In lieu of issuing bonds, or using another form of long-term debt, the state often uses a form of lease-purchase agreement called certificates of participation (COPs) to finance the construction of its new facilities. A certificate refers to an investor's proportionate interest in the state's lease payments. COPs give the state the flexibility to build capital facilities even when funds are not available to pay for projects on a pay-as-you-go basis....

An analysis of the measurement of the Earth Radiation Budget components both by standard radiometric principles and radiation pressure principles has been carried out in the context of a complete radiation budget experiment.