| Acronym | Meaning |
| PMF | Positive Matrix Factorization |
| NDWBA | Normalized Distorted-wave Born Approximation |
| SCCSA | Self-consistent Central-site Approxn. (for D.-of-states) |
| ROMP | Restricted Open-shell Moeller-Plesse |
| WCOT | Wall Coated Open Tubular Columns |
| INDC | International Nuclear Data Committee |
| EDRS | Enforcement Document Retrieval System |
| PNDO | Partial Neglect Of Differential Overlap |
| BEIR | Advisors Committee On The Biological Effects Of Ionizing Radiation |
| DTMR | Diffusion Tensor Magnetic Resonance |