Abstract: The method provides an improved quartz glass body, especially an improved quartz glass crucible for melting non-metals, non-ferrous metals, or silicon. The quartz glass body is made by a method in which a quartz glass-water mixture is supplied to a gypsum casting mold comprising an outer part and an inner part, dried in the gypsum mold, and put under an overpressure via a system of ducts in the form of textile tubes embedded in the mold during the drying. Later a resulting green glass body is removed from the mold. At least a portion of the shaping surfaces of the inner part of the gypsum mold are surfaces of a water-impermeable substance. The method provides a cast body with a reduced tendency to crack and with a smaller open porosity.

Abstract: A method for producing permanent integral connections of oxide-dispersed metallic materials by welding. The materials or components to be connected are overlapped to form an overlapping region in a joining region of the overlapping region. The materials or components are heated below the melting temperatures of the materials and are welded to at least partially form a diffusion bond by a welding method. A noble metal foil may be between the components to be connected. The diffusion bond is heated subsequently to a temperature below the melting temperature of the materials or components and the bond is mechanically recompacted by hammering.

Abstract: A method for producing permanent integral connections of oxide-dispersed metallic materials by welding. The materials or components to be connected are overlapped to form an overlapping region in a joining region of the overlapping region. The materials or components are heated below the melting temperatures of the materials and are welded to at least partially form a diffusion bond by a welding method. A noble metal foil may be between the components to be connected. The diffusion bond is heated subsequently to a temperature below the melting temperature of the materials or components and the bond is mechanically recompacted by hammering.

Abstract: A method of increasing the inherent defense mechanisms of plants by treating them with chloronicotinyls is disclosed. Chloronicotinyls produce, independently of their control of insects, effective protection of plants against damage from fungal, bacterial or viral pathogens. This defense against pathogens is obtained by the induction of PR proteins resulting from treatment with at least one chloronicotinyl.

Abstract: The invention includes an improved quartz glass body, especially an improved quartz glass crucible for melting non-metals, non-ferrous metals, or silicon, and a method and casting mold for making it The quartz glass body is made by a method in which a quartz glass-water mixture is supplied to a casting mold comprising an outer part and an inner part, dried in the mold, and put under an overpressure during the drying. Later a resulting green glass body is removed from the mold. At least a portion of the shaping surfaces of the inner part of the mold are surfaces of a water-impermeable substance. The method provides a cast body with a reduced tendency to crack and with a smaller open porosity.

Abstract: A method for producing permanent integral connections of oxide-dispersed metallic materials by welding. The materials or components to be connected are overlapped to form an overlapping region in a joining region of the overlapping region. The materials or components are heated below the melting temperatures of the materials and are welded to at least partially form a diffusion bond by a welding method. A noble metal foil may be between the components to be connected. The diffusion bond is heated subsequently to a temperature below the melting temperature of the materials or components and the bond is mechanically recompacted by hammering.

Abstract: A method for producing permanent integral connections of oxide-dispersed metallic materials by welding. The materials or components to be connected are overlapped to form an overlapping region in a joining region of the overlapping region. The materials or components are heated below the melting temperatures of the materials and are welded to at least partially form a diffusion bond by a welding method. A noble metal foil may be between the components to be connected. The diffusion bond is heated subsequently to a temperature below the melting temperature of the materials or components and the bond is mechanically recompacted by hammering.

Abstract: A method for producing permanent integral connections of oxide-dispersed metallic materials by welding. The materials or components to be connected are overlapped to form an overlapping region in a joining region of the overlapping region. The materials or components are heated below the melting temperatures of the materials and are welded to at least partially form a diffusion bond by a welding method. A noble metal foil may be between the components to be connected. The diffusion bond is heated subsequently to a temperature below the melting temperature of the materials or components and the bond is mechanically recompacted by hammering.

Abstract: The invention is drawn to plant cell transformation with a nucleic acid construct comprising a prokaryotic ammonium-specific asparagine synthetase, type A, coding sequence, operably linked to a chloroplast transit peptide-encoding sequence, wherein said plant cells also contain a nucleic acid construct comprising a chloroplastic glutamine synthetase coding sequence in antisense orientation. Plant cells containing both nucleic acid constructs, and plants regenerated therefrom, exhibit improved growth characteristics.

Abstract: A method for producing permanent integral connections of oxide-dispersed metallic materials by welding. The materials or components to be connected are overlapped to form an overlapping region in a joining region of the overlapping region. The materials or components are heated below the melting temperatures of the materials and are welded to at least partially form a diffusion bond by a welding method. A noble metal foil may be between the components to be connected. The diffusion bond is heated subsequently to a temperature below the melting temperature of the materials or components and the bond is mechanically recompacted by hammering.

Abstract: A process for the production of plants with improved growth characteristics by targeted expression of bacterial asparagines synthetase in the chloroplasts or plastids, and plants therefrom, are disclosed and claimed, together with intermediates therefor.

Abstract: Transgenic pathogen-resistant organism whose genome contains at least two different genes under the control of active promoters with pathogen-inhibiting action. This organism is distinguished by a synergistic pathogen-inhibiting action. This action is evident particularly when the genes code for the gene products chitinase (ChiS, ChiG), glucanase (GluG), protein synthesis inhibitor (PSI) and antifungal protein (AFP).

Abstract: Transgenic pathogen-resistant organism whose genome contains at least two different genes under the control of active promoters with pathogen-inhibiting action. This organism is distinguished by a synergistic pathogen-inhibiting action. This action is evident particularly when the genes code for the gene products chitinese (ChiS, ChiG), glucanase (GluG), protein synthesis inhibitor (PSI) and antifungal protein (AFR).

Abstract: The invention relates to novel hirudin conjugates formed from a hirudin and one or more lipophilic compounds, where the lipophilic compound has an octanol/water partition coefficient of more than 1.8 and is chemically linked to the hirudin, to the preparation thereof and to the use thereof.

Abstract: A multifunctional RNA having self-processing activity, the preparation thereof and the use thereof Host cells can be transformed so that they express ribozyme RNA and antisense RNA which are connected with each other via a spacer. The RNA molecules can, for example, be complementary to a certain viral RNA. Plants which have been transformed with genes coding for RNA of this type show a significantly improved resistance to viruses.

Abstract: The polypeptide with the sequence (SEQ ID NO:1)Ala-Thr-Tyr-Asn-Gly-Lys-Cys-Tyr-Lys-Lys-Asp-Asn-Ile-Cys-Lys-Tyr-Lys-Ala-Gln -Ser-Gly-Lys-Thr-Ala-Ile-Cys-Lys-Cys-Tyr-Val-Lys-Lys-Cys-Pro-Arg-Asp-Gly-Al a-Lys-Cys-Glu-Phe-Asp-Ser-Tyr-Lys-Gly-Lys-Cys-Tyr-Cyscan be produced by the fermentation of Aspergillus giganteus and used as an antifungal agent.Expression of this polypeptide gene in plants strongly inhibits the growth of phytopathogenic fungi on the plant.

Abstract: Transgenic pathogen-resistant organism whose genome contains at least two different genes under the control of active promoters with pathogen-inhibiting action. This organism is distinguished by a synergistic pathogen-inhibiting action. This action is evident particularly when the genes code for the gene products chitinase (ChiS, ChiG), glucanase (GluG), protein synthesis inhibitor (PSI) and antifungal protein (AFP).

Abstract: The gene asnA which encodes a prokaryotic ammonium-specific asparagine synthetase (ASN-A) can be introduced into plant cells. Such transformed cells and plants developed therefrom not only tolerate glutamine synthetase inhibitors but are effectively stimulated by such herbicides.

Abstract: A multifunctional RNA having self-processing activity, the preparation thereof and the use thereof.Host cells can be transformed so that they express ribozyme RNA and antisense RNA which are connected with each other via a spacer. The RNA molecules can, for example, be complementary to a certain viral RNA. Plants which have been transformed with genes coding for RNA of this type show a significantly improved resistance to viruses.

Abstract: Transgenic pathogen-resistant organism whose genome contains at least two different genes under the control of active promoters with pathogen-inhibiting action. This organism is distinguished by a synergistic pathogen-inhibiting action. This action is evident particularly when the genes code for the gene products chitinase (ChiS, ChiG), glucanase (GluG), protein synthesis inhibitor (PSI) and antifungal protein (AFP).