Abstract: This light sensitive element comprises: a substrate; a light absorbing layer containing InGaA, the light absorbing layer being disposed on the substrates; and semiconductor layers containing InAsP. The semiconductor layers are disposed on an upper surface and on a lower surface of the light absorbing layer, respectively. The semiconductor layers constitutes a quantum well structure with the light absorbing layer.

Abstract: In order to discriminate sites in a sample effectively, an imaging apparatus according to an embodiment is provided with: a light detector for detecting light radiated from a sample irradiated with first-wavelength infrared light and second-wavelength infrared light from a light source; and a controller for adjusting the intensity of the first-wavelength infrared light or the intensity of the second-wavelength infrared light, and generating an image of the sample based on a detection result obtained by irradiating the sample with the first-wavelength infrared light and the second-wavelength infrared light simultaneously.

Abstract: This technique provides a protein film production method which can form a protein film, with denaturation of protein being prevented. The protein film production method includes mixing a protein with an aqueous solvent, to thereby form an aqueous protein solution PAS1, and treating the aqueous protein solution PAS1 with plasma generated by a plasma generator 100. The plasma generated by the plasma generator 100 has a plasma density of 1×1013 cm?3 to 1×1015 cm?3.

Abstract: A method of inhibiting accumulation of body cavity fluid in a subject in need thereof includes administering a covalent conjugate of interferon with polyalkylene glycol to the subject wherein the polyalkylene glycol is polyethylene glycol, the interferon is type I interferon or interferon-?, and the type I interferon is interferon-? or interferon-?.

Abstract: An inhibitory agent for body cavity fluid accumulation exerts a drug efficacy on body cavity fluid accumulation that is resistant to administration of diuretics, and is capable of exerting therapeutic effects even by systemic administration. The inhibitory agent for body cavity fluid accumulation includes, as an active ingredient, a covalent conjugate of interferon with polyalkylene glycol.