There are multiple definitions:

1. nonnegative matrix factorization(English)

   • PPM1K, RXRG, SGLT2, SLC25A44, SLC2A1, TCA, DOF, EMG, ICA, PCA, WGCNA, ACSL1, -3, -5, BCAA, BCAT2, BCKDHB, BCKDK, BMI, CD36, CPT1A, DBT, FA, FABP, HF, HFpEF, LPL, MLAC, MPC1/MPC2, mTOR, NT-proBNP, PLIN2, PPAR, PPARA, PPARG, PPARGC1A
   • Statistics
   • https://doi.org…NAHA.120.050498
   • https://doi.org…NAHA.122.061846

2. natural moisturizing factor(English)

   • EDC

3. neutral mastic fraction(English)

   • its main compound concerns triterpenes, which possess phytosterol-like structures, and potentially anti-ischemic and antiatheromatic activity
   • TMEWP
   • Cardiology, Therapeutic approaches, Preventive medicine
   • https://doi.org…med.2016.06.002