Abstract: A method of conducting representative sampling is provided. In one embodiment, the method includes scheduling a plurality of observation prompts at bias-controlled times, in which the user is presented a series of items, called a tick list, for selection by the user; executing the scheduled observation prompts; accepting the user's selection(s) of items upon the observation prompts; counting the number of occasions on which each item is selected; and using the tick counts for representative sampling purposes. Additional features can render the method even more powerful and adaptable to diverse fields, and the method can be advantageously embodied in a computer based means. A user can thereby easily and inexpensively conduct representative sampling of nearly anything for which the user can develop a meaningful tick list.

Abstract: A protective garment for capture and filtration of flatus wherein the garment comprises a water vapor-permeable, air-impermeable membrane that provides a containment body. The containment body captures flatus but not moisture, and a chemically active filter disposed over a hole in the containment body remove odor from the flatus. In one embodiment, the membrane is impregnated with a chemically active substance that also acts as a filter. In another embodiment, the membrane is laminated to a stretchable fabric to increase mechanical efficiency as well as comfort.