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81.
82.
Neighborhood schools engender the idea that schools can be integral community centers, with learning facilitated by the personal relationships developed among teachers, administrators, students, and parents. Neighborhood schools also have represented stigmatized segregated spaces located in communities with high poverty rates, low high school graduation rates, and little opportunity for social mobility. Drawing from print and online media sources related to the closure and reopening of D.C. Virgo Middle School (Virgo), a racially- and economically-segregated middle school in an urban, southern community, this study uses conceptual content analysis to examine the competing discourses surrounding Virgo. The authors conclude that the public discourse examined herein represents the tension between public schools as stigmatizing beloved spaces. As a stigmatizing space, the school can transfer the stigmatized identity to associated students and personnel. As a beloved space, the school can nurture possibility and hope.  相似文献   
83.
ABSTRACT

Community colleges continue to face accountability pressures without an increase in funding, requiring creativity to meet their goals. Collaborating across departments can maximize communication and minimize waste. Team-based course design is one way to encourage interdepartmental work. Within this article, a diverse team—composed of individuals representing not only faculty, but also staff and administrators from the library, student tutoring services, and distance education departments— explains best practices based on their experience with team-based course design.  相似文献   
84.
Two Lagrange multiplier (LM) methods may be used in specification searches for adding parameters to models: one based on univariate LM tests and respecification of the model (LM‐respecified method) and the other based on a partitioning of multivariate LM tests (LM‐incremental method). These methods may result in extraneous parameters being included in models due to either sampling error or the model being misspecified. A 2‐stage specification search may be used to reduce errors due to misspecification. In the 1st stage, parameters are added to models based on LM tests to maximize fit. Second, parameters added in the 1st stage are deleted if they are no longer necessary to maintain model fit. Illustrations are presented to demonstrate that errors due to misspecification occur with the LM‐respecified method and are even more likely with the LM‐incremental approach. These illustrations also show how the deletion stage can help eliminate some of these errors.  相似文献   
85.
Multiple perspectives regarding the definition of quality child care, and how child care quality can be improved, were examined using a focus group methodology. Participants were representatives from stakeholder groups in the child care profession, including child care center owners and directors (3 groups), parents (3 groups), child caregivers (3 groups), policy makers (1 group), and social service providers (1 group). Qualitative analysis revealed 6 components of quality that were consistently discussed across all participant groups: (a) communication and rapport, (b) caregiver practices, (c) staff characteristics, (d) finances and resources, (e) visibility and involvement, and (f) professionalism. Analyses highlighted differences among stakeholder groups and the complex interplay among quality components. Findings are compared to previously documented perspectives on child care quality, and a conceptual model is presented that (a) summarizes findings about how proximity to child impacts definitions of quality and (b) highlights the central role played by child care center directors. Implications for child care practice and policy are discussed.  相似文献   
86.
It is widely accepted in the higher education literature that a student-centred approach is pedagogically superior to a teacher-centred approach. In this paper, we explore the notion of student-centredness as a threshold concept and the implications this might have for academic staff development. We argue that the term student-centred in the Rogerian sense implies a focus on the person of the student and is deeply resonant with Barnett's assertion that the emergent being of the student is as important as the development of skills and knowledge. To facilitate transformative learning in higher education an academic must know how to value the person of the student in the learning process. Academic staff development initiatives need to work with the person of the academic and take into account the level of personal development required for each academic to be able to facilitate this kind of learning.  相似文献   
87.
88.
ABSTRACT

Professional American football games are recorded in digital video with multiple cameras, often at high resolution and high frame rates. The purpose of this study was to evaluate the accuracy of a videogrammetry technique to calculate translational and rotational helmet velocity before, during and after a helmet impact. In total, 10 football impacts were staged in a National Football League (NFL) stadium by propelling helmeted 50th percentile male crash test dummies into each other or the ground at speeds and orientations representative of concussive impacts for NFL players. The tests were recorded by experienced sports film crews to obtain video coverage and quality typically available for NFL games. A videogrammetry procedure was used to track the position and rotation of the helmet throughout the relevant time interval of the head impact. Compared with rigidly mounted retroreflective marker three dimensional (3-D) motion tracking that was concurrently collected in the experiments, videogrammetry accurately calculated changes in translational and rotational velocity of the helmet using high frame rate (two cameras at 240 Hz) video (7% and 15% error, respectively). Low frame rate (2 cameras at 60 Hz) video was adequate for calculating pre-impact translational velocity but not for calculating the translational or rotational velocity change of the helmet during impact.  相似文献   
89.
ABSTRACT

Background and Context

Sports and technology are often pitted as being at odds with one another. While there are several educational activities that make reference to sports we seldom see sports used as an authentic context for learning computing.  相似文献   
90.
Objective: The research analyzes usage of a major biomedical library''s pre-1993 print journal collection.Methodology: In July 2003, in preparation for a renovation and expansion project, the Biomedical Library at the University of California, San Diego, moved all of its pre-1993 journal volumes off-site, with the exception of twenty-two heavily used titles. Patrons wishing to consult one of these stored volumes could request that it be delivered to the library for their use. In the spring of 2006, an analysis was made of these requests.Results: By July of 2006, 79,827 journal volumes published in 1992 or earlier had been requested from storage. The number of requests received declined with age of publication. The usage distribution exhibited a “long tail”: 50% of the 79,827 requests were for journal volumes published before 1986. The availability of electronic access dramatically reduced the chance that corresponding print journal volumes would be requested.Conclusions: The older biomedical print journal literature appears to be of continued value to the biomedical research community. When electronic access was provided to the older literature, demand for older print volumes declined dramatically.

Highlights

  • Analysis of requests for stored biomedical journal volumes published prior to 1993 indicates that older biomedical journal literature receives substantial use: during this 3-year study, there were nearly 80,000 requests for journal volumes published in 1992 or earlier, with half the requests for volumes published from 1986–1992 and 40% of the request for volumes published from 1970–1985. These results indicate that retaining older print volumes, or providing easy access to the older literature through electronic journals or other means, will likely be required to meet user information needs.
  • Use of older journal volumes varies by title and by user population, and a small number of journal titles were responsible for most of the use.
  • Requests for older print biomedical journal titles dropped significantly when electronic access became available.

Implications

  • Biomedical libraries should carefully consider implications of eliminating on-site access to older journal literature for users and budgets.
  • Removing access to older journal literature may result in higher demand for interlibrary loan and document delivery services.
  • Biomedical libraries can safely substitute reliable electronic access to older literature to meet ongoing needs for this information, thereby creating space for other purposes.
  相似文献   
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