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  1. Article ; Online: Investigation of ∼ 20–40 mHz ULF waves and their driving mechanisms in Mercury's dayside magnetosphere

    E. Liljeblad / T. Karlsson

    Annales Geophysicae, Vol 35, Pp 879-

    2017  Volume 884

    Abstract: Ultra-low-frequency (ULF) waves in the ∼ 20–40 mHz range are frequently observed in the Mercury ... KH) ULF waves (which are retained as a subset of the wave events studied in this paper) identified ... in a previous study. Significant ULF wave activity is observed in the dawn sector of the magnetosphere ...

    Abstract Ultra-low-frequency (ULF) waves in the ∼ 20–40 mHz range are frequently observed in the Mercury magnetosphere using Mercury Surface Space Environment Geochemistry, and Ranging (MESSENGER) magnetic field data. The majority of these waves have very similar characteristics to the waves likely driven by Kelvin–Helmholtz (KH) ULF waves (which are retained as a subset of the wave events studied in this paper) identified in a previous study. Significant ULF wave activity is observed in the dawn sector of the magnetosphere. This indicates that Mercury KH waves may be more common between 6 and 12 magnetic local time than previously predicted and that magnetospheric ULF waves in the frequency band ∼ 20–40 mHz can be used as a detection tool for Hermean KH waves.
    Keywords Science ; Q ; Physics ; QC1-999 ; Geophysics. Cosmic physics ; QC801-809
    Language English
    Publishing date 2017-07-01T00:00:00Z
    Publisher Copernicus Publications
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Book ; Online: Image-Guided Radiotherapy for Effective Radiotherapy Delivery

    Karlsson, Ulf Lennart / Nguyen, Nam Phong

    2016  

    Abstract: Image-guided radiotherapy (IGRT) is a new radiotherapy technology that combines the rapid dose fall off associated with intensity-modulated radiotherapy (IMRT) and daily tumor imaging allowing for high precision tumor dose delivery and effective sparing ... ...

    Abstract Image-guided radiotherapy (IGRT) is a new radiotherapy technology that combines the rapid dose fall off associated with intensity-modulated radiotherapy (IMRT) and daily tumor imaging allowing for high precision tumor dose delivery and effective sparing of surrounding normal organs. The new radiation technology requires close collaboration between radiologists, nuclear medicine specialists, and radiation oncologists to avoid marginal miss. Modern diagnostic imaging such as positron emission tomography (PET) scans, positron emission tomography with Computed Tomograpgy (PET-CT), and magnetic resonance imaging (MRI) allows the radiation oncologist to target the positive tumor with high accuracy. As the tumor is well visualized during radiation treatment, the margins required to avoid geographic miss can be safely reduced , thus sparing the normal organs from excessive radiation.-

    When the tumor is located close to critical radiosensitive structures such as the spinal cord, IGRT can deliver a high dose of radiation to the tumor and simultaneously decreasing treatment toxicity, thus potentially improving cure rates and patient quality of life. During radiotherapy, tumor shrinkage and changes of normal tissues/volumes can be detected daily with IGRT. The volume changes in the target volumes and organs at risk often lead to increased radiation dose to the normal tissues and if left uncorrected may result in late complications. Adaptive radiotherapy with re-planning during the course of radiotherapy is therefore another advantage of IGRT over the conventional radiotherapy techniques. This new technology of radiotherapy delivery provides the radiation oncologist an effective tool to improve patient quality of life. In the future, radiation dose-escalation to the residual tumor may potentially improve survival rates.-

    Because the treatment complexity, a great deal of work is required from the dosimetry staff and physicists to ensure quality of care. Preliminary clinical results with IGRT are encouraging but more prospective studies should be performed in the future to assess the effectiveness of IGRT in improving patient quality of life and local control. In this Frontiers Research Topic, we encourage submission of original papers and reviews dealing with imaging for radiotherapy planning, the physics and dosimetry associated with IGRT, as well as the clinical outcomes for cancer treatment with IGRT for all tumor sites
    Keywords Neoplasms. Tumors. Oncology. Including cancer and carcinogens ; Medicine (General)
    Size 1 electronic resource (111 p.)
    Publisher Frontiers Media SA
    Document type Book ; Online
    Note English ; Open Access
    HBZ-ID HT020090570
    ISBN 9782889198498 ; 2889198499
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

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  3. Book: Skelettröntgenundersökningar; handbok för röntgenpersonal [av] Anders Movin [och] Ulf Karlsson

    Movin, Anders / Karlsson, Ulf

    (Scandinavian university books)

    1969  

    Series title Scandinavian university books
    MeSH term(s) Bone and Bones/diagnostic imaging ; Radiography
    Language Swedish
    Size 266 p., illus.
    Publisher Svenska bokförlaget
    Publishing place Stockholm
    Document type Book
    Note "Tabeller" inserted in pocket at end.
    Database Catalogue of the US National Library of Medicine (NLM)

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  4. Article: Mycoplasma pneumonia with severe cold agglutinin hemolysis, thrombocytosis, leukemoid reaction and acute renal failure.

    Widén, Johan / Jönsson, Göran / Karlsson, Ulf

    IDCases

    2023  Volume 31, Page(s) e01689

    Abstract: Mycoplasma pneumoniae (M. pneumoniae) ...

    Abstract Mycoplasma pneumoniae (M. pneumoniae)
    Language English
    Publishing date 2023-01-13
    Publishing country Netherlands
    Document type Case Reports
    ZDB-ID 2745454-X
    ISSN 2214-2509
    ISSN 2214-2509
    DOI 10.1016/j.idcr.2023.e01689
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Guidelines for the management of open-angle glaucoma: National Program Area Eye Diseases, National Working Group Glaucoma.

    Jóhannesson, Gauti / Stille, Ulf / Taube, Amelie Botling / Karlsson, Markus / Kalaboukhova, Lada / Bergström, Anders / Peters, Dorothea / Lindén, Christina

    Acta ophthalmologica

    2024  Volume 102, Issue 2, Page(s) 135–150

    MeSH term(s) Humans ; Glaucoma, Open-Angle/diagnosis ; Glaucoma, Open-Angle/epidemiology ; Glaucoma, Open-Angle/therapy ; Glaucoma ; Intraocular Pressure
    Language English
    Publishing date 2024-01-02
    Publishing country England
    Document type Journal Article
    ZDB-ID 2408333-1
    ISSN 1755-3768 ; 1755-375X
    ISSN (online) 1755-3768
    ISSN 1755-375X
    DOI 10.1111/aos.16599
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Ul I Zs.90: Show issues Location:
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  6. Article ; Online: Complete protection from covid-19 is possible for health workers.

    Karlsson, Ulf / Fraenkel, Carl-Johan

    BMJ (Clinical research ed.)

    2020  Volume 370, Page(s) m2641

    MeSH term(s) Betacoronavirus ; COVID-19 ; Coronavirus Infections/prevention & control ; Health Personnel ; Humans ; Occupational Exposure/prevention & control ; Pandemics/prevention & control ; Personal Protective Equipment/supply & distribution ; Pneumonia, Viral/prevention & control ; SARS-CoV-2
    Keywords covid19
    Language English
    Publishing date 2020-07-07
    Publishing country England
    Document type Editorial
    ZDB-ID 1362901-3
    ISSN 1756-1833 ; 0959-8154 ; 0959-8146 ; 0959-8138 ; 0959-535X ; 1759-2151
    ISSN (online) 1756-1833
    ISSN 0959-8154 ; 0959-8146 ; 0959-8138 ; 0959-535X ; 1759-2151
    DOI 10.1136/bmj.m2641
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Ua VI Zs.10: Show issues Location:
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  7. Article ; Online: Covid-19: risks to healthcare workers and their families.

    Karlsson, Ulf / Fraenkel, Carl-Johan

    BMJ (Clinical research ed.)

    2020  Volume 371, Page(s) m3944

    MeSH term(s) Betacoronavirus ; COVID-19 ; Coronavirus Infections/epidemiology ; Coronavirus Infections/transmission ; Family ; Health Personnel ; Humans ; Occupational Exposure ; Pandemics ; Pneumonia, Viral/epidemiology ; Pneumonia, Viral/transmission ; Risk ; SARS-CoV-2
    Keywords covid19
    Language English
    Publishing date 2020-10-28
    Publishing country England
    Document type Editorial
    ZDB-ID 1362901-3
    ISSN 1756-1833 ; 0959-8154 ; 0959-8146 ; 0959-8138 ; 0959-535X ; 1759-2151
    ISSN (online) 1756-1833
    ISSN 0959-8154 ; 0959-8146 ; 0959-8138 ; 0959-535X ; 1759-2151
    DOI 10.1136/bmj.m3944
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Ua VI Zs.10: Show issues Location:
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  8. Article ; Online: An Experimental Cold Gas Cannon for the Study of Porcine Lung Contusion and Behind Armor Blunt Trauma.

    Karlsson, Tomas / Olsson, Lars-Gunnar / Gustavsson, Jenny / Arborelius, Ulf P / Risling, Mårten / Günther, Mattias

    Annals of biomedical engineering

    2023  Volume 51, Issue 12, Page(s) 2762–2771

    Abstract: Behind armor blunt trauma (BABT) is a non-penetrating injury caused by the rapid deformation of body armor, by a projectile, which may in extreme circumstances cause death. The understanding of the mechanisms is still low, in relation to what is needed ... ...

    Abstract Behind armor blunt trauma (BABT) is a non-penetrating injury caused by the rapid deformation of body armor, by a projectile, which may in extreme circumstances cause death. The understanding of the mechanisms is still low, in relation to what is needed for safety threshold levels. Few models of graded kinetic energy transfer to the body exist. We established an experimental model for graded BABT. The cold gas cannon was air-driven, consisted of a pressure vessel, a barrel, and a pressure actuator. It required short training to operate and was constructed by standard components. It produced standardized expulsion of plastic projectiles with 65 mm and weight 58 g. Velocity correlated linearly to pressure (R 0.9602, p < 0.0001), equation Y = 6.558*X + 46.50. Maximum tested pressure was 10 bar, velocity 110 m/s and kinetic energy (E
    MeSH term(s) Male ; Swine ; Animals ; Forensic Ballistics ; Thoracic Injuries/diagnostic imaging ; Protective Clothing/adverse effects ; Wounds, Nonpenetrating/diagnostic imaging ; Contusions ; Lung
    Language English
    Publishing date 2023-08-02
    Publishing country United States
    Document type Journal Article
    ZDB-ID 185984-5
    ISSN 1573-9686 ; 0191-5649 ; 0090-6964
    ISSN (online) 1573-9686
    ISSN 0191-5649 ; 0090-6964
    DOI 10.1007/s10439-023-03334-7
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