Physical Sciences and Mathematics Commons^™

Cooperative Conservation: Increasing Capacity Through Community Partnerships -- Interagency Volunteer Program & Cooperative Conservation Program: Quarterly Progress Report, Period Ending March 31, 2006, Margaret N. Rees

Get Outdoors Nevada

• Interagency volunteer database now contains 2,211 records, reflecting 404 new volunteer records this quarter, a 22% increase over last quarter.
• Website activity decreased, recording an average of 35,798 hits per month, with an average of 3,337 pages viewed per month.
• Volunteer events were successfully executed in Sloan Canyon NCA, Spring Mountains NRA, and Lake Mead NRA.
• Interagency training was delivered to 70 volunteers.

Afci Quarterly Input – Unlv January 1 Through March 31, 2006, Harry Reid Center For Environmental Studies. Nuclear Science And Technology Division

Transmutation Research Program Reports (TRP)

Quarterly report highlighting research projects, activities and objectives of the Transmutation Research Program at the Nuclear Science & Technology Division, Harry Reid Research Center.

The University of Nevada, Las Vegas supports the AFCI through research and development of technologies for economic and environmentally sound refinement of spent nuclear fuel. The UNLV program has four components: infrastructure, international collaboration, student-based research, and management and program support.

Development Of Integrated Process Simulation System Model For Spent Fuel Treatment Facility (Sftf) Design: Quarterly Progress Report January 1-March 31, 2006, Yitung Chen, Sean Hsieh

Separations Campaign (TRP)

The UNLV developed TRPSEMPro software package can access engineering modeling software, ASPEN Plus through its own interface. The new interface eliminates the user interaction with the complex ASPEN Plus package and also provides input and output results for analysis purpose. The current interface will keep improving on collecting multiple scenario runs and database population.

Two separation processes, acid and plutonium separations, are near completion. The unit operations were finished while some sensitive chemical data for certain species are unknown. Graduate student, Matthew Hodges, continues on finishing those processes using dummy values for those restricted variables. Once the processes complete, researchers …

Front Matter

Journal of Digital Forensics, Security and Law

No abstract provided.

Masthead

Journal of Digital Forensics, Security and Law

No abstract provided.

Back Matter

Journal of Digital Forensics, Security and Law

No abstract provided.

Evaluation Of Geophysical And Thermal Methods For Detecting Submarine Groundwater Discharge (Sgd) In The Suwannee River Estuary, Florida, Matthew Weiss

USF Tampa Graduate Theses and Dissertations

Submarine groundwater discharge (SGD) represents a significant portion of the total discharge from coastal aquifers through diffuse seepage and point source springs, but can be difficult to locate. SGD is important as it can be a source of nutrients to estuaries and other coastal ecosystems. In an effort to evaluate geophysical and thermal methods for detecting SGD on the Florida Gulf coast, a suite of water-borne surveys were run in conjunction with aerial thermal imagery over the lower Suwannee River and estuary in March and September 2005. Thermal imagery exploits temperature differences between discharging groundwater and surface water. Thermal images …

Measurement Of The Inclusive Jet Cross Section Using The KT Algorithm In Pp̅ Collisions At √S = 1.96 Tev, A. Abulencia, Kenneth A. Bloom, Cdf Collaboration

Kenneth Bloom Publications

We report on a measurement of the inclusive jet production cross section as a function of the jet transverse momentum in pp̅ collisions at √s = 1.96 TeV using data collected with the upgraded Collider Detector at Fermilab in run II, corresponding to an integrated luminosity of 385 pb^-1. The measurement is carried out for jets with rapidity 0.1 <∣y^jet∣ < 0.7 and transverse momentum in the range 54<p_T^jet < 700 GeV/c. Next-to-leading order perturbative QCD predictions are in good agreement with the measured cross section after the necessary nonperturbative parton-to-hadron corrections are included.

Hydrodynamics Of Polar Liquid Crystals, William Kung, Cristina M. Marchetti, Karl Saunders

Physics

Starting from a microscopic definition of an alignment vector proportional to the polarization, we discuss the hydrodynamics of polar liquid crystals with local C_∞v symmetry. The free energy for polar liquid crystals differs from that of nematic liquid crystals (D_∞h) in that it contains terms violating the n→−n symmetry. First we show that these Z₂-odd terms induce a general splay instability of a uniform polarized state in a range of parameters. Next we use the general Poisson-bracket formalism to derive the hydrodynamic equations of the system in the polarized state. The structure of …

Technical Documentation For The Approximate Point Locations And Year Of Collection For Over 50,000 Specimens In The University Of Michigan Herbarium's Michigan Flora Database, Rachel A. Simpson

School of Natural Resources: Faculty Publications

This is the technical documentation for a set of mapped points representing the approximate locations at which over 50,000 plant specimens were collected in Michigan. The specimens are a subset of those documented in the University of Michigan Herbarium's Michigan Flora Database, compiled by E.G. Voss.

Causal Effect Models For Intention To Treat And Realistic Individualized Treatment Rules, Mark J. Van Der Laan

U.C. Berkeley Division of Biostatistics Working Paper Series

An important class of models in causal inference are the so-called marginal structural models which model the comparison between counterfactual outcome distributions corresponding with a static treatment intervention, conditional on user supplied baseline covariates, based on observing a longitudinal data structure on a sample of n independent and identically distributed experimental units. Identification of a static treatment regimen specific outcome distribution based on observational data requires beyond the so-called sequential randomization assumption that each experimental unit has positive probability of following the static treatment regimen. The latter assumption is called the experimental treatment assignment assumption (ETA) (which is parameter specific). …

Lake Whatcom Monitoring Project 2004/2005 Report, Robin A. Matthews, Michael Hilles, Joan Vandersypen, Robert J. Mitchell, Geoffrey B. Matthews

Lake Whatcom Annual Reports

This report is part of an on-going series of annual reports and special project reports that document the Lake Whatcom monitoring program. This work is conducted by the Institute for Watershed Studies and other departments at Western Washington University.

The major objective of this program is to provide long-term baseline water quality monitoring in Lake Whatcom and selected tributaries. Each section contains brief explanations about the water quality data, along with discussions of patterns observed in Lake Whatcom.

A Comparative Genomic Analysis Of Chlorella Nc64a Virus Ny-2a And Chlorella Pbi Virus Mt325 From The Family Phycodnaviridae, Lisa A. Fitzgerald

Department of Chemistry: Dissertations, Theses, and Student Research

The family Phycodnaviridae consists of a morphologically similar but genetically diverse group of large dsDNA viruses which infect both fresh and marine water eukaryotic algae. Two viruses, the 370 kb Chlorella NC64A virus NY-2A and the 313 kb Chlorella Pbi virus MT325, from the family Phycodnaviridae, genus Chlorovirus, were sequenced, analyzed, and compared to the prototype chlorella virus PBCV-1. The NY-2A genome, the largest chlorella viral genome sequenced to date, contains 886 open reading frames (ORFs) of 65 codons or larger and encodes 404 putative proteins and 7 tRNAs. The MT325 genome, the smallest chlorella viral genome sequenced to date, …

Reactions Of 1,1-Disubstituted-Ethylenes And 1,4-Diphenyl-1,3-Butadienes With Singlet Oxygen And 4-Alkyl-1,2,4-Triazoline-3,5-Dione (Rtad), Baishakhi Das

FIU Electronic Theses and Dissertations

A study of the reaction pathways of 1,1-diphenylethylene; methyleneindan; fluorenene; trans,trans-1,4-diphenyl-1,3-butadiene; cis,trans-1,4-diphenyl-1,3- butadiene and cis,cis-1,4-diphenyl-1,3-butadiene with singlet oxygen and the singlet oxygen mimic, 4-alkyl-1,2,4-triazoline-3,5-dione (RTAD) has been undertaken. Comparisons of the reactivity and reaction mechanisms among the isomers and electrophiles have been conducted. Singlet oxygen exhibits significantly lower reactivity compared to RTAD. RTAD reacts with 1,1- diphenylethylene to produce 4+2/ene and 4+2/4+2 (2:1) adducts but with methyleneindan to give a complex mixture including the ene adduct. Reactions of isomeric 1,4-diphenyl-1,3-butadienes with RTAD produce 4+2 adducts. The results of the studies provide …

Dynamic Monitoring Of Cytotoxicity Using Electric Cell Substrate Impendence Sensing, Alfred Brian Wafula

USF Tampa Graduate Theses and Dissertations

Electric cell-substrate impedance sensing (ECIS) pioneered by Giaever and Keese is suitable for continuous, automatic and real-time cell attachment analysis. ECIS is a novel electrical method to study, in real time, many of the activities of animal cells when grown in tissue culture. These include morphological changes, cell locomotion, and other behaviors directed by the cell's cytoskeleton. One of the most direct ECIS measurements is that of the attachment and spreading behaviors of cells. These measurements allow one to study and quantify the interaction of cultured cells with extracellular matrix (ECM) proteins and other macromolecules continuously and in real time. …

Reduction Of Potential Fire Behavior In Wildland-Urban Interface Communities In Southern California: A Collaborative Approach, Christopher Dicus, Michael E. Scott

Natural Resources Management and Environmental Sciences

This manuscript details a collaborative effort that reduced the risk of wildfire in an affluent, wildland-urban interface community in southern California while simultaneously minimizing the environmental impact to the site. FARSITE simulations illustrated the potential threat to the community of Rancho Santa Fe in San Diego County, California, where multimillion-dollar homes were located immediately above a designated open space area that consisted primarily of 60-year-old, decadent chaparral. Post-treatment fire behavior simulations demonstrated the potential ability to moderate fire behavior. Results of the fire behavior modeling led to a recognition for the need for fuels treatments by both homeowners and regulatory …

Semantic Web Applications In Financial Industry, Government, Health Care And Life Sciences, Amit P. Sheth

Kno.e.sis Publications

No abstract provided.

Coastal Processes And Anthropogenic Factors Influencing The Geomorphic Evolution Of Weedon Island, Florida, Jeanne Lambert

USF Tampa Graduate Theses and Dissertations

Weedon Island, a peninsula located on the western inner shoreline of Tampa Bay, Florida, is the location of a collaborative geological and archaeological project that aims to relate the present day geomorphology to natural processes and human occupational activity during the middle to late Holocene. The area is known for extensive archaeological sites, which were originally investigated in the 1920s, although they have received relatively little scientific attention during most of the last century. We hypothesize that activities associated with pre-historic human occupation of Weedon Island at various times during the last ca. 5,000 years influenced the geomorphic evolution of …

Long-Term Volumetric Eruption Rates And Magma Budgets, Scott M. White, Joy A. Crisp, Frank J. Spera

Faculty Publications

A global compilation of 170 time-averaged volumetric volcanic output rates (Qe) is evaluated in terms of composition and petrotectonic setting to advance the understanding of long-term rates of magma generation and eruption on Earth. Repose periods between successive eruptions at a given site and intrusive:extrusive ratios were compiled for selected volcanic centers where long-term (>104 years) data were available. More silicic compositions, rhyolites and andesites, have a more limited range of eruption rates than basalts. Even when high Qe values contributed by flood basalts (9 ± 2 10[1]1 km3/yr) are removed, there is a trend in decreasing average Qe …

Many-Body Interactions In A Sample Of Ultracold Rydberg Atoms With Varying Dimensions And Densities, Thomas J. Carroll, Shubha Sunder, Michael W. Noel

Physics and Astronomy Faculty Publications

Ultracold highly excited atoms in a magneto-optical trap (MOT) are strongly coupled by the dipole-dipole interaction. We have investigated the importance of many-body effects by controlling the dimensionality and density of the excited sample. We excited three different cylindrical volumes of atoms in the MOT to Rydberg states. At small radius, where the sample is nearly one-dimensional, many-body interactions are suppressed. At larger radii, the sample becomes three-dimensional and many-body effects are apparent.

Vibrational Feshbach Resonances In Uracil And Thymine, Paul Burrow, Gordon A. Gallup, Adam M. Scheer, G. Denifl, S. Ptasinska, T. Märk, P. Scheier

Paul Burrow Publications

Sharp peaks in the dissociative electron attachment (DEA) cross sections of uracil and thymine at energies below 3 eV are assigned to vibrational Feshbach resonances (VFRs) arising from coupling between the dipole bound state and the temporary anion state associated with occupation of the lowest σ* orbital. Three distinct vibrational modes are identified, and their presence as VFRs is consistent with the amplitudes and bonding characteristics of the σ * orbital wave function. A deconvolution method is also employed to yield higher effective energy resolution in the DEA spectra. The site dependence of DEA cross sections is evaluated using methyl …

Cultural Models - A Tool For Enhancing Communication And Collaboration In Coastal Resources Management: A Primer For Coastal Training Program Coordinators In National Estuarine Research Reserves, Christine Baumann Feurt

Environmental Studies Faculty Publications

No abstract provided.

Modeling The Pinning Of Au And Ni Clusters On Graphite, R. Smith, C. Nock, S. D. Kenny, Joseph J. Belbruno

Dartmouth Scholarship

The pinning of size-selected AuN and NiN clusters on graphite, for N=7–100, is investigated by means of molecular dynamics simulations and the results are compared to experiment and previous work with Ag clusters. Ab initio calculations of the binding of the metal adatom and dimers on a graphite surface are used to parametrize the potentials used in the simulations. The clusters are projected normally towards a graphite surface and the value of the energy at which pinning first occurs, EP, is determined. Pinning is shown to occur when a surface defect, made by the cluster interaction, is first produced. The …

Post Register Allocation Spill Code Optimization, Christopher Lupo, Kent Wilken

Computer Science and Software Engineering

A highly optimized register allocator should provide an efficient placement of save/restore code for procedures that contain calls. This paper presents a new approach to placing callee-saved save and restore instructions that generalizes Chow's shrink-wrapping technique (Chow 1988). An efficient, profile-guided, hierarchical spill code placement algorithm is used to analyze the structure of a procedure to calculate the minimum dynamic execution count locations to place callee-saved save and restore code. The algorithm is implemented in the Gnu Compiler Collection and has been tested on the SPEC CPU2000 Integer Benchmark suite. Results show that the technique reduces the number of dynamic …

Gas Chromatography: Mass Spectrometry Of Chemical Agents And Related Interferents, Lailiang Zhai

Theses and Dissertations

One of the main problems encountered in chemical analysis operations in the field is collecting sufficient sample from the source and transferring that sample to the measurement instrument for fast separation and identification. I have been involved in developing a field-portable gas chromatography-mass spectrometry (GC-MS) system with solid phase microextraction (SPME) sampling for point detection of chemical agents. The objective is to minimize the analysis time between sampling and detection of a potential chemical threat. SPME offers a convenient means for sampling gaseous and liquid samples, concentrating the analytes, and transferring the analytes to the injection port of a GC …

Contrasting Silicic Magma Series In Miocene-Pliocene Ash Deposits In The San Miguel De Allende Graben, Guanajuato, Mexico, Eric H. Christiansen, Bart J. Kowallis, Aaron J. Adams, Oscar Carranza-Castaneda, Wade E. Miller

Faculty Publications

The San Miguel de Allende graben, Guanajuato, Mexico, contains numerous rhyolitic volcanic ash beds. Electron microprobe and x-ray fluorescence analyses of glass shards from 14 localities, combined with mineralogic, stratigraphic, radiometric, and paleomagnetic data, allow us to correlate the ash beds (and the intervening sedimentary strata and fossils), understand the timing of volcanism, date the age of extension, and better understand the tectonic and volcanic evolution of central Mexico. Our analyses reveal that at least six separate eruptions of rhyolitic ash occurred during the Late Miocene and Pliocene (5-3 Ma) while the San Miguel Allende basin was subsiding. The fallout …

Effect Of Hydrologic Restoration On The Habitat Of The Cape Sable Seaside Sparrow, Annual Report Of 2004-2005, Michael S. Ross, Jay P. Sah, Pablo L. Ruiz, David T. Jones, Hillary Cooley, Rafael Travieso, Franco Tobias, James R. Snyder, David Hagyari

SERC Research Reports

The major activities in Year 3 on ‘Effect of hydrologic restoration on the habitat of the Cape Sable seaside sparrow (CSSS)’ included presentations, field work, data analysis, and report preparation. During this period, we made 4 presentations, two at the CSSS – fire planning workshops at Everglades National Park (ENP), one at the Society of Wetland Scientists’ meeting in Charleston, SC, and a fourth at the Marl Prairie/CSSS performance measure workshop at ENP. We started field work in the third week of January and continued till June 3, 2005. Early in the field season, we completed vegetation surveys along two …

Reliability, Effect Size, And Responsiveness And Intraclass Correlation Of Health Status Measures Used In Randomized And Cluster-Randomized Trials, Paula Diehr, Lu Chen, Donald L. Patrick, Ziding Feng, Yutaka Yasui

UW Biostatistics Working Paper Series

Background: New health status instruments are described by psychometric properties, such as Reliability, Effect Size, and Responsiveness. For cluster-randomized trials, another important statistic is the Intraclass Correlation for the instrument within clusters. Studies using better instruments can be performed with smaller sample sizes, but better instruments may be more expensive in terms of dollars, lost opportunities, or poorer data quality due to the response burden of longer instruments. Investigators often need to estimate the psychometric properties of a new instrument, or of an established instrument in a new setting. Optimal sample sizes for estimating these properties have not been studied …

Cross-Shore Variation Of Wind-Driven Flows On The Inner Shelf In Long Bay, South Carolina, United States, Benjamin T. Gutierrez, George Voulgaris, Paul A. Work

Faculty Publications

The cross-shore structure of subtidal flows on the inner shelf (7 to 12 m water depth) of Long Bay, South Carolina, a concave-shaped bay, is examined through the analysis of nearly 80 days of near-bed (1.7–2.2 m above bottom) current observations acquired during the spring and fall of 2001. In the spring and under northeastward winds (upwelling favorable) a two-layered flow was observed at depths greater than 10 m, while closer to the shore the currents were aligned with the wind. The two-layered flow is attributed to the presence of stratification, which has been observed under similar conditions in the …

South Florida Coastal Water Quality Monitoring Network - 10-12/05 Quarterly Report (C-15397), Joseph N. Boyer

SERC Research Reports

No abstract provided.