A method and kit for determining the amount of ammonia in a body fluid. The method and kit involve contacting the fluid with glutamate dehydrogenase, alpha-ketoglutarate and nicotinamide hypoxanthine dinucleotide phosphate and determining the amount of ammonia present in the fluid.

A blood serum sample useful as a calibration baseline comprising a natural blood matrix is disclosed. This serum sample contains less than an HPLC-detectable amount of cortisol. Also disclosed is a serum sample containing less than HPLC-detectable amounts of cortisone and corticosterone and less than RIA-detectable amounts of testosterone, androstenedione, progesterone, DHEA sulfate and 17-OH progesterone. A method of preparing such a serum sample is also disclosed.

A method of maintaining and/or enhancing tissue or plasma levels of glutathione is provided. Treatment of a mammal with a supranormal amount of glutamine, or a glutamine equivalent, prevents the reduction in tissue glutathione levels associated with exposure of the mammal to a compound capable of oxidative injury to the tissue. Such compounds may be drugs such as chemotherapeutic agents. Administration of a supranormal amount of glutamine or a glutamine equivalent after exposure of a mammal to a...

This invention relates to unsaturated polyester resins having reduced smoke levels and/or flame spread. The invention comprises incorporating particulate organic carboxylic acid into a polyester resin. Preferably the resin is a fire-retardant formulation and the presently-preferred carboxylic acid employed in particulate form is fumaric acid.

Apparatus for matching a student's reading level to particular book readability comprising two series of distinctive corresponding symbols, with one of the first series assigned to a student on the basis of his reading level and one of the second series to each book on the basis of its reading difficulty, identical symbols of the two series indicating that a particular book meets the reading level of the student.

A rack for a switching cabinet having vertical frame pieces. The vertical frame pieces have two protruding fastening elements, both of which contain a fastening section which is mounted parallel to the associated outer edges of the rack and a profiled side which is vertical to the associated outer edges of the rack. The fastening section and the profile edges have rows of fastening cavities spaced at equal distances from each other. This invention provides greater opportunity for mounting built-...

The current invention relates to a method for increasing levels of acetylcholine comprising administering to a mammal in need thereof, an effective amount of a compound of formula (I), and optionally an AChE inhibitor. ##STR1##

A preset security level system and a method for utilizing the preset security level system. The system includes a plurality of security levels, each of which enables a different level of security. Each of the security levels has associated therewith security features, such that low security level features are associated with a low security level, etc. The system and method enable a system administrator to select a desired security level, which selection automatically results in the activation of...

The present invention is directed to increasing levels of acetylcholine by the administration of 2-aryl-3-aroylbenzo[b]thiophenes.

In a method of colour printing using arrays of threshold value for interpolating between grey levels, the threshold values for each of the colours are provided by defining rows of threshold values, with each row having the same repeating sequence but offset. The repeating sequences are different for each colour but the offset is the same for all colours. The arrays best take the form T.sub.ij.sup.c =(i*p.sup.c -j*q.sup.c)%(r.sup.c S).