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A known finite element model is significantly enriched in order to take into consideration the variations of material parameters that are provoked by elevated temperatures due to fire environment. On the basis of this ‘heterogeneity acquired model’ a numerical iterative procedure is implemented that permits to describe the performances of beam structures exposed to fire. Efficiency of the proposed model and relevant procedure are shown by some numerical results which are partly and successfully compared with experimental ones obtained by other researchers.

This paper aims at showing that the finite element method is the most important numerical tool to analyse bio‐solids or bio‐fluids because of the constitutive complexity and unusual clinical input data and requirements involved. These features are absolutely mandatory and modify the mentality of an expert of FEM when he wants to contribute really to the progress of medical practice in their several forms, from biological basis to the surgical assistance. In this context, a clear view of the hierarchic importance of the phenomena involved is necessary to reply correctly to medical operators and to choose the right level of scale. While a scholarly culture of FEM and relative developments have to appeal the attention of biomedical engineers, at the same time their attention mainly is focused on the problem to solve, which must be validated clinically and experimentally. So while convergence remain a typical goal of the analyst, accuracy must be compared with the medical sensitivity. To do this, some physical conditions, less important in other application fields, as the boundary conditions, must be modelled in order to avoid that any model refinement gives unappreciable precision while tends to disregard what a clinician or a surgeon is able to understand and to use in the context of his professional practice. Setting up correct boundary conditions is an emblematic topic because it concerns a typical approach of computational methods applied to biomedical engineering which must consider two separate scale into analysis or a design approach. When a district of the body is to be analysed, the main goal should be to define correctly the subdomain that the district represents with respect to the whole and then to analyse other subdomains inside, at a level more and more micro, as into a system of Chinese boxes. When a medical device is to be designed a systemic view must be acquired. In this paper, we will start from this underlying feature concerning just FEM applications of a knee design carried out by the research staff of the Laboratory of Biological Structure Mechanics. Then other uses of FEM will be described as analysis fragments through problems studied by the authors and referenced in bibliography.

Explores organizational learning based on the interpretations of actors in the organizational setting. Brings out the major point that events of organizational change are subject to multiple and competing interpretations and that labelling a particular event as “organizational learning” can be seen as an act of power through which a progressive and positive interpretation of organizational events is privileged over other interpretations. Argues that, although the metaphor of “learning” is a useful tool for organizational analysis, focusing only on learning marginalizes the darker themes of people’s organizational experience and leaves us with a more partial appreciation of organizational life.

PROGRESS in most branches of engineering has been dependent upon model tests, and in no branch has the testing of models been of greater importance than in that of aeronautics. The earliest flights were made on models; and after the first successful flight of the full‐sized aeroplane, the development of aircraft to their present state of efficiency has been bound up, at every step, with the information obtained from model tests.

Many engineering staff in the Health Service, from craftsmen to professional engineers, enter from outside the service at varying stages in their careers and from a variety of previous employments. Whilst more is now being done in the way of basic training via a substantial craft apprenticeship scheme and an honours degree studentship scheme, it is likely that substantial outside recruitment will continue for the foreseeable future. The Health Service is not primarily an engineering organisation, engineering staff total only 10 000 out of a total of 800 000 employees and the main training effort is of course in the medical, para medical, and nursing fields. Thus the engineering side of the Health Service contains numbers of staff trained in their basic trade or profession, but lacking knowledge of areas specialised to the Health Service. Because of their diversity of backgrounds and the breadth of knowledge required in the Health Service there are also gaps in more basic knowledge. Also, given the pace of change in some technologies, updating is necessary for all staff.

In the USSR industrial robots (automatic manipulators) are considered to be one of the most important means of achieving complex industrial automation. They provide a means for human emancipation from dangerous, hard and boring labour and solution to the problem of the more efficient use of labour resources. At present the programs for development, production and application of industrial robots are being implemented in the Soviet Union on the basis of a state integrated 5‐year plan covering the key branches of industry and involving the Academy of Sciences and Higher Educational Institutions. A second similar program will be completed by 1980. It is based on the principle of central state unification of the major components of robots, a series of standard sizes and consequently the development of robot‐equipped standard technological complexes. Simultaneously, research is being carried on in the development of the next generation of robot devices. Some other aspects of the problem are also being investigated including the development of methods for evaluating the economic efficiency of robot application as well as social aspects and training of personnel.

Considers which interactive marketing behaviours will result in the broadest word‐of‐mouth or the largest volume of new client referrals. Suggests that the intensity and variety of client participation during the service delivery process is predictive of positive word‐of‐mouth and referrals. Reports on a study examining participation during service delivery which highlighted four key factors – tangibility, attendance, empathy and meaningful interaction. Maintains that these results support interactive marketing management in the field of complex services and can help the creation of a specific service delivery system.

Two new instruments from Elcometer Instruments of Manchester, the 204 and 269, detect pinholes and flaws in oatings non‐destructively from 0–500 microns on any conductive substrate. Battery powered, both units are lightweight, easy and quick to use and reliable in the field. Using the well‐proven ‘wet sponge’ method — a low voltage is passed through a damp sponge which is run across the coating to be tested. If a flaw is encountered the current is conducted to the substrate and an audio alarm sounds.

Leadership development transforms the lives of many students and leadership educators regularly witness these changes. But little research has articulated what is being taught that facilitates this change, how we can make it happen more often, or how we can measure this change. These transformations contribute to desirable outcomes including student persistence and academic achievement. Leadership studies programs have great potential to contribute to these positive student outcomes especially with first-year students.

Using the Social Change Model of Leadership Development, we delineate how the study of leadership aids students in experiencing these transformations, as defined by Schreiner’s Thriving Model, along with example lessons that serve elements in both models. Significant implications are discussed, including greater engagement with first-year students and outreach to at-risk students. This is followed by recommendations for leadership educators and a discussion of future research focus areas.

This paper aims to present a method of reproducing multi-object structures from materials of diverse physical properties with the use of models fabricated by means of rapid prototyping (RP) techniques.

A process of modelling complex anatomical structures of soft tissues and bones using mandible models as examples was described. The study is based on data acquired through standard computed tomography. Physical models of examined objects were fabricated with RP technology from a 3D-CAD virtual model.

In the analysis of complex medical issues, beside numerical methods, one can simultaneously make use of experimental tests to verify obtained results. In the case of experimental tests, it is necessary to fabricate physical models with appropriate material properties. RP techniques used in the method ensure accurate reproduction of the external shape of the fabricated model, whereas consecutive stages allow us to construct moulds and create internal structures within a finished model by wax cast models.

The application of a physical RP model makes the identification of medical problem more efficient and the reconstruction of pathological alterations for experimental tests clearer. It prevents the simplification of assumptions to experimental analysis. The approach may reduce costs of fabricating models for experimental studies and offers the possibility of using materials of desired properties.

The approach developed by the authors and presented in this paper was submitted for patent protection as “A Method of Reconstructing Medical Models with Internal Structure and the Use of Materials of Diverse properties” – patent application no. P.398644.