Relationship between laboratory-measured variables and heart rate during an ultra-endurance triathlon

The aim of the present study was to examine the relationship between the performance heart rate during an ultra-endurance triathlon and the heart rate corresponding to several demarcation points measured during laboratory-based progressive cycle ergometry and treadmill running. Less than one month before an ultra-endurance triathlon, 21 well-trained ultra-endurance triathletes (mean +/- s: age 35 +/- 6 years, height 1.77 +/- 0.05 m, mass 74.0 +/- 6.9 kg, = 4.75 +/- 0.42 l x min(-1)) performed progressive exercise tests of cycle ergometry and treadmill running for the determination of peak oxygen uptake (VO2peak), heart rate corresponding to the first and second ventilatory thresholds, as well as the heart rate deflection point. Portable telemetry units recorded heart rate at 60 s increments throughout the ultra-endurance triathlon. Heart rate during the cycle and run phases of the ultra-endurance triathlon (148 +/- 9 and 143 +/- 13 beats x min(-1) respectively) were significantly (P < 0.05) less than the second ventilatory thresholds (160 +/- 13 and 165 +/- 14 beats x min(-1) respectively) and heart rate deflection points (170 +/- 13 and 179 +/- 9 beats x min(-1) respectively). However, mean heart rate during the cycle and run phases of the ultra-endurance triathlon were significantly related to (r = 0.76 and 0.66; P < 0.01), and not significantly different from, the first ventilatory thresholds (146 +/- 12 and 148 +/- 15 beats x min(-1) respectively). Furthermore, the difference between heart rate during the cycle phase of the ultra-endurance triathlon and heart rate at the first ventilatory threshold was related to marathon run time (r = 0.61; P < 0.01) and overall ultra-endurance triathlon time (r = 0.45; P < 0.05). The results suggest that triathletes perform the cycle and run phases of the ultra-endurance triathlon at an exercise intensity near their first ventilatory threshold.     

Neighborhood disparities in access to information resources: Measuring and mapping U.S. public libraries’ funding and service landscapes

Information inequity is a central concern of the digital age. Many recognize the role of public libraries in bridging such inequities. Unfortunately, however, public libraries are often limited by the funding available to them. This study used a geographic information system (GIS), inequality measures, and multiple regressions to analyze statistics from the Public Libraries Survey (PLS) collected by the National Center for Education Statistics (NCES) and from census tract data. It evaluated the levels of public library funding and services and tested how these resources vary with neighborhood income and urbanization levels. This is one of the few nationwide multivariate studies of neighborhood-level variations. The study revealed significant funding and service variations across the nation's 9000 library systems. Distributions of digital materials, full-time staff with a master's degree in library and information science, and library programs were especially disparate. Library systems in lower-income or rural neighborhoods were relatively less funded and offered fewer information resources. Interestingly, the only variable that was not significantly associated with neighborhood income was the number of public Internet terminals. This suggests that recent funding and research efforts may have made a difference. Similar funding efforts are encouraged for other types of library resources such as staff education and training. In light of the prevalent disparities in resource levels across neighborhoods, the study calls for a fundamental evaluation of the funding mechanisms for libraries. Also, information behavior research should investigate how this structural information inequity affects individuals’ information use decisions.     

Diverging discourses: Examining how college students majoring in communication define diversity

Colleges and universities in the United States often promote diversity through a neoliberal lens by framing diversity as a celebration of individual differences or a commodity that students can gain by attending their institution. In communication courses, diversity has been conceptualized through both neoliberal and critical lenses, but limited research has investigated how communication students define and explain diversity. The focus of this study was to understand how communication students define diversity. We performed thematic analyses on open-ended survey responses to investigate how communication students define diversity. Four themes emerged from our analyses: (a) diversity is a mechanism for unifying communities, (b) diversity is an affirmation of individual differences, (c) diversity is a harbinger of acceptance and equality, and (d) diversity is a disruptive force that re-centers the voices of traditionally marginalized people. Our findings indicate most communication students define diversity through a neoliberal lens. However, 3% of our participants conceptualized diversity through a critical lens by explaining that diversity should create space for those who are marginalized to have their voices heard. We conclude by providing recommendations for communication instructors to incorporate more critical conversations about diversity into their classrooms and foster diverging discourses about diversity across communication curricula.     

Examining Online Instruction in Undergraduate Nursing Education

Web-based courses have increased in number as one of the primary modes of distance education in undergraduate nursing programs across the United States. An online survey of 171 nursing faculty in the United States with experience teaching Web-based courses served as the primary data source. Interviews and a review of course Web sites provided additional comparative information. Results of this study indicated online faculty spent significantly more time in planning and implementing a Web course than they did a traditional course. Despite this time commitment respondents perceived the teaching experience to be a successful and effective form of instruction that they felt could be used to deliver any type of nursing course. The online teaching experience was described as both collaborative and highly interactive. Most respondents indicated they preferred online teaching to traditional face-to-face instruction. This positive reaction to teaching online supports the future viability of Web-based instruction at colleges of nursing.     

Good Chinese Girls and the Model Minority: Race,Education, and Community in Girl in Translation and Front Desk

Children's Literature in Education - The girl protagonists in Jean Kwok’s Girl in Translation and Kelly Yang’s Front Desk embody and reinterpret the notion of guai (loosely...