Robert Ackermann

Joeri Van Leeuwen1
Susanne Jorgensen1
1Joeri Van Leeuwen
1Susanne Jorgensen
1M Wright
1Alwina Bender
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Friction-induced moments and subsequent cup loosening can be the reason for total hip joint replacement failure. The aim of this study was to measure the in vivo contact forces and friction moments during walking. Instrumented hip implants with Al2O3 ceramic head and an XPE inlay were used. In vivo measurements were taken 3 months post operatively in 8(More)
  • M B E Smitht, Judith Jarvis Thomson, Hugo A Bedau, Gerald Barnes, Murray Kiteley, Robert Ackermann +1 other
  • 2004
It isn't a question of whether it was legal or illegal. That isn't enough. The question is, what is morally wrong.-Richard Nixon, "Checkers Speech" 1952. Many political philosophers have thought it obvious that there is a prima facie obligation to obey the law; and so, in discussing this obligation , they have thought their task to be more that of(More)
  • Jack Welch, Don Backer, Leo Blitz, Douglas C, J Bock, Geoffrey C Bower +85 others
  • 2009
Numerous small reflector antennas, with cost-effective electronics, feed information into this telescope, designed to search for extraterrestrial intelligence and produce images covering wide areas of the sky. ABSTRACT | The first 42 elements of the Allen Telescope Array (ATA-42) are beginning to deliver data at the Hat Creek Radio Observatory in northern(More)
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