Dicarboxylic acid bis-(3,5-dicarbomoyl-2,4,6-triiodoanilides) of general formula I wherein the amide radicals -CONR1R2 and -CONR3R4 are different from one another and R1 is a hydrogen, a lower alkyl radical or R2, R2 is a straight-chain or branched-chain monohydroxy or polyhydroxy alkyl radical, R3 is hydrogen, a lower alkyl radical or R4, R4 is a straight-chain or branched-chain monohyd...

A dental X-ray fluoroscopy apparatus comprises a fibre optical system (28) which is curved through 180 DEG and which includes an entrance window (36) for intra-oral use. Because use is made of such a fibre optical system, the X-ray source (2) and the detector (14) can be accommodated together in one housing (1). Via three rotation couplings (42, 45 and 48), the housing is connected to an apparatu...

A bedding underlayer for the bed of an incontinent patient comprises an impervious base layer 2, 3 substantially wider than the bed so that opposite lateral portions 2 of the base layer can be tucked under the mattress of the bed, and a liquid-absorbing layer 4 in the middle of the base layer and of the same width as the bed, or of lesser width. The liquid- absorbing layer 4 is surrounded, at its ...

A bedding underlayer for the bed of an incontinent patient comprises an impervious base layer 2, 3 substantially wider than the bed so that opposite lateral portions 2 of the base layer can be tucked under the mattress of the bed, and a liquid-absorbing layer 4 in the middle of the base layer and of the same width as the bed, or of lesser width. The liquid- absorbing layer 4 is surrounded, at its ...

A bedding underlayer for the bed of an incontinent patient comprises an impervious base layer 2, 3 substantially wider than the bed so that opposite lateral portions 2 of the base layer can be tucked under the mattress of the bed, and a liquid-absorbing layer 4 in the middle of the base layer and of the same width as the bed, or of lesser width. The liquid- absorbing layer 4 is surrounded, at its ...

A bedding underlayer for the bed of an incontinent patient comprises an impervious base layer 2, 3 substantially wider than the bed so that opposite lateral portions 2 of the base layer can be tucked under the mattress of the bed, and a liquid-absorbing layer 4 in the middle of the base layer and of the same width as the bed, or of lesser width. The liquid- absorbing layer 4 is surrounded, at its ...

1. A process of coal gasification in which coal, as a principal primary material, is introduced directly into a fluidized bed into the lower part of which oxygen and water vapour are blown, ash being recovered in the molten state at the bottom of the bed, whilst the products, on emerging, are successively directed to one or more devices for separating fines and gases, the fines being recycled to t...

SE REIVINDICA MEDIANTE ESTA PATENTE UN SISTEMA DE OPINOMETROS, CONJUNTO DE APARATOS CONECTADOS A TRAVES DE LA RED TELEFONICA CONMUTADA A UN ORDENADOR DE COMUNICACIONES, QUE CONSTAN DE UNIDAD DE ALIMENTACION, UNIDAD DE CONTROL, UNIDAD DE MEMORIA, DETECTOR DE DESCOLGADO, DETECTOR DE CORRIENTE DE LLAMADA, MODEM, CONMUTADOR DE LINEA, VISUALIZADOR Y TECLADO, CUYA APLICACION BASICA ES LA CAPTACION AUTOM...

PROCEDIMIENTO DE MEDIDA DEL ESTADO ELECTRICO DEL AISLAMIENTO ENTRE ESPIRAS DE UN ARROLLAMIENTO DE UNA MAQUINA ELECTRICA DE ALTA TENSION, QUE COMPRENDE LAS SIGUIENTES ETAPAS: -MEDIR LA FRECUENCIA PROPIA DEL ARROLLAMIENTO; -DETERMINAR POR UNA PARTE POR ESPIRA DEL ARROLLAMIENTO QUE SE EXAMINA LA RESISTENCIA R, EL COEFICIENTE DE AUTOINDUCCION 1 Y LA CAPACIDAD C; -DETERMINAR POR OTRA PARTE POR ESPIRA L...

A blended hydraulic cement composition, curable at low temperatures, including temperatures below the freezing point of water, is composed of portland cement, slag, pozzolans including metakaolin, and admixtures including potassium carbonate and water reducing compositions. The cement is particularly useful in producing concrete compositions which achieve high strength in a brief period of time, a...

The invention relates to a motor vehicle head lamp in which a reflecting paraboloid accommodates a light source which is arranged essentially along its optical axis and which is partially screened outwardly by a screening device. The latter preferably consists of plastic material and has a surface, facing the light source and the apex of the paraboloid, which is at least partially provided with to...

This invention concerns a nonwoven fabric having knuckle-free planar surfaces comprising parallel linear machine direction yarns (10) residing in a single plane and interconnecting, cross-machine direction polymeric material (18) also residing in said plane and substantially entirely surrounding the machine direction yarns (10), the cross-machine direction material containing spaced apertures in t...

A process for preparing dermatan sulphate (DS) of pharmaceutical purity from animal organs rich in mucopolysaccharides (MPS), by: (a) stabilizing the fresh organs by freezing them either as such or in the form of powder, (b) micronizing the material containing the MPS with an aqueous CaCl2 solution, (c) digesting the homogenate comprising the raw material and the CaCl2 with proteolytic enzymes at ...

Medical devices and methods employing semipermeable materials, such as acrylic copolymers, polyurethane isocyanate, and other biocompatible semipermeable polymers, are disclosed for use as guidance channels in regenerating nerves. The devices can be formed by tubular semipermeable conduits adapted to receive the ends of a severed or damaged nerve. The tubular conduits define lumens through which a...

Compounds of formula (I) wherein R represents a hydrogen atom or a silyl group; R<1> represents a methyl, ethyl or isopropyl group; Y<1> is -CH2-, Y<2> is -CH- and X represents -C(R<2>)(R<3>)-[where R<2> represents a hydrogen atom or a group OR<6> (where OR<6> is a hydroxy group or a substituted hydroxyl group having up to 25 carbon atoms) and R<3> represents a hydrogen atom, or R<2> and ...

Compounds of formula (I) and salts thereof, wherein R is a C1-4 alkyl group, R<1> is a methyl, ethyl or isopropyl group; and OR<2> is a hydroxyl or substituted hydroxyl group having up to 25 carbon atoms. These compounds may be used for controlling insect, acarine, nematode or other pests.

Compounds of formula (I) and salts thereof, wherein R<1> represents a methyl, ethyl or isopropyl group; R<2> represents a C2-7 alkyl group interrupted by an oxygen or sulphur atom or an aryl, aryl C1-7 alkyl or heteroaryl C1-7 alkyl group; OR<3> is a hydroxyl group or a substituted hydroxyl group having up to 25 carbon atoms; and the group =NOR<2> is in the E configuration. These compounds ...

A process for preparing the compound of formula (I) which comprises treating the corresponding 23 alpha - compound sequentially with (i) oxalyl chloride and (ii) 2-mercaptopyridine-N-oxide, a catalytic amount of an organic base, and a thiol.

A process for preparing a compound of formula (I) (where (i) R<1> is an ethoxy group and R<2> is a hydrogen atom, (ii) R<1> is a hydrogen atom and R<2> is a bromine atom or (iii) (R<1> and R<2> together with the carbon atom to which they are attached represent >C=O) which comprises stereoselectively reducing the corresponding 5-keto compound.

A process is described for preparing a compound of formula (I) (in which R<1> represents a methyl, ethyl or isopropyl group, R<2> represents a hydrogen atom or a methyl or acetyl group and R<3> represents a hydrogen atom, or OR<2> and R<3> together with the carbon atom to which they are attached represent the group >C=0) which comprises treating a corresponding 23 alpha - compound with a tr...