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Articles 2431 - 2460 of 14983
Full-Text Articles in Entire DC Network
Fabrication And Characterization Of Dna Templated Electronic Nanomaterials And Their Directed Placement By Self-Assembly Of Block Copolymers, Dulashani Ruwanthika Ranasinghe Weerakkodige
Fabrication And Characterization Of Dna Templated Electronic Nanomaterials And Their Directed Placement By Self-Assembly Of Block Copolymers, Dulashani Ruwanthika Ranasinghe Weerakkodige
Theses and Dissertations
Bottom-up self-assembly has the potential to fabricate nanostructures with advanced electrical features. DNA templates have been used to enable such self-assembling methods due to their versatility and compatibility with various nanomaterials. This dissertation describes research to advance several different steps of biotemplated nanofabrication, from DNA assembly to characterization. I assembled different nanomaterials including surfactant-coated Au nanorods, DNA-linked Au nanorods and Pd nanoparticles on DNA nanotubes ~10 micrometer long, and on ~400 nm long bar-shaped DNA origami templates. I optimized seeding by changing the surfactant and magnesium ion concentrations in the seeding solution. After successful seeding, I performed electroless plating on …
La Asignación De Género De Los Préstamos En El Sureste De Tejas [The Gender Assignment Of Loans In Southeast Texas], Elsa Guadalupe Magana Orozco
La Asignación De Género De Los Préstamos En El Sureste De Tejas [The Gender Assignment Of Loans In Southeast Texas], Elsa Guadalupe Magana Orozco
Theses and Dissertations
En esta investigación se examina la asignación de género de préstamos del inglés al español en el Valle del Río Grande de Tejas basándose en 32 entrevistas sociolingüistas del Corpus bilingüe del Valle (Christoffersen y Bessett, 2019). Se han llegado a reconocer tres posibles factores que determinan la asignación de género (masculino o femenino) de los préstamos, tales como el sexo biológico, el género fonológico y el género analógico (Poplack, 1982; DuBord, 2004; Montés-Alcalá y Lapidus Shin, 2011). Los resultados muestran un total de 692 préstamos la mayoría fue asignado el género masculino un 50%, mientras 33% fue asignado el …
From Nepantla To Aztlan: Testimonios Of Faculty Mothers Of Color With Disabilities, Maria Bridges
From Nepantla To Aztlan: Testimonios Of Faculty Mothers Of Color With Disabilities, Maria Bridges
Theses and Dissertations
From Nepantla to Aztlan: This dissertation sheds light on the supports and barriers that tenured/tenure-track Faculty Mothers of Color with Disabilities experience/d in their careers as students and faculty. Drawing from Indigenous methodologies (Relationality, Decoloniality, and Autoethnography), Liberation Psychology (Decolonial Designs, Conscientização, and Psicología social de la liberación), and Critical Theories (Latina Critical Theory, Pedagogies of the Home, Autohistoria-teoría and Disability Critical Theory), the researcher uses testimonios/pláticas as a method of inquiry to uncover the experiences of eight Nepantleras, Faculty Mothers of Color with Disabilities. The researcher initially hypothesized that she would find supports and barriers that fell into 4 …
Assessment Of Nitrogen-Based Fertilizer Transport And Microbial Activities In Sandy Soil Profiles In South Texas, Gladys De La Rosa
Assessment Of Nitrogen-Based Fertilizer Transport And Microbial Activities In Sandy Soil Profiles In South Texas, Gladys De La Rosa
Theses and Dissertations
Conventional farming is a common practice in Lower Rio Grande Valley (LRGV) and the application of nitrogen fertilizer is essential for plant growth and support. However, managing the rate of nitrogen that is applied can benefit farmers financially and reduce nitrate leaching that can have an adverse effect on the local environment and aquatic systems, e.g., rivers and estuaries. Sandy soils are more vulnerable to water infiltration due to the large proportion of macropores. This study aims to (i) assess how nitrate from a variety of fertilizers (i.e., synthetic and organic) distributes on the top 60 cm layer of a …
The Role Of Nest Location On The Reproductive Success Of Piping Plovers Breeding At Rockaway Beach, New York, Clara I.D. Arndtsen
The Role Of Nest Location On The Reproductive Success Of Piping Plovers Breeding At Rockaway Beach, New York, Clara I.D. Arndtsen
Theses and Dissertations
The study’s goal was to learn what aspects of the piping plover experience affect reproductive outcomes at Rockaway Beach Endangered Species Nesting Area. Nest location was found to help predict reproductive success. Nests further from American oystercatcher nests were likely to fledge more chicks. Reproductive success was low in 2021.
Gaze In Cats And Dogs, Michael Bogese
Gaze In Cats And Dogs, Michael Bogese
Theses and Dissertations
Domestic dogs (Canis lupus familiaris) developed many behaviors across domestication, one example being gaze behavior. Gaze is the crux of other behaviors that make dogs unique in human-animal dyads, including lookbacks, gaze-following, and participation in an oxytocin feedback loop. Gaze behavior may have been motivated and sustained by evergreen cooperative relationships between dogs and humans (e.g., hunting, service roles). One way to confirm this relationship is to compare dogs to a domesticated species that lacks a protracted history of companionship: the domestic cat (Felis catus). In this study, we compare the gaze duration to owners of …
Problem Solving In Chelonia With Comments On Behavior And Methodological Challenges, Mal Walton
Problem Solving In Chelonia With Comments On Behavior And Methodological Challenges, Mal Walton
Theses and Dissertations
This study presented, to a variety of Chelonia species, a one-solution puzzle box problem. Of the 15 turtles tested, 11 solved the task at least once. Because studies on problem solving in reptiles, specifically Chelonia, are relatively unprecedented, we provide an examination of our methodology, along with suggestions for improvement.
Evaluating The Influence Of The Inclusion Of Liquid Brewers Yeast During Gestation On Ewe And Lamb Performance, Colostrum And Milk Quality, And Transfer Of Passive Immunity In Lambs, Julissa Navarrete
Theses and Dissertations
The microbrewery industry has experienced exponential growth since 2005. As a result, the by-products associated with this industry are becoming increasingly available. One of these by-products is liquid brewers yeast, which is produced in excess during the production of beer. For livestock producers that have access to microbreweries, a potentially economical way to feed their flock would to be repurpose the by-product that would otherwise be disposed. Similarly, microbreweries would benefit from repurposing the liquid brewers yeast as livestock feed, resulting in less waste and a more sustainable beer production system.Researchers have evaluated the effect of liquid brewers yeast supplementation …
Mestiza Teatro: An Examination On The Historical Artform Of The Latina / Chicana Theatre Collective, Cheyenne Felicitas Flores
Mestiza Teatro: An Examination On The Historical Artform Of The Latina / Chicana Theatre Collective, Cheyenne Felicitas Flores
Theses and Dissertations
Teatro groups were a form of devised theatre that came to shape after the influential times of the Chicano National Movement of the 1960s and 70s. Due to its strong relationship with the movement, teatro became the epitome of performance culture for the Chicano/Latino public. But as Chicana scholars argue, the female narrative on stage through the use of teatro was limited, static, dichotomous, and misrepresented. This confining restriction to seeing Latina performers only as mothers, strippers, maids, and other stereotypical roles is still present today. This paper aims to articulate that this gender-subordinate representation has a history in formation, …
The Experience Of Friendship As A Characteristic Of Intimate Relationships: A Grounded Theory Study, Jennifer Griffith
The Experience Of Friendship As A Characteristic Of Intimate Relationships: A Grounded Theory Study, Jennifer Griffith
Theses and Dissertations
The purpose of this study was to gain a greater understanding of the construct of friendship, specifically how intimate partners experience friendship in intimate relationships. 45 participants were interviewed one-time (for a total of 60-90 minutes) and asked about their experience of healthy and unhealthy behaviors, including friendship, in committed relationships. Research questions included: how participants define the concept of friendship, behaviors that perpetuate friendship in intimate relationships, perceived benefits of friendship, and what a lack of friendship in their relationship looks like. Participants were asked about friendship generally with the hope that information on the research questions would be …
Method And Interpretation: Gadamer And The Limits Of Methods In Qualitative Research, Jared C. Parker
Method And Interpretation: Gadamer And The Limits Of Methods In Qualitative Research, Jared C. Parker
Theses and Dissertations
Qualitative modes of research have been working their way into the mainstream of psychological research. Unfortunately, social psychology has largely resisted this trend, despite the particular utility of qualitative research for investigating social phenomena. Curiously, as qualitative research becomes more widely accepted in psychology, much of the discourse surrounding these approaches has revolved around the procedural dimensions of qualitative inquiry. Specifically, it has focused on developing, describing, and defending various codified approaches to qualitative data analysis. Recently, this methodological paradigm has come under some criticism, with scholars critiquing codified methods as leading to shallow, superficial, and formulaic research. Others have …
Watercolor Of Surface Water Reservoirs In West Java, Indonesia Using Satellite Remote Sensing Data, Cavien Izack Marcelyno Satia
Watercolor Of Surface Water Reservoirs In West Java, Indonesia Using Satellite Remote Sensing Data, Cavien Izack Marcelyno Satia
Theses and Dissertations
Freshwater sources such as lakes, rivers, and reservoirs are essential part of water supply for irrigation, recreation, and most importantly, public and domestic water usage globally. Compared to groundwater that require costly facilities and infrastructure, freshwater source from reservoir can be treated efficiently and effectively to quickly meet public demand. In Indonesia, particularly, in the island of Java, there is a scarcity of freshwater source. There is less than 5% of available freshwater, which creates multiple water management issues such as water depletion during extensive pumping and dry period, and pollution of water due to high nutrient and wastewater input …
Ethanol-Induced Impacts On Nervous System Development And Dopamine Transporter Characterization In Schmidtea Mediterranea Planaria, Brennen Covely
Ethanol-Induced Impacts On Nervous System Development And Dopamine Transporter Characterization In Schmidtea Mediterranea Planaria, Brennen Covely
Theses and Dissertations
Fetal alcohol spectrum disorders (FASD) are diagnosed in 2-5% of newborns, but the biology underlying FASD is poorly understood and challenging to study with existing model organisms. A new model for FASD research is Schmidtea mediterranea (Smed) planaria. Smed have a remarkable ability to regenerate their central nervous system (CNS), and possess a well-studied, simple genome. Previous studies have shown that ethanol exposure delays this regeneration, yet this relationship is not fully understood. Here, we show that alcohol exposure affects Smed in a dose-dependent manner, eliciting characteristic withdrawal-like behaviors and impacting cognitive function. Interestingly, prior exposure does not alter subsequent …
#Savequicksilver: How Fans Of The Mcu Established Their Fan Identities After Pietro’S False Introduction In The Disney + Series Wandavision, Isabela Scaturro
#Savequicksilver: How Fans Of The Mcu Established Their Fan Identities After Pietro’S False Introduction In The Disney + Series Wandavision, Isabela Scaturro
Theses and Dissertations
The Marvel Cinematic Universe has one of the largest fandoms in the world, thus making this fandom crucial for fandom studies. In this study, I examine how fan interactions demonstrate fan identities and fandom hierarchies after a particular character in the MCU’s first Disney+ series WandaVision was reintroduced and caused a controversy about the actor playing the character . Fans used the hashtag #SaveQuicksilver to express their feelings about Pietro, a character who was brought back into the MCU as a different actor and became a random character in the MCU. This is significant in fan studies because it caused …
Quantifying Protein Quality To Understand Protein Homeostasis, Hsien-Jung Lavender Lin
Quantifying Protein Quality To Understand Protein Homeostasis, Hsien-Jung Lavender Lin
Theses and Dissertations
Proteins are the center of all biochemical reactions in living organisms. Proteins need to be present at the right time, in the right place, with the correct concentration and have the right shape to carry their designated function. Protein homeostasis is when all proteins in the proteome are in functional balance, and such balance is maintained by synthesis, folding, and degradation machinery. When protein homeostasis is lost, organisms start to age and develop diseases. To truly unveil disease mechanisms and provide more efficient means for treatment and prevention, we need a holistic understanding of the mechanism of protein homeostasis. Currently, …
Genomic Analysis And Therapeutic Development Of Bacteriophages To Treat Bacterial Infections And Parasitic Infestations, Daniel W. Thompson
Genomic Analysis And Therapeutic Development Of Bacteriophages To Treat Bacterial Infections And Parasitic Infestations, Daniel W. Thompson
Theses and Dissertations
Microbiomes are an extremely vast and complex network of microorganisms. Bacteriophages are a key factor in the microbial health of an ecological system and impact the evolution of pathogenic bacterial strains. Bacteria and the phages that infect them have an intricate relationship due to the dependency on the bacterial host for phage replication, the ability of the phage to lyse and kill its host, and the horizontal gene transfer between the host and phage. This thesis aimed to understand how bacteria and the bacteriophages that infect them impact an ecological system, with a focus on disease states. By analyzing all …
The Regulation Of Oxidative Stress In Age-Related Diseases, Jesica Burkhart
The Regulation Of Oxidative Stress In Age-Related Diseases, Jesica Burkhart
Theses and Dissertations
Oxidative stress and mitochondrial dysfunction have been linked to multiple age-related diseases including common neurodegenerative diseases Alzheimer's disease (AD) and Parkinson’s disease (PD). A gene found to regulated oxidative stress and aging is a stress response gene p38 MAPK (p38K). Oxidative stress arises when the over production of reactive oxygen species (ROS) from within the cell or from environmental stimuli outweighs its clearance by antioxidants. This cascade leads to DNA damage, mitochondrial damage, and cell death. Mitochondrial dysfunction and oxidative stress are markers for biological aging. As we age mitochondrial DNA becomes more sensitive to damages and mutations. When the …
Lydia’S Urn: Exploring Trauma, Non-Binary Identity, And Plural Subjectivity Via Metamodern Gaming, A Creative Dissertation, Eric Jason Pitman
Lydia’S Urn: Exploring Trauma, Non-Binary Identity, And Plural Subjectivity Via Metamodern Gaming, A Creative Dissertation, Eric Jason Pitman
Theses and Dissertations
Not all non-binary folks, commonly called “enbies,” but also considered trans, often experience gender dysphoria in a manner like the descriptions provided in the fifth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). For example, the manual tends towards definitions that include primarily, trans folk who specifically desire the opposite gender they were labeled at birth. However, this does not describe nonbinary/genderqueer folk, and those enbies who do report gender dysphoria cover some diagnostic criteria, primarily that associated with a feeling of frustration with gender signifiers and an overall sense of discord between one’s assigned gender identity …
Disinfection Byproducts In Wastewater, Swimming Pools, And Tea: Identification, Quantification, And Drivers Of Toxicity, Caroline O. Granger
Disinfection Byproducts In Wastewater, Swimming Pools, And Tea: Identification, Quantification, And Drivers Of Toxicity, Caroline O. Granger
Theses and Dissertations
Drinking water disinfection is considered one of the greatest scientific achievements of the 20th Century because it significantly reduced the number of deaths related to waterborne diseases. However, in 1974 J.J. Rook discovered that chlorine, a commonly used disinfectant, can react with natural organic matter to form disinfection byproducts (DBPs). Since then, more than 700 DBPs have been identified, with several epidemiological and toxicological studies linking DBPs to several adverse health effects such as bladder and colorectal cancer, adverse birth outcomes, and asthma. Due to their ubiquity in disinfected water and their adverse health effects, studying the formation and identifying …
Neurochemical, Molecular, And Behavioral Effects Of Intranasal Insulin, Jennifer Marie Erichsen
Neurochemical, Molecular, And Behavioral Effects Of Intranasal Insulin, Jennifer Marie Erichsen
Theses and Dissertations
Age-related cognitive decline (ARCD) is one of the most dreaded aspects of growing old and a public health concern. Unfortunately, there is currently no treatment that effectively ameliorates ARCD. In recent decades, intranasal insulin (INI) has demonstrated promising memory enhancements for rodents and individuals with Alzheimer’s disease, both in basic science research laboratories and multi-center clinical trials. Other studies have shown INI improves memory and cognition in healthy rodents and humans, indicating that INI may hold promise as a successful ARCD therapeutic. However, there is a glaring lack of evidence regarding how INI produces these effects. The goal of these …
Role Of Ahr In The Epigenetic Regulation Of Immune Cells In Lungs During Acute Respiratory Distress Syndrome, Bryan Latrell Holloman
Role Of Ahr In The Epigenetic Regulation Of Immune Cells In Lungs During Acute Respiratory Distress Syndrome, Bryan Latrell Holloman
Theses and Dissertations
Acute lung injury and acute respiratory distress syndrome (ALI/ARDS) arises from pulmonary inflammatory diseases that stem from direct and indirect activation of immune cells. Severe complications from ALI/ARDS arise when inflammatory mediators initiate an overzealous immune response leading to the destruction of lung epithelial cell barriers, which causes systematic oxygen deprivation. Infiltrating innate immune cells drive the immune response during the acute phase of a lung injury. However, I3C, a naturally occurring AhR ligand found in cruciferous vegetables such as broccoli, collard greens, and kale, plays a crucial role in suppressing inflammatory mediators through its immunomodulatory functionality, which regulates both …
Molecular Theoretical Model For Lipid Bilayers: Adsorption Of Lipidated Proteins On Lipid Bilayers As A Function Of Bilayer Composition And Curvature, Shauna Celeste Kennard
Molecular Theoretical Model For Lipid Bilayers: Adsorption Of Lipidated Proteins On Lipid Bilayers As A Function Of Bilayer Composition And Curvature, Shauna Celeste Kennard
Theses and Dissertations
Protein localization on biological membranes is motivated by either highly selective recognition of specific target membrane components or nonspecific attraction to general physical properties of the membrane, such as charge, lipid heterogeneity, and curvature. Here we discuss the interaction between lipidated proteins and lipid bilayer membranes from a comprehensive examination of how features of the membrane and its lipid constituents, including lipid composition, headgroup size, degree of tail saturation, tail length (bilayer thickness), and membrane geometry, affect the adsorption ability of the proteins. Of key importance is the strong interconnection among these compositional and morphological elements of the membrane in …
The Apoe Ε4 Allele Association With Cholesterol Related Phenotypes In The Mexican American Population, Stephanie Lozano
The Apoe Ε4 Allele Association With Cholesterol Related Phenotypes In The Mexican American Population, Stephanie Lozano
Theses and Dissertations
Diseases linked to high cholesterol have been well studied and several diseases-associated candidate genes have been suggested. Among these, the apolipoprotein E gene (APOE) gene associated with lipid metabolism and lipid-related traits was reported in the non-Hispanic population. There are three types of alleles APOE ε2, ε3, and ε4. The APOE ε4 allele has been identified as a biomarker for Alzheimer’s disease (AD) and cardiovascular disease (CVD). In recent years, there have been limited studies regarding the association between the APOE gene and hypercholesterolemia in the Mexican American population. Therefore, the aim of this study is to investigate …
Targeting Mutated Kras And Galectin-1 In Pancreatic Cancer, Ana Izavelle Martinez Bulnes
Targeting Mutated Kras And Galectin-1 In Pancreatic Cancer, Ana Izavelle Martinez Bulnes
Theses and Dissertations
The poor patient survival rate in pancreatic ductal adenocarcinoma (PDAC) remains a challenge. KRAS activating point mutation on codon-12 is found in 70–95 percent of PDAC patients, and no progress in inhibiting KRAS has been obtained thus far. KRASG12D is a transcription factor that controls cell proliferation, differentiation, and apoptosis. Recent preliminary and published research indicates that Galectin-1 (Gal-1) levels are high in both PDAC and stromal cells, which modulates tumor microenvironment and metastasis. As a result, we created a new combination treatment for PDAC that targets both proliferation and metastasis in PDAC by targeting mutant KRASG12D and Gal-1. This …
Associative Learning In The Monodelphis Domestica Utilizing The Cpa Paradigm, Joseph Caleb Cantu
Associative Learning In The Monodelphis Domestica Utilizing The Cpa Paradigm, Joseph Caleb Cantu
Theses and Dissertations
This study aims to investigate associative learning in the Monodelphis domestica by utilizing the conditioned place aversion paradigm (CPA). The Monodelphis domestica has been used as an animal model for research in multiple fields; however, there is still little information regarding associative learning or utilizing a CPA paradigm. Expanding the literature of the Monodelphis domestica would be adding to the limited research concerning associative learning utilizing the CPA paradigm.
Effects Of Nutrient Enrichment On Mangrove And Saltmarsh Habitats, Elena A. Flores
Effects Of Nutrient Enrichment On Mangrove And Saltmarsh Habitats, Elena A. Flores
Theses and Dissertations
Nutrient over-enrichment is a global threat to coastal and marine environments. Yet, system-specific attributes of estuarine and coastal ecosystems may result in large differences in their sensitivity and susceptibility to such threat. In tropical latitudes, plant species adapted to low-nutrient habitats generally have nutrient-conservation mechanisms that acquire, use, and internally recycle nutrients efficiently. Thus, a major challenge for managers and decision makers is to develop a predictive and holistic understanding of how nutrient loading alters ecosystem functions and therefore ecosystem services. The objective of the present research is to document short and long-term effects of persistent nutrient …
The Examination Of Psychophysiological Effects Of Multisensory Imagery Marketing Strategy. A Triangulation In 3 Studies, Sasawan Heingraj
The Examination Of Psychophysiological Effects Of Multisensory Imagery Marketing Strategy. A Triangulation In 3 Studies, Sasawan Heingraj
Theses and Dissertations
Multisensory imagery marketing strategy has been extensively suggested to be one of the advertising strategies that can generate long-term brand awareness, brand image, and authentic experience in a highly competitive market condition. This dissertation explored the psychophysiological effects of multisensory imagery marketing strategy on consumers' attitudes. Results from study 1 suggested that consumers’ masculine-feminine self-concept played an important role when evaluating multisensory imagery marketing messages. Specifically, consumers who exhibited a lower degree of masculine self-concept and those with feminine self-concept were likely to evaluate multisensory imagery marketing messages more positively than their higher masculine self-concept counterparts. We also found that …
Increasing Practical Verbal Behavior In Esports Players, Victoria Perry German
Increasing Practical Verbal Behavior In Esports Players, Victoria Perry German
Theses and Dissertations
Verbal behavior, sports, and performance skills have been targeted in behavior analytic research in the past. However, no research to date has targeted Esports as a setting, nor has there been a substantial focus on communication as a target as opposed to more technical skills in sports, organizations, or similar settings. Esports is a large, growing industry of competitive videogaming, with a variety of games represented at different levels, many of which are team-based and require significant coordination and cooperation between players on a team. Thus, in this study we targeted verbal responses in a team of collegiate Esports players …
Characterization Of The Responses To Chronic Stress In Caenorhabditis Elegans, Amy Laura Knight
Characterization Of The Responses To Chronic Stress In Caenorhabditis Elegans, Amy Laura Knight
Theses and Dissertations
Exposure to chronic temperature stress influences organismal phenotypes that are important for human health, agriculture, and ecology. In this thesis, the model organism Caenorhabditis elegans was used to study the effects of temperature stress on reproduction and lifespan. It was found that worms demonstrated a rapid shut down in egg-laying between 18-24 hours of exposure to 28°C. Despite this reproductive defect, the overall lifespan of worms was unaffected. At the molecular level, heat shock factor 1 (HSF-1), a regulator of the protective molecular pathway known as the heat shock response (HSR), was identified as important for progeny production during heat …
Water-Soluble Porphyrin Complexes For The Biological Inactivation Of Fentanyl, Anneli Nina
Water-Soluble Porphyrin Complexes For The Biological Inactivation Of Fentanyl, Anneli Nina
Theses and Dissertations
This work aimed to investigate the degradation of fentanyl in aqueous solutions using unsupported water-soluble cobalt(III) porphyrins (55 and 56), AuNP supported water-soluble cobalt(III) porphyrins (67 and 68), and liposome supported water-soluble cobalt(III) porphyrins (69 and 70). Complexes 55, 56, 68, and 69 have been shown to remove fentanyl from aqueous solutions at 37 ºC. The degradation of fentanyl, and the identification of breakdown products were analyzed with the use of time-of-flight mass spectrometry (TOFMS). Complex 55 has been shown to completely degrade fentanyl at 37 ºC in as little as two hours with a 400 mol% catalyst loading. Complex …