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2008

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Chapter 17. Nitrogen Management Modeling Techniques: Assessing Cropping Systems/Landscape Combinations, J. A. Delgado, M. J. Shaffer Jan 2008

Chapter 17. Nitrogen Management Modeling Techniques: Assessing Cropping Systems/Landscape Combinations, J. A. Delgado, M. J. Shaffer

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

Nitrogen use efficiency (NUE) in production agriculture is often low, which results in losses of excess N to groundwater as NO3-N, to gaseous emissions of NH3 and N2O, and to N losses in surface runoff and erosion. Best management practices (BMPs) are needed to improve efficiency levels while maintaining proper nutrition for crops. Field studies designed to investigate potential BMPs are both time consuming and costly, and cannot cover all scenarios. Application of simulation models with N cycling components in conjunction with associated field investigations offers methodology that can help identify BMPs that show promise …

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Genotype By Environment Interaction Due To Heat Stress, J. Bohmanova, University Of Georgia Misztal, S. Tsuruta, H. D. Norman, T. J. Lawlor Jan 2008

Genotype By Environment Interaction Due To Heat Stress, J. Bohmanova, University Of Georgia Misztal, S. Tsuruta, H. D. Norman, T. J. Lawlor

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

Heat stress was evaluated as a factor in differences between regional evaluations for milk yield in the United States. The national data set (NA) consisted of 56 million first-parity, test-day milk yields on 6 million Holsteins. The Northeastern subset (NE) included 12.5 million records on 1.3 million first-calved heifers from 8 states, and the Southeastern subset (SE) included 3.5 million records on 0.4 million heifers from 11 states. Climatic data were available from 202 public weather stations. Each herd was assigned to the nearest weather station. Average daily temperature-humidity index (meanTHI) 3 d before test date was used as an …

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Susceptibility Of Eggs And Adult Fecundity Of The Lesser Grain Borer, Rhyzopertha Dominica, Exposed To Methoprene, Y. Chanbang, F. H. Arthur, G. E. Wilde, J. E. Throne, Bh. Subramanyam Jan 2008

Susceptibility Of Eggs And Adult Fecundity Of The Lesser Grain Borer, Rhyzopertha Dominica, Exposed To Methoprene, Y. Chanbang, F. H. Arthur, G. E. Wilde, J. E. Throne, Bh. Subramanyam

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

A series of tests were conducted to determine the susceptibility of eggs and neonates of the lesser grain borer Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae = Bostrychidae), exposed to the insect growth regulator, methoprene, on filter paper and on rough rice. In the first test, the hatch rate of eggs exposed on filter paper treated with methoprene at the label rate of 0.003 mg [AI] /cm2 when used as a surface treatment in structures was 52.0 ± 7.3% compared to 93.0 ± 3.3% on untreated controls. In the second test, eggs were exposed to a dose-response series of 0.00003 to …

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Building A Community Modelling And Information Sharing Culture, A. Voinov, R. R. Hood, J. D. Daues, H. Assaf, R. Stewart Jan 2008

Building A Community Modelling And Information Sharing Culture, A. Voinov, R. R. Hood, J. D. Daues, H. Assaf, R. Stewart

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

Much of human creativity is geared towards moving energy and materials rather than information, even though information has become another crucial component of human welfare and livelihood. Information, unlike energy and materials, is not subject to conservation laws. By copying information from sources and distributing it to new destinations we do not lose information at the sources. This is what is known as non-rival goods in ecological economics (Daly and Farley, 2003). As with gravity, by using information we do not decrease the ability of others to use it. Nevertheless, exchange of information is restricted by patent law, as well …

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Comparison Of Field Measured Soil Absorption Field Loading Rates And Loading Rates Estimated From Soil Morphologic Properties, Kelli S. Hart, Brad D. Lee, Philip J. Schoeneberger, Donald P. Franzmeier, Phillip R. Owens, Douglas R. Smith Jan 2008

Comparison Of Field Measured Soil Absorption Field Loading Rates And Loading Rates Estimated From Soil Morphologic Properties, Kelli S. Hart, Brad D. Lee, Philip J. Schoeneberger, Donald P. Franzmeier, Phillip R. Owens, Douglas R. Smith

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

Concerns from local health departments regarding premature septic system failure (less than 1 year from installation) has led to an investigation of septic system soil absorption field design parameters in northeast Indiana. The objective of this study was to compare the loading rate based on field measured saturated hydraulic conductivity (LRm) across a toposequence to the estimated allowable loading rate (LRe) based on soil morphological properties. Saturated hydraulic conductivity measurements were determined by a compact constant-head permeameter at five landscape positions, at four depths (surface horizon, upper argillic horizon, transition zone between the argillic horizon and …

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Modeling Trench Sidewall And Bottom Flow In On-Site Wastewater Systems, S. D. Finch, D. E. Radcliffe, L. T. West Jan 2008

Modeling Trench Sidewall And Bottom Flow In On-Site Wastewater Systems, S. D. Finch, D. E. Radcliffe, L. T. West

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

Little is known about how much wastewater infiltrates the soil via the trench sidewall versus the trench bottom in on-site wastewater systems. Our objectives were to develop a method of simulating trench bottom and sidewall flow using a two-dimensional numerical computer model that would include the trench within the model space and determine how much sidewall flow would occur under steady-state conditions. We used HYDRUS-2D to simulate water flow in a two-dimensional cross section of a conventional gravel-filled trench and the surrounding drainfield.

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Numerical Modeling Of Bank Instability By Seepage Erosion Undercutting Of Layered Streambanks, M. L. Chu-Agor, G. V. Wilson, G. A. Fox Jan 2008

Numerical Modeling Of Bank Instability By Seepage Erosion Undercutting Of Layered Streambanks, M. L. Chu-Agor, G. V. Wilson, G. A. Fox

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

Undercutting, primarily considered due to fluvial mechanisms, has been reported to have a major impact on slope failure. Predicting bank collapse specifically due to seepage erosion undercutting by particle mobilization on layered streambanks has not been fully studied or modeled, even though its role in streambank erosion may be important. The limitation originates from the limited field measurements or laboratory experiments as well as the unavailability of discrete element models that can effectively simulate seepage particle mobilization, undercutting, and the corresponding mass wasting. The objective of this research was to demonstrate a procedure for incorporating seepage undercutting into bank stability …

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Genomic Analysis Of Fusarium Verticillioides, D. W. Brown, R. A.E. Butchko, R. H. Proctor Jan 2008

Genomic Analysis Of Fusarium Verticillioides, D. W. Brown, R. A.E. Butchko, R. H. Proctor

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

Fusarium verticillioides (teleomorph Gibberella moniliformis) can be either an endophyte of maize, causing no visible disease, or a pathogen-causing disease of ears, stalks, roots and seedlings. At any stage, this fungus can synthesize fumonisins, a family of mycotoxins structurally similar to the sphingolipid sphinganine. Ingestion of fumonisin-contaminated maize has been associated with a number of animal diseases, including cancer in rodents, and exposure has been correlated with human oesophageal cancer in some regions of the world, and some evidence suggests that fumonisins are a risk factor for neural tube defects. A primary goal of the authors’ laboratory is to …

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Soil Properties And Macro Cations Status Impacted By Long-Term Applied Poultry Litter, Zhongqi He, Irenus A. Tazisong, Zachary N. Senwo, Donglin Zhang Jan 2008

Soil Properties And Macro Cations Status Impacted By Long-Term Applied Poultry Litter, Zhongqi He, Irenus A. Tazisong, Zachary N. Senwo, Donglin Zhang

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

Most ethnic populations worldwide consume poultry products. Whereas poultry litter (PL) is a traditionally inexpensive and effective fertilizer to improve soil quality and agricultural productivity, overapplication to soils has raised concerns because excess nutrients in runoff could accelerate the eutrophication of fresh bodies of water. A long-term field experiment of land application of PL to soils used for pasture growth has been maintained for nearly two decades in the Sand Mountain region of north Alabama, USA. In this work, several soil parameters impacted by the long-term applied litter were characterized. The findings clearly support previous general observations that long-term applied …

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Procedural Common Law, Amy Coney Barrett Jan 2008

Procedural Common Law, Amy Coney Barrett

Journal Articles

Debates about the common lawmaking power of the federal courts focus exclusively on substantive common law. But federal common law is not limited to matters of substance; it reaches matters of procedure as well. Federal law includes a robust body of what might be called procedural common law - common law primarily concerned with the regulation of internal court processes rather than substantive rights and obligations. This body of law includes many doctrines that are fixtures in the law of procedure and federal courts. For example, abstention, forum non conveniens, remittitur, stare decisis, and preclusion can all fairly be characterized …

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Differential Effects Of Understory And Overstory Gaps On Tree Regeneration, Brian Beckage, Brian D. Kloeppel, J. Alan Yeakley, Sharon F. Taylor, David C. Coleman Jan 2008

Differential Effects Of Understory And Overstory Gaps On Tree Regeneration, Brian Beckage, Brian D. Kloeppel, J. Alan Yeakley, Sharon F. Taylor, David C. Coleman

Environmental Science and Management Faculty Publications and Presentations

Gaps in the forest canopy can increase the diversity of tree regeneration. Understory shrubs also compete with tree seedlings for limited resources and may depress tree recruitment. We compared effects of shrub removal and canopy windthrow gaps on seedling recruitment and understory resource levels. Shrub removal, with the canopy left intact, was associated with increased levels of understory light and soil moisture and coincided with increased species richness and diversity of tree regeneration compared to both control plots and canopy gaps. Canopy windthrow gaps, however, resulted in a more than 500 fold increase in soil nitrate concentrations, and seedling growth …

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The Effect Of Particles On Creep Rate And Microstructures Of Granular Ice, Min Song, Ian Baker, David M. Cole Jan 2008

The Effect Of Particles On Creep Rate And Microstructures Of Granular Ice, Min Song, Ian Baker, David M. Cole

Dartmouth Scholarship

The microstructures of particle-free granular freshwater ice and ice containing 1 wt.% of 50 ± 10 mm uniformly distributed particles were investigated before and after compressive creep to ∼10% strain with stresses of 1.45 MPa at −10°C and 0.4 MPa at −5°C. Creep rates of particle-containing ice were always higher than those of particle-free ice. For an initial stress of 1.45 MPa at −10°C, dynamic recrystallization occurred with new grains nucleating and growing along grain boundaries for both sets of specimens, and the ice with particles showed a higher nucleation rate. Under creep with an initial stress of 0.4 MPa …

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Review Of Approaching Emily Dickinson: Critical Currents And Crosscurrents Since1960, Paul Crumbley, Fred D. White Jan 2008

Review Of Approaching Emily Dickinson: Critical Currents And Crosscurrents Since1960, Paul Crumbley, Fred D. White

English Faculty Publications

No abstract provided.

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Design And Optimization Of Nanostructured Optical Filters, Jeremiah Brown Jan 2008

Design And Optimization Of Nanostructured Optical Filters, Jeremiah Brown

Electronic Theses and Dissertations

Optical filters encompass a vast array of devices and structures for a wide variety of applications. Generally speaking, an optical filter is some structure that applies a designed amplitude and phase transform to an incident signal. Different classes of filters have vastly divergent characteristics, and one of the challenges in the optical design process is identifying the ideal filter for a given application and optimizing it to obtain a specific response. In particular, it is highly advantageous to obtain a filter that can be seamlessly integrated into an overall device package without requiring exotic fabrication steps, extremely sensitive alignments, or …

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The Influence Of Medical Education On The Frequency And Type Of Medical Board Discipline Received By Licensed Florida Physicians, Richard Bonnell Iii Jan 2008

The Influence Of Medical Education On The Frequency And Type Of Medical Board Discipline Received By Licensed Florida Physicians, Richard Bonnell Iii

Electronic Theses and Dissertations

It has been estimated that in the United States, between 44,000 to 98,000 patients succumb to medical errors each year. Due to a shortage of graduates of domestic medical schools, many graduates of foreign medical schools are practicing in the United States. The medical education received in foreign medical schools may not be equivalent to the medical education received in domestic medical schools, which are schools located in the United States, Puerto Rico and Canada. Differences due to the educational backgrounds of the foreign-schooled physicians may contribute to an increase in medical board disciplining. Furthermore, graduates of medical schools where …

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Durability And Retro-Reflectivity Of Pavement Markings (Synthesis Study), Yi Jiang Jan 2008

Durability And Retro-Reflectivity Of Pavement Markings (Synthesis Study), Yi Jiang

JTRP Technical Reports

Waterborne paints are used to paint pavement markings (edgelines and centerlines) to provide guidance for motorists. The painted markings need to be repainted periodically as their retro-reflectivity deteriorates. The Indiana Department of Transportation (INDOT) repaints pavement markings at least annually. INDOT engineers would like to determine the feasibility of extending the time intervals of repainting pavement markings on at least some types of roadways. The purpose of this synthesis study is to accomplish the following: (1) to locate and assemble documented information on pavement marking durability; (2) to learn what criteria have been used in other states in measuring retro-reflectivity …

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Deck Replacement - Use Of Extra Coating Thickness Epoxy-Coated Bars, J. A. Ramirez, Rachel Elizabeth Henkhaus Jan 2008

Deck Replacement - Use Of Extra Coating Thickness Epoxy-Coated Bars, J. A. Ramirez, Rachel Elizabeth Henkhaus

JTRP Technical Reports

The results of this study were implemented in the form of design recommendations for bond of epoxy-coated bars with thicker coatings up to 18 mils. The scope of the work included evaluation of AASHTO LRFD (2004) and ACI 318 design recommendedations for the development and splice length of extra epoxy-coating thinkness reinforcing bars in normal-weight concrete bridge decks and a proposed monitoring plan for a generic concrete bridge deck in Indiana where epoxy-coated bars with thicker coatings might be emeployed. The use of the current provisions for development and splice length of epoxy-coated bars in tension in both the AASHTO …

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Acquisition And Analysis Of Earthwork Pay Quantity Verification Data, Sharvil Saurabh Shah, Makarand Hastak Jan 2008

Acquisition And Analysis Of Earthwork Pay Quantity Verification Data, Sharvil Saurabh Shah, Makarand Hastak

JTRP Technical Reports

This research identifies technologies and methods that can be used by INDOT in earthwork data collection and earthwork quantity calculation process on large construction projects that could result in timely completion of the projects with less labor and resultant cost. In order to achieve the above stated objective, several tasks were performed, i.e., literature review, data collection, data analysis, and recommendations. INDOT engineers were interviewed to determine their current state of practice. Also, all the state DOTs, professional companies in Indiana and vendors of earthwork data collection equipment and software products were contacted through questionnaire surveys and personal interviews. Two …

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Inverse Spectral Results On Even Dimensional Tori, Carolyn Gordon, Pierre Guerini, Thomas Kappeler, David Webb Jan 2008

Inverse Spectral Results On Even Dimensional Tori, Carolyn Gordon, Pierre Guerini, Thomas Kappeler, David Webb

Dartmouth Scholarship

Given a Hermitian line bundle L over a flat torus M, a connection ∇ on L, and a function Q on M, one associates a Schrödinger operator acting on sections of L; its spectrum is denoted Spec(Q;L,∇). Motivated by work of V. Guillemin in dimension two, we consider line bundles over tori of arbitrary even dimension with “translation invariant” connections ∇, and we address the extent to which the spectrum Spec(Q;L,∇) determines the potential Q. With a genericity condition, we show that if the connection is invariant under the isometry of M defined by the map x→-x, then the spectrum …

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Identification Of Yeast And Yeast-Like Fungal Species In The Upper Midwest Using Physiological And Dna Sequence Data, Scott Eric Danneman Jan 2008

Identification Of Yeast And Yeast-Like Fungal Species In The Upper Midwest Using Physiological And Dna Sequence Data, Scott Eric Danneman

All NMU Master's Theses

No abstract provided.

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The Prophesist, William Robert Davie Jan 2008

The Prophesist, William Robert Davie

All NMU Master's Theses

No abstract provided.

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Effects Of Problem Solving In The High School Health Occupations Classroom On Confidence And Understanding, Ronda Manninen Jan 2008

Effects Of Problem Solving In The High School Health Occupations Classroom On Confidence And Understanding, Ronda Manninen

All NMU Master's Theses

No abstract provided.

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Student And Teacher Perceptions About Using Accommodations In The General Science Classroom, Rhonda Lee Mckimpson Jan 2008

Student And Teacher Perceptions About Using Accommodations In The General Science Classroom, Rhonda Lee Mckimpson

All NMU Master's Theses

No abstract provided.

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The Storyteller, Susan Renee Page Jan 2008

The Storyteller, Susan Renee Page

All NMU Master's Theses

No abstract provided.

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A Case Study On Attribution Retraining And Self-Efficacy In A High School Counseling Setting, Heather Laurel Pickett Jan 2008

A Case Study On Attribution Retraining And Self-Efficacy In A High School Counseling Setting, Heather Laurel Pickett

All NMU Master's Theses

No abstract provided.

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Small-Ruminant Lentivirus Enhances PrpSc Accumulation In Cultured Sheep Microglial Cells, James B. Stanton, Donald P. Knowles, Katherine I. O'Rourke, Lynn M. Herrmann-Hoesing, Bruce A. Mathison, Timothy V. Baszler Jan 2008

Small-Ruminant Lentivirus Enhances PrpSc Accumulation In Cultured Sheep Microglial Cells, James B. Stanton, Donald P. Knowles, Katherine I. O'Rourke, Lynn M. Herrmann-Hoesing, Bruce A. Mathison, Timothy V. Baszler

Zoonotics and Wildlife Disease: Publications

Sheep scrapie is the prototypical transmissible spongiform encephalopathy (prion disease), which has a fundamental pathogenesis involving conversion of normal cellular prion protein (PrPC [C superscript stands for cellular]) to disease-associated prion protein (PrPSc [Sc superscript stands for sheep scrapie]). Sheep microglial cell cultures, derived from a prnp 136VV/171QQ near-term fetal brain, were developed to study sheep scrapie in the natural host and to investigate potential cofactors in the prion conversion process. Two culture systems, a primary cell culture and a cell line transformed with the large T antigen of simian virus 40, were developed, and both were identified …

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The Role Of Migration In Community Dynamics In Beaver Lake Basin, Daniel J. Armichardy Jan 2008

The Role Of Migration In Community Dynamics In Beaver Lake Basin, Daniel J. Armichardy

All NMU Master's Theses

No abstract provided.

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Of Necessity, Mary-Kay Wildenhain Belant Jan 2008

Of Necessity, Mary-Kay Wildenhain Belant

All NMU Master's Theses

No abstract provided.

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The History Of Student Journalism At Northern Michigan University, 1919-2002, Kristy Basolo Jan 2008

The History Of Student Journalism At Northern Michigan University, 1919-2002, Kristy Basolo

All NMU Master's Theses

No abstract provided.

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Critical Pedagogy And Moral Development In The (Literature) Classroom, Alyssia Rowan Ashkevron Jan 2008

Critical Pedagogy And Moral Development In The (Literature) Classroom, Alyssia Rowan Ashkevron

All NMU Master's Theses

No abstract provided.

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