Strengthening Environmental Communications

Abstract

An attitudinal survey that contrasted student perceptions on environmental/energy questions during the decade of intense concern for these issues was conducted at Cornell University in 1971 and 1981 (3414 and 3867 students sampled, respectively). The survey was designed to measure changes in attitude toward thirty-five specific items in five major categories (Food-stuffs, Household items, Transportation, Personal items, and Recreation). Significant differences were observed between the two surveys with most of the differences associated with political leanings, income, gender and geographical background. The changes were in the direction of a more materialistic lifestyle with less consideration for environmental/energy issues and concerns.     

Collaborative Approaches to Resolving Difficult ILL Borrowing Requests: Using a Working Group and a Wiki for Knowledge Sharing

Interlibrary loan borrowing staff at the University of Arizona Main Library, who handle difficult interlibrary loan requests, are taking a collaborative approach to obtaining unique, difficult-to-locate materials. A working group within the document delivery team meets weekly to share examples processed during the preceding week to increase the fill rate of challenging interlibrary loan requests. The group also established a wiki for the purpose of sharing resources that have been used to solve difficult requests. The wiki serves as an advanced interlibrary loan training resource that can be accessed by a greater number of staff, enabling them to gain the skills necessary to process difficult requests.     

The impact of the coronavirus disease 2019 pandemic on physical activity in U.S. children

BackgroundDaily moderate-to-vigorous physical activity (MVPA) is vital to the physical, mental, and social well-being of children. Early restrictions during the coronavirus disease 2019 (COVID-19) pandemic included the closure of schools and physical activity (PA) amenities across the US. This study aimed to examine the impact of the pandemic on the PA and play behavior of U.S. children and to provide evidence-based recommendations to improve their PA.MethodsA cross-sectional, online, parent-reported survey was conducted of children aged 3–18 years between April and June 2020 to assess light PA and MVPA using a modified Godin Leisure-Time Exercise Questionnaire. Additional items included family/child socioeconomic demographics, child adaptability to the pandemic, and community access. The survey was shared through social media and snowball sampling distribution.ResultsAnalysis of 1310 surveys indicated child PA scores declined significantly during the pandemic (from 56.6 to 44.6, max 119, p < 0.001). Specifically, MVPA score decreased (from 46.7 to 34.7, max 98, p < 0.001) while light PA remained the same. Age-based changes were seen in the quantity, variety, and intensity of PA, with the lowest pandemic-related impact seen in preschoolers and the highest in high schoolers (–4.7 vs. –17.2, p < 0.001). Community-based peer PA decreased across all age groups.ConclusionThis study shows decreased PA levels in U.S. children, according to parent reporting, during the COVID-19 pandemic. Recommendations for community leaders, educators, and parents to improve PA in children are provided. With continued spread of COVID-19, these results and recommendations may be imperative to the physical well-being of U.S. children.     

Making Science Relevant: The Experiences of Prospective Elementary School Teachers in an Innovative Science Content Course

Journal of Science Teacher Education -     

Validity of the VmaxST portable metabolic measurement system

The aim of this study was to assess and compare the validity of the portable VmaxST telemetry metabolic measurement device with that of a standard measurement system (Vmax29). Thirty asymptomatic, moderately active males provided written, informed consent and completed two maximal graded treadmill exercise tests (Bruce) using the VmaxST and the Vmax29 metabolic measurement systems. Tests were performed in random order on separate days to obtain peak values for time to exhaustion, heart rate, systolic and diastolic blood pressure, oxygen consumption (VO2), carbon dioxide production (VCO2), ventilation (VE), and respiratory exchange ratio (RER). Multivariate analysis of variance revealed no significant main effect (P = 0.88) between the two systems across any variable, suggesting similar measurement capabilities between the two systems. Linear regression analyses revealed moderate to high coefficients of determination for VO2 (r2 = 0.99), VCO2 (r2 = 0.99), VE r2 = 0.99), and RER (r2 = 0.89). Furthermore, Bland-Altman analyses demonstrated that the VmaxST yielded similar values to the Vmax29, suggesting good agreement between the two systems. Agreement was confirmed when the differences between the methods resulted in a small range as identified by the 95% limits of agreement. Findings from the current study confirm that the VmaxST is a valid device for measuring metabolic and physiological variables during exercise within a controlled laboratory setting.     

A Framework for Evaluating and Planning Assessments Intended to Improve Student Achievement

Assessments labeled as formative have been offered as a means to improve student achievement. But labels can be a powerful way to miscommunicate. For an assessment use to be appropriately labeled "formative," both empirical evidence and reasoned arguments must be offered to support the claim that improvements in student achievement can be linked to the use of assessment information. Our goal in this article is to support the construction of such an argument by offering a framework within which to consider evidence-based claims that assessment information can be used to improve student achievement. We describe this framework and then illustrate its use with an example of one-on-one tutoring. Finally, we explore the framework's implications for understanding when the use of assessment information is likely to improve student achievement and for advising test developers on how to develop assessments that are intended to offer information that can be used to improve student achievement.     

在家工作的现实

在家工作既可以避免上下班的劳累,又可以较自由地安排自己的时间。但在家工作仍存在一些难题,比如:怎样避免受到他人的干扰?怎样防止自由散漫、浪费时间?本文将向有机会在家工作的人介绍一些合理安排生活的方法。