31. Shell is disc-shaped and involution is hiding 2 / 5 of previous whorl. 32. We and our fellow fauna have overcome this challenge through involution _ becoming more internally complex. 33. The sculptural involutions of the facades invited terraces; atria several stories high created piazzas inside. 34. In this case however the involution " a " * is not the pseudoinverse. 35. There is another class of involutions , of trace 0, that move all 100 vertices. 36. Let \ mathfrak { g } be a real semisimple Lie algebra with Cartan involution ?. 37. Such a collection of constants of motion are said to be in involution with each other. 38. PMCA2 expression falls on weaning, leading to calcium-induced apoptosis and mammary gland involution . 39. The formula for the involution follows. 40. This can be seen most directly when the involution ? corresponds to a Hermitian symmetric space.