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In the twenty-first century, the use of fossil fuels has increased drastically because the necessity of energy is increasing day by day which affects the world’s economy. The solar energy (photo-thermal energy conversion) system is the most economical and eco-friendly alternative source. To increase the use of domestic as well as commercialization purpose, the authors have reviewed this paper on the solar water heater along with its structural mechanism for energy enhancement and to create easier stair steps for climbing on the green world dream.

In this study, nanotechnology has remarkably built its own use for extending thermal efficiency by using some gradual experiments. It is a phenomenon, like nanofluid (as a working fluid for a direct solar collector), nanocoating (on the surface of a solar-evacuated tube by using the chemical vapor deposition/physical vacuum deposition/sol–gel technique) and nanorod-based solar collector tube.

This invention gives greater efficiency rather than the conventional systems, but also this advancement is not too much supported in a low- temperature environment also, we can consider the poor light absorption characteristics of the pure water (Bencic, et al., 2000).

The basic idea and understanding of this phenomenon to improve solar collecting performance for obtaining a high working-fluid temperature are discussed in this paper.

This paper aims to focus on compliance of workplace sexual harassment-related provisions under Indian companies and securities law, based on an empirical analysis of companies’ sexual harassment-related disclosures contained within their directors’ annual reports (ARs). Specifically, sections devoted to sexual harassment-related disclosures, inbuilt within directors’ ARs for the financial year 2019–2020 for a selected sample of companies listed under the National Stock Exchange, have been analysed.

To examine the nature of companies’ disclosures to demonstrate their compliance with statutory requirements under the POSH law, aligned with the Companies (Accounts) Rules, 2014 and Securities and Exchange Board of India’s regulations, an empirical-based, descriptive content analysis of ARs of 200 listed companies were used.

This study primarily finds that the majority of companies from the sample have disclosed to have prepared a corporate-level policy, as required under the POSH law. As also required under the POSH law, companies, reportedly, have constituted an Internal Complaints Committee to adjudicate and dispose of incidents related to sexual misconduct reported at their workplaces. However, companies lack in disclosing qualitative information, with sufficient detail, on many important aspects related to prevention and resolution of reported cases of workplace sexual harassment.

This paper adds to the broader narrative of the lacunae within the disclosure and reporting requirements on enhancing the liabilities of the companies to prevent and address sexual harassment under India’s corporate and securities regulations.

Providing public healthcare to people is a major challenge for governments. In this sector, public-funded systems are grossly inadequate in India, and excessive commercialization and exploitation by the private sector are a stark reality. The cooperative healthcare model is emerging as an alternate system in Kerala with its strong service objective to challenge the woes of private healthcare. The cooperative hospitals in the state worked round the clock to serve the poor and needy during the devastating COVID-19 pandemic. The pandemic has also badly exposed the weakness of our healthcare system in the wake of challenges posed by an increase in demand for health services, especially in rural areas. The resultant rise in the cost of treatment has put severe strains on the people at a time when even their day to day jobs were in peril. India has a strong cooperative movement and world-class institutions to serve as models in each sector. The Thrikkakara Municipal Co-operative Hospital, located at Cochin in the Kerala State of India on which this case study is written was established by the Hospital Society Ltd. in 1999, as a project under the People’s Planning Programme of the Government. Today, it has grown into a medium-sized healthcare establishment with the prime objective ‘Modern healthcare to all at affordable costs’ and cater to an average of 700 outpatients a day. This case study reveals the inception, development over years, facilities available, operations, management, public interface, and outlook for the hospital to become a modern healthcare institution to serve the people still better.

Sustainability issues on economic, environmental and social perspectives have drawn attention of environmentalists, ecologists and governments. In this context, circular economy provides an opportunity to transform waste into resources, reduction of production and consumption activities; and reduction of carbon footprints, all at the same time. The purpose of this paper is to develop a strategic framework for measuring circular supply chain management.

A grounded theory approach has been used to develop the strategic framework for circular supply chain management.

This study provides an integrative framework for studying, designing and evaluating circular supply chain management performance matrix.

A conceptual strategic framework has been proposed to measure the performance of circular supply chain management. Further empirical studies may be carried out to validate the framework.

The conceptual strategic framework provides key indicators for reducing material consumption, reducing waste, reducing carbon footprint and recycling opportunities throughout the supply chain. These may be utilized by practitioners for gaining competitive advantage.

This paper provides insights into development of circular supply chains that provides opportunities for cost reduction and securing competitive advantage for a business in the long run.

The purpose of this paper is to examine the value of decolonial approaches (DAs) such as epistemic locus (Mignolo, 1995, 2000) in studying innovation.

This paper is based on a case study of a stem cell surgical innovation developed in India. A critical hermeneutic analysis method has been followed for data analysis.

Epistemic locus influences the framing of the problem, perceptions of risks/opportunities as well as the envisioning of alternate institutional systems. Persistent and strategic effort at building connections changes local improvisation into a globally legitimate innovation.

It indicates the value of using DAs for innovation studies especially epistemic locus, enactment and connections in understanding knowledge generation and innovation.

Innovation in Global South can be encouraged by giving more space to the innovator to attempt or experiment. More conscious conversation of epistemic locus of the researcher could help.

Countries have to move beyond a mere technological imitation to include discussions on epistemic imitation. Epistemic imitation prevents one from seeing what one has and one only looks at conditions from the eyes of the dominator.

This study documents the development of an innovation from an Indian epistemic locus which differs from a western epistemic locus and the impact this has on an innovation.

The case study is based on a social entrepreneurial journey where the authors have used an interview method to get the insights from the protagonists and the employees. Rigorous interviews were conducted online and in person for deep analysis of the protagonist’s strategies and decisive dilemma.

Secondary data was collected from company’s website for facts and figures.

This case study is a story of indigenous tribes of Odisha from the eyes of a woman who, with her co-founder, empathized with their vulnerable life and took on the challenge of creating sustainable livelihoods by establishing Millet Magic Foundation. The Millet Magic Foundation was established in 2021 by Shyama and her cofounder to uplift the indigenous tribe of Mayurbhanj by providing them livelihood through millet-based products. The foundation launched their millet-based snack products with the brand name WOWMOM. Millet Magic Foundation created social impact for the tribals by providing them with employment, fair wages, health care and social well-being. The specialty of the Millet Magic was reverse positioning and focusing on the bottom of the pyramid. The success of the Millet Magic Foundation relied on its mission to uplift the life of these indigenous tribal, especially the women, by overcoming the challenges with the strategies to establish Millet Magic as a social enterprise.

The case study is primarily suitable for postgraduate programme to teach the concept of social entrepreneurship in the entrepreneurship module. The case study can also be used for highlighting the role of social enterprise in sustainable economic development of emerging economies.

The present paper aims to propose a basic current mirror-sensing circuit as an alternative to the traditional Wheatstone bridge circuit for the design and development of high-sensitivity complementary metal oxide semiconductor (CMOS)–microelectromechanical systems (MEMS)-integrated pressure sensors.

This paper investigates a novel current mirror-sensing-based CMOS–MEMS-integrated pressure-sensing structure based on the piezoresistive effect in metal oxide field effect transistor (MOSFET). A resistive loaded n-channel MOSFET-based current mirror pressure-sensing circuitry has been designed using 5-μm CMOS technology. The pressure-sensing structure consists of three identical 10-μm-long and 50-μm-wide n-channel MOSFETs connected in current mirror configuration, with its input transistor as a reference MOSFET and output transistors are the pressure-sensing MOSFETs embedded at the centre and near the fixed edge of a silicon diaphragm measuring 100 × 100 × 2.5 μm. This arrangement of MOSFETs enables the sensor to sense tensile and compressive stresses, developed in the diaphragm under externally applied pressure, with respect to the input reference transistor of the mirror circuit. An analytical model describing the complete behaviour of the integrated pressure sensor has been described. The simulation results of the pressure sensor show high pressure sensitivity and a good agreement with the theoretical model has been observed. A five mask level process flow for the fabrication of the current mirror-sensing-based pressure sensor has also been described. An n-channel MOSFET with aluminium gate was fabricated to verify the fabrication process and obtain its electrical characteristics using process and device simulation software. In addition, an aluminium gate metal-oxide semiconductor (MOS) capacitor was fabricated on a two-inch p-type silicon wafer and its CV characteristic curve was also measured experimentally. Finally, the paper presents a comparative study between the current mirror pressure-sensing circuit with the traditional Wheatstone bridge.

The simulated sensitivities of the pressure-sensing MOSFETs of the current mirror-integrated pressure sensor have been found to be approximately 375 and 410 mV/MPa with respect to the reference transistor, and approximately 785 mV/MPa with respect to each other. The highest pressure sensitivities of a quarter, half and full Wheatstone bridge circuits were found to be approximately 183, 366 and 738 mV/MPa, respectively. These results clearly show that the current mirror pressure-sensing circuit is comparable and better than the traditional Wheatstone bridge circuits.

The concept of using a basic current mirror circuit for sensing tensile and compressive stresses developed in micro-mechanical structures is new, fully compatible to standard CMOS processes and has a promising application in the development of miniaturized integrated micro-sensors and sensor arrays for automobile, medical and industrial applications.