Although characteristics vary under the laws of different countries, it can be described as: 1  a privileged claim, 2  upon maritime property, 3  for service to it or damage done by it, 4  accruing from the moment that the claim attaches, 5  travelling with the property unconditionally, 6  enforced by an action in rem.
Visualization: ethidium bromide (EtBr) and dyes The most common dye used to make DNA or RNA bands visible for agarose gel electrophoresis is ethidium bromide, usually abbreviated as EtBr. It fluoresces under UV light when intercalated into DNA (or RNA).
Radioactive elements have a lot of important uses and they also cause some dangerous problems if they are not handled properly. Henri Becquerel first found out about radioactive elements late in the 19th century by placing some photograpic film under uranium salts.horium, a naturally ocurring radioactive element, is used in making mantles for gas and kerosene lamps because thorium oxide glows brightly when heated. The radioactive elements uranium and plutonium are used in the generation of electricity in nuclear power plants.