Significant impact factor and psycho-emotional stress in the etiology of dysfunction indicate the need of the routine approach in the treatment of patients with temporomandibular joint disorders to be changed. The aim of the study was to obtain data, documented test results as to the efficiency of progressive muscle relaxation in the treatment of pain caused by temporomandibular joint disorders, as a supplement to previous methods using occlusal splint and other physical therapies. The study included 100 patients of both sexes, aged from 20 to 35 years who were diagnosed with pain due to temporomandibular joint disorders accompanied with high muscle tension of musticatory muscles which were treatment by relaxation therapy. All patients underwent physical examination, specialized functional examination of the masticatory system in accordance with the Polish version of the study RDC/TMD (The Research Diagnostic Criteria of Temporomandibular Disorders, Axis I — physical assessment, Axis II — assessment of psychosocial status and pain — related disability) and assessment of psycho emotional factor and stress, based on the survey developed for their own purpose. The results of the research were obtained using specialized statistical package “R” i386 3.2.3. The results of examinations aft er relaxation therapy showed a signifi cant reduction in the intensity of myofascial pain in all patients. Progressive muscle relaxation can be successfully used as an supportive therapy treatment of patient with dysfunction.

Strained layer InGaAs/GaAs SCH SQW (Separate Confinement Heterostructure Single Quantum Well) lasers were

grown by Molecular Beam Epitaxy (MBE). Highly reliable CW (continuous wave) 980-nm, broad contact, pump lasers were

fabricated in stripe geometry using Schottky isolation and ridge waveguide construction. Threshold current densities of the

order of Jth ≈ 280 A/cm2 (for the resonator length L = 700 um) and differential efficiency η= 0.40 W/A (41%) from one

mirror were obtained. The record wall-plug efficiency for AR/HR coated devices was equal to 54%. Theoretical estimations

of above parameters, obtained by numerical modelling of devices were Jth ≈ 210 A/cm and η = 0.47 W/A from one mirror,

respectively. Degradation studies revealed that uncoated and AR/HR coated devices did not show any appreciable degradation

after 1500 hrs of CW operation at 35oC heat sink temperature at the constant optical power (50 mW) conditions.

Similarly to many towns in Galicia, Rzeszów has gained street planting at the turn of the 19th and 20th centuries. In the period after World War II, little attention was paid to them. It is only from the beginning of the first decade of the 21st century, that we have seen a clear breakthrough. “Modernized” forms of planting are returning to historical places, and new communication arteries are planted with numerous specimens of tree, perennial and seasonal plants, well selected in terms of habitat requirements.