In this article, we put forward a new strategy for teaching the concept of energy. In the first section, we discuss how the concept is currently treated in educational programmes at primary and secondary level (taking the case of France), the learning difficulties that arise as well as the main teaching strategies presented in science education literature. In the second section, we argue that due to the complexity of the concept of energy, rethinking how it is taught should involve teacher (...) training specifically developed for the concept. In our view, Epistemology and the History of Science and Technology (EHST) is the best method for a full understanding of the concept of energy and should thus be included in the teacher training programme. In the third section, we provide a general framework for a teacher training programme on energy, based on the history and epistemology of the concept and structured on the following three questions: ‘What is the origin of the concept of energy?’, ‘What is energy?’ and ‘What purpose does the concept of energy serve?’. (shrink)

Objectives: To clarify how lay people and health professionals judge the acceptability of ending the life of a terminally ill patient.Design: Participants judged this acceptability in a set of 16 scenarios that combined four factors: the identity of the actor , the patient’s statement or not of a desire to have his life ended, the nature of the action as relatively active or passive , and the type of suffering .Participants: 115 lay people and 72 health professionals in Toulouse, France.Main (...) measurements: Mean acceptability ratings for each scenario for each group.Results: Life ending interventions are more acceptable to lay people than to the health professionals. For both, acceptability is highest for intractable physical suffering; is higher when patients end their own lives than when physicians do so; and, when physicians are the actors, is higher when patients have expressed a desire to die than when they have not . In contrast, when patients perform the action, acceptability for the lay people and nurse’s aides does not depend on whether the patient has expressed a desire to die, while for the nurses and physicians unassisted suicide is more acceptable than physician assisted suicide.Conclusions: Lay participants judge the acceptability of life ending actions in largely the same way as do healthcare professionals. (shrink)

Objective: To determine under what conditions lay people and health professionals find it acceptable for a physician to breach confidentiality to protect the wife of a patient with a sexually transmitted disease .Methods: In a study in France, breaching confidentiality in 48 scenarios were accepted by 144 lay people, 10 psychologists and 7 physicians. The scenarios were all possible combinations of five factors: severity of the disease ; time taken to discuss this with ; intent to inform the spouse about (...) the disease ; intent to adopt protective behaviours ; and decision to consult an expert in STDs , 2×2×3×2×2. The importance and interactions of each factor were determined, at the group level, by performing analyses of variance and constructing graphs.Results: The concept of breaching confidentiality to protect a wife from her husband’s STD was favoured much more by lay people and psychologists than by physicians . The patient’s stated intentions to protect his wife and to inform her of the disease had the greatest impact on acceptability. A cluster analysis showed groups of lay participants who found breaching confidentiality “always acceptable” , “depending on the many circumstances” , requiring “consultation with an expert” and “never acceptable ”.Conclusions: Most people in France are influenced by situational factors when deciding if a physician should breach confidentiality to protect the spouse of a patient infected with STD. (shrink)