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THE 28th International Air and Space Show at Le Bourget will be the largest yet held. One hundred and twenty‐five British companies will be taking part and this number represents well over 90 per cent of the British aerospace industry's production and research capacity. The theme of British participants will be ‘Aerospace through the Seventies’ and displays will include illustrations of projects for the next decade, as well as current products and research programmes. The Salon has been organized so that each day will be devoted to emphasizing a particular aspect of aeronautical activity: 29th May Press Preview; 30th May Official Opening Day; 31st May Philatelists Day and Aerospace Orientation Day; 1st June General and Business Aviation; 2nd June Aeromedical Aviation; 3rd June Electronics Industry; 4th June Equipment Industry; 5th June Rotary Wing Industry and Special Steel Studies; 6th June Foreign Missions Day; 1th June International Flying Display; 8th June International Air Display. The Show will be open to the public every day from 9.30 a.m. to 6.30 p.m., except on Friday 6th June which will be Foreign Missions Day and admission will then be by invitation only.

The C3 Framework is a recent example in a long history within the field of social studies education of efforts to engage teachers and students in inquiry-oriented teaching and learning. While there is some research regarding the efficacy of the inquiry design model (IDM) of the C3 Framework, few studies have sought to engage social studies teachers as coresearchers as they integrate the framework. This study addressed a persistent divide between the theory and practice of integrating inquiry in the social studies.

In this study, a classroom teacher and a university-based researcher conducted a hybrid action research study to understand the instructional shifts that occur as the C3 Framework is fully implemented into instruction.

Based on the findings, the authors present a theory of action to highlight key opportunities to shift instruction, while also acknowledging the factors that might mitigate those shifts. In particular, the authors focus on teacher decision-making and contextual factors that allow for and hinder the full integration of inquiry.

This study is unique in developing a hybrid action research/qualitative case study that provides insider knowledge related to improving social studies teaching and learning.

The Common Core Standards (CCS) for English Language Arts and College, Career, and Civic Life Framework (C3) require social studies educators to reconsider connections between literacy and history teaching. In this article we examine three perspectives on literacy teaching: content area literacy, disciplinary literacy, and critical literacy. While some scholars see these perspectives as contradictory or in competition, we demonstrate how content, disciplinary, and critical literacy teaching can complement each other and facilitate teaching to and beyond the CCS standards and C3 framework in intermediate, middle school, and high school history instruction. Our article includes teaching examples as well as appendices of teacher resources.

In both elementary schools and elementary teacher education programs, social studies is marginalized while standards require increasingly more ambitious reasoning, reading, and writing in social studies than has historically been documented in American elementary schools. The purpose of this paper is to explain the challenges that elementary social studies teacher educators face in preparing elementary school teachers to facilitate the kind of ambitious social studies envisioned in the NCSS’s C3 Framework and advocate an approach to successfully address these challenges.

This paper articulates a targeted and ambitious approach to elementary social studies teacher education. The authors describe five recommendations from the teacher education literature for supporting preservice teachers in learning disciplinary-oriented social studies teaching, recommendations that guided the redesign of the social studies methods course. The authors then highlight key aspects of the redesigned methods course and demonstrate how the authors engaged the challenges inherent in the work of elementary social studies teacher education.

Although this paper is not arranged in such a way as to substantiate empirical findings, the purpose of the paper is to demonstrate an approach to elementary social studies education aligned with extant literature on preparing teachers to engage in reform teaching practices, specifically those disciplinary oriented practices suggested in NCSS’s C3 Framework. As such, the paper should be read as a perspective on practice.

The type of disciplinary-oriented approach described here is increasingly under investigation in secondary teacher education research and similar approaches are under investigation in elementary math and science education research. To the authors’ knowledge, the approach is novel in elementary social studies education. Furthermore, the authors believe it offers a direction for researchers interested in gaps in the literature related to practice based teacher education and disciplinary-oriented social studies teacher education.

The approach described here offers specific guidance and resources for teacher educators who are struggling with the challenges of the contemporary social studies education landscape and/or who wish to focus methods courses in disciplinary ways.

Research in social studied education has demonstrated that when students are exposed to disciplinary practices in social studies, their literacy skills improve and they learn analytical skills that support their development as citizens (consumption of media, participation in public discourse, ability to discern arguments).

As noted above, the approach described here is novel in elementary social studies education. Combining a disciplinary approach with a practice-based frame in elementary social studies represents an opportunity for empirical research and offers new approaches to the practice of teacher education and early career professional development.

This paper aims to evaluate the longer-term impact of the 12-month Welsh clinical leadership fellowship.

Semi-structured interviews with 10 out of 14 trainee doctors who were fellows between 2013-2016, exploring how leadership knowledge and skills were used in clinical practice, impact on patient care and influence on careers. Data, gathered in 2017 when participants had completed the fellowship between 1-3 years, were analysed thematically.

All found the fellowship rewarding. The experience was felt to advantage them in consultant interviews. They gained insight into the wider influence on organisations and the complexity of issues facing senior clinicians. Although subtle, the impact was significant, equipping fellows with negotiation skills, enabling them to better influence change. Indirect impact on clinical practice was evidenced by enhanced confidence, teamworking skills and progression of improvement projects. However, the use of skills was limited by lack of seniority within teams, demands of medical training and examinations. The negativity of others towards management and leadership was also noted by some.

Small participant numbers limit generalisability.

The fellowship is designed to equip participants with skills to lead improvements in healthcare delivery. Those more advanced in their medical training had greater opportunity and seniority to lead change and were better placed to apply the learning. This has implications for whom the training should be targeted.

A rare study exploring the longer-term impact of a leadership programme on later clinical practice, which adds to the body of knowledge of impact and efficacy of leadership training programmes in healthcare environments.

This study analyzed gender balance in the texts and illustrations of three recently published, high school US history textbooks and one alternate volume of American history. In all of the American history texts analyzed there were significantly more males than females in text content and illustrations. These textbooks focused on the contributions of those famous Americans who have been a part of the historical record. The record is skewed with regard to gender, leaving teachers and students with the arduous task of acknowledging the absence of women while attempting to fill in the gaps through their own research and resources. Standards committees and textbook publishers should change their focus and teachers and students should confront gender imbalance by integrating high quality women’s history resources into the classroom with web-based resources, family and community history projects, young adult literature, history textbook analysis, and the vision of the C3 Framework.

The purpose of this paper is to evaluate and compare the effectiveness and sensitivity of different cleanliness verification tests for post soldered printed circuit board assemblies (PCBAs) to provide an understanding of current industry practice for ionic contamination detection limits.

PCBAs were subjected to different flux residue cleaning dwell times and cleanliness levels were verified with resistivity of solvent extract, critical cleanliness control (C3) test, and ion chromatography analyses to provide results capable of differentiating different sensitivity levels for each test.

This study provides an understanding of current industry practice for ionic contamination detection using verification tests with different detection sensitivity levels. Some of the available cleanliness monitoring systems, particularly at critical areas of circuitry that are prone to product failure and residue entrapment, may have been overlooked.

Only Sn/Pb, clean type flux residue was evaluated. Thus, the current study was not an all encompassing project that is representative of other chemistry‐based flux residues.

The paper provides a reference that can be used to determine the most suitable and effective verification test for the detection of ionic contamination on PCBAs.

Flux residue‐related problems have long existed in the industry. The findings presented in this paper give a basic understanding to PCBA manufacturers when they are trying to choose the most suitable and effective verification test for the detection of ionic contamination on their products. Hence, the negative impact of flux residue on the respective product's long‐term reliability and performance can be minimized and monitored effectively.

To evaluate the effect of synthesised calixarenes as new inhibitors on the corrosion of steel in HCl media at various temperatures.

Calixarenes have been synthesised and tested as corrosion inhibitors. Gravimetric technique and potentiodynamic polarisation and impedance spectroscopy methods were used.

Calixarenes exhibited a good inhibition. Their efficiency decreases slightly with temperature.

It was found that the inhibition efficiency increases with the concentration of inhibitors to reach 92 per cent at 10⁻⁴M.

The efficiency of calixarene derivatives increases with the concentration and falls slowly with temperature to attain 84 per cent at 353 K range. Calixarenes can be used in chemical cleaning and pickling processes.

The originality of this work is to find an inhibitor to give protection close to 100 per cent.

Despite the benefits provided by the implementation of the lean philosophy, the most recent research discusses whether the high degrees of efficiency obtained with the implementation this philosophy could contribute positively or negatively in current pandemic scenario. This study aims to analyze how resilient construction industry companies in Brazil were in the face of the COVID-19 pandemic, comparing the performance of construction companies with different implementation levels of lean construction.

Three case studies were carried out in construction companies in Brazil with different application levels of the lean philosophy.

Among the results obtained, greater resilience to face COVID-19 was verified in those with a higher implementation level of the lean philosophy. Additionally, it was found that the larger the size of the companies surveyed, the greater the level of implementation of the lean philosophy.

Due to the state of pandemic, and the work carried out in the home office, contact with companies was restricted. In addition, few companies actually adopt the lean philosophy in the construction sector in Brazil. Most of companies use only a few lean construction tools in specific sectors. For the few others who actually implement the philosophy, the acceptance to participate in the research was low.

The lean construction is something very new and innovative for the construction sector in Brazil, and there is little evidence of its use. Few companies adopt the philosophy in the country, and many of them also did not experience such an impactful moment in their entire existence. Thus, the analysis of the relationship between lean construction and resilience in the civil construction sector in Brazil is something innovative.

The Bass model was created to analyse the product life cycle (PLC) in order to help sales and marketing departments in their business decision making. The purpose of this paper is to analyse the diferences between the clients assisted and sales variables, to discover which of the two variables is the more useful for the estimation of the PLC phases through the Bass model, thus aiding the managers of company sales and marketing departments.

In this research, the authors analysed the 223,577 clients assisted by a nationwide network of car dealerships, who acquired 36,819 vehicles, during a 24-month period. In the analysis, the Bass model was applied to define the PLC phases; and nonlinear regression models were used to carry out the estimations.

The results show that more consistent estimates of the PLC phases are obtained from the clients assisted variable. This work has theoretical and practical implications that can help business management.

The most remarkable thing about this research is that we have shown that the functionality of the clients assisted variable is greater than the sales variable for the Bass model and, therefore, for PLC estimation.

The results of this research are very useful, since they allow marketing decision makers to obtain more consistent estimations of the PLC phases using the Bass model and the clients assisted variable. This is based on the fact that the use of this variable helps to detect if there is any deficiency in the design of the marketing strategy when the client does not make the purchase.

The data on clients assisted are as easily available to companies as sales data. However, the use of this variable improves PLC analysis and this allows an improvement in company forecasting. Thus, making the clients assisted variable a tool to strategically plan investments in innovation and marketing would reduce uncertainty in business management.

The purpose of this paper is to analyse the diferences between the clients assisted and sales variables, to discover which of the two variables is the more useful for the estimation of the PLC phases through the Bass model, thus aiding the managers of company sales and marketing departments.