tsRNA(tRNA-derived small RNAs)是近几年受到高度关注的具有基因调节功能的一类非编码小RNA,其来源于tRNA,且属于tRNA在生理或病理条件下切割后产生的新的小RNA。早期有关tsRNAs结构和功能的研究认为,tsRNAs作为一种RNA损伤后的降解产...tsRNA(tRNA-derived small RNAs)是近几年受到高度关注的具有基因调节功能的一类非编码小RNA,其来源于tRNA,且属于tRNA在生理或病理条件下切割后产生的新的小RNA。早期有关tsRNAs结构和功能的研究认为,tsRNAs作为一种RNA损伤后的降解产物,只是随机的核苷酸序列,本身没有与生理代谢过程相关的结构或功能特性;同时,由于这些small non-cpdomg RNA片段数量太少,推测其对早期胚胎发育并不发挥重要作用。展开更多
We introduce a new class of partially coherent asymmetric array beams. When the beam propagates, the spectral density of each lobe and the corresponding degree of coherence have rotating behavior. Especially, not only...We introduce a new class of partially coherent asymmetric array beams. When the beam propagates, the spectral density of each lobe and the corresponding degree of coherence have rotating behavior. Especially, not only can array-like lattices revolve arbitrarily, but also they can move freely by controlling transverse plane shifts. Furthermore, we have generated this kind of beam experimentally, and the experimental phenomena are consistent with the numerical simulation results. Such a rotating beam with free movement and revolution may broaden the way for optical applications. More importantly, it inspires further studies in the field of asymmetric coherence gratings and lattices.展开更多
文摘tsRNA(tRNA-derived small RNAs)是近几年受到高度关注的具有基因调节功能的一类非编码小RNA,其来源于tRNA,且属于tRNA在生理或病理条件下切割后产生的新的小RNA。早期有关tsRNAs结构和功能的研究认为,tsRNAs作为一种RNA损伤后的降解产物,只是随机的核苷酸序列,本身没有与生理代谢过程相关的结构或功能特性;同时,由于这些small non-cpdomg RNA片段数量太少,推测其对早期胚胎发育并不发挥重要作用。
基金This work was supported by the National Natural Science Foundation of China(Nos.12174338 and 11874321)。
文摘We introduce a new class of partially coherent asymmetric array beams. When the beam propagates, the spectral density of each lobe and the corresponding degree of coherence have rotating behavior. Especially, not only can array-like lattices revolve arbitrarily, but also they can move freely by controlling transverse plane shifts. Furthermore, we have generated this kind of beam experimentally, and the experimental phenomena are consistent with the numerical simulation results. Such a rotating beam with free movement and revolution may broaden the way for optical applications. More importantly, it inspires further studies in the field of asymmetric coherence gratings and lattices.
