Digital Commons Network^™

Thomas Hobbes, John Locke, And Champeta: The Colombian Conflict As Case Study In Sovereignty, Anna Shepard

CMC Senior Theses

I will argue that a discussion of sovereignty as it relates to internal conflict deepens our understanding of the Colombian conflict, and in turn, the Colombian conflict deepens the ongoing discussion on sovereignty. Internal armed conflict is a tool to free and dominate populations, to save and kill individuals, and to destroy and build institutions. Thomas Hobbes and John Locke set an initial framework for understanding sovereignty. Armed actors use violence to create a sphere of influence that overlaps with the state’s legal jurisdiction: armed actors use violence as a strategy of hegemonic state building. Overlapping territorial claims challenge the …

Resilience In Ecotoxicology: Toward A Multiple Equilibrium Concept, Mirco Bundschuh, Ralf Schulz, Ralf B. Schäfer, Craig R. Allen, David G. Angeler

School of Natural Resources: Faculty Publications

The term resilience describes stress-response patterns across scientific disciplines. In ecology, advances have been made to clearly define resilience based on underlying mechanistic assumptions. Engineering resilience (rebound) is used to describe the ability of organisms to recover from adverse conditions (disturbances), which is termed the rate of recovery. By contrast, the ecological resilience definition considers a systemic change, that is, when ecosystems reorganize into a new regime following disturbance. Under this new regime, structural and functional aspects change considerably relative to the previous regime, without recovery. In this context, resilience is an emergent property of complex systems. In the present …

Crash Rate As A Function Of Access Point Density And Traffic Flow, George Pinal

Open Access Theses & Dissertations

High crash rates on U.S. highways results in a considerable loss of human and economic resources. It is estimated that the U.S. loses about $10 billion every year in motor vehicle crashes in terms of fatalities, injuries, and property damage. Demand for access points from highways to properties has steadily increased due to rapid growth in local economies creating thereby compromises between accessibility and mobility or capacity and safety. On the other hand, the availability of access is essential to residential and commercial developments and often occurs at the cost of safety and traffic operations. This often directs the need …

Characterizing Regulatory Factors Of The Sumoylation System, David Quintanar

Open Access Theses & Dissertations

The effects that influenzaâ??s seasonal epidemics have on human health and the global economy have been clearly noted; while they are indeed very impressive, the impact of influenza pandemics arguably surpass other known infectious agents. Influenza A virus attaches to, enters, and infect cells by releasing its segmented genome which localize to the nucleus then use the hostâ??s cellular machinery to replicate and create viral progeny. The virus is able to hijack transcriptional components as well as to interact with other known and unknown host proteins which ultimately allows for a balance between cell viability and viral propagation. One known …

Systematics Of Collared Snakes And Burrowing Asps (Aparallactinae And Atractaspidinae) (Squamata: Lamprophiidae), Francisco Portillo

Open Access Theses & Dissertations

The Subfamilies Aparallactinae (collared snakes) and Atractaspidinae (burrowing asps) occur in multiple habitats throughout sub-Saharan Africa, and they include multiple poorly studied genera. The monophyly of these groups are well established, but relationships within the subfamilies are poorly known. My study contains samples from six of eight aparallactine genera, and both atractaspidine genera in the Middle East and sub-Saharan Africa. I employed concatenated gene-tree analyses, divergence dating approaches, ancestral-area reconstructions, ancestral-state reconstructions, morphological analyses, and taxonomic assessments to infer phylogenies, biogeographic patterns, and evolutionary histories with a multi-locus data set consisting of three mitochondrial (16S, cyt b, and ND4) and …

Analysis Of Gesture Frequency And Amplitude As A Function Of Personality In Virtual Agents, Alex Michael Rayon

Open Access Theses & Dissertations

Embodied conversational agents are changing the way humans interact with technology. Agents are expected to behave like people, both verbally and non-verbally. Researchers within the Human-Computer Interaction community have found many attributes of an agentâ??s gesture contribute to an agentâ??s perceived personality and believability.

Gesture amplitude and frequency are two of the attributes that contribute to the naturalness of a gesture. Currently, no previous studies have defined an empirical baseline for generating natural gestures for these two attributes. I seek to discover whether gesture amplitude and frequency affect how users perceive an agentâ??s naturalness, and which gestures would be preferred …

The Neuromodulatory Mechanisms That Monoamines Control Simple And Complex Behaviors, Paul Rafael Bermeo Sabandal

Open Access Theses & Dissertations

For my Dissertation, I worked on three projects in the fruit fly Drosophila melanogaster, which is a well-established genetic animal model. The first project (Chapter 1) is to elucidate the neural, cellular and molecular mechanisms underlying behavioral control named response inhibition. In this study, I identified that a particular subset of dopamine neurons, D1 dopamine receptors and the neural substrates crucial for response inhibition. Abnormal response inhibition is associated with the mental disorders including attention deficit hyperactivity disorder (ADHD), autism, schizophrenia, obsessive compulsive disorder, posttraumatic stress disorder and addiction, This study may help enhance our understanding the pathogenesis mechanisms of …

Process-Structure-Property Relationship In Magnesium-Based Biodegradable Alloy For Biomedical Applications, Pramanshu Trivedi

Open Access Theses & Dissertations

Magnesium alloys are considered to be the next generation of biomaterials because of their ability to degrade in the physiological environment. We elucidate here the impact of multiaxial forging of Mg-2Zn-2Gd alloy on grain refinement to sub-micron regime and relate the structure to mechanical properties and biological functionality. As-cast and annealed samples were multiaxial forged (MAF) for a total number of two passes with a true strain of ~2/pass. Considering that the microstructure governs the biological response of materials, we studied the constituents of the microstructure in conjunction with the mechanical behavior. The antimicrobial behavior in a Mg-2Zn-2Gd alloy with …

The Contribution Of Alternative Splicing Toward The Global Control Of Sumo1 Sumoylation, Myriah Lorraine Acuna

Open Access Theses & Dissertations

SUMOylation, the attachment of the Small Ubiquitin-like Modifier (SUMO) to a target protein, is a post-translational modification similar to that of Ubiquitination in terms of the cascade of events required to produce the final modified target. However, instead of targeting proteins for degradation, as Ubiquitination usually does, SUMOylation appears to regulate many vital cellular processes including nucleocytoplasmic transport, transcription, apoptosis, protein stability, response to stress, and progression through the cell cycle (Hay, R.T, 2005). This versatility exhibited by the SUMOylation system makes it an optimal target for viral manipulation, as our laboratory has previously described for Influenza A virus (Pal, …

Imaging Live Drosophila Brain With Two-Photon Fluorescence Microscopy, Syeed Ehsan Ahmed

Open Access Theses & Dissertations

Two-photon fluorescence microscopy is an imaging technique which delivers distinct benefits for in vivo cellular and molecular imaging. Cyclic adenosine monophosphate (cAMP), a second messenger molecule, is responsible for triggering many physiological changes in neural system. However, the mechanism by which this molecule regulates responses in neuron cells is not yet clearly understood. When cAMP binds to a target protein, it changes the structure of that protein. Therefore, studying this molecular structure change with fluorescence resonance energy transfer (FRET) imaging can shed light on the cAMP functioning mechanism. FRET is a non-radiative dipole-dipole coupling which is sensitive to small distance …

Characterization & Extraction Of Extracellular Matrix From Porcine Adipose Tissue, Rahulkumar Kantibhia Bhoi

Open Access Theses & Dissertations

Tissue in particular extracellular matrix(ECM) plays a vital role in the growth and the function of each cell types and promote tissue regeneration and repair an impair organs. Many techniques have been developed so far to decellularized porcine tissue for the purpose to use as regenerative medicine and in tissue engineering. We aimed to optimized a method to decellularized porcine tissue while effectively eliminating xenogeneic epitopes, lipids and to retain necessary component of it intact without disrupting ECM. We have developed 2-week protocol to optimize well preserved ECM component that may keep xenogeneic biomaterial for tissue engineering and regenerative medicine. …

Utilizing Historical Mosquito Surveillance Data To Investigate The Efficacy Of Municipal Fogging In Controlling Mosquito Population Density, Andrea Betina Carzoli

Open Access Theses & Dissertations

Background: Mosquito borne diseases are the cause of many different disease syndromes and deaths in animals, both wild and domesticated, and humans of all ages and ethnicities. Though El Paso, TX is located in an arid region, mosquito populations are still rapidly growing in urban and agricultural communities and so are the mosquito borne illnesses. The most common vectors associated with mosquito borne illnesses in El Paso County are Culex quinquefasciatus, Culex tarsalis, and Aedes aegypti. Vector management is often the primary option to prevent and control outbreaks of mosquito borne illnesses and very often utilize fogging as the primary …

From The Fangs Of Monsters: Gender, Empire, And Civilization In The Pacific, 1800-1850, Michael David Chavez

Open Access Theses & Dissertations

As the nineteenth century commenced, contact between Pacific Islanders and Anglo-Americans increased as did the concern for what resulted from those interactions. In the United States, antebellum restrained men––those who upheld their Protestant faith, self-reliance, and familial values––used ideals of gender to combat the perceived “savagery” of Pacific Islanders and the corruption of American sailors among them. In the mission field, restrained men consciously sought after Anglo-American women’s influence often believing them to be the moral authority of a softer form of empire. This particular form of empire was not government led; nor did it entail the immediate conquest of …

Octopamine In Sexual Behavior, Ana Isabel Fernandez

Open Access Theses & Dissertations

Octopamine is a biogenic amine neuromodulator present in neuronal and non-neuronal tissues in invertebrates (Roeder, 1999). It modulates numerous physiological processes such as motivation, pheromone response, olfaction, ovulation, learning and memory. Octopamine together with its precursor tyramine have roles restricted only to invertebrates (Roeder, 1999). It is believed that octopamine is the invertebrate homolog of norepinephrine, a catecholamine present in mammals that acts as a neuromodulator in the sympathetic and central nervous systems. Both octopamine and norepinephrine are derived from the same amino acid tyrosine and are monoamine neurotransmitters. The main objective of this study is to understand the role …

Development Of Post-Pareto Optimality Methods For Multiple Objective Optimization, Juan Valentin Fernandez

Open Access Theses & Dissertations

In the past years, multiple objective optimization has been considered, as an important research area since in many real life problems there exists multiple criteria that need to be optimized simultaneously. The use of evolutionary algorithms or metaheuristic methods as solution methodologies lead to a large number of Pareto solutions rather than a single unique optimum. This Pareto-optimal set most of the time tends to be very large and the decision maker now faces the challenge of reducing its size to analyze a feasible number of solutions, thus deciding the best possible solution. In this work, two methods will be …

Characterization Of Sex Differences In The Reinforcing Effects Of Nicotine, Rodolfo Jesus Flores Garcia

Open Access Theses & Dissertations

It is presently unclear whether ovarian hormones, such as estradiol (E2) promote the reinforcing effects of nicotine in females. Thus, we compared extended access to nicotine intravenous self-administration (IVSA) in intact male, intact female, and OVX female rats (Study 1) as well as OVX females that received vehicle or E2 supplementation (Study 2). The E2 supplementation procedure involved a 4-day procedure involving 2 days of vehicle administration and 2 days of E2 administration. Two doses of E2 (25 or 250 ug) were assessed in separate groups of OVX females in order to examine the dose-dependent effects of this hormone on …

Investigation Of Earthquake And Geyser Activity From Short-Term Nodal Array Deployment Centered At Old Faithful Geyser, Susana I. Garcia

Open Access Theses & Dissertations

Yellowstone National Park is home to an active caldera, centrally located on the North American continent. Several studies have concluded the existence of a hotspot that fuels the hydrothermal, geothermal and earthquake activity in the Yellowstone region. The geologic record of Yellowstone contains multiple layers of volcanic deposits that indicate the region experienced three previous massive volcanic eruptions dating back 2.05Mya, 1.2Mya and the most recent 640,000 years ago. Yellowstone is also home to one of the largest geothermal areas in the world. With this study, an in-depth look at seismicity and geyser events recorded within an active geothermal region, …

My First Moon, Guadalupe Garcí­A Mccall

Open Access Theses & Dissertations

In his book, The Storytelling Animal, Jonathan Gottschall states that a "Story's role in human life extends far beyond conventional novels or films. Story, and a variety of storylike activities, dominates human life" (8). This quote illustrates how important writing and writers are in our society. This idea resonates with my deeply felt need to create meaningful work, work that will make its way into the fabric of our social structure, work that will improve and elevate life for humanity and the world our children will inherit.

One thing that is always of utmost concern to me as a writer …

El Makech Púrpura, Daniela Gonzalez

Open Access Theses & Dissertations

Collection of short stories that take place in Chetumal.

On Demand 3d Printed Hybrid Scaffolds For Tissue Engineering Applications, Ivan D. Hernandez

Open Access Theses & Dissertations

A composite 3D printed polymer scaffold with inbuilt porosity and filled with a hydrogel can provide an ideal support system for cell growth, proliferation, and vascularization. Therefore, a hybrid system of 3D printed polycaprolactone (PCL) scaffold and a hydroxyapatite-based hydrogel was developed for application in the reconstruction of bone defects, which are inherently difficult to repair without any guided therapies. In the present study, a 3D printed gyroid structure of PCL allowed the loading of a higher amount of hydrogel as compared to conventionally used 3D printed mesh structure of the same volume and strut thickness. The hydrogel was composed …

Novel Possibilities For The Treatment And Prevention Of Cutaneous Leishmaniasis, Eva A. Iniguez

Open Access Theses & Dissertations

Protozoan parasites from the genus Leishmania cause broad clinical manifestations known as leishmaniasis, which affect millions of people worldwide. Cutaneous leishmaniasis (CL) is mainly caused by either Leishmania major or L. tropica parasites, which produce localized cutaneous ulcers, often leading to scarring and social stigma. Currently, the disease has reached hyperendemicity levels in the Middle East due to conflict and human displacement and is one the most common forms of the disease in the Old World. Furthermore, the first choice of treatment in that region continues to be pentavalent antimonials, which are costly and highly toxic, and current vector control …

The Geometry Of Loss: A Novel, Elidio La Torre La Torre

Open Access Theses & Dissertations

In the year 2025, Orlando Aniello, nicknamed “Or,” a Puerto Rican poet with a broken life, becomes a “consciousness in virtual space.” Tricked by a couple of goons that devote most of their duties to bootleg memories for people who lead dull and meaningless lives, Orlando’s personality splits into fragments. As consequence, his actual experiences blend the host’s own recollections, which accidentally upload to Orlando’s brain. If bootleg mnemonic technologies glitch, Orlando does not know who he is anymore. Indeed, Orlando/ Gogo/ Alejandro suffers anterograde memory loss, and the narrator becomes merely a voice without a body. A geometry of …

Bilingual Novel Word Learning In Sentence Contexts, Justin G. Lauro

Open Access Theses & Dissertations

According to the Instance-based framework of adult vocabulary learning, each time a learner encounters a new word in context, an episodic memory trace, containing the word itself and the surrounding context, is formed. Previous research has demonstrated an advantage in memory for words encountered in a variety of semantic contexts. This advantage occurs because distinctive contexts generate more distinctive memory traces. While research has demonstrated that a variety of contextual characteristics are encoded (e.g. semantic context, modality, and language), it is unknown whether varying the language context in which a word is encountered has a similar benefit on memory for …

The Ball's In Her Court: Communicating Gender And Sexual Identity In Today's Wnba, Jose Maldonado

Open Access Theses & Dissertations

Prior research has demonstrated certain societal issues that impact not only female basketball players, but all female athletes on more of a larger scale than just participating in sport. With social media rapidly becoming a popular form of communication today, and the dilemma of these women being analyzed for something other than their basketball prowess, it is important that certain communication strategies in a mediated environment be further researched. Using textual analysis, three of the WNBA's most popular players will be examined to determine if there are significant themes and differences that confirm the previously established gender norms, along with …

A Comparison Of Uvr-Induced Mortality In Bdelloid Rotifers, Maite Martin

Open Access Theses & Dissertations

Increases in UV radiation (UVR) reaching Earth's surface as a result of anthropogenic activities and changing climate patterns are having a variety of effects on ecosystems. Such effects have been observed in aquatic environments, although certain parameters such as dissolved organic carbon (DOC) concentrations can modulate the level of exposure. Bdelloid rotifers are aquatic micro-invertebrates that pose a remarkable variety of special abilities to survive adverse conditions, including a resistance to UVR. Previous studies have suggested this resistance may have evolved in response to episodes of desiccation that they experience in their natural habitats. This characteristic may be especially important …

The Metabolically Sentient Arcuate Nucleus: A Functional, Chemoarchitectural And Connectional Study In The Adult Male Rat, Anais Martinez

Open Access Theses & Dissertations

As the obesity pandemic continues to increase, so does the incidence rate of related conditions including diabetes, cardiovascular disease, and neurodegenerative disorders (Yu and Kim 2012). At the level of the brain, the hypothalamus is a key structure for the integratration of autonomic, neuroendocrine and somatomotor functions for the control of metabolism and homeostasis. It has long been implicated as a critical player in the deregulation of an animal's energy status and in the onset of obesity, diabetes and metabolic syndrome (Elmquist et al., 1999). While many ongoing studies are aimed at preventing or treating these conditions, the underlying mechanisms …

A New Method For Ultra-Low Sulfate Extraction And A Pilot Study In Arid Soils, Marisela Montelongo

Open Access Theses & Dissertations

Sulfur in soils is a crucial nutrient for all organisms including plants. Sulfate (SO42-), a water soluable anion, is a good source of this important element. Because of the importance of sulfur for agriculture, the use of sulfate has been well studied in temperate climate zones, and it is generally accepted that microbes play a critical role in controlling the availability of sulfate. Organically bound sulfur, such as sulfate esters and carbon-bonded sulfur, compounds that are generated and decomposed by microbes, are essential sulfur sources for plants under these conditions. For arid environments, knowledge of sulfate turnover in soils by …

Machiavellianism And Endorsement Of Appeal Type: An Examination Of Organization Recruitment, Steven M. Mueller

Open Access Theses & Dissertations

Machiavellianism is characterized by a cynical worldview, a relativistic ethical orientation, and a willingness to manipulate others. Because those higher in Machiavellianism are successful at obtaining positions of power, research is needed to better understand the ways these individuals influence others' attention and behavior. This study examined the effect of Machiavellianism and related personalities narcissism and psychopathy on appeal type preference (guilt-based, ego-promoted, or neutral). In this study, Machiavellianism was not associated with appeal type preference. Those higher in psychopathy, however, were more likely to endorse guilt-based persuasiveness. Further, those higher in narcissism reported positive attitudes toward the recruitment statement. …

Her, Alessandra Narvaez-Varela

Open Access Theses & Dissertations

N/A

Evaluating Binary Splits On Nominal Inputs, Isaac Xoese Ocloo

Open Access Theses & Dissertations

The maximally selected statistic approach in building tree models is shown to be a cause of variable selection bias. In this study we propose three methods to solve this problem in building regression trees with nominal predictor variables. Out of the three methods

proposed we explored only two in detail and defer one for further research. We developed an exact method to compute the p-value corresponding to the maximized splitting statistic in regression trees for nominal predictor variables with at most 10 distinct levels and a

method to estimate the best cutoff point as a parameter in a parametric nonlinear …