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Unstable Kelvin-Helmholtz waves are suspected to be responsible for a large part of low-frequency noise radiation in high-speed jets. The purpose of this paper is to check the coherence of numerical and experimental data concerning this phenomenon, in the particular case of a cold subsonic jet.

In the present work, a cross-investigation of the near pressure field is performed on three different data sets: large-eddy simulation (LES) computations, parabolised stability equations (PSE) semi-modal computations and microphone measurements, in order to determine the local amplitudes of unstable waves.

The large coherent structures are found in both LES and experimental results and they are also in good agreement with direct semi-modal computations carried out with the PSE approach.

This work confirms that the unstable wave packets can be extracted from both LES and experimental results, provided that an appropriate modal decomposition is performed.

The famous Uzawa (1961) balanced growth theorem has exercised a tyranny of sorts over macroeconomics for decades. It is the prime reason why researchers use Cobb–Douglas production functions and abstract from considering movements in factor shares. Others have had to recourse to complex explanations for long-run labor augmentation in technical progress. In this chapter, we discuss the issues arising from this problem and propose a way of achieving balanced growth with a short-run production function where the elasticity of factor substitution is less than one, and capital augmenting technology shocks can be permanent. We do so by allowing firms to choose the relative reliance on capital in the production technology and introducing a suitable modification of the production function. We also provide some model simulations in the context of a simple deterministic neoclassical growth model.

The aim of this study is, from the perspective of artisan entrepreneurship, to trace and analyse the artisan's profile in the sustainable development of low population density cross-border territories, using the quintuple helix innovation model.

Ten semi-structured interviews were conducted with cultural and traditional artisans to achieve the proposed objective using a qualitative approach. The artisans are from Northeast Portugal (Bragança, Miranda do Douro, Mogadouro, Vimioso and Vinhais) and Northern Spain (Province of Zamora). The interviews were conducted face-to-face between May and June 2022. The interviews were manually transcribed and subjected to content and lexical analyses using IRaMuTeQ software.

An artisan was identified as an enterprising individual whose marketed handicraft pieces transmit the values and teachings of his community. Innovation, technology, sustainability and circular economy in a family environment, where dedication, resilience, happiness and hard work transmit an identity that places the artisan and his artisan practice as the driving force for the enhancement and promotion of his territory, cultural heritage and identity.

This work is the first study to address and treat the issue of artisan entrepreneurship by analysing and defining the cultural-based and traditional artisan profile in a cross-border and low population density territorial context.

We examine the two-level nested constant elasticity of substitution production function where both capital and labor are disaggregated in two classes. We propose a normalized system estimation method to retrieve estimates of the inter- and intra-class elasticities of substitution and factor-augmenting technical progress coefficients. The system is estimated for US data for the 1963–2006 period. Our findings reveal that skilled and unskilled labor classes are gross substitutes, capital structures and equipment are gross complements, and aggregate capital and aggregate labor are gross complements with an elasticity of substitution close to 0.5. We discuss the implications of our findings and methodology for the analysis of the causes of the increase in the skill premium and, by implication, inequality in a growing economy.

The purpose of this study is, from the perspective of artisan entrepreneurship (AE), to understand how professional and higher education institutions, local authorities, local and cross-border cultural entities and tourism stakeholders perceive AE by collaborating in a network to develop innovative and sustainable strategies, using the Quintuple Helix innovation model.

Using a qualitative approach, 34 semi-structured interviews were carried out with organisations by emailing them a Google Form. The organisations interviewed were from the north-east of Portugal (Bragança, Miranda do Douro, Mogadouro, Vimioso and Vinhais) and the north of Spain (Zamora Province). The data collected was subjected to content and lexical analysis using the computerised lexical analysis software IRaMuTeQ.

AE is seen as the representation of a culture where traditional crafts are the identity of a region. The practical and political implications for decision makers in the Quintuple Helix can be seen in the definition of strategies and proposals that should leverage and define regional and cross-border policies, leveraging the need for networking to define concrete measures and programmes for support and training in entrepreneurship and AE, as well as the creation and/or standardisation of existing support networks.

To the best of the authors’ knowledge, this work is the first study to address and deal with the issue of AE by understanding how professional and higher education institutions, local authorities, local and cross-border cultural entities perceive AE and collaborate in a network to develop innovative and sustainable strategies, through the paradigm of the Quintuple Helix model. It also combines a content analysis and a lexical analysis using computerised lexical analysis software – IRaMuTeQ.

This paper briefly reviews the literature on smoking and smoking cessation programmes for people with intellectual disability, and describes the baseline audit of such a programme for patients resident in a forensic service. The audit describes the prevalence of smoking, its significant associations and the effect of an intervention programme. In total, 79 patients participated in the audit, 48 of whom were smokers on admission (60.8%). Roughly a third of smokers gave up during their hospital stay (N = 15). Those who did not give up significantly reduced the number of cigarettes they smoked per day. Female smokers appeared less likely to give up than men. Length of stay and treatment with anti‐psychotic medication were not significantly linked to smoking behaviour. A simple smoking cessation programme with an emphasis on health education and nicotine replacement therapies appeared to be effective in cutting down smoking rates and tobacco consumption in this population. One should be cautious about generalising the conclusions to all forensic hospital services for people with intellectual disability, as the audit was limited by the lack of a control group and conducted in a single service.

THE Paris Aero Show—the oldest in the world, since it was first held, though unofficially, in December, 1908—took place this year from November 28 to December 14, in its usual quarters, the Grand Palais des Champs‐Elysées. This Salon, the twelfth of the series—as the first official one dates from 1909, there being, of course, a gap from 1914–1918, and after 1922 it laving been decided to hold it in alternate years—is, as usual, conducted by the “Chambre Syndicale des Industries Aéronautiques,” of which M. Fernand Lioré, the well‐known aeroplane and flying‐boat manufacturer, is the present President, M. André Granet being Commissaire‐Général.

WHEN A FRIEND OF MINE retired he had been like most businessmen, a reader of the lighter kind of book—thrillers, 'tecs, westerns—for evenings and weekends. Now he had most of the day for it, too, and I could see he was becoming surfeited with it.