Now showing items 4123-4142 of 17324

    • Early-Type Galaxies in the Sloan Digital Sky Survey. III. The Fundamental Plane 

      Bernardi, Mariangela; Sheth, Ravi K.; Annis, James; Burles, Scott; Eisenstein, Daniel James; Finkbeiner, Douglas; Hogg, David W.; Lupton, Robert H.; Schlegel, David J.; SubbaRao, Mark; Bahcall, Neta A.; Blakeslee, John P.; Brinkmann, J.; Castander, Francisco J.; Connolly, Andrew J.; Csabai, István; Doi, Mamoru; Fukugita, Masataka; Frieman, Joshua; Heckman, Timothy; Hennessy, Gregory S.; Ivezic, Zeljko; Knapp, G. R.; Lamb, Don Q.; McKay, Timothy; Munn, Jeffrey A.; Nichol, Robert; Okamura, Sadanori; Schneider, Donald P.; Thakar, Aniruddha R.; York, Donald G. (IOP Publishing, 2003)
      A magnitude-limited sample of nearly 9000 early-type galaxies in the redshift range 0.01 ≤ z ≤ 0.3 was selected from the Sloan Digital Sky Survey (SDSS) using morphological and spectral criteria. The fundamental plane ...
    • Early-Type Galaxies in the Sloan Digital Sky Survey. IV. Colors and Chemical Evolution 

      Bernardi, Mariangela; Sheth, Ravi K.; Annis, James; Burles, Scott; Finkbeiner, Douglas; Lupton, Robert H.; Schlegel, David J.; SubbaRao, Mark; Bahcall, Neta A.; Blakeslee, John P.; Brinkmann, J.; Castander, Francisco J.; Connolly, Andrew J.; Csabai, István; Doi, Mamoru; Fukugita, Masataka; Frieman, Joshua; Heckman, Timothy; Hennessy, Gregory S.; Ivezic, Zeljko; Knapp, G. R.; Lamb, Don Q.; McKay, Timothy; Munn, Jeffrey A.; Nichol, Robert; Okamura, Sadanori; Schneider, Donald P.; Thakar, Aniruddha R.; York, Donald G. (IOP Publishing, 2003)
      The colors and chemical abundances of early-type galaxies at redshifts z < 0.3 are studied using a sample of nearly 9000 galaxies, selected from the Sloan Digital Sky Survey using morphological and spectral criteria. In ...
    • Earth rotation changes since ?500 CE driven by ice mass variations 

      Hay, Carling; Mitrovica, Jerry X.; Morrow, Eric; Kopp, Robert E.; Huybers, Peter John; Alley, Richard B. (Elsevier BV, 2016)
      We predict the perturbation to the Earth's length-of-day (LOD) over the Common Era using a recently derived estimate of global sea-level change for this time period. We use this estimate to derive a time series of “clock ...
    • Earth-abundant water-splitting catalysts coupled to silicon solar cells for solar-to-fuels conversion 

      Cox, Casandra R (2014-10-21)
      Direct solar-to-fuels conversion can be achieved by coupling semiconductors with water-splitting catalysts. A 10% or higher solar to fuels conversion is minimally necessary for the realization of a robust future technology. ...
    • An Earth-sized planet with an Earth-like density 

      Pepe, Francesco; Cameron, Andrew Collier; Latham, David Winslow; Molinari, Emilio; Udry, Stéphane; Bonomo, Aldo S.; Buchhave, Lars A.; Charbonneau, David; Cosentino, Rosario; Dressing, Courtney; Dumusque, Xavier; Figueira, Pedro; Fiorenzano, Aldo F. M.; Gettel, Sara; Harutyunyan, Avet; Haywood, Raphaelle D.; Horne, Keith; Lopez-Morales, Mercedes; Lovis, Christophe; Malavolta, Luca; Mayor, Michel; Micela, Giusi; Motalebi, Fatemeh; Nascimbeni, Valerio; Phillips, David F.; Piotto, Giampaolo; Pollacco, Don; Queloz, Didier; Rice, Ken; Sasselov, Dimitar D.; Ségransan, Damien; Sozzetti, Alessandro; Szentgyorgyi, Andrew H.; Watson, Christopher A. (Springer Nature, 2013)
      Recent analyses1–4 of data from the NASA Kepler spacecraft5 have established that planets with radii within 25 per cent of Earth’s (R⊕) are commonplace throughout the Galaxy, orbiting at least 16.5 per cent of Sun-like ...
    • Earthquake Characteristics as Imaged by the Back-Projection Method 

      Kiser, Eric (2013-02-15)
      This dissertation explores the capability of dense seismic array data for imaging the rupture properties of earthquake sources using a method known as back-projection. Only within the past 10 or 15 years has implementation ...
    • Earthquake Cycle Deformation in the Tibetan Plateau with a Weak Mid-Crustal Layer 

      DeVries, Phoebe M. R.; Meade, Brendan J. (Wiley-Blackwell, 2013)
      Geodetic observations of interseismic deformation across the Tibetan plateau contain information about both tectonic and earthquake cycle processes. Time-variations in surface velocities between large earthquakes are ...
    • Earthquake Ruptures with Thermal Weakening and the Operation of Major Faults at Low Overall Stress Levels 

      Noda, Hiroyuki; Dunham, Eric M.; Rice, James R. (American Geophysical Union, 2009)
      We model ruptures on faults that weaken in response to flash heating of microscopic asperity contacts (within a rate-and-state framework) and thermal pressurization of pore fluid. These are arguably the primary weakening ...
    • Earthquake Slip Between Dissimilar Poroelastic Materials 

      Dunham, Eric M.; Rice, James R. (American Geophysical Union, 2008)
      A mismatch of elastic properties across a fault induces normal stress changes during spatially nonuniform in-plane slip. Recently, Rudnicki and Rice showed that similar effects follow from a mismatch of poroelastic properties ...
    • An Easier Way to Calibrate 

      Fudenberg, Drew; Levine, David (Elsevier, 1999)
      Forecasts are said to be calibrated if the frequency predictions are approximately correct. This is a refinement of an idea first introduced by David Blackwell in 1955. We show that “<i>K</i>-initialized myopic strategies” ...
    • Easily searched encodings for number partitioning 

      Ruml, Wheeler; Ngo, J. Thomas; Marks, Joe; Shieber, Stuart (Springer, 1996)
      Can stochastic search algorithms outperform existing deterministic heuristics for the NP-hard problem Number Partitioning if given a sufficient, but practically realizable amount of time? In a thorough empirical investigation ...
    • Eastern Asian emissions of anthropogenic halocarbons deduced from aircraft concentration data 

      Palmer, Paul I.; Jacob, Daniel James; Mickley, Loretta J.; Blake, Donald R.; Sachse, Glen W.; Fuelberg, Henry E.; Kiley, Christopher M. (Wiley-Blackwell, 2003)
      The Montreal Protocol restricts production of ozone-depleting halocarbons worldwide. Enforcement of the protocol has relied mainly on annual government statistics of production and consumption of these compounds (bottom-up ...
    • Easy Freshness with Pequod Cache Joins 

      Kate, Bryan Nathan (2015-01-14)
      This thesis presents the design of Pequod, a distributed, application-level Web cache. Web developers store data in application-level caches to avoid expensive operations on persistent storage. While useful for reducing ...
    • Easy Freshness with Pequod Cache Joins 

      Kate, Bryan; Kohler, Eddie W; Kester, Michael S; Narula, Neha; Mao, Yandong; Morris, Robert (USENIX, 2014)
      Pequod is a distributed application-level key-value cache that supports declaratively defined, incrementally maintained, dynamic, partially-materialized views. These views, which we call cache joins, can simplify application ...
    • Ebola Virus Epidemiology and Evolution in Nigeria 

      Folarin, Onikepe A.; Ehichioya, Deborah; Schaffner, Stephen F.; Winnicki, Sarah M.; Wohl, Shirlee; Eromon, Philomena; West, Kendra L.; Gladden-Young, Adrianne; Oyejide, Nicholas E.; Matranga, Christian B.; Deme, Awa Bineta; James, Ayorinde; Tomkins-Tinch, Christopher; Onyewurunwa, Kenneth; Ladner, Jason T.; Palacios, Gustavo; Nosamiefan, Iguosadolo; Andersen, Kristian G.; Omilabu, Sunday; Park, Daniel J.; Yozwiak, Nathan L.; Nasidi, Abdusallam; Garry, Robert F.; Tomori, Oyewale; Sabeti, Pardis C.; Happi, Christian T. (Oxford University Press, 2016)
      Containment limited the 2014 Nigerian Ebola virus (EBOV) disease outbreak to 20 reported cases and 8 fatalities. We present here clinical data and contact information for at least 19 case patients, and full-length EBOV ...
    • Ebola, jobs and economic activity in Liberia 

      Bowles, Jeremy; Hjort, Jonas; Melvin, Timothy; Werker, Eric (BMJ Publishing Group, 2016)
      Background: The 2014 Ebola virus disease (EVD) outbreak in the neighbouring West African countries of Guinea, Liberia and Sierra Leone represents the most significant setback to the region's development in over a decade. ...
    • Echo Reduplication: When Too-Local Movement Requires PF-Distinctness 

      Grohmann, Kleanthes K.; Nevins, Andrew Ira (Linguistics Dept., University of Maryland, 2004)
      This paper provides supporting evidence for a number of hypotheses made in recent models of derivational syntax. The phenomenon under study is shm-reduplication in English, a particular instance of the more general, ...
    • Echoes of Early Irish Influence in Anglo-Saxon Literary Landscapes 

      McMullen, Albert Joseph (2015-05-07)
      This study traces the cultural interplay between Irish and Old English literary landscapes. Combining an ecocritical approach to reading representations of the landscape with a comparatist perspective, each chapter shows ...
    • Echoes of the Brain: Local-Scale Representation of Whole-Brain Functional Networks within Transmodal Cortex 

      Braga, Rodrigo M.; Leech, Robert (SAGE Publications, 2015)
      Transmodal (nonsensory-specific) regions sit at the confluence of different information streams, and play an important role in cognition. These regions are thought to receive and integrate information from multiple functional ...
    • Echoes of the Brain: Local-Scale Representation of Whole-Brain Functional Networks within Transmodal Cortex 

      Braga, Rodrigo M.; Leech, Robert (SAGE Publications, 2015)
      Transmodal (nonsensory-specific) regions sit at the confluence of different information streams, and play an important role in cognition. These regions are thought to receive and integrate information from multiple functional ...