Analysis of head impacts during sub-elite hurling practice sessions

The reported incidence of head and neck injuries in hurling is 0.12 per 1000 hours, but no previous research has quantified head impact characteristics in this sport. Here, a wireless accelerometer and gyroscope captured head impacts, in 20 senior club level hurling players. Peak linear and rotational acceleration and impact location were recorded during three hurling training sessions, each player participating once. A mean of 27.9 impacts (linear acceleration >10g) per player, per session were recorded; 1314 impacts during a total exposure time of 247 minutes. Only 2.6% impacts had peak linear acceleration of >70g and 6.2% had peak rotational acceleration >7900 rad/s². There were significant differences in the number and magnitude of impacts, quantified by the accelerometer, between three training sessions of differing intensity (?2 0.03–0.09, p < 0.001). This study represents a first step in quantifying head impacts during hurling, demonstrating the feasibility of this technology in the field. The sensors were able to discriminate between sessions of varying intensity. These data can be used to develop athlete monitoring protocols and may be useful in developing innovative helmet-testing standards for hurling. The potential for this technology to provide feedback has clinical utility for team medical personnel.     

Water-filled training tubes increase core muscle activation and somatosensory control of balance during squat

This study examined trunk muscle activation, balance and proprioception while squatting with a water-filled training tube (WT) and a traditional barbell (BB), with either closed (CE) or open eyes (OE). Eighteen male elite Gaelic footballers performed an isometric squat under the following conditions: BB-OE, BB-CE, WT-OE and WT-CE. The activity of rectus abdominis (RA), external oblique (EO) and multifidus (MF) was measured using electromyography, along with sway of the centre of pressure (CoP) using a force platform. Only the EO and the MF muscles exhibited an increased activity with WT (p < 0.01). In the medio-lateral direction both the velocity and range of the CoP increased significantly with WT (p < 0.01). Interestingly, the range of the CoP for the WT-CE condition was significantly lower than WT-OE (p < 0.05, d = 0.44), whilst the velocity of the CoP was marginally reduced (d = 0.29). WT elicited a greater level core muscle activation and created a greater challenge to postural stability when compared to a BB. It appears that WT does not benefit from vision but emphasises the somatosensory control of balance. The use of WT may be beneficial in those sports requiring development of somatosensory/proprioceptive contribution to balance control.     

The activities of the All-Russian Institute of Scientific and Technical Information of the Russian Academy of Sciences in development,maintenance, and promotion of Universal Decimal Classification for information interoperability

The activities of the All-Russian Institute of Scientific and Technical Information of the Russian Academy of Sciences, the centre of maintenance and usage promotion of the Russian standards for the Universal Decimal Classification tables, are described.     

Inclusion Means Everyone! The Role of the Early Childhood Educator when Including Young Children with Autism in the Classroom

The impact of the emphasis on inclusion in special education has resulted in a higher frequency of young children with autism being included in early childhood programs with typically developing peers. Many early childhood educators have risen to face the challenge, and this has resulted in enhanced learning for young children with autism in the regular classroom. This article focuses on the multiple roles of early childhood educators as they work with the diverse needs of young children with autism in their classrooms.     

Food Safety Education Using Music Parodies

ABSTRACT:  Musical parodies of contemporary songs with their lyrics altered to address current food safety issues were incorporated into a variety of food safety educational programs and the effectiveness of the music was evaluated by semiquantitative and qualitative measures. Audiences receiving the music-enriched curricula included school foodservice supervisors, school foodservice managers, culinary arts instructors, culinary arts students, Family and Consumer Sciences teachers, and youth aged 8 to 12 y and studies were conducted in South Carolina, North Carolina, and Delaware. Among school foodservice supervisors, school foodservice managers, and culinary arts students, most participants were able to recall the main points of each song that was introduced in the curriculum. The culinary arts students were less likely to recall the main points of each song than were the other 2 groups, possibly because of the lack of prior knowledge of food safety practices as well as a lack of preference for the style of songs used. Family and Consumer Sciences teachers were enthusiastic about the use of the music but also identified potential barriers to the successful use of the music, due to the potential lack of appropriate audiovisual equipment, a lack of skills in using such equipment, and time constraints for the use of music in curricula due to the strong emphasis on end of year testing. Participants in the summer youth groups demonstrated significant increases between pre- and posttest examinations of safe food handling behaviors and most were able to quote lines or phrases from the songs.     

Note-taking During Discussion: Using a Weekly Reflection Assignment to Motivate Students to Learn from Their Peers

The benefits of in-class discussion, a form of active learning, are well-documented; in particular, discussions allow students the opportunity to learn from their peers. Yet students often treat discussions as ‘down’ or ‘free’ time. If students are not taking notes during discussion and reviewing those notes later on, they may not be learning much from this activity, despite their professed understanding of its value. This article reviews the benefits of discussion and the important functions of note-taking before introducing an online weekly reflection assignment that was designed to motivate students to take notes during discussion, particularly on their peers' contributions. An analysis of past weekly reflection text and survey data from students confirms the utility of the assignment. Intended and unintended benefits of the weekly reflection assignment are shared, as well as its limitations. The conclusion offers suggestions for future areas of research to complement this study.     

Our voices count: the lived experiences of LGBTQ educators and its impact on teacher education preparation programs

LGBTQ issues are often marginalized in teacher preparation programs. This marginalization perpetuates heternormative practices in schools. Utilizing the lens of narrative inquiry, this study examined the lives of 10 LGBTQ teachers residing in various geographical regions in the United States. Based on the theoretical framework of Queer Theory, this paper examines discursive powers that marginalize LGBTQ teachers and offers recommendations to eliminate repressive, heteronormative practices in teacher educator preparation programs.     

The Effectiveness of Mime‐Based Creative Drama Education for Exploring Gesture‐Based User Interfaces

User interfaces that utilise human gestures as input are becoming increasingly prevalent in diverse computing applications. However, few designers possess the deep insight, awareness and experience regarding the nature and usage of gestures in user interfaces to the extent that they are able to exploit the technological affordances and innovate over them. We argue that design students, who will be expected to envision and create such interactions in the future, are constrained as such by their habits that pertain to conventional user interfaces. Design students should gain an understanding of the nature of human gestures and how to use them to add value to UI designs. To this end, we formulated an ‘awareness course’ for design students based on concepts derived from mime art and creative drama. We developed the course iteratively through the involvement of three groups of students. The final version of the course was evaluated by incorporating the perspectives of design educators, an industry expert and the students. We present the details of the course, describe the development process, and discuss the insights revealed by the evaluations.     

A phenomenological study of teamwork in online and face-to-face student teams

Team-based projects are widely used in both traditional face-to-face and online programs in higher education. To date, the teamwork experiences of students in each modality have been documented primarily through evaluative research conducted over short spans of time and limited by a priori frameworks. The literature also reflects a lack of agreement about what constitutes the phenomenon of teamwork in each modality. In order to address these limitations, we conducted a phenomenological study examining the lived experiences of teamwork among students in both face-to-face and online MBA programs in Iran. Our analysis revealed striking commonalities in the experiences of both groups, including a shared desire for effective leadership to alleviate the problem of free riders, as well as substantial time and effort invested in retaining reliable teammates from one team project to another. In other respects, face-to-face and online students’ experience differed strongly. For example, while face-to-face participants pursued teammates with similar beliefs about how teamwork should be accomplished, online participants found themselves pre-occupied with staying connected with their teammates and struggled to establish common communication channels with each and every team member. Overall, our findings suggest that while training and support for student teamwork can partly build on the shared needs among students in both modalities, the nature of the experience in each modality may be so different in vital respects that engaging in one mode of teamwork does not necessarily prepare students to participate well in the other mode. Other implications and limitations of the research are discussed.