A compound of formula (I) (I) and its physiologically acceptable salts and solvates are described as useful in treating and/or preventing pain resulting from dilatation of the cranial vasculature in particular migraine. The compound (I) may be prepared, for example, by cyclizing a compound of formula (II) (II)

Novel alpha -aryl-4-(4,5-dihydro-3,5-dioxo-1,2,4-triazin-2(3H)-yl)-benzeneacetontr iles which are effective in destruting and/or preventing the growth of Protozoa; pharmaceutical compositions comprising such compounds as active ingredients and processes of preparing such compounds and pharmaceutical compositions.

Novel alpha -aryl-4-(4,5-dihydro-3,5-dioxo-1,2,4-triazin-2(3H)-yl)-benzeneacetontr iles which are effective in destruting and/or preventing the growth of Protozoa; pharmaceutical compositions comprising such compounds as active ingredients and processes of preparing such compounds and pharmaceutical compositions.

In the preparation of dimethyl ether by the catalytic dehydration of methanol, reaction rate is enhanced and catalyst coking and byproduct formation are significantly reduced when an aluminotitanate containing 0.5-20% of titania and 80-99.5% of alumina is used as the catalyst.

A drive system for a group of brushless A.C. motors (15) which have mutually different working characteristics, for example mutually different voltages or frequencies, and which are arranged to be supplied with electric energy from a static converter (4). The system is characterized in that all motors (15) are arranged to be connected electrically, one at a time, to one and the same converter, and...

A drive system for a group of brushless A.C. motors (15) which have mutually different working characteristics, for example mutually different voltages or frequencies, and which are arranged to be supplied with electric energy from a static converter (4). The system is characterized in that all motors (15) are arranged to be connected electrically, one at a time, to one and the same converter, and...

The group of motors to be driven comprises at least two of the brushless type, which have different work characteristics e.g. frequency or maximum torque. They are all connected electrically to a single adjustable rectifier, and identification components. Each of them is connected to a control input on the converter to ensure that it generates a specific drive voltage or current corresp. to the mo...

A device for feeding out viscous substances from tubes and other containers comprises an elastically deformable arched dome 118, which is produced in one piece with two tongues 119,120 which serve as non-return valves. The dome/tongues unit is accommodated in a housing 101 and the tongues 119,120 bear with pre-tension against wall sections of this housing which surround an inlet opening 106 and an...

According to the process of the invention one starts with a block of wood of approximately parallelepipedal shape from which, by means of operations of milling and turning, there are obtained opposed surfaces on which there are subsequently milled parallel channels extending through almost one-half of the thickness of the block. Into the channels there is introduced resilient rubber so as then to ...

According to the process of the invention one starts with a block of wood of approximately parallelepipedal shape from which, by means of operations of milling and turning, there are obtained opposed surfaces on which there are subsequently milled parallel channels extending through almost one-half of the thickness of the block. Into the channels there is introduced resilient rubber so as then to ...