Semivolatile organic compounds (SVOCs) are widely detected in many indoor environments due to their frequent use building materials, textiles, furniture, electronics, and other consumer products. Biomarkers of SVOC exposures have been consistently measured biological samples across the globe, presenting uncertainty about potential impacts on sensitive populations. To begin unravelling dynamics between gut microbiome maturation chronic exposure complex chemical mixtures, this study...

Nitrogen pollution in stormwater runoff is among the most difficult to mitigate via bioretention, particularly for dissolved species like NO3−-NO2− (NOx). Bioretention soil mix (BSM) amended with compost often leaches nitrogen, making system a nitrogen source rather than sink. Several design modifications have been proposed enhance removal pathways, microbial denitrification, by creating anoxic zones, but studies report varied rates. This study evaluated bioretention systems equipped...

Due to the sequence homology between bacterial 16S rRNA gene and plant chloroplast mitochondrial DNA, taxonomic characterization of microbiome using amplicon-based high throughput sequencing often results in overwhelming presence plant-affiliated reads, preventing thorough description plant-associated microbial communities. In this work we developed a PCR blocking primer assay targeting taxonomically informative V5-V6 region order reduce DNA co-amplification, increase diversity coverage...

Gives an example of a short-range Ising model with unique ground state two unusual properties: it has some continuous spectrum, and fractal symmetry.

Following wildfires, partially combusted biomass remains on the forest floor and erosion from landscape can release dissolved pyrogenic organic matter (dPyOM) to surface waters. Therefore, post-fire alterations (DOM) in aquatic systems may play a vital role DOM stability biogeochemical cycles. Dissolved PyOM biodegradation poorly understood is expected vary with combustion temperature fuel source. In this study laboratory heating leaching of materials (soil litter) were used compare...

Cocopeat, a by-product of coconut processing plants widely available in Vietnam, Thailand, Cambodia, the Philippines, and Indonesia, was studied for its ability to support biological nutrient removal lab-scale vertical flow columns treating simulated wastewater. Treatment performance cocopeat compared sphagnum peat, traditional packing medium, Celite, an inert clay pellet. Removal efficiencies nitrogen, phosphorus, oxygen demand (BOD) were measured over period 325 days. During treatment...

Abstract A test method was developed to identify those variables important for assessing the performance of ultrasonic surgical devices in ex vivo ligature sealing porcine carotid and uterine arteries. Ruggedness testing using a small sample size pilot experiments conducted newly an effort assess usefulness this methodology that might warrant further testing. The development included use custom-designed prototypic tension device load-controlled vessel stretching during saline perfusion...

Abstract Triclosan (TCS) is a broad range antimicrobial agent used in many personal care products, which commonly discharged to wastewater treatment facilities (WWTFs). This study examined the impact of TCS on performance using laboratory bench-scale sequencing batch reactors (SBRs) coupled with anaerobic digesters. The SBRs were continuously fed synthetic amended or without 0.68 μM TCS, aim determining effect chronic exposure as opposed pulse addition previously studied. Overall, present...

The consumption of transgenic crops and their by-products has become increasingly common in the United States. Yet, uncertainty remains regarding fate behavior DNA within food matrices once it exits digestive track enters into wastewater treatment plants (WWTPs). Because many have historically contained antibiotic resistance genes as selection markers, understanding uptake these transgenes by environmental microbes is critical importance. To investigate free crop DNA, thermophilic anaerobic...

More sustainable approaches to agriculture are urgently needed protect existing resources and optimize crop yields provide food for a growing global human population. agricultural practices that utilize plant–microbe relationships across cultivation needed. The main objectives of this study were track the prokaryotic fungal microbiomes associated with key growth stages developing maize evaluate among nitrogen cycling bacteria major genera including those known contain arbuscular mycorrhizal...

The use of transgenic crops has become increasingly common in the United States over last several decades. Increasing evidence suggests that DNA may be protected from enzymatic digestion and acid hydrolysis digestive tract, suggesting crop-derived transgenes enter into wastewater treatment plants (WWTPs) intact. Given historical antibiotic resistance genes as selection markers crop development, it is important to consider fate these transgenes. Herein we detected quantified WWTPs. All viable...

Rising global populations have amplified food scarcity and ushered in the development of genetically modified (GM) crops containing small interference RNAs (siRNAs) that control gene expression to overcome these challenges. The use RNA (RNAi) agriculture remains controversial due uncertainty regarding unintended release genetic material downstream nontarget effects, which not been assessed environmental bacteria date. To evaluate impacts siRNAs used on bacteria, this study microbial growth...

During Constitution Week, Kennesaw State University Libraries organized a series of engaging events from September 16 to 20. The festivities kicked off with faculty panel discussing the 25th Amendment and presidential succession, featuring insights political science faculty. Voter registration were held on both Marietta campuses, allowing students register, check their status, interact historical figures, most importantly therapy dog library mascot, Summer Corgi. A highlight week was...

Stormwater is a major source of many contaminants emerging concern, which can be toxic to both aquatic and terrestrial organisms. This project aimed identify novel biodegraders tire wear particle (TWP) associated with coho salmon mortality.This study has (i) characterized the prokaryotic communities stormwater in urban rural settings; (ii) evaluated ability isolates degrade two model TWP contaminants, hexa(methoxymethyl)melamine 1,3-diphenylguanidine; (iii) toxicological impact these on...