Abstract: The invention provides methods of detecting West Nile virus and oligonucleotide reagents derived from a West Nile virus consensus sequence that are useful in the methods of the invention.

Abstract: The present invention relates to a method for detection and/or genetic analysis of HBV in a biological sample, comprising hybridizing the polynucleic acids of the sample with a combination of at least two nucleotide probes, with said combination hybridizing specifically to a mutant target sequence chosen from the HBV RT pol gene region and/or to a mutant target sequence chosen from the HBV preCore region and/or to a mutant target sequence chosen from the HBsAg region of HBV and/or to a HBV genotype-specific target sequence, with said target sequences being chosen from FIG.

Abstract: The invention provides a method for detecting the presence of altered serum proteins in an Hepatitis B Virus (HBV)-infected patient with liver inflammation, comprising: obtaining a sample of serum from the patient; subjecting the sample to protein gel electrophoresis to separate proteins contained therein; staining proteins separated on the electrophoresis gel with silver nitrate solution; scanning the images of stained proteins into an image analysis scanner to obtain gel images; comparing the gel images to control samples of electrophoresis gels prepared from serum of normal patient and serum of HBV-infected patient with liver inflammation to determine whether the sample of serum from the patient contains specific serum proteins. This invention also provides serum protein biomarkers for the diagnosis of patients with HBV infection and liver inflammation.

Abstract: A display-responsive learning apparatus that includes a moveable display panel supported in a housing. The display panel includes a front opaque panel attached to circuit board having a plurality of light-emitting diodes (LEDs). A sensor is positioned behind the moveable display panel. In response to a user moving the display panel, the sensor provides a signal to a controller to provide one of a plurality of pre-programmed visual representations to the user. The visual representations include illuminating various patterns of the LEDs that show a successive series of letters of the alphabet, a successive series of numbers, or a smiling face with lips that move in combination with an output of audio sounds from a speaker. The enhanced interactive display panel and visual displays provide an improved method for educational learning and increases its play value.

Abstract: A system is tested for jamming resistance by supplying a simulated jamming ignal. The simulated jamming signal is produced by calculating a propagation path loss in the terrain between the system under test and a location where the jammer would be, predicting a jamming level in accordance with the propagation path loss, and generating a simulated jamming signal. The simulated jamming signal is supplied to the antenna port of the system under test. The testing does not require the use of either a real jammer or a pilot signal generator at the location where the jammer would be.

Abstract: An in-flight simulator for an integrated aircraft survivability equipment system controlling radar warning receiver and a radar jammer with countermeasures control provides a training module which emulates the existence of airborne threats. The airborne threats are provided in real time as if they were detected by a threat detection system such as a radar warning receiver or a radar jammer. A list of threats is provided for either a radar warning receiver or pulse radar jammer, a continuous radar jammer, an RF/IR missile approach detector or a laser that threat on a display, includes that threat in a candidate list and executes various threat proximity algorithms with the candidate list. The invention determines whether the threat is within the range hidden by terrain or beyond the horizon. The threat simulator performs aircraft survivability equipment sensor model simulation. Threats are also prioritized.

Abstract: An in-flight radar warning receiver training system for use with a radar warning receiver (RWR) includes a real on/off switch for switching real threat track file data to a formatter. A generator produces threat/RWR simulated threat track file data. A merge operator combines formatted real threat data with the threat/RWR simulated threat track file data to form a combined threat track file. A prioritization method orders the combined threat track file data into prioritized threat track file data which is routed to a symbol generator, an audio/voice generator, and a memory for storing threat events having an input connected to the priority data output.

Abstract: An electronic countermeasure (ECM) simulator that is particularly adaptable or use in missile fire control system vulnerability studies. A general purpose digital computer is utilized to control the simulation of true target radar skin return signals and ECM signals. These ECM signals would be representative of those produced by attacking and stand-off aircraft carrying deception and obscuration jamming.

Abstract: An injection timing control device of the present invention has a timer cover opened at one end and including at the other an end wall portion. The end wall portion of the timer cover is formed with hole concentric with the axis, and a gear driven by an engine, is provided at the outside surface of the end wall portion. In the time cover is disposed a timer hub concentric to the axis. The timer hub can be inserted into the hole, and has a cam boss connected at one end to the fuel injection pump cam shaft and a flange formed integrally with the other end side of the cam boss.

Abstract: A test system (10) for a laser rangefinder (12, 14) having signal transmission and reception paths comprises a thick lens collimator (20) which receives energy (18) from a transmitter (12) for input through an optical fiber (32). The fiber has a partial reflector (34) and a full reflector (38) to simulate sites of targets, and the reflected energy is transmitted back through collimator (20) to a receiver (14). Partial reflection of energy is provided by gold (64) placed on a surface (53) of one of two aligned and spaced termini (32a, 32b) of fiber (32).

Abstract: An automatic minimum discernible signal level analyzer for evaluating the low signal level detecting capabilities of a pulse-type receiver and including an RF frequency source phase-locked to the radar transmitter frequency and capable of being adjusted in power output by circuitry which automatically measures the statistical noise content of the receiver video and adjusts the power output of the RF source so that the video signal meets preset values of probability of false alarm and probability of detection, the absolute RF power being then a direct measure of the minimum discernible signal sensitivity of the receiver under test.