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Article
Publication date: 5 January 2015

Reza Tamasgavabari, Kurosh Jafarzadeh, Masumeh Madanipoor and Hassan Badri

The purpose of this paper was the investigation of corrosion behaviour of Ni-6Al-10Cu-11Fe-15Cr alloy, as a candidate material for inert anodes in aluminium electrolysis…

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Abstract

Purpose

The purpose of this paper was the investigation of corrosion behaviour of Ni-6Al-10Cu-11Fe-15Cr alloy, as a candidate material for inert anodes in aluminium electrolysis industries.

Design/methodology/approach

The samples were prepared by casting, and then were oxidized at 1,000°C for 30, 70 and 100 hours, respectively. To determine corrosion resistant of the samples, they were exposed to molten cryolite at 930°C for 70 hours. Then the surface layers were studied.

Findings

Results showed that by extension of corrosion time, thickness of oxide layers increases. In addition, it was found that Al2O3 and Cr2O3 are the major oxide compounds that appear on the surface of the sample.

Originality/value

In this paper, the Ni-6Al-10Cu-11Fe-15Cr nickel base alloy has been selected to study its corrosion behaviour in molten cryolite as a candidate for inert anodes. It was found out that by addition Al and Cr into the alloy composition, due to formation of Al2O3 and Cr2O3 following oxidation, the substrate was protected from corrosion attacks.

Details

Anti-Corrosion Methods and Materials, vol. 62 no. 1
Type: Research Article
ISSN: 0003-5599

Keywords

Available. Open Access. Open Access
Article
Publication date: 20 February 2024

Shaimaa Hadi Al-Dulaimi and Miyada Kh Hassan

This study was design to investigate of P. aeruginosa, an example of Gram-negative bacteria, in seven primary and secondary schools of Baghdad city, and the effects of Ethanol and…

499

Abstract

Purpose

This study was design to investigate of P. aeruginosa, an example of Gram-negative bacteria, in seven primary and secondary schools of Baghdad city, and the effects of Ethanol and Dettol of P. aeruginosa biofilm.

Design/methodology/approach

Seventy swabs were collected from seven primary and secondary schools of Baghdad city, Iraq, during November -December 2022. Swabs were collected from classes desk, doors handles, students hands and water taps. Standard microbiological testing methods were used on the samples for isolation and identification. The ability of bacteria to form biofilm and the effects of Ethanol and Dettol on “preformed” biofilms was examined by microtiter plate with the use of an ELISA reader.

Findings

In 70 swabs from seven primary and secondary schools, growth was observed in 33 swabs as P. aeruginosa. Primary schools were higher contaminated than secondary and water taps and door handles represented the main source of this contamination. The ability of bacteria to produce biofilm was observed in 19 (57.6%) isolates and 14 (42.4%) nonbiofilm producers. As well as, Ethanol (70%) treatment of preformed biofilms led to enhance biofilm formation and revealed significantly greater staining after 4 and 24h than Dettol (3%) compared to an untreated control (tryptic soy broth (TSB) incubation).

Originality/value

Studies on P. aeruginosa in Iraqi schools are quite rare. This work is considered distinctive because it drew attention to the presence of pathogenic bacteria within primary and secondary schools, which are not considered their natural environment.

Details

Arab Gulf Journal of Scientific Research, vol. 42 no. 4
Type: Research Article
ISSN: 1985-9899

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Article
Publication date: 20 October 2021

Walid S. Abdel-Wakil, Tarek M. Salama, Elbadawy A. Kamoun, Farag Abd El Hai Ahmed, Wassem Hassan, Yaser A. El-Badry and Alaa Fahmy

This paper aims to synthesize new terpolymers by the emulsion polymerization technique composed of acrylamide-based polyurethane monomers (TPM and MPM) with different vinyl…

340

Abstract

Purpose

This paper aims to synthesize new terpolymers by the emulsion polymerization technique composed of acrylamide-based polyurethane monomers (TPM and MPM) with different vinyl acetate copolymer systems, such as vinyl acetate/butyl acrylate (VAc/BA), vinyl acetate/ethylhexyl acrylate (VAc/2-EHA) and vinyl acetate/vinyl ester of versatic acid (VAc/VEOVA 10) systems. The performance of the prepared terpolymers as binders in emulsion coatings and textile industries was investigated and compared with the analogous commercial ones.

Design/methodology/approach

New waterborne polyurethane-vinyl ester-vinyl acetate terpolymers with high solid content and nano-scale emulsions have been successfully synthesized in two steps. The polyurethane oligomers were prepared by the prepolymer method as the first step. The second step involved polymerization with different vinyl monomers. The synthesized terpolymers were characterized using FTIR, scanning electron microscope, thermogravimetric analysis, minimum film forming temperature and particle size analyzer methods.

Findings

The synthesized emulsion terpolymers have shown small particle sizes averaged of 70 nm and a narrow distribution range, along with good mechanical, thermal and chemical stabilities. The surface coating layers of the terpolymers also have some important in terms of smoothness, clarity and binding ability in water-based coating for up to 4425 scrub cycles at 30 GU. Further, a high potential application textile printing was achieved at high solid content of 47–50%.

Originality/value

The effects of different isocyanates and vinyl monomers on the properties of obtained emulsion coatings have been studied. The improvement consequences of the coating evaluation of the waterborne binders for emulsion paints have been described. The properties of polyester/cotton fabric print pigment printing of textiles appear to be most promising enhancements by using the prepared nanocomposites of PU-co-vinyl acetate-co-vinyl ester as waterborne binders. So that the prepared emulsions have the potential to replace solvent-based coatings as waterborne binders for both emulsion coating and textile printing applications.

Details

Pigment & Resin Technology, vol. 52 no. 1
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 1 March 2022

Badri Munir Sukoco, Zuyyinna Choirunnisa, Mohammad Fakhruddin Mudzakkir, Ely Susanto, Reza Ashari Nasution, Sunu Widianto, Anas Miftah Fauzi and Wann-Yih Wu

Members' behaviour to support change is a critical factor in organisational change. Building on social cognitive theory, this research investigates how empowering leadership (EL…

1097

Abstract

Purpose

Members' behaviour to support change is a critical factor in organisational change. Building on social cognitive theory, this research investigates how empowering leadership (EL) contributes to behavioural support for change in higher education. The paper argues that the relationship between EL and behavioural support for change is moderated by diversity climate.

Design/methodology/approach

To test the hypotheses, 107 colleges from the highest-ranking 11 universities in Indonesia, consisting of 1,634 faculties, participated in this study.

Findings

Members would experience higher support for change with EL. Furthermore, the positive relationship between EL and behavioural support for change was stronger in members who perceived a more diverse climate.

Originality/value

This study empirically tested how behaviour to support change was determined by leaders' empowering behaviour based on social cognitive theory in a high-power distance culture. In terms of its methodological contributions, this study used a multi-level analysis in order to test EL. Finally, the research on behavioural support for change has been expanded upon through a unit-level analysis.

Details

International Journal of Educational Management, vol. 36 no. 3
Type: Research Article
ISSN: 0951-354X

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Article
Publication date: 24 July 2019

Nur Asnawi, Badri Munir Sukoco and Muhammad Asnan Fanani

Loyalty among customers is the baseline for services to use to grow and sustain their competitive advantage, particularly in the banking industry. There are two primary objectives…

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Abstract

Purpose

Loyalty among customers is the baseline for services to use to grow and sustain their competitive advantage, particularly in the banking industry. There are two primary objectives of this research. First, this study aims to empirically test the Muslim Consumer Service Quality (MCSQ). Second, this study aims to test the mediating effect of Muslim Consumer Satisfaction (MCS) on the relationship between MCSQ and Muslim Consumer Loyalty (MCL) in Indonesian Islamic banks.

Design/methodology/approach

The proposed hypotheses were tested by collecting data from 280 Indonesian Islamic customers. The collected data were tested using PLS-Graph 3.0.

Findings

The findings indicate that MCSQ (consisting of Islamic values, Sharia compliance, honesty, modesty, humaneness and trustworthiness) positively influenced MCS and MCL significantly. Further, the results indicate that MCS partially mediates the influence of MCSQ on MCL.

Research limitations/implications

The data were mainly gathered in Indonesia and the model needs to be tested in other contexts. Furthermore, the questionnaire was distributed among the customers of Islamic banks, and future studies could compare it with the customers of conventional banks or dual account (Islamic and conventional bank) customers. Moreover, further studies should compare between the expectations and reality of the delivered services to understand the service quality gap, which this study did not measure.

Practical implications

The findings indicate that by measuring the service quality in the Islamic context of Islamic banks, such as MCSQ, the managers can design their services to specifically target their Muslim customers. Furthermore, customer satisfaction must be the focus for the bank’s managers when developing MCSQ to close the gap between the expectations and reality of the delivered services.

Originality/value

This study empirically tests the developed MCSQ in the context of Indonesian Islamic banks, which is expected to enrich the literature of service marketing. Furthermore, a partial mediation effect of MCS was identified on the influence of MCSQ on MCL, which few studies have discussed previously.

Details

Journal of Islamic Marketing, vol. 11 no. 1
Type: Research Article
ISSN: 1759-0833

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Article
Publication date: 1 February 2023

Mehmet Ozdemir, Serap Mert and Ayse Aytac

This study aims to perform the surface treatment of synthetic α-Fe2O3 red iron oxide pigment with hydrolysate 3-aminopropyl silane (A) and colloidal silica (CS) and investigate…

157

Abstract

Purpose

This study aims to perform the surface treatment of synthetic α-Fe2O3 red iron oxide pigment with hydrolysate 3-aminopropyl silane (A) and colloidal silica (CS) and investigate the effects of surface-treated pigment on the styrene acrylic (SA) emulsion and polyurethane (PU) dispersion.

Design/methodology/approach

For this purpose, firstly red iron oxide particles were modified with A and CS separately in an aqueous medium. After isolation of the modified iron oxide were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy with energy dispersive spectroscopy (SEM-EDS). Moreover, the degree of the dispersion stability of the modified pigment in coatings with SA emulsion and PU dispersion was investigated by using an oscillation rheometer. Loss (G''), storage (G') modulus, loss factor [tan(δ)] and yield stress (τ0) values were determined by performing amplitude and frequency sweep tests.

Findings

The τ0 in SA coatings decreases with the amount of used A and increases with the amount of used CS. The τ0 decreases as the amount of used A and CS in PU coatings increases. The use of CS on red iron oxide pigments causes storage modulus to increase in SA coatings at low angular frequencies, while it causes a decrease in PU coatings.

Originality/value

To the best of the authors’ knowledge, for the first time, the suspended state of the iron oxide hybrid pigment formed with CS in the coating was investigated rheologically in this study.

Details

Pigment & Resin Technology, vol. 53 no. 4
Type: Research Article
ISSN: 0369-9420

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Article
Publication date: 19 November 2024

Luthfi Nur Rosyidi, Badri Munir Sukoco, Imron Mawardi and Hakan Aslan

Changes are required to improve the performance of Sharia banking in Indonesia. Using dynamic capability theory, this study aims to analyze organizational learning, change process…

58

Abstract

Purpose

Changes are required to improve the performance of Sharia banking in Indonesia. Using dynamic capability theory, this study aims to analyze organizational learning, change process and change context (OCC) in Bank Syariah Indonesia as influenced by market orientation (competitor and customer orientation) and moderated by religiosity and its impact on organizational performance (Maqashid Sharia) using a multilevel perspective.

Design/methodology/approach

To test the hypothesis, this research surveyed by distributing online questionnaires to managers and employees at 62 branch offices of Bank Syariah, the largest Sharia bank in Indonesia. Data processing involved multilevel structural equational modeling with Mplus analysis software.

Findings

Market orientation determines an organization’s ability to change significantly, which leads to organizational performance being significantly moderated by religiosity. In OCC, organizational learning influences change context through change processes, ultimately influencing organizational performance (Maqashid Sharia).

Originality/value

This research used a multilevel perspective by combining market orientation and OCC variables moderated by religiosity and its impact on Maqashid Sharia. This study was conducted at the largest Sharia bank in Indonesia, Bank Syariah Indonesia.

Details

Journal of Islamic Marketing, vol. 16 no. 3
Type: Research Article
ISSN: 1759-0833

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Article
Publication date: 1 December 2006

Masood Abdulla Badri, Hassan Selim, Khaled Alshare, Elizabeth E. Grandon, Hassan Younis and Mohammed Abdulla

The purpose of this paper is to empirically test the causal relationships in the Malcolm Baldrige National Quality Award (MBNQA) Education Performance Excellence Criteria.

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Abstract

Purpose

The purpose of this paper is to empirically test the causal relationships in the Malcolm Baldrige National Quality Award (MBNQA) Education Performance Excellence Criteria.

Design/methodology/approach

Using a sample of 220 respondents from 15 United Arab Emirates (UAE) universities and colleges, results of regression analysis and confirmatory structural equation modeling show that all of the hypothesized causal relationships in the Baldrige model are statistically significant.

Findings

A comprehensive “measurement model” grounded in the Baldrige Performance Excellence in Education Criteria for the 33 items of measurement is developed, tested, and found to be valid and reliable. Leadership is identified as a driver for all components in the Baldrige System, including measurement, analysis and knowledge management, strategic planning, faculty and staff focus and process management. All Baldrige components (categories) are significantly linked with organizational outcomes as represented by the two categories of organizational performance results and student, stakeholder and market focus. The paper also tests the statistical fit of the only Baldrige model dealing with higher education, which was published in 1998 by Winn and Cameron.

Research limitations/implications

The data obtained are based on a sample of UAE higher education institutions. Studies in other countries should be conducted using the developed model to ensure the reliability of the results obtained.

Practical implications

A greater understanding of the linkages between the elements making‐up the MBNQA Education Performance Excellence Criteria model, facilitating the guiding role that the award models play in the implementation of quality management in higher education.

Originality/value

For the first time, an instrument of the MBNQA Education Performance Excellence Criteria is developed and tested. A new in‐depth and holistic perspective for examining the relationships and linkages in the MBNQA Education Performance Excellence Criteria model is provided.

Details

International Journal of Quality & Reliability Management, vol. 23 no. 9
Type: Research Article
ISSN: 0265-671X

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Article
Publication date: 14 December 2020

Ujang Syahrul Mubarrok, Izzani Ulfi, Raditya Sukmana and Badri Munir Sukoco

Most available studies focus mainly on Islamic economics and finance with none conducted on Islamic marketing bibliometrics. The purpose of this paper is to commemorate the 11th…

1187

Abstract

Purpose

Most available studies focus mainly on Islamic economics and finance with none conducted on Islamic marketing bibliometrics. The purpose of this paper is to commemorate the 11th anniversary of the Journal of Islamic Marketing (JIMA) in 2020 by evaluating the publication pattern and scientific advancement of JIMA between 2010 and 2020.

Design/methodology/approach

The paper used bibliometric analysis and visualization of similarities viewer software for the graphical conception of the bibliographic data, including bibliographic coupling, co-citation and co-occurrence of keywords.

Findings

There was an increase in the number of journal documents and this depicts a rising interest in the submission of articles. Moreover, the number of conceptual papers received has also increased and this shows JIMA’s support for knowledge development in Islamic marketing. Meanwhile, Halal is one of the currently trending topics, therefore, there is an opportunity for more exploration and research on the concept.

Research limitations/implications

The bibliographical material applied in this study was only retrieved from the Scopus database. Therefore, more studies need to be conducted by incorporating other indexing and database in the scientific field of Islamic marketing.

Practical implications

The research is useful to understand queries related to scientific products such as the number of publications, contributors, keywords, countries and institutions often used in the articles of the journal.

Originality/value

It presented an exclusive bibliometrics analysis and identified the main trend of the publications in the journal from 2010 when it was established until the second issue of volume 11 in 2020.

Details

Journal of Islamic Marketing, vol. 13 no. 4
Type: Research Article
ISSN: 1759-0833

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Article
Publication date: 19 December 2024

Shahla Eltayeb and Alia Badri

This paper aims to investigates the experiences of violence among Sudanese survivors and the associated mental health outcomes, including posttraumatic stress disorder (PTSD) and…

15

Abstract

Purpose

This paper aims to investigates the experiences of violence among Sudanese survivors and the associated mental health outcomes, including posttraumatic stress disorder (PTSD) and anxiety disorders. It highlights the variety, frequency and severity of political violence exposure and its impact on psychological trauma.

Design/methodology/approach

A cross-sectional quantitative study used data from 324 Sudanese youth exposed to violence. A self-rated 17-item questionnaire assessed violence exposure types and frequency. The General Health Questionnaire and the Davidson Trauma Scale evaluated mental health.

Findings

High levels of PTSD and poor general mental health were found in 60% of the youth. Exposure included brutal beatings (47%), physical torture (17%) and sexual violence (2%), with 47% enduring hours of torture.

Research limitations/implications

The cross-sectional design limits causal inferences, and self-reported data may introduce biases. Future studies should use longitudinal designs and consider cultural factors to better understand the long-term effects of political violence.

Practical implications

The study highlights the need for systematic trauma screening and targeted psychosocial support programs for Sudanese youth, particularly for underrepresented young adult males, to address significant trauma effectively.

Originality/value

This research provides novel insights into the mental health impact of political violence on Sudanese youth, offering valuable evidence to inform policies and programs aimed at supporting this vulnerable population.

Details

Journal of Aggression, Conflict and Peace Research, vol. 17 no. 1
Type: Research Article
ISSN: 1759-6599

Keywords

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