Abstract: The invention provides a method and apparatus for facilitating calibration of a nuclear gauge by automating the movement of a source rod between a plurality of source rod positions. The apparatus can include a linearly moveable member, such as a threaded rod, a motorized linear actuator, such as a stepper motor, and a source rod grip attached to the linearly moveable member for affixing the source rod to the member.

Abstract: Bipolar lipids are described which are able to form complexes with polyanions. The lipids comprise a cationic head linked to a hydrophobic backbone and a hydrophilic tail and are capable of self assembly to form stable complexes in aqueous solutions. The lipids are of particular use for the delivery of bioactive substances such as nucleic acids to cells in vitro and especially in vivo.

Abstract: A process for transitioning between two catalysts is disclosed, comprising the steps of a) discontinuing the feed of the first catalyst into the polymerization reactor, and then b) introducing the second catalyst into the reactor, wherein one of the catalysts comprises a late transition metal catalyst and the other is a catalyst which is incompatible therewith. It is preferred that the late transition metal catalyst is a 2,6-diacetyl pyridine iron catalyst.

Abstract: Methods and apparatus are provided for adjusting a throttle of a vehicle engine. The apparatus comprises an input sensor configured to provide an input signal having a value that approximately corresponds to an operating level of the vehicle engine requested by an operator and a memory configured to store a maximum input value for the input sensor. The maximum input value provides the value of the input signal that approximately corresponds to a maximum operating level of the vehicle engine. The apparatus is further configured to receive the input signal and access the memory to retrieve the maximum input value and further configured to update the maximum input value with the value of the input signal if the value of the input signal is greater than the maximum input value.

Abstract: A system for recording and assessing a person's inherited risk for disease. The system comprises a server for communicating with a communication device used by the person. The server comprises a risk assessment program that performs a risk assessment process. The process comprises the steps of: querying the person for family history information, receiving family history information inputted by the person, generating a family tree diagram based on the received family history information, transmitting the diagram to the communication device, querying the person for family medical history information concerning members of the person's family, receiving the family medical history information, generating a family medical tree diagram based on the received family medical history information, transmitting the diagram to the communication device, receiving a request to generate a risk assessment report, generating the risk assessment report, and transmitting it to the communication device.

Abstract: The present invention relates to transition metal compounds and to polymerization catalyst systems employing said transition metal compounds.

Abstract: A polyethylene having the following properties: an annealed density D/weight average molecular weight Mw relationship defined by the equation D>1104.5Mw−0.0116, and a Charpy Impact I/High Load Melt Index H relationship defined by the equation I>35.OH−0.4. Also, a polyethylene film having the following properties: a density of at least 957 kg/m3; a Dart Impact of at least 130 g; and a polydispersity of less than 12. Both may be made using a tridentate nitrogen-containing transition metal polymerization catalyst.

Abstract: Enamide derivatives of formula (1) are described: 1

Abstract: A computer user interface device is provided, made up of modules having separate sets of user interface features. For instance, a keyboard device has a first module bearing standard alphanumeric and control keys, and a second module, selected from a set of optional modules bearing specialized features such as multimedia controls, communication interfaces, or magnetic media readers. The modules are mechanically coupled together. An electrical interface allows user input signals, such as keystroke signals, to be consolidated on one module, preferably the specialized module, into a single signal stream, for coupling to the computer.

Abstract: Enamine derivatives of formula (1) are described: 1

Abstract: A polymer blend is disclosed which comprises a blend of

Abstract: The present invention provides a modular data storage system that allows a user to arrange various data storage module configurations within a single system enclosure. More specifically, the inventive system provides a program key and a connection extender having a configuration knob. Once the appropriate connection extender is coupled to a data storage module, the program key of the system enclosure will only accept a certain connection extender configuration into a bay slot. If data storage module connection is successful, the extender will create a thermal breezeway between the data storage drive and a receptive circuit board connector to reduce the operating temperature of the connected data storage module.

Abstract: A frequency synthesizer for producing a tunable frequency output signal. The synthesizer includes a tunable frequency oscillator having a tunable output signal and including: a voltage controlled oscillator (VCO) for generating an output signal; a harmonic generator coupled to the VCO for generating a plurality of harmonics of the VCO output signal; and a tunable bandpass filter coupled to the harmonic generator and having an output for selectively passing any one of the VCO output signal harmonics which constitutes both the tunable output signal of the tunable frequency oscillator and the tunable frequency output signal of the frequency synthesizer.

Abstract: A maintenance method for periodically maintaining the operating condition of an exhaust gas recirculation valve for controlling recirculation of internal combustion engine exhaust gas from an exhaust gas path to an engine intake air path in which the valve is periodically driven to a maximum open position and then back to an initial position, such as a closed position when engine operating conditions are such that there is no driveability or emissions penalty associated with such valve maintenance and when sufficient battery drive voltage is available to drive the valve as required for maintenance thereof.

Abstract: A temporally-pipelined predictive encoder/decoder circuit for encoding or decoding an input signal containing a sequence of data frames received at a particular frame rate and frame data rate into an output signal having an equal frame rate employs a plurality of N predictive encoders/decoders. An input buffer may be used to extract the information for each data frame in the input signal and supply such information to a corresponding one of the encoders/decoders at rate of 1/N of the particular frame data rate. Each encoder/decoder generates corresponding encoded/decoded information as it is received as well as provides digitized frame information to the encoder/decoder processing the next received image frame. The encoded/decoded information is provided to corresponding frame buffers which temporarily store such information.

Abstract: A means and method of controlling a plurality of energy beams with at least one of the plurality of beams. At least one first beam set produces special interference with at least one second beam set, at a first location(s), diverting energy from both beam sets to a second location(s), where energy does not appear from one . . . or either, of the inputs in the absence of interference. By selecting the timing, levels, phases, frequencies, and interconnection of multiple controllers, a multitude of useful energy beam circuits are able to be made . . . such as: gated amplifiers, cascaded amplifiers, gated oscillators, phase demodulators, active filters, inverters, inverted filters, limiters, threshold detectors . . .

Abstract: A simplified business form including a return postcard overcomes the problems of ease of use by recipient in a construction including first and second superimposed plies 10, 12 of which at least one 10 is of card stock like that employed in postcards. Glue or folds 16, 18, 24, 26; 72 join the peripheries of the plies 10, 12 to hold the same in substantial abutment with each other and a closed line of weakening 42 is located in one ply 10 and defines the periphery of return postcard 52. A franking designation or stamp receiving area 68 is located on the one ply 10 on the side thereof facing the other ply 12 within the closed line of weakening 42.

Abstract: A mailing piece for use in mass mailings including an envelope having insert material 26 within the envelope. An index mark 76 on the insert 26 are correlated with index openings 64, 66, 68 on the front 22 of the envelope so that, for example, the answers to questions disposed in areas 58, 60, 62 on the insert may be displayed to the recipient of the mailer through a window 56 in the front 22 of the envelope upon alignment of the index mark 76 with the index openings 64, 66 and 68 with such answers corresponding to questions located in areas 70, 72 and 74 associated with each index opening 64, 66 and 68.