Wakulla Springs -- Woodville Karst Plain Research Update

25 slides in Powerpoint presentation

The spaces of relational learning and their impact on student engagement

In this paper, we are interested in developing a rich understanding of what matters about space, particularly for enhancing student engagement and belonging. We will suggest that this first requires an exploration into the relational aspects of learning in order to begin to model the often complicated and diffuse inter-relationships between its cognitive, experiential and emotional dimensions; and second to explore in more depth how these impact on, and are impacted by, material space. We will do this by first outlining what we mean by relational learning, and by student engagement and belonging. We will then propose a relational understanding of material space, aiming to locate learning environments within the larger ‘space’ of learners’ perceptions and experiences more generally. This will be further explored through analyzing a case study that suggests some helpful pointers. Finally, we will offer an outline conceptual model that aims to locate some of the differing qualities of material space across the various dimensions of relational learning. Whilst this model is proposed not as a solution but as a means of encouraging debate, we argue that developing learning spaces that support engagement and belonging as well as effective learning are an important issue for the higher education sector. This is because evidence shows that students’ sense of belonging has a direct impact on their retention and success (Thomas, 2012)

Three-body recombination in a three-state Fermi gas with widely tunable interactions

We investigate the stability of a three spin state mixture of ultracold fermionic $^6$Li atoms over a range of magnetic fields encompassing three Feshbach resonances. For most field values, we attribute decay of the atomic population to three-body processes involving one atom from each spin state and find that the three-body loss coefficient varies by over four orders of magnitude. We observe high stability when at least two of the three scattering lengths are small, rapid loss near the Feshbach resonances, and two unexpected resonant loss features. At our highest fields, where all pairwise scattering lengths are approaching $a_t = -2140 a_0$, we measure a three-body loss coefficient $L_3 \simeq 5\times 10^{-22} \mathrm{cm}^6/\mathrm{s}$ and a trend toward lower decay rates for higher fields indicating that future studies of color superfluidity and trion formation in a SU(3) symmetric Fermi gas may be feasible

NIRSA Championship Series Volunteerism: The Perceived Impact on Professional Development

The National Intramural-Recreational Sports Association (NIRSA) Championship Series (Series) has developed into the primary organization for governing extramural/sport club collegiate recreational tournaments. As NIRSA professionals describe it, the Series has also evolved into a platform for professional development. To date, however, no study has attempted to link professional growth and advancement to volunteerism at Series events. As such, the purpose of this study was to examine skills and competencies that could be correlated with volunteering at Series events. Using Astin’s Input-Environment-Outcome (I-E-O) model the research team explored the environmental impact of the volunteer experience by collecting data in two phases (prevolunteer experience and 3–4 months after the volunteer experience). Results indicated that campus recreation professionals do perceive themselves to be using effective leadership and communication behaviors and that there are no significant differences in professional development based on the NIRSA region of the tournament. Some gendered differences were uncovered, but it appears that a significant number of volunteers returned to work with higher levels of job-related competencies and important networking connections. Possible implications are discussed, including a Series training program based on NIRSA’s core competencies, and areas for future research

Book Reviews

Book reviews by Roger Paul Peters, Stanley J. Parry, George W. Hazlett, Charles E. Sheedy, and Lawrence J. Latto

Physical Activity Reduces Hippocampal Atrophy in Elders at Genetic Risk for Alzheimer\u27s Disease

We examined the impact of physical activity (PA) on longitudinal change in hippocampal volume in cognitively intact older adults at varying genetic risk for the sporadic form of Alzheimer\u27s disease (AD). Hippocampal volume was measured from structural magnetic resonance imaging (MRI) scans administered at baseline and at an 18-month follow-up in 97 healthy, cognitively intact older adults. Participants were classified as High or Low PA based on a self-report questionnaire of frequency and intensity of exercise. Risk status was defined by the presence or absence of the apolipoprotein E-epsilon 4 (APOE-ε4) allele. Four subgroups were studied: Low Risk/High PA (n = 24), Low Risk/Low PA (n = 34), High Risk/High PA (n = 22), and High Risk/Low PA (n = 17). Over the 18 month follow-up interval, hippocampal volume decreased by 3% in the High Risk/Low PA group, but remained stable in the three remaining groups. No main effects or interactions between genetic risk and PA were observed in control brain regions, including the caudate, amygdala, thalamus, pre-central gyrus, caudal middle frontal gyrus, cortical white matter (WM), and total gray matter (GM). These findings suggest that PA may help to preserve hippocampal volume in individuals at increased genetic risk for AD. The protective effects of PA on hippocampal atrophy were not observed in individuals at low risk for AD. These data suggest that individuals at genetic risk for AD should be targeted for increased levels of PA as a means of reducing atrophy in a brain region critical for the formation of episodic memories