Now showing items 1-5 of 17990

    • An introduction to presentations of monoid acts : quotients and subacts 

      Miller, Craig; Ruskuc, Nikola (2019-01-27) - Journal article
      The purpose of this paper is to introduce the theory of presentations of monoids acts. We aim to construct ‘nice’ general presentations for various act constructions pertaining to subacts and Rees quotients. More precisely, ...
    • A super-Earth and two sub-Neptunes transiting the nearby and quiet M dwarf TOI-270 

      Günther, Maximilian N.; Pozuelos, Francisco J.; Dittmann, Jason A.; Dragomir, Diana; Kane, Stephen R.; Daylan, Tansu; Feinstein, Adina D.; Huang, Chelsea X.; Morton, Timothy D.; Bonfanti, Andrea; Bouma, L. G.; Burt, Jennifer; Collins, Karen A.; Lissauer, Jack J.; Matthews, Elisabeth; Montet, Benjamin T.; Vanderburg, Andrew; Wang, Songhu; Winters, Jennifer G.; Ricker, George R.; Vanderspek, Roland K.; Latham, David W.; Seager, Sara; Winn, Joshua N.; Jenkins, Jon M.; Armstrong, James D.; Barkaoui, Khalid; Batalha, Natalie; Bean, Jacob L.; Caldwell, Douglas A.; Ciardi, David R.; Collins, Kevin I.; Crossfield, Ian; Fausnaugh, Michael; Furesz, Gabor; Gan, Tianjun; Gillon, Michaël; Guerrero, Natalia; Horne, Keith; Howell, Steve B.; Ireland, Michael; Isopi, Giovanni; Jehin, Emmanuël; Kielkopf, John F.; Lepine, Sebastien; Mallia, Franco; Matson, Rachel A.; Myers, Gordon; Palle, Enric; Quinn, Samuel N.; Relles, Howard M.; Rojas-Ayala, Bárbara; Schlieder, Joshua; Sefako, Ramotholo; Shporer, Avi; Suárez, Juan C.; Tan, Thiam-Guan; Ting, Eric B.; Twicken, Joseph D.; Waite, Ian A. (2019-07-29) - Journal article
      One of the primary goals of exoplanetary science is to detect small, temperate planets passing (transiting) in front of bright and quiet host stars. This enables the characterization of planetary sizes, orbits, bulk ...
    • N-Alkyl-α-amino acids in Nature and their biocatalytic preparation 

      Hyslop, Julia F.; Lovelock, Sarah L.; Watson, Allan J. B.; Sutton, Peter W.; Roiban, Gheorghe-Doru (2019-03-10) - Journal article
      N-alkylated-α-amino acids are useful building blocks for the pharmaceutical and fine chemical industries. Enantioselective methods of N-alkylated-α-amino acid synthesis are therefore highly valuable and widely investigated. ...
    • Reimagining the postwar international order : the world federalism of Ozaki Yukio and Kagawa Toyohiko 

      Lawson, Konrad Mitchell (Routledge Taylor & Francis Group, 2018-07-26) - Book item
    • Dolphin echolocation behaviour during active long-range target approaches 

      Ladegaard, Michael; Mulsow, Jason; Houser, Dorian S.; Jensen, Frants Havmand; Johnson, Mark; Madsen, Peter Teglberg; Finneran, James J. (2019-01-25) - Journal article
      Echolocating toothed whales generally adjust click intensity and rate according to target range to ensure that echoes from targets of interest arrive before a subsequent click is produced, presumably facilitating range ...