The O'Reilly Factor | The X Factor (UK) | Microphthalmia-associated transcription factor | The X Factor | Array data structure | Fear Factor | Max Factor | The X Factor (TV series) | B-cell activating factor | Epidermal growth factor receptor | Psi Factor: Chronicles of the Paranormal | Astro Boy: Omega Factor | The Structure of Scientific Revolutions | structure | twist transcription factor | Toutle River Sediment Retention Structure | The X Factor (U.S.) | The X Factor (UK TV series) | The X Factor (UK series 2) | The Omega Factor | The Butch Factor | The Adonis Factor | Structure relocation | Sp1 transcription factor | Rheumatoid factor | PSI Factor | O'Reilly Factor | Insulin-like growth factor 1 | hyperboloid structure | Factor Three |
For crystals, atomic form factors are used to calculate the structure factor for a given Bragg peak of a crystal.
Asen K. Kirov, a Ph.D. student from Sofia University, Bulgaria contributed to the server, working on programs dedicated to irreducible representations and extinction rules.