A ceramic scaffold operable to support a defect in bone and a surrounding healthy tissue comprising a ceramic body having a plurality of pores, the pores having a bioactive material incorporated therein, wherein the bioactive material adheres to the ceramic body with a resorbable material adhesive. Tags attached to objects such as trailers include GPS receivers. A variety of statistical information for comparison is provided through an IHD installed at each house, whereby the energy consumers can easily and conveniently evaluate his own energy consuming propensity.