Abstract:
Adenosine and xanthine derivatives, and compositions comprising those compounds, are potent selective agonists and antagonists of adenosine receptors. The derivatives and compositions are used to treat conditions, including certain cardiac arrhythmias.
Abstract:
The invention provides DNA homologous to a disclosed sequence which encodes a fruit ripening-related enzyme. Such DNA is incorporated into DNA constructs which are transformed into plants to increase or decrease expression of the related gene. This provides a method for modifying fruit-ripening characteristics.
Abstract:
Dicitrate cyclic diester (dicitrate) is a novel compound which is found in patients who do not exhibit symptoms or predisposition to idiopathic renal calculous disease. Dicitrate can be isolated and detected by novel chromatographic methods. Further, treating patients prophylactically and therapeutically with dicitrate cyclic diester can prevent or reduce the effects of calcification-related disease, including some types of kidney stones, or other disease or condition associated with the presence of metal ions. The metal ion complexing properties exhibited by dicitrate are also applicable to the use of the subject compounds as chelating agents and methods of binding, and thereby reducing, the amounts of metal ions in a substance.
Abstract:
This invention relates to methods for transforming arthropods with exogenous DNA. The methods are useful for arthropods that have not previously been amenable to DNA-mediated transformation, and also provide a simpler and more efficient means of transforming arthropods than have previously been described. The method involves microinjecting a nucleic acid sequence encoding a desired trait into the reproductive tract of a female arthropod before oviposition.
Abstract:
The subject invention pertains to materials and methods useful for management of certain pests. The invention is particularly well suited for the control of social insect pests and, particularly, termites. The invention concerns unique toxicant-containing matrices as well as apparatuses for monitoring pest activity and presenting a toxicant. The invention is useful as part of an Integrated Pest Management Program and can greatly reduce the introduction of harmful chemicals into the environment.
Abstract:
A system for the non-invasive monitoring of the hydration state of a plant comprising the elements: a timing capacitor comprising a plurality of conductive elements (100) adapted for mounting on a plant part (TREE) to sense the hydration state capacitance of the plant part; a capacitance-to-frequency converter electrically connected to the timing capacitor and providing the timing capacitor with an electrical potential said converter comprising an oscillator circuit having a frequency dependent upon the value of the timing capacitor and independent of the electrical losses in said timing capacitor; means for supply electrical power to the capacitance-to-frequency converter; means for measuring the frequency generated by the capacitance-to-frequency converter, the frequency bearing a known relationship to the dielectric constant and, hence, the water content of the plant part; and devices for electrically guarding conductive elements from capacitance extraneous to the plant part comprising means (106) for surrounding the conductive elements with shields having electrical potential substantially equal to that of the timing capacitor.
Abstract:
Synthesis of desferrioxamine B and analogs and homologs thereof beginning with O-protected, N-protected hydroxylamine, which is N-alkylated to produce a protected N-4-cyanoalkylhydroxylamine which is acylated with a suitable anhydride. The resulting half-acid amide is subjected to a series of high yield condensations and reductions which provide desferrioxamine B in high overall yield. Alternatively, polyether analogs of desferrioxamine B can be prepared by reacting an activated polyether with the O-protected, N-protected hydroxylamine and subjecting the resulting product to a series of similar steps.
Abstract:
The present invention is drawn to a device and process for killing cockroaches, which employ: a receptable (11, 12) defining at least one opening (15, 16) dimensioned to permit entry of a cockroach; and an amount of contact cockroach toxicant (18) effective to kill at least one cockroach, and an amount of cockroach attractant (17) effective to lure an adult cockroach, both of which one retained in said receptable (11, 12) in a spatial configuration such that a cockroach must come into contact with the toxicant (18) in order to reach (i.e. get to, or arrive at) the attractant (17). The instant invention may combine high acitivity fast-acting contact toxicant(s) (18) with a cockroach attractant(s) (17), in a manner which overcomes the previously encountered problem of a loss of attraction due to the presence of the toxicant (18).
Abstract:
Method which, after concentration of a feed juice from about 65° Brix to about 80° Brix, involves applying a shear of sufficient magnitude and duration to prevent the formation of a high methoxyl gel in the juice concentrate.
Abstract:
Novel plasmids comprising genes which code for the alcohol dehydrogenase and pyruvate decarboxylase are described. Also described are recombinant hosts which have been transformed with genes coding for alcohol dehydrogenase and pyruvate. By virtue of their transformation with these genes, the recombinant hosts are capable of producing significant amounts of ethanol as a fermentation product. Also disclosed are methods for increasing the growth of recombinant hosts and methods for reducing the accumulation of undesirable metabolic products in the growth medium of these hosts. Also disclosed are recombinant host capable of producing significant amounts of ethanol as a fermentation product of oligosaccharides and plasmids comprising genes encoding polysaccharases, in addition to the genes described above which code for the alcohol dehydrogenase and pyruvate decarboxylase. Further, methods are described for producing ethanol from oligomeric feedstock using the recombinant hosts described above. Also provided is a method for enhancing the production of functional proteins in a recombinant host comprising overexpressing an adhB gene in the host. Further provided are process designs for fermenting oligosaccharide-containing biomass to ethanol.