Juan M. Garcia-Lara

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We propose a method for determining the mortality rate for allochthonous bacteria released in aquatic environments without interference due to the loss of culturability in specific culture media. This method consists of following the disappearance of radioactivity from the trichloroacetic acid-insoluble fraction in water samples to which(More)
We investigate the persistence of year-over-year changes in the components of operating profit. Using industry-level data, we find that changes in the volume of output exhibit a more persistent effect on profitability than changes in output prices, labor cost, labor productivity, intermediate input cost, and intermediate input productivity. Furthermore, we(More)
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