Filtering by
- Status: Published
In an effort to address the lack of literature in on-campus active travel, this study aims to investigate the following primary questions:<br/>• What are the modes that students use to travel on campus?<br/>• What are the motivations that underlie the mode choice of students on campus?<br/>My first stage of research involved a series of qualitative investigations. I held one-on-one virtual interviews with students in which I asked them questions about the mode they use and why they feel that their chosen mode works best for them. These interviews served two functions. First, they provided me with insight into the various motivations underlying student mode choice. Second, they provided me with an indication of what explanatory variables should be included in a model of mode choice on campus.<br/>The first half of the research project informed a quantitative survey that was released via the Honors Digest to attract student respondents. Data was gathered on travel behavior as well as relevant explanatory variables.<br/>My analysis involved developing a logit model to predict student mode choice on campus and presenting the model estimation in conjunction with a discussion of student travel motivations based on the qualitative interviews. I use this information to make a recommendation on how campus infrastructure could be modified to better support the needs of the student population.
![148088-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-07/148088-Thumbnail%20Image.png?versionId=dziGSvrvXziiq4weMbUAFWQxDTIKexYW&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240604/us-west-2/s3/aws4_request&X-Amz-Date=20240604T180149Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=da797c14ba9007cf5e63e0ff946af939000e72230b9ad613beec23af2b7329a8&itok=KBLirH05)
Colorimetric assays are an important tool in point-of-care testing that offers several advantages to traditional testing methods such as rapid response times and inexpensive costs. A factor that currently limits the portability and accessibility of these assays are methods that can objectively determine the results of these assays. Current solutions consist of creating a test reader that standardizes the conditions the strip is under before being measured in some way. However, this increases the cost and decreases the portability of these assays. The focus of this study is to create a machine learning algorithm that can objectively determine results of colorimetric assays under varying conditions. To ensure the flexibility of a model to several types of colorimetric assays, three models were trained on the same convolutional neural network with different datasets. The images these models are trained on consist of positive and negative images of ETG, fentanyl, and HPV Antibodies test strips taken under different lighting and background conditions. A fourth model is trained on an image set composed of all three strip types. The results from these models show it is able to predict positive and negative results to a high level of accuracy.
![152247-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-08/152247-Thumbnail%20Image.png?versionId=O0eBpgBJ_lNVSd4by0.uUwI.xWwOm5Xw&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240601/us-west-2/s3/aws4_request&X-Amz-Date=20240601T062232Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=5534f506219a21f4014632fd72bcaf3d1bf9d024ce9e1e49ab6cf91b03592ce2&itok=AreXtG3v)
![152123-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-08/152123-Thumbnail%20Image.png?versionId=jMipKiYd4dPa.8xRup_4_6sAG31nRkZh&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240530/us-west-2/s3/aws4_request&X-Amz-Date=20240530T153824Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=effbadd8af959cd44bec92b372e118f8e8f4068810355af558f787698ae12a57&itok=tS72118i)
![150658-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-08/150658-Thumbnail%20Image.png?versionId=ff42TDKKEcy7k...ZFpZTyEAqK2hAdIi&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240614/us-west-2/s3/aws4_request&X-Amz-Date=20240614T081249Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=3289616ede9dcc484d49ec695dcf68099d5f7586db3bdda218a2c4e7e692b682&itok=7TRqzF4R)
![150705-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-09/150705-Thumbnail%20Image.png?versionId=VvRzj2Xb3r.8QjEuR_Uvn6ULkjyFPyYa&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240614/us-west-2/s3/aws4_request&X-Amz-Date=20240614T144751Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=5a1232ca7080c9130e823ab3ce96ab065d9e1092d2e4db39fbd50df39a6b3564&itok=B9Uv7wHG)
![136100-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-05/136100-Thumbnail%20Image.png?versionId=sy5Wvd6f9JI9p6nVnQYcNieUJ2DXXRsZ&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240530/us-west-2/s3/aws4_request&X-Amz-Date=20240530T153906Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=b7a44e126c110dbc9ad12071e9b15cc19a7077e389a5cb9ffea9c6da8ddf7916&itok=lbCdMeJx)
![136542-Thumbnail Image.png](/s3/files/styles/width_400/public/2021-05/136542-Thumbnail%20Image.png?itok=Ztz_hdLA)
![136151-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-05/136151-Thumbnail%20Image.png?versionId=bHBxjr0iJdZRaFHrz4OxzU5b668N7_xY&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240530/us-west-2/s3/aws4_request&X-Amz-Date=20240530T153906Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=3bf76ffd084a1ffabf570fa15a0ce103021a3be72b2fe7557546c8e788be3cd8&itok=L_0JfzC9)
![136321-Thumbnail Image.png](https://d1rbsgppyrdqq4.cloudfront.net/s3fs-public/styles/width_400/public/2021-05/136321-Thumbnail%20Image.png?versionId=OEG0xETwlWY2AsonqePHofadsPU8Zylz&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIASBVQ3ZQ42ZLA5CUJ/20240614/us-west-2/s3/aws4_request&X-Amz-Date=20240614T142926Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=a63ed4fdb2818d5edf823d33f6657fac54ff3a6789c47f783e16f3445c6fd277&itok=hB1NGMoj)