OBJECTIVE To assess the impact of Stepping Stones, a HIV prevention programme, on incidence of HIV and herpes simplex type 2 (HSV-2) and sexual behaviour. DESIGN Cluster randomised controlled trial. SETTING 70 villages (clusters) in the Eastern Cape province of South Africa. PARTICIPANTS 1360 men and 1416 women aged 15-26 years, who were mostly attending schools. INTERVENTION Stepping S...

Electoral coordination refers to the use by political parties of a concerted strategy that makes most effective use of electoral rules to maximize their interests in legislative elections. Coordination requires both strategic thinking and political discipline, however, and in relatively new democracies these conditions may not exist. In this study I examine electoral coordination in the Hungari...

OBJECTIVES To compare the effect of two 10-week balance training programs, Combined Balance and Step Training (CBST) versus tai chi (TC), on balance and stepping measures. DESIGN Prospective intervention trial. SETTING Local senior centers and congregate housing facilities. PARTICIPANTS Aged 65 and older with at least mild impairment in the ability to perform unipedal stance and tandem wa...

Resolvers are widely used in electric driven systems especially in high precision servomechanisms. Both encapsulated and pancake resolvers suffer from a major drawback: static eccentricity (SE). This drawback causes a significant increase in resolver output position error (RPE) which could not be corrected electronically. To reduce RPE, this paper proposes a novel structure with axial flux. Pr...

This paper presents a numerical method for aerodynamic shape optimization problems in compressible viscous flow. It is based on simultaneous pseudo-time stepping in which stationary states are obtained by solving the pseudo-stationary system of equations representing the state, costate and design equations. The main advantages of this method are that it blends in nicely with previously existing...

This paper presents a system of identifying individuals by their gait patterns. We take into account various distinguishable features that can be extracted from a user's gait and then divide them into two classes: walking pattern and stepping pattern. The conditions we assume are that our target environments are domestic areas, the number of users is smaller than 10, and all users ambulate with...

The molecular motor dynein is associated with various cellular activities, such as directed transport along microtubules and the rhythmic beating of the axoneme. Because of the size and complexity of the protein, a detailed understanding of the mechanochemistry that drives dynein's processive motion is lacking. To overcome this deficiency, we developed the first (to our knowledge) computational...

This paper studies the tracking control problem of hypersonic vehicle in process external disturbance, parameters uncertainties and actuator faults. Firstly, a non-triangular velocity altitude nonlinear subsystem with mismatched disturbances faults are established based on feedback linearization model. Secondly, adaptive dynamic surface fault-tolerant controllers designed for subsystems by comb...