Thomas Rosner

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Previous studies of the rat have shown that testosterone concentrations within the interstitial and seminiferous tubularfluids of the testes are significantly higher than normal serum levels, and further, that although intratesticular testosterone concentration can be substantially reduced without an effect on spermatogenesis, the concentration that is(More)
Hearing impairments are still prevalent, especially in rural areas of developing countries. Children in such areas have a high risk for hearing loss caused by malnutrition and inadequate medical facilities. In addition, many adults in urban areas are continuously exposed to high noise levels in their work environments (e.g., in factories or construction(More)
Both distortion product otoacoustic emissions (DPOAEs) and auditory steady-state responses (ASSRs) provide frequency-specific assessment of hearing. However, each method suffers from some restrictions. Hearing losses above 50 dB HL are not quantifiable using DPOAEs and their performance at frequencies below 1 kHz is limited, but their recording time is(More)
A case of circulating anticoagulant resulting in persistent postoperative bleeding has been reported. All clotting factors were normal when the patient's plasma was tested in a high dilution. Unlike previous reports of this type of coagulation inhibitor, the hemorrhagic diathesis was clinically severe in comparison with the mildly abnormal in vitro tests.(More)
A maximum auditory steady-state response (ASSR) amplitude is yielded when the ASSR is elicited by an amplitude-modulated tone (f(c)) with a fixed modulation frequency (f(m) = 40 Hz), whereas the maximum distortion product otoacoustic emission (DPOAE) level is yielded when the DPOAE is elicited using a fixed frequency ratio of the primary tones (f2/f1 =(More)
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