Abstract: The present invention concerns a method and a device for determining mechanical stress load, and optionally interface effects, on particles dispersed in a fluid. According to the invention, fluid comprising dispersed particles such as biomolecules is fed into a sample space of a device comprising a jacket which encloses a sample chamber and at least two rolls arranged within said jacket such that said sample space is defined between said rolls, said rolls being independently rotatable with respect to each other, wherein said jacket has an inner surface which is essentially adapted to the outer surface of the rolls, rotational movement is imparted to at least one of the rolls of said device, and changes in the state of said particles are determined from which mechanical stress load acting on the particles can be determined.

Abstract: The present invention concerns a method and a device for determining mechanical stress load, and optionally interface effects, on particles dispersed in a fluid.

Abstract: The invention relates to a method for improved cleaning of a first substance which is bound to paramagnetic microparticles. Said microparticles are suspended in a first liquid. The inventive method comprises the following steps: a) microparticles are exposed to a first magnetic field in a first container so that they are securely maintained and are prevented from being washed away by a flow of the first liquid, and b) after step a), at least one part of the first liquid is guided through the line in a first direction of the first line and through another section, and in the second section, said part is exposed to a second or to the first magnetic field in order to hold onto the washed away microparticles. In the section, the surface of the cross section of the first line is enlarged. The second or first magnetic field inside the section has a larger cross-sectional field strength than the first magnetic field inside the first container.

Abstract: A benchtop securing device for securing objects to a table is provided. The benchtop securing device comprises a mounting plate having a table engaging surface adapted to abut a surface of a table, the mounting plate further having an object attaching surface adapted to mount an object thereon, and a sloped member having a sloping surface, the sloped member further being coupled to the mounting plate such that the table can be received between the mounting plate and the sloping surface of the sloped member. The benchtop securing device further comprises a sliding block having a sliding surface that has a slope that substantially matches the slope of the sloping surface of the sloped member, wherein when the sliding surface of the sliding block engages the sloping surface of the sloped member the benchtop securing device becomes securely attached to the table.

Abstract: A method for providing telecommunication backup to one or a plurality public communication lines 2 providing telecommunication from or to one or a plurality of extensions 5, wherein telecommunication between said extensions and said public communication lines is managed by an exchange 3, provides one or more wireless channels 9, 10 for telecommunication, wherein the exchange routes telecommunication towards said wireless channels when some or all of said public communication lines are not available.

Abstract: The present invention relates to a device, a kit and a method for the contamination-free preparation of analyte, in particular biopolymer comprising liquids. The device comprises wo chambers (2, 3) having a reversibly changeable volume.

Abstract: The invention relates to a method for carrying out a reaction in an unmoved liquid in a capillary which is open at at least one end, with gas bubbles forming in the liquid, with a detergent being added to the liquid for the purpose of changing at least one property of the gas bubbles which are being formed and with the capillary being arranged, or having been arranged, at at least an angle to the horizontal which is such that the gas bubbles in the capillary ascend to a surface of the liquid.

Abstract: The invention relates to a method for detecting and/or quantifying the binding of first molecules (16) to second molecules (18) affine therein. The inventive method comprises the following steps: a) providing a container (10), wherein the second molecules (18) are immobilized on a wall, b) contacting the second molecules (18) to a solution containing the first molecules (16), c) incubating the container (10) in such a way that the first molecules (16) bind to the second molecules (18) and build up on the wall and d) detecting the changes in concentration of the first molecules (16) in the solution by means of radiation without removing the solution from the container (10), whereby the solution is contained in said container (10).

Abstract: Amino acid derivatives, suitable for the treatment of obesity. The following compound is exemplary of the class: (R,S)-N.sup.2 -(diphenylacetyl)-N-?(4-hydroxyphenyl)methyl!-N.sup.5 -(1H-imidazol-2-yl)-ornithinamide.

Abstract: In a power control system for motor vehicles with a plurality of power-converting elements as well as sensors for determining the efficiency of the individual elements, a processor determines the overall system efficiency from the efficiencies of the individual components, and calculates and adjusts a value for a parameter that influences the efficiency of at least one component to achieve an optimum total efficiency. Surplus power is used to charge an energy storage device. Preferably the parameters that influence the efficiency, whose values are adjusted to achieve an optimum total efficiency, are the power, or a parameter that is proportional to the power, that is to be delivered by a power-generating component, and/or the rpm or a parameter that is proportional to the rpm of a component.

Abstract: Amino acid derivatives, suitable for the treatment of obesity. The following compound is exemplary of the class: (R)-N2-(diphenylacetyl)-N-[(4-hydroxyphenyl) methyl]-argininamide-acetate.

Abstract: Poly-N-acylalkyleneimines corresponding to the following formula ##STR1## are used as an oxidatively crosslinking constituent in paints. In formula (I), R--CO represents the acyl radical of a mono- or polyunsaturated, aliphatic C.sub.16-22 carboxylic acid or a mixture of such radicals, R'--CO represents the acyl radical of a C.sub.1-22 carboxylic acid or a mixture of such radicals and x and y represent the percentages by weight of the particular polymer units, x assuming values of 20 to 100% and preferably 20 to 95% and y assuming values of 80 to 0% and preferably 80 to 5%. The indices m and n independently of one another may assume the value 2 or 3.

Abstract: A method of determining the total fibrinolytic activity in plasma, is characterized in thata) a quantity of fibrin sufficient to produce turbidity is added to a dilute platelet poor plasma sample or is produced in situ and the time dependent change in turbidity or the time-dependent formation of fibrin cleavage products is measured; orb) a chromogenic plasmin substrate and a quantity of fibrin, fibrinogen cleavage products or an enzyme which produces fibrin in situ, insufficient to produce turbidity, is added to a dilute platelet poor plasma sample and the time dependent color formation is measured.

Abstract: In a multifunction printer with a journal device (13) for recording of data processed in the printer for purposes of data securing or, respectively, documentation, at least one print unit (6) is provided for the printing of the input data. In addition, in most cases, further printer modules (9), coordinated to a respective printer function, are furnished.

Abstract: Such electronic control systems contain safety circuits for device components endangered by excessive currents or excessive voltages, which are constructed only for a pulse operation and not for higher relative switch-on times.In order to shield the effectors (users) already in the pre-stage against undesirable high currents or, respectively, voltages, such that a punch through of these destroying voltages or, respectively, currents can be excluded for practical purposes, it is disclosed that an effector (1) is controllable in operating condition and simultaneously a reference voltage (R1/R2) can be switched on within the permissible tolerance region where, upon the exceeding of the tolerance region, the effector (1) can be switched off.

Abstract: 2-benzyl-1-alkanol polyglycol ethers having the formula: ##STR1## in which R.sup.1 is a C.sub.6 to C.sub.22 alkyl group; R.sup.2 is a C.sub.2 -C.sub.6 alkylene group; and n is an integer from 1 to about 100.The products are produced by heating a mixture of a ratio of an alcohol having the formula:R.sup.1 --CH.sub.2 --CH.sub.2 OHwherein the symbol R.sup.1 has the same meaning as above with a ratio of from about 1 mole to about 10 moles, preferably 1 to 3 moles, of benzyl alcohol to a temperature of from about 180.degree. C. to 250.degree. C. in the presence of an alkali metal compound, and optionally a hydrogenation catalyst; separating the excess benzyl alcohol from the mixture and alkoxylating the alcohol thus obtained.The polyglycol ether are used as wetting agents, dispersants, emulsifiers and detergents.

Abstract: Mild-to-the-skin salts of anionic tensides of the sulfonate and sulfate type containing as the ion of opposite charge a highly basic protein aminolysate, and their use in washing, rinsing and cleansing compositions as well as in cosmetic preparations which extensively come into contact with the skin.

Abstract: The method of activating aqueous solutions of percompounds utilizing hexacyclic ester-anhydrides of .alpha.-hydroxycarboxylic acids of the formula ##STR1## as activators, solid activated compositions comprising solid percompounds and said cyclic ester-anhydrides of .alpha.-hydroxycarboxylic acids, as activators.

Abstract: A process for the production of ether polycarboxylic acids comprising reacting alkali metal salts of ether carboxylic acids with carbon dioxide in the presence of a silicon compound selected from the group of alkali metal alkoxy-silanolates and alkali metal alkoxy-polysiloxanolates and, optionally, inert diluents at temperatures of 200.degree. to 350.degree.C under pressure, acidify the resulting alkali metal salt of an ether polycarboxylic acid and recovering said ether polycarboxylic acid.

Abstract: A process for the production of ether polycarboxylic acids comprising reacting alkali metal salts of ether carboxylic acids with carbon dioxide in the presence of an alkali metal alkoxy-silano-carbonate and, optionally, inert diluents at temperatures of 200.degree.C to 350.degree.C under pressure, acidify the resulting alkali metal salt of an ether polycarboxylic acid and recovering said ether polycarboxylic acid.