BACKGROUND As a result of the American Academy of Pediatrics' recommendation that healthy infants be placed on their side or back for sleep, the percentage of infants sleeping prone has decreased dramatically. With the increase in supine sleeping, pediatricians have questioned if there are differences in the rate of acquisition of early motor milestones between prone and supine sleeping infants...

Although recent attention has focused on the likelihood that contemporary sexual minority youth (i.e., gay, lesbian, bisexual [GLB]) are "coming out" at younger ages, few studies have examined whether early sexual orientation identity development is also present in older GLB cohorts. We analyzed retrospective data on the timing of sexual orientation milestones in a sample of sexual minorities d...

In order to determine if twinning impacted achievement of motor milestones the attainment of early motor milestones in twins was examined and compared to published data from singletons of the same age from the same culture and birth years. We examined the influence of twinning, sex, zygosity and birth cohort (1987-2001) on the motor development of twins aged 0 to 24 months. Data on the attainme...

We examine commonly observed forms of payment, such as milestones, royalties, or consulting contracts as ways of engaging inventors in the development of licensed inventions. We show that when milestones are feasible, royalties are not optimal unless the licensing firm is risk averse. The model also predicts the use of consulting contracts which improve the firm’s ability to monitor inventor ef...

B eginning in 2013, the Accreditation Council for Graduate Medical Education (ACGME) required program directors to semiannually report milestone data for their trainees. The milestones are competency-based observable behaviors that mark a trainee’s developmental progression toward unsupervised practice by enhancing learner assessment and feedback and program evaluation and improvement. The aim ...