A database system may provide definition of a first plurality of tasks associated with coroutine execution, and a second plurality of tasks associated with task-specific thread execution. The composition contains floccules of the active ingredient. With this feature, users can browse through content of other users efficiently. 2 or less; and a means for producing the battery separator. When the output transistor is enabled, it forms a load current having an instantaneous value that when averaged over the period of the input signal results in a desired average value of the load current. Compared with cuminoids, the inventive long acting curcumin derivative has a better release effect, a higher bioavailability and pharmaceutical activity, and thus can be useful for the treatment of diseases such as depression and cancer.