درخت حوزه‌های تخصصی

Trust establishment (TE) among sensor nodes has become a vital requirement to improve security, reliability, and successful cooperation. Existing trust management approaches for large scale WSN are failed due to their low cooperation (i.e., dependability), higher communication and memory overheads (i.e., resource inefficient). This paper provides a new and comprehensive hybrid trust estimation approach for large scale WSN employing clustering to improve cooperation, trustworthiness, and security by detecting selfish sensor nodes with reduced resource (memory, power) consumption. The proposed scheme consists of unique features like authentication based data trust, scheduler based node trust, and attack resistant by giving the high penalty and minimum reward during node misbehavior. A task scheduling mechanism is employed for scheduling the significant task to reduce computation overhead. The proposed trust model would be capable to provide security against blackhole attack, grey hole attack, and badmouthing attack. Moreover, the proposed trust model feasibility has been tested with MATLAB. Simulation results exhibit the great performance of our proposed approach in terms of trust evaluation cost, prevention, and detection of malicious nodes with the help of analyzing consistency in trust values and communication overhead.

In education, the terms “assessment” and “motivation” seem paradoxical. However, a closer examination of the two terms leads to the understanding that the two terms can conceptually be aligned. Assessment for Learning (AfL) and teachers’ Motivational Strategy (MotS) can be synergized using AfL pedagogical principles that purportedly foster students’ motivation. The dearth of studies juxtaposing both constructs prompted us to examine the AfL practices of seven higher-education teachers in Indonesia, with the aim of providing empirical data on the convergence between AfL and MotS. Set against the backdrop of a low-motivation context, namely the emergency remote learning and teaching English as a Foreign Language (EFL) writing, the teachers were interviewed regarding their AfL practices, and the data was examined using principally deductive qualitative analysis. The results showed that the greatest alignment occurred in the “maintain” stage of MotS, where teachers provided a supportive classroom environment where mistakes are a natural part of learning and involved students in self and peer assessment. On the other hand, the constrained context resulted in divergent conceptions in the teachers of what they perceived as motivating for the students. This implies the need for EFL writing teachers to integrate AfL and various stages of motivational strategies to lead to more engagement and help students improve their writing achievement.  

This paper discusses some key points in the philosophical, political and economic thought of the famous Indian Muslim poet Dr. Mohammad Iqbal. Iqbal sought to reform the Muslim identity and the wider Islamic world in order to deal with the Western challenge. He was deeply perturbed by the ideological domination of the East by the West in the political, cultural and social spheres. His political and economic perceptions, as indicated in his poems, seek to revive the self-confidence and creativity in the Muslim Ummah (Community). Iqbal exhorts the Muslims to realise their identity and selfhood (Khudi) to confront the Western challenge. Iqbal’s politico-economic thought is tinged with his dislike of capitalism and colonial rule. As an anti-dote to these elements, Iqbal speaks positively of socialism and its main proponents in the late nineteenth and early twentieth century although he rejects the atheistic form of socialism. Iqbal also purposes a reconstruction of Islamic thought in order to make it compatible with the demands of the modern world. All in all, Iqbal’s philosophy reveals an eclectic mixture of Islamic modernism, anti-imperialism, pan-Islamism and a desire for a socially equitable society within an Islamic framework.