Abstract: The present invention relates to thermoresponsive wound dressings with thermally switchable adhesion/detachment, comprising: a carrier material, and an adhesive composition applied to a surface of the carrier material, the adhesive composition comprising: at least one vinyl alcohol/copolymer with the following formula (I): where x is an integer from 10 to 18 independently of one another with respect to each fatty acid unit, where the copolymer according to formula (I) is present at body temperature as a melt that adheres to wounds and skin, and upon cooling to a temperature above the freezing point of water, the crystallization of the copolymer according to formula (I) causes the wound dressing to detach, and a use of said thermoresponsive wound dressing for wound healing or for protection against skin injuries and skin disorders.

Abstract: A device for preventing unauthorized access to female modular telephone jacks. A physical plug has been designed such that when it is inserted into an RJ-11, RJ-14, or RJ-45 modular telephone jack, it locks into place and cannot be removed without the use of a specialized tool. The specialized tool then acts as a key to unlock the plug. Several different pairs of plugs and corresponding tools have been created such that there are different `locks` and `keys`.