摘要:
An X-ray CT apparatus having X-ray irradiator for irradiating an X-ray to an object to be inspected, an X-ray sensor for detecting an X-ray passed through the object to be inspected, an X-ray sensor signal processing circuit for processing an output signal from the X-ray sensor, and a CT control apparatus for reconstructing an image of the object to be inspected on the basis of an output signal of the X-ray sensor processed by the X-ray sensor signal processing circuit. The X-ray sensor signal processing circuit includes a filter for removing a DC component from the output signal of the X-ray sensor, and an integration circuit for integrating the output signal of the X-ray sensor from which the DC component is removed by the filter.
摘要:
Each semiconductor radiation detector used for a nuclear medicine diagnostic apparatus (PET apparatus) is constructed with an anode electrode A facing a cathode electrode C sandwiching a CdTe semiconductor member S which generates charge through interaction with γ-rays. Then, a thickness t of the semiconductor member S sandwiched between these mutually facing anode electrode A and cathode electrode C is set to 0.2 to 2 mm. Furthermore, the devices are mounted (laid out) on substrates in such a way that the distance (distance of conductor) between the semiconductor radiation detector and an analog ASIC which processes the signal detected by this detector is shortened. Furthermore, the substrates on which the detectors are mounted are housed in a housing as a unit (detector unit).
摘要:
Each semiconductor radiation detector used for a nuclear medicine diagnostic apparatus (PET apparatus) is constructed with an anode electrode A facing a cathode electrode C sandwiching a CdTe semiconductor member S which generates charge through interaction with γ-rays. Then, a thickness t of the semiconductor member S sandwiched between these mutually facing anode electrode A and cathode electrode C is set to 0.2 to 2 mm. Furthermore, the devices are mounted (laid out) on substrates in such a way that the distance (distance of conductor) between the semiconductor radiation detector and an analog ASIC which processes the signal detected by this detector is shortened. Furthermore, the substrates on which the detectors are mounted are housed in a housing as a unit (detector unit).
摘要:
A medicament for treatment of cancer comprising a compound represented by the following general formula (I) or a physiologically acceptable salt thereof: Ar1—S—R1—S—Ar2 wherein R1 represents a nonmetal bridging group; Ar1 and Ar2 independently represent a group selected from the group consisting of an aryl group which has, on its ring, one to three hydroxyl groups optionally substituted with a monovalent group and said aryl group may have one to three substituents other than hydroxyl group on its ring; and a heteroaryl group which has, on its ring, one to three hydroxyl groups optionally substituted with a monovalent group, and said heteroaryl group may have one to three substituents other than hydroxyl group on its ring.
摘要翻译:一种用于治疗癌症的药物,其包含由以下通式(I)表示的化合物或其生理学上可接受的盐:其中R1表示非金属桥连基团; Ar 1和Ar 2独立地表示选自以下的基团:在其环上具有1〜3个任选被一价基团取代的羟基的芳基,所述芳基可以在其上具有1-3个除羟基以外的取代基 环; 和在其环上具有任选被一价基团取代的一至三个羟基的杂芳基,并且所述杂芳基可以在其环上具有一至三个除羟基以外的取代基。
摘要:
A peptide derivative amphiphatic compound or N-terminal salt thereof represented by formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each represents a straight-chain or branched alkyl or acyl group having 8 to 24 carbon atoms optionally having a substituent or an unsaturated group; X represents --O--or --NH--; R.sup.3n and R.sup.3(n+1) each represents an .alpha.--amino acid side chain; n is an integer of from 0 to 5; the compound may be a racemic compound or an optically active compound when the compound has an asymmetric carbon atom; and the N-terminal salt of the compound optionally forms with an acid component; an intermediate thereof, a liposome comprising said peptide derivative amphiphatic compound and a film consisting of a monolayer or multilayers comprising the peptide derivative amphiphatic compound are disclosed.
摘要:
An amphipathic compound, which includes a succinic acid moiety and an amino acid moiety and is designed so as to form a stable unilayer liposome, and a negatively charged liposome comprising said amphipathic compound as a membrane-component are disclosed. The amphipathic compound of the present invention gives liposomes which minimize the leakage of a drug encapsulated therein and scarcely undergo association, aggregation or precipitation.
摘要:
A heat-developable photographic element containing a light-sensitive silver halide and a binder on a support, and in addition, a base precursor and a photographic reagent capable of releasing a compound represented by the general formula (I) by reaction with a base in a light-sensitive layer and/or an image receiving layer. ##STR1## wherein Y is an atomic group necessary for forming a 5-, 6- or 9-membered heterocyclic ring.The photographic material has excellent temperature compensation capability and low fog.
摘要:
An image forming process including a heating step is disclosed. The process comprises conducting said heating step in the presence of at least one compound represented by formula (I), (II), or (III). ##STR1## wherein R.sup.1 represents ##STR2## wherein R.sup.11 and R.sup.12 each represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryl group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted alkyloxy group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted alkylthio group, a substituted or unsubstituted arylthio group or a substituted or unsubstituted amino group; R.sup.11 and R.sup.12 together form a 5-membered or 6-membered ring; Q represents a hydrogen atom or a substituted or unsubstituted alkyl group, a substituted or unsubstituted cycloalkyl group, or a substituted or unsubstituted aryl group, or Q represents a group linked to the pyrazole ring, TIME or PUG either directly or through another atom to form a ring; TIME represents a timing group; PUG represents a photographically useful group; and n represents 0 or a positive integer.The image forming process provides for little variation in photographic characteristics even when there is a substantial variation in the heat-processing temperature.
摘要:
A heat-developable color light-sensitive material is described, comprising a support having thereon at least (1) a light-sensitive silver halide emulsion, (2) a dye providing substance which releases a dye having a different diffusibility from that of the dye providing substance in correspondence or countercorrespondence to the light-sensitive silver halide when the light-sensitive silver halide is reduced under the condition of high temperature and (3) an organic acid precursor containing a structural moiety bonded to carbon atoms that is represented by formula (I) ##STR1## The heat-developable color light-sensitive material can provide color images having a high S/N ratio and a high image density.
摘要:
A heat-developable photographic light-sensitive material is described, comprising a support having thereon, at least one layer containing a compound represented by the general formula (I) or (II) below: ##STR1## wherein R and R' each represents a group selected from a hydrogen atom, an alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an aryl group, an amino group, an acylamino group, an alkoxy group, an alkylthio group, a sulfonylamino group, a heterocyclic ring group and a substituted group of them; X represents atoms forming a 5-membered or 6-membered ring; A represents a group causing a decarboxylation reaction.This heat-developable photographic light-sensitive material provides a high maximum density and low fog by heat-developing at a relatively low temperature and for a short time.