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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 study aims to capture the views of executives about the merit of using the two segmentation approaches (quantitative vs qualitative). Furthermore, this study aimed to examine costs and benefits for two different segmentation approaches, using a minimax simple cost-benefit analysis (CBA) matrix.

A total of 16 semistructured interviews were conducted with executives within the University of Sharjah (UoS). Furthermore, a minimax approach was applied to the CBA study.

Evidence in this study found that the financial cost of quantitative segmentation approaches was higher than qualitative approaches. However, the decision-makers trusted the quantitative approach more regardless of the incurred costs. The study also found that there was a limited knowledge about social marketing and segmentation among executives.

Limitations of this study relate to the methodology applied, the sample selected and the lead research. Another factor is selection bias, which limited this study to one organization’s executives. It is conceivable that middle-level management would have had the desire to participate because they make the recommendations to top management in decision-making. The researcher did not collect precise data on time taken to design, implement and analyses the two segmentation studies, which qualified the precision of the CBA. Also, the fact that the sample includes participants from a relatively narrow range of disciplines should be noted as a limitation of the study.

The current study provides a case study demonstrating how CBA provides a dollar amount estimate permitting alternate segmentation approaches to be compared and contrasted, assisting in the value estimation of any social marketing project.

The paper draws upon two streams of the literature: social marketing and CBA. The paper focused on the understanding of the literature, CBA offers a technique applicable to demonstrating cost savings that can be derived from choosing one method over another. Moreover, CBA assists in understanding the benefits or potential opportunity cost both financially and nonfinancially.

This paper presents one of the first studies conducting a CBA to compare and contrast two segmentation approaches in social marketing. The study provides interesting insights into the perceptions of management executives over alternative research methods, although the results are limited to a case study.

Due to the environmental issues caused by petroleum lubricants used in lubrication, the concept of creating various bio-lubricants requires research globally. Thus, this study aims to develop, characterize and test the base ficus carica oil (fig oil) for its ethylene vinyl acetate copolymer (EVA) and sodium dodecylbenzene sulfonate (SDBS) content.

The sample characterization was done using the Fourier transmission infrared spectrum, whereas the morphologies of the EVA, SDBS particles and lubricated surfaces were carried out under scanning electron microscope equipment. To ensure the homogeneity of the solution (base oil and additives), the formulations were subjected to the sonication process. The anti-friction and anti-wear properties of EVA and SDBS particles as lubricant additives were investigated using a ball on a flat high-frequency reciprocating rig tribo-tester.

According to the findings, the base oil’s anti-friction and anti-wear capabilities can be greatly enhanced by the additions. revealed that the best results were obtained when 1.2% EVA + 2% SDBS was applied for the examination of wear (597.8 µm) and friction coefficient (0.106). Commercial references were used, nevertheless, and the results were excellent. This is because the particles in the contact area during lubrication have strong solubility and quickly penetrate the contact zone. The lubricating mechanisms were explained by a tribological model of the EVA + SDBS and SDBS particles.

The coefficient of friction and wear reduction caused by the use of the additives will certainly enhance system performance and protect the machine components from excessive wear that could cause damage or failure.

The originality and uniqueness of this work are officially affirmed by the authors. The authors’ autonomous and original contribution to the development of sustainable lubrication is represented in this work. To the best of the authors’ knowledge, no other study has been published or made publicly available that duplicates the precise scope and goals of our research, and this conclusion is based on a thorough literature assessment.

The purpose of this study is to validate the psychometric properties of the Self-Perceived Employability Scale in the context of the United Arab Emirates (UAE-SPE) and to verify the model fit of the UAE-SPE and University Commitment Scale (UC) (Rothwell et al., 2008) for undergraduate students.

A cross-sectional survey study was carried out to collect the data using a web-based survey tool (Qualtrics) at a public university in the UAE. The sample was 646 undergraduate students.

As a result of the factor analysis, the study validated three factors of SPE for undergraduate students in the UAE that explain their perceptions of their university reputation, their field of study, the state of the UAE labour market and confidence in their skills. Confirmatory factor analysis verified good model fit indices of UAE-SPE and the UC scale. In addition, the study found a statistically significant positive relationship between the UC scale and the three factors of UAE-SPE.

Currently, there is a scarcity of published research on self-perceived employability amongst undergraduate students in higher education institutions in the UAE and the Arab region. This article not only contributes to research on this topic but also validates two scales, allowing cross-cultural comparisons of SPE and UC of undergraduate students in the Arab region and worldwide.

This study aims at investigating the impact of some selected organizational and cultural factors on organizational learning (OL). It also attempts to study the moderating role of management support on the influential relationship between these organizational and cultural factors and OL within the context of Jordanian mining sector (JMS).

A descriptive-analytical approach is applied to collect and analyze the data. A survey questionnaire is used as a primary data collection instrument. The study sample includes 400 participants from the seven selected manufacturing companies within the context of JMS. Smart PLS 3 and IBM SPSS version 25 were applied to answer the study questions and to test the hypotheses.

Organization strategy has a statistical significant impact on OL. Moreover, cultural factors (innovation; teamwork; knowledge sharing) have a significant impact on OL. The results of the moderating variable revealed that the level of management support is not moderating the relationship between organizational factors and OL. Nonetheless, it is revealed that management support is moderating the relationship between organizational culture and OL.

It seems that a continuous management support is an important facilitating feature to motivate a learning culture. Cultural attributes, including innovation, teamwork and knowledge sharing must be taken into consideration as facilitating factors to encourage OL. Gradual changes must be introduced to create innovative, teamwork and knowledge-sharing culture. Additionally, a specific strategic goal should be part of the organizational corporate strategy and action plans must be developed to achieve this goal in a systematic manner.

The inclusion of management support as a moderating factor could add an original contribution to the current body of knowledge concerning OL. Moreover, this study argues that the core concept of learning might be there but a systematic process of learning and the contextual factors influencing this concept still need more concern.

The purpose of this study is to investigate the factors that influence the development of human capital by examining the interplay between different organizational mechanisms, including leadership, organizational culture and human resources management (HRM) practices. This study aims to enhance our understanding of how knowledge exchange influences human capital, with a specific focus on the unique context of Dubai, an area and context that have been underexplored in this research domain.

This study used a survey-based approach, involving 611 participants working across different sectors based in Dubai. This study used partial least squares structural equation modeling as the statistical analysis method.

The results of the study indicate that leadership behaviors have a predictive influence on organizational culture. In turn, organizational culture significantly affects knowledge exchange. Additionally, the study reveals that commitment-based HRM practices play a significant moderating role in the relationship between organizational culture and knowledge exchange.

This study contributes to the existing literature by providing valuable insights into the interplay between leadership, organizational culture and commitment-based HRM practices. By exploring these factors and their influence on knowledge exchange and human capital, the study enhances both the theoretical understanding and practical application in this field.

Traditionally prepared enset-based products like bulla are characterised by low protein and vitamin contents and are highly viscous; this causes protein-energy malnutrition especially in infants and young children. This paper aims to improve the nutritional and sensory qualities of enset-based food with pumpkin and amaranth.

Sixteen formulations of composite flour were generated using a D-optimal constrained mixture design with a range of 50-80 per cent bulla, 10-25 per cent pumpkin and 10-40 per cent amaranth flour. Nutritional and sensory qualities of the formulations were investigated using standard methods.

Ash, fat and protein contents increased from 1.1-2.8 g/100 g (p < 0.001), 1.7-3.9 g/100 g (p < 0.001) and 6.1-9.0 g/100 g (p < 0.001) respectively with the increased amaranth flour. Crude fibre content increased with increasing percentage of the amaranth and pumpkin flours. On the other hand, carbohydrate content increased from 78.2 to 84.3 per cent (p < 0.001) with an increase of bulla flour. A significant increase in Fe, Zn and Ca from 6.8-10.5 (p < 0.01), 1.5-3.0 (p = 0.022) and 1.8-148.5 mg/g (p < 0.001) respectively was achieved with an increase in amaranth ratio in flour. The total carotenoid content increased with increase in the percentage of pumpkin flour. The best sensory attributes of the developed product were around the centre point of the three ingredients.

The study showed that a product with good nutritional value and sensory acceptability could be prepared from enset-based ingredients and the optimal product was obtained by blending 57.8 per cent bulla, 18.9 per cent pumpkin and 23.3 per cent amaranth flour. The enriched flour can have application for snack food preparation.

Management discretion in the decision to reduce payroll costs is an important but under-researched issue in management accounting. The authors leverage the experimental environment to test the role of organizational culture (close vs. distant) and managerial communion (concern for others) along with their interaction with sales decline persistence (one vs. two periods) on planned layoff decisions. The authors find that communal managers are hesitant to downsize employees and that a close organizational culture interacts with one period sales declines to reduce layoffs although the influence of culture is reduced with persistent sales declines. The authors also examine the influence of culture and communion on managers’ preference for pay cuts as an alternative to layoffs. The authors find that a close culture and higher communion are associated with decisions to choose pay cuts over layoffs; however, these costs interact such that managers low in communion in a distant culture express a higher preference for layoffs. These findings illustrate the combined influence of economic, organizational, and dispositional factors on manager decisions about the extent and form of labor cost reductions due to sales declines.

This study aims to evaluate the effect of the installed photovoltaic (PV) systems on the aesthetic perception of the mosque’s architectural form. It also aims to develop a framework for integrating PV cells with the various elements of the building type.

The study adopted a mixed-method approach comprising both qualitative and quantitative techniques for data collection procedures. This includes surveys, literature review, focus groups and an experiment.

The results revealed a negative impact of the building-applied PV panels on people’s perception of the mosque’s architectural form. However, integrating the PV cells with the mosque form was perceived as more aesthetically pleasing. Certain integrating PV strategies integrated more harmoniously with certain mosque styles.

This study is focused on limited styles of one building type. Extra research is needed to explore the differences between the different participated groups.

There is a lack of research that explores the ways the installed PV systems impact the users’ architectural aesthetic perception of the mosque. This study informs the design process and practice and construction industry by highlighting the opportunities PV systems, as a legitimate sustainable energy resource, offers to architects and manufacturers.