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In the current economic climate, the huge rise in the levels of debt incurred by professional football clubs challenges the need to improve their efficiency levels. Hence, analysis of their productivity is essential and represents an integral dimension to any realistic and efficient strategy. Any such strategy includes the identification and analysis of the inputs and outputs that underpin club sustainability. The purpose of this paper is to evaluate the relationship between the team performance of professional European football clubs and the stability of their financial efficiency.

The sample spans 15 professional football clubs that won the league titles in the leading football leagues (the English, German, Spanish, Italian and French leagues) in the period between 2009 and 2014. The analysis made recourse to the data envelopment analysis method.

The results demonstrate that of the 15 clubs analysed, only 10 proved efficient. Football is now an industry that moves major quantities of financial capital and holds the attentions of large groups of fans worldwide. However, despite this attractiveness, the financial crisis and recession, ongoing since 2008, increasingly requires the better management of such resources. To this end, clubs should improve their control over the financial resources available given the positive relationship prevailing between the sporting performance of clubs and their levels of financial efficiency.

Analysis of the efficiency levels of the inputs and outputs encapsulating performance related financial variables may aid in improving the standards of planning and sustainable management at professional sport clubs.

Composite materials and metallic structures already compete for the next generation of single-aisle aircraft. Despite the good mechanical properties of composite materials metallic structures offer challenging properties and high cost effectiveness via the automation in manufacturing, especially when metallic structures will be welded. In this domain, metallic aircraft structures will require weight savings of approximately 20 per cent to increase the efficiency and reduce the CO₂ emission by the same amount. Laser beam welding of high-strength Al-Li alloy AA2198 represents a promising method of providing a breakthrough response to the challenges of lightweight design in aircraft applications. The key factor for the application of laser-welded AA2198 structures is the availability of reliable data for the assessment of their damage tolerance behaviour. The paper aims to discuss these issues.

In the presented research, the mechanical properties concerning the quasi-static tensile and fracture toughness (R-curve) of laser beam-welded AA2198 butt joints are investigated. In the next step, a systematic analysis to clarify the deformation and fracture behaviour of the laser beam-welded AA2198 four-stringer panels is conducted.

AA2198 offers better resistance against fracture than the well-known AA2024 alloy. It is possible to weld AA2198 with good results, and the welds also exhibit a higher fracture resistance than AA2024 base material (BM). Welded AA2198 four-stringer panels exhibit a residual strength behaviour superior to that of the flat BM panel.

The present study is undertaken on the third-generation airframe-quality Al-Li alloy AA2198 with the main emphasis to investigate the mechanical fracture behaviour of AA2198 BMs, laser beam-welded joints and laser beam-welded integral structures. Studies investigating the damage tolerance of welded integral structures of Al-Li alloys are scarce.

During the last few years there has been an increase of interest in work-based learning (WBL), which can be understood as a process of both developing workplace skills and promoting labor force productivity. This paper aims to map the scientific landscape related to WBL research worldwide.

combined bibliometrics and network analysis techniques to analyze data of scientific publications related to WBL indexed at the Web of Science (WoS) Core Collection.

results show an increase of publications over time: Education & Educational Research as the most frequent research area to which the articles were assigned, the UK and Australia as the main countries and Monash University (Australia) and Middlesex University (England) as the main organizations producing knowledge on WBL.

By offering a global scientific landscape of WBL research published so far, the authors aimed to contribute to future academic debates and studies in this field of knowledge.

We present a critical literature review debating Brazilian research on social and environmental accounting (SEA). The aim of this study is to understand the role of politics in the construction of hegemonies in SEA research in Brazil. In particular, we examine the role of hegemony in relation to the co-option of SEA literature and sustainability in the Brazilian context by the logic of development for economic growth in emerging economies. The methodological approach adopts a post-structural perspective that reflects Laclau and Mouffe’s discourse theory. The study employs a hermeneutical, rhetorical approach to understand and classify 352 Brazilian research articles on SEA. We employ Brown and Fraser’s (2006) categorizations of SEA literature to help in our analysis: the business case, the stakeholder–accountability approach, and the critical case. We argue that the business case is prominent in Brazilian studies. Second-stage analysis suggests that the major themes under discussion include measurement, consulting, and descriptive approach. We argue that these themes illustrate the degree of influence of the hegemonic politics relevant to emerging economics, as these themes predominantly concern economic growth and a capitalist context. This paper discusses trends and practices in the Brazilian literature on SEA and argues that the focus means that SEA avoids critical debates of the role of capitalist logics in an emerging economy concerning sustainability. We urge the Brazilian academy to understand the implications of its reifying agenda and engage, counter-hegemonically, in a social and political agenda beyond the hegemonic support of a particular set of capitalist interests.

The primary goal of domestic washing and drying processes is to deliver clean and dry clothes, but they often result in excessive wrinkling of fabrics. This study aims to evaluate the wrinkling of linen fabric using image processing techniques after these processes and to quantify various drying performance indicators.

An image processing software was developed to quantify the smoothness level of linen fabrics subjected to domestic washing and drying processes. Additionally, different washing parameters in a front-loading washer that affect fabric wrinkling were evaluated. Three drying cycles (easy-iron, normal and extra-dry) in a condensation dryer were also analyzed in terms of moisture and fabric wrinkling parameters.

The results demonstrated a close relationship between water extraction from the fabrics and wrinkle formation. The shortest drying cycle with milder temperatures produced wetter and less wrinkled fabrics at the end of the drying cycle. Conversely, the longer, higher-temperature programs completely removed the moisture from the linen fabrics but resulted in greater wrinkling.

The development of an image processing technique to quantify the wrinkling of linen fabric allowed for more objective evaluation of this parameter. Additionally, this study allowed for the correlation of various drying indicators with the wrinkling generated in the linen fabric.

Social network sites are key marketing tools that allow brands to connect and engage with consumers. However, there is still a lack of evidence of their value for football brands. This research aims to understand the motivations for fans to engage with their favourite football brands on Facebook and Instagram.

An online survey was performed, resulting in 214 valid responses. As the social media strategy followed by the football brand analysed was built around games, the authors divided fans into two groups based on the main method in which the club's games are watched: in stadium versus mediated. Multiple linear regression analysis was used to explore the relationship between motivations and fans' engagement, through content consumption and contribution, on Facebook and Instagram. Analysis was performed first with the whole sample and then by group (stadium attendance vs mediated attendance fans).

The findings show that social influence, entertainment, searching for information and rewards are the most relevant motivations for consumers to engage with brand-related content on Facebook. Entertainment, rewards and social influence are the main motivations influencing consumer interactions on Instagram. Group moderation was only confirmed in the impact of social influence on Facebook page content consumption.

The results provide valuable insights into the social media marketing activities of sports brands, which will assist brand managers to develop strategies for effectively stimulating engagement with the different groups of fans.

This research aims at studying the influence of a classroom’s inner environmental conditions on undergraduate students’ performance using an experimental methodology.

The Uchida-Kraepelin test (U-K test) was applied to measure the performance of a group of 47 students in a selected classroom that was arranged according to the following experimental conditions: air-conditioning on, and doors and windows closed (D1); doors and windows open, and air-conditioning off (D2); air-conditioning off, and doors and windows closed (D3). After completing the tests, questionnaires were distributed to evaluate the students’ assessment of each set of environmental conditions.

On-site measurements of humidity and carbon dioxide levels stress the importance of ensuring good natural ventilation through open doors and windows, independently of whether the air-conditioning system is operated or not. Also, the authors find that the students’ self-assessment regarding the inner environmental conditions for each studied set was entirely accurate, with set D3 being assessed as the worst. The U-K test scores for each environmental set did not show statistically significant differences, which means that, in the studied conditions, the student’s performance in the tests was not affected by the inner environmental conditions.

There is a direct relationship between the building’s indoor conditions and an occupant’s health. Factors such as poor maintenance, bad indoor environmental quality (IEQ) and building age will worsen the building’s condition and negatively impact the occupant’s health. Educational buildings with poor IEQ can reduce the concentration and performance of occupants.

School is an important place to help students grow in their various capabilities. They spend approximately 30% of their daily lives in schools for their educational activities. Since most of their activities are performed indoors, indoor environmental attributes, such as light, heat, air and sound, should be maintained as required. In general, schools are not thermally comfortable. The extreme thermal environment of classrooms affects students’ concentration. Thermal discomfort may also cause irritation. In addition to reduced concentration, such an environment could also cause tiredness, sluggishness and health problem.

Despite the importance of the issue, scientific investigations of the correlations between students’ performance and the quality of scholar buildings’ inner environmental conditions are still relatively recent. In this context, this research further explores the effect of a classroom’s different environmental inner conditions on the performance of undergraduate students at a university in São Paulo/Brazil.

The purpose of this study is to analyze the aspects of the organizational culture (OC) of companies operating in the Brazilian oil, gas and biofuels (O&G) sector based on semistructured interviews with managers of these organizations and its content analysis.

This research was conducted based on semistructured interviews with 12 managers of Brazilian O&G companies and analyzed with a computer-assisted qualitative data analysis software, namely, MAXQDA™.

The results make it possible to obtain the perception of managers about OC, generally understood as a set of attributes and variables of social order, supported by the historical–culturalist theoretical approach. Information about the explicit and implicit manifestation of culture, as well as the evaluation of the most appropriate research instruments and metrics, were also obtained after the interviews.

This study presents detailed results about OC and its characteristics in the perception of managers of the O&G companies that operate in the Brazilian market.

This piece of research provides an overview on supplementary education in Brazil based on the available literature.

Literature review.

In a country plenty of social and educational contrasts, student failure and high repetition rates in basic education are the main factors of supplementary education flourishing. Additional factors are the quick expansion of access at all levels of schooling and the ascension of a new lower middle class that can afford to pay for supplementary tutoring. Tutors at their homes and in small offices are still one of the most common means for students who want to overcome their difficulties and improve their knowledge and skills. However, franchising outlets have grown since the 1980s and in particular the 1986 with the winds of globalization. Their most important branches are foreign languages and preparatory courses, especially for college entrance and public servant selection examinations. This branch of business has been financially very attractive for entrepreneurs. Official data on family budget show that families spend each year a significant amount of resources, impacting the sophistication and complexity of the supplementary education market. In sum, supplementary education is a result of quality deficiencies and inequity. At the same time, it increases the lack of equity between students from different human capital backgrounds.

Main limitation is that research on supplementary education in Brazil is still recent and scarce. On the other hand, till now, no public policy has paid attention to this phenomenon.

Public policy, research, and evaluation fields must consider the phenomenon of supplementary education in Brazil as an important variable contributing to inequity and to academic performance. This chapter calls attention to the need of increasing research on this issue.

As it is more valued and easily available to relatively more privileged social groups, supplementary education in Brazil contributes to increasing education inequity.

This chapter contributes to improving knowledge on supplementary education in Brazil, and its causes and implications. This portrait of the Brazilian scenario can also be instrumental for comparative education purposes at regional and global levels.