Browsing FAS Scholarly Articles by Keyword "Oxygen"

Now showing items 1-6 of 6

    • Direct visualization of quasi-ordered oxygen chain structures on Au(110)-(1×2) 

      Hiebel, Fanny; Montemore, Matthew; Kaxiras, Efthimios; Friend, Cynthia M. (Elsevier BV, 2016)
      The Au(110) surface offers unique advantages for atomically-resolved model studies of catalytic oxidation processes on gold. We investigate the adsorption of oxygen on Au(110) using a combination of scanning tunneling ...

    • Insights from Theory on the Relationship between Surface Reactivity and Gold Atom Release 

      Baker, Thomas A.; Kaxiras, Efthimios; Friend, Cynthia M. (Springer Nature, 2010)
      Density functional theory, informed by experimental studies, is used to investigate the interplay of surface morphology, the adsorption site of reactants, the nature of the interaction between adsorbates and the surface, ...

    • miR-190 Enhances HIF-Dependent Responses to Hypoxia in Drosophila by Inhibiting the Prolyl-4-hydroxylase Fatiga 

      De Lella Ezcurra, Ana Laura; Bertolin, Agustina Paola; Kim, Kevin; Katz, Maximiliano Javier; Gándara, Lautaro; Misra, Tvisha; Luschnig, Stefan; Perrimon, Norbert; Melani, Mariana; Wappner, Pablo (Public Library of Science, 2016)
      Cellular and systemic responses to low oxygen levels are principally mediated by Hypoxia Inducible Factors (HIFs), a family of evolutionary conserved heterodimeric transcription factors, whose alpha- and beta-subunits ...

    • Multizone Paper Platform for 3D Cell Cultures 

      Derda, Ratmir; Tang, Sindy K. Y.; Laromaine, Anna; Mosadegh, Bobak; Hong, Estrella; Mwangi, Martin; Mammoto, Akiko; Ingber, Donald Elliot; Whitesides, George McClelland (Public Library of Science (PLoS), 2011)
      In vitro 3D culture is an important model for tissues in vivo. Cells in different locations of 3D tissues are physiologically different, because they are exposed to different concentrations of oxygen, nutrients, and signaling ...

    • Searching for an oxygenation event in the fossiliferous Ediacaran of northwestern Canada 

      Johnston, David T; Poulton, S.W.; Tosca, N.J.; O'Brien, T.; Halverson, G.P.; Schrag, Daniel P.; Macdonald, Francis Alexander (Elsevier BV, 2013)
      Late Neoproterozoic (Ediacaran) strata from northwestern Canada provide a thick and rich sedimentological record, preserving intercalated carbonates and shale extending from the ~ 635 million year old Marinoan glacial ...

    • The X-ray and ultraviolet absorbing outflow in 3C 351 

      Mathur, Smita; Wilkes, Belinda Jane; Elvis, Martin S.; Fiore, Fabrizio (IOP Publishing, 1994)
      3C 351 (z = 0.371), and X-ray-'quiet' quasar, is one of the few quasars showing signs of a 'warm absorber' in its X-ray spectrum; i.e., partially ionized absorbing material in the line of sight whose opacity depends on its ...