https://s3.us-east-1.amazonaws.com/libra-easystore-production.lib.virginia.edu/libraetd/fn106z48v/1_Milo_Elizabeth_2018_BS.pdf?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Checksum-Mode=ENABLED&X-Amz-Credential=AKIAIKM6AN7XWPD7CIUA%2F20260816%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20260816T192100Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&x-id=GetObject&X-Amz-Signature=f1f86ae8404537e89e7be6415ab2831b90affce4db4aa062d457ce60b8573a66