Abstract: Provided is a medium evaluation method for evaluating the suitability of a medium in which cell aggregates are cultured in a suspended state, by which an evaluation of whether a medium is adequate for both the cell retention performance and the cell recovery efficiency, the medium evaluation method including dispersing a plurality of particles in a medium, measuring a sedimentation velocity by which the particles settle in the medium, and using the sedimentation velocity thus measured as an index value indicating the suitability of the medium; and also provided are a medium and a culture method.

Abstract: A transparent conductive film having a transparent resin film containing a cyclic olefin resin, an undercoating layer formed on the transparent resin film, and a conductive layer and having a thermal dimensional change rate in hot water at 100° C. for 60 seconds of from 0.01 to 0.2%, which shows excellent adhesion between the transparent resin film and the conductive layer.

Abstract: Provided is a medium evaluation method for evaluating the suitability of a medium in which cell aggregates are cultured in a suspended state, by which an evaluation of whether a medium is adequate for both the cell retention performance and the cell recovery efficiency, the medium evaluation method including dispersing a plurality of particles in a medium, measuring a sedimentation velocity by which the particles settle in the medium, and using the sedimentation velocity thus measured as an index value indicating the suitability of the medium; and also provided are a medium and a culture method.

Abstract: A transparent conductive film having a transparent resin film containing a cyclic olefin resin, an undercoating layer formed on the transparent resin film, and a conductive layer and having a thermal dimensional change rate in hot water at 100° C. for 60 seconds of from 0.01 to 0.2%, which shows excellent adhesion between the transparent resin film and the conductive layer.

Abstract: A transparent conductive film having a transparent resin film containing a cyclic olefin resin and a conductive layer and having a thermal dimensional change rate in hot water at 100° C. for 60 seconds of from 0.01 to 0.2%, shows excellent adhesion between the transparent resin film and the conductive layer.

Abstract: A polyester film containing a polyester support having a terminal carboxylic acid value of from 3 to 20 eq/ton and IV of from 0.65 to 0.9 dL/g, and a conductive layer having a surface specific resistance of from 106 to 1014? per square with an in-plane distribution of from 0.1 to 20% exhibits an improvement in withstand voltage.

Abstract: A polyester film has excellent resistance to hydrolysis, excellent heat resistance in high temperatures and low humidity, and mechanical strength. The polyester film satisfies a stress heat resistant coefficient f(125)?3 and a wet thermo retention (=100×S(120)/S(0)) of 30% or more. f(125) is a value obtained by substituting t=125° C. in an approximation represented by f(t); t represents a temperature (° C.) at thermo processing; f(t) represents a stress heat resistant coefficient f at the thermo temperature t and represents an approximation to a straight line obtained by linear approximation by a least squares method of values plotted from a relationship between the thermo temperature t and a logarithm (log T(t)) of time T at which a rupture stress is 50% when t is 150° C., 160° C., 170° C., or 180° C.; T(t) is a time (hr) at which the maximum stress in a tensile test after thermo processing at t° C.

Abstract: An object of the invention is to provide a transparent film of which dimension shrinkage is suppressed even if a long period of time has passed at high humidity, a manufacturing method therefore, a transparent conductive film, a touch panel, an anti-reflection film, a polarization plate, and a display device. The invention provides a transparent film that satisfies Expressions (1) and (2), in which Rth that represents birefringence normalized in a thickness of 100 ?m in a thickness direction is 1 nm to 50 nm, and inplane distribution of the Rth is 1% to 50%; Expression (1): 130?T?200; Expression (2): 0?Y<0.4; in Expressions (1) and (2), T represents a glass transition temperature of the transparent film, and Y represents an equilibrium moisture content of the transparent film at 25° C.; and a unit of the glass transition temperature is ° C., and a unit of the equilibrium moisture content is mass %.

Abstract: A biaxially stretched polyester film for protecting a back surface of a solar cell, containing a polyester resin that is polymerized with addition of a Ti catalyst, a Mg compound, a P compound and a nitrogen-containing heterocyclic compound, and having a volume resistivity at 285° C. is 10×107 ?·cm or less, is improved in hydrolysis resistance and electrostatic adhesion property.

Abstract: A method of manufacturing a polyester film, including: preparing a polyester film substrate having an amount of a terminal carboxylic acid group (AV) of from 3 eq/ton to 20 eq/ton, by using a polyester resin having a temperature distribution of a pre-melting peak (Tm?) of from 1° C. to 10° C.; providing a coating layer on at least one surface of the polyester film substrate; and stretching the polyester film substrate provided with the coating layer at least once.

Abstract: A transparent conductive film having a transparent resin film containing a cyclic olefin resin and a conductive layer and having a thermal dimensional change rate in hot water at 100° C. for 60 seconds of from 0.01 to 0.2%, shows excellent adhesion between the transparent resin film and the conductive layer.

Abstract: A biaxially stretched polyester film for protecting a back surface of a solar cell, containing a polyester resin that is polymerized with addition of a Ti catalyst, a Mg compound, a P compound and a nitrogen-containing heterocyclic compound, and having a volume resistivity at 285° C. is 10×107 ?·cm or less, is improved in hydrolysis resistance and electrostatic adhesion property.

Abstract: A polyester film containing a polyester support having a terminal carboxylic acid value of from 3 to 20 eq/ton and IV of from 0.65 to 0.9 dL/g, and a conductive layer having a surface specific resistance of from 106 to 1014? per square with an in-plane distribution of from 0.1 to 20% exhibits an improvement in withstand voltage.

Abstract: A polymer sheet for a solar cell, including: a first polymer layer; a second polymer layer; and a polymer support, arranged in this order, wherein the first polymer layer includes a polymer selected from the group consisting of a fluorine polymer and a silicone polymer, the first polymer layer contacts the second polymer layer, and a roughness (Rz) of an interface between the first polymer layer and the second polymer layer is in a range of from 0.2 ?m to 3.0 ?m.

Abstract: A polyester film has excellent resistance to hydrolysis, excellent heat resistance in high temperatures and low humidity, and mechanical strength. The polyester film satisfies a stress heat resistant coefficient f(125)?3 and a wet thermo retention (=100×S(120)/S(0)) of 30% or more. f(125) is a value obtained by substituting t=125° C. in an approximation represented by f(t); t represents a temperature (° C.) at thermo processing; f(t) represents a stress heat resistant coefficient f at the thermo temperature t and represents an approximation to a straight line obtained by linear approximation by a least squares method of values plotted from a relationship between the thermo temperature t and a logarithm (log T(t)) of time T at which a rupture stress is 50% when t is 150° C., 160° C., 170° C., or 180° C.; T(t) is a time (hr) at which the maximum stress in a tensile test after thermo processing at t° C.

Abstract: A polyester film containing a polyester resin having an intrinsic viscosity IV of from 0.73 to 0.9 dL/g in which the polyester film has a specific heat change at 85° C. to 135° C. (?Cp) of from 0.06 to 0.1 J/g, has an excellent weather resistance, a good planar surface state and a low thermal shrinkage.

Abstract: A method of manufacturing a polyester film, including: preparing a polyester film substrate having an amount of a terminal carboxylic acid group (AV) of from 3 eq/ton to 20 eq/ton, by using a polyester resin having a temperature distribution of a pre-melting peak (Tm?) of from 1° C. to 10° C.; providing a coating layer on at least one surface of the polyester film substrate; and stretching the polyester film substrate provided with the coating layer at least once.

Abstract: A method for producing a polyester film includes: an unstretched film formation step of forming an unstretched polyester film having a thickness of from 2.5 mm to 5.0 mm by melt-extruding a polyester resin using an extruder, and cooling the polyester resin; and a stretching step of stretching the formed unstretched polyester film in at least one direction after heating the formed unstretched polyester film so as to have a mean temperature T1 (° C.), a surface temperature, and a central temperature. The mean temperature T1 (° C.) satisfies a relationship represented by formula (1): Tg?20° C.<T1<Tg+25° C., wherein Tg represents a glass transition temperature (° C.) of the unstretched polyester film. The surface temperature is higher than the central temperature by from 0.3° C. to less than 15° C.

Abstract: A polyester film including terminal carboxylic groups in an amount of from 2 eq/t to 23 eq/t, wherein an amount of carboxylic groups on a surface of the film is from 0.005 eq/m2 to 0.2 eq/m2, and a thickness of the film is from 120 ?m to 500 ?m.

Abstract: A cellulose acylate film produced by a melt-casting film formation, wherein the total of the number of projections having a height of from 0.1 ?m to 100 ?m and a length of at least 1 mm and the number of depressions having a depth of from 0.1 ?m to 100 ?m and a length of at least 1 mm is at most 10 per 10 cm of the width of the film. When built in a liquid-crystal display device, the cellulose acylate film significantly reduces the display blur in the device.