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Source-goal events involve an object moving from the Source to the Goal. In this work, we focus on the representation of the object, which has received relatively less attention in the study of Source-goal events. Specifically, this study aims to investigate the mapping between language and mental representations of object locations in transfer-of-possession events (e.g. throwing, giving). We investigate two different grammatical factors that may influence the representation of object location in transfer-of-possession events: (a) grammatical aspect (e.g. threw vs. was throwing) and (b) verb semantics (guaranteed transfer, e.g. give vs. no guaranteed transfer, e.g. throw). We conducted a visual-world eye-tracking study using a novel webcam-based eye-tracking paradigm (Webgazer; Papoutsaki et al., 2016) to investigate how grammatical aspect and verb semantics in the linguistic input guide the real-time and final representations of object locations. We show that grammatical cues guide the real-time and final representations of object locations. 

The abundances of free-living species have changed dramatically in recent decades, but little is known about change in the abundance of parasitic species. We investigated whether populations of several parasites have shifted over time in two shore crab hosts, Hemigrapsus oregonensis and Hemigrapsus nudus, by comparing the prevalence and abundance of three parasite taxa in a historical dataset (1969–1970) to contemporary parasite abundance (2018–2020) for hosts collected from 11 intertidal sites located from Oregon, USA, to British Columbia, Canada. Our data suggest that the abundance of the parasitic isopod Portunion conformis has varied around a stable mean for the past 50 years. No change over time was observed for larval acanthocephalans. However, larval microphallid trematodes increased in prevalence over time among H. oregonensis hosts, from a mean of 8.4–61.8% between the historical and contemporary time points. The substantial increase in the prevalence of larval microphallid trematodes could be owing to increased abundances of their bird final hosts, increased production of parasite infective stages by snail intermediate hosts or both. Our study highlights the variability among parasite species in their temporal trajectories of change. 

Responsive to broadening participation in computing challenges, a collaborative network of higher education, non-profit organizations, K-12 schools, industry representatives, and other stakeholders has been established in Mississippi. Collective alliance initiatives are focused on current and arising challenges in access to computer science and technical education among under-resourced citizens. One program resulting from statewide partnerships that shows promise is the Mississippi Coding Academies. Originally designed to serve the emerging workforce of recent high school students not on a college-bound trajectory, the program is also providing a pathway for persons currently in the workforce who want to retool for the digital economy and accelerate income opportunity and growth. The approach to formal assessment with results thus far, and plans for longitudinal evaluation of the success of this program, is presented. 

Computational thinking is becoming increasingly essential to the development of a competitive and innovative workforce. This study examines work by researchers and practitioners in Mississippi to provide pathways for learning that make computing education accessible for all citizens. Assessments from a K-12 teacher professional development program will be discussed, in addition to outcomes from one year of a workforce development program.