Digital Commons Network^™

Charting The Late Cretaceous Seas: Mosasaur Richness And Morphological Diversification, Marcus R. Ross

Faculty Publications and Presentations

Abundant, readily identifiable, and biostratigraphically resolved specimens make mosasaurs ideal candidates to test fluxes in generic richness and morphological trends among marine vertebrates during the late Cretaceous. More than 1800 globally distributed mosasaur specimens are allocated to fifteen substage-level stratigraphically correlated assemblages. These data are quantitatively analyzed to illuminate trends within the group. Following their first appearance in the Cenomanian, mosasaurs experienced a significant radiation in the Coniacian and Santonian. Richness levels continued increasing into the Maastrichtian while mosasaurs incrementally exploited new predatory niches recognized via accumulation of novel dental morphologies. Their extinction at the end of the Cretaceous occurred …

Targeting Tuberculars: Social Stigma And Public Health Campaigns, Filomeno V. Aguilar Jr

History Department Faculty Publications

In the fight against tuberculosis one major obstacle is the social stigma associated with the disease. Stigma, which is both relational and contextual, marks the body of the tubercular as a site of danger. This essay reflects on the social history of tuberculosis and proposes that stigma’s contingent history in the Philippines can be traced to public health campaigns carried out during the twentieth century, which sought to segregate and isolate the tubercular to limit contagion but could not provide an effective cure. The stigmatization of tuberculosis persists at present, and public health campaigns may need to address stigma directly.

Multi-Objective Network Reliability Optimization Using Evolutionary Algorithms, Franciso Oswaldo Aguirre

Open Access Theses & Dissertations

This work presents a new multiple objective evolutionary algorithm to solve three well known network reliability allocation problems considering different conflicting objectives to be optimized simultaneously. The new algorithm is applied in the design of a telecommunication network that is formed for several stations or nodes interconnected by telecommunication links or paths. The problem presented in this work involves finding which links to activate in order to obtain connectivity in the nodes. The number of nodes that need to be connected depends of the case that is being evaluated. The three network reliability problems considered are: all-terminal, k-terminal, and two-terminal. …

A Compartmentalized Approach To The Assembly Of Physical Maps, Serdar Bozdag, Timothy J. Close, Stefano Lonardi

Mathematics, Statistics and Computer Science Faculty Research and Publications

Background: Physical maps have been historically one of the cornerstones of genome sequencing and map-based cloning strategies. They also support marker assisted breeding and EST mapping. The problem of building a high quality physical map is computationally challenging due to unavoidable noise in the input fingerprint data. Results: We propose a novel compartmentalized method for the assembly of high quality physical maps from fingerprinted clones. The knowledge of genetic markers enables us to group clones into clusters so that clones in the same cluster are more likely to overlap. For each cluster of clones, a local physical map is first …

Reactions Of Connective Tissue To Self-Etching/Priming Dentin Bonding Systems: Oxidative Stress, Tumor Necrosis Factor Α Expression, And Tissue Reactions, Yahya Orçun Zorba, Mehmet Yildiz, Abdulkadir Yildirim, Nesrin Gursan, Ertugrul Ercan

Journal of Dental Sciences

Background/Purpose Few data have been published concerning tissue and systemic responses to resinous dental materials. The aim of this study was to compare and evaluate the biocompatibility of four kinds of dental self-etching/priming adhesives by measuring tissue responses, local and systemic tumor necrosis factor (TNF) a expression, and oxidative stress parameters. Materials and methods Eighty rats were equally divided into 10 groups. Four dental adhesives (Clearfil SE Bond, iBond, Clearfil Protect Bond, and Adper Prompt L-Pop) were applied to connective tissue of the rats. In the control group, rats were operated on with no material being applied. Biocompatibilities of the …

New Legal Rights In The Legal System Of The United States Of America, Roberto Rosas, Bill Piatt

Faculty Articles

What new rights does the American legal system offer at the start of the 21st century? This article takes a snapshot of some of the most controversial topics in American society today and the juridical response to these topics by individual states, the United States Congress, and the United States Supreme Court. Although there are numerous legal topics that deserve mention and analysis, this article is limited to the discussion of 7 new rights created by state and federal laws. The new legal rights in the United States legal system discussed in this article include the following: 1) The right …

Challenging Monohumanism: An Argument For Changing The Way We Think About Intercountry Adoption, Shani King

Michigan Journal of International Law

In Part I, this Article provides a brief history of ICA. In Part II, using a post-colonialist theoretical framework, the work of legal scholars from the past twenty years on the subject of ICA is explored. This analysis exposes the centrality of MonoHumanism to our discourse on ICA. In Part III, this Article illustrates how our discourse regarding intercountry adoption contributes to our violating the rights of children (and families) as they are defined in the CRC. Lastly, in Part IV, this Article explores how this argument fits into the current and somewhat polarized debate on ICA and how the …

Development Of Novel Microwave Cooking Model For Not-Ready-To Eat Foods, Sohan Birla, Krishnamoorthy Pitchai, Jeyamkondan Subbiah, David D. Jones

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

Recently safety of microwave cooked food has come under scrutiny because of recent outbreak and recalls associated with some of these not-ready-to-eat (NRTE) frozen foods. Heating uniformity of these foods is paramount in rendering the foods safe for consumption. Degree of uneven microwave heating is influenced by both microwave oven and characteristics of food load which decides the electric field distribution within the food load. Given the complexity of parameters, a computer model is always desirable to optimize heating uniformity by proper selection of food shape, proportions, plating, packaging selection and more. Earlier many researchers have made one or more …

Pilates As A New Form Of Exercise To Lower Childhood Obesity And Depression, Alicia Olson

Whittier Scholars Program

Childhood obesity is is quickly becoming a worldwide epidemic. Some factors contributing to this epidemic include more time spent in passive activities such as watching television and playing video games, eating more high fat/ high sugar content foods, and spending very little if any time being physically active. Children need more exercise options that are less intimidating than running or other strenuous exercises. This project introduces Pilates as a new form of exercise to help decrease childhood obesity and childhood depression. Various literature was looked at to determine how childhood obesity occurs and what can be done to prevent it. …

The Public Trust Doctrine: What A Tall Tale They Tell, Hope M. Babcock

Georgetown Law Faculty Publications and Other Works

Despite continuing hostility towards the public trust doctrine because of its potential to defeat private property rights and the will of elected representatives, the doctrine refuses to die. It continues to assure public access to and protection of certain natural resources of communal value; in fact, the doctrine's geographic reach and the activities it protects have expanded beyond its original conception. It is this doctrinal accretion that has drawn the attention of Professor James Huffman, who in a recent article criticizes the "ambitions" of public trust scholars who see in "an expansive public trust doctrine . . . a powerful …

What Factors Can An Agency Consider In Making A Decision?, Richard J. Pierce Jr

GW Law Faculty Publications & Other Works

In State Farm, the Supreme Court said that an agency decision is arbitrary and capricious if the agency did not consider adequately a relevant factor or did consider an impermissible factor. The Court did not indicate how courts should distinguish among three categories of potential decision making factors: mandatory, discretionary but permissible, and impermissible. Until 2007, the case law in both the D.C. Circuit and the Supreme Court addressed these questions in sensible ways. In particular, both courts held consistently that congressional silence with respect to a logically relevant factor rendered the factor a permissible factor that an agency could …

Process Simulation Of Dilute Acid Pretreatment Of Coastal Bermudagrass For Bioethanol Production, Arthur Redding, Deepak R. Keshwani, Jay J. Cheng

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

Coastal bermudagrass is a promising lignocellulosic feedstock for bioethanol production. It is well suited for the Southeastern United States where it is currently grown for hay production and nutrient management in animal farming operations. Prior experiments have generated sugar and sugar degradation data from the dilute acid pretreatment and enzymatic hydrolysis of bermudagrass over a range of pretreatment conditions. Experimentally, the yield of total glucose and xylose was maximized at 93 % of the theoretical value for the pretreatment conditions 140 °C and 1.2 % sulfuric acid (w/w) for a residence time of 30 minutes. To explore further potential optimum …

Otterbein Towers Winter 2009, Otterbein Towers

Towers Magazine

Otterbein & Sierra Leone; Otterbein Welcomes Back One of Its Own: Dan Knechtges ’94; Features: Otterbein and Sierra Leone; Community Service in the Curriculum; Temperance Row; Regulars: College News: Otterbein Announces Next President; DeVore Hall to Honor 25 Years of Presidential Service; Football Team Makes Playoffs for First Time; Women’s Soccer has Stellar Year; Going to the Inauguration; Spotlight on Faculty; Martin Luther King Jr. Convocation; ClassNotes; Milestones; Investing in Otterbein; Alumni Notes, etc.

Sperms And Estates: An Unadulterated Functionally Based Approach To Parent-Child Property Succession, Lee-Ford Tritt

UF Law Faculty Publications

The Article argues that the sanguinary nexus test, the dominant standard for determining whether an individual has a right to inherit property when another dies, has become an increasingly frustrating, and arguably arcane, legal tool in light of the diversity of family relationships extant in modern American life. The sanguinary nexus test determines child status based upon ties of “blood.” Considering the evolving notions of family structures and advances in reproductive technologies involving cloning, surrogacy and egg/sperm donation, serious questions arise about whether the existing sanguinary nexus test can produce results consistent with the fundamental principle of testamentary freedom underlying …

Biodiversity Maintenance Mechanisms Differ Between Native And Novel Exotic-Dominated Communities, Brian J. Wilsey, Terri B. Teaschner, Pedram P. Daneshgar, Forest I. Isbell, H. Wayne Polley

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

In many systems, native communities are being replaced by novel exotic-dominated ones. We experimentally compared species diversity decline between nine-species grassland communities under field conditions to test whether diversity maintenance mechanisms differed between communities containing all exotic or all native species using a pool of 40 species. Aboveground biomass was greater in exotic than native plots, and this difference was larger in mixtures than in monocultures. Species diversity declined more in exotic than native communities and declines were explained by different mechanisms. In exotic communities, overyielding species had high biomass in monoculture and diversity declined linearly as this selection effect …

Primary Productivity And Water Balance Of Grassland Vegetation On Three Soils In A Continuous Co2 Gradient: Initial Results From The Lysimeter Co2 Gradient Experiment, Philip A. Fay, Alexia M. Kelley, Andrew C. Procter, Dafeng Hui, Virgina L. Jin, Robert B. Jackson, Hyrum B. Johnson, H. Wayne Polley

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

Field studies of atmospheric CO₂ effects on ecosystems usually include few levels of CO₂ and a single soil type, making it difficult to ascertain the shape of responses to increasing CO₂ or to generalize across soil types. The Lysimeter CO₂ Gradient (LYCOG) chambers were constructed to maintain a linear gradient of atmospheric CO₂ (~250 to 500 µ 1^-1) on grassland vegetation established on intact soil monoliths from three soil series. The chambers maintained a linear daytime CO₂ gradient from 263 µ 1^-1 at the subambient end of the gradient to 502 …

Leaf Isoprene Emission Rate As A Function Of Atmospheric Co2 Concentration, Michael J. Wilkinson, Russell K. Monson, Nicole Trahan, Stanfield Lee, Erin Brown, Robert B. Jackson, H. Wayne Polley, Philip A. Fay, Ray Fall

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

There is considerable interest in modeling isoprene emissions from terrestrial vegetation, because these emissions exert a principal control over the oxidative capacity of the troposphere.

Phylogenetic Classification Of Escherichia Coli O157:H7 Strains Of Human And Bovine Origin Using A Novel Set Of Nucleotide Polymorphisms, Michael L. Clawson, James Keen, Timothy Smith, Lisa Durso, Tara G. Mcdaneld, Robert Mandrell, Margaret Davis, James Bono

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

Background: Cattle are a reservoir of Shiga toxin-producing Escherichia coli O157:H7 (STEC O157), and are known to harbor subtypes not typically found in clinically ill humans. Consequently, nucleotide polymorphisms previously discovered via strains originating from human outbreaks may be restricted in their ability to distinguish STEC O157 genetic subtypes present in cattle. The objectives of this study were firstly to identify nucleotide polymorphisms in a diverse sampling of human and bovine STEC O157 strains, secondly to classify strains of either bovine or human origin by polymorphism-derived genotypes, and finally to compare the genotype diversity with pulsed-field gel electrophoresis (PFGE), a …

Sorption Of Phosphorus From Swine, Dairy, And Poultry Manures, Carl H. Bolster, Karamat R. Sistani

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

In most phosphorus (P) sorption studies, P is added as an inorganic salt to a predefined background solution such as calcium chloride (CaCl₂) or potassium chloride (KCl); however, in many regions, the application of P to agricultural fields is in the form of animal manure. The purpose of this study, therefore, was to compare the sorption behavior of dissolved reactive P (DRP) in monopotassium phosphate (KH₂PO₄)–amended CaCl₂ and KCl solutions with sorption behavior of DRP in three different animal manure extracts. Phosphorus single-point isotherms (PSI) were conducted on eight soils with the following …

Enzymatic Quantification Of Phytate In Animal Manure, Zhongqi He, Heidi W. Waldrip, C. Wayne Honeycutt, M. Susan Erich, Zachary N. Senwo

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

Phytate (inositol hexaphosphate) has been identified as a major organic phosphorus (P) form in soil, animal manure, and other environmental samples. Although a number of methods are available for quantitative isolation and determination of phytate, they are time-consuming and not amenable to routine analysis. We developed a simple, rapid method for enzymatic determination of phytate in animal manure. Animal manure was extracted by H₂O, 1M hydrochloric acid (HCl), 0.1M sodium acetate (NaOAc, pH5.0) with or without 0.05M ethylenediaminetetraacetate (EDTA), and 0.25M or 0.5M sodium hydroxide (NaOH)–0.05M EDTA. Extracts were diluted (1/10–1/150) and adjusted to pH5.0 in sodium acetate …

Social Experiences Of Adolescents With High Functioning Autism (Hfa) And/Or Asperger Syndrome (As) - Their Perceptions And Their Views Of Their Caregivers: An Exploratory Study, Patricia Anne Kunz

Dissertations

This study used the Grounded Theory methodology to investigate, through an exploratory manner, the social experiences of adolescents with High Functioning Autism (HFA) and/or Asperger's Syndrome (AS) as shared by the adolescents themselves, and the views of their parent/caregivers regarding this experience. In addition the adolescents and parents shared their thoughts on having and managing a diagnosis of HFA/AS and the current adaptive behaviors of the adolescents.

Seven adolescents and their respective parent/caregivers participated in video-taped paired interviews. The themes emergent from the interviews regarding the diagnosis of HFA/AS for the parents were: rejection, feeling blamed, emotional toll and management …

Container And Installation Time Effects On Soil Moisture, Temperature, And Inorganic Nitrogen Retention For An In Situ Nitrogen Mineralization Method, Brian J. Wienhold, Gary E. Varvel, Wallace W. Wilhelm

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

Mineralization contributes significantly to agronomic nitrogen (N) budgets and is difficult to accurately predict. Models for predicting Nmineralization contributions are needed, and development of these models will require field-based data. In situ mineralization methods are intended to quantify N mineralization under ambient environmental conditions. This study was conducted to compare soil moisture and temperature in intact soil cores contained in cylinders to those in adjacent bulk soil, compare the effect of two resin-bag techniques on water content of soil within cylinders, and assess the effect of installation duration on inorganic N retention by resins. The study was conducted at a …

Natural Enemies Of The Coccinellidae: Parasites, Pathogens, And Parasitoids, E. W. Riddick, T. E. Cottrell, K. A. Kidd

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

We review aspects of the life histories of representative enemies of coccinellids (both entomophagous and phytophagous species) and expose both potential and real effects that they have on life parameters of their hosts. Lady beetles are attacked by a variety of natural enemies (bacteria, fungi, mites, nematodes, protozoa, wasps, flies). Few of these enemies have the ability to alter significantly the population dynamics of their hosts. This review should encourage further research to help define the role of natural enemies in the population dynamics of coccinellids. Ultimately, the conservation of beneficial lady beetles and the management of nuisance and pestiferous …

Coccinellidae As Predators Of Mites: Stethorini In Biological Control, David J. Biddinger, Donald D. Weber, Larry A. Hull

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

The Stethorini are unique among the Coccinellidae in specializing on mites (principally Tetranychidae) as prey. Consisting of 90 species in two genera, Stethorus and Parasthethorus, the tribe is practically cosmopolitan. The Stethorini are found in a diverse range of habitats, including many agricultural systems such as pome and stone fruits, brambles, tree nuts, citrus, avocadoes, bananas, papaya, palms, tea, cassava, maize, strawberries, vegetables, and cotton, as well as ornamental plantings, grasslands, forests, and heathlands. Tetranychid mite outbreaks became common in many agricultural systems only after World War II, when widespread use of broad-spectrum insecticides increased. Stethorini were initially appreciated …

Visualization Of Biomass Solubilization And Cellulose Regeneration During Ionic Liquid Pretreatment Of Switchgrass, Seema Singh, Blake A. Simmons, Kenneth P. Vogel

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

Auto-fluorescent mapping of plant cell walls was used to visualize cellulose and lignin in pristine switchgrass (Panicum virgatum) stems to determine the mechanisms of biomass dissolution during ionic liquid pretreatment. The addition of ground switchgrass to the ionic liquid 1-n-ethyl-3-methylimidazolium acetate resulted in the disruption and solubilization of the plant cell wall at mild temperatures. Swelling of the plant cell wall, attributed to disruption of inter- and intramolecular hydrogen bonding between cellulose fibrils and lignin, followed by complete dissolution of biomass, was observed without using imaging techniques that require staining, embedding, and processing of biomass. Subsequent …

Should The Mirid, Eccritotarsus Catarinensis (Heteroptera: Miridae), Be Considered For Release Against Water Hyacinth In The United States Of America?, Julie A. Coetzee, Marcus J. Byrne, Martin P. Hill, Ted D. Center

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

Between one and seven biological control agents have been released against water hyacinth (Eichhornia crassipes (Mart.) Solms) in at least 30 countries, with varied success. A mirid, Eccritotarsus catarinensis (Carvalho) (Heteroptera: Miridae), the most recent agent released, is damaging to the plant on the African continent.

Insecticidal Effect Of Diatomaceous Earth Against Three Species Of Stored-Product Psocids On Maize, Rice, And Wheat, Christos G. Athanassiou, Frank H. Arthur, George P. Opit, James E. Throne

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

We evaluated the efficacy of three diatomaceous earth (DE) formulations, Dryacide, Protect-It, and Insecto, against three Psocoptera species, Liposcelis entomophila (Enderlein) (Liposcelididae), Lepinotus reticulatus Enderlein (Trogiidae), and Liposcelis decolor (Pearman), in the laboratory. Bioassays were conducted in three grain commodities, wheat, rice and maize, at 30°C and 75% RH, and the DEs were applied at the recommended dose rates of 1,000, 400, and 500 ppm for Dryacide, Protect-It, and Insecto, respectively. Differences in adult mortality were found among grains and DEs for L. entomophila and L. reticulatus, but these trends were not consistent for all combinations tested. Type of …

From Parasite Genomes To One Healthy World: Are We Having Fun Yet?, Dante Zarlenga, Louis C. Gasbarre

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

In 1990, the Human Genome Sequencing Project was established. This laid the ground work for an explosion of sequence data that has since followed. As a result of this effort, the first complete genome of an animal, Caenorhabditis elegans was published in 1998. The sequence of Drosophila melanogaster was made available in March, 2000 and in the following year, working drafts of the human genome were generated with the completed sequence (92%) being released in 2003. Recent advancements and next-generation technologies have made sequencing common place and have infiltrated every aspect of biological research, including parasitology. To date, sequencing of …

Antioxidant Activities Of Purple Rice Bran Extract And Its Effect On The Quality Of Low Nacl, Phosphate-Free Patties Made From Channel Catfish (Ictalurus Punctatus) Belly Flap Meat, Byungrok Min, Ming H. Chen, Bartholomew W. Green

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

Purple rice bran contains high amounts of natural antioxidants that consist of water- and lipid-soluble compounds. Hexane-insoluble and hexane-soluble fractions were separated from 100% methanolic extract from purple rice bran (RBE-HI and RBE-HS, respectively). Total anthocyanin, tannin, flavonoid, and phenolics contents were determined in those fractions, and their antioxidant capacities were evaluated by measuring 1,1-diphenyl-2- picrylhydrazyl (DPPH) radical scavenging capability, oxygen radical absorbance capacity (ORAC), and iron chelating capability (ICC). RBE-HI and RBE-HSwere also added to restructured patties made fromminced channel catfish (Ictalurus punctatus) belly flap meat. Lipid oxidation, color, and/or textural properties were determined for raw and …

Enhanced Water Quality Protection In Florida: An Analysis Of The Regulatory And Practical Significance Of An Outstanding Florida Water Designation, Thomas T. Ankersen, Richard Hamann, Rachel King, Megan Wegerif, John November

UF Law Faculty Publications

The Outstanding Florida Water (OFW) designation is the highest protection offered to a body of water by the state of Florida and is available only to those waters whose “natural attributes” warrant it. An OFW designation provides that water body with an antidegradation standard for certain activities affecting its water quality. Ordinarily, waters in Florida must meet the criteria established by rule for their respective class of water (based on the Florida water body classification system), regardless of existing water quality. Once a water body is designated as an OFW, however, a baseline water quality standard is set based on …