1,720,965 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
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
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
Diversity of Macroscopic Fungal Types in South Leitimur District, Ambon City
Full text linkMacroscopic fungi are eukaryotic, heterotrophic, cosmopolitan organisms, have fruit bodies large enough to be seen without using tools, and vary in morphology, size, and color. This research was carried out in two villages in Leitimur Selatan District, Ambon City, namely Hutumuri and Ema, from May 2022 to July 2022. Macroscopic fungal samples were obtained during a survey using the exploration method. Sampling locations were based on predetermined transect lines and random fungal samples were taken at each location. Identification in the laboratory was carried out to determine the type of mushroom, fruit body shape, color, and size of the mushroom. The data obtained was then analyzed qualitatively and quantitatively. The research results obtained 32 species of fungi consisting of two divisions, namely Ascomycota and Basidiomycota, as well as 18 families. The frequency of the presence of fungi in Leitimur Selatan District was the highest at 19.6% and the lowest at 0.1%, and the fungal populations found lived either alone or in colonies. Based on Hierarchical Cluster Analysis (HCA), macroscopic fungi at the research location were divided into two large groups with a dissimilarity coefficient of 31%. The main differentiating character based on Principle Component Analysis (PCA-Biplot) found that the characteristic character in the descriptor of seven fungal species was the lamella character, and the differentiating character in the descriptor of two fungal species was the pore characteristics and pore size
Keanekaragaman Jamur Makroskopis Di Kecamatan Amahai Kabupaten Maluku Tengah
Full text linkThe research objectives are: 1) Identifying the types of macroscopic fungi found in Amahai District; 2) Calculate the frequency of presence and population of macroscopic fungi found in Amahai District, and 3) Describe the morphological characteristics of macroscopic fungi found in the Amahai sub-district. This research was carried out in Amahai District in the villages of Yafila and Nuweletetu. This research was also carried out at the Plant Disease Laboratory, Faculty of Agriculture, Pattimura University, from March to May 2024. The survey was carried out using the roaming method to obtain macroscopic fungi in Amahai District. The transect line created as a sampling location measures 100 ´ 20 m. Laboratory identification is carried out to determine the morphological characteristics of the fungus. Mushroom characteristics include fruit body shape, color, size, and habitat. The results (PCA) of 13 morphological characters from 38 fungi samples showed that between the two groups of macroscopic fungi, there was a similarity in morphological characters of 62%. Principle component analysis (PCA-Biplot) was performed on nine morphological characters on 38 macroscopic fungi samples. PCA was carried out to obtain characteristic characters in the fungi groups found. Based on the results of the analysis (PCA), the fruit's body shape and pores can be recommended as characterizing characteristics
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