WorldWideScience

Sample records for allene

  1. Woody Allen kimpus arhitektuuriga

    Index Scriptorium Estoniae

    2000-01-01

    Woody Allen protesteerib oma uue lühifilmiga kavatsuse vastu ehitada 16-korruseline ärihoone tema New Yorgi kodu lähedale. W. Allen hindab New Yorgi ajaloolisi rajoone, mida näitab ka oma filmides

  2. EPICS: Allen-Bradley hardware reference manual

    International Nuclear Information System (INIS)

    This manual covers the following hardware: Allen-Bradley 6008 -- SV VMEbus I/O scanner; Allen-Bradley universal I/O chassis 1771-A1B, -A2B, -A3B, and -A4B; Allen-Bradley power supply module 1771-P4S; Allen-Bradley 1771-ASB remote I/O adapter module; Allen-Bradley 1771-IFE analog input module; Allen-Bradley 1771-OFE analog output module; Allen-Bradley 1771-IG(D) TTL input module; Allen-Bradley 1771-OG(d) TTL output; Allen-Bradley 1771-IQ DC selectable input module; Allen-Bradley 1771-OW contact output module; Allen-Bradley 1771-IBD DC (10--30V) input module; Allen-Bradley 1771-OBD DC (10--60V) output module; Allen-Bradley 1771-IXE thermocouple/millivolt input module; and the Allen-Bradley 2705 RediPANEL push button module

  3. Synthesis of furan from allenic sulfide derivatives

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    In this paper, we report the synthesis of furan derivatives from allenic sulfides. By the reaction with NaH, β-Hydroxyl allenic sulfides were found to generate furan products in excellent yields with the removal of phenylthio group. β-Aldehyde allenic sulfides were found to give similar furan products with one more substituent when treated with additional nucleophilic reagents. β-ketone allenic sulfides can also cyclize to give furan derivatives with the promotion of P2O5.

  4. Synthesis of furan from allenic sulfide derivatives

    Institute of Scientific and Technical Information of China (English)

    PENG LingLing; ZHANG Xiu; MA Jie; ZHONG ZhenZhen; ZHANG Zhe; ZHANG Yan; WANG JianBo

    2009-01-01

    In this paper, we report the synthesis of furan derivatives from allenic sulfides. By the reaction with NaH.,β-Hydroxyl allenic sulfides were found to generate furan products in excellent yields with the removal of phenylthio group.β-Aldehyde allenic sulfides were found to give similar furan products with one more substituent when treated with additional nucleophilic reagents. β-ketone allenic sulfides can also cyclize to give furan derivatives with the promotion of P2O5.

  5. Hurricane Allen and Island Obstacles.

    Science.gov (United States)

    Hawkins, H. F.

    1983-05-01

    The first significant filling of Hurricane Allen coincided with its encroachment on Haiti, Jamaica and eastern Cuba. It is suggested that the filling was due to the interruption offered to its circulation by the mountainous terrain. The accompanying secondary wind maximum may have contributed to, or have been coincidental with, the weakening observed.

  6. The Van Allen Probes mission

    CERN Document Server

    Burch, James

    2014-01-01

    This collection of articles provides broad and detailed information about NASA’s Van Allen Probes (formerly known as the Radiation Belt Storm Probes) twin-spacecraft Earth-orbiting mission. The mission has the objective of achieving predictive understanding of the dynamic, intense, energetic, dangerous, and presently unpredictable belts of energetic particles that are magnetically trapped in Earth’s space environment above the atmosphere. It documents the science of the radiation belts and the societal benefits of achieving predictive understanding. Detailed information is provided about the Van Allen Probes mission design, the spacecraft, the science investigations, and the onboard instrumentation that must all work together to make unprecedented measurements within a most unforgiving environment, the core of Earth’s most intense radiation regions.
 This volume is aimed at graduate students and researchers active in space science, solar-terrestrial interactions and studies of the up...

  7. Rejuvenating Allen's Arc with the Geometric Mean.

    Science.gov (United States)

    Phillips, William A.

    1994-01-01

    Contends that, despite ongoing criticism, Allen's arc elasticity formula remains entrenched in the microeconomics principles curriculum. Reviews the evolution and continuing scrutiny of the formula. Argues that the use of the geometric mean offers pedagogical advantages over the traditional arithmetic mean approach. (CFR)

  8. EPICS: Allen Bradley driver and device support

    International Nuclear Information System (INIS)

    EPICS provides support for the Allen Bradley VMEbus I/O Scanner. Support consists of a driver and device support. The driver provides the following features: Support for 8, 16, and 32 bit digital I/O modules. Inputs can be scanned such that the caller is notified whenever one or more bits of an input or output card change. Arbitrary Block Transfers (Input and Output) with the caller being notified when the block transfer completes or times out. Software scanning of analog output and input modules. Device support is provided for the following record types: ai, ao, bi, bo, mbbi, mbbo, mbbiDirect, and mbboDirect. This document describes the version of the Allen Bradley support that first appeared in EPICS release 3.12.beta11. The adapter and card status commands were not available until 3.12.beta12. The reader should also consult the manuals EPICS: Allen Bradley - Hardware Reference Manual, Greg Nawrocki, Allen Bradley manuals: VME scanner, I/O concepts, and various I/O modules

  9. Woody Allen, serial schlemiel ?

    Directory of Open Access Journals (Sweden)

    Frédérique Brisset

    2011-04-01

    Full Text Available Woody Allen a développé au fil des années une persona cinématographique de schlemiel new-yorkais aisément reconnaissable par le spectateur. Elle marque nombre de ses films, qu’il y apparaisse en tant qu’acteur ou y dirige des substituts comédiens comme déclinaisons de lui-même. Si cette figure prototypique est le fondement de la sérialité dans sa filmographie, il est des traits stylistiques qui en portent trace tout au long de son œuvre : la récurrence annuelle de ses réalisations, la signature formelle symbolisée par ses génériques à la typographie singulière, le rythme de ses dialogues ponctués d’interjections et l’usage de l’autocitation sont autant de procédés qui marquent son cinéma d’un sceau très personnel. Ils fonctionnent comme des clins d’œil au spectateur qui reçoit dès lors LE Woody Allen millésimé comme une invitation à retrouver son microcosme. Ainsi la sérialité se pose comme à la fois initiale et conséquentielle de son système filmique, processus de création unique dans le cinéma américain.Woody Allen has long constructed a cinematographic persona of schlemiel New- Yorker that the audience can easily identify. It impacts most of his films, whether he stars in them or directs “substitute” actors to impersonate his character. If this prototypical figure is the basis of seriality in his cinematography, serial stylistic features can also be found all along his career: the annual recurrence of his productions, the formal signature symbolised by the typography of his singular credit titles, his rhythmical interjection-punctuated dialogues and the use of self-quotation imprint a very personal seal upon his movies. They all work as a recognition signals for the audience who thus receive THE Woody Allen vintage as an invitation to re-enter his microcosm. Seriality is then both initial and consequential to his cinematographic system, a unique creative process in American film history.

  10. 33 CFR 80.1440 - Port Allen, Kauai, HI.

    Science.gov (United States)

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Port Allen, Kauai, HI. 80.1440 Section 80.1440 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY INTERNATIONAL NAVIGATION RULES COLREGS DEMARCATION LINES Pacific Islands § 80.1440 Port Allen, Kauai, HI. A line drawn...

  11. Gold-catalyzed intermolecular hydroamination of allenes with sulfonamides

    OpenAIRE

    Chen Zhang; Shao-Qiao Zhang; Hua-Jun Cai; Dong-Mei Cui

    2013-01-01

    A co-catalyst of (PPh3)AuCl/AgOTf for the intermolecular hydroamination of allenes with sulfonamides is shown. The reaction proceeded smoothly under mild conditions for differently substituted allenes giving N-allylic sulfonamides in good yields with high regioselectivity and E-selectivity.

  12. Phase-transfer-catalysed asymmetric synthesis of tetrasubstituted allenes

    Science.gov (United States)

    Hashimoto, Takuya; Sakata, Kazuki; Tamakuni, Fumiko; Dutton, Mark J.; Maruoka, Keiji

    2013-03-01

    Allenes are molecules based on three carbons connected by two cumulated carbon-carbon double bonds. Given their axially chiral nature and unique reactivity, substituted allenes have a variety of applications in organic chemistry as key synthetic intermediates and directly as part of biologically active compounds. Although the demands for these motivated many endeavours to make axially chiral, substituted allenes by exercising asymmetric catalysis, the catalytic asymmetric synthesis of fully substituted ones (tetrasubstituted allenes) remained largely an unsolved issue. The fundamental obstacle to solving this conundrum is the lack of a simple synthetic transformation that provides tetrasubstituted allenes in the action of catalysis. We report herein a strategy to overcome this issue by the use of a phase-transfer-catalysed asymmetric functionalization of 1-alkylallene-1,3-dicarboxylates with N-arylsulfonyl imines and benzylic and allylic bromides.

  13. The Allen Telescope Array Commensal Observing System

    CERN Document Server

    Williams, Peter K G

    2012-01-01

    This memo describes the system used to conduct commensal correlator and beamformer observations at the Allen Telescope Array (ATA). This system was deployed for ~2 years until the ATA hibernation in 2011 and was responsible for collecting >5 TB of data during thousands of hours of observations. The general system design is presented and the implementation is discussed in detail. I emphasize the rationale for various design decisions and attempt to document a few aspects of ATA operations that might not be obvious to non-insiders. I close with some recommendations from my experience developing the software infrastructure and managing the correlator observations. These include: reuse existing systems; solve, don't avoid, tensions between projects, and share infrastructure; plan to make standalone observations to complement the commensal ones; and be considerate of observatory staff when deploying new and unusual observing modes. The structure of the software codebase is documented.

  14. James Van Allen The First Eight Billion Miles

    CERN Document Server

    Foerstner, Abigail

    2009-01-01

    Astrophysicist and space pioneer James Van Allen (1914-2006), for whom the Van Allen radiation belts were named, was among the principal scientific investigators for twenty-four space missions, including Explorer I in 1958, the first successful U.S. satellite; Mariner 2's 1962 flyby of Venus, the first successful mission to another planet; and the 1970's Pioneer 10 and Pioneer 11, missions that surveyed Jupiter and Saturn. Abigail Foerstner blends space science, drama, military agenda's, cold war politics, and the events of Van Allen's lengthy career to create the first biography of this highl

  15. A Study of Allen Production Function with Differential Geometry

    Directory of Open Access Journals (Sweden)

    Alin Cristian Ioan

    2015-02-01

    Full Text Available In this paper we shall made an analysis of Allen production function from the differential point of view. We shall obtain some interesting results about the nature of the points of the surface and the total curvature.

  16. Substituent effects on dynamics at conical intersections: Allene and methyl allenes

    International Nuclear Information System (INIS)

    We report a joint experimental and theoretical study on the ultrafast excited state dynamics of allene and a series of its methylated analogues (1,2-butadiene, 1,1-dimethylallene, and tetramethylallene) in order to elucidate the conical intersection mediated dynamics that give rise to ultrafast relaxation to the ground electronic state. We use femtosecond time-resolved photoelectron spectroscopy (TRPES) to probe the coupled electronic-vibrational dynamics following UV excitation at 200 nm (6.2 eV). Ab initio multiple spawning (AIMS) simulations are employed to determine the mechanistic details of two competing dynamical pathways to the ground electronic state. In all molecules, these pathways are found to involve as follows: (i) twisting about the central allenic C–C–C axis followed by pyramidalization at one of the terminal carbon atoms and (ii) bending of allene moiety. Importantly, the AIMS trajectory data were used for ab initio simulations of the TRPES, permitting direct comparison with experiment. For each molecule, the decay of the TRPES signal is characterized by short (30 fs, 52 fs, 23 fs) and long (1.8 ps, 3.5 ps, [306 fs, 18 ps]) time constants for 1,2-butadiene, 1,1-dimethylallene, and tetramethylallene, respectively. However, AIMS simulations show that these time constants are only loosely related to the evolution of electronic character and actually more closely correlate to large amplitude motions on the electronic excited state, modulating the instantaneous vertical ionization potentials. Furthermore, the fully substituted tetramethylallene is observed to undergo qualitatively different dynamics, as displacements involving the relatively massive methyl groups impede direct access to the conical intersections which give rise to the ultrafast relaxation dynamics observed in the other species. These results show that the branching between the “twisting” and “bending” pathways can be modified via the selective methylation of the terminal

  17. Substituent effects on dynamics at conical intersections: Allene and methyl allenes

    Energy Technology Data Exchange (ETDEWEB)

    Neville, Simon P. [Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5 (Canada); Wang, Yanmei [State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071 (China); Boguslavskiy, Andrey E.; Stolow, Albert, E-mail: albert.stolow@nrc-cnrc.gc.ca [Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5 (Canada); National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6 (Canada); Department of Physics, University of Ottawa, 150 Louis Pasteur, Ottawa ON K1N 6N5 (Canada); Schuurman, Michael S., E-mail: michael.schuurman@nrc-cnrc.gc.ca [Department of Chemistry, University of Ottawa, 10 Marie Curie, Ottawa, Ontario K1N 6N5 (Canada); National Research Council of Canada, 100 Sussex Drive, Ottawa, Ontario K1A 0R6 (Canada)

    2016-01-07

    We report a joint experimental and theoretical study on the ultrafast excited state dynamics of allene and a series of its methylated analogues (1,2-butadiene, 1,1-dimethylallene, and tetramethylallene) in order to elucidate the conical intersection mediated dynamics that give rise to ultrafast relaxation to the ground electronic state. We use femtosecond time-resolved photoelectron spectroscopy (TRPES) to probe the coupled electronic-vibrational dynamics following UV excitation at 200 nm (6.2 eV). Ab initio multiple spawning (AIMS) simulations are employed to determine the mechanistic details of two competing dynamical pathways to the ground electronic state. In all molecules, these pathways are found to involve as follows: (i) twisting about the central allenic C–C–C axis followed by pyramidalization at one of the terminal carbon atoms and (ii) bending of allene moiety. Importantly, the AIMS trajectory data were used for ab initio simulations of the TRPES, permitting direct comparison with experiment. For each molecule, the decay of the TRPES signal is characterized by short (30 fs, 52 fs, 23 fs) and long (1.8 ps, 3.5 ps, [306 fs, 18 ps]) time constants for 1,2-butadiene, 1,1-dimethylallene, and tetramethylallene, respectively. However, AIMS simulations show that these time constants are only loosely related to the evolution of electronic character and actually more closely correlate to large amplitude motions on the electronic excited state, modulating the instantaneous vertical ionization potentials. Furthermore, the fully substituted tetramethylallene is observed to undergo qualitatively different dynamics, as displacements involving the relatively massive methyl groups impede direct access to the conical intersections which give rise to the ultrafast relaxation dynamics observed in the other species. These results show that the branching between the “twisting” and “bending” pathways can be modified via the selective methylation of the terminal

  18. Ti-catalyzed straightforward synthesis of exocyclic allenes.

    Science.gov (United States)

    Muñoz-Bascón, Juan; Hernández-Cervantes, Carmen; Padial, Natalia M; Alvarez-Corral, Míriam; Rosales, Antonio; Rodríguez-García, Ignacio; Oltra, J Enrique

    2014-01-13

    Exocyclic allenes constitute useful building blocks in organic synthesis and have recently been identified as key intermediates in the synthesis of natural products. Here the first general method for the most straightforward synthesis of exocyclic allenes reported to date is presented. This method is based on the Barbier-type cyclization of propargyl halides catalyzed by titanium; a safe, abundant, and ecofriendly metal. The reaction proceeds under mild conditions compatible with different functional groups and provides good yields of five-, six-, and seven-membered carbocycles and nitrogen-containing heterocycles bearing an exocyclic allene group. Experimental evidence supporting the proposed reaction mechanism is also provided. Moreover, this procedure can be carried out in an enantioselective manner by using chiral titanocene(III) catalysts. The utility of this method has been proved in the synthesis of the natural alkaloid stemoamide. PMID:24339337

  19. Van Allen Probes Science Gateway: A Centralized Data Access Point

    Science.gov (United States)

    Romeo, G.; Barnes, R. J.; Ukhorskiy, A. Y.; Sotirelis, T.; Stephens, G. K.; Kessel, R.; Potter, M.

    2015-12-01

    The Van Allen Probes Science Gateway acts a centralized interface to the instrument Science Operation Centers (SOCs), provides mission planning tools, and hosts a number of science related activities such as the mission bibliography. Most importantly, the Gateway acts as the primary site for processing and delivering the Van Allen Probes Space Weather data to users. Over the past years, the web-site has been completely redesigned with the focus on easier navigation and improvements of the existing tools such as the orbit plotter, position calculator and magnetic footprint tool. In addition, a new data plotting facility has been added. Based on HTML5, which allows users to interactively plot Van Allen Probes science and space weather data. The user can tailor the tool to display exactly the plot they wish to see and then share this with other users via either a URL or by QR code. Various types of plots can be created, including, simple time series, data plotted as a function of orbital location, and time versus L-Shell, capability of visualizing data from both probes (A & B) on the same plot. In cooperation with all Van Allen Probes Instrument SOCs, the Science Gateway will soon be able to serve higher level data products (Level 3), and to visualize them via the above mentioned HTML5 interface. Users will also be able to create customized CDF files on the fly.

  20. The Evolving Space Weather System—Van Allen Probes Contribution

    Science.gov (United States)

    Zanetti, L. J.; Mauk, B. H.; Fox, N. J.; Barnes, R. J.; Weiss, M.; Sotirelis, T. S.; Raouafi, N.-E.; Kessel, R. L.; Becker, H. N.

    2014-10-01

    The overarching goal and purpose of the study of space weather is clear—to understand and address the issues caused by solar disturbances on humans and technological systems. Space weather has evolved in the past few decades from a collection of concerned agencies and researchers to a critical function of the National Weather Service of NOAA. The general effects have also evolved from the well-known telegraph disruptions of the mid-1800s to modern day disturbances of the electric power grid, communications and navigation, human spaceflight and spacecraft systems. The last two items in this list, and specifically the effects of penetrating radiation, were the impetus for the space weather broadcast implemented on NASA's Van Allen Probes' twin pair of satellites, launched in August of 2012 and orbiting directly through Earth's severe radiation belts. The Van Allen Probes mission, formerly the Radiation Belt Storm Probes (RBSP), was renamed soon after launch to honor the discoverer of Earth's radiation belts at the beginning of the space age, the late James Van Allen (the spacecraft themselves are still referred to as RBSP-A and RBSP-B). The Van Allen Probes are one part of NASA's Living With a Star program formulated to advance the scientific understanding of the connection between solar disturbances, the resulting heliospheric conditions, and their effects on the geospace and Earth environment.

  1. Stark absorption spectroscopy of peridinin and allene-modified analogues

    Energy Technology Data Exchange (ETDEWEB)

    Kusumoto, Toshiyuki; Horibe, Tomoko [Department of Physics and CREST-JST, Graduated School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585 (Japan); Kajikawa, Takayuki; Hasegawa, Shinji [Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda, Hyogo 669-1337 (Japan); Iwashita, Takashi [Suntory Institute for Bioorganic Research, Wakayamadai 1-1-1, Shimamoto, Mishimagunn, Osaka 618-8503 (Japan); Cogdell, Richard J. [Glasgow Biomedical Research Centre, University of Glasgow, 120 University Place, Glasgow G12 8QQ, Scotland (United Kingdom); Birge, Robert R.; Frank, Harry A. [Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, CT 06269-3060 (United States); Katsumura, Shigeo [Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda, Hyogo 669-1337 (Japan); Hashimoto, Hideki, E-mail: hassy@sci.osaka-cu.ac.jp [Department of Physics and CREST-JST, Graduated School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585 (Japan)

    2010-07-19

    Stark absorption spectra of peridinin (Per) and five allene-modified analogues and their angular dependence as a function of an externally applied electric field were measured in methyl methacrylate polymer at 77 K. In all cases, the energetically lowest absorption band has a significant change of static dipole-moment upon photoexcitation ({Delta}{mu}). In particular, Per has the largest value of |{Delta}{mu}|. The angles between {Delta}{mu} and the transition dipole-moment of all the analogues were determined. It is suggested that the allene group in Per plays a key role as the electron donor in the charge transfer process following photoexcitation. The results of MNDO-PSDCI calculations support this idea.

  2. Performing Allen's test in immobile hand: The Esmarch bandage method

    Directory of Open Access Journals (Sweden)

    Nebil Yesiloglu

    2015-12-01

    Full Text Available In this study, an alternative method of assessing hand vascular flow using a modification of Allen's test is presented. This technique may be helpful for patients who have immobile hands due to severe trauma, patients scheduled for free tissue transfer reconstruction, patients under general anesthesia in intensive care units that require serial arterial blood gas analyses, and emergency coronary by-pass candidates who decided to receive radial arterial grafts. [Hand Microsurg 2015; 4(3.000: 83-85

  3. Van Allen Probes Science Gateway and Space Weather Data Processing

    Science.gov (United States)

    Romeo, G.; Barnes, R. J.; Weiss, M.; Fox, N. J.; Mauk, B.; Potter, M.; Kessel, R.

    2014-12-01

    The Van Allen Probes Science Gateway acts as a centralized interface to the instrument Science Operation Centers (SOCs), provides mission planning tools, and hosts a number of science related activities such as the mission bibliography. Most importantly, the Gateway acts as the primary site for processing and delivering the VAP Space Weather data to users. Over the past year, the web-site has been completely redesigned with the focus on easier navigation and improvements of the existing tools such as the orbit plotter, position calculator and magnetic footprint tool. In addition, a new data plotting facility has been added. Based on HTML5, which allows users to interactively plot Van Allen Probes summary and space weather data. The user can tailor the tool to display exactly the plot they wish to see and then share this with other users via either a URL or by QR code. Various types of plots can be created, including simple time series, data plotted as a function of orbital location, and time versus L-Shell. We discuss the new Van Allen Probes Science Gateway and the Space Weather Data Pipeline.

  4. The Allen Telescope Array Search for Electrostatic Discharges on Mars

    OpenAIRE

    Anderson, Marin M.; Siemion, Andrew P. V.; Barott, William C.; Bower, Geoffrey C.; Delory, Gregory T.; de Pater, Imke; Werthimer, Dan

    2011-01-01

    The Allen Telescope Array was used to monitor Mars between 9 March and 2 June 2010, over a total of approximately 30 hours, for radio emission indicative of electrostatic discharge. The search was motivated by the report from Ruf et al. (2009) of the detection of non-thermal microwave radiation from Mars characterized by peaks in the power spectrum of the kurtosis, or kurtstrum, at 10 Hz, coinciding with a large dust storm event on 8 June 2006. For these observations, we developed a wideband ...

  5. Hovering and forward flight energetics in Anna's and Allen's hummingbirds.

    Science.gov (United States)

    Clark, Christopher James; Dudley, Robert

    2010-01-01

    Aerodynamic theory predicts that the mechanical costs of flight are lowest at intermediate flight speeds; metabolic costs of flight should trend similarly if muscle efficiency is constant. We measured metabolic rates for nine Anna's hummingbirds (Calypte anna) and two male Allen's hummingbirds (Selasphorus sasin) feeding during flight from a free-standing mask over a range of airspeeds. Ten of 11 birds exhibited higher metabolic costs during hovering than during flight at intermediate airspeeds, whereas one individual exhibited comparable costs at hovering and during forward flight up to speeds of approximately 7 m s(-1). Flight costs of all hummingbirds increased at higher airspeeds. Relative to Anna's hummingbirds, Allen's hummingbirds exhibited deeper minima in the power curve, possibly due to higher wing loadings and greater associated costs of induced drag. Although feeding at a mask in an airstream may reduce body drag and, thus, the contributions of parasite power to overall metabolic expenditure, these results suggest that hummingbird power curves are characterized by energetic minima at intermediate speeds relative to hovering costs. PMID:20455711

  6. Geomagnetic Storms and EMIC waves: Van Allen Probe observations

    Science.gov (United States)

    Wang, Dedong; Yuan, Zhigang; Yu, Xiongdong; Huang, Shiyong; Deng, Xiaohua; Zhou, Meng; Li, Haimeng

    2016-04-01

    Electromagnetic Ion Cyclotron (EMIC) waves are believed to play a crucial role in the dynamics of ring current ions and radiation belt electrons, especially during geomagnetic storms. However, there is little consensus on which phase of the storm is more favorable for the generation of EMIC waves. Utilizing the data from magnetometer instrument of EMFISIS suite on board Van Allen Probe A, the occurrences of EMIC waves during geomagnetic storms are investigated in this paper. 76 storms were identified during the period under research, from 8 September 2012 to 30 April 2014, when the apogee of Van Allen Probe A covered all the MLT sectors. 50 of the 76 storms observed 124 EMIC wave events, of which 80 are found in the recovery phase, more than those observed in the main phase. Evolution of the distribution characteristics of EMIC waves respect to L and MLT in different geomagnetic phases is investigated, which is found to be consistent with that of the plasmasphere. These results are different from those derived by the observations of the CRRES satellite. The different results may result from the different orbit coverage of the two different satellite missions or from the different activity level of the magnetosphere during the different periods. Few EMIC waves in the dayside sector during the pre-onset periods are observed. It is implied that, to the generation of EMIC waves, the effect of solar wind dynamic pressure in the inner magnetosphere is not so significant as that in the outer magnetosphere.

  7. Laser speckle contrast analysis for quantifying the Allen test: A feasibility study

    NARCIS (Netherlands)

    Sandker, S.C.; Hondebrink, E.; Grandjean, J.G.; Steenbergen, W.

    2014-01-01

    Background and Objective The radial artery has become a routinely used conduit for coronary artery bypass graft surgery (CABG). Prior to surgery the Allen test is performed to test the patency of the ulnar artery. A positive Allen test, reperfusion >5 seconds, suggests an insufficient perfusion of t

  8. Q & A with Ed Tech Leaders: Interview with Michael W. Allen

    Science.gov (United States)

    Shaughnessy, Michael F.

    2014-01-01

    Michael W. Allen, the Chairman and CEO of Allen Interactions, is an architect of interactive multimedia learning and is recognized for his many insights, inventions, and presentations. With over 50 years of experience in e-learning, both in academic and corporate settings, he is known for his role in creating Authorware and overseeing the work of…

  9. (Hetero)aromatics from dienynes, enediynes and enyne-allenes.

    Science.gov (United States)

    Raviola, Carlotta; Protti, Stefano; Ravelli, Davide; Fagnoni, Maurizio

    2016-08-01

    The construction of aromatic rings has become a key objective for organic chemists. While several strategies have been developed for the functionalization of pre-formed aromatic rings, the direct construction of an aromatic core starting from polyunsaturated systems is yet a less explored field. The potential of such reactions in the formation of aromatics increased at a regular pace in the last few years. Nowadays, there are reliable and well-established procedures to prepare polyenic derivatives, such as dienynes, enediynes, enyne-allenes and hetero-analogues. This has stimulated their use in the development of innovative cycloaromatizations. Different examples have recently emerged, suggesting large potential of this strategy in the preparation of (hetero)aromatics. Accordingly, this review highlights the recent advancements in this field and describes the different conditions exploited to trigger the process, including thermal and photochemical activation, as well as the use of transition metal catalysis and the addition of electrophiles/nucleophiles or radical species.

  10. Branching Out: Rhodium-Catalyzed Allylation with Alkynes and Allenes.

    Science.gov (United States)

    Koschker, Philipp; Breit, Bernhard

    2016-08-16

    We present a new and efficient strategy for the atom-economic transformation of both alkynes and allenes to allylic functionalized structures via a Rh-catalyzed isomerization/addition reaction which has been developed in our working group. Our methodology thus grants access to an important structural class valued in modern organic chemistry for both its versatility for further functionalization and the potential for asymmetric synthesis with the construction of a new stereogenic center. This new methodology, inspired by mechanistic investigations by Werner in the late 1980s and based on preliminary work by Yamamoto and Trost, offers an attractive alternative to other established methods for allylic functionalization such as allylic substitution or allylic oxidation. The main advantage of our methodology consists of the inherent atom economy in comparison to allylic oxidation or substitution, which both produce stoichiometric amounts of waste and, in case of the substitution reaction, require prefunctionalization of the starting material. Starting out with the discovery of a highly branched-selective coupling reaction of carboxylic acids with terminal alkynes using a Rh(I)/DPEphos complex as the catalyst system, over the past 5 years we were able to continuously expand upon this chemistry, introducing various (pro)nucleophiles for the selective C-O, C-S, C-N, and C-C functionalization of both alkynes and the double-bond isomeric allenes by choosing the appropriate rhodium/bidentate phosphine catalyst. Thus, valuable compounds such as branched allylic ethers, sulfones, amines, or γ,δ-unsaturated ketones were successfully synthesized in high yields and with a broad substrate scope. Beyond the branched selectivity inherent to rhodium, many of the presented methodologies display additional degrees of selectivity in regard to regio-, diastereo-, and enantioselective transformations, with one example even proceeding via a dynamic kinetic resolution. Many advances

  11. Prozaci asemel GTD ehk getting things done / David Allen ; interv. Endrik Randoja

    Index Scriptorium Estoniae

    Allen, David

    2007-01-01

    Konsultant ja koolitaja David Allen oma aja- ja enesejuhtimise meetodist GTD - getting things done. Vt. samas: Väikesed nipid, et tõhusam olla; Milles seisneb Alleni meetod; Kuidas ma oma ülesannet täitsin - logiraamat

  12. Miks meil on kogu aeg kiire? / David Allen ; interv. Endrik Randoja

    Index Scriptorium Estoniae

    Allen, David

    2006-01-01

    Produktiivsuse ekspert vastab küsimustele ettevõetud tegevuste tulemuslikumalt lõpule viimise kohta. Lisa: Aja paremaks kasutamiseks pakub David Allen lisaks veel kolm tõhusat ja lihtsasti rakendatavat põhimõtet

  13. The Trail Inventory of Private John Allen National Fish Hatchery [Cycle 1

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The purpose of this report is to create a baseline inventory of all non-motorized trails on Private John Allen National Fish Hatchery. Trails in this inventory are...

  14. Toward an integrated route to the vernonia allenes and related sesquiterpenoids

    Directory of Open Access Journals (Sweden)

    Da Xu

    2011-07-01

    Full Text Available The synthesis of a model endocyclic allene related to the vernonia allenes is described. Fragmentation of a suitable decalin derivative gave the simplified germacrane scaffold. Computational analysis of this and related substrates provides insight into the stereoelectronic requirements of C–C fragmentation. The overall strategy to access these and other sesquiterpenes and the key steps in the present sequence are also discussed.

  15. (Hetero)aromatics from dienynes, enediynes and enyne-allenes.

    Science.gov (United States)

    Raviola, Carlotta; Protti, Stefano; Ravelli, Davide; Fagnoni, Maurizio

    2016-08-01

    The construction of aromatic rings has become a key objective for organic chemists. While several strategies have been developed for the functionalization of pre-formed aromatic rings, the direct construction of an aromatic core starting from polyunsaturated systems is yet a less explored field. The potential of such reactions in the formation of aromatics increased at a regular pace in the last few years. Nowadays, there are reliable and well-established procedures to prepare polyenic derivatives, such as dienynes, enediynes, enyne-allenes and hetero-analogues. This has stimulated their use in the development of innovative cycloaromatizations. Different examples have recently emerged, suggesting large potential of this strategy in the preparation of (hetero)aromatics. Accordingly, this review highlights the recent advancements in this field and describes the different conditions exploited to trigger the process, including thermal and photochemical activation, as well as the use of transition metal catalysis and the addition of electrophiles/nucleophiles or radical species. PMID:27263976

  16. Customized Beam Forming at the Allen Telescope Array

    CERN Document Server

    Harp, G R

    2012-01-01

    One of the exciting prospects for large N arrays is the potential for custom beam forming when operating in phased array mode. Pattern nulls may be generated by properly weighting the signals from all antennas with only minor degradation of gain in the main beam. Here we explore the limits of beam shape manipulation using the parameters of the Allen Telescope Array. To generate antenna weights, we apply an iterative method that is particularly easy to understand yet is comparable to linearly-constrained methods. In particular, this method elucidates how narrow band nulls may be extended to wider bandwidth. In practical RFI mitigation, the gain in the synthetic beam is obviously affected by the number and bandwidth of nulls placed elsewhere. Here we show how to predict the impact of a set of nulls in terms of the area of sky covered and null bandwidth. Most critical for design of the ATA, we find that high-speed (~10 ms) amplitude control of each array element over the full range 0-1 is critically important to...

  17. THE ALLEN TELESCOPE ARRAY SEARCH FOR ELECTROSTATIC DISCHARGES ON MARS

    International Nuclear Information System (INIS)

    The Allen Telescope Array was used to monitor Mars between 2010 March 9 and June 2, over a total of approximately 30 hr, for radio emission indicative of electrostatic discharge. The search was motivated by the report from Ruf et al. of the detection of non-thermal microwave radiation from Mars characterized by peaks in the power spectrum of the kurtosis, or kurtstrum, at 10 Hz, coinciding with a large dust storm event on 2006 June 8. For these observations, we developed a wideband signal processor at the Center for Astronomy Signal Processing and Electronics Research. This 1024 channel spectrometer calculates the accumulated power and power-squared, from which the spectral kurtosis is calculated post-observation. Variations in the kurtosis are indicative of non-Gaussianity in the signal, which can be used to detect variable cosmic signals as well as radio frequency interference (RFI). During the three-month period of observations, dust activity occurred on Mars in the form of small-scale dust storms; however, no signals indicating lightning discharge were detected. Frequent signals in the kurtstrum that contain spectral peaks with an approximate 10 Hz fundamental were seen at both 3.2 and 8.0 GHz, but were the result of narrowband RFI with harmonics spread over a broad frequency range.

  18. The Allen Telescope Array Search for Electrostatic Discharges on Mars

    Science.gov (United States)

    Anderson, Marin M.; Siemion, Andrew P. V.; Barott, William C.; Bower, Geoffrey C.; Delory, Gregory T.; de Pater, Imke; Werthimer, Dan

    2012-01-01

    The Allen Telescope Array was used to monitor Mars between 2010 March 9 and June 2, over a total of approximately 30 hr, for radio emission indicative of electrostatic discharge. The search was motivated by the report from Ruf et al. of the detection of non-thermal microwave radiation from Mars characterized by peaks in the power spectrum of the kurtosis, or kurtstrum, at 10 Hz, coinciding with a large dust storm event on 2006 June 8. For these observations, we developed a wideband signal processor at the Center for Astronomy Signal Processing and Electronics Research. This 1024 channel spectrometer calculates the accumulated power and power-squared, from which the spectral kurtosis is calculated post-observation. Variations in the kurtosis are indicative of non-Gaussianity in the signal, which can be used to detect variable cosmic signals as well as radio frequency interference (RFI). During the three-month period of observations, dust activity occurred on Mars in the form of small-scale dust storms; however, no signals indicating lightning discharge were detected. Frequent signals in the kurtstrum that contain spectral peaks with an approximate 10 Hz fundamental were seen at both 3.2 and 8.0 GHz, but were the result of narrowband RFI with harmonics spread over a broad frequency range.

  19. The Allen Telescope Array as Square Kilometer Array Pathfinder

    Science.gov (United States)

    Bower, Geoffrey C.

    2007-12-01

    The Allen Telescope Array (ATA) is a new radio interferometer that has begun scientific operations in 2007. Many of the technologies, techniques, and observing modes developed for the ATA are directly applicable to the Square Kilometer Array (SKA). The ATA is a pioneer of the LNSD, which refers to a large number (LN) of small diameter (SD) dishes to create the array. This concept underlies nearly all SKA designs. Other relevant technologies are the offset Gregorian ATA antenna, the ATA wideband log periodic feed, transport of broadband data over fiber optic cables, and flexible digital signal processing electronics. The small dishes of the ATA gives it extraordinary wide-field imaging and survey capability but also require new solutions for calibration and imaging. Real time imaging, rapid response to transients, and thinking telescope technology are also under development. Finally, the ATA is developing commensal observing modes, which enable multiple simultaneous science programs, such as SETI, transient surveys, and HI surveys. Opportunities exist for community members to perform scientific investigations as well as develop techniques and technology for the SKA through use of the ATA.

  20. SETI Observations of Exoplanets with the Allen Telescope Array

    CERN Document Server

    Harp, G R; Tarter, Jill C; Dreher, John; Jordan, Jane; Shostak, Seth; Smolek, Ken; Kilsdonk, Tom; Wimberly, M K R; Ross, John; Barott, W C; Ackermann, R F; Blair, Samantha

    2016-01-01

    We report radio SETI observations on a large number of known exoplanets and other nearby star systems using the Allen Telescope Array (ATA) for about 19000 hours from May 2009 to Dec 2015. This search focused on narrow-band radio signals from a set totaling 9293 stars, including 2015 exoplanet stars and Kepler objects of interest and an additional 65 whose planets may be close to their Habitable Zone. The ATA observations were made using multiple synthesized beams and an anticoincidence filter to help identify terrestrial radio interference. Stars were observed over frequencies from 1-9 GHz in multiple bands that avoid strong terrestrial communication frequencies. Data were processed in near-real time for narrow-band (0.7-100 Hz) continuous and pulsed signals with transmitter/receiver relative accelerations from -0.3 to 0.3 m/s^2. A total of 1.9 x 10^8 unique signals requiring immediate follow-up were detected in observations covering more than 8 x 10^9 star-MHz. We detected no persistent signals from extrate...

  1. The Allen Telescope Array Search for Electrostatic Discharges on Mars

    CERN Document Server

    Anderson, Marin M; Barott, William C; Bower, Geoffrey C; Delory, Gregory T; de Pater, Imke; Werthimer, Dan

    2011-01-01

    The Allen Telescope Array was used to monitor Mars between 9 March and 2 June 2010, over a total of approximately 30 hours, for radio emission indicative of electrostatic discharge. The search was motivated by the report from Ruf et al. (2009) of the detection of non-thermal microwave radiation from Mars characterized by peaks in the power spectrum of the kurtosis, or kurtstrum, at 10 Hz, coinciding with a large dust storm event on 8 June 2006. For these observations, we developed a wideband signal processor at the Center for Astronomy Signal Processing and Electronics Research (CASPER). This 1024-channel spectrometer calculates the accumulated power and power-squared, from which the spectral kurtosis is calculated post-observation. Variations in the kurtosis are indicative of non-Gaussianity in the signal, which can be used to detect variable cosmic signals as well as radio frequency interference (RFI). During the three month period of observations, dust activity occurred on Mars in the form of small-scale d...

  2. Geographical variation in bill size across bird species provides evidence for Allen's rule.

    Science.gov (United States)

    Symonds, Matthew R E; Tattersall, Glenn J

    2010-08-01

    Allen's rule proposes that the appendages of endotherms are smaller, relative to body size, in colder climates, in order to reduce heat loss. Empirical support for Allen's rule is mainly derived from occasional reports of geographical clines in extremity size of individual species. Interspecific evidence is restricted to two studies of leg proportions in seabirds and shorebirds. We used phylogenetic comparative analyses of 214 bird species to examine whether bird bills, significant sites of heat exchange, conform to Allen's rule. The species comprised eight diverse taxonomic groups-toucans, African barbets, Australian parrots, estrildid finches, Canadian galliforms, penguins, gulls, and terns. Across all species, there were strongly significant relationships between bill length and both latitude and environmental temperature, with species in colder climates having significantly shorter bills. Patterns supporting Allen's rule in relation to latitudinal or altitudinal distribution held within all groups except the finches. Evidence for a direct association with temperature was found within four groups (parrots, galliforms, penguins, and gulls). Support for Allen's rule in leg elements was weaker, suggesting that bird bills may be more susceptible to thermoregulatory constraints generally. Our results provide the strongest comparative support yet published for Allen's rule and demonstrate that thermoregulation has been an important factor in shaping the evolution of bird bills. PMID:20545560

  3. Mathematics and Humor: John Allen Paulos and the Numeracy Crusade

    Directory of Open Access Journals (Sweden)

    Paul H. Grawe

    2015-07-01

    Full Text Available John Allen Paulos at minimum gave the Numeracy movement a name through his book Innumeracy: Mathematical Illiteracy and Its Consequences. What may not be so obvious was Paulos’ strong interest in the relationship between mathematics and mathematicians on the one hand and humor and stand-up-comedian joke structures on the other. Innumeracy itself could be seen as a typically mathematical Gotcha joke on American culture generally. In this perspective, a Minnesotan acculturated to Minnesota-Nice Humor of Self-Immolation Proclivities (SImP looks at the more raw-boned, take-no-prisoners humor style Paulos outlined in Mathematics and Humor and implemented in Innumeracy. Despite the difference in humor styles, there is much to applaud in Paulos’ analysis of the relationship between certain types of humor and professional interests of mathematicians in Mathematics and Humor. Much humor relies on the sense of incongruity which Paulos’ claims to be central to all humor and key to mathematical reductio ad absurdum. Mathematics is rightfully famous for a sense of combinatorial playfulness in its most elegant proofs, as humor often relies on clashing combinations of word play. And a great range of mathematical lore is best understood within a concept of a sudden drop from one sense of certainty to another (essentially a Gotcha on the audience. Innumeracy repeatedly exemplifies Gotchas on the great unwashed and unmathematical majority. Extensive empirical evidence over the last quarter century allows us to synthesize these Paulos observations into the idea that inculcated mathematical humor has strong propensities to complex Intellectual, Advocate, and Crusader humor forms. However, the Paulos humors do not include the Sympathetic Pain humor form, the inclusion of which may increase teaching effectiveness.

  4. Convenient synthesis of β-allenic α-difluoromethylenephosphonic acid monoesters: Potential synthons for cyclic phosphate mimics

    Institute of Scientific and Technical Information of China (English)

    Yun Lin; Jin Tao Liu

    2007-01-01

    β-Allenic α-difluoromethylenephosphonic acid monoesters were prepared under mild conditions for the first time by hydrolyzing the corresponding diethyl phosphonates in aqueous sodium hydroxide solution.

  5. Allen Brain Atlas: an integrated spatio-temporal portal for exploring the central nervous system.

    Science.gov (United States)

    Sunkin, Susan M; Ng, Lydia; Lau, Chris; Dolbeare, Tim; Gilbert, Terri L; Thompson, Carol L; Hawrylycz, Michael; Dang, Chinh

    2013-01-01

    The Allen Brain Atlas (http://www.brain-map.org) provides a unique online public resource integrating extensive gene expression data, connectivity data and neuroanatomical information with powerful search and viewing tools for the adult and developing brain in mouse, human and non-human primate. Here, we review the resources available at the Allen Brain Atlas, describing each product and data type [such as in situ hybridization (ISH) and supporting histology, microarray, RNA sequencing, reference atlases, projection mapping and magnetic resonance imaging]. In addition, standardized and unique features in the web applications are described that enable users to search and mine the various data sets. Features include both simple and sophisticated methods for gene searches, colorimetric and fluorescent ISH image viewers, graphical displays of ISH, microarray and RNA sequencing data, Brain Explorer software for 3D navigation of anatomy and gene expression, and an interactive reference atlas viewer. In addition, cross data set searches enable users to query multiple Allen Brain Atlas data sets simultaneously. All of the Allen Brain Atlas resources can be accessed through the Allen Brain Atlas data portal.

  6. Space Weather data processing and Science Gateway for the Van Allen Probes

    Science.gov (United States)

    Romeo, G.; Barnes, R. J.; Weiss, M.; Fox, N. J.; Mauk, B.; Potter, M.; Kessel, R.

    2013-12-01

    A near real-time data processing pipeline for the Space Weather broadcast data from the Van Allen Probes is presented. The Van Allen Probes broadcasts a sub-set of the science data in real-time when not downlinking the principal science data. This broadcast is received by several ground stations and relayed to APL in near real time to be ingested into the space weather processing pipeline. This pipeline processes the available level zero space weather data into higher level science data products. These products are made available to the public via the Van Allen Probes Science Gateway website (http://athena.jhuapl.edu). The website acts as pivotal point though which all other instrument SOC's can be accessed. Several other data products (e.g KP/DST indices) and tools (e.g orbit calculator) are made also available to the general public.

  7. Spacecraft-level verification of the Van Allen Probes' RF communication system

    Science.gov (United States)

    Crowne, M. J.; Srinivasan, D.; Royster, D.; Weaver, G.; Matlin, D.; Mosavi, N.

    This paper presents the verification process, lessons learned, and selected test results of the radio frequency (RF) communication system of the Van Allen Probes, formerly known as the Radiation Belt Storm Probes (RBSP). The Van Allen Probes mission is investigating the doughnut-shaped regions of space known as the Van Allen radiation belts where the Sun interacts with charged particles trapped in Earth's magnetic field. Understanding this dynamic area that surrounds our planet is important to improving our ability to design spacecraft and missions for reliability and astronaut safety. The Van Allen Probes mission features two nearly identical spacecraft designed, built, and operated by the Johns Hopkins University Applied Physics Laboratory (JHU/APL) for the National Aeronautics and Space Administration (NASA). The RF communication system features the JHU/APL Frontier Radio. The Frontier Radio is a software-defined radio (SDR) designed for spaceborne communications, navigation, radio science, and sensor applications. This mission marks the first spaceflight usage of the Frontier Radio. RF ground support equipment (RF GSE) was developed using a ground station receiver similar to what will be used in flight and whose capabilities provided clarity into RF system performance that was previously not obtained until compatibility testing with the ground segments. The Van Allen Probes underwent EMC, acoustic, vibration, and thermal vacuum testing at the environmental test facilities at APL. During this time the RF communication system was rigorously tested to ensure optimal performance, including system-level testing down to threshold power levels. Compatibility tests were performed with the JHU/APL Satellite Communication Facility (SCF), the Universal Space Network (USN), and the Tracking and Data Relay Satellite System (TDRSS). Successful completion of this program as described in this paper validated the design of the system and demonstrated that it will be able to me

  8. A Critique of Mark D. Allen's "The Preservation of Verb Subcategory Knowledge in a Spoken Language Comprehension Deficit"

    Science.gov (United States)

    Kemmerer, David

    2008-01-01

    Allen [Allen, M. (2005). "The preservation of verb subcategory knowledge in a spoken language comprehension deficit." "Brain and Language, 95", 255-264.] reports a single patient, WBN, who, during spoken language comprehension, is still able to access some of the syntactic properties of verbs despite being unable to access some of their semantic…

  9. The effectiveness of the Allen Carr smoking cessation training in companies tested in a quasi-experimental design

    NARCIS (Netherlands)

    Dijkstra, Arie; Zuidema, Rixt; Vos, Diederick; van Kalken, Marike

    2014-01-01

    Background: The Allen Carr training (ACt) is a popular one-session smoking cessation group training that is provided by licensed organizations that have the permission to use the Allen Carr method. However, few data are available on the effectiveness of the training. Methods: In a quasi-experimental

  10. A generalized solution to a Cahn-Hilliard/Allen-Cahn system

    OpenAIRE

    Jose Luiz Boldrini; Patricia Nunes da Silva

    2004-01-01

    We study a system consisting of a Cahn-Hilliard and several Allen-Cahn type equations. This system was proposed by Fan, L.-Q. Chen, S. Chen and Voorhees for modelling Ostwald ripening in two-phase system. We prove the existence of a generalized solution whose concentration component is in $L^{infty}$.

  11. A generalized solution to a Cahn-Hilliard/Allen-Cahn system

    Directory of Open Access Journals (Sweden)

    Jose Luiz Boldrini

    2004-10-01

    Full Text Available We study a system consisting of a Cahn-Hilliard and several Allen-Cahn type equations. This system was proposed by Fan, L.-Q. Chen, S. Chen and Voorhees for modelling Ostwald ripening in two-phase system. We prove the existence of a generalized solution whose concentration component is in $L^{infty}$.

  12. Well-posedness for one-dimensional anisotropic Cahn-Hilliard and Allen-Cahn systems

    Directory of Open Access Journals (Sweden)

    Ahmad Makki

    2015-01-01

    Full Text Available Our aim is to prove the existence and uniqueness of solutions for one-dimensional Cahn-Hilliard and Allen-Cahn type equations based on a modification of the Ginzburg-Landau free energy proposed in [8]. In particular, the free energy contains an additional term called Willmore regularization and takes into account strong anisotropy effects.

  13. Tim Allen, one of Hollywood's top comedy actors with Rolf Landua from CERN

    CERN Multimedia

    Laurent Guiraud

    2000-01-01

    Tim Allen ('Galaxy Quest', 'For Richer and Poorer', 'The Santa Clause', Voice of 'Buzz Lightyear', in Toy Story 1 and 2), visited CERN in July 2000. He has a keen interest in modern physics. In his last book "I'm not really here" he contemplates the funny and the intriguing aspects of quantum physics in his daily life.

  14. Synthesis of 2,3-disubstituted thiophens via metalated acetylenes and allenes

    NARCIS (Netherlands)

    Jong, R.L.P. de; Brandsma, L.

    1982-01-01

    2,3-Disubstituted thiophen derivatives have been obtained in reasonable yields by treating 2-alkyne- and allene derivatives with butyllithium and potassium t-butoxide in tetrahydrofuran, adding carbon disulfide to the organometallic intermediate and then successively adding t-butyl alcohol, hexameth

  15. Regioselective Allene Hydrosilylation Catalyzed by NHC Complexes of Nickel and Palladium

    Science.gov (United States)

    Miller, Zachary D.; Li, Wei; Belderrain, Tomás R.; Montgomery, John

    2013-01-01

    Regioselective methods for allene hydrosilylation have been developed, with regioselectivity being governed primarily by choice of metal. Alkenylsilanes are produced via nickel catalysis with larger N-heterocyclic carbene ligands, and allylsilanes are produced via palladium catalysis with smaller N-heterocyclic carbene ligands. These complementary methods allow either regioisomeric product to be obtained with exceptional regiocontrol. PMID:24079389

  16. Automated determination of electron density from electric field measurements on the Van Allen Probes spacecraft

    Science.gov (United States)

    Zhelavskaya, Irina; Kurth, William; Spasojevic, Maria; Shprits, Yuri

    2016-07-01

    We present the Neural-network-based Upper-hybrid Resonance Determination (NURD) algorithm for automatic inference of the electron number density from plasma wave measurements made onboard NASA's Van Allen Probes mission. A feedforward neural network is developed to determine the upper hybrid resonance frequency, f_{uhr}, from electric field measurements, which is then used to calculate the electron number density. In previous missions, the plasma resonance bands were manually identified, and there have been few attempts to do robust, routine automated detections. We describe the design and implementation of the algorithm and perform an initial analysis of the resulting electron number density distribution obtained by applying NURD to 2.5 years of data collected with the EMFISIS instrumentation suite of the Van Allen Probes mission. Densities obtained by NURD are compared to those obtained by another recently developed automated technique and also to an existing empirical plasmasphere and trough density model.

  17. National uranium resource evaluation: McAllen and Brownsville Quadrangles, Texas

    Energy Technology Data Exchange (ETDEWEB)

    Charepon, A J; Stauber, A J

    1982-06-01

    The McAllen and Brownsville Quadrangles, Texas, were evaluated to a depth of 1500 m to identify geologic environments and delineate areas favorable for uranium deposits. The environments were selected according to criteria established for the National Uranium Resource Evaluation program. Surface studies included investigations of uranium occurrences described in the literature, of locations of aerial radiometric anomalies, of surface exposures, and of locations of anomalous hydrogeochemical and stream-sediment reconnaissance data and collation of information on uranium exploration. Subsurface evaluation of selected geologic units was accomplished by using electric and gamma-ray well logs to construct maps and construct maps and cross sections. In the McAllen Quadrangle, an environment favorable for Texas roll-type sandstone uranium deposits is identified in 36 areas in the Goliad, Fleming-Oakville, Catahoula-Frio, and Whitsett Formations. All other units in both quadrangles are considered unfavorable.

  18. Quantitative mid-infrared spectra of allene and propyne from room to high temperatures

    KAUST Repository

    Es-sebbar, Et-touhami

    2014-11-01

    Allene (a-C3H4; CH2CCH2) and propyne (p-C3H4; CH3C2H) have attracted much interest because of their relevance to the photochemistry in astrophysical environments as well as in combustion processes. Both allene and propyne have strong absorption in the infrared region. In the present work, infrared spectra of a-C3H4 and p-C3H4 are measured in the gas phase at temperatures ranging from 296 to 510 K. The spectra are measured over the 580-3400 cm-1 spectral region at resolutions of 0.08 and 0.25 cm-1 using Fourier Transform Infrared spectroscopy. Absolute integrated intensities of the main infrared bands are determined at room temperature and compared with values derived from literature for both molecules. Integrated band intensities are also determined as a function of temperature in various spectral regions.

  19. Activity Regulation by Heteromerization of Arabidopsis Allene Oxide Cyclase Family Members

    OpenAIRE

    Markus Otto; Christin Naumann; Wolfgang Brandt; Claus Wasternack; Bettina Hause

    2016-01-01

    Jasmonates (JAs) are lipid-derived signals in plant stress responses and development. A crucial step in JA biosynthesis is catalyzed by allene oxide cyclase (AOC). Four genes encoding functional AOCs (AOC1, AOC2, AOC3 and AOC4) have been characterized for Arabidopsis thaliana in terms of organ- and tissue-specific expression, mutant phenotypes, promoter activities and initial in vivo protein interaction studies suggesting functional redundancy and diversification, including first hints at enz...

  20. Convergence of the Allen-Cahn Equation to multi-phase mean-curvature flow

    OpenAIRE

    Laux, Tim; Simon, Thilo

    2016-01-01

    We present a convergence result for solutions of the vector-valued Allen-Cahn Equation. In the spirit of the work of Luckhaus and Sturzenhecker we establish convergence towards a distributional formulation of multi-phase mean-curvature flow using sets of finite perimeter. Like their result, ours relies on the assumption that the time-integrated energies of the approximations converge to those of the limit.

  1. The Van Allen Radiation Belt Discovery - A Look Behind the Scenes

    Science.gov (United States)

    Ludwig, G. H.

    2006-05-01

    During the forty-eight years since the discovery in 1958 of the Van Allen Radiation Belt by James A. Van Allen and his students at the University of Iowa, the event has been described in numerous published papers and other forms. Once launched on 31 January 1958, the instrument in Explorer I behaved strangely. Having no in-orbit data storage, it provided only brief snapshots of the radiation intensity as the satellite passed above the ground stations. The pattern of behavior was just beginning to unfold when Explorer III followed it into orbit on 26 March. The data recorder in Explorer III captured the pattern of behavior throughout repeated orbits. Upon seeing the first readout of data from a single complete orbit, it became quite clear that the detector was, in fact, registering an unexpected but real physical effect. Efforts to understand that phenomenon and describe it convincingly consumed Van Allen, Carl E. McIlwain, Ernest E. Ray, and the author for the next several weeks. We prepared our material as a University of Iowa Research Report during the last weeks of April. Van Allen made the first public announcement of the discovery at a special joint assembly of the National Academy of Sciences and the American Physical Society on 1 May 1958. Behind that widely-known general story is a more detailed tale of many discrete steps that were accompanied by intense expectation, initial disappointment, long hours of hard work, and growing excitement. The tale, interesting in its own right, conveys a vivid impression of a method of graduate student "cradle-to-grave" space research that has become more difficult to emulate with the growing complexity of the research programs and their instruments and carriers.

  2. Shipping the Good Apples Out? An Empirical Confirmation of the Alchian-Allen Conjecture

    OpenAIRE

    David Hummels; Alexandre Skiba

    2002-01-01

    We model demand for quality differentiated goods to derive a relationship between trade costs and the quality composition of trade. Detailed data on traded goods' prices, quantities and shipping costs for many importers and exporters are used to test these predictions. These data provide a strong rejection of the iceberg assumption on transportation costs and a strong confirmation of the classical Alchian Allen hypothesis. Within a narrowly defined commodity classification, exporters charge d...

  3. Book review: Benign violence: education in and beyond the age of reason by Ansgar Allen

    OpenAIRE

    Kumar Jha, Mithilesh

    2016-01-01

    In Benign Violence: Education In and Beyond the Age of Reason, Ansgar Allen challenges the view that education is, at its core, an incontestable social good by outlining how its structures are underpinned by systemic violence. While Allen’s argument may not entirely sway readers away from the overarchingly positive value typically attributed to education, it nonetheless asks serious questions about the role that the education system and examinations have played in shaping us and our world, wr...

  4. Testing the Alchian-Allen Theorem: A Study of Consumer Behavior in the Gasoline Market

    OpenAIRE

    Robert Lawson; Lauren Raymer

    2006-01-01

    This paper uses a data set of daily sales at a single gasoline station over a seven year period to determine if consumers respond to relative price changes among the three grades of gasoline. Based on the reasoning of Alchian and Allen (1964) and Barzel (1976), market shares of higher quality gasoline should increase at the expense of regular grade gasoline when overall gasoline prices increase. The empirical results do not conform to this expectation. We find instead that the consumers in th...

  5. [2+2+2] cycloaddition reactions involving allenes catalysed by rhodium

    OpenAIRE

    Haraburda, Ewelina

    2015-01-01

    The development of new chemical processes for the formation of carbon-carbon bonds is an important topic in organic chemistry. In particular, the transition metal catalysed [2+2+2] cycloaddition reaction is a highly efficient synthetic tool that allows six-membered polysubstituted carbo- and heterocyclic derivatives to be obtained in an atom economy process. Allenes are versatile substrates for cycloaddition reactions that provide a good reactivity profile together with the ability to increas...

  6. [A study on Horace N. Allen's medicine and recognition of Korean body].

    Science.gov (United States)

    Lee, Young Ah

    2011-12-31

    Je Jung Won was the first modern-style Government hospital built by the Korean King Ko-Jong in April 1885, and it was the medical missionary Horace Newton Allen(1858~1932) who made one of the greatest contributions to the establishment of the hospital. Allen was an American missionary. He graduated from Ohio Wesleyan University with a degree in theology in 1881, and completed one-yearcourse at Miami Medical College. In Korea and America he worked as a physician, a missionary, an American diplomatic minister to Korea and a Korean minister's secretary to America. While acting as a mediator between Korea and America, he knew and recorded the domestic and foreign situation of Korea during Gaehwagi(the civilized and enlightened age). Thus to study him is to understand Korea's Gaehwagi as well as to research American medical missionaries. During his stay in Korea(1884~1905), Allen steadily wrote diaries and letters about Korean politics, diplomacy, society, culture, and medicine. Thus his public/private record through diaries and letters(the quantity of these materials amounts to several thousands) supplements the Korean early modern era's historical record. However, until now these materials have received little scholarly attention from researchers except for a few historians of missionary work between Korea and America, or of Korean modern medicine. I intended to use these materials to suggest a new perspective on the study of Korean Gaehwagi. Allen, along with John W. Heron, who came to Seoul on June 21st 1885, treated about 10,460 Korean patients in the first year of the opening of JeJungWon. They made "the first annual report of the Korean Government Hospital". This report explained how Allen and Heron regarded and treated Korean patients. Allen's diaries, letters and other writings offer a realistic view of how the western people actually recognized the Korean people at that time. As a western doctor, Allen had an ambivalent attitude toward Korean medical concepts

  7. [A study on Horace N. Allen's medicine and recognition of Korean body].

    Science.gov (United States)

    Lee, Young Ah

    2011-12-31

    Je Jung Won was the first modern-style Government hospital built by the Korean King Ko-Jong in April 1885, and it was the medical missionary Horace Newton Allen(1858~1932) who made one of the greatest contributions to the establishment of the hospital. Allen was an American missionary. He graduated from Ohio Wesleyan University with a degree in theology in 1881, and completed one-yearcourse at Miami Medical College. In Korea and America he worked as a physician, a missionary, an American diplomatic minister to Korea and a Korean minister's secretary to America. While acting as a mediator between Korea and America, he knew and recorded the domestic and foreign situation of Korea during Gaehwagi(the civilized and enlightened age). Thus to study him is to understand Korea's Gaehwagi as well as to research American medical missionaries. During his stay in Korea(1884~1905), Allen steadily wrote diaries and letters about Korean politics, diplomacy, society, culture, and medicine. Thus his public/private record through diaries and letters(the quantity of these materials amounts to several thousands) supplements the Korean early modern era's historical record. However, until now these materials have received little scholarly attention from researchers except for a few historians of missionary work between Korea and America, or of Korean modern medicine. I intended to use these materials to suggest a new perspective on the study of Korean Gaehwagi. Allen, along with John W. Heron, who came to Seoul on June 21st 1885, treated about 10,460 Korean patients in the first year of the opening of JeJungWon. They made "the first annual report of the Korean Government Hospital". This report explained how Allen and Heron regarded and treated Korean patients. Allen's diaries, letters and other writings offer a realistic view of how the western people actually recognized the Korean people at that time. As a western doctor, Allen had an ambivalent attitude toward Korean medical concepts

  8. Evaluation of effects of groundwater withdrawals at the proposed Allen combined-cycle combustion turbine plant, Shelby County, Tennessee

    Science.gov (United States)

    Haugh, Connor J.

    2016-08-10

    The Mississippi Embayment Regional Aquifer Study groundwater-flow model was used to simulate the potential effects of future groundwater withdrawals at the proposed Allen combined-cycle combustion turbine plant in Shelby County, Tennessee. The scenario used in the simulation consisted of a 30-year average withdrawal period followed by a 30-day maximum withdrawal period. Effects of withdrawals at the Allen plant site on the Mississippi embayment aquifer system were evaluated by comparing the difference in simulated water levels in the aquifers at the end of the 30-year average withdrawal period and at the end of the scenario to a base case without the Allen combined-cycle combustion turbine plant withdrawals. Simulated potentiometric surface declines in the Memphis aquifer at the Allen plant site were about 7 feet at the end of the 30-year average withdrawal period and 11 feet at the end of the scenario. The affected area of the Memphis aquifer at the Allen plant site as delineated by the 4-foot potentiometric surface-decline contour was 2,590 acres at the end of the 30-year average withdrawal period and 11,380 acres at the end of the scenario. Simulated declines in the underlying Fort Pillow aquifer and overlying shallow aquifer were both less than 1 foot at the end of the 30-year average withdrawal period and the end of the scenario.

  9. Engaging Allene-Derived Zwitterions in an Unprecedented Mode of Asymmetric [3+2]-Annulation Reaction.

    Science.gov (United States)

    Sankar, Muthukumar G; Garcia-Castro, Miguel; Golz, Christopher; Strohmann, Carsten; Kumar, Kamal

    2016-08-01

    Catalytic addition of chiral phosphine, that is, (R)- or (S)-SITCP, to an α-substituted allene ester generated a zwitterionic dipole. Under optimized reaction conditions, this dipole could engage isatine-derived N-Boc-ketimines in a novel mode of [3+2] annulation reaction. Pyrrolinyl spirooxindoles are thus afforded in high yields and with excellent enantioselectivities. The unprecedented annulation reaction successfully facilitated the construction of sp(3) -rich and highly substituted 3,2'-pyrrolidinyl spirooxindoles supporting many chiral centers. PMID:27345724

  10. The Allen Telescope Array: The First Widefield, Panchromatic, Snapshot Radio Camera for Radio Astronomy and SETI

    CERN Document Server

    Welch, Jack; Blitz, Leo; Bock, Douglas; Bower, Geoffrey C; Cheng, Calvin; Croft, Steve; Dexter, Matt; Engargiola, Greg; Fields, Ed; Forster, James; Gutierrez-Kraybill, Colby; Heiles, Carl; Helfer, Tamara; Jorgensen, Susanne; Keating, Garrett; Lugten, John; MacMahon, Dave; Milgrome, Oren; Thornton, Douglas; Urry, Lynn; van Leeuwen, Joeri; Werthimer, Dan; Williams, Peter H; Tarter, Melvin Wright Jill; Ackermann, Robert; Atkinson, Shannon; Backus, Peter; Barott, William; Bradford, Tucker; Davis, Michael; DeBoer, Dave; Dreher, John; Harp, Gerry; Jordan, Jane; Kilsdonk, Tom; Pierson, Tom; Randall, Karen; Ross, John; Fleming, Seth Shostak Matt; Cork, Chris; Wadefalk, Artyom Vitouchkine Niklas; Weinreb, Sander

    2009-01-01

    The first 42 elements of the Allen Telescope Array (ATA-42) are beginning to deliver data at the Hat Creek Radio Observatory in Northern California. Scientists and engineers are actively exploiting all of the flexibility designed into this innovative instrument for simultaneously conducting surveys of the astrophysical sky and conducting searches for distant technological civilizations. This paper summarizes the design elements of the ATA, the cost savings made possible by the use of COTS components, and the cost/performance trades that eventually enabled this first snapshot radio camera. The fundamental scientific program of this new telescope is varied and exciting; some of the first astronomical results will be discussed.

  11. Multi-dimensional pyramidal traveling fronts in the Allen-Cahn equations

    OpenAIRE

    黒川, 由生; Kurokawa, Yu; 谷口, 雅治; Taniguchi, Masaharu

    2011-01-01

    This paper studies traveling front solutions of pyramidal shapes in the Allen-Cahn equation in $\\mathbb{R}^{N}$ with $N\\geq 3$.It is well known that two-dimensional V-form traveling fronts and three-dimensional pyramidal traveling fronts exist and are stable. The aim of this paper is to show that for $N\\geq 4$,there exist $N$-dimensional pyramidal traveling fronts.We construct a supersolution and a subsolution, and find a pyramidaltraveling front solution between them. For the construction o...

  12. Allen Terhaar: Future Development of Cotton for the 21 st Century

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    The 2011 China International Cotton Conference, organized by China Cotton Association (CCA), Research Centre for Rural Economy (RCRE) of the Ministry of Agriculture (MOA) as well as the China National Cotton Exchange (CNCE), took place June 15-16 in the beautiful coastal city of Dalian this year. Allen Terhaar, Executive President of Cotton Council International (CCI), delivered a speech with the name of Cotton in the 21st Century: Sustaining Our Industry's Future. In the following part, let's share his opinions and suggestions.

  13. Accounting for Diradical Character through DFT. The Case of Vinyl Allene Oxide Rearrangement.

    Science.gov (United States)

    López, Roberto Villar; Faza, Olalla Nieto; López, Carlos Silva

    2015-11-01

    The transformation of vinyl allene oxides into cyclopentenones is key to the biosynthesis of a number of hormone-like molecules in plants. Two competitive paths are generally accepted for this transformation: a concerted SN2-like mechanism and a stepwise path with a diradical oxyallyl intermediate. Recently, a new stepwise closed-shell path has been proposed that circumvents the key oxyallyl intermediate. In this work, we conduct a thorough computational investigation, including dynamic effects, to identify the most likely mechanism for this transformation.

  14. Rich methane premixed laminar flames doped by light unsaturated hydrocarbons - Part I : allene and propyne

    CERN Document Server

    Gueniche, Hadj-Ali; Dayma, Guillaume; Fournet, Ren{é}; Battin-Leclerc, Fr{é}d{é}rique

    2006-01-01

    The structure of three laminar premixed rich flames has been investigated: a pure methane flame and two methane flames doped by allene and propyne, respectively. The gases of the three flames contain 20.9% (molar) of methane and 33.4% of oxygen, corresponding to an equivalence ratio of 1.25 for the pure methane flame. In both doped flames, 2.49% of C3H4 was added, corresponding to a ratio C3H4/CH4 of 12% and an equivalence ratio of 1.55. The three flames have been stabilized on a burner at a pressure of 6.7 kPa using argon as dilutant, with a gas velocity at the burner of 36 cm/s at 333 K. The concentration profiles of stable species were measured by gas chromatography after sampling with a quartz microprobe. Quantified species included carbon monoxide and dioxide, methane, oxygen, hydrogen, ethane, ethylene, acetylene, propyne, allene, propene, propane, 1,2-butadiene, 1,3-butadiene, 1-butene, isobutene, 1-butyne, vinylacetylene, and benzene. The temperature was measured using a PtRh (6%)-PtRh (30%) thermocou...

  15. Simultaneous Observation of Plasma Waves Detected by the Van Allen Probes Spacecraft During Close Spacecraft Separations

    Science.gov (United States)

    Hospodarsky, George; Santolik, Ondrej; Averkamp, Terrance; Bounds, Scott; Kurth, William; Kletzing, Craig; Wygant, John; Bonnell, John

    2014-05-01

    The twin Van Allen Probe spacecraft launched in August 2012 includes the Electric and Magnetic Field Instrument Suite and Integrated Science (EMFISIS) Wave instrument that simultaneously measures three orthogonal components of the wave magnetic field and, with the support of the Electric Fields and Waves (EFW) instrument sensors, three components of the wave electric field at two locations in Earth's magnetosphere. Measuring all six wave components simultaneously allows the wave propagation parameters, such as the wave normal angle and Poynting vector, of the plasma wave emissions to be obtained. The orbit of the spacecraft are designed such that they "lap" each other roughly every 69 days, allowing observations over a range of spacecraft separations, with the closest separations on the order of 100 km. Simultaneous measurements at a range of distances between the two spacecraft provide an opportunity to investigate the scale, size and propagation characteristics of a number of plasma wave emissions associated with the Van Allen radiation belts, including whistler mode chorus. We examine these characteristics of the emissions detected by both spacecraft during separation distance of < 1000 km. Very similar small scale chorus wave packets were detected by both spacecraft when separation distances were the smallest. The similarities and differences detected by both spacecraft and their relation to separation distances will be discussed.

  16. Van Allen Probes RBSPICE Observations of the March 2015 Solar Storm

    Science.gov (United States)

    Manweiler, J. W.; Patterson, J. D.; Gerrard, A. J.; Gkioulidou, M.; Mitchell, D. G.; Lanzerotti, L. J.

    2015-12-01

    The Van Allen Probes Radiation Belt Storm Probes Ion Composition Experiment (RBSPICE) instrument provides the ability to measure the energetic particle composition of the Earth's ring current from 20 KeV to approximately 1 MeV. On March 17, 2015 a solar storm impacted the Earth with a maximum negative Dst of -232. The onset of the storm was directly observed by the RBSPICE B instrument. The RBSPICE A instrument observed the development of the storm prior to onset in one orbit and a few hours after onset on the subsequent orbit. These observations displayed a number of interesting features of the storm including an Oxygen beam, high beta plasma conditions, and multiple injections of protons, helium, and oxygen into the inner magnetosphere. Our presentation will report on the observations made from each RBSPICE instrument coupled with observations from other Van Allen Probes instruments (EMFISIS, ECT, and EFW) to provide a complete picture of the impact of this storm on the Earth's inner magnetosphere.

  17. Generation and effects of EMIC waves observed by the Van Allen Probes on 18 March 2013

    Science.gov (United States)

    Zhang, J.; Saikin, A.; Gamayunov, K. V.; Spence, H. E.; Larsen, B.; Geoffrey, R.; Smith, C. W.; Torbert, R. B.; Kurth, W. S.; Kletzing, C.

    2015-12-01

    Electromagnetic ion cyclotron (EMIC) waves play a crucial role in particle dynamics in the Earth's magnetosphere. The free energy for EMIC wave generation is usually provided by the temperature anisotropy of the energetic ring current ions. EMIC waves can in turn cause particle energization and losses through resonant wave-particle interactions. Using measurements from the Van Allen Probes, we perform a case study of EMIC waves and associated plasma conditions observed on 18 March 2013. From 0204 to 0211 UT, the Van Allen Probe-B detected He+-band EMIC wave activity in the post-midnight sector (MLT=4.6-4.9) at very low L-shells (L=2.6-2.9). The event occurred right outside the inward-pushed plasmapause in the early recovery phase of an intense geomagnetic storm - min. Dst = -132 nT at 2100 UT on 17 March 2013. During this event, the fluxes of energetic (> 1 keV), anisotropic O+ dominate both the H+ and He+ fluxes in this energy range. Meanwhile, O+ fluxes at low energies (coefficient (Dαα) of the EMIC wave packets by using nominal ion composition, derived total ion density from the frequencies of upper hybrid resonance, and measured ambient and wave magnetic field. EMIC wave growth rates are also calculated to evaluate the role of loss-cone distributed ring current ions in the EMIC wave generation.

  18. Impacts of intense inward and outward ULF wave radial diffusion on the Van Allen belts

    Science.gov (United States)

    Mann, Ian; Ozeke, Louis; Rae, I. Jonathan; Murphy, Kyle

    2016-07-01

    During geomagnetic storms, the power in ultra-low frequency (ULF) waves can be orders of magnitude larger than that predicted by statistics determined from an entire solar cycle. This is especially true during the main phase and early recovery phase. These periods of enhanced storm-time ULF wave power can have significant impacts on the morphology and structure of the Van Allen belts. Either fast inward or outward radial diffusion can result, depending on the profiles of the electron phase space density and the outer boundary condition at the edge of the belts. Small changes in the time sequence of powerful ULF waves, and the time sequence of any magnetopause shadowing or the recovery of plamasheet sources relative to the ULF wave occurrence, have a remarkable impact on the resulting structure of the belts. The overall impact of the enhanced ULF wave power is profound, but the response can be very different depending on the available source flux in the plasmasheet. We review these impacts by examining ultra-relativistic electron dynamics during seemingly different storms during the Van Allen Probe era, including during the Baker et al. third radiation belt, and show the observed behaviour can be largely explained by differences in the time sequence of events described above.

  19. Book review: The man who saved the whooping crane: The Robert Porter Allen story

    Science.gov (United States)

    King, Sammy L.

    2013-01-01

    Kathleen Kaska has done a remarkable job of capturing the life of Robert Porter Allen, truly one of the premier biologist/conservationists of the twentieth century. Allen, born in 1905, grew up reading outdoor adventure books and playing in the woods of northern Pennsylvania with his brother. At a young age, he was encouraged to join the Junior Audubon club and his passion for ornithology soon crystallized. He attended Lafayette College to study ornithology, but he was disinterested in academics and fared poorly. He dropped out after two years and joined the Merchant Marines. Not an auspicious beginning for such a highly respected scientist and conservationist! Soon, however, he landed a librarian job with Audubon and his diligence, acumen, and communication skills allowed him to take more and more responsibilities. He became one of the youngest Audubon sanctuary directors ever appointed, and he was also able to secure a fellowship through Cornell to work on Roseate Spoonbills (Platalea ajaja). Audubon later appointed him to lead their Whooping Crane (Grus americana) studies.

  20. From the IGY to the IHY: A Changing View of the Van Allen Radiation Belts

    Science.gov (United States)

    Hudson, M. K.

    2006-12-01

    Discovery of the Van Allen radiation belts by instrumentation flown on Explorer 1 in 1958 was the first major discovery of the Space Age. A view of the belts as static inner and outer zones of energetic particles with different sources, a double-doughnut encircling the Earth, became iconic to the point that their dynamic behavior and solar connection receded from public awareness and apparent scientific import. Then the Cycle 23 maximum in solar activity arrived in 1989-1991, the first approaching the activity level of the International Geophysical Year of 1957-58, when the Van Allen belts were first discovered. Delay in launch of the NASA-Air Force Combined Radiation Release and Effects Satellite, following the Challenger accident in 1986, led to having the right instruments in the right orbit at the right time to detect prompt injection of outer belt electrons and solar energetic protons into the `slot region' between the inner and outer belts, forming new trapped populations which lasted for years in an otherwise benign location. This event in March 1991, along with the great geomagnetic storm of March 1989, and our increased dependence on space technology since the early Explorer days, led to a resurgence of interest in the Van Allen radiation belts and understanding of their connectivity to the Sun. Additional instrumentation from NASA's International Solar Terrestrial Physics Program, the Solar Anomalous and Magnetospheric Particle Explorer (SAMPEX) and IMAGE spacecraft from the Explorer program, NOAA and DOD spacecraft, and improved worldwide linkages of groundbased measurements have contributed much since 1991 to our understanding of the dynamic characteristics of the Van Allen belts. Further, the presence of continuous solar wind measurements beginning with the launch of WIND in 1994, and SOHO images of Coronal Mass Ejections and coronal hole sources of high speed solar wind flow have filled in the connection with solar activity qualitatively anticipated

  1. Crystallization and Preliminary X-ray Analysis of Allene Oxide Synthase, Cytochrome P450 CYP74A2, from Parthenium argentatum

    Science.gov (United States)

    Oxylipins are oxygenated derivatives of fatty acids and pivotal signaling molecules in plants and animals. Allene oxide synthase (AOS) is a key cytochrome P450 CYP74 enzyme involved in the biosynthesis of plant oxylipin jasmonates to convert 13(S)-hydroperoxide to allene oxide. Guayule (Parthenium a...

  2. Estudo da resistência do tendão do supra-espinal com pontos simples, duplos e Mason Allen Study on the resistance of the supraspinous tendon using simple, matress and mason allen stitches

    Directory of Open Access Journals (Sweden)

    Roberto Yukio Ikemoto

    2010-01-01

    Full Text Available OBJETIVO: O objetivo do trabalho foi comparar a resistência entre os pontos simples, duplo e Mason-Allen modificado, utilizados para o reparo do manguito rotador, e verificar se há diferença significativa que justifique a utilização do ponto do tipo Mason-Allen modificado ao invés dos pontos simples ou duplo. MÉTODO: Retiramos tendões do músculo supra-espinal de 15 cadáveres humanos frescos (30 ombros, com a média de idade de 45 anos. Os testes foram realizados na máquina universal de ensaio mecânico Kratos® 500/2000 e os resultados submetidos aos testes estatísticos de t-student, análise de variância (ANOVA, comparação múltipla de Bonferroni e calculadas as correlações de Pearson. Os testes foram realizados ao nível de significância de 5%. RESULTADOS: Não houve diferença significativa com relação à idade, ao tamanho das amostras e deslocamento do tendão. A resistência variou com média de 127,50 N com o ponto simples, 163,95 N com o duplo e com o ponto de Mason-Allen modificado esta foi de 198,45 N. CONCLUSÃO: não existe diferença da resistência no tendão quanto à falha na interface sutura - tendão comparando-se o ponto duplo com o Mason-Allen modificado e os pontos simples e duplo, porém há diferença quando comparados os pontos simples e Mason-Allen modificado.OBJECTIVE: The purpose of this study was to compare the rotator cuff tendon resistance at the interface tendon-suture using three different sorts of stitches (simple, mattress and modified Mason-Allen. METHODS: To do this, 30 rotator cuffs were totally dissected from 15 specimens, which were 45 years old on average. The tests were done using a Kratos® 500/2000 machine and the statistical analyses applied were the Student t-test, ANOVA test, Multiple Bonferroni Comparison, and Pearson's correlation coefficients; all the analyses used a significance level of 5%. RESULTS: No significant difference was observed regarding the age, sample sizes and

  3. Comparison of species-resolved energy spectra from ACE EPAM and Van Allen Probes RBSPICE

    Science.gov (United States)

    Patterson, J.; Manweiler, J. W.; Armstrong, T. P.; Lanzerotti, L. J.; Gerrard, A. J.; Gkioulidou, M.

    2013-12-01

    We present a comparison between energy spectra measured by the Advanced Composition Explorer (ACE) Electron Proton Alpha Monitor (EPAM) instrument and the Van Allen Probe Ion Composition Experiment (RBSPICE) for two significant and distinct events in early 2013. The first is an impulsive solar particle event on March 17th. While intense, this event presented no significant surprises in terms of its composition or anisotropy characteristics, thus providing a good baseline for response of the trapped radiation belts as observed by the Van Allen Probes. The second solar event occurred late May 22nd and early May 23rd. This event has a much greater concentration of medium and heavy ions than the St. Patrick's Day event, as well as having very peculiar energy spectra with evidence of two distinct populations. During the St. Patrick's Day Event, the energy spectra for helium, carbon, oxygen, neon, silicon, and iron all show the same spectral power law slope -3.1. The event shows strong anisotropy with intensities differing by a factor of four for both protons and Z>1 ions. The late May event also has strong anisotropy, and in the same directions as the St. Patrick's Day Event, but with very different composition and energy spectra. The spectra are much harder with power law spectral slopes of -0.5. Additionally, there is a significant spectral bump at 3 MeV/nuc for helium that is not present in the spectra of the heavier ions. The intensities of the heavier ions, however, show an increase that is an order of magnitude greater than the increase seen for helium. The March 17 RBSPICE observations show multiple injection events lasting for less than an hour each during the Van Allen Probes B apogees. These injections are seen in protons as well as Helium and only somewhat observed in Oxygen. Spectral slopes for the observations range from approximately -5 during quiet times to double peaked events with a spectral slope of approximately -2 at the beginning of the injection

  4. An allene-doped liquid argon ionization chamber for Ar and Ca ions at around 100 MeV/n

    CERN Document Server

    Yunoki, A; Fukuda, N; Kase, M; Kato, T; Kikuchi, J; Masuda, K; Niimura, M; Okada, H; Ozaki, K; Piao, Y; Shibamura, E; Tanaka, M; Tanihata, I; Terasawa, K

    1999-01-01

    An allene-doped liquid argon ionization chamber with 48 mmx48 mmx40 mm sensitive volume has been constructed for precise energy measurement of heavy ions at around 100 MeV/n. An energy resolution of 0.6%-0.7% (FWHM) was achieved for Ca and Ar ions both at 78 MeV/n. (author)

  5. John W. Allen 《I like to be associated with winners and China tops the list》

    Institute of Scientific and Technical Information of China (English)

    JESSY ZHANG

    2006-01-01

    @@ John Allen defines himself as a global entrepreneur, active in private and public areas. As Chairman and CEO of Greater China Corporation (GCC), a public company based in New York City,he is involved in acquiring and building businesses relating to China's economic growth.

  6. Convection Electric Field Observations by THEMIS and the Van Allen Probes

    Science.gov (United States)

    Califf, S.; Li, X.; Bonnell, J. W.; Wygant, J. R.; Malaspina, D.; Hartinger, M.; Thaller, S. A.

    2013-12-01

    We present direct electric field measurements made by THEMIS and the Van Allen Probes in the inner magnetosphere, focusing on the large-scale, near-DC convection electric field. The convection electric field drives plasma Earthward from the tail into the inner magnetosphere, playing a critical role in forming the ring current. Although it is normally shielded deep inside the magnetosphere, during storm times this large-scale electric field can penetrate to low L values (L mechanism for ~100 keV electron injection into the slot region and inner radiation belt. The relationship of the convection electric field with the plasmasphere is also important for understanding the dynamic outer radiation belt, as the plasmapause boundary has been strongly correlated with the dynamic variation of the outer radiation belt electrons.

  7. Five Years of SETI with the Allen Telescope Array: Lessons Learned

    Science.gov (United States)

    Harp, Gerald

    2016-01-01

    We discuss recent observations at the Allen Telescope Array (ATA) supporting a wide ranging Search for Extraterrestrial Intelligence (SETI). The ATA supports observations over the frequency range 1-10 GHz with three simultaneous phased array beams used in an anticoincidence detector for false positive rejection. Here we summarize observational results over the years 2011-2015 covering multiple campaigns of exoplanet stars, the galactic plane, infrared excess targets, etc. Approximately 2 x 108 signals were identified and classified over more than 5000 hours of observation. From these results we consider various approaches to the rapid identification of human generated interference in the process of the search for a signal with origins outside the radius of the Moon's orbit. We conclude that the multi-beam technique is superb tool for answering the very difficult question of the direction of origin of signals. Data-based simulations of future instruments with more than 3 beams are compared.

  8. Van Allen Probes observations of oxygen cyclotron harmonic waves in the inner magnetosphere

    Science.gov (United States)

    Usanova, M. E.; Malaspina, D. M.; Jaynes, A. N.; Bruder, R. J.; Mann, I. R.; Wygant, J. R.; Ergun, R. E.

    2016-09-01

    Waves with frequencies in the vicinity of the oxygen cyclotron frequency and its harmonics have been regularly observed on the Van Allen Probes satellites during geomagnetic storms. We focus on properties of these waves and present events from the main phase of two storms on 1 November 2012 and 17 March 2013 and associated dropouts of a few MeV electron fluxes. They are electromagnetic, in the frequency range ~0.5 to several Hz, and amplitude ~0.1 to a few nT in magnetic and ~0.1 to a few mV/m in electric field, with both the wave velocity and the Poynting vector directed almost parallel to the background magnetic field. These properties are very similar to those of electromagnetic ion cyclotron waves, which are believed to contribute to loss of ring current ions and radiation belt electrons and therefore can be also important for inner magnetosphere dynamics.

  9. A new hadrosauroid (Dinosauria: Ornithopoda from the Allen Formation (Late Cretaceous of Patagonia, Argentina

    Directory of Open Access Journals (Sweden)

    Rubén D. Juárez Valieri

    2010-12-01

    Full Text Available A new hadrosauroid taxon from the Late Cretaceous Allen Formation is erected, on the basis of abundant cranial and postcranial material from the Salitral Moreno locality of the Rio Negro Province, Argentina. The new taxon is here named as Willinakaqe salitralensis gen. et sp. nov., which is characterized by having an autapomorphous premaxilla with a long and convex rostrolateral surface rostral to the narial fossa and associated postcrania developing an unique character combination, including: dorsal vertebrae with a shallow fossa upon the base of the transverse processes; sacral and proximal caudal neural spines more than three times the height of the centrum; distal region of the postacetabular process of ilium ventrally deflected, among others. This new hadrosauroid closely resembles Secernosaurus koerneri, the other valid hadrosauroid species from South America, based in several synapomorphies, as: angle greater than 115° between the lateral margin of the facet for scapular articulation and the glenoid in the coracoid; supra-acetabular process of the ilium asymmetrical, caudodorsal margin of ilium with a well-defined ridge continuous with the dorsal margin of the proximal region of the postacetabular process. Moreover, previous records of Lambeosaurinae from the Late Cretaceous of South America are referred to W. salitralensis, and thus, the presence of lambeosaurines in this continent is here rejected. Accordingly, Willinakaqe salitralensis gen. et sp. nov. is currently the only hadrosauroid species reported from the Allen Formation.Se erige un nuevo taxón de hadrosauroideo del Cretácico Superior de la Formación Allen, en base a abundante material craneal y postcraneal de la localidad de Salitral Moreno, en la Provincia de Río Negro, Argentina. El nuevo taxón es denominado Willinakaqe salitralensis gen. et sp. nov., y se caracteriza por tener un premaxilar autapomórfico con una superficie rostrolateral alargada y convexa rostral a la

  10. Fractional Cahn-Hilliard, Allen-Cahn and porous medium equations

    Science.gov (United States)

    Akagi, Goro; Schimperna, Giulio; Segatti, Antonio

    2016-09-01

    We introduce a fractional variant of the Cahn-Hilliard equation settled in a bounded domain Ω ⊂RN and complemented with homogeneous Dirichlet boundary conditions of solid type (i.e., imposed in the whole of RN ∖ Ω). After setting a proper functional framework, we prove existence and uniqueness of weak solutions to the related initial-boundary value problem. Then, we investigate some significant singular limits obtained as the order of either of the fractional Laplacians appearing in the equation is let tend to 0. In particular, we can rigorously prove that the fractional Allen-Cahn, fractional porous medium, and fractional fast-diffusion equations can be obtained in the limit. Finally, in the last part of the paper, we discuss existence and qualitative properties of stationary solutions of our problem and of its singular limits.

  11. George Herbert Mead and the Allen controversy at the University of Wisconsin.

    Science.gov (United States)

    Cook, Gary A

    2007-01-01

    This essay uses previously unpublished correspondence of George Herbert Mead to tell the story of his involvement in the aftermath of a political dispute that took place at the University of Wisconsin during the years 1914-1915. It seeks thereby to clarify the historical significance of an article he published on this controversy in late 1915. Taken together with relevant information about the educational activities of William H. Allen of the New York Bureau of Municipal Research, Mead's correspondence and article throw helpful light upon his understanding of how an educational survey of a university should proceed; they also show how he went about the task of evaluating a failed attempt at such a survey. PMID:17205543

  12. Electron dropout echoes induced by interplanetary shock: Van Allen Probes observations

    Science.gov (United States)

    Hao, Y. X.; Zong, Q.-G.; Zhou, X.-Z.; Fu, S. Y.; Rankin, R.; Yuan, C.-J.; Lui, A. T. Y.; Spence, H. E.; Blake, J. B.; Baker, D. N.; Reeves, G. D.

    2016-06-01

    On 23 November 2012, a sudden dropout of the relativistic electron flux was observed after an interplanetary shock arrival. The dropout peaks at ˜1 MeV and more than 80% of the electrons disappeared from the drift shell. Van Allen twin Probes observed a sharp electron flux dropout with clear energy dispersion signals. The repeating flux dropout and recovery signatures, or "dropout echoes", constitute a new phenomenon referred to as a "drifting electron dropout" with a limited initial spatial range. The azimuthal range of the dropout is estimated to be on the duskside, from ˜1300 to 0100 LT. We conclude that the shock-induced electron dropout is not caused by the magnetopause shadowing. The dropout and consequent echoes suggest that the radial migration of relativistic electrons is induced by the strong dusk-dawn asymmetric interplanetary shock compression on the magnetosphere.

  13. Real-time beamforming using high-speed FPGAs at the Allen Telescope Array

    Science.gov (United States)

    Barott, William C.; Milgrome, Oren; Wright, Melvyn; MacMahon, David; Kilsdonk, Tom; Backus, Peter; Dexter, Matt

    2011-02-01

    The Allen Telescope Array (ATA) at the Hat Creek Radio Observatory (HCRO) is a wide-field panchromatic radio telescope currently consisting of 42 offset-Gregorian antennas each with a 6 m aperture, with plans to expand the array to 350 antennas. Through unique back-end hardware, the ATA performs real-time wideband beamforming with independent subarray capabilities and customizable beam shaping. The beamformers enable science observations requiring the full gain of the array, time domain (nonintegrated) output, and interference excision or orthogonal beamsets. In this paper we report on the design of this beamformer, including architecture and experimental results. Furthermore, we address some practical considerations in large-N wideband beamformers implemented on field programmable gate array platforms, including device utilization, methods of calibration and control, and interchip synchronization.

  14. Inner zone electron radial diffusion coefficients - An update with Van Allen Probes MagEIS data

    Science.gov (United States)

    O'Brien, Paul; Fennell, Joseph; Guild, Timothy; Mazur, Joseph; Claudepierre, Seth; Clemmons, James; Turner, Drew; Blake, Bernard; Roeder, James

    2016-07-01

    Using MagEIS data from NASA's recent Van Allen Probes mission, we estimate the quiet-time radial diffusion coefficients for electrons in the inner radiation belt and slot, for energies up to ~700 keV. We provide observational evidence that energy diffusion is negligible. The main dynamic processes, then, are radial diffusion and elastic pitch angle scattering. We use a coordinate system in which these two modes of diffusion are separable. Then we integrate over pitch angle to obtain a field line content whose dynamics consist of radial diffusion and loss to the atmosphere. We estimate the loss timescale from periods of exponential decay in the time series. We then estimate the radial diffusion coefficient from the temporal and radial variation of the field line content. We show that our diffusion coefficients agree well with previously determined values. Our coefficients are consistent with diffusion by electrostatic impulses, whereas outer zone radial diffusion is thought to be dominated by electromagnetic fluctuations.

  15. Evidence for Nonlinear VLF Wave Physics from Van Allen Probe Data

    Science.gov (United States)

    Crabtree, C. E.; Tejero, E. M.; Ganguli, G.; Hospodarsky, G. B.; Kletzing, C.

    2015-12-01

    VLF waves in the whistler mode branch in the Earth's radiation belts play a critical role in both the acceleration and loss of energetic electrons. VLF waves are often observed with magnetic field amplitudes that are a significant fraction of the background magnetic field suggesting that nonlinear effects may be important. We develop new Bayesian time-series analysis tools to investigate magnetic and electric field data from the EMFISIS instrument on board the Van Allen Probes. We also validate the analysis techniques through laboratory experiments. We apply these tools to Chorus waves to show that the picture of a single coherent plane wave is insufficient to explain EMFISIS data and that nonlinear collective wave interactions play an important role in moderating Chorus wave growth. We also apply these techniques to show that nonlinear induced scattering by thermal electrons can play a significant role in controlling the propagation of large amplitude lightning generated whistlers inside the plasmasphere.

  16. Variability of the Inner Proton Radiation Belt Observed by Van Allen Probes

    Science.gov (United States)

    Li, X.; Selesnick, R.; Baker, D. N.; Jaynes, A. N.; Kanekal, S. G.; Hudson, M. K.; Kress, B. T.

    2015-12-01

    Inner radiation belt protons with kinetic energy above 10 MeV are known to be highly stable, with a maximum intensity near L = 1.5 that varies little evenon solar-cycle time scales. However, for L = 2 and above, more rapid changes occur: (1) protons are trapped during solar particle events, (2) steady intensity changes near L = 2 may result from radial diffusion, (3) for L > 2 there are rapid losses during magnetic storms, and (4) the losses are replenished by albedo neutron decay. New measurements from Van Allen Probes describe each of the last three processes in detail (the first has not yet been observed). These data provide new constraints on theories of trapped proton dynamics and improved empirical estimates of transport coefficients for radiation belt modeling.

  17. Linolenate 9R-dioxygenase and allene oxide synthase activities of Lasiodiplodia theobromae.

    Science.gov (United States)

    Jernerén, Fredrik; Eng, Felipe; Hamberg, Mats; Oliw, Ernst H

    2012-01-01

    Jasmonic acid (JA) is synthesized from linolenic acid (18:3n-3) by sequential action of 13-lipoxygenase, allene oxide synthase (AOS), and allene oxide cyclase. The fungus Lasiodiplodia theobromae can produce large amounts of JA and was recently reported to form the JA precursor 12-oxophytodienoic acid. The objective of our study was to characterize the fatty acid dioxygenase activities of this fungus. Two strains of L. theobromae with low JA secretion (~0.2 mg/L medium) oxygenated 18:3n-3 to 5,8-dihydroxy-9Z,12Z,15Z-octadecatrienoic acid as well as 9R-hydroperoxy-10E,12Z,15Z-octadecatrienoic acid, which was metabolized by an AOS activity into 9-hydroxy-10-oxo-12Z,15Z-octadecadienoic acid. Analogous conversions were observed with linoleic acid (18:2n-6). Studies using [11S-(2)H]18:2n-6 revealed that the putative 9R-dioxygenase catalyzed stereospecific removal of the 11R hydrogen followed by suprafacial attack of dioxygen at C-9. Mycelia from these strains of L. theobromae contained 18:2n-6 as the major polyunsaturated acid but lacked 18:3n-3. A third strain with a high secretion of JA (~200 mg/L) contained 18:3n-3 as a major fatty acid and produced 5,8-dihydroxy-9Z,12Z,15Z-octadecatrienoic acid from added 18:3n-3. This strain also lacked the JA biosynthetic enzymes present in higher plants. PMID:22048860

  18. Van Allen Probes Mission Space Academy: Educating middle school students about Earth's mysterious radiation belts

    Science.gov (United States)

    Butler, L.; Turney, D.; Matiella Novak, A.; Smith, D.; Simon, M.

    2013-12-01

    How's the weather in space? Why on Earth did NASA send two satellites above Earth to study radiation belts and space weather? To learn the answer to questions about NASA's Van Allen Probes mission, 450 students and their teachers from Maryland middle schools attended Space Academy events highlighting the Van Allen Probes mission. Sponsored by the Applied Physics Laboratory (APL) and Discovery Education, the events are held at the APL campus in Laurel, MD. Space Academies take students and teachers on behind-the-scenes exploration of how spacecraft are built, what they are designed to study, and introduces them to the many professionals that work together to create some of NASA's most exciting projects. Moderated by a public relations representative in the format of an official NASA press conference, the daylong event includes a student press conference with students as reporters and mission experts as panelists. Lunch with mission team members gives students a chance to ask more questions. After lunch, students don souvenir clean room suits, enjoy interactive science demonstrations, and tour APL facilities where the Van Allen Probes were built and tested before launch. Students may even have an opportunity to peek inside a clean room to view spacecraft being assembled. Prior to the event, teachers are provided with classroom activities, lesson plans, and videos developed by APL and Discovery Education to help prepare students for the featured mission. The activities are aligned to National Science Education Standards and appropriate for use in the classroom. Following their visit, student journalists are encouraged to write a short article about their field trip; selections are posted on the Space Academy web site. Designed to engage, inspire, and influence attitudes about space science and STEM careers, Space Academies provide an opportunity to attract underserved populations and emphasize that space science is for everyone. Exposing students to a diverse group of

  19. Molecular Cloning and Characterization of an Allene Oxide Cyclase Gene Associated with Fiber Strength in Cotton

    Institute of Scientific and Technical Information of China (English)

    WANG Li-man; ZHU You-min; TONG Xiang-chao; HU Wen-jing; CAI Cai-ping; GUO Wang-zhen

    2014-01-01

    Allene oxide cyclase (AOC) is one of the most important enzymes in the biosynthetic pathway of the plant hormone jasmonic acid (JA). AOC catalyzes the conversion of allene oxide into 12-oxo-phytodienoic acid (OPDA), a precursor of JA. Using 28K cotton genome array hybridization, an expressed sequence tag (EST;GenBank accession no. ES792958) was investigated that exhibited signiifcant expression differences between lintless-fuzzless XinWX and linted-fuzzless XinFLM isogenic lines during ifber initiation stages. The EST was used to search the Gossypium EST database (http://www.ncbi.nlm.nih.gov/) for corresponding cDNA sequences encoding full-length open reading frames (ORFs). Identiifed ORFs were conifrmed using transcriptional and genomic data. As a result, a novel gene encoding AOC in cotton (Gossypium hirsutum AOC;GenBank accession no. KF383427) was cloned and characterized. The 741-bp GhAOC gene comprises three exons and two introns and encodes a polypeptide of 246 amino acids. Two homologous copies were identiifed in the tetraploid cotton species G. hirsutum acc. TM-1 and G. barbadense cv. Hai7124, and one copy in the diploid cotton species G. herbaceum and G. raimondii. qRT-PCR showed that the GhAOC transcript was abundant in cotton ifber tissues from 8 to 23 days post anthesis (DPA), and the expression proifles were similar in the two cultivated tetraploid cotton species G. hirsutum acc. TM-1 and G. barbadense cv. Hai7124, with a higher level of transcription in the former. One copy of GhAOC in tetraploid cotton was localized to chromosome 24 (Chr. D8) using the subgenome-speciifc single nucleotide polymorphism (SNP) marker analysis, which co-localized GhAOC to within 10 cM of a ifber strength quantitative trait locus (QTL) reported previously. GhAOC was highly correlated with ifber quality and strength (P=0.014) in an association analysis, suggesting a possible role in cotton ifber development, especially in secondary cell wall thickening.

  20. Chiroptical Properties and the Racemization of Pyrene and Tetrathiafulvalene-Substituted Allene: Substitution and Solvent Effects on Racemization in Tetrathiafulvalenylallene

    Directory of Open Access Journals (Sweden)

    Masashi Hasegawa

    2014-03-01

    Full Text Available Dissymmetric 1,3-diphenylallene derivative 3 connected with 4,5-bis(methyl-thiotetrathiafulvalenyl and 1-pyrenyl substituents was prepared and characterized. The molecular structure was determined by X-ray crystallographic analysis. Optical resolution was accomplished using a recycling chiral HPLC, and its chiroptical properties were examined with optical rotation and electronic circular dichroism (ECD spectra. The title compound underwent photoracemization under daylight. This behavior was investigated in various solvents and compared with that of 1,3-bis(tetrathiafulvalenylallene (bis-TTF-allene derivative 2. The first-order rate plot of the intensity of the ECD spectra at a given time interval gave the rate of racemization. Mild racemization was observed in polar solvents, whereas a relatively fast rate was obtained in less polar solvents. In addition, the TTF groups of the allene also accelerate the racemization rate. These results suggest that the racemization mechanism occurs via a non-polar diradical structure.

  1. A comparison of flash electroretinograms recorded from Burian Allen, JET, C-glide, gold foil, DTL and skin electrodes.

    Science.gov (United States)

    Esakowitz, L; Kriss, A; Shawkat, F

    1993-01-01

    Single flash scotopic and photopic electroretinograms (ERGs) were recorded from the same subjects using six types of corneal electrode, in order to assess their relative effectiveness. In addition, the ERG from a lower eyelid skin electrode was recorded to give an indication of the degree of attenuation to be expected from a skin electrode. On average, the scotopic ERG recorded from the Burian Allen electrode measured 471 microV (100%), and relative to this the b-waves recorded using other electrodes were as follows: JET (89%), C-glide (77%), gold foil (56%), DTL (46%) and skin (12%). Under photopic conditions the order was the same and the interelectrode proportions similar. The b-wave amplitude recorded using the Burian Allen electrode was 125 microV (100%), and with other electrodes was as follows: JET (93%), C-glide (78%), gold foil (60%), DTL (60%) and skin (14%).

  2. Allen's big-eared bat (Idionycteris phyllotis) documented in colorado based on recordings of its distinctive echolocation call

    Science.gov (United States)

    Hayes, M.A.; Navo, K.W.; Bonewell, L.; Mosch, C.J.; Adams, R.A.

    2009-01-01

    Allen's big-eared bat (Idionycteris phyllotis) inhabits much of the southwestern USA, but has not been documented in Colorado. We recorded echolocation calls consistent with I. phyllotis near La Sal Creek, Montrose County, Colorado. Based on characteristics of echolocation calls and flight behavior, we conclude that the echolocation calls described here were emitted by I. phyllotis and that they represent the first documentation of this species in Colorado.

  3. Observation of chorus waves by the Van Allen Probes: Dependence on solar wind parameters and scale size

    Science.gov (United States)

    Aryan, Homayon; Sibeck, David; Balikhin, Michael; Agapitov, Oleksiy; Kletzing, Craig

    2016-08-01

    Highly energetic electrons in the Earth's Van Allen radiation belts can cause serious damage to spacecraft electronic systems and affect the atmospheric composition if they precipitate into the upper atmosphere. Whistler mode chorus waves have attracted significant attention in recent decades for their crucial role in the acceleration and loss of energetic electrons that ultimately change the dynamics of the radiation belts. The distribution of these waves in the inner magnetosphere is commonly presented as a function of geomagnetic activity. However, geomagnetic indices are nonspecific parameters that are compiled from imperfectly covered ground based measurements. The present study uses wave data from the two Van Allen Probes to present the distribution of lower band chorus waves not only as functions of single geomagnetic index and solar wind parameters but also as functions of combined parameters. Also the current study takes advantage of the unique equatorial orbit of the Van Allen Probes to estimate the average scale size of chorus wave packets, during close separations between the two spacecraft, as a function of radial distance, magnetic latitude, and geomagnetic activity, respectively. Results show that the average scale size of chorus wave packets is approximately 1300-2300 km. The results also show that the inclusion of combined parameters can provide better representation of the chorus wave distributions in the inner magnetosphere and therefore can further improve our knowledge of the acceleration and loss of radiation belt electrons.

  4. Improved lattice Boltzmann modeling of binary flow based on the conservative Allen-Cahn equation

    Science.gov (United States)

    Ren, Feng; Song, Baowei; Sukop, Michael C.; Hu, Haibao

    2016-08-01

    The primary and key task of binary fluid flow modeling is to track the interface with good accuracy, which is usually challenging due to the sharp-interface limit and numerical dispersion. This article concentrates on further development of the conservative Allen-Cahn equation (ACE) [Geier et al., Phys. Rev. E 91, 063309 (2015), 10.1103/PhysRevE.91.063309] under the framework of the lattice Boltzmann method (LBM), with incorporation of the incompressible hydrodynamic equations [Liang et al., Phys. Rev. E 89, 053320 (2014), 10.1103/PhysRevE.89.053320]. Utilizing a modified equilibrium distribution function and an additional source term, this model is capable of correctly recovering the conservative ACE through the Chapman-Enskog analysis. We also simulate four phase-tracking benchmark cases, including one three-dimensional case; all show good accuracy as well as low numerical dispersion. By coupling the incompressible hydrodynamic equations, we also simulate layered Poiseuille flow and the Rayleigh-Taylor instability, illustrating satisfying performance in dealing with complex flow problems, e.g., high viscosity ratio, high density ratio, and high Reynolds number situations. The present work provides a reliable and efficient solution for binary flow modeling.

  5. Statistical Features of EMIC Waves Observed on Van Allen Probes in the Inner Magnetosphere

    Science.gov (United States)

    Lee, D. Y.; Roh, S. J.; Cho, J.; Shin, D. K.; Hwang, J.; Kim, K. C.; Kurth, W. S.; Kletzing, C.; Wygant, J. R.; Thaller, S. A.

    2015-12-01

    Electromagnetic ion cyclotron (EMIC) waves are one of the key plasma waves that can affect charged particle dynamics in the Earth's inner magnetosphere. Knowledge of global distribution of the EMIC waves is critical for accurately assessing the significance of its interaction with charged particles. With the Van Allen Probes EMFISIS observations, we have surveyed EMIC events for ~2.5 years period. We have identified well-defined, banded wave activities only, as distinguished from broad band wave activities. We have obtained global distribution of occurrence of the identified waves with distinction between H- and He-bands. We compare it with previous observations such as THEMIS and CRRES. For the identified events we have drawn all the basic wave properties including wave frequency, polarization, wave normal angle. In addition, we have distinguished the EMIC events that occur inside the plasmasphere and at the plasmapause from those outside the plasmasphere. Finally, we have tested solar wind and geomagnetic dependence of the wave events. We give discussions about implications of these observations on wave generation mechanism and interaction with radiation belt electrons.

  6. Van Allen Probes observations of EMIC events triggered by solar wind dynamic pressure enhancements

    Science.gov (United States)

    Lee, D. Y.; Cho, J.; Roh, S. J.; Shin, D. K.; Hwang, J.; Kim, K. C.; Choi, C.; Kletzing, C.; Wygant, J. R.; Thaller, S. A.; Larsen, B.; Skoug, R. M.

    2015-12-01

    Electromagnetic ion cyclotron (EMIC) waves are one of the key plasma waves that can affect charged particle dynamics in the Earth's inner magnetosphere. One of the generation mechanisms of EMIC waves has long been known to be due to magnetospheric compression due to impact by enhanced solar wind dynamic pressure Pdyn. With the Van Allen Probes observations, we have identified 4 EMIC wave events that are triggered by Pdyn enhancements under northward IMF, prolonged quiet time conditions. We find the following features of the EMIC events. (1) They are triggered immediately at the Pdyn impact and remain active during the same period as the enhanced Pdyn duration. (2) They occur in either H band or He band or both. (3) Two events occur inside the plasmasphere and the other two outside the plasmasphere. (4) The wave polarization, either R or L, are highly elliptical, being close to be linear. (5) The wave normal angles are quite large, well away from being field-aligned. (6) About 10 - 50 keV proton fluxes indicate enhanced flux state with ~90 deg-peaked anisotropy in velocity distribution after the Pdyn impact. (7) From low altitude NOAA POES satellite observations of particles we find no obvious evidence for relativistic electron precipitation due to these Pdyn-triggered EMIC events. We will discuss implications of these observations on wave generation mechanism and interaction with radiation belt electrons.

  7. Activity Regulation by Heteromerization of Arabidopsis Allene Oxide Cyclase Family Members

    Directory of Open Access Journals (Sweden)

    Markus Otto

    2016-01-01

    Full Text Available Jasmonates (JAs are lipid-derived signals in plant stress responses and development. A crucial step in JA biosynthesis is catalyzed by allene oxide cyclase (AOC. Four genes encoding functional AOCs (AOC1, AOC2, AOC3 and AOC4 have been characterized for Arabidopsis thaliana in terms of organ- and tissue-specific expression, mutant phenotypes, promoter activities and initial in vivo protein interaction studies suggesting functional redundancy and diversification, including first hints at enzyme activity control by protein-protein interaction. Here, these analyses were extended by detailed analysis of recombinant proteins produced in Escherichia coli. Treatment of purified AOC2 with SDS at different temperatures, chemical cross-linking experiments and protein structure analysis by molecular modelling approaches were performed. Several salt bridges between monomers and a hydrophobic core within the AOC2 trimer were identified and functionally proven by site-directed mutagenesis. The data obtained showed that AOC2 acts as a trimer. Finally, AOC activity was determined in heteromers formed by pairwise combinations of the four AOC isoforms. The highest activities were found for heteromers containing AOC4 + AOC1 and AOC4 + AOC2, respectively. All data are in line with an enzyme activity control of all four AOCs by heteromerization, thereby supporting a putative fine-tuning in JA formation by various regulatory principles.

  8. Activity Regulation by Heteromerization of Arabidopsis Allene Oxide Cyclase Family Members.

    Science.gov (United States)

    Otto, Markus; Naumann, Christin; Brandt, Wolfgang; Wasternack, Claus; Hause, Bettina

    2016-01-01

    Jasmonates (JAs) are lipid-derived signals in plant stress responses and development. A crucial step in JA biosynthesis is catalyzed by allene oxide cyclase (AOC). Four genes encoding functional AOCs (AOC1, AOC2, AOC3 and AOC4) have been characterized for Arabidopsis thaliana in terms of organ- and tissue-specific expression, mutant phenotypes, promoter activities and initial in vivo protein interaction studies suggesting functional redundancy and diversification, including first hints at enzyme activity control by protein-protein interaction. Here, these analyses were extended by detailed analysis of recombinant proteins produced in Escherichia coli. Treatment of purified AOC2 with SDS at different temperatures, chemical cross-linking experiments and protein structure analysis by molecular modelling approaches were performed. Several salt bridges between monomers and a hydrophobic core within the AOC2 trimer were identified and functionally proven by site-directed mutagenesis. The data obtained showed that AOC2 acts as a trimer. Finally, AOC activity was determined in heteromers formed by pairwise combinations of the four AOC isoforms. The highest activities were found for heteromers containing AOC4 + AOC1 and AOC4 + AOC2, respectively. All data are in line with an enzyme activity control of all four AOCs by heteromerization, thereby supporting a putative fine-tuning in JA formation by various regulatory principles. PMID:27135223

  9. Evolution of chorus emissions into plasmaspheric hiss observed by Van Allen Probes

    Science.gov (United States)

    Zhou, Qinghua; Xiao, Fuliang; Yang, Chang; Liu, Si; He, Yihua; Wygant, J. R.; Baker, D. N.; Spence, H. E.; Reeves, G. D.; Funsten, H. O.

    2016-05-01

    The two classes of whistler mode waves (chorus and hiss) play different roles in the dynamics of radiation belt energetic electrons. Chorus can efficiently accelerate energetic electrons, and hiss is responsible for the loss of energetic electrons. Previous studies have proposed that chorus is the source of plasmaspheric hiss, but this still requires an observational confirmation because the previously observed chorus and hiss emissions were not in the same frequency range in the same time. Here we report simultaneous observations form Van Allen Probes that chorus and hiss emissions occurred in the same range ˜300-1500 Hz with the peak wave power density about 10-5 nT2/Hz during a weak storm on 3 July 2014. Chorus emissions propagate in a broad region outside the plasmapause. Meanwhile, hiss emissions are confined inside the plasmasphere, with a higher intensity and a broader area at a lower frequency. A sum of bi-Maxwellian distribution is used to model the observed anisotropic electron distributions and to evaluate the instability of waves. A three-dimensional ray tracing simulation shows that a portion of chorus emission outside the plasmasphere can propagate into the plasmasphere and evolve into plasmaspheric hiss. Moreover, hiss waves below 1 kHz are more intense and propagate over a broader area than those above 1 kHz, consistent with the observation. The current results can explain distributions of the observed hiss emission and provide a further support for the mechanism of evolution of chorus into hiss emissions.

  10. Explaining the dynamics of the ultra-relativistic third Van Allen radiation belt

    Science.gov (United States)

    Mann, I. R.; Ozeke, L. G.; Murphy, K. R.; Claudepierre, S. G.; Turner, D. L.; Baker, D. N.; Rae, I. J.; Kale, A.; Milling, D. K.; Boyd, A. J.; Spence, H. E.; Reeves, G. D.; Singer, H. J.; Dimitrakoudis, S.; Daglis, I. A.; Honary, F.

    2016-10-01

    Since the discovery of the Van Allen radiation belts over 50 years ago, an explanation for their complete dynamics has remained elusive. Especially challenging is understanding the recently discovered ultra-relativistic third electron radiation belt. Current theory asserts that loss in the heart of the outer belt, essential to the formation of the third belt, must be controlled by high-frequency plasma wave-particle scattering into the atmosphere, via whistler mode chorus, plasmaspheric hiss, or electromagnetic ion cyclotron waves. However, this has failed to accurately reproduce the third belt. Using a data-driven, time-dependent specification of ultra-low-frequency (ULF) waves we show for the first time how the third radiation belt is established as a simple, elegant consequence of storm-time extremely fast outward ULF wave transport. High-frequency wave-particle scattering loss into the atmosphere is not needed in this case. When rapid ULF wave transport coupled to a dynamic boundary is accurately specified, the sensitive dynamics controlling the enigmatic ultra-relativistic third radiation belt are naturally explained.

  11. Charisma and Counterculture: Allen Ginsberg as a Prophet for a New Generation

    Directory of Open Access Journals (Sweden)

    Yaakov Ariel

    2013-01-01

    Full Text Available The cultural role of Allen Ginsberg does not fit a typical Weberian model of charisma. The avant-garde poet was an outstanding personality and possessed an unusual ability to affect people. He played a vital role in expanding the boundaries of personal freedom in America of the 1950s–1990s, blazing new paths for spiritual, communal and artistic expression. Serving as a father figure for the counterculture—a symbol of an alternative set of cultural norms, lifestyles and literary forms—Ginsberg was a charismatic counter-leader, with no clearly defined followers or movement. As a leader in a more liberated era, he offered energy, ideas, inspiration, and color, but no structure or authority. Instead he was a prophet of freedom, calling on people to express themselves openly, to expand and experiment. This role demanded charisma but of a different kind—one that was more spiritual and less organizational or hierarchical. This article follows Gary Dickson’s essay “Charisma, Medieval and Modern,” in offering a suggestive analysis of and supplement to Weber’s understanding of charisma. The article grapples with the concept of charisma in relation to a generation that resented rigid structures and authorities.

  12. Commensal observing with the Allen Telescope array: software command and control

    CERN Document Server

    Gutierrez-Kraybill, Colby; MacMahon, David; Williams, Peter K G; Harp, Gerald; Ackermann, Robert; Kilsdonk, Tom; Richards, Jon; Barott, William C; 10.1117/12.857860

    2010-01-01

    The Allen Telescope Array (ATA) is a Large-Number-Small-Diameter radio telescope array currently with 42 individual antennas and 5 independent back-end science systems (2 imaging FX correlators and 3 time domain beam formers) located at the Hat Creek Radio Observatory (HCRO). The goal of the ATA is to run multiple back-ends simultaneously, supporting multiple science projects commensally. The primary software control systems are based on a combination of Java, JRuby and Ruby on Rails. The primary control API is simplified to provide easy integration with new back-end systems while the lower layers of the software stack are handled by a master observing system. Scheduling observations for the ATA is based on finding a union between the science needs of multiple projects and automatically determining an efficient path to operating the various sub-components to meet those needs. When completed, the ATA is expected to be a world-class radio telescope, combining dedicated SETI projects with numerous radio astronom...

  13. Estimates of trapped radiation encountered on low-thrust trajectories through the Van Allen belts

    Science.gov (United States)

    Karp, I. M.

    1973-01-01

    Estimates were made of the number of trapped protons and electrons encountered by vehicles on low-thrust trajectories through the Van Allen belts. The estimates serve as a first step in assessing whether these radiations present a problem to on-board sensitive components and payload. The integrated proton spectra and electron spectra are presented for the case of a trajectory described by a vehicle with a constant-thrust acceleration A sub c equal to 0.001 meter/sq sec. This value of acceleration corresponds to a trip time of about 54 days from low earth orbit to synchronous orbit. It is shown that the time spent in the belts and hence the radiation encountered vary nearly inversely with the value of thrust acceleration. Thus, the integrated spectral values presented for the case of A sub c = 0.001 meter/sq sec can be generalized for any other value of thrust acceleration by multiplying them by the factor 0.001/A sub c.

  14. Hydrogeochemical and stream sediment reconnaissance basic data for Brownsville-McAllen NTMS Quadrangles, Texas

    International Nuclear Information System (INIS)

    Results of a reconnaissance geochemical survey of the Brownsville-McAllen Quadrangles, Texas are reported. Field and laboratory data are presented for 427 groundwater and 171 stream sediment samples. Statistical and areal distributions of uranium and possible uranium-related variables are displayed. Pertinent geologic factors which may be of significance in evaluating the potential for uranium mineralization are briefly discussed. Groundwater data indicate the most promising area for potential uranium mineralization occurs in the northwestern section of the quadrangles (Jim Hogg, Starr, and Zapata Counties), where waters are derived from the Catahoula Formation. These groundwaters have high concentrations of uranium, uranium associated elements, and low values for specific conductance. Another area with high uranium concentrations is in the southeastern portion of the survey area (Hidalgo, Cameron, and Willacy Counties). Shallow wells <10 m (30 ft) are numerous in this area and high specific conductance values may indicate contamination from extensive fertilization. Stream sediment data for the survey does not indicate an area favorable for uranium mineralization. Anomalous acid soluble uranium values in the southeastern area (Hidalgo, Cameron, and Willacy Counties) can be attributed to phosphate fertilizer contamination. Four samples in the western part of the area (western Starr County) have anomalously high total uranium values and low acid soluble uranium values, indicating the uranium may be contained in resistate minerals

  15. Suppression of allene oxide synthase 3 in potato increases degree of arbuscular mycorrhizal fungal colonization.

    Science.gov (United States)

    Morcillo, Rafael Jorge León; Navarrete, María Isabel Tamayo; Bote, Juan Antonio Ocampo; Monguio, Salomé Prat; García-Garrido, José Manuel

    2016-01-15

    Arbuscular mycorrhizal (AM) is a mutually beneficial interaction among higher plants and soil fungi of the phylum Glomeromycota. Numerous studies have pointed that jasmonic acid plays an important role in the development of the intraradical fungus. This compound belongs to a group of biologically active compounds known as oxylipins which are derived from the oxidative metabolism of polyunsaturated fatty acids. Studies of the regulatory role played by oxylipins in AM colonization have generally focused on jasmonates, while few studies exist on the 9-LOX pathway of oxylipins during AM formation. Here, the cDNA of Allene oxide synthase 3 (AOS3), a key enzyme in the 9-LOX pathway, was used in the RNA interference (RNAi) system to transform potato plants in order to suppress its expression. Results show increases in AOS3 gene expression and 9-LOX products in roots of wild type potato mycorrhizal plants. The suppression of AOS3 gene expression increases the percentage of root with mycorrhizal colonization at early stages of AM formation. AOS3 RNA interference lead to an induction of LOXA and 13-LOX genes, a reduction in AOS3 derived 9-LOX oxylipin compounds and an increase in jasmonic acid content, suggesting compensation between 9 and 13-LOX pathways. The results in a whole support the hypothesis of a regulatory role for the 9-LOX oxylipin pathway during mycorrhization.

  16. ACE EPAM and Van Allen Probes RBSPICE measurements of interplanetary oxygen injection to the inner magnetosphere

    Science.gov (United States)

    Patterson, J. D.; Manweiler, J. W.; Gerrard, A. J.; Lanzerotti, L. J.

    2015-12-01

    On March 17, 2015, a significant oxygen-rich interplanetary event was measure by the Advanced Composition Explorer (ACE) Electron Proton Alpha Monitor (EPAM) instrument. At the same time the Van Allen Probes Radiation Belt Storm Probes Ion Composition Experiment (RBSPICE) instrument recorded significant enhancements of oxygen in the inner magnetosphere. We present a detailed analysis of this event utilizing a new method of exploiting the EPAM Pulse Height Analyzer (PHA) data to precisely resolve helium and oxygen spectra within the 0.5 to 5 MeV/nuc range. We also present the flux, partial particle pressures, and pitch angle distributions of the ion measurements from RBSPICE. During this event, both EPAM and RBSPICE measured O:He ratios greater than 10:1. The pitch angle distributions from RBSPICE-B show a strong beam of oxygen at an L ~ 5.8 early on March 17th during orbit. The timing between the observations of the oxygen peak at ACE and the beam observed at RBSPICE-B is consistent with the travel-time required for energetic particle transport from L1 to Earth and access to the magnetosphere. We assert that the oxygen seen by RBSPICE during the initial phase of this event is the result of direct injection from the interplanetary medium of energetic ions. This poster contains the observations and detailed calculations to support this assertion.

  17. Quasi-periodic Whistler Mode Waves Detected by the Van Allen Probes Spacecraft

    Science.gov (United States)

    Hospodarsky, G. B.; Santolik, O.; Nemec, F.; Kurth, W. S.; Kletzing, C.; Bounds, S. R.; Wygant, J. R.; Bonnell, J. W.

    2014-12-01

    Quasi-periodic (QP) whistler mode electromagnetic emissions have been detected in Earth's magnetosphere by the Electric and Magnetic Field Instrument Suite and Integrated Science (EMFISIS) Waves instrument. These emissions typically consist of intervals of enhanced wave power between a few hundred Hz to a few kHz with modulation periods on the order of minutes. These emissions are primarily observed on the dayside and detected between L shells of 3 to 6, though some events are observed down to L shells of ~2. EMFISIS simultaneously measures the vector wave magnetic field and, with the support of the Electric Fields and Waves (EFW) instrument sensors, the vector wave electric field at two locations in Earth's magnetosphere in a continuous survey mode (typically with a 6 second cadence) along with a number of different burst modes to provide high time resolution waveforms (35000 samples per second). These two modes allow a systematic survey of the occurrence of these waves. By measuring all six wave components simultaneously, the wave propagation parameters, such as the wave normal angle and Poynting vector, of these plasma wave emissions are obtained. We will present a statistical survey of the properties of these waves as detected by the Van Allen Probes, examine their occurrence location and use burst data to examine the fine structure of individual events.

  18. Suppression of allene oxide synthase 3 in potato increases degree of arbuscular mycorrhizal fungal colonization.

    Science.gov (United States)

    Morcillo, Rafael Jorge León; Navarrete, María Isabel Tamayo; Bote, Juan Antonio Ocampo; Monguio, Salomé Prat; García-Garrido, José Manuel

    2016-01-15

    Arbuscular mycorrhizal (AM) is a mutually beneficial interaction among higher plants and soil fungi of the phylum Glomeromycota. Numerous studies have pointed that jasmonic acid plays an important role in the development of the intraradical fungus. This compound belongs to a group of biologically active compounds known as oxylipins which are derived from the oxidative metabolism of polyunsaturated fatty acids. Studies of the regulatory role played by oxylipins in AM colonization have generally focused on jasmonates, while few studies exist on the 9-LOX pathway of oxylipins during AM formation. Here, the cDNA of Allene oxide synthase 3 (AOS3), a key enzyme in the 9-LOX pathway, was used in the RNA interference (RNAi) system to transform potato plants in order to suppress its expression. Results show increases in AOS3 gene expression and 9-LOX products in roots of wild type potato mycorrhizal plants. The suppression of AOS3 gene expression increases the percentage of root with mycorrhizal colonization at early stages of AM formation. AOS3 RNA interference lead to an induction of LOXA and 13-LOX genes, a reduction in AOS3 derived 9-LOX oxylipin compounds and an increase in jasmonic acid content, suggesting compensation between 9 and 13-LOX pathways. The results in a whole support the hypothesis of a regulatory role for the 9-LOX oxylipin pathway during mycorrhization. PMID:26629611

  19. A Neural Network Approach for Identifying Relativistic Electron Pitch Angle Distributions in Van Allen Probes Data

    Science.gov (United States)

    Souza, V. M. C. E. S.; Vieira, L.; Alves, L. R.; Da Silva, L. A.; Koga, D.; Sibeck, D. G.; Walsh, B.; Kanekal, S. G.; Silveira, M. D.; Medeiros, C.; Mendes, O., Jr.; Marchezi, J.; Rockenbach, M.; Jauer, P. R.; Gonzalez, W.; Baker, D. N.

    2015-12-01

    A myriad of physical phenomena occur in the inner magnetosphere, in particular at the Earth's radiation belts, which can be a result of the combination of both internal and external processes. However, the connection between physical processes occurring deep within the magnetosphere and external interplanetary drivers it is not yet well understood. In this work we investigate whether a selected set of interplanetary structures affect the local time distribution of three different classes of high energy electron pitch angle distributions (PADs), namely normal, isotropic, and butterfly. We split this work into two parts: initially we focus on the methodology used which employs a Self-Organized Feature Map (SOFM) neural network for identifying different classes of electron PAD shapes in the Van Allen Probes' Relativistic Electron Proton Telescope (REPT) data. The algorithm can categorize the input data into an arbitrary number of classes from which three of them appears the most: normal, isotropic and butterfly. Other classes which are related with these three also emerge and deserve to be addressed in detail in future works. We also discuss the uncertainties of the algorithm. Then, we move to the second part where we describe in details the criteria used for selecting the interplanetary events, and also try to investigate the relation between key parameters characterizing such interplanetary structures and the local time distributions of electron PAD shapes.

  20. Deterministic methods for the relativistic Vlasov-Maxwell equations and the Van Allen belts dynamics

    International Nuclear Information System (INIS)

    Artificial satellites operate in an hostile radiation environment, the Van Allen radiation belts, which partly condition their reliability and their lifespan. In order to protect them, it is necessary to characterize the dynamics of the energetic electrons trapped in these radiation belts. This dynamics is essentially determined by the interactions between the energetic electrons and the existing electromagnetic waves. This work consisted in designing a numerical scheme to solve the equations modelling these interactions: the relativistic Vlasov-Maxwell system of equations. Our choice was directed towards methods of direct integration. We propose three new spectral methods for the momentum discretization: a Galerkin method and two collocation methods. All of them are based on scaled Hermite functions. The scaling factor is chosen in order to obtain the proper velocity resolution. We present in this thesis the discretization of the one-dimensional Vlasov-Poisson system and the numerical results obtained. Then we study the possible extensions of the methods to the complete relativistic problem. In order to reduce the computing time, parallelization and optimization of the algorithms were carried out. Finally, we present 1Dx-3Dv (mono-dimensional for x and three-dimensional for velocity) computations of Weibel and whistler instabilities with one or two electrons species. (author)

  1. Pulsating aurora observed on the ground and in-situ by the Van Allen Probes

    Science.gov (United States)

    Lessard, M.; Cohen, I. J.; Denton, R. E.; Engebretson, M. J.; Kletzing, C.; Wygant, J. R.; Bounds, S. R.; Smith, C. W.; MacDowall, R. J.; Kurth, W. S.

    2013-12-01

    Early observations and theory related to pulsating aurora suggested that the electrons that drive this aurora originate from the equatorial region of the magnetosphere and that a likely process that can scatter these electrons would involve chorus waves. Recent satellite observations during pulsating auroral events have provided important "firsts", including evidence of strong correlations between pulsating auroral patches and in-situ lower-band chorus (THEMIS), as well as correlations with energetic electron precipitation in the vicinity of geosynchronous orbit (GOES). These results provide important information regarding particle dynamics, leading to a question about how the chorus might be driven. We present observations of the Van Allen Probes in conjunction with a pulsating aurora event, as confirmed by observations on the ground. The in-situ data again show the presence of lower-band chorus. However, magnetic and electric field data also show that the wave bursts coincide with an apparent poloidal field-line resonance, begging the question of whether the resonance might be responsible for driving the VLF waves.

  2. Commensal observing with the Allen Telescope array: software command and control

    Science.gov (United States)

    Gutierrez-Kraybill, Colby; Keating, Garrett K.; MacMahon, David; Williams, Peter K. G.; Harp, Gerald; Ackermann, Robert; Kilsdonk, Tom; Richards, Jon; Barott, William C.

    2010-07-01

    The Allen Telescope Array (ATA) is a Large-Number-Small-Diameter radio telescope array currently with 42 individual antennas and 5 independent back-end science systems (2 imaging FX correlators and 3 time domain beam formers) located at the Hat Creek Radio Observatory (HCRO). The goal of the ATA is to run multiple back-ends simultaneously, supporting multiple science projects commensally. The primary software control systems are based on a combination of Java, JRuby and Ruby on Rails. The primary control API is simplified to provide easy integration with new back-end systems while the lower layers of the software stack are handled by a master observing system. Scheduling observations for the ATA is based on finding a union between the science needs of multiple projects and automatically determining an efficient path to operating the various sub-components to meet those needs. When completed, the ATA is expected to be a world-class radio telescope, combining dedicated SETI projects with numerous radio astronomy science projects.

  3. Primary Beam and Dish Surface Characterization at the Allen Telescope Array by Radio Holography

    CERN Document Server

    Atkinson, Shannon; Backus, P R; Barott, William; Bauermeister, Amber; Blitz, Leo; Bock, D C -J; Bower, Geoffrey C; Bradford, Tucker; Cheng, Calvin; Croft, Steve; Dexter, Matt; Dreher, John; Engargiola, Greg; Fields, Ed; Heiles, Carl; Helfer, Tamara; Jordan, Jane; Jorgensen, Susan; Kilsdonk, Tom; Gutierrez-Kraybill, Colby; Keating, Garrett; Law, Casey; Lugten, John; MacMahon, D H E; McMahon, Peter; Milgrome, Oren; Siemion, Andrew; Smolek, Ken; Thornton, Douglas; Pierson, Tom; Randall, Karen; Ross, John; Shostak, Seth; Tarter, J C; Urry, Lynn; Werthimer, Dan; Williams, Peter K G; Whysong, David; Harp, G R; Ackermann, R F; Nadler, Z J; Blair, Samantha K; Davis, M M; Wright, M C H; Forster, J R; DeBoer, D R; Welch, W J

    2012-01-01

    The Allen Telescope Array (ATA) is a cm-wave interferometer in California, comprising 42 antenna elements with 6-m diameter dishes. We characterize the antenna optical accuracy using two-antenna interferometry and radio holography. The distortion of each telescope relative to the average is small, with RMS differences of 1 percent of beam peak value. Holography provides images of dish illumination pattern, allowing characterization of as-built mirror surfaces. The ATA dishes can experience mm-scale distortions across -2 meter lengths due to mounting stresses or solar radiation. Experimental RMS errors are 0.7 mm at night and 3 mm under worst case solar illumination. For frequencies 4, 10, and 15 GHz, the nighttime values indicate sensitivity losses of 1, 10 and 20 percent, respectively. The ATA.s exceptional wide-bandwidth permits observations over a continuous range 0.5 to 11.2 GHz, and future retrofits may increase this range to 15 GHz. Beam patterns show a slowly varying focus frequency dependence. We prob...

  4. Greek stroke score, Siriraj score and allen score in clinical diagnosis of intracerebral hemorrhage and infarct: Validation and comparison study

    Directory of Open Access Journals (Sweden)

    Soman Aamod

    2004-10-01

    Full Text Available AIM: To compare Greek stroke score with available previous two stroke scores for the diagnosis of cerebral ischemia and hemorrhage in acute stroke patients, and validate the Greek stroke score. SETTING: A tertiary hospital in India. MATERIALS AND METHODS: In a prospective study acute stroke patients were evaluated with Greek stroke score, Allen score and Siriraj stroke score. Comparability (Kappa Statistics and validity (sensitivity, specificity, negative predictive value and positive predictive value of the Greek stroke score and previous scores were tested. RESULT: Out of the 91 patients enrolled in the study, 47 patients had cerebral infarction and 44 patients had hemorrhage by CT scan. Allen score was uncertain / equivocal in 39 patients, Siriraj Stroke score in 22 and Greek stroke score in 47 patients. Sensitivity, Specificity, positive predictive value, negative predictive value for Allen score were 0.5(95% CI:0.34,0.58, 0.94(95% CI:0.86,0.98, 0.81(95% CI:0.56,0.95, 0.78(95% CI: 0.71,0.81 for Siriraj score were 0.75(95% CI: 0.63,0.84, 0.81(95% CI: 0.71,0.89, 0.77(95% CI: 0.65,0.86, 0.78(95% CI 0.69,0.86 and for Greek Score were 0.42(95% CI: 0.23,0.53, 0.93(95% CI: 0.87,0.98, 0.71(95% CI:0.39,0.91, 0.81(95% CI:0.75,0.85 respectively. Greek stroke score was compared with previous scores using kappa statistics which revealed substantial strength of agreement between the Allen Score for certain results. CONCLUSION: The overall comparability of Greek stroke score and Allen score was better as compared to Greek stroke score and Siriraj stroke score. Greek Stroke score was more specific in diagnosing hemorrhage as compared to Siriraj score. However, all these stroke scores lack accuracy hence could not be applied safely to guide the physician in management of stroke.

  5. Allen's rule revisited: temperature influences bone elongation during a critical period of postnatal development.

    Science.gov (United States)

    Serrat, Maria A

    2013-10-01

    Limbs of animals raised at warm ambient temperature are significantly and permanently longer than those of siblings housed in the cold. These highly reproducible lab results closely parallel the ecogeographical tenet described by Allen's extremity size rule, which states that appendage length correlates with temperature and latitude. It is unclear what mechanisms underlie these differences and in what pattern they emerge, since the morphology is traditionally thought to reflect naturally selected genomic adaptations for thermoregulation. This study tests the a posteriori hypothesis that adult extremity length is subject to substantial modification by temperature during a brief but critical period of early postnatal development. Weanling mice (N = 28) were divided into three groups and housed at 7°C, 21°C, or 27°C for eight weeks. Tail lengths and body mass were measured weekly. Mass did not differ at any age. Analysis of tail elongation curves revealed two distinct phases: an initial period of rapid temperature-sensitive growth in which elongation rate was directly impacted by temperature; and a second phase of continued growth in which rates were identical among groups. Comparable growth reactions occur in response to other environmental variables such as exercise, suggesting that the skeleton is most responsive to external stimuli during a window of heightened sensitivity when growth occurs most rapidly. Knowledge of the timing and degree to which growth plasticity permits mammals to immediately adjust to novel temperature conditions will be important for analyzing skeletal variation in fluctuating climates, particularly for assessing factors that may accelerate skeletal evolution at temperature extremes.

  6. Observations of purely compressional waves in the upper ULF band observed by the Van Allen Probes

    Science.gov (United States)

    Posch, J. L.; Engebretson, M. J.; Johnson, J.; Kim, E. H.; Thaller, S. A.; Wygant, J. R.; Kletzing, C.; Smith, C. W.; Reeves, G. D.

    2014-12-01

    Purely compressional electromagnetic waves, also denoted fast magnetosonic waves, equatorial noise, and ion Bernstein modes, can both heat thermal protons and accelerate electrons up to relativistic energies. These waves have been observed both in the near-equatorial region in the inner magnetosphere and in the plasma sheet boundary layer. Although these waves have been observed by various types of satellite instruments (DC and AC magnetometers and electric field sensors), most recent studies have used data from AC sensors, and many have been restricted to frequencies above ~50 Hz. We report here on a survey of ~200 of these waves, based on DC electric and magnetic field data from the EFW double probe and EMFISIS fluxgate magnetometer instruments, respectively, on the Van Allen Probes spacecraft during its first two years of operation. The high sampling rate of these instruments makes it possible to extend observational studies of the lower frequency population of such waves to lower L shells than any previous study. These waves, often with multiple harmonics of the local proton gyrofrequency, were observed both inside and outside the plasmapause, in regions with plasma number densities ranging from 10 to >1000 cm-3. Wave occurrence was sharply peaked near the magnetic equator and occurred at L shells from below 2 to ~6 (the spacecraft apogee). Waves appeared at all local times but were more common from noon to dusk. Outside the plasmapause, occurrence maximized broadly across noon. Inside the plasmapause, occurrence maximized in the dusk sector, in an extended plasmasphere. Every event occurred in association with a positive gradient in the HOPE omnidirectional proton flux in the range between 2 keV and 10 keV. The Poynting vector, determined for 8 events, was in all cases directed transverse to B, but with variable azimuth, consistent with earlier models and observations.

  7. Innermost Van Allen Radiation Belt for High Energy Protons at Saturn

    Science.gov (United States)

    Cooper, John F.

    2008-01-01

    The high energy proton radiation belts of Saturn are energetically dominated by the source from cosmic ray albedo neutron decay (CRAND), trapping of protons from beta decay of neutrons emitted from galactic cosmic ray nuclear interactions with the main rings. These belts were originally discovered in wide gaps between the A-ring, Janus/Epimetheus, Mimas, and Enceladus. The narrow F and G rings significant affected the CRAND protons but did not produce total depletion. Voyager 2 measurements subsequently revealed an outermost CRAND proton belt beyond Enceladus. Although the source rate is small, the trapping times limited by radial magnetospheric diffusion are very long, about ten years at peak measured flux inwards of the G ring, so large fluxes can accumulate unless otherwise limited in the trapping region by neutral gas, dust, and ring body interactions. One proposed final extension of the Cassini Orbiter mission would place perikrone in a 3000-km gap between the inner D ring and the upper atmosphere of Saturn. Experience with CRAND in the Earth's inner Van Allen proton belt suggests that a similar innermost belt might be found in this comparably wide region at Saturn. Radial dependence of magnetospheric diffusion, proximity to the ring neutron source, and northward magnetic offset of Saturn's magnetic equator from the ring plane could potentially produce peak fluxes several orders of magnitude higher than previously measured outside the main rings. Even brief passes through such an intense environment of highly penetrating protons would be a significant concern for spacecraft operations and science observations. Actual fluxes are limited by losses in Saturn's exospheric gas and in a dust environment likely comparable to that of the known CRAND proton belts. The first numerical model of this unexplored radiation belt is presented to determine limits on peak magnitude and radial profile of the proton flux distribution.

  8. SPECTROPOLARIMETRY WITH THE ALLEN TELESCOPE ARRAY: FARADAY ROTATION TOWARD BRIGHT POLARIZED RADIO GALAXIES

    International Nuclear Information System (INIS)

    We have observed 37 bright, polarized radio sources with the Allen Telescope Array (ATA) to present a novel analysis of their Faraday rotation properties. Each source was observed during the commissioning phase with two to four 100 MHz bands at frequencies ranging from 1 to 2 GHz. These observations demonstrate how the continuous frequency coverage of the ATA's log-periodic receiver can be applied to the study of Faraday rotation measures (RMs). We use RM synthesis to show that wide-bandwidth data can find multiple RM components toward a single source. Roughly a quarter of the sources studied have extra RM components with high confidence (brighter than ∼40 mJy), when observing with an RM resolution of roughly 100 rad m-2. These extra components contribute 10%-70% of the total polarized flux. This is the first time multiple RM components have been identified in a large sample of point sources. For our observing configuration, these extra RM components bias the measurement of the peak RM by 10-15 rad m-2; more generally, the peak RM cannot be determined more precisely than the RM beam size. Comparing our 1-2 GHz RM spectra to Very Long Baseline Array (VLBA) polarimetric maps shows that both techniques can identify complicated Faraday structures in the sources. However, the RM values and fractional polarization are generally smaller at lower frequencies than in the higher frequency VLBA maps. With a few exceptions, the RMs from this work are consistent with that of earlier, narrow-bandwidth, all-sky surveys. This work also describes the polarimetry calibration procedure and that on-axis ATA observations of linear polarization can be calibrated to an accuracy of 0.2% of Stokes I. Future research directions include studying the time-dependent RM structure in active galactic nuclei and enabling accurate, wide-area RM surveys to test models of Galactic and extragalactic magnetic fields.

  9. Reactivity of sarcosine and 1,3-thiazolidine-4-carboxylic acid towards salicylaldehyde-derived alkynes and allenes

    OpenAIRE

    Laia, Fernanda M. Ribeiro; Gomes, Clara S. B.; Melo, Teresa M.V.D. Pinho e

    2013-01-01

    The reaction of sarcosine and 1,3-thiazolidine-4-carboxylic acid with salicylaldehyde-derived alkynes and allenes opened the way to new chromeno[4,3-b]pyrrole and chromeno[2,3-b]pyrrole derivatives. Tetrahydro-chromeno[4,3-b]pyrroles were obtained from the reaction of these secondary amino acids with O-propargylsalicylaldehyde. Interestingly, sarcosine reacted with ethyl 4-(2-formylphenoxy)but-2-ynoate to give a monocyclic pyrrole resulting from rearrangement of the initially formed 1,3-dipol...

  10. Elias Allen and the role of instruments in shaping the mathematical culture of seventeenth-century England

    OpenAIRE

    Higton, Hester Katharine

    1996-01-01

    Elias AlIen (c.1588-1653) was known as the best mathematical instrument maker of his day. He lived and worked in London, creating a thriving business - he was the first English instrument maker to support himself solely through the production of instruments - and teaching his skills to many apprentices who became the core of the trade during the latter part of the century. My thesis provides a full biography of Allen, set within the framework of the community of people who were in...

  11. Multi-Spacecraft Data Assimilation and Reanalysis During the THEMIS and Van Allen Probes Era

    Science.gov (United States)

    Kellerman, A. C.; Shprits, Y.; Kondrashov, D. A.; Podladchikova, T.; Drozdov, A.; Subbotin, D.

    2013-12-01

    consideration of the innovation vector may lead to a new physical understanding of the radiation belt system, which can later be used to improve our model forecasts. In the current study, we explore the radiation belt dynamics of the current era including data from the THEMIS, Van Allen Probes, GPS satellites, Akebono, NOAA and Cluster spacecraft. Intercalibration is performed between spacecraft on an individual energy channel basis, and in invariant coordinates. The global reanalysis allows an unprecedented analysis of the source-acceleration-transport-loss relationship in Earth's radiation belts. This analysis is used to refine our model capabilities, and to prepare the 3-D reanalysis for real-time data. The global 3-D reanalysis is an important step towards full-scale modeling and operational forecasting of this dynamic region of space.

  12. Van Allen Probes observations of dipolarization and its associated O+ flux variations in the inner magnetosphere

    Science.gov (United States)

    Nose, M.; Keika, K.; Kletzing, C.; Smith, C. W.; MacDowall, R. J.; Reeves, G. D.; Spence, H. E.

    2015-12-01

    Recent study employing the MDS-1 satellite reveals that magnetic field dipolarization in the deep inner magnetosphere is not unusual. When the MDS-1 satellite was located at L=3.5-5.0 near the auroral onset longitude (MLT difference of ≤2.5 h), the occurrence probability of local dipolarization was about 16%. Surprisingly, an event was found at L~3.6, far inside the geosynchronous altitude. It was also shown that after the dipolarization, the oxygen ENA flux in the nightside ring current region measured by the IMAGE satellite was predominantly enhanced by a factor of 2-5 and stayed at an enhanced level for more than 1 h, while clear enhancement was scarcely seen in the hydrogen ENA flux. To better understand mechanisms of the selective acceleration of O+ ions during dipolarization, an in-situ measurement of ion fluxes is needed. However, there are few studies investigating H+ and O+ flux variations during dipolarization in the deep inner magnetosphere. In this study we investigate magnetic field dipolarization and its associated ion flux variations in the deep inner magnetosphere, using magnetic field and ion flux data obtained by the Van Allen Probes. From the magnetic field data recorded on the nightside (1800-0600 MLT) in the inner magnetosphere (L=3.0-6.6) in VDH coordinates, we select substorm-related dipolarization events in which the H component increases by more than 20 nT and the absolute value of the V component decreases by more than 8 nT in 5 minutes. About 150 dipolarization events are identified from 1 October 2012 to 30 June 2015. We find that the dipolarization mostly occurs at L=4.5-6.5 in the premidnight sector (2100-0000 MLT). No events are found at L<4.0. Some dipolarization events are accompanied by O+ flux enhancements in the energy range higher than a few keV, which have the pitch angle distribution peaked around 45 or 135 degrees. We also find that low energy O+ ions often appear after dipolarization with an energy dispersion starting from

  13. Since Yesterday: The Nineteen Thirties in America. By Frederick Allen Lewis. New York: Bantam Books, 1939. 292pp. Since Yesterday: The Nineteen Thirties in America. By Frederick Allen Lewis. New York: Bantam Books, 1939. 292pp.

    Directory of Open Access Journals (Sweden)

    Eileen Klink

    2008-04-01

    Full Text Available Material Covered: A compendium of events, people, places, and settings of the Thirties, this book offers information on: 1.chronology and impact of events on national and international levels–from the prelude to the Panic, September 3, 1929, through the outbreak of the war with Germany, September 3, 1939. 2.major political and business figures plus celebrities of the era–Hoover, Roosevelt, Hitler, Charles Lindbergh, Fred & Gracie Allen, etc. 3.influential organizations and unions. 4.statistical information and analysis. 5. day–to–day life—e.g., the books, magazines, and newspapers; films and radio programs; automobiles; fashions; the weather. Material Covered: A compendium of events, people, places, and settings of the Thirties, this book offers information on: 1.chronology and impact of events on national and international levels–from the prelude to the Panic, September 3, 1929, through the outbreak of the war with Germany, September 3, 1939. 2.major political and business figures plus celebrities of the era–Hoover, Roosevelt, Hitler, Charles Lindbergh, Fred & Gracie Allen, etc. 3.influential organizations and unions. 4.statistical information and analysis. 5. day–to–day life—e.g., the books, magazines, and newspapers; films and radio programs; automobiles; fashions; the weather.

  14. Alkyne versus allene activation in platinum- and gold-catalyzed cycloisomerization of hydroxylated 1,5-allenynes.

    Science.gov (United States)

    Zriba, Riadh; Gandon, Vincent; Aubert, Corinne; Fensterbank, Louis; Malacria, Max

    2008-01-01

    Chemo- and stereoselective transformations of 3-hydroxy-1,5-allenynes 1 into a variety of new and potentially useful cyclic compounds have been achieved. Substrates bearing a silyl group at the alkyne moiety undergo purely thermal or Lewis acid catalyzed Alder-ene type transformations into 2-methylene-3-vinylcyclopent-3-enol derivatives 2. When heated in the presence of a catalytic amount of PtCl(2) or PtCl(4), these incipient cyclopentenols could be further transformed into 3-vinylcyclopent-2-enones 3. On the other hand, alkyl-substituted 3-hydroxy-1,5-allenynes proved to be stable under refluxing conditions. Nevertheless, PtCl(2) and PtCl(4) could selectively activate the alkyne moiety of these substrates toward intramolecular nucleophilic attack of the internal allene double bond to yield unprecedented 6-methylenebicyclo[3.1.0]hexan-3-one derivatives 4. With gold-based catalysts, provided that the reaction is carried out in dichloromethane, both Au(I) and Au(III) complexes selectively activate the allene fragment of the substrates toward intramolecular nucleophilic attack of the hydroxyl group to yield 2-ethynyl-3,6-dihydro-2H-pyrans 5. Compounds of type 4 can also be formed with Au(I) and Au(III) complexes if the reaction is carried out in toluene. The reactivity of these new compounds has been partially investigated, and polycyclic ketones were obtained after oxidation under mild conditions or gold-catalyzed cycloisomerization. PMID:18034446

  15. Sacrament and Growth : A Study in the Sacramental Dimension of Expansion in the Life of the Local Church, as Reflected in the Theology of Roland Allen

    OpenAIRE

    Talltorp, Åke

    2013-01-01

    Åke Talltorp, Sacrament and Growth, A Study in the Sacramental Dimension of Expansion in the Life of the Local Church, as Reflected in the Theology of Roland Allen. Linköping Studies in Religion and Religious Education, No 7. Linköping University Electronic Press. ISSN 1404-4269 (on-line). Roland Allen (1868–1947) emerged as an independent missionary strategist within the Anglican Mission to China from 1895 to 1904 and within the interdenominational World Dominion Press from 1924 to 1930. He ...

  16. Mentoring Excellence in the Kinesiology Academy. National Association of Kinesiology in Higher Education 35th Dudley Allen Sargent Commemorative Lecture 2016

    Science.gov (United States)

    Knudson, Duane

    2016-01-01

    This article from the 35th Dudley Allen Sargent Lecture addresses the importance of senior faculty in kinesiology providing holistic guidance to tenure-track faculty to foster excellence in the field. The importance of holistic mentoring of all three faculty roles in higher education is illustrated using research on teaching and learning…

  17. Isomerization of Internal Alkynes to Iridium(III Allene Complexes via C–H Bond Activation: Expanded Substrate Scope, and Progress towards a Catalytic Methodology

    Directory of Open Access Journals (Sweden)

    Neha Phadke

    2015-11-01

    Full Text Available The synthesis of a series of allene complexes (POCOPIr(η2-RC=.=CR’ 1b–4b (POCOP = 2,6-bis(di-tert-butylphosphonitobenzene via isomerization of internal alkynes is reported. We have demonstrated that the application of this methodology is viable for the isomerization of a wide variety of alkyne substrates. Deuterium labeling experiments support our proposed mechanism. The structures of the allene complexes 1b–4b were determined using spectroscopic data analysis. Additionally, the solid-state molecular structure of complex 2b was determined using single crystal X-ray diffraction studies and it confirmed the assignment of an iridium-bound allene isomerization product. The rates of isomerization were measured using NMR techniques over a range of temperatures to allow determination of thermodynamic parameters. Finally, we report a preliminary step towards developing a catalytic methodology; the allene may be liberated from the metal center by exposure of the complex to an atmosphere of carbon monoxide.

  18. Broad and Visionary. Commentary on Allen Kent (1977) Information Science. (Journal of Education for Librarianship, 17(3), 131-139)

    Science.gov (United States)

    Bates, Marcia J.

    2015-01-01

    Allen Kent was a pioneer in many aspects of library and information science (LIS), and yet, as this author reads Kent's 1977 article, there is not much in it that has become ancient, irrelevant history. The questions he discusses are still alive in the discipline in 2014, whether it is called LIS (library and information science), information…

  19. Quantification of Brain Access of Exendin-4 in the C57BL Mouse Model by SPIM Fluorescence Imaging and the Allen Mouse Brain Reference Model

    DEFF Research Database (Denmark)

    Jensen, Casper Bo; Secher, Anna; Hecksher-Sørensen, Jacob;

    2015-01-01

    construct a SPIM brain atlas based on the Allen mouse brain 3D reference model and use it to analyze the access of peripherally injected Exendin-4 into the brain compared to a negative control group. The constructed atlas consists of an average SPIM volume obtained from eight C57BL mouse brains using group...

  20. Ruthenium-catalyzed C-C coupling of fluorinated alcohols with allenes: dehydrogenation at the energetic limit of β-hydride elimination.

    Science.gov (United States)

    Sam, Brannon; Luong, Tom; Krische, Michael J

    2015-04-27

    Ruthenium(II) complexes catalyze the CC coupling of 1,1-disubstituted allenes and fluorinated alcohols to form homoallylic alcohols bearing all-carbon quaternary centers with good to complete levels of diastereoselectivity. Whereas fluorinated alcohols are relatively abundant and tractable, the corresponding aldehydes are often not commercially available because of their instability.

  1. Modes of Heme-Binding and Substrate Access for Cytochrome P450 CYP74A Revealed by Crystal Structures of Allene Oxide Synthase

    Science.gov (United States)

    Cytochrome P450s exist ubiquitously in all organisms and are involved in many biological processes. Allene oxide synthase (AOS) is a P450 enzyme that plays a key role in the biosynthesis of oxylipin jasmonates which are involved in signal and defense reactions in higher plants. The crystal structure...

  2. Gold coordination during homogeneous alkyne and allene cyclisation catalysis: Coordination to substrates, to ancillary ligands and in intermediates

    Directory of Open Access Journals (Sweden)

    Hubert Schmidbaur

    2011-03-01

    Full Text Available The ever-increasing role of homogeneous gold catalysis in organic synthesis and the consequent need to be able to rationally control the rate and outcome of such reactions has emphasised the importance of each successive metal–carbon coordination step. Concentrating on alkyne and allene cyclisation and upon reaction mechanisms postulated on the basis of empirical and theoretical results, we have examined the coordination of gold fragments to triple bonds, the modification of gold(I precatalysts to effect specific reaction pathways or enantioselectivity and the isolation of coordinated intermediates or model compounds thereof. Some of the recent advances that have been made in various laboratories are described in this compact review.

  3. Exact Mass Measurements for a-Allenic Alcohol by Atmospheric Pressure Chemical Ionization/Time-of-flight Mass Spectrometry

    Institute of Scientific and Technical Information of China (English)

    何萍; 郭寅龙; 陈国强; 徐代旺; 麻生明

    2003-01-01

    The atmospheric pressure chemical ionization/time,of-flight mass speetrmtry (APEI/TOF-MS) was applied to determine the mass of five a.aIIenic alcohols via their vrotonated molecu.lar ions nslna Imsifive ion mode. Polyethylene Idycol (PEG) was used as the hlternal reference. All results were obtained under the resolution of about 5000 FWHM (full width at the half maximum). Solvent effects were studied and the satired results were obtained in acetonitrile. Comvared with the theoreflcal values, nun absolute errors were less thRn 1.0 mmu. The efTeets Of nozzle pote.Jldal, push pulse potential, pug pulse potentlai, puO bias potential and ic(lulsltion rate on exact mass determina/lon were also discussed. APCI/TOF.MS is proven to be a very semi/ire analytical technique and an alternative ionizafion mode in analytical technique lablle compounds with relatively weak polarity, such as a-allenic alcohol.

  4. A Study of the Duration of the Passage through the Van Allen Belts for a Spacecraft going to the Moon

    International Nuclear Information System (INIS)

    This paper has the goal of estimating the fuel consumption and the duration of the transit in the Van Allen belts for a flight of a spacecraft going from the Earth to the Moon. This problem is very important because the region interior to the belts have a high density of energetic charged particles that can damage the satellite, so minimizing this transit time helps in protecting the equipments on board. The propulsive force is assumed to have a low magnitude and to be applied in the direction of the motion of the spacecraft to maximize the energy transferred to the space vehicle. Perturbation forces are considered in the dynamical model and they influence in both results, consumption and transit time

  5. A new species of Trichuris Roederer, 1761 (Nematoda: Trichuridae) from Heteromys gaumeri Allen & Chapman (Rodentia: Heteromyidae) in Yucatan, Mexico.

    Science.gov (United States)

    Panti-May, Jesús Alonso; Robles, María Del Rosario

    2016-09-01

    In Mexico, four species of Trichuris Roederer, 1761 have been recorded in wild rodents belonging to the family Heteromyidae. In the present paper, we describe a new species based on specimens collected from Heteromys gaumeri Allen & Chapman (Heteromyidae: Heteromyinae) in the tropical forests of the Yucatan Peninsula, Mexico. Trichuris silviae n. sp. can be differentiated from the congeners described in North and South American rodents by morphological and morphometric features, such as the possession of a wide spicular tube, a thicker proximal cloacal tube, a shorter distal cloacal tube and a cylindrical spicular sheath. This is the first description of a Trichuris spp. from heteromyid rodents in Mexico and the fourth in North America. Despite the broad distribution of Heteromys spp., few cases of Trichuris infection have been reported. Further studies are necessary to verify if the new species is present in other heteromyid rodents in order to increase our knowledge about its geographical and host distribution. PMID:27522370

  6. Computational neuroanatomy: mapping cell-type densities in the mouse brain, simulations from the Allen Brain Atlas

    Science.gov (United States)

    Grange, Pascal

    2015-09-01

    The Allen Brain Atlas of the adult mouse (ABA) consists of digitized expression profiles of thousands of genes in the mouse brain, co-registered to a common three-dimensional template (the Allen Reference Atlas).This brain-wide, genome-wide data set has triggered a renaissance in neuroanatomy. Its voxelized version (with cubic voxels of side 200 microns) is available for desktop computation in MATLAB. On the other hand, brain cells exhibit a great phenotypic diversity (in terms of size, shape and electrophysiological activity), which has inspired the names of some well-studied cell types, such as granule cells and medium spiny neurons. However, no exhaustive taxonomy of brain cell is available. A genetic classification of brain cells is being undertaken, and some cell types have been chraracterized by their transcriptome profiles. However, given a cell type characterized by its transcriptome, it is not clear where else in the brain similar cells can be found. The ABA can been used to solve this region-specificity problem in a data-driven way: rewriting the brain-wide expression profiles of all genes in the atlas as a sum of cell-type-specific transcriptome profiles is equivalent to solving a quadratic optimization problem at each voxel in the brain. However, the estimated brain-wide densities of 64 cell types published recently were based on one series of co-registered coronal in situ hybridization (ISH) images per gene, whereas the online ABA contains several image series per gene, including sagittal ones. In the presented work, we simulate the variability of cell-type densities in a Monte Carlo way by repeatedly drawing a random image series for each gene and solving the optimization problem. This yields error bars on the region-specificity of cell types.

  7. Deeper and earlier penetrations of oxygen ions than protons into the inner magnetosphere Observed by Van Allen probes.

    Science.gov (United States)

    Mitani, K.; Seki, K.; Keika, K.; Lanzerotti, L. J.; Gkioulidou, M.; Mitchell, D. G.; Kletzing, C.

    2015-12-01

    It is observationally known that proton and oxygen ions are main components of the ring current during magnetic storms and that the proton and oxygen ions are considered to have different source and supply mechanisms. However, detailed properties of the ion supply and their dependence on ion species is far from well understood. To characterize the ion supply to the ring current during magnetic storms, we report studies of the properties of energetic proton and oxygen ion phase space densities (PSDs) during the April 23-25, 2013, geomagnetic storm observed by the Van Allen Probes mission. We used energetic ion (~50 - ~600keV protons, ~140 - ~1100keV oxygen) and magnetic field data obtained by the RBSPICE and EMFISIS, respectively, on the Van Allen Probes. We calculated ion PSDs for the specific first adiabatic invariant, mu (0.3 main phase of the magnetic storm. Protons with smaller mu values (mu = 0.3 and 0.5 keV/nT) penetrated earlier than those with larger mu values (mu = 1.0 keV/nT). This result appears consistent with the energy dependence of the Alfven layer. The timing of oxygen ion penetration is approximately the same for all mu values (mu = 0.8, 1.0 and 1.2 keV/nT). The observations also show that oxygen ions penetrated more deeply in L and earlier in time than protons for the same mu value (mu = 1.0keV/nT). These results suggest that the source of the transported oxygen ions is located closer to the Earth than the inner edge of protons. The results imply the importance of the contribution from subauroral oxygen ions to the storm-time ring current. We will also discuss the possibility of non-adiabatic acceleration of oxygen ions in the inner magnetosphere.

  8. A tribute to Dr. Robert C. Allen, an inspirational teacher, humanitarian, and friend (Nov. 18, 1950-Mar. 24, 2005).

    Science.gov (United States)

    Edlich, Richard F; Greene, Jill A; Long, William B

    2006-01-01

    Dr. Robert C. Allen was a gifted educator, as well as experienced ophthalmologist, who was a close personal friend of Dr. Edlich at the University of Virginia Health System. While serving on the faculty at the University of Virginia Health System, Dr. Allen proved to be a compassionate physician, who developed close personal relationships with the residents, faculty, and his patients. Dr. Allen was invited by Dr Edlich to be a member of the Editorial Board of the Journal of Long-Term Effects of Medical Implants. When Dr. Allen told Dr. Edlich that he had ocular melanoma in 2000, this news was a wake-up call to Dr. Edlich on the need to prevent skin cancer, as well as ocular melanoma. Empowered by this news, Dr. Edlich was honored to co-author four articles on skin cancer prevention, as well as the latest article focusing on prevention of ocular melanoma. The Ocular Melanoma Foundation (Richmond, VA (USA)) was founded in 2003 by Dr. Robert C. Allen to increase awareness, enhance education, and provide advocacy among both patients and health care professionals regarding this rare, but potentially lethal cancer. It has a website that provides patient information, up-to-date information and enables communication/ discourse between and among patients and practitioners (admin@ocularmelanoma.org). Dr. Allen died on March 24, 2005, at his home surrounded by family and loved ones. When surgeons are faced with challenging healthcare diseases, Dr. Edlich's mentor, Dr. Owen Wangensteen, advised Dr. Edlich that he should seek the advice and guidance of skilled basic scientists, who are familiar with the problem. Dr. Wangensteen is recognized as the greatest surgical teacher during the 20th century. Consequently, Dr. Edlich enlisted the advice and guidance from the two co-authors of the next article regarding the scientific basis for the selection of sunglasses to prevent the development of cataracts, pterygia, skin cancer, as well as ocular melanoma. Dr. Reichow is a Professor

  9. Deterministic methods for the relativistic Vlasov-Maxwell equations and the Van Allen belts dynamics; Methodes deterministes de resolution des equations de Vlasov-Maxwell relativistes en vue du calcul de la dynamique des ceintures de Van Allen

    Energy Technology Data Exchange (ETDEWEB)

    Le Bourdiec, S

    2007-03-15

    Artificial satellites operate in an hostile radiation environment, the Van Allen radiation belts, which partly condition their reliability and their lifespan. In order to protect them, it is necessary to characterize the dynamics of the energetic electrons trapped in these radiation belts. This dynamics is essentially determined by the interactions between the energetic electrons and the existing electromagnetic waves. This work consisted in designing a numerical scheme to solve the equations modelling these interactions: the relativistic Vlasov-Maxwell system of equations. Our choice was directed towards methods of direct integration. We propose three new spectral methods for the momentum discretization: a Galerkin method and two collocation methods. All of them are based on scaled Hermite functions. The scaling factor is chosen in order to obtain the proper velocity resolution. We present in this thesis the discretization of the one-dimensional Vlasov-Poisson system and the numerical results obtained. Then we study the possible extensions of the methods to the complete relativistic problem. In order to reduce the computing time, parallelization and optimization of the algorithms were carried out. Finally, we present 1Dx-3Dv (mono-dimensional for x and three-dimensional for velocity) computations of Weibel and whistler instabilities with one or two electrons species. (author)

  10. Studies on K2CO3-Catalyzed 1,4-Addition of 1,2-Allenic Ketones with Diethyl Malonate: Controlled Selective Synthesis of β, γ-Unsaturated Enones and α-Pyrones

    Institute of Scientific and Technical Information of China (English)

    MA Sheng-Ming; YU Shi-Chao

    2003-01-01

    @@ The reaction of diethyl malonate with various substituted 1,2-allenic ketone can be catalyzed by 10% of K2CO3leading to polyfunctionalized β, γ-unsaturated enones 3 or 4. With 3-unsaturated 1-substituted-1, 2-allenic ketones, the highly selective formation of β, γ-unsaturated enones 4 was observed; with 1,2-allenic ketones with one or two γ-substituents, only β, γ-unsaturated enones 3 with an unmigrated carbon-carbon double bond were produced; with γ-monosubstituted-1,2-allenic ketones the corresponding (E)-3 were formed highly selectively; with propadienyl ketones, a mixture of β, γ-unsaturated enones 3 and 4 were formed.

  11. ALLENE OXIDE CYCLASE (AOC) gene family members of Arabidopsis thaliana: tissue- and organ-specific promoter activities and in vivo heteromerization*

    OpenAIRE

    Stenzel, Irene; Otto, Markus; Delker, Carolin; Kirmse, Nils; Schmidt, Diana; Miersch, Otto; Hause, Bettina; Wasternack, Claus

    2012-01-01

    Jasmonates are important signals in plant stress responses and plant development. An essential step in the biosynthesis of jasmonic acid (JA) is catalysed by ALLENE OXIDE CYCLASE (AOC) which establishes the naturally occurring enantiomeric structure of jasmonates. In Arabidopsis thaliana, four genes encode four functional AOC polypeptides (AOC1, AOC2, AOC3, and AOC4) raising the question of functional redundancy or diversification. Analysis of transcript accumulation revealed an organ-specifi...

  12. Synthesis of 1,2-allenic ketones through oxidation of homopropargyl alcohols with CrO3(cat.)/TBHP under MWI

    Institute of Scientific and Technical Information of China (English)

    Xin Ying Zhang; Ying Ying Qu; Yang Yang Wang; Xue Sen Fan

    2011-01-01

    A Cr3 catalyzed oxidation of homopropargyl alcohols with tert-butyl hydroperoxide under microwave irradiation was found to be an efficient and rapid alternative for the preparation of 1,2-allenic ketones. The advantages of this procedure include short reaction time, less adverse impact on the environment and reasonably high efficiency. (c) 2010 Published by Elsevier B.V. on behalf of Chinese Chemical Society.

  13. A survey of the effect of organizational culture on organizational commitment based on Allen and Meyer model (Case study: High school teachers of Bandpey region)

    OpenAIRE

    Ali Asghar Firuzjaeyan; Mojtaba Firuzjaeyan; Behdad Sadeghi

    2015-01-01

    The present study aimed to investigate the effect of organizational culture on organizational commitment of teachers. in this study Organizational commitment is based on Allen and Meyer: affective, continuance and normative commitment. The studied organizational culture is based on Denison four-dimension theory. Adaptability, Mission, Involvement and Consistency. Due to a few empirical studies in this region, the data were collected among 156 teachers of Bandpay region. The data were collecte...

  14. Combined convective and diffusive simulations: VERB-4D comparison with 17 March 2013 Van Allen Probes observations

    Science.gov (United States)

    Shprits, Yuri Y.; Kellerman, Adam C.; Drozdov, Alexander Y.; Spence, Harlan E.; Reeves, Geoffrey D.; Baker, Daniel N.

    2015-11-01

    This study is focused on understanding the coupling between different electron populations in the inner magnetosphere and the various physical processes that determine evolution of electron fluxes at different energies. Observations during the 17 March 2013 storm and simulations with a newly developed Versatile Electron Radiation Belt-4D (VERB-4D) are presented. Analysis of the drift trajectories of the energetic and relativistic electrons shows that electron trajectories at transitional energies with a first invariant on the scale of ~100 MeV/G may resemble ring current or relativistic electron trajectories depending on the level of geomagnetic activity. Simulations with the VERB-4D code including convection, radial diffusion, and energy diffusion are presented. Sensitivity simulations including various physical processes show how different acceleration mechanisms contribute to the energization of energetic electrons at transitional energies. In particular, the range of energies where inward transport is strongly influenced by both convection and radial diffusion are studied. The results of the 4-D simulations are compared to Van Allen Probes observations at a range of energies including source, seed, and core populations of the energetic and relativistic electrons in the inner magnetosphere.

  15. Kalman Filtering and Smoothing of the Van Allen Probes Observations to Estimate the Radial, Energy and Pitch Angle Diffusion Rates

    Science.gov (United States)

    Podladchikova, T.; Shprits, Y.; Kellerman, A. C.

    2015-12-01

    The Kalman filter technique combines the strengths of new physical models of the Earth's radiation belts with long-term spacecraft observations of electron fluxes and therefore provide an extremely useful method for the analysis of the state and evolution of the electron radiation belts. However, to get the reliable data assimilation output, the Kalman filter application is confronted with a set of fundamental problems. E.g., satellite measurements are usually limited to a single location in space, which confines the reconstruction of the global evolution of the radiation environment. The uncertainties arise from the imperfect description of the process dynamics and the presence of observation errors, which may cause the failure of data assimilation solution. The development of adaptive Kalman filter that combines the Van Allen Probes data and 3-D VERB code, its accurate customizations in the reconstruction of model describing the phase space density (PSD) evolution, extension of the possibilities to use measurement information, and the model adjustment by developing the identification techniques of model and measurement errors allowed us to reveal hidden and implicit regularities of the PSD dynamics and obtain quantitative and qualitative estimates of radial, energy and pitch angle diffusion characteristics from satellite observations. In this study we propose an approach to estimate radial, energy and pitch angle diffusion rates, as well as the direction of their propagation.

  16. The Allen Telescope Array Pi GHz Sky Survey I. Survey Description and Static Catalog Results for the Bootes Field

    CERN Document Server

    Bower, Geoffrey C; Keating, Garrett; Whysong, David; Ackermann, Rob; Atkinson, Shannon; Backer, Don; Backus, Peter; Barott, Billy; Bauermeister, Amber; Blitz, Leo; Bock, Douglas; Bradford, Tucker; Cheng, Calvin; Cork, Chris; Davis, Mike; DeBoer, Dave; Dexter, Matt; Dreher, John; Engargiola, Greg; Fields, Ed; Fleming, Matt; Forster, R James; Gutierrez-Kraybill, Colby; Harp, G R; Heiles, Carl; Helfer, Tamara; Hull, Chat; Jordan, Jane; Jorgensen, Susanne; Kilsdonk, Tom; Law, Casey; van Leeuwen, Joeri; Lugten, John; MacMahon, Dave; McMahon, Peter; Milgrome, Oren; Pierson, Tom; Randall, Karen; Ross, John; Shostak, Seth; Siemion, Andrew; Smolek, Ken; Tarter, Jill; Thornton, Douglas; Urry, Lynn; Vitouchkine, Artyom; Wadefalk, Niklas; Weinreb, Sandy; Welch, Jack; Werthimer, Dan; Williams, Peter K G; Wright, Melvyn

    2010-01-01

    The Pi GHz Sky Survey (PiGSS) is a key project of the Allen Telescope Array. PiGSS is a 3.1 GHz survey of radio continuum emission in the extragalactic sky with an emphasis on synoptic observations that measure the static and time-variable properties of the sky. During the 2.5-year campaign, PiGSS will twice observe ~250,000 radio sources in the 10,000 deg^2 region of the sky with b > 30 deg to an rms sensitivity of ~1 mJy. Additionally, sub-regions of the sky will be observed multiple times to characterize variability on time scales of days to years. We present here observations of a 10 deg^2 region in the Bootes constellation overlapping the NOAO Deep Wide Field Survey field. The PiGSS image was constructed from 75 daily observations distributed over a 4-month period and has an rms flux density between 200 and 250 microJy. This represents a deeper image by a factor of 4 to 8 than we will achieve over the entire 10,000 deg^2. We provide flux densities, source sizes, and spectral indices for the 425 sources d...

  17. Empirical modeling of the storm time innermost magnetosphere using Van Allen Probes and THEMIS data: Eastward and banana currents

    Science.gov (United States)

    Stephens, G. K.; Sitnov, M. I.; Ukhorskiy, A. Y.; Roelof, E. C.; Tsyganenko, N. A.; Le, G.

    2016-01-01

    The structure of storm time currents in the inner magnetosphere, including its innermost region inside 4RE, is studied for the first time using a modification of the empirical geomagnetic field model TS07D and new data from Van Allen Probes and Time History of Events and Macroscale Interactions during Substorms missions. It is shown that the model, which uses basis-function expansions instead of ad hoc current modules to approximate the magnetic field, consistently improves its resolution and magnetic field reconstruction with the increase of the number of basis functions and resolves the spatial structure and evolution of the innermost eastward current. This includes a connection between the westward ring current flowing largely at and the eastward ring current concentrated at resulting in a vortex current pattern. A similar pattern coined `banana current' was previously inferred from the pressure distributions based on the energetic neutral atom imaging and first-principles ring current simulations. The morphology of the equatorial currents is dependent on storm phase. During the main phase, it is complex, with several asymmetries forming banana currents. Near SYM-H minimum, the banana current is strongest, is localized in the evening-midnight sector, and is more structured compared to the main phase. It then weakens during the recovery phase resulting in the equatorial currents to become mostly azimuthally symmetric.

  18. Three Neoclassicisms. Exploring the Possibilities of a Comparative Average Shot Length Through Clint Eastwood, Brian De Palma and Woody Allen

    Directory of Open Access Journals (Sweden)

    Agustín Rubio Alcover

    2013-07-01

    Full Text Available This study is intended to compare the complete filmographies of the three American directors whose works are analyzed. They are Clint Eastwood, Brian De Palma and Woody Allen. We define the approach as a trampoline for leaping over the wall of a difficult conceptual and methodological blind alley—an understanding of movie editors and their task, but above all their contribution. Their work is disguised as something merely technical and obvious but, even in the best of cases, this attitude never anything other than lazy. It is the analysis route upheld and cultivated by the David Bordwell and Barry Salt that we are prepared to travel along. If we want to abjure an unsustainably radical anti-empiricism without precipitating ourselves into neo-empiricist infantilism or regressing to a chaotic teratology—that is: to try to remain focused on both the wood and the trees—a statistical-type study, aided by the latest-generation digital and computer tools and, more specifically, an Average Shot Length study (which we will refer to from now on with the acronym ASL appears to us an objective and, consequently, literally unobjectionable criterion. It is probably as reductionist as it is stimulating when it comes to reaching conclusions that are non-definitive but undoubtedly worthy of interest, because, faced with the subjectivity of the analysis and at the general macroscopic level of the movie, the normative and the standard blends with the deviant, or exceptional.   

  19. ELF/VLF wave propagation at subauroral latitudes: Conjugate observation between the ground and Van Allen Probes A

    Science.gov (United States)

    Martinez-Calderon, Claudia; Shiokawa, Kazuo; Miyoshi, Yoshizumi; Keika, Kunihiro; Ozaki, Mitsunori; Schofield, Ian; Connors, Martin; Kletzing, Craig; Hanzelka, Miroslav; Santolik, Ondrej; Kurth, William S.

    2016-06-01

    We report simultaneous observation of ELF/VLF emissions, showing similar spectral and frequency features, between a VLF receiver at Athabasca (ATH), Canada, (L = 4.3) and Van Allen Probes A (Radiation Belt Storm Probes (RBSP) A). Using a statistical database from 1 November 2012 to 31 October 2013, we compared a total of 347 emissions observed on the ground with observations made by RBSP in the magnetosphere. On 25 February 2013, from 12:46 to 13:39 UT in the dawn sector (04-06 magnetic local time (MLT)), we observed a quasiperiodic (QP) emission centered at 4 kHz, and an accompanying short pulse lasting less than a second at 4.8 kHz in the dawn sector (04-06 MLT). RBSP A wave data showed both emissions as right-hand polarized with their Poynting vector earthward to the Northern Hemisphere. Using cross-correlation analysis, we did, for the first time, time delay analysis of a conjugate ELF/VLF event between ground and space, finding +2 to +4 s (ATH first) for the QP and -3 s (RBSP A first) for the pulse. Using backward tracing from ATH to the geomagnetic equator and forward tracing from the equator to RBSP A, based on plasmaspheric density observed by the spacecraft, we validate a possible propagation path for the QP emission which is consistent with the observed time delay.

  20. 'Confessing out the soul to conform to the rhythm of thought': a reading of Allen Ginsberg’s Beat poetry

    Directory of Open Access Journals (Sweden)

    H. Kruger

    2007-07-01

    Full Text Available Much critical writing about the Beat Movement has focused on the strong interrelationship between the literary and social discourses within and around the movement. However, the study of Beat literature also necessitates an awareness of its position within the literary discourse of the twentieth century. Beat writing may be seen as standing in the unstable, shifting territory between two equally unstable, shifting literary movements: modernism and postmodernism. Beat poetry pits itself against high modernism and the New Critical tradition, draws upon some aspects of early avant-garde modernism, and simultaneously remoulds these aspects into what may be regarded as the beginnings of postmodernism in the USA. This article presents a reading of Allen Ginsberg’s Beat poetry against this literary-historical background. A brief general overview of some of the key characteristics of Beat poetry is given, followed by a discussion of a number of Beat poems, organised around some salient features of Ginsberg’s Beat poetry that may be linked to Beat poetry’s position in the transition from modernism to postmodernism.

  1. Occurrence characteristics of outer zone relativistic electron butterfly distribution: A survey of Van Allen Probes REPT measurements

    Science.gov (United States)

    Ni, Binbin; Zou, Zhengyang; Li, Xinlin; Bortnik, Jacob; Xie, Lun; Gu, Xudong

    2016-06-01

    Using Van Allen Probes Relativistic Electron Proton Telescope (REPT) pitch angle resolved electron flux data from September 2012 to March 2015, we investigate in detail the global occurrence pattern of equatorial (|λ| ≤ 3°) butterfly distribution of outer zone relativistic electrons and its potential correlation with the solar wind dynamic pressure. The statistical results demonstrate that these butterfly distributions occur with the highest occurrence rate ~ 80% at ~ 20-04 magnetic local time (MLT) and L > ~ 5.5 and with the second peak (> ~ 50%) at ~ 11-15 MLT of lower L shells ~ 4.0. They can also extend to L = 3.5 and to other MLT intervals but with the occurrence rates predominantly butterfly distributions are likely to peak between 58° and 79° for L = 4.0 and 5.0 and between 37° and 58° for L = 6.0, regardless of the level of solar wind dynamic pressure. Relativistic electron butterfly distributions at L = 4.0 also exhibit a pronounced day-night asymmetry in response to the Pdyn variations. Compared to the significant L shell and MLT dependence of the global occurrence pattern, outer zone relativistic electron butterfly distributions show much less but still discernable sensitivity to Pdyn, geomagnetic activity level, and electron energy, the full understanding of which requires future attempts of detailed simulations that combine and differentiate underlying physical mechanisms of the geomagnetic field asymmetry and scattering by various magnetospheric waves.

  2. Theoretical study to explain how chirality is stored and evolves throughout the radical cascade rearrangement of enyne-allenes.

    Science.gov (United States)

    Gaudel-Siri, Anouk; Campolo, Damien; Mondal, Shovan; Nechab, Malek; Siri, Didier; Bertrand, Michèle P

    2014-10-01

    This article reports a theoretical study to explain how the intrinsic property of chirality is retained throughout the radical cascade rearrangement of an enantiopure chiral enyne-allene (bearing one stereogenic center) selected as a model for this family of reactions. Calculations at the MRPT2/6-31G(d)//CASSCF(10,10)/6-31G(d) level of theory were used to determine the entire reaction pathway which includes singlet state diradicals and closed-shell species. The cascade process involves three elementary steps, i.e., by chronological order: Myers-Saito cycloaromatization (M-S), intramolecular hydrogen atom transfer (HAT), and recombination of the resulting biradical. The enantiospecificity of the reaction results from a double transmission of the stereochemical information, from the original center to an axis and eventually from this axis to the final center. The first two steps lead to a transient diradical intermediate which retains the chirality via the conversion of the original static chirogenic element into a dynamic one, i.e., a center into an axis. The only available routes to the final closed-shell tetracyclic product imply rotations around two σ bonds (σ(C-C) and σ(C-N), bonds β and α respectively). The theoretical calculations confirmed that the formation of the enantiomerically pure product proceeds via the nonracemizing rotation around the σ(C-C) pivot. They ruled out any rotation around the second σ(C-N) pivot. The high level of configurational memory in this rearrangement relies on the steric impediment to the rotation around the C-N bond in the chiral native conformation of the diradical intermediate produced from tandem M-S/1,5-HAT. PMID:25198708

  3. Combined Experimental and Theoretical Study on the Formation of the Elusive 2-Methyl-1-silacycloprop-2-enylidene Molecule under Single Collision Conditions via Reactions of the Silylidyne Radical (SiH; X(2)Π) with Allene (H2CCCH2; X(1)A1) and D4-Allene (D2CCCD2; X(1)A1).

    Science.gov (United States)

    Yang, Tao; Dangi, Beni B; Maksyutenko, Pavlo; Kaiser, Ralf I; Bertels, Luke W; Head-Gordon, Martin

    2015-12-17

    The crossed molecular beam reactions of the ground-state silylidyne radical (SiH; X(2)Π) with allene (H2CCCH2; X(1)A1) and D4-allene (D2CCCD2; X(1)A1) were carried out at collision energies of 30 kJ mol(-1). Electronic structure calculations propose that the reaction of silylidyne with allene has no entrance barrier and is initiated by silylidyne addition to the π electron density of allene either to one carbon atom (C1/C2) or to both carbon atoms simultaneously via indirect (complex forming) reaction dynamics. The initially formed addition complexes isomerize via two distinct reaction pathways, both leading eventually to a cyclic SiC3H5 intermediate. The latter decomposes through a loose exit transition state via an atomic hydrogen loss perpendicularly to the plane of the decomposing complex (sideways scattering) in an overall exoergic reaction (experimentally: -19 ± 13 kJ mol(-1); computationally: -5 ± 3 kJ mol(-1)). This hydrogen loss yields the hitherto elusive 2-methyl-1-silacycloprop-2-enylidene molecule (c-SiC3H4), which can be derived from the closed-shell cyclopropenylidene molecule (c-C3H2) by replacing a hydrogen atom with a methyl group and the carbene carbon atom by the isovalent silicon atom. The synthesis of the 2-methyl-1-silacycloprop-2-enylidene molecule in the bimolecular gas-phase reaction of silylidyne with allene enriches our understanding toward the formation of organosilicon species in the gas phase of the interstellar medium in particular via exoergic reactions of no entrance barrier. This facile route to 2-methyl-1-silacycloprop-2-enylidene via a silylidyne radical reaction with allene opens up a versatile approach to form hitherto poorly characterized silicon-bearing species in extraterrestrial environments; this reaction class might represent the missing link, leading from silicon-bearing radicals via organosilicon chemistry eventually to silicon-carbon-rich interstellar grains even in cold molecular clouds where temperatures are as

  4. Combined Experimental and Theoretical Study on the Formation of the Elusive 2-Methyl-1-silacycloprop-2-enylidene Molecule under Single Collision Conditions via Reactions of the Silylidyne Radical (SiH; X(2)Π) with Allene (H2CCCH2; X(1)A1) and D4-Allene (D2CCCD2; X(1)A1).

    Science.gov (United States)

    Yang, Tao; Dangi, Beni B; Maksyutenko, Pavlo; Kaiser, Ralf I; Bertels, Luke W; Head-Gordon, Martin

    2015-12-17

    The crossed molecular beam reactions of the ground-state silylidyne radical (SiH; X(2)Π) with allene (H2CCCH2; X(1)A1) and D4-allene (D2CCCD2; X(1)A1) were carried out at collision energies of 30 kJ mol(-1). Electronic structure calculations propose that the reaction of silylidyne with allene has no entrance barrier and is initiated by silylidyne addition to the π electron density of allene either to one carbon atom (C1/C2) or to both carbon atoms simultaneously via indirect (complex forming) reaction dynamics. The initially formed addition complexes isomerize via two distinct reaction pathways, both leading eventually to a cyclic SiC3H5 intermediate. The latter decomposes through a loose exit transition state via an atomic hydrogen loss perpendicularly to the plane of the decomposing complex (sideways scattering) in an overall exoergic reaction (experimentally: -19 ± 13 kJ mol(-1); computationally: -5 ± 3 kJ mol(-1)). This hydrogen loss yields the hitherto elusive 2-methyl-1-silacycloprop-2-enylidene molecule (c-SiC3H4), which can be derived from the closed-shell cyclopropenylidene molecule (c-C3H2) by replacing a hydrogen atom with a methyl group and the carbene carbon atom by the isovalent silicon atom. The synthesis of the 2-methyl-1-silacycloprop-2-enylidene molecule in the bimolecular gas-phase reaction of silylidyne with allene enriches our understanding toward the formation of organosilicon species in the gas phase of the interstellar medium in particular via exoergic reactions of no entrance barrier. This facile route to 2-methyl-1-silacycloprop-2-enylidene via a silylidyne radical reaction with allene opens up a versatile approach to form hitherto poorly characterized silicon-bearing species in extraterrestrial environments; this reaction class might represent the missing link, leading from silicon-bearing radicals via organosilicon chemistry eventually to silicon-carbon-rich interstellar grains even in cold molecular clouds where temperatures are as

  5. Stereoselective Synthesis of Chiral Polycyclic Indolic Architectures through Pd(0) -Catalyzed Tandem Deprotection/Cyclization of Tetrahydro-β-carbolines on Allenes.

    Science.gov (United States)

    Gobé, Valérian; Guinchard, Xavier

    2015-06-01

    Enantioenriched N-allyl tetrahydro-β-carbolines were prepared by chiral phosphoric acid-catalyzed Pictet-Spengler reactions. The compounds undergo Pd(0) -catalyzed cyclizations through a tandem deprotection/cyclization process. The regioselectivity of the attack is controlled by the chain length and by the substitution pattern of the allene function. Products resulting from 5-exo- or 6-exo-attack were obtained with diastereoisomeric ratio up to 95:5. Azepinopyrrido[3,4-b]indoles were obtained by 7-endo-cyclizations. PMID:25900665

  6. Palladium(II)-Catalyzed Annulation between ortho-Alkenylphenols and Allenes. Key Role of the Metal Geometry in Determining the Reaction Outcome

    Science.gov (United States)

    2016-01-01

    2-Alkenylphenols react with allenes, upon treatment with catalytic amounts of Pd(II) and Cu(II), to give benzoxepine products in high yields and with very good regio- and diastereoselectivities. This contrasts with the results obtained with Rh catalysts, which provided chromene-like products through a pathway involving a β-hydrogen elimination step. Computational studies suggest that the square planar geometry of the palladium is critical to favor the reductive elimination process required for the formation of the oxepine products.

  7. The Allen Telescope Array

    Science.gov (United States)

    Bower, Geoffrey C.; Allen Telescope Array Team

    2010-01-01

    The ATA is a 42-element centimeter wavelength array located in Hat Creek, California and jointly operated by UC Berkeley Radio Astronomy Laboratory and the SETI Institute. Since the ATA dedication in Fall 2007, activities have been focused on commissioning the array, retrofitting a handful of components including the feed, developing an operations model, creation of pipeline processing for correlator imaging data, early science observations, and launching of the major surveys for which the telescope was built. The retrofit of the feed improves feed mechanical robustness as well as high frequency performance. Science programs launched include imaging radio transient and static sky surveys (ATATS and PiGSS), commensal SETI and transient surveys of the Galactic Center, targeted SETI observations of nearby stars, the Fly's Eye transient survey, broadband spectra of nearby star-forming galaxies, polarimetric observations of bright radio sources, observations of hydrogen in nearby galaxies and galaxy groups, molecular line observations in the Galaxy, and observations of Jupiter and the Moon. The baseline Square Kilometer Array (SKA) design, a large-N-small-diameter (LNSD) array with wide-band single-pixel feeds and an offset Gregorian antenna, bears a strong resemblance to the ATA. Additional ATA contributions to the SKA include configuration studies for LNSD arrays, the use of fiber optics for broadband data transmission, the use of flexible FPGA-based digital electronics, passive cooling of antennas, and implementation of commensal observing modes. The ATA is currently used for exploration of calibration and imaging algorithms necessary for the SKA. I will summarize current technical status and performance, the results from early science and surveys, and ATA contributions to SKA development.

  8. TERRAIN, ALLEN COUNTY, OH

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Terrain data, as defined in FEMA Guidelines and Specifications, Appendix N: Data Capture Standards, describes the digital topographic data that was used to create...

  9. What have we learned about the energetic particle dynamics in the inner belt and slot region from Van Allen Probes and CSSWE missions?

    Science.gov (United States)

    Li, Xinlin; Baker, Daniel N.; Kanekal, Shrikanth; Fennell, Joseph; Selesnick, Richard; Claudepierre, Seth; Blake, Bernard; Zhao, Hong; Jaynes, Allison

    2016-07-01

    Comprehensive measurements of energetic protons (10s of MeV) in the inner belt (Lonboard Van Allen Probes, in a geo-transfer-like orbit, revealed new features of these energetic protons in terms of their spectrum distribution, spatial distribution, pitch angle distribution, and their different source populations. Concurrent measurements from the Relativistic Electron-Proton Telescope integrated little experiment (REPTile) on board the Colorado Student Space Weather Experiment (CSSWE) CubeSat, in a highly inclined low Earth orbit, demonstrated that there exist sub-MeV electrons in the inner belt and their flux level is orders of magnitude higher than the background associated with the inner belt protons, while higher energy electron (>1.6 MeV) measurements cannot be distinguished from the background. Analysis on sub-MeV electrons data in the inner belt and slot region from the Magnetic Electron Ion Spectrometer (MagEIS) on board Van Allen Probes revealed rather complicated pitch angle distribution of these energetic electrons, with the 90 deg-minimum (butterfly) pitch angle distribution dominating near the magnetic equator. These are part of a summary of the most recent measurements and understanding of the dynamics of energetic particles in the inner zone and slot region to be exhibited and discussed in this presentation.

  10. A test of Allen's rule in ectotherms: the case of two south American Melanopline Grasshoppers (Orthoptera: Acrididae) with partially overlapping geographic ranges.

    Science.gov (United States)

    Bidau, Claudio J; Martí, Dardo A

    2008-01-01

    We studied the geographic variation of three morphometric characters in relation to body size in two South American grasshoppers (Acrididae), Dichroplus vittatus Bruner and D. pratensis Bruner to test Allen's rule in these ectotherms. Since both species follow the converse to Bergmann's rule owing to latitudinal and/or altitudinal variation in time available for growth and reproduction, geographic variation in body size proportions of protruding parts may obey to differential allometric growth in different geographic areas. Alternatively, it could reflect true Allenian variation related to thermoregulation. Body proportions were studied by correlation/regression analyses with geographic and climatic variables. In D. pratensis, body proportions increased with latitude and decreased with altitude. These results probably obey to the effects of water balance and seasonality on final body size, and on the allometric growth of the three studied characters not being related to thermoregulation. In D. vittatus, a generally non-significant trend towards the decrease of the mean proportions of all three characters with increasing latitude was observed. Nevertheless, also in this species, it is probable that the environmental gradient responds to seasonality factors (although not to water balance) that affect the length of growing season and, in consequence, body size and its allometric relationships. We conclude that the regularities in the geographic distribution of body proportions of D. pratensis and D. vittatus do not follow Allen's rule in the sense of thermoregulation, and result from variables that determine growing season length and the allometric growth of different body parts. PMID:18813738

  11. Characteristics of ring current protons and oxygen ions during the 7 January 2015 and 17 March 2015 storms: Van Allen Probes/RBSPICE observations

    Science.gov (United States)

    Keika, K.; Seki, K.; Nose, M.; Machida, S.; Miyoshi, Y.; Lanzerotti, L. J.; Mitchell, D. G.; Gkioulidou, M.; Gerrard, A. J.; Manweiler, J. W.

    2015-12-01

    We investigate enhancements and losses of energetic (~50-~500 keV) protons and oxygen ions during two intense storms on January 7 and March 17 in 2015. We use proton and oxygen ion data from RBSPICE onboard Van Allen Probes. During the January 7 storm (Dstmin = -99 nT), Van Allen Probes explored the inner magnetosphere on the night side, with both spacecraft located around midnight at apogee. Their orbits were in opposite phase. RBSPICE data are available from both spacecraft during the rapid recovery of the storm. We analyze energy spectra of both species to identify whether the ring current is symmetric or not, and determine the dominant loss process. During the March 17 storm (Dstmin = -223 nT), Van Allen Probes traveled in the pre-midnight sector during the outbound paths and around midnight during the inbound path. The orbits of the two spacecraft were in opposite phase. The Dst index during the storm showed a two-step decrease with the first minimum at 9 UT and the second at 22 UT. Enhancements of ring current ions began at RBSPICE-B at ~7 UT, and RBSPICE-A entered the ring current region at ~9 UT. The RBSPICE data show penetration of energetic protons (μ~0.1 keV/nT) down to L~4 during the first storm development. Protons penetrated more deeply (as low as L~3) during the second enhancement. The protons, which we confirmed made a dominant contribution to energy density at L = 3-4, are more enhanced in flux around the storm maximum. The flux of 200-400 keV oxygen ions was enhanced and localized around midnight near the end of the first storm development. Oxygen ion enhancements during the second development were seen in a wide range of MLT (pre-midnight to midnight). We examine the evolution of ion energy spectra to identify whether each phase of the multi-step storm development was due to deep penetration of transport/injections, density enhancements, or/and non-adiabatic acceleration of protons and oxygen ions.

  12. The Arabidopsis male-sterile mutant dde2-2 is defective in the ALLENE OXIDE SYNTHASE gene encoding one of the key enzymes of the jasmonic acid biosynthesis pathway

    DEFF Research Database (Denmark)

    von Malek, Bernadette; van der Graaff, Eric; Schneitz, Kay;

    2002-01-01

    exhibits a male-sterile phenotype. The dde2-2 phenotype can be rescued by application of methyl jasmonate, indicating that the mutant is affected in jasmonic acid biosynthesis. The combination of genetic mapping and a candidate-gene approach identified a frameshift mutation in the ALLENE OXIDE SYNTHASE...

  13. Relativistic electron microbursts and variations in trapped MeV electron fluxes during the 8-9 October 2012 storm: SAMPEX and Van Allen Probes observations

    Science.gov (United States)

    Kurita, Satoshi; Miyoshi, Yoshizumi; Blake, J. Bernard; Reeves, Geoffery D.; Kletzing, Craig A.

    2016-04-01

    It has been suggested that whistler mode chorus is responsible for both acceleration of MeV electrons and relativistic electron microbursts through resonant wave-particle interactions. Relativistic electron microbursts have been considered as an important loss mechanism of radiation belt electrons. Here we report on the observations of relativistic electron microbursts and flux variations of trapped MeV electrons during the 8-9 October 2012 storm, using the SAMPEX and Van Allen Probes satellites. Observations by the satellites show that relativistic electron microbursts correlate well with the rapid enhancement of trapped MeV electron fluxes by chorus wave-particle interactions, indicating that acceleration by chorus is much more efficient than losses by microbursts during the storm. It is also revealed that the strong chorus wave activity without relativistic electron microbursts does not lead to significant flux variations of relativistic electrons. Thus, effective acceleration of relativistic electrons is caused by chorus that can cause relativistic electron microbursts.

  14. “The Great Palace of American Civilization”: Allen Eaton’s Arts and Crafts of the Homelands, 1919-1932

    Directory of Open Access Journals (Sweden)

    Diana Greenwold

    2014-06-01

    Full Text Available Allen Eaton’s Arts and Crafts of the Homelands exhibition premiered in Buffalo, New York in 1919, where it drew record crowds to the Albright Gallery. Iterations of the display soon opened in Albany, Rochester, and then in several other cities across the United States. Arts and Crafts of the Homelands showcased European craftwork of local immigrant groups to celebrate a model of early twentieth-century American pluralism. This article examines the aims of exhibit organizers, immigrant presenters, and native-born visitors to these exhibitions. The structure of the displays—which highlighted domestic tableaux of old-world objects—obfuscated the contemporary contributions of immigrant groups to American cultural and economic forums. I argue, however, that local groups took advantage of the exhibit’s performance spaces to assert their active presence in American public life. 

  15. A telescopic and microscopic examination of acceleration in the June 2015 geomagnetic storm: Magnetospheric Multiscale and Van Allen Probes study of substorm particle injection

    Science.gov (United States)

    Baker, D. N.; Jaynes, A. N.; Turner, D. L.; Nakamura, R.; Schmid, D.; Mauk, B. H.; Cohen, I. J.; Fennell, J. F.; Blake, J. B.; Strangeway, R. J.; Russell, C. T.; Torbert, R. B.; Dorelli, J. C.; Gershman, D. J.; Giles, B. L.; Burch, J. L.

    2016-06-01

    An active storm period in June 2015 showed that particle injection events seen sequentially by the four (Magnetospheric Multiscale) MMS spacecraft subsequently fed the enhancement of the outer radiation belt observed by Van Allen Probes mission sensors. Several episodes of significant southward interplanetary magnetic field along with a period of high solar wind speed (Vsw ≳ 500 km/s) on 22 June occurred following strong interplanetary shock wave impacts on the magnetosphere. Key events on 22 June 2015 show that the magnetosphere progressed through a sequence of energy-loading and stress-developing states until the entire system suddenly reconfigured at 19:32 UT. Energetic electrons, plasma, and magnetic fields measured by the four MMS spacecraft revealed clear dipolarization front characteristics. It was seen that magnetospheric substorm activity provided a "seed" electron population as observed by MMS particle sensors as multiple injections and related enhancements in electron flux.

  16. Computing transition rates for the 1-D stochastic Ginzburg--Landau--Allen--Cahn equation for finite-amplitude noise with a rare event algorithm

    CERN Document Server

    Rolland, J; Simonnet, E

    2015-01-01

    In this paper we compute and analyse the transition rates and duration of reactive trajectories of the stochastic 1-D Allen-Cahn equations for both the Freidlin-Wentzell regime (weak noise or temperature limit) and finite-amplitude white noise, as well as for small and large domain. We demonstrate that extremely rare reactive trajectories corresponding to direct transitions between two metastable states are efficiently computed using an algorithm called adaptive multilevel splitting. This algorithm is dedicated to the computation of rare events and is able to provide ensembles of reactive trajectories in a very efficient way. In the small noise limit, our numerical results are in agreement with large-deviation predictions such as instanton-like solutions, mean first passages and escape probabilities. We show that the duration of reactive trajectories follows a Gumbel distribution like for one degree of freedom systems. Moreover, the mean duration growths logarithmically with the inverse temperature. The prefa...

  17. Van Allen Probe measurements of the electric drift E × B/B2 at Arecibo's L = 1.4 field line coordinate

    Science.gov (United States)

    Lejosne, Solène; Mozer, F. S.

    2016-07-01

    We have used electric and magnetic measurements by Van Allen Probe B from 2013 to 2014 to examine the equatorial electric drift E × B/B2 at one field line coordinate set to Arecibo's incoherent scatter radar location (L = 1.43). We report on departures from the traditional picture of corotational motion with the Earth in two ways: (1) the rotational angular speed is found to be 10% smaller than the rotational angular speed of the Earth, in agreement with previous works on plasmaspheric notches, and (2) the equatorial electric drift displays a dependence in magnetic local time, with a pattern consistent with the mapping of the Arecibo ionosphere dynamo electric fields along equipotential magnetic field lines. The electric fields due to the ionosphere dynamo are therefore expected to play a significant role when discussing, for instance, the structure and dynamics of the plasmasphere or the transport of trapped particles in the inner belt.

  18. Hydrogeologic framework and water quality of the Vermont Army National Guard Ethan Allen Firing Range, northern Vermont, October 2002 through December 2003

    Science.gov (United States)

    Clark, Stewart F.; Chalmers, Ann; Mack, Thomas J.; Denner, Jon C.

    2005-01-01

    The Ethan Allen Firing Range of the Vermont Army National Guard is a weapons-testing and training facility in a mountainous region of Vermont that has been in operation for about 80 years. The hydrologic framework and water quality of the facility were assessed between October 2002 and December 2003. As part of the study, streamflow was continuously measured in the Lee River and 24 observation wells were installed at 19 locations in the stratified drift and bedrock aquifers to examine the hydrogeology. Chemical analyses of surface water, ground water, streambed sediment, and fish tissue were collected to assess major ions, trace elements, nutrients, and volatile and semivolatile compounds. Sampling included 5 surface-water sites sampled during moderate and low-flow conditions; streambed-sediment samples collected at the 5 surface-water sites; fish-tissue samples collected at 3 of the 5 surface-water sites; macroinvertebrates collected at 4 of the 5 surface-water sites; and ground-water samples collected from 10 observation wells, and samples collected at all surface- and ground-water sites. The hydrogeologic framework at the Ethan Allen Firing Range is dominated by the upland mountain and valley setting of the site. Bedrock wells yield low to moderate amounts of water (0 to 23 liters per minute). In the narrow river valleys, layered stratified-drift deposits of sand and gravel of up to 18 meters thick fill the Lee River and Mill Brook Valleys. In these deposits, the water table is generally within 3 meters below the land surface and overall ground-water flow is from east to west. Streamflow in the Lee River averaged 0.72 cubic meters per second (25.4 cubic feet per second) between December 2002 and December 2003. Streams are highly responsive to precipitation events in this mountainous environment and a comparison with other nearby watersheds shows that Lee River maintains relatively high streamflow during dry periods. Concentrations of trace elements and nutrients

  19. Upcoming observations of whistler-mode waves in the outer Van Allen belt: multicomponent wave analyzer ELMAVAN for the Resonance mission

    Science.gov (United States)

    Santolik, Ondrej; Korepanov, Valery; Chugunin, Dmitriy; Kolmasova, Ivana; Uhlir, Ludek; Pronenko, Vira; Mogilevsky, Mikhail; Lan, Radek; Boychev, Boycho

    The instrument ELMAVAN is being prepared at the Institute of Atmospheric Physics, Prague in the frame of the Russian Resonance project with international participation. The aim of this four-spacecraft mission is to investigate properties of wave-particle interactions and plasma dynamics in the inner magnetosphere of the Earth with the focus on phenomena occurring within the same flux tube of the Earth's magnetic field. The wave emissions attract increasing attention because of their influence on the dynamics of the Earth’s radiation belts. The Resonance project therefore represents an excellent opportunity for the magnetospheric research, and together with the recently launched two-spacecraft US mission Van Allen Probes, it will contribute to our understanding of the Earth’s Van Allen radiation belts and the inner magnetosphere. ELMAVAN will measure intensity, polarization, coherence, and propagation properties of waves in magnetospheric plasmas. Three orthogonal magnetic search coil antennas and four electric monopoles will be used for the measurements. The instrument will measure fluctuations of the electric and magnetic field in the frequency range 10 Hz - 20 kHz. The scientific motivation is to investigate properties of whistler-mode chorus and hiss, and both equatorial and auroral emissions. Nonlinear wave-particle interactions will be the main target of these measurements. The input signals of ELMAVAN will consist of 3 analog signals from orthogonal magnetic search coil antennas and 4 analog signals from electric monopoles. The instrument ELMAVAN uses the state of the art electronics and mechanical design taking into account specific requirements for the orbit inside the radiation belts. From this point of view this instrument will also be important as a technological experiment. Engineering model of the analyzer was developed and tested in 2012-2013. Qualification model and the flight models are under preparation.

  20. Comparing Local-Time and Storm-Phase Distributions of EMIC Waves Observed by Van Allen Probes A, GOES-13, and Halley, Antarctica

    Science.gov (United States)

    Ohnsted, M.; Engebretson, M. J.; Posch, J. L.; Lessard, M.; Singer, H. J.; Kletzing, C.; Smith, C. W.; Horne, R. B.

    2015-12-01

    Electromagnetic ion cyclotron (EMIC) waves are expected to be highly efficient in depleting the ring current and in removing outer radiation belt electrons. However, the distribution of these waves in subauroral regions has not been well characterized. In this study we present 0-5 Hz magnetic field data from the Van Allen Probes A (RBSP A) spacecraft (in elliptical equatorial orbit with apogee at 5.8 RE), 0-1 Hz data from GOES-13 (in geosynchronous orbit), and 0-5 Hz data from Halley, Antarctica (L ~4.6), during the first full local-time precession of the Van Allen Probes from October 2012 through July 2014. The considerably different hourly local time vs. L distributions observed point to distinct locations and geomagnetic activity-dependent patterns of EMIC wave activity. GOES-13 wave occurrences exhibited a broad peak in the noon-to-dusk sector. He+ band events peaked near dusk, while H+ band waves peaked near noon, with a secondary peak centered near dawn. More EMIC waves occurred during storm main phase in the He+ band (5%) than in the H+ band (1%), and 80% and 89% of the He+ and H+ band waves, respectively, occurred under late storm recovery or quiet conditions. During all storm phases the local time occurrence patterns of Halley resembled those of He+ and H+ band waves, respectively, at GOES-13. The relatively few wave events at Halley with f > 1.0 Hz occurred at all local times, but with a modest, broad peak near dawn. Roughly 90% of both the 1570 Halley events Halley events > 1.0 Hz occurred during late storm recovery and quiet conditions. Events during compressions at GOES-13 (10%), Halley (6%), and RBSP A (6%) peaked near local noon, but with a secondary peak near midnight. Waves observed by RBSP A were distributed rather evenly in local time in all L shell ranges between 3 and 6, and the percentage occurring during late storm recovery or quiet conditions was only 65%. We interpret the difference in event occurrence during these latter storm phases

  1. What is an exhibition? Dealing with how people experience art, artistic works, making art and the appreciation of things, via a contextualisation of Allen Carlson and Emmanuel Kant aesthetic ideas and 21st century art theory.

    OpenAIRE

    Johnström, Oskar

    2013-01-01

    This written thesis is an observation on Allen Carlson, and Emmanuelle Kant’s aesthetic theories alongside and observation of art and the everyday. The main focus of the research is to gain a better understanding surrounding these topic matters, concerning our experience of art in relation to the experience of our surrounding. As such does our experience become affected when participating in specific activates.

  2. Valor da oximetria de pulso na avaliação da perfusão da mão para retirada da artéria radial: O teste de Allen é satisfatório?

    Directory of Open Access Journals (Sweden)

    Renato Bauab DAUAR

    1998-07-01

    Full Text Available Com o crescimento da utilização da artéria radial como enxerto em operações de revascularização tornou-se importante a avaliação fidedigna da integridade da arcada palmar em cada paciente a fim de se prevenir complicações vasculares da mão. Classicamente, utiliza-se para esta finalidade o teste de Allen, que é baseado em avaliação subjetiva da coloração da mão ao se comprimir os pulsos radial e ulnar e, portanto, mais sujeitos a erros de interpretação. Com a finalidade de avaliação objetiva, propusemos a realização do teste, analisando-se a perfusão através da oximetria de pulso, método simples e facilmente disponível em centro cirúrgico. Objetivo: Os autores apresentam uma nova proposta para avaliação da perfusão e integridade da arcada palmar com a utilização do oxímetro de pulso e comparam os dados obtidos por este método com os do teste de Allen. Método: Foram estudadas 50 artérias radiais, 50 artérias ulnares de 25 pacientes em decúbito dorsal, com idade igual ou superior a 45 anos, sendo 19 do sexo masculino e 6 do sexo feminino, em condições cardio-respiratórias estáveis e sem alterações vasculares periféricas conhecidas em membros superiores. O oxímetro utilizado foi o da marca Ohmeda, sendo o Doppler portátil de fluxo contínuo da Medical Eletronics. A princípio colocou-se o dedal do oxímetro no dedo indicador de cada mão anotando-se a saturação que chamamos de inicial. Verificou-se ao Doppler os pulsos radial e ulnar. Foi realizado o teste de Allen em cada mão comprimindo-se digitalmente ambas as artérias, com o oxímetro no 2º dedo e observando-se o desaparecimento da onda de pulso. Após isso, descomprimiu-se a artéria ulnar retornando a onda de pulso e medindo-se a saturação final. Houve queda de 0 a 2 pontos, no valor da saturação, em 96% dos casos. O Doppler foi utilizado distalmente à compressão da artéria radial mostrando não haver fluxo nesta artéria. Resultado

  3. Uranium Metalla-Allenes with Carbene Imido R2 C=U(IV) =NR' Units (R=Ph2 PNSiMe3 ; R'=CPh3 ): Alkali-Metal-Mediated Push-Pull Effects with an Amido Auxiliary.

    Science.gov (United States)

    Lu, Erli; Tuna, Floriana; Lewis, William; Kaltsoyannis, Nikolas; Liddle, Stephen T

    2016-08-01

    We report uranium(IV)-carbene-imido-amide metalla-allene complexes [U(BIPM(TMS) )(NCPh3 )(NHCPh3 )(M)] (BIPM(TMS) =C(PPh2 NSiMe3 )2 ; M=Li or K) that can be described as R2 C=U=NR' push-pull metalla-allene units, as organometallic counterparts of the well-known push-pull organic allenes. The solid-state structures reveal that the R2 C=U=NR' units adopt highly unusual cis-arrangements, which are also reproduced by gas-phase theoretical studies conducted without the alkali metals to remove their potential structure-directing roles. Computational studies confirm the double-bond nature of the U=NR' and U=CR2 interactions, the latter increasingly attenuated by potassium then lithium when compared to the hypothetical alkali-metal-free anion. Combined experimental and theoretical data show that the push-pull effect induced by the alkali metal cations and amide auxiliary gives a fundamental and tunable structural influence over the C=U(IV) =N units. PMID:27403746

  4. Depositional Model for the Middle Eocene Oberlin Sand in Northwest Oberlin Field and Adjacent Areas, Allen Parish, Louisiana: A Well-log and Seismic Analysis

    Science.gov (United States)

    McVey, Timothy Keith

    The depositional environment of the middle to late Eocene Oberlin sand of Northwest Oberlin Field and Pilgrim Church Field in central Allen Parish, Louisiana, was investigated. The depositional environment of the Oberlin sand has been interpreted from observations of spontaneous potential log signatures, conventional core reports, paleontological reports, shape of isochore maps, coherency extraction attribute, amplitude extraction attribute, and multiple seismic and subsurface cross sections. Focus is centered on the juxtaposition of component sand bodies and their proximity to the interdistributary and prodelta environments. Sand bodies include distributary channels, distributary mouth bars, crevasse subdeltas and shelfal bars and are interpreted to be the products of lower deltaic and shelf processes. The results of this study are based on seismic analysis, display techniques and subsurface maps calibrated to well logs, models, and recognition criteria of modern and ancient depositional environments previously described in the regional literature. The integration of all available data provides an objective and systematic approach detailing the origin, lateral extent, geometry and architecture of the Oberlin sand in the lower deltaic plain and shelf environments. The results of this study may be applicable to similar age sands on trend with the study area. Understanding of sand component types of the lower deltaic and shelf environments is vital to exploration success and development optimization of hydrocarbon bearing reservoirs.

  5. The Allen Telescope Array Twenty-centimeter Survey - A 690-Square-Degree, 12-Epoch Radio Dataset - I: Catalog and Long-Duration Transient Statistics

    CERN Document Server

    Croft, Steve; Ackermann, Rob; Atkinson, Shannon; Backer, Don; Backus, Peter; Barott, William C; Bauermeister, Amber; Blitz, Leo; Bock, Douglas; Bradford, Tucker; Cheng, Calvin; Cork, Chris; Davis, Mike; DeBoer, Dave; Dexter, Matt; Dreher, John; Engargiola, Greg; Fields, Ed; Fleming, Matt; Forster, James R; Gutierrez-Kraybill, Colby; Harp, Gerry; Helfer, Tamara; Hull, Chat; Jordan, Jane; Jorgensen, Susanne; Keating, Garrett; Kilsdonk, Tom; Law, Casey; van Leeuwen, Joeri; Lugten, John; MacMahon, Dave; McMahon, Peter; Milgrome, Oren; Pierson, Tom; Randall, Karen; Ross, John; Shostak, Seth; Siemion, Andrew; Smolek, Ken; Tarter, Jill; Thornton, Douglas; Urry, Lynn; Vitouchkine, Artyom; Wadefalk, Niklas; Welch, Jack; Werthimer, Dan; Whysong, David; Williams, Peter K G; Wright, Melvyn

    2010-01-01

    We present the Allen Telescope Array Twenty-centimeter Survey (ATATS), a multi-epoch (12 visits), 690 square degree radio image and catalog at 1.4GHz. The survey is designed to detect rare, very bright transients as well as to verify the capabilities of the ATA to form large mosaics. The combined image using data from all 12 ATATS epochs has RMS noise sigma = 3.94mJy / beam and dynamic range 180, with a circular beam of 150 arcsec FWHM. It contains 4408 sources to a limiting sensitivity of S = 20 mJy / beam. We compare the catalog generated from this 12-epoch combined image to the NRAO VLA Sky Survey (NVSS), a legacy survey at the same frequency, and find that we can measure source positions to better than ~20 arcsec. For sources above the ATATS completeness limit, the median flux density is 97% of the median value for matched NVSS sources, indicative of an accurate overall flux calibration. We examine the effects of source confusion due to the effects of differing resolution between ATATS and NVSS on our abi...

  6. Calculating ultra-low-frequency wave power of the compressional magnetic field vs. L and time: multi-spacecraft analysis using the Van Allen probes, THEMIS and GOES

    Science.gov (United States)

    Sarris, Theodore E.; Li, Xinlin

    2016-06-01

    Ultra-low-frequency (ULF) pulsations are critical in radial diffusion processes of energetic particles, and the power spectral density (PSD) of these fluctuations is an integral part of the radial diffusion coefficients and of assimilative models of the radiation belts. Using simultaneous measurements from two Geostationary Operational Environmental Satellites (GOES) geosynchronous satellites, three satellites of the Time History of Events and Macroscale Interactions during Substorms (THEMIS) spacecraft constellation and the two Van Allen probes during a 10-day period of intense geomagnetic activity and ULF pulsations of October 2012, we calculate the PSDs of ULF pulsations at different L shells. By following the time history of measurements at different L it is shown that, during this time, ULF wave power is not enhanced uniformly throughout the magnetosphere but instead is mostly enhanced in the outer L shells, close to the magnetopause, and to a lesser extent in the inner magnetosphere, closer to the plasmapause. Furthermore, by using phase differences between two GOES geosynchronous satellite pairs, we estimate the daily-averaged distribution of power at different azimuthal wave numbers. These results can have significant implications in better defining the effect of radial diffusion in the phase space density of energetic particles for different wave numbers or L shell distributions of ULF power.

  7. Improvement of copper tolerance of Arabidopsis by transgenic expression of an allene oxide cyclase gene, GhAOC1, in upland cotton (Gossypium hirsutum L.

    Directory of Open Access Journals (Sweden)

    Yuange Wang

    2015-08-01

    Full Text Available Allene oxide cyclase (AOC, E 5.3.99.6 is an essential enzyme in the jasmonic acid (JA biosynthetic pathway and mediates a wide range of adaptive responses. In this report, five AOC genes (GhAOC1–GhAOC5 were cloned from upland cotton (Gossypium hirsutum L., sequenced, and characterized. Real-time PCR analysis indicated that the transcripts of GhAOCs were abundantly expressed in roots and less in fibers, and regulated in cotton plants under methyl jasmonate (MeJA and CuCl2 stresses. To investigate the role of GhAOC under copper stress, transgenic Arabidopsis plants overexpressing cotton GhAOC1 under control of the Cauliflower mosaic virus 35S (CaMV 35S promoter were generated. Compared to untransformed plants, GhAOC1-overexpressing Arabidopsis thaliana plants exhibited markedly higher survival rate, shoot fresh weight, shoot dry weight, and photosynthetic efficiency, and reduced cell membrane damage and lipid peroxidation under copper stress. This study provides the first evidence that GhAOC1 plays an important role in copper stress tolerance.

  8. Improvement of copper tolerance of Arabidopsis by transgenic expression of an allene oxide cyclase gene, GhAOC1, in upland cotton (Gossypium hirsutum L.)

    Institute of Scientific and Technical Information of China (English)

    Yuange Wang; Huaihua Liu; Qingguo Xin

    2015-01-01

    Allene oxide cyclase (AOC, E 5.3.99.6) is an essential enzyme in the jasmonic acid (JA) biosynthetic pathway and mediates a wide range of adaptive responses. In this report, five AOC genes (GhAOC1–GhAOC5) were cloned from upland cotton (Gossypium hirsutum L.), sequenced, and characterized. Real-time PCR analysis indicated that the transcripts of GhAOCs were abundantly expressed in roots and less in fibers, and regulated in cotton plants under methyl jasmonate (MeJA) and CuCl2 stresses. To investigate the role of GhAOC under copper stress, transgenic Arabidopsis plants overexpressing cotton GhAOC1 under control of the Cauliflower mosaic virus 35S (CaMV 35S) promoter were generated. Compared to untransformed plants, GhAOC1-overexpressing Arabidopsis thaliana plants exhibited markedly higher survival rate, shoot fresh weight, shoot dry weight, and photosynthetic efficiency, and reduced cell membrane damage and lipid peroxidation under copper stress. This study provides the first evidence that GhAOC1 plays an important role in copper stress tolerance.

  9. Using the cold plasma dispersion relation and whistler mode waves to quantify the antenna sheath impedance of the Van Allen Probes EFW instrument

    Science.gov (United States)

    Hartley, D. P.; Kletzing, C. A.; Kurth, W. S.; Bounds, S. R.; Averkamp, T. F.; Hospodarsky, G. B.; Wygant, J. R.; Bonnell, J. W.; Santolík, O.; Watt, C. E. J.

    2016-05-01

    Cold plasma theory and parallel wave propagation are often assumed when approximating the whistler mode magnetic field wave power from electric field observations. The current study is the first to include the wave normal angle from the Electric and Magnetic Field Instrument Suite and Integrated Science package on board the Van Allen Probes in the conversion factor, thus allowing for the accuracy of these assumptions to be quantified. Results indicate that removing the assumption of parallel propagation does not significantly affect calculated plasmaspheric hiss wave powers. Hence, the assumption of parallel propagation is valid. For chorus waves, inclusion of the wave normal angle in the conversion factor leads to significant alterations in the distribution of wave power ratios (observed/ calculated); the percentage of overestimates decreases, the percentage of underestimates increases, and the spread of values is significantly reduced. Calculated plasmaspheric hiss wave powers are, on average, a good estimate of those observed, whereas calculated chorus wave powers are persistently and systematically underestimated. Investigation of wave power ratios (observed/calculated), as a function of frequency and plasma density, reveals a structure consistent with signal attenuation via the formation of a plasma sheath around the Electric Field and Waves spherical double probes instrument. A simple, density-dependent model is developed in order to quantify this effect of variable impedance between the electric field antenna and the plasma interface. This sheath impedance model is then demonstrated to be successful in significantly improving agreement between calculated and observed power spectra and wave powers.

  10. Gene co-expression analysis identifies brain regions and cell types involved in migraine pathophysiology: a GWAS-based study using the Allen Human Brain Atlas.

    Science.gov (United States)

    Eising, Else; Huisman, Sjoerd M H; Mahfouz, Ahmed; Vijfhuizen, Lisanne S; Anttila, Verneri; Winsvold, Bendik S; Kurth, Tobias; Ikram, M Arfan; Freilinger, Tobias; Kaprio, Jaakko; Boomsma, Dorret I; van Duijn, Cornelia M; Järvelin, Marjo-Riitta R; Zwart, John-Anker; Quaye, Lydia; Strachan, David P; Kubisch, Christian; Dichgans, Martin; Davey Smith, George; Stefansson, Kari; Palotie, Aarno; Chasman, Daniel I; Ferrari, Michel D; Terwindt, Gisela M; de Vries, Boukje; Nyholt, Dale R; Lelieveldt, Boudewijn P F; van den Maagdenberg, Arn M J M; Reinders, Marcel J T

    2016-04-01

    Migraine is a common disabling neurovascular brain disorder typically characterised by attacks of severe headache and associated with autonomic and neurological symptoms. Migraine is caused by an interplay of genetic and environmental factors. Genome-wide association studies (GWAS) have identified over a dozen genetic loci associated with migraine. Here, we integrated migraine GWAS data with high-resolution spatial gene expression data of normal adult brains from the Allen Human Brain Atlas to identify specific brain regions and molecular pathways that are possibly involved in migraine pathophysiology. To this end, we used two complementary methods. In GWAS data from 23,285 migraine cases and 95,425 controls, we first studied modules of co-expressed genes that were calculated based on human brain expression data for enrichment of genes that showed association with migraine. Enrichment of a migraine GWAS signal was found for five modules that suggest involvement in migraine pathophysiology of: (i) neurotransmission, protein catabolism and mitochondria in the cortex; (ii) transcription regulation in the cortex and cerebellum; and (iii) oligodendrocytes and mitochondria in subcortical areas. Second, we used the high-confidence genes from the migraine GWAS as a basis to construct local migraine-related co-expression gene networks. Signatures of all brain regions and pathways that were prominent in the first method also surfaced in the second method, thus providing support that these brain regions and pathways are indeed involved in migraine pathophysiology.

  11. Non-Linear Model for the Disturbance of Electronics in by High Energy Electron Plasmas in the Van Allen Radiation Belts

    Science.gov (United States)

    Atkinson, William

    2009-11-01

    A model is presented that models the disturbance of electrical components by high energy electrons trapped in the Van Allen radiation belts; the model components consists of module computing the electron fluence rate given the altitude, the time of the year, and the sunspot number, a module that transports the electrons through the materials of the electrical component, and a module that computes the charge and electrical fields of the insulating materials as a function of time. A non-linear relationship (the Adameic-Calderwood equation) for the variation of the electrical conductivity with the electrical field strength is used as the field intensities can be quite high due to the small size of the electrical components and the high fluence rate of the electrons. The results show that the electric fields can often be as high as 10 MV/m in materials commonly used in cables such as Teflon and that the field can stay at high levels as long as an hour after the irradiation ends.

  12. Variability of the pitch angle distribution of radiation belt ultrarelativistic electrons during and following intense geomagnetic storms: Van Allen Probes observations

    Science.gov (United States)

    Zou, Z.; Ni, B.; Gu, X.; Zhao, Z.; Zhou, C.

    2015-12-01

    Fifteen month of pitch angle resolved Van Allen Probes Relativistic Electron-Proton Telescope (REPT) measurements of differential electron flux are analyzed to investigate the characteristics of the pitch angle distribution of radiation belt ultrarelativistic(> 2 MeV) electrons during storm conditions and during the long-storm decay. By modeling the ultrarelativistic electron pitch angle distribution as ,where is the equatorial pitch angle we examine the spatiotemporal variations of n value. The results show that in general n values increases with the level of geomagnetic activity. In principle the ultrarelativistic electrons respond to geomagnetic storms by becoming peaked at 90° pitch angle with n-values of 2 - 3 as a supportive signature of chorus acceleration outside the plasmasphere. High n-values also exists inside the plasmasphere, being localized adjacent to the plasmapause and energy dependent, which suggests a significant contribution from electronmagnetic ion cyclotron (EMIC) waves scattering. During quiet periods, n values generally evolve to become small, i.e., 0-1. The slow and long-term decays of the ultrarelativistic electrons after geomagnetic storms, while prominent, produce energy and L-shell-dependent decay time scales in association with the solar and geomagnetic activity and wave-particle interaction processes. At lower L shells inside the plasmasphere, the decay time scales for electrons at REPT energies are generally larger, varying from tens of days to hundreds of days, which can be mainly attributed to the combined effect of hiss-induced pitch angle scattering and inward radial diffusion. As L shell increases to L~3.5, a narrow region exists (with a width of ~0.5 L), where the observed ultrarelativistic electrons decay fastest, possibly resulting from efficient EMIC wave scattering. As L shell continues to increase, generally becomes larger again, indicating an overall slower loss process by waves at high L shells. Our investigation based

  13. Floodplain, Allen County, OHIO, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  14. FLOODPLAIN, Allen COUNTY, KENTUCKY USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Floodplain Mapping/Redelineation study deliverables depict and quantify the flood risks for the study area. The primary risk classifications used are the...

  15. floodzones_allen_FEMA_1999

    Data.gov (United States)

    Louisiana Geographic Information Center — The Q3 Flood Data are derived from the Flood Insurance Rate Maps (FIRMS) published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to...

  16. Van Allen Lecture: Nature's Palette

    Science.gov (United States)

    Sibeck, D. G.; Thomsen, M. F.

    2015-12-01

    Like an artist's palette, Nature has a set of common physical processes to employ to make a magnetosphere. The nature of a particular work of art depends on how much of each of the colors is used and how they are combined on the canvas. In much the same way, the nature of a magnetosphere is determined by the particular properties of a given planet and how those properties influence the dynamical significance of the various processes. We will examine some of the processes in Nature's palette and see how their importance varies from magnetosphere to magnetosphere within our own solar system. Comparing actual realizations of magnetospheres to which we have in-situ access enables us to see the interplay between the physical processes and the peculiar conditions of each body. As we contemplate the extra-solar planets we are now discovering, we need to consider other possible combinations of colors from this palette: What other wonderful and exotic magnetospheres might exist throughout the universe?

  17. Space Earthquake Perturbation Simulation (SEPS) an application based on Geant4 tools to model and simulate the interaction between the Earthquake and the particle trapped on the Van Allen belt

    Science.gov (United States)

    Ambroglini, Filippo; Jerome Burger, William; Battiston, Roberto; Vitale, Vincenzo; Zhang, Yu

    2014-05-01

    During last decades, few space experiments revealed anomalous bursts of charged particles, mainly electrons with energy larger than few MeV. A possible source of these bursts are the low-frequency seismo-electromagnetic emissions, which can cause the precipitation of the electrons from the lower boundary of their inner belt. Studies of these bursts reported also a short-term pre-seismic excess. Starting from simulation tools traditionally used on high energy physics we developed a dedicated application SEPS (Space Perturbation Earthquake Simulation), based on the Geant4 tool and PLANETOCOSMICS program, able to model and simulate the electromagnetic interaction between the earthquake and the particles trapped in the inner Van Allen belt. With SEPS one can study the transport of particles trapped in the Van Allen belts through the Earth's magnetic field also taking into account possible interactions with the Earth's atmosphere. SEPS provides the possibility of: testing different models of interaction between electromagnetic waves and trapped particles, defining the mechanism of interaction as also shaping the area in which this takes place,assessing the effects of perturbations in the magnetic field on the particles path, performing back-tracking analysis and also modelling the interaction with electric fields. SEPS is in advanced development stage, so that it could be already exploited to test in details the results of correlation analysis between particle bursts and earthquakes based on NOAA and SAMPEX data. The test was performed both with a full simulation analysis, (tracing from the position of the earthquake and going to see if there were paths compatible with the burst revealed) and with a back-tracking analysis (tracing from the burst detection point and checking the compatibility with the position of associated earthquake).

  18. Crossed-beam reaction of carbon atoms with hydrocarbon molecules. V. Chemical dynamics of n-C4H3 formation from reaction of C(3Pj) with allene, H2CCCH2(X 1A1)

    Science.gov (United States)

    Kaiser, R. I.; Mebel, A. M.; Chang, A. H. H.; Lin, S. H.; Lee, Y. T.

    1999-06-01

    The crossed molecular beams technique was employed to investigate the reaction between ground state carbon atoms, C(3Pj), and allene, H2CCCH2(X 1A1), at two averaged collision energies of 19.6 and 38.8 kJ mol-1. Product angular distributions and time-of-flight spectra of C4H3 were recorded. Forward-convolution fitting of the data yields weakly polarized center-of-mass angular flux distributions isotropic at lower, but forward scattered with respect to the carbon beam at a higher collision energy. The maximum translational energy release and the angular distributions combined with ab initio and RRKM calculations are consistent with the formation of the n-C4H3 radical in its electronic ground state. The channel to the i-C4H3 isomer contributes less than 1.5%. Reaction dynamics inferred from the experimental data indicate that the carbon atom attacks the π-orbitals of the allenic carbon-carbon double bond barrierless via a loose, reactant-like transition state located at the centrifugal barrier. The initially formed cyclopropylidene derivative rotates in a plane almost perpendicular to the total angular momentum vector around its C-axis and undergoes ring opening to triplet butatriene. At higher collision energy, the butatriene complex decomposes within 0.6 ps via hydrogen emission to form the n-C4H3 isomer and atomic hydrogen through an exit transition state located 9.2 kJ mol-1 above the products. The explicit identification of the n-C4H3 radical under single collision represents a further example of a carbon-hydrogen exchange in reactions of ground state carbon atoms with unsaturated hydrocarbons. This channel opens a barrierless route to synthesize extremely reactive hydrocarbon radicals in combustion processes, interstellar chemistry, and hydrocarbon-rich atmospheres of Jupiter, Saturn, Titan, as well as Triton.

  19. NASA's RBSP-ECT Science Investigation of the Van Allen Probes Mission: Highlights of the Prime Mission Phase, Data Access Overview, and Opportunities to Collaborate in the Extended Mission Phase

    Science.gov (United States)

    Smith, S. S.; Friedel, R. H.; Larsen, B.; Reeves, G.; Spence, H. E.

    2015-12-01

    In this poster, we present a summary of access to the data products of the Radiation Belt Storm Probes - Energetic Particle Composition, and Thermal plasma (RBSP-ECT) suite of NASA's Van Allen Probes mission. The RBSP-ECT science investigation (http://rbsp-ect.sr.unh.edu) measures comprehensively the near-Earth charged particle environment in order to understand the processes that control the acceleration, global distribution, and variability of radiation belt electrons and ions. RBSP-ECT data products derive from the three instrument elements that comprise the suite, which collectively covers the broad energies that define the source and seed populations, the core radiation belts, and also their highest energy ultra-relativistic extensions. These RBSP-ECT instruments include, from lowest to highest energies: the Helium, Oxygen, Proton, and Electron (HOPE) sensor, the Magnetic Electron and Ion Spectrometer (MagEIS), and the Relativistic Electron and Proton Telescope (REPT). We provide a brief overview of their principles of operation, as well as a description of the Level 2-3 data products that the HOPE, MagEIS, and REPT instruments produce, both separately and together. We provide a summary of how to access these RBSP-ECT data products at our Science Operation Center and Science Data Center (http://www.rbsp-ect.lanl.gov/rbsp_ect.php ) as well as caveats for their use. Finally, in the spirit of efficiently and effectively promoting and encouraging new collaborations, we present a summary of past publications, current studies, and opportunities for your future participation in RBSP-ECT extended mission phase science.

  20. Cloning and Expression of Allene Oxide Synthase Gene from Catharanthus roseus%长春花丙二烯氧化物合酶基因的克隆与表达

    Institute of Scientific and Technical Information of China (English)

    王名雪; 陆平; 许菲; 潘琪芳; 唐克轩; 赵静雅

    2012-01-01

    In this study, a full-length cDNA of allene oxide synthase (AOS) gene (named as CrAOS, JQ364955) was cloned from Catharanthus roseus. The gene was 2 118 bp in size containing an open reading frame (1638 bp) encoding 545 amino acids. Comparative and bioinformatic analysis revealed that the deduced protein of CrAOS was highly homologous to AOSs from other plant species. Southern blot analysis revealed that it was a low-copy gene. Real-time Quantitative PCR (qRT-PCR) analysis showed that CrAOS mRNA accumulated most abundantly in old leaves and least in young alabastrums. The qRT-PCR analysis revealed that wound, low temperature, methyl jasmonic acid, ethylene treatments significantly enhanced CrAOS transcript expression,and salicylic acid had no influence.%利用RT-PCR和RACE相结合的方法,从长春花中克隆了丙二烯氧化物合酶(AOS)基因.结果显示:长春花AOS基因(CrAOS) cDNA全长为2 118 bp,包括5 '和3'非翻译区,polyA尾和一个长1 638 bp的开放阅读框,其基因组中不含内含子;CrAOS基因编码的蛋白含545个氨基酸.多重比对表明CrAOS蛋白与其他的AOS蛋白具有较高的相似性,CrAOS蛋白序列中含有AOS家族应有的保守氨基酸残基.Southern杂交表明:CrAOS基因在长春花中为低拷贝.qRT-PCR结果显示:CrAOS在各个组织均有表达但表达量存在差异,在老叶中最高,在幼花中表达最低.对长春花幼苗进行不同处理,结果表明:伤害、低温、甲基茉莉酸、乙烯利处理等可使CrAOS基因表达量显著提高,水杨酸处理对基因表达影响不大.

  1. Obituary: John Allen Eddy (1931-2009)

    Science.gov (United States)

    Gingerich, Owen

    2011-12-01

    Jack Eddy, who was born 25 March 1931 in Pawnee City in southeastern Nebraska, died after a long battle with cancer in Tucson, Arizona, on 10 June 2009. Best known for his work on the long-term instability of the sun, described in a landmark paper in Science titled "The Maunder Minimum," he also deserves recognition as one of the triumvirate who founded the Historical Astronomy Division of the AAS. His father ran a cooperative farm store where Jack worked as a teenager; his parents were of modest means and there were concerns whether he could afford college, but one of the state senators, also from Pawnee City, nominated him for the U.S. Naval Academy. A course in celestial navigation gave him a love of the sky. After graduation in 1953, he served four years on aircraft carriers in the Pacific during the Korean War and then as a navigator and operations officer on a destroyer in the Persian Gulf. In 1957, he left the Navy and entered graduate school at the University of Colorado in Boulder, where in 1962 he received a Ph.D. in astro-geophysics. His thesis, supervised by Gordon Newkirk, dealt with light scattering in the upper atmosphere, based on data from stratospheric balloon flights. He then worked as teacher and researcher at the High Altitude Observatory in Boulder. Always adventuresome and willing to explore new frontiers, on his own time Eddy examined an Amerindian stone circle in the Big Horn mountains of Wyoming, a so-called medicine wheel, concluding that there were alignments with both the solstitial sun and Aldebaran. His conjectures became a cover story on Science magazine in June of 1974. In 1971 Jack privately reproduced for his friends a small collection of his own hilarious cartoons titled "Job Opportunities for Out-of-work Astronomers," with an abstract beginning, "Contrary to popular belief, a PhD in Astronomy/Astrophysics need not be a drawback in locating work in this decade." For example, under merchandising, a used car salesman advertises, "This Mercury is Hot! Red Shift, Black Body, and a Perfect Radiator." Ironically, within a few years he was laid off from his HAO position as a result of budget cuts at its parent organization, the National Center for Atmospheric Research (NCAR). In an interview a quarter of a century later Eddy remarked, "I found out how hard it is for a person with a Ph.D. to get another job at that time, and often wished I didn't have one, for I was often told, true or not, that I was overqualified for the few jobs that turned up." Eddy found a temporary job writing a book for NASA as part of a series on the Skylab spacecraft; the book, The New Sun, was published in 1979. Again, working on his own time, he revived an earlier finding, namely, that between 1645 and 1715 the sun was almost devoid of spots, and he greatly extended the previous work of Gustav Spörer and Walter Maunder by showing during that period a dearth of aurorae and atmospheric carbon-14, a diminution of the solar corona during eclipses, and probably a correlation with cooling of the earth. For onomatopoiec reasons, the rhythm of the m's, Eddy chose the title "the Maunder Minimum" for the phenomenon, and for his unusually long cover story in the 18 June 1976 issue of Science. The paper was well received, and for a while Eddy was an invited speaker fifty times a year. In 1977, Eddy scored yet again, with his third cover story in Science, a jointly authored paper on solar rotation in the early 17th century. In 1977-78 Eddy had a fellowship at the Harvard-Smithsonian Center for Astrophysics in Cambridge, and during that time Ken Brecher and I had a series of conversations with Jack in which we worked out a proposal for a historical astronomy division within the AAS; since I had just been an AAS Councilor, I negotiated with the Society for its actualization, and Eddy became the first HAD president, in 1981-83. He introduced the logo, Dürer's ancient astronomer, and at the end of his term, the plaque with the motto "Ich bin HAD," which has been passed on to every subsequent division president. At the IAU meeting in New Delhi, Eddy became president of the IAU Commission 41 on the history of astronomy (1985-88). While at the CfA Eddy received a tenure offer from the director, George Field. But Eddy's wife, Marjorie Bratt Eddy, and four children had remained behind, and Jack felt obliged to return to Colorado. With the offer from the Smithsonian Observatory and his considerable fame, HAO and NCAR were eager to rehire him. Eddy soon became increasingly interested in interdisciplinary sciences, turning away from his earlier enthusiasm for the history of astronomy. He became the first chairman of a National Academy of Sciences committee for an International Geosphere-Biosphere Program, which later became the U.S. Global Change Program. Early in 1986, UCAR (the University Corporation for Atmospheric research, which managed NCAR) formalized its response to the challenge of global change with a new Office for Interdisciplinary Earth Studies, which Eddy founded and directed. The office focused efforts to bring the atmospheric sciences and other relevant disciplines together to study the earth's living and inanimate elements as a single system. In 1987 Eddy received the Arctowski medal from the National Academy of Science, an honor awarded triennially for studies in solar physics and solar terrestrial relationships. In 1992 Eddy found a new opportunity as chief scientist and vice president of the Center for International Earth Science Information Network, which he described as a federally funded pork barrel project in Michigan. Meanwhile Eddy had divorced; he remarried in 1992 to a fellow worker at UCAR, and he and his new wife, Barbara, relocated to Saginaw, Michigan. After two years he was "extremely frustrated" by the bureaucracy, so he and Barbara struck out on their own, founding the newsletter Consequences (with support from five federal agencies) to explain in popular terms the nature and eventual impacts of environmental changes of all kinds. In 2004 they moved to Tucson, where Eddy worked for NASA at the National Solar Observatory until the time of his death. Author's Note: A principal source of information is the interview with John A. Eddy by Spencer Weart on 21 April 1999, Niels Bohr Library & Archives, American Institute of Physics, College Park, MD USA, www.aip.org/history/ohilist/22910.html. See also the obituary by Peter Foukal in Physics Today, January 2010, pp. 60-61.

  2. Uranium-Carbene-Imido Metalla-Allenes: Ancillary-Ligand-Controlled cis-/trans-Isomerisation and Assessment of trans Influence in the R2 C=U(IV) =NR' Unit (R=Ph2 PNSiMe3 ; R'=CPh3 ).

    Science.gov (United States)

    Lu, Erli; Cooper, Oliver J; Tuna, Floriana; Wooles, Ashley J; Kaltsoyannis, Nikolas; Liddle, Stephen T

    2016-08-01

    Uranium(IV)-carbene-imido complexes [U(BIPM(TMS) )(NCPh3 )(κ(2) -N,N'-BIPY)] (2; BIPM(TMS) =C(PPh2 NSiMe3 )2 ; BIPY=2,2-bipyridine) and [U(BIPM(TMS) )(NCPh3 )(DMAP)2 ] (3; DMAP=4-dimethylamino-pyridine) that contain unprecedented, discrete R2 C=U=NR' units are reported. These complexes complete the family of E=U=E (E=CR2 , NR, O) metalla-allenes with feasible first-row hetero-element combinations. Intriguingly, 2 and 3 contain cis- and trans-C=U=N units, respectively, representing rare examples of controllable cis/trans isomerisation in f-block chemistry. This work reveals a clear-cut example of the trans influence in a mid-valent uranium system, and thus a strong preference for the cis isomer, which is computed in a co-ligand-free truncated model-to isolate the electronic trans influence from steric contributions-to be more stable than the trans isomer by approximately 12 kJ mol(-1) with an isomerisation barrier of approximately 14 kJ mol(-1) . PMID:27405793

  3. DIGITAL FLOOD INSURANCE RATE MAP DATABASE, ALLEN COUNTY, KANSAS, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — FEMA Framework Basemap datasets comprise six of the seven FGDC themes of geospatial data that are used by most GIS applications (Note: the seventh framework theme,...

  4. Basemap Framework Submission for Allen Parish, LA, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — FEMA Framework Basemap datasets comprise six of the seven FGDC themes of geospatial data that are used by most GIS applications (Note: the seventh framework theme,...

  5. Farce: A History from Aristophanes to Woody Allen.

    Science.gov (United States)

    Bermel, Albert

    In a celebration of the expansiveness and inclusiveness of farce, this book describes the art form rather than defines it. Part 1 illustrates the nature of farce and its relationship to tragedy, comedy, and melodrama. Part 2 is a cumulative biography of farce, beginning with Greek and Roman writers and continuing through Shakespeare, Moliere, and…

  6. Lämmastikoksiid : nuhtlus ja ime / Allen Kaasik, Ave Minajeva

    Index Scriptorium Estoniae

    Kaasik, Allen, 1970-

    1998-01-01

    Nobeli füsioloogia- ja meditsiinipreemia said Robert Furchgott, Louis Ignarro ja Ferid Murad nitroglütseriini kui ravimi toimemehhanismi väljaselgitamise eest. Lämmastikoksiidi tähtsus nüüd ja tulevikus

  7. Distsiplineeri end! : elustiili kureerimine Sejima ja Nishizawa loomingus / Matthew Allen

    Index Scriptorium Estoniae

    Allen, Matthew

    2011-01-01

    Kazuyo Sejima ja Ryue Nishizawa (AB SANAA, Jaapan) loomingust. Autor kirjutab, et Sejima ja Nishizawa ühisbüroos SANAA valminud projektid loovad spetsiifilise arhitektuurse subjekti. Arhitektide looming ärgitab asukaid omaenda elustiili estetiseerima ja kureerima, ruum juhib ja distsiplineerib kasutajat

  8. Semiotic Text - discovering perspective accidentally / Daniel Edward Allen

    Index Scriptorium Estoniae

    Allen, Daniel Edward, 1966-

    2014-01-01

    Läti fotolaagrist, kus autor tutvus esmakordsest Eesti esimese fotograafi Johannes Pääsukese sajandivanuste töödega, mis andsid talle inspiratsiooni oma kunstiprojekti läbiviimiseks. Pildistamisest minevikus ja tänapäeval

  9. DIGITAL FLOOD INSURANCE RATE MAP DATABASE, ALLEN COUNTY, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk...

  10. Specific adduction of plant lipid transfer protein by an allene oxide generated by 9-lipoxygenase and allene oxide synthase

    OpenAIRE

    Bakan, Benedicte; Hamberg, Mats; Perrocheau, Ludivine; Maume, Daniel; Rogniaux, Helene; Tranquet, Olivier; Rondeau, Corinne; Blein, J Pierre; Ponchet, Michel; Marion, Didier

    2006-01-01

    Lipid transfer proteins (LTPs) are ubiquitous plant lipid-binding proteins that have been associated with multiple developmental and stress responses. Although LTPs typically bind fatty acids and fatty acid derivatives in a non-covalent way, studies on the LTPs of barley seeds have identified an abundantly occurring covalently modified form, LTP1b, the lipid ligand of which has resisted clarification. In the present study, this adduct was identified as the {alpha}-ketol 9-hydroxy-10-oxo-12(Z)...

  11. The Transformation,Transplantation and Innovation of Our Country's Evidence Law---On Professor Allen's Collected Works andEvidence Lawby Professor Zhang Baosheng%我国证据法学的变革、移植与创新--兼论艾伦教授文集与张保生教授主编之《证据法学》

    Institute of Scientific and Technical Information of China (English)

    邱爱民; 王日春

    2015-01-01

    The law and the science of law change and transplantation are the mainline of reform and modification of laws since Chinese legal system construction and development in the late Qing.Evidence law and the science of evidence law are of no exception.Evidence Law edited by Professor Zhang Baosheng has been pursuing Chinese evidence law theory system and academic reform and innovation.In the process,he innovated the academic thoughts of Ronald J Allen,Professor of Law School,Northwestern University of America.In the positioning of evidence law,attribution of evidence,exclusion-ary rule of evidence,the burden of proof and standard of proof and so on,it reflects the relationship of cooperative trans-formation and the development of transplantation.Especially through plenty of transplantation and improvement the self-innovation has been realized.%法律以及法学的变革与移植,是清末变法修律以来,中国法制建设与发展的主线。证据法与证据法学亦不例外。张保生教授主持编写之教材《证据法学》,一直追求对中国证据法学理论体系与学术主张的变革与创新。在此过程中,他对美国西北大学法学院威格莫尔特座教授罗纳德·J·艾伦的学术思想在引进和移植的基础上进行创新。中美证据法学在证据法的定位、证据属性、排除规则、证明责任和证明标准等方面,都体现出变革与移植的协同发展,特别是通过大量移植实现了中国证据法学的自我创新与完善。

  12. A Universal Martial Tactic: The Shoulder Throw & Its Variations, by Allen Pittman

    Directory of Open Access Journals (Sweden)

    Allen Pittman

    2012-07-01

    Full Text Available Development of the fighting arts begins with universal principles found in human anatomy. As a result, in every culture we find combative techniques that share common tactics and applications. Additionally, many techniques travel across cultures. To illustrate just one martial tactic and its worldwide presence among martial traditions, this article presents variations on the shoulder throw as found in Persia, Greece, Japan, China, England, and France. Two main methods are found in the shoulder throw where the defender moves either inside or outside the attacker’s leading arm. The technical variations seem endless, as the defender can not only throw an opponent, but also employ joint locks, breaks, and even weapons in the techniques. An academic understanding, and/or the practical learning, of trans-cultural techniques, brings greater understanding of martial arts in general and a practical component to those who learn the skills for practical application.

  13. Transosseous Medial Meniscal Root Repair Using a Modified Mason-Allen Suture Configuration.

    Science.gov (United States)

    Lavender, Chad D; Hanzlik, Shane R; Caldwell, Paul E; Pearson, Sara E

    2015-12-01

    Medial meniscal tears are among the most common injuries to the knee joint. Loss of the meniscus has been linked to increased contact pressures on the adjacent articular cartilage and progression of degenerative changes in the knee. A subset of tears known as "root tears" involves the insertion of the posterior horn of the meniscus to the bone. Arthroscopic partial meniscectomy for root tears led to undesirable outcomes, which prompted surgeons to explore restorative procedures. Multiple repair techniques have been presented with an emphasis placed on initial secure fixation and stimulation of potential healing. We present an arthroscopic-assisted technique for medial meniscal root repair with these goals in mind. PMID:27284511

  14. Wave-induced loss of ultra-relativistic electrons in the Van Allen radiation belts

    Science.gov (United States)

    Shprits, Yuri Y.; Drozdov, Alexander Y.; Spasojevic, Maria; Kellerman, Adam C.; Usanova, Maria E.; Engebretson, Mark J.; Agapitov, Oleksiy V.; Zhelavskaya, Irina S.; Raita, Tero J.; Spence, Harlan E.; Baker, Daniel N.; Zhu, Hui; Aseev, Nikita A.

    2016-01-01

    The dipole configuration of the Earth's magnetic field allows for the trapping of highly energetic particles, which form the radiation belts. Although significant advances have been made in understanding the acceleration mechanisms in the radiation belts, the loss processes remain poorly understood. Unique observations on 17 January 2013 provide detailed information throughout the belts on the energy spectrum and pitch angle (angle between the velocity of a particle and the magnetic field) distribution of electrons up to ultra-relativistic energies. Here we show that although relativistic electrons are enhanced, ultra-relativistic electrons become depleted and distributions of particles show very clear telltale signatures of electromagnetic ion cyclotron wave-induced loss. Comparisons between observations and modelling of the evolution of the electron flux and pitch angle show that electromagnetic ion cyclotron waves provide the dominant loss mechanism at ultra-relativistic energies and produce a profound dropout of the ultra-relativistic radiation belt fluxes. PMID:27678050

  15. Economic Efficiency, Allen / Uzama and Morishima Elasticities of Smallholder Agriculture In Dedza District, Malawi

    Directory of Open Access Journals (Sweden)

    Assa MAGANGA

    2013-06-01

    Full Text Available This paper is an attempt to measure the economic efficiency of Dedza smallholder Irish potato (Solanum tuberosum farmers in Malawi using a translog cost frontier, inefficiency effect model and input Elasticities from Seeming Unrelated Regression Model for asystem of cost share equations for labour, fertilizer, seed and land. A sample of 200 farmers has been considered from Dedza district in Malawi. Results indicate that the mean economic efficiency of Irish potato production in Dedza District is 0.61 with scores ranging between 0.12 and 0.94. The economic efficiency differences are significantly explained by non-farm employment, education, credit access, farm experience, degree of specialization, household size and frequency of weeding. The highest input substitution existed between labour and fertilizer, followed by seedfertilizer.

  16. Ein konservatives MPV-Verfahren zur Simulation der Strömungen in allen Machzahlbereichen

    OpenAIRE

    Park, Jea-Ho

    2003-01-01

    Zur Simulation sowohl inkompressibler als auch kompressibler Strömungen wird ein neues numerisches Verfahren eingeführt. Dabei wird zunächst die konservative Form der Navier-Stokes-Gleichungen aufgestellt, da sie das numerische Erhaltungsprinzip für Strömungen höherer Machzahl gewährleistet. Auf den Druck wird noch der sogenannte MPV-Ansatz angewandt. Dies ist eine Art Druckzerlegungsmethode. Damit kann die beim inkompressiblen Grenzfall auftretende Singularität beseitigt werden. Eigentlich b...

  17. Heterocyclization of allenes catalyzed by late transition metals: Mechanisms and regioselectivity

    OpenAIRE

    Alcaide, Benito; Almendros, Pedro; Del Campo, T.M.; Soriano, Elena; Marco-Contelles, José L.

    2011-01-01

    Regiocontrolled metal-catalyzed preparations of enantiopure tetrahydrofurans, dihydropyrans, and tetrahydrooxepines have been developed starting from γ-allenols derived from 4-oxoazetidine-2-carbaldehydes and D-glyceraldehyde. Regioselectivity control in the O-C functionalization of γ-allenols can be achieved through the choice of catalyst, protecting group, or tether. Because of the increasing power and availability of computers, and the simultaneous development of well-tested and reliable t...

  18. The Allen Telescope Array Fly's Eye Survey for Fast Radio Transients

    OpenAIRE

    Siemion, Andrew P. V.; Bower, Geoffrey C.; Foster, Griffin; McMahon, Peter L.; Wagner, Mark I.; Werthimer, Dan; Backer, Don; Cordes, Jim; van Leeuwen, Joeri

    2011-01-01

    The relatively unexplored fast radio transient parameter space is known to be home to a variety of interesting sources, including pulsars, pulsar giant pulses and non-thermal emission from planetary magnetospheres. In addition, a variety of hypothesized but as-yet-unobserved phenomena, such as primordial black hole evaporation and prompt emission associated with coalescing massive objects have been suggested. The 2007 announcement by Lorimer et al. of the detection of a bright (30 Jy) radio p...

  19. At CES Paul Allen beaming about Hawks, wishing Bill Gates well

    CERN Multimedia

    2008-01-01

    when word came out that he and Bill Gates were supporting a spectacular new telescope with $30 million in donations. E-mail was apparently a little spotty on the yacht, but he responded last night to a few questions about the LSST project:

  20. Woody Allen - Henrik Ibsen. Hedda and her sisters - on women and space

    Directory of Open Access Journals (Sweden)

    Astrid Sæther

    2015-02-01

    Full Text Available The purpose of this article is to relate Henrik Ibsen’s Hedda Gabler to Woody Allen’s Interiors with respect to their inquiry into women’s relation to power and art. Both artists are close watchers and profound analysts of women’s positions in times of transition, and both relate their themes to class and gender. The subordination of women is apparent in the use of cinematic and theatrical space. In order to compare the screenplay and the drama text I have studied how the artists allow women to use space, building on C. Hermann’s theory (1976 about spatial systematization and hierarchization.

  1. Management Review of the Library of Congress: The 1996 Booz Allen and Hamilton Report.

    Science.gov (United States)

    Cope, R. L.

    1997-01-01

    Analyzes the methodology and findings of the "Management Review of the Library of Congress" completed in 1996. Highlights include mission statements; organizational structure; lack of strategic planning; performance measurement for support staff; the need for distributed leadership roles; the future of the Library of Congress; and implications for…

  2. Overexpression of allene oxide cyclase improves the biosynthesis of artemisinin in Artemisia annua L.

    Directory of Open Access Journals (Sweden)

    Xu Lu

    Full Text Available Jasmonates (JAs are important signaling molecules in plants and play crucial roles in stress responses, secondary metabolites' regulation, plant growth and development. In this study, the promoter of AaAOC, which was the key gene of jasmonate biosynthetic pathway, had been cloned. GUS staining showed that AaAOC was expressed ubiquitiously in A. annua. AaAOC gene was overexpressed under control of 35S promoter. RT-Q-PCR showed that the expression levels of AaAOC were increased from 1.6- to 5.2-fold in AaAOC-overexpression transgenic A. annua. The results of GC-MS showed that the content of endogenous jasmonic acid (JA was 2- to 4.7-fold of the control level in AaAOC-overexpression plants. HPLC showed that the contents of artemisinin, dihydroartemisinic acid and artemisinic acid were increased significantly in AaAOC-overexpression plants. RT-Q-PCR showed that the expression levels of FPS (farnesyl diphosphate synthase, CYP71AV1 (cytochrome P450 dependent hydroxylase and DBR2 (double bond reductase 2 were increased significantly in AaAOC-overexpression plants. All data demonstrated that increased endogenous JA could significantly promote the biosynthesis of artemisinin in AaAOC-overexpression transgenic A. annua.

  3. Assessment of Fishery Resources available in Lake Allen Patuxent Research National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — The purpose of the survey was to provide baseline fishery data in support of the Refuge's public use goals and establish a basis upon which management could plan...

  4. Otolith growth of Springer's demoiselle, Chrysiptera springeri (Pomacentridae, Allen & Lubbock), on a protected and non-protected coral reef

    DEFF Research Database (Denmark)

    Retzel, A.; Hansen, A.D.; Grønkjær, P.

    2007-01-01

    The structural complexity of coral reefs is important for their function as shelter and feeding habitats for coral reef fishes, but physical disturbance by human activities often reduce complexity of the reefs by selectively destroying fragile and more complex coral species. The damselfish Springer......'s demoiselle Chrysiptera springeri primarily utilize complex coral heads for shelter and are hence vulnerable to human disturbance. In order to evaluate the potential effect of habitat degradation on juvenile fish growth, coral reef cover, fish age at settling and otolith growth, juvenile Springer's demoiselle...... was investigated on a protected and non-protected coral reef in Darvel Bay, Borneo. The protected reef had higher coverage of complex branching corals and exhibited a more complex 3-dimensional structure than the non-protected reef. Springer's demoiselle settled at the same age on non-protected and protected reefs...

  5. Book Review: Intentional Changes: A Fresh Approach to Helping People Change, by Allen Tough, Chicago: Follette Publishing Co., 1982.

    OpenAIRE

    JS Armstrong

    2005-01-01

    Intentional Changes is an important book. It suggests different approaches to the way in which we try to implement change. It provides, as do most important books, much that you will disagree with. Tough’s conclusions are based on studies that are likely to be unknown to you. The book is interesting, well written, and short.

  6. The Influence of Allen Poe on Baudelaire%爱伦·坡对波德莱尔的影响

    Institute of Scientific and Technical Information of China (English)

    张丽群

    2009-01-01

    本文从美国作家爱伦·坡的诗歌自主,反对现实主义反映论的诗学观,以及他以"忧郁"、"死亡与美的结合"的美学原则和他小说中对想象力的强调与实践等方面来看他在波德莱尔的创作过程中的被接受和影响.

  7. Effect of Grapevine Fanleaf Virus on the Reproduction and Survival of its Nematode Vector, Xiphinema index Thorne &Allen.

    Science.gov (United States)

    Das, S; Raski, D J

    1969-04-01

    Studies on the virus-vector interaction between the grapevine fanleaf virus (GFV) and its nematode vector, Xiphinema index, indicate the virus had no measurable effect on the rate of reproduction of its vector, but significantly influenced survNal of the nematodes.

  8. Meediavabadus ja selle kaitse : [bakalaureusetöö] / Allen-Illimar Putnik ; Tartu Ülikool, õigusteaduskond ; juhendaja: Uno Lõhmus

    Index Scriptorium Estoniae

    Putnik, Allen-Illimar

    2001-01-01

    Meediavabaduse üldpõhimõtted - litsentseerimine, meediaettevõtete omandiga seotud õigussuhted, meedia sisuga seotud õigussuhted, ülevaade EL meediavabadust puudutavast õigusest; meediavabadus Eesti õiguses

  9. Orders on Intervals Over Partially Ordered Sets: Extending Allen's Algebra and Interval Graph Results

    Energy Technology Data Exchange (ETDEWEB)

    Zapata, Francisco; Kreinovich, Vladik; Joslyn, Cliff A.; Hogan, Emilie A.

    2013-08-01

    To make a decision, we need to compare the values of quantities. In many practical situations, we know the values with interval uncertainty. In such situations, we need to compare intervals. Allen’s algebra describes all possible relations between intervals on the real line, and ordering relations between such intervals are well studied. In this paper, we extend this description to intervals in an arbitrary partially ordered set (poset). In particular, we explicitly describe ordering relations between intervals that generalize relation between points. As auxiliary results, we provide a logical interpretation of the relation between intervals, and extend the results about interval graphs to intervals over posets.

  10. I Met Lucky People: The Story of the Romani Gypsies. By Yaron Matras. London: Allen Lane, Penguin Books, 2014, 276 pp.; ISBN 978-1-846-14481-3.

    Directory of Open Access Journals (Sweden)

    Victor A Friedman

    2015-09-01

    Full Text Available This is a book review of I met lucky people: The story of the Romani Gypsies, by Yaron Matras. The work is oriented for a general reading public, but it can be highly recommended for academics and policy makers as well.

  11. Pathology and epizootiology of Dirofilaria scapiceps (Leidy, 1886) (Nematoda: Filarioidea) in Sylvilagus floridanus (J.A. Allen) and Lepus americanus erxleben.

    Science.gov (United States)

    Bartlett, C M

    1984-07-01

    Dirofilaria scapiceps was found between the synovial sheath and tendons, i.e., within the tendon sheath, in the ankle region of eastern cottontail rabbits (Sylvilagus floridanus) and snowshoe hares (Lepus americanus). In cottontail rabbits, tendons and sheaths appeared normal and all worms were adults. Only one (4%) of 24 infected rabbits contained dead worms. All female worms were gravid in rabbits killed in late winter or early spring. Microfilaremias in rabbits were high (approximately 30-100 microfilariae/60 microliter blood) and of long duration (at least 8-28 mo), and rabbits were considered normal hosts of D. scapiceps. In some snowshoe hares, tendons and sheaths also appeared normal; however, in other hares a chronic proliferative tenosynovitis, characterized by fibrinous exudate, hyperplasia and hypertrophy of the intima and inflammatory cell (predominantly lymphocytes and plasma cells) infiltration of the intimal and fibrous layers of the synovial sheath led to encapsulation of worms. Dead subadult, dead adult, and live adult worms were found in the ankles of hares; 86 (46%) of 186 infected hares contained some or only dead worms. Fibrosis commonly occurred around dead worms. Dead subadults were also found in subcutaneous connective tissues over the trunk of the body. Degenerate embryos and amorphous material were observed in uteri of some female worms in hares killed in late winter or early spring. Few (1-5 microfilariae/60 microliter blood) or no microfilariae were observed in the peripheral blood of hares and microfilaremias were of short duration (less than 8 mo). Microfilariae in hares are probably trapped and destroyed in the chronic inflammatory lesions in the tendon sheaths since normal, degenerate, and calcified microfilariae were observed in the capsules around adult worms. Some microfilariae might also be destroyed in lymph nodes. Although D. scapiceps can be maintained within snowshoe hare populations, hares are considered abnormal hosts of D. scapiceps. Dirofilaria scapiceps may have spread from cottontail rabbits to snowshoe hares relatively recently. PMID:6492321

  12. CuCl-catalyzed aerobic oxidation of 2,3-allenols to 1,2-allenic ketones with 1:1 combination of phenanthroline and bipyridine as ligands

    Directory of Open Access Journals (Sweden)

    Shengming Ma

    2011-04-01

    Full Text Available A protocol has been developed to prepare 1,2-allenyl ketones using molecular oxygen in air or pure oxygen as the oxidant from 2,3-allenylic alcohols with moderate to good yields under mild conditions. In this reaction CuCl (20 mol % with 1,10-phenanthroline (10 mol % and bipyridine (10 mol % was used as the catalyst. It is interesting to observe that the use of the mixed ligands is important for the higher yields of this transformation: With the monoligand approach developed by Markó et al., the yields are relatively lower.

  13. Musik och Film : Ett möte mellan två konstformer i Stanley Kubricks ”2001 – a Space Odyssey” och Woody Allens ”Manhattan”

    OpenAIRE

    Werner Kjellberg, Petra

    2007-01-01

    Filmmusic is often composed specially for a film. When analyzing film-music it seems very common to study the function of the music in a narrative context in order to see how it cooperates or relates to this narration. In the present thesis I am investigating the interaction between film and music as two ingredients on an equal level. In short: what happens when a filmmaker chooses music that has already been composed for another occasion, even in another time and a different cultural context...

  14. Dutt-Doner, K.M., Cook-Cottone, C., Allen, S. . Improving classroom instruction : understanding the developmental nature of analyzing primary sources

    NARCIS (Netherlands)

    Donker, Daan

    2011-01-01

    Er is maar een beperkt aantal empirische onderzoeken bekend over hoe primaire bronnen het best gebruikt kunnen worden in de les. Het doel van dit evidence based onderzoek is om te kijken welke vaardigheden leerlingen kunnen helpen bij het analyseren van primaire bronnen, welke invloed achtergrondken

  15. Facial Synthesis of o-Carborane-Substituted Alkenes and Allenes by a Regioselective Ene Reaction of 1,3-Dehydro-o-carborane.

    Science.gov (United States)

    Zhao, Da; Zhang, Jiji; Xie, Zuowei

    2015-07-13

    1,3-Dehydro-o-carborane is a useful synthon for selective cage boron functionalization of o-carboranes. It reacts readily with alkenes or alkynes to give a variety of cage B(3)-alkenyl/allenyl o-carboranes by ene reactions in very high yields and excellent regioselectivity. This can be ascribed to the highly polarized cage C-B multiple bond, which lowers the activation barriers of the ene reaction. PMID:26074122

  16. Commemorative essay on the 1958 experimental nuclear detonation between the earth's Van allen-Vernow belts and the environmental holonomy of circumterrestrial space

    International Nuclear Information System (INIS)

    Here I write of circumterrestrial space (CTS) and the commemoration of the little known fact that 27 August 2004 coincides with the 46th anniversary of the detonation by the United States, mainly for specific purposes, of a small nuclear device in the lower ionosphere, 480 km above the surface of the earth near the equatorial northern hemisphere, over the Azores. We also discuss the anthropogenic threats to the holonomy of all components of the outer circumterrestrial spheres and the efforts that must be encouraged to preserve, for future generations, the earth's CTS, as a global commons. (Author)

  17. Watershed Boundaries, Watershed areas include Rough Creek, Jonathan Creek, Campbell Creek, Allens Creek and Pigeon River, Published in 1993, 1:4800 (1in=400ft) scale, Haywood County Land Records/Geographic Information Systems.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Watershed Boundaries dataset, published at 1:4800 (1in=400ft) scale, was produced all or in part from Hardcopy Maps information as of 1993. It is described as...

  18. 波德莱尔应和论与霍夫曼——兼及爱伦·坡%Baudelaire's Theory of Correspondence and Hoffmann——Also on Allen Poe

    Institute of Scientific and Technical Information of China (English)

    李珺平

    2007-01-01

    文章重点探讨波德莱尔应和论与霍夫曼的关系.认为,如果英国批评家查德威克"两个对应面"之说有道理而且可以被分离,波德莱尔应和论的"水平对应面"就受过霍夫曼的启发.由此延伸,解剖了霍夫曼的创作特点及通感说在其作品中的表现,也考察了波德莱尔接受霍夫曼通感说以及其他相关理论的时间和过程,并提到霍夫曼对爱伦·坡的影响兼及对波德莱尔的作用,还探讨了通感说的哲学和艺术心理学渊源.

  19. The Proper Status and Functions of Librarians in Academic Institutions. (An Update on the Original Article by Geoff Allen, "The Proper Status and Functions of Librarians in Academic Institutions". "The Australian Library Journal" 33 No. 4: 5-12, 1984.)

    Science.gov (United States)

    Allen, Geoffrey

    2011-01-01

    The invitation to write an updating commentary on my 1984 paper came as a considerable surprise. As I have been retired for nineteen years during which time I have consciously distanced myself from my profession, partly in the interests of my successors who have had no need for intrusions by an echo of the past, and partly because I have been able…

  20. Ilmafilosoofia ilma filosoofiata / Jüri Rato

    Index Scriptorium Estoniae

    Rato, Jüri

    2000-01-01

    Arvustus: Hoff, Benjamin. Puhh ja Tao / tlk. Mait Talts. Tln. : Olympia, 1998 ; Hoff, Benjamin. Notsu ja Te / tlk. Paavo Kivine. Tln.: Olympia, 1999 ; Allen, Roger E. ; Allen, Stephen D. Puhh lahendab probleeme / tlk. Paavo Kivine. Tallinn : Olympia, 2000

  1. Comparison of transosseous suture and suture anchors in the fixation of rotator cuff tears: a biomechanical experimental study

    OpenAIRE

    Atalar, Ata Can; Demirhan, Mehmet; Bozdag, Ergun; Akalin, Yilmaz; Arpaci, Alaeddin

    2004-01-01

    Objectives: This study was designed to compare the primary fixation strength of transosseous sutures and suture anchors in rotator cuff repair. Methods: Thirty-two sheep shoulders were divided into four homogeneously equal groups. In each group, infraspinatus tendons were cut from their insertions and reattached with four diverse techniques, which included a single Mason-Allen stitch (group 1), double Mason-Allen stitches (group 2), double Mason-Allen stitches knotted on the lateral cortex...

  2. 76 FR 66323 - National Register of Historic Places; Notification of Pending Nominations and Related Actions

    Science.gov (United States)

    2011-10-26

    ...., Fagatogo, 11000789 GEORGIA Crawford County Hawkins, Col. Benjamin, Gravesite, Benjamin Hawkins Rd., Roberta... WALTER B. ALLEN (canaller) Shipwreck, (Great Lakes Shipwreck Sites of Wisconsin MPS) 7 mi. NE....

  3. International Perspectives.

    Science.gov (United States)

    Allen, Kenn; Habermann, Ulla; Chowdhury, Omar Faruque; Guerra, Iraida Manzanilla

    1998-01-01

    Includes "Introduction to International Perspectives" (Allen); "Volunteerism in the Welfare State: The Case of Denmark" (Habermann); "Grassroots Organizing in Bangladesh" (Chowdhury); and "Volunteerism in Latin America" (Guerra). (SK)

  4. 设计灵感源自客户的声音——访伟迪捷(上海)喷码机有限公司亚太市场副总裁David T·Allen%InBev buys AB at $52b

    Institute of Scientific and Technical Information of China (English)

    牛牧

    2008-01-01

    @@ 目前,越来越多的生产企业关注OEE,即企业设备的综合效率,一项用于全面生产维护的标准以评估设备或生产线的效率.OEE的提升不仅可以提高企业的设备使用率,更可以提高企业的产能和利润.作为很多生产企业不可缺少的喷码环节更显得尤为重要.

  5. COMPARATIVE STUDY Between Edgar Allen Poe and Charles Baudelaire%离经叛道独树一帜 --埃德加·爱伦·坡与查尔斯·波德莱尔生活与美学观比较

    Institute of Scientific and Technical Information of China (English)

    何木英

    2002-01-01

    埃德加·爱伦·坡与查尔斯·波德莱尔是19世纪美国和法国非常有影响的文学家,两位伟人的人生境遇和美学观如此相同,彼此的影响如此之大,在世界文学史上实属罕见.

  6. Sustainability Development Creates Ground for Growth Interview with Mr.Allen Chan, Chairman & CEO of Sino-Forest Corporation%缔造可持续发展的永恒——嘉汉林业董事长陈德源访谈

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    “当我盯着褐色的淤泥堵塞的河水,跟随在后的是不断的碎石渣滓,我体验到一阵眩晕的疼痛。它不是清楚的出现在我四肢的哪一肢上,但它却是真实的存在。我并不想在这样的河水中游泳,也不需要喝这里的水,但不知道怎么的,我还是感觉受到了伤害。那一瞬间,我自然的感觉到,那河是我的一部分。”

  7. Experiences in Nature: Resolute Second-Plane Directions toward Erdkinder

    Science.gov (United States)

    Leonard, Gerard; Allen, Kathleen

    2013-01-01

    Gerard Leonard and Kathleen Allen describe a variety of nature experiences as a part of the Montessori elementary tradition, beginning with a warning about the way contemporary life constrains children's experience of nature. Through a lyrical rendering of the nature-based expressions of children, Leonard and Allen look at a variety of approaches…

  8. Revisiting Marshall's Third Law: Why Does Labor's Share Interact with the Elasticity of Substitution to Decrease the Elasticity of Labor Demand?

    Science.gov (United States)

    Hoffman, Saul D.

    2009-01-01

    The third Marshall-Hicks-Allen rule of elasticity of derived demand purports to show that labor demand is less elastic when labor is a smaller share of total costs. As Hicks, Allen, and then Bronfenbrenner showed, this rule is not quite correct, and actually is complicated by an unexpected negative relationship involving labor's share of total…

  9. 31 CFR 357.21 - Registration.

    Science.gov (United States)

    2010-07-01

    ...: John S. Green, payable on death to U.S. Treasury to reduce the public debt (31 U.S.C. 3113). (Approved... appears in the designated account master record. One who holds a security as John Allen Doe should use that name when depositing another security rather than J. Allen Doe, or John A. Doe'. Minor...

  10. Muriel Wright: Telling the Story of Oklahoma Indian Nations

    Science.gov (United States)

    Cesar, Dana; Smith, Joan K.; Noley, Grayson

    2004-01-01

    The Wright family, descended from the patriarch Allen Wright, who arrived in the new Choctaw Nation after surviving the "Trail of Tears," played an important role in Oklahoma politics and society. Following removal to Oklahoma, Allen went on to become Principal Chief of the Choctaw Nation and gave the name, Oklahoma, to the southwest territory. He…

  11. Comment on “Temperature dependence of atomic vibrations in mono-layer graphene” [J. Appl. Phys. 118, 074302 (2015)

    Energy Technology Data Exchange (ETDEWEB)

    Susi, T., E-mail: toma.susi@univie.ac.at; Kotakoski, J. [Faculty of Physics, University of Vienna, Boltzmanngasse 5, 1090 Vienna (Austria)

    2016-02-14

    In an interesting recent study [Allen et al., J. Appl. Phys. 118, 074302 (2015)] (see also their Erratum [Allen et al., J. Appl. Phys. 118, 159902 (2015)]), Allen and co-workers measured the mean square amplitudes of graphene lattice vibrations between 100 and 1300 K and used a simplified theoretical approximation for the acoustic phonon modes to evaluate the maximum phonon wavelengths supported by the lattice. By fitting their data using the smallest wave-vector as the fitting parameter, they found this to be significantly smaller than the physical size of the graphene crystallites.

  12. 76 FR 22912 - Notice of Revocation of Customs Broker License

    Science.gov (United States)

    2011-04-25

    ... Act of 1930, as amended, (19 U.S.C. 1641) and the U.S. Customs and Border Protection regulations (19... prejudice. License Issuing port I.F.T.C., Inc 11373 Miami ] Dated: April 14, 2011. Allen Gina,...

  13. 75 FR 80803 - National Advisory Committee on Institutional Quality and Integrity: Notice of Members

    Science.gov (United States)

    2010-12-23

    ..., President and Chief Executive Officer (CEO), Public Advocates, Inc., California. Mr. Frank Wu, Chancellor..., Vice Chancellor of Economic and Workforce Development, Alamo Community College District, Texas. Members...: Dr. Benjamin Allen, President, University of Northern Iowa, Iowa. Dr. Arthur Keiser,...

  14. Talking to Your Doctor

    Medline Plus

    Full Text Available ... NIH Clinical Research Trials and You Community Resources Publications List Science Education Resources Talking to Your Doctor ... Español More Information For more information about this publication, contact Dr. Marin Allen . This page last reviewed ...

  15. Rome

    Directory of Open Access Journals (Sweden)

    Jan Nelis

    2010-01-01

    Full Text Available Apted, Michael; Farino, Julia; Coulter, Allen et al. (dirs.; HBO/BBC (prod.; Heller, Bruno; Milius, John; Frankel, David; Macdonald, William J.; Cunningham, Alexandra and Hodges, Adrian (script. United Kingdom, 2005: son., col.

  16. Pop / Tauno Maarpuu

    Index Scriptorium Estoniae

    Maarpuu, Tauno

    2006-01-01

    Heliplaatidest: The Fiery Furnaces "Bitter Tea", Ian Gillan "Gillan's Inn", Feeder "The Singels", Phoenix "It's Never Been Like That", Elvis Costello & Allen Toussaint "The River in Reverse", Erinevad esitajad "The New Gold Standard", Erinevad esitajad "R2 Live Vol. 1"

  17. Eestlaste loodud tehisintellekt lahendas ameeriklaste tasemetöö

    Index Scriptorium Estoniae

    2016-01-01

    Tartu ülikooli meeskond koosseisus informaatikadoktorant Tambet Matiisen ja arvutiteduse instituudi töötaja Tanel Pärnamaa, saavutas tehisintellekti võistlusel Allen AI Science Challenge neljanda koha

  18. Paratext, serialisation and authorship in Victorian England

    NARCIS (Netherlands)

    R.G. Allen

    2012-01-01

    Robert Allen deed onderzoek naar de materiële eigenschappen en paratekstuele elementen in de representatie van auteurschap. Hij analyseert hiertoe Victoriaanse paratekstuele elementen - zoals pseudoniemen, titels, titelplaten, illustraties, auteursportretten, voor- en nawoorden, en andere teksten ge

  19. Der Code der Transparenz

    OpenAIRE

    Alloa, Emmanuel

    2015-01-01

    In allen Bereichen der Gesellschaft werden gegenwärtig Forderungen nach mehr Transparenz laut. Was steht hinter diesem Wort? Für Emmanuel Alloa wohnt der Transparenzforderung die Paradoxie inne, ein "codefreier Code" sein zu wollen.

  20. DVD / Andres Laasik

    Index Scriptorium Estoniae

    Laasik, Andres, 1960-2016

    2007-01-01

    Kolme USA mängufilmi DVD-de lühitutvustused : Spike Lee "Keegi seestpoolt" ("Inside Man"), Jonathan Liebesmani "Texase mootorsaemõrvad: Algus" ("The Texas Chainsaw Massacre : The Beginning"), Allen Coulteri "Hollywoodland"

  1. Can't Curb the Urge to Move? Living with Restless Legs Syndrome

    Science.gov (United States)

    ... active is usually a good thing. But the motivation to move goes to unwelcome extremes for people ... good response to dopamine medicine,” says Allen. Imaging studies show that people with restless legs syndrome have ...

  2. Capitalism in the Classroom.

    Science.gov (United States)

    Brown, Robert Edward

    1979-01-01

    Discussed is the new conservatism that is reflected in American economic circles today. Economists and organizations that are responsible for this new vitality in procapitalist economics are highlighted, including Arthur Laffer, Milton Friedman, William Allen, and Frederich Hayek. (JMD)

  3. 76 FR 64359 - Center for Scientific Review; Notice of Closed Meetings

    Science.gov (United States)

    2011-10-18

    .... to 5 p.m. Agenda: To review and evaluate grant applications. Place: The St. Gregory Hotel, 2003 M.... Westin Grand, 2350 M Street, NW., Washington, DC 20037. Contact Person: Allen Richon, PhD,...

  4. Tartusse tuleb Wilde'i ja Vilde monument

    Index Scriptorium Estoniae

    1998-01-01

    Tartu kesklinnas Wilde Irish Pubi ees peaks 1999. a. kevadel avatama kirjanike Oscar Wilde'i ja Eduard Vilde pronkskujud. Elusuuruses kirjanikud hakkavad istuma graniitistmel. Idee autorid - pubipidaja Liam Allen, ettevõtja Marju Unt, skulptor Tiiu Kirsipuu.

  5. Divergent reactivity of homologue ortho-allenylbenzaldehydes controlled by the tether length: chromone versus chromene formation.

    Science.gov (United States)

    Alcaide, Benito; Almendros, Pedro; Fernández, Israel; Martínez del Campo, Teresa; Naranjo, Teresa

    2015-01-19

    The divergent behavior of two homologue allenals, namely, 2-(buta-2,3-dienyloxy)- and 2-(propa-1,2-dienyloxy)benzaldehydes, as cyclization substrates is described. 2-(Buta-2,3-dienyloxy)benzaldehydes suffers a formal allenic carbocyclization reaction to afford chromenes, whereas 2-(propa-1,2-dienyloxy)benzaldehydes react to yield chromones. The formation of chromenes is strictly a formal hydroarylation process divided into two parts, namely, allenic Claisen-type rearrangement and oxycyclization. An unknown N-heterocyclic carbene (NHC)-catalyzed allenic hydroacylation reaction must be invoked to account for the preparation of chromones. ortho-Allenylbenzaldehydes bearing either electron-donating substituents or electron-withdrawing substituents worked well to afford both the hydroarylation and hydroacylation products. This unexpected difference in reactivity can be rationalized by means of density functional theory calculations. PMID:25418081

  6. Assembly-driven metagenomics of a hypersaline microbial ecosystem (2013 DOE JGI Genomics of Energy and Environment 8th Annual User Meeting)

    Energy Technology Data Exchange (ETDEWEB)

    Allen, Eric [Scripps and UCSD

    2013-03-01

    Eric Allen of Scripps and UC San Diego on "Assembly-driven metagenomics of a hypersaline microbial ecosystem" at the 8th Annual Genomics of Energy & Environment Meeting on March 27, 2013 in Walnut Creek, Calif.

  7. Assessement of nonindigenous marine species in harbors and nearby coral reefs on Kauai, Molokai, Maui, and Hawaii, 2002-2003 (NODC Accession 0002270)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Collections and observations in 2002-2003 at harbor and nearby reef sites at Nawilwili and Port Allen, Kauai; Hale O Lono and Kaunakakai, Molokai; Kahului and...

  8. Assessment of nonindigenous marine species in harbors and nearby coral reefs on Kauai, Molokai, Maui, and Hawaii, 2002 - 2003 (NODC Accession 0002270)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Collections and observations in 2002-2003 at harbor and nearby reef sites at Nawilwili and Port Allen, Kauai; Hale O Lono and Kaunakakai, Molokai; Kahului and...

  9. Fin de siecle, Beat Generation / Rando Tooming

    Index Scriptorium Estoniae

    Tooming, Rando

    2002-01-01

    Dokumentaalfilm kolmest biitnikute ideoloogist-kirjanikust Jack Kerouac'ist, William S. Burroughs'st ja Allen Ginsburgist "Hipid ja biitnikud" ("The Source") : režissöör Chuck Workman : Ameerika Ühendriigid 1998

  10. 77 FR 49440 - Membership of the Performance Review Board

    Science.gov (United States)

    2012-08-16

    ... Desimone Shari Durand Audrey Eckhart Webster Ewell John Hastings Paul Hulley John James, Jr. Clarence... Mcgrath Teresa Mckay Donald Mckenzie Allen Middleton Robert Newberry Patrick O'brien Thomas Peters...

  11. Frauen- und Geschlechterforschung : Standortbestimmung und Perspektive - Dokumentation der Frauenstudienwoche an der Carl von Ossietzky Universität Oldenburg vom 17. - 21. Juni 1996

    OpenAIRE

    Modelmog, Ilse Hrsg.; Fleßner, Heike-Marie Hrsg.; Flaake, Karin Hrsg.

    1999-01-01

    Die Dokumentation gibt einen Überblick über die Frauenstudien an der Carl von Ossietzky Universität, an denen Wissenschaftlerinnen aus fast allen Disziplinen beteiligt sind. - University of Oldenburg, women's studies, gender studies

  12. Geophysical characteristics of the Ninetyeast Ridge–Andaman island arc/trench convergent zone

    Digital Repository Service at National Institute of Oceanography (India)

    Subrahmanyam, C.; Gireesh, R.; Chand, S.; KameshRaju, K.A.; Rao, D.G.

    modeling of the gravity anomalies also suggests that the NER topography and its compensating roots still remain locked. Seismic data on the deep crustal structure of the NER near the subduction zone is required to resolve this issue more clearly... bottom seismology, Geophys. J. Int. 144 (2001) 414-431. [20] D. L. Turcotte, G. Schubert, Geodynamics: Applications of Continuum Physics to Geological Problems, John Wiley & Sons, 1982. [21] P. A. Allen, J. R. Allen, Basin Analysis...

  13. A study on relationship between social entrepreneurship and organizational commitment

    OpenAIRE

    Yadollah Hemmati; Seyed Hasan Kia

    2013-01-01

    During the past few years, organizational commitment has been a major concern in different types of business activities including banking industry. In this paper, we present an empirical investigation to study the relationship between social entrepreneurship and organizational commitment. The proposed study of this paper adapts a standard questionnaire developed by Meyer and Allen [Meyer, J. P., & Allen, N. J. (1991). A three-component conceptualization of organizational commitment. Human res...

  14. Event planning the ultimate guide to successful meetings, corporate events, fundraising galas, conferences, conventions, incentives and other special events

    CERN Document Server

    Allen, Judy

    2009-01-01

    This bestselling all–in–one guide to the event planning business is back and better than ever, fully updated and revised to reflect the very latest trends and best practices in the industry. This handy, comprehensive guide includes forms, checklists, and tips for managing events, as well as examples and case studies of both successful and unsuccessful events. Judy Allen (Toronto, ON, Canada) is founder and President of Judy Allen Productions, a full–service event planning production company.

  15. Proceedings of the Fifth Annual Acquisition Research Symposium |h [electronic resource] : |b creating synergy for informed change

    OpenAIRE

    2008-01-01

    History has not recorded the extent to which Allen's call for 1,000 accountants was answered. History has recorded, however, the very clear and significant contributions of his Bureau's work--particularly its research agend--to the formation of the field of American Public Administration. Thus, while Allen certainly perceived the potential contributions of administrative research, it's highly doubtful he could have imagined the development and maturation over the next century of this entirel...

  16. The Ethernet Communication Between PLCs%可编程控制器之间的以太网通信

    Institute of Scientific and Technical Information of China (English)

    魏震; 贾青

    2003-01-01

    介绍了基于以太网的PLC之间的通信,着重叙述了Allen-Bradley的PLC产品通过以太网通信来实现分布式控制的一个实例.并对Allen-Bradley、三菱、松下三家公司的PLC通信实现方式进行了比较.

  17. A MONOGRAPH OF THE GENUS NEOCINNAMOMUM LIOU HO

    Directory of Open Access Journals (Sweden)

    A. J. G. H. KOSTERMANS

    1974-12-01

    Full Text Available ABSTRACTThe Asiatic Genus Neocinamomum comprises 6 species, of whichN. atjehense is described here for the first time. cinnamomum fargesiiLee. is moved to Neocinnamomum, N. willsonii Allen is consideredto be conspeeific with it. N. delavayi var.Mekongense hand.Mazz israised to specific rank. N. hainanianum  Allen  is reduced to N. lecomtei.Excluded from the genus is N. confertiflorum, which is moved toLitsea.

  18. Working at Congress : a Sandian's experience.

    Energy Technology Data Exchange (ETDEWEB)

    Allen, Matthew

    2009-03-01

    During the 110th Congress (calendar years 2007 and 2008), Matthew Allen, a Sandian nuclear scientist, served as a Congressional Fellow on the Committee on Homeland Security in the House of Representatives. This report is an informative account of the role staffers play in assisting the members of Congress in their oversight and legislative duties. It is also a personal account of Matthew Allen's experience as a committee staffer in the House of Representatives.

  19. Historical literature review on waste classification and categorization

    Energy Technology Data Exchange (ETDEWEB)

    Croff, A.G.; Richmond, A.A.; Williams, J.P.

    1995-03-01

    The Staff of the Waste Management Document Library (WMDL), in cooperation with Allen Croff have been requested to provide information support for a historical search concerning waste categorization/classification. This bibliography has been compiled under the sponsorship of Oak Ridge National Laboratory`s Chemical Technology Division to help in Allen`s ongoing committee work with the NRC/NRCP. After examining the search, Allen Croff saw the value of the search being published. Permission was sought from the database providers to allow limited publication (i.e. 20--50 copies) of the search for internal distribution at the Oak Ridge National Laboratory and for Allen Croff`s associated committee. Citations from the database providers who did not grant legal permission for their material to be published have been omitted from the literature review. Some of the longer citations have been included in an abbreviated form in the search to allow the format of the published document to be shortened from approximately 1,400 pages. The bibliography contains 372 citations.

  20. Boundary Layers Associated with a Coupled Navier-Stokes/Allem-Cahn System: The Non-Characteristic Boundary Case

    Institute of Scientific and Technical Information of China (English)

    XIE Xiaoqiang

    2012-01-01

    The goal of this article is to study the boundary layer of Navier-Stokes/Allen-Cahn system in a channel at small viscosity.We prove that there exists a boundary layer at the outlet(down-wind)of thickness v,where v,is the kinematic viscosity.The convergence in L2 of the solutions of the Navier-Stokes/Allen-Cahn equations to that of the Euler/Allen-Cahn equations at the vanishing viscosity was established.In two dimensional case we are able to derive the physically relevant uniform in space and time estimates,which is derived by the idea of better control on the tangential derivative and the use of an anisotropic Sobolve imbedding.

  1. Efficient Synthesis of Bi-butenolides Derivatives through Oxidative Dimeric Cyclizing-Coupling Reaction of 2,3-Allenoic Acids

    Institute of Scientific and Technical Information of China (English)

    MA Sheng-Ming; YU Zhan-Qian

    2003-01-01

    @@ Allenes are three carbon functional groups possessing two perpendicular π-orbitals. Their unique reaction be havior is spread over three carbon atoms, which shows great potential in organic synthesis in terms of chirality transfer and diversity, as a result of the axial chirality as well as the substituent-loading capability. Recently, we devoted ourselves to establish a new area of oxidative cyclization-dimerization reactions between two functionalized allenes to give interesting bicyclic compounds in a single step. The formidable challenges are to match the reactivities of two allenes, and regenerate the catalyst, which would be reduced after reductive-elimination. In this paper we wish to disclose our recent studies on the synthesis of bi-butenolides from oxidative cyclization self-coupling reaction of 2,3 allenoic acids, in which a new system (PdCl2/RI/air) for regeneration of the palladium(Ⅱ) species was observed.

  2. Binaural dereverberation based on interaural coherence histograms

    DEFF Research Database (Denmark)

    Westermann, Adam; Buchholz, Jorg M.; Dau, Torsten

    2013-01-01

    A binaural dereverberation algorithm is presented that utilizes the properties of the interaural coherence (IC) inspired by the concepts introduced in Allen et al. [J. Acoust. Soc. Am. 62, 912-915 (1977)]. The algorithm introduces a non-linear sigmoidal coherence-to-gain mapping that is controlled...... by an online estimate of the present coherence statistics. The algorithm automatically adapts to a given acoustic environment and provides a stronger dereverberation effect than the original method presented in Allen et al. [J. Acoust. Soc. Am. 62, 912-915 (1977)] in most acoustic conditions. The...... Allen et al. were considered as reference systems. The results revealed that the proposed coherence-based approach is most successful in acoustic scenarios that exhibit a significant spread in the coherence distribution where direct sound and reverberation can be segregated. This dereverberation...

  3. Impacts from a fossil fuel power plant on ozone levels in Memphis, Tennessee

    International Nuclear Information System (INIS)

    The Tennessee Valley Authority (TVA) Allen power plant is located on the Mississippi River in the southwest corner of Memphis, Tennessee. Allen has three coal-fired cyclone boilers with a rated capacity of 272 MW each. It is a Phase 2 plant under Title IV of the Clean Air Act and is the largest single source of NOx in the Memphis area. TVA plans to reduce Allen NOx emissions through a combination of burning low-sulfur coal (which has the benefit of reducing NOx emissions while also reducing SO2 emissions) and installing gas re-burn technology. A modeling study using the SAI, Inc., UAM-V photochemical model was conducted to examine the potential impacts of NOx reductions on ozone levels in the Memphis area. A series of four model simulations were made in which different Allen emissions scenarios were examined. The focus period of the photochemical modeling was 11--14 July 1995 when measurements in and near Memphis indicated peak hourly ozone levels of 135--140 ppb. This analysis primarily examined computed impacts within 50 km of Memphis. Allen was computed to contribute as much as 20--30 ppb to ground ozone levels 20-50 km downwind using its NOx emission rate before Title IV compliance. After compliance it was computed to contribute only about 10--20 ppb. At the same time, maximum daily ozone reductions due to Allen NOx titration of ozone were between 30 and 60 ppb. These benefits will be reduced by 30--50% after Title IV compliance, and are expected to occur within 30 km of the plant. More model grid cells indicated dis-benefits (net ground-level ozone increases) than benefits on three of the four episode days using the Title IV compliance emission rate. Significant ozone dis-benefits were expected because of the well-documented NO titration of ozone within plumes having a high ratio of NO to volatile organic compounds

  4. Wider die Fortschrittskritik. Mit einem Appendix zum Fortschritt als Human Enhancement

    Directory of Open Access Journals (Sweden)

    Denis Mäder

    2014-12-01

    Full Text Available Die moderne Fortschrittsidee ist die Idee, dass die Zeit eine stetige Verbesserung in allen menschlichen Angelegenheiten bringen wird. Diese Idee war immer umstritten. Spätestens seit der Mitte des 20. Jahrhunderts ist das philosophische Nachdenken über den Fortschritt fast ausschließlich das: Fortschrittskritik. Der vorliegende Aufsatz stellt die gängigen Argumentationsmuster der Fortschrittskritiker vor, allen voran die Vorstellung, Fortschritt müsse dialektisch verstanden werden als Verkehrung guter Absichten in ihr Gegenteil. Er hinterfragt dieses Denkmuster und skizziert, in Opposition dazu, einen zeitgemäßen Fortschrittsbegriff.

  5. Why were "starvation diets" promoted for diabetes in the pre-insulin period?

    Directory of Open Access Journals (Sweden)

    Mazur Allan

    2011-03-01

    Full Text Available Abstract In the decade before the discovery of insulin, the prominent American physicians Frederick Allen and Elliott Joslin advocated severe fasting and undernutrition to prolong the lives of diabetic patients. Detractors called this "starvation dieting," and some patients did indeed starve to death. Allen and Joslin promoted the therapy as a desperate application of animal experimentation to clinical treatment, and texts still describe it that way. This justification was exaggerated. The public record contains only the briefest account of relevant animal experiments, and clinical experience at the time provided little indication that severe undernutrition had better outcomes than low carbohydrate diets then in use.

  6. Particles, waves and storms in geospace: Recent advances and persistent gaps in our comprehension

    Science.gov (United States)

    Daglis, Ioannis A.

    2016-07-01

    The terrestrial magnetosphere features plasma populations with a wide dynamic range of energies, spanning more than 8 orders of magnitude -- from ≃V in the plasmasphere to tens of MeV in the outer Van Allen belt and hundreds of MeV in the inner Van Allen belt. A wealth of in-situ measurements of particles and waves, and ground-based measurements of waves, has shaped a comprehensive understanding of the interactions of the various plasma populations with electromagnetic waves during geospace magnetic storms and magnetospheric substorms. We shall discuss recent advances and persistent gaps in our comprehension of inner magnetosphere dynamics.

  7. The chemistry of bisallenes

    Directory of Open Access Journals (Sweden)

    Henning Hopf

    2012-11-01

    Full Text Available This review describes the preparation, structural properties and the use of bisallenes in organic synthesis for the first time. All classes of compounds containing at least two allene moieties are considered, starting from simple conjugated bisallenes and ending with allenes in which the two cumulenic units are connected by complex polycyclic ring systems, heteroatoms and/or heteroatom-containing tethers. Preparatively the bisallenes are especially useful in isomerization and cycloaddition reactions of all kinds leading to the respective target molecules with high atom economy and often in high yield. Bisallenes are hence substrates for generating molecular complexity in a small number of steps (high step economy.

  8. Wild dogma Ⅱ: The role and implications of wild dogma for wild dog management in Australia

    Institute of Scientific and Technical Information of China (English)

    Benjamin L. ALLEN; Richard M. ENGEMAN; Lee R. ALLEN

    2011-01-01

    The studies of Allen (2011) and Allen et al.(2011) revently examined the methodology underpinning claims that dingoes provide net benefits to biodiversity by suppressing foxes and cats.They found most studies to have design flaws and/or observational methods that preclude valid interpretations from the data,describing most of the current literature as 'wild dogma'.In this short supplement,we briefly highlight the roles and implications of wild dogma for wild dog management in Australia.We discuss nomenclature,and the influence that unreliable science can have on policy and practice changes related to apex predator management [Current Zoology 57 (6):737-740,2011].

  9. Alice Munro: A Bibliography

    OpenAIRE

    Bigot, Corinne

    2014-01-01

    I. Collections of short stories by Alice Munro Dance of the Happy Shades, Toronto, Ryerson Press, 1968, 224 pp; New York, McGraw Hill, 1973, 224 pp; London, Allen Lane, 1974, 224 pp. Lives of Girls and Women, Toronto, McGraw Hill Ryerson, 1971, 254 pp; New York,McGraw Hill, 1972, 250 pp; London, Allen Lane, 1974, 250 pp. Something I’ve Been Meaning To Tell You, Toronto and New York, McGraw-Hill Ryerson, 1974, 246 pp. Who Do You Think You Are?, Toronto, Macmillan, 1974, 206 pp. Printed in the ...

  10. Radiation hardness of a composite bolometer cooled at 3He temperature

    International Nuclear Information System (INIS)

    We used the cyclotron facility of the Joint Research Centre at Ispra (Varese) in order to investigate the performance of a cryogenic bolometric detector under proton irradiation, as a simulation of the operating conditions on a satellite, during the crossing of the Van Allen Belts. We investigated the radiation hardness of the composite bolometer with 12 MeV protons, after calibration in the energy range 12-38 MeV. We found that, contrary to photoconductors, the performance of the cryogenic composite bolometer is not significantly affected by radiation, at the doses expected in the Van Allen Belts. (orig.)

  11. Untersuchungen zur Oxygenierung organischer Substrate durch Oxo-Verbindungen der Elemente Vanadium und Mangan

    OpenAIRE

    Brandt, Marcus

    2007-01-01

    Die vorliegende Arbeit beschäftigt sich mit der Oxygenierung von ungesättigten Kohlenwasserstoffen durch Übergansmetalle und katalytischer Oxidation von Olefinen und Aliphaten. Sie ist in die folgenden drei Teile gegliedert: 1. Matrixisolationsstudien zum System MnO3Cl/Allen: Das System Permanganylchlorid/Allen wurde in einer Argonmatrix durch Photolyse (546 nm) zu Reaktion gebracht. Die entstandenen Komplexe (O=)2MnCl(O=CCH2CH2) 37R und (O=)2MnCl(H2COCCH2) 38R wurden mit Hilfe der IR-Spekt...

  12. Chinese Modernization and Christianity - with Special Reference to the Reform Movement-

    OpenAIRE

    深澤, 秀男

    1999-01-01

    Already,I wrote about Martin, Allen, Richard and Ronghong(容閎). So in this paper, I want to disccus foreign missionaries and Chinese Christian's relationships to the Reform Movement in the late Qing(清) Dynasty. First, I will disccus foreign missionaries such as Martin, Allen and Richard. Next, I will discuss Chinese Christian such as RongHong(容閎). Lastly, Ⅰ will disuss the relationships of Christianity to the Reform Movement in the late Qing(清) Dynasty.

  13. Leegitsev torn - kaasaegne katastrooffilm / Timo Diener

    Index Scriptorium Estoniae

    Diener, Timo

    2004-01-01

    Kuidas sündis Hollywoodi esimene suur katastrooffilm "Leegitsev torn" ("The Towering Inferno") : produtsent Irwin Allen : stsenarist Stirling Silliphant : režissöör John Guillermin : peaosades Paul Newman ja Steve McQueen : Ameerika Ühendriigid 1974. Järgneb 6., 13., 20. sept. 2004, lk. 38

  14. In Search of Critical Pedagogy in Sexuality Education: Visions, Imaginations, and Paradoxes

    Science.gov (United States)

    Sanjakdar, Fida; Allen, Louisa; Rasmussen, Mary Lou; Quinlivan, Kathleen; Brömdal, Annette; Aspin, Clive

    2015-01-01

    The broad aim of most sexuality educational programs is to improve and promote health among students (Epstein and Johnson 1998; Allen 2005; Aggleton and Campbell 2000). Various education programs aim for young people to receive preparation for their sexual lives and be educated against sexual abuse and exploitation (Carmody 2009; Bay-Cheng 2003),…

  15. Plaadisoovitus

    Index Scriptorium Estoniae

    2006-01-01

    Uutest heliplaatidest Razorlight, lordi "The Arocalypse", Marie Fredriksson "Min Bäste Vän", Muse "Black Holes & Revelations", Lily Allen "Alright, Still", "Just1 Hits", "Summer Jam 2006", "On The Beach. Vol 2", "Zero 7", "Ultimate Dance", Sergio Mendes "Pure Bossa Nova", Keane "Under The Iron Sea"

  16. Journal of Mormon History Vol. 26, No. 2, 2000

    OpenAIRE

    2000-01-01

    CONTENTS LETTERS viii ARTICLES --Mormons in Congress, 1851-2000 Robert R. King and Kay Atkinson King, 1 --Ricks College: The Struggle for Permanancy and Place, 1956-60 Val G. Hemming, 51 --Corinne Allen and Post-Manifesto Antipolygamy Joan Smyth Iversen, 110 --Emmeline B. Wells in Washington: The Search for Mormon Legitimacy ...

  17. 75 FR 19544 - Inland Navigation Rules

    Science.gov (United States)

    2010-04-15

    ... ``Search.'' FOR FURTHER INFORMATION CONTACT: If you have questions on this rule, call or e-mail Lieutenant... Allen-Morgan City Alternate Route, and that part of the Atchafalaya River above its junction with the... conditions; (4) At night the presence of background light such as from shores lights or from back scatter...

  18. An Investigation of the Awareness and Use of Style in Adolescents' Reading and Writing.

    Science.gov (United States)

    Church, Elizabeth; Bereiter, Carl

    A study assessed the ability of 20 eleventh grade students to recognize particular stylistic features when reading and then to use such features in their writing. Half the subjects were given a model paragraph from an Edgar Allen Poe story, without having the story identified for them, while the other half received only a verbal summary of the…

  19. For any purpose; Fuer jeden Zweck

    Energy Technology Data Exchange (ETDEWEB)

    Vorsatz, William

    2013-11-01

    In this article, the offers by almost all car manufacturers are presented in the field of battery-powered models or plug-in hybrids in short form. [German] In diesem Artikel werden in kurzer Form die Angebote von fast allen Autobauern auf dem Gebiet der batteriebetriebene Modelle oder Plug-in-Hybride vorgestellt.

  20. Onderzoek betreffende de lotgevallen van verplegenden, die een klinische vorm van tuberculose hebben gehad (medisch zowel als sociaal bezien)

    NARCIS (Netherlands)

    Oordt, Pieter van

    1961-01-01

    Het voorkomen van tuberculose onder verplegenden heeft zeer lang de aandacht gehad van allen, die bij de bestrijding betrokken waren. Diagnostische en therapeutische mogelijkheden waren echter slechts in beperkte mate aanwezig en verschilden niet veel van die, welke voor de gehele bevolking golden.

  1. Revision der Rajoiden-Arten des nördlichen Indischen Ozean und Indopazifik (Elasmobranchii, Batoidea, Rajiformes)

    NARCIS (Netherlands)

    Stehmann, M.

    1976-01-01

    An Hand allen verfügbaren Materiales werden die 8 aus dem Indischen Ozean und Indopazifik beschriebenen Raja-Arten auf ihre Validität und generische sowie subgenerische Zugehörigkeit untersucht. Die Bearbeitung der Typen und wenigen zusätzlichen Exemplare weist eine neunte Spezies nach. R. (Rostrora

  2. The Politics of Physical Education

    Science.gov (United States)

    Claxton, David

    2012-01-01

    This paper, which was given as the Dudley Allen Sargent lecture at the 2012 conference of the National Association for Kinesiology and Physical Education in Higher Education, discusses the politics of physical education. It examines how both national politics and local/campus politics affect the discipline. Drawing from the history of national…

  3. Tähesadu kunstihoones

    Index Scriptorium Estoniae

    2005-01-01

    Tallinna Kunstihoones Briti Nõukogu koostatud näitus "Supernoova". Kuraator Caroline Douglas. Osalevad Gary Hume, Liam Gillick, Jane & Louise Wilson, Sarah Morris, Haluk Akakce, Phillip Allen, Keith Coventry, Dan Norton, Toby Paterson, Tony Swain, John Wood & Paul Harrison, Richard Wright, Toby Ziegler

  4. NAEP 1999 Long-Term Trend Technical Analysis Report: Three Decades of Student Performance. NCES 2005-484

    Science.gov (United States)

    Allen, Nancy L.; McClellan, Catherine A.; Stoeckel, Joan J.

    2005-01-01

    This report provides an update to the technical analysis procedures documenting the 1996 National Assessment of Educational Progress (NAEP) as presented in "The NAEP 1996 Technical Report" (Allen, Carlson, and Zelenak, 1999). It describes how the 1999 long-term trend data were incorporated into the trend analyses. Since no national main or state…

  5. Proceedings of the Annual Meeting of the Association for Education in Journalism and Mass Communication (86th, Kansas City, Missouri, July 30-August 2, 2003). Entertainment Studies Interest Group.

    Science.gov (United States)

    2003

    The Entertainment Studies Interest Group of the proceedings contains the following 9 papers: "Beyond Modern Racism: Backlash and Brutality on 'The Shield'" (John D. Richardson); "Big Brother and the T-Group: How We Might Learn from Reality Television" (Rod Allen and Nod Miller); "Hegemony and Counterhegemony in Bravo's 'Gay Weddings'" (Erika…

  6. Mom's Milk is Best (A Cup of Health with CDC)

    Centers for Disease Control (CDC) Podcasts

    2013-02-28

    Breastfeeding is the best way to ensure that growing babies are getting essential nutrients. In this podcast, Jessica Allen discusses the benefits of breastfeeding.  Created: 2/28/2013 by MMWR.   Date Released: 2/28/2013.

  7. Be Brave PSA (:60)

    Centers for Disease Control (CDC) Podcasts

    2011-08-04

    In this 60-second public service announcement, gynecologic cancer survivor, Jenny Allen, urges women to see a doctor if symptoms last two weeks or more.  Created: 8/4/2011 by National Center for Chronic Disease Prevention and Health Promotion.   Date Released: 8/4/2011.

  8. Be Brave

    Centers for Disease Control (CDC) Podcasts

    2011-08-04

    In this 60-second podcast, gynecologic cancer survivor, Jenny Allen, urges women to see a doctor if symptoms last two weeks or more.  Created: 8/4/2011 by National Center for Chronic Disease Prevention and Health Promotion.   Date Released: 8/4/2011.

  9. The Analysis of the Gothic Element--High Emotion in The Tell-tale Heart

    Institute of Scientific and Technical Information of China (English)

    李莎

    2014-01-01

    The Tell-tale Heart is one of the most typical gothic novel of Allen Poe’s. This article intends to analyse one of the gothic elements, that is, high emotion which is employed in The Tell-tale Heart to contribute to the horror effect.

  10. The Analysis of the Gothic Element——High Emotion in The Tell-tale Heart

    Institute of Scientific and Technical Information of China (English)

    李莎

    2014-01-01

    The Tell-tale Heart is one of the most typical gothic novel of Allen Poe’s. This article intends to analyse one of the gothic elements, that is, high emotion which is employed in The Tell-tale Heart to contribute to the horror effect.

  11. Allergy Capitals

    Science.gov (United States)

    ... McAllen, TX The report looks at 3 important factors: Pollen score Allergy medication usage Availability of Board-certified allergists This year’s report named Jackson, Mississippi, as the top Spring Allergy Capital due to its: Higher than average pollen Higher ...

  12. Adequacy Model for School Funding

    Science.gov (United States)

    Banicki, Guy; Murphy, Gregg

    2014-01-01

    This study considers the effectiveness of the Evidence-Based Adequacy model of school funding. In looking at the Evidence-Based Adequacy model for school funding, one researcher has been centrally associated with the development and study of this model. Allen Odden is currently a professor in the Department of Educational Leadership and Policy…

  13. Pastron and Walsh: Archaeological Excavations at CA-SFR-113, the Market Street Shell Midden, San Francisco, California

    OpenAIRE

    Jackson, Thomas L.

    1991-01-01

    Archaeological Excavations at CA-SFR-113, the Market Street Shell Midden, San Francisco, California Allen G. Pastron and Michael R. Walsh. Salinas, CA.: Coyote Press Archives of California Prehistory No. 25, 1988, vi + 91 pp., 10 figs., 7 tables, 5 appendices, $ 7.45 (paper)

  14. Lebensmittelkonsum, Ernährung & Gesundheit

    DEFF Research Database (Denmark)

    Daniel, Hannelore; Reisch, Lucia; Hamm, Ulrich

    , dass die Bioökonomie den Dialog mit den Konsumenten und allen gesellschaftlichen Gruppen von Anfang an sucht, intensiv begleitet und pflegt. Dafür ist der Sektor Lebensmittel und Ernährung in seiner Unmittelbarkeit in besonderer Weise geeignet. Grundlage für einen erfolgreichen Dialog ist jedoch eine...

  15. Lost in Translation: Importance of Effective Communication in Online Education

    Science.gov (United States)

    Betts, Kristen

    2009-01-01

    Approximately 3.9 million students enrolled in at least one online course in fall 2007. According to Allen and Seaman (2008), online education growth rates have continued to outpace total higher education growth rates and there are no signs of online growth slowing down. As higher education institutions offer increasing numbers of online and…

  16. Rap Music in School Counseling Based on Don Elligan's Rap Therapy

    Science.gov (United States)

    Gonzalez, Tiphanie; Hayes, B. Grant

    2009-01-01

    In 2000, Don Elligan introduced Rap Therapy as a psychotherapeutic intervention for working with at-risk youths, primarily African American males whose identities were highly influenced by rap music. Rap music can engage a population of youth who often enter counseling apprehensively (Elligan 2000, 2004; Tillie-Allen, 2005). This article reviews…

  17. Drugscarrieres. Van crimineel tot conventioneel

    NARCIS (Netherlands)

    Swierstra, Koert

    1990-01-01

    Onder drugs verstaat men een verzameling bij de wet verboden genotmiddelen. Sinds 1976 maakt de Nederlandse Opiumwet onderscheid tussen soft- en harddrugs; aan de laatste wordt een 'onaanvaardbaar risico' toegedacht. Onze studie gaat over harddrugsgebruikers, allen in ieder geval opiaatverslaafd (he

  18. Job Satisfaction, Organizational Commitment, and Turnover Intention of Online Teachers in the K-12 Setting

    Science.gov (United States)

    Larkin, Ingle M.; Brantley-Dias, Laurie; Lokey-Vega, Anissa

    2016-01-01

    The purpose of this study was to measure and explore factors influencing K-12 online teachers' job satisfaction, organizational commitment, and turnover intentions. Using Maslow's Hierarchy of Needs (1954), Herzberg's Two-Factor Theory of Satisfaction (1959, 1968), Meyer and Allen's measure of Organizational Commitment (1997), and Fishbein and…

  19. Forests Hold the Key

    Institute of Scientific and Technical Information of China (English)

    2008-01-01

    An interview with Mr. Allen Tak Yuen Chan,Managing Director and CEO of Sino-Forest Corp. of Canada A lien Tak Yuen Chan,Managing Director and CEO of the Sino-Forest Corp.,is an acclaimed academic and a columnist.

  20. Fucoxanthin: A Promising Medicinal and Nutritional Ingredient

    OpenAIRE

    Hui Zhang; Yibo Tang; Ying Zhang; Shuofeng Zhang; Jing Qu; Xu Wang; Ran Kong; Chunchao Han; Zhenquan Liu

    2015-01-01

    Fucoxanthin, an allenic carotenoid, can be isolated from edible brown seaweeds. Recent studies have reported that fucoxanthin has many physiological functions and biological properties, such as antiobesity, antitumor, antidiabetes, antioxidant, anti-inflammatory, and hepatoprotective activities, as well as cardiovascular and cerebrovascular protective effects. Therefore, fucoxanthin can be used as both medicinal and nutritional ingredient to prevent and treat chronic diseases. Although fucoxa...

  1. Alcohol consumption and risk of type 2 diabetes in European men and women : influence of beverage type and body size The EPIC-InterAct study

    NARCIS (Netherlands)

    Beulens, J. W. J.; van der Schouw, Y. T.; Bergmann, M. M.; Rohrmann, S.; Schulze, M. B.; Buijsse, B.; Grobbee, D. E.; Arriola, L.; Cauchi, S.; Tormo, M-J; Allen, N. E.; van der A, D. L.; Balkau, B.; Boeing, H.; Clavel-Chapelon, F.; de Lauzon-Guillan, B.; Franks, P.; Froguel, P.; Gonzales, C.; Halkjaer, J.; Huerta, J. M.; Kaaks, R.; Key, T. J.; Khaw, K. T.; Krogh, V.; Molina-Montes, E.; Nilsson, P.; Overvad, K.; Palli, D.; Panico, S.; Ramon Quiros, J.; Ronaldsson, O.; Romieu, I.; Romaguera, D.; Sacerdote, C.; Sanchez, M-J; Spijkerman, A. M. W.; Teucher, B.; Tjonneland, A.; Tumino, R.; Sharp, S.; Forouhi, N. G.; Langenberg, C.; Feskens, E. J. M.; Riboli, E.; Wareham, N. J.

    2012-01-01

    Beulens JWJ, van der Schouw YT, Bergmann MM, Rohrmann S, B Schulze M, Buijsse B, Grobbee DE, Arriola L, Cauchi S, Tormo M-J, Allen NE, van der A DL, Balkau B, Boeing H, Clavel-Chapelon F, de Lauzon-Guillan B, Franks P, Froguel P, Gonzales C, Halkjaer J, Huerta JM, Kaaks R, Key TJ, Khaw KT, Krogh V,

  2. Studies in Teaching: 2009 Research Digest. Research Projects Presented at Annual Research Forum (15th, Winston-Salem, North Carolina, December 2009)

    Science.gov (United States)

    McCoy, Leah P., Ed.

    2009-01-01

    This document presents the proceedings of the Annual Research Forum. Included herein are the following 29 studies: (1) What Factors Influence Algebra 1 Students' Attitudes toward Math? (Elizabeth A. Allen); (2) Low-Income Student and Teacher Impressions of Kagan Cooperative Learning (Andrea Anderson); (3) Developing and Implementing an Articulated…

  3. Transformational Leadership and Organizational Commitment: A Study of UNC System Business School Department Chairs

    Science.gov (United States)

    Luton, Bill

    2010-01-01

    Ample evidence is available citing a positive relationship between transformational leadership and organizational commitment (Boerner et al., 2007; Bono & Judge, 2003; Bycio, Hackett, & Allen, 1995; Chen, 2004; Emery & Barker, 2007; Walumbwa, Orwa, Wang, & Lawler, 2005). The majority of research on leadership in higher education, however, is based…

  4. 75 FR 35627 - Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures...

    Science.gov (United States)

    2010-06-23

    ... Policies and Procedures (44 FR 11034; February 26, 1979); and (3) does not warrant preparation of a..., 2010. John M. Allen, Director, Flight Standards Service. Adoption of the Amendment 0 Accordingly...-Jul-10 MT Billings Billings Logan Intl. 0/3487 6/9/10 LOC/DME RWY 28R, ORIG-B. 29-Jul-10 IA...

  5. 75 FR 60305 - Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures...

    Science.gov (United States)

    2010-09-30

    ... Policies and Procedures (44 FR 11034; February 26, 1979); and (3) does not warrant preparation of a... September 17, 2010. John M. Allen, Director, Flight Standards Service. Adoption of the Amendment 0...-A. 21-Oct-10..... MA BOSTON GEN EDWARD 0/5055 9/7/10 VOR/DME RWY 33L, AMDT 2C. LAWRENCE LOGAN...

  6. 78 FR 73884 - Notice Pursuant to the National Cooperative Research and Production Act of 1993; National...

    Science.gov (United States)

    2013-12-09

    ... Consortium (``NAC''). In addition, ARES, Inc., Port Clinton, OH; Arrow Tech Associates, Inc., So. Burlington, VT; B.M.L. Tool & Mfg. Corp., Monroe, CT; BlazeTech Corporation, Woburn, MA; Booz Allen Hamilton, McLean, VA; Central Screw Products dba Detroit Gun Works, Troy, MI; Cherokee-Technical Specialists,...

  7. A Symbiotic Relationship? Exploring the Relationships between College Students and Community Partners Who Engage in a Shared Service-Learning Project

    Science.gov (United States)

    Budhai, Stephanie Smith

    2012-01-01

    Broadly defined as the combination and/or integration of participation in a community service activity with formal learning and reflection (Clark, 1999; Reising, Allen, & Hall, 2006; Tucker, McCarthy, & Lenk, 1998; Yan & Rodgers, 2006), service-learning activities range from voluntary student organized initiatives to mandatory…

  8. Talking to Your Doctor

    Medline Plus

    Full Text Available ... to Ask about Your Diabetes Medicines Español More Information For more information about this publication, contact Dr. Marin Allen . This ... Footer NIH Home En Español Site Map Visitor Information Frequently Asked Questions Web Policies and Notices Freedom ...

  9. Strange country this: lesbianism and North American Indian tribes.

    Science.gov (United States)

    Grahn, J

    1986-05-01

    This article is an exploration of historical names and functions of gay and lesbian people among traditional North American Indian tribes. Some detailed descriptions of individual offices are included, such as "manly hearted" women and shamanic cross-dressing men, as well as the original definition of "dyke" and "ceremonial lesbian" as described by Paula Gunn Allen (Laguna Pueblo). PMID:3531323

  10. TRIBROMOMETHANE EXPOSURE AND DIETARY FOLATE DEFICIENCY IN THE FORMATION OF ABERRANT CRYPT FOCI IN THE COLONS OF F344/N RATS

    Science.gov (United States)

    TRIBROMOMETHANE EXPOSURE AND DIETARY FOLATE DEFICIENCY IN THE FORMATION OF ABERRANT CRYPT FOCI IN THE COLONS OF F344/N RATSDavid R. Geter', Tanya M. Moore', Michael H. George', Steve R. Kilburn', Gloria Huggins-Clark', James W. Allen', and Anthony B. DeAngelo' 'National H...

  11. Zero-emission vehicle technology assessment. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Woods, T.

    1995-08-01

    This is the final report in the Zero-Emission Vehicle (ZEV) Technology Assessment, performed for NYSERDA by Booz-Allen & Hamilton Inc. Booz-Allen wrote the final report, and performed the following tasks as part of the assessment: assembled a database of key ZEV organizations, their products or services, and plans; described the current state of ZEV technologies; identified barriers to widespread ZEV deployment and projected future ZEV technical capabilities; and estimated the cost of ZEVs from 1998 to 2004. Data for the ZEV Technology Assessment were obtained from several sources, including the following: existing ZEV industry publications and Booz-Allen files; major automotive original equipment manufacturers; independent electric vehicle manufacturers; battery developers and manufacturers; infrastructure and component developers and manufacturers; the U.S. Department of Energy, the California Air Resources Board, and other concerned government agencies; trade associations such as the Electric Power Research Institute and the Electric Transportation Coalition; and public and private consortia. These sources were contacted by phone, mail, or in person. Some site visits of manufacturers also were conducted. Where possible, raw data were analyzed by Booz-Allen staff and/or verified by independent sources. Performance data from standardized test cycles were used as much as possible.

  12. Anacreon's pubic hair

    OpenAIRE

    Giangrande, Giusseppe

    1995-01-01

    Un análisis de Anacr. 13 Gent. demuestra que allen tina del verso 8 se refiere al vello púbico del poeta. An analysis of Anacr. 13 Gent. demonstrates that ᾶλλην τινά in line 8 denotes the poets's pubic hair.

  13. Density estimates for phase transitions with a trace

    CERN Document Server

    Sire, Yannick

    2010-01-01

    We consider a functional obtained by adding a trace term to the Allen-Cahn phase segregation model and we prove some density estimates for the level sets of the interfaces. We treat in a unified way also the cases of possible degeneracy and singularity of the ellipticity of the model and the quasiminimal case.

  14. Raising the Bar: How a Teacher Built a Ballet-Centered Public School that Aces Standardized Tests

    Science.gov (United States)

    Dalton, Aaron

    2005-01-01

    In this article, the author features Todd Eric Allen, an acclaimed ballet dancer, who returns home to Florida's so-called Redneck Riviera and opens a magnet school for dance. When asked the inevitable question of what an internationally known ballet dancer is doing teaching 3rd, 4th, and 5th graders in Fort Walton Beach, he simply replies in a way…

  15. 77 FR 3282 - Notice of Lodging of Consent Decree Under the Comprehensive Environmental Response, Compensation...

    Science.gov (United States)

    2012-01-23

    ... [Federal Register Volume 77, Number 14 (Monday, January 23, 2012)] [Notices] [Pages 3282-3283] [FR..., Environment and Natural Resources Division. [FR Doc. 2012-1240 Filed 1-20-12; 8:45 am] BILLING CODE 4410-15-P ....; Aztec Industries, L.L.C.; and Estate of Allen Adams, Civil Action No. 3:12-cv-00054, was lodged with...

  16. The Montessori Method's Use of Seguin's Three-Period Lesson and Its Impact on the Book Choices and Word Learning of Students Who Are Deaf or Hard of Hearing

    Science.gov (United States)

    Jackson, Rebecca L. W.

    2011-01-01

    It has been well established in the literature that the acquisition of literacy presents a significant challenge for most students who are deaf or hard of hearing (Allen, 1986; Babbini & Quigley, 1970; Holt, 1993; Lane & Baker, 1974; Marschark, Lang, & Albertini, 2002; Moog & Geers, 1985; Traxler, 2000; Trybus & Karchmer, 1977). Vocabulary, which…

  17. Taking the Time to Read Aloud

    Science.gov (United States)

    Braun, Patricia

    2010-01-01

    Reading aloud is a widely accepted and successful practice in elementary school classrooms, but is rarely found in middle school classrooms (Allen 2000). However, results from initial research on reading aloud in secondary classrooms support the practice (Ivey and Fisher 2006). The benefits of reading aloud are many, but two benefits are…

  18. Eine neue Moriola aus Java

    NARCIS (Netherlands)

    Bachmann, E.

    1936-01-01

    Unter allen Flechten unterscheidet sieh die nur aus Norwegen bekannte Gattung Moriola dadurch, dass ihr Lager aus Goniocysten besteht, das sind kugel- oder länglichrunde oder unregelmässig gestaltete braune Behälter mit netzartiger Oberfläche, von denen braune, zylindrische oder schwach torulöse Hyp

  19. EXERCIZING IJTIHAD Fatwa and Ifta in Indonesia Today

    Directory of Open Access Journals (Sweden)

    Achmad Kemal Riza

    2007-12-01

    Full Text Available Book ReviewBook title:Indonesian Islam: Social Change Through Contemporary FatawaAuthor:M.B. HookerNo. of Pages:X + 310Year:2003Publisher:Asian Studies Association of Australia, Allen and Unwin, and University of Hawaii Press Honolulu

  20. Chemical restraint: "Pharmakologische Ruhigstellung" zum Management aggressiven Verhaltens im stationären Bereich in Theorie und Praxis

    OpenAIRE

    Libal, Gerhard; Plener, Paul L; Fegert, Jörg M; Kölch, Michael

    2006-01-01

    "Chemical restraint" oder "Pharmakologische Ruhigstellung" (PR) ist eine wichtige Intervention beim Management von aggressiven Verhaltensweisen von stationär behandelten Kindern und Jugendlichen. PR sollte ausschließlich im Rahmen eines standardisierten Interventionsplanes zur Anwendung kommen. Die Grundprinzipien eines solchen Zugangs sind transparente Vereinbarungen mit allen Beteiligten zur schnellen, sicheren und personenunabhängigen Reduktion des Verhaltens, ohne dass dabei Folges...

  1. Reading Motivation, Reading Amount, and Text Comprehension in Deaf and Hearing Adults

    Science.gov (United States)

    Parault, Susan J.; Williams, Heather M.

    2010-01-01

    The purpose of this study is to examine the relationship between the variables of reading motivation, reading amount, and text comprehension in deaf and hearing adults. Research has shown that less than 50% of deaf students leave high school reading at or above a fourth-grade level (Allen, 1994). Our question is, how does this affect the levels of…

  2. Keeping VoIP from Being the Wrong Number: Digital Phones Can Save Money for Schools but There Are Many Pitfalls

    Science.gov (United States)

    Nadeau, Burain

    2008-01-01

    In 2004, when Gary L. Allen was considering different approaches for replacing the Amarillo Independent School District's antiquated phone system, he had a dilemma. The goal was to expand the features that the district's phones were capable of while taking advantage of its digital infrastructure and cutting costs. But, should he buy the latest…

  3. 76 FR 30980 - Pacific Gas and Electric Company; Humboldt Bay Independent Spent Fuel Storage Installation...

    Science.gov (United States)

    2011-05-27

    ... COMMISSION Pacific Gas and Electric Company; Humboldt Bay Independent Spent Fuel Storage Installation... INFORMATION CONTACT: William Allen, Project Manager, Licensing Branch, Division of Spent Fuel Storage and... a modification to License No. SNM-2514 at its Humboldt Bay Independent Spent Fuel...

  4. [Fibromatoses in children: classification and clinico-morphological characteristics].

    Science.gov (United States)

    Blinov, V M

    1984-01-01

    Current concepts on fibromatosis are presented, main works dealing with this subject are analysed, the existing classifications are discussed. Clinico-morphological characteristics of individual forms of fibromatosis is given on the basis of Allen's classification. The emphasis is made on the difficulties of diagnosis of inborn local forms of fibromatosis.

  5. 75 FR 22217 - Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures...

    Science.gov (United States)

    2010-04-28

    ... Policies and Procedures (44 FR 11034; February 26, 1979); and (3) does not warrant preparation of a..., 2010. John M. Allen, Director, Flight Standards Service. Adoption of the Amendment 0 Accordingly... Winder Barrow County...... 0/4594 4/14/10 ILS or LOC Rwy 31, Orig 3-Jun-10 OK Medford Medford...

  6. Radiolysis Products in Gamma-Irradiated Plastics by Thermal Desorption-Gas Chromatography-Mass Spectrometry

    OpenAIRE

    Buchalla, Rainer

    2000-01-01

    Niedermolekulare ('flüchtige') Radiolyseprodukte von Kunststoffen wurden mittels Thermodesorption-Gaschromatographie-Massenspektrometrie untersucht. Nach einem qualitativen Screening von sechs medizinisch verwendeten Kunststoffen und Untersuchungen an LDPE- und Polypropylen-Folien lag der Schwerpunkt auf der quantitativen Bestimmung der Radiolyseprodukte von Polystyrol. Eine Sterilisationsdosis von ca. 25 kGy erzeugte in allen untersuchten medizinischen Kunststoffen -- Spritzgußtypen von PS, ...

  7. Situation Comedy, Feminism and Freud: Discourses of Gracie and Lucy.

    Science.gov (United States)

    Mellencamp, Patricia

    This paper is based on a general analysis of 40 episodes of The George Burns and Gracie Allen Show and 170 (of 179) episodes of I Love Lucy, both of which were aired on television during the 1950s. Character portrayals of the stars and supporting actors/actresses are described in detail and analyzed from the perspectives of gender and sex…

  8. Online courses do not help us to interpret non-verbal cues.

    Science.gov (United States)

    Gibbons, Karen

    Daniel Allen's 'Learning in a virtual world' (Careers December 18) pondered the future of nursing education as massive open online courses (MOOCs) gain popularity and expand their content and offerings. Could MOOCs eventually replace face-to-face courses in a nursing degree programme? PMID:24617393

  9. Las especies de Leptohyphidae (Ephemeroptera de las yungas de Argentina y Bolivia: diagnosis, distribución y claves

    Directory of Open Access Journals (Sweden)

    Carlos MOLINERI

    2010-01-01

    Full Text Available Se estudiaron las especies de Leptohyphidae presentes en la selva de neblina de las yungas. Se conocen, de esta región, dieciocho especies en cinco géneros, incluyendo los siguientes nuevos registros: Leptohyphes liniti Wang, Sites & McCafferty, L. maculatus Allen, L. nigripennis Molineri & Zúñiga, L. setosus Allen y Tricorythodes hiemalis Molineri para Bolivia; Leptohyphes hirsutus Allen & Roback y L. petersi Allen para Bolivia y Argentina y Tricorythodes quizeri Molineri para Argentina. Se presentan diagnosis, ilustraciones y claves para distinguir todas las especies tratadas. El estudio de la distribución de las especies presentes en las yungas reveló tres grupos: 1 un grupo formado por cinco especies restringidas a las yungas, 2 un grupo de ocho especies que extienden sus rangos a través de selvas montanas hacia el norte y 3 un grupo de tres especies también presentes en otras áreas hacia el sur (centro de Argentina y norte de la Patagonia.

  10. African American Males Navigate Racial Microaggressions

    Science.gov (United States)

    Hotchkins, Bryan K.

    2016-01-01

    Background/Context: High school educational environments find Black males experience systemic racial microaggressions in the form of discipline policies, academic tracking and hegemonic curriculum (Allen, Scott, & Lewis, 2013). Black males in high school are more likely than their White male peers to have high school truancies and be viewed as…

  11. 77 FR 39983 - Migratory Bird Hunting; Application for Approval of Fluoropolymeric Shot Coatings as Nontoxic for...

    Science.gov (United States)

    2012-07-06

    ... Fish and Wildlife Service 50 CFR Part 20 RIN 1018-AY66 Migratory Bird Hunting; Application for Approval... INFORMATION CONTACT: George Allen, at 703-358-1825. SUPPLEMENTARY INFORMATION: Background The Migratory Bird Treaty Act of 1918 (Act) (16 U.S.C. 703-712 and 16 U.S.C. 742 a-j) implements migratory bird...

  12. 33 CFR 165.1410 - Security Zones; Kauai, HI.

    Science.gov (United States)

    2010-07-01

    ... (See 33 CFR 80.1450). This is a moving security zone when the LPV is in transit and becomes a fixed... nautical miles seaward of the Port Allen COLREGS DEMARCATION (See 33 CFR 80.1440). This is a moving... 300 feet in length that carries passengers for hire. (c) Regulations. (1) Under 33 CFR 165.33,...

  13. A Different Kind of Diversity: Collaboration across Content Areas Intensifies Learning

    Science.gov (United States)

    Goble, Ryan R.; Sousanis, Nick

    2010-01-01

    The discovery of DNA is a classic example of the importance of working across content areas. Conceptually, interdisciplinarity can be fuzzy. Thankfully, scholars like Allen Repko and Julie Thompson Klein offer definitions one can build on. Klein (1990) sees interdisciplinarity as a bridge that links different disciplines while restructuring and…

  14. Work Experiences, Occupational Commitment, and Intent to Enter the Sport Management Profession

    Science.gov (United States)

    Cunningham, George B.; Sagas, Michael

    2004-01-01

    Building from Mever, Allen, & Smith's (1993) work in organizational psychology, the purpose of this study was to examine the relationships among work experiences, affective occupational commitment, and intent to enter the sport management profession among college seniors completing their internship requirements. Results indicate that intent to…

  15. Reviews

    NARCIS (Netherlands)

    NN,

    1967-01-01

    *Allen, B. Molesworth: Malayan Fruits. An introduction to the cultivated species (with Thai and Tamil names). 1967, 245 pp., 73 fig., 10 photo., 1 tab. 8°. Donald Moore Press Ltd. Singapore. M$ 7.50. A popular guide in a handy well illustrated and wellprinted cheap hook of the most common edible fru

  16. City Lights in Modern Times.

    Science.gov (United States)

    O'Toole, Patricia

    1979-01-01

    City Lights Books of San Francisco has served as a literary meeting place, as a bookstore that concentrates on serious literature--especially poetry, as a publisher of significant voices such as those of Allen Ginsberg and Charles Bukowski, and as an institution with a political conscience. (JMD)

  17. Neue Lycaenidenformen aus dem Rijksmuseum in Leiden

    NARCIS (Netherlands)

    Fruhstorfer, H.

    1915-01-01

    Lampides euchylas poliämus subspec. nova. ♂ Nur unwesentlich vom L. euchylas umbriel Fruhst. ♂ von Waigeoe differenziert, ♀ dagegen mit allen Kennzeichen einer Satellitinselrasse versehen. Flügel oberseits breiter schwarz umrahmt, so dass der weisse Diskalfleck der Vorderflügel reduziert wird. Der b

  18. Describing disease processes using a probabilistic logic of qualitative time

    NARCIS (Netherlands)

    Heijden, M. van der; Lucas, P.J.F.

    2013-01-01

    BACKGROUND: Clinical knowledge about progress of diseases is characterised by temporal information as well as uncertainty. However, precise timing information is often unavailable in medicine. In previous research this problem has been tackled using Allen's qualitative algebra of time, which, despit

  19. Functional analysis and functional communication training in individuals with Angelman syndrome

    NARCIS (Netherlands)

    Radstaake, M.; Didden, H.C.M.; Oliver, C.; Allen, D.; Curfs, L.M.G

    2012-01-01

    Objective: To assess the functions of challenging behaviour in four children with Angelman syndrome (AS) and to study the effects of functional communication training (FCT) with precursor-based prompting. This study builds on and extends the study of Allen et al. Method: Experimental functional anal

  20. Unemployment in a Prosperous Economy. A Report of the Princeton Manpower Symposium (May 13-14, 1965).

    Science.gov (United States)

    Bowen, William G., Ed.; Harbison, Frederick H., Ed.

    The papers in this volume deal with the causes, cures, and magnitude of unemployment. Musgrave, Killingsworth, and Okun discuss the opposing structuralist and deficient demand theories of unemployment. Garth Mangum, Curtis Allen, William Caples and Alice Rivlin offer their experience concerning the role of government and industry in curing…

  1. スズメダイ科魚類Chromis analis ヒマワリスズメダイ(新称)とC. albicaudaコガネスズメダイ の日本における記録と標準和名

    OpenAIRE

    岩坪, 洸樹; 本村, 浩之; イワツボ, ヒロキ; モトムラ, ヒロユキ; IWATSUBO, Hiroki; MOTOMURA, Hiroyuki

    2010-01-01

    Chromis analis (Cuvier in Cuvier & Valenciennes,1830) and C. albicauda Allen & Erdmann,2009 (Perciformes: Pomacentridae) were confirmed to be distributed in Japanese waters on the basis of collected specimens and underwater photographs. Morphological comparisons of these two species were made, with assessments of standard Japanese names for the two."Himawari-suzumedai"is herein proposed for C. analis as the standard Japanese name.

  2. Building Your Vocabulary

    Institute of Scientific and Technical Information of China (English)

    ScottThornbury

    2004-01-01

    “I'm not 100% convinced that memorizing the dictionary is the best way of improving your vocabulary,” says the character played by Hugh Grant in Woody Allen's film Small Time Crooks.Yet why not?Ifyou could memorize the dictionary-or even

  3. Teacher Retention and Satisfaction with a Servant Leader as Principal

    Science.gov (United States)

    Shaw, Jimmy; Newton, Jodi

    2014-01-01

    If the most precious product developed in education is the student, then our most prized commodity should be the classroom teacher. According to numerous studies (Allen, Pianta, Gregory, Mikami, & Lun, 2011; Clotfelter, Ladd, & Vigdor, 2010; Darling-Hammond, 2000), the greatest influence on a student's achievement is the classroom…

  4. 78 FR 66952 - Certain Point-to-Point Network Communication Devices and Products Containing the Same Notice of...

    Science.gov (United States)

    2013-11-07

    ... COMMISSION Certain Point-to-Point Network Communication Devices and Products Containing the Same Notice of... Straight Path IP Group, Inc., of Glen Allen, Virginia (``Straight Path''). 78 FR 55096 (Sept. 9, 2013). The..., California (``SCEA Inc.'') and Sony Ericsson Mobile Communications (USA) Inc. of Atlanta, Georgia...

  5. 《午夜巴黎》

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    This film is directed by U.S. film director Woody Allen It is a romantic comedy that follows a family travelling to the city for business. The party includes a young engaged(订婚的)couple that has their lives transformed(改变) throughout the journey.

  6. Edgar Allan Poe: a case description of the Marfan syndrome in an obscure short story.

    Science.gov (United States)

    Battle, Robert W

    2011-07-01

    In the obscure short story “A Tale of the Ragged Mountains,” Edgar Allen Poe meticulously described a character with features remarkably consistent with the Marfan syndrome. This description appeared in fiction >50 years before the celebrated index description in the published medical research by Professor Antoine Marfan in Paris in 1896.

  7. Management process invaded Ames as the Center shifted from NACA to NASA oversight. Ames constructed

    Science.gov (United States)

    1968-01-01

    Management process invaded Ames as the Center shifted from NACA to NASA oversight. Ames constructed a review room in its headquarters building where, in the graphical style that prevailed in the 1960's, Ames leadership could review progress against schedule, budget and performance measures. Shown, in October 1965 is Merrill Mead chief of Ames' program and resources office. (for H Julian Allen Retirement album)

  8. Revision Knee Surgery

    Medline Plus

    Full Text Available ... and across the table from me, Allen Tiarina [PH], Angie Weems [PH], and to my right, Roya Royo [PH]. Elise Bond Is our circulator. If we can ... that I do, is something that Chip Randalwatt [PH] taught me, was to pressurize the cement with ...

  9. Enrollment in Distance Education Courses, by State: Fall 2012. Web Tables. NCES 2014-023

    Science.gov (United States)

    National Center for Education Statistics, 2014

    2014-01-01

    Postsecondary enrollment in distance education courses, particularly those offered online, has rapidly increased in recent years (Allen and Seaman 2013). Traditionally, distance education offerings and enrollment levels have varied across different types of institutions. For example, researchers have found that undergraduate enrollment in at least…

  10. Just-in-Time Teaching: A Tool for Enhancing Student Engagement in Advanced Foreign Language Learning

    Science.gov (United States)

    Abreu, Laurel; Knouse, Stephanie

    2014-01-01

    Scholars have indicated a need for further research on effective pedagogical strategies designed for advanced foreign language courses in the postsecondary setting, especially in light of decreased enrollments at this level and the elimination of foreign language programs altogether in some institutions (Paesani & Allen, 2012). This article…

  11. Cultural Competence Integration in the Nursing Curriculum

    Science.gov (United States)

    Stegman, Boniface C.

    2013-01-01

    With an increasingly diverse population, it is important to ensure that graduates of nursing programs are able to deliver culturally competent care (Krainovich-Miller et al., 2008; Allen, 2010). This study was undertaken to address this call to include cultural competence integration into nursing curriculum. The purpose of this study was to…

  12. 75 FR 62112 - Notice of Availability of a Broad Spectrum of Patents for Exclusive, Partially Exclusive, or Non...

    Science.gov (United States)

    2010-10-07

    ... antenna. Allen 7,629,080 Electrode materials for electrochemical cells. Hill 7,631,567 Systems and methods... Methods for detecting and classifying loads on AC lines. Jiang 7,695,601 Electrochemical test apparatus... reduced noise. Meyers 7,805,079 Free-space quantum communications process operative absent line-of-...

  13. 76 FR 66361 - Quarterly Publication of Individuals, Who Have Chosen To Expatriate, as Required by Section 6039G

    Science.gov (United States)

    2011-10-26

    ... AMRINE DOUGLAS SCOTT ANDREWS PHILIP NEWTON AOKI HISAE ARP WILLIAM FRED ARYA JAI ARYA ROHINI ASHKENAZY... LIZA MD JAFFER OMER JAGGI MCCOY ISABELLE MARY JARDINE KATHERINE ALLEN JOHNSON ANTHONY W JOHNSON RICHARD... JEROME VOSSEN EMILY SUZANNE WAIBEL SIGOURNEY WALKER DOUGLAS GORDON WALLEY AMANDA CLARE WALTER FELIX...

  14. Sparking Student Synapses, Grades 9-12: Think Critically and Accelerate Learning

    Science.gov (United States)

    Allen, Rich; Scozzi, Nigel

    2011-01-01

    Today's students must be more than good test takers. They must be able to collaborate, innovate, and think critically to solve real-world problems. As content demands increase, how can teachers make time to teach these advanced skills? "Sparking Student Synapses, Grades 9-12" describes how master teacher Nigel Scozzi used Rich Allen's Green Light…

  15. 77 FR 67345 - Final Environmental Impact Statement/Environmental Impact Report (EIS/EIR) for the Clearwater...

    Science.gov (United States)

    2012-11-09

    .... Army Corps of Engineers, Department of the Army. ACTION: Notice of availability. SUMMARY: The U.S. Army... States, and the transport of dredged material for ocean disposal. These activities would require.... Allen, U.S. Army Corps of Engineers, Los Angeles District, Regulatory Division, Ventura Field...

  16. Heavy mineral distribution in the beaches of Nagapattinam District, Tamilnadu, India

    Digital Repository Service at National Institute of Oceanography (India)

    Angusamy, N.; Manickaraj, D.S.; Chandrasekaran, R.; Chandrasekar, N.; Loveson, V.J.; Gujar, A.R.; Rajamanickam, G.V.

    (1962). Results and Discussion For the present study, based on beach profiles, two stations showing accretionary trend and another one showing an erosional trend are considered for detailed heavy mineral studies. In Dec.2003, Chinnankudi LT.... Milner, I., 1962. Sedimentary Petrography – London: George Allen & Unwin Ltd. ...

  17. Ordering kinetics in model systems with inhibited interfacial adsorption

    DEFF Research Database (Denmark)

    Willart, J.-F.; Mouritsen, Ole G.; Naudts, J.;

    1992-01-01

    , of the algebraic growth law, R(t)∼Atn, whereas the growth exponent, n, remains close to the value n=1/2 predicted by the classical Lifshitz-Allen-Cahn growth law for systems with nonconserved order parameter. At very low temperatures there is, however, an effective crossover to a much slower algebraic growth...

  18. 75 FR 46938 - Ocean Transportation Intermediary License Applicants

    Science.gov (United States)

    2010-08-04

    ... From the Federal Register Online via the Government Publishing Office FEDERAL MARITIME COMMISSION..., Manager, Application Type: New NVO & OFF License. Duke System Logistics Inc. (NVO & OFF), 18645 E. Gale.... Gina Marie Cianelli dba Global Bookings (OFF), 261 Jerry Allen Ridge, Dallas, GA 30132, Officer: Gina...

  19. Mol-Gastronomie Granulare Fleischgerichte und molekulares Kleben

    Science.gov (United States)

    Vilgis, Thomas A.

    2005-09-01

    Buletten, Fleischküchle oder Kebabs, Köstlichkeiten aus gehacktem Fleisch bestimmter Körnung, finden sich in allen Kulturen. Physikalisch ein großes Problem, denn zu Tisch dürfen diese Gebilde nicht auseinander brechen und zerfallen. Für ausreichend Bindung und Klebung muss also gesorgt werden.

  20. 78 FR 25309 - Proposal Review Panel Physics; Notice of Meeting

    Science.gov (United States)

    2013-04-30

    ... Proposal Review Panel Physics; Notice of Meeting In accordance with the Federal Advisory Committee Act (Pub... Closed. Contact Person: Jean Cottam-Allen, Program Director for Physics Frontier Center; National Science... the progress of the Center for the Physics of Living Cells, and a proposed in for supplemental...

  1. The Importance of High School Debate

    Science.gov (United States)

    Hooley, Diana

    2007-01-01

    One of the most important educational objectives of high school is to teach critical-thinking skills, and no class does this better than strategic debate. Professor Mike Allen, lead author in a definitive study on debate and critical thinking, lauded debate's promotion of critical-thinking skills. Additionally, researcher Joe Bellon discusses the…

  2. Veilig werken in een onveilige wereld: TNOspecial september

    NARCIS (Netherlands)

    Blijswijk, M. van; Frielink, S.; Hark, T. ter; Keus, M.; Korver, T.; Louwrier, N.; Nossent, S.; Nuyens, M.; Vries, S. de

    2005-01-01

    Het thema is deze keer: Veilig werken in een onveilige omgeving. De maatschappij verruwt, dus ook de omgang tussen mensen die in een organisatie samenwerken. Eén-op-één of allen-tegen-één. Hoort het erbij of kunnen we er iets aan doen?

  3. 75 FR 51666 - Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures...

    Science.gov (United States)

    2010-08-23

    ... Policies and Procedures (44 FR 11034; February 26, 1979); and (3) does not warrant preparation of a... 6, 2010. John M. Allen, Director, Flight Standards Service. Adoption of the Amendment 0 Accordingly... 1. 23-Sep-10 MA......... Boston Gen Edward 0/5074 7/15/10 RNAV (GPS) Rwy Lawrence Logan 27,...

  4. Foundational Best Practices for Online Sexuality Education

    Science.gov (United States)

    Mckee, Ryan W.; Green, Eli R.; Hamarman, Amelia M.

    2012-01-01

    An increasing number of colleges and universities are moving toward online education (Allen & Seaman, 2011; Farnsworth & Bevis, 2006). While there are reservations about the effectiveness of teaching sexuality education online, it is essential that formally trained sexuality educators participate proactively in this paradigm shift. By embracing…

  5. Gas phase pulse radiolysis. [Reaction with hydroxyl radical

    Energy Technology Data Exchange (ETDEWEB)

    Jonah, C.D.; Andong Liu; Mulac, W.A.

    1987-01-01

    Gas phase pulse radiolysis, a technique which can be used to study many different phenomena in chemistry and physics, is discussed. As a source of small radicals, pulse radiolysis is important to the field of chemistry, particularly to combustion and atmospheric kinetics. The reactions of 1,3-butadiene, allene, ethylene and acetylene with OH are presented. 52 refs., 1 fig., 1 tab.

  6. Ben Jonson: A Collection of Critical Essays. Twentieth Century Views Series.

    Science.gov (United States)

    Barish, Jonas A., Ed.

    One of a series of works aimed at presenting contemporary critical opinion on major authors, this collection includes essays by Jonas A. Barish, T. S. Eliot, L. C. Knights, Harry Levin, Edmund Wilson, Arthur Sale, C. H. Herford, Paul Goodman, Edward B. Partridge, Ray L. Heffner, Jr., Joseph Allen Bryant, Jr., and Dolora Cunningham--all dealing…

  7. T. S. Eliot: A Collection of Critical Essays. Twentieth Century Views Series.

    Science.gov (United States)

    Kenner, Hugh, Ed.

    One of a series of works aimed at presenting contemporary critical opinion on major authors, this collection includes essays by Arthur Mizener, Wyndham Lewis, Hugh Kenner, R. P. Blackmur, Elizabeth Sewell, S. Musgrove, George L. K. Morris, F. R. Leavis, D. W. Harding, Allen Tate, Ezra Pound, William Empson, John Peter, Denis Donoghue, and Donald…

  8. Tangled Narratives and Wicked Problems: A Complex Case of Positioning and Politics in a Diverse School Community

    Science.gov (United States)

    Nguyen, Thu Suong Thi; Scribner, Samantha M. Paredes; Crow, Gary M.

    2012-01-01

    The case of Allen Elementary School presents tangled narratives and wicked problems describing the multidimensionality of school community work. Using multiple converging and diverging vignettes, the case points to the distinctiveness of individual experience in schools; the ways institutionalized organizational narratives become cultural…

  9. A Close Look at Stanford v. Kentucky.

    Science.gov (United States)

    Update on Law-Related Education, 2000

    2000-01-01

    Discusses whether the imposition of capital punishment on an individual for a crime committed as a juvenile constitutes cruel and unusual punishment under the Eighth Amendment of the U.S. Constitution. Explores the crimes of Kevin Stanford and David Allen who were 16 and 17 respectively when they each committed murder. (CMK)

  10. Sunnyvale Marine Climate Deep Retrofit

    Energy Technology Data Exchange (ETDEWEB)

    German, A. [Alliance for Residential Building Innovation (ARBI), Davis, CA (United States); Siddiqui, A. [Alliance for Residential Building Innovation (ARBI), Davis, CA (United States); Dakin, B. [Alliance for Residential Building Innovation (ARBI), Davis, CA (United States)

    2014-11-01

    The Alliance for Residential Building Innovation (ARBI) and Allen Gilliland of One Sky Homes collaborated on a marine climate retrofit project designed to meet both Passive House (PH) and Building America program standards. The scope included sealing, installing wall, roof and floor insulation (previously lacking), replacing windows, upgrading the heating and cooling system, and installing mechanical ventilation.

  11. Sunnyvale Marine Climate Deep Retrofit

    Energy Technology Data Exchange (ETDEWEB)

    German, A.; Siddiqui, A.; Dakin, B.

    2014-11-01

    The Alliance for Residential Building Innovation (ARBI) and Allen Gilliland of One Sky Homes collaborated on a marine climate retrofit project designed to meet both Passive House (PH) and Building America (BA) program standards. The scope included sealing, installing wall, roof and floor insulation (previously lacking), replacing windows, upgrading the heating and cooling system, and installing.

  12. Mathematizing: An Emergent Math Curriculum Approach for Young Children

    Science.gov (United States)

    Rosales, Allen C.

    2015-01-01

    Based on years of research with early childhood teachers, author Allen Rosales provides an approach to create an emergent math curriculum that integrates children's interests with math concepts. The mathematizing approach is different from traditional math curriculums, as it immerses children in a process that is designed to develop their…

  13. Talking to Your Doctor

    Medline Plus

    Full Text Available ... to Your Doctor Science Education Resources Community Resources Publications List More » Search Health Topics Quick Links MedlinePlus ... Español More Information For more information about this publication, contact Dr. Marin Allen . This page last reviewed ...

  14. Diet of spotted bats (Euderma maculatum) in Arizona as indicated by fecal analysis and stable isotopes

    Science.gov (United States)

    We assessed diet of spotted bats (Euderma maculatum (J.A. Allen, 1891)) by visual analysis of bat feces and stable carbon (δ13C) and nitrogen (δ15N) isotope analysis of bat feces, wing, hair, and insect prey. We collected 33 fecal samples from spotted bats and trapped 3755 insect...

  15. State-of-the-Art bewaarsysteem tulpenbollen : Resultaten 2011

    NARCIS (Netherlands)

    Wildschut, J.; Dam, van M.F.N.; Kok, M.; Gulik, van der T.

    2012-01-01

    Resultaten van het op 5e jaar State-of-Art bewaren van tulpenbollen op 12 bedrijven waarvan de energie- en achtergrondgegevens verzameld zijn. De 12 bedrijven hadden allen dit jaar een zeer laag berekend percentage zure bollen (0.06 % tot maximaal 1,3%). Door geheel of gedeeltelijk de ventilatie op

  16. Future of Online Education in Crisis: A Call to Action

    Science.gov (United States)

    Nash, Julie Ann

    2015-01-01

    Online education is growing rapidly and there is little doubt that it will continue to expand until it one day encompasses the majority of higher education course offerings. Higher education leaders agree that online education will continue to grow even in the face of a slight recent decline (Allen & Seaman, 2013). As the rise of online…

  17. On a Method of Statistical Business-Cycle Research; a reply (to Keynes)

    NARCIS (Netherlands)

    J. Tinbergen (Jan)

    1940-01-01

    textabstractAlso published in: A.H. Hansen and R.V. Clemence (Eds), Readings on Business Cycles and National Income, Allen & Unwin, London, 1953, pp. 341-354, in: Adrian C. Darnell (Ed), The History of Econometrics Vol. 2, Edward Elgar, Aldershot, 1994, pp. 214-227 and in: Dale J. Poirier (Ed), The

  18. Poetry Goes 2.0

    Science.gov (United States)

    Hamilton, Buffy

    2009-01-01

    Generating excitement about poetry is often a challenge with high school patrons. While some teens have discovered the cathartic and aesthetic qualities of poetry, many have never experienced the joy of poetry. A course the author took in 2003 at The University of Georgia with Dr. JoBeth Allen, "Poetry in the Classroom," ignited a passion for…

  19. Understanding the Advising Learning Process Using Learning Taxonomies

    Science.gov (United States)

    Muehleck, Jeanette K.; Smith, Cathleen L.; Allen, Janine M.

    2014-01-01

    To better understand the learning that transpires in advising, we used Anderson et al.'s (2001) revision of Bloom's (1956) taxonomy and Krathwohl, Bloom, and Masia's (1964) affective taxonomy to analyze eight student-reported advising outcomes from Smith and Allen (2014). Using the cognitive processes and knowledge domains of Anderson et al.'s…

  20. Styling like Monet

    Science.gov (United States)

    Lambert, Phyllis Gilchrist

    2010-01-01

    Coming up with new projects for students is easy, but finding projects the majority of the children enjoy and do well with is quite another matter. In this article, the author describes how students made an advanced form of finger painting project. This project was inspired by Allen Montague, an artist from North Carolina, who was demonstrating…

  1. 2x Ben Affleck / Laurence Lumiere

    Index Scriptorium Estoniae

    Lumiere, Laurence

    2007-01-01

    Põnevusfilm "Hollywoodland" : režissöör Allen Coulter : Ameerika Ühendriigid 2006 ja põnevuskomöödia "Äss mättasse" ("Smokin' Aces") : režissöör Joe Carnahan : Suurbritannia - Prantsusmaa - Ameerika Ühendriigid 2007. Mõlemas mängib Ben Affleck

  2. Commitment Profiles: Combinations of Organizational Commitment Forms and Job Outcomes

    Science.gov (United States)

    Wasti, S. Arzu

    2005-01-01

    Although the three-component model of organizational commitment by Meyer and Allen (1991) posits that an employee can experience the three components concurrently, previous research has been largely variable-centered, looking at the antecedents and outcomes of each component separately. Two studies explored how the three components combine to…

  3. Case Study of Three Rural Texas Superintendents as Equity Oriented Change Agents

    Science.gov (United States)

    Maxwell, Gerri Marie; Locke, Leslie Ann; Scheurich, James Joseph

    2013-01-01

    For this qualitative case study (Patton, 2003), we used narrative inquiry (Erlandson, Harris, Skipper, & Allen, 1993) and sought to analyze extended interviews and field notes based on interactions with three rural superintendents working in high-needs, public PK-12 school districts in Texas. We collected data with regard to these superintendents'…

  4. Alien Wu:A Versatile Activist

    Institute of Scientific and Technical Information of China (English)

    2009-01-01

    @@ "To promote global cooperation under the new century's trend of globalization,Asians all around the world play an important and irreplaceable role", said Allen Wu, the Chairman of the Asian American Republican National Federation, in his speech when attended "2007 Asian Pacific International Cooperation Conference among CEOs, Governors, and Mayors"and "Global Outsourcing Conference" held in Guangzhou and Tianjin, China.

  5. ALT-C 95: Changing Education, Changing Technology. Conference Abstracts of the Association for Learning Technology Conference (2nd, Milton Keynes, England, United Kingdom, September 11-13, 1995).

    Science.gov (United States)

    Hawkridge, David, Ed.

    This program for the 1995 Association for Learning Technology Conference summarizes the presentations of the discussions, demonstrations, workshops, and poster sessions. Abstracts of the following papers presented at the conference are included: "New Structures for Learning" (Patrick Allen & Kate Sankey); "Multiple System Conferencing" (Susan…

  6. Problem Solvers: Solutions--Playing Basketball

    Science.gov (United States)

    Smith, Jeffrey

    2014-01-01

    In this article, fourth grade Upper Allen Elementary School (Mechanicsburg, Pennsylvania) teacher Jeffrey Smith describes his exploration of the Playing Basketball activity. Herein he describes how he found the problem to be an effective way to review concepts associated with the measurement of elapsed time with his students. Additionally, it…

  7. Normative Praxis: konstitutions- und konstruktionsanalytische Grundlagen

    NARCIS (Netherlands)

    Stegmaier, Peter; Raab, Jürgen; et al, .

    2008-01-01

    Talcott Parsons gründet seine funktionale Handlungstheorie in Anschluss an Émile Durkheim auf die Annahme, dass kulturelle Werte und Normen ein internalisiertes System von Symbolen bilden, das von allen Gesellschaftsmitgliedern geteilt wird und ebenso den Verlauf wie den Sinn und die Legitimation vo

  8. Huvitav läbikukkumine / Mari Laaniste

    Index Scriptorium Estoniae

    Laaniste, Mari, 1977-

    2006-01-01

    Allan Moore'i ja Eddie Campbelli koomiksil põhinev õuduspõnevik "Otse põrgust" ("From Hell") : režissöörid Allen ja Albert Hughes, peaosas Johnny Depp : Ameerika Ühendriigid - Suurbritannia 2001. Pikemalt A. Moore'ist (s. 1953)

  9. Enam-vähem otse põrgust / Mari Laaniste

    Index Scriptorium Estoniae

    Laaniste, Mari, 1977-

    2002-01-01

    Mängufilm "Põrgust" ("From Hell") : režissöörid Albert ja Allen Hughes : Ameerika Ühendriigid - Tšehhi Vabariik 2001. Analüüsitud filmi lähtekohaks olnud Alan Moore'i 1988. a. ilmunud raamatu, selle varasemate eeskujude ja filmi vahekorda

  10. Adding Value: Open Online Learning and the MBA

    Science.gov (United States)

    Fitzgerald, Rachel; Anderson, Maggie; Thompson, Ross

    2015-01-01

    Evidence suggests that MOOCs are being used as a strategic tool to explore alternative models of course delivery (Allen & Seaman, 2013) and this paper shares insight into an example of such innovation for Business School Education. Gateway MBA draws on examples of open learning worldwide to create a MOOC to extend the MBA distance learning…

  11. Flamingozucht in Basel

    NARCIS (Netherlands)

    Lang, Ernst M.

    1961-01-01

    Wie fast jeder Zoologische Garten in Europa hält auch der Basler Tiergarten eine Flamingo-Schar. Als erster bunter Gruss steht diese prächtige Vogelgruppe gleich beim Eingang und jeder Besucher bleibt staunend vor diesen grotesken Vögeln stehen. Bis vor kurzem erfolgte aber, wie in allen andern Gärt

  12. Approximation and relaxation of perimeter in the Wiener space

    CERN Document Server

    Goldman, Michael

    2011-01-01

    We characterize the relaxation of the perimeter in an infinite dimensional Wiener space, with respect to the weak L^2-topology. We also show that the rescaled Allen-Cahn functionals approximate this relaxed functional in the sense of Gamma-convergence.

  13. Temperature dependence of band gaps in Si and Ge in the quasi-ion model

    Science.gov (United States)

    Klenner, M.; Falter, C.; Ludwig, W.

    We have calculated the temperature dependence of the direct and indirect band gaps in silicon and germanium. The electron-phonon potential as well as the phonon frequencies and eigenvectors are calculated consistently within the rigid quasi-ion model. Comparison is made with experiment and with the theoretical results of Allen and Cardona and Lautenschlager et al.

  14. Writing and Publishing: The Ultimate Teen Guide. It Happened to Me #27

    Science.gov (United States)

    Schwartz, Tina P.

    2010-01-01

    Edgar Allen Poe, Langston Hughes, Louisa May Alcott, and Stephen King are just a handful of famous authors who began their publishing careers in their teens. Many young adults would like to write and publish but few know where to begin. While there are many books on how to write and how to get published, none are written specifically for teens.…

  15. 12星座最爱的书籍%The Signs' Favorite Books

    Institute of Scientific and Technical Information of China (English)

    落音倾城

    2008-01-01

    @@ Aries白羊座 The rushing Ram will want a quick and entertaining read that will give them a rush of adrenalin.Short stories and thrillers suit the turbo-charged Aries.Favorite books could include Edgar Allen Poe's stories,and some of Stephen King's shorter works.

  16. 77 FR 29447 - Qualification of Drivers; Exemption Applications; Vision

    Science.gov (United States)

    2012-05-17

    ... Federal Register on January 17, 2008 (73 FR 3316), or you may visit http://edocket.access.gpo.gov/2008/pdf.... Allen (OR) James C. Askin (FL) Ernie E. Black (NC) Gary O. Brady (WV) Stephen H. Goldcamp (OH) Hazel L. Hopkins, Jr. (MD) Wai F. King (IL) Dennis E. Krone (IL) Richard J. McKenzie, Jr. (MD) Christopher...

  17. Kuus turundusüksuse tüüpi / Edward Landry, Andrew Tipping, Brodie Dixon

    Index Scriptorium Estoniae

    Landry, Edward

    2005-01-01

    Konsultatsioonifirma Booz Allen Hamilton ja Association of National Advertisers välja töötatud turundusüksuste tüüpidest ja asjaoludest, mida peaks arvesse võtma firma olemasoleva turundusüksuse välja selgitamiseks

  18. Exploring the Sensitivity of Horn's Parallel Analysis to the Distributional Form of Random Data

    Science.gov (United States)

    Dinno, Alexis

    2009-01-01

    Horn's parallel analysis (PA) is the method of consensus in the literature on empirical methods for deciding how many components/factors to retain. Different authors have proposed various implementations of PA. Horn's seminal 1965 article, a 1996 article by Thompson and Daniel, and a 2004 article by Hayton, Allen, and Scarpello all make assertions…

  19. The Beats as Cultural Others/Exotics in Recent Memoirs by Exile Poets

    DEFF Research Database (Denmark)

    Sørensen, Bent

    -conformism and jubilant celebration of difference and otherness which permeates the writings of poets such as Allen Ginsberg, and which resonated with dissident poets often oppressed by totalitarian regimes. Authors such as Andrei Codrescu and Charles Simic have published memoirs and poems detailing their fascination...

  20. Bioenergy markets in a climate constrained world

    OpenAIRE

    Klein, David

    2015-01-01

    Um gefährlichen Klimawandel zu vermeiden, werden starke Emissionsreduktionen im Energie- und Landnutzungs-Sektor benötigt. Zwischen verschiedenen Dekarbonisierungsoptionen sticht Bioenergie hervor, da sie zwei besondere Wege der Emissionsreduktion bietet. Erstens stellt sie wegen ihrer vielseitigen Einsetzbarkeit eine emissionsarme Alternative zu fossilen Brennstoffen in allen Energiesektoren dar. Zweitens kann sie aufgrund ihres Kohlenstoffgehalts in Kombination mit Kohlenstoffabscheidung (C...

  1. Charles AlIen Reed, 1912·2000

    OpenAIRE

    Turnball, William D.; Barbara Becker

    2002-01-01

    Some researchers are true "Renaissance People". Their interests, skills and training represent an enormous breadth,and their pursuits exemplify the best of interdisciplinary efforts. Archaeology, anthropology, the University of Illinois at Chicago, and The Field Museum recently lost just such a fine scholar, dedicated investigator and loyal friend - Charles Allen Reed 11.

  2. Aneurisma idiopático da artéria radial na região da tabaqueira anatômica: relato de caso Idiopathic radial aneurysm in the anatomical snuffbox: case report

    Directory of Open Access Journals (Sweden)

    Aline Cristine Barbosa Santos

    2008-12-01

    Full Text Available Paciente do sexo feminino, 73 anos, negra, lavadeira/lavradora, hipertensa, apresentava tumor pulsátil de 1,5 x 0,5 cm em região de tabaqueira anatômica da mão direita há 10 anos, de crescimento lento e progressivo, associado a dor local. Não apresentava alterações neurológicas, cianose de extremidades, sinais de infecção ou trauma local. O teste de Allen resultou negativo, e o Eco-Doppler colorido demonstrou aneurisma de artéria radial na tabaqueira anatômica. Procedeu-se a aneurismectomia de artéria radial na tabaqueira anatômica com ligadura dupla proximal e distal. Houve boa evolução operatória, sem sinais de isquemia digital. O exame anatomopatológico confirmou diagnóstico de parede arterial (aneurisma verdadeiro. O paciente encontra-se em acompanhamento ambulatorial, no momento assintomático. Não há definição de quais aneurismas distais à artéria axilar possam ser acompanhados sem conduta cirúrgica. Como a paciente, neste caso, apresentava teste de Allen normal e dor local, optou-se pela ligadura proximal e distal, com bom resultado.We report a case of a 73-year-old female, laundress/farmer, hypertensive, with symptomatic pulsatile lump of 1.5 x 0.5 cm at the right anatomical snuffbox of the right hand, with slow and progressive growth and local pain in the past 10 years. The patient presented no neurological symptoms, cyanosis, infection or local trauma history. Allen"s test was negative, and color Doppler ultrasound confirmed presence of radial artery aneurysm in the anatomical snuffbox. Surgical treatment via aneurysmectomy of radial artery in the snuffbox with proximal and distal ligation was carried out. She had good operative course with no signs of digital ischemia. Histopathological test confirmed diagnosis of arterial wall (true aneurysm. She remains asymptomatic in outpatient follow-up. There is no definition as to which aneurysms distal to the axillary artery could be followed without a surgical

  3. The Radiation Environment for the LISA/Laser Interferometry Space Antenna

    Science.gov (United States)

    Barth, Janet L.; Xapsos, Michael; Poivey, Christian

    2005-01-01

    The purpose of this document is to define the radiation environment for the evaluation of degradation due to total ionizing and non-ionizing dose and of single event effects (SEES) for the Laser Interferometry Space Antenna (LISA) instruments and spacecraft. The analysis took into account the radiation exposure for the nominal five-year mission at 20 degrees behind Earth's orbit of the sun, at 1 AU (astronomical unit) and assumes a launch date in 2014. The transfer trajectory out to final orbit has not yet been defined, therefore, this evaluation does not include the impact of passing through the Van Allen belts. Generally, transfer trajectories do not contribute significantly to degradation effects; however, single event effects and deep dielectric charging effects must be taken into consideration especially if critical maneuvers are planned during the van Allen belt passes.

  4. Rapid flattening of butterfly pitch angle distributions of radiation belt electrons by whistler-mode chorus

    Science.gov (United States)

    Yang, Chang; Su, Zhenpeng; Xiao, Fuliang; Zheng, Huinan; Wang, Yuming; Wang, Shui; Spence, H. E.; Reeves, G. D.; Baker, D. N.; Blake, J. B.; Funsten, H. O.

    2016-08-01

    Van Allen radiation belt electrons exhibit complex dynamics during geomagnetically active periods. Investigation of electron pitch angle distributions (PADs) can provide important information on the dominant physical mechanisms controlling radiation belt behaviors. Here we report a storm time radiation belt event where energetic electron PADs changed from butterfly distributions to normal or flattop distributions within several hours. Van Allen Probes observations showed that the flattening of butterfly PADs was closely related to the occurrence of whistler-mode chorus waves. Two-dimensional quasi-linear STEERB simulations demonstrate that the observed chorus can resonantly accelerate the near-equatorially trapped electrons and rapidly flatten the corresponding electron butterfly PADs. These results provide a new insight on how chorus waves affect the dynamic evolution of radiation belt electrons.

  5. Hawaii Clean Energy Initiative Existing Building Energy Efficiency Analysis: November 17, 2009 - June 30, 2010

    Energy Technology Data Exchange (ETDEWEB)

    Finch, P.; Potes, A.

    2010-06-01

    In June 2009, the State of Hawaii enacted an Energy Efficiency Portfolio Standard (EEPS) with a target of 4,300 gigawatt hours (GWh) by 2030 (Hawaii 2009). Upon setting this goal, the Hawaii Clean Energy Initiative, Booz Allen Hamilton (BAH), and the National Renewable Energy Laboratory (NREL), working with select local stakeholders, partnered to execute the first key step toward attaining the EEPS goal: the creation of a high-resolution roadmap outlining key areas of potential electricity savings. This roadmap was divided into two core elements: savings from new construction and savings from existing buildings. BAH focused primarily on the existing building analysis, while NREL focused on new construction forecasting. This report presents the results of the Booz Allen Hamilton study on the existing building stock of Hawaii, along with conclusions on the key drivers of potential energy efficiency savings and on the steps necessary to attain them.

  6. Demonising the dingo: How much wild dogma is enough?

    Directory of Open Access Journals (Sweden)

    Mike LETNIC, Mathew S. CROWTHER, Christopher R. DICKMAN, Euan RITCHIE

    2011-10-01

    Full Text Available The roles that top predators play in regulating the structure and function of ecosystems have long been controversial. This is particularly the case when predators pose adverse risks for human life and/or economic interests. The critique of literature on dingoes and their ecological roles in Australia provided by Allen et al. (2011 shows that top predators remain a potentially polarising issue. In opposition to Allen et al. we argue that these widespread patterns of species’ abundances, attributed to the effects of dingoes and evident at scales ranging from the foraging behaviour of individuals through to continental scale patterns of species abundances, constitute strong support for the mesopredator release hypothesis and provide evidence that dingoes benefit biodiversity conservation by inducing community wide trophic cascades. Harnessing the positive ecological effects of dingoes while at the same time minimising their impacts on agriculture is a major socio-political challenge in Australia [Current Zoology 57 (5: 668-670].

  7. Multifrequency Compressional Magnetic Field Oscillations and Their Relation to Multiharmonic Toroidal Standing Alfvén Waves

    Science.gov (United States)

    Takahashi, K.; Waters, C. L.; Kletzing, C.; Kurth, W. S.; Smith, C. W.; Glassmeier, K. H.

    2015-12-01

    The power spectrum of the compressional component of magnetic field observed by the Van Allen Probes spacecraft near the magnetospheric equator in the dayside plasmasphere sometimes exhibits regularly spaced multiple peaks at frequencies below 50 mHz. We show by detailed analysis of events observed on two separate days in early 2014 that the frequencies change smoothly with the radial distance of the spacecraft and appear at or very near the frequencies of the odd harmonics of mutiharmonic toroidal standing Alfvén waves seen in the azimuthal component of the magnetic field. Even though the compressional component had low amplitude on one of the selected days, its spectral properties are highlighted by computing the ratio of the spectral powers of time series data obtained from spatially separated two Van Allen Probes spacecraft. The spectral similarity of the compressional and azimuthal components suggests that the compressional component contain field line resonance characteristics.

  8. Multifrequency compressional magnetic field oscillations and their relation to multiharmonic toroidal mode standing Alfvén waves

    Science.gov (United States)

    Takahashi, Kazue; Waters, Colin; Glassmeier, Karl-Heinz; Kletzing, Craig A.; Kurth, William S.; Smith, Charles W.

    2015-12-01

    The power spectrum of the compressional component of magnetic fields observed by the Van Allen Probes spacecraft near the magnetospheric equator in the dayside plasmasphere sometimes exhibits regularly spaced multiple peaks at frequencies below 50 mHz. We show by detailed analysis of events observed on two separate days in early 2014 that the frequencies change smoothly with the radial distance of the spacecraft and appear at or very near the frequencies of the odd harmonics of mutiharmonic toroidal mode standing Alfvén waves seen in the azimuthal component of the magnetic field. Even though the compressional component had a low amplitude on one of the selected days, its spectral properties are highlighted by computing the ratio of the spectral powers of time series data obtained from two spatially separated Van Allen Probes spacecraft. The spectral similarity of the compressional and azimuthal components suggests that the compressional component contains field line resonance characteristics.

  9. Steering of hydrogen migration in hydrocarbons using intense few-cycle laser fields

    Science.gov (United States)

    Li, Hui; Kuebel, Matthias; Burger, Christian; Kling, Nora; Foerg, Benjamin; Zherebtsov, Sergey; Kling, Matthias; Kaziannis, Spyros; Siemering, Robert; de Vivie-Riedle, Regina; Stierle, Johannes; Kessel, Alexander; Betsch, Kelsie; Bergues, Boris; Trushin, Sergei; Alnaser, Ali; Azzeer, Abdallah; Ben-Itzhak, Itzik; Moshammer, Robert

    2016-05-01

    Structural rearrangements in hydrocarbons, namely acetylene, allene and toluene, are initiated by phase- and intensity-controlled few-cycle laser pulses. The momentum distributions of several ionic fragments are monitored using single-shot VMI and COLTRIMS. The results show that the hydrogen migration in these hydrocarbons can be steered by changing the CEP and the intensity of the few-cycle pulses. Quantum dynamical calculations performed on acetylene and allene show that a superposition of vibrational modes can be created by wave-form controlled few-cycle laser fields, which will result in a directionality of the hydrogen migration. This mechanism, which appears to be of general importance for such complex molecules, should also be able to explain the molecular dynamics observed in toluene.

  10. USDOE/EPRI BIOMASS COFIRING COOPERATIVE AGREEMENT

    Energy Technology Data Exchange (ETDEWEB)

    D. Tillman; E. Hughes

    1999-01-01

    During the period of October 1, 1998 through December 31, 1998, significant work was done in direct preparation for several cofiring tests. Major progress was made on several projects including cofiring at Seward (GPU Genco), Allen (TVA), and Bailly (NIPSCO). Most of the work was focused on construction activities at the Seward and Bailly Generating Stations. The conceptual design and feasibility study for gasification-based cofiring at the Allen Fossil Plant was completed. The feasibility study for cofiring at the Pirkey and Northeastern Generating Stations of Central and South West Utilities (C&SW) also was completed. This report summarizes the activities during the fourth calendar quarter in 1998--of the USDOE/EPRI Biomass Cofiring Cooperative Agreement. It focuses upon reporting the results of construction activities and related events.

  11. Crossing the Undecidability Border with Extensions of Propositional Neighborhood Logic over Natural Numbers

    DEFF Research Database (Denmark)

    Monica, Dario Della; Goranko, Valentin; Montanari, Angelo;

    2012-01-01

    Propositional Neighborhood Logic (PNL) is an interval temporal logic featuring two modalities corresponding to the relations of right and left neighborhood between two intervals on a linear order (in terms of Allen's relations, meets/ and met by). Recently, it has been shown that PNL interpreted...... over several classes of linear orders, including natural numbers, is decidable (NEXPTIME-complete) and that some of its natural extensions preserve decidability. Most notably, this is the case with PNL over natural numbers extended with a limited form of metric constraints and with the future fragment...... of PNL extended with modal operators corresponding to Allen's relations begins, begun by, and before/. This paper aims at demonstrating that PNL and its metric version MPNL, interpreted over natural numbers, are indeed very close to the border with undecidability, and even relatively weak extensions...

  12. See the Translation of English Pop Songs from the Two Versions of the Song"LDN"%从歌曲“LDN”的两个译本看英语流行歌曲的翻译

    Institute of Scientific and Technical Information of China (English)

    卢舒婕

    2013-01-01

    Pop songs, which attract more and more audiences, enrich the lives of modern people. Translating the lyrics of Pop English songs into Chinese will make easier understanding of songs for Chinese people. The article focuses on the pop song"LDN"from Lily Allen, comparing two versions of translation and then putting forward some suggestions on lyrics translation.%流行歌曲丰富了大众文化生活,为现代人所喜爱。将英文歌曲歌词翻译成汉语,有助于译语听众充分了解歌曲内涵,从而更好地欣赏歌曲。本文选取Lily Allen 的歌曲“LDN”为例,对比歌词的不同译本,从而对英语流行歌曲歌词的翻译进行思考。

  13. Effect of nutrient media on photobiological hydrogen production by Anabaena variabilis ATCC 29413

    Energy Technology Data Exchange (ETDEWEB)

    Berberoglu, Halil; Pilon, Laurent [Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering and Applied Science, University of California Los Angeles, Los Angeles, CA 90095 (United States); Jay, Jenny [Civil and Environmental Engineering Department, Henry Samueli School of Engineering and Applied Science, University of California Los Angeles, Los Angeles, CA 90095 (United States)

    2008-02-15

    This study reports a factor 5.5 increase in hydrogen production by Anabaena variabilis ATCC 29413 using Allen-Arnon medium compared with BG-11 and BG-11{sub 0} media. The results were obtained with a flat panel photobioreactor made of acrylic and operated in two stages at 30 C. Stage 1 aims at converting carbon dioxide into biomass by photosynthesis while Stage 2 aims at producing hydrogen. During Stage 1, the photobioreactor was irradiated with 65{mu}mol/m{sup 2}/s (14W/m{sup 2}) of light and sparged with a mixture of air (95% by volume) and carbon dioxide (5% by volume). During Stage 2, irradiance was increased to 150{mu}mol/m{sup 2}/s (32W/m{sup 2}) and the photobioreactor was sparged with pure argon. The parameters continuously monitored were (1) the cyanobacteria concentration, (2) the pH, (3) the dissolved oxygen concentration, (4) the nitrate and (5) the ammonia concentrations in the medium, and (6) the hydrogen concentration in the effluent gas. The three media BG-11, BG-11{sub 0}, and Allen-Arnon were tested under otherwise similar conditions. The maximum cyanobacteria concentrations during Stage 2 were 1.10 and 1.17kg drycell/m{sup 3} with BG-11 and Allen-Arnon media, respectively, while it could not exceed 0.76kg drycell/m{sup 3} with medium BG-11{sub 0}. Moreover, the heterocyst frequency was 5%, 4%, and 9% for A.variabilis grown in BG-11, BG-11{sub 0}, and Allen-Arnon media. The average specific hydrogen production rates were about 8.0 x 10{sup -5} and 7.2 x 10{sup -5}kgH{sub 2}/kgdrycell/h (1 and 0.9LH{sub 2}/kgdrycell/h at 1 atm and 30 {sup o}C) in media BG-11 and BG-11{sub 0}, respectively. In contrast, it was about 4.5 x 10{sup -4}kgH{sub 2}/kgdrycell/h (5.6LH{sub 2}/kgdrycell/h at 1 atm and 30 {sup o}C) in Allen-Arnon medium. The maximum light to hydrogen energy conversion efficiencies achieved were 0.26%, 0.16%, and 1.32% for BG-11, BG-11{sub 0}, and Allen-Arnon media, respectively. The larger heterocyst frequency, specific hydrogen production

  14. Spatial structure and temporal evolution of energetic particle injections in the inner magnetosphere during the 14 July 2013 substorm event

    CERN Document Server

    Gkioulidou, Matina; Mitchell, D G; Ukhorskiy, A Y; Reeves, G D; Turner, D L; Gjerloev, J W; Nosé, M; Koga, K; Rodriguez, J V; Lanzerotti, L J

    2016-01-01

    Recent results by the Van Allen Probes mission showed that the occurrence of energetic ion injections inside geosynchronous orbit could be very frequent throughout the main phase of a geomagnetic storm. Understanding, therefore, the formation and evolution of energetic particle injections is critical in order to quantify their effect in the inner magnetosphere. We present a case study of a substorm event that occurred during a weak storm $\\textit{ Dst }$ $\\sim$ -40nT on 14 July 2013. Van Allen Probe B, inside geosynchronous orbit, observed two energetic proton injections within 10min, with different dipolarization signatures and duration. The first one is a dispersionless, short-timescale injection pulse accompanied by a sharp dipolarization signature, while the second one is a dispersed, longer-timescale injection pulse accompanied by a gradual dipolarization signature. We combined ground magnetometer data from various stations and in situ particle and magnetic field data from multiple satellites in the inne...

  15. Anger Suppression, Interdependent Self-Construal, and Depression among Asian American and European American College Students

    OpenAIRE

    Cheung, Rebecca Y. M.; Park, Irene J. K.

    2010-01-01

    The present study tested a theoretical model of emotion regulation (Yap, Sheeber, & Allen, 2007) in a sample of Asian American and European American college students (N = 365). Specifically, the mediating role of anger suppression in the effect of temperament and family processes on depressive symptoms was tested across race and levels of interdependent self-construal (a culturally based self orientation emphasizing connectedness with others). Next, the moderation of the suppression—depressio...

  16. Star tracker and vision systems performance in a high radiation environment

    OpenAIRE

    Jørgensen, John Leif; Riis, Troels; Betto, Maurizio

    1999-01-01

    A part of the payload of the second Ariane 5 prototype vehicle to be launched by Arianespace, was a small technology demonstration satellite. On October 30th, 1997, this test satellite, dubbed Teamsat, was launched into Geostationary Transfer Orbit and would as such pass the Van Allen radiation belts twice per orbit. One of the experiments onboard Teamsat was the so-called Autonomous Vision System (AVS). The AVS instrument is a fully autonomous star tracker with several advanced features for ...

  17. Tired of Reading

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    China has a long tradition of highlighting reading for children, but many of today's youngsters seem not to have developed a love of books Shoved into Cheng Qidi's room is a bulky bookcase, all three of its shelves full of books sorted by their subjects. Dozens of books occupy most of the desk that's beside the bookcase, while on the wall is a poster of U.S. basketball star Allen Iverson.

  18. Wie professionell sind Schweizer Audit Committees? Eine Studie zeigt, dass nur in jedem zweiten Audit Committee von Verwaltungsräten ein Finanzexperte sitzt

    OpenAIRE

    Leibfried, Peter; Roffler, Mario

    2008-01-01

    Die Mitglieder des Audit Committee eines Verwaltungsrats (VR) müssen Jahresrechnungen lesen und verstehen und mit dem Chief Financial Officer auf gleicher Augenhöhe diskutieren können. Eine Untersuchung der Universität St. Gallen unter kotierten Unternehmen hat indes gezeigt, dass diese Voraussetzung bei weitem nicht in allen Schweizer Gesellschaften erfüllt ist. Die Autoren werfen die Frage auf, ob der VR seine Kontrollfunktion so überhaupt angemessen wahrnehmen kann.

  19. Wem gehört die Evolution? Zur Frage der Nutzung genetischen Materials

    OpenAIRE

    Uhl, Matthias

    1999-01-01

    Die vorliegende Arbeit stellt eine Analyse der Diskussion um Genpatente dar. Der zentrale und vor allen Dingen strittige Punkt der untersuchten Auseinandersetzung ist eine Frage der praktischen Ethik: Soll es Patente auf gentechnologische Entwicklungen geben und, wenn ja, in welchem Ausmaß? Ziel dieser philosophisch ausgerichteten Auseinandersetzung mit dem Thema Patente und Gentechnologie ist eine Klärung der verwendeten Begriffe und Argumente. Inhaltliches Vorgehen: Im ersten Teil...

  20. NESCent Annual Report, Year 6

    OpenAIRE

    Rodrigo, Allen; Vision, Todd; Wiegmann, Brian; Alberts, Susan

    2010-01-01

    Executive Summary Center‐wide Developments and Administration We began Year 6 with a new Director (Allen Rodrigo) and a new Associate Director of Science (Susan Alberts). To coincide with the renewal in funding, we felt that it was appropriate to re‐evaluate NESCent’s mission. The result was a new mission statement that takes account of NESCent’s evolving scope and areas of strategic focus: NESCent promotes the synthesis of information, concepts and knowledge to addre...

  1. The Electric Field and Waves Instruments on the Radiation Belt Storm Probes Mission

    OpenAIRE

    Wygant, J. R.; Bonnell, J. W.; Goetz, K.; Ergun, R. E.; F. S. Mozer; Bale, S.D.; M. Ludlam; Turin, P.; Harvey, P. R.; Hochmann, R.; Harps, K.; Dalton, G.; McCauley, J.; Rachelson, W.; Gordon, D.

    2013-01-01

    The Electric Fields and Waves (EFW) Instruments on the two Radiation Belt Storm Probe (RBSP) spacecraft (recently renamed the Van Allen Probes) are designed to measure three dimensional quasi-static and low frequency electric fields and waves associated with the major mechanisms responsible for the acceleration of energetic charged particles in the inner magnetosphere of the Earth. For this measurement, the instrument uses two pairs of spherical double probe sensors at the ends of orthogonal ...

  2. Detsibill : Haige uudishimu. White label : Uma kiilsed mihed. Kuula / DJ Pickney Tiger

    Index Scriptorium Estoniae

    DJ Pickney Tiger, pseud., 1970-

    2006-01-01

    "Kollasest" ajakirjandusest. Heliplaadist Ilves, Pulk & Rahman "Murõt ei olõ". Heliplaatidest: Ro:Toro "Estonian Bagpipe", Tool "10.000days", Rise Against "The sufferer and the witness", "Hi Top Sampler: Fresh from Spain, Spain is Different. Vol 2", Lily Allen "Alright, Still", Stupid F "Nostalgilised helid", Los De Abajo "Los de Abajo vs. The Lunatics", Nuyorican Soul "Nuyorican Soul", Zutons "Tired of Hanging Araound", Razorlight "Razorlight", Ministry Of Sound "Dance Nation"

  3. Biotechnologie und Internationalisierung - Ergebnisse der Online-Befragung

    OpenAIRE

    Kranich, Jan

    2007-01-01

    Nach einer mehrjährigen Konsolidierungsphase konnte die deutsche Biotechnologiebranche zunehmend Marktanteile im internationalen Wettberwerb gewinnen. Derzeitig werden zwei Entwicklungen innerhalb der Branche intensiv diskutiert: die Osterweiterung der Europäischen Union und die zunehmende wirtschaftlich-technologische Bedeutung der Schwellenländer, allen voran Indien und China. Hierbei sind folgende Fragestellungen von besonderem Interesse: Ist mit der einer Verstärkung des internationalen B...

  4. Harmonic hopping, and both punctuated and gradual evolution of acoustic characters in Selasphorus hummingbird tail-feathers.

    Directory of Open Access Journals (Sweden)

    Christopher James Clark

    Full Text Available Models of character evolution often assume a single mode of evolutionary change, such as continuous, or discrete. Here I provide an example in which a character exhibits both types of change. Hummingbirds in the genus Selasphorus produce sound with fluttering tail-feathers during courtship. The ancestral character state within Selasphorus is production of sound with an inner tail-feather, R2, in which the sound usually evolves gradually. Calliope and Allen's Hummingbirds have evolved autapomorphic acoustic mechanisms that involve feather-feather interactions. I develop a source-filter model of these interactions. The 'source' comprises feather(s that are both necessary and sufficient for sound production, and are aerodynamically coupled to neighboring feathers, which act as filters. Filters are unnecessary or insufficient for sound production, but may evolve to become sources. Allen's Hummingbird has evolved to produce sound with two sources, one with feather R3, another frequency-modulated sound with R4, and their interaction frequencies. Allen's R2 retains the ancestral character state, a ∼1 kHz "ghost" fundamental frequency masked by R3, which is revealed when R3 is experimentally removed. In the ancestor to Allen's Hummingbird, the dominant frequency has 'hopped' to the second harmonic without passing through intermediate frequencies. This demonstrates that although the fundamental frequency of a communication sound may usually evolve gradually, occasional jumps from one character state to another can occur in a discrete fashion. Accordingly, mapping acoustic characters on a phylogeny may produce misleading results if the physical mechanism of production is not known.

  5. Treatment of Travel Expenses by Golf Course Patrons: Sunk or Bundled Costs and the First and Third Laws of Demand

    OpenAIRE

    Matt, Brown; Daniel, Rascher; Chad, McEvoy; Mark, Nagel

    2007-01-01

    To attract golf patrons, sport managers must understand consumption patterns of the golfer. Importantly, the treatment of travel costs must be understood. According to the Alchian-Allen (1964) theorem, golfers treat travel costs as bundled costs (third law of economic demand) whereas classical consumer theory indicates that golfers treat travel costs as sunk costs (first law of economic demand). The purpose of this study was to determine if golf patrons treated travel costs as sunk costs o...

  6. Evidence-Based Theory of Market Manipulation And Application: The Malaysian Case

    OpenAIRE

    Heong, Yin Yun

    2010-01-01

    According to Part IX Division 1 in Securities Industry Act 1983 of Malaysia Law, stock market manipulation is defined as unlawful action taken either direct or indirectly by any person, to affect the price of securities of the corporation on a stock market in Malaysia for the purpose which may include the purpose of inducing other persons. Extending the framework of Allen and Gale (1992), the Author presents a theory based on the empirical evidence from prosecuted stock market manipulation ca...

  7. Fitness for Function and Dance Aesthetics

    OpenAIRE

    Eric C. Mullis

    2014-01-01

    This essay discusses the manner in which the appreciation of fitness for function can be applied to dance aesthetics. Drawing on Allen Carlson and Glenn Parsons’ work, the essay considers the problems of indeterminacy, translation, and dysfunction as they pertain to the appreciation of dance movement. It then argues that fitness for function can be used to critically assess post-modern task dances and contemporary dance works that do not rely on the execution of codified dance technique.

  8. Mobile phone-based asthma self-management aid for adolescents (mASMAA): a feasibility study

    OpenAIRE

    Rhee H; Allen J.; Mammen J; Swift M

    2014-01-01

    Hyekyun Rhee,1 James Allen,2 Jennifer Mammen,1 Mary Swift21School of Nursing, 2Department of Computer Science, University of Rochester, Rochester, NY, USAPurpose: Adolescents report high asthma-related morbidity that can be prevented by adequate self-management of the disease. Therefore, there is a need for a developmentally appropriate strategy to promote effective asthma self-management. Mobile phone-based technology is portable, commonly accessible, and well received by adolescents. The pu...

  9. STS-46 crewmembers participate in Fixed Base (FB) SMS training at JSC

    Science.gov (United States)

    1992-01-01

    STS-46 Atlantis, Orbiter Vehicle (OV) 104, Pilot Andrew M. Allen hands Mission Specialist (MS) and Payload Commander (PLC) Jeffrey A. Hoffman checklists from middeck locker MF43E during training session in JSC's fixed base (FB) shuttle mission simulator (SMS) located in Mission Simulation and Training Facility Bldg 5. European Space Agency (ESA) MS Claude Nicollier outfitted with communications kit assembly headset (HDST) and equipment looks beyond Hoffman to the opposite side of the middeck.

  10. Eine randomisierte Vergleichsstudie zur Verwendung von Homöopathie und internen Zitzenversieglern zum Trockenstellen von Milchkühen.

    OpenAIRE

    Maeschli, Ariane; Ivemeyer, Silvia; Notz, Christophe; Walkenhorst, Michael; Heil, Fritz; Klocke, Peter

    2011-01-01

    102 Kühe aus 13 Schweizer Biomilchviehbetrieben wurden in die Studie aufgenommen. In den letzten 10 Tagen vor dem Trockenstellen wurden 2 Milchproben von allen 4 Eutervierteln steril entnommen. Abhängig vom bakteriologischen Befund dieser Untersuchung und dem Resultat der klinischen Euteruntersuchung wurden die Kühe eingestuft und zufällig in drei Trockenstell-Behandlungsgruppen eingeteilt. Kühe mit chronischen Infektionen mit „Major Pathogenen“ (Staphylococcus aureus, Streptococcus uberi...

  11. A new species of Paraheligmonella (Nematoda, Heligmonellidae), parasite of Sylvilagus floridanus (Leporidae) from Costa Rica Una especie nueva de Paraheligmonella (Nematoda, Heligmonellidae), parásita de Sylvilagus floridanus (Leporidae) en Costa Rica

    OpenAIRE

    María Celina Digiani; Ramón A. Carreño; Marie-Claude Durette-Desset

    2008-01-01

    Paraheligmonella lamothei n. sp. (Heligmonellidae: Heligmonellinae) is described from the small intestine of a cottontail, Sylvilagus floridanus (Allen, 1890) (Leporidae), from Costa Rica. New morphological data on the synlophe and caudal bursa of Paraheligmonella romerolagi (Gibbons and Kumar, 1980), the most similar species, are also provided. The new species differs from P. romerolagi, parasitic of Romerolagus diazi (Ferrari-Pérez, 1893) from Mexico, mainly by the characters of the caudal ...

  12. A thermally stable gold(III) hydride: synthesis, reactivity, and reductive condensation as a route to gold(II) complexes.

    Science.gov (United States)

    Roşca, Dragoş-Adrian; Smith, Dan A; Hughes, David L; Bochmann, Manfred

    2012-10-15

    Going for gold: The first thermally stable gold(III) hydride [(C N C)*AuH] is presented. It undergoes regioselective insertions with allenes to give gold(III) vinyl complexes, and reductive condensation with [(C N C)*AuOH] to the air-stable Au(II) product, [(C N C)*(2)Au(2)], with a short nonbridged gold-gold bond.

  13. Zur Axiomatik der Mengenlehre

    OpenAIRE

    Schoenflies, Arthur

    2007-01-01

    Die Hilbertsche Grundlegung der Geometrie darf für alle analogen Untersuchungen als vorbildlich gelten. Zwei ihrer Eigenschaften sind es, auf die es hier ankommt. Erstens wird von allen sprachlichen Definitionen der Objekte, mit denen sie operiert, wie Punkt, Gerade, zwischen usw. abgesehen; nur ihre gegenseitigen Beziehungen und deren Grundgesetze werden axiomatisch an die Spitze gestellt. Zweitens werden die Axiome in verschiedene Gruppen gewisser Eigenart und Tragweite gespalten (die des S...

  14. Industrial Fuel Flexibility Workshop

    Energy Technology Data Exchange (ETDEWEB)

    none,

    2006-09-01

    On September 28, 2006, in Washington, DC, ITP and Booz Allen Hamilton conducted a fuel flexibility workshop with attendance from various stakeholder groups. Workshop participants included representatives from the petrochemical, refining, food and beverage, steel and metals, pulp and paper, cement and glass manufacturing industries; as well as representatives from industrial boiler manufacturers, technology providers, energy and waste service providers, the federal government and national laboratories, and developers and financiers.

  15. İş Motivasyonunun Çalışan Bağlılığı ve İşten Ayrılma Eğilimi Üzerindeki Etkileri = The Effects of Employee Work Motivation on Employee Commitment and Turnover Intention

    OpenAIRE

    Ceylan, Adnan; Çakar, Nigar Demircan

    2005-01-01

    In this study conducted on 84 public ve private sector employees, the relationships between organizational commitment, motivation to work ve turnover intention are investigated ve to determine the statistically significant relations, Allen ve Meyer's model is used. Statistically coherent corellations between affective, continuance, normative commitment ve motivation to work ve their impact on turnover intention is also investigated by regression analysis. This study serves as an important ...

  16. Determining spatial variability in PM 2.5 source impacts across Detroit, MI

    Science.gov (United States)

    Duvall, Rachelle M.; Norris, Gary A.; Burke, Janet M.; Olson, David A.; Vedantham, Ram; Williams, Ron

    2012-02-01

    Intra-urban variability in air pollution source impacts was investigated using receptor modeling of daily speciated PM 2.5 measurements collected at residential outdoor locations across Detroit, MI (Wayne County) as part of the Detroit Exposure and Aerosol Research Study (DEARS) during summer and winter from 2004 to 2006. Six areas were selected for the residential monitoring in the DEARS to capture impacts from different sources including local industry, motor vehicles, and upwind regional sources. PM 2.5 measurements were also collected at the Allen Park, MI Chemical Speciation Network (CSN) site for comparison with the residential outdoor sites. Sources impacting PM 2.5 were quantified using the EPA Chemical Mass Balance Model (CMB 8.2). Published source profiles were used as input to CMB along with a mixed industrial profile and a steel manufacturing profile obtained by applying the EPA Positive Matrix Factorization Model (PMF 4.0) to CSN data from a Midwestern U.S. site with industrial sources similar to Detroit. Major PM 2.5 sources impacting the Allen Park and residential monitoring areas during DEARS included motor vehicles (24-36% by mass), secondary sulfate/coal combustion (17-35%), secondary nitrate (16-37%) and organic matter (17-21%). Road dust, steel manufacturing, and mixed industrial sources contributed less than 11% by mass. CMB source contribution estimates for Allen Park during the DEARS generally compared well to CMB estimates from the collocated year-long CSN measurements using the same source profiles. CMB source contributions during DEARS showed similar contributions across the residential monitoring areas for secondary sulfate/coal combustion and secondary nitrate consistent with regional impacts for these sources. Contributions from motor vehicles, steel manufacturing, and mixed industrial sources varied across the DEARS monitoring areas, indicating impacts from local sources within the Detroit airshed that may not be well characterized by

  17. Hubungan antara Adversity Quotient dengan Komitmen Organisasi pada Medical Representative di Kota Medan

    OpenAIRE

    Sitompul, Cynthia Marilyn

    2016-01-01

    This study aims to examine the relationship between AQ and organizational commitment. This study involved 91 employees who work as medical representative with minimum one year job tenure. Sampling was done by incidental sampling. Data were collected by using Organizational Commitment Scale based on Allen and Meyer’s theory, including affective commitment, continuance commitment and normative commitment, and Adversity Quotient Scale based on Paul G. Stoltz’s theory. Data were...

  18. The Relationship between Organizational Commitment and Organizational Learning (Boroojerd Telecommunication Company as Case Study)

    OpenAIRE

    Javad Mehrabi; Mehrdad Jadidi; Fridodin Allameh Haery; Mehrdad Alemzadeh

    2013-01-01

    The purpose of this study is to study the relationship between organizational commitment and organizational learning among employees of Borojerd Communication Company. The statistical population of the study is employees of Borojerd Communication Company. The sample size was determined 162 based on Morgan table of sampling for population with 280 members. The sample members selected by random sampling method. In order to gather data, the standard questionnaire of Myer and Allen with 18 items ...

  19. Zur Pyometra beim Hund

    OpenAIRE

    Hahn, Nina

    2010-01-01

    Im Rahmen der hier vorliegenden Arbeit wurde die aktuelle wissenschaftliche Literatur zur Pyometra der Hündin dargestellt. In zweiten Teil der Arbeit wurden zwei interaktive Lernfälle über die Pyometra erstellt und anschließend von Studenten der Tiermedizinischen Fakultät der Ludwig Maximilian Universität München bearbeitet und evaluiert. Zur Pathogenese der Pyometra gibt es nach wie vor keine einheitliche, in allen Einzelheiten übereinstimmende, wissenschaftliche Meinung. Einigkeit besteh...

  20. Ferumoxytol versus placebo in iron deficiency anemia: efficacy, safety, and quality of life in patients with gastrointestinal disorders

    OpenAIRE

    Strauss, William

    2016-01-01

    David C Ford,1 Naomi V Dahl,2 William E Strauss,2 Charles F Barish,3 David J Hetzel,4 Kristine Bernard,2 Zhu Li,2 Lee F Allen,2 1Toronto Digestive Disease Associates, Inc, Vaughan Endoscopy Clinic, Vaughan, ON, Canada; 2AMAG Pharmaceuticals, Inc, Waltham, MA, 3Wake Gastroenterology, Wake Research Associates, Raleigh, NC, USA; 4Department of Gastroenterology, Royal Adelaide Hospital, Adelaide, SA, Australia Introduction: Iron deficiency anemia (IDA) is common in patients with gastrointestinal...

  1. Rhodium-Catalyzed Acyloxy Migration of Propargylic Esters in Cycloadditions, Inspiration from Recent “Gold Rush”

    OpenAIRE

    Shu, Xing-Zhong; Shu, Dongxu; Schienebeck, Casi M.; TANG, WEIPING

    2012-01-01

    Transition metal-catalyzed acyloxy migration of propargylic esters offers versatile entries to allene and vinyl carbene intermediates for various fascinating subsequent transformations. Most π-acidic metals (e.g. gold and platinum) are capable of facilitating these acyloxy migration events. However, very few of these processes involve redox chemistry, which are well-known for most other transition metals such as rhodium. The coupling of acyloxy migration of propargylic esters with oxidative a...

  2. Exploration of amplified fragment length polymorphism analysis as an effective tool for discriminating pathogenic strains of bacteria

    OpenAIRE

    Allen, Robert; Weinbrecht,; Taylor,, Samuel ,; Beaumann,

    2012-01-01

    K Weinbrecht,1 A Taylor,2 C Beaumann,3 RW Allen11Department of Forensic Sciences, Center for Health Sciences, Oklahoma State University, Tulsa, OK; 2Centers for Disease Control, Atlanta, GA; 3PharmaNet-i3, Indianapolis, IN, USABackground: The detrimental effect pathogens used as bioweapons could have on the US is sufficient to warrant extensive efforts to establish preparedness to prevent, and, if necessary, respond to such an event. The objective of this research was to adapt and refine ampl...

  3. Globale Entwikclung als Lernbereich in den Naturwissenschaften

    OpenAIRE

    Härtig, Hendrik; Bernholt, Sascha; Schroeter, Burkhard

    2014-01-01

    Mit dem Orientierungsrahmen für den Lernbereich Globale Entwicklung wurden Anregungen gegeben, die Themen nachhaltige Entwicklung und globale Entwicklung im Unterricht in allen Schulfächern aufzugreifen. Die drei naturwissenschaftlichen Schulfächer Biologie, Chemie und Physik haben sich bislang sehr unterschiedlich auf das Thema eingelassen. In der Biologiedidaktik finden sich sowohl Forschungsarbeiten als auch Unterrichtsvorschläge; für Chemie und insbesondere Physik existieren hingegen nur ...

  4. LEVELS OF ORGANIZATIONAL COMMITMENT FOR FEDERATION EMPLOYEES

    OpenAIRE

    Hayri DEMİR; Selçuk BUĞDAYCI

    2011-01-01

    This paper deals with the levels of organizational commitment for general secretaries, sport experts and civil servants working in sport federations. 183 persons are included in the research. Data for the research have been collected through “Three Dimensional Organizational Commitment Scale” developed by Meyer, Allen and Smith (1993). In this paper, organizational commitment is examined in three different dimensions as emotional commitment, continuance commitment and normative commitment, an...

  5. 改换门庭的使命

    Institute of Scientific and Technical Information of China (English)

    张竝

    2007-01-01

    在二○○七年一月的《纽约书评》中,罗彻斯特大学生物学教授H.Allen Orr尖锐地指出了Richard Dawkins的著作《上帝的幻影》(The God Delusion)中的悖论与不足,并对科学与宗教信仰之间的关系作了客观梳理。

  6. Aufnahme und Toxizität von Silbernanopartikeln im Intestinalmodell Caco-2

    OpenAIRE

    Böhmert, Linda

    2014-01-01

    Die Nanotechnologie gilt vor allem in der Industrie als eine wichtige Zukunftstechnologie. Zu den Nanoobjekten zählen auch Nanopartikel, die in allen drei Dimensionen eine Ausdehnung von 1 bis 100 nm haben. Ausgangspunkt dieser Arbeit war eine Stellungnahme der Europäischen Lebensmittelsicherheitsbehörde (EFSA), die sich aufgrund fehlender Daten nicht in der Lage sah, die Bewertung von kolloidalem Silber als Nahrungsergänzungsmittel vorzunehmen. Zur genaueren Charakterisierung der Auswirk...

  7. Espaço, tempo, controlo percebido e empenhamento afectivo organizacional

    OpenAIRE

    Moreira, Francisco Fontes

    2010-01-01

    Tese de doutoramento em Psicologia do Trabalho e das Organizações O empenhamento afectivo organizacional tem sido abordado predominantemente a partir de uma perspectiva instrumental e de moldagem das atitudes dos membros de uma organização, procurando sobretudo aumentar e melhorar o desempenho organizacional. No entanto, alguns autores (ver por exemplo, Meyer e Allen, 1997) têm sugerido que as experiências no trabalho, consideradas em sentido lato, são as p...

  8. Water infrastructure and the making of financial subjects in the south east of England

    OpenAIRE

    Alex Loftus; Hug March; Fiona Nash

    2016-01-01

    Over the last four decades the locus of economic power has shifted from industry to finance. As part of this trend, the 'financialisation' of the water sector has added a new layer of complexity to the hydrosocial cycle, witnessed in the emergence of new financial actors, logics and financing instruments. Such a shift has profoundly reshaped the relationship between water utilities and consumers in the South East of England, where the household has become, in the words of Allen and Pryke (201...

  9. Multi-dimensional traveling fronts in bistable reaction-diffusion equations

    OpenAIRE

    谷口 雅治; Masaharu Taniguchi

    2012-01-01

    Multi-dimensional traveling fronts have been studied in the Allen-Cahn equation (Nagumo equation) and also in multistable reaction-diffusion equations recently. Two-dimensional V-form fronts are studied by Ninomiya and myself (2005) and also by Hamel, Monneau and Roquejoffre (2005). Rotationally symmetric traveling fronts are studied by several authors.In this talk I will give a brief survey on multi-dimensional traveling fronts, and explain what is different and what gives the difficulties c...

  10. LA RESPONSABILIDAD SOCIAL VERSUS EL EMPRENDIMIENTO EN ADMINISTRACIÓN DE EMPRESAS Y CONTADURÍA DE LA UNIVERSIDAD DE CUNDINAMARCA, SEDE FUSAGASUGÁ

    OpenAIRE

    Robles-González, Alba Rocío; Velásquez-Ardila, María Cristina; Gutiérrez-Castaño, Olga Liliana; González-Leones, Yaneth del Carmen

    2016-01-01

    This document refers to applied research in the University of Cundinamarca and aims to establish the importance that magazine social responsibility in entrepreneurship as vocation and leadership of students last semester in business administration and accounting, however that in both programs the theme of entrepreneurship is a transverse line from the profile defined for graduates of these un­dergraduate.As theoretical reference, has been supported by authors such as Allen K & al., Shumpe...

  11. Handlungsspielräume einer EU-Ratspräsidentschaft : eine Funktionsanalyse des deutschen Vorsitzes im ersten Halbjahr 2007

    OpenAIRE

    2007-01-01

    'Die Untersuchung und Evaluierung von Ratspräsidentschaften kann durch die Identifizierung von Erfolgsfaktoren und 'bewährten Praktiken' dazu dienen, die Funktionsweise des EU-Ratssystems zu verbessern. Die Beiträge dieser Studie konzentrieren sich auf die Frage, welche Anforderungen verschiedene Verhandlungssituationen an den Ratsvorsitz stellten und ob dessen unterschiedliche Funktionen - Organisation und Leitung der Ratsarbeit, Vermittlung von Kompromissen auf allen Verhandlungsebenen etc....

  12. Internationales Team Building aus britischer Perspektive: mit Schwerpunkt interkultureller Kompetenz

    OpenAIRE

    Bründl-Price, Sonja

    2004-01-01

    In Zeiten wachsender Globalisierung sind internationale Teams alltäglich und werden mit allen möglichen Schattierungen von Erfolg und Misserfolg konfrontiert. Menschen unterschiedlichen kulturellen Hintergrundes bemühen sich, einander zu verstehen, interkulturelle Hindernisse zu überwinden und Gruppenpotenziale zu optimieren. Oft erübrigt sich die Frage nach der Erfolgsrate internationaler Teams im Vergleich zu monokulturellen Gruppen, da Internationalität heutzutage wesentlicher Bestandteil ...

  13. Die Praxis der 'operativen Arbeitsgruppeneinsätze' der DDR-Volkskammer : Ergebnisse einer retrospektiven Befragung von Abgeordneten

    OpenAIRE

    Elsner, Steffen H.

    1999-01-01

    Die Volkskammer der DDR war eine recht reiselustige Organisation. Die Mitglieder der Volkskammer reisten aus allen Teilen der Republik zu Plenar- und Ausschusssitzungen an und Abgeordnetengruppen besuchten darüberhinaus mehr oder weniger häufig ausgewählte Orte in der gesamten DDR. Solche Reisen von Arbeitsgruppen waren eine beliebte Form, in der die Volkskammer und ihre Ausschüsse ihrer Arbeit nachgingen. Hier wird eine unvermutete Nähe der obersten sozialistischen Körperschaft mit Problemen...

  14. A Framework for Inclusion and Diversity in Environmental Citizen Science

    OpenAIRE

    Jillian Mochnick

    2015-01-01

    Review of: Citizen Science: Public Participation in Environmental Research; Janis L. Dickinson and Rick Bonney; (2015). Comstock Publishing Associates, Ithaca, NY. 304 pages.  A review of the new book "Citizen Scienece: Public Participation in Environmental Research" by Janis L. Dickinson, Professor of Natural Resources at Cornell University and Arthur A. Allen Director of Citizen Science at the Cornell Lab of Ornithology, and Rick Bonney, Director of Program Development and Evaluation at the...

  15. Reply to "Domain-growth kinetics of systems with soft walls''

    DEFF Research Database (Denmark)

    Mouritsen, Ole G.; Præstgaard, Eigil

    1988-01-01

    On the basis of computer-simulation results for three different models with soft domain walls it is argued that the zero-temperature domain-growth kinetics falls in a separate universality class characterized by a kinetic growth exponent n≃0.25. However, for finite temperatures there is a distinct...... crossover to Lifshitz-Allen-Cahn kinetics n=0.50, thus suggesting that the soft-wall and hard-wall universality classes become identical at finite temperatures....

  16. Empirische Befunde zur Entwicklung der Lebensverhältnisse in den Ländern Sachsen, Sachsen-Anhalt und Thüringen

    OpenAIRE

    Paepke, Margit

    2010-01-01

    Ein wesentliches Leitziel der Raumordnungspolitik in Deutschland ist es, gleichwertige Lebensverhältnisse in allen Teilräumen herzustellen. Die Frage, was heute unter diesem in § 1 Abs. 2 ROG formuliertem Leitziel zu verstehen ist, wird unter Fachleuten und im politischen Raum intensiv diskutiert. Das Sozialstaatsprinzip (Art. 20 Abs. 1 GG) und Artikel 72 Abs. 2 GG gelten allgemein als politische Forderung, zurückgebliebene Regionen so zu entwickeln, dass sie einen Anschluss an die Gebiete fi...

  17. Taurine and vitamin E supplementations have minimal effects on body composition, hepatic lipids, and blood hormone and metabolite concentrations in healthy Sprague Dawley rats

    OpenAIRE

    Allen PS; Brown AW; Bohan Brown MM; Hsu WH; Beitz DC

    2015-01-01

    Portia S Allen,1 Andrew W Brown,2 Michelle M Bohan Brown,3 Walter H Hsu,4 Donald C Beitz1 1Department of Animal Science, Iowa State University, Ames, IA, USA; 2Nutrition Obesity Research Center and Office of Energetics, University of Alabama at Birmingham, Birmingham, AL, USA; 3Department of Biochemistry, Biophysics, and Molecular Biology, 4Department of Biomedical Sciences, Iowa State University, Ames, IA, USA Background: As prescriptions for off-label pharmaceutical use and autonomous admi...

  18. The ATA Digital Processing Requirements are Driven by RFI Concerns

    OpenAIRE

    Harp, G. R.

    2012-01-01

    As a new generation radio telescope, the Allen Telescope Array (ATA) is a prototype for the square kilometer array (SKA). Here we describe recently developed design constraints for the ATA digital signal processing chain as a case study for SKA processing. As radio frequency interference (RFI) becomes increasingly problematical for radio astronomy, radio telescopes must support a wide range of RFI mitigation strategies including online adaptive RFI nulling. We observe that the requirements fo...

  19. Computertomographische Darstellung der Prostata bei Rüden unterschiedlichen Alters

    OpenAIRE

    Schulze, Sabine

    2013-01-01

    In der Literatur ist in einigen Studien die computertomographischen Darstellung der caninen Prostata beschrieben, jedoch fehlen bis dato ausführliche Daten zur Auswertung dieser Untersuchungen. Mit Hilfe dieser Arbeit sollen in erster Linie methodische Fragestellungen der computertomographischen Darstellung der Prostata beantwortet werden. Es wurde bei insgesamt 50 unkastrierten Rüden mit einem Alter über zwei Jahren die Prostata computertomographisch untersucht. Zudem wurde bei allen Hun...

  20. Usefulness of Financial Accounting Information in Commercial Lending : By Banks in Sweden

    OpenAIRE

    Karilainen, Miia

    2014-01-01

    Recent research has focused more on the needs and usage of accounting information in favor of its investors. Hence, there has been less attention towards creditors’ information needs. Additionally, it has been criticized that accounting information has lost its relevance to its users (Francis & Schipper 1999; Hail 2013). As Allen and Cote (2005) stated, it is hard to make any improvements to financial reporting if creditors’ decision making behavior is not well investigated. Thus, the aim...

  1. Openness to and preference for attributes of biologic therapy prior to initiation among patients with rheumatoid arthritis: patient and rheumatologist perspectives and implications for decision making

    OpenAIRE

    Goren, Amir

    2016-01-01

    Susan C Bolge,1 Amir Goren,2 Duncan Brown,2 Seth Ginsberg,3 Isabel Allen4 1Health Economics & Outcomes Research, Janssen Scientific Affairs, LLC, Raritan, NJ, 2Health Outcomes Practice, Kantar Health, New York, 3Global Healthy Living Foundation, Upper Nyack, NY, 4Department of Biostatistics & Epidemiology, University of California San Francisco, San Francisco, CA, USA Purpose: Despite American College of Rheumatology recommendations, appropriate and timely initiation of biol...

  2. Openness to and preference for attributes of biologic therapy prior to initiation among patients with rheumatoid arthritis: patient and rheumatologist perspectives and implications for decision making

    OpenAIRE

    Bolge SC; Goren A; Brown D.; Ginsberg S; Allen I

    2016-01-01

    Susan C Bolge,1 Amir Goren,2 Duncan Brown,2 Seth Ginsberg,3 Isabel Allen4 1Health Economics & Outcomes Research, Janssen Scientific Affairs, LLC, Raritan, NJ, 2Health Outcomes Practice, Kantar Health, New York, 3Global Healthy Living Foundation, Upper Nyack, NY, 4Department of Biostatistics & Epidemiology, University of California San Francisco, San Francisco, CA, USA Purpose: Despite American College of Rheumatology recommendations, appropriate and timely initiation of biologic the...

  3. Supporting members

    Science.gov (United States)

    Life Supporting Members L. Thomas Aldrich Thomas D. Barrow Hugh J . A. Chivers Allan V. Cox Samuel S. Goldich Pembroke J. Hart A. Ivan Johnson Helmut E. Landsberg Paolo Lanzano Murli H. Manghnani L. L. Nettleton Charles B. Officer Hyman Orlin Ned A. Ostenso Erick O. Schonstedt Waldo E. Smith Athelstan Spilhaus A. F. Spilhaus, Jr. John W. Townsend, Jr. James A. Van Allen Leonard W. Weis Charles A. Whitten J. Tuzo Wilson

  4. Lightning-driven inner radiation belt energy deposition into the atmosphere: implications for ionisation-levels and neutral chemistry

    OpenAIRE

    Rodger, C. J.; Enell, C.-F.; Turunen, E; M. A. Clilverd; Thomson, N. R.; Verronen, P. T.

    2007-01-01

    International audience; Lightning-generated whistlers lead to coupling between the troposphere, the Van Allen radiation belts and the lower-ionosphere through Whistler-induced electron precipitation (WEP). Lightning produced whistlers interact with cyclotron resonant radiation belt electrons, leading to pitch-angle scattering into the bounce loss cone and precipitation into the atmosphere. Here we consider the relative significance of WEP to the lower ionosphere and atmosphere by contrasting ...

  5. Marx, Mead und das Konzept widersprüchlicher Praxis

    OpenAIRE

    Müller, Horst

    1983-01-01

    Die 'praxiswissenschaftliche' Interpretation von Meads Theorie wendet sich gegen deren 'intersubjektivitätstheoretische' Vereinnahmung und führt ihre kohärente Kerngestalt vor. Der Untersuchung liegt ein Fragespektrum zugrunde, das sich von der Handlungs- und Erkenntnis- bis zur Evolutionstheorie erstreckt. Auf allen konstitutionstheoretischen Ebenen enthüllen sich Konvergenzen zwischen Meads universalistischer Theorie und dem praxiszentrierten Marxismus. Es kristallisiert sich 'widers...

  6. Entering the Big Zone: Accruing Social Capital in a Developmental Learning Community for Nontraditional Student Success

    OpenAIRE

    Lorch, Theresa Marie

    2014-01-01

    ABSTRACT OF THE DISSERTATIONEntering the Big Zone: Accruing Social Capital in a Developmental Learning Community for Nontraditional Student Successby Theresa Marie Lorch Doctor of Philosophy in Education University of California, Los Angeles, 2014Professor Walter R. Allen, ChairOver the past decade, three rationales have emerged for improving the rate of postsecondary participation among the Latina/o population in and through the higher education pipeline. The first rationale pertains to the ...

  7. The ‘unreel’ in Woody Allen’s Zelig

    OpenAIRE

    L. Nas

    1992-01-01

    By presenting Zelig (1983) in the form of a historical documentary using archival film footage, film - director Woody Allen breaks down the conventional distinction between documentary and fiction film. Through metacinematic self-consciousness Zelig hybridly 'chameleonizes’ recorded historical 'truth' exposing this truth to be ‘unreal’: it explodes the notion of the cinematic ‘real’, turning it into the ‘unreel’.

  8. The ‘unreel’ in Woody Allen’s Zelig

    Directory of Open Access Journals (Sweden)

    L. Nas

    1992-05-01

    Full Text Available By presenting Zelig (1983 in the form of a historical documentary using archival film footage, film - director Woody Allen breaks down the conventional distinction between documentary and fiction film. Through metacinematic self-consciousness Zelig hybridly 'chameleonizes’ recorded historical 'truth' exposing this truth to be ‘unreal’: it explodes the notion of the cinematic ‘real’, turning it into the ‘unreel’.

  9. Struktur-Funktions-Analysen regulatorischer C-terminaler Domänen und Charakterisierung der Bindungsstelle des Antikonvulsivums Retigabin von spannungsgesteuerten K+-Kanälen der Kv7-Familie

    OpenAIRE

    Geißendörfer, Jan Kaspar

    2011-01-01

    Die auf der Erde vorkommenden Organismen weisen ein äußerst breites Spektrum an Transmembranproteinen auf. Dennoch finden sich zwischen den verschiedensten Arten zahlreiche Homologien, die auf eine gemeinsame evolutive Vergangenheit hinweisen. So handelt es sich beispielsweise bei den membranständigen Kaliumkanälen um Proteine, die in nahezu allen Organismen nachweisbar sind. Diese Ionenkanäle ermöglichen den selektiven Transport von positiv geladenen Kaliumionen durch die ansonsten für gelad...

  10. Funktionelle Analyse von Thioredoxin z und seinen möglichen Zielproteinen in Pflanzen

    OpenAIRE

    Wimmelbacher, Matthias

    2014-01-01

    Thioredoxine (Trx) sind kleine (ca. 13 kDa) hitzestabile Thiol-Disulfid-Oxidoreduktasen, welche an der Redoxregulation von Proteinen in allen frei lebenden Organismen beteiligt sind. Dabei reduzieren Trx Disulfidbrücken in zahlreichen Zielproteinen. Dies kann einerseits die Aktivität eines Zielenzyms direkt verändern oder durch die Weitergabe der reduzierenden Kraft an antioxidantische Proteine die Zellen vor oxidativem Stress schützen. Die durch Trx regulierten Proteine decken dabei ein brei...

  11. Protests focused on drones distract from the real issue of using targeted killings as a counter-terrorism strategy

    OpenAIRE

    Allen, Natalie

    2014-01-01

    Over the past decade, the US has carried out hundreds of strikes against terrorist targets using unmanned aerial vehicles, known as drones. The use of these drones has accelerated under the Obama Administration, which has led to growing protests over civilian casualties stemming from their operations. Natalie Allen argues that drones are in fact one of the most effective forms of warfare to prevent civilian casualties, and that whether the war itself is justified is an entirely different matt...

  12. Compromiso Organizacional: Contribución de una gestión estratégica de Recursos Humanos sobre una perspectiva de Marketing

    OpenAIRE

    Fuentes Jiménez, Pedro Antonio

    2016-01-01

    This research has as its main objective to establish a marketing perspective as a fundamental tool in the strategic management of human talent. After establishing the endomarketing perspective as adequate, a review of its concept to structure a model that represents the perspective of marketing within Bolivian companies was made. Also, taking into account the guidelines for the management of human talent, organizational commitment based on the model of Allen and Meyer is considered as fund...

  13. 78 FR 28627 - TA-W-80,340; TA-W-80,340A; TA-W-80,340B

    Science.gov (United States)

    2013-05-15

    ... Employment and Training Administration TA-W-80,340; TA-W-80,340A; TA-W-80,340B] Bush Industries, Inc., Mason... (TA-W-80,340) and Bush Industries, Inc., Allen Street Facility, Jamestown, New York (TA-W- 80,340A... the subject firm's Erie, Pennsylvania facility. The amended notice applicable to TA-W-80,340 is...

  14. Fitness for Function and Dance Aesthetics

    Directory of Open Access Journals (Sweden)

    Eric C. Mullis

    2014-01-01

    Full Text Available This essay discusses the manner in which the appreciation of fitness for function can be applied to dance aesthetics. Drawing on Allen Carlson and Glenn Parsons’ work, the essay considers the problems of indeterminacy, translation, and dysfunction as they pertain to the appreciation of dance movement. It then argues that fitness for function can be used to critically assess post-modern task dances and contemporary dance works that do not rely on the execution of codified dance technique.

  15. Frühe MINT-Bildung für alle Kinder – die Initiative „Haus der kleinen Forscher“

    OpenAIRE

    Pahnke, Janna; Rösner, Peter

    2014-01-01

    Der Fachkräftemangel in Mathematik, Informatik, Naturwissenschaften und Technik (MINT) erweist sich immer mehr als Hemmnis für den Hochtechnologiestandort Deutschland. Für eine nachhaltige Sicherung des Fachkräftebedarfs ist eine attraktive MINT-Bildung Voraussetzung. Zudem stellt sich in einer Gesellschaft, die von Natur- und Technikwissenschaften geprägt ist, die Notwendigkeit, allen Menschen ein entsprechendes Grundverständnis zu vermitteln. Wissenschaft und Politik sind gefordert, didakti...

  16. Internationale MINT-Bildung aus soziologischer Sicht

    OpenAIRE

    Pfenning, Uwe; Renn, Ortwin

    2014-01-01

    Der Fachkräftemangel in Mathematik, Informatik, Naturwissenschaften und Technik (MINT) erweist sich immer mehr als Hemmnis für den Hochtechnologiestandort Deutschland. Für eine nachhaltige Sicherung des Fachkräftebedarfs ist eine attraktive MINT-Bildung Voraussetzung. Zudem stellt sich in einer Gesellschaft, die von Natur- und Technikwissenschaften geprägt ist, die Notwendigkeit, allen Menschen ein entsprechendes Grundverständnis zu vermitteln. Wissenschaft und Politik sind gefordert, didakti...

  17. Neue Medien und die veränderte Organisation des Lehrens und Lernens

    OpenAIRE

    Witt, Claudia

    2000-01-01

    Neue Medien verändern die Organisation des Lehrens und Lernens in allen Bereichen des Bildungswesens. Neue netzbasierte Organisationsmodelle zeichnen sich an Universitäten, in betrieblichen Ausbildungen und an Schulen ab und neue mediale Formen unterstützen zunehmend die digitale Wissensorganisation. Diese Trends zur Organisation netzbasierter Lehr- und Lernumgebungen in Bildungseinrichtungen werden skizziert. (DIPF/Orig.) New media change the organisation of teaching and learning in all a...

  18. The Sexualized-Body-Inversion-Hypothesis Revisited: Valid Indicator of Sexual Objectification or Methodological Artifact?

    OpenAIRE

    Schmidt, Alexander F.; Kistemaker, Lisa M.

    2015-01-01

    Recently, Bernard, Gervais, Allen, Campomizzi, and Klein (2012) reported that individuals were less able to recognize inverted vs. upright pictures of sexualized men as compared to women. Based on their formulation of the sexualized-body-inversion hypothesis (SBIH) it was concluded that sexualized women as compared to men are perceived in a more object-like manner supporting sexual objectification (SO) of females – independent from observer gender. We challenge this interpretation and hypothe...

  19. Disease: H00538 [KEGG MEDICUS

    Lifescience Database Archive (English)

    Full Text Available Tippens M, Raymond PA, Hill J, Beales P, He S, Kispert A, Margolis B, Williams DS, Swaroop A, Hildebrand...anasio M, Allen SJ, Parisi MA, Glass I, Utsch B, Hashmi S, Fazzi E, Omran H, O'Toole JF, Sayer JA, Hildebrand..., Ruschendorf F, Polak BC, Ala-Mello S, Hoefele J, Wiedensohler A, Haller M, Omran H, Nurnberg P, Hildebrand

  20. Effect of Job Autonomy Upon Organizational Commitment of Employees at Different Hierarchical Level

    OpenAIRE

    Shalini Sisodia; Ira Das

    2013-01-01

    The main aim of the present study was to examine the effect of job autonomy upon organizational commitment of employees at different hierarchical level. A study was made on randomly selected 100 male employees who work in different organizations in Agra, who were administered Organizational Commitment Scale (by Allen & Meyer, 1990) and Job Autonomy Scale (by Das, Arora, & Singhal, 2000). On the basis of median of the job autonomy scores, the sample was divided into two groups (1) high job aut...