Abstract: A method of fabricating a structure having an open cell foam element includes providing an open cell foam element of metallic, diamond, ceramic and/or refractory material form, and/or having one or more metallic, diamond, ceramic and/or refractory material coatings, the foam element defining a plurality of interconnected cells. The method further includes locating a material within the cells, and treating the material, in situ, by sintering and/or infiltration, to form a continuous mesh or lattice structure that extends within and through the cells of the open cell foam element. Structures fabricated using the method are also described.

Abstract: A computer-implemented method for operating a master trust that holds a portfolio of assets for plural feeder funds including at least a mutual fund and an exchange traded fund (ETF) is described. The master is a multi-class master fund of for feeder funds including an ETF class and mutual fund class. Shares in the ETF class and mutual fund class are exchanged between the mutual fund and master and the ETF and master according to types of transactions.