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Sample records for den timepix pixelchip

  1. Cool Timepix - Electronic noise of the Timepix readout chip down to -125 sub o C

    NARCIS (Netherlands)

    Schön, R.; Alfonsi, M.; van Bakel, N.; van Beuzekom, M.; Koffeman, E.

    2015-01-01

    The Timepix readout chip with its 65k pixels on a sensitive area of 14 mm×14 mm provides a fine spatial resolution for particle tracking or medical imaging. We explore the operation of Timepix in a dual-phase xenon environment (around −110 °C). Used in dual-phase xenon time projection chambers, e.g.

  2. Charged Particle Tracking with the Timepix ASIC

    CERN Document Server

    Akiba, Kazuyoshi; Collins, P; Crossley, M; Dumps, R; Gersabeck, M; Gligorov, Vladimir V; Llopart, X; Nicol, M; Poikela, T; Cabruja, Enric; Fleta, C; Lozano, M; Pellegrini, G; Bates, R; Eklund, L; Hynds, D; Ferre Llin, L; Maneuski, D; Parkes, C; Plackett, R; Rodrigues, E; Stewart, G; Akiba, K; van Beuzekom, M; Heijne, V; Heijne, E H M; Gordon, H; John, M; Gandelman, M; Esperante, D; Gallas, A; Vazquez Regueiro, P; Bayer, F; Michel, T; Needham, M; Artuso, M; Badman, R; Borgia, A; Garofoli, J; Wang, J; Xing, Z; Buytaert, Jan; Leflat, Alexander

    2012-01-01

    A prototype particle tracking telescope has been constructed using Timepix and Medipix ASIC hybrid pixel assemblies as the six sensing planes. Each telescope plane consisted of one 1.4 cm2 assembly, providing a 256x256 array of 55 micron square pixels. The telescope achieved a pointing resolution of 2.3 micron at the position of the device under test. During a beam test in 2009 the telescope was used to evaluate in detail the performance of two Timepix hybrid pixel assemblies; a standard planar 300 micron thick sensor, and 285 micron thick double sided 3D sensor. This paper describes a detailed charge calibration study of the pixel devices, which allows the true charge to be extracted, and reports on measurements of the charge collection characteristics and Landau distributions. The planar sensor achieved a best resolution of 4.0 micron for angled tracks, and resolutions of between 4.4 and 11 micron for perpendicular tracks, depending on the applied bias voltage. The double sided 3D sensor, which has signific...

  3. Identification of stopping ions in a silicon Timepix detector

    Science.gov (United States)

    Stoffle, Nicholas; Pinsky, Lawrence

    2018-02-01

    Timepix detectors are increasingly used in space-based applications. Such detectors are low power, low mass, and provide a wealth of information necessary for characterizing the ionizing radiation environment in space for both humans and hardware. Stopping ions are shown to contribute to the energy loss spectrum in a thin, pixelated, Timepix detector, and this energy loss is shown to contribute to the LET spectrum near 14 keV/micron. Bulk data also indicates the presence of Hydrogen isotopes in the energy loss spectra. Individual track analysis can be used to identify the stopping ions and the related energy and isotope through comparison with theoretical energy loss curves. While this calculation is specific to the Timepix, the impact of stopping ions on other instruments can be estimated using the insight gained from this approach.

  4. Feasibility study of a TIMEPIX detector for mammography applications

    Science.gov (United States)

    Ávila, Carlos A.; Mendoza, Luis M.; Roque, Gerardo A.; Loaiza, Leonardo; Racedo, Jorge; Rueda, Roberto

    2017-11-01

    We present a comparison study of two X-ray systems for mammography imaging. One is a SELENIA clinical system and the second is a TIMEPIX based system. The aim of the study is to determine the capability of a TIMEPIX detector for mammography applications. We first compare signal to noise ratio (SNR) of X-ray images of Al2O3 spheres with diameters of 0.16mm, 0.24mm and 0.32mm, of a commercial mammography accreditation phantom CIRS015, obtained with each system. Then, we make a similar comparison for a second phantom built with Hydroxyapatite crystals with different morphology and sizes ranging between 0.15mm and 0.83mm, which are embedded within the same block of PMMA of the CIRS015 phantom. Our study allows us to determine the minimum size of Al2O3 spheres on the order of 240μm, with 33% lower SNR for the TIMEPIX system as compared to the SELENIA system. When comparing the images of Hydroxyapatite crystals from both systems, the minimum size observed is about 300μm, with 23% lower SNR for TIMEPIX.

  5. The Timepix Telescope for High Performance Particle Tracking

    CERN Document Server

    Akiba, Kazuyoshi; van Beuzekom, Martin; van Beveren, Vincent; Borghi, Silvia; Boterenbrood, Henk; Buytaert, Jan; Collins, Paula; Dosil Suárez, Alvaro; Dumps, Raphael; Eklund, Lars; Esperante, Daniel; Gallas, Abraham; Gordon, Hamish; van der Heijden, Bas; Hombach, Christoph; Hynds, Daniel; John, Malcolm; Leflat, Alexander; Li, Yi Ming; Longstaff, Ian; Morton, Alexander; Nakatsuka, Noritsugu; Nomerotski, Andre; Parkes, Chris; Perez Trigo, Eliseo; Plackett, Richard; Reid, Matthew M; Rodriguez Perez, Pablo; Schindler, Heinrich; Szumlak, Tomasz; Tsopelas, Panagiotis; Vázquez Sierra, Carlos; Velthuis, Jaap; Wysokinski, Michal

    2013-01-01

    The Timepix particle tracking telescope has been developed as part of the LHCb VELO Upgrade project, supported by the Medipix Collaboration and the AIDA framework. It is a primary piece of infrastructure for the VELO Upgrade project and is being used for the development of new sensors and front end technologies for several upcoming LHC trackers and vertexing systems. The telescope is designed around the dual capability of the Timepix ASICs to provide information about either the deposited charge or the timing information from tracks traversing the 14 x 14mm matrix of 55 x 55 um pixels. The rate of reconstructed tracks available is optimised by taking advantage of the shutter driven readout architecture of the Timepix chip, operated with existing readout systems. Results of tests conducted in the SPS North Area beam facility at CERN show that the telescope typically provides reconstructed track rates during the beam spills of between 3.5 and 7.5 kHz, depending on beam conditions. The tracks are time stamped wi...

  6. Test Beam Data Analysis for a Timepix3 Readout Chip

    CERN Document Server

    Williams, Morag

    2016-01-01

    The vertex and tracker detector R&D for a future linear collider (CLICdp) aims at developing new silicon sensor technologies. The EP-LCD group has been helping develop a novel pixel detector chip called the Timepix3 with a very thick active silicon layer (675 μm). This thick detector can be used to reconstruct the track incidence angle using the charge drift-time information. To evaluate the principle, test beam data was taken in October 2015 and June 2016 with the Timepix3 at various angles to the beam. The data was analysed to evaluate the sensors performance in calculating the track incidence angle. The device angle was determined using three methods: the first using the cluster size information, secondly using the timing information, and finally using a multivariate analysis technique. The timing method proved the principle of the Timepix3 track angle measurements but the MVA method was found to give much better results, especially for smaller angles, than the other two methods and requires fewer cal...

  7. The Timepix3 Telescope for LHCb Upgrade RD 1 measurements

    CERN Document Server

    Saunders, Daniel Martin

    2016-01-01

    The Timepix3 telescope is a high rate, data driven beam telescope created for LHCb upgrade studies, such as sensor performance for prototypes of the vertex locator (VELO) upgrade. When testing VELO prototypes the readout is identical to the telescope, and additionally, a simple way to integrate triggers from other detectors is also provided, allowing tracks to be synchronised offline with other devices under test. Examples of LHCb upgrade detectors which have been qualified with the Timepix3 telescope are the Upstream Tracker (UT), Scintillating Fibres (SciFi), Ring Imaging CHerenkov (RICH), and Time Of internally Reflected CHerenkov light (TORCH). The telescope was installed in the SPS North hall at CERN. It consists of 8 planes with 300 μ m p-on-n silicon sensors read out by Timepix3 ASICs. Tracks measured with the telescope have excellent temporal ( ∼ 1 ns) and spatial resolution ( 2 μ m). The telescope has been operated with a rate of tracks written to disk up to 5 MHz - limited only by conditions at ...

  8. USB 3.0 readout and time-walk correction method for Timepix3 detector

    Science.gov (United States)

    Turecek, D.; Jakubek, J.; Soukup, P.

    2016-12-01

    The hybrid particle counting pixel detectors of Medipix family are well known. In this contribution we present new USB 3.0 based interface AdvaDAQ for Timepix3 detector. The AdvaDAQ interface is designed with a maximal emphasis to the flexibility. It is successor of FitPIX interface developed in IEAP CTU in Prague. Its modular architecture supports all Medipix/Timepix chips and all their different readout modes: Medipix2, Timepix (serial and parallel), Medipix3 and Timepix3. The high bandwidth of USB 3.0 permits readout of 1700 full frames per second with Timepix or 8 channel data acquisition from Timepix3 at frequency of 320 MHz. The control and data acquisition is integrated in a multiplatform PiXet software (MS Windows, Mac OS, Linux). In the second part of the publication a new method for correction of the time-walk effect in Timepix3 is described. Moreover, a fully spectroscopic X-ray imaging with Timepix3 detector operated in the ToT mode (Time-over-Threshold) is presented. It is shown that the AdvaDAQ's readout speed is sufficient to perform spectroscopic measurement at full intensity of radiographic setups equipped with nano- or micro-focus X-ray tubes.

  9. Katherine: Ethernet Embedded Readout Interface for Timepix3

    Science.gov (United States)

    Burian, P.; Broulím, P.; Jára, M.; Georgiev, V.; Bergmann, B.

    2017-11-01

    The Timepix3—the latest generation of hybrid particle pixel detectors of Medipix family—yields a lot of new possibilities, i.e. a high hit-rate, a time resolution of 1.56 ns, event data-driven readout mode, and the capability of measuring the Time-over-Threshold (ToT - energy) and the Time-of-Arrival (ToA) simultaneously. This paper introduces a newly developed readout device for the Timepix3, called "Katherine", featuring a Gigabit Ethernet interface. The primary benefit of the Katherine is the operation of Timepix3 at long distance (up to 100 m) from computer or server, which is advantageous for the installation at beam lines, where the access is difficult or where radiation levels are too high for human interventions. The maximal hit-rate is limited by the bandwidth of the Ethernet connection (peer-to-peer connection; up to 16 Mhit/s). Since the Katherine interface is equipped with a processor of high computational power (ARM Cortex-A9 dual-core processor), it permits the use as a stand-alone (autonomous) radiation detector. The key features of the device are described in detail. These are the implemented high voltage power supply offering both polarities of bias voltage (up to ± 300 V), the automatic data sending to a sever via SSH, the automatic compensation of ToA values from columns with shifted matrix clock, etc. A dedicated control software was developed, which can be used for the detector preparation (sensor equalization, the DACs dependency scan, and the THL scan) and measurement control. Measured energy spectra from photon fields are shown.

  10. The Timepix Telescope for high performance particle tracking

    Energy Technology Data Exchange (ETDEWEB)

    Akiba, K. [Federal University of Rio de Janeiro, Rio de Janeiro (Brazil); Ronning, P. [CERN, The European Organisation for Nuclear Research, Geneva (Switzerland); Beuzekom, M. van; Beveren, V. van [NIKHEF, Amsterdam (Netherlands); Borghi, S. [University of Manchester, Manchester, Lancashire (United Kingdom); Boterenbrood, H. [NIKHEF, Amsterdam (Netherlands); Buytaert, J.; Collins, P. [CERN, The European Organisation for Nuclear Research, Geneva (Switzerland); Dosil Suárez, A. [Universidade de Santiago de Compostela, Santiago de Compostela (Spain); Dumps, R. [CERN, The European Organisation for Nuclear Research, Geneva (Switzerland); Eklund, L. [Glasgow University, Glasgow, Lanarkshire (United Kingdom); Esperante, D.; Gallas, A. [Universidade de Santiago de Compostela, Santiago de Compostela (Spain); Gordon, H. [University of Oxford, Oxfordshire (United Kingdom); Heijden, B. van der [NIKHEF, Amsterdam (Netherlands); Hombach, C. [University of Manchester, Manchester, Lancashire (United Kingdom); Hynds, D. [Glasgow University, Glasgow, Lanarkshire (United Kingdom); John, M. [University of Oxford, Oxfordshire (United Kingdom); Leflat, A. [Lomonosov Moscow State University, Moscow (Russian Federation); Li, Y. [University of Oxford, Oxfordshire (United Kingdom); and others

    2013-09-21

    The Timepix particle tracking telescope has been developed as part of the LHCb VELO Upgrade project, supported by the Medipix Collaboration and the AIDA framework. It is a primary piece of infrastructure for the VELO Upgrade project and is being used for the development of new sensors and front end technologies for several upcoming LHC trackers and vertexing systems. The telescope is designed around the dual capability of the Timepix ASICs to provide information about either the deposited charge or the timing information from tracks traversing the 14×14 mm matrix of 55×55μm pixels. The rate of reconstructed tracks available is optimised by taking advantage of the shutter driver readout architecture of the Timepix chip, operated with existing readout systems. Results of tests conducted in the SPS North Area beam facility at CERN show that the telescope typically provides reconstructed track rates during the beam spills of between 3.5 and 7.5 kHz, depending on beam conditions. The tracks are time stamped with 1 ns resolution with an efficiency of above 98% and provide a pointing resolution at the centre of the telescope of ∼1.6μm. By dropping the time stamping requirement the rate can be increased to ∼15kHz, at the expense of a small increase in background. The telescope infrastructure provides CO{sub 2} cooling and a flexible mechanical interface to the device under test, and has been used for a wide range of measurements during the 2011–2012 data taking campaigns. -- Highlights: • We provide a technical description of the Timepix Telescope for particle tracking applications. • We demonstrate the spatial and timing resolution to be 2μm and 1 ns respectively. • The maximum particle rate is 7.5 kHz with highly resolved timing and spacing. • The maximum particle rate is 15 kHz with only highly resolved spacing. • We briefly describe the software and tracking algorithms used to achieve this.

  11. Particle Trajectory Visualization and Identification with Timepix Detectors

    CERN Document Server

    Flores, Jessica; Shaa, Ameir; CERN. Geneva. EP Department

    2016-01-01

    The TimePix detector is a largely passive detector deployed at point 8 on the Large Hadron Collider (LHC) ring. It is able to detect different kinds of radiation in real time. Energy deposits in the detector is registered as signal describing the spacial trajectories of passing particles. The signal data is analysed and classified in order to understand the types of particle interactions occurring and identify anomalous occurrences. Using topological features if trajectories described by the data and one or more related features of said topology, the data was categorized using an algorithm to an efficiency of 85%.

  12. Development of a Timepix3 readout system based on the Merlin readout system

    International Nuclear Information System (INIS)

    Crevatin, G.; Carrato, S.; Horswell, I.; Omar, D.; Tartoni, N.; Cautero, G.

    2015-01-01

    Timepix3 chip is a new ASIC specifically designed to readout hybrid pixel detectors. The main purpose of Timepix3 is to measure the time of arrival of events. This characteristic can be exploited very effectively to develop detectors for time resolved experiments at synchrotron radiation facilities. In order to investigate how the ASIC can be applied to synchrotron experiments the Merlin readout system, developed at Diamond for the Medipix3 ASIC, has been adapted to readout the Timepix3 ASIC. The first tests of the ASIC with pulse injection and with alpha particles show that its behaviour is consistent with its nominal characteristics

  13. Optimization of the Timepix chip to measurement of radon, thoron and their progenies

    Czech Academy of Sciences Publication Activity Database

    Janik, M.; Ploc, Ondřej; Fiederle, M.; Proc, S.; Kavasi, N.

    2016-01-01

    Roč. 107, JAN (2016), s. 220-224 ISSN 0969-8043 Institutional support: RVO:61389005 Keywords : Radon * Thoron * Timepix * calibration Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders Impact factor: 1.128, year: 2016

  14. MCP detector read out with a bare quad Timepix at kilohertz frame rates

    International Nuclear Information System (INIS)

    Vallerga, J; Tremsin, A; McPhate, J; Siegmund, O; Raffanti, R

    2011-01-01

    The existing Berkeley neutron sensitive MCP/Timepix hybrid detector has been very successful at demonstrating energy resolved spatial imaging with a single Timepix ASIC read out at a ∼ 30 Hz frame rate where each neutron's position and time (energy) is determined (X,Y,E). By increasing the detector format using a quad arrangement of Timepix readouts and increasing the frame rate to 1 kHz, we can increase our total event throughput by a factor of 120, thereby taking full advantage of the high fluxes of modern pulsed neutron sources (10 6 n cm -2 s -1 ). The key to this conversion is a new design for the ASIC readout, called the Berkeley Quad Timepix detector, consisting of 3 major subsystems. The first is a quad (2 x 2) bare Timepix ASIC board mounted directly behind the neutron sensitive MCPs in a hermetic vacuum enclosure with a sapphire window. The data from the Timepix ASICs flow to the second subsystem called the Interface board whose field programmable gate array (FPGA) rearranges and converts the digital bit stream to LVDS logic levels before sending downstream to the third subsystem, the Roach board. The Roach board is also FPGA based, and takes the data from all the ASICs and analyses the frames to extract information on the input events to pass on to the host PC. This paper describes in detail the hardware and firmware designs to accomplish this task.

  15. Neutron Imaging with Timepix Coupled Lithium Indium Diselenide

    Directory of Open Access Journals (Sweden)

    Elan Herrera

    2017-12-01

    Full Text Available The material lithium indium diselenide, a single crystal neutron sensitive semiconductor, has demonstrated its capabilities as a high resolution imaging device. The sensor was prepared with a 55 μ m pitch array of gold contacts, designed to couple with the Timepix imaging ASIC. The resulting device was tested at the High Flux Isotope Reactor, demonstrating a response to cold neutrons when enriched in 95% 6 Li. The imaging system performed a series of experiments resulting in a <200 μ m resolution limit with the Paul Scherrer Institute (PSI Siemens star mask and a feature resolution of 34 μ m with a knife-edge test. Furthermore, the system was able to resolve the University of Tennessee logo inscribed into a 3D printed 1 cm 3 plastic block. This technology marks the application of high resolution neutron imaging using a direct readout semiconductor.

  16. Properties of GaAs:Cr-based Timepix detectors

    Science.gov (United States)

    Smolyanskiy, P.; Bergmann, B.; Chelkov, G.; Kotov, S.; Kruchonak, U.; Kozhevnikov, D.; Mora Sierra, Y.; Stekl, I.; Zhemchugov, A.

    2018-02-01

    The hybrid pixel detector technology brought to the X-ray imaging a low noise level at a high spatial resolution, thanks to the single photon counting. However, silicon as the most widespread detector material is marginally sensitive to photons with energies above 30 keV. Therefore, the high-Z alternatives to silicon such as gallium arsenide and cadmium telluride are increasingly attracting attention of the community for the development of X-ray imaging systems. The results of our investigations of the Timepix detectors bump bonded to sensors made of gallium arsenide compensated by chromium (GaAs:Cr) are presented in this work. The following properties are most important from the practical point of view: the IV characteristics, the charge transport characteristics, photon detection efficiency, operational stability, homogeneity, temperature dependence, as well as energy and spatial resolution are considered. The applicability of these detectors for spectroscopic X-ray imaging is discussed.

  17. Den gode handling og den gode grund

    DEFF Research Database (Denmark)

    Dehs, Jørgen

    1993-01-01

    Den tyske filosof Immanuel Kant er aktuel i dagens etik-debat. "Grundlæggelse af moralens metafysik".......Den tyske filosof Immanuel Kant er aktuel i dagens etik-debat. "Grundlæggelse af moralens metafysik"....

  18. Investigating the Inverse Square Law with the Timepix Hybrid Silicon Pixel Detector: A CERN [at] School Demonstration Experiment

    Science.gov (United States)

    Whyntie, T.; Parker, B.

    2013-01-01

    The Timepix hybrid silicon pixel detector has been used to investigate the inverse square law of radiation from a point source as a demonstration of the CERN [at] school detector kit capabilities. The experiment described uses a Timepix detector to detect the gamma rays emitted by an [superscript 241]Am radioactive source at a number of different…

  19. Den unge Heidegger

    DEFF Research Database (Denmark)

    Den første antologi på dansk om den unge Heideggers skrifter og udviklingen før Væren og tid......Den første antologi på dansk om den unge Heideggers skrifter og udviklingen før Væren og tid...

  20. Verification of Dosimetry Measurements with Timepix Pixel Detectors for Space Applications

    Science.gov (United States)

    Kroupa, M.; Pinsky, L. S.; Idarraga-Munoz, J.; Hoang, S. M.; Semones, E.; Bahadori, A.; Stoffle, N.; Rios, R.; Vykydal, Z.; Jakubek, J.; hide

    2014-01-01

    The current capabilities of modern pixel-detector technology has provided the possibility to design a new generation of radiation monitors. Timepix detectors are semiconductor pixel detectors based on a hybrid configuration. As such, the read-out chip can be used with different types and thicknesses of sensors. For space radiation dosimetry applications, Timepix devices with 300 and 500 microns thick silicon sensors have been used by a collaboration between NASA and University of Houston to explore their performance. For that purpose, an extensive evaluation of the response of Timepix for such applications has been performed. Timepix-based devices were tested in many different environments both at ground-based accelerator facilities such as HIMAC (Heavy Ion Medical Accelerator in Chiba, Japan), and at NSRL (NASA Space Radiation Laboratory at Brookhaven National Laboratory in Upton, NY), as well as in space on board of the International Space Station (ISS). These tests have included a wide range of the particle types and energies, from protons through iron nuclei. The results have been compared both with other devices and theoretical values. This effort has demonstrated that Timepix-based detectors are exceptionally capable at providing accurate dosimetry measurements in this application as verified by the confirming correspondence with the other accepted techniques.

  1. Measurement of an accelerator based mixed field with a Timepix detector

    CERN Document Server

    George, S P; Fröjdh, E; Murtas, F; Silari, M

    2015-01-01

    We present an analysis of a high energy mixed field taken with a Timepix chip at the CERF facility at CERN. The Timepix is an active array of 65K energy measuring pixels which allows visualization and energy measurement of the tracks created by individual particles. This allows characteristics of interest such as the LET and angular distributions of the incoming tracks to be calculated, as well as broad morphological track categories based on pattern recognition techniques. We compute and compare LET-like and angular information for different morphological track categories. Morphological track categories are found to possess overlapping LET and energy spectra, however the approaches are found to be complementary with morphological clustering yielding information which is indistinguishable on the basis of LET alone. The use of the Timepix as an indirect monitoring device outside of the primary beam at CERF is briefly discussed.

  2. Imaging performance of a Timepix detector based on semi-insulating GaAs

    Science.gov (United States)

    Zaťko, B.; Zápražný, Z.; Jakůbek, J.; Šagátová, A.; Boháček, P.; Sekáčová, M.; Korytár, D.; Nečas, V.; Žemlička, J.; Mora, Y.; Pichotka, M.

    2018-01-01

    This work focused on a Timepix chip [1] coupled with a bulk semi-insulating GaAs sensor. The sensor consisted of a matrix of 256 × 256 pixels with a pitch of 55 μm bump-bonded to a Timepix ASIC. The sensor was processed on a 350 μm-thick SI GaAs wafer. We carried out detector adjustment to optimize its performance. This included threshold equalization with setting up parameters of the Timepix chip, such as Ikrum, Pream, Vfbk, and so on. The energy calibration of the GaAs Timepix detector was realized using a 241Am radioisotope in two Timepix detector modes: time-over-threshold and threshold scan. An energy resolution of 4.4 keV in FWHM (Full Width at Half Maximum) was observed for 59.5 keV γ-photons using threshold scan mode. The X-ray imaging quality of the GaAs Timepix detector was tested using various samples irradiated by an X-ray source with a focal spot size smaller than 8 μm and accelerating voltage up to 80 kV. A 700 μm × 700 μm gold testing object (X-500-200-16Au with Siemens star) fabricated with high precision was used for the spatial resolution testing at different values of X-ray image magnification (up to 45). The measured spatial resolution of our X-ray imaging system was about 4 μm.

  3. Antiproton tagging and vertex fitting in a Timepix3 detector

    CERN Document Server

    Aghion, S.; The AEGIS collaboration; Antonello, M.; Belov, A.; Bonomi, G.; Brusah, R. S.; Caccia, M.; Camper, A.; Caravita, R.; Castelli, F.; Cerchiari, G.; Comparat, D.; Consolati, G.; Demetrio, A.; Di Noto, L.; Doser, M.; Evans, C.; Fanì, M.; Ferragut, R.; Fesel, J.; Fontana, A.; Gerber, S.; Giammarchi, M.; Gligorova, A.; Guatieri, F.; Hackstock, P.; Haider, S.; Hinterberger, A.; Holmestad, H.; Kellerbauer, A.; Khalidova, O.; Krasnický, D.; Lagomarsino, V.; Lansonneur, P.; Lebrun, P.; Malbrunot, C.; Mariazzi, S.; Marton, J.; Matveev, V.; Müller, S. R.; Nebbia, G.; Nedelec, P.; Oberthaler, M.; Pacifico, N.; Pagano, D.; Penasa, L.; Petracek, V.; Prelz, F.; Prevedelli, M.; Rienaecker, B.; Robert, J.; Røhne, O. M.; Rotondi, A.; Sandaker, H.; Santoro, R.; Smestad, L.; Sorrentino, F.; Testera, G.; Tietje, I. C.; Widmann, E.; Yzombard, P.; Zimmer, C.; Zmeskal, J.; Zurlo, N.

    2018-01-01

    Studies of antimatter are important for understanding our universe at a fundamental level. There are still unsolved problems, such as the matter-antimatter asymmetry in the universe. The AEgIS experiment at CERN aims at measuring the gravitational fall of antihydrogen in order to determine the gravitational force on antimatter. The proposed method will make use of a position-sensitive detector to measure the annihilation point of antihydrogen. Such a detector must be able to tag the antiproton, measure its time of arrival and reconstruct its annihilation point with high precision in the vertical direction. This work explores a new method for tagging antiprotons and reconstructing their annihilation point. Antiprotons from the Antiproton Decelerator at CERN was used to obtain data on direct annihilations on the surface of a silicon pixel sensor with Timepix3 readout. These data were used to develop and verify a detector response model for annihilation of antiprotons in this detector. Using this model and the a...

  4. Evaluation of Timepix silicon detector for the detection of 18F positrons

    Science.gov (United States)

    Wang, Q.; Tous, J.; Liu, Z.; Ziegler, S.; Shi, K.

    2014-05-01

    Timepix is an evolving energy and position sensitive pixel detector. It consists of a silicon detector (sensitive layer 300 μm thick) bump-bonded to the Timepix readout chip developed by the Medipix2 collaboration. This study aims to test the feasibility of using the acquired energy and position signals from Timepix for positron imaging. The signals of the commonly used fluorine-18 PET (positron emission tomography) tracer [18F]FDG were measured using Timepix operated both in single particle counting (Medipix) and in time over threshold (TOT) modes. The spatial resolution (SR) was measured using the absorber edge method (AEM) and was calculated from the over-sampled line spread function. The track of a positron in the Timepix detector was characterized as a cluster and the energy weighted centroid of each cluster was considered as readout for the position of the positron incidence. The measurement results were compared with theoretical predictions using Monte-Carlo simulations. In addition, imaging of a tissue slice of a mouse heart was analysed with reference to standard phosphor plate imaging. Our results show that the SR was improved from 177.1±4.1 μm (centroid without energy weighting) to 155.5±3.1 μm μm (centroid with energy weighting). About 12% enhancement of SR was achieved with energy information in TOT mode. The sensitivity of Timepix was 0.35 cps/Bq based on the measurements. The measuring background and the ratio between detected positrons and gamma rays were also evaluated and were found to be consistent with theoretical predictions. A small enhancement of image quality was also achieved by applying energy information to the data of the measured tissue sample. Our results show that the inclusion of energy information could slightly enhance the positron measurement compared to without energy information and the Timepix provides a high SR and sensitivity for positron detection. Thus, Timepix is a potentially effective tool for 2D positron imaging.

  5. Den Russiske Revolution

    DEFF Research Database (Denmark)

    Den Russiske Revolution er en af de mest afgørende politiske og sociale begivenheder i det 20. århundredes historie. Den skabte de ideologiske og geopolitiske parametre, der dominerede verden frem til 1991 - og på mange måder stadig gør det. Fortolkningen af Den Russiske Revolution har været et...

  6. Den umulige film

    DEFF Research Database (Denmark)

    Moestrup, Steffen Damkjær

    2014-01-01

    Den smertelige Sorg og Glæde fuldender en lang og glorværdig karriere for danske Nils Malmros. Den er en yderst vellykket film, fordi den forbliver usentimental om en skæbnesvanger dag i instruktørens liv....

  7. Den canadiske model

    DEFF Research Database (Denmark)

    Böss, Michael

    2009-01-01

    Det har altid været en amerikansk fordom, at Canada er et kedeligt land. Men i lyset af den finansielle krise, er den fordom sværere at holde fast i. Nabolandet mod nord, hvor hverken socialisme eller radikal liberalisme har nydt stor udbredelse, og hvor den finansielle sektor i lang tid har været...

  8. Den amerikanske udfordring

    DEFF Research Database (Denmark)

    Böss, Michael

    1994-01-01

    stalinistiske Bulgarien. Opgøret med den strukturalistiske skole, han selv var med til at danne, satte specielt ind efter hans genlæsning af Mikail Bakhtin i begyndelsen af 1970'erne. Nu vender han sig mod den relativisme, som både denne og den post-koloniale amerikanske kritik er udtryk for....

  9. Direct detection of antiprotons with the Timepix3 in a new electrostatic selection beamline

    Energy Technology Data Exchange (ETDEWEB)

    Pacifico, N., E-mail: nicola.pacifico@cern.ch [Institute of Physics and Technology, University of Bergen, Allgaten 55, 5007 Bergen (Norway); Aghion, S. [Politecnico of Milano, Piazza Leonardo da Vinci 32, 20133 Milano (Italy); INFN Milano, via Celoria 16, 20133 Milano (Italy); Alozy, J. [Physics Department, CERN, 1211 Geneva 23 (Switzerland); Amsler, C.; Ariga, A.; Ariga, T. [Laboratory for High Energy Physics, Albert Einstein Center for Fundamental Physics, University of Bern, 3012 Bern (Switzerland); Bonomi, G. [Department of Mechanical and Industrial Engineering, University of Brescia, via Branze 38, 25123 Brescia (Italy); INFN Pavia, via Bassi 6, 27100 Pavia (Italy); Bräunig, P. [Kirchhoff-Institute for Physics, Heidelberg University, Im Neuenheimer Feld 227, 69120 Heidelberg (Germany); Bremer, J. [Physics Department, CERN, 1211 Geneva 23 (Switzerland); Brusa, R.S. [Department of Physics, University of Trento, via Sommarive 14, 38123 Povo, Trento (Italy); TIFPA/INFN Trento, via Sommarive 14, 38123 Povo, Trento (Italy); Cabaret, L. [Laboratory Aimé Cotton, University of Paris-Sud, ENS Cachan, CNRS, University Paris-Saclay, 91405 Orsay Cedex (France); Caccia, M. [INFN Milano, via Celoria 16, 20133 Milano (Italy); Department of Science, University of Insubria, Via Valleggio 11, 22100 Como (Italy); Campbell, M. [Physics Department, CERN, 1211 Geneva 23 (Switzerland); Caravita, R. [Department of Physics, University of Genova, via Dodecaneso 33, 16146 Genova (Italy); INFN Genova, via Dodecaneso 33, 16146 Genova (Italy); Castelli, F. [INFN Milano, via Celoria 16, 20133 Milano (Italy); Department of Physics, University of Milano, via Celoria 16, 20133 Milano (Italy); Cerchiari, G. [Max Planck Institute for Nuclear Physics, Saupfercheckweg 1, 69117 Heidelberg (Germany); Chlouba, K. [Czech Technical University, Prague, Brehov 7, 11519 Prague 1 (Czech Republic); and others

    2016-09-21

    We present here the first results obtained employing the Timepix3 for the detection and tagging of annihilations of low energy antiprotons. The Timepix3 is a recently developed hybrid pixel detector with advanced Time-of-Arrival and Time-over-Threshold capabilities and has the potential of allowing precise kinetic energy measurements of low energy charged particles from their time of flight. The tagging of the characteristic antiproton annihilation signature, already studied by our group, is enabled by the high spatial and energy resolution of this detector. In this study we have used a new, dedicated, energy selection beamline (GRACE). The line is symbiotic to the AEgIS experiment at the CERN Antiproton Decelerator and is dedicated to detector tests and possibly antiproton physics experiments. We show how the high resolution of the Timepix3 on the Time-of-Arrival and Time-over-Threshold information allows for a precise 3D reconstruction of the annihilation prongs. The presented results point at the potential use of the Timepix3 in antimatter-research experiments where a precise and unambiguous tagging of antiproton annihilations is required.

  10. "Den onde kvinde"

    DEFF Research Database (Denmark)

    Holst, Søren

    2002-01-01

    Et af Dødehavsskrifterne, af den første udgiver kaldet "Den onde kvindes rænker" (4Q184), beskriver en svigefuld kvinde, der lokker fromme mænd i fordærv. Artiklen gennemgår tekstens fortolkningshistorie og påviser den rolle, det har spillet for læsningen, at teksten a priori er blevet opfattet s...

  11. Den inkluderende skole

    DEFF Research Database (Denmark)

    Hedegaard Hansen, Janne

    2009-01-01

    Artiklen tager afsæt i en forståelse af inklusion som den enkelte elevs ret til deltagelse i de eksisterende fællesskaber, forstået som de læringsrum, der bedst muligt tilgodeser den enkelte elevs særlige behov. I artiklen diskuteres hvilke nødvendige forandringer det fordrer i den pædagogiske pr...

  12. Timepix3 as X-ray detector for time resolved synchrotron experiments

    Energy Technology Data Exchange (ETDEWEB)

    Yousef, Hazem, E-mail: hazem.yousef@diamond.ac.uk; Crevatin, Giulio; Gimenez, Eva N.; Horswell, Ian; Omar, David; Tartoni, Nicola

    2017-02-11

    The Timepix3 ASIC can be used very effectively for time resolved experiments at synchrotron facilities. We have carried out characterizations with the synchrotron beam in order to determine the time resolution and other characteristics such as the energy resolution, charge sharing and signals overlapping. The best time resolution achieved is 19 ns FWHM for 12 keV photons and 350 V bias voltage. The time resolution shows dependency on the photon energy as well as on the chip and acquisition parameters. - Highlights: • An estimate time resolution of the Timepix3 is produced based on the arrival time. • At high resolution, the time structure of the DLS synchrotron beam is resolved. • The arrival time information improves combining the charge split events. • The results enable performing a wide range of time resolved experiments.

  13. Test beam analysis of ultra-thin hybrid pixel detector assemblies with Timepix readout ASICs

    CERN Document Server

    Alipour Tehrani, Niloufar; Dannheim, Dominik; Firu, Elena; Kulis, Szymon; Redford, Sophie; Sicking, Eva

    2016-01-01

    The requirements for the vertex detector at the proposed Compact Linear Collider imply a very small material budget: less than 0.2% of a radiation length per detection layer including services and mechanical supports. We present here a study using Timepix readout ASICs hybridised to pixel sensors of 50 − 500 μm thickness, including assemblies with 100 μm thick sensors bonded to thinned 100μm thick ASICs. Sensors from three producers (Advacam, Micron Semiconductor Ltd, Canberra) with different edge termination technologies (active edge, slim edge) were bonded to Timepix ASICs. These devices were characterised with the EUDET telescope at the DESY II test beam using 5.6 GeV electrons. Their performance for the detection and tracking of minimum ionising particles was evaluated in terms of charge sharing, detection efficiency, single-point resolution and energy deposition.

  14. Den katolske kirke

    DEFF Research Database (Denmark)

    Olden-Jørgensen, Sebastian

    2009-01-01

    En kort gennemgang af den katolske kirkes kirkerum, ritualer, selvforståelse og syn på andre kristne efterfulgt af 16 forskellige kildetekster til belysning og uddybning af emnerne. Bogen omfatter tilsvarende afsnit om de ortodokse kirker og om folkekirken. Den er beregnet til gymnasium og HF....

  15. Den lille levnedsmiddeltabel

    DEFF Research Database (Denmark)

    Saxholt, Erling; Fagt, Sisse; Matthiessen, Jeppe

    Den lille levnedsmiddeltabel er en oversigt over indholdet af næringsstoffer i næsten 600 af de mest anvendte fødevarer i den danske kost. Herudover rummer bogen anvisninger til anvendelsen af fødevaredata....

  16. Den moderate revolution

    DEFF Research Database (Denmark)

    Larsen, Bøje

    "normale" industrivirksomheder, men den er absolut set begrænset. Årsagerne til denne kun "moderate revolution" af organisationsformerne diskuteres: Er det fordi klassisk organisation og social nærkontakt er nødvendig i den nye økonomi, eller er det manglende fantasi og tryghedsbehov? Begge muligheder...

  17. Miniaturized X-ray telescope for VZLUSAT-1 nanosatellite with Timepix detector

    International Nuclear Information System (INIS)

    Baca, T.; Stehlikova, V.; Urban, M.; Nentvich, O.; Blazek, M.; Platkevic, M.; Jakubek, J.; Inneman, A.; McEntaffer, R.; Daniel, V.

    2016-01-01

    We present the application of a Timepix detector on the VZLUSAT-1 nanosatellite. Timepix is a compact pixel detector (256×256 square pixels, 55×55 μm each) sensitive to hard X-ray radiation. It is suitable for detecting extraterrestrial X-rays due to its low noise characteristics, which enables measuring without special cooling. This project aims to verify the practicality of the detector in conjunction with 1-D Lobster-Eye optics to observe celestial sources between 5 and 20 keV. A modified USB interface (developed by IEAP at CTU in Prague) is used for low-level control of the Timepix. An additional 8-bit Atmel microcontroller is dedicated for commanding the detector and to process the data onboard the satellite. We present software methods for onboard post-processing of captured images, which are suitable for implementation under the constraints of the low-powered embedded hardware. Several measuring modes are prepared for different scenarios including single picture exposure, solar UV-light triggered exposure, and long-term all-sky monitoring. The work has been done within Medipix2 collaboration. The satellite is planned for launch in April 2017 as a part of the QB50 project with an end of life expectancy in 2019.

  18. Denver District Laboratory (DEN)

    Data.gov (United States)

    Federal Laboratory Consortium — Program CapabilitiesDEN-DO Laboratory is a multi-functional laboratory capable of analyzing most chemical analytes and pathogenic/non-pathogenic microorganisms found...

  19. Den signede dag

    DEFF Research Database (Denmark)

    Balslev-Clausen, Peter

    2010-01-01

    Artiklen gennemgår de tre middelalderlige versioner af den fællesnordiske dagvise fra 14. århundrede og gør rede for salmens tekst- og receptionshistorie i Dansk tradition.......Artiklen gennemgår de tre middelalderlige versioner af den fællesnordiske dagvise fra 14. århundrede og gør rede for salmens tekst- og receptionshistorie i Dansk tradition....

  20. Den antikke katapults udvikling

    DEFF Research Database (Denmark)

    Paasch, Kasper

    2011-01-01

    Hvordan bygger man en katapult? Dette spørgsmål belyses ved at se på den græske og romerske katapults udviklingshistorie samt på den forskningshistoriske tilgang til emnet, hovedsageligt set ud fra et ingeniørmæssig/matematisk synspunkt. Katapulten menes opfundet år 399 f.Kr. og blot ca. 120-150 ...

  1. Dens invaginatus: a case report.

    Science.gov (United States)

    Choudhari, Shantanu; Joshi, Saurabh; Patil, Namrata; Kalyan, Sai

    2013-03-01

    Dens invaginatus, also known as dens in dente, is a rare anomaly affecting human dentition. The condition results in invagination of an amelodental structure within the pulp. This case report discusses the current management protocol of dens invaginatus as demonstrated in an adolescent female and describes treatment options. As with most conditions, early diagnosis and preventive measures help minimize complications in dens invaginatus cases.

  2. Den Russiske Revolution

    DEFF Research Database (Denmark)

    Den Russiske Revolution er en af de mest afgørende politiske og sociale begivenheder i det 20. århundredes historie. Den skabte de ideologiske og geopolitiske parametre, der dominerede verden frem til 1991 - og på mange måder stadig gør det. Fortolkningen af Den Russiske Revolution har været et...... afgørende stridspunkt i det 20. århundredes politiske og filosofiske diskussioner. I denne bog gives der plads til en række af revolutionens egne stemmer. Bogen indeholder en lang række primærtekster fra Den Russiske Revolution - fra den første revolution i 1905 og frem til nedkæmpelsen af Kronstadt......-oprøret i 1921, med fokus på revolutionsåret 1917. Sammen med revolutionens artikler, bøger, dekreter, taler, digte og slagord indeholder bogen en introduktion og en tidslinje, der giver læseren overblik over de historiske begivenheder og idémæssige strømninger, der udgjorde Den Russiske Revolution....

  3. Den teoretiske side

    DEFF Research Database (Denmark)

    Bengtsson, Mette

    2013-01-01

    Hvis man bruger dem dygtigt og raffineret, kan rim og rytme have en overbevisende virkning på publikum. Men der er fare for at det bliver påtaget, påklistret og for meget, og så risikerer man den modsatte effekt......Hvis man bruger dem dygtigt og raffineret, kan rim og rytme have en overbevisende virkning på publikum. Men der er fare for at det bliver påtaget, påklistret og for meget, og så risikerer man den modsatte effekt...

  4. Den udenlandske udtales finurligheder

    DEFF Research Database (Denmark)

    Davidsen-Nielsen, Niels

    2017-01-01

    Eftertanken. Det er ikke altid nemt at tale om store, internationale kunstnere som Mozart eller Gabriel García Márquez. For hvordan skal den danske mund udtale z'et i Mozart og lægge trykket i García?......Eftertanken. Det er ikke altid nemt at tale om store, internationale kunstnere som Mozart eller Gabriel García Márquez. For hvordan skal den danske mund udtale z'et i Mozart og lægge trykket i García?...

  5. Efterskrift til den reviderede udgave

    DEFF Research Database (Denmark)

    Nielsen, Carsten Fogh

    2017-01-01

    Opsummering af tendenser og udviklingstræk inden for den nyere forskning i Kants historiefilosofi.......Opsummering af tendenser og udviklingstræk inden for den nyere forskning i Kants historiefilosofi....

  6. Den unge Burkes Satire

    DEFF Research Database (Denmark)

    Ørndorf, Steen

    Edmund Burke (1730-1797) er i nyere tid blevet politisk ikon, kendt som konservatismens fader. Berømmelsen skyldes hovedværket fra 1790, Reflections on the Revolution in France, som er et angreb på den franske revolution. Ungdomsarbejdet A Vindication of Natural Society er fra 1756 og har status ...

  7. Den interkonfessionelle dialog

    DEFF Research Database (Denmark)

    Pedersen, Else Marie Wiberg

    2006-01-01

    På baggrund af en gennemgang af det 20. århundredes økumeniske hermeneutik, foreslås det i denne artikel, at den økumeniske dialog (et ord, som oversættes forskelligt af de forskellige konfessioner) erstattes af en økumenisk diskurs (jf. Michel de Certau og Lukas Vischer). Der plæderes således...

  8. Den danske regionskonstruktion

    DEFF Research Database (Denmark)

    Klausen, Kurt Klaudi; Christoffersen, Henrik

    Region Midtjylland er i centrum for analysen men den omfatter også regionsdannelsen i almindelighed. Der anlægges i analysen på samme tid et politologisk, organisationsteoretisk og økonomisk resonnement. Regionsdannelsen finder sted på baggrund af de setup Strukturreformen har sat, men udfoldes p...

  9. Den borgerlige orden

    DEFF Research Database (Denmark)

    Forskningsbaseret antologi om forholdet mellem den borgerlige orden og kultur. I bogen diskuterer 12 yngre konservative og liberale skribenter det kulturelle grundlag for en borgerlig orden baseret på frihed, tillid og velstand. Her er essays om religion, marked, sammenhængskraft, retssamfund...

  10. Den materielle drejning

    DEFF Research Database (Denmark)

    Skiveren, Tobias; Gregersen, Martin

    2015-01-01

    Ved at trække på en række forskellige tænkere som Jane Bennett, Arne Næss, Donna Haraway og Karan Barad relaterer artiklen den såkaldte materielle drejning til tre filosofisk-teoretiske nyorienteringer: økokritik, det posthumane og kropsmaterialisme. Tesen er, at interaktionenen mellem disse...

  11. Den offentlige driftsorganisation

    DEFF Research Database (Denmark)

    Voxted, Søren

    2010-01-01

    styringsmodel med dens klare rollefordelinger til en mere fl eksibel struktur. Det er artiklens formål at opstille en model for, hvordan denne driftsorganisation ser ud strukturelt. Her udgør det artiklens tese, at der er skabt en driftsorganisation uden klare og markante positioner. Mest tydeligt kommer dette...

  12. Den menneskelige eksistens

    DEFF Research Database (Denmark)

    tilværelse. Dermed tilbyder den et bedre grundlag for at forstå fremtrædende kultursociologiske og socialpsykologiske problemer som identitetsusikkerhed, angst og raseri såvel som frigørende muligheder for engagement og kreativitet. Foruden originale tekster af Merleau-Ponty, Ricœur og Waldenfels rummer...

  13. Den sundhedsvidenskabelige opgave

    DEFF Research Database (Denmark)

    Lindahl, Marianne Pia; Juhl, Carsten Bogh

    troværdigheden af sine resultater. Bogen er opdateret, så den refererer til Microsoft Office 2013, og giver instruktioner og tips til: • Hvordan man bruger Word til hjælp med indholdsfortegnelse, overskrifter og korrektur • Hvordan man bruger Word til hjælp med diagrammer og tabeller• Hvordan man bruger Excel...

  14. Den kinesiske krimi

    DEFF Research Database (Denmark)

    Hansen, Kim Toft

    2011-01-01

    retssag på dansk. Betegnelserne krimi eller det engelske crime fiction bruges sjældent på en tilsvarende måde på kinesisk, selvom udtrykket findes (zuian xiaoshuo). Traditionelt bruges i stedet gongan eller gongan wenxue, der hhv. betyder retssag og retssagslitteratur, hvor det tætteste den vestlige...

  15. Den postmoderne konstruktivismes inkongruenser

    DEFF Research Database (Denmark)

    Cristoffanini, Pablo Rolando

    2011-01-01

    europæiske intellektuelle og akademikere gjorde teorierne og ideerne om underudvikling og afhængighed, der stammede fra Latinamerika, til deres egne. Også i den sidste tid har latinamerikanske intellektuelle, som fx Nestor García Canclini, haft indflydelse i Europa og USA med sin teori om hybriditet og...

  16. Den moderne bevidstheds katedral

    DEFF Research Database (Denmark)

    Ostenfeld Pedersen, Simon

    2002-01-01

    Interview med idéhistorikeren Dorthe Jørgensen der under overskriften ”Den moderne bevidstheds katedral” blotlægger hendes mangeårige arbejde med Hegel, og hvor hun giver en række relevante bud på en aktualiserende Hegel-læsning centreret omkring felter som metafysik, historiefilosofi og æstetik....

  17. Time-resolved ion imaging at free-electron lasers using TimepixCam.

    Science.gov (United States)

    Fisher-Levine, Merlin; Boll, Rebecca; Ziaee, Farzaneh; Bomme, Cédric; Erk, Benjamin; Rompotis, Dimitrios; Marchenko, Tatiana; Nomerotski, Andrei; Rolles, Daniel

    2018-03-01

    The application of a novel fast optical-imaging camera, TimepixCam, to molecular photoionization experiments using the velocity-map imaging technique at a free-electron laser is described. TimepixCam is a 256 × 256 pixel CMOS camera that is able to detect and time-stamp ion hits with 20 ns timing resolution, thus making it possible to record ion momentum images for all fragment ions simultaneously and avoiding the need to gate the detector on a single fragment. This allows the recording of significantly more data within a given amount of beam time and is particularly useful for pump-probe experiments, where drifts, for example, in the timing and pulse energy of the free-electron laser, severely limit the comparability of pump-probe scans for different fragments taken consecutively. In principle, this also allows ion-ion covariance or coincidence techniques to be applied to determine angular correlations between fragments.

  18. Den Danske Løsning

    DEFF Research Database (Denmark)

    Langsted, Lars Bo

    1999-01-01

    Artiklen rummer en (foreløbig) kommentar til den såkaldte Hafnia-dom, hvor Den Danske Bank og revisorerne blev fundet erstatningsansvarlige for et misvisende prospekt i forbindelse med en fondsbørsemission.......Artiklen rummer en (foreløbig) kommentar til den såkaldte Hafnia-dom, hvor Den Danske Bank og revisorerne blev fundet erstatningsansvarlige for et misvisende prospekt i forbindelse med en fondsbørsemission....

  19. Hvad karakteriserer den netbaserede vejledning?

    DEFF Research Database (Denmark)

    Kjeldsen, Lars Peter

    2008-01-01

    Hensigten med artiklen er at bidrage til forståelsen af sider ved den netbaserede vejledning. Fremgangsmåden vil være: •Først at beskrive og diskutere, hvorledes jeg forstår det virtuelle læringsmiljø, herunder en afklaring af, hvad der karakteriserer den netbaserede vejledning. •Dernæst gennem e...

  20. Kollegaerne er den nye chef

    DEFF Research Database (Denmark)

    Fugl, Marie

    2008-01-01

    Den tid, hvor chefen var den, der delte skideballer ud, er slut. Rollen som 'bad cop' er overtaget af kollegateamet, der med hård hånd sørger for, at den enkelte yder sin del. Udgivelsesdato: November...

  1. Den sociale stofmisbrugsbehandling. Del 4

    DEFF Research Database (Denmark)

    Sørensen, Maren

    Dette er den fjerde delrapport i en rapportserie om den sociale stofmisbrugsbehandling i Danmark. Rapportserien bygger på en omfattende undersøgelse, der blev fortaget i perioden december 2007 til maj 2009. Denne delrapport stiller skarpt på kvalitetsudvikling og kvalitetsstandarder i den sociale...

  2. Dannelsen af den ansvarlige elev

    DEFF Research Database (Denmark)

    Larsen, Jesper

    2010-01-01

    Denne artikel handler om den del af lærergerningen, der har at gøre med udarbejdelse af elevplaner. Der tages udgangspunkt i en foucaultsk forståelse, hvor beskrivelsen af den enkelte elev udtrykker et særligt normativt ideal om, hvilke former for elevhed der er de ønskværdige i den danske...

  3. dens festival

    DEFF Research Database (Denmark)

    Agerholm, Frank Juul

    2012-01-01

    Som den italienske antropolog og folklorist Alessandro Falassi gør opmærksom på i antologien Time out of Time: Essays on the Festival, så er det sparsomt, hvad der er gjort af teoretiske forsøg på definere, hvad en festival er. Det står altså skidt til med et begreb om festivalen, og dette endog...... til trods for, at der er forsket i festivalen som fænomen siden det 19. århundrede – tilmed inden for en række forskellige faglige discipliner såsom religionsvidenskab, sociologi, antropologi, folklore m.fl. Endnu mere sparsomt må det vel så også stå til med bud på, hvad fødens festival er for en...

  4. Den fatale kollision?

    DEFF Research Database (Denmark)

    Thyssen, Ole

    2013-01-01

    Alle grene af samfundet trækker i retning af øget vækst, som skaber arbejdspladser og bedre forbrugsmuligheder. Men det kolliderer med en økologisk nødvendighed, der siger, at der er grænser for vækst. Hvorfra skal omstillingen hente sin energi, så den er mere end en uforpligtende dagdrøm?...

  5. Den Magiske Kugle

    DEFF Research Database (Denmark)

    Nørgaard, Bent

    2007-01-01

    og ikke skader kroppens sunde celler. Metoden går ud på at indkapsle kræftmedicin i bittesmå fedtkugler, såkaldt "magiske kugler". I forestillingen følger vi de magiske kuglers fantastiske rejse: Lige fra deres spæde fødsel som en vision fremsat af den tyske nobelprisvinder dr. Paul Ehrlich i...

  6. Den gamle verdens magi

    DEFF Research Database (Denmark)

    Holck, Jakob Povl

    I denne bog præsenterer forskningsbibliotekar cand.mag., ph.d. Jakob Povl Holck sjældne bøger og andre biblioteksmaterialer fra Herlufsholm-samlingen på Syddansk Universitetsbibliotek i Odense. Bogens form udgør en mosaik af værker i tekst og især billeder med speciel vægt på ’den videnskabelige ...

  7. Den Gode Historie

    DEFF Research Database (Denmark)

    Mogensen, T.E.

    Historie er] begejstret oplysningsarbejde. [...] [D]et spændende nye er konkordansen mellem rum og menneskesyn, som her kan opleves i en illustreret ordbog. Sætter man en plade med Bachs cembalo-suiter med deres fuga- og kanonsystem på undervejs, får man måske en yderligere eller inderligere dimension...... sandhed får lov at stå uimodsagt. I romanernes tætte væv synes alt at være til stede og trænge sig på samtidig. Skal man skrive dækkende om et så stort, vildtvoksende og vidt forgrenet værk, tage højde for de mange krydsforbindelser og belyse dem, kræver det en ganske særlig form: den encyklopædiske. Den...... tilbydes en litterær lystvandring ud over det sædvanlige. Anmelderne skrev:  Man kunne sige, at Den Gode Historie er litteraturanalysens svar på internettet i det kjærstadske cyberspace. Men modsat internettets anarki er der her en benhård og kyndig styring af linkenes sammenhæng, og samtidig har bogen...

  8. Measurement of secondary radiation during ion beam therapy with the pixel detector Timepix

    Science.gov (United States)

    Martišíková, Mária; Jakubek, Jan; Granja, Carlos; Hartmann, Bernadette; Opálka, Lukáš; Pospíšil, Stanislav; Jäkel, Oliver

    2011-11-01

    In ion beam therapy the finite range of the ion beams in tissue and the presence of the Bragg-peak are exploited. Unpredictable changes in the patient`s condition can alter the range of the ion beam in the body. Therefore it is desired to verify the actual ion range during the treatment, preferably in a non-invasive way. Positron emission tomography (PET) has been used successfully to monitor the applied dose distributions. This method however suffers from limited applicability and low detection efficiency. In order to increase the detection efficiency and to decrease the uncertainties, in this study we investigate the possibility to measure secondary charged particles emerging from the patient during irradiation. An initial experimental study to register the particle radiation coming out of a patient phantom during the therapy was performed at the Heidelberg Ion Beam Therapy Center (HIT) in Germany. A static narrowly-focused beam of carbon ions was directed into a head phantom. The emerging secondary radiation was measured with the position-sensitive Timepix detector outside of the phantom. The detector, developed by the Medipix Collaboration, consists of a silicon sensor bump bonded to a pixelated readout chip (256 × 256 pixels with 55 μm pitch). Together with the USB-based readout interface, Timepix can operate as an active nuclear emulsion registering single particles online with 2D-track visualization. In this contribution we measured the signal behind the head phantom and investigated its dependence on the beam energy (corresponding to beam range in water 2-30 cm). Furthermore, the response was measured at four angles between 0 and 90 degrees. At all investigated energies some signal was registered. Its pattern corresponds to ions. Differences in the total amount of signal for different beam energies were observed. The time-structure of the signal is correlated with that of the incoming beam, showing that we register products of prompt processes. Such

  9. Measurement of secondary radiation during ion beam therapy with the pixel detector Timepix

    International Nuclear Information System (INIS)

    Martišíková, Mária; Hartmann, Bernadette; Jäkel, Oliver; Jakubek, Jan; Granja, Carlos; Opálka, Lukáš; Pospíšil, Stanislav

    2011-01-01

    In ion beam therapy the finite range of the ion beams in tissue and the presence of the Bragg-peak are exploited. Unpredictable changes in the patient's condition can alter the range of the ion beam in the body. Therefore it is desired to verify the actual ion range during the treatment, preferably in a non-invasive way. Positron emission tomography (PET) has been used successfully to monitor the applied dose distributions. This method however suffers from limited applicability and low detection efficiency. In order to increase the detection efficiency and to decrease the uncertainties, in this study we investigate the possibility to measure secondary charged particles emerging from the patient during irradiation. An initial experimental study to register the particle radiation coming out of a patient phantom during the therapy was performed at the Heidelberg Ion Beam Therapy Center (HIT) in Germany. A static narrowly-focused beam of carbon ions was directed into a head phantom. The emerging secondary radiation was measured with the position-sensitive Timepix detector outside of the phantom. The detector, developed by the Medipix Collaboration, consists of a silicon sensor bump bonded to a pixelated readout chip (256 × 256 pixels with 55 μm pitch). Together with the USB-based readout interface, Timepix can operate as an active nuclear emulsion registering single particles online with 2D-track visualization. In this contribution we measured the signal behind the head phantom and investigated its dependence on the beam energy (corresponding to beam range in water 2–30 cm). Furthermore, the response was measured at four angles between 0 and 90 degrees. At all investigated energies some signal was registered. Its pattern corresponds to ions. Differences in the total amount of signal for different beam energies were observed. The time-structure of the signal is correlated with that of the incoming beam, showing that we register products of prompt processes. Such

  10. Analysis of painted arts by energy sensitive radiographic techniques with the Pixel Detector Timepix

    International Nuclear Information System (INIS)

    Zemlicka, J; Jakubek, J; Kroupa, M; Hradil, D; Hradilova, J; Mislerova, H

    2011-01-01

    Non-invasive techniques utilizing X-ray radiation offer a significant advantage in scientific investigations of painted arts and other cultural artefacts such as painted artworks or statues. In addition, there is also great demand for a mobile analytical and real-time imaging device given the fact that many fine arts cannot be transported. The highly sensitive hybrid semiconductor pixel detector, Timepix, is capable of detecting and resolving subtle and low-contrast differences in the inner composition of a wide variety of objects. Moreover, it is able to map the surface distribution of the contained elements. Several transmission and emission techniques are presented which have been proposed and tested for the analysis of painted artworks. This study focuses on the novel techniques of X-ray transmission radiography (conventional and energy sensitive) and X-ray induced fluorescence imaging (XRF) which can be realised at the table-top scale with the state-of-the-art pixel detector Timepix. Transmission radiography analyses the changes in the X-ray beam intensity caused by specific attenuation of different components in the sample. The conventional approach uses all energies from the source spectrum for the creation of the image while the energy sensitive alternative creates images in given energy intervals which enable identification and separation of materials. The XRF setup is based on the detection of characteristic radiation induced by X-ray photons through a pinhole geometry collimator. The XRF method is extremely sensitive to the material composition but it creates only surface maps of the elemental distribution. For the purpose of the analysis several sets of painted layers have been prepared in a restoration laboratory. The composition of these layers corresponds to those of real historical paintings from the 19 th century. An overview of the current status of our methods will be given with respect to the instrumentation and the application in the field of

  11. Den Danske Netordbog

    DEFF Research Database (Denmark)

    Bergenholtz, Henning; Vrang, Vibeke; Almind, Richard

    Denne danske ordbog er primært tænkt som hjælpeværktøj i forbindelse med tvivl og usikkerhed, når man skriver en dansk tekst. Den Danske Netordbog er en yderst omfattende ordbog med mere end 110.000 forskellige opslagsord og en lang række oplysninger, herunder grammatik, betydning, synonym (ord med...... samme betydning), antonym (ord med modsat betydning), orddannelse (i hvilke andre ord det pågældende ord er en del af), kollokationer (ordforbindelser), idiomer (fast udtryk med en særlig betydning) og ordsprog og citater....

  12. Krisen i den Britiske Union

    DEFF Research Database (Denmark)

    2010-01-01

    at betale for skotsk, walisisk og nordirsk selvbestemmelse. De tre store britiske partier er først lige begyndt at forholde sig til den krise der er for den Britiske Union og hvad de har tænkt sig at gøre for at løse problemerne vil vi vende tilbage til her i Orientering i den kommende tid....

  13. Evaluation of Timepix3 based CdTe photon counting detector for fully spectroscopic small animal SPECT imaging

    Science.gov (United States)

    Trojanova, E.; Jakubek, J.; Turecek, D.; Sykora, V.; Francova, P.; Kolarova, V.; Sefc, L.

    2018-01-01

    The imaging method of SPECT (Single Photon Emission Computed Tomography) is used in nuclear medicine for diagnostics of various diseases or organs malfunctions. The distribution of medically injected, inhaled, or ingested radionuclides (radiotracers) in the patient body is imaged using gamma-ray sensitive camera with suitable imaging collimator. The 3D image is then calculated by combining many images taken from different observation angles. Most of SPECT systems use scintillator based cameras. These cameras do not provide good energy resolution and do not allow efficient suppression of unwanted signals such as those caused by Compton scattering. The main goal of this work is evaluation of Timepix3 detector properties for SPECT method for functional imaging of small animals during preclinical studies. Advantageous Timepix3 properties such as energy and spatial resolution are exploited for significant image quality improvement. Preliminary measurements were performed on specially prepared plastic phantom with cavities filled by radioisotopes and then repeated with in vivo mouse sample.

  14. Crowned dens syndrome

    Directory of Open Access Journals (Sweden)

    Norma Belfiore

    2012-10-01

    Full Text Available Introduction Microcrystalline deposition in peri-odontoid articular structures is mainly responsible for acute or chronic cervical pain and is known as “crowned dens syndrome”.Materials and methods We described two cases of acute cervical pain associated with onset of fever and peripheral acute monoarthritis. Cervical computed tomography (CT scan showed linear calcification of the retrodens ligament and calcium pyrophosphate dehydrate (CPPD crystals were found in synovial fluid of inflamed joints. Both patients were treated with anti-inflammatory drugs and colchicine.Discussion Calcium depositions around the odontoid process of the axis can be occasionally detected by radiological studies. They are frequently asymptomatic but sometimes can be associated with severe neurological abnormalities, fever and acute neck pain. CPPD crystals are usually deposited in joints and bursae but occasionally can disrupt these anatomical confines and deposit in periarticular tissues, sometimes forming large masses confused with tumours.Conclusions Acute onset of cervical neck pain associated with elevation of inflammatory indicators and/or signs of cervical myelopathy should suggest CT scans searching for microcrystal depositions in the peryodonthoid tissue. Differential diagnosis of fever of unknown origin (FUO should include crowned dens syndrome specially in the elderly after exclusion of several endocrine or metabolic disorders, infection diseases (meningitis, arthritis (psoriatic arthritis and ankylosing spondylitis and tumours (chordoma, meningioma, osteoblastoma.

  15. Sygehusene i den islamiske verden i den klassiske tid

    OpenAIRE

    Provencal, Philippe

    2014-01-01

    Et af de væsentlige punkter, hvor den arabiske medicin udmærker sig i forhold til tidligere tiders medicin var i oprettelsen og organiseringen af regelrette sygehuse. Artiklen beskriver sygehusenes oprindelse, plads og funktion i den klassiske arabiske kultur (750-1500)

  16. Den danske taxonliste for karplanter

    DEFF Research Database (Denmark)

    Wind, Peter

    2017-01-01

    Karplanternes navngivning og slægtskabsforhold har løbende ændret sig siden Linné (1707-1778) lagde grunden til den nomenklatur og systematik, som nutidens taksonomi bygger på. Han var samtidig fader til den toledede navngivning, dvs. at enhver levende organisme fik et ’latinsk’ slægts- og artsna...

  17. Velkommen til den posthumane tilstand

    DEFF Research Database (Denmark)

    Wamberg, Jacob

    2015-01-01

    Hvorfor er moderne kunst så insisterende mærkværdig? Fordi den udforsker en posthuman tilstand, som bliver stadig mere påtrængende.......Hvorfor er moderne kunst så insisterende mærkværdig? Fordi den udforsker en posthuman tilstand, som bliver stadig mere påtrængende....

  18. Hyldest til den destruktive feminist

    DEFF Research Database (Denmark)

    Hansen, Brian Benjamin

    2017-01-01

    Den destruktive feminist er kommet for at uddele røvfulde og slikkepinde – og hun er netop løbet tør for slikkepinde.......Den destruktive feminist er kommet for at uddele røvfulde og slikkepinde – og hun er netop løbet tør for slikkepinde....

  19. Litteratur i den argumentative ret

    DEFF Research Database (Denmark)

    Jørgensen, Stine

    2007-01-01

    Med udgangspunkt i den litterære rett, slik som denne er udviklet af den amerikanske retsfilosof Martha Nussbaum, argumentere de for, at litteraturen er velegnet som en metode til at opnå menneskelig forståelse. Som led i denne problemstillingen behandles følelsenes plads i retsvidenskaben. Endelig...

  20. Tidsrejse i den didaktiske Bermudatrekant

    DEFF Research Database (Denmark)

    Henriksen, Carsten

    2014-01-01

    Gudinden Athene var blandt de første, der praktiserede den: fagdidaktikken. Siden har den stolte disciplin overlevet mangen en elev og underviser. Tag med på en fagdidaktisk rejse, der kaster anker centrale steder i fagdidaktikkens historie fra Homer til folkeskolereform....

  1. Den naturlige tillid og tilknytning

    DEFF Research Database (Denmark)

    Bo, Inger Glavind

    2008-01-01

    Giddens og Johan Bowlbys forståelser af den fundamentale tillid eller sikker base kædes tilliden sammen med det spæde barns tilknytning til sine primære omsorgspersoner, da det er her fundamentet for senere tilknytningsadfærd og tillidsrelationer etableres som en integreret del af den naturlige...

  2. Stordriftsfordele i den danske banksektor?

    DEFF Research Database (Denmark)

    Kristensen, Troels

    2008-01-01

    Dette er en empirisk undersøgelse af skalaegenskaber (economies of scale) i den danske banksektor baseret på cross-section data. Banksektorens omkostningsfunktion er estimeret vha. en translogomkostningsfunktion og OLS-regression. Ud fra den estimerede omkostningsfunktion er skalaegenskaberne...

  3. Tillid i den finansielle sektor

    DEFF Research Database (Denmark)

    Rimmer, Nina Røhr; Nielsen, Sara Møller; Benediktsdottir, Elisabet

    2014-01-01

    lønsomhed. Konklusionerne er opsamlet i 2 analysedele, den første med fire overskrifter: Tillid, Medie & politisk indflydelse, Forholdet mellem kunden og rådgiveren samt Kommunikation – og den anden i en SWOT model. Nogle af hovedkonklusionerne er, at kunderne ikke har mistet tillid til hverken deres...

  4. Den medicinal-industrielle logik

    DEFF Research Database (Denmark)

    Børsen, Tom

    2008-01-01

    Et kig på medicinalindustrien og den logik der styrer udviklingen af nye lægemidler. Antagelsen er, at der også eksisterer et medicinalindustrielt kompleks, bestående af ledende industrifolk, læger, forskere og regeringsembedsmænd, der alle har kommercielle interesser i den herskende lægemiddeltæ...

  5. Dorte Nors "Den store tomat"

    DEFF Research Database (Denmark)

    Michelsen, Jimmi

    2017-01-01

    Tekstgennemgang og undervisningsforløb til Dorte Nors "Den store tomat". Undervisningsforløbet er henvendt til elever i folkeskolens udskoling......Tekstgennemgang og undervisningsforløb til Dorte Nors "Den store tomat". Undervisningsforløbet er henvendt til elever i folkeskolens udskoling...

  6. Dens invaginatus (Type III B).

    Science.gov (United States)

    Kallianpur, Shreenivas; Sudheendra, Us; Kasetty, Sowmya; Joshi, Prathamesh

    2012-05-01

    Dens invaginatus or 'dens in dente' is a developmental malformation of the tooth resulting from infolding of the dental papilla before calcification. This article presents a case of dens invaginatus occurring in maxillary right lateral incisor of a 45-year-old male patient. The patient presented with pain and clinically missing maxillary right canine. The tooth was found to be non-vital. Radiographic examination revealed the tooth-in-tooth appearance of lateral incisor with a dilated pulp chamber. The crown of impacted canine was found within the pulp chamber of lateral incisor. Owing to this unique clinical presentation, both the lateral incisor and the impacted canine were extracted. Histopathologic examination confirmed the diagnosis of Dens invaginatus Type III B. A brief review on etiopathogenesis, radiographic features and treatment of dens invaginatus has also been included.

  7. Den narrative tilgang

    DEFF Research Database (Denmark)

    Bo, Inger Glavind

    2016-01-01

    I kapitlet gennemgås en socialkonstruktivistisk forståelse af narrativer. I kapitlet vil jeg gennemgå centrale teoretiske pointer, der samlet set er grundlæggende for en social konstruktivistisk forståelse af narrativer for herved at udfolde forståelsen af den narrative tilgang og desuden...... tydeliggøre, hvordan tilgangen er forbundet med en særlig forståelse af identitetsskabelse. Der er tale om pointer der almindeligvis forbindes med ”små fortællinger” i form af længere identitetsfortællinger og narrative interviews. Kapitlet gennemgår således centrale inspirationskilder og teoretiske pointer...

  8. Den iscenesatte folkelighed

    Directory of Open Access Journals (Sweden)

    Néstor Garcia Canclini

    1994-09-01

    Full Text Available Hvad er "det folkelige" og hvad er "folkekultur"? Néstor Garcia Canclini har i denne artikel sat sig for at dekonstruere begrebet "det folkelige" og beskrive den måde, forskellige grupper bruger og misbruger begrebet på. Han analyserer tre fremherskende idéer om folkelighed: folkloristernes romantiske idé om det oprindelige, der blev ødelagt af massekulturen, massemediernes popularitetsbegreb og endelig populisternes - både de højre- og venstreorienteredes - iscenesættelse af folkeligheden. Desuden ser han på to marxistiske skolers opfattelse af forholdet mellem de dominerende og undertrykte klasser og forskellige definitioner af folkelig- hed. Ligesom Anamaria Fadul argumenterer Canclini for nødvendigheden af en ny, tværdiciplinær forskning, som opfanger kompleksitet og flerty- digheder i forholdet mellem de undertrykte og dominerende og ser "det folkelige" som en tragisk komedie med modsætninger og flertydighed snarere end en evigt fremadskrivende episk fortælling. Artiklen er en forkortet udgave af kapitel 5 i Canclinis bog fra 1989: "Culturas Hibridas - Estrategias para entrat y salir de la modernidad. Mexico: Grijalbo.

  9. Timepix and FitPix detection system for RBS/C materials analysis

    CERN Document Server

    David-Bosne, Eric; Wahl, Ulrich

    This thesis reports the implementation of a Timepix position sensitive detector in a ion beam facility with a 0.5 mm collimated beam of 2MeV 1H$^{+}$ and 4He$^{+}$ for use in Rutherford Back-scattering Spectrometry channeling (RBS/C). A complete description is given of the methodology used for energy calibration, RBS data analysis and simulation with the FLUX Monte Carlo simulation program. Energy calibration was performed with internal test pulses and resulting resolution and accuracy were verified in two ways. The first time using a triple alpha source with the isotopes $^{239}$Pu, $^{241}$Am and $^{244}$Cm and secondly using a RBS spectrum of a thin film sample of Au/SiO$_{2}$/C. Setup characterization for channeling measurements was performed using single crystals of Si, 6H$^{-}$SiC and SrTiO$_{3}$. An energy resolution of 47.2 keV at 1862 keV for He$^{+}$ and an angular resolution of 0.11 (standard deviation) was achieved. Count rates as high as 2kHz were achieved with a frame rate of 15 frames/s. Higher...

  10. Asic developments for radiation imaging applications: The medipix and timepix family

    Science.gov (United States)

    Ballabriga, Rafael; Campbell, Michael; Llopart, Xavier

    2018-01-01

    Hybrid pixel detectors were developed to meet the requirements for tracking in the inner layers at the LHC experiments. With low input capacitance per channel (10-100 fF) it is relatively straightforward to design pulse processing readout electronics with input referred noise of ∼ 100 e-rms and pulse shaping times consistent with tagging of events to a single LHC bunch crossing providing clean 'images' of the ionising tracks generated. In the Medipix Collaborations the same concept has been adapted to provide practically noise hit free imaging in a wide range of applications. This paper reports on the development of three generations of readout ASICs. Two distinctive streams of development can be identified: the Medipix ASICs which integrate data from multiple hits on a pixel and provide the images in the form of frames and the Timepix ASICs who aim to send as much information about individual interactions as possible off-chip for further processing. One outstanding circumstance in the use of these devices has been their numerous successful applications, thanks to a large and active community of developers and users. That process has even permitted new developments for detectors for High Energy Physics. This paper reviews the ASICs themselves and details some of the many applications.

  11. Calibration of ultra-thin hybrid pixel detector assemblies with Timepix readout ASICs

    CERN Document Server

    AUTHOR|(SzGeCERN)734627; Arfaoui, Samir; Benoit, Mathieu; Celeste, Damiano; Dannheim, Dominik; Pfleger, Florentina; Redford, Sophie

    2015-01-01

    In the framework of vertex detector R&D for a future Compact Linear Collider, the charac- terisation of ultra-thin hybrid pixel detector assemblies comprising 50 − 300 μm thick silicon sensors and Timepix readout ASICs is underway through beam tests at DESY and CERN. The work presented here supports the beam test data analysis by providing an energy calibra- tion of certain assemblies, so giving access to energy measurements in addition to recorded Time Over Threshold counts. Photons from a variety of radioactive sources and X-ray fluorescence are used to measure the response of the assemblies in the region of 3 − 60 keV. Threshold measurements are also performed. Global and pixel-by-pixel calibrations of the assemblies are parametrised and the uniformity of the response of the pixel matrices are discussed. Data samples recorded in beam tests are calibrated and the resulting energy spectra presented. For the first time calibration parameters are estimated for two 50 μm thick sensors which are forese...

  12. Den Blå Drage

    DEFF Research Database (Denmark)

    Ingerslev, Gitte Holten

    Denne publikation i serien Læselyst tjener tre formål. Den evaluerer læseprojektet Den blå drage i efteråret 2004 på Byskolen i Svendborg ? et projekt ledet af forfatteren Josefine Ottesen. Desuden gøres der rede for nogle af de teorier der støtter og begrunder arbejdsmåde og resultater i projektet...

  13. Events i den globale bykonkurrence

    DEFF Research Database (Denmark)

    Østergaard, Katrine

    2005-01-01

    Paper til ph.d. workshop, d. 9. december 2005. Dette paper beskriver, hvorfor og hvordan events kan bruges som strategi for byplanlægning og byudvikling i den globale bykonkurrence.......Paper til ph.d. workshop, d. 9. december 2005. Dette paper beskriver, hvorfor og hvordan events kan bruges som strategi for byplanlægning og byudvikling i den globale bykonkurrence....

  14. Den tidslogiske analyse af determinismeproblemet

    DEFF Research Database (Denmark)

    Øhrstrøm, Peter

    2010-01-01

    Artiklen diskuterer den filosofiske tidslogik med særligt henblik på A.N. Priors bidrag hertil. Det logiske determinismeproblem benyttes som gennemgående eksempel. Det vises endvidere, hvordan tidslogikken kan udnyttes til at analysere de logisk mulige positioner i en videnskabelig eller videnska...... videnskabsteoretisk debat. Her bruges den videnskabshistorisk betydende diskussion mellem Charles Darwin og Asa Gray som eksempel....

  15. Den litterære blog

    DEFF Research Database (Denmark)

    Serup, Martin Glaz; Kromann, Thomas Hvid

    2012-01-01

    Hvad er en litterær blog og hvordan arbejder den som en aktiv del af den litterære offentlighed.......Hvad er en litterær blog og hvordan arbejder den som en aktiv del af den litterære offentlighed....

  16. Double Dens Invaginatus: Report of Three Cases

    OpenAIRE

    Zengin, A. Zeynep; Sumer, A. Pinar; Celenk, Peruze

    2009-01-01

    Dens invaginatus results from an infolding of the outer surface of a tooth. The clinical importance of dens invaginatus results from the risk of pulpal disease. So, all clinicians should be aware of this anomaly. The presence of double dens invaginatus is extremely rare. This article presents three cases of double dens invaginatus in permanent maxillary lateral incisors, one with preventive restoration on its palatal surface. They were classified as double dens invaginatus because of two enam...

  17. Analysis of bias voltage scan data recorded with hybrid Timepix1 silicon pixel assemblies at the DESY testbeam

    CERN Document Server

    Maimon, Shir

    2014-01-01

    This report will present results from the analysis of bias voltage scans in Timepix1 testbeam data. Three assemblies of varying sensor thickness were used to collect data. The effect of the bias voltage on charge sharing, in particular cluster size, was investigated and found to have a significant impact. The effect of the bias voltage on energy collection was also studied, leading to estimates for the depletion voltage, donor concentration, mobility and resistivity of each assembly. Finally, the effect of the bias voltage on the two-hit cluster resolution and detection efficiency was investigated. This report contains extracts from a longer document (LCD-OPEN-2014-001).

  18. A fast embedded readout system for large-area Medipix and Timepix systems

    Science.gov (United States)

    Brogna, A. S.; Balzer, M.; Smale, S.; Hartmann, J.; Bormann, D.; Hamann, E.; Cecilia, A.; Zuber, M.; Koenig, T.; Zwerger, A.; Weber, M.; Fiederle, M.; Baumbach, T.

    2014-05-01

    In this work we present a novel readout electronics for an X-ray sensor based on a Si crystal bump-bonded to an array of 3 × 2 Medipix ASICs. The pixel size is 55 μm × 55 μm with a total number of ~ 400k pixels and a sensitive area of 42 mm × 28 mm. The readout electronics operate Medipix-2 MXR or Timepix ASICs with a clock speed of 125 MHz. The data acquisition system is centered around an FPGA and each of the six ASICs has a dedicated I/O port for simultaneous data acquisition. The settings of the auxiliary devices (ADCs and DACs) are also processed in the FPGA. Moreover, a high-resolution timer operates the electronic shutter to select the exposure time from 8 ns to several milliseconds. A sophisticated trigger is available in hardware and software to synchronize the acquisition with external electro-mechanical motors. The system includes a diagnostic subsystem to check the sensor temperature and to control the cooling Peltier cells and a programmable high-voltage generator to bias the crystal. A network cable transfers the data, encapsulated into the UDP protocol and streamed at 1 Gb/s. Therefore most notebooks or personal computers are able to process the data and to program the system without a dedicated interface. The data readout software is compatible with the well-known Pixelman 2.x running both on Windows and GNU/Linux. Furthermore the open architecture encourages users to write their own applications. With a low-level interface library which implements all the basic features, a MATLAB or Python script can be implemented for special manipulations of the raw data. In this paper we present selected images taken with a microfocus X-ray tube to demonstrate the capability to collect the data at rates up to 120 fps corresponding to 0.76 Gb/s.

  19. Von den Veranschaulichungsmethoden in den Rundfunkpredigten von der Heiligkreuz- Kirche

    Directory of Open Access Journals (Sweden)

    Witold Ostafiński

    2004-12-01

    Full Text Available In der gegenwärtigen Verkündigung des Wortes Gottes spielt die Veranschaulichung der Überlieferung eine nicht zu überschätzende Rolle. Vor diesem Hintergrund wird es sehr wichtig, dass man den Predigern nicht nur auf die Funktion des Bildes in der Verkündigung, sondern auch auf die Art und Weise seines Entstehens auf der narrativen Ebene aufmerksam macht. Während die Kenner der Homiletik die Notwendigkeit des Auftretens der Bildeigenschaften in den Predigten betonen, erinnern sie gleichzeitig daran, dass der moderne, von der „Bild-Zivilisation“ gestaltete Mensch, „immer mehr sehen als hören“ möchte. Der vorliegende, die Rundfunkpredigten von der Heiligkreuz-Kirche analysierende Aufsatz, nimmt auf und bringt zugleich nahe die Problematik der Notwendigkeit des Bildes in der Wort-Gottes-Verkündigung. Der Artikel stellt die Erzählungsform als eine wichtige Möglichkeit der Glaubensüberlieferung dar, behandelt das Problem der Aktualisierung evangelischen Werte, bringt das von den Predigten gestaltete synästhetische Weltbild nahe und analysiert die Rolle des Zitats und Beispiels (exemplum bei der Gestaltung der Bildhaftigkeit einer Predigt. Darüber hinaus überprüft der Aufsatz in seinem letzten Teil die in den gegenwärtigen Rundfunkpredigten meist verwendeten Redefiguren

  20. Publikum svinger den retoriske taktstok

    DEFF Research Database (Denmark)

    Hansen, Jette Barnholdt

    2012-01-01

    Artiklen handler om revyvisen "Man binder os på mund og hånd" af Poul Henningensen med musik af Kai Normann Andersen, som oprindeligt var en del af den kulturradikale revykomedie Dyveke fra 1940, der bla. advokerede for seksuel frigørelse. Visen levede dog hurtigt sit eget liv uden for revyteatret...

  1. Multikultureller Wohnungsbau in den Niederlanden

    NARCIS (Netherlands)

    Meier, S.

    2012-01-01

    In den Niederlanden sind Immigranten längst eine Zielgruppe auf dem Wohnungsmarkt. Architekten und Wohnungsbaugesellschaften haben, so scheint es, zunehmend weniger Berührungsängste gegenüber nicht-westlichen Bautraditionen. Wohnanlagen wie „Le Medi" und „De Oriënt" könnten Modelle sein für die

  2. Multikultureller Wohnungsbau in den Niederlanden

    NARCIS (Netherlands)

    dr.ir. Sabine Meier

    2012-01-01

    In den Niederlanden sind Immigranten längst eine Zielgruppe auf dem Wohnungsmarkt. Architekten und Wohnungsbaugesellschaften haben, so scheint es, zunehmend weniger Berührungsängste gegenüber nicht-westlichen Bautraditionen. Wohnanlagen wie „Le Medi“ und „De Oriënt“ könnten Modelle sein für die

  3. Etikken i den maskerede by

    DEFF Research Database (Denmark)

    Liebst, Lasse Suonperä

    2009-01-01

    Artiklen problematiserer Zygmunt Baumans argument om, at æstetiseringen iden postmoderne by er uforenelig med en virksom etisk ansvarlighed for denfremmede i byen. Denne forståelse er kraftigt inspireret af Emmanuel Lévinas’fænomenologiske nærhedsetik, der forstår æstetik og etik som...... antagonistiskefænomener. Med afsæt i denne forståelse anser Bauman æstetiseringen af denAnden, som en maskering af det nøgne ansigt, der ifølge Lévinas er den etiskefordrings kilde. Hermed mødes den Anden ikke som et unikt menneske, mensnarere som et overfladisk objekt, der nydes uden etisk ansvar. Artiklen pegerpå......, at Knud E. Løgstrups fænomenologiske nærhedsetik – som Bauman fejlagtigtjævnfører med Levinas’ – tilbyder en interessant alternativ forståelse af forholdetimellem æstetik og etik: Ifølge Løgstrup har æstetikken nemlig forrang foretikken. Artiklens afgørende argument bliver i lyset heraf, at den etiske...

  4. Amerikansk sikkerhedspolitik efter den kolde krig

    DEFF Research Database (Denmark)

    Pall Skött, Jakob; Nielsen Kjær, Anna

    2005-01-01

    Via en Foucaldiansk analyseramme vil artiklen demonstrere et skift i den amerikanske sikkerhedsdiskurs. Derefter vil den fremhæve de nye kontrollerend emagtlogikkers paradoksale konsekvenser for den krig mod terror, der udkæmpes i frihedens og demokratiets navn. Udgivelsesdato: Marts...

  5. Den sociale stofmisbrugsbehandling. Del 1

    DEFF Research Database (Denmark)

    Heltberg, Therese

    Denne rapport er den første delrapport i en undersøgelse af den sociale stofmisbrugsbehandling i Danmark, som SFI har gennemført for Servicestyrelsen i perioden december 2007 til maj 2009. Undersøgelsen omhandler den sociale stofmisbrugsbehandling efter § 101 i Serviceloven, mens undersøgelsen i ...

  6. Double dens invaginatus: report of three cases.

    Science.gov (United States)

    Zengin, A Zeynep; Sumer, A Pinar; Celenk, Peruze

    2009-01-01

    Dens invaginatus results from an infolding of the outer surface of a tooth. The clinical importance of dens invaginatus results from the risk of pulpal disease. So, all clinicians should be aware of this anomaly. The presence of double dens invaginatus is extremely rare. This article presents three cases of double dens invaginatus in permanent maxillary lateral incisors, one with preventive restoration on its palatal surface. They were classified as double dens invaginatus because of two enamel lined invaginations presented in the crowns of these teeth.

  7. Den kulturelle dimension af virksomhedens internationalisering

    DEFF Research Database (Denmark)

    Langhoff, Tine

    1994-01-01

    Artiklen omhandler den kulturelle dimensions indvirkning på virksomhedens internationalisering og diskuterer mulige internationalisieringsstrategier for virksomheder, der konfronteres med kulturforskelle. Med udgangspunkt i en kritik af den hidtidige forskning på området, hvor det såkaldte psykiske...... distancebegreb har haft en central placering, foreslås det, at man som alternativ til dette begreb skal fokusere på virksomhedens markedsbaserede innovationsevne. Denne betegnes som dens interkultu kompetence og vedrører dens evne til at identificere og udnytte muligheder i fremmede kulturelle sammenhænge. Det...... er herved, at den kulturelle dimension påvirker virksomheden og dens fortsatte udvikling. En empirisk analyse i den danske fødevarebranche afdækker virksomheders interkulturelle kompetence ved hjælp af to spørgsmål: (1) Hvorledes formår virksomheder med begrænsede ressourcer til deres disposition...

  8. Usage of the micropixel detector TimePix for observation of the dynamics of phase transitions in metals

    Directory of Open Access Journals (Sweden)

    M. V. Pugach

    2012-12-01

    Full Text Available The results for the test of a TimePix hybrid detector as a tool for measuring and imaging in real time dynamics of phase transitions in metal alloys under heating or cooling are presented. The X-rays ( ~ 10 keV experimental setup explored for the diffraction studies at the Institute for Problems of Material Science NASU (Kyiv is briefly described. An evolution of the diffraction maxima position (~ 20 μm accuracy of the scattered X-rays was ob-served with exposures from a few dozen to a few hundred milliseconds under heating or cooling of the samples of Armco iron at a rate of 100 to 250 C/s. Data for the phase transitions (alpha-, gamma-phases observed during heating/cooling (20 - 1250 °C using the X-ray diffraction were measured.

  9. Kritik av den negativa uppbyggligheten

    DEFF Research Database (Denmark)

    Stjernfelt, Frederik; Thomsen, Søren Ulrik

    Under efterkrigstiden har ett märkligt fenomen fått fäste i kulturen. Ett konstverk, en handling, en utsaga bedöms inte längre efter om de är sköna, goda och sanna, utan efter om de bryter mot regler, gör uppror mot det konventionella eller angriper etablerade tänkesätt. Överskridandet av normer...... och provokationen mot inrotade uppfattningar framställs som viktigare än de positiva resultaten, avståndstagandet viktigare än ställningstagandet. Från att ha varit idéer hos ett fåtal filosofer, konstnärer och bohemer har denna negativism efterhand blivit en ideologi för den breda massan. Den...

  10. Campaign finance in den USA

    OpenAIRE

    Filzmaier, Peter; Plasser, Fritz

    2002-01-01

    'Die USA stellen einen exemplarischen Fall für exponentiell steigende Wahlkampfausgaben, fragwürdige Finanzierungspraktiken und ein de facto kollabiertes Regelungssystem dar. Anhand der aktuellen Diskussion um die Wahlkampffinanzierung werden drei Problemperspektiven angesprochen: Erstens geht es um die Erforschung der Ursachen des steigenden Kapitalbedarfs kompetitiver Wahlkämpfe in den USA als Musterbeispiel einer Teledemokratie. Aus demokratietheoretischer Sicht zu diskutieren sind zweiten...

  11. Konsulenten i den anden nat

    DEFF Research Database (Denmark)

    Kirkegaard, Line

    for i sit deres liv og den eksistensmåde, der hermed muliggøres. Med dette ønsker jeg at bidrage til de eksisterende work-life balance teorier. Min vej ind i teorierne er nemlig, at logikken i mit empiriske materiale forekommer så forskelligt fra de traditionelle work-life balance teorier, at disse ikke...... lader sig forene. Jeg foretage derfor en analyse af den eksisterende litteratur, og rejser i den forbindelse en grundlæggende kritik af work-life balance teorierne, for at operere med falske problemstillinger på en måde, så svaret allerede indgår i de spørgsmål, der stilles. Jeg argumenterer således for......, at det problematiske forhold ved work-life balance teorierne allerede skal søges i konstitueringen af deres problematik, hvor arbejde og fritid indgår som to distinkte og kontrasterende sfærer. Ubalance eller problemer søges således altid i relationen her imellem. I forlængelse heraf argumenterer jeg for...

  12. Den anden gæld

    DEFF Research Database (Denmark)

    Agustin, Lise Rolandsen

    2003-01-01

    I-landene har akkumuleret en økologisk gæld til u-landene som langt overstiger udlandsgælden. Den skal kompensere for udnyttelsen af naturressourcerne og den miljømæssige forurening, der er fulgt i kølvandet på udvindingen og eksporten af råvarer fra Syd til Nord. Den økologiske gæld fokuserer gl...

  13. den som foruroligende beroligelse

    DEFF Research Database (Denmark)

    Hansen, Ejvind

    2005-01-01

    Det giver mening at tale om, at dødenden ene side er noget af det vi er allermest sikre på – fordi vi ved at vi skal dø. Vi er faktisk så sikre på det, at vi kan bygge et samfund og en kultur op omkring denne vished. Man kan altså sige, at der er noget beroligende ved døden. Men kulturernes f...

  14. Dens evaginatus and dens invaginatus in all maxillary incisors: report of a case.

    Science.gov (United States)

    Vardhan, Talla Harsha; Shanmugam, Subramanyam

    2010-02-01

    Dens evaginatus is a developmental malformation characterized by the presence of an extra cusp that takes the form of a tubercle arising from the occlusal or the lingual surface of the tooth. It is also referred to as talon cusp in the anterior teeth and Leong premolar in the premolars. Dens invaginatus is a deep surface invagination of the crown or the root lined by enamel, dentin, and pulp. Though many case reports of dens evaginatus and dens invaginatus have been found in the literature, an association of both is a rare anomaly. Only two cases of concomitance of dens invaginatus and dens evaginatus have been reported. This article is a case report of dens evaginatus and dens invaginatus involving all four maxillary incisors in a 25-year-old patient.

  15. Forever Young - den norske tv-serie Skam

    DEFF Research Database (Denmark)

    Jerslev, Anne

    2016-01-01

    Hvorfor er det lige, at den norske netbaserede ungdomsserie "Skam" er på alles læber for tiden? Svaret er simpelt: Den er nyskabende og supergod, og den taler til en langt bredere målgruppe end den gruppe af teenagepiger, den er rettet mod....

  16. Die grossen Physiker und ihre Entdeckungen von den fallenden Körpern zu den Quarks

    CERN Document Server

    Segrè, Emilio

    1998-01-01

    Von Galileo Galilei bis zu Richard Feynman und Murray Gell-Mann - von den fallenden Körpern zu den Quarks: Der Physiknobelpreisträger Emilio Segre hat seine ganz persönliche Geschichte der Physik geschrieben. Er erzählt von den großen Gestalten und deren wichtigen Entdeckungen mit großer Anschaulichkeit und Lebendigkeit.

  17. Cornelis den Hartog: an outstanding aquatic ecologist

    NARCIS (Netherlands)

    Velde, van der G.; Brock, T.C.M.; Kempers, A.J.

    1996-01-01

    A survey is given of the work and life of Cornelis den Hartog up to the date in 1996 on which he retired from his position as a professor at the University of Nijmegen. Cornelis (Kees) den Hartog made important contributions to aquatic ecology in the widest sense, e.G. On brackish water typology,

  18. Den filosofiske præstation

    DEFF Research Database (Denmark)

    Skytte Gørtz, Kim Erik

    Bogen gør op med forestillingen om, at filosoffen er uanvendelig i erhvervslivet. Den udfolder en erhvervsfilosofi og inddrager filosoffer som Kant, Hegel, Kierkegaard, Nietzsche, Heidegger og Deleuze......Bogen gør op med forestillingen om, at filosoffen er uanvendelig i erhvervslivet. Den udfolder en erhvervsfilosofi og inddrager filosoffer som Kant, Hegel, Kierkegaard, Nietzsche, Heidegger og Deleuze...

  19. Den barokke lov i Kafkas "Processen"

    DEFF Research Database (Denmark)

    Simonsen, Karen-Margrethe

    2011-01-01

    Artiklen diskuterer barokke aspekter af loven hos Kafka, idet den inddrager erkendelser fra den historiske barok, blandt andet dobbeltheden af labyrintisk ornamentik og vertikal magt, og inddrager diskussioner af hhv. Gilles Deleuzes, Jacques Derridas og Tzvetan Todorovs læsninger af Kafka....

  20. Jagten på den kloge globaliseringsstrategi

    DEFF Research Database (Denmark)

    Mehlsen, Camilla

    2004-01-01

    Den kloge globaliseringsstrategi har fået et navn: Livslang læring. Men er strategien klog, når den fører til et polariseret arbejdsmarked? Og hvem skal betale for at dygtiggøre folk gennem hele livet? Asterisk har talt med professor Andy Green fra University of London. Udgivelsesdato: December...

  1. Luftstaub über den Meeren

    DEFF Research Database (Denmark)

    Kacunko, Slavko; Kacunko, Sabine; Gorbushina, Ana

    2013-01-01

    Staub umgibt uns überall und alles wird auch irgendwann zu Staub - ob wir wollen oder nicht. Staub nicht nur zu bekämpfen, sondern zu untersuchen, bildet den Ausgangspunkt zahlreicher Forschungen in den Natur-, Ingenieur- und Kulturwissenschaften. Der vorliegende Band verbindet solche Beiträge au...

  2. Nyliberalisme, universiteter og den akademiske frihed

    DEFF Research Database (Denmark)

    Madsen, Mogens Ove

    2012-01-01

    Akademisk frihed er uløseligt forbundet med det, der er selve universitetets væsen. New Public Management er dog sevet ind i den offentlige forvaltning og kapitlet giver et signalement af, hvilke konsekvenser dette har haft for universiteterne og den akademiske frihed...

  3. Den sociale vending = velfærdsskepsis?

    DEFF Research Database (Denmark)

    Skiveren, Tobias

    2017-01-01

    Anmeldelse af Tue Andersen Nexø: "Vidnesbyrd fra velfærdsstaten. Den sociale vending i ny dansk litteratur". København 2016: Arena......Anmeldelse af Tue Andersen Nexø: "Vidnesbyrd fra velfærdsstaten. Den sociale vending i ny dansk litteratur". København 2016: Arena...

  4. Pixelman: a multi-platform data acquisition and processing software package for Medipix2, Timepix and Medipix3 detectors

    International Nuclear Information System (INIS)

    Turecek, D; Holy, T; Jakubek, J; Pospisil, S; Vykydal, Z

    2011-01-01

    The semiconductor pixel detectors Medipix2, Timepix and Medipix3 (256x256 square pixels, 55x55 μm each) are superior imaging devices in terms of spatial resolution, linearity and dynamic range. This makes them suitable for various applications such as radiography, neutronography, micro-tomography and X-ray dynamic defectoscopy. In order to control and manage such complex measurements a multi-platform software package for acquisition and data processing with a Java graphical user interface has been developed. The functionality of the original version of Pixelman package has been upgraded and extended to include the new medipix devices. The software package can be run on Microsoft Windows, Linux and Mac OS X operating systems. The architecture is very flexible and the functionality can be extended by plugins in C++, Java or combinations of both. The software package may be used as a distributed acquisition system using computers with different operating systems over a local network or the Internet.

  5. New Generation GridPix: Development and characterisation of pixelated gaseous detectors based on the Timepix3 chip

    CERN Document Server

    AUTHOR|(CDS)2082958; Hessey, Nigel

    Due to the increasing demands of high energy physics experiments there is a need for particle detectors which enable high precision measurements. In this regard, the GridPix detector is a novel detector concept which combines the benefits of a pixel chip with an integrated gas amplification structure. The resulting unit is a detector sensitive to single electrons with a great potential for particle tracking and energy loss measurements. This thesis is focusing on the development of a new generation of GridPix detectors based on the Timepix3 chip, which implements a high resolution Time to Digital Converter (TDC) in each pixel. After an introductory chapter describing the motivation behind GridPix, the manuscript presents the physics of gaseous detectors in chapter 2 along with the gaseous detectors used for particle tracking in chapter 3. Chapters 4 and 5 are focusing on the tracking performance of GridPix detectors. Chapter 4 presents results obtained with a GridPix detector based on a small scale prototy...

  6. X-ray imaging with sub-micron resolution using large-area photon counting detectors Timepix

    Science.gov (United States)

    Dudak, J.; Karch, J.; Holcova, K.; Zemlicka, J.

    2017-12-01

    As X-ray micro-CT became a popular tool for scientific purposes a number of commercially available CT systems have emerged on the market. Micro-CT systems have, therefore, become widely accessible and the number of research laboratories using them constantly increases. However, even when CT scans with spatial resolution of several micrometers can be performed routinely, data acquisition with sub-micron precision remains a complicated task. Issues come mostly from prolongation of the scan time inevitably connected with the use of nano-focus X-ray sources. Long exposure time increases the noise level in the CT projections. Furthermore, considering the sub-micron resolution even effects like source-spot drift, rotation stage wobble or thermal expansion become significant and can negatively affect the data. The use of dark-current free photon counting detectors as X-ray cameras for such applications can limit the issue of increased image noise in the data, however the mechanical stability of the whole system still remains a problem and has to be considered. In this work we evaluate the performance of a micro-CT system equipped with nano-focus X-ray tube and a large area photon counting detector Timepix for scans with effective pixel size bellow one micrometer.

  7. Experimental MRI-SPECT insert system with Hybrid Semiconductor detectors Timepix for MR animal scanner Bruker 47/20

    Science.gov (United States)

    Zajicek, J.; Burian, M.; Soukup, P.; Novak, V.; Macko, M.; Jakubek, J.

    2017-01-01

    Multimodal medical imaging based on Magnetic Resonance is mainly combinated with one of the scintigraphic method like PET or SPECT. These methods provide functional information whereas magnetic resonance imaging provides high spatial resolution of anatomical information or complementary functional information. Fusion of imaging modalities allows researchers to obtain complimentary information in a single measurement. The combination of MRI with SPECT is still relatively new and challenging in many ways. The main complication of using SPECT in MRI systems is the presence of a high magnetic field therefore (ferro)magnetic materials have to be eliminated. Furthermore the application of radiofrequency fields within the MR gantry does not allow for the use of conductive structures such as the common heavy metal collimators. This work presents design and construction of an experimental MRI-SPECT insert system and its initial tests. This unique insert system consists of an MR-compatible SPECT setup with CdTe pixelated sensors Timepix tungsten collimators and a radiofrequency coil. Measurements were performed on a gelatine and tissue phantom with an embedded radioisotopic source (57Co 122 keV γ ray) inside the RF coil by the Bruker BioSpec 47/20 (4.7 T) MR animal scanner. The project was performed in the framework of the Medipix Collaboration.

  8. Dens invaginatus (dilated odontome) in mandibular canine.

    Science.gov (United States)

    Halawar, Sangamesh S; Satyakiran, Gvv; Krishnanand, Ps; Prashanth, R

    2014-09-01

    Dens invaginatus is a developmental malformation of teeth related to shape of the teeth. Affected teeth show a deep infolding of enamel and dentin starting from the tip of the cusps and may extend deep into the root. It results from the invagination of the enamel organ into the dental papilla before calcification has occurred. Teeth most affected are maxillary lateral incisors. The presence of dens invaginatus in mandibular canine is extremely rare. The tooth was symptomatic in that it was mobile and was oriented horizontally. This article presents a case of symptomatic dens invaginatus in mandibular canine.

  9. The charge pump PLL clock generator designed for the 1.56 ns bin size time-to-digital converter pixel array of the Timepix3 readout ASIC

    CERN Document Server

    Fu, Y et al.

    2014-01-01

    Timepix3 is a newly developed pixel readout chip which is expected to be operated in a wide range of gaseous and silicon detectors. It is made of 256×256 pixels organized in a square pixel-array with 55 µm pitch. Oscillators running at 640 MHz are distributed across the pixel-array and allow for a highly accurate measurement of the arrival time of a hit. This paper concentrates on a low-jitter phase locked loop (PLL) that is located in the chip periphery. This PLL provides a control voltage which regulates the actual frequency of the individual oscillators, allowing for compensation of process, voltage, and temperature variations.

  10. Den melankolske europæer

    DEFF Research Database (Denmark)

    Krejberg, Kasper Green

    2006-01-01

    Den europæiske identitet hører sammen med en selvbevidst melankoli. Det mener i hvert fald den tyske forfatter W.G. Sebald, hvis hovedværk Austerlitz advarer om, at vores fælles fortid løber os af hænde, hvis ikke vi insisterer på Europas enestående erindringsressourcer......Den europæiske identitet hører sammen med en selvbevidst melankoli. Det mener i hvert fald den tyske forfatter W.G. Sebald, hvis hovedværk Austerlitz advarer om, at vores fælles fortid løber os af hænde, hvis ikke vi insisterer på Europas enestående erindringsressourcer...

  11. Rare associations of dens invaginatus and mesiodens.

    Science.gov (United States)

    Sannomiya, Eduardo Kazuo; Asaumi, Jun-ichi; Kishi, Kanji; Dalben, Gisele da Silva

    2007-08-01

    Dens invaginatus is a developmental variation resulting from an alteration in the normal growth pattern of the dental papilla. Synonyms of this disturbance include dens in dente, invaginated odontome, tooth inclusion, and dentoid in dente. Radiographically, it is observed as infolding of a radiopaque ribbon-like structure, with equal density as enamel, extending from the cingulum into the root canal and sometimes reaching the root apex, assigning the appearance of a small tooth within the coronal pulp cavity. This article presents 2 case reports. The first describes an 8-year-old girl with dens invaginatus in a mesiodens; the second report describes a 16-year-old boy presenting with 2 mesiodens, both associated with dens invaginatus.

  12. van den Heuvel, Prof. Edward P J

    Indian Academy of Sciences (India)

    van den Heuvel, Prof. Edward P J . Date of birth: 2 November 1940. Address: Professor of Astrophysics, Astronomical Inst. Anton Pannekoek, Postbus 94249, 1090 GE Amsterdam, The Netherlands Contact: Office: (+31-20) 525 ...

  13. Motivation af den Kreative Sælger

    OpenAIRE

    Sørensen, Mikkel Vallentin; Floor, Jeppe Hjelmsted

    2012-01-01

    Projektet tager udgangspunkt i motivationen af danske sælgere. Med inspiration fra den positive psykologiske videnskab, udfordres eksisterende motivationsredskaber, med henblik på at motivere den enkelte medarbejder til at yde et bedre stykke arbejde for virksomheden. Daniel Pink, Bruno Frey og Frederick Herzberg danner det teoretiske grundlag for opgaven, og problemstillingen undersøges gennem en sammenholdelse af deres teorier med empirisk materiale i en fænomenologisk tilgang. Rapporten af...

  14. Læring og den kulturhistoriske skole

    DEFF Research Database (Denmark)

    Broström, Stig

    2007-01-01

    -forskere uddrager den grundlæggende forståelse af forholdet mellem læring og udvikling. Nemlig at læring og udvikling indgår i en dialektisk enhed og virker gensidigt ind på hinanden - dog således at læring kommer ført, den trækker udviklingen med sig og så at sige leder udviklingen. Vygotskys tese vedrørende...

  15. Den ma(d)skuline smag

    DEFF Research Database (Denmark)

    Leer, Jonatan

    2014-01-01

    madtv-scenen, var der primært to forskellige mandlige figurer på dette felt. Enten var man(d) en frankofil levemand, som var godt oppe i årene, eller også var man en professionel kok i uniform. Den første gruppe har den danske historiker Caroline Nyvang betegnet for ’gourmænd’. De betoner det...

  16. Studie af den amerikanske doktrin for Counterinsurgency

    DEFF Research Database (Denmark)

    Møller, Nicolai Stahlfest

    2006-01-01

    Specialet omhandler den amerikanske doktrin for Counter-insurgency under den givne overordnede problemstilling asymmetri. Erfaringerne fra Irak og Afghanistan har forårsaget den nyskrivning af doktrinen, som behandles efterfølgende. Doktrinen er potentielt interessant for Danmark, grundet valget af...... strategisk partner, og den mulige indsættelse i missioner, hvor kontakt med, og måske bekæmpelse af, fjendtlige oprørsbevægelser vil forekomme. Maos teori og den nyere radikale islams teori ses som værende repræsentative for oprørsbevægelser ift. både amerikanske erfaringer og det forventede danske...... synes også at være udtalt i imødegåelsen af radikal islam, hvilket er en stor udfordring for både militære og civile myndigheder og organisationer. For at fungere som COIN enhed kræver det veluddannede enheder, da de udover de basale soldateropgaver også skal kunne støtte ifm. CIMIC opgaver, løsning af...

  17. Polar bear maternity denning in the Beaufort Sea

    Science.gov (United States)

    Amstrup, Steven C.; Gardner, Craig L.

    1994-01-01

    The distribution of polar bears (Ursus maritimus) is circumpolar in the NOrthern Hemisphere, but known locations of maternal dens are concentrated in relatively few, widely scattered locations. Denning is either uncommon or unknown within gaps. To understand effects of industrial development and propose increases in hunting, the temporal and spatial distribution of denning in the Beaufort Sea must be known. We caputred and radiocollared polar bears between 1981 and 1991 and determined tht denning in the Beaufort Sea region was sufficient to account for the estimated population there. Of 90 dend, 48 were on drifting pack ice, 38 on land, and 4 on land-fast ice. The portions of dens on land was higher (P= 0.029) in later compared with earlier years of the study. Bears denning on pack ice drifting as far as 997 km (x=385km) while in dens. there was no difference in cun production by bears denning on land and pack ice (P =0.66). Mean entry and exit dates were 11 November and 5 April for land dens and 22 November and 26 March for pack-ice dens. Female polar bears captured in the Beaufort Sea appeared to be isolated from those caught eat of Cape Bathurst in Canada. Of 35 polar bears that denned along the mainland coast of Alaska and Canada 80% denned between 137 00'W snf 146 59'W. Bears followed to >1 den did not reuse sites and consecutive dens were 20-1,304 km apart. However radio-collared bears are largely faithful to substrate (pack-ice, land, and land-fast ice) and the general geographic area of previous dens. Bears denning on land may be vunerable to human activities such as hunting and industrial development. However, predictable denning chronology and alck of site fidelity indicate that many potential impacts on denning polar bears could be mitigated.

  18. Leadership pipeline i den offentlige sektor

    DEFF Research Database (Denmark)

    Dahl, Kristian Aagaard; Molly-Søholm, Thorkil

    en rejse ind i hjertet af offentlig ledelse med fokus på lederniveauerne: topchef, funktionel chef, leder af ledere og leder af medarbejdere. Med afsæt i righoldige eksempler og fortællinger fra virkeligheden introduceres læseren for ledelsesteorien den Offentlige Leadership Pipeline, som giver...... enkelte lederniveauer og udvikle ledertalenter. Teorien byder på et detaljeret ledelsesgrundlag, hvorudfra den offentlige organisation kan bygge en professionel værdikæde for ledelse ved at forme lederprofiler, -rekruttering, -uddannelse, -evaluering m.m. Leadership Pipeline i den offentlige sektor er...... baseret på et treårigt dansk praksisorienteret forskningsprojekt med deltagelse af 15 offentlige organisationer, som repræsenterer kommunerne, regionerne og staten. Projektet har videreudviklet en af de sidste 10 års mest indflydelsesrige ledelseteorier i de største private organisationer, Leadership...

  19. Dens invaginatus: diagnosis and management strategies.

    Science.gov (United States)

    Gallacher, A; Ali, R; Bhakta, S

    2016-10-07

    Dens invaginatus is a developmental malformation, in which there is an infolding of enamel into dentine. These infolds represent stagnation sites for bacteria and can predispose to dental caries. The carious infection can spread via enamel and dentine to contaminate the pulp and cause soft tissue necrosis. The altered and sometimes complex anatomy of affected teeth can make endodontic management challenging. Early diagnosis is therefore essential as prophylactic treatment of the dens can prevent degeneration and pulpal necrosis. The aim of this article is to review the aetiology, classification, diagnosis and management of teeth affected with dens invaginatus. Emphasis will be placed on describing the clinical features of this anomaly. Treatment options, management strategies and the challenges faced in managing this condition will be discussed.

  20. Dens invaginatus”: A Series of case reports

    Directory of Open Access Journals (Sweden)

    S R Ashwinirani

    2018-01-01

    Full Text Available Dens invaginatus is a developmental anomaly resulting from an invagination in the surface of a tooth crown before its calcification. It involves more commonly maxillary anterior teeth. Dens invaginatus with supernumerary teeth and double dens invagintus were also reported. The management of dens invaginatus includes simple prophylactic restoration to conventional endodontic treatment or extraction, depending on the type of invagination, function, esthetics, and morphology of the root canal. Extraction is indicated as a last choice of treatment in cases of failure of root canal treatment and in supernumerary teeth associated with dens invaginatus. In this paper, we have reported a series of cases of dens invagintus.

  1. Den danske kulturmodel og det nye Europa

    DEFF Research Database (Denmark)

    Duelund, Peter

    1993-01-01

    Hvad er det specielt danske? Er der udsigt til, at dette specialt danske gradvist vil blive afsløst i en europæisk enhedskultur? Eller giver den økonomiske integration mulighed for større lokale og regionale kulturelle forskelle?......Hvad er det specielt danske? Er der udsigt til, at dette specialt danske gradvist vil blive afsløst i en europæisk enhedskultur? Eller giver den økonomiske integration mulighed for større lokale og regionale kulturelle forskelle?...

  2. Portræt: Den koreanske dansker

    DEFF Research Database (Denmark)

    Henriksen, Carsten

    2009-01-01

    Lene Myong Petersen har som den første i Danmark skrevet ph.d.-afhandling om adoption. Og ifølge Lene Myong Petersen er det belastede begreb om race ikke til at slippe uden om, hvis man vil forstå vilkårene for adopterede i Danmark.......Lene Myong Petersen har som den første i Danmark skrevet ph.d.-afhandling om adoption. Og ifølge Lene Myong Petersen er det belastede begreb om race ikke til at slippe uden om, hvis man vil forstå vilkårene for adopterede i Danmark....

  3. Tagungsbericht: Den Alltag unter die Lupe genommen

    OpenAIRE

    Allolio-Näcke, Lars

    2003-01-01

    Die Tagung "Alltag im Aufbruch. Ein psychologisches Profil der Gegenwartskultur" beschäftigte sich mit dem Phänomen des gelebten Alltags in unserer und in anderen Kulturen. Im Unterschied zur Mainstream-Psychologie lag der Fokus der Tagung auf den kulturellen Konstruktionen von Sinn und Bedeutung als intentionalen Prozessen und wandte sich entschieden gegen jede Form der "Naturalisierung des Mentalen". Dem Alltäglichen näherten sich Beiträge aus den Themenbereichen Zeitkultur, Gefährdete Kult...

  4. Dragons' Den: promoting healthcare research and innovation.

    Science.gov (United States)

    Mazhindu, Deborah; Gregory, Siobhan

    2015-07-01

    The changing health and social care landscape, and, in particular, the financial challenges affecting the NHS, can present difficulties for staff looking for funding to support innovation and new ways of working. One method of competitive tendering that is becoming more accepted as a way of allocating funds, encouraging staff engagement and developing innovation for research is a format based the BBC television series, Dragons' Den. This article describes how Hounslow and Richmond Community Healthcare NHS Trust, London, has developed a 'Dragons' Den initiative' of annual competitive research funding allocation to ensure that some of the most dynamic practice in the trust is captured.

  5. Den empiriske uddannelsesvidenskab og kvalitet i studieaktivitet

    DEFF Research Database (Denmark)

    Keiding, Tina Bering; Qvortrup, Ane

    2015-01-01

    Bidraget kobler studieaktivitetesmodellen med kvalitetsindikatorer for god undervisning, og viler blandt andet, hvorledes modellen kan støtte samtænkning af forskellige undervisnings- og læringsformater med henblik på øge den aktive læretid......Bidraget kobler studieaktivitetesmodellen med kvalitetsindikatorer for god undervisning, og viler blandt andet, hvorledes modellen kan støtte samtænkning af forskellige undervisnings- og læringsformater med henblik på øge den aktive læretid...

  6. SU-D-BRB-02: Investigations of Secondary Ion Distributions in Carbon Ion Therapy Using the Timepix Detector.

    Science.gov (United States)

    Gwosch, K; Hartmann, B; Jakubek, J; Granja, C; Soukup, P; Jaekel, O; Martisikova, M

    2012-06-01

    Due to the high conformity of carbon ion therapy, unpredictable changes in the patient's geometry or deviations from the planned beam properties can result in changes of the dose distribution. PET has been used successfully to monitor the actual dose distribution in the patient. However, it suffers from biological washout processes and low detection efficiency. The purpose of this contribution is to investigate the potential of beam monitoring by detection of prompt secondary ions emerging from a homogeneous phantom, simulating a patient's head. Measurements were performed at the Heidelberg Ion-Beam Therapy Center (Germany) using a carbon ion pencil beam irradiated on a cylindrical PMMA phantom (16cm diameter). For registration of the secondary ions, the Timepix detector was used. This pixelated silicon detector allows position-resolved measurements of individual ions (256×256 pixels, 55μm pitch). To track the secondary ions we used several parallel detectors (3D voxel detector). For monitoring of the beam in the phantom, we analyzed the directional distribution of the registered ions. This distribution shows a clear dependence on the initial beam energy, width and position. Detectable were range differences of 1.7mm, as well as vertical and horizontal shifts of the beam position by 1mm. To estimate the clinical potential of this method, we measured the yield of secondary ions emerging from the phantom for a beam energy of 226MeV/u. The differential distribution of secondary ions as a function of the angle from the beam axis for angles between 0 and 90° will be presented. In this setup the total yield in the forward hemisphere was found to be in the order of 10 -1 secondary ions per primary carbon ion. The presented measurements show that tracking of secondary ions provides a promising method for non-invasive monitoring of ion beam parameters for clinical relevant carbon ion fluences. Research with the pixel detectors was carried out in frame of the Medipix

  7. A rare presentation of multiple dens invaginatus in maxillary dentition

    OpenAIRE

    Purani, Jigar M; Purani, Hiral J

    2014-01-01

    Dens invaginatus is a developmental disturbance of the tooth and usually occurs in the maxillary lateral incisor of permanent dentition. In this article, a rare case of dens invaginatus affecting multiple permanent maxillary teeth is described.

  8. Ledelse og motivation i den offentlige sektor

    DEFF Research Database (Denmark)

    Thuesen, Frederik

    Rapporten er et litteraturstudium, der belyser rammer for ledelse og arbejdstilrettelæggelse i den offentlige sektor. Rapporten afdækker, hvad der motiverer ledere og medarbejdere, og ledernes muligheder for gennem dialog med medarbejderne at udvikle en arbejdsplads, der er kendetegnet ved arbejd...

  9. Den udødelige gangster

    DEFF Research Database (Denmark)

    Bjerre, Thomas Ærvold

    2009-01-01

    Hollywood har igennem et århundrede hyldet de voldspsykopater, som de fleste gangstere nu engang er. Michael Manns Public Enemies er seneste skud på stammen i den lange række af amerikanske gangsterfilm, der tog sin begyndelse i starten af 1930'erne, og som meget hurtig blev til en mytisk...

  10. Tre teorier om den moralske udvikling

    DEFF Research Database (Denmark)

    Bo, Inger Glavind; Andreasen, Brian Kjær

    I artiklen gennemgås tre forskellige men teorihistorisk relaterede perspektiver på forståelsen af moralsk udvikling: Piaget, Kohlberg og Gilligan. I den efterfølgende diskussion af disse teoretikeres respektive positioner påpeges såvel forskelle som ligheder i deres betoning af moralens karakter...

  11. Joop van den Bremen, Streektaalmuziek in Nederland

    NARCIS (Netherlands)

    A.J.C. van der Hoeven (Arno)

    2015-01-01

    textabstractIn 1996, folk music fan Joop van den Bremen started his website Streektaalmuziek in Nederland (“Regional language music in the Netherlands”).1 On this website he collects information on Dutch musicians singing in dialect.2 As of September 2014, his still expanding database contains 6,164

  12. Inputorienteret oparbejdelse af den grammatikalske kompetence

    DEFF Research Database (Denmark)

    Ambjørn, Lone

    2001-01-01

    De forskellige teoretiske opfattelser, der ligger til grund for hhv. den output- og inputorienterede metode, beskrives. Der opstilles et eksempel på en grammatisk øvelsestypologi baseret på principperne i en input-orienteret læringsmodel....

  13. Hvordan beskriver man den fragmenterede by

    DEFF Research Database (Denmark)

    Lund, Nils-Ole

    1996-01-01

    En af otte kommentarer under titlen: "Kommentarer til 'Den oversete by' - det sansende" til udstilling i Charlottenborg, som indledte Kulturbyåret. Såvel udstillingsforfatterne som fotos fra udstillingen søger at modgå en række stærkt kritiske indlæg mod denne form for arkitekturformidling....

  14. Demokratiseringen af den politiske diskurs i Polen

    DEFF Research Database (Denmark)

    Arnfast, Juni Søderberg

    1999-01-01

    Gennem en analyse af brugen af personlige pronominer i politiske tekster fra udvalgte, polske medier diskuteres forandringerne i den polske, politiske diskurs gennem 1980'erne. Det påvises at det kommunistiske styres anvendelse af pronominet 'vi' skifter konnotationer i retning af en mindre ideol...

  15. Den skrøbelige sandhed

    DEFF Research Database (Denmark)

    Pedersen, Peter Ole

    2010-01-01

    dokumentationer. Denne udvikling kan også spores til den aktivistiske dokumentar, hvor filmene på samme tid fungerer som politiske argumenter og kritiske collager af mediernes overvældende informationsstrøm. Hensigten er, at fremvise hvordan denne type produktioner indgår i en subjektivistisk orienteret diskurs...

  16. Den drikfældige engel?

    DEFF Research Database (Denmark)

    Eriksen, Sidsel

    1991-01-01

    Artiklen opfatter kvinders særlige drikkemønstre som et udslag af kultur og ikke (blot) som en konsekvens af kvindens særlige biologi. Udgangspunktet er, at drikkeri ikke passer sammen med den traditionelle kvinderolle. Endnu værre er det dog, hvis kvinder drak i offentligheden. Det er formentlig...

  17. Nyliberalisme, universiteter og den akademiske frihed

    DEFF Research Database (Denmark)

    Madsen, Mogens Ove

    2011-01-01

    Den akademiske frihed er forbundet med absolut frihed til at frembringe og videreformidle viden. Denne ide med universitetet er blevet udfordret ganske kraftigt i de senere år, ikke kun i Danmark. Stærke rådgivningsinstitutioner som OECD og EU har i en del år anbefalet, at universiteternes opgave...

  18. van den Heuvel, Prof. Edward P J

    Indian Academy of Sciences (India)

    Email: e.p.j.vandenheuvel@uva.nl, ed.van.den.heuvel@gmail.com. YouTube; Twitter; Facebook; Blog. Academy News. IAS Logo. Theory Of Evolution. Posted on 23 January 2018. Joint Statement by the Three Science Academies of India on the teaching of the theory of evolution more... ACADEMY PUBLIC LECTURE:

  19. Digital kommunikation med den offentlige sektor

    DEFF Research Database (Denmark)

    Berger, Jesper Bull; Andersen, Kim Normann

    , som enten via spørgeskema, e-mail eller telefon har givet os et enestående indblik i deres håndtering af den digitale kommunikation. Publikationen er et såkaldt workingpaper, hvor vi mere end gerne modtager forslag og kommentarer til forbedringer. Der er i publikationen en række aktive links til...

  20. Hjernerum - Den følelsesfulde hjerne

    DEFF Research Database (Denmark)

    Kringelbach, Morten L.

    Learning Lab Denmark/Peoples Press, Copenhagen. 2004 Kort beskrivelse: 'Hjernerum' er en fortælling fra hjerneforskningens frontlinie om de nyeste indsigter i den følelsesfulde hjerne. Med udgangspunkt i egen forskning og historisk indsigt i alt fra videnskabs- til litteratur- og kunsthistorie, t...

  1. Flaskevand - den rene vare i brandingens tidsalder

    DEFF Research Database (Denmark)

    Hermansen, Judy

    2008-01-01

    At tappe vand på flasker er blevet den mest udbredte globale virksomhed overhovedet, og forbruget af flaskevand stiger fortsat hurtigt - især i lande hvor man kan få rent drikkevand direkte fra hanen gratis eller til en meget billig penge. Hvorfor er vi havnet i sådan et tilsyneladende paradoksal...

  2. Dens evaginatus and dens invaginatus in a double tooth: A rare case report.

    Science.gov (United States)

    Sharma, Gaurav; Mutneja, Anudeep R; Nagpal, Archna; Mutneja, Puneet

    2015-01-01

    The presence of dens invaginatus (DI) and dens evaginatus (DE) on same tooth is a rare phenomenon. However, when these dental anomalies occur on a double tooth, it becomes an extremely rare phenomenon. The authors report a rare case of DI and DE on fused permanent maxillary central incisor with supernumerary tooth in a 40-year-old male. The present article also focuses on the differentiating fusion from gemination and also reviews preventive and management strategies for tooth with complex dental anatomy.

  3. Human disturbances of denning polar bears in Alaska

    Energy Technology Data Exchange (ETDEWEB)

    Amstrup, S.C. (Alaska Fish and Wildlife Research Center, Anchorage, AK (United States))

    1993-09-01

    Polar bears (Ursus maritimus) give birth in dens of snow and ice. The altricial neonates cannot leave the den for >2 months post-partum and are potentially vulnerable to disturbances near dens. The coastal plain (1002) area of Alaska's Arctic National Wildlife Refuge (ANWR) lies in a region of known polar bear denning and also may contain >9 billion barrels of recoverable oil. Polar bears in dens could be affected in many ways by hydrocarbon development. The distribution of dens on ANWR was documented between 1981 and 1992 and responses of bears in dens to various anthropogenic disturbances were observed. Of 44 dens located by radiotelemetry on the mainland coast of Alaska and Canada, 20 (45%) were on ANWR and 15 (34%) were within the 1002 area. Thus, development of ANWR will increase the potential that denning polar bears are disturbed by human activities. However, perturbations resulting from capture, marking, and radiotracking maternal bears did not affect litter sizes or stature of cubs produced. Likewise, 10 of 12 denned polar bears tolerated exposure to exceptional levels of activity. This tolerance and the fact that investment in the denning effort increases through the winter indicated that spatial and temporal restrictions on developments could prevent the potential for many disruptions of denned bears from being realized. 16 refs., 1 fig., 2 tabs.

  4. Human disturbances of denning polar bears in Alaska

    International Nuclear Information System (INIS)

    Amstrup, S.C.

    1993-01-01

    Polar bears (Ursus maritimus) give birth in dens of snow and ice. The altricial neonates cannot leave the den for >2 months post-partum and are potentially vulnerable to disturbances near dens. The coastal plain (1002) area of Alaska's Arctic National Wildlife Refuge (ANWR) lies in a region of known polar bear denning and also may contain >9 billion barrels of recoverable oil. Polar bears in dens could be affected in many ways by hydrocarbon development. The distribution of dens on ANWR was documented between 1981 and 1992 and responses of bears in dens to various anthropogenic disturbances were observed. Of 44 dens located by radiotelemetry on the mainland coast of Alaska and Canada, 20 (45%) were on ANWR and 15 (34%) were within the 1002 area. Thus, development of ANWR will increase the potential that denning polar bears are disturbed by human activities. However, perturbations resulting from capture, marking, and radiotracking maternal bears did not affect litter sizes or stature of cubs produced. Likewise, 10 of 12 denned polar bears tolerated exposure to exceptional levels of activity. This tolerance and the fact that investment in the denning effort increases through the winter indicated that spatial and temporal restrictions on developments could prevent the potential for many disruptions of denned bears from being realized. 16 refs., 1 fig., 2 tabs

  5. Premolarized double dens in dente in albinism - A case report

    Directory of Open Access Journals (Sweden)

    Suprabha B

    2005-09-01

    Full Text Available Dens in dente are known to be associated with many dental abnormalities such as taurodontism microdontia, gemination, and dens evaginatus. This paper describes a rare case of double dens in dente in a lateral incisor with crown morphology similar to a premolar present in a patient with features of albinism. Problems associated with this condition and their management is discussed.

  6. Erhvervsliv og politik i Den Europæiske Union

    DEFF Research Database (Denmark)

    Nedergaard, Peter

    socialkonstruktivismen tager sig af de ændrede politiske præferencer og rational choice-teorien sig af de langt mere konstante politiske institutioner. Den foreslåede teori anvendes til forklaring af de politiske resultater af tre vigtige reformer af EU's landbrugspolitik i 1984, 1992 og 2003. Den viser sig i stand til......Artiklen diskuterer anvendelige teorier for analysen af den økonomisk-politiske integration i EU's politiske system, som i dag er langt den vigtigste reguleringsramme om virksomhederne i EU. I den forbindelse foreslår artiklen en såkaldt socialkonstruktivistisk rational choice-teori, hvor...

  7. Jamie Oliver i den gode smags tjeneste

    DEFF Research Database (Denmark)

    Leer, Jonatan

    2014-01-01

    det gode liv er i stigende grad blevet en central del af genren i dag, hvor særligt kogebogsforfatternes privatliv og livsstil – altså et selvbiografisk element – er blevet et bærende narrativ i mange kogebøger. Med sådanne iscenesættelser og dramatiseringer af forestillinger om det gode liv bevæger...... den gode sags tjeneste først og fremmest tjener til at skabe et positivt billede af tv-kokken/kogebogsforfatteren som etisk individ (og brand) på bekostning af de gastronomisk nødstedte. Det skal nævnes, at jeg i min læsning af Jamies kogebogs-kampskrift har ladet mig inspirere af den russisk...

  8. Dens Evaginatus: A Problem-Based Approach

    Directory of Open Access Journals (Sweden)

    A. Ayer

    2015-01-01

    Full Text Available Dens evaginatus is an uncommon developmental anomaly of human dentition characterized by the presence of tubercle on the occlusal surface of mandibular premolars and lingual surface of anterior teeth. Due to occlusal trauma this tubercle tends to fracture thus exposing the pathway to the pulp chamber of teeth. This case report is about the presentation of dens evaginatus in mandibular premolars bilaterally; among them tooth 44 was associated with chronic apical periodontitis. Fractured tubercle of three premolars was sealed with composite resin. Root canal treatment was performed with tooth 44. Routine endodontic treatment did not result in remission of infection. Therefore, culture and sensitivity tests were performed to identify the cause and modify treatment plan accordingly. Triple antibiotic paste was used as an intracanal medicament to disinfect the root canal that resulted in remission of infection.

  9. Dens invaginatus: A review and case series

    Directory of Open Access Journals (Sweden)

    Nesrine Tebbeb

    2018-01-01

    Full Text Available Dens invaginatus (DI (dens in dente is a developmental anomaly resulting from an invagination in part of variable depth of the enamel organ into the dental papilla in the surface of the crown before calcification of the dental tissues. This anomaly usually involves the upper lateral incisors. These teeth are frequently expressed by an unusual form of crown and accentuation in the cingulum or a cusp. They are a target for caries leading to pulp necrosis and apical pathosis, so the diagnosis and early prevention measures are important. When treatment is necessary, conservative, endodontic, and periodontal possibilities are very effective. Surgical interventions are only rarely indicated. The present paper deals with the treatment of series cases with DI.

  10. Stephen Schwartz og den folkelige lyd

    DEFF Research Database (Denmark)

    Kreutzfeldt, Jacob

    2013-01-01

    Stephen Schwartz døde i foråret 2013. I denne artikel forsøger Jacob Kreutzfeldt, der gennemførte en række interviews med Schwartz gennem hans sidste år, at indkredse den æstetiske grundholdning, der prægede hans arbejde med radiomontagen i DR.......Stephen Schwartz døde i foråret 2013. I denne artikel forsøger Jacob Kreutzfeldt, der gennemførte en række interviews med Schwartz gennem hans sidste år, at indkredse den æstetiske grundholdning, der prægede hans arbejde med radiomontagen i DR....

  11. Den Digital Kirkegårdskultur

    DEFF Research Database (Denmark)

    Sabra, Jakob Borrits

    2016-01-01

    (primært vestlige) forskningslitteratur på området, vil jeg i denne artikel argumentere for, at kirkegården også har en voksende digital dimension, der kræver opmærk- somhed, holdningsudveksling og stillingtagen på samme vis som stedets religiøse, sekulære, æstetiske, sociale, kulturelle, historiske......, politiske og funktionelle dimensioner. Det for- udsætter et overblik over digitale fænomener og tendenser indenfor medieringer af døden i den danske kirkegårds- og mindekultur. Jeg vil således først give eksempler på, hvor- dan digitale teknologier og sociale medier kommer til udtryk i denne sammenhæng, og...

  12. Open Access og Den Bibliometriske Forskningsindikator

    DEFF Research Database (Denmark)

    Dorch, Bertil

    2011-01-01

    I sine "Anbefalinger til implementering af Open Access i Danmark" foreslår det nationale Open Access Udvalget blandet andet, at Den Bibliometriske Forskningsindikator (BFI) bør koordineres med en national Open Access-politik. I dette paper, der er baseret på et blogindlæg, fremfører forfatteren...... fire grunde til, hvorfor han synes det er en dårlig idé at koble Open Access til BFI....

  13. Construindo um Densímetro

    Directory of Open Access Journals (Sweden)

    Ricetti Rodrigo

    2002-01-01

    Full Text Available Para fins didáticos, é apresentada uma maneira de construir um densímetro, aparelho utilizadopara medir a densidade de fluidos. um aparato fácil de ser construído e muito simples de serutilizado. Sua principal vantagem sobre os densímetros que comercialmente encontramos, é a suacapacidade de medir a densidade de quaisquer líquidos, operando em qualquer faixa de densidade. Outra vantagem que apresenta, é a possibilidade de fazer uma medição relativa entre quaisquerlíquidos, não fazendo apenas a medição relativa à densidade da água. Desta maneira, pode-semedir, por exemplo, a densidade do mercúrio em relação ao éter, com este instrumento. Nota-seque, desta maneira, com apenas um instrumento determina-se a densidade de qualquer líquido, nãosendo necessário dispor-se de densímetros que operem em diversas faixas de densidade, como é ocaso dos instrumentos encontrados comercialmente.

  14. Simultaneous Occurrence of Dens Invaginatus and Fusion

    Directory of Open Access Journals (Sweden)

    Amit Mhapuskar

    2013-01-01

    Full Text Available Although Dens invaginatus and fusion are well-known and well established dental anomalies, they are rarely seen in supernumerary teeth. In this article, simultaneous occurrence of Dens invaginatus and fusion between maxillary lateral incisor and a supernumerary tooth is described. Dens invaginatus is clinically significant due to the possibility of the pulpal involvement; pulpitis, necrotic pulps and chronic periapical lesions are often associated with this anomaly without clinical symptoms. Fusion has a negative impact on the aesthetics, especially when it occurs in maxillary anterior teeth. It is difficult to clinically make differential diagnosis between fused teeth and geminated teeth, especially when these anomalies take place together with hypodontia or supernumerary tooth. It has been found that sequel of such teeth may result in delayed eruption, ectopic eruption or even impaction of permanent teeth; hence proper diagnosis by clinical and radiographic methods and intervention at appropriate time is of paramount importance. The accurate knowledge of variations in morphology of tooth and pulp cavity greatly assists the dentist in planning successful treatment options.

  15. Diagnosis and clinical significance of dens invaginatus to practicing dentist.

    Science.gov (United States)

    Mupparapu, Muralidhar; Singer, Steven R; Pisano, Dominic

    2006-01-01

    Dens invaginatus, commonly known as dens in dente, is a developmental malformation of teeth that most commonly affects permanent maxillary lateral incisors. Deciduous teeth are infrequently affected. Presence of dens invaginatus in mandibular permanent teeth is extremely uncommon. A rare presentation of coronal double dens invaginatus incidentally detected in a mandibular canine tooth on radiographic examination is being reported, along with a discussion of this anomaly. The patient had presented for routine dental treatment unrelated to this finding. In addition, the various radiographic appearances of dens invaginatus, as they present within the maxillary and mandibular teeth, are described. Essential clinical considerations and treatment options are presented. A review of the pertinent literature is undertaken, and tables summarizing previously published reports of mandibular dens invaginatus and double dens invaginatus are presented. A review of the literature indicates that dens invaginatus in mandibular teeth is extremely rare, with only 11 other cases, involving 14 teeth, reported previously. Cases of double dens invaginatus are even more atypical, with only eight previously reported cases. Dens invaginatus is an anomaly that should be familiar to all practicing dentists because of the clinical implications and potential sequelae.

  16. Dens evaginatus and dens invaginatus in a double tooth: A rare case report

    Directory of Open Access Journals (Sweden)

    Gaurav Sharma

    2015-01-01

    Full Text Available The presence of dens invaginatus (DI and dens evaginatus (DE on same tooth is a rare phenomenon. However, when these dental anomalies occur on a double tooth, it becomes an extremely rare phenomenon. The authors report a rare case of DI and DE on fused permanent maxillary central incisor with supernumerary tooth in a 40-year-old male. The present article also focuses on the differentiating fusion from gemination and also reviews preventive and management strategies for tooth with complex dental anatomy.

  17. An update on the diagnosis and treatment of dens invaginatus.

    Science.gov (United States)

    Zhu, J; Wang, X; Fang, Y; Von den Hoff, J W; Meng, L

    2017-09-01

    Dens invaginatus is a malformation with varying anatomical features, posing challenges to treatment. Early and accurate diagnosis plays a significant role in selecting the appropriate treatment. The diagnosis of teeth with a complex root canal system including dens invaginatus has made progress with the application of three-dimensional imaging techniques in endodontics. Advanced treatment options provide hope for teeth that could not be saved before. This review discusses diagnostic methods and treatment options for teeth with dens invaginatus, and provides guidelines for the management of dens invaginatus cases in clinic. Current as well as traditional diagnostic techniques are summarized. Treatment options including state-of-the-art alternatives are presented for coronal dens invaginatus and radicular dens invaginatus. © 2017 Australian Dental Association.

  18. Droht den "kleinen Sprachen" das Aussterben?

    Directory of Open Access Journals (Sweden)

    Anita Lemić

    2014-12-01

    Full Text Available Die Prozesse der Globalisierung sind die Ursache für viele Änderungen in der Weltgemeinschaft, vor allem die Entfernung von Unterscheidungsmerkmalen (in Bezug darauf, dass „zwischen vielen ethnischen Zeichen, das was dauernd ist, ist die Dichotomisierung/Differenzierung eines „Wir-und-die-Anderen“ (Grbić, 2003, 93-64. Diese Zeichen wirken als Zeichen der Resozialisierung, die die bestehenden Identitäten löschen und sich an der Schaffung neuer Strukturen beteiligen. Die Zeit der Romantik in Europa ermöglichte die Schaffung von Nationalstaaten und ihr Hauptmerkmal war die Nationalsprache. Diese Art der sozialen Differenzierung hatte das Ziel, die Illusion einer vollständig homogenisierten Gesellschaft zu schaffen und damit den Prozess der Zerstörung der „kleinen“ Sprachen zu beginnen. Sprache und Kultur erwiesen sich als Grundlage der Gemeinschaftserhaltung. Die Homogenisierung ermöglicht Aktivitäten mit dem Ziel, einem Individuum zu helfen, sich als Individuum und als Mitglied der Gemeinschaft zu behaupten. Keine dieser beiden Identitäten kann ohne die Wechselwirkung mit der Umgebung erreicht werden. Die sprachliche Interaktion mit anderen Mitgliedern ist das Schlüsselsegment, das Menschen von anderen Lebensformen unterscheidet. Durch den Austausch von Erfahrungen mit anderen kommt der Mensch auf allen Ebenen voran und mit der Erfindung der Schrift öffnete er die Tür zur Entwicklung der Zivilisation. In dieser Arbeit beschäftigen wir uns mit der Frage der „Prestige“-Sprachen, die auf der Grundlage der Macht der Gemeinschaft der Muttersprachler ihren Bereich weit über die Grenzen des eigenen Landes hinaus erweitern und so eine politische und wirtschaftliche Vormachtstellung schaffen, aber auch mit den Auswirkungen jener Sprachen auf die Dekonstruktion oder möglicherweise vollständige Ausrottung der Sprachen, die auf diese Weise an Einfluss verlieren, unmodern werden und sich die Frage der Notwendigkeit ihrer

  19. Den teoretiske udvikling af Supply Chain Strategimodeller

    DEFF Research Database (Denmark)

    Arvad Johansen, Jens

    2011-01-01

    segmentering via postponement-princippet, har givet mærkbare forbedringer. Det beskrives endvidere, hvordan produkternes livscyklus påvirker valget af supply chain design. Begrebet Demand Chain Management( DCM), hvormed strategimodeller bruger klassiske marketingelementer sammen med Supply Chain Management......Denne artikel beskriver med udgangspunkt i artikler og virksomhedseksempler udviklingen inde for supply chain strategimodeller. Ved hjælp af tidligere udviklede koncepter besvares spørgsmålet: “Hvad er den rette supply chain for mine produkter?”. Virksomhedseksempler beskriver, hvordan supply chain...

  20. Zoologien i den klassiske islamiske kultur

    OpenAIRE

    Provencal, Philippe; Aarab, Ahmed

    2014-01-01

    Denne artikel bringer en oversigt over forskning i den zoologiske videnskab, således som denne er kommet til udtryk i tekster skrevet på klassisk arabisk fra anden halvdel af 700-tallet til 1400-tallet. I lyset af nyere forskning og med eksempler hentet fra de arabiske tekster selv, bliver en ny bedømmelse af disse teksters faglige indhold foreslået. This article brings a survey of research on the science of zoology in the Classical Arabic/Islamic Culture as revealed in texts on this subje...

  1. Zu den on Emona und Ljubljana

    Directory of Open Access Journals (Sweden)

    Jaroslav Šašel

    1984-12-01

    Full Text Available Die Bildungssilbe -ona wurde in übernommenen ON von den Slawen regelmässig auf -in umgebildet (Salona-Solin. Dieser Gruppe wird vom Autor auch die Form Atamine beigezählt (für Emona, Anon. Ravenn. 4.20, die infolge einer Diskontinuität in Vergessenheit geriet. Im Bereich derselben Siedlungsstelle taucht später der ON Ljubljana auf, dessen Bildungssilbe -ana (wie in ON Fažana, Sežana auf lokales Bestehen eines sprachlich vorslawischen Elements hindeutet. Lit. und Beispiele s. im Text oben.

  2. [Dens in dente. Histological characteristics of an unusual case of dens in dente].

    Science.gov (United States)

    Macorra, J C; Pérez, J; Puertas, A J

    1989-03-01

    We describe a rare case of "dens in dente" in an accessory germ in central location of an anencephalic phoetus. Its characteristics of having enamel surrounding normal dentin and normal pulpar cavity, all of them surrounded by the unaffected accessory germ leads us to describe the term "dente in dente". Such alteration is not previously described.

  3. Den skjulte Oldtid – den nye udstilling på Nationalmuseet

    DEFF Research Database (Denmark)

    Ingemann, Bruno

    2009-01-01

    Enhver udstilling konstruerer sin besøgende! Man skal som besøgende have bestemte forudsætninger, en vis viden, kende bestemte kategorier, have en bestemt form for nysgerrighed – og det er udstillingen som skaber dette særsprog med dets muligheder for at udelukke eller inkludere den besøgende. De...

  4. The incidence of the dens invaginatus in the maxillary incisors

    International Nuclear Information System (INIS)

    Jin, Hae Yun; Lee, Sang Rae

    1980-01-01

    The purpose of this survey was to reveal a incidence of dens invaginatus in the maxillary incisor region. The material was 1671 sets of full mouth intraoral standard films, which was taken from the patients visiting for the routine check at the Infirmary of College of Dentistry, Kyung Hee University. The following results were obtained; 1. The incidence of dens invaginatus was 14.90 and that of slightly dilated dens invaginatus was 9.46%. 2. The incidence of dens invaginatus showed no difference between male and female. 3. Most of the dens invaginatus occurred in the maxillary lateral incisors (93.53%) and a few in the maxillary central incisors (6.46%) showed slight invagination. 4. Among the cases with dens invaginatus, over a half (53.41%) showed bilateral occurrence. 5. Comparatively rate cases, i. e. bilateral dens invaginatus of the maxillary central incisors, unilateral double dens invaginatus of the maxillary lateral incisor, and bilateral dens invaginatus of the maxillary lateral incisors, one side double and one side single, were reported.

  5. The incidence of the dens invaginatus in the maxillary incisors

    Energy Technology Data Exchange (ETDEWEB)

    Jin, Hae Yun; Lee, Sang Rae [Dept. of Dental Radiology, Division of Dentistry, Graduate School, Kyung Hee University, Seoul (Korea, Republic of)

    1980-11-15

    The purpose of this survey was to reveal a incidence of dens invaginatus in the maxillary incisor region. The material was 1671 sets of full mouth intraoral standard films, which was taken from the patients visiting for the routine check at the Infirmary of College of Dentistry, Kyung Hee University. The following results were obtained; 1. The incidence of dens invaginatus was 14.90 and that of slightly dilated dens invaginatus was 9.46%. 2. The incidence of dens invaginatus showed no difference between male and female. 3. Most of the dens invaginatus occurred in the maxillary lateral incisors (93.53%) and a few in the maxillary central incisors (6.46%) showed slight invagination. 4. Among the cases with dens invaginatus, over a half (53.41%) showed bilateral occurrence. 5. Comparatively rate cases, i. e. bilateral dens invaginatus of the maxillary central incisors, unilateral double dens invaginatus of the maxillary lateral incisor, and bilateral dens invaginatus of the maxillary lateral incisors, one side double and one side single, were reported.

  6. Mozart, Karl Barth, og den kristne troslæren

    DEFF Research Database (Denmark)

    Petersen, Nils Holger

    2010-01-01

    En diskussion af Karl Barths teologiske brug af W.A.Mozart i den kirchliche Dogmatik med kontekstuel inddragelse af en til en vis grad tilsvarende overordnet diskussion af Mozart, skrevet af en samtidig musiker, den fremtrædende Mozart-dirigent Ferenc Fricsay. ......En diskussion af Karl Barths teologiske brug af W.A.Mozart i den kirchliche Dogmatik med kontekstuel inddragelse af en til en vis grad tilsvarende overordnet diskussion af Mozart, skrevet af en samtidig musiker, den fremtrædende Mozart-dirigent Ferenc Fricsay. ...

  7. Digital kommunikation med den offentlige sektor

    DEFF Research Database (Denmark)

    Berger, Jesper; Andersen, Kim Normann

    2013-01-01

    til. I denne undersøgelse sættes der fokus på myndighedernes besvarelse af den digitale post. Digital post blev bl.a. etableret som et alternativ til almindelig e-mail for at det offentlige kan kommunikere med borgere og virksomheder på en sikker måde, dvs. uden at uvedkommende kan få adgang til...... følsomme oplysninger. Fokus for undersøgelsen er hvordan håndterer myndighederne besvarelserne i den digitale postkasse: svarer de på digital post og e-mail, hvor hurtigt svarer de og er svarene brugbare? Undersøgelsen medtager myndighedernes besvarelse af digital post og e-mail, dels for at kunne...... sammenligne de to digitale kanaler og for at kunne sammenligne med en tidligere undersøgelse af digital kommunikation med det offentlige. Herudover er der tidligere gennemført en undersøgelse af e-mail svar og svartider i New Zealand og Australien. De danske resultater fra e-mail undersøgelsen, men ikke...

  8. Digital kommunikation med den offentlige sektor

    DEFF Research Database (Denmark)

    Berger, Jesper Bull; Andersen, Kim Normann

    digital postkasse, som borgerne kunne skrive til. I denne undersøgelse sættes der fokus på myndighedernes besvarelse af den digitale post. Digital post blev bl.a. etableret som et alternativ til almindelig e-mail for at det offentlige kan kommunikere med borgere og virksomheder på en sikker måde, dvs....... uden at uvedkommende kan få adgang til følsomme oplysninger. Fokus for undersøgelsen er hvordan håndterer myndighederne besvarelserne i den digitale postkasse: svarer de på digital post og e-mail, hvor hurtigt svarer de og er svarene brugbare? Vi har også undersøgt besvarelse af e-mail, dels...... for at kunne sammenligne de to digitale kanaler og for at kunne sammenligne med en tidligere undersøgelse af digital kommunikation med det offentlige. Herudover er der tidligere gennemført en undersøgelse af e-mail svar og svartider i New Zealand og Australien. De danske resultater fra e-mail undersøgelsen...

  9. Digital kommunikation med den offentlige sektor

    DEFF Research Database (Denmark)

    Berger, Jesper Bull; Andersen, Kim Normann

    til. I denne undersøgelse sættes der fokus på myndighedernes besvarelse af den digitale post. Digital post blev bl.a. etableret som et alternativ til almindelig e-mail for at det offentlige kan kommunikere med borgere og virksomheder på en sikker måde, dvs. uden at uvedkommende kan få adgang til...... følsomme oplysninger. Fokus for undersøgelsen er hvordan håndterer myndighederne besvarelserne i den digitale postkasse: svarer de på digital post og e-mail, hvor hurtigt svarer de og er svarene brugbare? Undersøgelsen medtager myndighedernes besvarelse af digital post og e-mail, dels for at kunne...... sammenligne de to digitale kanaler og for at kunne sammenligne med en tidligere undersøgelse af digital kommunikation med det offentlige. Herudover er der tidligere gennemført en undersøgelse af e-mail svar og svartider i New Zealand og Australien. De danske resultater fra e-mail undersøgelsen, men ikke...

  10. Ab initio structure determination of nanocrystals of organic pharmaceutical compounds by electron diffraction at room temperature using a Timepix quantum area direct electron detector

    Energy Technology Data Exchange (ETDEWEB)

    Genderen, E. van; Clabbers, M. T. B. [Biophysical Structural Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden (Netherlands); Center for Cellular Imaging and NanoAnalytics (C-CINA), Biozentrum, University of Basel, CH-4058 Basel (Switzerland); Das, P. P. [Nanomegas SPRL, Boulevard Edmond Machtens 79, B 1080, Brussels (Belgium); Stewart, A. [Department of Physics and Energy, Materials and Surface Science Institute (MSSI), University of Limerick, Limerick (Ireland); Nederlof, I. [Biophysical Structural Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden (Netherlands); Amsterdam Scientific Instruments, Postbus 41882, 1009 DB Amsterdam (Netherlands); Barentsen, K. C. [Biophysical Structural Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden (Netherlands); Portillo, Q. [Nanomegas SPRL, Boulevard Edmond Machtens 79, B 1080, Brussels (Belgium); Centres Científics i Tecnològics de la Universitat de Barcelona, University of Barcelona, Carrer de Lluís Solé i Sabaris, 1-3, Barcelona (Spain); Pannu, N. S. [Biophysical Structural Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden (Netherlands); Nicolopoulos, S. [Nanomegas SPRL, Boulevard Edmond Machtens 79, B 1080, Brussels (Belgium); Gruene, T., E-mail: tim.gruene@psi.ch [Biology and Chemistry, Laboratory of Biomolecular Research, Paul Scherrer Institute (PSI), 5232 Villigen (Switzerland); Abrahams, J. P., E-mail: tim.gruene@psi.ch [Biophysical Structural Chemistry, Leiden University, Einsteinweg 55, 2333 CC Leiden (Netherlands); Center for Cellular Imaging and NanoAnalytics (C-CINA), Biozentrum, University of Basel, CH-4058 Basel (Switzerland); Biology and Chemistry, Laboratory of Biomolecular Research, Paul Scherrer Institute (PSI), 5232 Villigen (Switzerland)

    2016-02-05

    A specialized quantum area detector for electron diffraction studies makes it possible to solve the structure of small organic compound nanocrystals in non-cryo conditions by direct methods. Until recently, structure determination by transmission electron microscopy of beam-sensitive three-dimensional nanocrystals required electron diffraction tomography data collection at liquid-nitrogen temperature, in order to reduce radiation damage. Here it is shown that the novel Timepix detector combines a high dynamic range with a very high signal-to-noise ratio and single-electron sensitivity, enabling ab initio phasing of beam-sensitive organic compounds. Low-dose electron diffraction data (∼0.013 e{sup −} Å{sup −2} s{sup −1}) were collected at room temperature with the rotation method. It was ascertained that the data were of sufficient quality for structure solution using direct methods using software developed for X-ray crystallography (XDS, SHELX) and for electron crystallography (ADT3D/PETS, SIR2014)

  11. CdTe Timepix detectors for single-photon spectroscopy and linear polarimetry of high-flux hard x-ray radiation

    Energy Technology Data Exchange (ETDEWEB)

    Hahn, C., E-mail: christoph.hahn@uni-jena.de; Höfer, S.; Kämpfer, T. [Helmholtz Institute Jena, 07743 Jena (Germany); Institute of Optics and Quantum Electronics, University of Jena, 07743 Jena (Germany); Weber, G.; Märtin, R. [Helmholtz Institute Jena, 07743 Jena (Germany); GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt (Germany); Stöhlker, Th. [Helmholtz Institute Jena, 07743 Jena (Germany); Institute of Optics and Quantum Electronics, University of Jena, 07743 Jena (Germany); GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt (Germany)

    2016-04-15

    Single-photon spectroscopy of pulsed, high-intensity sources of hard X-rays — such as laser-generated plasmas — is often hampered by the pileup of several photons absorbed by the unsegmented, large-volume sensors routinely used for the detection of high-energy radiation. Detectors based on the Timepix chip, with a segmentation pitch of 55 μm and the possibility to be equipped with high-Z sensor chips, constitute an attractive alternative to commonly used passive solutions such as image plates. In this report, we present energy calibration and characterization measurements of such devices. The achievable energy resolution is comparable to that of scintillators for γ spectroscopy. Moreover, we also introduce a simple two-detector Compton polarimeter setup with a polarimeter quality of (98 ± 1)%. Finally, a proof-of-principle polarimetry experiment is discussed, where we studied the linear polarization of bremsstrahlung emitted by a laser-driven plasma and found an indication of the X-ray polarization direction depending on the polarization state of the incident laser pulse.

  12. CdTe Timepix detectors for single-photon spectroscopy and linear polarimetry of high-flux hard x-ray radiation.

    Science.gov (United States)

    Hahn, C; Weber, G; Märtin, R; Höfer, S; Kämpfer, T; Stöhlker, Th

    2016-04-01

    Single-photon spectroscopy of pulsed, high-intensity sources of hard X-rays - such as laser-generated plasmas - is often hampered by the pileup of several photons absorbed by the unsegmented, large-volume sensors routinely used for the detection of high-energy radiation. Detectors based on the Timepix chip, with a segmentation pitch of 55 μm and the possibility to be equipped with high-Z sensor chips, constitute an attractive alternative to commonly used passive solutions such as image plates. In this report, we present energy calibration and characterization measurements of such devices. The achievable energy resolution is comparable to that of scintillators for γ spectroscopy. Moreover, we also introduce a simple two-detector Compton polarimeter setup with a polarimeter quality of (98 ± 1)%. Finally, a proof-of-principle polarimetry experiment is discussed, where we studied the linear polarization of bremsstrahlung emitted by a laser-driven plasma and found an indication of the X-ray polarization direction depending on the polarization state of the incident laser pulse.

  13. Philipp van den Bossche – Sac. Caes. Mai. Phrygiarius

    Czech Academy of Sciences Publication Activity Database

    Bukovinská, Beket

    -, č. 0130 (2015), s. 1-18 ISSN 2190-3328 Institutional support: RVO:68378033 Keywords : Philipp van den Bossche * Prague court * Rudolph II * Kunstkammer Subject RIV: AL - Art, Architecture, Cultural Heritage http://www.riha-journal.org/articles/2015/2015-oct-dec/bukovinska-philipp-van-den-bossche

  14. ICC2007 i Moskva, den 23. internationale kartografikongres

    DEFF Research Database (Denmark)

    Brodersen, Lars

    2007-01-01

    1200 deltagere fra hele verden var samlet i dagene 4. til 9. august 2007 i Moskva for at afholde den 23. internationale kartografikongres. Udgivelsesdato: september......1200 deltagere fra hele verden var samlet i dagene 4. til 9. august 2007 i Moskva for at afholde den 23. internationale kartografikongres. Udgivelsesdato: september...

  15. Empirisme, rationalisme og den moralske følelse

    DEFF Research Database (Denmark)

    Nielsen, Carsten Fogh

    2003-01-01

    Sammenlignende diskussion af David Humes og Immanuel Kants syn på følelsernes rolle for den moralske dom......Sammenlignende diskussion af David Humes og Immanuel Kants syn på følelsernes rolle for den moralske dom...

  16. Laika – den første hund i rummet

    DEFF Research Database (Denmark)

    Alstrup, Aage Kristian Olsen

    2013-01-01

    DETTE ER DEN FØRSTE ARTIKEL I EN SERIE OM FORSØGSDYRENES ROLLE I RUMFORSKNINGEN. DYRENE SPILLEDE EN CENTRAL ROLLE I RUSSERNES OG AMERIKANERNES RUMKAPLØB UNDER DEN KOLDE KRIG. I DAG BRUGES DYRENE TIL MEDICINSKE FORSØG UDFØRT I VÆGTLØS TILSTAND. FØRSTE ARTIKEL HANDLER OM GADEKRYDSET LAIKA, SOM BLEV...

  17. Trump, NATO og den europæiske sikkerhedsarkitektur

    DEFF Research Database (Denmark)

    Ringsmose, Jens; Henriksen, Anders

    Manglende klarhed i den amerikanske linje over for det NATO, landet indtil nu har taget føringen i, vil få konsekvenser for Europa og for Danmarks muligheder og valg. Denne rapport ser på konsekvenserne for den europæiske sikkerhedsarkitektur....

  18. "Den lille havfrue" som digital pop op-bog

    DEFF Research Database (Denmark)

    Mygind, Sarah

    2017-01-01

    Anmeldelse af: DIGITAL POP OP-BOG H. C. ANDERSEN OG BOOKS & MAGIC DEN LILLE HAVFRUE Bog og App til iOS & Android 5......Anmeldelse af: DIGITAL POP OP-BOG H. C. ANDERSEN OG BOOKS & MAGIC DEN LILLE HAVFRUE Bog og App til iOS & Android 5...

  19. A rare presentation of multiple dens invaginatus in maxillary dentition.

    Science.gov (United States)

    Purani, Jigar M; Purani, Hiral J

    2014-08-01

    Dens invaginatus is a developmental disturbance of the tooth and usually occurs in the maxillary lateral incisor of permanent dentition. In this article, a rare case of dens invaginatus affecting multiple permanent maxillary teeth is described. 2014 BMJ Publishing Group Ltd.

  20. Facial cellulitis secondary to dens invaginatus: a case report.

    Science.gov (United States)

    Arsenault, Murielle; Anderson, Ross D; Dyment, Heather; MacLellan, Jennifer; Doyle, Tracy

    2011-04-01

    We describe a case of dens invaginatus in an unerupted permanent maxillary lateral incisor, which led to facial cellulitis in a 10-year-old girl. We review the importance of recognizing dens invaginatus and present strategies for preventing loss of vitality in the affected tooth.

  1. An update on the diagnosis and treatment of dens invaginatus

    NARCIS (Netherlands)

    Zhu, J.; Wang, X.; Fang, Y.; Hoff, J.W. Von den; Meng, L.

    2017-01-01

    Dens invaginatus is a malformation with varying anatomical features, posing challenges to treatment. Early and accurate diagnosis plays a significant role in selecting the appropriate treatment. The diagnosis of teeth with a complex root canal system including dens invaginatus has made progress with

  2. Den Ontologiske Vending i Antropologi og Science and Technology Studies

    DEFF Research Database (Denmark)

    Winthereik, Brit Ross

    2015-01-01

    Formålet med artiklen er at afsøge, hvad videnskabs- og teknologi- studier eller Science and Technology Studies (STS) tilbyder humaniora og samfundsvidenskaberne med det nybrud, der er blevet kaldt den ontologiske vending. Med udgangspunkt i en beskrivelse af den onto- logiske vending i antropologi...

  3. Konservatismen og den højreradikale terror

    DEFF Research Database (Denmark)

    Skov, Christian Houlberg

    2011-01-01

    Den norske højreekstremist Anders Behring Breiviks terror mod det norske samfund har herhjemme ledt til en voldsom debat om blandt andet forbindelsen mellem tonen i debatten og terrorangrebet og forholdet mellem den siden 2001 meget omtalte kulturkonservatisme og Anders Breiviks terrorhandling....... Essayet Konservatismen og den højreradikale terror forsøger dels at skabe klarhed over fronterne i debatten, dels at rette en kritik mod såvel tendensen til at afskrive handlingen som uforståelig som af tendensen til at slå den bredere højrefløjs kritik af multikulturalismen i hartkorn med Breiviks...... højreradikalisme. Artiklen forsøger at vise skellet mellem et konservativ og et højreradikalt ideologisk udgangspunkt, samtidig med, at den fastholder, at konservative ikke per definition er immune over for radikalisering....

  4. Guide til evaluering af Den motiverende samtale

    DEFF Research Database (Denmark)

    Lunde, Anita; Douw, Karla

    UC Lillebælt har på baggrund af kommunale henvendelser udarbejdet et kursusforløb om Den motiverende samtale (DMS). I en efterfølgende evaluering af forløbet har en nedsat projektgruppe udarbejdet en guide til selvevaluering med fokus på kompetenceudvikling af kursusdeltagerne. For at sikre...... dog også andre kommunikationsmodeller, og DMS indgår i fragmenter. Det er særligt delen om ambivalens og forandringshjulet der fremhæves fra DMS. Evalueringen af SEG peger på følgende: Selvevaluering er mest meningsfyldt, når DMS jævnligt anvendes, hvorfor målgruppen for SEG med fordel kan beskrives...

  5. dens dualitet – ‘den gode død’ og ‘den dårlige død’

    DEFF Research Database (Denmark)

    Jacobsen, Michael Hviid; Dalgaard, Karen Marie; Wanseele, Janet Ferrari

    2013-01-01

    Abstract dansk: Igennem de seneste årtier har forestillinger om ‘den gode død’ været en vigtig drivkraft i og inspirationskilde for palliative praksis. I denne artikel argumenterer forfatterne for, at man kan begynde at se konturerne af en skifte væk fra en ensidig fokusering på ’den gode død’ og...

  6. Den portugisiske koloniserings mange stemmer. António Lobo Antunes

    DEFF Research Database (Denmark)

    Larsen, Ingemai

    2007-01-01

    Artiklen analyserer to af den portugisiske forfatter Antonio Lobo Antunes bedst kendte værker og viser hvorledes den portugisiske kolonisering med dens mange ambivalenser og 'stemmer' her italesættes.......Artiklen analyserer to af den portugisiske forfatter Antonio Lobo Antunes bedst kendte værker og viser hvorledes den portugisiske kolonisering med dens mange ambivalenser og 'stemmer' her italesættes....

  7. Kosmetisk kirurgi og den transformérbare krop -en analyse af den amerikanske tv-serie Nip/Tuck

    DEFF Research Database (Denmark)

    Jerslev, Anne

    2009-01-01

    En analyse af krops- og kønsiscenesættelser i den amerikanske tv-serie om kosmetisk kirurgi Nip/Tuck......En analyse af krops- og kønsiscenesættelser i den amerikanske tv-serie om kosmetisk kirurgi Nip/Tuck...

  8. Religionsvetenskapen i övergången från den första till den andra moderniteten

    DEFF Research Database (Denmark)

    Ahlin, Lars

    2009-01-01

    Den tyske sociolog Ulrich Beck er optaget af overgangen fra den første til den anden modernitet. Han argumenterer for at denne overgang fører til at sociologiske kategorier som klasse og familie bliver zombie-kategorier. Det er kategorier skabt under den første modernitet men som stadigvæk er i...... brug i dag under den anden modernitet, til trods for at de er levende døde kategorier. I denne artikel argumenters for at kategorier, begreber, brugt inden for religionsvidenskaben, primært religionssociologien, også kan betragtes som zombie-kategorier. De begreber der diskuteres er religiøse...

  9. Endodontic, surgical and periodontal treatment of dens invaginatus. Case report.

    Science.gov (United States)

    Castellarin, M; Demitri, V; Politi, M

    2001-01-01

    The aim of this paper is to propose a single stage global treatment of endodontic, periapical and periodontal lesions in a lateral maxillary incisor with dens invaginatus. A 24 year-old woman presenting a lateral maxillary incisor with dens invaginatus in association with periapica1 and periodontal lesions underwent simultaneous surgical, endodontic and periodontal regenerative procedures. At 2, 6, 12, 18 months follow-up the radiographic healing appeared to be improved and the periapical lesion healed completely 1 year after surgical intervention. Surgery in association with endodontic and periodontal procedures represents the treatment of choice to maximize long term prognosis in cases of dens invaginatus with chronic periapical and periodontal lesions.

  10. Radiomontagen og dens radiofoniske rødder. Om hørebilledet, den litterære tekstmontage, featuren og den moderne radiomontage

    Directory of Open Access Journals (Sweden)

    Ib Poulsen

    2001-09-01

    Full Text Available Radiomontagen og dens genrevarianter, hørebilledet og featuren har tidligere har tidligere været genstand for interesse fra især den æste- tiske og tekstanalytisk orienterede radioforskning. I denne artikel sæt- tes genren ind i en bredere kontekst, sociokulturelt og medie- og insti- tutionshistorisk. Ledetrådene i den diakrone fremstilling er dels spørgs- målet om genrens historiske og genremæssige rødder, dels en kombi- neret tekstanalytisk og receptionsæstetisk tilgang, der søger at ind- kredse de positioneringer af lytteren, radiomontagen og dens varianter tilbyder. Artiklen er baseret på grundige arkivstudier i DR og på inter- views med nogle af de ’montører’, som har bidraget til udviklingen af montagen, der i kraft af sin radiofoniske spændvidde mest vedholdende og varieret har forsøgt at udforske menneskets livssituation i den moder- ne verden, samtidig med at lytteren er blevet tilbudt en lytteposition, der prioriterer refleksion og eftertanke.

  11. Auf den Schultern von Riesen und Zwergen Einsteins unvollendete Revolution

    CERN Document Server

    Renn, Jürgen

    2006-01-01

    Dies ist die Geschichte von Einsteins unvollendeter Revolution, einer tiefgreifenden Veränderung unserer Begriffe von Raum, Zeit, Materie und Strahlung. Diese Revolution begann in Einsteins Wunderjahr 1905, wurde durch seine allgemeine Relativitätstheorie aus dem Jahre 1915 fortgesetzt und wirkt in den heutigen Versuchen der Wissenschaft, die Entstehung und das Schicksal des Universums zu verstehen, weiter. Vor dem Hintergrund einer historischen Theorie des wissenschaftlichen Fortschritts wird Einsteins bis heute nicht abgeschlossene Revolution als das Ergebnis einer langfristigen Entwicklung des Wissens verständlich. Anhand der spannenden Geschichte von Einsteins Entdeckungen wird nachvollziehbar, warum große Denker wie Einstein weiter gesehen haben als ihre Vorgänger. Sie standen nicht nur auf den Schultern von Riesen, also den wissenschaftlichen Leistungen einzelner großer Vorgänger wie Newton, sondern auch auf den Schultern von "Zwergen", dem wissenschaftlichen Wissen, dem technischen Wissen, und d...

  12. Vidensledelse og den sociale dimension i deling af viden

    DEFF Research Database (Denmark)

    Lauring, Jakob

    2004-01-01

    imidlertid et alternativt syn på viden som i højere grad inddrager den sociale dimension ved vidensdeling - den socialkonstruktivistiske opfattelse. I denne artikel vil jeg beskæftige mig med den socialkonstruktivistiske opfattelse af viden og beskrive, hvorledes denne synsvinkel kan rette fokus mod nogle...... meget væsentlige problemstillinger ved organisatorisk adfærd, som man ofte kommer til at ignorere, hvis man i for høj grad baserer ledelsen på en funktionalistisk opfattelse af viden. Delingen af viden er en aktuel udfordring for anvendelse af viden i forretningssammenhæng. Det er hovedsageligt det, som...... gør vidensbegrebet interessant i forhold til ledelse af virksomheder. - Fokus på de sociale barrierer for deling af viden Jeg vil i det kommende illustrere, hvilke betydninger den sociale dimension i deling af viden kan have for videnledelse. Det vil jeg gøre gennem beskrivelser af to forskellige...

  13. Uddrag af Ph.d.-afhandlingen Den groteske modernisme

    DEFF Research Database (Denmark)

    Lübker, Henrik

    2011-01-01

    Om forholdet mellem "det groteske" og "den groteske modernisme" eksemplificeret i en læsning af E.A. Poes "The Fall of the House of Usher" og flere af Francis Bacons malerier.......Om forholdet mellem "det groteske" og "den groteske modernisme" eksemplificeret i en læsning af E.A. Poes "The Fall of the House of Usher" og flere af Francis Bacons malerier....

  14. Den danske stat og det naturlige fædreland

    DEFF Research Database (Denmark)

    Glenthøj, Rasmus

    2007-01-01

    forsøgte på engang at være loyale over for både det statsborgerlige fædreland, der inkluderede hele den danske stat, og deres naturlige fædreland Norge, som de følte sig forbundet til gennem deres nationalitet og opvækst. Danskerne opererede med den samme dualistiske fædrelandsopfattelse, hvor de både...

  15. Nonsurgical management of two unusual cases of dens in dente

    Directory of Open Access Journals (Sweden)

    Gupta R

    2005-01-01

    Full Text Available The management of two unusual cases of dens invaginatus in a maxillary and a mandibular lateral incisor with a periradicular lesion are reported. The patient presented with pain and localized swelling. Despite the complex anatomy and diagnosis of dens invaginatus, nonsurgical root canal treatment was performed successfully. Furthermore essential clinical considerations and treatment options are suggested. Early diagnosis and management are important to avoid complications.

  16. Dens invaginatus: review, relevance, and report of 3 cases.

    Science.gov (United States)

    Khan, Suleman Abbas; Khan, Saima Yunus; Bains, Vivek K; Bains, Rhythm; Loomba, Kapil

    2012-01-01

    Dens invaginatus is a rare developmental morphoanatomical variation resulting from the infolding of the dental papilla before biological mineralization that allows the invagination of inner dental epithelium. Permanent maxillary lateral incisors are most commonly affected, and the condition is frequently bilateral, but it may also prevail in permanent maxillary central incisors. The purpose of this paper was to provide an overview of the etiopathogenesis, frequency of occurrence, and clinical and radiographic features and to discuss 3 dens invaginatus cases.

  17. CIOs mangler fundamentale egenskaber for at lede den digitale transformation

    DEFF Research Database (Denmark)

    Bjørn-Andersen, Niels

    2016-01-01

    CIOs er dårligt rustet til at gå i spidsen for digital disruption og innovation, advarer den internationale topforsker Joe Peppard med afsæt i analyse af mere end 200 CIO-s personligheder......CIOs er dårligt rustet til at gå i spidsen for digital disruption og innovation, advarer den internationale topforsker Joe Peppard med afsæt i analyse af mere end 200 CIO-s personligheder...

  18. Triple dens invaginatus in a single tooth: Rarest of rare case report.

    Science.gov (United States)

    Chhina, Amandeep; Chhina, Kamalpreet; Kaushal, Nitin; Walia, Ira

    2017-01-01

    Dens invaginatus is a rare malformation affecting the teeth. The teeth that are most commonly affected are the permanent maxillary lateral incisors. The mandibular posterior teeth are rarely affected by dens invaginatus. In most of the cases, a single dens invaginatus is seen affecting the tooth. Cases of double dens invaginatus affecting a single tooth are rare, and those of triple dens invaginatus in a single tooth are even rarer. Here, we present a case of a 14-year-old where three dens invaginatus were seen in the mandibular second premolar. This is the fourth case of three dens invaginatus in a single tooth as only three have been reported previously.

  19. Diagnosis and management of a maxillary lateral incisor exhibiting dens invaginatus and dens evaginatus.

    Science.gov (United States)

    Akers, Harry Francis; Henderson, Carolyn Mary; Foley, Michael Anthony

    2014-04-01

    This case report, involving an indigenous Australian, presents the diagnosis and non-surgical endodontic management of a 22 with developmental abnormalities. They include a dens evaginatus and a dens invaginatus that extends to an apical burst in a second truncated root. Cone-beam computed tomography and endodontic microscopy were not available to the clinician. This case report focuses on ambiguities appearing in the literature relating to classification and terminology associated with the abovementioned developmental anomalies. It also demonstrates the need to methodically collect and cautiously interpret available information before initiating endodontic intervention. Axial inclination, distance perception, internal demarcation and spatial awareness, together with an understanding of dental anatomy, embryology and histology and associated physiology and pathology, allowed the clinician to accurately predict the point, the angle and the depth of coronal access. Sensibility of the dentino-pulpal complex was maintained. Critical thinking, experience, innovation, problem-solving and established principles can compensate for inaccessible technologies. © 2014 Australian Society of Endodontology.

  20. Femmes et représentation au Pakistan : voix d'en bas et voix d'en ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Femmes et représentation au Pakistan : voix d'en bas et voix d'en haut. L'initiative Gouvernance démocratique, droits des femmes et égalité entre les sexes du CRDI appuie un ensemble de recherches comparatives visant à déterminer si les institutions de démocratie et de gouvernance tiennent compte des droits des ...

  1. Management of dens invaginatus type III with large periradicular lesion.

    Science.gov (United States)

    Falcao, Luciana de Souza; de Freitas, Priscila Sousa; Marreiro, Raquel de Oliveira; Garrido, Angela Delfina Bittencourt

    2012-01-01

    This study describes a clinical case of type III dens invaginatus with an extensive periradicular lesion treated successfully. Dens invaginatus is a maldevelopment of the dental germ which occurs as a result of the invagination of the enamel organ. These cases may present difficulties with respect to its diagnosis and treatment because of canal morphology. The success of endodontic therapy requires a knowledge of dental anatomy and its anomalies. A 17-year-old female patient is reported presenting right maxillary lateral incisor (tooth no. 7) classified as type III dens invaginatus with necrotic pulp and presence of an extensive radiolucid lesion. Endodontic treatment was recommended for tooth. However, intracanal exudate was present, suggesting a resistant infection. Enucleation of the lesion was performed as a complementary approach. The root canal obturation was carried out by the gutta-percha thermoplastification technique with root canal sealer, followed by restoration of the tooth. Healing of the lesion with hard tissue formation was confirmed at follow-up. A combination of endodontic and surgical treatments were fundamental to the maintenance of the tooth. The treatment was considered successful. Root canal therapy of dens invaginatus should be based on a thorough clinical and radiographic evaluation. The knowledge of classification and anatomical variations of teeth with dens invaginatus are of great importance for correct treatment.

  2. American black bear denning behavior: Observations and applications using remote photography

    Science.gov (United States)

    Bridges, A.S.; Fox, J.A.; Olfenbuttel, C.; Vaughan, M.B.

    2004-01-01

    Researchers examining American black bear (Ursus americanus) denning behavior have relied primarily on den-site visitation and radiotelemetry to gather data. Repeated den-site visits are time-intensive and may disturb denning bears, possibly causing den abandonment, whereas radiotelemetry is sufficient only to provide gross data on den emergence. We used remote cameras to examine black bear denning behavior in the Allegheny Mountains of western Virginia during March-May 2003. We deployed cameras at 10 den sites and used 137 pictures of black bears. Adult female black bears exhibited greater extra-den activity than we expected prior to final den emergence, which occurred between April 12 and May 6, 2003. Our technique provided more accurate den-emergence estimation than previously published methodologies. Additionally, we observed seldom-documented behaviors associated with den exits and estimated cub age at den emergence. Remote cameras can provide unique insights into denning ecology, and we describe their potential application to reproductive, survival, and behavioral research.

  3. Fra 1800-tals familie til den moderne familie

    DEFF Research Database (Denmark)

    Christoffersen, Mogens

    2004-01-01

    Sociologer som Talcot Parsons og William J. Goode mente, at konsekvensen af industrialiseringen også ville blive en indskrænkning af intimiteten og kontakten mellem kernefamilien og den øvrige slægt. En lang række af de funktioner, der blev varetaget af familie og slægt, blev overtaget af det...... omgivende samfund (fx børnenes uddannelse og alderdomsforsørgelsen). Nutidens samfund med en høj geografisk og social mobilitet skulle ydermere bidrage til en isolation af kernefamilien i forhold til den øvrige slægt. Andre sociologer fremhæver den individuelle frihed, som denne udvikling medfører for de...

  4. INTEGRAL entdeckt den Gamma-Himmel: Gamma-Astronomie

    Science.gov (United States)

    Schönfelder, Volker

    2004-11-01

    Das Gamma-Weltraumteleskop INTEGRAL der Europäischen Weltraumbehörde, ESA, hat in den ersten 15 Monaten seiner Mission eine Fülle interessanter, neuer Ergebnisse geliefert. Hauptinstrumente an Bord sind das hoch auflösende Spektrometer SPI und das Spektrometer IBIS. Hinzu kommt je ein Monitor für den Röntgen- und optischen Bereich. Die wichtigsten neuen Erkenntnisse stammen vor allem aus dem Bereich harter kompakter Röntgenquellen und aus dem Bereich der Gammalinien-Spektroskopie. Mit INTEGRAL wurde es erstmals möglich, den diffusen galaktischen Hintergrund zum Teil mit Einzelquellen identifizieren zu können. Ferner ließ sich in der Umgebung des galaktischen Zentrums die 511-keV-Linie von annihilierenden Positronen und Elektronen nachweisen. Schließlich trägt INTEGRAL auch entscheidend zum Studium der geheimnisvollen Gamma Ray Bursts bei.

  5. A rare case of dens invaginatus in a mandibular canine.

    Science.gov (United States)

    George, Roy; Moule, Alexander J; Walsh, Laurence J

    2010-08-01

    Dens invaginatus (dens in dente) is a common dental anomaly with a reported prevalence of between 0.04% and 10%. It typically affects permanent maxillary lateral incisors, central incisors and premolars. These developmental lesions are less common in mandibular teeth and are extremely rare in canines and molars. This report describes a rare case of dens invaginatus (Oehlers type II) in a permanent mandibular canine. The tooth was mature with a closed apex and showed apical pathosis. The tooth was treated endodontically using a non-surgical technique with hand endodontic files, and then followed up after a period of 8 months. A follow-up radiograph showed some healing of the lesion.

  6. Arkitektur og plan i den danske velfærdsby 1950-1990

    DEFF Research Database (Denmark)

    Pedersen, Poul Bæk

    2005-01-01

    Den danske arkitektur- og planhistorie fra 1950 til 1990 'genskrives' i denne bog ud fra et sammenhængende arkitektur- og byperspektiv. Afsættet er en typologisk forståelse af den danske by, der rummer både den historiske by og de nyere bydele.......Den danske arkitektur- og planhistorie fra 1950 til 1990 'genskrives' i denne bog ud fra et sammenhængende arkitektur- og byperspektiv. Afsættet er en typologisk forståelse af den danske by, der rummer både den historiske by og de nyere bydele....

  7. Dauerquadrat-Untersuchungen in den Allgäuer Alpen

    OpenAIRE

    Runge, Fritz

    1988-01-01

    ln den Jahren 1977-1983 wurden in den Alpen südlich von Oberstdorf/Allgäu 5 Dauerquadrate eingerichtet. Sie lagen in einer Schwemmlingsflur, in einem Alpenrosen-Gebüsch, in einer Alpendost-Hochstaudenflur bzw. einem Geißbart-Schluchtwald, in einem Grünerlen-Busch und einem Silberblatt-Scluchtwald. Die Änderungen der Vegetation dieser in 840 bis 1755 m Höhe gelegenen Dauerboebachtungsflächen sind in 5 Tabellen dokumentiert. Between 1977 and 1983 five permanent plots were established at 840 ...

  8. Die Umweltschäden und Entsorgungsprobleme des russischen Nuklearkomplexes

    OpenAIRE

    Kronfeld-Goharani, Ulrike

    2002-01-01

    "Als Nachfolgestaat der ehemaligen Sowjetunion mit ihrer gigantischen Nuklearindustrie zählt Russland heute zu den Ländern, in denen sich große Mengen Nuklearmüll angereichert haben und einzelne Regionen des Landes von radioaktiven Kontaminationen besonders stark betroffen sind. Ungeachtet dessen änderte im Juni 2001 das russische Parlament das Umweltgesetz, um verbrauchten Nuklearbrennstoff aus dem Ausland in großen Mengen zu importieren. Während Befürworter der Gesetzesänderungen den Import...

  9. Kurz zum Klima: Zu viel Salz verdirbt den Boden

    OpenAIRE

    Zimmer, Markus; Lippelt, Jana; Frank, Jonas

    2012-01-01

    Der zunehmende Einsatz von Anlagen zur Bewässerung sowie mangelnde Erfahrungswerte und Unkenntnis über den richtigen Einsatz der künstlichen Bewässerung haben in den letzten Jahrzehnten zu einer massiven Zunahme der Versalzung des Bodens geführt. Durch diese Bodenversalzung werden weite Flächen für die Landwirtschaft unbrauchbar. Sie sind nur durch hohen Aufwand und Kosten wieder renaturierbar. Der Beitrag in der Reihe »Kurz zum Klima« gibt einen Überblick über die Versalzung in Anbaugebiet...

  10. Facial Cellulitis Arising from Dens Evaginatus: A Case Report

    Directory of Open Access Journals (Sweden)

    Chun-Ming Chen

    2005-07-01

    Full Text Available Dens evaginatus is a developmental anomaly that produces a tubercle on the occlusal surface of a tooth. It is found most frequently in the mandibular premolars. The occlusal tubercle easily causes occlusal interferences. Attrition or fracture of the tubercle can lead to pulpitis, pulp necrosis, periapical pathosis, and periapical infection. This case report illustrates the treatment of facial cellulitis arising from dens evaginatus with open apex. Calcium hydroxide was used for the apexification procedure. One year after canal obturation, radiography revealed no apical pathosis and the apical seal was evident.

  11. Financial Inclusion: Reformen in den Bereichen Verbraucherschutz und finanzielle Allgemeinbildung

    OpenAIRE

    Christa Hainz

    2011-01-01

    Nicht zuletzt der Mangel an wirksamer Offenlegung von Informationen und irreführende Werbung auf Seiten der Anbieter sowie mangelndes Verständnis bezüglich Finanzprodukten auf Seiten der Konsumenten trugen dazu bei, dass der Markt für Subprime-Hypotheken in den USA zusammenbrach. Eine Verbesserung dieses institutionellen Umfelds sollte deshalb dazu dienen, derart negative Entwicklungen in der Zukunft zu verhindern. Der Beitrag gibt einen Überblick, welche Industrieländer Reformen in den Berei...

  12. APEXIFICATION OF A TOOTH WITH DENS INVAGINATUS (A CASE REPORT

    Directory of Open Access Journals (Sweden)

    Epita Sarah Pane

    2015-08-01

    Full Text Available Dens invaginatus is a developmental malformation of teeth. A successful treatment of a maxillary lateral with dens invaginatus extending to mid root area, incomplete apical closure and large apical radiolucency will be presented. Sixteen months apexification with calcium hydroxide dressing was effective in resolving the problem after ultrasonic debridement, sodium hypochlorite irrigation. A 6-month recall radiograph is presented showing successful healing of the periapical lesion. Conventional endodontic treatment with calcium hydroxide apexification showed a favourable healing and will enhance the prognosis of the tooth.

  13. GULag-konference i Landstingssalen, Christiansborg, den 25. september 2012

    DEFF Research Database (Denmark)

    Frederichsen, Kim; Fledelius, Karsten; Foverskov, Carl Erik

    2012-01-01

    Artikel med referater af indlæg på og samlet vurdering af konference afholdt på Christiansborg om GULag, de sovjetiske KZ-lejre i Stalin-tiden arrangeret af Den Danske Helsinki-Komité for menneskerettigheder, Dansk-Russisk Forening og gulag.dk......Artikel med referater af indlæg på og samlet vurdering af konference afholdt på Christiansborg om GULag, de sovjetiske KZ-lejre i Stalin-tiden arrangeret af Den Danske Helsinki-Komité for menneskerettigheder, Dansk-Russisk Forening og gulag.dk...

  14. Radicular Dens Invaginatus: Report of a Rare Case

    Science.gov (United States)

    Beena, V. T.; Sivakumar, R.; Heera, R.; Rajeev, R.; Choudhary, Kanaram; Panda, Swagatika

    2012-01-01

    Dens invaginatus is a developmental anomaly resulting from invagination of a portion of crown forming within the enamel organ during odontogenesis. The invagination ranges from a slight pitting (coronal type) to an anomaly occupying most of the crown and root (radicular type). Although a clinical examination may reveal a deep fissure or pit on the surface of an anterior tooth, radiographic examination is the most realistic way to diagnose the invagination. The objective of this case presentation is to report a rare case of radicular dens in dente, which is a rare dental anomaly. PMID:22900211

  15. Nonsurgical endodontic treatment of type II dens invaginatus

    Science.gov (United States)

    MA, Rajini; Kaiwar, Anjali; N, Meena; Kumari R, Anitha; Shetty, Ashish; DN, Naveen; N, Shubhashini

    2009-01-01

    The endodontic treatment of teeth with dens invaginatus, characterized by an infolding of enamel and dentin, extending deep into the pulp cavity near the root apex, may be complicated and challenging. The complexity of the internal anatomy may create challenges for the complete removal of diseased pulpal tissue and the subsequent sealing of the canal system. Because of the bizarre root canal anatomy and widely open apex, a combination of nonsurgical and surgical endodontic treatment or extraction is the most common choice of therapy. This article describes case reports of nonsurgical endodontic treatment of Type II dens invaginatus associated with periradicular lesion. PMID:20617071

  16. Radicular Dens Invaginatus: Report of a Rare Case

    Directory of Open Access Journals (Sweden)

    V. T. Beena

    2012-01-01

    Full Text Available Dens invaginatus is a developmental anomaly resulting from invagination of a portion of crown forming within the enamel organ during odontogenesis. The invagination ranges from a slight pitting (coronal type to an anomaly occupying most of the crown and root (radicular type. Although a clinical examination may reveal a deep fissure or pit on the surface of an anterior tooth, radiographic examination is the most realistic way to diagnose the invagination. The objective of this case presentation is to report a rare case of radicular dens in dente, which is a rare dental anomaly.

  17. Skønhed og rædsel i den nye Pharma Science Building

    DEFF Research Database (Denmark)

    Reeh, Henrik

    2016-01-01

    Reportage fra et fælles besøg i den nyligt indviede PharmaScience Building, Københavns Universitet, juni 2016. Teksten om mødet mellem journalist og forsker på den ene side og bygningen og dens brugere på den anden side. Journalist Christoffer Zieler henviser til Henrik Reehs separat offentliggjo......Reportage fra et fælles besøg i den nyligt indviede PharmaScience Building, Københavns Universitet, juni 2016. Teksten om mødet mellem journalist og forsker på den ene side og bygningen og dens brugere på den anden side. Journalist Christoffer Zieler henviser til Henrik Reehs separat...

  18. Hemmelig ransagning og brevstandsning i den digitale virkelighed

    DEFF Research Database (Denmark)

    Lentz, Lene Wacher

    2016-01-01

    Artiklen tager udgangspunkt i sager om databedrageri, hvor betalingskort misbruges til køb på internettet. Politiets adgang til private chatfora på nettet analyseres i forhold til de straffeprocessuelle tvangsindgreb hemmelig ransagning, aflytning og dataaflæsning. Desuden behandler artiklen den ...

  19. Tegnets tid. Fortid, historie og historicitet efter den sproglige vending

    DEFF Research Database (Denmark)

    Simonsen, Dorthe Gert

    I Tegnets tid undersøges nyeste videnskabsteoretiske strømninger og deres betydning for historisk forskning. Forfatteren anvender den franske filosof Jacques Derridas teorier til at nyformulere og genåbne hævdvundne problemstillinger i historien: fortidsbegrebet, fagets kildekritiske tradition og...

  20. Rum, rammer og biblioteker i den virtuelle verden

    DEFF Research Database (Denmark)

    Heilesen, Simon

    2009-01-01

    Med udgangspunkt i en kort introduktion til hvordan rum og rammer gestaltes i den virtuelle 3‐D verden Second Life, undersøger denne artikel, på hvilke måder rum og rammesætning anvendes og opleves i en faglig sammenhæng. Som eksempel anvendes det danske biblioteksprojekt i Second Life, Info Island...

  1. Cloud computing og den strafferetlige beskyttelse af data

    DEFF Research Database (Denmark)

    Mathiasen, Peter Dueholm

    2013-01-01

    Cloud computing er blevet en populær metode for bl.a. at opbevare data. Muligheden for eksempelvis at placere forretningskritiske data på teknisk udstyr, som ejes af den udbyder, der driver cloud computing tjenesten, gør det aktuelt at forholde sig til, om straffeloven i sådanne tilfælde yder et...

  2. An Interview with DOROTHY E. DENNING, Oral History 424

    OpenAIRE

    Yost, Jeffrey R.

    2013-01-01

    Computer Security History Project Computer security pioneer Dorothy Denning discusses her career including her Lattice Model for Computer Security, research on database security, intrusion detection, and other areas, such as her influential textbooks. The interview also addresses computer security research infrastructure and collaborators at various institutions where she worked including Purdue University, SRI International, Digital Equipment Corporation, Georgetown University, and Naval ...

  3. Activity rhythms and distribution of natal dens for red foxes

    Science.gov (United States)

    Wenyang, Zhou; Wanhong, Wei; Biggins, Dean E.

    1995-01-01

    The red fox, Vulpes vulpes, was investigated with snow tracking, radiotracking and directive observation at the Haibei Research Station of Alpine Meadow Ecosystem, Academia Sinica, from March to September 1994. The objectives of this study were to determine the distribution and use of natal dens, activity rhythms, and home range sizes for the foxes.

  4. Når religionen indtager den politiske debat

    DEFF Research Database (Denmark)

    Andersen, Rune

    2009-01-01

    Tidligere var politiske spørgsmål forankret i en sekulær argumentation, men med hændelser som "9/11"og "Muhammedtegningerne" har religionen entreret den offentlige debat. Dette gælder ikke mindst argumentationen om Tyrkiets optagelse i EU, der har sit mest markante udtryk blandt Dansk Folkepartis...

  5. Den za Dnjom võib omanikku vahetada / Dannar Leitmaa

    Index Scriptorium Estoniae

    Leitmaa, Dannar, 1982-

    2008-01-01

    Eesti populaarsemat venekeelset nädalalehte Den za Dnjom välja andva OÜ Merger Meedia juhi Andres Tiisleri sõnul käivad läbirääkimised ajalehe müügiks. Krediidiinfo andmetel on ettevõtte maksuvõlg 1,225 miljonit krooni

  6. God smag og bordskik er den bedste slankekur

    DEFF Research Database (Denmark)

    Andersen, Boris

    2011-01-01

    Rockwool Fondens Forskningsenhed har for nylig offentliggjort rapporten ’Helbred, trivsel og overvægt blandt danskerne’, der viser, at antallet af svært overvægtige i USA og Storbritannien er over dobbelt så stort som i Danmark. Den franske madsociolog Claude Fischler beskæftiger sig med sammenhæ...

  7. Hyekyung Cho: Chinas langer Marsch in den Kapitalismus

    DEFF Research Database (Denmark)

    Czeskleba-Dupont, Rolf

    2006-01-01

    Chos afhandling fra Berlin refereres i hovedtræk. Tre modsætninger tages op i den: 1) mellem 'transitionen' ind i kapitalismen og herredømmet af et kommunistisk parti, hvor det bl.a.viser sig at particentralen fremmer liberaliseringen i kampen mod statsvirksomhederne; 2) mellem integrationen i ve...

  8. Kapitalismens ånd og den kreative etik

    DEFF Research Database (Denmark)

    Stephensen, Jan Løhmann

    hyldes nu det kreative arbejde, de kreative erhverv og den kreative økonomi som eksemplariske scener for udfoldelsen af denne eftertragtede evne, som hævdes at udgøre rygraden i nutidens og ikke mindst fremtidens kulturelle og økonomiske logik. Med afsæt i bl.a. Max Weber samt Luc Boltanski & Eve...

  9. Den naturlige samtale i fremmedsproglig læring

    DEFF Research Database (Denmark)

    Ambjørn, Lone; Troensegaard, Agnete

    2005-01-01

    Formålet med denne artikel er at plædere, ikke alene for bevarelsen af den nye arbejds- og eksamensform, som oparbejdelse af fremmedsproglig samtalefærdighed indebærer, men også for styrkelse af tiltag, der på lignende vis kunne fremme sprogelevernes læringsproces og medansvaret herfor....

  10. Om den sociale og symbolske funktion af uddannelsesevalueringer

    DEFF Research Database (Denmark)

    Nørholm, Morten

    Afhandlingens teoretiske udgangspunkt er hos Émile Durkheim, Pierre Bourdieu, Ulf P. Lund­gren, Staf Callewaert, det konkrete er en række evalueringer af uddannelser til (semi)professioner inden for sundhedssektoren.                I afhandlingen konstrueres den sociale og symbolske funktion af u...

  11. Aktivistisk med forbehold? Danmark, EU og den amerikanske verdensorden

    DEFF Research Database (Denmark)

    Wivel, Anders

    2017-01-01

    reflekterer de globale og europæiske incitamenter. Dansk europapolitik formuleres af danske beslutningstagere som en nødvendighedens politik, men dette udelukker ikke en aktivisme, der ofte fremstår som dristig i sin udfordring af den dominerende tysk-fransk forståelse af EU’s betydning og fremtid....

  12. Historien om den kostbare læringstid

    DEFF Research Database (Denmark)

    Henriksen, Carsten

    2015-01-01

    Danmarkshistorien har aldrig rigtig haft plads til de mindste børn. Men nu fortæller forskere fra DPU for første gang historien om, hvordan nutidens daginstitutioner og den moderne pædagogprofession er blevet til. Overraskende viser det sig, at politikere og pædagogiske tænkere gennem de sidste 2...

  13. Einfluss verschiedener Beladeeinrichtungen auf den Ertrag eines Kombisystems

    DEFF Research Database (Denmark)

    Jordan, Ulrike; Vejen, Klaus

    2002-01-01

    thermosyphonischer Volumenstrom lassen sich daher durch die Konstruktion der Beladeeinheit beeinflussen. Kombispeicher mit verschiedenen Beladeeinrichtungen (intern, extern, thermosyphonisch durchströmt) wurden u.a. bereits von den Solar-Forschungs- und Testinstituten ITW Stutt-gart (z.B. Drück98) und SERC Borlänge...

  14. Den centraleuropæiske fortælling

    DEFF Research Database (Denmark)

    Østergaard, Uffe

    2014-01-01

    Om EU's udvidelse mod øst- og centraleuropa. Om hvordan Hitler og Stalins masseudrydelser har betydet mere for den europæiske identitete og sammenhængskraft end kristendommen, og hvordan antisemitisme er blevet en form for kode og fælles sprog for mennesker, der drømmer om en nationalt eller...

  15. Pulp revascularization of immature dens invaginatus with periapical periodontitis.

    Science.gov (United States)

    Yang, Jie; Zhao, Yuming; Qin, Man; Ge, Lihong

    2013-02-01

    Dens invaginatus is a rare developmental malformation of a tooth caused by the invagination of the tooth crown before biological mineralization occurs. The complex anatomy of these teeth makes nonsurgical endodontic treatment difficult and more so when there is presence of periapical periodontitis with open apex. The endodontic treatment of dens invaginatus is a challenge, especially in the case of periapical periodontitis with open apex. Pulp revascularization is a conservative endodontic treatment that has been introduced in recent years. Presented here is a variant approach for the treatment of immature dens invaginatus type II with periapical periodontitis, which combines filling of the invagination and pulp revascularization. After accessing the pulp chamber, the main canal and the invagination were explored. The root was thoroughly disinfected by irrigating and medication, invagination was filled, and the main canal was revascularized. Then the coronal sealing was made by glass ionomer cement and composite resin. Radiograph taken regularly and computed tomography scan were used to investigate the healing of the periapical lesion and development of the root. In the subsequent follow-up, the periapical lesion was completely eliminated, the open apex was closed, and the wall of the root was thickened. For type II immature dens invaginatus with large periapical lesion, conservative endodontic treatment should be considered before periapical surgery. With sufficient infection control, pulp revascularization can be an effective alternative method. Copyright © 2013 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  16. Endodontic management of dens invaginatus Type IIIb: Case series.

    Science.gov (United States)

    Martins, Jorge N R; da Costa, Rui Pereira; Anderson, Craig; Quaresma, Sérgio André; Corte-Real, Luís S M; Monroe, Adam D

    2016-01-01

    Dens invaginatus may be seen as a developmental malformation. It is characterized by an invagination of the enamel and dentin, creating a lumen inside the affected tooth, which may extend as deep as the apical foramen. Oehlers Type IIIb is considered the most challenging clinical conditions. The purpose of this study is to discuss the nonsurgical endodontic management of vital and necrotic dens invaginatus Type IIIb cases. Due to the complex anatomical consideration of dens invaginatus Type IIIb, endodontic treatment is extremely technique sensitive. A conservative approach was used in a vital case to treat the invaginated lumen only, to preserve the vitality of the pulp, and a more invasive approach was used in a necrotic case to debride the lumen and necrotic pulp for proper disinfection of the root canal system. Although different, all the approaches were successful. The clinical signs and symptoms were resolved. The vital case remains vital after 19 months, and the recall radiographs were able to show satisfactory periapical healing both in vital and necrotic cases. Due to the highly complex anatomy of dens invaginatus Type IIIb, the decision of preserving the pulp vitality may not be related only to pulpal diagnosis but also to the technical requirements of the treatment. Although very technically sensitive, it may be possible to treat the invaginated lumen exclusively, while preserving the vitality of the pulp. Necrotic cases may require a more aggressive approach to achieve a favorable prognosis.

  17. Den Europeiska unionen i en globaliserande värld

    DEFF Research Database (Denmark)

    Manners, Ian James

    2013-01-01

    faktor för att förstå regionala ansträngningar att samordna olika ekonomiska, sociala, miljömässiga och politiska förändringar. Regionalt integrationsarbete och globaliseringen av livsstilar har tillsammans blivit del av den centrala dynamiken i förbindelserna mellan EU och världen. Som Julia Kristeva...

  18. Fractures of the dens complicating ankylosing spondylitis with atlantooccipital fusion.

    Science.gov (United States)

    Miller, F H; Rogers, L F

    1991-05-01

    Patients with ankylosing spondylitis are prone to fractures. Fractures tend to occur in the lower cervical spine disc space. We describe 2 patients with odontoid fractures. Both patients had atlantooccipital fusion which may have increased their susceptibility for dens fractures. One patient had Crohn's disease.

  19. Corporate Social Responsibility i forsyningskæden

    DEFF Research Database (Denmark)

    Liempd, Dennis van

    2007-01-01

    Styring og kontrol af etiske risici i forsyningskæden som en del af virksomhedens samfundsansvar (corporate social re­sponsibility; CSR) er blevet mere og mere vigtig nu til dags. Der er stor national og international fokus på CSR-området, ikke mindst fordi globaliseringen har gjort, at flere...

  20. Polen vor der Middle-Income-Trap? Entwicklungsplan bis 2030 soll den Aufholprozess beschleunigen

    OpenAIRE

    Holtemöller, Oliver; Kämpfe, Martina

    2017-01-01

    Polen hat seinen Abstand gegenüber den entwickelten Marktwirtschaften Westeuropas seit dem Beginn der 1990er Jahre bis heute gemessen am Pro-Kopf-Einkommen stark verringert. Galt das Land in den ersten zwei Jahrzehnten unter den mittelosteuropäischen Ländern als Vorreiter beim Wirtschaftswachstum, so hat sich das Aufholtempo in den letzten Jahren verlangsamt. Die polnische Regierung reagierte darauf mit einem strategischen Entwicklungsplan ('Morawiecki'-Plan), der Maßnahmen und Ziele bis 2030...

  1. KGB : de russiske sikkerhedstjenester fra Ivan den Grusomme til Vladimir Putin

    DEFF Research Database (Denmark)

    Kulavig, Erik

    Om den russiske sikkerhedstjeneste eller det hemmelige politis historie fra starten under Ivan den Grusomme i 1600-tallet, gennem tsarernes Rusland og bolsjevikkernes Sovjetunionenen til Putins periode. Med afstikkere til aktiviteterne uden for Ruslands grænser, herunder i Danmark......Om den russiske sikkerhedstjeneste eller det hemmelige politis historie fra starten under Ivan den Grusomme i 1600-tallet, gennem tsarernes Rusland og bolsjevikkernes Sovjetunionenen til Putins periode. Med afstikkere til aktiviteterne uden for Ruslands grænser, herunder i Danmark...

  2. Asymptomatic ''crowned dens'' calcification in CT images for the craniovertebral junction

    International Nuclear Information System (INIS)

    Kubota, Gen; Mori, Masataka; Fukushima, Tatsuro

    2007-01-01

    Calcification around the odontoid process suggests 'crowned dens' syndrome, when accompanied with acute occipital headache or neck pain and with inflammatory signs. We retrospectively searched for calcification around the odontoid process in routine CT images of 282 patients emcompassing the craniovertebral junction, and found 13 (4.6%) had 'crowned dens' calcifications with neither characteristic symptoms nor signs suggestive for crowned dens' syndrome. Females of older ages frequently showed asymptomatic crowned dens' calcifications. (author)

  3. Multiple dens invaginatus, mulberry molar and conical teeth : case report and genetic considerations

    OpenAIRE

    Sedano, Heddie O.; Ocampo Acosta, Fabian; Naranjo Corona, Rosa I.; Torres Arellano, María Eleuteria

    2009-01-01

    Dens in dente, also known as dens invaginatus and dilated compound odontoma, is a malformation that can occur on primary, permanent, or supernumerary teeth that is characterized by a deep invagination of the surface of a crown or root covered with enamel. This abnormality in tooth morphology generally affect the maxillary lateral incisors but several cases of multiple dens invaginatus have been reported in the literature. A 15 year-old female patient is reported here presenting five dens ...

  4. Management of dens invaginatus type II with periapical lesion: case report.

    Science.gov (United States)

    Uzun, Ismail; Keskin, Cangul; Guler, Bugra; Ozdemir, Ozgur

    2015-01-01

    Dens invaginatus is a developmental anomaly resulting from epithelial invagination of the tooth crown before calcification. Endodontic treatment of teeth affected by dens invaginatusmay be difficult and complex due to aberrant anatomy. Combined orthograde and surgical approaches for successful treatment of dens invaginatus are effective. This report describes the successful treatmentand results atthe 12-month follow-up of a maxillary lateral incisor showing dens invaginatus type II, a large periapical lesion and an open apex by using combined surgical and endodontic treatment.

  5. Non-Surgical Root Canal Treatment of Dens Invaginatus 3 in a Maxillary Lateral Incisor

    OpenAIRE

    Moradi, Saeed; Donyavi, Zakyeh; Esmaealzade, Mohammad

    2008-01-01

    The aim of this case report was to describe the clinical management of an unusual dens invaginatus type 3. A case of dens invaginatus in a maxillary lateral incisor with a periapical lesion is reported. The patient presented with pain and localized swelling. Despite the complex anatomy and diagnosis of dens invaginatus, non-surgical root canal treatment was performed successfully. Key Learning Points: - Dens invaginatus may be presented in different forms, and the etiology of this phenomenon ...

  6. Filosofisk terapi som træning til døden

    DEFF Research Database (Denmark)

    Dræby, Anders

    Den eksistentielfænomenologiske terapi deler den opfattelse med stoicismen, at filosofiens hovedopgave er at hjælpe mennesket med at finde vej i en problematisk verden. Oplægget udforsker desuden et overlap, som består i den indsigt, at terapeutisk udfrielse fra menneskelig lidelse til livsduelig...

  7. Dwellers in dens on sandy bottoms: Ecological and behavioural traits of Octopus vulgaris

    Directory of Open Access Journals (Sweden)

    Ángel Guerra

    2014-09-01

    Full Text Available Four visual censuses targeting Octopus vulgaris living in dens on sandy bottoms were carried out from June to October 2013 in the National Park of the Atlantic Galician Islands (NW Spain. Censuses were undertaken by scuba diving between 5 and 21 m depth in daytime. The total area swept was 13.75 ha. There were no significant differences between octopus presence in dens during open and closed fishing seasons. Depth had a significant negative relationship with occupancy. The average number of dens per 1000 m2 was 3.84±0.84 in June and 3.89 in October. The area per den was 260 m2. Den number estimations varied between 1586 and 2057. The largest number of dens (76.5% was found between 5 and 10 m depth. Den distribution was clumped. No significant differences were found between octopus size classes (small, medium and large and den diameter. Associate dens were observed. There were no significant differences in den diameter and shell types found around the middens. Many dens could be “permanent”. Drilling bivalve shell behaviour is discussed. The surveyed area had around 1100 individuals, mainly small specimens. No significant differences were found between octopus size and depth. Substrate, den type and food abundance and availability (especially razors Ensis arcuatus seem to be the main factors influencing dens and octopus density and distribution. Den availability does not appear to be a limiting factor in this case. Temperature, den availability, predators and fishing pressure influencing density and distribution are discussed. Rodas inlet may be a preferential habitat for O. vulgaris individuals ranging from 200 to 2000 g, but especially small specimens ( ≤ 1000 g.

  8. Non-surgical root canal treatment of dens invaginatus 3 in a maxillary lateral incisor.

    Science.gov (United States)

    Moradi, Saeed; Donyavi, Zakyeh; Esmaealzade, Mohammad

    2008-01-01

    The aim of this case report was to describe the clinical management of an unusual dens invaginatus type 3. A case of dens invaginatus in a maxillary lateral incisor with a periapical lesion is reported. The patient presented with pain and localized swelling. Despite the complex anatomy and diagnosis of dens invaginatus, non-surgical root canal treatment was performed successfully. - Dens invaginatus may be presented in different forms, and the etiology of this phenomenon is not fully understood. - Due to abnormal anatomical configuration, dens invaginatus presents technical difficulties in its clinical management. - Non-surgical root canal treatment can be performed successfully.

  9. A rare presentation of bilateral maxillary dens invaginatus diagnosed using cone beam computed tomography.

    Science.gov (United States)

    Dinapadu, Sainath; Aravelli, Swathi; Pasari, Srikanth; Marukala, Narender Reddy

    2013-01-01

    Dens invaginatus is a developmental variation in the formation of a tooth that causes changes in the internal anatomy of the tooth. The presence of double dens invaginatus is extremely rare. Understanding the type, extension, and complex morphology of dens invaginatus is essential. Diagnosis of this condition using conventional radiographic techniques is not easy. Advanced imaging techniques, such as cone beam computed tomography (CBCT) are very helpful in diagnosis of these complex anatomic variations. In the present case report, we demonstrate the use of CBCT in the evaluation and treatment planning of bilateral maxillary dens invaginatus, of which one presented as a case of double dens.

  10. A Rare Presentation of Bilateral Maxillary Dens Invaginatus Diagnosed Using Cone Beam Computed Tomography

    Directory of Open Access Journals (Sweden)

    Sainath Dinapadu

    2013-01-01

    Full Text Available Dens invaginatus is a developmental variation in the formation of a tooth that causes changes in the internal anatomy of the tooth. The presence of double dens invaginatus is extremely rare. Understanding the type, extension, and complex morphology of dens invaginatus is essential. Diagnosis of this condition using conventional radiographic techniques is not easy. Advanced imaging techniques, such as cone beam computed tomography (CBCT are very helpful in diagnosis of these complex anatomic variations. In the present case report, we demonstrate the use of CBCT in the evaluation and treatment planning of bilateral maxillary dens invaginatus, of which one presented as a case of double dens.

  11. Selection of den sites by black bears in the southern Appalachians

    Science.gov (United States)

    Reynolds-Hogland, M. J.; Mitchell, M.S.; Powell, R.A.; Brown, D.C.

    2007-01-01

    We evaluated selection of den sites by American black bears (Ursus americanus) in the Pisgah Bear Sanctuary, western North Carolina, by comparing characteristics of dens at 53 den sites with availability of habitat characteristics in annual home ranges of bears and in the study area. We also tested whether den-site selection differed by sex, age, and reproductive status of bears. In addition, we evaluated whether the den component of an existing habitat model for black bears predicted where bears would select den sites. We found bears selected den sites far from gravel roads, on steep slopes, and at high elevations relative to what was available in both annual home ranges and in the study area. Den-site selection did not differ by sex or age, but it differed by reproductive status. Adult females with cubs preferred to den in areas that were relatively far from gravel roads, but adult females without cubs did not. The habitat model overestimated the value of areas near gravel roads, underestimated the value of moderately steep areas, and did not include elevation as a predictor variable. Our results highlight the importance of evaluating den selection in terms of both use and availability of den characteristics. ?? 2007 American Society of Mammalogists.

  12. Raccoon (Procyon lotor) diurnal den use within an intensively managed forest in central West Virginia

    Science.gov (United States)

    Owen, Sheldon F.; Berl, Jacob L.; Edwards, John W.; Ford, W. Mark; Wood, Petra Bohall

    2015-01-01

    Intensive forest management may influence the availability of suitable den sites for large den-seeking species, such as Procyon lotor (Raccoon). As part of a Raccoon ecology study on an industrial forest in the Allegheny Mountains of central West Virginia, we radio-tracked 32 Raccoons to 175 diurnal den sites to determine relative use of dens that included cavity trees, rock dens, log piles, slash piles, and exposed limbs. Patterns of den use significantly differed between sexes and among seasons. Overall, we recorded 58 cavity dens in 12 tree species with 7 maternal dens found in 5 tree species. Raccoons selected larger-diameter den trees than available cavity trees and non-cavity trees. Because the abundance of suitable tree cavities is known to influence Raccoon densities and recruitment at fine spatial scales and female Raccoons in this study used tree cavities as maternal den sites, the continued harvest of large-diameter trees (i.e., those capable of developing den cavities) without replacement may impact Raccoon recruitment within intensively managed forests throughout the central Appalachians.

  13. Triple dens invaginatus in a single tooth: Rarest of rare case report

    Directory of Open Access Journals (Sweden)

    Amandeep Chhina

    2017-01-01

    Full Text Available Dens invaginatus is a rare malformation affecting the teeth. The teeth that are most commonly affected are the permanent maxillary lateral incisors. The mandibular posterior teeth are rarely affected by dens invaginatus. In most of the cases, a single dens invaginatus is seen affecting the tooth. Cases of double dens invaginatus affecting a single tooth are rare, and those of triple dens invaginatus in a single tooth are even rarer. Here, we present a case of a 14-year-old where three dens invaginatus were seen in the mandibular second premolar. This is the fourth case of three dens invaginatus in a single tooth as only three have been reported previously.

  14. Den sociala frågans återkomst

    DEFF Research Database (Denmark)

    Petersson, Kenneth; Olsson, Ulf; Krejsler, John B.

    2014-01-01

    Inom samtidens berättelse om Europeisk utbildningspolitik betraktas livslangt lärande och den sociala dimensionen som centrala begrepp för att göra det möjligt att förverkliga den vision, EUROPE 2020 om ett framtida Europa med "smart, hållbar och inkluderande tillväxt", som antogs i 2010 (COM, 2010......, s.1). I denna berättelse betraktas det livslånga lärande som en förutsättning för såväl samhällets som individens lyckosamma utveckling samt för att skapa ett gott samhälle, demokratisk förståelse och ett aktiv medborgerligt deltagande (London Kommuniké 2007)....

  15. Können Statine den Knochenstoffwechsel positiv beeinflussen?

    Directory of Open Access Journals (Sweden)

    Vock L

    2005-01-01

    Full Text Available Statine, potente Inhibitoren der HMG-CoA-Reduktase, werden erfolgreich zur Senkung der Cholesterinblutspiegel eingesetzt. In den letzten Jahren sind jedoch zahlreiche andere Wirkungen der Statine aufgedeckt worden, die möglicherweise für den Knochenstoffwechsel von Bedeutung sind: In vitro konnten faszinierende knochenanabole Wirkungen der Statine bewiesen werden. Welche molekularen Mechanismen für diese Beobachtungen genau verantwortlich sind, ist nach wie vor unklar. Auch konnten in anderen In-vitro-Studien, Tiermodellen und klinischen Studien diese eindrucksvollen Resultate nicht immer bestätigt werden. Das vorliegende Bild der Statine im Knochenstoffwechsel ist uneinheitlich. Viele Fragen bleiben offen. Es fehlen neben genaueren Erkenntnissen über die Eigenschaften der einzelnen Statine auch Resultate besser auf diese Fragestellung zugeschnittener Studien.

  16. Begær, krop og den anden

    DEFF Research Database (Denmark)

    Thøgersen, Ulla

    Med fænomenologisk udgangspunkt fremmes forståelse af begær som lidenskab. Indledes med redegørelse og diskussion af analyser af begær hos Merleau-Ponty, Sartre og Lévinas. Og fortsætter med at skrive om begærets dynamik med fokus på kroppen og den anden......Med fænomenologisk udgangspunkt fremmes forståelse af begær som lidenskab. Indledes med redegørelse og diskussion af analyser af begær hos Merleau-Ponty, Sartre og Lévinas. Og fortsætter med at skrive om begærets dynamik med fokus på kroppen og den anden...

  17. Corporate Social Responsibility i forsyningskæden

    DEFF Research Database (Denmark)

    Liempd, Dennis van

    2007-01-01

    Styring og kontrol af etiske risici i forsyningskæden som en del af virksomhedens samfundsansvar (corporate social re­sponsibility; CSR) er blevet mere og mere vigtig nu til dags. Der er stor national og international fokus på CSR-området, ikke mindst fordi globaliseringen har gjort, at flere...... for hvilke virksomheder, det kan være interessant. Der præsenteres nogle teoretiske tilgange og modeller, som findes i den akademiske litteratur. Endvi­dere diskuteres nogle drivkræfter og forskellige motivatio­ner, som gør, at virksomheder beskæftiger sig med CSR i praksis. Artiklen viser også hvordan man...

  18. Leadership Pipeline på rejse i den offentlige sektor

    DEFF Research Database (Denmark)

    Nielsen, Jeppe; Dahl, Kristian Aagaard

    2015-01-01

    udbredelse af Leadership Pipeline modellen. Forskningslitteraturen om Leadership Pipeline er imidlertid beskeden. Med teoretisk ammunition fra ”idé på rejse” perspektivet og et multi-level case studie i den danske offentlige sektor belyser artiklen udbredelse og implementering af Leadership Pipeline. Ved...... at anvende skiftende teoretiske begreber og henholdsvis zoome-ind (organisationsniveau) og zoome-ud (feltniveau) viser artiklen, hvordan en række gensidigt forbundne teoretiserings- og translationsaktiviteter sikrede Leadership Pipeline legitimitet og fremskyndede dens udbredelse samtidig med, at forskellige...... praksisvarianter af Leadership Pipeline udkrystalliserede sig i offentlige organisationer med hver deres kendetegn og problemdefinitioner. Med afsæt i denne empiri argumenterer vi for, at implementering af Leadership Pipeline udspillede sig i overlappende teoretiserings- og translationsaktiviteter, der forstærkede...

  19. Den monofone lyrik: puisque som eksempel

    DEFF Research Database (Denmark)

    Ægidius, Adam

     Findes der indikationer på, at lyrikken er monofon, sådan som Bakhtine hævdede? Konnektoren puisque bruges i romaner ofte til at skabe dækket direkte tale, mens den – som jeg her viser det –  i lyrik kun iscenesætter digterens egen stemme....... Findes der indikationer på, at lyrikken er monofon, sådan som Bakhtine hævdede? Konnektoren puisque bruges i romaner ofte til at skabe dækket direkte tale, mens den – som jeg her viser det –  i lyrik kun iscenesætter digterens egen stemme....

  20. Erlebten Frauen den Holocaust anders als Männer?

    Directory of Open Access Journals (Sweden)

    Angela Schwarz

    2000-11-01

    Full Text Available Der vorliegende Sammelband basiert auf Vorträgen einer Konferenz aus dem Jahr 1995, auf der nach dem spezifischen Erleben des Holocaust durch Frauen gefragt wurde. In der Regel waren es Zeugnisse von Überlebenden, die die Grundlage für die Analyse von Verhalten und Reaktionen von Frauen bildeten. Diskutiert wurde aber nicht nur über die einzelnen Erfahrungsbereiche jüdischer Frauen in West- und Osteuropa in Zwischenkriegs- und Kriegszeit, sondern ebenso über die Anwendbarkeit der „Gender-Frage“ auf den Holocaust generell. Entstanden ist so ein interessanter Überblick über den aktuellen Stand der Diskussion, der die Grenzen und mehr noch die Chancen eines solchen Zugangs hervortreten läßt.

  1. Entscheidungsmodell für den wirtschaftlichen RFID-Einsatz

    OpenAIRE

    Griemert, Silke

    2010-01-01

    Bedingt durch den ständig zunehmenden Kostendruck wird es für Unternehmen immer wichtiger, Kostensenkungspotenziale systematisch zu identifizieren. Eine von vielen Unternehmen genutzte strategische Option ist die internationale Arbeitsteilung. Kostenvorteile entstehen hier vor allem durch weltweit differierende Arbeitsentgelte und unterschiedliche rechtliche Rahmenbedingungen. Gleichzeitig erhöht sich aber die logistische Komplexität und droht, die Vorteile dieser Strategie zu konterkarieren....

  2. Den fjerde vej: Trumps sejr skaber ny samfundsorden

    DEFF Research Database (Denmark)

    Rasmussen, Martin Møller Boje; Andersen, Torben K.; Kragh, Claus

    2016-01-01

    Bag Donald Trumps uempatiske retorik gemmer sig omridset af et politisk projekt, man kan kalde den fjerde vej. USA’s kommende præsident blander højre- og venstreorienterede mærkesager til et nyt nationalsocialt politisk koncept. Spørgsmålet er, om Trumps fjerde vej er et seriøst bud på en ny...

  3. Den Pædagogiske Refleksionsmodel som sammenhængskraft

    DEFF Research Database (Denmark)

    Voergaard Poulsen, Bettina; Lucht, Camill; Vibholm Persson, Stine

    Den Pædagogiske Refleksions Model (PRM) illustrerer de vidensdimensioner, der indgår i en kvalificeret klinisk beslutning. I projektet 'Sammenhæng på TVÆRS i fremtidens sygeplejeuddannelse (PÅ TVÆRS)" indgår PRM som pædagogisk greb. Der undersøges om PRM skaber sammenhæng for studerendes læring i...

  4. Nonsurgical endodontic treatment of type II dens invaginatus

    OpenAIRE

    MA, Rajini; Kaiwar, Anjali; N, Meena; Kumari R, Anitha; Shetty, Ashish; DN, Naveen; N, Shubhashini

    2009-01-01

    The endodontic treatment of teeth with dens invaginatus, characterized by an infolding of enamel and dentin, extending deep into the pulp cavity near the root apex, may be complicated and challenging. The complexity of the internal anatomy may create challenges for the complete removal of diseased pulpal tissue and the subsequent sealing of the canal system. Because of the bizarre root canal anatomy and widely open apex, a combination of nonsurgical and surgical endodontic treatment or extrac...

  5. Nonconventional Therapeutic Protocol for Type III Dens Invaginatus.

    Science.gov (United States)

    Kunert, Gustavo G; Kunert, Itaborai R; de Figueiredo, José Ap; Barletta, Fernando B; Estrela, Carlos

    2017-03-01

    This study discusses a nonconventional therapeutic protocol for type III dens invaginatus. This condition is a disorder of dental development, caused by the invagination of enamel into coronal and/or radicular dentin structure. This promotes several structural alterations within the dental organ, which offers challenges and difficulties to perform the endodontic treatment when needed. This article reports a clinical case where a conservative approach was adopted to preserve the invagi-nated tooth, and endodontic treatment was performed in the main necrotic canal. Following 21 years of observation, a complete root formation could be seen, with dental pulp preservation of the pulpotomized tooth. Considering the reported difficulties for the treatment of dens invaginatus, conservative measures, such as pulpotomy to preserve the remaining dental pulp may be an excellent alternative to allow less invasive procedures, thus avoiding endodontic surgery. This study discusses a nonconventional therapeutic protocol for type III dens invaginatus. A conservative approach adopted preserved the invaginated tooth, and root canal treatment was performed in the main necrotic canal. Following 21 years of observation, there was complete root formation, with dental pulp preservation of the pulpotomized tooth.

  6. Implementering og anvendelse af nyere ledelsesteknologier i den kommunale sektor

    DEFF Research Database (Denmark)

    Nielsen, Steen; Nielsen, Christian

    2009-01-01

    New Public Management vedrører transformeringen af ledelse i den offentlige sektor, bl.a. ved introduktion af nye krav til de offentlige ledere, herunder at skulle stå til regnskab for ressourceforbrug, kvaliteten af de leverede ydelser, samt en fornuftig anvendelse af skatteborgernes penge. En...... central del af New Public Management bevægelsen er derfor introduktionen af nye økonomistyringsteknikker og ledelsesmodeller. Denne artikel fokuserer på kendskab, udbredelse, prioritering og nytten af sådanne tiltag i kommunalt regi, og sætter fokus på, hvorvidt økonomistyringsteknikker og...

  7. Auswirkungen oraler Carnitingaben auf den Plasmacarnitingehalt beim Warmblutpferd

    OpenAIRE

    Schnitger, Andrea

    2004-01-01

    L-Carnitin, ein körpereigenes Aminosäurederivat, ist für den zellulären Energiestoffwechsel aufgrund seiner Carrierfunktion für die freien Fettsäuren von essenzieller Bedeutung. Über eine positive Beeinflussung des Energiestoffwechsels durch die Zulage von Carnitin bestehen bislang widersprüchliche Ergebnisse. Der gesunde Organismus kann seinen Bedarf durch Eigensynthese und über die Aufnahme aus der Nahrung decken. Während der Carnitingehalt im Blut durch die Zulage von Carnitin stark erhöht...

  8. Type II canal configuration and Type I Dens invaginatus.

    Science.gov (United States)

    Liji, Mele Puthukudy; Chandrababu, Krishnankutty; Kumar, Maroli Ramesh; Jayashree, Santhadevi

    2014-07-01

    The prevalent notion about maxillary central incisor with normal external morphology is a tooth with single root and root canal. A case in which all four maxillary incisors were having Type II canal configurations (Vertucci's classification) is reported, in addition, the lateral incisors revealed dens invaginatus with a Type I pattern as suggested by Ohler's classification and a large periapical lesion was seen in relation to the right lateral incisor. The diagnosis was confirmed with the aid of spiral computed tomography (CT) and canals obturated. Nonsurgical healing of the lesion was assessed by reviewing the case at prefixed intervals of time.

  9. Bilateral dens invaginatus in the mandibular premolars - Diagnosis and treatment.

    Science.gov (United States)

    Kharangate, Nupur; Figueiredo, Nigel R; Fernandes, Marina; Lambor, Rajan

    2015-01-01

    Dens invaginatus (DI) is a developmental anomaly that results from an infolding of the dental papilla during tooth development and simulates the appearance of a tooth within another tooth. It shows a wide spectrum of variations in morphology and usually affects the maxillary lateral incisors. This study presents an unusual case of an Oehlers' Type I DI involving the bilateral mandibular first and second premolars, which presented as an incidental radiographic finding in the first premolars and was associated with a periapical lesion in the second premolars which was successfully treated using nonsurgical endodontics.

  10. Bilateral dens invaginatus in the mandibular premolars - Diagnosis and treatment

    Directory of Open Access Journals (Sweden)

    Nupur kharangate

    2015-01-01

    Full Text Available Dens invaginatus (DI is a developmental anomaly that results from an infolding of the dental papilla during tooth development and simulates the appearance of a tooth within another tooth. It shows a wide spectrum of variations in morphology and usually affects the maxillary lateral incisors. This study presents an unusual case of an Oehlers′ Type I DI involving the bilateral mandibular first and second premolars, which presented as an incidental radiographic finding in the first premolars and was associated with a periapical lesion in the second premolars which was successfully treated using nonsurgical endodontics.

  11. Millennials- Den nya och krävande generationen

    OpenAIRE

    Svensson, Josefin; Öljefors, Christine

    2014-01-01

    Psykologisk forskning visar på att unga medarbetare, den så kallade Millennialgenerationen, efterfrågar en annan typ av ledarskap än deras äldre föregångare. Syftet med studien var att undersöka unga medarbetares föreställningar om transformativt ledarskap samt i vilken utsträckning dessa föreställningar motiverar dem i arbetet. Hypotes: Transformativt ledarskap är gynnsamt för unga vuxnas motivation på arbetsplatsen jämfört med andra ledarstilar så som laissez-faire och transaktionellt ledar...

  12. Verzwickte Flussgemeinschaft - Warum es so schwierig ist, den Flüssen Raum zu geben

    NARCIS (Netherlands)

    Hartmann, T.

    2011-01-01

    Extreme Hochwasser verursachen enorme Schäden in Flusslandschaften. Flussgemeinschaften müssen künftig den Flüssen mehr Raum geben, um Hochwasser in der Fläche zurückzuhalten, statt in der Höhe (der Deiche) zu bekämpfen. Die Idee „den Flüssen mehr Raum geben“ beschreibt eigentlich etwas

  13. Der Beitrag von Erfahrungen an den Entwicklungsprozessen zur Selbständigkeit

    OpenAIRE

    Panick, Veronika

    1999-01-01

    Mit der Arbeit wird der Versuch unternommen, den Zusammenhängen von Biographie- und individuellen Lernprozessen nachzugehen. Dies erfolgt am Beispiel von acht ostdeutschen ExistenzgründerInnen, die sich nach der Wende in den neuen Bundesländern im Lebensmitteleinzelhandel selbständig gemacht haben. Hierbei interessiert die Frage, inwieweit Erfahrungen den Lernprozeß behindert oder gefördert haben. Die Ergebnisse der Arbeit bestätigen die hohe Relevanz von Erfahrungen, Handlungsmustern und V...

  14. Endodontic treatment of immature maxillary lateral incisor with two canals: type 3 dens invaginatus.

    Science.gov (United States)

    Altuntaş, Alev; Cınar, Cağdaş; Akal, Neşe

    2010-10-01

    Dens invaginatus is a developmental anomaly. The nonsurgical endodontic treatment of a type 3 dens invaginatus with a large periradicular lesion in a maxillary left lateral incisor of a 10-year-old girl is presented. In spite of difficult diagnosis and treatment of type 3 dens invaginatus, nonsurgical treatment was performed successfully. Resolution of the periradicular lesion and apical closure was observed after 1-year follow-up. Copyright © 2010 Mosby, Inc. All rights reserved.

  15. Assessment of the prevalence and characteristics of dens invaginatus in a sample of Turkish Anatolian population

    OpenAIRE

    Cakici, Fatih; Celikoglu, Mevlut; Arslan, Hakan; Topcuoglu, H. Sinan; Erdogan, Aziz Sahin

    2010-01-01

    Objective: The objective of this study was to assess the prevalence and characteristics of dens invaginatus in anterior teeth and to classify the type of dens invaginatus in a sample of Turkish Anatolian population. Study design: A retrospective study was performed using full-mouth periapical and panoramic radiographs of 1012 patients. Maxillary and mandibular anterior teeth were evaluated for the presence and characteristics of dens invaginatus. Statistical evaluation of the presence of ...

  16. Küsten und Klimawandel in den Augen von Touristen : eine Wahrnehmungsanalyse an der deutschen Ostsee

    OpenAIRE

    Hallermeier, Larissa Diane

    2011-01-01

    Aufgrund seiner wirtschaftlichen Bedeutung spielt der Tourismus in Mecklenburg-Vorpommern eine große Rolle. Insbesondere die Küstengebiete sind beliebte Reiseziele. In den letzten Jahren konnte ein kontinuierlicher Anstieg der Ankünfte und Übernachtungen verzeichnet werden. Neben anderen Faktoren werden die regionalen Auswirkungen des Klimawandels jedoch in Zukunft eine Herausforderung für den Tourismussektor darstellen. Die globale Erwärmung wird für den Strand- und Badetourismus sowohl nega...

  17. Den økonomiske teoris rødder - fra Aristoteles til Lucas

    DEFF Research Database (Denmark)

    Olesen, Finn; Pedersen, Kurt

    I denne bog, "Den økonomiske teoris rødder - fra Aristoteles til Lucas", belyses den økonomiske teoris udvikling fra de første spæde græske forsøg godt 400 år f. Kr. helt op til vores egen samtid med en præsentation af moderne makroteori. Samtidig forsøger fremstillingen at sætte den økonomiske...

  18. Den ecology of Octopus vulgaris Cuvier, 1797, on soft sediment: availability and types of shelter

    Directory of Open Access Journals (Sweden)

    Stelios Katsanevakis

    2004-03-01

    Full Text Available To avoid predation, octopuses select and actively modify shelters (also called dens in the substratum, where they remain most of the time, especially during daylight hours. The main questions that this study deals with are: Is den availability a significant constraint for the distribution of Octopus vulgaris on soft sediment? What kind of dens does O. vulgaris use on soft sediment and what factors affect the selection of one type instead of another? With population density measurements by SCUBA diving and enrichment experiments with artificial dens, we concluded that the availability of solid materials necessary for den construction is a limiting factor for the distribution of O. vulgaris on soft sediment. O. vulgaris used four different types of den on soft sediment: well (a vertical hole in the sediment, rock/stone (the octopus uses a rock or a large stone to dig a cavity under it, shell (an empty shell is used, human origin (a solid material of human origin is used. The relative proportion of the four types of den in the areas studied was: 38.7% human origin, 29.7% well, 21.5% rock/stone, 2.9% shell. Also, 7.3% of the octopuses were found outside their den. The main types of den were found in different relative proportions in relation to the depth, the distance from shore, the octopus size and the granulometry of the sediment.

  19. Forskere giver opskriften på den perfekte lærer

    DEFF Research Database (Denmark)

    Fugl, Marie

    2008-01-01

    Et tæt forhold til den enkelte elev. Evnen til at lede en klasse. Og et vist mål faglig dygtighed. Det er ingredienserne i den gode lærer, der får gode resultater hos eleverne. Interview med professor Sven Erik Nordenbo. Udgivelsesdato: Juni......Et tæt forhold til den enkelte elev. Evnen til at lede en klasse. Og et vist mål faglig dygtighed. Det er ingredienserne i den gode lærer, der får gode resultater hos eleverne. Interview med professor Sven Erik Nordenbo. Udgivelsesdato: Juni...

  20. MANAGEMENT OF DENS INVAGINATUS TYPE II WITH PERIAPICAL LESION: CASE REPORT*

    Directory of Open Access Journals (Sweden)

    İsmail Uzun

    2015-10-01

    Full Text Available Dens invaginatus is a developmental anomaly resulting from epithelial invagination of the tooth crown before calcification. Endodontic treatment of teeth affected by dens invaginatusmay be difficult and complex due to aberrant anatomy. Combined orthograde and surgical approaches for successful treatment of dens invaginatus are effective. This report describes the successful treatmentand results atthe 12-month follow-up of a maxillary lateral incisor showing dens invaginatus type II, a large periapical lesion and an open apex by using combined surgical and endodontic treatment.

  1. The prevalence of anterior teeth with dens invaginatus in the western Mediterranean region of Turkey.

    Science.gov (United States)

    Kirzioğlu, Z; Ceyhan, D

    2009-08-01

    To assess the prevalence and type of dens invaginatus in anterior teeth of a selected population and to report associated dental complications. The records of patients examined in the Department of Paedodontics, Faculty of Dentistry, Süleyman Demirel University, Isparta, Turkey between 1999 and 2006 were screened and a total of 2477 patients who had complete records with satisfactory radiographs were selected. The type of dens invaginatus and the presence of apical pathosis was determined from radiographs. Other dental abnormalities, syndromes and systemic diseases were noted. Variations in crown shape were also recorded. Dens invaginatus was detected in 300 out of 2477 patients, with a prevalence of 12%; 82% of affected patients had dens invaginatus bilaterally. Maxillary lateral incisors were the most affected teeth. The majority of the teeth had normal crown morphology (95%). The most commonly seen type of dens invaginatus was type I (94%). Overall 33% of the patients with type III dens invaginatus and 4% of the patients with type II dens invaginatus had apical pathosis. No associations with other systemic diseases and syndromes and some limited association with hypodontia and dens evaginatus were detected. A careful oral examination, radiographs, a suitable treatment plan and follow-up programme are crucial for early diagnosis and treatment for teeth with dens invaginatus.

  2. Double dens invaginatus in an impacted molariform supernumerary tooth: An unique case

    Directory of Open Access Journals (Sweden)

    Anegundi R

    2008-05-01

    Full Text Available Dens invaginatus is a relatively rare developmental anomaly affecting usually the permanent maxillary lateral incisor. Various factors have been put forward regarding its pathogenesis. Involvement of crown/root has been reported as the coronal and radicular variety of dens invaginatus. One of the rarest variant is the Double dens invaginatus and only a few cases have been reported in the literature.This article focuses on a case of double dens invaginatus in an impacted maxillary anterior supernumerary tooth, the associated complications and its management

  3. Double dens invaginatus in an impacted molariform supernumerary tooth: a unique case.

    Science.gov (United States)

    Anegundi, R T; Kaveri, H; Patil, Shruthi B; Punnya, A

    2008-01-01

    Dens invaginatus is a relatively rare developmental anomaly affecting usually the permanent maxillary lateral incisor. Various factors have been put forward regarding its pathogenesis. Involvement of crown/root has been reported as the coronal and radicular variety of dens invaginatus. One of the rarest variant is the Double dens invaginatus and only a few cases have been reported in the literature.This article focuses on a case of double dens invaginatus in an impacted maxillary anterior supernumerary tooth, the associated complications and its management.

  4. Effekte oraler Vitamin-B12-Substitution auf den Stoffwechsel und den Gesundheitsstatus bei Milchkühen

    OpenAIRE

    Obitz, Kristin

    2015-01-01

    Einleitung: Vitamin B12 hat wichtige Funktionen im Energiestoffwechsel sowie bei der Erythropoese. Beide Funktionskreise werden bei Hochleistungskühen besonders beansprucht und können bei Belastungen und ungenügender Vitamin-B12-Versorgung Ausgangspunkt für klinische Störungen werden. Ziele der Untersuchungen: In den vorliegenden Studien wurde der Fragestellung nachgegangen, wie sich die Vitamin-B12-Konzentration im Blutserum von Milchkühen in der Frühlaktation verhält und welche Zusammen...

  5. Digital kommunikation med den offentlige sektor: Styrelser og statslige institutioner

    DEFF Research Database (Denmark)

    Berger, Jesper Bull; Andersen, Kim Normann

    digital postkasse, som borgerne kunne skrive til. I denne undersøgelse sættes der fokus på myndighedernes besvarelse af den digitale post. Digital post blev bl.a. etableret som et alternativ til almindelig e-mail for at det offentlige kan kommunikere med borgere og virksomheder på en sikker måde, dvs....... uden at uvedkommende kan få adgang til følsomme oplysninger. Fokus for undersøgelsen er hvordan håndterer myndighederne besvarelserne i den digitale postkasse: svarer de på digital post og e-mail, hvor hurtigt svarer de og er svarene brugbare? Vi har også undersøgt besvarelse af e-mail, dels...... for at kunne sammenligne de to digitale kanaler og for at kunne sammenligne med en tidligere undersøgelse af digital kommunikation med det offentlige. Herudover er der tidligere gennemført en undersøgelse af e-mail svar og svartider i New Zealand og Australien. De danske resultater fra e-mail undersøgelsen...

  6. AC-arbejdskraft i den vestlige del af Region Midtjylland

    DEFF Research Database (Denmark)

    Filges, Trine; Holt, Helle

    Denne rapport belyser muligheder og barrierer for AC-arbejdskraft i den vestlige del af Region Midtjylland. Undersøgelsen viser, at ca. 8 pct. af virksomhederne, der indgår i undersøgelsen, på interviewtidspunktet ønsker at rekruttere AC-arbejdskraft inden for 6 måneder. Undersøgelsen viser desuden......, at mange af virksomhederne forventer, at AC’eren møder på arbejdspladsen hver dag – og gerne, at de flytter til lokalområdet. Virksomhederne vurderer, at det er en barriere, at AC’erne har svært ved at se en videre karriere i lokalområdet, og at de foretrækker at pendle til arbejdspladsen. Dårlig...... infrastruktur nævnes i den forbindelse også som en barriere. Undersøgelsen bygger på en spørgeskemaundersøgelse blandt virksomheder i kommunerne: Lemvig, Holstebro, Herning, Ringkøbing-Skjern og Struer. Undersøgelsen er bestilt af Beskæftigelsesregion Midtjylland og er finansieret af Region Midtjylland og...

  7. Videnskabsteorien og den reflekterende dømmekraft

    DEFF Research Database (Denmark)

    Jørgensen, Klaus Frovin

    2007-01-01

    I denne artikel diskuterer jeg Immanuel Kants videnskabssyn, som det tager sig ud i Kritik af dømmekraften. Udgangspunktet er erkendelsesteorien og i særdeleshed den såkaldte skemateori. For Kant findes der rene videnskaber og empiriske videnskaber. De rene videnskabers begreber er karakteriseret...... instrumentalisme, der hersker. Der er visse subjektive principper og maximer, som er mere ’naturlige’ og ’rigtige’ end andre. Kants typiske eksempler herpå er ideen om fuldstændig enhed af den videnskabelige erkendelse og ideen om teleologi i naturen – at intet i naturen er tilfældigt, og at alt har et formål....... Artiklen afsluttes ved at perspektivere og sammenstille Kants videnskabsfilosofi med Thomas Kuhns nutidige videnskabsteori. Jeg argumenterer for, at Kants og Kuhns teorier har fundamentale elementer og strukturer til fælles, og at de vigtigste fornuftsmæssige ideer og principper hos Kant går igen i Kuhns...

  8. Bilateral dens invaginatus in the mandibular premolar region

    Directory of Open Access Journals (Sweden)

    Canger Emin

    2009-01-01

    Full Text Available Dens invaginatus (dens in dente, DI is a rare developmental anomaly resulting from invagination of a portion of the crown rare. It is an important dental anomaly due to the possible pulpal involvement. DI can be detected clinically in a tooth presenting unusual crown morphology or having deep foramen coaceum. Also, clinically, non-suspected affected teeth are commonly diagnosed as an incidental radiographic finding. Presence of DI in the mandibular premolar teeth is unusual. Aims is to introduce a case of bilateral occurrence of DI in mandibular first premolar teeth. A 33- year-old man was referred to our clinic with a chief complaint of severe pain in his lower third molar tooth. Radiographic examination revealed bilateral DI (single at the left, double at the right in mandibular first premolar teeth. The teeth were restored with fissure sealant. Although bilateral appearance of DI is a frequent situation, mandibular occurrence is very rare. Our review of the literature reveals just nine cases of DI, and only one of them is in a premolar tooth.

  9. Der chthonische Dionysos - Zur Wirkmacht des Mythos in den Mysterien

    Directory of Open Access Journals (Sweden)

    Niklas Engel

    2016-12-01

    Full Text Available Dieser Beitrag soll aufzeigen, dass eine chthonische und eschatologische Dimension der dionysischen Göttlichkeit in verschiedenen Riten und Kulten des Gottes nachgewiesen werden kann und dabei keinesfalls mysterienexklusiv ist. Dazu soll der archäologische Befund, der Dionysos mit dem Jenseits und eschatologischen Ho nungen in Verbindung bringt, vorgestellt und untersucht werden. Darauf aufbauend soll belegt werden, dass diese jenseitige Dimension sich sowohl in Riten mit privatem Kern, hier am Beispiel der Oreibasia, als auch in Kultfeiern des ö entlichen Festkanons, wie den Anthesterien, zeigt. Abschließend soll dann Dionysos‘ Funktion in den eleusinischen Mysterien untersucht werden. This paper aims to show that a chthonic and eschatological dimension of dionysiac divinity can be found in various rites and cults of the god and that this is not exclusive for the mysteries. Recent archaeological evidence connecting Dionysos with the afterlife and eschatological expectations will be introduced and analyzed. is dimension manifests itself in rites with a private intent (e.g. the Oreibasia as well as public celebrations of the festival calendar (e.g. the Anthesteria. An analysis of Dionysos’ function in the eleusinian mysteries concludes the overview.

  10. Post-den emergence behavior of polar bears (Ursus maritimus) in Northern Alaska

    Science.gov (United States)

    Smith, T.S.; Partridge, Steven T.; Amstrup, Steven C.; Schliebe, S.

    2007-01-01

    We observed polar bear (Ursus maritimus) maternity den sites on Alaska’s North Slope in March 2002 and 2003 in an effort to describe bears’ post-den emergence behavior. During 40 sessions spanning 459 h, we observed 8 adults and 14 dependent cubs outside dens for 37.5 h (8.2% of total observation time). There was no significant difference between den emergence dates in 2002 (mean = 15 Mar ± 4.1 d) and 2003 (mean = 21 Mar ± 2.1 d). Following initial den breakout, polar bears remained at their den sites for 1.5 to 14 days (mean = 8.1 ± 5.1 d). The average length of stay in dens between emergent periods was significantly shorter in 2002 (1.79 h) than in 2003 (4.82 h). While outside, adult bears were inactive 49.5% of the time, whereas cubs were inactive 13.4% of the time. We found no significant relationships between den emergence activity and weather. Adult polar bears at den sites subjected to industrial activity exhibited significantly fewer bouts of vigilance than denned bears in undisturbed areas (t = -5.5164, df = 4, p= 0.00). However, the duration of vigilance behaviors at sites near industrial activity was not significantly shorter than at the other sites studied (t = -1.8902, df = 4, p = 0.07). Results for these bears were within the range of findings in other studies of denned polar bears.

  11. Den koreanske bølgen - En kulturvitenskapelig studie av sørkoreansk populærkultur, og hvordan den har nådd Vesten

    OpenAIRE

    Kvinge, Kristin Øyvindsdatter

    2016-01-01

    Hensikten med denne oppgaven er å se på den koreanske bølgen, som ofte refereres til som Hallyu. Den tar for seg både Hallyu som innhold og Hallyu som fenomen. Den koreanske bølgen har spredd seg hurtig i løpet av de siste 20 årene, noe som har bidratt til å gjøre Korea til en av de hurtigst økende økonomiene i den moderne tid. Denne oppgaven forsøker å se nærmere på hvordan Hallyu har nådd Vesten, med fokus på Europa og Norge. Før analysen vil oppgaven se nærmere på hv...

  12. Iron to fight the climate collapse. Can algae stem the greenhouse effect?; Eisen gegen den Klimakollaps. Algen gegen den Treibhauseffekt?

    Energy Technology Data Exchange (ETDEWEB)

    Kobbe, B.

    1996-10-01

    This article in popular language describes investigations regarding a possible relationship between phytoplankton growth and the iron content of oceans. Upon aimed ``fertilization`` of an area of 100 square kilometres in the region of the Galapagos islands with 500 kilogrammes of dissolved iron sulfate, an increase in chlorophyll occurring in phytoplankton by a factor of 30 was found in that area. The question is discussed of whether the resulting lowering of the carbon dioxide concentration on a global scale could be a solution to the greenhouse problem. (FK) [Deutsch] Dieser allgemeinverstaendliche Artikel stellt aktuelle Untersuchungen ueber einen moeglichen Zusammenhang zwischen dem Wachstum des Phytoplanktons und dem Eisengehalt der Ozeane dar. Nach gezielter `Duengung` eines 100 km{sup 2} grossen Areals im Gebiet der Galopagos-Inseln mit 500 kg geloestem Eisensulfat wurde dort eine Zunahme des im Phytoplankton vorkommenden Chlorophylls um den Faktor 30 festgestellt. Es wird diskutiert, ob die daraus folgende Absenkung der CO{sub 2}-Konzentration in globalem Massstab eine Loesung fuer den Treibhaus-Effekt sein kann. (FK)

  13. Den Europæiske union er på vej mod at udvikle og implementere europæiske regnskabsstandarder indenfor den offentlige sektor (EPSAS)

    DEFF Research Database (Denmark)

    Pontoppidan, Caroline Aggestam

    2013-01-01

    I maj 2013 var Europa-Kommissionen og Eurostat vært for en konference med formålet at forhandle om den fremtidige udvikling af harmoniserede offentlige regnskabsstandarder (European Public Sector Stardards' EPSAS), som skal anvendes af alle medlemslande i den Europæiske Union. Konfererencen, som ...... blev holdt i Bryssel, samlede internationale organisatoner såsom International Federation of Accountants (FAC), Verdensbanken og International Monetary Fund (IMF) samt interessenter og beslutningstagere fra EU's medlemslande....

  14. 1/49 der einfluss und die stellung des völkerrechts in den ...

    African Journals Online (AJOL)

    Dr Tanya du Plessis

    25. Sept. 2008 ... den früher sozialistischen Staaten Mittel- und Osteuropas eine Art Tabu. Die. Angst vor dem Geist und der Wirkung völkerrechtlicher Instrumente, der ideologische Kampf und vor allem die Sorge um den Schutz der staatlichen. Souveränität verhinderten über Jahrzehnte hinweg das wirkliche Eindringen.

  15. Den site activity patterns of adult male and female swift foxes, Vulpes velox, in Northwestern Texas

    Science.gov (United States)

    Lemons, P.R.; Ballard, W.B.; Sullivan, R.M.; Sovada, M.A.

    2003-01-01

    Activity of Swift Foxes (Vulpes velox) at den sites was studied in northwestern Texas during pup rearing seasons in 2000 and 2001 to determine role of males in parental care. Twenty-four percent of radio-collared females with a potential to breed successfully raised pups to eight weeks of age. We intensively monitored presence and absence of male and female Swift Foxes at two den sites each year. Females were present >2.6 times more at den sites than males during the pup rearing season. Female and male Swift Foxes largely stayed at dens during diurnal hours and were active away from dens during nocturnal and crepuscular hours. Females and males spent 12.4% and 3.0% more time at dens before pups emerged, than after pups emerged, respectively. Following depredation of one male parent, the female spent 29% less time at the den site. Decrease in time spent at the den by the female following loss of her mate suggested that loss of one parent might severely impact recruitment of Swift Foxes. Our observations indicated that intense Coyote (Canis latrans) depredation may severely impact pup-rearing success as well as the parental care within Swift Fox family groups.

  16. Zur Frage der Zähmung des Onager bei den alten Sumerern

    NARCIS (Netherlands)

    Antonius, Otto

    1939-01-01

    Die Veröffentlichung von zwei neuen Funden aus dem Zweistromlande (1, 2, 3) ist geeignet, mehr Licht auf die viel umstrittene Frage zu werfen, welcher Art die von den alten Sumerern im dritten vorchristlichen Jahrtausend als Zugtiere vor den Kriegswagen verwendeten Einhufer angehört haben.

  17. Chlorerede opløsningsmidler i den mættede zone

    DEFF Research Database (Denmark)

    Broholm, K.

    1996-01-01

    Anmeldelse af Jensen,B.K. & Nilsson,B.: Chlorerede opløsningsmidler i den mættede zone. Miljøstyrelsen 1996, (Miljøprojekt 330)......Anmeldelse af Jensen,B.K. & Nilsson,B.: Chlorerede opløsningsmidler i den mættede zone. Miljøstyrelsen 1996, (Miljøprojekt 330)...

  18. Wind interviewet til Berlingske om den stigningen opbakning til EU blandt danskerne

    DEFF Research Database (Denmark)

    Wind, Marlene

    2017-01-01

    Professor og centerleder, Marlene Wind, var tirsdag den 11. juli interviewet til Berlingske om den stigende opbakning til EU blandt danskerne. Wind forklarer blandt andet stigningen med de igangværende Brexit forhandlinger, men også at truslen fra Rusland er med til at forstærke opbakningen til EU...

  19. Polar bear maternal den habitat in the Arctic National Wildlife Refuge, Alaska

    Science.gov (United States)

    Durner, George M.; Amstrup, Steven C.; Ambrosius, Ken J.

    2006-01-01

    Polar bears (Ursus maritimus) give birth during mid-winter in dens of ice and snow. Denning polar bears subjected to human disturbances may abandon dens before their altricial young can survive the rigors of the Arctic winter. Because the Arctic coastal plain of Alaska is an area of high petroleum potential and contains existing and planned oil field developments, the distribution of polar bear dens on the plain is of interest to land managers. Therefore, as part of a study of denning habitats along the entire Arctic coast of Alaska, we examined high-resolution aerial photographs (n = 1655) of the 7994 km2 coastal plain included in the Arctic National Wildlife Refuge (ANWR) and mapped 3621 km of bank habitat suitable for denning by polar bears. Such habitats were distributed uniformly and comprised 0.29% (23.2 km2) of the coastal plain between the Canning River and the Canadian border. Ground-truth sampling suggested that we had correctly identified 91.5% of bank denning habitats on the ANWR coastal plain. Knowledge of the distribution of these habitats will help facilitate informed management of human activities and minimize disruption of polar bears in maternal dens.

  20. Habitat characteristics at den sites of the Point Arena mountain beaver (Aplodontia rufa nigra)

    Science.gov (United States)

    William J. Zielinski; John E. Hunter; Robin Hamlin; Keith M. Slauson; M. J. Mazurek

    2010-01-01

    The Point Arena mountain beaver (Aplodontia rufa nigra) is a federally listed endangered species, but has been the subject of few studies. Mountain beavers use burrows that include a single subterranean den. Foremost among the information needs for this subspecies is a description of the above-ground habitat features associated with dens. Using...

  1. Den Dansk-Engelske Regnskabsordbog/Danish-English Dictionary of Accounting

    DEFF Research Database (Denmark)

    Nielsen, Sandro; Mourier, Lise; Bergenholtz, Henning

    Den Dansk-Engelske Regnskabsordbog. Hver af ordbøgerne har 4.100 opslagsord og ca. 15.000 ordforbindelser. Ordbøgerne bygger primært på den gældende danske årsregnskabslov, danske regnskabsvejledninger og internationale regnskabsstandarder (IAS/IFRS)....

  2. Læringsfremmende evaluering i den lægelige videreuddannelse

    DEFF Research Database (Denmark)

    Madsen, Bjørn; Klitmøller, Anders

    2011-01-01

    Denne statusartikel omhandler evaluering af læger, og hvorledes evaluering kan anvendes som en læringsfremmende foranstaltning. Fokus i artiklen er på den formelle evaluering, som den kommer til udtryk i de kliniske vejledersamtaler. Da de fleste læger i deres karriere fungerer som vejleder, er d...

  3. Dens invaginatus in primary maxillary molar: a rare case report and review of literature.

    Science.gov (United States)

    Bansal, Arpana V; Bansal, Abhinav; Kulkarni, Vinaya Kumar; Dhar, Reema Sharma

    2012-05-01

    Dens invaginatus is a rare developmental anomaly. It is unusual to find this anomaly in primary dentition. Diagnosis of this dens invaginatus is important due to possible pulpal involvement. Not only that, simultaneous presence of other dental anomaly may require long-term treatment planning. Dens invaginatus can be detected clinically in the tooth presenting unusual crown morphology or radiographically as radiopacity within tooth. This article describes one of the first case reports of dens invaginatus in primary maxillary second molar in a 5-year-old female patient. How to cite this article: Bansal AV, Bansal A, Kulkarni VK, Dhar RS. Dens Invaginatus in Primary Maxillary Molar: A Rare Case Report and Review of Literature. Int J Clin Pediatr Dent 2012;5(2):139-141.

  4. Types and forms of sleeping dens of pacas (Cuniculus paca in the upper Itaya river basin

    Directory of Open Access Journals (Sweden)

    Rolando Aquino

    2012-10-01

    Full Text Available This report deals with paca sleeping dens (Cuniculus paca Linnaeus, 1766. The study was conducted between August 2006 and April 2007 and is based on detailed observations. Results indicate that this rodent uses holes in the ground or in fallen trees as sleeping dens. Each of these sleeping dens had two or more orifices and an internal cavity for the "diurnal sleep”. Typically, one orifice was for common use and the rest for the circumstantial escape. According to their form, their localization in the ground, and the number and location of orifices, sleeping dens were classified into four types, of which type A was the most common. The results also indicate a greater concentration of sleeping dens in temporary flooded gallery forest.

  5. The origin of art according to Karl von den Steinen

    Directory of Open Access Journals (Sweden)

    Pierre Déléage

    2015-06-01

    Full Text Available Based on a study of the custom, adopted by ethnologists in the early 20th century, of asking Amerindians of Lowland South America to do drawings in pencil in their notebooks, I explore three forgotten fragments of the history of thinking: the intense debates on the origin of ornaments, opposing an evolutionist and a materialist approach at the end of the 19th century; the theories on the origin of figuration, which I show date back to the important work of Karl von den Steinen regarding the populations of central Brazil; and the publications of ethnologists’ portraits drawn by Indians of the lowlands of South America, a little-known tradition of reverse anthropology serving as a counterpoint to the study of the reception of Amerindian art in Western ethnological literature.

  6. Dens invaginatus in an impacted mesiodens: a morphological study.

    Science.gov (United States)

    Cantín, M; Fonseca, G M

    2013-01-01

    Dens invaginatus (DI) is a dental anomaly originated from invagination of the enamel organ into the dental papilla, during odontogenesis. DI may be associated with other abnormalities such as dysmorphic mesiodens, and this unusual condition may be detected by chance on the conventional radiography. However, the three-dimensional nature and the exact morphological patterns of DI are impossible to appreciate from this method. We present a morphological study of impacted mesiodens in a 9-year-old girl, which the three coronal invaginations were detected only by Cone-Beam Computed Tomography (CBCT) in the pre-surgical examination. CBCT, radiographic and microscopic reproductions allow transfer of images to facilitate cooperation of working groups, examination as well as for teaching purposes.

  7. Dens invaginatus in a geminated maxillary lateral incisor

    Science.gov (United States)

    Pallivathukal, Renjith George; Misra, Alok; Nagraj, Sumanth Kumbargere; Donald, Preethy Mary

    2015-01-01

    Dens invaginatus (DI) and gemination are two developmental abnormalities that are well reported in the dental literature, but their coexistence in a single tooth is rare. Such situations worsen the risk factors associated with these anomalies, and the treatment plan should be customised as they possess altered morphology and anatomy. A 19-year-old girl came for evaluation of a cracked tooth in the front region of the upper jaw. The tooth showed clinical features of gemination and radiographic features of DI, and was diagnosed as DI in geminated maxillary lateral incisor. The differential diagnoses based on clinical appearance without radiographic investigation may warrant the treatment approach if these two abnormalities coexist in a single tooth. The report also highlights the importance of three-dimensional imaging in diagnosis and treatment planning of teeth with altered pulp canal anatomy. There are few reported cases in the literature detailing the treatment options for these two anomalies occurring in the same tooth. PMID:26002668

  8. Die polnischen Bücher (Bücherbestände in den Bibliotheken Roms. Eine Auswahl

    Directory of Open Access Journals (Sweden)

    Ligia ALeksandra Henczel-Wróblewska

    2017-11-01

    Full Text Available Die italienisch-polnischen Beziehungen haben eine lange Geschichte hinter sich. Seit dem Mittelalter, in dem die polnischen Scholaren ihre Ausbildung an den italienischen Universitäten genießen konnten, dominierte darin der wissenschaftliche und bildende Charakter. In den folgenden Jahrhunderten wurde der gegenseitige Kontakt um die künstlerische Ebene erweitert, zumal die polnischen Künstler nach Italien reisten, um bei den besten Meistern ihre Fertigkeiten zu vervollkommnen. Seit dem Ende des 18. bis zur Mitte des 19. Jahrhunderts kam zu den bereits bestehenden, tradierten italienischpolnischen Beziehungen im Bereich der Wissenschaft und Kultur der militärische und der sozialpolitische Aspekt hinzu, und mit der Zeit auch der wirtschaftliche. Auf dem italienischen Boden beteiligten sich die Polen zunächst an den Unabhängigkeitskämpfen, die mit der Vereinigung Italiens (die Risorgimento-Zeit endeten, und nachher an den Waffeninterventionen während der zwei Weltkriege. Seit der Mitte des 20. Jahrhunderts kehrte man zum früheren beiderseitigen Kontakt auf verschiedenen Ebenen zurück.In jeder dieser Zeitspannen wurde die polnische Anwesenheit in Italien in den schriftlichen, ikonografischen, künstlerischen Quellen belegt. Die meisten davon bewährten sich in den Archiven und Bibliotheken Roms, dem Zentrum der europäischen Wissenschaft, Kultur und Christenheit. Erst im 20. Jahrhundert, seit der Entstehung der ersten wissenschaftlichen polnischen Institutionen in Rom und dank der breiten Zusammenarbeit war es möglich, die Polonica, die sich in den römischen Bibliotheken, Archiven, Kulturinstitutionen und Privatbeständen befinden, offiziell zu registrieren, bearbeiten und ordnen. Die schriftlichen Denkmäler aus den vergangenen Jahrhunderten weisen auf eine breite gegenseitige Beziehung sowohl im Bereich des sacrum als auch des profanum hin. Dieses gemeinsame historische Gedächtniserbe zeugt von einer langen Zugehörigkeit Polens zur

  9. An Unusual Type II Dens Invaginatus with Calcified Canals in a Maxillary Lateral Incisor - A Case Report.

    Science.gov (United States)

    Subbiya, Arunajatesan; Geethapriya, Nagarajan; Pradeepkumar, Angambakam Rajasekaran; Vivekanandhan, Paramasivam

    2013-09-01

    Dens invaginatus is a developmental malformation resulting from the invagination of enamel organ into the dental papilla. Management of dens invaginatus is an endodontic challenge. Presence of calcified canals in dens invaginatus makes it even more complicated. Modification of the treatment plan is required to treat such cases. This case report deals with the management of a Type II Dens Invaginatus in a lateral incisor with calcified canals.

  10. An Unusual Type II Dens Invaginatus with Calcified Canals in a Maxillary Lateral Incisor – A Case Report

    OpenAIRE

    Subbiya, Arunajatesan; Geethapriya, Nagarajan; Pradeepkumar, Angambakam Rajasekaran; Vivekanandhan, Paramasivam

    2013-01-01

    Dens invaginatus is a developmental malformation resulting from the invagination of enamel organ into the dental papilla. Management of dens invaginatus is an endodontic challenge. Presence of calcified canals in dens invaginatus makes it even more complicated. Modification of the treatment plan is required to treat such cases. This case report deals with the management of a Type II Dens Invaginatus in a lateral incisor with calcified canals.

  11. Den enes död, den andres bröd : En fallstudie i Fonus kriskommunikation

    OpenAIRE

    Orest Flavet, Sebastian

    2014-01-01

    Denna studie undersöker hur begravningsbyrån Fonus valde att bemöta en kritisk artikel, publicerad i Aftonbladet, med ett pressmeddelande som lades upp på den egna hemsidan. Uppsatsen undersöker först vilka retoriska verktyg som har använts i skapandet av detta meddelande, och sett från Benoits teori om Image Repair, vilka strategier som använts och hur användningen av dessa har sett ut. Därefter söker studien att praktiskt undersöka detta budskap genom att låta en utvald grupp respondenter t...

  12. Rumänische Komponisten zwischen den "gemäßigten", den "radikalen" Moderne und der Postmoderne

    Directory of Open Access Journals (Sweden)

    Sandu-Dediu Valentina

    2006-01-01

    Full Text Available (nemački Debatten um die Begriffe Tradition, Moderne, Avantgarde und Postmoderne, wie sie in der europäischen Exegese erscheinen, sind im rumänischen Raum nicht minder gegenwärtig. Die gemäßigte und die radikale Moderne sowie die Postmoderne werden in diesem Aufsatz auf ihre Verbindung zur Ideologie der rumänischen Musik untersucht. Zum einen werden zwei Richtungen derselben Generation beleuchtet: die "Moderierten" (P. Bentoiu W.G. Berger und die "Radikalen" (Şt. Niculescu, A. Stroe, A. Vieru, T. Olah M. Marbe, D. Constantinescu. Zum anderen wird nachvollzogen, wie sich einige "Radikale" auf den "postmodernen" Weg begeben. Diese Kategorien sind selbstverständlich vom ideologischen Kontext des kommunistischen Rumänien geprägt.

  13. Hibernacula and summer den sites of pine snakes (Pituophis melanoleucus) in the New Jersey pine barrens

    Science.gov (United States)

    Burger, J.; Zappalorti, R.T.; Gochfeld, M.; Boarman, W.I.; Caffrey, M.; Doig, V.; Garber, S.D.; Lauro, B.; Mikovsky, M.; Safina, C.; Saliva, Jorge

    1988-01-01

    We examined eight summer dens (used only in summer) and seven hibernacula (occupied both in winter and summer) of the snake Pituophis melanoleucus in the New Jersey Pine Barrens, comparing above ground characteristics of hibernacula and summer dens with characteristics at nearby random points. Temperatures at the soil surface and at 10 cm depth were significantly warmer, and there was less leaf cover around the random points compared to the entrances of the hibernacula and summer dens. Hibernacula had significantly more vegetation cover within 5 m, more leaf cover over the burrow entrance, and were closer to trees than were summer dens. Most hibernacula and summer dens were beside old fallen logs (73%), the entrance tunnels following decaying roots into the soil. Excavation of the hibernacula and summer dens indicated that most hibernacula appeared to be dug by the snakes and had an average of eight side chambers and 642 cm of tunnels, compared to less than one side chamber and 122 cm of tunnels for summer dens. Except for hatchlings, most snakes in hibernacula were located in individual chambers off the main tunnel; all snakes were at depths of 50-111 cm (X̄ = 79 cm). Pine snakes may select optimum hibernation sites which reduce winter mortality.

  14. Grizzly bear denning and potential conflict areas in the Greater Yellowstone Ecosystem

    Science.gov (United States)

    Podruzny, Shannon; Cherry, Steve; Schwartz, Charles C.; Landenburger, Lisa

    2002-01-01

    Increasing winter use of steep, high-elevation terrain by backcountry recreationists has elevated concern about disturbance of denning grizzly bears (Ursus arctos) in the Greater Yellowstone Ecosystem (GYE). To help identify areas where such conflicts might occur, we developed a spatially explicit model to predict potential denning areas in the GYE. Using a scan area of 630 m around each location, we assigned site attributes to 344 den locations of radio-trackedg rizzly bears from 1975-99. Attributesi dentified as predictorsf or the analysis included elevation, slope, an index of solar radiation, and forest cover. We used the Mahalanobis distance statistic to model the similarity between sites used by denning bears and each cell in the data layers. We used the final Mahalanobis distance model to produce maps of the study area. Potential denning habitat, based upon the model, is abundantw ithin the GYE. Ourr esultsc an be used by land managementa gencies to identifyp otentialc onflict sites and minimize effects of regulated activities on denning grizzly bears. We illustrate how the Gallatin National Forest (GNF) used the model to examine the overlap between potential snowmobile use areas and potential denning habitat as part of a Biological Assessment submitted to the U.S. Fish and Wildlife Service.

  15. Radiographic Study of the Prevalence of Dens Invaginatus in a Sample Set of Turkish Dental Patients

    Directory of Open Access Journals (Sweden)

    Hakan Çolak

    2012-01-01

    Full Text Available Aim: The aim of this study was to determine the prevalence of dens invaginatus in a sample of Turkish dental patients. Materials and Methods: The sample included 6, 912 panoramic radiographs from different Turkish dental patients. The ages of the patients ranged from 18 to 50 years. A tooth was considered having dens invaginatus if an infolding of a radiopaque ribbon-like structure equal in density to enamel was seen extending from the cingulum into the root canal. Maxillary and mandibular teeth were evaluated on panoramic radiographs to determine the type of dens invaginatus using Oehlers′ classification. Results: The overall incidence of patients with dens invaginatus was 0.17%. Dens invaginatus were detected in 15 teeth of a total of 192 150 teeth to give a tooth prevalence of 0.008%. Maxillary lateral incisors were most commonly affected teeth in the mouth (80% of cases, followed by maxillary canine teeth (20% of cases. The bilateral incidence of a symmetrical distribution was 25%. Conclusion: The occurrence of dens invaginatus among this Turkish population was rare. Attention should be paid to the presence of dens invaginatus and the treatment problems associated with it.

  16. Radiographic study of the prevalence of dens invaginatus in a sample set of Turkish dental patients.

    Science.gov (United States)

    Colak, Hakan; Tan, Enes; Aylıkçı, Bahadır Uğur; Uzgur, Recep; Turkal, Mustafa; Hamidi, Mehmet Mustafa

    2012-01-01

    The aim of this study was to determine the prevalence of dens invaginatus in a sample of Turkish dental patients. The sample included 6, 912 panoramic radiographs from different Turkish dental patients. The ages of the patients ranged from 18 to 50 years. A tooth was considered having dens invaginatus if an infolding of a radiopaque ribbon-like structure equal in density to enamel was seen extending from the cingulum into the root canal. Maxillary and mandibular teeth were evaluated on panoramic radiographs to determine the type of dens invaginatus using Oehlers' classification. The overall incidence of patients with dens invaginatus was 0.17%. Dens invaginatus were detected in 15 teeth of a total of 192 150 teeth to give a tooth prevalence of 0.008%. Maxillary lateral incisors were most commonly affected teeth in the mouth (80% of cases), followed by maxillary canine teeth (20% of cases). The bilateral incidence of a symmetrical distribution was 25%. The occurrence of dens invaginatus among this Turkish population was rare. Attention should be paid to the presence of dens invaginatus and the treatment problems associated with it.

  17. Assessment of the prevalence and characteristics of dens invaginatus in a sample of Turkish Anatolian population.

    Science.gov (United States)

    Cakici, Fatih; Celikoglu, Mevlut; Arslan, Hakan; Topcuoglu, Huseyin-Sinan; Erdogan, Aziz-Sahin

    2010-11-01

    The objective of this study was to assess the prevalence and characteristics of dens invaginatus in anterior teeth and to classify the type of dens invaginatus in a sample of Turkish Anatolian population. A retrospective study was performed using full-mouth periapical and panoramic radiographs of 1012 patients. Maxillary and mandibular anterior teeth were evaluated for the presence and characteristics of dens invaginatus. Statistical evaluation of the presence of dens invaginatus related to gender was performed by the Pearson chi-squared test. Dens invaginatus was observed in 13 out of 1012 subjects and in only maxillary lateral incisors. There were no periapical lesions in teeth with types I and II, whereas both of the subjects with type III had apical periodontitis at the time of referral. Males and females were equally affected by dens invaginatus (P=0.98). The anomaly was detected in only maxillary lateral incisors with no gender difference and the most commonly observed type of dens invaginatus was type I (81.25%).

  18. Inducing G2/M Cell Cycle Arrest and Apoptosis through Generation Reactive Oxygen Species (ROS)-Mediated Mitochondria Pathway in HT-29 Cells by Dentatin (DEN) and Dentatin Incorporated in Hydroxypropyl-β-Cyclodextrin (DEN-HPβCD).

    Science.gov (United States)

    Ashwaq, Al-Abboodi Shakir; Al-Qubaisi, Mothanna Sadiq; Rasedee, Abdullah; Abdul, Ahmad Bustamam; Taufiq-Yap, Yun Hin; Yeap, Swee Keong

    2016-10-18

    Dentatin (DEN), purified from the roots of Clausena excavata Burm f., has poor aqueous solubility that reduces its therapeutic application. The aim of this study was to assess the effects of DEN-HPβCD (hydroxypropyl-β-cyclodextrin) complex as an anticancer agent in HT29 cancer cell line and compare with a crystal DEN in dimethyl sulfoxide (DMSO). The exposure of the cancer cells to DEN or DEN-HPβCD complex leads to cell growth inhibition as determined by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay. To analyze the mechanism, in which DEN or DEN-HPβCD complex causes the death in human colon HT29 cancer cells, was evaluated by the enzyme-linked immunosorbent assay (ELIZA)-based assays for caspase-3, 8, 9, and reactive oxygen species (ROS). The findings showed that an anti-proliferative effect of DEN or DEN-HPβCD complex were via cell cycle arrest at the G2/M phase and eventually induced apoptosis through both mitochondrial and extrinsic pathways. The down-regulation of poly(ADP-ribose) polymerase (PARP) which leaded to apoptosis upon treatment, was investigated by Western-blotting. Hence, complexation between DEN and HPβCD did not diminish or eliminate the effective properties of DEN as anticancer agent. Therefore, it would be possible to resolve the conventional and current issues associated with the development and commercialization of antineoplastic agents in the future.

  19. Conservative Management of Type III Dens in Dente Using Cone Beam Computed Tomography

    Directory of Open Access Journals (Sweden)

    K Pradeep

    2012-01-01

    Full Text Available Dens in dente, also known as dens invaginatus, dilated composite odontoma, or deep foramen caecum, is a developmental malformation that usually affects maxillary incisor teeth, particularly lateral incisors. It may occur in teeth anywhere within the jaws, other locations are comparatively rare. It can occur within both the crown and the root, although crown invaginations are more common. The use of cone beam computed tomography (CBCT is very helpful in endodontic diagnosis of complex anatomic variations. In this case we demonstrate the use of CBCT in the evaluation and endodontic management of a Type III dens in dente (Oehler′s Type III.

  20. Den försvunna vaginan : Fetischer och gestaltning i transsexuell amatörinternetpornografi

    OpenAIRE

    Nino Cortés, Daniel M.; Oscarsson, Carolina

    2015-01-01

    Denna uppsats undersöker hur transsexuella individer gestaltas på den amatörinternetpornaografiska webbsidan XVIDEOS - den största internetpornografiska webbsidan. Vi har tittat på hur XVIDEOS som webbsida är med i denna gestaltning och process och hur XVIDEOS och dess innehåll återger en bild av vad den transsexuella kroppen - och sexualiteten förväntas vara. Det effektivaste sättet att föra denna undersökning på, är i vårt fall att analysera mainstream amatörinternetpornografi med transsexu...

  1. Dens invagination: A review of literature and report of two cases

    Science.gov (United States)

    Thakur, Seema; Thakur, Narbir S.; Bramta, Manmohan; Gupta, Mohit

    2014-01-01

    Dens invaginatus occurs as a result of the invagination of the enamel organ. These cases may present difficulties with respect to its diagnosis and treatment because of canal morphology. It frequently leads to caries, pulpal, and periodontal involvement with necrosis and loss of attachment. The knowledge of classification and anatomical variations of teeth with dens invaginatus are of great importance for correct treatment. This article presents two case reports of two different types of dens invaginatus along with profound review of the literature regarding etiology, epidemiology, and histology. It discusses clinical appearance and diagnosis, and it provides guidelines for decision-making and treatment of invaginated teeth. PMID:24678234

  2. Type III Dens Invaginatus with an Associated Cyst: A Case Report and Literature Review.

    Science.gov (United States)

    Meghana, S M; Thejokrishna, P

    2011-01-01

    Dens invaginatus (dens in dente) is a rare malformation with a widely varied morphology. An unusual presentation of a type III dens invaginatus affecting a conical shaped permanent lateral incisor in an 8-year-old female patient is reported. The presence of a pulp stone and a periapical radiolucency further added onto the complexity of the case. The etiology, pathophysiology, association with other dental anomalies as well as the challenges in management of this anomaly are discussed. An extensive literature review is also presented.

  3. Conventional Treatment of Maxillary Incisor Type III Dens Invaginatus with Periapical Lesion: A Case Report.

    Science.gov (United States)

    Borges, Alvaro Henrique; Semenoff Segundo, Alex; Nadalin, Michele Regina; Pedro, Fábio Luís Miranda; da Cruz Filho, Antônio Miranda; Sousa-Neto, Manoel Damião

    2011-01-01

    Dens invaginatus is a developmental dental anomaly clinically characterized by a palatine furrow that can be limited to the coronal pulp or may extend to the radicular apex. The purpose of this paper was to present a clinical case of type III dens invaginatus, identified on the maxillary right central incisor in anterior periapical radiographs, in which the tooth was submitted to conventional endodontic treatment. The results obtained after five years of clinical and radiographic followup demonstrated that conventional endodontic treatment is a clinically viable alternative in cases of type III dens invaginatus.

  4. Schulze and Brand type a-IV dens invaginatus with radicular cyst: A rare case report

    Directory of Open Access Journals (Sweden)

    Rachita Chengappa

    2015-01-01

    Full Text Available Though a clinical examination may reveal a deep fissure or pit on the surface of an anterior tooth, radiographic examination is a more accurate approach to diagnose an invagination. Dens invaginatus is one of the common dental deformities, but the defect involving the root and its association with radicular cyst is still very uncommon. The objective of this case presentation is to report a case of radicular dens in dente, which is a rare dental anomaly. This case report shows that dens invaginatus with an open apex and a radicular cyst can be treated successfully using currently available materials.

  5. Mellem storpolitik og værkstedsgulv. Den danske arbejder - før, under og efter Den kolde krig

    DEFF Research Database (Denmark)

    Nielsen, Niels Jul

    2004-01-01

    for den løn­arbejdende del af befolkningen og dens politiske repræsentanter? Og hvilken rolle er den jævne arbejder blevet tildelt i denne historie? Gennem et nærbillede af Danmarks mest karakteristiske - og politisk iscenesat­te - virksomhed, Burmeister & Wain, undersøges sammenhængen mellem skiften......, 1950ernes og -60ernes koldkrigs­klima med benhårde fronter mellem kommuni­ster og social­demokrater, radikali­seringen omkring 1970, til østblokkens sam­menbrud og de sidste årtiers udvikling, der har betydet, at man i dag ikke længere taler om 'arbejdere'....

  6. Om den uformelle (misbrug af medier i det formelle uddannelsessystem

    Directory of Open Access Journals (Sweden)

    Michael Paulsen

    2008-09-01

    Full Text Available En kombination af uddannelsesforskning og medieforskning anvendes til at forstå gymnasieelevers brug af nye digitale medier. På baggrund af elev- og lærerinterview fremlægger forfatterne en tolkning af mediebrugens betydning for de formelle læreprocesser. Artiklen kommer frem til, at medierne afleder elevernes opmærksomhed og fører til afhængighedsproblemer. Forfatterne fremlægger en tolkning af, hvordan eleverne afledes, og hvad de afledes til. Igennem denne tolkning kommer artiklen frem til, at medier som Messenger ikke blot afleder opmærksomhed, men også dekonstruerer forskellen mellem formelle og uformelle læreprocesser. I modsætning til, hvad eleverne og lærerne selv fortæller, indikerer tolkningen, at der finder en læring sted via elevernes dekonstruerende brug af de nye medier, men at lærerne ekskluderes fra de processer, hvorigennem læringen initieres. Artiklen konkluderer, at der bør udvikles en mediedidaktik, der dels afhjælper elevers afhængighedsproblemer, dels giver lærerne styrke til at spille en aktiv rolle ift. den sociale interaktion og læring, som de nye medier muliggør.

  7. Om den uformelle (misbrug af medier i det formelle uddannelsessystem

    Directory of Open Access Journals (Sweden)

    Michael Paulsen

    2009-06-01

    Full Text Available En kombination af uddannelsesforskning og medieforskning anvendes til at forstå gymnasieelevers brug af nye digitale medier. På baggrund af elev- og lærerinterview fremlægger forfatterne en tolkning af mediebrugens betydning for de formelle læreprocesser. Artiklen kommer frem til, at medierne afleder elevernes opmærksomhed og fører til afhængighedsproblemer. Forfatterne fremlægger en tolkning af, hvordan eleverne afledes, og hvad de afledes til. Igennem denne tolkning kommer artiklen frem til, at medier som Messenger ikke blot afleder opmærksomhed, men også dekonstruerer forskellen mellem formelle og uformelle læreprocesser. I modsætning til, hvad eleverne og lærerne selv fortæller, indikerer tolkningen, at der finder en læring sted via elevernes dekonstruerende brug af de nye medier, men at lærerne ekskluderes fra de processer, hvorigennem læringen initieres. Artiklen konkluderer, at der bør udvikles en mediedidaktik, der dels afhjælper elevers afhængighedsproblemer, dels giver lærerne styrke til at spille en aktiv rolle ift. den sociale interaktion og læring, som de nye medier muliggør.

  8. A realidade da pesquisa no DEN/UFS

    Directory of Open Access Journals (Sweden)

    Delvair de Brito Alves

    1998-12-01

    Full Text Available Esta pesquisa trata do processo de pesquisar no Departamento de Enfermagem e Nutrição da Universidade Federal de Sergipe - DEN/UFS. Ela foi desenvolvida a partir de entrevistas semi estruturadas realizadas com as docentes. Dos materiais obtidos, apresentamos concepções das docentes sobre grupos, linhas e projetos de pesquisa; a produção científica docente e discente; dificuldades e possibilidades relativas à atividade de pesquisar; estratégias que esse Departamento vem utilizando para o desenvolvimento da pesquisa, para a capacitação docente e formação de pesquisadores, além da inserção de estudantes (de graduação e de pós graduação no "mundo científico". Ela conclui pela necessidade de aprofundamento dessa atividade e pela divulgação e aplicação dos seus resultados na prática de enfermagem.

  9. Dens invaginatus in a geminated maxillary lateral incisor.

    Science.gov (United States)

    Pallivathukal, Renjith George; Misra, Alok; Nagraj, Sumanth Kumbargere; Donald, Preethy Mary

    2015-05-22

    Dens invaginatus (DI) and gemination are two developmental abnormalities that are well reported in the dental literature, but their coexistence in a single tooth is rare. Such situations worsen the risk factors associated with these anomalies, and the treatment plan should be customised as they possess altered morphology and anatomy. A 19-year-old girl came for evaluation of a cracked tooth in the front region of the upper jaw. The tooth showed clinical features of gemination and radiographic features of DI, and was diagnosed as DI in geminated maxillary lateral incisor. The differential diagnoses based on clinical appearance without radiographic investigation may warrant the treatment approach if these two abnormalities coexist in a single tooth. The report also highlights the importance of three-dimensional imaging in diagnosis and treatment planning of teeth with altered pulp canal anatomy. There are few reported cases in the literature detailing the treatment options for these two anomalies occurring in the same tooth. 2015 BMJ Publishing Group Ltd.

  10. Grote plaatstrouw van kokmeeuwen Larus ridibundus aan een winterkwartier in Den Haag

    NARCIS (Netherlands)

    Spaans, A.L.

    2000-01-01

    Resultaten van onderzoek met kleurringen bij kokmeeuwen rond de Hofvijver in Den Haag in de winterperiodes van begin jaren zestig: aantalsverloop, leeftijdsverhouding, herkomst, terugvangsten, en waarnemingen op de ringplaats en elders. Uit dit onderzoek, en ander onderzoek in Nederlandse en

  11. [Memel als Brücke zu den baltischen Ländern] / Ralph Tuchtenhagen

    Index Scriptorium Estoniae

    Tuchtenhagen, Ralph, 1961-

    2014-01-01

    Arvustus: Memel als Brücke zu den baltischen Ländern. Kulturgeschichte Klaipedas vom Mittelalter bis ins 20. Jahrhundert. (Tagungsberichte der Historischen Kommission für ost- und westpreussische Landesforschung. Bd. 26)

  12. Leo den Store: Prædiken på st. Laurentius' dag

    DEFF Research Database (Denmark)

    Willert, Niels

    1992-01-01

    Oversættelse af prædiken holdt af den kendte pave Leo den store i 400-tallet. Prædikenen forholder sig til Sankt Laurentius og hans martyrdød.Oversættelsen er et bidrag i en samling af prædikener fra oldkirken. Bogen har en indledning ved professor dr.theol. Christian Thodberg.......Oversættelse af prædiken holdt af den kendte pave Leo den store i 400-tallet. Prædikenen forholder sig til Sankt Laurentius og hans martyrdød.Oversættelsen er et bidrag i en samling af prædikener fra oldkirken. Bogen har en indledning ved professor dr.theol. Christian Thodberg....

  13. Kvinden, diakonissen og sygeplejersken i Den danske Diakonissestiftelses etableringsfase 1863-1873

    DEFF Research Database (Denmark)

    Lauritzen, Jette

    2005-01-01

    danske Diakonissestiftelse’ during the establishing phase from 1863 to 1873. The inner factors are deducted from numerous readings and interpretations of publicly available sources which ‘Den danske Diakonissestiftelse’, and its adherents, published. Thereby the intentions, goals, and motives the authors......Summary – The Woman, the Deaconess and the Nurse in the establishing phase of ‘Den danske Diakonissestiftelse’ 1863-1873 The thesis examines how the female role as deaconess and nurse manifested itself in the establishing phase of ‘Den danske Diakonissestiftelse’( The danish Deaconess House) from...... and nurse in the establishing phase of `Den danske Diakonissestiftelse`, from 1863 to 1873, was partially culturally unacceptable and not culturally recognisable for the bourgeoisie. This meant that the deaconesses had to fight on all fronts to gain recognition and the possibility to further the cause...

  14. Kvinden, diakonissen og sygeplejersken i Den danske Diakonissestiftelses etableringsfase 1863-1873

    DEFF Research Database (Denmark)

    Lauritzen, Jette

    danske Diakonissestiftelse’ during the establishing phase from 1863 to 1873. The inner factors are deducted from numerous readings and interpretations of publicly available sources which ‘Den danske Diakonissestiftelse’, and its adherents, published. Thereby the intentions, goals, and motives the authors......Summary – The Woman, the Deaconess and the Nurse in the establishing phase of ‘Den danske Diakonissestiftelse’ 1863-1873 The thesis examines how the female role as deaconess and nurse manifested itself in the establishing phase of ‘Den danske Diakonissestiftelse’( The danish Deaconess House) from...... and nurse in the establishing phase of `Den danske Diakonissestiftelse`, from 1863 to 1873, was partially culturally unacceptable and not culturally recognisable for the bourgeoisie. This meant that the deaconesses had to fight on all fronts to gain recognition and the possibility to further the cause...

  15. GMO-afgrøder ikke den eneste løsning

    DEFF Research Database (Denmark)

    Jacobsen, Niels; Jacobsen, Sven-Erik; Sørensen, Marten

    2010-01-01

    Er GMO-afgrøder den optimale løsning på klodens fremtidige plantebaserede fødevareproduktion? Findes der alternativer? Det er der to meget klare svar på:GMOafgrøderer ikke den eneste løsning, og ja, der findes mange og langt mere attraktive, bæredygtige løsninger......Er GMO-afgrøder den optimale løsning på klodens fremtidige plantebaserede fødevareproduktion? Findes der alternativer? Det er der to meget klare svar på:GMOafgrøderer ikke den eneste løsning, og ja, der findes mange og langt mere attraktive, bæredygtige løsninger...

  16. Rare association of dens invaginatus with impacted mesiodens – A case report

    Science.gov (United States)

    Patil, Prashant B.; Chaudhari, Smitha G.; Goel, Ankit; Agarwal, Pooja

    2012-01-01

    Mesiodens is a supernumerary tooth occupying the position in the maxillary anterior region. This additional tooth structure may cause disturbance in eruption or position of the adjacent teeth. About 8–25% of supernumerary teeth in the anterior region erupt spontaneously. Un-erupted supernumerary teeth are incidentally identified on a routine radiographic examination. Dens invaginatus is a rare tooth malformation showing an in-folding of enamel and dentine of affected tooth sometimes extending deep into the pulp cavity and the root portion. We report a case of un-erupted mesiodens causing midline diastema of permanent teeth subsequently corrected following extraction of mesiodens. Dens invaginatus was identified affecting the un-erupted mesiodens. It is rare to find dens invaginatus associated with a supernumerary tooth and only 10 such instances of dens invaginatus affecting supernumerary teeth have been reported in the English literature. PMID:25737852

  17. Rare association of dens invaginatus with impacted mesiodens - A case report.

    Science.gov (United States)

    Patil, Prashant B; Chaudhari, Smitha G; Goel, Ankit; Agarwal, Pooja

    2012-01-01

    Mesiodens is a supernumerary tooth occupying the position in the maxillary anterior region. This additional tooth structure may cause disturbance in eruption or position of the adjacent teeth. About 8-25% of supernumerary teeth in the anterior region erupt spontaneously. Un-erupted supernumerary teeth are incidentally identified on a routine radiographic examination. Dens invaginatus is a rare tooth malformation showing an in-folding of enamel and dentine of affected tooth sometimes extending deep into the pulp cavity and the root portion. We report a case of un-erupted mesiodens causing midline diastema of permanent teeth subsequently corrected following extraction of mesiodens. Dens invaginatus was identified affecting the un-erupted mesiodens. It is rare to find dens invaginatus associated with a supernumerary tooth and only 10 such instances of dens invaginatus affecting supernumerary teeth have been reported in the English literature.

  18. Anmerkungen zum Stand und zu den Entwicklungstendenzen der Prozeßkostenrechnung

    OpenAIRE

    Fischer, Thomas

    1994-01-01

    Anmerkungen zum Stand und zu den Entwicklungstendenzen der Prozeßkostenrechnung / A. G. Coenenberg ; Th. M. Fischer. - In: Prozeßkostenrechnung / Wolfgang Männel (Hrsg.). - Wiesbaden : Gabler, 1994. - S. 23-25. - (Kostenrechnungspraxis : Sonderheft ; 1994/1)

  19. [Ulrike Plath. Esten und Deutsche in den baltischen Provinzen Russlands] / Olaf Mertelsmann

    Index Scriptorium Estoniae

    Mertelsmann, Olaf, 1969-

    2013-01-01

    Arvustus: Plath, Ulrike. Esten und Deutsche in den baltischen Provinzen Russlands: Freundheitskonstruktionen, lebenswelten, Kolonialphantasien 1750-1810 (Veröffenlichungen des Nordost-Instituts, Bd. 11.)Harrasowitz. Wiesbaden 2011

  20. Good-Practice-Ansätze für den Dienstleistungseinkauf

    OpenAIRE

    Hänsel, Martin; Hofmann, Erik

    2017-01-01

    Die Performance Excellence Studie des Lehrstuhls für Logistikmanagement der Hochschule St. Gallen (HSG) zeigt auf, was moderne Unternehmen tun müssen, wenn sie den Einkauf von Dienstleistungen zeitgemäss handhaben wollen.

  1. Den danske magtelite bør dæmpe sin begejstring over Macron

    DEFF Research Database (Denmark)

    Ellersgaard, Christoph

    2017-01-01

    Eliten. Den franske præsident, der caster sig selv som en politisk fornyer, er præget af elitære institutioner og netværk gennem hele sin karriere.......Eliten. Den franske præsident, der caster sig selv som en politisk fornyer, er præget af elitære institutioner og netværk gennem hele sin karriere....

  2. Expression of the bacteriophage T4 denV structural gene in Escherichia coli

    International Nuclear Information System (INIS)

    Recinos, A. III; Augustine, M.L.; Higgins, K.M.; Lloyd, R.S.

    1986-01-01

    The expression of the T4 denV gene, which previously had been cloned in plasmid constructs downstream of the bacteriophage lambda hybrid promoter-operator oLpR, was analyzed under a variety of growth parameters. Expression of the denV gene product, endonuclease V, was confirmed in DNA repair-deficient Escherichia coli (uvrA recA) by Western blot analyses and by enhancements of resistance to UV irradiation

  3. Den første Karl Gustav-krig 1657-58

    DEFF Research Database (Denmark)

    Olden-Jørgensen, Sebastian

    2008-01-01

    Artiklen diskuterer den første Karl Gustav-krig i forskellige persketiver og konkluderer, at krigen ikke bør opfattes som et dårligt forberedt og uigennemtænkt forsøg på dansk revanche inden for rammerne af en nordisk rivalisering, men snarere som  en velovervejet satsning og et led i den dansk-s...

  4. Loyalitet i praksis:En etnologisk kulturanalyse af fænomenet den loyale forbruger

    OpenAIRE

    Breddam, Mads Dupont

    2015-01-01

    Loyalitet i praksis – en etnologisk kulturanalyse af fænomenet den loyale forbruger , er en kvalitativ kulturanalyse af, hvordan loyalitet skabes i forbindelse med den danske detailhandels - og andelsorganisation Coop og Coops loyalitetsprogram CoopPlus. Undersøgelserne bygger på et empirisk materiale , som hovedsageligt består af kvalitative interviews med en række medlemmer og medejere af Coop samt med medarbejdere i Coops hovedkvarter i Albertslund . Afhandlingen er en praksiografisk under...

  5. Über den Nachrichtenwert von Friedensjournalismus - Ergebnisse einer experimentellen Studie

    OpenAIRE

    Monika Spohrs

    2006-01-01

    Laut Nachrichtenwertforschung hängt die Publikations- und Lesenswürdigkeit von Nachrichtentexten von den Nachrichtenfaktoren der zu publizierenden Ereignisse ab. Als anerkannte Nachrichtenfaktoren gelten beispielsweise Negativität, Vereinfachung und Personifizierung. Friedensjournalistische Arbeiten weichen von diesen Kriterien oft ab, indem sie versuchen, die berichteten Ereignisse in ihrer Komplexität darzustellen, den Fokus nicht auf negative Ereignisse zu legen und auch strukturellen Them...

  6. Den årlige klining af moskéen i Jenné

    DEFF Research Database (Denmark)

    Andreasen, Jørgen

    2007-01-01

    Danske studerende hjælper med kliningen af den store moské i Jenné under 'Mohammed-krisen'. Jenné er et af UNESCO's 'heritage sites' - en by helt bygget i ler. Vedligeholdelse og årlig klining er nødvendig. Moskeen er den største bygning, lukket for ikke-muslimer. Det danske hold fik adgang til m...

  7. Nonsurgical endodontic management of dens invaginatus with open apex: A case report.

    Science.gov (United States)

    Rani, Nidhi; Sroa, Renu B

    2015-01-01

    Dens invaginatus is a rare malformation with a widely varied morphology. It typically affects permanent maxillary lateral incisors, central incisors, and premolars. This article demonstrates rapid management of type II dens invagination with open apex and large periradicular lesion using calcium hydroxide as intracanal medicament for 1-week followed by apical plug formation with mineral trioxide aggregate Plus and lateral condensation of Gutta-percha. At 24-month follow-up, the patient was asymptomatic and lesion was entirely resolved.

  8. Den europæiske drøm - om EU

    DEFF Research Database (Denmark)

    Østergaard, Uffe

    2007-01-01

    Anmeldelse af: Jeremy Rifkin: Den europæiske drøm (Informations Forlag, 2006). Oversat fra engelsk efter: "The European Dream: How Europe's Vision of the Future Is Quietly Eclipsing the American Dream" (2004)......Anmeldelse af: Jeremy Rifkin: Den europæiske drøm (Informations Forlag, 2006). Oversat fra engelsk efter: "The European Dream: How Europe's Vision of the Future Is Quietly Eclipsing the American Dream" (2004)...

  9. Konfliktrettens anvendelighed i den offentlige sektor set i lyset af OK13

    DEFF Research Database (Denmark)

    Høgedahl, Laust; Ibsen, Flemming

    2015-01-01

    eller mægling. Men der er stor forskel på de præmisser og vilkår som konfliktretten bygger på, når den offentlige - og private sektor sammenlignes. I denne artikel præsenteres en kritisk analyse af brugen af konfliktretten i den offentlige sektor set i lyset af OK13 og lærerlockouten. Artiklen viser...

  10. Køn og kærlighed i Den Hebraiske Bibel og tidlig rabbinsk litteratur

    DEFF Research Database (Denmark)

    Schleicher, Marianne

    2014-01-01

    De religiøse grundlæggertekster synes optaget af at sikre kulturens videreførelse gennem entydiggørelse af køn og kærlighed, men den hebræiske bibel og den tidlige rabbinske litteratur skildrer lige så ofte i de mest dramatiske og poetiske passager køn og kærlighed som komplekse, sammensatte, for...

  11. Remote identification of maternal polar bear (Ursus maritimus) denning habitat on the Colville River Delta, Alaska

    Science.gov (United States)

    Blank, Justin J.

    High resolution digital aerial photographs (1 foot pixel size) of the Colville River Delta, Alaska were examined in 3D, with the use of a digital photogrammetric workstation. Topographic features meeting the criteria required for adequate snow accumulation, and subsequent construction of terrestrial polar bear maternal dens, were identified and digitized into an ArcGIS line shapefile. Effectiveness, efficiency, and accuracy were improved when compared to previous polar bear denning habitat efforts which utilized contact photo prints and a pocket stereoscope in other geographic areas of northern Alaska. Accuracy of photograph interpretation was systematically evaluated visually from the air with the use of a helicopter and physically on the ground. Results show that the mapping efforts were successful in identifying den habitat 91.3% of the time. Knowledge denning habitat can improve and inform decision making by managers and regulators when considering travel and development in the study area. An understanding of polar bear denning habitat extent and location will be a crucial tool for planning activities within the study area in a way that minimizes conflicts with maternal dens.

  12. Complex endodontic treatment of an immature type III dens invaginatus. A case report.

    Science.gov (United States)

    Fregnani, E R; Spinola, L F B; Sônego, J R O; Bueno, C E S; De Martin, A S

    2008-10-01

    To report the endodontic treatment of an immature maxillary central incisor with dens invaginatus. Dens invaginatus is a rare malformation of teeth, probably resulting from an infolding of the dental papilla during tooth development. The present case describes the complex endodontic treatment of a type III dens invaginatus in an immature maxillary central incisor with a necrotic pulp and abscess formation. The initial treatment goal was to achieve apexification of the pseudocanal root and conservative root canal treatment in the main canal. Following 1-year of treatment with calcium hydroxide dressings, radiography revealed a healing response, but no sign of a hard tissue barrier at the apex. Periapical surgery with the placement of a zinc oxide cement (IRM) root-end filling was considered successful at the 4-year follow-up. The complexity of the canal system and open apex in dens invaginatus present a challenge to endodontic treatment. Correct diagnosis and treatment planning are fundamental to treatment of dens invaginatus. Periapical surgery is indicated in cases of unsuccessful apexification in immature teeth with dens invaginatus and nonvital pulp.

  13. Double Dens Invaginatus with Multiple Canals in a Maxillary Central Incisor: Retreatment and Managing Complications.

    Science.gov (United States)

    Zoya, Asma; Ali, Sajid; Alam, Sharique; Tewari, Rajendra K; Mishra, Surendra K; Kumar, Ashok; Andrabi, Syed Mukhtar-Un-Nisar

    2015-11-01

    Dens invaginatus is a developmental anomaly that often presents a perplexing challenge to the endodontist. It involves the maxillary central incisor less commonly than the maxillary lateral incisor. Double dens invaginatus is even rarer. Herein a unique case of dens invaginatus in a maxillary central incisor is presented. The tooth had an inadequate previous root canal treatment. On retreatment, multiple canals and double dens invaginatus were found. The invaginations were Oehlers type 3b and type 2. The complex morphology was diagnosed and confirmed with cone-beam computed tomography imaging and managed with a combined surgical and orthograde approach. Four canals and a blind sac along with an open apex were found. There were many intercommunications between the canals. During the treatment, a complication of a separated instrument occurred, which was managed successfully. The 1-year follow-up shows successful outcome of the treatment. Dens invaginatus may be more complicated than it seems. It needs meticulous treatment by a specialist. Failure or a delay in referring the case to a specialty setting may further increase the complications. With the advancements in equipment and materials, it is possible to save even severe cases of dens invaginatus. Copyright © 2015 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  14. A retrospective study of the prevalence and characteristics of dens invaginatus in a sample of the Turkish population.

    Science.gov (United States)

    Gündüz, Kaan; Çelenk, Peruze; Canger, Emin-Murat; Zengin, Zeynep; Sümer, Pınar

    2013-01-01

    The purpose of this study was to assess the prevalence of dens invaginatus and to classify the types of dens invaginatus in a sample of the Turkish population. A retrospective study was performed using periapical and panoramic radiographs of 5355 patients who presented to the Department of Oral Diagnosis and Radiology at the Ondokuz Mayis University Dentistry Faculty between January 2009 and December 2010. Maxillary and mandibular anterior teeth were evaluated for the presence and characteristics of dens invaginatus. Statistical evaluation of the presence of dens invaginatus related to gender was performed by the Pearson chi-squared test. Dens invaginatus was observed in 116 of 4556 subjects, with a frequency of 2.5%. There was only one periapical lesion in teeth with type I dens invaginatus, but 8.1% of patients with type II and 87.5% of patients with type III dens invaginatus had apical periodontitis at the time of referral. There were 116 (72%) females and 32 (27%) males with dens invaginatus. This data represents the only study carried out in a large population in Turkey, and no dens invaginatus was found in mandibular teeth. The most commonly observed type of dens invaginatus was type I (69.8%).

  15. Heading for the hills: risk avoidance drives den site selection in African wild dogs.

    Directory of Open Access Journals (Sweden)

    Craig R Jackson

    Full Text Available Compared to their main competitors, African wild dogs (Lycaon pictus have inferior competitive abilities and interspecific competition is a serious fitness-limiting factor. Lions (Panthera leo are the dominant large carnivore in African savannah ecosystems and wild dogs avoid them both spatially and temporally. Wild dog young are particularly vulnerable and suffer high rates of mortality from lions. Since lions do not utilize all parts of the landscape with an equal intensity, spatial variation in lion densities can be exploited by wild dogs both during their general ranging behaviour, but more specifically when they are confined to a den with vulnerable young. Since patches of rugged terrain are associated with lower lion densities, we hypothesized that these comparatively safe habitats should be selected by wild dogs for denning. We investigated the relationship between the distribution of 100 wild dog den sites and the occurrence of rugged terrain in four wild dog populations located in Tanzania, Zimbabwe and South Africa. A terrain ruggedness index was derived from a 90 m digital elevation model and used to map terrain ruggedness at each site. We compared characteristics of actual and potential (random den sites to determine how wild dogs select den sites. The distributions of wild dog dens were strongly associated with rugged terrain and wild dogs actively selected terrain that was more rugged than that available on average. The likelihood of encountering lions is reduced in these habitats, minimizing the risk to both adults and pups. Our findings have important implications for the conservation management of the species, especially when assessing habitat suitability for potential reintroductions. The simple technique used to assess terrain ruggedness may be useful to investigate habitat suitability, and even predict highly suitable denning areas, across large landscapes.

  16. Cone-beam computed tomography for assessment of dens invaginatus in the Polish population.

    Science.gov (United States)

    Różyło, T Katarzyna; Różyło-Kalinowska, Ingrid; Piskórz, Magdalena

    2018-01-01

    There are many developmental variations in the permanent dentition. Dens invaginatus can be recognized on many dental X-rays of affected patients, but not every image allows for assessment of the type of malformation. The aim of the present study was to assess the presence of dens invaginatus with radiological features using cone-beam computed tomography (CBCT). CBCT images of 33 patients were evaluated. Age, sex, side, lateralization, occurrence in a particular group of teeth, type of invagination, differentiation, and the consequences of these factors were analyzed. Forty-one teeth with dens invaginatus met the inclusion criteria for this evaluation. Females were affected more frequently than males (57.6 vs. 42.4%, respectively). The patients' age ranged from 7 to 40 years, and the occurrence of dens invaginatus peaked from age 9 to 13 years. In total, 92.7% of affected teeth were present in the maxilla, more often unilaterally (75.8%) than bilaterally (24.2%). The most frequent tooth with dens invaginatus was the maxillary lateral incisor (53.7% of affected teeth). Almost two-thirds (63.4%) of affected teeth were found on the left side and 36.6% were found on the right. The tooth anatomy was distorted within the crown and root. Dens invaginatus sometimes affected other surrounding teeth and reduced their esthetics. The obtained data indicate that CBCT examination is an essential tool in assessing dens invaginatus and can guide dental practitioners in treating patients who exhibit characteristic features of this disorder. CBCT allows the clinician to distinguish the type of anomaly.

  17. Naturalismus als Herausforderung für den Religionsunterricht

    Directory of Open Access Journals (Sweden)

    Christian Feichtinger

    2015-11-01

    Full Text Available ENGLISH: This paper reflects on statements and attitudes of pupils in religion classes that represent a perspective of naturalism, and on teachers’ possibilities of reacting to such statements. We define the term ‘naturalism’ and explain, in which way naturalistic attitudes may occur and which questions they are related to. Based on a theological and philosophical criticism of naturalism we want to encourage teachers of religion to openly question such worldviews. To do so, we refer to the concept of ‘philosophy/theology for children/adolescents’. We argue to use the so-called ‘Socratic Method’ in its original sense, namely the challenging of alleged certainties (elenchus. The Socratic Method can and should be used not only to philosophize freely, but also to question pupils’ (naturalistic worldviews and attitudes, not with the purpose to then impose a ‘correct’ worldview onto them, but to help deconstructing alleged certainties and opening new horizons of thought. DEUTSCH: Der Beitrag befasst sich mit naturalistischen Aussagen und Einstellungen von SchülerInnen im Religionsunterricht und einer didaktischen Reflexion über den angemessenen Umgang mit ihnen durch die Lehrperson. Es wird dargelegt, was unter Naturalismus zu verstehen ist, auf welche Weise er im Unterricht auftauchen kann und welche Fragen davon betroffen sind. Gestützt auf eine theologisch-philosophische Kritik am Naturalismus sehen wir es als Aufgabe des Religionsunterrichts an, naturalistische Einstellungen kritisch zu hinterfragen. Hierzu beziehen wir uns auf das Konzept der ‚Kinder-/Jugendtheologie‘ bzw. im Speziellen auf eine ‚Theologie für Kinder/Jugendliche‘. Dabei plädieren wir dafür, die sog. ‚sokratische Methode‘ in ihrem ursprünglichen Sinn, nämlich der Infragestellung von vermeintlichen Gewissheiten (elenchus, zu verwenden. Die sokratische Methode kann und soll auch dafür verwendet werden, (naturalistische Weltsichten der Sch

  18. Hvorfor skuffer økonomien i Europa, når den overrasker positivt i UK og USA?

    DEFF Research Database (Denmark)

    Rangvid, Jesper

    2014-01-01

    Nu troede vi lige, at der var lysere tider forude for den danske og den europæiske økonomi. Gennem foråret lød der optimistiske toner fra økonomer, regeringer, centralbankchefer og - for dens sags skyld - forskere. Desværre er de seneste tal nedslående, og bekymringen for, at opsvinget i Europa...

  19. Multiple dens invaginatus, mulberry molar and conical teeth. Case report and genetic considerations.

    Science.gov (United States)

    Sedano, Heddie O; Ocampo-Acosta, Fabian; Naranjo-Corona, Rosa I; Torres-Arellano, Maria E

    2009-02-01

    Dens in dente, also known as dens invaginatus and dilated compound odontoma, is a malformation that can occur on primary, permanent, or supernumerary teeth that is characterized by a deep invagination of the surface of a crown or root covered with enamel. This abnormality in tooth morphology generally affect the maxillary lateral incisors but several cases of multiple dens invaginatus have been reported in the literature. A 15 year-old female patient is reported here presenting five dens invaginatus: four in the permanent mandibular incisors and one in the permanent, maxillary left central incisor, additionally the following dental findings were observed: a permanent mandibular left mulberry molar, molarization of some premolars, several microdontic conoid teeth, retention of five primary teeth, absence of several permanent teeth germs, a macrodontic molar with abnormal roots and several periapical radiolucencies associated to the dens invaginatus. There was no family history of similar dental findings to those observed in the patient. There are several genes that participate in the development of teeth, of those, the following five genes could be implicated as responsible or co-participators for some of the dental anomalies present in this patient: MSX1 (Muscle segment homeobox 1), DLX1 & DLX2 (Distal-less homeobox 1 & 2 genes), PAX9 (Paired box gene) and PITX2 (Pituitary homeobox transciption factor 2).

  20. Dens invaginatus and treatment options based on a classification system: report of a type II invagination.

    Science.gov (United States)

    Kristoffersen, Ø; Nag, O H; Fristad, I

    2008-08-01

    To give an overview of treatment options for dens invaginatus based on a classification system. Dens invaginatus is a dental malformation which may give endodontic complications. Treatment may vary in relation to anatomy, and a classification system for dens invaginatus forms the basis for discussion. A clinical case, classified as a type II invagination (Oehlers' classification), is also presented. Clinical and radiographic examination revealed an invagination penetrating into the apical third of the root canal in tooth number 12. The tooth was immature with an open apex, apical pathosis and a labial fistula. To control the infection, ultrasonic removal of the invagination was necessary, as the invagination prevented complete cleaning and shaping of the root canal. After chemo-mechanical preparation and dressing with calcium hydroxide, an apical plug of MTA was placed, followed by restoration of the tooth with resin-bonded composite. Healing of the lesion with hard tissue formation was confirmed at follow-up. KEY LEARNING POINTS * Knowledge about classification and anatomical variations of teeth with dens invaginatus is important in endodontic decision making. * A classification system may be helpful when treatment options are considered. * Classification of dens invaginatus requires a thorough preoperative radiographic examination.

  1. Elektronisk journalplatform i den fysioterapeutiske praksis til kvalitetssikring og dokumentation af praksis

    DEFF Research Database (Denmark)

    Larsen, Birgit Tine; Bie Larsen, Jesper; Harboe, Michael

    deltog firmaet DIGIfys i undervisningen på modul 3, og 11, hvor de studerende blev inddraget i projektet gennem anvendelse af den elektroniske platform i tilrettelæggelsen af træningsprogrammer og gennemførsel af tests til specifikke undersøgelsesfelter. Et planlagt bachelorprojekt, hvor de studerende...... af evidensen af den fysioterapeutiske behandling, medfødte et ønske om inddragelse af egnede elektroniske undersøgelsesredskaber og spørgeskemaer. Med udgangspunkt i dette initierede fysioterapiuddannelsen, UCN, indeværende projekt i samarbejde med software firmaet DIGIfys. Formål: At videreudvikle...... den elektroniske journalplatform DIGIfys, ved at skabe mulighed for at indsamle undersøgelsesfund i kombination med behandlingsinterventioner igennem udvælgelse og implementering af de – ifølge litteraturen - bedst egnede validerede spørgeskemaer. Metode og Resultater: Undervisere på...

  2. Construcción de un densímetro operado magnéticamente

    Directory of Open Access Journals (Sweden)

    Jorge A. Pinzón

    2010-02-01

    Full Text Available Se diseñó y construyó un densímetro operado magnéticamente, el cual permite determinar la densidad de una solución con precisión hasta la quinta cifra decimal. En el diseno se tuvo en cuenta la posibilidad de poder armar y desarmar fácilmente las diferentes piezas que constituyen el densímetro, con el objeto de cambiar la bobina principal y asi aumentar el rango de las densidades que se pueden medir. La calibración del densímetro se realizó mediante anillos de platino y soluciones de cloruro de sodio. Igualmente, se diseñó, construyó y montó un sistema para el control de temperatura, el cual no presentó desviaciones mayores de 10,006°C a 25°C.

  3. Nonsurgical endodontic treatment of a maxillary lateral incisor with dens invaginatus type II: A case report.

    Science.gov (United States)

    Shadmehr, Elham; Kiaani, Sima; Mahdavian, Parinaz

    2015-01-01

    Dens invaginatus is a rare developmental anomaly of teeth with complex root canal system morphology. The present case describes a peg shape maxillary lateral incisor with dens invaginatus (Oehlers type II), necrotic pulp, and an associated large periradicular lesion. Nonsurgical endodontic treatment was performed with the aim of removing the blind sac with diamond bur under the use of operating surgical microscope. The root canal system was obturated with thermoplastic technique. Final restoration was done using composite. The 20-months clinical and radiological follow up revealed an asymptomatic tooth with healing of the periapical pathology; however, for complete healed periradicular lesion more follow up is needed. This case illustrated that a dens invaginatus malformed teeth with a large periradicular lesion can be managed successfully with nonsurgical root canal therapy (NSRCT).

  4. Dens invaginatus type II associated with an impacted mesiodens: a 3-year follow-up.

    Science.gov (United States)

    Nalawade, Triveni M; Pateel, Deepak; Mallikarjuna, Rachappa; Gunjal, Shilpa

    2013-07-26

    Dens invaginatus is a developmental anomaly resulting in a deepening or invagination of the enamel organ into the dental papilla prior to calcification of the dental tissues. The prevalence has been reported to vary from 0.04% to 10%. Dens invaginatus commonly affects lateral incisors and very rarely affects the mesiodens. This article presents a rare case of type II dens invaginatus affecting an impacted mesiodens in a 13-year-old boy and describes its gross and histological features. The associated tooth was dilated and showed invaginated enamel and dentin extending beyond the cement enamel junction. In this case, the clinical diagnosis was confirmed by histological evaluation of the internal morphology using a hard tissue microtome to section the tooth.

  5. Endodontic treatment and hypotheses on an unusual case of dens invaginatus.

    Science.gov (United States)

    Demartis, Paola; Dessì, Cristina; Cotti, Marina; Cotti, Elisabetta

    2009-03-01

    This work describes a case of "dens invaginatus" and analyzes the possible aspects of this malformation. An unusual type of dens invaginatus was detected in a young patient corresponding to the maxillary lateral incisor and showing extensive periradicular radiolucency and a vestibular fistula. The radiographic and tomographic examination revealed two apices: one wide open in the distal part of the root and the other normally formed in the mesial. Nonsurgical endodontic treatment was performed by using the "one-step apexification technique," filling both apexes with mineral trioxide aggregate followed by composite resin. The follow-up examination 6 months later showed the healing of the radiolucent area and the healing of the sinus tract. Hypotheses on which was the type of dens invaginatus we had to deal with are formulated.

  6. Nonsurgical endodontic treatment of a maxillary lateral incisor with dens invaginatus type II: A case report

    Directory of Open Access Journals (Sweden)

    Elham Shadmehr

    2015-01-01

    Full Text Available Dens invaginatus is a rare developmental anomaly of teeth with complex root canal system morphology. The present case describes a peg shape maxillary lateral incisor with dens invaginatus (Oehlers type II, necrotic pulp, and an associated large periradicular lesion. Nonsurgical endodontic treatment was performed with the aim of removing the blind sac with diamond bur under the use of operating surgical microscope. The root canal system was obturated with thermoplastic technique. Final restoration was done using composite. The 20-months clinical and radiological follow up revealed an asymptomatic tooth with healing of the periapical pathology; however, for complete healed periradicular lesion more follow up is needed. This case illustrated that a dens invaginatus malformed teeth with a large periradicular lesion can be managed successfully with nonsurgical root canal therapy (NSRCT.

  7. Tekniken bakom Bluetooth Low Energy och dess användningsområden

    OpenAIRE

    Laine, Rasmus

    2013-01-01

    Arbetet behandlar Bluetooth Low Energy, som är en ny egenskap i Bluetooth 4.0. Arbetets syfte att kartlägga hur den nya lågenergitekniken fungerar och få en bild på dess användningsområden. Bluetooth har varit i över 10 år påmarknaden har fått en stark marknad inom telefonbranschen. Den har visat sig passa bra för överföring av filer samt strömning av video och ljud. Under åren har det dock dykt upp en efterfrågan på små apparater som skulle ha sensorer och låg energiförbrukning. Bluetoo...

  8. Multifaktormodeller på den svenska marknaden - En studie av OMX Stockholm mellan 1996 och 2014

    OpenAIRE

    Hammarfrid, Peter; Henningsson, Tom

    2015-01-01

    Bakgrund:CAPM räcker i flera tillfällen inte till för att estimera framtida avkastning. Vissa av prisavvikelsernafrån CAPM är väldokumenterade och har bestått över tid, vilket har lett till uppkomsten avkorrigerande faktorer. En modell som använder sig av två sådana korrigerande faktorer är Fama ochFrenchs tre-faktormodell. Den har testats flertalet gånger på den svenska marknaden där den visat gehögre förklaringsgrader än CAPM. År 2012 samt år 2014 presenterades två nya multifaktormodeller,s...

  9. Mapping polar bear maternal denning habitat in the National Petroleum Reserve -- Alaska with an IfSAR digital terrain model

    Science.gov (United States)

    Durner, George M.; Simac, Kristin S.; Amstrup, Steven C.

    2013-01-01

    The National Petroleum Reserve–Alaska (NPR-A) in northeastern Alaska provides winter maternal denning habitat for polar bears (Ursus maritimus) and also has high potential for recoverable hydrocarbons. Denning polar bears exposed to human activities may abandon their dens before their young are able to survive the severity of Arctic winter weather. To ensure that wintertime petroleum activities do not threaten polar bears, managers need to know the distribution of landscape features in which maternal dens are likely to occur. Here, we present a map of potential denning habitat within the NPR-A. We used a fine-grain digital elevation model derived from Interferometric Synthetic Aperture Radar (IfSAR) to generate a map of putative denning habitat. We then tested the map’s ability to identify polar bear denning habitat on the landscape. Our final map correctly identified 82% of denning habitat estimated to be within the NPR-A. Mapped denning habitat comprised 19.7 km2 (0.1% of the study area) and was widely dispersed. Though mapping denning habitat with IfSAR data was as effective as mapping with the photogrammetric methods used for other regions of the Alaskan Arctic coastal plain, the use of GIS to analyze IfSAR data allowed greater objectivity and flexibility with less manual labor. Analytical advantages and performance equivalent to that of manual cartographic methods suggest that the use of IfSAR data to identify polar bear maternal denning habitat is a better management tool in the NPR-A and wherever such data may be available.

  10. den er altid nærværende

    DEFF Research Database (Denmark)

    Holmboe, Rasmus

    2013-01-01

    Interview med den danske lydkunstner Lars Lundehave Hansen i anledningen af hans nyeste udgivelse, Asteroid Collisions. Interviewet handler om hvad støjen kan som kunstnerisk materiale, om hvordan det er at spille live og om forskelle og ligheder mellem musik og lydinstallationer.......Interview med den danske lydkunstner Lars Lundehave Hansen i anledningen af hans nyeste udgivelse, Asteroid Collisions. Interviewet handler om hvad støjen kan som kunstnerisk materiale, om hvordan det er at spille live og om forskelle og ligheder mellem musik og lydinstallationer....

  11. Fra kabinettskrigen til den totale krigen: Clausewitz-tolkninger fra Moltke til Aron

    OpenAIRE

    Hobson, Rolf

    1994-01-01

    Teoriene til Carl von Clausewitz, den preussiske krigsfilosofen har vært gjenstand for mange forskjellige tolkninger over de siste 150 årene. De omfattes fortsatt med stor interesse, og det må vel kunne sies at hans innflytelse er større i dag enn noensinne. Denne studien er en oversikt over noen av de viktigste tolkningene av Clausewitz’ hovedverk, Om krigen. Den forsøker å analysere årsakene til at de kunne oppstå, og de historiske virkningene de har fått, Dette skjer innenfor en bred forto...

  12. Jagten på den perfekte efterafgrøde i majs

    DEFF Research Database (Denmark)

    Thomsen, Henning Carlo; Hansen, Elly Møller

    2012-01-01

    Arealet med majs er hastigt stigende, og den hurtigvoksende plante har brug for en efterafgrøde, der kan reducere udvaskningen af kvælstof efter høst. Derfor arbejder forskere med at finde en efterafgrøde, der kan leve i harmoni med majsen.......Arealet med majs er hastigt stigende, og den hurtigvoksende plante har brug for en efterafgrøde, der kan reducere udvaskningen af kvælstof efter høst. Derfor arbejder forskere med at finde en efterafgrøde, der kan leve i harmoni med majsen....

  13. Idræt og sport i den danske oplevelsesøkonomi

    DEFF Research Database (Denmark)

    Storm, Rasmus K.; Brandt, Henrik

    Bogen sætter fokus på idræt og sport som vækstgenerator i den nye oplevelsesøkonomi. Særligt inden for fodbold og håndbold har væksten været stor, men også det frivillige foreningsliv, eventområdet og fitnesssektoren m.fl. er centrale aktører. Idræt og sport i den danske oplevelsesøkonomi...

  14. Endodontic Treatment of Type II Dens Invaginatus in a Maxillary Lateral Incisor: A Case Report

    Science.gov (United States)

    Helvacioglu-Yigit, Dilek; Aydemir, Seda

    2012-01-01

    Dens invaginatus is a developmental anomaly that results in an enamel-lined cavity intruding into the crown or root before the mineralization phase. It typically affects permanent maxillary lateral incisors, central incisors, and premolars. This paper describes the root canal treatment of Oehlers' type II dens invaginatus in maxillary left lateral incisors. A 16-year-old boy presented to the Faculty of Dentistry, University of Kocaeli, to receive his dental treatments. During the caries removal, the pulp was exposed then anendodontic treatment was initiated. Two canals, one of which represented the invagination, were instrumented, irrigated, and then obturated with a lateral condensation technique. PMID:23213576

  15. Association of Mesiodentes and Dens Invaginatus in a Child: A Rare Entity

    Science.gov (United States)

    Sulabha, A. N.; Sameer, C.

    2012-01-01

    Supernumerary teeth are defined as any teeth in excess of normal number. Mesiodens is a supernumerary tooth, in the central region of premaxilla between two central incisors. Dens invaginatus is a developmental anomaly resulting from invagination in the surface of tooth crown before calcification has occurred. Radiographically, it is observed as infolding of a radioopaque ribbon like structure, with equal density as enamel, extending from cingulum into a root canal and sometimes reaching the root apex. This paper aims to present a rare association of dens invaginatus with two mesiodentes in a child causing the eruption disturbance and unaesthetic appearance in anterior maxilla. PMID:23198162

  16. Co-occurrence of gemination and dens invaginatus: a case report

    Directory of Open Access Journals (Sweden)

    Sonika Achalli

    2016-03-01

    Full Text Available Gemination is a developmental anomaly where a single tooth bud attempts to split into two. It is also sometimes called as double tooth or twinning. Dens invaginatus is another developmental anomaly caused due to invagination of a portion of crown. These anomalies occur as separate entities. Co-occurrence of these two anomalies have been only reported four times in the literature. Here we present an extremely rare case of simultaneous occurrence of gemination and dens invaginatus in the same tooth. [Cukurova Med J 2016; 41(1.000: 175-177

  17. Endodontic Treatment of Type II Dens Invaginatus in a Maxillary Lateral Incisor: A Case Report

    Directory of Open Access Journals (Sweden)

    Dilek Helvacioglu-Yigit

    2012-01-01

    Full Text Available Dens invaginatus is a developmental anomaly that results in an enamel-lined cavity intruding into the crown or root before the mineralization phase. It typically affects permanent maxillary lateral incisors, central incisors, and premolars. This paper describes the root canal treatment of Oehlers’ type II dens invaginatus in maxillary left lateral incisors. A 16-year-old boy presented to the Faculty of Dentistry, University of Kocaeli, to receive his dental treatments. During the caries removal, the pulp was exposed then anendodontic treatment was initiated. Two canals, one of which represented the invagination, were instrumented, irrigated, and then obturated with a lateral condensation technique.

  18. Conservative treatment and follow-up of type III dens invaginatus using cone beam computed tomography.

    Science.gov (United States)

    Ceyhanli, Kadir T; Celik, Davut; Altintas, Subutay H; Taşdemir, Tamer; S Sezgin, Omer

    2014-12-01

    Dens invaginatus is a well-recognized phenomenon, and its endodontic treatment poses a challenge, especially for peri-invagination lesions with vital pulp. Here we describe the outcome of conservative treatment and follow-up in a case of type III dens invaginatus. Cone-beam computed tomography was used for diagnosis and follow-up. Pulp vitality was preserved with endodontic treatment of only an invaginated canal. At the 24-month follow-up examination, the tooth was asymptomatic and repair of the lesion was evident radiographically. This case was managed successfully with endodontic treatment of the invagination. (J Oral Sci 56, 307-310, 2014).

  19. Association of Mesiodentes and Dens Invaginatus in a Child: A Rare Entity

    Directory of Open Access Journals (Sweden)

    A. N. Sulabha

    2012-01-01

    Full Text Available Supernumerary teeth are defined as any teeth in excess of normal number. Mesiodens is a supernumerary tooth, in the central region of premaxilla between two central incisors. Dens invaginatus is a developmental anomaly resulting from invagination in the surface of tooth crown before calcification has occurred. Radiographically, it is observed as infolding of a radioopaque ribbon like structure, with equal density as enamel, extending from cingulum into a root canal and sometimes reaching the root apex. This paper aims to present a rare association of dens invaginatus with two mesiodentes in a child causing the eruption disturbance and unaesthetic appearance in anterior maxilla.

  20. den pakotettu käyttö : vaikuttava aivohalvauspotilaan kuntoutusmenetelmä

    OpenAIRE

    Hänninen, Kati; Näsi, Minna

    2007-01-01

    Opinnäytetyön tarkoituksena oli käsitellä käden pakotettua käyttöä aivohalvauspotilaan kuntoutusmenetelmänä ja tuoda esille sen vaikuttavuutta halvaantuneen yläraajan toimintakyvyn edistämisen kannalta. Tavoitteena oli kirjallisuuskatsauksen ja tapausesimerkin avulla luoda kattava kokonaisuus käden pakotetun käytön kuntoutuksesta. Lähdeaineistona käytettiin uusimpia aiheeseen liittyviä tutkimuksia, monipuolista kirjallisuutta sekä tapausesimerkin henkilökohtaisia tiedonantoja. Opinnäytetyössä...

  1. Identification of a dengue virus type 2 (DEN-2) serotype-specific B-cell epitope and detection of DEN-2-immunized animal serum samples using an epitope-based peptide antigen.

    Science.gov (United States)

    Wu, Han-Chung; Jung, Mei-Ying; Chiu, Chien-Yu; Chao, Ting-Ting; Lai, Szu-Chia; Jan, Jia-Tsrong; Shaio, Men-Fang

    2003-10-01

    In this study, a serotype-specific monoclonal antibody (mAb), D(2) 16-1 (Ab4), against dengue virus type 2 (DEN-2) was generated. The specificity of Ab4, which recognized DEN-2 non-structural protein 1, was determined by ELISA, immunofluorescence and immunoblotting analyses. The serotype-specific B-cell epitope of Ab4 was identified further from a random phage-displayed peptide library; selected phage clones reacted specifically with Ab4 and did not react with other mAbs. Immunopositive phage clones displayed a consensus motif, His-Arg/Lys-Leu/Ile, and a synthetic peptide corresponding to the phage-displayed peptide bound specifically to Ab4. The His and Arg residues in this epitope were found to be crucial for peptide binding to Ab4 and binding activity decreased dramatically when these residues were changed to Leu. The epitope-based synthetic peptide not only identified serum samples from DEN-2-immunized mice and rabbits by ELISA but also differentiated clearly between serum samples from DEN-2- and Japanese encephalitis virus-immunized mice. This mAb and its epitope-based peptide antigen will be useful for serologic diagnosis of DEN-2 infection. Furthermore, DEN-2 epitope identification makes it feasible to dissect antibody responses to DEN and to address the role of antibodies in the pathogenesis of primary and secondary DEN-2 infections.

  2. Raccoon Use of Den Trees and Plant Associations in Western Mesophytic Forests: Tree Attributes and Availability or Landscape Heterogeneity?

    Science.gov (United States)

    Winston P. Smith; Keith M. Endres

    2012-01-01

    We monitored 15 radio-collared raccoons (Procyon lotor) on Davies Island in March 1987 - May 1988 to determine the extent to which individual tree attributes or spatial configuration of plant associations (habitat types) across the land-scape influenced den use. Of 1091 verified den sites, 428 were in tree cavities. Raccoon occurrence among 4 cover...

  3. EU er på vej mod at udvikle og implementere europæiske regnskabsstandarder indenfor den offentlige sektor

    DEFF Research Database (Denmark)

    Pontoppidan, Caroline Aggestam

    2015-01-01

    I maj 2013 var Europa-Kommisionen og Eurostat vært for en konference med formålet at forhandle om den fremtidige udvikling af harmoniserede offentlige regnskabsstandarder ('European Public Sector Accounting Standards' EPSAS) som skal anvendes af alle medlemslande i den Europæiske Union...

  4. Zorggebruik na schietincident in Alphen aan den Rijn: gezondheid van getroffenen en niet-getroffen omwonenden 1 jaar na dato.

    NARCIS (Netherlands)

    Dijk, C.E. van; Sman-de Beer, F. van der; Tielen, J.T.; Velden, P.G. van der; IJzermans, C.J.

    2014-01-01

    Healthcare utilisation of those affected by the shooting incident in Alphen aan den Rijn, the Netherlands; health of affected and non-affected neighbouring residents 1 year afterwards. Objective: To examine effects of the mass shooting in the city of Alphen aan den Rijn, the Netherlands, on the 9th

  5. Growth characteristics of ChimeriVax-DEN2 vaccine virus in Aedes aegypti and Aedes albopictus mosquitoes.

    Science.gov (United States)

    Johnson, Barbara W; Chambers, Trudy V; Crabtree, Mary B; Bhatt, Tejal R; Guirakhoo, Farshad; Monath, Thomas P; Miller, Barry R

    2002-09-01

    The chimeric yellow fever (YF) 17D-dengue type 2 (ChimeriVax-DEN2) vaccine virus developed by Acambis, Inc. (Cambridge, MA) contains the prM and E genes of wild-type (wt) dengue 2 (DEN-2) (strain PUO-218) virus in the YF vaccine virus (strain 17D) backbone. The potential of ChimeriVax-DEN2 virus to infect and be transmitted by Aedes aegypti, the principal DEN and YF virus mosquito vector, and Aedes albopictus, a species that occurs in areas of active transmission of YF and DEN viruses, was evaluated. Mosquitoes were intrathoracically (IT) inoculated with virus or were fed a virus-laden blood meal, and the replication kinetics of ChimeriVax-DEN2 were compared with the wt DEN-2 and YF 17D vaccine viruses. Replication of YF 17D virus is attenuated in cultured Ae. albopictus C6/36 mosquito cells and in Ae. aegypti and Ae. albopictus mosquitoes. Growth of ChimeriVax-DEN2 virus similarly was restricted in C6/36 cells and in mosquitoes. ChimeriVax-DEN2 replicated in 56% of IT inoculated Ae. aegypti, and virus disseminated to head tissue in 36%, with a mean viral titer of 1.8 log10 PFU/mosquito. Of mosquitoes, 16% of Ae. aegypti and 24% of Ae. albopictus were infected 14 days after a blood meal containing ChimeriVax-DEN2, but virus did not disseminate to head tissue. In contrast, DEN-2 replicated in all IT inoculated and orally infected Ae. aegypti (mean titer 5.5 log10 PFU/mosquito), and virus disseminated to head tissue in 95%. Of Ae. albopictus, 84% were infected after a blood meal containing DEN-2 virus; dissemination occurred in 36%. Replication of ChimeriVax-DEN2 virus in mosquitoes corresponded to that of YF 17D vaccine virus, which is restricted in its ability to infect and replicate in mosquitoes. Therefore, transmission of ChimeriVax-DEN2 virus by vector mosquitoes is unlikely.

  6. Der zivilisationswortschatz bei den Serben und Kroaten im 19. jahrhundert: Am beispiel einiger begriffe aus wirtschaft und bankwesen

    Directory of Open Access Journals (Sweden)

    Neveklovski Gerhard

    2008-01-01

    Full Text Available (nemački Die angeführten Belege aus den Sachgebieten Wirtschaft, Handel Bankwesen stellen eine Auswahl aus dem umfangreichen Projekt 'Gesellschaft und Wirtschaft' der Balkankommission der Österreichischen Akademie der Wissenschaften dar. Sie zeigen deutlich, wie bei den Serben und Kroaten bei der Schaffung eines den Zeiterfordernissen angepassten Wortschatzes auf verschiedene Traditionen zurückgegriffen wird, und dass diese Traditionen ihre Kontinuität bis heute besitzen. Bei den Serben bleiben viel eher internationale Entlehnungen erhalten als bei den Kroaten, die eher einheimisches Wortmaterial vorziehen. Im einzelnen werden die Begriffe Aktie Bankrott, Darlehen, Kapital, Kasse, Pacht, Ware, Zinsen mit ihren Ableitungen behandelt. Die Beispiele sind Beiträge zur Wortgeschichte, die Angaben im großen Akademiewörterbuch (ARj ergänzen oder korrigieren und einen Überblick über die Techniken der Entstehung neuer Wörter vermitteln sollen.

  7. Microradiagraphy of biological samples with Timepix

    Czech Academy of Sciences Publication Activity Database

    Dammer, J.; Weyda, František; Beneš, J.; Sopko, V.; Jakůbek, J.; Vondráček, V.

    2011-01-01

    Roč. 6, C11005 (2011), s. 1-6 ISSN 1748-0221. [International workshop on radiation imaging detectors /13./. Zurich, 03.07.2011-07.07.2011] R&D Projects: GA MŠk 2B06005 Grant - others:GA MŠk(CZ) LC06041; GA AV ČR(CZ) IAA600550614; GA MŠk(CZ) 2B06007; Research Program(CZ) 6840770029; Research Program(CZ) 6840770040; GA MŠk-spolupráce s CERN(CZ) 1P04LA211 Program:LC; IA; 2B; 1P Institutional research plan: CEZ:AV0Z50070508 Keywords : X- ray detectors * X- ray radiography and digital radiography (DR) * pixelated detectors and associated VLSI electronics Subject RIV: EA - Cell Biology Impact factor: 1.869, year: 2011 http://iopscience.iop.org/1748-0221/6/11/C11005/pdf/1748-0221_6_11_C11005.pdf

  8. Når mobilen tager magten - nærvær i den digitale tidsalter

    DEFF Research Database (Denmark)

    Fenger, Morten Munthe

    at se ind i en skærm? "Når mobilen tager magten" beskriver, hvordan den digitale teknologi og sociale medier såsom Facebook, Instagram og Snapchat går direkte ind og udnytter menneskets instikter, og tilfredsstiller vores behov hurtigere end vores forstand og vilje kan følge med og sige fra. "Når...

  9. [Heinz von zur Mühlen. Auf den Spuren einiger revlaer Firmen und Familien] / Paul Kaegbein

    Index Scriptorium Estoniae

    Kaegbein, Paul

    2007-01-01

    Arvustus: Heinz von zur Mühlen. Auf den Spuren einiger revlaer Firmen und Familien. In : Buch und Bildung im Baltikum. Münster : LIT, 2005, lk. 527-541. Pika tänava majade omanikest alates 17. sajandist - perekonnad Koch, Meyer, Kluge, Ströhm, Wassermann, Glehn, Eggers, Koppelson, Weiss. Nii loob autor pildi Tallinna "firmade ajaloost"

  10. Johannes van den Berg, Constrained by Jesus' Love. An Inquiry into ...

    African Journals Online (AJOL)

    Johannes van den Berg, Constrained by Jesus' Love. An Inquiry into the Motives of the missionary Awakening in Qreat Britain in the Period between 1698 and 1815, J. H. Kok, N.V., Kampen, 1956. P.S Dreyer. Abstract. No Abstract. Full Text: EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT · DOWNLOAD FULL TEXT ...

  11. Dansk international landevejstransport - en branche og dens forening i konstant udvikling

    DEFF Research Database (Denmark)

    Klatt, Martin

    Festskrift til interesseorganisationen International Transport Danmarks 60-års jubilæum. Bogen fortæller, hvordan foreningen FDE/ITD og dens medlemmer siden 1980'erne har tilpasset sig de ændrede vilkår på transportmarkederne. Bogen redegør for liberaliseringen af EU's transportmarked...

  12. Eksport via indkøbsbaserede e-markedspladser: Den amerikanske restaurationsbranche

    DEFF Research Database (Denmark)

    Fenger, Henrik Hauch; Rask, Morten

    2005-01-01

    I den amerikanske restaurationsbranche er en række e-markedspladser blevet dannet primært for at tjene indkøbsorganisationernes medlemmer med rationalisering af indkøbsprocesserne som formål. Som konsekvens køber e-markedspladsernes medlemmer i stigende omfang udenom traditionelle mellemhandlere ...

  13. Neue Calandriden (Coleoptera Curculionidae) von den grossen Sunda-Inseln und Nordindien

    NARCIS (Netherlands)

    Günther, K.

    1935-01-01

    Otidognathus inexspectatus nov. spec. (Fig. 1) ♀. Körperoberfläche matt, wächsern, Farbe dunkel rotbraun mit schwarzen Zeichnungen. Kopf und Rüssel glänzend schwarz, Rüssel ganz schwach gebogen, fast so lang wie das Halsschild, mit feinem Mittelkiel und Puncturen im basalen Drittel; zwischen den

  14. The Dens: Normal Development, Developmental Variants and Anomalies, and Traumatic Injuries

    Directory of Open Access Journals (Sweden)

    William T O′Brien

    2015-01-01

    Full Text Available Accurate interpretation of cervical spine imagining can be challenging, especially in children and the elderly. The biomechanics of the developing pediatric spine and age-related degenerative changes predispose these patient populations to injuries centered at the craniocervical junction. In addition, congenital anomalies are common in this region, especially those associated with the axis/dens, due to its complexity in terms of development compared to other vertebral levels. The most common congenital variations of the dens include the os odontoideum and a persistent ossiculum terminale. At times, it is necessary to distinguish normal development, developmental variants, and developmental anomalies from traumatic injuries in the setting of acute traumatic injury. Key imaging features are useful to differentiate between traumatic fractures and normal or variant anatomy acutely; however, the radiologist must first have a basic understanding of the spectrum of normal developmental anatomy and its anatomic variations in order to make an accurate assessment. This review article attempts to provide the basic framework required for accurate interpretation of cervical spine imaging with a focus on the dens, specifically covering the normal development and ossification of the dens, common congenital variants and their various imaging appearances, fracture classifications, imaging appearances, and treatment options.

  15. Kvantitative metoder og den globale fattigdomsmålsætning

    DEFF Research Database (Denmark)

    Casse, Thorkil

    2007-01-01

    Artiklen problematiserer den model (kun økonomisk vækst), som internationale organisationer anvender, når det skal forklares, hvordan fattigdomme halveres. Måske ved relativ få, trods ofte anvendelse, hvad begrebet fattigdomsorienteret vækst indbefatter. Artiklen fokuserer primært på PRSP (Povert...... Reduction Strategy Papers) i Burkina Faso og Madagascar....

  16. Den vitalistiske strømning i dansk litteratur omkring år 1900

    DEFF Research Database (Denmark)

    Dam, Anders Ehlers

    nylæsninger deres værker i spil med århundredskiftets billedkunst og musik, repræsenteret af J.F. Willumsen og Carl Nielsen. Den livsdyrkende kunst i Danmark sættes desuden ind i sin internationale idéhistoriske sammenhæng. Her er de tyske filosoffer Arthur Schopenhauer og Friedrich Nietzsche i fokus....

  17. Parnassiana nova : LI. Bemerkungen über Parnassius in den Karpathen und der Tschechoslowakei

    NARCIS (Netherlands)

    Eisner, C.; Zelný, J.

    1977-01-01

    Parnassius mnemosyne mesoleucus Fruhstorfer, natio gynaecotropaintensa (natio nova) Zelný (1956) hat in seinen Arbeiten „Parnassius mnemosyne mesoleucus Fruhstorfer aus der Kleinen Fatra" (Zeitschrift der Wiener Entomologischen Gesellschaft, 41: 257-263) sich ausführlich über die in den

  18. Hylopetes magistri, new name for Hylopetes debruijni Reumer & Van den Hoek Ostende, 2003, preoccupied

    NARCIS (Netherlands)

    Hoek Ostende, L.W. van den; Reumer, J.W.F.

    2011-01-01

    In 2003, we published a new species of Hylopetes, H. debruijni, from the early Pleistocene locality of Tegelen, The Netherlands (Reumer and Van den Hoek Ostende, 2003). This publication appeared in a special volume in honor of Hans de Bruijn, which contained the proceedings of congress in

  19. Over den invloed van insuline op de permeabiliteit der weefsels voor glucose

    NARCIS (Netherlands)

    Hamburger, Rudolf Jacobus

    1930-01-01

    In het voorafgaande overzicht van de literatuur, hebben wij gezien, dat vooral vele proeven in vivo, erop wijzen, dat bij diabetes, zoowel van den mensch als bij door pancreasextirpatie diabetisch gemaakte proefdieren minder glucose in de weefsels voorkomt en eveneens minder glucose daarin wordt

  20. Von den Liven von Oesel / August Ludwig Schlözer

    Index Scriptorium Estoniae

    Schlözer, August Ludwig

    2008-01-01

    Avaldatud Eberhard Winkleri initsiatiivil A. L. Schlözeri teose põhjal: Gesammelte Nachrichten von den Ueberresten der Liven, in Livland und Kurland. (1770), mis moodustab osa teosest: Schlözer, August Ludwig. M. Johann Joseph Haigold's Beylagen zum Neuveränderten Russland. Zweiter Theil. Riga und Leipzig, 1770

  1. Synet på døden i Grundtvigs gendigtninger af gammeltestamentlige tekster

    DEFF Research Database (Denmark)

    Nielsen, Kirsten

    2013-01-01

    i den gammelnordiske betydning: dødsriget. Resultatet bliver, at Grundtvig, der ellers ikke er tilbageholdende med at tale om Djævelen og Helvede, kun meget sjældent gør det, når han gendigter en gammeltestamentlig tekst. Grundtvig er således loyal over for sit gammeltestamentlige forlæg, hvilket...

  2. Forskningsbibliotekerne får travlt, hvis den nationale Open Access strategi skal lykkes

    DEFF Research Database (Denmark)

    Ibanez, Karen Sofie Hytteballe; Sandfær, Anne

    2014-01-01

    Med nedsættelsen af en national styregruppe for Open Access (OA) ser der endelig ud til at ske noget på den front i Danmark. Uddannelses og Forskningsministeriet har, efter at have anbefalinger liggende i skuffen i flere år, nu endelig meldt en national strategi ud. Målet er 80% grøn OA i 2017 og...

  3. In memoriam Jacobus Cornelis (Koos) den Hartog (1942-2000), marine naturalist

    NARCIS (Netherlands)

    Land, van der J.

    2003-01-01

    Jacobus Cornelis den Hartog was born on 17 April 1942 in Broek op Langedijk. He read biology at Leiden University from 1963 to 1970. He worked at the Caribbean Marine Biological Station on Curaçao from 1971 to 1973, where he studied Caribbean sea anemones. From 1973 he worked in the National Museum

  4. Retfærdig krig i den græsk-romerske oldtid

    DEFF Research Database (Denmark)

    Krasilnikoff, Jens Andreas

    2006-01-01

    Bidraget relaterer krigens retfærdiggørelse og de konventioner, der knytter sig hertil for den græsk-romerske oldtids enkelte perioder. Hermed diskuteres også hvordan begreberne for krigens retfærdiggørelse ændrede sig over tid, og i hvilket omfang romernes begrebsdannelse afhang af de græske og ...

  5. Plasma Krebs von den Lungen glycoprotein, lung injury, and noninvasive ventilation in Duchenne muscular dystrophy.

    Science.gov (United States)

    Hamada, Satoshi; Ishikawa, Yuka; Aoyagi, Tomoyuki; Ishikawa, Yukitoshi; Minami, Ryoji; Bach, John R

    2012-10-01

    There have been few reports of ventilator-induced lung injury associated with noninvasive ventilation (NIV), but many with invasive mechanical ventilation. The purpose of this study was to detect subclinical NIV-associated lung injury by monitoring Krebs von den Lungen glycoprotein plasma levels. Forty-one Duchenne muscular dystrophy patients were divided into three categories: group 1, asymptomatic and not using ventilators; group 2, NIV use less than 24 hrs/day at full ventilatory support settings; and group 3, continuous NIV dependence. Plasma Krebs von den Lungen glycoprotein level was measured by electrochemical luminescent immunoassay using Krebs von den Lungen glycoprotein antibodies. One-way analysis of variance, followed by the Tukey-Kramer test, was used as appropriate to compare intergroup differences. Extent of ventilator dependence correlated with age (P Krebs von den Lungen glycoprotein levels were not significantly different. NIV used at volumes and pressures of full (invasive) ventilatory support may not induce the alveolar septal barrier injury commonly seen with invasive mechanical ventilation.

  6. Den Internationale Domstols dom af 26. februar 2007 i sagen Bosnia-Herzegovina v. Yugoslavia

    DEFF Research Database (Denmark)

    Kjeldgaard-Pedersen, Astrid

    2008-01-01

    Med sin dom i Case Concerning Application of the Convention on the Prevention and Punishment of the Crime of Genocide (Bosnia-Herzegovina v. Yugoslavia) har Den Internationale Domstol i Haag1 ydet et vidtrækkende bidrag til teorien om folkedrab og fortolkningen af Folkedrabskonventionen. Efter...

  7. Hvem ved hvad den agile bølge vil skylle op?

    DEFF Research Database (Denmark)

    Hansen, Magnus Rotvit Perlt

    2017-01-01

    Agil projektledelse er det helt store buzzword indenfor dansk projektledelse, som vi i den grad så demonstreret til symposiet i maj. Selv med de mange positive historier med at strukturere organisationen efter agil projektledelse kan vi dog endnu ikke tillade os at stå på SAFe ground. Der er endnu...

  8. Den Sorte Engel belaster fortsat miljøet ved Maarmorilik

    DEFF Research Database (Denmark)

    Voigt, Steen

    2008-01-01

    Næsten 20 år efter, at minedriften efter bly og zink ved Maarmorilik i Uummannaq kommune i det nordvestlige Grønland blev indstillet, belastes de omkringliggende fjorde og landområder fortsat med de to metaller. Det fremgår af den seneste rapport fra Danmarks Miljøundersøgelser (DMU) ved Aarhus U...

  9. Udbredelse af den baktielle zoonose i danske kvægbesætninger

    DEFF Research Database (Denmark)

    Bødker, Rene; Christoffersen, Anna-Bodil

    2008-01-01

    Tankmælksprøver fra 742 mælkeleverende kvægejendomme blev analyseret for antistoffer mod Coxiella burnetii i en ELISA. 57% af ejendommene havde positive prøver i den serologiske test. Prøverne var diagnostiske indsendelser til DTU Veterinærinstituttet og udgjorde derfor ikke en repræsentativ...

  10. DenHunt - A Comprehensive Database of the Intricate Network of Dengue-Human Interactions

    Science.gov (United States)

    Arjunan, Selvam; Sastri, Narayan P.; Chandra, Nagasuma

    2016-01-01

    Dengue virus (DENV) is a human pathogen and its etiology has been widely established. There are many interactions between DENV and human proteins that have been reported in literature. However, no publicly accessible resource for efficiently retrieving the information is yet available. In this study, we mined all publicly available dengue–human interactions that have been reported in the literature into a database called DenHunt. We retrieved 682 direct interactions of human proteins with dengue viral components, 382 indirect interactions and 4120 differentially expressed human genes in dengue infected cell lines and patients. We have illustrated the importance of DenHunt by mapping the dengue–human interactions on to the host interactome and observed that the virus targets multiple host functional complexes of important cellular processes such as metabolism, immune system and signaling pathways suggesting a potential role of these interactions in viral pathogenesis. We also observed that 7 percent of the dengue virus interacting human proteins are also associated with other infectious and non-infectious diseases. Finally, the understanding that comes from such analyses could be used to design better strategies to counteract the diseases caused by dengue virus. The whole dataset has been catalogued in a searchable database, called DenHunt (http://proline.biochem.iisc.ernet.in/DenHunt/). PMID:27618709

  11. Evaluering af den netbaserede pædagoguddannelse Midt-Vest/Viborg

    DEFF Research Database (Denmark)

    Keiding, Tina Bering; Mathiasen, Helle; Del Pin Hamilton, Stine

    Rapporten sammenfatter resultaterne af en evaluering af den netbaserede del af pædagoguddannelsen Midt-Vest. Evalueringen er gennemført i efteråret 2009 og afsluttet februar 2010. Evalueringen er gennemført i et team bestående af lektor Tina Bering Keiding, Forskningsprogrammet for de videregående...

  12. Surgical orthodontic treatment of an impacted canine in the presence of dens invaginatus and follicular cyst.

    Science.gov (United States)

    Spallarossa, Marialuce; Canevello, Carola; Silvestrini Biavati, Francesca; Laffi, Nicola

    2014-01-01

    Introduction. "Dens invaginatus" is a dental anomaly which originates from the invagination of the ameloblastic epithelium into the lingual surface of the dental crown during the odontogenesis. It can cause early pulpal necrosis, abscesses, retention or dislocation of contiguous elements, cysts, and internal resorptions. It normally affects the upper lateral incisors. In the following study the authors will discuss the etiology, the physiopathology, and the surgical-orthodontic management of a rare case of impacted canine associated with dens invaginatus and follicular cyst, with the aim of highlighting the importance of taking any therapeutic decision based on the data available in the literature. Case Report. The present study describes a combined surgical-orthodontic treatment of an impacted canine associated with a lateral incisor (2.2) suffering from type III dens invaginatus with radicular cyst, in a 15-year-old patient. Discussion. When treating a dens invaginatus there are different therapeutic solutions: they depend on the gravity of the anomaly and on the association with the retention of a permanent tooth. The aesthetic and functional restoration becomes extremely important when performing a surgical-orthodontic repositioning.

  13. Management of dens invaginatus type I and open apex: report of three cases.

    Science.gov (United States)

    Schmitz, Márcia S; Montagner, Francisco; Flores, Claudia B; Morari, Victor H C; Quesada, Gustavo A T; Gomes, Brenda P F A

    2010-06-01

    Dens invaginatus is a critical condition for endodontic treatment once it frequently presents a complex internal anatomy and might be associated with incomplete root and apical development. Three cases of dens invaginatus with open apex in maxillary lateral incisors are presented. In the first case, apexification with calcium hydroxide pastes was performed. In the second case, initial treatment was carried out, but the patient missed follow-up appointments for 15 months. In the third case, periradicular surgery was done as a result of the persistence of exudates and incomplete root canal development after conservative endodontic treatment. Oehlers' type I dens invaginatus was also present in the opposite maxillary lateral incisor in 2 patients, but no treatment was required. At subsequent follow-up, the periradicular region was completely healed, and postoperative radiographs revealed good bone healing in all patients. Patient #2 had an increase in root length, and after 38 months the apical third was completely calcified. A careful clinical and radiographic examination should be conducted to identify dens invaginatus associated with incomplete root development and open apexes. Adequate periradicular healing was observed after the infection, and the anatomical features in the root canal system were accessed. Because a long period is required to determine the clinical outcome, patient compliance must be encouraged. Copyright 2010. Published by Elsevier Inc.

  14. Threatened fishes of the world: Coptodon walteri (Thys van den Audenaerde 1968 (Perciformes: Cichlidae

    Directory of Open Access Journals (Sweden)

    Konan Felix Koffi

    2016-06-01

    Full Text Available Coptodon walteri Thys van den Audenaerde 1968, an endemic cichlid of Ivory Coast and Liberia, is assessed as Near Threatened due to fishing pressure and loss of habitats, and aquatic pollution as a result of extensive clandestine gold mining in the bed of the Cavally River. There is an immediate need for developing conservation and management plans for this species.

  15. Kommunen er død - længe leve den digitale disruption

    DEFF Research Database (Denmark)

    Andersen, Kim Normann

    2017-01-01

    "New Public Management is Dead. Long Live the Digital Era." Sådan proklamerede Patrick Donleavy digitaliseringens muligheder i en banebrydende artikel fra 2005. Med en omskrivning af dette citat til "Kommunen er død, længe leve den digitale disruption", er ballet åbnet for denne artikel....

  16. Der Lange Krieg der Niederlande : Besatzung, Gewalt und Neuorientierung in den vierziger Jahren

    NARCIS (Netherlands)

    Romijn, Peter

    2017-01-01

    Der »lange Zweite Weltkrieg« der Niederlande als integrierte Geschichte der Gewalt unter deutscher Besatzung und im indonesischen Unabhängigkeitskrieg. Seit dem Einmarsch deutscher Truppen im Mai 1940 gerieten die neutralen Niederlande in jenen Strudel unbegrenzter Gewalt, den das NS-Regime

  17. Text-Bruecken zwischen den Kulturen Festschrift zum 70 Geburtstag von Bernd Spillner

    CERN Document Server

    Rentel, Nadine

    2013-01-01

    Diese Festschrift zum 70. Geburtstag von Professor Bernd Spillner enthält Beiträge zu den Themenbereichen Fachsprachen- und Stilforschung, Sprachvergleich, Medienkommunikation und Fremdsprachenerwerb. Der Band bietet weiterhin ein breites Spektrum an Aufsätzen zur relativ neuen linguistischen Teildisziplin der Kulinaristik.

  18. Skal vi være venner? En undersøgelse af den personlige relations betydning for det faglige udbytte af ph.d.-vejledning

    DEFF Research Database (Denmark)

    Bengtsen, Søren Smedegaard

    , om de i en mere personlig relation kan opretholde den neutrale og kritiske tilgang til deres studerendes arbejde, som de mener er målet med vejledningen. Den personlige dimension forstås hér som en mulig trussel og bias i forhold den kritisk-faglige og sobre, professionelle rolle som vejlederne...

  19. Faktorer som påverkar gäster under en restaurangupplevelse : En fallstudie om den fysiska omgivningen på restaurangen Indigo och hur den kan påverka gäster

    OpenAIRE

    Andersson, Ida

    2016-01-01

    I denna studie undersöks det specifika för den fysiska omgivningen och hur den påverkar gäster vid en restaurangupplevelse. Avhandlingen bygger på redan befintliga teorier om olika aspekter av den fysiska omgivningen, upplevelserummet och sinnesmarknadsföring. Teorierna inkluderar Mary Jo Bitners teorier om servicescape (även Lena Mossbergs svenska teorier om upplevelserummet baserade på bland annat Bitners teorier) och Hulténs teorier om sinnesmarknadsföring. Undersökningen består...

  20. Distribution, den characteristics and diet of the Indian Fox Vulpes bengalensis (Mammalia: Canidae in Karnataka, India: preliminary observations

    Directory of Open Access Journals (Sweden)

    H.N. Kumara

    2012-11-01

    Full Text Available The Indian Fox Vulpes bengalensis inhabits relatively dry areas with scrub thorn forests, deciduous forests, short grasslands and marginal croplands. Since it is a widely distributed species, especially in the dry tracts, very little attention has been paid to it by researchers and wildlife managers. We conducted an extensive survey in the south Indian state of Karnataka to determine the conservation status of the Indian Fox. We also carried out a more detailed observation in a small region called “Jayamangali Blackbuck Block” (JBB and surrounding private lands to study the den site characteristics of the species. Except for a few districts in the Western Ghats and the west coastal region, the fox was present throughout Karnataka. Relatively higher encounter rates were observed in regions with extensive grasslands. We located 52 dens during the study in JBB which provide a minimum of 12dens/km2 with 1.33/km2 active dens. Circumference of den sites were smaller in JBB than in the adjoining private lands indicating that foxes frequently shifted dens in this area. The number of openings and active openings increased as the circumference of the den site increased. Fecal analysis revealed remains of certain species of plants, vertebrates and invertebrates, with arthropods as the major food items of the fox.

  1. Noise and vibration levels in artificial polar bear dens as related to selected petroleum exploration and developmental activities

    International Nuclear Information System (INIS)

    Blix, A.S.; Lentfer, J.W.

    1992-01-01

    Petroleum exploration and development are occurring in various locations in the Arctic, where there are important denning sites for polar bears. Petroleum activities usually coincide with winter denning activities by bears, who may abandon dens if subject to prolonged annoyance. A study was carried out to measure noise and vibration levels in artificial polar bear dens at Prudhoe's Bar, Alaska, resulting from seismic testing, drilling and transport. A microphone and an accelerometer were frozen to the floor of the dens, with leads passed through a consolidated snow filled entrance to a truck, tent or helicopter. Tests were carried out on land, sea ice, and next to a drilling tower on an artificial island, which was also used to measure noise levels resulting from a helicopter taking off. It was concluded that the dry and wind-beaten arctic snow muffles both sound and vibration extremely well, and it is unlikely that polar bears in their dens will be disturbed by the type of petroleum-related activities measured, provided they do not take place within 100 m of the dens. 8 refs., 7 figs., 1 tab

  2. Dressing the Black Body. Mode, Hairstyle und Schwarzsein in den USA – von den 1970er-Jahren bis zu Barack Obama

    Directory of Open Access Journals (Sweden)

    Philipp Dorestal

    2017-08-01

    Full Text Available Conventional forms of African American activism and organization in the second half of the twentieth century have been the subject of academic research for quite some time, but less attention has been devoted to symbolic and body political forms of intervention. Looking at the Afro hairstyle and hip hop culture, this article explores how African American identity has been reflected through Style Politics. It outlines the history of African American hairstyles from the 1970s until the 2000s and identifies elements of popular culture such as Blaxploitation movies and rap music as constitutive of African American fashion. The question of ›respectability‹ that surfaced in the context of racist discourses about black women will be examined through the example of First Lady Michelle Obama, who rose to fame as a fashion icon. In conclusion, the article discusses the case of Trayvon Martin, an African American teenager who was killed in 2012 while wearing a hoodie, making the garment once again an object of contention and a symbol of protest. * * * Klassische Formen des Aktivismus und der Organisierung von African Americans in der zweiten Hälfte des 20. Jahrhunderts sind schon seit geraumer Zeit Gegenstand wissenschaftlicher Studien. In der bisherigen Forschung weniger gewürdigt wurden jedoch symbolische und körperpolitische Interventionsformen. Dieser Aufsatz geht anhand der Afro-Frisur und der durch die Hip-Hop-Kultur inspirierten Mode der Frage nach, wie afroamerikanische Identität über Style Politics verhandelt wurde. Skizziert wird die Geschichte afroamerikanischer Hairstyles von den 1970er- bis zu den 2000er-Jahren. Weiterhin werden Elemente der Populärkultur wie das Blaxploitation-Kino oder die seit den 1980er-Jahren verbreitete Rap-Musik als stilbildend für afroamerikanische Modephänomene identifiziert. Die Frage der »Respektabilität«, die im Kontext rassistischer Diskurse über schwarze Frauen auftauchte, wird anhand von Michelle

  3. «media literacy» und «media (literacy) education» in den USA – ein Brückenschlag über den Atlantik

    OpenAIRE

    Silke Grafe

    2011-01-01

    Trotz einzelner Bemühungen verlaufen die pädagogischen Diskussionen um «media literacy» und «media (literacy) education» sowie um Medienkompetenz und Medienbildung im deutschen Sprachraum und in den USA weitgehend unabhängig voneinander. Vor diesem Hintergrund wird im Beitrag zunächst beschrieben, welche methodischen Herausforderungen eine international vergleichende Betrachtung beinhaltet. Anschliessend werden zentrale Begriffe im Kontext der pädagogischen Diskussion des Lernens mit und über...

  4. Importance of native grassland habitat for den-site selection of Indian foxes in a fragmented landscape.

    Directory of Open Access Journals (Sweden)

    Girish Arjun Punjabi

    Full Text Available Fragmentation of native habitats is now a ubiquitous phenomenon affecting wildlife at various scales. We examined selection of den-sites (n = 26 by Indian foxes (Vulpes bengalensis in a highly modified short-grassland landscape in central India (Jan-May, 2010. At the scale of the home-range, defined by an 800 m circular buffer around den sites, we examined the effect of land-cover edges and roads on selection of sites for denning using a distance-based approach. At the smaller den-area scale, defined by a 25 m x 25 m plot around den and paired available sites, the effect of microhabitat characteristics was examined using discrete-choice models. Indian foxes selected den-sites closer to native grasslands (t = -9.57, P < 0.001 and roads (t = -2.04, P = 0.05 than random at the home-range scale. At the smaller scale, abundance of rodents and higher visibility increased the odds of selection of a site by eight and four times respectively, indicating resource availability and predator avoidance to be important considerations for foxes. Indian foxes largely chose to den in human-made structures, indicated by the proportion of dens found in earthen bunds (0.69 and boulder piles (0.27 in the study area. With agricultural expansion and human modification threatening native short-grassland habitats, their conservation and effective management in human-dominated landscapes will benefit the Indian fox. The presence of some human-made structures within native grasslands would also be beneficial for this den-dependent species. We suggest future studies examine the impact of fragmentation and connectivity of grasslands on survival and reproductive success of the Indian fox.

  5. Collar temperature sensor data reveal long-term patterns in southern Beaufort Sea polar bear den distribution on pack ice and land

    Science.gov (United States)

    Olson, Jay W; Rode, Karyn D.; Eggett, Dennis L.; Smith, T.S.; Wilson, R. R.; Durner, George M.; Fischbach, Anthony; Atwood, Todd C.; Douglas, David

    2017-01-01

    In response to a changing climate, many species alter habitat use. Polar bears Ursus maritimus in the southern Beaufort Sea have increasingly used land for maternal denning. To aid in detecting denning behavior, we developed an objective method to identify polar bear denning events using temperature sensor data collected by satellite-linked transmitters deployed on adult females between 1985 and 2013. We then applied this method to determine whether southern Beaufort Sea polar bears have continued to increase land denning with recent sea-ice loss and examined whether sea-ice conditions affect the distribution of dens between pack-ice and coastal substrates. Because land use in summer and autumn has also increased, we examined potential associations between summering substrate and denning substrate. Statistical process control methods applied to temperature-sensor data identified denning events with 94.5% accuracy in comparison to direct observations (n = 73) and 95.7% accuracy relative to subjective classifications based on temperature, location, and activity sensor data (n = 116). We found an increase in land-based denning during the study period. The frequency of land denning was directly related to the distance that sea ice retreated from the coast. Among females that denned, all 14 that summered on land subsequently denned there, whereas 29% of the 69 bears summering on ice denned on land. These results suggest that denning on land may continue to increase with further loss of sea ice. While the effects that den substrate have on nutrition, energetics, and reproduction are unclear, more polar bears denning onshore will likely increase human-bear interactions.

  6. The Possible HEPATOPROTECTIVE Effect Of Taurine In Diethyl Nitrosamine (DEN) Treated Rats

    International Nuclear Information System (INIS)

    SHAROUD, M.N.M.; ABD EL-MONEIM, A.E.

    2009-01-01

    Egypt occupies a progressed rank among the developing countries in prevalence of hepatic diseases and liver disorders. Hepatopathies are major public health problems in Egypt where hepatitis C virus (HCV) and schistosomia record a high prevalence which may account for the most serious clinical disorders e.g. liver cirrhosis and liver cancer.Vascular endothelial growth factor (VEGF) is the most specific and potent mitogen of endothelial cells. Hepatocellular carcinoma (HCC) is characterized by increased pathologic angio genesis and increased level of the vascular endothelial growth factor. Taurine is clinically used as a protecting agent of the liver and recently, its chemo preventive effect on rat large bowel carcinogenesis was reported.In this study, forty male albino rats were used and diethyl nitrosamine (DEN) was used for inducing pathological changes in different organs while taurine was given to investigate the possible protective effects on liver tissue after DEN treatment.The results showed elevation in serum AST, ALT, ALP, urea, creatinine, cholesterol and triglycerides in DEN group. On the other hand, estimation of sex hormones exhibited marked decrease in testosterone and significant increase in estradiol levels in DEN group as compared to control and taurine groups.Pathological examination of rat liver showed that DEN induced peri portal inflammatory cellular infiltrate, piece meal necrosis and necro inflammatory activity as well as the appearance of areas of haemorrhage and ballooning in hepatocytes. Moreover, moderate to high expression of V EGF in the cytoplasm of hepatocytes and sinusoidal cells were clearly observed while in control and taurine groups, normal architecture of hepatic tissue of rats was found and normal distribution of V EGF as diffuse or focal granular cytoplasmic stain in rats liver were observed. The prophylactic group showed minimal and mild changes in the liver tissue with absence of necro inflammation and the V EGF expression

  7. Nuclear chemistry and Radiochemistry in the USA; Kern- und Radiochemie in den USA

    Energy Technology Data Exchange (ETDEWEB)

    Kronenberg, A. [Los Alamos National Lab., NM (United States). Isotope and Nuclear Chemistry Div.; Stoyer, M. [Lawrence Livermore National Lab., CA (United States)

    2004-04-01

    Nuclear chemistry and radiochemistry are very young sciences which developed at an extremely brisk pace within a very short period of time after the discovery of nuclear fission in 1938, and caused profound societal changes. In the United States, nuclear chemistry developed very differently from Germany, where nuclear research initially had been banned after the Second World War. The prime mover in the development in the United States was the Manhattan Project, the construction of the atomic bomb. The counteract the impending shortage of qualified personnel, important institutions have begun to establish training and support programs in the field. The National Laboratories in the United States introduced a National Security Internship Program, while the U.S. Department of Energy (DOE) tries to promote cooperation, and thus the training of personnel, by launching programs of its own. Yet, a greater shortage of qualified personnel is becoming apparent. The situation of nuclear chemistry and radiochemistry in the United States can be summarized in the finding that research at the National Laboratories is very wide ranging. It receives sufficient funds from the DOE. However, the National Laboratories show a very high proportion of elderly personnel, a problem which will have to be corrected in the years to come. This may be helped by the Summer Schools financed by the DOE, though a summer school of six weeks cannot replace a sound training in nuclear chemistry of the kind still to be found in Germany. (orig.) [German] Kern- und Radiochemie sind sehr junge Wissenschaften, die sich nach der Entdeckung der Kernspaltung 1938 innerhalb kuerzester Zeit extrem rasant entwickelt und tiefe gesellschaftliche Veraenderungen bewirkt haben. In den USA hat sich die Kernchemie sehr unterschiedlich im Vergleich zu Deutschland entwickelt, wo die Kernforschung nach dem 2. Weltkrieg vorerst verboten war. Massgeblich in den USA war dabei das Manhatten-Projekt zum Bau von Nuklearwaffen

  8. The use of cone beam computed tomography in the conservative management of dens invaginatus: a case report.

    Science.gov (United States)

    Patel, S

    2010-08-01

    To report the use of cone beam computed tomography (CBCT) in the assessment of dens invaginatus. Chronic periradicular periodontitis associated with an infected invagination was diagnosed in an immature mandibular lateral incisor tooth. A CBCT scan revealed essential information for the management of the tooth. There was no communication between the invagination and the main root canal. Endodontic treatment was carried out on the invagination. The root canal with a vital pulp was left untreated, thus allowing the tooth to mature and continue to develop. * The true nature of dens invaginatus cannot always be estimated from conventional radiographs. * Cone beam computed tomography is a useful diagnostic tool in the management of dens invaginatus.

  9. ”Hvis du redder et menneske, så har du reddet hele verden”. Den gode moralen og den dialogiske samtalen i et norsk klasserom

    Directory of Open Access Journals (Sweden)

    Sylvi Penne

    2009-03-01

    Full Text Available Artikkelen tar utgangspunkt i observasjoner fra et klasserom på ungdomstrinnet der elevene arbeider tverrfaglig i norsk, KRL og samfunnsfag. Temaet er blant annet jødenes situasjon før og under krigen. Læreren er faglig dyktig, erfaren og sterkt engasjert i å formidle overgrepene som ble begått mot jødene, og elevene er velvillige. Likevel er elevenes konklusjon at de i en krigssituasjon med en etisk fordring, ikke ville ha våget å gjøre noe for å hjelpe jødene.      Med utgangspunkt i diskursteori, sosiokulturell teori og nyere kognitiv teori diskuteres disse svarene som ”naturlige” svar i den konteksten som skapes i klasserommet, og gjennom det språket som elevene utfordres i, deres ”mediational means”. Et konkret didaktisk problem er at den historiske fortellingen er borte og erstattet av empatisk innlevelse. Artikkelen avslutter med å hevde at uten en narrativ ramme forsvinner muligheten for etisk erkjennelse gjennom konteksten som skapes, og gjennom materialet som foreligger. Her ligger imidlertid nye didaktiske muligheter for engasjerte lærere, ikke minst gjennom litteraturundervisning.

  10. Rückwärtsintegration - Zu den Verhältnissen Gymnasium, Hochschule und Arbeitswelt

    Science.gov (United States)

    Schmid, Gerhard; Heppner, Winfried; Focht, Eva

    In seiner 2007 erschienen Sammlung von Vorträgen und Essays beschäftigt sich Wolfgang Frühwald, mit der Frage "Wieviel Wissen brauchen wir?“ [1] Die Kernproblematik moderner Wissenschaft und Forschung sieht der Autor, emeritierter Ordinarius für Neuere Deutsche Literaturwissenschaft und von 1992 bis 1997 Präsident der Deutschen Forschungsgemeinschaft, einerseits in der zunehmenden Spezialisierung der Wissenschaftsbereiche, andererseits in der Gefahr der Abkoppelung der Naturwissenschaften von den Geisteswissenschaften. Wiederholt plädiert er dafür, über der rasanten Entwicklung beispielsweise in der Biologie und Physik, die historische, gesellschaftliche und besonders die ethische Dimension der Forschung nicht zu übersehen und fordert eine übergeordnete Theorie der Wissenschaft, die nur im Dialog zwischen den einzelnen Fachgebieten zu entwickeln sei.

  11. Standards for protection against electric shock; Errichtungsnormen fuer den Schutz gegen elektrischen Schlag

    Energy Technology Data Exchange (ETDEWEB)

    Biegelmeier, G. [Privatstiftung ' ' Elektroschutz' ' , Vienna (Austria); Spindler, U. [Moeller Holding GmbH und Co. KG, Bonn (Germany)

    2001-09-01

    An improved concept for protection against electric shock current is presented for discussion among IEC, CENELEC, and DKE. In particular, the loop resistance presents a practical way of defining simple shutoff conditions especially in systems with a PE conductor. Further, a low-voltage protection concept is presented which would make the VDE 0100 more user-friendly. [German] Der Aufsatz stellt ein verbessertes Konzept fuer den Schutz gegen elektrischen Schlag vor; damit sollen weitere Diskussionen innerhalb der IEC, CENELEC und der DKE angeregt werden. Im Besonderen wird darauf hingewiesen, dass duerch den Schleifenwiderstand eine praxisfreundliche Moglichkeit besteht, speziell fuer Anlagen, in denen ein PE-Leiter installiert ist, einfache Ausschaltbedingungen aufgrund von Ausschaltstromfaktoren festzulegen. Weiter wird ein geandertes Schutzkleinspannungskonzept vorgestellt. Damit koennte dem weltverbreiteten Wunsch nach einer anwenderfreundlicheren VDE 0100 Rechnung getragen werden. (orig.)

  12. Kvinden, diakonissen og sygeplejersken i Den danske Diakonissestiftelses etableringsfase 1863-1873

    DEFF Research Database (Denmark)

    Lauritzen, Jette

    1863 to 1873. This is a subject that is still unexplored, and which makes the examination relevant to the history of nursing. Hence, the aim of this thesis is to examine, using publicized literary sources, how the woman as deaconess and nurse fit into contemporary society in the period from 1863......Summary – The Woman, the Deaconess and the Nurse in the establishing phase of ‘Den danske Diakonissestiftelse’ 1863-1873 The thesis examines how the female role as deaconess and nurse manifested itself in the establishing phase of ‘Den danske Diakonissestiftelse’( The danish Deaconess House) from...... had in relation to the task as deaconess are found and interpreted. With the historical analysis, three themes have emerged. These themes are: The woman and the deaconess’ status in that periode, the calling and the deaconess’ religious standing, and the secular and religious attitudes to nursing...

  13. Man nature technology. Answers for the classroom; Mensch Natur Technik. Antworten fuer den Unterricht

    Energy Technology Data Exchange (ETDEWEB)

    Heymann, H.W.; Kattmann, U.; Otto, G.; Staeudel, L.; Weiberg, G. [eds.

    1999-06-01

    Also school and instruction are subject to global changes and at the same time a mirror image of this changing processes and even self factors influencing this changes. This brochure will demonstrate this changes in the domain of environment, energy utilization and influencing nature on criterions like: Living with nature and engineering; understanding nature and engineering; interviewing engineering and handle carfully. The single units of lessons can be excellently applied for instruction. [Deutsch] Auch Schule und Unterricht sind globalen Veraenderungen unterworfen und sind zugleich Spiegelbild dieser Veraenderungsprozesse und gleichzeitig Faktoren selbst, die die Veraenderungen beeinflussen. Aufzeigen will dies die vorliegende Broschuere im Bereich der Umwelt, Energieanwendung, Naturbeeinflussung nach den Kriterien: Mit Natur und Technik leben; Natur und Technik verstehen; Technik befragen und sorgsam handeln. Die einzelnen Beitraege lassen sich hervorragend fuer den Unterricht verwenden.(GL)

  14. Den danske samfundsudvikling 1848-2012 og marxistisk, neoklassisk, keynesiansk, monetaristisk og nykeynesiansk teori

    DEFF Research Database (Denmark)

    Madsen, Poul Thøis

    Efter i adskillige år at have undervist ud fra andres bøger og efter mange tilløb besluttede forfatteren sig for at skrive sin egen forskningsbaserede bog til Det Samfundsvidenskabelige Fællessemester, som dækker fem lektioner om den politiske økonomis historie og den danske økonomiske udvikling........ Ambitionen har været at udarbejde en kort appetitvækker, der gør, at studerende får et overblik og forstår nogle basale sammenhænge og får lyst til at vide mere om økonomisk teori, dansk og international økonomi og ikke mindst debatterne herom....

  15. Rapid endodontic management of type II dens invaginatus using an MTA plug: a case report.

    Science.gov (United States)

    Fayazi, Sara; Bayat-Movahed, Saeed; White, Shane N

    2013-01-01

    Dens invaginatus is an anomaly characterized by an infolding of enamel and dentin that can lead to caries and pulpal death while the tooth is still immature, and present difficulties with diagnosis and treatment. Generally such open apices are managed by long term apexifaction procedures. This article demonstrated rapid management of a maxillary lateral incisor having a type 2 dens invaginatus, necrotic pulp, open apex and very large periradicular lesion using calcium hydroxide for one week prior to placement of a mineral trioxide aggregate (MTA) plug. After setting of the MTA, the remaining canal space was obturated using a warm vertical gutta percha technique. At 6 months follow-up the patient was asymptomatic, the lesion had almost entirely resolved, and, the root was already completely surrounded by bone. ©2012 Special Care Dentistry Association and Wiley Periodicals, Inc.

  16. A clinical report of Type III dens invaginatus: relevant aspects of a combined therapeutic approach.

    Science.gov (United States)

    Silva E Souza, Patricia de Almeida Rodrigues; de Almeida, Bruno Vila Nova; Tartari, Talita; Alves, Ana Claudia Braga Amoras; Tuji, Farbicio Mesquita; Silva E Souza, Mario Honorato

    2013-01-01

    Dens invaginatus is a developmental abnormality that alters dental morphology; as a result, treating this condition is a challenge for endodontic practices. This article describes how a combination of nonsurgical and surgical therapies was utilized to treat a maxillary central incisor with Type III dens invaginatus and vital pulp. The treatment plan included using computed tomography (CT) for a detailed analysis of the dental anatomy and periapical area, endodontic and surgical procedures, and a 4-year follow-up period that included periodic clinical and radiographic examinations. The follow-up examinations revealed a regression of the apical lesion and no other signs or symptoms. Based on the present case report, the authors concluded that this combination of surgical and nonsurgical approaches was effective and that CT is a valuable auxiliary tool for the study of dental anatomy.

  17. A Type III Dens Invaginatus with Unusual Helical CT and Histologic Findings: A Case Report.

    Science.gov (United States)

    Mishra, Satyaranjan; Mishra, Lora; Sahoo, Sujit Ranjan

    2012-11-01

    Dens Invaginatus (DI) is a rare developmental anomaly which affects the tooth, which shows an infolding of enamel and dentine which extends into the pulp chamber and sometimes into the root. The aim of this case report was to describe its radiographic findings, to emphasize the bizarre morphology and the difficulties which are encountered in the diagnosis by using conventional radiographic techniques and the importance of computed tomography as a valuable diagnostic aid. Dens Invaginatus is clinically significant due to the possibility of an early pulpal involvement and the chronic periapical lesions are often associated with this anomaly without any clinical symptoms. Difficulties are encountered during the endodontic treatment, owing to the complex root canal anatomy; therefore, a proper radiologic evaluation by using different imaging modalities, is essential for its successful treatment.

  18. Management of 'labial' type of dens invaginatus: A rare case report.

    Science.gov (United States)

    Raut, Ambar W; Mantri, Vijay; Kala, Shubham; Raut, Radha A

    2016-01-01

    Dens invaginatus is a developmental anomaly resulting in an infolding of the enamel organ into the dental papilla prior to calcification of the dental tissues. The invagination predisposes the tooth for the development of dental caries. Conventional radiographs do not provide detailed information concerning the three-dimensional image, which would help the clinician in making a confirmatory diagnosis and planning the treatment before undertaking the actual treatment. This report describes a case where Oehlers type II dens invaginatus was diagnosed with the help of spiral computed tomography. The locations of the primary root canal and the invagination were assessed from spiral computed tomography scan images. Usually, the invagination is present on palatal/lingual side. However, in this case, the invagination was unusually located on labial side, which has yet not been reported. The tooth also showed certain unusual morphological features.

  19. A Rare Case of Parkinson's Disease with Severe Neck Pain Owing to Crowned Dens Syndrome

    OpenAIRE

    Teruyuki Takahashi; Masato Tamura; Keiichi Osabe; Takashi Tamiya; Kenji Miki; Mai Yamaguchi; Kanno Akira; Satoshi Kamei; Toshiaki Takasu

    2014-01-01

    Background: Pain is regarded as one of the most common nonmotor symptoms in Parkinson's disease (PD). In particular, musculoskeletal pain has been reported as the most common type of PD-associated pain. Crowned dens syndrome (CDS), related to microcrystalline deposition in the periodontoid process, is the main cause of acute or chronic cervical pain. Case Presentation: This report describes the case of an 87-year-old woman who had severe bradykinesia, muscle rigidity, gait disturbance and nec...

  20. Udfordringer og mulige veje for den nye fællesfaglighed i naturfagene i folkeskolen

    DEFF Research Database (Denmark)

    Krogh, Lars Brian; Daugbjerg, Peer; Ormstrup, Inger Charlotte Nautrup

    2016-01-01

    naturfagsundervisningen på læreruddannelsen. Med afsæt i den eksisterende forskningslitteratur om tværfagligt samspil (afsæt i (Czerniak, 2007) indenfor naturfag designedes et spørgeskema mhp. at indfange læreres forståelse af tværfagligt samspil, deres erfaringer, selvtillid (self-efficacy) og praksis mht. fagligt...

  1. Vel færden, den sunde levemåde og foregribelsen

    DEFF Research Database (Denmark)

    Agerholm, Frank Juul

    2015-01-01

    Såvel forebyggelse af sygdom som fremme og bevarelse af sundhed lader sig fatte som forskellige måder at foregribe menneskets fremtidige helbred på. Afsættet for denne artikel er, at såvel regimenteringen af den sunde levemåde som menneskets vel færden har med foregribelse at gøre; og at der i fo...

  2. Reliabilitet av den norske versjonen av Timed Up and Go (TUG)

    OpenAIRE

    Botolfsen, Pernille; Helbostad, Jorunn L.

    2010-01-01

    Hensikt: Vurdere intratester-, intertester-, og test-retest reliabilitet av den norske versjonen av «Timed Up and Go» (TUG). Design: Metodestudie som benytter tverrsnittsstudie-design. Materiale og metode: Tretti personer (20 kvinner og 10 menn) over 75 år (gjennomsnitt 82,5) gjennomførte TUG tre ganger. To fysioterapeuter skåret deltagerne. For utregning av relativ reliabilitet ble intraclass correlation coefficient (ICC) anvendt, og for utregning av absolutt reliabilitet b...

  3. Concommitant occurance of dens invaginatus and talon cusp: A case report

    OpenAIRE

    Yadav, Monica; S.M, Meghana; Kulkarni, Sandip R.

    2011-01-01

    PURPOSE: Morphological dental anomalies of the maxillary lateral incisors are relatively common. However, their simultaneous occurrence is a relatively rare event. We report a case of dens invaginatus and talon cusp concurrently affecting maxillary lateral incisors. The etiology, pathophysiology, association with other dental anomalies, as well as various treatment modalities of these anomalies are discussed. CASE DESCRIPTION: An 18-year-old male patient reported with a complaint of crowding ...

  4. DIE ERFORSCHUNG DER VEGETATIONSDYNAMIK IN DEN NORDWESTEN DES BANATS (KREIS TEMESCH, RUMÄNIEN

    Directory of Open Access Journals (Sweden)

    M. Fizitea

    2004-01-01

    Full Text Available Die Evolution und Aufeinanderfolge der Vegetationsvereine erfolgte in enger Verbindung mit den pädoklimatischen und zooantropischen Faktoren. Die Periode der antropogenen Vegetation wird charakterisiert durch die Vorherrschaft der gezüchteten Arten, welche zur Verbreitung der Agrophytozönosen sowie der ruderolen und segetalen Vegetation führte und somit die vorherigen Phytozönosen ersetzt.

  5. Kjemiske og biokjemiske studier av den maliske medisinplanten Terminalia macroptera : Etnofarmakologiske studier i Mali

    OpenAIRE

    Pham, Anh Thu

    2009-01-01

    Blader fra den vest-afrikanske planten Terminalia macroptera ble ekstrahert suksessivt med diklormetan og metanol. Disse utgjorde råekstraktene, som var utgangspunkt for videre separasjon og fraksjonering ved hjelp av væske-væske ekstraksjon, kolonnekromatografi og tynnsjiktskromatografi. De isolerte forbindelsene ble strukturoppklart ved 1H-, 13C-, APT- og COSY NMR-spektroskopi. Shikimisyre, flavonoidglykosidene rutin og narcissin, og ellagitanninet corilagin ble isolert fra butanol-fasen...

  6. Technische Systeme für den Herzersatz und die Herzunterstützung

    Science.gov (United States)

    Schöb, Reto; Loree, Howard M.

    Herzkrankheiten verursachen allein in den Vereinigten Staaten jährlich mehr als 700’000 Todesfälle. Ungefähr 3 Millionen Patienten in den U.S.A. leiden gemäss der American Heart Association (AHA) und dem National Heart, Lung and Blood Institute (NHLBI) an kongestivem Herzversagen (Congestive Heart Failure, CHF), welches eine chronische, sehr entkräftende und degenerative Krankheit ist: Das Herz ist dabei unfähig, hinreichend Blut zu den Organen des Körpers zu pumpen. Über 400’000 Fälle von CHF werden jedes Jahr diagnostiziert. Ähnliche Zahlen werden für Europa und Japan zusammen geschätzt. Basierend auf Daten vom AHA und NHLBI beträgt die fünfjährige Überlebensrate für CHF-Patienten lediglich etwa 50% [1]. 70’000-120’000 dieser Patienten könnten von einer Herzverpflanzung profitieren. 1999 wurden in den USA aber nur 2185 Herztransplantationen durchgeführt während die Warteliste über 4000 Patienten beträgt [2]. Ein akuter Mangel an Spenderherzen und die enormen Kosten (250’000-400’000 USD pro Patient) sind die begrenzenden Faktoren für Herztransplantationen [3]. Dies bedeutet, dass eine riesige Anzahl von Patienten durch ein zuverlässiges und verschleissfreies, nichtthrombotisches, total implantierbares, künstliches Herz gerettet werden könnten. Bis heute jedoch kein derartiges Implantat kommerziell verfügbar.

  7. Case study of total energy system, Sher-Den Mall, Sherman, Texas

    Energy Technology Data Exchange (ETDEWEB)

    Myrtetus, G.B.; Levey, M.D.

    1980-12-01

    The Sher-Den Mall shopping center receives all of its electricity and heating and cooling energy from a total energy plant located within the shopping center proper. Four engine-generator units are fueled primarily by natural gas, with some fuel oil use. The following are presented: initial corporate planning, investigation, and feasibility studies; a description of the total energy system; capital costs; plant operations, and revenue structure. Tables, figures, exhibits, and equipment specification lists are presented. (MHR)

  8. Does globalisation threaten a sustainable environmental protection?; Gefaehrdet die Globalisierung den nachhaltigen Umweltschutz?

    Energy Technology Data Exchange (ETDEWEB)

    Ritter, K. [DELIWA Berufsvereinigung fuer das Energie- und Wasserfach e.V., Hannover (Germany)

    1997-02-01

    Social and environmental-orientated achievements and the knowledge of the last decades are repealed by globalisation. If inefficient national regulations are not replaced by international rules, our `Blue Planet` will be overstressed in the near future. (orig.) [Deutsch] Die Globalisierung setzt die sozialen und umweltbezogenen Errungenschaften und Erkenntnisse, die in den zurueckliegenden Dekaden erarbeitet wurden, ausser Kraft. Wenn es nicht gelingt, anstelle der wirkungslos gewordenen nationalen Regularien internationale Regeln zu setzen, wird unser `Blauer Planet` bald ueberfordert sein. (orig.)

  9. Single-session treatment of a major complication of dens invaginatus: a case report.

    Science.gov (United States)

    Caldari, Mauro; Monaco, Carlo; Ciocca, Leonardo; Scotti, Roberto

    2006-05-01

    Dens invaginatus is a dental malformation that may give rise to several complications. Caries of the invagination can severely weaken the whole tooth, making it susceptible to fracture. Subgingival fractures are major complications threatening tooth survival and usually require periodontal/orthodontic/prosthetic treatment if long-term viability is to be ensured. This article describes a case of single-session restoration of a fractured invaginated tooth by means of endodontic treatment followed by fragment reattachment.

  10. Et slag for den stolte håndværker

    DEFF Research Database (Denmark)

    Henriksen, Carsten

    2013-01-01

    Snart vil samfundet skrige af mangel på dygtige håndværkere, lyder det fra politikere og erhvervsfolk. Asterisk har sat den ansete amerikanske sociolog Richard Sennett i stævne for at få svar på, hvad vi kan lære af godt håndværk, og hvorfor det har trange kår i et konkurrencestyret vidensamfund....

  11. Einflussfaktoren auf den persönlichen Stress bei Studienanfängern in der Humanmedizin

    OpenAIRE

    Schulze, Johannes; Duderstadt, Monika; Hodjat, Beheshta; Wu, Yue-Ying

    2013-01-01

    Die derzeitige Regelung der Zulassung zum Medizinstudium berücksichtigt die Abiturnote und Wartezeiten; universitäre Parameter können diese Kriterien modifizieren. Hierzu zählen z.B. die Leistungskurswahl, wie es an der Goethe-Universität Frankfurt gehandhabt wird. Im Rahmen der Untersuchung zu Stress und Resilienz bei Medizinstudenten haben wir bei den Studenten des 1. vorklinischen Semesters soziodemographische Daten erhoben, die einen Kohortenvergleich erlauben. Die chronische Stressbelast...

  12. Management of type II dens invaginatus and peg laterals with spacing of maxillary anteriors

    Directory of Open Access Journals (Sweden)

    Tina Puthen Purayil

    2015-01-01

    Full Text Available A case of peg-shaped lateral with dens invaginatus (DI and midline diastema affecting maxillary incisors in a 32-year old female patient is discussed. This clinical report describes the endodontic management of DI in tooth #12, esthetic correction of peg laterals and diastema with all ceramic restorations. Satisfactory results were achieved esthetically following treatment and gave the patient a new confident smile.

  13. Moms og grænsehandelskoncepter i lyset af den seneste praksis

    DEFF Research Database (Denmark)

    Jensen, Dennis Ramsdahl

    2010-01-01

    Den 21. juni afsagde Højesteret dom i SKM2010.396.HR. Sagen omhandler en dansk virksomhed, der havde benyttet sig af et såkaldt grænsehandelskoncept i forbindelse med salg af jet-både til danske kunder. I modsætning til Landsskatteretten og Vestre Landsret når Højesteret frem til, at der skal sva...

  14. Überlegungen zu den Ursachen und Wirkmechanismen des Konsums von Gewaltdarstellungen bei Kindern und Jugendlichen

    OpenAIRE

    Rauchfleisch, Udo

    1997-01-01

    Der Autor geht den Fragen nach, warum Kinder und Jugendliche in der Gegenwart z.T. intensiv Gewaltdarstellungen konsumieren und welches die Auswirkungen dieses Konsums sind. Die Motive des Gewaltkonsums sind u.a. Kompensation und Flucht vor Alltagsproblemen und vor innerer Leere, Identifikation mit großartigen Helden, das Erleben von Angst-Lust, Abgrenzung und Protest gegenüber der Elterngeneration sowie Mutprobe zur Etablierung des sozialen Status in der peer group. Die Wirkungen, die Gewalt...

  15. Die Entstehung des „Judenbildes“ in den Alltagsmedien des 19. Jahrhunderts

    Directory of Open Access Journals (Sweden)

    Ute Wrocklage

    2001-07-01

    Full Text Available In der zweiten Hälfte des 19. Jahrhunderts beginnen, Illustratoren und Zeichner von Bildwitzen und Karikaturen das stereotype und in der Folge antisemitische Bild vom Juden herauszubilden. Es findet schnell Eingang in die illustrierten Zeitschriften und Bilderbögen der Zeit. In diesen drei untersuchten Bildmedien kennzeichnen neben der Physiognomie diskriminierende Attribute den Juden als Typus. Dieser Entwicklung und der Herausbildung der Stereotype zum antisemitischen Judenbild geht die Arbeit nach.

  16. Vector competence of Aedes albopictus and Aedes aegypti (Diptera: Culicidae) for the DEN2-FJ10 and DEN2-FJ11 strains of the dengue 2 virus in Fujian, China.

    Science.gov (United States)

    Guo, Xiao-Xia; Li, Chun-Xiao; Zhang, Ying-Mei; Xing, Dan; Dong, Yan-De; Zhang, Heng-Duan; Qin, Cheng-Feng; Zhao, Tong-Yan

    2016-09-01

    Dengue is an acute, emerging, infectious disease transmitted by Aedes mosquitoes that has become a serious global public health problem. The DEN2-FJ10 and DEN2-FJ11 strains of the dengue 2 virus were originally isolated from the serum of a patient with dengue fever in Fujian Province, China, in 1999. Our data provide the first assessment of the vector competence of Aedes mosquitoes with respect to the DEN2-FJ10 and DEN2-FJ11 strains of the dengue virus. There were significant differences in the replication rates of these two viral strains in Aedes albopictus and Aedes aegypti (Pdengue 2 virus (P>0.05). In summary, our results indicate that Ae. albopictus and Ae. aegypti mosquitoes are moderately competent vectors of the DEN2-FJ10 and DEN2-FJ11 strains of the dengue virus and provide the first evidence of the effect of these two viral strains on the vector competence of mosquitoes in China. Copyright © 2016 Elsevier B.V. All rights reserved.

  17. Dzeramā ūdens kvalitāte centralizētajās ūdens apgādes sistēmās Latgales reģionā

    OpenAIRE

    Smirnova, Olita

    2012-01-01

    Maģistra darba mērķis ir novērtēt dzeramā ūdens kvalitāti centralizētajās ūdens apgādes sistēmās Latgales reģionā. Mērķa sasniegšanai tika ievākti dzeramā ūdens paraugi no centralizētās ūdens apgādes sistēmas Varakļānos kā modeļobjektā, iegūti Latgales reģiona ķīmisko un mikrobioloģisko analīžu dati, veikta to analīze un interpretācija. Atslēgvārdi: dzeramā ūdens kvalitāte, centralizētās ūdensapgādes sistēmas, ūdens kvalitātes indikatori

  18. Vejsalg, gårdbutikker og fritidsfiskere - den informelle økonomi på Samsø

    DEFF Research Database (Denmark)

    Rasmussen, Rasmus Ole

    2007-01-01

    Bidraget behandler den uformelle økonomi på Samsø, med udgangspunkt i den første kortlægning nogensinde af den del af den uformelle økonomi som er forbundet med salg af produkter som er relaterede til naturgrundlaget. De mange vejboder er et iøjnefaldende element i landskabet, og nogle af dem har...... efterhånden udviklet sig til gårdbutikker og kunstsalg, enkelte med egne hjemmesider. Og ved kysten bidrager et stort antal joller og småbåde ikke blot til at fastholde indtrykket af et aktivt forhold til det omkringliggende hav, men indgår samtidig som et væsentligt element i det uformelle økonomiske...

  19. Elementare Teilchen von den Atomen über das Standard-Modell bis zum Higgs-Boson

    CERN Document Server

    Bleck-Neuhaus, Jörn

    2013-01-01

    Der aktuelle Wissensstand der Kern- und Elementarteilchenphysik hat eine wechselvolle Entstehungsgeschichte, oft gekennzeichnet durch schockierend neue Begriffsbildungen, die sich bis heute auch den Physik-Studierenden nur unter Mühen erschließen. Dieses Buch nutzt die kontroversen und zugleich lehrreichen Entwicklungsprozesse selber für den Zugang zu den schwierigen neuen Konzepten. Es macht verständlich, wie das physikalische Bild von den kleinsten Teilchen heute aussieht und warum es so und nicht anders entstanden ist: vom Nachweis der Existenz der Atome bis zum derzeitigen Standard-Modell der Elementarteilchenphysik, in einem ständigen Wechselspiel zwischen etablierten theoretischen Modellen, bestätigenden oder widersprechenden experimentellen Befunden, zuweilen umstrittenen neuen Begriffsbildungen, verbesserten Experimenten usw. - ein Prozess, der sicher auch künftig weiter geht. Leitschnur der Darstellung ist eine auch im Detail möglichst nachvollziehbare Argumentation. Physik-Studierende vor...

  20. [Ulrike Plath. Esten und Deutsche in den baltischen Provinzen Russlands. Fremdheitskonstruktionen, Lebenswelten, Kolonialphantasien 1750-1850] / Lea Leppik

    Index Scriptorium Estoniae

    Leppik, Lea, 1962-

    2014-01-01

    Arvustus: Plath, Ulrike. Esten und Deutsche in den baltischen Provinzen Russlands. Fremdheitskonstruktionen, Lebenswelten, Kolonialphantasien 1750-1850 (Veröffentlichungen des Nordost-Institut, 11). Harrasowitz. Wiesbaden 2011.

  1. The utopian challenge to global capitalism by Walter van den Broeck in Terug naar Walden

    Directory of Open Access Journals (Sweden)

    Andries Visagie

    2012-12-01

    Full Text Available The socialist sympathies that inform the writing of Flemish author Walter van den Broeck align him with a well-established tradition of socially engaged writing in Flanders. In his novel Terug naar Walden (Back to Walden, published in 2009, he revisits the Walden project of the Dutch reformer and writer Frederik van Eeden (1860−1932. Van den Broeck suggests that a reconsideration of the socialist ideals that inspired Van Eeden to establish settlements in the Netherlands and the United States is warranted in the light of the economic crisis triggered by unchecked capitalist practices in 2008. In Terug naar Walden Ruler Marsh, the richest man in the world, unleashes a global financial crisis as a form of retaliation against the capitalist system that ruined his parents. Marsh returns to the Kempen in Flanders where his family originated. In a Heideggerean affirmation of the local as exemplified by the country road, Van den Broeck articulates his vision of the common, that theorists Michael Hardt and Antonio Negri in their Empire trilogy have attempted to salvage from communist thinking, with a utopian notion that a stronger connection with the land and the people within one’s immediate environment may provide a useful premise for the development of viable alternatives to capitalism.

  2. Successful Ultra-Conservative Management of a Mandibular Premolar with Dens Invaginatus.

    Science.gov (United States)

    Abazarpour, Ramin; Parirokh, Masoud; Farhadi, Aida; Jalali, Zahra; Kheirabadi, Nasir

    2017-01-01

    Dens invaginatus is one of the most common anomalies of tooth structure. It is caused by the invagination of the crown surface during odontogenesis that enters the pulp chamber of the affected tooth. Depending on the complexity of invagination, the tooth might present with pulp necrosis, open apex and a complicated root canal system. This case report presents an Oehlers' type 2 dens-invaginatus in a mandibular premolar with chronic apical abscess. In most cases, dens invaginatus is removed during treatment. However, in this case report, based on cone-beam computed tomography (CBCT) evaluation, non-surgical treatment and maintenance of the invaginated segment was chosen in order to prevent compromising the tooth structure and its susceptibility to future root fracture. This is a new treatment approach and has not been performed in previous reports. Calcium-enriched mixture (CEM) cement was used as an apical plug followed by gutta-percha in warm vertical compaction for root canal obturation. The case was followed up for 36 months after treatment. This report highlights the importance of selecting the appropriate treatment approach based on CBCT evaluation.

  3. DENS INVAGINATUS BILATERAL EM PRIMEIRO MOLAR MANDIBULAR EM CÃO

    Directory of Open Access Journals (Sweden)

    Floriano Pinheiro Silva

    2006-10-01

    Full Text Available Atendeu-se a uma cadela da raça maltês, de quatro anos de idade, com queixa de mau hálito e presença de tártaros. À anamnese relatou-se que o animal havia sido submetida anteriormente a três procedimentos de tratamento periodontal, sempre sem a necessidade de anestesia. Submetida à anestesia geral, a cadela foi clinicamente examinada, evidenciando-se a presença de lesão degenerativa na face vestibular dos primeiros molares mandibulares esquerdo e direito, que após exame radiológico diagnosticou-se como Dens invaginatus. Observou-se alteração da morfologia dentária dos dentes envolvidos, evidenciada radiograficamente como áreas radiopacas, demonstrando alteração da morfologia do canal em ambos os elementos e reabsorção da raiz distal do primeiro pré-molar inferior direito. PALAVRAS-CHAVE: Dens invaginatus, dens in dente, exodontia.

  4. 18-year follow-up of dens invaginatus: retrograde endodontic treatment.

    Science.gov (United States)

    Wayama, Marcelo Tadahiro; Valentim, Diego; Gomes-Filho, João Eduardo; Cintra, Luciano Tavares Angelo; Dezan, Eloi

    2014-10-01

    Dens invaginatus is a rare developmental anomaly that occurs during odontogenesis, with a higher prevalence in the Caucasian race and no significant sex predilection; it can be bilateral. This anomaly occurs in approximately 1.26% of the teeth, and the maxillary lateral incisor is most often affected. This case report describes a female patient with dens invaginatus in the maxillary right conoid lateral incisor. The patient presented to Araçatuba School of Dentistry, Universidade Estadual Paulista, São Paulo, Brazil, in 1995 with an acute periapical abscess in the palatal region of the tooth in question. After access preparation, the pulp in the main root canal was found to be vital and not associated with the abscess; therefore, surgical drainage of the abscess and root canal treatment of the main canal were performed. Surgical complementation was also performed to eliminate the infectious focus, which involved retrograde endodontic treatment of the dens invaginatus being obturated with Sealapex (Sybron Dental Specialties, Glendora, CA) and Ultrafil (Coltène/Whaledent AG, Altstätten, Switzerland). Radiographic assessments were completed periodically to verify healing. After 18 years, the patient returned to Araçatuba School of Dentistry, presenting crown fracture of the tooth in question. Radiographic examination showed repair and favorable conditions for tooth maintenance, so a post and porcelain core were made. The treatment was successful, achieving adequate repair with 18 years of follow-up. Copyright © 2014 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.

  5. Different marketing strategies for the international coal market; Differenzierte Marketingstrategien fuer den Weltsteinkohlenmarkt

    Energy Technology Data Exchange (ETDEWEB)

    Kretschmann, J. [Deutsche Steinkohle AG, Herne (Germany). Abt. Betriebswirtschaftliche Grundsatzfragen]|[Technische Hochschule Aachen (Germany). Fakultaet fuer Bergbau, Huettenwesen und Geowissenschaften

    1999-04-08

    To remain internationally competitive company managements in the German coal mining industry must effectively use market opportunities on foreign coal markets. It is shown below that there can be no uniform, globally successful marketing strategy for the international coal market. Instead different marketing strategies specific to the countries should be implemented for commitments in the individual coal-producing countries. Such marketing strategies should be based on situation analyses of the individual coal-producing countries, which should be supplemented by opportunity/risk analyses. The systematology introduced for this purpose in based on the model of the product life cycle. The description concentrates on the coalproducing sector. (orig.) [Deutsch] Prognosen renommierter Institutionen lassen erwarten, dass die Steinkohlenbranche weltweit in den naechsten Jahrzehnten noch Wachstumspotentiale besitzt. Durch Nutzung dieser Potentiale im Zug einer Internationalisierung kann die deutsche Steinkohlenbranche schrumpfende Inlandsproduktion ersetzen. Im vorliegenden Beitrag wird gezeigt, dass es hierfuer keinen Koenigsweg einer einheitlichen, global erfolgreichen Marketingstrategie fuer den Weltsteinkohlenmarkt geben kann. Statt dessen sind laenderspezifisch differenziert gestaltete Marketingstrategien fuer Engagements in den einzelnen Kohlelaendern umzusetzen. Solche Marketingstrategien sollten auf Situationsanalysen der einzelnen Kohlelaender beruhen, die durch Chancen-/Risikenanalysen zu ergaenzen sind. Die hierzu vorgestellte Systematik beruht auf dem Modell des Produktlebenszyklus. Im Mittelpunkt der Darstellung steht der steinkohlenproduzierende Bereich. Basis fuer internationale Engagements sind vorhandene Kernkompetenzen. Zur erfolgreichen Realisierung solcher Strategien scheint die Organisationsform der Netzwerk-Organisation zweckmaessig zu sein. (orig.)

  6. Basic regulatory policy requirements for a liberalised natural gas market; Ordnungspolitische Grunderfordernisse fuer den liberalisierten Gasmarkt

    Energy Technology Data Exchange (ETDEWEB)

    Geisel, K.H. [BEB Erdgas und Erdoel GmbH, Hannover (Germany)

    1997-08-01

    Whether worldwide, on the European Continent, or at national level, natural gas is coming to the front everywhere. In Latin America or South-East Asia, the natural gas industry is booming. However, the regional constraints of natural gas should not be forgotten. ``et`` interviewed a representative of the BEB company about the prospects of the natural business at large and the primary energy source no. 2 in the German energy market, where natural gas ranks second after mineral oil. The topics reported refer to basic regulatory policy requirements in order to safeguard a smooth functioning of the gas market, as well as suitable environmental policy instruments and strategies for management re-orientation to cope with the expected changes in the competitive situation. (Orig.) [Deutsch] Ob weltweit, kontinentaleuropaeisch oder national betrachtet - das Erdgas ist dort wie hier auf dem Vormarsch. In Lateinamerika und Suedostasien kann man regelrecht von einem Erdgasboom sprechen. Allerdings sollte man die regionale Gebundenheit der Erdgasnutzung nicht aus den Augen verlieren. `et` sprach mit dem `Unternehmen Erdgas` BEB ueber die Perspektiven des - nach dem Mineraloel - Primaerenergietraegers Nr. 2 auf dem deutschen Markt. Neben der Auslotung von ordnungspolitischen Grunderfordernissen fuer einen funktionierenden Gasmarkt und geeigneten Instrumenten fuer den Umweltschutz geht es um die Strategien fuer eine unternehmerische Neuausrichtung fuer den verschaerften Wettbewerb. (orig.)

  7. Untersuchung perturbativer und nichtperturbativer Struktur der Momente hadronischer Ereignisformvariablen mit den Experimenten JADE und OPAL

    CERN Document Server

    Pahl, Christoph Johannes

    2007-01-01

    In Hadronproduktionsdaten der e+e− - Vernichtungsexperimente JADE und OPAL messen wir die ersten f¨unf Momente von zw¨olf hadronischen Ereignisformvariablen bei Schwerpunktsenergien von 14 bis 207GeV. Aus dem Vergleich der QCD NLO-Vorhersage mit den mittels MC-Modellen um Hadronisierung korrigierten Daten erhalten wir den Referenzwert der starken Kopplung αs(MZ0) = 0.1254 ± 0.0007(stat.) ± 0.0010(exp.)+0.0009 −0.0023(had.)+0.0069 −0.0053(theo.) . F¨ur einige, insbesondere h¨ohere, Momente sind systematische Unzul¨anglichkeiten in der QCD NLO-Vorhersage erkenntlich. Simultane Fits an zwei Momente unter Annahme identischer Renormierungsskalen ergeben Skalenwerte von xμ=0.057 bis xμ=0.196 . Wir pr¨ufen Vorhersagen verschiedener nichtperturbativer Modelle. Aus der Single Dressed Gluon - N¨aherung ergibt sich eine perturbative Vorhersage in O(α5 s ) mit zu vernachl¨assigender Energiepotenzkorrektur, die den Mittelwert von Thrust auf Hadronniveau gut beschreibt mit αs(MZ0) = 0.1186 ± 0.0007(st...

  8. Langfristiger Speicherbedarf unter Berücksichtigung der Interaktion zwischen den Sektoren Strom-Wärme-Verkehr

    OpenAIRE

    Gerhardt, N.; Pape, C.; Scholz, A.; Sandau, F.; Schwinn, R.; Härtel, P.

    2014-01-01

    Der langfristige Strom-Speicherbedarf wird ganz entscheidend von den klimapolitischen Zielsetzungen und der Wirkung neuer Stromverbraucher in den Energiesektoren Wärme und Verkehr bestimmt. Bei Szenarioberechnungen mit vorwiegendem Fokus auf dem Stromsektor zeigt sich insbesondere ein Flexibilitätsbedarf im Kurzzeitbereich. Wie die Ergebnisse einer optimierten europäischen Ausbauplanung zeigen, können hier Batteriespeicher je nach EE-Mix und alternativen Flexibilitätsoptionen ökonomische Vort...

  9. Ampfer im Grünland erfolgreich kontrollieren - Ein praktischer Leitfaden für den ökologischen Landbau

    OpenAIRE

    Bundesforschungsanstalt für Landwirtschaft, FAL

    2004-01-01

    Insbesondere die großblättrigen Ampfer-Arten Stumpfblättriger Ampfer (Rumex obtusifolius L.) und Krauser Ampfer (Rumex crispus L.) sind als lästiges Unkraut im Grünland bekannt. Durch ihren Blattreichtum verdrängen sie die Futtergräser, besitzen jedoch selbst einen sehr geringen Futterwert. Gemindert wird die Futterqualität durch den niedrigen Energeigehalt bzw. Zuckergehalt und den relativ hohen Gehalt an Oxalsäure.

  10. A retrospective study of the prevalence and characteristics of dens invaginatus in a sample of the Turkish population

    OpenAIRE

    G?nd?z, Kaan; ?elenk, Peruze; Canger, Emin M.; Zengin, Zeynep; S?mer, P?nar

    2012-01-01

    Objective: The purpose of this study was to assess the prevalence of dens invaginatus and to classify the types of dens invaginatus in a sample of the Turkish population.. Study Design: A retrospective study was performed using periapical and panoramic radiographs of 5355 patients who presented to the Department of Oral Diagnosis and Radiology at the Ondokuz May?s University Dentistry Faculty between January 2009 and December 2010. Maxillary and mandibular anterior teeth were evaluated for th...

  11. Combined Surgical and Nonsurgical Endodontic Therapy in the Treatment of Dens Invaginatus Type 3: A Case Report

    Science.gov (United States)

    Marwah, Nikhil; Goenka, Puneet; Nigam, Anant Gopal; GS, Prathima

    2009-01-01

    An accurate understanding of the morphology of the root canal system is a prerequisite for successful root canal treatment. Invaginated teeth have a complex root canal configuration that cannot be instrumented effectively. Correct diagnosis and treatment planning are fundamental to treatment of dens invaginatus. Periapical surgery is indicated in cases where a nonsurgical approach fails. A case of dens invaginatus type 3 in a maxillary lateral incisor with a periapical lesion and its successful treatment by these combined methods is reported. PMID:25206122

  12. Catalogue of polar bear (Ursus maritimus) maternal den locations in the Beaufort Sea and neighboring regions, Alaska, 1910-2010

    Science.gov (United States)

    Durner, George M.; Fischbach, Anthony S.; Amstrup, Steven C.; Douglas, David C.

    2010-01-01

    This report presents data on the approximate locations and methods of discovery of 392 polar bear (Ursus maritimus) maternal dens found in the Beaufort Sea and neighboring regions between 1910 and 2010 that are archived by the U.S. Geological Survey, Alaska Science Center, Anchorage, Alaska. A description of data collection methods, biases associated with collection method, primary time periods, and spatial resolution are provided. Polar bears in the Beaufort Sea and nearby regions den on both the sea ice and on land. Standardized VHF surveys and satellite radio telemetry data provide a general understanding of where polar bears have denned in this region over the past 3 decades. Den observations made during other research activities and anecdotal reports from other government agencies, coastal residents, and industry personnel also are reported. Data on past polar bear maternal den locations are provided to inform the public and to provide information for natural resource agencies in planning activities to avoid or minimize interference with polar bear maternity dens.

  13. Thiamine potentiates chemoprotective effects of ibuprofen in DEN induced hepatic cancer via alteration of oxidative stress and inflammatory mechanism.

    Science.gov (United States)

    Afzal, Muhammad; Kazmi, Imran; Khan, Ruqaiyah; Rana, Poonam; Kumar, Vikas; Al-Abbasi, Fahad A; Zamzami, Mazin A; Anwar, Firoz

    2017-06-01

    Present study, was an effort to scrutinize the molecular and biochemical role of ibuprofen and thiamine combination in diethylnitrosamine (DEN)-induced HCC in Wistar rats. Single intraperitoneal injection of DEN (200 mg/kg) was used for induction of HCC in rats. The rats were divided into eight various groups. DEN induced rats were treated with pure ibuprofen (40 mg/kg) and thiamine in combination for the period of 12th weeks. The protocol was terminated after the 16th week. Exposure of DEN up-regulated the levels of different serum biochemical parameters, antioxidant enzyme level, Alfa-fetoprotein (AFP) and reduced the level of High density lipoprotein (HDL) in Wistar rats along with the alteration in pro-inflammatory cytokines viz., interlukin-6 (IL-6), Tumor necrosis factor (TNF-α) and Interleukin-1β (IL-1β) with decrease in body weight. Macroscopic evaluation, revealed DEN group rats confirmed the expansion of hepatic nodules, which were reduced by the individual treatment of ibuprofen and thiamine, but the synergistic treatment of ibuprofen and thiamine confirm the significant reduction of hepatic nodules. Further, this combination possesses the significant chemoprotective effect in DEN-induced HCC by restoring the hepatic enzymes and other biomarkers along with an alteration in pro-inflammatory cytokines. The above result concludes that ibuprofen and thiamine combination possess potent anti-cancerous activity. Copyright © 2017 Elsevier Inc. All rights reserved.

  14. Detailhandel på museum. Om arbejdet med Den Gamle Bys butikker og gademiljø.

    Directory of Open Access Journals (Sweden)

    Berit Guldmann Andersen

    2013-11-01

    Full Text Available I 2002 besluttede Den Gamle By at fortælle 1900-tallets Danmarkshistorie ved at udvide museet med to nye bykvarterer – et 1927-kvarter og et 1974-kvarter. Indtil da havde museet i al væsentlighed arbejdet med 16-, 17- og 1800-tallets historie, og der forestod (og forestår derfor et stort arbejde med vidensopsamling og -generering i form af forskning og undersøgelser om den moderne bys udseende. Da detailhandelen er en meget synlig nyskabelse i den moderne by i forhold til de perioder, museet allerede præsenterer, var behovet for viden på ikke mindst dette område af stor betydning. I artiklen giver vi et overblik over 1900-tallets butiksudvikling i Danmark, og vi gør rede for de undersøgelser, der er gået forud for etableringen af butikkerne i Den Gamle Bys nye bykvarterer.AbstractIn connection with the development of two new town districts – for 1927 and 1974 respectively – at the open-air museum, Den Gamle By (”The Old Town”  in Århus, its staff undertook a number of studies, one of which concerned the history of  retail trade in Denmark.Retail trade is an important factor in the formation of the modern urban streetscape. Urbanisation and industrialisation prompted an increase in shops from the mid-19th century onwards. By the end of World War 1, retailing had developed from merchant’s houses offering a wide assortment of goods, to strictly specialised shops.In tandem with this development, the visual appearance of the shops in the streetscape changed: from being next to invisible, marked only by a discrete sign on the wall around 1850, to the almost obtrusively large window sections, glossy advertisements and rich illumination of the interwar shop fronts.The retail trade continued to develop significantly in the 20th century: from relatively small establishments of independent grocers, greengrocers, butchers and bakers to large supermarkets offering all such goods under one roof. Consequently, food shops were largely

  15. Detailhandel på museum. Om arbejdet med Den Gamle Bys butikker og gademiljø.

    Directory of Open Access Journals (Sweden)

    Berit Guldmann Andersen

    2013-11-01

    Full Text Available I 2002 besluttede Den Gamle By at fortælle 1900-tallets Danmarkshistorie ved at udvide museet med to nye bykvarterer – et 1927-kvarter og et 1974-kvarter. Indtil da havde museet i al væsentlighed arbejdet med 16-, 17- og 1800-tallets historie, og der forestod (og forestår derfor et stort arbejde med vidensopsamling og -generering i form af forskning og undersøgelser om den moderne bys udseende. Da detailhandelen er en meget synlig nyskabelse i den moderne by i forhold til de perioder, museet allerede præsenterer, var behovet for viden på ikke mindst dette område af stor betydning. I artiklen giver vi et overblik over 1900-tallets butiksudvikling i Danmark, og vi gør rede for de undersøgelser, der er gået forud for etableringen af butikkerne i Den Gamle Bys nye bykvarterer. Abstract In connection with the development of two new town districts – for 1927 and 1974 respectively – at the open-air museum, Den Gamle By (”The Old Town”  in Århus, its staff undertook a number of studies, one of which concerned the history of  retail trade in Denmark. Retail trade is an important factor in the formation of the modern urban streetscape. Urbanisation and industrialisation prompted an increase in shops from the mid-19th century onwards. By the end of World War 1, retailing had developed from merchant’s houses offering a wide assortment of goods, to strictly specialised shops. In tandem with this development, the visual appearance of the shops in the streetscape changed: from being next to invisible, marked only by a discrete sign on the wall around 1850, to the almost obtrusively large window sections, glossy advertisements and rich illumination of the interwar shop fronts. The retail trade continued to develop significantly in the 20th century: from relatively small establishments of independent grocers, greengrocers, butchers and bakers to large supermarkets offering all such goods under one roof. Consequently, food shops were

  16. Vilken väg tar den kritiska granskningen? Studenter i samtal om en vetenskaplig artikel

    Directory of Open Access Journals (Sweden)

    Lotta Bergman

    2014-01-01

    Full Text Available För många studenter har det visat sig vara svårt att tillägna sig det språk som används i högre utbildning (Lea & Street, 1998; Hoel Løkensgard, 2010. Hindren för studenten kan bli så stora att de får svårt att genomföra sina studier. En viktig uppgift men också en stor utmaning för högskolans lärare är att stödja studenter i deras språkutveckling så att fler får möjlighet att fullfölja sin akademiska utbildning. Den här artikeln bygger på en kvalitativ undersökning av hur studenter vid ett tillfälle samtalar om en vetenskaplig artikel som ingår i deras utbildning. Vårt syfte är att diskutera vilka möjligheter innehållet i studenternas samtal ger för att utveckla deras förståelse av den vetenskapliga texten och dess kontext. I analysen framstår tre teman som avgörande för vad samtalen kom att handla om: studenternas syn på artikelns användbarhet, deras syn på artikelns tillförlitlighet samt deras attityder till den. Undersökningens resultat understryker lärarens viktiga roll i textsamtalen och pekar bland annat på att studenter behöver utveckla såväl diskursmedvetenhet som kunskap om de villkor som omger forskare och deras skrivande för att förstå och kritiskt kunna granska en vetenskaplig artikel.

  17. Urologie zwischen Tradition und Innovation - Blasenkarzinom: Was haben wir in den letzten 10 Jahren gelernt?

    Directory of Open Access Journals (Sweden)

    Danuser H

    2009-01-01

    Full Text Available In den letzen 10 Jahren sind sowohl in der Diagnostik als auch in der Therapie des Blasenkarzinoms Fortschritte erzielt worden. In der Diagnostik sind mit den Tumormarkern, beispielsweise NMP22 und UroVysion Instrumente implementiert worden, die sensitiver sind als die Urinzytologie und somit als Alternative und ergänzende Untersuchungen zur Zystoskopie betrachtet werden können. Die Fluoreszenzzystoskopie kann rund 20 % mehr Tumoren entdecken als die Weisslichtzystoskopie, es kommt nach TUR-B zu rund 20 % weniger Resttumoren und auch ca. 20 % weniger Rezidiven im Langzeitverlauf. Als Rezidivprophylaxe kann bei Low-grade-Tumoren eine einmalige Instillation eines Chemotherapeutikums unmittelbar nach TUR-B empfohlen werden und bei High-risk-Tumoren ein BCG-Instillationszyklus. Bei Versagen der BCG-Therapie muss die Zystektomie erwogen werden. Im Rahmen der Zystektomie soll die ausgedehnte pelvine Lymphadenektomie durchgeführt werden; der therapeutische Nutzen ist suggestiv, aber nicht bewiesen. Mittels Nerve-sparing-Technik kann, sofern durchführbar, die Kontinenz nach orthotopem Blasenersatz schneller und in einem leicht höheren Prozentsatz erreicht werden und der Erhalt der erektilen Potenz ist möglich. Die kontinenten Harnableitungen mittels orthotopem Blasenersatz oder katheterisierbarem Pouch haben sich etabliert. Dabei ist der Reflux in den oberen Harntrakt beim orthotopen Blasenersatz unerheblich; die Langzeitresultate in Bezug auf Erhaltung der Nierenfunktion sind bei offener Anastomose exzellent. Deshalb kann auf eine antirefluxive Implantation der Harnleiter wegen höherer Strikturierungsrate zugunsten einer offenen Anastomose verzichtet werden. Laparoskopische und roboterassistierte Zystektomien sind machbar, aber im Moment spezialisierten Zentren vorbehalten. Die Chemotherapie, aktuell meist mit Gemcitabin und Cisplatin durchgeführt, hat ihren Platz beim fortgeschrittenen Blasenkarzinom. Im Rahmen einer neoadjuvanten Indikation

  18. Nystartede sygeplejestuderendes forestillinger om god sygepleje og den gode sygeplejerskers evner

    DEFF Research Database (Denmark)

    Lyngsø, Anita

    stilladsbaseret læring. De kvalitative interviews med fire nystartede sygeplejestuderende, bliver analyseret ud fra Ian Deys kvalitative analysemetode. Analysen viser, at de studerendes forestillinger om god sygepleje er at varetage patientens tarv, hvor sygeplejersken er mellemleddet, hvilket vil sige, at hun...... studerendes forestillinger om den gode sygeplejerskes evner er, at det er ikke bare et job – det er noget man er. Disse evner kan inddeles i to kategorier, nemlig at være medmenneskelig og at være en autoritet. Analysen viser desuden, at kategorierne at være medmenneskelig og have faglig viden er de centrale...

  19. Auswahl aus den Reden des Präsidenten Gamal Abdel Nasser

    OpenAIRE

    Paul Kuntizsch

    2014-01-01

    Wir haben im folgenden einige Worte des Präsidenten Gamal Abdel Nasser bei verschiedenen Anlässen ausgewählt und in die verschiedenen lebenden Sprachen übertragen, die an unserer Schule gelehrt werden. Wir möchten damit der östlichen und westlichen Welt ein lebendiges Bild vermitteln, vom Kampf des arabischen Volkes für seine Freiheit und den Aufbau einer gesunden, demokratischen, sozialistischen, genossenschaftlichen, Gesellschaft. Das Ausland möge daraus das Wesen des arabischen Nationalism...

  20. Lärares yrkesetiska dilemman och den ökande juridifieringen i Sverige

    Directory of Open Access Journals (Sweden)

    Gunnel Colnerud

    2014-11-01

    Full Text Available Följande artikel under temat “Etikbølgen i yrkesutdanning og praksis” beskriver och diskuterar etik och juridik i läraryrket med utgångspunkt i det dilemma som lärare själva anser vara ett av de svåraste enligt två svenska empiriska studier – att ingripa mot en kollega som handlar etiskt klandervärt mot elever. Artikeln diskuterar vidare den dygdetiska kritik mot regeletik som förekom vid tillkomsten av de etiska principerna. Vidare pekar den på de problem som följer av att lärarna är föremål för en tilltagande juridifiering. En våg, en bølge, kan beröra endast ytan som en krusning eller vara en djupgående och energirik rörelse. För att använda den aktuella metaforen på mitt studieobjekt skulle jag vilja påstå att diskussionen av lärares yrkesetik och medvetenheten om svenska lärares etiska riktlinjer utvecklades till en våg av endast blygsam storlek. I dagsläget (2014 har den ersatts av en juridisk våg med stor kraft.Nyckelord: etik i läraryrket, etiska dilemman, juridifiering av lärarpraktikenEnglish summary: Teachers’ ethical dilemmas and the juridification of the Swedish schoolIn this article, ethics and law in the teaching profession are described and discussed, starting with the ethical dilemma that teachers point to as the most difficult, according to referred empirical studies – intervention when a colleague acts in an ethically incorrect way towards students. Furthermore the author discusses the critique coming from virtue ethics in relation to ethical principles and shows that even Aristotle suggests ethical principles under certain circumstances. Swedish teachers’ ethical principles had very little time to be achieved before an increasing juridification of teaching took place. This phenomenon is discussed in terms of professional autonomy and professional judgement.http://dx.doi.org/10.5324/eip.v8i2.1856