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EFL learners’ ability to use advanced and varied vocabulary is a crucial issue in writing performance. This study aimed to investigate the effect of writing task type on lexical diversity and sophistication. The relationship between lexical sophistication and lexical diversity in the narrative, argumentative, and descriptive task types written by upper-intermediate EFL learners was also explored. To this end, 70 EFL upper -intermediate learners, enrolled in advanced writing tasks, were selected as the participants. They undertook narrative, descriptive, and argumentative writing tasks in a counterbalanced way. Then, Vocabulary Diversity (Voc-D) and Measure of Textual Lexical Diversity (MTLD) were used to measure lexical diversity. Lexical sophistication was measured using CELEX log frequency and Beyond 2000 Words (K3+). The writings were pasted into Coh-Metrix measure MTLD, Voc-D, and CELEX. VocabProfiler was also used to measure K3+ of the writings. In lieu of the purposes of the study, the research design involved repeated measures and correlation. Using Multivariate Analysis of Variance and Pearson’s Correlation Coefficient, the findings revealed that lexical diversity varied significantly across the three writing tasks. The highest scores of MTLD and Voc-D belonged to the narrative, argumentative, and descriptive writing tasks, respectively. Moreover, EFL learners used more advanced words in argumentative task type according to the measurement of CELEX and K3+ level words. However, learners' lexical sophistication in narrative and descriptive writings did not emerge as significantly different when measured by K3+. The significant positive relationship between lexical sophistication and lexical diversity was evident in all three task types.

Blockchain technology is rapidly gaining the attention of financial institutions around the world, especially among decision makers in Islamic financial institutions who are planning to apply this innovative technology into their institutions activities which could be an upright solution for their issues and challenges. This paper contributes to the emerging literature on financial technology by discussing some of the innovative applications of blockchain in Islamic financial institutions. In addition, this paper sheds light on the main opportunities and challenges facing application of Blockchain Technology in the Islamic financial industry and highlight the way forward to address these issues. Relying on the previous literature and analysis; this paper confirms the enormous opportunities for utilizing blockchain technology in various Islamic financial applications such as Waqf, Zakat and Sukuk. On the other hand, the main challenges towards implementing blockchain in this industry are the complexity of Islamic finance products added to the opacity of its application which end up with unclear regulations and lack of standards.

Christianity and Shiite Islam share the religious nature of marriage as compliance with a divine precept and of the family as a sharing and continuation of the divine will preordained for the creation and multiplication of human beings on the face of the earth. I will not dwell on the institution of marriage itself and I will omit to expound its principles, canons and ethics proper to it. I therefore proceed to immediately lay out the essential outlines that characterize the existential philosophy and the role to which parents are called within the family cell. Of this cell they are not the only protagonists, and it must also be said that the cell itself is not an end in itself: the parents are one with the children and the family is one with the society, civil and religious, in which and with which it evolves, lives its religiosity and ethics, and realizes divine wills. The subject of people who make up the family nucleus in the strict sense and the people who gravitate with different duties and in different capacities around it, such as fathers, mothers, sons, daughters, relatives and servants, is vast and complex in its articulations. This is true both as regards their interpersonal relations and their relations with the community environment in the midst of which they stand as elements of edification and support. Indeed, an exhaustive treatment of the personal roles of individuals constituting the family would in itself require extremely detailed and laborious research. Perhaps in no other field has legalism indulged so much as in the treatment and determination of the rights and duties inherent to the members of the family unit. Not only because of their natural belonging to a tribe, clan and family, but also because of their religious identity as subjects of a revealed law, over whom the dominion of faith prevails, or ends up prevailing, over every other instance of ethical, associative and community order. We therefore propose to outline, below, just a few of the complex religious and human implications of the interpersonal relations that regulate and govern the family institution as it articulates itself and becomes the core of the so-called Islamic community.