Abstract: This invention relates to a detection method for nucleic acids in samples that contain biological material, as well as to a kit having components with which the detection method can be carried out. In samples that contain biotechnologically produced biological material, for example, the detection method is suitable for detecting nucleic acids of host cells that were used for the production of the material.

Abstract: The invention relates to a transmission electron microscope equipped with a 2k?2k pixel area Slow Scan Cooled Charge Coupled Device Camera connected to an image processing software for generating an image of a sample. A segmentation of gold particles in the sample is achieved by the separation from specimen structure and background noise. An identification and classification of particle types is carried out according to the shape and size of the detected particles or particle pairs and finally, the gold particle distribution is visualized by the generation of false color overlay images as well as the indication of the numbers in the image.

Abstract: The invention relates to plasmids derived from pBluescript KS(+), which contains more than 1, preferably 2, 7, 14, 21 and 27, respective SK primer elements, and their use in analytical electron microscopy.

Abstract: The intention is to provide a process for the contrast enhancement of a specific particle in an image of a specimen, taken by a transmission electron microscope, in which a calculated contrast-rich image is created by way of the background intensities calculated from the intensities of a first image being drawn off pixel by pixel, whereby the background intensities are calculated as a function of the intensities of a second image. In this situation, it is intended that this process should feature a higher range of application than processes known hitherto, and, in particular, are well-suited for contrast enhancement for gold particles in immuno-gold marking.

Abstract: The invention relates to a compound which contains boron and which comprises the following general formula (1) in which Cb represents carborane, R2 and R3, independent of one another, represent a hydrogen atom or an organic radical, and R and R1, independent of one another, represent a hydrogen atom or an organic group, or R and R1 form a carbonyl group with the carbon atom to which they are bound. The invention also relates to a method of producing a compound containing boron and to the application of the same.

Abstract: An electrophotographic recording material comprises an electrically conductive base material, an optional insulating intermediate layer and a photoconductive layer comprising at least one layer containing an asymmetrically substituted perylene-3,4,9,10-tetracarboxylic acid imide as charge carrier producing compound, a photoconductor as charge transport compound, binder and customary additives. The asymmetrically substituted perylene-3,4,9,10-tetracarboxylic acid imide can, for example, be represented by the formula ##STR1## where R denotes hydrogen, alkyl, hydroxyalky, alkoxyalkyl, aryl or aralkyl and A denotes phenylene, naphthylene or a more highly fused aromatic carbocylic or heterocyclic radical which can each be substituted by halogen, alkyl, cyano or nitro groups. This material is suitable in double-layer arrangement for highly light sensitive systems, and in a single layer for preparing printing forms or printed circuits.