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1 – 10 of 102Mahendra Saha, Pratibha Pareek, Harsh Tripathi and Anju Devi
First is to develop the time truncated median control chart for the Rayleigh distribution (RD) and generalized RD (GRD), respectively. Second is to evaluate the performance of…
Abstract
Purpose
First is to develop the time truncated median control chart for the Rayleigh distribution (RD) and generalized RD (GRD), respectively. Second is to evaluate the performance of the proposed attribute control chart which depends on the average run length (ARL) and third is to include real life examples for application purpose of the proposed attribute control chart.
Design/methodology/approach
(1) Select a random sample of size n from each subgroup from the production process and put them on a test for specified time t, where t = ? × µe. Then, count the numbers of failed items in each subgroup up to time t. (2) Step 2: Using np chart, define D = np, the number of failures, which also a random variable follows the Binomial distribution. It is better to use D = np chart rather than p chart because the authors are using number of failure rather than proportion of failure p. When the process is in control, then the parameters of the binomial distribution are n and p0, respectively. (3) Step 3: The process is said to be in control if LCL = D = UCL; otherwise, the process is said to be out of control. Hence, LCL and UCL for the proposed control chart.
Findings
From the findings, it is concluded that the GRD has smaller ARL values than the RD for specified values of parameters, which indicate that GRD performing well for out of control signal as compared to the RD.
Research limitations/implications
This developed control chart is applicable when real life situation coincide with RD and GRD.
Social implications
Researcher can directly use presented study and save consumers from accepting bad lot and also encourage producers to make good quality products so that society can take benefit from their products.
Originality/value
This article dealt with time truncated attribute median control chart for non-normal distributions, namely, the RD and GRD, respectively. The structure of the proposed control chart is developed based on median lifetime of the RD and GRD, respectively.
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Zeinab Hosseini, Mohammad Taghi Ghaneian, Mahin Ghafourzade and Abbasali Jafari Nodoushan
This paper aims to evaluate the bioremediation [chemical oxygen demand (COD) and color removal] of the effluent from the cardboard recycling industry in Yazd, central province of…
Abstract
Purpose
This paper aims to evaluate the bioremediation [chemical oxygen demand (COD) and color removal] of the effluent from the cardboard recycling industry in Yazd, central province of Iran, using mixed fungal culture.
Design/methodology/approach
First, the effluent samples from the cardboard recycling industry were cultured on potato dextrose agar medium to isolate native fungal colonies. The grown colonies were then identified using morphological macroscopic and microscopic characteristics to choose the dominant fungi for bioremediations. The mixed cultures of Aspergillus niger, Aspergillus flavus and Penicillium digitatum were finally used for bioremediation experiments of the cardboard recycling industry. A suspension containing 1 × 106 CFU/ml of fungal spores was prepared from each fungus, separately and their homogenous mixture. Sewage samples were prepared and sterilized and used at 25%, 50% and 90% dilutions and pH levels of 5, 7 and 8 for bioremediation tests using mixed fungal spores. Following that, 10 ml of the mixed fungal spores were inoculated into the samples for decolorization and COD removal and incubated for 10 days at 30°C. The amount of COD removal and decolorization were measured before incubation and after 3, 6 and 10 days of inoculation. In this research, the color was measured by American Dye Manufacturer Institute and COD by the closed reflux method. The results of the present study were analyzed using SPSS 21 statistical software and one-way ANOVA tests at p-value < 0.05.
Findings
The results of this research showed that the mean decolorization by mixed fungal culture over 10 days at pH levels of 5, 7 and 8 were 44.40%, 45.00% and 36.84%, respectively, and the mean COD removal efficiency was 71.59%, 73.54% and 16.55%, respectively. Moreover, the mean decolorization at dilutions of 25%, 50% and 90% were 45.00%, 31.93% and 30.53%, respectively, and the mean COD removal efficiency was 73.54%, 62.38% and 34.93%, respectively. Therefore, the maximal COD removal and decolorization efficiency was obtained at dilution of 25% and pH 7.
Originality/value
Given that limited studies have been conducted on bioremediation of the effluent from the cardboard recycling industry using fungal species, this research could provide useful information on the physicochemical properties of the effluent in this industry.
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Mohammad Rishad Faridi and Saloni Sinha
Appendix 1: Comic Frames A At the end of the case study discussion, students will able to as follows: Explain various growth strategies as a potential unicorn with the exponential…
Abstract
Learning outcomes
Appendix 1: Comic Frames A At the end of the case study discussion, students will able to as follows: Explain various growth strategies as a potential unicorn with the exponential growth mindset rather than linear growth mindset through adaptation of Massive Transformative Purpose (MTP) and Moonshot Thinking (MT). Demonstrate innovative and creative plans and ideas, with the ability to scale up in the circular economy. Review and summarize the power of Collaborative Innovation (CI). Compare and contrast different ways in dealing with Hedgehog and Fox style of leadership into the business. Appendix 2: Comic Frames B At the end of the case study discussion, students will able to as follows: Act with a growth strategy as a potential unicorn with the exponential growth mindset rather than linear growth mindset through adaptation of MTP and MT. Simulate innovative and creative plans and ideas, with the ability to scale up in the circular economy. Assess and leverage the power of CI. Decide and differentiate in dealing with Hedgehog and Fox style of leadership into the business.
Case overview/synopsis
Ankit Tripathi, was a compassionate 22-year-old, the typical lad from New Delhi, India, who seemed driven to change the world. His elder brother Atul Tripathi, a young, creative 25-year-old, was sat there next to him, beaming with pride and gratitude. Both brothers, being mechanical engineering graduates, had experienced the advancement of technology at the cost of Mother Earth. It pained them no end. It was the reason that Atul had refused to serve as an engineer in a government institution after graduating. The parents were shocked when Ankit followed suit. The brothers were poles apart in their personality and temperament, and it was rare to see them agree on anything in this way. Yet, they agreed to disagree with their parents and ventured into becoming entrepreneurs with a purpose and passion to salvage the environment. They had a vision, but without a proper roadmap, it would certainly be a tough game. Nevertheless, they boldly embarked upon their journey and established their start-up “Uneako” in 2019. “Uneako” was a calculated risk, taking into account family resistance (parents’ attitude/perception), personal conflicts (psychological), financial limitations (resources), shallow expertise (professionalism), social concern acceptability and low awareness (environment), government regulations (legalities/approvals), conflicts between brothers (personality issues), etc. Being from a nonbusiness family, the brothers had defied the wave of obstacles and challenges in daring to start their own business, putting at stake the hard-earned money of their father, Satendra Tripathi. Amidst so much social mockery, would Atul and Ankit succumb and become a laughing stock or would they find something that they could live and die for?
Complexity Academic Level
Appendix 1: Comic Frames A: This case has been particularly focused on undergraduate level students pursuing business or commerce programs. Especially those studying core courses, for example, entrepreneurial and strategic management. Appendix 2: Comic Frames B: This case has been particularly focused postgraduate-early stage or higher level students pursuing business or commerce programs. Particularly those specializing in entrepreneurial and strategic management courses. Also, can be taught in the entrepreneurial or start-up workshops.
Supplementary materials
www.pewresearch.org/topics/generation-z/ Paulynice. J.P., (2019) “From Idea to Reality: An Entrepreneur’s Guide to Meaningful Business Growth” Paulynice Consulting Group. Hardy.D., (2015) “The Entrepreneur Roller Coaster: It’s Your Turn to Join The Ride” Success Publishers. Wadhwa.V., Amla.I., Salkever.A., (2020) “From Incremental to Exponential” Berrett-Koehler Publishers. Sustainable Entrepreneurship: Business Success through Sustainability edited by Christina Weidinger, Franz Fischler, René Schmidpeter, Springer 2014. Teaching notes are available for educators only.
Subject code
CSS 3: Entrepreneurship.
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Alexei Koveshnikov and Miikka J. Lehtonen
We draw upon stress theory and utilize the context of the COVID-19 pandemic to investigate how various coping strategies employed by expatriates affect their psychological stress…
Abstract
Purpose
We draw upon stress theory and utilize the context of the COVID-19 pandemic to investigate how various coping strategies employed by expatriates affect their psychological stress, subsequently influencing their expatriation satisfaction and intention to withdraw from the host country.
Design/methodology/approach
We utilize structural equation modeling to analyze a sample of 453 expatriates residing and working in the United Arab Emirates during the COVID-19 pandemic.
Findings
Our analysis shows that the effects of different coping strategies on expatriates vary. Depending on the nature of the strategy, they can have either positive or negative effects. While coping via problem-focused and denial strategies decreases expatriates' stress, coping by distancing increases it. Social support-seeking is not found to be an effective stress-coping strategy. In terms of implications, the problem-focused strategy leads to the most positive outcomes, whereas distancing leads to the most negative outcomes.
Originality/value
Our study provides significant theoretical and practical insights into expatriates' coping mechanisms within the context of natural crises.
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Md Sajjad Hosain and Umma Jakia
As Covid-19 became a pandemic, numerous people were forced to stay at home, leading to increased intimate partner violence (IPV) in many countries, particularly in developing and…
Abstract
Purpose
As Covid-19 became a pandemic, numerous people were forced to stay at home, leading to increased intimate partner violence (IPV) in many countries, particularly in developing and least-developed ones. This paper aims to highlight the IPV based on 15 different cases formed from the practical evidence of five developing countries.
Design/methodology/approach
The authors interviewed 15 women from five countries who were the victims of IPV during the early periods of Covid-19 outbreak. Due to geographical remoteness, the authors conducted informal telephone interviews to collect the participants' personal experiences. The conversations were recorded with participants' permission; afterwards, the authors summarized participants’ experiences into 15 different cases without revealing their original identities (instead, disguised names were used).
Findings
It was revealed that the women were the primary victims of such violence, particularly from their intimate partners (husbands). In most cases, such IPV, as reported by the interviewees, originated or increased after the pandemic when they were forced to stay at home, losing their partners’ jobs or income sources.
Originality/value
The authors summarized the causes of IPV and put forward a few action recommendations based on the interviewees’ practical experience and existing literature. This paper will open a new window for research investigations on IPV during emergencies such as Covid-19 outbreak.
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Priyanka Tripathi, Prabha S. Dwivedi and Shreya Sharma
The COVID-19 outbreak has significant psychological effects because of reduced support system and social quarantine, making women the worst-hit population of shadow pandemic, i.e…
Abstract
Purpose
The COVID-19 outbreak has significant psychological effects because of reduced support system and social quarantine, making women the worst-hit population of shadow pandemic, i.e. domestic violence. While food shortages, unemployment and increased domestic-work burdens are the immediate effects of the lockdown, women at home have to bear its far-reaching impacts in the long term in the form of domestic abuse, making the study of the psychological impact of domestic violence against women imperative. This paper aims to identify the factors and causes responsible for domestic violence and its psychological impacts on women in different aspects. This paper further focuses on the reasons behind an escalation in psychological violence against women.
Design/methodology/approach
This paper is based on extrapolating data from various journal articles, Indian Government reports, newspaper articles and other printed materials that are recent, relevant and discuss domestic violence and mental stress during the COVID-19 pandemic. Researchers use Indian National Commission for Women’s (NCW) data on complaints received regarding violence against women and domestic abuse in the year 2020 and 15 journal articles that discuss domestic violence against women during the COVID-19 period in different countries to discuss social inequalities and power relations impact on women’ mental health.
Findings
The findings suggest that economic instability during the pandemic and social and cultural norms of India ignited psychological abuse against women during the pandemic. The number of monthly complaints of dowry death, dowry harassment and protection of women against domestic violence reflect on increased registered complaints in the postlockdown period in the year 2020. The number of monthly complaints received by the NCW from January 2020 to December 2020 in India represents that WhatsApp chat is a powerful tool for reporting domestic violence.
Originality/value
The pandemic lockdown has an adverse psychological impact on women, making them suffer from posttraumatic symptoms, substance abuse, panic attacks, depressions, hallucinations, eating disorders, self-harm, etc. This paper strives to reflect upon mitigation strategies to curb domestic violence in India.
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Sabyasachi Tripathi and Jyoti Chandiramani
Although various studies have shed light on why cities are a primary source of environmental pollution and how it affects climate change, the effects of city-level environmental…
Abstract
Although various studies have shed light on why cities are a primary source of environmental pollution and how it affects climate change, the effects of city-level environmental deterioration on company ownership have yet to be investigated. In this context, our main objective is to investigate environmental pollution's impact on the ownership of informal enterprises in Indian metro cities (1 million or more population). This study considers micro (entrepreneurship-level) and macro (city-level) factors for the analysis by using mainly National Sample Survey unit-level data on ‘Unincorporated Non-Agricultural Enterprises’ in 2015–2016. Micro-level factors include access to toilet facilities, provision for solid waste management, provision for liquid waste management, etc. On the other hand, macro-level factors are the total number of registered motor vehicles (two-wheelers, cars, jeeps, tractors, omnibuses, trucks, taxis, buses, passenger autos and light motor vehicles) and air pollution (e.g. sulphur dioxide, nitrogen dioxide and particular matter emissions). The study explored the impact of environmental pollution on the differences in gender business ownership. According to the findings, both male- and female-owned proprietorships suffer from environmental degradation. Environmental contamination, however, puts female-owned businesses at greater risk than their male counterparts. Because of this, it is crucial to lessen environmental pollution by lowering air pollution and providing improved toilets, water and solid and liquid waste management systems. By reducing poverty and inequality, advancing a society that values equality between the sexes is necessary. Finally, we propose important policies to enable the city environment to improve entrepreneurship activities for sustainable economic development.
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Emmanuel Dele Omopariola, Abimbola Olukemi Windapo, David J. Edwards and Nicholas Chileshe
Construction companies require meticulous and thorough financial planning to ensure business survival in an increasingly competitive global market. Past studies assert that cash…
Abstract
Purpose
Construction companies require meticulous and thorough financial planning to ensure business survival in an increasingly competitive global market. Past studies assert that cash flow management is also crucial to meeting project and organisational performance expectations. However, the link between an advance payment system (APS), cash flow and project performance has hitherto received scant academic attention. Therefore, this study aims to investigate the attributes and impact of APS on cash flow, project and organisational performance. This study surveyed all registered contractors listed in Grades 1–9 on the Construction Industry Development Board Register of Contractors in South Africa.
Design/methodology/approach
This study adopted an empirical epistemological design and deductive reasoning to analyse primary data collated via a questionnaire data collection instrument. Summary statistical and regression analysis were used to explore data garnered.
Findings
This study found that key significant attributes of APS in South Africa were payment of balance to the contractor upon project delivery; advance payment to contractors before the commencement of the work; and payment to contractors as agreed. This study proffers that project performance in terms of cost, time and quality performance is highly and positively supported by APS. Moreover, APS positively supports the efficiency, competitiveness and profitability of construction organisations. Cumulatively, these findings confirm that APS attributes in South Africa conforms to the global attributes of APS. The research concludes that client use of APS on projects improves the likelihood of attaining improved quality and time performance. This paper concludes with a recommendation that both public and private clients consider the option of an APS as the ideal payment system to support project and organisational performance.
Originality/value
To the best of the authors’ knowledge, this work constitutes the first attempt to explore the linkages between an APS, cash flow and project performance in South Africa and seeks to engender wider polemic debate and further discussion among industry stakeholders.
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Stuti Haldar and Tulika Tripathi
India has acquired global leadership in renewable energy (RE) deployment because of its commitment to achieve 175 GW of installed capacity by 2022. Entrepreneurship driven by…
Abstract
Purpose
India has acquired global leadership in renewable energy (RE) deployment because of its commitment to achieve 175 GW of installed capacity by 2022. Entrepreneurship driven by innovation and policy push is essential for energy sector transition. Despite policy focus on the diffusion of RE technology, there are several challenges that plague innovation and RE entrepreneurship development in Gujarat, India. Hence, the purpose of this study is to apply an empirical approach to identify major challenges faced by RE entrepreneurs operating in Gujarat.
Design/methodology/approach
An empirical correlational analysis has been taken up to explore individual- and firm-level characteristics of 54 RE entrepreneurs in Gujarat across six districts. Moreover, challenges faced by them related to policy and market have been investigated. Gujarat has been selected as the study area, as it has an installed capacity of 11,000 MW and houses around 11% of the total RE potential of the country.
Findings
Major challenges faced by RE entrepreneurs in Gujarat comprise of financial risks, market incumbency, low profitability, uncertainty of demand and lack of skilled labour.
Practical implications
This study offers an empirical grounding to policymakers for fostering an ecosystem of entrepreneurship and innovation specific to RE sector in India and other developing nations.
Originality/value
This study is unique, as previous studies on sustainability-driven entrepreneurship are majorly theoretical and lack empirical foundations. Moreover, there are even lesser quantitative studies exploring challenges to RE entrepreneurship specific to India.
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Mohd Shoaib Ansari and Aditya Tripathi
This study aims to evaluate the information behavior of the Banarasi Sarees weaving community and propose an information-focused policy tailored to their needs.
Abstract
Purpose
This study aims to evaluate the information behavior of the Banarasi Sarees weaving community and propose an information-focused policy tailored to their needs.
Design/methodology/approach
This study was conducted in seven weaver-centered areas in Varanasi and was designed around semi-structured interviews to explore various information-related aspects among the weavers. It aims to focus on their knowledge of weaving, their information needs, seeking behavior, preferred communication channels, prioritization of information and methods for enhancing information-related situations.
Findings
It was found that a lack of information among weavers significantly impacts their livelihoods and businesses. They struggle to make product, pricing and marketing decisions without access to accurate, timely and relevant information. They cannot expand their businesses and invest in new equipment and materials. The weavers need a library with a specialized collection and a qualified librarian to guide them in using the information sources. They also need a dedicated information system and community information centers to provide better information services.
Originality/value
This study is a work whose expected results and findings would help policymakers adopt measures to encourage providing information services through public libraries and community information centers. The results of this study may be further used to frame information policy for weavers and other occupational communities.
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