A faster running speed is associated with a greater body weight loss in 100-km ultra-marathoners

In 219 recreational male runners, we investigated changes in body mass, total body water, haematocrit, plasma sodium concentration ([Na(+)]), and urine specific gravity as well as fluid intake during a 100-km ultra-marathon. The athletes lost 1.9 kg (s = 1.4) of body mass, equal to 2.5% (s = 1.8) of body mass (P < 0.001), 0.7 kg (s = 1.0) of predicted skeletal muscle mass (P < 0.001), 0.2 kg (s = 1.3) of predicted fat mass (P < 0.05), and 0.9 L (s = 1.6) of predicted total body water (P < 0.001). Haematocrit decreased (P < 0.001), urine specific gravity (P < 0.001), plasma volume (P < 0.05), and plasma [Na(+)] (P < 0.05) all increased. Change in body mass was related to running speed (r = -0.16, P < 0.05), change in plasma volume was associated with change in plasma [Na(+)] (r = -0.28, P < 0.0001), and change in body mass was related to both change in plasma [Na(+)] (r = -0.36) and change in plasma volume (r = 0.31) (P < 0.0001). The athletes consumed 0.65 L (s = 0.27) fluid per hour. Fluid intake was related to both running speed (r = 0.42, P < 0.0001) and change in body mass (r = 0.23, P = 0.0006), but not post-race plasma [Na(+)] or change in plasma [Na(+)] (P > 0.05). In conclusion, faster runners lost more body mass, runners lost more body mass when they drank less fluid, and faster runners drank more fluid than slower runners.     

Doulas as community health workers: lessons learned from a volunteer program

Doulas, women who primarily provide social support during childbirth, have been associated with a number of positive health outcomes. Because the primary model of practice for doulas is a fee-for-service model in which families privately hire a doula, many expectant women who could benefit from doula support are unable to access the service. The Doulas Care program, located in Ann Arbor, Michigan, represents one model in which doulas provide services without charge. As a result of their extended role in the community, doulas who work with the Doulas Care program have unique educational needs. Through the use of focus groups with the program's volunteer doulas, educational needs related to overcoming barriers to being a doula working in the community were identified. Recommendations for education and training are made to improve the support doulas offer as community health outreach workers.     

Redefining Successful Interpretation in Art Museums

Abstract This article aims to capture the spirit and content of a lively exchange among museum staff members at the Denver Art Museum. It began as a conference call and continued as an online dialogue about how definitions of success have evolved with advances in technology and changing expectations of visitors. Together we explored how DAM staff encourage more active participation in the museum and the creative tension that ensues between visitor co‐creation and institutional control. Woven throughout this conversation are examples that demonstrate the need to move fluidly between high tech and low tech interpretives, onsite and online experiences, and the impact of environments that break down museum stereotypes. It is our hope that this discussion will spark similar dialogues among colleagues in individual institutions and in the profession at large. Readers are encouraged to respond through the blog at Curator’s new website: http://www.curatorjournal.org .     

Book review

Gender & Technology: Empowering Women, Engendering Development** London and New York: Zed Books Ltd. . By Everts, Saskia (1998)

Privatising Agricultural Extension in India** Policy Paper 10, National Centre for Agricultural Economics and Policy Research, P.O. Box 11305, New Delhi 110 012, India, February 2000. 95 p. 64 . By Rasheed Sulaiman V and V.V. Sadamate.     

Intentionally designed thinking and experience spaces: What we learned at summer camp

How do young people experience camp, and how might that experience help us expand our understanding of what is possible in non-formal learning environments? In-depth interviews consisting of forced-choice and open-ended questions were conducted with 59 Concordia Language Villages residential camp participants who partake in a linguistically and culturally enriched grand simulation. This study focused on (1) quantitative assessments of their sense of safety and belonging, and (2) open-ended questions about the nature of the camp environment in general and as a learning place. From the qualitative data, we distilled participants’ sense of camp as a learning place by analysing their responses in terms of theoretically-driven categories of thinking space qualities and data-driven categories of experience space qualities. As a thinking space, participants described the camp environment as a safe space characterized by support for thinking and development, room for identity-supportive interactions, room to experiment, and a place with mentoring adults and a second-home feeling. As an experience space, they emphasized the centrality of the program’s daily activities (particularly simulations), the qualities of the people around them (diverse and community-focused), the physical setting of the program (particularly its aesthetics) and the instructional methods used (particularly language and cultural immersion). The relationship of these findings to our understanding of the nature of the thinking and experience spaces as program-specific and program-general phenomena is discussed.     

The Jewish Educational System—A Plea for Organic Unity

This article analyzes the career commitments and retention patterns among graduates of the DeLeT program (Day School Leadership Through Teaching) who were prepared for day-school teaching at Brandeis University and Hebrew Union College-Jewish Institute of Religion. Employing t-tests to analyze survey responses, we identify factors that shape and support teachers' career commitments to Jewish day schools. Our findings suggest that those who stay in Jewish day school teaching are likely to do so because of more commitment to the Jewish community, greater perception of effective teacher preparation experience, and better school support in comparison to those who leave teaching in this setting. These findings are consistent with a multi-layered understanding of teachers' lives and career commitments, which is illustrated in the interaction between person, program, and setting.     

Predicting Robust Learning With the Visual Form of the Moment-by-Moment Learning Curve

We present a new method for analyzing a student's learning over time for a specific skill: analysis of the graph of the student's moment-by-moment learning over time. Moment-by-moment learning is calculated using a data-mined model that assesses the probability that a student learned a skill or concept at a specific time during learning (Baker, Goldstein, & Heffernan, 2010 Baker, R. S. J. d., Goldstein, A. B. and Heffernan, N. T. 2010. “Detecting the moment of learning”. In Proceedings of the 10th Annual Conference on Intelligent Tutoring Systems 25–34. In V. Aleven, J. Kay, & J. Mostow (Eds.),pp.Heidelberg, Germany: Springer.[Crossref] , [Google Scholar], 2011). Two coders labeled data from students who used an intelligent tutoring system for college genetics. They coded in terms of 7 forms that the moment-by-moment learning curve can take. These labels are correlated to test data on the robustness of students’ learning. We find that different visual forms are correlated with very different learning outcomes. This work suggests that analysis of moment-by-moment learning curves may be able to shed light on the implications of students’ different patterns of learning over time.     

The Level of Decision-Making,Perceived Influence,and Perceived Satisfaction of Faculty and Their Impact on Student Retention in Community Colleges

ABSTRACT

This study expanded on previous models that looked primarily at student and support factors related to student retention and examined other stakeholder group functions not previously reviewed in relation to student retention. The research question assumed that greater faculty participation in campus decision-making and faculty satisfaction would have been associated with a higher campus student retention rate. The non-experimental retrospective design examined the unanalyzed 2007 community college (CC) Changing Academic Profession (CAP) survey in relation to campus retention rates. The CAP captured faculty perceptions of whether faculty or non-faculty entities were the primary influence on decisions regarding academic matters, as well as a rating of faculty satisfaction. Analysis indicated that CC faculty rated their participation in campus decision-making versus non-faculty entities similarly to the ratings of faculty who had completed the CAP at four-year institutions. When compared with the 2007 retention rate per campus, only faculty job satisfaction was statistically significantly positively associated with student retention. Recommendations for future research include continuing to look at retention as an outcome of a multi-factorial model involving all campus stakeholders, and more research with retention as the outcome.