Digital Commons Network^™

A Comparison Of Lifestyle Intervention Sessions And Clinical Screening As Motivators In The South Dakota Wisewoman Program, Jacy Clarke

Walden Dissertations and Doctoral Studies

WISEWOMAN (WW) is a comprehensive program for medically underserved women in South Dakota (SD), aged 30 to 64, which aims to reduce morbidity and mortality from chronic diseases. Screening services include blood total cholesterol, blood pressure and blood glucose, and body mass index (BMI). Lifestyle intervention (LSI) sessions are also offered to address physical activity and nutrition. The purpose of this retrospective longitudinal study was to quantitatively examine whether the combination of LSI's and clinical screenings or clinical screenings alone lead to improvements in blood pressure, blood glucose, total cholesterol, and/or BMI at rescreening 10 to14 months from initial screening. …

What Is A “Real” Argument?, G. C. Goddu

Philosophy Faculty Publications

Numerous informal logicians and argumentation theorists restrict their theorizing to what they call “real” arguments. But is there a clear distinction to be made between “real” and “non-real” arguments? Here I explore four possible accounts of the alleged distinction and argue that none can serve the theoretical uses to which the distinction is most often put.

Governmentality, Biopower, And The Debate Over Genetic Enhancement, Ladelle Mcwhorter

Philosophy Faculty Publications

Although Foucault adamantly refused to make moral pronouncements or dictate moral principles or political programs to his readers, his work offers a number of tools and concepts that can help us develop our own ethical views and practices. One of these tools is genealogical analysis, and one of these concepts is “biopower.” Specifically, this essay seeks to demonstrate that Foucault’s concept of biopower and his genealogical method are valuable as we consider moral questions raised by genetic enhancement technologies. First, it examines contemporary debate over the development, marketing, and application of such technologies, suggesting that what passes for ethical deliberation …

Understanding Generalist Function, F. Matthew Mihelic

Faculty Publications

A major concern in dealing with multi-agent complex adaptive systems is the understanding of how such systems build order in the midst of an otherwise chaotic universe. The ordering principles of such systems that are found at the biological level can be applied to better understanding human organizations, and can also be used to develop or modify highly complex intelligent agent software systems for greater efficacy. This paper describes the theoretical mechanism of how huge multi-agent complex adaptive systems overcome the exponential increases in entropy that would otherwise cause system collapse, through the use of agents that function to maintain …

Is The Family A Federal Question?, Meredith Johnson Harbach

Law Faculty Publications

There has long been conflict over the relationship between the states and the federal system vis-i-vis the family. The traditional account of domestic relations describes family law as the exclusive domain of the states, and federal courts have credited this account in the "domestic relations exception." Although scholars have analyzed and critiqued the exception's applicability to diversity jurisdiction, the intersection of federal question jurisdiction and this exception remains largely unexplored. This Article describes and critiques, on both instrumental and deeper normative terms, federal courts' willingness to expand the "domestic relations exception" to include federal question cases. The Article proceeds in …

Ending Jim Crow Life Insurance Rates, Mary L. Heen

Law Faculty Publications

This Article tells the story of the rise and fall of explicit race-based pricing practices as American life insurance companies responded to changes in the social, economic, and legal status of former slaves. The role of law in that story, from the Civil War to the beginning of this century, illustrates the complex interaction between civil rights reform and private commercial markets. Despite early laws prohibiting race-based life insurance rates, racial discrimination persisted in various forms for over a century due to the strength of the underlying racial ideologies, the rhetorical power of actuarial language, and the structure and regulation …

The Folly Of Early Filing In Patent Law, Christopher A. Cotropia

Law Faculty Publications

This Article questions the conventional wisdom that the patent system should continue to encourage "early filing" of patent applications-filing at the beginning stages of technological development. The current thinking regarding early filing fails to account for the lack of technical and market information available about the invention at the early stages of development. A "file early, file often" mentality is instilled in inventors, exacerbating such systemic patent problems as too many patent applications, too many patents, underdevelopment of patented technology, increased assertion of patent rights, and fuzzy patent boundaries, to name a few. The Article suggests that in response patent …

Genotypic Variability In Mineral Composition Of Switchgrass, H. M. El-Nashaar, G. Banowetz, S.M. Griffith, M. D. Casler, Kenneth P. Vogel

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

Switchgrass (Panicum virgatum L.) is a warm season perennial grass with great potential as an energy crop in the USA. It is widely adapted to many regions of the country, produces large amounts of biomass, serves as a useful forage grass, and provides ecosystem services that benefit soil and water quality and wildlife. Biological and thermochemical technologies are being developed to convert herbaceous biomass, including switchgrass, to energy. The objective of this research was to determine the effect of genotype and production environment on the concentration of minerals that affect the suitability of switchgrass for thermochemical conversion and to …

Comparison Of Passive And Active Canopy Sensors For The Estimation Of Vine Biomass Production, Stamatis Stamatiadis, Dimitris Taskos, Eleftheria Tsadila, Calliopi Christofides, Christos Tsadilas, James S. Schepers

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

Recent advances in optical designs and electronic circuits have allowed the transition from passive to active proximal sensors. Instead of relying on the reflectance of natural sunlight, the active sensors measure the reflectance of modulated light from the crop and so they can operate under all lighting conditions. This study compared the potential of active and passive canopy sensors for predicting biomass production in 25–32 randomly selected positions of a Merlot vineyard. Both sensors provided estimates of the normalized difference vegetation index (NDVI) from a nadir view of the canopy at veraison that were good predictors of pruning weight. Although …

Comparative Metabolism Of Benzo(A)Pyrene By Ovarian Microsomes Of Various Species, Deacqunita L. Harris, Ashley C. Huderson, Mohammad S. Niaz, J. Joe Ford, Anthony E. Archibong, Aramandla Ramesh

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

Knowledge of the ability of the female reproductive system to metabolize polycyclic aromatic hydrocarbons (PAHs) is critical to the diagnosis and management of female infertility and for risk assessment purposes. The PAHs are a family of widespread pollutants that are released into the environment from automobile exhausts, cigarette smoke, burning of refuse, industrial emissions, and hazardous waste sites. In exposed animals, PAHs become activated to reactive metabolites that interfere with target organ function and as a consequence cause toxicity. The extent of susceptibility to PAH exposure may depend on the ability of animals to metabolize these chemicals. The present study …

Protocol For Indicator Scoring In The Soil Management Assessment Framework (Smaf), Brian J. Wienhold, D. L. Karlen, S.S. Andrews, D. E. Stott

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

Assessment tools are needed to evaluate agronomic management effects on critical soil functions such as carbon sequestration, nutrient cycling and water partitioning. These tools need to be flexible in terms of selection of soil functions to be assessed and indicators to be measured to ensure that assessments are appropriate for the management goals. The soil management assessment framework (SMAF) is being developed to meet this need. The SMAF uses soil physical, chemical and biological indicator data to assess management effects on soil function using a three-step process for (1) indicator selection, (2) indicator interpretation and (3) integration into an index. …

Morphology Of The Turkey Vagina With And Without An Egg Mass In The Uterus, M. R. Bakst, V. Akuffo

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

In this study we examined the gross anatomy of the uterus and vagina in turkeys in egg production. With no uterine egg mass, removal of the tunica serosa that enclosed the uterus revealed deep periodic in-folding of the muscularis transversely circumscribing the sac-like segment. When the connective tissue embracing the neutral buffered formalin fixed vagina was completely teased free, the exposed tubular segment was shaped as a counter-clockwise spiral or as a series of angular, random bends. The uterovaginal junction was flush with the uterine mucosa or projected slightly into the uterine lumen. With a uterine egg mass, the deep …

Advances In Artificial Neural Networks – Methodological Development And Application, Yanbo Huang

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

© 2009 by the authors

Open access

This document is a U.S. government work and is not subject to copyright in the United States.

doi:10.3390/algor2030973

Development Of A Spray System For An Unmanned Aerial Vehicle Platform, Yanbo Huang, Wesley C. Hoffmann, Yubin Lan, Wenfu Wu, Bradley K. Fritz

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

Application of crop production and protection materials is a crucial component in the high productivity of American agriculture. Agricultural chemical application is frequently needed at specific times and locations for accurate site‐specific management of crop pests. Piloted agricultural aircraft are typically used to treat large, unobstructed, continuous acreage crops and are not as efficient when working over small or obstructed plots. An Unmanned Aerial Vehicle (UAV), which can be remotely controlled or fly autonomously based on pre‐programmed flight plans, may be used to make timely and efficient applications over these small area plots. This research developed a low volume spray …

Regulating Conflicts Of Interest In Research: The Paper Tiger Needs Real Teeth, Jesse A. Goldner J.D.

All Faculty Scholarship

This article describes the current state of the regulation of financial conflicts of interest in research in the United States. It notes the implications of the changing academic and private research environment and reviews recent empirical research on (1) the perceived implications of such conflicts on clinician and researcher behavior, and (2) the effect of disclosure of such conflicts to potential research participants. The article also details a number of widely publicized research “scandals” involving conflicts of interest and the effects these may have on both public support for research as well as on the quality of care that ultimately …

Isolation Of Mycobacterium Avium Subspecies Paratuberculosis Reactive Cd4 T Cells From Intestinal Biopsies Of Crohn’S Disease Patients, Ingrid Olsen, Stig Tollefsen, Claus Aagaard, Liv J. Reitan, J. P. Bannantine, Peter Andersen, Ludvig M. Sollid, Knut E.A. Lundin

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

Background: Crohn’s disease (CD) is a chronic granulomatous inflammation of the intestine. The etiology is unknown, but an excessive immune response to bacteria in genetically susceptible individuals is probably involved. The response is characterized by a strong Th1/Th17 response, but the relative importance of the various bacteria is not known.

Methodology/Principal Findings: In an attempt to address this issue, we made T-cell lines from intestinal biopsies of patients with CD (n = 11), ulcerative colitis (UC) (n = 13) and controls (n = 10). The T-cell lines were tested for responses to various bacteria. A majority of the CD patients …

Evaluation Of Β-Glucosidase Activity As A Soil Quality Indicator For The Soil Management Assessment Framework, D. E. Stott, S. S. Andrews, M. A. Liebig, Brian J. Wienhold, D. L. Karlen

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

The Soil Management Assessment Framework (SMAF) was developed to assess conservation effects on soil, and uses multiple soil quality indicator measurements to compare soil functioning. Our objective was to develop a SMAF compatible scoring equation for soil β-glucosidase (BG) activity using published data sets representing different soils and management. The resulting equation was an S-shaped curve: y = a/[1 + bexp(−cx)], where x is the measured BG activity (mg p-nitrophenol [PNP] released kg⁻¹ soil h⁻¹), a and b are constants, and c is a factor modified by soil classification, texture, and climate. …

Soil Moisture And Metolachlor Volatilization Observations Over Three Years, Timothy J. Gish, John H. Prueger, William P. Kustas, C. S. T. Daughtry, Lynn G. Mckee, Andy Russ, Jerry L. Hatfield

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

A 3-yr study was conducted to focus on the impact of surface soil water content on metolachlor (2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl) acetamide) volatilization from a field with different surface soil water regimes created by subsurface water flow paths. Metolachlor vapor fluxes were measured at two locations within the field where local meteorological and soil conditions were relatively constant, except for surface soil water content, which differed significantly. Surface soil water content at the two sites differed in response to the presence of subsurface flow pathways. Detailed soil moisture observations over the duration of the study showed that for the first 2 yr (2004 …

Ars Poetica, Jim Wyatt

Yalobusha Review

Winner of the 2009 Barry Hannah Prize for Fiction. Judge: Padgett Powell

Upic: Perl Scripts To Determine The Number Of Ssr Markers To Run, R. S. Arias, Linda L. Ballard, Brian E. Scheffler

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

We introduce here the concept of Unique Pattern Informative Combinations (UPIC), a decision tool for the cost-effective design of DNA fingerprinting/genotyping experiments using simple-sequence/tandem repeat (SSR/STR) markers. After the first screening of SSR-markers tested on a subset of DNA samples, the user can apply UPIC to find marker combinations that maximize the genetic information obtained by a minimum or desirable number of markers. This allows a cost-effective planning of future experiments. We have developed Perl scripts to calculate all possible subset combinations of SSR markers, and determine based on unique patterns or alleles, which combinations can discriminate among all DNA …

Opal Pannell, Oral History Index, Part One Of Two, Opal Pannell, James Conrad, Converging Literacies Center (Clic), Shannon Carter

All Oral Histories

This is part one of a two part index of an oral history interview with Opal Pannell. The exact date of the interview is not known, but it was conducted between 2009-2010. The interviewers are Shannon Carter and James Conrad.

This interview focuses on Opal Pannell's memories of growing up in Neylandville, Texas and her experiences as a student and cafeteria worker at East Texas State University, now Texas A&M University-Commerce.

Opal Pannell grew up in Neylandville, Texas, an all-Black community near Greenville, Texas. Her parents Artie and Vivian Brigham were farmers. Pannell attended high school at St. Paul High …

Volume 14 (2009): Complete Issue, Journal Editors

Yalobusha Review

No abstract provided.

Generation Of Novel Pikromycin Antibiotic Products Through Mutasynthesis, Shuchi Gupta, Venkatraman Lakshmanan, Beom Seok Kim, Robert Fecik, Kevin A. Reynolds

Chemistry Faculty Publications and Presentations

Mutasynthesis in pikromycin PKS: The amenability of pikromycin polyketide synthase to mutational biosynthesis has been demonstrated. A natural triketide and its analogues, activated as N-acetyl-cysteamine thioesters, were synthesized and fed to a pikAI-deleted strain; this led to the production of new antibiotics. A vinyl analogue was found to have better antibacterial activity than pikromycin.

Micrornas: Key Modulators Of Posttranscriptional Gene Expression., Steven P. O'Hara, Justin L. Mott, Patrick L. Splinter, Gregory J. Gores, Nicholas F. Larusso

Journal Articles: Biochemistry & Molecular Biology

No abstract provided.

Elevated Expression Of L-Selectin Ligand In Lymph Node-Derived Human Prostate Cancer Cells Correlates With Increased Tumorigenicity., Prakash Radhakrishnan, Ming-Fong Lin, Pi-Wan Cheng

Journal Articles: Biochemistry & Molecular Biology

Human prostate cancer LNCaP cells including C-33 and C-81 cells were originally derived from the lymph nodes of a patient with metastatic prostate cancer. These two cells were employed for characterization of L-selectin ligand and in vitro tumorigenicity, because they mimic the clinical conditions of early and late-stage human prostate cancer. C-81 cells exhibit higher in vitro migratory and invasive properties as compared with C-33 cells. We find that the L-selectin ligand and mucin glycan-associated MECA-79 epitope were elevated in C-81 cells. An increase of these glycotopes positively correlates with elevated tumorigenicity and expression of key glycosyl- and sulfotransferase genes. …

The Bush Administration's Decision To Invade Iraq: Did They Fall Victim To Groupthink?, Joel Nantais

Electronic Theses and Dissertations

The purpose of this study was to investigate whether the George W. Bush administration became victims of groupthink when they made the policy decision to invade Iraq in 2003. Groupthink is a policy-making model which was first put forward by Irving Janis which attempts to explain how experienced and elite policy-makers can make decisions which lead to disastrous outcomes due to conditions which cause defective decision-making. Research was conducted through a qualitative, within case study which was made possible through the inherent process tracing method of the groupthink model. Mainly secondary sources which detailed the historical case of the decision …

Mathematical Modeling Of Growth Of Salmonella In Raw Ground Beef Under Isothermal Conditions From 10 To 45° C, Vijay K. Juneja, Martin Valenzuela Melendres, Lihan Huang, Jeyamkondan Subbiah, Harshavardhan Thippareddi

Department of Agricultural and Biological Systems Engineering: Faculty Publications

The objective of this study was to develop primary and secondary models to describe the growth of Salmonella in raw ground beef. Primary and secondary models can be integrated into a dynamic model that can predict the microbial growth under varying environmental conditions. Growth data of Salmonella at nine different isothermal conditions — 10,15, 20, 25, 28, 32, 35, 42, and 45 °C were first fitted into primary models, namely the logistic, modified Gompertz, Baranyi, and Huang models. Performances of these models were evaluated by using various statistical criteria, namely mean square error (MSE), pseudo-R², −2 log likelihood, …

Effect Of Timing Of A Deficit-Irrigation Allocation On Corn Evapotranspiration, Yield, Water Use Efficiency And Dry Mass, J. O. Payero, David D. Tarkalson, Suat Irmak, Don Davison, James L. Petersen

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Water regulations have decreased irrigation water supplies in Nebraska and some other areas of the USA Great Plains. When available water is not enough to meet crop water requirements during the entire growing cycle, it becomes critical to know the proper irrigation timing that would maximize yields and profits. This study evaluated the effect of timing of a deficit-irrigation allocation (150 mm) on crop evapotranspiration (ETc), yield, water use efficiency (WUE = yield/ETc), irrigation water use efficiency (IWUE = yield/irrigation), and dry mass (DM) of corn (Zea mays L.) irrigated with subsurface drip irrigation in the semiarid climate of …

Special Issue On Evapotranspiration Measurement And Modeling, Samuel Ortega-Farias, Suat Irmak, R. H. Cuenca

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Water availability for irrigation throughout the world has been reduced in recent years due to a combination of frequent droughts and competition for water resources among agricultural, industrial, and urban users. In addition, some major agricultural areas face moderate to significant reductions of rainfall, or changes in timing of stream flow due to changes in timing of snowmelt, as a result of global climate change. Under such conditions, sophisticated irrigation water management will be required to optimize water use efficiency and maintain sufficient levels of crop productivity and quality. A key factor to achieve these targets is the estimation of …

Regional Co2 And Latent Heat Surface Fluxes In The Southern Great Plains: Measurements, Modeling, And Scaling, W. J. Riley, Sebastien C. Biraud, Margaret S. Torn, Marc L. Fischer, David P. Billesbach, Joe A. Berry

Department of Agricultural and Biological Systems Engineering: Faculty Publications

[1] Characterizing net ecosystem exchanges (NEE) of CO2 and sensible and latent heat fluxes in heterogeneous landscapes is difficult, yet critical given expected changes in climate and land use. We report here a measurement and modeling study designed to improve our understanding of surface to atmosphere gas exchanges under very heterogeneous land cover in the mostly agricultural U.S. Southern Great Plains (SGP). We combined three years of site-level, eddy covariance measurements in several of the dominant land cover types with regional-scale climate data from the distributed Mesonet stations and Next Generation Weather Radar precipitation measurements to calibrate a land surface …