Digital Commons Network^™

Physicians, Society, And The Science Fiction Genre In The Film Versions Of Invasion Of The Body Snatchers: Or Doctors With A Serious Pod Complex, Brett S. Stifflemire

Theses and Dissertations

Close textual analysis of the four extant film versions of Invasion of the Body Snatchers reveals that each film modifies the original story such that it reflects changing societal attitudes toward physicians and the medical profession, as well as depictions of military and government in the science fiction genre. The changing depictions of characters and events in these films respond to changes in medical history, social history, and the science fiction genre across five decades. Each film reflects the contemporary anxieties of its time and the perceived ability of physicians to relieve those anxieties. Doctors are important semantic elements of …

Positive Versus Negative Neuroimaging In Mild Traumatic Brain Injury Outcome: A Meta-Analysis, Thomas Jeffrey Farrer

Theses and Dissertations

Mild Traumatic Brain Injury (mTBI) can be broken into two categories; complicated and uncomplicated. These categories are based on structural imaging scans during the assessment of the injury. If abnormalities appear in the scan, we refer to it as complicated. The present research aims at determining whether there are differences in the neuropsychological deficits in the presences of positive neuroimaging as opposed to negative neuroimaging. This was accomplished with meta-analytic techniques. It was found that neuroimaging does not predict neuropsychological functioning in the chronic state of mTBI.

Levinas, Meaning, And Philosophy Of Social Science: From Ethical Metaphysics To Ontology And Epistemology, Samuel David Downs

Theses and Dissertations

The current approach to science for mainstream psychology relies on the philosophical foundation of positivism that cannot account for meaning as humans experience it. Phenomenology provides an alternative scientific approach in which meaning is constituted by acting toward objects in the world that is more consistent with how humans experience meaning. Immanuel Levinas argues that the phenomenological approach, while more consistent with human experience, does not provide a grounding for meaning. Rather, Levinas argues that meaning is grounded in the ethical encounter with the Other, or other person, such that meaning is given by the Other in rupture. For Levinas, …

Community Response To False Hellebore (Veratrum Californicum Durand) Harvest 18 Years After Treatment, Craig Douglas Johnson

Theses and Dissertations

Discoveries revolving around false hellebore (Veratrum californicum Durand) have caused a paradigm shift in treatment from eradication to harvest and preservation. Test plots set in place 18 years ago to analyze the effectiveness of eradication treatments (tilling, herbicide, mow, and remow) give us a better idea of how false hellebore communities might respond to disturbances caused by harvest. We focused mainly on the tilling, mow, and remow treatments because of similarities to harvest techniques.We found that mow and remow treatments have little effect on the population of false hellebore in the wild. Tilling treatments were effective in reducing …

Impedance Imaging And Measurements By Micro Probes In Aqueous Environments, Tao Shang

Theses and Dissertations

The dissertation presented here describes two research projects that may, at first glance, seem unrelated. Their unifying principle is the measurement of electrical impedance for the detection and analysis of biological materials. Impedance measurements have long been employed and studied in scientific fields, and the dissertation begins with a summary of historical methodology, applications, and terminology. Utilizing impedance measurements for microscopic imaging is the driving motivation for Scanning Impedance Imaging (SII). This technique manifests the distribution of electrical impedance inside biological tissues and is described after the dissertation's introduction. SII can provide micron-scale imaging resolution by scanning a shielded microprobe …

Does Electroacupuncture Affect Ethanol Modulation Of Mesolimbic Neurons?, Jung Jae Park

Theses and Dissertations

The purpose of this project was to investigate the mechanism of action of acupuncture on a critical neural substrate involved in alcoholism. Specifically, this study evaluated the effects of stimulation of the acupuncture Shenmen (HT7) point on inhibitory GABA neurons in the ventral tegmental area (VTA), a midbrain structure implicated in drug and alcohol abuse, and ethanol self-administration. In addition, the role of opioid receptors (ORs) in ethanol and acupuncture effects was explored. Using electrophysiological methods in mature rats, we evaluated the effects of HT7 stimulation and opioid antagonists on the VTA GABA neuron firing rate. With behavioral paradigms, we …

Reinventing The Colonial Fantasy In The Post-Wwii Era: Jovita Epp's Amado Mio, Ivana R. Klammer

Theses and Dissertations

Austrian playwright Jovita Epp's German language novel Amado mí­o, which takes place in post-WWII Argentina, is a modern adaptation of the traditional colonial novel. As such, the romances between the female main character, an Argentine of German descent, and her two love interests, an Argentine of Spanish descent (Criollo), and an Austrian Argentine, reflect the hopes and fears of persons and/or cultures caught up in the imperialist dreams of their nation. In the wake of WWII, Argentina becomes a space in which European(-descended) settlers can look back at Europe's "barbarism," questioning the imperialist worldviews that brought Europe …

The Dirt On The Ancient Maya: Soil Chemical Investigations Of Ancient Maya Marketplaces, Daniel Aaron Bair

Theses and Dissertations

Various criteria or lines of evidence have been used to identify ancient Maya marketplaces, including location near trade routes, artifactual evidence of trade, open space adjacent to transportation routes, proximity to public structures, low platforms and rock alignments to denote market spaces, and regular patterns in soil and floor chemical concentrations. Seibal and Mayapán were important economic Maya polities controlling the trade routes at the apex of their civilizations. The objectives of these studies were to apply geochemical and geospatial analyses of the soils and floors from public plazas and household patios, to discover the anthropogenic chemical residues of phosphorus …

Empirical Study Of Information Design: Four Experiments, Noel Teresa Alton

Theses and Dissertations

Current design theory sets out many rules and guidelines for designers, but good design is still difficult to replicate. Often the design principles found in the manuals are misapplied, resulting in designs that (1) do not fulfill their purpose and (2) disrupt the clarity of information. This thesis will review and provide experimental data supporting a model of visual form/visual purpose connections based on the semiotic of C.S. Peirce. This model was first used by Amare and Manning (2005, 2006, 2007, 2008, 2009) to evaluate and explain both effective and ineffective visual information design. This thesis will extend their approach, …

Multidisciplinary Assessment And Documentation Of Past And Present Human Impacts On The Neotropical Forests Of Petén, Guatemala, Christopher Stephen Balzotti

Theses and Dissertations

Tropical forests provide important habitat for a tremendous diversity of plant and animal species. However, limitations in measuring and monitoring the structure and function of tropical forests has caused these systems to remain poorly understood. Remote-sensing technology has provided a powerful tool for quantification of structural patterns and associating these with resource use. Satellite and aerial platforms can be used to collect remotely sensed images of tropical forests that can be applied to ecological research and management. Chapter 1 of this article highlights the resources available for tropical forest remote sensing and presents a case-study that demonstrates its application to …

Comparison Of Adoptive Vs. Biological Mother-Infant Relationships In Nonhuman Primates, Rachel Ann Bogh

Theses and Dissertations

Studies suggest that adoptees are at risk for a number of psychopathological behaviors. To understand the etiology of this risk, 150 socially housed rhesus macaques were studied, including 107 infants reared with their biological mothers and 43 infants reared with unrelated adoptive mothers. Mother-infant behaviors were recorded across the first 6 months of life. Analyses were performed using a hierarchical linear mixed model. All reported results were tested at p<0.05. Adopted infants were observed on average to approach and leave their mothers more frequently, explore the environment and locomote longer, exhibit more anxiety-like behavior, spend less time being held to their mother's breast, and were rejected by their mothers more when compared to nonadopted infants, indicating they are more likely responsible for maintaining the relationship. They also direct and receive more noncontact aggression on average to other social group members, and showed evidence of higher anxiety exhibiting high levels of anxiety-like self-directed behavior when compared to nonadopted infants. Also, results indicate that adopted infants have significantly lower levels of the CSF serotonin metabolites 5-hydroxyindoleacetic acid when compared to nonadopted infants.

Investigation Of Potential Trapping Bias In Malaise Traps Due To Mesh Gauge, In Two Habitats, David Jensen Betts

Theses and Dissertations

Malaise traps are a common tool for collecting insects used by many researchers. Although there have been variations in the models and materials used for Malaise traps, the potential for sampling bias due to mesh gague has been explored inadequately. This study compared coarse and fine mesh Townes model Malaise traps in two habitats on the Grand Staircase-Escalante National Monument. The two habitats next to the Lick Wash trailhead were defined by dominant vegetation type – sagebrush and grasses or Piñon-Juniper. We collected from three sites per habitat type, over three consecutive days in June in both 2006 and 2007. …

Pollen Evidence Of Historical Forest Disturbance On The Wasatch Plateau, Utah, Jesse L. Morris, Andrea R. Brunelle, A. Steven Munson

Western North American Naturalist

Environmental indicators from lake sediments provide excellent opportunities to improve understanding of forest disturbance processes and corresponding changes in forest composition. Our research provides a methodology for assessing recent, historic, and prehistoric disturbances using lacustrine sediment records. We collected sediment cores from Blue Lake, a small subalpine lake on the Wasatch Plateau in central Utah. These cores record environmental changes caused by both spruce beetle (Dendroctonus rufipennis Kirby) and human (logging and livestock grazing) modification. We observed deteriorated insect remains in the lake sediments. These remains correspond temporally with a historic spruce beetle outbreak, though alkaline conditions in the …

Daily And Seasonal Patterns Of Activity At Pygmy Rabbit Burrows In Utah, Janet E. Lee, Randy T. Larsen, Jerran T. Flinders, Dennis L. Eggett

Western North American Naturalist

The pygmy rabbit (Brachylagus idahoensis) is a secretive, obligate sagebrush-steppe resident of the Intermountain West and is one of two rabbits in North America that digs its own burrows. Although the pygmy rabbit has a recorded home range of 0.21–67.9 ha in relatively high sagebrush cover (21%–36%), they spend much of their time within 30–100 m of a burrow system. Due to big sagebrush cover in preferred habitat and the secretive behavior of pygmy rabbits, it is often difficult to study this leporid through direct observation. We used remote cameras to document pygmy rabbit activity at burrow systems …

Mineral Lick Use By Gps Radio-Collared Mountain Goats In Southeastern British Columbia, Kim G. Poole, Karl D. Bachmann, Irene E. Teske

Western North American Naturalist

In most populations of mountain goats (Oreamnos americanus), mineral lick use is an essential part of the ecology of the species. In many areas, the distribution and use of licks in the landscape is poorly known, rendering planning for resource development difficult. We examined lick use by 28 GPS radio-collared mountain goats in 2 study areas in southeastern British Columbia during 2004–2005. Viewing collar-location movements on digital orthophotos, we assumed goat use of 6 previously known and 10 suspected mineral licks. Field visits verified that 9 of the 10 suspected sites were mineral licks. Thirteen of the 15 …

Efficacy Of Using Passive Integrated Transponder Technology To Track Individual Shorthead Sculpins, Donald W. Zaroban, Steven M. Anglea

Western North American Naturalist

We evaluated the feasibility of using passive integrated transponder (PIT) tags to mark and track individual shorthead sculpins (Cottus confusus). We implanted PIT tags in 80 shorthead sculpins in 2 size categories (60–80 mm and 81–106 mm total length) and in 1 of 2 locations (subcutaneous along the spinous dorsal fin or in the body cavity). We evaluated tag retention, sculpin survival, and net-avoidance behavior for 29 days. We observed no mortality directly attributable to PIT-tag injection at either tagging location. We observed a 38.8% loss rate of dorsal tags and a 2.5% loss rate of body-cavity tags. …

Nighttime Aboveground Movements By Prairie Dogs On Colonies Inhabited By Black-Footed Ferrets, David A. Eads, Jennifer G. Chipault, Dean E. Biggins, Travis M. Livieri, Joshua J. Millspaugh

Western North American Naturalist

We describe observations of black-tailed prairie dogs (Cynomys ludovicianus) emerging aboveground at night, apparently in response to wild-born and captive-born black-footed ferrets (Mustela nigripes) in South Dakota and New Mexico, respectively. We also discuss other similar observations accumulated on black-tailed prairie dog colonies as well as observations of white-tailed prairie dogs (Cynomys leucurus) making nighttime movements, apparently in response to pre-reintroduction ferrets in Wyoming. Our observations suggest that, in addition to documented daytime defenses against ferrets, prairie dogs reduce vulnerability to predation by ferrets by using evasive movements at night.

Synthesis Of Glycolipids And Evaluation Of Their Nkt Cell Stimulatory Properties, Yang Liu

Theses and Dissertations

Natural killer T (NKT) cells are a subset of T cells that modify a variety of immune responses. NKT cells recognize glycolipid antigen presented by a molecule called CD1d, a nonclassical antigen-presenting molecule. The best known subset of CD1d-dependent NKT cells expresses an invariant T cell receptor Vα (TCR-α) chain. These are referred to as type I or invariant NKT (iNKT) cells. When stimulated by a glycolipid, NKT cells rapidly release large amounts of cytokines. Cytokines released by NKT cells can induce either Th1 or Th2 responses. Th1 cytokines are effective in regulating bacterial, parasitic, and viral infections. But Th1 …

State Regulation Of Assisted Reproductive Technology, Jonathan J. Morgan

Theses and Dissertations

State regulation of assisted reproductive technology (ART) has been occurring since the inception of earlier technological advances such as artificial insemination to aid human reproduction. I provide a brief overview of the current regulation of ART in the U.S. and the literature on state regulation. Unlike previous studies of ART regulation which use content analysis or case studies of individual state laws I estimate ART regulation for the entire U.S. by using a series of random effects logistic regression models for the time period 1995-2006. To my knowledge this is the first quantitative analysis of ART regulation. I test the …

Developmental Contributions To Variation In Aspen Clones And The Influence Of Pre-Fire Succession Status On Aspen Regeneration Success, Eric A. Smith

Theses and Dissertations

This thesis includes two studies: The first examined developmental changes that take place in the physiology of aspen (Populus tremuloides Michx.) and to characterize developmental influences on patterns of phenotypic trait variation among different aged ramets within the aspen clones. We surveyed eight clones, each with 8 distinct age classes ranging from 1 to 170 yrs in age. Using regression analysis we examined the relationships between ramet age and expression of functional phenotypes. Eight of the phenotypic traits demonstrated a non-linear relationship in which large changes in phenotype occurred in the early stages of ramet development and stabilized thereafter. …

Factors Influencing The Frequency Of Nest Parasitism By Brown-Headed Cowbirds In The Northern Sierra Nevada, Kathi L. Borgmann, Michael L. Morrison

Western North American Naturalist

Nest parasitism by Brown-headed Cowbirds (Molothrus ater) can negatively affect host populations. Landscape-scale factors, such as proximity to residential areas, equestrian riding stables, and grazing allotments, can affect the risk of nest parasitism as well as the abundance of Brown-headed Cowbirds. Recent increases in residential and recreational development along with a reduction in grazing allotments in the northern Sierra Nevada provide an opportunity to reevaluate factors that influence frequency of nest parasitism by Brown-headed Cowbirds. Frequency of nest parasitism increased as the distance to the nearest residential center and distance to the nearest equestrian riding stable decreased. Similarly, …

Evaluation Of Brood Detection Techniques: Recommendations For Estimating Greater Sage-Grouse Productivity, David K. Dahlgren, Terry A. Messmer, Eric T. Thacker, Michael R. Guttery

Western North American Naturalist

Obtaining timely and accurate assessment of sage-grouse (Centrocercus spp.) chick survival and recruitment is an important component of species management and conservation. We compared the effectiveness of walking, spotlight, and pointing-dog surveys to detect radio-marked and unmarked chicks within broods of radio-marked hens in Utah. Walking surveys detected 72% of marked chicks, while spotlight and pointing-dog surveys detected 100% and 96%, respectively. We found no difference between spotlight and pointing-dog counts in number of marked and unmarked chicks detected (P = 0.57). Spotlight counts were slightly more time efficient than pointing-dog surveys. However, spotlight surveys were nocturnal searches …

Observations Of Reproduction In Mountain Lions From Nebraska, Sam Wilson, Justin D. Hoffman, Hugh H. Genoways

Western North American Naturalist

Occurrences of mountain lions (Puma concolor) in Nebraska have been steadily increasing; however, reproductive activity in mountain lions has not been documented in the state. We present the first evidence of mountain lion reproduction in Nebraska since mountain lions recolonized the state in the early 1990s. On 28 February 2007, a spotted kitten was hit by a vehicle in northwestern Nebraska; and based on body length and weight, we estimate its age at 3.9 months. On 20 December 2008, a female mountain lion and spotted kitten were photographed in the northwestern part of the state. On 9 May …

Climbing As An Escape Behavior In The American Hog-Nosed Skunk, Conepatus Leuconotus, Wesley B. Brashear, Robert C. Dowler, Gerardo Ceballos

Western North American Naturalist

Climbing behavior is poorly documented in skunk species, with the exception of the genus Spilogale. Herein we describe 2 cases of climbing behavior in the American hog-nosed skunk (Conepatus leuconotus): one in Colima, Mexico, and another in west central Texas, USA. In both cases, a male climbed over 5 m into oak trees when pursued by humans. Climbing as an escape behavior in hog-nosed skunks has not previously been reported.

Field Guide To The Beetles Of California By Arthur V. Evans And James N. Hogue, Richard S. Zack

Western North American Naturalist

No abstract provided.

Sport As Art: The Female Athlete In French Literature, Christina Ann Tsaturyan

Theses and Dissertations

The modern conception of organized, codified sport originated in Europe during the 19th century. At this time, instructors began to institute the practice of certain physical activities at school as a means of teaching morals, forming character, and initiating social exchange. Sport is particularly appropriate for forming men because of its public, physical nature. The values it instills—courage, strength, leadership—are also decidedly masculine. What, then, is made of the female athlete? Are the noble qualities that sports affirm inapplicable to women? In this thesis, I argue that female participation in sports often leads to masculinization, unless the sport is transformed …

« Pour La Patrie, Par La Montagne » : Illustration De L’Imaginaire De La Conquête Dans Tartarin Sur Les Alpes D’Alphonse Daudet Et Là-Haut D’Édouard Rod, Anabelle Stephania Selway

Theses and Dissertations

La période 1870-1914 est une ère de paix relative pour la France. Apres la défaite de 1870, la politique revancharde française ranime les efforts impérialistes de colonisation en Afrique et dans les iles. Cet élan colonialiste se traduit dans la pratique du sport qui gagne de popularité et devient le moyen idéal d’acheminer les idéaux républicains. L’alpinisme et la course aux sommets des Alpes deviennent alors symboliques de l’imaginaire de conquête présent dans l’esprit de la bourgeoisie européenne.

Bien que ce phénomène soit l’objet de plusieurs études historico-culturelles, telles que celles d’Olivier Hoibian, Philippe Joutard et Dominique Lejeune, rares sont …

Wireless Sensor Network Approach To Aeronautical Telemetry, Oluwasegun Babatunde Tinubi

Theses and Dissertations

Wireless sensor networks have become a rapidly growing research field in recent years. They are envisioned to have a wide range of applications in military, environmental and many other fields. We examine the performance of wireless sensor network applications to aeronautical telemetry. To date, test ranges have relied on a single telemetry ground station for the reception of packets from all air borne transmitters. We researched an alternate means of achieving this same goal with fewer resources. It is a well known fact that communication power and bandwidth are the most expensive commodities in wireless communications. The telemetry world is …

Modeling, Design, And Testing Of Contact-Aided Compliant Mechanisms In Spinal Arthroplasty, Peter Andrew Halverson

Theses and Dissertations

Injury, instrumentation, or surgery may change the functional biomechanics of the spine. Spinal fusion, the current surgical treatment of choice, stabilizes the spine by rigid fixation, reducing spinal mobility at the cost of increased stress at adjacent levels. Recently, alternatives to spinal fusion have been investigated. One such alternative is total disc replacements. The current generation of total disc replacements (TDRs) focuses on restoring the quantity of motion. Recent studies indicate that the moment-rotation response and axis of rotation, or quality of motion (QOM), may have important implications in the health of adjacent segments as well as the health of …

The Relationship Between Attachment Related Family-Of-Origin Experiences And Sexual Satisfaction In Married Couples, James G. Strait

Theses and Dissertations

This study of married couples examined the relationship between perceptions of attachment related family-of-origin experiences and sexual satisfaction directly and when mediated by marital quality. The sample consisted of 3,953 married couples who responded to the RELATionship Evaluation (RELATE). The nested model showed that more positive overall family-of-origin experiences and parent-child relationships were related to higher sexual satisfaction. When adding marital quality as a mediator, overall family-of-origin experience and the parent-child relationship were predictive of higher sexual satisfaction when mediated by marital quality but removed most direct effects to sexual satisfaction. There was a strong positive relationship between marital quality …