Since 1999, Nissan has been part of the RenaultâNissan Alliance, a partnership between Nissan and French automaker Renault. As of 2013, Renault holds a 43.4% voting stake in Nissan, while Nissan holds a 15% non-voting stake in Renault. Carlos Ghosn serves as CEO of both companies.
Figure 1: Calcium homeostasis is a process controlled by chiefly by hormones vitamin D and PTH. Vitamin D enters circulation via synthesis in the skin or intestinal absorption and is subsequently converted to its active form, 1,25(OH) 2 D via separate hydroxylation processes in the liver and kidneys.
WALTER CANNON devised the term homeostasis in 1930 while referring to how the body maintains its temperature, among other key variables. Credit: American Psysiological Society. Homeostasis, from the Greek words for same and steady, refers to any process that living things use to actively maintain fairly stable conditions necessary for survival.