Abstract: Apparatus and methods are presented for synchronising a slave device signal to a reference timebase, in situations where the slave device lacks knowledge of the propagation delay for signals from the reference device, e.g. if the positions of one or both of the devices are unknown or classified, or the inter-device signal propagation distance is otherwise a-priori unknown. Reference signal propagation delay is determined using an exchange of signals between the devices, with each device using a differencing procedure for eliminating effects of receiver line bias and other hardware delays. In another aspect an exchange of signals between the devices is used to detect a time residual arising from an inaccurate propagation delay estimate. The synchronisation methods can be applied to a plurality of slave devices for providing a synchronised location network. In certain embodiments signals are transmitted wirelessly, while in other embodiments they are transmitted via a fixed line.

Abstract: An isolated nucleic acid encoding Orf279 protein of amino acid sequence at least 95% identical to SEQ ID NO: 4, methods for detecting orf279 DNA, orf279 RNA or Orf279 protein and method for identifying functional Rf gene encoding a protein able to bind to orf279 RNA.

Abstract: A wheat transgenic plant carrying restorer of fertility genes specific to T. timopheevii CMS cytoplasm.

Abstract: A method of regulating expression of a gene in a cell is described, comprising the step of introducing into the cell a recombinant polypeptide comprising a PPR RNA-binding domain which itself comprises at least a pair of PPR RNA base-binding motifs. The PPR RNA base-binding motifs of the PPR RNA-binding domain are operably capable of binding the target RNA molecule with a target RNA sequence. Recombinant polypeptides comprising at least one PPR RNA-binding domain capable of binding to target RNA sequence are also described, together with fusion proteins comprising the recombinant PPR RNA-binding domains as well as isolated nucleic acids useful in preparing the recombinant polypeptides described. Recombinant vectors; compositions comprising the recombinant polypeptides; isolated nucleic acids; recombinant vectors; host cells comprising same; use of same in the manufacture of a medicament for regulating gene expression; as well as systems and kits for regulating gene expression are also described.

Abstract: The present invention provides an improved rendering system for walk-through applications. The method and system for a walk-through image rendering system in a data processing system provides a first image based on a geometry-based rendering approach in which a user's view position is changing; and also provides a second image based on an image-based representation of a scene in which the user's view position is not changing.