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.
The basic knot for terminating stringing material. This knot lets you end your piece for use with a bead tip. You can also use this knot to connect threads going in the same direction. For example, this is how you tie the threads together when starting a kumihimo piece. How: Make a loop with the thread or group of threads, and pass the end through the loop.