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  • 401.
    Alkrot, Magnus
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Information and Communication systems.
    React vs Angular: Slaget om användarupplevelsen2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Lately, various programming frameworks has been developed for developing web applications. These frameworks focus on increasing the user experience by performance improvements such as faster render times and response times. One of these frameworks are React, which has introduced a completely new architectural pattern for both managing the state and data flow of an application. React also offers support for native application development and makes server-side rendering possible. Something that is difficult to accomplish with an application developed with Angular 1.5, which is used by the company Dewire today. The aim of this thesis was to compare React with an existing Angular project, in order to determine whether React could be a potential replacement for Angular. To gain knowledge about the subject, a theoretical study of web- based sources has been made. While the practical part has been to rebuild a web application with React together with the architecture Flux, which is based on a view from the Angular project. The implementation process was repeated until the view was completed and a desired data flow, as in the Angular application, was reached. The resulting React application was later compared with the Angular application developed by the company, where the outcome of the comparison showed that the React performed better than Angular in all tests. In conclusion, due to the timeframe of the project, only the most important parts of the Angular project were implemented in order to carry out the measurements that were of interest to the company. By recreating most of the functionality, or the entire Angular application, more interesting comparisons could have been done.

  • 402.
    Allahgholi, A.
    et al.
    DESY, D-22607 Hamburg, Germany.
    Becker, J.
    DESY, D-22607 Hamburg, Germany.
    Bianco, L.
    DESY, D-22607 Hamburg, Germany.
    Bradford, R.
    Adv Photon Source, Chicago, IL USA.
    Delfs, A.
    DESY, D-22607 Hamburg, Germany.
    Dinapoli, R.
    Paul Scherrer Inst, OFLB-006, CH-5232 Villigen, Switzerland.
    Goettlicher, P.
    DESY, D-22607 Hamburg, Germany.
    Gronewald, M.
    Univ Bonn, D-53115 Bonn, Germany.
    Graafsma, Heinz
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design. DESY, D-22607 Hamburg, Germany.
    Greiffenberg, D.
    Paul Scherrer Inst, OFLB-006, CH-5232 Villigen, Switzerland.
    Henrich, B. H.
    Paul Scherrer Inst, OFLB-006, CH-5232 Villigen, Switzerland.
    Hirsemann, H.
    DESY, D-22607 Hamburg, Germany.
    Jack, S.
    DESY, D-22607 Hamburg, Germany.
    Klanner, R.
    Univ Hamburg, D-22761 Hamburg, Germany.
    Klyuev, A.
    DESY, D-22607 Hamburg, Germany.
    Krueger, H.
    Univ Bonn, D-53115 Bonn, Germany.
    Lange, S.
    DESY, D-22607 Hamburg, Germany.
    Marras, A.
    DESY, D-22607 Hamburg, Germany.
    Mezza, D.
    Paul Scherrer Inst, OFLB-006, CH-5232 Villigen, Switzerland.
    Mozzanica, A.
    Paul Scherrer Inst, OFLB-006, CH-5232 Villigen, Switzerland.
    Perova, I.
    DESY, D-22607 Hamburg, Germany.
    Xia, Q.
    DESY, D-22607 Hamburg, Germany.
    Schmitt, B.
    Paul Scherrer Inst, OFLB-006, CH-5232 Villigen, Switzerland.
    Schwandt, J.
    Univ Hamburg, D-22761 Hamburg, Germany.
    Sheviakov, I.
    DESY, D-22607 Hamburg, Germany.
    Shi, X.
    Paul Scherrer Inst, OFLB-006, CH-5232 Villigen, Switzerland.
    Trunk, U.
    DESY, D-22607 Hamburg, Germany.
    Zhang, J.
    DESY, D-22607 Hamburg, Germany.
    The adaptive gain integrating pixel detector2016In: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 11, no 2, article id C02066Article in journal (Refereed)
    Abstract [en]

    The adaptive gain integrating pixel detector (AGIPD) is a development of a collaboration between Deustsches Elektronen-Synchrotron (DESY), the Paul-Scherrer-Institute (PSI), the University of Hamburg and the University of Bonn. The detector is designed to cope with the demanding challenges of the European XFEL. Therefore it comes along with an adaptive gain stage allowing a high dynamic range, spanning from single photon sensitivity to 10(4) x 12.4 keV photons and 352 analogue memory cells per pixel. The aim of this report is to briefly explain the concepts of the AGIPD electronics and mechanics and then present recent experiments demonstrating the functionality of its key features.

  • 403.
    Allahgholi, A.
    et al.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Becker, J.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany; Cornell University, Ithaca, NY, United States .
    Bianco, L.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Delfs, A.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Arino-Estrada, G.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Gottlicher, P.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Graafsma, Heinz
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design. Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Hirsemann, H.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Jack, S.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Klyuev, A.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Lange, S.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Marras, A.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Poehlsen, J.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Sheviakov, I.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Trunk, U.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Xia, Q.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Zhang, J.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Zimmer, M.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany.
    Dinapoli, R.
    PSI, Villigen, Switzerland.
    Greiffenberg, D.
    PSI, Villigen, Switzerland.
    Mezza, D.
    PSI, Villigen, Switzerland.
    Mozzanica, A.
    PSI, Villigen, Switzerland.
    Schmitt, B.
    PSI, Villigen, Switzerland.
    Shi, X.
    PSI, Villigen, Switzerland.
    Klanner, R.
    University of Hamburg, Germany.
    Schwandt, J.
    University of Hamburg, Germany.
    Kruger, H.
    University of Bonn, Germany.
    Rah, S.
    Pohang Accelerator Laboratory, Pohang, South Korea.
    The AGIPD 1.0 ASIC: Random access high frame rate, high dynamic range X-ray camera readout for the European XFEL2015In: 2015 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2015, Institute of Electrical and Electronics Engineers (IEEE), 2015, article id 7581819Conference paper (Refereed)
    Abstract [en]

    The European XFEL is an extremely brilliant Free Electron Laser Source with a very demanding pulse structure: trains of 2700 X-Ray pulses are repeated at 10 Hz. The pulses inside the train are spaced by 220 ns and each one contains up to 1012 photons of 12.4 keV, while being ≤ 100 fs in length. AGIPD (Adaptive Gain Integrating Pixel Detector) is a hybrid 1M-pixel detector developed by DESY, PSI, and the Universities of Bonn and Hamburg to cope with these properties. Thus the readout ASIC has to provide not only single photon sensitivity and a dynamic range ≳ 104 photons/pixel in the same image but also a memory for as many images of a pulse train as possible for delayed readout prior to the next train. The AGIPD 1.0 ASIC uses a 130 nm CMOS technology and radiation tolerant techniques to withstand the radiation damage incurred by the high impinging photon flux. Each ASIC contains 64 × 64 pixels of 200μmχ200μm. The circuit of each pixel contains a charge sensitive preamplifier with threefold switchable gain, a discriminator for an adaptive gain selection, and a correlated double sampling (CDS) stage to remove reset and low-frequency noise components. The output of the CDS, as well as the dynamically selected gain is sampled in a capacitor-based analogue memory for 352 samples, which occupies about 80% of a pixels area. For readout each pixel features a charge sensitive buffer. A control circuit with a command based interface provides random access to the memory and controls the row-wise readout of the data via multiplexers to four differential analogue ports. The AGIPD 1.0 full scale ASIC has been received back from the foundry in fall of 2013. Since then it has been extensively characterised also with a sensor as a single chip and in 2 × 8-chip modules for the AGIPD 1 Mpix detector. We present the design of the AGIPD 1.0 ASIC along with supporting results, also from beam tests at PETRA III and APS, and show changes incorporated in the recently taped out AGIPD 1.1 ASIC upgrade.

  • 404.
    Allahgholi, A.
    et al.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Becker, J.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Bianco, L.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Delfs, A.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Dinapoli, R.
    Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
    Arino-Estrada, G.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Goettlicher, P.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Graafsma, Heinz
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design. Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Greiffenberg, D.
    Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
    Hirsemann, H.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Jack, S.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Klanner, R.
    Univ Hamburg, Mittelweg 177, D-20148 Hamburg, Germany.
    Klyuev, A.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Krueger, H.
    Univ Bonn, D-53012 Bonn, Germany.
    Lange, S.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Marras, A.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Mezza, D.
    Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
    Mozzanica, A.
    Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
    Poehlsen, J.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Rah, S.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Xia, Q.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Schmitt, B.
    Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
    Schwandt, J.
    Univ Hamburg, Mittelweg 177, D-20148 Hamburg, Germany.
    Sheviakov, I.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Shi, X.
    Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
    Smoljanin, S.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Trunk, U.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Zhang, J.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Zimmer, M.
    Deutsch Elekt Synchrotron DESY, Notkestr 85, D-22607 Hamburg, Germany.
    Front end ASIC for AGIPD, a high dynamic range fast detector for the European XFEL2016In: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 11, no 1, article id C01057Article in journal (Refereed)
    Abstract [en]

    The Adaptive Gain Integrating Pixel Detector (AGIPD) is a hybrid pixel X-ray detector for the European-XFEL. One of the detector's important parts is the radiation tolerant front end ASIC fulfilling the European-XFEL requirements: high dynamic range-from sensitivity to single 12.5keV-photons up to 104 photons. It is implemented using the dynamic gain switching technique with three possible gains of the charge sensitive preamplifier. Each pixel can store up to 352 images in memory operated in random-access mode at >= 4.5MHz frame rate. An external vetoing may be applied to overwrite unwanted frames.

  • 405.
    Allahgholi, A.
    et al.
    Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    Becker, J.
    Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    Bianco, L.
    Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    Delfs, A.
    Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    Dinapoli, R.
    Paul-Scherrer-Institut PSI, Villigen, Switzerland.
    Fretwurst, E.
    University of Bonn, Bonn, Germany.
    Göttlicher, P.
    University of Hamburg, Hamburg, Germany.
    Graafsma, Heinz
    Mid Sweden University, Faculty of Science, Technology and Media. Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    Greiffenberg, D.
    Paul-Scherrer-Institut PSI, Villigen, Switzerland.
    Gronewald, M.
    University of Bonn, Bonn, Germany.
    Hirsemann, H.
    Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    Jack, S.
    Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    Klanner, R.
    University of Bonn, Bonn, Germany.
    Klyuev, A.
    Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    Krüger, H.
    University of Bonn, Bonn, Germany.
    Marras, A.
    Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    Mezza, D.
    Paul-Scherrer-Institut PSI, Villigen, Switzerland.
    Mozzanica, A.
    Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    Schmitt, B.
    Paul-Scherrer-Institut PSI, Villigen, Switzerland.
    Schwandt, J.
    Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    Sheviakov, I.
    Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    Shi, X.
    Paul-Scherrer-Institut PSI, Villigen, Switzerland.
    Xia, Q.
    Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    Zhang, J.
    Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    Zimmer, M.
    Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany.
    AGIPD, the electronics for a high speed X-ray imager at the Eu-XFEL2014In: Proceedings of Science, Proceedings of Science (PoS) , 2014, article id 253Conference paper (Refereed)
    Abstract [en]

    The AGIPD (Adaptive Gain Integrated Pixel Detector) X-ray imaging camera will be operated at the X-ray Free Electron Laser, Eu-XFEL, under construction in Hamburg, Germany. Key parameters are 1 million 200 μm square pixels, single 12.4 keV photon detection and a dynamic range to 10 000/pixel/image. The developed sensors, ASICs, PCB-electronics and FPGA firmware acquire individual images per bunch at 27 000 bunches/s, packed into 10 bunch-trains/s with a bunch separation of 222 ns. Bunch-trains are handled by 352 analogue storage cells within each pixel of the ASIC and written during the 0.6msec train delivery. Therefore AGIPD can store 3520 images/s from the delivered 27 000 bunches/s. Random addressing provides reusability of each cell after an image has been declared as low-quality, so that good images can be selected. Digitization is performed between trains (99.4 msec). In the paper all functional blocks are introduced. The details concentrate on the DAQ-chain PCB-electronics and the slow control. A dense area of 1024 ADC-channels, each with a pickup-noise filtering and sampling of up to 50 MS/s/ADC and a serial output of 700 Mbit/s/ADC. FPGAs operate the ASICs synchronized to the bunch structure and collect the bit streams from 64 ADCs/FPGA. Pre-sorted data is transmitted on 10 GbE links out of the camera head using the time between trains. The control and monitoring of the camera with 600 A current consumption is based on a micro-controller and I2C bus with an addressing architecture allowing many devices and identical modules. The high currents require planned return paths at the system level. First experimental experience with the constructed components will be presented.

  • 406.
    Allahgholi, A.
    et al.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Becker, J.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Bianco, L.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Delfs, A.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Dinapoli, R.
    Paul Scherrer Inst, CH-5232 Villigen, Switzerland..
    Goettlicher, P.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Graafsma, Heinz
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany.;Mid Sweden Univ, S-85170 Sundsvall, Sweden.
    Greiffenberg, D.
    Paul Scherrer Inst, CH-5232 Villigen, Switzerland..
    Hirsemann, H.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Jack, S.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Klanner, R.
    Univ Hamburg, D-20148 Hamburg, Germany..
    Klyuev, A.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Krueger, H.
    Univ Bonn, D-53012 Bonn, Germany..
    Lange, S.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Marras, A.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Mezza, D.
    Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
    Mozzanica, A.
    Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
    Rah, S.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Xia, Q.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Schmitt, B.
    Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
    Schwandt, J.
    Univ Hamburg, D-20148 Hamburg, Germany.
    Sheviakov, I.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Shi, X.
    Paul Scherrer Inst, CH-5232 Villigen, Switzerland.
    Smoljanin, S.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Trunk, U.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Zhang, J.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    Zimmer, M.
    Deutsch Elektronen Synchrotron DESY, D-22607 Hamburg, Germany..
    AGIPD, a high dynamic range fast detector for the European XFEL2015In: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 10, no 1, article id C01023Article in journal (Refereed)
    Abstract [en]

    AGIPD-(Adaptive Gain Integrating Pixel Detector) is a hybrid pixel X-ray detector developed by a collaboration between Deutsches Elektronen-Synchrotron (DESY), Paul-Scherrer-Institut (PSI), University of Hamburg and the University of Bonn. The detector is designed to comply with the requirements of the European XFEL. The radiation tolerant Application Specific Integrated Circuit (ASIC) is designed with the following highlights: high dynamic range, spanning from single photon sensitivity up to 10(4) 12.5keV photons, achieved by the use of the dynamic gain switching technique using 3 possible gains of the charge sensitive preamplifier. In order to store the image data, the ASIC incorporates 352 analog memory cells per pixel, allowing also to store 3 voltage levels corresponding to the selected gain. It is operated in random-access mode at 4.5MHz frame rate. The data acquisition is done during the 99.4ms between the bunch trains. The AGIPD has a pixel area of 200 x 200 m m(2) and a 500 m m thick silicon sensor is used. The architecture principles were proven in different experiments and the ASIC characterization was done with a series of development prototypes. The mechanical concept was developed in the close contact with the XFEL beamline scientists and is now being manufactured. A first single module system was successfully tested at APS.

  • 407.
    Allahgholi, A.
    et al.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Becker, J.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Bianco, L.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Delfs, A.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Gottlicher, P.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Graafsma, Heinz
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design. Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Hirsemann, H.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Jack, S.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Klyuev, A.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Lange, S.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Marras, A.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Sheviakov, I.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Trunk, U.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Xia, Q.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Zhang, J.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Zimmer, M.
    Center for Free-Electron Laser Science, DESY, Hamburg, Germany .
    Dinapoli, R.
    PSI, Villigen, Switzerland .
    Greiffenberg, D.
    PSI, Villigen, Switzerland .
    Mezza, D.
    PSI, Villigen, Switzerland .
    Mozzanica, A.
    PSI, Villigen, Switzerland .
    Schmitt, B.
    PSI, Villigen, Switzerland .
    Shi, X.
    PSI, Villigen, Switzerland .
    Klanner, R.
    University of Hamburg, Germany .
    Schwandt, J.
    University of Hamburg, Germany .
    Gronewald, M.
    University of Bonn, Germany .
    Kruger, H.
    University of Bonn, Germany .
    Rah, S.
    Pohang Accelerator Laboratory, Pohang, South Korea .
    AGIPD 1.0: The high-speed high dynamic range readout ASIC for the adaptive gain integrating pixel detector at the European XFEL2016In: 2014 IEEE Nuclear Science Symposium and Medical Imaging Conference, NSS/MIC 2014, Institute of Electrical and Electronics Engineers (IEEE), 2016, article id 7431038Conference paper (Refereed)
    Abstract [en]

    AGIPD is a hybrid pixel X-ray detector developed by a collaboration between Deutsches Elektronen-Synchrotron (DESY), Paul-Scherrer-Institute (PSI), University of Hamburg and the University of Bonn. The detector is designed to comply with the requirements of the European XFEL. The radiation tolerant Application Specific Integrated Circuit (ASIC) is designed with the following highlights: high dynamic range, spanning from single photon sensitivity up to 104 × 12.4 keV photons, achieved by the use of dynamic gain switching, auto-selecting one of 3 gains of the charge sensitive pre-amplifier. To cope with the unique features of the European XFEL source, image data is stored in 352 analogue memory cells per pixel. The selected gain is stored in the same way and depth, encoded as one of 3 voltage levels. These memories are operated in random-access mode at 4.5MHz frame rate. Data is read out on a row-by-row basis via multiplexers to the DAQ system for digitisation during the 99.4ms gap between the bunch trains of the European XFEL. The AGIPD 1.0 ASIC features 64×64 pixels with a pixel area of 200×200 μm2. It is bump-bonded to a 500 μm thick silicon sensor. The principles of the chip architecture were proven in different experiments and the ASIC characterization was performed with a series of development prototypes. The mechanical concept of the detector system was developed in close contact with the XFEL beamline scientists to ensure a seamless integration into the beamline setup and is currently being manufactured. The first single module system was successfully tested at APS1 the high dynamic range allows imaging of the direct synchrotron beam along with single photon sensitivity and burst imaging of 352 subsequent frames synchronized to the source.

  • 408.
    Allahgholi, Aschkan
    et al.
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Becker, Julian
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Delfs, Annette
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Dinapoli, Roberto
    Paul Scherrer Inst, Villigen, Switzerland.
    Goettlicher, Peter
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Greiffenberg, Dominic
    Paul Scherrer Inst, Villigen, Switzerland.
    Henrich, Beat
    Paul Scherrer Inst, Villigen, Switzerland.
    Hirsemann, Helmut
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Kuhn, Manuela
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Klanner, Robert
    Univ Hamburg, Hamburg, Germany.
    Klyuev, Alexander
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Krueger, Hans
    Univ Bonn, Bonn, Germany.
    Lange, Sabine
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Laurus, Torsten
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Marras, Alessandro
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Mezza, Davide
    Paul Scherrer Inst, Villigen, Switzerland.
    Mozzanica, Aldo
    Paul Scherrer Inst, Villigen, Switzerland.
    Niemann, Magdalena
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Poehlsen, Jennifer
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Schwandt, Joern
    Univ Hamburg, Hamburg, Germany.
    Sheviakov, Igor
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Shi, Xintian
    Paul Scherrer Inst, Villigen, Switzerland.
    Smoljanin, Sergej
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Steffen, Lothar
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Sztuk-Dambietz, Jolanta
    European XFEL, Schenefeld, Germany.
    Trunk, Ulrich
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Xia, Qingqing
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Zeribi, Mourad
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Zhang, Jiaguo
    Paul Scherrer Inst, Villigen, Switzerland.
    Zimmer, Manfred
    Deutsch Elekt Synchrotron, Hamburg, Germany.
    Schmitt, Bernd
    Paul Scherrer Inst, Villigen, Switzerland.
    Graafsma, Heinz
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design. Deutsch Elekt Synchrotron, Hamburg, Germany.
    The Adaptive Gain Integrating Pixel Detector at the European XFEL2019In: Journal of Synchrotron Radiation, ISSN 0909-0495, E-ISSN 1600-5775, Vol. 26, p. 74-82Article in journal (Refereed)
    Abstract [en]

    The Adaptive Gain Integrating Pixel Detector (AGIPD) is an X-ray imager, custom designed for the European X-ray Free-Electron Laser (XFEL). It is a fast, low-noise integrating detector, with an adaptive gain amplifier per pixel. This has an equivalent noise of less than 1keV when detecting single photons and, when switched into another gain state, a dynamic range of more than 10(4)photons of 12keV. In burst mode the system is able to store 352 images while running at up to 6.5MHz, which is compatible with the 4.5MHz frame rate at the European XFEL. The AGIPD system was installed and commissioned in August 2017, and successfully used for the first experiments at the Single Particles, Clusters and Biomolecules (SPB) experimental station at the European XFEL since September 2017. This paper describes the principal components and performance parameters of the system.

  • 409.
    Allahgholi, Aschkan
    et al.
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Becker, Julian
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Delfs, Annette
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Dinapoli, Roberto
    Paul Scherrer Institut - PSI, Villigen, Switzerland.
    Göttlicher, Peter
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Graafsma, Heinz
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Electronics Design. Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Greiffenberg, Dominic
    Paul Scherrer Institut - PSI, Villigen, Switzerland.
    Hirsemann, Helmut
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Jack, Stefanie
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Klyuev, Alexander
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Krüger, Hans
    Universität Bonn, Bonn, Germany.
    Kuhn, Manuela
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Laurus, Torsten
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Marras, Alessandro
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Mezza, Davide
    Paul Scherrer Institut - PSI, Villigen, Switzerland.
    Mozzanica, Aldo
    Paul Scherrer Institut - PSI, Villigen, Switzerland.
    Poehlsen, Jennifer
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Shefer Shalev, Ofir
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Sheviakov, Igor
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Schmitt, Bernd
    Paul Scherrer Institut - PSI, Villigen, Switzerland.
    Schwandt, Jörn
    Universität Hamburg, Hamburg, Germany.
    Shi, Xintian
    Paul Scherrer Institut - PSI, Villigen, Switzerland.
    Smoljanin, Sergej
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Trunk, Ulrich
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Zhang, Jiaguo
    Paul Scherrer Institut - PSI, Villigen, Switzerland.
    Zimmer, Manfred
    Deutsches Elektronensynchrotron - DESY, Hamburg, Germany.
    Megapixels @ Megahertz – The AGIPD high-speed cameras for the European XFEL2019In: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, ISSN 0168-9002, E-ISSN 1872-9576, Vol. 942, article id 162324Article, review/survey (Refereed)
    Abstract [en]

    The European XFEL is an extremely brilliant Free Electron Laser Source with a very demanding pulse structure: trains of 2700 X-ray pulses are repeated at 10Hz. The pulses inside the train are spaced by 220ns and each one contains up to 1012photons of 12.4keV, while being ≤100fs in length. AGIPD, the Adaptive Gain Integrating Pixel Detector, is a hybrid pixel detector developed by DESY, PSI, and the Universities of Bonn and Hamburg to cope with these properties. It is a fast, low noise integrating detector, with single photon sensitivity (for Eγ⪆6keV) and a large dynamic range, up to 104 photons at 12.4keV. This is achieved with a charge sensitive amplifier with 3 adaptively selected gains per pixel. 352 images can be recorded at up to 6.5MHz and stored in the in-pixel analogue memory and read out between pulse trains. The core component of this detector is the AGIPD ASIC, which consists of 64 × 64 pixels of 200µm×200µm. Control of the ASIC's image acquisition and analogue readout is via a command based interface. FPGA based electronic boards, controlling ASIC operation, image digitisation and 10GE data transmission interface AGIPD detectors to DAQ and control systems. An AGIPD 1Mpixel detector has been installed at the SPB1 experimental station in August 2017, while a second one is currently commissioned for the MID 2 endstation. A larger (4Mpixel) AGIPD detector and one to employ Hi-Z sensor material to efficiently register photons up to Eγ≈25keV are currently under construction. 

  • 410. Allain, J. P.
    et al.
    Dong, Y.
    Vandamme, A. M.
    Moulton, Vincent
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Engineering, Physics and Mathematics.
    Salemi, M.
    Evolutionary rate and genetic drift of hepatitis C virus are not correlated with the host immune response: Studies of infected donor-recipient clusters2000In: Journal of Virology, ISSN 0022-538X, E-ISSN 1098-5514, Vol. 74, no 6, p. 2541-2549Article in journal (Refereed)
    Abstract [en]

    Six donor-recipient clusters of hepatitis C virus (HCV)-infected individuals were studied. For five clusters the period of infection of the donor could be estimated, and for all six clusters the time of infection of the recipients from the donor via blood transfusion was also precisely known. Detailed phylogenetic analyses were carried out to investigate the genomic evolution of the viral quasispecies within infected individuals in each cluster. The molecular clock analysis showed that HCV quasispecies within a patient are evolving at the same rate and that donors that have been infected for longer time tend to have a lower evolutionary rate. Phylogenetic analysis based on the split decomposition method revealed different evolutionary patterns in different donor-recipient clusters. Reactivity of antibody against the first hypervariable region (HVR1) of HCV in donor and recipient sera was evaluated and correlated to the calculated evolutionary rate. Results indicate that anti-HVR1 reactivity was related more to the overall level of humoral immune response of the host than to the HVR1 sequence itself, suggesting that the particular sequence of the HVR1 peptides is not the determinant of reactivity. Moreover, no correlation was found between the evolutionary rate or the heterogeneity of the viral quasispecies in the patients and the strength of the immune response to HVR1 epitopes, Rather, the results seem to imply that genetic drift is less dependent on immune pressure than on the rate of evolution and that the genetic drift of HCV is independent of the host immune pressure.

  • 411.
    Allan, Rachel
    Mid Sweden University, Faculty of Human Sciences, Department of Humanities.
    At the end of the day… An ELF perspective on lexical chunks in spoken business English.2013Conference paper (Other academic)
    Abstract [en]

    Since Sinclair (1991) identified “the idiom principle”, lexical chunks, i.e. frequently occurring clusters of words, have been recognized as an important part of language learning. This importance has been highlighted as advances in computer software have made it easier to identify patterns in language use, and most published English teaching materials are now informed by the analysis of large corpora of native speaker language. However, given that the most widespread use of English language throughout the world takes the form of English as a Lingua Franca (ELF), i.e. English used as a common means of communication among speakers from different first-language backgrounds, there is a strong argument for examining the lexical chunks used in this context when considering students’ needs.

     

    This study uses VOICE (the Vienna-Oxford International Corpus of English), a corpus of spoken ELF interactions, to examine the occurrence of language chunks in ELF in the professional domain. A subcorpus of VOICE comprising of occurring in the professional domain (business, organizational and research contexts) was created, representing approximately 830,000 tokens of transcribed oral text. Recurring lexical chunks were identified using Wordsmith Tools (Scott 2012), and categorized according to type and function. The types of lexical chunk occurring most frequently proved to be vague expressions, e.g. “and so on” and discourse markers such as “at the end of the day”. The pedagogical implications of these findings are considered, concerning whether and how published materials might be supplemented to better meet the needs of those students who expect to use English in an ELF context. 

  • 412.
    Allan, Rachel
    Mid Sweden University, Faculty of Human Sciences, Department of Humanities. Mittuniversitetet.
    Concordances versus dictionaries: Evaluating approaches to word learning in ESOL2010In: Insights into non-native vocabulary teaching and learning / [ed] R. Chacón-Beltrán, C. Abello-Contesse, M. Mar Torreblanca-López & M. Dolores López-Jiménez, Clevedon: Multilingual Matters, 2010, p. 112-126Chapter in book (Refereed)
  • 413.
    Allan, Rachel
    Mid Sweden University, Faculty of Human Sciences, Department of Humanities.
    From Do You Know to I Don’t Know: An Analysis of the Frequency and Usefulness of Lexical Bundles in Five English Language Self-Study Books2017In: Corpus Pragmatics, ISSN 2509-9507, Vol. 1, no 4, p. 351-372Article in journal (Refereed)
    Abstract [en]

    Knowing which phrases to use in everyday situations is a key part of communicating effectively in English, and increasingly language learning materials are expected to reflect this. This paper presents a corpus analysis of five contemporary self-study books for English language learners, to identify common phrases taught, assess their form and function, and evaluate them against a baseline of lexical bundles (i.e. recurring sequences of words) used in social situations by users of English as a Lingua Franca (ELF). Self-study textbooks aim to equip the learner with enough English to function appropriately in a range of different contexts; they usually present language in the form of dialogues in common everyday situations, often supplemented with exercises, grammar explanations and glossaries. While they may differ in pedagogical approach, it could be anticipated that the lexical bundles found would be broadly similar. However, analysis of this corpus showed a lack of consistency both in the form and number of bundles found in the different publications. Furthermore, comparison with a corpus of ELF conversations extracted from the Vienna-Oxford International Corpus of English (VOICE, version 2.0 XML) (2013) highlighted the underrepresentation of lexical bundles with certain pragmatic functions, such as hedges/stance expressions (I don’t know, I think) and vague language (a little bit).

  • 414.
    Allan, Rachel
    Mid Sweden University, Faculty of Human Sciences, Department of Humanities. Mittuniversitetet.
    Lexical bundles from one century to the next: An analysis of language input in English teaching texts2016Conference paper (Other academic)
  • 415.
    Allan, Rachel
    Mid Sweden University, Faculty of Human Sciences, Department of Humanities.
    Lexical bundles from one century to the next: An analysis of language input in English teaching texts2018In: Journal of Historical Pragmatics, ISSN 1566-5852, E-ISSN 1569-9854, Vol. 19, no 2, p. 167-185Article in journal (Refereed)
    Abstract [en]

    This corpus study compares lexical bundles found in the language input of a selection of historical and current English language teaching materials to see what insights they can give into changes in spoken language use. English teaching texts published between 1905 and 1917 were used to construct a historical corpus, and a collection of English language self-study texts published between 2004 and 2014 were used for comparison. Both groups of texts focused on spoken language. The most frequent three-word lexical bundles extracted from each corpus varied considerably. The contemporary texts showed both a greater use of formulaic language and more syntactic complexity within it, while the historical texts relied on simpler structures. An exploratory analysis of the lexical bundles in the historical texts suggests, however, that viewed in conjunction with other historical sources, they can assist in building a picture of spoken language use of the period.

  • 416.
    Allan, Rachel
    Mid Sweden University, Faculty of Human Sciences, Department of Humanities.
    Lexical Bundles in ELF Business Meetings2016In: The Linguistics Journal, ISSN 1718-2301, Vol. 10, no 1, p. 141-163Article in journal (Refereed)
    Abstract [en]

    It is widely accepted that lexical bundles can provide useful insights into the characteristics of different types of discourse. However, studies have tended to focus on native speaker or language learner use, and English as a Lingua Franca (ELF), English used as a common means of communication among speakers from different first-language backgrounds, has received limited attention in this respect. Given that ELF is widely used in a business context, the research reported in this paper is an initial attempt to characterize ELF used in one business community of practice by identifying the frequency and function of lexical bundles in a small corpus of ELF business meetings. It draws on a subcorpus of business meeting transcripts from the Vienna-Oxford Corpus of English (VOICE) to identify the most frequent two-, three- and four-word bundles used, and compares these to lexical bundles used in ELF in other domains and in ENL business meetings (Handford, 2010). Results showed similar levels of use of frequent bundles in ELF business meetings to the comparative data, and a high degree of overlap. Many of the bundles used in ELF business meetings were the same as those used in general contexts, suggesting that there are there are stable core features in spoken ELF, although key bundles indicated certain differences. Furthermore, a number of the ELF business bundles corresponded to frequent ENL bundles. Many of the bundles used in ELF business meetings were associated with developing relationships, such as providing verbal feedback (yeah yeah yeah, mhm mhm mhm) hedging (I don’t know, I think that), and making interpersonal references (you know, you can see), and vague expressions (more or less, and so on) were also common. Idiomatic expressions tended to be avoided, with the exception of at the end of (the day) which had a high frequency in ELF, as in ENL business meetings.

  • 417.
    Allan, Rachel
    Mid Sweden University, Faculty of Human Sciences, Department of Humanities.
    Lexical bundles in English language teaching texts: A century of change?2016Conference paper (Other academic)
  • 418.
    Allan, Rachel
    Mid Sweden University, Faculty of Human Sciences, Department of Humanities. Mittuniversitetet.
    Lexical bundles in graded readers: To what extent does language restriction affect lexical patterning?2016In: System An International Journal of Educational Technology and Applied Linguistics, ISSN 0346-251X, Vol. 59, p. 61-72Article in journal (Refereed)
    Abstract [en]

    This study examines how far the lexical bundles that occur in graded readers are influenced by simplified language, comparing them quantitatively and qualitatively with those occurring in a corpus of authentic prose fiction. Phrasal language found in the graded readers is also evaluated using Martinez and Schmitt’s (2012) PHRASE list. The results are largely encouraging, showing that lexical bundles occur with greater density in graded readers than authentic fiction, that they largely reflect authentic language use, and that most of the phrases deemed to be important and useful are represented. However, differences between B1 and B2 level readers indicate that a higher degree of simplification affects both the range and grammatical type of lexical bundles. Non-transparent lexical bundles, despite being composed of very frequent words, were under-represented in the readers, particularly at B1 level. It is concluded that while graded readers are a valuable source of exposure to lexical bundles, the under-representation of frequently-used opaque phrases points to the need for a more systematic approach to their inclusion.

  • 419.
    Allan, Rachel
    Mid Sweden University, Faculty of Human Sciences, Department of Humanities.
    Lexical Chunks in Business English as a Lingua Franca2014Conference paper (Other academic)
  • 420.
    Allan, Rachel
    Mid Sweden University, Faculty of Human Sciences, Department of Humanities. Mittuniversitetet.
    Recycling the data: Building and using a learner business English writing corpus2018In: Call Your Data: Proceedings of the XIXth CALL Conference / [ed] Josef Colpaert, Ann Aerts & Frederik Cornillie, Antwerp, 2018Conference paper (Refereed)
    Abstract [en]

    This paper describes the construction and use of a small corpus of business English writing by Swedish university students to form the basis of a "learning driven data" (Seidlhofer, 2002) approach to their studies in business writing. Course assignments were used to construct a small corpus which was analysed from a lexical perspective in relation to the Business Service List (BSL) (Browne & Culligan, 2016) and an online Business Letter Corpus (BLC) to identify errors and gaps in knowledge. The findings were then used to inform course content and form the basis for tasks using the learner corpus, which will be integrated into the course structure to provide opportunities for data-driven learning. This study contributes to the growing number of pedagogic applications of learner corpora, demonstrating an approach that could be adapted to a range of other learning contexts.

  • 421.
    Allan, Rachel
    Mid Sweden University, Faculty of Human Sciences, Department of Humanities. Mittuniversitetet.
    The ELT Archive Textbook Corpus: How much has language teaching changed?2018Conference paper (Refereed)
    Abstract [en]

    This presentation describes and demonstrates some potential uses of a historical English Language Teaching (ELT) corpus, using a small pilot corpus of intermediate level ELT textbooks from the 1960s. There have been few systematic and objective historical accounts of language teaching methods and materials (Smith 2015: 84), and the history of ELT has typically been presented as a rather simplified ‘procession of methods’, with an emphasis on their difference than any similarities (Howatt and Smith 2014: 76). Here I will explore some ways in which a corpus-based approach can contribute to our knowledge in this area. The 1960s have been identified as a starting point for the corpus as a range of methodological influences were present in ELT in this decade. The books in the pilot have been selected to reflect this, including courses which situate themselves within structural, audiolingual and situational teaching paradigms. From the corpus, we can identify task-types, examine instructions and target language, and use this data to gain insights into the pedagogical approaches in use. The 1960s corpus is a pilot for a larger project that aims to investigate twentieth century English Language Teaching (ELT) materials diachronically. With the co-operation of the ELT Archive at Warwick University (see https://warwick.ac.uk/fac/soc/al/research/collections/elt_archive/), we aim to digitize a range of representative ELT textbooks from several decades of the last century, and build a corpus through which language teaching methods and language taught can be explored and compared.

     

    Howatt, A.P.R. and R. Smith. 2014. “The History of Teaching English as a Foreign Language, from a British and European Perspective.” Language and History 57 (1): 75-95.

    Smith, Richard. 2015. “Building ‘Applied Linguistic Historiography’: Rationale, Scope, and Methods.” Applied Linguistics 37 (1): 71–87. doi:10.1093/applin/amv056.

  • 422.
    Allansson, Rebecka
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Nursing Sciences.
    Malmrot, Annica
    Mid Sweden University, Faculty of Human Sciences, Department of Nursing Sciences.
    Åtgärder för att förebygga undernäring hos äldre personer med demensdiagnos2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 423.
    Allard, Hannah
    Mid Sweden University, Faculty of Human Sciences, Department of Education.
    Pedagogers syn på lekens betydelse för barns sociala utveckling2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med denna studie var att undersöka pedagogers syn på lekens betydelse för barns sociala utveckling samt hur de beskriver sin roll i detta. Det empiriska materialet samlades in genom kvalitativa intervjuer vilka genomfördes på två olika förskolor inom samma kommun med sex förskollärare. Tidigare forskning visar på lekens betydelse för barns sociala utveckling och att den sociala kompetensen utvecklas genom att barn samspelar och leker. Förskollärarna har en viktig roll i barns lek vilket även styrks genom den tidigare forskningen.I resultatet framkommer det att pedagogerna upplever leken som en betydande faktor för barns sociala utveckling. Resultatet visar även på att pedagogerna ser sin roll och sitt förhållningssätt av stor betydelse gällande barns sociala utveckling.

  • 424.
    Allergren, H
    et al.
    Högskolan i Sundsvall/Härnösand.
    Andersson, I
    Grensjö, B
    Olofsson, Anders
    Något om källor i pedagoghistorisk forskning1980Report (Other academic)
  • 425.
    Allerhed, Cecilia
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Education.
    Johansson, Marie-Louise
    Mid Sweden University, Faculty of Human Sciences, Department of Education.
    "Min hjärna säger att jag inte ska men min kropp gör inte som min hjärna vill": En intervjustudie med åtta pedagogers uppfattningar och upplevelser av elevers motorik, fysisk aktivitet och koncentration.2017Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    I den svenska skolan är elevernas kunskapsinhämtning ofta knutna till klassrumssituationer som kräver elevernas fulla koncentration. Vilka faktorer kan det finnas som påverkar koncentrationen. Vi valde att fokusera på om motorik och fysisk aktivitet kan påverka koncentrationen. Syftet med vårt arbete var att undersöka åtta pedagogers uppfattningar om motorik och fysisk aktivitet har betydelse för eleverna och deras koncentration. Vi valde att göra semistrukturerade kvalitativa intervjuer med åtta pedagoger på tre skolor. Resultatet visade att pedagogernas uppfattningar var att det gjorde skillnad för koncentrationen om eleverna hade rört på sig under dagen och om de hade motoriska svårigheter gav motorisk träning bra resultat.

  • 426.
    Allgren, Erika
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Education.
    Runa, Johanna
    Mid Sweden University, Faculty of Human Sciences, Department of Education.
    Pedagogiska överväganden i utformandet av lekmiljöer: -en kvalitativ studie med sju förskollärare2018Independent thesis Basic level (professional degree), 12 HE creditsStudent thesis
    Abstract [sv]

    Syftet med studien var att studera, beskriva samt problematisera de motiv som ligger till grund för pedagogers val av material och utformning av lekmiljöer. Detta har vi undersökt genom en kvalitativ studie med semistrukturerade intervjuer. Totalt intervjuade vi sju stycken verksamma förskollärare. I analysen av empirin har tre motiv framkommit: Skapa frihet, Skapa ordning samt Möjliggöra delaktighet. Motiven har vi använt som teman i resultatet. Resultatet visade en varierad syn bland pedagogerna på huruvida miljöerna bör byggas upp för att vara tydliga i vad som förväntas av barnen eller öppna för fantasi och kreativitet. Det framkommer hur miljöerna utformas med ett syfte att skapa frihet för bar-nens lek och hur miljöer byggs upp för att inspirera och locka barnen till fantasi och kreativitet. Re-sultatet visade även en vilja att skapa ordning och tydlighet i verksamheten för att tillmötesgå samtliga barns behov. Det framträder en variation på vilket sätt barnen blir delaktiga i utformningen men bar-nens intresse och behov är alltid i pedagogernas fokus.

  • 427.
    Allgren, Frida
    et al.
    Mid Sweden University, Faculty of Human Sciences, Institution of education.
    Bronell, Gina
    Mid Sweden University, Faculty of Human Sciences, Institution of education.
    ”Då sätter jag stopp!”: Pedagogers styrning av den fria leken2018Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Syftet med den här studien var att undersöka vilka uppfattningar pedagoger hade av styrning av den fria leken. Vi ville undersöka om pedagogerna uppfattade att den fysiska miljön kunde styra barns lek och lärande. Vi valde att undersöka uppfattningar eftersom det finns olika sätt att se på barns fria lek. En del forskare belyser allt lärande som leken kan ge medan andra menar att leken är viktig som den är och att lärandet inte ska vara i fokus. För att få en bild av pedagogers uppfattningar har vi använt oss av semistrukturerade, kvalitativa intervjuer. Genom att intervjua åtta pedagoger har vi fått större förståelse för varför de uppfattade att styrning ibland kunde behövas. Enligt pedagogerna kunde rutiner, personal, tidsbrist, brist på lärande, miljö och säkerhet bidra till att den fria leken ibland behövde styras. Detta gjordes för att verksamheten skulle bli så bra som möjligt för alla. Enligt pedagogerna i undersökningen ville de vara mer tillåtande men det visade sig att det kan vara svårt, med tanke på att det var många barn att ta hänsyn till. De uppfattade att lekar ibland kunde styras mot ett lugnare innehåll, när leken sker inomhus. Det kan bero på att de inte kan garantera säkerheten hos barnen om lekar blir för livliga. Detta har vi sedan diskuterat i relation till vad tidigare forskning kommit fram till i vår diskussion. Ämnet var för oss relevant då lek är en viktig del i barns liv och fri lek ofta utgör en stor del av barns dagar på förskolan. Området var för oss intressant att studera för att det utgör en möjlighet att synliggöra något vi och andra kan lära oss mycket av. Utifrån andra pedagogers uppfattningar kunde vi få möjligheten att se hur andra tänker och uppfattar styrningen som sker och varför det ibland kan vara nödvändigt.

  • 428.
    Allgulander, Stina
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Business, Economics and Law.
    Bilfeldt, Elinor
    Mid Sweden University, Faculty of Human Sciences, Department of Business, Economics and Law.
    Konjunkturnedgång och kapitalstruktur: En studie av SMF inom svenska byggnadsbranschen under åren 2008-20152019Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The capital structure of a company is a composition of its equity and liabilities used to finance the company. A company's capital structure differs between companies as each company chooses its own capital structure. Today, 99% of companies in Sweden consists of SME:s. Capital structure also differs from larger companies as SME:s are relatively more dependent on external funding. Generally speaking, SMEs are dependent to external capital to finance the business, in case of a recession, the possibility to gain access from external capital reduces. The capital structure and its company-specific factors may be affected by a crisis where this paper aims to study as how a specific industry's capital structure was affected by the financial crisis in 2008. There are earlier studies on the subject, but it is considered a relatively unexplored research area.The study comprises a sample of 763 SMEs active in the construction industry in Sweden during and after the financial crisis in 2008. The study period is between 2008 and 2015. In order to answer if the financial crisis affected the capital structure of the selected companies, descriptive, correlation and regression analyzes were used to see the relationship between the dependent and independent variables in the study. The dependent variables of the studyconsisted of long-term, short-term and supplier debt and the independence consisted of size, age, profitability, growth and a dummy variable that accounted for the financial crisis. The regression analyzes were conducted to see if the capital structure had been affected by the financial crisis. The results of the analyzes indicate that there is a difference between the periods of time that the capital structure of the companies had been influenced to a certain extent by the economic downturn. The results indicates that debt decreased among companies when the financial crisis continued.

  • 429.
    Allison, Robert S.
    et al.
    York University, Centre for Vision Research, Toronto, Canada.
    Brunnström, Kjell
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Information Systems and Technology. RISE AB (Acreo).
    Chandler, Damon M.
    Shizuoka University, Hamamatsu, Shizuoka, Japan.
    Colett, Hannah R.
    Intel Corp., Santa Clara, California, United States.
    Corriveau, Philip J.
    Intel Corp., Santa Clara, California, United States.
    Daly, Scott
    Dolby Laboratories Inc., Sunnyvale, California, United States.
    Goel, James
    Qualcomm Technologies, Inc., Display Video Processing Group, Markham, Canada.
    Long, Juliana Y.
    Intel Corp., Santa Clara, California, United States.
    Wilcox, Laurie M.
    York University, Centre for Vision Research, Toronto, Canada.
    Yaacob, Yusizwan M.
    Shizuoka University, Hamamatsu, Shizuoka, Japan.
    Yang, Shun-nan
    Pacific University, Forest Grove, Oregon, United States.
    Zhang, Yi
    Xi’an Jiaotong University, School of Electronic and Information Engineering, Xi’an, China.
    Perspectives on the definition of visually lossless quality for mobile and large format displays2018In: Journal of Electronic Imaging (JEI), ISSN 1017-9909, E-ISSN 1560-229X, Vol. 27, no 5, p. 1-23, article id 053035Article in journal (Refereed)
    Abstract [en]

    Advances in imaging and display engineering have given rise to new and improved image and videoapplications that aim to maximize visual quality under given resource constraints (e.g., power, bandwidth).Because the human visual system is an imperfect sensor, the images/videos can be represented in a mathematicallylossy fashion but with enough fidelity that the losses are visually imperceptible—commonly termed“visually lossless.” Although a great deal of research has focused on gaining a better understanding ofthe limits of human vision when viewing natural images/video, a universally or even largely accepted definitionof visually lossless remains elusive. Differences in testing methodologies, research objectives, and targetapplications have led to multiple ad-hoc definitions that are often difficult to compare to or otherwise employ inother settings. We present a compendium of technical experiments relating to both vision science and visualquality testing that together explore the research and business perspectives of visually lossless image quality,as well as review recent scientific advances. Together, the studies presented in this paper suggest that a singledefinition of visually lossless quality might not be appropriate; rather, a better goal would be to establish varyinglevels of visually lossless quality that can be quantified in terms of the testing paradigm.

  • 430.
    Allmungs, Lina
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Social Sciences.
    Noréus Magnéli, Sara
    Mid Sweden University, Faculty of Human Sciences, Department of Social Sciences.
    Det balanserade styrkortets utbredning bland jämtländska företag2008Independent thesis Advanced level (degree of Magister), 10 poäng / 15 hpStudent thesis
    Abstract [sv]

    Magisteruppsats i företagsekonomi, Mittuniversitetet, Östersund

    Författare: Lina Allmungs och Sara Noréus Magnéli

    Handledare: Jan Hemlin

    Titel: Det balanserade styrkortets utbredning bland jämtländska företag

    Bakgrund och problemdiskussion: De senaste två decennierna har den traditionella ekonomistyrningen fått allt mer kritik. Anledningen är att det idag råder andra förhållanden än när den traditionella ekonomistyrningen utvecklades. Kritiken mot den traditionella ekonomistyrningen ledde till att de båda Harvardprofessorerna Robert S Kaplan och David P Norton i början på 1990-talet utvecklade ett nytt koncept under namnet Balanced Scorecard (balanserat styrkort). De traditionella redovisningsmässiga mätningarna fungerade bra under industrialiseringen men i dagens läge är de i otakt med den skicklighet och kompetens som företag försöker att uppnå. Företagen måste därmed eftersträva en balanserad prestation av de finansiella och operationella mätningarna för att få en snabb och överskådlig bild av verksamheten.

    Ovanstående diskussion leder fram till följande frågeställningar:

    •Hur utbrett är det balanserade styrkortet bland Jämtländska företag?

    •Vilka perspektiv och nyckeltal tillämpas?

    Syfte: Studiens syfte var att beskriva och förklara i vilken utsträckning företag i Jämtland använder sig av det balanserade styrkortet. Vi ville undersöka om bransch, antal anställda, omsättning samt årets resultat efter finansnetto har inverkan på valet av att implementera det balanserade styrkortet i verksamheten. Syftet var även att beskriva vilka perspektiv och nyckeltal företagen använder sig av.

    Metod: Ett deduktivt (beskrivande) tillvägagångssätt användes, där vi utgick från kända teorier i ett försök att finna en förståelse för att kunna testa fenomenet empiriskt. Vi ansåg att kvantitativ metod lämpade sig bäst för vår undersökning då vi ville nå ut till en stor del av företagen. Kvalitativa inslag förekom då den kvantitativa forskningen genom en enkät hade inslag av verbala analysmodeller.

    Resultat och slutsats: Användarna av det balanserade styrkortet runt om i världen inkluderar alla typer av företag. Studier visar även att det balanserade styrkortet är utbrett bland företag i Sverige. Styrkort använder vissa generella nyckeltal som speglar mål som är gemensamma för många strategier och oberoende av bransch och företag. Utifrån vår studies resultat anser vi oss kunna hävda att det balanserade styrkortet inte används i någon större utsträckning bland företag i Jämtlands län. Däremot anser vi oss inte kunna dra några generella slutsatser om vilka perspektiv och nyckeltal som är mest frekvent använda hos företagen.

  • 431.
    Alm, Hanna
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Science Education and Mathematics.
    En studie som visar i vilket syfte fyra lärare använder utomhusmatematik i förskoleklass-åk32016Independent thesis Advanced level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Utomhuspedagogik har under de senaste åren ökat inom skolans värld. Jag har upplevt att lärare har börjat prata mer om utomhuspedagogik och använder det mer och mer i undervisningen. Mitt självständiga arbete handlar om hur lärare i grundskolan förskoleklass-åk3 använder sig av utomhusmatematik och i vilket syfte lärarna har när de undervisar inom utomhusmatematik. Studiens syfte är att undersöka i vilket syfte lärare använder utomhusmatematik, vilka positiva respektive negativa sidor de ser/upplever när de undervisar med undervisningsformen samt ett ungefärligt snittvärde på hur många timmar i veckan lärarna använder det. Metoden som tillämpas till denna studie är kvalitativa semistrukturerade intervjuer med fyra verksamma lärare på olika skolor i samma kommun. Resultatet visar att alla lärare jag intervjuade jobbade med utomhusmatematik varje vecka och var positiv till att jobba med det. Lärarna såg också att fler elever fångades upp när de valde att ta ut klassrummet och jobba mer praktiskt. Genom att jobba på detta sätt har alla elever en större chans att jobba mot sina mål samt att eleverna får använda sin lärstil eftersom många olika lärstilar blir möjliga att använda utomhus.

  • 432.
    Alm, Hanna
    Mid Sweden University, Faculty of Human Sciences, Department of Humanities.
    Läslust: Vilka faktorer påverkar läslust2016Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
  • 433.
    Alm Hansell, Therese
    Mid Sweden University, Faculty of Human Sciences, Department of Business, Economics and Law.
    Hur ökar en butik lättast sin försäljning?: En undersökning som visar hur effektiva dofter är sommarknadsföringsmedium2016Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 434.
    Alm, Johanna
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Nursing Sciences.
    Embaye, Selamawit
    Mid Sweden University, Faculty of Human Sciences, Department of Nursing Sciences.
    Sjuksköterskans preventiva arbete mot trycksår: :En litteraturöversikt2014Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 435.
    Alm, Lena
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Enarsson, Andreas
    Mid Sweden University, Faculty of Human Sciences, Department of Health Sciences.
    Triage på akutmottagning: -vad påverkar sjuksköterskans arbete?2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Bakgrund: Triagesystem användes för att identifiera allvarligt sjuka från mindre sjuka på akutmottagningar. En snabb och adekvat behandling var viktig för en god patientsäkerhet. En sjuksköterskas felbedömning kunde ge allvarliga konsekvenser för en patient och andra vårdsökande. Syfte: Att belysa faktorer som påverkar sjuksköterskan i sitt triagearbete på akutmottagning. Metod: En litteraturöversikt gjordes och 18 resultatartiklar inkluderades. Analysarbetet inspirerades av kvalitativ innehållsanalys och resulterade i 4 kategorier och 13 underkategorier. Resultat: Sjuksköterskans triagearbete påverkades av färdigheter, personliga egenskaper, organisation och tillgång till information. Diskussion: Få sjuksköterskor hade utbildning i triage vilket borde uppmärksammas mer med tanke på att ett stort antal patienter söker till akutmottagningar varje dag. Sjuksköterskor borde utgå ifrån gemensamma riktlinjer för att patienter skall behandlas lika oberoende vilken akutmottagning de söker vård på. Slutsats: Erfarenhet, utbildning, kommunikation, intuition, självtillit, arbetsbelastning, arbetsteam, arbetsuppgift, triageskala, helhetsbedömning, initial bedömning, objektiv- samt subjektiv data påverkade triagebedömningen. Troligen förekom en samverkan mellan dem vilket gjorde området komplext.

  • 436.
    Alm, Thor
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Social Work.
    Golshani, Payam
    Mid Sweden University, Faculty of Human Sciences, Department of Social Work.
    Socialt arbete, stöd och matchning: Upplevelser från ungdomar2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The purpose of this study is to study a specific labour market policy support and match (Stödoch matchning) and try to investigate if it had an effect on the unemployed youth’sunemployment situation. The purpose of the study is also to investigate if the unemployedyouths that where chosen for the study had gotten any given effect after attending the labourmarket policy. Because we aim to do a research on the given effect on each individual wehave chosen to a qualitative study. Therefore, we have chosen to interview seven individualsbetween the age of 18 to 25 that have participated in the specific labour market policy. Theyouths we chose were randomly chosen and the interview was semi-structured with openquestions to be able to find a prominent theme in their stories. Unemployment among youngpeople is a social problem. The labor market policy efforts currently available are made forhelping the unemployed and to address unemployment in Sweden.

  • 437.
    Almeida, Tiago P.
    et al.
    PIPG Bioenergia-UNICAMP, Campinas, SP, Brazil.
    Miyazaki, Celina M
    Centro de Ciências e Tecnologias para a Sustentabilidade- UFSCa, Sorocaba, SP, Brazil.
    Volpati, Diogo
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Natural Sciences.
    Silva, Tatiana A.
    University of Campinas (UNICAMP), SP, Brazil .
    Braunger, Maria Luisa
    University of Campinas (UNICAMP), SP, Brazil .
    Barros, Anerise
    University of Campinas (UNICAMP), SP, Brazil .
    Hollmann, Frank
    Delft University of Technology, Delft, The Netherlands.
    Riul Jr, Antonio
    PIPG Bioenergia-UNICAMP, Campinas, SP, Brazil.
    Ultra-Thin Films of Reduced Graphene Oxide (RGO) Nanoplatelets Functionalized with Different Organic Materials2016In: Journal of Bioprocessing & Biotechniques, ISSN 2155-9821, Vol. 6, no 3, article id 1000272Article in journal (Refereed)
    Abstract [en]

    This work aims the functionalization of reduced graphene oxide nanoplatelets with chitosan (G-chitosan) and also with poly(styrenesulfonic acid) (GPSS), thus forming stable, dispersed aqueous solutions. G-chitosan and GPSS solutions allowed the layer-by-layer (LbL) film formation with glucose oxidase (GOx), establishing multilayered nanostructures with elevated control in thickness and morphology. The graphene nanoplatelets were characterized by UV-vis and FTIR spectroscopies, resulting in good adherence and linear deposition of the graphene nanoplatelets with GOx in the LbL structures.Cyclic voltammetry shows an enlargement in the current intensity with increasing number of deposited LbL layers, possibly owing to the formation of conducting paths by the graphene nanoplatelets in the tailored multilayer nanomaterial formed

  • 438. Almesåker, Ann
    et al.
    Bourne, Susan A.
    Ramon, Gaëlle
    Scott, Janet. L.
    Strauss, Chris. R.
    Coordination chemistry of N,N,4-tris(pyridin-2-ylmethyl)aniline, a novel flexible, multimodal ligand2007In: CrystEngComm, ISSN 1466-8033, E-ISSN 1466-8033, Vol. 9, no 11, p. 997-1010Article in journal (Refereed)
    Abstract [en]

    The ligand N, N, 4-tris(pyridin-2-ylmethyl) aniline was synthethised using a multicomponent reaction, which is applicable to the synthesis of a large library of similarly structured ligands. A range of metal complexes with copper, cobalt and manganese ions were crystallised as discrete complexes, dimers and 1D coordination polymers, illustrating the flexibility of the ligand in the preparation of diverse structures. While coordination about the metal centres is similar in each group with a common metal ion, the different structures represent materials with varying structural and packing topologies. Varying the counterions and crystallisation solvents gives rise to discrete complexes, dimers and a porous 1D coordination polymer. In the latter case, solvent molecules entrapped in the channels are replaceable and guest exchange is detected by single crystal and powder diffraction indicating interesting storage possibilities.

  • 439.
    Almesåker, Ann
    et al.
    School of Chemistry and Centre for Green Chemistry, Monash University, Victoria 3800, Australia.
    Gamez, P.
    Reedijk, J.
    Scott, J. L.
    Spiccia, L.
    Teat, S. J.
    Stabilisation of a very short Cu-F bond within the protected cavity of a copper(II) compound from a tris(2-aminoethyl)amine derivative2009In: Dalton Transactions, ISSN 1477-9226, E-ISSN 1477-9234, Vol. 7, no 21, p. 4077-4080Article in journal (Refereed)
    Abstract [en]

    The copper(II) coordination compound of an N-functionalised derivative of tris(2-aminoethyl)amine forms a cavity that is an excellent fluoride ion host, generating a Cu-F entity with a very short distance (182 pm) and characterised by a fluoride ion devoid of any additional intermolecular interactions.

  • 440.
    Almesåker, Ann
    et al.
    School of Chemistry and ARC Special Research Centre for Green Chemistry, Monash University, Wellington Road, Clayton, Victoria 3800, Australia.
    Scott, J. L.
    Spiccia, L.
    Strauss, C. R.
    One-pot synthesis of tripodal tris(2-aminoethyl)amine derivatives from seven molecular components2009In: Tetrahedron Letters, ISSN 0040-4039, E-ISSN 1359-8562, Vol. 50, no 16, p. 1847-1850Article in journal (Refereed)
    Abstract [en]

    Complex tripodal tris(2-aminoethyl)amine (tren)-based ligands have been prepared in a single-pot reaction of tren with 3 equiv each of cyclohexenone and a benzaldehyde derivative (i.e., from seven components and three molecular types). The highest yield of product was obtained for p-nitrobenzaldehyde, the most electrophilic aldehyde used. (C) 2009 Published by Elsevier Ltd.

  • 441.
    Almgren, Elin
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Social Work.
    Helgesson, Rebecca
    Mid Sweden University, Faculty of Human Sciences, Department of Social Work.
    Tvångsvård, mental våldtäkt?: Klienters upplevelser av LVM2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Studien har en kvalitativ innehållsanalytisk ansats med syfte att synliggöra klientperspektivet av tvångsvård av missbrukare i Sverige, enligt LVM lagstiftning. Semistrukturerade intervjuer med 9 klienter från två SiS institutioner har genomförts och könsfördelningen var jämn. Kvinnor är generellt mer positivt inställda till tvångsvård. Det har belysts brister i befintlig vård på LVM-institutionerna. Tydligt är att det finns olika åsikter angående hur det är och hur det borde vara. Vissa menar att det är bra som det är trots brister, andra menar att det som behövs finns tillgängligt, medan en tredje syn är att det mesta bör ändras. Samarbete mellan parter behöver förstärkas för att bibehålla viljestyrka till ett liv utan droger. Hjälp inför framtiden har av majoriteten av respondenterna belysts inte fås under vistelsen på institutionen, det förväntades komma efter, eventuellt till friare vårdform som klienter slussas till innan utskrivning, eller senare i samråd med socialtjänsten.

  • 442.
    Almgren, Linda
    et al.
    Mid Sweden University, Faculty of Human Sciences, Institution of education.
    Jeffs, Maria
    Mid Sweden University, Faculty of Human Sciences, Institution of education.
    Intensivundervisning i matematik: Ett sätt att fånga upp elever?2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Utvecklingen av svenska elevers matematikkunskaper har på senare tid setts som oroande då internationella jämförelser visat på sjunkande resultat. Skolverkets matematiksatsning gav Lillskolan möjlighet att söka, och få, ekonomiskt stöd för ett matematikprojekt som innefattade intensivundervisning i matematik.

  • 443.
    Almqvist, Jessica
    Mid Sweden University, Faculty of Human Sciences, Department of Psychology.
    Reducering av ofrivilliga minnen genom att påverka konsolidering av aversivt auditivt stimulus2016Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
  • 444.
    Almqvist, Katarina
    Mid Sweden University, Faculty of Human Sciences, Department of Nursing Sciences.
    Sjuksköterskors attityder och förhållningssätt kring patienter med psykisk ohälsa - en litteraturöversikt.2014Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 445.
    Almqvist, Mickaela
    Mid Sweden University, Faculty of Human Sciences, Department of Education.
    Värdegrundsarbete: fallstudie om hur Project Charlie kan tillämpas i värdegrundsarbete2015Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 446.
    Almqvist, Per
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Nursing Sciences.
    Göransdotter, Laila
    Mid Sweden University, Faculty of Human Sciences, Department of Nursing Sciences.
    Sjuksköterskors upplevelser av orsaker till bristande läkemedelshantering2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Bakgrund: Vårdskador är ett internationellt problem inom vården och en stor del av dessa är läkemedelsrelaterade. Följderna blir skador eller i värsta fall döden för patienten. Ofta kan det resultera i förlängda vårdtider och emotionell påverkan för sjuksköterskan som har begått misstaget. Syfte: Att belysa sjuksköterskors erfarenheter om vilka orsaker som bidrar till att fel begås vid hantering av läkemedel. Metod: Arbetet gjordes som en litteraturöversikt. Vetenskapliga artiklar i form av primärkällor söktes i databaserna PubMed och Cinahl. Fjorton artiklar hittades med hjälp av relevanta vedertagna söktermer. Dessa granskades med hjälp av granskningsmall och analyserades genom att de lästes upprepade gånger därefter sammanställdes i en översiktstabell. Likheter och skillnader jämfördes. Sex huvudområden identifierades med hjälp av färgkodning. Resultat: Huvudområdena som framkom var pressade arbetssituationer, brister i arbetsmiljön, otydlig information, brister i samarbete och laganda, brist på uppmärksamhet och brist på kunskap och erfarenhet. Diskussion: Bemanningen bör motsvara arbetstyngden på avdelningen, arbetsmiljön kan förbättras för att undvika distraktioner, tekniska system för läkemedelshantering kan bidra till att höja säkerheten. Slutsats: Förbättrad kunskap om bakomliggande orsaker till bristande läkemedelshantering kan bidra till högre patientsäkerhet på sjukhus. Mera forskning i ämnet kring orsaker och preventionsarbete behövs.

  • 447.
    Almqvist, Sanna
    et al.
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Nilsson, Lina
    Mid Sweden University, Faculty of Science, Technology and Media, Department of Quality Technology and Management, Mechanical Engineering and Mathematics.
    Uppbyggnad av kvalitetsledningssystem i utbildningsverksamhet: En kvalitativ studie på Barn- och utbildningsförvaltningeni Flens kommun2013Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [sv]

    Aktuell forskning visar att svenska skolresultat är nedåtgående, där bristande systematiskt kvalitetsarbete pekas ut som en möjlig anledning till att eleverna inte når de grundläggande målen. Flens kommun var en av de kommuner som uppmanats av Skolverket att utveckla sitt systematiska kvalitetsarbete och vidare initierade kommunen uppbyggnaden av ett kvalitetsledningssystem. Studiens syfte var att erhålla en djupare förståelse för medarbetarna i Flens kommuns upplevelser av uppbyggnaden. Studien sökte genom ett kvalitativt perspektiv, svar på frågor kring vad ett kvalitetsledningssystem kan definieras som, vilka moment som är betydelsefulla samt vilka deltagare som upplevs betydelsefulla vid uppbyggandet. Resultaten från de båda sammanställdes i fyra kategorier: Anpassning till kontext, Stabil process, Management och Allas delaktighet. I slutsatsen framkom att ett kvalitetsledningssystem ska vara ett stöd i det dagliga arbetet, ett system som leder mot kvalitet, där alla görs delaktiga. Som stöd i kvalitetsarbetet föreslogs befintliga modeller och teorier.

  • 448.
    Almqvist, Sara
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Nursing Sciences.
    Damberg, Agnes
    Mid Sweden University, Faculty of Human Sciences, Department of Nursing Sciences.
    Hälso- och sjukvårdenspersonalens följsamhet till handhygien.Vilka faktorer kan påverka?2016Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
  • 449.
    Almroth, Tomas
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Nursing Sciences.
    Asplund, Malin
    Mid Sweden University, Faculty of Human Sciences, Department of Nursing Sciences.
    Patientens förväntningar av den pyskiatriska omvårdnaden: En Litteraturstudie2018Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
  • 450.
    Almroth, Tomas
    et al.
    Mid Sweden University, Faculty of Human Sciences, Department of Nursing Sciences.
    Forslund, Marlene
    Mid Sweden University, Faculty of Human Sciences, Department of Nursing Sciences.
    Preoperativ patientinformation: -Ett steg mot ökad empowerment?2013Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
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