11,956 research outputs found
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Data files for “Evidence for a Large Exomoon Orbiting Kepler-1625b” by Teachey & Kipping (2018)
No full textHubble WFC3 observations of Kepler-1625 taken in October 2017 were reported in Teachey & Kipping (2018). In that work, we the authors find evidence for an exomoon associated with the planetary transit of Kepler-1625b. We here provide the processed frame images, light curves, centroid time series, stellar isochrones and model posteriors/results data used in our study. Each folder contains a short readme file aimed at professional astronomers familiar with these types of analyses
Leveraging diversity in American academic medicine. The Harold Amos Medical Faculty Development Program
No full textPeer reviewe
Landsat MSS classification of fire fuel types in Wood Buffalo National Park, northern Canada
No full textJ1: Global Ecology & Biogeography Letters; M3: Article; Milne, David Franklin, Steven E. Wilson, Bradley A. Ghitter, Geoff Heathcott, Mark McCaffrey, Thomas M. Ow, Charlotte F. Y.; Source Information: Mar1994, Vol. 4 Issue 2, p33; Subject Term: FOREST fires; Author-Supplied Keyword: Canada (Wood Buffalo National Park); Author-Supplied Keyword: Forest fire; Author-Supplied Keyword: Fuel type classification; Author-Supplied Keyword: Landsat data; Number of Pages: 0p; Document Type: Articl
Dynamics and folding of single two-stranded coiled-coil peptides studied by fluorescent energy transfer confocal microscopy
No full textWe report single-molecule measurements on the folding and unfolding conformational equilibrium distributions and dynamics of a disulfide crosslinked version of the two-stranded coiled coil from GCN4. The peptide has a fluorescent donor and acceptor at the N termini of its two chains and a Cys disulfide near its C terminus. Thus, folding brings the two N termini of the two chains close together, resulting in an enhancement of fluorescent resonant energy transfer. End-to-end distance distributions have thus been characterized under conditions where the peptide is nearly fully folded (0 M urea), unfolded (7.4 M urea), and in dynamic exchange between folded and unfolded states (3.0 M urea). The distributions have been compared for the peptide freely diffusing in solution and deposited onto aminopropyl silanized glass. As the urea concentration is increased, the mean end-to-end distance shifts to longer distances both in free solution and on the modified surface. The widths of these distributions indicate that the molecules are undergoing millisecond conformational fluctuations. Under all three conditions, these fluctuations gave nonexponential correlations on 1- to 100-ms time scale. A component of the correlation decay that was sensitive to the concentration of urea corresponded to that measured by bulk relaxation kinetics. Thetrajectories provided effective intramolecular diffusion coefficients as a function of the end-to-end distances for the folded and unfolded states. Single-molecule folding studies provide information concerning the distributions of conformational states in the folded, unfolded, and dynamically interconverting states.Author manuscript. Published in final edited form as: Proc Natl Acad Sci U S A. 2000 November 21; 97(24): 13021-13026.The final published version of this article is located at: http://www.pnas.org/cgi/reprint/97/24/13021NIH GM54616; to William F. DeGradoNIH GM12592; to Robin M. HochstrasserNIH GM48130; to William F. Degrado and Robin M. HochstrasserThis work was supported by GM54616 (to W.F.D.), GM12592 (to R.M.H.) and GM48130 (to W.F.D. and R.M.H.) with instrumentation developed under RR01348. D.S.T. was supported by National Institutes of Health Grant NRSA F32-GM18589.Also available in PubMed Central. PMCID:PMC2717
TRAUMATIC IDENTITY AND AURA IN DAVID LODGE’S AUTHOR, AUTHOR
No full textThis paper delves into David Lodge’s Author, Author (2004) as an example of neo-Victorian celebrity biofiction, more concretely on Henry James. The genre belongs to the wave of Victorian revival in current literature which also affects cultural studies in general. My main contention is that Lodge’s novel responds to current cultural anxieties, particularly the crisis of identity and authorship and the end of Walter Benjamin’s concept of aura, by sublimating them into late-nineteenth-century traumata. The choice of James is, the article argues, not casual. He represents the redeeming figure of a lost auratic world; the human in crisis, traumatized because he does not fit in the new status quo.Este artículo analiza la novela Author, Author (2004) de David Lodge como ejemplo de bioficción neo-victoriana centrada en una celebridad, en este caso concreto, Henry James. El género forma parte del renacimiento victoriano actual que afecta a los estudios culturales en su conjunto. Mi argumento central es que la novela de Lodge constituye una respuesta a las ansiedades culturales actuales, en particular a las que se refieren a la crisis identitaria y autoría literaria, así como a la pérdida del aura artística de Walter Benjamin, sublimándolas a través de los traumas de finales del siglo XIX. La elección de James, como demuestra el artículo, no es casual. Es el último representante de un mundo perdido en el que el aura aún tenía un espacio; el ser humano en crisis y traumatizado porque no encaja en un status quo nuevo
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Two Thousand Kepler Phase Curves from Phasma
No full textThis data repository accompanies the RNAAS article "Two Thousand Kepler Phase Curves from Phasma" by Kipping, Sandford & Jansen. The repository contains files for 1998 unique Kepler Objects of Interest (KOIs), although the file names are based on the KIC (Kepler Input Catalog) identities. Each object has two associated files:
*.dat file containing a four-column plain-text ASCII of the final phase curves of each KOI binned to 500 evenly spaced points in phase. Column 1 = orbital periods since time of transit minimum; column 2 = binned relative flux in parts per million (ppm); column 3 = standard deviation (in ppm) of the binned flux divided by the square root of the number of points used to construct the bin; column 4 = mean photon noise of the unbinned data used to construct the bin divided by the square root of the number of points used.
*.pdf file containing a summary figure which is described in the accompanying RNAAS article
Data are processed using the phasma algorithm first described in Jansen & Kipping (2018) and we direct the reader to the original paper for details.</p
Distinguished Lecture Series 2011: David M. Oshinsky, Pulitzer Prize-winning author
No full textDavid M. Oshinsky, Pulitzer Prize-winning author and History professor at The University of Texas at Austin, will be the speaker for the fall Distinguished Lecture Series at The University of Texas at Brownsville and Texas Southmost College. Oshinsky won the Pulitzer Prize in History for his book, Polio: An American Story. He will speak at 7 p.m., Thursday, October 13, at the Science and Engineering Technology Building Lecture Hall.https://scholarworks.utrgv.edu/utbmedia/1102/thumbnail.jp
Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses
No full textFollowing an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. The simulation model was used in a $2.3 million Ross Street chilled water pipe replacement project at Texas A&M University. A second project conducted at the University of Texas at San Antonio was used as an example to demonstrate how to identify and design an optimal distribution system by using a simulation model. The author found that the minor losses of these closed loop thermal distribution systems are significantly higher than potable water distribution systems. In the second part of the report, the author presents the latest development of software called the Plant Optimization Program, which can simulate cogeneration plant operation, estimate its operation cost and provide optimized operation suggestions. The author also developed detailed simulation models for a gas turbine and heat recovery steam generator and identified significant potential savings. Finally, the author also used a steam turbine as an example to present a multi-regression method on constructing simulation models by using basic statistics and optimization algorithms. This report presents a survey of the author??s working experience at the Energy Systems Laboratory (ESL) at Texas A&M University during the period of January 2002 through March 2004. The purpose of the above work was to allow the author to become familiar with the practice of engineering. The result is that the author knows how to complete a project from start to finish and understands how both technical and nontechnical aspects of a project need to be considered in order to ensure a quality deliverable and bring a project to successful completion. This report concludes that the objectives of the internship were successfully accomplished and that the requirements for the degree of Degree of Engineering have been satisfied
David M. Kerns
No full textDAVID M. KERNS
NBS: 1946 - 1980
B: October 7, 1913, Minneapolis, Minnesota
D: June 3, 2004
EDUCATION:
University of Minnesota, BEE, 1935
Catholic University, PhD (Physics), 1951
PRINCIPAL FIELD:
Electromagnetic waveguide and antenna theory
POSITIONS HELD AT NBS (BOULDER)
Assistant Chief, Radio Standards Laboratory and Electromagnetic Fields Division.
Senior Research Scientist, Electromagnetic Fields Division
HONORS:
U.S. Department of Commerce: Silver Medal, 1960; Gold Medal, 1973
IEEE Harry Diamond Memorial Award, 1978
NBS Stratton Award, 1981
PUBLICATIONS:
Many technical papers; principal author (with R.W. Beatty) of Basic Theory of Waveguide Junctions and Introductory Microwave Network Analysis, Pergamon, 1967; NBS Monograph 162, Plane Wave Scattering Matrix Theory of Antennas and Antenna Antenna Interaction
The mass of Kepler-93b and the composition of terrestrial planets
No full textKepler-93b is a 1.478 ± 0.019 R ⊕ planet with a 4.7 day period around a bright (V = 10.2), astroseismically characterized host star with a mass of 0.911 ± 0.033 M ☉ and a radius of 0.919 ± 0.011 R ☉. Based on 86 radial velocity observations obtained with the HARPS-N spectrograph on the Telescopio Nazionale Galileo and 32 archival Keck/HIRES observations, we present a precise mass estimate of 4.02 ± 0.68 M ⊕. The corresponding high density of 6.88 ± 1.18 g cm–3 is consistent with a rocky composition of primarily iron and magnesium silicate. We compare Kepler-93b to other dense planets with well-constrained parameters and find that between 1 and 6 M ⊕, all dense planets including the Earth and Venus are well-described by the same fixed ratio of iron to magnesium silicate. There are as of yet no examples of such planets with masses >6 M ⊕. All known planets in this mass regime have lower densities requiring significant fractions of volatiles or H/He gas. We also constrain the mass and period of the outer companion in the Kepler-93 system from the long-term radial velocity trend and archival adaptive optics images. As the sample of dense planets with well-constrained masses and radii continues to grow, we will be able to test whether the fixed compositional model found for the seven dense planets considered in this paper extends to the full population of 1-6 M ⊕ planets.Peer reviewe
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