| http://www.w3.org/ns/prov#value | - In some embodiments, at a particular time, or at a particular point in a body lumen or in response to for example a signal, environmental condition and/or parameter that may be sensed by one or more sensors or the passage of time, light part 12 may separate or detach from heavy part 30 and light part 12 may assume a buoyant or floating configuration.
|
