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Playing With Food: Practices Of Consumption Cuisine And Embodiment In Video Games, Zachary Graham Hill

English Theses & Dissertations

The implementation of food in video games is extremely common to the medium, yet its function and placement within the cultural paradigms of video games remain unexamined. The purpose of this thesis is to examine games where culinary practices and foodways are brought to the forefront, making them either a key element to gameplay, or the only element of gameplay. By critically examining the various usages of food in game-spaces, this thesis examines the embodied relationship in video game spaces between players and their avatars through their encounters with food in these spaces. The relationships between player, avatar, and food …

Computational Development For Secondary Structure Detection From Three-Dimensional Images Of Cryo-Electron Microscopy, Dong Si

Computer Science Theses & Dissertations

Electron cryo-microscopy (cryo-EM) as a cutting edge technology has carved a niche for itself in the study of large-scale protein complex. Although the protein backbone of complexes cannot be derived directly from the medium resolution (5-10 Å) of amino acids from three-dimensional (3D) density images, secondary structure elements (SSEs) such as alpha-helices and beta-sheets can still be detected. The accuracy of SSE detection from the volumetric protein density images is critical for ab initio backbone structure derivation in cryo-EM. So far it is challenging to detect the SSEs automatically and accurately from the density images at these resolutions. This dissertation …

Motivation, Marital Quality, Maternal Gatekeeping, Breadwinning, And Father Identity: Models Of Biological Fathers’ And Stepfathers’ Involvement In Childcare, Jessica E. Ladage

Psychology Theses & Dissertations

Compared to biological fathers, there is far less knowledge about stepfathers in reference to their involvement in childcare. As stepfathers continue to increase in number in the United States, it is important to understand the factors that influence a stepfather to be more or less involved in the care of their stepchildren. Few studies have examined both biological fathers and stepfathers together on multiple sets of parenting variables. Thus, the current study aims to compare biological fathers and stepfathers on a model of paternal involvement.

Participants were 306 biological fathers and 69 stepfathers. In order to participate, fathers had to …

Investigation Into Protein Folding And Misfolding, Jason Charles Collins

Theses and Dissertations in Biomedical Sciences

Proteins are the fundamental building blocks of all living organisms. They are critical in the proper function of virtually all cellular processes and without them biological life would be impossible. Since their discovery, understanding the transition of DNA to functional protein has been separated into two distinct areas of research; 1) how are they synthesized from genetic material and 2) once formed how do they fold into their native tertiary and quaternary structures. Understanding how genetic material encodes the primary structure of amino acids was the basis of the first-half of the genetic code. This in part sparked a technological …

Ablation Of Cardiac Tissue With Nanosecond Pulsed Electric Fields: Experiments And Numerical Simulations, Fei Xie

Biomedical Engineering Theses & Dissertations

Cardiac ablation for the treatment of cardiac arrhythmia is usually performed by heating tissue with radio-frequency (RF) electrical currents to create conduction-blocking lesions in order to stop the propagation of electrical waves. Problems associated with RF ablation are recurrence of arrhythmias after successful treatments, tissue loss beyond the targeted tissue, long duration of the ablation procedure, and thermal side effects including thrombus formation that may lead to stroke. Here, we propose a new, non-thermal ablation method using nanosecond pulsed electric fields (nsPEFs) with better-controlled ablation volume, shorter procedure time, and no thermal side effects. We demonstrate that we can create …

College Of Health Sciences Newsletter, March 2015, Irvin Harrell (Ed.)

Ellmer College of Health Sciences Newsletters

March 2015 issue of Old Dominion University's College of Health Sciences Newsletter.

Refraction Of Scroll-Wave Filaments At The Boundary Between Two Reaction-Diffusion Media, Christian W. Zemlin, Frency Varghese, Marcel Wellner, Arkady M. Pertsov

Bioelectrics Publications

We explore the shape and the dynamics of scroll-wave filaments in excitable media with an abruptly changing diffusion tensor, important for cardiac applications. We show that, similar to a beam of light, the filament refracts at the boundary separating domains with different diffusion. We derive the laws of filament refraction and test their validity in computational experiments. We discovered that at small angles to the interface, the filament can become unstable and develop oscillations. The nature of the observed instabilities, as well as overall theoretical and experimental significance of the findings, is discussed.

Undergraduate Research In Biology Iii: Causes Of Avian Mortality, Eric Walters

Undergraduate Research Symposium

No abstract provided.

Undergraduate Research In Biology Ii: Aquatic Ecology, David Gauthier

Undergraduate Research Symposium

No abstract provided.

Poster Session, Honors College, Old Dominion University

Undergraduate Research Symposium

Poster Session features 21 posters in Biology, Chemistry, Park, Recreation & Tourism, Psychology, Computer Science, Electrical and Computer Engineering, Biochemistry, Political Science, Bioelectrics, Geology, Counseling and Human Services.

Medicine And World War I, Annette Finley-Croswhite

Undergraduate Research Symposium

No abstract provided.

Undergraduate Research In Biology I: Understanding Pathogens And Their Vectors, Dayle Daines

Undergraduate Research Symposium

No abstract provided.

A Comparison Of Survey Methods For Documenting Presence Of Myotis Leibii (Eastern Small-Footed Bats) At Roosting Areas In Western Virginia, John K. Huth, Alexander Silvis, Paul R. Moosman Jr., W. Mark Ford, Sara Sweeten

Virginia Journal of Science

Many aspects of foraging and roosting habitat of Myotis leibii (Eastern Small-Footed Bat), an emergent rock roosting-obligate, are poorly described. Previous comparisons of effectiveness of acoustic sampling and mist-net captures have not included Eastern Small-Footed Bat. Habitat requirements of this species differ from congeners in the region, and it is unclear whether survey protocols developed for other species are applicable. Using data from three overlapping studies at two sampling sites in western Virginia’s central Appalachian Mountains, detection probabilities were examined for three survey methods (acoustic surveys with automated identification of calls, visual searches of rock crevices, and mist-netting) for use …

Merging Two Worlds: Agent-Based Simulation Methods For Autonomous Systems, Andreas Tolk

Computational Modeling & Simulation Engineering Faculty Publications

This chapter recommends the increased use of agent-based simulation methods to support the design, development, testing, and operational use of autonomous systems. This recommendation is motivated by deriving taxonomies for intelligent software agents and autonomous robotic systems from the public literature, which shows their similarity: intelligent software agents can be interpreted as the virtual counterparts of autonomous robotic systems. This leads to examples of how simulation can be used to significantly improve autonomous system research and development in selected use cases. The chapter closes with observations on the operational effects of possible emergent behaviour and the need to align the …

Potential Of Cognitive Computing And Cognitive Systems, Ahmed K. Noor

Computational Modeling & Simulation Engineering Faculty Publications

Cognitive computing and cognitive technologies are game changers for future engineering systems, as well as for engineering practice and training. They are major drivers for knowledge automation work, and the creation of cognitive products with higher levels of intelligence than current smart products. This paper gives a brief review of cognitive computing and some of the cognitive engineering systems activities. The potential of cognitive technologies is outlined, along with a brief description of future cognitive environments, incorporating cognitive assistants - specialized proactive intelligent software agents designed to follow and interact with humans and other cognitive assistants across the environments. The …

Neuroimaging And Neuromodulation Approaches To Study Eating Behavior And Prevent And Treat Eating Disorders And Obesity, D. Val-Laillet, E. Aarts, B. Weber, M. Ferrari, V. Quaresima, L. E. Stoeckel, M. Alonso-Alonso, M. Audette, C. H. Malbert, E. Stice

Computational Modeling & Simulation Engineering Faculty Publications

Functional, molecular and genetic neuroimaging has highlighted the existence of brain anomalies and neural vulnerability factors related to obesity and eating disorders such as binge eating or anorexia nervosa. In particular, decreased basal metabolism in the prefrontal cortex and striatum as well as dopaminergic alterations have been described in obese subjects, in parallel with increased activation of reward brain areas in response to palatable food cues. Elevated reward region responsivity may trigger food craving and predict future weight gain. This opens the way to prevention studies using functional and molecular neuroimaging to perform early diagnostics and to phenotype subjects at …

Role Of Low Exposure To Metals As Male Reproductive Toxicants, H. Anna Jeng, Yeou-Lih Huang, Chih-Hong Pan, Norou Diawara

Community & Environmental Health Faculty Publications

The objective of the study was to examine the associations between environmentally relevant low metal concentrations and semen quality parameters in men. The concentrations of zinc (Zn), copper (Cu), cadmium (Cd), arsenic (As), selenium (Se), and lead (Pb) in the seminal plasma and urine were measured from 196 male human subjects in Taiwan. Urinary Cd concentrations were negatively associated with sperm viability (p=0.006). Seminal plasma Cu concentrations of the normal group (>= 15 x 10(6)/ml) were significantly lower than those of the abnormal group (p=0.023). However, the linear regression analysis showed a weak association between Cu concentration and sperm …

Subsistence Strategies In Traditional Societies Distinguish Gut Microbiomes, Alexandra J. Obregon-Tito, Raul T. Tito, Jessica Metcalf, Krithvivasa Sankaranarayanan, Jose C. Clemente, Luke K. Ursell, Zhenjiang Zech Xu, Will Van Treuren, Rob Knight, Morris Foster

Division of Research and Economic Development Faculty & Staff Publications

Recent studies suggest that gut microbiomes of urban-industrialized societies are different from those of traditional peoples. Here we examine the relationship between lifeways and gut microbiota through taxonomic and functional potential characterization of faecal samples from hunter-gatherer and traditional agriculturalist communities in Peru and an urban-industrialized community from the US. We find that in addition to taxonomic and metabolic differences between urban and traditional lifestyles, hunter-gatherers form a distinct sub-group among traditional peoples. As observed in previous studies, we find that Treponema are characteristic of traditional gut microbiomes. Moreover, through genome reconstruction (2.2-2.5 MB, coverage depth x26-513) and functional potential …

Amphibian And Small Mammal Assemblages In A Northern Virginia Forest Before And After Defoliation By Gypsy Moths (Lymantria Dispar), Joseph C. Mitchell

Virginia Journal of Science

The introduced European gypsy moth (Lymantria dispar) caused substantial defoliation and mortality of oak trees along the North Fork of Quantico Creek in Prince William Forest Park, Prince William County, Virginia, U.S.A., in 1989 and the early 1990s. Results of a drift fence/pitfall study conducted in 1988 were compared to those obtained from the same technique in the same areas in 1993 to elucidate whether the amphibian and small mammal assemblages had changed over time. Number of Lithobates sylvaticus increased significantly in 1993, but the numbers of Lithobates clamitans and Plethodon cinereus were significantly higher in 1988. Total …

Research Agenda Into Human-Intelligence/Machine-Intelligence Governance, Teddy Steven Cotter

Engineering Management & Systems Engineering Faculty Publications

Since the birth of modern artificial intelligence (AI) at the 1956 Dartmouth Conference, the AI community has pursued modeling and coding of human intelligence into AI reasoning processes (HI Þ MI). The Dartmouth Conference's fundamental assertion was that every aspect of human learning and intelligence could be so precisely described that it could be simulated in AI. With the exception of knowledge specific areas (such as IBM's Big Blue and a few others), sixty years later the AI community is not close to coding global human intelligence into AI. In parallel, the knowledge management (KM) community has pursued understanding of …

Life-History Aspects Of Moxostoma Cervinum (Blacktip Jumprock) In The Roanoke River, Virginia, Dezarai A. Thompson, John S. Bentley, Steven L. Powers

Virginia Journal of Science

Life-history aspects of Moxostoma cervinum(Blacktip Jumprock) were identified using specimens from recent collections and the Roanoke College Ichthyological Collection. The largest specimen examined was a female 161.27 mm SL and 66 months of age. Spawning appears to occur in May, with a mean of 2477.6 oocytes (SD = 2825.3) up to 1.54 mm diameter in gravid females. Sexual maturity appears to occur by 1-2 years of age in males and 2-3 years of age in females. Male to female ratio was not significantly different from 1:1. Chironomidae composed the bulk of the diet; while detritus, Trichoptera, Ephemeroptera, and Acari …

Pesticide Analysis In Vegetables Using Quechers Extraction And Colorimetric Detection, D. S. G. Neufeld, N. Åkerson, D. Barahona

Virginia Journal of Science

A novel combination of extraction and detection methods is demonstrated for pesticide residue analysis in vegetable samples. Acetylcholinesterase (AChE) inhibition was used as a simple colorimetric test for organophosphates/carbamates (OP/C), and was tested with extracts from the widely-used QuEChERS extraction method. In the absence of pesticide, diluted (50% with water) acetonitrile did not inhibit enzyme activity, demonstrating the compatibility of this extraction solvent with the AChE inhibition test. QuEChERS extraction of chlorpyrifos-spiked tomato, spinach and lettuce samples indicated a high sensitivity to OP/C, with AChE inhibition occurring in the ppb range. The applicability of this method combination was tested by …

Virginia Academy Of Science, 2015 Fall Undergraduate Research Meeting And Undergraduate Research Grants Awarded

Virginia Journal of Science

Information about the Fall 2015 Undergraduate Meeting of the Virginia Academy of Sciences. Includes information about the Undergraduate Research Grant recipients and their projects.

Moving Beyond Cardio: The Value Of Resistance Training, Balance Training, And Other Forms Of Exercise In The Management Of Diabetes, Marni J. Armstrong, Sheri R. Colberg, Ronald J. Sigal

Human Movement Studies & Special Education Faculty Publications

Traditionally, aerobic training has been a central focus of exercise promotion for diabetes management. However, people with diabetes have much to gain from other forms of exercise. This article reviews the evidence and recommendations on resistance, balance, and flexibility training, as well as other, less traditional, forms of exercise such as yoga and Tai Chi.

Introduction To Fifth Special Issue On Electroporation-Based Technologies And Treatments, Damijan Miklavčič, Lluis M. Mir, P. Thomas Vernier

Bioelectrics Publications

This special issue of the Journal of Membrane Biology contains reports on recent developments in the field of electroporation by participants in the International Workshop and Postgraduate Course on Electroporation-Based Technologies and Treatments held in November 2014 in Ljubljana. This was the eighth session of what is now an annual event, first organized in 2003.

Reply To Letter To The Editor, "Response To Medical Students' Attitudes Towards Female Sex Workers", Jenna T. Nakagawa, Muge Akpinar-Elci

Community & Environmental Health Faculty Publications

No abstract provided.

Caribbean Heat Threatens Health, Well-Being, And The Future Of Humanity, Cheryl C. Macpherson, Muge Akpinar-Elci

Community & Environmental Health Faculty Publications

Climate change has substantial impacts on public health and safety, disease risks and the provision of health care, with the poor being particularly disadvantaged. Management of the associated health risks and changing health service requirements requires adequate responses at local levels. Health-care providers are central to these responses. While climate change raises ethical questions about its causes, impacts and social justice, medicine and bioethics typically focus on individual patients and research participants rather than these broader issues. We broaden this focus by examining awareness among health-care providers in the Caribbean region, where geographic and socioeconomic features pose particular vulnerabilities to …

Measurement Of 8-Oxo-7, 8-Dihydro-2' Deoxyguanosine In Human Semen And Urine By Isotope-Dilution Liquid Chromatography-Tandem Mass Spectrometry With On-Line Solid Phase Extraction: Comparison With A Commercial Available Enzyme-Linked Immunosorbent Assay, Hueiwang A. Jeng, Mu R. Chao, Ruei N. Li, Chih H. Pan, Wen Y. Lin

Community & Environmental Health Faculty Publications

This study aimed to assess the correlation between 8-oxo-7,8-dihydro-2’-deoxyguanosine (8-oxo-dGuo) in semen and urine, and to compare the analytical methods of the isotope-diluted liquid chromatograph-tandem mass spectrometry (LC-MS/MS) coupled with an on-line Solid-Phase Extraction (SPE) and commercial Enzyme- Linked Immunosorbent Assay (ELISA) used for detecting 8-oxo-dGuo as an oxidative DNA damage marker. Semen and urine samples were simultaneously collected from 85 apparently healthy human subjects. An optimized DNA extraction method was employed to extract DNA from sperm while minimizing oxidation of DNA. All of the biological samples were analyzed by LC-MS/MS and ELISA. All of the biological samples were detected …

Mechanisms Of Nanosecond Pulsed Electric Field (Nspef)-Induced Cell Death In Cells And Tumors, Stephen J. Beebe

Bioelectrics Publications

The evolution of pulse power technology from high power physics to biology and medicine places nanosecond pulsed electric fields (nsPEFs) in positions for in vitro and in vivo applications as non-ligand agonists that not only bypass plasma membrane receptors for induction of intracellular signaling pathways, but also bypass intracellular oncogenic impasses to induce cell death by regulated mechanisms. Based on work reviewed here, a likely scenario for cell and tumor demise includes nsPEF-induced permeabilization of the plasma membrane, Ca2+ influx, dissipation of the mitochondrial membrane potential, which is likely due to events beyond permeabilization of the inner mitochondrial membrane, cytochrome …

Electroporation Of Mammalian Cells By Nanosecond Electric Field Oscillations And It's Inhibition By The Electric Field Reversal, Elena C. Gianulis, Jimo Lee, Chunqi Jiang, Shu Xiao, Bennet L. Ibey, Andrei G. Pakhomov

Bioelectrics Publications

The present study compared electroporation efficiency of bipolar and unipolar nanosecond electric field oscillations (NEFO). Bipolar NEFO was a damped sine wave with 140 ns first phase duration at 50% height; the peak amplitude of phases 2-4 decreased to 35%, 12%, and 7% of the first phase. This waveform was rectified to produce unipolar NEFO by cutting off phases 2 and 4. Membrane permeabilization was quantified in CHO and GH₃ cells by uptake of a membrane integrity marker dye YO-PRO-1 (YP) and by the membrane conductance increase measured by patch clamp. For treatments with 1-20 unipolar NEFO, at 9.6-24 …