[A two-dimensional double dispersed hadamard transform spectrometer].

A kind of two-dimensional hadamard transform spectrometer was developed. A grating was used for chromatic dispersion of orders and a prism was used for spectral dispersion. Quite different from traditional CCD detection method, a digital micromirror device (DMD) was applied for optical modulation, and a simple point detector was used as the sensor.

[An interferometer design for Fourier transform infrared spectrometer].

A novel interferometer system based on the combinations of cube-corner reflectors and fixed plane mirrors was designed to improve the quality of spectra. It consists of a pair of cube corner reflectors, two fixed perpendicular plane mirrors and one beam splitter. By analyzing the modulation depth and phase error, the tilt and shearing of the cube corner reflectors, the deviation angle of cube corner reflector, the tilt of fixed plane mirrors and the deviation angle of two fixed plane mirrors were analyzed.

[Expression of a plant associated human cancer antigen in breast cancer].

Objective: To study the expression of a glycoprotein of plant origin in normal, benign and malignant breast tissues.

Methods: Expression of a plant glycoprotein was examined in 5 samples of normal breast tissues, 20 fibro-adenoma and 136 breast cancer by SABC immunohistochemical staining and the results were analyzed by SPSS statistics software.

Results: No positive staining was detected in normal breast tissues (0/5).

Expression of a plant-associated human cancer antigen in normal, premalignant and malignant esophageal tissues.

Aim: To study the relationship between the expression profiles of a plant-associated human cancer antigen and carcinogenesis of esophagus and its significance.

Methods: We analyzed expression of a plant-associated human cancer antigen in biopsy specimens of normal (n=29), mildly hyperplastic (n=29), mildly (n=30), moderately (n=27) and severely dysplastic (n=29) and malignant esophageal (n=30) tissues by immunohistochemistry.

Results: The plant-associated human cancer antigen was mainly confined to the cytoplasm and showed diffuse type of staining.