1 Digital rectal examâthe doctor inserts a gloved finger into the rectum to feel for polyps. 2  Stool testâa sample of your stool is checked for blood.  Sigmoidoscopy âa thin, lighted, flexible tube is inserted into the rectum to examine the rectal area and the lower colon.
A photovoltaic system, also solar PV power system, or PV system, is a power system designed to supply usable solar power by means of photovoltaics.owadays, solar PV modules account for less than half of the system's overall cost, leaving the rest to the remaining BOS-components and to soft costs, which include customer acquisition, permitting, inspection and interconnection, installation labor and financing costs.
Solar power is the use of the sunâs energy either thermally or through the use of photovoltaic cells in solar panels and transparent photovoltaic glass to generate electricity. Standard photovoltaic solar panels are the most efficient application of photovoltaics.