Háskóli Íslands: Síðast bætt við

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    Visualizing metabolic network dynamics through time-series metabolomic data 
    Buchweitz, Lea F.; Yurkovich, James T.; Blessing, Christoph; Kohler, Veronika; Schwarzkopf, Fabian; King, Zachary A.; Yang, Laurence; Jóhannsson, Freyr; Sigurjónsson, Ólafur E.; Rolfsson, Óttar; Heinrich, Julian; Dräger, Andreas (Springer Science and Business Media LLC, 2020-04-03)
    Background: New technologies have given rise to an abundance of-omics data, particularly metabolomic data. The scale of these data introduces new challenges for the interpretation and extraction of knowledge, requiring the development of innovative ...
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    Spatially Enhanced Spectral Unmixing Through Data Fusion of Spectral and Visible Images from Different Sensors 
    Kizel, Fadi; Benediktsson, Jon Atli (MDPI AG, 2020-04-16)
    We propose an unmixing framework for enhancing endmember fraction maps using a combination of spectral and visible images. The new method, data fusion through spatial information-aided learning (DFuSIAL), is based on a learning process for the fusion ...
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    Hypertrophic cardiomyopathy in myosin-binding protein C (MYBPC3) Icelandic founder mutation carriers 
    Adalsteinsdottir, Berglind; Burke, Michael; Maron, Barry J; Danielsen, Ragnar; Lopez, Begoña; Díez Martínez, Domingo Francisco Javier; Jarolim, Petr; Seidman, Jonathan; Seidman, Christine E.; Ho, Carolyn Y; Gunnarsson, Gunnar Þ (BMJ, 2020-04-05)
    Objective The myosin-binding protein C (MYBPC3) c.927-2A>G founder mutation accounts for >90% of sarcomeric hypertrophic cardiomyopathy (HCM) in Iceland. This cross-sectional observational study explored the penetrance and phenotypic burden among ...
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    Participatory Approach to Gap Analysis between Policy and Practice Regarding Air Pollution in Ger Areas of Ulaanbaatar, Mongolia 
    Koo, Bonjun; Na, Jong-Il; Thorsteinsson, Throstur; Cruz, Ana Maria (MDPI AG, 2020-04-18)
    Ulaanbaatar, the capital of Mongolia, suffers from severe air pollution during the long winter months, and its air pollution levels are among the highest in the world. Residents in the ger areas of Ulaanbaatar are unable to take advantage of the laws ...
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    Annual Bands in Vertebrae Validated by Bomb Radiocarbon Assays Provide Estimates of Age and Growth of Whale Sharks 
    Ong, Joyce J. L.; Meekan, Mark G.; Hsu, Hua Hsun; Fanning, L. Paul; Campana, Steven (Frontiers Media SA, 2020-04-06)
    Conservation and management strategies for endangered and threatened species require accurate estimates of demographic parameters such as age and growth. The whale shark, Rhincodon typus, is the largest fish in the world and is highly valued in the ...
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    Effects of treatment with haloperidol and clozapine on the plasma concentrations of thyroid hormones in rats 
    Samadi, Afshin; Ziaee, Mojataba; Isikhan, Selen Yilmaz; Ulusu, Nuriye Nuray; Samadi, Mahshid (Walter de Gruyter GmbH, 2020-04-01)
    Objectives. Psychoactive drugs are group of compounds used to treat severe mental problems, including psychosis, as well as other conditions. This study assessed clinically relevant side effects of haloperidol and clozapine on the thyroid hormones. ...
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    Population dynamics of fish juveniles and invertebrates in Icelandic waters 
    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 ...
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    Drug-Loaded Photosensitizer-Chitosan Nanoparticles for Combinatorial Chemo- and Photodynamic-Therapy of Cancer 
    Pandya, Abhilash D.; Øverbye, Anders; Sahariah, Priyanka; Gaware, Vivek S.; Høgset, Håkon; Másson, Már; Høgset, Anders; Mælandsmo, Gunhild M.; Skotland, Tore; Sandvig, Kirsten; Iversen, Tore-Geir (American Chemical Society (ACS), 2020-02-24)
    In this study we have developed biodegradable polymeric nanoparticles (NPs) containing the cytostatic drugs mertansine (MRT) or cabazitaxel (CBZ). The NPs are based on chitosan (CS) conjugate polymers synthesized with different amounts of the photosensitizer ...
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    Temporal Characteristics of Priming of Attention Shifts Are Mirrored by BOLD Response Patterns in the Frontoparietal Attention Network 
    Brinkhuis, M. A. B.; Kristjansson, Arni; Harvey, Ben M; Brascamp, Jan W (Oxford University Press (OUP), 2019-11-07)
    Priming of attention shifts involves the reduction in search RTs that occurs when target location or target features repeat. We used functional magnetic resonance imaging to investigate the neural basis of such attentional priming, specifically focusing ...
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    A complete Holocene lake sediment ancient DNA record reveals long-standing high Arctic plant diversity hotspot in northern Svalbard 
    Voldstad, Linn H.; Alsos, Inger G.; Farnsworth, Wesley; Heintzman, Peter D.; Håkansson, Lena; Kjellman, Sofia E.; Rouillard, Alexandra; Schomacker, Anders; Eidesen, Pernille B. (Elsevier BV, 2020-04-15)
    Arctic hotspots, local areas of high biodiversity, are potential key sites for conservation of Arctic biodiversity. However, there is a need for improved understanding of their long-term resilience. The Arctic hotspot of Ringhorndalen has the highest ...
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    Strong coupling of excitons in 2D MoSe2/hBN heterostructure with optical bound states in the continuum 
    Benimetskiy, F. A.; Kravtsov, V.; Khestanova, E.; Mukhin, I. S.; Sinev, I. S.; Samusev, A. K.; Shelykh, Ivan; Krizhanovskii, Dmitry N.; Skolnick, Maurice; Iorsh, I. V. (IOP Publishing, 2020-04-23)
    We experimentally demonstrate strong exciton-photon coupling in a MoSe2/hBN heterostructure interfaced with an all-dielectric metasurface supporting high-Q bound states in the continuum. The resulting exciton-polaritons are probed by means of temperature- ...
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    Floquet engineering of 2D materials 
    Kibis, O. V.; Iorsh, I. V.; Shelykh, Ivan (IOP Publishing, 2020-04-23)
    We demonstrate theoretically that the interaction of electrons in the 2D materials (gapped graphene and transition metal dichalchogenide monolayer) with a strong off-resonant electromagnetic field substantially renormalizes their band structure, including ...
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    Electron-photonic topological states on the surface of a bulk semiconductor driven by a high-frequency field 
    Kibis, O. V.; Kyriienko, O.; Shelykh, Ivan (IOP Publishing, 2020-03-23)
    It is shown theoretically that the strong coupling of electrons in a bulk gapless semiconductor (HgTe) to a circularly polarized high-frequency electromagnetic field induces topological states on the surface of the semiconductor. Their branches lie ...
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    Are symptoms of insomnia related to respiratory symptoms? Cross-sectional results from 10 European countries and Australia 
    Björnsdóttir, Erla; Lindberg, Eva; Benediktsdóttir, Bryndís; Gislason, Thorarinn; Garcia Larsen, Vanessa; Franklin, Karl; Jarvis, Debbie; Demoly, Pascal; Perret, Jennifer L; Garcia Aymerich, Judith; Arenas, Sandra Dorado; Heinrich, Joachim; Torén, Kjell; Jögi, Rain; Janson, Christer (BMJ, 2020-04-28)
    Objectives To compare the prevalence of different insomnia subtypes among middle-Aged adults from Europe and Australia and to explore the cross-sectional relationship between insomnia subtypes, respiratory symptoms and lung function. Design Cross-sectional ...
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    Hydrothermal and Cold Spring Water and Primary Productivity Effects on Magnesium Isotopes: Lake Myvatn, Iceland 
    Pogge von Strandmann, Philip A. E.; Burton, Kevin W.; Opfergelt, Sophie; Eiríksdóttir, Eydís Salóme; Murphy, Melissa J.; Einarsson, Árni; Gíslason, Sigurður R. (Frontiers Media SA, 2020-04-30)
    Lake Myvatn, Iceland, is one of the most biologically productive lakes in the northern hemisphere, despite seasonal ice cover. Hydrothermal and groundwater springs make up the dominant source to this lake, and we investigate their Mg isotope ratio to ...
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    An evaluation of the cost-competitiveness of maritime fuels – a comparison of heavy fuel oil and methanol (renewable and natural gas) in Iceland 
    Helgason, Rafn; Cook, David; Davidsdottir, Brynhildur (Elsevier BV, 2020-07)
    Alternative fuels have been proposed to ensure compliance with the increasingly more stringent emission standards proposed by the International Maritime Organization. In addition, the Icelandic government aims to introduce 10% renewable energy into the ...
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    The effect of systemic antibiotics on clinical and patient‐reported outcome measures of oral implant therapy with simultaneous guided bone regeneration 
    Payer, Michael; Tan, Wah Ching; Han, Jie; Ivanovski, Saso; Mattheos, Nikos; Pjetursson, Bjarni Elvar; Zhuang, Longfei; Fokas, George; Wong, May C. M.; Acham, Stephan; Lang, Niklaus P.; Hafner, Erika; Jakse, Norbert; Kirnbauer, Barbara; Stagnell, Sami; Simon, Simone; Truschnegg, Astrid; Feng, Gui; Meng, Xin; Shi, Jun‐Yu (Wiley, 2020-02-17)
    Objectives: The aim of the present superiority study was to determine the effect of systemic antibiotics primarily on patient-reported outcome measures (PROMs) and post-surgical complications in patients undergoing oral implant therapy with simultaneous ...
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    Social trauma and its association with posttraumatic stress disorder and social anxiety disorder 
    Bjornsson, Andri; Harðarson, Jóhann P.; Valdimarsdóttir, Auður G.; Guðmundsdóttir, Karen; Tryggvadóttir, Arnrún; Þórarinsdóttir, Kristjana A.; Wessman, Inga; Sigurjónsdóttir, Ólafía; Davíðsdóttir, Sóley; Þórisdóttir, Auður Sjöfn (Elsevier BV, 2020-05)
    The key characteristic of a traumatic event as defined by the Diagnostic and Mental Manual of Mental Disorders (DSM) seems to be a threat to life. However, evidence suggests that other types of threats may play a role in the development of PTSD and ...
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    The grey zones of technological innovation: negative unintended consequences as a counterbalance to novelty 
    McKelvey, Maureen; Saemundsson, Rognvaldur (Informa UK Limited, 2020-06-28)
    The purpose of this article is to better understand the challenges of avoiding the dark side of technological innovation. Specifically, we analyse 10 public investigations started as a reaction to a major crisis in regenerative medicine at the Karolinska ...
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    Smoking-by-genotype interaction in type 2 diabetes risk and fasting glucose 
    Wu, Peitao; Rybin, Denis; Bielak, Lawrence F.; Feitosa, Mary F.; Franceschini, Nora; Li, Yize; Lu, Yingchang; Marten, Jonathan; Musani, Solomon K.; Noordam, Raymond; Raghavan, Sridharan; Rose, Lynda M.; Schwander, Karen; Smith, Albert Vernon; Tajuddin, Salman M.; Vojinovic, Dina; Amin, Najaf; Arnett, Donna K.; Bottinger, Erwin P.; Demirkan, Ayse; Florez, Jose C.; Ghanbari, Mohsen; Harris, Tamara B.; Launer, Lenore J.; Liu, Jingmin; Liu, Jun; Mook-Kanamori, Dennis O.; Murray, Alison D.; Nalls, Mike A.; Peyser, Patricia A.; Uitterlinden, André G.; Voortman, Trudy; Bouchard, Claude; Chasman, Daniel; Correa, Adolfo; de Mutsert, Renée; Evans, Michele K.; Gudnason, Vilmundur; Hayward, Caroline; Kao, Linda; Kardia, Sharon L. R.; Kooperberg, Charles; Loos, Ruth J. F.; Province, Michael M.; Rankinen, Tuomo; Redline, Susan; Ridker, Paul M.; Rotter, Jerome I.; Siscovick, David; Smith, Blair H.; van Duijn, Cornelia; Zonderman, Alan B.; Rao, D. C.; Wilson, James G.; Dupuis, Josée; Meigs, James B.; Liu, Ching-Ti; Vassy, Jason L. (Public Library of Science (PLoS), 2020-05-07)
    Smoking is a potentially causal behavioral risk factor for type 2 diabetes (T2D), but not all smokers develop T2D. It is unknown whether genetic factors partially explain this variation. We performed genome-environment-wide interaction studies to ...