1 Subjects: “...density functional theory...”

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

3 Subjects: “... Organizational theory and behaviour...”

4 Subjects: “...contingency theory...”

5 Subjects: “...theory of planned behavior...”

6 Subjects: “...trauma theory...”

7 Subjects: “...partitioning theory...”

8 Subjects: “...queueing theory...”

9 Subjects: “...perturbation theory...”

10 Subjects: “...grounded theory...”

11 Subjects: “...grounded theory...”

12 Subjects: “...evidence theory...”

13 Subjects: “...protection motivation theory...”

14 Subjects: “...adaptive control theory...”

15 Subjects: “...evolutionary game theory...”

16 Subjects: “...evolutionary game theory...”