To prevent measles, children (and some adults) should be vaccinated with the measles, mumps, and rubella (MMR) vaccine. Two doses of this vaccine are needed for complete protection.Children should be given the first dose of MMR vaccine at 12 to 15 months of age.The second dose can be given 4 weeks later, but is usually given before the start of kindergarten at 4 to 6 years of age.o prevent measles, children (and some adults) should be vaccinated with the measles, mumps, and rubella (MMR) vaccine. Two doses of this vaccine are needed for complete protection.
GPS (Global Positioning System) Satellites orbit the earth and transmit signals. GPS receivers take the signal information and use it to calculate the userâs exact geographic location. Most mobile phones and smartphones have GPS receivers. Camcorders and digital cameras also use them for GPS tagging.resent to your audience. 1  Invited audience members will follow you as you navigate and present. 2  People invited to a presentation do not need a Prezi account. 3  This link expires 10 minutes after you close the presentation.
GPS Receivers. Any navigation solution provided by a GNSS Receiver is based on the computation of its distance to a set of satellites, by means of extracting the propagation time of the incoming signals traveling through space at the speed of light, according to the satellite and receiver local clocks.he initial purpose of the GPS system was military but with the free availability of GPS signals and the availability of cheap GNSS receivers, the GPS technology is having a pervasive use in civil, industrial, scientific areas.