1,720,956 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
MATLAB algorithm and VHDL modules for morphologic detection, recognition and classification of cells in clinical analysis for implementation on FPGAs: its design and development
Get PDFLaboratory tests and clinical analysis is a must to confirm or reject some medical diagnosis. Common analytical fields of knowledge are: Hematology, Clinical biochemistry, Urology, Microbiology among others. This work is for the clinical field of Hematology where detection of immature leukocytes on peripheral blood sample is part of a clinical test of relevance for detection of certain types of cancer.
Hematologists distinguish metamyelocytes by their characteristic kidney shape and band Neutrophils by C or S shape of their nucleus.
This work focuses on the development of an algorithm in MATLAB, for detection, recognition and classification of abnormal White Blood Cells (WBC) in peripheral blood samples and implementation of some VHDL modules in a FPGA; with the purpose to ease future applications in devices for clinical analysis.
Development and implementation could contribute to improve some devices, like blood analyzers based on microscopy augmented images.Las pruebas de laboratorio y análisis clínicos son un requisito indispensable para confirmar o descartar algunos diagnósticos médicos. Los campos analíticos más comunes en esta área son: Hematología, Química Clínica, Urología, Microbiología, entre otros. Este trabajo está ubicado en el campo clínico de Hematología, donde la detección de leucocitos inmaduros en muestras de sangre periférica es parte de una prueba clínica de relevancia para la detección de ciertos tipos de cáncer.
Hematólogos distinguen metamielocitos debido a la característica forma arriñonada y los neutrófilos de banda debido a la forma C o S de sus núcleos.
Este trabajo se enfoca en desarrollar un algoritmo en MATLAB, para la detección, reconocimiento y clasificación de glóbulos blancos anormales en muestras de sangre periférica y algunos módulos en VHDL para implementarlos en un FPGA, con la finalidad de facilitar futuras aplicaciones en dispositivos para análisis clínicos.
El desarrollo e implementación podría contribuir para mejorar algunos dispositivos, como lo son los analizadores de sangre que trabajan sobre imágenes de microscopio aumentadas
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
Real heart valve operation in cardiovascular model with simulations for mitral regurgitation and aortic stenosis
Get PDFHeart valves control the heart function; which is the responsible for blood distribution through the lungs and the body.
Modeling valves' function may provide a tool for studying the heart's performance, as well as, it helps to represent some of the most common heart’s abnormalities such as mitral valve regurgitation and aortic stenosis. Cardiovascular system models using electrical systems do not model chambers and the valves are ideal.
This study proposes a model for heart valves based on the seven cardiac cycle phases, and representing times and shapes for the three real valve operation stages: opening, slow closing and quick closing. It is possible to simulate different slopes in the systolic and diastolic stages, in addition to their time duration depending on the heart rate. Additionally, one can use parameters to represent different hearts sizes
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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