1,720,964 research outputs found
Quality and nutritional value in strawberry breeding and cultivar evaluation
No full textNutritional attributes like antioxidant activity (AA) and total phenolic content and fruit quality attributes including firmness, colour, soluble solids (SS) content and titratable acidity (TA) were determined for strawberry cultivars, selections and seedlings. The TEAC (Trolox Equivalent Antioxidant Analysis) method has been used to assess the AA of cultivars (ranged from 12.12 mumol TE/g FW to 20.50 mumol TE/g FW). Correlation between nutritional attributes TEAC and total phenolic content was found (data not shown). Quality attributes such as soluble solid content and the titratable acidity concentration, in particular their ratio (SS/TA), are important to show how a fruit is balanced (ratio = 1). Our results demonstrate a high variability in quality and nutritional attributes among strawberry cultivars and that these characters can be combine
Improved FIA-ABTS assay for measuring total antioxidant activity (TAA) of verdicchio wines (VW), extra virgin olive oil (EVOO) and fruits
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Study on adaptability of blueberry cultivars in center south Europe
No full textThe European countries have significantly different climates, growing conditions and consumer requirements for berry fruit. The increased demand of blueberry fruit and the consequent cultivation areas is limited by the reduced adaptability of cultivars to different soils and climates. The present study describes the field evaluation of nineteen Vaccinium genotypes (cultivars and selections). The combination of genotypes includes commercial varieties (cultivars) and new breeding lines (selections) released by the New Zealand Institute for Plant & Food Research Ltd. breeding program. For all the genotypes data were collected for two years (2012 and 2013) and included: total plant yield, fruit size, soluble solid content, titratable acidity and phytochemical compounds. Results from this study have demonstrated that none of the genotypes had the best of all traits, however, some adapted to the growing conditions and climat
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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