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Model Of Residence Time And Analysis Of Nitrogen Removal For Two Constructed Wetlands At The Franklin Demonstration Farm In Lexington, Illinois, Emma Singh Baghel

Theses and Dissertations

Pollution from nonpoint agricultural runoff has become a major problem facing our streams and rivers today. Not only are fish and aquatic life affected, but so is the quality of our drinking and recreational water resources. Studies have shown that wetlands have proven to be the most cost-effective and low maintenance method of removing nonpoint or diffused contaminate inputs. The biological processes and removal of nutrients in wetlands depend on the total surface area available for microbial activity in the soil and a certain period of water retention time. Since chemical processes take time, the measure of residence time is …

Ways In Which Participation In Intercollegiate Athletics Contributes To The Learning And Development Of Student-Athletes, R. Chad Good

Theses and Dissertations

WAYS IN WHICH PARTICIPATING IN INTERCOLLEGIATE ATHLETICS CONTRIBUTES TO THE LEARNING AND DEVELOPMENT OF STUDENT-ATHLETES

R. CHAD GOOD

155 pages May 2015

The purpose of this phenomenological qualitative study was to investigate the impact of Division I intercollegiate athletic participation on the student learning and development of former student-athletes. More specifically, in what did ways these student-athletes perceive gains and losses as related to their overall life and career skills repertoire. The study is somewhat unique considering there is a dearth of qualitative research available regarding this particular research topic.

The study focused on the specific ways in which former …

Investigating The Initial Detection Stage Of Meiotic Silencing By Unpaired Dna In The Model Organism Neurospora Crassa, Pegan A. Sauls

Theses and Dissertations

In an attempt to neutralize transposable elements or retrovirus invasions Neurospora crassa will rely on one of its many genome defense mechanism, Meiotic Silencing by Unpaired DNA (MSUD). MSUD works in a two-step process that first detects unpaired sequences between homologous chromosomes followed by downstream silenced expression of the sequence. The ultimate silencing stage of MSUD is widely accepted to operate through an RNAi-like system. However, the mechanics of the detection step of MSUD remains elusive. The research presented attempts to elaborate on how the initial stage of MSUD occurs and its specifics. First, a genetic approach is utilized to …

Middle School Plunge: A Mixed-Methods Study Exploring 6th Grade Students' Perceptions Of Their Transition To Middle School Experiences And Its Influences On School Achievement And Performance For Urban Youth, Lakecia Hyman

Theses and Dissertations

Minority students from inner cities care greatly about their education and want to be successful in school (Corbett & Wilson, 2002). This mixed-methods study sought to explore the correlation between urban students' perceptions of their middle school transitional experiences and The Middle School Plunge academic decline phenomenon that impacts minority youth once they move into 6th grade (West & Schwerdt, 2012). Some researchers on the topic assert that middle school grade configurations influence student achievement outcomes and that students who remain in K-8 settings outperform their peers who attend stand-alone 6th-8th grade middle schools (Carrell & Hoekstra, 2009; Jacobs, 2012; …

Hatching Asynchrony In European Starlings ( Sturnus Vulgaris ), Jason Hanser

Theses and Dissertations

Across a wide range of avian taxa, eggs within clutches hatch asynchronously, placing later hatched nestlings at a disadvantage. Here, we explore the proximate and ultimate causes of hatching asynchrony within European starlings, Sturnus vulgaris. Specifically, we investigate the effect of ambient temperature on egg viability and incubation behavior prior to clutch completion. Additionally, we examine the potential for storage time and maternally-deposited yolk testosterone to influence rates of embryonic development and hatching patterns within European starlings.

Childhood Sexual Abuse And Identity Development: The Role Of Attachment And Self-Esteeem, Joel David Dukett

Theses and Dissertations

The purpose of the study was to examine how childhood sexual abuse (CSA) influences identity development along with attachment and self-esteem. The participants included 208 first-year female undergraduate students from Illinois State University. Students were afforded the opportunity to receive extra credit for their participation and could enter into a random prize drawing. Participants completed a demographics questionnaire, Rosenberg Self-Esteem Scale, The Experiences in Close Relationships Questionnaire, Dimensions of Identity Development Scale, and the Hot Topics Questionnaire which assesses history of CSA. Of the participants, 145 (69.7%) were in the non-abuse group and 63 (30.3%) were in the abuse group. …

Developing A Fuzzy Expert System To Examine Hazard Analysis In The United States Army, Charles J. Karels

Theses and Dissertations

The research conducted in this thesis is an attempt to determine if there are any biographical similarities between second lieutenants in the US Army who view risk in a similar manner and if so, which are the most significant. A study was conducted using in-group surveys of 72 second lieutenants receiving training in Infantry Basic Officer Leader Course (IBOLC). The participants were provided with two written surveys each presenting a scenario based on military activities. They were asked to evaluate the scenarios and fill out Risk Management (RM) worksheets based on the US Army's doctrinal process for conducing RM. The …

Evolution And Biogeography Of Mesoamerican Small Mammals: With Focus On The Genus Handleyomys And Related Taxa, Ana Villalba Almendra

Theses and Dissertations

Mesoamerica is considered a biodiversity hot spot with levels of endemism and species diversity likely underestimated. For mammals, the patterns of diversification of Mesoamerican taxa still are controversial. Reasons for this include the region's complex geologic history, and the relatively recent timing of such geological events. Previous studies, however, support the view that substantial migration between North (NA) and South America (SA) occurred prior or/and during the Great American Biotic Interchange (GABI) ~3.5 Ma. This was followed by repeated periods of isolation during Pleistocene climatic oscillations, which produced most of the diversification in the region. From a North American origin, …

Identification Of Specific Learning Disability In New Jersey: An Illuminative Evaluation, Jennifer Garwood

Theses and Dissertations

Many studies have examined changes in state legislation and guidance in response to IDEIA (2004) with regard to identification of specific learning disability (SLD). However, it is difficult to find research examining the diagnostic practices for SLD within various states. Investigators in the present study aim to isolate the significant features of practices used to identify SLD in New Jersey, delineate relationships between district characteristics and diagnostic practices, and detect trends in the use of response to intervention (RTI). This qualitative research study utilizes an illuminative evaluation model, in which survey and interview data was analyzed to explore aspects of …

Dietary Habits And Colorectal Cancer Risk, Stacie M. Frovarp,

Theses and Dissertations

According to the American Cancer Society (ACS) (2014), colorectal cancer (CRC) is the "3rd leading cause of cancer related deaths in the United States"(p. 3). Researches have hypothesized how dietary habits could increase an individual's risk of developing CRC. Diets high in red meat for example, have long been thought to produce carcinogens through cooking and digestive processes. These carcinogens damage colon DNA, leading to neoplastic changes (Raskov, Pommergaard, Burcharth, & Rosenberg, 2014). On the other hand, fiber has been suggested as having a protective nature to individuals with CRC risk. Throughout this literature review a case involving 65-year-old female …

Educating Cliniccians On Evidence Based Interventions For Healthy Literacy, Kathryn Shradley

Theses and Dissertations

The need for health literate communication is evident in a changing and complex health care system. Yet, little formal training is available for nurses, physicians, and other health clinicians. Poor communication in the healthcare setting has negative effects on the patient, on the clinician, the health system and the larger community. This literature review identified techniques evident in the literature to produce positive patient and clinician health and communication outcomes. Supported interventions include communication techniques such as motivational interviewing, teach-back, teach-to-goal, the Four Habits Model and the Ask Me 3 model. The impact of such interventions can be measured through …

A Compliant Mechanism-Based Variable-Stiffness Joint, Jacob Marc Robinson

Theses and Dissertations

A review of current variable-stiffness actuators reveals a need for more simple, cost effective, and lightweight designs that can be easily incorporated into a variety of human-interactive robot platforms. This thesis considers the potential use of compliant mechanisms to improve the performance of variable-stiffness actuators. The advantages and disadvantages of various concepts using compliant mechanisms are outlined, along with ideas for further exploration. A new variable-stiffness actuator that uses a compliant flexure as the elastic element has been modeled, built, and tested. This new design involves a variable stiffness joint that makes use of a novel variable transmission. A prototype …

Access, Gender, And Agency On Study Abroad: Four Case Studies Of Female Students In Jordan, Jordan Wilson

Theses and Dissertations

This qualitative study follows the experiences of four female students as they sought to gain access to native speakers and the L2, engage with the culture, and fulfill program speaking requirements (two hours of speaking the second language outside of class per weekday) in Amman, Jordan. The research explores the following questions: what challenges did female participants on BYU's intensive Arabic study abroad (SA) program face as they accessed native speakers and the L2 outside of the classroom, how were participants able to persevere through and overcome these challenges, and how were program interventions set up to help participants persevere …

The Effect Of Quality Of Life And Health Behaviors In Schizotypy, Victoria Giordano

Theses and Dissertations

Individuals diagnosed with schizophrenia are typically found to engage in higher rates of poorer health behaviors, such as higher rates of smoking and poorer nutrition. Along with poorer health behaviors, individuals with schizophrenia tend to report a lower quality of life than an individual without a schizophrenia diagnosis. Our study chose to look at schizotypy, or sub-clinical schizophrenia, and its relation to quality of life and health behaviors. We found that individuals that measure high on the subclinical schizotypy scale tend to mirror the health and quality of life ratings of an individual diagnosed with schizophrenia - they are more …

Examining The Underlying Currents Of High School Girls' Perceived Stem Self-Efficacy And Science Course Options: A Mixed Methods Study, Jill Patterson

Theses and Dissertations

Increased demands for a STEM-literate workforce have emerged in response to sustainability issues that threaten human welfare. A workforce capable of addressing such issues would need to be competent, have an understanding of Earth as a system and related physical science principles, and available, be willing to pursue such fields. Workforce concerns about contributors' competency and availability are further fueled by students' persisting underachievement in science and women's underrepresentation in STEM degrees and careers. While New Jersey students, in comparison to other states, are achieving in science, girls remain underrepresented in physical sciences. From a feminist lens of social cognitive …

Immunoassays Of Potential Cancer Biomarkers In Microfluidic Devices, Jayson Virola Pagaduan

Theses and Dissertations

Laboratory test results are important in making decisions regarding a patient's diagnosis and response to treatment. These tests often measure the biomarkers found in biological fluids such blood, urine, and saliva. Immunoassay is one type of laboratory test used to measure the level of biomarkers using specific antibodies. Microfluidics offer several advantages such as speed, small sample volume requirement, portability, integration, and automation. These advantages are motivating to develop microfluidic platforms of conventional laboratory tests. I have fabricated polymer microfluidic devices and developed immunoassays on-chip for potential cancer markers. Silicon template devices were fabricated using standard photolithographic techniques. The template …

A Two-Laser Beam Technique For Improving The Sensitivity Of Low Frequency Open Path Tunable Diode Laser Absorption Spectrometer (Op-Tdlas) Measurements, Isra'a Lateef Mohammad

Theses and Dissertations

Open path tunable diode-laser absorption spectroscopy (OP-TDLAS) is a promising technique that is proposed for detecting low concentrations of possible biogenic gases on Mars. This technique determines the concentration of a gas by measuring the amount of laser light absorbed by molecules at a specific wavelength that is characteristic of those molecules. One of the major factors limiting sensitivity in the OP-TDLAS systems is noise. At low modulation frequencies, 1/f noise usually dominates. This 1/f noise is minimized in many spectroscopy systems by use of high frequency techniques. However, these methods use complex instruments that include reference cells and other …

Single-Walled Carbon Nanotube And Graphene: Nano-Delivery Of Gambogic Acid Increases Its Cytotoxicty In Various Cancer Cells, Lamya A. M Saeed

Theses and Dissertations

Nanomedicine is a new branch of medicine that has been developed due to the critical need to treat challenging diseases, especially cancer since it remains a significant cause of morbidity and mortality worldwide and the second most common cause of death after heart disease in the USA. One of the most important health care applications of nanomedicine concerns the development of drug delivery systems. Graphene (Gn), an atom-thick carbon monolayer of sp2- bonded carbon atoms arranged in a two dimensional (2D) honeycomb crystal lattice, and single-walled carbon nanotubes (SWCNTs) (1D, tubular) are among the most promising nanomaterials with the capability …

Context-Sensitive Entity Resolution, William C. Decker

Theses and Dissertations

This dissertation proposes an entity resolution approach that is context-sensitive, meaning it relies less on high-risk information, such as social security numbers, to discern whether records from a data set belong to the same real-world individual or to different real-world individuals. The research follows an iterative process of assessing the quality, or fitness of use, of identity data housed in an educational institution and then processing the data with the proposed context-sensitive entity resolution (ER) rule set. The efficacy of this process is demonstrated through calculation of the four-year adjusted cohort graduation rate, a prevalent longitudinal data analysis challenge for …

Assessing Reservoir Morphology Using Gis, National Databases, And Statistical Analysis, Kirk Douglas Rodgers

Theses and Dissertations

Several databases of national scale were compiled to develop a database of reservoir morphological parameters including, but not limited to shoreline development index, index of basin permanence, development of volume and other descriptive parameters based on established morphometric formulas (see Appendix 1 for a list of morphometric formulas). The compilation of the reservoir morphological database (RMD) developed a comprehensive parameter set including those from input datasets and other parameters not contained in the original datasets. The RMD contains 3,873 publicly accessible reservoirs which were analyzed through the use of parametric and non-parametric statistics to determine if significant differences, based on …

Focal Structures Analysis In Complex And Social Networks, Fatih Sen

Theses and Dissertations

Identifying influential individuals is a well-known approach in extracting actionable knowledge in a network. Previous researches suggest measures to identify influential individuals, e.g., they focus on the question ``which individuals are best connected to others or have the most influence?". Such individuals, however, might not represent the context (relationships, interactions, etc.) entirely in a social network. For example, it is nearly an impossible task for a single individual to organize a mass protest of the scale of the 2011 Arab Spring and the 2012 Occupy Wall Street. Similarly, other events such as mobilizing the 2013 Taksim square-Gezi Park protesters, coordinating …

Molecular Modeling And Insilico Characterization Of Mutations Associated With Multiple Drug Resistant Tuberculosis (Mdr-Tb) And Extensive Drug Resistant Tuberculosis (Xdr-Tb), Sravanthi Joginipelli

Theses and Dissertations

The increasing emergence of multiple and extensive drug resistant tuberculosis poses a significant threat to effective control of tuberculosis (TB) globally. Resistance is a serious threat in the battle against the treatment and eradication of Tuberculosis. The continuing rise in tuberculosis incidence and the problem of drug resistance strains have prompted the research on developing new drug candidates and understanding the mechanism of drug resistance. Highly frequent mutations in gene sequence of mycobacterium tuberculosis were identified and were used to understand the mechanism of resistance and were computationally modeled to identify potential drug candidates for the treatment of MDR-TB and …

Pincer Complexes Of Diamido-Pyridine Based Ligand As Catalysts For C-Cl And C-H Bond Activation For Cross-Coupling Reactions, Yashraj Gartia

Theses and Dissertations

Pincer type ligands have received much attention, especially for their ease of synthesis employing easily available and inexpensive starting materials. Excellent thermal stability and high melting points enable these complexes to be potentially used in a range of organometallic catalysis. In recent years, the use of nitrogenous donors at the central coordinating-group position, such as pyridines, has gained much interest for their application in various organic transformation reactions. Main examples include the activation of carbon-halogen bond, carbon-hydrogen bond, activation of small molecules (CO2, N2), polymerization of alkenes, dehydrogenation reactions, and the transfer hydrogenation reaction. In this study, we synthesized pyridine …

Functional Analysis Of Genes Involved In Response To Sheath Blight Disease Using Virus-Induced Gene Silencing, Elaf Osamaho Mohammed Ali

Theses and Dissertations

Phytotoxins (RS toxin) play a crucial role in the virulence of the necrotrophic phytopathogenic Rhizoctonia solani. This pathogen is highly invasive and has an extremely wide host range that causes economic loss, moreover, this pathogen is both soil- and water-borne and can produce lesion symptoms that rapidly develop into a disease known as sheath blight disease. Susceptibility to this disease and sensitivity to phytotoxins depend on the plant's ability to defend itself against the pathogen attack and induce an active defense mechanism. There are several genes-candidates that have been suggested as possible host-plant sensitivity genes associated with R. solani infection. …

Raman Spectroscopy As A Tool For Single Circulating Tumor Cell (Ctc) Detection And Imaging, Zeid A. Nima

Theses and Dissertations

Breast cancer is the most common type of cancers in the United States. It is imperative that a quick and reliable method for the early detection of circulating tumor cells (CTCs) be identified and tested. In this research several new detection and imaging techniques based on using Raman spectroscopy have been invented. Raman active nano-complex agents based on single-walled carbon nanotubes (SWCNTs) were prepared and used for the swift and specific detection of breast cancer cells. SWCNTs are functionalized with the anti-epithelial cell adhesion molecule (anti-EpCAM) antibody, were able to detect CTCs within 30 min and discriminate few CTCs among …

Non-Rated Air Force Line Officer Attrition Rates Using Survival Analysis, Jill A. Schofield

Theses and Dissertations

The Air Force structures its workforce around rank structure and work specialty codes (Air Force Specialty Codes (AFSCs)). The challenge is to grow and manage personnel to fill a variety of skill sets at a variety of ranks over a 20-30 year planning horizon. To ensure that the missions are accomplished while adhering to congressionally-mandated force allocations, the Air Force is continually attempting to \right size its force by maintaining the correct balance of personnel in each career field. The Air Force conducts its force structure management responsibility by comparing historical attrition rates to current manpower requirements for each AFSC …

Photoluminescence And Optically Stimulated Luminescence Studies Of Lialo2 And Ligao2 Crystals, Ian P. Ferguson

Theses and Dissertations

Copper diffusion in LiAlO2 creates large photoluminescence (PL) and optically stimulated luminescence (OSL) signals that are not present in as-grown samples. The main PL band peaks at 3.45 eV (359 nm) and is excited by a band peaking at 4.54 eV (273 nm). After x-ray irradiation, OSL results from 425-500 nm continuous wave light. An optical absorption band in the same region decays during optical stimulation. Analysis of the wavelength dependence of the OSL emitted light reveals a band that is similar in peak location and width to the PL band suggesting that they occur at the same copper defect. …

Leveraging Human Insights By Combining Multi-Objective Optimization With Interactive Evolution, Joshua R. Christman

Theses and Dissertations

Deceptive fitness landscapes are a growing concern for evolutionary computation. Recent work has shown that combining human insights with short-term evolution has a synergistic effect that accelerates the discovery of solutions. While humans provide rich insights, they fatigue easily. Previous work reduced the number of human evaluations by evolving a diverse set of candidates via intermittent searches for novelty. While successful at evolving solutions for a deceptive maze domain, this approach lacks the ability to measure what the human evaluator identifies as important. The key insight here is that multi-objective evolutionary algorithms foster diversity, serving as a surrogate for novelty, …

Characterization And Analysis Of Integrated Silicon Photonic Detectors For High-Speed Communications, Joseph W. Haefner

Theses and Dissertations

As the digital age of rapidly expanding information systems and technology continue to grow and develop at an ever increasing rate, new fabrication media must be investigated in order to keep up with these trends. The modern age has been defined by the innovation and advancement of the semiconductor transistor specifically Silicon, however these days of exponential performance gain through gate minimization are coming to a close. One such field which shows great promise for meeting the challenges of the future is the integration of photonic and complementary metal oxide semiconductor components; leveraging the long standing fabrication history of Silicon …

Pilot Assisted Inertial Navigation System Aiding Using Bearings-Only Measurements Taken Over Time, Anthony T. Mirabile

Theses and Dissertations

The objective of this work is to develop an alternative INS aiding source other than the GPS, while preserving the autonomy of the integrated navigation system. It is proposed to develop a modernized method of aerial navigation using driftmeter measurements from an E/O system for ground feature tracking, and an independent altitude sensor in conjunction with the INS. The pilot will track a ground feature with the E/O system, while the aircraft is on autopilot holding constant airspeed, altitude, and heading during an INS aiding session. The ground feature measurements from the E/O system and the INS output form measurements …