igating 
the Structure of Paramagnetic Aggregates from Colloidal Emulsions 
(InSPACE) experiment in preparation for processing once the 
Microgravity Science Glovebox is repaired.  One of six sample 
containers was discovered to be cracked. However, an identical backup 
sample container was intact, so the science team expects to complete 
all its objectives for the experiment with minimal impact.

InSPACE is designed to obtain basic data on magnetorheological fluids 
- a new class of "smart materials" that can be used to improve or 
develop new brake systems, seat suspensions, robotics, clutches, 
airplane landing gear, and vibration damper systems. The Glovebox, 
which provides a sealed work volume for crews to work safely with 
experiments involving fumes, fluids or flames, lost power on Nov. 20, 
2002.  Repair parts will be launched next month aboard a Russian 
Progress resupply ship, which should restore the Glovebox to working 
order.

Also on Tuesday, the crew completed the 90-day checkout with the Gas
Analyzer System for Metabolic Analysis Physiology (GASMAP), used for
periodic assessment of crew aerobic capacity. It analyzes human 
metabolics, cardiac output, lung diffusing capacity, lung volume, 
pulmonary function and nitrogen washout.  Crewmembers activate the 
GASMAP hardware and perform a full functional health check every 90 
days.

On Wednesday, Bowersox conducted the third round of research with the
FOOT/Ground Reaction Forces During Space Flight (FOOT) experiment.  
FOOT is designed to characterize the stress on the bones and muscles 
in the lower extremities in microgravity.

Beginning today, the crew will conduct five days of research with the 
Renal Stone experiment.  The crew is taking potassium citrate pills or 
a placebo to study a possible preventative for kidney stones in space. 
The microgravity environment of the Station results in several changes 
in the human body, including changes in fluid metabolism and bone loss 
that increase the chance of kidney stone formation during an
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