Cooling apparatuses and methods are provided for pumped immersion-cooling of selected electronic components of an electronic system, such as a node or book of a multi-node rack. The device incorporates features which allow the device to be easily secured to the torso of an adult person and which provides a means of stability, support and balance for the child during rides on the adult’s back. Such memory devices further include global bit lines having multiple local bit lines selectively coupled to each global bit line, with each global bit line extending to local bit lines in each memory block of a memory sector. Other aspects and features disclosed herein further help achieve those goals, and particularly help fruit consumers to ripen store bought fruit. The annular bearing surface of the torquing member includes a first series of helically inclined surface segments having substantially the same pitch axis as the threads and a second series of helically inclined surface segments having the same pitch axis as the threads but a pitch equal to or greater than that of the threads, with an opposite incline.