"Story within story" or "Embedded narrative" is "a combination of narrative sequences such that one sequence is Embedded in another one". Despite the extensive use of this technique, there is no comprehensive source for researchers. Thus, the main aim of this article is to provide a history of Embedded narrative in Persian literature from the beginning to ninth century. Results show an expansive use of this technique in narrative genre; a continuum from fictional to didactic and mystical works. Moreover, on the basis of the role of Embedded narrative in plot, the trilogy kinds of embedding are discovered: instrumental, structural and synthetic.

We call H an SS-Embedded subgroup of G if there exists a normal subgroup T of G such that HT is subnormal in G and HÇT£HsG, where HsG is the maximal s-permutable subgroup of G contained in H. In this paper, we investigate the influence of some SS-Embedded subgroups on the structure of a finite group G. Some new results were obtained.

The demand of self-testing proportionally increases with memory size in System on Chip (SoC). SoC architecture normally occupies the majority of its area by memories. Due to increase in density of Embedded memories, there is a need of self-testing mechanism in SoC design. Therefore, this research study focuses on this problem and introduces a smooth solution for self-testing. In the proposed memory test algorithm, the self-testing as well as self-repair mechanisms are incorporated. This scheme repairs the detected faults and is easily integrated with SoC design. Here, an attempt has been made to implement the memory built-in-self-repair (MBISR) architecture to test and repair the faults from the Embedded memories. It is little, and it supports at-fast test without timing penalty during its operation. The proposed method is a better alternative in speed and low area overhead. Thus, it plays a significant role in yield improvement.

Abu Sahl Wijan (Bizhan) ibn Rustam al-Kuhi the 10th century mathematician and astronomer was from Tabaristn (present Mazandarn) province of Iran. Apart from his rich legacy kept in several manuscripts and studied, edited and translated widely, we know that some of his works have been lost. In this article, Kuhi’s lost mathematical works are traced through references and quotations in the works of other scholars, especially his contemporary al-Sijz, and Kuhi himself.