In literature, previous studies have focused on analyzing rienforced concrete (RC) columns with idealized end conditions when subjected to fire. In nature, full fixity or free…
Abstract
Purpose
In literature, previous studies have focused on analyzing rienforced concrete (RC) columns with idealized end conditions when subjected to fire. In nature, full fixity or free rotation at column ends is not attained. Such ends may be considered partially restrained in rotation. This paper aims to shed a new light on the effect of different degrees of rotational restraint on the lateral deformation behavior of slender heated RC columns subjected to non-linear strain distributions produced by a time-dependent temperature history.
Design/methodology/approach
To find the strain distribution on the cross section, an iterative technique is adopted using Newton–Raphson method. By introducing a reliable calculation procedure, the lateral deformational behavior is expressed using numerical and searching techniques. A methodology is presented to calculate the effective length factor for RC columns at elevated temperature.
Findings
The results of the proposed model showed good agreement with available experimental test results. It was also found that the variation of rotational end restraint level has a considerable effect on the lateral deformation behavior of heated slender RC columns. In addition, the effectiveness and the validity of an analytical model should be verified by simultaneously validating the axial and lateral deformations. Moreover, the effective length factor for heated column is higher than that for the corresponding column at ambient temperature.
Originality/value
This paper shows the impact of different boundary conditions on the behavior of heated slender RC columns. It suggests powerful techniques to determine the lateral deflection and the effective length factor at high temperatures.
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Previous works in constructing interaction diagrams have only focused on incorporating transient creep strain implicitly in the ultimate limit strain. The present paper aims to…
Abstract
Purpose
Previous works in constructing interaction diagrams have only focused on incorporating transient creep strain implicitly in the ultimate limit strain. The present paper aims to use different approaches to define concrete ultimate limit strain (failure strain) envelops at high temperatures for preloaded and unloaded, confined and unconfined, columns during heating are proposed. These approaches are chosen to understand the effect of using different techniques to determine transient creep strain on the resulted Nu–Mu diagrams.
Design/methodology/approach
Transient creep strain is included within the concrete ultimate limit strain relationships, implicitly and explicitly, by four different ways, and accordingly, four different failure criteria are suggested. To define the concrete ultimate limit strain, studies are conducted to evaluate the compression strain corresponding to the maximal flexural capacity at elevated temperatures. In the analysis, the thermal and structural analyses are decoupled and, based on the resulted ultimate limit strain, the Nu – Mu diagrams are constructed at different fire exposures.
Findings
The validity of the proposed model is established by comparing its predictions with experimental results found in the literature. Finally, comparative calculations regarding interaction diagrams obtained by the proposed model and by other methods found in the literature are performed. It was found that the proposed model predictions agree well with experimental results. It was also found that the suggested approaches, which include simplifications, reasonably predicted the exact column capacity.
Originality/value
The model.
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Mahmoud Mohieldin, Khaled Hussein and Ahmed Rostom
This paper aims to discuss the evolution of the Egyptian banking sector and the main trends in financial development in Egypt. The purpose of this study is to examine empirically…
Abstract
Purpose
This paper aims to discuss the evolution of the Egyptian banking sector and the main trends in financial development in Egypt. The purpose of this study is to examine empirically the relationship between the development of the financial sector and economic growth in Egypt between 1980 and 2016.
Design/methodology/approach
The paper draws comparisons based on critical financial indicators between Egypt and selected emerging markets and developing economies. It uses a new data set of financial development indexes released by the International Monetary Fund. This paper uses econometric time series modelling of bivariate regressions for real growth per capita and measures of financial development to assess the relationship between financial development and economic growth in Egypt.
Findings
There are three specific findings based on the empirical analysis. First, there is a strong association between real growth per capita and financial development measured by money supply to GDP. Second, access to and the efficiency of banking services are not associated with real per capita income. Third, the Financial Markets Access Index – which compiles data on market capitalization outside of the top ten largest companies and the number of corporate issuers of debt – indicates a robust association with real per capita GDP.
Originality/value
The paper uses advanced empirical investigation techniques and new data sets available to assess the critical relationship between finance and growth in Egypt. The main policy implications of the empirical results of this paper suggest a stronger focus on promoting a more proactive role for the financial services industry in Egypt. In particular, there is a critical role for bank financing to support the private sector to maintain an inclusive growth momentum. Further development of the capital market will promote sustainability of such economic growth.
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Mahmoud Elmarzouky, Khaldoon Albitar and Khaled Hussainey
This paper aims to investigate whether Covid-19 related information is associated with a higher level of performance disclosure in the annual reports. Furthermore, it examines the…
Abstract
Purpose
This paper aims to investigate whether Covid-19 related information is associated with a higher level of performance disclosure in the annual reports. Furthermore, it examines the moderating effect of corporate governance on the relationship between Covid-19 and the performance disclosure by using three governance mechanisms: board size, board independence and gender diversity.
Design/methodology/approach
The authors use quantitative content analysis. The authors applied an automated textual analysis technique to measure the level of Covid-19 information and performance disclosure for the UK Financial Times Stock Exchange all-share non-financial firms.
Findings
The authors found a significant positive relationship between the Covid-19 disclosure and the firm performance disclosure in the annual reports. The authors also find that both board independence and gender diversity moderate the relationship between the Covid-19 related information and the level of performance disclosure in the annual reports. The authors further run a robustness analysis, which confirms the main results.
Practical implications
The finding is beneficial for the regulatory setters to better understand whether firms provide generic or meaningful Covid-19 information linked to the firm’s performance. The unique findings of this paper are relevant to regulators, governments, management, shareholders and academics.
Originality/value
The authors contribute to the literature in a unique and core research area not researched previously. The paper links the Covid-19 disclosure with the firm performance from the corporate narrative perspective. The paper underlines governance factors as a moderating role in this relationship by considering three main mechanisms: board size, board independence and gender diversity.
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Leehe Friedman, Yair Samban, John Tyson Chatagnier and Alex Mintz
This chapter offers an analysis of the decision code of Khaled Mashal, the former leader of the Hamas organization. Using the Applied Decision Analysis (ADA) method, it examines…
Abstract
This chapter offers an analysis of the decision code of Khaled Mashal, the former leader of the Hamas organization. Using the Applied Decision Analysis (ADA) method, it examines five decisions made by Mashal in 2011–2017. The analysis suggests that Mashal tends to use mainly the poliheuristic decision rule in these decisions, and considers the political-organizational dimension of Hamas as non-compensatory. Thus, Mashal made these decisions by first eliminating any alternative which risked his organization’s political status, and only then he rationally chose the alternative with the greatest expected utility from the remaining ones.
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Leadership is basically about influence and ability to cultivate followership. This chapter examined the nature of indigenous socio-political leadership in Africa using Zimbabwe…
Abstract
Leadership is basically about influence and ability to cultivate followership. This chapter examined the nature of indigenous socio-political leadership in Africa using Zimbabwe, Sudan and Nigeria as caselets and compared this with the post-colonial or modern-day leadership realities. A survey was conducted among senior executives at Lagos Business School, Nigeria, with a sample size of 200 persons, to find out their perception of the African indigenous leadership system. An overwhelming 90% believe that culture plays a big role in shaping African leadership style. However, two-thirds of the respondents agreed that Africa lacks proper institutional structures to support good leadership, thus encouraging corruption (97% of the respondents) and non-accountability among the leaders. Also, only 5% thought cultural orientation was the reason why the African followers do not hold their leaders accountable. In other words, it is not in the African culture not to hold leaders accountable for their actions. So, what went wrong? We attempted a deeper look at the effect of colonial rule and the attendant militarisation of the African continent. Our conclusion is that the colonisation of the continent by Europe brought significant distortion to the traditional African indigenous leadership institutions and the psyche of the African leader and the followers alike. Post-colonial Africa has witnessed 133 recorded coups d’etat between 1952 and 2016. This chapter is recommended to all those who seek a deeper understanding of the nature of the African indigenous leadership practices and the factors that have shaped these over the years.
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Khaldoon Albitar, Mahmoud Elmarzouky and Khaled Hussainey
This paper aims to examine the impact of ownership concentration on Covid-19 disclosure in the narrative sections of corporate annual reports. It also explores the mediating role…
Abstract
Purpose
This paper aims to examine the impact of ownership concentration on Covid-19 disclosure in the narrative sections of corporate annual reports. It also explores the mediating role of corporate leverage on the ownership concentration–Covid-19 disclosure relationship.
Design/methodology/approach
This paper uses automated textual analysis to measure Covid-19 disclosure in annual reports. It also applies different regression models to test the research hypotheses and to address the endogeneity problem. It uses univariate and multivariate analyses through correlations and ordinary least squares.
Findings
The analysis shows that ownership concentration has a negative impact on Covid-19 disclosure. It also shows that corporate leverage negatively affects Covid-19 disclosure, and it has a partial mediating effect on the ownership concentration–Covid-19 disclosure relationship.
Practical implications
The results offer important practical implications for the government, management, shareholders and policymakers. For example, corporate managers are encouraged to consider small shareholders’ interests and provide a sufficient level of Covid-19 disclosure to avoid violating their rights. Also, the government may consider forming a mechanism for balancing the ownership structure to protect small investors and weaken large shareholders’ tunnelling behaviours.
Originality/value
This paper offers two important contributions to governance and disclosure literature. First, it provides new empirical evidence on the relationship between ownership concentration and Covid-19 disclosure. Second, it provides new evidence on the mediating role of the leverage ratio on the ownership concentration–Covid-19 disclosure relationship.
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Mahmoud Elmarzouky, Khaled Hussainey and Tarek Abdelfattah
This paper aims to investigate the relationship between key audit matters (KAMs) and audit costs and whether board size and independence affect this relationship. Furthermore…
Abstract
Purpose
This paper aims to investigate the relationship between key audit matters (KAMs) and audit costs and whether board size and independence affect this relationship. Furthermore, this paper examines the moderating effect of corporate governance on the relationship between KAMs and audit costs.
Design/methodology/approach
The authors hypothesise that disclosing more KAMs in the audit report is positively associated with audit costs because of the greater effort. The agency theory suggests that firms with good governance will mitigate the agency conflict of interest and improve financial reporting quality. Thus, good governance might moderate the relationship between reported KAMs and audit costs. The authors use a quantitative approach. The authors are using a sample of the UK FTSE all-share non-financial firms from 2014 to 2018 for the UK Financial Times Stock Exchange all-share non-financial firms.
Findings
The authors provide evidence of a significant positive relationship between KAMs and audit costs. The relationship is relatively higher when considering the independent directors' percentage as a moderating factor. These results came consistent with the agency theory literature. However, the authors found no empirical evidence to support a moderating effect of board size on the relationship between KAMs and audit cost.
Practical implications
The finding benefits the regulatory setters to better understand the consequences of the new auditing standards. This paper has theoretical and practical implications for regulators, standard setters, professional bodies, shareholders and academics.
Originality/value
This paper contributes to the literature assessing the regulatory changes related to audit reform and adds to the debate on the impact on audit costs. This paper underlines governance factors as a moderating role in this relationship between KAMs and audit costs.
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Al-Tahrir Square (Liberation Square, in Arabic) is one of the main public spaces in Cairo, Egypt, and was the focal point for the Egyptian Revolution of January 2011. Although…
Abstract
Al-Tahrir Square (Liberation Square, in Arabic) is one of the main public spaces in Cairo, Egypt, and was the focal point for the Egyptian Revolution of January 2011. Although Tahrir Square is traditionally a noisy disliked crowded traffic zone, people gathering and demonstrating during 2011 transformed the a space into a livable interactive civic place (Bricoleurbanism, 2019). The study integrates three main subjects affecting each other: first; Tahrir history and its architectural description, second; activities and events of 2011 revolution at Tahrir and thirdly; theories and concepts of place/space transformations. Many space and place transformation cycles of the Al-Tahrir square have been studied for over a century. It shows that transformation happens when a “meaning” is added and “memories” turn into “behavior” and belonging (Pallasmaa, 2014). This chapter discusses how both the functions and the mental image of Al-Tahrir Square changed with the events along with the behavior of its occupants during 2011.
The square was analyzed to discover the mechanisms, motives, and reasons that caused such change. Furthermore, a comparison between Tahrir Square's status before and after 2011 was offered, according to “New Urbanism's successful places criteria” (PPS, 2009). Recently, physical and moral evacuation of the square deliberately enforced to replace its iconographic status as a place of revolution, with ancient Egyptian elements. This study elaborates on these results demonstrating how Cairo's Tahrir Square is a remarkable example of the dynamic nature of public spaces turning into places, and then into spaces again, due to actions of authority or the will of people.
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Nowadays, the main challenge in the higher education is the daunting task of transforming universities into digital era institutions. Improving HE students' competence to meet the…
Abstract
Nowadays, the main challenge in the higher education is the daunting task of transforming universities into digital era institutions. Improving HE students' competence to meet the flow of technological innovations through DT has been the focus of many countries. This task has imposed the restraint that HE institutions should implement the most effective strategies of DT. This chapter is focusing on how DT strategies play their role in making the transformation itself become germane and give its fruits. Therefore, this chapter presents the most effective DT strategies that can be implemented by HE institutions in order to prepare their students for the existing professional roles in their societies. A good DT strategy is one that connects the organization's current level of digital maturity with its future ambition. The well-known strategies in the DT field are as follows: the strategy of electronic projects, strategy of smart electronic platforms, integrated training strategy, participatory e-learning strategy, smart learning strategy, pervasive learning strategy, microlearning strategy and e-design thinking strategy, in addition to the strategy in which traditional learning methods are combined with e-learning methods. It is worth noting here that the chapter is not an attempt to favor a strategy over another or compare and contrast them to uncover their differences at any level. On the contrary, the writer will work on displaying how each strategy can be implemented in order to accomplish DT in HE instructional practices. Also, this chapter will show how complementary these strategies can be once they are utilized to reach DT.