1,722,799 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Spectrum of confined and interface phonons in complicated cylindrical nanoheterosystem placed into the plane quantum well in water
No full textThe energy spectra of all types of free vibrations existing in combined nanoheterosystem consisting of cylindrical
semiconductor quantum dot, semiconductor quantum ring embedded into the quantum well placed in water are studied in
the framework of dielectric continuum model. It is shown that depending on the boundary conditions for the potentials of
polarization fields there are two types of interface phonon modes: top (bottom) surface optical (TSO) modes and side
surface optical (SSO) modes
FIGURE 23. MNRJ 6582 in Black Corals (Anthozoa: Antipatharia) from the Southwestern Atlantic
No full textFIGURE 23. MNRJ 6582: Telopathes cf. magna MacIsaac & Best, 2013. a—Corallum morphology; b—Pinnulation pattern; c—Organization of spines; d—Spines magnified.Published as part of Lima, Manuela M., Cordeiro, Ralf T. S. & Perez, Carlos D., 2019, Black Corals (Anthozoa: Antipatharia) from the Southwestern Atlantic, pp. 1-67 in Zootaxa 4692 (1) on page 44, DOI: 10.11646/zootaxa.4692.1.1, http://zenodo.org/record/352894
Pengaruh Temperatur Tempering terhadap Kekuatan Lelah Material Baja Thyssen-6582
No full textThe purpose of this study is to examine the influence of the variation of
tempering temperature on the fatigue strength of the steel material of Thyssen 6582.
The tempering was first carried out for the fatigue test specimen by using a furnace at
the temperatures of 100°C, 200°C, 300°C, 400°C, 500°C, and 600°C for 20 minutes.
To obtain the fatigue strength, a test was carried out by using a fatigue test machine
of Cantilever Rotating Bending with the speed of 850 revolution per minute (rpm).
Mechanical tests such as tensile test, Rockwell C hardness test, and microstructure
observation by using an optical microscope and Scanning Electron Microscope
(SEM) were conducted to obtain supporting data in analyzing the fatigue strength of
the material. The result of this study shows that the fatigue strength is very influenced
by tempering temperature. At the tempering temperature of 300°C, the fatigue
strength reaches up to 500 MPa and this is the highest fatigue strength of steel
material of Thyssen 6582 compared to the fatigue strength tested under other
tempering temperatures. Based on the S-N Curve, the tempering at the temperature of
300°C can increase the fatigue strength for 22% of the fatigue strength of material
obtained without process of tempering, and will increase for 32% compared to the
lowest fatigue strength obtained at the tempering temperature 100°C.106 HalamanTesis Magiste
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
Box 12, Neg. No. 6582-2: Baby Standing at a Stool
No full textThis black and white photograph features a portrait of a baby wearing a light dress and standing next to a stool. Mrs. Dr. Haught ordered the photograph. Another negative (6582) is in the collection, but it is not online. Photo number 1986-44-1389.https://scholars.fhsu.edu/stafford_county/2270/thumbnail.jp
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