Abstract: The invention relates to the field of cancer therapy and diagnosis, in particular of carcinomas. The invention provides an isolated and/or recombinant nucleic acid comprising a tissue specific promoter or functional fragment thereof allowing for expression of a nucleic acid of interest operably linked to said promoter or functional fragment thereof in a cancer cell wherein said expression in said cancer cell is essentially carcinoma selective.

Abstract: The invention pertains to precipitated silica particles having edged surfaces and a length: width: depth ratio of 1:1:1 to 3:3–1:1 with the length being 0.25 to 15 mm, an absorbing capacity PV water (wt. % >;125, a pore volume PV Hg (ml/g) 0.8–4, a pore volume PV N2 (ml/g) 0.2–1.5, a bulk density BD (g/l) 200–500, and preferably a pH<8, for use as a cat liter.

Abstract: The invention pertains to an amorphous silica particle comprising 0.1 to 105 ppm boron atoms, and optionally 0.05 to 15 wt. % aluminum atoms wherein the boron and aluminum atoms are covalently bonded to the oxygen atoms of the silica network. The amorphous silica particles are used as a reinforcing filler for rubber articles, particularly for tires, more particularly for tire treads.

Abstract: The invention pertains to precipitated silica particles having edged surfaces and a length: width: depth ratio of 1:1:1 to 3:3-1:1 with the length being 0.25 to 15 mm, an absorbing capacity PV water (wt. % >;125, a pore volume PV Hg (ml/g) 0.8-4, a pore volume PV N2 (ml/g) 0.2-1.5, a bulk density BD (g/l) 200-500, and preferably a pH<8, for use as a cat liter.

Abstract: The invention pertains to an amorphous silica particle comprising 0.1 to 105 ppm boron atoms, and optionally 0.05 to 15 wt. % aluminum atoms wherein the boron and aluminum atoms are covalently bonded to the oxygen atoms of the silica network. The amorphous silica particles arc used as a reinforcing filler for rubber articles, particularly for tires, more particularly for tire treads.

Abstract: The invention relates to the field of cancer therapy and diagnosis in particular of carcinomas. The invention provides an isolated and/or recombinant nucleic acid comprising a tissue specific promoter or functional fragment thereof allowing for expression of a nucleic acid of interest operably linked to said promoter or functional fragment thereof in a cancer cell wherein said expression in said cancer cell is essentially carcinoma selective.

Abstract: The present invention relates to a compacted sodium silicate is provided having a molar ratio SiO2:Na2O from 1.6 to 3.3, characterized in that the silicate has the following properties: a bulk density of above 500 g/l, a porosity of above 190 ml/kg, and a mechanical strength corresponding to a dust percentage of below 40 wt %. Also provided is a process for preparing such silicate comprising the steps of: spray-drying an aqueous solution of sodium silicate with a molar ratio SiO2:Na2O from 1.6 to 3.3, applying an outlet temperature above 114° C., applying a water glass solution to the spray-dried powder, subjecting the water glass treated powder to a compacting step, applying a pressure below 100 bar, and crushing the resulting flakes having a thickness of above 4 mm to obtain the compacted sodium silicate.