Abstract: An organic electroluminescence element in which a compound represented by the general formula below is used in a light-emitting layer exhibits a high emission efficiency and is inexpensive to provide. At least one of R1 to R8 and R17 represent an electron-donating group and the others represent a hydrogen atom; at least one of R9 to R16 represent an electron-withdrawing group that does not have an unshared electron pair at the ?-position thereof and the others represent a hydrogen atom; Z represents a single bond or >C?Y; Y represents O, S, C(CN)2 or C(COOH)2; provided that when Z is a single bond, then at least one of R9 to R16 is an electron-withdrawing group that does not have an unshared electron pair at the ?-position thereof.

Abstract: An organic electroluminescence element in which a compound represented by the general formula below is used in a light-emitting layer exhibits a high emission efficiency and is inexpensive to provide. At least one of R1 to R8 and R17 represent an electron-donating group and the others represent a hydrogen atom; at least one of R9 to R16 represent an electron-withdrawing group that does not have an unshared electron pair at the ?-position thereof and the others represent a hydrogen atom; Z represents a single bond or >C?Y; Y represents O, S, C(CN)2 or C(COOH)2; provided that when Z is a single bond, then at least one of R9 to R16 is an electron-withdrawing group that does not have an unshared electron pair at the ?-position thereof.

Abstract: The invention relates to a method and a device (10) for determining the relevance of preparations (4) of sample arrays (1), containing a plurality of individual samples (3) at various positions. To produce a method or a device (10) that can be performed as quickly as possible and preferably without destroying the preparations (4), a device (11) is provided for non-destructive scanning of the preparations (4) of the sample arrays (1), which is connected to a database (12) that contains information on the positions of the individual samples (3) of the preparations (4) and to a computer unit (16) for processing the scanned preparations (4) and for generating data fields for each individual sample (3) and for selecting at least one parameter from each individual sample data field and for comparing this parameter or a value derived therefrom or a combination of parameters or values derived therefrom to at least one threshold value.

Abstract: The invention relates to a method for automatic analysis of biological samples, in particular tissue samples, comprising a device (11) for scanning the samples (1) for forming data sets (4) of the samples (1). To produce a method or a device (10) by which the regions of interest (ROI) of the sample (1) can be determined as quickly as possible and as much as possible without destroying the samples (1), at least one parameter (P) is selected without destroying the sample (1) from a data set (4) of the sample (1) that is formed by using autofluorescence, and this parameter or a value derived therefrom or a combination of parameters (P) or values derived therefrom is compared to at least one threshold value (S), and the comparison value is used as a criterion for determining regions of interest (ROI) of the sample (1) and stored together with a unique identification (ID) of the sample (1).