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Articles 1 - 26 of 26
Full-Text Articles in Life Sciences
Intrinsically Disordered Protein Regions In Human Evolution And As Therapeutic Targets, Karen Paco Mendivil
Intrinsically Disordered Protein Regions In Human Evolution And As Therapeutic Targets, Karen Paco Mendivil
KGI Theses and Dissertations
Intrinsically disordered proteins (IDPs) and IDP regions (IDPRs) fail to form stable structures but have important biological functions via interacting with various molecular partners (proteins, DNA, RNA, glycosaminoglycans). We hypothesized that IDPRs are potential targets for therapeutics development because they are reservoirs of evolutionary innovation, and they play crucial roles in adaptation to pathogens.
We first studied the evolution of IDPRs in the human proteome and compared it with the proteome of non-human primates. We have found that evolutionary young protein-coding genes have included low conserved regions in the N-terminal part of proteins, and such regions are linked to high …
Point Of Care Infectious Disease Diagnosis Via Isothermal Nucleic Acid Amplification Integrated Into A Sample To Answer Device, Abrar Al Maghribi
Point Of Care Infectious Disease Diagnosis Via Isothermal Nucleic Acid Amplification Integrated Into A Sample To Answer Device, Abrar Al Maghribi
KGI Theses and Dissertations
Sexually transmitted infections caused by Chlamydia trachomatous (CT) and Neisseria gonorrhea (NG) are often under-diagnosed, miss-diagnosed, and not properly treated, leading to long term complications such as ectopic pregnancy and infertility, and to emergence of drug resistance. Dengue virus (DENV) infections can cause dengue fever (DF), which if not properly managed can lead to Dengue hemorrhagic fever (DHF) and dengue shock syndrome (DSS), causing significant morbidity and mortality. In both cases, early and accurate detection at the point of care is critical to facilitate proper patient care and disease management. Nucleic acid amplification tests (NAATs) provide suitable sensitivity and specificity, …
Qualitative Analysis Of A Resource Management Model And Its Application To The Past And Future Of Endangered Whale Populations, Glenn Ledder
Qualitative Analysis Of A Resource Management Model And Its Application To The Past And Future Of Endangered Whale Populations, Glenn Ledder
CODEE Journal
Observed whale dynamics show drastic historical population declines, some of which have not been reversed in spite of restrictions on harvesting. This phenomenon is not explained by traditional predator prey models, but we can do better by using models that incorporate more sophisticated assumptions about consumer-resource interaction. To that end, we derive the Holling type 3 consumption rate model and use it in a one-variable differential equation obtained by treating the predator population in a predator-prey model as a parameter rather than a dynamic variable. The resulting model produces dynamics in which low and high consumption levels lead to single …
Primer Payload System For Higher-Order Multiplex Lamp: Design And Development Of Unit Processes, Tochukwu Dubem Anyaduba
Primer Payload System For Higher-Order Multiplex Lamp: Design And Development Of Unit Processes, Tochukwu Dubem Anyaduba
KGI Theses and Dissertations
Design and Development of Platforms for the Application of Loop-mediated Isothermal Nucleic Acid Amplification, LAMP, in the Diagnosis of Polymicrobial Diseases
Tochukwu Dubem Anyaduba, Travis Schlappi (PI)
For the past two decades, several isothermal nucleic acid amplification technologies have emerged. These are mostly in response to the need for robust molecular diagnostic tools amenable to point-of-care and limited-resource settings. Of these, loop-mediated isothermal amplification, LAMP, stands out as a highly specific and rapid alternative to the polymerase chain reaction, PCR. One of LAMP's significant characteristics involves using four essential and two loop (rate increasing) primers to recognize six to eight …
Vascular Plants Of Northern Death Valley National Park (Death Valley, Last Chance Range, And Eureka Valley), Inyo County, California, Hester L. Bell, Sarah J. De Groot, Steve E. Schoenig
Vascular Plants Of Northern Death Valley National Park (Death Valley, Last Chance Range, And Eureka Valley), Inyo County, California, Hester L. Bell, Sarah J. De Groot, Steve E. Schoenig
Aliso: A Journal of Systematic and Floristic Botany
The northern portion of Death Valley National Park closely (but not entirely) corresponds to the northernmost portion of the Mojave Desert in California. From 2014 through 2019 we surveyed the vascular plants in the Eureka Valley, northern Last Chance Range, and northern Death Valley. This study area covers 1735 sq km and ranges in elevation from 810 to 2577 m; it contains the tallest sand dunes in California, a calcium-rich mountain range, and alkaline seeps. These features provide specialized habitats for narrowly and regionally endemic plants. Fossil data from packrat middens suggest that the local climate has become warmer and …
List Of Bryophytes Collected In The Northern Last Chance Range And Eureka Valley, Death Valley National Park, Sarah J. De Groot
List Of Bryophytes Collected In The Northern Last Chance Range And Eureka Valley, Death Valley National Park, Sarah J. De Groot
Aliso: A Journal of Systematic and Floristic Botany
A list of bryophytes occurring naturally in northern Death Valley National Park is presented. So far, 41 taxa have been documented, representing seven families and 24 genera. One species, Jaffueliobryum wrightii, is considered rare by the California Native Plant Society.
Identification And Sequence Analysis Of Set Superfamily Genes In Hymenopteran Insects, Tanima Joshi
Identification And Sequence Analysis Of Set Superfamily Genes In Hymenopteran Insects, Tanima Joshi
Scripps Senior Theses
Post-translational chemical modifications of histones, the proteins that package DNA, are a key component of the “language” of epigenetics. SET (Suppressor of Variegation 39, Enhancer of Zeste, Trithorax) domain-containing proteins are crucial enzymes that establish histone methylations as a major part of the histone code. Studies using the fruit fly, Drosophila melanogaster, as a model organism have provided most of the known information on SET genes/protein diversity and function in insects. To expand our knowledge of this important protein family, I identified all SET domain-containing genes in a select group of insects belonging to the Hymenoptera order: wasps, bees, ants, …
Racial Disparities In Liver Disease In The Us: Addressing The High Prevalence Of Hepatitis B Infection In The Apia Community, Lindsey L. Trinh, Lindsey Trinh
Racial Disparities In Liver Disease In The Us: Addressing The High Prevalence Of Hepatitis B Infection In The Apia Community, Lindsey L. Trinh, Lindsey Trinh
Scripps Senior Theses
Chronic liver disease and hepatocellular carcinoma are some of the leading causes of death in the United States, resulting in a number of annual deaths that has only increased over the past several decades. A vast proportion of these liver-related deaths is due to chronic hepatitis B infection, which currently affects approximately 1.2 million people in the US. However, the hepatitis B virus does not affect every racial group in the United States equally: Asian Americans experience a disproportionately high prevalence of HBV infection. In fact, even though the APIA community comprises only 4% of the US population, they account …
Transactivation And Mitochondrial Activity Are Affected By High Temperature In C. Elegans Sperm, Jacqueline Mcvay
Transactivation And Mitochondrial Activity Are Affected By High Temperature In C. Elegans Sperm, Jacqueline Mcvay
Scripps Senior Theses
Sexual reproduction has a conserved flaw in that it is temperature sensitive. Exposure to high temperature leads to male infertility, but little is known about the underlying mechanism. Understanding these mechanisms is important for agriculture and reproductive medicine. Using C. elegans, we investigated two potential aspects of male fertility that may be affected by high temperature conditions: activation of sperm by seminal fluid and sperm mitochondrial activity. There are two pathways for sperm activation in C. elegans: the SPE-8 pathway in hermaphrodites and the TRY-5 pathway in male seminal fluid. Hermaphrodite sperm with a mutation in spe-8 can …
Cost Of Co-Infection In Peromyscus Leucopus Mice, Ananya Sagar
Cost Of Co-Infection In Peromyscus Leucopus Mice, Ananya Sagar
Scripps Senior Theses
Abstract
Co-infections occur frequently across humans & wildlife, and can have effects on host health. Despite the prevalence of microparasite-helminth co-infections, majority of the research focuses either on singular infections or on concurrent infections in a laboratory setting. This fails to take into account the interspecific interactions between the multiple parasites and the host in natural settings. The interactions could be direct by resource competition, or indirect via the host immune system. In our research, we studied the relationship between nematodes and coccidia in their host, Peromyscus leucopus mice, at the Mountain Lake Biological Station, Virginia. We further evaluated the …
An Evaluation Of Antiparasitics Used To Treat The Sea Louse, Caligus Rogercresseyi, In Chilean Salmonid Farming, Dayla Woller
An Evaluation Of Antiparasitics Used To Treat The Sea Louse, Caligus Rogercresseyi, In Chilean Salmonid Farming, Dayla Woller
Scripps Senior Theses
Sea lice pose a global threat to open-net salmonid farming. As Chile is the second largest Atlantic salmon producer, they have a vested interest in mitigating infestations and increasing production. However, this will not be possible without 1) increased research on the underlying mechanisms behind sea lice infestations that will inform 2) governmental regulation of salmon farming. This increase in research and governmental regulation will only be possible through transparency on pesticide practices and sea louse monitoring data from companies operating in Chile. Taking these steps would bring Chile closer to being the largest producer of Atlantic salmon and an …
The Intersection Between Black Hair And The Environment: Hair As A Site For Environmental Justice And Sustainability, Dafina Matiku
The Intersection Between Black Hair And The Environment: Hair As A Site For Environmental Justice And Sustainability, Dafina Matiku
Scripps Senior Theses
Currently, we are facing several global crises that include but are not limited to climate change, food insecurity, pollution of the body and environment, as well as racial, gender, and class inequities. This thesis seeks to understand how the natural hair movement, which strives to omit toxic chemicals while embracing textured hair, can be a tool of reconnecting to nature. As humans we are intrinsically part of ecosystems and nature, we must find our niche in it instead of occupying and destroying our environment entirely. The methodology includes compiling a small array of experiences that show the nuance of hair …
Diversifying Participation: The Rarity Of Reporting Racial Demographics In Neuroimaging Research, Madeline Goldfarb
Diversifying Participation: The Rarity Of Reporting Racial Demographics In Neuroimaging Research, Madeline Goldfarb
Pitzer Senior Theses
Background: Functional neuroimaging techniques have been instrumental to progress in the cognitive and behavioral sciences; however, their increasing prevalence has evoked conversations concerning limitations associated with reproducibility and bias (Gilmore et al., 2017). While the literature has explored several mechanisms driving issues of replicability, few discussions have considered the effects of confounding social and environmental variables such as age, sex, socioeconomic status, and race (Sauce & Matzel, 2013). The prevailing racial, cultural, and socioeconomic bias in scientific research and the methodological limitations of EEG perpetuate racial and ethnic homogeneity in participation, eliciting qualms regarding the generalizability of findings (Henrich et …
The Impact Of Tidal Elevation And Climate Change On The Growth And Performance Of Balanus Glandula, Sam Martin
The Impact Of Tidal Elevation And Climate Change On The Growth And Performance Of Balanus Glandula, Sam Martin
Pitzer Senior Theses
Tidal elevation affects the survival, growth, and performance of intertidal organisms because it regulates their exposure to heat, waves, food availability, and a variety of other abiotic factors. While previous research has explored the relationship between temperature and the performance of the barnacle Balanus glandula, there are unanswered questions about how tidal elevation affects B. glandula performance and growth. I compared the growth of B. glandula at three tidal elevations in Friday Harbor, Washington, and estimated the metabolic cost of emersion at each tidal elevation using a cost equation gained from thermal performance curves and average daily maximum temperatures. …
Heat Stress During Larval Stages On Coral Survivorship For M. Capitata, Sarah Woo
Heat Stress During Larval Stages On Coral Survivorship For M. Capitata, Sarah Woo
Pitzer Senior Theses
Very little is known about how heat stress during larvae stages effect larvae survivorship, early coral recruit settlement, and later stage coral survivorship. We focused on determining how heat stress during larvae stages effected Montipora capitata survivorship over time. After thermally stressing larvae, we asked how many larvae survived the treatment, how the treatment affected settlement, how many larvae survived the heat treatment but did not settle, and later stage coral survivorship experienced residual effects from the heat stress treatment. We exposed coral larvae to ambient seawater temperatures at 30°C and heated seawater temperatures to 34°C for an hour and …
Environmental Controls On The Spatial Distribution Of Greenfin Darters And Biodiversity In The Blue Ridge Mountains, Dri Tattersfield
Environmental Controls On The Spatial Distribution Of Greenfin Darters And Biodiversity In The Blue Ridge Mountains, Dri Tattersfield
CMC Senior Theses
Disproportionate concentrations of biodiversity in mountains worldwide suggest linkages between geologic processes and biodiversity that are not yet well understood. The Tennessee River Basin in the Blue Ridge Mountains of the southeastern U.S. is a global hotspot for freshwater fish biodiversity. To investigate drivers of biodiversity in the Tennessee River Basin, and explore links to geologic processes, I study the Greenfin Darter (Nothonotus chlorobranchius), a small fish endemic to the upper Tennessee River Basin. I use generalized linear models (GLMs) to evaluate the influence of topography, lithology, climate and land use on the distribution of the Greenfin Darter, …
Understanding The Epigenetic Role Of 8-Oxoguanine And Ogg1 In Non-Small Cell Lung Cancer, Kyrellos Ibrahim
Understanding The Epigenetic Role Of 8-Oxoguanine And Ogg1 In Non-Small Cell Lung Cancer, Kyrellos Ibrahim
CMC Senior Theses
Oxidative damage to the genome can form 8-oxoguanine (oxoG), a premutagenic lesion suggested to play an epigenetic role in the regulation of various cellular pathways. Alongside oxoG in this regulation is the 8-oxoguanine DNA glycosylase (OGG1), which primarily functions to repair oxoG damage via base excision repair, but is also implicated in recruiting NFκB and impacting gene expression associated with cancer growth. This proposal aims to build genome-wide maps of oxoG occupancy, and indirectly OGG1 localization, in healthy lung cells and in non-small cell lung cancer adenocarcinoma cells in order to identify regulatory regions in the genome at which oxoG …
The Impacts Of External Patient Variables On Gene Expression Profiles Of Lung Adenocarcinomas, Michael Madsen
The Impacts Of External Patient Variables On Gene Expression Profiles Of Lung Adenocarcinomas, Michael Madsen
CMC Senior Theses
The search for improvements to detection and treatment of cancers is a paramount goal for all of medicine. The most important step for oncological research is to expand the knowledge base of the genetic characteristics and abnormalities that give rise to cancer. In our present day, one of the most pressing and deadly forms of cancer is that of the lung, with lung adenocarcinomas being the most prevalent variation of the disease. Improving our cancer genomic insight can provide the seedings for improved cancer detection, novel cancer treatment, and serve as a guide for avenues to explore with future oncological …
Examining A Functional Interaction Between Chromatin Remodeler Chd1 And Histone H1 In D. Melanogaster, Breanna Kim
Examining A Functional Interaction Between Chromatin Remodeler Chd1 And Histone H1 In D. Melanogaster, Breanna Kim
Scripps Senior Theses
Chromodomain-helicase-DNA-binding-protein-1 (CHD1) is a highly conserved ATP- dependent remodeling protein. It is localized to active genes and directs nucleosome spacing, while its loss has been linked to various human diseases, such as human prostate cancer. In Drosophila, CHD1 is important for fertility and wing development, and overexpression of CHD1 leads to severe wing vein defect phenotypes. The Linker Histone H1, which is known for maintaining heterochromatin and is associated with inactive genes, had been previously identified as a possible functional partner of CHD1, though the exact nature of their interaction is unclear. I undertook a genetic approach to examining the …
Neither “Post-War” Nor Post-Pregnancy Paranoia: How America’S War On Drugs Continues To Perpetuate Disparate Incarceration Outcomes For Pregnant, Substance-Involved Offenders, Becca S. Zimmerman
Neither “Post-War” Nor Post-Pregnancy Paranoia: How America’S War On Drugs Continues To Perpetuate Disparate Incarceration Outcomes For Pregnant, Substance-Involved Offenders, Becca S. Zimmerman
Pitzer Senior Theses
This thesis investigates the unique interactions between pregnancy, substance involvement, and race as they relate to the War on Drugs and the hyper-incarceration of women. Using ordinary least square regression analyses and data from the Bureau of Justice Statistics’ 2016 Survey of Prison Inmates, I examine if (and how) pregnancy status, drug use, race, and their interactions influence two length of incarceration outcomes: sentence length and amount of time spent in jail between arrest and imprisonment. The results collectively indicate that pregnancy decreases length of incarceration outcomes for those offenders who are not substance-involved but not evenhandedly -- benefitting white …
Morphological Changes In Dorsal Root Ganglia Macrophages Associated With Neuropathic Pain Mechanisms Suggest A Novel Target For Chronic Pain Therapy, Emily Kussick
CMC Senior Theses
The present study examined morphological changes in the dorsal root ganglia (DRG) following an innate immune stimulus. The importance of the DRG has increasingly become recognized in pain processing as more than just the home of primary afferent cell bodies. All sensory information passes through the DRG via the primary afferents, and on to the spinal cord. The primary afferents synapse with second-order neurons in the spinal cord that ascend towards the brain, where they transmit the pain signal to the limbic forebrain and/or the somatosensory cortex for processing. The DRG is an interesting niche to study at as it …
More Than A Myth: The Benefits Of Incorporating Holistic Healing Methods From Native American And Mexican Cultures To Approach Opioid Use Disorder (Oud) Treatment, Juliana Favela
CMC Senior Theses
Opioid Use Disorder (OUD) is a substance use disorder that characterizes a dependence on and an addiction to opioids. Opioids attack the prefrontal cortex, the dopaminergic reward system, and the hypothalamic-pituitary-adrenal (HPA) axis which is responsible for the body’s stress response. Opioids constantly shift one’s “set point” to the point where normal actions that cause joy and excitement no longer cause those feelings, resulting in craving and dependence. The opioid epidemic is currently ravaging the United States and has disproportionately affected Native American populations specifically in the rural areas (Tipps, et.al, 2018). The current methods for addressing OUD include medicine …
Using Nmr Spectroscopy And Computational Chemistry To Confirm The Structure Of Novel Antibiotic Nocamycin O, Stephanie Lewis
Using Nmr Spectroscopy And Computational Chemistry To Confirm The Structure Of Novel Antibiotic Nocamycin O, Stephanie Lewis
CMC Senior Theses
In recent years, many medically promising antibiotics have been discovered in nature, especially in insect-microbe symbioses. One of the better-studied examples of this kind of defensive relationship is that of fungus-growing ants and the antibiotic-producing Actinobacteria. These bacteria produce several defensive chemicals with myriad uses, including one antibiotic that inhibits the growth of several bacterial strains, including other Actinobacteria. This antibiotic (known as nocamycin O) is a promising candidate for medicinal use due to its similarities to bacterial RNA polymerase inhibitors tirandamycin and streptolydigin, which inhibit several human pathogens. The determination of the structure of nocamycin O will be an …
Will There Be Changes In Sexually Differentiated Behaviors In Mice Manipulated For The Sry Gene As They Mature Into Adultood?, Subin Joo
CMC Senior Theses
Sexually differentiated behavior has been shown to be affected by both genes and hormones. The discovery of the SRY gene, which codes for the development of testes, lead to the development of the Four Core Genotypes model of mice, and the separation of sex chromosomes and its resulting gonadal hormones. Using the FCG model, this study aims to look at the development of sexually differentiated behavior in mice, and track how it changes throughout their life. FCG mice will be divided into individual and social housing, and repeated experiments carried out to test their reaction to both intact female and …
Assessing The Significance Of Substrate Color And Temperature On Balanus Glandula Growth And Survivorship, Nhi Phan
CMC Senior Theses
The body temperatures of intertidal species are strongly dependent on the temperature of their external environment. This study sought to understand the impact of a substrate’s color and subsequent temperature on Balanus glandula in order to predict the potential effects of warming temperatures from climate change on intertidal species. Barnacles were allowed to settle and grow on three differently colored plates and were photographically monitored over the course of eleven weeks. Settlement and survivorship were recorded on-site, while growth was tracked utilizing digital imaging software. It was hypothesized that barnacles on peach plates would perform the best since the ambient …
Subjective Value Of Previous Item Is Encoded During Valuation In Event-Related Potentials, Madeline Valdez
Subjective Value Of Previous Item Is Encoded During Valuation In Event-Related Potentials, Madeline Valdez
CMC Senior Theses
Research in economics and neuroscience has shown that an item’s value is subjective, in that it depends on the circumstances and preferences of the observer rather than the item’s inherent properties. In particular, value can be affected by the context in which an item is presented: for example, an apple might look more appealing if it is offered right after something less tasty, such as broccoli, than after something tempting like chocolate cake. Consistent with this idea, studies using invasive electrophysiology have shown that value signals corresponding to the current item are modulated by the value of the previously encountered …