1,721,116 research outputs found
A multi-product approach for detecting subjects’ and objects’ covariates in consumer preferences
No full textPurpose – A different framework based on a parametric version of the process generating the hedonic scores is adopted. More precisely, a probability distribution for ordinal responses is proposed as a mixture of two components, denoted as feeling (as expressed preference) and uncertainty component (as inherent indecision). The purpose of this paper is to analyse the effect of covariates on the consumers’ behaviour pattern according to a statistical model. Design/methodology/approach – Sample data come from a multidisciplinary research aimed to improve the quality and marketability of soft fruits. Then, a stochastic model with subjects’ and objects’ covariates is built and the interpretation of significant results is discussed. Findings – The joint effects of personal characteristics and chemical contents of juice on the hedonic scores given by consumers are examined and graphically depicted by means of a significant model. Originality/value – The paper suggests a multi-product approach to expressed hedonic scores by means of a generalization of CUB models
Insect-based feed in aquaculture: A consumer attitudes study
Full text linkThe aquaculture industry is currently faced with the major challenge of finding alternative protein sources for feeding aquatic species. The goal is to mitigate the environmental impact of conventional feed production in order to satisfy the demand of consumers for sustainable and environmentally friendly food. Fishmeal and fish oil have been the predominant substrates used in the fish farming industry to date, but insects are now emerging as promising feed substitutes. However, the feeding of insects to fish continues to be perceived as unconventional by consumers, although only few studies have actually explored European consumers' attitudes towards animal food products fed with insects. This study aimed to fill this gap by investigating consumer behaviors towards the consumption of fish fillets obtained from fish fed an insect-based feed. The overall goal was to understand the interconnection between sociodemographic variables, namely levels of knowledge, food neophobia, and food consumption sustainability, and attitudes towards feed quality, climate change, shopping sustainability, and the sustainability of insect-based feed. To this end, an online survey was conducted on 303 Italian consumers aged 18-78 years (52.4% men). The analysis of the dataset was conducted by modelling the independent categorical variables with their attitudes towards the four topics studied by Multiple Linear Regression, after having established their effects using the Pearson Chi-Square test and one-way ANOVA. Our results demonstrate that sociodemographic variables, such as gender and age, are strongly correlated with attitudes towards climate change, while diet is associated with attitudes towards shopping sustainability. The measured level of food consumption sustainability correlates with both attitudes. At the same time, a high level of knowledge correlates with a strong attitude towards the sustainability of insect-based feed. Overall, we conclude that providing specific groups of consumers with meaningful information related to the use of insect-based feed in aquaculture will increase the likelihood of their accepting this innovation. Our study also offers insights that can help identify categories of consumers who could be more interested in choosing products from insect-fed animals
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
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe 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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