1,720,999 research outputs found

    Sustainability and organic production : how information influences consumer’s expectation and preference for yogurt

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    The purposes of this experimental study are to investigate consumers’ attitude and general knowledge about sustainability; to evaluate how information about organic production may affect consumers’ food acceptability and expectations; to establish whether and how much commitment to sustainability influences individuals’ preferences for organic products. Results showed that consumers are aware of the sustainability concept, but they are not able to define it precisely thus indicating that sustainability is a widespread issue in individuals’ mind. This was confirmed also by the lack of information perceived by respondents about sustainable products. When subjects were grouped according to their sustainability level, the majority of them (74%) were defined as ‘‘uncertain’’. A major difference was found between ‘‘sustainable’’ and ‘‘non-sustainable’’ individuals in the attitude, purchase intentions, and behaviors as regarding organic products. Sustainable subjects were more interested in and proactive for such products. This behavioral discrepancy is in line with the liking gap for organic products found between the two groups. Indeed, when organic and conventional yogurts were evaluated for liking in blind, expected and informed conditions, sustainable subjects had a higher expectation towards organic yogurt than non-sustainable individuals. Furthermore, non-sustainable subjects expressed lower expectations from organic samples than from conventional ones, whereas the opposite behavior was observed in Sustainable subjects. Only for sustainable and uncertain subjects, organic yogurts produced negative disconfirmation, which was associated with an incomplete assimilation effect. Hence, the information about yogurt’s organic origin may affect people’s expectations, and this influence is especially found in the case of respondents which are committed to sustainability or are uncertain about this issue as compared to non-sustainable individuals

    Green color drives rejection of crackers added with algae in children but not in adults

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    Recently, algae are receiving increasing attention as a nutritious and sustainable food source. Despite this, consumer acceptance of algae or food products added with algae remain an understudied topic, especially considering children. This study aims to assess the drivers of (dis)liking of crackers added with 5 % of different micro and macroalgae along with a control cracker without any addition, in a group of children (n = 114, 8-11 years, 47.4 % girls) and adults (n = 108, 18-67 years, 61.1 % females). Participants evaluated crackers' liking and perceived sensory attributes using the check-all-that-apply method. Children and adults showed similar crackers perception and liking. Crackers added with Lithothamnium calcareum and the fractionated Spirulina blue protein were comparable to the control sample and were preferred over the crackers added with green Spirulina (entire bacterium), Palmaria palmata and Saccharina latissima. Children differed from adults only for the lower acceptance provided to the sample added with green Spirulina. Correspondence Analysis and Principal Coordinate Analysis revealed that, for this sample, green color was the main driver of rejection for children, while it was a driver of liking for the adults. The present study suggests that algae are a promising ingredient for the development of healthy and sustainable products targeted to children, although color might be a consumption barrier among the pediatric population. Personalized strategies aimed at children must be implemented such the use of algae (Lithothamnium calcareum) or ingredients from algae (Spirulina blue protein) with familiar or engaging colors

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The 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

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    “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

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    We 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

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    We 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

    Author Index

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    koamabayili/VECTRON-author-checklist: VECTRON author checklist

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    We 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
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