Sentences with phrase «extremely valuable material»
Type specimens are «extremely valuable material when one is studying species relationships and species definitions,» notes Anita Cholewa, vascular plant curator at the University of Minnesota Herbarium.
http://www.sciencemag.org/ Not exact matches
These databases are extremely useful and valuable, but there does not appear to be a ton of oversight or quality - control over the available materials, and it would certainly behoove teachers using them to think as critically about the assignments they're downloading as they would about the assignments they're writing themselves.
Hydrogen (H2) is an extremely simple molecule and yet a valuable raw material which as a result of the development of sophisticated catalysts is becoming more and more important.
While the materials from the CFI subjects are extremely valuable and our results are statistically significant, greater numbers of subjects must be analyzed to determine whether the correlations we detected continue to hold up when more patients are studied, and whether such correlations exist within people carrying other haplogroups.