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Methods, compositions and articles of manufacture involving cationic conjugated conformationally flexible polymers are provided. A method for the synthesis of cationic water-soluble polymers with linkages along the polymer main chain structure which disrupt the ability of the polymers to form extended-rod structures is provided. Such polymers may serve in the fabrication of novel optoelectronic devices and in the development of highly efficient biosensors. The invention further relates to the application of these polymers in assay methods.

The present invention is a robotic mobile platform vehicle that can be thrown into hostile or hazardous environments for gathering information and transmitting that information to a remotely located control station and a system comprising the robotic mobile platform. The system of the invention is adapted to provide it's operator with significant information without being exposed directly to actual or potential danger. One of the key features of the invention is that at least four imaging assemblies are mounted on the robotic platform and that the system has the processing ability to stitch the views taken by the four imaging devices together into an Omni-directional image, allowing simultaneous viewing of a 360 degree field of view surrounding the mobile platform. Another feature is that the system comprises a touch screen GUI and the robotic mobile platform is equipped with processing means and appropriate software. This combination enables the user to steer the robotic platform simply by touching an object in one of the displayed images that he wants to investigate. The robotic platform can then either point its sensors towards that object or, if so instructed, compute the direction to the object and travel to it without any further input from the user.

Disclosed are DNA segments encoding <DEL-S DATE="20010821" ID="DEL-S-00001">hyaluronic acid synthase which are employed to construct recombinant cells useful in the production of hyaluronate synthase or hyaluronic acid (HA)<DEL-E ID="DEL-S-00001"> <INS-S DATE="20010821" ID="INS-S-00001">the recombinant DNA segment identified in FIG. 5. <INS-E ID="INS-S-00001">In preferred aspects, chromosomal DNA from Streptococcus equisimilis is partially digested with EcoRI and the resultant fragments are ligated to form recombinant vectors. These vectors are useful in the transformation of host cells such as E. coli and or Streptococcal hosts. <DEL-S DATE="20010821" ID="DEL-S-00002">Resultant transformants are screened by the novel screening assays to identify colonies which have incorporated HA synthase DNA in a form that is being actively transcribed into the corresponding HA synthase enzyme. These colonies may be selected and employed in the production of the enzyme itself or its product, HA.<DEL-E ID="DEL-S-00002"> <INS-S DATE="20010821" ID="INS-S-00002">The recombinant DNA segment identified in FIG. 5 is then inserted into a recombinant Streptococcal host for the production of hyaluronic acid (HA).<INS-E ID="INS-S-00002">

Disclosed herein are cerium doped, garnet phosphors emitting in the yellow region of the spectrum, and having the general formula (Y,A)₃(Al,B)₅(O,C)₁₂:Ce³⁺, where A is Tb, Gd, Sm, La, Sr, Ba, Ca, and/or Mg, and substitutes for Y, B is Si, Ge, B, P, and/or Ga, and substitutes for Al, and C is F, Cl, N, and/or S, where C substitutes for O. Relative to a solid-state-reaction method, the instant co-precipitation methods provide a more homogeneous mixing environment to enhance the distribution of the Ce³⁺ activator in the YAG matrix. Such a uniform distribution has the benefit of an increased emission intensity. The primary particle size of the as-prepared phosphor is about 200 nm, with a narrow distribution.

An economical, compact guide for introducing multiple bends in one or more planes in a pipe, conduit, or other tube-like item. The guide has a gauge section rotatably attached to a mounting section and is affixable by means of a non-deforming clamp to the end of a pipe segment to be bent. The gauge section has a bend-angle gauge and a bend-plane level. The bend-angle gauge is a plumb arm mounted so as to measure and indicate the bending of a pipe to any degree of bend. The bend-plane guide is a 360° level mounted on an upper face of the plumb arm. Multiple bends are made in the pipe segment without removing or re-aligning the guide. This ensures that the initial reference position is maintained throughout the bending process and ensures that all bends are in the proper bend-plane, thus avoiding "dogging" between successive bends. Multiple successive bend-planes also may be established without removing or re-aligning the guide on the pipe, by rotating the gauge section of the guide relative to the mounting section by the magnitude of the desired out-of-plane angle.

A structure is provided which includes first and second layers. The first and second layers are attached to each other by embedding or otherwise attaching at least one mechanically locking z pin to the first layer and then subsequently joining the protruding portion of the z pin to the second layer prior to the second layer being processed to a fully cured state. Alternatively, the z pin material is injected into a cavity formed in the first and second layer and then brought to a fully cured state. The z pin may have physical characteristics such as orientation, melting point and hardness as a function of the physical characteristics of the first and second layer and the forces subjected upon the first and second layers. For example, the z pin may define a longitudinal axis and be embedded within the first and second layers in alignment with an applied force subjected on the first and second layers. This ensures that the z-pin is subjected primarily to tensile forces which allows designs to better control the failure mode of the attached first and second layers.

Materials for organic electronic devices including organic photovoltaic devices. An oligomer or polymer comprising:

wherein R₁, R₂, R₃, and R₄ are independently hydrogen or solubilizing groups. Monomers and ink compositions can be also prepared. The materials can be used in an OPV active layer and show excellent absorption properties with bathochromic shift.

A system for use by a physically impaired driver for controlling a vehicle includes an actuator assembly operably coupled to the pedals. The actuator assembly includes a pair of electrical motors operable through a rack and linkage arrangement to depress the brake pedal, and a third electric motor operable through a rack and linkage arrangement to depress the accelerator pedal. The actuator assembly is pivotably mounted above the pedals to pivot when the brake pedal is depressed. A joystick controller is mounted to the vehicle and includes a platform with a grip and arm supports. The joystick controller is operable in a fore-aft direction to control braking and acceleration, and can be tilted side-to-side to operate the vehicle turn signals. The joystick controller includes features for keeping the controller clear of dust and debris and for channeling wiring associated with the turn signals.

A lightweight structural concrete with screw-ability and nail-ability similar to wood is composed of a non-structural and ultra lightweight aggregate such as expanded perlite or a combination of expanded perlite and polystyrene beads of a particular size distribution and volume amount, entrained air cells of another specific size distribution and volume amount, and dense cementitious composition of a cement binder, a fine grade structural filler no larger than concrete sand grade, a pozzolan, and optional micro-fibers for reinforcement. This structural concrete matrix is optimized to hold 13 gauge T-nails and bugle head wood screws with thread ranging from 8 to 11 threads per inch and diameter of 0.10″ to 0.137″. The resulting concrete will have consistent screw-ability and nail-ability similar to that of wood.

A beehive includes a column of stacked boxes which open onto each other at their tops and bottoms, with the column bearing a cap at its top and a floor at its bottom. The boxes have access ports for ingress and egress of bees, and the column is suspended above the ground on a support post which bears a pivot such that the column can be tipped from a vertical orientation to a horizontal orientation for easy maintenance. Bars, frames, and/or screens may be hung within and atop the boxes to promote desired comb-building behaviors, with bees tending to build comb downwardly from higher boxes into lower boxes. At desired times, upper boxes bearing honey may be removed from the column and lower boxes bearing brood may be rotated to the top of the column so that the bees continuously propagate down the column.

A high temperature convection fan device that improves the operation of an oven is provided. Each oven convection fan device component is designed to withstand the harsh environment and elevated temperatures common to an oven. Sources of energy include but are not limited to wind-up springs and/or drawing electric power from the oven lamp socket. Other solutions provide additional features including but not limited to lighting, sensors, control systems and/or displays.

An electron beam enhanced nitriding system that passes a high-energy electron beam through nitrogen gas to form a low electron temperature plasma capable of delivering nitrogen ions and radicals to a substrate to be nitrided. The substrate can be mounted on an electrode, and the substrate can be biased and heated.

A torque measuring device for determining properties such as viscosity, shearing force or concentration in liquids or suspensions. The device comprises two elastically connected concentric axles in the form of one external hollow axle through which an inner measuring axle extends, and an element responsive to the measured medium located on a distal end of the measuring axle. The axles are individually propelled by electrical motors. The motors are operated such that the axles rotate at generally constant speed and, simultaneously, the phase between the two are controlled irrespective of applied speed and torque. The torque is measured through the degree of load of the motor propelling the inner axle, which is provided as an output signal.

An ink container for an inkjet cartridge comprises spaced apart side walls, a front wall, a rear wall and a bottom wall, and a partition dividing the interior into three ink chambers. Each chamber includes an outlet port in the bottom wall, and the front wall and bottom wall lie in generally perpendicular planes, and a planer guide wall extends between and at an angle to the front and bottom walls. Each chamber contains a block of ink absorbent material and a felt filter pad between the corresponding block and outlet port, and the container further includes a cover having a flat upper surface provided with serrations to enhance gripping the container.

A novel rotatable seating arrangement for a motorized watercraft has an integral console with instrumentation and watercraft controls thereon to allow the watercraft's operator to control operation of the watercraft from one location, and to perform other functions, such as fishing without obstruction from the console and from the same position while retaining the ability to control the watercraft. The seating arrangement has a generally upright pedestal fixed to the watercraft's deck and a platform pivotally mounted atop the pedestal. A seat is fixed to the platform for supporting the operator in an upright seated position, the seat and platform being rotatable about a longitudinal axis of said pedestal to make available to the operator a 360 degree viewing area while operating the watercraft from the seated position. A locking system on the platform engages the pedestal for controlling rotation of the seat. A control console for carrying watercraft instrumentation and controls is fixed to the rotateable platform adjacent the seat within reach and view of the operator to allow operation of the watercraft while seated. The control console includes a left side portion to the left side of a seated operator and a right side portion to the right side of a seated operator, which side portions are located just above the height of the base of the seat to avoid interfering with the seated operator's use of hand-held equipment. An engine throttle and shift controller is located on the left or right side portion, and a steering controller is located on the other side portion, to allow the operator to operate the watercraft in the seated position regardless of the rotation of the seat.