Search results

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.

Personality characteristics have a significant impact on the economic segment of women entrepreneurs. Due to gender biases or other factors, women entrepreneurs are fewer in India than in other countries. The purpose of this study is to identify the personality factors and challenges that affect their growth and success.

Logistic regression was used to show the impact of personality characteristics and firm performance and the moderating effect of challenges between personality characteristics and firm performance.

The findings revealed a significant impact of personality factors on firm performance, the absence of moderating effects of challenges and the presence of a mediation effect of enterprise age and enterprise location.

This research will help policymakers adopt policies and plans to reduce obstacles and challenges so that the economic conditions of women’s entrepreneurship can transform.

Women in the 21st century still live in a male-dominated patriarchal society because they face the problem of financial capital.

The results show the impact of personality traits and challenges on the firm performance of women’s entrepreneurship.

The purpose of this paper is to investigate the performance of bio-based lubricants (BBL), namely, palm mid-olein (PMO) enriched with an antioxidant agent, tertiary-butylhydroquinone (TBHQ) and a viscosity improver, ethylene-vinyl acetate (EVA), in journal bearing (JB) applications.

Samples of the BBL were prepared by blending it with TBHQ and EVA at various blending ratios. The oxidative stability (OS) and viscosity of the BBL samples were examined using differential scanning calorimetry and a viscometer, respectively. Meanwhile, their performance in JB applications was evaluated through the use of a JB test rig with a 0.5 length-to-diameter ratio at various operating conditions.

It was found that the combination of PMO + TBHQ + EVA demonstrated a superior oil film pressure and load-carrying capacity, resulting in a reduced friction coefficient and a smaller attitude angle compared to the use of only PMO or VG68. However, it was observed that the addition of TBHQ and EVA to the PMO did not have a significant impact on the minimum oil film thickness.

The results would be quite useful for researchers generally and designers of bearings in particular.

This study used PMO as the base stock, and its compatibility with TBHQ and EVA was investigated in terms of its OS and viscosity. The performance of this treated BBL was evaluated in a hydrodynamic JB.

The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-11-2023-0363/

The purpose of this study is to investigate the influence of enclosure shape on magnetohydrodynamic (MHD) nanofluidic flow, heat transfer and irreversibility in square, trapezoidal and triangular thermal systems under fluid volume constraints, with the aim of optimizing thermal behavior in diverse applications.

The study uses numerical simulations based on a finite element-based technique to analyze the effects of the Rayleigh number (Ra), Hartmann number (Ha), magnetic field orientation (γ) and nanoparticle concentration (ζ) on heat transfer characteristics and thermodynamic entropy production.

The key findings reveal that the geometrical design significantly influences fluid velocity, heat transfer and irreversibility. Trapezoidal thermal systems outperform square systems, while triangular systems achieve optimal enhancement. Nanoparticle concentration enhances heat transfer and flow strength at higher Rayleigh numbers. The magnetic field intensity has a significant impact on fluid flow and heat transport in natural convection, with higher Hartmann numbers resulting in reduced flow strength and heat transfer. The study also highlights the influence of various parameters on thermodynamic entropy production.

Further research can explore additional geometries, parameters and boundary conditions to expand the understanding of enclosure shape effects on MHD nanofluidic flow and heat transfer. Experimental validation can complement the numerical simulations presented in this study.

This study provides valuable insights into the impact of enclosure shape on heat transfer performance in MHD nanofluid flow systems. The findings contribute to the optimization of thermal behavior in applications such as electronics cooling and energy systems. The comparison of different enclosure shapes and the analysis of thermodynamic entropy production add novelty to the study.

The purpose of this study is to examine the management of cash waqf fund generation through the implementation of istibdal in Kedah.

The data are obtained through literature and empirical data. The authors first review the literature on the importance of waqf fundraising, the implementation factors of istibdal waqf and the relevance of istibdal method as a waqf fund generation medium to understand the extent to which the scholarly articles have discussed these topics. Furthermore, the authors conducted face-to-face interviews with two Kedah Islamic Religious Council (Majlis Agama Islam Kedah [MAIK]) officers, who were directly involved in the affairs of istibdal waqf to obtain holistic information regarding implementing istibdal waqf properties in Kedah. As a result, several themes are defined from the interview data before being analysed based on the content analysis method.

The results of the study show two istibdal implementation processes outlined by the Kedah Islamic Religious Council (MAIK), namely, the istibdal implementation process for waqf land registered title deed, and waqf land registered as reserve certificate for religious use like mosque and cemetery. The results also showed three factors in implementing istibdal in Kedah: the acquisition of waqf land by the state authority (PBN), istibdal application by the state education department (JPN) and istibdal application by the mosque committee. Out of eight cases of istibdal implementation, four have generated cash funds for MAIK through investment methods from the sale of waqf lands and rental of replaced shophouses that are able to cover the expenses of managing waqf properties in Kedah. Several suggestions are also recommended for MAIK to improve its istibdal policy, thus enabling the institution to generate cash waqf funds at the maximum rate.

This study only focused on the implementation factors and the generation of cash waqf funds through istibdal in Kedah, while it can be expanded to other states like Terengganu, Kelantan and Penang. Furthermore, this study only interviewed officers who manage matters related to the affairs of waqf properties, as the session can actually be extended to other respondents, such as those specialising in cash fund generation investments and others.

This study proposed some improvements to the policy and guidelines of istibdal waqf property to MAIK after a few shortcomings were identified throughout this study. If improved, these proposals will have a significant impact, especially on the waqf properties involved in the implementation of istibdal, where it has the potential to bring cash generation and ensure the constant economic value of waqf properties.

This study has a tremendous impact on society, in which their areas have cash waqf funds that can be developed. It can benefit the needy and increase funds for the welfare expenditure of Muslims through rental income, investment and development. Progress on waqf property provides a high indication of the efficiency of an organisation in managing the waqf property. Thus, the public, especially the rich, is motivated to fulfil their charitable practices through waqf mechanism and share their wealth with the needy.

This study contributes to comprehensive field data on the implementation factors and generation of cash waqf funds through the implementation of istibdal in Kedah. The results of this study are significant to be used by waqf property management.

This study aims to conceptualize and investigate the relationships between halal entrepreneurial success, innovation capability and sustainable innovation in the halal industry.

Both integrative and generative approaches are combined to move forward from the literature to a theoretical contribution. The paper presents a model that relates halal entrepreneurial success to innovation capability and sustainable innovation. A purposive sample of 340 Malaysian halal entrepreneurs is used to test the conceptualized model. The partial least square technique was then used to assess the structural model.

The results disclosed that halal entrepreneurial success is positively related to both innovation capability and sustainable innovation. Also, the innovation capability mediates the relationship between halal entrepreneurial success and sustainable innovation.

This research conceptualized and examined a novel model that assesses the relationships between halal entrepreneurial success, innovation capability and sustainable innovation in the halal industry.