Abstract: Disclosed is a thermoset, thermal insulating foams having desirable and unexpectedly low thermal conductivity, and to compositions, method and systems which use and/or are used to make such foams comprising: (a) providing thermosetting foam forming component and a blowing agent for forming predominantly closed cells in the foam, wherein the blowing agent comprises: (i) cis-1,1,1,4,4,4-hexafluoro-2-butene (HFO-1336mzzm(Z)) and cyclopentane, with the HFO-1336mzzm(Z) and cyclopentane in the blowing agent together comprising at least about 50% by weight of the total of all components in the blowing agent and (ii) the weight ratio of HFO-1336mzzm(Z) to cyclopentane in the blowing agent is from about 45:55 to less than 68:32 and (b) forming foam from said provided foamable composition.

Abstract: The invention is directed to techniques to secure interactions between entities communicating on a computer network. In general, techniques are described in which a first entity provides assurances to a second entity that an agent interacting with the second entity is interacting with the second entity on behalf of the first entity. Specifically, the techniques provide the second entity with information tending to indicate that the first entity authorized the agent to perform the interaction with the second entity pursuant to some prior agreement between the two entities. The techniques employ authentication systems and encryption to ensure the security of the interaction.

Abstract: An operating lever for cable or wire actuated bicycle brakes wherein the lever is pivotally connected to a housing through a pin and slot connection whereby the lever is movable from a normal operative position to an inoperative position to thereby slacken the brake wire.

Abstract: An auxiliary brake lever for actuating the brakes of a bicycle wherein the auxiliary brake lever is operable independently of the main brake lever.