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Doktorsritgerðir- HÍ

Doktorsritgerðir- HÍ

Doctoral dissertations
 

Recent Submissions

  • Nedelciu, Claudiu (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2021-02)
    Phosphorus is an essential yet irreplaceable macronutrient for agriculture and thus plays a key role in global food security. Most of the phosphate fertilizers are produced from phosphate rock, a finite mineral resource that is mined and processed at ...
  • Gunnlaugsson, Stefan (University of Iceland, School of Social Science, Faculty of Business Administration, 2021-02-17)
    In 1990, Iceland introduced a uniform individual transferable quota system (ITQ) to manage almost all of the nation’s fisheries. The development of Iceland’s fisheries under this management system were examined in the five articles this thesis consists ...
  • Vidarsdottir, Harpa (University of Iceland, School of Health Sciences, Faculty of Medicine, 2021)
    Markmið: Að kanna áhættuþætti fyrir fæðingu mikilla þungbura (fæðingarþyngd ≥5000 g) og hugsanlegar afleiðingar þess fyrir móður og barn (grein 1). Að meta efnaskipti mikilla þungbura með því að skoða mynstur þeirra amínósýra og acylkarnitína sem mæld ...
  • Barry, Tom (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2021-01-28)
    The geo-political importance of the Arctic is growing while at the same time the onset of climate change has resulted in increasing environmental and social pressures both on Arctic states and the governance architecture through which Arctic issues ...
  • Caracciolo, Alberto (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2021-02)
    The physico-chemical properties of magma storage reservoirs in multi-level magmatic systems may change with time, along with the timescales at which crystals and melts are processed throughout the crust. In this thesis, I use an integrated approach ...
  • Quintana Cocolina, Carmen (University of Iceland, School of Humanities, Faculty of Languages and Cultures, 2021-01)
    Spanish author C. Martín Gaite developed a number of theories on communication and the interlocutor in her essays and articles, that she put in practice in her narrative work through author-reader and characters communicative interaction. This study ...
  • Rasmussen, Maja Bar (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2021-01)
    The extent of compositional and lithological heterogeneity in Earth’s convecting mantle, caused by the recycling of oceanic and continental lithosphere, has long been a subject of interest to geochemists and geophysicists. A fundamental outstanding ...
  • Jonasson, Jonas Pall (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2021-01)
    The marine ecosystem around Iceland is shaped by its position in one of the most hydrographically complicated regions of the North Atlantic. The response of marine populations to those diverse conditions is expected to be different across taxonomically ...
  • Myszor, Iwona Teresa (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2021-02)
    Innate immunity of the lung epithelium provides efficient defenses against pathogens or other stress factors by secretion of antimicrobial peptides, presence of cellular junction proteins and autophagy. Upon activation through epithelial cell receptors ...
  • Ívarsdóttir, Erna Valdís (University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2020-11)
    The aim of genome-wide association studies (GWAS) is to identify sequence variants that influence human traits or diseases. Previous GWAS have mostly focused on finding variants that affect the mean of a trait or disease risk under an additive model. ...
  • Kalliokoski, Maarit (University of Turku; University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2020-11-13)
    Tephrochronology is a high-precision dating method that uses volcanic ash horizons as isochrons in correlating and dating geological records and archaeological sites. First developed in the volcanic regions of the world, tephrochronology has expanded ...
  • Vidarsdottir, Olina (University of Iceland, school of health sciences, faculty of medicine, 2020-09)
    Background: Cognitive impairment is a core feature at all stages of the psychotic illness and significantly predicts functional outcomes. Targeting cognition early is theoretically attractive as a means to reverse the functional impairment before ...
  • Mandal, Sucharita (University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2020-12-15)
    Dynamic nuclear polarization (DNP) has emerged as an important technique to enhance the signal intensity of nuclear magnetic resonance (NMR) spectroscopy by transferring spin polarization from unpaired electrons to nuclei of interest. Persistent organic ...
  • Gunnarsdóttir, Ingunn (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2020-12)
    Sustainable energy development is a cross-cutting policy objective with the ultimate aim of a sustainable energy future. However, what that future involves and how it can be reached is unclear. The aim of this PhD thesis is to address the question ...
  • Sigurdardottir, Thorgerdur (University of Iceland, School of Health Sciences, Faculty of Medicine, 2020-12-14)
    Markmið: Meginmarkmið þessa doktorsverkefnis var að kanna tíðni grindarbotnseinkenna og vanlíðunar sem þau valda frumbyrjum á fyrstu mánuðum eftir fæðingu, ásamt því að rannsaka hvort tengsl findust milli grindarbotnseinkennanna og fæðingartengdra ...
  • Butler, William (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2020-12)
    The population dynamics of marine fish are driven by many top-down and bottom-up processes operating across multiple life-history stages. The majority of teleosts produce large quantities of offspring which experience high mortality rates early in ...
  • Grétarsson, Kristján Hólm (University of Iceland, School of Health Sciences, Faculty of Medicine, 2020-12)
    Umframerfðastjórnprótein taka þátt í að stjórna mismunandi genatjáningu og koma þannig up sérhæfðu umframerfðamengi í frumum sem allar hafa sama erfðamengið. Það er mikilvægt að skilja hvernig umframerfðamerkjum er stjórnað snemma í fósturþroskun ...
  • Morera, Erika (University of Iceland, School of Health Sciences, Faculty of Medicine, 2020-12-02)
    Epithelial to mesenchymal transition (EMT) is a developmental trait that is hijacked in some disease conditions such as fibrosis and cancer. In cancer, EMT has been linked to increased invasion and metastasis, and is generally associated with a poor ...
  • Ólafsdóttir, Inga María (University of Iceland, School of Health Sciences, Faculty of Psychology, 2020-11)
    Visual attention has traditionally been studied with single-target search tasks where observers look for a single target and make a response, then the search is over and the trial ends. These studies have furthered our knowledge of visual attention ...
  • Gladkykh, Ganna (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2020-11)
    This PhD thesis explores what can be considered a sustainable energy system on a global scale and what methods and tools can help sustainable energy policy design and assessment. Energy system modelling and sustainable energy system narratives are the ...

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