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Investigation Of Variability In Cognitive State Assessment Based On Electroencephalogram-Derived Features, Samantha Lokelani Crossen

Browse all Theses and Dissertations

To implement adaptive aiding in modern aviation systems there is a need for accurate and reliable classification of cognitive workload. Using electroencephalogram (EEG)-derived features, it has been reported that an Artificial Neural Network (ANN) can achieve 95% or higher classification accuracy on the same day for an individual operator, but only 70% or less on a different day. To gain a further insight into this discrepancy, data from a previous study was utilized to study the classification variability. The EEG-derived features were first calculated by spectral power estimation. The variability was then analyzed by performing cognitive workload classification in which …

Dietary Selenium Affects Host Selenoproteome Expression By Influencing The Gut Microbiota, Marina V. Kasaikina, Marina A. Kravtsova, Byung Cheon Lee, Javier Seravalli, Daniel A. Peterson, Jens Walter, Ryan Legge, Andrew K. Benson, Dolph L. Hatfield, Vadim Gladyshev

Department of Food Science and Technology: Faculty Publications

Colonization of the gastrointestinal tract and composition of the microbiota may be influenced by components of the diet, including trace elements. To understand how selenium regulates the intestinal microflora, we used high-throughput sequencing to examine the composition of gut microbiota of mice maintained on selenium-deficient, selenium-sufficient, and selenium-enriched diets. The microbiota diversity increased as a result of selenium in the diet. Specific phylotypes showed differential effects of selenium, even within a genus, implying that selenium had unique effects across microbial taxa. Conventionalized germfree mice subjected to selenium diets gave similar results and showed an increased diversity of the bacterial population …

An Investigation Of The Effects Of Cognitive Apprenticeship Within A Simulation-Based Learning Environment On Emergency Medical Technician (Emt) Students' Development Of Diagnostic Reasoning Skills, Sherman A. Syverson

Theses and Dissertations

No abstract provided.

Music, Mood, And Memory: An In-Depth Look At How Music Can Be Used As A Trigger To Elicit Specific Emotional Responses And Associated Memories, Jennifer Lynn Stubing

Honors Theses - Providence Campus

No matter how humans have evolved over the years, no matter how different the cultures or customs are across seas, every race in the history of humankind has had music. Music and emotions have been intertwined throughout history. While short-term memories are fleeting, it is theorized that music has the potential to become a long-term memory after just one hearing (Eschrich 48).

Music, memories, and emotions have all been proven to intertwine, yet not much research has demonstrated the interrelation of all three. Musicology focuses on the connection between the human psyche and music. The most common use of music …

Role Of The Cardiomyocyte Circadian Clock In Modulating Myocardial Physiology And Pathophysiology, David Joseph Durgan

All ETDs from UAB

It is well established that multiple parameters of cardiovascular physiology and pathophysiology exhibit diurnal variations. For example, human heart rate and blood pressure peak during the morning and trough in the evening. Similarly, there is a morning prevalence for the onset of multiple adverse cardiovascular events, including myocardial ischemia, arrhythmias, and sudden cardiac death. Traditionally these rhythms have been attributed to rhythms in neurohumoral stimulation. However recent identification of the circadian clock mechanism in cardiovascular relevant cell types, including the cardiomyocyte, has prompted investigation into its role in modulating myocardial physiology and pathophysiology over the course of the day. Preliminary …

Probing The Trans-Sialidase Activity Of The Neuraminidase Derived From Human Influenza A (H3n2) Virus, Eva Kalemera Aluvaala

All Master’s Theses

Sialo-oligosaccharides are found on the distal ends of glycans present on mammalian cell surfaces. They play major roles in cell growth, function, and are determinants of many disease states. Due to the important physiological role of glycoconjugates, there has been increased focus towards the development of drugs and vaccines that are carbohydrate based. Sialo-oligosaccharides can be synthesized through chemical means or by use of enzymes. Enzymes are preferred in the synthesis process as they are cheaper, faster and capable of catalyzing the synthesis of molecules with the correct specificity. These being the case enzymes with activities capable of synthesizing glycoconjugates …

Abstention To Consumption: The Development Of American Vegetarianism, 1817-1917, Adam Daniel Shprintzen

Dissertations

The history of vegetarianism in the United States has long been shrouded in myth, assumption and obfuscation. Vegetarianism as a vital ideological and political movement has often been presented--even by its proponents--as a product of twentieth century modernism, reflecting a rise in ethical consumer awareness. The historical record of the nineteenth century, however, tells a very different story. The notion that dietary choices could be connected with larger social and political goals was formulated during, and changed dramatically in the nineteenth century. This dissertation charts the rise and evolution of vegetarianism in the United States from 1817 until 1917.

This …

Gestalt Biometrics And Their Applications; Instrumentation, Objectivity And Poetics, Hannah Drayson

Other Faculty of Arts, Humanities and Business Theses

This thesis is about the relationship between human bodies and instrumental technologies that can be use to measure them. It adopts the position that instruments are technological structures that evoke and manifest particular phenomena of embodied life. However, through their history of association and use in the sciences and scientific medicine, instruments tend to be attached to a particular ontology, that of mechanical objectivity. Embarking from research into the artistic uses of physiological sensor technology in creative practices such as performance and installation art, this thesis asks whether it is possible to use instruments in a way that departs from …

Bioscience Laboratory: Online And Face-To-Face Laboratory Experiences In Requisite Biosciences For Nursing At A Community College, Deborah K. Folger

Graduate Theses, Dissertations, and Problem Reports (ETD)

The purpose of this study was to analyze student perceptions of the online and face-to-face bioscience laboratory experiences in Anatomy and Physiology and Microbiology. The study took place at a community college in a rural geographic area and data were collected from associate degree seeking first and second year nursing students via a survey questionnaire and student focus groups in addition to archival enrollment and graduate data. The research study was guided by the following questions: What are nursing student perceptions concerning the impact of Anatomy and Physiology and Microbiology bioscience laboratory experiences on the transfer of knowledge to nursing …

The Intrusiveness Of Sensor-Suit Components On The Postures Associated With Performing Repeated Whole-Body Manual Lifting Tasks, Lauren Amanda Visnansky

Graduate Theses, Dissertations, and Problem Reports (ETD)

Ergonomics can be defined as the responsibility to ensure that the demands of a job do not exceed the capabilities of a worker (Garg, Chaffin, and Herrin, 1978). Evaluating physiological demands on workers, particularly individuals performing highly varied tasks or monitoring their work in the field, can be a complex problem. Using on-person sensors to record kinematic and physiological measurements throughout extended is one proposed method by which to collect data necessary to evaluate the demands placed on the workers. In order to assess the efficacy of the data that would be collected, it is critical to evaluate the intrusive …

"Sticky Metaphors" And The Persistence Of The Traditional Voluntary Manslaughter Doctrine, Joseph L. Hoffmann, Elise J. Percy, Steven J. Sherman

Articles by Maurer Faculty

No abstract provided.

Emotional Pain And Acute Nociception, Alison M. Vargovich

Graduate Theses, Dissertations, and Problem Reports (ETD)

This study examined differences and similarities in responses to acute nociception in adults with a significant history of emotional pain relative to matched controls with a significant past positive life experience and a sample of chronic pain patients. Using 28 volunteers who responded to advertisements (n = 14, emotional pain group; n = 14, positive life experience group), and 14 chronic pain patients from a prior study, this investigation utilized measures of pain threshold and tolerance during a laboratory finger pressure pain induction experiment. Each participant experienced two levels of pressure pain (i.e., high and low) and two levels of …

Isolation And Elucidation Of The Chrysomycin Biosynthetic Gene Cluster And Altering The Glycosylation Patterns Of Tetracenomycins And Mithramycin-Pathway Molecules, Stephen Eric Nybo

University of Kentucky Doctoral Dissertations

Natural products occupy a central role as the majority of currently used antibiotic and anticancer agents. Among these are type-II polyketide synthase (PKS)-derived molecules, or polyketides, which are produced by many representatives of the genus Streptomyces. Some type-II polyketides, such as the tetracyclines and the anthracycline doxorubicin, are currently employed as therapeutics. However, several polyketide molecules exhibit promising biological activity, but due to toxic side effects or solubility concerns, remain undeveloped as drugs.

Gilvocarcin V (GV) (topoisomerase II inhibitor) has a novel mechanism of action: [2+2] cycloaddition to thymine residues by the 8-vinyl side chain and cross-linking of histone …

Art And Consciousness In Light Of Maharishi Vedic Science, Natalie Brown

Theses: Doctorates and Masters

This research examines the field of art and consciousness in light of Maharishi Vedic Science. Maharishi Vedic Science is a complete science of consciousness and its expressions, based on ancient Vedic knowledge, as elucidated by His Holiness Maharishi Mahesh Yogi, the foremost scholar in the field of consciousness. The research explores the practical application of Maharishi‘s technologies of consciousness― the Transcendental Meditation program and TM-Sidhi program, and simultaneously the theoretical understanding of consciousness through the study of Maharishi Vedic Science. The research examines this knowledge by considering two questions- Question 1―What is the benefit of the practical technologies and theoretical …

Structural And Functional Insights Of Human 5-Lipoxygenase, Nathaniel Carson Gilbert

LSU Doctoral Dissertations

This work describes the structure of human 5-lipoxygenase (5-LOX) (Gilbert, Bartlett et al. 2011) and the techniques required to ascertain the structure. 5-LOX is a notoriously unstable enzyme with important biological functions. The human 5-LOX has been implicated in many disease states including asthma, atherosclerosis and cancer. Part of 5-LOX biology is the inherent instability of the enzyme, which is thought to help regulate the production of its pro-inflammatory products, the leukotrienes. Our objective was stabilizing the enzyme for in vitro studies without affecting catalytic fidelity. I was able to quantitate stabilizing and destabilizing point mutations of 5-LOX by thermal …

Is The Gallbladder Really Unnecessary? An Evaluation Of Gallstone Treatment, Danielle Weinberg

The Science Journal of the Lander College of Arts and Sciences

The following is the introduction of this article: The red numbers on your alarm read two o’clock AM, but you’re wide awake. A dull ache below your ribs has tossed you from the blissful ignorance of sleep into the painful reality of another nocturnal attack. As the pale streaks of daylight appear, you grit your teeth in agony while the ambulance goes over yet another bump in its rush to get you to the emergency room. A blur of white coats, lab tests, and CT scans, and then you’re staring into the bright lights above the operating table as the …

Health Risks Of Very Low Cholesterol, Menachem Nagar

The Science Journal of the Lander College of Arts and Sciences

Cholesterol is a molecule central to all human physiological processes at systemic as well as cellular levels. Cholesterol, combined with Apolipoprotein B as low-density lipoprotein (LDL) has been the focus of scientific research because the molecule has been proven to play a role in the development of cardiovascular disease, a disease of pandemic proportions. Considerable scientific and medical attention has been devoted to identifying the role and management of high levels of total serum cholesterol in order to address this global health burden, creating large scale awareness regarding lowering cholesterol concentration in circulation. However, the same molecule, combined into various …