After estimating an initial level of initial concentration of beryllium - 10 in their lake samples, the researchers were able to estimate the age of the sediments to be between 14 and 17.5 million years ago. (sciencedaily.com)
High sugar levels actually retard the growth of yeast; Initial concentrations above 25 % are problems. (resetyourweightbasics.com)
Following Poitras's initial concentration on etchings reflecting her scientific background, the confidence and self - insight derived from her experience at Columbia U transformed her work. (thecanadianencyclopedia.ca)