J. Rajakumar, P. Saikrishnan and A. Chamkha
The purpose of this paper is to consider axisymmetric mixed convection flow of water over a sphere with variable viscosity and Prandtl number and an applied magnetic field.
Abstract
Purpose
The purpose of this paper is to consider axisymmetric mixed convection flow of water over a sphere with variable viscosity and Prandtl number and an applied magnetic field.
Design/methodology/approach
The non-similar solutions have been obtained from the origin of the streamwise co-ordinate to the point of zero skin friction using quasilinearization technique with an implicit finite-difference scheme.
Findings
The effect of M is not notable on the temperature and heat transfer coefficient when λ is large. The skin friction coefficient and velocity profile are enhance with the increase of MHD parameter M when λ is small. Viscous dissipation has no significant on the skin friction coefficient under MHD effect. For M=1, the movement of the slot or slot suction or slot injection do not cause any effect on flow separation. The slot suction and the movement of the slot in downstream direction delay the point of zero skin friction for M=0.
Originality/value
The present results are original and new for water boundary-layer flow over sphere in mixed convection flow with MHD effect and non-uniform mass transfer. So this study would be useful in analysing the skin friction and heat transfer coefficient on sphere of mixed convection flow of water boundary layer with MHD effect.
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Kelefa Mwantimwa and Nora Ndege
Farmers in rural areas are generally not well empowered with knowledge and innovations to solve their agricultural problems in spite of the growing presence of such knowledge…
Abstract
Purpose
Farmers in rural areas are generally not well empowered with knowledge and innovations to solve their agricultural problems in spite of the growing presence of such knowledge resulting from research and innovation activities across the globe. This study aims to document approaches, impact and impediments of using village knowledge centers (VKCs) to transfer agricultural knowledge and innovations.
Design/methodology/approach
To achieve the objective of the study, a case study research design was used to investigate the impact of a selected VKC as institutional innovation in agricultural technology outreach and extension in rural Tanzania. Primary data was collected through semi-structured interviews, focus group discussions and observation methods. Besides, secondary sources such as reports were used to complement primary data during fieldwork.
Findings
The study reveals that various approaches are used by the VKC to transfer knowledge and innovation to farmers. The use of the multi-actor platform (MAP) to run the VKC ensures inclusive knowledge production and sharing among different actors. The findings also suggest that knowledge and innovation co-creation is constructed with various knowledge systems actors to enhance the use of research generated. Accordingly, the findings show that the university efforts are an important catalyst for integrated knowledge, technology and innovation systems in rural settings.
Research limitations/implications
The present study reveals different limitations associated with the use of a single case study design. The single-case design provided researchers with little basis for generalisation of the study findings and conclusions. Aside from that, the use of a cross-sectional design did not help the researchers to validate the findings and conclusions. To address these limitations, the study recommends similar studies that will adopt different types of longitudinal design such as cohort and diary methods. Apart from this, a future study to investigate the tangible impact of VKC on knowledge and innovation transfer is recommended.
Originality/value
Considering the novelty of the MAP approach in Tanzania and the dearth of studies reporting on how the village knowledge center works and how effective it is, the present study provides insights on the approaches, impact and impediments.
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Since the announcement of the new series of national accounts for India (with base 2011-12) in January 2015, there has been endless controversy over the new gross domestic product…
Abstract
Purpose
Since the announcement of the new series of national accounts for India (with base 2011-12) in January 2015, there has been endless controversy over the new gross domestic product (GDP) growth numbers, particularly in respect of growth of Indian manufacturing. The purpose of this paper is to highlight certain policy issues concerning India’s system of national accounts, in the context of the methodological changes made in the new national accounts series, and to check the validity of the view held by some critics that the new series has significantly overstated the growth rate in real gross value added in manufacturing in recent years.
Design/methodology/approach
The paper presents a brief, selective review of the literature that has emerged on the new series of national accounts. A close look is taken at the available data on real gross value added growth in Indian manufacturing in conjunction with data on growth in India’s exports and in outstanding non-food commercial bank credit. Analysis of these data is undertaken with the help of a table and some graphs.
Findings
The paper finds that there is not enough basis to believe and argue that the GDP estimates in the new series of national accounts significantly overstate the true manufacturing sector growth in India.
Originality/value
Rates of manufacturing output growth in recent years indicated by the new series of national accounts for India are subjected to careful scrutiny by contrasting yearly growth rates in manufacturing output with those in India’s non-oil exports and in outstanding non-food commercial bank credit.
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Over one and half years have passed since the demonetization of Indian economy had occurred on November 8, 2016. The drastic step was initiated by the Prime Minister Narendra Modi…
Abstract
Purpose
Over one and half years have passed since the demonetization of Indian economy had occurred on November 8, 2016. The drastic step was initiated by the Prime Minister Narendra Modi with an intention to curb the “huge” circulation of illicit or “black” money of Indian economy by means of withdrawal of high value denominations of Rupees 500 and Rupees 1,000 from the supply of broad money (M3). This step helped to demonetize around 86 per cent value of total money supply leading to an unprecedented chaos in the economy and public life. The long delays in issuing fresh currency notes at the banks and ATMs further deteriorated the sudden economic crisis.
Design/methodology/approach
This research paper is aimed at exploring the proclaimed “efficacy” of demonetization policy as proposed by Reserve Bank of India by means of a mathematical approach and critically examines the effects of demonetization on the illicit money supply of Indian economy on the basis of macroeconomic theory.
Findings
From the mathematical model and related estimates, it may be easily deduced that the Indian policymakers deliberately hurled the masses in one of the gravest economic crises with a clear-cut intention of creating a political gimmick, when in reality, the proportion of illegitimate money supply was not even 1 per cent of total legitimate supply of money.
Originality/value
The analyses and findings related to this paper are based on mathematical modeling and logical interpretations. This paper is free of plagiarism as all the necessary sources and references are properly cited.
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Sanjukta Choudhury Kaul and Nandini Ghosh
This paper aims to trace Tata Group’s role in responding to disability in the decades immediately following India’s independence until the preliberalization period of the Indian…
Abstract
Purpose
This paper aims to trace Tata Group’s role in responding to disability in the decades immediately following India’s independence until the preliberalization period of the Indian economy, i.e. from the 1950s to the 1990s.
Design/methodology/approach
This study’s methodology entailed a historiographical approach and archival engagement at Tata Archives (Pune, India) of the company documents. Materials and records of the Tata Company between 1942 and 1992.
Findings
Adopting the corporate culture lens, the study findings show that Tata Group demonstrated an active prosocial corporate approach toward disability. In a period governed by the ideology of a state-dominated developmental approach, Tata Group’s initiatives were related to medical interventions for a wide spectrum of disabilities, rehabilitation and efforts to ensure persons with disabilities (PWDS)’ livelihood.
Originality/value
Disability, in the neoliberalized economic landscape of India, is an emergent business issue for companies espousing workplace diversity. The historical understanding of business engagement with disability from postindependence to liberalization in India remains, however, limited. In postindependence India, the passive business response to disability emerged within an ethical and discretionary framework, with charity and philanthropy as the main modes of engagement. In this background, this paper explores Tata’s response to disability and PWDs, which was distinct.
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D. Papandreou, Z. Karabouta and I. Rousso
This paper aims to review the metabolism, epidemiology and treatment of vitamin D and calcium insufficiency as well as its relation to rickets and diabetes type 1 during childhood…
Abstract
Purpose
This paper aims to review the metabolism, epidemiology and treatment of vitamin D and calcium insufficiency as well as its relation to rickets and diabetes type 1 during childhood and adolescence.
Design/methodology/approach
The most up‐to‐date and pertinent studies within the literature are included in this narrative review.
Findings
Vitamin D deficiency is common in developing countries and exists in both childhood and adult life. The great importance of vitamin D is the moderation of calcium (Ca) and phosphorus (P) homeostasis as well as the absorption of Ca. While insufficiency of vitamin D is a significant contributing factor to the risk of rickets in childhood, it is possible that a more marginal deficiency of vitamin D during life span contributes to osteoporosis as well as potentially to the development of various other chronic diseases such as diabetes type 1.
Originality/value
This paper gives a concise, up‐to‐date overview to nutritionists and dietitians on how vitamin D deficiency may effect rickets and type 1 diabetes.
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Since World War II, rates of type 2 diabetes (henceforth diabetes) have skyrocketed, leading to talk of an “epidemic,” believed to result from formerly “adaptive” genotypes…
Abstract
Since World War II, rates of type 2 diabetes (henceforth diabetes) have skyrocketed, leading to talk of an “epidemic,” believed to result from formerly “adaptive” genotypes colliding with “affluent” postindustrial societies – largely their food excesses and physically undemanding jobs. Hence, experts describe diabetes as a struggle between biology and behaviors – “genes-as-destiny” and “lifestyles-as-choice” – said to have spared no social group. However, racial and ethnic minorities and the poor are affected disproportionately.
In this paper I challenge the “genes–lifestyle” framework and argue that the epidemic, particularly its distribution, is produced not by affluence but by poverty. The cumulative effect of malnutrition or hyperglycemia during pregnancy, of stunting in young children, of structural constraints over healthy lifestyles, and of the lack of a right to adequate medical care, which are all the results of poverty, leads to diabetes and its complications, and to disparities in their distribution among social groups. Hence, diabetes disparities are not mere differences but differences that are avoidable, unnecessary, and unjust. I also highlight selected conceptual problems of the genes–lifestyle framework that mislead about the potential contributions of genetics to human health.
I conclude that because the roots of the diabetes epidemic lie in inequities in social power, the solutions required are not medical but political, and ought to concern a sociologically informed bioethics. I also conclude that insofar as dominant accounts of the diabetes epidemic ignore or downplay these roots, they will legitimize research and policies that reproduce or even increase diabetes disparities. The paper is part of a larger project on the political ecology of diabetes.
Savita Gupta, Ravi Kiran and Rakesh Kumar Sharma
In keeping with global developments rendering online shopping as an emerging trend among consumers, the present study extends the unified theory of use and acceptance of…
Abstract
Purpose
In keeping with global developments rendering online shopping as an emerging trend among consumers, the present study extends the unified theory of use and acceptance of technology (UTAUT2) comprising the digital payment mode (DPM) as a new driver of online shopping and with the mediation of attitudes toward technology (ATTs) to gauge a better and deeper understanding of behavioral intention (BI).
Design/methodology/approach
This study used a survey instrument with snowball sampling from 600 consumers in northern India. Partial least squares structural equation modeling was used to find the association between drivers using UTUAT2, along with DPM and ATTs. The data were divided into a test group (20%) and validated through a training group (80%).
Findings
DPM was shown to be directly associated with BI. The mediation of ATTs was also validated through the model. The predictability of the model was 67.5% for the test group (20%) and 69.6% for the training group (80%). The results also indicated that facilitating conditions is a critical driver of BI.
Originality/value
This study enhances the understanding of the roles that DPM and ATTs play in BI during online shopping, suggesting that Indian managers need to adopt DPM as a support service to make online shopping a worthwhile experience.
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Deepa Jain, Manoj Kumar Dash and Keshav Singh Thakur
The purpose of present study is to identify influential aspects of published literature, research streams and future research questions to set forth future research agenda based…
Abstract
Purpose
The purpose of present study is to identify influential aspects of published literature, research streams and future research questions to set forth future research agenda based on comprehensive literature review using bibliometric and content analysis.
Design/methodology/approach
The study analyzed 285 documents from the international Scopus database using bibliometric analysis and content analysis. VOSviewer software is used for bibliometric analysis.
Findings
The study identified influential aspects of published literature; identified five significant research streams: (1) Demonetization and financial system, (2) Demonetization and financial technology, (3) Demonetization and financial market, (4) Demonetization and digital payment system and (5) Demonetization and governance and proposed 27 key future research questions to develop future research agenda.
Practical implications
The present study makes significant contribution to the literature by providing a framework for future research. The framework provides opportunities to future researchers to explore the web of relations among five identified research streams as future research agenda.
Originality/value
The present work is unique in its way of contribution, as to the best of researchers' knowledge no work was witnessed in published literature to cover demonetization in a detailed and comprehensive manner. The present study fills this gap by conducting bibliometric analysis and content analysis. The study proposed conceptual framework for demonetization characterization to understand the demonetization literature well; and also proposed framework for future researcher to be explored further.