Novel polymers are provided which are produced by recombinant techniques. The polymers are characterized by having a small repeating sequence which provides for strands capable of associating, resulting in useful structural characteristics, where the strands are joined by turns or loops which are flexible and available for interaction with the environment. Specifically, repeating groups of natural...

A susceptor for heating a food substance in a microwave oven is disclosed which has a thin film of metal deposited on a dimensionally stable dielectric substrate, such as paper. Substrate having a rough surface may be used. Preferably, the susceptor has a complex impedance measured prior to heating, at the frequency of the microwave oven, which has a real part between 30 and 2000 ohms per square. ...

Novel 13-spiro-2'-[tetrahydrofuran]-milbemycins of the formula I (I) in which X represents one of the groups -CH(OR1)-, -C(=O)- or -C(=N-OH)-; R1 represents hydrogen or a OH-protecting group; R2 represents methyl, ethyl, isopropyl or sec.-butyl or the group -C(CH3)=CH-A in which A represents methyl, ethyl or isopropyl; and R3 represents hydrogen; C1-C10-alkyl; C1-C10-alkyl substituted by...

The invention relates to a three phase separator which comprises a compartment for the substantial separation of the gas-phase, this compartment being equipped with at least one partition (10) which is applied for an internal gaslift circulation.

Anthracycline glycoside compounds of general formula I: wherein NH2 @ means that the NH2 substituent may be in an axial or equatorial configuration, R1 is hydrogen or a hydroxy group and R2 is hydrogen or a methoxy group, and their pharmaceutically acceptable acid addition salts, are antitumor agents.

PCT No. PCT/FR85/00197 Sec. 371 Date Apr. 18, 1986 Sec. 102(e) Date Apr. 18, 1986 PCT Filed Jul. 18, 1985 PCT Pub. No. WO86/00906 PCT Pub. Date Feb. 13, 1986.The process comprises the action of a saturated aliphatic or cycloaliphatic alcohol or an aliphatic or cycloaliphatic alcohol comprising a double ethylenic bound not situated in alpha of the hydroxyl group with an aldose, aldoside or polyaldo...

Sodium N-acetylneuraminate trihydrate herein provided is represented by the following formula: The sodium N-acetylneuraminate trihydrate can be prepared, for instance, according to a method which comprises the steps of: dissolving sodium N-acetylneuraminate in water or in a mixture of water and an organic solvent; allowing the resulting solution to stand; precipitating and separating the re...

The invention relates to the chemical modification of the sphingoid parts of glycosphingolipids. It has been possible by a series of reactions to introduce an amino group in the position of the carbon double bond in the sphingoid part after elimination of the long-chain aldehyde. Glycosphingolipids of the formula (2) and (3), where X and Y is a group capable of coupling, are suitable for coupling ...

There are disclosed both one- and two-dimensional, high resolution, brushless DC servomotors that are linear, rotary, planar and cylindrical in nature. All of these employ a capacitive method for deriving the required position and motor commutation information. In suitable circumstances, particularly two-dimensional planar motors on air bearings, the method allows the use of the motor ferromagneti...

The present invention is directed to several multisubstrate adduct inhibitors of glycinamide ribonucleotide transformylase (GAR TFase; E.C. 2.1.2.2), a folate-requiring enzyme of de novo purine biosynthesis. The compounds of the present invention will be useful to provide anti-gout and/or anti-neoplastic therapeutic agents or will serve as potentiators for other such agents. The most prefeffed, po...

Process for the specific synthesis of dithiocarbamic acid esters by substituting hydroxylated sites on mono- or polyhydroxylated molecules; products obtained by this process and their applications. Process for preparing esters of dithiocarbamic acids having the formula (I), in which R1 and R2 are saturated or unsaturated alkyl radicals, substituted or not with carbon-containing groups or heteroato...

A method for the detection of an analyte of interest in a sample, which method comprises the steps of: (1) forming a composition comprising (a) a sample, (b) at least one substance selected from the group consisting of (i) added analyte of interest or an analog of the analyte of interest, (ii) a binding partner of the analyte of interest or its said analog, and (iii) a reactive component capable o...

In a pipe connection, the special feature consists of an opposing bearing piece, which is fitted in the interior of the pipe to be connected and is provided with opposing bearing surfaces, and of a clamping device, provided on the outer side of the pipe, which has pressure surfaces which interact with the opposing bearing surfaces of the opposing bearing piece. In the process for manufacturing thi...

A hydrocarbon feed is pyrolyzed by direct contact between the feed and solid particles, which are passed through a dilute phase transport reactor, in plug flow, with the feed and solids being passed through the pyrolysis zone in either horizontal flow or downward flow.

A method and apparatus for winding yarn to produce a wound yarn package (40) having a variable density profile. The variable density profile in the wound yarn is produced by variably tensioning the yarn during the winding process by an electrical apparatus which is responsive to a programmed control signal to provide variable tension on the yarn. The density profile thus produced is preferably a p...

A high strength silicon carbide monofilament which has a core and a stoichiometric bulk layer of silicon carbide deposited on the core having an exterior surface and a core bulk layer interface, the bulk layer having an average grain size of less than 200 nanometers which size varies continuously across the cross section of the bulk layer, the variation comprising a first average grain size at the...

A device has an elongated body with a through longitudinally extending passage. An inflatable cuff is provided intermediate the ends of the body, and an inflatable vessel is secured to one end of the body and communicates with the passage. The cuff is mounted for movement on the body and a tube is rigidly and sealingly secured therein for receiving an instrument. An extension of the tube may be pr...

A method of producing self-supporting ceramic bodies (12) having a polymer component, which includes first providing a self-supporting ceramic body (12) comprising (i) a polycrystalline oxidation reaction product formed upon oxidation of a molten parent metal with an oxidant, and (ii) interconnected porosity (13) at least partially accessible from one or more surfaces of said ceramic body. The pol...

PURPOSE:To improve interlaminar adhesivity, to prevent oxidation of the surface of mold and film separation and to mass produce high-precision optical glass element by forming an AlN film through an intermediate layer of Al or Ti on the surface of super hard alloy. CONSTITUTION:Fine granule or powder of WC is blended with Co powder as a binder and sintered. Then the surface of super hard alloy com...

This invention relates to a liquid composition comprising (A) a major amount of a fluorine-containing hydrocarbon, and (B) a minor amount of soluble organic lubricant free of acetylenic and aromatic unsaturation and comprising a cyclic compound characterized by the following structure (I) wherein R is H, a hydrocarbyl group, or -R2COOR1, X is O or NR3, Y is CHR4, C=O, C=NR5, R1 is H or...