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, and R.sub.3 is straight or branched alkyl of 8 to 22 carbon atoms; The compounds have useful therapeutic, dermatological and cosmetic properties.

Aldehydes with a higher number of carbon atoms and high selection are prepared by reacting olefins, in particular from petrochemical refinery products, by a hydroformylation with aldol condensation using a mixed catalyst of rhodium-carbonyl-phosphines and Mannich catalyst.

The present invention is directed to methods for control of auxin production, expression, and/or auxin movement in higher plants. In these methods 4-phenylbutyric acid is applied to a plant, seed, or surrounding soil.

A hub valve for a circulation control rotor having the inherent capability of producing pulses of air at a given frequency and at harmonics of that frequency. The valve comprises a series of diaphragm or other seals, one for each blade, at the inlet to the air passage in the blade. Each seal is connected by means of a connecting rod to a crankpin on the end of a crankarm. The crankarm is fixed to a support and control shaft in the middle of the hub. The rotational speed of the hub determines the...

A method for producing tri- or higher-silane from mono- or lower-silane characterized by reacting a lower silane in the first reaction zone and reacting a portion or all of the reaction product thereof in a reaction zone of the second or subsequent reaction zone.

Alkylcarboxylic acids (where alkyl is of 6 to 20 carbon atoms) are manufactured by hydrocarboxylating the corresponding olefins by means of cobalt carbonyl compounds in the presence of from 0.5 to 1.5 kg of N-methylpyrrolidone, per kg of the olefin, as the solvent.

A high-density memory card comprises a base card and two packages fixedly mounted within the base card. The two packages are attached to the base card and face each other. In one embodiment, a first package comprises a first substrate and at least one memory chip, and a second package comprises a second substrate and at least one memory chip. A first surface of the first substrate has external connection pads formed thereon and is exposed from the memory card. A second surface of the first subst...

Higher ketones prepared by contacting under suitable reaction conditions a feed stream comprising (a) a lower ketone having 3-5 carbon atoms per molecule and (b) carbon monoxide with a catalyst composition comprising copper oxide, zinc oxide and, optionally, alumina. The formed higher ketones contain at least one carbon atom per molecule more than the lower feed ketone, preferably methyl ethyl ketone.

Hydroprocessing such as hydrocracking is advantageously employed in processes for the recovery and purification of higher diamondoids from petroleum feedstocks. Hydrocracking and other hydroprocesses degrade nondiamondoid contaminants.

Source symbols are encoded for use in a higher level modulator by partitioning the source symbols into a number of classes. This principle is applied in a number of alternative transmitter and receiver embodiments. In one embodiment, a corresponding encoder is provided for each of the classes, and for each class, each of the source symbols is supplied to the corresponding encoder. For each encoder, coded symbols are supplied at an encoder output and the coded symbols are partitioned into a numbe...