1,720,958 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
A Case Control Study to Elucidate the Effects of Maternal Anthropometric Characteristics and Other Factors on Birth Weight of Newborn
No full textBackground: Birth weight reflects mother’s health and nutritional status during pregnancy. This study was conducted to measure the effect of various maternal factors on birth weight; and also to study the strength of association between risk factors and low birth weight.
Methods: A case-control study was conducted among neonates delivered in tertiary care Hospital from June 2013 to July 2014 among mothers who delivered in the hospital and their singleton newborns. Birth weight was measured for all newborns and these mothers undergone anthropometric measurements and were asked relevant questions.
Results: The proportion of low birth weight was 27.73%. Maternal age of more than 30 years (odds ratio 1.98; χ2=3.86, P=0.04), gestational age at the time of birth (OR 4.37; χ2=44.21, P=0.000) occupation of mother (OR 1.69, χ2=4.54, P=0.03) maternal height <145 cm (OR 2.74, χ2=17.97, P= 0.000), maternal weight <45 kg (OR 1.90, X2 =8.19, P= 0.004) and complications during pregnancy (OR 1.78 χ2=6.55, P =0.01) have a significant association with LBW infant.
Conclusion: LBW rate was higher when Maternal age more than 30, early gestational age at the time of birth, occupation of mother, maternal height <145 cm, maternal weight < 45 kg and complications during pregnancy
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
Intrauterine Devices and Reproductive Tract Infections: A Cross-Sectional Study in Urban Slum
No full textIntroduction: The concern that intrauterine devices (IUDs) might cause or facilitate reproductive tract infection has limited its use.
Objectives: The study aims to explore the relationship between re- productive tract infections & IUD use.
Materials and Methods: A hospital based cross sectional study con- ducted in STI/RTI Clinic located in urban slums of Mumbai, involv- ing total 169 married females of reproductive age group who pre- sented with symptoms of RTI and using atleast one type of contra- ceptive method, who attended OPD from January to March 2012. Tool for interview was the questionnaire about sociodemographic profile, contraceptive practices, and symptoms of the participants. Disease specific laboratory methods were used to confirm diagnosis of RTI.
Results: 47(27.81%) females were using IUD as contraceptive method in this study. Proportion of the symptoms was more among IUD us- ers than non IUD users. 33(70.2%) had suffered from STI / RTI who were using IUDs as compared to 63 (51.6%) non-IUD users showing statistically significant association.
Conclusion: There is a statistically significant association between use of IUD and RTI
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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