Conductive Layers on a Shrinkable PET Film by Flexographic Printing.

In this study, the extremely important and difficult topic of flexographic printing on a heat-shrinkable substrate was taken up. Six commercially available, electrically conductive inks based on silver, copper and graphite nanoparticles were selected and tested upon their applicability for printing on the temperature-sensitive PET material. As a printing substrate, the one-direction heat-shrinkable PET film, with a maximum shrinkage of 78%, was selected. All of the examined inks were subjected to the printing process throughout three different anilox line screens. The tested inks, along with the electric paths printed with them, were subjected to various tests. The main parameters were evaluated, such as printability combined with the rheology tests and ink adhesion to the examined PET substrate together with the electrical conductivity before and after the shrinkage.

[Tobacco smoking, alcohol consumption and physical activity among patients with Type 2 diabetes]. / Palenie tytoniu, alkohol i aktywnosc fizyczna wsród pacjentów z cukrzyca typu 2.

The present article is focused on tobacco smoking, alcohol consumption, and necessary physical activity, and how they contribute to everyday life of diabetic patients. The article is based on a study comprising 106 such patients, treated in two leading centres of diabetological care in the City of Poznan. Fifty eight male and 48 female patients were examined. Eighty nine per cent of the studied group were convinced of the negative effect of tobacco smoking on human health, 9% - had no opinion in this matter while 2% - expressed rather astonishing, in the study's context, view on the supposedly beneficial influence of smoking on health. Forty three patients in the studied group never smoked, 47 - gave up the habit while 16 - still smoked. Analysis of the respondents' knowledge on the glycaemic effect of alcohol proved interesting. Only 54 persons knew that alcohol consumption considerably diminished level of glucose in the blood, occasionally leading to severe hypoglycaemia whereas 27 had no opinion on the matter, and 16 thought that alcohol actually increased the level of glucose in the blood. Three respondents did not think alcohol influenced a diabetic's body in any way. Thirty four per cent declared abstinence. Physical activity, in the view of 90% of the subjects, beneficially influenced the health of a diabetic patient, 5% - did not form an opinion about it, and another 5% suggested an unquestionably negative effect of physical effort on health. Daily physical activity, continued for at least 30 minutes, declared 53% of the examined group, 3 times a week - 13%, and 5 times a week- 8%. The remaining subjects exercised even less frequently or at all.