1,720,957 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
Young's Modulus Parallel to the Grain in Wood as A Function of Strain Rate, Stress Level and Mode of Loading
Get PDFModuli of elasticity were determined parallel to the grain in wood specimens using dynamic flexural tests, static tensile tests, and static compression tests. in the static tests the specimens were repetitively loaded at different strain rates below their proportional limits. Stress rate and strain rate data were taken at discrete stress levels. Species used were red oak, Douglas-fir, and western hemlock.Stress rate plotted as a linear function of strain rate with zero intercept. The slopes of the plots were Young's moduli. For the majority of specimens, there were no significant differences between Young's moduli in tension and Young's moduli in compression. There were also no indications that Young's moduli were either a function of stress level or strain rate. Dynamic flexural moduli uncorrected for shear deflection averaged 3% less than static tensile moduli
A Method for Predicting Non-Shear Compliances in the RT Plane of Wood
Get PDFEquations were obtained relating the non-shear compliances in the radial-tangential, RT, plane to each other for a variety of hardwood and softwood species that were at 10 to 12% moisture content. From loadings made on short columns in the tangential, T, direction SRT = -0.255STT + 0.659 x 10-6; for loadings made on columns in the radial, R, direction STR = -0.887SRR - 1.260 x 10-6. In the compliance term Sij, "i" signifies the direction of the observed strain and "j" the direction of the applied stress; i.e., SRT relates strain in the R direction to stress in the T direction. Since SRT = STR for orthotropic materials, it follows that SRR = 0.291STT - 2.188 x 10-6. SRR and STT are entered as negative quantities in the above equations to indicate compression. Units for strain are inches per inch and for stress are pounds per square inch. These equations should be useful for finite element studies in mechanics and for studies on strains developed during wood drying
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
Measurement Of The Smaller Poisson's Ratios And Related Compliances For Wood
Get PDFFew direct measurements have been made of strains in the longitudinal L direction of wood when uniaxial loading takes place in the radial, R, or tangential, T, directions because of the difficulty of making the small measurements involved. Improved accuracy in measurements of this type were achieved by using low modulus strain gages having little or no sensitivity perpendicular to the gage axis, by having low noise signals in connecting wires, by making strain measurements with a resolution of 107 inches per inch, and by having a proper loading device. Compliances from loadings made on different specimens representing a number of species were found to be correlated in that the strain in the L direction per unit of stress in the R or T direction was proportional to the strain per unit stress in the load direction (R or T). The best estimates that could be found for Poisson's ratios vTL and VRL were 0.030 and 0.043, respectively. For some reason basswood data from a single board did not seem to fit with the rest of the data
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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