There are multiple definitions:

1. nuclear localization sequence / signal(English)

   • motif harbored by transposases, and indispensable for transposase transport through the nuclear membrane
   • LacZ, TMD, DNA, HTH, LTR, MITE, RAG, RNA, TE, TIR
   • Genomics
   • https://doi.org…920210790886871
   • https://doi.org/10.1038/nrm2277

2. nonlinear least squares(English)

   • Statistics, Nonlinear analysis/system

3. newborn / neonatal life support(English)

   • course aims to provide detailed knowledge and practical instruction in the resuscitation of babies at and immediately after birth
   • ALS, BLS, ILCOR, PLS, ERC
   • Emergency medicine, Neonatal situation, Education
   • https://www.erc…rn-life-support