The invention provides metal carbamates of the general formula where R1 and R2 are each an alkyl group. The apparatus includes a memory means in which said received data can be stored for subsequent selective access by the user of the apparatus. The additional caps can be permanently fixed to each other and to the traditional cap. In one or more embodiments, the first mixture can have a spatially varied ratio of oxygen-to-carbon dioxide configured to generate a hot zone in the combustion zone to increase flame stability in the combustion zone. The deflecting surface has an outlet edge offset to the third seat surface. By providing the alternate valid bits the dual set of resource valids for each remote requester is provided for each remote requester, where one set of valids indicates if the resource is valid and actively working on the line, and the other set of valids indicates if the resource was valid but encountered some conflict that requires resolution before the request can complete.