1,721,126 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Upper tropospheric circulation and thermal anomalies over central Asia associated with major droughts and floods in India
Full text linkThe composite upper tropospheric (200 hPa) circulation and thermal anomalies during April to June were examined in respect of seven drought years (1965, 1966, 1968, 1972, 1974, 1979 and 1982), three flood years (1961, 1970 and 1975) and twelve normal years (1962, 1963, 1964, 1967, 1969, 1971, 1973, 1976, 1977, 1978, 1980 and 1981) using the upper air data of 21 stations of 22 years (1961-1982), There were significant differences between the anomalies during drought and flood years. The anomaly patterns during the normal years were similar to those of flood years but the anomalies were weaker. It has found that a cyclonic (anticyclonic) anomalous circulation with cold (warm) temperature developed over central Asia near Caspian sea during April of drought (flood) years. These anomalies persisted and strengthened during the later months. The cold cyclonic anomalous circulation adversely affects monsoon performance due to excess Eurasian snow cover and the large-scale intrusion of dry westerlies into Indian region
Variations on the Author
Full text link“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
Full text linkWe 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
Full text linkWe 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
Clouds and cloud radiative forcing over tropical Indian Ocean and their relationship with sea surface temperature
Full text linkEarth radiation budget experiment (ERBE) radiative fluxes and International Satellite Cloud Climatology Project (ISCCP) C-2 cloud parameters for the four representative months of January, April, July and October and for the period 1985-1988 are used to study the cloud-radiation interaction over the tropical Indian Ocean (20° S-20° N, 50° E-100° E), and its relationship with sea surface temperature (SST). Some important results are compared with those over tropical west Pacific Ocean (20° S-20° N, 130° E-180° E). Over Indian Ocean, both the shortwave cloud radiative forcing (SWCRF) and longwave cloud radiative forcing (LWCRF) are found to be correlated most with high cloud amounts (HCA) among the various cloud types. HCA and cloud radiative forcings in turn show a positive relationship with SST above 26.4°C. During July and October, after reaching a maximum value at 29°C, the relationship is found to be negative. In the rising portion of the HCA-SST relationship, at certain SST threshold value (27.4°C for July) the probability of occurrence of high convective clouds suddenly rises above 50. During January and July above this SST threshold value the SWCRF is found to be significantly larger than LWCRF, thus causing large negative net cloud radiative forcing. This is found to be associated with the sudden rise in the spatial extent (cloud amount) and the optical depth of the high clouds above the SST threshold values
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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