We studied the effect of an increase in physical activity on energy balance and body composition without interfering with energy intake (EI). Sixteen women and sixteen men, aged 28-41 years, body mass index 19.4-26.4 kg/m2, not participating in any sport before the start of the experiment, prepared to run a half-marathon competition after 44 weeks. Measurements of body composition, EI and energ...

OBJECTIVE A method that would allow in situ comparison of the degrees of adherence to genital epithelia by the biofilms of the normal flora. SUBJECTS Four healthy women. SETTING Departments of Biological Sciences, University of Calgary, and of Medicine, University of British Columbia. METHODS In situ, scraped specimens were taken from the vagina and ectocervix before and after vigorous va...

The selection of an adequate regression model is the basis for obtaining accurate and reproducible results during the bionalytical method validation. Given the wide concentration range, frequently present in bioanalytical assays, heteroscedasticity of the data may be expected. Several weighted linear and quadratic regression models were evaluated during the selection of the adequate curve fit u...

BACKGROUND The authors evaluated the efficacy of an erbium,chromium: yttrium,scandium,gallium,garnet (Er,Cr:YSGG) laser-powered hydrokinetic system (HKS) versus that of rotary instrumentation for root canal débridement. METHODS The authors studied four uninstrumented controls and two test groups of 18 matched pairs of teeth. Teeth from each pair underwent different instrumentation but receive...

In this study, we conducted a pretest-posttest investigation of a sports-oriented occupational therapy intervention using surfing in an experiential, skills-based program to support veterans with symptoms of posttraumatic stress disorder (PTSD) in their transition to civilian life. The purpose of this feasibility study was to evaluate the intervention for attendance rates and retention in the p...

UnifyPow is a freeware SAS ® macro that performs statistical power analysis and other matters related to sample-size choice. Its functionality covers an extensive set of methods. One-group tests include the t and Wilcoxon for H 0 : μ = μ 0 ; the binomial and Z approximation for H 0 : π = π 0 ; t and Wilcoxon for paired means; McNemar's for paired proportions; and Fishers's r-to-Z for H 0 : ρ = ...

Purpose: The aim of this study is to evaluate effectiveness of regularly used disinfectant solution in the disinfection of acrylic resin specimens contaminated with Candida albicans. Materials and methods: Thirty six acrylic resin specimens contaminated in vitro with 1.5×10 8 cfu/ml suspensions of microorganisms were immersed in disinfectants for 10 minutes, the control group was not submitted ...