Y'All Want a Single Y'All Want a Single "Y'All Want a Single" is a song written and recorded by American nu metal band Korn for their sixth studio album, "Take a Look in the Mirror". It was released as the album's third single in March 2004, chosen by fans through a poll on the band's official forum. At a running time of three minutes and seventeen seconds, the song contains 89 uses of the word "fuck" with the repeated line "Y'all want a single, say fuck that - fuck that fuck that", although the radio edit replaces the word "fuck" with "suck". "Y'All Want
Single-use bioreactor validation procedures can be made easier, and will finally lead to significant cost reductions. The application of single-use bioreactors reduces the risk of cross contamination and enhances the biological and process safety. Single-use applications are especially suitable for any kind of biopharmaceutical product. Single-use bioreactors contain fewer parts compared with conventional bioreactors, so the initial and maintenance costs are reduced. Limiting factor for the use of "some" single-use bioreactors is the achievable oxygen transfer, represented by the specific mass transfer coefficient (k) for the specific phase area (a), resulting in the volumetric oxygen mass transfer coefficient (ka). Theoretically this can