The heart of every PV system is the array of photovoltaic modules. Today, the overwhelming majority of PV modules (more than 95%) are crystalline silicon, made from the second most abundant element on earth.
A. IgG and IgM are short for immunoglobulin G and immunoglobulin M. Immunoglobulins are also known as antibodies and are substances produced by the body's immune system in response to foreign substances such as bacteria, viruses, fungi or other substances like animal dander or cancer cells.gG antibodies are important for fighting bacterial and viral infections. IgG antibodies are the only type of antibody that can cross the placenta, therefore the IgG antibodies of a pregnant woman can also help protect her baby in its initial weeks of life before its own immune system has developed.
A tissue transglutaminase (tTG) IgA and/or IgG test is used as part of an evaluation for certain autoimmune conditions, most notably celiac disease.