There are multiple definitions:

1. appendicular lean mass(English)

   • left ventricular assist device recipients gain weight after device implantation, although it is unknown whether this represents skeletal muscle mass gains
   • LVAD
   • Cardiology, Myocyte / muscle
   • https://doi.org…LURE.121.009012

2. augmented Lagrangian method(English)

   • a classical optimization tool that solves a given “difficult” (constrained) problem via finding solutions of a sequence of “easier” (often unconstrained) subproblems with respect to the original (primal) variable, wherein constraints satisfaction is controlled via the so-called dual variables. ALM is highly flexible with respect to how primal subproblems can be solved, giving rise to a plethora of different primal-dual methods
   • ADAL, ADMM, AHU, PDMM
   • Signal analysis
   • https://doi.org…OC.2020.3007395

3. acral lentiginous melanoma(English)

   • represents 4-10% of cutaneous melanomas in white populations, and seem to have a poor prognosis
   • Dermatology, Oncology
   • https://doi.org…33.2008.08954.x