Fields of Anthropology. There are now four major fields of anthropology: biological anthropology, cultural anthropology, linguistic anthropology, and archaeology. Each focuses on a different set of research interests and generally uses different research techniques.
SPC is one of the three categories of Statistical Quality Control (SQC). SQC is a statistical method of analyzing variations in the manufacturing process in order to make it better and more effective. Only a certain number of samples are needed to determine whether the products are acceptable.
STC stands for Small-scale Technology Certificate. It is a scheme developed by the Federal Government to encourage more people to install renewable energy systems and to make it more affordable for everyone. You might find some people refer to them as a rebate. However this is really untrue.