1,721,231 research outputs found
Dataset on the selection between healthy or Fusarium wilt diseased banana plant material by Cosmopolites sordidus, experiments in Costa Rica
No full textThis dataset is corresponding to an experiement that aimed at understanding whether Cosmopolites sordidus is preferentially attracted by Fusarium oxysporum f‧sp. cubense race 1 contaminated banana plants material than Foc-free ones. The relative attraction of healthy and Foc contaminated Gros Michel banana bulbs and pseudostems, as well as pure culture of Foc was measured using four-armed olfactometers. Males and females were studied separately. After storage in a dark room, weevils where were introduced in the central chamber of olfactometers. At 15 minutes, the orientation of each of the weevils was determined according to the food source placed in each of the chambers of the olfactometer. Overall, 560 olfactometer experiments were carried out
Video monitoring data of earwigs Euborellia caraibea on residues and bare soil microcosms
No full textThe two sets of data are related to the paper “Assessing the effect of complex ground types on ground-dwelling arthropod movements with video monitoring: dealing with concealed movements under a layer of plant residues”. In this experiment 35 nocturnal earwigs Euborellia caraibea were tracked for a whole night in mesocosms mimicking two banana field ground types, bare soil and banana plant residues. The main data “Traj_net_exp‧csv” gives the trajectories information of earwigs extracted from videos with Image J software and cleaned with R (section 2.4). The trajectories are defined as a time series of locations of one individual (= points), and each point is characterised by its coordinates and time. Points were grouped into a given trajectory if separated by less than a time gap tg and a distance gap dg (here dg = 50 pixels, i‧e., ≃ 4.3 cm and tg = 10 s). Each line represents a point on a trajectory for an individual on a ground type (bare soil or residues), characterized by its coordinates (x,y), a time and a trajectory identification. The metadata of this data set is given in “Traj_net_Meta_exp‧csv”. The data “Info_Ind_exp‧csv” gives information on each individual, such as his sex or the time individual spent in lab before experiment. The metadata of this data set is given in “Info_Ind_meta‧csv”
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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