Abstract: Apparatuses, systems, and methods for the collection and sampling of agents (including organisms and pathogens) to determine the health of an animal colony. The apparatus includes a perforated housing that incorporates a collection media. The collection media is configured to collect a sample from a target animal, such as a mouse or rat, through the perforations of the housing when the target animal interacts with the perforated housing. The collected sample may include dust, feces, fur, urine, saliva, or other aspect of the target animal's environment.

Abstract: An MOS dynamic RAM organized in a byte-wide arrangement is described. An internal bus is used for multiplexed column address signals and data. Other multiplexing reduced the lines associated with the input/output circuits. A unique power-on circuit automatically resets clock generators if they are not operative after power is applied.