Digital Commons Network^™

The Culture Of Sustainability At Southern Miss, Amy J. Ball

Honors Theses

The sustainability movement has been studied in general before, but little research has been done on topic of the sustainability movement at universities. This study aims to contribute to the larger conversation on sustainability by looking at the ideas and motivations behind participation in the movement among students at the University of Southern Mississippi. This is done primarily through interviews performed by the researcher with a number of students in a club on campus dedicated to spreading knowledge of and participation in sustainable activities, known as the Sustainability Advocates. Background information about the sustainability movement on campus is provided by …

Mechanisms Of Immunological Tolerance In Central Nervous System Inflammatory Demyelination., Elisabeth R. Mari, Jason N. Moore, Guang-Xian Zhang, A. M. Rostami

Department of Neurology Faculty Papers

Multiple sclerosis is a complex autoimmune disease of the central nervous system that results in a disruption of the balance between pro-inflammatory and anti-inflammatory signals in the immune system. Given that central nervous system inflammation can be suppressed by various immunological tolerance mechanisms, immune tolerance has become a focus of research in the attempt to induce long-lasting immune suppression of pathogenic T cells. Mechanisms underlying this tolerance induction include induction of regulatory T cell populations, anergy and the induction of tolerogenic antigen-presenting cells. The intravenous administration of encephalitogenic peptides has been shown to suppress experimental autoimmune encephalomyelitis and induce tolerance …

Microcystin Accumulation In Fish Muscle Tissue: Exploring The Safety Of Fish Consumption In Several Michigan Water Bodies, Heather Snyder

Masters Theses

A variety of anthropogenic factors, including global climate change and eutrophication, are causing increases in cyanobacterial abundance. Increased prevalence of cyanobacteria can be detrimental, as some genera of cyanobacteria have the ability to produce toxic secondary metabolites known as cyanotoxins. The cyanotoxin microcystin- a hepatotoxin, is the most ubiquitous and toxic cyanotoxin in freshwater ecosystems, and has been quantified in a number of aquatic organisms. Microcystin was quantified in 8 fish species from St. Mary’s River in June, Saginaw Bay in September, and from Stony Creek Lake in October in 2014 by the Michigan Department of Environmental Quality and the …

Toxin Production And Population Dynamics Of Gloeotrichia Echinulata With Considerations Of Global Climate Change, Sarah Stamann

Masters Theses

Global climate change has been identified as a driver for increasing cyanobacteria blooms world-wide. Blooms of the cyanobacterium, Gloeotrichia echinulata, (hereafter, G. echinulata) have been observed in Silver Lake (Oceana County, MI), often forming dense surface scums. This organism is known to produce the hepatotoxin, microcystin- LR, and its growth is linked to phosphorus accumulation from sediment and temperature.

A series of experiments at ambient and elevated temperatures (+2° and +6°above ambient) with sediment from four locations in Silver Lake with varying phosphorus concentrations were conducted to examine the effect of these variables on G. echinulata growth. These …

Characterization Of A Novel Megabirnavirus From Sclerotinia Sclerotiorum Reveals Horizontal Gene Transfer From Single-Stranded Rna Virus To Double-Stranded Rna Virus, Minghong Wang, Yong Wang, Xiangzhong Sun, Jiasen Cheng, Yanping Fu, Huiquan Liu, Daohong Jiang, Said A. Ghabrial, Jiatao Xie

Plant Pathology Faculty Publications

Mycoviruses have been detected in all major groups of filamentous fungi, and their study represents an important branch of virology. Here, we characterized a novel double-stranded RNA (dsRNA) mycovirus, Sclerotinia sclerotiorum megabirnavirus 1 (SsMBV1), in an apparently hypovirulent strain (SX466) of Sclerotinia sclerotiorum. Two similarly sized dsRNA segments (L1- and L2-dsRNA), the genome of SsMBV1, are packaged in rigid spherical particles purified from strain SX466. The full-length cDNA sequence of L1-dsRNA/SsMBV1 comprises two large open reading frames (ORF1 and ORF2), which encode a putative coat protein and an RNA-dependent RNA polymerase (RdRp), respectively. Phylogenetic analysis of the RdRp domain …

Comparing Evapotranspiration From Eddy Covariance Measurements, Water Budgets, Remote Sensing, And Land Surface Models Over Canada, Shusen Wang, Ming Pan, Qiaozhen Mu, Xiaoying Shi, Jiafu Mao, Christian Brummer, Rachhpal S. Jassal, Praveena Krishnan, Junhua Li, T. Andrew Black

Numerical Terradynamic Simulation Group Publications

This study compares six evapotranspiration ET products for Canada’s landmass, namely, eddy covariance EC measurements; surface water budget ET; remote sensing ET from MODIS; and land surface model (LSM) ET from the Community Land Model (CLM), the Ecological Assimilation of Land and Climate Observations (EALCO) model, and the Variable Infiltration Capacity model (VIC). The ET climatology over the Canadian landmass is characterized and the advantages and limitations of the datasets are discussed. The EC measurements have limited spatial coverage, making it difficult for model validations at the national scale. Water budget ET has the largest uncertainty because of data quality …

Is Reading-Aloud Performance In Megastudies Systematically Influenced By The List Context?, Michael J. Cortese, Sarah Hacker, Jocelyn Schock, Jonathan Santo

Psychology Faculty Publications

To examine megastudy context effects, 585 critical words, each with a different orthographic rime, were placed at the beginning or end of a 2614-word megastudy of reading aloud. Sixty participants (30 participants in each condition) responded to these words. Specific predictors examined for change between beginning and end conditions were frequency, length, feedforward rime consistency, feedforward onset consistency, orthographic neighbourhood size, age of acquisition (AoA), and imageability. While it took longer to respond to items at the end of the experiment than items at the beginning of the experiment, there was very little change in the effects of the specific …

Noncontact Diffuse Correlation Tomography Of Human Breast Tumor, Lian He, Yu Lin, Chong Huang, Daniel Irwin, Margaret M. Szabunio, Guoqiang Yu

Biomedical Engineering Faculty Publications

Our first step to adapt our recently developed noncontact diffuse correlation tomography (ncDCT) system for three-dimensional (3-D) imaging of blood flow distribution in human breast tumors is reported. A commercial 3-D camera was used to obtain breast surface geometry, which was then converted to a solid volume mesh. An ncDCT probe scanned over a region of interest on the mesh surface and the measured boundary data were combined with a finite element framework for 3-D image reconstruction of blood flow distribution. This technique was tested in computer simulations and in vivo human breasts with low-grade carcinoma. Results from computer simulations …

Primary Prevention And Risk Reduction Programming For College-Level Sexual Assault Prevention: Illustrating The Benefits Of A Combined Approach, Mellisa Holtzman, Chadwick L. Menning

eJournal of Public Affairs

Primary prevention and risk reduction strategies for reducing sexual assault on college campuses have generally been treated as distinct categories of programming, with greater emphasis placed on primary prevention in recent years. The authors propose that there is both theoretical justification and measurable benefit to synthesizing or coordinating carefully constructed primary prevention and risk reduction programming. They provide as support a summary of assessment findings from an exemplary program and discuss implications and future directions for program development and testing.

New And Contemporary Markers Of Prognosis In Nonmuscle Invasive Urothelial Cancer, Hammad Ather, Syed M Nazim

Department of Surgery Docs

Abstract

Nonmuscle invasive (NMI) urothelial cancer (UC) is associated with varied biological potential. It is characterized by frequent recurrence and progression, which thus worsens the oncological outcome. Nearly three-quarters of NMI UCs recur within 5 years, whereas half can progress during follow-up. Progression is particularly seen in T1 and carcinoma in situ (CIS). Undoubtedly, NMI UC is one of the most expensive cancers to manage. The European Organisation for Research and Treatment of Cancer (EORTC) risk calculator is a commonly used tool for assessing the recurrence and progression potential of a newly diagnosed cancer. The parameters used in the assessment …

Adolescent Bullying: Do Weight, Body Size, And Body Size Dissatisfaction Influence Victimization?, Paige T. Lembeck

College of Education and Human Sciences: Dissertations, Theses, and Student Research

The current study investigated how body mass index (BMI) z-score, peer context, and body size dissatisfaction influence bullying victimization in adolescents. Participants were 11-18 year-old patients at pediatrician’s offices in a mid-sized Midwestern city. Path analyses and percentile bootstrapping procedures were employed to investigate the research questions. A zero-inflated Poisson approach was used to examine whether there was an indirect effect between BMI z-score and bullying victimization through perceived difference from friends’ body size and body size dissatisfaction. An alternative model was investigated to determine whether BMI z-score indirectly affected body size dissatisfaction through perceived difference from friends’ body size …

Evaluate Students’ Learning Effectiveness Of Hvac System Using 3d Game Animation, Lalitha Devi Nandam

Department of Construction Engineering and Management: Dissertations, Theses, and Student Research

An important skill required for students in Construction Engineering and Architecture is to understand what the major components are and how the whole system and its components function. Students typically learn to understand HVAC equipment by reviewing two-dimensional (2D) CAD drawings, images and site visits. With latest developments in 3D game engines for facilitating interactive learning, it is now possible for students to experience three-dimensional (3D) environments of HVAC systems. While this technology is still at an early stage in learning application, it has the potential to significantly enhance the capability of students to study, comprehend and gain experience designing …

Investigation Of Reduced Agent And Area Treatments For Aphis Glycines Management And Its Effects On Key Predators, Jenny S. Enchayan

Department of Entomology: Dissertations, Theses, and Student Research

Soybeans are an abundant and valued agricultural crop in Nebraska and other parts of the world. Significant soybean aphid, Aphis glycines Matsumura, mortality has been observed in research plots adjacent to soybeans treated with chlorpyrifos in late July through August. The objectives of the study were to determine the efficacy of the chlorpyrifos vapor effect on A. glycines in adjacent untreated areas and assess the impact of the vapor effect on key biological control agents. Observation of A. glycines populations and sweep net samples for other arthropod species, including Oruis insidiosus, began weekly in mid to late July. When …

Biochemical, Physiological, And Anatomical Insights Into Aphid-Bioenergy Switchgrass Interactions, Travis J. Prochaska

Department of Entomology: Dissertations, Theses, and Student Research

Switchgrass, Panicum virgatum L., a perennial, warm-season grass native to North America, is a candidate for development as a bioenergy crop. Previously, warm-season grasses were considered to be relatively pest free in their native habitats. However, recent studies using the hemipteran family Aphididae have shown phloem-feeding insects can lead to significant injury in switchgrass. The objectives of this research were to: 1) gain physiological, biochemical, and anatomical insights into insect-bioenergy switchgrass interactions to determine potential insect resistance mechanisms among susceptible and resistant switchgrass genotypes; and 2) to generate and evaluate diverse segregating populations of switchgrass, both resistant and susceptible, to …

Resilience Thinking And Structured Decision Making In Social–Ecological Systems, Noelle M. Hart

School of Natural Resources: Dissertations, Theses, and Student Research

Natural resource management may be improved by synthesizing approaches for framing and addressing complex social-ecological issues. This dissertation examines how structured decision making processes, including adaptive management, can incorporate resilience thinking. Structured decision making is a process for establishing a solid understanding of the problem, values, management options, and potential consequences. Adaptive management is a form of structured decision making in which uncertainty is reduced for iterative decisions through designed monitoring and review. Resilience thinking can help conceptualize complex social-ecological systems and draws attention to the risks of managing for narrowly-focused objectives.

This dissertation provides practical advice to managers and …

Ecology And Morphology Of The Late Miocene Musk Deer, Longirostromeryx Wellsi (Artiodactyla: Moschidae: Blastomerycinae), Katheryn Y. C. Chen

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

Longirostromeryx wellsi, one of the latest surviving members of the extinct clade Blastomerycinae (Artiodactyla: Moschidae), possesses highly derived craniodental morphology that deviates from typical musk deer form. Previous work suggests that the unique anatomy of L. wellsi represents adaptations for occupying open savannas. To test this hypothesis I conduct principal components analysis on five postcranial bones of L. wellsi, comparing them to that of several extant ruminant artiodactyls, which are divided among seven habitat categories. These elements are also compared with the postcrania of other blastomerycines. These analyses indicate that L. wellsi anatomy is most similar to that of other …

Three-Dimensional Scaffolds Of Graphene, Carbon Nanotubes And Transition-Metal Oxides For Applications In Electronics, Sensors And Energy Storage, Gilbert N. Mbah

Department of Chemistry: Dissertations, Theses, and Student Research

Electronics, sensors and energy storage devices are the new waves behind economic development, security and communication¹. Engineering small sizes of electronic, sensors and energy storage devices is the hurdle limiting efficient, portable and vast applications of Nano-devices for economic, security and communication advancement². Silicon the major material used in transistors has approached its limit to fabricated Nano-devices³. The discovery of free standing, one atomic layer thick and two-dimensional graphene sheets with high conductivity, inert, high specific surface area, stable and high tensile strength material in 2004 has shown capabilities to replaced silicon in electronics, …

The Intersection Of Nuclear Magnetic Resonance And Quantum Chemistry, Yali Wang

Department of Chemistry: Dissertations, Theses, and Student Research

Nuclear Magnetic resonance and quantum chemistry have been recognized to be strong tools for probing the structure and dynamics of molecules to further solve chemistry and biological problems. Chemical shift measured by NMR experiment and chemical shielding, molecular energy and molecular structure calculated by quantum chemistry provide extensive information.

Exact analytic gradients, are obtained for cavitation, dispersion and repulsion energies and time-dependent density functional theory for the continuum solvation model, which could be used to probe the structure, dynamics and properties of molecules. Copper in Cu_A azurin is recognized to be coordinated by a structure water molecule by comparing …

Systems Of Parameters And The Cohen–Macaulay Property, Katharine Shultis

Department of Mathematics: Dissertations, Theses, and Student Research

Let R be a commutative, Noetherian, local ring and M a finitely generated R-module. Consider the module of homomorphisms Hom_R(R/a,M/bM) where b [subset of] a are parameter ideals of M. When M = R and R is Cohen-Macaulay, Rees showed that this module of homomorphisms is isomorphic to R/a, and in particular, a free module over R/a of rank one. In this work, we study the structure of such modules of homomorphisms for a not necessarily Cohen-Macaulay R-module M.

The Road Rage And Aggressive Driving Dichotomy: Personality And Attribution Factors In Driver Aggression, Kathryn Elizabeth Schafer

HIM 1990-2015

Aggressive driving is not clearly and consistently defined in the literature, neither in terms of the specific behaviors chosen for inclusion nor the degree to which the emotional state of the driver is taken into account. Principally, the aim of this current research is to determine the extent to which aggressive driving and road rage overlap. This will be accomplished primarily by applying two well-supported dichotomies in aggression research: hostile/instrumental and impulsive/premeditated. Relevant personality traits will also be measured to help discern the aggressive driving- road rage overlap and to explore secondary areas of interest, such as sex and age …

Nursing Interventions To Prevent Necrotizing Eterocolitis: A State Of The Science Literature Review, Katherine Casto

HIM 1990-2015

The purpose of this review of literature is to understand the current state of the science and to make recommendations for practice and research in regards to the gastrointestinal condition affecting premature infants, necrotizing enterocolitis (NEC). Emphasis is placed on reviewing the literature to identify prevention strategies nurses can use to reduce the incidence, morbidity and mortality of NEC. The introduction will focus on discussing the problem of NEC including its risk factors, pathophysiology, and disease presentation. The findings sections will focus on the most promising and researched areas of intervention. The discussion section will focus on how this knowledge …

Playing With Fire: An Ethnographic Look At How Polyamory Functions In The Central Florida Burner Community, Maleia Mikesell

HIM 1990-2015

This thesis asks the question as to whether polyamory functions as a community glue or solvent for the Central Florida Burner Community. It explores the definition of polyamory and how it relates to the Burner counter-culture. This thesis explores what polyamory's effects are on the individual and community levels for those who participate in it. The findings concluded that overall the participants reported a perceived positive impact on both the individual level and on community cohesion in this case. The participants also revealed that the environment Burning Man provides is generally open and welcoming of polyamory.

Analyzing The Relationship Between Women's Decisions To Use Contraception And Their Partners' Perceptions Of Preventative Behavior, Kayla Gayle-Campbell

HIM 1990-2015

A majority of adolescents and young adults report inconsistent use of safe sexual behaviors and contraception methods due to a variety of influencing factors. These practices can lead to limited future reproductive choices and can spread communicable disease in the population. The purpose of this study was to determine if a woman's decision to use a specific type of contraceptive method is influenced by her partner's attitude toward preventive sexual health practices. A secondary purpose was to analyze women's attitudes towards safe sex and contraceptive practices as independent entities of disease and pregnancy in the reproductive cycle. A literature review …

The Effect Of Color On Working Memory Performance, Michelle Galvez

HIM 1990-2015

This paper explores the effect of color on working memory performance. Interest in Baker-Miller pink surged with the finding by Schauss (1979) that it reduced aggression in aggravated detainees. However, research behind Baker-Miller pink has been influenced by biases and methodological errors. Its effects are likely overstated. Red and blue have also been studied for their effects on creativity, approach-avoidance conflict, detail-orientation, and most importantly, stress. Further research has been conducted on the effects of relaxation on cognition, with the conclusion that increased relaxation leads to improvements in working memory performance. This paper tests the effect of color on working …

Once Again, My Epiphyllum: Hope, Joy And Excitement, Wenling Ma

Librarian Publications

Wenling Ma describes the second flowering of her Epiphyllum in August 2015.

Acoustic Performance Of Reiterated Hierarchical Honeycomb Structures, Naveen Nainar

All Theses

Sandwich panels constructed from honeycomb structures have been found to reduce sound transmission and improve vibration isolation. In this work, reiterated hierarchical honeycomb structures have been modeled for the core in sandwich panels and studied for sound transmission properties using finite element analysis. Several honeycomb unit cell geometries are considered, including, regular hexagonal, auxetic with properties of negative Poisson’s ratio, and different reiterated hierarchical structures. Previous studies have shown that auxetic honeycomb structures exhibit improved sound transmission loss compared to regular honeycomb sandwich panels. Two different orientations of the honeycomb unit cell geometry have been studied, namely, the zigzag and …

Interkingdom Communication: Study Of Caenorhabditis Elegans And Vibrio Cholerae Interactions, Joseph Angeloni

All Theses

Vibrio cholerae is a Gram-negative, rod-shaped bacterium that is mainly found in water environments, and is the causative agent of the disease cholera in humans. It is critical for this bacterium to communicate via quorum sensing to persist and survive in the environment, as well as cause infection. Recently, it has been shown that eukaryotes are able to sense and respond to certain quorum sensing molecules, known as autoinducers, which are produced by different bacteria. Caenorhabditis elegans is a particularly useful model for studying this interaction. During preliminary experiments, it was noticed that C. elegans were strongly attracted to V. …

Physiological And Psychophysical Aspects Of Shallow Water Exercise, Leo Joseph D'Acquisto, Laura Jean Miller, Debra Mary D'Acquisto, Karen Roemer, Mitchell Grant Fisher

International Journal of Aquatic Research and Education

This study investigated the cardiorespiratory responses to perceptually self-regulated shallow water exercise (SR-SWE) efforts. Females (26 ± 6 years) performed a series of SWE bouts prescribed at rating of perceived exertion (RPE) 9, 11, 13, 15, and 17 (Borg scale) and an incremental, SR-SWE bout to a max of RPE 20. Oxygen uptake (VO2) heart rate (HR), and blood lactate (BLa) were monitored. VO2, HR, and BLa ranged from 0.68 ± 0.13 l·min–1, 90 ± 16 bpm, 2.0 ± 0.7 mM (RPE 9) to 2.21 ± 0.21 l·min–1, 162 ± 11 bpm, and 3.9 ± 1.6 mM (RPE

Cardiorespiratory Responses To A 20-Minutes Shallow Water Tabata-Style Workout, Laura Jean Miller, Leo Joseph D'Acquisto, Debra Mary D'Acquisto, Karen Roemer, Mitchell Grant Fisher

International Journal of Aquatic Research and Education

The purpose of this study was to examine physiological responses to a 20-min Tabata-style shallow water exercise workout (TS-SWE). Volunteers (n = 9, females) had recently participated in an experiment (Experiment I) that measured, in part, peak oxygen uptake and heart rate (VO2 and HR) during SWE (D’Acquisto, Miller, D’Acquisto, Roemer, & Fisher, 2015). Peak VO2 and HR were used in the current

Civil Society Contributions To Inclusive Climate Cooperation, Elizabeth Burleson

Fordham International Law Journal

Engagement among States and decentralized, creative problem solvers can enhance the requisite cooperation to pick up the pace of solution implementation to match the rate of climate change. Global organizing capability, information sharing and innovation have enmeshed governments and civil society into new governance relationships. Technology has facilitated this process for many, but the hardware and software that has led to social networking is only a fraction of the story of dynamic, inclusive cooperation. Citizen sector actors hold both destructive and constructive capacity exceeding that of any previous era. While many remain overwhelmed by the scope of climate instability, members …