Abstract: A method for converting organic solid waste into humic products and the corresponding apparatus, in which a preliminary aerobic fermentation of the organic solid waste is performed, followed by a second aerobic fermentation of the organic waste in the presence of specific microorganisms in order to provide a basic precursor on which the selective metabolization occurs of specific bacterial strains to provide the humic product.

Abstract: A toner comprised of pigment, and a polyimide-imine resin of the formula ##STR1## wherein m, and n represent the number of monomer segments; X is independently selected from the group consisting of a tetravalent aromatic, polyarylomatic or cycloaliphatic group with from about 6 to about 20 carbon atoms and a cycloaliphatic group; R is independently selected from the group consisting of alkylene, oxyalkylene and polyoxyalkylene; and R' is independently selected from the group consisting of alkyl, alkylene and arylene.

Abstract: A method for retarding the growth of wood-degrading fungi by treating the wood with an effective amount of viable, nonsporulating Streptomyces rimosus SC-36 NRRL 21063.

Abstract: Disclosed herein is a method of quantitatively measuring an oxidative substance with avoiding influences of a coloring-interfering substance in the quantitative measurement of the oxidative substance by using a triphenyl methane type leuco coloring matter as a coloring reagent. Disclosed herein is also such an oxidative quantitative measurement in which the coloring sensitivity can be further adjusted. In order to avoid the influences of the coloring-interfering substance, there is employed at least one kind of (i) uricase, (ii) an anionic surface active agent and (iii) a metal chelate compound. As the triphenyl methane type leuco coloring matter, use may be made of a compound of the general formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, which may be the same as or different from one another, represent a hydrogen atom or a lower alkyl group, and X.sub.1 and X.sub.2, which may be the same as or different from each other, represent a hydrogen atom, --SO.sub.3 M.sub.1, --COOM.sub.2, --O(CH.

Abstract: The manufacture of optically active compounds of the formula ##STR1## wherein R.sup.1 signifies alkyl, phenyl or benzyl and R.sup.2 signifies hydrogen or a customary ester residue,by the fermentative reduction of compounds of the formula ##STR2## wherein R.sup.1 and R.sup.2 have the above significance. The compounds obtained are valuable intermediates in organic syntheses.