Tag: Poster C8

Climate Change Adaptations for Salmon in Indigenous Cultures

Presenter: Mia Schauffler

Journalism

Poster Presentation

C8

Pacific salmon populations are currently in decline. Due to a history of exploitation of their environment, certain types of salmon are at risk of extinction. Along with overfishing and fishery practices, climate change is considered a large factor in the depletion of salmon. Although the destruction of salmon affects all types of cultures, many indigenous cultures depend heavily on salmon for sustenance and as part of their culture. A study on the St’át’imc tribe provides a number of adaptation strategies such as alternative sources of protein like deer or the more abundant pink salmon. Salmon hold an integral place in native communities and the adaptation strategies to maintain salmon are explored and initiated. These communities had traditional ways of maintaining salmon populations before the exploitation of their ecosystems disturbed the species. A combination of these traditional strategies and innovative adaptation techniques must be considered in order to maintain the diversity and quantity of pacific salmon.

How Smartphone Use during Walking Affects Ability to React to an Unexpected Event in Young Adults

Presenter: Deborah Wang

Mentors: Li-Shan Chou and On-Yee Lo, Human Physiology

Poster: C8

Major: Human Physiology

College students often engage in risky mobile phone behaviors. Though texting while driving has been an extensively studied, the issue of texting or other smartphone usage while walking has only been recently examined as a daily hazard. This project focused on how smartphone usage affected a person’s response to an unexpected event when the subject was looking intently at the screen. This study examined the failure rate as the subject stopped in front of a projected line, and associated gait characteristics including stride length, center of mass (COM) velocity and COM medial-lateral sway. In this experiment, whole body motion was collected with 29 reflective bony landmark markers and a 10-camera system. Subjects first stopped in front of a projected line at the same location, and with the same timing for 5 trials (expected condition, EX). Subjects were then asked to stop in front of the line projected at different times or locations for 10 trials (unexpected condition, UN), and then simultaneously completing a Stroop test on an iPod touch under the same unexpected condition for another 10 trials (UN_Stroop). A Stroop test has subjects pick the ink color a word of a color (IE green, blue or red) is written in (IE green, blue or red). This made the UN_Stroop condition the most challenging. UN and UN_Stroop had a higher failure rate than the 0% of EX (33% and 17% respectively). Furthermore, with smartphone usage, gait velocity and stride length decreased while medial-lateral sway increased, which could negatively impact pedestrian safety.