Fletta eftir titli

Röðun: Raða: Niðurstöður:

  • Edmunds, Kyle; Gíslason, Magnús; Sigurðsson, Sigurður; Gudnason, Vilmundur; Harris, Tamara; Carraro, Ugo; Gargiulo, Paolo (Public Library of Science (PLoS), 2018-03-07)
    Sarcopenic muscular degeneration has been consistently identified as an independent risk factor for mortality in aging populations. Recent investigations have realized the quantitative potential of computed tomography (CT) image analysis to describe ...
  • Sigmundsson, Hermundur; Lorås, Håvard; Haga, Monika (SAGE Publications, 2016-01-25)
    The life span approach to development provides a theoretical framework to examine the general principles of development across all ages (Baltes, Lindenberger, & Staudinger, 2006; Craik & Bialystok, 2006). Previously, developmental research has typically ...
  • Magnússon, Guðmundur; Ólafsson, Sverrir (Viðskiptafræðideild og hagfræðideild Háskóla Íslands, viðskiptafræðideild Háskólans í Reykjavík og Seðlabanki Íslands, 2017-12-19)
    In conventional portfolio management returns are maximised subject to given risk levels. In this framework the only variables of relevance are risk and returns and their interrelationship as expressed in terms of the efficient frontier. It is increasingly ...
  • Ansker, F. G.; Helgason, Asgeir R.; Ahacic, Kozma (Oxford University Press (OUP), 2014-02-24)
    Background: Fundamental to supporting hazardous alcohol users are the rationales for reducing alcohol intake highlighted by the users themselves. This study analyses the relative importance of beliefs about pros and cons of drinking in relation to ...
  • Young, Susan; Khondoker, Mizanur; Emilsson, B.; Sigurdsson, Jon Fridrik; Philipp-Wiegmann, F.; Baldursson, G.; Olafsdottir, H.; Gudjonsson, G. (Cambridge University Press (CUP), 2015-05-29)
    Background. Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by high rates of co-morbid psychopathology. Randomized controlled trials of multimodal interventions, combining pharmacological and psychological ...
  • Gudmundsson, Vidar; Manolescu, Andrei; Nemnes, George Alexandru; Sitek, Anna; Erlingsson, Sigurdur; Rosdahl, Tómas (American Physical Society (APS), 2016-05-31)
    We analyze theoretically electronic transport through a core-shell nanowire in the presence of a transversal magnetic field. We calculate the conductance for a variable coupling between the nanowire and the attached leads and show how the snaking ...
  • Friðgeirsson, Þórður Víkingur; Steindórsdóttir, Freydís Dögg (Viðskiptafræðideild og hagfræðideild Háskóla Íslands, viðskiptafræðideild Háskólans í Reykjavík og Seðlabanki Íslands, 2018-06-25)
    Previous studies have identified eight parameters as being the most influential on the Icelandic economy in the light of prevailing climate change. This study aims to investigate these economic parameters in relation to the Arctic Region and the Icelandic ...
  • Skulason, Bragi; Hauksdottir, Arna; Ahcic, Kozma; Helgason, Asgeir R. (BMC, 2014-03-11)
    Background: According to common practice based on a generally agreed interpretation of Icelandic law on the rights of patients, health care professionals cannot discuss prognosis and treatment with a patient’s family without that patient’s consent. ...
  • Widmer Soyka, René P.; Helgason, Benedikt; Hazrati Marangalou, Javad; van den Bergh, Joop P.; Rietbergen, Bert van; Ferguson, Stephen J. (Public Library of Science (PLoS), 2016-04-21)
    Vertebral fragility fractures are often treated by injecting bone cement into the collapsed vertebral bodies (vertebroplasty). The mechanisms by which vertebroplasty induces pain relief are not completely understood yet and recent debates cast doubt ...
  • Nohlert, Eva; Öhrvik, John; Helgason, Asgeir R. (Biomed Central LTD, 2014-06-03)
    Abstract Background: The Swedish National Tobacco Quitline (SNTQ), which has both a proactive and a reactive service, has successfully provided tobacco cessation support since 1998. As there is a demand for an increase in national cessation support, ...
  • Bordbar, Aarash; Yurkovich, James T.; Paglia, Giuseppe; Rolfsson, Óttar; Sigurjónsson, Ólafur E.; Palsson, Bernhard O. (Springer Nature, 2017-04-07)
    The increasing availability of metabolomics data necessitates novel methods for deeper data analysis and interpretation. We present a flux balance analysis method that allows for the computation of dynamic intracellular metabolic changes at the cellular ...
  • Bean, Christian; Claesson, Anders; Úlfarsson, Henning Arnór (University of Waterloo, 2017)
    Vincular and covincular patterns are generalizations of classical patterns allowing restrictions on the indices and values of the occurrences in a permutation. In this paper we study the integer sequences arising as the enumerations of permutations ...
  • Guðlaugsson, Karl; Jensson, Páll (Tannlæknafélag Íslands, 2015)
    Í meistararitgerð í meistaranámi í verkefnastjórnun, MPM, við Háskólann í Reykjavík, var lögð fram rannsóknarspurningin „Er hægt að verðmeta tannlæknapraxís“. Verðmati á tannlækna-praxís er skipt í hlutlæga þætti og huglæga þætti. Helstu hlutlægu þættirnir ...
  • Kristjansson, Alfgeir; Sigfúsdóttir, Inga Dóra (BioMed Central, 2015-04-30)
    Electronic cigarette (EC) use is currently subject to a debate concerning safety, regulation need, and probable contribution to smoking cessation. An important gap in this debate is the lack of distinction between minors and adults. This is problematic ...
  • Sitek, Anna; Urbaneja Torres, Miguel; Torfason, Kristinn; Gudmundsson, Vidar; Bertoni, Andrea; Manolescu, Andrei (American Chemical Society, 2018-04-21)
    The distinctive prismatic geometry of semiconductor core-shell nanowires leads to complex localization patterns of carriers. Here, we describe the formation of optically active in-gap excitonic states induced by the interplay between localization of ...
  • Einarsdottir, Arney; Olafsdottir, Katrin; Arnardóttir, Auður Arna (Stofnun stjórnsýslufræða og stjórnmála, Háskóli Íslands, 2011-12)
    Fyrirtæki og stofnanir þurfa að laga sig að breyttum aðstæðum þegar þjóðar - búskapurinn verður fyrir skyndilegu áfalli eins og raunin varð á Íslandi haustið 2008. Margt bendir til þess að skipulagsheildir beiti gjarnan uppsögnum ...
  • Olafsdottir, Katrin (Viðskiptafræðideild og hagfræðideild Háskóla Íslands, viðskiptafræðideild Háskólans í Reykjavík og Seðlabanki Íslands, 2018-06-25)
    While half of undergraduate students in business are women, only one in five full professors in business in the US are female. According to the pipeline theory, this discrepancy should correct itself through time and more women join the ranks of full ...
  • Cameron, Gemma; Schlund, Michael W.; Dymond, Simon (Frontiers Media SA, 2015-06-18)
    Excessive avoidance behavior, in which an instrumental action prevents an upcoming aversive event, is a defining feature of anxiety disorders. Left unchecked, both fear and avoidance of potentially threatening stimuli may generalize to perceptually ...
  • Vaiman, Vlad; Mixa, Már Wolfgang (Institute of Public Administration and Politics, 2015-12-17)
    Icelandic culture has generally been considered to share many similarities to the Nordic cultures. However, the financial crisis in 2008 painted a completely different picture, with the Nordic nations faring much less worse than Iceland, which saw ...
  • Sitek, Anna; Ţolea, Mugurel; Niţă, Marian; Serra, Llorenç; Gudmundsson, Vidar; Manolescu, Andrei (Springer Nature, 2017-01-10)
    We study Coulomb interacting electrons confined in polygonal quantum rings. We focus on the interplay of localization at the polygon corners and Coulomb repulsion. Remarkably, the Coulomb repulsion allows the formation of in-gap states, i.e., ...


Fletta

Um vefinn

Reikningurinn minn