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

2 Subjects: “...participatory action research...”

3 Subjects: “...participatory action research...”

4 Subjects: “...action research...”

5 Subjects: “...action theory...”

6 Subjects: “...ocean action...”

7 Subjects: “...action observation...”

8 Subjects: “...action observation...”

9 Subjects: “...collective action...”

10 Subjects: “...collective actions...”

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

12 Subjects: “...action research arm test...”

13 Subjects: “...model actionability...”

14 Subjects: “...mechanisms of action...”