Abstract: The invention concerns a process to convert di-rhamnolipid to mono-rhamnolipid, using an ?-L-rhamnosidase enzyme which has a sequence identity of at least 70% with either SEQ ID. 1 or SEQ. ID 2.

Abstract: The invention concerns a process to convert di-rhamnolipid to mono-rhamnolipid comprising the following process steps: —(a) contact of a starting di-rhamnolipid material with an ?-L-rhamnosidase enzyme which is immobilised on a support; (b) separation of the produced mono-rhamnolipid from the reaction medium and/or side products; wherein the ?-L-rhamnosidase enzyme does not have ?-D-glucosidase activity.

Abstract: An apparatus for use in a optical fiber ducting system, the apparatus including a housing; a first aperture in the housing, the first aperture being arranged to receive a multi-bore optical fiber duct including at least two bores; at least two further apertures in the housing, the further apertures each being arranged to receive a respective optical fiber duct; and at least one connection means for connection of an individual bore of the multi-bore duct to at least one of the respective fiber ducts.

Abstract: A synchronous telecommunications network comprises a number of rings each incorporating a plurality of multiplexers and each coupled to a switch via a respective master multiplexer. A disaster recovery interface point provides an interface to one or more remote switches. Each ring incorporates a dormant master multiplexer coupled to the disaster recovery point and which is activated in response to a failure of the switch as a replacement master multiplexer so as to re-route traffic on the synchronous ring to the remote switch. This maintains service in the event of a catastrophic failure of the switch.

Abstract: A cabinet for outdoor use for enclosing a rack of electronics equipment has a double skin protective outer casing comprising a lower air intake into a cavity between the skins of the double skin and an upper air output from the cavity to the outside, for unforced cooling air to flow, to extract heat from the equipment by convection. The inner of the skins is formed in part at least by a heat sink of the rack. This unites the thermal management of the rack and that of the enclosure to provide an improved thermal path from the cards in the rack to the cold wall. This means the temperature difference between the inner skin and the air in the cavity can be increased for a given card temperature, so more heat can be extracted. The heat sink may share the back wall of the rack with the motherboard.