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Articles 1 - 30 of 64
Full-Text Articles in Genetics and Genomics
Consequences Of Spatial Structure In Soil–Geomorphic Data On The Results Of Machine Learning Models, Daehyun Kim, Insang Song, Lorrayne Miralha, Daniel R. Hirmas, Ryan W. Mcewan, Tom G. Mueller, Pavel Samonil
Consequences Of Spatial Structure In Soil–Geomorphic Data On The Results Of Machine Learning Models, Daehyun Kim, Insang Song, Lorrayne Miralha, Daniel R. Hirmas, Ryan W. Mcewan, Tom G. Mueller, Pavel Samonil
Biology Faculty Publications
In this paper, we examined the degree to which inherent spatial structure in soil properties influences the outcomes of machine learning (ML) approaches to predicting soil spatial variability. We compared the performances of four ML algorithms (support vector machine, artificial neural network, random forest, and random forest for spatial data) against two non-ML algorithms (ordinary least squares regression and spatial filtering regression). None of the ML algorithms produced residuals that had lower mean values or were less autocorrelated over space compared with the non-ML approaches. We recommend the use of random forest when a soil variable of interest is weakly …
Association Of The Abcb1 Gene Polymorphism And Infertility In Azoospermia Males In Iraqi Kurdish Population, Muhsin Jamil Abdulwahid
Association Of The Abcb1 Gene Polymorphism And Infertility In Azoospermia Males In Iraqi Kurdish Population, Muhsin Jamil Abdulwahid
Polytechnic Journal
P-glycoprotein (P-gp), a product of the ABCB1 gene (ATP binding cassette subfamily B member 1) or MDR: multiple drug resistance 1 gene is expressed in various parts of the human body, like testis. The ABCB1 gene has several single nucleotide polymorphisms in its exons and introns that have been discovered. This study used DNA sequencing and polymerase chain reaction (PCR) to discover and characterize nucleotide variations in exons 27 of the ABCB1 gene in seven infertile and three normally fertile individuals. In this study, a set of primers were designed using the NCBI primer designing tool to amplify 394bp the …
Engaging Students In A Genetics Course-Based Undergraduate Research Experience Utilizing Caenorhabditis Elegans In Hybrid Learning To Explore Human Disease Gene Variants, Natalie Forte, Virginia Veasey, Bethany Christie, Amira Carter, Marli Hanks, Alan Holderfield, Taylor Houston, Anil Challa, Ashley Turner
Engaging Students In A Genetics Course-Based Undergraduate Research Experience Utilizing Caenorhabditis Elegans In Hybrid Learning To Explore Human Disease Gene Variants, Natalie Forte, Virginia Veasey, Bethany Christie, Amira Carter, Marli Hanks, Alan Holderfield, Taylor Houston, Anil Challa, Ashley Turner
Research, Publications & Creative Work
Genetic analysis in model systems using bioinformatic approaches provides a rich context for a concrete and conceptual understanding of gene structure and function. With the intent to engage students in research and explore disease biology utilizing the nematode Caenorhabditis elegans model, we developed a semester-long course-based undergraduate research experience (CURE) in a hybrid (online/in-person) learning environment—the gene-editing and evolutionary nematode exploration CURE (GENE-CURE). Using a combination of bioinformatic and molecular genetic tools, students performed structure-function analysis of disease-associated variants of uncertain significance (VUS) in human orthologs. With the aid of a series of workshop-style research sessions, students worked in teams …
Multiple Light Signaling Pathways Control Solar Tracking In Sunflowers, Christopher J. Brooks, Hagop S. Atamian, Stacey L. Harmer
Multiple Light Signaling Pathways Control Solar Tracking In Sunflowers, Christopher J. Brooks, Hagop S. Atamian, Stacey L. Harmer
Biology, Chemistry, and Environmental Sciences Faculty Articles and Research
Sunflowers are famous for their ability to track the sun throughout the day and then reorient at night to face east the following morning. This occurs by differential growth patterns, with the east sides of stems growing more during the day and the west sides of stems growing more at night. This process, termed heliotropism, is generally believed to be a specialized form of phototropism; however, the underlying mechanism is unknown. To better understand heliotropism, we compared gene expression patterns in plants undergoing phototropism in a controlled environment and in plants initiating and maintaining heliotropic growth in the field. We …
South Coast Offshore Crustacean Resource Of Western Australia Harvest Strategy, Department Of Primary Industries And Regional Development, Western Australia
South Coast Offshore Crustacean Resource Of Western Australia Harvest Strategy, Department Of Primary Industries And Regional Development, Western Australia
Fisheries management papers
Harvest strategies for aquatic resources in Western Australia (WA) that are managed by the Department of Primary Industries and Regional Development (DPIRD, the Department) are formal documents that ensures decision-making processes are consistent with the principles of Ecologically Sustainable Development (ESD; Fletcher 2002) and Ecosystem Based Fisheries Management (EBFM; Fletcher et al. 2012). The objectives of ESD are reflected in the objects of the Fish Resources Management Act 1994 (FRMA) and the Aquatic Resources Management Act 2016 (ARMA), which is anticipated replace the FRMA once enacted. At this point, the Fish Resources Management Regulations 1995 (FRMR) is also anticipated to …
Trimeric Complex Interactions Of Antp-Tbp With Tfiieb And Exd Are Involved In The Genetic Control Of Drosophila Melanogaster, Gustavo Jiménez Mejía, Ruben De Jesus Montalvo Mendez, Claudia Dalila Altamirano Torres, Diana Reséndez Pérez
Trimeric Complex Interactions Of Antp-Tbp With Tfiieb And Exd Are Involved In The Genetic Control Of Drosophila Melanogaster, Gustavo Jiménez Mejía, Ruben De Jesus Montalvo Mendez, Claudia Dalila Altamirano Torres, Diana Reséndez Pérez
Research Symposium
Background: Homeoproteins are transcriptional factors (TFs) that shape animal body axes during development. These TFs are highly conserved and represent one of the most fascinating groups of regulatory molecules. Reports shown the multiplicity of interactions in hox proteins, as complexes trimeric involved to transcriptional activity. The study of trimeric complexes in Hox interactome will allow the better understanding of Hox genetic regulation during embryonic development.
Methodology: Using a new combination BiFCFRET approach performed in HEK293, the quantification was performed by FRETTY of ImageJ. Fly crosses were incubated at 25ºC on standard yeast-agar-cornmeal medium. Embryo cuticle preparations were carried out according …
Antp Transcriptional Activity Is Modulated By The Formation Of The Trimeric Antp-Tbp Complexes With Tfiieβ, Exd And Bip2, Norma C. Hernández Bautista, Gustavo Jiménez Mejía, Claudia Altamirano Torres, Diana Reséndez Pérez
Antp Transcriptional Activity Is Modulated By The Formation Of The Trimeric Antp-Tbp Complexes With Tfiieβ, Exd And Bip2, Norma C. Hernández Bautista, Gustavo Jiménez Mejía, Claudia Altamirano Torres, Diana Reséndez Pérez
Research Symposium
Homeoproteins are transcriptional factors that bind to DNA through a highly conserved binding domain known as the homeodomain (HD) which recognizes short regions rich in AT to control the development of the body appendages of organisms. However, their structural and recognition similarities make it difficult to explain how homeoproteins are capable of carrying out their function. Previous results have shown that Antp homeoprotein can establish dimeric interactions with TBP, TFIIEβ, Exd, BIP2 and more recently through BiFC-FRET we confirmed that Antp and TBP can form trimeric complexes with TFIIEβ/Exd/BIP2. Therefore, is important to show how these trimeric complexes modulate Antp …
Determination Of Hfe C282y Mutation And Its Association With The Iron Status And Viral Load In Hiv Patients From Reynosa, Tamaulipas, Juan Carlos Hernández, Marisol Rosas Díaz, Esperanza Milagros García Oropesa, Santos Graciela Montemayor Beltrán, Juana Díaz García, Imelda Ramírez Puente
Determination Of Hfe C282y Mutation And Its Association With The Iron Status And Viral Load In Hiv Patients From Reynosa, Tamaulipas, Juan Carlos Hernández, Marisol Rosas Díaz, Esperanza Milagros García Oropesa, Santos Graciela Montemayor Beltrán, Juana Díaz García, Imelda Ramírez Puente
Research Symposium
Background: The HFE protein has a fundamental role in iron homeostasis, the HFE C282Y mutation prevents the specific function of the protein, causing greater intestinal absorption of iron and intracellular accumulation. The HIV virus causes a disease that attacks the cells of the immune system, mainly CD 4 T lymphocytes inducing their destruction and immunosuppression of the patient. Some viruses have the ability to disrupt cellular metabolic processes during their own replication, such is the case of HIV-1, which is involved in alteration of iron metabolism resulting in an overload of iron.
Methods: An exploratory, descriptive, cross-sectional and prolective study …
Rna World And The Development Of Rna Protocells, Benjamin C. Mayfield
Rna World And The Development Of Rna Protocells, Benjamin C. Mayfield
PANDION: The Osprey Journal of Research and Ideas
Origins of life research, also known as pre-biotic chemistry or astrobiology, aims to unravel the mystery of the first cell’s origin on Earth. This interdisciplinary field encompasses biology, chemistry, and physics, with the primary goal of understanding the conditions necessary for life to emerge from abiotic environments. The RNA world hypothesis suggests that early life initially used RNA instead of DNA to store genomic information and for enzymatic functions. Protocells, membrane-bound entities with metabolic processes and self-replication capabilities, likely preceded the emergence of true cells. The challenges associated with RNA world is currently an active field of research. Advancements in …
Transcriptional Pausing Factor M1bp Regulates Cellular Homeostasis By Suppressing Autophagy And Apoptosis In Drosophila Eye, Anuradha Venkatakrishnan Chimata, Hannah Darnell, Akanksha Raj, Madhuri Kango-Singh
Transcriptional Pausing Factor M1bp Regulates Cellular Homeostasis By Suppressing Autophagy And Apoptosis In Drosophila Eye, Anuradha Venkatakrishnan Chimata, Hannah Darnell, Akanksha Raj, Madhuri Kango-Singh
Biology Faculty Publications
During organogenesis cellular homeostasis plays a crucial role in patterning and growth. The role of promoter proximal pausing of RNA polymerase II, which regulates transcription of several developmental genes by GAGA factor or Motif 1 Binding Protein (M1BP), has not been fully understood in cellular homeostasis. Earlier, we reported that M1BP, a functional homolog of ZKSCAN3, regulates wingless (wg) and caspase-dependent cell death (apoptosis) in the Drosophila eye. Further, blocking apoptosis does not fully rescue the M1BPRNAi phenotype of reduced eye. Therefore, we looked for other possible mechanism(s). In a forward genetic screen, members of the Jun-amino-terminal-(NH2)-Kinase (JNK) pathway …
Anterior Chamber Depth In Mice Is Controlled By Several Quantitative Trait Loci, Demelza R. Larson, Allysa J. Kimber, Kacie J. Meyer, Michael G. Anderson
Anterior Chamber Depth In Mice Is Controlled By Several Quantitative Trait Loci, Demelza R. Larson, Allysa J. Kimber, Kacie J. Meyer, Michael G. Anderson
Biology Faculty Publications
Anterior chamber depth (ACD) is a quantitative trait associated with primary angle closure glaucoma (PACG). Although ACD is highly heritable, known genetic variations explain a small fraction of the phenotypic variability. The purpose of this study was to identify additional ACD-influencing loci using strains of mice. Cohorts of 86 N2 and 111 F2 mice were generated from crosses between recombinant inbred BXD24/TyJ and wild-derived CAST/EiJ mice. Using anterior chamber optical coherence tomography, mice were phenotyped at 10–12 weeks of age, genotyped based on 93 genome-wide SNPs, and subjected to quantitative trait locus (QTL) analysis. In an analysis of ACD among …
A Protocol For Genetic Analysis At Different Stages Of The Nuclear Division Cycle In Neurospora Crassa, Kotaro Tsukada, Shin Hatakeyama, Shuuitsu Tanaka
A Protocol For Genetic Analysis At Different Stages Of The Nuclear Division Cycle In Neurospora Crassa, Kotaro Tsukada, Shin Hatakeyama, Shuuitsu Tanaka
Fungal Genetics Reports
The filamentous fungus Neurospora crassa is an organism that contains multiple nuclei in the asexual conidia and hyphae. Since the nuclei of dormant conidia are arrested at various points in the nuclear division cycle, it has been difficult to analyze drug sensitivity at the specific point of the cycle in N. crassa. In this study, we have established a useful method for analysis at different stages of the nuclear division cycle in N. crassa. This assay will be a reference for researchers to use the synchronized culture in other diverse analyses.
Isolation Of Arabidopsis Thaliana Plants Homozygous For An Insertional Inactivation Mutation Within Atprp4., Sydney Raitz, Timothy D. Trott
Isolation Of Arabidopsis Thaliana Plants Homozygous For An Insertional Inactivation Mutation Within Atprp4., Sydney Raitz, Timothy D. Trott
Research in Biology
The AtPRP4 gene in Arabidopsis thaliana has been shown to function in several specific parts of the plant’s cell wall. It is shown to be expressed in the seeds, radicles, roots, leaves, inflorescences, and embryos of Arabidopsis thaliana. These patterns have suggested unique functions for ATPRP4 in determining cell-type-specific wall structure during the development of a plant as well as contributing to defense reactions against physical damage to the plant and pathogen infection within the plant. In this study, a simple DNA prep was performed on the true leaves of Arabidopsis thaliana. Subsequent PCR reactions were performed using …
Examining The Different Soil Horizons Of White Oak Mountain, Tn And Their Effect On The Soil Microbial Community, Ji Won Moon, Timothy D. Trott
Examining The Different Soil Horizons Of White Oak Mountain, Tn And Their Effect On The Soil Microbial Community, Ji Won Moon, Timothy D. Trott
Research in Biology
Soil microorganisms participate in the diverse interaction within virtually all ecosystems, consequently affecting the associated human and animal population. Identifying how edaphic variables alter the functional and taxonomic diversity of the soil microbial community requires an examination of total microbial soil diversity and abundance. This research study examined the effect of soil depth and horizon on the soil microbial community composition of White Oak Mountain. The soil microbial community was characterized by 16S/18S/ITS rDNA amplicon sequencing of the DNA extract of six samples from the three major soil types identified: HcE, MoE, and uMvC. OTU clustering analysis and both alpha …
The Impact Of Soil Disturbance On Soil Bacterial Community Composition, Marie A. Rodriguez, Mark Peach, Timothy D. Trott
The Impact Of Soil Disturbance On Soil Bacterial Community Composition, Marie A. Rodriguez, Mark Peach, Timothy D. Trott
Research in Biology
Soil bacterial communities are an important part of terrestrial ecosystems due to their roles in biogeochemical cycling processes. Consequently, understanding how soil disturbance affects the soil bacterial diversity is vital to understanding the entire ecosystem. In this study we examined the effects of soil disturbance (by mining) on the soil bacterial community composition from three sites on Bauxite Ridge in Southeast Tennessee compared to three undisturbed sites in a nearby location. The soil bacterial community was analyzed by 16S rDNA amplicon sequencing of total DNA extracted from the soil samples collected from each of the six sites. Characterization of the …
N-Acetyltransferase 9 Ameliorates Aβ42-Mediated Neurodegeneration In The Drosophila Eye, Prajakta Deshpande, Anuradha Venkatakrishnan Chimata, Emily E. Snider, Aditi Singh, Madhuri Kango-Singh, Amit Singh
N-Acetyltransferase 9 Ameliorates Aβ42-Mediated Neurodegeneration In The Drosophila Eye, Prajakta Deshpande, Anuradha Venkatakrishnan Chimata, Emily E. Snider, Aditi Singh, Madhuri Kango-Singh, Amit Singh
Biology Faculty Publications
Alzheimer’s disease (AD), a progressive neurodegenerative disorder, manifests as accumulation of amyloid-beta-42 (Aβ42) plaques and intracellular accumulation of neurofibrillary tangles (NFTs) that results in microtubule destabilization. Targeted expression of human Aβ42 (GMR > Aβ42) in developing Drosophila eye retinal neurons results in Aβ42 plaque(s) and mimics AD-like extensive neurodegeneration. However, there remains a gap in our understanding of the underlying mechanism(s) for Aβ42-mediated neurodegeneration. To address this gap in information, we conducted a forward genetic screen, and identified N-acetyltransferase 9 (Mnat9) as a genetic modifier of GMR > Aβ42 neurodegenerative phenotype. Mnat9 is known to stabilize microtubules by inhibiting c-Jun-N- …
Exploring The Interactions Between Sars-Cov-2 And Host Proteins., Sojan Shrestha
Exploring The Interactions Between Sars-Cov-2 And Host Proteins., Sojan Shrestha
School of Biological Sciences: Dissertations, Theses, and Student Research
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causative agent of the current pandemic, Coronavirus Disease 2019 (COVID-19). SARS-CoV-2 is considered to be of zoonotic origin; it originated in non-human animals and was transmitted to humans. Since the early stage of the pandemic, however, the evidence of transmissions from humans to animals (reverse zoonoses) has been found in multiple animal species including mink, white-tailed deer, and pet and zoo animals. Furthermore, secondary zoonotic events of SARS-CoV-2, transmissions from animals to humans, have been also reported. It is suggested that non-human hosts can act as SARS-CoV-2 reservoirs where accumulated …
Characterization Of Etoxazole Resistance In Tetranychus Urticae Populations Collected From Commercial Greenhouses & Fields In Ontario, Jeremy Spenler
Characterization Of Etoxazole Resistance In Tetranychus Urticae Populations Collected From Commercial Greenhouses & Fields In Ontario, Jeremy Spenler
Electronic Thesis and Dissertation Repository
In this investigation, etoxazole resistance was monitored in two spotted spider mite (TSSM) populations collected from commercial greenhouses in Ontario. The frequency of an etoxazole resistant, recessive target-site mutation, I1017F, in chitin synthase I (CHS1) was tracked within populations over the course of the study. Cytochrome P450 (P450) activity emerged as a possible alternative mechanism to resist etoxazole exposure in one population.
Using genetic crossing between highly resistant mite populations and a susceptible lab population, filial (F1) hybrid populations were created. The recessive I1017F target-site mutation was abolished in F1 hybrids highly susceptible to etoxazole, while elevated P450 …
An Evolutionary Comparative Study Of Congenital Stationary Night Blindness-Associated Trpm1 Genetic Variants Of Uncertain Significance In Horses And Humans Utilizing Caenorhabditis Elegans, Gabrielle Davis
Theses
Congenital stationary night blindness (CSNB) is a heterogeneous collection of genetic diseases affecting the eyes and vision in horses and humans. Current research has implicated several genetic mutations impacting different genes involved in phototransduction and signal transmission, including TRPM1. In horses, genetic mutations in TRPM1 also result in a leopard spotting pattern or leopard complex. The goal of this study is to examine the potential impact of CSNB associated TRPM1 missense variants of uncertain significance (VUS). Previous research in Caenorhabditis elegans have revealed an orthologous TRPM1 gene known as gon-2 that allows for comparative studies. The evolutionary relationship of …
Atomistic Assessment Of Drug-Phospholipid Interactions Consequent To Cancer Treatment: A Study Of Anthracycline Cardiotoxicity, Yara Elsayed Ahmed
Atomistic Assessment Of Drug-Phospholipid Interactions Consequent To Cancer Treatment: A Study Of Anthracycline Cardiotoxicity, Yara Elsayed Ahmed
Theses and Dissertations
Despite being one of the most effective chemotherapeutic agents developed to date, Anthracyclines are notorious for their cardiotoxicity. Their clinical use is frequently limited both in dosage and in prescription due to the severe cardiac damage they cause. The mechanism of anthracycline-induced cardiotoxicity is not yet fully understood. However, it is hypothesized that interactions with the myocardial membrane play an important role in imparting cardiotoxicity. In this study, we use molecular dynamics simulations and density functional theory calculations to study the anthracycline drug molecules and the interactions that they have with the myocardial membrane. We construct a myocardial membrane model …
Illuminating The Drivers Of Genomic Diversification In Lamprologine Cichlids Of The Lower Congo River, Naoko P. Kurata
Illuminating The Drivers Of Genomic Diversification In Lamprologine Cichlids Of The Lower Congo River, Naoko P. Kurata
Dissertations, Theses, and Capstone Projects
Freshwater fishes are extraordinarily diverse, considering their available habitats represent a tiny proportion of the earth’s surface. Rivers connect heterogeneous habitats in a linear form and provide excellent simplified models to understand how aquatic biodiversity evolves. In particular, the lower Congo River (LCR) in west Central Africa consists of a dynamic hydroscape exhibiting extraordinary aquatic biodiversity, endemicity, and morphological and ecological specialization. This system is thus an excellent natural laboratory for understanding complex speciation and population diversification processes. In my research, I explore various drivers of diversification, and adaptive evolution in rheophilic lamprologine cichlids endemic to the LCR, including Lamprologus …
Investigating The Role Of Holoenzyme C In Restoring Replication Following Uv-Induced Dna Damage In Escherichia Coli, Rahul Shimpi
Investigating The Role Of Holoenzyme C In Restoring Replication Following Uv-Induced Dna Damage In Escherichia Coli, Rahul Shimpi
University Honors Theses
The recovery of replication following UV-induced DNA damage in Escherichia coli correlates with the time at which the lesions are repaired, suggesting that the two processes may be coupled. holC encodes the Chi-subunit of replicative DNA polymerase III, and is nonessential for viability, but renders cells hypersensitive to UV-induced damage when mutated, suggesting it may play a specific role in restoring replication when it encounters DNA damage. Here, I characterized the role of HolC in restoring DNA replication following disruption by UV-induced damage. I found that survival following UV in strains deleted for holC was similar to that of strains …
Ethical Issues And Standards Of Responsible Research Conduct And Monitoring In An Adventist Institution Of Higher Learning - The Babcock Experience, Kayode O. Ogunwenmo, Godswill N. Anyasor, Grace O. Tayo
Ethical Issues And Standards Of Responsible Research Conduct And Monitoring In An Adventist Institution Of Higher Learning - The Babcock Experience, Kayode O. Ogunwenmo, Godswill N. Anyasor, Grace O. Tayo
Adventist Human-Subject Researchers Association
Ethical issues and standards of responsible research conduct involving human participants are important considerations in any institution of higher learning and in particular Adventist institutions. Research conduct and ethics are reviewed and approved before they begin by the Babcock University Health Research Ethics Committee (BUHREC)
Development Of Reverse Genetics Tools In The Two-Spotted Spider Mite Tetranychus Urticae, Nivitha Bhaskar
Development Of Reverse Genetics Tools In The Two-Spotted Spider Mite Tetranychus Urticae, Nivitha Bhaskar
Electronic Thesis and Dissertation Repository
Tetranychus urticae, commonly known as the two-spotted spider mite, poses a significant threat to agriculture due to its ability to feed on a diverse range of plant hosts and its strong detoxification abilities in overcoming xenobiotic response. With global warming projected to increase spider mite infestations, it is vital to study the detoxification genes that enable the mite to adapt and survive. The spider mite genome sequence reveals a unique set of detoxification genes that can be studied using RNAi as a promising reverse genetic tool. However, the current genetic toolkit requires improvement. This study examined the effectiveness of …
The Response Of Microcystis And The Microbiome To Exogenous Hydrogen Peroxide, Bryan A. Puma
The Response Of Microcystis And The Microbiome To Exogenous Hydrogen Peroxide, Bryan A. Puma
Masters Theses, 2020-current
Microcystis spp. produce prolific annual blooms in freshwater systems worldwide. The success of these blooms depends heavily on the Microcystis spp. overcoming environmental factors such as oxidative stress caused by reactive oxygen species (ROS) like hydrogen peroxide. Most Microcystis genomes do not contain many genes for responding to oxidative stress, including those that encode the enzyme catalase. Other cyanobacteria such as Prochlorococcus that also lack hydrogen peroxide degrading enzymes have been shown to benefit from partnerships with heterotrophic bacteria. Microcystis spp. may also receive similar benefits from heterotrophic bacteria in the phycosphere. To test this hypothesis, we examined the …
Investigating The Absence Of A Dietary Response At The Neuromuscular Junction In Larval Drosophila Melanogaster, Suzanna Marbach
Investigating The Absence Of A Dietary Response At The Neuromuscular Junction In Larval Drosophila Melanogaster, Suzanna Marbach
Honors Program Theses and Research Projects
Research in Drosophila melanogaster (D. melanogaster) has been growing in order to identify the fundamental processes of human disorders of the central nervous system such as Alzheimer’s disease, diabetes, and other neurological disorders at a molecular level. Altered insulin signaling itself has been linked to widespread nervous system dysfunction including cognitive dysfunction, neuropathies, and susceptibility to neurodegenerative disease. However, knowledge of the cellular mechanisms underlying the effects of insulin on nervous system function is still incomplete. The focus behind investigating the insulin signaling pathway is derived from our observations in the adult D. melanogaster neuromuscular junction (NMJ) to changes in …
Elucidating The Impact Of Sos-Response Timing In On Escherichia Coli Survival Following Treatment With Fluoroquinolone Topoisomerase Inhibitors, Stephanie Schofield
Elucidating The Impact Of Sos-Response Timing In On Escherichia Coli Survival Following Treatment With Fluoroquinolone Topoisomerase Inhibitors, Stephanie Schofield
Honors Scholar Theses
Antibiotic treatment failure is a public health crisis, with a 2019 report stating that roughly 35,000 deaths occur in the United States yearly due to bacterial infections that are unresponsive to antibiotics (1). One complication in the treatment of bacterial infection is antibiotic persistence which further compromises our battle to effectively treat infection. Bacterial persisters can exist in clonal bacterial cultures and can tolerate antibiotic treatment by undergoing reversible phenotypic changes. They can survive drug concentrations that their genetically identical kin cannot. Some persisters remain in a slow growing state and are difficult to target with current antibiotics. A specific …
An Overview Of Viruses And The Infamous Sars-Cov-2, Jake Sun
An Overview Of Viruses And The Infamous Sars-Cov-2, Jake Sun
The Confluence
Background information on viruses is first presented which include topics like evolution, ecology, history, identification, structure, and application. The novel SARS-CoV-2, which causes COVID-19, pandemic originated in Wuhan, China in December 2019. Millions of people were infected with the virus in a short time period causing urgent concern worldwide. The purpose of this review is to provide a brief and general understanding of the SARS-CoV-2 to increase awareness and actions toward preventive measures. COVID-19 is a (+) ssRNA spherical enveloped virion that causes primarily respiratory illnesses. The S protein interacts with ACE-2 receptors on the host cell to gain entry …
Urbanization Affects Web Abundance And Aggregation Of A Funnel‑Weaving Spider, Agelenopsis Pennsylvanica (Agelenidae), Brandi J. Pessman, Madison Hays, Earl Agpawa, Eileen Hebets
Urbanization Affects Web Abundance And Aggregation Of A Funnel‑Weaving Spider, Agelenopsis Pennsylvanica (Agelenidae), Brandi J. Pessman, Madison Hays, Earl Agpawa, Eileen Hebets
Eileen Hebets Publications
Animals distribute themselves within habitats based on a variety of environmental conditions, including those impacted by urbanization. Suspected global declines in urban arthropod biodiversity have required that we examine how urban conditions affect the distribution of this ecologically important group. Throughout North America, funnel-weaving spiders (Agelenidae) are prevalent across urban habitats and actively choose sites to build webs. We compared Agelenopsis pennsylvanica abundance and distribution between two distinct urban habitats: an urban center (university campus) and an urban forest (city park). These urban habitats differed significantly in features like plant diversity and proximity to roads and highways. We searched along …
Past And Present Patterns Of Neutral And Adaptive Genetic Diversity In Wild Mandrills (Mandrillus Sphinx), Anna Weber
Past And Present Patterns Of Neutral And Adaptive Genetic Diversity In Wild Mandrills (Mandrillus Sphinx), Anna Weber
University of New Orleans Theses and Dissertations
Although primates have fascinated researchers and the public alike for generations, one species that has remained enigmatic is the mandrill (Mandrillus sphinx), a large Cercopithecine monkey endemic to Central Africa. Mandrills are currently in decline due to bushmeat hunting, urbanization, and habitat loss. Neutral and adaptive genetic diversity are important tools for understanding evolutionary history and future viability, since diversity influences a species’ ability to adapt to a changing environment. However, thus far, minimal genetic information has been available for wild mandrills. Because of the dense vegetation in their tropical forest habitat, studying wild mandrills has proven to …