Despite numerous studies, the actual cause of the inflammatory bowel diseases remains elusive. It is likely, however, that these chronically recurring episodes of inflammation in the human bowel are related to a complex interaction between various environmental factors and a hereditary predisposition for these diseases.
Blend and Combination Fabrics. Blend and combination fabrics are often used to combine the desirable properties of two fibers, reduce cost, and enhance appearance. The fiber content labels do not differentiate between blends and combination yarns and fabrics. It is often assumed that they are blend fabrics.
Warp and weft in plain weaving. In weaving cloth, the warp is the set of lengthwise yarns that are held in tension on a frame or loom. The yarn that is inserted over-and-under the warp threads is called the weft, woof, or filler.Each individual warp thread in a fabric is called a warp end or end.Warp means that which is thrown across (Old English wearp, from weorpan, to throw, cf. German werfen, Dutch werpen).he yarn that is inserted over-and-under the warp threads is called the weft, woof, or filler. Each individual warp thread in a fabric is called a warp end or end.