We introduce the concept of wafer bowing to affect nanoimprinting. This approach allows a design that can fit the key imprinting mechanism into a compact module, which we have constructed and demonstrated with an overlay and resolution of <0.5 microm and <10 nm, respectively. In the short term, this wafer bowing approach makes nanoimprint lithography much more accessible to a broad range of res...

Playing a violin requires precise patterns of limb coordination that are acquired over years of practice. In the present study, the authors investigated how motion at proximal arm joints influenced the precision of bow movements in novice learners and experts. The authors evaluated the performances of 11 children (4-12 years old), 3 beginning-to-advanced level adult players, and 2 adult concert...

In this work we designed and tested an in-vivo measurement system of prosthetic knee joint angles. The system included a small permanent magnet in the femoral part and three magneto resistance sensors placed in the polyethylene part. The sensor configuration was defined based on sensitivity analysis, signal to noise ratio, saturation of sensors and movements constraints. A mapping algorithm was...

In vitro mechanical studies have demonstrated equal or superior fixation of pediatric femoral fractures with use of titanium elastic nails (TENS) as compared with stainless steel elastic nails (SSEN). SSEN are less expensive as compared to TENS. However, there are only two studies in the English literature which have compared the results of TENS and SSEN in paediatric femoral shaft fracture. Th...

INTRODUCTION Subtrochanteric femur fractures remain challenging injuries to treat. Historically, varus malreduction has been linked to the development of nonunion; however, there is a paucity of literature evaluating the impact of sagittal plane malreduction. The purpose of this study was to evaluate the influence of coronal and sagittal plane malreductions on time to union of subtrochanteric f...

OBJECTIVES Normal sagittal spine-pelvis-lower extremity alignment is crucial in humans for maintaining an ergonomic upright standing posture, and pathogenesis in any segment leads to poor balance. The present study aimed to investigate how this sagittal alignment can be affected by severe knee osteoarthritis (KOA), and whether associated changes corresponded with symptoms of lower back pain (LB...

We describe MusicJacket, a wearable system to support the teaching of good posture and bowing technique to novice violin players. The system uses an inertial motion capture system to track, in real-time: i) whether the player is holding the violin correctly; and ii) the player’s bowing action and whether it deviates from a target trajectory. We provide the musicians with vibrotactile feedback a...

An 8-year-old girl was referred to our department because of generalized bowing of long bones (radii, ulnae, and femora) and significant bilateral and symmetrical posteromedial bowing of the tibiae and fibulae. The femora were laterally bowed whereas the tibiae and fibulae showed posteromedial bowing between the middle and distal thirds of the tibia with posterior cortical thickening effectivel...

This paper presents the results of two recent pilot experiments conducted to investigate the performance of a realtime physical violin model using bowing parameters generated by a real player. In each of these two experiments, the calibrated bowing parameters of bow force, bow speed, and bow position (bow-bridge distance) are mapped to the calibrated inputs of the physical model in order to exa...

It is known fact that proximal and distal fractures of tibia tend to angulate into varus when treated with intramedullary nails or functional braces. Proximal fractures of tibia tend to angulate into anterior bowing when fixed with nail when fibula is intact. Intramedullary nailing for metaphyseal tibial fractures with short proximal and distal fragment is associated with frontal and sagittal p...