Dismantling boundaries in science and technology studies

The boundaries between the history of science and science and technology studies (STS) can be misleadingly drawn, to the detriment of both fields. This essay stresses their commonalities and potential for valuable synergy. The evolution of the two fields has been characterized by lively interchange and boundary crossing, with leading scholars functioning easily on both sides of the past/present divide. Disciplines, it is argued, are best regarded as training grounds for asking particular kinds of questions, using particular clusters of methods. Viewed in this way, history of science and STS are notable for their shared approaches to disciplining. The essay concludes with a concrete example--regulatory science--showing how a topic such as this can be productively studied with methods that contradict any alleged disciplinary divide between historical and contemporary studies of science.     

Educational and indigenous justice in Africa

This article examines the way in which some of the most discriminated against, disadvantaged and marginalised groups on the African continent, are re-defining education through strategies aimed at recognition of rights and social justice. It uses Fraser's analysis of social justice – distribution, recognition and participation – to examine the demands of the indigenous movement in Africa for rights to education. Over the past 10 years the concept of ‘indigenous’ has become embedded in African regional resolutions and reports while communities self-identifying as indigenous have been shaping new political and educational spaces for their participation and decision making about their development and their education. Taking the example of the East African pastoralists and the Maasai of Ngorongoro District in Tanzania, it looks at indigenous communities’ initiatives to define and achieve a qualitative education which is relevant and meaningful for their lives today. It concludes with a discussion of the potential for the indigenous movement in Africa to ‘reframe’ education for the benefit of not only indigenous communities but for all learners.     

Processing of conflicting and redundant stimulus information by pigeons

Selective attention in processing of visual information by pigeons, trained on alternating sessions with two colors (red and green) and two forms (a diamond and an X shape) differentially associated with a left—right key choice task, was examined. A color and a form were presented together on probe trials during sessions in which, on other trials, only one of the dimensions, color or form, was shown. The dimension in effect on the surrounding trials had no influence on choice when the information provided by the two dimensions on probe trials was in conflict—color correct for one choice and form for the other. When both color and form redundantly cued the correct choice, there was no increase in accuracy in comparison with that associated with one dimension. Following separate training on the color and form discriminations, pigeons appeared to base their choices on color on some trials, on form on other trials, but not on both simultaneously. These findings are discussed in terms of an exemplar model of information processing.     

High‐quality interactions with infants: relationships with early‐childhood practitioners’ interpretations and qualification levels in play and routine contexts

This study investigated factors related to the quality of early‐childhood practitioners’ interactions with infants in play and routine contexts. Participants were 24 practitioners working with 9–20‐month‐old infants in long day‐care infant programmes. Video‐recordings of their interactions with a nominated infant during play and in routine contexts were rated for levels of sensitivity and stimulation. Practitioners were asked to interpret extracts of this video footage and these interpretations were rated according to the complexity of the interpretive narrative. Results indicated relationships between practitioner qualification, their levels of interpretive complexity and the quality of their interactions. The quality of play interactions was significantly higher than that of routine interaction. The implications of these findings in relation to the provision of high‐quality infant day‐care programmes are discussed.     

The effects of skin and core tissue cooling on oxygenation of the vastus lateralis muscle during walking and running

Skin and core tissue cooling modulates skeletal muscle oxygenation at rest. Whether tissue cooling also influences the skeletal muscle deoxygenation response during exercise is unclear. We evaluated the effects of skin and core tissue cooling on skeletal muscle blood volume and deoxygenation during sustained walking and running. Eleven male participants walked or ran six times on a treadmill for 60 min in ambient temperatures of 22°C (Neutral), 0°C for skin cooling (Cold 1), and at 0°C following a core and skin cooling protocol (Cold 2). Difference between oxy/deoxygenated haemoglobin ([diffHb]: deoxygenation index) and total haemoglobin content ([tHb]: total blood volume) in the vastus lateralis (VL) muscle was measured continuously. During walking, lower [tHb] was observed at 1 min in Cold 1 and Cold 2 vs. Neutral (P?0.05). Lower [diffHb] was seen at 1 and 10 min in Cold 2 vs. Neutral by 13.5 ± 1.2 µM and 15.3 ± 1.4 µM and Cold 1 by 10.4 ± 3.1 µM and 11.1 ± 4.1 µM, respectively (P?0.05). During running, [tHb] was lower in Cold 2 vs. Neutral at 10 min only (P = 0.004). [diffHb] was lower at 1 min in Cold 2 by 11.3 ± 3.1 µM compared to Neutral and by 13.5 ± 2.8 µM compared to Cold 1 (P?0.001). Core tissue cooling, prior to exercise, induced greater deoxygenation of the VL muscle during the early stages of exercise, irrespective of changes in blood volume. Skin cooling alone, however, did not influence deoxygenation of the VL during exercise.     

Reflections and distortions: Canadian folklore as portrayed in children’s literature

Abstract

In Great Britain and the United States common developmental issues have resulted in the evolution of two very different models of school library provision. In the United States, school libraries are integrated media centers, separate from public library influence, staffed by specialists with dual training in teaching and librarianship, and dedicated to an educational mission. British school libraries are contested terrain with two patterns of staffing, support by Public Library Services, and incomplete formulation of mission and rationale. This article discusses five factors which have facilitated or retarded school library development in the two countries (standards, staffing and certification, government support, rationale, professionalization) and generalizes about development factors and the successful promotion of school libraries.