177,384 research outputs found
Copy of a letter from John T. Cunningham to Ed. R. Tandy, 1930-01-04
No full textCopy of a letter from John T. Cunningham in Clarksville, Tennessee to Mr. Ed R. Tandy in Clarksville, Tennessee. Cunningham is requesting that Tandy and Mr. Fairleigh write to Senator Sackett requesting he vote have Charles Hanratty's appointment confirmed
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
High-resolution extreme ultraviolet spectroscopy of G191-B2B: structure of the stellar photosphere and the surrounding interstellar medium
No full textWe have continued our detailed analysis of the high-resolution (R= 4000) spectroscopic observation of the DA white dwarf G191-B2B, obtained by the Joint Astrophysical Plasmadynamic Experiment (J-PEX) normal incidence sounding rocket-borne telescope, comparing the observed data with theoretical predictions for both homogeneous and stratified atmosphere structures. We find that the former models give the best agreement over the narrow waveband covered by J-PEX, in conflict with what is expected from previous studies of the lower resolution but broader wavelength coverage Extreme Ultraviolet Explorer spectra. We discuss the possible limitations of the atomic data and our understanding of the stellar atmospheres that might give rise to this inconsistency. In our earlier study, we obtained an unusually high ionization fraction for the ionized He ii present along the line of sight to the star. In the present paper, we obtain a better fit when we assume, as suggested by Space Telescope Imaging Spectrograph results, that this He ii resides in two separate components. When one of these is assigned to the local interstellar cloud, the implied He ionization fraction is consistent with measurements along other lines of sight. However, the resolving power and signal-to-noise available from the instrument configuration used in this first successful J-PEX flight are not sufficient to clearly identify and prove the existence of the two components
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Page 44, Early days in Valley recalled by John Peavey newspaper article, Ojo de Agua buildings, Burned bridge at Tandy station
No full textBlack and white photographs. Newspaper clipping. Early days in Valley recalled by John Peavey in magazine article newspaper clipping; Side view of the buildings that were shot at during the Ojo de Agua Raid / Incursión en Ojo de Agua; Burned bridge at Tandy. Bridge at Tandy\u27s station burned by Mexican bandits .https://scholarworks.utrgv.edu/johnrpeavey/1049/thumbnail.jp
Stratigraphy of the Gezer Tandy excavation, with reference to HUC stratigraphy.
No full textStratigraphy of the Gezer Tandy excavation, with reference to HUC stratigraphy.</p
Plan of Tandy excavation stratum 12B elite residence with radiocarbon dated contexts marked.
No full textPlan of Tandy excavation stratum 12B elite residence with radiocarbon dated contexts marked.</p
Plan of Tandy stratum 7 domestic units with radiocarbon dated contexts marked.
No full textPlan of Tandy stratum 7 domestic units with radiocarbon dated contexts marked.</p
Plan of Tandy excavation strata 10A and 9 with radiocarbon dated contexts marked.
No full textPlan of Tandy excavation strata 10A and 9 with radiocarbon dated contexts marked.</p
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