in R, where t ranges over the unit circle S = R/2πZ. The curve Uk(t) is locally neighborly: as long as t1, . . . , tk lie in an open arc of S of a certain length φk > 0, the convex hull of the points Uk (t1) , . . . , Uk (tk) is a face of Bk. We characterize the maximum possible length φk, proving, in particular, that φk > π/2 for all k and that the limit of φk is π/2 as k grows. This allows us...

The aim of this study was to evaluate the effect of the direction and magnitude of the rotation moment to loaded orthodontic miniscrews on stability. In six adult male beagle dogs (12 months old), 36 orthodontic miniscrews were inserted into the mandibular buccal alveolar bone without drilling. Immediately after insertion, 24 miniscrews were loaded with 1- and 2-Ncm nickel titanium (NiTi) coil ...

BACKGROUND Biomechanical factors are known to be important in knee osteoarthritis (OA) development and progression. This study was designed to determine changes of hamstrings muscle activation, knee adduction moment and ankle rotation angle in two knee osteoarthritis (mild and moderate) and a healthy control group. METHODS 16 females (10 with mild and 6 with moderate medial knee osteoarthriti...

Gait measures are used to evaluate change in patients with knee osteoarthritis (OA), but reliability has not been fully established in this population. This study examined test-retest reliability of knee angle and moment gait waveform characteristics captured using discrete parameters and principal component analysis (PCA) in individuals with moderate knee OA. Participants (n=20) underwent thre...