1,720,987 research outputs found
Higher-Order Accurate Simulations of Blade-Vortex Interaction Using a Discontinuous Galerkin Method on Unstructured Meshes
No full textA Ku-band MOSFET phase shifter MMIC
Get PDFThe authors wish to acknowledge Teltron Inc. for the
unsparing support. This work was partly supported by
KOSEF under the ERC program through the MINT
research center at Dongguk University
An X-band CMOS quadrature balanced VCO
Get PDFThe authors wish to acknowledge Teltron Inc. for
providing an opportunity of the chip fabrication. This
work was partly supported by KOSEF under the ERC
program through the MINT research center at Dongguk
University
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
Evaluation Of The Force X Elongation Curves Dispersion Of Descending Colon Of Rats Using Boltzmann's Sigmoidal Model [avaliação Da Dispersão De Curvas Força X Elongação De Segmentos De Cólon Descendente De Ratos Por Meio Do Modelo Sigmoidal De Boltzmann]
No full textPurpose: to evaluate the dispersion of Force x Elongation curves (FE) that represents the mechanical behavior of rat's colon. Materials and Methods: ten descending colon segments were submitted to the Total Energy of Rupture Test. Each curve generated by this test was fitted to Boltzmann model that correlates the values of force and elongation through the combination of the parameters A1, A2, x0 and dx. Then, for each parameter were calculated the mean, standard deviation and their correlations. Later, the resultant dispersion was determinated in the whole deformation process by an analysis that considers the correlations between the greatnesses based on the propagation of uncertainties law. The resultant dispersion was multiplied by a coverage factor, considering a normal distribution, to determinate an interval in which 95% of force values will be present. Results: the mean, standard deviation and correlation were determined. The resultant dispersion of force values was expanded drawing limits inside which FE curves will be for a confidence interval of 95%. Conclusion: this methodology will be possibly used to evaluate variables that act on the intestinal mechanical behavior.2915156Fagundes, J.J., (1990) Estudo comparativo da cicatrização de anastomoses cólicas realizadas com auxílio do bisturi laser de dióxido de carbono: Trabalho experimental em cães, , Tese dedoutorado - Faculdade de Ciências Médicas da Universidade Estadual de Campinas, Campinas, SPWu, F.C., Lee, H.D., Machado, R.B., Dalmás, S., Coy, C.S.R., Góes, J.R.N., Fagundes, J.J., Apresentação do teste energia total de ruptura para avaliação de material biológico com propriedade viscoelástico não-linear (2004) Acta Cir Bras, 19 (6). , [serial on-line], Nov - DezWu, F.C., (2003) Estudo dos efeitos de diferentes concentrações de oxigênio e da hiperoxigenação hiperbárica sobre anastomose cólica comprometida ou não pela isquemia: Trabalho experimental em ratos, , Tese de doutorado - Faculdade de Ciências Médicas da Universidade Estadual de Campinas, Campinas, SPHendriks, T., Mastboom, W.J.B., Healing of experimental intestinal anastomoses (1990) Diseases of the Colon & Rectum, 33, pp. 891-901Burin, E.L.K., Lee, H.D., Niz, M.A.K., Silva, M.C.C., Coy, C.S.R., Góes, J.R.N., Predição do Comportamento Mecânico de Segmentos de Cólon Descendente de Ratos por meio do Modelo Sigmoidal de Boltzmann (2007) 56° Congresso Brasileiro de Coloproctologia: Anais do 56° Congresso Brasileiro de Coloproctologia, , 2007CuritibaNiz, M.A.K., Burin, E.L.K., Wu, F.C., Lee, H.D., Nogueira, F.M.A., Fagundes, J.J., Góes, J.R.N., Utilização dos modelos matemáticos de Boltzmann, de Chapman e Logístico para o estudo do comportamento mecânico de segmentos de cólon descendente de ratos (2006) CBIS 2006: Anais do X Congresso Brasileiro de Informática em Saúde, , 2006FlorianópolisVoltolini, R.F., Metz, J., Machado, R.B., Lee, H.D., Wu, F.C., Fagundes, J.J., Góes, J.R.N., SABI 2.0: Um sistema para a realização de teste biomecânicos em material viscoelástico não linear (2003) Laptec2003: Proceedings of The 4th Congress of Logic Applied to Technology, , 2003MaríliaBurin, E.L.K., Niz, M.A.K., Lee, H.D., Nogueira, F.M.A., Fagundes, J.J., Góes, J.R.N., Wu, F.C., Aplicação do Modelo Sigmoidal de Boltzmann para o Ajuste das Curvas Força x Elongação de Cólon Descendente de Ratos obtidas por meio do Aplicativo SABI 2.0 (2006) WIM 2006: Anais do VI Workshop de Informática Médica, , 2006Vila Velhada Silva, G.R., Sobre o modelo catalítico reversível aplicado ao estudo da cinética epidemiológica da infecção chagásica. Rev (1969) Saúde públ, 3 (1), pp. 23-9Silva, E.M., Lima, J.E.F.W., Rodrigues, L.N., Azevedo, J.A., Comparação de modelos matemáticos para o traçado de curves granulométricas (2004) Pesq. agropec. bras., 39 (4), pp. 363-70Toledo, R.E.B., Filho, R.V., Bezutte, A.J., Pitelli, R.A., Alves, P.L.C.A., Valle, C.F., Períodos de controle de Brachiaria sp e seus reflexos na produtividade de Eucalyptus grandis (2003) Scientia Forestalis, 63, pp. 221-32Tyson, J.W., Meade, J.H., Dalrymple, G.V., Marvin, H.N., Some Biomedical Applications of a Non-Linear Curve Fit Method (1967) J Nucl Med, 8, pp. 558-69Guimarães, P.S., (2001) Ajuste de curvas experimentais, , 1a ed. Santa Maria: Editora UFSMMotulsky, H., Christopoulos, A., (2003) Fitting Models to Biological Data Using Linear and Nonlinear Regression: A Practical Guide to Curve fitting, , New York: Oxford University Press2004. 13Juan-Les-Pins, FR. New York: SpringerBurin, E.L.K., Lee, H.D., Niz, M.A.K., Silva, M.C.C., Góes, J.R.N., Wu, F.C., Estudo Matemático do Comportamento Mecânico de Segmentos de Cólon Descendente com Anastomose: Trabalho Experimental em Ratos (2007) 56° Congresso Brasileiro de Coloproctologia: Anais do 56° Congresso Brasileiro de Coloproctologia, , 2007Curitib
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
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