Abstract: A probe comprising a body portion and a tip portion. The body portion comprises: a first mounting portion comprising a plurality of first carriers, each first carrier being arranged to support an elongate first waveguide, the first carriers being disposed in an equiangular arrangement around a longitudinal axis of the body portion; a plurality of first waveguides, each first waveguide being supported in a respective one of the plurality of first carriers; and a body end fitting at which first ends of the first waveguides are supported in the equiangular arrangement around the longitudinal axis of the body portion such that the first waveguides can transmit electromagnetic radiation signals from an energy source to the body end fitting and/or transmit electromagnetic radiation signals from the body end fitting to a receiver.

Abstract: The invention relates to a compound comprising a mitochondrial targeting group linked to group capable of releasing hydrogen sulfide, or a pharmaceutically acceptable salt thereof, for use in the treatment of the human or animal body by surgery or therapy. The invention also relates to the use of the compound in the treatment of a plant, and to certain forms of the compound.

Abstract: Disclosed is a transmissive optical concentrator comprising an elliptical collector aperture and a non-elliptical exit aperture, the concentrator being operable to concentrate radiation incident on said collector aperture. The body of said concentrator may have a substantially hyperbolic external profile. Also disclosed is a photovoltaic cell employing such a concentrator and a photovoltaic building unit comprising an array of optical transmissive concentrators, each having an elliptical collector aperture; and an array of photovoltaic cells, each aligned with an exit aperture of a concentrator, wherein the area between adjacent collector apertures is transmissive to visible radiation.

Abstract: A mooring limb for damping the oscillations of a moored object comprising an axially extensible outer sheath, and an inner radially compressible core, the core being compressible radially by the sheath as the axial length of the limb increases, the limb being axially contractible as a result of a force provided by the core acting radially outward onto the sheath.