Whats the average life span of a Ipod Shuffle 2nd generation? what I mean is how long should the battery last and charge for before it compleatly dies. HP Pavilion a510n 2.10ghz athlon 3000+, Windows XP, Ipod Shuffle 2nd generation Blue.
Graves disease is the most common cause of hyperthyroidism. Graves disease is an autoimmune disorder in which antibodies are produced that bind to the TSH receptor.s diagrammed in the figure, when there is less T3 and T4, there is reduced negative feedback inhibition of secretion of the tropic hormones, TRH (thyrotropin releasing hormone; released by the hypothalamus) and TSH (thyroid stimulating hormone or thyrotropin; released by the anterior pituitary).
Mathematically, positive feedback is defined as a positive loop gain around a closed loop of cause and effect. That is, positive feedback is in phase with the input, in the sense that it adds to make the input larger. Positive feedback tends to cause system instability.