Medicine and Health Sciences Commons^™

Low-Cost Hiv-1 Diagnosis And Quantification In Dried Blood Spots By Real Time Pcr, Nishaki Mehta, Sonia Trzmielina, Bareng Nonyane, Melissa Eliot, Rongheng Lin, Andrea Foulkes, Kristina Mcneal, Arthur Ammann, Vindu Eulalievyolo, John Sullivan, Katherine Luzuriaga, Mohan Somasundaran

Rongheng Lin

BACKGROUND: Rapid and cost-effective methods for HIV-1 diagnosis and viral load monitoring would greatly enhance the clinical management of HIV-1 infected adults and children in limited-resource settings. Recent recommendations to treat perinatally infected infants within the first year of life are feasible only if early diagnosis is routinely available. Dried blood spots (DBS) on filter paper are an easy and convenient way to collect and transport blood samples. A rapid and cost effective method to diagnose and quantify HIV-1 from DBS is urgently needed to facilitate early diagnosis of HIV-1 infection and monitoring of antiretroviral therapy.

METHODS AND FINDINGS: We …

Intra-Individual Variation In Children's Physical Activity Patterns: Implications For Measurement, Kate Ridley, Tim Olds, Beth P. Hands, Dawne Larkin, Helen Parker

Health Sciences Papers and Journal Articles

Children's physical activity (PA) patterns change form day to day. This intra-individual variability affects precision when measuring key physical activity and sedentary behavior variables. This paper discusses strategies to reduce the random error associated with intra-individual variability and demonstrates the implications for assessing PA when varying number of days are sampled. Self-reported data collected on two hundred and ninety eight 13- to 14-year-olds were used to compare estimates of PA and sedentary behaviour derived from between 1 and 7 days of recall data. Large intra-individual coefficients of variation were calculated for physical activity level (14.5%), moderate-to-vigorous physical activity (83.4%), screen …

Confirming The Existence And Size Of Behavioural Segments In The Adolescent Sun Protection Project: Results Of A Nsw Schools Survey, Lance R. Barrie, Sandra C. Jones, Melissa Lynch, Kay Coppa

Faculty of Health and Behavioural Sciences - Papers (Archive)

Sun protection behaviours among Australian adolescents are consistently low. While otherpopulation groups (notably younger children and adults) have responded to social marketingcampaigns and educational interventions, efforts to encourage adolescents to engage in sunprotection have been largely ineffective. This paper reports on the extension of previousqualitative work which identified different behavioural segments within the 14-16 year oldage-group. The present study consisted of a survey of over 2,300 adolescents to confirm theexistence and size of these segments.Keywords: market orientation, loyalty, social, behaviour

Can Social Cognitive Theory Constructs Explain Socio-Economic Variations In Adolescent Eating Behaviours? A Mediation Analysis, Kylie Ball, D Crawford, Francis A. Worsley, Gayle Savige, N Andrianopoulos, A. Macfarlane

Faculty of Health and Behavioural Sciences - Papers (Archive)

Adolescents of low socio-economic position (SEP) are less likely than those of higher SEP to consume diets in line with current dietary recommendations. The reasons for these SEP variations remain poorly understood. We investigated the mechanisms underlying socioeconomic variations in adolescents eating behaviours using a theoretically derived explanatory model. Data were obtained from a community- based sample of 2529 adolescents aged 12 to15 years, from 37 secondary schools in Victoria, Australia. Adolescents completed a webbased survey assessing their eating behaviours, self-efficacy for healthy eating, perceived importance of nutrition and health, social modelling and support and the availability of foods in …