1 Rhythmic periods of pulling and resting are usually applied, with each position being held for up to 10 seconds.  Mechanical Cervical Traction. Mechanical traction for your neck involves using a harness that attaches to your head and neck while you're lying down on your back.
Sandwich ELISA Protocol. An Enzyme-linked immunosorbent assay or Sandwich ELISA is a scientific technique used by researchers to detect the presence of an antibody or an antigen in a sample.An ELISA can also be used as a diagnostic tool in medicine.andwich ELISA Protocol. An Enzyme-linked immunosorbent assay or Sandwich ELISA is a scientific technique used by researchers to detect the presence of an antibody or an antigen in a sample.
The sample with an unknown amount of antigen is immobilized on a solid support (usually a polystyrene microtiter plate) either non-specifically (via adsorption to the surface) or specifically (via capture by another antibody specific to the same antigen, in a sandwich ELISA). substrate for the enzyme is applied, and catalysis by the enzyme leads to a change in color or fluorescence. ELISA results are reported as a number; the most controversial aspect of this test is determining the cut-off point between a positive and a negative result.