1,720,954 research outputs found
Different formula analysis for intraocular lens calculation and the refractive result on cataract surgery
No full textObjective: This study has as objective to analyze the association of different formulas on intraocular lenses calculation with the refractive result on cataract surgery Methodology: Retrospective cohort study including 200 eyes from 200 patients submitted to phacoemulsification with the insertion of the spherical intraocular lens (IOL). The data was arranged on Windows Excel software and exported to the Statistical Package for the Social Sciences (SPSS) program. The Student T test was used with the same level of significance (p<0.05) in all analyses. Results: The 165 patients classified as surgical success were the ones with final refraction of 0.00D (±0.5D), of whom 140 (83.33%) used the formula SRKT. It was yet considered biometric success those patients who obtained ±0.5D refraction on the spherical in relation to the expected refraction by its biometry, this way 49.5% reached biometric success.From these: 46.4% achieved biometric success with Hoffer Q, 48.8% with SRKT, and 50% with Haigis. Conclusion:The SRKT and Hoffer Q formulas have showed good precision for surgical success and regular precision to evaluate biometric success on eyes with average axial length. There was a better result on the biometric success of myopic patients on the preoperative than the hyper myopic ones.Objetivo: O objetivo deste estudo foi analisar a associação das diferentes fórmulas para o cálculo da lente intraocular com o resultado refrativo na cirurgia de catarata. Métodos: Coorte históricaincluindo 200 olhos de 200 pacientes submetidos à facoemulsificação com colocação da lente intraocular (LIO) esférica. Os dados foram tabulados no software Windows Excel e exportados para o programa Statistical Package for the Social Sciences (SPSS). Foi utilizado o teste T de Student e o mesmo nível de significância (p<0,05) em todas as análises. Resultados: Foram classificados como sucesso cirúrgico os 165 pacientes com refração final de 0,00D (±0,5D), sendo que 140 (83,33%) deles usaram a fórmula SRKT. Foi, ainda, considerado sucesso biométrico aqueles pacientes que obtiveram refração ±0,5D no esférico em relação à refração esperada pela sua biometria, deste modo 49,5% atingiram o sucesso biométrico. Destes: 46.4% tiveram sucesso biométrico com Hoffer Q, 48,8% com SRKT, e 50% com Haigis. Conclusão: A fórmula SRKT e Hoffer Q demonstraram uma boa precisão para o sucesso cirúrgico e uma precisão mediana para calcular o sucesso biométrico em olhos de comprimento axial médio. Houve um melhor resultado para o sucesso biométrico nos pacientes míopes no pré-operatório do que nos hipermetropes
Alterações retinianas na doença hipertensiva específica da gestação.
Get PDFTrabalho de Conclusão de Curso - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Departamento de Tocoginecologia, Curso de Medicina, Florianópolis, 200
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
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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