Háskóli Íslands: Recent submissions

  • Gutmann, Torsten; Liu, Jiquan; Rothermel, Niels; Xu, Yeping; Jaumann, Eva; Werner, Mayke; Breitzke, Hergen; Sigurdsson, Snorri; Buntkowsky, Gerd (Wiley, 2015-01-23)
    A novel heterogeneous dirhodium catalyst has been synthesized. This stable catalyst is constructed from dirhodium acetate dimer (Rh2(OAc)4) units, which are covalently linked to amine‐ and carboxyl‐bifunctionalized mesoporous silica (SBA‐15NH2COOH). ...
  • Jagtap, A. P.; Krstic, I.; Kunjir, N. C.; Hänsel, R.; Prisner, Thomas F.; Sigurdsson, Snorri (Informa UK Limited, 2014-11-20)
    Electron paramagnetic resonance (EPR) spectroscopy is a powerful and widely used technique for studying structure and dynamics of biomolecules under bio-orthogonal conditions. In-cell EPR is an emerging area in this field; however, it is hampered by ...
  • Gophane, Dnyaneshwar B.; Endeward, Burkhard; Prisner, Thomas F.; Sigurdsson, Snorri (Wiley, 2014-10-08)
    Three structurally related isoindoline-derived spin labels that have different mobilities were incorporated into duplex DNA to systematically study the effect of motion on orientation-dependent pulsed electron-electron double resonance (PELDOR) ...
  • Shelke, Sandip; Sandholt, Gunnar Birgir; Sigurdsson, Snorri (Royal Society of Chemistry (RSC), 2014)
    Non-covalent and site-directed spin labeling gives easy access to spin-labeled nucleic acids for the study of their structure and dynamics by electron paramagnetic resonance (EPR) spectroscopy. In a search for improved spin labels for non-covalent ...
  • Birgisson, Benedikt Orri; Monger, Lindsey J.; Damodaran, Krishna Kumar; Suman, Sigridur G (Elsevier BV, 2020-02)
    Crystalline and amorphous molybdenum sulfide “MoSx” catalysts are well established in sulfur removal from petrochemicals in heterogeneous reactions. Accessibility of sulfido ligands on the catalyst surface is generally accepted as pre-requisite for ...
  • Gopalan, Giri; Hrafnkelsson, Birgir; Wikle, Christopher K.; Rue, Håvard; Adalgeirsdottir, Gudfinna; Jarosch, Alexander H.; Pálsson, Finnur (Springer Science and Business Media LLC, 2019-06-12)
    In this paper, we extend and analyze a Bayesian hierarchical spatiotemporal model for physical systems. A novelty is to model the discrepancy between the output of a computer simulator for a physical process and the actual process values with a ...
  • Grétarsdóttir, Jóhanna M.; Bobersky, Sandra; Metzler-Nolte, Nils; Suman, Sigridur G (Elsevier BV, 2016-07)
    Selected molybdenum sulfur compounds with the formulas (M)[Mo2O2S4L] where (Et4N)2(1), L = S42 −, (Et4N)(2), L = Cp, (3), L = DMF, K(5), L = serine, M = Et4N+, K+, Na+ and [Mo2O2S2L2] where Na2(4), L = cysteine, and (6), L = threonine, were prepared ...
  • Gophane, Dnyaneshwar B; Sigurdsson, Snorri (Beilstein Institut, 2015-02-09)
    Three 2´-deoxynucleosides containing semi-flexible spin labels, namely TA, UA and UC, were prepared and incorporated into deoxyoligonucleotides using the phosphoramidite method. All three nucleosides contain 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) ...
  • Grytz, C. M.; Marko, A.; Cekan, P.; Sigurdsson, Snorri; Prisner, Thomas F. (Royal Society of Chemistry (RSC), 2016)
    The cocaine aptamer is a DNA three-way junction that binds cocaine at its helical junction. We studied the global conformation and overall flexibility of the aptamer in the absence and presence of cocaine by pulsed electron-electron double resonance ...
  • Hetzke, Thilo; Vogel, Marc; Gophane, Dnyaneshwar B.; Weigand, Julia E.; Suess, Beatrix; Sigurdsson, Snorri; Prisner, Thomas F. (Cold Spring Harbor Laboratory, 2018-10-18)
    The tetracycline-binding RNA aptamer (TC-aptamer) is a synthetic riboswitch that binds the antibiotic tetracycline (TC) with exceptionally high affinity. Although a crystal structure exists of the TC-bound state, little is known about the conformational ...
  • Heinz, Marcel; Erlenbach, Nicole; Stelzl, Lukas S; Thierolf, Grace; Kamble, Nilesh Ramesh; Sigurdsson, Snorri; Prisner, Thomas F.; Hummer, Gerhard (Oxford University Press (OUP), 2019-11-28)
    Pulsed electron paramagnetic resonance (EPR) experiments, among them most prominently pulsed electron-electron double resonance experiments (PELDOR/DEER), resolve the conformational dynamics of nucleic acids with high resolution. The wide application ...
  • Refoyo-Martínez, Alba; da Fonseca, Rute R.; Halldórsdóttir, Katrín; Árnason, Einar; Mailund, Thomas; Racimo, Fernando (Cold Spring Harbor Laboratory, 2019-07-30)
    Detailed modeling of a species’ history is of prime importance for understanding how natural selection operates over time. Most methods designed to detect positive selection along sequenced genomes, however, use simplified representations of past ...
  • Duvander, Ann-Zofie; Lappegård, Trude; Andersen, Synøve N.; Garðarsdóttir, Ólöf; Neyer, Gerda; Viklund, Ida (Max Planck Institute for Demographic Research, 2019-06-18)
    Background: Demographic theories maintain that family policies that support gender equality may lead to higher fertility levels in postindustrial societies. This phenomenon is often exemplified by the situation in the Nordic countries. These countries ...
  • Amirfallah, Arsalan; Arason, Adalgeir; Einarsson, Hjörleifur; Guðmundsdóttir, Eydís Þórunn; Freysteinsdóttir, Edda Sigríður; Ólafsdóttir, Kristrún Auður; Jóhannsson, Óskar Þór; Agnarsson, Bjarni A.; Barkardottir, Rosa Bjork; Reynisdottir, Inga (Public Library of Science (PLoS), 2019-08-23)
    Background: Fusion genes result from genomic structural changes, which can lead to alterations in gene expression that supports tumor development. The aim of the study was to use fusion genes as a tool to identify new breast cancer (BC) genes with a ...
  • Zheng, Zhifeng; Cao, Jiannong; ZhiYong, Lv; Benediktsson, Jon Atli (MDPI AG, 2019-08-14)
    In this article, a novel approach for land cover change detection (LCCD) using very high resolution (VHR) remote sensing images based on spatial-spectral feature fusion and multi-scale segmentation voting decision is proposed. Unlike other traditional ...
  • Helgadóttir, Yelena Sesselja (Háskóli Íslands, Hugvísindasvið, Íslensku- og menningardeild, 2020-09)
    Ritgerð þessi til doktorsprófs í íslenskum bókmenntum miðar að því að skilgreina þulur síðari alda (þjóðkvæði frá u.þ.b. 15.–20. öld) sem kveðskapargrein með nákvæmari hætti en áður hefur verið gert og setja þær betur í samhengi íslenskrar bókmennta- ...
  • Kamble, Nilesh Ramesh; Wolfrum, Manpreet; Halbritter, Thomas; Sigurdsson, Snorri; Richert, Clemens (Wiley, 2020-01-21)
    Studying nucleic acids often requires labeling. Many labeling approaches require covalent bonds between the nucleic acid and the label, which complicates experimental procedures. Noncovalent labeling avoids the need for highly specific reagents and ...
  • Einarsdóttir, Margrét (Laeknabladid/The Icelandic Medical Journal, 2019-02-05)
    Inngangur Einkenni frá stoðkerfi eru algeng meðal unglinga og vitað er að slík einkenni á unglingsárum geta leitt til langvarandi stoðkerfisvandamála á fullorðinsárum. Stoðkerfisvandamál eru vaxandi meðal vinnandi fullorðins fólks og með algengari ...
  • Harðarson, Gísli (Linguistic Society of America, 2020-03-23)
    This paper discusses parallels between the conditioning of phonological processes at the word- and phrase-level. The approach taken here is a direct reference approach in which apparent mismatches between morphosyntactic domains and phonological domains ...
  • Fenger, Paula; Harðarson, Gísli (Linguistic Society of America, 2018-03-03)
    The expression of number (#) within the noun phrase has been argued tovary between a high (num) and a low position, which Kramer (2014) associates with n, providing the root with a syntactic category. We argue that Linking Morphemes (L) in Dutch provide ...