1,720,966 research outputs found
Metodiche di campionamento e di analisi dell’aerosol di olio particolato nelle sale tessitura dell’industria laniera.
No full textStudio dei fumi di saldatura: applicazione dell’assorbimento atomico con campionatore a fornace di grafite al dosaggio di cobalto, cromo, ferro, manganese, nichel, piombo e rame.
No full textShape based tool to discriminate the Italian clam Tapes decussatus (L.) form T. philippinarum (Adams & Reeve, 1850).
No full textExternal Shape Differences between Sympatric Populations of Commercial Clams Tapes decussatus and T. philippinarum
No full text
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
Shape analysis of different populations of clams in relation to their geographical structure
No full text10 pages, 6 figures, 5 tables.Bivalves are excellent candidates for geographically based studies of the morphological variation in individuals of different populations based on the analysis of their shape profiles. In this study, we quantified the overall shell shape differences in individuals of different populations of Ruditapes decussatus and Ruditapes philippinarum in relation to their geographical and genetic distances. A total of 395 and 124 individuals of R. decussatus (nine populations) and R. philippinarum (four populations), respectively, were sampled in different Mediterranean and Atlantic coastal locations. Pictures of the left valve were taken from all individuals. Their profiles were analysed using elliptic Fourier analysis. Mean outlines were computed. In order to classify different individuals for species, the coefficients of harmonic equations were analysed by partial least square discriminant analysis and soft independent modelling of class analogy. The results showed a high percentage of correct classification (99%) between the two species in the independent test. We found that the morphological distance between R. philippinarum and R. decussatus is higher than the morphological distance among populations of the same species. The absence of correspondence between the geographical location and the pattern of morphological and genetic variation indicates the occurrence of a reaction norm in the morphological adaptation of shell shapes to different local environmental conditions.We would like to thank Davide Cascione for his help during the process of image acquisition. Jacopo Aguzzi is a Fellow of the ‘Juan de la Cierva’ Postdoctoral Program (MECSpain).Peer reviewe
Effects of rearing conditions on skeletal anomalies typology and frequency in gilthead seabream Sparus auratus juveniles.
No full textThis study analyzed different lots of gilthead seabream juveniles outcoming from the same egg batch, but reared under different (intensive vs semi-intensive) conditions aimed at: (1) quantitatively and qualitatively analyzing whether differences in skeletal elements (shape and number) arise; (2) to investigate if a relationship between skeletal bone tissue/ossification and some environmentally-induced malformation exists; and (3) identifying the best practices for seabream larval rearing in order to obtain lower deformity rates.
A total of 981 reared juveniles of gilthead seabream were analysed, among which 721 were from a commercial hatchery located in Northern Italy (Valle Figheri, Venice, Italy), and other 260 were obtained from the Hellenic Center for Marine Research (Iraklion, Crete, Greece). These individuals were from 4 different eggs batches (Groups 1-4), for a total of 10 different lots. Each egg batch/group was split after hatching in two lots, and reared with two different methodologies, intensive and semi-intensive rearing. Some lots (Group 3: INIT19, INIT18, LVIT04, LVIT05) were sampled at two different ages. Semi-intensive lots were reared under two different methodologies: Large Volumes (sensu Cataudella et al., 2002)and Mesocosm (sensu Divanach and Kentouri, 2000). All the samples were analyzed (whole mount staining) for skeletal anomalies and variation in meristic counts.
Lower severe skeletal anomalies incidences and meristic counts variability were found in all the semi-intensively reared lots, with significant higher capacity of Large Volumes of ameliorating anatomical quality of juveniles than Mesocosms.
In all the semi-intensive lots, the bones undergone intramembranous ossification showed constant lower incidences of malformations whilst endochondrally and perichondrally ossifying skeletal elements did not always exhibit the same clear pattern.
This study was funded by the Italian Ministry for Agriculture, Food and Forestry Policy (Law 41/82)
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
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