This paper presents the first analysis of dental microwear textures of carnivorans. Carnassial microwear is examined for three large carnivorans, the cheetah Acinonyx jubatus, African lion Panthera leo and spotted hyaena Crocuta crocuta using dental microwear texture analysis, which combines confocal microscopy with the study of scale-sensitive fractal geometry. Results indicate significant differences in the microscopic wear textures of these carnivores consistent with dissimilarities in their reported feeding behaviours. Acinonyx jubatus carnassial shearing facets are characterized by low surface texture complexity and high anisotropy, while P. leo and C. crocuta evince less wear texture anisotropy and more complexity. Panthera leo and C. crocuta have more heavily pitted surfaces, a wider size range of wear features and scratches that vary in their orientations relative to the long axis of the carnassial blade. Further, C. crocuta is most variable in overall surface complexity and also has the highest average complexity values. These results are consistent with differences in bone consumption rates among the three species, wherein cheetahs typically avoid bone, lions triturate it on occasion and spotted hyaenas comminute it more often. Incidences of bone consumption in carnivores reflect degree and/or type of carcass utilization and can be used as a general guide for niche partitioning. Thus, the application of microwear analyses to carnivores can be used to interpret competition and niche position within a guild of fossil carnivores across space and through time.

Yes / The notion of educating the public through generic healthy eating messages has pervaded dietary health promotion efforts over the years and continues to do so through various media, despite little evidence for any enduring impact upon eating behaviour. There is growing evidence, however, that tailored interventions such as those that could be delivered online can be effective in bringing about healthy dietary behaviour change. The present paper brings together evidence from qualitative and quantitative studies that have considered the public perspective of genomics, nutrigenomics and personalised nutrition, including those conducted as part of the EU-funded Food4Me project. Such studies have consistently indicated that although the public hold positive views about nutrigenomics and personalised nutrition, they have reservations about the service providers’ ability to ensure the secure handling of health data. Technological innovation has driven the concept of personalised nutrition forward and now a further technological leap is required to ensure the privacy of online service delivery systems and to protect data gathered in the process of designing personalised nutrition therapies.

Purpose. The purpose of the study is to develop a better understanding of the process of behaviour change and factors which contribute to an increased level of fruit and vegetable intake (F&V) among men in New Zealand. The study aims to determine the impact of psychosocial and contextual factors integrated into an extended stage model. As a more parsimonious continuous model maybe sufficient for understanding F&V intake, the study also plans to evaluate the impact of psychosocial and contextual factors on behaviour, and whether intentions is the mechanism by which the psychosocial factors influence behaviour. Design. Data was collected using a self administered questionnaire in a mail survey from N = 518 men aged 18 years and over randomly selected from the electoral roll. Mean differences in factors across the stages of change were assessed with one way ANOVAs and Games Howell post hoc tests, and trend analyses assessed linear and non-linear components of trend. The independent impact of factors on intentions and behaviour was assessed with hierarchical multiple regression analyses. Measures. Stage of change was assessed with a single item measure, F&V intake with a 7-item food frequency questionnaire, and food insecurity with items used in the 1997 National Nutrition Survey. Previously developed measures were used to assess the pros, cons, self efficacy, self identity, and susceptibility to disease. Scales were developed and adapted for F&V intake for control, descriptive and subjective norms. Results. In total, 51% of men were in the action/maintenance stage and 32%, 10% and 7% in the precontemplation, contemplation, and preparation stages respectively. Mean F&V intake was 3.92 (SD = 2.08) servings a day and 30.4% were eating at least 5 servings. All factors differed significantly across the stages of change. The predictor variables collectively explained R² = 43% (42% adjusted) in intentions and 40% (38% adjusted) in behaviour. The impact of self efficacy and intentions on behaviour depended in part on household food insecurity status. Discussion. Similar conclusions were reached using the stage and continuous model. To increase intentions of eating 5 or more servings of F&Vs a day in the future, interventions should modify perceived norms, self efficacy, pros and cons, and awareness of F&V guidelines. Interventions targeting those with high food insecurity may also be required to help translate their intentions into action.

The purpose of this study was to understand the factors that encourage midlife women to make exercise and dietary changes, the prevalence of those changes, the process by which women make them, the factors that support or impede them, and how we can enhance women’s capacity to make health behaviour changes in midlife. Since the literature highlighted the importance of self-efficacy in changing health behaviour, and of health-related quality of life as a widely recognized measure of women’s mental and physical wellbeing, the study sought to understand the relationship between exercise and dietary self-efficacy, health behaviour change and health-related quality of life (SF-36), by testing a modified version of Bandura’s 1977 and 2002/2004b models of self-efficacy. The methodology involved postal surveys as well as semi-structured interviews with a subsample of the women who completed the survey. Surveys were sent to 866 women aged 51-66 years from rural and urban locations in Queensland, Australia. Five hundred and sixty-four (69%) were completed and returned. Survey data was analysed using descriptive and bivariate statistics and structural equation modeling. Thematic analysis was used to analyse interviews. The results confirmed that midlife is a significant time for women to make positive health behaviour changes. Almost 40% of women made a change to their exercise and around 60% made a dietary change since turning 40. The main exercise change was doing more walking and the most common dietary change was reducing fat intake. Self-efficacy was shown to be a key influence on whether women made positive changes to their health in midlife. In the relationship between health behaviour change and health-related quality of life, making a positive change to exercise was significantly related to physical but not mental health, and making a dietary change was not related to either physical or mental health. Body mass index was shown to be an important influence on both self-efficacy and health-related quality of life (particularly physical health). Interviews were conducted with 29 of the participants. Interview data reinforced that the main motivations to make a positive health behaviour change among midlife women were being overweight, having an injury or being diagnosed with an illness or health condition. Witnessing the hardship experienced by others with a degenerative disease could also prompt a positive behaviour change. Successful changes mainly involved modifying existing practices and repeating new behaviours until they became part of the daily routine. The main facilitators of health behaviour change were having positive role models, having more time due to retirement, and having support from significant others (such as husbands), health professionals and organizations such as Weight Watchers. The main obstacles to making changes were work, care giving, illness and injury. Bandura’s (1977, 2000/2004b) model was partially supported, but the cross-sectional nature of the study may have been a limitation in demonstrating all aspects of the self-efficacy process. In summary, women are willing to make positive health behaviour changes in midlife, but they need education and support to have those changes be effective. It is anticipated that this research will lead to a greater understanding of the significance of midlife as a time for making healthy lifestyle changes that have the potential to improve women’s health and quality of life in later years.