• Killing superalgebras for Lorentzian four-manifolds 

      de Medeiros, Paul; Figueroa-O’Farrill, José; Santi, Andrea (Journal article; Peer reviewed, 2016-06)
      We determine the Killing superalgebras underpinning field theories with rigid unextended supersymmetry on Lorentzian four-manifolds by re-interpreting them as filtered deformations of Z-graded subalgebras with maximum odd ...
    • Leptogenesis in crossing and runaway regimes. 

      Hohenegger, Andreas; Kartavtsev, Alexander (Journal article; Peer reviewed, 2014-07)
      We study the impact of effective thermal masses and widths on resonant leptogenesis. We identify two distinct possibilities which we refer to as ‘crossing’ and ‘runaway’ regimes. In the runaway regime the mass difference ...
    • Lil3 assembles with proteins regulating chlorophyll synthesis in barley 

      Mork-Jansson, Astrid; Bue, Ann Kristin; Gargano, Daniela; Furnes, Clemens; Reisinger, Veronika; Arnold, Janine; Kmiec, Karol; Eichacker, Lutz Andreas (Journal article; Peer reviewed, 2015-06)
      The light-harvesting-like (LIL) proteins are a family of membrane proteins that share a chlorophyll a/b-binding motif with the major light-harvesting antenna proteins of oxygenic photoautotrophs. LIL proteins have been ...
    • Microwave-Assisted One-Pot Synthesis of Novel Polyarylpyrrole Derivatives of Expected Anticancer Activity 

      Younis, Ahmed; Hassan, Ali M; Mady, Mohamed Fawzy; El-Haddad, AF; FA, Yassin; Fayad, Mahmoud (Journal article, 2017)
      An efficient synthesis of Novel pyrrolederivatives was achieved via solventless reaction of chalcones 1(a-e) with different aldehydes 2(a-e) and ammonium acetate in the presence of sodium cyanide in one-pot under microwave ...
    • Mimicking orchids lure bees from afar with exaggerated ultraviolet signals 

      Scaccabarozzi, Daniela; Lunau, Klaus; Guzzetti, Lorenzo; Cozzolino, Salvatore; Dyer, Adrian G.; Tommasi, Nicola; Biella, Paolo; Galimberti, Andrea; Labra, Massimo; Bruni, Ilaria; Pattarini, Giorgio; Brundrett, Mark; Gagliano, Monica (Peer reviewed; Journal article, 2023-01)
      Flowers have many traits to appeal to pollinators, including ultraviolet (UV) absorbing markings, which are well-known for attracting bees at close proximity (e.g., <1 m). While striking UV signals have been thought to ...
    • A multiple-source air quality control model achieving a standard, defined by a vector-valued function 

      Gustafson, Sven-Åke (Conference object, 2009-07)
      Earlier papers by Gustafson, Kortanek, Sweigart and others describe models for controlling air pollution, consisting of chemically inert pollutants like sulphur dioxide. It was assumed that the concentration contributions ...
    • Natural peptides with antioxidant activity from Atlantic cod and Atlantic salmon residual material 

      Pampanin, Daniela M.; Haar, Marianne Bore; Sydnes, Magne Olav (Journal article; Peer reviewed, 2016-03)
      Summary. Water-soluble peptides/proteins with molecular weight below 10 kDa were isolated from residual material of cod (liver, skin, and cod mix i.e. skin, frames, and viscera), and salmon (skin, and salmon mix i.e. skin, ...
    • Note on the invariant classification of vacuum type D spacetimes 

      Coley, Alan; Hervik, Sigbjørn (Journal article; Peer reviewed, 2009-12)
      We illustrate the fact that the class of vacuum type D spacetimes which are I-non-degenerate are invariantly classified by their scalar polynomial curvature invariants.
    • On computational linear semi-infinite programming 

      Gustafson, Sven-Åke (Peer reviewed; Journal article, 2008-12)
    • On high-order perturbative calculations at finite density 

      Ghisoiu, Ioan; Gorda, Tyler; Kurkela, Aleksi; Romatschke, Paul; Säppi, Matias; Vuorinen, Aleksi (Journal article; Peer reviewed, 2017-02)
      We discuss the prospects of performing high-order perturbative calculations in systems characterized by a vanishing temperature but finite density. In particular, we show that the determination of generic Feynman integrals ...
    • On the algebraic classification of pseudo-Riemannian spaces 

      Hervik, Sigbjørn; Coley, Alan (Journal article; Peer reviewed, 2011-12)
      We consider arbitrary-dimensional pseudo-Riemannian spaces of signature (k, k + m). We introduce a boost-weight decomposition and define a number of algebraic properties (e.g. the Si- and N-properties) and present a ...
    • On-shell parameter fixing in the quark-meson model 

      Adhikari, Prabal; Andersen, Jens Oluf; Kneschke, Patrick (Journal article; Peer reviewed, 2017-02)
      The quark-meson model is often used as an effective low-energy model for QCD to study the chiral transition at finite temperature T and baryon chemical potential μB. The parameters in the quark-meson model can be found by ...
    • Optimization of acid catalyzed transesterification of jatropha and rapeseed oil with 1-butanol 

      Bynes, Adrian N.; Eide, Ingvar; Jørgensen, Kåre Bredeli (Peer reviewed; Journal article, 2014-08)
      The acid catalyzed transesterification of rapeseed and jatropha oil with 1-butanol was studied by varying temperature, reaction time, butanol/triglyceride ratio and the amount of sulfuric acid. A full factorial design ...
    • Photochemical oxidative cyclisation of stilbenes and stilbenoids : the Mallory-reaction 

      Jørgensen, Kåre B. (Journal article; Peer reviewed, 2011-06-14)
      After Mallory described in 1964 the use of iodine as catalyst for the photochemical cyclisation of stilbenes, this reaction has proven its effectiveness in the synthesis of phenanthrenes, other PAHs and phenacenes with a ...
    • Photochemical synthesis of chrysenols 

      Jørgensen, Kåre B.; Joensen, Majbritt (Peer reviewed; Journal article, 2008-08)
      Chrysenols are formed together with other metabolites when chrysene is metabolized in living organisms. The principal metabolites are needed as pure compounds for reference materials and standards to study various aspects ...
    • PLATINUM SENSITIVE 2 LIKE impacts growth, root morphology, seed set, and stress responses 

      Lillo, Catherine; Kataya, Amr R. A.; Creighton, Maria Terese; Napitupulu, Toga P.; Sætre, Christine; Heidari, Behzad; Ruoff, Peter (Journal article; Peer reviewed, 2017-07)
      Eukaryotic protein phosphatase 4 (PP4) is a PP2A-type protein phosphatase that is part of a conserved complex with regulatory factors PSY2 and PP4R2. Various lines of Arabidopsis thaliana with mutated PP4 subunit genes ...
    • Primordial Gravitational Waves with LISA 

      Ricciardone, Angelo (Journal article; Peer reviewed, 2017)
      Primordial Gravitational Waves are the next target of modern cosmology. They represent a window on the early Universe and the only probe of the physics and microphysics of the inflationary period. When the production of ...
    • Pseudo-Riemannian VSI spaces 

      Hervik, Sigbjørn; Coley, Alan (Journal article; Peer reviewed, 2011)
      In this paper we consider pseudo-Riemannian spaces of arbitrary sig- nature for which all of their polynomial curvature invariants vanish (VSI spaces). We discuss an algebraic classification of pseudo-Riemannian spaces ...
    • Pseudo-Riemannian VSI spaces II 

      Hervik, Sigbjørn (Journal article; Peer reviewed, 2012)
      In this paper we consider pseudo-Riemannian spaces of arbitrary signature for which all of the polynomial curvature invariants vanish (VSI spaces). Using an algebraic classification of pseudo-Riemannian spaces in terms of ...
    • Regiospesific synthesis of dimethylphenanthrenes 

      Bøhme, Thomas Andre; Lorentzen, Marianne; Jørgensen, Kåre Bredeli (Peer reviewed; Journal article, 2017-05)
      The dimethylated phenanthrenes 2,3-dimethylphenanthrene (4a), 2,7-dimethylphenanthrene (4b), 2,6-dimethylphenanthrene (4c) and 1,7-dimethylphenanthrene (4d) have been prepared in gram-quantities by a short sequence of ...