Háskóli Íslands: Síðast bætt við

  • Saviolidis, Nína M.; Olafsdottir, Gudrun; Nicolau, Mariana; Samoggia, Antonella; Huber, Elise; Brimont, Laura; Gorton, Matthew; von Berlepsch, David; Sigurdardottir, Hildigunnur; Del Prete, Margherita; Fedato, Cristina; Aubert, Pierre-Marie; Bogason, Sigurður G. (MDPI AG, 2020-09-02)
    Transitioning agri-food systems towards increased sustainability and resilience requires that attention be paid to sustainable food consumption policies. Policy-making processes often require the engagement and acceptance of key stakeholders. This study ...
  • Gudbrandsdottir, Ingunn Yr; Olafsdottir, Gudrun; Oddsson, Gudmundur V.; Stefánsson, Hlynur; Bogason, Sigurður G. (MDPI AG, 2021-01-08)
    Fairness issues within food systems are of increasing concern for policy makers and other stakeholders. Given the topicality and policy relevance of fairness within food systems, there is value in exploring the subject further. Simulation modelling has ...
  • McGarraghy, Sean; Olafsdottir, Gudrun; Kazakov, Rossen; Huber, Elise; Loveluck, William; Gudbrandsdottir, Ingunn Yr; Čechura, Lukas; Esposito, Gianadrea; samoggia, antonella; Aubert, Pierre-Marie; Barling, David; Đurić, Ivan; Jaghdani, Tinoush, J; Thakur, Maitri; Saviolidis, Nína María; Bogason, Sigurður G. (2022-02-16)
    System dynamics and agent-based simulation modelling approaches have a potential as tools to evaluate the impact of policy related decision making in food value chains. The context is that a food value chain involves flows of multiple products, financial ...
  • Ranta, Eemu Johannes (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2022-02-25)
    Volatile species (e.g., H2O, He, B, CO2, S, Cl) and their isotopes in volcanic materials provide a unique, but underexplored archive of information about magmatic processes and planetary evolution. This study aims to improve our understanding regarding ...
  • Dagsdóttir, Ósk (University of Iceland, School of Education, Faculty of Subject Teacher Eduaction, 2022-03)
    Creativity is an important component in education. Modern society with an unknown future calls for creative individuals who develop new ideas and solve problems in a creative manner. Computers have taken over much of the routine work in mathematics and ...
  • von Malottki, Stephan; Haldar, Soumyajyoti; Delin, Anna; Heinze, Stefan; Bessarab, Pavel (American Physical Society (APS), 2019-02-26)
    We show that thermal stability of skyrmions due to entropic effects can be strongly affected by external control parameters such as magnetic field and interface composition. The lifetimes of isolated skyrmions in atomic Pd/Fe bilayers on Ir(111) and ...
  • Råberg, Jonathan Henrik (University of Iceland, School of Engineering and Natural Sciences, Faculty of Earth Sciences, 2022)
    As high latitude regions continue a decades-long trend of warming at roughly twice the rate of the global average, an understanding of their climatic histories becomes increasing important for predicting their future. Organic molecular proxies preserved ...
  • Muckel, Florian; von Malottki, Stephan; Holl, Christian; Pestka, Benjamin; Pratzer, Marco; Bessarab, Pavel; Heinze, Stefan; Morgenstern, Markus (Springer Nature, 2021-01-04)
    Magnetic skyrmions are key candidates for applications in memory, logic and neuromorphic computing. An essential property is their topological protection that is caused by the swirling spin texture and described by a robust integer winding number. ...
  • Schrautzer, Hendrik; von Malottki, Stephan; Heinze, Stefan; Bessarab, Pavel (American Physical Society (APS), 2022-01-11)
    Theoretical calculations of thermally activated decay of skyrmions in systems comprising several magnetic monolayers are presented, with a special focus on bilayer systems. Mechanisms of skyrmion collapse are identified and corresponding energy barriers ...
  • Teitsdóttir, Unnur Diljá (University of Iceland, School of Health Sciences, Faculty of Medicine, 2022-02)
    The focus has shifted in recent years from clinical towards a biological definition of Alzheimer’s disease (AD), as pathophysiological changes precede the clinical symptoms by decades. In vivo brain imaging and cerebrospinal fluid (CSF) biomarkers have ...
  • Karvelsson, Sigurður Trausti (University of Iceland, School of Health Sciences, Faculty of Medicine, 2022-02-25)
    Breast cancer is a heterogenous disease in which the mechanism for signalling, gene expression, metabolism and growth in breast tissue is deranged. Breast cancer is responsible for the death of over 600,000 people worldwide on a yearly basis. By ...
  • Kwiatkowski, Grzegorz J.; Badarneh, Mohammad H. A.; Berkov, Dmitry V.; Bessarab, Pavel (American Physical Society (APS), 2021-04-29)
    A complete analytical solution to the optimal reversal of a macrospin with easy-axis anisotropy is presented. An optimal control path minimizing the energy cost of the reversal is identified and used to derive the time-dependent direction and amplitude ...
  • Lindholm, Johnny F. (University of Iceland, School of Humanities, Faculty of Icelandic and Comparative Cultural Studies, 2022-02)
    The goal of the current study is to throw light on a rather neglected part of Icelandic literary and cultural history: Imagery in early Icelandic hymn poetry. More specifically, it is an investigation into the poet Ólafur Jónsson á Söndum’s (c1560–1627) ...
  • Lecomte, Christophe (University of Iceland, School of Engineering and Natural Sciences, Faculty of Industrial Eng., Mechanical Eng. and Computer Science, 2022-02-08)
    Prosthetic devices are intended to replace missing limbs. Although this statement is simple, the design, testing, and validation of these devices are considerably complex. A number of energy-storing-and-returning prosthetic feet are commercially ...
  • Comida, Pier Paolo; Ross, Pierre-Simon; Dürig, Tobias; White, James D. L.; Lefebvre, Nathalie (Springer Nature, 2021-12-27)
    The morphological and textural features of juvenile pyroclasts record crucial details on magma conditions at the time of fragmentation. Their study is therefore essential to better understand the dynamics of explosive eruptions. Unfortunately, the ...
  • Kristjánsdóttir, Þórdís (University of Iceland, School of Engineering and Natural Sciences, Faculty of Industrial Eng., Mechanical Eng. and Computer Science, 2022)
    The current climate crisis and human overpopulation demands more sustainable technologies for industrial chemical synthesis, such as biorefineries. The aim of this project was to study the potential of two non-model microorganisms to produce industrially ...
  • Valgeirsdóttir, Vigdís Vala (University of Iceland, School of Health Sciences, Faculty of Psychology, 2021-12-02)
    The field of lower limb prosthetics has advanced rapidly in the past two decades with increasingly sophisticated devices becoming available each year. Nevertheless, function has yet to be fully restored for people with lower limb amputation. Active ...
  • Kristinsdottir, Iris; Haraldsson, Asgeir; Löve, Arthur; Asgeirsdottir, Tinna Laufey; Thors, Valtyr (Elsevier, 2021-08-09)
    Background: Acute gastroenteritis poses a significant burden on young children, families, health care facilities and societies. Rotavirus is the most common pathogen, but rotavirus infections are vaccine preventable. Information on the epidemiology of ...
  • Sigmarsson, Olgeir; Bergþórsdóttir, Ingibjörg A.; Devidal, Jean-Luc; Larsen, Guðrún; Gannoun, Abdelmouhcine (Springer Nature, 2022-01-07)
    Timescales of magma transfer and differentiation processes can be estimated when the magma differentiation mechanism is known. When conventional major and trace element analyses fail to distinguish between various processes of magma differentiation, ...
  • Jónsson, Jakob Orri (University of Iceland, School of Humanities, Faculty of History and Philosophy, 2022-01-06)
    Í Evrópu og Norður-Ameríku er árnýöld, og sérstaklega 17. og 18. öld, séð sem upphaf neyslubyltingarinnar (e. the consumer revolution), neytendasamfélags (e. consumer society) og umskipta frá varning úr sjálfsþurftarbúskap til neysluvarnings frá verslun. ...