A slide holder for mounting to a sample holder having a pair of openings therein, for a grinderpolisher includes a plate for receiving the slide. A fixer is provided with at least a fixing roller and a press roller which nips and delivers the transfer medium to fix the unfixed image. At least one gas-guiding channel is accommodated within a receptacle of the gas storage cartridge. A transmissive screen for a rear projection display device having a light image source, including the above light diffusing laminated plate and a lens system disposed such that a light image from the source is projected through the light diffusing laminated plate and the lens system and displayed on the screen. A heated vortex sampling nozzle can greatly improve the sampling efficiency for low volatility target molecules, particularly when the sampling needs to be performed at a distance from the air intake and the vapor pressure of the target molecules is very low. The model allows for the assessment of bone deformations, computation of strains and stresses due to the specific forces acting on bone during function, and contemplates forces that do or do not cause viscous effects and forces that cause either elastic or plastic bone deformation.