Alien Registration- Arsenault, Sisly M. (Rumford, Oxford County)

https://digitalmaine.com/alien_docs/13446/thumbnail.jp

UNDERSTANDING MEDIA RICHNESS AND SOCIAL PRESENCE: EXPLORING THE IMPACTS OF MEDIA CHANNELS ON INDIVIDUALS’ LEVELS OF LONELINESS, WELL-BEING, AND BELONGING

Loneliness is a universal part of being human and is detrimental to well-being. The need-to-belong hypothesis claims that individuals frequently having positive interactions with people close to them mitigates their loneliness. Media richness theory adds that rich media channels allow individuals to perceive higher levels of social presence and maintain those vital, close relationships. Understanding how a given media channel impacts online interactions and, in turn, the interactants is vital. This study used a pretest-posttest equivalent groups experimental design to examine if individuals who interacted with a close relationship partner over a rich media channel would have a decrease in their perceived loneliness levels or an increase in their perceived well-being and sense of belonging (pre-interaction to post-interaction) compared to those who communicated via less rich media channels. The results indicated that the richness of a given channel increased with the number of verbal and nonverbal cues the media channel could communicate; video chat had the highest richness, followed by phone calls and text messages. Although texting had a significantly lower level of social presence, participants did not indicate a difference in social presence felt between video chat and phone calls. Neither media richness nor social presence produced an effect on loneliness, well-being, or belongingness. Overall, the findings suggest that, for a healthy population, no channel of communication examined here is better or worse in terms of its effects on short-term loneliness, sense of belonging, and subjective well-being

Mentorship Experiences of College Level Educators: A Phenomenological Study

The purpose of this phenomenological study was to understand the impact that mentorship had on the retention of ten participating educators working at various post-secondary educational institutions. The theory guiding this study was Dansereau’s leader-member theory guided as it pertained to the interactions between a dyadic relationship such as the one represented by one-on-one mentorship. The central research question for this study asked about the mentorship experiences of educators in higher education who have been in the field of education for five years or more. This study used transcendental phenomenological to study the essence of the experiences of 10 educators at post-secondary organizations around the United States. This population of participants was a volunteer-based, convenience sample. The setting for the study was completely virtual, and the researcher utilized Microsoft Teams and secure email to transmit and share information. The data collection methods included interviews, questionnaires, and journal prompts. The analytical approach for the data collected focused on bracketing the researcher out of the experiences prior to coding for similarities and prominent themes. The findings of this research suggest that mentorship may have a positive impact on educator retention at the post-secondary level when effective mentorship practices are consistently implemented over time

Alien Registration- Arsenault, Alice M. (Brewer, Penobscot County)

https://digitalmaine.com/alien_docs/11478/thumbnail.jp

Benchmark of a modified Iterated Perturbation Theory approach on the 3d FCC lattice at strong coupling

The Dynamical Mean-Field theory (DMFT) approach to the Hubbard model requires a method to solve the problem of a quantum impurity in a bath of non-interacting electrons. Iterated Perturbation Theory (IPT) has proven its effectiveness as a solver in many cases of interest. Based on general principles and on comparisons with an essentially exact Continuous-Time Quantum Monte Carlo (CTQMC) solver, here we show that the standard implementation of IPT fails away from half-filling when the interaction strength is much larger than the bandwidth. We propose a slight modification to the IPT algorithm that replaces one of the equations by the requirement that double occupancy calculated with IPT gives the correct value. We call this method IPT-$D$. We recover the Fermi liquid ground state away from half-filling. The Fermi liquid parameters, density of states, chemical potential, energy and specific heat on the FCC lattice are calculated with both IPT-$D$ and CTQMC as benchmark examples. We also calculated the resistivity and the optical conductivity within IPT-$D$. Particle-hole asymmetry persists even at coupling twice the bandwidth. Several algorithms that speed up the calculations are described in appendices.Comment: 17 pages, 15 figures, minor changes to improve clarit