A physical nonlinear dynamical model of a laser diode is considered. We propose a feed-forward control scheme based on differential flatness for the design of input-current modulations to compensate diode distortions. The goal is to transform without distortion a radio-frequency current modulation into a light modulation leaving the laser-diode and entering an optic fiber. We prove that standar...

The pioneering trials of antiretroviral pre-exposure prophylaxis for HIV prevention have yielded a potent new strategy for the reduction of HIV incidence in atrisk populations. However, pre-exposure prophylaxis is inherently a combination approach: the intervention eff ect will depend not only on drug effi cacy, but also on behaviours of users and providers. Before the fi rst trial fi ndings em...

OBJECTIVE To evaluate the effectiveness of mechanical patient lifts in reducing musculoskeletal symptoms, injuries, lost workday injuries, and workers' compensation costs in workers at a community hospital. DESIGN Pre-post intervention study. SETTING Three nursing units of a small community hospital. Patients or SUBJECTS Nursing personnel. INTERVENTIONS Mechanical patient lifts were mad...

The aim of this study was to investigate the psychosocial impact of a Compensation Tribunal in women with an iatrogenic hepatitis C virus (HCV) infection. Eighty-three women diagnosed with an iatrogenic HCV infection were recruited, 19 women were Pre-Tribunal and 64 women were post-Tribunal. Both standardised and disease specific psychological measures were used. A series of t-tests revealed no...

In this paper we present a comparative study in order to specify the influence of equalization enhanced phase noise (EEPN) for preand post-compensation of chromatic dispersion in high capacity and high constellation systems. This is – to our knowledge – the first detailed study in this area for pre-compensation systems. Our main results show that the local oscillator phase noise determines the ...

Reversible watermarking that not only protects the copyright but also preserve the original quality of the digital content have been intensively studied. In particular, the demand for reversible watermarking has increased. In this paper, we propose a reversible watermarking scheme based on interpolation-error shifting and error pre-compensation. The intensity of a pixel is interpolated from the...

Classic developmental theory suggests that aging is associated with using compensatory strategies to prolong independence. While compensatory strategies are typically considered positive adaptations, they also signify an early phase in the disablement process - commonly known as pre-clinical disability. To build a better understanding of psychological constructs related to these early signs of ...

The aim of this study was to investigate the psychosocial impact of a Compensation Tribunal in women with an iatrogenic hepatitis C virus (HCV) infection. Eighty-three women diagnosed with an iatrogenic HCV infection were recruited, 19 women were Pre-Tribunal and 64 women were post-Tribunal. Both standardised and disease specific psychological measures were used. A series of t-tests revealed no...

In this study, we propose a simple and effective approach to synthesize new motions from a given sequence of continuous motion capture data. First an index function, based on posture features of each motion frame, is introduced to segment the given motion capture data into indexed motion clips. Then based on the fact that motion coherence implies index coherence, a new motion with start frame f...