1,720,954 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
DYNAMICS OF PROTEIN SYNTHESIS WITH AUTOREGULATION: A COMPUTATIONAL BIOLOGY APPROACH
Get PDF(Statement of Responsibility) by Christopher Ryzowicz(Thesis) Thesis (B.A.) -- New College of Florida, 2022RESTRICTED TO NCF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE(Bibliography) Includes bibliographical references.This bibliographic record is available under the Creative Commons CC0 public domain dedication. The New College of Florida Libraries, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.Faculty Sponsor: Yildirim, Necmetti
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
DYNAMICS OF PROTEIN SYNTHESIS WITH AUTOREGULATION: A COMPUTATIONAL BIOLOGY APPROACH
No full textTo maintain cellular homeostasis, cells continuously respond to external stimuli by employing a variety of regulatory mechanisms that often involve up-regulation of some proteins. This study focuses on deterministic and stochastic modeling and analysis of dynamics of a hypothetical protein P with negative autoregulations in E.coli. It assumes that the input signal up-regulates the protein P , and P down-regulates its own production using 2 types of autoregulatory mechanisms. The mathematical models are differential equations that describe the dynamics of mRNA and protein P for 3 scenarios: (1)Simplistic model with no regulation, (2)Model with transcriptional autoregulation, and (3)Model with translational autoregulation. The model parameters are estimated from previous literature for E.coli. The steady state and stability of each of the models are analyzed and the dynamics of P to step-like external transient signals is investigated as the signal amplitude and persistency change. Our analysis shows that the negative autoregulation models produce faster response to the signal compared to the model with no regulation, and they also control unnecessary protein synthesis. The return time to the resting states after removal of the signal is faster in the autoregulation models. Moreover, among all 3 models, only the transcriptional autoregulation model is capable of producing oscillatory dynamics. Gene networks are inherently noisy due to random fluctuations in protein molecules. To study regulatory roles of random fluctuations in the dynamics, we employed the Gillespie algorithm to simulate the models stochastically. At steady state, our stochastic simulations predict that the transcriptional autoregulation model is the noisiest followed by the simplistic model, and the translational autoregulation model has the lowest noise level. The noise level depends on the strength of inhibition. The transcriptional autoregulation model filters out the noise in the input signal for a period of time after the signal application, and this time becomes longer as the strength of the feedback gets stronger. The other two models do not filter out input noise to this extent
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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