Browsing Faculty of Arts and Sciences by Title

Now showing items 4766-4785 of 24506

    • Detection and Quantized Conductance of Neutral Atoms Near a Charged Carbon Nanotube 

      Ristroph, Trygve; Goodsell, Anne; Golovchenko, Jene Andrew; Hau, Lene V. (American Physical Society (APS), 2005)
      We describe a novel single atom detector that uses the high electric field surrounding a charged single-walled carbon nanotube to attract and subsequently field-ionize neutral atoms. A theoretical study of the field-ionization ...

    • Detection from space of a reduction in anthropogenic emissions of nitrogen oxides during the Chinese economic downturn 

      Lin, J.-T.; McElroy, Michael Brendon (Copernicus GmbH, 2011)
      Rapid economic and industrial development in China and relatively weak emission controls have resulted in significant increases in emissions of nitrogen oxides (NOx) in recent years, with the exception of late 2008 to mid ...

    • Detection of a Dynamic Topography Signal in Last Interglacial Sea-Level Records 

      Austermann, Jacqueline; Mitrovica, Jerry; Huybers, Peter; Rovere, Alessio (American Association for the Advancement of Science (AAAS), 2017-07-07)
      Estimating minimum ice volume during the last interglacial based on local sea-level indicators requires that these indicators are corrected for processes that alter local sea level relative to the global average. Although ...

    • Detection of a lightning influence on tropical tropospheric ozone 

      Martin, Randall V.; Jacob, Daniel James; Logan, Jennifer A.; Ziemke, Jerry M.; Washington, Richard (Wiley-Blackwell, 2000)
      Empirical orthogonal functions (EOFs) are used to analyze a 14-year record of tropical tropospheric ozone columns (TTOCs) determined from satellite measurements. The first EOF explains 54% of TTOC variance and represents ...

    • Detection of a particle shower at the Glashow resonance with IceCube 

      Unknown author (Springer Science and Business Media LLC, 2021-03-10)

    • Detection of a Temperature Inversion in the Broadband Infrared Emission Spectrum of Tres-4 

      Knutson, Heather A.; Charbonneau, David; Burrows, Adam; O'Donovan, Francis T.; Mandushev, Georgi (American Astronomical Society, 2009)
      We estimate the strength of the bandpass-integrated thermal emission from the extrasolar planet TrES-4 at 3.6, 4.5, 5.8, and 8.0 mu m using the Infrared Array Camera on the Spitzer Space Telescope. We find relative eclipse ...

    • Detection of an Extrasolar Planet Atmosphere 

      Charbonneau, David; Brown, Timothy M.; Noyes, Robert W.; Gilliland, Ronald L. (American Astronomical Society, 2002)
      We report high-precision spectrophotometric observations of four planetary transits of HD 209458, in the region of the sodium resonance doublet at 589.3 nm. We find that the photometric dimming during transit in a bandpass ...

    • Detection of atmospheric haze on an extrasolar planet: the 0.55-1.05 μm transmission spectrum of HD 189733b with the Hubble Space Telescope 

      Pont, F.; Knutson, H.; Gilliland, R. L.; Moutou, C.; Charbonneau, D. (Oxford University Press, 2008-01-09)

    • Detection of B-Mode Polarization at Degree Angular Scales by BICEP2 

      Ade, P. A. R.; Aikin, R. W.; Barkats, Denis A.; Benton, S. J.; Bischoff, Colin A.; Bock, J. J.; Brevik, J. A.; Buder, I; Bullock, E.; Dowell, C. D.; Duband, L.; Filippini, J. P.; Fliescher, S.; Golwala, S. R.; Halpern, M.; Hasselfield, M.; Hildebrandt, S. R.; Hilton, G. C.; Hristov, V. V.; Irwin, K. D.; Karkare, Kirit; Kaufman, J. P.; Keating, B. G.; Kernasovskiy, S. A.; Kovac, John; Kuo, C. L.; Leitch, E. M.; Lueker, M.; Mason, P.; Netterfield, C. B.; Nguyen, H. T.; O’Brient, R.; Ogburn, R. W.; Orlando, Abigail Claire; Pryke, C; Reintsema, C. D.; Richter, Sonja Valeska; Schwarz, R.; Sheehy, C. D.; Staniszewski, Z. K.; Sudiwala, R. V.; Teply, G. P.; Tolan, J. E.; Turner, A. D.; Vieregg, A. G.; Wong, C; Yoon, K. W. (American Physical Society (APS), 2014)
      We report results from the BICEP2 experiment, a cosmic microwave background (CMB) polarimeter specifically designed to search for the signal of inflationary gravitational waves in the B-mode power spectrum around ℓ∼80. The ...

    • Detection of Gravitational Wave Emission by Supermassive Black Hole Binaries Through Tidal Disruption Flares 

      Hayasaki, Kimitake; Loeb, Abraham (Nature Publishing Group, 2016)
      Galaxy mergers produce supermassive black hole binaries, which emit gravitational waves prior to their coalescence. We perform three-dimensional hydrodynamic simulations to study the tidal disruption of stars by such a ...

    • Detection of Gravitational Waves from the Coalescence of Population III Remnants with Advanced LIGO 

      Wyithe, J. Stuart B.; Loeb, Abraham (American Astronomical Society, 2004)
      The comoving mass density of massive black hole (MBH) remnants from pregalactic star formation could have been similar in magnitude to the mass density of supermassive black holes (SMBHs) in the present-day universe. We ...

    • Detection of HCN and diverse redox chemistry in the plume of Enceladus 

      Peter, Jonah; Nordheim, Tom A.; Hand, Kevin P. (Springer Science and Business Media LLC, 2023-12-14)
      The \textit{Cassini} spacecraft observed that Saturn’s moon Enceladus possesses a series of jets erupting from its South Polar Terrain. Previous studies of in situ data collected by \textit{Cassini}’s Ion and Neutral Mass ...

    • Detection of HCO+ towards Cygnus OB2 No. 12 

      Scappini, F.; Cecchi-Pestellini, C.; Codella, C.; Dalgarno, Alexander (Oxford University Press (OUP), 2000)
      HCO+ has been detected for the first time towards the star Cygnus OB2 No. 12 through emission of the 1−0 rotational transition at 89GHz. The CO(J=2−1) transition has also been observed. The observations are consistent with ...

    • Detection of human brain tumor infiltration with quantitative stimulated Raman scattering microscopy 

      Ji, Minbiao; Lewis, Spencer; Camelo-Piragua, Sandra; Ramkissoon, Shakti; Snuderl, Matija; Venneti, Sriram; Fisher-Hubbard, Amanda; Garrard, Mia; Fu, Dan; Wang, Anthony C.; Heth, Jason A.; Maher, Cormac O.; Sanai, Nader; Johnson, Timothy D.; Freudiger, Christian; Sagher, Oren; Xie, Xiaoliang Sunney; Orringer, Daniel A. (American Association for the Advancement of Science (AAAS), 2015)
      Differentiating tumor from normal brain is a major barrier to achieving optimal outcome in brain tumor surgery. New imaging techniques for visualizing tumor margins during surgery are needed to improve surgical results. ...

    • Detection of Lipid-Linked Peptidoglycan Precursors by Exploiting an Unexpected Transpeptidase Reaction 

      Qiao, Yuan; Lebar, Matthew D.; Schirner, Kathrin; Schaefer, Kaitlin; Tsukamoto, Hirokazu; Kahne, Daniel; Walker, Suzanne (American Chemical Society, 2014)
      Penicillin-binding proteins (PBPs) are involved in the synthesis and remodeling of bacterial peptidoglycan (PG). Staphylococcus aureus expresses four PBPs. Genetic studies in S. aureus have implicated PBP4 in the formation ...

    • A detection of Milankovitch frequencies in global volcanic activity 

      Kutterolf, Steffen; Jegen, Marion; Mitrovica, Jerry; Kwasnitschka, Tom; Freundt, Armin; Huybers, Peter John (Geological Society of America, 2013)
      A rigorous detection of Milankovitch periodicities in volcanic output across the Pleistocene-Holocene ice age has remained elusive. We report on a spectral analysis of a large number of well-preserved ash plume deposits ...

    • Detection of N2D+ in a protoplanetary disk 

      Huang, Jane; Oberg, Karin (IOP Publishing, 2015)
      Observations of deuterium fractionation in the solar system, and in interstellar and circumstellar material, are commonly used to constrain the formation environment of volatiles. Toward protoplanetary disks, this approach ...

    • Detection of Neuron Membranes in Electron Microscopy Images Using Multi-scale Context and Radon-Like Features 

      Seyedhosseini, Mojtaba; Kumar, Ritwik; Jurrus, Elizabeth; Giuly, Rick; Ellisman, Mark; Pfister, Hanspeter; Tasdizen, Tolga (Springer Science + Business Media, 2011)
      Automated neural circuit reconstruction through electron microscopy (EM) images is a challenging problem. In this paper, we present a novel method that exploits multi-scale contextual information together with Radon-like ...

    • Detection of Planetary Emission From the Exoplanet Tres-2 Usingspitzer/irac 

      O’Donovan, Francis T.; Charbonneau, David; Harrington, Joseph; Madhusudhan, N.; Seager, Sara; Deming, Drake; Knutson, Heather A. (American Astronomical Society, 2010)
      We present here the results of our observations of TrES-2 using the Infrared Array Camera on Spitzer. We monitored this transiting system during two secondary eclipses, when the planetary emission is blocked by the star. ...

    • Detection of Planetary Transits Across a Sun-like Star 

      Charbonneau, David; Brown, Timothy M.; Latham, David W.; Mayor, Michel (American Astronomical Society, 2000)
      We report high-precision, high-cadence photometric measurements of the star HD 209458, which is known from radial velocity measurements to have a planetary-mass companion in a close orbit. We detect two separate transit ...