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Root tips excised from rice seeds germinated aerobically and anaerobically for 12, 18, 24, 48 and 72 h were used as experimental materials, and the changes in the ultrastructure of the plerome cells o...
A modified oxygen delivery system was developed for a patient too claustrophobic for the monoplace chamber or the hood in the multiplace chamber. The adaptation delivered O2 through the patient's trac...
In order to improve the trophic state of Lake Sempach, a eutrophied lake in central Switzerland, its external phosphorus (P) load has been decreased and its hypolimnion has been artificially oxygenate...

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