The Effect of Selected Factors on the Strength of Stitches of Upholstery Faux Leather.

With their properties, upholstery covering materials significantly influence the quality of upholstered products. These materials form the surface layer of upholstered furniture; any damage to this material is immediately visible to the user. We consider the stitches connecting the covering fabrics to be one of the critical points of the upholstered surface, therefore they must have the required strength.

Newly identified DNA methyltransferases of Ixodes ricinus ticks.

DNA methylation at the fifth position of cytosine (5mC) and at the sixth position of adenine (6 mA) plays an important role in the regulation of the gene expression and, in eukaryotes, is essential for normal development. For Ixodes ricinus, the most common European arthropod vector of human and animal pathogens, the DNA methylation profile and the role of DNA methylation in tick development are still under discussion. Our goal was to analyze the status of I.

[Adrenocorticotropic and somatotropic functions of the pituitary gland in juvenile thyrotoxicosis].

The adrenocorticotropic (ACT) activity of the hypophysis (according to the blood 11-HCS level) was studied in 27 female patients suffering from thyrotoxicosis, aged from 16 to 24 years (19 with moderately severe and 8 with severe form) and in 7 healthy girls. The ST activity of the hypophysis was ascertained in 11 patients by the blood STH content before and after the insulin hypoglycemia. The metopyron test was also carried out in 6 patients.

[Glucocorticoid and androgenic functions of the adrenal cortex and the state of the sympathetic-adrenal system in thyrotoxicosis with primary organic disease of the central nervous system].

In patients with thyrotoxicosis combined with primary affection of the central nervous system (CNS)-encephalitis, diencephalitis-there was revealed, like in common thyrotoxicosis, an increased production by the adrenal cortex of hydrocortisone, its intensified transformation and inactivation, reduced production of 17-ketosteroid chiefly due to the fall of dehydroepiandrosterone content, an increased urinary excretion of adrenaline and a decreased-of noradrenaline. The use of functional test with the ACTH administration demonstrated organic affection of the CNS to sharply aggravate the weakening and even the exhaustion of the functional reserves of the glomerular and the reticular zones of the adrenal cortex developing during thyrotoxicosis, and also the reserve possibilities of the sympathico-adrenal system. Direction of the changes in the 24-hour excretion of 17-OCS and corticosteriods was the same in the majority of cases.