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Soil microbial community toxic response to atrazine and its residues under atrazine and lead contamination.

• Qinglin Chen, Baoshan Yang, Hui Wang, Fei He, Yongchao Gao, Ryan A. Scheel
• Environmental science and pollution research…
• 2015

Intensive use of atrazine and extensive dispersal of lead (Pb) have occurred in farmland with chemical agriculture development. However, the toxicological effect of their presence on soil… (More)

Characterizing Composite User-Device Touchscreen Physical Unclonable Functions (PUFs) for Mobile Device Authentication

• Ryan A. Scheel, Akhilesh Tyagi
• TrustED@CCS
• 2015

Mobile systems have unique authentication requirements. A composite user-device identity that is computationally difficult to decompose into its user and device contribution is better suited for… (More)

Advantages of agile methodologies for software and product development in a capstone design project

• Diane T. Rover, Curtis Ullerich, Ryan A. Scheel, Julie Wegter, Cameron Whipple
• 2014 IEEE Frontiers in Education Conference (FIE…
• 2014

Professional skills are often emphasized in a capstone engineering design course, especially in relation to addressing ABET Engineering Criteria. Learning of these skills is typically a product of… (More)

Enhancing poly(3-hydroxyalkanoate) production in Escherichia coli by the removal of the regulatory gene arcA

• Ryan A. Scheel, Liyuan Ji, Benjamin R. Lundgren, Christopher T Nomura
• AMB Express
• 2016

Recombinant Escherichia coli is a desirable platform for the production of many biological compounds including poly(3-hydroxyalkanoates), a class of naturally occurring biodegradable polyesters with… (More)

Consolidated bioprocessing of poly(lactate-co-3-hydroxybutyrate) from xylan as a sole feedstock by genetically-engineered Escherichia coli.

• Lucia Salamanca-Cardona, Ryan A. Scheel, +4 authors Christopher T Nomura
• Journal of bioscience and bioengineering
• 2016

Consolidated bioprocessing of lignocellulose is an attractive strategy for the sustainable production of petroleum-based alternatives. One of the underutilized sources of carbon in lignocellulose is… (More)

Deletion of the pflA gene in Escherichia coli LS5218 and its effects on the production of polyhydroxyalkanoates using beechwood xylan as a feedstock.

• Lucia Salamanca-Cardona, Ryan A. Scheel, +4 authors Christopher T Nomura
• Bioengineered
• 2014

Engineering of microorganisms to directly utilize plant biomass as a feedstock for the biosynthesis of value-added products such as bioplastics is the aim of consolidated bioprocessing. In previous… (More)

Effect of acetate as a co-feedstock on the production of poly(lactate-co-3-hydroxyalkanoate) by pflA-deficient Escherichia coli RSC10.

• Lucia Salamanca-Cardona, Ryan A. Scheel, +5 authors Christopher T Nomura
• Journal of bioscience and bioengineering
• 2017

Developing Escherichia coli strains that are tolerant to acetate toxicity is important in light of an increased interest in the efficient utilization of lignocellulosic biomass feedstocks for the… (More)

The metabolism of (R)-3-hydroxybutyrate is regulated by the enhancer-binding protein PA2005 and the alternative sigma factor RpoN in Pseudomonas aeruginosa PAO1.

• Benjamin R. Lundgren, Joshua R Harris, Zaara Sarwar, Ryan A. Scheel, Christopher T Nomura
• Microbiology
• 2015

A variety of soil-dwelling bacteria produce polyhydroxybutyrate (PHB), which serves as a source of energy and carbon under nutrient deprivation. Bacteria belonging to the genus Pseudomonas do not… (More)

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