1,723,478 research outputs found
Office Building 5402, B
No full textAn office building with the address number 5402 displayed on its exterior wall. The building is surrounded by a parking lot and landscaped with palm trees.https://digitalcommons.usf.edu/gandy_street/3296/thumbnail.jp
Block Card 5402 Yermo Street
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Split-Level Style | 5402 Yermo Street (Toledo, Ohio) | Dwelling | Elizabeth Park Addition (Toledo, Ohio) | Greenwood Park area (Toledo, Ohio
Block Card 5402 Cowan Street
No full textThis image was produced by the Auditor's Office in Lucas County, Ohio for tax assessment purposes. Associated dates are approximate. Descriptive terms related to this photograph include: Ranch houses | 5402 Cowan Street (Toledo, Ohio) | Dwelling | Cowan Place Addition (Toledo, Ohio) | Greenwood Park area (Toledo, Ohio
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe 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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Initial results of a NICER X-ray monitoring of the magnetar, Swift J1555.2-5402
No full textFollowing Swift’s discovery of a new magnetar candidate, Swift J1555.2-5402, on June 3, 2021 (GCN circular 30120, 30124), NICER discovered a 3.86-sec periodicity from this source (GCN 30121). NICER has been monitoring Swift J1555.2-5402 since 13:43 UT on June 3 with a total 4.2 ks exposure as of 11:48 UT June 4. Here we report refined timing analyses after barycentric correction, as well as on the X-ray spectral and bursting properties of this source. The background-subtracted average source count rate is 3.69 cps in the 1-10 keV band. After barycentric correction of the event data at the reported coordinates (RA: 15:55:08.66s, Dec: -54:03:41.1) in GCN 30122, we found a coherent periodicity at 0.2590004(17) Hz with a significance of approximately 30 sigma. The X-ray pulse profile has a single peak. Its period derivative has yet to be measured. The NICER 1-10 keV spectrum can be approximated by an absorbed blackbody model, with best fit spectral parameters N_H=(7.7 +/- 0.3)e+22 cm-2, kT=1.24 +/- 0.03 keV, with an apparent emitting radius at 10 kpc of R=1.8 +/- 0.1 km. The absorbed and unabsorbed X-ray fluxes of the source in the same energy range are (4.4 +/- 0.1)e-11 and (6.94 +/- 0.12)e-11 ergs/s/cm2, respectively. Errors represent 1 sigma uncertainties. These parameters are in the range of known magnetars in outburst. We detected four short burst (< 1 s) candidates with significance > 5 sigma during the observation. The source is still active, and multiwavelength coordinated observations are encouraged. All these results confirm that Swift J1555.2-5402 is a new magnetar in outburst. The NICER team is planning to monitor this target to measure its spin-down rate and flux decay. NICER is a 0.2-12 keV X-ray telescope operating on the International Space Station. The NICER mission and portions of the NICER science team activities are funded by NASA
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