Opin vísindi: Síðast bætt við

  • Kolb, Manuel; Garden, Anna; Badan, Cansin; Garrido Torres, Jose Antonio; Skulason, Egill; Juurlink, Ludo; Jónsson, Hannes; Koper, Marc (Royal Society of Chemistry (RSC), 2019-07-16)
    In this work we compute high-coverage hydrogen adsorption energies and geometries on the stepped platinum surfaces Pt(211) and Pt(533) which contain a (100)-step type and the Pt(221) and Pt(553) surface with a (111) step edge. We discuss these results ...
  • Wolters, Frank J.; Yang, Qiong; Biggs, Mary L.; Jakobsdottir, Johanna; Li, Shuo; Evans, Daniel S.; Bis, Joshua C.; Harris, Tamara B.; Vasan, Ramachandran S.; Zilhao, Nuno R.; Ghanbari, Mohsen; Ikram, M. Arfan; Launer, Lenore; Psaty, Bruce M.; Tranah, Gregory J.; Kulminski, Alexander M.; Gudnason, Vilmundur; Seshadri, Sudha (Public Library of Science (PLoS), 2019-07-29)
    Background Apolipoprotein E is a glycoprotein best known as a mediator and regulator of lipid transport and uptake. The APOE-e4 allele has long been associated with increased risks of Alzheimer's disease and mortality, but the effect of the less prevalent ...
  • Jonsson, Helgi; Aspelund, Thor; Eiriksdottir, Gudny; Harris, Tamara B.; Launer, Lenore J.; Gudnason, Vilmundur (Public Library of Science (PLoS), 2019-08-23)
    Background: The debate whether "asymptomatic hyperuricemia" should be treated is still ongoing. The objective of this cross-sectional study was to analyze whether hyperuricema in the elderly is associated with joint pain. Methods and findings: Participants ...
  • Unnsteinsson, Elmar (KruZak, 2017)
    In response to Stephen Neale (2016), I argue that aphonic expressions, such as PRO, are intentionally uttered by normal speakers of natural language, either by acts of omitting to say something explicitly, or by acts of giving phonetic realization to ...
  • Unnsteinsson, Elmar (Cambridge University Press (CUP), 2016-04)
    Speakers are confused about identity if they mistake one thing for two or two things for one. I present two plausible models of confusion, the Frege model and the Millikan model. I show how a prominent objection to Fregean models fails and argue that ...
  • Unnsteinsson, Elmar (Wiley, 2017-07-14)
    Gricean intentionalists hold that what a speaker says and means by a linguistic utterance is determined by the speaker's communicative intention. On this view, one cannot really say anything without meaning it as well. Conventionalists argue, however, ...
  • Harris, Daniel W.; Unnsteinsson, Elmar (Informa UK Limited, 2017-12-05)
    Many philosophers have assumed, without argument, that Wittgenstein influenced Austin. More often, however, this is vehemently denied, especially by those who knew Austin personally. We compile and assess the currently available evidence for Wittgenstein’s ...
  • Unnsteinsson, Elmar (Informa UK Limited, 2018-02-06)
    Buchanan [2014] argues for a Gricean solution to well-known counterexamples to direct reference theories of content. Peet [2016] develops a way to change the counterexample so that it seems to speak against Buchanan's own proposal. I argue that both ...
  • Unnsteinsson, Elmar (Informa UK Limited, 2018-03-21)
    I argue for a theory of the optimal function of the speech act of referring, called the edenic theory. First, the act of singular reference is defined directly in terms of Gricean communicative intentions. Second, I propose a doxastic constraint on the ...
  • Unnsteinsson, Elmar (Wiley, 2018-05-23)
    Many philosophers have argued or taken for granted that Frege's puzzle has little or nothing to do with identity statements. I show that this is wrong, arguing that the puzzle can only be motivated relative to a thinker's beliefs about the identity or ...
  • Juliusson, Haraldur Y.; Sigurdsson, Snorri (American Chemical Society (ACS), 2020-02-27)
    Electron paramagnetic resonance (EPR) spectroscopy, coupled with site-directed spin labeling (SDSL), is a useful method for studying conformational changes of biomolecules in cells. To employ in-cell EPR using nitroxide-based spin labels, the structure ...
  • Monger, Lindsey J.; Runarsdottir, Gerdur R.; Suman, Sigridur G (Springer Science and Business Media LLC, 2020-07-16)
    Alkylation of the C-terminus acids in small peptides allows direction to amine and amide coordination, while changing the peptide composition to form tetradentate κ4[n,5,5], where n = 5-, 6-, 7-, or 8-membered ring coordination geometries, can be ...
  • Juliusson, Haraldur Y.; Sigurdsson, Snorri (Wiley, 2020-07)
    Two o‐benzoquinone derivatives of isoindoline were synthesized for use as building blocks to incorporate isoindoline nitroxides into different compounds and materials. These o‐quinones were condensed with a number of o‐phenylenediamines to form ...
  • Mandal, Sucharita; Sigurdsson, Snorri (Wiley, 2020-05-12)
    1,3‐Bis(diphenylene)‐2‐phenylallyl (BDPA)‐based radicals are of interest as polarizing agents for dynamic nuclear polarization (DNP). For this purpose, a BDPA‐nitroxide biradical, employing a phosphodiester linkage, was synthesized. Contrary to what ...
  • Juliusson, Haraldur Y.; Segler, Anna-Lena J.; Sigurdsson, Snorri (Wiley, 2019-06-17)
    Oligonucleotides containing nitroxide spin labels, used in biophysical studies of nucleic acids, are frequently prepared by chemical synthesis. However, during the synthesis of spin‐labeled oligonucleotides, the nitroxides are partially reduced to the ...
  • Saha, Subham; Hetzke, Thilo; Prisner, Thomas F.; Sigurdsson, Snorri (Royal Society of Chemistry (RSC), 2018)
    In the first example of site-directed spin-labeling of unmodified RNA, a pyrrolidine-nitroxide derivative of tetramethylrosamine (TMR) was shown to bind with high affinity to the malachite green (MG) aptamer, as determined by continuous-wave (CW) ...
  • Gränz, Markus; Erlenbach, Nicole; Spindler, Philipp; Gophane, Dnyaneshwar B.; Stelzl, Lukas S.; Sigurdsson, Snorri; Prisner, Thomas F. (Wiley, 2018-08-13)
    The investigation of the structure and conformational dynamics of biomolecules under physiological conditions is challenging for structural biology. Although pulsed electron paramagnetic resonance (like PELDOR) techniques provide long‐range distance ...
  • Elíasson, Ottó (Faculty of Science and Technology of Århus University, 2019-11)
    This thesis covers experimental work conducted within two distinct fields of cold-atom physics. The first part describes an experiment capable of spatially-selective dispersive measurements of a cold-atomic system in part or in whole, by virtue of a ...
  • Sigurjónsdóttir, Sigríður; Rögnvaldsson, Eiríkur (The Educational Research Institute, 2020-02-06)
    Markmið öndvegisverkefnisins Greining á málfræðilegum afleiðingum stafræns málsambýlis, sem lýst er í þessari grein, er að kanna stöðu íslensku á tímum mikilla samfélags- og tæknibreytinga, með sérstöku tilliti til hugsanlegra áhrifa ensku, einkum í ...
  • Benediktsson, Artem Ingmar; Ragnarsdottir, Hanna (Eurasian Society of Educational Research, 2019-04-15)
    The paper is part of the qualitative research project Educational Aspirations, Opportunities and Challenges for Immigrants in University Education in Iceland, conducted in Iceland’s three biggest universities. The main goal of the paper is to investigate ...