In situ characterization of the work function of quasi one dimensional nanomaterials is essential for exploring their applications. Here we proposed to use the electrostatic deflection induced by work function difference between nanoprobe and nanowire for in situ measuring the local work function along a free standing nanowire. The physical mechanism for the measurement was discussed in details...

recognizing patients at a higher risk of developing chronic low back pain (lbp) is important in industrial medicine. this study aimed to assess the power and quality of general health questionnaire (ghq) for prediction of the odds of chronicity of acute lbp. this study was conducted on industrial workers. all subjects with acute lbp who met the inclusion criteria were enrolled. demographic char...

BACKGROUND Epidemiological research has established sitting as a new risk factor for the development of non-communicable chronic disease. Sit-stand desks have been proposed as one strategy to reduce occupational sedentary time. This formative research study evaluated the acceptability and usability of manually and electrically operated sit-stand desks in a medium-sized government organisation l...

Extended periods of uninterrupted sedentary behavior are detrimental to long-term health. While prolonged sitting is prevalent among information workers, it is difficult for them to break prolonged sedentary behavior due to the nature of their work. This work aims to understand information workers’ intentions & practices around standing or moving breaks. We developed Time for Break, a break pro...

Acoustic standing wave technology combined with microtechnology opens up new areas for the development of advanced particle and cell separating microfluidic systems. This tutorial review outlines the fundamental work performed on continuous flow acoustic standing wave separation of particles in macro scale systems. The transition to the microchip format is further surveyed, where both fabricati...

This work is carried out to determine the empirical boundary conditions of concentration/separation of yeast cells, red blood cells of rats and guinea pigs in standing ultrasonic wave, based on the performed theoretical calculations. The results indicated that increase flow rate of the medium above the theoretically calculated values of cell retention in a standing ultrasonic wave causes them t...