Search Results - "Jónsson, Helgi"

Halogen Bond Activation in Gold Catalysis by Jónsson, Helgi Freyr, Sethio, Daniel, Wolf, Julian, Huber, Stefan M., Fiksdahl, Anne, Erdelyi, Mate

“…Gold catalysis has, over the past decades, provided innovative organic transformations under mild conditions with high chemoselectivities. It receives steadily…”
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Gold(I)-Catalyzed [2 + 2 + 2] Cyclotrimerization of 1,3-Diarylpropargyl Acetals by Jónsson, Helgi Freyr, Evjen, Sigvart, Fiksdahl, Anne

“…A gold-nitrone catalyzed [2 + 2 + 2] cyclotrimerization of 1,3-diarylpropargyl acetals into cyclohexylidene products (up to 74% yield) is reported. The…”
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Tunable Gold‐catalyzed Reactions of Propargyl Alcohols and Aryl Nucleophiles by Jónsson, Helgi Freyr, Solvi, Thomas Nordbø, Lomeland, Sondre, Reiersølmoen, Ann Christin, Fiksdahl, Anne

“…Gold‐catalyzed transformations of 1,3‐diarylpropargyl alcohols and various aryl nucleophiles were studied. Selective tunable synthetic methods were developed…”
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Parenchymal lung changes on CT in patients with coronavirus disease 2019 (COVID-19) by Halldórsson, Arnljótur Björn, Axelsson, Gísli Þór, Jónsson, Helgi Már, Ísaksson, Jóhann Davíð, Harðardóttir, Hrönn, Guðmundsson, Gunnar, Hansdóttir, Sif

“…INTRODUCTION Infections due to COVID-19 can lead to life threatening pneumonia. Accompanying severe disease are more prominent pulmonary changes on Computed…”
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Age related prevalence of hand osteoarthritis diagnosed by photography (HOASCORE) by Jonsson, Helgi

“…Hand photography has been used in a number of studies to determine the presence and severity of hand osteoarthritis (HOA). The aim of this study was to present…”
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In situ detection of an unstable C,N-Au(III) chelate by 15N NMR methods by Lund, Jostein, Freyr Jónsson, Helgi, Fiksdahl, Anne

“…[Display omitted] •Au(III)-NHC-oxazoline complexes prepared from (S)-N-oxazoline-imidazolium preligands.•Structures of relatively unstable Au(III) complexes…”
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The Höfðahólar rock avalanche (sturzström): Chronological constraint of paraglacial landsliding on an Icelandic hillslope by Mercier, Denis, Cossart, Etienne, Decaulne, Armelle, Feuillet, Thierry, Jónsson, Helgi Páll, Sæmundsson, Þorsteinn

“…The Höfðahólar rock avalanche, in the Skagafjörður area of northern Iceland, was investigated on the basis of a geomorphological analysis of its landforms and…”
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The sequences of 150,119 genomes in the UK Biobank by Halldorsson, Bjarni V., Eggertsson, Hannes P., Moore, Kristjan H. S., Hauswedell, Hannes, Eiriksson, Ogmundur, Ulfarsson, Magnus O., Palsson, Gunnar, Hardarson, Marteinn T., Oddsson, Asmundur, Jensson, Brynjar O., Kristmundsdottir, Snaedis, Sigurpalsdottir, Brynja D., Stefansson, Olafur A., Beyter, Doruk, Holley, Guillaume, Tragante, Vinicius, Gylfason, Arnaldur, Olason, Pall I., Zink, Florian, Asgeirsdottir, Margret, Sverrisson, Sverrir T., Sigurdsson, Brynjar, Gudjonsson, Sigurjon A., Sigurdsson, Gunnar T., Halldorsson, Gisli H., Sveinbjornsson, Gardar, Norland, Kristjan, Styrkarsdottir, Unnur, Magnusdottir, Droplaug N., Snorradottir, Steinunn, Kristinsson, Kari, Sobech, Emilia, Jonsson, Helgi, Geirsson, Arni J., Olafsson, Isleifur, Jonsson, Palmi, Pedersen, Ole Birger, Erikstrup, Christian, Brunak, Søren, Ostrowski, Sisse Rye, Thorleifsson, Gudmar, Jonsson, Frosti, Melsted, Pall, Jonsdottir, Ingileif, Rafnar, Thorunn, Holm, Hilma, Stefansson, Hreinn, Saemundsdottir, Jona, Gudbjartsson, Daniel F., Magnusson, Olafur T., Masson, Gisli, Thorsteinsdottir, Unnur, Helgason, Agnar, Jonsson, Hakon, Sulem, Patrick, Stefansson, Kari

“…Detailed knowledge of how diversity in the sequence of the human genome affects phenotypic diversity depends on a comprehensive and reliable characterization…”
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2018 update of the EULAR recommendations for the management of hand osteoarthritis by Kloppenburg, Margreet, Kroon, Féline Pb, Blanco, Francisco J, Doherty, Michael, Dziedzic, Krysia S, Greibrokk, Elsie, Haugen, Ida K, Herrero-Beaumont, Gabriel, Jonsson, Helgi, Kjeken, Ingvild, Maheu, Emmanuel, Ramonda, Roberta, Ritt, Marco Jpf, Smeets, Wilma, Smolen, Josef S, Stamm, Tanja A, Szekanecz, Zoltan, Wittoek, Ruth, Carmona, Loreto

“…Since publication of the European League Against Rheumatism (EULAR) recommendations for management of hand osteoarthritis (OA) in 2007 new evidence has…”
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GWAS of bone size yields twelve loci that also affect height, BMD, osteoarthritis or fractures by Styrkarsdottir, Unnur, Stefansson, Olafur A., Gunnarsdottir, Kristbjorg, Thorleifsson, Gudmar, Lund, Sigrun H., Stefansdottir, Lilja, Juliusson, Kristinn, Agustsdottir, Arna B., Zink, Florian, Halldorsson, Gisli H., Ivarsdottir, Erna V., Benonisdottir, Stefania, Jonsson, Hakon, Gylfason, Arnaldur, Norland, Kristjan, Trajanoska, Katerina, Boer, Cindy G., Southam, Lorraine, Leung, Jason C. S., Tang, Nelson L. S., Kwok, Timothy C. Y., Lee, Jenny S. W., Ho, Suzanne C., Byrjalsen, Inger, Center, Jacqueline R., Lee, Seung Hun, Koh, Jung-Min, Lohmander, L. Stefan, Ho-Pham, Lan T., Nguyen, Tuan V., Eisman, John A., Woo, Jean, Leung, Ping-C., Loughlin, John, Zeggini, Eleftheria, Christiansen, Claus, Rivadeneira, Fernando, van Meurs, Joyce, Uitterlinden, Andre G., Mogensen, Brynjolfur, Jonsson, Helgi, Ingvarsson, Thorvaldur, Sigurdsson, Gunnar, Benediktsson, Rafn, Sulem, Patrick, Jonsdottir, Ingileif, Masson, Gisli, Holm, Hilma, Norddahl, Gudmundur L., Thorsteinsdottir, Unnur, Gudbjartsson, Daniel F., Stefansson, Kari

“…Bone area is one measure of bone size that is easily derived from dual-energy X-ray absorptiometry (DXA) scans. In a GWA study of DXA bone area of the hip and…”
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An early Holocene age for the Vatn landslide (Skagafjörður, central northern Iceland): Insights into the role of postglacial landsliding on slope development by Decaulne, Armelle, Cossart, Etienne, Mercier, Denis, Feuillet, Thierry, Coquin, Julien, Jónsson, Helgi Páll

“…Recent research in northern Iceland has highlighted a significant period of rock slope instability during the early Holocene due to the combined effects of…”
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Preparation of benzannulated spiroketals by gold(III) catalyzed spirocyclization of alkynyl diols by Jónsson, Helgi Freyr, Fiksdahl, Anne

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Gold-NHC-N-naphthamide complexes by Lomeland, Sondre Taugbøl, Øvrebø, Benedicte, Jónsson, Helgi Freyr, Fiksdahl, Anne

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Impacts of post-glacial rebound on landslide spatial distribution at a regional scale in northern Iceland (Skagafjörður) by Cossart, Etienne, Mercier, Denis, Decaulne, Armelle, Feuillet, Thierry, Jónsson, Helgi Páll, Sæmundsson, Þorsteinn

“…ABSTRACT In de‐glaciated areas, para‐glaciation (i.e. the conditioning of landscapes by prior glaciation) has often been considered a major predisposing factor…”
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Latrogenic femoral AV-fistula by Bjarnason, Jón, Jónsson, Helgi Már, Flygenring, Björn

“…The common femoral artery is a widely used for access in endovascular interventions. Various complications, such as hematoma, pseudoaneurysm and AV-fistula…”
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Transdermal Drug Delivery of Tazarotene: Determining Tazarotene's Potential in Local Transdermal Therapy by Hamzehpour, Helena, Óskarsdóttir, Ástrós, Jónsson, Helgi, Jónsdóttir, Fjóla, Sigurjónsson, Ólafur E, Snorradottir, Bergthora S

“…Retinoid-based drugs, while effective, are associated with systemic toxicity. Topical alternatives offer a safer option, and tazarotene, a third-generation…”
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Au(I)-catalyzed cycloaddition pathways of non-terminal propargyl substrates by Siah, Huey-San Melanie, Jónsson, Helgi Freyr, Fiksdahl, Anne

“…Novel chiral menthol-based pyridyl nitrone ligands were synthesized and Au(I) coordination of the ligands gave chiral Au(I)-nitrone complexes. 1 H NMR studies…”
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Changes in deposition on a colluvial fan during the upper holocene in the tindastóll mountain, skagafjörður district, north iceland: preliminary results by Decaulne, Armelle, Sæmundsson, Þorsteinn, Jónsson, Helgi Páll, Sandberg, Olga

“…This study investigates variability in depositional processes and landforms on the Innstaland colluvial fan, northern Iceland, over the late Holocene. This is…”
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Genetic predisposition of the severity of joint destruction in rheumatoid arthritis: a population-based study by Knevel, Rachel, Gröndal, Gerður, Huizinga, Tom W J, Visser, A Willemien, Jónsson, Helgi, Víkingsson, Arnór, Geirsson, Arni Jón, Steinsson, Kristján, van der Helm-van Mil, Annette H M

“…The susceptibility to rheumatoid arthritis (RA) is partly heritable, but whether the severity of RA is also influenced by genetics has not been determined. The…”
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Hyperuricemia is associated with intermittent hand joint pain in a cross sectional study of elderly females: The AGES-Reykjavik Study by Jonsson, Helgi, Aspelund, Thor, Eiriksdottir, Gudny, Harris, Tamara B, Launer, Lenore J, Gudnason, Vilmundur

“…The debate whether "asymptomatic hyperuricemia" should be treated is still ongoing. The objective of this cross-sectional study was to analyze whether…”
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