1 Subjects: “...human action recognition...”

2 Subjects: “...action research...”

3 Subjects: “...combined action...”

4 Subjects: “...mode of action...”

5 Subjects: “...force action...”

6 Subjects: “...energy performance improved actions (EPIAs)...”

7 Subjects: “...cyclic actions...”

8 Subjects: “...waves action...”

9 Subjects: “...state-action chains...”