A method is provided for increasing the catalytic activity of acid zeolite catalysts characterized by a silica to alumina mole ratio of at least 12 and a constraint index within the approximate range of 1 to 12, comprising contacting said zeolite catalysts with water for a sufficient treating time, temperature and water partial pressure to bring about said increased activity. The increase in catalytic activity is within a zone of enhanced activity, said zone is defined as encompassing all those ...

A compound of the general formula ##STR1## and pharmaceutically acceptable salts thereof, in which formula the groups R.sup.0 are the same or different and are selected from the group consisting of hydrogen, halogen, alkyl having 1, 2 or 3 carbon atoms, and alkoxy having 1, 2 or 3 carbon atoms; R.sup.1 and R.sup.2 are methyl; R.sup.3 and R.sup.4 are the same or different and are hydrogen or an alkyl group having 1, 2 or 3 carbon atoms; and n is 0. Pharmaceutical preparations containing these com...

A simple glucan has the repeating unit structure ##STR1## and has a mean molecular weight of about two million. It is produced by culturing mycelia of Coriolus Versicolor Iwade FERM-P No. 2743, and subjecting the cultured medium to hot water extraction, ethanol precipitation, aqueous sodium acetate elution and ion exchange.

Peptides having the structural formula: ##STR1## wherein A is D-Thr, D-Val; B is D-Phe, D-Tyr; C is D-Phe, D-Tyr, O-Me-D-Tyr; wherein the ring formed by the peptide backbone contains 26 atoms and pharmaceutically acceptable non-toxic acid addition salts thereof are prepared by the solid phase method. These peptides have the property of inhibiting release of insulin, inhibiting growth hormone release and inhibiting glucagon release in humans and animals without materially affecting gastric secret...

The instant invention relates to plastic compositions having ectoparasiticidal activity, and, in particular, insecticidal and acaricidal, which contain particular ectoparasiticides and polyurethanes, and to animal collars comprising such plastics compositions.

The invention relates to new chemical compounds and to processes for their preparation. The compounds according to the invention correspond to the formula in which R is a saturated or unsaturated straight-chain C.sub.5 to C.sub.18 aliphatic radical and X represents --O--, --S--, --NH-- or --CH.sub.2 --, the salts, esters and quaternary alkyl ammonium salts of these compounds. These compounds may be used in particular as medicaments, as antiseptics, sterilizing agents and preservatives.

A compound of the formula ##STR1## or a pharmaceutically acceptable acid addition salt thereof, in which formula the group R.sup.0 is selected from the group consisting of hydrogen, chlorine, bromine, methyl, trifluoromethyl and methoxy. Pharmaceutical compositions containing these compounds are useful for treatment of depressive disorders.

A device is disclosed for determining ion activity in liquid solutions by the use of electrodes and a capillary bridge which promotes ionic migration between the electrodes. The bridge is formed of a porous material layer into which liquid solutions are absorbed, a bottom nonporous layer between the electrodes and the porous material, and a top nonporous layer on the other side of the porous material. Preferably, the three layers are apertured at each electrode to provide wells for receiving dro...

In order to monitor the movements of a patient who is confined to a bed and to alert supervisory personnel in the event that the patient attempts an unauthorized departure therefrom, an array of radiant energy emitters and a corresponding array of radiant energy detectors are installed in the headboard and in the footboard of the bed. In one embodiment, emitters supply infrared energy to the detectors so as to cover the bed with a blanket of invisible light. When the transmission of infrared ene...

In an apparatus for measuring ion activity, a reference electrode and an at least one test electrode project through an opening in a rotating plate while a cup receiver which holds a cup filled with the test solution is lifted from a disengaged position into a position where the cup receiver engages and is rotated by the rotating plate while the electrodes project into the solution. A measuring circuit connected to the electrodes measures the ion activity with the use of a reverse logarithmic am...