Abstract: A method is provided for detecting, measuring or controlling particles and/or electromagnetic radiation, comprising providing a deformable material containing a deformable aperture defining a path for particles or radiation, adjusting the deformable aperture to a prescribed geometry and/or size by deforming the deformable material to change at least one of the parameters of the path defined by the deformable aperture, and causing the particle or radiation to be detected, measured or controlled to enter the deformable aperture. The method includes the step of monitoring the geometry and/or size of the deformable aperture and controlling the adjustment of the size of the deformable aperture in response to such monitoring. The required apparatus is easily fabricated from inexpensive materials.

Abstract: A method is provided for detecting, measuring or controlling particles and/or electromagnetic radiation, comprising providing a deformable material containing a deformable aperture defining a path for particles or radiation, adjusting the deformable aperture to a prescribed geometry and/or size by deforming the deformable material to change at least one of the parameters of the path defined by the deformable aperture, and causing the particle or radiation to be detected, measured or controlled to enter the deformable aperture. The method includes the step of monitoring the geometry and/or size of the deformable aperture and controlling the adjustment of the size of the deformable aperture in response to such monitoring. The required apparatus is easily fabricated from inexpensive materials.

Abstract: A method is provided for detecting, measuring or controlling particles and/or electromagnetic radiation, comprising providing a deformable material containing a deformable aperture defining a path for particles or radiation, adjusting the deformable aperture to a prescribed geometry and/or size by deforming the deformable material to change at least one of the parameters of the path defined by the deformable aperture, and causing the particle or radiation to be detected, measured or controlled to enter the deformable aperture. The method includes the step of monitoring the geometry and/or size of the deformable aperture and controlling the adjustment of the size of the deformable aperture in response to such monitoring. The required apparatus is easily fabricated from inexpensive materials.

Abstract: A method and apparatus for processing and analysing samples. The invention can be used in relation to any sample analysis where processing of the sample with one or more reagents is required. The invention has particular relevance for the DNA analysis of biological materials.

Abstract: A flexible skin 3 is fitted over a framework 20 that includes a plurality of longitudinal stringers 50-58 running the length of the bottom and sides of the kayak. Each stringer 50-58 is assembled from several elongate segments 80-85 held together by an internal shock cord. Transverse formers 10-13 separate the stringers to define the hull outline and are releasably fixable to the stringers. Bow and stem formers 10, 13 are fixed in a manner allowing them to slide longitudinally, thereby laterally spreading and tensioning the stringers 51-58. Flexible tension members 73, 74 provide longitudinal bending strength and assist in shortening the framework 20 for assembly. A block 21 inserted in a joint 30′ between adjacent segments of a stringer provides a means for locking the segments in a telescopically extended position, for expanding the framework longitudinally.