Research Articles, Charles E. Via Jr. Department of Civil and Environmental Engineering

Effect of Silver Nanoparticles and Antibiotics on Antibiotic Resistance Genes in Anaerobic Digestion

Miller, Jennifer H.; Novak, John T.; Knocke, William R.; Young, Katherine; Pruden, Amy; Hong, Yanjuan; Vikesland, Peter J.; Hull, Matthew S.; Pruden, Amy (Water Environment Federation, 2013-05)

Water resource recovery facilities have been described as creating breeding ground conditions for the selection, transfer, and dissemination of antibiotic resistance genes (ARGs) among various bacteria. The objective of ...

A Micro-Scale Investigation on the Behaviors of Asphalt Mixtures under Freeze-Thaw Cycles Using Entropy Theory and a Computerized Tomography Scanning Technique

Xu, Huining; Li, Hengzhen; Tan, Yiqiu; Wang, Linbing; Hou, Yue (MDPI, 2018-01-23)

The thermodynamic behavior of asphalt mixtures is critical to the engineers since it directly relates to the damage in asphalt mixtures. However, most of the current research of the freeze-thaw damage of asphalt mixtures ...

Dynamic Travel Time Prediction using Pattern Recognition

Chen, Hao; Rakha, Hesham A.; McGhee, Catherine C. (TU Delft, 2013)

Travel-time information is an essential part of Advanced Traveler Information Systems (ATISs) and Advanced Traffic Management Systems (ATMSs). A key component of these systems is the prediction of travel times. From the ...

Evaluation of Resiliency of Transportation Networks After Disasters

Freckleton, Derek; Heaslip, Kevin; Louisell, William; Collura, John (The National Academies of Sciences, Engineering, and Medicine, 2012)

The resiliency of infrastructure, particularly as related to transportation networks, is essential to any society. This resiliency is especially vital in the aftermath of disasters. Recent events around the globe, including ...

Effects of inset floodplains and hyporheic exchange induced by in-stream structures on nitrate removal in a headwater stream

Hester, Erich T.; Hammond, Benjamin; Scott, Durelle T. (Elsevier, 2016-10-15)

Stream restoration efforts in the United States are increasingly aimed towards water quality improve-ment, yet little process-based guidance exists to compare pollutant removals from different restorationtechniques for ...

pH-Triggered Molecular Alignment for Reproducible SERS Detection via an AuNP/Nanocellulose Platform

Wei, Haoran; Vikesland, Peter J. (Nature, 2015-12-11)

The low affinity of neutral and hydrophobic molecules towards noble metal surfaces hinders their detection by surface-enhanced Raman spectroscopy (SERS). Herein, we present a method to enhance gold nanoparticle (AuNP) ...

Forecasting Model for Air Taxi, Commercial Airline, and Automobile Demand in the United States

Baik, Hojong; Trani, Antonio A.; Hinze, Nicolas; Swingle, Howard; Ashiabor, Senanu; Seshadri, Anand (Transportation Research Board of the National Academies, 2008)

A nationwide model predicts the annual county-to-county person roundtrips for air taxi, commercial airline, and automobile at 1-year intervals through 2030. The transportation systems analysis model (TSAM) uses the four-step ...

Relationship between Humidity and Influenza A Viability in Droplets and Implications for Influenza’s Seasonality

Yang, Wan; Elankumaran, Subbiah; Marr, Linsey C. (PLOS, 2012-10-03)

Humidity has been associated with influenza’s seasonality, but the mechanisms underlying the relationship remain unclear. There is no consistent explanation for influenza’s transmission patterns that applies to both temperate ...

Sources of airborne microorganisms in the built environment

Prussin II, Aaron J.; Marr, Linsey (BMC, 2015-12-22)

Each day people are exposed to millions of bioaerosols, including whole microorganisms, which can have both beneficial and detrimental effects. The next chapter in understanding the airborne microbiome of the built environment ...

Dynamics of Airborne Influenza A Viruses Indoors and Dependence on Humidity

Yang, Wan; Marr, Linsey (PLOS, 2011-06-24)

There is mounting evidence that the aerosol transmission route plays a significant role in the spread of influenza in temperate regions and that the efficiency of this route depends on humidity. Nevertheless, the precise ...

Metagenomic profiling of historic Colorado Front Range flood impact on distribution of riverine antibiotic resistance genes

Garner, Emily; Wallace, Joshua S.; Argoty, Gustavo Arango; Wilkinson, Caitlin; Fahrenfeld, Nicole; Heath, Lenwood S.; Zhang, Liqing; Arabi, Mazdak; Aga, Diana S.; Pruden, Amy (Nature, 2016-12-05)

Record-breaking floods in September 2013 caused massive damage to homes and infrastructure across the Colorado Front Range and heavily impacted the Cache La Poudre River watershed. Given the unique nature of this watershed ...

Interactive effects of temperature, organic carbon, and pipe material on microbiota composition and Legionella pneumophila in hot water plumbing systems

Proctor, Caitlin R; Dai, Dongjuan; Edwards, Marc A; Pruden, Amy (2017-10-04)

Abstract Background Several biotic and abiotic factors have been reported to influence the proliferation of microbes, including Legionella pneumophila, in hot water premise ...

Stresses and Instability in Coastal Systems: Sustaining Prosperity, Increasing Diversity and Achieving Resilience

Weiss, Robert; Bukvic, Anamaria; Dayer, Ashley A.; Fraser, James; Karpanty, Sarah; Catlin, Daniel; Juran, Luke; Wynne, Randy; Gohlke, Julia; Boyle, Kevin; Irish, Jennifer L; Leon, Roberto; Zobel, Christopher; Rees, Loren; Zhang, Yang; Schenk, Todd; Dixit, Priya (Virginia Tech, 2017-05-15)

More than half of the world’s human population lives within 40 miles of the sea. Coastal cities are the backbone of global finance, trade, manufacturing, and transportation. Millions of people worldwide travel to beaches ...

Convective Mixing in Distal Pipes Exacerbates Legionella pneumophila Growth in Hot Water Plumbing

Rhoads, William J.; Pruden, Amy; Edwards, Marc A. (MDPI, 2016-03-12)

Legionella pneumophila is known to proliferate in hot water plumbing systems, but little is known about the specific physicochemical factors that contribute to its regrowth. Here, L. pneumophila trends were ...

Relationship between Organic Carbon and Opportunistic Pathogens in Simulated Glass Water Heaters

Williams, Krista; Pruden, Amy; Falkinham, Joseph O.; Edwards, Marc (MDPI, 2015-06-09)

Controlling organic carbon levels in municipal water has been hypothesized to limit downstream growth of bacteria and opportunistic pathogens in premise plumbing (OPPPs). Here, the relationships between influent organic ...

Long-term performance of a 200 liter modularized microbial fuel cell system treating municipal wastewater: treatment, energy, and cost

Ge, Zheng; He, Zhen (Royal Society of Chemistry, 2016-02-04)

Microbial fuel cells (MFCs) have been intensively studied at a bench scale and the further development of this technology requires system scaling up and understanding of their performance under non-laboratory conditions. ...