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

2 Subjects: “...scheduling theory...”

3 Subjects: “...axiomatic design theory (ADT)...”

4 Subjects: “...Z-number theory...”

5 Subjects: “...control theory...”

6 Subjects: “...information theory...”

7 Subjects: “...information gap decision theory (IGDT)...”

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

9 “... on historical analysis of data and have used deterministic models. The concepts of probability theory can also...”

10 “... in green manufacturing and logistics, including operations research, game theory, (meta)heuristics, machine...”

11 “..., open science, open education, and open innovation. The driving theory was that these types of open...”

12 “... Mathematics, which encompasses a wide range of topics connected with the theory and applications of PLS-SEM...”