نتایج جستجو برای: supported oxidants
تعداد نتایج: 201800 فیلتر نتایج به سال:
Free radicals are involved in the formation of both atherosclerosis and thrombosis. Therefore, considerable interest has recently been aroused by their role in the development of ischemic cerebral injury. Experimental observations suggest that antioxidants could reduce cerebral arterial vasospasm, reduce infarct size and prevent the development of both atherosclerosis and thrombosis. However, c...
Chronic kidney disease is a worldwide public health problem that affects approximately 10% of the US adult population and is associated with a high prevalence of cardiovascular disease and high economic cost. Chronic renal insufficiency, once established, tends to progress to end-stage kidney disease, suggesting some common mechanisms for ultimately causing scarring and further nephron loss. Th...
Free radicals are species with one or more unpaired electrons. The unpaired electron results in a species that is often highly reactive. Free radicals have a wide range of reactions; two broad classes of reactions are electron transfer and addition reactions resulting in covalent bond formation. Free radicals can be classified as reducing (donating an electron to an acceptor) or oxidizing (acce...
Cochlear-implant (CI) users often have difficulties perceiving speech in noisy environments. Although this problem likely involves auditory scene analysis, few studies have examined sequential segregation in CI listening situations. The present study aims to assess the possible role of fundamental frequency (F(0)) cues for the segregation of vowel sequences, using a noise-excited envelope vocod...
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