Evaluation of design recommendations for the development of wheelchair rugby sports-wear

Currently, wheelchair rugby athletes face the challenges of playing the sport without specifically designed sports-wear kit. A few designs and recommendations have already been proposed by researchers but none have made it to market yet. The purpose of this study was to evaluate a set of design recommendations for the development of wheelchair rugby sports-wear. This was done so that the products to be created are developed in collaboration with their potential users, responding to their particular needs and requirements. The evaluation was done through an online survey, where the athletes were presented with a visual representation of the design recommendations. The results indicate that the people questioned agree with the majority of the proposed designs and would be happy to have these improvements made to their current sports-wear. The most criticised recommendations were for the gloves, as they are the most important part of the kit, so it is important that they are adequate and allow for a good performance

Thermoregulatory responses during competitive wheelchair rugby match play

The purpose of this study was to determine whether a player’s physical impairment or activity profile was related to the amount of thermal strain experienced during wheelchair rugby match play. 17 elite wheelchair rugby players played a competitive match, whilst activity profiles, measures of core and skin temperature, heart rate and perceptual responses were taken. Players were divided into 2 groups depending on their physical impairment: players with a cervical spinal cord injury, (n=10) or non-spinal related physical impairment (n=7). Total distance was lower (4 842±324 vs. 5 541±316 m, p<0.01, ES=2.2) and mean speed slower (1.13±0.11 vs. 1.27±0.11 m∙s−1, p<0.03, ES=1.3) in players with a spinal cord injury. Yet, the change in core temperature (1.6±0.4 vs. 0.7±0.3°C, p<0.01, ES=2.5) was significantly greater in players with a spinal cord injury. In conclusion, players with a spinal cord injury were under greater thermal strain during wheelchair rugby match play, as a result of their reduced heat loss capacity, due to their physical impairment and not because of their activity profile

Anomalous microwave emission from spinning nanodiamonds around stars

Several interstellar environments produce 'anomalous microwave emission' (AME), with brightness peaks at tens-of-gigahertz frequencies. The emission's origins are uncertain -- rapidly spinning nanoparticles could emit electric-dipole radiation, but the polycyclic aromatic hydrocarbons that have been proposed as the carrier are now found not to correlate with Galactic AME signals. The difficulty is in identifying co-spatial sources over long lines of sight. Here we identify AME in three proto-planetary discs. These are the only known systems that host hydrogenated nanodiamonds, in contrast to the very common detection of polycyclic aromatic hydrocarbons. Using spectroscopy, the nanodiamonds are located close to the host stars, at physically well-constrained temperatures. Developing disc models, we reproduce the emission with diamonds 0.75--1.1 nm in radius, holding <= 1-2% of the carbon budget. Ratios of microwave emission to stellar luminosity are approximately constant, allowing nanodiamonds to be ubiquitous but emitting below detection thresholds in many star systems. This result is compatible with the findings with similar-sized diamonds found within Solar System meteorites. As nanodiamond spectral absorption is seen in interstellar sightlines, these particles are also a candidate for generating galaxy-scale AME

Public Preschool Programs in Maine: Four Case Studies of Quality Programs

EXECUTIVE SUMMARY This is a follow-up to the report Public Preschool Programs in Maine: Current Status and Characteristics, submitted as part of the 2014/2015 EPS Commission work, as well as the 2014/2015 Maine Education Policy Research Institute (MEPRI) work plan. This report presents case studies of four quality Pre-K programs identified through previous superintendent and Pre- K teacher surveys, and analysis of data from the State Longitudinal Data System. Pre-K programs were selected based on the extent to which they were already addressing the Chapter 124 standards, as well as their historical pattern of future student performance on state testing (controlling for student demographic factors such as free/reduced lunch status, ELL, special education placement, etc). Programs were also selected to reflect geographic, demographic, and programmatic variation Case studies were conducted by MEPRI in spring 2015 with the purpose of illustrating the characteristics and features of several quality Pre-K programs, and to present some of the challenges and solutions they have addressed. Case studies were based on site visits conducted at each school. Site visits included a classroom observation and interviews with the school principal and teacher in order to inquire about the history, implementation, challenges and perceived advantages of including Pre-K within the elementary schools. Not surprisingly, programs are aware of the Chapter 124 regulations and are taking steps to be ready for the changes. Nevertheless, participating schools reported making trade-offs with regard to space, schedule, staffing and curriculum in order to balance resources and regulations with local community needs. In general, indoor spaces are more compliant than outdoor spaces. Special classes are available in these schools, but some teachers value the flexibility to choose which ones to access given the children in the group, the developmental demands of the classes, and the available schedule. Transportation is a concern for those programs not currently offering that service. Programs that are close to or over the 16 student class-size limit acknowledge the conflicting struggle between recognizing that smaller classrooms allow more individualized teaching and learning, and concern that limiting class size may result in families no longer being able to access Pre-K. Administratively, principals for these schools are highly supportive of Pre-K. They see social and academic benefits for children from having the programs in the schools. They appreciate the unique characteristics of 4-year olds and the specialized skills needed by teachers The Pre-K teachers for all of these programs report high levels of involvement and concern regarding their students and families. This can involve exceptional extra time and energy in working with families, as well as partnering with fellow faculty regarding ongoing curriculum changes and transition into kindergarten. In this regard, professional development is taking many forms. In part this can reflect Pre-K and larger school schedules. Some Pre-K programs are scheduled in ways that support professional development opportunities for the teachers, while others are scheduled in ways that increase access for children but limit participation of teachers in school-wide planning. Similarly, some professional development supports the curriculum work of whole schools (including Pre-K) while in other schools, the Pre-K professional development is structured separately. Regardless, teachers report appreciating professional development opportunities, particularly in response to ongoing changes in K-12 that also impact Pre-K. Specifically, as schools move toward proficiency-based learning and assessment, new implications arise for how Pre-K programs collaborate with kindergarten and transition children into kindergarten. Collaboration and coordinated professional development may help in this regard. Schools are reportedly more aware of Chapter 124 than of the new Maine Early Learning and Development Standards. Teachers and administrators will also need professional development about the new standards and guidance on assessing progress toward the standards within the context of proficiency-based assessment. All programs report high achievement of children in Pre-K but given the range of assessment measures and curricula used, it impossible to exam in depth across sites. While highly valued, local funding will reportedly impact the numbers of children served in Pre- K. Currently, children are not turned away from the programs visited for this report. However, in order to accomplish this other district programs were used at times and in some cases class size exceeded the recommended limit of 16 children. Administrators are concerned about limiting access to families now that Pre-K is viewed as a core part of these schools. Furthermore, most v communities are experiencing some degree of budget cuts, which affects the long-term stability of Pre-K programs, even in those communities with very long-standing commitments to early childhood. Finally, principals and teachers in both urban and rural districts expressed concern about delays between referral for screening and receipt of special education services from CDS. It was reportedly particularly frustrating for those schools that had service personnel in the school and availability in the schedule, but were still unable to have those children served

The optical microscopy with virtual image breaks a record: 50-nm resolution imaging is demonstrated

We demonstrate a new 'microsphere nanoscope' that uses ordinary SiO2 microspheres as superlenses to create a virtual image of the object in near field. The magnified virtual image greatly overcomes the diffraction limit. We are able to resolve clearly 50-nm objects under a standard white light source in both transmission and reflection modes. The resolution achieved for white light opens a new opportunity to image viruses, DNA and molecules in real time

Activity profiles of elite wheelchair rugby players during competition

To quantify the activity profiles of elite wheelchair rugby and establish classification-specific arbitrary speed zones. Additionally, indicators of fatigue during full matches were explored. Methods: Seventy-five elite wheelchair rugby players from eleven national teams were monitored using a radio-frequency based, indoor tracking system across two international tournaments. Players who participated in complete quarters (n = 75) and full matches (n = 25) were included and grouped by their International Wheelchair Rugby Federation functional classification: group I (0-0.5), II (1.0-1.5), III (2.0-2.5) and IV (3.0-3.5). Results: During a typical quarter, significant increases in total distance (m), relative distance (m·minˉ¹), and mean speed (m·sˉ¹) were associated with an increase in classification group (P < 0.001), with the exception of group III and IV. However, group IV players achieved significantly higher peak speeds (3.82 ± 0.31 m·sˉ¹) than groups I (2.99 ± 0.28 m·sˉ¹), II (3.44 ± 0.26 m·sˉ¹) and III (3.67 ± 0.32 m·sˉ¹). Groups I and II differed significantly in match intensity during very low/low speed zones and the number of high-intensity activities in comparison with groups III and IV (P < 0.001). Full match analysis revealed that activity profiles did not differ significantly between quarters. Conclusions: Notable differences in the volume of activity were displayed across the functional classification groups. However, the specific on-court requirements of defensive (I and II) and offensive (III and IV) match roles appeared to influence the intensity of match activities and consequently training prescription should be structured accordingly

International Public Health Research Involving Interpreters: a Case Study from Bangladesh

Background: Cross-cultural and international research are important components of public health research, but the challenges of language barriers and working with interpreters are often overlooked, particularly in the case of qualitative research. Methods: A case-study approach was used to explore experiences of working with an interpreter in Bangladesh as part of a research project investigating women's experiences of emergency obstetric care. The case study: Data from the researcher's field notes provided evidence of experiences in working with an interpreter and show how the model of interviewing was adapted over time to give a more active role to the interpreter. The advantages of a more active role were increased rapport and "flow" in interviews. The disadvantages included reduced control from the researcher's perspective. Some tensions between the researcher and interpreter remained hard to overcome, irrespective of the model used. Independent transcription and translation of the interviews also raised questions around accuracy in translation. Conclusion: The issues examined in this case study have broader implications for public health research. Further work is needed in three areas: 1) developing effective relationships with interpreters; 2) the impact of the interpreter on the research process; and 3) the accuracy of the translation and level of analysis needed in any specific public health research. Finally, this paper highlights the importance to authors of reflecting on the potential impact of translation and interpretation on the research process when disseminating their research

Molecular diversity of anthracnose pathogen populations associated with UK strawberry production suggests multiple introductions of three different Colletotrichum species.

Fragaria × ananassa (common name: strawberry) is a globally cultivated hybrid species belonging to Rosaceae family. Colletotrichum acutatum sensu lato (s.l.) is considered to be the second most economically important pathogen worldwide affecting strawberries. A collection of 148 Colletotrichum spp. isolates including 67 C. acutatum s.l. isolates associated with the phytosanitary history of UK strawberry production were used to characterize multi-locus genetic variation of this pathogen in the UK, relative to additional reference isolates that represent a worldwide sampling of the diversity of the fungus. The evidence indicates that three different species C. nymphaeae, C. godetiae and C. fioriniae are associated with strawberry production in the UK, which correspond to previously designated genetic groups A2, A4 and A3, respectively. Among these species, 12 distinct haplotypes were identified suggesting multiple introductions into the country. A subset of isolates was also used to compare aggressiveness in causing disease on strawberry plants and fruits. Isolates belonging to C. nymphaeae, C. godetiae and C. fioriniae representative of the UK anthracnose pathogen populations showed variation in their aggressiveness. Among the three species, C. nymphaeae and C. fioriniae appeared to be more aggressive compared to C. godetiae. This study highlights the genetic and pathogenic heterogeneity of the C. acutatum s.l. populations introduced into the UK linked to strawberry production