December 7, 2017 Comments Off on Why Are Coral Reefs So Fragile Why Are Coral Reefs Overexploited December 7, 2017 Comments Off on Why Are Coral Reefs Overexploited
Automatic gain control (AGC), also called automatic voltage gain, is a closed-loop feedback regulating circuit, the purpose of which is to provide a controlled signal amplitude at its output, despite variation of the amplitude in the input signal.
In immunology, an antigen (Ag) is any structural substance that serves as a target for the receptors of an adaptive immune response, TCR or BCR or its secreted form antibody.ifferent antibodies have the potential to discriminate among specific epitopes present on the antigen surface. Hapten is a small molecule that changes the structure of an antigenic epitope. In order to induce an immune response, it has to be attached to a large carrier molecule such as a protein.