1,720,987 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
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
pH-responsive Pickering emulsion using magnetic nanoparticles
No full textMagnetic nanoparticle engineering, characterization and their use as an emulsion stabilizer is the focal point of this research and dissertation. Their magnetic properties enable remote manipulation of particle’s motion. In this research pH-responsive Fe3O4 nanoparticles were synthesized using a chemical co-precipitation method and consequently used to stabilize Pickering emulsions. Oleic acid was used to modify the nanoparticle surface to tailor their wettability as well as pH responsiveness as a consequence of deprotonation/protonation of carboxylic group. It was found that the oleic acid arranges in bilayer structure at pH higher than 8 but remains as a monolayer at pH lower than 7. This change in structure alters the wettability of particle with a change in pH. The nanoparticles were characterized in terms of particle morphology, size distribution by transmission electron microscopy (TEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectrometer, thermo-gravimetric analysis (TGA) and zeta potential. Bilayer stabilized magnetic nanoparticles were suitable for preparing Pickering emulsions. The stability of emulsion was dependent on pH with stable emulsions forming at pH higher than 10. The rheological studies were done to understand the flow behavior of emulsions. Emulsions with higher weight percentage of nanoparticles were found to be the least stable due to decrease in pH of aqueous phase. The decrease in pH and consequent lower stability of emulsions was due to oxidation of bare Fe3O4 nanoparticle in alkaline medium. These findings are applicable in applications such as enhanced oil recovery, liquid phase heterogeneous catalysis, emulsion polymerization, and biomedicine where control destabilization of Pickering emulsion is required. Emulsion droplets can be directed using an external magnetic field and emulsions can also be destabilize by changing the pH of the aqueous phase. Since the particle are magnetic, they can be recovered in presence of external magnetic field after the separation of phases of emulsion
बजट में कोरोना से निपटने की तैयारियों के साथ इससे हुए नुकसान से लोगों को उबारने का करें उपाय
Get PDFमृणालिनी झा। वित्त मंत्री निर्मला सीतारामण द्वारा केंद्रीय बजट पेश करने में अब कुछ सप्ताह बचे हैं। इस वक्त अर्थव्यवस्था की दशा कुछ मिलीजुली-सी है। जहां सकल घरेलू उत्पाद (जीडीपी) में एक उछाल आया है, वहीं निजी उपभोग का हिस्सा पूर्व कोविड-19 महामारी की तुलना में अभी भी तीन प्रतिशत कम है। इसी तरह उपभोक्ता विश्वास सूचकांक में बेहतरी के बावजूद उपभोक्ताओं का भरोसा डांवाडोल है। वर्ष 2020 में आई इस महामारी की पहली लहर की चपेट में ध्वस्त हो गए रोजगार और नतीजतन फैल गई गरीबी और कर्ज से हम पूरी तरह निकल भी नहीं पाए थे कि दूसरी लहर की विभीषिका ने 2021 में अमूमन सब कुछ मटियामेट कर दिया। पहली लहर में आर्थिक रूप से कमजोर वर्ग अधिक प्रभावित हुआ था। ऐसे में यह जरूरी हो जाता है कि आम बजट में न केवल महामारी की तीसरी लहर से निपटने की सारी तैयारियों, बल्कि इसकी पहली दो लहरों की आर्थिक मार का जायजा लेकर उसके निदान के सभी संभव उपायों को प्राथमिकता दी जाए
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
- …
