Browsing UT Faculty/Researcher Works by Title
Now showing items 381-400 of 3589
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The c2d Spitzer Spectroscopic Survey Of Ices Around Low-Mass Young Stellar Objects. I. H2O And The 5-8 Mu M Bands
(2008-05)To study the physical and chemical evolution of ices in solar-mass systems, a spectral survey is conducted of a sample of 41 low-luminosity YSOs (L similar to 0.1-10 L-circle dot) using 3-38 mu m Spitzer and ground-based ... -
The c2d Spitzer Spectroscopic Survey Of Ices Around Low-Mass Young Stellar Objects. II. CO2
(2008-05)This paper presents Spitzer IRS lambda/Delta lambda similar to 600 spectroscopy of the CO2 15.2 mu m bending mode toward 50 embedded young low-mass stars, taken mostly from the "Cores to Disks'' (c2d) Legacy program. The ... -
The c2d Spitzer Spectroscopic Survey Of Ices Around Low-Mass Young Stellar Objects. III. CH4
(2008-05)CH4 is proposed to be the starting point of a rich organic chemistry. Solid CH4 abundances have previously been determined mostly toward high-mass star-forming regions. Spitzer IRS now provides a unique opportunity to probe ... -
The c2d Spitzer Spectroscopic Survey Of Ices Around Low-Mass Young Stellar Objects. IV. NH3 And CH3OH
(2010-08)NH3 and CH3OH are key molecules in astrochemical networks leading to the formation of more complex N- and O-bearing molecules, such as CH3CN and CH3OCH3. Despite a number of recent studies, little is known about their ... -
c2d Spitzer-IRS Spectra Of Disks Around T Tauri Stars IV. Crystalline Silicates
(2009-11)Aims. Dust grains in the planet-forming regions around young stars are expected to be heavily processed due to coagulation, fragmentation, and crystallization. This paper focuses on the crystalline silicate dust grains in ... -
c2d Spitzer-IRS Spectra Of Disks Around T Tauri Stars IV. Crystalline Silicates
(2009-11)Aims. Dust grains in the planet-forming regions around young stars are expected to be heavily processed due to coagulation, fragmentation, and crystallization. This paper focuses on the crystalline silicate dust grains in ... -
Calcification in human arterial disease and geological specimens: The nannobacterial (nanoparticle) link
(2013)The biogenicity of calcium - phosphate - precipitating nannobacteria (nanobacteria, self - replicating nanoparticles) has been supported by researchers: the tiny cells (30 - 70 nm in diameter) reproduce in cultures, ... -
Calcium-activated potassium conductance in presynaptic terminals at the crayfish neuromuscular junction
(Rockefeller University Press, 1991-12-01)Membrane potential changes that typically evoke transmitter release were studied by recording intracellularly from the excitor axon near presynaptic terminals of the crayfish opener neuromuscular junction. Depolarization ... -
Calderas
(2009-03) -
Calibrating The Cepheid Period-Luminosity Relation From The Infrared Surface Brightness Technique I. The P-Factor, The Milky Way Relations, And A Universal K-Band Relation
(2011-10)Aims. We determine period-luminosity relations for Milky Way Cepheids in the optical and near-IR bands. These relations can be used directly as reference for extra-galactic distance determination to Cepheid populations ... -
Calibrating The Cepheid Period-Luminosity Relation From The Infrared Surface Brightness Technique II. The Effect Of Metallicity And The Distance To The LMC
(2011-10)Context. The extragalactic distance scale builds directly on the Cepheid period-luminosity (PL) relation as delineated by the sample of Cepheids in the Large Magellanic Cloud (LMC). However, the LMC is a dwarf irregular ... -
Calibrations Of Atmospheric Parameters Obtained From The First Year Of Sdss-III APOGEE Observations
(2013-11)The Sloan Digital Sky Survey III (SDSS-III) Apache Point Observatory Galactic Evolution Experiment (APOGEE) is a three-year survey that is collecting 105 high-resolution spectra in the near-IR across multiple Galactic ... -
California Phone
(1980 to 19) -
The California Planet Survey. I. Four New Giant Exoplanets
(2010-10)We present precise Doppler measurements of four stars obtained during the past decade at Keck Observatory by the California Planet Survey (CPS). These stars, namely, HD 34445, HD 126614, HD 13931, and Gl 179, all show ... -
Calorie restriction and cancer prevention: a mechanistic perspective
(Cancer and Metabolism, 2013-03-07)Calorie restriction (CR) is one of the most potent broadly acting dietary interventions for inducing weight loss and for inhibiting cancer in experimental models. Translation of the mechanistic lessons learned from research ... -
Campi Flegrei
(2010-07) -
Can switching fuels save water? A life cycle quantification of freshwater consumption for Texas coal-and natural gas-fired electricity
(IOP Publishing, 2012-10-08)Thermal electricity generation is a major consumer of freshwater for cooling, fuel extraction and air emissions controls, but the life cycle water impacts of different fossil fuel cycles are not well understood. Much of ... -
Can the Subaltern Listen? Self-determination and the Provisioning of Expertise in Papua New Guinea
(2017)Voice is a major concern in contemporary liberal-democratic politics, one that stresses the political importance of speaking (“giving voice,” “speaking up”). But in the Yopno valley of Papua New Guinea, where NGO and ... -
Can We Dissociate Contingency Learning from Social Learning in Word Acquisition by 24-Month-Olds?
(Public Library of Science, 2012-11-21)We compared 24-month-old children’s learning when their exposure to words came either in an interactive (coupled) context or in a nonsocial (decoupled) context. We measured the children’s learning with two different methods: ...
