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Article
Two modified smoky quartz centers in natural citrine
Electron paramagnetic resonance (EPR) measurements on natural citrine and greenish-yellow quartz revealed the presence of several localized hole centers adjacent to an aluminium impurity. The g tensors and their...
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Article
Primary perireticulin amyloidosis in a 14-year-old girl
A primary perireticulin amyloidosis is reported in a 14-year-old girl, which showed the symptoms of a steroid-resistant nephrotic syndrome. The diagnosis was established by biopsies of kidney and rectum. Occur...