Abstract: An electrophotographic photosensitive member comprising (a) a substrate made of an electrically conductive material, (b) a silicide layer formed on the surface of the substrate, and (c) a photoconductive layer superposed on the silicide layer being composed chiefly of amorphous silicon; which is usable for copying machines and intelligent copying machine.

Abstract: A dry cement composition containing an amount of ferrous sulphate (FS) for eliminating or substantially reducing the content of water-soluble chromate, is produced by grinding a starting material (C, G) in a cement mill, and the ground cement material is passed from the mill to a storage container (33) The ferrous sulphate in an amount of 0.01-10 and preferably 0.4 percent by weight is added to and mixed with the starting material in a dry or non-dissolved condition at a location or at locations upstreams of the storage container (33). The ferrous sulphate is preferably added to the starting material upstream of the cement mill.

Abstract: An electrochemical measuring electrode device (10) for polarographically measuring the partial pressure of oxygen in an electrolytic medium comprises a cathode (14) which is capable of reducing oxygen and defines an exposed oxygen-reducing cathode surface (20), an anode (18), which defines an exposed anode surface which is arranged relative to the exposed oxygen-reducing cathode surface so as to communicate electrolytically therewith through the electrolytic medium, and a membrane (24), which covers the exposed oxygen-reducing cathode surface and further defines an electrolyte chamber (22) in which the electrolytic medium is confined. In order to effectively promote the decomposition of H.sub.2 O.sub.2 generated in the electrolytic medium as an oxygen reduction intermediate and thereby reduce the response time of the electrode, a stable, non-biological catalytic means is provided catalytically communicating with the H.sub.2O 2.

Abstract: Two components, trypsin and kallidinogenase, in human urine are concentrated simultaneously by allowing human urine at neutral pH, collecting bubbles thus formed to obtain the concentrate of the two components, adjusting the concentrate to weak acidity, contacting the acidified concentrate with chitosan to allow the two components to be adsorbed onto chitosan, eluting the components from the adsorbent with aqueous ammonia solution, and neutralizing and heating the eluate at about 60.degree. C. for about 10 hours to make the eluate virus-free, followed by separating the components from the eluate.

Abstract: Process for producing sintered aluminum nitride bodies, comprising sintering a relatively impure aluminum nitride powder comprising at least 95% by weight aluminum nitride and having no more than 3% bound oxygen content, no more than 0.6% metal or metal compound impurities, and no more than 0.5% silicon or carbon impurities, the sintering being carried out by heating the aluminum nitride body from room temperature to the sintering temperature at a rate of no more than 250.degree. C. per hour; introducing an inert gas containing from 1 to 4% by volume hydrogen until the temperature reaches 1200.degree. C.; continuing to introduce solely an inert gas as the temperature is further increased to the sintering temperature; sintering the body at a sintering temperature of from 1600.degree. to 1900.degree. C.; and cooling the sintered body at a rate of no more than 300.degree. C. per hour.

Abstract: Novel 5-halopyridine-3-carboxamide compounds having the general formula (I) ##STR1## or salts thereof wherein R is hydrogen atom or a group of --(CH.sub.2).sub.n --R.sub.1 wherein n is an integer from 1 to 4 and R.sub.1 is hydrogen atom, hydroxy group, lower alkoxy group, mercapto group, lower alkylthio group, amino group, di-lower alkylamino group, C.sub.1-11 alkyl group, lower alkenyl group, lower alkynyl group, cycloalkyl group, 5- or 6-membered heterocyclic group or aryl group which may be substituted by one or two substituents of halogen, lower alkyl or lower alkoxy;R.sub.2 and R.sub.3 are, the same of different, hydrogen atom, halogen atom, cyano group, nitro group, amino group, lower akyl group, halogenated lower alkyl group, hydroxy group, lower alkoxy group, aryloxy group, carboxy group or lower alkoxycarbonyl group;X is halogen atom; which compounds possess growth inhibitory activities and also anti-inflammatory activity.

Abstract: The invention relates to a method and an apparatus for feeding a plurality of untethered animals at their respective feeding places in the same enclosure. During each feeding period portions of fodder each not exceeding a few mouthfuls and preferably not substantially exceeding one mouthful are supplied to each feeding place, and the portions are supplied at such time intervals that the rate of fodder supply to the feeding place substantially corresponds to the desired eating rate of each of the animals. Preferably a portion of dry fodder and a corresponding portion of liquid are supplied simultaneously to each feeding place. The portions of fodder are preferably supplied successively to the various feeding places, and the portions may be metered by a rotor arm having a free end extending radially through an annular slot communicating with a fodder reservoir.