Opin vísindi

Browsing Doktorsritgerðir- HÍ by Title

Browsing Doktorsritgerðir- HÍ by Title

Sort by: Order: Results:

  • Basil, Sheeba Santhini (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2018)
    Lichens are a classic example of mutualism, where both partners benefit from each other. The mycobiont serves the photobiont by providing shelter, nutrients, and moisture from the environment and receives carbohydrates and sometimes fixed nitrogen from ...
  • Guðnason, Jónas (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2017-07-12)
    Iceland is one of the most volcanically active terrestrial regions on Earth. Hazards posed from volcanic eruptions to local population and life stock is well known in Iceland and the wider effects from volcanic activity have been elevated in recent ...
  • Kokorsch, Matthias (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2018-06)
    Designing a truly sustainable fisheries management regime has been a challenge internationally. Iceland is not an exception in this regard. Icelandic fisheries and their management has gone through tremendous changes since the 1980s. The implementation ...
  • Belart, Joaquín M. C. (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2018-11-29)
    The mass balance of a glacier is strongly connected to climate. At high latitudes, mass balance is typically controlled by snow accumulation during the winter and the glacier ablation during the summer. In Iceland, direct mass balance observations ...
  • Eiríksdóttir, Védís Helga (University of Iceland, School of Health Sciences, Faculty of Medcine, 2016-11)
    Background and aims: Macroeconomic fluctuations have shown various effects on population health, but the evidence base for their influence on maternal health and birth outcomes is scarce and inconclusive. The overall aim of this thesis was to examine ...
  • Anderson, Kimberley (University of Iceland, School of Health Sciences, Faculty of Medicine, 2019-04)
    Transcriptional regulatory mechanisms drive the maturation of B cells to plasma cells, with a dramatic transcriptional rewiring taking place during the transition. This rewiring is dependent on a number of factors, including the transcription factor B ...
  • Juhl, Michael (University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2018-10)
    The polarization of electromagnetic waves (the direction of transversal vibration of its electric field vector) provides essential information about the emitting sources and scattering objects. Its measurement, i.e., optical polarimetry, has a history ...
  • Snæbjörnsdóttir, Sandra Ósk (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2017-04-19)
    In-situ carbonation of basaltic rocks could provide a carbon storage solution for the long term. Permanence is essential for the success and public acceptance of carbon storage. The aim of this study was twofold, to evaluate and make a first estimate ...
  • Clark, Deirdre (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2019-10-23)
    The reduction of carbon dioxide (CO2) emissions in the atmosphere is currently one of the main challenges facing humanity. One solution is carbon capture from concentrated sources and directly from the atmosphere, and long term storage in rocks. Basaltic ...
  • Neely, Rebecca Anna (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2017)
    Molybdenum isotopes are used to quantify changes in Earth’s paleoredox conditions but their application relies upon a simplified model in which rivers dominate the ocean input with minor contributions from hydrothermal fluids. The effect of groundwater ...
  • Tómasdóttir, Margrét Ólafía (NTNU Grafisk senter; University of Iceland, 2017-12-07)
    Bakgrunnur: Þegar sami einstaklingur þjáist af tveimur eða fleirum langvinnum sjúkdómum er það kallað fjölveikindi (e.multimorbidity). Á undanförnum árum hefur rannsóknum á fjölveikindum fleygt fram og algengi þeirra verið metið svo mikið að fjölveikindi ...
  • Hafliðason, Arnar (University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2018-12)
    The research focused on multiphoton dynamics and fragment formation for HBr, DCl, and bromomethanes, using mass resolved multiphoton ionization (MR-MPI) and velocity map imaging (VMI) techniques. Data interpretations were based on analysis of (2+n)REMPI ...
  • Kristmundsson, Árni (University of Iceland, School of Engineering and Natural Sciences, Faculty of Life and Environmental Sciences, 2018-10-30)
    Apicomplexans comprise a group of unicellular, often highly pathogenic, obligate parasites infecting both vertebrates and invertebrates, exploiting either one (monoxenous) or two hosts (heteroxenous) to complete a full reproductive life cycle. Their ...
  • Ballesteros Álvarez, Josué A (University of Iceland, School of Health Sciences, Faculty of Medicine, 2019-01-10)
    The MITF, TFEB, TFE3 and TFEC (MiT-TFE) proteins belong to a larger family of basic helix-loop-helix leucine zipper transcription factors that are able to bind DNA and regulate gene expression. MITF is crucial for melanocyte development and has been ...
  • Emilsson, Össur Ingi (University of Iceland, School of Health Sciences, Faculty of Medicine, 2016-10)
    Introduction: Nocturnal gastroesophageal reflux (nGER) is associated with respiratory symptoms and sleep-disordered breathing (SDB), but a causal relationship has not been established. The aim of this project was to investigate the association between ...
  • Skúlason Kaldal, Gunnar (University of Iceland, School of Engineering and Natural Sciences, Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, 2019-05-20)
    High-temperature geothermal wells are drilled in stages and constructed of several concentric steel casings that are cemented over their entire external surface for sealing and structural support purposes. The structural integrity of such casings is ...
  • Abghoui, Younes (University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences., 2017-03-13)
    Commercial design of a sustainable route for on-site production of ammo- nia represents a potential economic and environmental breakthrough. In an analogous process to the naturally occurring enzymatic mechanism, synthe- sis of ammonia could be achieved ...
  • Þórðardóttir, Maríanna (University of Iceland, School of Health Sciences, Faculty of Medicine, 2019-02)
    Background and aim: Multiple myeloma is a malignant chronic B-cell disorder characterized by a monoclonal proliferation of plasma cells in the bone marrow. Almost all multiple myeloma cases are preceded by the premalignant state, monoclonal gammopathy ...
  • Tirosh, Yoav (University of Iceland, School of Humanities, Faculty of Icelandic and Comparative Cultural Studies, 2019-10)
    Ljósvetninga saga takes place in Northern Iceland during the tenth and eleventh centuries and focuses on the political maneuverings of the chieftain Guðmundr inn ríki Eyjólfsson and his son Eyjólfr. Most of the academic debate surrounding Ljósvetninga ...
  • Dini, Kevin Tanguy Elian (University of Iceland, School of Engineering and Natural Sciences, Faculty of Physical Sciences, 2018)
    Light matter coupling is a eld that has rapidly grown in the past decades to become one of the most important interdisciplinary research subject. It combines the phenomena of condensed matter and quantum optics and brings a new panel of unique e ects. ...