Digital Commons Network^™

Characterization Of Exosomes From Melanoma Cells, Kishan Goli

Undergraduate Student Symposium

Melanoma is a specific type of skin cancer associated with the melanocytes developing into malignancy. Melanocytes produce a pigment that provides protection from the sun’s ultraviolet radiation. Melanocytes produce this pigment when ultraviolet radiation hits the skin, causing damage to the epidermis. When the epidermis is damaged, it triggers a signal to produce melanin to protect against ultraviolet radiation. However, too much exposure can cause DNA damage within the epidermis, especially within melanocytes, leading to the inhibition of regulated mitosis. Hence, non-regulated mitosis can lead to excessive melanocyte production, which may result in melanoma. Exosomes are vesicles generated by all …

Bees And Bvocs: Characterization Of Scents From Flowers And What Bees Leave Behind, Chase Pagley, Dana Kraska, Maria Castellon

Undergraduate Student Symposium

Insect pollinators, such as bees, are an essential component to their ecosystem and surrounding plant life. Flowers emit odors, also known as biological volatile organic compounds (BVOCs), to attract bees to themselves during pollination. Additionally, when bees visit flowers, they are known to leave “scent marks” to communicate with other hive members which flowers to select or avoid for pollination. While BVOCs have been identified for many flowering species, there has not been extensive work analyzing odors from flowers that are popular with bee pollinators, such as Bidens alba (Spanish Needle). Furthermore, studies have not explored which odors are scent …

Repurposing Renin-Angiotensin System-Targeting Medications For Later Stage Treatment Of Cerebral Amyloid Angiopathy And Associated Cognitive-Behavioral Deficits In Tg-Swdi Mice, Ariana Hernandez, Chana Vogel, Iliana Uribe, Eleanor Wind, Victoria Pulido-Correa, Mikayla Jeneske, Bianca Echeverria, Julianna Bonetti, Natalia Noto

Undergraduate Student Symposium

Cerebral amyloid angiopathy (CAA), the accumulation of amyloid proteins in the cerebral vasculature, is highly comorbid with Alzheimer’s disease, and on its own, increases the risk of stroke and vascular dementia. Epidemiological studies suggest that certain renin-angiotensin system (RAS)-targeting drugs, commonly used for treating hypertension, decrease the risk of dementia. This study assesses whether two FDA-approved RAS-targeting drugs: telmisartan [a moderately brain-penetrant angiotensin receptor blocker (ARB)], and lisinopril [a brain-penetrant angiotensin-converting enzyme (ACE) inhibitor]; can be repurposed to treat CAA. At ~8 months of age, male and female Tg-SwDI mice (CAA model) began treatment with telmisartan (1 mg/kg/day) or lisinopril …

True Wilds, Justin Abonce, Gabrielle Spankus

Undergraduate Student Symposium

“True Wilds” is a documentary filmed in Miami-Dade County covering the concern of the conservation of South Florida’s Pine Rockland ecosystem. Miami Wilds, a projected water park, was to be built adjacent to Zoo Miami and within their property, which contained most of the remaining Pine Rocklands acreage. The documentary informs viewers on South Florida’s ecological history, displays the opinions of local residents rallying against the construction of Miami Wilds, and brings awareness to the larger ongoing issue of South Florida’s loss of nature to urbanization. The film is directed by Justin Abonce and Gabrielle Spankus. Other crew members include …

The Portrayal Of The Femme Fatale: The Evolution Of Gender Roles In The Depiction Of A Femme Fatale, Esperanza Barrios, Amanda Perez Romero

Undergraduate Student Symposium

When male authors describe the word ‘femme fatale’, it is always a synonym for a seductive woman who brings disaster to an unfortunate male hero. But, when a female author writes the story, the definition changes to women who become victims of patriarchy. In turn, they transform into unfeeling women who use their charms to survive in a world where they are viewed as subdued, mink, and consenting objects for a male’s pride and satisfaction. There are two femme fatales who although they struggled to obtain their happiness, kept striving forward and did not let any difficulty fracture their minds …

Mille-Feuille Magazine Littéraire, Printemps 2024, Pascale-Anne Brault

Mille-Feuille Magazine Littéraire

No abstract provided.

The Chicago Southland International Film Festival Kicks Off At Govstate, Office Of Marketing And Communications

Newsroom

No abstract provided.

Hira Gene Mutation In Arabidopsis Via Crispr, Kelly Chen, Claire Shippy, Tara Phelps-Durr

SACAD: Scholarly Activities

The purpose of this study is to mutate the Histone Repressor A (HIRA) gene in a mustard plant (Arabidopsis) using CRISPR technology. HIRA is a chromatin-remodeling protein that is required for proper development in both plants and animals. Creating new changes (mutations) in HIRA will help us better understand the mechanism of how HIRA regulates transcription, which is important for understanding developmental disorders in animals, as well as how improper development leads to a reduction in crop yields in plants

Social Media Does Not Elicit A Physiological Stress Response As Measured By Heart Rate And Salivary Cortisol Over 20-Minute Sessions Of Cell Phone Use, Suzanne Oppenheimer, Laura Bond, Charity Smith

Biomedical Research Institute Publications and Presentations

The pervasive use of social media has raised concerns about its potential detrimental effects on physical and mental health. Others have demonstrated a relationship between social media use and anxiety, depression, and psychosocial stress. In light of these studies, we examined physiological indicators of stress (heart rate to measure autonomic nervous system activation and cortisol to assess activity of the hypothalamic-pituitary-adrenal axis) associated with social media use and investigated possible moderating influences of sex, age, and psychological parameters. We collected physiological data from 59 subjects ranging in age from 13 to 55 across two cell phone treatments: social media use …

April 3, 2024 (Vol. 108, No. 25), Daily Eastern News

Daily Eastern News: 2023-2024

No abstract provided.

Where Have All The Flowers Gone? A Call For Federal Leadership In Deer Management In The United States, Bernd Blossey, Darragh Hare, Donald M. Waller

Aspen Bibliography

Forests in the United States continue to lose biodiversity and many fail to regenerate due to high deer (family Cervidae) abundance. Declines in biodiversity and overall ecosystem health due to high deer populations increases prevalence of wildlife and human diseases associated with increasing tick abundances and decreases forest resilience and the ability to deliver benefits provided by healthy ecosystems. In the eastern and midwestern United States, white-tailed deer (Odocoileus virginianus) are the main stressor, while in the western U.S. elk (Cervus elaphus) and black-tailed and mule deer (Odocoileus hemionus) can become equally problematic. Federal …

Navigating Murky Waters: State-Level Strategies For Wetland Preservation And Tile Drainage Regulation After Sackett V. Epa, Caleb M. Swanson

Honors Thesis

Wetlands are some of the world’s most valuable ecosystems, serving as provisioners of species habitat, carbon sequestration, flood mitigation, water quality purification, and other ecosystem services. Human development has resulted in substantial wetland loss the world over. In the 1970s, the United States Congress passed the Clean Water Act, giving the EPA broad authority over wetland protection. However, in the summer of 2023, the United States Supreme Court decided Sackett v. EPA, limiting the EPA’s jurisdiction over wetlands to those indistinguishably connected to generally recognized “Waters of the United States” and removing federal protection for millions of acres of wetlands, …

Dihydroceramide Desaturase Governs Endoplasmic Reticulum And Lipid Droplet Homeostasis To Promote Glial Function In The Nervous System, Yuqing Zhu

Arts & Sciences Graduate Student Theses and Dissertations

Dihydroceramide desaturase converts dihydroceramides to ceramides in the final step of de novo ceramide biosynthesis. Reduction of dihydroceramide desaturase DEGS1 function in humans leads to hypomyelinating leukodystrophy-18, but the etiology of this disease remains unclear. Using mutants from a forward genetic screen, we discovered that infertile crescent (ifc), the sole Drosophila dihydroceramide desaturase, governs central nervous system development and morphology. ifc is primarily expressed in glia and acts cell-autonomously in glia to control glial morphology and function during nervous system development. Loss of ifc leads to severe glial defects, particularly in cortex glia, including endoplasmic reticulum expansion, glial swelling, compromised …

Interleukin-1Α And Leukemia Inhibitory Factor Promote Cancer-Induced Extramedullary Hematopoiesis, Derek Arthur George Barisas

Arts & Sciences Graduate Student Theses and Dissertations

Hematopoiesis, the formation of blood and immune cells from stem and progenitor cells, is a central biological process that alters in response to the organismal state. Many cytokines that accompany diseases have an impact on the rate, cellular output, and underlying mechanisms of hematopoiesis. Deepening our understanding of the alterations to hematopoiesis that occur with disease may offer therapeutics that normalize hematopoiesis and promote health. One component of hematopoiesis that is often overlooked are the non-hematopoietic cells of the stem cell niche that have crucial roles in affecting the parameters of hematopoiesis. While progress in understanding the hematopoietic stem cell …

The Lumberjack, April 03, 2024

Cal Poly Humboldt's Student Newspaper

The student newspaper of Humboldt State University.

Sex Differences And Sex‑Specific Regulation Of Motivated Behavior By Melanin‑Concentrating Hormone: A Short Review, Isabel R. K. Kuebler, Mauricio Suárez, Ken T. Wakabayashi

Department of Psychology: Faculty Publications

Recent preclinical research exploring how neuropeptide transmitter systems regulate motivated behavior reveal the increasing importance of sex as a critical biological variable. Neuropeptide systems and their central circuits both contribute to sex differences in a range of motivated behaviors and regulate sex-specific behaviors. In this short review, we explore the current research of how sex as a biological variable influences several distinct motivated behaviors that are modulated by the melanin-concentrating hormone (MCH) neuropeptide system. First, we review how MCH regulates feeding behavior within the context of energy homeostasis differently between male and female rodents. Then, we focus on MCH’s role …

The Parthenon, April 3, 2012, Evan Green, Matthew Schaffer, Sarah Davis, Joseph Dicristofaro, Victoria Ware, Abigail Cutlip, Rafael Alfonso, Scott Price, Baylee Parsons, Emma Gallus, Luke Jeffrey

The Parthenon

No abstract provided.

The Challenges And Opportunities Of Beneficially Reusing Produced Water, Amy Hardberger

Duke Environmental Law & Policy Forum

No abstract provided.

Decoding Affective Information From Neuronal Populations In The Human Hippocampus, Alexander N. Lawriw

LSU Master's Theses

The hippocampus is understood to play a key role in the formation of episodic memories. Prominent theories suggest this is made possible through use of sparse encoding schemes, in which a small number of neurons encode each episodic event using a distinct pattern of neuronal activity. However, more recent computational models suggest that the hippocampus may also be capable of representing semantic structure, a notion previously thought to be exclusive to the neocortex. In our previous line of work, we trained multivariate classifiers to predict the semantic content, specifically affect, of computer-generated faces given spiking data taken from individual neurons …

The Bone Marrow Endothelial Progenitor Cell Response To Septic Infection, Xin Shi, Kevin J. Simms, Thomas J. Ewing, Yuan-Ping Lin, Yi-Ling Chen, John N. Melvan, Robert W. Siggins, Ping Zhang

School of Graduate Studies Faculty Publications

Early increase in the level of endothelial progenitor cells (EPCs) in the systemic circulation occurs in patients with septic infection/sepsis. The significance and underlying mechanisms of this response remain unclear. This study investigated the bone marrow EPC response in adult mice with septic infection induced by intravenous injection (i.v.) of . For experiments, sorted marrow stem/progenitor cells (SPCs) including lineage(lin)stem cell factor receptor (c-kit)stem cell antigen-1 (Sca-1), linc-kit, and lin cells were cultured with or without lipopolysaccharides (LPSs) and recombinant murine vascular endothelial growth factor (VEGF) in the absence and presence of anti-Sca-1 crosslinking antibodies. In a separate set of …

Project-Based Learning: An Online Support Product For Scaffolding The Professional Development In China, Yenny Mo

Instructional Psychology and Technology Graduate Student Projects

This project was a collaboration between Brigham Young University (BYU) in Provo, Utah, U.S.A., and Beijing Normal University (BNU) in Beijing, China. It aimed to enhance the effectiveness of the existing professional development (PD) program at BNU by developing an online support product. The PD program focuses on developing project-based learning (PjBL) cases and its implementation in a classroom.

This online support product that scaffolds the PD program using Articulate Storyline 360. Through a strategic integration of the ADDIE and RP models, I have created a tool that facilitates faster comprehension of PjBL concepts, enables effective design of driving questions, …

2024 April 3 - From My Notepads Newsletter, Office Of The President, East Tennessee State University, Brian Noland

From My Notepads: A Newsletter from President Brian Noland

No abstract provided.

Exploring Benefits And Barriers That Impact The Implementation Of Pediatric Facility Dogs In Child Life Clinical Programs, Brittany Dame

Graduate Theses, Dissertations, and Capstones

The utilization of facility dog interventions is a quickly growing practice among healthcare facilities across the country. Facility dogs have the ability to provide support, a calming presence, and socialization to patients. This intervention is increasingly popular within child life departments at pediatric hospitals. Child life specialists, who are healthcare professionals that provide psychosocial care to pediatric patients and their families, utilize facility dogs to help pediatric patients cope with hospitalization and medical treatments. The implementation of a child life led facility dog program can come with potential barriers and benefits.

The purpose of this study was to explore the …

Meat Consumption Meets Risk Regulation In The United States, Andrew Kelbley

Duke Environmental Law & Policy Forum

No abstract provided.

Swine Influenza A Virus: Challenges And Novel Vaccine Strategies, Erika M. Petro-Turnquist, Matthew J. Pekarek, Eric A. Weaver

Nebraska Center for Virology: Faculty Publications

Swine Influenza A Virus (IAV-S) imposes a significant impact on the pork industry and has been deemed a significant threat to global public health due to its zoonotic potential. The most effective method of preventing IAV-S is vaccination. While there are tremendous efforts to control and prevent IAV-S in vulnerable swine populations, there are considerable challenges in developing a broadly protective vaccine against IAV-S. These challenges include the consistent diversification of IAV-S, increasing the strength and breadth of adaptive immune responses elicited by vaccination, interfering maternal antibody responses, and the induction of vaccine-associated enhanced respiratory disease after vaccination. Current vaccination …

Vitamin D Deficiency In Scheuermann's Disease Is Associated With Increased Adverse Outcomes, Shivan N. Chokshi, Srikanth Mudiganty, Rutledge Carter Clement, William Accousti

School of Medicine Faculty Publications

INTRODUCTION: Scheuermann's disease is a diagnosis of hyperkyphosis commonly encountered in pediatric patients. Studies in animal models suggest an association with vitamin D deficiency, however, extensive studies have not been performed in humans. This study analyzes the role of vitamin D deficiency on unfavorable results in patients with Scheuermann's disease. METHODS: The TriNetX database was utilized to perform a retrospective analysis. Patients in the United States aged 0-18 years with Scheuermann's disease were identified using International Classification of Diseases, Tenth Revision (ICD-10) codes and categorized into those with and without a diagnosis of vitamin D deficiency. Comparison of patient groups …

Antibody-Mediated Targeting Of Human Microglial Leukocyte Ig-Like Receptor B4 Attenuates Amyloid Pathology In A Mouse Model, Jinchao Hou, Yun Chen, Zhangying Cai, Gyu Seong Heo, Carla M Yuede, Zuoxu Wang, Kent Lin, Fareeha Saadi, Tihana Trsan, Aivi T Nguyen, Eleni Constantopoulos, Rachel A Larsen, Yiyang Zhu, Nicole D Wagner, Nolan Mclaughlin, Xinyi Cynthia Kuang, Alexander D Barrow, Dian Li, Yingyue Zhou, Shoutang Wang, Susan Gilfillan, Michael L Gross, Simone Brioschi, Yongjian Liu, David M Holtzman, Marco Colonna

The Brown Foundation: Institute of Molecular Medicine

Microglia help limit the progression of Alzheimer’s disease (AD) by constraining amyloid-β (Aβ) pathology, effected through a balance of activating and inhibitory intracellular signals delivered by distinct cell surface receptors. Human leukocyte Ig-like receptor B4 (LILRB4) is an inhibitory receptor of the immunoglobulin (Ig) superfamily that is expressed on myeloid cells and recognizes apolipoprotein E (ApoE) among other ligands. Here, we find that LILRB4 is highly expressed in microglia of patients with AD. Using mice that accumulate Aβ and carry a transgene encompassing a portion of the LILR region that includes LILRB4, we corroborated abundant LILRB4 expression in microglia …

Spatial-Temporal Variation Of Diarrhea And Associated Sociobehavioral Factors Between 2010-2020 In Rwanda, Amans Ntakarutimana

Walden Dissertations and Doctoral Studies

No abstract provided.

Environmental Dna (Edna) Survey Of Introduced Freshwater Species In Reservoirs And Streams In Hong Kong, Sze Man Yau

Lingnan Theses (MPhil & PhD)

Different organisms have been introduced worldwide both intentionally and unintentionally by humans. Some of the introduced species can establish populations outside their native geographic range and invade the environment, causing negative ecological impacts to the ecosystem. Freshwater ecosystems are prone to species invasion due to the aquatic linkage between freshwater habitats, thus facilitating the dispersal of introduced species. To minimise the potential negative impacts of introduced species, early detection and rapid response is vital. Compared to traditional survey methods (e.g., hand nets and cast nets), environmental DNA (eDNA) survey is a sensitive method for species detection by extracting the species’ …

Conservation Genomics Of Endangered Turtles : The Big-Headed Turtle And The Beale's Eyed Turtle, Wing Him Lee

Lingnan Theses (MPhil & PhD)

Turtles are one of the most threatened animal groups in the world, with 51.3% of the turtle species categorized as globally threatened (critically endangered, endangered and vulnerable) on the IUCN Red List. Overexploitation for the food and pet trade is the main threat, especially for turtles in Asia. In Hong Kong, all five native freshwater turtles are listed as endangered species locally. This study will focus on two species, the Big-headed Turtle (Platysternon megacephalum) and Beale’s Eyed Turtle (Sacalia bealei). Some of the world’s remaining wild populations of P. megacephalum and S. bealei are in Hong …