1,721,521 research outputs found
Plesionika crosnieri Chan & Yu 1991
No full textP. crosnieri Chan & Yu, 1991 Description. Rostrum curved downwards basally, then strongly curved upwards beyond antennular peduncle, and occasionally bending slightly downwards again near apex, far overreaching scaphocerite, 1.8–2.5 times as long as carapace, dorsal border armed with 16–29 teeth over entire length, anterior teeth closely set but posterior ones larger and spaced farther apart, ventral border bearing 30–43 closely packed teeth on upturned section; dorsal surface of abdominal 3rd somite slightly arched but not sharply angular; eye large and subspherical, with distinct ocellus; 3rd maxilliped with distal two segments subequal, bearing rudimentary epipod and extending to about distal margin of scaphocerite; 2nd pereiopods subequal with 19–27 carpal articles (Chan & Yu 1991). Distribution. Indo-west-Pacific and southern Ocean, Crozet Islands, Indonesia, Philippines, Taiwan and Japan; at depths of 80–350 m (Chan & Yu 1991).Published as part of Ahamed, Ferdous, Cardoso, Irene A., Ahmed, Zoarder F., Hossain, Md. Y. & Ohtomi, Jun, 2017, An overview of the genus Plesionika Bate, 1888 (Decapoda, Caridea, Pandalidae) in Asian waters, pp. 575-593 in Zootaxa 4221 (5) on pages 581-582, DOI: 10.11646/zootaxa.4221.5.6, http://zenodo.org/record/25357
Pandalus taiwanica Chan & Yu 2000
No full textP. taiwanica Chan & Yu, 2000 Description. Rostrum 1.3–2.1 times as long as carapace, slightly curving downward at basal part but gently recurved upwards and straight after passing antennular peduncle, dorsal border generally armed with 6–8 teeth, with posterior 4–6 teeth restricted at basal part and forming a low crest while the anterior 1–3 teeth located anterior to level of antennular peduncle, lower border densely serrated with 22–38 small teeth; abdominal 3rd somite feebly arched dorsally and with posterior margin convex; eye subspherical and probably bearing indistinct ocellus; 3rd maxilliped bearing well developed epipod and long strip-like exopod, penultimate segment 1.2–1.5 times as long as distal segment, overreaching scaphocerite by 1/3 to almost entire distal segment; 2nd pereiopods subequal with well developed epipod, bearing 16–25 carpal articles (Chan & Yu 2000). Distribution. Known only from Taiwan at depths of 150–300 m (Chan & Yu 2000).Published as part of Ahamed, Ferdous, Cardoso, Irene A., Ahmed, Zoarder F., Hossain, Md. Y. & Ohtomi, Jun, 2017, An overview of the genus Plesionika Bate, 1888 (Decapoda, Caridea, Pandalidae) in Asian waters, pp. 575-593 in Zootaxa 4221 (5) on page 589, DOI: 10.11646/zootaxa.4221.5.6, http://zenodo.org/record/25357
Zhong fan huan xiang guo: wei Dishini ping fan
No full textChan, Yu Kwan.Thesis (M.Phil.)--Chinese University of Hong Kong, 2013.Includes bibliographical references (leaves [108]-120).Electronic reproduction. Hong Kong : Chinese University of Hong Kong, [2012] System requirements: Adobe Acrobat Reader. Available via World Wide Web.Abstracts also in Chinese
Machine learning-based classification of Covid-19 using chest radiography images / Chan Yu T'ng
No full textThe novel coronavirus disease, also known as COVID- 19, was first reported in Wuhan, China and has since spread around the world. Up to July 2021, it has infected over 197 million people and caused over 4 million associated death worldwide. As the number of reported cases escalates, most countries are running out of resources. The scarcity of testing kits, lengthy testing time, and the growing number of daily cases urged researchers around the world to devise alternative methods such as medical imaging to be used in conjunction with computer aided diagnosis systems, to assist radiologists and physicians in detecting COVID- 19 cases more quickly and reliably. The aim of this project is to implement a machine learning- based binary classifier that can detect COVID- 19 positive cases from COVID- 19 negative cases using chest CT images. Transfer learning technique in conjunction with VGG16 and ResNet50 architecture has been adopted in developing the binary classifier. To achieve an optimal performance of the baseline models, many performance improvement strategies such as data augmentation, re- training of weights, fine- tuning of hyperparameters, and 5- fold cross validation have been implemented and incorporated. Thorough experimentation demonstrates that the proposed classification models are computationally less expensive while yielding astoundingly good results where Model 1 based on VGG19 architecture achieved an accuracy of 95.19% and Model 2 based on ResNet50 architecture achieved an accuracy of 98.29%
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
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
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
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