Digital Commons Network^™

Capturing The Lost Phosphorus, Bruce E. Rittmann, Brooke K. Mayer, Paul Westerhoff, Mark Edwards

Civil and Environmental Engineering Faculty Research and Publications

Minable phosphorus (P) reserves are being depleted and will need to be replaced by recovering P that currently is lost from the agricultural system, causing water-quality problems. The largest two flows of lost P are in agricultural runoff and erosion (∼46% of mined P globally) and animal wastes (∼40%). These flows are quite distinct. Runoff has a very high volumetric flow rate, but a low P concentration; animal wastes have low flow rates, but a high P concentration together with a high concentration of organic material. Recovering the lost P in animal wastes is technically and economically more tractable, and …

G (Alpha) 12 Is Required For Thromboxane A2 To Regulate Tumor Cell Motility, Babar Malik

Theses

Thromboxane (TX) A₂ is a prostaglandin produced by metabolism of arachidonic acid through cyclooxygenases and thromboxane synthase. TXA₂ is biologically active, mainly through activating its cognate, seven transmembrane, G protein coupled receptor. It was previously reported that thromboxane A₂ receptor (TP) was expressed in prostate cancer, and further activation of this receptor elicited cell contraction and modulated tumor cell motility through regulating small GTPase RhoA[1]. This study aims to identify G alpha protein(s) involved in thromboxane A₂ signaling in tumor cell motility. Methods: The expression of G alpha proteins in the PC3MM cells was studied by …

Vegetation Structure, Light Availability, And Sediment Deposition Within Sinkhole Buffers Associated With Tracked And Wheeled Vehicle Training At Fort Knox, Kentucky, Klairoong Pattumma

Theses

Heavy wheeled and tracked vehicle training has been conducted on portions of the landscape of Fort Knox, Kentucky for approximately 60 years. Fort Knox is located on the Kentucky Karst Plain and sinkholes are dominant features of this area. Sinkholes and karst terrain present an atypical problem in combination with this unique land use, potentially impacting downstream and local terrestrial environment. A study of the training area sinkhole complex was conducted as a first step toward mitigating the impact of military activities and reduces potential problems of sedimentation and water quality degradation. A total of 20 sinkholes within Training Areas …

Vol 56 #1, Judy Zelenski

MPLA Newsletter

No abstract provided.

The Beta-2 Adrenergic Receptor Polymorphisms And Risk Of Breast Cancer Among Hispanic And Non-Hispanic White Women From The 4-Corners Breast Cancer Study : A Population-Based Case-Control Examination., Avonne Elish Connor

Electronic Theses and Dissertations

Polymorphisms in the adrenergic receptor beta-2 (ADRB2) gene have been studied in relation to risk of Type 2 diabetes and obesity, but few studies have investigated associations with breast cancer. The purpose of this research was to evaluate the primary hypothesis that ADRB2 variants (rs1042713-Arg16Gly and rs1042714-Gln27Glu) are associated with breast cancer risk in non-Hispanic white (NHW) and Hispanic (H) women using data from a population-based case-control study conducted in the southwestern United States: 'The 4-Corners Breast Cancer Study'. A total of 1,244 NHW and 606 H cases with incident primary breast cancer were ascertained and 1,330 NHW and 728 …

Contribution Of The Rv1985c Transcriptional Regulator To Mycobacterium Tuberculosis Intracellular Adaptation., Nicholas B. Wantland 1984-

Electronic Theses and Dissertations

Mycobacterium tuberculosis causes the often-fatal infectious disease Tuberculosis, and infects approximately one third of the world's population. Gaining a better understanding of how these bacteria regulate gene expression for intracellular survival will likely aid in developing ways to reduce disease. Studies of bacterial RNA expression in experimentally infected primary human macrophages indicated open reading frame Rv1985c, encoding a putative transcriptional regulator, may contribute to intracellular survival. Comparison of a strain constitutively expressing Rv1985c and the isogenic wildtype parent by array hybridization identified genes potentially regulated by Rv1985c. These included a group encoding factors likely relevant to cell wall remodeling, particularly …

New Records Of Ants (Hymenoptera: Formicidae) For Arkansas With A Synopsis Of Previous Records, Joe A. Macgown, Jovonn G. Hill, Michael Skvarla

Midsouth Entomologist

Ten new state records of Formicidae are reported for Arkansas including Camponotus obliquus Smith, Polyergus breviceps Emery, Proceratium crassicorne Emery, Pyramica metazytes Bolton, P. missouriensis (Smith), P. pulchella (Emery), P. talpa (Weber), Stenamma impar Forel, Temnothorax ambiguus (Emery), and T. texanus (Wheeler). A synopsis of previous records of ant species occurring in Arkansas is provided.

Bed Bugs (Cimex Lectularius L.) In Mississippi: Survey Of The Scope, Extent, And Control Of The Problem, J. Goddard

Midsouth Entomologist

Bed bugs are blood-sucking insects which had nearly disappeared in developed countries until fairly recently, when a dramatic increase and spread of the insects began in the 1980s. Since then, bed bugs increasingly have been reported inside U.S. hotel rooms, dormitories, and apartments. In this study, entomologists at the Mississippi Department of Health, as well as licensed pest control personnel throughout the state, were queried for information about the scope and extent of bed bug infestations throughout Mississippi for the time period from 1 September 2010 through 28 February 2011. In addition, pest management personnel were asked to provide information …

An Analysis Of Fringed Myotis (Myotis Thysanodes), With A Focus On Colorado Distribution, Maternity Roost Selection, And Preliminary Modeling Of Population Dynamics, Mark Andrew Hayes

Dissertations

The purpose of my research was to describe the distribution and roosting ecology of Myotis thysanodes in Colorado, and to initiate preliminary population dynamics modeling of the potential impacts of a changing climate on forest dwelling Myotis in the Southern Rocky Mountains. Seven hundred and twenty-nine Colorado capture and occurrence records of M. thysanodes were documented. I used 546 M. thysanodes records that included information about sex and reproductive status in an analysis of variance comparing elevational distribution among sex and reproductive classes. There were significant differences among reproductive classes, but not between sex classes. Sixteen actual or probable M. …

Experimental Infection Of Jamaican Fruit Bats (Artibeus Jamaicensis) With Tacaribe Virus, Ann C. Hawkinson

Dissertations

No abstract provided.

Evaluating The Role Of Perceived Access To Support And School Safety In Adolescent Exposure To Trauma: A Mixed Methods Study, Amanda H. Stoeckel

Dissertations

This mixed methods study evaluated lifetime trauma exposure, protective factors, and current psychological functioning among 78 adolescents from two public middle schools in rural and suburban communities. One hundred percent of adolescents reported experiencing at least one traumatic event at some point during their lives. After controlling for gender, ethnicity, socioeconomic status, and special education/general education placement, more trauma exposure was associated with more post-traumatic stress and depressive symptoms, more teacher-rated externalizing behaviors, and lower teacher-rated adaptive functioning. Perceived access to support and factors of school safety demonstrated protective effects in the relationship between trauma exposure and domains of psychological …

Reproduction Of Hierarchy? A Social Network Analysis Of The American Law Professoriate, Daniel Martin Katz, Josha R. Gubler, Jon Zelner, Michael J. Bommarito Ii

Journal of Legal Education

No abstract provided.

Effects Of High-Density, Short-Duration Planned Livestock Grazing On Soil Carbon Sequestration Potentials In A Coastal California Mixed Grassland, Kristina Michelle Wolf, Marc Horney, Brent Hallock, Robert T. Rutherford, Anthony T. O'Geen, Royce Larsen, William Plummer

Master's Theses

Planned grazing management in rangelands may improve carbon sequestration potential of soils by increasing plant biomass and the rate of nutrient cycling, which might mitigate global warming. The effects of high-intensity, short-duration planned grazing of sheep on several soil and ecosystem properties were investigated on a mixed grassland in San Luis Obispo, CA. The objectives of this study were to (a) identify soil properties related to soil C sequestration in rangelands; (b) determine if planned grazing improved soil carbon sequestration; (c) quantify changes in identified variables in grazed and rested plots; and (d) analyze any changes in plant species composition …

Repression Of Multiple Cyp2d Genes In Mouse Using A Single Sirna Construct, Omaima Elraghy

All Theses

The CYP2D subfamily is the second most important subfamily of hepatic drug metabolizing CYPs. In mouse, there are nine CYP2D subfamily members, while humans have only one highly polymorphic CYP2D member, CYP2D6. siRNA was used to repress the expression of multiple isoforms of mouse CYP2D in primary mouse hepatocytes with one siRNA construct. Successful knockdown of CYP function by RNAi may allow for further study of CYP2D function. Q-PCR demonstrated that male CD-1 mouse primary hepatocytes express Cyp2d10, Cyp2d11, Cyp2d22, and Cyp2d26; however the male specific and growth hormone-dependent, Cyp2d9, was not detected. Four different siRNAs were designed; Cyp2d-KD1 and …

This Library Life, Richard E. Voeltz

University of Nebraska-Lincoln Libraries: Faculty Publications

Forty-three years of employment at the University Libraries have encompassed remarkable changes in collection, organization, and distribution of information in the University community. Card catalogs and files of paper serial records have disappeared, and acquisition of library materials is now a highly automated process. The Libraries staff has grown and diversified as our delivery systems evolved. Branch libraries have disappeared as electronic search and delivery systems became more common and easy to use. Library instruction has become a routine part of service to the library’s users. Adaptive equipment has been acquired to accommodate handicapped users of the library’s collections and …

Ecology And Management Of The Woolly Whitefly (Hemiptera: Aleyrodidae), A New Invasive Citrus Pest In Ethiopia, Difabachew K. Belay, Abebe Zewdu, John E. Foster

Department of Entomology: Faculty Publications

Distribution and importance of woolly whitefly (Aleurothrixus floccosus) (Maskell) (Hemiptera: Aleyrodidae), was studied in Ethiopia with an evaluation of treatments against it. Results showed that the pest is distributed in most citrus-growing parts of the country equally infesting all types of citrus crops. Only one pupal parasitoid, Amitus sp., was recorded at Melkaoba. During 2006–2007, eight treatments gave better control of woolly whitefly compared with the control: endod (Phytolacca dodecandra L’Herit) berry extract, white oil 80%, neem oil, omo detergent soap, band application of gasoline, cyhalothrin (karate) 5% EC, selecron (profenofos) 500 EC, and rimon (novaluron) 10 EC. …

Comparative Analysis Of Students’ Information Seeking Behaviour In Adventist Universities: A Survey Of Babcock And Solusi Universities, Uloma Doris Onuoha, Adedamola Adesola Awoniyi

Library Philosophy and Practice (e-journal)

This study examined the information seeking behaviour of undergraduate students in two Seventh - day Adventist institutions. The population was made up of 4,741 students from three faculties registered during the first semester of 2009/2010 academic session. Stratified random sampling technique was used to select 474 students who took part in the study. A questionnaire adapted from Patitungkho and Deshpande (2005) was used for data collection. Data collected was analyzed using descriptive statistics and Chi-square. Findings reveal that most of the respondents from Babcock University sought information mainly to update knowledge, while majority of the respondents from Solusi University did …

Effects Of Mass Layer Dimension On A Finite Quartz Crystal Microbalance, Y. P. Kong, Jinxi Liu, Huijing He, Jiashi Yang

Department of Mechanical and Materials Engineering: Faculty Publications

In this paper, we investigate free thickness-shear and thickness-twist vibrations of a finite crystal resonator of AT-cut quartz carrying a thin mass layer at the central portion of its top surface operating as a quartz crystal microbalance. The equations of anisotropic elasticity are used with the omission of the small elastic constant c56. An analytical solution is obtained using Fourier series from which the resonant frequencies, mode shapes and vibration confinement by the mass layer are calculated and examined.

Glutaredoxin 2 Prevents H2o2-Induced Cell Apoptosis By Protecting Complex I Activity In The Mitochondria, Hongli Wu, Kuiyi Xing, Marjorie F. Lou

School of Veterinary and Biomedical Sciences: Faculty Publications

Glutaredoxin 2 (Grx2) belongs to the oxidoreductase family and is an isozyme of glutaredoxin 1 (Grx1) present in the mitochondria, however its function is not well understood. The purpose of this study is to evaluate the potential anti-apoptotic function of Grx2 by examining its ability to protect complex I in the mitochondrial electron transport system using human lens epithelial cells as a model. We found that cells treated with 200 μM hydrogen peroxide (H2O2) for 24 h exhibited decreased viability and became apoptotic with corresponding Bax up-regulation, Bcl-2 down-regulation, caspase 3 activation and mitochondrial cytochrome c leakage. Grx2 over-expression (OE) …

Testing Fuel Efficiency Of Tractors With Both Continuously Variable And Standard Geared Transmissions, Christopher N. Howard, Michael F. Kocher, Roger M. Hoy, Erin E. Blankenship

Department of Agricultural and Biological Systems Engineering: Presentations and White Papers

A John Deere 8295R IVT tractor with a continuously variable transmission (CVT) and a John Deere 8295R PowerShift (PST) tractor (Waterloo, Iowa) with a standard geared transmission (GT) were tested for fuel consumption at three different travel speeds with six different load levels applied per speed. The JD 8295R PST tractor was tested both at full throttle (FT) and shifted up two gears and throttled back (SUTB) to achieve the same travel speed as at full throttle conditions. For each travel speed with each transmission mode, fuel consumption was determined to be linearly related to drawbar power. Linear regression results …

Streambank Erosion And Instability Induced By Groundwater Seepage, Taber L. Midgley, Garey A. Fox, Glenn V. Wilson, Derek M. Heeren, Andrew Simon, Eddy J. Langendoen

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Excessive sediment is one of the most common surface water pollutants. It diminishes water quality and destroys aquatic habitat. Streambank erosion is known to be a major source of sediment in streams and rivers, contributing as much as 80% of the total sediment load in some watersheds. Little work has been done to study the effects of seepage on streambank erosion and failure. Prior research, primarily in the laboratory under well-defined and controlled conditions, has examined seepage as a mechanism for bank erosion, but more needs to be done to validate conclusions derived from the laboratory with field data. This …

Strategic Discussions For Nebraska - Opportunities For Nebraska: Energy, Climate And Sustainability, College Of Journalism And Mass Communications, Robert And Ardis James Family Foundation, Unl Institute Of Agriculture And Natural Resources

College of Journalism and Mass Communications: Faculty Publications

Innovation

Soil: Techniques and Production Methods and How They Conserve Resources • Mark Kuzila

Soil Productivity Vital for Economical Crop Production • Richard Ferguson

Leading Through Sustainable Management of Natural Resources • Charles Wortmann

Scientific Trait Development • P. Stephen Baenziger

Center for Plant Science Innovation: Developing Better Foods and Fuels • Edgar Cahoon

Crops Innovations Overview • Mark Lagrimini

Grapes and Wine: Adding Value to Nebraska’s Economy • Paul Read

UNL Plant Trait Research Saves Water, Grows More Food • James Specht

Feeding the World from Nebraska’s Research Technology • Larry Berger

Research Means Better Ag Productivity, Better Marketing …

Lung Functions In Poorly Controlled Type 1 Saudi Diabetic Children And Adolescents., Muslim M. Al-Saadi, Sultan A. Meo, Abdul M. Al-Drees, Sarar Mohamed, Shaffi A. Shaikh, Khalid Al-Rubeaan

Saudi Medical Journal

OBJECTIVES: To determine the lung function among Saudi type 1 diabetes mellitus (T1DM) children and adolescents. METHODS: This study was conducted in the Department of Pediatrics, Division of Pediatric Pulmonology and University Diabetes Centre, College of Medicine, King Saud University, Riyadh, Kingdom of Saudi Arabia from December 2008 to July 2010. A group of 52 (26 male and 26 female) volunteer T1DM children were recruited with an age range from 8-14 years (mean 12.05 ± 1.42 years), mean duration of disease of 5.25 ± 0.47 years, and mean glycosylated hemoglobin of 11.27 ± 0.31%. Spirometry was performed on an Electronic …

The Predictive Value Of Serum Mannan-Binding Lectin Levels For Diabetic Control And Renal Complications In Type 2 Diabetic Patients., Gamal Elawa, Ahmad M. Aoudallah, Ali E. Hasaneen, Amr M. El-Hammady

Saudi Medical Journal

OBJECTIVES: To evaluate the predictability of estimation of serum mannan-binding lectin (MBL) for the presence of infectious complications in type 2 diabetes mellitus (T2DM) and its relation to the extent of diabetes control. METHODS: A comparative cross-sectional study was conducted at the Departments of Clinical Pathology and Internal Medicine, Faculty of Medicine, Benha University, Benha, Egypt from October 2009 to December 2010. Sixty adult patients with T2DM were divided into 2 groups: Group B and Group C and Group A as the control group. All subjects evaluation of insulin sensitivity (Homeostasis Model Assessment of Insulin Resistance [HOMA-IR]), and blood samples …

Skin Color. Could It Be A New Fingerprint?, Omer A. Musa, Aamir A. Magzoub

Saudi Medical Journal

OBJECTIVES: To prove that the difference in human skin color can be used as a new fingerprint. METHODS: A cross-sectional descriptive study was conducted in the Faculty of Medicine, The National Ribat University, Khartoum, Sudan between January and June 2010. The study consists of 139 subjects, which includes 41 Sudanese identical twins (82 subjects), 50 subjects from the general population, and 7 Chinese. All subjects were free of skin lesions. Based on reflectance spectrophotometry, the skin color has been read for all subjects from the inner upper arm using the Medisun skin check. Visual judgment on color differences was carried …

Soft Tissue Facial Profile Of Adult Saudis. Lateral Cephalometric Analysis., Sahar F. Albarakati

Saudi Medical Journal

OBJECTIVES: To develop cephalometric measurements of soft tissue facial profile for a sample of adult Saudi males and females and compare it with European-Americans’ norms for any significant differences. METHODS: Sixty-one lateral cephalometric radiographs (31 males and 30 females; mean age 23 years) were selected from the archives of cephalometric radiograph files at College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia between June 2009 and June 2010. Thirteen cephalometric parameters were analyzed electronically using the Dolphin version 10 software according to Legan and Burstone analysis. Descriptive statistics and p-values were calculated for the group comparisons using SPSS …

Potential Adverse Reactions To Herbal Medicines In Patients Attending A Nephrology Clinic In Abu Dhabi, United Arab Emirates., Mahmood D. Al-Mendalawi

Saudi Medical Journal

No abstract provided.

Quantitative Analysis Of Glycation Patterns In Human Serum Albumin Using 16o/18o-Labeling And Maldi-Tof Ms, Omar S. Barnaby, Ronald Cerny, William Clarke, David S. Hage

David Hage Publications

Background—The glycation of human serum albumin (HSA) during diabetes can affect the ability of this protein to bind drugs and small solutes in blood. This study describes the use of ¹⁶O/¹⁸O-labeling and matrix-assisted laser desorption/ionization time-of-flight mass spectrometry to compare the levels of modification that occur throughout HSA under various glycation conditions in vitro. These quantitative studies build on a recent report that has identified the early and advanced glycation products that are formed on such samples of HSA.

Methods—Glycated HSA samples were prepared by incubating 42 g/l HSA with 0 to 15 mmol/l …

How Do Human Disturbance, Beach Characteristics, And Coastal Engineering Affect Snowy Plover (Charadrius Alexandrinus) Habitat Selection On The Florida Panhandle?, Alyson F. Webber

Boise State University Theses and Dissertations

Snowy plovers (Charadrius alexandrinus) are listed as threatened by the State of Florida, and have been a species of growing concern among wildlife management agencies. The population of snowy plovers breeding along the Florida Panhandle has a patchy distribution, and large stretches of private and public land go virtually unused by plovers. Further, there is a strong negative correlation between coastal engineering projects and snowy plover nest site use. The relationship between coastal engineering and snowy plover nesting distribution is unclear, however, because most engineering projects have occurred on developed beaches with high human use. My objectives were …

Dietary Patterns And Cognitive Decline In Aged Populations, Austin J. Bowles

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

In this paper, we discuss distinctive features of longitudinal studies, and illustrate two regression-based methods for the analysis of longitudinal data. A study of dietary patterns and cognitive decline (Cache County Memory Study) is used to motivate our discussion and analysis. Cognitive decline is a risk factor for Alzheimer’s disease, the sixth leading cause of all deaths among Americans. The study attempted to identify dietary patterns associated with reduced risk of age-related cognitive decline in elderly populations. Higher levels of adherence to the Dietary Approaches to Stop Hypertension (DASH) and/or Mediterranean diets were found to be associated with increased cognitive …