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As the crucial support component of the propeller power system, the reliability of the operation of submersible pumps is influenced by the lubrication performance of water-lubricated thrust bearings. When the water-lubricated thrust bearings are under start-stop or heavy load conditions, the effect of surface morphology is crucial as the mixed lubrication regime is encountered. This paper aims to develop one mixed lubrication model for the water-lubricated thrust bearings to predict the effects of surface skewness, kurtosis and roughness orientation on the loading carrying capacity and tribological behavior.

This paper developed one improved mixed lubrication model specifically for the water-lubricated thrust bearing system. In this model, the hydrodynamic model was improved by using the height of the rough surface and its probability density function, combined with the average flow model. The asperity contact model was improved by using the equation for the Pearson system of frequency curves to characterize the non-Gaussian aspect of surface roughness distribution.

According to the results, negative skewness, large kurtosis and lateral surface pattern can improve the tribological performance of water-lubricated thrust bearings. Optimizing the surface morphology is a reasonable design method that can improve the performance of water-lubricated thrust bearings.

In this paper, one mixed lubrication model specifically for the water-lubricated thrust bearing with the effect of surface roughness into consideration was developed. Based on the developed model, the effect of surface morphology on tribological behavior can be evaluated.

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-08-2023-0247/

This study investigates the efficiency of value relevance and faithful representation when stock market price derivates from its firm value to the investigated IT companies listed in FTSE Taiwan 50. The empirical investigation reveals one financial indicators: Return on equity (ROE) has explanatory ability among seven financial indicators, earnings per share (EPS), book value (BV), dividend yield (Div.), price–earnings ratio (P/E), ROE, return on assets (ROA), and return on operating asset (ROOA) to both sampled companies, United Microelectronics Corporation, UMC, (2303) and Taiwan Semiconductor Manufacturing Company Limited, TSMC, (2330). Furthermore, the empirical results indicate that the higher order moments, skewness and kurtosis, of price deviation do not provide a reliable prediction or explanatory power for stock price trends.

Entrepreneurship institutions exhibit substantial gender discrimination despite worldwide efforts to decrease the phenomenon. The MENA area has a low percentage of women entrepreneurs since little is known about women’s desire to start their businesses. The authors use the theory of planned behavior (TPB) to explain what influences women's propensity toward entrepreneurship and what factors discourage them.

TPB is a psychological theory explaining how individuals act in certain situations. The authors created their database by using a systematic questionnaire. Overall, 350 women entrepreneurs contributed to their dataset. Finally, the authors used structural equation modeling to verify their hypotheses.

This study helps them to shed light to better understand the dynamics of Entrepreneurial Intention, in women from Lebanon. The authors do not find any relationship between lack of knowledge, funding, networking and entrepreneurial startup intention for Lebanese women. The role of dynamic capabilities in the entrepreneurial landscape of Lebanon, particularly for women, is substantially highlighted by the full mediation observed in the relationship between lack of knowledge and entrepreneurial start-up intentions. The findings discovered that these capabilities could fully mediate the negative impact of lack of networking on the intention to commence entrepreneurial ventures.

This research illustrates and explains how dynamic capabilities mediate the relationship between women entrepreneurs' challenges and their intention to start a business in the Lebanese context.

In comparison to other countries, power generation in Sub-Saharan Africa is poor. The demand for power has surged in recent times and continues to increase at a fast rate. The public–private partnership (PPP) model has been identified as an option to address the challenges in the power sector. The purpose of this research paper is to critically explore the reasons for entering into PPP power projects in Ghana by the public and private parties.

Questionnaires were used to elicit responses from respondents using a two-round Delphi survey. From 60 respondents contacted in round one, 48 responses were obtained, and these 48 respondents further took part in round two. Mean score ranking was used to rank the reasons for entering into PPP power projects, while analysis of variance (ANOVA) was run to test significant difference in perceptions among the respondents.

From round 2 of the Delphi survey, the significant reasons for public sector entering into PPP power projects were as follows: achieving improved value for money, access to additional capital, increased certainty of projects and greater efficiency of project delivery services. For private sector, most significant reasons were as follows: obtaining of investment support, improvement in private sector’s international image and synergy with public sector. From ANOVA analysis, there were significant different perceptions among some of factors on the respondent profile variables and the reasons for entering into PPP power projects, while other factors did not have significant different perception.

Significant reasons for both public and private sectors identified would be incorporated by the government when PPP policy guidelines and laws are reviewed. This will aid in the effective implementation of PPP for power projects.

The primary intent of this study was to assess the influence of novelty-seeking on the satisfaction of consumers. The investigation concentrated on Malaysian consumers who have experience using online food delivery (OFD) applications.

To perform the research, non-probability and convenience sampling methods were enforced to gather the required data. An online questionnaire in the form of a Google Survey was conducted in Kuala Lumpur, Malaysia. Upon completion of the survey, the results were analyzed using SPSS software. Both the Service Quality (SERVQUAL) model and expectation disconfirmation theory (EDT) were exploited to shed light on the impact of consumer satisfaction.

Analysis of responses from the 250 participants unveiled that novelty-seeking positively influences consumer satisfaction. The finding depicted that reliability and responsiveness have the most positive impact on consumer satisfaction whereas tangibility has no effect on the satisfaction of consumers by using OFD applications.

This study had three main limitations: first, the limitations on access to the participants during the pandemic; second, combining quantitative and qualitative methods to obtain more accurate results; third, the study was limited to the context of Kuala Lumpur, Malaysia.

The conclusions brought to the fore that OFD marketers should provide appropriate service quality while concentrating on novelty and well-designed apps to surge consumer satisfaction.

OFD apps have facilitated customers' access to various meals and helped food vendors survive in the competitive marketplace. A new aspect, novelty-seeking, is added to the SERVQUAL dimensions (i.e. empathy, tangibility, reliability, assurance and responsiveness) identified in the literature review.

The construction sector is recognized for subjecting its workers to various psychological pressures and mental stressors. As a result, it is crucial to explore and discover effective strategies to support these workers in managing and enduring these demanding circumstances. Mental toughness is a concept that has been advocated to aid individuals in coping and adapting to pressures and challenges. Therefore, it is imperative to explore strategies critical to developing mental toughness among construction professionals. Thus, the purpose of this study is to identify critical strategies for the development of mental toughness among construction professionals.

A comprehensive literature review was conducted using Google Scholar, Scopus, ScienceDirect and PubMed databases to identify the strategies for the development of mental toughness. These identified strategies were used to develop a structured closed-ended questionnaire to aid in data collection. Of the 317 questionnaires distributed, 207 were collected and used for data analysis. The data were analysed using mean score ranking and one sample t-test.

The study highlighted 12 critical strategies for the development of mental toughness among construction professionals. These include recognizing and rewarding achievements, taking time for self-care, organizing mental training programs, using positive self-talk, embracing a growth mindset, providing social support/developing a strong support network, creating a challenging training environment, engaging in regular physical exercise, fostering a mastery motivational climate, setting clear but challenging goals, practicing mental imagery and practicing reflection on setbacks and failures. The analysis results indicated that all of the strategies, except one (which involves practicing reflection on setbacks and failures), displayed significance. By incorporating these strategies, construction firms and the industry as a whole can empower their workforce to cope and/or overcome the various demands and stressors that work and life places on them.

The study highlights the significance of recognizing and rewarding achievements, fostering a growth mindset and implementing mental training programs to cultivate mental toughness among construction professionals. Moreover, promoting self-care practices and offering social support are essential strategies for enhancing mental resilience in the construction industry. By adopting these evidence-based approaches, construction organizations can create a mentally tough workforce capable of handling the challenges and demands of the industry effectively.

This study contributes significantly to the general body of knowledge in mental health management among employees in the construction industry. It does set the pace for the development of the general well-being of construction professionals in the achievement of mental toughness goals.

Management soundness is essential for the effectiveness of any industry, most especially in any Islamic financial sector, whereby fairness and justice are the key factors to be observed. This paper aims to examine the management soundness of the takaful industry regarding their asset quality, re-takaful and actuarial and earning and profitability.

This study obtained quarterly data from 2019Q1 to 2021Q4 from the Islamic Financial Services Board across Malaysia, Brunei, Saudi Arabia, Jordan and the United Arab Emirates. The panel data modelling with random-effect and fixed-effect estimators were used for the analysis.

The finding revealed a strong relationship between re-takaful and earnings with management soundness and a weak relationship between asset quality and management soundness. In addition, the result established a significant and strong association between management soundness and earnings and profitability. Therefore, re-takaful and profitability contributed more to the management soundness of the takaful industry than asset quality during the study. An increase in earnings and profitability to enable the takaful industry to pay the claims, especially in calamity, and more focus on the quality of the asset they invested in could enable the smooth running of their day-to-day business affairs.

More attention is required on the quality of assets in their portfolio for the sustainability of the takaful industry to fulfil their underlying objectives. Management soundness in the takaful industry should address the challenges of managerial lathery, which some studies linked with operational inefficiency because of unskilled personnel in the takaful industry. This could benefit takaful clients, irrespective of religion, to attain their associated share of benefits from the Islamic insurance industry.

To the best of the authors’ knowledge, this is the first empirical study that examined the effectiveness of takaful management across Malaysia, Brunei, Saudi Arabia, Jordan, and the United Arab Emirates.

The study aims to estimate the short- and long-run effects of monetary policy on residential property prices in South Africa. Over the past decades, there has been a monetary policy shift, from targeting money supply and exchange rate to inflation. The shifts have affected residential property market dynamics.

The Johansen cointegration approach was used to estimate the effects of changes in monetary policy proxies on residential property prices using quarterly data from 1980 to 2022.

Mortgage finance and economic growth have a significant positive long-run effect on residential property prices. The consumer price index, the inflation targeting framework, interest rates and exchange rates have a significant negative long-run effect on residential property prices. The Granger causality test has depicted that exchange rate significantly influences residential property prices in the short run, and interest rates, inflation targeting framework, gross domestic product, money supply consumer price index and exchange rate can quickly return to equilibrium when they are in disequilibrium.

There are limited arguments whether the inflation targeting monetary policy framework in South Africa has prevented residential property market boom and bust scenarios. The study has found that the implementation of inflation targeting framework has successfully reduced booms in residential property prices in South Africa.

Demand for private investment in infrastructure, notably in the power sector remains high, and this is anticipated to expand with the passage of time. Very little research currently exists on the power sector and specifically the private sector influencing factors (PSIFs) for entering into public–private partnerships (PPPs). The purpose of this study is to explore influencing factors for private sector participation in PPP power projects in Ghana.

Using purposive and snowball sampling techniques, questionnaires were used to gather responses from experts in the PPP power sector domain in a two-round Delphi survey. Reliability analysis was conducted using Cronbach’s alpha coefficient and level of agreement tested using Kendall’s concordance. Mean score ranking, analysis of variance (ANOVA) and Chi-square test were the main analysis conducted on the influencing factors.

The most significant PSIFs were: obtaining of investment support; improvement in private sector’s international image; synergy with public sector; sharing of risks; and gaining of profits. From ANOVA results, all the influencing factors had no significant different perception between the number of years in PPP practice and the motivations for the private sector entering into PPP power projects. Using Chi-square, the association between the variables indicated they were statistically significant.

The findings in this study are significant for multinational power generation firms that seek to enter the Ghanaian energy sector to help fill the generation gap and deficit.

The output of this research contributes to the checklist of influencing factors for private sector participation in PPP power projects and enhances the development of PPP practice.