1,720,969 research outputs found
Odonata (Class Insecta) of Sungkai Wildlife Reserve, Perak, Malaysia
No full textProtected areas need to be continuously monitored for their flora and fauna for the ecosystem
management and conservation purposes. Odonata is a good bio-indicator for habitat monitoringthey
are ecologically conspicuous and sensitive to environmental changes. A two-day survey was done at
Sungkai Wildlife Reserve (SWR), Perak in June 2014 to record the odonate diversity of the areas.
Twenty-one species from seven families were collected, namely Libellulidae with seven species,
Protoneuridae and Chlorocyphidae (four species each), Calopterygidae and Euphaeidae (two species
each), and Platycnemididae and Coenagrionidae with a single species respectively. Despite the short
collection period, this area showed a rich odonate fauna but further survey is needed to obtain a
complete picture. The results formed the first checklist of odonate fauna here and may serve as baseline
information for future research towards habitat monitoring, conservation and management of SWR
Fish diversity in small streams of Sungkai Wildlife Reserve, Perak, Malaysia
No full textThe diversity of fishes recorded from several small streams within Sungkai Wildlife Reserve (SWR),
Perak is presented here. A total of 26 species from 12 families were recorded during the 3-day survey.
Fishes from family Cyprinidae were the most common with 11 species, followed by Channidae with
four and Osphronemidae two species. We added seven species to the checklist of fishes of SWR,
bring the total number of fishes known to this area to at least 41 species. Here, we update the name of
previously reported fish species found at SWR by comparing the checklist to the recently published
materials. However, the taxonomic status of four species mentioned in the previous publication
was doubtful and we cannot assign them to any valid taxa known to us. Nonetheless, the fish fauna
inhabiting the small streams here is diverse and requires further research to obtain more data to validate
the checklist that is useful for conservation and planning future management program
Freshwater fishes of Sungai Chantek, Pasir Akar, Besut, Terengganu, Peninsular Malaysia
No full textTwenty two species from 12 families of primary freshwater fishes were recorded from Sg. Chantek, Pasik Akar,
Besut, Terengganu. Cyprinidae was the most dominant family (27%) with six species followed by Balitoridae
with four species (18%). Fish composition was dominated by Poropuntius smedleyi with 140 individuals collected.
More fish were collected in the downstream section (LS) (85 individuals) compare to middle (MS) and upper
stream (US) sections. Fish species richness for each section range from 12 (US) to 18 (LS) and the differences
was between US-LS and MS-LS sections but not with US-MS. LS has more fish species compared to US and MS.
It is hypothesized that the presence of different substrate types and microhabitats at LS promotes species
richness. Despite of its small size stream, the ichthyofauna found at Sungai Chantek are important and should be
kept intact. This study has successfully documented fish diversity at Sg. Chantek. It is suggested that continuous
monitoring to be undertaken to ensure species diversity is preserved
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
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