منابع مشابه
Fitting a Wide Dynamic Range of Speech into a Narrow Dynamic Range of Hearing
range—from below the normal threshold of hearing to above the normal level of discomfort or even pain. Most of the time, people with normal hearing can arrange things so that sounds are between their threshold and discomfort levels. This becomes difficult to achieve for people with hearing loss; the difficulty in achieving it increases with the size of the loss. There is an obvious need for hea...
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Isolation of high-quality RNA is one of the most crucial methods in molecular biology. RNA extraction from woody plants has been problematic due to the presence of rigid and woody tissues, large amounts of polysaccharides, polyphenols and other secondary metabolites. Here we present a suitable protocol for RNA isolation from a wide range of woody plants that includes eight gymnosperms and four ...
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Nigella sativa has attracted healers in ancient civilizations and researchers in recent times. Traditionally, it has been used in different forms to treat many diseases including asthma, hypertension, diabetes, inflammation, cough, bronchitis, headache, eczema, fever, dizziness and influenza. Experimentally, it has been demonstrated that N. sativa extracts and the main constituent of their vola...
متن کاملThe objective and subjective evaluation of low-frequency expansion in wide dynamic range compression hearing instruments.
The effects of low-frequency expansion on the objective and subjective evaluation of four channel in-the-ear hearing instruments was investigated. Three expansion settings were programmed in each device: expansion off, expansion restricted to channel one, and expansion restricted to channels one and two. Objective evaluations were conducted in quiet (Connected Speech Test) and in noise (Hearing...
متن کاملAcclimatization in wide dynamic range multichannel compression and linear amplification hearing aids.
Acclimatization was studied in hearing-impaired patients with no previous hearing aid (HA) experience who were fit bilaterally with either wide dynamic range multichannel compression (WDRMCC) or linear amplification (LA) HAs. Throughout 40 weeks of normal HA use, we monitored changes in nonsense syllable perception in speech-spectrum noise. Syllable recognition for WDRMCC users improved by 4.6%...
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ژورنال
عنوان ژورنال: BioScience
سال: 2008
ISSN: 1525-3244,0006-3568
DOI: 10.1641/b580717