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1 – 10 of 195
Article
Publication date: 24 April 2024

Salwa Moustafa Amer Mahmoud, Tarek Hamdy, Mohamed Fares, Wissam Ayman, Shrouk Muhamed, Aya Abdel Khaliq and Lilian Salah

This paper aims to investigate the ability of traditional biopolymers, such as funori or the nanoscale form of cellulose nanocrystals, to consolidate fragile paper and preserve it…

Abstract

Purpose

This paper aims to investigate the ability of traditional biopolymers, such as funori or the nanoscale form of cellulose nanocrystals, to consolidate fragile paper and preserve it for as long as possible.

Design/methodology/approach

Degraded papers dating back two centuries were separated into paper samples for consolidation processes. Funori – a marine spleen – was used as a traditional consolidation material and a mixture with ZnO NPs compared with modern materials, such as cellulose nanocrystals. The samples were aged for 25 years, examinations and analyses were performed using scanning electron microscopy and color change was assessed using the CIELAB system, X-ray diffraction and Fourier-transform infrared spectroscopy.

Findings

According to the results, using traditional materials to consolidate damage, such as funori, after aging resulted in glossiness on the surface, a color change and increased water content and oxidation. Furthermore, samples treated with a mixture of ZnO NPs and funori revealed that the mixture improved the sample properties and increased the degree of crystallization. Cellulose nanocrystals improved the surface, filled gaps, formed bridges between the fibers and acted as a protector from aging effects.

Originality/value

This paper highlights the ability of nanomaterials to enhance the properties of materials as additives and treat the paper manuscripts from weaknesses.

Details

Pigment & Resin Technology, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 19 February 2018

Chams-Eddine Djaghballou, Mohamed Djaghballou, Mousa Larbani and Azhar Mohamad

The purpose of this study is to examine the efficiency and productivity performance of zakat funds managed by Directorates of Religious Affairs and Endowments (DRAE) in Algeria.

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Abstract

Purpose

The purpose of this study is to examine the efficiency and productivity performance of zakat funds managed by Directorates of Religious Affairs and Endowments (DRAE) in Algeria.

Design/methodology/approach

In this study, the authors employ data envelopment analysis and measure Malmquist Productivity Index for DRAE’s input and output data spanning from 2003 to 2013.

Findings

The authors find that total factor productivity has increased sharply for all zakat funds, mainly due to a technical rather than efficiency change. Further decomposition of the efficiency change into its pure technical and scale efficiency components suggests that the pure efficiency is a more important source of efficiency change than the scale efficiency component, meaning that zakat funds rely on technical aspects to gain efficiency.

Originality/value

The findings of this study are expected to contribute considerably to the existing knowledge on the operating performance of zakat funds in Algeria.

Details

International Journal of Islamic and Middle Eastern Finance and Management, vol. 11 no. 3
Type: Research Article
ISSN: 1753-8394

Keywords

Book part
Publication date: 16 August 2014

Anne-Maria Holma

This study provides a comprehensive framework of adaptation in triadic business relationship settings in the service sector. The framework is based on the industrial network…

Abstract

This study provides a comprehensive framework of adaptation in triadic business relationship settings in the service sector. The framework is based on the industrial network approach (see, e.g., Axelsson & Easton, 1992; Håkansson & Snehota, 1995a). The study describes how adaptations initiate, how they progress, and what the outcomes of these adaptations are. Furthermore, the framework takes into account how adaptations spread in triadic relationship settings. The empirical context is corporate travel management, which is a chain of activities where an industrial enterprise, and its preferred travel agency and service supplier partners combine their resources. The scientific philosophy, on which the knowledge creation is based, is realist ontology. Epistemologically, the study relies on constructionist processes and interpretation. Case studies with in-depth interviews are the main source of data.

Details

Deep Knowledge of B2B Relationships within and Across Borders
Type: Book
ISBN: 978-1-78190-858-7

Keywords

Article
Publication date: 1 June 1999

David Pollitt

Presents a series of articles on each of the following topics: digital strategy in the next millennium (Digital strategy – a model for the millennium; Searching for the next…

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Abstract

Presents a series of articles on each of the following topics: digital strategy in the next millennium (Digital strategy – a model for the millennium; Searching for the next competitive edge; The technology link; Value web management opportunities; clash of the Titans: communications companies battle for new ground; and a guide through the maze); retailing and distribution in the digital era (The business case for electronic commerce; superdistribution spells major changes; VF Corp. sews up software operation; IBM seeks to harness digital revolution; Egghead’s bold move to a Web‐based strategy; achieving successful Internet banking; and enterprising uses for IT); and the changing shape of the aviation industry (boom times ahead for air cargo; United Airlines flies high through employee ownership; Asian practices to West at Cathay Pacific; and Ryannair strips to the bone).

Details

International Journal of Physical Distribution & Logistics Management, vol. 29 no. 5
Type: Research Article
ISSN: 0960-0035

Keywords

Open Access
Article
Publication date: 9 December 2020

Mohamed Saih Mahfouz, Suhaila Abdalkarim Ali, Haya Ahmed Alqahtani, Amani Ahmad Kubaisi, Najla Mohammed Ashiri, Eshrag Hassan Daghriri, Shaima Ali Alzahrani, Azhar Ahmed Sowaidi, Afnan Mousa Maashi and Doa’a Albarag Alhazmi

The purpose of this study is to assess the prevalence of burnout syndrome and its associated factors among medical students at Jazan University, Jazan, Kingdom of Saudi Arabia.

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Abstract

Purpose

The purpose of this study is to assess the prevalence of burnout syndrome and its associated factors among medical students at Jazan University, Jazan, Kingdom of Saudi Arabia.

Design/methodology/approach

A cross-sectional survey was conducted among 440 randomly selected medical students at Jazan University. The questionnaire used for this study was based on the Copenhagen Burnout Inventory.

Findings

The overall prevalence of burnout was estimated at 60.2% (95% CI 55.6–64.8). The prevalence was higher for females (64.1%) than for males (56.2%) but without statistically significant differences (p > 0.05). On average, the students scored the highest averages in the personal burnout category, followed by the study-related and client-related burnout categories. In the multivariate analysis, a lower age (beta = −3.17, p = 0.026), female (beta = −0.896, p = 0.016), and having better burnout knowledge (beta = 0.710, p = 0.025) predict significantly higher personal burnout.

Practical implications

It is necessary to implement strategies to reduce the incidence of burnout among medical students for the sake of a better quality of life for future doctors.

Originality/value

There is a high prevalence of burnout among Jazan’s medical students.

Details

Mental Illness, vol. 12 no. 2
Type: Research Article
ISSN:

Keywords

Expert briefing
Publication date: 6 December 2017

Food insecurity in North Africa.

Case study
Publication date: 23 May 2014

Virginia Weiler, Paul Farris, Gerry Yemen and Kusum Ailawadi

By late March 2014, the ridesharing company Uber was on a roll, rapidly expanding service to untapped markets and gaining new, enthusiastic customers, as well as a few vocal and…

Abstract

By late March 2014, the ridesharing company Uber was on a roll, rapidly expanding service to untapped markets and gaining new, enthusiastic customers, as well as a few vocal and visible detractors. Uber’s innovative organization of the supply-demand matching process produced eager customers who recruited others. Buzz marketing and aggressive recruitment of drivers augmented growth.

This case presents Uber as an example of a middleman adding real value for consumers and upstream suppliers (limo drivers). Unlike Tesla, which battled to sell cars directly to the public, Uber created value by adding a layer between limos and prospective riders, organizing the market for convenience and transparency for both sides. Where Uber stirred up the competitive equivalent of a hornet’s nest was with expansion from the livery car market into the taxi service market with UberX. The material allows for a lively discussion around disruptive digital technology and the firm’s business model.

Details

Darden Business Publishing Cases, vol. no.
Type: Case Study
ISSN: 2474-7890
Published by: University of Virginia Darden School Foundation

Article
Publication date: 1 January 1982

Maintaining an adequate nutritional state, important at all times, is never more so than during the dark days of Winter. The body reserves are then taxed in varying degrees of…

Abstract

Maintaining an adequate nutritional state, important at all times, is never more so than during the dark days of Winter. The body reserves are then taxed in varying degrees of severity by sudden downward plunges of the thermometer, days when there is no sight of the sun, lashing rains and cold winds, ice, frost, snow, gales and blizzards. The body processes must be maintained against these onslaughts of nature — body temperatures, resistance against infections, a state of well‐being with all systems operating and an ability to “take it”. A sufficient and well balanced diet is vital to all this, most would say, the primarily significant factor. The National Food Surveys do not demonstrate any insufficiency in the national diet in terms of energy values, intake of vitamins, minerals and nutrients, but statistics can be fallacious amd misleading. NFS statistics are no indication of quality of food, its sufficiency for physiological purposes and to meet the economic stresses of the times. The intake of staple foods — bread, milk, butter, meat, &c., — have been slowly declining for years, as their prices rise higher and higher. If the Government had foreseen the massive unemployment problem, it is doubtful if they would have crippled the highly commendable School Meals Service. To have continued this — school milk, school dinners — even with the financial help it would have required would be seen as a “Supplementary Benefit” much better than the uncontrolled cash flow of social security. Child nutrition must be suffering. Stand outside a school at lunch‐time and watch the stream of children trailing along to the “Chippie” for a handfull of chip potatoes; even making a “meal” on an ice lollie.

Details

British Food Journal, vol. 84 no. 1
Type: Research Article
ISSN: 0007-070X

Article
Publication date: 16 March 2015

Nai Chiek Aik, M. Kabir Hassan, Taufiq Hassan and Shamsher Mohamed

– This paper aims to examine the productivity and spillover effect of Malaysian horizontal merger and acquisition (M&A) activities in the long run.

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Abstract

Purpose

This paper aims to examine the productivity and spillover effect of Malaysian horizontal merger and acquisition (M&A) activities in the long run.

Design/methodology/approach

In terms of analytical tools, economic value added (EVA) and data envelopment analysis (DEA) are used.

Findings

The results of this study reveal that M&As in the absence of antitrust laws could be driven by managerial self-interest to create market power instead of realizing synergistic gains. Also, in Malaysia, the non-merging rival firms have significantly higher productivity improvement than the control bidder firms, and therefore, this study has identified the spillover effect as a behavior of M&A reaction.

Originality/value

This paper differs from previous studies in that it attempts not only to examine the real long-term gains of horizontal M&A activities in Malaysia but also the spillover effects of M&A activities on similar but non-merging firms.

Details

Management Research Review, vol. 38 no. 3
Type: Research Article
ISSN: 2040-8269

Keywords

Article
Publication date: 5 March 2020

Tamer Mohamed Shahwan and Ahmed Mohamed Habib

Using data on 51 firms traded in the Egyptian Exchange from 2014 to 2016, this paper aimed to assess the efficiency of corporate governance (CG) and intellectual capital (IC…

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Abstract

Purpose

Using data on 51 firms traded in the Egyptian Exchange from 2014 to 2016, this paper aimed to assess the efficiency of corporate governance (CG) and intellectual capital (IC) practices and to explore their influence on the probability of a firm's financial distress.

Design/methodology/approach

The relative efficiency of CG and IC practices has been measured under the Malmquist data envelopment analysis model. A modified Z-score model was applied to assess firms' financial distress.

Findings

The Wilcoxon signed-rank test revealed almost insignificant evidence regarding the improvement of CG and IC efficiency over the study period. The efficiency score of CG practices had no impact on the likelihood of financial distress. However, the efficiency score of IC negatively affected the probability of financial distress.

Research limitations/implications

The integration of data envelopment analysis with Tobit regression was required for identifying the significant drivers of efficient CG and IC.

Practical implications

The findings shed light on the role of CG and IC in alleviating the degree of financial distress in Egypt as an emerging market, especially the need to raise firms' compliance with the Egyptian CG code from a voluntary to mandatory status.

Originality/value

This study, using Malmquist data envelopment analysis, is among the first attempts to assess the relative efficiency of CG and IC practices and their effects on financial distress.

Details

Journal of Intellectual Capital, vol. 21 no. 3
Type: Research Article
ISSN: 1469-1930

Keywords

1 – 10 of 195