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1 – 10 of 31
Article
Publication date: 21 March 2008

S.A. Umoren, I.B. Obot, L.E. Akpabio and S.E. Etuk

To investigate the adsorption behaviour and inhibitive effect of Vigna unguiculata (VU) extract (agricultural waste material) for aluminium corrosion in 0.5 M NaOH and H2SO4.

Abstract

Purpose

To investigate the adsorption behaviour and inhibitive effect of Vigna unguiculata (VU) extract (agricultural waste material) for aluminium corrosion in 0.5 M NaOH and H2SO4.

Design/methodology/approach

The inhibitive effect of the plant extract was assessed using weight loss method at 30 and 60oC. The trend of inhibition efficiency with temperature was used to propose the mechanism of inhibition and type of adsorption.

Findings

VU extract effectively inhibited aluminium corrosion in both alkaline and acidic media. Inhibition efficiency (I %) of the extract increased with increase in concentration of the extract and temperature. Inhibitor adsorption characteristics were approximated by Freunlich and Temkin adsorption isotherms at all the concentrations and temperatures studied. The phenomenon of chemical adsorption is proposed from the activation parameters obtained.

Research limitations/implications

The mechanistic aspect of the corrosion inhibition can be better understood using electrochemical studies such as polarization and AC impedance spectra.

Practical implications

The findings may be useful in metal surface anodizing and metal coating.

Originality/value

This paper provides new information on the possible application of VU extract as eco‐friendly inhibitor. It has not been reported elsewhere.

Details

Pigment & Resin Technology, vol. 37 no. 2
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 23 August 2013

Roger A. Atinga and Anita A. Baku

To achieve Goal 5 of the MDGs, the Government of Ghana introduced the free maternal health service system to break financial barriers of access to maternal care services…

1095

Abstract

Purpose

To achieve Goal 5 of the MDGs, the Government of Ghana introduced the free maternal health service system to break financial barriers of access to maternal care services. In spite of this, facility‐based deliveries continue to be low due partly to poor quality of antenatal care that prevents pregnant women from giving birth in hospitals. The aim of this study is to examine factors shaping quality of antenatal care in selected public hospitals in the country.

Design/methodology/approach

363 expectant mothers were randomly selected for interview. Women who have previously received antenatal care in the health facilities for at least two occasions were interviewed. Multivariate logistic regression model were computed to examine correlates of antenatal care quality.

Findings

The odds of reporting quality of antenatal care as good was higher among women aged between 30 and 34 years. Similarly women with junior/senior high education were more likely to report antenatal care quality as good. Distance to the health facilities generally influence women perception of antenatal care quality but the relative odds of reporting quality of care as good attenuated with proximity to the health facility. Five factors (pleasant interaction with providers, privacy during consultation, attentiveness of providers, adequate facilities and availability of drugs) emerged as statistically significant in explaining antenatal care quality after controlling for selected demographic variables.

Originality/value

Results of the study generally demonstrate the need to improve maternal services in public facilities to stimulate utilisation and facility‐based deliveries.

Details

International Journal of Social Economics, vol. 40 no. 10
Type: Research Article
ISSN: 0306-8293

Keywords

Article
Publication date: 6 March 2017

Santiago Flores Merino, Juan José Caprari, Luis Vasquez Torres, Luis Figueroa Ramos and Antonella Hadzich Girola

The purpose of this paper is to study the ability of commercial tara powder to convert rust into iron tannate and evaluate their use as raw material for the formulation of…

Abstract

Purpose

The purpose of this paper is to study the ability of commercial tara powder to convert rust into iron tannate and evaluate their use as raw material for the formulation of water based rust converter.

Design/methodology/approach

Water-borne acrylic primers were formulated with tara powder and aqueous tara extract and applied on steel rusted by three different methods. The conversion of rusted steel by tara tannins was studied by X-ray diffraction spectroscopy, infrared spectroscopy and scanning electron microscopy. The acrylic primers, containing hydrolysable tannins, were coated with alkyd finish and were evaluated in comparison to commercial systems in accelerated corrosion tests. The corrosion inhibition effects of tara powder on mild steel in 0.1M NaCl were studied by DC electrochemical techniques.

Findings

Tara tannin converts rust to ferric tannate and increases the magnetite content of rusted steel. The water-based acrylic primer formulated with aqueous extract of tara, alkyd-coated finish, showed performance equivalent to pure alkyd system.

Research limitations/implications

The chlorides content in the commercial tara powder can be screened the beneficial effect of hydrolysable tannins to convert rust. Furthermore, the water-based rust converter formulated with acrylic resin may be sensitive to salt contamination of rust.

Originality/value

Hydrolysable tannins from commercial tara powder have not been studied yet in its application to the development of rust converters. A water-based primer formulated with commercial tara powder developed for the effective treatment of rusted surfaces can be of interest as an environmentally friendly to current commercial approaches.

Details

Anti-Corrosion Methods and Materials, vol. 64 no. 2
Type: Research Article
ISSN: 0003-5599

Keywords

Book part
Publication date: 19 February 2021

Oluwasola Oni

In many developing and developed countries, small/medium-sized enterprises (SMEs) are a very important part of the economy and are commonly referred to as the lifeblood of…

Abstract

In many developing and developed countries, small/medium-sized enterprises (SMEs) are a very important part of the economy and are commonly referred to as the lifeblood of the economy. SMEs in Nigeria have contributed around 48% of the national gross domestic product (GDP) in recent times and account for about 17.4 million jobs. Considering how much they contribute to national economies, it is expedient to seek ways in which they can derive value from innovative technologies to further strengthen their position. Web 2.0 technologies and associated social media applications such as social network sites, microblogging, weblogs and similar technologies are known to improve communication and collaboration among employees and customers. SMEs typically have a small budget for branding, advertising and corporate communication. Consequently, social media provides a ready and inexpensive tool that can be used to communicate with customers and for internal communication and collaboration. Several studies in the area of diffusion of innovations to SMEs argue that they do not usually use adopted technologies to its full potential and as such do not add as much value to the business. Extant research on corporate communication using social media focuses on large organizations’ adoption and use of the technology with little focus on SMEs. This contribution aims to fill this gap by considering how SMEs in Nigeria adopt and use social media to improve corporate communication.

Details

Strategic Corporate Communication in the Digital Age
Type: Book
ISBN: 978-1-80071-264-5

Keywords

Content available
Book part
Publication date: 16 September 2013

Abstract

Details

Mergers and Alliances: The Operational View and Cases
Type: Book
ISBN: 978-1-78350-054-3

Book part
Publication date: 16 September 2013

Kathleen Spring and Brenda DeVore Marshall

This chapter discusses Launching through the Surf: The Dory Fleet of Pacific City, a project which documents the historical and contemporary role of dory fishers in the…

Abstract

This chapter discusses Launching through the Surf: The Dory Fleet of Pacific City, a project which documents the historical and contemporary role of dory fishers in the life of the coastal village of Pacific City, Oregon, U.S. Linfield College’s Department of Theatre and Communication Arts, its Jereld R. Nicholson Library, the Pacific City Arts Association, the Pacific City Dorymen’s Association, and the Linfield Center for the Northwest joined forces to engage in a collaborative college and community venture to preserve this important facet of Oregon’s history. Using ethnography as a theoretical grounding and oral history as a method, the project utilized artifacts from the dory fleet to augment interview data, and faculty/student teams created a searchable digital archive available via open access. The chapter draws on the authors’ experiences to identify a philosophy of strategic collaboration. Topics include project development and management, assessment, and the role of serendipity. In an era of value-added services where libraries need to continue to prove their worth, partnering with internal and external entities to create content is one way for academic libraries to remain relevant to agencies that do not have direct connections to higher education. This project not only developed a positive “town and gown” relationship with a regional community, it also benefited partner organizations as they sought to fulfill their missions. The project also serves as a potential model for intra- and inter-agency collaboration for all types of libraries.

Details

Mergers and Alliances: The Operational View and Cases
Type: Book
ISBN: 978-1-78350-054-3

Keywords

Article
Publication date: 1 February 2003

Nseabasi S. Akpan and Emmanuel M. Akpabio

The Niger Delta is a region in Nigeria endowed with enormous natural resources of which petroleum oil is the most exploited. This petroleum oil has been the engine of…

351

Abstract

The Niger Delta is a region in Nigeria endowed with enormous natural resources of which petroleum oil is the most exploited. This petroleum oil has been the engine of development in Nigeria since 1958, providing more than 90 percent of total exports (CBN, 1981) and over 80 percent of Federal Government revenue. Despite this, the Niger Delta people remain poor and underdeveloped. Youth restiveness and violence is the order of the day. As a product of two separate youth forums, this paper recommends good governance, youth impact assessments, youth inclusion in decision‐making, as well as capacity building as a way out of this discord.

Details

International Journal of Development Issues, vol. 2 no. 2
Type: Research Article
ISSN: 1446-8956

Book part
Publication date: 26 September 2022

Goodness Onwuegbuna, Emma Etim and Jacob Fatile

Governance involves the maintenance and improvement of the quality of life and safety of the people. It is a collaborative process that describes the cooperative efforts…

Abstract

Governance involves the maintenance and improvement of the quality of life and safety of the people. It is a collaborative process that describes the cooperative efforts of all levels of government to ensure that the people enjoy a decent living and are protected from disasters and outbreaks such as the COVID-19 pandemic. Now, the world is facing a new normal arrangement in almost all the economic and social sectors because of restrictions that are brought about by the pandemic with severe challenges on governance and public service delivery. There is an increasing need, therefore, for policymakers to adjust the pattern of public service delivery and policy formulations to curtail the spread of the virus amidst several conspiracies. This chapter adopts the conspiracy theory to explain how the disbelief concerning the existence of the virus promotes its spread in the workplace and the need to embrace and enhance digital transformations in areas such as teleworking, flexible working, health and safety at the workplace, and work-life balance, for optimal service delivery. Data for this chapter were generated through the review of extant literature. The paper makes relevant recommendations for policymakers, managers and administrators in this dispensation and beyond.

Details

Responsible Management of Shifts in Work Modes – Values for a Post Pandemic Future, Volume 1
Type: Book
ISBN: 978-1-80262-720-6

Keywords

Article
Publication date: 25 March 2020

Temidayo O. Akenroye, Jonathan D. Owens, Jamal Elbaz and Olatunde A. Durowoju

Although small- and medium-sized enterprises (SMEs) play major roles in most economies in terms of job creation, innovation and contribution to national income, they are…

1303

Abstract

Purpose

Although small- and medium-sized enterprises (SMEs) play major roles in most economies in terms of job creation, innovation and contribution to national income, they are often underrepresented in public procurement markets. This paper aims to explore how the dynamic capabilities theory can improve SME participation in public procurement.

Design/methodology/approach

Through a systematic literature review, the paper identifies common barriers to the effective participation of SMEs in public procurement and explores the applicability of the dynamic capabilities theory in addressing these barriers.

Findings

A theoretical analysis was conducted to identify possible relationships between the factors reported in the literature as barriers to SME participation in public procurement and different components of the dynamic capabilities of firms (i.e. sensing, seizing, reconfiguring and learning). Seven key propositions were generated to guide future research.

Research limitations/implications

Despite its contributions, this paper is based solely on a systematic literature review and theoretical analysis. Future studies could use meta-analysis to review multiple studies relating to the nexus between SMEs and public procurement, hence improving methodological rigour.

Practical implications

The paper contributes to the ongoing debate about whether and how SMEs can leverage their resources and capabilities to develop self-help strategies to improve participation in public procurement, an area yet underexplored in the literature.

Originality/value

This is one of the few studies examining the implications of firm-level capabilities of SME activity in public procurement markets. The findings may be beneficial to SME managers/owners, particularly regarding firms' ability to leverage resources and capabilities to participate effectively in public procurement.

Details

Business Process Management Journal, vol. 26 no. 4
Type: Research Article
ISSN: 1463-7154

Keywords

Article
Publication date: 1 September 2004

John O. Okpara

The impact of information technology (IT) on society is tremendous. Globalization of trade, the emergence of information economies, and the growth of the Internet and…

5919

Abstract

The impact of information technology (IT) on society is tremendous. Globalization of trade, the emergence of information economies, and the growth of the Internet and other global communications networks have recast the role of information systems in managing global corporations. The purpose of this study was to investigate the extent to which personal characteristics such as gender, age, education, income, and experience predict IT managers' job satisfaction in Nigeria. A sample of 360 IT managers selected from business organizations in Nigeria were used for this research. The results of this study suggest that IT managers were satisfied with their job, co‐workers, and supervision, whereas they were dissatisfied with their pay and the promotion system. The results of regression analyses also showed that personal characteristics were significant predictors of job satisfaction.

Details

Information Technology & People, vol. 17 no. 3
Type: Research Article
ISSN: 0959-3845

Keywords

1 – 10 of 31