A three-dimensional high density memory array includes multiple layers of segmented bit lines with segment switch devices within the memory array that connect the segments to global bit lines. When the fan is in the low duty cycle, a first circuit loop is switched on, so that the fan has more accurate rotation speed. The deodorant composition of the present invention is capable of reducing or eliminating a composite odor derived from sweat smell and aldehydes, readily producing a water-based deodorant, and is safe even upon contacting with a human body. A second end of the first metal element is open and adjacent to the first end. In response to receiving a request to one reference code from the client, a determination is made from the resource associated with the requested reference code and returning the determined resource to the requesting client. Shedding of APP can be a useful marker for neurodegeneration and compounds that inhibit shedding of APP are useful as inhibitors of neurodegeneration.