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This study aims to propose guidelines for developing circular products based on waste recovery that are aligned with sustainable production and consumption.

A systematic literature review and case studies on circular product development were conducted. In total, 15 companies with products based on waste recovery and aligned with sustainable production and consumption goal were studied.

The results show the decisions and strategies applied at each stage of the new product development process, including the design for recycling, the use of waste as a raw material for products and the concern for reducing pollution and recovering end-of-life products.

The cases studied meet the goals of efficient use of natural resources and waste reduction by preventing, reducing, recycling and reusing waste. For practitioners, a set of guidelines is proposed to help companies develop circular products based on waste recovery.

Previous studies have not evaluated the new product development process and circularity from the institutional theory and waste valorization perspectives.

This paper aims to discuss how precision teaching holds great promise in enhancing the skills of occupational therapists, physiotherapists and speech and language therapists. Precision teaching plays a significant role in developing fluency in foundational motor and speech skills, leading to improved performance in complex skills.

This paper reviews research focusing on precision teaching’s effectiveness in enhancing oral motor and fine motor skills, such as the Big 6 + 6, and its potential application in related skills.

Precision teaching provides a measurable and efficient approach to skill development, assisting therapists in improving the daily living and communication abilities of individuals with intellectual and developmental disabilities.

The broader implications of precision teaching’s application in therapeutic settings are discussed.

The purpose of the study is to analytically as well as numerically investigate the weight of throughflow on the onset of Casson nanofluid layer in a permeable matrix. This study examines both the marginal and over stable kind of convective movement in the system.

A double-phase model is used for Casson nanofluid, which integrates the impacts of thermophoresis and Brownian wave, whereas for flow in the porous matrix the altered Darcy model is occupied under the statement that nanoparticle flux is disappear on the boundaries. The resultant eigenvalue problem is resolved analytically as well as numerically with the help of Galerkin process with the Casson nanofluid Rayleigh–Darcy number as the eigenvalue.

The findings revealed that the throughflow factor postpones the arrival of convective flow and reduces the extent of convective cells, whereas the Casson factor, the Casson nanoparticle Rayleigh–Darcy number and the reformed diffusivity ratio promote convective motion and also decrease the extent of convective cells.

Controlling the convective movement in heat transfer systems that generate high heat flux is a real mechanical challenge. The proposed framework proved that the use of throughflow is one of the most important ways to control the convective movement in Casson nanofluid. To the best of the authors’ knowledge, no inspection has been established in the literature that studies the outcome of throughflow on the Casson nanofluid convective flow in a porous medium layer. However, the convective flow of Casson nanofluid finds many applications in improving heat transmission and energy efficiency in a range of thermal systems, such as the cooling of heat-generating elements in electronic devices, heat exchangers, pharmaceutical practices and hybrid-powered engines, where throughflow can play a significant role in controlling the convective motion.

This study aims to find the dynamic performance parameters of the journal bearing with micro geometries patterning the arc (crescent) shape textures provided in three specific regions of the journal bearing: the full, the second half and the increasing pressure region. The dynamic behavior of textured journal bearings has been analyzed by computing dynamic parameters and linear and non-linear trajectories.

The lubricant flows between the bearing and journal surface are governed by Reynold’s equation, which has been solved by finite the element method. The dynamic performance parameters such as stiffness, damping, threshold speed, critical mass and whirl frequency ratio are examined under various operating conditions by considering various ranges of eccentricity ratios and texture depths. Linear and non-linear equations of motion have been solved with Ranga–Kutta method to get journal motion trajectories. Also, the impact of adding aluminum oxide and copper oxide nanoparticles to the base lubricant in combination with arc-shaped textures is analyzed to further see any enhancement in the performance parameters.

The findings demonstrated that direct stiffness and damping parameters increased to their maximum level with six textures in the pressure-increasing region when compared with the untextured surface. Also, nanoparticle additives showed improvements above the highest value attained with no inclusion of additives in the same region or quantity of textures.

Engineers may design bearings with improved stability and overall performance if they understand how texture form impacts dynamic properties.

This chapter elucidates the wage differential between male and female informal workers in urban labour market by using employment and unemployment survey 61st (2004–2005) round, 68th (2011–2012), and Periodic Labour Force Survey 2019–2020 data of National Sample Survey Office (NSSO) unit level data. This study found that gender inequality not only increased during getting job but also persists after getting job during wage distribution. Based on the Oaxaca–Blinder (OB) decomposition, it is revealed that gender wage inequality is more in the labour market due to the labour market discrimination, that is, unexplained components. Hence, this study helps researcher, policy makers and government to fix the gender wage discrimination issues exist in the Indian labour market. This will enhance economic growth through the rise of the women labour force participation.

The present chapter attempts to highlight the vulnerabilities of female migrants as compared to non-migrants in the unorganized urban labor market. Informal female migrants working in construction, as domestic workers, tailors/boutiques, and garment workers in the urban unorganized sector of Uttar Pradesh’s selected urban locations, are covered in this chapter. Though the fact prevails that workers in the unorganized labor markets are confronted with various livelihood crunches, still those who are migrants and swelling the urban labor markets are more prone to different vulnerabilities. There is scanty literature on the situation and condition of migrants particularly female migrant workers in India, whereas we know more about the condition of international migrants, mainly migrant workers in the Gulf and other regions. The study is based on interviews with 174 female informal workers who have migrated and 222 non-migrants from various regions of the state to the urban locations of selected cities. Our study also attempts to do an in-depth, qualitative exploration of these vulnerable women’s lives and perceptions and tries to capture layered vulnerabilities, risks, and rewards confronted due to both migration and work in the informal sector. Specifically, the findings reflect upon the fact that how strong societal norms may actually prevent women from acknowledging or articulating the true reasons for their migrations.

This study aims to examine the impact of sector market competition on the ownership structure of publicly listed firms in the Gulf Cooperation Council (GCC) countries.

The authors employed the system-Generalized Method of Moments (GMM) model for panel data, utilizing over 93,000 data points from 6,215 firm-years across six GCC countries from 2010 to 2020.

The results reveal a statistically significant negative relationship between total block holders and institutional ownership for both Herfindahl–Hirschman and Tobin’s-Q competition proxies. This finding suggests that companies operating in monopolistic or oligarchic sectors are likely to attract block holder investors. Moreover, various firm- and country-level factors, including return on assets, growth, size, gross domestic product and political crisis, also exhibit significant relationships with specific ownership variables.

Investigating the influence of competition on block holders’ ownership in the GCC region may provide new insights into the role of competitive markets in fostering economic development, promoting investor protection and shareholder rights, enhancing market efficiency and competitiveness and implementing effective reform policies and strategies.

Despite the significant contribution of GCC countries to global oil commodities, limited market competition research has been conducted in these markets. This study aims to fill this gap by investigating the impact of various firm-, industry-, and country-level factors on firm ownership structure in the GCC region, focusing on the influence of market competition.

Due to increasing socio-ecological concerns, manufacturers are paying ample attention to the strategic decision-making for enhancing customer satisfaction considering Industry 4.0 requirements. Customers' preferences are being considered vital into the decisions related to sustainable supplier selection for building competitive gain. Thus, the objective of this study is to develop a real-case-based empirical approach for evaluating performance of suppliers based on customers' feedback, an area not explored much in literature. The novelty of current study lies in the development of an integrated supplier evaluation and selection model involving three phases: (1) identifying sustainable criteria according to Industry 4.0 requirement through customers' feedback, (2) calculating relative scores of criteria using Z-numbers and (3) determining evaluation weights of suppliers using fuzzy-TOPSIS. The contribution of the study lies in effective validation of the model by considering the case of a manufacturing firm, which aids the firm in evaluating performance of suppliers based on customers' socio-ecological expectations while considering reliable information provided by decision-makers (DMs).

The adoption of e-taxing plays an important role in modernizing tax administration. Ghana, like many other developing countries, has adopted e-taxing to modernize its revenue collection processes and improve its tax-to-GDP ratio. This study aims to examine the current state of e-taxing maturity in Ghana, focusing on the advancements made and what can be done to achieve a mature e-taxing system.

Through qualitative design, interviews were conducted with Ghana Revenue Authority, National Information Technology Agency and Businesses to provide an in-depth understanding of the strengths, weaknesses and opportunities for improving e-taxing maturity.

The study reveals mixed e-taxing maturity. While the digital service aspect of e-taxing has seen progress, digital infrastructure, digital analytics, digital integration and digital culture hinder the full actualization of mature e-taxing.

The findings suggest the need for a comprehensive plan that addresses regulatory, cultural, technical and organizational aspects to drive digital transformation in e-taxing tax implementation.

The lack of resilient infrastructure, especially in rural areas, can worsen societal inequalities. Owing to the lack of telecommunication infrastructure and poor internet connectivity in rural areas, businesses in these areas may lack the needed information for business growth and expansion. This can result in unfair treatment of rural businesses widening the inequality gap between businesses in urban areas and rural areas. Therefore, the study is important from the standpoint that implementing the recommendations will help to bridge the gap between businesses in urban areas and rural areas.

To the best of the author’s knowledge, this study is among the first to conduct an empirical study on e-taxing maturity in Ghana.

Purpose: The study aims to enrich sustainable development assessments by integrating the Happy Planet Index (HPI) with Sustainable Development Goals (SDGs) using locally weighted scatterplot smoothing (LOESS) regression, revealing complex trade-offs among well-being, environmental efficiency, and broader sustainability objectives to guide more nuanced and effective policy actions.

Need for study: This study is needed to address the limitations of traditional economic metrics in sustainable development by offering a holistic framework that incorporates well-being and environmental sustainability, thus providing a more comprehensive understanding of and approach to achieving global sustainability goals.

Methodology: The methodology involves using LOESS (locally weighted scatterplot smoothing) regression to analyse the nuanced interactions between the HPI scores and SDGs, facilitating a deeper understanding of the complex relationship among environmental efficiency, well-being, and sustainability.

Findings: The optimal LOESS model adjustment of SDG scores with the HPI highlights stark national disparities: countries like North Macedonia, Cyprus, and Turkey underperform due to urbanization, inequality, instability, and environmental issues, whereas Finland, Sweden, and Denmark excel in SDG achievements, likely due to robust welfare, environmental policies, political stability, and infrastructure.

Practical implications: This study’s practical implications suggest that integrating HPI with SDGs can guide policymakers towards more effective, balanced strategies for sustainable development, acknowledging the trade-offs between well-being and environmental efficiency to achieve global sustainability goals.