Does playing a sports active video game improve young children's ball skill competence?

OBJECTIVES: Actual and perceived object control (commonly ball) skill proficiency is associated with higher physical activity in children and adolescents. Active video games (AVGs) encourage whole body movement to control/play the electronic gaming system and therefore provide an opportunity for screen time to become more active. The purpose of this study was to determine whether playing sports AVGs has a positive influence on young children's actual and perceived object control skills. DESIGN: Two group pre/post experimental design study. METHODS: Thirty-six children aged 6-10 years old from one school were randomly allocated to a control or intervention condition. The Test of Gross Motor Development-3 assessed object control skill. The Pictorial Scale of Perceived Competence for Young Children assessed perceived object control skill. The intervention consisted of 6×50min lunchtime AVG sessions on the Xbox Kinect. Two to three sport games were chosen for participants to play each session. General linear models with either perceived object control or actual object control skill as the outcome variables were conducted. Each base model adjusted for intervention status and pre-score of the respective outcome variable. Additional models adjusted for potential confounding variables (sex of child and game at home). RESULTS: No significant differences between the control and intervention groups were observed for both outcomes. CONCLUSIONS: This study found that playing the Xbox Kinect does not significantly influence children's perceived or actual object control skills, suggesting that the utility of the Xbox Kinect for developing perceived and actual object control skill competence is questionable.

Identification of prey captures in Australian Fur Seals (Arctocephalus pusillus doriferus) using head-mounted accelerometers: field validation with animal-borne video cameras

This study investigated prey captures in free-ranging adult female Australian fur seals (Arctocephalus pusillus doriferus) using head-mounted 3-axis accelerometers and animal-borne video cameras. Acceleration data was used to identify individual attempted prey captures (APC), and video data were used to independently verify APC and prey types. Results demonstrated that head-mounted accelerometers could detect individual APC but were unable to distinguish among prey types (fish, cephalopod, stingray) or between successful captures and unsuccessful capture attempts. Mean detection rate (true positive rate) on individual animals in the testing subset ranged from 67-100%, and mean detection on the testing subset averaged across 4 animals ranged from 82-97%. Mean False positive (FP) rate ranged from 15-67% individually in the testing subset, and 26-59% averaged across 4 animals. Surge and sway had significantly greater detection rates, but also conversely greater FP rates compared to heave. Video data also indicated that some head movements recorded by the accelerometers were unrelated to APC and that a peak in acceleration variance did not always equate to an individual prey item. The results of the present study indicate that head-mounted accelerometers provide a complementary tool for investigating foraging behaviour in pinnipeds, but that detection and FP correction factors need to be applied for reliable field application.

The swimmer (The Bridge Project)

The Bridge Project (The Swimmer). The project produces two substantive outcomes: 1. The creation of a (multi-projection) video installation work for the Kingston Art Centre. The work transforms a redundant 3rd story walk-bridge into a virtual swimming pool. 2. In the process of transforming the walk-bridge, the project creates a new permanent and highly visible exhibition space for artists working in digital media. This allows the possibility for producing a series of works (or “outputs” if you like) that respond to the site and its cultural setting. It also provides an exhibition space for other staff and students working in digital media.

Formica

The title of the work, Formica, speaks both to the work’s insect motif – formica is Latin for ant - but also to the 2-dimensional nature of the projection screen – Formica is also a kind of decorative laminate surface. This is Grennan’s second video installation work commissioned specifically for the Kingston Art Centre’s Bridge Space. Following on from the first project - which transformed a dilapidated 3rd story pedestrian corridor into a virtual swimming pool - this work continues to explore the residual meanings of the corridor as a liminal, in-between, or non-space. The new work seeks to again reply aesthetically and poetically to the site’s external setting dominated as it is by the heavy commuter traffic along the Nepean Highway. Scale is central to the work. In Formica, Grennan constructs a scaled-down Perspex replica of the walk-bridge, and with the help of Patrick Honan and Museum Victoria (where Patrick, an entomologist, is head of live exhibits), he populates the corridor with live Bull Ants. The work records these colossal ants as they negotiate the non-space of the corridor and fulfil their metaphorical roles as standardised commuters. With nowhere to go, however, the ants subvert this assigned role and exhibit far more nuanced and individuated behaviour as they investigate, probe, prevaricate, dawdle, or preen idly as though performing some insectile version of Waiting for Godot.

Prosecutors’ perceptions of the utility of video-evidence for adult complainants of sexual assault

Playing an adult sexual complainant’s video-recorded police interview as the basis for his or her evidence-in-chief is a reform Australia could adopt to help improve criminal justice responses to these cases. This article presents a qualitative evaluation of prosecutor’s support for this reform and their views about what conditions would determine its utility. Focus groups were held with 13 prosecutors from across New Zealand (which already has this reform) and Australia. Collectively, prosecutors supported the availability of video-evidence for adult complainants. They perceived the utility of this reform depends on the following conditions: (1) the quality of the police interview; (2) how credibly the complainant presents on video; (3) contextual factors that influence the complainant’s ability to give live evidence; and (4) the degree of stakeholder support. These findings suggest that Australia should extend video-evidence to adult complainants of sexual assault guided by careful planning aroundthese four areas.

Playing Active Video Games may not develop movement skills: an intervention trial

Background: To investigate the impact of playing sports Active Video Games on children's actual and perceived object control skills. Methods: Intervention children played Active Video Games for 6. weeks (1. h/week) in 2012. The Test of Gross Motor Development-2 assessed object control skill. The Pictorial Scale of Perceived Movement Skill Competence assessed perceived object control skill. Repeated measurements of object control and perceived object control were analysed for the whole sample, using linear mixed models, which included fixed effects for group (intervention or control) and time (pre and post) and their interaction. The first model adjusted for sex only and the second model also adjusted for age, and prior ball sports experience (yes/no). Seven mixed-gender focus discussions were conducted with intervention children after programme completion. Results: Ninety-five Australian children (55% girls; 43% intervention group) aged 4 to 8. years (M 6.2, SD 0.95) participated. Object control skill improved over time (p=0.006) but there was no significant difference (p=0.913) between groups in improvement (predicted means: control 31.80 to 33.53, SED=0.748; intervention 30.33 to 31.83, SED=0.835). A similar result held for the second model. Similarly the intervention did not change perceived object control in Model 1 (predicted means: control: 19.08 to 18.68, SED=0.362; intervention 18.67 to 18.88, SED=0.406) or Model 2. Children found the intervention enjoyable, but most did not perceive direct equivalence between Active Video Games and 'real life' activities. Conclusions: Whilst Active Video Game play may help introduce children to sport, this amount of time playing is unlikely to build skill.

Touching space: Using motion capture and stereo projection to create a "virtual haptics" of dance

This paper describes the work of a group of artists in Australia who used real-time motion capture and 3D stereo projection to create a large-scale performance environment in which dancers seemed to "touch" the volume. This project re-versions Suzanne Langer's 1950s philosophy of dance as "virtual force" to realize the idea of a "virtual haptics" of dance that extends the dancer's physical agency literally across and through the surrounding spatial volume. The project presents a vision of interactive dance performance that "touches" space by visualizing kinematics as intentionality and agency. In doing so, we suggest the possibility of new kinds of human-computer interfaces that emphasize touch as embodied, nuanced agency that is mediated by the subtle qualities of whole-body movement, in addition to more goal-oriented, task-based gestures such as pointing or clicking. © 2010.

From video recordings to whisker stable isotopes: a critical evaluation of timescale in assessing individual foraging specialisation in Australian fur seals

Estimating the degree of individual specialisation is likely to be sensitive to the methods used, as they record individuals' resource use over different time-periods. We combined animal-borne video cameras, GPS/TDR loggers and stable isotope values of plasma, red cells and sub-sampled whiskers to investigate individual foraging specialisation in female Australian fur seals (Arctocephalus pusillus doriferus) over various timescales. Combining these methods enabled us to (1) provide quantitative information on individuals' diet, allowing the identification of prey, (2) infer the temporal consistency of individual specialisation, and (3) assess how different methods and timescales affect our estimation of the degree of specialisation. Short-term inter-individual variation in diet was observed in the video data (mean pairwise overlap = 0.60), with the sampled population being composed of both generalist and specialist individuals (nested network). However, the brevity of the temporal window is likely to artificially increase the level of specialisation by not recording the entire diet of seals. Indeed, the correlation in isotopic values was tighter between the red cells and whiskers (mid- to long-term foraging ecology) than between plasma and red cells (short- to mid-term) (R (2) = 0.93-0.73 vs. 0.55-0.41). δ(13)C and δ(15)N values of whiskers confirmed the temporal consistency of individual specialisation. Variation in isotopic niche was consistent across seasons and years, indicating long-term habitat (WIC/TNW = 0.28) and dietary (WIC/TNW = 0.39) specialisation. The results also highlight time-averaging issues (under-estimation of the degree of specialisation) when calculating individual specialisation indices over long time-periods, so that no single timescale may provide a complete and accurate picture, emphasising the benefits of using complementary methods.

Challenges and opportunities of undertaking a video ethnographic study to understand medication communication

AIMS AND OBJECTIVES: To examine the challenges and opportunities of undertaking a video ethnographic study on medication communication among nurses, doctors, pharmacists and patients. BACKGROUND: Video ethnography has proved to be a dynamic and useful method to explore clinical communication activities. This approach involves filming actual behaviours and activities of clinicians to develop new knowledge and to stimulate reflections of clinicians on their behaviours and activities. However, there is limited information about the complex negotiations required to use video ethnography in actual clinical practice. DESIGN: Discursive paper. METHOD: A video ethnographic approach was used to gain better understanding of medication communication processes in two general medical wards of a metropolitan hospital in Melbourne, Australia. This paper presents the arduous and delicate process of gaining access into hospital wards to video-record actual clinical practice and the methodological and ethical issues associated with video-recording. CONCLUSIONS: Obtaining access to clinical settings and clinician consent are the first hurdles of conducting a video ethnographic study. Clinicians may still feel intimidated or self-conscious in being video recorded about their medication communication practices, which they could perceive as judgements being passed about their clinical competence. By thoughtful and strategic planning, video ethnography can provide in-depth understandings of medication communication in acute care hospital settings. Ethical issues of informed consent, patient safety and respect for the confidentiality of patients and clinicians need to be carefully addressed to build up and maintain trusting relationships between researchers and participants in the clinical environment. RELEVANCE TO CLINICAL PRACTICE: By prudently considering the complex ethical and methodological concerns of using video ethnography, this approach can help to reveal the unpredictability and messiness of clinical practice. The visual data generated can stimulate clinicians' reflexivity about their norms of practice and bring about improved communication about managing medications.

A compilation of consumers' stories: the development of a video to enhance medication adherence in newly transplanted kidney recipients

AIM: To describe the design, development and evaluation of a consumer-centred video, which was underpinned by the Theory of Planned Behaviour and it was created to educate newly transplanted kidney recipients about the importance of medication adherence. BACKGROUND: Kidney transplantation is a treatment whereby medication adherence is critical to ensure long-term kidney graft success. To date, many interventions aimed to improve medication adherence in kidney transplantation have been conducted but consumers remain largely uninvolved in the interventional design. DESIGN: Qualitative sequential design. METHODS: Twenty-two participants who had maintained their kidney transplant for at least 8 months and three participants who had experienced a kidney graft loss due to non-adherence were interviewed from March-May 2014 in Victoria, Australia. These interviews were independently reviewed by two researchers and were used to guide the design of the story plot and to identify storytellers for the video. The first draft of the video was evaluated by a panel of seven experts in the field, one independent educational expert and two consumers using Lynn's content validity questionnaire. The content of the video was regarded as highly relevant and comprehensive, which achieved a score of >3·7 out of a possible 4. RESULTS/FINDINGS: The final 18-minute video comprised 15 sections. Topics included medication management, the factors affecting medication adherence and the absolute necessity of adherence to immunosuppressive medications for graft survival. CONCLUSION: This paper has demonstrated the feasibility of creating a consumer-driven video that supports medication adherence in an engaging way.

Learning clinical skills during bedside teaching encounters in general practice: a video-observational study with insights from activity theory

Purpose – This paper aims to explore how opportunities for learning clinical skills are negotiated within bedside teaching encounters (BTEs). Bedside teaching, within the medical workplace, is considered essential for helping students develop their clinical skills. Design/methodology/approach – An audio and/or video observational study examining seven general practice BTEs was undertaken. Additionally, audio-recorded, semi-structured interviews were conducted with participants. All data were transcribed. Data analysis comprised Framework Analysis informed by Engeström’s Cultural Historical Activity Theory. Findings – BTEs can be seen to offer many learning opportunities for clinical skills. Learning opportunities are negotiated by the participants in each BTE, with patients, doctors and students playing different roles within and across the BTEs. Tensions emerged within and between nodes and across two activity systems. Research limitations/implications – Negotiation of clinical skills learning opportunities involved shifts in the use of artefacts, roles and rules of participation, which were tacit, dynamic and changing. That learning is constituted in the activity implies that students and teachers cannot be fully prepared for BTEs due to their emergent properties. Engaging doctors, students and patients in refecting on tensions experienced and the factors that infuence judgements in BTEs may be a useful frst step in helping them better manage the roles and responsibilities therein. Originality/value – The paper makes an original contribution to the literature by highlighting the tensions inherent in BTEs and how the negotiation of roles and division of labour whilst juggling two interacting activity systems create or inhibit opportunities for clinical skills learning. This has signifcant implications for how BTEs are conceptualised.

The construction of power in family medicine bedside teaching: a video observation study

INTRODUCTION: Bedside teaching is essential for helping students develop skills, reasoning and professionalism, and involves the learning triad of student, patient and clinical teacher. Although current rhetoric espouses the sharing of power, the medical workplace is imbued with power asymmetries. Power is context-specific and although previous research has explored some elements of the enactment and resistance of power within bedside teaching, this exploration has been conducted within hospital rather than general practice settings. Furthermore, previous research has employed audio-recorded rather than video-recorded observation and has therefore focused on language and para-language at the expense of non-verbal communication and human-material interaction. METHODS: A qualitative design was adopted employing video- and audio-recorded observations of seven bedside teaching encounters (BTEs), followed by short individual interviews with students, patients and clinical teachers. Thematic and discourse analyses of BTEs were conducted. RESULTS: Power is constructed by students, patients and clinical teachers throughout different BTE activities through the use of linguistic, para-linguistic and non-verbal communication. In terms of language, participants construct power through the use of questions, orders, advice, pronouns and medical/health belief talk. With reference to para-language, participants construct power through the use of interruption and laughter. In terms of non-verbal communication, participants construct power through physical positioning and the possession or control of medical materials such as the stethoscope. CONCLUSIONS: Using this paper as a trigger for discussion, we encourage students and clinical teachers to reflect critically on how their verbal and non-verbal communication constructs power in bedside teaching. Students and clinical teachers need to develop their awareness of what power is, how it can be constructed and shared, and what it means for the student-patient-doctor relationship within bedside teaching.

Online video recommendation in sharing community

The creation of sharing communities has resulted in the astonishing increasing of digital videos, and their wide applications in the domains such as entertainment, online news broadcasting etc. The improvement of these applications relies on effective solutions for social user access to video data. This fact has driven the recent research interest in social recommendation in shared communities. Although certain effort has been put into video recommendation in shared communities, the contextual information on social users has not been well exploited for effective recommendation. In this paper, we propose an approach based on the content and social information of videos for the recommendation in sharing communities. Specifically, we first exploit a robust video cuboid signature together with the Earth Mover's Distance to capture the content relevance of videos. Then, we propose to identify the social relevance of clips using the set of users belonging to a video. We fuse the content relevance and social relevance to identify the relevant videos for recommendation. Following that, we propose a novel scheme called sub-community-based approximation together with a hash-based optimization for improving the efficiency of our solution. Finally, we propose an algorithm for efficiently maintaining the social updates in dynamic shared communities. The extensive experiments are conducted to prove the high effectiveness and efficiency of our proposed video recommendation approach.