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Comparison Of Nitrogen Fertilization Methods And Rates For Subsurface Drip Irrigated Corn In The Semi-Arid Great Plains, D. D. Tarkalson, J. O. Payero

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

In semi‐arid areas such as western Nebraska, interest in subsurface drip irrigation (SDI) for corn is increasing due to restricted irrigation allocations. However, crop response quantification to nitrogen (N) applications with SDI and the environmental benefits of multiple in‐season (IS) SDI N applications instead of a single early‐season (ES) surface application are lacking. The study was conducted in 2004, 2005, and 2006 at the University of Nebraska‐Lincoln West Central Research and Extension Center in North Platte, Nebraska, comparing two N application methods (IS and ES) and three N rates (128, 186, and 278 kg N ha^-1) using a …

U.S. Army Corps Of Engineers Omaha District Quarterly Drought Report, February 2008

United States Army Corps of Engineers, Omaha District

Current Conditions

Reservoir Predictions

Drought Outlook

Missouri River Region Mountain Snowpack Report

Ft. Peck, Montana

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Garrison, North Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Boat Ramp Information

Noxious Weeds Overview

Cultural Resources Overview

Other Areas of Interest/Concern

Oahe, South Dakota

Reservoir Elevation Overview

Water Intake Overview

Access Overview

Noxious Weeds Overview

Cultural Resources Overview

Mainstem Reservoir Storage Comparison Water Years 2004, 2005, 2006, 2007, 2008

Ft. Peck, MT

Garrison, ND

Oahe, SD

Ecosystem Services Derived From Wetland Conservation Practices In The United States Prairie Pothole Region With An Emphasis On The U.S. Department Of Agriculture Conservation Reserve And Wetlands Reserve Programs, Robert A. Gleason, Murray K. Laubhan, Brian A. Tangen, Kevin E. Kermes

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Contents:

Chapter A Background and Approach to Quantification of Ecosystem Services By Robert A. Gleason and Murray K. Laubhan

Chapter B Plant Community Quality and Richness By Murray K. Laubhan and Robert A. Gleason

Chapter C Carbon Sequestration By Robert A. Gleason, Brian A. Tangen, and Murray K. Laubhan

Chapter D Floodwater Storage By Robert A. Gleason and Brian A. Tangen

Chapter E Reduction of Sedimentation and Nutrient Loading By Brian A. Tangen and Robert A. Gleason

Chapter F Proposed Approach to Assess Potential Wildlife Habitat Suitability on Program Lands By Murray K. Laubhan, Kevin E. Kermes, and Robert A. …

Effects, Uptake, And Fate Of 2,4,6-Trinitrotoluene Aged In Soil In Plants And Worms, Elly Ph Best, Henry E. Tatem, Kaaren N. Geter, Melissa L. Wells, Brian K. Lane

United States Army Corps of Engineers, Omaha District

The present study was aimed at providing data to be used at predicting exposure-based effects of 2,4,6-trinitrotoluene (TNT) aged in soil on endpoint organisms representing two trophic levels. These data can be used to define criteria or reference values for environmental management and conducting specific risk assessment. Long-term exposure tests were conducted to evaluate sublethal toxicity and uptake of aged soil-based explosives, with TNT as the main contaminant. In these tests, plants were exposed for 55 d, and biomass and explosives residues were determined. Worms were exposed for 28 and 42 d, and biomass, number, and tissue residues were determined. …

Spatial Dynamics Of Overbank Sedimentation In Floodplain Systems, Aaron R. Pierce, Sammy L. King

United States Geological Survey: Staff Publications

Floodplains provide valuable social and ecological functions, and understanding the rates and patterns of overbank sedimentation is critical for river basin management and rehabilitation. Channelization of alluvial systems throughout the world has altered hydrological and sedimentation processes within floodplain ecosystems. In the loess belt region of the Lower Mississippi Alluvial Valley of the United States, channelization, the geology of the region, and past land-use practices have resulted in the formation of dozens of valley plugs in stream channels and the formation of shoals at the confluence of stream systems. Valley plugs completely block stream channels with sediment and debris and …

Linking Ecosystem Processes With Wetland Management Goals: Charting A Course For A Sustainable Future, Ned H. Euliss Jr., Loren M. Smith, Douglas A. Wilcox, Bryant A. Browne

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Wetland management in the United States has never been as challenging as in today’s highly modified landscape. Initially, wetland science and management emerged as professions in response to widespread conversion of wetlands to other uses and concerns over negative impacts on wildlife populations, especially migratory birds. Consequently, wetland management was focused on wildlife, and the initial management technique was simply to protect wetlands. However, extensive conversion of lands for agricultural and urban expansion over the past 60 years has modified ecosystem processes at the landscape scale sufficiently to compromise wetland management activities on adjacent lands dedicated to conservation. Moreover, society …

Integrated Modelling Frameworks For Environmental Assessment And Decision Support, A. E. Rizzoli, G. Leavesley, J. C. Ascough Ii, R. M. Argent, I. N. Athanasiadis, V. Brilhante, F. H. A. Claeys, O. David, M. Donatelli, P. Gijsbers, D. Havlik, A. Kassahun, P. Krause, N. W. T. Quinn, H. Scholten, R. S. Sojda, F. Villa

United States Geological Survey: Staff Publications

As argued in Chapter 1, modern management of environmental resources defines problems from a holistic and integrated perspective, thereby imposing strong requirements on Environmental Decision Support Systems (EDSSs) and Integrated Assessment Tools (IATs). These systems and tools tend to be increasingly complex in terms of software architecture and computational power in order to cope with the type of problems they must solve. For instance, the discipline of Integrated Assessment (IA) needs tools that arc able to span a wide range of disciplines, from socio-economics to ecology to hydrology. Such tools must support a wide range of methodologies and techniques like …

Ex-Situ And In-Situ Selenization Of Copper-Indium And Copper-Boron Thin Films, Rodney J. Soukup, Natale J. Ianno, Chad Kamler, Martin Diaz, Shuchi Sharma, James Huguenin-Love, Jiri Olejnicek

Department of Electrical and Computer Engineering: Faculty Publications

It has recently been established that the ideal bandgap for terrestrial photovoltaics is 1.37 eV and the bandgap for CulnSe2 is only around 1.04 eV. Thus, a larger bandgap is needed. However, neither the substitution of Ga nor of AI has made a high efficiency solar cell absorber with a band gap of 1.37 eV possible. B, an even smaller atom, should require less atomic substitution than either Ga or AI to achieve a wider bandgap. In order to fabricate a thin film of Culn_xB_1-xSe₂ (CIBS), Cu, In and B were deposited from a variety …

Bringing Land In The Conservation Reserve Program Back Into Crop Production Or Grazing, Joel K. Ransom, Dwight G. Aakre, Dave Franzen

A Series – Agronomy/Plant Science

No abstract provided.

Bioaccumulation Of Pharmaceuticals And Other Anthropogenic Waste Indicators In Earthworms From Agricultural Soil Amended With Biosolid Or Swine Manure, Chad Kinney, Edward Furlong, Dana Kolpin, Mark Burkhardt, Steven Zaugg, Stephen Werner, Joseph Bossio, Mark Benotti

United States Geological Survey: Staff Publications

Analysis of earthworms offers potential for assessing the transfer of organic anthropogenic waste indicators (AWIs) derived from land-applied biosolid or manure to biota. Earthworms and soil samples were collected from three Midwest agricultural fields to measure the presence and potential for transfer of 77 AWIs from land-applied biosolids and livestock manure to earthworms. The sites consisted of a soybean field with no amendments of human or livestock waste (Site 1), a soybean field amended with biosolids from a municipal wastewater treatment plant (Site 2), and a cornfield amended with swine manure (Site 3). The biosolid applied to Site 2 contained …

The Empirics Of Prison Growth: A Critical Review And Path Forward, John F. Pfaff

Faculty Scholarship

A growing empirical literature has sought to explain the forces behind the significant expansion of the U.S. prison population over the past thirty years. Unfortunately, the studies to date have suffered from important methodological, conceptual, and definitional problems that have significantly curtailed their ability to identify causal effects. In this Article, I examine several of the central limitations and discuss remedies. I start by reviewing the theories that investigators have sought to test. I then discuss the studies' empirical defects, such as failing to account for endogenous relationships, overlooking the risk of model dependency, ignoring complex dynamic relationships, using variables …

Synthesis And Bioassay Of Improved Mosquito Repellents Predicted From Chemical Structure, Alan R. Katritzky, Zuoquan Wang, Svetoslav Slavov, Maia Tsikolia, Dimitar Dobchev, Novruz G. Akhmedov, C. Dennis Hall, Ulrich R. Bernier, Gary G. Clark, Kenneth Linthicum

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Mosquito repellency data on acylpiperidines derived from the United States Department of Agriculture archives were modeled by using molecular descriptors calculated by CODESSA PRO software. An artificial neural network model was developed for the correlation of these archival results and used to predict the repellent activity of novel compounds of similar structures. A series of 34 promising N-acylpiperidine mosquito repellent candidates (4a–4q’) were synthesized by reactions of acylbenzotriazoles 2a–2p with piperidines 3a–3f. Compounds (4a–4q’) were screened as topically applied mosquito repellents by measuring the duration of repellency after application to cloth patches worn on the arms of human volunteers. Some …

Metals Fate And Transport Modelling In Streams And Watersheds: State Of The Science And Usepa Workshop Review, B. S. Caruso, T. J. Cox, R. L. Runkel, M. L. Velleux, K. E. Bencala, D. K. Nordstrom, P. Y. Julien, B. A. Butler, Charles N. Alpers, A. Marion, K. S. Smith

United States Geological Survey: Staff Publications

Metals pollution in surface waters from point and non-point sources (NPS) is a widespread problem in the United States and worldwide (Lofts et al., 2007; USEPA, 2007). In the western United States, metals associated with acid mine drainage (AMD) from hardrock mines in mountainous areas impact aquatic ecosystems and human health (USEPA, 1997a; Caruso and Ward, 1998; Church et al., 2007). Metals fate and transport modelling in streams and watersheds is sometimes needed for assessment and restoration of surface waters, including mining-impacted streams (Runkel and Kimball, 2002; Caruso, 2003; Velleux et al., 2006). The Water Quality Analysis …

Oligo(Vinylidene Fluoride) Langmuir-Blodgett Films Studied By Spectroscopic, Rafal Korlacki, J. Travis Johnston, Jihee Kim, Stephen Ducharme, Daniel W. Thompson, Vladimir M. Fridkin, Zhongxin Ge, James M. Takacs

Stephen Ducharme Publications

Thin films of amphiphilic vinylidene fluoride oligomers prepared by Langmuir–Blodgett deposition on silicone substrates were investigated by comparing experimental and theoretical mid-infrared (IR) spectra. The experimental spectra were obtained using infrared spectroscopic ellipsometry. Theoretical spectra were calculated using density functional theory. Excellent correspondence of major IR bands in both data sets shows that the molecular backbone is oriented with the long axis normal to the substrate plane. This is in contrast to poly vinylidene fluoride[1] LB films, in which the polymer chains are parallel to the substrate.

The Reach Of Literal Claim Scope Into After-Arising Technology: On Thing Construction And The Meaning Of Meaning, Kevin Emerson Collins

Articles by Maurer Faculty

Broadly speaking, courts and commentators have offered two theories to explain the relationship between the literal scope of a patent claim and after-arising technology (AAT), i.e. technology that is not discovered until after a claim has been filed. The fixation theory asserts that claim scope is and/or should be fixed on the date a claim is filed and that this fixation makes it impossible for the claim to encompass AA T because a claim must grow in some sense after the filing date in order to encompass AA T. In stark contrast, the growth theory argues that literal claim scope …

Nebraska Winery And Grape Growers Forum And Trade Show, John Owens

John Owens: Speeches and Appearances

Good afternoon, everyone, and welcome to this 11th annual Nebraska Winery and Grape Growers Forum and Trade Show. I'm John Owens, University of Nebraska Vice President and Harlan Vice Chancellor of the Institute of Agriculture and Natural Resources. I'm delighted to be with you on this second day of a very fine and informative conference.

Casnr Salute To Graduates, John Owens

John Owens: Speeches and Appearances

We appreciate your being with us this afternoon as we celebrate the accomplishments of tomorrow's graduates from the University of Nebraska-Lincoln. Thank you for attending and, congratulations to the class of 2008! This ceremony has become both a fixture and a tradition in the College of Agricultural Sciences and Natural Resources. As a matter of fact, it took the national "First Place Award" in a 2006 competition that was open to all universities in the United States.

Louv Presentation, John Owens

John Owens: Speeches and Appearances

Good evening everyone, and welcome to this highly anticipated presentation by Richard Louv, author of "Last Child in the Woods: Saving our Children from Nature Deficit Disorder."

Ianr Research And Extension Centers And Their Associated Districts, John Owens

John Owens: Speeches and Appearances

It's a pleasure to have this opportunity to speak with you about the University’s four strategically placed Research and Extension Centers and their associated extension districts, all part of the Institute of Agriculture and Natural Resources at the University of Nebraska-Lincoln.

National Science Foundation - 4-H Robotics Grant Announcement, John Owens

John Owens: Speeches and Appearances

Bullets for announcement of the nearly $2.5 million grant to 4-H from the National Science Foundation to take its robotics curriculum national.

Presidential Address: Nothing Succeeds Like Excess, Steven A. Nadler

Harold W. Manter Laboratory of Parasitology: Faculty Publications

To the members of the American Society of Parasitologists, I offer my appreciation for the opportunity to serve as your president. When I was notified of my successful election as an officer, it brought to mind that famous remark by Adlai Stevenson who said, ‘‘In America, anybody can be president. That’s one of the risks you take.’’ So, what I initially perceived as somewhat of a risky venture, proved to be a more valuable and interesting experience than I anticipated. Let’s hope that my presidential address has a similar outcome.

The Kinetic Energy Dependent Effective Debye Temperature For Cos2 (100), Ning Wu, David Wisbey, Takashi Komesu, Z. X. Yu, M. Manno, L. Wang, C. Leighton, Peter A. Dowben

Peter Dowben Publications

The effective Debye temperatures of the highly spin-polarized material CoS₂ were measured using temperature dependent low energy electron diffraction and shown to be dependent upon electron kinetic energy. The normal dynamic motion of the (100) surface results in the effective surface Debye temperature of 326 ± 9 K compared to a bulk Debye temperature of 612 ± 24 K. Similar values for the bulk Debye temperature have been obtained through LEED I(V) analysis, core level photoemission with a lower value for the bulk Debye temperature found from heat capacity measurements.

Interface-Induced Spin And Dipole Ordering Of The Copper Spin ½ Molecule: Bis(4-Cyano-2,2,6,6-Tetramethyl-3,5-Heptanedionato)Copper(Ii), David Wisbey, Ning Wu, Danqin Feng, Anthony N. Caruso, John Belot, Yaroslav B. Losovyj, Elio Vescovo, Peter A. Dowben

Peter Dowben Publications

Using light-polarization-dependent angle-resolved photoemission, the metal-organic molecule bis(4-cyano- 2,2,6,6-tetramethyl-3,5-heptanedionato)copper(II) (or Cu(CNdpm)₂, i.e., C₂₄H₃₆N₂O₄Cu, Cu(II)) is observed to adopt a preferential orientation that depends on the film thickness and substrate when adsorbed on Co(111) and Cu(111). In addition, the final-state binding energies change with film thickness, suggesting the substrates affect the screening or charging in the photoemission final state. For Cu(CNdpm)₂ deposited on Co(111), the induced spin polarization was found to depend strongly on the molecular orbital contributions.

The Surface Stability Of Cos2(100), Ning Wu, Renat F. Sabirianov, Chun-Gang Duan, Wai-Ning Mei, David Wisbey, Yaroslav B. Losovyj, M. Manno, C. Leighton, En Cai, Jiandi Zhang, Peter A. Dowben

Peter Dowben Publications

The stability of various possible terminations of the CoS₂ (1 × 1) surface have been explored and theoretical expectations are found to agree with experiment. With extensive annealing, there is a phase separation at the (100) surface of CoS₂. Sulfur segregation to the surface leads to a significant change in the largely sulfur bands due to changes in the hybridized bands, with cobalt. Resonant photoemission spectra indicate clearly that the hybridized cobalt and sulfur bands, characteristic of the CoS₂ bulk, lie at higher binding energies than those of segregated sulfur layers. This is discussed in terms …

The Cms Experiment At The Cern Lhc, S. Chatrchyan, Kenneth A. Bloom, Brian Bockelman, Daniel R. Claes, Aaron Dominguez, Michael Eads, Makoto Furukawa, J. Keller, T. Kelly, Carl Lundstedt, Sudhir Malik, Gregory Snow, David R. Swanson, Cms Collaboration

Kenneth Bloom Publications

The Compact Muon Solenoid (CMS) detector is described. The detector operates at the Large Hadron Collider (LHC) at CERN. It was conceived to study proton-proton (and leadlead) collisions at a centre-of-mass energy of 14 TeV (5.5 TeV nucleon-nucleon) and at luminosities up to 10³⁴ cm^-2s^-1 (10²⁷ cm^-2s^-1). At the core of the CMS detector sits a high-magnetic field and large-bore superconducting solenoid surrounding an all-silicon pixel and strip tracker, a lead-tungstate scintillating-crystals electromagnetic calorimeter, and a brass-scintillator sampling hadron calorimeter. The iron yoke of the flux-return is instrumented with four stations …

Economic Analysis Of Labor And Employment Law In The New Economy, Kenneth G. Dau-Schmidt, Alan Hyde, Michael Risch, Jagdeep Bhandari, Richard Block

Articles by Maurer Faculty

No abstract provided.

Bird Use Of Stormwater-Management Ponds: Decreasing Avian Attractants On Airports, Bradley F. Blackwell, Laurence Schafer, David Helon, Michael Linnell

United States Department of Agriculture Wildlife Services: Staff Publications

Characteristics of stormwater-management ponds that contribute to avian hazards to aviation at airports have not been quantified. We selected 30 stormwater-management ponds (average 0.1 ha), approximately 50km from Seattle-Tacoma International Airport, as surrogates to on-airport facilities. We conducted 46 weeks of avian surveys (between 14 February 2005 and 17 February 2006) and evaluated model fit of 6 a priori models relative to pond use by an avian group via Kullback–Leibler information. Our full model, composed of pond surface area (sa), ratio of area of open water to area of emergent and woody vegetation (ow:ew), perimeter irregularity, and geographic isolation, was …

Judicial Iron Triangles: The Roadless Rule To Nowhere—And What Can Be Done To Free The Forest Service's Rulemaking Process, Christopher Cumings

Oklahoma Law Review

No abstract provided.

An Integrated Vehicle-Mounted Telemetry System For Vhf Telemetry Applications, Jason Gilsdorf, Kurt C. Vercauteren, Scott E. Hygnstrom, W. David Walter, Justin Boner, Greg Clements

United States Department of Agriculture Wildlife Services: Staff Publications

We designed and developed a vehicle-mounted very high frequency–based telemetry system that integrated an on-board antenna, receiver, electronic compass, Global Positioning System, computer, and Geographic Information System. The system allows users to accurately and quickly obtain fixes, estimate and confirm locations of radiomarked animals, and immediately record data into an electronic spreadsheet or database. The total cost of materials to build the system was $7,349 (United States currency). Mean error angle of 2.63 ± 12.18 (SD; range =-33.7–42.2°) and mean location error distance of 128 ± 91.3 m (SD; range = 0–408 m) suggested precision and accuracy of our system …

An Integrated Vehicle-Mounted Telemetry System For Vhf Telemetry Applications, Jason Gilsdorf, Kurt C. Vercauteren, Scott E. Hygnstrom, W. David Walter, Justin Boner, Greg Clements

United States Department of Agriculture Wildlife Services: Staff Publications

We designed and developed a vehicle-mounted very high frequency–based telemetry system that integrated an on-board antenna, receiver, electronic compass, Global Positioning System, computer, and Geographic Information System. The system allows users to accurately and quickly obtain fixes, estimate and confirm locations of radio-marked animals, and immediately record data into an electronic spreadsheet or database. The total cost of materials to build the system was $7,349 (United States currency). Mean error angle of 2.63 ± 12.1° (SD; range =-33.7–42.2°) and mean location error distance of 128 ± 91.3 m (SD; range = 0–408 m) suggested precision and accuracy of our system …