BGWM as Second Constituent of Complex Matrix Model

Earlier we explained that partition functions of various matrix models can be constructed from that of the cubic Kontsevich model, which, therefore, becomes a basic elementary building block in "M-theory" of matrix models. However, the less topical complex matrix model appeared to be an exception: its decomposition involved not only the Kontsevich tau-function but also another constituent, which we now identify as the Brezin-Gross-Witten (BGW) partition function. The BGW tau-function can be represented either as a generating function of all unitary-matrix integrals or as a Kontsevich-Penner model with potential 1/X (instead of X^3 in the cubic Kontsevich model).Comment: 42 page

Sustainable sips : The impact of framing on reusable cup adoption

Introduction Single-use cups impose significant environmental costs, and despite increased awareness of the climate crisis, many still find it difficult to switch from single-use cups to reusable ones. Research Questions 1) How does framing using reusable cups as a personal (self-positive frame) versus a collective benefit (other-positive frame) affect intentions to use reusable cups? 2) Does barrier perception mediate the impact of framing on intended reusable cup use? (exploratory)? Methods To investigate this, we conducted an online survey manipulating which reusable cup framing type participants saw by randomly assigning 161 participants to read one of three frames: reusable cups as personally beneficial, collectively beneficial, or a control. We then measured how these framing types affected reusable cup use intentions and whether this was mediated by perceived barriers to using them. Results We found no significant differences in reusable cup use intention or perceptions of barriers between conditions, and therefore no mediation of perceived barriers. However, exploratory analyses found a significant negative correlation between perceived barriers against reusable cup use and people's intent to use them. Additionally, we found that participants consistently reported that remembering to use reusable cups, saving space for them, and having to wash them were prominent barriers against reusable cup use. Recommendations Our findings indicate that instead of framing interventions, perceived barriers to reusable cups should be directly addressed by partnering with Reusables to switch from single-use containers to a reusable default. Disclaimer: “UBC SEEDS provides students with the opportunity to share the findings of their studies, as well as their opinions, conclusions and recommendations with the UBC community. The reader should bear in mind that this is a student project/report and is not an official document of UBC. Furthermore readers should bear in mind that these reports may not reflect the current status of activities at UBC. We urge you to contact the research persons mentioned in a report or the SEEDS Coordinator about the current status of the subject matter of a project/report.”Arts, Faculty ofPsychology, Department ofUnreviewedUndergraduat