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SEASONAL VARIATION OF PHYTOPLANKTON COMMUNITY IN THALE SAP SONGKHLA, A LAGOONAL LAKE IN SOUTHERN THAILAND
Get PDFRedescription of Ctenapseudes sapensis (Chilton, 1926) from the Upper Songkhla Lagoon, Thailand (Crustacea: Tanaidacea)
No full textThe parapseudid tanaidacean Ctenapseudes sapensis (Chilton, 1926) is minutely redescribed and illustrated. The species is very similar to C. chilkensis, described by the same author based on samples from the brackish Chilka Lake in India (Chilton, 1924). C. sapensis was the only apseudomorph tanaidacean found in Upper Songkhla Lagoon, southern Thailand.This species is dominant in this lagoon, and, at the same time, is a major food source for some catfishes (Osteogeneiosus militaris, Arius truncatus and Arius maculatus)
Balanus thailandicus sp. nov., a new mangrove barnacle of the Balanus amphitrite complex (Cirripedia, Balanomorpha) from Satun, Southwest Thailand.
No full textGoing 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
Diversity of soil algae in undisturbed and disturbed forests at Ton Ngachang Wildlife Sanctuary and reserved forests
No full textSpecies diversity of soil algae and environmental relationship were studied from undisturbed and disturbed forests at Ton Ngachang Wildlife Sanctuary and nearby reserved forests. Soil samples were collected in both dry and rainy seasons, in May and October 1999 respectively. Soil algal density was estimated by the dilution-culture method, using NSIII medium. The cultures were incubated at 25ºC and room temperature. Twenty-two genera of soil algae in Cyanophyta, Chlorophyta and Bacillariophyta divisions were identified: 17 genera from undisturbed forests, 16 genera from disturbed forests and 17 genera from reserved forests. Cyanophyta showed live highest. Comparison of soil algae from 3 sites and 2 seasons were analyzed using multivariate analysis of variance (MANOVA). The results indicated no significant difference between sites and seasons. A detrend correspondence analysis (DCA) ordination of sites and seasons revealed no distinct cluster. Environmental variables were related to the species composition of soil algae by mean of canonical correspondence analysis (CCA). The significant factors that showed a relationship with the soil algae were pH, organic matter, available P, total N, exchangeable K, Ca and Mg, moisture content, light intensity and soil temperature. However, percent variance explained by CCA ordination was very low
Reexamination of a Little-known Mangrove Barnacle, Balanus patelliformis Bruguiere(Cirripedia, Thoracica) from the Indo-West Pacific.
No full textVariations 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
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