There is no consistent definition for social presence within research literature yet.
This conjecture has not been supported in the research literature.
The index is good but the references do not provide easy access to the research literature.
There are differing views on this issue, which is under discussion in the research literature as of early 2007.
"There's really very little to substantiate her claims in research literature."
They said the research literature behind many common assertions about television's impact on children was sparse.
There are still other definitions in the research literature.
The term is now also used in clinical and research literature.
It is therefore necessary to subject the research literature to careful quality control procedures.
Efforts have been made, however, to include a balanced treatment of such issues in reviewing and interpreting the research literature for practice.