Physical Sciences and Mathematics Commons^™

Molecular Fossils From Phytoplankton Reveal Secular Pco2 Trend Over The Phanerozoic, Caitlyn R. Witkowski, Johan W. H. Weijers, Brian S. Blais, Stefan Schouten, Jaap S. Sinninghe Damsté

Science and Technology Department Faculty Journal Articles

Past changes in the atmospheric concentration of carbon dioxide (PCO2) have had a major impact on earth system dynamics; yet, reconstructing secular trends of past PCO2 remains a prevalent challenge in paleoclimate studies. The current long-term PCO2reconstructions rely largely on the compilation of many different proxies, often with discrepancies among proxies, particularly for periods older than 100 million years (Ma). Here, we reconstructed Phanerozoic PCO2 from a single proxy: the stable carbon isotopic fractionation associated with photosynthesis (Ɛp) that increases as PCO2 increases. This concept has been widely applied to alkenones, but here, we …

Novel Antibacterial Compounds And Methods Of Making And Using Same, Amit Basu, Christopher W. Reid, Mary Margaret O'Connor, Ethan Lindsay Magno, Mitchell Evan Jamieson, Ryan Daniel Miller

Science and Technology Department Faculty Journal Articles

No abstract provided.

Host-Pathogen Interactions: A Magnificent Battle In An Evolutionary Arms Race, Kirsten L. Hokeness, Stephanie Mott

Science and Technology Department Faculty Journal Articles

This case study introduces students to the complex field of immunology and the wide variety of host-pathogen interactions that drive evolutionary change. The case begins with a basic overview of the phases of the immune response and how each contributes to host defense against an invading pathogen. In order to delve deeper into each phase, students explore the metaphor of a battle in which a host and pathogen are locked in combat in order to understand the individual components of the immune response. Once students successfully understand how the immune system works in general, they are then asked to think …

An Empirical Investigation Of Information Technology Mediated Customer Services In China, Jianhua Xiao, Suhong Li

Information Systems and Analytics Department Faculty Conference Proceedings

Information technology mediated customer service is a reality of the 21st century. More and more companies have moved their customer services from in store and in person to online through computer or mobile devices. Using 208 respondents collected from two Chinese universities, this paper investigates customer preference over two service delivery model (either in store or online) on five type of purchasing (retail, eating-out, banking, travel and entertainment) and their perception difference in customer service quality between those two delivery model. Results show that a majority of Chinese students prefer in store and in person for eating out. For ordering …

Under The Influence, Leonardo Cavicchio

Honors Projects in Mathematics

The purpose of this Honors Capstone entitled Under the Influence is to assess the validity of claims concerning the possible influence of roommates on one another, concerning alcohol on college campuses. This will be done by examining data collected in a prior study conducted over a two-year period. This analysis will focus on how alcohol consumption changes in correlation with the personality factors of roommates over an extended period of time. This secondary analysis of de-identified data will focus on primary and secondary subquestions. The primary question that will be addressed with the data set collected from the University of …

Comparing German And Us Energy Transitions: Centralized Vs. Decentralized Government Approaches, Sarah Greenway

Honors Projects in Science and Technology

The German Energiewende (“energy transition”) is often credited with being the most ambitious renewable energy transition in the world. Germany’s rapid transition is mainly led by their Renewable Energy Act of 2000, which has been amended several times in order to remain relevant during changing conditions. In contrast, the United States’ energy transition seems stagnant and lacks an overall direction from the Federal Government. Despite this, the United States is making progress towards implementing renewable energy technologies due to the efforts of several states. Germany’s transition has experienced a number of challenges along the way, while the United States’ transition …

Feature Detection In Medical Images Using Deep Learning, Anthony Pasquarelli

Honors Projects in Information Systems and Analytics

This project explores the use of deep learning to predict age based on pediatric hand X-Rays. Data from the Radiological Society of North America’s pediatric bone age challenge were used to train and evaluate a convolutional neural network. The project used InceptionV3, a CNN developed by Google, that was pre-trained on ImageNet, a popular online image dataset. Our fine-tuned version of InceptionV3 yielded an average error of less than 10 months between predicted and actual age. This project shows the effectiveness of deep learning in analyzing medical images and the potential for even greater improvements in the future. In addition …

Can Ego Defense Mechanism Help Explain Is Security Dysfunctional Behavior, Abhijit Chaudhury, Debasish Mallick

Information Systems and Analytics Department Faculty Conference Proceedings

IS security behavior studies are becoming popular. To date, much of the research has been based on theories such as the Theory of Planned Behavior, Technology Adoption Model, Rational Choice theory and Theory of Reasoned Action. They view users as rational individuals making conscious utilitarian decisions when there is increasing evidence that security breaches are the result of human behavior such as carelessness, malicious intent, bad habits, and hostility. We propose the ego defense mechanism model, taken from the psychoanalytical world. This model makes no assumption of rationality and has been developed to help understand the roots of dysfunctional behavior …

Interpreting Long Chain N-Alkyl Lipids In Lake Sediments: A Critical Evaluation Of Their Sources And Isotope Signals, Hong Yang, Qin Leng, Katelynn Howard, Kai-Lou Yue

Science and Technology Department Faculty Conference Proceedings

Stable carbon and hydrogen isotopic values of n-alkyl lipids extracted from lake sediments have been widely used for the reconstruction of ancient vegetation, climate, altitude, hydrology, etc. Compound-specific isotope analysis has taken the advantage of source-specific environmental signals from both autochthonous and allochthonous lipids, assuming that long chain n-alkyl lipids are primary derived from terrestrial plants. In recent years, substantial progresses have been made toward lipids produced by lacustrine macrophytes (aquatic plants and macro-algae) regarding their abundance, metabolism, chain length distribution, and isotope values.

Accumulating evidence indicates that long chain (C26– C31) n-alkyl lipids in lacustrine sediments are derived from …

Interpreting Long Chain N-Alkyl Lipids In Lake Sediments: A Critical Evaluation Of Their Sources And Isotope Signals, Hong Yang, Qin Leng, Katelynn Howard, Kai-Lou Yue

Science and Technology Department Faculty Conference Proceedings

Stable carbon and hydrogen isotopic values of n-alkyl lipids extracted from lake sediments have been widely used for the reconstruction of ancient vegetation, climate, altitude, hydrology, etc. Compound-specific isotope analysis has taken the advantage of source-specific environmental signals from both autochthonous and allochthonous lipids, assuming that long chain n-alkyl lipids are primary derived from terrestrial plants. In recent years, substantial progresses have been made toward lipids produced by lacustrine macrophytes (aquatic plants and macro-algae) regarding their abundance, metabolism, chain length distribution, and isotope values.

Accumulating evidence indicates that long chain (C26– C31) n-alkyl lipids in lacustrine sediments are derived from …

A Comparison Of Information Technology Mediated Customer Services Between The U.S. And China, Suhong Li, Hal Records, Robert Behling

Information Systems and Analytics Department Faculty Journal Articles

Information technology mediated customer service is a reality of the 21st century. More and more companies have moved their customer services from in store and in person to online through computer or mobile devices. Using 442 responses collected from one USA university (234 responses) and two Chinese universities (208 responses), the study investigates customer preferences over two service delivery models (either in store or online) on five types of purchasing (retail, eating-out, banking, travel and entertainment) and their perception difference in customer service quality between those two delivery models in the U.S. and China. The results show that the majority …