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Carbon assimilation is usually measured at fairly constant light intensities. Under natural conditions, however, planktonic algae are moved through the water column and experience light of fluctuating intensity and spectral composition. They may cope with strong UV for a short residence in the upper water layer. In order to estimate the effects of UV on(More)
Lake Plessa 107 is an example of the older, relatively small and often shallow mining lakes of Lusatia which only have groundwater inflow. From a morphological point of view, the lake should be polymictic with short stratified periods. But besides temperature, mixing is also determined by chemical gradients in the water column that can lead up to monomixis.(More)
A rare case of Chlamydia psittaci encephalitis is reported. The disease started with anxiety, agitation and fever (38.5 degrees C) accompanied with hallucinations and regressed within 48 hours, but a confusional syndrome persisted for 9 days. Alterations in the blood-brain barrier with low CSF protein levels and signs of lateralization could be(More)
The hormonal alterations induced by tricyclic and tetracyclic antidepressors (AD) were studied in patients with psychoaffective disorders (PAD) to ascertain the role of certain biogenic amines in the regulation of thyroid stimulating hormone (TSH), prolactin (PRL) and growth hormone (GH). The responsiveness of plasma TSH, PRL and GH to synthetic(More)
A comparison of the frequency of HLA-A, B, C and Bf antigens observed in a group of 75 chronic schizophrenics and in a control group of 184, all strictly from Alsace, does not carry any argument in favour of a strong genetic association between schizophrenia and the antigens studied. In effect, the modifications observed in the schizophrenic(More)
The purpose of the present study was to investigate dysfunctions in thyroid gland secretion and regulation among patients with manic-depressive psychosis. Plasma levels of thyroxine (T4), triiodothyronine (T3) and thyroid stimulating hormone (TSH) were measured by radioimmune assays, and TSH responsiveness (delta TSH) to synthetic TSH-releasing hormone(More)
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