Chuck Springer

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Recently, James Bowie addressed the question of how to normalize correctly the distribution of observed helix-helix packing angles in proteins (Bowie, Nature Struct. Biol. 4:915-917, 1997). A hitherto unrealized yet significant bias toward crossed packing angles was revealed. However, the derived random reference distribution of packing angles requires that(More)
The present research used a startle amplitude reduction paradigm to investigate the ability of the rat's auditory system to track rapidly changing acoustic transients. Specifically examined was the ability of brief gaps in otherwise continuous noise to reduce the amplitude of a subsequently elicited acoustic startle reflex. The duration of the gap, time(More)
  • S Patsourakos, A Vourlidas, Y M Wang, G Stenborg, A Thernisien, C Springer
  • 2009
One of the major discoveries of the Extreme ultraviolet Imaging Telescope (EIT) on SOHO were intensity enhancements propagating over a large fraction of the solar surface. The physical origin(s) of the so-called 'EIT' waves is still strongly debated. They are considered to be either wave (primarily fast-mode MHD waves) or non-wave (pseudo-wave)(More)
We have used the daily values of the equatorial rotation rate determined from the Mt. Wilson daily Doppler velocity measurements during the period 3 December 1985 – 5 March 2007 to search for periodicities in the solar equatorial rotation rate on timescales shorter than 11 years. After the daily values have been binned into 61-day intervals, a cosine fit(More)
Gravity modes are the best probes to infer the properties of the solar radiative zone that represents 98% of the Sun's total mass. It is usually assumed that high-frequency g modes give information about the structure of the solar interior whereas low-frequency g modes are more sensitive to the solar dynamics (the internal rotation). In this work, we(More)
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