Group 11 element can also lead to the accumulation of these metals in body tissue; the results are the irreversible but apparently harmless pigmentation conditions known as chrysiasis and argyria respectively. Due to being short lived and radioactive, roentgenium has no biological use but it is likely extremely harmful due to its radioactivity. Group 11 element Group 11, by modern IUPAC numbering, is a group of chemical elements in the periodic table, consisting of copper (Cu), silver (Ag), and gold (Au). Roentgenium (Rg) is also placed in this group in the periodic table, although no chemical experiments have yet been carried out to
CU-SeeMe CU-SeeMe CU-SeeMe (also written as CUseeMe or CUSeeMe depending on the source) is an Internet videoconferencing client. CU-SeeMe can make point to point video calls without a server or make multi-point calls through server software first called a "reflector" and later called a "conference server" or Multipoint Control Unit (MCU). Later commercial versions of CU-SeeMe could also make point-to-point or multi-point calls to other vendor's standards-based H.323 endpoints and servers. CU-SeeMe was originally written by Tim Dorcey of the Information Technology department at Cornell University. It was first developed for the Macintosh in 1992 and later for the Windows platform