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Browsing Háskólinn í Reykjavík by School "Tækni- og verkfræðideild (HR)"

Browsing Háskólinn í Reykjavík by School "Tækni- og verkfræðideild (HR)"

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  • 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 ...
  • Guðjónsdóttir, María Sigríður (2016-01)
    Liquid dominated reservoirs are a common type of hydrothermal reservoirs. They consist of fractured rock and reservoir fluid which may obey Darcy’s law. Steam can form in such reservoirs either through heat input which causes temperature increase or ...
  • 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 ...
  • Magnúsdóttir, Eydís Huld (2019-02)
    Monitoring cognitive workload has the potential to improve both performance and fidelity of individuals facing safety-critical situations in their working environments. Psychophysiological signals, in particular from speech and the cardiovascular system, ...
  • Edmunds, Kyle Joseph (2017-06)
    The growing field of translational myology continually seeks to define and promote the generalizability of muscle research to clinical practice via optimizing the transition of a wide variety of investigative muscle assessment modalities. There are ...
  • 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 ...
  • 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 ...
  • Vargas Luna, José Luis; Guðfinnsdóttir, Halla K.; Magnúsdóttir, Gígja; Guðmundsdóttir, Vilborg; Krenn, Matthias; Mayr, Winfried; Ludvigsdóttir, Guðbjörg K.; Helgason, Þórður (Walter de Gruyter GmbH, 2016-09-30)
    Neuromodulation using electrical stimulation is able to enhance motor control of individuals suffering an upper motor neuron disorder. This work examined the effect of sustained electrical stimulation to modify spasticity in the leg muscles. We applied ...
  • 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 ...
  • 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 ...
  • 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 ...
  • Iordache, Paul (2019-02)
    In Romania, there is a lack of quantitative data associating cancer risk with genetic characteristics. The aim of this thesis is to evaluate genetic risk factors associated with two major cancer types, prostate cancer and colorectal cancer. The first ...
  • Muhammad Aziz Ul Haq (Reykjavik University, School of Science and Engineering, 2019-05-17)
    Maintaining small physical dimensions of antenna structures is an important consideration for contemporary wireless communication systems. Typically, antenna miniaturization is achieved through various topological modifications of the basic antenna ...
  • Meirbekova, Rauan (2016-02)
    Current efficiency loss in aluminum electrolysis happens due to a variety of factors. One such factor is the presence of impurities. Concerns about impurities have been voiced since the quality of raw materials has declined and dry-scrubbers were ...
  • 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., ...
  • Bjarnadóttir, María Rún; Magnússon, Bjarni Már; Kristjansdottir, Hafrún; Guðmundsdóttir, Margrét Lilja (Stofnun stjórnsýslufræða og stjórnmála við Háskóla Íslands, 2018-06-20)
    Í greininni er lagalegt umhverfi íþrótta á Íslandi kannað með hliðsjón af kynjajafnréttissjónarmiðum með hinni fræðilegu lagalegu aðferð (e. doctrinal method). Þannig eru skoðuð sjónarmið sem legið hafa til grundvallar lagasetningu um íþróttir, ...
  • Halldórsson, Bjarni; Ottesen, Oddgeir Á.; Stefánsdóttir, Stefanía H. (Viðskiptafræðideild og hagfræðideild Háskóla Íslands, viðskiptafræðideild Háskólans í Reykjavík og Seðlabanki Íslands., 2011)
    Staðgöngubjagi stafar af því að neysluhegðun breytist frá þeim tíma sem líður frá því að vogir neyslukörfu eru metnar og fram að notkun hennar við verðbólgumælingu. Neyslukannanir sem liggja til grundvallar mati á vogum 2/3 hluta neyslukörfunnar eru ...
  • Visan, Camelia; Anghel, D. V.; Nemnes, George Alexandru; Manolescu, Andrei (IOP Publishing, 2016-08)
    The hybrid graphene - hexagonal boron nitride (G-hBN) systems offer new routes in the design of nanoscale electronic devices. Using ab initio density functional theory calculations we investigate the dynamics of zig-zag nanoribbons a few interatomic ...