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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
State of mullets (Mugilidae) population in the Abkhazian waters under conditions of climatic and anthropogenic changes of their habitat
No full textLife, reproduction, feeding and wintering cycles of the indigenous mullet in the coastal waters off the Republic of Abkhazia (Black Sea) are studied. Environmental conditions, indicative for this region, are considered, as well as presence of deep-water hiding places in bays, and estuarine and pre-estuarine shallow-water areas of numerous rivers. It was noted that, despite favorable natural conditions, mullet population is in a depressed state, due to several natural causes and anthropogenic pressure. Ways of conservation, reproduction and rational exploitation of mullets as commercial fish resource are discussed.Изучен жизненный цикл воспроизводства, нагула и зимовки аборигенной кефали в прибрежной зоне Республики Абхазия. Рассмотрены характерные для региона природные и экологические условия, наличие глубоководных бухт-укрытий, устьевая и приустьевая мелководная зона многочисленных рек. Отмечено, что, несмотря на благоприятные природные условия, популяция кефали находится в депрессивном состоянии по ряду естественных причин и из-за антропогенного пресса. Обсуждаются пути охраны, воспроизводства и рационального использования кефалевых как ценного промыслового ресурса.Publishe
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
Динамика состояния азово-черноморской популяции европейского анчоуса (Engraulis encrasicolus Linnaeus, 1758) у берегов Абхазии в период зимних миграций 2011–2021 гг.
No full textBased on the available data for a ten-year period (2011–2021), the ecological structure and morphobiological composition of the European anchovy (Engraulis encrasicolus L., 1758) population wintering in the coastal waters of Abkhazia have been analyzed. This work is of considerable theoretical and practical value for the fishing industry, since it allows for interpretation of the dynamics of anchovy populations wintering off the coasts of Abkhazia. This work is aimed at the intraspecific analysis of the population characteristics of the European anchovy inhabiting the Azov and Black Seas. To obtain the necessary information, standard methods for collecting and processing ichthyological material were used. Following the data collected in the course of the monitoring during the investigated period, the dynamics of the length and age composition of catches has been considered, and the intra-annual and inter-annual patterns in the anchovy fishing (Black Sea and Azov Sea stocks) are presented. The cyclical nature of the change in its stocks has been revealed, and the changes in population characteristics as evidenced by the composition of catches and the spatial distribution of wintering anchovy aggregations in the Abkhazian waters of the Black Sea have been recorded. The absolute values of catches and their long-term fluctuations are given. This research provided the data characterizing the status of the Azov and Black Sea population of the European anchovy during its wintering season as dynamically stable with a tendency for stock reduction and the decrease in the number of fish individuals exceeding the minimum landing size.На основе имеющихся данных за десятилетний период (2011–2021 гг.) проанализирована экологическая и морфобиологическая структура популяции европейского анчоуса (Engraulis encrasicolus L., 1758), зимующего в прибрежных водах Абхазии. Данная работа имеет важное теоретическое и прикладное значение для рыбохозяйственной отрасли, поскольку позволяет объяснить динамику популяций анчоуса, зимующих у берегов Абхазии. Целью работы является внутривидовой анализ популяционных параметров азово-черноморской хамсы. Для получения необходимой информации были использованы стандартные методы сбора и обработки ихтиологического материала. На основе полученных в ходе мониторинга данных в изучаемый период рассмотрена динамика размерно-возрастной структуры уловов и представлены внутригодовые и межгодовые закономерности динамики промысла анчоуса (черноморского и азовского). Выявлена цикличность изменения запаса и отмечены изменения популяционных характеристик в составе уловов, а также пространственного распределения зимующих скоплений анчоуса в абхазской акватории Черного моря. Приведены абсолютные значения выловов и их межгодовые колебания. В результате исследований представлены данные, характеризующие состояние азово-черноморской популяции европейского анчоуса в период зимовки как динамически стабильное с тенденцией к сокращению запаса и числа рыб с промысловой длиной тела.PublishedReferee
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
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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