Increasing evidence has accumulated over the last few years on the involvement of free radical reactions in the genesis of the liver cell damage which characterizes several pathological conditions. Such conditions can be classified as ( I ) toxic liver damage, (2) iron overload, (3) dietary deficiencies or imbalances. In the first case the active free radicals are generated during the metabolic...

Absorption of UV-B by DNA induces the formation of covalent bonds between adjacent pyrimidines. In maize and arabidopsis, plants deficient in chromatin remodeling show increased DNA damage compared to WT plants after a UV-B treatment. However, the role of enzymes that participate in DNA methylation in DNA repair after UV-B damage was not previously investigated. In this work, we analyzed how ch...

Fatigue analysis of hybrid wind turbine towers between cut in speed and out are demonstrated. Nominal stress method miner liner accumulated damage theory adopted. Through the results, comparative research on effect parameters aspect ratio, height ratio unequal legs for fatigue properties towers. The results show that optimal range is 1/6~1/4, 0.60~0.67. towers, should select right junction leew...

Abstract Modern wind turbines have higher rated power and improved capacity factors. This results in very long slender blades which are also designed closer to the material limits. As a consequence, blade test facilities need be upgraded for static fatigue full-scale testing carry larger loads deal with tip deflections. Another aspect is adaption of methods avoid high overloads, can cause prema...