Abstract: The present invention is directed to oral dosage forms for extended release, including a dosage form for pH independent extended release, of at least one drug to a subject. The present invention is also directed to methods of making and using the dosage forms to treat or prevent a subject for various conditions. Specific extended release formulations of crystalline clindamycin free base are also provided. The crystalline clindamycin free base oral formulations of the present invention provide a means for treating or preventing gram-positive bacterial infections with a minimal number of treatments per day, potentially, as little as once or twice per day.

Abstract: A variable motor (1) having reduced audible noise. This advantage is achieved by reducing or eliminating ripple torque by making the individual phase torques follow a certain profile, so that when the torques are summed, they are substantially constant. Therefore, the motor (1) back EMF is used as a reference waveform to control the winding currents to achieve reduced ripple torque. The back EMF reference is amplified and provided to the motor windings, and may be derived in a number of ways including use of sense windings, electronic derivation, and approximation by sensing the voltage applied to the windings.

Abstract: A process for the production of Portland cement and white Portland cement using magnesium furnace slag, a waste product from the manufacture of magnesium metal, as a primary starting material. The furnace slag is blended with calcium oxide and silicon dioxide to form a feedstock which is heated to a temperature and for an amount of time sufficient to form clinker. The clinker is cooled, ground to a powder, and blended the clinker with powdered gypsum to form the Portland cement. White Portland cement may be produced by removing iron containing compounds from the slag, minimizing contamination of the material by iron compounds throughout the process, and cooling the clinker in a manner that minimizes oxidation of any remaining iron compounds in the clinker.

Abstract: A method and apparatus for production of stator windings for dynamoelectric mechines of different configurations is provided. The windings are preferably formed on a bobbin (10) or similar article, which may then be transferred onto an appropriate carrier such as a ferromagnetic core (24). The core (24) may be provided as a substantial linear article and then be bent into an appropriate shape, so that the assembly may be provided as the stator of a dynamoelectric machine. In this configuration, only a portion of each winding will face the magnetic poles of the rotor and thus be operative, as the return path of the windings will not be used. However, the invention as disclosed also shows it is possible to build a drum rotor (39) with both external and internal rotors in order to make use of both portions of the windings on the ferromagnetic core (24).

Abstract: A method of forming a solid matrix for use with surface-enhanced Raman spectroscopy is described. The method comprises the steps of: admixing a colloidal metal solution with a polymeric support medium to form a suspension; optionally depositing said suspension on a surface; and then drying the suspension to form the matrix. The polymeric support medium provides a plymer/sol suspension in which the sol particles are resistant to aggregation and precipitation. Upon drying the suspension shrinks to provide a mechanically-hard film subsequently usable to provide a sample for spectroscopic analysis.

Abstract: A method of forming a solid matrix for use with surface-enhanced Raman spectroscopy is described. The method comprises the steps of: admixing a colloidal metal solution with a polymeric support medium to form a suspension; optionally depositing said suspension on a surface; and then drying the suspension to form the matrix. The polymeric support medium provides a plymer/sol suspension in which the sol particles are resistant to aggregation and precipitation. Upon drying the suspension shrinks to provide a mechanically-hard film subsequently usable to provide a sample for spectroscopic analysis.

Abstract: A discoidal brushless DC motor having a stator (507) carrying windings (503) arranged in slots which radiate out from the center of the stator to the periphery. The depth of each slot increases towards the center of the stator. The slot, therefore, is wider (from side to side) and shallower towards the periphery of the stator, and narrower (from side to side) and deeper towards the center of the stator. This arrangement ensures that the windings are contained below the surface (504) of the stator (507). The magnetic circuit includes a backing of a ferromagnetic material (509). This ferromagnetic material (509) can be a watch spring core made from a long strip of soft iron tape.

Abstract: A process for the production of Portland cement and white Portland cement using magnesium furnace slag, a waste product from the manufacture of magnesium metal, as a primary starting material. The furnace slag is blended with calcium oxide and silicon dioxide to form a feedstock which is heated to a temperature and for an amount of time sufficient to form clinker. The clinker is cooled, ground to a powder, and blended the clinker with powdered gypsum to form the Portland cement. White Portland cement may be produced by removing iron containing compounds from the slag, minimizing contamination of the material by iron compounds throughout the process, and cooling the clinker in a manner that minimizes oxidation of any remaining iron compounds in the clinker.

Abstract: Nucleophilic oxygen species, such as primary alcohols, carboxylates, and water, are added to vinyl epoxides in a highly regioselective and enantioselective manner, providing a convenient route to enantiomerically enriched 1,2-diols and oxygen-containing heterocycles. The reaction employs a chiral Pd(0) complex and a borane or borate as co-catalysts Also described are similar additions of nitrogen nucleophiles, and the addition of carbonates to vinyl epoxides using a chiral Pd(0) catalyst.

Abstract: A lancet device has a two part housing (1) integrally molded in a folded-out configuration with a spring (2), a lancet body (3) encasing a needle (4), and a needle cap (5) concealing the needle tip. The spring (2) is a zig-zag connected at one end to one housing part (7) by a web (19) and merging at the other end into the lancet body (3). This is folded over with the spring (2) about the web (19) into the housing part (7), and the other housing part (6) is closer over about web hinges (8) and fastened. A trigger (9) is incorporated in the other housing part (6) and is deformable inwardly to release the lancet body (3) from a catch arrangement (14, 21) which holds the lancet retracted with the spring energized. The needle cap (5) can be used for the retraction before being removed.

Abstract: A retaining wall construction comprising, in combination, a first block having a hollow interior and opposed side and opposed end walls, a recess formed in at least one of the end walls, and an anchor comprising a generally U-shaped member with a base and sides. The anchor is able to engage the recess with the base extending through the recess and a side extending into the hollow interior of the block. The retaining wall construction of the present invention is very stable and can be assembled to a greater stable height than is possible with conventional retaining walls.

Abstract: The invention provides an elongate member (10) usable inter alia as a fence post, formed to constant cross section by a suitable sheet metal roll forming process, the member when viewed in cross section having three arm sections (15, 16, 17) each of double sheet metal thickness radiating from a junction (18), two of the arm sections (15, 16) at their outer edges remote from the junction having their two sheet sections joined through an integral arcuate or other box-section formation (19, 20), while the third arm section (17) has a like formation (21) in which the free terminal edge (11) of one sheet section is contained within a terminal roll (22) of the other sheet section. When used as a fence post, apertures (14) may be provided along one arm section to receive wire, while the normally lower end (13) is pointed to facilitate driving into the ground.

Abstract: A modular float for forming a floating structure includes a top surface, a bottom surface and a plurality of sides connecting the top surface and the bottom surface. Each of the sides has a plurality of engagement structures extending therefrom. The engagement structures are spaced apart from each other by a plurality of receivers. The engagement structures and the side define the receiver. Each of the sides have a channel extending between the top surface and the bottom surface. The channel is sized to receive a joining device.

Abstract: A gas type fastener driver 1 is supplied with electric power from an external power source 55 through an electric cord 53. When a trigger 45 is pulled to turn a switch 47 on, the external electric power is supplied to an ignition plug 17 to burn gas in a combustion chamber 14. Combustion gas pushes a piston 11 forward to drive a nail n by a driving rod 12 connected to the piston 11.

Abstract: This invention relates to plain bearings in which a part-cylindrical journal shell and an end flange are made separately and are then assembled together. Axial location is provided by engagement of the flange in a groove in the back of the shell.

Abstract: 9-Benzoyl-3-hydroxymethyl-1,2,3,4-tetrahydrocarbazole and 9-benzoyl-3-(N-phenylcarbamoyloxymethyl)-1,2,3,4-tetrahydrocarbazole, having respectively antiinflammatory and antibacterial activities, and their preparation are described.

Abstract: 9-Benzoyl-3-hydroxymethyl-1,2,3,4-tetrahydrocarbazole and 9-benzoyl-3-(N-phenylcarbamoyloxymethyl)-1,2,3,4-tetrahydrocarbazole, having respectively antiinflammatory and antibacterial activities, and their preparation are described.

Abstract: Novel 4-R.sub.1 R.sub.2 NCH.sub.2 -9-benzyl-6-R.sub.3 -7-R.sub.4 -1,2,3,4-tetrahydrocarbazoles having antibacterial activity are disclosed. The compounds are prepared by the chemical reduction of the corresponding 4-R.sub.1 R.sub.2 NCO-9-benzyl-6-R.sub.3 -7-R.sub.4 -1,2,3,4-tetrahydrocarbazoles.