Identifying swimmers as water-polo or swim team-mates from visual displays of less than one second

Abstract

Opportunities for ball passing in water-polo may be brief and the decision to pass only informed by minimal visual input. Since researchers using point light displays have shown that the walking or running gait of familiars can be identified, water-polo players may have the ability to recognize team-mates from their swimming gait. To test this hypothesis, members of a water-polo team and a competition swim team viewed two randomized sets of video clips, each less than one second long, of swimmers from both teams sprinting freestyle past a fixed camera. The arm stroke clip sequence showed only the upper body, and the kick sequence showed only the lower body. After viewing each video clip, observers rated their level of certainty as to whether the swimmer presented was a team-mate or not. Discrimination was significantly above chance in both groups. Water-polo players were better able to identify team-mates from their kick, whereas swimmers were better able to do so by viewing arm stroke. Our results suggest that, as with walking and running gait, small amounts of visual information about swimmers can be used for recognition, and so raise the possibility that specific training may be able to improve team-mate classification in water-polo, particularly in newly formed teams.     

Implementing Twitter in a health sciences library

The NYU Health Sciences Libraries created an account on Twitter, a microblogging service, as a new outreach tool marketed to students, faculty, and staff. The team used Twitter to promote resources, events, and news. Twitter is a part of a pipeline of information that also includes the library's Web site and Facebook. Although it is difficult to measure the effectiveness of a social networking tool, the overhead of using Twitter is so low that it merits consideration.     

At home with disability: one family’s three generations narrate autism

We examined the lived experiences of a Cypriot family with a young child with autism. Semi‐structured interviews with parents, siblings, and extended family members across three generations and observations of the family’s daily activities were the primary data‐generating methods. Critical events related to the disability diagnosis, the mother’s decision to undertake a significant role in the child’s education following negative interactions with professionals, and the family’s daily accommodations to the child’s needs emerged in narratives of multiple participants. Family narratives reflect the polyphony of experiences and responses shared by participants. The study illuminates the complexities of this experience and offers opportunities to rethink the interplay of disability, family, and culture in the context of research and practice.     

A comparison of OpenURL link resolvers: The results of a University of Connecticut Libraries environmental scan

Open URL link resolvers are emerging technological tools designed to increase use of library collections by automating the process of locating and accessing library holdings. This study examines the system architecture and capabilities of commercially available OpenURL link resolvers to assess viable options for the University of Connecticut Libraries. Data for the study, largely experiential feedback received from libraries employing OpenURL link resolvers, were gathered through a series of evaluative activities. These included a preliminary literature review, Web survey, follow-up e-mail survey, and on-site visits to libraries. Results were analyzed within the context of the University of Connecticut Libraries' resources and needs. Analysis revealed wide variation in library experiences with and perception of product functionality and performance, as well as requisite staff and financial investments.     

An analysis of factors related to the attitudes of regular classroom teachers toward mainstreaming mildly handicapped children

A model of factors was developed in order to examine variables that might be associated with the attitudes of regular classroom teachers toward mainstreaming mildly handicapped children. Using multiple linear regression analyses, the following variables were found to be significant predictors of a positive attitude toward mainstreaming: team-teaching, years of teaching experience (negative correlation), course in diagnosing learning and behavior problems, availability of resource teacher, previous special education teaching experience, number of courses taken in special education, number of students in classroom (25–27), and inservice program experience related to exceptional children. An examination of these predictors suggests that they may be used to select those regular educators who are likely candidates for implementing mainstreaming programs and that school systems can inhance their mainstreaming efforts by arranging the integration settings to conform with these predictors of positive attitude.     

Self‐assessment and the disadvantaged student: potential for encouraging self‐regulated learning?

The Science Foundation Programme (SFP) at the University of KwaZulu Natal, Pietermaritzburg attempts to address past educational inequalities by providing disadvantaged matriculants with the skills, resources and self‐confidence needed to embark on their tertiary studies. Students entering the Programme typically adopt a surface approach to learning with emphasis being placed on high score achievement which results in a mark‐driven attitude towards assessment. Students also lack the metacognitive skills associated with a deep approach to learning. Within this mark‐driven culture, it is important to attempt to move students away from such a superficial approach to learning and assessment. Worldwide, self‐assessment practice has been gaining recognition, and it has been linked to the adoption of a deep approach to learning; self‐regulated learning and the development of metacognitive skills. In the biology module of the Programme, students are given two essay assignments, tasks that are routinely performed very poorly. In attempt to improve SFP students’ essay writing abilities, a self‐assessment scheme to accompany the essay tasks was instituted, hoping that this would get the students to engage with the assessment criteria. It was intended that students would not only fulfil the requirements of the task better, but also achieve the valuable skill of self‐assessment. The results provide overwhelming evidence that SFP students cannot accurately self‐assess. Their naivety and inexperience in fulfilling assessment criteria was also revealed. Overall, marks awarded by staff were significantly lower than those awarded by students, and there was no evidence to suggest that any one category of students based on academic ability were better able to self‐assess than another. Marker inconsistencies were revealed, but this was shown to have no effect on findings. In spite of these results, a case for pursuing self‐assessment is made and proposals for improving student self‐assessment practice in the SFP are suggested.