Stephanie DeVries
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View article: Bioleaching of Gold in Mine Tailings by Alcaligenes faecalis
Bioleaching of Gold in Mine Tailings by Alcaligenes faecalis Open
We conducted a series of column experiments on tailing heap samples from the Picacho mine in California to determine the ability of the native Gram-negative bacteria, Alcaligenes faecalis, to leach gold. To mimic heap leaching using our te…
View article: Characterization of site‐specific vegetation activity in Alaskan wet and dry tundra as related to climate and soil state
Characterization of site‐specific vegetation activity in Alaskan wet and dry tundra as related to climate and soil state Open
We present discrete (2‐h resolution) multi‐year (2008–2017) in situ measurements of seasonal vegetation growth and soil biophysical properties from two sites on Alaska's North Slope, USA, representing dry and wet sedge tundra. We examine m…
View article: A Groundwater-Flow Model and Effective Nitrate Calculator for Waupaca, Wisconsin
A Groundwater-Flow Model and Effective Nitrate Calculator for Waupaca, Wisconsin Open
Land parcels of interest with respect to elevated nitrate . . . .32 24.Observed nitrate in monitoring wells MW 1-MW 4 from 1993 to 2018 . .34 25.Observed nitrate in monitoring wells MW 5-MW 8 from 1993 to 2018 . .35 26.Schematic of groundw…
View article: Comparison of Satellite-Based Sea Surface Temperature to In Situ Observations Surrounding Coral Reefs in La Parguera, Puerto Rico
Comparison of Satellite-Based Sea Surface Temperature to In Situ Observations Surrounding Coral Reefs in La Parguera, Puerto Rico Open
Coral reefs are among the most biologically diverse ecosystems on Earth. In the last few decades, a combination of stressors has produced significant declines in reef expanse, with declining reef health attributed largely to thermal stress…
View article: Beyond the Obvious: Emerging Contaminants and Biogeochemistry as a Cause and Solution for Nitrogen Pollution
Beyond the Obvious: Emerging Contaminants and Biogeochemistry as a Cause and Solution for Nitrogen Pollution Open
Following a comprehensive review of the occurrence and impacts of antibiotics and related pharmaceutical compounds on the terrestrial N-cycle, three experiments were performed to explore the topic of biogeochemistry as a source or a sink f…