The effects of mid-flight whole-body and trunk rotation on landing mechanics: implications for anterior cruciate ligament injuries

ABSTRACT

The purpose was to quantify the effects of mid-flight whole-body and trunk rotation on knee mechanics in a double-leg landing. Eighteen male and 20 female participants completed a jump-landing-jump task in five conditions: no rotation, testing leg ipsilateral or contralateral (WBRC) to the whole-body rotation direction, and testing leg ipsilateral (TRI) or contralateral to the trunk rotation direction. The WBRC and TRI conditions demonstrated decreased knee flexion and increased knee abduction angles at initial contact (2.6 > Cohen’s dz > 0.3) and increased peak vertical ground reaction forces and knee adduction moments during the 100 ms after landing (1.7 > Cohen’s dz > 0.3). The TRI condition also showed the greatest knee internal rotation angles at initial contact and peak knee abduction and internal rotation angles and peak knee extension moments during the 100 ms after landing (2.0 > Cohen’s dz > 0.5). Whole-body rotation increased contralateral knee loading because of its primary role in decelerating medial-lateral velocities. Trunk rotation resulted in the greatest knee loading for the ipsilateral knee due to weight shifting and mechanical coupling between the trunk and lower extremities. These findings may help understand altered trunk motion in anterior cruciate ligament injuries.     

How Mexico is Striving to Nurture Booksellers and Promote Reading

Citing the small number of bookstores in operation and a poor average annual book consumption among readers in Mexico, publishing industry professionals have long lamented the moribund state of the industry, while calling for more effective legislation to protect both publishers and booksellers and the creation of programs to promote reading among citizens of all ages. But in the last couple of years moves have been made to nurture the book industry and create greater awareness of the importance of reading as a vital cultural pastime, through training programs and by harnessing technological innovation, and while there is still much work to be done, publishers and booksellers alike are optimistic that they are making progress.     

Understanding the impact of commercialization on public support for scientific research: is it about the funding source or the organization conducting the research

This research examines the influence of commercialization on support for scientific research. It compares the effects of the funding source with the type of organization on public support for stem cell research. Using a national Australian telephone survey (n = 1000), the results reveal that support drops significantly when scientific research is funded by private rather than public interests, and even more so when it is conducted in a private company rather than a public university. Respondents' preference for university research was enhanced if they trusted universities, distrusted major companies and believed that the research would be beneficial. A preference for public funding was also associated with lower trust in companies and a belief that the research would benefit people. Implications of these results are discussed in relation to the challenge of maintaining public support in an increasingly commercialized research environment.     

British and Canadian Broadcasting

R.A. Critchley, Television and Media Effect: A Review of the Relevant Research (BBTA Occasional Papers No. 9, 1974—E 3 or about $7.50, paper):

Colour 69: An Advertiser's Guide to Colour Television (1969, about El or $3.00)

Canadian Ownership in Broadcasting: A Report on the Foreign Divestiture Process (Ottawa: Canadian Radio-Television Commission, 1974—apparently free on request, paper).     

Graduate attribute development and employment outcomes: tracking PhD graduates

The provision of diversified research training is regarded as one of the most significant contributions made by the Australian Cooperative Research Centres (CRC) programme [Howard Partners 2003 Howard Partners. 2003. Evaluation of the cooperative research centres programme, Canberra, ACT: Department of Education, Science and Training.  [Google Scholar], Evaluation of the cooperative research centres programme, Department of Education, Science and Training, Canberra, ACT]. Yet, a systematic evaluation of Australia’s CRC research training programmes and outcomes has not yet been undertaken. This article reports on a pilot questionnaire designed to provide the beginnings of such an evaluation. Participants were science‐based research graduates who were awarded with a PhD within the four‐year period 2000–2003 and had completed the majority of their PhD project either in a university school or in a CRC environment. The questionnaire results provide insights into participants’ perceptions of the graduate attributes they developed prior to and during their PhD studies. It also investigates their perceptions about the relative importance of particular skills in university and industry settings. This article argues that understanding the perceptions and employment experiences of recent research graduates is a vital way of ensuring that PhD programmes are more effectively designed to prepare research graduates for a range of careers. In particular, these results confirm the importance of constant re‐evaluation and improvement of all PhD training programmes.