Digital Commons Network^™

Buff-Breasted Sandpiper Density And Numbers During Migratory Stopover In The Rainwater Basin, Nebraska, Joel G. Jorgensen, John P. Mccarty, Lareesa Wolfenbarger

Nebraska Game and Parks Commission: Staff Research Publications

The Buff-breasted Sandpiper (Tryngites subruficollis) is a shorebird of conservation concern whose migration patterns and population size are poorly known. We conducted surveys in the Eastern Rainwater Basin, Nebraska, in 2004 and 2005 using distance sampling. This survey produced density estimates of 0.09 birds per ha in 2004 and 0.04 birds per ha in 2005. Because the study area was explicitly defined by soil characteristics, we were able to extrapolate from density estimates to produce predictions of overall numbers in the study area. We produced minimum estimates of the numbers of Buff-breasted Sandpipers stopping over in the region—43 …

Genetic Isolation And Morphological Divergence Of Black Sea Bottlenose Dolphins, Karine A. Viaud-Martineza, Robert L. Brownell Jr., Andrew J. Bohonak, Anastasia Komnenouc

United States Department of Commerce: Staff Publications

The Black Sea is a semi-enclosed body of water that differs from the adjacent Mediterranean Sea in terms of its biodiversity, oceanographical and ecological characteristics. There is growing international concern about pollution in the Black Sea and other anthropogenic threats to its fauna. The bottlenose dolphin (Tursiops truncatus) is one of three species of cetaceans living in the Azov-Black Sea basin. Despite considerable research on bottlenose dolphins elsewhere, the extent of human impacts on the Black Sea populations is unknown. Previous attempts to award special conservation status to Black Sea cetaceans have failed specifically because policy makers have viewed their …

Spatial Methods For Plot-Based Sampling Of Wildlife Populations, Jay M. Ver Hoef

United States Department of Commerce: Staff Publications

Classical sampling methods can be used to estimate the mean of a finite or infinite population. Block kriging also estimates the mean, but of an infinite population in a continuous spatial domain. In this paper, I consider a finite population version of block kriging (FPBK) for plot-based sampling. The data are assumed to come from a spatial stochastic process. Minimizing mean-squared-prediction errors yields best linear unbiased predictions that are a finite population version of block kriging. FPBK has versions comparable to simple random sampling and stratified sampling, and includes the general linear model. This method has been tested for several …

An Animal Movement Model Incorporating Home Range And Habitat Selection, Aaron Christ, Jay Ver Hoef, Dale L. Zimmerman

United States Department of Commerce: Staff Publications

Wildlife biologists are often interested in how an animal uses space and the habitat resources within that space. We propose a single model that estimates an animal’s home range and habitat selection parameters within that range while accounting for the inherent autocorrelation in frequently sampled telemetry data. The model is applied to brown bear telemetry data in southeast Alaska.

Letter To The Editor: Comment On ‘‘Toxicity Of Weathered Exxon Valdez Crude Oil To Pink Salmon Embryos’’, Ron A. Heintz, Jeffrey W. Short, Stanley D. Rice, Mark G. Carls

United States Department of Commerce: Staff Publications

We take issue with an article by Brannon et al. in Environmental Toxicology and Chemistry questioning the validity of our work on the toxicity of petroleum-derived polycyclic aromatic hydrocarbons (PAHs) to the early life stages of fish. Beginning in 1997, we published a series of articles demonstrating adverse effects in response to PAH exposure at concentrations in the low parts per billion. Based on their attempt to reproduce our results, Brannon et al. argue that the effects we described were an artifact caused by contact with PAH-laden oil microdroplets instead of dissolved PAHs and, therefore, that our results likely are …

Some Fungi And Water Molds In Waters Of Lake Michigan With Emphasis On Those Associated With The Benthic Amphipod Diporeia Spp., Bozena Kiziewicz, Thomas F. Nalepa

United States Department of Commerce: Staff Publications

To determine types of fungi in the water and associated with the benthic amphipod Diporeia spp., samples were collected at various depths in Lake Michigan in an area where the Diporeia population was in a severe state of decline. No fungi were found associated with living, freshly-dead, or dried Diporeia cultured separately from Lake Michigan water. When dead Diporeia and other organic substrates (snake skin and hemp seeds) were used to grow fungi in Lake Michigan water, a rich and diverse fungal and water mold community was revealed. A total of 31 species were found, with the most common genera …

Random Coding Bounds For Dna Codes Based On Fibonacci Ensembles Of Dna Sequences, A. D'Yachkov, A. Macula, T. Renz, V. Rykov

United States Air Force: Publications

We consider DNA codes based on the concept of a weighted 2-stem similarity measure which reflects the ”hybridization potential” of two DNA sequences. A random coding bound on the rate of DNA codes with respect to a thermodynamic motivated similarity measure is proved. Ensembles of DNA strands whose sequence composition is restricted in a manner similar to the restrictions in binary Fibonacci sequences are introduced to obtain the bound.

Dna Codes Based On Stem Similarities Between Dna Sequences, Arkadii D'Yachkov, Anthony Macula, Vyacheslav Rykov, Vladimir Ufimtsev

United States Air Force: Publications

DNA codes consisting of DNA sequences are necessary for DNA computing. The minimum distance parameter of such codes is a measure of how dissimilar the codewords are, and thus is indirectly a measure of the likelihood of undetectedable or uncorrectable errors occurring during hybridization. To compute distance, an abstract metric, for example, longest common subsequence, must be used to model the actual bonding energies of DNA strands. In this paper we continue the development [1,2,3] of similarity functions for q-ary n-sequences The theoretical lower bound on the maximal possible size of codes, built on the space endowed with …

A New Framework For Urban Sustainability Assessments: Linking Complexity, Information And Policy, Moira L. Zellner, Thomas L. Theis, Arunprakash T. Karunanithi, Ahjond S. Garmestani, Heriberto Cabezas

United States Environmental Protection Agency: Publications

Urban systems emerge as distinct entities from the complex interactions among social, economic and cultural attributes, and information, energy and material stocks and flows that operate on different temporal and spatial scales. Such complexity poses a challenge to identify the causes of urban environmental problems and how to address them without causing greater deterioration. Planning has traditionally focused on regulating the location and intensity of urban activities to avoid environmental degradation, often based on assumptions that are rarely revisited and producing ambiguous effects. The key intellectual challenge for urban policy-makers is a fuller understanding of the complexity of urban systems …

Hydrographic Surveys For Six Water Bodies In Eastern Nebraska, 2005–07, Michaela R. Johnson, Michael J. Andersen, Sonja K. Sebree

United States Geological Survey: Publications

The U.S. Geological Survey, in cooperation with the Nebraska Department of Environmental Quality, completed hydrographic surveys for six water bodies in eastern Nebraska: Maskenthine Wetland, Olive Creek Lake, Standing Bear Lake, Wagon Train Lake and Wetland, Wildwood Lake, and Yankee Hill Lake and sediment basin. The bathymetric data were collected using a boat-mounted survey-grade fathometer that operated at 200 kHz, and a differentially corrected Global Positioning System with antenna mounted directly above the echo-sounder transducer. Shallow-water and terrestrial areas were surveyed using a Real-Time Kinematic Global Position¬ing System. The bathymetric, shallow-water, and terrestrial data were processed in a geographic information …

Summary And Analysis Of The U.S. Government Bat Banding Program, Laura Ellison

United States Geological Survey: Publications

This report is a summary of the Bat Banding Program (BBP) administered, coordinated, and maintained by the U.S. Bureau of Biological Survey in the Department of Agriculture and its successor, the U.S. Fish and Wildlife Service in the Department of the Interior from 1932 to 1972. Bands were issued and copies of the permanent records were maintained at the Bird and Mammal Laboratories, U.S. National Museum, Washington, D.C., during the active parts of the program (1932–72). Following various agency transfers within the Department of the Interior, the files and documentation for this program are currently maintained in the same location, …

Estimated Flood Discharges And Map Of Flood-Inundated Areas For Omaha Creek, Near Homer, Nebraska, 2005, Benjamin J. Dietsch, Richard C. Wilson, Kellan R. Strauch

United States Geological Survey: Publications

Repeated flooding of Omaha Creek has caused damage in the Village of Homer. Long-term degradation and bridge scouring have changed substantially the channel characteristics of Omaha Creek. Flood-plain managers, planners, homeowners, and others rely on maps to identify areas at risk of being inundated.
To identify areas at risk for inundation by a flood having a 1-percent annual probability, maps were created using topographic data and water-surface elevations resulting from hydrologic and hydraulic analyses. The hydrologic analysis for the Omaha Creek study area was performed using historical peak flows obtained from the U.S. Geological Survey streamflow gage (station number 06601000). …

Hydrogeology, Chemical Characteristics, And Transport Processes In The Zone Of Contribution Of A Public-Supply Well In York, Nebraska, Matthew K. Landon, Brian R. Clark, Peter B. Mcmahon, Michael J. Turco, Virginia L. Mcguire

United States Geological Survey: Publications

In 2001, the U.S. Geological Survey, as part of the National Water Quality Assessment (NAWQA) Program, initiated a topical study of Transport of Anthropogenic and Natural Contaminants (TANC) to PSW (public-supply wells). Local-scale and regional-scale TANC study areas were delineated within selected NAWQA study units for intensive study of processes effecting transport of contaminants to PSWs. This report describes results from a local-scale TANC study area at York, Nebraska, within the High Plains aquifer, including the hydrogeology and geochemistry of a 108-square-kilometer study area that contains the zone of contribution to a PSW selected for study (study PSW), and describes …

Scale-Dependent Desorption Of Uranium From Contaminated Subsurface Sediments, Chongxuan Liu, John M. Zachara, Nikolla P. Qafoku, Zheming Wang

United States Department of Energy: Publications

Column experiments were performed to investigate the scale-dependent desorption of uranyl [U(VI)] from a contaminated sediment collected from the Hanford 300 Area at the U.S. Department of Energy (DOE) Hanford Site, Washington. The sediment was a coarse-textured alluvial flood deposit containing significant mass percentage of river cobble. U(VI) was, however, only associated with its minor fine-grained (<2 mm) mass fraction. U(VI) desorption was investigated both from the field-textured sediment using a large column (80 cm length by 15 cm inner diameter) and from its <2 mm U(VI)- associated mass fraction using a small column (10 cm length by 3.4 cm inner diameter). Dynamic advection conditions with intermittent flow and stop-flow events of variable durations were employed to investigate U(VI) desorption kinetics and its scale dependence. A multicomponent kinetic model that integrated a distributed rate of mass transfer with surface complexation reactions successfully described U(VI) release from the fine-grained U(VI)-associated materials. The field-textured sediment in the large column displayed dual-domain tracer-dependent mass transfer properties that affected the breakthrough curves of bromide, pentafluorobenzoic acid (PFBA), and tritium. The tritium breakthrough curve showed stronger nonequilibrium behavior than did PFBA and bromide and required a larger immobile porosity to describe. The dual-domain mass transfer properties were then used to scale the kinetic model of U(VI) desorption developed for the fine-grained materials to describe U(VI) release and reactive transport in the field-textured sediment. Numerical simulations indicated that the kinetic model that was integrated with the dual-domain properties determined from tracer PFBA and Br best described the experimental results. The kinetic model without consideration of the dual-domain properties overpredicted effluent U(VI) concentrations, while the model based on tritium mass transfer underpredicted the rate of U(VI) release. Overall, our results indicated that the kinetics of U(VI) release from the field-textured sediment were different from that of its fine-grained U(VI)-associated mass fraction. However, the desorption kinetics measured on the U(VI)-containing mass fraction could be scaled to describe U(VI) reactive transport in the contaminated field-textured sediment after proper consideration of the physical transport properties of the sediment. The research also demonstrated a modeling approach to integrate geochemical processes into field-scale reactive transport models.

Cyanobacterial Harmful Algal Blooms: Chapter 9: Causes, Prevention, And Mitigation Workgroup Report, Paul Berger, Justin Brooks, Terence Evens, Christopher Gobler, Jennifer Graham, James Hyde, Dawn Karner, Dennis (Kevin) O'Shea, Valerie Paul, Hans Paerl, Michael Piehler, Barry Rosen, Mary Santelmann, Pat Tester, Judy Westrick

United States Environmental Protection Agency: Publications

Cyanobacteria (blue-green algae) are estimated to have evolved 3.5 billion years ago, at which time they began to add oxygen to the existing anaerobic atmosphere, actually changing the chemistry of the planet and allowing new life forms to evolve. These ubiquitous microbes are capable of tolerating desiccation, hypersalinity, hyperthermal conditions, and high ultraviolet radiation, often for extensive periods of time. Recently, cyanobacteria have responded to human alterations of aquatic environments, most notably nutrient-enhanced primary production, or eutrophication. In fact, cyanobacterial blooms are now viewed as widespread indicators of freshwater, brackish and marine eutrophication.

Due to the complex interactions between physical …

Nitrogen In The Environment: Chapter 10. Nitrogen Effects On Coastal Marine Ecosystems, J.R. Kelly

United States Environmental Protection Agency: Publications

Throughout the 20th century, a rapidly growing human population increased the global circulation of nitrogen (N). In the United States and elsewhere, human populations and activities have been disproportionately distributed towards coastlines, leading to markedly increased N inputs to coastal receiving waters. Nitrogen inputs to coastal waters come from the land, from the sea, and from the air; because of these multiple sources and the complexity of the N cycle, confident estimates of total N loading to coastal systems are not routine. Ecological problems from increasing inputs of N to coastal waters are well known and arise from stimulation of …

Generic Simulation Models For Facilitating Stakeholder Involvement In Water Resources Planning And Management: A Comparison, Evaluation, And Identification Of Future Needs, H. Assata, E. Van Beek, C. Borden, P. Gijsbers, A. Jolma, S. Kaden, M. Kaltofen, J.W. Labadie, D.P. Loucks, N.W.T. Quinn, J. Sieber, A. Sulis, W.J. Werick, D.M. Wood

United States Department of Energy: Publications

Water resources planning and management tools have been moving away from a top down (command and control) approach to a bottom up (grass-roots) approach - which emphasizes the involvement of stakeholders, not only specialists, in all stages of planning - from the identification of problems and issues, the selection of potential solutions to project implementation and operation. Ideally, a participatory grassroots planning process should provide a transparent and flexible platform for all stakeholders to collectively: examine the main elements of their shared water system; understand the main issues and problems to be addressed; participate in identifying alternative policies; and select …

Adaptive Harvest Management Working Group Annual Meeting Summary

United States Fish and Wildlife Service: Publications

For several years, Flyway Technical Committees and Councils have expressed some concern over the direction of the waterfowl harvest regulation setting process. Many of the issues that have been raised are fundamentally of a policy nature. The intent of the first session was to provide an opportunity for the state Flyway representatives to summarize the perspectives of their Flyways with respect to current approaches to regulations setting. The Working Group would then explore common themes among the Flyway comments. Being privy in advance to some of the concerns raised by the Flyways, U.S. Fish and Wildlife Service (FWS) Division of …

Soil Chemistry Northwest New Mexico, Larry V. Benson

United States Geological Survey: Datasets

These data result from soil chemistry samples extracted from several regions in northwest New Mexico and were used in the following publications:

Larry V. Benson, J. Stein, H. Taylor, R. Friedman, and T. C. Windes. 2006. The agricultural productivity of Chaco Canyon and the source(s) of pre-Hispanic maize found in the Pueblo Bonito Great House. In: J. E. Staller, R. H. Tykot, and B. F. Benz, eds. Histories of Maize: Multidisciplinary Approaches to the Prehistory, Linguistics, Biogeography, Domestication, and Evolution of Maize, 289–314. Elsevier/Academic Press.

Larry V. Benson. 2017. The Chuska Slope as an agricultural alternative to Chaco …

Intelligent Environmental Decision Support Systems, M. Sànchez-Marrè, K. Gibert, R. S. Sojda, J. P. Steyer, P. Struss, I. Rodríguez-Roda, J. Comas, V. Brilhante, E. A. Roehl

United States Geological Survey: Staff Publications

Introduction
Complexity of environmental systems
New tools for a new paradigm
Intelligent Environmental Decision Support Systems (IEDSS)
IEDSS development
About Uncertainty Management
Temporal Reasoning
Featuring the problem
Approaches to temporal reasoning
Case-based reasoning for temporal reasoning
Geographic Information and Spatial Reasoning
Understanding spatial reasoning
Kriging and variants
Representing change/time steps/feedback loops
Middleware. blackboards and communication protocols
Multiagent systems
Evaluation of IEDSS and Benchmarking
Benchmarking
Conclusions and Future Trends

Solar Ultraviolet B Radiation Compared With Prostate Cancer Incidence And Mortality Rates In United States, Janet L. Colli, William B. Grant

United States Department of Veterans Affairs: Publications

OBJECTIVE

To investigate whether the prostate cancer incidence and mortality rates in the United States correlate inversely with solar ultraviolet (UV) B radiation levels computed from a mathematical model using forecasted ozone levels, cloud levels, and elevation. Another objective was to explore whether the annual prostate cancer rates correlated more strongly with the cumulative UVB exposure for the year or for exposure during certain seasons.

METHODS

The age-adjusted incidence and mortality cancer rates for black and white men in the continental United States were correlated with the mean UV index values averaged for the year and for each season.

RESULTS …

University Of Nebraska- Lincoln: Fact Book 2007-2008

University of Nebraska-Lincoln Administration: Reports, Papers, Publications, and Presentations

Fact Book Table of Contents

General Information

UNL Core Values .............................................................................. 4

Role and Mission Statement ............................................................. 5

Institutional & Professional Accreditations ..................................................... 8

UNL Organizational Chart ................................................................... 10

Student Credit Hours

UNL Student Credit Hours Total Fall & Spring Semester, by College, 5 Year Trend ................... 11

UNL Student Credit Hours Total Fall, by College, 5 Year Trend .................................................. 12

UNL Student Credit Hours Total Spring, By College, 5 Year Trend ............................................. 13

Summer Sessions Student Credit Hours ...................................................... 14

Retention, Degrees and Majors

UNL Student Retention & Graduation Rate Analysis ...................................... 15

Total Degrees Conferred by UNL Fiscal …

Detection, Occurrence And Fate Of Emerging Contaminants In Agricultural Environments (2008), Daniel D. Snow, Shannon L. Bartelt-Hunt, Samuel E. Saunders, Shannon L. Devivo, David A. Cassada

Nebraska Water Center: Faculty Publications

Agricultural settings are affected by a unique set of environmental contaminants typically associated with land use. Nutrients and sediments from run-off and erosion have historically been, and continue to be, studied and understood with respect to their impacts to aquatic environments. Studies involving newer classes of contaminants, such as pharmaceuticals and steroids, are becoming more prevalent as methods for measuring these compounds become available. These “emerging” contaminants clearly have potential to enter the environment and cause known or suspected adverse ecological or human health effects. Release of these contaminants to the environment has occurred for quite some time, but methods …

Newsletter Of The Wildlife Society Wildlife Damage Management Working Group Interactions: Volume 14 Issue 1 Winter 2008

TWS Wildlife Damage Management Working Group Newsletter

New Board Members Selected; Feel like You’ve Been There Before? Letters F Rom Art; New Publications: HWC Volume 2-1 Now Available; Call For Posters: 23rd Vertebrate Pest Conference; Decision 2007! Election Results - Meet the New Board Members; Calls From The Field (Or A House, Or A Farm, Or A…); 23rd Vertebrate Pest Conference San Diego California; 2008 National Conference On Feral Hogs; Call for Papers: 2008 National Conference on Feral Hogs; Call for Papers: Habitat and the Predation Process A Special Symposium at the 2008 TWS Meeting; Human-Wildlife Conflict In The News; Recent Wildlife Damage Management Research; The Wildlife …

On Constitutive Models For Limited Elastic, Molecular Based Materials, Millard F. Beatty

Department of Engineering Mechanics: Faculty Publications

The response function for a general class of elastic molecular based materials characterized by their limiting molecular chain extensibility and depending on only the first principal invariant of the Cauchy–Green deformation tensor together with a certain molecular based limiting extensibility parameter is introduced. The constitutive response function for the Gent material is then derived inversely as the [0/1] Padé approximant of this class, a result that leads naturally to an infinite geometric series representation of its response function. Truncation of this series function characterizes a familiar class of quadratic materials now having physically relevant material constants. It is shown that …

Catching The Light, Catching The Waves: The Suzani Collection Of Doris Duke At Shangri La In Honolulu, Hawai‛I, Carol Bier

Textile Society of America: Symposium Proceedings

Among the earliest collections of suzani in the United States is that acquired by Doris Duke, kept at Shangri La, the home she built in Honolulu. Nine of the suzani she purchased in India while on her honeymoon in 1935. In January 2005 the Shangri La Suzani Research Project initiated a collaborative effort to document Duke's collection with respect to materials, stitches, designs, patterns, colors, and ground fabrics. Suzanis represent an urban embroidery tradition in the 19th century and perhaps earlier; they are worked by young women of Uzbekistan and neighboring regions in Central Asia. Bright and colorful, they are …

“Revisiting The Ocucaje Opened Tunic From The Textile Museum; Washington, D.C.: Textile Models And The Process Of Imitation”, Sophie Desrosiers

Textile Society of America: Symposium Proceedings

Features of the Ocucaje textile (accession number 1959.11.1) belonging to the Textile Museum Washington, D.C. have previously been analyzed by Mary Frame as representing designs derived from thread and sprang imagery.  A new look at the textile reveals a textile model. The origin of this model will be traced as well as the innovation of new procedures used in the process of imitation.

The Quilt Index: Communicating Stories In The Stitches, Mary Worrall, Marsha Macdowell, Justine Richardson

Textile Society of America: Symposium Proceedings

Investigations into the historical, cultural and sociological roles of quilts have become a focus for scholars across a range of disciplines. Scores of grassroots state and regional quilt documentation projects have focused on documenting quilts’ personal and community contexts, as well as capturing the history of their production, ownership, use, and describing their physical appearance. Enabling both scholars and a broad general audience to access this information is central to furthering the role that these ubiquitous textiles can play in such scholarship.  The Quilt Index (www.quiltindex.org) is a comprehensive, digital library that provides access to extensive documentation on quilts and …

The Iemoto System And The Development Of Contemporary Quiltmaking In Japan, Nao Nomura

Textile Society of America: Symposium Proceedings

In 1975, the first American quilt exhibition toured some of the major cities in Japan including Tokyo and Kyoto and attracted a large number of audience. This exhibition made American quilts widely known to Japanese women and quiltmaking soon became a popular form of needlework among the middle-class women. Now, Japan boasts one of the world’s largest quilt populations and exhibitions, and many classes are offered all over the country throughout the year. In contrast to American quilters who often learn to quilt through informal practice with friends, families or local communities and by attending short-term workshops, many Japanese quilters …

“Revisiting The Ocucaje Opened Tunic From The Textile Museum; Washington, D.C.: Textile Models And The Process Of Imitation”, Sophie Desrosiers

Textile Society of America: Symposium Proceedings

The opened tunic from the Textile Museum in Washington D. C. (fig. 1) is a beautiful object the colors and design of which are well known since a part of it was used 22 years ago on the cover of The Junius B. Bird Conference On Andean Textiles. The tunic has no archaeological context, but its characteristics place it among Early Horizon Epoch 9 woven fabrics from Ocucaje.

Mary Elizabeth King has described the piece in her doctoral thesis. It is made of four widths: two main panels in balanced plain-weave with discontinuous warp-and-weft, and two borders in triple …