BACKGROUND Responsiveness refers to a measurement tool's ability to detect change in performance over time. The aim of the review was to summarise studies of responsiveness of lower limb physical performance measures during inpatient care after stroke. METHODS A systematic literature review was conducted. Prospective studies that included participants with a diagnosis of stroke, were commence...

Determining the appropriate sample size for a study, whatever be its type, is a fundamental aspect of biomedical research. An adequate sample ensures that the study will yield reliable information, regardless of whether the data ultimately suggests a clinically important difference between the interventions or elements being studied. The probability of Type 1 and Type 2 errors, the expected var...

Statistical power depends on the size of the effect of interest. However, effect sizes are rarely fixed in psychological research: Study design choices, such as the operationalization of the dependent variable or the treatment manipulation, the social context, the subject pool, or the time of day, typically cause systematic variation in the effect size. Ignoring this between-study variation, as...

Patterns of coexistence among competing species exhibiting size- and food-dependent growth remain largely unexplored. Here we studied mechanisms behind coexistence and shifts in competitive dominance in a size-structured fish guild, representing sprat and herring stocks in the Baltic Sea, using a physiologically structured model of competing populations. The influence of degree of resource over...

low density lipoprotein (ldl) subclass pattern b is characterized by predominance of small dense ldl. subjects with pattern b tend to have higher triglyceride (tg) and lower levels of high density lipoprotein cholesterol (hdl-c). small dense ldl is associated with increased risk of coronary disease. in this study, effect of non-insulin dependent diabetes mellitus (niddm) on ldl size, plasma tg ...