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The following are shortened versions of papers read at the recent symposium on the corrosion of metals in buildings. The symposium was arranged by the Corrosion Group of the Society of Chemical Industry and was held at the Institution of Civil Engineers.

Fibreglass Appointment J. CREEK has been appointed deputy managing director of Fibreglass Ltd. Mr. Creek joined Fibreglass Ltd. in 1952 as general sales manager and was appointed to the board in 1954.

Metal Corrosion in Buildings The Corrosion Group and the Road and Building Materials Group of the Society of Chemical Industry are jointly arranging a symposium on corrosion of metals in buildings, to be held at the Institution of Civil Engineers, Great George Street, London, S.W.1, on Thursday, March 21, 1957, from 9.30 to 6 p.m.

The purpose of this paper is to explore patient and staff views of a new intervention “Talking Groups” within a medium secure setting.

Seven patients and eight members of staff who had attended Talking Groups in the medium secure wards participated in semi-structured interviews. Interviews were transcribed and analysed using thematic analysis.

The analysis revealed four key themes related to the aims, content and perceived benefits of Talking Groups: information; relationship building; engagement and patient involvement in developing activities/interventions.

If Talking Groups are extended to other wards in the medium secure unit, information sessions should continue as part of the groups, as these were valued by patients and provided useful information about transition, human rights and medication.

The findings suggest that Talking Groups have benefits for patients and staff within this medium secure setting. Findings from this evaluation can be used to inform the development of Talking Groups across different wards in this unit.

This is a film about the causes of an industrial dispute and has been made for the National Federation of Building Trades Employers in consultation with the National Federation of Construction Unions.

Project Technology is, to date, one of the few serious attempts to counteract the drift away from science and technology in schools. The approach is basically one of improving technology's image both in the eyes of the pupils and of the academic authorities involved. Schools are encouraged to embark on projects which will prove both relevant and beneficial to society, thus giving the pupils a concept of the positive potentials, while stress is also laid on ‘technology as a discipline’ in an attempt to establish it as an educational qualification as relevant, if not more so, as the pure sciences. Criticism has been made that this tends to relate mainly to brighter children. Whether this is true or not the work of the Schools Council Project Technology team at Loughborough College of Education, is of seminal importance in dealing with the teaching of applied sciences in schools. In this article, Geoffrey Harrison, the Project's director, reviews the aims, development and future potential of this approach.

A witty remark over coffee suggested the title. It was made following a symposium on the Wednesday afternoon on the theme YOU AND CABLE TV, when discussion centred round the theme of television piped into one's home. Nicholas Mellersh of Rediffusion Ltd set things going by outlining what he saw to be the form of cable tv during an experimental period when six stations, provisionally licensed, would be able to channel a wide choice of networks direct into homes. First start was likely to be at Greenwich, where advanced planning was well under way. The immediate sensational difference would be the budget on which such stations worked — perhaps £20,000 to £30,000 for capital equipment (a studio, two VTR units, two studio cameras, a simple telecine system and two outside‐broadcast VTR units); and some £15,000 to £20,000 annual running costs. This implied a staff of about six — ludicrous by comparison with conventional tv set‐ups.

Substance misuse that is co‐morbid with mental disorder may increase the risk of crime, particularly of a violent nature. It is therefore essential that dual‐diagnosis patients in forensic services receive adequate intervention and treatment to minimise future substance use and potential for criminal behaviour. One such intervention is the Relapse Prevention Programme (Saying No; Coping and Social Skills Programme) developed in a high secure forensic hospital. An evaluation of the programme was conducted, with pre‐ and post‐ intervention using four measures, the Drug Taking Confidence Questionnaire (DTCQ), the Multidimensional Locus of Control Questionnaire, the Stages of Change Questionnaire and the Rosenberg Self‐Esteem Scale, with 83 male participants who had completed the programme. Results indicate that there was significant change in the DTCQ post‐treatment while no other measures yielded a statistically significant result. Possible reasons, implication for practice and limitations of the current study are discussed.

The purpose of this paper is to analyse the accuracy of the thrust force of a linear actuator computed with different finite elements models.

A series of 2D and 3D models corresponding to different levels of approximation of the original problem are considered. A reliable error estimator based on dual magnetostatic formulations is used.

A 3D model does not necessarily ensure more accurate results than a 2D model. Because of limitations on the number of mesh elements, the discretisation error in 3D can be of the same order of magnitude as the error introduced by the 2D approximation.

The results emphasise the need to consider errors arising from different simplifications with respect to one another, in order to avoid improvements of the model increasing the complexity but not improving the accuracy of the results.

While working with clients in the last years of his life, Gordon Pask produced an axiomatic scheme for his Interactions of Actors Theory which is a development of his well known Conversation Theory. These axioms are interpretable as a general theory of self‐organisation and are discussed as characteristic of field concurrence and as part of the second‐order cybernetics canon. An application to population density is reported supported by both kinematic and kinetic simulation. Implications for cardiovascular anti‐coagulation therapy and planetary evolution are discussed.