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The purpose of the paper is to showcase the significant achievements of Egypt's scientists in the 20th century across various fields of study such as medicine, physics, chemistry, biology, math, geology, astronomy and engineering. The paper highlights the struggles and successes of these scientists, as well as the cultural, social and political factors that influenced their lives and work. The aim is to inspire young people to pursue careers in science and make their own contributions to society by presenting these scientists as role models for hard work and dedication. Ultimately, the paper seeks to promote the importance of science and its impact on society.

The purpose of this review is to present the scientific biographies of Egypt's most distinguished scientists, primarily in the field of Natural Sciences, in a balanced and comprehensive manner. The work is objective, honest and abstract, avoiding any bias or exaggeration. The author provides a clear and concise methodology, including a brief introduction to the scientist and their field of study, an explanation of their major contributions, the impact of their work on society, any challenges or obstacles faced during their career and their lasting legacy. The aim is to showcase the important achievements of these scientists, their impact on their respective fields and to inspire future generations to pursue scientific careers.

The group of outstanding scientists in 20th century Egypt were shaped by various factors, including familial upbringing, education, society, political and cultural atmosphere and state support for scientific research. These scientists made significant contributions to various academic disciplines, including medicine, physics, chemistry, biology, mathematics and engineering. Their impact on their communities and cultures has received international acclaim, making them role models for future generations of scientists and researchers. The history of these scientists highlights the importance of educational investments and supporting scientific research to foster innovation and social progress. The encyclopedia serves as a useful tool for students, instructors and education professionals, preserving Egypt's scientific heritage and honouring the scientists' outstanding accomplishments.

The encyclopedia preserves Egypt's scientific heritage, which has been overlooked for political or other reasons. It is a useful tool for a variety of readers, including students, instructors and education professionals, and it offers insights into universally relevant scientific success factors as well as scientific research methodologies. The encyclopedia honours the outstanding scientific accomplishments of Egyptian researchers and their contributions to the world's scientific community.

The practical implications of this paper are several. First, it highlights the importance of education, family upbringing and societal support for scientific research in fostering innovation and social progress. Second, it underscores the need for continued funding and support for scientific research to maintain and build upon the accomplishments of past generations of scientists. Third, it encourages young people to pursue scientific careers and make their own contributions to society. Fourth, it preserves the scientific heritage of Egypt and honors the contributions of its outstanding scientists. Finally, it serves as a useful tool for students, instructors and education professionals seeking to understand the factors underlying scientific success and research methodologies.

The social implications of the paper include promoting national pride and cultural identity, raising awareness of the importance of education and scientific research in driving social progress, inspiring future generations of scientists and researchers, reducing socioeconomic disparities and emphasizing the role of society, politics and culture in shaping scientific researchers' personalities and interests.

The paper's originality/value lies in its comprehensive documentation of the scientific biographies of Egypt's most prominent scientists in the 20th century, providing unique insights into the factors that contributed to their development and their impact across various academic disciplines. It preserves Egypt's scientific heritage and inspires future generations of scientists and researchers through the promotion of educational investments and scientific research. The encyclopedia serves as a useful tool for education professionals seeking to understand scientific success factors and research methodologies, emphasizing the importance of supportive and inclusive environments for scientific development.

This paper seeks to investigate to what extent (and why) CSR reporting in developing countries reflect instrumental and/or “political CSR” motivations and the types of organisational legitimacy sought in these circumstances.

We adopt a theoretical framework based on neo-institutional theory, “political CSR” framework and types of organisational legitimacy. This interpretive research is set in the Egyptian context post-2011 revolution. We first carry out a content analysis of web disclosures for 40 banks in 2013 and 2016 to ascertain the nature of CSR activities and any changes over time. Second, we draw on 21 interviews to tease out the implications of the change in societal expectations due to the revolution and to deepen our understanding of the organisational motivations underlying CSR reporting.

Following the 2011 revolution, the banks’ CSR reporting practices have gradually shifted from a largely instrumental “business-case” perspective towards a more substantive recognition of a wider set of societal challenges consistent with a political CSR perspective. Overall, the maintaining/gaining of legitimacy is gradually bound to the communication of accounts about the multi-faceted socially valued consequences or structures performed by banks. Our interview data shows that participants reflected on the legitimation challenges brought by the revolution and the limits of transactional strategies involving traditional constituents, with a preference for pursuing consequential and structural forms of moral legitimacy.

This study demonstrates a constructive shift by businesses towards engaging with the new social rules in response to sociopolitical changes and the need to achieve moral legitimacy. Hence, policymakers and stakeholders could consider engaging with different economic sectors to foster more transparent, accountable, and impactful CSR practices.

We highlight the implications of Scherer and Palazzo’s political CSR approach for accountability and CSR reporting. CSR reporting in some developing countries has typically been seen as peripheral or a symbolic exercise primarily concerned with placating stakeholders and/or promoting shareholders’ interests. We suggest that researchers need to be instead attuned to the possibility of a blend of instrumental and normative motivations.

Crops are increasingly affected by drought; hence, the current study explored the potential role of three desert endophytic fungi, Aspergillus fumigatus, Aspergillus terreus and Talaromyces variabilis, in conferring drought tolerance in tomato plants.

Preserved endophytic fungi from a Rhazya stricta desert plant were adopted to obtain the required fungal treatment; tomatoes received fungal treatments directly in plastic trays and subsequently in pots. Drought was applied using 15% of PEG-6000 at two stages: flowering and fruiting. The following parameters were measured: pollen sterility, growth characteristics, morphological analysis and biochemical analysis, including proline, gibberellic acid (GA3) and chlorophyll measurements; thus, the data were analyzed statistically using SPSS software.

All applied endophytes significantly promoted pollen viability and tomato yield under stressed and nonstressed conditions. Interestingly, these endophytes significantly enhanced the number of trichomes under drought stress and promoted tomato fruit quality. The colonized tomato plants accumulated a high proline level under drought stress but lower than un-inoculated stressed plants. Also, a significant rise in growth characteristics was observed by A. fumigatus and A. terreus under normal conditions. Moreover, both raised GA3 levels under drought-stressed and nonstressed conditions. Also these two endophytes enhanced chlorophyll and carotenoid contents under drought stress. Fruit characteristics were enhanced by nonstressed T. variabilis and stressed A. fumigatus.

The present endophytic fungi provide impressive benefits to their host in normal and drought-stressed conditions. Consequently, they represent valuable sources as sustainable and environmentally friendly alternatives to mitigate drought stress.

This study investigates the relationship between leaders' ethical behaviors and internal whistleblowing among hotel employees through the mediation role of organizational virtuousness. According to the conceptual framework, ethical leadership creates a virtuous workplace and encourages whistleblowing.

A survey approach with responses of 442 employees from Egyptian five-star hotels was used. Structural equation modeling (SEM) was used to test the hypotheses proposed based on leader–member exchange (LMX) and ethical leadership theories.

Ethical leadership has a favorable impact on organizational virtuousness and, as a result, has a significant impact on whistleblowing intention. The ethical leaders–subordinates' intents to whistleblow association partially mediated organizational virtuousness. To assist them in reporting ethics violations, most hotel employees require organizational characteristics, such as organizational climate and psychological empowerment, in addition to individual characteristics, such as moral bravery and ethical efficacy.

The conceptual framework of this paper adds a new guide for future research related to the hospitality literature, which is how employees' intent to internal whistleblowing. As such, senior management should serve as a moral role model for hotel employees, inspiring them to be moral and allowing them to participate in decision-making.

本研究擬透過組織德行所扮演的仲介角色，去探討領導者的道德行為與酒店員工間內部舉報的相互關係。根據有關的概念框架，領導倫理會為機構創造一個富有道德的工作場所，以及鼓勵員工互相舉報不當的行為。

研究採用調查方法進行，數據來自442名於埃及五星級酒店工作的僱員的回覆。研究人員以結構方程模型來測試研究的假設 － 研究的假設乃根據領導者－成員交換理論和倫理型領導理論而提出的。

領導倫理會給組織美德帶來積極的影響，因此，領導倫理也會給舉報動機帶來重要的影響。領袖－下屬舉報合夥人合乎道德的動機，對組織美德起著仲介作用。若要酒店僱員舉報違反道德規範的行為，除了僱員須有個人特質、如道德勇氣和倫理效能等之外，酒店亦須具備一些組織特徵、如組織氛圍和心理賦權等。

本研究的概念框架，給探討僱員作內部舉報行為的動機的學者提供新的指引，為餐旅業的研究提供方向。組織的高級管理人員應以身作則，為僱員建立道德典範，鼓勵他們遵循道德規範而行事，並容許他們參與決策。

This study aims to examine whether there are differences between financial statements prepared in accordance with International Financial Reporting Standards (IFRS) and financial statements prepared in accordance with local accounting standards in terms of its ability to present the financial conditions of companies listed on the Saudi Stock Exchange as one of the emerging markets.

Data on study variables were obtained from the published financial statements of 67 of listed companies in the Saudi Stock Exchange during the period 2014–2019. The study addressed the research hypotheses by using Altman Z-score model. Both the T-test and Wilcoxon rank test were used to investigate the significance of differences between the values of Z-score and the individual variables included in the model in the pre- and post-IFRS mandatory adoption periods.

The results revealed a decrease in the values of Z-score as well as the values of the individual variables included in the model in the period following the adoption of IFRS than it was before the adoption of IFRS, which indicates the ability of IFRS to show the financial conditions of companies more transparently than local accounting standards. However, the results of the T-test and Wilcoxon test showed that these decreases were not statistically significant.

This study has some limitations, including the small sample size as a result of the small size of the Saudi Stock Exchange, As well as the reliance of this study only on the Altman model with its five variables in assessing financial conditions without examining the impact of other factors that may affect the financial conditions of companies.

Financial conditions of the companies have important implications for multiple parties such as management, government, investors and others as an early warning sign that enables them to take the necessary measures early before the actual bankruptcy occurs and what results in costs.

Although assessing financial conditions of the companies is one of the basic uses of accounting information, this topic has not received sufficient attention as a means to test the benefits of adopting IFRS, especially in emerging markets such as Saudi Stock Exchange. This is the first study to examine the impact of adopting IFRS on the transparency of financial reporting in assessing financial conditions in Saudi Arabia.

The study aims to assess how corporate branding affects firm performance in the context of the Oman hotel industry, listed on the Muscat Stock Exchange (MSX).

This study approach was made by way of a mixed method. First, it examines qualitative and exploratory information collected from companies’ internet sites, audited annual reports (the financial year 2019) published in MSX, web searches and websites of companies and travel agencies from all the eight listed hotel companies in the MSX to examine the impact of corporate branding on firm performance proxied by return of assets (ROA) and return of equity (ROE) and secondly, it assesses the measurement and structural models by applying partial least squares structural equation modeling (PLS-SEM).

The findings recommend that well-thought-out web marketing on corporate branding by hotel companies leads to firm performance. The findings indicate that corporate branding on travel agency websites and a company’s own website can help businesses become more profitable. In addition, there is a synergistic connection on corporate branding of the hotel industry, including the presentation of a novel hotel narrative, the conception of a cornerstone loyalty program, the demonstration of excellence in hospitality and service, information on timely amenities like Covid-19 safety measures and the use of technology and experiential elements through platforms like the company website or the website of the travel agent all essential to achieve firm financial performance. As per the importance–performance matrix map, websites of travel agents (agoda.com, booking.com and hotels.com) had the importance (agoda.com 0.616, booking.com 0.959 and hotels.com 1.036) to impact companies’ corporate branding and firm performance, whereas Google search shows a value of −1.954, which has no impact on companies’ corporate branding.

The study considered only one hotel/tourism industry to know the effect of corporate branding on firm performance. Further studies may be chosen on other industries needed to allow for generalization.

This study aims to provide insights into how the hotel industry can make use of corporate branding through the company website, Google sites and websites of companies’ travel agency by providing timely updated promotion, facilities, quality services and hygiene matters to enhance firm performance.

This study provides empirical evidence to find various factors of corporate branding of the hotel industry’s firm performance. In addition, the study offers valuable insight into the nonmonetary measures of achievements.

This study aims to examine the economic consequences of the adoption of International Financial Reporting Standards (IFRS) in Saudi Arabia. More specifically, the study examines the impact of the mandatory adoption of IFRS on the accounting-based performance measures.

Data on study variables were obtained manually from the published financial statements of 67 of listed companies in the Saudi stock market during the period 2014–2019. The study addressed the research hypotheses by comparing the accounting-based performance measures computed under the Saudi accounting standards for three years (2014–2016) before the mandatory adoption of IFRS and the corresponding three years (2017–2019) after the mandatory adoption of IFRS. The Mann–Whitney U Test was used to investigate the significance of differences between the values of performance measures in the pre- and post-mandatory adoption periods.

The findings of the study revealed that there were no significant differences between the values of accounting-based performance measures related to the three performance categories (i.e. profitability, liquidity and leverage) in the post-mandatory adoption period (IFRS) compared to the values of these measures in the pre-mandatory adoption period (Saudi accounting standards).

The results of the study indicated that there is a good convergence between the Saudi accounting standards that were implemented before 2017 and the IFRS that began to be applied starting from 2017. This convergence resulted in a low significant impact of IFRS on the financial statements of companies and then on the accounting-based performance measures calculated from them. However, this study suffers from some limitations, the most important of which is the small sample size as a result of the small number of listed companies in the Saudi market during the study period.

Although the impact of the adoption of IFRS have always been a subject of intense research in developed countries, the study of the impact of the adoption of IFRS in developing countries still limited. This study contributes to the literature by examining the economic consequences of adopting IFRS in Saudi Arabia as one of developing countries.

It has been more than 20 years since the idea of binding multinational corporations directly to international law was abandoned. Since then, concerned actors have sought to manage corporate conduct through voluntary regulation. However, little is known about the instruments produced in this regard. This study aims to understand the properties of the instruments that govern or regulate corporate social responsibility at the international level.

Systematic literature review and content analysis methods were combined to compile a list of 229 international corporate social responsibility instruments (ICSRIs) produced by intergovernmental (IGOs) and international nongovernmental (INGOs) organizations. These instruments were categorized according to an adapted classification framework.

The majority of instruments from our sample are produced by INGOs, focus on management activities and are applicable to specific industries. The most common issues addressed by the instruments are related to worker protection, human rights, governance and the environment. A limited number of instruments specify stakeholders’ involvement or feature an external orientation. Instruments rarely address issues related to product quality and safety, economic contribution or social performance.

Without a comprehensive overview, it has been difficult to develop broad-based understandings about voluntary regulation as a mechanism for controlling corporate conduct internationally. This study’s findings offer valuable insights, allowing policymakers and industry practitioners to understand the effectiveness of, and make appropriate enhancements to, ICSRIs.

By enhancing ICSRIs to address the limitations highlighted in the current study, multinational corporations can be induced into contributing more productively to the sustainable development of the societies they impact and play a greater role in the realization of the Sustainable Development Goals.

Previous research has largely concentrated on analyzing small numbers of carefully selected instruments in a conceptual or descriptive approach. In contrast, this study represents a novel approach of systematic compilation and quantitative classification for a comprehensive list of ICSRIs.

In the developing field of nano-materials synthesis, copper oxide nanoparticles (NPs) are deemed to be one of the most significant transition metal oxides because of their intriguing characteristics. Its synthesis employing green chemistry principles has become a key source for next-generation antibiotics attributed to its features such as environmental friendliness, ease of use and affordability. Because they are more environmentally benign, plants have been employed to create metallic NPs. These plant extracts serve as capping, stabilising or hydrolytic agents and enable a regulated synthesis as well.

Organic chemical solvents are harmful and entail intense conditions during nanoparticle synthesis. The copper oxide NPs (CuO-NPs) synthesised by employing the green chemistry principle showed potential antitumor properties. Green synthesised CuO-NPs are regarded to be a strong contender for applications in the pharmacological, biomedical and environmental fields.

The aim of this study is to evaluate the anticancer potential of CuO-NPs plant extracts to isolate and characterise the active anticancer principles as well as to yield more effective, affordable, and safer cancer therapies.

This review article highlights the copper oxide nanoparticle's biomedical applications such as anticancer, antimicrobial, dental and drug delivery properties, future research perspectives and direction are also discussed.

The purpose of this paper was to study the genetic variability, heritability, heat tolerance indices and phenotypic and genotypic correlation studies for traits of 250 elite International Center for Agricultural Research in the Dry Areas (ICARDA) bread wheat genotypes under high temperature in Wad Medani, Center in Sudan.

Bread wheat is an important food on a global level and is used in the form of different products. High temperature associated with climate change is considered to be a detrimental stress in the future on world wheat production. A total of 10,250 bread wheat genotypes selected from different advanced yield trials introduction from ICARDA and three checks including were grown in two sowing dates (SODs) (1st and 2nd) 1st SOD heat stress and 2nd SOD non-stress at the Gezira Research Farm, of the Agricultural Research Corporation, Wad Medani, Sudan.

An alpha lattice design with two replications was used to assess the presence of phenotypic and genotypic variations of different traits, indices for heat stress and heat tolerance for 20 top genotypes and phenotypic and genotypic correlations. Analysis of variance revealed significant differences among genotypes for all the characters. A wide range, 944-4,016 kg/ha in the first SOD and 1,192-5,120 kg/ha in the second SOD, was found in grain yield. The average yield on the first SOD is less than that of the secondnd SOD by 717.7 kg/ha, as the maximum and minimum temperatures were reduced by 3ºC each in the second SOD when compared to the first SOD of the critical stage of crop growth shown.

Similar wide ranges were found in all morpho-physiological traits studied. High heritability in a broad sense was estimated for days to heading and maturity. Moderate heritability estimates found for grain yield ranged from 44 to 63.6 per cent, biomass ranged from 37.8 to 49.1 per cent and canopy temperature (CT) after heading ranged from 44.2 to 48 per cent for the first and secondnd SODs. The top 20 genotypes are better than the better check in the two sowing dates and seven genotypes (248, 139, 143, 27, 67, 192 and 152) were produced high grain yield under both 1st SOD and 2nd SOD.

The same genotypes in addition to Imam (check) showed smaller tolerance (TOL) values, indicating that these genotypes had a smaller yield reduction under heat-stressed conditions and that they showed a higher heat stress susceptibility index (SSI). A smaller TOL and a higher SSI are favored. Both phenotypic and genotypic correlations of grain yield were positively and significantly correlated with biomass, harvest index, number of spikes/m², number of seeds/spike and days to heading and maturity in both SODs and negatively and significantly correlated with canopy temperature before and after heading in both SODs.

Genetic variations, heritability, heat tolerance indices and correlation studies for traits of bread wheat genotypes under high temperature