Abstract: The present invention is to provide a photoelectric conversion element having an excellent photoelectric conversion efficiency for light in a wide wavelength range and excellent manufacturing suitability. In addition, an imaging element, an optical sensor, and a compound are provided. A photoelectric conversion element includes a conductive film, a photoelectric conversion film, and a transparent conductive film in this order, and the photoelectric conversion film contains a compound represented by Formula (1).

Abstract: There are provided an endoscope and a treatment tool elevating mechanism capable of achieving improvement in accessibility of a cleaning brush, prevention of wear of a distal-end-portion main body, and prevention of slipping of a treatment tool into the lower side of an operating wire. When viewed in a second direction perpendicular to both the longitudinal axis of the distal-end-portion main body and a first direction perpendicular to the longitudinal axis, a wire distal end portion of the operating wire connected to a wire connection portion of a treatment tool elevator is positioned on the other direction side with respect to an elevator main body portion of the treatment tool elevator.

Abstract: A compound represented by the following Formula (1): wherein, Het1 represents a bivalent five- or six-membered aromatic heterocyclic residue and may further be substituted; Xa to Xd each independently represent a heteroatom and may further be substituted; Ya to Yf each independently represent a heteroatom or a carbon atom and may further be substituted; the ring bound to Het1 may have a double bond at any position

Abstract: A radiation image capturing system includes a first image capturing apparatus incorporating a radiation detector for detecting a radiation which has passed through a subject and converting the radiation into radiation image information, a second image capturing apparatus incorporating a stimulable phosphor panel for detecting a radiation which has passed through a subject, converting the radiation into radiation image information, and holding the radiation image information, and a processor for controlling the first image capturing apparatus and the second image capturing apparatus according to image capturing instruction information. The processor includes a priority activator for activating the second image capturing apparatus in preference to the first image capturing apparatus when the processor is activated.

Abstract: When a projection direction or position has been changed by the operation from the outside, the resolution of a projection image in a region of interest on a projection plane is set higher than that of the projection image other than the region of interest. Then, a projection image is generated by dividing, based on the set resolutions, the projection plane into small areas that have different sizes depending on whether an area to be divided is in the region of interest and by calculating the pixel value of each of the small areas from the voxel values of three-dimensional volume data projected onto the respective small areas. After all the pixel values of the small areas are calculated, projection images are generated in such a manner that the resolution of at least the projection image other than the region of interest is reset gradually to a higher value.