Nowadays, the whole world is facing a pandemic situation in the form of coronavirus diseases. In connection with the spread of COVID-19 confirmed cases and deaths, various researchers have analysed the impact of temperature and humidity on the spread of coronavirus. In this paper, a deep transfer learning-based exhaustive analysis is performed by evaluating the influence of different weather factors, including temperature, sunlight hours, and humidity. To perform all the experiments, two data sets are used: one is taken from Kaggle (...) consists of official COVID-19 case reports and another data set is related to weather. Moreover, COVID-19 data are also tested and validated using deep transfer learning models. From the experimental results, it is shown that the temperature, the wind speed, and the sunlight hours make a significant impact on COVID-19 cases and deaths. However, it is shown that the humidity does not affect coronavirus cases significantly. It is concluded that the convolutional neural network performs better than the competitive model. (shrink)

This book is the first comprehensive attempt to explain Ibn ‘Arabî’s distinctive view of time and its role in the process of creating the cosmos and its relation with the Creator. By comparing this original view with modern theories of physics and cosmology, Mohamed Haj Yousef constructs a new cosmological model that may deepen and extend our understanding of the world, while potentially solving some of the drawbacks in the current models such as the historical Zeno's paradoxes of motion and (...) the recent Einstein-Podolsky-Rosen paradox (EPR) that underlines the discrepancies between Quantum Mechanics and Relativity. (shrink)

Hermeneutics; philosophical aspects; knowledge, theory of; philosophy, modern; 20th century.

Logical thinking; criticism and interpretation; Arab philosophers.

Historiography; historians; Arab countries.

Mu'tazila and Shīʿa (Zaydiyya-Imāmiyya) have common views on many theological issues except the imamate. This issue has been generally accepted by other Islamic scholars rather than Shīʿa and by Western researchers. That in this interaction between the Mu‘tazila and the Shīʿa, the Shīʿa is the side mostly affected. However, it is an issue that should not be overlooked that the Shīʿa partially influenced the Mu'tazila in ʿAlī b. Abī Ṭālib, over the other Companions. In this context, some persons from the (...) Baghdad Mu’tazila School such as Bishr b. al-Muʿtamir (d. 210/825), Jaʿfar b. Mubashir (d. 234/848), Jaʿfar b. Harb (d. 236/850) and al-Iskāfī (d. 240/854) argued that the imamate of Abū Bakr, who was less virtuous, was permissible although they considered ʿAlī as the most virtuous person after the Prophet. In addition, al-ʿAllāf (d. 235/849-850), al-Naẓẓām (d. 231/845), Abū Abdullah al-Basrī (d. 369/979-80) and Qāḍī ʿAbd al-Jabbār (d. 415/1025) along with Abū ʿAlī al-Jubbāʾī (d. 303/916), one of the chiefs of the Basra Mu'tazila School, and Abū Hāshim al-Jubbāʾī (d. 321/933) did not accept the order of caliphate as the order of virtue. This study focuses on the issue of whether the aforementioned affinity between Mu'tazila and Shīʿa affected Mu'tazila, especially in the interpretation of the verses associated with ʿAlī. In the study, the aforementioned problem was examined through the tafsīr al-Kashshāf of the Muʿtazilī mufassir al-Zamakhsharī (d. 538/1144). In addition to the importance of tafsīr, the fact that al-Zamakhsharī took lessons from Shīʿīte/Zaydī persons and he wrote the tafsīr with the support of Zaydī leader al-Wahhās (d. 506/1112) is effective in handling this issue through al-Kashshāf's tafsīr. In the first part of the study, first of all, the interaction between Imāmiyya and Zaydism, which are the two most important branches of Mu‘tazila and Shīʿa, is briefly mentioned. Then, Mu'tazila’s and Al-Zamakhsharī’s view on ʿAlī's position among other caliphs is emphasized. Al-Zamakhsharī, who is from the Basra school of the Mu'tazila, does not consider ʿAlī b. Abī Ṭālib superior to Abū Bakr, unlike al-ʿAllāf, Abū ʿAlī al-Jubbāʾī, Abū Hāshim al-Jubbāʾī and Qāḍī ʿAbd al-Jabbār, who are the leading figures of this school. In fact, the fact that he always observed the order of the caliphate while talking about the merits of the four caliphs supports the possibility that, unlike his predecessors, he accepted the order of the caliphate as the order of virtue. In the second part, it is questioned whether the narrations that al-Zamakhsharī included in his tafsīr of the verses associated with ʿAlī are similar to the narrations of the Shīʿīte/Zaydī/Imāmī tradition and whether he interpreted the verses in parallel with these narrations. In this respect, the tafsīr al-Kashshāf has been examined comparatively with the Sunni and Shiite tafsīrs prior to it. Eventually, while interpreting these verses associated with the Ahl al-bayt (members of the Prophet’s household), al-Zamakhsharī highlights the narrations that appreciate the virtues of ʿAlī b. Abī Ṭālib and his child. However, he also refrains from making comments that would be in line with the Shīʿa's belief in imamate. In particular, his tafsīr of the verse al-Aḥzāb 33/33 in the context of the Prophet’s wives is the greatest indicator of this situation. It has been determined that while al-Zamakhsharī includes the narrations highlighting the virtue of ʿAlī b. Abī Ṭālib and his children, he mostly follows the Sunni commentator al-Thaʿlabī. In particular, it has been seen that al-Zamakhsharī transferred the narration material in the interpretation of the relevant verses from al-Thaʿlabī's commentary almost in the same way. However, it is noteworthy that al-Zamakhsharī differs from him in some details such as linguistically supporting these narrations in some verses such as ʾĀli ʿImrān 3/61 and al-Māʾidah 5/55. An indirect influence can be mentioned because al-Thaʿlabī frequently narrates the narrations supporting the Shīʿītes in places where there is a Sunni-Shīʿīte conflict. Therefore, although there is no evidence that al-Zamakhsharī took these narrations from Shīʿīte sources, it is seen that he brought ʿAlī b. Abī Ṭālib-based narrations in Sunni sources into the fore. Even in the commentary of al-Ḥākim al-D̲h̲us̲h̲amī, al-Zamakhsharī's teacher in the line of Zaydi/Mu'tazili, the lack of Ali emphasis in the interpretation of the aforementioned verses supports our view. (shrink)

Ethical considerations, especially those religiously driven, play a significant role in shaping business conduct and priorities. Profit levels and earnings constitute an integral part of business considerations and are relevant and closely linked to prevailing ethics. In this paper, Islamic prescriptions on profit maximization are introduced. Islamic business ethics are outlined as well. It is suggested that while Islamic teaching treats profits as reward for engaging in vital activities necessary for serving societal interests, profit maximization is not sanctioned and therefore (...) should not be the goal of ethically guided business ventures. (shrink)

Financial literacy has gained much attention amongst scholars, policymakers and other stakeholders due to its role in backing up investment decisions, improving personal financial management and increasing financial wellbeing. This study examines the influence of financial literacy on investment decisions with the moderating effect of the overconfidence behavioural bias. Data were collected from 180 respondents in Saudi Arabia using a questionnaire, and a convenience sampling technique was applied. The study’s findings were analysed using the partial least squares structural equation modelling (...) technique. It was found that financial literacy positively and significantly influenced investment decisions. Moreover, the results show that overconfidence positively affected investment decisions and that the relationship between financial literacy and investment decisions was positively and significantly moderated by overconfidence. (shrink)

Unmanned aerial vehicles, particularly quadcopters, have several medical, agriculture, surveillance, and security applications. However, the use of this innovative technology for civilian applications is still very limited in low-income countries due to the high cost, whereas low-cost controllers available in the market are often tuned using the hit and trial approach and are limited for specific applications. This paper addresses this issue and presents a novel proof of concept low-cost quadcopter UAV design approach using a systematic Model-Based Design method for (...) mathematical modeling, simulation, real-time testing, and prototyping. The quadcopter dynamic model is developed, and controllers are designed using Proportional Integral, and Derivative, Pole Placement, and Linear Quadratic Regulator control strategies. The stability of the controllers is also checked using Lyapunov stability analysis. For verification and validation of the design, Software-in-the-Loop, Processor-in-the-Loop, Hardware-in-the-loop testing, and Rapid Control Prototyping have been performed. The V&V methods of the MBD approach showed practically valid results with a stable flight of the quadcopter prototype. The proposed low-cost POC quadcopter design approach can be easily modified to have enhanced features, and quadcopters with different design parameters can be assembled using this approach for a diverse range of applications. (shrink)

We examined the direct and indirect (via relational social capital) relationship between ethical leadership and knowledge hiding. We also tested the moderating role of instrumental thinking in the relationship between ethical leadership and knowledge hiding and the relationship between ethical leadership and relational social capital. Data were collected from 245 employees in different firms spanning different manufacturing and service sectors. The results showed that ethical leadership was negatively related to knowledge hiding, both directly and via relational social capital. The results (...) revealed that instrumental thinking moderated the positive relationship between ethical leadership and relational social capital, such that the relationship was weak when instrumental thinking was high. The results also showed that instrumental thinking moderated both direct and indirect relationships between ethical leadership and knowledge hiding, such that the relationships were weak when instrumental thinking was high. The study carries important practical implications for managers concerned about the destructive consequences of knowledge hiding. (shrink)

The study examined the effect of celebrity attractiveness, celebrity trustworthiness, and celebrity cause fit on the attitude toward green cosmetics. This was followed by the effect of brand awareness, brand associations, brand loyalty, perceived quality, brand credibility on brand equity, including the impact of attitude toward green cosmetics and brand equity on the willingness to purchase green cosmetics among of young Chinese consumers. This study adopted a cross-sectional design and collected quantitative data from 301 respondents using a structured questionnaire, which (...) was distributed online using various social media platforms. It was found that celebrity attractiveness, celebrity trustworthiness, and celebrity cause-fit had a significant impact on the attitudes toward green cosmetic, while brand loyalty, perceived quality, and brand credibility substantially affected brand equity. Moreover, the attitudes toward green cosmetics and brand equity had a strong impact on the willingness to purchase green cosmetics. To increase the sales for green cosmetics, the advertisements for it should have appeal, trustworthiness, and cause-fit celebrities to improve consumers’ attitudes and willingness to purchase green cosmetics. Finding of this study provide a guideline for green cosmetic manufacturers, to direct their resources to enhance brand loyalty, credibility, and perceived quality of the product they produce by highlighting the difference between conventional and green cosmetics. (shrink)

This study examined the impact of selected personality traits—innovativeness, internal locus of control, need for achievement and propensity to take risks—on the entrepreneurial intention of Saudi students. The study sample included 165 students from an applied college affiliated with King Faisal University. The participants completed an online self-administered questionnaire, the data from which were analyzed using the partial least squares structural equation modeling method. The findings revealed that the characteristics of innovativeness, internal locus of control and propensity to take risks (...) had a positive relationship with entrepreneurial intention. However, the need for achievement had no relationship with entrepreneurial intention. The study model predicted approximately 25% of the total variance in entrepreneurial intention. It is recommended that in future studies, the sample size should be increased and the scope of the study should be broadened. (shrink)

Institutions significantly impact people’s attitudes and behaviors, both favorably and negatively. The purpose of this article is to examine the influence of several institutions on the intentions and decisions of Saudi entrepreneurs to start a business. Accordingly, the study on which this article is based used cross-sectional data of 3,376 respondents obtained from the Global Entrepreneurship Monitor in 2016. The findings demonstrated that insufficient business legislations and policies have a detrimental impact on the ability to start small businesses. Furthermore, it (...) was discovered that the more media attention is given to successful entrepreneurs, the greater the likelihood of small businesses being established. Surprisingly, the typically high regard for successful entrepreneurs had no positive impact on the establishment of small businesses in Saudi Arabia. Moreover, there was no negative impact of fear of failure on the likelihood of starting small firms. Finally, the influence of control variables, such as age and gender, was also varied. Because the study was limited to the context of Saudi Arabia, future research could focus on expanding the analysis to other Gulf countries and including more institutions. (shrink)

Internet-enabled technologies have provided a way for people to communicate and collaborate with each other. The collaboration and communication made crowdsourcing an efficient and effective activity. Crowdsourcing is a modern paradigm that employs cheap labors for accomplishing different types of tasks. The task is usually posted online as an open call, and members of the crowd self-select a task to be carried out. Crowdsourcing involves initiators or crowdsourcers, the crowd, crowdsourcing task, the process, and the crowdsourcing platform where requesters offer (...) various tasks and crowd workers complete these tasks. As the crowdsourcing is carried out in the online environment, it gives rise to certain challenges. The major problem is the selection of crowd that is becoming a challenging issue with the growth in crowdsourcing popularity. Crowd selection has been significantly investigated in crowdsourcing processes. Nonetheless, it has observed that the selection is based only on a single feature of the crowd worker which was not sufficient for appropriate crowd selection. For addressing the problem of crowd selection, a novel “ant colony optimization-based crowd selection method” is presented in this paper that selects a crowd worker based on multicriteria features. By utilizing the proposed model, the efficiency and effectiveness of crowdsourcing activity will be increased. (shrink)

Philosophical writings on thought and reality.

Islamic ethics in the light of Qurʼanic teaching and Hadith; Customs and practices.

> Wealthy nations must do much more, much faster. The United Nations General Assembly in September 2021 will bring countries together at a critical time for marshalling collective action to tackle the global environmental crisis. They will meet again at the biodiversity summit in Kunming, China, and the climate conference 26) in Glasgow, UK. Ahead of these pivotal meetings, we—the editors of health journals worldwide—call for urgent action to keep average global temperature increases below 1.5°C, halt the destruction of nature (...) and protect health. Health is already being harmed by global temperature increases and the destruction of the natural world, a state of affairs health professionals have been bringing attention to for decades.1 The science is unequivocal; a global increase of 1.5°C above the preindustrial average and the continued loss of biodiversity risk catastrophic harm to health that will be impossible to reverse.2 3 Despite the world’s necessary preoccupation with COVID-19, we cannot wait for the pandemic to pass to rapidly reduce emissions. Reflecting the severity of the moment, this editorial appears in health journals across the world. We are united in recognising that only fundamental and equitable changes to societies will reverse our current trajectory. The risks to health of increases above 1.5°C are now well established.2 Indeed, no temperature rise is ‘safe’. In the past 20 years, heat-related mortality among people aged over 65 has increased by more than 50%.4 Higher temperatures have brought increased dehydration and renal function loss, dermatological malignancies, tropical infections, adverse mental health outcomes, pregnancy complications, allergies, and cardiovascular and pulmonary morbidity and mortality.5 6 Harms disproportionately affect the most vulnerable, including children, older populations, ethnic minorities, poorer communities and those with underlying health problems.2 4 Global heating is also contributing to the decline in …. (shrink)