Digital Commons Network^™

The Biomechanics And Evolution Of Air-Breathing In Anuran Tadpoles, Jackson Phillips

Master's Theses

The fact that tadpoles breathe air is an oft over-looked aspect of anuran biology. The air-breathing behavior of small tadpoles is particularly interesting, as they are not large enough to overcome the physical constraints imposed by surface tension. Instead of breaching the water’s surface to access air, small tadpoles perform “bubble-sucking”, a breathing mode that circumvents the need to breach the water’s surface tension. In my first chapter, I find that Hyla versicolor (Anura: Hylidae) tadpoles are bubble-sucking specialists that perform both the typical, single bubble-suck seen in other tadpole species as well as an undescribed, double bubble-suck. A combination …

1-Norm Support Vector Machine On Single-Trial Eeg And Ecg Data To Identify Neural Oscillatory Features In The Ketamine Model For Schizophrenia, Xiao Yang

Master's Theses

Ketamine provides a useful model for studying the physiopathology of schizophrenia as it induces and exacerbates schizophrenic symptoms in healthy individuals and patients, respectively. However, it remains unclear how ketamine affects neural oscillations across frequency bands and the extent to which changes in cortical firing are independent from ketamine’s cardiovascular effects. The present study used 1-norm support vector machine (SVM) as a classification approach to determine sources of psychophysiological signal, considering both EEG and ECG, characterizing primary effects of ketamine administration. EEG and ECG recordings of 11 participants were collected before (saline) and after the ketamine (0.5 mg/kg) intravenous infusion …

Continuity And Variability In Lithic Use During The Woodland Period In Coastal Southern New England: The View From The Laurel Beach Ii Site, Daniel Zoto

Master's Theses

No abstract provided.

See The Forest For The Leaves: Foliar Fungal Community Composition And Volatile Organic Compound Production, Joshua Copeland

Master's Theses

Endophytes are microbes that live within plants without causing detectable illness. These microorganisms can emit volatile organic compounds (VOCs), airborne signaling molecules that can significantly affect plant growth. Despite the prevalence of endophytes and their VOCs, little is known about these factors important to plant health. With this in mind I isolated fungal endophytes from leaves of Populus trichocarpa and Populus fremontii, tree species with economic and environmental uses, to determine if endophyte communities are reserved between the closely related tree species and over seasons. Surface sterilized leaf fragments were plated onto malt extract agar and the resulting fungi were …

“Flowing Along The Wall”: Anarcha-Feminist Bioethics And Resistance In Octavia E. Butler’S Dawn 2019., Theresa Mendez

Master's Theses

Science fiction (sf) texts conversant with the temporal play between past, present, and future push readers to imagine the extremes of human and environmental existence, interaction, and potential. Simultaneously, despite the sf genre’s tendency to traffic in extremes, these texts provoke readers to consider the ways in which these imagined worlds are grounded in history as well as in the contemporary social moment. As Donna Haraway has argued, “the boundary between science fiction and social reality is an optical illusion” (306). This illusory boundary must continue to be traversed in order to consider how sf literatures, particularly those which imagine …

Posthuman And Alien Breeding: The Implications Of Cybersex In Octavia Butler’S Dawn 2019., Elizabeth Rutkowski

Master's Theses

Speculative science fiction affords new ways for authors to represent social problems of the modern day in an apocalyptic manner. Authors such as Octavia Butler use science fiction to analyze social injustices revolving around race, gender, and sexuality. Throughout her novel Dawn, Butler uses the posthuman to represent minority groups in the late twentieth century. The posthuman represents those who have moved from humanity towards a new opportunity that is mixed with the potential for struggle. 1 As demonstrated through Butler’s work posthumanism blurs the lines between binaries such as male / female, straight / gay, and consensual / nonconsensual …

Nekton Usage Of High Marsh Habitats In Connecticut Salt Marshes, With Emphasis On The Genus Fundulus, Amanda L. Tucker

Master's Theses

Large scale habitat use patterns of salt marsh nekton are fairly well understood, but small-scale patterns within marsh habitats are not as well known, including the genus Fundulus, an important salt marsh species. This is an area of study that needs more research, particularly in light of increases in salt marshes loss within the last several decades. Salt marshes are a primary habitat for Fundulus species. Sea level rise and urbanization have been major contributors to salt marsh loss and alteration.

Salt marshes are highly variable habitats both spatially and temporally due to tidal cycles, high and low marsh areas …

A Machine Learning Technology For Rapid Detection Of Carbon Nanotubes/Dna Hybridization In Biosensor Healthcare Applications, Steven K. Ang

Master's Theses

In molecular biology, the term “DNA hybridization” generally refers to the process of forming a double stranded nucleic acid from joining two complementary strands of DNA. The degree of genetic similarity of the DNA resulting from hybridization can be detected ei ther by using the chemical characteristics of DNA samples or by utilizing reliable biosensors which transform the chemical characteristics into a source of electrical measurements. In past research about such sensors, known as DNA Hybridization Detection Systems, the thermal and electrical characteristics of carbon nanotubes are utilized to detect whether hybridization takes place or not. However, human interpretation of …

Characterizing Vegetative Communities Across The Salt Marsh To Upland Ecotone In Connecticut: Indications Of Tidal Inundation Stress In The High Marsh, Matthew J. Ormrod

Master's Theses

The viability of Connecticut’s future salt marshes remains uncertain as pressure from multiple anthropogenic stressors and accelerated relative sea level rise continue to undermine the dynamic ecogeomorphic mechanisms that allow these landscapes to persist in times of environmental change. Observed rates of relative sea level rise in the Long Island Sound estuary appear to be accelerating since recording began in the early 1930s. Furthermore, as much as 90% of the land parcels expected to undergo habitat change as marine ecosystems migrate landward are privately owned and managed. This finding suggests that, in addition to these intrinsic ecogeomorphic feedbacks that make …

Mobility Through Droughts: Cross-Sectional Analysis Of Femora In A San Francisco Bay Area Prehistoric Native Population, Sarah M. Luce

Master's Theses

This thesis aims to infer mobility patterns in the California prehistoric burial population of CA-ALA-329 (Ryan Mound) by conducting cross-sectional analysis on femoral bones. CA-ALA-329 is considered to be a burial ground used by precontact Ohlone natives in the San Francisco Bay Area. Glacial changes, pollen studies, and

tree-ring data show shifts in climate change occurred during the Late Phase 1 Period, causing warmer and drier temperatures throughout California. Seventy-seven femora were analyzed in this study including 26 femora representing the Middle Period and 51 representing the Late Phase 1 Period. Cross-sectional geometric formulae were applied to measurements collected at …

Detecting Coastal Marsh Change From Aerial Imagery Using Spectral And Textural Methods: Pascagoula River Estuary, Mississippi, 1955-2014, Margaret Claire Bell Waldron

Master's Theses

As sea level rise accelerates, coastal marsh ecosystems are increasingly vulnerable. Vertical accretion rates must exceed or keep pace with rates of sea level rise to prevent transition to open water or inland migration of marsh vegetation. While some marsh systems along the northern Gulf of Mexico coast have remained stable, others, e.g., the marshes of the Louisiana Gulf Coast, have experienced high rates of conversion to open water. This study examined the historical extent of intertidal marsh at the mouth of the Pascagoula River in Jackson County, Mississippi to determine whether marsh extent changed during the period 1955-2014 and …

Classification Of Hyperspectral Colon Cancer Images Using Convolutional Neural Networks, Sean Joseph Mobilia

Master's Theses

Hyperspectral images are 3-D images, which contain data in hundreds of spectral bands as opposed to 2-D images, which contain data in at most 3 bands (red, green, and blue). Hyperspectral imagery was initially developed for remote sensing; however, recently, researchers have started to see its potential in medical diagnosis and cancer detection. Hyperspectral images provide massive amounts of data about the objects they are studying, and this causes challenges during information processing. Machine learning tools, such as convolutional neural networks (CNNs), are known to be successful in extracting features and classifying traditional 2-D images. This thesis proposes CNN architectures …

A Partial, Age-Graded Examination Of Agnew’S General Theory Of Crime And Delinquency, Jessie Slepicka

Master's Theses

Previous examinations of Agnew’s (2005) general theory of crime and delinquency have garnered mixed results for the theoretical construct. These previous investigations have concentrated on a singular stage of an individual’s life—with analyses focusing on either the adolescent (Muftić, Grubb, Bouffard, & Maljević, 2014; Ngo & Paternoster, 2014; Roh & Marshall, 2018; Zhang, Day, & Cao, 2012) or the adult (Cochran, 2017; Ngo, Paternoster, Cullen, & Mackenzie, 2011) time juncture—failing to empirically assess the variability hypothesis centrally proposed by Agnew. Using data from a nationally representative sample of participants—the National Longitudinal Study of Adolescent to Adult Health [n = 20,745 …

Exploring Language Construction And The Meaning Of “Success” In Addiction Recovery Settings, Ashleigh Pulling

Master's Theses

The number of drug overdose deaths has spiked in recent years, currently at a rate where 142 Americans die from opioid overdose every day (Goodnough 2017). This public health crisis has been framed as an epidemic, and this collective understanding may shape the way individuals and communities experience this tragedy. Few studies, however, have examined how the term success is defined in addiction recovery settings. To investigate language regarding what successful addiction recovery means, this research examined framing strategies in two recovery models, cognitive behavior therapy and shamanic therapeutic mechanisms, and connected them to the practices being employed by practitioners …

Hope For Struggling School Districts, Mary D. Travis

Master's Theses

Education improves the opportunities and life-chance outcomes of our children, and is a key factory in both economic and community development. Although high school graduation rates have shown improvement nationwide in recent years, public education is suffering from increasing inequality between different school districts and within the same school districts. Such inequalities widen academic outcome gaps and can result in entire school districts being branded as academic failures. However, there is also encouraging evidence of struggling schools and school districts moving toward improvement. Innovative leaders who are committed to inclusive and rigorous academics, shared leadership, and an in-depth understanding of …

First Thirty Days Of Life: Examining Calf Behavioral Development In Beluga Whales (Delphinapterus Leucas) And Pacific White-Sided Dolphins (Lagenorhyncus Obliquidens) At One Zoological Facility, Kendal Smith

Master's Theses

Cetacean development is important for general comparative understanding and the implementation of informed husbandry policies. Due to the inaccessibility of many of these species in the wild, researchers can study managed care populations to better understand basic developmental patterns of cetaceans, as well as to improve husbandry policies for facility animals. However, no previous studies have attempted to observe the behavioral development of Pacific white-sided dolphins (Lagenorhyncus obliquidens). Eight beluga whale calves and four Pacific white-sided dolphin calves were observed for the first 30 days of life to determine the developmental trajectory of several typically monitored behaviors. The …

Evaluating Alternate Management Strategies For Spotted Seatrout (Cynoscion Nebulosus) In The North-Central Gulf Of Mexico, Nathaniel Wallace Jermain

Master's Theses

Spotted Seatrout (Cynoscion nebulosus) receive considerable fishing pressure as the most popular saltwater target species in the north-central Gulf of Mexico. The potential for alternate management strategies, including stock enhancement and reducing discard mortality, to support the sustainability of the stocks and the desires of stakeholders is unknown. The purpose of this study was to provide an objective evaluation of the efficacy of alternate management strategies for Spotted Seatrout in Louisiana, Mississippi, and Alabama. I used a management strategy evaluation (MSE) to measure the performance of 18 alternate management scenarios relative to control scenarios. Scenarios with a high …

Gogo: An Improved Algorithm To Measure The Semantic Similarity Between Gene Ontology Terms, Chenguang Zhao

Master's Theses

Measuring the semantic similarity between Gene Ontology (GO) terms is an essential step in functional bioinformatics research. We implemented a software named GOGO for calculating the semantic similarity between GO terms. GOGO has the advantages of both information-content-based and hybrid methods, such as Resnik’s and Wang’s methods. Moreover, GOGO is relatively fast and does not need to calculate information content (IC) from a large gene annotation corpus but still has the advantage of using IC. This is achieved by considering the number of children nodes in the GO directed acyclic graphs when calculating the semantic contribution of an ancestor node …

Geographical Analysis Of Offender Vulnerability: Modeling Coastal Hazards And Social Disorganization In Southern Mississippi, Ashleigh Nicole Price

Master's Theses

Hazards research continually examines how specific groups are affected by damaging events and how their unique sociodemographic characteristics contribute to variations in resilience and recovery. Studies have shown that underprivileged communities suffer more adversely and take longer to recover from hazard events. Probationers and parolees are uniquely disadvantaged regarding demographics and economic opportunity, both of which contribute to increased vulnerability and reduced resilience. Numerous legal restrictions and widespread discrimination towards former criminals means offenders are often relegated to underserved, criminogenic neighborhoods. Given such severe social and financial limitations, offenders have little capacity to prepare for or recover from disasters.

The …

Organized Chaos: Daily Routines As A Potential Mechanism Linking Household Chaos And Child Behavior Problems, Kristy L. Larsen

Master's Theses

Children living in chaotic households exhibit more externalizing behaviors. Child externalizing behavior, exhibited as early as the toddler and preschool years, is a risk factor for later maladjustment. Understanding the mechanisms linking household chaos to early externalizing behaviors is important since those mechanisms could be targeted as a point of intervention. The primary aim of this study was to examine daily routines as a potential mediator of the relation between household chaos and both child externalizing behavior and bedtime resistant behavior. A secondary aim was to examine different levels of routines (family routines, general daily child routines, and specific bedtime …

A Comparison Of Social Learning In Domestic Canines, Beatrice Chenkin

Master's Theses

Domestic canines (Canis familiaris) provide a unique insight into the processes by which species can grow to cooperate efficiently with humans. Few studies have compared whether their behavior is more affected by humans or other canines. This study uses a two-action feeder (an apparatus that can be opened in one of two ways) to look into the methods of social learning they use and compares how they learn from humans vs. other canines. Sixty-four dogs from the Humane Society of varying backgrounds, ages, sexes, and reproductive statuses were tested on their ability to open the two-action feeder and the amount …

Maize And Bone: An Evaluation And Expansion Of A Proposed Model For The Differential Diagnosis Of Pellagra In Human Remains, Myra G. Miller

Master's Theses

This study attempts to test and expand a previous study to establish a differential diagnosis of pellagra in human remains (Paine & Brenton, 2006a). Seven individuals with documented pellagra and nine individuals randomly selected for comparison from the Hamann-Todd Osteological Collection were evaluated for caries, alveolar bone loss, periostitis, osteoporosis, cribra orbitalia, and porotic hyperostosis. Results indicate that the pellagra sample had lower rates of caries and alveolar bone loss, and higher rates of periostitis of the tibia and fibula in relation to the comparison sample. No osteoporosis, cribra orbitalia, or porotic hyperostosis was found in the pellagra sample. No …

Exploring The Moderating Effects Of Aggression On The Relationship Between Negative Urgency And Suicidal Desire, Rachel L. Martin

Master's Theses

Suicide is a health concern with 44,965 deaths in 2016. Typical assessment of risk factors relies on self-report, which can be susceptible to underreporting. As such, non-face valid measures and innovative assessment approaches such as implicit association tests may help identify risk factors by eliminating conscious underreporting. The Interpersonal-Psychological Theory of Suicidal Behavior is an empirically supported theory hypothesizing why individuals die by suicide. The theory comprises three elements: thwarted belongingness, perceived burdensomeness, and capability for suicide. Thwarted belongingness and perceived burdensomeness have been found to be non-face valid measures and less susceptible to conscious underreporting. Objective measures, such as …

Methylation-Specific Differentiation Of Vaginal Epithelial Cells For Forensic Tissue Typing By Bisulfite Conversion And Pyrosequencing, Elise Pood

Master's Theses

The identification of bodily fluids and tissues is often applied to criminal investigations to clarify events that may or may not have taken place. Current forensic techniques can identify blood, saliva, seminal fluid, and spermatozoa, but there is a clear absence of reliable testing to identify vaginal epithelial tissue. Though there are serological tests available for this purpose, tissue-specific methylation markers have recently been investigated as a candidate for the identification of blood, saliva, and spermatozoa.

In this study, tissue-specific methylation markers were analyzed to identify a set of markers for the differentiation of vaginal fluid from blood, saliva, and …

Are You Happy? Local Economic Development In Northern Thailand, Katherine Sorensen

Master's Theses

Thailand has had a long history of economic development. In recent years, Thailand began to focus on economic development initiatives a local level. The implementation process has been slow, but the introduction of social enterprise programs has proven a promising strategy in local economic development. Successful examples of economic development can be found in Thailand wherein this paper argues through collaboration between government agencies and local communities lies the key to success.

Qualitative techniques including a two months of fieldwork in Thailand, first hand observations, and appreciative inquiry interviews are used to analyze economic development initiatives in the communities of …

The Effects Of Salinity On Zootechnical Performance Of Spotted Seatrout (Cynoscion Nebulosus) In Recirculating Aquaculture Systems, Eric Gigli

Master's Theses

The spotted seatrout (Cynoscion nebulosus) is a euryhaline finfish candidate for marine aquaculture in the northern Gulf of Mexico. Aquaculture of this species currently uses salinities of 25 psu or greater making production challenging in areas where high salinity water is not available. This study aimed to document the effects of salinity on zootechnical performance of spotted seatrout embryos, early larvae, and juveniles in recirculating aquaculture systems to assist with the development of protocols for low salinity culture.

Embryos obtained from a volitional spawn at 29 psu were incubated at three salinities (12.5, 18.75, or 25 psu) until …

Attenuated Responses To Inflammatory Cytokines In Mouse Embryonic Stem Cells: Biological Implications And The Molecular Basis, Bohan Chen

Master's Theses

Embryonic stem cells (ESCs) have attracted intense interest due to their great potential for regenerative medicine. However, their immune property is an overlooked but a significant issue that needs to be thoroughly investigated not only to resolve the concern for therapeutic applications but also for further understanding the early stage of organismal development. Recent studies demonstrated that ESCs are deficient in innate immune responses to viral/bacterial infections and inflammatory cytokines. Inflammatory conditions generally inhibit cell proliferation, which could be detrimental to ESCs, since cell proliferation is their dedicated task during early embryogenesis. Thus, I hypothesize that the attenuated innate immunity …

Comparative Thermal Ecology Of Coastal And Inland Pacific Rattlesnakes (Crotalus Oreganus), Hayley Layne Crowell

Master's Theses

Global biodiversity is declining as a direct result of anthropogenic climate change. Ectothermic species have become focal organisms for studying the ecological effects of altered climates due to the clear relationship between environmental temperatures and ectotherms’ basic physiological functions. Historically, examinations of these effects have focused heavily on heliothermic lizards, and most others have tended to focus on single populations or sympatric species within a single community. Addressing the longterm energetic implications of environmental temperature variation will provide valuable insight into the cascading physiological effects that certain populations or species may experience as a result of altered climates.

In this …

Investigations And Analysis Of Dynamical And Steady State Properties Of Chemical Reaction Systems, Diego Ortega Hernandez

Master's Theses

In this paper, we investigate results from chemical reaction network theory and a list of techniques to test for the reaction-coordinates dynamical system to have a partial order induced by a positive orthant cone. A successful result from one of these tests guarantees mono-stationarity (and indeed convergence). We also investigate a recently published algorithmic and computational approach to determine whether a reaction network establishes mono- or multi-stationarity. We test new reactions that have not been previously introduced in the literature for mono- or multi-stationarity using this approach. This includes the two-site phosphorylation reaction network and a modified double phosphorylation reaction …

He's The Hero We Deserve: Batman As A Figure Of Dominant Masculinity, Karen Medrano

Master's Theses

For decades, comic books have been a prevalent media format through which cultural perceptions of masculinity are disseminated. Batman is an exemplary character who is expected to perform and behave in a manner that corresponds with social constructs of the American masculine identity: strong, dominant, and protective. These gendered traits, as represented through Batman’s body and relationships with various allies, are analyzed through the lens of R.W. Connell’s theory of dominant and subordinated masculinities (derived from her larger theory of hegemonic masculinity). As our cultural perception of masculinity has shifted, so has the visual representation of Batman over his eighty-year …