Greinar- HÍ: Síðast bætt við

  • Bjarnason, Thoroddur; Edvardsson, Ingi Runar (Elsevier BV, 2017-08)
    Low levels of education have serious social, economic and cultural ramifications in rural areas. In many countries, regional universities have explicitly been built to educate the local population, create professional jobs and stimulate innovation. ...
  • Chetverikov, Andrey; Kuvaldina, Maria; MacInnes, W. Joseph; Jóhannesson, Ómar I.; Kristjansson, Arni (Springer Nature, 2018-01-23)
    People often miss salient events that occur right in front of them. This phenomenon, known as change blindness, reveals the limits of visual awareness. Here, we investigate the role of implicit processing in change blindness using an approach that ...
  • Ólafsson, Sigurður; Tyrfingsson, Þórarinn; Rúnarsdóttir, Valgerður; Bergmann, Óttar Már; Hansdóttir, Ingunn; Björnsson, Einar Stefán; Jóhannsson, B.; Sigurðardóttir, Bryndís; Fridriksdóttir, R. H.; Löve, Arthur; Hellard, M.; Löve, Þorvarður Jón; Gudnason, Thorarinn; Heimisdottir, María; Gottfredsson, Magnus (Wiley, 2018-03-07)
    A nationwide programme for the treatment of all patients infected with hepatitis C virus (HCV) was launched in Iceland in January 2016. By providing universal access to direct‐acting antiviral agents to the entire patient population, the two key aims ...
  • McGarrity, Sarah; Anuforo, Ósk; Halldórsson, Haraldur; Bergmann, Andreas; Halldórsson, Skarphéðinn; Palsson, Sirus; Henriksen, Hanne H.; Johansson, Pär Ingemar; Rolfsson, Óttar (Springer Nature, 2018-05-01)
    Endothelial dysfunction contributes to sepsis outcome. Metabolic phenotypes associated with endothelial dysfunction are not well characterised in part due to difficulties in assessing endothelial metabolism in situ. Here, we describe the construction ...
  • Magnúsdóttir, Edda; Lim, Rangyn (Public Library of Science (PLoS), 2019-01-23)
    Humpback whale songs associated with breeding behaviors are increasingly reported outside of traditional low latitude breeding grounds. Songs from a subarctic feeding ground during the winter were quantitatively characterized to investigate the structure ...
  • Haraldsdottir, Alfheidur; Torfadottir, Johanna; Valdimarsdottir, Unnur; Adami, Hans-Olov; Aspelund, Thor; Tryggvadottir, Laufey; Þórðardóttir, Maríanna; Birgisdottir, Bryndis Eva; Harris, Tamara B.; Launer, Lenore J.; Gudnason, Vilmundur; Steingrimsdottir, Laufey (Public Library of Science (PLoS), 2018-05-30)
    Recent studies indicate that lifestyle factors in early life affect breast cancer risk. We therefore explored the association of high consumption of meat, milk, and whole grain products in adolescence and midlife, on breast cancer risk. We used data ...
  • Pervishko, Anastasiia A.; Yudin, Dmitry; Shelykh, Ivan (American Physical Society (APS), 2018-02-16)
    Lowering of the thickness of a thin-film three-dimensional topological insulator down to a few nanometers results in the gap opening in the spectrum of topologically protected two-dimensional surface states. This phenomenon, which is referred to as the ...
  • Kozin, Valerii; Iorsh, Ivan; Kibis, Oleg; Shelykh, Ivan (American Physical Society (APS), 2018-04-26)
    We developed the theory of electronic properties of semiconductor quantum rings with the Rashba spin-orbit interaction irradiated by an off-resonant high-frequency electromagnetic field (dressing field). Within the Floquet theory of periodically driven ...
  • Marques, Y.; Yudin, D.; Shelykh, Ivan; Seridonio, A. C. (American Physical Society (APS), 2018-06-12)
    Recently, it was shown both theoretically and experimentally that certain three-dimensional (3D) materials have Dirac points in the Brillouin zone, thus being 3D analogs of graphene. Moreover, it was suggested that under specific conditions a pair of ...
  • Olafsdottir, Steingerdur; Berg, Christina (Cambridge University Press (CUP), 2017-08-29)
    Objective: Exposure to advertisements cannot fully explain the associations between young children’s dietary intake and the time they spend in front of the television. It is therefore of importance to study television content other than advertisements ...
  • Kozin, Valerii; Shelykh, Ivan; Nalitov, Anton; Iorsh, Ivan (American Physical Society (APS), 2018-09-10)
    The Chern insulator phase is shown to emerge in two-dimensional arrays of polariton rings where time-reversal symmetry is broken due to the application of an out-of-plane magnetic field. The interplay of Zeeman splitting with the photonic analog of ...
  • Marques, Y.; Obispo, A. E.; Ricco, L. S.; de Souza, M.; Shelykh, Ivan; Seridonio, A. C (American Physical Society (APS), 2017-07-11)
    The ground state of the diatomic molecules in nature is inevitably bonding, and its first excited state is antibonding. We demonstrate theoretically that, for a pair of distant adatoms placed buried in three-dimensional-Dirac semimetals, this natural ...
  • Kozin, Valerii; Iorsh, Ivan; Kibis, Oleg; Shelykh, Ivan (American Physical Society (APS), 2018-01-11)
    We demonstrate theoretically that a strong high-frequency circularly polarized electromagnetic field can turn a two-dimensional periodic array of interconnected quantum rings into a topological insulator. The elaborated approach is applicable to calculate ...
  • Sævarsson, Elvar Smári; Svansdottir, Erla; Sveinsson, Thorarinn; Asgeirsdottir, Tinna Laufey; Arngrímsson, Sigurbjörn Árni; Johannsson, Erlingur (SAGE Publications, 2017-06-30)
    Aims: The aims of this study were to study the correlation between lifestyle-related factors, such as organized leisure-time sport participation (OLSP), cardiorespiratory fitness, and adiposity, and academic achievement among preadolescents. Methods: ...
  • Morina, Skender; Dini, Kevin Tanguy Elian; Iorsh, Ivan; Shelykh, Ivan (American Chemical Society (ACS), 2018-02-12)
    We propose an experimentally friendly scheme for trapping quasi-relativistic electrons in graphene by an electromagnetic beam with circular polarization and a spatially inhomogeneous profile with an intensity dip. The trapping is achieved due to the ...
  • Eiriksdottir, Elsa (The Educational Research Institute, 2017-12-22)
    Markmið rannsóknarinnar var að skoða hvernig nám í tvískiptu kerfi löggiltra iðngreina fer fram á Íslandi, nánar tiltekið hvort samfella sé í skipulagi námsins og samhengi milli námsins í skóla og á vinnustað. Tekin voru viðtöl við sveina, kennara ...
  • Iorsh, Ivan; Dini, Kevin Tanguy Elian; Kibis, Oleg; Shelykh, Ivan (American Physical Society (APS), 2017-10-11)
    It is shown theoretically that the renormalization of the electron energy spectrum of bilayer graphene with a strong high-frequency electromagnetic field (dressing field) results in the Lifshitz transition—the abrupt change in the topology of the Fermi ...
  • Shahnazaryan, Vanik; Iorsh, Ivan; Shelykh, Ivan; Kyriienko, O. (American Physical Society (APS), 2017-09-06)
    We study theoretically the Coulomb interaction between excitons in transition metal dichalcogenide (TMD) monolayers. We calculate direct and exchange interaction for both ground and excited states of excitons. The screening of the Coulomb interaction, ...
  • Kibis, Oleg; Dini, Kevin Tanguy Elian; Iorsh, Ivan; Shelykh, Ivan (American Physical Society (APS), 2017-03-01)
    We demonstrate theoretically that the interaction of electrons in gapped Dirac materials (gapped graphene and transition-metal dichalchogenide monolayers) with a strong off-resonant electromagnetic field (dressing field) substantially renormalizes the ...
  • Bjarnason, Ingi Þorleifur; Einarsson, Páll (American Geophysical Union (AGU), 1991-03-10)
    The May 25, 1987, Vatnafjöll earthquake occurred on the Mid‐Atlantic plate boundary, at a junction between a transform (the South Iceland Seismic Zone) and a spreading segment (the Eastern Volcanic Zone). The South Iceland Seismic Zone has had the most ...