Abstract: The compound represented by the following formula (1): wherein A, B, R1, R2, R3 and Z are as defined in the specification is analogous to shogaol and gingerol useful in the fields of foods, medicines, quasi-drugs, cosmetics, etc., and more highly active in tyrosinase activity inhibition, etc. than shogaol and gingerol.

Abstract: The compound represented by the following formula (1): wherein A, B, R1, R2, R3 and Z are as defined in the specification is analogous to shogaol and gingerol useful in the fields of foods, medicines, quasi-drugs, cosmetics, etc., and more highly active in tyrosinase activity inhibition, etc. than shogaol and gingerol.

Abstract: In accordance with the invention, an industrial process for producing shogaols useful in the fields of for example foods, flavor, pharmaceutical products, qui-pharmaceutical products and cosmetics can be provided. The invention relates to novel intermediates represented by the following general formula and a process for producing shogaols from the intermediates. In accordance with the invention, shogaols can readily be produced, of which mass production has been difficult because shogaols have been produced only by the extraction process from a natural ginger. Intermediates; (in the formula (1), R1 represents hydrogen atom or methyl group; R2 represents optionally branched alkyl group with one to 18 carbon atoms; R3 and R4 each independently represents hydrogen atom, a lower alkyl group or a protective group of the phenolic hydroxyl group; A represents an alkylene group with one to 4 carbon atoms; and X represents benzenesulfonyl group or toluenesulfonyl group.

Abstract: The invention provides novel compounds with a chemical structure similar to that of gingerol useful as a component for foods, pharmaceutical products, cosmetics and the like. After intensive investigations, the inventors found the gingerol analogues represented by the following general formulae (1) and (2). Additionally, the inventors found that these compounds had excellent properties as an inhibitor of tyrosinase activity and an antioxidant. By using the following compounds of the invention as a component for cosmetics, for example, cosmetics suppressing the generation of speckles and spots can be produced. By using the compounds as a component for foods, quality deterioration due to the oxidation of foods can be prevented. Gingerol analogues represented by the following general formula (1). (In the formula (1), R1 represents an alkyl group with one to 18 carbon atoms; R2 is hydrogen atom or methyl group; R3 is methyl group or ethyl group; and A represents an alkylene group with one to 4 carbon atoms.

Abstract: In accordance with the invention, an industrial process for producing shogaols useful in the fields of for example foods, flavor, pharmaceutical products, qui-pharmaceutical products and cosmetics can be provided. The invention relates to novel intermediates represented by the following general formula and a process for producing shogaols from the intermediates. In accordance with the invention, shogaols can readily be produced, of which mass production has been difficult because shogaols have been produced only by the extraction process from a natural ginger. Intermediates; (in the formula (1), R1 represents hydrogen atom or methyl group; R2 represents optionally branched alkyl group with one to 18 carbon atoms; R3 and R4 each independently represents hydrogen atom, a lower alkyl group or a protective group of the phenolic hydroxyl group; A represents an alkylene group with one to 4 carbon atoms; and X represents benzenesulfonyl group or toluenesulfonyl group.

Abstract: An extra seat back 7 is arranged behind a regular seat 4, 5 of a vehicle in such a manner that the extra seat back 7 can take a first position embedded in a recess of a luggage floor, a second position rised up from the luggage floor, and a third position of a full-flat state.

Abstract: An autoradiographic gene-screening method employing a hybridization process, which comprises:(1) a step of transferring at least a portion of nucleic acids, fragments thereof or derivatives thereof resolved on a medium onto a transfer support to fix them thereonto;(2) a step of hybridizing the nucleic acids, fragments thereof or derivatives thereof fixed onto said transfer support with radioactively labeled probes; and(3) a step of obtaining locational information on the radioactively labeled substances on said transfer support, which comprises placing said transfer support having been subjected to the hybridization and a stimulable phosphor sheet in layers for a given period of time to cause said sheet to absorb at least a portion of radiation energy emitted by the radioactively labeled substances on said transfer support, exciting said stimulable phosphor sheet with an electromagnetic wave to release the radiation energy stored in said sheet as stimulated emission, and detecting the stimulated emission.

Abstract: An autoradiographic process for obtaining information on one or two dimensional location of radioactively labeled substances contained in a sample selected from the group consisting of tissue of an organism and a medium containing tissue of an organism and/or substances such as DNA originating from an organism,which comprises:placing said sample and a stimulable phosphor sheet having a phosphor layer comprising a stimulable phosphor dispersed in a binder together in layers for a certain period to cause said phosphor sheet to absorb at least a portion of radiation energy emitted by the radioactively labeled substances in said sample;scanning said phosphor sheet with an electromagnetic wave to release at least a portion of radiation energy stored in said phosphor sheet as stimulated emission; anddetecting the stimulated emission to obtain locational information on the radioactively labeled substances in the sample.

Abstract: Phosphoramidite compounds of the general formula ##STR1## wherein each of R.sub.1 and R.sub.2 represents a hydroxyl group having a protective group, or the group --OR.sub.4, R.sub.3 represents a hydrogen atom, a hydroxyl group having a protective group, or the group --OR.sub.4, R.sub.4 represents the group ##STR2## X represents a secondary amino group, R.sub.5 represents an allylic residue or a protective group capable of being split off by beta-cleavage, and B.sup.AOC represents a nucleoside base residue in which the amino or imino group is protected with an allyloxycarbonyl-type residue, with the proviso that only one of R.sub.1, R.sub.2 and R.sub.3 represents the group--OR.sub.4. The compounds can be produced by reacting a nucleoside represented by the general formula ##STR3## wherein each of R.sub.1 ' and R.sub.2 ' represents a hydroxyl group which may have a protective group, R.sub.3 ' represents a hydrogen atom, or a hydroxyl group which may have a protective group, and B.sup.

Abstract: An autoradiographic gene-screening method employing a hybridization process, which comprises:(1) a step of transferring a portion of genetic clones cultured on a culture medium onto a filter to fix them thereonto;(2) a step of hybridizing the genes of said clones fixed onto said filter with radioactively labeled probes;(3) a step of obtaining two dimensional information on the location of the radioactively labeled substances on the filter which comprises placing said filter having been subjected to the hybridization and a stimulable phosphor sheet in layers for a given period of time to cause said stimulable phosphor sheet to absorb at least a portion of radiation energy emitted by the radioactively labeled substances on the filter, exciting said sheet with an electromagnetic wave to release the radiation energy stored in said sheet as stimulated emission, and detecting the stimulated emission to obtain a locational information on the radioactively labeled substances on the filter; and(4) a step recovering th

Abstract: A radiation image read-out and reproducing apparatus comprises a section for feeding a stimulable phosphor sheet carrying a radiation image stored thereon, a section for feeding a developed film carrying a radiation image recorded thereon, a section for feeding a recording sheet, a light beam scanning section, and conveyance systems for conveying the stimulable phosphor sheet, the film and the recording sheet respectively to the light beam scanning section and then out of the light beam scanning section. The light beam scanning section detects the radiation image by scanning the stimulable phosphor sheet or the film, and reproduces the detected radiation image as a visible image on the recording sheet.

Abstract: In a radiation image recording and read-out system in which a radiation image is once recorded on a recording material comprising a stimulable phosphor layer, the recording material is then scanned with a laser beam, and light emitted from the recording material is photoelectrically read out to reproduce a visible image, a gas ion laser beam having a wavelength shorter than 600 nm is employed as the laser beam. The recording material is fixed on a supporting material, circulated and reused to record radiation images thereon. The apparatus comprises a mechanism for circulating the recording material with respect to the image read-out section by repeatedly moving the supporting material and the image read-out section with respect to each other, and an erasing apparatus for eliminating the radiation energy remaining in the recording material after the read-out step.

Abstract: A radiation image reader/recorder which mainly scans an optical beam (2, 22) emitted from the optical beam generation means of a laser light source (1, 21) via a light deflector (4, 25) with a frequency less than a main scanning frequency of 1 KHz, and which sub-scans at a sub-scanning density of more than 2.5 lines/mm, reading or recording a radiation image of continuous halftones. A cover (11, 29) is provided over at least at the optical passage between the means (1, 21) and the deflector (4, 25), thereby preventing the flow of air.

Abstract: A stimulable phosphor sheet preferably employable in autoradiography which comprises a substrate, a phosphor layer being provided on the substrate and comprising a stimulable phosphor dispersed in a binder, and a protective layer provided on the phosphor layer, characterized in that the surface of the protective layer is hydrophilic.The surface of the protective layer can be made hydrophilic by hydrophilic processing applied thereto or provision of a hydrophilic layer thereon.

Abstract: A stimulable phosphor sheet carrying a radiation image stored therein is scanned with stimulating rays, and the light emitted from the stimulable phosphor sheet in proportion to the radiation energy stored therein is detected and converted into an electric signal. The electric signal is converted to a digital signal. On the basis of the digital signal, there are created digital data in an amount necessary for reproducing the radiation image for use in diagnosis, and digital data for storage obtained by reducing the amount of information to a fraction of the amount of the digital data for diagnosis. The two kinds of digital data are recorded in separate recording media.

Abstract: Two or more stimulable phosphor sheets are exposed to a radiation passing through an object under conditions different from one another, and radiation images of the object at least partially different from one another are recorded on the stimulable phosphor sheets. The stimulable phosphor sheets are then scanned with stimulating rays to convert the radiation images into light, which is photoelectrically read out and converted into digital image signals. The digital image signals are subjected to a subtraction processing with respect to the corresponding picture elements of the images, thereby to obtain a signal for forming an image of a specific structure of the object.

Abstract: A light-shielding cover for a light guide member guiding light emitted from a stimulable phosphor sheet carrying a radiation image stored therein when the stimulable phosphor sheet is exposed to stimulating rays comprises a flexible light-shielding member for covering the whole of the side faces of the light guide member without closely contacting the side faces, and a pair of rod-like core metal members fitted to the flexible light-shielding member for sandwiching a portion near a linear light input face of the light guide member from both sides thereof.

Abstract: After a radiation image stored in a stimulable phosphor sheet is read out, first erasing is conducted to erase radiation energy remaining in the stimulable phosphor sheet, and then second erasing is conducted to erase fog developing in the stimulable phosphor sheet immediately before the stimulable phosphor sheet is again used for recording a radiation image. The exposure amount in the second erasing is controlled according to the time interval between the first erasing and the second erasing.

Abstract: In a radiation image read-out system wherein a stimulable phosphor sheet carrying a radiation image stored therein is exposed to stimulating rays which cause it to emit light in proportion to the radiation energy stored, and the emitted light is photoelectrically read out to reproduce a visible image, preliminary read-out for detecting the radiation image is conducted by uniformly exposing the whole surface of the stimulable phosphor sheet to stimulating rays prior to final read-out, and detecting the amount of light emitted from the whole surface of the stimulable phosphor sheet. Or, preliminary read-out is conducted by exposing the stimulable phosphor sheet to stimulating rays slitwise over the entire sheet width while the slit-like exposure section is moved with respect to the stimulable phosphor sheet, and detecting the amount of light emitted from the sheet.