Oxidative modification of low density lipoprotein (LDL) appears to play an important role in atherogenesis. Although the precise mechanisms of LDL oxidation in vivo are unknown, several lines of evidence implicate myeloperoxidase and reactive nitrogen species, in addition to ceruloplasmin and 15-lipoxygenase. Myeloperoxidase generates a number of reactive species, including hypochlorous acid, c...

Submitted for the MAR10 Meeting of The American Physical Society Novel Resistive Switching in MgO with Nitrogen Doping CHENGHAN YANG, Stanford University, XIN JIANG, MAHESH SAMANT, BRIAN HUGHES, LI GAO, ANDREW KELLOCK, STUART PARKIN, IBM Almaden Research Center — Resistive switching in oxide thin films has been extensively explored as a candidate for the next generation nonvolatile memory. The ...

Exposure to air pollution during pregnancy has been linked to the risk of childhood cancer, but the evidence remains inconclusive. In the present study, we used land use regression modeling to estimate prenatal exposures to traffic exhaust and evaluate the associations with cancer risk in very young children. Participants in the Air Pollution and Childhood Cancers Study who were 5 years of age ...

Exposure to air pollution during pregnancy has been linked to the risk of childhood cancer, but the evidence remains inconclusive. In the present study, we used land use regression modeling to estimate prenatal exposures to traffic exhaust and evaluate the associations with cancer risk in very young children. Participants in the Air Pollution and Childhood Cancers Study who were 5 years of age ...

Soil and sea bacteria produce a small amount of nitrous oxide (N(2)O); a small part of this N(2)O is photochemically converted to nitric oxide (NO) in the stratosphere. This process has recently been shown to be the principal source of the active oxides of nitrogen (NO and NO(2)) in the stratosphere. The active oxides of nitrogen catalytically destroy ozone, and NO and NO(2) appear to be a prin...

In this work, experimental and long-term one-dimensional mathematical modelling approaches were combined to investigate the mechanisms and the main drivers influencing on emission of nitrous oxide in a full scale anammox plant whereby anaerobic ammonium oxidation (anammox), ammonia oxidizing bacteria, nitrite oxidizing bacteria and heterotrophic denitrifying bacteria enriches in activated sludg...

Molecular contacts are generally poorly conducting because their energy levels tend to lie far from the Fermi energy of the metal contact, necessitating undesirably large gate and bias voltages in molecular electronics applications. Molecular radicals are an exception because their partly filled orbitals undergo Kondo screening, opening the way to electron passage even at zero bias. Whereas tha...

Nitrogen (N) management strategies that maintain high crop productivity with reduced water quality impacts are needed for tile-drained landscapes of the US Midwest. The objectives of this study were to determine the effect of N application rate, timing, and fall nitrapyrin addition on tile drainage nitrate losses, corn ( L.) yield, N recovery efficiency, and postharvest soil nitrate content ove...

Atmospheric reactions and slow geological processes controlled Earth's earliest nitrogen cycle, and by ~2.7 billion years ago, a linked suite of microbial processes evolved to form the modern nitrogen cycle with robust natural feedbacks and controls. Over the past century, however, the development of new agricultural practices to satisfy a growing global demand for food has drastically disrupte...

Human activities related to nitrogen have caused an overarching problem ‐ an imbalance in the global nitrogen cycle. Through conventional wastewater treatment processes, mainly a combination of aerobic nitrification and anoxic denitrification processes, ammonia and other forms of nitrogen can be converted into nitrogen gas and return back to the nitrogen cycle. However, this approach not only r...