Acceptance Rate By Year. 1  2009-2010: 27.8%. 2  2010-2011: 22.3%. 3  2011-2012: 19.4%. 4  2012-2013: 18.4%. 5  2013-2014: 18.1%. 6  Projected JHU Acceptance Rate 2017-2018: 19.6%.
Allostasis is the process of achieving stability, or homeostasis, through physiological or behavioral change. This can be carried out by means of alteration in HPA axis hormones, the autonomic nervous system, cytokines, or a number of other systems, and is generally adaptive in the short term (McEwen & Wingfield 2003).
According to the 'Oxford Colour Medical Dictionary, Third Edition'. homeostasis is the the physiological process by which the internal. systems of the body (e.g. blood pressure, body temperature, acid-base. balance) are maintained at equilibrium, despite variations in the. external conditions. Homeostasis is the maintenance of a stable internal environment within. tolerance limits, this is the restricted range of conditions where. cellular operations effectively work at a consistent rate and maintain. life. These conditions include temperature, blood glucose levels, pupil. diameter control and many more.