Abstract: A curriculum is created aligned closely to the state standards. This is broken down into tiny units called factoids, analogous to atoms in chemistry. The factoids are converted into question-and-answer pairs. These are placed on electronic flashcards so that they can be sorted according to the degree of mastery. There is a question on one side and an answer on the other. They are answered mentally. A user/student can choose from the options “Show again: Today, A, B, C, or Never” depending on his/her understanding of the question. A software system remembers each student as an individual and the status of each flashcard that the student has attempted to answer. There are five tiers in the classification system: school>year>subject>topic>and subtopic. A subtopic would contain from 10 to 100 flashcards depending upon the grade level.

Abstract: A curriculum is created aligned closely to the state standards. This is broken down into tiny units called factoids, analogous to atoms in chemistry. The factoids are converted into question-and-answer pairs. These are placed on electronic flashcards so that they can be sorted according to the degree of mastery. There is a question on one side and an answer on the other. They are answered mentally. A user/student can choose from the options “Show again: Today, A, B, C, or Never” depending on his/her understanding of the question. A software system remembers each student as an individual and the status of each flashcard that the student has attempted to answer. There are five tiers in the classification system: school> year> subject> topic> and subtopic. A subtopic would contain from 10 to 100 flashcards depending upon the grade level.

Abstract: A conditioning composition comprising from 60 to 80% by weight of a mineral source, from 20 to 40% by weight of basalt, from 2 to 5% by weight of a bonding agent, from 1 to 20% by weight of a mixed colloidal mineral source and an amount of catalyst provided in the ratio of at least one half liter of catalyst to at least 20 liters of water per 10 ton of composition. A catalyst for use with a conditioning composition, the catalyst comprising water, calcium nitrate, molasses, phosphoric acid and at least one non-ionic surfactant, each being provided in the following amounts (w/w):______________________________________ water 30 to 60% calcium nitrate 2 to 40% urea 30 to 70% molasses 3 to 35% phosphoric acid 3 to 35% non-ionic surfactant 1 to 10%.

Abstract: A torsional vibration damper (1) has an input assembly (2,6,7) and a reactor plate (25) with coil springs (40) circumferentially spaced about a center axis of the damper to absorb vibration between the input assembly and reactor plate. Each coil spring (40) includes a plurality of active coils (50) and partial end coils (44). The active coils have a pitch greater than the diameter (d) of the wire (11) and the partial end coils have a pitch equal to the diameter of the wire. A flattened arcuate surface (42) is formed on the partial end coil which spans less than a full coil turn. A distal tip (46) of the end coil has a thickness that is a fraction of the diameter of the wire that is inversely proportional to the amount of arcuate flattened surface of the end coil section. The gap (66) between the tip and the adjacent coil is also inversely proportional to the amount of arcuate spanning surface of the end coil section.

Abstract: A self lubricating replacement bearing assembly for supporting a rotating axle shaft within an axle housing containing axle lubricant. The rotating axle shaft includes an annular worn portion and an annular unworn portion. The bearing assembly is comprised of an annular sleeve member positioned in sealing engagement with the axle housing, and a plurality of bearing elements radially positioned on the inside annular surface of the annular sleeve member and positioned to engage the unworn portion or the axle shaft, and a single lip seal member fitted to the inner annular surface of the sleeve member and engageable with the rotating shaft to seal the rotating shaft within the axle housing and to retain the axle lubricant within the bearing assembly.

Abstract: A process for preparing 3-4-cis-.beta.,.beta.-(4)-substituted and 3-4-trans,.beta.,.alpha.-(4)-substituted azetidinones is provided. Also provided are novel 4,4-disubstituted azetidinones.

Abstract: A self lubricating replacement bearing assembly for supporting a rotating axle shaft within an axle housing containing axle lubricant. The rotating axle shaft includes an annular worn portion and an annular unworn portion. The bearing assembly is comprised of an annular sleeve member positioned in sealing engagement with the axle housing, and a plurality of bearing elements radially positioned on the inside annular surface of the annular sleeve member and positioned to engage the unworn portion or the axle shaft, and a single lip seal member fitted to the inner annular surface of the sleeve member and engageable with the rotating shaft to seal the rotating shaft within the axle housing and to retain the axle lubricant within the bearing assembly.

Abstract: A ball games table comprises a table top demountably fixed to a table base, the top being boarding with sheeting forming a playing surface stretched over its upper surface: one of the boarding and sheeting being water impervious. The sheeting may comprise a plurality of sheets each covering the boarding, at least one of which is water impervious; the boarding itself may be water impervious. The use of rubber sheeting is described as is canvas or tarpaulin sheets with one or more plastics sheets positioned between the sheet and the boarding. The boarding may be a number of separate parts, held together by the sheeting (and optionally hinged together), and rigidly interconnected as the table is assembled. The abutting edges of the parts of the top may extend in different directions and be non-linear; following meandering, wavey or zig-zag paths, when the table is assembled.

Abstract: A drive hub for a torque converter lock-up clutch and damper assembly wherein a one-piece hub provides radial location for the driving and driven members and a pressure seal to provide the requisite pressure differential across the clutch pressure plate for application of the clutch during torque converter use.

Abstract: The present invention relates to electrochemical reduction of a 3-chlorobenzo[b]thiophene to the corresponding 3-hydrobenzo[b]thiophene compound.

Abstract: N-substituted-2-(R)-(sulfinic acid)-3-(S)-(acylamino)-4-oxo-azetidines, which are useful as intermediates in 1-oxa .beta.-lactam antibiotics, are synthesized by electrolytic reduction of 7-(S)-acylamino-3-hydroxymethyl-3-cephem-4-carboxylic acid compounds.

Abstract: Compounds of the formula ##STR1## in which Y is hydrogen or hydroxyl, useful as intermediates in the production of antibiotics, are prepared by reacting a sulfinic acid of the formula ##STR2## with an oxidizing agent.

Abstract: This invention encompasses 7-(S)-acylamino-3-acetoxymethyl-3-cephem-4-carboxylic acid sulfones and the epimerization process for making them. The epimerization process employs an organic nitrogen base reagent having a pKa between about 9.0 to about 11.5. The compounds of this invention are intermediates in the synthesis of 1-oxa-.beta.-lactam antibiotics.

Abstract: 7-(S)-Acylamino-3-hydroxymethyl-3-cephem sulfones are disclosed. These compounds are intermediates in the synthesis of 1-oxa .beta.-lactam antibiotics.

Abstract: An azetidin-2-one-4-sulfinic acid represented by the formula ##STR1## is reacted with Pb(OAc).sub.4 in liquid SO.sub.2 containing CuII ion to provide isomeric cyclization products of the formulas ##STR2## wherein R is e.g. benzyl, phenoxymethyl, benzyloxy, diphenylmethoxy, and R.sub.1 is a carboxy-protecting group. The products of the process are useful intermediates for 1-oxa-.beta.-lactam antibacterials.

Abstract: N-substituted-2-(R)-(sulfinic acid)-3-(S)-(acylamino)-4-oxo-azetidines, which are useful as intermediates in 1-oxa .beta.-lactam antibiotics, are synthesized by electrolytic reduction of 7-(S)-acylamino-3-hydroxymethyl-3-cephem-4-carboxylic acid compounds.

Abstract: In an impact printer including a print wheel having a plurality of selectable character type bearing elements for respectively printing a plurality of characters, said print wheel being rotatable for selectively positioning selected type elements in successive print positions, impact means impellable against the selected elements to drive said elements against the printing medium and means for impelling the impact means against said selected type element, the present invention provides the improvement comprising the combination of means for sensing the flight time of the impelled impact means until impact by sensing variations in the velocity of said impact means, means for comparing the sensed flight time to a predetermined ideal flight time, and means for selectively varying the amplitude of the current to the impelling means to adjust the sensed flight time to equal the ideal flight time.

Abstract: Cephem compounds having only a hydrogen at the 3-position are prepared by electrolytic reduction of 3-chloro or 3-sulfonyloxy cephems.

Abstract: Deesterification of cephalosporin p-nitrobenzyl esters by electrolytic reduction.