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Conservation Genetics And Population Status Of The Flame Chub, Hemitremia Flammea, Kathlina Frances Alford

Masters Theses and Doctoral Dissertations

The southeastern United States has a rich geologic history that contributed to the evolution of an extremely diverse aquatic fauna throughout the region. The Flame Chub, Hemitremia flammea, is a brightly colored, spring endemic minnow species native to the Cumberland, Tennessee, and Coosa river drainages. In this study, the cytochrome-b gene region was analyzed for 230 individuals from 29 populations across the three drainages. Results from maximum parsimony and Bayesian analyses recovered shallow divergence between the 31 haplotypes. AMOVA analyses indicated that most gene tic variation distributed within and between populations, not between drainages. Based on these results, this species …

Faculty Perception And Use Of Learning-Centered Strategies To Assess Student Performance, Matthew Lynn Johnson

Masters Theses and Doctoral Dissertations

In this study, the researcher explored collegiate faculty use and perception of learning- centered strategies to assess student performance on various learning tasks. Through this study, the researcher identified the assessment strategies that faculty participants most frequently used, as well as the strategies that they perceived to be most effective. In addition to an analysis of the most frequently used assessment strategies for the entire sample, the researcher also investigated differences in strategies used by faculty members in specific discipline sub-groups: Arts and Humanities, Natural and Health Sciences, and Social and Behavioral Sciences. Participants taking part in this study were …

Mesoaciditoga Lauensis Gen. Nov., Sp. Nov., A Moderate Thermoacidophilic Thermotogales From A Deep-Sea Hydrothermal Vent, Anna-Louise Reysenbach, Yitai Liu, Annie R. Lindgren, Issac D. Wagner, Christine Demko Sislak, Anchelique Mets, Stefan Schouten

Biology Faculty Publications and Presentations

A novel moderately thermophilic, heterotrophic bacterium was isolated from a deep-sea hydrothermal vent deposit from the Mariner field along the Eastern Lau Spreading Center, Southwestern Pacific. Cells were short motile rods (about 0.4 μm-0.8 μm) that occurred singly or in pairs and were surrounded by a sheath-like membrane or ‘toga’. The cells grew between 45 and 65°C (optimum 57-60°C), pH 4.1-6.0 (optimum pH 5.5-5.7) and optimally at 3% (w/v) NaCl. The isolate grew on a range of carbon and proteinaceous substrates and reduced sulfur. The G + C content of the DNA was about 45 mol%. Phylogenetic analysis of the …

Alfred Owre: Revisiting The Thought Of A Distinguished, Though Controversial, Early Twentieth-Century Dental Educator, David A. Nash

Oral Health Science Faculty Publications

Many in dental education are unfamiliar with the professional life and thought of Dr. Alfred Owre, a distinguished though controversial dental educator in the early twentieth century. Owre served as dean of dentistry at both the University of Minnesota, 1905-27, and Columbia University, 1927-33. He was also a member of the Carnegie Foundation's commission that developed the report Dental Education in the United States and Canada, written by Dr. William J. Gies. Owre was a controversial leader due to his creative and original ideas that challenged dental education and the profession. His assessment and critique of the problems of dental …

Characterization Of The 2012 Highly Pathogenic Avian Influenza H7n3 Virus Isolated From Poultry In An Outbreak In Mexico: Pathobiology And Vaccine Protection, Darrell R. Kapczynski, Mary Pantin-Jackwood, Sofia G. Guzman, Yadira Ricardez, Erica Spackman, Kateri Bertran, David L. Suarez, David E. Swayne

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

In June of 2012, an H7N3 highly pathogenic avian influenza (HPAI) virus was identified as the cause of a severe disease outbreak in commercial laying chicken farms in Mexico. The purpose of this study was to characterize the Mexican 2012 H7N3 HPAI virus (A/chicken/Jalisco/CPA1/2012) and determine the protection against the virus conferred by different H7 inactivated vaccines in chickens. Both adult and young chickens intranasally inoculated with the virus became infected and died at between 2 and 4 days postinoculation (p.i.). High virus titers and viral replication in many tissues were demonstrated at 2 days p.i. in infected birds. The …

Interface Properties Of Bio-Based Composites Of Polylactic Acid And Bamboo Fibers, Quentin Viel

Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research

Environmental impact plays an ever-increasing role in the industrial production of materials, and because of its importance, the scientific community is examining a wide variety of new materials that are more environmentally friendly. Bioplastics are characterized by the fact that the usual petrochemical resins (polypropylene, polyethylene etc.) are replaced by bio-sourced resins and the reinforcements (glass fibers, carbon fibers etc.) are replaced by natural fibers (bamboo, flax, cotton, etc.). Polylactic acid (PLA) is a biodegradable polymer that is increasingly used in biomedical applications and in packaging. Additionally, bamboo is a promising source of fibers that could be used as reinforcement. …

Discovering Divergence: A Framework For Finding Unexpected Behavior Using Directed Exploration, Heath G. Roehr

School of Computing: Dissertations, Theses, and Student Research

Systems that are written to achieve the same high level specifications can vary in subtle ways. Depending on a programmer's objective, using one variant of a program or algorithm over another may be beneficial, and this objective may change over time. However we do not have sufficient techniques to compare two different system variants side-by-side to find specific behavioral differences, particularly in the absence of source code. Assuming two system implementations take the same inputs and produce the same outputs or exhibit the same behavior under most conditions, we want to find input instances where the behavior diverges for a …

Multiple Motherhoods: An Examination Of Mother Status On Life Satisfaction And Psychological Distress, Kayla M. Pritchard

Department of Sociology: Dissertations, Theses, and Student Research

Motherhood represents a status that has substantial cultural meaning. The ways in which people think about motherhood, however, tend to be limited to biology. Among partnered or married women, this study seeks to compare variations in motherhood by recognizing women as biological mothers, stepmothers, and double mothers. Double mothers are a previously unexamined category of motherhood that refers to women who are both biological and stepmothers. Using the National Survey of Fertility Barriers, I assess potential differences in life satisfaction and psychological distress across these three mother statuses and two types of non-mothers (voluntary childfree and involuntary childless women). Factors …

Effects Of Aromatherapy On Test Anxiety And Performance In College Students, Jocelyn Marie Dunnigan

Theses and Dissertations

Test anxiety is a complex, multidimensional construct composed of cognitive, affective, and behavioral components that have been shown to negatively affect test performance. Furthermore, test anxiety is a pervasive problem in modern society largely related to the evaluative nature of educational programs, therefore meriting study of its nature, causes, effects, and treatment. Aromatherapy is the skilled use of essential oils for physical and emotional well-being and has been used to increase relaxation, attention and memory. This study examined the effects of peppermint and rosemary aromatherapy essential oils and a control scent (apple) on self-reported test anxiety, emotionality and worry subscales …

Isolation And Structural Elucidation Of Phytochemicals Present In Red Maple Flowers, Holly Tran

Senior Honors Projects

Natural medicines and the use of botanical extracts in the prevention and treatment of ailments is globally gaining interest (Mazzio and Soliman, 2009). Detrimental side effects may be reduced using natural therapies (Desai et al., 2008). Worldwide, there are about 120 different maple species. Of those, thirteen are native to eastern North America (Maple Field Guide, 2002). Maple syrup is a natural sweetener derived from collected and concentrated maple tree sap. It takes about 40 liters of sap to make one liter of syrup. Maple plant parts have been used by Native Americans for medicinal purposes. The University of Rhode …

Differential Dna Methylation In Umbilical Cord Blood Of Infants Exposed To Low Levels Of Arsenic In Utero, Devin C. Koestler, Michele Avissar-Whiting, E. Andres Houseman, Margaret R. Karagas, Carmen J. Marsit

Dartmouth Scholarship

Background: There is increasing epidemiologic evidence that arsenic exposure in utero, even at low levels found throughout much of the world, is associated with adverse reproductive outcomes and may contribute to long-term health effects. Animal models, in vitro studies, and human cancer data suggest that arsenic may induce epigenetic alterations, specifically by altering patterns of DNA methylation.

Objectives: In this study we aimed to identify differences in DNA methylation in cord blood samples of infants with in utero, low-level arsenic exposure.

Methods: DNA methylation of cord-blood derived DNA from 134 infants involved in a prospective birth cohort in …

Pcr Amplification And Dna Sequence Analysis Of The 45s Ribosomal Dna Cassette Of Chrysaora Quinquecirrha, Caitlin Michelle Burns

Theses, Dissertations and Culminating Projects

The recent overpopulation of jellyfish occurring in the Barnegat Bay of New Jersey has been of growing concern. One prolific species, Chrysaora quinquecirrha, has been the subject of genetic research to determine the relatedness amongst populations and therefore determine its spread. In this study, a partial nucleotide sequence of the 45S ribosomal DNA cassette from C. quinquecirrha genomic DNA of Barnegat Bay was identified and compared to other cnidarian species. Approximately 44.8% of the cassette was identified, 3465 bp total. A partial 18S rDNA sequence was generated of 1772 bp (96% total). Complete ITS1, 5.8S rDNA, and ITS2 sequences were …

The Effect Of Temperature On The Reproductive Success Of Male Waterbugs (Belostoma Flumineum), Michael Philip Dmytriw

Theses, Dissertations and Culminating Projects

Sexual selection theory predicts that the sex that shows a greater parental investment in the offspring should be limiting to the reproductive success of the opposite sex. Males of the giant waterbug Belostoma flumineum exhibit greater parental investment than females by providing all of the parental care for the eggs, which are firmly attached to their dorsal surface. While male backspace availability can be limiting to female reproductive success, it has previously been found to be more limiting during the spring than during the fall, due to newly emerged males being able to breed more quickly than newly emerged females. …

W.B. Yeats's Construction Of India, Ashim Dutta

Theses, Dissertations and Culminating Projects

William Butler Yeats’s literary career consists of varied passions and interests. He had a life-long interest in the occult mysticism of the East and the West, and Indian philosophy and spiritual tradition cover a considerable space in Yeats’s mysticism. From 1880s to the end of his life, Yeats cherished a profound interest in the spiritual India which was periodically reinforced by his encounters with three Indian personalities: Mohini Mohun Chatteijee in 1886, Rabindranath Tagore in 1912, and Shri Purohit Swami in 1931. Each of these three Indians left a profound impression on his mind and influenced him substantially. Yeats also …

Solubilization Of Sirolimus In Aqueous Solution Through Complexation With Metal Ions, Ralph A. Falen

Theses, Dissertations and Culminating Projects

Sirolimus is one of the most successful immunosuppressant drugs available but it has an extremely low solubility in water that dramatically limits its oral bioavailability to approximately 20%. This study is aimed to increase solubility of Sirolimus in aqueousolutions through complexation with a metal ion. Using computer modeling and UV absorbance spectroscopy, it was demonstrated that 1) Sirolimus interacts with AJ³⁺,Cu²⁺, Fe³⁺ , Mn²⁺, Zn²⁺ ; 2) this interaction decreases UV light absorbance of Sirolimus measured at ^=280 nm; 3) a previously reported value of solubility of Sirolimus in water is underestimated; …

The Orphan Drug Act: How The Fda Unlawfully Usurped Market Exclusivity, Sumin Kim

Northwestern Journal of Technology and Intellectual Property

The Board of KV Pharmaceutical bet the company on the success of Makena®, a pre-term birth drug. However, in the midst of a public outcry over the excessive pricing of Makena®, the FDA declared that it would not honor the market exclusivity that KV Pharmaceutical had obtained for Makena® under the Orphan Drug Act. As a result, KV Pharmaceutical filed for Chapter 11 bankruptcy. This Note analyzes the situation under the lens of the Takings Clause of the Fifth Amendment. Specifically, I argue that market exclusivity for Makena® was private property and thus, the FDA unlawfully usurped KV Pharmaceutical’s private …

Oncolog, Volume 58, Number 08, August 2013, Bryan Tutt, Sarah Bronson

OncoLog MD Anderson's Report to Physicians (All issues) Archives

• Specialized Care Improves Lives of patients With Head and Neck Lymphedema: A unique program is producing dramatic results for patients with head and neck lymphedema, a side effect of cancer treatment that can interfere with patient's ability to speak, swallow, or breath
• Targeted Cancer Therapies May Help Overcome Resistance to Radiation Therapy: Some cancer cells are resilient enough to withstand and recover from the damage to their DNA caused by radiation therapy. But recent studies have shown that adding molecularly targeted agents to radiation therapy can prevent the repair of this radiation-induced damage and therapy improve the treatment response of …

Identification And Confirmation Of Quantitative Trait Loci For Seed Protein And Oil Content Of Soybean, Jiao Wang

Graduate Theses and Dissertations

Protein and oil are the major chemical constituents of soybean seed that affect the quality of soyfood, feed, and oil products. Therefore, soybean cultivars with high protein and/or high oil are desirable for the soyfood and feed markets. Use of molecular-marker-assisted selection will facilitate the breeding process of such cultivar development. The objectives of this research were to identify new quantitative trait loci (QTL) and confirm previously reported QTL associated with seed protein and oil content by using simple sequence repeat (SSR) markers and single nucleotide polymorphism (SNP) markers. Two recombinant inbred line (RIL) populations consisting of 242 individuals from …

The Geographic And Social Distance In Finance, Liping Ma

Graduate Theses and Dissertations

Our research interests lie in studying the economic behavior, choices, and actions of individuals given their geographical and Social proximity to others, and analyze the consequences of such decisions to the financial health and survival of households, firms, and the macro economy. Network analysis and spatial econometrics take account of information spill-overs and constraints of behaviors as consequence of the geographical and Social distance between and among individuals. In this research, we apply those techniques to analyze aspects of corporate governance and explanations for the recent housing crisis.

The literature on principle-agent problems has devoted most of its attention to …

Design, Development, And Characterization Of Novel Antimicrobial Peptides For Pharmaceutical Applications, Yazan H. Akkam

Graduate Theses and Dissertations

Candida species are the fourth leading cause of nosocomial infection. The increased incidence of drug-resistant Candida species has emphasized the need for new antifungal drugs. Histatin 5 is a naturally occurring human salivary antifungal peptide and the first line of defense against infections of the oral cavity. This research has focused on understanding the activity of histatin 5, and subsequently designing novel peptides that may serve as models for the further development of therapeutics to treat fungal infection.

This objective has been achieved in three steps: studying the structural requirement of histatin 5 involved in antifungal activity, the identification of …

Symposium – What Real-World Criminal Cases Tell Us About Genetics Evidence, Deborah W. Denno

UC Law Journal

Rapid advances in genetic and neuroscience research over the past few decades have fueled a focus on how such information is viewed and used by the criminal justice system. Researchers at the University of Utah recently conducted an unprecedented experimental study indicating that psychopathic criminal offenders are more likely to receive lighter sentences if a judge was aware of genetic and neurobiological explanations for the offender’s psychopathy. This Article contends that the study’s conclusions derive from substantial flaws in the study’s design and methodology. The hypothetical case upon which the study is based captures just one narrow and unrepresentative component …

Symposium – Seeking Genomic Knowledge: The Case For Clinical Restraint, Wylie Burke, Susan Brown Trinidad, Ellen Wright Clayton

UC Law Journal

Genome sequencing technology provides new and promising tests for clinical practice, including whole genome sequencing, which measures an individual’s complete DNA sequence, and whole exome sequencing, which measures the DNA for all genes coding for proteins. These technologies make it possible to test for multiple genes in a single test, which increases the efficiency of genetic testing. However, they can also produce large amounts of information that cannot be interpreted or is of limited clinical utility. This additional information could be distracting for patients and clinicians, and contribute to unnecessary healthcare costs. The potential for genomic sequencing to improve care …

Anticipating Stream Ecosystem Responses To Climate Change: Toward Predictions That Incorporate Effects Via Land–Water Linkages, J. M. Davis, C. V. Baxter, E. J. Rosi-Marshall, J. L. Pierce, B. T. Crosby

Geosciences Faculty Publications and Presentations

Climate change (CC) is projected to increase the frequency and severity of natural disturbances (wildfires, insect outbreaks, and debris flows) and shift distributions of terrestrial ecosystems on a global basis. Although such terrestrial changes may affect stream ecosystems, they have not been incorporated into predictions of stream responses to CC. Here, we introduce a conceptual framework to evaluate to what extent responses of streams to CC will be driven by not only changes in thermal and hydrologic regimes, but also alterations of terrestrial processes. We focused on forested water-sheds of western North America because this region is projected to experience …

Nebline, August 2013

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: 8 Tips for Better-Tasting Fruits & Vegetables

Farm Views

Urban Agriculture

Food & Fitness

Home & Family Living

Horticulture

Environmental Focus

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

2013 Lancaster County Super Fair Schedule & Map Special Pullout Section

Expert–Novice Differences In Mental Models Of Viruses, Vaccines, And The Causes Of Infectious Disease, Benjamin D. Jee, David H. Uttal, Amy N. Spiegel, Judy Diamond

World of Viruses

Humans are exposed to viruses everywhere they live, play, and work. Yet people’s beliefs about viruses may be confused or inaccurate, potentially impairing their understanding of scientific information. This study used semi-structured interviews to examine people’s beliefs about viruses, vaccines, and the causes of infectious disease. We compared people at different levels of science expertise: middle school students, teachers, and professional virologists. The virologists described more entities involved in microbiological processes, how these entities behaved, and why. Quantitative and qualitative analyses revealed distinctions in the cognitive organization of several concepts, including infection and vaccination. For example, some students and teachers …

Regulation Of Access To Genetic Resources And Associated Traditional Knowledge: Approaches And Challenges In The South Pacific, Yuri Suzuki

Pacific Studies

Regulatory frameworks regarding access to genetic resources and associated traditional knowledge (TK) with access and fair and equitable benefit sharing (ABS) are of international significance because of their social, economic, and cultural implications for local communities in general and the South Pacific countries in particular. This has led to development of an international regime specifically addressing ABS and to regional and national initiatives in countries including Vanuatu. The main aim of this paper is to examine the current position of regulatory frameworks that address the issue of access to genetic resources and associated TK in Vanuatu. This paper will highlight …

Bifurcation And Chaos Of Nonlinear Vibro-Impact Systems, Yu Guo

Dissertations

Vibro-impact systems are extensively used in engineering and physics field, such as impact damper, particle accelerator, etc. These systems are most basic elements of many real world applications such as cars and aircrafts. Such vibro-impact systems possess both the continuous characteristics as continuous dynamical systems and discrete characteristics introduced by impacts at the same time. Thus, an appropriately developed discrete mapping system is required for such vibro-impact systems in order to simplify investigation on the complexity of motions. In this dissertation, a few vibro-impact oscillators will be investigated using discrete maps in order to understand the dynamics of vibro-impact systems. …

The Social Construction Of Deviance, Activism, And Identity In Women's Accounts Of Abortion, Mallary Allen

Dissertations

The mainstream abortion rights debate in the United States, its opposing factions popularly identified as pro-choice and pro-life, is reliant upon identifiable narratives of abortion's value to women and society and, alternately, its harms. This dissertation traces more than one hundred years of evolution of popular rhetoric surrounding the practice of elective termination of pregnancy in the U.S. and identifies the understandings of abortion and the women who have them which are most prominent in our culture today. This dissertation examines the ways in which women who have had abortions invoke the rhetoric of "sympathetic abortion" in making sense of …

A Force Of Nature: Molecular Mechanisms Of Mechanoperception In Plants, Gabriele B. Monshausen, Elizabeth S. Haswell

Biology Faculty Research

The ability to sense and respond to a wide variety of mechanical stimuli-gravity, touch, osmotic pressure, or the resistance of the cell wall-is a critical feature of every plant cell, whether or not it is specialized for mechanotransduction. Mechanoperceptive events are an essential part of plant life, required for normal growth and development at the cell, tissue, and whole-plant level and for the proper response to an array of biotic and abiotic stresses. One current challenge for plant mechanobiologists is to link these physiological responses to specific mechanoreceptors and signal transduction pathways. Here, we describe recent progress in the identification …

Analyses Of Multivitamins In Nutraceuticals By Reverse Phase Hplc With Dad, Elsd And Ms, Hsiang-Chi Huang

All Theses

ABSTRACT
Vitamins are essential to human beings and support long-term healthy lifestyle. They exist widely in food, but in small amount. Hence, dietary supplements and fortified food products are more and more popular in the nutritional markets. According to the Infant Formula Act of 1980, the range of each of the nutrients should fall within a specific range or above the required minimum, so there is an increasing interest of accurate measurement of vitamins, particularly the B-group vitamins. However, traditional methods for vitamin B analyses are time-consuming and often in poor accuracy. As a result, rapid and reliable analytical methods …