This represents a slight but definite change in sense: "not rarely" implies (the phrase deleted by Darwin) that the transparent cones are frequently or usually coated with pigment, while "in other cases" does not.
With about three months of bouldering under my belt, I'm seeing definite changes in my body: my shoulders and arms are slightly bigger and more defined.
The controls exerted by mechanical forces, recognized for over a century, have been formulated as Wolff's law: "Every change in the function of a bone is followed by certain definite changes in its internal architecture and its external conformation".
At Okinawa, C. ebraeus shows definite changes in diet during development: juvenile and subadult individuals (shell lengths <13 mm) prey solely on syllid polychaetes (Order Phyllodocida, Family Syllidae) and adults (shell lengths ≥13 mm) predominantly eat eunicid polychaetes [20].
Preliminary results indicate definite changes in the protein content of cells depending on fiber phagocytosis.
Meditation has been described as a training in awareness which over long periods of time produces definite changes in perception, attention, and cognition.
Typically, major diagnoses resulted in definite changes in patient management (treatment, diagnostic evaluation) or prognosis, whereas minor diagnoses had no substantial impact.
Although there is no consensus on the definite changes in posterior corneal surface after laser surgery for myopia, our data showed that there may not be a forward or backward shift of posterior paracentral corneal surface after femtosecond LASIK for hyperopia.
Presuming extension compatibility can be taken care of, Firefox 2.0 should be a subtle but definite change for the better.
It remains to be seen whether this is the case, but it's a definite change in strategy".
