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Biomedical subjects

J Thieme

Publications and source records attributed to J Thieme.

5 recordsLinked to original sources
PubMed1996

[X-ray microscopy].

Owing to the short wavelengths of X-radiation X-ray microscopes allow higher resolution than optical microscopes. In contrast to electron microscopes, X-radiation can be used to study relatively thick aqueous specimens in their natural environment. X-ray microscopes require intense X-radiation, which is best provided by electron storage rings, as well as efficient X-ray optics. X-ray microscopes with zone plate optics are installed at the storage ring BESSY in Berlin for studies in the fields of biology, medicine, biophysics, colloid chemistry, and soil sciences.

Animals↗
PubMed1990

Computerized microscopic image analysis method in tissue-biomaterials interaction.

The use of computer-based image analysis belongs to the new methods of biocompatibility testing. When materials were implanted subcutaneously in animals the cells of the connective tissue capsule can give a good standard for the evaluation of biocompatibility. The application of image processing systems allows the automation of a great number of measurings and test - techniques. It is also possible to get quantitative information on cell - and haemocompatibility testing. With the help of the automatic microscopic image analysis the accuracy of morphometric methods increased and scientists time was saved.

Animals↗
PubMed1990

[Computer-assisted identification and comparative studies of the human skull].

The comparison of reconstructed skull profiles with photographic or other patterns for identification up to the reply to questions for sex, age, and race by the help of image analysis represents a relatively new development in forensic medicine. Using a Robotron image analyzing system 20 human skulls of different races were analysed morphometrically. Standardized profile functions, which were put through a morphometric analysis, showed characteristic individual features. By the help of the computerbased identification method mathematic differences between skulls of varions races became veritable.

Cephalometry↗
PubMed1986

X ray microscopy--state of the art and expected developments.

The Göttingen X ray microscope at the electron storage ring BESSY in Berlin and X ray microscopy experiments with biological specimens are described. A look ahead to future developments--optics for higher resolution and with better efficiency, detector devices with higher detective quantum efficiency, and the development of a laboratory X ray microscope with a plasma X ray source--is taken.

Electron Probe Microanalysis↗