Judith Ruprecht

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Electron microscopy and single-particle analyses have been carried out on negatively stained photosystem II (PSII) complexes isolated from the green alga Chlamydomonas reinhardtii and the thermophilic cyanobacterium Synechococcus elongatus. The analyses have yielded three-dimensional structures at 30-A resolution. Biochemical analysis of the C. reinhardtii(More)
The wheatbelt of Western Australia largely corresponds to a zone of ancient drainage, characterised by highly variable rainfall, long dry summers, low hydraulic gradients, intermittent surface flows and high regolith salt loads. The accumulation and distribution of salt, the rudimentary aquifers with deep watertables, the intermittent flooding and(More)
Single particle analysis and 3D reconstruction of molecules imaged by transmission electron microscopy have provided a wealth of medium to low resolution structures of biological molecules and macromolecular complexes, such as the ribosome, viruses, molecular chaperones and photosystem II. In this review, the principles of these techniques are introduced in(More)
This paper discusses the land types, hydrologic characteristics and processes, and the major modification of these, in relation to mechanisms and magnitude of phosphorus losses to drains and riverine systems which discharge to the Peel-Harvey estuary. About 75% of the coastal plain part of the catchment is cleared of native vegetation and used for dryland,(More)
This paper proposes a hybrid approach for managing knowledge within companies based on communication between people. In addition to traditional Knowledge Management Systems our concept supports employees not only in finding information but also in establishing contact between the person requesting information and a person or community that can help solve(More)
The staining properties of 4 spectral pure derivates of Phenoxazin--Capriblue GN, Stella Blue, Oxonin, and Punky Blue--were investigated using human and animal tissues. Punky Blue and Stella Blue are newly synthesized derivates. A simplified staining technique was developed based on conventional fixing and mounting methods of histological materials. Punky(More)
Paraffin-embedded human and animal tissues were stained with spectrally pure thionine, 1,3-diaminophenthiazoniumchlorate and 1,7-diaminophenthiazoniumperchlorate. They were examined by light microscopy to determine their applicability in histologic diagnosis. Furthermore the effect of salts and of the type of dye solvent on the staining properties of(More)
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