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151.
In this paper we explore the philosophy, pedagogy and implementation of the third year course sequence in the M.A. in Educational Technology program at Michigan State University. We discuss how “little-r” revolutions in teaching and learning, i.e., technology facilitated revolutions specific to individual classrooms and contexts, are used to introduce our students to the thinking patterns of designers and innovators. This is accomplished by an overlapping emphasis on learning by design, trans-disciplinary creative cognitive tools, innovative technology, and reflective practice. In this environment, we also transition our students from acting as consumers of educational media to being producers of educational experiences. That is, not only do the students construct new educational media, they consider the aesthetic and affective implications of technology use for teaching and learning. Finally, given the rapid evolution of educational technologies, we support students as they establish a foundational vision for the interplay of education and technology that will serve them into the future, as they, and their learners, adapt tonew and emerging digital environments.  相似文献   
152.
Abstract

The aim of this study was to summarize both practical and methodological issues in using pedometers to assess physical activity in a large epidemiologic study. As part of a population-based survey of cardiovascular disease risk factors, physical activity was assessed using pedometers and activity diaries in 775 men and women ages 25–64 years who were residents of Burnie, Tasmania, 1998–99. Common data problems were classified by type. The frequency of each problem and the methods used to identify it are reported along with strategies to correct or prevent each problem type. Pedometer data from 15 (1.9%) participants could not be used due to errors in completing the pedometer protocol. Among 760 participants with usable data, the median number of steps was 9,729 for men and 10,388 for women. Pedometer steps per day were modestly correlated (r = .20, p < .0001) with the duration of pedometer wear, which ranged from 4.50 to 21.75 hr. Adjustment for wear time, however, did not alter observed correlations between pedometer steps and cardiovascular risk factors. The authors conclude that pedometers can be used in large population studies with a relatively low frequency of data errors. However, guidelines for consistent data collection and interpretation are needed.  相似文献   
153.
The aim of this study was to determine the relationship between discus throwing performance and the following technical parameters: hip–shoulder and shoulder–arm separation, trunk forward–backward tilt, throwing-arm elevation angles, and the absolute and relative throwing procedure phase times. Videographic data of 51 male and 53 female discus throwers' competitive performances were captured during major meets. The three-dimensional coordinates of 21 body landmarks and the discus were obtained for each thrower's best trial using direct linear transformation. The technical parameters were reduced from the three-dimensional data at six critical instants during the throwing procedure. Hierarchical stepwise multiple regression analyses were performed to determine the relative influence of linear combinations of the technical parameters on discus throwing performance. Specific techniques associated with linear combinations of certain technical parameters were identified using canonical correlations. Males and females were analysed separately. Suggestions for controlling the height of release and the vertical component of the speed of release using an effective technique are made.  相似文献   
154.
A group of healthy older adults completed an 8-week resistance-training program. For 38 participants (14 men, 24 women; ages 60-90 years; M mass = 73.2 kg, SD = 12.3; M height = 1.65 m, SD = 0.08), pre- and postprogram sit-to-stand performance was analyzed (60 Hz video) focusing on center of mass kinematics surrounding transition. Significant changes were attributed to improved strength. Peak forward, downward, and upward velocities increased (16, 59, and 26%, respectively), and relative transition time was delayed 27%. These behaviors were more similar to those of healthy younger adults. Results also indicated strategy changes. Participants exploited their improved strength, forming a distinctive movement pattern emphasizing stability followed by a brisk rise. These adaptations represent meaningfully improved function in an important daily living activity.  相似文献   
155.
INTRODUCTION: Online databases can support the implementation of evidence-based practice by providing easy access to research. OTseeker (http://www.otseeker.com), an electronic evidence database, was introduced in 2003 to assist occupational therapists to locate and interpret research. OBJECTIVES: This study explored Australian occupational therapists' use and perceptions of OTseeker and its impact on their knowledge and practice. METHODS: A postal survey questionnaire was distributed to two samples: (i) a proportionate random sample of 400 occupational therapists from all states and territories of Australia, and (ii) a random sample of occupational therapists working in 95 facilities in two Australian states (Queensland and New South Wales). RESULTS: The questionnaire was completed by 213 participants. While most participants (85.9%) had heard of OTseeker, only 103 (56.6%) had accessed it, with lack of time being the main reason for non-use. Of the 103 participants who had accessed OTseeker, 68.9% had done so infrequently, 63.1% agreed that it had increased their knowledge and 13.6% had changed their practice after accessing information on OTseeker. CONCLUSION: Despite OTseeker being developed to provide occupational therapists with easy access to research, lack of time was the main reason why over half of the participants in this study had not accessed it. This exploratory research suggests, however, that there is potential for the database to influence occupational therapists' knowledge and practice about treatment efficacy through access to the research literature.  相似文献   
156.
This case study addresses a workflow analysis project undertaken in the International Studies and Asia Library technical services areas of the University of Michigan Library. The analysis was an opportunity to document existing technical services practices in three primary workflow areas: acquisitions/receiving, cataloging, and cataloging maintenance. International Studies began the project independently, and subsequently consultants were hired to work with both International Studies and Asia Library to find efficiencies and barriers, identify solutions, and propose future changes in non-Roman-language cataloging workflows. This article provides an account outlining the project background, implementation, outcomes, challenges, and lessons learned.  相似文献   
157.
A telephone survey of 122 respondents was conducted to examine whether exposure to television predicted the use of certain conflict management message styles. Television exposure was not a significant predictor of using a “self-oriented” or “issue-oriented” approach. However, it was a significant predictor of using an “other-oriented” approach to conflict management. Viewers with greater exposure to television were more likely to report using positive message responses when dealing with conflict than their lighter-viewing counterparts.  相似文献   
158.
159.
Objective: Young people’s environmental views are typically conflicted, with little recognition of the links between environmental issues or between environmental responsibility and action. The purpose of this study was to clarify whether young people’s understanding of the environment is in conflict or whether they are forming interconnections between issues, responsibility and action that have not yet been identified. Methods: Data relating to environmental attitudes, responsibility, issues and action was collected from 305 high school students in south east Queensland. Regression analyses were used to identify variables that influenced the importance young people placed on environmental issues and actions. Results: Young people’s ideas about environmental responsibility influenced the level of importance they placed on global warming and resource consumption. Young people’s sense of hope and hopelessness were the main drivers of their endorsement of individualistic and political actions for the environment. Conclusions: The unifying factor that influenced young people’s ideas about the environment was a sense of hope. Thus, while young people may already be intuiting their own sense of environmental interconnectedness, it is essential that this is expanded so that young people recognise the links between environmental issues, and the logical pathways that lead from environmental responsibility to action.  相似文献   
160.
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