Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2019

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 68761 - 68790 of 69789

Full-Text Articles in Entire DC Network

Potential Of Nanoscale Elements To Control Fusarium Wilt Disease In Tomato (Solanum Lycopersicum), Enhance Macronutrient Use Efficiency, And Increase Its Yield, Ishaq Olarewaju Adisa Jan 2019

Potential Of Nanoscale Elements To Control Fusarium Wilt Disease In Tomato (Solanum Lycopersicum), Enhance Macronutrient Use Efficiency, And Increase Its Yield, Ishaq Olarewaju Adisa

Open Access Theses & Dissertations

Nanotechnology has a great potential in ensuring food production, security and safety globally. Over the past decade, research on the use of nanomaterials to supply nutrient elements and protect plants from pest and diseases has significantly increased. Tomato (Solanum lycopersicum) is one of the most consumed vegetables in the world and United State is one of its largest producers globally generating billions of dollars annually in revenue.. Tomato plants are affected worldwide by Fusarium wilt caused by Fusarium oxysporum f. sp. Lycopersici. There is growing concern about excessive use of conventional pesticides in controlling Fusarium and other diseases in tomato …


Cantor Sets, Cantorvals, And Their Topological Structure, Ángel Adrián Agüero Jan 2019

Cantor Sets, Cantorvals, And Their Topological Structure, Ángel Adrián Agüero

Open Access Theses & Dissertations

With interesting topological properties, the Cantor set is worth studying for itself. In other areas, topological structures arise that are in fact homeomorphic to the Cantor set. In particular, we see sets that are homeomorphic to the Cantor set which result from the subsums of particular series, as well as linear combinations of algebraic sums of Cantor sets. These also result in what has been termed a Cantorval, which we also investigate.


Scientific Islanders: Pacific Peoples, American Scientists, And The Desire To Understand The World, 1800-1860, Roberto Jesus Diaz Jan 2019

Scientific Islanders: Pacific Peoples, American Scientists, And The Desire To Understand The World, 1800-1860, Roberto Jesus Diaz

Open Access Theses & Dissertations

Between 1800 and 1860, Pacific Islanders sought answers to questions about the mechanics and origins of the universe, just as Americans did. But the systems of thought created by Natives addressing these matters generally would not have been considered "scientific" by Americans. Pacific Islanders and Americans, nevertheless, created extensive scientific traditions to systematically perceive, understand, and explain the nature of existence. These systems were rooted in religion, social dynamics, and other cultural norms, and manifested themselves in writing, artwork, explorations, and technologies that benefited their societies. Thus, this Thesis argues that the practice of scientific methods was not simply a …


Nietzsche And The Aestheticization Of The Natural Sciences, Sean Dillard Jan 2019

Nietzsche And The Aestheticization Of The Natural Sciences, Sean Dillard

Open Access Theses & Dissertations

This Thesis is an exploration of Friedrich Nietzsche's dictum that life only justifies itself aesthetically. Given his attempt to physiologize aesthetics, this project attempts to show the value of the parallels and reciprocities between taste, style, beauty, and good health for scientists - especially natural scientists. It hopes to show something valuable about what late-modern scientific practice lost, especially in the context of the departmentalization of the sciences in universities. Specifically, I argue, disentangling scientific practice from philosophical concerns - the death of what used to be natural philosophy - has resulted in worse scientists, worse scientific practice, and a …


Assessing Delamination Of Concrete Bridge Decks With Aging In Arid Regions Using Nondestructive Testing Methods, Melissa Escalante Jan 2019

Assessing Delamination Of Concrete Bridge Decks With Aging In Arid Regions Using Nondestructive Testing Methods, Melissa Escalante

Open Access Theses & Dissertations

Bridge decks usually experience deterioration at a more rapid pace than other infrastructure components due to the heavy traffic loads and environmental conditions that the deck sustains. Delamination within concrete bridge decks accelerates due to water and deicing salts penetrating the concrete; resulting in the corrosion of reinforcing steel. The corrosion of rebar may result in a fracture parallel to the surface of the concrete structure at the top of the reinforcement layer. The delamination is then subjected to expansion over a large span; risking the overall stability of the structural element. Health monitoring of concrete bridge decks is therefore …


Dynamic Triggering Of Earthquakes Within The State Of Utah, Usa, David Lewis Guenaga Jan 2019

Dynamic Triggering Of Earthquakes Within The State Of Utah, Usa, David Lewis Guenaga

Open Access Theses & Dissertations

Understanding the stress state of faults and the stress needed to trigger earthquakes remains a fundamental goal for understanding the earthquake cycle. We focus on deciphering the stress of faults by studying seismic waves from large, distant earthquakes that trigger local seismicity, called remote or dynamic triggering. Utilizing 17 years of waveform and catalog data (2000-2017) from seismic regional networks (i.e., EarthScope USArray Transportable Array, United States Geological Survey, and University of Utah Regional networks), we search for triggered seismicity in the state of Utah following 227 large magnitude (M ≥ 7) distant earthquakes. Utah provides a long-standing regional network …


Cicada's Song: A Memoir, Luz Hernandez Jan 2019

Cicada's Song: A Memoir, Luz Hernandez

Open Access Theses & Dissertations

Cicada's Song is a true account of my coming-of-age as a first-generation Colombian-American girl growing up as the only child of two loving parents-one of whom abused me sexually for eleven years, while the other stood by without intervening. Yet the story is not one of resentment, blame, or self-pity. Rather, it is one of identity, self-reliance, survival, forgiveness, and love. Through a series of memories, essays, statements, and poems, the memoir invites the reader on a voyage through my childhood and youth, with stops in my both present-day and recent past, in the hopes that he will see the …


The Rhetoric Of Low Carbon Energy Technology Scientists And Engineers, Nicolas Cesar Hernandez Jan 2019

The Rhetoric Of Low Carbon Energy Technology Scientists And Engineers, Nicolas Cesar Hernandez

Open Access Theses & Dissertations

Scholars in the burgeoning field of Energy Communication have successfully contributed to communication studies and environmental communication practice. However, energy communication scholars have largely focused on energy of media coverage, corporate communication and decision making in the context crisis. While rich and informative, this tendency has left quotidian aspects of energy communication rather understudied. As such, this Thesis contributes to the understanding of the internal, non-untechnical rhetoric of low carbon energy technology (LCET) scientists and engineers (herein LCET professionals). Textual analysis was used to examine LCET professionals' internal rhetoric at professional trade conferences and through long form, semi-structured interviews. Wind …


Materials Characterization In The Development Of Combustion-Based Methods For Synthesis Of Niobium Silicides, Edgar Maguregui Jan 2019

Materials Characterization In The Development Of Combustion-Based Methods For Synthesis Of Niobium Silicides, Edgar Maguregui

Open Access Theses & Dissertations

The use of characterization techniques is essential for a better understanding of novel manufacturing processes and for investigating how the process parameters affect the products. Mechanically activated self-propagating high-temperature synthesis (MASHS) is an attractive method for the production of high-temperature structural materials. In the present work, it was used to fabricate Nb5Si3 compound and Nb5Si3/Nb composites. It has been shown that for mechanical activation of Nb/Si mixtures, a planetary ball mill is more effective than a shaker ball mill used in prior research on MASHS of Nb5Si3. The influence of mixture composition and experimental parameters, such as milling time and …


Formulation And Implementation Of Iterative Method For Generating Spatially-Variant Lattices, Manuel Fernando Martinez Jan 2019

Formulation And Implementation Of Iterative Method For Generating Spatially-Variant Lattices, Manuel Fernando Martinez

Open Access Theses & Dissertations

The use of a matrix-free, memory-efficient approach to generate large-scale spatially variant lattices (SVL) was explored. A matrix-free iterative SVL generation algorithm was formulated and then implemented with a tremendous memory reduction observed. The algorithm consists of solving first-order central finite-differences along the entirety of the problem space point-by-point to obtain the grating phase function Φ(𝑠⃗) to which all desired spatially variant lattice properties are applied to. The algorithm was studied to identify key areas of data and task parallelism to exploit in heterogeneous computing systems consisting of clusters of central processing units (CPU) and graphics processing units (GPU) combinations. …


Precipitation And Transformation Of Iron-Sulfide Nanoparticles In Low-Temperature Aqueous Environment: Effects Of Reactant Iron And Sulfide Sources, Ezequiel A. Moreno Flores Jan 2019

Precipitation And Transformation Of Iron-Sulfide Nanoparticles In Low-Temperature Aqueous Environment: Effects Of Reactant Iron And Sulfide Sources, Ezequiel A. Moreno Flores

Open Access Theses & Dissertations

Iron sulfide nanoparticles assume an important role within a wide range of geological settings as indicators of redox environmental conditions and elemental cycling mechanisms. Initial precipitates of iron sulfide are exclusively nanoscale sized in low temperature aqueous conditions and have been reported to go through diverse morphological and phase transformations, possibly leading to the ultimate deposits of pyrite in geologic records of various times. A systematic understanding of how the early-stage nanoparticles of iron sulfide may develop into more crystalline iron sulfide forms is still lacking however. The major goal for this study was to illuminate the effects of the …


Art As A Mediating Tool: Children And Learning In A Music And Arts-Based After School Program, Claudia Saldana Jan 2019

Art As A Mediating Tool: Children And Learning In A Music And Arts-Based After School Program, Claudia Saldana

Open Access Theses & Dissertations

This study explores the experiences of primarily Latina/o children with learning music in a Music and Arts-Based Program (MABP) the context of a low-income neighborhood on the U.S- Mexico border. This year-long ethnographic study was conducted in an after-school art program in the Rio Grande Elementary School, in a low-income neighborhood located within one-mile of the U.S.-Mexico border. The purpose of the study is to understand how music and art can be used as a mediating tool for children to construct social and cognitive learning within a culturally diverse community, thus, enhancing the social environment in which they interact. The …


Las Espinas Del Cactus, Maria Lorena Sosa Rodriguez Jan 2019

Las Espinas Del Cactus, Maria Lorena Sosa Rodriguez

Open Access Theses & Dissertations

Las espinas del cactus es una exploración científica de la vegetación desértica entre México y Estados Unidos, particularmente la de Ciudad Juárez-El Paso, para abordar desde un lenguaje poético los temas de migración e identidad.

Confeccionado como un herbario este poemario especula sobre dos principales tópicos:

• La ausencia de voces femeninas en los discursos tradicionales y sus derivaciones.

• Narrativas que hacen referencia a diferentes éxodos, que al mismo tiempo han fungido como teorías para explicar el origen de una comunidad.

El leitmotiv de este proyecto está basado en las plantas y la posibilidad de encontrar versiones sobre la …


Reanimation (Afterlife Rebellion Book 1), Nicole A. White Jan 2019

Reanimation (Afterlife Rebellion Book 1), Nicole A. White

Open Access Theses & Dissertations

Reanimation (Afterlife Rebellion Book 1) is the first book in a young adult science fiction and fantasy duology about a group of ghosts and a teenage necromancer who must come to terms with a corrupted afterlife. The overarching goal was to craft an accessible fantasy, with its characters being unfamiliar with genre conventions so that readers who were as well could have an entry point into the category, and familiar readers could enjoy new interpretations of the canon. Traditional character archetypes and stereotypes that have been proven to impede representation in the genre and deter new readership are subverted or …


Fishers' Ecological Knowledge And Stable Isotope Analysis: A Social-Ecological Systems Approach To Endangered Species Conservation, Kathryn Rose Wedemeyer-Strombel Jan 2019

Fishers' Ecological Knowledge And Stable Isotope Analysis: A Social-Ecological Systems Approach To Endangered Species Conservation, Kathryn Rose Wedemeyer-Strombel

Open Access Theses & Dissertations

Identifying developmental habitat is essential for understanding population structure and species resiliency, especially for critically endangered species. In long-lived, oceanic, migratory animals such as sea turtles, elucidating developmental grounds is particularly difficult. When data are deficient or challenging to acquire, scientists often lean towards traditional quantitative methods when a social-ecological systems approach could better provide crucial baseline data and guiding information. Fishers’ ecological knowledge (FEK), the combination of experiential and culturally transmitted knowledge, is expert knowledge and should be treated as such. In 2008, FEK led to the “rediscovery” of the critically endangered eastern Pacific (EP) population of hawksbill sea …


Murphy V. Twitter, California Superior Court Jan 2019

Murphy V. Twitter, California Superior Court

Historical and Topical Legal Documents

No abstract provided.


Letter Re California Consumer Privacy Law Corrections, Lothar Determann Jan 2019

Letter Re California Consumer Privacy Law Corrections, Lothar Determann

Historical and Topical Legal Documents

No abstract provided.


Ralph Waldo Emerson And Jorge Luis Borges: Harbingers Of Human Rights, Elizabeth Joy Gillespie Jan 2019

Ralph Waldo Emerson And Jorge Luis Borges: Harbingers Of Human Rights, Elizabeth Joy Gillespie

Electronic Theses and Dissertations 2010 - 2019

This dissertation comparatively analyzes the works of Ralph Waldo Emerson, a nineteenth century American, and Jorge Luis Borges, a twentieth-century Argentinian, within the context of human rights. Through their writings, both Emerson and Borges provided a voice to the voiceless by addressing the most egregious violations of human rights during their respective days: For Emerson, the most virulent social ill was slavery; for Borges, it was fascism. While Emerson and Borges differ in several ways, they are remarkably similar in their emphasis of natural laws and natural rights, notably egalitarianism and liberty, which underpin humanity and comprise an integral aspect …


Regulation Of Caspase-3 Activation By Phosphoryalted Ab-Crystallin And Its Role In Differentiation, Patrice Cherubin Jan 2019

Regulation Of Caspase-3 Activation By Phosphoryalted Ab-Crystallin And Its Role In Differentiation, Patrice Cherubin

Electronic Theses and Dissertations 2010 - 2019

The lens is responsible for focusing light into the retina. It accomplishes this through its maturation from an epithelial cell into a fiber cell. A large amount of research has been done on cellular differentiation. Nevertheless, we still lack knowledge on many different aspects of differentiation, including a complete theory on the mechanism behind differentiation. Due to the lens’ unique structure and cell types, this is an ideal model for studying differentiation. Our research has shown that αB crystallin, a small heat shock protein, is able to modulate cytochrome C levels and protect the mitochondria under oxidative stress. Also, cytochrome …


Self-Assembling Of Neutral And Charged Nanoparticles Into Core-Shell Nanohybrids Through Heteroaggregation With Size Control, Kazi Albab Hussain Jan 2019

Self-Assembling Of Neutral And Charged Nanoparticles Into Core-Shell Nanohybrids Through Heteroaggregation With Size Control, Kazi Albab Hussain

Electronic Theses and Dissertations 2010 - 2019

Core-shell nanohybrids have wide applications in pollutant degradation. In this study, core-shell nanohybrid was formed through heteroaggregation between neutral nanoparticles (i.e., hematite nanoparticles or HemNPs) and charged nanoparticles (i.e., carboxylated polystyrene nanoparticles or PSNPs). In the dispersant solution of 1 mM NaCl at pH 6.3, HemNPs were neutral and underwent favorable homoaggregation, whereas PSNPs were negatively charged and underwent no homoaggregation. When the two types of particles were mixed, homoaggregation of HemNPs and heteroaggregation between HemNPs and PSNPs took place simultaneously, forming HemNPs-PSNPs heteroaggregates. The transmission electron microscopy images of heteroaggregates show that HemNPs and PSNPs formed core-shell structure in …


Summary Judgement At Dachau: Exploiting The Massacre Of Ss Guards By Allied Liberating Troops At Dachau, Stephen C. Krzeminski Jan 2019

Summary Judgement At Dachau: Exploiting The Massacre Of Ss Guards By Allied Liberating Troops At Dachau, Stephen C. Krzeminski

Electronic Theses and Dissertations 2010 - 2019

This research analyzes how American soldiers reacted to the Dachau concentration camp, and offers statistics that counter the arguments made by Holocaust deniers and revisionists. It compares how the Soviets, British, and Americans conducted themselves as they freed other prisoners, and discusses why every camp liberation was dissimilar. Evidence gathered from the liberators who executed the SS disproves the argument that they were premediated killers and emphasizes how unique Dachau’s conditions were on the day of liberation, when compared to other concentration camps. It also directly refutes many arguments made by Holocaust deniers, and addresses their erroneous narratives, statistics, and …


The Communicative Power Of Social Media During The Never Again Msd Movement Media, Ashley Fenelon Jan 2019

The Communicative Power Of Social Media During The Never Again Msd Movement Media, Ashley Fenelon

Electronic Theses and Dissertations 2010 - 2019

Social media played a pivotal role during The Never Again MSD Movement. This study examines the communicative tools social media, specifically Twitter, provides its users in order to communicate and distribute information. Authors Evans, Twoney, and Talan describes Twitter as “a valuable tool because it allows for instant communication to a wide audience” (9). Twitter is a valuable tool for communication because it fosters an online space where activists utilize the following communication tools: conversation, community, connection, collaboration, and accessibility. The study describes how activists use those tools in the type of messages being communicated on digital spaces. Through a …


The Effects Of Equine-Assisted Psychotherapy On Mindfulness, Self-Reflection, Insight, And Psychological Well-Being In Veterans, Carol A. Reive Jan 2019

The Effects Of Equine-Assisted Psychotherapy On Mindfulness, Self-Reflection, Insight, And Psychological Well-Being In Veterans, Carol A. Reive

Electronic Theses and Dissertations 2010 - 2019

The purpose of this quasi-experimental study was to investigate the effects of equine-assisted psychotherapy (EAP) on mindfulness, self-reflection, insight, and psychological well-being in an adult veteran population with mental health concerns. Specific aims were (1) to determine the effect of EAP on mindfulness, self-reflection, insight, and psychological well-being in veterans with psychiatric diagnoses or mental health concerns; and (2) to describe the relationship of the sociodemographic characteristics (age, ethnicity, gender, education level, income, and deployment history) to mindfulness, self-reflection, insight, and psychological well-being of adult veterans with mental health concerns engaged in EAP. Smith’s (1999) theory of unitary caring provided …


The Engagement Practices Of Teachers In A Select Elementary School Of Palm Beach County: Qualitative Study, Amgad Hirmina Jan 2019

The Engagement Practices Of Teachers In A Select Elementary School Of Palm Beach County: Qualitative Study, Amgad Hirmina

Electronic Theses and Dissertations 2010 - 2019

The purpose of this qualitative case study was to describe the interactive teaching methods of full-time elementary school teachers who worked in a highly ranked public elementary school located in Palm Beach County in South Florida, United States (the School District of Palm Beach County, 2019). The dissertation identified methods used by these teachers to enhance interaction between themselves and students in their classes. Objectives of the study were to explore: (1) the verbal and non-verbal activities used by the teachers to engage their students in the learning process in their classes; (2) the creative thinking process of the teachers; …


The Impact Of Florida Senate Bill 1720 On Student Performance In Mathematics, Olivia Aleida Shand Jan 2019

The Impact Of Florida Senate Bill 1720 On Student Performance In Mathematics, Olivia Aleida Shand

Electronic Theses and Dissertations 2010 - 2019

The primary purpose of this study was to investigate the impact of Florida Senate Bill 1720 on student performance in Mathematics. Prior to its enactment, placement testing was mandatory in the State of Florida. The results determined if a student was required to enroll in any developmental courses prior to enrolling in college-level Mathematics courses. For many students, particularly those at the State College level, this extended the number of required courses, lengthening the path to completion for a volume of students. The results over time proved a costly burden on institutions that serve populations of students not prepared to …


The Use Of Chemical Cues By Sargassum Shrimps Leander Tenuicornis And Latreutes Fucorum In Establishing And Maintaining A Symbiosis With Sargassum Algae, Jaime L. Frahm Jan 2019

The Use Of Chemical Cues By Sargassum Shrimps Leander Tenuicornis And Latreutes Fucorum In Establishing And Maintaining A Symbiosis With Sargassum Algae, Jaime L. Frahm

Electronic Theses and Dissertations 2010 - 2019

A mutualistic symbiosis exists between the alga Sargassum spp. and two shrimp species, L. tenuicornis and L. fucorum. But little is known about how the shrimp locate their host alga. Both visual and chemical cues are potentially available. Visual cues would be presumably restricted at night but chemical cues are potentially available continuously. Additionally, a previous study has looked at both cue variables with results that are mixed. This current research elaborates on the previous study in an attempt to fully understand Sargassum shrimp chemoreception. A y-maze and four-chambered apparatus were used to test if the shrimp were able to …


The Seven Ages Of Susanna: Immersing In The Narrative Through Augmented Reality, Laura N. Benitez Jan 2019

The Seven Ages Of Susanna: Immersing In The Narrative Through Augmented Reality, Laura N. Benitez

Electronic Theses and Dissertations 2010 - 2019

The story is a sequence of events. Since nomadic times we have been drawn to the process of storytelling and the underlying themes hidden within these plots. Now, as the technological advancements made in new media lead us to this point, there is the need to reconcile the connection of the narrative with that of new media. Many theorists such as Manovich believe the narrative is slowly dying as new media continues to evolve. While others such as Bolter and Grusin think the story and traditional media is merely reinserting itself into new media. In the augmented reality story, The …


Wartime Reconstruction And The Restored Government Of Virginia, 1861-1865, Robert Mooney Jan 2019

Wartime Reconstruction And The Restored Government Of Virginia, 1861-1865, Robert Mooney

Electronic Theses and Dissertations 2010 - 2019

For the past century and a half historians have conducted more research on the Civil War and Reconstruction than most other subjects. Except for minor mentions and one biography on the governor, the Restored Government of Virginia has been left out of the historiography. The earliest historians or political commentators believed the Restored Government to be a small and ineffectual government that failed to achieve any broad level of support from its constituents. Furthermore, the early works suggested that the governments’ true purpose was to see that western Virginia was separated from Virginia, not to seek the return of Virginia …


Veins Of Oppression In Under The Feet Of Jesus, Cynthia Wedding Jan 2019

Veins Of Oppression In Under The Feet Of Jesus, Cynthia Wedding

Electronic Theses and Dissertations 2010 - 2019

“Veins of Oppression” takes an interdisciplinary approach towards unearthing the layers of subjugation piled on Chicano/a/x migrant farm workers in the fields of California, visible in Helena Maria Viramontes’ Under the Feet of Jesus. While critics such as Christa Grewe-Volpp, Anne Shea, and Sarah Wald have produced progressive work about this text that adds to their respective disciplinary fields, unique to this collection, the interdisciplinary framework visible in “Veins of Oppression” forces readers to bear witness to the many ways Chicano/a/x migrant farm workers are kept from accessing the privileges implicit in U.S. citizenship through longstanding and current agricultural practices. …


Using Hydrogeophysical Methods For Investigating Carbon Dynamics In The Greater Everglades Watershed: Implications For The Spatial And Temporal Variability In Carbon Stocks And Biogenic Gas Fluxes, Matthew D. Mcclellan Jan 2019

Using Hydrogeophysical Methods For Investigating Carbon Dynamics In The Greater Everglades Watershed: Implications For The Spatial And Temporal Variability In Carbon Stocks And Biogenic Gas Fluxes, Matthew D. Mcclellan

Electronic Theses and Dissertations 2010 - 2019

Peat soils store a large fraction of the global soil carbon (C) pool and comprise 95% of wetland C stocks. They also have the capability to produce and release significant amounts of greenhouse gasses (CO2, CH4) into the atmosphere. Most studies of wetland soil C and gas flux dynamics have been done in expansive peatlands in northern boreal and subarctic biomes. However, wetlands in temperate and tropical climates are vastly understudied despite accounting for more than 20% of the global peatland C stock and storing large amounts of biogenic gasses Although studies investigating greenhouse gas dynamics from peatlands have increased …