Abstract: The present invention relates to a process for the selective isolation of highly purified, crystalline D-mannose from complex sugar mixtures, in particular from mixed wood sugars, more particularly from spent sulfite liquor (SSL). The process of the present invention is based on converting mannose into essentially pure mannose bisulfite adducts. Subsequent oxidative recovery of mannose from the mannose bisulfite adducts renders crystalline mannose in improved yields and purities.

Abstract: A method for managing active measurements for determining performance parameters in a communication network comprises obtaining of a maximum permitted subsession duration and obtaining of time margins. The method further comprises determining whether or not a critical resource involved in the active measurement is active due to other activities than active measurements. If the determination concluded that the critical resource is active, a sending of an ensemble of packets of a subsession of an active measurement session is initiated. If there is an intended next subsession of the active measurement session and if a time since a last ensemble of packets was sent exceeds a sleep-init time comprised in the time margins, at least the determining and, if permitted, the initiating a sending of an ensemble of packets of the next subsession of the active measurement session is repeated.

Abstract: A client node, a proxy node, and methods therein, as well as a protocol and a computer program for enabling interception of request messages in connection-less protocols. A primary request addressed to a server node is intercepted by a proxy node creating a secondary request based on said request and forwards this secondary request towards the server node. The proxy node receives a secondary response, being a response to the secondary request, creates a primary response based on the secondary response and forwards this primary response to the node from which the primary request was received. A response can thus be sent along the same path as a corresponding request was sent.