Boltzmann optical thermometry for cryogenics.

We propose and implement an optical technique to access the local temperature of an erbium doped crystal by probing the electron spin population under magnetic field. We reliably extract the sample temperature in the range 2-7 K. We additionally discuss the suitability of our method as a primary standard for cryogenic thermometry.

Application of physiotherapy in persons at risk of metabolic syndrome development.

Problems the locomotor activity and nutritional provisions in the treatment of obesity or metabolic syndrome are currently widely discussed. Based on prevailing experience, the attention in the field of locomotor and fitness activities is rather general, i.e.