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The purpose of this paper is to investigate the effectiveness of locking or staking of fasteners with epoxy material systems to prevent loss of preload in aerospace environments.

A quantitative experimental method is adopted to evaluate epoxy material systems for staking of fastener assemblies subjected to varying dynamic and thermal loads. A statistical design of experiments is employed to probe specific design parameters.

Results show that epoxy application can provide satisfactory fastener locking under a variety of service conditions. It is found that: Epon 828 epoxy provides superior fastener locking compared to 3M Scotch‐Weld Epoxy 2216; epoxy application around screw threads is more effective than application around screw head; and abrading the plate surfaces with 180 grit SiC paper is not an effective or useful surface preparation technique.

The paper is limited to two commercial epoxy material systems and does not consider important qualitative considerations for industrial use such as cure time and viscosity.

This and future paper may form the basis of new standards for epoxy staking in the global aerospace industry.

This paper is believed to be one of the very few original experimental studies of fastener staking available in the open literature.

This study aims to examine the impact of fiscal deficit, exchange rate and trade openness on current account deficit (CAD). The study tried to empirically investigate the ‘twin deficits hypothesis’ and ‘compensation hypothesis’ in the Indian context.

Autoregressive distributed lagARDL) bound test approach was used by taking annual time series data from 1978 to 2021. The estimates confirm a significant long-run and short-run relationship between dependent variables, i.e. CAD and independent variables such as the fiscal deficit, exchange rate and trade openness.

The results show that positive shocks of all explanatory variables significantly affect the CAD. CAD and fiscal deficit are significantly associated, as the coefficient of fiscal deficit is positive and significant. The study also found that exchange rate and trade openness significantly affect the CAD. The coefficients of exchange rate and trade openness are positive and significant. The findings show that an increase in CADs results from liberal trade policies that help domestic industries grow their trade and expansionary fiscal policy, leading to a higher fiscal deficit. The negative and significant error correction term suggests that short-run disequilibrium converges to long-run equilibrium at a speed of 19.2%. The findings validate the ‘twin deficits hypothesis’ and ‘compensation hypothesis’ in the Indian context.

It can be inferred from the study that liberal policy to promote economic growth and trade openness should be designed and promoted judiciously. An excessive liberalised approach may impact other macroeconomic variables such as current account balances. Integrating the domestic market with global markets poses a big challenge for countries like India that aspire to penetrate global markets. Furthermore, the Indian policy makers should rigorously work and promote the policies such as Fiscal Responsibility and Budget Management (FRBM) as reduction in fiscal deficits, trade imbalances will also be reduced.

This study contributes to the existing literature on ‘twin deficit’ and trade openness by giving new evidence on the trilemma between designing sustainable fiscal policy by spending wisely without imperilling the country's global presence and CAD.

This paper aims to comprehensively review ultrasonic additive manufacturing (UAM) process history, technology advancements, application areas and research areas. UAM, a hybrid 3D metal printing technology, uses ultrasonic energy to produce metallurgical bonds between layers of metal foils near room temperature. No melting occurs in the process – it is a solid-state 3D metal printing technology.

The paper is formatted chronologically to help readers better distinguish advancements and changes in the UAM process through the years. Contributions and advancements are summarized by academic or research institution following this chronological format.

This paper summarizes key physics of the process, characterization methods, mechanical properties, past and active research areas, process limitations and application areas.

This paper reviews the UAM process for the first time.

The aim of this article is to provide evidence about how the acquisition of competencies through internships influence student learning process results, and about whether learning process results are affected by the gender differences, by considering two sustainable development goals (SDGs) of the 2030 United Nations’ Agenda: Gender Equality (SDG 5) and Quality Education (SDG 4).

The study was carried out on a sample of 273 interns and their supervisors on the bachelor’s degree program in Tourism and Hospitality Management at the School of Tourism and Hospitality Management Sant Ignasi who carried out curricular internships during the 2016–2020 academic years. The university internship and mobility service sends supervisors a questionnaire, the purpose of which is to rate how well students have acquired the competencies and achieved the learning process results during their internship. The supervisors complete and return the questionnaire once the student has completed the internship.

The findings confirm that learning results appear to be positively influenced by certain competencies, especially personal ones such as orientation toward achievement and initiative and entrepreneurial spirit. Other results show the effect of the gender differences, as female students obtain better learning results than male students. Supervisors’ gender also seems to affect results.

The research will help improve the design of internship-based programs of study.

The analysis provides an innovative research and contributes knowledge on the relation between competencies and learning results in the tourism and hospitality education sector in the field of internships and on the role of the gender dimension.

Reports a postal survey of NHS staff in six Districts in the North Western Region. There were 3,525 replies, from staff in five main occupational groups, with clear social gradients in respect of health status, smoking and exercise, but a more complex picture in respect of diet, stress and uptake of preventative services. There were no significant differences in respect of alchohol consumption. Previous research showed social class differences in mortality of NHS staff; this study documents aspects of lifestyle consistent with that. Although the importance of socio‐economic circumstances and social support should not be disregarded, the survey results emphasize the need for NHS managers to reduce the inequality in health experienced by NHS staff, working with ancillary staff as a priority.

The purpose of this study was to evaluate the effects of an online mental health ally program on several measurements of readiness to help and stigma reduction. Allyship is one way to support people with mental health challenges beyond traditional care services.

The efficacy of the program was evaluated in pre and postintervention surveys (n = 26) including measures of self-care, help-seeking intentions, peer-support self-efficacy, advocacy, knowledge of resources and stigma. A within-subject, repeated measures design was conducted analyzing changes at completion. Twenty-six participants who completed the program (either with or without lived experience of mental illness) were included in the study. A subgroup of participants (n = 11) who reported lived experiences of mental illness were assigned additional measures of internalized stigma, stigma stress, stigma resistance and self-esteem.

Analysis of mean differences indicated a statistically significant change in scores pre and postcompletion. The program increased peer-support, help-seeking intentions and self-esteem, while reducing internalized stigma and stigma stress. Findings provide preliminary support for program effectiveness in training individuals to support others and themselves through mental health challenges.

Trained allies might improve the lives of individuals with mental health challenges by reducing discrimination and improving social support. We discuss the implication of allies to complement the mental health system.

To the best of the authors’ knowledge, this is the first exploratory study on the efficacy of an online ally training program for individuals with mental illness. The NoStigmas Ally Program is a novel and original development in ally training.

Although allies have been shown to be effective at helping to ignite positive change for marginalized groups, the literature on ally identity development is fragmented.

We draw from developmental, contextual, and identity theories to review the existing literature and focus squarely on the ally experience, resulting in a synthesized process-based conceptualization of ally identity development.

At each stage, we discuss intrapersonal experiences individuals are likely to have internally, interpersonal experiences that are likely to occur with others, and catalysts for progression to subsequent stages. In doing so, we outline the multilevel factors that influence and are influenced by ally development in hopes of identifying what motivates or dissuades individuals from becoming more active allies.

We provide practitioners and scholars with a deeper understanding of the organizational and societal benefits associated with allyship behaviors, as well as tools for increasing their presence within organizations.

The novel coronavirus 2019 (COVID-19) pandemic provided new and various opportunities for corporate social responsibility (CSR) activities. This study intended to compare three types of CSR activities – product development, in-kind donation and CSR commercial – undertaken by two companies – Nike, Inc. and The Coca-Cola Company in response to the pandemic. The purpose of this study was to investigate how CSR activity type and their attributes affected effectiveness.

This study used an experiment using a 3 (CSR activity type) × 2 (company) mixed factorial design. CSR activity type was a between-subjects factor, and company was a within-subjects factor. The attributes of dynamism and innovativeness, corporate image, brand equity and social media sharing likelihood were dependent variables.

The findings underscored the importance of CSR activity type and their attributes of dynamism and innovativeness in the effects on corporate image and brand equity. Product development and in-kind donation, which were perceived as more dynamic than CSR commercial, resulted in more desirable corporate images. Product development, which was perceived as more innovative than in-kind donation and CSR commercial, did not result in greater brand equity than in-kind donation, but resulted in greater brand equity than CSR commercial. The CSR activity type and their attributes did not affect social media sharing likelihood. Differences in content modes could be considered.

This study advanced the knowledge on the effectiveness of CSR activities by comparing CSR activity types varying in dynamism and innovativeness in the context of a public health crisis that caused unprecedented societal changes and challenges.

Accumulating evidence highlights the importance of microbiota-directed intervention in neuropsychiatric disorders. This study aims to investigate the effects of probiotic supplements as an adjunct therapy in combination with Ritalin in children with attention-deficit hyperactivity disorder (ADHD).

Children with ADHD, aged 6–12 years, who had an intelligent quotient of ≥70 were enrolled in the study. Participants were randomly assigned to either the group that received probiotics or the group that received the placebo in addition to the weight-adjusted dose of Ritalin. Parents were asked to complete the revised Conners Parent Rating Scale–short version (CPRS–RS), and the psychiatrist completed the seven-point Clinical Global Impression–Severity (CGI–S) scale. Two study groups were compared in three time points, including T1 (before intervention), T2 (at the end of fourth week) and T3 (at the end of the eighth week).

A total of 38 participants completed the study. After eight weeks of intervention, the probiotic group had a significant improvement regarding CPRS–RS scores in T2 (9.4 unit, p = 0.014) and T3 (18.6 unit, p < 0.001), compared to placebo. In addition, children in the probiotic group had 0.7 unit lower CGI in T3 (p = 0.018) than the placebo group. A significant reduction of CGI scores was observed in each interval (T2 vs T1, T3 vs T2 and T3 vs T1; p < 0.05). This significant change in CGI score between intervals was also detected in the placebo group in T2 vs T1 (p = 0.002) and T3 vs T1 (p < 0.001). Mean CPRS scores of the groups were different in T2 and T3 (p = 0.011 and p < 0.001, respectively) and mean CGI scores of the two study groups were different in T3 (p = 0.018).

Eight weeks of supplementation with probiotics had a favorable effect on symptoms and severity of ADHD. Therefore, probiotics as an adjuvant treatment might have a promising efficacy regarding the management of ADHD.

Motivated by the scant available evidence, this paper explores the relationship between government political party orientation and infant mortality.

A panel quantile methodology is applied to a data set that consists of 15 countries of the G20 group over the period 2000–2018. The authors control for heterogeneous parameters across countries and quantiles and obtain estimates across the different points of the conditional distribution of the dependent variable.

The findings support the hypothesis that political party orientation has a significant effect on a population health indicator such as infant mortality. The analysis suggests that, to a great extent, left-wing government parties contribute to better health outcomes – when compared to right and centre political parties – both individually as well as interacted with government health expenditure. Moreover, the impact of redistributing policies appears to be of a paramount importance in alleviating infant mortality, while more education and lower unemployment can also contribute to better health outcomes.

The authors explore the relationship between the nature of government political party orientation (i.e. right, centre and left) and infant mortality whilst at the same time gauging the mediating effect of party orientation via government health expenditure on infant mortality. Additional aspects of the impact of other control variables, such as income inequality, unemployment and education on infant mortality are also investigated.