1,721,061 research outputs found
Antioxidant capacity and morphological changes in monolayer CACO2 cells system by treatment with alpha-tocopherol and an oxidative compound
No full textEffect of different cooking techniques on the nutritional quality of trout and whiting
No full textFish lipids contain large amounts of eicosapentaenoic (EPA 20:5 n-3) and docosahexaenoic (DHA 22:6 n-3) acids. Epidemiological studies stating an inverse correlation between ischemic heart disease and fish consumption never considered the fatty acid composition changes due to cooking. This research is aimed towards an evaluation of the effect of cooking on the fatty acid composition of two fish species (a fresh-water trout and a salt-water whiting). For cooking we chose a traditional system like convection electric oven and a more innovative one like microwave oven. Tissue lipids were extracted by the method of Folch and the fatty acids were transformed into their methylesters for GLC analysis. The fatty acid compositions of both fish species before and after cooking were statistically analysed by Student's t test. Our results showed that trout contains more fat than whiting but less n-3 fatty acids. Furthermore, unsaturated fatty acids were shown to be more stable after microwave cooking, as confirmed by P/S and M/S ratios
Antioxidant capacity and morphological changes in monolayer CaCo2 cells system by treatment with poliphenolic compounds extracted from virgin olive oil and an oxidatiave compound. Preliminary study.
No full textComparison of different (biosensor, spectrophotometric and fluorimetric) methods for measuring the antioxidant properties of white and red wines
No full textin Eurosensors, Czech Technical University, Pragu
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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