Index Catalog // ScholarsArchive@OSU

Total kinetic energy release in the fast neutron induced fission of actinide nuclei

Creator:: Loveland, Walter
Abstract:: The total kinetic energy release and fission mass distributions for the fast neutron (En = 3–100 MeV) induced fission of 232Th, 233U, 235U, 237Np, 239Pu, 240Pu, and 242Pu have been measured using the LANSCE facility. The neutron energies were deduced from time-of- flight measurements. The fission fragments were detected using...
Resource Type:: Article

Linden (Tilia cordata) associated bumble bee mortality : metabolomic analysis of nectar and bee muscle

Creator:: Lande, Claire, Rao, Sujaya, Morre, Jeffrey T., Galindo, Gracie, Kirby, Julie, Reardon, Patrick N., Bobe, Gerd, and Stevens, Jan Frederik
Abstract:: Linden (Tilia spp.), a profusely flowering temperate tree that provides bees with vital pollen and nectar, has been associated with bumble bee (Bombus spp.) mortality in Europe and North America. Bee deaths have been attributed, with inadequate evidence, to toxicity from mannose in nectar or starvation due to low nectar...
Resource Type:: Article

Air quality and elemental enrichment factors of aerosol particulate matter in Riyadh City, Saudi Arabia

Creator:: Rushdi, Ahmed I., Al-Mutlaq, Khalid F., Al-Otaibi, Mubarak, El-Mubarak, Aarif H., and Simoneit, Bernd R. T.
Abstract:: Air particulate matter (PM) samples were collected from June 2006 to May 2007 for determination chemical elements. PM samples were taken in two size fractions (PM₂.₅ and PM₁₀) with MiniVolume air samplers on rooftops of various buildings (15-25 m above ground) in the city of Riyadh. The samples were subjected...
Resource Type:: Preprint and Article

Giant modulation of the electronic band gap of carbon nanotubes by dielectric screening

Creator:: Aspitarte, Lee, McCulley, Daniel R., Bertoni, Andrea, Island, Joshua O., Ostermann, Marvin, Rontani, Massimo, Steele, Gary A., and Minot, Ethan D.
Abstract:: Ion pairs and solubility related to ion-pairing in water influence many processes in nature and in synthesis including efficient drug delivery, contaminant transport in the environment, and self-assembly of materials in water. Ion pairs are difficult to observe spectroscopically because they generally do not persist unless extreme solution conditions are...
Resource Type:: Article

Electronic and relativistic contributions to ion-pairing in polyoxometalate model systems

Creator:: Sures, Dylan J., Serapian, Stefano A., Kozma, Károly, Molina, Pedro I., Bo, Carles, and Nyman, May
Abstract:: Ion pairs and solubility related to ion-pairing in water influence many processes in nature and in synthesis including efficient drug delivery, contaminant transport in the environment, and self-assembly of materials in water. Ion pairs are difficult to observe spectroscopically because they generally do not persist unless extreme solution conditions are...
Resource Type:: Article

High-resolution infrared studies of perdeutero-spiropentane, C₅D₈

Creator:: Erickson, Blake Alexander, Ju, X., Nibler, Joesph W., Beaudry, C. M., and Blake, T. A.
Abstract:: Perdeutero-spiropentane (C₅D₈) has been synthesized and infrared and Raman spectra are reported for the first time. Wavenumber assignments are made for most of the fundamental vibrational modes. Gas phase infrared spectra were recorded at a resolution (0.002 cm⁻¹) sufficient to resolve individual rovibrational lines and show evidence of strong Coriolis...
Resource Type:: Article

Aerobic Bioremediation of PAH Contaminated Soil Results in Increased Genotoxicity and Developmental Toxicity

Creator:: Chibwe, Leah, Geier, Mitra C., Nakamura, Jun, Tanguay, Robert L., Aitken, Michael D., and Simonich, Staci L. Massey
Abstract:: This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by the American Chemical Society and can be found at: https://doi.org/10.1021/acs.est.5b00499
Resource Type:: Article

Organic Tracers from Asphalt in Propolis Produced by Urban Honey Bees, Apis mellifera Linn.

Creator:: Alqarni, Abdulaziz S., Rushdi, Ahmed I., Owayss, Ayman A., Raweh, Hael S., El-Mubarak, Aarif H., and Simoneit, Bernd R. T.
Abstract:: Propolis is a gummy material produced by honey bees to protect their hives and currently has drawn the attention of researchers due to its broad clinical use. It has been reported, based only on observations, that honey bees also collect other non-vegetation substances such as paint or asphalt/tar to make...
Resource Type:: Article

Na⁺ intercalation pseudocapacitance in graphene-coupled titanium oxide enabling ultra-fast sodium storage and long-term cycling

Creator:: Chen, Chaoji, Wen, Yanwei, Hu, Xianluo, Ji, Xiulei, Yan, Mengyu, Mai, Liqiang, Hu, Pei, Shan, Bin, and Huang, Yunhui
Abstract:: Sodium-ion batteries are emerging as a highly promising technology for large-scale energy storage applications. However, it remains a significant challenge to develop an anode with superior long-term cycling stability and high-rate capability. Here we demonstrate that the Na⁺ intercalation pseudocapacitance in TiO₂/graphene nanocomposites enables high-rate capability and long cycle life...
Resource Type:: Article

Heterogeneous Reactions of PM-Bound PAHs and NPAHs with NO₃/N₂O₅, OH Radicals, and O₃ under Simulated Long-Range Atmospheric Transport Conditions: Reactivity and Mutagenicity

Creator:: Jariyasopit, Narumol, Zimmermann, Kathryn, Schrlau, Jill, Arey, Janet, Atkinson, Roger, Yu, Tian-Wei, Dashwood, Roderick H., Tao, Shu, and Simonich, Staci L. Massey
Abstract:: The heterogeneous reactions of ambient particulate matter (PM)-bound polycyclic aromatic hydrocarbons (PAHs) and nitro-PAHs (NPAHs) with NO₃/N₂O₅, OH radicals, and O₃ were studied in a laboratory photochemical chamber. Ambient PM[subscript 2.5] and PM₁₀ samples were collected from Beijing, China and Riverside, California, and exposed under simulated atmospheric long-range transport conditions...
Resource Type:: Article

Influence of Asian and Western U.S. Urban Areas and Fires on the Atmospheric Transport of PAHs, PCBs, and FTOHs in the Western U.S.

Creator:: Primbs, Toby, Piekarz, Arkadiusz, Wilson, Glenn, Schmedding, David, Higginbotham, Carol, Field, Jennifer, and Simonich, Staci
Abstract:: Atmospheric measurements of semivolatile organic compounds (SOCs) were made at Mt. Bachelor Observatory (MBO), located in Oregon’s Cascade Range, to understand the trans-Pacific and regional transport of SOCs from urban areas. High volume air sampling (~644 m³ for 24 hour periods) of both the gas and particulate phases was conducted...
Resource Type:: Article

Catalyst selective and regiodivergent O- to C- or N-carboxyl transfer of pyrazolyl carbonates: synthetic and computational studies

Creator:: Gould, Eoin, Walden, Daniel M., Kasten, Kevin, Johnston, Ryne C., Wu, Jiufeng, Slawin, Alexandra M., Mustard, Thomas J. L., Johnston, Brittany, Davies, Tony, Cheong, Paul Ha-Yeon, and Smith, Andrew D.
Abstract:: The regiodivergent O- to C- or N-carboxyl transfer of pyrazolyl carbonates is described, with DMAP giving preferential N-carboxylation and triazolinylidenes promoting selective C-carboxylation (both with up to >99 : 1 regioselectivity). An enantioselective O- to C-carboxyl variant using NHC catalysis is demonstrated (up to 92% ee), while mechanistic and DFT studies outline...
Resource Type:: Article

Synthesis of α-Ketoester- and α-Hydroxyester-Substituted Isoindazoles via the Thermodynamic Coarctate Cyclization of Ester-Terminated Azo-Ene-Yne Systems

Creator:: McClintock, Sean P., Forster, Nathan, Herges, Rainer, and Haley, Michael M.
Abstract:: The synthesis of isoindazoles bearing α-ketoester and α-hydroxyester groups via the coarctate cyclization of ester terminated azo-ene-yne precursors is described. Whereas previous studies on isoindazole formation have shown the reaction to proceed through a kinetic coarctate pathway, functionalization of the terminal acetylene with a methyl ester sufficiently stabilizes the carbene...
Resource Type:: Article

Influence of Asian and Western United States Agricultural Areas and Fires on the Atmospheric Transport of Pesticides in the Western United States

Creator:: Primbs, Toby, Wilson, Glenn, Schmedding, David, Higginbotham, Carol, and Simonich, Staci Massey
Abstract:: Historic and current use pesticides (HUPs and CUPs), with respect to use in the United States and Canada, were identified in trans-Pacific and regional air masses at Mt. Bachelor Observatory (MBO), a remote high elevation mountain in Oregon’s Cascade Range located in the United States, during the sampling period of...
Resource Type:: Article

Quantification of Complex Polycyclic Aromatic Hydrocarbon Mixtures in Standard Reference Materials Using GC×GC/ToF-MS

Creator:: Manzano, Carlos, Hoh, Eunha, and Simonich, Staci L. Massey
Abstract:: This research is the first to quantify complex PAH mixtures in NIST SRMs using comprehensive two-dimensional gas chromatography coupled to time-of-flight mass spectrometry (GC×GC/ToF-MS), with and without extract cleanup, and reports previously unidentified PAH isomers in the NIST SRMs. We tested a novel, high orthogonality GC column combination (LC-50×NSP-35), as...
Resource Type:: Article

Trace Analysis of Surfactants in Corexit Oil Dispersant Formulations and Seawater

Creator:: Place, Benjamin J., Perkins, Matt J., Sinclair, Ewan, Barsamian, Adam L., Blakemore, Paul R., and Field, Jennifer A.
Abstract:: After the April 2010 explosion on the Deepwater Horizon oil rig, and subsequent release of millions of barrels of oil, two Corexit oil dispersant formulations were used in unprecedented quantities both on the surface and sub-surface of the Gulf of Mexico. Although the dispersant formulations contain four classes of surfactants,...
Resource Type:: Article

Protein modifications by electrophilic lipoxidation products: Adduct formation, chemical strategies and tandem mass spectrometry for their detection and identification

Creator:: Vasil'ev, Yury V., Tzeng, Shin-Chen, Huang, Lin, and Maier, Claudia S.
Abstract:: The post-translational modification of proteins by electrophilic oxylipids is emerging as an important mechanism that contributes to the complexity of proteomes. Enzymatic and non-enzymatic oxidation of biological lipids results in the formation of chemically diverse electrophilic carbonyl compounds, such as 2-alkenals and 4-hydroxy alkenals, epoxides and eicosanoids with reactive cyclopentenone...
Resource Type:: Article

Small Molecule Photoelectron Spectroscopy : Recoil Effects, Stoichiometric Surprises, and Double-Core-Hole Ionization

Creator:: Thomas, T. Darrah
Abstract:: This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Elsevier and can be found at: https://doi.org/10.1016/j.elspec.2012.12.004
Resource Type:: Article

Graphene reduced from magnesiothermic reaction

Creator:: Luo, Wei, Wang, Bao, Wang, Xingfeng, Stickle, William F., and Ji, Xiulei
Abstract:: We, for the first time, employ magnesiothermic reaction to convert microwave-irradiated graphite oxide to pure graphene. The magnesiothermic reaction raises the carbon to oxygen atomic ratio from 22.2 to 165.7 and maintains a high surface area. The new strategy demonstrates an efficient method for obtaining highly pure graphene materials.
Resource Type:: Article

C–H···O Non-Classical Hydrogen Bonding in the Stereomechanics of Organic Transformations: Theory and Recognition

Creator:: Johnston, Ryne C. and Cheong, Paul Ha-Yeon
Abstract:: This manuscript describes the role of non-classical hydrogen bonds (NCHBs), specifically C–H···O interactions, in modern synthetic organic transformations. Our goal is to point out the seminal examples where C–H···O interactions have been invoked as a key stereocontrolling element and to provide predictive value in recognizing future and/or potential C–H···O interactions...
Resource Type:: Article

ScholarsArchive@OSU

Total kinetic energy release in the fast neutron induced fission of actinide nuclei

Linden (Tilia cordata) associated bumble bee mortality : metabolomic analysis of nectar and bee muscle

Air quality and elemental enrichment factors of aerosol particulate matter in Riyadh City, Saudi Arabia

Giant modulation of the electronic band gap of carbon nanotubes by dielectric screening

Electronic and relativistic contributions to ion-pairing in polyoxometalate model systems

High-resolution infrared studies of perdeutero-spiropentane, C₅D₈

Aerobic Bioremediation of PAH Contaminated Soil Results in Increased Genotoxicity and Developmental Toxicity

Organic Tracers from Asphalt in Propolis Produced by Urban Honey Bees, Apis mellifera Linn.

Na⁺ intercalation pseudocapacitance in graphene-coupled titanium oxide enabling ultra-fast sodium storage and long-term cycling

Heterogeneous Reactions of PM-Bound PAHs and NPAHs with NO₃/N₂O₅, OH Radicals, and O₃ under Simulated Long-Range Atmospheric Transport Conditions: Reactivity and Mutagenicity

Influence of Asian and Western U.S. Urban Areas and Fires on the Atmospheric Transport of PAHs, PCBs, and FTOHs in the Western U.S.

Catalyst selective and regiodivergent O- to C- or N-carboxyl transfer of pyrazolyl carbonates: synthetic and computational studies

Synthesis of α-Ketoester- and α-Hydroxyester-Substituted Isoindazoles via the Thermodynamic Coarctate Cyclization of Ester-Terminated Azo-Ene-Yne Systems

Influence of Asian and Western United States Agricultural Areas and Fires on the Atmospheric Transport of Pesticides in the Western United States

Quantification of Complex Polycyclic Aromatic Hydrocarbon Mixtures in Standard Reference Materials Using GC×GC/ToF-MS

Trace Analysis of Surfactants in Corexit Oil Dispersant Formulations and Seawater

Protein modifications by electrophilic lipoxidation products: Adduct formation, chemical strategies and tandem mass spectrometry for their detection and identification

Small Molecule Photoelectron Spectroscopy : Recoil Effects, Stoichiometric Surprises, and Double-Core-Hole Ionization

Graphene reduced from magnesiothermic reaction

C–H···O Non-Classical Hydrogen Bonding in the Stereomechanics of Organic Transformations: Theory and Recognition

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