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Article
Publication date: 28 October 2014

V. Rajasekharan and P. Manisankar

The purpose of this study is to introduce mechanochemically prepared polyaniline anticorrosive additives. In primer coating technology, there is an increasing interest in…

Abstract

Purpose

The purpose of this study is to introduce mechanochemically prepared polyaniline anticorrosive additives. In primer coating technology, there is an increasing interest in the development of efficient anticorrosive additives which replace the conventional inorganic anticorrosive pigments like heavy metal chromates and phosphates normally added to primer paints for the coating on metals. Conducting polymers are found to be better alternatives.

Design/methodology/approach

Polyaniline phosphate is synthesized through solid-state conditions without using any solvent. The synthesized polyaniline phosphate is added in the primer formulation instead of zinc phosphate. Primers with different quantity of zinc phosphate are also formulated and studied for comparison. The comparison between their abilities to control corrosion of carbon steel were done with application of open-circuit potential monitoring, polarization and electrochemical impedance spectroscopy methods in 3.5 per cent NaCl solution.

Findings

Corrosion studies indicate that polyaniline phosphate can improve corrosion protection properties by taking part the passivation processes. The performance of polyaniline phosphate is better than zinc phosphate.

Originality/value

I certify that the results are from our original research and this paper is neither considered for publication elsewhere nor published previously.

Details

Anti-Corrosion Methods and Materials, vol. 61 no. 6
Type: Research Article
ISSN: 0003-5599

Keywords

Article
Publication date: 1 September 2020

Hasirumane Venkatesh Mukesh, Nandana Prabhu, Navin Kumar Koodamara, Suman Chakraborty and Pallavi Kamath

The central purpose of this study is to investigate the relative effects of leadership styles, i.e. transactional leadership and transformational leadership, and…

Abstract

Purpose

The central purpose of this study is to investigate the relative effects of leadership styles, i.e. transactional leadership and transformational leadership, and achievement motivation on the entrepreneurial potential of MBA and engineering students. This study also examines whether the MBA and engineering students differ in terms of their entrepreneurial potential.

Design/methodology/approach

This study has used a cross-sectional research design along with a quasi-experimental research method to investigate the study's objectives on a sample consisting of 952 engineering and business students. The study has also used the PLS-SEM approach to carry out the data analysis, and to evaluate the group differences among MBA and engineering students concerning the relationships investigated, i.e. leadership motivation-entrepreneurial potential, and achievement motivation-entrepreneurial potential.

Findings

This research has primarily made four findings. First, the study has found that there are statistically significant differences between students pursuing a business education, and those students who are seeking management education about their entrepreneurial potential. Second, this study demonstrates that leadership and achievement motivation are strongly associated with entrepreneurial potential. Third, this research shows that the achievement motivation-entrepreneurial potential is more substantial among engineering students than among business students. However, the leadership-entrepreneurial potential relationship is more influential among MBA students than among engineering students. Lastly, the effect size of leadership is small in comparison with the effect size of achievement motivation, which is substantially healthy.

Originality/value

This research has attempted to address the riddle of a leadership attribution error in the context of entrepreneurship. Accordingly, this study has demonstrated that the idea of leadership attribution error has empirical evidence in the context of entrepreneurship also. Further, this study has tried to address the “behavior-motive preeminence” dichotomy. The results of this research show that internal motivation is more reliable than external leadership behavior in cultivating the entrepreneurial potential of students.

Details

Journal of Applied Research in Higher Education, vol. 13 no. 3
Type: Research Article
ISSN: 2050-7003

Keywords

Article
Publication date: 4 July 2016

Lihong Gao, Jiang Chen, Jun Zheng and Haiyan Zhang

The purpose of the study reported in this paper is to synthesis curcumin, which was reported to possess broad pharmacological effects and excellent dyeing properties, via…

Abstract

Purpose

The purpose of the study reported in this paper is to synthesis curcumin, which was reported to possess broad pharmacological effects and excellent dyeing properties, via Claisen-Schmidt condensation reaction catalysed by an efficient and green solid base catalyst, KF/Al2O3.

Design/methodology/approach

A series of catalysts with different KF loadings and varying calcination temperatures had been prepared, characterised by Brunauer–Emmett–Taller surface area, temperature-programmed desorption with CO2 using infrared spectroscopy, X-ray powder diffraction and X-ray photoelectron spectroscopy, and tested in the Claisen–Schmidt condensation reaction. The effects of different reaction parameters such as temperature, the amount of catalyst, reactant ratio and time on the synthesis of curcumin were examined. The possibility of recycling the catalyst was also investigated in detail. Moreover, the reaction mechanism and the role of KF/Al2O3 in the synthetic process were discussed.

Findings

The study provides an efficient and green solid base catalyst, KF/Al2O3, and 64.3 per cent yield of curcumin was obtained under the optimum reaction conditions. Experimental results indicate that the third reused catalyst could retain part of the catalytic activity, and the regenerated one could be reused with reasonable catalytic activity. Besides, K3AlF6 was proposed as the active site of the catalyst for the reaction by the analysis of the characterization results of KF/Al2O3.

Originality/value

KF/Al2O3 was found to be an efficient catalyst for catalytic synthesis of curcumin and could be easily recycled several times. This information may be useful for further research and practical applications of curcumin.

Details

Pigment & Resin Technology, vol. 45 no. 4
Type: Research Article
ISSN: 0369-9420

Keywords

Open Access
Article
Publication date: 11 March 2019

Adelaide Lusambili, Joyline Jepkosgei, Jacinta Nzinga and Mike English

The purpose of this paper is to provide a situational overview of the facility-based maternal and perinatal morbidity and mortality audits (MPMMAs) in SSA, their current…

2576

Abstract

Purpose

The purpose of this paper is to provide a situational overview of the facility-based maternal and perinatal morbidity and mortality audits (MPMMAs) in SSA, their current efficacy at reducing mortality and morbidity rates related to childbirth.

Design/methodology/approach

This is a scoping literature review based on the synthesis of secondary literature.

Findings

Not all countries in SSA conduct MPMMAs. Countries where MPMMAs are conducted have not instituted standard practice, MPMMAs are not done on a national scale, and there is no clear best practice for MPMMAs. In addition, auditing process of pediatrics and maternal deaths is flawed by human and organizational barriers. Thus, the aggregated data collected from MPMMAs are not adequate enough to identify and correct systemic flaws in SSA childbirth-related health care.

Research limitations/implications

There are a few published literature on the topic in sub-Saharan Africa.

Practical implications

This review exposes serious gaps in literature and practice. It provides a platform upon which practitioners and policy makers must begin to discuss ways of embedding mortality audits in SSA in their health systems as well as health strategies.

Social implications

The findings of this paper can inform policy in sub-Saharan Africa that could lead toward better outcomes in health and well-being.

Originality/value

The paper is original.

Details

International Journal of Human Rights in Healthcare, vol. 12 no. 3
Type: Research Article
ISSN: 2056-4902

Keywords

Article
Publication date: 26 January 2010

Montasser S. Tahat

The purpose of this paper is to investigate the effect of SiC addition up to 60 percent SiC on the mechanical properties and thermal expansion of Al‐7vol.% Si/SiC composites.

Abstract

Purpose

The purpose of this paper is to investigate the effect of SiC addition up to 60 percent SiC on the mechanical properties and thermal expansion of Al‐7vol.% Si/SiC composites.

Design/methodology/approach

Composite specimens containing 7, 15, 30, 45 and 60 vol.% SiCp are fabricated by pressureless infiltration technique. The obtained metal‐matrix composites (MMCs) then are characterized for density, porosity, microhardness, ductility, and coefficients of thermal expansion (CTE).

Findings

The results show that the composite specimens have very low‐porosity volumes. Moreover, it is found that silicon carbide particles are distributed uniformly in the matrix. Both porosity and mean linear CTE of the composites decreases with silicon carbide volume fraction. However, higher amount of SiCp reinforcement content tends to increase density, microhardness and improve ductility.

Originality/value

The processing employed in this paper would enable realization of electronic packages made out of Al‐Si/SiCp MMCs.

Details

Microelectronics International, vol. 27 no. 1
Type: Research Article
ISSN: 1356-5362

Keywords

Article
Publication date: 6 November 2017

Rajasekharan Pillai K. and Ashish Viswanath Prakash

The purpose of the study is to analyse the perception of students toward a computer-based exam on a custom-made digital device and their willingness to adopt the same for…

Abstract

Purpose

The purpose of the study is to analyse the perception of students toward a computer-based exam on a custom-made digital device and their willingness to adopt the same for high-stake summative assessment.

Design/methodology/approach

This study followed an analytical methodology using survey design. A modified version of students’ perception of e-assessment questionnaire (SPEAQ) was used to elicit information from the subjects, who were drawn from a first-year post-graduate course in management and commerce, soliciting voluntary participation in the survey. SmartPLS 2.0 was the major analytical tool used to understand the theoretical robustness of observed and latent variables through structural equation modelling. The final model was retained based on the structural significance of the path coefficients.

Findings

The results of the study offer ample evidence to establish the proposed theoretical relationship. It was found that the subjects of the study maintained a positive attitude toward e-assessment. Hence, the introduction of e-exams for high-stake assessment is suitable to current generation students.

Research limitations/implications

Findings of the study may be irrelevant to students who are not subject to e-learning processes, as an e-assessment can only be effective when students have ample exposure to working on computers.

Practical/implications

A major practical implication of the study is that e-exams will positively influence the outcome of education and effectiveness of the teaching–learning process. Technology, as an eclectic paradigm, can amplify the educational outcome by boosting the competency of students to meet challenges of any emerging situations.

Originality/value

The idea of an e-exam, using a custom-made device, is unprecedented. This paper offers a convincing empirical evidence to academic administrators to integrate e-assessment with e-learning programs.

Details

Journal of International Education in Business, vol. 10 no. 2
Type: Research Article
ISSN: 2046-469X

Keywords

Article
Publication date: 5 May 2022

Roopa Modem, Sethumadhavan Lakshminarayanan, Murugan Pattusamy, Rajasekharan Pillai K. and Nandan Prabhu

This study addresses a central research question: Is individuals’ propensity to hide knowledge a “political phenomenon” among researchers in the Indian higher education…

Abstract

Purpose

This study addresses a central research question: Is individuals’ propensity to hide knowledge a “political phenomenon” among researchers in the Indian higher education institutions? Drawing upon social exchange and uncertainty management theories, the authors examine how a three-way interaction effect of perceptions of organizational politics, political will and political skill contributes to knowledge hiding. In addition, this study aims to develop a nuanced understanding of the knowledge hiding phenomenon in the Indian higher education context.

Design/methodology/approach

This study adopts a mixed-method study design with an explanatory sequential approach. The authors gathered data through a cross-sectional survey of 286 researchers (Study 1) followed by two focus group discussions (Study 2) involving 13 academic researchers from five Indian universities. The sample includes full-time faculty members, postgraduate and full-time doctoral students engaged in research.

Findings

The results of Study 1 indicate that researchers’ perceptions of organizational politics positively relate to their knowledge hiding. The findings of this study also suggest that the positive relationship between perceptions of organizational politics and knowledge hiding turns negative for individuals with high political will and high political skill. The focus group discussions (Study 2) explore significant predictors of knowledge hiding. This study unveils various characteristics of knowledge, knowledge hider, knowledge seeker and interpersonal dynamics as the key drivers of knowledge hiding in Indian academia.

Originality/value

The significant contributions of this study are to provide new insights into the relationship between organizational politics and knowledge hiding and to unravel the various factors that incite knowledge hiding among researchers in the Indian higher education context. This study is one among the few in the knowledge hiding literature to adopt a mixed-method research design with an explanatory sequential approach.

Details

Journal of Knowledge Management, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1367-3270

Keywords

Article
Publication date: 13 December 2021

Roopa Modem, Sethumadhavan Lakshminarayanan, Rajasekharan Pillai and Nandan Prabhu

The dynamic career scenario and the significant change from traditionally placing careers in employers’ hands to self-managing one’s careers have sparked profound…

Abstract

Purpose

The dynamic career scenario and the significant change from traditionally placing careers in employers’ hands to self-managing one’s careers have sparked profound scholarly interest in career growth. This paper aims to analyze quadricentennial literature on career growth published during the years 1995 through 2020. In this paper, through bibliometric and integrative reviews, the authors address the two critical questions, “what do we know?” and “where should we go?” While the bibliometric review examines the evolution and trends, the integrative review examines the dynamics of conceptual frameworks, primary research foci, research context and quality in research designs and methods.

Design/methodology/approach

The study adopted preferred reporting items for systematic reviews and meta-analyses guidelines to identify the papers for this review. The data set comprised 102 papers and 60 papers for bibliometric and integrative review, respectively. “CiteSpace” is used for the bibliometric analysis and the template designed by the authors is used for the integrative review.

Findings

The results present conceptual clarification for career growth and its related constructs. The bibliometric analysis findings highlight the extensive research on career growth followed by organizational career growth and career growth opportunities. The findings also show that seven of the top 10 productive authors are from China. This study also identifies theoretical, conceptual and methodological opportunities and provides recommendations intended to further research engagements across the different aspects of career growth.

Originality/value

To the best of the authors’ knowledge, this is the first study to introduce bibliometric analysis into career growth literature. This research adopts an integrative review approach and offers insights into career growth literature.

Details

Industrial and Commercial Training, vol. 54 no. 1
Type: Research Article
ISSN: 0019-7858

Keywords

Content available
Book part
Publication date: 15 April 2021

Abstract

Details

The Global Private Health & Fitness Business: A Marketing Perspective
Type: Book
ISBN: 978-1-80043-851-4

Abstract

Details

The Global Private Health & Fitness Business: A Marketing Perspective
Type: Book
ISBN: 978-1-80043-851-4

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