1,721,093 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
Weak Exciton-Photon Coupling of PbS Nanocrystals in Air-Slot Mode-Gap Si Photonic Crystal Nanocavities in the Near-Infrared
No full textWe demonstrate micro-photoluminescence measurements of PbS nanocrystals coupled to air-slot mode-gap photonic crystal nanocavities with Q~15,000 and V[subscript eff] ~0.02 (λ/n[subscript air])³. The ultrahigh Q/V ratios are critical for applications in cavity QED, nonlinear optics and sensing
The Wheat Seed Sector in the Sudan
No full textThe African Development Bank is currently funding the project “Support to Agricultural Research for Development – Strategic Crops” (SARD-SC), within which twelve countries participate in the wheat sub-project coordinated by ICARDA. These countries are grouped based on an agroclimate, and Sudan provides the ‘hub’ for work in the East African Lowlands. The Agricultural Research Corporation of Sudan (ARC) has a long history and rich experience in wheat research, particularly for breeding heat-tolerant varieties it is therefore well-placed to host this program. Despite this positive research background, the national wheat production in Sudan has decreased in recent years, and this is a serious drain on the economy because of the rising demand for bread and the high cost of imported grain. The government is committed to restoring wheat production and has announced ambitious annual targets. This can be achieved by both productivity gains and an increase in the planted area.
The lack of good quality seed is widely regarded as a major factor contributing to the low performance of wheat crops in recent years, and this reflects a wider concern about the overall status of the seed sector. The Government of Sudan requested ICARDA to review the wheat seed sector, identify key constraints, and make recommendations for its revitalization. The inception workshop of the SARD-SC held in March 2013 had already prioritized seed as a key component of technology transfer. Therefore, ICARDA, as the coordinator of the project undertakes this mission with the main focus on wheat but also considers the wider seed issues in Sudan. This dual purpose was emphasised in briefings with senior Ministry officials at the start of the mission.
Although the institutional and regulatory aspects of this study are specific to Sudan, the analysis presented in this report may be relevant to other countries within the sub-project because the supply of wheat seed does present some generic challenges that arise from its biological and agronomic characteristics
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
Setting the pathway for Africa out of poverty
No full textSolomon Assefa, SARD Sr. Wheat Coordinator, ICARDA - speaks on the importance of #AASW6. The Forum for Agricultural Research in Africa (FARA) in collaboration with the Government of Ghana will convene the 6th Africa Agriculture Science Week from July 15-19 in Accra, a continental gathering of all stakeholders involved in African agriculture. Learn more: http://www.cgiar.org/calendar-events/ http://www.fara-africa.org/scienceweek
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