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This paper aims to enlighten the importance of the risk management process which is considered as a major procedure to effectively handle the potential inherent risks in the construction industry. However, most traditional risk analysis techniques are based on theories that deal with each risk factor as an independent, which does not take into consideration the causal relationships between risk factors.

This study aspires to identify the overall risk of the administrative construction projects in Egypt and to recognize the most influencing risk factors through the project life cycle by using Bayesian belief networks (BBN). Through a review of the literature, 27 risk factors were identified and categorized as the most common risk factors in the construction industry. A structured questionnaire was performed to estimate the probability and severity of these risks. Through site visits and interviews with experts in the construction field, 200 valid questionnaires were collected. A risk analysis model was developed using BBNs, then the applicability of this model was verified using a case study in Egypt.

However, the outcome showed that critical risks that manipulate administrative construction projects in Egypt were corruption and bribery, contractor financial difficulties, force majeure, damage to the structure and defective material installation.

The proposed study presents the possibilities available to the project parties to obtain a better forecast of the project objectives, including the project duration, total project cost and the target quality by examining the causal relationships between project risks and project objectives.

This study aspires to identify the overall risk of the administrative construction projects in Egypt and to recognize the most influencing risk factors through the project life cycle by using BBNs.

This paper aims to examine the extent to which financial performance (FP) represents one of the main determinants for tone disclosure (TD) in Egyptian annual reports. The authors also measure the bidirectional relationship between TD and FP.

The manual content analysis is used to measure the levels of TD in annual reports for a sample of 105 firms listed on the Egyptian stock market. The sample covers a three-year period (2011-2013).

The descriptive analysis in this paper shows that Egyptian firms disclose more good news than bad news. Therefore, the net news disclosure, or net variances, between good/bad is positive. The empirical analysis shows a positive association between the narrative disclosure of good/bad news and FP based on return on assets. The authors also find a highly significant association between the auditor, profitability, leverage, firm growth and financial reporting of good/bad news information. Finally, the results of the ordinary least squares regression show that the causality between the two endogenous variables runs from FP to TD. Thus, TD is determined by FP.

This study offers a novel contribution to disclosure studies by being the first study to examine TD in one of the developing countries.

Since public and private spaces are generally considered to be the fundamental building blocks for residential settings, this study draws attention to the need to consider and detail threshold spaces as one of the key aspects for accomplishing sociocultural needs, restoration and well-being in the residential environment. Understanding the function and uses of these spaces allows us to appreciate their benefits which are often neglected. This research particularly focuses on the social dimension of one fundamental threshold pattern; the Cairene balcony.

A qualitative anthropological approach was adopted in this research where in-depth interviews with female residents (n = 46) were conducted in three local contexts in Cairo, Egypt in parallel with non-participatory observation. The present piece focuses on the results elicited from the female residents’ interviews.

Irrespective of the income group, sociocultural background and context, dominating factors influencing women’s perception of the role of the Cairene balcony were commonly present. These included issues of; well-being and restoration, the phenomenon of personalization and identity, functional and communicative purposes, safety and security and privacy and control. Overall, the majority of interviewees stressed the significance of the balcony as a prominent source of prospect and an impermissible part of the residential environment.

The fact that little research has been conducted to examine the everyday use of the balcony and the role it plays in Cairene homes makes this “dedicated” research piece a valuable addition.

This study aims to examine the association between firm size, profitability, leverage, auditor type and internet reporting and investigate the moderating effect of legal system, investor protection, masculinity, economic development, construction of disclosure index and measurement proxies of independent variables.

This study conducts a meta-analytic review for 59 research papers to synthesise quantitatively the results of previous literature on the determinants of internet reporting. This study uses Hunter and Schmidt’s (2004) procedures to conduct the analysis. There are three main procedures to be followed: calculating the weighted effect size, calculating observed correlation variance and sampling error variance and, finally, testing for homogeneity and moderating effects.

The results indicate a significant positive association between firm size, profitability, leverage, auditor type and internet reporting. The results confirm the prediction of agency theory, signalling theory, political cost hypothesis and diffusion of innovation theory. Moreover, the results show that investor protection, masculinity, economic development, construction of disclosure index and measurement proxies for independent variables moderate the association between profitability, leverage and internet reporting.

This study suffers from some limitations. First, corporate governance variables such as board size, role duality and board independence were not included in the analysis due to the limited number of studies that discuss the association between corporate governance and internet reporting. Second, the study does not control for the endogeneity problem.

Future research has to consider the moderating effect of investor protection, masculinity, economic development, construction of disclosure index and measurement proxies for independent variables on the association between corporate characteristics and internet reporting. Future research can extend this work by examining the association between corporate governance, ownership structure and internet reporting. The findings regarding the determinants of internet reporting should be on concern of regulatory authorities.

This study contributes to and extends previous meta-analysis literature by examining internet reporting determinants, as previous financial reporting meta-analysis studies give no attention to internet reporting.

This paper aims to investigate magnetic impacts on bioconvection flow within a porous annulus between an outer cylinder and five inner cylinders. The annulus is filled by oxytactic microorganisms and nano-encapsulated phase change materials.

The modified ISPH method based on the time-fractional derivative is applied to solve the regulating equations in Lagrangian dimensionless forms. The pertinent factors are bioconvection Rayleigh number Ra_b (1–100), circular cylinder’s radius R_c (0.1–0.3), fractional time derivative α (0.95–1), Darcy parameter Da (10⁻⁵–10⁻²), nanoparticle parameter ϕ (0–0.1), Hartmann number Ha (0–50), Lewis number Le (1–20), Peclet number Pe (0.1–0.75), s (0.1–0.9), number of cylinders N_Cylinders (1–4), Rayleigh number Ra (10³–10⁶) and fusion temperature θ_f (0.005–0.9).

The simulations revealed that there is a strong enhancement in the velocity field according to an increase in Ra_b. The intensity and location of the phase zone change in response to changes in θ_f. The time-fractional derivative a acting on a nanofluid velocity and flow characteristics in an annulus. The number of embedded cylinders N_Cylinders is playing a significant role in the cooling processes and as N_Cylinders increases from 1 to 4, the velocity field’s maximum reduces by almost 33.3%.

The novelty of this study is examining the impacts of the magnetic field and the presence of several numbers of embedded cylinders on bioconvection flow within a porous annulus between an outer cylinder and five inner cylinders.

Nano-Clay (NC) is reported as a candidate partial replacement for cement, due to its abundance and relatively low cost - beside reported promotion of different concrete properties. On the other hand, Steel Fibres (SF) has proven to have a positive effect on post fire exposure residual strength of concrete. This paper aims to present the outcomes of a comprehensive research program assessing a hybrid mix between NC and SF in concrete mixtures (NCSF-CRETE).

Physical chemical and physical characterization of NC is performed using different tools as XRF spectrometer, and TEM micrograph. Fresh concrete properties of NSCF-CRETE as slump and air content are investigated. Enhancement in permeability using NSCF is verified by comparing its resistance to the penetration of chlorides resistance with regular concrete mix. Besides, the proposed NCSF-CRETE compressive strength is evaluated compared to mixes with NC and SF each used separately at different curing ages. Besides, NSCF and compared mixes are exposed to an indirect fire testing program – two hours exposure – for: 300, 450 and 600°C. Degradation in compressive strength was investigated after exposure to different temperatures and percentage of residual strength is reported.

Results indicated an improved performance of NCSF -CRETE of about 40% compared to regular concrete in compressive strength at normal conditions. This improvement extended to its behavior when subjected to indirect fire exposure NSCF also maintained 40% more strength than the residual in regular concrete mix – which suffered severe damage – after 2 h exposure to 600°C.

Using NCSF-Crete allows retrofitting the structure after exposure to such drastic conditions.

Real estate projects are capital-intensive and deeply intertwined with economic factors, making them subject to various influences besides local housing needs. This paper aims to comprehensively understand the dynamics of the Egyptian real estate market, examining real estate cycles, driving factors and their correlation and scale of impact.

The study conducts a literature review to explore real estate cycles and their driving factors, along with the relationship between real estate and macroeconomic cycles. It then delves into the dynamics of the Egyptian real estate market, followed by a time series analysis that incorporates five key indicators: economic indicator, demand indicator, supply indicator, capital flow indicator and cost indicator over a 12-year interval (2012–2023), to examine short-term cycle factors, followed by correlation and multi-linear regression analysis to elucidate interrelations among these factors.

Through measuring and comparing the prementioned indicators with different economic and social events, the study paints a comprehensive picture of the macroeconomic environment and the real estate cycle in Egypt. Where demand has been found to be more sensitive and directly affected by macroeconomic factors than the supply. With the economic factor as the factor with the highest impact, especially in times of economic fluctuations, the impact has been immediate and short-term. These findings support the idea that the demand in Egypt is speculative, laying a threat of longer recession periods in the long term and having greater and more direct impact.

This paper contributes to the understanding of the Egyptian real estate market by integrating insights from real estate cycles, macroeconomics and specific market dynamics. The application of time series, correlation and multi-linear regression analysis provides a nuanced understanding of the interplay between several factors shaping the real estate cycle. Ultimately, the findings offer valuable insights for decision-makers involved in urban development planning, facilitating more informed and precise decision-making processes.

Material-based computation has been recently introduced in architectural education, where parameters and rules related to materials are integrated into algorithmic thinking. The authors aim to identify affordances of material-based computation in terms of supporting the understanding of parametric design, informing the process of parametric form finding in an educational setup and augmenting student learning outcomes.

The authors propose a material-informed holistic systems design framework for parametric form finding. The authors develop a pedagogical approach that employs material-based computation focusing on the interplay between the physical and the digital in a parametrically driven façade design exercise. The approach comprises two phases: (1) enabling physical exploration with different materials to arrive at the design logic of a panel prototype and (2) deducing embedded and controlled parameters, based on the interplay of materials and deriving strategies for pattern propagation of the panel on a façade composition using variation and complexity.

The results confirmed the initial hypothesis, where the more explicit the material exploration and identification of physical rules and relations, the more nuanced the parametrically driven process, where students expressed a clear goal oriented generative logic and utilized parametric design to inform form finding as a bottom-up approach.

Most precedent approaches developed to teach parametric design concepts in architectural education have focused on universal strategies that often result in fixating students on following standard blindly followed scripts and procedures, thus defying the purpose of a bottom-up form finding framework. The approach expands the pedagogical strategies employed to address parametric design as a form finding process.

Heritage buildings are significant for their historical and architectural value. Due to the lack of rating systems designed specifically for heritage buildings, it is essential to develop and validate a heritage building assessment tool that considers its specific characteristics. The purpose of this study is to provide an extensive review of research on Sustainability of Heritage Buildings (SHBs).

This review highlights methodologies applied in SHBs research and analyzes major global rating systems in order to identify their deficiencies for SHBs assessment. A systematic review was employed and articles from the top 10 high impact factor journals were studied. Twelve major global rating systems and their assessment criteria were identified.

Significant variability was observed among the assessment tools since each tool assesses several criteria, factors and indicators that fit its local context. Part of this variability can also be seen in the rating scales, threshold values and accreditation titles. As a result, the final sustainability ranking for a given building cannot be compared among the 12 rating systems. Most importantly, these systems fail to analyze some factors such as energy that are considered important with respect to heritage building assessment.

Since no specific rating system could be identified in this review as the most appropriate for heritage buildings, a new sustainability assessment tool that is specific to heritage buildings should be developed. Such a tool will enable facility managers to evaluate and improve the sustainability of their heritage buildings while preserving them.