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Information Cascades and Insurance Demand
No full textInsurance markets are susceptible to information cascades if decisions are made using the public information of peer insurance purchases. Given an individual’s risk of loss is challenging to comprehend, insurance buyers may learn whether their peers have purchased the same insurance. A cascade may form, for example, if I forgo insurance because all of my neighbors have also declined insurance, even though my private information suggests I should buy it. Using a laboratory experiment, we investigate whether information cascades form in insurance markets under two scenarios: when risks are correlated and uncorrelated. We also study whether the strength of information cascades in insurance depends upon the perceived relative risk preferences of the reference-peer: compared to me, are they a risky person or safe person
Who Do You Think You Are Talking To?: How Self-Censorship affects the Writing Process and Ethical Consideration of Student Writers
No full textIn this research titled, Who Do You Think You Are Talking To?: How Self-Censorship affects the Writing Process and Ethical Consideration of Student Writers, I am examining the relationship between student perceptions of self-censorship and how it may or may not alter how they write. In my initial research, I was able to learn about historical censorship and academic freedom while also researching counterarguments for self-censorship. Another study that I came across in my research was a broader version of my own study that focused on the general perception of self-censorship in the United States. My research was completed using a survey of college students at any level of education with a variety of majors. The purpose of the research is to lead to a better understanding of how students think of self-censorship and what, if anything, needs to change with education regarding that topic
Un Sabor de la Comida de la Calle Latina Aquí Mismo en Cincinnati
Full text linkhttps://www.exhibit.xavier.edu/latino_reviews/1000/thumbnail.jp
CAFE: Corrective Feedback, Context Memory, and Dopamine
No full textThe purpose of this study is to investigate the cognitive and neurobiological mechanisms by which corrective feedback enhances memory for contextual details, with a focus on dopaminergic prediction error signaling. Previous research (Overman et al., 2021) showed that participants were more likely to remember the font color of feedback displays when their initial response was wrong rather than correct, indicating that corrective feedback may boost episodic encoding through dopamine-related attentional processes. Prediction error is believed to drive better encoding of contextual details. Additionally, dopamine-related processing is involved in conditions such as ADHD and responses to substances like caffeine, which are linked to changes in attention and reward functioning (MacDonald 2024). To test for associations between context memory, attention, and pupil-linked arousal, we created a multimodal experiment combining a feedback-based memory task with pupillometry and a modified Eriksen flanker task (Eriksen, 1995). Participants generated category responses, received corrective or confirmatory feedback, and took a cued recall test to assess memory for both the items and the font color of the feedback. Flanker task performance and pupil dilation were recorded using E-Prime and a Gazepoint desktop eye tracker throughout the experiment. Participants also completed a short survey on ADHD symptoms, caffeine intake, and ADHD medication use. Data have been collected from thirteen participants aged 18–25, and the study will continue through Fall 2025. The findings may help develop strategies for improving feedback in educational settings and enhance understanding of how dopaminergic traits, including those related to attention and stimulant use, influence learning
Biochar and Plant Filtration of Ketamine
No full textKetamine usage, both clinically and recreationally, has been increasing all over the world, leading to more pharmaceutical waste products. More than 90% of a ketamine dose is lost through renal excretion when administered intravenously, releasing unmetabolized ketamine into the environment where both ketamine and its metabolites can bioaccumulate and result in toxicity and death to microcrustaceans and protozoa. However, psychoactive drugs like ketamine are not commonly tested for or removed in wastewater treatment. There is therefore a need for simple and cost-effective strategies for capturing and removing ketamine from the environment. This study evaluated the use of biochar, a material made by burning organic waste products under low oxygen conditions, as a method for ketamine remediation. I evaluated and calibrated methods for measuring ketamine with and without biochar using HPLC-UV, and am developing a batch study to determine the capacity and effectiveness of biochars made from hardwood and softwood materials. These studies will improve our understanding of the effectiveness of different biochars for binding ketamine and inform future experiments where we will combine biochar with lettuce and other plants to optimize ketamine removal
Determining changes in gene expression from microgravity through qRT-PCR
No full textThe effects of microgravity and their impacts on the human body continue to be an important area of research as the process of advancing space exploration continues forward. Skeletal muscles play a substantial role in human health and are greatly impacted by the effects of microgravity. Sialic acid is known to play a crucial role in muscle function and is involved in some muscle loss disorders such as GNE Myopathy. This study aims to determine one possible mechanism of muscle atrophy when exposed to microgravity during spaceflight. The study aims to determine if exposure to microgravity, simulated by hind limb unloading in rats, reduces sialic acid in skeletal muscles, and therefore plays a role in the muscle atrophy experienced by astronauts. To assess muscle sialyation in these rats, qRT-PCR was used to measure the gene expression of several sialidase and sialyltransferase enzymes which regulate sialylation. Although this project is still in progress, we have been able to troubleshoot and refine our protocols greatly and are looking forward to continuing this research in the future
Dylan\u27s Shadows, Part 2
No full textThe second installment of my series tracing shadow imagery in Dylan\u27s work. The emphasis here is upon shadow stalkers, shadow selves, shadow art, and shadow chasing
