Differences in technique between sprinters and distance runners at equal and maximal speeds

In the finishing kick of a distance race, maximizing speed becomes the focus even if economy may be sacrificed. If distance runners knew how to alter their technique to become more sprint-like, this process could be more successful. In this study, we compared the differences in technique between sprinters and distance runners while running at equal and maximal speeds. Athletes consisted of 10 Division I distance runners, 10 Division I sprinters, and 10 healthy non-runners. They performed two tests, each consisting of a 60-m run on the track: Test 1 at a set pace of 5.81 m/s, while Test 2 was maximal speed. Video was collected at 180 Hz. Significant differences (P < 0.05) between the sprint and distance groups at maximal speeds were found in the following areas: speed, minimum hip angle, knee extension at toe-off, stride length, contact time, and recovery knee at touchdown. In Test 1, sprinters and distance runners displayed many of the same significant differences. The control group was similar to the distance group in both trials. As distance runners attempt to sprint, the desired adjustments do not necessarily occur. Distance runners may benefit from biomechanical interventions to improve running speed near the end of a race.     

Masters of the Universe? Resource Dependency and Interorganizational Power Relationships at NASA

On February 1, 2003, the space shuttle Columbia broke apart as it re-entered the atmosphere. Months later, the Columbia Accident Investigation Board determined the immediate cause of the crash, but it also alluded to relationships NASA has with other organizations as being problematic, suggesting that Columbia was a painful symptom of a deeper disease. This paper uses resource dependency theory and structuration theory together to examine NASA's interorganizational network, illustrating that NASA is involved in multiple toxic relationships and that a pattern has developed through NASA miscues in the last 20 years. This case study demonstrates the advantages of using these two theories together, how such integration provides a useful perspective for understanding power and change in interorganizational relationships. The paper also discusses practical suggestions for NASA specifically, but also for others as organizations become more dependent on external stakeholders and interorganizational relationships.     

An ‘at‐risk’ curriculum for ‘at‐risk’ students? Special educational needs and disability in the new Australian Curriculum

The number of students who are ‘at risk’ including those with special education needs and or disabilities is increasing rapidly worldwide in all schools. This has prompted widespread debate regarding the impact of initiatives in Curriculum, Assessment and Reporting for this group of students. Teachers, parents and administrators need to have further information to enable them to contribute to the development of content, assessment and reporting processes in the curriculum that are inclusive, relevant, reliable and valid. This paper explores some of the issues and dilemmas raised by recent policy discussions regarding the inception of a first national Australian Curriculum. It draws purposively on literature relating to developments in England and Wales, where national curriculum provision has existed for over 25 years, as well as the responses of a group of stakeholders (teachers and leaders) from both England/Wales and Australian schools and settings. These data highlight both tension and opportunity in this area of work.     

Single cell proteins: a new source of animal feeds

In the light of predictions of future protein shortages the non-agricultural routes to protein production have become an industrial reality. These routes are based on the continuous fermentation of micro-organisms to produce single cell proteins. Seen as only a long-term possibility a few years ago, many commercial enterprises now have successful SCP production facilities, while research and development in this field continues at a rapid pace.     

Problem Interpretation and Resolution via Visual Stimuli: The Use of ‘Mood Boards’ in Design Education

This paper defines and discusses ‘mood boards’– those assemblages of images and, less frequently, objects, which are used to assist analysis, creativity and idea development in design activity. There is need for discussion since little published information currently exists to guide students and tutors. The paper proposes that mood boards can assist problem finding as well as problem solving. Primarily, mood boards provide a mechanism for students and practising designers to respond to perceptions about the brief, the problem as it emerges and the ideas as they develop. The construction of mood boards potentially stimulates the perception and interpretation of more ephemeral phenomena such as colour, texture, form, image and status. They are, like Debono's lateral thinking techniques, partly responses to an inner dialogue and partly provocation to become engaged in such a dialogue. Examples are drawn from recent work in the field of industrial design at Loughborough University.