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  • P Plath
  • 1990
The acuity of hearing and speech recognition has been checked in two groups of elderly persons: 1) Subjects aged between 50 and 80 years without any ear disease or hearing problems; 2) Subjects of similar age with noise-induced permanent hearing loss (NIPHL). The speech recognition threshold was evaluated in both groups by numbers of second order, and the(More)
Enantiomers of triaziflam and structurally related diaminotriazines were synthesized and their herbicidal mode of action was investigated. The compounds caused light and dark-dependent effects in multiple test systems including heterotrophic cleaver and photoautotrophic algal cell suspensions, the Hill reaction of isolated thylakoids and germinating cress(More)
We recruited 46 adult patients affected by disturbing tinnitus lasting for at least 3 years. All were treated with a combined counseling protocol constituting hypnotherapeutic and muscle relaxation techniques. We randomly assigned 26 patients to the group receiving low-level laser stimulation treatment and 20 to the placebo group. The laser power was 5 mV(More)
Anatomical investigations were carried out on 39 human brains ranging in age from the 29th week of development to the 70th year of life. It was demonstrated that myelination, as a prerequisite for functional maturation, takes place during the 1st year of life. Functional maturation was analyzed with electrophysiological techniques. Normal development(More)
We have followed up 91 patients for 3 or more years after stapes surgery for otosclerosis, 59 by stapedectomy and 32 by stapedotomy. The surgical technique was chosen randomly. Both surgical techniques achieved significant hearing improvement, but in the higher frequencies (3 kHz) the results of stapedotomy are better and more stable than those after(More)
Peritonsillar abscesses are the main complication of chronic inflammation of the tonsils. They should be considered as emergency cases and require quick and adequate treatment. Although abscess tonsillectomy has been reported since 1932, there is still a vivid discussion about this method of choice. We report on our experiences and findings in 284 cases of(More)
The herbicidal mode of action of the new synthetic cyanoacrylates ethyl (2Z)-3-amino-2-cyano-4-ethylhex-2-enoate (CA1) and its isopropyl ester derivative CA2 was investigated. For initial characterization, a series of bioassays was used indicating a mode of action similar to that of mitotic disrupter herbicides such as the dinitroaniline pendimethalin.(More)