â¢ Humoral immunity is mediated by B-cells while cell-mediated immunity is mediated by T-cells. â¢ In the humoral immunity, the B-cells secrete antibodies whereas in the cell-mediated immunity, the T-cells do not secrete receptors. T-cell receptors are bound to the T-cells and the cells themselves bind with antigens.
The M.P.D. as it appears in-game. The M.P.D. is a pyramid-shaped Vril machine, with a circular indented interface at the front that, when the Vril Generator is applied, grants the power to control the Aether's energy. When powered by souIs, it is able to open a direct portal to the Aether, which drove Richtofen insane and give him Schizophrenia.
IPD is also used to describe the distance between the exit pupils or optical axes of a binocular optical system. Pupillary distance (PD) also describes the distance between the two pupils, but is an optometric term used to specify prescription eyewear. The PD of a patient is used to specify prescriptive eyewear for that patient. The distinction with IPD is the importance of anthropometric databases and the design of binocular viewing devices with an IPD adjustment that will fit a targeted population of users.