1,720,970 research outputs found
Can be Buckwheat a source of antioxidant activity incraft beers?
No full textSeveral studies have focused on the production of beer from glutenfree
cereals such as rice, maize, millet, and pseudocereals such as
buckwheat, quinoa, and amaranth since they are gluten free with
compounds that are claimed to have positive effects on health (Arendt
and Dal Bello, 2008). Maccagnan et al. (2004) used buckwheat mainly as
an unmalted adjunct in micro brewing for the production of gluten free
beer. The results of this study revealed that buckwheat has suitable
beer-making properties with regard to both appearance and taste. The
aim of this work was to evaluate the possible correlation among
polyphenols, flavanoids content and antioxidant activity (AA) of craft
beers produced with increasing amount of buckwheat (0%, 20% and
40% w/w). All beers were bottle conditioned
Hops "made in Italy": do Italians do it bitter?
No full textThe aim of this work was to evaluate the adaptability of some hop varieties to the soil
and climate of the North East (NE) of Italy (Udine); in particular, 21 varieties grown in
Udine were compared with the corresponding varieties of the market. The brewing
value of hops is primarily attributed to the precursors of the flavour- and bitter-active
compounds found in the resins (α- and β-acids) secreted by the lupulin glands; it is
well estabilished that the α-acids are by far the most important constituents of the
hop resins (Urban et al., 2013). Furthermore, cohumulone was said to elicit a harsh
and unpleasant bitterness when superior to 30% of the total α-acids (Intelmann et al.,
2009). The hop essential oils are also important to the brewer as they provide flavour
and aroma characteristics to the beer. The bulk of the hop oil is made up of
hydrocarbons and oxygenated components. The hydrocarbons can be classified into
three groups: aliphatic hydrocarbons, monoterpenes and sesquiterpenes. In the
hydrocarbon fraction, the most important and abundant monoterpene is β-myrcene,
the major components of the sesquiterpene group are α-humulene, β-caryophyllene
and β-farnesene (Almaguer et al., 2014). It is known that both α-acids and
composition of the total essential oil of hops are affected by numerous factors such as
hop variety, environmental, drying and storage conditions (Hautke and Petříček,
1967)
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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