Abstract: A peptide has any one of the sequences SEQ ID NO.1 to SEQ ID NO.8, or has a sequence derived from any one of the sequences SEQ ID NO.1 to SEQ ID NO.8 by substitution, deletion or addition of one or several amino acids therein and having an osteogenetic activity.

Abstract: An object of the present invention is to further increase the speed of tilt control while suppressing a useless tilt control operation. Values of focus bias voltages (reference bias values V1 to V6) at a plurality of radial positions P1 to P6 are obtained and stored using a reference disk with a high flatness precision. Prior to a recording and reproducing operation, the values of focus bias voltages (Fo bias values vs1 to vs6) at the radial positions P1 to P6 are obtained, and each of tilt amounts T1 to T6 at the respective radial positions is obtained from a differential value between the reference bias value and the Fo bias value at each radial position. During recording/reproduction, a radial position Pn placed immediately before the recording/reproducing position is detected. Then, tilt control is performed with a tilt amount Tn at the radial position Pn being set as the tilt amount at the recording/reproducing position.

Abstract: A crystal structure of PYK2 is described that was determined by X-ray crystallography. The use of PYK2 crystals and strucural information can, for example, be used for identifying molecular scaffolds and for developing ligands that bind to and modulate PYK2.

Abstract: A magneto-optical disk apparatus generates magnetic field onto a magneto-optical recording medium prior to recording signals in the magneto-optical recording medium having a recording layer and a reproduction layer, by use of magnetic field and laser beam. The magneto-optical apparatus then adjusts a position of a magnetic head that generates the magnetic field, under a state where the laser beam is irradiated, by utilizing that an irradiation spot of the laser beam deviates due to eccentricity of the magneto-optical recording medium. This position adjustment is carried out based on, for example, a beam position signal showing the irradiation spot of the laser beam and/or a detection signal which is detected after the laser beam is modulated by the magnetic field.

Abstract: An optical fiber characterized by a dispersion of not less than 2 ps/nm/km and not more than 10 ps/nm/km at a wavelength of 1550 nm, an effective area of 65 ?m2 or more at a wavelength of 1550 nm, a positive dispersion slope at a wavelength of 1550 nm, a zero dispersion wavelength outside the wavelength range of 1400 nm to 1460 nm, an absolute value of dispersion of not less than 2 ps/nm/km and not more than 10 ps/nm/km at a wavelength of 1400 nm, a cutoff wavelength of 1400 nm or shorter, and a transmission loss of 0.40 dB/km or less at a wavelength of 1400 nm is provided. By using the optical fiber of the present invention, the WDM transmission both in the 1.55 ?m wavelength band and in the wavelength range between 1400 nm to 1460 nm is realized.

Abstract: The present invention provides smooth and adequate recording/reproducing on a recording medium employing a biodegradable material as a substrate material. The present invention relates to storing on a recording medium, information, structure, or the like indicating that a substrate is formed of a biodegradable material. When the present invention is applied to CD, CD-R, and CD-RW, identification information indicating a substrate formed of a biodegradable material is included in a free area of TOC data in a lead-in area shown in FIG. 4. An optical disc apparatus reads the identification information to identify whether or not a disc loaded into the apparatus has a substrate of a biodegradable material.

Abstract: An optical fiber characterized by a dispersion of not less than 2 ps/nm/km and not more than 10 ps/nm/km at a wavelength of 1550 nm, an effective area of 65 &mgr;m2 or more at a wavelength of 1550 nm, a positive dispersion slope at a wavelength of 1550 nm, a zero dispersion wavelength outside the wavelength range of 1400 nm to 1460 nm, an absolute value of dispersion of not less than 2 ps/nm/km and not more than 10 ps/nm/km at a wavelength of 1400 nm, a cutoff wavelength of 1400 nm or shorter, and a transmission loss of 0.40 dB/km or less at a wavelength of 1400 nm is provided. By using the optical fiber of the present invention, the WDM transmission both in the 1.55 &mgr;m wavelength band and in the wavelength range between 1400 nm to 1460 nm is realized.

Abstract: A peptide has any one of the sequences SEQ ID NO.1 to SEQ ID NO.8, or has a sequence derived from any one of the sequences SEQ ID NO.1 to SEQ ID NO.8 by substitution, deletion or addition of one or several amino acids therein and having an osteogenetic activity.

Abstract: A highly corrosion-resistant material and a corrosion-resistant member which are improved in corrosion resistance, adhesion, contact electrical resistance, electrical conductivity, airtightness, etc. and are suitable for use as, e.g., a metallic separator for polymer electrolyte fuel cells (PEFC); and a process for producing them. A thin noble-metal layer is formed on the desired part of the surface of a metallic base and then subjected to compression working. The coated base may further be subjected to anticorrosive treatment with a liquid phase containing a peroxide or ozone or with an active gas atmosphere.

Abstract: A magneto-optical disk apparatus generates magnetic field onto a magneto-optical recording medium prior to recording signals in the magneto-optical recording medium having a recording layer and a reproduction layer, by use of magnetic field and laser beam. The magneto-optical apparatus then adjusts a position of a magnetic head that generates the magnetic field, under a state where the laser beam is irradiated, by utilizing that an irradiation spot of the laser beam deviates due to eccentricity of the magneto-optical recording medium. This position adjustment is carried out based on, for example, a beam position signal showing the irradiation spot of the laser beam and/or a detection signal which is detected after the laser beam is modulated by the magnetic field.

Abstract: A magneto-optical record medium and a reproducing apparatus for the same allow data reproduction having good characteristics by a simple structure. The magneto-optical record medium includes a plurality of first grooves (3) each having sidewalls, at least one of which is wobbled in accordance with address information; an address mark (21) formed by changing a width of a land located between second grooves connected to the first grooves; and third grooves wobbled cyclically, formed in a data portion magnetically storing data and connected to the second grooves. The reproducing apparatus reproduces the data from the magneto-optical record medium.

Abstract: A peptide has any one of the sequences SEQ ID NO.1 to SEQ ID NO.8, or has a sequence derived from any one of the sequences SEQ ID NO.1 to SEQ ID NO.8 by substitution, deletion or addition of one or several amino acids therein and having an osteogenetic activity.

Abstract: Various conditions such as the power of a pulse beam for recording emitted from an optical head to a magneto-optical recording medium, the power of continuous light in reproduction, the intensity of the magnetic field applied from a magnetic head, the phase difference between the magnetic field applied from the magnetic head and the pulse beam emitted from the optical head, and the equalizer coefficient of an equalizer are optimized based on the error rate of a reproduced signal by actually recording a signal to a magneto-optical recording medium and reproducing the recorded signal. A signal is recorded and/or reproduced to/from a magneto-optical recording medium according to the optimized conditions. A control circuit provides control of a servo circuit, an equalizer, a laser drive circuit and a magnetic head drive circuit.

Abstract: A peptide has at least an amino acid sequence represented by SEQ ID NO:1 and it has an osteogenetic activity.

Abstract: A highly corrosion-resistant material and a corrosion-resistant member which are improved in corrosion resistance, adhesion, contact electrical resistance, electrical conductivity, airtightness, etc. and are suitable for use as, e.g., a metallic separator for polymer electrolyte fuel cells (PEFC); and a process for producing them. A thin noble-metal layer is formed on the desired part of the surface of a metallic base and then subjected to compression working. The coated base may further be subjected to anticorrosive treatment with a liquid phase containing a peroxide or ozone or with an active gas atmosphere.

Abstract: The present invention provides a recording medium and an information recording/reproducing apparatus which permit recording and/or reproducing by a laser beam of optimized power for each recording medium. The recording medium is provided with a calibration region in addition to an information recording region. The calibration region has wobbles formed such that the amplitude of the waveform of a reproduced signal therefrom can change. Prior to recording to the information recording region, a signal is recorded in the calibration region by changing the laser power, and the recorded signal is immediately reproduced. The waveform of the reproduced signal is evaluated to determine optimum laser power for recording. At the time of reproducing, a signal previously recorded in the calibration region is reproduced while changing the laser power, and laser power optimum for reproducing is determined.

Abstract: In a magneto-optical recording medium comprising a recording layer and a reproducing layer, a transfer layer and a magnetic shielding layer are successively formed between the recording layer and the reproducing layer respectively. The reproducing layer is prepared from Gd33(Fe70Co30)67 changing from an in-plane magnetization film to a perpendicular magnetization film at 150° C., for example. The transfer layer is prepared from Gd28(Fe90Co10)72 changing from an in-plane magnetization film to a perpendicular magnetization film at 50° C., for example. The magnetic shielding layer is prepared from SiN, for example. The recording layer is prepared from Tb20(Fe90Co10)80 whose saturation magnetization is maximized around the transition temperature of 50° C. of the transfer layer. A signal can be directly recorded in the recording layer with no magnetic influence from the reproducing layer.

Abstract: A disk medium, an information recording device, and an information reproducing device are provided, which are capable of efficiently recording sub-information such as security data and, if the sub-information is set as the security information, enhancing a security performance. The disk is divided into a plurality of zones in radial directions. A logical zone count in each zone is obtained by dividing a total recordable frame count in each zone by a frame count in a unit logical zone.

Abstract: Disclosed is an optical fiber, which comprises a core and a clad of a two-layer structure including an innermost layer and an outermost layer, and has a refractive index distribution structure satisfying the conditions of 0.8% ≦&Dgr;1≦1.3 % and−0.7 % ≦&Dgr;2≦−0.4%, and also satisfying the conditions of −20≦D≦0, −0.1≦S<0 and 0≦(D/S)≦200 in a specified wavelength band having a band width of at least 20 nm in a 1.5 &mgr;m wavelength band.

Abstract: At least two layers of coating materials are applied to the periphery of a silica-based optical fiber to fabricate a coated optical fiber. This coated optical fiber has durability against a proof test of 1.38 GPa or more through the entire length thereof and also has 1.4 N or less of a coating strip force required for removing coating from the silica-based optical fiber. Thereby, when a proof test applying an elongation of 2% or more is conducted, the coating can be prevented from delaminating from the optical fiber and workability in removing the coating also becomes excellent. The coated optical fiber preferably makes a coated optical fiber for components.