1,720,967 research outputs found
The influence of perceptual and cognitive factors in the development of food preferences
No full textDespite a considerable amount of research investigating factors that influence the development of food preferences, there is very little research considering factors associated with food items themselves and the cognitive processes used by children to determine acceptance or rejection of a novel food. When offered a new food, children will see what colour, size and shape it is and may be able to determine its texture. In addition, they will be able to smell the food and may even be informed of what the food is called by their parents labelling it. Hence children will have a significant amount of knowledge of what the food they are being offered is like. It may therefore be reasonable to suggest children will use this knowledge and make comparisons to prior experience with 'similar' foods. This thesis presents three experimental chapters which aim to explore the role of perceptual (e.g. colour, texture and size) and cognitive (categorisation) factors on the development of food preferences. Chapter 2 presents an Explicit Preference Task, which enables children to self-report on their food preferences, complemented by parental report Food Preference and Frequency questionnaires. Chapter 3 presents a Longitudinal Food Diary method exploring the relationship between preference and exposure. Finally in Chapter 4 using a series of match-to-sample experiments to consider if children use colour as a basis for categorisation of food objects, a comparison is made against non-food objects. Results indicated children to dislike food colours particularly associated with vegetables more so than other food colours. This was found to be related to the amount of exposure they had to those foods and specifically results indicated children to use food colour as a basis for rejection of novel foods. It was also observed that whilst children use shape as a basis for categorisation of non-food objects, they are more inclined to categorise foods on the basis of colour
The influence of perceptual and cognitive factors in the development of food preferences
Get PDFDespite a considerable amount of research investigating factors that influence the development of food preferences, there is very little research considering factors associated with food items themselves and the cognitive processes used by children to determine acceptance or rejection of a novel food. When offered a new food, children will see what colour, size and shape it is and may be able to determine its texture. In addition, they will be able to smell the food and may even be informed of what the food is called by their parents labelling it. Hence children will have a significant amount of knowledge of what the food they are being offered is like. It may therefore be reasonable to suggest children will use this knowledge and make comparisons to prior experience with 'similar' foods. This thesis presents three experimental chapters which aim to explore the role of perceptual (e.g. colour, texture and size) and cognitive (categorisation) factors on the development of food preferences. Chapter 2 presents an Explicit Preference Task, which enables children to self-report on their food preferences, complemented by parental report Food Preference and Frequency questionnaires. Chapter 3 presents a Longitudinal Food Diary method exploring the relationship between preference and exposure. Finally in Chapter 4 using a series of match-to-sample experiments to consider if children use colour as a basis for categorisation of food objects, a comparison is made against non-food objects. Results indicated children to dislike food colours particularly associated with vegetables more so than other food colours. This was found to be related to the amount of exposure they had to those foods and specifically results indicated children to use food colour as a basis for rejection of novel foods. It was also observed that whilst children use shape as a basis for categorisation of non-food objects, they are more inclined to categorise foods on the basis of colour.EThOS - Electronic Theses Online ServiceGBUnited Kingdo
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
Editorial
No full textThe need for emotional support services for children and young people has been illustrated through reports of rising levels of distress (Collishaw, Maughan, Goodman, & Pickles, 2004; Green, McGinnity, Meltzer, Ford & Goodman, 2004), the prevalence of abuse and neglect (Cawson, Wattam, Brooker, & Kelly, 2000) and increased prescription of psychopharmaceutical medication (Timimi, 2009). One of the responses to this growing need for emotional support has been the establishment of school-based counselling. Since the min-1990s, services have become more prevalent and it has been estimated that 75% of UK schools may provide individual therapeutic counselling (Jenkins & Polat, 2005). A recent meta-analysis of international studies of school based therapeutic interventions found moderate improvements in the psychological well-being of young people (Baskin eta al., 2010). Similarly, Cooper (2009) reported large reductions in psychological distress for school-based counselling as practiced in the UK
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
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