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Physical Sciences and Mathematics Commons

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Full-Text Articles in Physical Sciences and Mathematics

Enhancing Student Ability To Transfer Energy Concepts In Postsecondary Science Education Through Explicit Instruction Of Concepts, Student Self-Reflection, And Guided Practice In Knowledge Transfer, Jim Harmon, Lauren Gray May 2018

Enhancing Student Ability To Transfer Energy Concepts In Postsecondary Science Education Through Explicit Instruction Of Concepts, Student Self-Reflection, And Guided Practice In Knowledge Transfer, Jim Harmon, Lauren Gray

Scholars Week

While concepts of energy and matter apply across science disciplines, students have difficulty transferring their knowledge of energy concepts from one science discipline to another. Traditionally, instruction of physical sciences, chemistry, and life sciences are presented independently of one another; with energy concepts introduced in isolated contexts and with differing emphases. Two instructional strategies have been shown to improve student transfer of knowledge: metacognitive student reflection, and explicit framing of concepts. This study integrates these instructional strategies into an introductory physics course for non-science majors as a series of instructional interventions, measuring student ability to transfer knowledge of energy concepts …


Locate And Mitigate The State Of Nitrate: Assessing Potential Sources Of Nutrients In Tributaries To The Nooksack River, Alyssa Peter, Melanie Roy May 2018

Locate And Mitigate The State Of Nitrate: Assessing Potential Sources Of Nutrients In Tributaries To The Nooksack River, Alyssa Peter, Melanie Roy

Scholars Week

Anthropogenic activities greatly increase the amount of nitrogen entering our environment. While this allows for increased agriculture production, excess nitrogen raises health concerns for humans and ecosystems. Understanding the sources of excess nutrients is necessary for effective efforts to reduce them. We aimed to understand nutrient fluxes through tributaries to the Nooksack River, in particular, to what extent are excess nutrients arriving to northern Whatcom County from Canada via both surface and ground water. We collected water samples from three creeks fed by the central portion of the Sumas-Blaine aquifer (Kamm, Fishtrap, and Bertrand), two situated at the southern edge …


Modeling And Forecasting Crime Patterns In Bellingham, Washington, Zachary Domingo, Eric Shoner May 2018

Modeling And Forecasting Crime Patterns In Bellingham, Washington, Zachary Domingo, Eric Shoner

Scholars Week

Our purpose is to use time series analysis to model and forecast the underlying dynamics behind crime in Bellingham, Washington. Using recent monthly data from the Bellingham Police Department, we considered singular spectrum analysis and autoregressive moving average modelling techniques to estimate significant deterministic patterns in the data. After examining the multitude of data provided, we narrowed down to two categories of crime: alcohol offenses and domestic violence. We created two time series models for each category and compared them to each other. The better performing model was used to forecast the number of crime incidents for ten months and …


Short-Term Volatility Curve Predictions Using Singular Spectrum Analysis, Nick Odell May 2018

Short-Term Volatility Curve Predictions Using Singular Spectrum Analysis, Nick Odell

Scholars Week

This project aims to produce accurate volatility forecasts, using high-frequency financial time series data. The primary mathematical methods used are Functional Data Analysis, time series analysis techniques such as Autoregressive Models and a comparison between Multi-variate and Uni-variate Singular Spectrum Analysis. These results aim to be useful for financial risk quantification.


Connection: An Autism-Focused Dating App, Cyrena Johnson May 2018

Connection: An Autism-Focused Dating App, Cyrena Johnson

Scholars Week

30% of US internet users 18-29 use dating apps to find partners. Meanwhile, only 9% of adults with autism are married—and there are no popular dating apps designed for ASDs. We propose the app Connection, a dating app designed for the autistic community. Using queries and informal analysis, we created possible features and prototype displays for Connection to show its future application.


Modeling Current Flow In Nanoparticle Doped Polymer Film Systems, David Seaman, Joshua Spradlin, Janelle Leger, Armin Rahmani May 2018

Modeling Current Flow In Nanoparticle Doped Polymer Film Systems, David Seaman, Joshua Spradlin, Janelle Leger, Armin Rahmani

Scholars Week

Nanoparticle-doped polymer systems have elicited great interest for their ability to exhibit an electrical hysteresis, which can be applied to bistable organic memory devices. Such hysteresis is characterized by the ability maintain different currents at the same voltage, upon increasing and decreasing the voltage. Developing a successful theoretical and computational model for this effect could provide insights into what mechanisms are driving the hysteresis. However, while there has been interest in these systems for two decades, there are still open questions regarding modeling their operation mechanism. In this work, we explore a method of modelling these systems that approximates the …