That approach has allowed them a level of mobility that leaves other robots in the dust.

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Living in a city can require a higher level of personal mobility, including the ability to get up and down steps.

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It also helps elevate mobility and productivity to another level while giving the business integrated mobile device management and robust IT controls when connected through Verizon Wireless' 4G LTE network.

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Reform would likely increase labor supply, remove unnecessary barriers to job mobility, and help to "level the playing field" between large and small businesses.

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But stiff minimum-wage laws and other regulations have been chopping off the bottom rungs of the ladder and U.S. unemployment seems stuck at a high level, so American mobility may also take a hit.

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"Many customers suggested they were unlikely to switch from VMware to Hyper-V at any price, since Hyper-V lacked virtual machine mobility as well as other higher-level features such as disaster recovery, " Rueppel wrote in an April 1 research note.

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The launch of DriveNow and ParkNow in San Francisco and other cities is part of our commitment to the development of new mobility offerings, which will reduce the level of pollutant emissions and traffic congestion and improve quality of life for residents.

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