Keywords: Hyperbolic heat conduction; Internal variables and mesoscopic theory; Least-action and heat conduction; Maxwell relations; Mean field theory of turbulence; Thermodynamically constrained averaging theory; Thermodynamics of gradient elasticity; Transcritical N2O refrigeration; Tsallis thermodynamics in 2D turbulence; Variational nonequilibrium thermodynamics; reaction-diffusion systems; supersonic gas ejector.