1,720,973 research outputs found
Efects of some carcass and fresh ham traits on curing loss of hams from Goland crossbred pigs. Proceedings of the 13th ASPA Congress, Piacenza, june 21-24, 1999. Recent progress in animal production science, 1, 689-691
No full textCuring losses (LO%) of 500 left dressed hams from 500 Goland hybrid pigs were analysed in relationship to some traits of carcass (weight, backfat and loin thickness by FOM) and of fresh hams (weight, L*, a* b* parameters of semimembranous, subjective scores). LO% showed an inverse and quadratic relation with carcass weight, which is confirmed as an effective management tool for affecting curing losses. LO% decreased at increasing of backfat thickness (SR) and of ham marbling and fat covering scores and increased with increasing longissimus dorsi thickness (F). The control of curing losses in selection programs for commercial hybrid pigs is suggeste
Fatty areas in cured hams measured by computer image analysis. 1. Methodology
No full textThis study aimed at setting up a computer digital image analysis (CIA) procedure able to measure areas of cross-sectioned dry cured hams and to investigate sources of variation of measures of lean and fat areas. Digital images have been acquired on 279 cross-sectioned S. Daniele hams following standard procedures by means of a digital camera. Images were analysed according to 3 methods (automatic, semiautomatic, manual) using a software able to measure: a) the entire ham section area; 2) the 'fat-eye' area (FEA, area of fat depots placed in the middle of the ham surface); 3) the 'lean' ham area. Three operators, each performing 3 replicates per image per method of CIA, have been involved and data (7,533 records) were analysed by ANOVA. Results suggest that CIA seems a method suitable for measuring areas of cross-section of dry cured hams and variability in FEA appeared high. As operator effects significantly affected measures, further analyses are needed to study repeatability and reproducibility of measurement
Fatty areas in cured hams measured by computer image analysis. 2. Repeatability
No full textThis study aimed at estimating repeatability and reproducibility of computer digital image analysis (CIA) measures of areas visible on the cross-section of dry cured hams. A total of 7,533 measures were obtained by 3 operators using 3 CIA procedures (automatic, semiautomatic and manual) and performing 3 measures per each image (279 hams). Measured areas were i) entire ham section area (EHA), ii) 'fat-eye' area (FEA, visible fatty area placed roughly in the middle of the cross-section), iii) 'lean' area (LHA). Correlations and variance components were estimated using all measures or only measures obtained after operators were trained again for spatial calibration. Correlations for measures obtained with different CIA procedures were very high and ranged from 0.95 to 1 (P0.001). Repeatability and reproducibility estimated from all measures ranged from 0.82 to 0.97 and from 0.75 to 0.97, respectively. Estimates of repeatability and reproducibility exhibited a 8 to 15% increase when only measures collected after a new training for spatial calibration were considered. In conclusion, assessment of visual appearance of cross-sectioned dry cured hams can be obtained through CIA using one operator and a single measurement under accurate spatial calibratio
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
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