1 In the All or part of the file name box, type officeav.dll. 2  In the Look in box, click Local Hard Drives. 3  Click Search. When the search result is displayed in the right pane, note the path of the Officeav.dll file.  Locate the Officeav.dll file, right-click officeav.dll, and then click Rename.
The hair shaft made of a protein called keratin is tough and resistant to wear and tear. Eighteen amino acids make up the keratin of which the most abundant is the cysteine. It gives the hair much of its strength. The middle layer of the hair is the cortex. It is made up of polypeptide chains that are cross-linked with each other, by three different types of side bonds.
What is L-cysteine, or How Did Duck Feathers Get in My Bread??? L-cysteine (sometimes shown as E920 on food labels) is a food additive often derived from duck feathers or human hair. It is used as a dough conditioner and strengthener, meaning the dough can be stretched out to make a pizza crust, for example. L-cysteine can also help extend the shelf life of commercial breads.