• The Ubiquity Of The Rapid Neutron-Capture Process 

      Roederer, Ian U.; Cowan, John J.; Karakas, Amanda I.; Kratz, Karl-Ludwig; Lugaro, Maria; Simmerer, Jennifer; Farouqi, Khalil; Sneden, Christopher (2010-12)
      To better characterize the abundance patterns produced by the r-process, we have derived new abundances or upper limits for the heavy elements zinc (Zn, Z = 30), yttrium (Y, Z = 39), lanthanum (La, Z = 57), europium (Eu, ...
    • The UBV(Ri)c Colors Of The Sun 

      Ramirez, Ivan; Michel, R.; Sefako, R.; Maia, M. T.; Schuster, W. J.; van Wyk, F.; Melendez, Jorge; Casagrande, L.; Castilho, B. V. (2012-06)
      Photometric data in the UBV(RI)(C) system have been acquired for 80 solar analog stars for which we have previously derived highly precise atmospheric parameters T-eff, log g, and [Fe/H] using high-resolution, high ...
    • The Ultracool-Field Dwarf Luminosity-Function And Space Density From The Canada-France Brown Dwarf Survey 

      Reyle, C.; Delorme, P.; Willott, C. J.; Albert, L.; Delfosse, X.; Forveille, T.; Artigau, E.; Malo, L.; Hill, G. J.; Doyon, R. (2010-11)
      Context. Thanks to recent and ongoing large scale surveys, hundreds of brown dwarfs have been discovered in the last decade. The Canada-France Brown Dwarf Survey is a wide-field survey for cool brown dwarfs conducted with ...
    • Ultrafast Radial Transport In A Micron-Scale Aluminum Plasma Excited At Relativistic Intensity 

      Bowes, B. T.; Downer, M. C.; Langhoff, H.; Wilcox, M.; Hou, B.; Nees, J.; Mourou, G. (2004-06)
      Using femtosecond microscopy, we observe a thermal/ionization front expand radially at similar to10(8)cm/s from a lambda(2)-size spot of an aluminum target excited at >10(18)W/cm(2). Numerical modeling shows transport is ...
    • The Ultraviolet Spectral Energy Distributions Of Quiescent Black Holes And Neutron Stars 

      Hynes, Robert I.; Robinson, Edward L. (2012-04)
      We present Hubble Space Telescope/Advanced Camera for Surveys ultraviolet photometry of three quiescent black hole X-ray transients, X-ray Nova Muscae 1991 (GU Mus), GRO J0422+32 (V518 Per), and X-ray Nova Vel 1993 (MM ...
    • Ultraviolet Spectroscopy Of Type IIb Supernovae: Diversity And The Impact Of Circumstellar Material 

      Ben-Ami, Sagi; Hachinger, Stephan; Gal-Yam, Avishay; Mazzali, Paolo A.; Filippenko, Alexei V.; Horesh, Assaf; Matheson, Thomas; Modjaz, Maryam; Sauer, Daniel N.; Silverman, Jeffrey M.; Smith, Nathan; Yaron, Ofer (2015-04)
      We present new Hubble Space Telescope (HST) multi-epoch ultraviolet (UV) spectra of the bright Type IIb SN 2013df, and undertake a comprehensive analysis of the set of four SNe IIb for which HST UV spectra are available ...
    • Ultraviolet Survey Of CO And H-2 In Diffuse Molecular Clouds: The Reflection Of Two Photochemistry Regimes In Abundance Relationships 

      Sheffer, Y.; Rogers, M.; Federman, S. R.; Abel, N. P.; Gredel, R.; Lambert, David L.; Shaw, G. (2008-11)
      We carried out a comprehensive far-UV survey of (CO)-C-12 and H-2 column densities along diffuse molecular Galactic sight lines. This sample includes new measurements of CO from HST spectra along 62 sight lines and new ...
    • The Ultraviolet-Bright, Slowly Declining Transient PS1-11Af As A Partial Tidal Disruption Event 

      Chornock, Ryan; Berger, E.; Gezari, S.; Zauderer, B. A.; Rest, A.; Chomiuk, L.; Kamble, A.; Soderberg, Alicia M.; Czekala, I.; Dittmann, J.; Drout, M.; Foley, Ryan J.; Fong, W.; Huber, M. E.; Kirshner, Robert P.; Lawrence, A.; Lunnan, R.; Marion, G. H.; Narayan, G.; Riess, Adam G.; Roth, K. C.; Sanders, N. E.; Scolnic, D.; Smartt, S. J.; Smith, K.; Stubbs, C. W.; Tonry, J. L.; Burgett, W. S.; Chambers, K. C.; Flewelling, H.; Hodapp, K. W.; Kaiser, N.; Magnier, E. A.; Martin, D. C.; Neill, J. D.; Price, P. A.; Wainscoat, R. (2014-01)
      We present the Pan-STARRS1 discovery of the long-lived and blue transient PS1-11af, which was also detected by Galaxy Evolution Explorer with coordinated observations in the near-ultraviolet (NUV) band. PS1-11af is associated ...
    • The Unbearable Lightness of Data: Touloukian’s Quest and Why It Still Matters 

      Flaxbart, David (2012)
      Essay on the difficulty of locating published scientific data, and how this was addressed by Y.S. Touloukian and his index titled "Thermophysical Properties Research Literature Retrieval Guide," with a description thereof.
    • Unbound Universe 

      Gott, J. Richard; Gunn, James E.; Schramm, David N.; Tinsley, Beatrice M. (1974-12)
    • Uncoupling protein 3 attenuates generation of reactive oxygen species by interacting with thioredoxin 2 in the mitochondrial intermembrane space 

      Hirasaka, Katsuya; Mills, Edward M.; Kohno, Shohei; Abe, Tomoki; Ikeda, Chika; Maeda, Tasuku; Kondo, Shigetada; Maita, Ayako; Okummura, Yuushi; Nikawa, Takeshi (Arthritis Research and Therapy, 2012-02-09)
      Poster presentation Uncoupling protein 3 (UCP3) is primarily expressed in the inner membrane of skeletal muscle mitochondria. It has been proposed that UCP3 reduces production of reactive oxygen species (ROS) and oxidative ...
    • Uncovering Extremely Metal-Poor Stars in the Milky Way's Ultrafaint Dwarf Spheroidal Satellite Galaxies 

      Kirby, Evan N.; Simon, Joshua D.; Geha, Marla; Guhathakurta, Puragra; Frebel, Anna (2008-09)
      We present new metallicity measurements for 298 individual red giant branch stars in eight of the least luminous dwarf spheroidal galaxies (dSphs) in the Milky Way ( MW) system. Our technique is based on medium-resolution ...
    • Uncovering Patterns in Cybershopping 

      Moe, Wendy W.; Fader, Peter S. (2001)
      Academics and practitioners alike have been arguing about whether the Internet brings a revolutionary change in the fundamental way we do business or if it simply offers a new distribution channel and communication medium. ...
    • Uncovering The Chemical Signature Of The First Stars In The Universe 

      Karlsson, Torgny; Johnson, Jarrett L.; Bromm, Volker (2008-05)
      The chemical abundance patterns observed in metal-poor Galactic halo stars contain the signature of the first supernovae, and thus allow us to probe the first stars that formed in the universe. We construct a theoretical ...
    • Understanding Ferroelectricity in Layered Perovskites: New Ideas and Insights from Theory and Experiments 

      Benedek, Nicole A.; Rondinelli, James M.; Djani, Hania; Ghosez, Phillippe; Lightfoot, Phillip (2015-06)
      ABO(3) perovskites have fascinated solid-state chemists and physicists for decades because they display a seemingly inexhaustible variety of chemical and physical properties. However, despite the diversity of properties ...
    • Understanding I:the Rhetorical Variety of Self-References in College Literature Papers 

      Beerits, Laura (2016-06)
      This article explores the relationship between first-person pronoun use and "personal" writing. First, a quantitative examination of 160 papers written for a college literature class reveals how frequently students actually ...
    • Understanding Residential Mobility: Joint Model of the Reason for Residential Relocation and Stay Duration 

      Eluru, Naveen; Sener, Ipek N.; Bhat, Chandra R.; Pendyala, Ram M.; Axhausen, Kay W. (National Academy of Sciences, 2009)
      Residential relocation or mobility is a critical component of land use dynamics. Models of land use dynamics need to consider residential relocation or mobility behavior of households to be able to forecast future population ...
    • Understanding Svocs 

      Xu, Ying; Zhang, Jianshun (2011-12)
      Semi-volatile organic compounds (SVOCs) are an important class of indoor pollutants that are of great health concern. However, they have not received much attention within the ASHRAE community. This column provides an ...
    • Understanding the Linguistic Needs of Diverse Individuals with Autism Spectrum Disorder: Some Comments on the Research Literature and Suggestions for Clinicians 

      Lim, Nataly; O'Reilly, Mark F.; Sigafoos, Jeff; Lancioni, Giulio E. (Journal of Autism & Developmental Disorders, 2018)
      The practice of advising bilingual parents of children with autism spectrum disorder (ASD) to speak in a single language, often the majority language of the region, with their child with ASD seems to be common. Such advice, ...
    • Understanding the Multiple Dimensions of Residential Choice 

      Fu, Xuemei; Bhat, Chandra R.; Pendyala, Ram M.; Vadlamani, Sravani; Garikapati, Venu M. (The University of Texas at Austin, 2014-07)
      Residential choice may be characterized as a household’s simultaneous decisions of location, neighborhood, and dwelling. Traditional models do not account for the latent unmeasured constructs which capture individuals’ ...