1 Subjects: “...legitimacy theory...”

2 Subjects: “...human health, human-nature connection theory...”

3 Subjects: “...Theory of Inventive Problem Solving...”

4 Subjects: “...game theory...”

5 Subjects: “...panarchy theory...”

6 Subjects: “...constructivism theory...”

7 Subjects: “...trauma theory...”

8 Subjects: “...reference group theory...”

9 Subjects: “...actor-network theory...”

10 Subjects: “...ecological niche theory...”

11 Subjects: “...equations of motion in gravitational theory...”

12 Subjects: “...grounded theory...”

13 Subjects: “...grounded theory...”