Abstract: Porous partially fluorinated materials which bind aliphatic and aromatic hydrocarbons, fluorocarbons and freons with high weight adsorption capacities are provided. Such compounds may be used in separation of materials by exclusion such as selective separation of isomers of xylene.

Abstract: There is provided compounds of formula I, wherein Y, ring A, D1, D2a, D2b, D3, L1, Y1, L2 and Y2 have meanings given in the description, and pharmaceutically-acceptable salts thereof, which compounds are useful in the treatment of diseases in which inhibition of leukotriene C4 synthase is desired and/or required, and particularly in the treatment of a respiratory disorder and/or inflammation.

Abstract: In an embodiment, an image is received having a first portion and one or more other portions. The one or more other portions are replaced with one or more other images. The replacing of the one or more portions results in an image including the first portion and the one or more other images. In an embodiment, the background of an image is replaced with another background. In an embodiment, the foreground is extracted by identifying the background based on an image of the background without any foreground. In an embodiment, the foreground is extracted by identifying portions of the image that have characteristics that are expected to be associated with the background and characteristics that are expected to be associated with foreground. In an embodiment any of the images can be still images. In an embodiment, any of the images are video images.