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Doktorsritgerðir- HÍ: Recent submissions
Now showing items 261-280 of 474
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(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 ... -
(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 ...
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(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 ...
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(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 ...
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(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 ...
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Unraveling the mechanism of DNA methylation regulation during early embryo epigenetic reprogramming (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 ...
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(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 ...
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(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 ...
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(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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(University of Iceland, School of Health Sciences, Faculty of Pharmaceutical Sciences, 2020-11)Background: Age-related macular degeneration (AMD) causes vision loss in elderly people due to neovascularization. The first line treatments are intravitreal injections which can induce severe pain. Oral administration still produces side effects. ...
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(University of Iceland, School of Education, Faculty of Education and Diversity, 2020-11)The influx of refugees and immigrants into Iceland continues to affect the society socially, culturally, and politically. Like many other European countries, Iceland has become home to many refugees and immigrants, including young adults. This influx ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, 2020-10-22)The main target of this thesis is to use density functional theory-based simulations to study electrochemical CO2 and N2 reductions by employing a recent theoretical model of an electrochemical solid-liquid interface. This model is used to investigate ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2020-11)In recent years, the study of entanglement properties of quantum field theories has led to deep insights in fields as diverse as quantum gravity and condensed matter physics. Originating as effective field theories for certain quantum dimer models, the ...
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(University of Iceland, School of Health Sciences, Faculty of Pharmaceutical Sciences, 2020-10-26)Ocular drug delivery is very challenging due to the anatomical and physiological barriers of the eye. Poor aqueous solubility of many drugs and short retention time at ocular surfaces makes the formulation of topical dosage forms even more challenging. ...
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(Háskóli Íslands, Hugvísindasvið, Mála- og menningardeild, 2020-10-26)Þessi doktorsritgerð er hluti af verkefninu Icelandic Language and Culture Training in Virtual Reykjavik, þrívíddartölvuleik sem gerir þeim sem eru að læra íslensku sem annað mál kleift að æfa tal og hlustun. Markmið verkefnisins var að búa til ...
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(University of Iceland, School of Humanities, Faculty of Icelandic and Comparative Cultural Studies, 2020-11)Guðmundur Erlendsson of Fell in Sléttuhlíð (c. 1595–1670) was one of the leading poets of seventeenth-century Iceland. No man is an island, however, nor are islands populated exclusively by men. The thesis examines how Guðmundur Erlendsson’s poetry and ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2020-10)Climate change constitutes one of the most pressing challenges faced by tourism today. Tourism research on climate-induced environmental changes has contributed to an increase in knowledge about adaptation during the last decade. Despite a general ...
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(Háskóli Íslands, Hugvísindasvið, Íslensku- og menningardeild, 2019-09)Rannsóknin fjallar um bandaríska ljóðskáldið Emily Dickinson (1830–1886), með áherslu á túlkun og viðtökur ljóða hennar á síðari tímum, bæði erlendis sem og á Íslandi. Ritgerðin er þverfræðileg, á mörkum bókmenntafræði, þýðingafræði og ritlistar. ...
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(Háskóli Íslands, 2020-10)Variation in morphology of shelled marine gastropods across small spatial scales may reflect restricted population connectivity, resulting in evolutionary or plastic responses to environmental heterogeneity. Species delimitation of shelled gastropods ...
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(University of Iceland, School of Social Sciences, Faculty of Business Administration, 2020-10)Flestir fiskistofnar heims eru nýttir að fullu eða ofveiddir. Ofnýting hefur í för með sér slæmar vistfræðilegar, hagrænar og félagslegar afleiðingar. Minna er hægt að veiða úr ofveiddum stofnum og hætta getur verið á hruni þeirra. Og af því að þeir ...
Now showing items 261-280 of 474