Stem cells are the body's raw materials â cells from which all other cells with specialized functions are generated. Under the right conditions in the body or a laboratory, stem cells divide to form more cells called daughter cells. These daughter cells either become new stem cells (self-renewal) or become specialized cells (differentiation) with a more specific function, such as blood cells, brain cells, heart muscle or bone. No other cell in the body has the natural ability to generate new cell types.
(December 2011) (Learn how and when to remove this template message) The hangman's knot or hangman's noose (also known as a collar during the Elizabethan era) is a well-known knot most often associated with its use in hanging a person.
If you are using sisal i learned a pretty nice knot a JD hay school. Not sure if it's in the book or I can explain it good but here goes. Start off just like you would the square knot by twisting the strings together once. Then roll the ends of the strings in your fingers to seperate the strands about an inch up.