Eric May
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View article: Coloured glass coating of quartz beads before the 13th century: An undocumented sapphire imitation
Coloured glass coating of quartz beads before the 13th century: An undocumented sapphire imitation Open
The Abbey of Saint‐Maurice d'Agaune in Switzerland exceptionally accorded access to its treasure pieces for conservation purposes. The restoration of the Great Shrine of Saint Maurice (13th century) gave us the opportunity to examine the g…
View article: Bacterial diversity in agricultural drainage ditches shifts with increasing urea-N concentrations
Bacterial diversity in agricultural drainage ditches shifts with increasing urea-N concentrations Open
Urea-based fertilizers applied to crop fields can enter the surface waters of adjacent agricultural drainage ditches and contribute to the nitrogen (N) loading in nearby watersheds. Management practices applied in drainage ditches promote …
View article: Variations in Bacterial Communities and Antibiotic Resistance Genes Across Diverse Recycled and Surface Water Irrigation Sources in the Mid-Atlantic and Southwest United States: A CONSERVE Two-Year Field Study
Variations in Bacterial Communities and Antibiotic Resistance Genes Across Diverse Recycled and Surface Water Irrigation Sources in the Mid-Atlantic and Southwest United States: A CONSERVE Two-Year Field Study Open
Reduced availability of agricultural water has spurred increased interest in using recycled irrigation water for U.S. food crop production. However, there are significant knowledge gaps concerning the microbiological quality of these water…
View article: Levels of Salmonella enterica and Listeria monocytogenes in Alternative Irrigation Water Vary Based on Water Source on the Eastern Shore of Maryland
Levels of Salmonella enterica and Listeria monocytogenes in Alternative Irrigation Water Vary Based on Water Source on the Eastern Shore of Maryland Open
In the last several decades, Maryland’s Eastern Shore has seen significant declines in groundwater levels. While this area is not currently experiencing drought conditions or water scarcity, this research represents a proactive approach.
View article: Seasonal and temporal factors leading to urea‐nitrogen accumulation in surface waters of agricultural drainage ditches
Seasonal and temporal factors leading to urea‐nitrogen accumulation in surface waters of agricultural drainage ditches Open
Urea‐nitrogen (N) is commonly applied to crop fields, yet it is not routinely monitored despite its association with reduced water quality and its ability to increase toxicity of certain phytoplankton species. The purpose of this work was …
View article: Tolerance of Cobb-500 broilers to a supplemental Clostridium fermentation solubles broth in the diet
Tolerance of Cobb-500 broilers to a supplemental Clostridium fermentation solubles broth in the diet Open
Summary: Volatile short-chain fatty acids such as butyric and acetic acid have been supplemented in poultry rations as a feed ingredient and nutritive supplement. A novel Clostridium fermentation solubles broth (MiruTyton), containing shor…
View article: Longitudinal Assessment of the Dynamics of Escherichia coli, Total Coliforms, <i>Enterococcus</i> spp., and <i>Aeromonas</i> spp. in Alternative Irrigation Water Sources: a CONSERVE Study
Longitudinal Assessment of the Dynamics of Escherichia coli, Total Coliforms, <i>Enterococcus</i> spp., and <i>Aeromonas</i> spp. in Alternative Irrigation Water Sources: a CONSERVE Study Open
Increasing demands for fresh fruit and vegetables, a variable climate affecting agricultural water availability, and microbial food safety goals are pressing the need to identify new, safe, alternative sources of irrigation water. Our stud…
View article: Aeromonas hydrophila, Bacillus thuringiensis, Escherichia coli and Pseudomonas aeruginosa utilization of Ammonium-N, Nitrate-N and Urea-N in culture
Aeromonas hydrophila, Bacillus thuringiensis, Escherichia coli and Pseudomonas aeruginosa utilization of Ammonium-N, Nitrate-N and Urea-N in culture Open
View article: Prevalence of Salmonella and Listeria monocytogenes in non-traditional irrigation waters in the Mid-Atlantic United States is affected by water type, season, and recovery method
Prevalence of Salmonella and Listeria monocytogenes in non-traditional irrigation waters in the Mid-Atlantic United States is affected by water type, season, and recovery method Open
Irrigation water contaminated with Salmonella enterica and Listeria monocytogenes may provide a route of contamination of raw or minimally processed fruits and vegetables. While previous work has surveyed specific and singular types of agr…
View article: Pharmaceuticals, herbicides, and disinfectants in agricultural water sources
Pharmaceuticals, herbicides, and disinfectants in agricultural water sources Open
View article: The Possible Roles of Escherichia coli in the Nitrogen Cycle
The Possible Roles of Escherichia coli in the Nitrogen Cycle Open
This study was designed to determine the response of Escherichia coli to three different nutrient sources. In this study, E. coli was exposed to concentrations of ammonia as ammonium chloride and nitrate as sodium nitrate at 0.5, 1.0 and 2…
View article: Nutrient cycling potential within microbial communities on culturally important stoneworks
Nutrient cycling potential within microbial communities on culturally important stoneworks Open
Summary Previous studies on microbes associated with deterioration of cultural heritage (CH) stoneworks have revealed a diverse microbiota adapted to stresses such as low nutrients, aridity and high salinity, temperatures and radiation. Ho…
View article: Urea Release by Intermittently Saturated Sediments from a Coastal Agricultural Landscape
Urea Release by Intermittently Saturated Sediments from a Coastal Agricultural Landscape Open
Urea‐N is linked to harmful algal blooms in lakes and estuaries, and urea‐N‐based fertilizers have been implicated as a source. However, the export of urea‐N‐based fertilizers appears unlikely, as high concentrations of urea‐N are most com…
View article: Enhanced Denitrification Bioreactors Hold Promise for Mid‐Atlantic Ditch Drainage
Enhanced Denitrification Bioreactors Hold Promise for Mid‐Atlantic Ditch Drainage Open
Core Ideas Bioreactors can be designed to remove nitrate from drainage ditches. Designing bioreactors for ditch drainage requires site‐specific flexibility. All mid‐Atlantic ditch bioreactors tested removed nitrate from drainage water. Pra…
View article: Persistence and Surface Transport of Urea-Nitrogen: A Rainfall Simulation Study
Persistence and Surface Transport of Urea-Nitrogen: A Rainfall Simulation Study Open
Studies of harmful algal blooms and associated urea concentrations in the Chesapeake Bay and in coastal areas around the globe strongly suggest that elevated urea concentrations are associated with harmful algal blooms. The observed increa…
View article: Diversity of archaeal and bacterial communities on exfoliated sandstone from Portchester Castle (UK)
Diversity of archaeal and bacterial communities on exfoliated sandstone from Portchester Castle (UK) Open