Thermodynamics of continua, nonlocality residual, gradient-dependent plasticity, hardening/softening diffusion, nonlocal-form maximum intrinsic dissipation theorem, constitutive boundary conditions, material isotropic hardening/softening state, nonlocal variable, Small-strain, rate-independent theories of plasticity (including rigid-plastic and elasto-plastic materials), gradient plasticity, regularization operator, nonlocal Clausius-Duhem inequality, bar in uniaxial tension, Thermodynamics in solid mechanics