An electrical connector has a conductive shell provided with a locking hole adapted to be engaged with a mating object in a disconnection direction. In particular, such compounds possessing one or more electron withdrawing substituents are described. The area density is defined as a number of user computing devices per unit area. The second stage has a programmable shift voltage associated therewith, and the third stage has a second programmable swing voltage associated therewith. More specifically, the golfball has a mantle andor cover that contains a combination of glass particles and an ionomeric component or a non-ionomeric component. The compounds have activity against hepatitis C virus and are useful in treating those infected with HCV.