1,721,023 research outputs found
Seasonaility and Cointegration in the Fishing Industry of Conrwall
Full text linkThis paper examines the evidence for seasonal effects and cointegration between fisheries prices of main species landed into Cornwall. This is the first comprehensive study of fisheries seasonality. The results show significant monthly effects in April and negative monthly effects in February. We also find cointegration between prices, and show that in the long run prices are converged. The results also reveal that Granger causality is unidirectional in fourteen cases and bi-directional in six cases. Examining the form and magnitude of seasonal fluctuations and fish price linkages can be beneficial to fisheries managers in their decisions regarding policy, development and management.Fish prices, Cornwall, Seasonality, Cointegration
Recovering fisheries from crisis or collapse: how to shorten impact time of international research cooperation
No full textICES – the International Council for the Exploration of the Sea – was founded more than a century ago out of concern for overfishing. However, today’s global marine ecosystems are for the most part in a degraded state, many alarmingly so. Why is the science used so little to make decisions compatible with long-term sustainability of fisheries? The paper argues that there is a large gap between the understanding of scientists and that of political and economic decision makers. Scientists investigate the fundamentals of nature and socio-economic systems. These approaches do not coincide with the perceptions, belief systems and experiences of most social actors, except in the long run. Communicating scientific results better and more pervasively to citizens is an avenue that holds great potential to shorten impact times – provided there is willingness to hear the message. Since the media brought the overfishing message to the general public in the early 1990s, the international discourse has gradually shifted. From ‘maximum sustainable yield’ (MSY) of single species, the discourse started to put restoration of entire marine ecosystems by 2015 formally on the agenda through the Johannesburg Plan of Implementation adopted at the 2002 World Summit on Sustainable Development. But results are few and far between as fleet overcapacity driving the process shows little sign of alleviation.It is desirable that international scientific cooperation engages more constructively with citizens, civil society movements, companies and government authorities to speed up adaptive learning. While not replacing political processes, research and research communication that are aware of the different mindsets, cultures and historically grown preferences in societies can help more effectively to bring about the conditions for recovery of lost ecosystem functions and productivity. Trust is a key condition for acceptance of the message. A few examples of the EC’s international S&T cooperation projects are given to explore opportunities and challenges to recover fisheries in crisis.<br/
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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