0 for double loop in R 3 R Double For Loop 2 Two for loops in R 2 Repeating a for loop in R 1 for loops in R programming 0 Double for loop in R 1 doing for loop in R 0 R multiple for loop 0 How to do a double loop in R? 0 Double (nested) FOR loop in R...
# In R 2.13.1, this took 500 ms f <- function() { sum<-0.5; for(i in 1:1000000) sum<-sum+i; sum } system.time( f() ) # And the compiled version took 130 ms library(compiler) g <- cmpfun(f) system.time( g() ) @Gavin Simpson: Btw, it took 1162 ms in S-Plus......
If we don’t place a break condition in the repeat loop statement, the statements in the repeat block will get executed in an infinite loop. While Loop A while loop is one of the control statements in R programming which executes a set of statements in a loop until the condition (the B...
尽管着丝粒R-loops对于着丝粒的组装和功能很重要,但它们也是复制压力的来源。在S期,需要CENPA抑制着丝粒的转录和R-loops形成,从而保护着丝粒免受DNA损伤。因此,着丝粒R-loops对着丝粒具有双面影响,并且着丝粒R-loops及其相关蛋白的水平可能在细胞周期中错综复杂地变化。 DNA复制时产生的杂交链 与复制相关的RNA-DNA杂合链最...
The assumption that di-interstitial atom pairs are stable against thermal dissociation is examined and found to be appropriate for the conditions used in this work.doi:10.1016/0022-3115(75)90042-2M.R. HaynsElsevier B.V.Journal of Nuclear Materials...
R-loops是一种含RNA-DNA杂合体的三链结构,经常在转录中形成。R-loop的错误调控与DNA损伤、转录延伸缺陷、过度重组和基因组不稳定性有关。与这种非计划的R-loops形成对比的是:越来越多的证据表明,细胞利用有计划的调节性R-loops中的RNA-DNA杂交体来促进DNA事件,包括转录终止和基因调控的事件、端粒稳定性和DNA修复...
Z Zhang, CMOS phase-locked loops in ISSCC 2023[J]. J. Semicond., 2023, 44(5), 050205. doi: 10.1088/1674-4926/44/5/050205 高性能锁相环(PLL) 广泛用于现代系统级芯片 (SoC),包括超高速无线/有线通信(例如 5G/6G 收发器、超过 100 Gbps SerDes 收发器)、高分辨率毫米波雷达、超低功耗物联网...
Collisions between the DNA replication machinery and co-transcriptional R-loops can impede DNA synthesis and are a major source of genomic instability in cancer cells. How cancer cells deal with R-loops to proliferate is poorly understood. Here we show t
A.the flow of goods and the flow of services.B.the flow of dollars and other financial flows.C.inputs into production processes and outputs from production processes.D.the flows of inputs and outputs and the flow of dollars.相关知识点: 试题...
Physical interactions between distal regulatory elements have a key role in regulating gene expression, but the extent to which these interactions vary between cell types and contribute to cell-type-specific gene expression remains unclear. Here, to addr