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...physical phenomena into electrical signals that communicate useful information. Such devices have capabilities similar to the five human senses: hearing (microphones), seeing (cameras), touch (piezoelectrics), and smell and taste (chemical sensors), although sometimes our human senses are better. However, electronic devices can sense things we cannot. For example, Figure...

...Physical Taking risks; business and trading Commercial Words: 0 (Adapted from Career planning and job-seeking workbook, p. 30, Open University Careers Service.) Make a note of which were the most important values for you. Did any of them surprise you? You may want to come back to these when you start to develop your action plan towards the end of the course...Week 1: The...

...physical therapies that support the rehabilitation of children with paralytic polio are at the tertiary level of prevention, i.e. they can reduce the impact of paralysis on the child’s quality of life, but they have no impact whatsoever on the spread of polio virus in a community. However, tertiary strategies contribute to public health in a more subtle way. By...

...physical symptoms. Despite this, ducks may remain infected for 2–4 weeks and during this time they shed virus in their faeces. Potentially this is a very important reservoir of infection; although flu viruses do not often cross the species barrier, the pool of viruses present in other species is an important genetic reservoir for the generation of new flu viruses that...