Abstract—Colonoscopy is the most popular screening tool for colorectal cancer. Recent studies reported that retroflexion during colonoscopy helped to detect more polyps. Retroflexion is an endoscope maneuver that enables visualization of internal mucosa along the shaft of the endoscope, enabling visualization of the mucosa area that is difficult to see with typical forward viewing. This pa…
Plants have evolved sophisticated defensemechanisms against herbivores to help them adapt to the environment. Understanding the defense mechanisms in plants can help us control insects in a more effective manner. In this study, we found that compared with Tianlong 2 (a cultivated soybean with insect susceptibility), ED059 (a wild soybean line with insect resistance) contains sharper pubescence …
Abstract: Background and aims. Fruit ripening in Malus × domestica (apple) is controlled by ethylene. Work in model species has shown that following the detection of ethylene, the ETHYLENE INSENSITIVE 3 (EIN3) transcription factor is stabilized, leading to an increase in transcript accumulation of ethylene-responsive genes, such as POLYGALACTURONASE1 (PG1). In the absence of ethylene, the EI…
Abstract. Positron lifetime of ZnO-based scintillating glasses (55 x)SiO2–45ZnO–xBaF2 (x = 5, 10, 15 mol%) were measured with a conventional fast–fast spectrometer. Three positron lifetime components t1, t2, and t3 are - 0.23 ns, - 0.45 ns, and - 1.6 ns, respectively. All the three positron lifetime components first increase with increasing BaF2 concentration from 5 mol% to 10 mo…
Abstract. In the present work, the preparation of high surface area (256 m2 g-1) tungsten carbide microspheres (TCMSs) by the aid of a simple hydrothermal method is realized and the performance of the Pt electrocatalyst supported on the as-prepared TCMSs towards the oxygen reduction reaction (ORR) is investigated. The SEM micrographs indicated that both the synthesized carbon microspheres …
Abstract. Catalytic reduction of nitrate (NO3-) in groundwater over a Cu–Pd catalyst supported on active carbon was investigated in a gas–liquid co-current flow system at 298 K. Although Cu–Pd/active carbon, in which the Cu/Pdmolar ratio was more than 0.66, showed high activity, high selectivity for the formation of N2 and N2O (98%), and high durability for the reduction of 100 ppm N…
Abstract Nutrient management in biomass production systems serves to maximize yield and minimize production costs and environmental impact. Loss of soil nutrients with harvested biomass can be reduced by the judicious choice of genotype and harvest time. Sustainable production of switchgrass for biofuel will depend, in part, on breeding of varieties that are conservative in their use of soil…
Monolayer-FePt nanoparticles/boron carbide-matrix composite thin films on Si substrate were fabricated by a two-step method. Scanning electron microscopy indicates that the 6 nm FePt nanoparticles are well-separated in the monolayer with an average interparticle distance of
In this study,we examine the food environment facing low-income urban and rural communities in Arkansas over the 2004–2010 period.We find no meaningful evidence that urban communities with higher minority populations or communities with lower median income face less access to grocery stores.While urban minority areas were more likely to be classified as food deserts, the effect was small and…