Physical Sciences and Mathematics Commons^™

The Impact Of Hurricane Katrina On The Environmental Security Of The Us Gulf Coast Region And Beyond, John Lanicci, James Ramsay

John M Lanicci

No abstract provided.

Recent Advances In Quantum Chemical Predictions Of The Atmospheric Reactivity Of Criegee Intermediates, Keith Kuwata

Keith Kuwata

No abstract provided.

Detrital Zircon Provenance Analysis Of The Great Valley Group, California: Evolution Of An Arc-Forearc System, Kathleen Surpless, Stephan Graham, Joseph Wooden, Michael Mcwilliams

Kathleen D. Surpless

The improved resolution of sediment provenance from detrital zircon analysis of Great Valley stratigraphy enables recognition of previously undocumented arc magmatism and the evolution of regional drainage systems within the Cretaceous arc-forearc system related to uplift, magmatism, and structure in the arc. Great Valley detrital zircon age data confirm previous studies that indicate that the locus of the sediment source in the southern Sierra Nevada arc migrated east with the active volcanic front and suggest rapid rates of uplift and unroofing of the southern arc. Sacramento Valley detrital zircon age data indicate a more complex history of drainage in the …

Proterozoic Metamorphism Of The Tobacco Root Mountains, Montana, John Cheney, John Brady, Kara Tierney, Kathleen Surpless, Heidi Mohlman, Jessica Frisch, Christine Hatch, Michael Steiner, Sarah Carmichael, Robin Fisher, Carrie Tuit, Kurt Steffen, Pamela Cady, Josh Lowell, Leandra Archuleta, Jillian Hirst, Karl Wegmann, Brian Monteleone

Kathleen D. Surpless

Textures and mineral assemblages of metamorphic rocks of the Tobacco Root Mountains are consistent with metamorphism of all rocks during the Big Sky orogeny (1.77 Ga) at relatively high pressure (P >1.0 GPa) followed by differential reequilibration on a clockwise P-T path at lower pressures (0.6–0.8 GPa). The highest pressures are documented by coarse-grained kyanite and orthopyroxene in aluminous orthoamphibolites, which require P ≥ 1.0 GPa. Other higher-pressure mineral assemblages of note include kyanite + orthoamphibole and kyanite + K-feldspar. Abundant textural evidence for partial melting in pelitic and basaltic rocks includes leucosomes, very large (several cm across) porphyroblasts of …

The Dape-Encoded N-Succinyl-L,L-Diaminopimelic Acid Desuccinylase From Haemophilus Influenzae Contains Two Active-Site Histidine Residues, Danuta M. Gillner, David L. Bienvenue, Boguslaw P. Nocek, Andzrej Joachimiak, Vincentos Zachary, Brian Bennett, Richard C. Holz

Richard C. Holz

The catalytic and structural properties of the H67A and H349A dapE-encoded N-succinyl-l,l-diaminopimelic acid desuccinylase (DapE) from Haemophilus influenzae were investigated. On the basis of sequence alignment with the carboxypeptidase from Pseudomonas sp. strain RS-16, both H67 and H349 were predicted to be Zn(II) ligands. The H67A DapE enzyme exhibited a decreased catalytic efficiency (180-fold) compared with wild-type (WT) DapE towards N-succinyldiaminopimelic acid. No catalytic activity was observed for H349A under the experimental conditions used. The electronic paramagnetic resonance (EPR) and electronic absorption data indicate that the Co(II) ion bound to H349A-DapE is analogous to that of WT DapE after the …

On The Data Of Images, Lori Ziegelmeier

Lori Beth Ziegelmeier

No abstract provided.

Cutoff: A Spatio-Temporal Imputation Method, Lingbing Feng, Gen Nowak, Terry O'Neill, Alan H. Welsh

Terry O'Neill

The Role Of Transformative Learning In Environmental Education, Jospeh Chen, Akilah Martin

Akilah Martin

Knowledge-based environmental education has been consistently found to be limited in its effectiveness due to its small and indirect role in promoting sustainable behavior, while focusing on the impact of social context has been found to be more conceptually relevant. Transformative learning theory is positioned to be foundational to environmental education based on its increasing focus on promoting social activism through personal transformations. We suggest four criteria in the development of an effective transformative environmental education methodology. Methodologies should (1) focus on change and not just knowledge attainment, (2) reveal behaviors in a real-world context, (3) highlight internal and external …

Constraints On The Emplacement Age Of The Heart Mountain Slide, Northwestern Wyoming, D. Malone, John Craddock, M. Anders, A. Wulff

John Craddock

No abstract provided.

The Analysis Of Muonium Hyperfine Interaction Measurements Of Thermal Rate Constants For Addition Reactions, Ronald Duchovic, A Wagner, R Turner, D Garner, D Fleming

Ronald J. Duchovic

A new model is developed for the analysis of muon spin relaxation (mu-SR) measurements of muonium (Mu) reaction rates with other chemical species. The kinetics component of the model is specifically developed for addition reactions but can be extended to direct reactions. The polarization component of the model assumes that the adduct formed possesses a single, effective spin precession frequency. The complete model is solved to obtain an analytic expression for the mu-SR signal as a function of time. Both a time-ordered sequence method and a Boltzmann spin equation method give equivalent solutions. These solutions are analyzed under various kinetic …

Understanding Life: Perspectives From Physical, Organic, And Biological Chemistry, Ronald Duchovic

Ronald J. Duchovic

No abstract provided.

Connecting Scholarship And Social Responsibility, Ronald Duchovic

Ronald J. Duchovic

No abstract provided.

The Potlib Library Of Potential Energy Functions And A New Global Analytic Pes For The H + O2 Reaction, Ronald Duchovic

Ronald J. Duchovic

No abstract provided.

Mustard Gas: Its Pre-World War I History, Ronald Duchovic, Joel Vilensky

Ronald J. Duchovic

No abstract provided.

Erratum: Theoretical Characterization Of The Potential Energy Surface For H + O2 Ho2* Oh + O. Iii. Computed Points To Define A Global Potential Energy Surface, S Walch, Ronald Duchovic

Ronald J. Duchovic

No abstract provided.

A Quasiclassical Trajectory Study Of The Reaction H + O2 Oh + O With The O2 Reagent Vibrationally Excited, Ronald Duchovic, Marla Parker

Ronald J. Duchovic

No abstract provided.

[Erratum] A Correction To The Potlib Library Described In "Potlib 2001: A Potential Energy Surface Library For Chemical Systems": [Computer Physics Communications 144 (2002) 169-187], Ronald Duchovic

Ronald J. Duchovic

No abstract provided.

Venus96: A General Chemical Dynamics Computer Program, W Hase, Ronald Duchovic, X Hu, A Komornicki, K Lim, D-H Lu, G Peslherbe, K Swamy, S Vande Linde, A.J Varandas, H Wang, R Wolf

Ronald J. Duchovic

No abstract provided.

The Fft Method For Determining Semiclassical Eigenvalues: Application To Asymmetric Top Rigid Rotors, Ronald Duchovic, G Schatz

Ronald J. Duchovic

A Fourier transform method for calculating action variables and semiclassical eigenvalues in molecules starting from Cartesian coordinates and momenta is developed and applied to the determination of rotational semiclassical eigenvalues for rigid asymmetric top molecules. The method involves calculating rotational actions by using Fourier representations of the symmetric top action‐angle variables to express the integrals. The question of what is the optimum quantization axis is considered, and it is found that the same primitive semiclassical eigenvalues are obtained independent of which principal axis is used for quantization provided that the replacement J → J+ 1/2 is made. The replacement J …

The Potlib As A Means Of Disseminating Pess, Ronald Duchovic

Ronald J. Duchovic

No abstract provided.

A Global Analytic Pes For H + O2 Oh + O And The Potlib 2001 Library, Ronald Duchovic

Ronald J. Duchovic

No abstract provided.

Conventional Transition State Theory/Rice-Ramsperger-Kassel-Marcus Theory Calculations Of Thermal Termolecular Rate Coefficients For H(D) + O2 + M, Ronald Duchovic, J Pettigrew, B Welling, T Shipchandler

Ronald J. Duchovic

Several ab initio studies have focused on the minimum energy path region of the hydroperoxyl potential energy surface (PES) [J. Chem. Phys. 88, 6273 (1988)] and the saddle point region for H‐atom exchange via a T‐shaped HO2 complex [J. Chem. Phys. 91, 2373 (1989)]. Further, the results of additional calculations [J. Chem. Phys. 94, 7068 (1991)] have been reported, which, when combined with the earlier studies, provide a global description (but not an analytic representation) of the PES for this reaction. In this work, information at the stationary points of theab initio PES is used within the framework of conventional …

Teaching Science To The Non-Science Major: An Interdisciplinary Approach, Ronald Duchovic, David Maloney, A Majumdar, R Manalis

Ronald J. Duchovic

No abstract provided.

Lessons Learned From An Interdisciplinary Course In Undergraduate Science, Ronald Duchovic

Ronald J. Duchovic

This chapter discusses the team teaching of an interdisciplinary science course intended for non-science majors at IPFW. The course was taught by an interdisciplinary team of scientists and mathematicians (biology, chemistry, geosciences, mathematics, and physics) at IPFW in the early 1990s.

Theoretical Characterization Of The Minimum Energy Path For Hydrogen Atom Addition To N2: Implications For The Unimolecular Lifetime Of Hn2, S Walch, Ronald Duchovic, C Rohlfing

Ronald J. Duchovic

The minimum energy path (MEP) for the addition of a hydrogen atom to N2 is characterized in CASSCF/externally contracted CI calculations using a [4s3p2d1f/3s2p1d] ANO basis set, with additional single point calculations at the stationary points of the potential energy surface using a [5s4p3d2f/4s3p2s] ANO basis set. These calculations represent the most extensive set of ab initio calculations on HN2 completed to date, yielding a zero-point corrected barrier for HN2 dissociation of ?8.5 kcal mol-1. The lifetime of the HN2 species is estimated from the calculated geometries and energetics using both conventional transition state theory and a method which utilizes …

Improving Conservation Community Group Effectiveness Using Mind Mapping And Action Research, Hanabeth Luke, David Lloyd, William Boyd, Kristin Den Exter

Dr Kristin den Exter

No abstract provided.

Age And Provenance Of Eocene Volcanic Rocks At Hominy Peak, Northern Teton Range, Wyoming: Implications For The Emplacement Of The Heart Mountain Slide, D. Malone, John Craddock, L/ Tranel, M. Mustain

John Craddock

No abstract provided.

Age And Provenance Of The Eocene Crandall Conglomerate: Implications For The Emplacement Of The Heart Mountain Slide, D. Malone, J. Breeden, John Craddock, M. Anders, A. Macnamee

John Craddock

No abstract provided.

The Effects Of A Weak Alternating Magnetic Field On Glutamic Acid, Carston Work, Ben Pound

Ben Pound

There has been substantial research showing the effects of Extremely Low Frequency Electromagnetic Fields (ELF-EMF) on various properties of liquids, among the most notable being the acidity of a solution. ELF-EMFs have amplitudes typically measured on the scale of microteslas, and have frequencies comparable to the cyclotron frequency of the molecule its ionic form. It is hypothesized that the magnetic field changes the coordination of water, which in turn affects the pH of the solution. This is difficult to measure directly, but it can be measured by adding a molecule that can be detected by IR spectroscopy that is sensitive …

Structural Analysis Of Alpha-Fetoprotein (Afp)-Like Peptides With Anti-Breast-Cancer Properties, Berhane Temelso, Katherine Alser, Arianne Gauthier, Amber Palmer, George Shields

Berhane Temelso

The abundance of alpha-fetoprotein (AFP), a natural protein produced by the fetal yolk sac during pregnancy, correlates with lower incidence of estrogen receptor positive (ER+) breast cancer. The pharmacophore region of AFP has been narrowed down to a four amino acid (AA) region in the third domain of the 591 AA peptide. Our computational study focuses on a 4-mer segment consisting of the amino acids threonine-proline-valine-asparagine (TPVN). We have run replica exchange molecular dynamics (REMD) simulations and used 120 configurational snapshots from the total trajectory as starting configurations for quantum chemical calculations. We optimized structures using semiempirical (PM3, PM6, PM6-D2, …