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Doktorsritgerðir- HÍ
Doctoral dissertations
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2024-09)Battling climate change and rising temperatures is a major task of this century. To achieve current climate goals the large-scale removal of carbon dioxide from the atmosphere is needed. Enhanced Rock Weathering ERW is one of the most promising methods ... -
(University of Iceland, School of Health Sciences, Faculty of Medicine, 2024-04)Establishment of melanocytes, the pigment-producing cells, starts from the multipotent neural crest cells. Melanoblasts, the melanocyte precursor cells, follow a tight schedule during their development requiring proliferation, migration, and invasion ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Industrial Eng., Mechanical Eng. and Computer Science, 2024-06)The global climate crisis poses one of the most pressing challenges of our time, affecting diverse sectors and demanding urgent attention from scientists, policymakers, and stakeholders. Addressing the multifaceted environmental, political, societal, ...
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(University of Iceland, School of Education, Faculty of Health Promotion, Sport and Leisure Studies, 2024-10)Background: Relative Energy Deficiency in Sport (REDs) describes various health and performance complications of problematic low energy availability (LEA). Sex and sport-specific aetiology and risk factors, in addition to the degree of LEA resulting ...
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(University of Iceland, School ef Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2024-08)Atlantshafs laxinn dvelur fyrstu ár lífsferils síns í straumvatni, en hverfur síðan til sjávar þar sem hann dvelur í 1 – 2 ár uns hann kemur aftur í uppeldisána sína. Líkt og fyrir allar lífverur er framboð á fæðu einn af mikilvægustu þáttum fyrir ...
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(University of Iceland, School of Social Sciences, Faculty of Economics, 2023-03-27)Dishonesty and distrust are serious social and economic challenges facing societies with billions of US dollars lost each year due to income-tax evasion, insurance fraud, and substantial monitoring costs. The overarching aim of this thesis was ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2024)For their sensitivity to environmental variables, their impact on early developmental processes and their importance to the establishment of multiple phenotypes, epigenetic mechanisms have been increasingly studied during the last decades. Like ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2024-06-27)This thesis explores two topics in three-dimensional gravity, the $\ttb$ deformation and zeta functions of three-dimensional quotient manifolds. The $\ttb$ deformation is an irrelevant deformation of a two-dimensional translationally invariant ...
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(University of Iceland, School of Humanities, Faculty of Icelandic and Comparative Cultural Studies, 2024)The current thesis presents three published articles on inflectional change in Insular Nordic (Icelandic and Faroese). Papers I and II deal with change in Icelandic, while Paper III focuses on Faroese. The three articles are related through employment ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2024-06)The ΛCDM model is the most widely accepted model of cosmological structure formation and evolution. It includes a form of Cold Dark Matter (CDM), which is non-quantum, nonrelativistic and collisionless. It settles into extended and dense self-gravitating ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2024-06)The colonisation of a forest-forming tree species into an early successional environment, following long-distance dispersal, presents a unique opportunity to study the dynamics of a founder population in a setting that differs from its origin. This ...
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(University of Iceland, School of Education, 2021-12)This dissertation contributes to discussion about inclusive education and social justice. Inclusive education is the official school policy in Iceland which was legislated in 2008. Regardless of that, students with intellectual disabilities are not ...
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(University of Iceland, School of Health Sciences, Faculty of Medicine, 2024-05-31)Exposure to adverse childhood experiences (ACEs), including abuse, neglect and growing up in dysfunctional home environments, has consistently been associated with an elevated risk of multiple negative mental health outcomes extending into adulthood. Yet, ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2024-05)In recent years seaweed has gained popularity as a health food due to its high content of minerals and vitamins. However, seaweeds may also accumulate high levels of potentially toxic elements – in particular arsenic, which may become incorporated ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2024-05)Population numbers result from the combined effect of exogenous (weather, food, predation, anthropogenic impact) and endogenous (behaviour, density) factors on the population, which often act simultaneously resulting in spatial variation in population ...
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(University of Iceland, School of Health Sciences, Faculty of Nursing and Midwifery, 2024-05-23)As the global population ages, the prevalence of dementia is on the rise, making it a reality for many families worldwide to care for a relative living with dementia at home. It is generally acknowledged globally that providing care for a person living ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2024-05-24)Vanadium sesquioxide, typified by its first-order metal-insulator transi- tion, structural phase transition, and magnetic changes, transition from a high-temperature rhombohedral metallic and paramagnetic state to a low- temperature insulating monoclinic ...
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(University of Iceland, School of Humanities, Faculty of Icelandic and Comparative Cultural Studies, 2024-05-07)[Íslenska] Í þessari doktorsritgerð er reynt að svara eftirfarandi rannsóknarspurningu: Hvernig hefur nábýli Íslendinga við eldfjöll mótað sjálfsmynd þeirra og hugmyndir um þjóðerni og sögu síðustu 250 árin? Markmið verkefnisins var að finna svar við ...
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(University of Iceland, School of Engineering and Natural Sciences, Faculty of Industrial Eng., Mechanical Eng. and Computer Science, 2024-05-07)Loftlagsbreytingar af völdum gróðurhúsaáhrifa stefna sjálfbærni jarðar í hættu. Mikilvægi þess að draga úr losun kolefnis er drifkrafturinn í þróun á aðferðum við bindingu kolefnis með þörungum. Mikill áhugi er á að binda kolefni í afgasi frá iðnaði ...
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(University of Iceland, School of Health Sciences, Faculty of Food Science and Nutrition, 2024-01-18)Background: Malnutrition, or the risk of being malnourished, is a common problem that affects many older adults. This condition is highly prevalent among hospitalised older adults. Because hospital stays are short and screening for nutritional risk ...