Greinar- HÍ: Síðast bætt við

  • Haldar, Soumyajyoti; von Malottki, Stephan; Meyer, Sebastian; Bessarab, Pavel; Heinze, Stefan (American Physical Society (APS), 2018-08-27)
    We show that stable skyrmions with diameters of a few nanometers can emerge in atomic Pd/Fe bilayers on the Rh(111) surface. Based on density functional theory we calculate the exchange and the Dzyaloshinskii-Moriya interaction as well as the ...
  • Müller, Gideon Philipp; Bessarab, Pavel; Vlasov, Sergei M.; Lux, Fabian; Kiselev, Nikolai S.; Blügel, Stefan; Uzdin, Valery M.; Jónsson, Hannes (American Physical Society (APS), 2018-11-06)
    Various transitions that a magnetic Skyrmion can undergo are found in calculations using a method for climbing up the energy surface and converging onto first order saddle points. In addition to collapse and escape through a boundary, the method ...
  • Vilmundardóttir, Olga Kolbrún; Gísladóttir, Guðrún; Lal, Rattan (Informa UK Limited, 2017-05-24)
    SOC has received increased attention over the last decades because of its role as an option to mitigate the effects of increased anthropogenic greenhouse gas emissions. In Iceland, the loss of vegetation and soil due to land-use and natural processes ...
  • Ågerstrand, Marlene; Christiansen, Sofie; Hanberg, Annika; Rudén, Christina; Andersson, Lars; Andersen, Sjur; Appelgren, Henrik; Bjørge, Christine; Clausen, Ian Henning; Eide, Dag Markus; Hartmann, Nanna B.; Husøy, Trine; Halldórsson, Halldór Pálmar; van der Hagen, Marianne; Ingre-Khans, Ellen; Lillicrap, Adam David; Beltoft, Vibe Meister; Mörk, Anna-Karin; Murtomaa-Hautala, Mari; Nielsen, Elsa; Ólafsdóttir, Kristín; Palomäki, Jaana; Papponen, Hinni; Reiler, Emilie Marie; Stockmann-Juvala, Helene; Suutari, Tiina; Tyle, Henrik; Beronius, Anna (Wiley, 2018-01-03)
    This is a call for action to scientific journals to introduce reporting requirements for toxicity and ecotoxicity studies. Such reporting requirements will support the use of peer‐reviewed research studies in regulatory decision‐making. Moreover, this ...
  • Lemarquis, Andri Leo; Einarsdóttir, Helga K.; Kristjansdóttir, Rakel N.; Jonsdottir, Ingileif; Ludviksson, Bjorn (Frontiers Media SA, 2018-04-27)
    Selective IgA deficiency (IgAD) is the most common primary antibody deficiency in the western world with affected individuals suffering from an increased burden of autoimmunity, atopic diseases and infections. It has been shown that IgAD B cells can ...
  • Gudmundsdottir, Helga; Trehub, Sandra (SAGE Publications, 2017-07)
    The present study explored the singing ability of toddlers 16 months to 3 years of age by examining North American adults’ ability to identify toddlers’ renditions of familiar tunes sung with foreign lyrics. After listening to each toddler’s song, ...
  • Jónsdóttir, Svanborg R.; Guðjónsdóttir, Hafdís; Gísladóttir, Karen Rut (The Educational Research Institute, 2018-12-21)
    Í greininni er fjallað um sameiginlega hópleiðsögn þriggja leiðbeinenda meistaranema. Tilgangur rannsóknarinnar var að sýna fram á gildi þess að búa til námssamfélag nemenda og kennara um vinnu að meistaraprófsverkefni. Markmið rannsóknarinnar var að ...
  • Hilmarsdóttir, Hafdís Guðrún; Birgisdóttir, Freyja; Gestsdóttir, Steinunn (The Educational Research Institute, 2018-12-21)
    Rannsóknir sýna að lestraráhugahvöt hefur áhrif á ýmsar hliðar lestrarfærni, svo sem umskráningu, lesskilning og orðaforða. Börn með litla lestraráhugahvöt lesa minna en jafnaldrar með meiri lestraráhuga og sterk tengsl eru á milli slakrar lestraráhugahvatar, ...
  • Harðardóttir, Sigrún; Svavarsdóttir, Sveinbjörg Júlía (The Educational Research Institute, 2018-12-21)
    Háskólar þurfa að bregðast við aukinni fjölbreytni í hópi nemenda með því að mæta ólíkum þörfum þeirra. Í greininni eru kynntar niðurstöður rannsóknar á upplifun og reynslu nemenda sem stunda nám við Félagsvísindasvið Háskóla Íslands. Markmið rann ...
  • Skirnisson, Karl; Pálsdóttir, Guðný Rut; Eydal, Matthías (Agricultural University of Iceland, 2018)
    Importing dogs into Iceland was prohibited or restricted from 1909 until 1989, when the ban was lifted and importing dogs and cats permitted, with the proviso of an enforced period of quarantine and the requirement of specific medical treatments and ...
  • Andrésdóttir, Valgerður (Agricultural University of Iceland, 2018)
    Maedi-visna virus (MVV) is a lentivirus of sheep causing inflammation in many organs, primarily the lungs and CNS. HIV and SIV also belong to the lentivirus genus of retroviruses. MVV and HIV have many features in common, including genome organization, ...
  • Hansen, Börkur; Lárusdóttir, Steinunn Helga (The Educational Research Institute, 2018-12-21)
    Nútímakenningar um skólastjórnun beina kastljósinu m.a. að sýn skólastjóra á hlutverk sitt, þeim gildum sem hafa áhrif á starfshætti þeirra (Begley, 2004; Branson, 2005) og hvernig þeir forgangsraða verkefnum sínum. Á síðasta aldarfjórðungi hafa ...
  • Larranaga, Nicolas; Valdimarsson, S.K.; Linnansaari, T.; Steingrímsson, Stefán Óli (Wiley, 2018-02-28)
    Streams fluctuate in water flow because of natural (e.g., rain) and human‐induced events (e.g., hydropeaking). Magnitude, frequency, and predictability of these events can have drastic consequences for fish populations. We studied how rapid modifications ...
  • Hrafnkelsdóttir, Soffía Margrét; Brychta, Robert J.; Rögnvaldsdóttir, Vaka; Gestsdottir, Sunna; Chen, Kong Y.; Jóhannsson, Erlingur Sigurður; Guðmundsdóttir, Sigriður Lára; Arngrímsson, Sigurbjörn Árni (Public Library of Science (PLoS), 2018-04-26)
    Objective Few studies have explored the potential interrelated associations of screen time and physical activity with mental health in youth, particularly using objective methods. We examined cross-sectional associations of these variables among ...
  • Kokorsch, Matthias; Karlsdóttir, Anna; Benediktsson, Karl (Springer Nature, 2015-10-14)
    Icelandic fisheries have gone through tremendous changes since the 1980s and the gradual implementation of individual transferable quotas. The paper investigates to what extent the power of different stakeholders in the fisheries management system ...
  • Pan, Li-Long; Deng, Yuan-Yuan; Wang, Ruxing; Wu, Chengfei; Li, Jiahong; Niu, Wenying; Yang, Qin; Bhatia, Madhav; Guðmundsson, Guðmundur Hrafn; Agerberth, Birgitta; Diana, Julien; Sun, Jia (Frontiers Media SA, 2018-04-17)
    Acute pancreatitis (AP) is one common clinical acute abdominal disease, for which specific pharmacological or nutritional therapies remain elusive. Lactose, a macronutrient and an inducer of host innate immune responses, possesses immune modulatory ...
  • Huang, Guo-yuan; Ohlsson, Tommy; Zhou, Shun (American Physical Society (APS), 2018-04-05)
    We investigate possible interactions between neutrinos and massive scalar bosons via g ϕ ¯ ν ν ϕ (or massive vector bosons via g V ¯ ν γ μ ν V μ ) and explore the allowed parameter space of the coupling constant g ϕ (or g V ) ...
  • Mindus, Stephanie; Malinovschi, Andrei; Ekerljung, Linda; Forsberg, Bertil; Gislason, Thorarinn; Jõgi, Rain; Franklin, Karl A.; Holm, Mathias; Johannessen, Ane; Middelveld, Roelinde; Schlünssen, Vivi; Svanes, Cecilie; Torén, Kjell; Lindberg, Eva; Janson, Christer (Public Library of Science (PLoS), 2018-04-02)
    Background The term Asthma and COPD Overlap (ACO) describes a condition where asthma and COPD overlap. We aimed to investigate associations between ACO and insomnia and respiratory symptoms, and to investigate the prevalence of ACO and the characteristics ...
  • Edvardsson, Kristinn Nikulás; Păstrăv, Cezara; Benediktsson, Karl (Elsevier BV, 2018-08)
    Consolidation of the fishing industry worldwide is an issue heavily debated among scholars. Many economists have argued for its necessity, while others – such as sociologists, anthropologists and geographers – have pointed out negative effects of ...
  • Vilmundardóttir, Olga Kolbrún; Sigurmundsson, Friðþór Sófus; Pedersen, Gro; Belart, Joaquín M. C.; Kizel, Fadi; Falco, Nicola; Benediktsson, Jon Atli; Gísladóttir, Guðrún (SAGE Publications, 2018-10-07)
    Lava flows pose a hazard in volcanic environments and reset ecosystem development. A succession of dated lava flows provides the possibility to estimate the direction and rates of ecosystem development and can be used to predict future development. We ...