1,721,198 research outputs found
Physical activity, appetite control and energy balance : implications for obesity
No full textThroughout the developed world there is an increasing prevalence of childhood obesity. Because of this increase, and awareness of the risks to long term health that childhood obesity presents, the phenomena is now described by many as a global epidemic. \ud
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Children, Obesity and Exercise provides sport, exercise and medicine students and professionals with an accessible and practical guide to understanding and managing childhood and adolescent obesity. It covers: \ud
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overweight, obesity and body composition; \ud
physical activity, growth and development; \ud
psycho-social aspects of childhood obesity; \ud
physical activity behaviours; \ud
eating behaviours; \ud
measuring children's behaviour; \ud
interventions for prevention and management of childhood obesity. \ud
Children, Obesity and Exercise addresses the need for authoritative advice and innovative approaches to the prevention and management of this chronic proble
Behavioural Aspects of Nutrition
No full textWelcome to the new challenge facing General Practitioners. We are literally killing ourselves with lifestyle based diseases! This comprehensive text summarises aspects of lifestyle medicine, by examining the causes, measurement, and management of a range of modern health problems with predominantly lifestyle-based aetiologies. This practical book extends from disease prevention to modifying risk factors and rehabilitation. It as an invaluable resource for general practitioners, practice nurses and clinicians but its style demands it to be read by anyone who cares about their health.\ud
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Key Features\ud
1. Presents the latest research\ud
2. Written by a team of renowned experts\ud
3. Highly practical and accessible format\ud
4. Includes practice tips, key points and professional resource
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
Description and evaluation of a Newton-based electronic appetite rating system for temporal tracking of appetite in human subjects
No full textThis study assessed the reliability and validity of a palm-top-based electronic appetite rating system (EARS) in relation to the traditional paper and pen method. Twenty healthy subjects [10 male (M) and 10 female (F)] — mean age M=31 years (S.D.=8), F=27 years (S.D.=5); mean BMI M=24 (S.D.=2), F=21 (S.D.=5) — participated in a 4-day protocol. Measurements were made on days 1 and 4. Subjects were given paper and an EARS to log hourly subjective motivation to eat during waking hours. Food intake and meal times were fixed. Subjects were given a maintenance diet (comprising 40% fat, 47% carbohydrate and 13% protein by energy) calculated at 1.6×Resting Metabolic Rate (RMR), as three isoenergetic meals. Bland and Altman's test for bias between two measurement techniques found significant differences between EARS and paper and pen for two of eight responses (hunger and fullness). Regression analysis confirmed that there were no day, sex or order effects between ratings obtained using either technique. For 15 subjects, there was no significant difference between results, with a linear relationship between the two methods that explained most of the variance (r2 ranged from 62.6 to 98.6). The slope for all subjects was less than 1, which was partly explained by a tendency for bias at the extreme end of results on the EARS technique. These data suggest that the EARS is a useful and reliable technique for real-time data collection in appetite research but that it should not be used interchangeably with paper and pen techniques
Childhood obesity - an introduction
No full textThroughout the developed world there is an increasing prevalence of childhood obesity. Because of this increase, and awareness of the risks to long term health that childhood obesity presents, the phenomena is now described by many as a global epidemic. \ud
\ud
Children, Obesity and Exercise provides sport, exercise and medicine students and professionals with an accessible and practical guide to understanding and managing childhood and adolescent obesity. It covers: \ud
\ud
overweight, obesity and body composition; \ud
physical activity, growth and development; \ud
psycho-social aspects of childhood obesity; \ud
physical activity behaviours; \ud
eating behaviours; \ud
measuring children's behaviour; \ud
interventions for prevention and management of childhood obesity. \ud
Children, Obesity and Exercise addresses the need for authoritative advice and innovative approaches to the prevention and management of this chronic proble
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
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