Strengths of sulfur-basalt concretes

Sulfur used in bonding high strength basalt aggregates to form sulfur-basalt concrete

Design study of general aviation collision avoidance system

The selection and design of a time/frequency collision avoidance system for use in general aviation aircraft is discussed. The modifications to airline transport collision avoidance equipment which were made to produce the simpler general aviation system are described. The threat determination capabilities and operating principles of the general aviation system are illustrated

Yesterday’s Doctors:The human aspects of medical education in Britain, 1957–93

In the wake of the Second World War there was a movement to counterbalance the apparently increasingly technical nature of medical education. These reforms sought a more holistic model of care and to put people – rather than diseases – back at the centre of medical practice and medical education. This article shows that students often drove the early stages of education reform. Their innovations focused on relationships between doctors and their communities, and often took the form of informal discussions about medical ethics and the social dimensions of primary care. Medical schools began to pursue ‘humanistic’ education more formally from the 1980s onwards, particularly within the context of general practice curricula and with a focus on individual doctor–patient relationships. Overall from the 1950s to the 1990s there was a broad shift in discussions of the human aspects of medical education: from interest in patient communities to individuals; from social concerns to personal characteristics; and from the relatively abstract to the measurable and instrumental. There was no clear shift from ‘less’ to ‘more’ humanistic education, but rather a shift in the perceived goals of integrating human aspects of medical education. The human aspects of medicine show the importance of student activism in driving forward community and ethical medicine, and provide an important backdrop to the rise of competencies within general undergraduate education