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Preliminary investigations on gonadal maturation in captive white bream Diplodus sargus (L). Oebalia
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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
Chelidonichthys lucerna. In: Sartor P., Mannini A., Carlucci R., Massaro E., Queirolo S., Sabatini A., Scarcella G.,
No full textThe maximum length reported in literature is 77.1 cm TL (Adriatic sea), the maximum weight 6.0 kg, reported in France. The maximum reported age is 15 years. In the Adriatic Sea, the size structure highlights two main cohorts . A relationship between size, depth and season was highlighted for centralnorthern Adriatic where juveniles concentrate in shallow coastal waters during summer, probably thanks to food abundance, in compliance with literature Von Bertalanffy growth function parameters
showed that Chelidonichthys lucerna is a relatively fast-growing and moderately long-living species, like other triglids . Females seem to have a slightly faster growth rate than males and reach larger maximum size at the same age along Tuscany coast. It was suggested that length-weight relationships may vary according to factors such as food availability, feeding rate, gonad development and spawning period. The b values, calculated for the Italian seas, range from 2.86 to 3.14 (Tuscan coast and Sicilian Channel) (for both genders). In males the values of b range between 2.73 and 3.12 (Sicilian Channel and southern Tyrrhenian Sea), in females from 2.95 to 3.14 (Adriatic Sea and Sicilian Channel). A comparison between size-weight relationships, made in the Gulf of Gabès (Tunisia) through a covariance analysis, showed significant differences between males and females. This result differs from what was observed by other Authors in several areas. A morphometric and ultrastructural study of otoliths within the Triglidae family in centralnorthern Adriatic Sea, shows intra and interspecific changes in otolith shape linked to growth, species, sex and phylogenesis. A similarity can be found between species belonging to the same Genus, while differences between phylogenetically distinct species (e.g. L. cavillone and C. lucerna) and
intraspecific differences between juveniles and adults were evidenced. Typically, males of the Triglidae family, C. lucerna
included, mature earlier and at a smaller size than females. In the central-northern Adriatic Sea, sizes at 50% of sexual maturity, were estimated in 24.3 cm TL for females and 22.1 cm TL for males. Males mature at 19.2 cm TL (1.5 years old) whilst females mature at 21.6 cm TL (about 3 years old). It is observed that in Aegean Sea that maturity begins at the end of the third year for males and of the fourth year for females. Reproduction takes place along the Italian coasts between December and May, whilst along the French Mediterranean coast it occurs between January and April. It is proved the existence of a time-lag for reproductive processes of C. lucerna between the Mediterranean and North Atlantic waters. Breeding time of the Black Sea populations is reported to be from December to April and July. Spawning takes place in the Thermaikos Gulf and in the Iskenderun Bay from January to May and from December to May and in winter-spring with a peak in January-February in the Gulf of Gabès. Eggs are pelagic, spherical, smooth and not sticky. Important nursery areas were showed along the coastal strip in the vicinity of Arno, Magra and Serchio river mouths.This phenomenon was observed also in other Mediterranean and Atlantic areas. Along the Tuscany coast, juvenile (mode of about 4 cm TL), appear in December and a massive recruitment occurs in March-April. The same recruitment period is reported in Mediterranean. In the central-northern Adriatic Sea juveniles are found in spring-summer on sandy-muddy bottoms between 10 and 20 m depth, while adults prevail in autumn-winter, during the spawning period
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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