11. In scale relativity, quantum mechanical effects appear as effects of fractal structures on the movement. 12. Due to the mechanical effect of fibres, mineral wool products may cause temporary skin itching. 13. The Pauli Exclusion Principle is a quantum-mechanical effect . 14. In addition to the cumulative magnitudes of these intermolecular forces, there are certain emergent mechanical effects . 15. The local mud treatments represent a traditional curative method which has thermal, chemical and mechanical effects . 16. Exchange coupling is a quantum mechanical effect that keeps the adjacent moments aligned with one another. 17. For fermions, such as electrons, this quantum mechanical effect manifests as an intrinsic repulsion towards overlapping orbitals. 18. At these scales, quantum mechanical effects are important which coined the term " quantum wires ". 19. "' Nanocrystal solar cells "'are solar cells based on a quantum mechanical effects to extract further performance. 20. A knowledge of this quantum mechanical effect enables one to obtain this law, including coefficients, via direct calculation.