1 Enzyme-linked immunosorbent assay (ELISA) . 2  This test is usually the first one used to detect infection with HIV. 3  If antibodies to HIV are present (positive), the test is usually repeated to confirm the diagnosis. 4  If ELISA is negative, other tests are not usually needed.
Product and process lifecycle management (PPLM) is an alternate genre of PLM in which the process by which the product is made is just as important as the product itself.Typically, this is the life sciences and advanced specialty chemicals markets.roduct and process lifecycle management (PPLM) [edit]. Product and process lifecycle management (PPLM) is an alternate genre of PLM in which the process by which the product is made is just as important as the product itself. Typically, this is the life sciences and advanced specialty chemicals markets.
A programmable logic device (PLD) is an electronic component used to build reconfigurable digital circuits. Unlike a logic gate, which has a fixed function, a PLD has an undefined function at the time of manufacture. Before the PLD can be used in a circuit it must be programmed, that is, reconfigured.