background: needle-stick and sharps injuries carry the risk of infection and are occupational hazards for all health care professionals involved in clinical care. objective: to determine the frequency and factors contributing to needle-stick injury (nsi) among health care workers of dialysis units in lagos, nigeria. methods: data were obtained by anonymous, self-reporting questionnaire from sta...

OBJECTIVES Aluminum step wedge (ASW) equivalent radiodensity (eRD) has been used to quantify restorative material's radiodensity. The aim of this study was to evaluate the effects of image acquisition control (IAC) of a digital X-ray system on the radiodensity quantification under different exposure time settings. MATERIALS AND METHODS Three 1-mm thick restorative material samples with variou...

In this research, an automatic control system is designed for landing of a small helicopter on a 4 DOF moving platform. The platform has three translational and one directional degree of freedom. The controller design approach is based on development of helicopter nonlinear dynamic model into the SDC (State Dependent Coefficient) form and real time solving of state dependent Riccati equation (S...

Most of the current Machine Translation systems are designed to translate a document sentence by sentence ignoring discourse information and producing incoherencies in the final translations. In this paper we present some documentlevel-oriented post-processes to improve translations’ coherence and consistency. Incoherences are detected and new partial translations are proposed. The work focuses...

Stabilisation of neutral systems with saturating control inputs J.M. Gomes da Silva Jr a , A. Seuret b , E. Fridman c & J.P. Richard d a Department of Electrical Engineering, UFRGS, Av. Osvaldo Aranha 103, 90035-190 Porto Alegre-RS, Brazil b Department of Automatic Control, GIPSA-Lab CNRS UMR 5216, INRIA NECS project Team, Grenoble, France c Department of Electrical Engineering-Systems, Tel-Avi...

Institut de Robòtica i Informàtica Industrial (CSIC-UPC), Technical University of Catalonia (UPC) Llorens i Artigas, 4-6, 2nd floor, 08028, Barcelona, Spain E3S (SUPELEC Systems Sciences), Automatic Control Department, Gif sur Yvette, France Department of Automatic Control and Systems Engineering, Faculty of Automatic Control and Computers “Politehnica” University of Bucharest, 313 Spl. Indepen...