Why Do Some Primary Care Practices Engage in Practice Improvement Efforts Whereas Others Do Not?

Why do some overweight children remain overweight, whereas others do not?

OBJECTIVE To study the dynamics of childhood overweight and the influence of dietary intake on tracking of overweight. DESIGN AND SETTING A follow-up study conducted in China. SUBJECTS Ninety-five overweight children, 6-13 years old, identified from 1455 children at baseline, were followed over a 2-year period. METHODS Data on anthropometry and 3-day dietary intake were collected at basel...

Why do some adolescents encounter everyday events that increase their civic interest whereas others do not?

Using a longitudinal design, we asked 2 age cohorts of adolescents (15- and 18-year-olds) whether they, during the last year, had experienced events that had increased their civic interest and about details of their experiences. Based on self-determination theory, we predicted that the adolescents who reported having experienced events of this kind had already been more interested and had had m...

Why do bacterial plasmids carry some genes and not others?

Previous explanations of why bacterial genes for certain "optional" traits tend to occur on plasmids rather than chromosomes are based on an outdated misunderstanding of natural selection. They also fail to explain why certain characters that are ubiquitous in some bacterial species tend to occur on plasmids. This paper shows that all major classes of traits usually associated with plasmids rat...

Why do some orthodontic treatments last so long while others do not?

Why some dermatologists do not practice store-and-forward teledermatology.

N umerous studies comparing store-andforward (S&F) teledermatology with conventional, face-to-face care have shown several advantages of S&F teledermatology, including improved patient access, comparable diagnostic accuracy, costeffective care, and remote medical education. However, despite these reported benefits of teledermatology in the medical literature, the pace of adoption for S&F telede...