Regulatory mechanisms of long non-coding RNAs

Long non-coding RNAs(lncRNAs) belong to a large and complex family of RNAs, which play many important roles in regulating gene expression. However, the mechanism underlying the dynamic expression of lncRNAs is still not very clear. In order to identify lncRNAs and clarify the mechanisms involved, we collected basic information and highlighted the mechanisms underlying lncRNA expression and regulation. Overall, lncRNAs are regulated by several similar transcription factors and protein-coding genes. Epigenetic modification(DNA methylation and histone modification) can also downregulate lncRNA levels in tissues and cells. Moreover, lncRNAs may be degraded or cleaved via interaction with miRNAs and miRNAassociated protein complexes. Furthermore, alternative RNA splicing(AS) may play a significant role in the post-transcriptional regulation of lncRNAs.

LUT应用于快速确定CDMA长码状态的性能分析

介绍了一种基于LUT表的CDMA长码状态快速算法,并与传统的MSRG结构或SSRG结构CDMA长码状态算法进行了比较和分析。通过将部分运算结果预先存储在LUT表中,新方法将巨大的运算量(最多可能出现242-1次的长码发生器运算)降为不超过4242次长码发生器操作和42次4242阶矩阵模2相乘运算,极大地提高了确定当前时刻长码状态的实时性能。

一种基于二进制矩阵的CDMA长码状态快速算法

本文介绍了一种基于二进制矩阵迭代运算的确定当前时刻CDMA长码状态的快速算法 ,对其性能进行了仿真和分析 .与传统的MSRG结构或SSRG结构的CDMA长码状态算法的运算量相比较 ,新方法将巨大的运算量 (可能出现 2 42 - 1次的长码发生器运算 )降为不超过 4 2× 4 2次长码发生器运算和 4 2次 4 2× 4 2阶矩阵模 2相乘运算 ,极大的提高了确定当前时刻长码状态的速度 ,在基本不增加硬件复杂性的基础上 。