78 research outputs found

    Exercising Musical Minds: Phrenology and Music Pedagogy in London circa 1830

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    This is the final version of the article. It first appeared from the University of California Press via http://dx.doi.org/10.1525/ncm.2015.39.2.9

    Correlations between in situ denitrification activity and nir-gene abundances in pristine and impacted prairie streams

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    Denitrification is a process that reduces nitrogen levels in headwaters and other streams. We compared nirS and nirK abundances with the absolute rate of denitrification, the longitudinal coefficient of denitrification (i.e., Kden, which represents optimal denitrification rates at given environmental conditions), and water quality in seven prairie streams to determine if nir-gene abundances explain denitrification activity. Previous work showed that absolute rates of denitrification correlate with nitrate levels; however, no correlation has been found for denitrification efficiency, which we hypothesise might be related to gene abundances. Water-column nitrate and soluble-reactive phosphorus levels significantly correlated with absolute rates of denitrification, but nir-gene abundances did not. However, nirS and nirK abundances significantly correlated with Kden, as well as phosphorus, although no correlation was found between Kden and nitrate. These data confirm that absolute denitrification rates are controlled by nitrate load, but intrinsic denitrification efficiency is linked to nirS and nirK gene abundances

    Marie FĂŒrstin zu Hohenlohe

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    Wendelin Weißheimer

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    Annual; Electronic access as of Nov. 19, 2007: 2002/2003-; Description based on: 2002/2003; title from PDF cover (viewed Nov. 19, 2007

    Franz Liszt and his World

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