Abstract: In a method for calibrating or aligning a multistage selective amplifier including an oscillator circuit and at least one tuning circuit, the tuning voltages respectively necessary for aligning the respective tuning circuits to the required receiving frequency are calculated directly from a mathematical relationship between the respective tuning voltage and the oscillator voltage. In order to achieve this, a characteristic multiplicative coefficient and a characteristic additive factor for each tuning circuit are stored in a memory upon manufacturing or switching on the device. In order to select a desired receiving frequency, the respective stored values as well as an oscillator voltage are provided to an amplification circuit, which correspondingly amplifies the oscillator voltage by the multiplicative coefficient and the additive factor and then provides the resulting output value as a tuning voltage to the respective tuning circuit.

Abstract: The present invention relates to a depilating device with a multiple-shell housing (2), which a user can hold in the hand, a motor (13) accommodated in the housing (2), and a gear (14) to drive a rotary cylinder (8) which is preferably provided in a housing part (7) that is adapted to be uncoupled from the housing (2). The mechanically operated component parts, more particularly motor (13), gear (14), and rotary cylinder (8) with the housing part (8) in which it is incorporated, form an assembly unit (15) which is retained in the housing (2). Vibration absorbing elements (16, 17, 18) are provided at the points of connection between the assembly unit (15) and the housing (2).

Abstract: Compounds of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be identical to or different from each other, are each hydrogen, halogen, branched alkyl of 3 to 12 carbon atoms or cycloalkyl of 3 to 12 carbon atoms, provided, however, that at least one of R.sub.1 to R.sub.4 is other than hydrogen; the compounds are useful as dermatologics for the treatment of psoriasis, dandruff, ichthyosis and hyperkeratotic skin conditions.

Abstract: Pharmaceutical, cosmetic and pesticidal compositions containing a trifluoroacetyl-resorcinol of the formula ##STR1## wherein R.sub.2 and R.sub.4, which may be identical to or different from each other, are each hydrogen or methyl, andR.sub.3 and R.sub.5, which may be identical to or different from each other, are each hydrogen or ethyl.

Abstract: Compounds of the formula ##STR1## wherein R.sub.1 is perfluoroalkyl of 1 to 8 carbon atoms or 2,2,3,3-tetrafluoro-cyclobutyl,R.sub.2 and R.sub.4, which may be identical to or different from each other, are each hydrogen, alkyl of 1 to 10 carbon atoms, aliphatic acyl of 2 to 18 carbon atoms, benzoyl, salicyloyl or phenylacetyl, andR.sub.3 and R.sub.5, which may be identical to or different from each other, are each alkyl of 3 to 18 carbon atoms, halogen, nitro, p-toluenesulfonyl, cyclopentyl, cyclohexyl, cycloheptyl, cyclododecyl, methylcyclohexyl, dimethylcyclohexyl, benzyl, methylthio or ##STR2## where R.sub.1, R.sub.2 and R.sub.4 have the meanings previously defined,Q is --CH.sub.2 -- or --S--, andG is R.sub.5, as above defined, orQ is R.sub.3, as above defined, andG is --CH.sub.2 -- or --S--,R.sub.3 may, in addition, also be hydroxyl, methoxy, methyl or cyano, andR.sub.5 may also be methyl, orone of substituents R.sub.3 and R.sub.

Abstract: Topical dermatological compositions containing an acylamino-carboxylic acid compound of the formula ##STR1## wherein R.sub.1 is hydrogen, alkyl of 1 to 3 carbon atoms, trifluoromethyl, phenyl, halo-phenyl, nitro-phenyl or biphenylyl,R.sub.2 is hydrogen or alkyl of 1 to 3 carbon atoms,R.sub.3 is hydrogen, alkyl of 1 to 6 carbon atoms, methylthio-(alkyl of 1 to 6 carbon atoms) or benzyl,R.sub.4 is alkyl of 10 to 22 carbon atoms,n is 0, 1 or 2,R.sub.5 is alkyl of 8 to 22 carbon atoms, phenyl or biphenylyl, andR.sub.6 is hydrogen or alkyl of 1 to 3 carbon atoms; the compositions are useful for the care of the skin.

Abstract: Compounds of the formula ##EQU1## wherein R.sub.1 is lower alkyl or aryl,R.sub.2 is hydrogen or, together with R.sub.1, ethylene, andR.sub.3 is straight or branched alkyl of 8 to 22 carbon atoms;The compounds have useful therapeutic, dermatological and cosmetic properties.