Various postharvest treatments were evaluated for effect on longevity and quality of cut Campanula medium L. ‘Champion Blue’ and ‘Champion Pink’ stems. Stems stored at 2 °C either wet or dry had no difference in vase life or percent flowers opened; however, flowers stored dry had a slightly greater percentage of senesced flowers at termination. Increasing storage duration from 1 to 3 weeks decr...

Otoacoustic emissions are low-intensity sounds that are produced by cochlea. The aim was to evaluate of the click evoked otoacoustic emission /TEOAE/ and distortion-product otoacoustic emission /DPOAE/ before and after shooting and compare it with conventional pure tone audiometry. Ten male soldiers /20 ears/ were exposed to impulse noise /15 single rounds of live ammunition at the maximum C-we...

The frequency-following response (FFR) is an auditory-evoked response recorded at the scalp that captures the spectrotemporal properties of tonal stimuli. Previous investigations report that the amplitude of the FFR fluctuates as a function of stimulus frequency, a phenomenon thought to reflect multiple neural generators phase-locking to the stimulus with different response latencies. When phas...

Significant debate still exists about the biophysical mechanisms at work in otoacoustic emission (OAE) generation and how such may differ between mammals and non-mammals given gross morphological differences (e.g., existence of basilar membrane traveling waves, degree of tectorial membrane coupling). To further elucidate general principles at work, we examined the barn owl for interrelationship...

BACKGROUND The primary aim of newborn hearing screening is to detect permanent hearing loss. Because otoacoustic emissions (OAEs) and automated auditory brainstem response (AABR) are sensitive to hearing loss, they are often used as screening tools. On the other hand, false-positive results are most often because of transient outer- and middle ear conditions. Wideband acoustic immittance (WAI),...

42 ontemporary political summits and policy decisions, like those at Johannesburg and Rio de Janeiro and the Montreal and Kyoto Protocols, are clear evidence that world leaders and their communities are increasingly concerned about the Earth’s climate and its future. Policy makers frequently turn to scientists for definitive answers and pragmatic solutions to climate problems and too often focu...