A method of forming abrasion resistant nonwoven fabrics by hydroentanglement includes providing a precursor web. Endothelial cells line the vascular epithelium and underlying vasa vasorum precluding distinction between cellular controls. The compounds may be used for treating infections of fungi in humans and animals, or to prevent or inhibit the growth of fungi on any surface. The first DLTC generates a first timestamp indicative of a time between an edge of a reference input signal to the TDC and an edge of the first signal. A business process for billing customers for the transfer or usage of solidified software is also disclosed.