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相关概念视频

Conservative Site-specific Recombination and Phase Variation02:53

Conservative Site-specific Recombination and Phase Variation

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Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
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Gene Conversion02:08

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Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
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Crossing Over01:30

Crossing Over

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Crossing over is the exchange of genetic information between homologous chromosomes during prophase I of meiosis I. Genetic recombination gives rise to allelic diversity in the newly formed daughter cells. In humans, crossing over produces genetically distinct haploid egg and sperm cells that undergo fertilization to produce unique offspring. Before cell division starts, the germ cell’s chromosome(s) undergo duplication in the S phase of the cell cycle. As the cells enter prophase I,...
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相关实验视频

Updated: Jun 5, 2025

Functional Surface-immobilization of Genes Using Multistep Strand Displacement Lithography
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Functional Surface-immobilization of Genes Using Multistep Strand Displacement Lithography

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二元复合交叉遗传算法用于定位关键滑动表面.

Wei Qin1, Jiancheng Zhao2

  • 1Chongqing Vocational Institute of Engineering, Chongqing, 402260, China. qinw09@163.com.

Scientific reports
|December 3, 2024
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种新的遗传算法 (RGA-BCC),以有效地找到临界滑动表面和斜坡稳定性分析的最低安全因子. 与其他算法相比,RGA-BCC表现出卓越的性能.

关键词:
临界滑动表面的临界滑动表面安全的安全因素.遗传算法 遗传算法 遗传算法斜坡稳定性的分析.

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Detection of Rare Genomic Variants from Pooled Sequencing Using SPLINTER

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Functional Surface-immobilization of Genes Using Multistep Strand Displacement Lithography

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科学领域:

  • 地质技术工程 地质技术工程
  • 计算力学 计算力学 计算力学
  • 优化算法 优化算法

背景情况:

  • 斜坡稳定性分析对于基础设施安全至关重要.
  • 确定关键滑动表面 (CSS) 和最低安全因子 (Min. F) 是复杂的优化挑战.
  • 现有的方法在确定CSS时可能缺乏效率.

研究的目的:

  • 提出和验证一个实编码的二元复合交叉遗传算法 (RGA-BCC) 定位斜率CSSs.
  • 评估RGA-BCC在斜坡稳定性分析中的效率和性能.
  • 将RGA-BCC与其他优化算法比较,例如微分演化 (DE) 和子搜索算法 (SSA).

主要方法:

  • 开发了一个实编码的二元复合交叉遗传算法 (RGA-BCC).
  • 使用六个基准函数优化了RGA-BCC参数.
  • 应用RGA-BCC与Morgenstern和Price方法结合,从现有文献中分析了五个土壤斜率.
  • 对控制变量和种群大小进行敏感性分析.

主要成果:

  • RGA-BCC有效地确定了分析的土壤斜率的CSS和最低安全因子.
  • 参数设置,特别是控制变量的数量,显著影响CSS确定精度.
  • 斜坡的结构特征影响RGA-BCC的最佳参数设置.
  • 在解决斜率CSS问题上,RGA-BCC的表现优于DE和SSA.

结论:

  • 拟议的RGA-BCC是用于斜坡稳定性分析的有效和高效工具.
  • 仔细考虑控制变量和群体大小,根据斜率特征进行信息,对于准确的结果至关重要.
  • 对于地质工程问题,RGA-BCC比现有的优化方法提供了有前途的进步.