This exact level of quality is difficult to quantitate, and will likely vary among expert reviewers.
The direct economic value of the research conducted by postdocs is difficult to quantitate.
Changes in cardiac function induced by early chemotherapy, however, are subtle and difficult to quantitate by conventional imaging methods.
We also employed immunofluorescence microscopy, but since it is difficult to quantitate fusion to small phagosomes in whole cells we only used this method qualitatively.
However, the AICD is difficult to quantitate by standard biochemical means owing to its small size and its remarkable instability [28].
Therefore, it is difficult to quantitate the CSPs in terms of K63-Ub2 struchange change.
The method is laborious, difficult to quantitate, and suffers from considerable intra- and inter-observer variation.
Fear of hypoglycemia and its effect on adherence to insulin therapy is based on assumptions that are difficult to quantitate.
Such a pattern has been demonstrated under ecological speciation in nature but is notoriously difficult to quantitate (for example [ 43- 46]).
The classical 51 Chromium – release cytotoxic T cell (CTL) assays are cumbersome and difficult to quantitate reproducibly.
