Abstract: A method performed by a network device of segmenting a corporate communications network is provided. The method comprises receiving, from a plurality of client devices in the corporate communications network, a measured value of a connectivity performance metric of a communication link over which each of the plurality of client devices has transferred data to at least one other randomly selected client device, and mapping the client devices into segments of the corporate communications network based on the measured value of the connectivity performance metric of each communication link, where two client devices communicating over a communication link having a measured value exceeding a connectivity quality measure will be mapped into a same segment. Devices for segmenting a corporate communications network are also provided.

Abstract: A method performed by a network device of segmenting a corporate communications network is provided. The method comprises receiving, from a plurality of client devices in the corporate communications network, a measured value of a connectivity performance metric of a communication link over which each of the plurality of client devices has transferred data to at least one other randomly selected client device, and mapping the client devices into segments of the corporate communications network based on the measured value of the connectivity performance metric of each communication link, where two client devices communicating over a communication link having a measured value exceeding a connectivity quality measure will be mapped into a same segment. Devices for segmenting a corporate communications network are also provided.

Abstract: A microfluidic device is provided for studying primary human airway cells cultured at the air-liquid interface defined in the device by a barrier between an apical and basolateral compartment provided by a porous support for growing a cell layer. Within the chip, a liquid flow channel is provided through the basolateral compartment. Primary measurement electrodes are arranged widely spaced apart in the basolateral compartment to cause a significant component of electrical current flowing between them to flow via the cell layer. Secondary measurement electrodes are also provided to make comparative measurements which are used to deduce parameters that are relevant for the equivalent circuit model use for analysing the data obtained from the primary measurement electrodes. The microfluidic device has a modular construction of substrate, spacer and sidewall piece, with the electrodes being formed on the substrate, and the substrate and spacer co-defining the flow channel.

Abstract: A method is provided for distributing data content in a P2P live streaming network comprising a plurality of peers and a streaming source periodically producing segments representing the data content to be distributed, wherein a group of the peers are assigned to download the data content from the streaming source and to distribute the data content to remaining peers. The method comprises a first peer making requests for a current segment produced by the streaming source, the requests being made at a rate higher than a rate with which the segments are produced by the streaming source. If the first peer is the first to download the current segment, then the current segment has been downloaded, wherein the network peers can download the current segment from the first peer. Otherwise, a second peer downloads the current segment and it announces this to the group on the P2P network.