Abstract: A power conversion apparatus is provided with: a plurality of power conversion circuits each provided with a transformer and supplying DC power to a common rechargeable battery; a control circuit configured to control the power conversion circuits; and a cooling device configured to cool the power conversion circuits. The cooling device is provided with at least one flow path for a coolant, the flow path being in thermal contact with the transformers of the power conversion circuits. When a load voltage of the rechargeable battery is equal to or higher than a predetermined threshold, the control circuit operates one power conversion circuit of the plurality of power conversion circuits, the one power conversion circuit provided with the transformer having a largest thermal contact area with the flow path, and stops operations of other power conversion circuits of the plurality of power conversion circuits.

Abstract: According to the present invention, a vessel embolic material comprising a hydrogel containing a cell growth factor, which is applicable to embolic operations for various vascular disorders, excellent in high adaptability to a living body, can be easily handled, ensures the occlusion of the affected part and can maintain the occlusion for a long time, and a method of treatment using the same can be provided.

Abstract: Disclosed is a device for occlusion of blood vessel comprising a metallic coil, a sustained-release element and a cell growth factor. Examples of the cell growth factor include basic fibroblast growth factor (bFGF), acidic fibroblast growth factor (aFGF), platelet-derived growth factor (PDGF), transforming growth factor ?1 (TGC-?1), vascular endothelia growth factor (VEGF) and connective tissue growth factor (CTGF). Examples of the sustained-release element include a hydrophilic hydrogel. By using the device for occlusion of blood vessel according to the present invention, a blood vessel site such as aneurysm is occluded, and preferably, organization may be induced in vivo.

Abstract: The present invention provides an artificial dura mater characterized by comprising at least a sheet of a biodegradable and bioabsorbable synthetic polymer and having a storage modulus at ordinary temperature of from 1×107 to 5×108 (Pa); and a process for producing an artificial dura mater characterized by dissolving a lactide/?-caprolactone copolymer (in a molar ratio ranging from 40/60 to 60/40) in a solvent, filtering the resultant solution and casting the same followed by air drying.

Abstract: The present invention provides an artificial dura mater characterized by comprising at least a sheet of a biodegradable and bioabsorbable synthetic polymer and having a storage modulus at ordinary temperature of from 1×107 to 5×108 (Pa); and a process for producing an artificial dura mater characterized by dissolving a lactide/&egr;-caprolactone copolymer (in a molar ratio ranging from 40/60 to 60/40) in a solvent, filtering the resultant solution and casting the same followed by air drying.

Abstract: The present invention provides an artificial dura mater characterized by comprising at least a sheet of a biodegradable and bioabsorbable synthetic polymer and having a storage modulus at ordinary temperature of from 1×107 to 5×108 (Pa); and a process for producing an artificial dura mater characterized by dissolving a lactide/&egr;-caprolactone copolymer (in a molar ratio ranging from 40/60 to 60/40) in a solvent, filtering the resultant solution and casting the same followed by air drying.

Abstract: A building structural material produced by A magnesium alloy contains aluminum in a range of 0.1 wt % to 1.0 wt %, zinc in a range of 0.1 wt % to 2.0 wt %, manganese in a range of 0.1 wt % to 1.0 wt %, 0.04 wt % or less copper, 0.05 wt % or less silicon, 0.005 wt % or less iron, and 0.005 wt % or less nickel. This building structural material had no cracks even when it was extruded at an extrusion speed about ten times as high as the conventional speed and also no ignition attributable to surface oxidation occurred.

Abstract: An automatic information receiving terminal device in a character/graphic information network system including a videotex communication network or a public communication network (telephone network) is connected to an information center through the videotex or public communication network so that various items of image information from the information center can be received by the terminal device. The terminal device having an internal clock and a time setting unit. The terminal device can automatically receive or reproduce desired information at an each time preset by the time setting means, so that the terminal device can automatically be operated without manual intervention so as to give emergency information or the like timely to a number of people.