Newton and Colour: the Complex Interplay of Theory and Experiment

The general aim of this paper is to elucidate some aspects of Newton's theory of light and colours, specially as presented in his first optical paper of 1672. This study analyzes Newton's main experiments intended to show that light is a mixture of rays with different refrangibilities. Although this theory is nowadays accepted and taught without discussion it is not as simple as it seems and many questions may arise in a critical study. Newton's theory of light and colour can be used as an example of the great care that must be taken when History of Science is applied to science teaching. An inadequate use of History of Science in education may convey to the students a wrong conception of scientific method and a mythical idea of science.     

Determinants of the half-turn with the ball in sub-elite youth soccer players

We explored the biomechanics of the 180° change-of-direction with the ball (half-turn) in soccer. We aimed at identifying movement strategies which enhance the players’ half-turning performance, by characterising technique kinematics and understanding the structure of biomechanical and anthropometrics variables. Ten Under-13 sub-elite male players were recorded with an optoelectronic motion analyser while performing a 5-m straight dribbling followed by a half-turn with the sole. Joints kinematics differences between faster and slower trials were found in support-side hip rotation, driving-side hip adduction, trunk flexion and rotation, and arms abduction. To unveil the data-set structure, a principal component (PC) analysis and a stepwise linear discriminant analysis were performed using 30 biomechanical parameters and four anthropometric variables for each trial. Seven retained PCs explained 79% of the overall variability, featuring combinations of original variables that help in understanding the factors facilitating fast half-turns: keeping short steps, minimising lateral and forward body movements, and centre-of-mass lowering, even with ample lower limbs ranges of motion (RoM); abducting the upper limbs while limiting trunk flexion and pelvic inclination RoM. Balance and task-constrained exercises may be proposed to improve this technique. Moreover, a quantitative knowledge of the movement structure could give coaches objective insights to better instruct young players.     

Virtual Teaching Dispositions in an Open Distance Learning Environment: Origins,Measurement and Impact

An understanding of the key characteristics and implicit competencies underlying online teaching is essential to distance education institutions that embark on the assertive use of technology in their tuition development and delivery. The Virtual Teaching Dispositions Scale (VTDS) assists in investigating professional teaching dispositions associated with effective online instruction. It was initially validated among academic staff members at a residential university in the United States of America (USA). Strong support was found for the construct's cognitive, pedagogical and social presence that served as the conceptual foundation for developing the scale. The aim of this study was to validate the VTDS among academic staff members of an open distance learning (ODL) institution and to make suggestions for improving online teaching in this environment. This study highlights the need for interventions aimed at enhancing academic staff members’ experienced level of virtual/technological presence.     

Distance Education for Primary and Secondary Teacher Training in Turkey

This paper describes two teacher training programmes offered through Anadolu University's Open Education Faculty (OEF). The first programme, which began in 1985‐1986, is a pre‐bachelor certificate for 130,000 primary school teachers. The second programme, started in 1990, offers a university degree to 54,000 secondary school teachers. Pedagogy, course materials, delivery systems and evaluation are discussed for both programmes.     

Visualizing Academic Librarians: An Arts-informed Inquiry

This research was undertaken by five librarians from Deakin University Library Australia as part of a professional development project. The objective was to collect qualitative data on the perceptions of librarians by academics and library colleagues from Deakin University. The ways in which academics perceive librarians, as well as how other library staff perceive librarians, are relatively under-explored areas. This study investigates the topic through an analysis of drawing and other visual representations, based on a study design that applied a visual, arts-based methodological approach. Participants were invited to focus groups where they were provided with a variety of craft materials, asked to create a visual representation of liaison librarians, then discuss their artifact. The data consists of twenty-eight artifacts, which were content analyzed, and semi-structured interview recordings, which were transcribed and analyzed for themes. Participants expressed liaison librarians positively, as helpers and connectors, as a gateway to knowledge, with complex and varied roles, as trusted sources, and as relationship builders. By drawing attention to these themes, the participants highlighted that liaison librarians are invaluable to Deakin University.     

Development of Manager‐Academics at Institutions of Higher Education in Catalonia

Managers at Spanish universities are having to deal with increasingly complex managerial tasks as a result of current changes in higher education. This paper presents the results of a study into the professional development of deans and department heads at universities in Catalonia. At management level, these universities are typically based on an elected, rotating model rather than an appointed or permanent one. The findings from 23 qualitative interviews and a focus group identified three phases in the development of academic management: learning and contextualization, development of functions, and the institutional projection and transmission of management tasks.     

Bottom line: Education is the great equalizer. Or is it?

Brenda Marina and Nickole Holmes explore obstacles to access to higher education that mar our American myth.