    Davis, Robert B.

    Reported are the results of an experimental course taught at the ninth grade level. The course included both modern and traditional topics in algebra. Presented are a rationale for the course, a list of the topics included in the course, a description of instructional techniques and methods used in presenting and developing some of the main ideas…

  16. Conceptual design report, CEBAF basic experimental equipment

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1990-04-13

    The Continuous Electron Beam Accelerator Facility (CEBAF) will be dedicated to basic research in Nuclear Physics using electrons and photons as projectiles. The accelerator configuration allows three nearly continuous beams to be delivered simultaneously in three experimental halls, which will be equipped with complementary sets of instruments: Hall A--two high resolution magnetic spectrometers; Hall B--a large acceptance magnetic spectrometer; Hall C--a high-momentum, moderate resolution, magnetic spectrometer and a variety of more dedicated instruments. This report contains a short description of the initial complement of experimental equipment to be installed in each of the three halls.

  17. Kinship and altruism: a cross-cultural experimental study.

    Science.gov (United States)

    Madsen, Elainie A; Tunney, Richard J; Fieldman, George; Plotkin, Henry C; Dunbar, Robin I M; Richardson, Jean-Marie; McFarland, David

    2007-05-01

    Humans are characterized by an unusual level of prosociality. Despite this, considerable indirect evidence suggests that biological kinship plays an important role in altruistic behaviour. All previous reports of the influence of kin selection on human altruism have, however, used correlational (rather than experimental) designs, or imposed only a hypothetical or negligible time cost on participants. Since these research designs fail either to control for confounding variables or to meet the criteria required as a test of Hamilton's rule for kin selection (that the altruist pays a true cost), they fail to establish unequivocally whether kin selection plays a role. We show that individuals from two different cultures behave in accordance with Hamilton's rule by acting more altruistically (imposing a higher physical cost upon themselves) towards more closely related individuals. Three possible sources of confound were ruled out: generational effects, sexual attraction and reciprocity. Performance on the task however did not exhibit a perfect linear relationship with relatedness, which might reflect either the intrusion of other variables (e.g. cultural differences in the way kinship is costed) or that our behavioural measure is insufficiently sensitive to fine-tuned differences in the way individuals view their social world. These findings provide the first unequivocal experimental evidence that kinship plays a role in moderating altruistic behaviour. Kinship thus represents a baseline against which individuals pitch other criteria (including reciprocity, prosociality, obligation and a moral sense) when deciding how to behave towards others.

  18. Experimental and theoretical cross sections for positron scattering from the pentane isomers

    Science.gov (United States)

    Chiari, L.; Zecca, A.; Blanco, F.; García, G.; Brunger, M. J.

    2016-02-01

    Isomerism is ubiquitous in chemistry, physics, and biology. In atomic and molecular physics, in particular, isomer effects are well known in electron-impact phenomena; however, very little is known for positron collisions. Here we report on a set of experimental and theoretical cross sections for low-energy positron scattering from the three structural isomers of pentane: normal-pentane, isopentane, and neopentane. Total cross sections for positron scattering from normal-pentane and isopentane were measured at the University of Trento at incident energies between 0.1 and 50 eV. Calculations of the total cross sections, integral cross sections for elastic scattering, positronium formation, and electronic excitations plus direct ionization, as well as elastic differential cross sections were computed for all three isomers between 1 and 1000 eV using the independent atom model with screening corrected additivity rule. No definitive evidence of a significant isomer effect in positron scattering from the pentane isomers appears to be present.

  19. Optimal Cross-Validation Split Ratio: Experimental Investigation

    DEFF Research Database (Denmark)

    Goutte, Cyril; Larsen, Jan

    1998-01-01

    Cross-validation is a common method for assessing the generalisation ability of a model in order to tune a regularisation parameter or otherhyper-parameters of a learning process. The use of cross-validation requires to set yet an additional parameter, the split rati. While a few texts haveinvest......Cross-validation is a common method for assessing the generalisation ability of a model in order to tune a regularisation parameter or otherhyper-parameters of a learning process. The use of cross-validation requires to set yet an additional parameter, the split rati. While a few texts...

  20. GeNF - Experimental report 2008

    Energy Technology Data Exchange (ETDEWEB)

    Pranzas, Philipp Klaus; Mueller, Martin; Willumeit, Regine; Schreyer, Andreas (eds.) [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Materialforschung

    2009-12-11

    At the Geesthacht Neutron Facility GeNF about 182 experiments were performed in 2008 by GKSS and by or for external users, partners or contractors. In most cases the measurements were performed and analysed in cooperation by the guests, by GKSS staff or by the permanent external user group staff. The activities, which are based on a proposal procedure and on the in house R and D program, are reported in 76 contributions in the present annual experimental report for the year 2008. The contributions may contain several combined experiments. During 2008 the GKSS research reactor FRG-1 achieved an operation time of 175 days at the full 5 MW reactor power providing a neutron flux of ca. 1.4.10{sup 14} thermal neutrons/cm{sup 2} s. The focus of the in house R and D work at GeNF instruments in 2008 was the characterisation of nanostructures in engineering materials, the analysis of stresses and textures in welds and technical structures at SANS-2, DCD, ARES-2 and TEX-2, the structural investigation of hydrogen containing substances such as polymers, colloids and biological macromolecules at SANS-1 as well as the characterisation of magnetic thin films at NeRo, PNR, POLDI and ROeDI. The modern experiment control hardware (e.g. sample environments, like magnets, cryostats or furnaces) and software based on LabView was continuously improved on all instruments. In the appendices I and II the experimental reports of the GKSS outstation at the FRM II are attached as well as of the GKSS outstation at DESY. The massive activity at the FRM II outstation is documented by the increasing number of REFSANS reports, accumulated to nine. Three reports show the activities of GKSS in the field of texture measurement at the instrument STRESS-SPEC. The instrument HARWI II at the synchrotron storage ring DORIS III at DESY is accepted very well by the community and is heavily overbooked in all fields (tomography, diffraction, etc.). After an 8-month shutdown period for an upgrade in the frame

  1. GeNF - experimental report 2003

    Energy Technology Data Exchange (ETDEWEB)

    Schreyer, A.; Vollbrandt, J.; Willumeit, R. (eds.) [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. for Materials Research

    2004-07-01

    At the Geesthacht Neutron Facility GeNF about 210 experiments were performed in 2003 by GKSS and by or for external users, partners or contractors. In most cases the measurements were performed and analysed in cooperation by the guest and by the GKSS staff or by the permanent external user group staff. The activities, which are based on a proposal procedure and on the in house R and D program, are reported in 76 contributions in the present annual experimental report for the year 2003. The contributions may contain one or also several combined experiments. During 2003 the GKSS research reactor FRG-1 achieved an operation time of 252 days at the full 5 MW reactor power providing a neutron flux of ca. 1,4 x 10{sup 14} thermal neutrons / cm{sup 2} s. The cold neutron source was available during the complete operation time. The focus of the in house R and D work at GeNF instruments was the characterisation of metal alloys, the analysis of stresses in welds and technical structures at ARES, FSS, DCD and SANS-2, the structural investigation of hydrogen containing substances such as polymers, colloids and biological macromolecules at SANS-1 as well as the characterisation of magnetic thin films at PNR and ROeDI. The reflectomer TOREMA was thoroughly upgraded to the instrument NeRo and now offers new measurement possibilities. In the appendices the progress of the project REFSANS at FRM-II is reported as well as the experimental activities of the newly installed GKSS outstation HARWI-II at DESY. (orig.)

  2. GeNF - Experimental report 2006

    Energy Technology Data Exchange (ETDEWEB)

    Pranzas, P.K.; Schreyer, A.; Willumeit, R. (eds.) [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. of Materials Research

    2007-07-01

    At the Geesthacht Neutron Facility GeNF about 212 experiments were performed in 2006 by GKSS and by or for external users, partners or contractors. In most cases the measurements were performed and analysed in cooperation by the guests and by the GKSS staff or by the permanent external user group staff. The activities, which are based on a proposal procedure and on the in house R and D program, are reported in 71 contributions in the present annual experimental report for the year 2006. The contributions may contain one or also several combined experiments. During 2006 the GKSS research reactor FRG-1 achieved an operation time of 197 days at the full 5 MW reactor power providing a neutron flux of ca. 1.4 x 10{sup 14} thermal neutrons/cm{sup 2}s. The cold neutron source was available during the complete operation time. The focus of the in house R and D work at GeNF instruments was the characterisation of nanostructures in engineering materials, the analysis of stresses and textures in welds and technical structures at ARES-2, TEX-2, DCD and SANS-2, the structural investigation of hydrogen containing substances such as polymers, colloids and biological macromolecules at SANS-1 as well as the characterisation of magnetic thin films at PNR, NeRo, POLDI and ROeDI. The thoroughly upgraded residual stress diffractomer ARES-2 went in full operation in spring 2006 as well as the new neutron tomography device at GENRA-3. The installation of modern experiment control hardware and software based on LabView was completed on all designated instruments. In the appendices I and II the experimental reports of REFSANS at FRM II are attached as well as of the GKSS outstation HARWI-II at DESY. Both instruments started full operation in 2006. (orig.)

  3. GeNF - Experimental report 2007

    Energy Technology Data Exchange (ETDEWEB)

    Pranzas, P.K.; Schreyer, A.; Willumeit, R. (eds.) [GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Materialforschung

    2008-11-05

    At the Geesthacht Neutron Facility GeNF about 203 experiments were performed in 2007 by GKSS and by or for external users, partners or contractors. In most cases the measurements were performed and analysed in cooperation by the guests and by the GKSS staff or by the permanent external user group staff. The activities, which are based on a proposal procedure and on the in house R and D program, are reported in 70 contributions in the present annual experimental report for the year 2007. The contributions may contain one or also several combined experiments. During 2007 the GKSS research reactor FRG-1 achieved an operation time of 204 days at the full 5 MW reactor power providing a neutron flux of ca. 1.4 x 10{sup 14} thermal neutrons/cm{sup 2}s. In May/June 2007 the FRG-1 was upgraded with a new cold neutron source yielding a flux increase at the five instruments using cold neutrons of up to 40 %. The focus of the in house R and D work at GeNF instruments in 2007 was the characterisation of nano-structures in engineering materials, the analysis of stresses and textures in welds and technical structures at SANS-2, DCD, ARES-2 and TEX-2, the structural investigation of hydrogen containing substances such as polymers, colloids and biological macromolecules at SANS-1 as well as the characterisation of magnetic thin films at NeRo, PNR, POLDI and ROeDI. The modern experiment control hardware and software based on LabView was continuously improved on all instruments. In the appendices I and II the experimental reports of the GKSS outstation at the FRM II are attached as well as of the GKSS outstation at DESY. At the neutron reflectometer REFSANS at FRM II measurements are possible using a broad range of the scattering vector with reflectivities up to 10{sup -7}. Three reports show the activities of GKSS in the field of texture measurement at the instrument STRESS-SPEC. The instrument HARWI II at DESY is accepted very well by the community and is overbooked in all fields

  4. A method of analysing experimental data of nuclear reaction cross sections

    Institute of Scientific and Technical Information of China (English)

    FengJun; ShenWen-Qing

    1997-01-01

    A method of analysing experimental data of nuclear reaction cross sections σr induced by radioactive beam is described.It can be used in analysis of experimental unclear reaction cross section data obtained by Na-isopope radioactive beams on different targets.Neutron halo has not been found in these nuclei.

  5. Analysis of malaria parasite phenotypes using experimental genetic crosses of Plasmodium falciparum

    OpenAIRE

    Ranford-Cartwright, Lisa C; Mwangi, Jonathan M.

    2012-01-01

    We review the principles of linkage analysis of experimental genetic crosses and their application to Plasmodium falciparum. Three experimental genetic crosses have been performed using the human malaria parasite P. falciparum. Linkage analysis of the progeny of these crosses has been used to identify parasite genes important in phenotypes such as drug resistance, parasite growth and virulence, and transmission to mosquitoes. The construction and analysis of genetic maps has been used to char...

  6. Experimental Characterisation of Moreno Cross Slot Couplers for Blass Matrix Design

    Directory of Open Access Journals (Sweden)

    K. Jery Varghese

    1998-10-01

    Full Text Available This paper presents the experimental characterisation of Moreno cross-slot coupler which is the basic building block of multiple beam forming network (Blass matrix. The lack of exact theory of such coupler requires extensive experimental evaluation. A novel test jig has been designed, fabricated and tested for this purpose. The experimental results for different scattering parameters are presented.

  7. Experimental Investigation of Catamaran Cross-Structure Slamming

    Science.gov (United States)

    1975-09-01

    to Investigate the Three-Dimensional Effects of Slamming," NSRDC Report 3543 (Apr 1971). 8 i Carnahan, B. et al., " Applied Numerical Methods ," Chapter...Tests of Cones to Investigate the Three-Dimensional Effects of Slamming," NSRDC Report 3543 (Apr 1971) 8. Carnahan, B. et al., " Applied Numerical Methods ," Chapter

  8. Handbook of LHC Higgs Cross Sections: 3. Higgs Properties Report of the LHC Higgs Cross Section Working Group

    CERN Document Server

    Heinemeyer, S; Passarino, G; Tanaka, R; Andersen, J R; Artoisenet, P; Bagnaschi, E A; Banfi, A; Becher, T; Bernlochner, F U; Bolognesi, S; Bolzoni, P; Boughezal, R; Buarque, D; Campbell, J; Caola, F; Carena, M; Cascioli, F; Chanon, N; Cheng, T; Choi, S Y; David, A; de Aquino, P; Degrassi, G; Del Re, D; Denner, A; van Deurzen, H; Diglio, S; Di Micco, B; Di Nardo, R; Dittmaier, S; Dührssen, M; Ellis, R K; Ferrera, G; Fidanza, N; Flechl, M; de Florian, D; Forte, S; Frederix, R; Frixione, S; Gangal, S; Gao, Y; Garzelli, M V; Gillberg, D; Govoni, P; Grazzini, M; Greiner, N; Griffiths, J; Gritsan, A V; Grojean, C; Hall, D C; Hays, C; Harlander, R; Hernandez-Pinto, R; Höche, S; Huston, J; Jubb, T; Kadastik, M; Kallweit, S; Kardos, A; Kashif, L; Kauer, N; Kim, H; Klees, R; Krämer, M; Krauss, F; Laureys, A; Laurila, S; Lehti, S; Li, Q; Liebler, S; Liu, X; Logan, E; Luisoni, G; Malberti, M; Maltoni, F; Mawatari, K; Maierhoefer, F; Mantler, H; Martin, S; Mastrolia, P; Mattelaer, O; Mazzitelli, J; Mellado, B; Melnikov, K; Meridiani, P; Miller, D J; Mirabella, E; Moch, S O; Monni, P; Moretti, N; Mück, A; Mühlleitner, M; Musella, P; Nason, P; Neu, C; Neubert, M; Oleari, C; Olsen, J; Ossola, G; Peraro, T; Peters, K; Petriello, F; Piacquadio, G; Potter, C T; Pozzorini, S; Prokofiev, K; Puljak, I; Rauch, M; Rebuzzi, D; Reina, L; Rietkerk, R; Rizzi, A; Rotstein-Habarnau, Y; Salam, G P; Sborlini, G; Schissler, F; Schönherr, M; Schulze, M; Schumacher, M; Siegert, F; Slavich, P; Smillie, J M; Stål, O; von Soden-Fraunhofen, J F; Spira, M; Stewart, I W; Tackmann, F J; Taylor, P T E; Tommasini, D; Thompson, J; Thorne, R S; Torrielli, P; Tramontano, F; Tran, N V; Trócsányi, Z; Ubiali, M; Vazquez Acosta, M; Vickey, T; Vicini, A; Waalewijn, W J; Wackeroth, D; Wagner, C; Walsh, J R; Wang, J; Weiglein, G; Whitbeck, A; Williams, C; Yu, J; Zanderighi, G; Zanetti, M; Zaro, M; Zerwas, P M; Zhang, C; Zirke, T J E; Zuberi, S

    2013-01-01

    This Report summarizes the results of the activities in 2012 and the first half of 2013 of the LHC Higgs Cross Section Working Group. The main goal of the working group was to present the state of the art of Higgs Physics at the LHC, integrating all new results that have appeared in the last few years. This report follows the first working group report Handbook of LHC Higgs Cross Sections: 1. Inclusive Observables (CERN-2011-002) and the second working group report Handbook of LHC Higgs Cross Sections: 2. Differential Distributions (CERN-2012-002). After the discovery of a Higgs boson at the LHC in mid-2012 this report focuses on refined prediction of Standard Model (SM) Higgs phenomenology around the experimentally observed value of 125-126 GeV, refined predictions for heavy SM-like Higgs bosons as well as predictions in the Minimal Supersymmetric Standard Model and first steps to go beyond these models. The other main focus is on the extraction of the characteristics and properties of the newly discovered p...

  9. Handbook of LHC Higgs Cross Sections: 3. Higgs Properties Report of the LHC Higgs Cross Section Working Group

    CERN Document Server

    Heinemeyer, S; Passarino, G; Tanaka, R; Andersen, J R; Artoisenet, P; Bagnaschi, E A; Banfi, A; Becher, T; Bernlochner, F U; Bolognesi, S; Bolzoni, P; Boughezal, R; Buarque, D; Campbell, J; Caola, F; Carena, M; Cascioli, F; Chanon, N; Cheng, T; Choi, S Y; David, A; de Aquino, P; Degrassi, G; Del Re, D; Denner, A; van Deurzen, H; Diglio, S; Di Micco, B; Di Nardo, R; Dittmaier, S; Dührssen, M; Ellis, R K; Ferrera, G; Fidanza, N; Flechl, M; de Florian, D; Forte, S; Frederix, R; Frixione, S; Gangal, S; Gao, Y; Garzelli, M V; Gillberg, D; Govoni, P; Grazzini, M; Greiner, N; Griffiths, J; Gritsan, A V; Grojean, C; Hall, D C; Hays, C; Harlander, R; Hernandez-Pinto, R; Höche, S; Huston, J; Jubb, T; Kadastik, M; Kallweit, S; Kardos, A; Kashif, L; Kauer, N; Kim, H; Klees, R; Krämer, M; Krauss, F; Laureys, A; Laurila, S; Lehti, S; Li, Q; Liebler, S; Liu, X; Logan, E; Luisoni, G; Malberti, M; Maltoni, F; Mawatari, K; Maierhoefer, F; Mantler, H; Martin, S; Mastrolia, P; Mattelaer, O; Mazzitelli, J; Mellado, B; Melnikov, K; Meridiani, P; Miller, D J; Mirabella, E; Moch, S O; Monni, P; Moretti, N; Mück, A; Mühlleitner, M; Musella, P; Nason, P; Neu, C; Neubert, M; Oleari, C; Olsen, J; Ossola, G; Peraro, T; Peters, K; Petriello, F; Piacquadio, G; Potter, C T; Pozzorini, S; Prokofiev, K; Puljak, I; Rauch, M; Rebuzzi, D; Reina, L; Rietkerk, R; Rizzi, A; Rotstein-Habarnau, Y; Salam, G P; Sborlini, G; Schissler, F; Schönherr, M; Schulze, M; Schumacher, M; Siegert, F; Slavich, P; Smillie, J M; Stål, O; von Soden-Fraunhofen, J F; Spira, M; Stewart, I W; Tackmann, F J; Taylor, P T E; Tommasini, D; Thompson, J; Thorne, R S; Torrielli, P; Tramontano, F; Tran, N V; Trócsányi, Z; Ubiali, M; Vazquez Acosta, M; Vickey, T; Vicini, A; Waalewijn, W J; Wackeroth, D; Wagner, C; Walsh, J R; Wang, J; Weiglein, G; Whitbeck, A; Williams, C; Yu, J; Zanderighi, G; Zanetti, M; Zaro, M; Zerwas, P M; Zhang, C; Zirke, T J E; Zuberi, S

    2013-01-01

    This Report summarizes the results of the activities in 2012 and the first half of 2013 of the LHC Higgs Cross Section Working Group. The main goal of the working group was to present the state of the art of Higgs Physics at the LHC, integrating all new results that have appeared in the last few years. This report follows the first working group report Handbook of LHC Higgs Cross Sections: 1. Inclusive Observables (CERN-2011-002) and the second working group report Handbook of LHC Higgs Cross Sections: 2. Differential Distributions (CERN-2012-002). After the discovery of a Higgs boson at the LHC in mid-2012 this report focuses on refined prediction of Standard Model (SM) Higgs phenomenology around the experimentally observed value of 125-126 GeV, refined predictions for heavy SM-like Higgs bosons as well as predictions in the Minimal Supersymmetric Standard Model and first steps to go beyond these models. The other main focus is on the extraction of the characteristics and properties of the newly discovered p...

  10. Biodegradation of differently cross-linked collagen membranes: an experimental study in the rat.

    NARCIS (Netherlands)

    Rothamel, D.; Schwarz, F.; Sager, M.; Herten, M. van; Sculean, A.; Becker, J.M.

    2005-01-01

    The aim of the present study was to compare the biodegradation of differently cross-linked collagen membranes in rats. Five commercially available and three experimental membranes (VN) were included: (1) BioGide (BG) (non-cross-linked porcine type I and III collagens), (2) BioMend (BM), (3) BioMendE

  11. Experimental study of the cross-sections of alpha-particle induced reactions on $^{209}$Bi

    CERN Document Server

    Hermanne, A; Shubin, Yu N; Szucs, Z; Takács, S; Tarkanyi, F; 10.1016/j.apradiso.2005.01.015

    2005-01-01

    alpha -particle-induced nuclear reactions for generation of /sup 211 /At used in therapeutic nuclear medicine and possible contaminants were investigated with the stacked foil activation technique on natural bismuth targets up to E/sub alpha /=39 MeV. Excitation functions are reported for the reactions /sup 209/Bi( alpha ,2n)/sup 211/At, /sup 209/Bi( alpha ,3n)/sup 210/At and /sup 209/Bi( alpha , x)/sup 210/Po. Results obtained from direct alpha -emission measurements and gamma -spectra from decay products are compared and correspond well with earlier literature values. Thick target yields have been deduced from the experimental cross-sections and optimised production pathways for minimal contamination are presented. A comparison with the results of the theoretical model code ALICE-IPPE is discussed.

  12. Comparison of (n,2n) and (n,3n) reaction cross sections for fission products in JENDL-3.2 with available experimental and other evaluated cross section data

    Energy Technology Data Exchange (ETDEWEB)

    Manokhin, Vassily N. [Russian Nuclear Data Center, Institute of Physics and Power Engineering (Russian Federation); Odano, Naoteru; Hasegawa, Akira [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

    2001-07-01

    In this report, results of comparison of (n,2n) and (n,3n) reaction cross sections for 155 nuclei (Ge-Tb) in JENDL-3.2 with available experimental data, various evaluated data, and those estimated from systematics are summarized to assess validity of cross sections for threshold reactions for fission product nuclei in JENDL-3.2. Plots for comparisons are compiled and issues in cross section data in JENDL-3.2 are also discussed. (author)

  13. Derivation of capture and reaction cross sections from experimental quasi-elastic and elastic backscattering probabilities

    CERN Document Server

    Sargsyan, V V; Antonenko, N V; Gomes, P R S

    2013-01-01

    The direct measurement of the reaction or capture (fusion) cross section is a difficult task since it would require the measurement of individual cross sections of many reaction channels, and most of them could be reached only by specific experiments. This would require different experimental set-ups not always available at the same laboratory and, consequently, such direct measurements would demand a large amount of beam time and would take probably some years to be reached. Because of that, the measurements of elastic scattering angular distributions that cover full angular ranges and optical model analysis have been used for the determination of reaction cross sections. This traditional method consists in deriving the parameters of the complex optical potentials which fit the experimental elastic scattering angular distributions and then of deriving the reaction cross sections predicted by these potentials. Even so, both the experimental part and the analysis of this latter method are not so simple. In the...

  14. Do Cross-Listed Firms Report Better Social Responsibility Performance?

    Directory of Open Access Journals (Sweden)

    Liu Guangyou

    2017-01-01

    Full Text Available This paper investigates the corporate social responsibility (CSR disclosure of cross-listed companies in China, to bridge the gap between existent CSR literature and the literature on cross-listing. Mann- Whitney-U and Wilcoxon ranking tests document the traditional bonding effect regarding reported corporate financial performance. Furthermore, the test results and findings of this study extend the financial bonding effect to other dimensions of corporate responsibility. In addition to better economic returns to owners, the bonding effect marks better reported CSR performance for cross-listed companies in terms of pay raises for employees, creation of new jobs, desirable stock option plans for management, and increased input in environmental protection and energy-saving activities.

  15. Heavy Ion SEU Cross Section Calculation Based on Proton Experimental Data, and Vice Versa

    CERN Document Server

    Wrobel, F; Pouget, V; Dilillo, L; Ecoffet, R; Lorfèvre, E; Bezerra, F; Brugger, M; Saigné, F

    2014-01-01

    The aim of this work is to provide a method to calculate single event upset (SEU) cross sections by using experimental data. Valuable tools such as PROFIT and SIMPA already focus on the calculation of the proton cross section by using heavy ions cross-section experiments. However, there is no available tool that calculates heavy ion cross sections based on measured proton cross sections with no knowledge of the technology. We based our approach on the diffusion-collection model with the aim of analyzing the characteristics of transient currents that trigger SEUs. We show that experimental cross sections could be used to characterize the pulses that trigger an SEU. Experimental results allow yet defining an empirical rule to identify the transient current that are responsible for an SEU. Then, the SEU cross section can be calculated for any kind of particle and any energy with no need to know the Spice model of the cell. We applied our method to some technologies (250 nm, 90 nm and 65 nm bulk SRAMs) and we sho...

  16. Geothermal Loop Experimental Facility. Final report

    Energy Technology Data Exchange (ETDEWEB)

    1980-04-01

    Research at the Geothermal Loop Experimental Facility was successfully concluded in September 1979. In 13,000 hours of operation over a three and one half year period, the nominal 10 megawatt electrical equivalent GLEF provided the opportunity to identify problems in working with highly saline geothermal fluids and to develop solutions that could be applied to a commercial geothermal power plant producing electricity. A seven and one half year period beginning in April 1972, with early well flow testing and ending in September 1979, with the completion of extensive facility and reservoir operations is covered. During this period, the facility was designed, constructed and operated in several configurations. A comprehensive reference document, addressing or referencing documentation of all the key areas investigated is presented.

  17. Experimental demonstration of a four-port photonic crystal cross-waveguide structure

    DEFF Research Database (Denmark)

    Yu, Yi; Heuck, Mikkel; Ek, Sara;

    2012-01-01

    We report the design and fabrication of a four-port InP photonic crystal cavity-waveguide structure in which two crossing waveguides intersect in a cavity. Transmission measurements show that by exploiting mode-gap effects, high cross-talk suppression between the two waveguides can be obtained...

  18. The experimental isomeric cross-section ratio in the nuclear activation technique

    Science.gov (United States)

    Vänskä, R.; Rieppo, R.

    1981-02-01

    First, the experimental isomeric cross-section ratio is discussed considering a single metastable state induced. The experimental ratio is given in a straightforward and exact formula, which is generally applicable to any incident particle activation and to any isomeric pair of an exclusive, fractional or non-existing isomeric transition decay. Second, the derived experimental isomeric yield ration is adapted for the present work where neutron induced reactions are considered and gamma-ray spectrometry is utilized in the determination of the 14-15 MeV neutron activation cross-sections and isomeric cross-section ratios for the germanium reactions, 74Ge(n, α) 71m,gZn and 76Ge(n, 2n) 75m,gGe, leading to single metastable and ground states in the product.

  19. [Experimental nuclear physics]. Annual report 1988

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1988-05-01

    This is the May 1988 annual report of the Nuclear Physics Laboratory of the University of Washington. It contains chapters on astrophysics, giant resonances, heavy ion induced reactions, fundamental symmetries, polarization in nuclear reactions, medium energy reactions, accelerator mass spectrometry (AMS), research by outside users, Van de Graaff and ion sources, the Laboratory`s booster linac project work, instrumentation, and computer systems. An appendix lists Laboratory personnel, Ph.D. degrees granted in the 1987-88 academic year, and publications. Refs., 27 figs., 4 tabs.

  20. Individualism, authoritarianism, and attitudes toward assisted death: cross-cultural, cross-regional, and experimental evidence.

    Science.gov (United States)

    Kemmelmeier, Markus; Wieczorkowska, Grazyna; Erb, Hans-Peter; Burnstein, Eugene

    2002-01-01

    We hypothesized that in individualistic cultures, individualism predicts positive attitudes toward assisted death, whereas authoritarianism is negatively associated with favorable views of this issue. Study 1 confirmed this hypothesis in a Polish sample (n=100). Study 2, using a German sample (n=102), found the predicted relationships for forms of assisted death that involved the individual self-determination of a terminally ill patient. In Study 3 (n=72), we found experimental evidence that priming individualistic aspects of the self-concept results in more favorable views of physician-assisted suicide. Using a representative sample (n=1158), Study 4 found that across the United States, regional levels of individualism are reflected in corresponding patterns of support for assisted suicide. The discussion focuses on assisted suicide as a cultural phenomenon and explores the implications of growing levels of individualism for public opinion and policy on assisted suicide.

  1. Final Report: Pilot-scale Cross-flow Filtration Test - Envelope A + Entrained Solids

    Energy Technology Data Exchange (ETDEWEB)

    Duignan, M.R.

    2000-06-27

    This report discusses the results of the operation of a cross-flow filter in a pilot-scale experimental facility that was designed, built, and run by the Experimental Thermal Fluids Laboratory of the Savannah River Technology Center of the Westinghouse Savannah River Company.This filter technology was evaluated for its inclusion in the pretreatment section of the nuclear waste stabilization plant being designed by BNFL, Inc. This plant will be built at the U.S. Department of Energy's Hanford Site as part of the River Protection Project.

  2. Report on the cross border movement of children

    OpenAIRE

    Society for Advanced Legal Studies, Family Law Working Group

    1999-01-01

    Report by a Working Group of practitioners and academic lawyers who have expertise in family law, and an interest in and commitment to that field of law. The papers take a contemporary view of problems and issues relating to the cross border movement of children. They cover a wide range of topics including international child abduction, international adoption, EC law, Shari'a law, immigration and movement of children for abusive purposes.

  3. Experimental Investigation on Cross Flow of Wedge-shaped Gap in the core of Prismatic VHTR

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Jeong Hun; Park, Goon Cherl; Cho, Hyoung Kyu [Seoul National University, Seoul (Korea, Republic of); Yoon, Su Jong [Idaho National Laboratory, Idaho Falls (United States)

    2014-10-15

    The core of the PMR type reactor consists of assemblies of hexagonal graphite blocks. The graphite blocks have lots of advantages for neutron economy and high temperature structural integrity. The height and flat-to-flat width of fuel bock are 793 mm and 360 mm, respectively. Each block has 108 coolant channels of which the diameter is 16 mm. And there are gaps between blocks not only vertically but also horizontally for reloading of the fuel elements. The vertical gap induces the bypass flow and through the horizontal gap the cross flow is formed. Since the complicated flow distribution occurs by the bypass flow and cross flow, flow characteristics in the core of the PMR reactor cannot be treated as a simple pipe flow. The fuel zone of the PMR core consists of multiple layers of fuel blocks. The shape change of the fuel blocks could be caused by the thermal expansion and fast-neutron induced shrinkage. It could make different axial shrinkage of fuel block and this leads to wedge-shaped gaps between two stacked fuel blocks. The cross flow is often considered as a leakage flow through the horizontal gap between stacked fuel blocks and it complicates the flow distribution in the reactor core by connecting the coolant channel and the bypass gap. Moreover, the cross flow could lead to uneven coolant distribution and consequently cause superheating of individual fuel element zones with increased fission product release. Since the core cross flow has a negative impact on safety and efficiency of VHTR, core cross flow phenomena have to be investigated to improve the core thermal margin of VHTR. To develop the cross flow loss coefficient model for determination of the flow distribution for PMR core analysis codes, study on cross flow for PMR200 core is essential. In particular, to predict the amount of flow through the cross flow gap, obtaining accurate flow loss coefficient is important. In this study, the full-scale cross flow experimental facility was constructed to

  4. Theoretical and experimental differential cross sections for electron impact excitation of the electronic bands of furfural

    Science.gov (United States)

    Jones, D. B.; Neves, R. F. C.; Lopes, M. C. A.; da Costa, R. F.; do N. Varella, M. T.; Bettega, M. H. F.; Lima, M. A. P.; García, G.; Limão-Vieira, P.; Brunger, M. J.

    2016-03-01

    We report results from a joint experimental and theoretical investigation into electron scattering from the important industrial species furfural (C5H4O2). Specifically, differential cross sections (DCSs) have been measured and calculated for the electron-impact excitation of the electronic states of C5H4O2. The measurements were carried out at energies in the range 20-40 eV, and for scattered-electron angles between 10° and 90°. The energy resolution of those experiments was typically ˜80 meV. Corresponding Schwinger multichannel method with pseudo-potential calculations, for energies between 6-50 eV and with and without Born-closure, were also performed for a sub-set of the excited electronic-states that were accessed in the measurements. Those calculations were undertaken at the static exchange plus polarisation-level using a minimum orbital basis for single configuration interaction (MOB-SCI) approach. Agreement between the measured and calculated DCSs was qualitatively quite good, although to obtain quantitative accord, the theory would need to incorporate even more channels into the MOB-SCI. The role of multichannel coupling on the computed electronic-state DCSs is also explored in some detail.

  5. Pu239 Cross-Section Variations Based on Experimental Uncertainties and Covariances

    Energy Technology Data Exchange (ETDEWEB)

    Sigeti, David Edward [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Williams, Brian J. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Parsons, D. Kent [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-10-18

    Algorithms and software have been developed for producing variations in plutonium 239 neutron cross sections based on experimental uncertainties and covariances. The varied cross- section sets may be produced as random samples from the multi- variate normal distribution defined by an experimental mean vector and covariance matrix, or they may be produced as Latin- Hypercube/Orthogonal-Array samples (based on the same means and covariances) for use in parametrized studies. The variations obey two classes of constraints that are obligatory for cross-section sets and which put related constraints on the mean vector and covariance matrix that detemine the sampling. Because the experimental means and covariances do not obey some of these constraints to sufficient precision, imposing the constraints requires modifying the experimental mean vector and covariance matrix. Modification is done with an algorithm based on linear algebra that minimizes changes to the means and covariances while insuring that the operations that impose the different constraints do not conflict with each other.

  6. Pu239 Cross-Section Variations Based on Experimental Uncertainties and Covariances

    Energy Technology Data Exchange (ETDEWEB)

    Sigeti, David Edward [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Williams, Brian J. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Parsons, D. Kent [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-10-18

    Algorithms and software have been developed for producing variations in plutonium-239 neutron cross sections based on experimental uncertainties and covariances. The varied cross-section sets may be produced as random samples from the multi-variate normal distribution defined by an experimental mean vector and covariance matrix, or they may be produced as Latin-Hypercube/Orthogonal-Array samples (based on the same means and covariances) for use in parametrized studies. The variations obey two classes of constraints that are obligatory for cross-section sets and which put related constraints on the mean vector and covariance matrix that detemine the sampling. Because the experimental means and covariances do not obey some of these constraints to sufficient precision, imposing the constraints requires modifying the experimental mean vector and covariance matrix. Modification is done with an algorithm based on linear algebra that minimizes changes to the means and covariances while insuring that the operations that impose the different constraints do not conflict with each other.

  7. Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

    Energy Technology Data Exchange (ETDEWEB)

    Actis, S. [Paul-Scherrer-Institute Wuerenlingen and Villigen, Villigen (Switzerland); Arbuzov, A. [Joint Institute for Nuclear Research, Dubna (Russian Federation). Bogoliubov Lab. of Theoretical Physics; Balossini, G. [Pavia Univ. (Italy). Dipt. di Fisica Nucleare e Teorica; INFN, Pavia (IT)] (and others)

    2009-12-15

    We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low energy e{sup +}e{sup -} colliders in Beijing, Frascati, Ithaca, Novosibirsk, Stanford and Tsukuba and on {tau} decays. We sketch the prospects in these fields for the years to come. We emphasise the status and the precision of the Monte Carlo generators used to analyse the hadronic cross section measurements obtained as well with energy scans as with radiative return, to determine luminosities and {tau} decays. The radiative corrections fully or approximately implemented in the various codes and the contribution of the vacuum polarisation are discussed. (orig.)

  8. Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

    Energy Technology Data Exchange (ETDEWEB)

    Actis, S. [Paul Scherrer Inst., Wuerenlingen and Villigen, Villigen PSI (Switzerland); Arbuzov, A.; Kuraev, E.A. [Joint Inst. for Nuclear Research, Bogoliubov Lab. of Theoretical Physics, Dubna (Russian Federation); Balossini, G.; Bignamini, C.; Montagna, G. [Univ. di Pavia, Dipt. di Fisica Nucleare e Teorica, Pavia (Italy); INFN, Sezione di Pavia, Pavia (Italy); Beltrame, P. [CERN, Physics Dept., Geneve (Switzerland); Bonciani, R. [Univ. Joseph Fourier/CNRS-IN2P3/INPG, Lab. de Physique Subatomique et de Cosmologie, Grenoble (France); Carloni Calame, C.M. [Univ. of Southampton, School of Physics and Astronomy, Southampton (United Kingdom); Cherepanov, V.; Eidelman, S.; Fedotovich, G.V. [Budker Inst. of Nuclear Physics, Novosibirsk (Russian Federation); Novosibirsk State Univ., Novosibirsk (Russian Federation); Czakon, M. [RWTH Aachen Univ., Inst. fuer Theoretische Physik E, Aachen (Germany); Czyz, H.; Gluza, J.; Gunia, M. [Univ. of Silesia, Inst. of Physics, Katowice (Poland); Denig, A.; Hafner, A.; Mueller, S.E. [Johannes Gutenberg-Univ. Mainz, Inst. fuer Kernphysik, Mainz (Germany); Ferroglia, A. [Johannes Gutenberg-Univ., Inst. fuer Physik, THEP, Mainz (Germany); Grzelinska, A.; Jadach, S.; Was, Z. [Inst. of Nuclear Physics Polish Academy of Sciences, Cracow (Poland); Ignatov, F.; Lukin, P.; Sibidanov, A.L. [Budker Inst. of Nuclear Physics, Novosibirsk (Russian Federation); Jegerlehner, F. [Inst. fuer Physik Humboldt-Univ. zu Berlin, Berlin (Germany); Univ. of Silesia, Inst. of Physics, Katowice (Poland); Deutsches Elektronen-Synchrotron, DESY, Zeuthen (Germany); Kalinowski, A. [LLR-Ecole Polytechnique, Palaiseau (France); Kluge, W. [Univ. Karlsruhe, Inst. fuer Experimentelle Kernphysik, Karlsruhe (Germany); Korchin, A. [National Science Center ' Kharkov Inst. of Physics and Technology' , Kharkov (Ukraine); Kuehn, J.H. [Univ. Karlsruhe, Inst. fuer Theoretische Teilchenphysik, Karlsruhe (Germany)] [and others

    2010-04-15

    We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low-energy e {sup +} e {sup -} colliders in Beijing, Frascati, Ithaca, Novosibirsk, Stanford and Tsukuba and on {tau} decays. We sketch the prospects in these fields for the years to come. We emphasise the status and the precision of the Monte Carlo generators used to analyse the hadronic cross section measurements obtained as well with energy scans as with radiative return, to determine luminosities and {tau} decays. The radiative corrections fully or approximately implemented in the various codes and the contribution of the vacuum polarisation are discussed. (orig.)

  9. Quest for precision in hadronic cross sections at low energy: Monte Carlo tools vs. experimental data

    CERN Document Server

    Actis, S; Arbuzov, A; Balossini, G; Beltrame, P; Bignamini, C; Bonciani, R; Carloni Calame, C M; Cherepanov, V; Czakon, M; Czyz, H; Denig, A; Eidelman, S; Fedotovich, G V; Ferroglia, A; Gluza, J; Grzeli nska, A; Gunia, M; Hafner, A; Ignatov, F; Jadach, S; Jegerlehner, F; Kalinowski, A; Kluge, W; Korchin, A; Kuhn, J H; Kuraev, E A; Lukin, P; Mastrolia, P; Montagna, G; Muller, S E; Nguyen, F; Nicrosini, O; Nomura, D; Pakhlova, G; Pancheri, G; Passera, M; Penin, A; Piccinini, F; Placzek, W; Przedzinski, T; Remiddi, E; Riemann, T; Rodrigo, G; Roig, P; Shekhovtsova, O; Shen, C P; Sibidanov, A L; Teubner, T; Trentadue, L; Venanzoni, G; van der Bij, J J; Wang, P; Ward, B F L; Was, Z; Worek, M; Yuan, C Z

    2010-01-01

    We present the achievements of the last years of the experimental and theoretical groups working on hadronic cross section measurements at the low energy e+e- colliders in Beijing, Frascati, Ithaca, Novosibirsk, Stanford and Tsukuba and on tau decays. We sketch the prospects in these fields for the years to come. We emphasise the status and the precision of the Monte Carlo generators used to analyse the hadronic cross section measurements obtained as well with energy scans as with radiative return, to determine luminosities and tau decays. The radiative corrections fully or approximately implemented in the various codes and the contribution of the vacuum polarisation are discussed.

  10. 49 CFR 234.9 - Grade crossing signal system failure reports.

    Science.gov (United States)

    2010-10-01

    ... 49 Transportation 4 2010-10-01 2010-10-01 false Grade crossing signal system failure reports. 234... PLANS Reports and Plans § 234.9 Grade crossing signal system failure reports. Each railroad shall report to FRA within 15 days each activation failure of a highway-rail grade crossing warning system....

  11. Income Mobility Breeds Tolerance for Income Inequality: Cross-National and Experimental Evidence.

    Science.gov (United States)

    Shariff, Azim F; Wiwad, Dylan; Aknin, Lara B

    2016-05-01

    American politicians often justify income inequality by referencing the opportunities people have to move between economic stations. Though past research has shown associations between income mobility and resistance to wealth redistribution policies, no experimental work has tested whether perceptions of mobility influence tolerance for inequality. In this article, we present a cross-national comparison showing that income mobility is associated with tolerance for inequality and experimental work demonstrating that perceptions of higher mobility directly affect attitudes toward inequality. We find support for both the prospect of upward mobility and the view that peoples' economic station is the product of their own efforts, as mediating mechanisms.

  12. Experimental demonstration of a crossed cubes nuller for coronagraphy and interferometry

    CERN Document Server

    Henault, Francois; Bourdarot, Guillaume; Spang, Alain

    2016-01-01

    In this communication we present the first experimental results obtained on the Crossed-cubes nuller (CCN), that is a new type of Achromatic phase shifter (APS) based on a pair of crossed beamsplitter cubes. We review the general principle of the CCN, now restricted to two interferometric outputs for achieving better performance, and describe the experimental apparatus developed in our laboratory. It is cheap, compact, and easy to align. The results demonstrate a high extinction rate in monochromatic light and confirm that the device is insensitive to its polarization state. Finally, the first lessons from the experiment are summarized and discussed in view of future space missions searching for extra-solar planets located in the habitable zone, either based on a coronagraphic telescope or a sparse-aperture nulling interferometer

  13. Experimental Investigation on the Heat Transfer Coefficient of the Thermosyphon Cross Section Shape

    Directory of Open Access Journals (Sweden)

    Mohammed M. I. Hammad,

    2015-03-01

    Full Text Available Two phase closed thermosyphon is a good heat transfer device. A large heat is transferred from evaporator to condenser with relatively a small temperature difference. In the present work, the heat transfer performance of two phase closed thermosyphon is analyzed experimentally with different cross section shape for the thermosyphon tube. A copper thermosyphon has been constructed with three different cross section shape (circular, square and rectangular having the same hydraulic diameter and length. Methanol is used as the working fluid. The temperature distribution across the thermosyphon outer surface was measured and recorded using thermocouples. The results showed that the heat transfer coefficient increases with the increase of input power, thermal resistance is indirectly proportional to the input power. The maximum heat transfer coefficient (1815 W/m2C for square cross section at the input power (500 W.

  14. Theoretical and experimental study of a cross-flow induced-draft cooling tower

    Directory of Open Access Journals (Sweden)

    Abo Elazm Mahmoud Mohamed

    2009-01-01

    Full Text Available The main objective of this study is to find a proper solution for the cross-flow water cooling tower problem, also to find an empirical correlation's controlling heat and mass transfer coefficients as functions of inlet parameters to the tower. This is achieved by constructing an experimental rig and a computer program. The computer simulation solves the problem numerically. The apparatus used in this study comprises a cross-flow cooling tower. From the results obtained, the 'characteristic curve' of cross-flow cooling towers was constructed. This curve is very helpful for designers in order to find the actual value of the number of transfer units, if the values of inlet water temperature or inlet air wet bulb temperature are changed. Also an empirical correlation was conducted to obtain the required number of transfer units of the tower in hot water operation. Another correlation was found to obtain the effectiveness in the wet bulb operation.

  15. Flow Field and Performance of Cross Flow Fans--Experimental and Theoretical Investigations

    Institute of Scientific and Technical Information of China (English)

    Martin Gabi; Simon Dornstetter; Toni Klemm

    2003-01-01

    Due to the construction and the operating principle the prediction of performance of Cross Flow Fans (CFF) is difficult and the knowledge about the internal flow regime is limited. To investigate the impact of geometrical parameters on the performance of CFF, experimental investigations, using Particle Imaging Velocimetry (PIV),and CFD calculations were carried out. Some results of PIV measurements and CFD calculations are presented,which give an impression of the internal flow and confirm the numerical calculations.

  16. Experimental Investigation of Micro Heat Pipes of Different Cross-Sections Having Same Hydraulic Diameter

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Effects of micro heat pipe (MHP) cross-sections and orientations on its thermal perforrnance are experimentally investigated in this study. Tests are conducted using five different cross-sections (circular, semicircular, elliptical,semi-elliptical and rectangular) of micro heat pipes having same hydraulic diameter of 3 mm placed at three different inclination angles (0°, 45°, 90°), where water is used as the working fluid. Evaporator section of the MHP is heated by an electric heater and the condenser section is cooled by circulation of water in an annular space between condenser section and the water jacket. Temperatures at different locations of the MHP are measured using five calibrated K type thermocouples. Heat supply is varied using a voltage regulator which is measured by a precision ammeter and a voltmeter. It is found that thermal performance tends to deteriorate as the MHP is flattened.Thus among all cross-sections of MHP, circular one exhibits the best thermal performance in terms of heat flux dissipation followed by semi-elliptical, semi-circular, elliptical and rectangular cross-sections. Moreover, its heat transfer capability also decreases with decreasing of its inclination angle. Finally, a correlation is developed which covers all the experimental data within +7%.

  17. Experimental study on the performance limitation of micro heat pipes of non circular cross-sections

    Directory of Open Access Journals (Sweden)

    Mahmood Lutful Sakib

    2008-01-01

    Full Text Available An experimental study of three different cross-sections (circular, semicircular and rectangular of micro heat pipes having same hydraulic diameter (D= 3mm is carried out at three different inclination angles (0°, 45°, 90° using water as the working fluid. Evaporator section of the pipe is heated by an electric heater and the condenser section is cooled by water circulation in an annular space between the condenser section and the water jacket. Temperatures at different locations of the pipe are measured using five calibrated K type thermocouples. Heat supply is varied using a voltage regulator which is measured by a precision ammeter and a voltmeter. It is found that thermal performance tends to deteriorate as the micro heat pipe is flattened. Thus among all cross-sections of the pipes circular cross-section exhibits the best thermal performance followed by semicircular and rectangular cross-sections. Moreover maximum heat transfer capability of the pipes also decreases with decreasing of its inclination angle. A correlation is developed using all the gathered data of the present study to predict the heat transfer coefficient of micro heat pipes of different cross-sections placed at different inclination angles.

  18. Factors influencing fecundity in experimental crosses of water lotus (Nelumbo nucifera Gaertn. cultivars

    Directory of Open Access Journals (Sweden)

    Teng Nian-Jun

    2012-06-01

    Full Text Available Abstract Background Breeding programs for the water lotus (Nelumbo nucifera are hampered by an inability to account for variation in seed set associated with crosses between different cultivars. We studied seed set in two reciprocal crosses between lotus cultivars (‘Guili’ × ‘Aijiangnan’ and ‘Molingqiuse’ × ‘Qinhuaiyanzhi' to obtain insights into factors that govern fecundity in these experimental hybrids. Pollen viability, stigma receptivity and embryo development were compared for each hybrid and reciprocal cross. Results Pollen viability of the individual cultivars ranged from 4.1% to 20.2%, with the highest level (>11.9% for all cultivars observed from the earliest collected grains (05:00–06:00 a.m.. Stigmatic pollen germination peaked at 4 h after pollination and varied from 4.8 to 60.6 grains per stigma among the crosses. Production of normal embryos ranged from 7.6% to 58.8% at 1 d after pollination and from 0 to 25% by 11 d after pollination. Seed set in crosses (0.2–23.3% was generally lower than in open-pollinated plants (8.4–26.5%. Similar to the germination results, seed set was substantially reduced in both reciprocal crosses. Conclusions These results suggested that poor pollen fertility, low stigma receptivity, and embryo abortion were responsible for the failure of the crosses ‘Molingqiuse’ × ‘Qinhuaiyanzhi’, ‘Qinhuaiyanzhi’ × ‘Molingqiuse’, and ‘Aijiangnan’ × ‘Guili’.

  19. Biodegradation of differently cross-linked collagen membranes: an experimental study in the rat.

    Science.gov (United States)

    Rothamel, Daniel; Schwarz, Frank; Sager, Martin; Herten, Monika; Sculean, Anton; Becker, Jürgen

    2005-06-01

    The aim of the present study was to compare the biodegradation of differently cross-linked collagen membranes in rats. Five commercially available and three experimental membranes (VN) were included: (1) BioGide (BG) (non-cross-linked porcine type I and III collagens), (2) BioMend (BM), (3) BioMendExtend (BME) (glutaraldehyde cross-linked bovine type I collagen), (4) Ossix (OS) (enzymatic-cross-linked bovine type I collagen), (5) TutoDent (TD) (non-cross-linked bovine type I collagen, and (6-8) VN(1-3) (chemical cross-linked porcine type I and III collagens). Specimens were randomly allocated in unconnected subcutaneous pouches separated surgically on the back of 40 wistar rats, which were divided into five groups (2, 4, 8, 16, and 24 weeks), including eight animals each. After 2, 4, 8, 16, and 24 weeks of healing, the rats were sacrificed and explanted specimens were prepared for histologic and histometric analysis. The following parameters were evaluated: biodegradation over time, vascularization, tissue integration, and foreign body reaction. Highest vascularization and tissue integration was noted for BG followed by BM, BME, and VN(1); TD, VN(2), and VN(3) showed prolongated, while OS exhibited no vascularization. Subsequently, biodegradation of BG, BM, BME and VN(1) was faster than TD, VN(2), and VN(3). OS showed only a minute amount of superficial biodegradation 24 weeks following implantation. Biodegradation of TD, BM, BME, VN(2), and VN(3) was associated with the presence of inflammatory cells. Within the limits of the present study, it was concluded that cross-linking of bovine and porcine-derived collagen types I and III was associated with (i) prolonged biodegradation, (ii) decreased tissue integration and vascularization, and (iii) in case of TD, BM, BME, VN(2), and VN(3) foreign body reactions.

  20. Ag K-shell ionization by electron impact: New cross-section measurements between 50 and 100 keV and review of previous experimental data

    Science.gov (United States)

    Vanin, V. R.; Manso Guevara, M. V.; Maidana, N. L.; Martins, M. N.; Fernández-Varea, J. M.

    2016-02-01

    We report the measurement of Ag K-shell ionization cross-section by electron impact in the range 50-100 keV and review the experimental data found in the literature. The sample consisted in a thin film of Ag evaporated on a thin C backing. The x-ray spectra generated by electron bombardment in the São Paulo Microtron were observed with a planar HPGe detector. The ratios between characteristic and bremsstrahlung x-ray yields were transformed to ionization cross sections with the help of theoretical atomic-field bremsstrahlung cross sections. The measured cross sections are compared with existing experimental values and calculations based on the semi-relativistic distorted-wave Born approximation. According to our experiment, the ratio of Ag Kβ to Kα x-ray intensities is 0.2018(24).

  1. AeroValve Experimental Test Data Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Noakes, Mark W. [Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

    2014-09-01

    This report documents the collection of experimental test data and presents performance characteristics for the AeroValve brand prototype pneumatic bidirectional solenoid valves tested at the Oak Ridge National Laboratory (ORNL) in July/August 2014 as part of a validation of AeroValve energy efficiency claims. The test stand and control programs were provided by AeroValve. All raw data and processing are included in the report attachments.

  2. Experimental study on the pathogenesis of epithelial tumors (VI report)

    OpenAIRE

    Fujiki, Hirota; Ichikawa, Koichi; Yamagiwa, Katsusaburo; Maruyama, Koshichiro; Lee, Kunsei; Fukuda,Tamotsu; Kinoshita, Riojun; Kashiwagi, Masatoshi; Ogawa, Juntaro

    2014-01-01

    The concept of cancer and inflammation has a long history. Virchow's irritation theory based on human cancer engendered the essential role of inflammation in carcinogenesis. Drs. Yamagiwa and Ichikawa first published a comprehensive paper entitled “Experimental study on the pathogenesis of epithelial tumors” (I report) in 1915 in German, and went on to publish five more reports (1915–1924) under the same title. They succeeded in demonstrating that inflammation is an important carcinogenic fac...

  3. Improving plant bioaccumulation science through consistent reporting of experimental data.

    Science.gov (United States)

    Fantke, Peter; Arnot, Jon A; Doucette, William J

    2016-10-01

    Experimental data and models for plant bioaccumulation of organic contaminants play a crucial role for assessing the potential human and ecological risks associated with chemical use. Plants are receptor organisms and direct or indirect vectors for chemical exposures to all other organisms. As new experimental data are generated they are used to improve our understanding of plant-chemical interactions that in turn allows for the development of better scientific knowledge and conceptual and predictive models. The interrelationship between experimental data and model development is an ongoing, never-ending process needed to advance our ability to provide reliable quality information that can be used in various contexts including regulatory risk assessment. However, relatively few standard experimental protocols for generating plant bioaccumulation data are currently available and because of inconsistent data collection and reporting requirements, the information generated is often less useful than it could be for direct applications in chemical assessments and for model development and refinement. We review existing testing guidelines, common data reporting practices, and provide recommendations for revising testing guidelines and reporting requirements to improve bioaccumulation knowledge and models. This analysis provides a list of experimental parameters that will help to develop high quality datasets and support modeling tools for assessing bioaccumulation of organic chemicals in plants and ultimately addressing uncertainty in ecological and human health risk assessments.

  4. Extension of the energy range of experimental activation cross-sections data of deuteron induced nuclear reactions on indium up to 50 MeV

    CERN Document Server

    Tárkányi, F; Takács, S; Hermanne, A; Ignatyuk, A V

    2016-01-01

    The energy range of our earlier measured activation cross-sections data of longer-lived products of deuteron induced nuclear reactions on indium were extended from 40 MeV up to 50 MeV. The traditional stacked foil irradiation technique and non-destructive gamma spectrometry were used. No experimental data were found in literature for this higher energy range. Experimental cross-sections for the formation of the radionuclides $^{113,110}$Sn, $^{116m,115m,114m,113m,111,110g,109}$In and $^{115}$Cd are reported in the 37-50 MeV energy range, for production of $^{110}$Sn and $^{110g,109}$In these are the first measurements ever. The experimental data were compared with the results of cross section calculations of the ALICE and EMPIRE nuclear model codes and of the TALYS1.6 nuclear model code as listed in the on-line library TENDL-2014.

  5. Neutron cross section standards and instrumentation. Annual report

    Energy Technology Data Exchange (ETDEWEB)

    Wasson, O.A.

    1993-07-01

    The objective of this interagency program is to provide accurate neutron interaction measurements for the US Department of Energy nuclear programs which include waste disposal, fusion, safeguards, defense, fission, and personnel protection. These measurements are also useful to other energy programs which indirectly use the unique properties of the neutron for diagnostic and analytical purposes. The work includes the measurement of reference cross sections and related neutron data employing unique facilities and capabilities at NIST and other laboratories as required; leadership and participation in international intercomparisons and collaborations; the preservation of standard reference deposits and the development of improved neutron detectors and measurement methods. A related and essential element of the program is critical evaluation of neutron interaction data including international coordinations. Data testing of critical data for important applications is included. The program is jointly supported by the Department of Energy and the National Institute of Standards and Technology. This report from the National Institute of Standards and Technology contains a summary of the accomplishments of the Neutron Cross Section Standards and Instrumentation Project during the third year of this three-year interagency agreement. The proposed program and required budget for the following three years are also presented. The program continues the shifts in priority instituted in order to broaden the program base.

  6. Using Experimental Methods to Investigate Discriminatory Tendencies: A Lesson Report

    Science.gov (United States)

    Chen, Yu-Wen; Masch, Lena; Finze, Kristin

    2014-01-01

    Using dictator games in experimental analysis, this lesson report demonstrates the process and results of a postgraduate class project in which university students were instructed to scientifically investigate and explore one of German society's most hotly-contested issues: the level of discriminatory tendencies of non-Muslims towards Muslims. The…

  7. Experimental Photoionization Cross-Section Measurements in the Ground and Metastable State Threshold Region of Se+

    CERN Document Server

    Sterling, N C; Bilodeau, R C; Kilcoyne, A L D; Red, E C; Phaneuf, R A; Aguilar, A

    2010-01-01

    Absolute photoionization cross-section measurements are reported for Se+ in the photon energy range 18.0-31.0 eV, which spans the ionization thresholds of the 4S_{3/2} ground state and the low-lying 2P_{3/2,1/2} and 2D_{5/2,3/2} metastable states. The measurements were performed using the Advanced Light Source synchrotron radiation facility. Strong photoexcitation-autoionization resonances due to 4p-->nd transitions are seen in the cross-section spectrum and identified with a quantum-defect analysis.

  8. Experimental SF6/-//SF6 and Cl/-//CFC13 electron-attachment cross sections in the energy range 0-200 meV

    Science.gov (United States)

    Chutjian, A.

    1981-01-01

    Experimental cross sections for the electron-attachment processes for SF6(-)/SF6 and Cl(-)/CFl3 are reported in the energy range 0-200 meV by normalizing each attachment line shape to measurement of a thermal rate coefficient. When the same ion states are detected, good agreement is found between present values, for which a monoenergetic electron source is used, and swarm-unfolded results. The present data constitute a new limit for cross sections reported at high resolution at the lowest electron energy.

  9. THEORETICAL AND EXPERIMENTAL ANALYSIS OF A CROSS-FLOW HEAT EXCHANGER

    Directory of Open Access Journals (Sweden)

    R. Tuğrul OĞULATA

    1996-03-01

    Full Text Available In this study, cross-flow plate type heat exchanger has been investigated because of its effective use in waste heat recovery systems. For this purpose, a heat regain system has been investigated and manufactured in laboratory conditions. Manufactured heat exchanger has been tested with an applicable experimental set up and temperatures, velocity of the air and the pressure losses occuring in the system have been measured and the efficiency of the system has been determined. The irreversibility of heat exchanger has been taken into consideration while the design of heat exchanger is being performed. So minimum entropy generation number has been analysied with respect to second law of thermodynamics in cross-flow heat exchanger. The minimum entropy generation number depends on parameters called optimum flow path length, dimensionless mass velocity and dimensionless heat transfer area. Variations of entropy generation number with these parameters have been analysied and introduced their graphics with their comments.

  10. Experimental and statistical approaches in method cross-validation to support pharmacokinetic decisions.

    Science.gov (United States)

    Thway, Theingi M; Ma, Mark; Lee, Jean; Sloey, Bethlyn; Yu, Steven; Wang, Yow-Ming C; Desilva, Binodh; Graves, Tom

    2009-04-05

    A case study of experimental and statistical approaches for cross-validating and examining the equivalence of two ligand binding assay (LBA) methods that were employed in pharmacokinetic (PK) studies is presented. The impact of changes in methodology based on the intended use of the methods was assessed. The cross-validation processes included an experimental plan, sample size selection, and statistical analysis with a predefined criterion of method equivalence. The two methods were deemed equivalent if the ratio of mean concentration fell within the 90% confidence interval (0.80-1.25). Statistical consideration of method imprecision was used to choose the number of incurred samples (collected from study animals) and conformance samples (spiked controls) for equivalence tests. The difference of log-transformed mean concentration and the 90% confidence interval for two methods were computed using analysis of variance. The mean concentration ratios of the two methods for the incurred and spiked conformance samples were 1.63 and 1.57, respectively. The 90% confidence limit was 1.55-1.72 for the incurred samples and 1.54-1.60 for the spiked conformance samples; therefore, the 90% confidence interval was not contained within the (0.80-1.25) equivalence interval. When the PK parameters of two studies using each of these two methods were compared, we determined that the therapeutic exposure, AUC((0-168)) and C(max), from Study A/Method 1 was approximately twice that of Study B/Method 2. We concluded that the two methods were not statistically equivalent and that the magnitude of the difference was reflected in the PK parameters in the studies using each method. This paper demonstrates the need for method cross-validation whenever there is a switch in bioanalytical methods, statistical approaches in designing the cross-validation experiments and assessing results, or interpretation of the impact of PK data.

  11. Experimental test of the non-reproducibility of cross sections in dissipative reactions

    CERN Document Server

    Dong Yu Chuan; Tian Wen Dong; Li Song Lin; Li Zhi Chang; Lu Xiu Qin; Zhao Kui; Fu Chang Bo; Liu Jian Cheng; Jiang Hua; Hu Gui Qing

    2002-01-01

    Two independent measurements of cross sections for the sup 1 sup 9 F + sup 9 sup 3 Nb dissipative heavy ion collisions have been performed at incident energies from 100 to 108 MeV in steps of 250 keV. In the two measurements, two independently prepared targets were used. All other experimental conditions were identical in both experiments. The data indicate that non-reproducibility of the non-self-averaging oscillation is yielded in the two measurements. This supports the recent theoretical predictions of spontaneous coherence, slow phase randomization and extreme sensitivity in highly excited complex quantum systems

  12. Geothermal Loop Experimental Facility. Quarterly report, January-March, 1979

    Energy Technology Data Exchange (ETDEWEB)

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

    1979-04-01

    The general operations and accomplishments of the Geothermal Loop Experimental Facility during the period from January 1, 1979 through March 31, 1979 are summarized. The construction and installation of a reactor clarifier/media filter system to treat the effluent brine continued. Startup is expected during the next reporting period. Operations of the facility evaluated the two stage flash cycle characteristics of brines from the second production well (Woolsey No. 1). The results were similar to the characteristics of the first production well (Magmamax No. 1) that were reported previously. The 1979 test program has been initiated and preliminary results documented.

  13. CANFLEX fuel bundle cross-flow endurance test (test report)

    Energy Technology Data Exchange (ETDEWEB)

    Hong, Sung Deok; Chung, C. H.; Chang, S. K.; Kim, B. D.

    1997-04-01

    As part of the normal refuelling sequence of CANDU nuclear reactor, both new and irradiated bundles can be parked in the cross-flow region of the liner tubes. This situation occurs normally for a few minutes. The fuel bundle which is subjected to the cross-flow should be capable of withstanding the consequences of cross flow for normal periods, and maintain its mechanical integrity. The cross-flow endurance test was conducted for CANFLEX bundle, latest developed nuclear fuel, at CANDU-Hot Test Loop. The test was carried out during 4 hours at the inlet cross-flow region. After the test, the bundle successfully met all acceptance criteria after the 4 hours cross-flow test. (author). 2 refs., 3 tabs.

  14. Power-Stepped HF Cross-Modulation Experiments: Simulations and Experimental Observations

    Science.gov (United States)

    Greene, S.; Moore, R. C.

    2014-12-01

    High frequency (HF) cross modulation experiments are a well established means for probing the HF-modified characteristics of the D-region ionosphere. The interaction between the heating wave and the probing pulse depends on the ambient and modified conditions of the D-region ionosphere. Cross-modulation observations are employed as a measure of the HF-modified refractive index. We employ an optimized version of Fejer's method that we developed during previous experiments. Experiments were performed in March 2013 at the High Frequency Active Auroral Research Program (HAARP) observatory in Gakona, Alaska. During these experiments, the power of the HF heating signal incrementally increased in order to determine the dependence of cross-modulation on HF power. We found that a simple power law relationship does not hold at high power levels, similar to previous ELF/VLF wave generation experiments. In this paper, we critically compare these experimental observations with the predictions of a numerical ionospheric HF heating model and demonstrate close agreement.

  15. Experimental cross-species infection of common marmosets by titi monkey adenovirus.

    Directory of Open Access Journals (Sweden)

    Guixia Yu

    Full Text Available Adenoviruses are DNA viruses that infect a number of vertebrate hosts and are associated with both sporadic and epidemic disease in humans. We previously identified a novel adenovirus, titi monkey adenovirus (TMAdV, as the cause of a fulminant pneumonia outbreak in a colony of titi monkeys (Callicebus cupreus at a national primate center in 2009. Serological evidence of infection by TMAdV was also found in a human researcher at the facility and household family member, raising concerns for potential cross-species transmission of the virus. Here we present experimental evidence of cross-species TMAdV infection in common marmosets (Callithrix jacchus. Nasal inoculation of a cell cultured-adapted TMAdV strain into three marmosets produced an acute, mild respiratory illness characterized by low-grade fever, reduced activity, anorexia, and sneezing. An increase in virus-specific neutralization antibody titers accompanied the development of clinical signs. Although serially collected nasal swabs were positive for TMAdV for at least 8 days, all 3 infected marmosets spontaneously recovered by day 12 post-inoculation, and persistence of the virus in tissues could not be established. Thus, the pathogenesis of experimental inoculation of TMAdV in common marmosets resembled the mild, self-limiting respiratory infection typically seen in immunocompetent human hosts rather than the rapidly progressive, fatal pneumonia observed in 19 of 23 titi monkeys during the prior 2009 outbreak. These findings further establish the potential for adenovirus cross-species transmission and provide the basis for development of a monkey model useful for assessing the zoonotic potential of adenoviruses.

  16. Experimental investigation of dynamic contact angle and capillary rise in tubes with circular and noncircular cross sections.

    Science.gov (United States)

    Heshmati, Mohammad; Piri, Mohammad

    2014-12-02

    An extensive experimental study of the kinetics of capillary rise in borosilicate glass tubes of different sizes and cross-sectional shapes using various fluid systems and tube tilt angles is presented. The investigation is focused on the direct measurement of dynamic contact angle and its variation with the velocity of the moving meniscus (or capillary number) in capillary rise experiments. We investigated this relationship for different invading fluid densities, viscosities, and surface tensions. For circular tubes, the measured dynamic contact angles were used to obtain rise-versus-time values that agree more closely with their experimental counterparts (also reported in this study) than those predicted by Washburn equation using a fixed value of contact angle. We study the predictive capabilities of four empirical correlations available in the literature for velocity-dependence of dynamic contact angle by comparing their predicted trends against our measured values. We also present measurements of rise in noncircular capillary tubes where rapid advancement of arc menisci in the corners ahead of main terminal meniscus impacts the dynamics of rise. Using the extensive set of experimental data generated in this study, a new general empirical trend is presented for variation of normalized rise with dynamic contact angle that can be used in, for instance, dynamic pore-scale models of flow in porous media to predict multiphase flow behavior.

  17. 77 FR 64077 - National Highway-Rail Crossing Inventory Reporting Requirements

    Science.gov (United States)

    2012-10-18

    ... Inventory Reporting Section 234.401 Definitions This section contains proposed definitions of terms used in... use this definition for Crossing Inventory reporting purposes as well. With respect to crossings in...)(3) of this section would require that the reporting entity and the primary operating...

  18. Comparison of Performances of Scramjet-Driven Experimental DCW-MHD Generators with Different Cross-Section

    Science.gov (United States)

    Niwa, Naoyuki; Takahashi, Toru; Fujino, Takayasu; Ishikawa, Motoo

    The purpose of this study is to examine the influence of shape of cross-section of scramjet engine driven experimental DCW-MHD generator on generator performance by three-dimensional numerical analyses. We have designed the MHD generators with symmetric square and circular cross-section, based on the experimental MHD generator with asymmetric square cross-section. Under the optimum load condition, the electric power output becomes 26.6kW for the asymmetric square cross-section, 24.6kW for the symmetric square cross-section, and 22.4kW for the circular cross-section. The highest output is obtained for the experimental generator with asymmetric square cross-section. The difference of electric power output is induced by the difference of flow velocity and boundary layer thickness. For the generator with asymmetric square cross-section, the average flow velocity becomes the highest and the boundary layer becomes the thinnest. The compression wave is generated depending on the channel shape. The difference of flow velocity and boundary layer thickness is induced by the superposition of compression wave.

  19. The Experimental Analysis of Cross-talk Effect for Mixed-mode IC's Based on SOI Structure

    Institute of Scientific and Technical Information of China (English)

    ZHANGGuoyan; HUANGRu; ZHANGXing; WANGYangyuan

    2004-01-01

    The experimental study of cross-talk behavior is presented for mixed-mode integrated circuits based on SOI (Silicon-on-insulator) structure. Different strategies to reduce cross-talk are investigated. The influence of bulk contact, separation distance, the guard ring isolation and mesa isolation on the cross-talk has been compared. At the same time, the effect of load impedance on the cross-talk is also included. The results can serve as a guideline for designing low-noise coupling SOI mixed-mode IC's.

  20. Experimental Study of Single and Double Electron Detachment Cross Sections for Cl- in Collision with He

    Institute of Scientific and Technical Information of China (English)

    YANG En-Bo; GAO Mei; HUANG Yong-Yi; WU Shi-Min; LI Guang-Wu; ZHANG Xue-Mei; LU Fu-Quan

    2006-01-01

    @@ Single-electron detachment (SED) and double-electron detachment (DED) for chlorine negative ions in collision with helium are investigated in the energy region of 5-30 keV (SED) and 5-19keV (DED) by growth rate method,respectively. Experimental data from this work are compared with the previous reported data, and a general discussion is given.

  1. Research Report: A Cross-Cultural Perspective on Practical Intelligence.

    Science.gov (United States)

    Mercer, Jane R.

    1987-01-01

    Questions the extent to which practical intelligence can be measured in a reliable and valid fashion cross-culturally. Differentiates between the internal validity of our measure of practical intelligence and its external validity. (LHW)

  2. Why has reversal of the actin-myosin cross-bridge cycle not been observed experimentally?

    KAUST Repository

    Loiselle, D. S.

    2010-02-04

    We trace the history of attempts to determine whether the experimentally observed diminution of metabolic energy expenditure when muscles lengthen during active contraction is consistent with reversibility of biochemical reactions and, in particular, with the regeneration of ATP. We note that this scientific endeavor has something of a parallel flavor to it, with both early and more recent experiments exploiting both isolated muscle preparations and exercising human subjects. In tracing this history from the late 19th century to the present, it becomes clear that energy can be (at least transiently) stored in a muscle undergoing an eccentric contraction but that this is unlikely to be due to the regeneration of ATP. A recently developed, thermodynamically constrained model of the cross-bridge cycle provides additional insight into this conclusion. Copyright © 2010 the American Physiological Society.

  3. An Experimental Study on the Adsorption Behavior of Gases Crossing the Critical Temperature

    Institute of Scientific and Technical Information of China (English)

    ZHOULi; ZHOUYaping; 等

    2002-01-01

    Adsorption equilibria of CH4 and N2 on activated carbon and silica gel were measured for a wide temperature rang covering the critical point:158-298K for CH4,and 103-298K for N2.The determination of the compressibility factor is shown to have considerable effect on isotherm behavior at conditions after the isotherm maximum.A change in adsorption mechanisms on crossing the critical temperature was observed in all cases. The kind of adsorbents and how far the equilibrium temperature to the critical one are major factors affecting the transition of isotherms from sub-to supercritical.All continuous isotherms can be modeled by a unique model for the supercritical region.The satisfactory fitting of the model to the experimental isotherms proved the reliability of the absolute adsorption determined by the proposed method.

  4. Experimental researches on mass and heat transfer in new typical cross-flow rotating packed bed

    Institute of Scientific and Technical Information of China (English)

    CHEN Haihui; ZENG Yingying; GAO Wenshuai

    2006-01-01

    New typical cross-flow Rotating Packed Bed(RPB)called multi-pulverizing RPB was manufactured.There is enough void in multi-pulverizing RPB,where liquid easily flows and is repeatedly pulverized by light packing,which decreases the material consumed,lightens the weight,and compacts the structure.Mass and heat transfer property in the new type PRB were studied by two experimental models.In the mass transfer model,the axial fan pumping gas press is only 100 Pa,mass transfer coefficient and volumetric mass transfer coefficient are similar to countercurrent RPB,which are an order quantity lager than that in the conventional packed tower.In the heat transfer experiment,the axial fan pumping gas press is only 120 Pa;volumetric heatwhich especially suits the treatment of large gas flow and lower gas pressure drop.

  5. Experimental Facilities Division progress report 1996--97

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-04-01

    This progress report summarizes the activities of the Experimental Facilities Division (XFD) in support of the users of the Advanced Photon Source (APS), primarily focusing on the past year of operations. In September 1996, the APS began operations as a national user facility serving the US community of x-ray researchers from private industry, academic institutions, and other research organizations. The start of operations was about three months ahead of the baseline date established in 1988. This report is divided into the following sections: (1) overview; (2) user operations; (3) user administration and technical support; (4) R and D in support of view operations; (5) collaborative research; and (6) long-term strategic plans for XFD.

  6. Reported analgesic administration to rabbits undergoing experimental surgical procedures.

    Science.gov (United States)

    Coulter, Claire A; Flecknell, Paul A; Leach, Matthew C; Richardson, Claire A

    2011-02-21

    It has become widely accepted that whenever animals are used in scientific procedures, the 3Rs principle of replacement, reduction and refinement described by William Russell and Rex Burch should be adhered to. Animals should be replaced with non-sentient alternatives if possible, the number of animals used should be reduced and experimental procedures should be refined to minimise pain, suffering and distress. Administration of analgesic agents to animals undergoing surgical procedures is a refinement used to alleviate pain. In this study, a structured literature review was carried out to examine current trends in analgesic administration to rabbits undergoing experimental surgical procedures. 128 papers from 51 peer-reviewed journals were selected for inclusion in this review. Reporting administration of systemic analgesia to rabbits in peer-reviewed scientific papers increased significantly from 16% to 50% between 1995-1997 and 2005-2007 (P rabbits undergoing surgical procedures is increasing, rabbits do not always receive analgesia when they undergo experimental surgery. Other practices in rabbit perioperative care that could be improved, highlighted by this survey include: 1) changing the timing of analgesic administration by giving systemic analgesics pre- or perioperatively rather than only postoperatively, 2) using multimodal analgesia when pain is likely to be moderate to severe and 3) increasing the use of non-steroidal anti-inflammatory drugs and use of other techniques such as epidural analgesia particularly for orthopaedic procedures.

  7. Reported analgesic administration to rabbits undergoing experimental surgical procedures

    Directory of Open Access Journals (Sweden)

    Leach Matthew C

    2011-02-01

    Full Text Available Abstract Background It has become widely accepted that whenever animals are used in scientific procedures, the 3Rs principle of replacement, reduction and refinement described by William Russell and Rex Burch should be adhered to. Animals should be replaced with non-sentient alternatives if possible, the number of animals used should be reduced and experimental procedures should be refined to minimise pain, suffering and distress. Administration of analgesic agents to animals undergoing surgical procedures is a refinement used to alleviate pain. In this study, a structured literature review was carried out to examine current trends in analgesic administration to rabbits undergoing experimental surgical procedures. Results 128 papers from 51 peer-reviewed journals were selected for inclusion in this review. Reporting administration of systemic analgesia to rabbits in peer-reviewed scientific papers increased significantly from 16% to 50% between 1995-1997 and 2005-2007 (P P Conclusions Although this review provides evidence that systemic analgesic administration to rabbits undergoing surgical procedures is increasing, rabbits do not always receive analgesia when they undergo experimental surgery. Other practices in rabbit perioperative care that could be improved, highlighted by this survey include: 1 changing the timing of analgesic administration by giving systemic analgesics pre- or perioperatively rather than only postoperatively, 2 using multimodal analgesia when pain is likely to be moderate to severe and 3 increasing the use of non-steroidal anti-inflammatory drugs and use of other techniques such as epidural analgesia particularly for orthopaedic procedures.

  8. Comparison of GEANT4 very low energy cross section models with experimental data in water

    Energy Technology Data Exchange (ETDEWEB)

    Incerti, S.; Ivanchenko, A.; Karamitros, M.; Mantero, A.; Moretto, P.; Tran, H. N.; Mascialino, B.; Champion, C.; Ivanchenko, V. N.; Bernal, M. A.; Francis, Z.; Villagrasa, C.; Baldacchino, G.; Gueye, P.; Capra, R.; Nieminen, P.; Zacharatou, C. [Universite Bordeaux 1, CNRS/IN2P3, Centre d' Etudes Nucleaires de Bordeaux-Gradignan, CENBG, Chemin du Solarium, BP 120, 33175 Gradignan (France); Karolinska Institutet, P.O. Box 260, S-171-76 Stockholm (Sweden); Laboratoire de Physique Moleculaire et des Collisions, Universite Paul Verlaine-Metz, 1 Boulevard Arago, Technopo circumflex le 2000, 57078 Metz (France); Departamento de Fisica, Universidad Simon Bolivar, P.O. Box 89000, Caracas 1080-A (Venezuela, Bolivarian Republic of); IRSN, Institut de Radioprotection et de Surete Nucleaire, BP17, 92262 Fontenay-aux-Roses (France); CEA Saclay, IRAMIS, UMR 3299 CEA-CNRS SIS2M, Laboratoire de Radiolyse, F-91191 Gif-sur-Yvette Cedex (France); Department of Physics, Hampton University, Hampton, Virginia 23668 (United States); Via Niella 12, 17100 Savona (Italy); ESA-ESTEC, 2200 AG Noordwijk (Netherlands); Niels Bohr Institute, Blegdamsvej 17, 2100 Copenhagen (Denmark)

    2010-09-15

    Purpose: The GEANT4 general-purpose Monte Carlo simulation toolkit is able to simulate physical interaction processes of electrons, hydrogen and helium atoms with charge states (H{sup 0}, H{sup +}) and (He{sup 0}, He{sup +}, He{sup 2+}), respectively, in liquid water, the main component of biological systems, down to the electron volt regime and the submicrometer scale, providing GEANT4 users with the so-called ''GEANT4-DNA'' physics models suitable for microdosimetry simulation applications. The corresponding software has been recently re-engineered in order to provide GEANT4 users with a coherent and unique approach to the simulation of electromagnetic interactions within the GEANT4 toolkit framework (since GEANT4 version 9.3 beta). This work presents a quantitative comparison of these physics models with a collection of experimental data in water collected from the literature. Methods: An evaluation of the closeness between the total and differential cross section models available in the GEANT4 toolkit for microdosimetry and experimental reference data is performed using a dedicated statistical toolkit that includes the Kolmogorov-Smirnov statistical test. The authors used experimental data acquired in water vapor as direct measurements in the liquid phase are not yet available in the literature. Comparisons with several recommendations are also presented. Results: The authors have assessed the compatibility of experimental data with GEANT4 microdosimetry models by means of quantitative methods. The results show that microdosimetric measurements in liquid water are necessary to assess quantitatively the validity of the software implementation for the liquid water phase. Nevertheless, a comparison with existing experimental data in water vapor provides a qualitative appreciation of the plausibility of the simulation models. The existing reference data themselves should undergo a critical interpretation and selection, as some of the series

  9. Experimental study of the aerodynamic noise radiated by cylinders with different cross-sections and yaw angles

    Science.gov (United States)

    Latorre Iglesias, E.; Thompson, D. J.; Smith, M. G.

    2016-01-01

    Vortex shedding from cylinders has been extensively studied due to its occurrence in many engineering fields. Many experimental studies reported in the literature focus on the aerodynamics of the vortex shedding process but the literature about the radiated noise is more scarce. The aim of the work presented here is to extend the available noise data. Aero-acoustic wind tunnel tests were carried out using cylinders with different cross-sections: circular, square, rectangular and elliptical. Flow speeds between 20 and 50 m/s were used, corresponding to Reynolds numbers in the range from 1.6×104 to 1.2×105. The dependence of the noise on the yaw angle, flow speed, cross-sectional shape, angle of attack and radiation angle (directivity) is assessed. The results obtained are compared, where possible, with those found in the literature for similar cases. It is intended that the results can be used for the validation and calibration of numerical and empirical aerodynamic noise prediction models.

  10. Texas Experimental Tokamak, a plasma research facility: Technical progress report

    Energy Technology Data Exchange (ETDEWEB)

    Wootton, A.J.

    1995-08-01

    In the year just past, the authors made major progress in understanding turbulence and transport in both core and edge. Development of the capability for turbulence measurements throughout the poloidal cross section and intelligent consideration of the observed asymmetries, played a critical role in this work. In their confinement studies, a limited plasma with strong, H-mode-like characteristics serendipitously appeared and received extensive study though a diverted H-mode remains elusive. In the plasma edge, they appear to be close to isolating a turbulence drive mechanism. These are major advances of benefit to the community at large, and they followed from incremental improvements in diagnostics, in the interpretation of the diagnostics, and in TEXT itself. Their general philosophy is that the understanding of plasma physics must be part of any intelligent fusion program, and that basic experimental research is the most important part of any such program. The work here demonstrates a continuing dedication to the problems of plasma transport which continue to plague the community and are an impediment to the design of future devices. They expect to show here that they approach this problem consistently, systematically, and effectively.

  11. 77 FR 58131 - Cross-Media Electronic Reporting: Authorized Program Revision Approval, State of Mississippi

    Science.gov (United States)

    2012-09-19

    ... From the Federal Register Online via the Government Publishing Office ENVIRONMENTAL PROTECTION AGENCY Cross-Media Electronic Reporting: Authorized Program Revision Approval, State of Mississippi... allow electronic reporting. DATES: EPA's approval is effective on September 19, 2012. FOR FURTHER...

  12. 76 FR 46798 - Cross-Media Electronic Reporting: Authorized Program Revision Approvals, Commonwealth of Kentucky

    Science.gov (United States)

    2011-08-03

    ... From the Federal Register Online via the Government Publishing Office ENVIRONMENTAL PROTECTION AGENCY Cross-Media Electronic Reporting: Authorized Program Revision Approvals, Commonwealth of Kentucky... allow electronic reporting. DATES: EPA's approval is effective August 3, 2011. FOR FURTHER INFORMATION...

  13. Site-city interaction: theoretical, numerical and experimental crossed-analysis

    Science.gov (United States)

    Schwan, L.; Boutin, C.; Padrón, L. A.; Dietz, M. S.; Bard, P.-Y.; Taylor, C.

    2016-05-01

    The collective excitation of city structures by a seismic wavefield and the subsequent multiple Structure-Soil-Structure Interactions (SSSIs) between the buildings are usually disregarded in conventional seismology and earthquake engineering practice. The objective here is to qualify and quantify these complex multiple SSSIs through the design of an elementary study case, which serves as a benchmark for theoretical, numerical and experimental crossed-analysis. The experimental specimen consists of an idealized site-city setup with up to 37 anisotropic resonant structures arranged at the top surface of an elastic layer and in co-resonance with it. The experimental data from shaking table measurements is compared with the theoretical and numerical results provided respectively by an equivalent city-impedance model derived analytically from homogenization in the long-wavelength approximation and a model based on boundary elements. The signatures of the site-city interactions are identified in the frequency, time and space domain, and in particular consist of a frequency-dependent free/rigid switch in the surface condition at the city resonance, beatings in the records and the depolarization of the wavefield. A parametric study on the city density shows that multiple SSSIs among the city structures (five are sufficient) can have significant effects on both the seismic response of its implantation site and that of the buildings. Key parameters are provided to assess site-city interactions in the low seismic frequency range: They involve the mass and rigidity of the city compared to those of the soil and the damping of the building.

  14. 2015 Cross-Domain Deterrence Seminar Summary Report

    Energy Technology Data Exchange (ETDEWEB)

    Juarez, A. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-01-11

    Lawrence Livermore National Laboratory (LLNL) hosted the 2nd Annual Cross-Domain Deterrence Seminar on November 17th, 2015 in Livermore, CA. The seminar was sponsored by LLNL’s Center for Global Security Research (CGSR), National Security Office (NSO), and Global Security program. This summary covers the seminar’s panels and subsequent discussions.

  15. Fashion reporting in cross-national perspective 1955-2005

    NARCIS (Netherlands)

    M.S.S.E. Janssen (Susanne)

    2006-01-01

    textabstractThis article aims to portray long-term developments and cross-national differences in the editorial prominence, artistic focus and international orientation of the coverage given to designer fashion by a central, intermediary agency within national, cultural fields: the journalism of art

  16. Learning from Cross-Functional Teamwork. IES Report 356.

    Science.gov (United States)

    Kettley, P.; Hirsh, W.

    A study was conducted to determine what knowledge and learning is developed through teamwork in business. Ten cross-functional teams selected from six major United Kingdom employers were surveyed, with structured interviews completed with 72 team members and team leaders and a short questionnaire completed by 50 of the interviewees. The study…

  17. Fashion reporting in cross-national perspective 1955-2005

    NARCIS (Netherlands)

    M.S.S.E. Janssen (Susanne)

    2006-01-01

    textabstractThis article aims to portray long-term developments and cross-national differences in the editorial prominence, artistic focus and international orientation of the coverage given to designer fashion by a central, intermediary agency within national, cultural fields: the journalism of art

  18. Experimental and numerical investigation of the tracer gas methodology in the case of a naturally cross-ventilated building

    DEFF Research Database (Denmark)

    Larsen, Tine Steen; Νikolopoulos, Nikos; Nikolopoulos, Aristeidis;

    2012-01-01

    This paper presents the investigation of a naturally cross-ventilated building using both experimental and numerical methods with parameter being the incidence angle of the wind to the openings of the building. The experimental methodology calculates the air change rate based either on measurements...... on the time dependent character of the induced flow field. The numerical results are compared with corresponding experimental data for the three aforementioned experimental methodologies in the case of a full-scale building inside a wind tunnel. The numerical investigation reveals that for large incidence...

  19. Kinematics of experimental forced folds and their relevance to cross-section balancing

    Science.gov (United States)

    Couples, Gary D.; Stearns, David W.; Handin, John W.

    1994-05-01

    We report the results of a series of laboratory experiments in which packages of layers (consisting of rock and lead) are deformed under 50 MPa confining pressure into forced folds by the uplift and rotation of pre-machined steel forcing blocks. The models are not fully scaled, but the geometries resulting form the deformation are remarkably similar to many natural forced folds observed in the U.S. Rocky Mountains foreland. During the folding, detachment and quantifiable layer-parallel translation occur between the layered sequence and the forcing assembly, confirming limited observations from earlier model studies. Away from the fold, there is a pattern of movement in which the layered sequence first moves away from the uplift, but, with greater structural relief, those motions reverse their sense to become layer-parallel translations towards the uplift. The very ductile lead unit at the base of the layered sequence flows laterally, especially across the crest of the uplift to the downthrown block, in response to pressure gradients which are inherent to asymmetric uplifts. The flow of this ductile unit causes layer-parallel translation of the rock layers, thereby transporting material into the fold. If the models were to be treated as proposed cross sections, and if they were subjected to the usual techniques of cross-section balancing, incorrect interpretations would result; this is because there are no suitable sites for either pin lines or no-flow boundaries.

  20. UVA experimental and high energy physics. Final grant report

    Energy Technology Data Exchange (ETDEWEB)

    Cox, B.

    1999-10-07

    The period 1992--1997 was a mixture of frustrations and of accomplishments for the UVa HEP group. The experimental HEP group began this period with the completion of a truncated run of Experiment E771 at Fermilab in 1992. This experiment was designed to measure the cross section for beauty production in 800 GeV/c pN interactions. It succeeded in this goal as well as in obtaining one of the best limits on FCNC in charm decays by setting an upper limit on D{sup 0} {r_arrow} {mu}{sup +}{mu}{sup {minus}}. In addition, they were able to measure {Psi}, {Psi}, {chi}{sub 1},{chi}{sub 2} and upsilon production. Three UVa PhD theses have resulted from this experiment (as well as 12 other PhD's at other institutions). At the same time, the UVa experimental group was vigorously pursuing the goal of studying CP violation in B production. This took the form of a proposal to the SSC for a super fixed target facility, the SFT, which would focus on studies of B mesons. B. Cox was the spokesman of this experiment that had over thirty institutions. This proposal EOI-14 had a good reception by the SSC PAC. A R and D activity to prove the technique of crystal channeling was undertaken to prove the accelerator aspects of this proposal. This activity, known as E853 or CEX at Fermilab, resulted in proof of the crystal channeling technique as viable for the extraction of 20 TeV beam at the SSC. In addition to this activity, the UVa group investigated many other aspects of B physics at the SSC. They were among the leaders of the 1993 Snowmass meeting on B Physics at Hadronic Accelerators. The UVa HEP group worked vigorously on developing the ideas for B physics at the SSC, as evidenced by the many different studies listed in the publication list given, up to the very day the SSC was terminated by an act of Congress.

  1. Cross-over limb replantation: a case report.

    Science.gov (United States)

    Holmes, W J M; Williams, A; Everitt, K J M; Kay, S P J; Bourke, G

    2013-10-01

    Following traumatic bilateral arm amputation in a 46-year-old woman, orthotopic replantation was not possible. The patient underwent replantation of the left forearm to the right proximal forearm. At two years she has a sensate hand, with good recovery of her long flexors of the hand and wrist extensors. DASH score is 93.9 and Chen's score is III (medium). We demonstrate a high level of function compared to the contralateral prosthetic limb. There have only been four similar cases described. Although a rare circumstance, a cross-limb replant can provide a level of function and independence superior to a simple prosthesis. Cross-limb transfer should be considered in situations where bilateral arm amputation is present and neither can be orthotopically replanted.

  2. Using Experimental Methods to Investigate Discriminatory Tendencies: A Lesson Report

    Directory of Open Access Journals (Sweden)

    Yu-Wen Chen

    2013-08-01

    Full Text Available Using dictator games in experimental analysis, this lesson report demonstrates the process and results of a postgraduate class project in which university students were instructed to scientifically investigate and explore one of German society’s most hotly-contested issues: the level of discriminatory tendencies of non-Muslims towards Muslims. The results of this class project show little or no discriminatory tendencies toward Muslims. Instead, the university students under our investigation tended to act favorably, or at the very least, fairly toward Muslims. We expect that this lesson report can demonstrate how a postgraduate course can be conducted in an innovative way, empowering students to collect primary data and finishing a small scientific project during the span of a semester. Dieser Bericht stellt die Prozesse und Ergebnisse einer experimentellen Studie eines Postgraduierten-Kurses der Universität Greifswald dar. Wir zeigen, wie Studierende das Thema Migration innovativ untersuchen können, indem sie neben theoretischen Lerninhalten an experimentelle Methoden sowie die Primärforschung herangeführt werden. Anhand eines Diktatorspiels wurden die teilnehmenden Studenten angeleitet, ein in der Öffentlichkeit kontrovers debattiertes Thema wissenschaftlich zu untersuchen: Diskriminierende Tendenzen von Nicht-Muslimen gegenüber Muslimen. Die Ergebnisse dieser Studie lassen jedoch nicht auf diskriminierende Tendenzen der Studenten schließen. Stattdessen deuten sie darauf hin, dass sich die Studierenden zumindest fair gegenüber Muslimen verhalten.

  3. The experimental of methane-air flame propagation in the tube with quadrate cross section

    Institute of Scientific and Technical Information of China (English)

    GUO Zi-ru; SHEN Zhao-wu; LU Shou-xiang; ZHOU Ning

    2005-01-01

    The flame propagation of methane-air mixture with various methane concentrations was experimentally investigated at venting flame acceleration tube with quadrate cross section under different obstacles presented. The flame shape and propagation speed was observed by high-speed color video camera. The explosion pressure was determined by piezoelectricity pressure transducers. The results are: The flame propagates in the shape of a hemisphere before the flame reaches the first baffle and flame propagation speed is not more than 15 m/s. When the flame propagates across the baffle, the flame begins to accelerate due to turbulence induced by obstacle.Blockage ratio has relatively greater effect on the flame propagation speed than repeated baffle number does. The flame propagation speed and the pressure at different location along the tube are maximum when methane-air mixture is near the chemical stoichoimetric ratio. The pressure increases with the distance from ignition end at first and the maximum pressure was obtained at the middle of tube, but the pressure decreases and again increases at venting end.

  4. Experimental cross-correlation nitrogen Q-branch CARS thermometry in a spark ignition engine

    Science.gov (United States)

    Lockett, R. D.; Ball, D.; Robertson, G. N.

    2013-07-01

    A purely experimental technique was employed to derive temperatures from nitrogen Q-branch Coherent Anti-Stokes Raman Scattering (CARS) spectra, obtained in a high pressure, high temperature environment (spark ignition Otto engine). This was in order to obviate any errors arising from deficiencies in the spectral scaling laws which are commonly used to represent nitrogen Q-branch CARS spectra at high pressure. The spectra obtained in the engine were compared with spectra obtained in a calibrated high pressure, high temperature cell, using direct cross-correlation in place of the minimisation of sums of squares of residuals. The technique is demonstrated through the measurement of air temperature as a function of crankshaft angle inside the cylinder of a motored single-cylinder Ricardo E6 research engine, followed by the measurement of fuel-air mixture temperatures obtained during the compression stroke in a knocking Ricardo E6 engine. A standard CARS programme (SANDIA's CARSFIT) was employed to calibrate the altered non-resonant background contribution to the CARS spectra that was caused by the alteration to the mole fraction of nitrogen in the unburned fuel-air mixture. The compression temperature profiles were extrapolated in order to predict the auto-ignition temperatures.

  5. Induction of corneal collagen cross-linking in experimental corneal alkali burns in rabbits

    Directory of Open Access Journals (Sweden)

    Marcello Colombo-Barboza

    2014-10-01

    Full Text Available Objective: To evaluate the effect of riboflavin-ultraviolet-A-induced cross-linking (CXL following corneal alkali burns in rabbits. Methods: The right corneas and limbi of ten rabbits were burned using a 1N solution of NaOH and the animals were then divided into two groups: a control group submitted to clinical treatment alone and an experimental group that was treated 1 h after injury with CXL, followed by the same clinical treatment as administered to the controls. Clinical parameters were evaluated post-injury at 1, 7, 15, and 30 days by two independent observers. Following this evaluation, the corneas were excised and examined histologically. Results: There were no statistically significant differences in clinical parameters, such as hyperemia, corneal edema, ciliary injection, limbal ischemia, secretion, corneal neovascularization, symblepharon, or blepharospasm, at any of the time-points evaluated. However, the size of the epithelial defect was significantly smaller in the CXL group (p<0.05 (day 15: p=0.008 and day 30: p=0.008 and the extent of the corneal injury (opacity lesion was also smaller (day 30: p=0.021. Histopathology showed the presence of collagen bridges linking the collagen fibers in only the CXL group. Conclusions: These results suggest that the use of CXL may improve the prognosis of acute corneal alkali burns.

  6. Modeling and experimental analysis of phased array synthetic jet cross-flow interactions

    Science.gov (United States)

    Hasnain, Zohaib

    developed from the full momentum equations. Analytical methods to solve these reduced order models were then implemented in order to cut down on solution time. A wave equation based solution to the stream and vorticity formulation of the momentum equations was implemented to predict SJA behavior. For the experimental component of the project, a finite span high aspect ratio orifice SJA was designed and characterized through Constant Temperature Anemometry (CTA). Two of these SJA were then placed in close proximity to one another. The relative phase of operation between the two jets was altered and the resulting flow field was measured through Particle Image Velocimetry (PIV). This process was repeated for different sets of array spacing, and SJA to cross-flow velocity ratio. For specific choices of these parameters a 40% increase in momentum addition was observed. The experimental results were used to validate the modeling techniques. In general reasonable agreement between the modeling and experiment was observed in specific domains of the flow field.

  7. L X-ray fluorescence cross sections experimentally determined for elements with 45

    Energy Technology Data Exchange (ETDEWEB)

    Bonzi, Edgardo V., E-mail: bonzie@famaf.unc.edu.ar [Facultad de Matematica, Astronomia y Fisica, Universidad Nacional de Cordoba, Ciudad Universitaria-5010, Cordoba (Argentina); Badiger, Nagappa M. [Departments of Physics, Karnatak University, Dharwad 580 003, Karnataka (India); Grad, Gabriela B. [Facultad de Matematica, Astronomia y Fisica, Universidad Nacional de Cordoba, Ciudad Universitaria-5010, Cordoba (Argentina); Barrea, Raul A. [The Biophysics Collaborative Access Team (BioCAT), Dept of Biological Chemical, and Physical Sciences, Illinois Institute of Technology, Chicago, IL 60616 (United States); Figueroa, Rodolo G. [Departamento de Cs. Fisicas, Universidad de La Frontera, Temuco (Chile)

    2012-04-15

    Experimental determination of L fluorescence cross-sections for elements with 45experimental set-up provided a low background by using linearly polarized monoenergetic photon beam, improving the signal-to-noise ratio. The experimental cross sections obtained in this work were compared with data calculated using coefficients from , , and Scofield and Puri et al. (1993, 1995) - Highlights: Black-Right-Pointing-Pointer Experimental data of L fluorescence cross-sections with 45cross sections Ll, L{alpha}, L{beta}{sub I}, L{beta}{sub II}, L{gamma}{sub {Iota}} and L{gamma}{sub {Iota}{Iota}} obtained, were compared with calculated data. Black-Right-Pointing-Pointer The Hypermet function was used to fit the data, because it considers a tail on the left side of the peak. Black-Right-Pointing-Pointer The tail is relevant when a small peak has another one on the right side with a big area.

  8. Final report for CCS cross-layer reliability visioning study

    Energy Technology Data Exchange (ETDEWEB)

    Quinn, Heather M [Los Alamos National Laboratory; Dehon, Andre [U. PENN; Carter, Nicj [INTEL

    2010-12-20

    The geometric rate of improvement of transistor size and integrated circuit performance known as Moore's Law has been an engine of growth for our economy, enabling new products and services, creating new value and wealth, increasing safety, and removing menial tasks from our daily lives. Affordable, highly integrated components have enabled both life-saving technologies and rich entertainment applications. Anti-lock brakes, insulin monitors, and GPS-enabled emergency response systems save lives. Cell phones, internet appliances, virtual worlds, realistic video games, and mp3 players enrich our lives and connect us together. Over the past 40 years of silicon scaling, the increasing capabilities of inexpensive computation have transformed our society through automation and ubiquitous communications. Looking forward, increasing unpredictability threatens our ability to continue scaling integrated circuits at Moore's Law rates. As the transistors and wires that make up integrated circuits become smaller, they display both greater differences in behavior among devices designed to be identical and greater vulnerability to transient and permanent faults. Conventional design techniques expend energy to tolerate this unpredictability by adding safety margins to a circuit's operating voltage, clock frequency or charge stored per bit. However, the rising energy costs needed to compensate for increasing unpredictability are rapidly becoming unacceptable in today's environment where power consumption is often the limiting factor on integrated circuit performance and energy efficiency is a national concern. Reliability and energy consumption are both reaching key inflection points that, together, threaten to reduce or end the benefits of feature size reduction. To continue beneficial scaling, we must use a cross-layer, Jull-system-design approach to reliability. Unlike current systems, which charge every device a substantial energy tax in order to guarantee

  9. Cross-Cutting Activities 2016 on Wind Turbine Noise, Summary Report

    DEFF Research Database (Denmark)

    Bertagnolio, Franck; Aagaard Madsen, Helge; Fischer, Andreas

    2017-01-01

    The goal of this report is to summarize activities that took place in year 2016 as part of the Cross-Cutting Activity on Wind Turbine Noise, self-financed by DTU Wind Energy. A short description of the background behind this project (in particular Cross-Cutting Activities conducted in year 2015...

  10. [Nephrolithiasis in "disk-variant" cross-over renal dystopia. Report of a case].

    Science.gov (United States)

    Gebauer, B; Meyer, D R; Friedrich, M

    1998-01-01

    Renal dystopia is a frequent urogenital anomality. Renal dystopia encloses pelvic kidney or malascending kidney, but also rare anomalities like renal duplication or crossed renal dystopia. These allotopias are often diagnosed on routine examination of the urogenital system. We report a case with fused crossed renal dystopia on the left with atypical symptoms of nephrolithiasis and give a summery of the embryological origin.

  11. Oak Ridge Tokamak experimental power reactor study scoping report

    Energy Technology Data Exchange (ETDEWEB)

    Roberts, M.

    1977-03-01

    This report presents the scoping studies performed as the initial part of the program to produce a conceptual design for a Tokamak Experimental Power Reactor (EPR). The EPR as considered in this study is to employ all systems necessary for significant electric power production at continuous high duty cycle operation; it is presently scheduled to be the final technological step before a Demonstration Reactor Plant (Demo). The scoping study tasks begin with an exploration and identification of principal problem areas and then concentrate on consideration and evaluation of alternate design choices for each of the following major systems: Plasma Engineering and Physics, Nuclear, Electromagnetics, Neutral Beam Injection, and Tritium Handling. In addition, consideration has been given to the integration of these systems and requirements arising out of their incorporation into an EPR. One intent of this study is to document the paths explored in search of the appropriate EPR characteristics. To satisfy this intent, the explorations are presented in chart form outlining possible options in key areas with extensive supporting footnotes. An important result of the scoping study has been the development and definition of an EPR reference design to serve as (1) a common focus for the continuing design study and (2) a guide for associated development programs. In addition, the study has identified research and development requirements essential to facilitate the successful conceptual design, construction, and operation of an EPR.

  12. Extension of the energy range of experimental activation cross-sections data of deuteron induced nuclear reactions on indium up to 50MeV.

    Science.gov (United States)

    Tárkányi, F; Ditrói, F; Takács, S; Hermanne, A; Ignatyuk, A V

    2015-11-01

    The energy range of our earlier measured activation cross-sections data of longer-lived products of deuteron induced nuclear reactions on indium were extended from 40MeV up to 50MeV. The traditional stacked foil irradiation technique and non-destructive gamma spectrometry were used. No experimental data were found in literature for this higher energy range. Experimental cross-sections for the formation of the radionuclides (113,110)Sn, (116m,115m,114m,113m,111,110g,109)In and (115)Cd are reported in the 37-50MeV energy range, for production of (110)Sn and (110g,109)In these are the first measurements ever. The experimental data were compared with the results of cross section calculations of the ALICE and EMPIRE nuclear model codes and of the TALYS 1.6 nuclear model code as listed in the on-line library TENDL-2014. Copyright © 2015 Elsevier Ltd. All rights reserved.

  13. Comparative susceptibility of Channel Catfish, Blue Catfish, and their hybrid cross to experimental challenge with Bolbophorus damnificus (Digenea: Bolbophoridae) cercariae.

    Science.gov (United States)

    Griffin, Matt J; Reichley, Stephen R; Khoo, Lester H; Ware, Cynthia; Greenway, Terrence E; Mischke, Charles C; Wise, David J

    2014-06-01

    The digenetic trematode Bolbophorus damnificus has been implicated in significant losses in catfish aquaculture since the late 1990s. The complex life cycle sequentially involves the American white pelican Pelecanus erythrorhynchos, the marsh rams horn snail Planorbella trivolvis, and Channel Catfish Ictalurus punctatus. Research supports anecdotal reports from the industry, suggesting that the hybrid of Channel Catfish×Blue Catfish I. furcatus is less susceptible to disease agents that have been historically prohibitive to Channel Catfish production, namely the gram-negative bacteria Edwardsiella ictaluri and Flavobacterium columnare, as well as the myxozoan parasite Henneguya ictaluri. This current research compared the susceptibility of Channel Catfish, Blue Catfish, and their hybrid cross to an experimental challenge by B. damnificus. Fish were exposed to 0, 100, 200, and 400 B. damnificus cercariae per fish, and the numbers of metacercariae per fish were determined 14 d postchallenge. Metacercariae were recovered from all challenged fish. There were no significant differences among fish groups challenged with the same dose, suggesting Channel and Blue Catfish and their hybrid are comparably susceptible to B. damnificus infection. As such, it is recommended that producers raising hybrid catfish remain diligent in controlling populations of the snail intermediate host to prevent production losses attributed to B. damnificus, especially when loafing pelicans have been observed at the aquaculture operation.

  14. Final report for CCS cross-layer reliability visioning study

    Energy Technology Data Exchange (ETDEWEB)

    Quinn, Heather M [Los Alamos National Laboratory; Dehon, Andre [U. PENN; Carter, Nicj [INTEL

    2010-12-20

    The geometric rate of improvement of transistor size and integrated circuit performance known as Moore's Law has been an engine of growth for our economy, enabling new products and services, creating new value and wealth, increasing safety, and removing menial tasks from our daily lives. Affordable, highly integrated components have enabled both life-saving technologies and rich entertainment applications. Anti-lock brakes, insulin monitors, and GPS-enabled emergency response systems save lives. Cell phones, internet appliances, virtual worlds, realistic video games, and mp3 players enrich our lives and connect us together. Over the past 40 years of silicon scaling, the increasing capabilities of inexpensive computation have transformed our society through automation and ubiquitous communications. Looking forward, increasing unpredictability threatens our ability to continue scaling integrated circuits at Moore's Law rates. As the transistors and wires that make up integrated circuits become smaller, they display both greater differences in behavior among devices designed to be identical and greater vulnerability to transient and permanent faults. Conventional design techniques expend energy to tolerate this unpredictability by adding safety margins to a circuit's operating voltage, clock frequency or charge stored per bit. However, the rising energy costs needed to compensate for increasing unpredictability are rapidly becoming unacceptable in today's environment where power consumption is often the limiting factor on integrated circuit performance and energy efficiency is a national concern. Reliability and energy consumption are both reaching key inflection points that, together, threaten to reduce or end the benefits of feature size reduction. To continue beneficial scaling, we must use a cross-layer, Jull-system-design approach to reliability. Unlike current systems, which charge every device a substantial energy tax in order to guarantee

  15. Complications Using Bioabsorbable Cross-Pin Femoral Fixation: A Case Report and Review of the Literature

    Directory of Open Access Journals (Sweden)

    Saqib Hasan

    2011-01-01

    Full Text Available The use of bioabsorbable cross-pin transcondylar fixation has remained a viable option for femoral fixation in anterior cruciate ligament reconstruction. Although numerous biomechanical studies have demonstrated high fixation strength and minimal slippage with use of this method of fixation, there have been increasing reports of a variety of clinical complications associated with these implants. We reviewed the literature for all complications associated with the Bio-TransFix implant and present a case report of a patient status after ACL reconstruction using Bio-TransFix cross-pin femoral fixation with iliotibial band friction syndrome from a broken cross-pin four month post-operatively.

  16. Experimental verification of the individual energy dependencies of the partial L-shell photoionization cross sections of Pd and Mo.

    Science.gov (United States)

    Hönicke, Philipp; Kolbe, Michael; Müller, Matthias; Mantler, Michael; Krämer, Markus; Beckhoff, Burkhard

    2014-10-17

    An experimental method for the verification of the individually different energy dependencies of L(1)-, L(2)-, and L(3)- subshell photoionization cross sections is described. The results obtained for Pd and Mo are well in line with theory regarding both energy dependency and absolute values, and confirm the theoretically calculated cross sections by Scofield from the early 1970 s and, partially, more recent data by Trzhaskovskaya, Nefedov, and Yarzhemsky. The data also demonstrate the questionability of quantitative x-ray spectroscopical results based on the widely used fixed jump ratio approximated cross sections with energy independent ratios. The experiments are carried out by employing the radiometrically calibrated instrumentation of the Physikalisch-Technische Bundesanstalt at the electron storage ring BESSY II in Berlin; the obtained fluorescent intensities are thereby calibrated at an absolute level in reference to the International System of Units. Experimentally determined fixed fluorescence line ratios for each subshell are used for a reliable deconvolution of overlapping fluorescence lines. The relevant fundamental parameters of Mo and Pd are also determined experimentally in order to calculate the subshell photoionization cross sections independently of any database.

  17. Improving plant bioaccumulation science through consistent reporting of experimental data

    DEFF Research Database (Denmark)

    Fantke, Peter; Arnot, Jon A.; Doucette, William J.

    2016-01-01

    experimental data are generated they are used to improve our understanding of plant-chemical interactions that in turn allows for the development of better scientific knowledge and conceptual and predictive models. The interrelationship between experimental data and model development is an ongoing, never...

  18. Experimental method for the determination of two-photon cross sections using four-wave mixing

    Science.gov (United States)

    Burris, J.; Mcilrath, T. J.

    1985-01-01

    The two-photon absorption cross section for the R22 + S12(J double prime = 9 1/2) transition in nitric oxide's gamma band has been determined. The value is in good agreement with previous measurements on several other NO transitions. The technique described here can be used to obtain accurate cross sections for other diatomic molecules.

  19. Experimental method for the determination of two-photon cross sections using four-wave mixing

    Science.gov (United States)

    Burris, J.; Mcilrath, T. J.

    1985-01-01

    The two-photon absorption cross section for the R22 + S12(J double prime = 9 1/2) transition in nitric oxide's gamma band has been determined. The value is in good agreement with previous measurements on several other NO transitions. The technique described here can be used to obtain accurate cross sections for other diatomic molecules.

  20. Experimental evidence of giant pure optical activity in a metasurface based on a complementary twisted cross configuration

    CERN Document Server

    Díaz-Rubio, Ana; Carbonell, Jorge; Sánchez-Dehesa, José; Hibbins, Alastair

    2014-01-01

    This work presents an experimental study of giant and pure optical activity in a periodic structure consisting of twisted crosses and complementary crosses patterned on the sides of a copper coated dielectric board. Additionally, a multilayer system is proposed and numerically studied to broaden the transmission bandwidth. Our results show that a dual band behavior can be obtained due to coupling effects between the layers whilst maintaining the dispersionless giant optical activity and negligible circular dichroism. We theoretically study the effect of the separation between layers and its influence on the transmission spectra.

  1. Collisional Cross-Sections with T-Wave Ion Mobility Spectrometry without Experimental Calibration

    Science.gov (United States)

    Mortensen, Daniel N.; Susa, Anna C.; Williams, Evan R.

    2017-07-01

    A method for relating traveling-wave ion mobility spectrometry (TWIMS) drift times with collisional cross-sections using computational simulations is presented. This method is developed using SIMION modeling of the TWIMS potential wave and equations that describe the velocity of ions in gases induced by electric fields. The accuracy of this method is assessed by comparing the collisional cross-sections of 70 different reference ions obtained using this method with those obtained from static drift tube ion mobility measurements. The cross-sections obtained here with low wave velocities are very similar to those obtained using static drift (average difference = 0.3%) for ions formed from both denaturing and buffered aqueous solutions. In contrast, the cross-sections obtained with high wave velocities are significantly greater, especially for ions formed from buffered aqueous solutions. These higher cross-sections at high wave velocities may result from high-order factors not accounted for in the model presented here or from the protein ions unfolding during TWIMS. Results from this study demonstrate that collisional cross-sections can be obtained from single TWIMS drift time measurements, but that low wave velocities and gentle instrument conditions should be used in order to minimize any uncertainties resulting from high-order effects not accounted for in the present model and from any protein unfolding that might occur. Thus, the method presented here eliminates the need to calibrate TWIMS drift times with collisional cross-sections measured using other ion mobility devices.

  2. Exogenous collagen cross-linking recovers tendon functional integrity in an experimental model of partial tear.

    Science.gov (United States)

    Fessel, Gion; Wernli, Jeremy; Li, Yufei; Gerber, Christian; Snedeker, Jess G

    2012-06-01

    We investigated the hypothesis that exogenous collagen cross-linking can augment intact regions of tendon to mitigate mechanical propagation of partial tears. We first screened the low toxicity collagen cross-linkers genipin, methylglyoxal and ultra-violet (UV) light for their ability to augment tendon stiffness and failure load in rat tail tendon fascicles (RTTF). We then investigated cross-linking effects in load bearing equine superficial digital flexor tendons (SDFT). Data indicated that all three cross-linking agents augmented RTTF mechanical properties but reduced native viscoelasticity. In contrast to effects observed in fascicles, methylglyoxal treatment of SDFT detrimentally affected tendon mechanical integrity, and in the case of UV did not alter tendon mechanics. As in the RTTF experiments, genipin cross-linking of SDFT resulted in increased stiffness, higher failure loads and reduced viscoelasticity. Based on this result we assessed the efficacy of genipin in arresting tendon tear propagation in cyclic loading to failure. Genipin cross-linking secondary to a mid-substance biopsy-punch significantly reduced tissue strains, increased elastic modulus and increased resistance to fatigue failure. We conclude that genipin cross-linking of injured tendons holds potential for arresting tendon tear progression, and that implications of the treatment on matrix remodeling in living tendons should now be investigated.

  3. Nuclear Test-Experimental Science: Annual report, fiscal year 1988

    Energy Technology Data Exchange (ETDEWEB)

    Struble, G.L.; Donohue, M.L.; Bucciarelli, G.; Hymer, J.D.; Kirvel, R.D.; Middleton, C.; Prono, J.; Reid, S.; Strack, B. (eds.)

    1988-01-01

    Fiscal year 1988 has been a significant, rewarding, and exciting period for Lawrence Livermore National Laboratory's nuclear testing program. It was significant in that the Laboratory's new director chose to focus strongly on the program's activities and to commit to a revitalized emphasis on testing and the experimental science that underlies it. It was rewarding in that revolutionary new measurement techniques were fielded on recent important and highly complicated underground nuclear tests with truly incredible results. And it was exciting in that the sophisticated and fundamental problems of weapons science that are now being addressed experimentally are yielding new challenges and understanding in ways that stimulate and reward the brightest and best of scientists. During FY88 the program was reorganized to emphasize our commitment to experimental science. The name of the program was changed to reflect this commitment, becoming the Nuclear Test-Experimental Science (NTES) Program.

  4. Experimental and Numerical Investigation of the Tracer Gas Methodology in the Case of a Naturally Cross-Ventilated Building

    DEFF Research Database (Denmark)

    Nikolopoulos, Nikos; Nikolopoulos, Aristeidis; Larsen, Tine Steen

    2012-01-01

    The paper presents the investigation of a naturally cross – ventilated building using both experimental and numerical methods with the parameters being the free-stream and the incidence angle of the wind to the openings of the building. The experimental methodology calculates the air change rate...... based either on measurements of the inlet velocity profile, the outlet velocity profile or the descending rate of the tracer gas concentration using the decay method. The numerical investigation is based on the solution of the governing Navier-Stokes equations in their full three dimensional expression......, focusing on the time dependent character of the induced flow field. The numerical results are compared with corresponding experimental data for the three aforementioned experimental methodologies in the case of a full scale building inside a wind-tunnel. The numerical investigation reveals that for large...

  5. Cross Domain Deterrence: Livermore Technical Report, 2014-2016

    Energy Technology Data Exchange (ETDEWEB)

    Barnes, Peter D. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Bahney, Ben [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Matarazzo, Celeste [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Markey, Michael [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Pearl, Jonathan [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-08-03

    Lawrence Livermore National Laboratory (LLNL) is an original collaborator on the project titled “Deterring Complex Threats: The Effects of Asymmetry, Interdependence, and Multi-polarity on International Strategy,” (CDD Project) led by the UC Institute on Global Conflict and Cooperation at UCSD under PIs Jon Lindsay and Erik Gartzke , and funded through the DoD Minerva Research Initiative. In addition to participating in workshops and facilitating interaction among UC social scientists, LLNL is leading the computational modeling effort and assisting with empirical case studies to probe the viability of analytic, modeling and data analysis concepts. This report summarizes LLNL work on the CDD Project to date, primarily in Project Years 1-2, corresponding to Federal fiscal year 2015. LLNL brings two unique domains of expertise to bear on this Project: (1) access to scientific expertise on the technical dimensions of emerging threat technology, and (2) high performance computing (HPC) expertise, required for analyzing the complexity of bargaining interactions in the envisioned threat models. In addition, we have a small group of researchers trained as social scientists who are intimately familiar with the International Relations research. We find that pairing simulation scientists, who are typically trained in computer science, with domain experts, social scientists in this case, is the most effective route to developing powerful new simulation tools capable of representing domain concepts accurately and answering challenging questions in the field.

  6. Numerical and experimental analysis of an in-scale masonry cross-vault prototype up to failure

    Energy Technology Data Exchange (ETDEWEB)

    Rossi, Michela; Calderini, Chiara; Lagomarsino, Sergio [Department of Civil, Chemical and Environmental Engineering, University of Genoa, Via Montallegro 1, Genoa (Italy); Milani, Gabriele [Department of Architecture, Built Environment and Construction Engineering, Milan Polytechnic University, Piazza Leonardo da Vinci 32, Milan (Italy)

    2015-12-31

    A heterogeneous full 3D non-linear FE approach is validated against experimental results obtained on an in-scale masonry cross vault assembled with dry joints, and subjected to various loading conditions consisting on imposed displacement combinations to the abutments. The FE model relies into a discretization of the blocks by means of few rigid-infinitely resistant parallelepiped elements interacting by means of planar four-noded interfaces, where all the deformation (elastic and inelastic) occurs. The investigated response mechanisms of vault are the shear in-plane distortion and the longitudinal opening and closing mechanism at the abutments. After the validation of the approach on the experimentally tested cross-vault, a sensitivity analysis is conducted on the same geometry, but in real scale, varying mortar joints mechanical properties, in order to furnish useful hints for safety assessment, especially in presence of seismic action.

  7. Experimental Study on Coupled Cross-Flow and in-Line Vortex-Induced Vibration of Flexible Risers

    Institute of Scientific and Technical Information of China (English)

    GUO Hai-yan; LOU Min

    2008-01-01

    In this work, we study the coupled cross-flow and in-line vortex-induced vibration (VIV) of a fixedly mounted flexible pipe, which is free to move in cross-flow (Y-) and in-line (X-) direction in a fluid flow where the mass and natural frequencies are precisely the same in both X- and Y-direction. The fluid speed varies from low to high with the corresponding vortex shedding frequency varying from below the first natural frequency to above the second natural frequency of the flexible pipe. Particular emphasis was placed on the investigation of the relationship between in-line and cross-flow vibration. The experimental results analyzed by using these measurements exhibits several valuable features.

  8. Cross-Network Information Dissemination in Vehicular Ad hoc Networks (VANETs: Experimental Results from a Smartphone-Based Testbed

    Directory of Open Access Journals (Sweden)

    Gianluigi Ferrari

    2013-08-01

    Full Text Available In this work, we present an innovative approach for effective cross-network information dissemination, with applications to vehicular ad hoc networks (VANETs. The proposed approach, denoted as "Cross-Network Effective Traffic Alert Dissemination" (X-NETAD, leverages on the spontaneous formation of local WiFi (IEEE 802.11b VANETs, with direct connections between neighboring vehicles, in order to disseminate, very quickly and inexpensively, traffic alerts received from the cellular network. The proposed communication architecture has been implemented on Android smartphones. The obtained experimental results show that an effective cross-network information dissemination service can entirely rely on smartphone-based communications. This paves the way to future Internet architectures, where vehicles will play a key role as information destinations and sources.

  9. Reporting of conflicts of interest from drug trials in Cochrane reviews : cross sectional study

    NARCIS (Netherlands)

    Roseman, Michelle; Turner, Erick H.; Lexchin, Joel; Coyne, James C.; Bero, Lisa A.; Thombs, Brett D.

    2012-01-01

    Objectives To investigate the degree to which Cochrane reviews of drug interventions published in 2010 reported conflicts of interest from included trials and, among reviews that reported this information, where it was located in the review documents. Design Cross sectional study. Data sources Cochr

  10. Effects of Sure Start local programmes on children and families: early findings from a quasi-experimental, cross sectional study

    OpenAIRE

    2006-01-01

    Objective To evaluate the effects of Sure Start local programmes (SSLPs) on children and their families. To assess whether variations in the effectiveness of SSLPs are due to differences in implementation. \\ud \\ud Design Quasi-experimental cross sectional study using interviews with mothers and cognitive assessment of children aged 36 months who speak English. \\ud \\ud Setting Socially deprived communities in England: 150 communities with ongoing SSLPs and 50 comparison communities. \\ud \\ud Pa...

  11. Retrieval of Droplet size Density Distribution from Multiple field of view Cross polarized Lidar Signals: Theory and Experimental Validation

    Science.gov (United States)

    2016-06-02

    is derived to facilitate use of secondary polarization. The model is supported by exper- imental MFOV lidar measurements carried out in a controlled ...Retrieval of droplet-size density distribution from multiple-field-of- view cross-polarized lidar signals: theory and experimental validation...Gilles Roy, Luc Bissonnette, Christian Bastille, and Gilles Vallee Multiple-field-of- view (MFOV) secondary-polarization lidar signals are used to

  12. Numerical and experimental analysis of a darrieus-type cross flow water turbine in bare and shrouded configurations

    Energy Technology Data Exchange (ETDEWEB)

    Roa, A M; Aumelas, V; MaItre, T; Pellone, C, E-mail: ane.mentxaka@hmg.inpg.f [Equipe Energetique, Grenoble-INP - LEGI (Laboratory of Geophysical and Industrial Flows), Domaine Universitaire - BP 53, Grenoble cedex 9, 38041 (France)

    2010-08-15

    The aim of this paper is to present the results of the analysis of a Darrieus-type cross flow water turbine in bare and shrouded configurations. Numerical results are compared to experimental data and differences found in values are also highlighted. The benefit of the introduction of a channelling device, which generates an efficiency increment factor varying from 2 to 5, depending on the configuration, is discussed.

  13. Numerical and experimental analysis of a darrieus-type cross flow water turbine in bare and shrouded configurations

    Science.gov (United States)

    Roa, A. M.; Aumelas, V.; Maître, T.; Pellone, C.

    2010-08-01

    The aim of this paper is to present the results of the analysis of a Darrieus-type cross flow water turbine in bare and shrouded configurations. Numerical results are compared to experimental data and differences found in values are also highlighted. The benefit of the introduction of a channelling device, which generates an efficiency increment factor varying from 2 to 5, depending on the configuration, is discussed.

  14. Cross-Scale: Multi-Scale Coupling in Space Plasma, Assessment Study Report

    CERN Document Server

    Schwartz, Steve; Fujimoto, Masaki; Hellinger, Petr; Kessel, Mona; Le, Guan; Liu, William; Louarn, Philippe; Mann, Ian; Nakamura, Rumi; Owen, Chris; Pinçon, Jean-Louis; Sorriso-Valvo, Luca; Vaivads, Andris; Wimmer-Schweingruber, Robert F

    2009-01-01

    Driven by the support and interest of the international space plasma community to examine simultaneous physical plasma scales and their interactions, the Cross-Scale Mission concept was submitted and accepted as an ESA Cosmic Vision M-class candidate mission. This report presents an overview of the assessment study phase of the 7 ESA spacecraft Cross-Scale mission. Where appropriate, discussion of the benefit of international collaboration with the SCOPE mission, as well as other interested parties, is included.

  15. Cross-talk studies between FCC-hh Experimental Interaction Regions

    CERN Document Server

    Abelleira, Jose; Appleby, Robert Barrie; Rafique, Haroon; Besana, Maria Ilaria

    2017-01-01

    Debris from 50 TeV proton-proton collisions at the main interaction point in the FCC-hh may contribute to the background in the subsequent detector. This cross-talk is of possible concern for the FCC-hh due to the high luminosity and energy of the collider. DPMJET-III is used as a collision debris generator in order to assess the muon cross-talk contribution. An analytical calculation of muon range in rock is performed. This is followed by a full Monte Carlo simulation using FLUKA, where the accelerator tunnel has been modelled. The muon cross talk between the adjacent interaction points is assessed and its implications for FCC-hh design are discussed.

  16. Extension of the energy range of the experimental activation cross-sections data of longer-lived products of proton induced nuclear reactions on dysprosium up to 65 MeV

    CERN Document Server

    Tárkányi, F; Takács, S; Hermanne, A; Ignatyuk, A V

    2016-01-01

    Activation cross-sections data of longer-lived products of proton induced nuclear reactions on dysprosium were extended up to 65 MeV by using stacked foil irradiation and gamma spectrometry experimental methods. Experimental cross-sections data for the formation of the radionuclides $^{159}$Dy, $^{157}$Dy, $^{155}$Dy, $^{161}$Tb, $^{160}$Tb, $^{156}$Tb, $^{155}$Tb, $^{154m2}$Tb, $^{154m1}$Tb, $^{154g}$Tb, $^{153}$Tb, $^{152}$Tb and $^{151}$Tb are reported in the 36-65 MeV energy range, and compared with an old dataset from 1964. The experimental data were also compared with the results of cross section calculations of the ALICE and EMPIRE nuclear model codes and of the TALYS nuclear reaction model code as listed in the latest on-line libraries TENDL 2013.

  17. Extension of the energy range of the experimental activation cross-sections data of longer-lived products of proton induced nuclear reactions on dysprosium up to 65MeV.

    Science.gov (United States)

    Tárkányi, F; Ditrói, F; Takács, S; Hermanne, A; Ignatyuk, A V

    2015-04-01

    Activation cross-sections data of longer-lived products of proton induced nuclear reactions on dysprosium were extended up to 65MeV by using stacked foil irradiation and gamma spectrometry experimental methods. Experimental cross-sections data for the formation of the radionuclides (159)Dy, (157)Dy, (155)Dy, (161)Tb, (160)Tb, (156)Tb, (155)Tb, (154m2)Tb, (154m1)Tb, (154g)Tb, (153)Tb, (152)Tb and (151)Tb are reported in the 36-65MeV energy range, and compared with an old dataset from 1964. The experimental data were also compared with the results of cross section calculations of the ALICE and EMPIRE nuclear model codes and of the TALYS nuclear reaction model code as listed in the latest on-line libraries TENDL 2013. Copyright © 2015. Published by Elsevier Ltd.

  18. Final Report: Experimental Investigation of Nonlinear Plasma Wake-Fields

    Energy Technology Data Exchange (ETDEWEB)

    Rosenzweig, J.

    1997-10-31

    We discuss the exploration of the newly proposed blowout regime of the plasma wakefield accelerator and advanced photoinjector technology for linear collider applications. The plasma wakefield experiment at ANL produced several ground-breaking results in the physics of the blowout regime. The photoinjector R and D effort produced breakthroughs in theoretical, computational, and experimental methods in high brightness beam physics. Results have been published.

  19. Final Report: Experimental Investigation of Nonlinear Plasma Wake-Fields

    Energy Technology Data Exchange (ETDEWEB)

    Rosenzweig, J.

    1997-10-31

    We discuss the exploration of the newly proposed blowout regime of the plasma wakefield accelerator and advanced photoinjector technology for linear collider applications. The plasma wakefield experiment at ANL produced several ground-breaking results in the physics of the blowout regime. The photoinjector R and D effort produced breakthroughs in theoretical, computational, and experimental methods in high brightness beam physics. Results have been published.

  20. Experimental study on the temperature dependence of ultraviolet absorption cross-sections of sulfur dioxide

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    The photoabsorption cross-sections of sulfur dioxide were measured in the spectral regions of 200-230 nm and 275 315 nm at 298-415 K,using a grating monochromator with a resolution of 0.2 nm.The discrete absorption cross-section is directly correlated with the number of quantum excited from the base state.The absorption cross-sections at the peaks of discrete bands decreased linearly with the increase of temperature,which corresponded to the decrease in the population of vibrational and rotational transitions from the base level to higher excitation levels.The absorption cross-section peaks decreased linearly when the temperature increased from 298 to 415 K,with relative drops of 74.0% and 75.8% at 200-230 nm and 275-315 nm,respectively.Another distinctive feature of sulfur dioxide absorption spectra in the above two spectral regions was the quasiperiodic structure of the absorption peaks,whose equal wavelength intervals were 1.53 nm and 1.95 nm,respectively.Red and blue shifts were not found at the absorption peak positions.

  1. New experimental molecular stopping cross section data of Al{sub 2}O{sub 3}, for heavy ions

    Energy Technology Data Exchange (ETDEWEB)

    Simon, Aliz, E-mail: Aliz.Simon@iaea.org [International Atomic Energy Agency, Division of Physical and Chemical Sciences, Vienna International Centre, P.O. Box 100, A-1400 Vienna (Austria); Institute of Nuclear Research of the Hungarian Academy of Sciences, (ATOMKI), P.O. Box 51, H-4001 Debrecen (Hungary); Pessoa Barradas, Nuno [Centro de Ciências e Tecnologias Nucleares, Instituto Superior Técnico, Unversidade de Lisboa, Estrada Nacional 10 ao km 139, 7, 2695-066 Bobadela LRS (Portugal); Bergmaier, Andreas [Institut für Angewandte Physik und Messtechnik, Fakultät für Luft und Raumfahrttechnik, Werner-Heisenberg-Weg 39, D-85577 Neubiberg (Germany); Msimanga, Mandlenkosi [iThemba LABS Gauteng, Private Bag 11, WITS, 2050 Johannesburg (South Africa); Bogdanovic Radovic, Iva [Ruđer Bošković Institute, Bijenicka Cesta 54, P.O. Box 180, 10000 Zagreb (Croatia); Räisänen, Jyrki [Department of Physics, University of Helsinki, P.O. Box 43, FI-00014 University of Helsinki (Finland); Sajavaara, Timo [Department of Physics, University of Jyväskylä, Survontie 9, 40014 Jyväskylä (Finland)

    2014-08-01

    Molecular stopping cross section data of Al{sub 2}O{sub 3}, for heavy ions of {sup 12}C, {sup 16}O, {sup 28}Si, {sup 35}Cl, {sup 79}Br within the energy range of 0.01–1.0 MeV/nucleon were measured. Both direct transmission and bulk analysis methods were applied. Stopping cross sections were calculated both with the SRIM and MSTAR codes. Evaluation and intercomparison of the new data with the calculated and previously measured ones are reported in this paper.

  2. Numerical And Experimental Study On Producing Aluminum Alloy 6061 Shafts By Cross Wedge Rolling Using A Universal Rolling Mill

    Directory of Open Access Journals (Sweden)

    Tofil A.

    2015-06-01

    Full Text Available The paper presents a selection of numerical and theoretical results of the cross wedge rolling process for producing stepped shafts made of aluminum alloy 6061. The numerical modeling was performed using the FEM-based Simufact Forming simulation software. In the simulations, we examined the kinematics of metal flow and determined the distribution patterns of effective strains, temperatures, axial stresses and the Cockroft-Latham damage criterion. Variations in the rolling forces were determined, too. The numerical results were verified experimentally using a universal rolling mill designed and constructed by the present authors. This machine can be used to perform such processes as cross wedge rolling, longitudinal rolling and round bar cropping. During the experiments, we examined process stability and finished product geometry and recorded the torques. The experimental results confirm that axisymmetric aluminum alloy shafts can be produced by cross wedge rolling with two rolls. Last but not least, the experiments served to evaluate the technological potential of the rolling mill used.

  3. TIBER: Tokamak Ignition/Burn Experimental Research. Final design report

    Energy Technology Data Exchange (ETDEWEB)

    Henning, C.D.; Logan, B.G.; Barr, W.L.; Bulmer, R.H.; Doggett, J.N.; Johnson, B.M.; Lee, J.D.; Hoard, R.W.; Miller, J.R.; Slack, D.S.

    1985-11-01

    The Tokamak Ignition/Burn Experimental Research (TIBER) device is the smallest superconductivity tokamak designed to date. In the design plasma shaping is used to achieve a high plasma beta. Neutron shielding is minimized to achieve the desired small device size, but the superconducting magnets must be shielded sufficiently to reduce the neutron heat load and the gamma-ray dose to various components of the device. Specifications of the plasma-shaping coil, the shielding, coaling, requirements, and heating modes are given. 61 refs., 92 figs., 30 tabs. (WRF)

  4. Paternal leakage of mitochondrial DNA in experimental crosses of populations of the potato cyst nematode Globodera pallida.

    Science.gov (United States)

    Hoolahan, Angelique H; Blok, Vivian C; Gibson, Tracey; Dowton, Mark

    2011-12-01

    Animal mtDNA is typically assumed to be maternally inherited. Paternal mtDNA has been shown to be excluded from entering the egg or eliminated post-fertilization in several animals. However, in the contact zones of hybridizing species and populations, the reproductive barriers between hybridizing organisms may not be as efficient at preventing paternal mtDNA inheritance, resulting in paternal leakage. We assessed paternal mtDNA leakage in experimental crosses of populations of a cyst-forming nematode, Globodera pallida. A UK population, Lindley, was crossed with two South American populations, P5A and P4A. Hybridization of these populations was supported by evidence of nuclear DNA from both the maternal and paternal populations in the progeny. To assess paternal mtDNA leakage, a ~3.4 kb non-coding mtDNA region was analyzed in the parental populations and in the progeny. Paternal mtDNA was evident in the progeny of both crosses involving populations P5A and P4A. Further, paternal mtDNA replaced the maternal mtDNA in 22 and 40 % of the hybrid cysts from these crosses, respectively. These results indicate that under appropriate conditions, paternal leakage occurs in the mtDNA of parasitic nematodes, and supports the hypothesis that hybrid zones facilitate paternal leakage. Thus, assumptions of strictly maternal mtDNA inheritance may be frequently violated, particularly when divergent populations interbreed.

  5. An experimental study of sound generated by flows around cylinders of different cross-section

    Science.gov (United States)

    King, W. F.; Pfizenmaier, E.

    2009-12-01

    The sound radiated by rigid cylinders placed transversely in a uniform stream has been measured in an anechoic wind tunnel over a range of Mach numbers ( M=0.09-0.2). The cylinders have different cross-sections, e.g., circular, square, rectangular, elliptic, and circular with lateral ribs or knurled surfaces. Different length to diameter ratios of the cylinders are also investigated. Results are presented as narrow band spectra, measured in the far field (acoustic as well as geometric). All spectra are presented with dimensionless (scaled) axes, as well as the original dimensional scales. It is shown that elliptic cross-sections are less noisy, compared to all other cylinders, but noise abatement techniques such as lateral ribs and knurled surfaces can also reduce tonal radiated noise. Two practical applications of these experiments are the reduction of radiated noise from pantographs of high-speed railway trains, and from the landing gear of modern passenger aircraft.

  6. Experimental cross section of {sup 144}Sm({alpha},{gamma}){sup 148}Gd

    Energy Technology Data Exchange (ETDEWEB)

    Somorjai, E. [Atomki, Debrecen (Hungary); Fueloep, Zs. [Atomki, Debrecen (Hungary); Kiss, A.Z. [Atomki, Debrecen (Hungary); Rolfs, C. [Ruhr-Universitaet, Bochum (Germany); Trautvetter, H.-P. [Ruhr-Universitaet, Bochum (Germany); Greife, U. [Ruhr-Universitaet, Bochum (Germany); Junker, M. [Ruhr-Universitaet, Bochum (Germany); Arnould, M. [Universite Libre de Bruxelles, Bruxelles (Belgium); Rayet, M. [Universite Libre de Bruxelles, Bruxelles (Belgium); Oberhummer, H. [Technische Universitaet, Vienna (Austria)

    1997-08-04

    The cross section of the {sup 144}Sm({alpha},{gamma}){sup 148} Gd reaction has been measured in the bombarding energy range of 10.5-13.4 MeV, using activation method based on the off-line {alpha}-activity measurement of the {sup 148}Gd residual nucleus. The long measuring time of the alpha decay demanded the utilization of solid state nuclear track detectors (SSNTD). The first results are compared to the latest statistical model calculations. (orig.).

  7. Report on projected future climate of the Goodwin Creek experimental watershed, MS

    Science.gov (United States)

    This report is one of several reports that provide technical information on projected climate change at selected ARS experimental watersheds across the continental United States and for three greenhouse gas emission scenarios. The report is an attachment to the main report of the multi-location pro...

  8. Experimental and modeling study of thermal rate coefficients and cross sections for electron attachment to C(60).

    Science.gov (United States)

    Viggiano, Albert A; Friedman, Jeffrey F; Shuman, Nicholas S; Miller, Thomas M; Schaffer, Linda C; Troe, Jürgen

    2010-05-21

    Thermal electron attachment to C(60) has been studied by relative rate measurements in a flowing afterglow Langmuir probe apparatus. The rate coefficients of the attachment k(1) are shown to be close to 10(-6) cm(3) s(-1) with a small negative temperature coefficient. These results supersede measurements from the 1990s which led to much smaller values of k(1) with a large positive temperature coefficient suggesting an activation barrier. Theoretical modeling of k(1) in terms of generalized Vogt-Wannier capture theory shows that k(1) now looks more consistent with measurements of absolute attachment cross sections sigma(at) than before. The comparison of capture theory and experimental rate or cross section data leads to empirical correction factors, accounting for "intramolecular vibrational relaxation" or "electron-phonon coupling," which reduce k(1) below the capture results and which, on a partial wave-selected level, decrease with increasing electron energy.

  9. Experimental differential cross sections, level densities, and spin cutoffs as a testing ground for nuclear reaction codes

    Science.gov (United States)

    Voinov, A. V.; Grimes, S. M.; Brune, C. R.; Bürger, A.; Görgen, A.; Guttormsen, M.; Larsen, A. C.; Massey, T. N.; Siem, S.

    2013-11-01

    Proton double-differential cross sections from 59Co(α,p)62Ni, 57Fe(α,p)60Co, 56Fe(7Li,p)62Ni, and 55Mn(6Li,p)60Co reactions have been measured with 21-MeV α and 15-MeV lithium beams. Cross sections have been compared against calculations with the empire reaction code. Different input level density models have been tested. It was found that the Gilbert and Cameron [A. Gilbert and A. G. W. Cameron, Can. J. Phys.0008-420410.1139/p65-139 43, 1446 (1965)] level density model is best to reproduce experimental data. Level densities and spin cutoff parameters for 62Ni and 60Co above the excitation energy range of discrete levels (in continuum) have been obtained with a Monte Carlo technique. Excitation energy dependencies were found to be inconsistent with the Fermi-gas model.

  10. Experimental Investigation of Cross-Flow Axis Marine Hydrokinetic Turbines, Including Effects of Waves and Turbulence

    Science.gov (United States)

    Wosnik, M.; Bachant, P.

    2011-12-01

    A new test bed for Marine Hydrokinetic (MHK) turbines at the Center for Ocean Renewable Energy at the University of New Hampshire (UNH-CORE) was used to evaluate the performance of different cross-flow axis hydrokinetic turbines, and investigate the effects of waves and turbulence on these devices. The test bed was designed and built to operate in the UNH tow and wave tank, which has a cross section of 3.67m (width) x 2.44m (depth). In the present configuration, tow speeds of up to 3 m/s can be achieved for smaller turbine models, and up to 1.5 m/s for large turbine models with low gear ratio. It features a flap style wave maker at one end that is capable of producing waves with 1-5 s periods up to 0.4 m wave height. Turbine thrust (drag) and mechanical power output (torque, angular velocity) were measured at tow speeds of 0.6-1.5 m/s for two cross-flow axis MHK turbines: a Gorlov Helical Turbine (GHT) and a Lucid spherical turbine (LST). Both were provided by Lucid Energy Technologies, LLP, and have frontal areas of 1.3 (GHT) and 1.0 (LST) square meters, respectively. GHT performance was also measured in progressive waves of various periods, grid turbulence, and in the wake of a cylinder, installed upstream at various cross-stream locations. Overall, the GHT performs with higher power and thrust (drag) coefficients than the LST. A 2nd law efficiency, or kinetic exergy efficiency, was defined to calculate what fraction of the kinetic energy removed from the flow is converted to usable shaft work by each turbine. The exergy efficiency varies with tip speed ratio but approaches 90% for the optimum operating conditions for each turbine. The fraction of kinetic energy removed from the fluid that is not converted to shaft work is redistributed into turbulent kinetic energy in the wake. Quantifying the kinetic energy flowing out of the turbine is important for modeling of environmental transport processes and for predicting performance when turbines are used in arrays

  11. Experimental stand for investigation of fluid flow in heat exchangers with cross-flow arrangement

    Directory of Open Access Journals (Sweden)

    Łopata Stanisław

    2017-01-01

    Full Text Available The operation analysis of high-performance heat exchanger with tubes elliptical indicated that the heat exchangers can be subject to damage. The reason for this is probably improper distribution of working fluid in tubular space of heat exchanger. Therefore, a part of the tubes may be improperly cooled and subject to compressible stresses. The paper presents an experimental stand allowing to confirm the given assumption. The experimental investigation enables to examine the mass flow rate in heat exchanger tubes. Also, it is possible to assess the impact of the construction of inlet, intermediate and outlet chambers on the flow distribution within the heat exchanger tubes.

  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. Geothermal Loop Experimental Facility. Quarterly report, April-June 1979

    Energy Technology Data Exchange (ETDEWEB)

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

    1979-07-01

    Since the Geothermal Loop Experimental Facility (GLEF) start-up in May, 1976, a substantial amount of information has been obtained on the operation of the plant and its components, brine and steam composition, production and injection wells, and the potential of the Niland Reservoir. The GLEF was modified in April, 1978, from a four stage flash/binary process to a two stage flash cycle for the extraction of energy from a high temperature, high salinity, liquid-dominated resource. A Reactor Clarifier/Media Filter System was put in operation in May, 1979 to demonstrate that suspended solids in the brine could be removed prior to brine injection into the reservoir. The general operations and accomplishments of the GLEF during the period are summarized.

  14. Experimental studies of the Negative Ion of Hydrogen. Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Bryant, Howard C.

    1999-06-30

    This document presents an overview of the results of the DOE'S support of experimental research into the structure and interactions of the negative ion of hydrogen conducted by the Department of Physics and Astronomy of the University of New Mexico at the Los Alamos National Laboratory. The work involves many collaborations with scientists from both institutions, as well as others. Although official DOE support for this work began in 1977, the experiment that led to it was done in 1971, near the time the 800 MeV linear accelerator at Los Alamos (LAMPF) first came on line. Until the mid nineties, the work was performed using the relativistic beam at LAMFF. The most recent results were obtained using the 35 keV injector beam for the Ground Test Accelerator at Los Alamos. A list of all published results from this work is presented.

  15. Geothermal Loop Experimental Facility. Quarterly report, April--June 1978

    Energy Technology Data Exchange (ETDEWEB)

    Bischoff, W.S.; Bishop, H.K.; Cooney, C.S.; Hanenburg, W.H.; Hoaglin, G.J.; Jacobson, W.O.; Mulliner, D.K.; Newell, D.G.; Swanson, C.R.

    1978-07-01

    The Geothermal Loop Experimental Facility (GLEF) was modified to use a two stage flash process with two parallel flash trains for the extraction of energy from a high temperature, high salinity, liquid-dominated resource. Since plant start-up in May 1976, a substantial amount of information has been obtained on the operation of the plant, components, brine and steam composition, production and injection wells, and the potential of the Niland Reservoir. The general operation and accomplishments of the GLEF during the period April 1978 through June 1978 are discussed. The GLEF underwent a major redesign. Modifications and inspections of various GLEF equipment and systems are also discussed. Information about the production and injection wells flow testing and instrumentation are discussed. Information regarding coatings and linings for valves and piping is included. In the Chemistry Section there is a wide range of data taken from Brine, Steam, Scale, Binary, Condensate, and Cooling Water Systems.

  16. Cross-validation of the benzodiazepine dependence self-report questionnaire in outpatient benzodiazepine users.

    NARCIS (Netherlands)

    Kan, C.C.; Breteler, M.H.M.; Ven, A.H.G.S. van der; Zitman, F.G.

    2001-01-01

    The aim of this study was to cross-validate the Benzodiazepine Dependence Self-Report Questionnaire (Bendep-SRQ), which reflects the severity of benzodiazepine (BZD) dependence. The Bendep-SRQ, Symptom Checklist-90 (SCL-90) Schedules for Clinical Assessments in Neuropsychiatry (SCAN), and Addiction

  17. Cross-validation of the Benzodiazepine Dependence Self-Report Questionnaire in Outpatient Benzodiazepine Users

    NARCIS (Netherlands)

    Kan, C.C.; Breteler, M.H.M.; Ven, A.H.G.S. van der; Zitman, F.G.

    2001-01-01

    The aim of this study was to cross-validate the Benzodiazepine Dependence Self-Report Questionnaire (Bendep-SRQ), which reflects the severity of benzodiazepine (BZD) dependence. The Bendep-SRQ, Symptom Checklist-90 (SCL-90) Schedules for Clinical Assessments in Neuropsychiatry (SCAN), and Addiction

  18. 77 FR 25474 - Cross-Media Electronic Reporting: Authorized Program Revision Approval, State of Florida

    Science.gov (United States)

    2012-04-30

    ... Programs; and Part 272--Approved State Hazardous Waste Management Programs. FDEP was notified of EPA's... AGENCY Cross-Media Electronic Reporting: Authorized Program Revision Approval, State of Florida AGENCY... State of Florida's request ] to revise/modify certain of its EPA-authorized programs to allow...

  19. 77 FR 68770 - Cross-Media Electronic Reporting: Authorized Program Revision Approval, State of Vermont

    Science.gov (United States)

    2012-11-16

    ...--State Underground Injection Control Programs; Part 272--Approved State Hazardous Waste Management... AGENCY Cross-Media Electronic Reporting: Authorized Program Revision Approval, State of Vermont AGENCY... State of Vermont's request to revise/modify certain of its EPA-authorized programs to allow...

  20. Texas Experimental Tokamak. Technical progress report, April 1990--April 1993

    Energy Technology Data Exchange (ETDEWEB)

    Wootton, A.J.

    1993-04-01

    This progress report covers the period from November 1, 1990 to April 30, 1993. During that period, TEXT was operated as a circular tokamak with a material limiter. It was devoted to the study of basic plasma physics, in particular to study of fluctuations, turbulence, and transport. The purpose is to operate and maintain TEXT Upgrade as a complete facility for applied tokamak physics, specifically to conduct a research program under the following main headings: (1) to elucidate the mechanisms of working gas, impurity, and thermal transport in tokamaks, in particular to understand the role of turbulence; (2) to study physics of the edge plasma, in particular the turbulence; (3) to study the physics or resonant magnetic fields (ergodic magnetic divertors, intra island pumping); and (4) to study the physics of electron cyclotron heating (ECRH). Results of studies in each of these areas are reported.

  1. Cross-Validation of Numerical and Experimental Studies of Transitional Airfoil Performance

    DEFF Research Database (Denmark)

    Frere, Ariane; Hillewaert, Koen; Sarlak, Hamid;

    2015-01-01

    The aerodynamic performance characteristic of airfoils are the main input for estimating wind turbine blade loading as well as annual energy production of wind farms. For transitional flow regimes these data are difficult to obtain, both experimentally as well as numerically, due to the very high...

  2. Experimental and numerical study of a complex cross-junction microchannel

    Science.gov (United States)

    Nowak, Emilia; Simmons, Mark; Kahouadji, Lyes; Craster, Richard; Matar, Omar; Juric, Damir; Chergui, Jalel; Shin, Seungwon

    2016-11-01

    Microfluidic devices occur in various fields such as inkjet printing, DNA chips, lab-on-a-chip technology, micro-propulsion and droplet-based microfluidics. Here, we examine drop and plug formation of immiscible liquids in a cross-shaped microchannel via high-speed imaging, shadowgraphy and PIV that allows interface topology and flow field tracking. We also present comparisons with direct numerical simulations using the new solver, BLUE, for massively parallel simulations of fully three-dimensional multiphase flows in complex solid geometries. EPSRC UK Programme Grant MEMPHIS (EP/K003976/1).

  3. Experimental studies on pressure drop characteristics of cryogenic cross-counter flow coiled finned tube heat exchangers

    Science.gov (United States)

    Gupta, Prabhat Kumar; Kush, P. K.; Tiwari, Ashesh

    2010-04-01

    Cross-counter flow coiled finned tube heat exchangers used in medium capacity helium liquefiers/refrigerators were developed in our lab. These heat exchangers were developed using integrated low finned tubes. Experimental studies have been performed to know the pressure drop characteristics of tube side and shell side flow of these heat exchangers. All experiments were performed at room temperature in the Reynolds number range of 3000-30,000 for tube side and 25-155 for shell side. The results of present experiments indicate that available correlations for tube side can not be used for prediction of tube side pressure drop data due to complex surface formation at inner side of tube during formation of fins over the outer surface. Results also indicate that surface roughness effect becomes more pronounced as the value of di/ D m increases. New correlations based on present experimental data are proposed for predicting the friction factors for tube side and shell side.

  4. Experimental High Energy Physics Brandeis University Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Blocker, Craig A. [Brandeis University; Bensinger, James [Brandeis University; Sciolla, Gabriella [Brandeis University; Wellenstein, Hermann [Brandeis University

    2013-07-26

    During the past three years, the Brandeis experimental particle physics group was comprised of four faculty (Bensinger, Blocker, Sciolla, and Wellenstein), one research scientist, one post doc, and ten graduate students. The group focused on the ATLAS experiment at LHC. In 2011, the LHC delivered 5/fb of pp colliding beam data at a center-of-mass energy of 7 TeV. In 2012, the center-of-mass energy was increased to 8 TeV, and 20/fb were delivered. The Brandeis group focused on two aspects of the ATLAS experiment -- the muon detection system and physics analysis. Since data taking began at the LHC in 2009, our group actively worked on ATLAS physics analysis, with an emphasis on exploiting the new energy regime of the LHC to search for indications of physics beyond the Standard Model. The topics investigated were Z' -> ll, Higgs -> ZZ* -. 4l, lepton flavor violation, muon compositeness, left-right symmetric theories, and a search for Higgs -> ee. The Brandeis group has for many years been a leader in the endcap muon system, making important contributions to every aspect of its design and production. During the past three years, the group continued to work on commissioning the muon detector and alignment system, development of alignment software, and installation of remaining chambers.

  5. Cross-comparison of three electromyogram decomposition algorithms assessed with experimental and simulated data.

    Science.gov (United States)

    Dai, Chenyun; Li, Yejin; Christie, Anita; Bonato, Paolo; McGill, Kevin C; Clancy, Edward A

    2015-01-01

    The reliability of clinical and scientific information provided by algorithms that automatically decompose the electromyogram (EMG) depends on the algorithms' accuracies. We used experimental and simulated data to assess the agreement and accuracy of three publicly available decomposition algorithms-EMGlab (McGill , 2005) (single channel data only), Fuzzy Expert (Erim and Lim, 2008) and Montreal (Florestal , 2009). Data consisted of quadrifilar needle EMGs from the tibialis anterior of 12 subjects at 10%, 20% and 50% maximum voluntary contraction (MVC); single channel needle EMGs from the biceps brachii of 10 controls and 10 patients during contractions just above threshold; and matched simulated data. Performance was assessed via agreement between pairs of algorithms for experimental data and accuracy with respect to the known decomposition for simulated data. For the quadrifilar experimental data, median agreements between the Montreal and Fuzzy Expert algorithms at 10%, 20%, and 50% MVC were 95%, 86%, and 64%, respectively. For the single channel control and patient data, median agreements between the three algorithm pairs were statistically similar at ∼ 97% and ∼ 92%, respectively. Accuracy on the simulated data exceeded this performance. Agreement/accuracy was strongly related to the Decomposability Index (Florestal , 2009). When agreement was high between algorithm pairs applied to simulated data, so was accuracy.

  6. Preoperational test report, cross-site transfer water flush system (POTP-001)

    Energy Technology Data Exchange (ETDEWEB)

    Parsons, G.L.

    1998-02-20

    This report documents the results of the testing performed per POTP-001, for the Cross-Site Transfer Water Flush System. (HNF-1552, Rev. 0) The Flush System consists of a 47,000 gallon tank (302C), a 20 hp pump, two 498kW heaters, a caustic addition pump, various valves, instruments, and piping. The purpose of this system is to provide flush water at 140 F, 140gpm, and pH 11-12 for the Cross-Site Transfer System operation.

  7. [Research in theoretical and experimental elementary particle physics. Final report

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-11-01

    This report gives summaries of particle physics research conducted by different group members for Task A. A summary of work on the CLEO experiment and detector is included for Task B along with a list of CLEO publications. During the present grant period for Task C, the authors had responsibility for the design, assembly, and programming of the high-resolution spectrometer which looks for narrow peaks in the output of the cavity in the LLNL experiment. They successfully carried out this task. Velocity peaks are expected in the spectrum of dark matter axions on Earth. The computing proposal (Task S) is submitted in support of the High Energy Experiment (CLEO, Fermilab, CMS) and the Theory tasks.

  8. Methods of Experimental Investigation of Cavitation in a Convergent - Divergent Nozzle of Rectangular Cross Section

    Science.gov (United States)

    Jablonská, Jana; Kozubková, Milada; Himr, Daniel; Weisz, Michal

    2016-08-01

    Cavitation is a phenomenon with both positive and negative effects and with dynamic manifestations in hydraulic, food, chemical and other machinery. This article deals with the detection and dynamic behavior of cavitation clouds in water flows through a rectangular cross-section convergent-divergent nozzle. Cavitation was measured by methods applicable in engineering practice. Pressure, flow rate, noise, vibration, and amount of air dissolved in the liquid were measured and cavitation region was recorded with a high-speed camera. Evaluation of acquired images in connection with measured pressure pulsations and mechanical vibrations was performed with the use of the FFT method. In certain cases, dimensionless parameters were used to generalize the measurements. The results will be used to specify multiphase mathematical cavitation model parameters.

  9. Experimental analysis of bidirectional reflectance distribution function cross section conversion term in direction cosine space.

    Science.gov (United States)

    Butler, Samuel D; Nauyoks, Stephen E; Marciniak, Michael A

    2015-06-01

    Of the many classes of bidirectional reflectance distribution function (BRDF) models, two popular classes of models are the microfacet model and the linear systems diffraction model. The microfacet model has the benefit of speed and simplicity, as it uses geometric optics approximations, while linear systems theory uses a diffraction approach to compute the BRDF, at the expense of greater computational complexity. In this Letter, nongrazing BRDF measurements of rough and polished surface-reflecting materials at multiple incident angles are scaled by the microfacet cross section conversion term, but in the linear systems direction cosine space, resulting in great alignment of BRDF data at various incident angles in this space. This results in a predictive BRDF model for surface-reflecting materials at nongrazing angles, while avoiding some of the computational complexities in the linear systems diffraction model.

  10. Experimental investigation of barium spectra in crossed electric and magnetic fields

    Institute of Scientific and Technical Information of China (English)

    Quan Wei; Liu Hong-Ping; Shen Li; Zhan Ming-Sheng

    2007-01-01

    This paper has studied the barium spectra in external magnetic and electric fields on the recently-built system based on a super-conducting solenoid with high stability of better than 1 Gauss. Firstly, we compared the spectra in a high pure magnetic field of B = 4.00000T for different polarized laser, σ+ and σ-. We prove that after a proper shift,the σ+ and σ- spectra are completely identical. We also investigated the dependence of the spectral feature in the high magnetic field on an additionally applied crossing electric field. Along with the increase of the electric field, there is an energy shift for every spectral line. Based on a transformative Hamiltonian, we explained this energy shift well.

  11. Experimental Study of the Convergence of Two-Point Cross-Correlation Toward the Green's Function

    Science.gov (United States)

    Gouedard, P.; Roux, P.; Campillo, M.; Verdel, A.; Campman, X.

    2007-12-01

    It has been shown theoretically by several authors that cross-correlation of the seismic motion recorded at two points could yield the Green's Function (GF) between these points. Convergence of cross-correlations toward the GF depends on sources positions and/or the nature of the wavefield. Direct waves from an even distribution of sources can be used to retrieve the GF. On the other hand, in an inhomogeneous medium, recording the diffuse field (coda) is theoretically sufficient to retrieve the GF whatever the sources distribution is. Since none of these two conditions (even distribution of sources or a perfectly diffuse field) is satisfied in practice, the question of convergence toward the GF has to be investigated with real data. A 3D exploration survey with sources and receivers on a dense grid offers such an opportunity. We used a high- resolution survey recorded by Petroleum Development Oman in North Oman. The data have been obtained in a 1x1~km area covered with 1600 geophones located on a 25x25~m-cell grid. Records are 4-seconds long. A unique feature of this survey is that vibrators (working in the [8-120~Hz] frequency band), were located on a similar grid shifted with respect to the receiver grid by half a cell (12.5~m) in both directions. This allows us to compare estimated GF's with measured direct waves (GF's) between the geophones. The shallow subsurface is highly heterogeneous and records include seismic coda. From this dataset, we selected two receiver locations (Ra and Rb) distant from d=158~m. We used both different sets of source locations and time windows to compute the cross-correlation between these two receivers. Then we compared the derivatives of correlation functions with the actual GF measured in Rb (resp.~Ra) for a source close to Ra (resp.~Rb). By doing so, we show the actual influence of source locations and scattering (governed by the records' selected time window) on the Signal-to-Noise Ratio (SNR) of the reconstructed GF. When using

  12. Chemical reporter for visualizing metabolic cross-talk between carbohydrate metabolism and protein modification.

    Science.gov (United States)

    Zaro, Balyn W; Chuh, Kelly N; Pratt, Matthew R

    2014-09-19

    Metabolic chemical reporters have been largely used to study posttranslational modifications. Generally, it was assumed that these reporters entered one biosynthetic pathway, resulting in labeling of one type of modification. However, because they are metabolized by cells before their addition onto proteins, metabolic chemical reporters potentially provide a unique opportunity to read-out on both modifications of interest and cellular metabolism. We report here the development of a metabolic chemical reporter 1-deoxy-N-pentynyl glucosamine (1-deoxy-GlcNAlk). This small-molecule cannot be incorporated into glycans; however, treatment of mammalian cells results in labeling of a variety proteins and enables their visualization and identification. Competition of this labeling with sodium acetate and an acetyltransferase inhibitor suggests that 1-deoxy-GlcNAlk can enter the protein acetylation pathway. These results demonstrate that metabolic chemical reporters have the potential to isolate and potentially discover cross-talk between metabolic pathways in living cells.

  13. Experimental spectral analysis of SALMON/STERLING decoupling. Technical report

    Energy Technology Data Exchange (ETDEWEB)

    Blandford, R.R.; Woolson, J.R.

    1979-11-30

    Re-analysis of SALMON and STERLING initial short-period compressional and surface waves at station PLMS (Poplarville, Mississippi) at a distance of 27 km shows a SALMON/STERLING compressional phase spectral ratio tending to a ratio of only 17 at 25 Hz in agreement with the theoretical caculations of Patterson (1966) and of Healy, King, and 0'Neill (1971). The spectral ratio for the surface waves tends to a ratio of approximately 100 at 25 Hz, in agreement with spectral ratios previously reported by Springer, Denny, Healy, and Mickey (1968), whose data window at PLMS was large enough to consist predominantly of surface waves. The fact that the ratio varies as a function of phase suggests that decoupling varies as a function of takeoff angle, with the least decoupling occurring at high frequencies for the most steeply departing rays. Another topic discussed is the apparent variation in decoupling as defined by the ratio of STERLING/STERLING HE. The variation in this ratio is determined to be explainable by the variation in short point between these two explosions, and not necessarily by a variation in decoupling as a function of azimuth.

  14. Cytogenetic and morphologic approaches of hybrids from experimental crosses between Triatoma lenti Sherlock & Serafim, 1967 and T. sherlocki Papa et al., 2002 (Hemiptera: Reduviidae).

    Science.gov (United States)

    Mendonça, Vagner José; Alevi, Kaio Cesar Chaboli; Medeiros, Lívia Maria de Oliveira; Nascimento, Juliana Damieli; de Azeredo-Oliveira, Maria Tercília Vilela; da Rosa, João Aristeu

    2014-08-01

    The reproductive capacity between Triatoma lenti and Triatoma sherlocki was observed in order to verify the fertility and viability of the offspring. Cytogenetic, morphological and morphometric approaches were used to analyze the differences that were inherited. Experimental crosses were performed in both directions. The fertility rate of the eggs in crosses involving T. sherlocki females was 65% and 90% in F1 and F2 offspring, respectively. In reciprocal crosses, it was 7% and 25% in F1 and F2 offspring, respectively. The cytogenetic analyses of the male meiotic process of the hybrids were performed using lacto-acetic orcein, C-banding and Feulgen techniques. The male F1 offspring presented normal chromosome behavior, a finding that was similar to those reported in parental species. However, cytogenetic analysis of F2 offspring showed errors in chromosome pairing. This post-zygotic isolation, which prevents hybrids in nature, may represent the collapse of the hybrid. This phenomenon is due to a genetic dysregulation that occurs in the chromosomes of F1. The results were similar in the hybrids from both crosses. Morphological features, such as color and size of connexive and the presence of red-orange rings on the femora, were similar to T. sherlocki, while wins size was similar to T. lenti in F1 offspring. The eggshells showed characteristics that were similar to species of origin, whereas the median process of the pygophore resulted in intermediate characteristics in the F1 and a segregating pattern in F2 offspring. Geometric morphometric techniques used on the wings showed that both F1 and F2 offspring were similar to T. lenti. These studies on the reproductive capacity between T. lenti and T. sherlocki confirm that both species are evolutionarily closed; hence, they are included in the brasiliensis subcomplex. The extremely reduced fertility observed in the F2 hybrids confirmed the specific status of the species that were analyzed.

  15. Experimental determination of proton induced reaction cross sections on {sup nat}Ni near threshold energy

    Energy Technology Data Exchange (ETDEWEB)

    Uddin, Md. Shuza [Atomic Energy Research Establishment, Dhaka (Bangladesh). Tandem Accelerator Facilities; Forschungszentrum Juelich GmbH (Germany). Inst. fuer Neurowissenschaften und Medizin, INM-5: Nuklearchemie; Chakraborty, Animesh Kumer [Atomic Energy Research Establishment, Dhaka (Bangladesh). Tandem Accelerator Facilities; Chittagong University of Engineering and Technology (Bangladesh). Dept. of Physics; Spellerberg, Stefan; Spahn, Ingo; Qaim, Syed M. [Forschungszentrum Juelich GmbH (Germany). Inst. fuer Neurowissenschaften und Medizin, INM-5: Nuklearchemie; Shariff, Md. Asad; Das, Sopan [Atomic Energy Research Establishment, Dhaka (Bangladesh). Tandem Accelerator Facilities; Rashid, Md. Abdur [Chittagong University of Engineering and Technology (Bangladesh). Dept. of Physics

    2016-08-01

    A newly developed facility at the 3 MV Tandem Accelerator at Dhaka for measurement of proton induced reaction cross sections in the energy region below 5 MeV is outlined and tests for the beam characterization are described. The results were validated by comparison with the well-known excitation function of the {sup 64}Ni(p, n){sup 64}Cu reaction. Excitation functions of the reactions {sup nat}Ni(p, x){sup 60,61}Cu, {sup nat}Ni(p, x){sup 55,57,58m+g}Co and {sup nat}Ni(p, x){sup 57}Ni were also measured from threshold to 16 MeV using the stacked-foil technique, whereby irradiations were performed with 5 MeV protons available at the Tandem Accelerator and 16.7 MeV protons at the BC 1710 cyclotron at Juelich, Germany. The radioactivity was measured using HPGe γ-ray detectors. A few results are new, the others strengthen the database. In particular, the results of the reaction {sup nat}Ni(p, x){sup 61}Cu below 3 MeV could serve as beam monitor.

  16. EXPERIMENTAL INVESTIGATION INTO HOT WATER SLOT JETS WITH NEGATIVELY BUOYANCY IN CROSS FLOW

    Institute of Scientific and Technical Information of China (English)

    YANG Zhong-hua; HUAI Wen-xin; DAI Hui-chao

    2005-01-01

    An experiment was conducted to examine the near-field behavior of negatively buoyant planar jets in flowing environment. Hot water jet was projected downwards at different angles from a slot into a uniform cross flow. Micro Acoustic Doppler Velocimeter (Micro ADV) system is used to measure the velocity and turbulent fluxes of Reynolds stresses. The whole field temperatures were measured with fast response thermocouples. Pure jets experiments were made also to study the effect of buoyancy in negatively buoyant jets. It is found that the influenced area of hot jets is larger than which of pure jets when the jet angle is 90° and the influenced area of hot jets is smaller than which of pure jets when the jet angle is 45°. The difference is not obvious at 60° angle jets. This means that the rising of temperature has effect not only on negatively buoyancy, but also on the intensity of turbulence. The contrast of these two influences dominates the trend of jet flow.

  17. Experimental study for the application of water barriers to Spanish small cross section galleries

    Directory of Open Access Journals (Sweden)

    Ljiljana Medic-Pejic

    2015-01-01

    Full Text Available El objetivo de este trabajo es la implementación de barreras pa sivas de agua para la puesta e n práctica de la norma EN145912 : 2007, así como una actualización del estudi o continuo de las barreras de agua pasivas. Se analizó la viabilidad de las barreras de agua en las galerías típicas españoles de pequeña sección transversal y se realizaro n pruebas a gran escala en la mina experimental "Bárbara" en Po lonia. Se presentan sugerencias para la co rrecta aplicaci ón de las normas en España.

  18. Cross-Validation of Numerical and Experimental Studies of Transitional Airfoil Performance

    DEFF Research Database (Denmark)

    Frere, Ariane; Hillewaert, Koen; Sarlak, Hamid

    2015-01-01

    The aerodynamic performance characteristic of airfoils are the main input for estimating wind turbine blade loading as well as annual energy production of wind farms. For transitional flow regimes these data are difficult to obtain, both experimentally as well as numerically, due to the very high...... sensitivity of the flow to perturbations, large scale separation and performance hysteresis. The objective of this work is to improve the understanding of the transitional airfoil flow performance by studying the S826 NREL airfoil at low Reynolds numbers (Re = 4:104 and 1:105) with two inherently different...... CFD methodologies, in com- bination with wind tunnel experiments. Large-Eddy Simulations (LES) performed with a novel high order code based on the Discontinuous Galerkin Method are compared to LES from the well established wind turbine CFD code EllipSys3D. Both codes are considering natural transition...

  19. CrossRef Experimental verification of the HERD prototype at CERN SPS

    CERN Document Server

    Dong, Yongwei; Wang, Junjing; Xu, Ming; Albergo, Sebastiano; Ambroglini, Filippo; Ambrosi, Giovanni; Azzarello, Philipp; Bai, Yonglin; Bao, Tianwei; Baldini, Luca; Battiston, Roberto; Bernardini, Paolo; Chen, Zhen; D'Alessandro, Raffaello; Duranti, Matteo; D'Urso, Domenico; Fusco, Piergiorgio; Gao, Jiarui; Gao, Xiaohui; Gargano, Fabio; Giglietto, Nicola; Hu, Bingliang; Li, Ran; Li, Yong; Liu, Xin; Loparco, Francesco; Lu, Junguang; Marsella, Giovanni; Mazziotta, Mario N; De Mitri, Ivan; Mori, Nicola; Orsi, Silvio; Oscar, Adriani; Pearce, Mark; Pohl, Martin; Ryde, Felix; Shi, Dalian; Spillantini, Piero; Su, Meng; Sun, Xin; Surdo, Antonio; Walter, Roland; Wang, Bo; Wang, Le; Wang, Ruijie; Wang, Zhigang; Wu, Bobing; Wu, Xin; Yan, Peng; Zhang, Li; Zhang, Shuangnan

    2016-01-01

    The High Energy cosmic-Radiation Detection (HERD) facility is one of several space astronomy payloads of the cosmic light house program onboard China's Space Station, which is planned for operation starting around 2020 for about 10 years. Beam test with a HERD prototype, to verify the HERD specifications and the reading out method of wavelength shifting fiber and image intensified CCD, was taken at CERN SPS in November, 2015. The prototype is composed of an array of 5*5*10 LYSO crystals, which is 1/40th of the scale of HERD calorimeter. Experimental results on the performances of the calorimeter are discussed. © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

  20. Puerto Rico Experimental Model Dental Auxiliary Training Program. The Comprehensive Report, Exhibits A to F.

    Science.gov (United States)

    Puerto Rico Univ., San Juan. School of Dentistry.

    This annex supplements the Puerto Rico Experimental Model Dental Training Program Comprehensive Report (CE 028 213) and is comprised of exhibits A through F. Among the information included in the exhibits is the experimental model schedule, the schematic representation, the content display, and the course outlines for all courses in the program.…

  1. 75 FR 3463 - Cross-Media Electronic Reporting Rule State Authorized Program Revision Approval: State of North...

    Science.gov (United States)

    2010-01-21

    ... From the Federal Register Online via the Government Publishing Office ENVIRONMENTAL PROTECTION AGENCY Cross-Media Electronic Reporting Rule State Authorized Program Revision Approval: State of North...'s approval, under regulations for Cross-Media Electronic Reporting, of the State of North Carolina's...

  2. 75 FR 1617 - Cross-Media Electronic Reporting Rule State Authorized Program Revision Approval: State of New York

    Science.gov (United States)

    2010-01-12

    ... From the Federal Register Online via the Government Publishing Office ] ENVIRONMENTAL PROTECTION AGENCY Cross-Media Electronic Reporting Rule State Authorized Program Revision Approval: State of New...'s approval, under regulations for Cross-Media Electronic Reporting, of the State of New York's...

  3. 75 FR 65627 - Cross-Media Electronic Reporting Rule State Authorized Program Revision Approval: State of Arkansas

    Science.gov (United States)

    2010-10-26

    ... From the Federal Register Online via the Government Publishing Office ENVIRONMENTAL PROTECTION AGENCY Cross-Media Electronic Reporting Rule State Authorized Program Revision Approval: State of...'s approval, under regulations for Cross-Media Electronic Reporting, of the State of Arkansas's...

  4. Nuclear Physics Division, Institute of Experimental Physics, Warsaw University annual report 1997

    Energy Technology Data Exchange (ETDEWEB)

    Szeflinski, Z.; Kirejczyk, M.; Popkiewicz, M. [eds.

    1998-08-01

    In the presented report the research activities of Nuclear Physics Division (NPD) of the Institute of Experimental Physics (Warsaw University) in year 1997 are described. The report is divided into three parts: Reaction Mechanisms and Nuclear Structure, Experimental Methods and Instrumentation and the third one contain the lists of personnel, seminars held at the Nuclear Physics Division and published papers. A summary of the (NPD) activities are briefly presented in ``Preface`` written by NDP director prof. K. Siwek-Wilczynska

  5. Nuclear Physics Division, Institute of Experimental Physics, Warsaw University Annual Report 1996

    Energy Technology Data Exchange (ETDEWEB)

    Szeflinski, Z.; Popkiewicz, M. [eds.

    1997-12-31

    In the presented report the research activities of Nuclear Physics Division (NPD) of the Institute of Experimental Physics (Warsaw University) in year 1996 are described. The report is divided into three parts: Reaction mechanisms and nuclear structure; Experimental methods and instrumentation and the third part contains the list of personnel, seminars held at the Nuclear Physics Division and published papers. A summary of the (NPD) activities are briefly presented in ``Preface`` by NPD director prof. Ch. Droste.

  6. Nuclear Physics Division - Inst. of Experimental Physics - Warsaw University - Annual Report 1998

    Energy Technology Data Exchange (ETDEWEB)

    Kirejczyk, M.; Szeflinski, Z. [eds.

    1999-08-01

    In the presented report the research activities of Nuclear Physics Division (NPD) of the Warsaw University Institute of Experimental Physics in year of 1998 are described. The report is divided into three parts: Reaction Mechanisms and Nuclear Structure, Experimental Methods and Instrumentation and the third one contains the lists of personnel, seminars held at the Nuclear Physics Division and list of published papers. A summary of the (NPD) activities are briefly presented in ``Preface`` written by NDP director prof. K. Siwek-Wilczynska

  7. Cross-informant agreement between parent-reported and adolescent self-reported problems in 25 societies

    DEFF Research Database (Denmark)

    Rescorla, Leslie A; Ginzburg, Sofia; Achenbach, Thomas M

    2013-01-01

    methods to test cross-informant agreement for ratings obtained from 27,861 adolescents ages 11 to 18 and their parents. Youth Self-Report (YSR) mean scores were significantly higher than Child Behavior Checklist (CBCL) mean scores for all problem scales in almost all societies, but the magnitude...... of the YSR-CBCL discrepancy varied across societies. Cross-informant correlations for problem scale scores varied more across societies than across types of problems. Across societies, parents and adolescents tended to rate the same items as low, medium, or high, but within-dyad parent-adolescent item......) How well do parents and adolescents in different societies agree on problem item ratings? (d) How much do parent-adolescent dyads within each society vary in agreement on item ratings? (e) How well do parent-adolescent dyads within each society agree on the adolescent's deviance status? We used five...

  8. EXPERIMENTAL VALIDATION OF A MODEL FOR PHOTOVOLTAIC ARRAYS IN TOTAL CROSS-TIED CONFIGURATION

    Directory of Open Access Journals (Sweden)

    CARLOS ANDRÉS RAMOS-PAJA

    2013-01-01

    Full Text Available Este artículo presenta un análisis extendido y la validación experimental de un modelo matemático, basado en el concepto de puntos de inflexión, para arreglos fotovoltaicos en matriz interconectada. El modelo reproduce las características eléctricas de plantas fotovoltaicas reales en condiciones uniformes y no-uniformes (e.g. sombreado parcial. El modelo calcula los voltajes del arreglo en los cuales se activan los diodos de bypass, lo que permite detectar si un módulo fotovoltaico está activo o inactivo para decidir si se considera o desprecia su contribución a la corriente y potencia del arreglo. Este procedimiento genera una reducción significativa en la carga computacional requerida en comparación con soluciones clásicas. Los experimentos reportados en este artículo confirman las ventajas de modelo: baja carga computacional, alta exactitud en la reproducción de datos experimentales, y su utilidad en las evaluaciones energéticas de arreglos fotovoltaicos orientadas al análisis de viabilidad.

  9. FY07 LDRD Final Report Neutron Capture Cross-Section Measurements at DANCE

    Energy Technology Data Exchange (ETDEWEB)

    Parker, W; Agvaanluvsan, U; Wilk, P; Becker, J; Wang, T

    2008-02-08

    We have measured neutron capture cross sections intended to address defense science problems including mix and the Quantification of Margins and Uncertainties (QMU), and provide details about statistical decay of excited nuclei. A major part of this project included developing the ability to produce radioactive targets. The cross-section measurements were made using the white neutron source at the Los Alamos Neutron Science Center, the detector array called DANCE (The Detector for Advanced Neutron Capture Experiments) and targets important for astrophysics and stockpile stewardship. DANCE is at the leading edge of neutron capture physics and represents a major leap forward in capability. The detector array was recently built with LDRD money. Our measurements are a significant part of the early results from the new experimental DANCE facility. Neutron capture reactions are important for basic nuclear science, including astrophysics and the statistics of the {gamma}-ray cascades, and for applied science, including stockpile science and technology. We were most interested in neutron capture with neutron energies in the range between 1 eV and a few hundred keV, with targets important to basic science, and the s-process in particular. Of particular interest were neutron capture cross-section measurements of rare isotopes, especially radioactive isotopes. A strong collaboration between universities and Los Alamos due to the Academic Alliance was in place at the start of our project. Our project gave Livermore leverage in focusing on Livermore interests. The Lawrence Livermore Laboratory did not have a resident expert in cross-section measurements; this project allowed us to develop this expertise. For many radionuclides, the cross sections for destruction, especially (n,{gamma}), are not well known, and there is no adequate model that describes neutron capture. The modeling problem is significant because, at low energies where capture reactions are important, the neutron

  10. Weaknesses in the reporting of cross-sectional studies according to the STROBE statement

    Science.gov (United States)

    Malaga, German; Miranda, Jaime

    2015-01-01

    Introduction: The inadequate reporting of cross-sectional studies, as in the case of the prevalence of metabolic syndrome, could cause problems in the synthesis of new evidence and lead to errors in the formulation of public policies. Objective: To evaluate the reporting quality of the articles regarding metabolic syndrome prevalence in Peruvian adults using the STROBE recommendations. Methods: We conducted a thorough literature search with the terms "Metabolic Syndrome", "Sindrome Metabolico" and "Peru" in MEDLINE/PubMed, LILACS, SciELO, LIPECS and BVS-Peru until December 2014. We selected those who were population-based observational studies with randomized sampling that reported prevalence of metabolic syndrome in adults aged 18 or more of both sexes. Information was analysed through the STROBE score per item and recommendation. Results: Seventeen articles were included in this study. All articles met the recommendations related to the report of the study's rationale, design, and provision of summary measures. The recommendations with the lowest scores were those related to the sensitivity analysis (8%, n= 1/17), participant flowchart (18%, n= 3/17), missing data analysis (24%, n= 4/17), and number of participants in each study phase (24%, n= 4/17). Conclusion: Cross-sectional studies regarding the prevalence of metabolic syndrome in peruvian adults have an inadequate reporting on the methods and results sections. We identified a clear need to improve the quality of such studies. PMID:26848197

  11. Experimental cross-sections for proton induced nuclear reactions on mercury up to 65 MeV

    Science.gov (United States)

    Hermanne, A.; Tárkányi, F.; Takács, S.; Ditrói, F.; Szücs, Z.; Brezovcsik, K.

    2016-07-01

    Cross-sections for formation of activation products induced by protons on natural mercury targets were measured. Results for 196m,196g,197g(cum), 198m,198g,199g(cum), 200g(cum), 201,202Tl, 194g(cum), 195g(cum), 196g(cum), 198m,199g(cum) Au and 195m,197m,203Hg are presented up to 65 MeV incident particle energy, many of these for the first time. The experimental data are compared with literature values and with the predictions of the TALYS 1.6 code (results taken from TENDL-2015 on-line library), thick target yields were derived and possible applications in biomedical sciences are discussed.

  12. Puerto Rico Experimental Model Dental Auxiliary Training Program. The Comprehensive Report, Exhibits G to L.

    Science.gov (United States)

    Puerto Rico Univ., San Juan. School of Dentistry.

    This annex supplements the Puerto Rico Experimental Model Dental Training Program Comprehensive Report (CE 028 213) and is comprised of exhibits G through L. Among the information included in the exhibits is the evaluation reports of the commission on accreditation, the detailed curriculum, and the accredited program's scope, sequence, and course…

  13. Nuclear Physics Division Institute of Experimental Physics Warsaw University annual report 1994

    Energy Technology Data Exchange (ETDEWEB)

    Osuch, S. [ed.

    1995-12-31

    In the presented Annual Report the activities of the Nuclear Physics Division of the Institute of Experimental Physics of the Warsaw University in 1994 are described. The report consist of three sections: (i) Reaction Mechanism and Nuclear Structure (12 articles); (ii) Experimental Methods and Instrumentation (2 articles); (iii) Other Research (1 article). Additionally the list of seminars held at the NPD, personnel list and list of published papers is also given. In the first, leading article of the report written by head of NPD prof. Ch. Droste the general description of the Department activity is presented.

  14. Experimental study on cross-flow induced vibrations in heat exchanger tube bundle

    Science.gov (United States)

    Khushnood, Shahab; Nizam, Luqman Ahmad

    2017-03-01

    Vibration in heat exchangers is one of the main problems that the industry has faced over last few decades. Vibration phenomenon in heat exchangers is of major concern for designers and process engineers since it can lead to the tube damage, tube leakage, baffle damage, tube collision damage, fatigue, creep etc. In the present study, vibration response is analyzed on single tube located in the centre of the tube bundle having parallel triangular arrangement (60°) with P/ D ratio of 1.44. The experiment is performed for two different flow conditions. This kind of experiment has not been reported in the literature. Under the first condition, the tube vibration response is analyzed when there is no internal flow in the tube and under the second condition, the response is analyzed when the internal tube flow is maintained at a constant value of 0.1 m/s. The free stream shell side velocity ranges from 0.8 m/s to 1.3 m/s, the reduced gap velocity varies from 1.80 to 2.66 and the Reynolds number varies from 44500 to 66000. It is observed that the internal tube flow results in larger vibration amplitudes for the tube than that without internal tube flow. It is also established that over the current range of shell side flow velocity, the turbulence is the dominant excitation mechanism for producing vibration in the tube since the amplitude varies directly with the increase in the shell side velocity. Damping has no significant effect on the vibration behavior of the tube for the current velocity range.

  15. Measurement and Basic Physics Committee of the U.S. Cross-Section Evaluation Working Group annual report 1997

    Energy Technology Data Exchange (ETDEWEB)

    Smith, D.L. [ed.] [comp.] [Argonne National Lab., IL (United States); McLane, V. [ed.] [comp.] [Brookhaven National Lab., Upton, NY (United States)

    1997-10-01

    The Cross-Section Evaluation Working Group (CSEWG) is a long-standing committee charged with responsibility for organizing and overseeing the US cross-section evaluation effort. It`s main product is the official US evaluated nuclear data file, ENDF. In 1992 CSEWG added the Measurements Committee to its list of standing committees and subcommittees. This action was based on a recognition of the importance of experimental data in the evaluation process as well as the realization that measurement activities in the US were declining at an alarming rate and needed considerable encouragement to avoid the loss of this resource. The mission of the Committee is to maintain contact with experimentalists in the Us and to encourage them to contribute to the national nuclear data effort. Improved communication and the facilitation of collaborative activities are among the tools employed in achieving this objective. In 1994 the Committee was given an additional mission, namely, to serve as an interface between the applied interests represented in CSEWG and the basic nuclear science community. Accordingly, its name was changed to the Measurement and Basic Physics Committee. The present annual report is the third such document issued by the Committee. It contains voluntary contributions from several laboratories in the US. Their contributions were submitted to the Chairman for compilation and editing.

  16. Car Accident Due to Horse Crossing the Motorway: Two Case Reports

    Directory of Open Access Journals (Sweden)

    Serbülent Kılıç

    2017-06-01

    Full Text Available Basic Commercial Court in Ankara wanted a report from our department of forensic medicine about two injury cases due to animal vehicle collision. The reports should include the disability rate and the duration of unfunctionality. After the examination we prepared the reports. Both vehicle collisions happened due to free ranging horse crossing the motorway. Both cases had different types of injury due to trauma. Vehicle collision due to horse crossing the motorway is rarely met in Turkey. Our first case is a man that had upper extremity and facial injury. He uses prothesis due to ear amputation. He has a scar tissue on the right side of his face and left forearm. The other case is three-years-old boy that had cranial bone fracture and cranial hematoma. He has also hemiparesis of the right side of body. Both cases have neurologic sequels but they have no psychiatric sequels.  In literature, animal vehicle collisions involve lots of animal species such as kangaroo, deer, camel and moose. Animal vehicle collision involving the horses is rarely met. Forensic medicine specialists should state the causal link between traumatic events and disabilities in order to help justice. Our aim to present the current two cases is investigation of injuries of animal related collision and makes forensic medicine specialists pay attention to the subject of preparing reports about such cases. Key words: Animal vehicle collision; death; disability; horse; injury; motorway.

  17. Experimental and Numerical Study on Heat Transfer Enhancement of a Rectangular Channel with Discontinuous Crossed Ribs and Grooves

    Institute of Scientific and Technical Information of China (English)

    唐新宜; 朱冬生

    2012-01-01

    Experimental and numerical investigations have been conducted to study turbulent flow of water and heat transfer characteristics in a rectangular channel with discontinuous crossed ribs and grooves.The tests investigated the overall heat transfer performance and friction factor in ribbed and ribbed-grooved channels with rib angle of 30°.The experimental results show that the overall thermo-hydraulic performance for ribbed-grooved channel is increased by 10%-13.6% when compared to ribbed channel.The investigation on the effects of different rib angles and rib pitches on heat transfer characteristics and friction factor in ribbed-grooved channel was carried out using Fluent with SST(shear-stress transport) k-ω turbulence model.The numerical results indicate that the case for rib angle of 45° shows the best overall thermo-hydraulic performance,about 18%-36% higher than the case for rib angle of 0°.In addition,the flow patterns and local heat transfer characteristics for ribbed and ribbed-grooved channels based on the numerical simulation were also analyzed to reveal the mechanism of heat transfer enhancement.

  18. Cutting edge: IL-23 cross-regulates IL-12 production in T cell-dependent experimental colitis.

    Science.gov (United States)

    Becker, Christoph; Dornhoff, Heike; Neufert, Clemens; Fantini, Massimo C; Wirtz, Stefan; Huebner, Sabine; Nikolaev, Alexei; Lehr, Hans-Anton; Murphy, Andrew J; Valenzuela, David M; Yancopoulos, George D; Galle, Peter R; Karow, Margaret; Neurath, Markus F

    2006-09-01

    Although IL-12 and IL-23 share the common p40 subunit, IL-23, rather than IL-12, seems to drive the pathogenesis of experimental autoimmune encephalomyelitis and arthritis, because IL-23/p19 knockout mice are protected from disease. In contrast, we describe in this study that newly created LacZ knockin mice deficient for IL-23 p19 were highly susceptible for the development of experimental T cell-mediated TNBS colitis and showed even more severe colitis than wild-type mice by endoscopic and histologic criteria. Subsequent studies revealed that dendritic cells from p19-deficient mice produce elevated levels of IL-12, and that IL-23 down-regulates IL-12 expression upon TLR ligation. Finally, in vivo blockade of IL-12 p40 in IL-23-deficient mice rescued mice from lethal colitis. Taken together, our data identify cross-regulation of IL-12 expression by IL-23 as novel key regulatory pathway during initiation of T cell dependent colitis.

  19. Acanthomatous ameloblastoma of mandible crossing the midline: a rare case report.

    Science.gov (United States)

    Bansal, Neha; Sheikh, Soheyl; Bansal, Richa; Sabharwal, Robin; Gupta, Aanchal; Goyal, Ankit; Kainth, Nitika

    2015-01-01

    Ameloblastoma is the most common aggressive benign odontogenic tumor of the jaws. Ameloblastoma is a benign epithelial odontogenic tumor that typically arises in the mandible or maxilla or, rarely, in the immediate adjacent soft tissues. A clinical, radiographic and histopathological report is presented of a case of acanthomatous ameloblastoma in relation to molar in the left mandible of a 30-year-old healthy male. The histopathological examination of the removed specimen revealed the histopathological pattern of an acanthomatous ameloblastoma. The radiographic appearance of the lesion showed the presence of multilocular radiolucencies, which were crossing the midline, which is rarely found in ameloblastoma. Due to its rarity and lack of data, we take this opportunity to present a world first case of acanthomatous ameloblastoma which was crossing the midline.

  20. Preoperational test report, cross-site transfer system integrated test (POTR-007)

    Energy Technology Data Exchange (ETDEWEB)

    Pacquet, E.A.

    1998-04-02

    This report documents the results obtained during the performance of Preoperational Test POTP-007, from December 12, 1997 to March 27, 1998. The main objectives were to demonstrate the operation of the following Cross-Site Transfer System components: Booster pumps P-3125A and P-3125B interlocks and controls, both local and remote; Booster pump P-3125A and P-3125B and associated variable speed drives VSD-1 and VSD-2 performance in both manual and automatic modes; and Water filling, circulation, venting and draining of the transfer headers (supernate and slurry line). As described in reference 1, the following components of the Cross-Site Transfer System that would normally be used during an actual waste transfer, are not used in this specific test: Water Flush System; Valving and instrumentation associated with the 241-SY-A valve pit jumpers; and Valving and instrumentation associated with the 244-A lift station.

  1. An Experimental Study of the Drag Force on a Cylinder Exposed to an Argon Thermal Plasma Cross Flow

    Institute of Scientific and Technical Information of China (English)

    XinTao; XiChen; 等

    1992-01-01

    Experimental data are presented concerning the drag force on a cylinder exposed to an argon plasma cross flow with temperatures about 104 K and velocities about 102 m/s.Using a method of sweeping a cylindrical probe across an argon plasma jet,the total drag force on the cylinder can be measured as a function of the lateral distance of cylindrical probe with respect to the plasma-jet axis.Through the Abel inversion,the drag force for per unit of cylinderlength and thus the drag coefflcient of cylinder have been measured under plasma conditions and compared with the values obtained from the standard drag curve of the cylinder in an isothermal flow.Experimental results show that the measured grag forces are always less than their counterparts read from the standard drag curve with the smae Reynolds numbers based on the oncoming plasma properties.Thew drag force on the cylinder exoposed to a thermal plasma flow is shown to be approximately proportional to the square root of cylinder diameter in the present experiment and it increases slightly proportional to the square root of cylinder diameter in the present experiment and if increases slightly with increasing surface temperature of the cylinder,.It is also shown that applying a voltage between the drag prode and the anode of the plasma jet generator has little effect on the drag force of cylinder under the experimental conditions.The drag force on a cylinder with finite length exposed to an argon plasma with the axis parallel to the plams jet is independent of ration of cylinder length to its dismeter L/d for the cases when L/d≤1.

  2. Reporting of euthanasia in medical practice in Flanders, Belgium: cross sectional analysis of reported and unreported cases

    Science.gov (United States)

    Bilsen, Johan; Cohen, Joachim; Rurup, Mette L; Mortier, Freddy; Deliens, Luc

    2010-01-01

    Objectives To estimate the rate of reporting of euthanasia cases to the Federal Control and Evaluation Committee and to compare the characteristics of reported and unreported cases of euthanasia. Design Cross sectional analysis. Setting Flanders, Belgium. Participants A stratified at random sample was drawn of people who died between 1 June 2007 and 30 November 2007. The certifying physician of each death was sent a questionnaire on end of life decision making in the death concerned. Main outcome measures The rate of euthanasia cases reported to the Federal Control and Evaluation Committee; physicians’ reasons for not reporting cases of euthanasia; the relation between reporting and non-reporting and the characteristics of the physician and patient; the time by which life was shortened according to the physician; the labelling of the end of life decision by the physician involved; and differences in characteristics of due care between reported and unreported euthanasia cases. Results The survey response rate was 58.4% (3623/6202 eligible cases). The estimated total number of cases of euthanasia in Flanders in 2007 was 1040 (95% CI 970 to 1109), thus the incidence of euthanasia was estimated as 1.9% of all deaths (95% CI 1.6% to 2.3%). Approximately half (549/1040 (52.8%, 95% CI 43.9% to 60.5%)) of all estimated cases of euthanasia were reported to the Federal Control and Evaluation Committee. Physicians who perceived their case as euthanasia reported it in 93.1% (67/72) of cases. Cases of euthanasia were reported less often when the time by which life was shortened was less than one week compared with when the perceived life shortening was greater (37.3% v 74.1%; Peuthanasia was more often absent (87.7% v 17.6% verbal request only; Peuthanasia cases is reported to the Federal Control and Evaluation Committee. Most non-reporting physicians do not perceive their act as euthanasia. Countries debating legalisation of euthanasia should simultaneously consider

  3. Dichotomising poor self-reported health status: Using secondary cross-sectional survey data for Jamaica

    Directory of Open Access Journals (Sweden)

    Paul Andrew Bourne

    2009-01-01

    Full Text Available Background: Caribbean scholars continue to dichotomise self-reported health status without empirical justification for inclusion or exclusion of moderate health status in the dichotomisation of poor health. Aims This study will 1 evaluate which cut-off point should be used for self-reported health status; 2 assess whether dichotomisation of self-reported data should be practiced; 3 ascertain any disparity in dichotomisation by some covariates (i.e., marital status, age cohort, social class; and 4 examine the odds of reporting poor or moderate-to-very poor self-reported health status if one has an illness. Materials and Methods: The current study used cross-sectional survey data for 2007. The survey used stratified probability sampling techniques to collect the data from Jamaicans. The sample consisted of 6,783 respondents, with a focus on participants aged 46+ years (n=1,583 respondents. Self-reported health status was a 5-item Likert scale question. The dichotomisation was poor health status or otherwise and poor (including moderate self-reported health. Odds ratios were calculated in order to estimate the effect of the covariates. Result: When moderate self-reported health status was used in poor health status, the cut-off revealed moderate effect on specified covariates across the age cohorts for women. However, for men, exponential effects were used on social class, but not on area of residence or marital status across the different age cohorts. Conclusions: The cut-off point in the dichotomisation of self-reported health status does not make a difference for women and must be taken into consideration in the use of self-reported health data for Jamaica.

  4. Preliminary checklist of fungi of the Fernow Experimental Forest. Forest Service general technical report (Final)

    Energy Technology Data Exchange (ETDEWEB)

    Stephenson, S.L.; Kumar, A.; Bhatt, R.; Dubey, T.; Landolt, J.C.

    1994-01-01

    The report provides a checklist of fungi found on the Fernow Experimental Forest in West Virginia during 4 years of research and collecting by the authors. More than 500 fungi in seven major taxonomic groups (Acrasiomycetes, Myxomycetes, Chytridiomycetes, Oomycetes, Ascomycetes, Deuteromycetes, and Basidiomycetes) are listed alphabetically by genus and species. Also provided is a general description of the forest vegetation of the Fernow Experimental Forest.

  5. Flora of the Fraser Experimental Forest, Colorado. Forest Service general technical report (Final)

    Energy Technology Data Exchange (ETDEWEB)

    Popovich, S.J.; Shepperd, W.D.; Reichert, D.W.; Cone, M.A.

    1993-08-01

    The report lists 441 vascular plant taxa in 228 genera and 63 families encountered on the 9,300-ha Fraser Experimental Forest in central Colorado. Synonyms appearing in previous publications and other works pertaining to the Fraser Experimental Forest, as well as appropriate Colorado floras and less-technical field guides, are included. Plant communities and habitats are discussed, and a list of 54 lichens is also presented. A glossary of related terms is included.

  6. Acute corneal hydrops during pregnancy with spontaneous resolution after corneal cross-linking for keratoconus: a case report.

    Science.gov (United States)

    Stock, Ricardo Alexandre; Thumé, Thaís; Bonamigo, Elcio Luiz

    2017-02-25

    Keratoconus may progress to acute corneal hydrops even after cross-linking. In some cases, keratoconus progresses during pregnancy. In this report, we present a case of a patient with increased anterior stromal resistance after cross-linking that would favor nonprogression of keratoconus during pregnancy. We report that cross-linking is likely to have had a protective effect in a white pregnant patient with acute corneal hydrops who showed rapid improvement, as documented by corneal topography. Improvement occurred within 8 days, whereas up to 250 days are reported in the literature. No keratoconus progression occurred in the 20-month follow-up period. Cross-linking failed to prevent the occurrence of acute corneal hydrops after rupture of Descemet's membrane but most likely helped to accelerate the resolution of the condition. Corneal hardening resulting from cross-linking may have also contributed to stabilizing keratoconus during pregnancy.

  7. Experimenter Effects on Pain Reporting in Women Vary across the Menstrual Cycle

    Directory of Open Access Journals (Sweden)

    Jacob M. Vigil

    2015-01-01

    Full Text Available Background. Separate lines of research have shown that menstrual cycling and contextual factors such as the gender of research personnel influence experimental pain reporting. Objectives. This study examines how brief, procedural interactions with female and male experimenters can affect experimentally reported pain (cold pressor task, CPT across the menstrual cycle. Methods. Based on the menstrual calendars 94 naturally cycling women and 38 women using hormonal contraceptives (Mage=19.83,  SD=3.09 were assigned to low and high fertility groups. This assignment was based on estimates of their probability of conception given their current cycle day. Experimenters (12 males, 7 females engaged in minimal procedural interactions with participants before the CPT was performed in solitude. Results. Naturally cycling women in the high fertility group showed significantly higher pain tolerance (81 sec, d=.79 following interactions with a male but not a female experimenter. Differences were not found for women in the low fertility or contraceptive groups. Discussion. The findings illustrate that menstrual functioning moderates the effect that experimenter gender has on pain reporting in women. Conclusion. These findings have implications for standardizing pain measurement protocols and understanding how basic biopsychosocial mechanisms (e.g., person-perception systems can modulate pain experiences.

  8. Reporting of embryo transfer methods in IVF research: a cross-sectional study.

    Science.gov (United States)

    Gambadauro, Pietro; Navaratnarajah, Ramesan

    2015-02-01

    The reporting of embryo transfer methods in IVF research was assessed through a cross-sectional analysis of randomized controlled trials (RCTs) published between 2010 and 2011. A systematic search identified 325 abstracts; 122 RCTs were included in the study. Embryo transfer methods were described in 42 out of 122 articles (34%). Catheters (32/42 [76%]) or ultrasound guidance (31/42 [74%]) were most frequently mentioned. Performer 'blinding' (12%) or technique standardization (7%) were seldom reported. The description of embryo transfer methods was significantly more common in trials published by journals with lower impact factor (less than 3, 39.6%; 3 or greater, 21.5%; P = 0.037). Embryo transfer methods were reported more often in trials with pregnancy as the main end-point (33% versus 16%) or with positive outcomes (37.8% versus 25.0%), albeit not significantly. Multivariate logistic regression confirmed that RCTs published in higher impact factor journals are less likely to describe embryo transfer methods (OR 0.371; 95% CI 0.143 to 0.964). Registered trials, trials conducted in an academic setting, multi-centric studies or full-length articles were not positively associated with embryo transfer methods reporting rate. Recent reports of randomized IVF trials rarely describe embryo transfer methods. The under-reporting of research methods might compromise reproducibility and suitability for meta-analysis.

  9. Measurement and Basic Physics Committee of the US cross-section evaluation working group. Annual report 1996

    Energy Technology Data Exchange (ETDEWEB)

    Smith, D.L. [Argonne National Lab., IL (United States); McLane, V. [Brookhaven National Labs, Upton, NY (United States)

    1996-11-01

    The Cross-Section Evaluation Working Group (CSEWG) is a long-standing committee charged with the responsibility for organizing and overseeing the U.S. cross-section evaluation effort. It`s main product is the official U.S. evaluated nuclear data file, ENDF. The current version of this file is Version VI. All evaluations included in ENDF are reviewed and approved by CSEWG and issued by the U.S. Nuclear Data Center, Brookhaven National Laboratory. CSEWG is comprised of volunteers from the U.S. nuclear data community who possess expertise in evaluation methodologies and who collectively have been responsible for producing most of the evaluations included in ENDF. In 1992 CSEWG added the Measurements Committee to its list of standing committees and subcommittees. This action was based on a recognition of the importance of experimental data in the evaluation process as well as the realization that measurement activities in the U.S. were declining at an alarming rate and needed all possible encouragement to avoid the loss of this resource. The mission of the Committee is to maintain a network of experimentalists in the U.S. that would provide needed encouragement to the national nuclear data measurement effort through improved communication and facilitation of collaborative activities. In 1994, an additional charge was added to the responsibilities of this Committee, namely, to serve as an interface between the more applied interests represented in CSEWG and the basic nuclear science community. This annual report is the second such document issued by the Committee. It contains voluntary contributions from eleven laboratories in the U.S. which have been prepared by members of the Committee and submitted to the Chairman for compilation and editing. It is hoped that the information provided here on the work that is going on at the reporting laboratories will prove interesting and stimulating to the readers.

  10. Epidemiology and Reporting Characteristics of Systematic Reviews of Biomedical Research: A Cross-Sectional Study.

    Directory of Open Access Journals (Sweden)

    Matthew J Page

    2016-05-01

    Full Text Available Systematic reviews (SRs can help decision makers interpret the deluge of published biomedical literature. However, a SR may be of limited use if the methods used to conduct the SR are flawed, and reporting of the SR is incomplete. To our knowledge, since 2004 there has been no cross-sectional study of the prevalence, focus, and completeness of reporting of SRs across different specialties. Therefore, the aim of our study was to investigate the epidemiological and reporting characteristics of a more recent cross-section of SRs.We searched MEDLINE to identify potentially eligible SRs indexed during the month of February 2014. Citations were screened using prespecified eligibility criteria. Epidemiological and reporting characteristics of a random sample of 300 SRs were extracted by one reviewer, with a 10% sample extracted in duplicate. We compared characteristics of Cochrane versus non-Cochrane reviews, and the 2014 sample of SRs versus a 2004 sample of SRs. We identified 682 SRs, suggesting that more than 8,000 SRs are being indexed in MEDLINE annually, corresponding to a 3-fold increase over the last decade. The majority of SRs addressed a therapeutic question and were conducted by authors based in China, the UK, or the US; they included a median of 15 studies involving 2,072 participants. Meta-analysis was performed in 63% of SRs, mostly using standard pairwise methods. Study risk of bias/quality assessment was performed in 70% of SRs but was rarely incorporated into the analysis (16%. Few SRs (7% searched sources of unpublished data, and the risk of publication bias was considered in less than half of SRs. Reporting quality was highly variable; at least a third of SRs did not report use of a SR protocol, eligibility criteria relating to publication status, years of coverage of the search, a full Boolean search logic for at least one database, methods for data extraction, methods for study risk of bias assessment, a primary outcome, an

  11. Experimental electron energy-loss spectra and cross sections for the 4/2/S - 4/2/P transition in Zn II

    Science.gov (United States)

    Chutjian, A.; Newell, W. R.

    1982-01-01

    Electron energy-loss spectra and differential cross sections are reported for inelastic scattering from Zn II. Measurements were carried out in a crossed electron beam-ion beam apparatus, at incident electron energies of 30, 40, 50, 60, 75, 85, and 100 eV, and at a scattering angle of 14 deg. The present results are the first reported measurements of inelastic electron scattering from an ion.

  12. Upper Mississippi River National Wildlife and Fish Refuge : La Crosse District : Annual Narrative Report : Fiscal Year 2002

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for the La Crosse District of Upper Mississippi River National Wildlife and Fish Refuge summarizes Refuge activities during the 2002...

  13. Upper Mississippi River National Wildlife and Fish Refuge : La Crosse District : Annual Narrative Report : Fiscal Year 2003

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for the La Crosse District of Upper Mississippi River National Wildlife and Fish Refuge summarizes Refuge activities during the 2003...

  14. Selective reporting of antibiotic susceptibility test results in European countries: an ESCMID cross-sectional survey.

    Science.gov (United States)

    Pulcini, Céline; Tebano, Gianpiero; Mutters, Nico T; Tacconelli, Evelina; Cambau, Emmanuelle; Kahlmeter, Gunnar; Jarlier, Vincent

    2017-02-01

    Selective reporting of antibiotic susceptibility test (AST) results is one possible laboratory-based antibiotic stewardship intervention. The primary aim of this study was to identify where and how selective reporting of AST results is implemented in Europe both in inpatient and in outpatient settings. An ESCMID cross-sectional, self-administered, internet-based survey was conducted among all EUCIC (European Committee on Infection Control) or EUCAST (European Committee on Antimicrobial Susceptibility Testing) national representatives in Europe and Israel. Of 38 countries, 36 chose to participate in the survey. Selective reporting of AST results was implemented in 11/36 countries (31%), was partially implemented in 4/36 (11%) and was limited to local initiatives or was not adopted in 21/36 (58%). It was endorsed as standard of care by health authorities in only three countries. The organisation of selective reporting was everywhere discretionally managed by each laboratory, with a pronounced intra- and inter-country variability. The most frequent application was in uncomplicated community-acquired infections, particularly urinary tract and skin and soft-tissue infections. The list of reported antibiotics ranged from a few first-line options, to longer reports where only last-resort antibiotics were hidden. Several barriers to implementation were reported, mainly lack of guidelines, poor system support, insufficient resources, and lack of professionals' capability. In conclusion, selective reporting of AST results is poorly implemented in Europe and is applied with a huge heterogeneity of practices. Development of an international framework, based on existing initiatives and identified barriers, could favour its dissemination as one important element of antibiotic stewardship programmes. Copyright © 2017 Elsevier B.V. and International Society of Chemotherapy. All rights reserved.

  15. Q-Dependence of the double capture cross sections measured by electron spectroscopy at 10 qkeV (q = 4-8). Comparison with other experimental data

    Energy Technology Data Exchange (ETDEWEB)

    Bordenave-Montesquieu, A.; Boudjema, M.; Benoit-Cattin, P.; Gleizes, A.; Moretto-Capelle, P.

    1989-01-01

    The q dependence of cross sections for double capture into autoionising states has been investigated by electron spectroscopy. It is shown that they are independent of the ionic core. Our results are compared with all other available experimental data obtained at 10 qkeV collision energy.

  16. Experimental study on revolving cross-flow microfiltration of highly viscous liquids%高黏度液体错流旋转微滤实验研究

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    Experimental investigation of the microfiltration (MF) using a revolving cross-flow membrane filter was performed under the condition of constant pressure difference, and different flat membranes made of polyvi-nylidene fluoride (PVDF, 0.1 μm), cellulose acetate (CA, 0.22 μm), sulfonated polyethersulfone (SPES, 0.22 μm) and polyamide (PA, 0.45 μm), respectively, were used in filtration experiments. The dependence of the filtrate mass of the cross-flow MF on time was measured on-line. The experimental results showed that the effect of the cross-flow on high viscosity medium was more significant than that on the low viscosity one.

  17. A cross-sectional study of the self-report of stress among emergency department patients

    Directory of Open Access Journals (Sweden)

    Nirenberg Ted

    2009-01-01

    Full Text Available Background: There is a lack of information about the prevalence of stress and types of stressors experienced by Emergency Department (ED patients. Objective: The present aim is to study the prevalence of stress, types of stressful situations and the relationship with other health issues within the ED population. Materials and Methods: This is a cross-sectional study performed in an ED at a level-1 urban trauma center for four months. An anonymous survey was offered to adult non critically ill patients who were admitted in the ED. They were divided on the basis of gender, age and level of stress and were asked about their demographics, reasons for their ED visit and health issues including stress, tobacco, alcohol and marijuana use, weight concern and health. Chi-square for the categorical variables and unpaired t-tests for continuous variables were conducted. Results: We interviewed 1797 patients, over 66% reported that they felt stressed on at least a weekly basis, and over 45% indicated that they felt stressed more than twice per week. While both young and old were equally stressed, females reported significantly more stress. Family, finances and work are the most frequently cited stressors. Different age groups reported different types of stressors. Overall, those patients reporting being stressed more frequently reported more high risk behaviors including cigarette and marijuana use and health problems including being overweight, being depressed, and having sleeping problems and chronic fatigue. Conclusions: Considering the high frequency of ED patients that report frequent stress and high risk behaviors, their ED visit may be an excellent opportunity to provide a referral or an intervention for stress reduction.

  18. Nuclear Physics Division, Institute of Experimental Physics, Warsaw University annual report 1995

    Energy Technology Data Exchange (ETDEWEB)

    Osuch, S. [ed.

    1996-12-31

    In the presented Annual Report the activities of Nuclear Physics Division (NPD) of Warsaw University in 1995 are described. The report consists of three sections: (i) Reaction Mechanism and Nuclear Structure (11 articles); (ii) Instrumentation and Experimental Methods (9 articles); (iii) Other Research (1 article). Additionally the list of seminars held at the NPD, personnel list and list of published papers are also given. The first, leading article in the report written by head of NPD prof. Ch. Droste the general description of the Department activity is presented.

  19. MEASUREMENT AND BASIC PHYSICS COMMITTEE OF THE U.S. CROSS-SECTION EVALUATION WORKING GROUP, ANNUAL REPORT 1997

    Energy Technology Data Exchange (ETDEWEB)

    SMITH,D.L.; MCLANE,V.

    1998-10-20

    The Cross-Section Evaluation Working Group (CSEWG) is a long-standing committee charged with responsibility for organizing and overseeing the US cross-section evaluation effort. Its main product is the official US evaluated nuclear data file, ENDF. The current version of this file is Version VI. All evaluations included in ENDF, as well as periodic modifications and updates to the file, are reviewed and approved by CSEWG and issued by the US Nuclear Data Center, Brookhaven National Laboratory. CSEWG is comprised of volunteers from the US nuclear data community who possess expertise in evaluation methodologies and who collectively have been responsible for producing most of the evaluations included in ENDF. In 1992 CSEWG added the Measurements Committee to its list of standing committees and subcommittees. This action was based on a recognition of the importance of experimental data in the evaluation process as well as the realization that measurement activities in the US were declining at an alarming rate and needed considerable encouragement to avoid the loss of this resource. The mission of the Committee is to maintain contact with experimentalists in the US and to encourage them to contribute to the national nuclear data effort. Improved communication and the facilitation of collaborative activities are among the tools employed in achieving this objective. In 1994 the Committee was given an additional mission, namely, to serve as an interface between the applied interests represented in CSEWG and the basic nuclear science community. Accordingly, its name was changed to the Measurement and Basic Physics Committee. The present annual report is the third such document issued by the Committee. It contains voluntary contributions from several laboratories in the US. Their contributions were submitted to the Chairman for compilation and editing.

  20. Quantification of rainfall prediction uncertainties using a cross-validation based technique. Methodology description and experimental validation.

    Science.gov (United States)

    Fraga, Ignacio; Cea, Luis; Puertas, Jerónimo; Salsón, Santiago; Petazzi, Alberto

    2016-04-01

    In this paper we present a new methodology to compute rainfall fields including the quantification of predictions uncertainties using raingauge network data. The proposed methodology comprises two steps. Firstly, the ordinary krigging technique is used to determine the estimated rainfall depth in every point of the study area. Then multiple equi-probable errors fields, which comprise both interpolation and measuring uncertainties, are added to the krigged field resulting in multiple rainfall predictions. To compute these error fields first the standard deviation of the krigging estimation is determined following the cross-validation based procedure described in Delrieu et al. (2014). Then, the standard deviation field is sampled using non-conditioned Gaussian random fields. The proposed methodology was applied to study 7 rain events in a 60x60 km area of the west coast of Galicia, in the Northwest of Spain. Due to its location at the junction between tropical and polar regions, the study area suffers from frequent intense rainfalls characterized by a great variability in terms of both space and time. Rainfall data from the tipping bucket raingauge network operated by MeteoGalicia were used to estimate the rainfall fields using the proposed methodology. The obtained predictions were then validated using rainfall data from 3 additional rain gauges installed within the CAPRI project (Probabilistic flood prediction with high resolution hydrologic models from radar rainfall estimates, funded by the Spanish Ministry of Economy and Competitiveness. Reference CGL2013-46245-R.). Results show that both the mean hyetographs and the peak intensities are correctly predicted. The computed hyetographs present a good fit to the experimental data and most of the measured values fall within the 95% confidence intervals. Also, most of the experimental values outside the confidence bounds correspond to time periods of low rainfall depths, where the inaccuracy of the measuring devices

  1. Measuring Cross-Cultural Supernatural Beliefs with Self- and Peer-Reports.

    Science.gov (United States)

    Bluemke, Matthias; Jong, Jonathan; Grevenstein, Dennis; Mikloušić, Igor; Halberstadt, Jamin

    2016-01-01

    Despite claims about the universality of religious belief, whether religiosity scales have the same meaning when administered inter-subjectively-or translated and applied cross-culturally-is currently unknown. Using the recent "Supernatural Belief Scale" (SBS), we present a primer on how to verify the strong assumptions of measurement invariance required in research on religion. A comparison of two independent samples, Croatians and New Zealanders, showed that, despite a sophisticated psychometric model, measurement invariance could be demonstrated for the SBS except for two noninvariant intercepts. We present a new approach for inspecting measurement invariance across self- and peer-reports as two dependent samples. Although supernatural beliefs may be hard to observe in others, the measurement model was fully invariant for Croatians and their nominated peers. The results not only establish, for the first time, a valid measure of religious supernatural belief across two groups of different language and culture, but also demonstrate a general invariance test for distinguishable dyad members nested within the same targets. More effort needs to be made to design and validate cross-culturally applicable measures of religiosity.

  2. Measuring Cross-Cultural Supernatural Beliefs with Self- and Peer-Reports

    Science.gov (United States)

    Bluemke, Matthias; Jong, Jonathan; Grevenstein, Dennis; Mikloušić, Igor; Halberstadt, Jamin

    2016-01-01

    Despite claims about the universality of religious belief, whether religiosity scales have the same meaning when administered inter-subjectively–or translated and applied cross-culturally–is currently unknown. Using the recent “Supernatural Belief Scale” (SBS), we present a primer on how to verify the strong assumptions of measurement invariance required in research on religion. A comparison of two independent samples, Croatians and New Zealanders, showed that, despite a sophisticated psychometric model, measurement invariance could be demonstrated for the SBS except for two noninvariant intercepts. We present a new approach for inspecting measurement invariance across self- and peer-reports as two dependent samples. Although supernatural beliefs may be hard to observe in others, the measurement model was fully invariant for Croatians and their nominated peers. The results not only establish, for the first time, a valid measure of religious supernatural belief across two groups of different language and culture, but also demonstrate a general invariance test for distinguishable dyad members nested within the same targets. More effort needs to be made to design and validate cross-culturally applicable measures of religiosity. PMID:27760206

  3. Principles and standards for reporting animal experiments in The Journal of Physiology and Experimental Physiology.

    Science.gov (United States)

    Grundy, David

    2015-07-01

    The Journal of Physiology and Experimental Physiology have always used UK legislation as the basis of their policy on ethical standards in experiments on non-human animals. However, for international journals with authors, editors and referees from outside the UK the policy can lack transparency and is sometimes cumbersome, requiring the intervention of a Senior Ethics Reviewer or advice from external experts familiar with UK legislation. The journals have therefore decided to set out detailed guidelines for how authors should report experimental procedures that involve animals. As well as helping authors, this new clarity will facilitate the review process and decision making where there are questions regarding animal ethics.

  4. Conceptual studies of toroidal field magnets for the tokamak experimental power reactor. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Buncher, B.R.; Chi, J.W.H.; Fernandez, R.

    1976-10-26

    This report documents the principal results of a Conceptual Design Study for the Superconducting Toroidal Field System for a Tokamak Experimental Power Reactor. Two concepts are described for peak operating fields at the windings of 8 tesla, and 12 tesla, respectively. The design and manufacturing considerations are treated in sufficient detail that cost and schedule estimates could be developed. Major uncertainties in the design are identified and their potential impact discussed, along with recommendations for the necessary research and development programs to minimize these uncertainties. The minimum dimensions of a sub-size test coil for experimental qualification of the full size design are developed and a test program is recommended.

  5. Experimental Investigation of Cross-Beam Energy Transfer Mitigation via Wavelength Detuning in Directly Driven Implosions at the National Ignition Facility

    Science.gov (United States)

    Hohenberger, M.; Marozas, J. A.; McKenty, P. W.; Rosenberg, M. J.; Radha, P. B.; Cao, D.; Knauer, J. P.; Regan, S. P.

    2016-10-01

    Cross-beam energy transfer (CBET) affects directly driven, inertial confinement fusion implosions by reducing the absorbed light and the coupling of driver energy to the target. A mitigation strategy is to detune the laser wavelength of interacting beams (Δλ ≠ 0 ) to reduce the CBET interaction volume. In polar-direct-drive (PDD) experiments at the National Ignition Facility (NIF) the CBET-imposed energy losses occur predominantly in the equatorial region. The NIF does not support a hemispheric wavelength detuning but does have Δλ capabilities between inner and outer quads. Using a north-south asymmetric beam pointing, it is therefore possible to introduce a hemispheric wavelength difference of up to Δλ = 4.6 Å in the UV. We report on experiments to test this CBET mitigation scheme in PDD experiments on the NIF. Using this asymmetric beam pointing, we have completed experiments with both Δλ = 0 and 4.6 Å. The effect of CBET on the driver-target coupling is diagnosed via implosion velocities, implosion shape, and scattered-light spectra and by comparing experimental data to 2-D DRACO simulations. This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0001944.

  6. Survey of the quality of experimental design, statistical analysis and reporting of research using animals.

    Directory of Open Access Journals (Sweden)

    Carol Kilkenny

    Full Text Available For scientific, ethical and economic reasons, experiments involving animals should be appropriately designed, correctly analysed and transparently reported. This increases the scientific validity of the results, and maximises the knowledge gained from each experiment. A minimum amount of relevant information must be included in scientific publications to ensure that the methods and results of a study can be reviewed, analysed and repeated. Omitting essential information can raise scientific and ethical concerns. We report the findings of a systematic survey of reporting, experimental design and statistical analysis in published biomedical research using laboratory animals. Medline and EMBASE were searched for studies reporting research on live rats, mice and non-human primates carried out in UK and US publicly funded research establishments. Detailed information was collected from 271 publications, about the objective or hypothesis of the study, the number, sex, age and/or weight of animals used, and experimental and statistical methods. Only 59% of the studies stated the hypothesis or objective of the study and the number and characteristics of the animals used. Appropriate and efficient experimental design is a critical component of high-quality science. Most of the papers surveyed did not use randomisation (87% or blinding (86%, to reduce bias in animal selection and outcome assessment. Only 70% of the publications that used statistical methods described their methods and presented the results with a measure of error or variability. This survey has identified a number of issues that need to be addressed in order to improve experimental design and reporting in publications describing research using animals. Scientific publication is a powerful and important source of information; the authors of scientific publications therefore have a responsibility to describe their methods and results comprehensively, accurately and transparently, and peer

  7. Survey of the Quality of Experimental Design, Statistical Analysis and Reporting of Research Using Animals

    Science.gov (United States)

    Kilkenny, Carol; Parsons, Nick; Kadyszewski, Ed; Festing, Michael F. W.; Cuthill, Innes C.; Fry, Derek; Hutton, Jane; Altman, Douglas G.

    2009-01-01

    For scientific, ethical and economic reasons, experiments involving animals should be appropriately designed, correctly analysed and transparently reported. This increases the scientific validity of the results, and maximises the knowledge gained from each experiment. A minimum amount of relevant information must be included in scientific publications to ensure that the methods and results of a study can be reviewed, analysed and repeated. Omitting essential information can raise scientific and ethical concerns. We report the findings of a systematic survey of reporting, experimental design and statistical analysis in published biomedical research using laboratory animals. Medline and EMBASE were searched for studies reporting research on live rats, mice and non-human primates carried out in UK and US publicly funded research establishments. Detailed information was collected from 271 publications, about the objective or hypothesis of the study, the number, sex, age and/or weight of animals used, and experimental and statistical methods. Only 59% of the studies stated the hypothesis or objective of the study and the number and characteristics of the animals used. Appropriate and efficient experimental design is a critical component of high-quality science. Most of the papers surveyed did not use randomisation (87%) or blinding (86%), to reduce bias in animal selection and outcome assessment. Only 70% of the publications that used statistical methods described their methods and presented the results with a measure of error or variability. This survey has identified a number of issues that need to be addressed in order to improve experimental design and reporting in publications describing research using animals. Scientific publication is a powerful and important source of information; the authors of scientific publications therefore have a responsibility to describe their methods and results comprehensively, accurately and transparently, and peer reviewers and

  8. Survey of the quality of experimental design, statistical analysis and reporting of research using animals.

    Science.gov (United States)

    Kilkenny, Carol; Parsons, Nick; Kadyszewski, Ed; Festing, Michael F W; Cuthill, Innes C; Fry, Derek; Hutton, Jane; Altman, Douglas G

    2009-11-30

    For scientific, ethical and economic reasons, experiments involving animals should be appropriately designed, correctly analysed and transparently reported. This increases the scientific validity of the results, and maximises the knowledge gained from each experiment. A minimum amount of relevant information must be included in scientific publications to ensure that the methods and results of a study can be reviewed, analysed and repeated. Omitting essential information can raise scientific and ethical concerns. We report the findings of a systematic survey of reporting, experimental design and statistical analysis in published biomedical research using laboratory animals. Medline and EMBASE were searched for studies reporting research on live rats, mice and non-human primates carried out in UK and US publicly funded research establishments. Detailed information was collected from 271 publications, about the objective or hypothesis of the study, the number, sex, age and/or weight of animals used, and experimental and statistical methods. Only 59% of the studies stated the hypothesis or objective of the study and the number and characteristics of the animals used. Appropriate and efficient experimental design is a critical component of high-quality science. Most of the papers surveyed did not use randomisation (87%) or blinding (86%), to reduce bias in animal selection and outcome assessment. Only 70% of the publications that used statistical methods described their methods and presented the results with a measure of error or variability. This survey has identified a number of issues that need to be addressed in order to improve experimental design and reporting in publications describing research using animals. Scientific publication is a powerful and important source of information; the authors of scientific publications therefore have a responsibility to describe their methods and results comprehensively, accurately and transparently, and peer reviewers and

  9. Experimental and theoretical investigation of high gradient acceleration. Progress report, June 1, 1991--February 1, 1992

    Energy Technology Data Exchange (ETDEWEB)

    Bekefi, G.; Chen, C.; Chen, S.; Danly, B.; Temkin, R.J.; Wurtele, J.S.

    1992-02-01

    This report contains a technical progress summary of the research conducted under the auspices of DOE Grant No. DE-FG0291ER-40648. ``Experimental and Theoretical Investigations of High Gradient Acceleration.`` This grant supports three research tasks: Task A consists of the design and fabrication of a 17GHz of photocathode gun, Task B supports the testing of high gradient acceleration using a 33GHz structure, and Task C comprises theoretical investigations, both in support of the experimental tasks and on critical physics issues for the development of high energy linear colliders. This report is organized as follows. The development of an rf gun design and research progress on the picosecond laser system is summarized in Sec. 2, the status of the studies of the LBL/Haimson high gradient structure, using a 50 MW free-electron laser is summarized in Sec. 3, and theoretical research progress is described in Sec. 4. Supporting material is contained in Appendices A-G.

  10. Gas-liquid mass transfer in a cross-flow hollow fiber module : Analytical model and experimental validation

    NARCIS (Netherlands)

    Dindore, V. Y.; Versteeg, G. F.

    2005-01-01

    The cross-flow operation of hollow fiber membrane contactors offers many advantages and is preferred over the parallel-flow contactors for gas-liquid mass transfer operations. However, the analysis of such a cross-flow membrane gas-liquid contactor is complicated due to the change in concentrations

  11. Report on 240Am(n,x) surrogate cross section test measurement

    Energy Technology Data Exchange (ETDEWEB)

    Ressler, J J; Burke, J T; Gostic, J; Bleuel, D; Escher, J E; Henderson, R A; Koglin, J; Reed, T; Scielzo, N D; Stoyer, M A

    2012-02-01

    The main goal of the test measurement was to determine the feasibility of the {sup 243}Am(p,t) reaction as a surrogate for {sup 240}Am(n,f). No data cross section data exists for neutron induced reactions on {sup 240}Am; the half-life of this isotope is only 2.1 days making direct measurements difficult, if not impossible. The 48-hour experiment was conducted using the STARS/LIBERACE experimental facility located at the 88 Inch Cyclotron at Lawrence Berkeley National Laboratory in August 2011. A description of the experiment and results is given. The beam energy was initially chosen to be 39 MeV in order to measure an equivalent neutron energy range from 0 to 20 MeV. However, the proton beam was not stopped in the farady cup and the beam was deposited in the surrounding shielding material. The shielding material was not conductive, and a beam current, needed for proper tuning of the beam as well as experimental monitoring, could not be read. If the {sup 240}Am(n,f) surrogate experiment is to be run at LBNL, simple modifications to the beam collection site will need to be made. The beam energy was reduced to 29 MeV, which was within an energy regime of prior experiments and tuning conditions at STARS/LIBERACE. At this energy, the beam current was successfully tuned and measured. At 29 MeV, data was collected with both the {sup 243}Am and {sup 238}U targets. An example particle identification plot is shown in Fig. 1. The triton-fission coincidence rate for the {sup 243}Am target and {sup 238}U target were measured. Coincidence rates of 0.0233(1) cps and 0.150(6) cps were observed for the {sup 243}Am and {sup 238}U targets, respectively. The difference in count rate is largely attributed to the available target material - the {sup 238}U target contains approximately 7 times more atoms than the {sup 243}Am. A proton beam current of {approx}0.7 nA was used for measurements on both targets. Assuming a full experimental run under similar conditions, an estimate for the

  12. Cross-Laboratory Comparative Study of the Impact of Experimental and Regression Methodologies on Salmonella Thermal Inactivation Parameters in Ground Beef.

    Science.gov (United States)

    Hildebrandt, Ian M; Marks, Bradley P; Juneja, Vijay K; Osoria, Marangeli; Hall, Nicole O; Ryser, Elliot T

    2016-07-01

    Isothermal inactivation studies are commonly used to quantify thermal inactivation kinetics of bacteria. Meta-analyses and comparisons utilizing results from multiple sources have revealed large variations in reported thermal resistance parameters for Salmonella, even when in similar food materials. Different laboratory or regression methodologies likely are the source of methodology-specific artifacts influencing the estimated parameters; however, such effects have not been quantified. The objective of this study was to evaluate the effects of laboratory and regression methodologies on thermal inactivation data generation, interpretation, modeling, and inherent error, based on data generated in two independent laboratories. The overall experimental design consisted of a cross-laboratory comparison using two independent laboratories (Michigan State University and U.S. Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center [ERRC] laboratories), both conducting isothermal Salmonella inactivation studies (55, 60, 62°C) in ground beef, and each using two methodologies reported in prior studies. Two primary models (log-linear and Weibull) with one secondary model (Bigelow) were fitted to the resultant data using three regression methodologies (two two-step regressions and a one-step regression). Results indicated that laboratory methodology impacted the estimated D60°C- and z-values (α = 0.05), with the ERRC methodology yielding parameter estimates ∼25% larger than the Michigan State University methodology, regardless of the laboratory. Regression methodology also impacted the model and parameter error estimates. Two-step regressions yielded root mean square error values on average 40% larger than the one-step regressions. The Akaike Information Criterion indicated the Weibull as the more correct model in most cases; however, caution should be used to confirm model robustness in application to real-world data. Overall, the

  13. Summary Report of the Workshop on The Experimental Nuclear Reaction Data Database

    Energy Technology Data Exchange (ETDEWEB)

    Semkova, V. [IAEA Nuclear Data Section, Vienna (Austria); Pritychenko, B. [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2014-10-10

    The Workshop on the Experimental Nuclear Reaction Data Database (EXFOR) was held at IAEA Headquarters in Vienna from 6 to 10 October 2014. The workshop was organized to discuss various aspects of the EXFOR compilation process including compilation rules, different techniques for nuclear reaction data measurements, software developments, etc. A summary of the presentations and discussions that took place during the workshop is reported here.

  14. Summary Report of the Workshop on The Experimental Nuclear Reaction Data Database

    Energy Technology Data Exchange (ETDEWEB)

    Semkova, V. [IAEA Nuclear Data Section, Vienna (Austria); Pritychenko, B. [Brookhaven National Lab. (BNL), Upton, NY (United States)

    2014-12-01

    The Workshop on the Experimental Nuclear Reaction Data Database (EXFOR) was held at IAEA Headquarters in Vienna from 6 to 10 October 2014. The workshop was organized to discuss various aspects of the EXFOR compilation process including compilation rules, different techniques for nuclear reaction data measurements, software developments, etc. A summary of the presentations and discussions that took place during the workshop is reported here.

  15. Computational and experimental studies of hydrodynamic instabilities and turbulent mixing: Review of VNIIEF efforts. Summary report

    Energy Technology Data Exchange (ETDEWEB)

    Andronov, V.A.; Zhidov, I.G.; Meskov, E.E.; Nevmerzhitskii, N.V.; Nikiforov, V.V.; Razin, A.N.; Rogatchev, V.G.; Tolshmyakov, A.I.; Yanilkin, Y.V. [Russian Federal Nuclear Center (Russian Federation)

    1994-12-31

    The report presents the basic results of some calculations, theoretical and experimental efforts in the study of Rayleigh-Taylor, Kelvin-Helmholtz, Richtmyer-Meshkov instabilities and the turbulent mixing which is caused by their evolution. Since the late forties the VNIIEF has been conducting these investigations. This report is based on the data which were published in different times in Russian and foreign journals. The first part of the report deals with calculations an theoretical techniques for the description of hydrodynamic instabilities applied currently, as well as with the results of several individual problems and their comparison with the experiment. These methods can be divided into two types: direct numerical simulation methods and phenomenological methods. The first type includes the regular 2D and 3D gasdynamical techniques as well as the techniques based on small perturbation approximation and on incompressible liquid approximation. The second type comprises the techniques based on various phenomenological turbulence models. The second part of the report describes the experimental methods and cites the experimental results of Rayleigh-Taylor and Richtmyer-Meskov instability studies as well as of turbulent mixing. The applied methods were based on thin-film gaseous models, on jelly models and liquid layer models. The research was done for plane and cylindrical geometries. As drivers, the shock tubes of different designs were used as well as gaseous explosive mixtures, compressed air and electric wire explosions. The experimental results were applied in calculational-theoretical technique calibrations. The authors did not aim at covering all VNIIEF research done in this field of science. To a great extent the choice of the material depended on the personal contribution of the author in these studies.

  16. A brief report on MRI investigation of experimental traumatic brain injury

    Institute of Scientific and Technical Information of China (English)

    Timothy Q.Duong; Lora T.Watts

    2016-01-01

    Traumatic brain injury is a major cause of death and disability. This is a brief report based on a symposium presentation to the2014 Chinese Neurotrauma Association Meeting in San Francisco, USA. It covers the work from our laboratory in applying multimodal MRI to study experimental traumatic brain injury in rats with comparisons made to behavioral tests and histology. MRI protocols include structural, perfusion, manganese-enhanced, diffusion-tensor MRI, and MRI of blood-brain barrier integrity and cerebrovascular reactivity.

  17. Women With Addictions Report Reduced Anxiety After Group Music Therapy: A Quasi-Experimental Study

    OpenAIRE

    Diestelkamp, Wiebke S.; Susan C. Gardstrom

    2013-01-01

    Roughly six million females in the USA abuse or are addicted to alcohol. Women are more likely than men to report depression and anxiety as triggers for substance use and relapse, which emphasizes the importance of therapies designed to help women mitigate anxiety.Research supporting music therapy (MT) with women with addictions is scarce. In this quasi-experimental investigation, we hoped to learn: (1) What percentage of women with addictive disorders in a 45-minute group MT session will rep...

  18. Experimental investigation of collisionless electron-electron microinstabilities. Final technical report for the period August 1, 1997-October 31, 2000

    Energy Technology Data Exchange (ETDEWEB)

    Scime, Earl E. [West Virginia Univ., Morgantown, WV (United States)

    2000-12-11

    This is the final report for the Office of Fusion Energy sponsored project entitled, "Experimental Investigation of Collisionless Electron-Electron Microinstabilities." The report summarizes the scientific and human resource development accomplishments supported through this project.

  19. Reported food intake and distribution of body fat: a repeated cross-sectional study

    Directory of Open Access Journals (Sweden)

    Stenlund Hans

    2006-12-01

    Full Text Available Abstract Background Body mass, as well as distribution of body fat, are predictors of both diabetes and cardiovascular disease. In Northern Sweden, despite a marked increase in average body mass, prevalence of diabetes was stagnant and myocardial infarctions decreased. A more favourable distribution of body fat is a possible contributing factor. This study investigates the relative importance of individual food items for time trends in waist circumference (WC and hip circumference (HC on a population level. Methods Independent cross-sectional surveys conducted in 1986, 1990, 1994 and 1999 in the two northernmost counties of Sweden with a common population of 250000. Randomly selected age stratified samples, altogether 2982 men and 3087 women aged 25–64 years. Questionnaires were completed and anthropometric measurements taken. For each food item, associations between frequency of consumption and waist and hip circumferences were estimated. Partial regression coefficients for every level of reported intake were multiplied with differences in proportion of the population reporting the corresponding levels of intake in 1986 and 1999. The sum of these product terms for every food item was the respective estimated impact on mean circumference. Results Time trends in reported food consumption associated with the more favourable gynoid distribution of adipose tissue were increased use of vegetable oil, pasta and 1.5% fat milk. Trends associated with abdominal obesity were increased consumption of beer in men and higher intake of hamburgers and French fried potatoes in women. Conclusion Food trends as markers of time trends in body fat distribution have been identified. The method is a complement to conventional approaches to establish associations between food intake and disease risk on a population level.

  20. Biomedical journals lack a consistent method to detect outcome reporting bias: a cross-sectional analysis.

    Science.gov (United States)

    Huan, L N; Tejani, A M; Egan, G

    2014-10-01

    An increasing amount of recently published literature has implicated outcome reporting bias (ORB) as a major contributor to skewing data in both randomized controlled trials and systematic reviews; however, little is known about the current methods in place to detect ORB. This study aims to gain insight into the detection and management of ORB by biomedical journals. This was a cross-sectional analysis involving standardized questions via email or telephone with the top 30 biomedical journals (2012) ranked by impact factor. The Cochrane Database of Systematic Reviews was excluded leaving 29 journals in the sample. Of 29 journals, 24 (83%) responded to our initial inquiry of which 14 (58%) answered our questions and 10 (42%) declined participation. Five (36%) of the responding journals indicated they had a specific method to detect ORB, whereas 9 (64%) did not have a specific method in place. The prevalence of ORB in the review process seemed to differ with 4 (29%) journals indicating ORB was found commonly, whereas 7 (50%) indicated ORB was uncommon or never detected by their journal previously. The majority (n = 10/14, 72%) of journals were unwilling to report or make discrepancies found in manuscripts available to the public. Although the minority, there were some journals (n = 4/14, 29%) which described thorough methods to detect ORB. Many journals seemed to lack a method with which to detect ORB and its estimated prevalence was much lower than that reported in literature suggesting inadequate detection. There exists a potential for overestimation of treatment effects of interventions and unclear risks. Fortunately, there are journals within this sample which appear to utilize comprehensive methods for detection of ORB, but overall, the data suggest improvements at the biomedical journal level for detecting and minimizing the effect of this bias are needed. © 2014 John Wiley & Sons Ltd.

  1. Characterization and Prediction of the Volume Flow Rate Aerating a Cross Ventilated Bilding by Means of Experimental Techniques and Numerical Approaches

    DEFF Research Database (Denmark)

    Larsen, Tine Steen; Nikolopoulos, N.; Nikolopoulos, A.

    2011-01-01

    anemometers across the openings, whilst the numerical methodology is based on the time-dependant solution of the governing Navier-Stokes equations. The experimental data are compared to the corresponding numerical results, revealing the unsteady character of the flow field especially at large incidence angles......The paper presents an extensive experimental and numerical study on a cross-ventilated building providing important features of the induced flow patterns at the two openings as a function of the free stream wind velocity’s magnitude and its incidence angle. The experimental data are measured via....... Furthermore, additional information regarding the flow field near the opening edges, not easily extracted by experimental methods, provide an in depth sight in the main characteristics of the flow field both at the openings but also inside the building. Finally, a new methodology for the approximation...

  2. Nursing home administrators' perspectives on a study feedback report: a cross sectional survey.

    Science.gov (United States)

    Boström, Anne-Marie; Cranley, Lisa A; Hutchinson, Alison M; Cummings, Greta G; Norton, Peter G; Estabrooks, Carole A

    2012-09-13

    This project is part of the Translating Research in Elder Care (TREC) program of research, a multi-level and longitudinal research program being conducted in 36 nursing homes in three Canadian Prairie Provinces. The overall goal of TREC is to improve the quality of care for older persons living in nursing homes and the quality of work life for care providers. The purpose of this paper is to report on development and evaluation of facility annual reports (FARs) from facility administrators' perspectives on the usefulness, meaningfulness, and understandability of selected data from the TREC survey. A cross sectional survey design was used in this study. The feedback reports were developed in collaboration with participating facility administrators. FARs presented results in four contextual areas: workplace culture, feedback processes, job satisfaction, and staff burnout. Six weeks after FARs were mailed to each administrator, we conducted structured telephone interviews with administrators to elicit their evaluation of the FARs. Administrators were also asked if they had taken any actions as a result of the FAR. Descriptive and inferential statistics, as well as content analysis for open-ended questions, were used to summarize findings. Thirty-one facility administrators (representing thirty-two facilities) participated in the interviews. Six administrators had taken action and 18 were planning on taking action as a result of FARs. The majority found the four contextual areas addressed in FAR to be useful, meaningful, and understandable. They liked the comparisons made between data from years one and two and between their facility and other TREC study sites in their province. Twenty-two indicated that they would like to receive information on additional areas such as aggressive behaviours of residents and information sharing. Twenty-four administrators indicated that FARs contained enough information, while eight found FARs 'too short'. Administrators who reported

  3. Nursing home administrators’ perspectives on a study feedback report: a cross sectional survey

    Directory of Open Access Journals (Sweden)

    Boström Anne-Marie

    2012-09-01

    Full Text Available Abstract Background This project is part of the Translating Research in Elder Care (TREC program of research, a multi-level and longitudinal research program being conducted in 36 nursing homes in three Canadian Prairie Provinces. The overall goal of TREC is to improve the quality of care for older persons living in nursing homes and the quality of work life for care providers. The purpose of this paper is to report on development and evaluation of facility annual reports (FARs from facility administrators’ perspectives on the usefulness, meaningfulness, and understandability of selected data from the TREC survey. Methods A cross sectional survey design was used in this study. The feedback reports were developed in collaboration with participating facility administrators. FARs presented results in four contextual areas: workplace culture, feedback processes, job satisfaction, and staff burnout. Six weeks after FARs were mailed to each administrator, we conducted structured telephone interviews with administrators to elicit their evaluation of the FARs. Administrators were also asked if they had taken any actions as a result of the FAR. Descriptive and inferential statistics, as well as content analysis for open-ended questions, were used to summarize findings. Results Thirty-one facility administrators (representing thirty-two facilities participated in the interviews. Six administrators had taken action and 18 were planning on taking action as a result of FARs. The majority found the four contextual areas addressed in FAR to be useful, meaningful, and understandable. They liked the comparisons made between data from years one and two and between their facility and other TREC study sites in their province. Twenty-two indicated that they would like to receive information on additional areas such as aggressive behaviours of residents and information sharing. Twenty-four administrators indicated that FARs contained enough information, while eight

  4. Field observation of advance warning/advisory signage for passive railway crossings with restricted lateral sightline visibility: an experimental investigation.

    Science.gov (United States)

    Ward, N J; Wilde, G J

    1995-04-01

    This study evaluated a newly proposed series of signs intended for passive crossings with restrictions to lateral sightline visibility. These signs provide advance warning of a crossing and the restriction to lateral visibility. In addition, the signs advise motorists to come to a complete stop before crossing. Motorist behaviour was examined before and after installation of these signs at a rural passive crossing. A second site was observed in parallel to control partially for any confounding effects. Results indicated that motorists reduced speed and searched approach quadrants longer at points in the approachway after installation of the signs. However, there was no reliable increase in the number of motorists coming to complete stop, engaging in search behaviours, or classified as safe. The results are discussed in terms of reasons for the lack of compliance with the sign advisory.

  5. Neutron Resonance Parameters of 238U and the Calculated Cross Sections from the Reich-Moore Analysis of Experimental Data in the Neutron Energy Range from 0 keV to 20 keV

    Energy Technology Data Exchange (ETDEWEB)

    Derrien, H

    2005-12-05

    The neutron resonance parameters of {sup 238}U were obtained from a SAMMY analysis of high-resolution neutron transmission measurements and high-resolution capture cross section measurements performed at the Oak Ridge Electron Linear Accelerator (ORELA) in the years 1970-1990, and from more recent transmission and capture cross section measurements performed at the Geel Linear Accelerator (GELINA). Compared with previous evaluations, the energy range for this resonance analysis was extended from 10 to 20 keV, taking advantage of the high resolution of the most recent ORELA transmission measurements. The experimental database and the method of analysis are described in this report. The neutron transmissions and the capture cross sections calculated with the resonance parameters are compared with the experimental data. A description is given of the statistical properties of the resonance parameters and of the recommended values of the average parameters. The new evaluation results in a slight decrease of the effective capture resonance integral and improves the prediction of integral thermal benchmarks by 70 pcm to 200 pcm.

  6. Experimental geothermal research facilities study (Phase O). Final report No. 26405-6001-RU-00

    Energy Technology Data Exchange (ETDEWEB)

    1974-12-31

    This study focuses on identification of a representative liquid-dominated geothermal reservoir of moderate temperature and salinity, preliminary design of an appropriate energy conversion system, identification of critical technology and planning for the implementation of experimental facilities. Results of Phase O of the project are reported in two volumes. Volume II presents detailed results of studies and analyses arranged in nine appendices including the final report by a subcontractor on the study. The specific appendices are: Appendix A: Geothermal Resources of the Western United States; Appendix B: Site Selection Process and the East Mesa Geothermal Field; Appendix C: East Mesa Geothermal Field Reservoir Characteristics; Appendix D: Advisor's Views and Comments; Appendix E: Thermodynamic Analyses; Appendix F: Material and Corrosion Factors; Appendix G: Preliminary Reliability/Maintainability Analyses; Appendix H: Environmental Impact Analysis Guidelines; and Appendix I: Report to the National Science Foundation/TRW Systems Group by Rogers Engineering Company, Inc., San Francisco, California.

  7. Management of Patient-Reported Outcome (PRO Alerts in Clinical Trials: A Cross Sectional Survey.

    Directory of Open Access Journals (Sweden)

    Derek Kyte

    Full Text Available Assessment of patient-reported outcomes (PROs provides valuable information to inform patient-centered care, but may also reveal 'PRO alerts': psychological distress or physical symptoms that may require an immediate response. Ad-hoc management of PRO alerts in clinical trials may result in suboptimal patient care or potentially bias trial results. To gain greater understanding of current practice in PRO alert management we conducted a national survey of personnel involved in clinical trials with a PRO endpoint.We conducted a national cross-sectional survey of 767 UK-based research nurses, data managers/coordinators, trial managers and chief/principal investigators involved in clinical trials using PROs. Respondents were self-selected volunteers from a non-randomised sample of eligible individuals recruited via 55 UK Clinical Research Collaboration Registered Clinical Trials Units and 19 Comprehensive Local Research Networks. Questions centred on the proportion of trial personnel encountering alerts, how staff responded to PRO alerts and whether current guidance was deemed sufficient to support research personnel. We undertook descriptive analyses of the quantitative data and directed thematic analysis of free-text comments. 20% of research nurses did not view completed PRO questionnaires and were not in a position to discover alerts, 39-50% of the remaining respondent group participants reported encountering PRO alerts. Of these, 83% of research nurses and 54% of data managers/trial coordinators reported taking action to assist the trial participant, but less than half were able to record the intervention in the trial documentation. Research personnel reported current PRO alert guidance/training was insufficient.Research personnel are intermittently exposed to PRO alerts. Some intervene to help trial participants, but are not able to record this intervention in the trial documentation, risking co-intervention bias. Other staff do not check PRO

  8. In vivo Confocal Microscopy Report after Lasik with Sequential Accelerated Corneal Collagen Cross-Linking Treatment.

    Science.gov (United States)

    Mazzotta, Cosimo; Balestrazzi, Angelo; Traversi, Claudio; Caragiuli, Stefano; Caporossi, Aldo

    2014-01-01

    We report the first pilot qualitative confocal microscopic analysis of a laser in situ keratomileusis (Lasik) treatment combined with sequential high-fluence accelerated corneal collagen cross-linking, denominated Lasik XTra, by means of HRT II laser scanning in vivo confocal microscopy after a 6-month follow-up. After obtaining approval from the Siena University Hospital Institutional Review Board, a 33-year-old female patient underwent a Lasik XTra procedure in her left eye. Confocal analysis demonstrated induced slight corneal microstructural changes by the interaction between UV-A, riboflavin and corneal stromal collagen, beyond the interface to a depth of 160 µm, without adverse events at the interface and endothelial levels. This application may be considered a prophylactic biomechanical treatment, stiffening the intermediate corneal stroma to prevent corneal ectasia and stabilizing the clinical results of refractive surgery. According to our preliminary experiences, this combined approach may be useful in higher-risk Lasik patients for hyperopic treatments, high myopia and lower corneal thicknesses.

  9. In vivo Confocal Microscopy Report after Lasik with Sequential Accelerated Corneal Collagen Cross-Linking Treatment

    Directory of Open Access Journals (Sweden)

    Cosimo Mazzotta

    2014-04-01

    Full Text Available We report the first pilot qualitative confocal microscopic analysis of a laser in situ keratomileusis (Lasik treatment combined with sequential high-fluence accelerated corneal collagen cross-linking, denominated Lasik XTra, by means of HRT II laser scanning in vivo confocal microscopy after a 6-month follow-up. After obtaining approval from the Siena University Hospital Institutional Review Board, a 33-year-old female patient underwent a Lasik XTra procedure in her left eye. Confocal analysis demonstrated induced slight corneal microstructural changes by the interaction between UV-A, riboflavin and corneal stromal collagen, beyond the interface to a depth of 160 µm, without adverse events at the interface and endothelial levels. This application may be considered a prophylactic biomechanical treatment, stiffening the intermediate corneal stroma to prevent corneal ectasia and stabilizing the clinical results of refractive surgery. According to our preliminary experiences, this combined approach may be useful in higher-risk Lasik patients for hyperopic treatments, high myopia and lower corneal thicknesses.

  10. An assessment of recently published gene expression data analyses: reporting experimental design and statistical factors

    Directory of Open Access Journals (Sweden)

    Azuaje Francisco

    2006-06-01

    Full Text Available Abstract Background The analysis of large-scale gene expression data is a fundamental approach to functional genomics and the identification of potential drug targets. Results derived from such studies cannot be trusted unless they are adequately designed and reported. The purpose of this study is to assess current practices on the reporting of experimental design and statistical analyses in gene expression-based studies. Methods We reviewed hundreds of MEDLINE-indexed papers involving gene expression data analysis, which were published between 2003 and 2005. These papers were examined on the basis of their reporting of several factors, such as sample size, statistical power and software availability. Results Among the examined papers, we concentrated on 293 papers consisting of applications and new methodologies. These papers did not report approaches to sample size and statistical power estimation. Explicit statements on data transformation and descriptions of the normalisation techniques applied prior to data analyses (e.g. classification were not reported in 57 (37.5% and 104 (68.4% of the methodology papers respectively. With regard to papers presenting biomedical-relevant applications, 41(29.1 % of these papers did not report on data normalisation and 83 (58.9% did not describe the normalisation technique applied. Clustering-based analysis, the t-test and ANOVA represent the most widely applied techniques in microarray data analysis. But remarkably, only 5 (3.5% of the application papers included statements or references to assumption about variance homogeneity for the application of the t-test and ANOVA. There is still a need to promote the reporting of software packages applied or their availability. Conclusion Recently-published gene expression data analysis studies may lack key information required for properly assessing their design quality and potential impact. There is a need for more rigorous reporting of important experimental

  11. Experimental Study of the Cross-infection Risk due to the Cross-flow of Exhaled Airflows and a Plane Jet with the Protected Occupied Zone Ventilation

    DEFF Research Database (Denmark)

    Cao, Guangyu; Nielsen, Peter Vilhelm; Xu, Chunwen

    2014-01-01

    The objective of this study is to determine how the cross infection risk can be minimized between two persons with a plane jet of the protected occupied zone ventilation (POV) system. The exhaled air of infected people can be one of the sources of infectious respiratory viruses and bacteria....... The infectious exhaled air may from the respiratory activities such as the breathing, coughing, sneezing, and talking. A plane jet was formed in the POV system to separate the room into a source zone and a target zone in a climate chamber, in which tow breathing thermal manikins are employed to produce breathing...... airflows. The exhaled air velocity and the downward jet velocity were measured at a frequency of 10 Hz, by which the maximum velocity of exhaled airflow can be obtained. In this study, the promising results show that the downward plane jet of POV system can break the exhalation airflow from the source...

  12. Experimental and theoretical investigation of the triple differential cross section for electron impact ionization of pyrimidine molecules.

    Science.gov (United States)

    Builth-Williams, J D; Bellm, S M; Jones, D B; Chaluvadi, Hari; Madison, D H; Ning, C G; Lohmann, B; Brunger, M J

    2012-01-14

    Cross-section data for electron impact induced ionization of bio-molecules are important for modelling the deposition of energy within a biological medium and for gaining knowledge of electron driven processes at the molecular level. Triply differential cross sections have been measured for the electron impact ionization of the outer valence 7b(2) and 10a(1) orbitals of pyrimidine, using the (e, 2e) technique. The measurements have been performed with coplanar asymmetric kinematics, at an incident electron energy of 250 eV and ejected electron energy of 20 eV, for scattered electron angles of -5°, -10°, and -15°. The ejected electron angular range encompasses both the binary and recoil peaks in the triple differential cross section. Corresponding theoretical calculations have been performed using the molecular 3-body distorted wave model and are in reasonably good agreement with the present experiment.

  13. Performance of European cross-country oil pipelines. Statistical summary of reported spillages in 2006 and since 1971

    Energy Technology Data Exchange (ETDEWEB)

    Larive, J.F. [CONCAWE, Brussels (Belgium)

    2008-08-15

    Since 1971 CONCAWE has been collecting data on spillages from cross-country oil pipelines in Europe. The information is collated in an annual report which includes an analysis of the human and environmental consequences and of the underlying causes of such incidents. CONCAWE report 7/08 covers the results for the year 2006 and includes an analysis of the accumulated data for the whole 36-year period from 1971 to 2006.

  14. Performance of European cross-country oil pipelines. Statistical summary of reported spillages in 2006 and since 1971

    Energy Technology Data Exchange (ETDEWEB)

    Larive, J.F. [CONCAWE, Brussels (Belgium)

    2008-08-15

    Since 1971 CONCAWE has been collecting data on spillages from cross-country oil pipelines in Europe. The information is collated in an annual report which includes an analysis of the human and environmental consequences and of the underlying causes of such incidents. CONCAWE report 7/08 covers the results for the year 2006 and includes an analysis of the accumulated data for the whole 36-year period from 1971 to 2006.

  15. Final report for CAFDA project entitled, Experimental and numerical investigation of accelerated fluid interface

    Energy Technology Data Exchange (ETDEWEB)

    Greenough, J.A.; Jacobs, J.W.; Marcus, D.L.

    1997-03-26

    The main thrust of this collaborative effort can be summarized as an attempt to use the strengths of physical experiments and numerical simulations in understanding the dynamics of accelerated interfaces. Laboratory experiments represent the true nature of the physical processes and the simulations represent a model of these processes. We have taken the first steps toward this goal through development and calibration of new experimental techniques as well as validation and direct, systematic, and quantitative comparison with computational results. This report summarizes accomplishments made towards these goals. More detailed information is provided in reprints appended to this document.

  16. Operational readiness review for the Waste Experimental Reduction Facility. Final report

    Energy Technology Data Exchange (ETDEWEB)

    1993-11-01

    An Operational Readiness Review (ORR) at the Idaho National Engineering Laboratory`s (INEL`s) Waste Experimental Reduction Facility (WERF) was conducted by EG&G Idaho, Inc., to verify the readiness of WERF to resume operations following a shutdown and modification period of more than two years. It is the conclusion of the ORR Team that, pending satisfactory resolution of all pre-startup findings, WERF has achieved readiness to resume unrestricted operations within the approved safety basis. ORR appraisal forms are included in this report.

  17. Experimental Verification of Neutron Phenomenology in Lead and Transmutation by Adiabatic Resonance Crossing in Accelerator Driven Systems: a Short Summary

    CERN Document Server

    Abánades, A; Andriamonje, Samuel A; Angelopoulos, Angelos; Apostolakis, Alcibiades J; Arnould, H; Belle, E; Bompas, C A; Brozzi, Delecurgo; Bueno, J; Buono, S; Carminati, F; Casagrande, Federico; Cennini, P; Collar, J I; Cerro, E; Del Moral, R; Díez, S; Dumps, Ludwig; Eleftheriadis, C; Embid, M; Fernández, R; Gálvez, J; García, J; Gelès, C; Giorni, A; González, E; González, O; Goulas, I; Heuer, R D; Hussonnois, M; Kadi, Y; Karaiskos, P; Kitis, G; Klapisch, Robert; Kokkas, P; Lacoste, V; Le Naour, C; Lèpez, C; Loiseaux, J M; Martínez-Val, J M; Méplan, O; Nifenecker, H; Oropesa, J; Papadopoulos, I M; Pavlopoulos, P; Pérez-Enciso, E; Pérez-Navarro, A; Perlado, M; Placci, A; Poza, M; Revol, Jean Pierre Charles; Rubbia, Carlo; Rubio, J A; Sakelliou, L; Saldaña, F; Savvidis, E; Schussler, F; Sirvent, C; Tamarit, J; Trubert, D; Tzima, A; Viano, J B; Vieira, S L; Vlachoudis, V; Zioutas, Konstantin; CERN. Geneva. SPS and LEP Division

    2000-01-01

    The Transmutation by Adiabatic Resonance Crossing (TARC) experiment was carried out as PS211 at the CERN PS from 1996 to 1999. Energy and space distributions of spallation neutrons (from 2.5 and 3.57 GeV/c CERN proton beams) slowing down in a 3.3x3.3x3 m3 lead volume and neutron capture rates on long-lived fission fragements 99Tc and 129I demonstrate that Adiabatic Resonance Crossing (ARC) can be used to eliminate efficiently such nuclear waste and validate innovative simulation.

  18. Assessment of subgrid-scale models with a large-eddy simulation-dedicated experimental database: The pulsatile impinging jet in turbulent cross-flow

    Science.gov (United States)

    Baya Toda, Hubert; Cabrit, Olivier; Truffin, Karine; Bruneaux, Gilles; Nicoud, Franck

    2014-07-01

    Large-Eddy Simulation (LES) in complex geometries and industrial applications like piston engines, gas turbines, or aircraft engines requires the use of advanced subgrid-scale (SGS) models able to take into account the main flow features and the turbulence anisotropy. Keeping this goal in mind, this paper reports a LES-dedicated experiment of a pulsatile hot-jet impinging a flat-plate in the presence of a cold turbulent cross-flow. Unlike commonly used academic test cases, this configuration involves different flow features encountered in complex configurations: shear/rotating regions, stagnation point, wall-turbulence, and the propagation of a vortex ring along the wall. This experiment was also designed with the aim to use quantitative and nonintrusive optical diagnostics such as Particle Image Velocimetry, and to easily perform a LES involving a relatively simple geometry and well-controlled boundary conditions. Hence, two eddy-viscosity-based SGS models are investigated: the dynamic Smagorinsky model [M. Germano, U. Piomelli, P. Moin, and W. Cabot, "A dynamic subgrid-scale eddy viscosity model," Phys. Fluids A 3(7), 1760-1765 (1991)] and the σ-model [F. Nicoud, H. B. Toda, O. Cabrit, S. Bose, and J. Lee, "Using singular values to build a subgrid-scale model for large eddy simulations," Phys. Fluids 23(8), 085106 (2011)]. Both models give similar results during the first phase of the experiment. However, it was found that the dynamic Smagorinsky model could not accurately predict the vortex-ring propagation, while the σ-model provides a better agreement with the experimental measurements. Setting aside the implementation of the dynamic procedure (implemented here in its simplest form, i.e., without averaging over homogeneous directions and with clipping of negative values to ensure numerical stability), it is suggested that the mitigated predictions of the dynamic Smagorinsky model are due to the dynamic constant, which strongly depends on the mesh resolution

  19. Design of an experimental setup to measure the K-shell photoelectric cross sections and other atomic parameters at K edge

    Energy Technology Data Exchange (ETDEWEB)

    Garcia-Alvarez, J.A.; Lopez-Pino, N.; Rizo, O. Diaz; Corrales, Y.; Padilla-Cabal, F.; Perez-Liva, M.; Alessandro, K.D.; Maidana, N.L. [Instituto Superior de Tecnologia y Ciencias Aplicadas (InSTEC), La Habana (Cuba)

    2010-07-01

    Full text: An experimental setup to measure the K shell jump ratio, jump factor and the ratio of total to K-shell photo-electric cross section at K edge was designed with Monte Carlo (MC) simulations, using the MCNPX V 2.6 code. In our arrangement, Bremsstrahlung photons, produced by beta particles from a {sup 90}Sr- {sup 90}Y source (activity - 0.1 mCi) hitting a thin Nickel converter, were used to irradiate the targets. The incident and transmitted spectra were measured with an HPGe detector coupled to conventional electronics. A sharp decrease in intensity at the K-shell binding energy was observed in the transmitted spectra, which, after corrections for photon attenuation, showed the known behavior for the photoelectric cross section as function of photon energy. The photon beam divergence effects were corrected with a calibration curve calculated with MC from simulations of a parallel and a divergent beam. Targets of Dy, Ta, Pt and Au were used to test the setup. The obtained data were processed by fitting either the total cross section to a sigmoidal function or the cross section branches around the K edge to the empirical law {sigma} = (A/E){sup n}. The results obtained using the first method show the influence of detector energy resolution in the data, because the measured jump at the K edge is not so sharp as it should be. Furthermore, additional calculations were done to obtain the anomalous scattering factors and the K-shell oscillator strengths. The values obtained for the K-shell photoelectric cross sections were compared with theoretical and other experimental data. In most cases, relative deviations below 10% were found. (author)

  20. EXPERIMENTAL CURRICULA IN CHEMISTRY, A REPORT OF THE A.C.C.C. CONFERENCE ON CURRICULUM EXPERIMENTATION (CHICAGO, OCTOBER 1963).

    Science.gov (United States)

    HUME, DAVID N.

    FOUR PROGRAMS ARE IDENTIFIED AND DESCRIBED AS REPRESENTATIVE OF THE EXPERIMENTATION BEING CONDUCTED IN THE UNDERGRADUATE CHEMISTRY CURRICULUM IN AMERICAN HIGHER EDUCATION. (1) THE UNIVERSITY OF ILLINOIS AND THE MASSACHUSETTS INSTITUTE OF TECHNOLOGY REQUIRE THAT A STUDENT TAKE A GROUP OF "CORE" COURSES WHICH PROVIDE, RELATIVELY EARLY IN HIS…

  1. Tranexamic acid, an inhibitor of plasminogen activation, reduces urinary collagen cross-link excretion in both experimental and rheumatoid arthritis

    NARCIS (Netherlands)

    Ronday, H.K.; TeKoppele, J.M.; Greenwald, R.A.; Moak, S.A.; Roos, J.A.D.M. de; Dijkmans, B.A.C.; Breedveld, F.C.; Verheijen, J.H.

    1998-01-01

    The plasminogen activation system is one of the enzyme systems held responsible for bone and cartilage degradation in rheumatoid arthritis (RA). In this study, we evaluated the effect of tranexamic acid (TEA), an inhibitor of plasminogen activation, on urinary collagen cross-link excretion and radio

  2. Two-Pion Production in Proton-Proton Collisions -- Experimental Total Cross Sections and their Isospin Decomposition

    CERN Document Server

    Skorodko, T; Bogoslawsky, D; Calén, H; Clement, H; Doroshkevich, E; Demiroers, L; Ekström, C; Fransson, K; Gustafsson, L; Höistad, B; Ivanov, G; Jacewicz, M; Jiganov, E; Johansson, T; Khakimova, O; Keleta, S; Koch, I; Kren, F; Kullander, S; Kupsc, A; Marciniewski, P; Meier, R; Morosov, B; Pauly, C; Petren, H; Petukhov, Yu P; Povtorejko, A; Ruber, R J M Y; Schonning, K; Scobel, W; Shwartz, B; Stepaniak, J; Thorngren-Engblom, P; Tikhomirov, V; Wagner, G J; Wolke, M; Yamamoto, A; Zabierowski, J; Zlomanczuk, Yu

    2009-01-01

    The two-pion production in pp-collisions has been investigated at CELSIUS in exclusive measurements from threshold up to $T_p$ = 1.36 GeV. Total and differential cross sections have been obtained for the channels $pn\\pi^+\\pi^0$, $pp\\pi^+\\pi^-$, $pp\\pi^0\\pi^0$ and also $nn\\pi^+\\pi^+$. For intermediate incident energies $T_p >$ 1 GeV, i.e. in the region which is beyond the Roper excitation but at the onset of $\\Delta\\Delta$ excitation, the total $pp\\pi^0\\pi^0$ cross section falls behind theoretical predictions by as much as an order of magnitude near 1.2 GeV, whereas the $nn\\pi^+\\pi^+$ cross section is a factor of five larger than predicted. An isospin decompostion of the total cross sections exhibits a s-channel-like energy dependence in the region of the Roper excitation as well as a significant contribution of an isospin 3/2 resonance other than the $\\Delta(1232)$. As possible candidates the $\\Delta(1600)$ and the $\\Delta(1700)$ are discussed.

  3. Two-pion production in proton-proton collisions — experimental total cross sections and their isospin decomposition

    Science.gov (United States)

    Skorodko, T.; Bashkanov, M.; Bogoslawsky, D.; Calén, H.; Clement, H.; Doroshkevich, E.; Demiroers, L.; Ekström, C.; Fransson, K.; Gustafsson, L.; Höistad, B.; Ivanov, G.; Jacewicz, M.; Jiganov, E.; Johansson, T.; Khakimova, O.; Keleta, S.; Koch, I.; Kren, F.; Kullander, S.; Kupść, A.; Marciniewski, P.; Meier, R.; Morosov, B.; Pauly, C.; Petrén, H.; Petukhov, Y.; Povtorejko, A.; Ruber, R. J. M. Y.; Schönning, K.; Scobel, W.; Shwartz, B.; Stepaniak, J.; Thörngren-Engblom, P.; Tikhomirov, V.; Wagner, G. J.; Wolke, M.; Yamamoto, A.; Zabierowski, J.; Zlomanczuk, J.

    2009-08-01

    The two-pion production in pp-collisions has been investigated at CELSIUS in exclusive measurements from threshold up to Tp = 1.36 GeV. Total and differential cross sections have been obtained for the channels pnπ+π0, ppπ+π-, ppπ0π0 and also nnπ+π+. For intermediate incident energies Tp > 1 GeV, i.e. in the region which is beyond the Roper excitation but at the onset of ΔΔ excitation, the total ppπ0π0 cross section falls behind theoretical predictions by as much as an order of magnitude near 1.2 GeV, whereas the nnπ+π+ cross section is a factor of five larger than predicted. An isospin decomposition of the total cross sections exhibits a s-channel-like energy dependence in the region of the Roper excitation as well as a significant contribution of an isospin 3/2 resonance other than the Δ (1232). As possible candidates the Δ (1600) and the Δ (1700) are discussed.

  4. Two-pion production in proton-proton collisions - experimental total cross sections and their isospin decomposition

    Energy Technology Data Exchange (ETDEWEB)

    Skorodko, T.; Bashkanov, M. [Physikalisches Institut der Universitaet Tuebingen, D-72076 Tuebingen (Germany); Bogoslawsky, D. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Calen, H. [Svedberg Laboratory, Uppsala (Sweden); Clement, H. [Physikalisches Institut der Universitaet Tuebingen, D-72076 Tuebingen (Germany)], E-mail: Clement@pit.physik.uni-tuebingen.de; Doroshkevich, E. [Physikalisches Institut der Universitaet Tuebingen, D-72076 Tuebingen (Germany); Demiroers, L. [Hamburg University, Hamburg (Germany); Ekstroem, C.; Fransson, K. [The Svedberg Laboratory, Uppsala (Sweden); Gustafsson, L.; Hoeistad, B. [Uppsala University, Uppsala (Sweden); Ivanov, G. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Jacewicz, M. [Uppsala University, Uppsala (Sweden); Jiganov, E. [Joint Institute for Nuclear Research, Dubna (Russian Federation); Johansson, T. [Uppsala University, Uppsala (Sweden); Khakimova, O. [Physikalisches Institut der Universitaet Tuebingen, D-72076 Tuebingen (Germany); Keleta, S.; Koch, I. [Uppsala University, Uppsala (Sweden); Kren, F. [Physikalisches Institut der Universitaet Tuebingen, D-72076 Tuebingen (Germany); Kullander, S. [Uppsala University, Uppsala (Sweden)] (and others)

    2009-08-10

    The two-pion production in pp-collisions has been investigated at CELSIUS in exclusive measurements from threshold up to T{sub p}=1.36 GeV. Total and differential cross sections have been obtained for the channels pn{pi}{sup +}{pi}{sup 0}, pp{pi}{sup +}{pi}{sup -}, pp{pi}{sup 0}{pi}{sup 0} and also nn{pi}{sup +}{pi}{sup +}. For intermediate incident energies T{sub p}>1 GeV, i.e. in the region which is beyond the Roper excitation but at the onset of {delta}{delta} excitation, the total pp{pi}{sup 0}{pi}{sup 0} cross section falls behind theoretical predictions by as much as an order of magnitude near 1.2 GeV, whereas the nn{pi}{sup +}{pi}{sup +} cross section is a factor of five larger than predicted. An isospin decomposition of the total cross sections exhibits a s-channel-like energy dependence in the region of the Roper excitation as well as a significant contribution of an isospin 3/2 resonance other than the {delta}(1232). As possible candidates the {delta}(1600) and the {delta}(1700) are discussed.

  5. Invited review: Experimental design, data reporting, and sharing in support of animal systems modeling research.

    Science.gov (United States)

    McNamara, J P; Hanigan, M D; White, R R

    2016-12-01

    The National Animal Nutrition Program "National Research Support Project 9" supports efforts in livestock nutrition, including the National Research Council's committees on the nutrient requirements of animals. Our objective was to review the status of experimentation and data reporting in animal nutrition literature and to provide suggestions for the advancement of animal nutrition research and the ongoing improvement of field-applied nutrient requirement models. Improved data reporting consistency and completeness represent a substantial opportunity to improve nutrition-related mathematical models. We reviewed a body of nutrition research; recorded common phrases used to describe diets, animals, housing, and environmental conditions; and proposed equivalent numerical data that could be reported. With the increasing availability of online supplementary material sections in journals, we developed a comprehensive checklist of data that should be included in publications. To continue to improve our research effectiveness, studies utilizing multiple research methodologies to address complex systems and measure multiple variables will be necessary. From the current body of animal nutrition literature, we identified a series of opportunities to integrate research focuses (nutrition, reproduction and genetics) to advance the development of nutrient requirement models. From our survey of current experimentation and data reporting in animal nutrition, we identified 4 key opportunities to advance animal nutrition knowledge: (1) coordinated experiments should be designed to employ multiple research methodologies; (2) systems-oriented research approaches should be encouraged and supported; (3) publication guidelines should be updated to encourage and support sharing of more complete data sets; and (4) new experiments should be more rapidly integrated into our knowledge bases, research programs and practical applications. Copyright © 2016 American Dairy Science Association

  6. Cross sections for electron collisions with dimethyl ether

    OpenAIRE

    Sugohara, RT; Homem, MGP; Iga, I; de Souza, GLC; MACHADO, LE; Ferraz, JR; dos Santos, AS; Brescansin, LM; Lucchese, RR; Lee, MT

    2013-01-01

    We report a joint theoretical-experimental investigation of electron collision with dimethyl ether (DME) in the low- and intermediate-energy ranges. Experimental absolute differential, integral, and momentum-transfer cross sections for elastic e(-)-DME scattering are reported in the 100-1000 eV energy range. Our measurements were performed using a crossed electron-beam-molecular-beam geometry. The angular distribution of the scattered electrons was converted to absolute cross section using th...

  7. Labeled experimental choice design for estimating attribute and availability cross effects with N attributes and specific brand attribute levels

    DEFF Research Database (Denmark)

    Nguyen, Thong Tien

    2011-01-01

    Experimental designs are required in widely used techniques in marketing research, especially for preference-based conjoint analysis and discrete-choice studies. Ideally, marketing researchers prefer orthogonal designs because this technique could give uncorrelated parameter estimates. However...

  8. Bio-climatic building of the cross-border experimental park of renewable energies of Badajoz; Edificio bioclimatico del parque experimental transfronterizo de energias renovables de Badajoz

    Energy Technology Data Exchange (ETDEWEB)

    Giancola, E.; Soutullo, S.; Monreal, M.; Ferrer, J. A.; Heras, M. R.

    2008-07-01

    Within the program of the E. U. of transfrontier cooperation INTERREG, it is being built a new Experimental Transfrontier Park of Renewable Energy (PETER) in the University of Extremadura (Badajoz) in Spain and in the University of Evora in Portugal. The building, which is located in Badajoz, will house laboratories for companies in the area of renewable energies. This building has been designed under parameters of energy efficiency since its design phase, applying concepts of environmental design and evaluation and providing support for the project design by means of simulation tools. (Author)

  9. Impulsivity in Multiplayer Online Battle Arena Gamers: Preliminary Results on Experimental and Self-Report Measures.

    Science.gov (United States)

    Nuyens, Filip; Deleuze, Jory; Maurage, Pierre; Griffiths, Mark D; Kuss, Daria J; Billieux, Joël

    2016-06-01

    Background and aims Multiplayer Online Battle Arena (MOBA) games have become the most popular type of video games played worldwide, superseding the playing of Massively Multiplayer Online Role-Playing Games and First-Person Shooter games. However, empirical studies focusing on the use and abuse of MOBA games are still very limited, particularly regarding impulsivity, which is an indicator of addictive states but has not yet been explored in MOBA games. In this context, the objective of the present study is to explore the associations between impulsivity and symptoms of addictive use of MOBA games in a sample of highly involved League of Legends (LoL, currently the most popular MOBA game) gamers. Methods Thirty-six LoL gamers were recruited and completed both experimental (Single Key Impulsivity Paradigm) and self-reported impulsivity assessments (s-UPPS-P Impulsive Behavior Scale, Barratt Impulsiveness Scale), in addition to an assessment of problematic video game use (Problematic Online Gaming Questionnaire). Results Results showed links between impulsivity-related constructs and signs of excessive MOBA game involvement. Findings indicated that impaired ability to postpone rewards in an experimental laboratory task was strongly related to problematic patterns of MOBA game involvement. Although less consistent, several associations were also found between self-reported impulsivity traits and signs of excessive MOBA game involvement. Conclusions Despite these results are preliminary and based upon a small (self-selected) sample, the present study highlights potential psychological factors related to the addictive use of MOBA games.

  10. Theoretical and experimental studies of fixed-bed coal gasification reactors. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Joseph, B.; Bhattacharya, A.; Salam, L.; Dudukovic, M.P.

    1983-09-01

    A laboratory fixed-bed gasification reactor was designed and built with the objective of collecting operational data for model validation and parameter estimation. The reactor consists of a 4 inch stainless steel tube filled with coal or char. Air and steam is fed at one end of the reactor and the dynamic progress of gasification in the coal or char bed is observed through thermocouples mounted at various radial and axial locations. Product gas compositions are also monitored as a function of time. Results of gasification runs using Wyoming coal are included in this report. In parallel with the experimental study, a two-dimensional model of moving bed gasifiers was developed, coded into a computer program and tested. This model was used to study the laboratory gasifier by setting the coal feed rate equal to zero. The model is based on prior work on steady state and dynamic modeling done at Washington University and published elsewhere in the literature. Comparisons are made between model predictions and experimental results. These are also included in this report. 23 references, 18 figures, 6 tables.

  11. Primary retroperitoneal teratoma and crossed fused renal ectopia with turner's syndrome -a case report-

    Energy Technology Data Exchange (ETDEWEB)

    Kim, Yun Jung; Hong, Ki Ung [St. Francisco General Hospital, New York (United States)

    1988-02-15

    In 1938, Turner described a clinical entity in phenotype females characterized by sexual infantilism, congenital webbed neck and cubitus valgus. After then, the occurrence of renal anomalies in patients with Turner's syndrome has been recognized. Associated crossed fused renal ectopia is very rare. Primary retroperitoneal teratoma is also rare and usually during childhood. The authors report a case of primary retroperitoneal teratoma and crossed fused renal ectopia with Turner's syndrome (mosaic type). The clinical, pathological and radiographical findings are reviewed.

  12. Renal stone in crossed fused renal ectopia and its laparoscopic management: Case report and review of literature

    Directory of Open Access Journals (Sweden)

    Santosh Agrawal

    2016-01-01

    Full Text Available Management of renal stone in crossed fused renal ectopia (CFRE is difficult because of abnormal location, malrotation, and its relations with vertebral column and small bowel. Management is not standardized because of the paucity of literature and variable anatomy. We managed an 8-year-old boy with multiple renal stones in right side crossed kidney by laparoscopic pyelolithotomy and nephro pyeloscopy with the help of ureteroscope. Until now, there is only one prior report of laparoscopic pyelolithotomy in CFRE. We share our experience in this case and review the literature regarding the management of kidney stones in this rare anomaly.

  13. Constructing experimental designs for discrete-choice experiments: report of the ISPOR Conjoint Analysis Experimental Design Good Research Practices Task Force.

    Science.gov (United States)

    Reed Johnson, F; Lancsar, Emily; Marshall, Deborah; Kilambi, Vikram; Mühlbacher, Axel; Regier, Dean A; Bresnahan, Brian W; Kanninen, Barbara; Bridges, John F P

    2013-01-01

    Stated-preference methods are a class of evaluation techniques for studying the preferences of patients and other stakeholders. While these methods span a variety of techniques, conjoint-analysis methods-and particularly discrete-choice experiments (DCEs)-have become the most frequently applied approach in health care in recent years. Experimental design is an important stage in the development of such methods, but establishing a consensus on standards is hampered by lack of understanding of available techniques and software. This report builds on the previous ISPOR Conjoint Analysis Task Force Report: Conjoint Analysis Applications in Health-A Checklist: A Report of the ISPOR Good Research Practices for Conjoint Analysis Task Force. This report aims to assist researchers specifically in evaluating alternative approaches to experimental design, a difficult and important element of successful DCEs. While this report does not endorse any specific approach, it does provide a guide for choosing an approach that is appropriate for a particular study. In particular, it provides an overview of the role of experimental designs for the successful implementation of the DCE approach in health care studies, and it provides researchers with an introduction to constructing experimental designs on the basis of study objectives and the statistical model researchers have selected for the study. The report outlines the theoretical requirements for designs that identify choice-model preference parameters and summarizes and compares a number of available approaches for constructing experimental designs. The task-force leadership group met via bimonthly teleconferences and in person at ISPOR meetings in the United States and Europe. An international group of experimental-design experts was consulted during this process to discuss existing approaches for experimental design and to review the task force's draft reports. In addition, ISPOR members contributed to developing a consensus

  14. Self-Report Data in Cross-Cultural Research: Issues of Construct Validity in Questionnaires for Quantitative Research in Educational Leadership

    Science.gov (United States)

    Thomas, Andrew

    2007-01-01

    This paper examines issues arising from the use of self-report questionnaires in cross-cultural contexts. The research draws from the extensive literature on cross-cultural leadership in business organizational culture as well as from educational cross-cultural contexts. It examines claims, drawn from business and educational contexts, that many…

  15. Experimental study of Counter-Rotating Vortex Pair Trajectories induced by a Round Jet in Cross-Flow at Low Velocity Ratios

    CERN Document Server

    Cambonie, T; Aider, J -L

    2013-01-01

    Circular flush Jets In Cross-Flow were experimentally studied in a water tunnel using Volumetric Particle Tracking Velocimetry, for a range of jet to cross-flow velocity ratios, r, from 0.5 to 3, jet exit diameters $d$ from 0.8 cm to 1 cm and cross-flow boundary layer thickness delta from 1 to 2.5 cm. The analysis of the 3D mean velocity fields allows for the definition, computation and study of Counter-rotating Vortex Pair trajectories. The influences of r, d and delta were investigated. A new scaling based on momentum ratio r_m taking into account jet and cross-flow momentum distributions is introduced based on the analysis of jet trajectories published in the literature. Using a rigorous scaling quality factor Q to quantify how well a given scaling successfully collapses trajectories, we show that the proposed scaling also improves the collapse of CVP trajectories, leading to a final scaling law for these trajectories.

  16. Labeled experimental choice design for estimating attribute and availability cross effects with N attributes and specific brand attribute levels

    DEFF Research Database (Denmark)

    Nguyen, Thong Tien

    2011-01-01

    , orthogonal design is not available for every situation. Instead, efficient design based on computerized design algorithm is always available. This paper presents the method of efficient design for estimating brand models having attribute and availability cross effects. The paper gives a framework...... for implementing designs that is efficient enough to estimate model with N brands, each brand have K attributes, and brand attribute has specific levels. The paper also illustrates an example in food consumption study....

  17. Experimental Verification of Neutron Phenomenology in Lead and Transmutation by Adiabatic Resonance Crossing in Accelerator Driven Systems

    CERN Document Server

    Abánades, A; Andriamonje, Samuel A; Angelopoulos, Angelos; Apostolakis, Alcibiades J; Arnould, H; Belle, E; Bompas, C A; Brozzi, Delecurgo; Bueno, J; Buono, S; Carminati, F; Casagrande, Federico; Cennini, P; Collar, J I; Cerro, E; Del Moral, R; Díez, S; Dumps, Ludwig; Eleftheriadis, C; Embid, M; Fernández, R; Gálvez, J; García, J; Gelès, C; Giorni, A; González, E; González, O; Goulas, I; Heuer, R D; Hussonnois, M; Kadi, Y; Karaiskos, P; Kitis, G; Klapisch, Robert; Kokkas, P; Lacoste, V; Le Naour, C; López, C; Loiseaux, J M; Martínez-Val, J M; Méplan, O; Nifenecker, H; Oropesa, J; Papadopoulos, I M; Pavlopoulos, P; Pérez-Enciso, E; Pérez-Navarro, A; Perlado, M; Placci, Alfredo; Poza, M; Revol, Jean Pierre Charles; Rubbia, Carlo; Rubio, Juan Antonio; Sakelliou, L; Saldaña, F; Savvidis, E; Schussler, F; Sirvent, C; Tamarit, J; Trubert, D; Tzima, A; Viano, J B; Vieira, S L; Vlachoudis, V; Zioutas, Konstantin

    1999-01-01

    Energy and space distributions of spallation neutrons (from 2.5 and 3.57 GeV/c CERN proton beams) slowing down in a 3.3 x 3.3 x 3 m3 lead volume and neutron capture rates on long-lived fission fragments 99 Tc and 129 I demonstrate that Adiabatic Resonance Crossing (ARC) can be used to eliminate efficiently such nuclear waste and validate innovative simulation.

  18. Experimental verification of neutron phenomenology in lead and transmutation by adiabatic resonance crossing in accelerator driven systems

    CERN Document Server

    Arnould, H; Del Moral, R; Lacoste, V; Vlachoudis, V; Aleixandre, J; Bueno, J; Cerro, E; González, O; Tamarit, J; Andriamonje, Samuel A; Brozzi, Delecurgo; Buono, S; Carminati, F; Casagrande, Federico; Cennini, P; Collar, J I; Dumps, Ludwig; Gelès, C; Goulas, I; Fernández, R; Kadi, Y; Klapisch, Robert; Oropesa, J; Placci, Alfredo; Revol, Jean Pierre Charles; Rubbia, Carlo; Rubio, Juan Antonio; Saldaña, F; Embid, M; Gálvez, J; López, C; Pérez-Enciso, E; Poza, M; Sirvent, C; Vieira, S L; Abánades, A; García, J; Martínez-Val, J M; Perlado, M; González, E; Hussonnois, M; Le Naour, C; Trubert, D; Belle, E; Giorni, A; Heuer, R D; Loiseaux, J M; Méplan, O; Nifenecker, H; Schussler, F; Viano, J B; Angelopoulos, Angelos; Apostolakis, Alcibiades J; Karaiskos, P; Sakelliou, L; Kokkas, P; Pavlopoulos, P; Eleftheriadis, C; Kitis, G; Papadopoulos, I M; Savvidis, E; Tzima, A; Zioutas, Konstantin; Díez, S; Pérez-Navarro, A

    1999-01-01

    Energy and space distributions of spallation neutrons (from 2.5 and 3.57 GeV/c CERN proton beams) slowing down in a 3.3*3.3*3 m/sup 3/ lead volume and neutron capture rates on long-lived fission fragments /sup 99/Tc and /sup 129/I demonstrate that Adiabatic Resonance Crossing (ARC) can be used to eliminate efficiently such nuclear waste and validate innovative simulation. (17 refs).

  19. Self-replenishing ability of cross-linked low surface energy polymer films investigated by a complementary experimental-simulation approach

    Science.gov (United States)

    Esteves, A. C. C.; Lyakhova, K.; van Riel, J. M.; van der Ven, L. G. J.; van Benthem, R. A. T. M.; de With, G.

    2014-03-01

    Nowadays, many self-healing strategies are available for recovering mechanical damage of bulk polymeric materials. The recovery of surface-dependent functionalities on polymer films is, however, equally important and has been less investigated. In this work we study the ability of low surface energy cross-linked poly(ester urethane) networks containing perfluorinated dangling chains to self-replenish their surface, after being submitted to repeated surface damage. For this purpose we used a combined experimental-simulation approach. Experimentally, the cross-linked films were intentionally damaged by cryo-microtoming to remove top layers and create new surfaces which were characterized by water Contact Angle measurements and X-Ray Photoelectron Spectroscopy. The same systems were simultaneously represented by a Dissipative Particles Dynamics simulation method, where the damage was modeled by removing the top film layers in the simulation box and replacing it by new "air" beads. The influence of different experimental parameters, such as the concentration of the low surface energy component and the molecular mobility span of the dangling chains, on the surface recovery is discussed. The combined approach reveals important details of the self-replenishing ability of damaged polymer films such as the occurrence of multiple-healing events, the self-replenishing efficiency, and the minimum "healing agent" concentration for a maximum recovery.

  20. Body integrity identity disorder crosses culture: case reports in the Japanese and Chinese literature

    Directory of Open Access Journals (Sweden)

    Blom RM

    2016-06-01

    Full Text Available Rianne M Blom,1 Nienke C Vulink,1 Sija J van der Wal,1 Takashi Nakamae,1–3 Zhonglin Tan,1,4 Eske M Derks,1 Damiaan Denys1,5 1Department of Psychiatry, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands; 2Department of Psychiatry, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, 3Department of Neural Computation for Decision-Making, ATR Brain Information Communication Research Laboratory Group, Kyoto, Japan; 4Department of Psychiatry, Hangzhou Mental Health Center, Hangzhou, People’s Republic of China; 5Netherlands Institute for Neuroscience, Royal Netherlands Academy of Arts and Sciences, Amsterdam, the Netherlands Abstract: Body integrity identity disorder (BIID is a condition in which people do not perceive a part of their body as their own, which results in a strong desire for amputation or paralyzation. The disorder is likely to be congenital due to its very early onset. The English literature describes only Western patients with BIID, suggesting that the disorder might be merely prevalent in the West. To scrutinize this assumption, and to extend our knowledge of the etiology of BIID, it is important to trace cases with BIID in non-Western populations. Our objective was to review Chinese and Japanese literature on BIID to learn about its presence in populations with a different genetic background. A systematic literature search was performed in databases containing Japanese and Chinese research, published in the respective languages. Five Japanese articles of BIID were identified which described two cases of BIID, whereas in the Chinese databases only BIID-related conditions were found. This article reports some preliminary evidence that BIID is also present in non-Western countries. However, making general statements about the biological background of the disorder is hampered by the extremely low number of cases found. This low number possibly resulted from the extreme secrecy

  1. Experimental deuteron cross section measurements using single natural titanium foils from 3 to 9 MeV with special reference to the production of {sup 47}V and {sup 51}Ti

    Energy Technology Data Exchange (ETDEWEB)

    Gagnon, K., E-mail: kgagnon@phys.ualberta.c [Edmonton PET Centre, Cross Cancer Institute, University of Alberta, 11560 University Avenue, Edmonton, Alberta, T6G 1Z2 (Canada); Avila-Rodriguez, M.A. [Unidad PET/CT-Ciclotron, Facultad de Medicina, Universidad Nacional Autonoma de Mexico, Edificio de Investigacion P.B., Cd. Universitaria, Circ. Interior, C.P. 04510, Mexico D.F. (Mexico); Wilson, J.; McQuarrie, S.A. [Edmonton PET Centre, Cross Cancer Institute, University of Alberta, 11560 University Avenue, Edmonton, Alberta, T6G 1Z2 (Canada)

    2010-05-01

    Although the conventional stacked foil technique is the common method for evaluating experimental cross sections of deuteron induced reactions on titanium, this work employed a single foil irradiation strategy. This strategy was selected for the purpose of improving the counting statistics for the reactions with low activation probabilities as it allowed for activity assay times comparable to the half-life of the product of interest. Given a single detector, similar activity assay times were not possible for the stacked foil technique as all remaining foils would have otherwise decayed significantly while the first foil was counting. To the best of our knowledge, this work reports the first comprehensive study of the elemental cross sections for production of {sup 47}V (t{sub 1/2} = 32.6 m) and {sup 51}Ti (t{sub 1/2} = 5.76 m) for 3-9 MeV deuterons on natural titanium foil. Elemental cross sections for the production of {sup 44g,44m,46,47,48}Sc, and {sup 48}V were also evaluated, with good agreement to previous literature generally observed.

  2. ITER (International Thermonuclear Experimental Reactor) shield and blanket work package report

    Energy Technology Data Exchange (ETDEWEB)

    1988-06-01

    This report summarizes nuclear-related work in support of the US effort for the International Thermonuclear Experimental Reactor (ITER) Study. The purpose of this work was to prepare for the first international ITER workshop devoted to defining a basic ITER concept that will serve as a basis for an indepth conceptual design activity over the next 2-1/2 years. Primary tasks carried out during the past year included: design improvements of the inboard shield developed for the TIBER concept, scoping studies of a variety of tritium breeding blanket options, development of necessary design guidelines and evaluation criteria for the blanket options, further safety considerations related to nuclear components and issues regarding structural materials for an ITER device. 44 refs., 31 figs., 29 tabs.

  3. Experimental studies of pion-nucleus interactions at intermediate energies. Annual progress report

    Energy Technology Data Exchange (ETDEWEB)

    1992-12-31

    This report summarizes investigations of various pion-nucleus interactions and nucleon-nucleus charge-exchange reactions. The work was carried out with the LAMPF accelerator at the Los Alamos National Laboratory and the cyclotrons at the Paul Scherrer Institute (PSI) near Zurich, Switzerland, and at Indiana University (IUCF), as a collaborative effort among several laboratories and universities. The experimental activity at LAMPF involved measurements of new data on pion double-charge-exchange scattering, some initial work on a new Neutral Meson Spectrometer system, a search for deeply-bound pionic atoms, measurements of elastic scattering, and studies of the (n,p) reaction on various nuclei. At PSI measurements of pion quasielastic scattering were carried out, with detection of the recoil proton. Work on the analysis of data from a previous experiment at PSI on pion absorption in nuclei was continued. This experiment involved using a detector system that covered nearly the full solid angle.

  4. Final report of experimental laboratory-scale brittle fracture studies of glasses and ceramics

    Energy Technology Data Exchange (ETDEWEB)

    Jardine, L.J.; Mecham, W.J.; Reedy, G.T.; Steindler, M.J.

    1982-10-01

    An experimental program was conducted to characterize the fragments generated when brittle glasses and ceramics are impacted. The direct application of the results is to radioactive waste forms for which the effects of accidental impacts must be known or predictable. Two major measurable experimental responses used for characterization of these effects are (1) the size distribution of the fragments, including the sizes that are respirable, and (2) the increase in surface area of the brittle test specimen. This report describes the glass and ceramic materials characterized, the procedures and techniques used for the characterization of size distributions and surface areas, and the results of the two key responses of the impact tests. Five alternative methods of determining size distributions were compared. Also examined were the effects of diametral and axial specimen impact configurations and the use of mechanical stops to eliminate secondary crushing during testing. Microscopic characterizations of Pyrex and SRL 131 simulated waste glass and SYNROC fragments were also performed. Preliminary correlations of impact energy with key size-distribution parameters, fragment surface areas, and respirable fines were proposed as useful for future verification and for use with modeling and scale-up studies of brittle fracture of larger realistic waste forms. The impact fragments of all specimens could be described by lognormal size distributions.

  5. Cross-arm replantation for traumatic bilateral upper extremity amputations: a case report.

    Science.gov (United States)

    Liang, Kailu; Zhong, Gang; Yin, Jiahui; Xiang, Zhou; Cen, Shiqiang; Huang, Fuguo

    2011-02-01

    A 40-year-old woman had her right extremity avulsed at the proximal upper arm level and the wrist and hand of her left extremity irretrievably injured in a traffic accident. The right distal forearm was surgically amputated and replanted onto the stump of the left distal forearm. New strategy for nerve repair was applied and the function recovery of the cross-replanted hand was favorable. We thought that cross-extremity replantation was indicated when the patient suffered from bilateral total or subtotal amputation at different levels and orthotopic replantation was impossible.

  6. Women With Addictions Report Reduced Anxiety After Group Music Therapy: A Quasi-Experimental Study

    Directory of Open Access Journals (Sweden)

    Wiebke S. Diestelkamp

    2013-07-01

    Full Text Available Roughly six million females in the USA abuse or are addicted to alcohol. Women are more likely than men to report depression and anxiety as triggers for substance use and relapse, which emphasizes the importance of therapies designed to help women mitigate anxiety.Research supporting music therapy (MT with women with addictions is scarce. In this quasi-experimental investigation, we hoped to learn: (1 What percentage of women with addictive disorders in a 45-minute group MT session will report pre-session anxiety?; and (2 of these, what percentage will report a palpable reduction in their post-session anxiety? We used a single group design: Participants self-reported anxiety before and after each session.Study participants were 53 women in a gender-specific residential program. Voluntary group MT sessions were held twice weekly for 9 weeks. Four MT methods were used: Composition, Receptive (Listening, Improvisation, and Re-Creative (Performing. Of 53 first-session surveys, 39 (73.6% indicated pre-session anxiety. Of these, 33 (84.6% showed a reduction in post-session anxiety. A sign test confirmed an overall reduction in anxiety.Outcomes may have been related to interventions, group cohesion, or other factors. The absence of a comparison group prevents suppositions of causality. Nonetheless, the results present a compelling case for the use of MT with women with anxiety. Because of the link between trauma and addictive disorders, we encourage exploration of the role and benefits of MT within trauma-informed models of addiction treatment.

  7. EBIT (Electron Beam Ion Trap), N-Division Experimental Physics. Annual report, 1994

    Energy Technology Data Exchange (ETDEWEB)

    Schneider, D. [ed.

    1995-10-01

    The experimental groups in the Electron Beam Ion Trap (EBIT) program continue to perform front-line research with trapped and extracted highly charged ions (HCI) in the areas of ion/surface interactions, atomic spectroscopy, electron-ion interaction and structure measurements, highly charged ion confinement, and EBIT development studies. The ion surface/interaction studies which were initiated five years ago have reached a stage where they an carry out routine investigations, as well as produce breakthrough results towards the development of novel nanotechnology. At EBIT and SuperEBIT studies of the x-ray emission from trapped ions continue to produce significant atomic structure data with high precision for few electron systems of high-Z ions. Furthermore, diagnostics development for magnetic and laser fusion, supporting research for the x-ray laser and weapons programs, and laboratory astrophysics experiments in support of NASA`s astrophysics program are a continuing effort. The two-electron contributions to the binding energy of helium like ions were measured for the first time. The results are significant because their precision is an order of magnitude better than those of competing measurements at accelerators, and the novel technique isolates the energy corrections that are the most interesting. The RETRAP project which was initiated three years ago has reached a stage where trapping, confining and electronic cooling of HCI ions up to Th{sup 80+} can be performed routinely. Measurements of the rates and cross sections for electron transfer from H{sub 2} performed to determine the lifetime of HCI up to Xe{sup q+} and Th{sup q+} (35 {le} q {le} 80) have been studied at mean energies estimated to be {approximately} 5 q eV. This combination of heavy ions with very high charges and very low energies is rare in nature, but may be encountered in planned fusion energy demonstration devices, in highly charged ion sources, or in certain astrophysical events.

  8. CXCR3/CXCL10 Axis Regulates Neutrophil-NK Cell Cross-Talk Determining the Severity of Experimental Osteoarthritis.

    Science.gov (United States)

    Benigni, Giorgia; Dimitrova, Petya; Antonangeli, Fabrizio; Sanseviero, Emilio; Milanova, Viktoriya; Blom, Arjen; van Lent, Peter; Morrone, Stefania; Santoni, Angela; Bernardini, Giovanni

    2017-03-01

    Several immune cell populations are involved in cartilage damage, bone erosion, and resorption processes during osteoarthritis. The purpose of this study was to investigate the role of NK cells in the pathogenesis of experimental osteoarthritis and whether and how neutrophils can regulate their synovial localization in the disease. Experimental osteoarthritis was elicited by intra-articular injection of collagenase in wild type and Cxcr3(-/-) 8-wk old mice. To follow osteoarthritis progression, cartilage damage, synovial thickening, and osteophyte formation were measured histologically. To characterize the inflammatory cells involved in osteoarthritis, synovial fluid was collected early after disease induction, and the cellular and cytokine content were quantified by flow cytometry and ELISA, respectively. We found that NK cells and neutrophils are among the first cells that accumulate in the synovium during osteoarthritis, both exerting a pathogenic role. Moreover, we uncovered a crucial role of the CXCL10/CXCR3 axis, with CXCL10 increasing in synovial fluids after injury and Cxcr3(-/-) mice being protected from disease development. Finally, in vivo depletion experiments showed that neutrophils are involved in an NK cell increase in the synovium, possibly by expressing CXCL10 in inflamed joints. Thus, neutrophils and NK cells act as important disease-promoting immune cells in experimental osteoarthritis and their functional interaction is promoted by the CXCL10/CXCR3 axis.

  9. Study Report of Design Guide for Tube Arrays in Cross Flow

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    Part of fluid energy transfers to the cylinders, when the fluid flows away the cylinders, and creates the vibration of them. The vibration of cylinders caused by the cross flow is much more violent than that caused by axial flow. So the sufficient concern should be given

  10. Cross-National Adolescent Multidimensional Life Satisfaction Reports: Analyses of Mean Scores and Response Style Differences

    Science.gov (United States)

    Gilman, Rich; Huebner, E. Scott; Tian, Lili; Park, Nansook; O'Byrne, Jenny; Schiff, Miriam; Sverko, Dina; Langknecht, Heather

    2008-01-01

    Although numerous cross-national studies have assessed life satisfaction among adults, similar studies using adolescent samples have been rare. To address this shortage of research, a total of 1338 youth adolescents from two individualistic nations (Ireland, USA) and two collectivistic nations (China, South Korea) were administered the…

  11. Cross-flow turbines: progress report on physical and numerical model studies at large laboratory scale

    Science.gov (United States)

    Wosnik, Martin; Bachant, Peter

    2016-11-01

    Cross-flow turbines show potential in marine hydrokinetic (MHK) applications. A research focus is on accurately predicting device performance and wake evolution to improve turbine array layouts for maximizing overall power output, i.e., minimizing wake interference, or taking advantage of constructive wake interaction. Experiments were carried with large laboratory-scale cross-flow turbines D O (1 m) using a turbine test bed in a large cross-section tow tank, designed to achieve sufficiently high Reynolds numbers for the results to be Reynolds number independent with respect to turbine performance and wake statistics, such that they can be reliably extrapolated to full scale and used for model validation. Several turbines of varying solidity were employed, including the UNH Reference Vertical Axis Turbine (RVAT) and a 1:6 scale model of the DOE-Sandia Reference Model 2 (RM2) turbine. To improve parameterization in array simulations, an actuator line model (ALM) was developed to provide a computationally feasible method for simulating full turbine arrays inside Navier-Stokes models. Results are presented for the simulation of performance and wake dynamics of cross-flow turbines and compared with experiments and body-fitted mesh, blade-resolving CFD. Supported by NSF-CBET Grant 1150797, Sandia National Laboratories.

  12. Rapid report acetamiprid resistance and cross-resistance in the diamondback moth, Plutella xylostella.

    Science.gov (United States)

    Ninsin, Kodwo D

    2004-09-01

    A 110-fold acetamiprid-resistant Plutella xylostella (L) strain was established after four selection experiments (in five generations) on a 9.5-fold resistant colony in the laboratory. The resistant strain did not show cross-resistance to chlorfluazuron or Bacillus thuringiensis subsp kurstaki Berliner, but displayed low resistance to cartap and phenthoate.

  13. DoD Components Did Not Properly Use the Acquisition and Cross Service Agreement Automated Tracking and Reporting System

    Science.gov (United States)

    2016-03-24

    DIRECTOR, DEFENSE FINANCE AND ACCOUNTING SERVICE DIRECTOR, JOINT STAFF NAVAL INSPECTOR GENERAL AUDITOR GENERAL , DEPARTMENT OF THE ARMY DODIG-2016-067...I N T E G R I T Y  E F F I C I E N C Y  A C C O U N TA B I L I T Y  E XC E L L E N C E Inspector General U.S. Department of Defense DoD...Components Did Not Properly Use the Acquisition and Cross Service Agreement Automated Tracking and Reporting System M A R C H 2 4 , 2 0 1 6 Report

  14. Aortic Compression and Cross Clamping in a Case of Placenta Percreta and Amniotic Fluid Embolism: A Case Report

    Directory of Open Access Journals (Sweden)

    Michael A. Belfort

    2011-09-01

    Full Text Available Amniotic fluid embolism (AFE, also known as anaphylactoid syndrome of pregnancy at the time of surgery for placenta percreta has been previously reported. We report here a case in which AFE and associated cardiac arrest occurred following a hysterectomy for placenta percreta. In this case, subhepatic manual aortic compression during the cardiac arrest and chest compressions followed by infrarenal aortic cross-clamping during volume infusion and reversal of the coagulopathy were associated with a successful resuscitation and good maternal outcome.

  15. Design of the Grimethorpe Experimental Facility as of March 1981: a technical report

    Energy Technology Data Exchange (ETDEWEB)

    1984-06-01

    The Experimental Pressurized Fluidized Bed Combustor, which has been built as an extension to the National Coal Board Power Station, which is adjacent to Grimethorpe Colliery, Yorkshire, England, is described in this report. The Governments of the United Kingdom, the United States of America and the Federal Republic of Germany, under the auspices of the International Energy Agency, have agreed to share equally between them the costs of building and operating the plant. Control of the project was vested in an Executive Committee consisting of one representative of each Government with all decisions requiring unanimity. The actual operation of the project was vested in an Operating Agent, NCB (IEA Services) Ltd., a wholly owned subsidiary of the National Coal Board. The Implementing Agreement envisages a seven year project to be executed in four stages: (1) Procurement of Design Study with accompanying tender documents. (2) Tendering for construction of the Plant; study of appraisal of tenders. (3) Construction and acceptance of the Plant. (4) Operation of the Plant. The project is now towards the end of Stage 3. Construction has been completed and commissioning is in progress to prepare the plant for the start of the operational phase in Autumn 1981. Because of the confidentiality of much of the design information, for the purposes of this report technical descriptions have been confined to that of a general appraisal.

  16. Heavy Rydberg Photo-dissociation Cross-section Calculations and Experimental Progress Towards Cold Collisions in Lithium

    CERN Document Server

    Ugray, Lisa Madeleine

    2013-01-01

    This thesis is divided into two parts, each of which supports constructing and using a lithium magneto-optical trap for cold collision studies: Part I: One outgoing channel of interest from cold collisions is the production of ion pairs. We describe an effective method for calculating bound-to-continuum cross-sections for charged binary systems by examining transitions to states above the binding energy that become bound when the system is placed within an infinite spherical well. This approach is verified for ionization of a hydrogen atom, and is then applied to the heavy Rydberg system Li+...I-. Part II: A wavemeter previously built in the lab is redesigned for increased reliability and ease of use by replacing the optical hardware with a rocker system, which can be aligned in mere minutes rather than half a day as was previously the case. The new wavemeter has been tested through saturated absorption spectroscopy of lithium.

  17. Cross-Informant Agreement between Parent-Reported and Adolescent Self-Reported Problems in 25 Societies

    Science.gov (United States)

    Rescorla, Leslie A.; Ginzburg, Sofia; Achenbach, Thomas M.; Ivanova, Masha Y.; Almqvist, Fredrik; Begovac, Ivan; Bilenberg, Niels; Bird, Hector; Chahed, Myriam; Dobrean, Anca; Dopfner, Manfred; Erol, Nese; Hannesdottir, Helga; Kanbayashi, Yasuko; Lambert, Michael C.; Leung, Patrick W. L.; Minaei, Asghar; Novik, Torunn S.; Oh, Kyung-Ja; Petot, Djaouida; Petot, Jean-Michel; Pomalima, Rolando; Rudan, Vlasta; Sawyer, Michael; Simsek, Zeynep; Steinhausen, Hans-Christoph; Valverde, Jose; van der Ende, Jan; Weintraub, Sheila; Metzke, Christa Winkler; Wolanczyk, Tomasz; Zhang, Eugene Yuqing; Zukauskiene, Rita; Verhulst, Frank C.

    2013-01-01

    We used population sample data from 25 societies to answer the following questions: (a) How consistently across societies do adolescents report more problems than their parents report about them? (b) Do levels of parent-adolescent agreement vary among societies for different kinds of problems? (c) How well do parents and adolescents in different…

  18. Experimental constraints on the γ-ray strength function in 90Zr using partial cross sections of the Y89(p,γZr90 reaction

    Directory of Open Access Journals (Sweden)

    L. Netterdon

    2015-05-01

    Full Text Available Partial cross sections of the Y89(p,γZr90 reaction have been measured to investigate the γ-ray strength function in the neutron–magic nucleus 90Zr. For five proton energies between Ep=3.65 MeV and Ep=4.70 MeV, partial cross sections for the population of seven discrete states in 90Zr have been determined by means of in-beam γ-ray spectroscopy. Since these γ-ray transitions are dominantly of E1 character, the present measurement allows an access to the low-lying dipole strength in 90Zr. A γ-ray strength function based on the experimental data could be extracted, which is used to describe the total and partial cross sections of this reaction by Hauser–Feshbach calculations successfully. Significant differences with respect to previously measured strength functions from photoabsorption data point towards deviations from the Brink–Axel hypothesis relating the photo-excitation and de-excitation strength functions.

  19. Association between Self-Reported Bruxism and Sleeping Patterns among Dental Students in Saudi Arabia: A Cross-Sectional Study.

    Science.gov (United States)

    Shokry, Shereen M; El Wakeel, Eman E; Al-Maflehi, Nassr; RasRas, Zaheera; Fataftah, Nida; Abdul Kareem, Enam

    2016-01-01

    Objectives. The aim of this cross-sectional study was to identify sleeping patterns among dental students and their association with self-reported bruxism in Riyadh Colleges of Dentistry and Pharmacy (RCsDP). Methods. A cross-sectional study was performed including 549 students (67 men and 482 women). A structured questionnaire was adopted from The PSQI (The Pittsburgh Sleep Questionnaire Index) used for data collection. It included questions which are categorized into sleeping habits, sleep-related symptoms, and additional questions concerning bruxism. This questionnaire was randomly distributed among all college preclinical and postclinical students. Sleep bruxism diagnosis was based on self-reported data. The data were analyzed using Chi-square tests through SPSS software for Windows. Results. Statistical analyses revealed significant correlations between self-reported bruxism and sleeping habits including sleep initiation (χ (2) = 22.6, p = 0.000), continuous sleep until morning (χ (2) = 19.2, p = 0.001), nighttime sleep duration (χ (2) = 20.2, p = 0.000), and length of daytime naps (χ (2) = 28.35, p = 0.000). There was an association between self-reported bruxism and sleeping-related symptoms including awakening early in the morning before the usual time without a cause (χ (2) = 16.52, p = 0.000) and increased nightmares (χ (2) = 13.7, p = 0.001). Conclusions. Poor sleeping pattern was an important factor among dental students, who reported sleep bruxism.

  20. Association between Self-Reported Bruxism and Sleeping Patterns among Dental Students in Saudi Arabia: A Cross-Sectional Study

    Directory of Open Access Journals (Sweden)

    Shereen M. Shokry

    2016-01-01

    Full Text Available Objectives. The aim of this cross-sectional study was to identify sleeping patterns among dental students and their association with self-reported bruxism in Riyadh Colleges of Dentistry and Pharmacy (RCsDP. Methods. A cross-sectional study was performed including 549 students (67 men and 482 women. A structured questionnaire was adopted from The PSQI (The Pittsburgh Sleep Questionnaire Index used for data collection. It included questions which are categorized into sleeping habits, sleep-related symptoms, and additional questions concerning bruxism. This questionnaire was randomly distributed among all college preclinical and postclinical students. Sleep bruxism diagnosis was based on self-reported data. The data were analyzed using Chi-square tests through SPSS software for Windows. Results. Statistical analyses revealed significant correlations between self-reported bruxism and sleeping habits including sleep initiation (χ2=22.6, p=0.000, continuous sleep until morning (χ2=19.2, p=0.001, nighttime sleep duration (χ2=20.2, p=0.000, and length of daytime naps (χ2=28.35, p=0.000. There was an association between self-reported bruxism and sleeping-related symptoms including awakening early in the morning before the usual time without a cause (χ2=16.52, p=0.000 and increased nightmares (χ2=13.7, p=0.001. Conclusions. Poor sleeping pattern was an important factor among dental students, who reported sleep bruxism.

  1. Association between Self-Reported Bruxism and Sleeping Patterns among Dental Students in Saudi Arabia: A Cross-Sectional Study

    Science.gov (United States)

    Shokry, Shereen M.; El Wakeel, Eman E.; Al-Maflehi, Nassr; RasRas, Zaheera; Fataftah, Nida; Abdul Kareem, Enam

    2016-01-01

    Objectives. The aim of this cross-sectional study was to identify sleeping patterns among dental students and their association with self-reported bruxism in Riyadh Colleges of Dentistry and Pharmacy (RCsDP). Methods. A cross-sectional study was performed including 549 students (67 men and 482 women). A structured questionnaire was adopted from The PSQI (The Pittsburgh Sleep Questionnaire Index) used for data collection. It included questions which are categorized into sleeping habits, sleep-related symptoms, and additional questions concerning bruxism. This questionnaire was randomly distributed among all college preclinical and postclinical students. Sleep bruxism diagnosis was based on self-reported data. The data were analyzed using Chi-square tests through SPSS software for Windows. Results. Statistical analyses revealed significant correlations between self-reported bruxism and sleeping habits including sleep initiation (χ2 = 22.6, p = 0.000), continuous sleep until morning (χ2 = 19.2, p = 0.001), nighttime sleep duration (χ2 = 20.2, p = 0.000), and length of daytime naps (χ2 = 28.35, p = 0.000). There was an association between self-reported bruxism and sleeping-related symptoms including awakening early in the morning before the usual time without a cause (χ2 = 16.52, p = 0.000) and increased nightmares (χ2 = 13.7, p = 0.001). Conclusions. Poor sleeping pattern was an important factor among dental students, who reported sleep bruxism. PMID:27034672

  2. Counterfeit medicines: report of a cross-sectional retrospective study in Iran.

    Science.gov (United States)

    Hosseini, S A R; Darbooy, Sh; Tehrani Banihashemi, S A; Naseri, S M; Dinarvand, R

    2011-03-01

    To gain insight into the pharmaceutical grey market in Iran by reviewing inspection files of the Special Inspectorate Unit, Deputy Ministry for Food and Drugs, Ministry of Health and Medical Education, and to define the counterfeit pharmaceutical pattern in Iran. Cross-sectional retrospective study. In total, 382 inspection files of pharmaceutical counterfeit cases between 2007 and 2008 were reviewed. A database was constructed in Microsoft Access, and all cases of counterfeit medicines together with the details recorded in the files were entered. A primary list of all items in all files was produced (n = 7910), and this contained 716 different counterfeit medicines. This article reports the analysis of these 716 items and the outcome. Subsequently, the list of items was further filtered, and a final working list of 100 items was selected for further analysis. Drug samples of the working list were collected and checked against a modified version of the 'Checklist for the visual inspection of medicines to identify suspicious drug products' of the US Pharmacopeia Convention, Inc. and recommended by IMPACT (International Medical Products Anti-Counterfeiting Taskforce). Details of items in the working list recorded in the checklist were then entered into the database. Data were analysed using Statistical Package for the Social Sciences Version 12.0 and Microsoft Excel. Of the 716 items, 64.5% were supplements, 10.2% were analgesics, 7.8% were hormones and 3.2% were antihistamines. Unnamed items and/or items of unknown origin accounted for 2.4% of the total. Herbal medicines, drugs used in the central nervous system, gastrointestinal system and genito-urinary systems, and drugs used for cardiovascular disease and diabetes represented 1-2% of items, and other drug groups accounted for counterfeit medicines. Drugs used in professional settings accounted for 20% and drugs used in non-professional settings accounted for 15% of the 716 items. Selected items were checked

  3. Assessing the completeness of reporting of observational studies in Colombian Journal of Anesthesiology. Cross sectional study

    NARCIS (Netherlands)

    Bravo-Peña, M. (Mary); Barona-Fong, L. (Luis); Campo-López, J. (Julio); Arroyave, Y. (Yeni); J.A. Calvache (Jose Andres)

    2017-01-01

    textabstractIntroduction The STROBE statement (Strengthening the Reporting of Observational Studies in Epidemiology), consisting of 22 points, was published in 2007 with the aim of improving the reporting of observational research. Objective To determine the completeness of reporting of observationa

  4. Assessing the completeness of reporting of observational studies in Colombian Journal of Anesthesiology. Cross sectional study

    NARCIS (Netherlands)

    Bravo-Peña, M. (Mary); Barona-Fong, L. (Luis); Campo-López, J. (Julio); Arroyave, Y. (Yeni); J.A. Calvache (Jose Andres)

    2017-01-01

    textabstractIntroduction The STROBE statement (Strengthening the Reporting of Observational Studies in Epidemiology), consisting of 22 points, was published in 2007 with the aim of improving the reporting of observational research. Objective To determine the completeness of reporting of observationa

  5. "Numb-Leg" in a Cross-Fit Athlete: A Case Report.

    Science.gov (United States)

    Esser, Stephan; Thurston, Mckennan; Nalluri, Krishna; Muzaurieta, Aurelio

    2017-04-04

    Participation in "CrossFit" athletics and Olympic-styled lifting by the general populace has rapidly increased in the last 10 years. Such athletic engagement poses unique, inadequately defined risks to the participant. We describe the case of a 36 y/o male presenting to an outpatient sports medicine clinic with six weeks of numbness and tingling in the lateral right proximal thigh. After thorough examination and EMG testing, he was found to have a lateral femoral cutaneous neuropathy caused by performing supine gluteal bridges with a weighted barbell resting across his anterior thighs. His case exemplifies the unique exercise demands and injury risks of CrossFit styled exercise. Sports medicine providers should be familiar with both trends in sports/fitness participation and the associated unique risks such sports pose so they can adequately counsel on safety of participation and correctly differentiate cause of injury when evaluating patients in the clinic setting.

  6. Facility for Advanced Accelerator Experimental Tests at SLAC (FACET) Conceptual Design Report

    Energy Technology Data Exchange (ETDEWEB)

    Amann, J.; Bane, K.; /SLAC

    2009-10-30

    This Conceptual Design Report (CDR) describes the design of FACET. It will be updated to stay current with the developing design of the facility. This CDR begins as the baseline conceptual design and will evolve into an 'as-built' manual for the completed facility. The Executive Summary, Chapter 1, gives an introduction to the FACET project and describes the salient features of its design. Chapter 2 gives an overview of FACET. It describes the general parameters of the machine and the basic approaches to implementation. The FACET project does not include the implementation of specific scientific experiments either for plasma wake-field acceleration for other applications. Nonetheless, enough work has been done to define potential experiments to assure that the facility can meet the requirements of the experimental community. Chapter 3, Scientific Case, describes the planned plasma wakefield and other experiments. Chapter 4, Technical Description of FACET, describes the parameters and design of all technical systems of FACET. FACET uses the first two thirds of the existing SLAC linac to accelerate the beam to about 20GeV, and compress it with the aid of two chicanes, located in Sector 10 and Sector 20. The Sector 20 area will include a focusing system, the generic experimental area and the beam dump. Chapter 5, Management of Scientific Program, describes the management of the scientific program at FACET. Chapter 6, Environment, Safety and Health and Quality Assurance, describes the existing programs at SLAC and their application to the FACET project. It includes a preliminary analysis of safety hazards and the planned mitigation. Chapter 7, Work Breakdown Structure, describes the structure used for developing the cost estimates, which will also be used to manage the project. The chapter defines the scope of work of each element down to level 3.

  7. Absorption cross-sections of ozone in the ultraviolet and visible spectral regions: Status report 2015

    Science.gov (United States)

    Orphal, Johannes; Staehelin, Johannes; Tamminen, Johanna; Braathen, Geir; De Backer, Marie-Renée; Bais, Alkiviadis; Balis, Dimitris; Barbe, Alain; Bhartia, Pawan K.; Birk, Manfred; Burkholder, James B.; Chance, Kelly; von Clarmann, Thomas; Cox, Anthony; Degenstein, Doug; Evans, Robert; Flaud, Jean-Marie; Flittner, David; Godin-Beekmann, Sophie; Gorshelev, Viktor; Gratien, Aline; Hare, Edward; Janssen, Christof; Kyrölä, Erkki; McElroy, Thomas; McPeters, Richard; Pastel, Maud; Petersen, Michael; Petropavlovskikh, Irina; Picquet-Varrault, Benedicte; Pitts, Michael; Labow, Gordon; Rotger-Languereau, Maud; Leblanc, Thierry; Lerot, Christophe; Liu, Xiong; Moussay, Philippe; Redondas, Alberto; Van Roozendael, Michel; Sander, Stanley P.; Schneider, Matthias; Serdyuchenko, Anna; Veefkind, Pepijn; Viallon, Joële; Viatte, Camille; Wagner, Georg; Weber, Mark; Wielgosz, Robert I.; Zehner, Claus

    2016-09-01

    The activity "Absorption Cross-Sections of Ozone" (ACSO) started in 2008 as a joint initiative of the International Ozone Commission (IO3C), the World Meteorological Organization (WMO) and the IGACO ("Integrated Global Atmospheric Chemistry Observations") O3/UV subgroup to study, evaluate, and recommend the most suitable ozone absorption cross-section laboratory data to be used in atmospheric ozone measurements. The evaluation was basically restricted to ozone absorption cross-sections in the UV range with particular focus on the Huggins band. Up until now, the data of Bass and Paur published in 1985 (BP, 1985) are still officially recommended for such measurements. During the last decade it became obvious that BP (1985) cross-section data have deficits for use in advanced space-borne ozone measurements. At the same time, it was recognized that the origin of systematic differences in ground-based measurements of ozone required further investigation, in particular whether the BP (1985) cross-section data might contribute to these differences. In ACSO, different sets of laboratory ozone absorption cross-section data (including their dependence on temperature) of the group of Reims (France) (Brion et al., 1993, 1998, 1992, 1995, abbreviated as BDM, 1995) and those of Serdyuchenko et al. (2014), and Gorshelev et al. (2014), (abbreviated as SER, 2014) were examined for use in atmospheric ozone measurements in the Huggins band. In conclusion, ACSO recommends: The spectroscopic data of BP (1985) should no longer be used for retrieval of atmospheric ozone measurements. For retrieval of ground-based instruments of total ozone and ozone profile measurements by the Umkehr method performed by Brewer and Dobson instruments data of SER (2014) are recommended to be used. When SER (2014) is used, the difference between total ozone measurements of Brewer and Dobson instruments are very small and the difference between Dobson measurements at AD and CD wavelength pairs are diminished

  8. Prevalence, age at onset, and risk factors of self-reported asthma among Swedish adolescent elite cross-country skiers.

    Science.gov (United States)

    Eriksson, L M; Irewall, T; Lindberg, Anne; Stenfors, Nikolai

    2017-03-17

    The objective of the study was to compare the prevalence of self-reported physician-diagnosed asthma and age at asthma onset between Swedish adolescent elite skiers and a reference group and to assess risk factors associated with asthma. Postal questionnaires were sent to 253 pupils at the Swedish National Elite Sport Schools for cross-country skiing, biathlon, and ski-orienteering ("skiers") and a random sample of 500 adolescents aged 16-20, matched for sport school municipalities ("reference"). The response rate was 96% among the skiers and 48% in the reference group. The proportion of participants with self-reported physician-diagnosed asthma was higher among skiers than in the reference group (27 vs. 19%, p = 0.046). Female skiers reported a higher prevalence of physician-diagnosed asthma compared to male skiers (34 vs. 20%, p = 0.021). The median age at asthma onset was higher among skiers (12.0 vs. 8.0 years; p < 0.001). Female sex, family history of asthma, nasal allergy, and being a skier were risk factors associated with self-reported physician-diagnosed asthma. Swedish adolescent elite cross-country skiers have a higher asthma prevalence and later age at asthma onset compared to a reference population. Being an adolescent elite skier is an independent risk factor associated with asthma. This article is protected by copyright. All rights reserved.

  9. Mechanistic Insight into the Cu-Catalyzed C-S Cross-Coupling of Thioacetate with Aryl Halides. A Joint Experimental-Computational Study.

    Science.gov (United States)

    Soria-Castro, Silvia M; Andrada, Diego M; Caminos, Daniel A; Argúello, Juan E; Robert, Marc; Peñeñory, Alicia B

    2017-09-29

    The mechanism of the Ullmann-type reaction between potassium thioacetate (KSAc) and iodobenzene (PhI) catalyzed by CuI associated with 1,10-phenanthroline (phen) as a ligand has been explored experimentally and computationally. The study on C-S bond formation has been investigated by UV-visible spectrophotometry, cyclic voltammetry, mass espectrometry and products assessment from radical probes. The results indicate that under experimental conditions the catalytically active species is [Cu(phen)(SAc)] regardless of the copper source. An examination of the aryl halide activation mechanism using radical probes was undertaken. No evidences of the presence of radical species have been found during the reaction process, which is consistent with an oxidative addition cross coupling pathway. The different reaction pathways leading to the experimentally observed reaction products have been studied by DFT calculation. The oxidative addition - reductive elimination mechanism via an unstable CuIII intermediate is energetically more feasible than other possible mechanisms such as Single Electron Transfer, Halogen Atom Transfer and σ-Bond Methatesis.

  10. Condensed argon isentropic compression with ultrahigh magnetic field pressure: Experimental design. Post-shot report

    Energy Technology Data Exchange (ETDEWEB)

    Bykov, A.I.; Boriskov, G.V.; Dolotenko, M.I. [All-Russian Research Inst. of Experimental Physics, Sarov (Russian Federation)] [and others

    1996-12-31

    This report continues the series of work devoted to experimental study of a high-dense condensed argon state. Remember that according to work of Kwon et. al., hexagonal close-packed structure is profitable in terms of energy rather than face-centered argon structure (stable with zero pressure). What is most interesting and intriguing here is the issue of possible argon metallization, when it is compressed up to the densities more than 9.17 g/cm{sup 3}. In the experiment of 1995 (the arrangement and data are described in a cited reference) the authors recorded appearance of conductivity in argon, which is non-conductive in the initial state, when it is compressed more than a factor of four. The peak value of argon specific conductivity recorded in this experiment did not exceed 10 (Ohm x cm){sup {minus}1}. This value of conductivity is characteristic of semiconductors, but not metals, which have 10{sup 4} (Ohm x cm){sup {minus}1}. At this stage of the work the main attention is paid to recording of argon conductive state and studying the possibilities of multiframed radiography of the sample in the compressed state.

  11. Cockpit Interruptions and Distractions: An Analysis of ASRS Reports and an Experimental Program

    Science.gov (United States)

    Dismukes, R. K.; Young, Grant E.; Connors, Mary (Technical Monitor)

    1998-01-01

    A recent detailed analysis of 107 ASRS incident reports focusing on interruptions and distractions as their primary feature revealed several interesting and surprising findings. Of those tasks that were interfered with, over 40% fell within the category of monitoring; for example, monitoring the autopilot flying the aircraft, monitoring the pilot flying, or monitoring the altimeter or navigation instruments for future action. Surprisingly, over 60% of the tasks that were considered distractions fell under the broad category of communication or conversation. Using these findings, we have developed an experimental paradigm that will help us understand the method by which pilots perform certain monitoring tasks. Specifically, we hope to determine the degree to which pilots rely on internal time mechanisms versus external cues as a means of successfully completing a monitoring task. In addition, we will incorporate a battery of competing aviation type tasks, including communication, to see how these tasks affect the process of monitoring. The long range goal of this research is to find operational solutions that facilitate effective monitoring in the presence of both sudden interruptions and distractions that lead to unintended multiple tasks situations.

  12. Conceptual studies of toroidal field magnets for the tokamak (fusion) experimental power reactor. Final report

    Energy Technology Data Exchange (ETDEWEB)

    1976-11-01

    This report presents the results of ''Conceptual Studies of Toroidal Field Magnets for the Tokamak Experimental Power Reactor'' performed for the Energy Research and Development Administration, Oak Ridge Operations. Two conceptual coil designs are developed. One design approach to produce a specified 8 Tesla maximum field uses a novel NbTi superconductor design cooled by pool-boiling liquid helium. For a highest practicable field design, a unique NbSn/sub 3/ conductor is used with forced-flow, single-phase liquid helium cooling to achieve a 12 Tesla peak field. Fabrication requirements are also developed for these approximately 7 meter horizontal bore by 11 meter vertical bore coils. Cryostat design approaches are analyzed and a hybrid cryostat approach selected. Structural analyses are performed for approaches to support in-plane and out-of-plane loads and a structural approach selected. In addition to the conceptual design studies, cost estimates and schedules are prepared for each of the design approaches, major uncertainties and recommendations for research and development identified, and test coil size for demonstration recommended.

  13. Experimental heavy ion physics at high energies. Progress report, September 1992--November 1993

    Energy Technology Data Exchange (ETDEWEB)

    1993-12-31

    This report summarizes the research activities of the experimental high energy heavy ion physics group at Vanderbilt University carried out under Grant No. DE-FG05092ER40712 with the Department of Energy during the period Oct 1, 1992 to Nov 30, 1993. This research encompasses four areas of related inquiry in relativistic and high energy nuclear reactions. The preparation of the PHENIX experiment which has been approved as one of the two major experiments at RHIC to start in 1998. The RD10/RD45 Muon Identifier experiment which will provide essential input for the design of the Muon Endcap arm detector sub-system in PHENIX. The E855 Soft Photon Experiment at the AGS designed to clarify the status of a possible quark-gluon-plasma signature with presently available heavy-ion collisions. The construction CsI Ball detector project at Texas A&M which is designed as part of a comprehensive detector system which will probe the nuclear equation of state in the 50 MeV/nucleon domain.

  14. Review of Ginkgo biloba-induced toxicity, from experimental studies to human case reports.

    Science.gov (United States)

    Mei, Nan; Guo, Xiaoqing; Ren, Zhen; Kobayashi, Daisuke; Wada, Keiji; Guo, Lei

    2017-01-02

    Ginkgo biloba seeds and leaves have been used as a traditional herbal remedy for thousands of years, and its leaf extract has been consumed as a botanical dietary supplement for decades. Ginkgo biloba extract is a complex mixture with numerous components, including flavonol glycosides and terpene lactones, and is one of the most widely sold botanical dietary supplements worldwide. Concerns about potential health risks for the general population have been raised because of the widespread human exposure to Ginkgo biloba and its potential toxic and carcinogenic activities in rodents. The National Toxicology Program conducted 2-year gavage studies on one Ginkgo biloba leaf extract and concluded that there was clear evidence of carcinogenic activity of this extract in mice based on an increased incidence of hepatocellular carcinoma and hepatoblastoma. Recently, Ginkgo biloba leaf extract has been classified as a possible human carcinogen (Group 2B) by the International Agency for Research on Cancer. This review presents updated information on the toxicological effects from experimental studies both in vitro and in vivo to human case reports (caused by ginkgo seeds or leaves), and also summarizes the negative results from relatively large clinical trials.

  15. Cross Platform Standardisation of an Experimental Pipeline for Use in the Identification of Dysregulated Human Circulating MiRNAs.

    Directory of Open Access Journals (Sweden)

    Helena Kelly

    Full Text Available Micro RNAs (miRNAs are a class of highly conserved small non-coding RNAs that play an important part in the post-transcriptional regulation of gene expression. A substantial number of miRNAs have been proposed as biomarkers for diseases. While reverse transcriptase Real-time PCR (RT-qPCR is considered the gold standard for the evaluation and validation of miRNA biomarkers, small RNA sequencing is now routinely being adopted for the identification of dysregulated miRNAs. However, in many cases where putative miRNA biomarkers are identified using small RNA sequencing, they are not substantiated when RT-qPCR is used for validation. To date, there is a lack of consensus regarding optimal methodologies for miRNA detection, quantification and standardisation when different platform technologies are used.In this study we present an experimental pipeline that takes into consideration sample collection, processing, enrichment, and the subsequent comparative analysis of circulating small ribonucleic acids using small RNA sequencing and RT-qPCR.Initially, a panel of miRNAs dysregulated in circulating blood from breast cancer patients compared to healthy women were identified using small RNA sequencing. MiR-320a was identified as the most dysregulated miRNA between the two female cohorts. Total RNA and enriched small RNA populations (<30 bp isolated from peripheral blood from the same female cohort samples were then tested for using a miR-320a RT-qPCR assay. When total RNA was analysed with this miR-320a RT-qPCR assay, a 2.3-fold decrease in expression levels was observed between blood samples from healthy controls and breast cancer patients. However, upon enrichment for the small RNA population and subsequent analysis of miR-320a using RT-qPCR, its dysregulation in breast cancer patients was more pronounced with an 8.89-fold decrease in miR-320a expression. We propose that the experimental pipeline outlined could serve as a robust approach for the

  16. PVA-PEG physically cross-linked hydrogel film as a wound dressing: experimental design and optimization.

    Science.gov (United States)

    Ahmed, Afnan Sh; Mandal, Uttam Kumar; Taher, Muhammad; Susanti, Deny; Jaffri, Juliana Md

    2017-04-05

    The development of hydrogel films as wound healing dressings is of a great interest owing to their biological tissue-like nature. Polyvinyl alcohol/polyethylene glycol (PVA/PEG) hydrogels loaded with asiaticoside, a standardized rich fraction of Centella asiatica, were successfully developed using the freeze-thaw method. Response surface methodology with Box-Behnken experimental design was employed to optimize the hydrogels. The hydrogels were characterized and optimized by gel fraction, swelling behavior, water vapor transmission rate and mechanical strength. The formulation with 8% PVA, 5% PEG 400 and five consecutive freeze-thaw cycles was selected as the optimized formulation and was further characterized by its drug release, rheological study, morphology, cytotoxicity and microbial studies. The optimized formulation showed more than 90% drug release at 12 hours. The rheological properties exhibited that the formulation has viscoelastic behavior and remains stable upon storage. Cell culture studies confirmed the biocompatible nature of the optimized hydrogel formulation. In the microbial limit tests, the optimized hydrogel showed no microbial growth. The developed optimized PVA/PEG hydrogel using freeze-thaw method was swellable, elastic, safe, and it can be considered as a promising new wound dressing formulation.

  17. Experimental study on vortex induced vibration (VIV of a wide-D-section cylinder in a cross flow

    Directory of Open Access Journals (Sweden)

    Qingyang Wang

    2015-01-01

    Full Text Available Wake structures and vortex induced vibration (VIV of a spring-supported wide-D-section cylinder were experimentally investigated using an X-wire, a novel phase-locked particle image velocimetry (PIV, and an acceleration sensor at a low speed wind tunnel. Compared with the fixed case, the 2P (two pair vortex mode as defined by Govardhan and Williamson (2000 rather than S (single vortex mode exists in the wake. The velocity deficit behind the cylinder is much larger than that of fixed case. The mean drag coefficient increases from 1.42 for the fixed case to 1.64 for the vibrating case. The Reynolds stress presents even distribution and small with increased distance of X/D=−2 to X/D=−10. The power spectra density based on accelerator and hot wire data presents a highlight identical. It shows that after a strong interaction the cylinder vibration and the vortex shedding come to a stable state. The vortex shedding is totally locked on and controlled by the cylinder vibration.

  18. Experimental and theoretical triple-differential cross sections for tetrahydrofuran ionized by low-energy 26-eV-electron impact

    Science.gov (United States)

    Ali, Esam; Ren, XueGuang; Dorn, Alexander; Ning, Chuangang; Colgan, James; Madison, Don

    2016-06-01

    We report an experimental and theoretical study of low-energy electron-impact ionization of tetrahydrofuran, which is a molecule of biological interest. The experiments were performed using an advanced reaction microscope specially built for electron-impact ionization studies. The theoretical calculations were performed within the molecular three-body distorted-wave model. Reasonably good agreement is found between experiment and theory.

  19. On the theoretical and experimental uncertainties in the extraction of the J/psi absorption cross section in cold nuclear matter

    CERN Document Server

    Rakotozafindrabe, A; Fleuret, F; Lansberg, J P

    2010-01-01

    We investigate the cold nuclear matter effects on $J/\\psi$ production, whose understanding is fundamental to study the quark-gluon plasma. Two of these effects are of particular relevance: the shadowing of the parton distributions and the nuclear absorption of the $c\\bar{c}$ pair. If $J/\\psi$'s are not produced {\\it via} a $2 \\to 1$ process as suggested by recent theoretical works, one has to modify accordingly the way to compute the nuclear shadowing. This naturally induces differences in the absorption cross-section fit to the data. A careful analysis of these differences however requires taking into account the experimental uncertainties and their correlations, as done in this work for $d$Au collisions at $\\sqrtsNN=200\\mathrm{GeV}$, using several shadowing parametrisations.

  20. Experimental demonstration of a DSP-based cross-channel interference cancellation technique for application in digital filter multiple access PONs.

    Science.gov (United States)

    Al-Rawachy, E; Giddings, R P; Tang, J M

    2017-02-20

    A DSP-based cross-channel interference cancellation (CCIC) technique with initial condition-free, fast convergence and signal modulation format independence, is experimentally demonstrated in a two-channel point-to-point digital filter multiple access (DFMA) PON system based on intensity-modulation and direct-detection (IMDD). The CCIC-induced transmission performance improvements under various system conditions are fully investigated for the first time. It is shown that with one iteration only the CCIC technique can achieve a reduction in individual OFDM subcarrier BERs of more than 1000 times, an increase in transmission capacity by as much as 19 times and an increase in optical power budget by as much as 3.5dB. The CCIC technique thus has the potential to drastically improve the transmission performance of DFMA PONs.

  1. Experimental study of a R-407C drop-in test on an off-the-shelf air conditioner with a counter-cross-flow evaporator

    Energy Technology Data Exchange (ETDEWEB)

    Mei, V.C.; Domitrovic, R.; Chen, F.C.

    1998-03-01

    An off-the-shelf 2-ton window air conditioner having an energy efficiency ratio of 10 was used to perform a drop-in test with R-407C. Laboratory tests were performed using a parallel-cross-flow (PCF) evaporator and a counter-cross-flow (CCF) evaporator. The CCF configuration is designed to take advantage of the temperature glide of R-407C so that the warm evaporator inlet air will be in contact with the higher temperature part of the evaporator coils first. The test results indicated that, at the Air Conditioning and Refrigeration Institute-rated indoor and outdoor conditions, the cooling capacity was 8% higher and system coefficient of performance about 3.8% higher for the CCF evaporator than for the PCF evaporator. The test results also showed that the latent load for CCF was 30.6% higher than for PCF. The far better dehumidification effect provided by the CCF evaporator design is desirable for areas where the latent load is high. The experimental findings should be useful for future efforts to design a dehumidifier that uses a zeotropic refrigerant that provides a significant temperature glide. R-22 test data from a previous project are included as a reference.

  2. Immuno-proteomic analysis of human immune responses to experimental Neisseria meningitidis outer membrane vesicle vaccines identifies potential cross-reactive antigens.

    Science.gov (United States)

    Williams, Jeannette N; Weynants, Vincent; Poolman, Jan T; Heckels, John E; Christodoulides, Myron

    2014-03-05

    Human volunteers were vaccinated with experimental Neisseria meningitidis serogroup B vaccines based on strain H44/76 detoxified L3 lipooligosaccharide (LOS)-derived outer membrane vesicles (OMV) or the licensed Cuban vaccine, VA-MENGOC-BC. Some volunteers were able to elicit cross-bactericidal antibodies against heterologous L2-LOS strain (760676). An immuno-proteomic approach was used to identify potential targets of these cross-bactericidal antibodies using an L2-LOS derived OMV preparation. A total of nine immuno-reactive spots were detected in this proteome: individuals vaccinated with the detoxified OMVs showed an increase in post-vaccination serum reactivity with Spots 2-8, but not with Spots 1 and 9. Vaccination with VA-MENGOC-BC induced sera that showed increased reactivity with all of the protein spots. Vaccinees showed increases in serum bactericidal activity (SBA) against the heterologous L2-LOS expressing strain 760676, which correlated, in general, with immunoblot reactivity. The identities of proteins within the immuno-reactive spots were determined. These included not only well-studied antigens such as Rmp, Opa, PorB and FbpA (NMB0634), but also identified novel antigens such as exopolyphosphatase (NMB1467) and γ-glutamyltranspeptidase (NMB1057) enzymes and a putative cell binding factor (NMB0345) protein. Investigating the biological properties of such novel antigens may provide candidates for the development of second generation meningococcal vaccines. Copyright © 2014 Elsevier Ltd. All rights reserved.

  3. Cross-fused renal ectopia associated with vesicoureteral reflux; a case report

    Science.gov (United States)

    Naseri, Mitra

    2016-01-01

    Crossed renal ectopia is a rare urinary system anomaly which mostly is asymptomatic and is diagnosed incidentally. Urinary obstruction, infection, and neoplasia of the urinary system and nephrolithiasis are main complications of this anomaly. A 6-year-old boy admitted to the hospital with colicky abdominal pain and nausea. Abdominal examination revealed tenderness in right lower quadrant. Urine analysis and culture were normal. Kidney ultrasonography showed right kidney in pelvis cavity with no kidney tissue in left side. TC 99-DMSA scan demonstrated no radiotracer accumulation in the normal renal area. Radiotracer accumulation was seen in the pelvis area with a deviation to the left. Voiding cystoureterogram revealed right sided grade II vesicoureteral reflux. Severe urological anomalies in children may be asymptomatic or have nonspecific symptoms such as abdominal pain. PMID:27689123

  4. Final Report for Statistical Nonlinear Optics of High Energy Density Plasmas: The Physics of Multiple Crossing Laser Beams

    Energy Technology Data Exchange (ETDEWEB)

    Afeyan, Bedros [Polymath Research Inc., Pleasanton, CA (United States); Hueller, Stefan [Centre de Physique Theorique de l' Ecole Polytechnique (France); Montgomery, David S. [Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Hammer, James H. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Meezan, Nathan B. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Heebner, John E. [Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)

    2016-10-24

    The various implementations of the STUD pulse program (spike trains of uneven duration and delay) for LPI (laser-plasma instability) control were studied in depth, and novel regimes were found. How to generate STUD pulses with large time-bandwidth products, how to measure their optical scattering signatures, and how to experimentally demonstrate their usefulness were explored. Theoretical and numerical studies were conducted on Stimulated Brillouin Scattering (SBS) and Crossed Beam Energy Transfer (CBET) including statistical models. We established how LPI can be tamed and gain democratized in space and time. Implementing STUD pulses on NIF was also studied. Future high rep rate lasers and fast diagnostics will aid in the adoption of the whole STUD pulse program for LPI control in High Energy Density Plasmas (HEDP).

  5. Cross-flow filter-sorbent catalyst for particulate, SO{sub 2} and NO{sub x} control. Second quarter technical progress report

    Energy Technology Data Exchange (ETDEWEB)

    1990-05-01

    This report describes a new concept for integrated pollutant control: a cross-flow filter comprised of layered, gas permeable membranes that act a particulate filter, an SO{sub 2} sorbent, and a NO{sub x} reduction catalyst.

  6. Upper Mississippi River National Wildlife and Fish Refuge : Winona District, La Crosse District, McGregor District, Savanna District : Annual Narrative Report : Calendar Year 1992

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Upper Mississippi River National Wildlife and Fish Refuge summarizes activities for Winona District, La Crosse District, McGregor...

  7. Upper Mississippi River National Wildlife and Fish Refuge : Winona District, La Crosse District, McGregor District, Savanna District : Annual Narrative Report : Calendar Year 1996

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Upper Mississippi River National Wildlife and Fish Refuge summarizes activities for Winona District, La Crosse District, McGregor...

  8. Upper Mississippi River National Wildlife and Fish Refuge : Winona District, La Crosse District, McGregor District, Savanna District : Annual Narrative Report : Calendar Year 1993

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Upper Mississippi River National Wildlife and Fish Refuge summarizes activities for Winona District, La Crosse District, McGregor...

  9. Upper Mississippi River National Wildlife and Fish Refuge : Winona District, La Crosse District, McGregor District, Savanna District : Annual Narrative Report : Calendar Year 1995

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Upper Mississippi River National Wildlife and Fish Refuge summarizes activities for Winona District, La Crosse District, McGregor...

  10. Upper Mississippi River National Wildlife and Fish Refuge : Winona District, La Crosse District, McGregor District, Savanna District : Annual Narrative Report : Calendar Year 1994

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This annual narrative report for Upper Mississippi River National Wildlife and Fish Refuge summarizes activities for Winona District, La Crosse District, McGregor...

  11. Experimental Engineering Section semiannual progress report, March 1-August 31, 1976. Volume 2. Biotechnology and environmental programs

    Energy Technology Data Exchange (ETDEWEB)

    Pitt, Jr., W. W.; Mrochek, J. E. [comps.

    1978-03-01

    This volume contains the progress report of the biotechnology and environmental programs in the Experimental Engineering Section of the Chemical Technology Division. Research efforts in these programs during this report period have been in five areas: (1) environmental research; (2) centrifugal analyzer development; (3) advanced analytical systems development; (4) bioengineering research; and (5) bioengineering development. Summaries of these programmatic areas are contained in Volume I.

  12. A cross-sectional study of self-reported general health, lifestyle factors, and disease: the Hordaland Health Study

    Directory of Open Access Journals (Sweden)

    Randi Jepsen

    2014-10-01

    Full Text Available Background. Information on self-reported health is important for health professionals, and the aim of this study was to examine associations between lifestyle factors and self-reported health and the mediating effect of disease in a Norwegian population.Methods and Materials. The data collection was conducted as part of the Hordaland Health Study (HUSK 1997–99, which was a cross-sectional epidemiological study. All individuals in Hordaland county born in 1953–1957 were invited to participate (aged 40–44 years. Complete information for the present study was obtained from 12,883 individuals (44% response rate. Height and weight were measured at a physical examination. Information on lifestyle factors, self-reported health, disease (heart attack, apoplexy, angina pectoris, and diabetes, and socio-demographic variables was obtained from a self-administered questionnaire. Self-reported health was measured with a one-item question. Odds ratios for fair or poor self-reported health were calculated using multiple logistic regression analyses adjusted for disease and socio-demographic variables.Results. Respondents reporting adverse lifestyle behaviours (obesity (odds ratio (OR 1.7, p < 0.001, smoking (OR 1.2, p < 0.001, or excessive intake of alcohol (OR 3.3, p < 0.001 showed an increased risk of poor self-reported health. Furthermore, a moderate intake of wine (OR 0.6, p < 0.001 or strenuous physical activity (OR 0.5, p < 0.001 decreased the risk of poor health. Disease did not mediate the effect.Conclusion. A one-item question measuring self-reported health may be a suitable measure for health professionals to identify levels of subjective health and reveal a need to target lifestyle factors in relatively young individuals with or without disease.

  13. The surrealist book as a cross-border space: The experimentations of Lise Deharme and Gisèle Prassinos

    Directory of Open Access Journals (Sweden)

    Andrea Oberhuber

    2011-08-01

    Full Text Available

    Abstract: Following in the ‘revolutionary’ aesthetic footsteps of the post-World War One avant-garde, many writers, painters, and photographers chose to partake in interartistic collaboration, thus defying the established boundaries between the different arts and their media and putting an end to the idea of the work of art as the ultimate production of a sole individual. Artistic contributions such as those by Magritte and Man Ray for Éluard, or those by Masson for Aragon, Bataille and Leiris, are now considered classics of the surrealist book. Yet the collaboration between women writers and artists of the surrealist movement remains to this day largely unknown, notwithstanding their recognized intermedial practice. Most would combine two artistic practices in their works: writing and film (Belen a.k.a Nelly Kaplan, writing and photography (Claude Cahun, writing and painting (Leonora Carrington, or writing and drawing (Unica Zürn. In my analysis of the avant-garde book-object, I examine two examples of rethinking the book as a space of text/image experimentation in the framework of surrealist aesthetics. The first is Lise Deharme, who sees the book as a space for collaboration and intermedial dialogue, the second Gisèle Prassinos, who views the book-object as a space for playful metamorphosis. These two writers and artists upset any previous understanding of the ‘illustrated book’ and come far closer to what is referred to today as the livre d’artiste.

  14. Cross-Cultural Considerations in Early Childhood Special Education. Technical Report.

    Science.gov (United States)

    Garcia, Georgia Earnest; Watkins, Ruth; Eatman, Janet; Bennett, Tess; Zhang, Chun; Tarnow, Laura Hojnar; McCollum, Jeanette; Yates, Tweety; Ostrosky, Micki; Halle, James

    From 1996-2001, the Early Childhood Research Institute on Culturally and Linguistically Appropriate Services (CLAS) has worked to support practitioners in increasing their understanding and awareness of the impact of culture and language on their interactions with children and families. This report presents four articles outlining some of the key…

  15. 76 FR 76971 - Cross-Media Electronic Reporting: Authorized Program Revision Approval, State of Arkansas

    Science.gov (United States)

    2011-12-09

    ... its 40 CFR Part 272--Approved State Hazardous Waste Management EPA-authorized program for electronic reporting of annual hazardous waste information submitted under 40 CFR parts 262, 264, and 265 is being... Arkansas Department of Environmental Quality (AR DEQ) submitted an application for its Hazardous...

  16. Progress report of a research program in experimental and theoretical high energy physics, 1 January 1992--31 May 1992

    Energy Technology Data Exchange (ETDEWEB)

    Brandenberger, R.; Cutts, D.; Fried, H.M.; Guralnik, G.; Jevicki, A.; King, K.; Lanou, R.E.; Partridge, R.; Tan, C.I.; Widgoff, M.

    1992-06-01

    This report discusses research at Brown University in experimental and theoretical high energy physics. Some of the research programs conducted are: interactions of leptons and hadrons form accelerator and astrophysical sources; hadron interactions with hydrogen and heavier nuclei; large volume detector at the Gran Sasso Laboratory; GEM collaboration at SSC; and hadron colliders and neutrino physics. (LSP)

  17. Experimental and Demonstration Program, Copper Country Intermediate School District. End of Budget Period Reports 1972 and 1973.

    Science.gov (United States)

    Michigan State Dept. of Education, Lansing.

    End of budget period reports are presented for an experimental and demonstration program aimed at increasing the learning process and achievement of K-4 children and to effect internal and external change in teachers' attitudes and behavior. The program, instituted in a rural, low income area, consists of an Orff music program and a theater…

  18. Mechanisms and genetic control of interspecific crossing barriers in Lycopersicon. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Mutschler, M.A.

    1997-04-30

    Deficiency of Lycopersicon esculentum allele (E) was observed from the RFLP and isozyme data of the F{sub 2} populations derived from the cross L. esculentum x L. pennellii. The genome composition of the F{sub 2} populations containing L. pennellii cytoplasm (F{sub 2}{sup Lp4}) has a lower proportion of the homozygous L. pennellii (PP) genotypes and a higher proportion of heterozygote (EP) genotypes than that of the F{sub 2} populations containing L. esculentum cytoplasm (F{sub 2}{sup Le}). A lower proportion of the L. pennellii alleles (P) was also observed in F{sub 2}{sup Lp4} as compared to F{sub 2}{sup Le} when each marker locus was tested individually. To study the effects of gametic and zygotic selection on segregation distortion, the expected patterns of segregation at a marker locus were derived for ten selection models with gametic or zygotic selection at a hidden linked locus. Segregation distortion caused by four of the selection models studied can be uniquely identified by the patterns of significance expected for the likelihood ratio tests at the marker loci. Comparison of the chromosomal regions associated with specific selection models across populations (of this experiment and previous publications) indicated that the segregation distortion observed in chromosome 10 is associated with zygotic selection affecting both arms of the chromosome, and cytoplasm substitution has the effect of decreasing the segregation distortion on the long arm of the chromosome.

  19. Mechanisms and genetic control of interspecific crossing barriers in Lycopersicon. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Mutschler, M.A.

    1997-04-30

    Deficiency of Lycopersicon esculentum allele (E) was observed from the RFLP and isozyme data of the F{sub 2} populations derived from the cross L. esculentum x L. pennellii. The genome composition of the F{sub 2} populations containing L. pennellii cytoplasm (F{sub 2}{sup Lp4}) has a lower proportion of the homozygous L. pennellii (PP) genotypes and a higher proportion of heterozygote (EP) genotypes than that of the F{sub 2} populations containing L. esculentum cytoplasm (F{sub 2}{sup Le}). A lower proportion of the L. pennellii alleles (P) was also observed in F{sub 2}{sup Lp4} as compared to F{sub 2}{sup Le} when each marker locus was tested individually. To study the effects of gametic and zygotic selection on segregation distortion, the expected patterns of segregation at a marker locus were derived for ten selection models with gametic or zygotic selection at a hidden linked locus. Segregation distortion caused by four of the selection models studied can be uniquely identified by the patterns of significance expected for the likelihood ratio tests at the marker loci. Comparison of the chromosomal regions associated with specific selection models across populations (of this experiment and previous publications) indicated that the segregation distortion observed in chromosome 10 is associated with zygotic selection affecting both arms of the chromosome, and cytoplasm substitution has the effect of decreasing the segregation distortion on the long arm of the chromosome.

  20. Current and Future Carbon Budgets of Tropical Rain Forest: A Cross Scale Analysis. Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Oberbauer, S. F.

    2004-01-16

    The goal of this project was to make a first assessment of the major carbon stocks and fluxes and their climatic determinants in a lowland neotropical rain forest, the La Selva Biological Station, Costa Rica. Our research design was based on the concurrent use of several of the best available approaches, so that data could be cross-validated. A major focus of our effort was to combine meteorological studies of whole-forest carbon exchange (eddy flux), with parallel independent measurements of key components of the forest carbon budget. The eddy flux system operated from February 1998 to February 2001. To obtain field data that could be scaled up to the landscape level, we monitored carbon stocks, net primary productivity components including tree growth and mortality, litterfall, woody debris production, root biomass, and soil respiration in a series of replicated plots stratified across the major environmental gradients of the forest. A second major focus of this project was on the stocks and changes of carbon in the soil. We used isotope studies and intensive monitoring to investigate soil organic stocks and the climate-driven variation of soil respiration down the soil profile, in a set of six 4m deep soil shafts stratified across the landscape. We measured short term tree growth, climate responses of sap flow, and phenology in a suite of ten canopy trees to develop individual models of tree growth to daytime weather variables.

  1. A cross-sectional survey of quality of life in colostomates: a report from Iran

    Directory of Open Access Journals (Sweden)

    Mahjoubi Bahar

    2012-11-01

    Full Text Available Abstract Background Considering the complications that colostomies may cause, patient self-assessments of their social, emotional, physical, sexual and functional conditions may help their surgeons to evaluate the impact of their interventions or use supplementary methods to maintain patient functional status or decrease its loss to the minimum level. The aim of this study was to evaluate the Quality of Life in Iranian patients with colostomies and to compare the age and gender differences among them. Method This cross-sectional study was conducted from 2009 to 2010 to evaluate the quality of life of 96 patients who had undergone surgery for rectal cancer and had permanent colostomies. The European Organization for Research and Treatment of Cancers Quality of Life Questionnaire (EORTC QLQ-C30 and the EORTC QLQ-CR38 were used to assess patient Quality of Life. Results The mean scores for the functional subscales were as follows: Physical Function, 70.9 (±2.2; Role Function, 68.4 (±2.6; Emotional Function, 56.9 (±2.7; Cognitive Function, 68.7 (± 2.6; and Social Function, 64.2 (±3.3. The EORTC questionnaires showed significant differences between males and females. Males had better body image scores. Sexual Function and Sexual Enjoyment were impaired in both males and females, but males had significantly higher scores and better roles in Physical and Sexual Functions. More sexual enjoyment problems in older ages were observed in both males and females. Conclusion Having a colostomy was associated with a high level of emotional and sexual function impairment. The differing challenges between males and females should encourage us to design sex-specific interventions that improve the quality of life in this group of patients.

  2. Information and rehabilitation needs of Indian breast cancer patients: Report of a cross-sectional study

    Directory of Open Access Journals (Sweden)

    N Kaur

    2014-01-01

    Full Text Available Background: Breast cancer causes significant disruption to the quality of life (QOL of its patients, which is compounded further by lack of information and adequate facilities for rehabilitation. Materials and Methods: This descriptive cross-sectional study was conducted in women who had completed their Primary treatment of breast cancer. The QOL was assessed by Functional assessment of cancer therapy-breast (FACT-B version 4, and information and rehabilitation needs were enquired about in a semi-structured interview. Results: A total of 154 patients were enrolled and divided into three groups according to the time elapsed after initial treatment; Group I: 1-2 years, Group II: 2-5 years, Group III: >5 years The FACT-B mean scores were; Group I (n = 64: 79.06 ± 14.60; Group II (n = 48: 85.75 ± 20.15; and Group III (n = 42: 89.83 ± 12.80. Patients in Group I scored lowest on physical well-being subscale, Group II on breast specific subscale and Group III on Social well-being subscale. Pain, lack of energy, inability to meet the needs of the family, fear that the condition will get worse and loss of body image were significant factors contributing to poor QOL. Analysis of interviewshowed many unmet information needs. Main rehabilitation needs were effective treatment of physical symptoms and counselling about body image issues and sexual dysfunctions. Easy availability of clinical and social support services were major felt needs in the long-term follow-up. Conclusions: Targeted Interventions are needed to address issues relating to QOL and rehabilitation needs of breast cancer patients.

  3. Fast neutron cross section measurements. Final technical report, March 1, 1987--September 30, 1995

    Energy Technology Data Exchange (ETDEWEB)

    Knoll, G.F.

    1997-06-01

    The time-of-flight technique was used with the ring scattering geometry in a laboratory with low neutron scattering background to measure the angular distributions of the cross sections for elastic and inelastic scattering of 14 MeV neutrons in natural chromium, iron, nickel, and niobium. Specifically for inelastic scattering included were: the 1.43 MeV and 4.56 MeV levels of {sup 52}Cr, the 0.85 MeV level, and (2.94-3.12) MeV and (4.46-4.51) MeV level groups of {sup 56}Fe, the 1.33 MeV level of {sup 60}Ni combined with the 1.45 MeV level of {sup 58}Ni, and the 4.48 MeV level of {sup 58}Ni. Pulses of neutrons with time width of 0.9-1.1 ns were produced via the {sup 3}H(d,n){sup 4}He reaction in a 150 keV Cockcroft-Walton linear accelerator, with average intensities of 9x10{sup 8} n/s. The energy of the incident neutrons was between 14.75 MeV (at 16{degree}) and 13.48 MeV (at 160{degree}). High purity scattering ring samples were used. The scattering angles ranged from {approx}16{degree} to {approx}150{degree}, for iron, chromium, and nickel, and from {approx}16{degree} to {approx}160{degree} for niobium, with a typical step of {approx}10{degree}. High purity ring samples were used.

  4. Experimental Investigation of Coolant Boiling in a Half-Heated Circular Tube - Final CRADA Report

    Energy Technology Data Exchange (ETDEWEB)

    Yu, Wenhua [Argonne National Lab. (ANL), Argonne, IL (United States); Singh, Dileep [Argonne National Lab. (ANL), Argonne, IL (United States); France, David M. [Argonne National Lab. (ANL), Argonne, IL (United States)

    2016-11-01

    Coolant subcooled boiling in the cylinder head regions of heavy-duty vehicle engines is unavoidable at high thermal loads due to high metal temperatures. However, theoretical, numerical, and experimental studies of coolant subcooled flow boiling under these specific application conditions are generally lacking in the engineering literature. The objective of this project was to provide such much-needed information, including the coolant subcooled flow boiling characteristics and the corresponding heat transfer coefficients, through experimental investigations.

  5. EFFORTS Sub-task report on task 4.1: Experimental Techniques

    DEFF Research Database (Denmark)

    Andreasen, Jan Lasson; Bay, Niels

    1998-01-01

    Task 4.1 is a sub-task of task 4: Physical modelling validation. In sub-task 4.1 the existing experimental techniques has been conditioned to the tasks ahead in physical modelling.......Task 4.1 is a sub-task of task 4: Physical modelling validation. In sub-task 4.1 the existing experimental techniques has been conditioned to the tasks ahead in physical modelling....

  6. Reported analgesic administration to rabbits, pigs, sheep, dogs and non-human primates undergoing experimental surgical procedures.

    Science.gov (United States)

    Coulter, C A; Flecknell, P A; Richardson, C A

    2009-07-01

    Reported analgesic use following experimental surgery is low in rodents and there has been little published information on the frequency of analgesic use in other laboratory species. A structured literature review was conducted to examine analgesic administration in larger laboratory animals. The Scirus search engine was used to identify studies published in peer-reviewed journals that reported carrying out experimental surgery on 'large' laboratory animals, specifically rabbits, pigs, sheep, dogs and non-human primates. Seventy-four studies between 2000 and 2001 and 75 studies between 2005 and 2006 were included in the review. There was an increase in the reported administration of systemic analgesics to these species from 50% in 2000-2001 to 63% in 2005-2006. When all agents with analgesic properties were considered (systemic analgesics, local anaesthetics and anaesthetics with analgesic components), the proportion of papers that reported some form of analgesic administration to 'large' laboratory animals increased from 86% in 2000-2001 to 89% in 2005-2006. Overall rabbits, pigs, sheep, dogs and non-human primates were more likely to receive analgesics following potentially painful experimental procedures than has been reported in laboratory rodents but analgesic administration to 'large' laboratory species is still not optimal.

  7. Predictors of hand hygiene practice among Saudi nursing students: A cross-sectional self-reported study.

    Science.gov (United States)

    Cruz, Jonas P; Bashtawi, Meshrif A

    2016-01-01

    Hand hygiene is an important component of infection control, which is critical to ensuring patients' safety in hospitals. Nursing students are regarded as healthcare workers in training and can also be vehicles of cross-contamination within the hospital. Thus, this study aimed to identify the predictors of hand hygiene practice among Saudi nursing students. A descriptive, cross-sectional, self-reported study was conducted among 198 Saudi nursing students. Knowledge, attitude, and practice of hand hygiene were assessed using the WHO Hand Hygiene Knowledge Questionnaire for Health-Care Workers and its adopted scales. A regression analysis was performed to identify the predictors of hand hygiene practice. The respondents demonstrated moderate knowledge of hand hygiene (mean 13.20±2.80). The majority displayed a moderate attitude toward hand hygiene (52.1%), while only a few reported a poor attitude (13.1%). Approximately 68.7%, 29.8%, and 1.5% of the respondents reported moderate, good, and poor practice of hand hygiene, respectively. Having a good attitude toward hand hygiene, being male, being aware that hand hygiene is an effective intervention in preventing healthcare-associated infections (HAIs), attendance at hand hygiene trainings and seminars, and being in the lower academic level of nursing education were identified as predictors of better hand hygiene practice. The importance of ensuring a positive attitude toward hand hygiene and improving awareness of hand hygiene is emphasized, as are educational interventions. Educational interventions should be implemented to reinforce knowledge and instill a positive attitude toward hand hygiene.

  8. A cross-sectional analysis of reported corporate environmental sustainability practices.

    Science.gov (United States)

    Cowan, Dallas M; Dopart, Pamela; Ferracini, Tyler; Sahmel, Jennifer; Merryman, Kimberly; Gaffney, Shannon; Paustenbach, Dennis J

    2010-12-01

    The concept of sustainability evolved throughout the 1970s and 1980s, but was formally described by the 27 principles of the Rio Declaration on Environment and Development in 1992. Despite the passage of nearly 20years, to date there are no uniform set of federal rules, regulations, or guidelines specifically governing the environmental aspects of sustainability practices or related requirements in the United States. In this benchmark analysis, we have collected information on the sustainability programs of the five largest US companies in each of the 26 industrial sectors [based on the Forbes Global 2000 through 2009 (n=130)]. For each company, we reviewed the most recent corporate sustainability, citizenship, or responsibility report, limiting our scope to environmental components, if available. Ten criteria were identified and analyzed, including leadership, reporting, external review, certification, and individual components of environmental sustainability programs. With respect to the prevalence of sustainability components between various business sectors, we found that the Drugs and Biotechnology (87%), Household and Personal Products (87%) and Oil and Gas Operations (87%) industries had the most comprehensive environmental sustainability programs. Using the nine components of environmental sustainability as a benchmark, we identified four key components as the characteristics of the most comprehensive environmental sustainability programs. These were (1) empowering leadership with a commitment to sustainability (80%), (2) standardized reporting (87%), (3) third-party evaluation of the sustainability programs (73%), and (4) obtaining ISO 14001 certification (73%). We found that many firms shaped their own definition of sustainability and developed their associated sustainability programs based on their sector, stakeholder interests, products or services, and business model. We noted an emerging area that we have called product sustainability - one in which

  9. Traumatic Injuries in Developing Countries: Report from a Nationwide Cross-Sectional Survey of Sierra Leone

    Science.gov (United States)

    Stewart, Kerry-Ann; Groen, Reinou S.; Kamara, Thaim B.; Farahzard, Mina; Samai, Mohamed; Yambasu, Sahr E.; Cassidy, Laura D.; Kushner, Adam L.; Wren, Sherry M.

    2014-01-01

    Objective Despite the tremendous disability and mortality caused by traumatic injuries worldwide, there is a relative dearth of information on the burden of injuries in developing countries. In an effort to document the surgical burden of disease in Sierra Leone, a nationwide survey was conducted utilizing the Surgeons OverSeas Assessment of Surgical Need (SOSAS) tool. Here, we report the injury data from this study with the aim to (1) provide an estimate of injury prevalence, (2) determine the mechanisms of injury, and (3) evaluate the degree of injury related deaths. Methods A population-based household survey was conducted in Sierra Leone in 2012. Participants were selected using a two-stage random sampling method, which generated a target population of 3750 participants across the 14 districts of Sierra Leone. Frequency distributions of mechanisms of injury based on age, sex, and urban versus rural residence were computed, and bivariate logistic regression models used to determine associations between sociodemographic factors and injury patterns. Results Data was analyzed from 1,843 households and 3,645 respondents, representing a response rate of 98.3%. Four hundred and fifty-two respondents (12.4%) reported at least one traumatic injury in the preceding year. Falls were the most common cause of non-fatal injuries, accounting for over 40% of injuries. The extremities were most commonly injured (55% of injuries) regardless of age or sex. Although motor vehicle related injuries were the 4th most common cause of injury overall, they were the leading cause of injury related deaths, accounting for almost 6% of fatal injuries. Conclusion This study provides baseline data on the burden of traumatic injuries in one of the world's poorest nations. In addition to injury prevention measures, immediate strategies to address current healthcare deficits are urgently needed in these resource poor areas. This report is an Original Article with Level I evidence. PMID:23325317

  10. Integrated Reporting and Assurance of Sustainability Information: An Experimental Study on Professional Investors’ Information Processing

    NARCIS (Netherlands)

    Reimsbach, D.; Hahn, R.; Gürtürk, A.

    2017-01-01

    Sustainability-related non-financial information is increasingly deemed value relevant. Against this background, two recent trends in non-financial reporting are frequently discussed: integrated reporting and assurance of sustainability information. Using an established framework of information acqu

  11. Combined experimental and theoretical study on the differential elastic scattering cross sections for acetone by electron impact energy of 7.0-50 eV

    Science.gov (United States)

    Pastega, D. F.; Lange, E.; Ameixa, J.; Barbosa, A. S.; Blanco, F.; García, G.; Bettega, M. H. F.; Limão-Vieira, P.; Ferreira da Silva, F.

    2016-03-01

    We report elastic differential cross sections (DCSs) for electron interactions with acetone, C3H6O . The incident electron energy range was 7.0-50 eV, and the scattered electron angular range for the differential measurements varied from 10° to 120°. The calculated cross sections were obtained with two different methodologies, the Schwinger multichannel method with pseudopotentials (SMCPP), and the independent-atom method with screening-corrected additivity rule (IAM-SCAR). The present elastic DCSs have been found to agree well with the results of IAM-SCAR calculations above 20 eV, and also with the SMC calculations below 30 eV. Although some discrepancies were found for lower energies, the agreement between the SMCPP data and the DCSs obtained with the IAM-SCAR method improves, as expected, as the impact energy increases. Comparison with previous DCSs shows good agreement albeit the present data is extended down to lower electron impact energies. We find a low-lying π* shape resonance located at 2.6 eV, in agreement with recent results on electron collisions with acetone [M. G. P. Homem et al., Phys. Rev. A 92, 032711 (2015), 10.1103/PhysRevA.92.032711]. The presence of a σ* resonance is also discussed.

  12. The German fibromyalgia consumer reports – a cross-sectional survey

    Directory of Open Access Journals (Sweden)

    Häuser Winfried

    2012-05-01

    Full Text Available Abstract Background Consumer surveys provide information on effectiveness and side effects of medical interventions in routine clinical care. A report of fibromyalgia syndrome (FMS consumers has not been carried out in Europe. Methods The study was carried out from November 2010 to April 2011. Participants diagnosed with FMS rated the effectiveness and side effects of pharmacological and non-pharmacological FMS interventions on a 0 to 10 scale, with 10 being most efficacious (harmful. The questionnaire was distributed by the German League for people with Arthritis and Rheumatism and the German Fibromyalgia Association to their members and to all consecutive FMS patients of nine clinical centers of different levels of care. Results 1661 questionnaires (95% women, mean age 54 years, mean duration since FMS diagnosis 6.8 years were analysed. The most frequently used therapies were self-management strategies, prescription pain medication and aerobic exercise. The highest average effectiveness was attributed to whole body and local warmth therapies, thermal bathes, FMS education and resting. The highest average side effects were attributed to strong opioids, local cold therapy, gamma-amino-butyric acid analogues (pregabalin and gabapentin, tramadol and opioid transdermal systems. Conclusion The German fibromyalgia consumer reports highlight the importance of non-pharmcological therapies in the long-term management of FMS, and challenges the strong recommendations for drug therapies given by FMS-guidelines.

  13. Simulation Optimization and Experimental Study of Cross-Wall Adiabatic Dividing Wall Column Used to Separate Hexane-Heptane-Octane System

    Institute of Scientific and Technical Information of China (English)

    Hu Yuqi; Fang Jing; Li Chunli

    2015-01-01

    Through separation of the hexane-heptane–octane system in a cross-wall adiabatic dividing wall column, the ef-fects of feed position, side-draw position, liquid split ratio, vapor split ratio and their interactions on the energy consumption were analyzed by Aspen Plus under the constant product purity, and the response surface model for the energy consumption was regressed. Based on the restriction on the optimal operating zone, the comparison of different combinations of surrogate models and optimization methods showed that, the combination of the Kriging model and multi-island genetic algorithm (Kriging-MIGA) had better prediction ability than the combination of the response surface model and partial derivative method (RSM-PD), and RSM-PD had better optimization effect than Kriging-MIGA. With a self-made cross-wall adiabatic dividing wall column, the temperature at measuring points and the energy consumption were measured during experiments, the comparison between measured values and simulated ones demonstrated that the optimized values of variables searched by RSM-PD and Kriging-MIGA could be both used as the optimum technological conditions since the experimental reli-ability was ensured, with the optimum technological conditions shown below: The feed position is 6, the side-draw position is 7, the combinations of liquid split ratio and vapor split ratio are [0.14, 0.5] and [0.16, 0.52], respectively. RSM-PD and Kriging-MIGA can provide the appropriate optimization methods for the dividing wall column.

  14. Patient-reported safety incidents in older patients with long-term conditions: a large cross-sectional study.

    Science.gov (United States)

    Panagioti, Maria; Blakeman, Thomas; Hann, Mark; Bower, Peter

    2017-05-30

    Increasing evidence suggests that patient safety is a serious concern for older patients with long-term conditions. Despite this, there is a lack of research on safety incidents encountered by this patient group. In this study, we sought to examine patient reports of safety incidents and factors associated with reports of safety incidents in older patients with long-term conditions. The baseline cross-sectional data from a longitudinal cohort study were analysed. Older patients (n=3378 aged 65 years and over) with a long-term condition registered in general practices were included in the study. The main outcome was patient-reported safety incidents including availability and appropriateness of medical tests and prescription of wrong types or doses of medication. Binary univariate and multivariate logistic regression analyses were undertaken to examine factors associated with patient-reported safety incidents. Safety incidents were reported by 11% of the patients. Four factors were significantly associated with patient-reported safety incidents in multivariate analyses. The experience of multiple long-term conditions (OR=1.09, 95% CI 1.05 to 1.13), a probable diagnosis of depression (OR=1.36, 95% CI 1.06 to 1.74) and greater relational continuity of care (OR=1.28, 95% CI 1.08 to 1.52) were associated with increased odds for patient-reported safety incidents. Perceived greater support and involvement in self-management was associated with lower odds for patient-reported safety incidents (OR=0.95, 95% CI 0.93 to 0.97). We found that older patients with multimorbidity and depression are more likely to report experiences of patient safety incidents. Improving perceived support and involvement of patients in their care may help prevent patient-reported safety incidents. © Article author(s) (or their employer(s) unless otherwise stated in the text of the article) 2017. All rights reserved. No commercial use is permitted unless otherwise expressly granted.

  15. [The experimental surgery and your relation with the university: an experience report].

    Science.gov (United States)

    Yamaki, Vitor Nagai; Teixeira, Renan Kleber Costa; Feijo, Daniel Haber; Silva, José Antonio Cordero da; Botelho, Nara Macedo; Henriques, Marcus Vinicius

    2014-01-01

    The laboratory of experimental surgery represents one of the key points for the university, especially in the biomedical area. This focuses on the university's tripod of primary structure that are teaching, research and extension, which are essential for formation of humanistic and practice of a good doctor that is based, first of all, on scientific evidence and critical knowledge. The importance of a laboratory of experimental surgery centers for medical education was regulated from the new curriculum guidelines of the Ministério da Educação e Cultura, establishing a mandatory laboratory within college centers. Therefore, it is of great importance to the contribution of the laboratories of experimental surgery in the curriculum, both in the discipline of surgical technics and experimental surgery, and an incentive for basic research. Thus, the study presents the experience of 15 years of the Laboratory of Experimental Surgery from Universidade do Estado do Pará, with the goal show the importance of this to medical graduation and the university.

  16. Association Between Self-Reported Bruxism and Malocclusion in University Students: A Cross-Sectional Study

    Science.gov (United States)

    Kataoka, Kota; Ekuni, Daisuke; Mizutani, Shinsuke; Tomofuji, Takaaki; Azuma, Tetsuji; Yamane, Mayu; Kawabata, Yuya; Iwasaki, Yoshiaki; Morita, Manabu

    2015-01-01

    Objectives Bruxism can result in temporomandibular disorders, oral pain, and tooth wear. However, it is unclear whether bruxism affects malocclusion. The aim of this study was to examine the association between self-reported bruxism and malocclusion in university students. Methods Students (n = 1503; 896 men and 607 women) aged 18 and 19 years were examined. Malocclusion was defined using a modified version of the Index of Orthodontic Treatment Need. The presence of buccal mucosa ridging, tooth wear, dental impression on the tongue, palatal/mandibular torus, and the number of teeth present were recorded, as well as body mass index (BMI). Additional information regarding gender, awareness of bruxism, orthodontic treatment, and oral habits was collected via questionnaire. Results The proportion of students with malocclusion was 32% (n = 481). The awareness of clenching in males with malocclusion was significantly higher than in those with normal occlusion (chi square test, P < 0.01). According to logistic regression analysis, the probability of malocclusion was significantly associated with awareness of clenching (odds ratio [OR] 2.19; 95% confidence interval [CI], 1.22–3.93) and underweight (BMI <18.5 kg/m2) (OR 1.89; 95% CI, 1.31–2.71) in males but not in females. In subgroup analyses, the probability of crowding was also significantly associated with awareness of clenching and underweight (P < 0.01) in males. Conclusions Awareness of clenching and underweight were related to malocclusion (crowding) in university male students. PMID:25865057

  17. Body integrity identity disorder crosses culture: case reports in the Japanese and Chinese literature.

    Science.gov (United States)

    Blom, Rianne M; Vulink, Nienke C; van der Wal, Sija J; Nakamae, Takashi; Tan, Zhonglin; Derks, Eske M; Denys, Damiaan

    2016-01-01

    Body integrity identity disorder (BIID) is a condition in which people do not perceive a part of their body as their own, which results in a strong desire for amputation or paralyzation. The disorder is likely to be congenital due to its very early onset. The English literature describes only Western patients with BIID, suggesting that the disorder might be merely prevalent in the West. To scrutinize this assumption, and to extend our knowledge of the etiology of BIID, it is important to trace cases with BIID in non-Western populations. Our objective was to review Chinese and Japanese literature on BIID to learn about its presence in populations with a different genetic background. A systematic literature search was performed in databases containing Japanese and Chinese research, published in the respective languages. Five Japanese articles of BIID were identified which described two cases of BIID, whereas in the Chinese databases only BIID-related conditions were found. This article reports some preliminary evidence that BIID is also present in non-Western countries. However, making general statements about the biological background of the disorder is hampered by the extremely low number of cases found. This low number possibly resulted from the extreme secrecy associated with the disorder, perhaps even more so in Asian countries.

  18. Hepatocyte metaplasia in experimental chagasic pancreatitis: preliminary report Metaplasia hepatocítica em pancreatite chagásica experimental: nota prévia

    Directory of Open Access Journals (Sweden)

    Vitorino Modesto dos Santos

    2001-06-01

    Full Text Available Beginning the study of chronic pathologic changes in pancreas of hamsters experimentally infected with Trypanosoma cruzi Vic strain, hepatocyte metaplasia was observed in one animal from infected group. This is the first report of oncocytes in Chagas' disease, which could be due to aberrant regenerative response to pancreas inflammatory process.Iniciando estudo de alterações patológicas crônicas no pâncreas de hamsters experimentalmente infectados com a cepa Vic de Trypanosoma cruzi, metaplasia oncocítica foi observada em um dos animais infectados. Este é o primeiro relato de oncocitos na doença de Chagas, que poderiam decorrer de resposta regenerativa aberrante ao processo inflamatório pancreático.

  19. Going once, going twice, reported! Cartel activity and the effectiveness of antitrust policies in experimental auctions

    NARCIS (Netherlands)

    Hinloopen, J.; Onderstal, S.

    2014-01-01

    We experimentally examine the effectiveness of antitrust policies against bidding rings in the English auction (EN) and the first-price sealed-bid auction (FP). We consider both traditional antitrust policy (without a leniency program) and modern antitrust policy (with a leniency program). In EN, ne

  20. Going once, going twice, reported!: cartel activity and the effectiveness of leniency programs in experimental auctions

    NARCIS (Netherlands)

    Hinloopen, J.; Onderstal, S.

    2009-01-01

    We experimentally examine the effectiveness of a leniency program against bidding rings in two commonly used auctions: the English auction (EN) and the first-price sealed-bid auction (FPSB). Our results show that the leniency program does not affect the average winning bid, nor the average winning c

  1. Experimental hydrogen-fueled automotive engine design data-base project. Volume 2. Main technical report

    Energy Technology Data Exchange (ETDEWEB)

    Swain, M.R.; Adt, R.R. Jr.; Pappas, J.M.

    1983-05-01

    Operational performance and emissions characteristics of hydrogen-fueled engines are reviewed. The project activities are reviewed including descriptions of the test engine and its components, the test apparatus, experimental techniques, experiments performed and the results obtained. Analyses of other hydrogen engine project data are also presented and compared with the results of the present effort.

  2. Going once, going twice, reported! Cartel activity and the effectiveness of antitrust policies in experimental auctions

    NARCIS (Netherlands)

    Hinloopen, J.; Onderstal, S.

    2014-01-01

    We experimentally examine the effectiveness of antitrust policies against bidding rings in the English auction (EN) and the first-price sealed-bid auction (FP). We consider both traditional antitrust policy (without a leniency program) and modern antitrust policy (with a leniency program). In EN,

  3. Going once, going twice, reported!: cartel activity and the effectiveness of leniency programs in experimental auctions

    NARCIS (Netherlands)

    Hinloopen, J.; Onderstal, S.

    2009-01-01

    We experimentally examine the effectiveness of a leniency program against bidding rings in two commonly used auctions: the English auction (EN) and the first-price sealed-bid auction (FPSB). Our results show that the leniency program does not affect the average winning bid, nor the average winning

  4. Going once, going twice, reported! Cartel activity and the effectiveness of antitrust policies in experimental auctions

    NARCIS (Netherlands)

    Hinloopen, Jeroen; Onderstal, Sander

    We experimentally examine the effectiveness of antitrust policies against bidding rings in the English auction (EN) and the first-price sealed-bid auction (FP). We consider both traditional antitrust policy (without a leniency program) and modern antitrust policy (with a leniency program). In EN,

  5. Cross-linked Polyelectrolyte and Its Function in Adsorption of Fluid and Excess Nitrogen Waste Products: an Experimental Study on Dialysate Effluent Fluid.

    Science.gov (United States)

    Tayebi Khosroshahi, Hamid; Abedi, Behzad; Daneshvar, Sabalan; Alizadeh, Effat; Khalilzadeh, Mohammadreza; Abedi, Yaghoub

    2017-07-01

    One of the most important issues in patients with chronic kidney disease is fluid retention and volume overload accompanied by retention of nitrogenous waste products and some electrolytes. Bowel fluid contains high levels of urea, creatinine, uric acid, and electrolytes, which make it a potential candidate for intestinal excretion of nitrogen wastes and electrolytes. Cross-linked polyelectrolyte (CLP) is a polymer that, given orally, absorbs excess fluid, electrolyte, and nitrogenous waste products. In an experimental study on 30 hemodialysis patients, the effect of CLP on adsorption of fluid, urea, creatinine, uric acid, sodium, and potassium were evaluated. For this purpose, 500 mL of effluent fluid of each patient were collected at the 1st hour of dialysis. The concentrations of the abovementioned products were measured by standard methods. Then the dialysate effluent samples were treated with 6 g of CLP and incubated for 4 hours at 37°C. Up to 80% of effluent fluid water was adsorbed by CLP. There were significant reductions in urea, creatinine, uric acid, and sodium levels in the remaining effluent fluid (P substitute for conventional dialysis methods, especially hemodialysis.

  6. Influence of crossed electric and quantizing magnetic fields on the Einstein relation in nonlinear optical, optoelectronic and related materials: Simplified theory, relative comparison and suggestion for experimental determination

    Energy Technology Data Exchange (ETDEWEB)

    Pahari, S. [Administration Department, Jadavpur University, Kolkata 700 032 (India); Bhattacharya, S. [Nano Scale Device Research Laboratory, Centre for Electronics Design and Technology, Indian Institute of Science, Bangalore 560 012 (India); De, D. [Department of Computer Science and Engineering, West Bengal University of Technology, BF 142, Sector I, Kolkata 700 064, West Bengal (India); Adhikari, S.M.; Niyogi, A. [Department of Electronic Science, University of Calcutta, 92, Acharya Prafulla Chandra Road, Kolkata 70009 (India); Dey, A. [Department of Electronics, Kalyani Government of Engineering College, Kalyani, Nadia (India); Paitya, N. [Department of Electronic Science, University of Calcutta, 92, Acharya Prafulla Chandra Road, Kolkata 70009 (India); Saha, S.C. [Department of Electronics, Mallabhum Institute of Technology, Brajaradhanagar, Gosanipur, Bankura (India); Ghatak, K.P., E-mail: kamakhyaghatak@yahoo.co.i [Department of Electronic Science, University of Calcutta, 92, Acharya Prafulla Chandra Road, Kolkata 70009 (India); Bose, P.K. [National Institute of Technology, Agartala, Jirania, Tripura (West) 799055 (India)

    2010-09-15

    An attempt is made to study the Einstein relation for the diffusivity-to-mobility ratio (DMR) under crossed fields' configuration in nonlinear optical materials on the basis of a newly formulated electron dispersion law by incorporating the crystal field in the Hamiltonian and including the anisotropies of the effective electron mass and the spin-orbit splitting constants within the framework of kp formalisms. The corresponding results for III-V, ternary and quaternary compounds form a special case of our generalized analysis. The DMR has also been investigated for II-VI and stressed materials on the basis of various appropriate dispersion relations. We have considered n-CdGeAs{sub 2}, n-Hg{sub 1-x}Cd{sub x}Te, n-In{sub 1-x}Ga{sub x}As{sub y}P{sub 1-y} lattice matched to InP, p-CdS and stressed n-InSb materials as examples. The DMR also increases with increasing electric field and the natures of oscillations are totally band structure dependent with different numerical values. It has been observed that the DMR exhibits oscillatory dependences with inverse quantizing magnetic field and carrier degeneracy due to the Subhnikov-de Haas effect. An experimental method of determining the DMR for degenerate materials in the present case has been suggested.

  7. Beneficial cross-protection of allergen-specific immunotherapy on airway eosinophilia using unrelated or a partial repertoire of allergen(s) implicated in experimental feline asthma.

    Science.gov (United States)

    Reinero, Carol; Lee-Fowler, Tekla; Chang, Chee-Hoon; Cohn, Leah; Declue, Amy

    2012-06-01

    The study hypothesis was that in experimentally asthmatic cats rush immunotherapy (RIT) using allergens not completely matched with sensitizing allergen(s) would at least partially attenuate the asthmatic phenotype and modulate the aberrant immune response. In phase I, cats sensitized to Bermuda grass allergen (BGA), house dust mite allergen (HDMA) or placebo received BGA RIT. In phase II, cats dually sensitized to BGA and HDMA received RIT using BGA, HDMA or placebo. Efficacy of RIT was assessed using percentage bronchoalveolar lavage fluid (BALF) eosinophils. Additionally, a variety of immunologic assays were performed. Eosinophilic airway inflammation significantly decreased over time in asthmatic cats given RIT using sensitizing allergen or unrelated allergen (P<0.001). In dually sensitized cats, single allergen RIT but not placebo reduced airway eosinophilia (P=0.038). Differences in allergen-specific lymphocyte proliferation, in the number of IL-10 producing cells and in the percentage T regulatory cells were detected between asthmatic cats getting RIT and controls. Cross-protection manifested by reduced airway eosinophilia was noted in cats treated with RIT allergens which did not completely match allergen used in asthma induction. However, the mechanism of immunologic tolerance may differ when improperly matched allergens to the sensitizing allergens are used in RIT.

  8. Comparison of experimental and theoretical fully differential cross sections for single ionization of the 2 s and 2 p states of Li by O8 + ions

    Science.gov (United States)

    Ghanbari-Adivi, Ebrahim; Fischer, Daniel; Ferreira, Natalia; Goullon, Johannes; Hubele, Renate; LaForge, Aaron; Schulz, Michael; Madison, Don

    2016-08-01

    This paper presents a full three-dimensional (3D) comparison between experiment and theory for 24 MeV O8 + single ionization of the 2 s ground state of lithium and the 2 p excited state. Two theoretical approximations are examined: the three-body continuum distorted-wave (3DW) and three-body continuum distorted-wave-eikonal initial state (3DW-EIS). Normally, there is a significant difference between these two approaches and the 3DW-EIS is in much better agreement with experiment. In this case, there is very little difference between the two approaches and both are in very good agreement with experiment. For the excited 2 p state, the 3D cross sections would exhibit a mirror symmetry about the scattering plane if all three magnetic sublevels were excited in equal proportions. For the present experiment, the 2 p+1(m =+1 ) sublevel is dominantly excited (quantization axis is the incident beam direction) and for this case there is a magnetic dichroism which is observed both experimentally and theoretically.

  9. Survey of basic medical researchers on the awareness of animal experimental designs and reporting standards in China

    Science.gov (United States)

    Xu, Jia-ke; Wu, Wen-jing; Liu, Hong-yan; Kou, Cheng-kun; Liu, Na; Zhao, Lulu

    2017-01-01

    Objective To investigate the awareness and use of the Systematic Review Center for Laboratory Animal Experimentation’s (SYRCLE) risk-of-bias tool, the Animal Research: Reporting of In Vivo Experiments (ARRIVE) reporting guidelines, and Gold Standard Publication Checklist (GSPC) in China in basic medical researchers of animal experimental studies. Methods A national questionnaire-based survey targeting basic medical researchers was carried in China to investigate the basic information and awareness of SYRCLE’s risk of bias tool, ARRIVE guidelines, GSPC, and animal experimental bias risk control factors. The EpiData3.1 software was used for data entry, and Microsoft Excel 2013 was used for statistical analysis in this study. The number of cases (n) and percentage (%) of classified information were statistically described, and the comparison between groups (i.e., current students vs. research staff) was performed using chi-square test. Results A total of 298 questionnaires were distributed, and 272 responses were received, which included 266 valid questionnaires (from 118 current students and 148 research staff). Among the 266 survey participants, only 15.8% was aware of the SYRCLE’s risk of bias tool, with significant difference between the two groups (P = 0.003), and the awareness rates of ARRIVE guidelines and GSPC were only 9.4% and 9.0%, respectively; 58.6% survey participants believed that the reports of animal experimental studies in Chinese literature were inadequate, with significant difference between the two groups (P = 0.004). In addition, only approximately 1/3 of the survey participants had read systematic reviews and meta-analysis reports of animal experimental studies; only 16/266 (6.0%) had carried out/participated in and 11/266 (4.1%) had published systematic reviews/meta-analysis of animal experimental studies. Conclusions The awareness and use rates of SYRCLE’s risk-of-bias tool, the ARRIVE guidelines, and the GSPC were low among Chinese

  10. Theoretical calculations of the total and ionization cross sections for electron impact on some simple biomolecules

    Science.gov (United States)

    Vinodkumar, Minaxi; Joshipura, K. N.; Limbachiya, Chetan; Mason, Nigel

    2006-08-01

    In this paper we report total cross sections (TCS), QT , total elastic cross sections, Qel , and total ionization cross section, Qion for electron impact on water, formaldehyde, formic acid, and the formyl radical from circa 15eVto2KeV . The results are compared where possible, with previous theoretical and experimental results and, in general, are found to be in good agreement. The total and elastic cross sections for HCHO, HCOOH, and CHO radical are reported.

  11. Theoretical calculations of the total and ionization cross sections for electron impacton some simple biomolecules

    OpenAIRE

    Vinodkumar, M.; Joshipura, K. N.; Limbachiya, C.; Mason, Nigel

    2006-01-01

    In this paper we report total cross sections TCS, QT, total elastic cross sections, Qel, and total ionization cross section, Qion for electron impact on water, formaldehyde, formic acid, and the formyl radical from circa 15 eV to 2 KeV. The results are compared where possible, with previous theoretical and experimental results and, in general, are found to be in good agreement. The total and elastic cross sections for HCHO, HCOOH, and CHO radical are reported.

  12. Standard of reporting animal-based experimental research in Indian Journal of Pharmacology

    Directory of Open Access Journals (Sweden)

    Umme Aiman

    2015-01-01

    Conclusion: Present study demonstrates relatively good reporting standards in animal studies published in IJP. The items which need to be improved are randomization, blinding, sample size calculation, stating the limitations of study, sources of support and conflict of interest. The knowledge shared in the present paper could be used for better reporting of animal based experiments.

  13. Experimental Physics Division of the Los Alamos Project. Progress report No. 4

    Energy Technology Data Exchange (ETDEWEB)

    1943-09-01

    Included in this semi-monthly report written in 1943 are progress with neutron beams, neutron absorption in enriched materials, equipment operation and maintenance reports of the cyclotron neutron source facility, and instrumentation maintenance activities of individuals in the cyclotron group. (GHT)

  14. Reporting of cross-over clinical trials of analgesic treatments for chronic pain: Analgesic, Anesthetic, and Addiction Clinical Trial Translations, Innovations, Opportunities, and Networks systematic review and recommendations.

    Science.gov (United States)

    Gewandter, Jennifer S; McDermott, Michael P; McKeown, Andrew; Hoang, Kim; Iwan, Katarzyna; Kralovic, Sarah; Rothstein, Daniel; Gilron, Ian; Katz, Nathaniel P; Raja, Srinivasa N; Senn, Stephen; Smith, Shannon M; Turk, Dennis C; Dworkin, Robert H

    2016-11-01

    Cross-over trials are typically more efficient than parallel group trials in that the sample size required to yield a desired power is substantially smaller. It is important, however, to consider some issues specific to cross-over trials when designing and reporting them, and when evaluating the published results of such trials. This systematic review evaluated the quality of reporting and its evolution over time in articles of cross-over clinical trials of pharmacologic treatments for chronic pain published between 1993 and 2013. Seventy-six (61%) articles reported a within-subject primary analysis, or if no primary analysis was identified, reported at least 1 within-subject analysis, which is required to achieve the gain in power associated with the cross-over design. For 39 (31%) articles, it was unclear whether analyses conducted were within-subject or between-group. Only 36 (29%) articles reported a method to accommodate missing data (eg, last observation carried forward, n = 29), and of those, just 14 included subjects in the analysis who provided data from only 1 period. Of the articles that identified a within-subject primary analysis, 21 (51%) provided sufficient information for the results to be included in a meta-analysis (ie, estimates of the within-subject treatment effect and variability). These results and others presented in this article demonstrate deficiencies in reporting of cross-over trials for analgesic treatments. Clearer reporting in future trials could improve readers' ability to critically evaluate the results, use these data in meta-analyses, and plan future trials. Recommendations for proper reporting of cross-over trials that apply to any condition are provided.

  15. Physics modeling support for the International Thermonuclear Experimental Reactor: Final report

    Energy Technology Data Exchange (ETDEWEB)

    1988-09-30

    There are two major sections to this report. The first section of the report is an executive summary of the work done this year. For each task, the major results are condensed for the reader's convenience. The major result of each memo, report or presentation is summarized briefly in this section. The second section of the report is a collection of appendices containing reports, memos, and presentations written this year. Here, the interested reader can investigate any topic discussed in the summary in more detail. The documentation is presented in chronological order, and we would like to note that the content of later documents may supercede that of earlier ones. The summaries are divided into sections, corresponding to the tasks outlined in the original proposal for the work. These sections are: MUMAK code development and application; Alfven wave stability problem; TETRA systems code development and application; lower hybrid heating and current drive; and advanced blanket modeling.

  16. Analytical and experimental study of instabilities in buoyancy-driven convection in porous media. Progress report, August 1991--April 1992

    Energy Technology Data Exchange (ETDEWEB)

    Georgiadis, J.G.; Behringer, R.; Johnson, G.A.

    1992-04-01

    During the second year of support under the DOE grant, significant progress was made in two directions: (1) Visualization of structure and tow field in randomly packed beds via Magnetic Resonance Imaging, and (2) Shadowgraphic visualization of natural convection in porous systems. This report describes the activities in detail, cite publications which resulted from this project, and conclude with plans for the last phase of the experimental investigation.

  17. An experimental predeployment training program improves self-reported patient treatment confidence and preparedness of Army combat medics.

    Science.gov (United States)

    Gerhardt, Robert T; Hermstad, Erik L; Oakes, Michael; Wiegert, Richard S; Oliver, Jeffrey

    2008-01-01

    To develop and assess impact of a focused review of International Trauma Life Support (ITLS) and combat casualty care with hands-on procedure training for U.S. Army medics deploying to Iraq. The setting was a U.S. Army Medical Department Center and School and Camp Eagle, Iraq. Investigators developed and implemented a command-approved prospective educational intervention with a post hoc survey. Subjects completed a three-day course with simulator and live-tissue procedure laboratories. At deployment's end, medics were surveyed for experience, confidence, and preparedness in treating various casualty severity levels. Investigators used two-tailed t-test with unequal variance for continuous data and chi-square for categorical data. Twenty-nine medics deployed. Eight completed the experimental program. Twenty-one of 25 (84%) available medics completed the survey including six of the eight (75%) experimental medics. The experimental group reported significantly greater levels of preparedness and confidence treating "minimal," "delayed," and "immediate" casualties at arrival in Iraq. These differences dissipated progressively over the time course of the deployment. This experimental program increased combat medic confidence and perceived level of preparedness in treating several patient severity levels. Further research is warranted to determine if the experimental intervention objectively improves patient care quality and translates into lives saved early in deployment.

  18. Methods and benefits of experimental seismic evaluation of nuclear power plants. Final report

    Energy Technology Data Exchange (ETDEWEB)

    1979-07-01

    This study reviews experimental techniques, instrumentation requirements, safety considerations, and benefits of performing vibration tests on nuclear power plant containments and internal components. The emphasis is on testing to improve seismic structural models. Techniques for identification of resonant frequencies, damping, and mode shapes, are discussed. The benefits of testing with regard to increased damping and more accurate computer models are oulined. A test plan, schedule and budget are presented for a typical PWR nuclear power plant.

  19. The freshwater snail lymnaea rubiginosa as an experimental host of Angiostrongylus malaysiensis: a preliminary report.

    Science.gov (United States)

    Dondero, T J; Lim, B L

    1976-03-01

    Preliminary studies have shown that Lymnaea rubiginosa, a common fresh-water snail in Peninsular Malaysia, which is easily colonized and reared in the laboratory, is a capable experimental intermediate host for Angiostrongylus malaysiensis. Overall 73% of the snails tested became infected following 6 hours exposure to infective rat faeces. Higher infection rates, up to 100%, and heavier worm loads, occurred among the larger sized snails. Snail attrition was low except when very heavy worm loads were acquired.

  20. Final Technical Report: Numerical and Experimental Investigation of Turbulent Transport Control via Shaping of Radial Plasma Flow Profiles

    Energy Technology Data Exchange (ETDEWEB)

    Schuster, Eugenio

    2014-05-02

    The strong coupling between the different physical variables involved in the plasma transport phenomenon and the high complexity of its dynamics call for a model-based, multivariable approach to profile control where those predictive models could be exploited. The overall objective of this project has been to extend the existing body of work by investigating numerically and experimentally active control of unstable fluctuations, including fully developed turbulence and the associated cross-field particle transport, via manipulation of flow profiles in a magnetized laboratory plasma device. Fluctuations and particle transport can be monitored by an array of electrostatic probes, and Ex B flow profiles can be controlled via a set of biased concentric ring electrodes that terminate the plasma column. The goals of the proposed research have been threefold: i- to develop a predictive code to simulate plasma transport in the linear HELCAT (HELicon-CAThode) plasma device at the University of New Mexico (UNM), where the experimental component of the proposed research has been carried out; ii- to establish the feasibility of using advanced model-based control algorithms to control cross-field turbulence-driven particle transport through appropriate manipulation of radial plasma flow profiles, iii- to investigate the fundamental nonlinear dynamics of turbulence and transport physics. Lehigh University (LU), including Prof. Eugenio Schuster and one full-time graduate student, has been primarily responsible for control-oriented modeling and model-based control design. Undergraduate students have also participated in this project through the National Science Foundation Research Experience for Undergraduate (REU) program. The main goal of the LU Plasma Control Group has been to study the feasibility of controlling turbulence-driven transport by shaping the radial poloidal flow profile (i.e., by controlling flow shear) via biased concentric ring electrodes.

  1. Assessment of experimental d-PIGE γ-ray production cross sections for 12C, 14N and 16O and comparison with absolute thick target yields

    Science.gov (United States)

    Csedreki, L.; Halász, Z.; Kiss, Á. Z.

    2016-08-01

    Measured differential cross sections for deuteron induced γ-ray emission from the reactions 12C(d,pγ)13C, (Eγ = 3089 keV), 14N(d,pγ)15N (Eγ = 8310 keV) and 16O(d,pγ)17O (Eγ = 871 keV) available in the literature were assessed. In order to cross check the assessed γ-ray production cross section data, thick target γ-yields calculated from the differential cross sections were compared with available measured thick target yields. Recommended differential cross section data for each reaction were deduced for particle induced γ-ray emission (PIGE) applications.

  2. A cross-sectional study to identify organisational processes associated with nurse-reported quality and patient safety

    Science.gov (United States)

    Tvedt, Christine; Sjetne, Ingeborg Strømseng; Helgeland, Jon; Bukholm, Geir

    2012-01-01

    Objectives The purpose of this study was to identify organisational processes and structures that are associated with nurse-reported patient safety and quality of nursing. Design This is an observational cross-sectional study using survey methods. Setting Respondents from 31 Norwegian hospitals with more than 85 beds were included in the survey. Participants All registered nurses working in direct patient care in a position of 20% or more were invited to answer the survey. In this study, 3618 nurses from surgical and medical wards responded (response rate 58.9). Nurses' practice environment was defined as organisational processes and measured by the Nursing Work Index Revised and items from Hospital Survey on Patient Safety Culture. Outcome measures Nurses' assessments of patient safety, quality of nursing, confidence in how their patients manage after discharge and frequency of adverse events were used as outcome measures. Results Quality system, nurse–physician relation, patient safety management and staff adequacy were process measures associated with nurse-reported work-related and patient-related outcomes, but we found no associations with nurse participation, education and career and ward leadership. Most organisational structures were non-significant in the multilevel model except for nurses’ affiliations to medical department and hospital type. Conclusions Organisational structures may have minor impact on how nurses perceive work-related and patient-related outcomes, but the findings in this study indicate that there is a considerable potential to address organisational design in improvement of patient safety and quality of care. PMID:23263021

  3. Short report: screening for Trypanosoma cruzi in the blood supply by the Red Cross blood bank in Quito, Ecuador.

    Science.gov (United States)

    Grijalva, M J; Chiriboga, R; Racines, J R; Escalante, L; Rowland, E C

    1997-12-01

    The status of Chagas' disease in Ecuador is not clear. In response to reports suggesting the possibility of transfusion-associated transmission of Chagas' disease in the blood bank in Quito, the Ecuadorian Red Cross in collaboration with the Instituto Nacional de Higiene, Zona Norte and the Tropical Disease Institute of Ohio University implemented a pilot Chagas' disease screening of the donated blood in the Quito blood bank. The results of the screening showed a low incidence of seropositivity among the donors (0.01% in 1994, 0.04% in 1995, and 0.02% in 1996) to the Quito blood bank and a higher seropositivity in samples donated to smaller blood banks (0.4% in 1994, 0.28% in 1995, and 0.13% in 1996) located in areas considered endemic, as well as from at least two areas previously considered nonendemic for Chagas' disease. This report highlights the need for a comprehensive evaluation of the prevalence and distribution of Chagas' disease in Ecuador.

  4. Report on experimental research and best practice for surface treatment solutions

    DEFF Research Database (Denmark)

    Gavillet, Jerome; Tosello, Guido; Gasparin, S.

    2011-01-01

    The present deliverable contains the report of the work and results achieved within the framework of WP 2.3 / Task 2.3.2 on “Surface treatments and thin layers/films deposition to improve process output”....

  5. The University of Virginia Experimental and Theoretical High Energy Physics Closeout Report

    Energy Technology Data Exchange (ETDEWEB)

    Principal Investigator: Harry B. Thacker

    2012-08-13

    The work covered in this report includes a joint project on using gauge-gravity duality to discover qualitatively new results on jet quenching in strongly-coupled QCD-like plasmas. Other topics addressed by the theoretical work include jet stopping and energy loss in weakly-coupled plasmas, perturbative QCD amplitudes, AdS/CMT, dynamical electroweak symmetry breaking with a heavy fourth generation, electroweak-scale {nu}{sub R} model, vacuum topological structure and chiral dynamics in strongly coupled gauge theory. Effort committed to the CMS experiment is reported, particularly the management, maintenance, operation and upgrade of the CMS electromagnetic detector (ECAL). Activities in various physics analyses including Supersymmetry, Higgs, Top, and QCD analyses are reported. Physics projects covering wide areas of physics at the LHC are reported. CY2010 saw the accumulation of a data sample corresponding to approximately 36 pb{sup -1}; in CY 2011 the data sample swelled to more than 5 fb{sup -1}. The UVa CMS analysis efforts are focused on this large 2011 data sample in a suite of crucial measurements and searches. KTeV physics activities are reported. Efforts are reported pertaining to several experiments, including: HyperCP, CKM, MIPP, D, NO {nu}A, and Mu2e.

  6. High Sodium Intake Is Associated With Self-Reported Rheumatoid Arthritis: A Cross Sectional and Case Control Analysis Within the SUN Cohort.

    Science.gov (United States)

    Salgado, Eva; Bes-Rastrollo, Maira; de Irala, Jokin; Carmona, Loreto; Gómez-Reino, Juan J

    2015-09-01

    Sodium intake is a potential environmental factor for immune-mediated inflammatory diseases. The aim of this study is to investigate the association of sodium intake with rheumatoid arthritis. We performed a cross-sectional study nested in a highly educated cohort investigating dietary habits as determinants of disease. Daily sodium intake in grams per day was estimated from a validated food frequency questionnaire. We identified prevalent self-reported cases of rheumatoid arthritis. Logistic regression models were used to estimate the odds ratio for rheumatoid arthritis by sodium intake adjusting for confounders. Linear trend tests and interactions between variables were explored. Sensitivity analyses included age- and sex-matched case-control study, logistic multivariate model adjusted by residuals, and analysis excluding individuals with prevalent diabetes or cardiovascular disease. The effective sample size was 18,555 individuals (mean age 38-years old, 60% women) including 392 self-reported rheumatoid arthritis. Median daily sodium intake (estimated from foods plus added salt) was 3.47 (P25-75: 2.63-4.55) grams. Total sodium intake in the fourth quartile showed a significant association with rheumatoid arthritis (fully adjusted odds ratio 1.5; 95% CI 1.1-2.1, P for trend = 0.02). Never smokers with high sodium intake had higher association than ever smokers with high sodium intake (P for interaction = 0.007). Dose-dependent association was replicated in the case-control study. High sodium intake may be associated with a diagnosis of rheumatoid arthritis. This confirms previous clinical and experimental research.

  7. Experimental Design for CMIP6: Aerosol, Land Use, and Future Scenarios Final Report

    Energy Technology Data Exchange (ETDEWEB)

    Arnott, James [AGCI

    2015-10-30

    The Aspen Global Change Institute hosted a technical science workshop entitled, “Experimental design for CMIP6: Aerosol, Land Use, and Future Scenarios,” on August 3-8, 2014 in Aspen, CO. Claudia Tebaldi (NCAR) and Brian O’Neill (NCAR) served as co-chairs for the workshop. The Organizing committee also included Dave Lawrence (NCAR), Jean-Francois Lamarque (NCAR), George Hurtt (University of Maryland), & Detlef van Vuuren (PBL Netherlands Environmental Change). The meeting included the participation of 22 scientists representing many of the major climate modeling centers for a total of 110 participant days.

  8. Association between self-reported academic performance and risky sexual behavior among Ugandan university students- a cross sectional study.

    Science.gov (United States)

    Mehra, Devika; Kyagaba, Emmanuel; Ostergren, Per-Olof; Agardh, Anette

    2014-04-16

    Little is known about the association between self-reported academic performance and risky sexual behaviors and if this differs by gender, among university students. Academic performance can create psychological pressure in young students. Poor academic performance might thus potentially contribute to risky sexual behavior among university students. The aim of this study was to investigate the association between self-reported academic performance and risky sexual behaviors, and whether gender affects this relationship among Ugandan university students. In 2010, 1,954 students participated in a cross-sectional survey, conducted at Mbarara University of Science and Technology in southwestern Uganda (72% response rate). Multivariate logistic regression analysis was used for the analysis. 1,179 (60.3%) students in our study sample reported having debuted sexually. Of these 440 (42.2%) used condoms inconsistently with new sexual partners, and 344 (33.6%) had had multiple sexual partners. We found a statistically significant association between poor academic performance and inconsistent condom use with a new sex partner and this association remained significant even after adjusting for all the potential confounders. There was no such association detected regarding multiple sexual partners. We also found that gender modified the effect of poor academic performance on inconsistent condom use. Females, who were poor academic performers, were found to be at a higher risk of inconsistent condom use than their male counterparts. Interventions should be designed to provide extra support to poor academic performers, which may improve their performance and self-esteem, which in turn might reduce their risky sexual behaviors.

  9. A cross-sectional study assessing the self-reported weight loss strategies used by adult Australian general practice patients

    Directory of Open Access Journals (Sweden)

    Yoong Sze

    2012-05-01

    Full Text Available Abstract Background Obesity is a significant public health concern. General practitioners (GPs see a large percentage of the population and are well placed to provide weight management advice. There has been little examination of the types of weight loss strategies used in Australian general practice patients. This cross-sectional study aimed to describe the proportion of normal weight, overweight and obese general practice patients who report trying to lose weight in the past 12 months, the types of weight loss strategies and diets used as well as the proportion consulting their GP prior to trying to lose weight. Methods Adult patients completed a touchscreen computer survey while waiting for their appointment. Responses from 1335 patients in twelve Australian practices are reported. Results A larger proportion of obese patients had tried to lose weight in the past 12 months (73% compared to those who were overweight (55% and normal weight (33%. The most commonly used strategy used was changing diet and increasing exercise in all BMI categories. Less than 10% used strategies such as prescription medication, over the counter supplements and consulted a weight loss specialist. Low calorie and low fat diets were the most frequently reported diets used to lose weight in those who were normal weight, overweight and obese. Overall, the proportion seeking GP advice was low, with 12% of normal weight, 15% of overweight and 43% of obese patients consulting their GP prior to trying to lose weight. Conclusions A large proportion of overweight or obese patients have tried to lose weight and utilized strategies such as changing diet and increasing exercise. Most attempts however were unassisted, with low rates of consultation with GPs and weight loss specialists. Ways to assist overweight and obese general practice patients with their weight loss attempts need to be identified.

  10. Calculational and Experimental Investigations of the Pressure Effects on Radical - Radical Cross Combinations Reactions: C2H5 + C2H3

    Science.gov (United States)

    Fahr, Askar; Halpern, Joshua B.; Tardy, Dwight C.

    2007-01-01

    Pressure-dependent product yields have been experimentally determined for the cross-radical reaction C2H5 + C2H3. These results have been extended by calculations. It is shown that the chemically activated combination adduct, 1-C4H8*, is either stabilized by bimolecular collisions or subject to a variety of unimolecular reactions including cyclizations and decompositions. Therefore the "apparent" combination/disproportionation ratio exhibits a complex pressure dependence. The experimental studies were performed at 298 K and at selected pressures between about 4 Torr (0.5 kPa) and 760 Torr (101 kPa). Ethyl and vinyl radicals were simultaneously produced by 193 nm excimer laser photolysis of C2H5COC2H3 or photolysis of C2H3Br and C2H5COC2H5. Gas chromatograph/mass spectrometry/flame ionization detection (GC/MS/FID) were used to identify and quantify the final reaction products. The major combination reactions at pressures between 500 (66.5 kPa) and 760 Torr are (1c) C2H5 + C2H3 yields 1-butene, (2c) C2H5 + C2H5 yields n-butane, and (3c) C2H3 + C2H3 yields 1,3-butadiene. The major products of the disproportionation reactions are ethane, ethylene, and acetylene. At moderate and lower pressures, secondary products, including propene, propane, isobutene, 2-butene (cis and trans), 1-pentene, 1,4-pentadiene, and 1,5-hexadiene are also observed. Two isomers of C4H6, cyclobutene and/or 1,2-butadiene, were also among the likely products. The pressure-dependent yield of the cross-combination product, 1-butene, was compared to the yield of n-butane, the combination product of reaction (2c), which was found to be independent of pressure over the range of this study. The [ 1-C4H8]/[C4H10] ratio was reduced from approx.1.2 at 760 Torr (101 kPa) to approx.0.5 at 100 Torr (13.3 kPa) and approx.0.1 at pressures lower than about 5 Torr (approx.0.7 kPa). Electronic structure and RRKM calculations were used to simulate both unimolecular and bimolecular processes. The relative importance

  11. Advanced Large Scale Cross Domain Temporal Topic Modeling Algorithms to Infer the Influence of Recent Research on IPCC Assessment Reports

    Science.gov (United States)

    Sleeman, J.; Halem, M.; Finin, T.; Cane, M. A.

    2016-12-01

    Approximately every five years dating back to 1989, thousands of climate scientists, research centers and government labs volunteer to prepare comprehensive Assessment Reports for the Intergovernmental Panel on Climate Change. These are highly curated reports distributed to 200 nation policy makers. There have been five IPCC Assessment Reports to date, the latest leading to a Paris Agreement in Dec. 2016 signed thus far by 172 nations to limit the amount of global Greenhouse gases emitted to producing no more than a 20 C warming of the atmosphere. These reports are a living evolving big data collection tracing 30 years of climate science research, observations, and model scenario intercomparisons. They contain more than 200,000 citations over a 30 year period that trace the evolution of the physical basis of climate science, the observed and predicted impact, risk and adaptation to increased greenhouse gases and mitigation approaches, pathways, policies for climate change. Document-topic and topic-term probability distributions are built from the vocabularies of the respective assessment report chapters and citations. Using Microsoft Bing, we retrieve 150,000 citations referenced across chapters and convert those citations to text. Using a word n-gram model based on a heterogeneous set of climate change terminology, lemmatization, noise filtering and stopword elimination, we calculate word frequencies for chapters and citations. Temporal document sets are built based on the assessment period. In addition to topic modeling, we employ cross domain correlation measures. Using the Jensen-Shannon divergence and Pearson correlation we build correlation matrices for chapter and citations topics. The shared vocabulary acts as the bridge between domains resulting in chapter-citation point pairs in space. Pairs are established based on a document-topic probability distribution. Each chapter and citation is associated with a vector of topics and based on the n most probable

  12. Mandatory quality reports in Germany from the hospitals’ point of view: a cross-sectional observational study

    Directory of Open Access Journals (Sweden)

    Auras Silke

    2012-10-01

    Full Text Available Abstract Background Public reporting of hospital quality is to enable providers, patients and the public to make comparisons regarding the quality of care and thus contribute to informed decisions. It stimulates quality improvement activities in hospitals and thus positively impacts treatment results. Hospitals often use publicly reported data for further internal or external purposes. As of 2005, German hospitals are obliged to publish structured quality reports (QR every two years. This gives them the opportunity to demonstrate their performance by number, type and quality in a transparent way. However, it constitutes a major burden to hospitals to generate and publish data required, and it is yet unknown if hospitals feel adequately represented and at the same time consider the effort appropriate. This study assesses hospital leaders’ judgement about the capability of QR to put legally defined aims effectively and efficiently into practice. It also explores the additional purposes hospitals use their QR for. Methods In a cross-sectional observational study, a representative random sample out of 2,064 German hospitals (N=748 was invited to assess QR via questionnaire; 333 hospitals participated. We recorded the suitability of QR for representing number, type and quality of services, the adequacy of cost and benefits (6-level Likert scales and additional purposes QR are used for (free text question. For representation purposes, the net sample was weighted for hospital size and hospital ownership (direct standardization. Data was analyzed descriptively and using inferential statistics (chi-2 test or for the purpose of generating hypotheses. Results German hospitals rated the QR as suitable to represent the number of services but less so for the type and quality of services. The cost-benefit ratio was seen as inadequate. There were no significant differences between hospitals of different size or ownership. Public hospitals additionally used

  13. Self-reported attitudes and behaviours of medical students in Pakistan regarding academic misconduct: a cross-sectional study.

    Science.gov (United States)

    Ghias, Kulsoom; Lakho, Ghulam Rehmani; Asim, Hamna; Azam, Iqbal Syed; Saeed, Sheikh Abdul

    2014-05-29

    Honesty and integrity are key attributes of an ethically competent physician. However, academic misconduct, which includes but is not limited to plagiarism, cheating, and falsifying documentation, is common in medical colleges across the world. The purpose of this study is to describe differences in the self-reported attitudes and behaviours of medical students regarding academic misconduct depending on gender, year of study and type of medical institution in Pakistan. A cross sectional study was conducted with medical students from one private and one public sector medical college. A pre-coded questionnaire about attitudes and behaviours regarding plagiarism, lying, cheating and falsifying documentation was completed anonymously by the students. A total of 465 medical students filled the questionnaire. 53% of private medical college students reported that they recognize copying an assignment verbatim and listing sources as references as wrong compared to 35% of public medical college students. 26% of private medical college students self-report this behaviour as compared to 42% of public medical college students. 22% of private versus 15% of public medical college students and 21% of students in clinical years compared to 17% in basic science years admit to submitting a fake medical certificate to justify an absence. 87% of students at a private medical college believe that cheating in an examination is wrong as compared to 66% of public medical college students and 24% self-report this behaviour in the former group as compared to 41% in the latter. 63% of clinical year students identify cheating as wrong compared to 89% of their junior colleagues. 71% of male versus 84% of female respondents believe that cheating is wrong and 42% of males compared to 23% of females admit to cheating. There are significant differences in medical students' attitudes and behaviours towards plagiarism, lying, cheating and stealing by gender, seniority status and type of institution

  14. An Experimental Analysis of Teacher/Parent Mediated Interventions for Preschoolers with Behavioral Problems. Final Report.

    Science.gov (United States)

    Kratochwill, Thomas R.; Elliott, Stephen N.; Loitz, Pamela Ann; Sladeczek, Ingred; Carlson, John

    This report discusses the outcomes of a study that tested the effectiveness and compared two different approaches of conjoint behavioral consultation using a manual versus a videotape series as the main components of training parents and teachers to treat children's behavioral difficulties. Children (n=68) exhibiting externalizing or internalizing…

  15. Animal Science Technology. An Experimental Developmental Program. Volume I, Report of the Developmental Program.

    Science.gov (United States)

    Brant, Herman G.; And Others

    In 1961, administrative personnel at Delhi College in New York observed that formal training programs for animal science technicians were virtually nonexistant. Response to this apparent need resulted in the initiation of perhaps the first 2-year Animal Science Technology Program in the nation. This two-volume report is the result of an extensive…

  16. URBAN EXTENSION, A REPORT ON EXPERIMENTAL PROGRAMS ASSISTED BY THE FORD FOUNDATION.

    Science.gov (United States)

    Ford Foundation, New York, NY.

    THIS REPORT OUTLINED THE EXPERIENCES OF EIGHT UNIVERSITIES--CALIFORNIA AT BERKELEY, DELAWARE, ILLINOIS, MISSOURI, OKLAHOMA, PURDUE, RUTGERS, AND WISCONSIN--AND A NONACADEMIC COMMUNITY DEVELOPMENT ORGANIZATION, ACTION-HOUSING, PITTSBURGH, WHICH HAD RECEIVED FORD FOUNDATION GRANTS FOR URBAN EXTENSION PROGRAMS. EACH ORGANIZATION USED THE APPROACH…

  17. Experimental particle physics. Progress report, September 16, 1991--September 30, 1992

    Energy Technology Data Exchange (ETDEWEB)

    Steinberg, R.I.; Lane, C.E.

    1992-09-01

    The goals of this research are the experimental testing of fundamental theories of physics beyond the standard model and the exploration of cosmic phenomena through the techniques of particle physics. We are working on the MACRO experiment, which employs a large-area underground detector to search fore grand unification magnetic monopoles and dark matter candidates and to study cosmic ray muons as well as low- and high-energy neutrinos; the Chooz experiment to search for reactor neutrino oscillations at a distance of 1 km from the source; a new proposal (the Perry experiment) to construct a one-kiloton liquid scintillator in the Fairport, Ohio underground facility IMB to study neutrino oscillations with a 13 km baseline; and development of technology for improved liquid scintillators and for very-low-background materials in support of the MACRO and Perry experiments and for new solar neutrino experiments.

  18. A progress report on the Malaga Bend Experimental Salinity Alleviation Project, Eddy County, New Mexico

    Science.gov (United States)

    Cox, E.R.; Havens, J.S.

    1965-01-01

    At Malaga Bend on the Pecos River in Eddy County, New Mexico, a brine aquifer about 1950 feet below the stream channel has a pressure head about 10 feet above the river bed. This aquifer normally discharges about 430 tons of dissolved minerals daily into the river of which about 370 tons was sodium chloride. The Malaga Bend Experimental Salinity Alleviation Project, authorized by the U.S. Congress in 1958, Public Law 85-333,is an attempt to determine if the salinity content of the Pecos River below Malaga Bend can be decreased by reducing the inflow of saline water into the river at Malaga Bend by pumping from the brine aquifer. Construction for the project was supervised by the Bureau of Reclamation, and the collection of data and its interpretation were the responsibility cooperatively of the U. S. Geological Survey and the Pecos River Commission.

  19. Theory of elementary particles and accelerator theory: Task C: Experimental high energy physics. Annual progress report

    Energy Technology Data Exchange (ETDEWEB)

    Brau, J.E.

    1992-12-31

    The experimental high energy physics group at the University of Oregon broadened its effort during the past year. The SLD effort extends from maintaining and operating the SLD luminosity monitor which was built at Oregon, to significant responsibility in physics analysis, such as event selection and background analysis for the left-right asymmetry measurement. The OPAL work focussed on the luminosity monitor upgrade to a silicon-tungsten calorimeter. Building on the work done at Oregon for SLD, the tungsten for this upgrade was machined by the Oregon shops and shipped to CERN for assembly. The Oregon GEM effort now concentrates on tracking, specifically silicon tracking. Oregon also has developed a silicon strip preradiator prototype, and tested it in a Brookhaven beam.

  20. Theoretical and experimental studies of elementary physics. Annual technical progress report

    Energy Technology Data Exchange (ETDEWEB)

    Bodek, A.; Ferbel, T.; Melissinos, A.C.; Olsen, S.; Slattery, P.; Tipton, P.; Das, A.; Hagen, C.R.; Rajeev, S.G.; Okubo, S.

    1992-04-30

    The experimental high energy physics program is directed toward the execution of experiments that probe the basic constituents of matter and the forces between them. These experiments are carried out at national and international accelerator facilities. At the current time, we are primarily concentrating on the following projects: Direct photon production in hadronic reactions (Fermilab E706); Production of hybrid mesons in the nuclear Coulomb field; The D-Zero experiment at the Tevatron collider; Deep inelastic neutrino- and electron-nucleon scattering at FNAL and SLAC; Nonlinear QED at critical field strengths at SLAC; The Experiments at KEK (AMY, 17keV neutrino); The CDF experiment at the Tevatron collider; and SSC-related detector R&D on scintillating tile- and diamond-based calorimetry and microstrip tracking detectors.

  1. Microwave experimental studies of laser fusion. Final report, 1 August 1982-31 July 1983

    Energy Technology Data Exchange (ETDEWEB)

    Luhmann, N.C. Jr.

    1983-05-01

    The aim of the UCLA microwave modeling program is to employ high power (0.1 to 10 MW) microwave sources (lambda/sub 0/ = 10 cm) and well-diagnosed low density (n/sub e/ approx. = 10/sup 10/-10/sup 12/cm/sup -3/) plasma devices to perform experimental simulations of important aspects of the laser-pellet interaction. The purpose of these simulations is three-fold. First, microwave modeling permits one to isolate important physics issues. An example is our recent confirmation of the role of ion tail heating in SBS saturation. The second is to inexpensively test new ideas (i.e. finite bandwidth control). The third purpose is to develop a vehicle in which testing and normalization of computer codes can be done. This obviously permits one to gain more confidence in scaling code results to other wavelengths, intensities, etc.

  2. Progress report of a research program in experimental and theoretical high energy physics, 1 June 1992--May 31, 1993

    Energy Technology Data Exchange (ETDEWEB)

    Brandenberger, R.; Cutts, D.; Fried, H.M. [and others

    1993-06-01

    The main emphasis in the theoretical program has been in the area of string theory; also investigated were confinement and other aspects of QCD, electroweak symmetry breaking, and electroweak baryogenesis. The research program in computational physics concentrated on the development of the source Galerkin method of numerical quantum field theory. One portion of the experimental program dealt with interactions of leptons and hadrons from accelerator and strophysics sources. A description of the Large Volume Detector at Gran Sasso and its use as a stellar collapse monitor is given, along with an account of research and development on resistive plate counters. The rest of the experimental program concerns hadron collider and neutrino physics, with major emphasis on the D0 experiment at the TeVatron. The commissioning of the D0 detector and its operation are described, along with D0 analysis. Also reported is a novel cryogenic technique utilizing superfluid helium for neutrino calorimetry. 122 refs., 7 tabs., 23 figs.

  3. KAERI charged particle cross section library for radioisotope production

    CERN Document Server

    Chang, J H; Kim, D H; Lee, Y O; Zhuang, Y X

    2001-01-01

    This report summarized information and figures describing the 'KAERI Charged Particle Cross Section Library for Radioisotope production' The library contains proton-, deutron-, He-3-, and alpha-induced monitor cross sections, and gamma- and positron-emitter production cross sections. Experimental data and evaluation methods are described, and the evaluated cross sections are compared with those of the IAEA, MENDL, and LA150. The library has cross sections and emission spectra suitable for the transport analysis in the design of radioisotope production system, and are available at http://atom.kaeri.re.kr/ in ENDF-6 format.

  4. Survey of the Quality of Experimental Design, Statistical Analysis and Reporting of Research Using Animals

    OpenAIRE

    Carol Kilkenny; Nick Parsons; Ed Kadyszewski; Festing, Michael F W; Innes C Cuthill; Derek Fry; Jane Hutton; Douglas G. Altman

    2009-01-01

    For scientific, ethical and economic reasons, experiments involving animals should be appropriately designed, correctly analysed and transparently reported. This increases the scientific validity of the results, and maximises the knowledge gained from each experiment. A minimum amount of relevant information must be included in scientific publications to ensure that the methods and results of a study can be reviewed, analysed and repeated. Omitting essential information can raise scientific a...

  5. Survey of the quality of experimental design, statistical analysis and reporting of research using animals

    OpenAIRE

    Kilkenny, Carol; Parsons, Nicholas R.; Kadyszewski, Ed; Festing, Michael F W; Innes C Cuthill; Fry, Derek; Hutton, Jane (Statistician); Douglas G. Altman

    2009-01-01

    For scientific, ethical and economic reasons, experiments involving animals should be appropriately designed, correctly analysed and transparently reported. This increases the scientific validity of the results, and maximises the knowledge gained from each experiment. A minimum amount of relevant information must be included in scientific publications to ensure that the methods and results of a study can be reviewed, analysed and repeated. Omitting essential information can raise scientific a...

  6. Experimental Program Final Technical Progress Report: 15 February 2007 to 30 September 2012

    Energy Technology Data Exchange (ETDEWEB)

    Kinney, Edward R. [University of Colorado, Boulder, CO

    2014-09-12

    This is the final technical report of the grant DE-FG02-04ER41301 to the University of Colorado at Boulder entitled "Intermediate Energy Nuclear Physics" and describes the results of our funded activities during the period 15 February 2007 to 30 September 2012. These activities were primarily carried out at Fermilab, RHIC, and the German lab DESY. Significant advances in these experiments were carried out by members of the Colorado group and are described in detail.

  7. Go Team Experimentation Results: Research, Train and Sustain. Human Dimensions of NCW Sub-Task Report

    Science.gov (United States)

    2008-10-01

    dynamics, Cooperative /competitive behaviour Messages between players, de- brief Text content of messages and de- brief Team roles , leadership...simulating a valid team experience, allows team roles to emerge rather than be mandated. This supports the use of Go*Team as a tool for research...report. After the games some players made comments such as “we needed to discuss the team strategy prior to playing and assign team roles ” and “it

  8. Cross-cultural validity of the thyroid-specific quality-of-life patient-reported outcome measure, ThyPRO

    DEFF Research Database (Denmark)

    Watt, Torquil; Barbesino, Giuseppe; Bjørner, Jakob

    2015-01-01

    BACKGROUND AND PURPOSE: Thyroid diseases are common and often affect quality of life (QoL). No cross-culturally validated patient-reported outcome measuring thyroid-related QoL is available. The purpose of the present study was to test the cross-cultural validity of the newly developed thyroid...... = 148), Denmark (n = 902) and Sweden (n = 187). Translated versions were compared pairwise to the English version by examining uniform and nonuniform DIF, i.e., whether patients from different countries respond differently to a particular item, although they have identical level of the concept measured...... scale scores, most of which could be explained by sample differences not controlled for. CONCLUSION: The ThyPRO has good cross-cultural validity with only minor cross-cultural invariance and is recommended for use in international multicenter studies....

  9. Associations between dietary patterns and self-reported hypertension among Brazilian adults: a cross-sectional population-based study.

    Science.gov (United States)

    Selem, Soraya Sant'Ana de Castro; Castro, Michelle Alessandra de; César, Chester Luiz Galvão; Marchioni, Dirce Maria Lobo; Fisberg, Regina Mara

    2014-08-01

    Hypertension is a prevalent cardiovascular disease, the important modifiable risk factor of which is diet. The aim of this study was to derive dietary patterns and to test associations with self-reported hypertension and other characteristics, namely demographic, socioeconomic, and lifestyle factors. Data were obtained from the population-based cross-sectional study titled Health Survey of the City of São Paulo, with a random sample of residents of the city of São Paulo, Brazil, aged older than 20 years of both sexes (n=1,102). In 2008, a structured questionnaire with information about socioeconomic, anthropometric, lifestyle, and dietary factors was applied. Dietary intake was estimated by two 24-hour dietary recalls, adjusted by Multiple Source Method. Dietary patterns were obtained through exploratory principal component factor analysis. Poisson regression was used to assess relationships. Three dietary patterns were identified: prudent (fruits, vegetables, whole-grain bread, white cheeses, juices, reduced-fat milk/nonfat milk), traditional (rice, beans, bread/toast/crackers, butter/margarine, whole milk, coffee/teas, sugar), and modern (sodas, pastries/sandwiches/pizzas, yellow cheeses, pastas, sauces, alcoholic beverages, sweets, processed meats). Hypertension and demographic, socioeconomic, and lifestyle factors, as well as the presence of health insurance, were associated with adherence to one or more identified dietary patterns. These results suggest the existence of a target audience for planning and executing public policies of food and nutrition to prevent and control hypertension.

  10. Highly cross-linked polyethylene acetabular liners retrieved four to five years after revision surgery: a report of two cases.

    Science.gov (United States)

    Teeter, Matthew G; Naudie, Douglas D R; Charron, Kory D; Holdsworth, David W

    2010-08-01

    There is currently considerable interest in the use of highly cross-linked polyethylene (XLPE) acetabular liners for total hip arthroplasty (THA). In literature, only a single retrieval analysis of one type of XLPE liner implanted for greater than four years exists. The purpose of the present report is to quantify surface deviations in two XLPE liners implanted during revision THA and retrieved between four to five years after implantation. The two XLPE acetabular liners (Reflection, Smith and Nephew Inc., Memphis, TN) were retrieved from patients undergoing their second revision surgery, at 4.90 and 4.07 years. The retrieved liners and a new, non-implanted, unworn liner of the same size were scanned using micro-computed tomography (micro-CT). Articular surface deviation maps were created by comparing the retrievals to the unworn liner, based on the liner geometry obtained from micro-CT. The linear penetration rates were found to be 0.018 and 0.008 mm/year. Localized scratches and pits with deviations greater than 0.205 mm were also found on the articular surfaces of both liners. The XLPE liners retrieved from the two cases demonstrated low linear penetration rates. Regions with greater focal deviations were also apparent, likely due to third-body wear. The results are consistent with previously published clinical follow-ups of other XLPE liners.

  11. Clinical and Laboratory Responses of Cross-Country Skiing for a 24-H World Record: Case Report

    Directory of Open Access Journals (Sweden)

    Markus Niemelä, Jukka Juvonen, Päivikki Kangastupa, Onni Niemelä, Tatu Juvonen

    2015-12-01

    Full Text Available The physiological consequences of ultra-endurance cross-country skiing in cold conditions are poorly known. We report here clinical, echocardiographic and laboratory findings from a 41-y old male elite skier in a world record trial for 24-h skiing. The athlete completed a total of 406.8 km outdoors with the temperature ranging between -24°C and –5°C during the 24-h period. Post exercise, notable increases from baseline values were observed in myoglobin (50-fold, creatinine kinase (30-fold and proBNP (6-fold, whereas troponin T or troponin I levels remained unchanged. At baseline, echocardiographic findings showed cardiac hypertrophy and after skiing, a 5% reduction of left-ventricular end-diastolic dimension. Increases in markers of kidney (creatinine and liver function (alanine aminotransferase, serum uric acid, C-reactive protein and white blood cell counts were also noted. In addition, electrolyte disturbances including hyponatremia, hypophosphatemia and hypocalcaemia were noted during the follow-up. The data indicates that a prolonged period of high-intensity skiing leads to muscle, heart and kidney affection and activation of inflammation even in an experienced elite skier. The observed health effects underscore the need for strict medical surveillance of participants in extreme sports with long duration.

  12. Demonstration of river crossing technology for installation of environmental horizontal wells: AMH-6 and AMH-7 installation report

    Energy Technology Data Exchange (ETDEWEB)

    Moore, D. B.

    1993-07-01

    The Department of Energy`s (DOE) Office of Technology Development initiated an integrated demonstration of innovative technologies and systems for cleanup of volatile organic compounds (VOCs) in soils and groundwater. This drilling project is part of the directional drilling task for the integrated technology demonstration at the Savannah River Site (SRS). One of the objectives of the drilling task is the demonstration of multiple drilling technologies. The technologies can then be compared and evaluated in terms of technical performance and cost effectiveness. Petroleum horizontal well technology and utility industry horizontal well technology have been previously demonstrated at the SRS. The petroleum industry directional drilling technology was demonstrated by Eastman Christensen Environmental Corporation (ECEC). ECEC directionally drilled and installed four horizontal wells in the M Area. Charles Machine Works, working with Sandia National Laboratory, demonstrated a utility industry directional drilling technology by installing one horizontal well in the M Area. The demonstration that is the subject of this report involved river crossing horizontal well technology for the installation of two M-Area Settling Basin soil gas extraction wells.

  13. Self-reported dependence on mobile phones in young adults: A European cross-cultural empirical survey

    Science.gov (United States)

    Lopez-Fernandez, Olatz; Kuss, Daria J.; Romo, Lucia; Morvan, Yannick; Kern, Laurence; Graziani, Pierluigi; Rousseau, Amélie; Rumpf, Hans-Jürgen; Bischof, Anja; Gässler, Ann-Kathrin; Schimmenti, Adriano; Passanisi, Alessia; Männikkö, Niko; Kääriänen, Maria; Demetrovics, Zsolt; Király, Orsolya; Chóliz, Mariano; Zacarés, Juan José; Serra, Emilia; Griffiths, Mark D.; Pontes, Halley M.; Lelonek-Kuleta, Bernadeta; Chwaszcz, Joanna; Zullino, Daniele; Rochat, Lucien; Achab, Sophia; Billieux, Joël

    2017-01-01

    Background and aims Despite many positive benefits, mobile phone use can be associated with harmful and detrimental behaviors. The aim of this study was twofold: to examine (a) cross-cultural patterns of perceived dependence on mobile phones in ten European countries, first, grouped in four different regions (North: Finland and UK; South: Spain and Italy; East: Hungary and Poland; West: France, Belgium, Germany, and Switzerland), and second by country, and (b) how socio-demographics, geographic differences, mobile phone usage patterns, and associated activities predicted this perceived dependence. Methods A sample of 2,775 young adults (aged 18–29 years) were recruited in different European Universities who participated in an online survey. Measures included socio-demographic variables, patterns of mobile phone use, and the dependence subscale of a short version of the Problematic Mobile Phone Use Questionnaire (PMPUQ; Billieux, Van der Linden, & Rochat, 2008). Results The young adults from the Northern and Southern regions reported the heaviest use of mobile phones, whereas perceived dependence was less prevalent in the Eastern region. However, the proportion of highly dependent mobile phone users was more elevated in Belgium, UK, and France. Regression analysis identified several risk factors for increased scores on the PMPUQ dependence subscale, namely using mobile phones daily, being female, engaging in social networking, playing video games, shopping and viewing TV shows through the Internet, chatting and messaging, and using mobile phones for downloading-related activities. Discussion and conclusions Self-reported dependence on mobile phone use is influenced by frequency and specific application usage. PMID:28425777

  14. Self-reported dependence on mobile phones in young adults: A European cross-cultural empirical survey.

    Science.gov (United States)

    Lopez-Fernandez, Olatz; Kuss, Daria J; Romo, Lucia; Morvan, Yannick; Kern, Laurence; Graziani, Pierluigi; Rousseau, Amélie; Rumpf, Hans-Jürgen; Bischof, Anja; Gässler, Ann-Kathrin; Schimmenti, Adriano; Passanisi, Alessia; Männikkö, Niko; Kääriänen, Maria; Demetrovics, Zsolt; Király, Orsolya; Chóliz, Mariano; Zacarés, Juan José; Serra, Emilia; Griffiths, Mark D; Pontes, Halley M; Lelonek-Kuleta, Bernadeta; Chwaszcz, Joanna; Zullino, Daniele; Rochat, Lucien; Achab, Sophia; Billieux, Joël

    2017-06-01

    Background and aims Despite many positive benefits, mobile phone use can be associated with harmful and detrimental behaviors. The aim of this study was twofold: to examine (a) cross-cultural patterns of perceived dependence on mobile phones in ten European countries, first, grouped in four different regions (North: Finland and UK; South: Spain and Italy; East: Hungary and Poland; West: France, Belgium, Germany, and Switzerland), and second by country, and (b) how socio-demographics, geographic differences, mobile phone usage patterns, and associated activities predicted this perceived dependence. Methods A sample of 2,775 young adults (aged 18-29 years) were recruited in different European Universities who participated in an online survey. Measures included socio-demographic variables, patterns of mobile phone use, and the dependence subscale of a short version of the Problematic Mobile Phone Use Questionnaire (PMPUQ; Billieux, Van der Linden, & Rochat, 2008). Results The young adults from the Northern and Southern regions reported the heaviest use of mobile phones, whereas perceived dependence was less prevalent in the Eastern region. However, the proportion of highly dependent mobile phone users was more elevated in Belgium, UK, and France. Regression analysis identified several risk factors for increased scores on the PMPUQ dependence subscale, namely using mobile phones daily, being female, engaging in social networking, playing video games, shopping and viewing TV shows through the Internet, chatting and messaging, and using mobile phones for downloading-related activities. Discussion and conclusions Self-reported dependence on mobile phone use is influenced by frequency and specific application usage.

  15. Clinical and Laboratory Responses of Cross-Country Skiing for a 24-H World Record: Case Report.

    Science.gov (United States)

    Niemelä, Markus; Juvonen, Jukka; Kangastupa, Päivikki; Niemelä, Onni; Juvonen, Tatu

    2015-12-01

    The physiological consequences of ultra-endurance cross-country skiing in cold conditions are poorly known. We report here clinical, echocardiographic and laboratory findings from a 41-y old male elite skier in a world record trial for 24-h skiing. The athlete completed a total of 406.8 km outdoors with the temperature ranging between -24°C and -5°C during the 24-h period. Post exercise, notable increases from baseline values were observed in myoglobin (50-fold), creatinine kinase (30-fold) and proBNP (6-fold), whereas troponin T or troponin I levels remained unchanged. At baseline, echocardiographic findings showed cardiac hypertrophy and after skiing, a 5% reduction of left-ventricular end-diastolic dimension. Increases in markers of kidney (creatinine) and liver function (alanine aminotransferase), serum uric acid, C-reactive protein and white blood cell counts were also noted. In addition, electrolyte disturbances including hyponatremia, hypophosphatemia and hypocalcaemia were noted during the follow-up. The data indicates that a prolonged period of high-intensity skiing leads to muscle, heart and kidney affection and activation of inflammation even in an experienced elite skier. The observed health effects underscore the need for strict medical surveillance of participants in extreme sports with long duration. Key pointsAn elite athlete was able to ski over 400 km during 24 hours with an outdoor temperature ranging between -5 °C and -24 °C.Several postrace abnormalities occurred in biomarkers of muscle, heart, kidney, liver and inflammation status.Serum troponins, specific markers of myocardial cell damage, remained stable.The report supports careful medical surveillance of participants in extreme sports with long duration.

  16. Cross-sectional studies published in Indian journal of community medicine: evaluation of adherence to strengthening the reporting of observational studies in epidemiology statement.

    Science.gov (United States)

    Jeelani, A; Malik, Wr; Haq, I; Aleem, S; Mujtaba, M; Syed, N

    2014-11-01

    The Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) statement is a set of recommendations about what should be included in a more accurate and complete description of observational studies. The aim was to assess the quality of reporting of cross-sectional studies by evaluating the extent to which they adhere to the STROBE statement. This study has a cross-sectional design. All the articles published as original articles in Indian Journal of Community Medicine from January 2010 to September 2011 were downloaded from the journal website. A total of 96 articles were downloaded out of which 80 were found to have a cross-sectional design. Variables were: (1) Percentage of STROBE items included in a report and (2) percentage of articles reporting each item in the STROBE checklist. Data analysis was done by descriptive statistics using frequencies and percentages. A total of 80 articles were evaluated. About 46% (37/80) articles reported 12-15 items of the STROBE checklist. Bias, nonparticipants and reasons for nonparticipation, other analyses done, generalizability, and source of funding were reported by < 25% of studies. The most frequently reported items of the checklist were summary of what was done and what was found in the abstract, background/rationale, objectives, setting, outcome data, key results in discussion, interpretation of results. None of the articles reported all items of the STROBE checklist. This study reveals that the quality of reporting cross-sectional studies in Indian Journal of Community Medicine is not satisfactory and there is room for improvement.

  17. BESTIA (Brookhaven Experimental Supra-Terawatt Infrared at ATF) laser: A status report

    Science.gov (United States)

    Polyanskiy, Mikhail N.; Babzien, Marcus; Pogorelsky, Igor V.

    2017-03-01

    Development of a next-generation CO2 laser aiming at 100 TW peak power at a wavelength of 10 µm ts underway at the Brookhaven Accelerator Test Facility (ATF). A new laser facility is being deployed as part of the ATF-II upgrade. New high-pressure power amplifiers are being fabricated and assembled, while R&D continues with ATF's present 2 TW CO2 laser system. Our plan for increasing the peak laser power envisions several discrete steps in the upgrade. First will be demonstration of a 10 TW capability utilizing chirped pulse amplification, with an extended power amplifier chain filled with high-pressure isotopic gas. Further development aimed at a demonstration of 25 TW operation will require the addition of a nonlinear compressor system to shrink the pulse width below the nominal gain-bandwidth limit. These upgrades will then enable a longer-term R&D effort to achieve the 100 TW goal. Over the last two years, significant R&D effort has been focused on the development of chirped-pulse amplification, the study of the behavior of optical materials under the action of high-peak-power mid-IR pulses, and the optimization of the beam quality, which is required for nonlinear pulse compression. The results of this R&D have been implemented into the ongoing operation of the ATF's CO2 laser and have already benefited our users in their experimental programs.

  18. Integrated regenerative fuel cell experimental evaluation. Final report, 11 January 1988-30 June 1989

    Energy Technology Data Exchange (ETDEWEB)

    Martin, R.E.

    1990-01-01

    An experimental test program was conducted to investigate the performance characteristics of an integrated regenerative fuel cell (IRFC) concept. The IRFC consists of a separate fuel cell unit and electrolysis cell unit in the same structure, with internal storage of fuel cell product water and external storage of electrolysis cell produced hydrogen and oxygen. The fuel cell unit incorporates an enhanced Orbiter-type cell capable of improved performance at reduced weight. The electrolysis cell features a NiCo2O4 catalyst oxygen evolution eletrode with a porous Teflon cover to retard electrolyte loss. Six complete IRFC assemblies were assembled and performance tested at an operating temperature of 200 F (93.3 C) and reactant pressures up to 170 psia (117.2 n/cu cm) on IRFC No. 4. Anomalous pressure charge/discharge characteristics were encountered during performance evaluation. A reversible fuel cell incorporating a proprietary bi-functional oxygen electrode operated satisfactory at 200 F (93.3 C) at reactant pressures up to 50 psia (41.4 n/cu cm) as a regenerative fuel cell for one cycle, before developing an electrical short in the fuel cell mode. Electrolysis cell 300-hour endurance tests demonstrated the electrolyte retention capability of the electrode Teflon cover and the performance stability of the bi-functional oxygen electrode at high potential.

  19. Meeting Report on Experimental Approaches to Evolution and Ecology Using Yeast and Other Model Systems.

    Science.gov (United States)

    Jarosz, Daniel; Dudley, Aimée M

    2017-08-16

    The fourth EMBO-sponsored conference on Experimental Approaches to Evolution and Ecology Using Yeast and Other Model Systems (https://www.embl.de/training/events/2016/EAE16-01/), was held at the EMBL in Heidelberg, Germany, October 19-23, 2016. The conference was organized by Judith Berman (Tel Aviv University), Maitreya Dunham (University of Washington), Jun-Yi Leu (Academia Sinica), and Lars Steinmetz (EMBL Heidelberg and Stanford University). The meeting attracted ~120 researchers from 28 countries and covered a wide range of topics in the fields of genetics, evolutionary biology, and ecology with a unifying focus on yeast as a model system. Attendees enjoyed the Keith Haring inspired yeast florescence microscopy artwork (Figure 1), a unique feature of the meeting since its inception, and the one-minute flash talks that catalyzed discussions at two vibrant poster sessions. The meeting coincided with the 20th anniversary of the publication describing the sequence of the first eukaryotic genome, Saccharomyces cerevisiae (Goffeau et al. 1996). Many of the conference talks focused on important questions about what is contained in the genome, how genomes evolve, and the architecture and behavior of communities of phenotypically and genotypically diverse microorganisms. Here, we summarize highlights of the research talks around these themes. Nearly all presentations focused on novel findings, and we refer the reader to relevant manuscripts that have subsequently been published. Copyright © 2017, G3: Genes, Genomes, Genetics.

  20. Experimental and theoretical high energy physics. Progress report 1 Oct 1979 to 30 Sep 1980

    Energy Technology Data Exchange (ETDEWEB)

    Gasiorowicz, S.; Fishbane, P.; Kaus, P.; Riverside, U. C.; Geffen, D. A.; Wilson, W.; Suura, Hiroshi; Haqq, Emmanuel; Rosner, Jonathan L.; Kwong, Waikwok; Schonfeld, Jonathan F.; Quigg, C.; Thacker, H. B.; Moxhay, Peter; Robinett, Richard; Karl, Gabriel; Meshkov, Sydney

    1980-09-30

    Research performed in theoretical high energy physics includes: nonabelian Stokes theorem; connection between asymptotic behavior and bound states in QCD; classical solutions for gauge fields interacting with Higgs mesons; neutrino oscillations; relativistic wave equation and mass spectrum of gluonium; dynamical structures of the pion; convergence of reflectionless approximations to confining potentials; degeneracy in one-dimensional quantum mechanics; review of heavy quarks and new particles; semiclassical results on normalization of bound state wave functions; proton lifetime; quark magnetic moments and E1 radiative transitions in charmonium; lectures on quark models; inverse scattering and the upsilon family; and magnetic moments of quarks in baryons and mesons. In experimental high energy physics, the emphasis has been on strong interactions but also includes several crucial tests of the currently most important theories of elementary particle interactions. Experiments described include: electromagnetic couplings of vector mesons; direct photon production at large transverse momentum; hyperon experiments; spin effects in strong interactions; a dense detector for proton decay; and exclusive processes at large transverse momenta. (GHT)

  1. Experimental particle physics at the University of Pittsburgh. Progress report, November 1, 1995--October 31, 1996

    Energy Technology Data Exchange (ETDEWEB)

    Boudreau, J.F.; Engels, E. Jr.; Shepard, P.F.; Thompson, J.A.

    1996-05-01

    This report covers the progress on two different tasks, Task A and Task B. Task A focuses on rare and semi-rare decays of {phi} and of the short-lived kaon with emphasis on those aspects needed in preparation for the proposed {Phi}-Factory measurements of CPT violation and {epsilon}{prime}/{epsilon} from the CP-violating decays of the K{sub L}K{sub S} final state. The second aspect of the kaon decay work is participation in the so-called rare kaon decay experiments, E865, at BNL. The major goals of Task B, Fermilab program, are as follows: (1) participation in the analysis of the E706 data taken during the 1990--1991 fixed target run at Fermilab and (2) the continuation of the work with the CDF collaboration particularly the SVX II upgrade. The E706 part of the program involves the completion of publications reporting the results of the 1990--91 data run. The analysis of these data is now mature and physics results are emerging. The CDF program involves a dedicated effort to the design of a silicon vertex detector upgrade, SVX II, to be accomplished by the time Fermilab run II collider run (1999). In addition they are participating in the 1993--1995 collide run Ib and actively analyzing the data from both runs Ia and Ib.

  2. Experimental Cross Sections for Reactions of Heavy Ions and 208Pb, 209Bi, 238U, and 248Cm Targets

    Energy Technology Data Exchange (ETDEWEB)

    Patin, Joshua Barnes [Univ. of California, Berkeley, CA (United States)

    2002-01-01

    The study of the reactions between heavy ions and 208Pb, 209Bi, 238U, and 248Cm Cm targets was performed to look at the differences between the cross sections of hot and cold fusion reactions. Experimental cross sections were compared with predictions from statistical computer codes to evaluate the effectiveness of the computer code in predicting production cross sections. Hot fusion reactions were studied with the MG system, catcher foil techniques and the Berkeley Gas-filled Separator (BGS). 3n- and 4n-exit channel production cross sections were obtained for the 238U(18O,xn)256-xFm, 238U(22Ne,xn)260-xNo, and 248Cm(15N,xn)263-xLr reactions and are similar to previous experimental results. The experimental cross sections were accurately modeled by the predictions of the HIVAP code using the Reisdorf and Schaedel parameters and are consistent with the existing systematics of 4n exit channel reaction products. Cold fusion reactions were examined using the BGS. The 48Pb(238Ca,xn)256-xNo, 208Pb(50Ti,xn)258-xRf, 208Pb(51V,xn)259-xDb, 50Bi(238Ti,xn)259-xDb, and 209Bi(51V,xn)260-xSg reactions were studied. The experimental production cross sections are in agreement with the results observed in previous experiments. It was necessary to slightly alter the Reisdorf and Schaedel parameters for use in the HIVAP code in order to more accurately model the experimental data. The cold fusion experimental results are in agreement with current 1n- and 2n-exit channel systematics.

  3. Geomechanics of penetration : experimental and computational approaches : final report for LDRD project 38718.

    Energy Technology Data Exchange (ETDEWEB)

    Hardy, Robert Douglas; Holcomb, David Joseph; Gettemy, Glen L.; Fossum, Arlo Frederick; Rivas, Raul R.; Bronowski, David R.; Preece, Dale S.

    2004-10-01

    The purpose of the present work is to increase our understanding of which properties of geomaterials most influence the penetration process with a goal of improving our predictive ability. Two primary approaches were followed: development of a realistic, constitutive model for geomaterials and designing an experimental approach to study penetration from the target's point of view. A realistic constitutive model, with parameters based on measurable properties, can be used for sensitivity analysis to determine the properties that are most important in influencing the penetration process. An immense literature exists that is devoted to the problem of predicting penetration into geomaterials or similar man-made materials such as concrete. Various formulations have been developed that use an analytic or more commonly, numerical, solution for the spherical or cylindrical cavity expansion as a sort of Green's function to establish the forces acting on a penetrator. This approach has had considerable success in modeling the behavior of penetrators, both as to path and depth of penetration. However the approach is not well adapted to the problem of understanding what is happening to the material being penetrated. Without a picture of the stress and strain state imposed on the highly deformed target material, it is not easy to determine what properties of the target are important in influencing the penetration process. We developed an experimental arrangement that allows greater control of the deformation than is possible in actual penetrator tests, yet approximates the deformation processes imposed by a penetrator. Using explosive line charges placed in a central borehole, we loaded cylindrical specimens in a manner equivalent to an increment of penetration, allowing the measurement of the associated strains and accelerations and the retrieval of specimens from the more-or-less intact cylinder. Results show clearly that the deformation zone is highly concentrated

  4. Final Report: Experimental and Theoretical Studies of Surface Oxametallacycles - Connections to Heterogeneous Olefin Epoxidation

    Energy Technology Data Exchange (ETDEWEB)

    Mark A. Barteau

    2009-09-15

    This project has aimed at the rational design of catalysts for direct epoxidation of olefins. This chemistry remains one of the most challenging problems in heterogeneous catalysis. Although the epoxidation of ethylene by silver catalysts to form ethylene oxide (EO) has been practiced for decades, little progress has been made in expanding this technology to other products and processes. We have made significant advances through the combination of surface science experiments, Density Functional Theory (DFT) calculations, and catalytic reactor experiments, toward understanding the mechanism of this reaction on silver catalysts, and to the rational improvement of selectivity. The key has been our demonstration of surface oxametallacycle intermediates as the species that control reaction selectivity. This discovery permits the influence of catalyst promoters on selectivity to be probed, and new catalyst formulations to be developed. It also guides the development of new chemistry with potential for direct epoxidation of more complex olefins. During the award period we have focused on 1. the formation and reaction selectivity of complex olefin epoxides on silver surfaces, and 2. the influence of co-adsorbed oxygen atoms on the reactions of surface oxametallacycles on silver, and 3. the computational prediction, synthesis, characterization and experimental evaluation of bimetallic catalysts for ethylene epoxidation. The significance of these research thrusts is as follows. Selective epoxidation of olefins more complex than ethylene requires suppression of not only side reactions available to the olefin such as C-H bond breaking, but it requires formation and selective ring closure of the corresponding oxametallacycle intermediates. The work carried out under this grant has significantly advanced the field of catalyst design from first principles. The combination of computational tools, surface science, and catalytic reactor experiments in a single laboratory has few

  5. Final Scientific Report: Experimental Investigation of Reconnection in a Line-tied Plasma

    Energy Technology Data Exchange (ETDEWEB)

    Forest, Cary [Univ. of Wisconsin, Madison, WI (United States)

    2016-10-25

    This grant used funding from the NSF/DoE Partnership on Plasma Science to investigate magnetic reconnection phenomena in a line-tied pinch experiment. The experiment was upgraded from a previous device intended to study fusion plasma-related instabilities to a new configuration capable of studying a number of new, previously unstudied configurations. A high spatial and time resolution array of magnetic probes was constructed to measure time evolving structures present as instability and turbulence developed. The most important new equilibrium made possible by this grant was a Zero-Net-Current equilibrium that models the footpoint twisting of solar flux tubes that occurs prior to solar eruptions (flares and coronal mass ejections). This new equilibrium was successfully created in the lab, and it exhibited a host of instabilities. In particular, at low current when the equilibrium was not overly stressed, a saturated internal kink mode oscillation was observed. At high current, 2 D magnetic turbulence developed which we attribute to the lack of a equilibrium brought about by a subcritical transition to turbulence. A second set of experiments involved the turbulent interactions of a collection of flux tubes all being twisted independently, a problem known as the Parker Problem. Current profiles consisting of 2, 3 and 4 guns were used to impose a fine scale drive, and resulted in a new experimental platform in which the injection scale of the magnetic turbulence could be controlled. First experiments in this configuration support the conclusion that an inverse cascade of magnetic energy occurred which self-organized the plasma into a nearly axisymmetric current distribution.

  6. Experimental evaluation of dry/wet air-cooled heat exchangers. Progress report

    Energy Technology Data Exchange (ETDEWEB)

    Hauser, S.G.; Gruel, R.L.; Huenefeld, J.C.; Eschbach, E.J.; Johnson, B.M.; Kreid, D.K.

    1982-08-01

    The ultimate goal of this project was to contribute to the development of improved cooling facilities for power plants. Specifically, the objective during FY-81 was to experimentally determine the thermal performance and operating characteristics of an air-cooled heat exchanger surface manufactured by the Unifin Company. The performance of the spiral-wound finned tube surface (Unifin) was compared with two inherently different platefin surfaces (one developed by the Trane Co. and the other developed by the HOETERV Institute) which were previously tested as a part of the same continuing program. Under dry operation the heat transfer per unit frontal area per unit inlet temperature difference (ITD) of the Unifin surface was 10% to 20% below that of the other two surfaces at low fan power levels. At high fan power levels, the performances of the Unifin and Trane surfaces were essentially the same, and 25% higher than the HOETERV surface. The design of the Unifin surface caused a significantly larger air-side pressure drop through the heat exchanger both in dry and deluge operation. Generally higher overall heat transfer coefficients were calculated for the Unifin surface under deluged operation. They ranged from 2.0 to 3.5 Btu/hr-ft/sup 2/-/sup 0/F as compared to less than 2.0 Btu hr-ft/sup 2/-/sup 0/F for the Trane and HOETERV surfaces under similar conditions. The heat transfer enhancement due to the evaporative cooling effect was also measureably higher with the Unifin surface as compared to the Trane surface. This can be primarily attributed to the better wetting characteristics of the Unifin surface. If the thermal performance of the surfaces are compared at equal face velocities, the Unifin surface is as much as 35% better. This method of comparison accounts for the wetting characteristics while neglecting the effect of pressure drop. Alternatively the surfaces when compared at equal pressure drop essentially the same thermal performance.

  7. Drug utilization patterns and reported health status in ethnic German migrants (Aussiedler in Germany: a cross-sectional study

    Directory of Open Access Journals (Sweden)

    Kostev Karel

    2011-06-01

    Full Text Available Abstract Background Inadequate utilization of healthcare services by migrant populations is an important public health concern. Inadequate drug consumption and poor compliance to the therapeutic regimen are common manifestations of low health-care seeking behavior present in migrants even in the countries with well-established healthcare systems. There are few studies on the use of medicines among the different groups of migrants in Germany. The objective of this study is to investigate drug consumption patterns of ethnic German migrants (Aussiedler and their current health status. Methods A cross-sectional study nested into a cohort of 18,621 individuals aged 20-70 years who migrated to Germany from the former Soviet Union between 1990 and 2005 was conducted. Data on consumption of drugs, drug handling, major health risk factors, and one-year disease prevalence were obtained for 114 individuals through a self-administered questionnaire and phone interviews. Results were compared to the data on the German population derived from the Disease Analyzer database and Robert Koch Institute (RKI annual reports. Direct age standardization, test of differences, Chi-square test, and descriptive statistics were applied as appropriate. For drug classification the Anatomical Therapeutic Chemical (ATC system was used. Results Of the respondents, 97% reported to have at least one disease within a 12-month period. The one-year prevalence of asthma (6.9%, hypertension (26.7%, chronic bronchitis (8.6%, and diabetes (4.9% in migrants was similar to the general German population. 51% regularly took either over-the-counter (OTC medication or prescription medicines. Six ATC groups were analyzed. The highest drug consumption was reported for the ATC cardiovascular (22%, nervous (9%, and muskulo-skeletal system (8%. 30% used OTC medicines obtained in the country of origin. Difficulties with drug handling were rare. Alcohol consumption did not differ from the German

  8. Cross-flow, filter-sorbet catalyst for particulate, SO{sub 2} and NO{sub x} control. Fourth quarterly technical progress report

    Energy Technology Data Exchange (ETDEWEB)

    1990-11-01

    This report describes a new concept for integrated pollutant control: A cross-flow filter comprised of layered, gas permeable membranes that act as a particulate filter, an SO{sub 2} sorbent, and a NO{sub x} reduction catalyst.

  9. Experimental and Numerical Investigations of Soil Desiccation for Vadose Zone Remediation: Report for Fiscal Year 2007

    Energy Technology Data Exchange (ETDEWEB)

    Ward, Andy L.; Oostrom, Mart; Bacon, Diana H.

    2008-02-04

    Apart from source excavation, the options available for the remediation of vadose zone metal and radionuclide contaminants beyond the practical excavation depth (0 to 15 m) are quite limited. Of the available technologies, very few are applicable to the deep vadose zone with the top-ranked candidate being soil desiccation. An expert panel review of the work on infiltration control and supplemental technologies identified a number of knowledge gaps that would need to be overcome before soil desiccation could be deployed. The report documents some of the research conducted in the last year to fill these knowledge gaps. This work included 1) performing intermediate-scale laboratory flow cell experiments to demonstrate the desiccation process, 2) implementing a scalable version of Subsurface Transport Over Multiple Phases–Water-Air-Energy (STOMP-WAE), and 3) performing numerical experiments to identify the factors controlling the performance of a desiccation system.

  10. EBIT - Electronic Beam Ion Trap: N Divison experimental physics annual report 1995

    Energy Technology Data Exchange (ETDEWEB)

    Schneider, D. [ed.

    1996-10-01

    The multi-faceted research effort of the EBIT (Electron Beam Ion Trap) program in N-Division of the Physics and Space Technology Department at Lawrence Livermore National Laboratory (LLNL) continues to contribute significant results to the physical sciences from studies with low energy very highly charged heavy ions. The EBIT program attracts a number of collaborators from the US and abroad for the different projects. The collaborations are partly carried out through participating graduate students demonstrating the excellent educational capabilities at the LLNL EBIT facilities. Moreover, participants from Historically Black Colleges and Universities are engaged in the EBIT project. This report describes EBIT work for 1995 in atomic structure measurements and radiative transition probabilities, spectral diagnostics for laboratory and astrophysical plasmas, ion/surface interaction studies, electron-ion interactions studies, retrap and ion collisions, and instrumental development.

  11. [Hydroxyapatite/collagen. Experimental study of its application in facial surgery and report of a case].

    Science.gov (United States)

    Remacle, M; Marbaix, E; Mustin, V

    1990-01-01

    A new implant made of purified fibrillar collagen (P.F.C.) and hydroxylapatite particles (HA) (Maxill-HAPR) is tested in canine mandibulae and surrounding tissues so that its integration and its bone-induction capacity can be histologically studied. A clinical case is also reported. The goal of this combined implant is to improve the interface of the HA particles with the host-tissues through the P.F.C. This study shows that P.F.C. is replaced after two months by host fibro-conjunctive tissues. Between 3 and 4 months, ossification areas are observed. After 6 months, the host conjunctive tissue is replaced by bone surrounding the HA particles. P.F.C.-HA implants can be made for replacement or restoration of facial bones not submitted to important forces like the frontal or malar bones.

  12. Report control Chrysomelids in the experimental field of camu-camu from Embrapa Roraima-Brazil

    Directory of Open Access Journals (Sweden)

    Carlos Abanto Rodriguez

    2013-12-01

    Full Text Available Camu-camu is a native fruit tree of the Amazon, is highly value nutritious and great economic potential due to the high content of ascorbic acid (6112 mg/100 g present in fruits. Camu-camu, like any other plant, when it becomes cultivated outside their natural environment, loses its ecological balance and, consequently, is attacked by phytophagous and severe insect pests, which cause serious damage to the orchard. In this sense, the aim with this study, reporting the identification and control of insect pests in the cultivation of camu-camu, using different methods to attract and capture. It was observed that the best results were obtained in applying Neenmax®, followed by traps shading of black color screen, furthermore, higher occurrence of insects were recorded belonging to the family Chrysomelidae.

  13. Emotions and eating. Self-reported and experimentally induced changes in food intake under stress.

    Science.gov (United States)

    Wallis, D J; Hetherington, M M

    2009-04-01

    Two studies investigated the stress-eating relationship. The first examined self-reported changes in intake of snack foods, whilst the second investigated stress-induced overconsumption in a laboratory setting comparing high (HF) and low-fat (LF) snacks. Eighty-nine females completed the Dutch Eating Behaviour Questionnaire (DEBQ) [Van Strien, T., Fritjers, J. E. R., Bergers, G. P. A., & Defares, P. B. (1986). Dutch Eating Behaviour Questionnaire for assessment of restrained, emotional and external eating behaviour. International Journal of Eating Disorders, 5, 295-315] and a self-report measure designed to evaluate changes in eating in response to stress. Increased intake of HF snacks was associated with high emotional eating but not with restraint. A laboratory-based experiment compared intake of HF and LF snacks after ego-threatening and neutral Stroop colour-naming tasks. Intake was suppressed by 31.8% in restrained compared to unrestrained eaters across tasks. Restrained eaters consumed significantly less after ego-threat than after the neutral manipulation, but this was associated only with intake of the LF snack. Restrained eaters' intake of dried fruit was suppressed by 33.2% after ego-threat relative to the neutral task, despite a significant increase in hunger for this group following ego-threat. These results suggest that the type and variety of foods offered influences the link between stress and eating in laboratory settings. Further research should aim to replicate and extend these findings, with a view to informing potential interventions for stress-related eating.

  14. An Experimental Analysis of Children's Ability to Provide a False Report about a Crime.

    Science.gov (United States)

    Wyman, Joshua; Foster, Ida; Talwar, Victoria

    2016-05-03

    A considerable amount of research has evaluated children's lie-telling behaviors and skills(1-2); however, limitations with the tasks used for eliciting false testimonies and interviewing children have restricted the generalizability of the findings. The primary aim of the current study is to provide an easy-to-administer and ecologically valid method for measuring the veracity and quality of school-aged children's (ages 6-11) testimonies when they are asked to provide different types of true and false reports. Moreover, the methodology enables researchers to examine the social and developmental factors that could influence the credibility of a child's testimony. In the current study, children will witness a theft, and are then asked to either falsely deny the transgression, falsely accuse a researcher of the theft, or tell the truth. Afterwards, children are to be interviewed by a second researcher using a thorough and ecologically valid interview protocol that requires children to provide closed-ended and free-recall responses about the events with the instigator (E1). Coders then evaluate the length and number of theft-related details the children give throughout the interview, as well as their ability to maintain their true and false reports. The representative results indicate that the truth and lie-telling conditions elicit the intended behaviors from the children. The open-ended interview questions encouraged children to provide free-recall information about their experiences with E1. Moreover, findings from the closed-ended questions suggest that children are significantly better at maintaining their lies with age, and when producing a false denial compared to a false accusation. Results from the current study can be used to develop a greater understanding of the characteristics of children's true and false testimonies about crime, which can potentially benefit law enforcement, legal staff and professionals who interview children.

  15. Advanced experimental analysis of controls on microbial Fe(III) oxide reduction. First year progress report

    Energy Technology Data Exchange (ETDEWEB)

    Roden, E.E.; Urrutia, M.M.

    1997-07-01

    pattern of FeRB growth with different Fe(III) forms, a roughly consistent long-term biomass yield of 5 to 15 mg protein per mmol Fe(III) reduced was observed during growth on different forms of Fe(III). These results should prove useful for quantitative modeling of FeRB growth and metabolism in various types of experimental and in situ anaerobic sedimentary systems.'

  16. Experimental design and reporting standards for improving the internal validity of pre-clinical studies in the field of pain: Consensus of the IMI-Europain consortium

    DEFF Research Database (Denmark)

    Knopp, K.L.; Stenfors, C.; Baastrup, Cathrine Søndergaard

    2015-01-01

    , and significantly impacts the interpretation of failed attempts to replicate published findings. Evidence suggests that systematic biases in experimental design and conduct and insufficiencies in reporting play significant roles in poor reproducibility across pre-clinical studies. It then follows...... is focused on two aspects: experimental design and conduct, and study reporting. Results Minimum requirements for experimental design and conduct were agreed upon across the dimensions of animal characteristics, sample size calculations, inclusion and exclusion criteria, random allocation to groups......, allocation concealment, and blinded assessment of outcome. Building upon the Animals in Research: Reporting in vivo Experiments (ARRIVE) guidelines, reporting standards were developed for pre-clinical studies of pain. These include specific recommendations for reporting on ethical issues, experimental design...

  17. Cross over between ferro and antiferromagnetic order in Fe itinerant electron magnetism: An experimental and theoretical study of the model (Hf,Ta)Fe{sub 2} Laves phases

    Energy Technology Data Exchange (ETDEWEB)

    Diop, L.V.B., E-mail: leopoldbirane@gmail.com [Univ. Grenoble Alpes, Inst NEEL, F-38042 Grenoble (France); CNRS, Inst NEEL, F-38042 Grenoble (France); Benea, D. [Babes-Bolyai University, Faculty of Physics, 400084 Cluj-Napoca (Romania); Mankovsky, S. [Department of Chemistry, University of Munich, Butenandstrasse 5-13, D-81377 München (Germany); Isnard, O. [Univ. Grenoble Alpes, Inst NEEL, F-38042 Grenoble (France); CNRS, Inst NEEL, F-38042 Grenoble (France)

    2015-09-15

    Highlights: • a lattice parameter is found to drive the change from FM to AF magnetic order. • We demonstrate the strong interplay between crystal structure and magnetic order. • Fe magnetic moment is very sensitive to change of the lattice constant a. • A metamagnetic phase transition has been observed. - Abstract: Band structure calculations are reported to describe the effects of Ta for Hf substitution on the electronic structure of the Laves phase of HfFe{sub 2}. According to experimental results emphasis is put on the investigation of the Hf{sub 0.825}Ta{sub 0.175}Fe{sub 2} composition in comparison with the reference HfFe{sub 2} and TaFe{sub 2} compounds. By investigation of the theoretical interatomic exchange interactions constants, we showed the influence of the magnetovolume effect on the magnetic phase stability for one intermediate composition Hf{sub 0.825}Ta{sub 0.175}Fe{sub 2}, chosen in the most interesting part of the magnetic phase diagram with coexistence of ferromagnetic (FM) and antiferromagnetic (AF) behaviour. Evolution of the a lattice parameter is found to drive the change from FM to AF magnetic order. A detailed study of the interatomic Fe–Fe exchange coupling constants and their lattice dependence reveals that the ferromagnetic interaction with the first shell is strongly reduced upon contraction of the a lattice parameter.

  18. Closeout Report: Experimental High Energy Physics Group at the University of South Alabama

    Energy Technology Data Exchange (ETDEWEB)

    Jenkins, Charles M; Godang, Romulus

    2013-06-25

    The High Energy Physics group at the University of South Alabama has been supported by this research grant (DE-FG02-96ER40970) since 1996. One researcher, Dr. Merrill Jenkins, has been supported on this grant during this time worked on fixed target experiments at the Fermi National Accelerator Laboratory, west of Chicago, Illinois. These experiments have been E-705, E-771, E-871 (HyperCP) and E-921 (CKM) before it was canceled for budgetary reasons. After the cancellation of CKM, Dr. Jenkins joined the Compact Muon Solenoid (CMS) experiment as an associate member via the High Energy Physics Group at the Florida State University. A second, recently tenured faculty member, Dr. Romulus Godang joined the group in 2009 and has been supported by this grant since then. Dr. Godang is working on the BaBaR experiment at SLAC and has joined the Belle-II experiment located in Japan at KEK. According to the instructions sent to us by our grant monitor, we are to concentrate on the activities over the last three years in this closeout report.

  19. Model-driven system development: Experimental design and report of the pilot experiment

    CERN Document Server

    España, Sergio; Wieringa, Roel; González, Arturo; Pastor, Óscar

    2011-01-01

    This report describes de design of an experiment that intends to compare two variants of a modeldriven system development method, so as to assess the impact of requirements engineering practice in the quality of the conceptual models. The conceptual modelling method being assessed is the OO-Method [Pastor and Molina 2007]. One of its variants includes Communication Analysis, a communication-oriented requirements engineering method [Espa\\~na, Gonz\\'alez et al. 2009] and a set of guidelines to derive conceptual models from requirements models [Espa\\~na, Ruiz et al. 2011; Gonz\\'alez, Espa\\~na et al. 2011]. The other variant is an ad-hoc, text-based requirements practice similar to the one that is applied in industrial projects by OO-Method practitioners. The goal of the research, summarised according to the Goal/Question/Metric template [Basili and Rombach 1988], is to: *) analyse the resulting models of two model-based information systems analysis method variants; namely, the OO-Method (OOM) and the integration...

  20. Most genome-wide significant susceptibility loci for schizophrenia and bipolar disorder reported to date cross-traditional diagnostic boundaries.

    Science.gov (United States)

    Williams, Hywel J; Craddock, Nicholas; Russo, Giancarlo; Hamshere, Marian L; Moskvina, Valentina; Dwyer, Sarah; Smith, Rhodri L; Green, Elaine; Grozeva, Detelina; Holmans, Peter; Owen, Michael J; O'Donovan, Michael C

    2011-01-15

    Recent findings from genetic epidemiology and from genome-wide association studies point strongly to a partial overlap in the genes that contribute susceptibility to schizophrenia and bipolar disorder (BD). Previous data have also directly implicated one of the best supported schizophrenia-associated loci, zinc finger binding protein 804A (ZNF804A), as showing trans-disorder effects, and the same is true for one of the best supported bipolar loci, calcium channel, voltage-dependent, L type, alpha 1C subunit (CACNA1C) which has also been associated with schizophrenia. We have undertaken a cross-phenotype study based upon the remaining variants that show genome-wide evidence for association in large schizophrenia and BD meta-analyses. These comprise in schizophrenia, SNPs in or in the vicinity of transcription factor 4 (TCF4), neurogranin (NRGN) and an extended region covering the MHC locus on chromosome 6. For BD, the strongly supported variants are in the vicinity of ankyrin 3, node of Ranvier (ANK3) and polybromo-1 (PBRM1). Using data sets entirely independent of their original discoveries, we observed strong evidence that the PBRM1 locus is also associated with schizophrenia (P = 0.00015) and nominally significant evidence (P < 0.05) that the NRGN and the extended MHC region are associated with BD. Moreover, considering this highly restricted set of loci as a group, the evidence for trans-disorder effects is compelling (P = 4.7 × 10(-5)). Including earlier reported data for trans-disorder effects for ZNF804A and CACNA1C, six out of eight of the most robustly associated loci for either disorder show trans-disorder effects.

  1. Cross-sectional study of self-reported ADHD symptoms and psychological comorbidity among college students in Chandigarh, India

    Directory of Open Access Journals (Sweden)

    Ishani Jhambh

    2014-01-01

    Full Text Available Background: Existence of attention deficit hyperactivity disorder (ADHD in adults is scantily researched in India. There is dearth of information on prevalence of ADHD in college students worldwide. Further, fewer studies in the past have evaluated the impact of ADHD on the psychological well-being of college students. Aims: To study the prevalence of ADHD among college students and psychological problems related to ADHD. Design: Cross-sectional study. Subjects and Methods: A total of 237 students were recruited from various medical, engineering, and commerce and arts colleges of Chandigarh, India. They were administered the Adult ADHD Self Report Scale v1.1(ASRS and the Wender Utah Rating Scale (WURS to diagnose adult ADHD. To assess comorbidities; General Health Questionnaire-12 (GHQ; Zung Depression Rating Scale (ZDRS; Rosenberg′s Self-Esteem Scale (RSES;and questions on emotional stability, social problems, and substance use (alcohol, tobacco, and cannabis were administered on all participants. Results: A total of 13 students (5.48% fulfilled the criteria for adult ADHD. These students experienced significantly higher emotional instability and low self-esteem than those without ADHD (N = 224. The occurrence of psychological problems, depression, social problems, and substance abuse was comparable in students with and without ADHD. Conclusions: ADHD is prevalent among the college students studying in the most competitive institutes as well. Students with ADHD experience higher emotional instability and poor self-esteem than others. It has little effect on their psychological well-being and social adjustment. Prompt detection and management of ADHD in college students may help them deal with these problems effectively.

  2. Prevalence of self-reported finger deformations and occupational risk factors among professional cooks: a cross-sectional study

    Directory of Open Access Journals (Sweden)

    Tomita Shigeru

    2011-05-01

    Full Text Available Abstract Background Previous studies have pointed out that the school lunch workers in Japan are suffering from work-related disorders including finger deformations. The purpose of this study was to investigate the prevalence of self-reported finger deformations and the association with job-related risk factors. Methods A cross-sectional questionnaire study of 5,719 subjects (response rate: 81%, 982 men and 4,737 women was undertaken during September 2003 to February 2004. Results Finger deformations were found among 11.7% of the men and 35.6% of the women studied, with significant differences among sex, age and sex-age groups. For both men and women the pattern of finger deformations across the hand was similar for the right and the left hand. For women, the deformations were found in about 10% of the distal interphalangeal joints of all fingers. Based on multiple logistic regression analyses, the factors female sex, age, the number of cooked lunches per cook and cooking activities were independently associated with the prevalence of finger deformations. High prevalence odds ratios were found for those frequently carrying or using tools by hands such as delivering containers, distributing meals, preparing dishes, washing equipment, cutting and stirring foods. Conclusions Among the school lunch workers studied, women had a higher prevalence of finger deformations on all joints of both hands. Various cooking tasks were associated with the prevalence of finger deformations. The results suggest that improvements in working conditions are important for preventing work-related disorders such as finger deformations.

  3. Examining the Relationship between Psychosocial and Behavioral Proxies for Future Consumption Behavior: Self-Reported Impact and Bidding Behavior in an Experimental Auction Study on Cigarette Labeling

    Science.gov (United States)

    Rousu, Matthew C.; Thrasher, James F.

    2014-01-01

    Experimental and observational research often involves asking consumers to self-report the impact of some proposed option. Because self-reported responses involve no consequence to the respondent for falsely revealing how he or she feels about an issue, self-reports may be subject to social desirability and other influences that bias responses in…

  4. Examining the Relationship between Psychosocial and Behavioral Proxies for Future Consumption Behavior: Self-Reported Impact and Bidding Behavior in an Experimental Auction Study on Cigarette Labeling

    Science.gov (United States)

    Rousu, Matthew C.; Thrasher, James F.

    2014-01-01

    Experimental and observational research often involves asking consumers to self-report the impact of some proposed option. Because self-reported responses involve no consequence to the respondent for falsely revealing how he or she feels about an issue, self-reports may be subject to social desirability and other influences that bias responses in…

  5. Pedestrian self-reported use of smart phones: Positive attitudes and high exposure influence intentions to cross the road while distracted.

    Science.gov (United States)

    Lennon, Alexia; Oviedo-Trespalacios, Oscar; Matthews, Sarah

    2017-01-01

    Pedestrian crashes are an important issue globally as pedestrians are a highly vulnerable road user group, accounting for approximately 35% of road deaths worldwide each year. In highly motorised countries, pedestrian distraction by hand held technological devices appears to be an increasing factor in such crashes. An online survey (N=363) was conducted to 1) obtain prevalence information regarding the extent to which people cross the road while simultaneously using mobile phones for potentially distracting activities; 2) identify whether younger adult pedestrians are more exposed to/at risk of injury due to this cause than older adults; and 3) explore whether the Theory of Planned Behaviour (TPB) might provide insight into the factors influencing the target behaviours. Self-reported frequency of using a smart phone for three levels of distraction (visual and cognitive-texting/internet; cognitive only- voice calls; audio only-listening to music) while crossing the road was collected. Results indicated that about 20% of the sample had high exposure to smart phone use while crossing, especially 18-30year olds who were significantly more likely than other age groups to report frequent exposure. TPB constructs of Attitude, Subjective Norm, and Perceived Behavioural Control significantly predicted intentions to use a smart phone while crossing the road, accounting for 62% of variance in Intentions for the entire sample, and 54% of the variance for 18-30year olds. Additional variables of Mobile Phone Involvement and Group Norms provided an additional significant 6% of the variance explained for both groups. Attitude was by far the strongest predictor for both the whole sample and for 18-30year olds, accounting for 38% and 41% explained variance, respectively. This suggests that pedestrians with positive attitudes towards using their smart phones while crossing the road have stronger intentions to do so. Moreover, high exposure was associated with stronger intentions to

  6. 变截面管管内传热与阻力性能研究%The Experimental Performance of Heat Transfer and Pressure Drop in Variable Cross-section Tube

    Institute of Scientific and Technical Information of China (English)

    甄亮; 江楠; 徐百平

    2000-01-01

    On the basis of the orthogonal experiment, nine groups of structure parameters of variable cross-section tubes are issued. After the regression analysis of the experimental data, the correlation of heat transfer and pressure drop of variable cross-section tube in the tube side are obtained in this article. The optimal structure parameter of variable cross-section tube is recommended in the last part of the paper.%根据正交实验设计提出了9种变截面管强化传热管的结构尺寸,并由实验结果回归得到了变截面管的传热与阻力关联式.经过管型的分析比较,筛选出性能比较好的变截面管尺寸参数.

  7. Proton induced K-shell ionization cross sections for a wide range of elements (4 ≤ Z ≤ 92 within ECPSSR theory and updated experimental data

    Directory of Open Access Journals (Sweden)

    B. Deghfel

    2014-10-01

    Full Text Available Within the individual treatment of the elements from beryllium (4Be to uranium (92U, the experimental databases are normalized to their corresponding values of the ECPSSR model to deduce the semi-empirical cross sections. These databases rely on the different compilations available in the literature and on the other data extracted from papers published from 1953 till 2010. In the present paper, a fourth order polynomial was used to fit very well the existing normalized database of K-shell ionization cross sections by proton. These procedures generate a new set of parameters for the sake of the quick calculation of the semi-empirical cross sections. A comparison is made between the deduced results and those obtained by using the ECPSSR model where a remarkable discrepancy is observed at low-proton velocity regime especially for the lightest elements.

  8. Repeated cross-sectional survey of patient-reported asthma control in Europe in the past 5 years

    Directory of Open Access Journals (Sweden)

    P. Demoly

    2012-03-01

    Full Text Available Although the main goal of asthma management guidelines is to achieve and maintain clinical control, reported levels of not well-controlled asthma remain high. The aim of this analysis was to compare the levels of asthma control and the associated impact on patients' health status in Europe in 2006, 2008 and 2010. An additional outcome was the comparison of the burden of asthma with diabetes. Data were obtained from the cross-sectional, self-reported, European National Health and Wellness Surveys conducted in France, Germany, Italy, Spain and the UK. Asthma control (Asthma Control Test™; QualityMetric, Inc., Lincoln, RI, USA and health status (Short Form (SF-12 health survey and the Work Productivity Loss and Activity Impairment questionnaire were assessed. In 2010, the proportion of treated asthma patients assessed as having not well-controlled asthma was 53.5%, compared with 56.6% and 55.0% in 2008 and 2006, respectively. A significant reduction in not well-controlled asthma was observed in Germany between 2006 (72.3% and 2010 (62.5%; p=0.005. Fluctuations in control levels were observed in other countries. For all surveys, having at least well-controlled asthma was associated with a significantly lower number of healthcare contacts in the previous 6 months, better mean±sd SF-12 scores for the physical (data for 2010: not well controlled 39.9±11.38, at least well-controlled 48.0±9.89; p<0.001 and mental (data for 2010: not well-controlled 40.6±10.95, at least well-controlled 45.0±10.91; p<0.001 components, and significantly less impact on Work Productivity Loss and Activity Impairment. Asthma and diabetes were associated with a similar overall negative impact on health status. A substantial proportion of asthmatics remain not well-controlled across five European countries, resulting in a significant impact on health resources and patients' health status. The overall burden of asthma appears to be similar to that of diabetes.

  9. Temperature-dependent infrared cross sections for CFC-11, CFC-12, CFC-13, CFC-14, CFC-22, CFC-113, CFC-114, and CFC-115. Technical report

    Energy Technology Data Exchange (ETDEWEB)

    Massie, S.T.; Goldman, A.; McDaniel, A.H.; Cantrell, C.A.; Davidson, J.A.

    1991-02-01

    The Technical Note presents absorption cross sections at temperatures of 293, 273, 253, 233, 213, and 203K for the chlorofluorocarbon species CFC-11, (CCI3F), CFC-12 (CCI2F2), CFC-13 (CCIF3), CFC-14 (CF4), CFC-22 (CHCIF2), CFC-113 (C2CI3FI3), CFC-114 (C2CI2F4), and CFC-115 (C2CIF5). The infrared cross sections are those reported by McDaniel et al. (1990), and are displayed in graphical form to facilitate quick identification and quantification of CFC gases in high and medium resolution remote sensing studies.

  10. Experimental Report for Thermal Hydraulic Behavior During Startup, Power Change and MCP Transient Operation by using the High Temperature/High Pressure Test Facility(VISTA)

    Energy Technology Data Exchange (ETDEWEB)

    Choi, Ki Yong; Park, Hyun Sik; Cho, Seok; Lee, Sung Jae; Choi, Nam Hyun; Min, Kyong Ho; Song, Chul Hwa; Park, Chun Kyong; Chung, Moon Ki

    2005-07-15

    The VISTA (Experimental Verification by Integral Simulation of Transients and Accidents) is an experimental facility to verify the performance and safety issues of the SMART-P (Pilot plant of the System-integrated Modular Advanced Reactor). The basic design of the SMART-P has been completed by KAERI. The present report describes experimental test results for performance test items, including heatup, power change, MCP transient, and natural circulation operations by using the VISTA facility.

  11. Delineating sampling procedures: Pedagogical significance of analysing sampling descriptions and their justifications in TESL experimental research reports

    Directory of Open Access Journals (Sweden)

    Jason Miin-Hwa Lim

    2011-04-01

    Full Text Available Teaching second language learners how to write research reports constitutes a crucial component in programmes on English for Specific Purposes (ESP in institutions of higher learning. One of the rhetorical segments in research reports that merit attention has to do with the descriptions and justifications of sampling procedures. This genre-based study looks into sampling delineations in the Method-related sections of research articles on the teaching of English as a second language (TESL written by expert writers and published in eight reputed international refereed journals. Using Swales’s (1990 & 2004 framework, I conducted a quantitative analysis of the rhetorical steps and a qualitative investigation into the language resources employed in delineating sampling procedures. This investigation has considerable relevance to ESP students and instructors as it has yielded pertinent findings on how samples can be appropriately described to meet the expectations of dissertation examiners, reviewers, and supervisors. The findings of this study have furnished insights into how supervisors and instructors can possibly teach novice writers ways of using specific linguistic mechanisms to lucidly describe and convincingly justify the sampling procedures in the Method sections of experimental research reports.

  12. Recommended evaluation procedure for photonuclear cross section

    Energy Technology Data Exchange (ETDEWEB)

    Lee, Young-Ouk; Chang, Jonghwa; Fukahori, Tokio [Japan Atomic Energy Research Inst., Tokai, Ibaraki (Japan). Tokai Research Establishment

    1998-03-01

    In order to generate photonuclear cross section library for the necessary applications, data evaluation is combined with theoretical evaluation, since photonuclear cross sections measured cannot provide all necessary data. This report recommends a procedure consisting of four steps: (1) analysis of experimental data, (2) data evaluation, (3) theoretical evaluation and, if necessary, (4) modification of results. In the stage of analysis, data obtained by different measurements are reprocessed through the analysis of their discrepancies to a representative data set. In the data evaluation, photonuclear absorption cross sections are evaluated via giant dipole resonance and quasi-deutron mechanism. With photoabsorption cross sections from the data evaluation, theoretical evaluation is applied to determine various decay channel cross sections and emission spectra using equilibrium and preequilibrium mechanism. After this, the calculated results are compared with measured data, and in some cases the results are modified to better describe measurements. (author)

  13. An experimental and theoretical study to relate uncommon rock/fluid properties to oil recovery. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Watson, R.

    1995-07-01

    Waterflooding is the most commonly used secondary oil recovery technique. One of the requirements for understanding waterflood performance is a good knowledge of the basic properties of the reservoir rocks. This study is aimed at correlating rock-pore characteristics to oil recovery from various reservoir rock types and incorporating these properties into empirical models for Predicting oil recovery. For that reason, this report deals with the analyses and interpretation of experimental data collected from core floods and correlated against measurements of absolute permeability, porosity. wettability index, mercury porosimetry properties and irreducible water saturation. The results of the radial-core the radial-core and linear-core flow investigations and the other associated experimental analyses are presented and incorporated into empirical models to improve the predictions of oil recovery resulting from waterflooding, for sandstone and limestone reservoirs. For the radial-core case, the standardized regression model selected, based on a subset of the variables, predicted oil recovery by waterflooding with a standard deviation of 7%. For the linear-core case, separate models are developed using common, uncommon and combination of both types of rock properties. It was observed that residual oil saturation and oil recovery are better predicted with the inclusion of both common and uncommon rock/fluid properties into the predictive models.

  14. An experimental and theoretical study to relate uncommon rock/fluid properties to oil recovery. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Watson, R.

    1995-07-01

    Waterflooding is the most commonly used secondary oil recovery technique. One of the requirements for understanding waterflood performance is a good knowledge of the basic properties of the reservoir rocks. This study is aimed at correlating rock-pore characteristics to oil recovery from various reservoir rock types and incorporating these properties into empirical models for Predicting oil recovery. For that reason, this report deals with the analyses and interpretation of experimental data collected from core floods and correlated against measurements of absolute permeability, porosity. wettability index, mercury porosimetry properties and irreducible water saturation. The results of the radial-core the radial-core and linear-core flow investigations and the other associated experimental analyses are presented and incorporated into empirical models to improve the predictions of oil recovery resulting from waterflooding, for sandstone and limestone reservoirs. For the radial-core case, the standardized regression model selected, based on a subset of the variables, predicted oil recovery by waterflooding with a standard deviation of 7%. For the linear-core case, separate models are developed using common, uncommon and combination of both types of rock properties. It was observed that residual oil saturation and oil recovery are better predicted with the inclusion of both common and uncommon rock/fluid properties into the predictive models.

  15. Experimental verification of neutron phenomenology in lead and of transmutation by adiabatic resonance crossing in accelerator driven systems A summary of the TARC Project at CERN

    Energy Technology Data Exchange (ETDEWEB)

    Abanades, A.; Aleixandre, J.; Andriamonje, S.; Angelopoulos, A.; Apostolakis, A.; Arnould, H.; Belle, E.; Bompas, C.A.; Brozzi, D.; Bueno, J.; Buono, S.; Carminati, F.; Casagrande, F.; Cennini, P.; Collar, J.I.; Cerro, E.; Moral, R.D.R.Del; Diez, S.; Dumps, L.; Eleftheriadis, C.; Embid, M.; Fernandez, R.; Galvez, J.; Garcia, J.; Geles, C.; Giorni, A.; Gonzalez, E.; Gonzalez, O.; Goulas, I.; Heuer, D.; Hussonnois, M.; Kadi, Y.; Karaiskos, P.; Kitis, G.; Klapisch, R.; Kokkas, P.; Lacoste, V.; Le Naour, C.; Lopez, C.; Loiseaux, J.M.; Martinez-Val, J.M.; Meplan, O.; Nifenecker, H.; Oropesa, J.; Papadopoulos, I.; Pavlopoulos, P.; Perez-Enciso, E.; Perez-Navarro, A.; Perlado, M.; Placci, A.; Poza, M.; Revol, J.-P. E-mail: Jean-Pierre.Revol@cern.ch; Rubbia, C.; Rubio, J.A.; Sakelliou, L.; Saldana, F.; Savvidis, E.; Schussler, F.; Sirvent, C.; Tamarit, J.; Trubert, D.; Tzima, A.; Viano, J.B.; Vieira, S.; Vlachoudis, V.; Zioutas, K

    2001-05-11

    The Transmutation by Adiabatic Resonance Crossing (TARC) experiment was carried out as PS211 at the CERN PS from 1996 to 1999. Energy and space distributions of spallation neutrons (produced by 2.5 and 3.57 GeV/c CERN proton beams) slowing down in a 3.3x3.3x3 m{sup 3} lead volume and neutron capture rates on long-lived fission fragments {sup 99}Tc and {sup 129}I demonstrate that Adiabatic Resonance Crossing (ARC) can be used to eliminate efficiently such nuclear waste and validate innovative simulation.

  16. Transient overshoot extensional rheology of long-chain branched polyethylenes: Experimental and numerical comparisons between filament stretching and cross-slot flow

    DEFF Research Database (Denmark)

    Hoyle, D.M.; Huang, Qian; Auhl, D.

    2013-01-01

    This work analyses the high-strain extensional behavior of long-chain branched polyethylenes, employing two novel extensional rheometer devices, the filament stretching rheometer and the cross-slot extensional rheometer. The filament stretching rheometer uses an active feedback loop to control...... the outflow centre line (named W-cusps). Using constitutive modeling of the observed transient overshoot in extension seen in the filament stretching rheometer and using finite element simulations we show that the overshoot explains the W-cusps seen in the cross-slot extensional rheometer, further confirming...

  17. Experimental verification of neutron phenomenology in lead and of transmutation by adiabatic resonance crossing in accelerator driven systems a summary of the TARC project at CERN

    CERN Document Server

    Abánades, A; Andriamonje, Samuel A; Angelopoulos, Angelos; Apostolakis, Alcibiades J; Arnould, H; Belle, E; Bompas, C A; Brozzi, Delecurgo; Bueno, J; Buono, S; Carminati, F; Casagrande, Federico; Cennini, P; Collar, J I; Cerro, E; Del Moral, R; Díez, S; Dumps, Ludwig; Eleftheriadis, C; Embid, M; Fernández, R; Gálvez, J; García, J; Gelès, C; Giorni, A; González, E; González, O; Goulas, I; Heuer, R D; Hussonnois, M; Kadi, Y; Karaiskos, P; Kitis, G; Klapisch, Robert; Kokkas, P; Lacoste, V; Le Naour, C; López, C; Loiseaux, J M; Martínez-Val, J M; Méplan, O; Nifnecker, H; Oropesa, J; Papadopoulos, I M; Pavlopoulos, P; Pérez-Enciso, E; Pérez-Navarro, A; Perlado, M; Placci, Alfredo; Poza, M; Revol, Jean Pierre Charles; Rubbia, Carlo; Rubio, Juan Antonio; Sakelliou, L; Saldaña, F; Savvidis, E; Schussler, F; Sirvent, C; Tamarit, J; Trubert, D; Tzima, A; Viano, J B; Vieira, S L; Vlachoudis, V; Zioutas, Konstantin

    2001-01-01

    The Transmutation by Adiabatic Resonance Crossing (TARC) experiment was carried out as PS211 at the CERN PS from 1996 to 1999. Energy and space distributions of spallation neutrons (produced by 2.5 and 3.57 GeV/c CERN proton beams) slowing down in a 3.3*3.3*3 m/sup 3/ lead volume and neutron capture rates on long-lived fission fragments /sup 99/Tc and /sup 129/I demonstrate that Adiabatic Resonance Crossing (ARC) can be used to eliminate efficiently such nuclear waste and validate innovative simulation. (9 refs).

  18. Cross Sections for Neutron-induced Reactions on Actinide Targets Extracted from Surrogate Experiments: A Status Report

    Energy Technology Data Exchange (ETDEWEB)

    Escher, J E; Burke, J T; Dietrich, F S; Lesher, S R; Scielzo, N D; Thompson, I J; Younes, W

    2009-10-01

    The Surrogate nuclear reactions method, an indirect approach for determining cross sections for compound-nuclear reactions involving difficult-to-measure targets, is reviewed. Focusing on cross sections for neutron-induced reactions on actinides, we review the successes of past and present applications of the method and assess its uncertainties and limitations. The approximations used in the analyses of most experiments work reasonably well for (n,f) cross sections for neutron energies above 1-2 MeV, but lead to discrepancies for low-energy (n,f) reactions, as well as for (n,{gamma}) applications. Correcting for some of the effects neglected in the approximate analyses leads to improved (n,f) results. We outline steps that will further improve the accuracy and reliability of the Surrogate method and extend its applicability to reactions that cannot be approached with the present implementation of the method.

  19. BENSC experimental reports 2003

    Energy Technology Data Exchange (ETDEWEB)

    Kirschbaum, Y.; Tovar, M.; Bischoff, D.; Michaelsen, R. (eds.)

    2004-04-01

    The following topics are dealt with: Magnetic structure and phase transitions, magnetic thin films, chemical structure, structural excitations, soft matter, biology, material science and industrial applications, development of instruments and methods, fundamental physics. (HSI)

  20. Man-machine Integration Design and Analysis System (MIDAS) Task Loading Model (TLM) experimental and software detailed design report

    Science.gov (United States)

    Staveland, Lowell

    1994-01-01

    This is the experimental and software detailed design report for the prototype task loading model (TLM) developed as part of the man-machine integration design and analysis system (MIDAS), as implemented and tested in phase 6 of the Army-NASA Aircrew/Aircraft Integration (A3I) Program. The A3I program is an exploratory development effort to advance the capabilities and use of computational representations of human performance and behavior in the design, synthesis, and analysis of manned systems. The MIDAS TLM computationally models the demands designs impose on operators to aide engineers in the conceptual design of aircraft crewstations. This report describes TLM and the results of a series of experiments which were run this phase to test its capabilities as a predictive task demand modeling tool. Specifically, it includes discussions of: the inputs and outputs of TLM, the theories underlying it, the results of the test experiments, the use of the TLM as both stand alone tool and part of a complete human operator simulation, and a brief introduction to the TLM software design.

  1. The Irish Working Group on Information Literacy (WGIL) - Part II: Report of Cross-Sector Activity 2006 - 2008 and Recommendations for Action

    OpenAIRE

    2009-01-01

    In 2006, the Library Association of Ireland (LAI) Working Group on Information Literacy (WGIL) was established with an agreed role to ‘recommend strategies for the development of information skills education at both theoretical and practical level in the library and information services sector in Ireland’. A two-year review of current information literacy activity in the Republic of Ireland by WGIL culminated in the completion of a cross-sectoral report which provides a snapshot of informatio...

  2. An explorative cross-sectional study examining self-reported health and nutritional status of disadvantaged people using food banks in Germany

    OpenAIRE

    Depa, Julia; Hilzendegen, Carolin; Tinnemann, Peter; Stroebele-Benschop, Nanette

    2015-01-01

    Background Even in high-income countries some population groups depend on food banks to support their food intake. We aimed to explore and compare health and nutritional status of food bank clients (Tafel e.V.) in different cities in Germany. Methods In a cross-sectional study, self-reported health and nutritional status of food bank clients living in three cities (Berlin - capital, Ludwigsburg- affluent city, Fulda - small town) which differ in size, available income and poverty rate, were a...

  3. Forced Convection Film Boiling Heat Transfer from a Horizontal Cylinder to Liquid Cross-flowing Upward : 2nd Report, Subcooled Liquid

    OpenAIRE

    Shigechi, Tooru; Ito, Takehiro; Nishikawa, Kaneyasu

    1983-01-01

    Forced convection film boiling heat transfer from a horizontal cylinder to a subcooled liquid cross-flowing upward is analysed based on the two-phase boundary-layer theory. Numerical solution of the conservation equations is determined for subcooled water, ethanol and hexane under the atmospheric pressure by the method similar to that of the first report for saturated liquid. The velocity profile, the separation point in the vapor film, the thickness of the boundary-layer and the average Nuss...

  4. Functional Fitness and Self-Reported Quality of Life of Older Women Diagnosed with Knee Osteoarthrosis: A Cross-Sectional Case Control Study

    OpenAIRE

    Paula Andréa Malveira Cavalcante; Márcio Roberto Doro; Frank Shiguemitsu Suzuki; Roberta Luksevicius Rica; Andrey Jorge Serra; Francisco Luciano Pontes Junior; Alexandre Lopes Evangelista; Aylton José Figueira Junior; Julien Steven Baker; Danilo Sales Bocalini

    2015-01-01

    Aim. Utilizing a cross-sectional case control design, the aim of this study was to evaluate the functional fitness and self-reported quality of life differences in older people diagnosed with knee osteoarthrosis (O) who participated in health promotion groups. Methods. Ninety older women were distributed into two groups: control without O of the knee (C, n = 40) and a group diagnosed with primary and secondary knee O with grade II or higher, with definite osteophytes (OA, n = 50). Functional ...

  5. Differences in reporting serious adverse events in industry sponsored clinical trial registries and journal articles on antidepressant and antipsychotic drugs: a cross-sectional study

    OpenAIRE

    Hughes, S; Cohen, D.; Jaggi, R

    2014-01-01

    Objective: To examine the degree of concordance in reporting serious adverse events (SAEs) from antidepressant and antipsychotic drug trials among journal articles and clinical trial summaries, and to categorise types of discrepancies. Design: Cross-sectional study of summaries of all antidepressant and antipsychotic trials included in an online trial registry and their first associated stand-alone journal articles. Setting: Clinicalstudyresults.org, sponsored by Pharmaceutical Research and M...

  6. Clinical trial registration, reporting, publication and FDAAA compliance: a cross-sectional analysis and ranking of new drugs approved by the FDA in 2012

    OpenAIRE

    Miller, Jennifer E.; Korn, David; Ross, Joseph S

    2015-01-01

    Objective: To evaluate clinical trial registration, reporting and publication rates for new drugs by: (1) legal requirements and (2) the ethical standard that all human subjects research should be publicly accessible to contribute to generalisable knowledge. Design: Cross-sectional analysis of all clinical trials submitted to the Food and Drug Administration (FDA) for drugs approved in 2012, sponsored by large biopharmaceutical companies. Data sources Information from Drugs@FDA, ClinicalTrial...

  7. Features and implications of different LHC crossing schemes

    CERN Document Server

    Herr, Werner

    2003-01-01

    To avoid unwanted beam-beam interactions, the two LHC beams cross at an angle in all experimental interaction points. The choice of the crossing plane in the different areas has fundamental consequences on the effects of the long range beam-beam interaction. Recent changes to the hardware, i.e. introduction of a beam screen into the triplet quadrupoles, may limit this choice or reduce the flexibility. The consequences of different crossing scenarios are presented in this report. Other implications such as limitations to the correction possibilities and the flexibility of the crossing geometry are addressed.

  8. Long-term durability testing of ceramic cross-flow filter. Final report, September 29, 1987--December 31, 1992

    Energy Technology Data Exchange (ETDEWEB)

    Lippert, T.E.; Smeltzer, E.E.; Alvin, M.A.; Bachovchin, D.M.

    1993-08-01

    Long term durability testing of the cross flow filter is described. Two high temperature, high pressure test facilities were built and operated. The facilities were designed to simulate dirty gas environments typical of Pressurized Fluidized Bed Combustion (PFBC) and coal gasification. Details of the design and operation of the test facilities and filter testing results are described.

  9. A facile reporter system for the experimental identification of twin-arginine translocation (Tat) signal peptides from all kingdoms of life

    NARCIS (Netherlands)

    Widdick, David A.; Eijlander, Robyn T.; van Dijl, Jan Maarten; Kuipers, Oscar P.; Palmer, Tracy

    2008-01-01

    We have developed a reporter protein system for the experimental verification of twin-arginine signal peptides. This reporter system is based on the Streptomyces coelicolor agarase protein, which is secreted into the growth medium by the twin-arginine translocation (Tat) pathway and whose extracellu

  10. Experimental Design and Data Analysis in Receiver Operating Characteristic Studies: Lessons Learned from Reports in Radiology from 1997 to 20061

    Science.gov (United States)

    Shiraishi, Junji; Pesce, Lorenzo L.; Metz, Charles E.; Doi, Kunio

    2009-01-01

    Purpose: To provide a broad perspective concerning the recent use of receiver operating characteristic (ROC) analysis in medical imaging by reviewing ROC studies published in Radiology between 1997 and 2006 for experimental design, imaging modality, medical condition, and ROC paradigm. Materials and Methods: Two hundred ninety-five studies were obtained by conducting a literature search with PubMed with two criteria: publication in Radiology between 1997 and 2006 and occurrence of the phrase “receiver operating characteristic.” Studies returned by the query that were not diagnostic imaging procedure performance evaluations were excluded. Characteristics of the remaining studies were tabulated. Results: Two hundred thirty-three (79.0%) of the 295 studies reported findings based on observers' diagnostic judgments or objective measurements. Forty-three (14.6%) did not include human observers, with most of these reporting an evaluation of a computer-aided diagnosis system or functional data obtained with computed tomography (CT) or magnetic resonance (MR) imaging. The remaining 19 (6.4%) studies were classified as reviews or meta-analyses and were excluded from our subsequent analysis. Among the various imaging modalities, MR imaging (46.0%) and CT (25.7%) were investigated most frequently. Approximately 60% (144 of 233) of ROC studies with human observers published in Radiology included three or fewer observers. Conclusion: ROC analysis is widely used in radiologic research, confirming its fundamental role in assessing diagnostic performance. However, the ROC studies reported in Radiology were not always adequate to support clear and clinically relevant conclusions. © RSNA, 2009 Supplemental material: http://radiology.rsna.org/lookup/suppl/doi:10.1148/radiol.2533081632/-/DC1 PMID:19864510

  11. Weaknesses in the reporting of cross-sectional studies according to the STROBE statement the case of metabolic syndrome in adults from Peru

    Directory of Open Access Journals (Sweden)

    Jose Carlos Tapia

    2015-12-01

    Full Text Available Introduction:The inadequate reporting of cross-sectional studies, as in the case of the prevalence of metabolic syndrome, could cause problems in the synthesis of new evidence and lead to errors in the formulation of public policies.Objective:To evaluate the reporting quality of the articles regarding metabolic syndrome prevalence in Peruvian adults using the STROBE recommendations.Methods:We conducted a thorough literature search with the terms "Metabolic Syndrome", "Sindrome Metabolico" and "Peru" in MEDLINE/PubMed, LILACS, SciELO, LIPECS and BVS-Peru until December 2014. We selected those who were population-based observational studies with randomized sampling that reported prevalence of metabolic syndrome in adults aged 18 or more of both sexes. Information was analysed through the STROBE score per item and recommendation.Results:Seventeen articles were included in this study. All articles met the recommendations related to the report of the study's rationale, design, and provision of summary measures. The recommendations with the lowest scores were those related to the sensitivity analysis (8%, n= 1/17, participant flowchart (18%, n= 3/17, missing data analysis (24%, n= 4/17, and number of participants in each study phase (24%, n= 4/17.Conclusion:Cross-sectional studies regarding the prevalence of metabolic syndrome in peruvian adults have an inadequate reporting on the methods and results sections. We identified a clear need to improve the quality of such studies.

  12. Inverted social reward: associations between psychopathic traits and self-report and experimental measures of social reward.

    Directory of Open Access Journals (Sweden)

    Lucy Foulkes

    Full Text Available Individuals with high levels of psychopathic traits tend to undervalue long-term, affiliative relationships, but it remains unclear what motivates them to engage in social interactions at all. Their experience of social reward may provide an important clue. In Study 1 of this paper, a large sample of participants (N  =  505 completed a measure of psychopathic traits (Self-Report Psychopathy Scale Short-Form and a measure of social reward value (Social Reward Questionnaire to explore what aspects of social reward are associated with psychopathic traits. In Study 2 (N = 110, the same measures were administered to a new group of participants along with two experimental tasks investigating monetary and social reward value. Psychopathic traits were found to be positively correlated with the enjoyment of callous treatment of others and negatively associated with the enjoyment of positive social interactions. This indicates a pattern of 'inverted' social reward in which being cruel is enjoyable and being kind is not. Interpersonal psychopathic traits were also positively associated with the difference between mean reaction times (RTs in the monetary and social experimental reward tasks; individuals with high levels of these traits responded comparatively faster to social than monetary reward. We speculate that this may be because social approval/admiration has particular value for these individuals, who have a tendency to use and manipulate others. Together, these studies provide evidence that the self-serving and cruel social behaviour seen in psychopathy may in part be explained by what these individuals find rewarding.

  13. Experimental Demonstration of the Effectiveness of Electromagnetically Induced Transparency for Enhancing Cross-Phase Modulation in the Short-Pulse Regime

    Science.gov (United States)

    Dmochowski, Greg; Feizpour, Amir; Hallaji, Matin; Zhuang, Chao; Hayat, Alex; Steinberg, Aephraim M.

    2016-04-01

    We present an experiment using a sample of laser-cooled Rb atoms to show that cross-phase modulation schemes continue to benefit from electromagnetically induced transparency (EIT) even as the transparency window is made narrower than the signal bandwidth (i.e., for signal pulses much shorter than the response time of the EIT system). Addressing concerns that narrow EIT windows might not prove useful for such applications, we show that while the peak phase shift saturates in this regime, it does not drop, and the time-integrated effect continues to scale inversely with EIT window width. This integrated phase shift is an important figure of merit for tasks such as the detection of single-photon-induced cross-phase shifts. Only when the window width approaches the system's dephasing rate γ does the peak phase shift begin to decrease, leading to an integrated phase shift that peaks when the window width is equal to 4 γ .

  14. Experimental cross section for the {sup 152}Sm(n, γ){sup 153}Sm reaction at 0.0334 eV

    Energy Technology Data Exchange (ETDEWEB)

    Uddin, M. Shuza; Datta, Tapash Kumar; Hossain, Syed Mohammod; Zakaria, A.K.M.; Islam, Mohammad Amirul; Naher, Kamrun; Shariff, M. Asad; Yunus, S.M. [Atomic Energy Research Establishment, Dhaka (Bangladesh). Inst. of Nuclear Science and Technology; Afroze, Nasmin [Atomic Energy Research Establishment, Dhaka (Bangladesh). Inst. of Nuclear Science and Technology; Jahangirnagar Univ., Dhaka (Bangladesh). Dept. of Physics; Islam, S.M. Ajharul [Jahangirnagar Univ., Dhaka (Bangladesh). Dept. of Physics

    2014-10-01

    The neutron capture cross section for the {sup 152}Sm(n, γ){sup 153}Sm reaction at an energy of 0.0334 eV was measured for the first time using monochromatic neutrons of a powder diffractometer at the TRIGA Mark II nuclear reactor at Dhaka, Bangladesh. The {sup 197}Au(n, γ){sup 198}Au reaction was used to monitor the neutron beam intensity. The radioactivity of the products was determined via high resolution γ-ray spectrometry. The obtained cross section value is 184 ± 22b, which is consistent with both the ENDF/B-VII and TENDL-2012 data libraries. The measured value at 0.0334 eV and the previous data at 0.0536 eV confirm the reliability of the data in the above libraries. (orig.)

  15. Experimental cross section for the {sup 139}La(n, {gamma}){sup 140}La reaction at 0.0536 eV

    Energy Technology Data Exchange (ETDEWEB)

    Chowdhury, M.H. [Inst. of Nuclear Science and Tech., Atomic Energy Research Establishment, Dhaka (Bangladesh); Dept. of Physics, Jahangirnagar Univ., Savar, Dhaka (Bangladesh); Uddin, M.S.; Hossain, S.M.; Latif, S.A; Hafiz, M.A.; Islam, M.A.; Zakaria, A.K.M. [Inst. of Nuclear Science and Tech., Atomic Energy Research Establishment, Dhaka (Bangladesh); Azharul Islam, S.M [Dept. of Physics, Jahangirnagar Univ., Savar, Dhaka (Bangladesh)

    2010-07-01

    The neutron capture cross section for the {sup 139}La(n, {gamma}){sup 140}La reaction at 0.0536 eV was measured for the first time using monochromatic neutrons coming from a Triple Axis Spectrometer at the TRIGA Mark-II reactor. The neutron beam intensity was determined by irradiating Au-monitor foil together La{sub 2}O{sub 3} target. The radioactivity of the products was determined via high resolution {gamma}-ray spectrometry. The obtained cross section value is 6.13 {+-} 0.3 b, which is 1.34% and 0.21% lower than that in the ENDF/B-VII and JENDL-3.3 data library, respectively. (orig.)

  16. Experimental studies on the neutron emission spectrum and activation cross-section for 40 MeV deuterons in IFMIF accelerator structural elements

    Energy Technology Data Exchange (ETDEWEB)

    Hagiwara, M. E-mail: hagi@cyric.tohoku.ac.jp; Itoga, T.; Baba, M.; Uddin, M.S.; Hirabayashi, N.; Oishi, T.; Yamauchi, T

    2004-08-01

    In order to improve the nuclear data required in the safety design of the International Fusion Materials Irradiation Facility (IFMIF), we have measured the neutron emission spectra and the activation cross-sections of the IFMIF accelerator structural elements, C and Al, for 40 MeV deuterons using the Tohoku University AVF cyclotron. Neutron spectra from thick C and Al targets were measured with the time-of-flight method at ten laboratory angles between 0- and 110-deg. using a beam swinger system and a well collimated neutron flight channel. The data were obtained over almost entire energy range of secondary neutrons using a two-detector method. Activation cross-sections were measured by detecting the {gamma}-rays from C and Al targets with a high-pure Ge detector. The stacked target technique was used to obtain the data from 40 MeV down to the threshold energy.

  17. Extraction of $t$-slopes from experimental $\\gamma p\\rightarrow K^+\\Lambda$ and $\\gamma p\\rightarrow K^+\\Sigma_0$ cross section data

    CERN Document Server

    Freese, Adam; Badui, Rafael; Guo, Lei; Raue, Brian

    2016-01-01

    We analyze recent $K^+$ meson photoproduction data from the CLAS collaboration for the reactions $\\gamma p\\rightarrow K^+\\Lambda$ and $\\gamma p\\rightarrow K^+\\Sigma_0$, fitting measured forward-angle differential cross sections to the form $Ae^{Bt}$. We develop a quantitative scheme for determining the kinematic region where the fit is to be done, and, from the extracted $t$-slope $B$, determine whether single-Reggeon exchange can explain the production mechanism. We find that, in the region $5 < s < 8.1$ GeV$^2$, production of the $K^+\\Lambda$ channel can be explained by single $K^+$ Reggeon exchange, but the $K^+\\Sigma_0$ production channel cannot. We verify these conclusions by fitting the data to a differential cross section produced by the interfering sum of two exponential amplitudes.

  18. Experimental cross section of the {sup 71}Ga(n,γ){sup 72}Ga reaction at 0.0334 eV energy

    Energy Technology Data Exchange (ETDEWEB)

    Afroze, N. [Institute of Nuclear Science and Technology, Atomic Energy Research Establishment, GPO Box No. 3787, Savar, Dhaka 1000 (Bangladesh); Department of Physics, Jahangirnagar University, Savar, Dhaka (Bangladesh); Uddin, M.S., E-mail: md.shuzauddin@yahoo.com [Institute of Nuclear Science and Technology, Atomic Energy Research Establishment, GPO Box No. 3787, Savar, Dhaka 1000 (Bangladesh); Hossain, S.M.; Islam, M.A.; Shariff, M.A.; Zakaria, A.K.M.; Datta, T.K. [Institute of Nuclear Science and Technology, Atomic Energy Research Establishment, GPO Box No. 3787, Savar, Dhaka 1000 (Bangladesh); Azharul Islam, S.M. [Department of Physics, Jahangirnagar University, Savar, Dhaka (Bangladesh)

    2014-10-01

    Highlights: •Neutrons were monochromatized from powder diffractometer. •The cross section of the {sup 71}Ga(n,γ){sup 72}Ga reaction at 0.0334 eV was measured. •The {sup 197}Au(n,γ){sup 198}Au reaction was used to monitor the neutron beam intensity. •Only thermal neutrons of a single energy was used for irradiation. -- Abstract: The cross section of the {sup 71}Ga(n,γ){sup 72}Ga reaction at 0.0334 eV was measured for the first time using monochromatic neutrons from powder diffractometer at TRIGA Mark II nuclear reactor. The {sup 197}Au(n,γ){sup 198}Au reaction was used to monitor the neutron beam intensity. The HPGe γ-ray spectrometry was used to determine the radioactivity of the product radionuclides. The obtained cross section value amounted 3.42 ± 0.27 b is about 95% consistent with JENDL-4, but about 17% and 14% lower than that of the ENDF/B-VII and TENDL-2012 data libraries, respectively. The measured value at 0.0334 eV and the previous measured value at 0.0536 eV would be useful to confirm the reliability of the data evaluated by 1/v relation in the above libraries.

  19. No association between nickel allergy and reporting cosmetic dermatitis from mascara or eye shadow: a cross-sectional general population study

    DEFF Research Database (Denmark)

    Thyssen, J P; Linneberg, A; Menné, T;

    2010-01-01

    dermatitis and nickel in make-up products remains controversial. OBJECTIVE: This cross-sectional patch test study investigated whether the frequency of self-reported cosmetic dermatitis from mascara or eye shadow use was higher among nickel allergic Danish women than women without nickel allergy. METHODS......: In 2006, a total of 1843 18-69 year old women completed a postal questionnaire including questions on cosmetic dermatitis and were patch tested with nickel sulphate. Data were analysed by logistic regression analyses and associations were expressed as odds ratios (ORs) with 95% confidence intervals (CIs......). RESULTS: The prevalence of nickel allergy was similar among women who reported cosmetic dermatitis from eye shadow or mascara and among women who did not report such symptoms. Cosmetic dermatitis was positively associated with self-reported atopic dermatitis and age. CONCLUSION: Overall, no association...

  20. An electron-impact cross section data set (10 eV-1 keV) of DNA constituents based on consistent experimental data: A requisite for Monte Carlo simulations

    Science.gov (United States)

    Bug, Marion U.; Yong Baek, Woon; Rabus, Hans; Villagrasa, Carmen; Meylan, Sylvain; Rosenfeld, Anatoly B.

    2017-01-01

    This work provides the first cross section data set of DNA constituents for an impact of electrons in the energy range between about 10 eV and 1 keV on a DNA target. The data set is designed for an implementation in Monte Carlo simulations and consists of model functions, taking into account elastic scattering, ionization and excitation interactions with the DNA constituents tetrahydrofuran, trimethylphosphate, pyrimidine and purine. It was developed on the basis of experimentally determined absolute differential and total scattering cross sections in accordance with the available literature data. The data set will be available in the Geant4-DNA toolkit to allow secondary electron transport in a DNA-like medium down to the ionization threshold.

  1. Construct and concurrent validity of a patient-reported adverse drug event questionnaire : a cross-sectional study

    NARCIS (Netherlands)

    de Vries, Sieta T.; Haaijer-Ruskamp, Flora M.; de Zeeuw, Dick; Denig, Petra

    2014-01-01

    Background: Direct patient-reported information about adverse drug events (ADEs) is important since it adds to healthcare professional-reported information about the safety of drugs. Previously, we developed an instrument to assess patient-reported ADEs in research settings. The aim of this study is

  2. Traumatic Tear of the Latissimus Dorsi Myotendinous Junction: Case Report of a CrossFit-Related Injury.

    Science.gov (United States)

    Friedman, Michael V; Stensby, J Derek; Hillen, Travis J; Demertzis, Jennifer L; Keener, Jay D

    2015-01-01

    A case of a latissimus dorsi myotendinous junction strain in an avid CrossFit athlete is presented. The patient developed acute onset right axillary burning and swelling and subsequent palpable pop with weakness while performing a "muscle up." Magnetic resonance imaging examination demonstrated a high-grade tear of the right latissimus dorsi myotendinous junction approximately 9 cm proximal to its intact humeral insertion. There were no other injuries to the adjacent shoulder girdle structures. Isolated strain of the latissimus dorsi myotendinous junction is a very rare injury with a scarcity of information available regarding its imaging appearance and preferred treatment. This patient was treated conservatively and was able to resume active CrossFit training within 3 months. At 6 months postinjury, he had only a mild residual functional deficit compared with his preinjury level.

  3. Cross-sectional study of self-reported ADHD symptoms and psychological comorbidity among college students in Chandigarh, India

    OpenAIRE

    Ishani Jhambh; Priti Arun; Jasmin Garg

    2014-01-01

    Background: Existence of attention deficit hyperactivity disorder (ADHD) in adults is scantily researched in India. There is dearth of information on prevalence of ADHD in college students worldwide. Further, fewer studies in the past have evaluated the impact of ADHD on the psychological well-being of college students. Aims: To study the prevalence of ADHD among college students and psychological problems related to ADHD. Design: Cross-sectional study. Subjects and Methods: A total of 237 st...

  4. Experimental reduction of pain catastrophizing modulates pain report but not spinal nociception as verified by mediation analyses.

    Science.gov (United States)

    Terry, Ellen L; Thompson, Kathryn A; Rhudy, Jamie L

    2015-08-01

    Pain catastrophizing is associated with enhanced pain; however, the mechanisms by which it modulates pain are poorly understood. Evidence suggests that catastrophizing modulates supraspinal processing of pain but does not modulate spinal nociception (as assessed by nociceptive flexion reflex [NFR]). Unfortunately, most NFR studies have been correlational. To address this, this study experimentally reduced catastrophizing to determine whether it modulates spinal nociception (NFR). Healthy pain-free participants (N = 113) were randomly assigned to a brief 30-minute catastrophizing reduction manipulation or a control group that received pain education. Before and after manipulations, 2 types of painful stimuli were delivered to elicit (1) NFR (single trains of stimuli) and (2) temporal summation of NFR (3 stimulations at 2 Hz). After each set of stimuli, participants were asked to report their pain intensity and unpleasantness, as well as their situation-specific catastrophizing. Manipulation checks verified that catastrophizing was effectively reduced. Furthermore, pain intensity and unpleasantness to both stimulation types were reduced by the catastrophizing manipulation, effects that were mediated by catastrophizing. Although NFRs were not affected by the catastrophizing manipulation, temporal summation of NFR was reduced. However, this effect was not mediated by catastrophizing. These results indicate that reductions in catastrophizing lead to reductions in pain perception but do not modulate spinal nociception and provides further evidence that catastrophizing modulates pain at the supraspinal, not the spinal, level.

  5. A quasi-experimental cross-disciplinary evaluation of the impacts of education outside the classroom on pupils’ physical activity, well-being and learning: the TEACHOUT study protocol

    DEFF Research Database (Denmark)

    Nielsen, Glen; Mygind, Erik; Bølling, Mads;

    2016-01-01

    innovative teaching methods, child-led approaches to problem-solving, experimentation, cooperation, PA, and play. EOTC has become common practice for many teachers in Scandinavia; however, only case studies have evaluated its impacts. The TEACHOUT study aims to evaluate the impacts of EOTC on Danish...... schoolchildren’s PA, social relations, motivation, well-being, and learning. Methods: TEACHOUT is a quasi-experimental, cross-disciplinary study. Sixteen schools participated, containing 19 EOTC school classes and 19 parallel non-EOTC classes, with a total of 834 children aged 9 to 13 years. Measures...... design and combination of scientific disciplines and methods, as well as its focus on the interdependent relations between learning, PA, social relations, well-being, and motivation. This will result in a comprehensive picture of school health promotion and children’s health and well-being, which...

  6. Report on the Predation Index, Predator Control Fisheries, and Program Evaluation for the Columbia River Basin Experimental Northern Pikeminnow Management Program, 2008 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Porter, Russell [Pacific States Marine Fisheries Commission].

    2009-09-10

    This report presents results for year seventeen in the basin-wide Experimental Northern Pikeminnow Management Program to harvest northern pikeminnow1 (Ptychocheilus oregonensis) in the Columbia and Snake Rivers. This program was started in an effort to reduce predation by northern pikeminnow on juvenile salmonids during their emigration from natal streams to the ocean. Earlier work in the Columbia River Basin suggested predation by northern pikeminnow on juvenile salmonids might account for most of the 10-20% mortality juvenile salmonids experience in each of eight Columbia River and Snake River reservoirs. Modeling simulations based on work in John Day Reservoir from 1982 through 1988 indicated that, if predator-size northern pikeminnow were exploited at a 10-20% rate, the resulting restructuring of their population could reduce their predation on juvenile salmonids by 50%. To test this hypothesis, we implemented a sport-reward angling fishery and a commercial longline fishery in the John Day Pool in 1990. We also conducted an angling fishery in areas inaccessible to the public at four dams on the mainstem Columbia River and at Ice Harbor Dam on the Snake River. Based on the success of these limited efforts, we implemented three test fisheries on a system-wide scale in 1991 - a tribal longline fishery above Bonneville Dam, a sport-reward fishery, and a dam-angling fishery. Low catch of target fish and high cost of implementation resulted in discontinuation of the tribal longline fishery. However, the sport-reward and dam-angling fisheries were continued in 1992 and 1993. In 1992, we investigated the feasibility of implementing a commercial longline fishery in the Columbia River below Bonneville Dam and found that implementation of this fishery was also infeasible. Estimates of combined annual exploitation rates resulting from the sport-reward and dam-angling fisheries remained at the low end of our target range of 10-20%. This suggested the need for additional

  7. Management Plan for Experimental Reintroduction of Sockeye into Skaha Lake; Proposed Implementation, Monitoring, and Evaluation, 2004 Technical Report.

    Energy Technology Data Exchange (ETDEWEB)

    Wright, Howie; Smith, Howard (Okanagan Nation Alliance, Fisheries Department, Westbank, BC, Canada)

    2004-01-01

    Okanagan River sockeye salmon, which spawn near the town of Oliver, B.C., have their farther upstream migration limited by several water control and diversion dams. Stock numbers have been declining for many years and the Okanagan Native Alliance Fisheries Department (ONAFD) has been the principal advocate of a program to restore their numbers and range by reintroducing them into upstream waters where they may once have occurred in substantial numbers Some investigators have warned that without effective intervention Okanagan sockeye are at considerable risk of extinction. Among a host of threats, the quality of water in the single nursery areas in Osoyoos Lake. is deteriorating and a sanctuary such as that afforded in larger lakes higher in the system could be essential. Because the proposed reintroduction upstream has implications for other fish species, (particularly kokanee, the so-called ''landlocked sockeye'' which reside in many Okanagan lakes), the proponents undertook a three-year investigation, with funding from the Bonneville Power Administration and the Confederated Tribes of the Colville Reservation, to identify possible problem areas, and they committed to an interim experimental reintroduction to Skaha Lake where any problems could be worked out before a more ambitious reintroduction, (e.g. to Okanagan Lake) could be formally considered. The three-year investigation was completed in the spring of 2003. It included an assessment of risks from disease or the possible introduction of unwanted exotic species. It also considered the present quality and quantity of sockeye habitat, and opportunities for expanding or improving it. Finally ecological complexity encouraged the development of a life history model to examine interactions of sockeye with other fishes and their food organisms. While some problem areas were exposed in the course of these studies, they appeared to be manageable and the concept of an experimental reintroduction

  8. Medication Errors in a Swiss Cardiovascular Surgery Department: A Cross-Sectional Study Based on a Novel Medication Error Report Method

    Directory of Open Access Journals (Sweden)

    Kaspar Küng

    2013-01-01

    Full Text Available The purpose of this study was (1 to determine frequency and type of medication errors (MEs, (2 to assess the number of MEs prevented by registered nurses, (3 to assess the consequences of ME for patients, and (4 to compare the number of MEs reported by a newly developed medication error self-reporting tool to the number reported by the traditional incident reporting system. We conducted a cross-sectional study on ME in the Cardiovascular Surgery Department of Bern University Hospital in Switzerland. Eligible registered nurses ( involving in the medication process were included. Data on ME were collected using an investigator-developed medication error self reporting tool (MESRT that asked about the occurrence and characteristics of ME. Registered nurses were instructed to complete a MESRT at the end of each shift even if there was no ME. All MESRTs were completed anonymously. During the one-month study period, a total of 987 MESRTs were returned. Of the 987 completed MESRTs, 288 (29% indicated that there had been an ME. Registered nurses reported preventing 49 (5% MEs. Overall, eight (2.8% MEs had patient consequences. The high response rate suggests that this new method may be a very effective approach to detect, report, and describe ME in hospitals.

  9. Alterations in cerebrospinal fluid PO(2), PCO(2), and pH measurements during and after experimental thoracic aortic cross-clamping.

    Science.gov (United States)

    Ulus, Fatma; Hellberg, Anders; Ulus, A Tulga; Karacagil, Sadettin

    2009-01-01

    In a model of aortic cross-clamping, we studied the use of a multiparameter sensor for measurement of cerebrospinal fluid (CSF) PO(2), PCO(2), and pH during and after aortic cross-clamping. The present study addressed the above-mentioned alterations and their relation according to time intervals. In 31 pigs, a sensor was introduced into the intrathecal space and epidural laser Doppler was used to measure spinal cord blood flow (SCF). By placing the aortic clamp at different levels, three different spinal cord ischemia groups were obtained (mild, moderate, and severe). CSF variables with SCF were studied for 25%, 50%, and 100% changes according to baseline level. In the clamping period, SCF decreased 71.5%, 40.0%, and 33.3% in groups 1, 2, and 3, respectively. CSF O(2) tension reached 0 in group 1, decreased 74.8% in group 2, and was 12.7% in group 3. CSF CO(2) tension increased 247.2% and 202.0% in groups 1 and 2, respectively, but slightly increased in group 3. The maximum reaction time of CSF O(2) tension was about 16.7-26.9min, although this range was 34.5-49.8min in CSF CO(2) tension. We recognized that O(2) tension reacts faster than PCO(2) and pH. It is possible for O(2) tension to be used faster than produced CO(2) in the ischemic medium, although it is known that the diffusion rate of CO(2) is much higher. Spinal cord O(2) tension monitoring is an important method to detect ischemic changes.

  10. Final Project Report: Development of Micro-Structural Mitigation Strategies for PEM Fuel Cells: Morphological Simulations and Experimental Approaches

    Energy Technology Data Exchange (ETDEWEB)

    Wessel, Silvia [Ballard Materials Products; Harvey, David [Ballard Materials Products

    2013-06-28

    The durability of PEM fuel cells is a primary requirement for large scale commercialization of these power systems in transportation and stationary market applications that target operational lifetimes of 5,000 hours and 40,000 hours by 2015, respectively. Key degradation modes contributing to fuel cell lifetime limitations have been largely associated with the platinum-based cathode catalyst layer. Furthermore, as fuel cells are driven to low cost materials and lower catalyst loadings in order to meet the cost targets for commercialization, the catalyst durability has become even more important. While over the past few years significant progress has been made in identifying the underlying causes of fuel cell degradation and key parameters that greatly influence the degradation rates, many gaps with respect to knowledge of the driving mechanisms still exist; in particular, the acceleration of the mechanisms due to different structural compositions and under different fuel cell conditions remains an area not well understood. The focus of this project was to address catalyst durability by using a dual path approach that coupled an extensive range of experimental analysis and testing with a multi-scale modeling approach. With this, the major technical areas/issues of catalyst and catalyst layer performance and durability that were addressed are: 1. Catalyst and catalyst layer degradation mechanisms (Pt dissolution, agglomeration, Pt loss, e.g. Pt in the membrane, carbon oxidation and/or corrosion). a. Driving force for the different degradation mechanisms. b. Relationships between MEA performance, catalyst and catalyst layer degradation and operational conditions, catalyst layer composition, and structure. 2. Materials properties a. Changes in catalyst, catalyst layer, and MEA materials properties due to degradation. 3. Catalyst performance a. Relationships between catalyst structural changes and performance. b. Stability of the three-phase boundary and its effect on

  11. The emotional toll of hell: cross-national and experimental evidence for the negative well-being effects of hell beliefs.

    Science.gov (United States)

    Shariff, Azim F; Aknin, Lara B

    2014-01-01

    Though beliefs in Heaven and Hell are related, they are associated with different personality characteristics and social phenomena. Here we present three studies measuring Heaven and Hell beliefs' associations with and impact on subjective well-being. We find that a belief in Heaven is consistently associated with greater happiness and life satisfaction while a belief in Hell is associated with lower happiness and life satisfaction at the national (Study 1) and individual (Study 2) level. An experimental priming study (Study 3) suggests that these differences are mainly driven by the negative emotional impact of Hell beliefs. Possible cultural evolutionary explanations for the persistence of such a distressing religious concept are discussed.

  12. Prevalence and risk factors for self-reported non-communicable diseases among older Ugandans: a cross-sectional study

    Directory of Open Access Journals (Sweden)

    Stephen Ojiambo Wandera

    2015-07-01

    Full Text Available Background: There is limited evidence about the prevalence and risk factors for non-communicable diseases (NCDs among older Ugandans. Therefore, this article is aimed at investigating the prevalence of self-reported NCDs and their associated risk factors using a nationally representative sample. Design: We conducted a secondary analysis of the 2010 Uganda National Household Survey (UNHS using a weighted sample of 2,382 older people. Frequency distributions for descriptive statistics and Pearson chi-square tests to identify the association between self-reported NCDs and selected explanatory variables were done. Finally, multivariable complementary log–log regressions to estimate the risk factors for self-reported NCDs among older people in Uganda were done. Results: About 2 in 10 (23% older persons reported at least one NCD [including hypertension (16%, diabetes (3%, and heart disease (9%]. Among all older people, reporting NCDs was higher among those aged 60–69 and 70–79; Muslims; and Pentecostals and Seventh Day Adventists (SDAs. In addition, the likelihood of reporting NCDs was higher among older persons who depended on remittances and earned wages; owned a bicycle; were sick in the last 30 days; were disabled; and were women. Conversely, the odds of reporting NCDs were lower for those who were relatives of household heads and were poor. Conclusions: In Uganda, self-reported NCDs were associated with advanced age, being a woman, having a disability, ill health in the past 30 days, being rich, depended on remittances and earning wages, being Muslim, Pentecostal and SDAs, and household headship. The Ministry of Health should prevent and manage NCDs by creating awareness in the public and improving the supply of essential drugs for these health conditions. Finally, there is a need for specialised surveillance studies of older people to monitor the trends and patterns of NCDs over time.

  13. Primary care physicians' reported use of pre-screening discussions for prostate cancer screening: a cross-sectional survey

    Directory of Open Access Journals (Sweden)

    Cooper Crystale P

    2009-03-01

    Full Text Available Abstract Background Professional medical organizations recommend individualized patient decision making about prostate cancer screening. Little is known about primary care physicians' use of pre-screening discussions to promote informed decision making for prostate cancer screening. The aim of this study is to explore physicians' use of pre-screening discussions and reasons why physicians would or would not try to persuade patients to be screened if they initially refuse testing. Methods Primary care physicians completed a self-administered survey about prostate cancer screening practices for informed decision making. Results Sixty-six physicians (75.9% completed the survey, and 63 were used in the analysis. Thirteen physicians (20.6% reported not using prescreening discussions, 45 (71.4% reported the use of prescreening discussions, and 3 (4.8% reported neither ordering the PSA test nor discussing it with patients. Sixty-nine percent of physicians who reported not having discussions indicated they were more likely to screen African American patients for prostate cancer, compared to 50% of physicians who reported the use of discussions (Chi-square(1 = 1.62, p = .20. Similarly, 91% of physicians who reported not having discussions indicated they are more likely to screen patients with a family history of prostate cancer, compared to 46% of those who reported the use of discussion (Chi-square(1 = 13.27, p Conclusion Although guidelines recommend discussing the risks and benefits of prostate cancer screening, physicians report varying practice styles. Future research needs to consider the nature of discussions and the degree to which informed decision making is being achieved in clinical practice.

  14. Pipeline corridors through wetlands -- Impacts on plant communities: Little Timber Creek Crossing, Gloucester County, New Jersey. Topical report, August 1991--January 1993

    Energy Technology Data Exchange (ETDEWEB)

    Shem, L.M.; Zimmerman, R.E.; Alsum, S.K. [Argonne National Lab., IL (United States). Center for Environmental Restoration Systems; Van Dyke, G.D. [Argonne National Lab., IL (United States). Center for Environmental Restoration Systems]|[Trinity Christian Coll., Palos Heights, IL (United States). Dept. of Biology

    1994-12-01

    The goal of the Gas Research Institute Wetland Corridors Program is to document impacts of existing pipelines on the wetlands they traverse. To accomplish this goal, 12 existing wetland crossings were surveyed. These sites varied in elapsed time since pipeline construction, wetland type, pipeline installation techniques, and right-of-way (ROW) management practices. This report presents results of a survey conducted over the period of August 5--7, 1991, at the Little Timber Creek crossing in Gloucester County, New Jersey, where three pipelines, constructed in 1950, 1960, and 1990, cross the creek and associated wetlands. The old side of the ROW, created by the installation of the 1960 pipeline, was designed to contain a raised peat bed over the 1950 pipeline and an open-water ditch over the 1960 pipeline. The new portion of the ROW, created by installation of the 1990 pipeline, has an open-water ditch over the pipeline (resulting from settling of the backfill) and a raised peat bed (resulting from rebound of compacted peat). Both the old and new ROWs contain dense stands of herbs; the vegetation on the old ROW was more similar to that in the adjacent natural area than was vegetation in the new ROW. The ROW increased species and habitat diversity in the wetlands. It may contribute to the spread of purple loosestrife and affect species sensitive to habitat fragmentation.

  15. Status report on multigroup cross section generation code development for high-fidelity deterministic neutronics simulation system.

    Energy Technology Data Exchange (ETDEWEB)

    Yang, W. S.; Lee, C. H. (Nuclear Engineering Division)

    2008-05-16

    Under the fast reactor simulation program launched in April 2007, development of an advanced multigroup cross section generation code was initiated in July 2007, in conjunction with the development of the high-fidelity deterministic neutron transport code UNIC. The general objectives are to simplify the existing multi-step schemes and to improve the resolved and unresolved resonance treatments. Based on the review results of current methods and the fact that they have been applied successfully to fast critical experiment analyses and fast reactor designs for last three decades, the methodologies of the ETOE-2/MC{sup 2}-2/SDX code system were selected as the starting set of methodologies for multigroup cross section generation for fast reactor analysis. As the first step for coupling with the UNIC code and use in a parallel computing environment, the MC{sup 2}-2 code was updated by modernizing the memory structure and replacing old data management package subroutines and functions with FORTRAN 90 based routines. Various modifications were also made in the ETOE-2 and MC{sup 2}-2 codes to process the ENDF/B-VII.0 data properly. Using the updated ETOE-2/MC{sup 2}-2 code system, the ENDF/B-VII.0 data was successfully processed for major heavy and intermediate nuclides employed in sodium-cooled fast reactors. Initial verification tests of the MC{sup 2}-2 libraries generated from ENDF/B-VII.0 data were performed by inter-comparison of twenty-one group infinite dilute total cross sections obtained from MC{sup 2}-2, VIM, and NJOY. For almost all nuclides considered, MC{sup 2}-2 cross sections agreed very well with those from VIM and NJOY. Preliminary validation tests of the ENDF/B-VII.0 libraries of MC{sup 2}-2 were also performed using a set of sixteen fast critical benchmark problems. The deterministic results based on MC{sup 2}-2/TWODANT calculations were in good agreement with MCNP solutions within {approx}0.25% {Delta}{rho}, except a few small LANL fast assemblies

  16. Experimental study on the radar cross section of low-frequency terahertz standard target%低频太赫兹标准目标雷达散射截面的实验研究

    Institute of Scientific and Technical Information of China (English)

    杨洋; 姚建铨; 王力; 张镜水; 刘婧

    2015-01-01

    For study the characteristics of terahertz radar scattering cross section, by building a low-frequency terahertz radar test system, and with the help of standard target method, experiments and research work about terahertz radar scattering cross section of rough aluminum plate were carried out. The experimental results show that: In the small angle scattering, terahertz radar scattering cross section changes much obviously with the increase of the scattering angle; But when the scattering angle is more than 5° , terahertz radar scattering cross section varies with the scattering angle tends to be slow; And when the scattering angle is more than 12°, the detection signal strength attenuation cannot be measured. The phenomenon that microwave radar scattering cross section size changes with the angle of scattering while acuteness oscillation does not appear in the testing of terahertz radar scattering cross section. Comparison of the test results with the same size of microwave and laser radar cross section, it can be the concluded:In the vicinity of 0° , the magnitude of terahertz radar scattering cross section is two orders lower than the same size microwave radar scattering cross section, but is an order higher than the same size laser radar scattering cross section.%以研究太赫兹雷达散射截面的特性为目的,选用所搭建低频太赫兹雷达测试系统,并借助于标准目标法开展了有关太赫兹雷达粗糙铝盘散射截面的实验研究工作。实验结果表明:在小角度散射中太赫兹雷达散射截面随散射角的增大变化比较明显,在散射角超过5°后太赫兹雷达散射截面随散射角的变化趋向缓慢,但当散射角超过12°后探测信号的强度已衰减到无法测量,在太赫兹雷达散射截面的测试中没有出现微波雷达散射截面的大小随散射角的变化而剧烈振荡的现象;将测试结果与同尺寸微波、激光雷达散射截面的结果进行

  17. Voluntary medical male circumcision: a cross-sectional study comparing circumcision self-report and physical examination findings in Lesotho.

    Directory of Open Access Journals (Sweden)

    Anne Goldzier Thomas

    Full Text Available BACKGROUND: Overwhelming evidence, including three clinical trials, shows that male circumcision (MC reduces the risk of HIV infection among men. However, data from recent Lesotho Demographic and Health Surveys do not demonstrate MC to be protective against HIV. These contradictory findings could partially be due to inaccurate self-reported MC status used to estimate MC prevalence. This study describes MC characteristics among men applying for Lesotho Defence Force recruitment and seeks to assess MC self-reported accuracy through comparison with physical-examination-based data. METHODS AND FINDINGS: During Lesotho Defence Force applicant screening in 2009, 241 (77% of 312 men, aged 18-25 y, consented to a self-administered demographic and MC characteristic survey and physician-performed genital examination. The extent of foreskin removal was graded on a scale of 1 (no evidence of MC to 4 (complete MC. MC was self-reported by 27% (n = 64/239 of participants. Of the 64 men self-reporting being circumcised, physical exam showed that 23% had no evidence of circumcision, 27% had partial circumcision, and 50% had complete circumcision. Of the MCs reportedly performed by a medical provider, 3% were Grade 1 and 73% were Grade 4. Of the MCs reportedly performed by traditional circumcisers, 41% were Grade 1, while 28% were Grade 4. Among participants self-reporting being circumcised, the odds of MC status misclassification were seven times higher among those reportedly circumcised by initiation school personnel (odds ratio = 7.22; 95% CI = 2.29-22.75. CONCLUSIONS: Approximately 27% of participants self-reported being circumcised. However, only 50% of these men had complete MC as determined by a physical exam. Given this low MC self-report accuracy, countries scaling up voluntary medical MC (VMMC should obtain physical-exam-based MC data to guide service delivery and cost estimates. HIV prevention messages promoting VMMC should provide

  18. Self-Reported Hindering Health Complaints of Community-Dwelling Older Persons: A Cross-Sectional Study.

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    Sophie C E van Blijswijk

    Full Text Available Proactive care for community-dwelling older persons targeting self-reported hindering health complaints might prevent a decline in function. We investigated the spectrum of self-reported hindering complaints of community-dwelling older persons, the association with functional outcomes, and help-seeking behavior for these complaints.Within the ISCOPE trial, participants (aged ≥75 years received the ISCOPE screening questionnaire, including the open-ended question "At the moment, which health complaints limit you the most in your day-to-day life?". After coding the answers with the ICPC-1-NL, we examined the prevalence and the association between the number and type of complaints and functional outcomes (Groningen Activities Restriction Scale, quality of life measured on Cantril's Ladder, Mini-Mental State Examination, Geriatric Depression Scale-15, and De Jong Gierveld Loneliness Scale. Electronic patient registers were searched for the most reported complaints.7285 participants (median age: 81.0 years [IQR 77.8-85.3], 38.6% males reported 13,524 hindering complaints (median 1, range 0-18; 32.7% reported no complaints. Participants mostly reported problems with walking/standing (22.1%, pain (20.8% or weakness/tiredness (8.5%. These complaints were mentioned in the electronic patient registers in 28.3%, 91.3% and 55.5%, respectively. Higher numbers of hindering complaints were related to poorer scores on the number of domains with problems, Cantril's Ladder for quality of life, Groningen Activities Restriction Scale, Geriatric Depression Scale, and De Jong Gierveld Loneliness Scale. Self-reported weakness, problems with walking/standing, visual limitations, cognitive problems, dyspnea and back complaints were associated with poorer scores on the number of domains with problems, Groningen Activities Restriction Scale, MMSE or Geriatric Depression Scale.One third of the participants reported no hindering complaints. Problems with walking

  19. Experimental investigation and exergy analysis of the performance of a counter flow Ranque-Hilsch vortex tube with regard to nozzle cross-section areas

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    Dincer, K.; Avci, A.; Berber, A. [Dept. of Mechanical Eng., Fac. of Eng. and Architecture, Selcuk Univ., Selcuklu, Konya (Turkey); Baskaya, S. [Dept. of Mechanical Eng., Fac. of Eng. and Architecture, Gazi Univ., Maltepe, Ankara (Turkey)

    2010-08-15

    Exergy analysis and performance of a Ranque-Hilsch Vortex Tube (RHVT) with various nozzle cross-section areas (NCSA = 3 x 3, 4 x 4, 5 x 5 mm{sup 2}) were determined under inlet pressures (P{sub i}) of 260, 300 kPa (absolute) pressurized air. The maximum difference in the temperatures of hot output and cold output streams was obtained for NCSA = 3 x 3 mm{sup 2}. The total inlet exergy (sum E{sub i}), total outlet exergy (sum E{sub O}), total lost exergy (sum E{sub Lost}) and exergy efficiency ({eta}, %) were calculated. It was determined that the exergy efficiency of the system, varied between 1% and 39%, and the highest exergy efficiency was obtained for NCSA = 3 x 3 mm{sup 2}. The exergy efficiency strongly depends on the level of P{sub i}, {xi} and v{sub cold}. Variation of the exergy efficiency decreased with decreasing P{sub i}, {xi}, v{sub cold} and the highest and lowest exergy efficiencies were found when the values of P{sub i}, {xi}, v{sub cold} reached maximum and minimum levels, respectively. (author)

  20. Influence of erythropoietin on cognitive performance during experimental hypoglycemia in patients with type 1 diabetes mellitus: a randomized cross-over trial.

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    Peter Lommer Kristensen

    Full Text Available INTRODUCTION: The incidence of severe hypoglycemia in type 1 diabetes has not decreased over the past decades. New treatment modalities minimizing the risk of hypoglycemic episodes and attenuating hypoglycemic cognitive dysfunction are needed. We studied if treatment with the neuroprotective hormone erythropoietin (EPO enhances cognitive function during hypoglycemia. MATERIALS AND METHODS: Eleven patients with type 1 diabetes, hypoglycemia unawareness and recurrent severe hypoglycemia completed the study. In a double-blind, randomized, balanced, cross-over study using clamped hypoglycemia they were treated with 40,000 IU of EPO or placebo administered intravenously six days before the two experiments. Cognitive function (primary endpoint, hypoglycemic symptoms, and counter-regulatory hormonal response were recorded. RESULTS: Compared with placebo, EPO treatment was associated with a significant reduction in errors in the most complex reaction time task (-4.7 (-8.1 to -1.3, p = 0.01 and a less reaction time prolongation (-66 (-117 to -16 msec, p = 0.02. EPO treatment did not change performance in other measures of cognition. Hypoglycemic symptoms, EEG-changes, and counter-regulatory hormone concentrations did not differ between EPO and placebo treatment. CONCLUSION: In patients with type 1 diabetes and hypoglycemia unawareness, treatment with EPO is associated with a beneficial effect on cognitive function in a complex reaction time task assessing sustained attention/working memory. Hypoglycemic symptoms and hormonal responses were not changed by EPO treatment. TRIAL REGISTRATION: ClinicalTrials.gov NCT00615368.