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To prepare pre-service mathematics teachers (PSMTs) in Egypt, learning statistics as a subject takes place at the faculty of science, apart from what is going on at the faculty of education. The Organization for Economic Co-operation and Development has highlighted this dilemma as follows; “Pre-service education in Egypt is characterized by a separation of theory from practice, in the belief that student teachers will put it into practice later in schools” (OECD, 2015, p. 120). The purpose of this paper is to propose a microteaching lesson study (MLS) model that bridges the gap between learning free content pedagogies and teaching statistics, consequently, enhances PSMTs’ pedagogical content knowledge.

The ethnographic approach has been employed, and hence, the national faculty policy guidelines have been revised through Grossman’s (1990) model. Moreover, a focus group of PSMTs’ opinions has been investigated to interpret the aforementioned situation and provide meaningful insights.

As a result, the MLS model rooted in constructivism theory has been introduced. Furthermore, supported discourse to enhance PSMTs’ pedagogical content knowledge (PCK) of teaching statistics is described.

The MLS model may help to change PSMTs’ perception concerning the gap between theory and practice. Meanwhile, it could be an endeavor to reform PSMTs’ initial views regarding what learning and teaching of statistics look like, through enhancing their PCK of teaching statistics. Furthermore, engaging them in such environments to be a part of the learning community and learn more from the experts is crucial.

The purpose of this paper is to examine the effectiveness of the functioning of HACCP principles in certified and non-certified food businesses.

The data were collected by audits made in 40 food businesses of various food industry sectors. All food businesses were located in Poland where the HACCP system is obligatory. Half of the evaluated businesses implemented one or more private voluntary certified standards. The audit form contained 134 detailed questions covering 12 steps and seven principles of HACCP implementation and functioning. The obtained results were analyzed using a t-test, Spearman’s test, and cluster analysis.

The overall assessment of the HACCP principles in certified food businesses was higher than in non-certified ones. However, the functioning of HACCP principles in practice was assessed much lower than the system implementation in all business groups, despite certification and the type of food industry. In each of the food industry sectors both implementation and functioning of HACCP principles were evaluated higher in certified than in non-certified food businesses. Further research is needed to explain why, despite certification, the functioning of the mandatory HACCP principles is often incomplete and what factors affect the correct operation, as well as if these are sufficient to ensure food safety.

The main limitation of this research is a small sample of only 40 food businesses of various food industry sectors located in Poland. Due to the small sample, the research should be considered as the preliminary or scoping study. Although the method applied in the study allowed rapid evaluation of implementation and functioning of HACCP principles in food businesses, more work and analyses should be done for its reliability and validity.

The obtained results gave a lot of practical information, e.g.: first, the overall assessment of the HACCP principles in the certified food businesses is higher than that in the non-certified ones; second, the functioning of the HACCP principles in practice is weaker than the system implementation despite certification; third, in some cases the passing certification schemes do not result in a company having excellent food safety practices; and fourth, the applied method allows rapid evaluation of implementation and functioning of HACCP principles. However, more work and analyses should be done for its reliability and validity.

It is believed that certification strengthens HACCP functioning in food businesses. However, the study has shown that functioning of HACCP principles in practice was assessed much lower than the system implementation in all business groups, despite certification and the type of food industry. This indicate that even in certified food businesses HACCP functioning is often incomplete, which may have an impact on food safety.

The paper presents additional and detailed data on the functioning of HACCP principles in certified and non-certified food business. Despite certification and the type of food industry sector, the functioning of HACCP principles in practice was assessed much lower than the system implementation in all business groups. The method applied in this study allowed rapid evaluation of implementation and functioning of HACCP principles in food businesses. However, more work and analyses should be done for its reliability and validity.

A one‐day colloquium on Developments in Robotic Sensors, held by the Institution of Electrical Engineers on 14 February, drew contributions from an interesting variety of contributors.

To design a flexible integrated robotic assembly and rework (remanufacturing) cell for assembly, selective assembly and rework of advanced surface mount components (SMCs) using the generic methodology developed in this paper.

Manual rework procedures are investigated for all advanced SMCs. General and specific component‐related rework considerations are obtained and necessary tooling candidates for automation are determined. This is followed by determination of the specific automated rework procedure and selection of suitable tooling for automated robotic rework and generation and evaluation of design concepts.

The developed methodology, which considers the reflow tool at the centre of the development process, has worked well in designing a flexible integrated robotic assembly and rework cell.

This study identified the rework requirements for advanced SMCs, the essential features for rework reflow tools, criteria for comparing reflow tools, and a generic procedure for design and concept selection.

It provides valuable knowledge for designers of flexible integrated robotic assembly and rework cells for assembly, selective assembly and rework of advanced SMCs.

This paper seeks to report the perceptions of costs and benefits of the Hazard Analysis Critical Control Points (HACCP) implementation, according to the level of HACCP implementation and operation, for the Greek food industry.

A questionnaire was developed to identify the costs and benefits of HACCP implementation. Data were collected among 91 companies located in northern Greece. The Statistical Package for the Social Sciences (SPSS – Release 12.0.0, September 2003, for Windows) was used for the data analysis.

The results indicate that the major difficulties encountered during HACCP implementation and operation were associated with two factors: staff training and motivation and production flexibility. The reported benefits derived from HACCP implementation operation were ascribed to three factors: clientele benefits, product improvements, and improvements in production procedures. In addition, the survey revealed that there was a significant variation in the cost of implementing and operating HACCP between individual companies. Moreover, in most cases, both HACCP implementation and operation cost were inaccurately estimated by previous budgeting.

It is certain that a good understanding of the costs and benefits associated with the HACCP implementation and operation can be helpful to food businesses. The motivation of food businesses to implement and operate an HACCP system will reflect upon prior expectations of the costs and benefits involved.

The purpose of this paper is to analyze the status of the implementation of ISO 22000 in the food industry in Spain. The study identifies the main difficulties faced by firms during the adoption process, the benefits obtained, and the most influential benefits on firms overall satisfaction with ISO 22000.

A questionnaire was developed to identify the difficulties and benefits for ISO 22000 implementation. Data were collected among 189 Spanish certified firms. Factor analysis and multiple linear regression were used.

ISO 22000 is used by firms operating in all links of the food chain (FC). Size of the firm is not a factor that determines its implementation. Exporter firms are more attracted to ISO 22000 certification. All sample firms experienced difficulties throughout the implementation process, being those related with time and money the most relevant. The benefits which most contributed to the firms’ satisfaction were internal in nature, in particular, those related to improved efficiency and food safety.

Despite the many difficulties, both material and organizational, that sample firms experienced in implementing ISO 22000, and the complexity of the standard, the overall satisfaction is high.

The sample analyzed comprised certified firms, including representatives of all links in the FC from farm to table. Prior research specifically aimed at analyzing ISO 22000 implementation and its benefits is very scarce.

This study aims to review the effect of copper percentage in Sn-based solder alloys (Sn-xCu, x = 0–5 Wt.%) on intermetallic compound (IMC) formation and growth after laser soldering.

This study reviews the interfacial reactions at the solder joint interface, solder joint morphology and the theory on characterizing the formation and growth of IMCs. In addition, the effects of alloying and strengthening mechanism, including wettability, melting and mechanical properties are discussed.

This paper presents a comprehensive overview of the composition of tin-copper (Sn-Cu) solders with a potential to enhance their microstructure, mechanical characteristics and wettability by varying the Cu percentage. The study found that the best Cu content in the Sn-xCu solder alloy was 0.6–0.7 Wt.%; this composition provided high shear strength, vibration fracture life value and ideal IMC thickness. A method of solder alloy preparation was also found through powder metallurgy and laser soldering to improve the solder joint reliability.

This study focuses on interfacial reactions at the solder joint interface, solder joint morphology, modelling simulation of joint strength and the theory on characterising the formation and growth of IMC.

The paper comprehensively summarises the useful findings of the Sn-Cu series. This information will be important for future trends in laser soldering on solder joint formation.

NOT for a long time have books and libraries featured in the correspondence columns of The Times and other newspapers as regularly as they have in 1960. Earlier in the year Sir Alan Herbert's lending rights' scheme had a good run, and we have clearly not yet heard the last of it. Indeed, a Private Member's bill on the subject is to have its second reading in Parliament on December 9th. More recently, the Herbert proposals have had a by‐product in the shape of bound paperbacks, and a correspondence ensued which culminated in Sir Allen Lane's fifth‐of‐November firework banning hard‐covered Penguins for library use.

The use of lasers to selectively solder joints in electronic assemblies has a number of advantages over methods which involve heating of the whole assembly. However, the localised energy delivery means that the heating and melting behaviour of the solder is particularly dependent on external and process influences. This paper aims to propose a new approach to monitoring and feedback control of the melting process through image acquisition and processing.

In order to evaluate the proposed feedback strategy, a series of experiments have been performed using a semiconductor diode laser controlled by a PC, which also performs image acquisition and processing operations. Two main processing techniques, based on edge detection and Fourier analysis, have been evaluated.

It has been shown that the proposed technique is capable of controlling laser pulse duration to correct for variations in joint geometry, material parameters and laser energy delivery and results in more consistent solder joint formation than is achieved using fixed pulse durations.

The results demonstrate that image processing is a viable technique for the control of laser soldering processes. This could significantly increase the range of applications of laser soldering techniques where determination and control of pulse parameters have been one of the major challenges.

Although some work has been conducted on the use of pyrometer feedback to control laser processing, it appears that no work has been published on the use of image processing. While the processing algorithms themselves are not novel, this is a new application of these algorithms.

The application of category theory to interoperability to increase understanding of the problems and to facilitate the development of practical tools for their solution.

Category theory is naturally suited to handling interoperability. The use of first order predicate logic in many information systems may be justified through its completeness. However, the work of Gödel shows that such systems are undecidable if they rely on formal systems of number and/or sets. For interoperability dyadic higher order logic is required, which is neither complete nor decidable if based on sets. However, pure category theory is still axiomatic so is also neither complete nor decidable. Applied category theory based on cartesian closed categories for process is natural and is both complete and decidable. Gödel's theorems therefore do not apply.

The paper finds that composed adjunctions appear particularly well‐suited for modelling interoperability, with composition of distinct functors for mapping across a number of levels and of endofunctors for business process interoperability. The monad/comonad category provides a powerful abstraction of the business process. The development of a tool based on categorial principles written in Haskell may be a way forward but only as an initial set model approach.

This paper applies categorial constructions which permit a natural formal approach to interoperability.