The availability of radioactive isotopes of iron led to the development of reliable methods of studying iron kinetics (1), but the absorption of iron by the gastrointestinal tract was still determined indirectly by the amount of unabsorbed iron excreted in the stools or by quantification of isotopic iron incorporated into hemoglobin (2-7). The availability of a whole-body counter in a clinical ...

Estimating evapotranspiration (ET) is a primary challenge in modern hydrology. Hydrogravimetry an integrative approach providing highly precise continuous measurement of gravity acceleration. However, large-scale effects (e.g., tides, polar motion, atmospheric loading) limit the fine time-scale interpretation data and processing leads to residual signal noise. To circumvent this limitation, we ...