agc036D - Negative Cycle 题目大意题解过于巧妙关键点:无负环=差分约束有解由于有i->i+1的0边,所以fi>=fi+1,又因为边的绝对值不超1,所以fi<=(fi+1)+1设f[i][j]表示当前f相同的段是[j+1,i],枚举下一段结尾k转移,负边不能连同一个块,正边只能连同块和相邻两个块的code#include <bits/stdc+...
AtCoder AGC036D Negative Cycle (图论、DP) 题目链接https://atcoder.jp/contests/agc036/tasks/agc036_d题解这都是怎么想出来的啊。。目瞪口呆系列。。第一步转化至关重要: 一张图中不存在负环意味着什么? 不存在负环就存在最短路,我们可以给每个点分配一个权值pipi(相当于从11号到该点的最短路,点从...
Fig. 5 Expression of NCAPD2 in tumor tissues detected by immunohistochemical S-P staining A: NCAPD2 protein expression was negative in normal tissues (-);B: Weak positive staining of NCAPD2 in glioma tissue (+);C: Positive st...
dTMP imbalance through thymidylate 5′-phosphohydrolase activity induces apoptosis in triple-negative breast cancers Dae-Ho Kim, Jin-Sook Kim, Chang-Soo Mok, En-Hyung Chang, Jiwon Choi, Junsub Lim, Chul-Ho Kim, Ah-Reum Park, Yu-Jeong Bae, Bong-Seong Koo & Hyeon-Cheol Lee...
depositional cycle 沉积旋回depositional dip 原始倾斜;最初倾斜角depositional edge 沉积边沿depositional environment 沉积环境depositional fault 同生断层depositional form 沉积地形depositional fractionation 沉积分异depositional framework 沉积格架depositional gradient 原始沉积倾斜度depositional history 沉积史depositional ...
在正常血钙浓度下(9.5mg/dl),肾脏组织中1α羟基化酶与24羟基化酶均具有活性,因此既能够合成1,25(OH) 2 D,也能够合成24,25(OH) 2 D,活性维生素D的产生和降解达到平衡,而血清钙浓度降低时,刺激1α羟基化酶的活性增加,而当血清钙浓度较高时明显抑制此酶活性,由此可以调节1,25(OH) 2 D的合成量。1,25(...
pENTR™/D-TOPO™ 克隆试剂盒利用高效的 5 分钟克隆策略(“TOPO™ 克隆”)将平末端 PCR 产物定向克隆成为进入 Gateway™ 系统或 MultiSite Gateway™ 系统的载体。平末端 PCR 产物以高于 90% 的效率定向克隆,不需连接酶、PCR 后程序或限制性内切酶。该试剂盒包含克隆和选择关注的 PCR 扩增基因所需的...
cycle/‘saikl/n自行车,循环 必备短语 C callafter追在…的后面叫喊 callback叫回来,收回(错话等) callfor要求,需要,提倡 callforth唤起,引起 callin收回(某物) calloff叫走,叫开;取消 callon访问;号召;呼吁 callup征召(服役),动员 cannotbut不得不,不会不 cannothelp不得不;忍不住 cannothelpbut不得不(接...
dot cycle 点循环;基本信号周期dot dash line 点划线dot density 点密度dot frequency 点频率dot grid 点网格dot image 点子象dot line 虚线dot map analysis 点图分析dot mark 点号dot matrix 点阵dot mode 点式dot of light 光点dot pattern 光点图形dot product 点积dot type 打点式dot 方位定向工具dot 深海...
The SDS software v.2.2 (Applied Biosystems) was used to calculate the quantification cycle (Cq) value. Real-time quantification data were averaged between replicates and relative amount of DNA was calculated with the Cμ constant fragment quantification as the reference, using the delta Cq method ...