搜索结果: 1-15 共查到“理学 D-loop”相关记录167条 . 查询时间(0.121 秒)
南京农业大学农学院《Plant Communications》发表国家大豆改良中心盖钧镒院士和许冬清教授团队“The GmSTF1/2-GmBBX4 negative feedback loop acts downstream of blue light photoreceptors to regulate isoflavonoid biosynthesis in soybean”（图）
大豆改良 盖钧镒 许冬清 生物合成
2023/10/28
次生代谢产物异黄酮是一类主要在豆科植物中合成的多酚类物质。异黄酮不仅利于豆科植物应答生物和非生物胁迫、诱导根瘤形成等，而且对人体具有重要的保健和药用价值，比如预防和治疗癌症、心脑血管疾病和骨质疏松等。大豆是工业化生产异黄酮的重要来源，主要含有12种异黄酮物质及其衍生物。根据其化学结构的差异，可将其分为游离型苷元（aglycone）和结合型糖苷（glycoside）两大类，其中结合型糖苷占异黄酮总量...
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Conformally invariant fields out of Brownian loop soups
布朗环汤 共形 不变场 布朗分布
2023/4/14
For each central charge c\in (0,1], we construct a conformally invariant field which is a measurable function of the local time field \mathcal{L} of the Brownian loop soup with intensity c and i.i.d. ...
中国科学院广州生物医药与健康研究院等揭示SOX2/DDX5与R-loop协同调控体细胞重编程为诱导多能干细胞的新机制（图）
中国科学院广州生物医药与健康研究院 SOX2/DDX5 R-loop 协同调控 体细胞 重编程 多能干细胞
2020/6/12
基因表达调控是决定细胞命运的重要因素，通过改变基因的表达模式即可实现对细胞命运的精准调控。比如运用Yamanaka四个转录因子（Oct4, Sox2, Klf4, c-Myc）在体外就可将体细胞成功重编程为诱导多能干细胞。2020年6月10日，中国科学院广州生物医药与健康研究院/广州再生医学与健康广东省实验室姚红杰课题组联合清华大学生命科学学院孙前文课题组在国际学术期刊Science Advanc...
R-loop是一种由RNA:DNA杂合链和单链DNA组成的特殊核酸结构，在原核和真核生物的基因组中分布广泛且普遍存在。R-loop在很多关键的生物学过程中发挥重要功能，包括染色质修饰、转录调控、DNA损伤修复以及基因组稳定性等，但其如何被精确调控的机制尚不清楚。m6A修饰作为信使RNA上丰度最高的修饰类型，广泛参与哺乳动物的发育、免疫、干细胞更新、脂肪分化、以及肿瘤生成和转移等生命过程。然而，目前...
环路空间，超对称与指标理论研讨会将于2017.7.17-7.21在南开大学陈省身数学研究所举行。
International Workshop on Loop Space, Supersymmetry and Index Theory
International Workshop Loop Space, Supersymmetry and Index Theory
2017/2/15
Chern Institute of Mathematics (CIM) was founded through the initiative of the late Professor Shiing-Shen Chern, who was also the first director of the Institute until 1992. The institute is located i...
Synthesis of a Thymidine Phosphoramidite Labelled with 13C at C6: Relaxation Studies of the Loop Region in a 13C Labelled DNA Hairpin
Thymidine Phosphoramidite Labelled 13C C6 Relaxation Studies 13C Labelled DNA Hairpin
2016/5/20
A thymidine phosphoramidite labelled at C6 with 13C has been synthesized, and incorporated into a synthetic oligonucleotide, d(CGCGT*T*GT*T*CGCG), which adopts a hairpin conformation. NMR relaxation m...
Genetic Diversity and Phylogenetic Analysis of South-East Asian Duck Populations Based on the mtDNA D-loop Sequences
Duck Populations D-loop Region Haplotype Mitochondrial DNA Phylogeny
2016/12/28
The maternally inherited mitochondrial DNA (mtDNA) D–loop region is widely used for exploring genetic relationships and for investigating the origin of various animal species. Currently, domestic duck...
Closed-loop convex analysis of performance limits for linear control systems
Linear control system computer aided control system and design a linear controller convex optimization digital signal processor
2015/8/12
In closed-loop convex analysis and design, the linear controller design problem is reformulated as a convex optimization problem, which may be more easily solved than the problems resulting from conve...
Closed-loop convex formulation of classical and singular value loop shaping
Singular value circulation formation control dynamic systems digital technology application control system design
2015/8/12
We show that control system design via classical loop shaping and singular value loop shaping can be formulated as a closed-loop convex problem. Consequently, loop shaping problems can be solved by ef...
The Microbial Loop
Microbial Loop ocean
2015/7/22
Answering Charles Darwin's prescient question has taken us nearly two centuries. Only in recent decades have methods and concepts been developed to explore the significance of microbes in the ocean's ...
Nonlinear Phase-Locked Loop Design using Semidefinite Programming
Semidefinite Programming Design
2015/6/19
The Phase-Locked Loop(PLL) is a key component of modern electronic communication and control systems. PLL is designed to extract signals from transmission channels. It plays an important role in syste...
Mitochondrial D-loop sequence variation among autochthonous horse breeds in Croatia
mtDNA genetic diversity horse
2015/6/8
Genetic variation in three Croatian coldblood horse populations was analysed using a sequence analysis of the proximal part (nt 15 498?5 821) of the D-loop region of mtDNA. Twenty unrelated horses wer...
Operads, homotopy algebra and iterated integrals for double loop spaces
Operads homotopy algebra iterated integrals double loop spaces
2015/3/25
This paper provides some background to the theory of operads, used in the first author's papers on 2d topological field theory (hep-th/921204, CMP 159 (1994), 265-285; hep-th/9305013). It is intended ...