Described are yeast-leavened freezer-to-oven dough compositions, and methods of preparing them, wherein preferred compositions include an amount of freezing point depressant to reduce freezing onset temperature but not to prevent ice formation altogether, and wherein the process for preparing the dough composition can include a resting step following mixing. A control unit produces the gain control signal as well as a reverse path control signal which causes adaptation of variable resistances and capacitances in such a way that the time constant of the filter unit varies essentially proportionally with the gain of the variable amplifier unit. The toner concentration detector detects a toner concentration in the developer at a predetermined detection position located upstream of the supply position. The identification module may identify a network user’s login identification and provide the network user’s status using the user indicator. The radial anisotropic sintered magnet has excellent magnet characteristics without occurrence of cracks in the steps of sintering and cooling for aging, even if the magnet has a shape of a small ratio between an inner diameter and an outer diameter. Release of an active component from the matrix may be delayed or controlled over time so that the active component is delivered when and where it is needed to perform its intended function.