113597 df degrees of freedom 402 114112 DF dominant frequency 300 113581 Df fractal dimension 153 114309 DF dermal fibroblasts 64 113614 dF dexfenfluramine 57 114413 DF developed force 30 114591 d.f degree-of-freedom 8 114599 dF 2,4-difluoro-5-methylbenzene 2 114594 dF difference frequency 2 114174 dF digestible fiber 2 114601 dF 2,4-difluorotoluene 1 114602 dF 2,4-difluorotoluene nucleobase 1 114600 dF 2-deoxyribosylformamide residue 1 114597 dF delayed emitter fluorescence 1 114598 dF deoxyFuran 1 114593 dF distinct patterns in fractal dimension 1 114595 dF F'(I+DeltaI(t)) approximately Fmean 1 114596 dF N-(2-deoxy-beta-D-erythro-pentofuranosyl)formylamine 1