David Walker

Enhanced stress responsivity of tourette syndrome patients undergoing lumbar puncture

Phillip Chappell, Mark A. Riddle, George M. Anderson et al. · Biological Psychiatry · 1994 · 104 citations

Pain Syndrome, Behavioral Medicine, Enhanced Stress Responsivity +12

Videotape Tic Counts in the Assessment of Tourette's Syndrome: Stability, Reliability, and Validity

Phillip Chappell, Maureen McSwiggan-Hardin, Lawrence David Scahill et al. · Journal of the American Academy of Child & Adolescent Psychiatry · 1994 · 60 citations

Thirty Meter Telescope Site Testing V: Seeing and Isoplanatic Angle

Warren Skidmore, S. Els, Tony Travouillon et al. · Publications of the Astronomical Society of the Pacific · 2009 · 48 citations · Full text

Earth Observation, Engineering, Space Optic +16

Using All Sky Cameras to determine cloud statistics for the Thirty Meter Telescope candidate sites

Warren Skidmore, Matthias Schöck, E. A. Magnier et al. · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2008 · 24 citations

Earth Observation, Cloud Statistics, Sky Cameras +11

Four Years of Optical Turbulence Monitoring at the Cerro Tololo Inter-American Observatory (CTIO)

Matthias Schöck, E. Bustos, Juan Seguel et al. · Publications of the Astronomical Society of the Pacific · 2009 · 14 citations · Full text

Geophysics, Meteorology, Nocturnal Behavior +12