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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, 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.

Although a large number of Arab countries are members of the World Trade Organisation and the Agreement on Trade‐Related Aspects of Intellectual Property Rights, most of these countries were unable to structure a national intellectual property protection regime which takes into consideration their development plans. The purpose of this paper is to shed light on the history of Arab countries' participation in multilateral trade and intellectual property negotiations and calls for the maximum utilisation by these countries of the intellectual property policy space available to them under international law.

The paper draws from the texts of international agreements and from the available literature on intellectual property. The paper also makes use of various international reports and studies on intellectual property and development.

The paper argues that due to the minimal participation and involvement by Arab countries in international trade and intellectual property negotiations, officials in these countries lacked deep knowledge and understanding about the technical and legal issues engulfing the regulation and implementation of intellectual property. The paper finds that those countries mostly active in negotiations were more able to capitalise on the system and to benefit from the available policy space in terms of national development. Finally, the paper provides recommendations aimed towards enhancing the policy space and utilising intellectual property for development purposes.

These findings are important for policy makers, officials and those interested in understanding the relation between intellectual property protection and development and how developing and Arab countries would be able to maximize the benefits from the international protection regime.

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.

There has been growth in Islamic finance both in Muslim countries and around the world during the last two decades. This has attracted interest of those concerned with combating crime in financial institutions. This article aims to highlight the Shari'ah law's normative framework in addressing the different aspects of financial crime.

The paper is a general discussion of the substantive Islamic law (Koran, Haddiths, etc.) and begins with an introduction of the significance of property in Islam. It then focuses on the Shari'ah perspective on financial crime.

It is found that Islam has stressed and asserted the importance of honesty in business and monetary dealings. Acts negatively affecting the economy are prohibited by Shari'ah under the division of criminal law developed by Islamic jurisprudence.

The paper shows that Islamic law widens the circle of protection against financial crimes.

Extant crisis response literature focuses on the survival and adaptation efforts of organizations, leaving the opportunity of deploying more proactive market-shaping strategies unexplored. This paper aims to examine the early strategic responses deployed by air-travel services players for navigating through the COVID-19 pandemic.

Drawing on a qualitative case study and grounded theory methods, this research analyzes how DUBZ – a purposefully selected company operating in the air-travel services sector in the emirate of Dubai (UAE) – responded to the coronavirus disruption.

Using this unique case as a basis for grounded theorizing, a framework was developed for understanding how air-travel service providers can effectively navigate through the crisis – the guard-potentiate-shape model. The advanced model suggests that in times of disruption, industry players should adopt several strategies to: guard against failure; potentiate innovative change; and shape the future design of air-travel services. An outcome of forward-looking shaping strategies that may define the new post-pandemic normal in the air-travel services sector constitutes the idea of “scattered/diffused airports” with a modified design of airport services architecture.

The insights from the grounded theoretical framework contribute to both the empirical research on crisis management and the nascent literature on market-shaping strategies. Air-travel services organizations may learn how to increase their resilience and build new industry normalcy in the post-disruption period.

迈向后COVID-19时代航空旅游服务行业的常态：用于危机导航的GPS（超前部署）模型

先前的危机应对研究集中于组织的生存和适应性工作, 留下开发出部署更积极的市场塑造策略尚未探索的机会。本文的目的是研究空中旅游服务公司为应对COVID-19大流行而采取的早期战略应对措施。

利用定性的案例研究方法, 本研究分析了在迪拜酋长国（UAE）的航空旅游服务行业中特定的公司如何应对冠状病毒的破坏。

使用这个独特的案例作为理论基础, 开发了一个扎根的理论框架, 用于理解航空旅行服务业者如何有效地渡过危机-GPS（超前部署）模型。先进的模型表明, 在混乱时期, 业者应采取多种策略, 以（1）预防失败, （2）加强创新变革以及（3）塑造航空旅游服务的未来设计。前瞻性塑造策略的结果可能定义了航空旅游服务领域后疫情时代的新常态, 构成了“零散的机场”的概念, 并修改了机场服务体系结构的设计。

来自先进框架的见解有助于进行危机管理的实证研究以及有关战略市场塑造的新兴文献。更广泛地讲, 航空旅行服务组织可能会学习如何在灾后时期提高抵御力并建立新的行业常态。

La industria de los servicios de viajes aéreos posterior al COVID-19: El modelo GPS (Proteger-Potenciar-Modelar) para la navegación en situaciones de crisis

La investigación previa de respuesta a crisis se ha centrado en los esfuerzos de supervivencia y adaptación de las organizaciones, dejando sin explorar la oportunidad de implementar estrategias más proactivas para modelar el mercado. Este documento tiene como objetivo examinar las primeras respuestas estratégicas desplegadas por los actores de los servicios de viajes aéreos para navegar a través de la pandemia de COVID-19.

Basándose en una metodología de estudio de caso cualitativo, esta investigación analiza cómo una empresa seleccionada a propósito, que opera en el sector de servicios de viajes aéreos en el emirato de Dubai (EAU), respondió a la disrupción del coronavirus.

Utilizando este caso único como base para la teorización, se desarrolló un marco teórico fundamentado para comprender cómo los proveedores de servicios de viajes aéreos pueden navegar eficazmente a través de una crisis: el modelo GPS (Proteger-Potenciar-Modelar). El modelo avanzado sugiere que, en tiempos de disrupción, los actores de la industria deben adoptar una serie de estrategias para (1) protegerse contra fallas, (2) potenciar un cambio innovador y (3) modelar el diseño futuro de los servicios de viajes aéreos. Un resultado de las estrategias de formación prospectivas que pueden definir la nueva normalidad pos-pandémica en el sector de los servicios de viajes aéreos constituye la idea de "aeropuertos dispersos" con un diseño modificado de la arquitectura de los servicios aeroportuarios.

Los conocimientos del marco avanzado contribuyen tanto a la investigación empírica sobre la gestión de crisis como a la literatura incipiente sobre la modelación estratégica del mercado. En términos más generales, las organizaciones de servicios de viajes aéreos pueden aprender cómo aumentar su resiliencia y construir una nueva normalidad en la industria en el período posterior a la disrupción.

In this work, the authors are interested in the notion of vector valued and set valued Pettis integrable pramarts. The notion of pramart is more general than that of martingale. Every martingale is a pramart, but the converse is not generally true.

In this work, the authors present several properties and convergence theorems for Pettis integrable pramarts with convex weakly compact values in a separable Banach space.

The existence of the conditional expectation of Pettis integrable mutifunctions indexed by bounded stopping times is provided. The authors prove the almost sure convergence in Mosco and linear topologies of Pettis integrable pramarts with values in (cwk(E)) the family of convex weakly compact subsets of a separable Banach space.

The purpose of the present paper is to present new properties and various new convergence results for convex weakly compact valued Pettis integrable pramarts in Banach space.

In vehicular ad hoc networks (VANETs), the information transmitted is broadcast in a free access environment. Therefore, VANETs are vulnerable against attacks that can directly perturb the performance of the networks and then provoke big fall of capability. Black hole attack is an example such attack, where the attacker node pretends that having the shortest path to the destination node and then drops the packets. This paper aims to present a new method to detect the black hole attack in real-time in a VANET network.

This method is based on capability indicators that are widely used in industrial production processes. If the different capability indicators are greater than 1.33 and the stability ratio (S_r) is greater than 75%, the network is stable and the vehicles are communicating in an environment without the black hole attack. When the malicious nodes representing the black hole attacks are activated one by one, the fall of capability becomes more visible and the network is unstable, out of control and unmanaged, due to the presence of the attacks. The simulations were conducted using NS-3 for the network simulation and simulation of urban mobility for generating the mobility model.

The proposed mechanism does not impose significant overheads or extensive modifications in the standard Institute of Electrical and Electronics Engineers 802.11p or in the routing protocols. In addition, it can be implemented at any receiving node which allows identifying malicious nodes in real-time. The simulation results demonstrated the effectiveness of proposed scheme to detect the impact of the attack very early, especially with the use of the short-term capability indicators (Cp, Cpk and Cpm) of each performance metrics (throughput and packet loss ratio), which are more efficient at detecting quickly and very early the small deviations over a very short time. This study also calculated another indicator of network stability which is S_r, which allows to make a final decision if the network is under control and that the vehicles are communicating in an environment without the black hole attack.

According to the best of the authors’ knowledge, the method, using capability indicators for detecting the black hole attack in VANETs, has not been presented previously in the literature.