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Browsing Greinar- HÍ by Title

Browsing Greinar- HÍ by Title

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    Assessing the depth resolution of tomographic models of upper mantle structure beneath Iceland 
    Wolfe, Cecily J.; Bjarnason, Ingi Þorleifur; VanDecar, John C.; Solomon, Sean C. (Wiley-Blackwell, 2002)
    Earlier inversions of body wave delay-time data recorded during the ICEMELT portable broadband experiment imaged a cylindrical plume-like low-velocity anomaly extending to at least 400 km depth beneath Iceland, but the depth extent of the anomaly ...
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    Assessing the Effects of Climate Change and Air Pollution on Soil Properties and Plant Diversity in Northeastern U.S. Hardwood Forests: Model Setup and Evaluation 
    Belyazid, Salim; Phelan, Jennifer; Nihlgård, Bengt; Sverdrup, Harald Ulrik; Driscoll, Charles; Fernandez, Ivan; Aherne, Julian; Teeling-Adams, Leslie M.; Bailey, Scott; Arsenault, Matt; Cleavitt, Natalie; Engstrom, Brett; Dennis, Robin; Sperduto, Dan; Werier, David; Clark, Christopher (Springer Science and Business Media LLC, 2019-04-29)
    The integrated forest ecosystem model ForSAFE-Veg was used to simulate soil processes and understory vegetation composition at three—sugar maple, beech, yellow birch—hardwood forest sites in the Northeastern United States (one at Hubbard Brook, NH, and ...
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    Assessing the reliability, validity and acceptance of a classification scheme of usability problems (CUP) 
    Vilbergsdóttir, Sigurbjörg Gróa; Hvannberg, Ebba Thora; Law, Effie Lai-Chong (Elsevier BV, 2014-01)
    The aim of this study was to evaluate the Classification of Usability Problems (CUP) scheme. The goal of CUP is to classify usability problems further to give user interface developers better feedback to improve their understanding of usability problems, ...
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    Assessing the Value of a Mobile Application in Fostering Ideation within a School Context 
    Þorsteinsson, Gísli; Gunnarsdóttir, Rósa; Niculescu, Andrei (ICI Bucharest, 2015-03-10)
    The purpose of this paper is to explore the usefulness of the mobile application NeedIT in fostering ideation and idea generation in a school context. After having been used and tested in three public schools a research was undertaken in an elementary ...
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    Assessment of Landslide-Induced Geomorphological Changes in Hítardalur Valley, Iceland, Using Sentinel-1 and Sentinel-2 Data 
    Dabiri, Zahra; Hölbling, Daniel; Abad, Lorena; Helgason, Jón Kristinn; Saemundsson, Thorsteinn; Tiede, Dirk (MDPI AG, 2020-08-24)
    Landslide mapping and analysis are essential aspects of hazard and risk analysis. Landslides can block rivers and create landslide-dammed lakes, which pose a significant risk for downstream areas. In this research, we used an object-based image analysis ...
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    Assessment of the potential respiratory hazard of volcanic ash from future Icelandic eruptions: a study of archived basaltic to rhyolitic ash samples 
    Damby, David E.; Horwell, Claire J.; Larsen, Guðrún Þorgerður; Thordarson, Thorvaldur; Tomatis, Maura; Fubini, Bice; Donaldson, Ken (Springer Nature, 2017-09-11)
    Background The eruptions of Eyjafjallajökull (2010) and Grímsvötn (2011), Iceland, triggered immediate, international consideration of the respiratory health hazard of inhaling volcanic ash, and prompted the need to estimate the potential hazard posed ...
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    An Assessment of the Sustainability of Lignocellulosic Bioethanol Production from Wastes in Iceland 
    Safarian, Sahar; Unnthorsson, Runar (MDPI AG, 2018-06-07)
    This paper describes the development of a model to comprehensively assess the sustainability impacts of producing lignocellulosic bioethanol from various types of municipal organic wastes (MOWs) in Iceland: paper and paperboard, timber and wood and ...
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    Association between Adherence to the Mediterranean Diet and Physical Fitness with Body Composition Parameters in 1717 European Adolescents: The AdolesHealth Study 
    Galan-Lopez, Pablo; Sanchez-Oliver, Antonio J.; Pihu, Maret; Gisladottir, Thordis; Domínguez, Raúl; Ries, Francis (MDPI AG, 2019-12-27)
    Obesity, low levels of physical fitness, and unhealthy eating patterns are responsiblefor part of the health problems of adolescents today. The current study aimed at examining theassociation between the adherence to the Mediterranean diet (MD), ...
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    The association between daily concentrations of air pollution and visits to a psychiatric emergency unit: a case-crossover study 
    Oudin, Anna; Åström, Daniel Oudin; Asplund, Peter; Steingrimsson, Steinn; Szabo, Zoltan; Carlsen, Hanne Krage (Springer Nature, 2018-01-10)
    Background: Air pollution is one of the leading causes of mortality and morbidity worldwide. Experimental studies, and a few epidemiological studies, suggest that air pollution may cause acute exacerbation of psychiatric disorders, and even increase ...
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    Association between maternal gluten intake and type 1 diabetes in offspring: national prospective cohort study in Denmark 
    Antvorskov, Julie C; Halldorsson, Thorhallur; Josefsen, Knud; Svensson, Jannet; Granström, Charlotta; Roep, Bart O; Olesen, Trine H; Hrolfsdottir, Laufey; Buschard, Karsten; Olsen, Sjurdur F. (BMJ, 2018-09-19)
    Objective To examine the association between prenatal gluten exposure and offspring risk of type 1 diabetes in humans. Design National prospective cohort study. Setting National health information registries in Denmark. Participants Pregnant ...
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    Association Between Nucleotide Variation in Egfr and Wing Shape in Drosophila melanogaster 
    Palsson, Arnar; Gibson, Greg (Genetics Society of America, 2004-07-01)
    As part of an effort to dissect quantitative trait locus effects to the nucleotide level, association was assessed between 238 single-nucleotide and 20 indel polymorphisms spread over 11 kb of the Drosophila melanogaster Egfr locus and nine relative ...
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    Association between prescription of hypnotics/anxiolytics and mortality in multimorbid and non-multimorbid patients: a longitudinal cohort study in primary care 
    Linnet, Kristjan; Sigurdsson, Johann Agust; Tómasdóttir, Margrét Ólafía; Sigurðsson, Emil Lárus; Guðmundsson, Lárus Steinþór (BMJ, 2019-12-05)
    Objectives To assess the risk of mortality in primary care patients, multimorbid (≥2 chronic conditions) or not, prescribed hypnotics/anxiolytics. Design A longitudinal cohort study Setting Primary healthcare in the Reykjavik area. Participants 114 084 ...
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    Association of Dietary Patterns With Testicular Function in Young Danish Men 
    Nassan, Feiby L.; Jensen, Tina K.; Priskorn, Lærke; Halldorsson, Thorhallur; Chavarro, Jorge E.; Jørgensen, Niels (American Medical Association (AMA), 2020-02-21)
    Importance: Diet may play a role in testicular function, but data on how adherence to different diet patterns influences human testicular function are scarce. Objective: To determine whether adherence to specific dietary patterns is associated with ...
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    Association of Dual Decline in Memory and Gait Speed With Risk for Dementia Among Adults Older Than 60 Years 
    Tian, Qu; Resnick, Susan M.; Mielke, Michelle M.; Yaffe, Kristine; Launer, Lenore J.; Jónsson, Pálmi V.; Grande, Giulia; Welmer, Anna-Karin; Laukka, Erika J.; Bandinelli, Stefania; Cherubini, Antonio; Rosano, Caterina; Kritchevsky, Stephen B.; Simonsick, Eleanor M.; Studenski, Stephanie A.; Ferrucci, Luigi (American Medical Association (AMA), 2020-02-21)
    Importance: Dual decline in both memory and gait speed may characterize a group of older individuals at high risk for future dementia. Objective: To assess the risk of dementia in older persons who experience parallel declines in memory and gait speed ...
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    Association of energy and protein intakes with length of stay, readmission and mortality in hospitalised patients with chronic obstructive pulmonary disease 
    Ingadottir, Arora Ros; Beck, Anne M.; Baldwin, Christine; Weekes, C. Elizabeth; Geirsdottir, Olof; Ramel, Alfons; Gislason, Thorarinn; Gunnarsdottir, Ingibjorg (Cambridge University Press (CUP), 2018-03-06)
    Low energy and protein intakes have been associated with an increased risk of malnutrition in outpatients with chronic obstructive pulmonary disease (COPD). We aimed to assess the energy and protein intakes of hospitalised COPD patients according to ...
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    Association of FADS1/2 Locus Variants and Polyunsaturated Fatty Acids With Aortic Stenosis 
    Chen, Hao Yu; Cairns, Benjamin J.; Small, Aeron M.; Burr, Hannah A.; Ambikkumar, Athithan; Martinsson, Andreas; Thériault, Sébastien; Munter, Hans Markus; Steffen, Brian; Zhang, Richard; Levinson, Rebecca T.; Shaffer, Christian M.; Rong, Jian; Sonestedt, Emily; Dufresne, Line; Ljungberg, Johan; Näslund, Ulf; Johansson, Bengt; Ranatunga, Dilrini K.; Whitmer, Rachel A.; Budoff, Matthew J.; Nguyen, Albert; Vasan, Ramachandran S.; Larson, Martin G.; Harris, William S.; Damrauer, Scott M.; Stark, Ken D.; Boekholdt, S. Matthijs; Wareham, Nicholas J.; Pibarot, Philippe; Arsenault, Benoit J.; Mathieu, Patrick; Gudnason, Vilmundur; O’Donnell, Christopher J.; Rotter, Jerome I.; Tsai, Michael Y.; Post, Wendy S.; Clarke, Robert; Söderberg, Stefan; Bossé, Yohan; Wells, Quinn S.; Smith, J. Gustav; Rader, Daniel J.; Lathrop, Mark; Engert, James C.; Thanassoulis, George (American Medical Association (AMA), 2020-06-01)
    Importance: Aortic stenosis (AS) has no approved medical treatment. Identifying etiological pathways for AS could identify pharmacological targets. Objective: To identify novel genetic loci and pathways associated with AS. Design, Setting, and Participants: ...
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    Association of Genetically Predicted Lipid Levels With the Extent of Coronary Atherosclerosis in Icelandic Adults 
    Björnsson, Eyþór; Þorleifsson, Guðmar; Helgadóttir, Anna; Gudnason, Thorarinn; Gudbjartsson, Tomas; Andersen, Karl; Grétarsdóttir, Sólveig; Ólafsson, Ísleifur; Tragante, Vinicius; Ólafsson, Ólafur Hreiðar; Jónsdóttir, Birna; Eyjólfsson, Guðmundur I.; Sigurðardóttir, Ólöf; Thorgeirsson, Gudmundur; Gudbjartsson, Daniel; Thorsteinsdottir, Unnur; Holm, Hilma; Stefansson, Kari (American Medical Association (AMA), 2020-01-01)
    Importance: Genetic studies have evaluated the influence of blood lipid levels on the risk of coronary artery disease (CAD), but less is known about how they are associated with the extent of coronary atherosclerosis. Objective: To estimate the ...
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    Association of glial and neuronal degeneration markers with Alzheimer’s disease cerebrospinal fluid profile and cognitive functions 
    Teitsdóttir, Unnur Diljá; Jónsdóttir, María K.; Lund, Sigrún H.; Darreh-Shori, Taher; Snædal, Jón; Petersen, Pétur H. (Springer Science and Business Media LLC, 2020-08-04)
    Background: Neuroinflammation has gained increasing attention as a potential contributing factor in the onset and progression of Alzheimer's disease (AD). The objective of this study was to examine the association of selected cerebrospinal fluid (CSF) ...
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    Association study in African-admixed populations across the Americas recapitulates asthma risk loci in non-African populations 
    Daya, Michelle; Bjarnadóttir, Hrafnhildur (Springer Science and Business Media LLC, 2019-02-20)
    Asthma is a complex disease with striking disparities across racial and ethnic groups. Despite its relatively high burden, representation of individuals of African ancestry in asthma genome-wide association studies (GWAS) has been inadequate, and true ...
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    Associations between intraoperative factors and surgeons’ self-assessed operative satisfaction 
    Erestam, Sofia; Bock, David; Erichsen Andersson, Annette; Bjartell, Anders; Carlsson, Stefan; Stinesen Kollberg, Karin; Sjoberg, Daniel; Steineck, Gunnar; Stranne, Johan; Þorsteinsdóttir, Þórdís; Tyritzis, Stavros; Wallerstedt Lantz, Anna; Wiklund, Peter; Angenete, Eva; Haglind, Eva (Springer Science and Business Media LLC, 2019-03-18)
    Background: Little is known concerning what may infuence surgeon satisfaction with a surgical procedure and its associations with intraoperative factors. The objective was to explore the relationships between surgeons’ self-assessed satisfaction with ...