Abstract: A method of producing a virus-like particle (VLP) in a plant is provided. The method comprises introducing a first nucleic acid into the plant, or portion of the plant. The first nucleic acid comprising a first regulatory region active in the plant operatively linked to a nucleotide sequence encoding one or more rotavirus structural protein for example but not limited to rotavirus protein VP2. The nucleotide sequence may further comprise one or more than one amplification element and/or a compartment targeting sequence. A second nucleic acid might be introduced into the plant, or portion of the plant. The second nucleic acid comprises a second regulatory region active in the plant and operatively linked to a nucleotide sequence encoding one or more rotavirus structural protein, for example but not limited to rotavirus protein VP6. Optionally, a third nucleic acid and/or fourth nucleic acid might be introduced into the plant, or portion of the plant.

Abstract: A polynucleotide encoding the amino acid shown in SEQ ID NO:2 or SEQ ID NO: 5, or encoding an amino acid sequence having not less than 98% identity thereto; preferably a polynucleotide comprising replacement of the amino acid corresponding to glutamic acid at position 1202 of SEQ ID NO:2 (position 177 of SEQ ID NO:5) with glycine, replacement of the amino acid corresponding to glutamic acid at position 1056 (position 31 of SEQ ID NO:5) with valine, and replacement of the amino acid corresponding to alanine at position 2199 (position 1174 of SEQ ID NO:5) with threonine.

Abstract: A polynucleotide encoding the amino acid shown in SEQ ID NO:2 or SEQ ID NO: 5, or encoding an amino acid sequence having not less than 98% identity thereto; preferably a polynucleotide comprising replacement of the amino acid corresponding to glutamic acid at position 1202 of SEQ ID NO:2 (position 177 of SEQ ID NO:5) with glycine, replacement of the amino acid corresponding to glutamic acid at position 1056 (position 31 of SEQ ID NO:5) with valine, and replacement of the amino acid corresponding to alanine at position 2199 (position 1174 of SEQ ID NO:5) with threonine.

Abstract: A polynucleotide encoding the amino acid shown in SEQ ID NO:2 or SEQ ID NO: 5, or encoding an amino acid sequence having not less than 98% identity thereto; preferably a polynucleotide comprising replacement of the amino acid corresponding to glutamic acid at position 1202 of SEQ ID NO:2 (position 177 of SEQ ID NO:5) with glycine, replacement of the amino acid corresponding to glutamic acid at position 1056 (position 31 of SEQ ID NO:5) with valine, and replacement of the amino acid corresponding to alanine at position 2199 (position 1174 of SEQ ID NO:5) with threonine.

Abstract: An electronic device such as a cellular phone is described in which a storage device stores a table including a plurality of pairs of a luminance level and settable lighting time period for a display unit. The electronic device checks whether a lighting time of the display unit set by a user satisfies a predetermined settable lighting time period, and corrects the lighting time so as to satisfy the predetermined settable lighting time period when detecting the deviation.

Abstract: According to one aspect of the invention, there is provided a mobile apparatus including: a display; an input module; a timer configured to output a first signal representing that a first time elapses since the input module is last operated, and to output a second signal representing that a second time elapses since the input module is last operated, the first time being different from the second time; a display control module configured to disable a display on the display when the first signal is received; and an input control module configured to disable an input at the input module when the second signal is received.

Abstract: An information processing apparatus includes: a running section configured to run a multimedia player; a time measuring section configured to measure an elapsed time from a time point when a state related to the running section is transferred to a BGM playing state; a determination section configured to determine whether or not the elapsed time measured by the time measuring section corresponds to a given time; and a stop section configured to stop the running of the multimedia player when the determining section determines that the elapsed time corresponds to the given time.

Abstract: A high-frequency quartz crystal unit includes a quartz crystal blank having a hole defined in at least one principal surface thereof, providing a resonating region in a portion of the crystal blank which is made thinner by the hole, excitation electrodes disposed respectively on opposite principal surfaces of the crystal blank in the resonating region, extension electrodes extending respectively from the excitation electrodes to respective first and second positions on an outer peripheral portion of the crystal blank, and a casing. The crystal blank has a fixed end electrically and mechanically connected to the casing by eutectic alloy in the first position. The crystal blank has a free end on which the extension electrodes are electrically connected to the casing by wire bonding in the second position.

Abstract: A surface-mount quartz crystal oscillator has a casing having a recess defined therein, a quartz crystal blank fixedly mounted on the bottom of the recess, and an IC (Integrated Circuit) chip having an integrated oscillating circuit connected to the crystal blank. The casing has a frame wall which defines the recess. The IC chip has an outer peripheral edge joined to an upper surface of the frame wall. The crystal blank is hermetically sealed in a space surrounded by the casing and the IC chip. IC connecting terminals are disposed on the upper surface of the frame wall for connection to IC terminals on the IC chip.

Abstract: A temperature-compensated crystal oscillator has a mounting substrate for surface-mounting, a crystal oscillator, a temperature compensating circuit for compensating for frequency vs. temperature characteristics of the crystal oscillator, and a frequency adjusting circuit for adjusting an oscillating frequency of the crystal oscillator. The crystal oscillator comprises at least a crystal blank, an IC chip which is electrically connected to the crystal blank and constitutes an oscillating circuit together with the crystal blank, and a surface-mount housing accommodating the crystal blank and the IC chip. The surface-mount housing is mounted on the mounting substrate. Components constituting the temperature compensating circuit and components constituting the frequency adjusting circuit are directly mounted on the mounting substrate.

Abstract: A high-frequency quartz crystal unit includes a quartz crystal blank having a hole defined in at least one principal surface thereof, providing a resonating region in a portion of the crystal blank which is made thinner by the hole, excitation electrodes disposed respectively on opposite principal surfaces of the crystal blank in the resonating region, extension electrodes extending respectively from the excitation electrodes to respective first and second positions on an outer peripheral portion of the crystal blank, and a casing. The crystal blank has a fixed end electrically and mechanically connected to the casing by eutectic alloy in the first position. The crystal blank has a free end on which the extension electrodes are electrically connected to the casing by wire bonding in the second position.

Abstract: Excellent remedies for hepatitis C which contain as the active ingredients a 3′-deoxy-3′-fluorouridine derivatives and a 1-(3′-deoxy-fluoro-&bgr;-L-ribofuranosyl)uracil derivative and show little side effects.

Abstract: A surface-mount quartz crystal oscillator has a casing having a recess defined therein, a quartz crystal blank fixedly mounted on the bottom of the recess, and an IC (Integrated Circuit) chip having an integrated oscillating circuit connected to the crystal blank. The casing has a frame wall which defines the recess. The IC chip has an outer peripheral edge joined to an upper surface of the frame wall. The crystal blank is hermetically sealed in a space surrounded by the casing and the IC chip. IC connecting terminals are disposed on the upper surface of the frame wall for connection to IC terminals on the IC chip.

Abstract: A temperature-compensated crystal oscillator has a mounting substrate for surface-mounting, a crystal oscillator, a temperature compensating circuit for compensating for frequency vs. temperature characteristics of the crystal oscillator, and a frequency adjusting circuit for adjusting an oscillating frequency of the crystal oscillator. The crystal oscillator comprises at least a crystal blank, an IC chip which is electrically connected to the crystal blank and constitutes an oscillating circuit together with the crystal blank, and a surface-mount housing accommodating the crystal blank and the IC chip. The surface-mount housing is mounted on the mounting substrate. Components constituting the temperature compensating circuit and components constituting the frequency adjusting circuit are directly mounted on the mounting substrate.

Abstract: A signal reproducing system for use in an optical disc player comprises a photodetector including at least first and second photodetecting elements which are so disposed that a beam spot is formed on the first and second photodetecting elements by a light beam caused to impinge upon and reflected at an optical record disc and are aligned along a direction of movement of a diffraction pattern appearing in the beam spot in accordance with a record track on the optical record disc, a phase shifter for varying at least a phase of one of first and second output signals obtained respectively based on detection outputs of the first and second photodetecting elements, a switch for causing the first and second output signals selectively to pass through the phase shifter in response to a direction of movement of the record track in relation to the light beam incident upon the optical record disc, and a mixer operative to add one of the first and second output signals derived from the phase shifter to the other of the f

Abstract: Described is a method and a recording apparatus whereby audio and video signals can be recorded on a plurality of recording tracks on the same recording medium. A series of temporarily consecutive audio signals can be recorded across a plurality of tracks. On at least the audio track, information signals including the leading track number, the next following track number and the number of the video track bearing the corresponding video signals, are recorded. The track number data of the information signals on these audio tracks are written in corresponding positions of a digital, table memory. These control code data are recorded on a predetermined control track on the recording medium such that a series of desired audio signals and the corresponding video signals can be selectively reproduced smoothly and promptly by first reading the control track and then reproducing the audio and video tracks in accordance with the control code data information.

Abstract: A digital conversion system for a color video signal comprising a system which selectively converts an analog composite color video signal and analog primary color video signals to digital signals includes: a matrix circuit (17) which forms a luminance signal and first and second color difference signals from the input analog primary color video signals; and a switching circuit (18) which converts the first and second color difference signals to a sequential color difference signal. A switch (28) selects the luminance signal from the matrix circuit (17) or the input NTSC analog composite color video signal. A first analog to digital converter (41) receives an output from the switch (28); and a second analog to digital converter (42) receives the sequential color difference signal.

Abstract: The present invention comprises a signal generator which uses digital memory for generating a digital signal which has a value which periodically varies with a memory having 2.sup.n addresses in each of which data for one period of the digital signal is stored and includes a circuit for multiplying a digital control input having a variable value by a predetermined coefficient and includes an integrator for integrating the control input multiplied by said coefficient at every predetermined clock signal so as to produce an address signal for said memory and said address signal varying step by step at a predetermined number of intervals corresponding to said digital control input.

Abstract: A non-linear digital emphasis circuit for non-linearly emphasizing a high frequency component of an input digital video signal in accordance with an amplitude of the digital video signal. This emphasis circuit comprises: a digital filter for emphasizing the high frequency component of the digital video signal; and a memory in which a data conversion table to non-linearly compress the amplitude of the digital video signal is written and to which the digital video signal is supplied as an address input. The respective polarities of the address input of the memory and of the readout output therefrom are inverted by a polarity inverter in accordance with the polarity of the digital video signal. With this emphasis circuit, an error of the frequency characteristic and time and temperature changes thereof are not caused and no adjustment of the characteristic is needed. Also, this circuit can be formed as an integrated circuit by utilizing only digital circuits.

Abstract: Color video still picture playback apparatus enhances the quality of a color still picture reproduced from a video record medium. The reproduced signal is formatted as one field of video containing a succession of lines with first and second color difference signals provided in alternating line sequence. The reproduced picture, after processing, is formatted as alternating first and second fields, each having a plurality of lines such that the lines of the second field are interpolated between successive lines of the first field, and the color difference signals are provided as continuous signals, with interpolated signals being provided in alternate lines. To achieve this, first and second switches operated at the field rate are associated with first and second delay lines of one-half-line and one line delay times, respectively, and an adder circuit connects the outputs of the delay lines to one input of the second switch.