Abstract: A system response of an individual listener's brain to a sound signal stimulus is estimated. The system response represents the generation of an electroencephalography signal measured at a given measuring point of the listener's head by the sound signal stimulus. A sound signal with the sound signal stimulus is presented to the ear of the listener. An audio signal corresponding to the sound signal is generated, and audio signal data is extracted from the audio signal with a measuring electrode that measures an electroencephalography training signal. A measurement data set is generated from the first electroencephalography training signal. A noise signal is measured on the listener's head while the first sound signal impinges on the listener's ear. A Gaussian conditional probability density function taken as the system response of the listener's brain to the sound signal stimulus, with respect to the given measurement point.

Abstract: A hydraulic system for a mobile working machine includes a hydraulic pump, a steering valve, a steering actuator controlled by the steering valve, a first hydraulic line which extends between the hydraulic pump and the steering valve, and a hydraulic storage unit which is connected with the first hydraulic line via a second hydraulic line). So as to optimize a pressure state for the hydraulic system, a throttle connected in parallel with a check valve is located in the second hydraulic line. The check valve permits one-way fluid flow in a direction away from the hydraulic storage unit.

Abstract: The invention relates to a method for the production of phospholipids of general formula (I) with the exclusive aid of phospholipase D from a phospholipid mixture and without using organic solvents, wherein phosphatidyl acid is produced in an aqueous, unbuffered phase with phospholipase D and at least one bivalent metal ion in a first step and at least one phospholipid of general formula (I) is produced from the phosphatidyl acid having at least one compound of general formula (II) R3—OH in a second step. Phosphatidylserine, phosphatidylcholine, phosphatidylethanolamine, phosphatidylinosite and/or phosphatidylglycerine are obtained as products. In another embodiment of the invention, the PLD is identical or different in both steps of said method, wherein in the latter case the pH values for the first and second steps of the method are different, said values lying particularly between 6.5 and 8.0, especially between 5.0 and 7.5.

Abstract: The invention relates to a method for the production of phospholipids of general formula (I) with the exclusive aid of phospholipase D from a phospholipid mixture and without using organic solvents, wherein phosphatidyl acid is produced in an aqueous, unbuffered phase with phospholipase D and at least one bivalent metal ion in a first step and at least one phospholipid of general formula (I) is produced from the phosphatidyl acid having at least one compound of general formula (II) R3—OH in a second step. Phosphatidylserine, phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositeand/or phosphatidylglycerine are obtained as products. In another embodiment of the invention, the PLD is identical or different in both steps of said method, wherein in the latter case the pH values for the first and second steps of the method are different, said values lying particularly between 6.5 and 8.0, especially between 5.0 and 7.5.

Abstract: A device for the detection of electromagnetic radiation, wherein the device has (i) a photoactive layer of a semiconductor having a band gap of greater than 2.5 eV, (ii) a dye applied to the semiconductor, and (iii) a charge transport layer comprising a hole conductor material, where the hole conductor material is preferably solid and amorphous.

Abstract: The invention relates to a process for detecting the catalytic activity of solid materials, in which process one or more starting materials are brought to reaction in the presence of the solid materials, characterized in that the solid materials are present, spatially separated from one another, on a support, in that the starting materials are brought into contact with the solid materials and in that the resultant product or products are analyzed by a mass spectrometer, with resolution of location regarding the solid materials on the support. The advantages of the process according to the invention are essentially that a rapid serial or parallel detection of the catalytic activity of solid materials under identical conditions is now possible.

Abstract: The invention pertains to a process for examining chemical reactions in the presence of potentially catalytical substances, wherein reactions are triggered in miniaturized reactors with volumes of 0.001 cm3 to 1 cm3 arranged parallel to each other, and the nature and amount of the reaction mixture are analyzed during the reaction time.