Wolfgang de Bruyn

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The present study investigated the vocal capacities of adult men who had undergone total laryngectomy. Esophageal (N = 10) and tracheoesophageal (N = 10) speakers were compared for the parameters maximum phonation time (MPT), maximum number of syllables that could be spoken on one air intake (SYLLS), dynamic range (DYN), frequency range (FREQ), and maximum(More)
In this work, we explored the use of an Ion Mobility Spectrometry (IMS) device with an ultraviolet (UV) source, and of a Gas Chromatographic (GC) column coupled to an IM Spectrometer with a tritium source, for the discrimination of three grades of olive oil, namely: extra virgin olive oil (EVOO), olive oil (OO) and pomace olive oil (POO). The three types of(More)
Two strains of lymphoblasts, the malignant MB VIA and the nonmalignant MB HI ' , both derived by continuous subculture from an explant of a mouse lymphosarcoma, were cultured in large amounts. The respiration, anaerobic and aerobic glycolysis of the cells were measured, and the effects of ~, 4-dinitrophenol and the tumor-inhibitory compound(More)
The purpose of this study was to compare the intelligibility of two types of alaryngeal speech commonly used after total laryngectomy. Four male oesophageal speakers and four male tracheo-oesophageal speakers read a series of monosyllabic words, multisyllabic words and sentences. The monosyllabic word list consisted of several minimal pairs for each of(More)
From January 1st 1970 to December 31th 1985, 706 nephrectomies for renal cell carcinoma have been performed by the staff of the urologic clinic of the University of Erlangen-Nürnberg. 222 nephrectomies by lumbal and 484 by transabdominal incision. The following study compares the results of two groups of patients, who all have been operated transabdominally(More)