Their variability in consistency and hardness makes them unpredictable, thus we cannot know in advance which patient is an appropriate candidate for surgery.
The variability in pH, alkalinity and hardness is quite small among the lakes but they differ widely in DOC (0.9 17 mg/L), Fe (2 393 µg/L) and Al (1.5 57 µg/L) concentrations.
However, levels of calcium and magnesium reported for the Rio Grande aquifer (which served our study population in the San Luis Valley) indicate higher levels of hardness, with low variability in the San Luis Valley (Robson and Banta 1995).
The body is usually a dark red and approaches stoneware in hardness.
The ingredients did not interfere in hardness.
This numbering system is not standardized reeds with the same hardness number often vary in hardness across manufacturers and models.
An increasing carbon content causes a significant increase in hardness.
There was no significant difference in hardness between the remineralization groups regardless of oligopeptide use.
Different clay brands vary in hardness.
Enamel hardness was not related to the variability in organic content, but was associated with the size of apatite crystals along the c-axis.
