1,721,098 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
Prediction of Shallow Rainfall-Induced Landslides Using Shear Strength of Unsaturated Soil
No full textRainfall-induced landslides occur more often with climate change, resulting in destruction and loss of lives in many parts of the world. Predicting such landslides is paramount to maintain local infrastructure and the well-being of communities. Several models have been proposed in the past years; however, most of them only work well when being applied to local site conditions for which they were developed. This work describes a new approach to estimate a model parameter related to shear strength conditions of local soils. To validate the theoretical concepts of a model, a series of shear box and undrained triaxial tests were conducted on soil specimens prepared at different values of water content. The refined model was then applied to three landslide sites to estimate the stability of slopes against past rainfall events. The obtained results showed more accurate predictions of landslide occurrence compared to the existing models. This paper presents and discusses field and laboratory data as well as the outcomes of numerical analysis.Full Tex
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
Strategies for smart shopping in cyberspace
No full textThe Internet, started as a military communications system and later opened to the public, has created “cyberspace,”; a seemingly limitless array of resources and services. Users can communicate interactively and order products and services from electronic shopping malls, and organizations can transact business with their partners. Earlier, organizations had limited opportunities to search and select trading partners because of time and cost constraints posed by manual methods of locating and processing information on potential partners. Electronic networks like the Internet have opened up a wide array of choices of products and services. Unit cost of communication has reduced dramatically, and a vast amount of supplier/vendor information will be made available online. Unfortunately, the information explosion can quickly become an “infoglut,”; if unmatched by better methods of searching and processing information. Without smart strategies, total communication cost may actually increase for network‐based transactions because the cost of information processing (e.g., evaluating supplier bids) has not changed significantly for nonstandard products, and it increases linearly with the number of potential trading partners. Although the Internet reduces time and unit communication cost, it may not reduce total transaction cost. Thus, it is critical for commercial Internet service providers to develop guidelines and applications whereby users can appropriate the full benefits of the technology. We suggest that such value‐added services will reduce price competition among the providers. Taking the case of an organizational buyer using the Internet to select a supplier, we demonstrate that the optimal mechanism depends on the nature of product or service being sought, and the buyers in‐house development capability. In the absence of mechanisms, a buyer may spend too much effort and resources to locate a suitable supplier. Depending on the circumstances, organizations may resort to a marriage of “auction”; and “sequential search.”; We further show that other mechanisms; for example, a participation or entry fee, are needed to improve the efficiency of the search strategy
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
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