Erik Dahl

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Why are scientific collaborations so difficult to sustain? Inspired by the vision of Wil-liam Wulf (1989, 1993) and others, researchers over the last twenty-five years have made a number of large-scale attempts to build computer-supported scientific collaboration environments, often called collaboratories (National Research Council 1993). Yet only a few of(More)
BACKGROUND The inflammatory cytokine tumor necrosis factor-alpha has been shown to play a pivotal role in the development and maintenance of a wide variety of neuropathic pain conditions. Not surprisingly, systemic treatment with drugs that block tumor necrosis factor have been demonstrated to alleviate pain and pain-related behaviors in clinical and(More)
BACKGROUND In recent years, convincing evidence has emerged implicating tumor necrosis factor alpha as a causative factor in radiculopathy and discogenic back pain. But although preliminary open-label studies demonstrated promising results for the treatment of low back pain with tumor necrosis factor-alpha inhibitors, early optimism has been tainted by a(More)
A 20-yr-old active duty soldier complained of right lateral forearm numbness that began shortly after carrying 100 lbs of equipment (20-lb load-bearing equipment, 20-lb individual body armor, and 60-lb rucksack) while deployed during Operation Iraqi Freedom. Physical examination revealed normal strength but decreased sensation over the right lateral(More)
Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instruction, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this(More)
Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instruction, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this(More)
Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instruction, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this(More)
Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instruction, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this(More)