Sentence examples for topic has been done from inspiring English sources

Much less research exists on bullying at work, as compared with that in schools, and some of the most developed research on this topic has been done in Scandinavia, based on studies by Ståle Einarsen, Heinz Leymann, and others.

Good research on the topic has been done, and some interesting evidence is in.

Research on this topic has been done since the early 1950s, but manufacturing and modelling difficulties have prevented its commercial application so far.

Much research on this topic has been done on compartmental models of infectious diseases such as influenza, malaria, dengue, cholera, etc. [21 25].

Later, more studies concerning a specific topic have been done, such as family affluence [ 24], diet [ 25], overweight and obesity [ 26], physical activity [ 27- 29], symptoms [ 30], reasons for exercise [ 31], sleep [ 32] and school environment [ 33].

Most of the systematized scientific activity on hormesis, organized to rationalize and characterize the topic per se, has been done by the University of Massachusetts-Amherst (UMass-Amherst) hormesis program led by Edward J. Calabrese.

In other words, what research has been done on this topic, and what does it show?

Little work has been done on this topic since.

Some work has been done on this topic.

Presently, some initial work has been done on this topic [44 53].

Since then, a lot of work has been done on this topic.