Physical Sciences and Mathematics Commons^™

Extreme Ground Motion Studies, James N. Brune, John G. Anderson

Publications (YM)

Subtasks:

1. Constraints on Yucca Mountain extreme ground motion based on precariously balanced rocks, unstable precipitous cliffs, and un-fractured sandstone along the San Andreas fault.

2. Prepare summary report on large recorded ground motions.

Geodetic Monitoring Of The Yucca Mountain Region Using Continuous Gps Measurements, Geoff Blewitt, Jonathan Price, Nevada Geodetic Laboratory, Nevada Bureau Of Mines & Geology

Publications (YM)

What Task 3 is About: Monitor current crustal deformation at YM
– In the broader tectonic context of the NA-Pacific plate boundary
– In the regional context of the East California Shear Zone (ECSZ)
– In the geological context of specific fault activity
– Vertical motion associated with geophysical fluids

Using geodetic methods
– GPS – mature, proven
track the 3-D point-positions of 47 stations with < 1 mm precision
– InSAR – new, experimental
regional map of displacement along the line-of-sight (accuracy??)
proven capability: (1) co-seismic deformation; (2) local instabilities

Longbase Laser Strainmeter Measurements At Yucca Mountain, James N. Brune

Publications (YM)

Why Operate a Strainmeter? To monitor strain over a broader bandwidth and with much higher sensitivity than GPS (or other instruments):
– Measure strain from seismic, earth-tide, temperature and air pressure inputs--gives local rock properties, and changes in them.
– Independently constrains GPS results.

To directly measure in the Yucca Mountain Block:
– Sensitive to potential very local tectonic events, (including any triggered slip), or volcanic events.

To establish a baseline for future strain changes:
– E.g., events developing from loading and heating of the repository

Southern Great Basin Seismic Network Operations, John G. Anderson, Glenn Biasi, Ken Smith, Nevada Seismological Laboratory, University Of Nevada, Reno

Publications (YM)

Subtasks 1. Record and archive data from the permanent seismic network.
2. Process seismic data into a preliminary earthquake bulletin.
3. Maintain the seismic stations, the strong-motion stations, the telemetry network, and the computing lab.
4. Prepare and submit a seismicity report on a yearly basis
5. Maintain and collect data from 3 north-portal boreholes.
6. Report on borehole accelerometers.
7. Estimate Kappa at network stations.
8. Implement a recording system at borehole UZ16.
9. Prepare and submit high-quality papers to peer-reviewed journals on seismic data and interpretations in the YM region.
10. Perform a multi-year telemetry and station upgrade.

Exploring Renner-Teller Induced Quenching In The Reaction H(2S)+Nh(A1Δ): A Combined Experimental And Theoretical Study, L. Adam, W. Hack, George C. Mcbane, H. Zhu, Z.-W. Qu, Reinhard Schinke

Peer Reviewed Articles

Experimental rate coefficients for the removal of NH(a¹Δ) and ND(a¹Δ) in collisions with H and D atoms are presented; all four isotope combinations are considered: NH+H, NH+D, ND+H, and ND+D. The experiments were performed in a quasistatic laser-flash photolysis/laser-induced fluorescence system at low pressures. NH(a¹Δ) and ND(a¹Δ) were generated by photolysis of HN₃ and DN₃, respectively. The total removal rate coefficients at room temperature are in the range of (3-5) x 10¹³ cm³ mol^-1 s^-1. For two isotope combinations, NH+H …

Using A Commercially Available Enzyme Immunoassay To Quantify Testosterone In Avian Plasma, Brian E. Washburn, Joshua J. Millspaugh, Dana L. Morris, John H. Schulz, John Faaborg

United States Department of Agriculture Wildlife Services: Staff Publications

Using a commercially available testosterone enzyme immunoassay (EIA), we developed and validated an assay procedure for determining testosterone levels in small-volume (20 mL) avian plasma samples. We evaluated this EIA’s utility by measuring plasma testosterone levels in Mourning Doves (Zenaida macroura), White-eyed Vireos (Vireo griseus), Red-eyed Vireos (Vireo olivaceus), and Indigo Buntings (Passerina cyanea). Standard biochemical validations (e.g., parallelism, recovery of exogenous testosterone) demonstrated that the assay accurately and precisely measured testosterone in avian plasma. We compared plasma testosterone levels in males and females of all four species and Indigo Buntings in …

Examination Of The New Α-(2′Z-Fluoro)Vinyl Trigger With Lysine Decarboxylase: The Absolute Stereochemistry Dictates The Reaction Course, Kannan R. Karukurichi, Roberto De La Salud-Bea, Wan Jin Jahng, David B. Berkowitz

David Berkowitz Publications

The first examination of a terminal α-fluorovinyl trigger in an amino acid decarboxylase active site is reported. To investigate the enantiospecifity of inactivation with this new AADC trigger, an enantioselective synthesis of L-α-(2′Z-fluoro)vinyllysine and its D-antipode has been developed. Control of stereochemistry is achieved through introduction of the amino acid side chain via alkylation of a chiral vinylglycine-derived dienolate. Facial selectivity is conferred by a trans-2′(β- naphthyl)-2′-propylcyclohexyl ester auxiliary, available in both antipodal forms (Comins protocol). The alkylation employs a new electrophile, N-p-methoxybenzyl-N-(2′- trimethylsilylethanesulfonyl)-4-iodobutylamine, for convergent installation of the lysine side chain. Vinyl to 2′-fluorovinyl interconversion then provides L- …

Using A Commercially Available Enzyme Immunoassay To Quantify Testosterone In Avian Plasma, Brian E. Washburn, Joshua J. Millspaugh, Dana L. Morris, John H. Schulz, John Faaborg

United States Department of Agriculture Wildlife Services: Staff Publications

Using a commercially available testosterone enzyme immunoassay (EIA), we developed and validated an assay procedure for determining testosterone levels in small-volume (20 μL) avian plasma samples. We evaluated this EIA’s utility by measuring plasma testosterone levels in Mourning Doves (Zenaida macroura), White-eyed Vireos (Vireo griseus), Red-eyed Vireos (Vireo olivaceus), and Indigo Buntings (Passerina cyanea). Standard biochemical validations (e.g., parallelism, recovery of exogenous testosterone) demonstrated that the assay accurately and precisely measured testosterone in avian plasma. We compared plasma testosterone levels in males and females of all four species and Indigo Buntings in …

Isospin Purity Of T=1 States In The A=38 Nuclei Studied Via Lifetime Measurements In K38, F. M. Prados Estevez, A. M. Bruce, M. J. Taylor, H. Amro, C. W. Beausang, R. F. Casten, J. J. Ressler, C. J. Barton, C. Chandler, G. Hammond

Physics Faculty Publications

The Doppler Shift Attenuation Method was used to measure lifetimes for levels in 38K at excitation energies of 1698, 2404, 2830, 2996, and 3671 keV, populated using the 40Ca(d, α) 38K reaction at a beam energy of 4.5 MeV. Values of 109(29), 95(22), 457(63), 130(40), and 160(50) fs, respectively, were measured and are compared with previous values obtained using different stopping powers. The matrix element for the transition between the Jπ = 2+ T=1 and 0+ T=1 states in this Tz = 0 nucleus is compared with the analogous transition in the other nuclei in the T = 1 triplet, …

Neutron Scattering Reveals Extremely Slow Cell Water In A Dead Sea Organism, M. Tehei, B. Franzetti, K. Wood, F. Gabel, E. Fabiani, M. Jasnin, M. Zamponi, D. Oesterhelt, G. Zaccai, M. Ginzburg, B. Ginzburg

Faculty of Science - Papers (Archive)

Intracellular water dynamics in Haloarcula marismortui, an extremely halophilic organism originally isolated from the Dead Sea, was studied by neutron scattering. The water in centrifuged cell pellets was examined by means of two spectrometers, IN6 and IN16, sensitive to motions with time scales of 10 ps and 1 ns, respectively. From IN6 data, a translational diffusion constant of 1.3 10-5 cm2s-1 determined at 285 K. This value is close to that found previously for other cells and close to that for bulk water, as well as that of the water in the 3.5 M NaCl solution bathing the cells. A …

Factors Contributing To Dust Emissions In Clark County, Nevada Quarterly Progress Report: Period Ending January 15, 2007, Margaret N. Rees

Dust Emissions from Public Lands

• Post-doctoral scholar to commence work in next quarter
• Preliminary discussions with BLM personnel initiated

A Dyad Theory Of Hydrodynamics And Electrodynamics, Preston Jones

Publications

The dyadic calculus is developed in a form suitable for the description of physical relations in curved space. The 4-space equations of hydrodynamics and electrodynamics are constructed using this dyadic calculus. As a demonstration of the relationship between gravity and electrodynamics a time varying metric is shown to generate electromagnetic radiation.

Integral And Nonnegativity Preserving Approximations Of Functions, Jiu Ding, Larry Eifler, N. H. Rhee

Faculty Publications

In this paper we consider the problem of approximating a function by continuous piecewise linear functions that preserve the integral and nonnegativity of the original function. (c) 2006 Elsevier Inc. All rights reserved.

Radiation-Induced Current In Quantum Wires With Side-Coupled Nanorings, Yuriy V. Pershin Dr, Carlo Piermarocchi

Faculty Publications

Photocurrent generation is studied in a system composed of a quantum wire with side-coupled quantum rings. The current generation results from the interplay of the particular geometry of the system and the use of circularly polarized radiation. We study the energy-momentum conservation for optical transitions involving electrons moving forward and backwards in the wire. Due to the lack of time-reversal symmetry in the radiation, the optical transitions depend on the direction of motion of the electrons, leading to a current at zero bias voltage. The photocurrent increases with the number of rings within a wide range of physical parameters. A …

Collaborative Research: Mechanisms Of Abiotic Immobilization Of Nitrate In Temperate Forest Soils, David B. Dail

University of Maine Office of Research Administration: Grant Reports

Atmospheric deposition of nitrogen to temperate forests has increased in recent decades as a result of increased combustion of fossil fuels. Knowing how nitrogen in air pollution is retained within forests will improve the ability of scientists to anticipate interactions among efforts to mitigate human alterations of regional and global cycles of carbon and nitrogen. For example, the way that forests retain nitrogen affects the ability of forests to help mitigate expected global warming due to increased carbon gases in the atmosphere. Because nitrogen often limits rates of plant growth, increased nitrogen inputs could affect forest growth and health. Most …

Rank-Ordering Protein-Ligand Binding Affinity By A Quantum Mechanics/ Molecular Mechanics/Poisson-Boltzmann-Surface Area Model, Mingliang Wang, Chung Wong

Chemistry & Biochemistry Faculty Works

The authors describe a quantum mechanics/molecular mechanics/Poisson-Boltzmann-surface area model for rank-ordering protein-ligand binding affinity in aqueous solution. Unlike many classical continuum electrostatics calculations in which the protein and ligand are treated as a uniform dielectric, this model uses quantum mechanics to explicitly describe the electronic polarization of the ligand by its environment. In solving the Poisson-Boltzmann equation, the authors use the quantum mechanical charge density directly rather than the common point-charge approximation. The authors show that useful results can be obtained by using experimental structure, by choosing a protein dielectric constant that is smaller than that typically used in classical …

Allagash Wilderness Waterway Working Group On Structure, Management And Oversight: Choosing Common Ground And Moving Ahead (Executive Summary), Allagash Wilderness Waterway Working Group

Maine History & Policy Development

In his June 19, 2006, Executive Order, Governor John E. Baldacci directed the Working Group to “offer its best guidance and advice to the Governor respecting the long-term governance, management, and oversight structure for the Allagash Wilderness Waterway” (AWW). In the intervening six months the members of the Working Group have engaged in an examination of the forty-year history of the Waterway and an analysis of the conditions and circumstance that led to the Governor’s Executive Order. We have reviewed documentation of the AWW history, taken testimony at numerous public meetings and hearings, conducted correspondence with members of the several …

Triply-Periodic Smectic Liquid Crystals, Christian Santangelo, Randall D. Kamien

Christian Santangelo

Twist-grain-boundary phases in smectics are the geometrical analogs of the Abrikosov flux lattice in superconductors. At large twist angles, the nonlinear elasticity is important in evaluating their energetics. We analytically construct the height function of a π∕2 twist-grain-boundary phase in smectic-A liquid crystals, known as Schnerk’s first surface. This construction, utilizing elliptic functions, allows us to compute the energy of the structure analytically. By identifying a set of heretofore unknown defects along the pitch axis of the structure, we study the necessary topological structure of grain boundaries at other angles, concluding that there exist a set of privileged angles and …

System For Collision Detection Between Deformable Models Built On Axis Aligned Bounding Boxes And Gpu Based Culling, David Owen Tuft

Theses and Dissertations

Collision detection between deforming models is a difficult problem for collision detection systems to handle. This problem is even more difficult when deformations are unconstrained, objects are in close proximity to one another, and when the entity count is high. We propose a method to perform collision detection between multiple deforming objects with unconstrained deformations that will give good results in close proximities. Currently no systems exist that achieve good performance on both unconstrained triangle level deformations and deformations that preserve edge connectivity. We propose a new system built as a combination of Graphics Processing Unit (GPU) based culling and …

Platform Independent Real-Time X3d Shaders And Their Applications In Bioinformatics Visualization, Feng Liu

Computer Science Dissertations

Since the introduction of programmable Graphics Processing Units (GPUs) and procedural shaders, hardware vendors have each developed their own individual real-time shading language standard. None of these shading languages is fully platform independent. Although this real-time programmable shader technology could be developed into 3D application on a single system, this platform dependent limitation keeps the shader technology away from 3D Internet applications. The primary purpose of this dissertation is to design a framework for translating different shader formats to platform independent shaders and embed them into the eXtensible 3D (X3D) scene for 3D web applications. This framework includes a back-end …

Catena-Poly[[Bis(Α-Thenoyltrifluoroacetonato-Κ2O,O')Copper(Ii)]-Μ-1,4-Di-3-Pyridyl-2,3-Diaza-1,3-Butadiene-Κ2N:N'], William J. Perkins, Tamar Maxwell, Ken B. Williams, Andrea M. Goforth, Mark D. Smith, Leroy Peterson Jr., Hans-Conrad Zur Loye

Faculty Publications

The title compound, [Cu(C₈H₄F₃O₂S)₂(C₁₂H₁₀N₄)]_n or [Cu(tta)₂(L2)₂]_n (L2 = 1,4-di-3-pyridyl-2,3-diaza-1,3-butadiene and tta = -thenoyltrifluoroacetonate), consists of undulating chains containing two crystallographically distinct Cu^II centers that are each located on inversion centers. Each Cu^II center exhibits distorted octahedral coordination provided by two pyridyl N atoms from two equivalent L2 ligands and four O atoms from two equivalent tta ligands. The chains interact through weak C-FH-C contacts.

Catena-Poly[[Diaquadinitratozinc(Ii)]Bis(Μ-1,4-Di-3-Pyridyl-2,3-Diaza-1,3-Butadiene)], Shakoya Paulin, Pierre Kelly, Kenneth B. Williams, Andrea M. Goforth, Mark D. Smith, Leroy Peterson Jr., Hans-Conrad Zur Loye

Faculty Publications

The polymeric title complex, [Zn(NO₃)₂(C₂₄H₂₀N₈)(H₂O)₂]_n, features distorted ZnN₂O₄ octahedra with each Zn^II atom being located on an inversion center. Adjacent Zn ions are doubly bridged by two equivalent 1,4-di-3-pyridyl-2,3-diaza-1,3-butadiene ligands to form linear chains.

Analysis Of Multi-Level Correlated Data In The Framework Of Generalized Estimating Equations Via Xtmultcorr Procedures In Stata And Qls Functions In Matlab, Justine Shults, Sarah J. Ratcliffe

UPenn Biostatistics Working Papers

No abstract provided.

Influence Of Lithophysae Geometry On Mechanical Properties Of Hydro-Stone®, Moses Karakouzian, Doug Rigby

Publications (YM)

85 percent of YM drift tunnels will be constructed in lithophysal volcanic tuff.

Rock behavior depends on porosity.

Limited experimental data exists to characterize rock porosity and dependencies on properties such as σc , E, and n.

Return To The Wild: Translocation As A Tool In Conservation Of The Desert Tortoise (Gopherus Agassizii), Kimberleigh J. Field, C. Richard Tracy, Philip A. Medica, Ronald W. Marlow, Paul Stephen Corn

United States Geological Survey: Staff Publications

Translocation could be used as a tool in conservation of the threatened Mojave Desert Tortoise (Gopherus agassizii) by moving individuals from harm’s way and into areas where they could contribute to conservation of the species. Numerous factors may affect the success of translocations, including the conditions experienced by tortoises in holding facilities while awaiting translocation. The tortoises available for our translocation study had been provided supplemental water during their years spent in a captive holding facility, potentially inducing carelessness in water conservation. In addition to generally investigating the efficacy of translocation, we compared the effects of continuing with …

Chemical And Dynamical Processes In The Mesospheric Emissive Layer. First Results Of Stereoscopic Observations, M. Faivre, G. Moreels, Pierre-Dominique Pautet, J. Clairemidi, F. Dumont, O. Lorin, F. Colas

Publications

[1] The mesospheric emissive layer is an efficient tracer of the dynamical processes propagating in the atmosphere at that level. CCD images in the near infrared taken from the ground at slant angles often reveal the existence of wavy fields. A series of such images has been transformed, using matrix operations, producing a downward satellite-type view that covers a circular area of radius ∼1000 km at the altitude of the layer. The Fourier characteristics of the wave system are measured using a Morlet-type wavelet generator function with horizontal wavelengths of mostly ∼20–40 km and 100–150 km and temporal periods of …

Thermochemistry Of 2- And 3-Acetylthiophenes: Calorimetric And Computational Study., María Victoria Roux, Manuel Temprado, And Pilar Jiménez, Rafael Notario, James S. Chickos, Ana Filipa L. O. M. Santos And, Manuel A. V. Ribeiro Da Silva

James Chickos

No abstract provided.

Calorimetric And Computational Study Of Indanones, M. Agostinha R. Matos, Margarida S. Miranda, Manuel J. S. Monte, Luis M. N. B. F. Santos, Victor M. F. Morais, James S. Chickos, Patamaporn Umnahanant, Joel F. Liebman

James Chickos

No abstract provided.

Virgo’S Intracluster Globular Clusters As Seen By The Advanced Camera For Surveys, Benjamin F. Williams, Robin Ciardullo, Ted Von Hippel, Et Al.

Publications

We report the discovery of four candidate intracluster globular clusters (IGCs) in a single deepHST ACS field of the Virgo Cluster. We show that each cluster is roughly spherical, has a magnitude near the peak of the Virgo globular cluster luminosity function, has a radial profile that is best fitted by a King model, and is surrounded by an excess of point sources that have the colors and magnitudes of cluster red giant stars. Despite the fact that two of our IGC candidates have integrated colors redder than the mean of the M87 globular cluster system, we propose that …

Eliminating Redundant And Less-Informative Rss News Articles Based On Word Similarity And A Fuzzy Equivalence Relation, Ian Garcia

Theses and Dissertations

The Internet has marked this era as the information age. There is no precedent in the amazing amount of information, especially network news, that can be accessed by Internet users these days. As a result, the problem of seeking information in online news articles is not the lack of them but being overwhelmed by them. This brings huge challenges regarding processing of online news feeds, i.e., how to determine which news article is important, how to determine the quality of each news article, and how to filter irrelevant and redundant information. In this thesis, we propose a method for filtering …