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The purpose of this paper is to review cases of artificial reefs built through additive manufacturing (AM) technologies and analyse their ecological goals, fabrication process, materials, structural design features and implementation location to determine predominant parameters, environmental impacts, advantages, and limitations.

The review analysed 16 cases of artificial reefs from both temperate and tropical regions. These were categorised based on the AM process used, the mortar material used (crucial for biological applications), the structural design features and the location of implementation. These parameters are assessed to determine how effectively the designs meet the stipulated ecological goals, how AM technologies demonstrate their potential in comparison to conventional methods and the preference locations of these implementations.

The overview revealed that the dominant artificial reef implementation occurs in the Mediterranean and Atlantic Seas, both accounting for 24%. The remaining cases were in the Australian Sea (20%), the South Asia Sea (12%), the Persian Gulf and the Pacific Ocean, both with 8%, and the Indian Sea with 4% of all the cases studied. It was concluded that fused filament fabrication, binder jetting and material extrusion represent the main AM processes used to build artificial reefs. Cementitious materials, ceramics, polymers and geopolymer formulations were used, incorporating aggregates from mineral residues, biological wastes and pozzolan materials, to reduce environmental impacts, promote the circular economy and be more beneficial for marine ecosystems. The evaluation ranking assessed how well their design and materials align with their ecological goals, demonstrating that five cases were ranked with high effectiveness, ten projects with moderate effectiveness and one case with low effectiveness.

AM represents an innovative method for marine restoration and management. It offers a rapid prototyping technique for design validation and enables the creation of highly complex shapes for habitat diversification while incorporating a diverse range of materials to benefit environmental and marine species’ habitats.

Although it is a relatively recent conceptualization of malevolent personality, the dark triad (DT) has been widely researched and shown to be responsible for increases in physical violence, controlling behavior, short-term mating preferences and poor relationship quality. This study aims to investigate whether DT traits predict acceptance toward intimate partner violence (IPV) in the general population, addressing a gap in the literature regarding predictors of harmful attitudes toward romantic relationships.

In total, 150 adults aged 18–74 (76% women) completed two self-report questionnaires: the short DT and the IPV attitude scale-revised.

A series of hierarchical multiple regression analyses were conducted, with gender as predictor in the first models and DT traits added as predictors in second models. The results showed that male participants were more accepting of IPV than female participants. Over and above the contribution of gender, psychopathy and Machiavellianism positively predicted overall IPV acceptance, but narcissism did not. Psychopathy and Machiavellianism positively predicted acceptance of psychological abuse, and psychopathy positively predicted acceptance of controlling behaviors. Narcissism did not predict any facet of IPV acceptance.

To the best of the authors’ knowledge, as the first study to explore the roles of DT traits in acceptance of IPV behaviors, the results contribute to the understanding of how these traits may predispose individuals to harmful intimate partner behaviors. These findings can inform IPV prevention efforts to aid in the early identification of individuals who hold maladaptive beliefs surrounding romantic relationships.

Post-migration stress is an important aspect of refugees’ mental health, but little is known about the relationship with insomnia. The purpose of this study was to investigate the assication between different post-migration stress factors and insomnia among Syrian refugees living in Norway.

The authors analysed survey data from the REFUGE study with 873 Syrian adults who resettled in Norway between 2015 and 2017. Potential participants were randomly selected from The Norwegian Population Register. Insomnia was measured using the Bergen Insomnia Scale. Perceived-discrimination, navigation difficulties, financial strain and loss of social status were measured via the refugee post-migration stress scale. The authors ran logistic regression analyses, controlling for socio-demographics, potentially traumatic experiences and symptoms of post-traumatic stress.

Overall, 59% (95% CI, 56%–62%) of the sample reported experiencing insomnia. In the fully-adjusted model, only financial strain and navigation difficulties were significantly associated with increased odds of insomnia. Loss of social status was also related to insomnia but only before adjusting for symptoms of post-traumatic stress.

Financial strain and navigation difficulties appear to be the most important post-migration stress factors in terms of insomnia among Syrian refugees living in Norway. Ameliorating these difficulties could potentially reduce insomnia among refugees. Since insomnia is a risk factor for the subsequent development of post-traumatic stress and depression, it is important to prevent or improve symptoms of insomnia among Syrian refugees, especially considering the high prevalence found in this study.

This literature review aims to assess the current research on healthcare job availability and skilled professionals. The objective of this research is to identify challenges caused by the imbalance between healthcare service demand and qualified professionals and propose potential solutions and future research directions.

The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) method was employed as the guiding framework for conducting this review. A qualitative research design analyzed 38 peer-reviewed, evidence-based research works from 50 journal publications. Inclusion criteria focused on empirical studies, observational research and comprehensive reviews published within the last ten years. Thematic and discourse analysis categorized themes and factors explored in selected publications.

The findings highlight significant challenges in the healthcare sector regarding job availability and skilled professionals. Developed countries face understaffed healthcare facilities, resulting in increased workloads and compromised care. Developing countries experience high rates of unemployment among healthcare graduates due to limited resources and mentorship.

Improving educational infrastructure, expanding training opportunities and increasing healthcare investments are crucial for nurturing a skilled workforce. Implementing effective retention policies, fostering international collaborations and addressing socioeconomic determinants can create a sustainable job market.

The healthcare sector faces critical challenges in balancing job availability and skilled professionals. Strategic solutions are proposed to create a sustainable and equitable healthcare workforce. By implementing recommendations and conducting further research, access to quality healthcare and global public health outcomes can be improved.

Machine learning (ML) analytical tools are increasingly being considered as an alternative quantitative methodology in management research. This paper proposes a new approach for uncovering the antecedents behind product and product–service innovation (PSI).

The ML approach is novel in the field of innovation antecedents at the country level. A sample of the Equatorian National Survey on Technology and Innovation, consisting of more than 6,000 firms, is used to rank the antecedents of innovation.

The analysis reveals that the antecedents of product and PSI are distinct, yet rooted in the principles of open innovation and competitive priorities.

The analysis is based on a sample of Equatorian firms with the objective of showing how ML techniques are suitable for testing the antecedents of innovation in any other context.

The novel ML approach, in contrast to traditional quantitative analysis of the topic, can consider the full set of antecedent interactions to each of the innovations analyzed.

Consistent with the metaphor of narcissists as “emotional vampires” who leave their victims emotionally drained and devoid of energy, this research suggests that certain factors, such as subjective norms, perceived behavioral control, and religious beliefs, can reduce the level of narcissistic behavior in organizations. Drawing from the theory of planned behavior (TPB) and self-regulation theory, the current study evaluates the moderating role of Islamic religiosity in the relationship between subjective norms and the intention to behave narcissistically. In addition, this study examines the moderating role of afterlife belief in the relationship between perceived behavioral control and the intention to behave narcissistically.

The research hypotheses were tested using two-wave survey data collected from managers of 103 service organizations (Study 1) and 323 employees of four service organizations (Study 2). This research applies structural equation modeling (SEM) to examine the proposed model using SmartPLS 3 software.

Islamic religiosity had a negative moderating role in the relationship between subjective norms and the intention to behave narcissistically (Study 1 and Study 2). In addition, subjective norms and perceived behavioral control had significant positive effects on the intention to engage in narcissistic behavior among managers (Study 1). However, perceived behavioral control had no significant effect on the intention to engage in narcissistic behavior among employees (Study 2).

The current study not only tests the applicability of the TPB to narcissistic behaviors in Islamic organizations, but it also extends the classic TPB framework by including two moderating variables – Islamic religiosity and afterlife belief.

The purpose of this study is to reveal the different ways in which a group of teachers understand the anger they feel toward the school principals with whom they interact.

The present study was designed and conducted as a phenomenography. In phenomenographic research, the number of different ways in which participants understand a particular phenomenon is revealed. The data from semi-structured interviews with 15 teachers who differed in terms of school level, gender and age were analyzed according to the phenomenographic tradition.

The analysis revealed that although the participants had eight different understandings of the anger in question, all participants had an understanding that was described as “An emotion arising from not being treated with the respect we deserve.”

The source of anger for the participating teachers was the behavior of their principals, which made them feel that they were not considered respectable and valuable. Incorporating this insight into the training of school leaders may lead to useful outcomes in improving the quality of interactions between principals and teachers.

As one of the few examples of phenomenographic research in educational management, the present study contributes to providing a solid foundation for exploring the anger that teachers feel toward their principals by showing how and in what ways participating teachers may understand this feeling.

The present study investigates the relationship between high-performance work systems (HPWS) and employee flourishing-at-work (FAW) through psychological capital (PsyCap) and employee work passion (EWP).

A three-path serial mediation model was constructed to explore the proposed relationships. The hypotheses were empirically tested using SPSS 25 and AMOS 21.0. The study was conducted in India and included a total of 357 hotel employees as participants.

The study revealed that PsyCap and EWP were significant independent mediators between HPWS and FAW. Moreover, PsyCap and EWP were identified as serial mediators in the relationship between HPWS and FAW. Additionally, a direct relationship between HPWS and FAW was also found.

Implementing HPWS in hospitality organizations can foster PsyCap of the employees and foster EWP among their workforce. This approach not only increases the organization's competitive advantage but also enhances employees' holistic well-being, i.e. FAW.

This study marks a pioneering effort to establish a distinct relationship between HPWS and FAW. Moreover, the study introduces an innovative approach by employing EWP to delve into the influence of both HPWS and PsyCap on FAW.

The COVID-19 pandemic has affected many industries, and reports indicate that this includes the illicit drug market. Recent research suggests that the homeless are particularly vulnerable during the pandemic, and the UK Government has acted to house rough sleepers. Research is scarce regarding homeless people’s experiences of the illicit drug market. This study aims to explore homeless people’s experiences of the drug supply in the UK during COVID-19.

Eight homeless people who use illicit drugs, residing in hostels for homeless people in Southampton, participated in semi-structured one-on-one telephone-based interviews.

A thematic analysis revealed five themes: availability of drugs, presence of dealers, quality of drugs, finances and personal experiences. Participants reported varying experiences of the drug supply, with lockdown measures expressed as the main reason for reduced supplies, as users found it difficult to find dealers and generate income for purchasing drugs.

The results may lack generalisability to the wider population, such as rough sleepers and drug dealers, suggesting a need for further research into people’s experiences of the drug supply during COVID-19. Research on this topic could be more in-depth through the use of research methods that are convenient for the homeless population.

Services should invest in harm reduction services and encourage homeless people who use drugs to engage in substitution treatment. Homeless services should provide psychological support for homeless people who use drugs.

The changes in homeless people’s behaviour following the pandemic may have implications for their interactions with the rest of society (e.g. begging in town centres may reduce). These changes in behaviour may also change the way society can best support homeless people.

The results are partially consistent with other research findings about the illicit drug supply; however, they also suggest that some individuals experienced minimal change in the illicit drug supply.

The investigation has appraised the problem of an incompressible laminar steady magnetohydrodynamic (MHD) nanofluid stream over three distinct slendering thin isothermal needles of paraboloid, cylindrical and cone shapes. Water as a base liquid is assumed in this flow model. The influences of the Hall current and variable sorts of magnetic forces have enriched our investigation. Energy and concentration expressions consist of thermophoresis and Brownian migration phenomena. The analysis of thermal and mass slips of the presumed model has also been performed.

A relevant transformation is implemented for the alteration of the leading partial differential equations (PDEs) to the equations with nonlinear ordinary form. Due to the strong nonlinearity of the foremost equations, the problem is solved numerically by embedding the well-known RK-4 shooting practice. The software MAPLE 2017 has been exploited in reckoning the entire computation. To enunciate the investigated upshots, some graphical diagrams have been regarded here. According to technological interest, we measured the engineering quantities like the Sherwood number, the coefficient of drag friction and the Nusselt number in tabular customs.

The obtained consequences support that Hall current intensifies fluid movement when the needle is in a cone shape, while the superior velocity is noticed for cylindrical-shaped needles. The transference of heat responds inversely along with the growths of thermal and mass slip factors.

No work has been performed on the flow model of radiated nanofluid over a variable-shaped thin needle under Hall current, the variable magnetic field and different slip factors.