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相关概念视频

Protein Complex Assembly02:41

Protein Complex Assembly

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Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
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Protein Complexes with Interchangeable Parts01:57

Protein Complexes with Interchangeable Parts

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Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
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Formation of Complex Ions03:45

Formation of Complex Ions

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A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
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Complex Power01:14

Complex Power

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Power engineers have introduced the concept of complex power to determine the cumulative effect of parallel loads. This idea plays a crucial role in power analysis because it encompasses all the details related to the power consumed by a specific load.
Complex power is defined as the multiplication of the voltage and the complex conjugate of the current. The magnitude of this power, known as apparent power, is measured in volt-amperes (VA). Notably, the angle of the complex power equates to the...
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Complexation Equilibria: Factors Influencing Stability of Complexes01:09

Complexation Equilibria: Factors Influencing Stability of Complexes

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In complexation reactions, metal cations are the electron pair acceptors, and the ligands are the electron pair donors. The stability of the metal complexes depends primarily on the complexing ability of the central metal ion and the nature of the ligands. Generally, the complexing ability of the metal ion depends on the size and charge of the ion. As the metal ion size increases, the stability of the metal complexes decreases, provided that the valency of the metal ion and the ligands remain...
816
Crystal Field Theory - Octahedral Complexes02:58

Crystal Field Theory - Octahedral Complexes

30.8K
Crystal Field Theory
To explain the observed behavior of transition metal complexes (such as colors), a model involving electrostatic interactions between the electrons from the ligands and the electrons in the unhybridized d orbitals of the central metal atom has been developed. This electrostatic model is crystal field theory (CFT). It helps to understand, interpret, and predict the colors, magnetic behavior, and some structures of coordination compounds of transition metals.
CFT focuses on...
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Updated: Jan 27, 2026

Executing Complexity-Increasing Queries in Relational MySQL and NoSQL MongoDB and EXist Size-Growing ISO/EN 13606 Standardized EHR Databases
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Executing Complexity-Increasing Queries in Relational MySQL and NoSQL MongoDB and EXist Size-Growing ISO/EN 13606 Standardized EHR Databases

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增长顺序-异质的简单复合体.

Mengjun Ding1,2, Jia Yu3, Danillo Barros de Souza4

  • 1State Key Laboratory of Photonics and Communications, Shanghai Jiao Tong University, Shanghai 200241, China.

Chaos (Woodbury, N.Y.)
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概括
此摘要是机器生成的。

本研究介绍了一个不断增长的简化复杂模型,以捕捉具有更高阶相互作用的复杂系统. 该模型生成可定制的结构,具有可调节的功率定律分布,用于通用度.

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Executing Complexity-Increasing Queries in Relational MySQL and NoSQL MongoDB and EXist Size-Growing ISO/EN 13606 Standardized EHR Databases

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科学领域:

  • 复杂系统科学 复杂系统科学
  • 网络科学 网络科学
  • 数学建模的数学建模

背景情况:

  • 传统的图形模型捕捉对交互,但不能代表复杂系统中的更高阶交互.
  • 高阶交互同时涉及多个实体,需要先进的数学框架,如简化复合体.
  • 现实世界的系统往往在相互作用复杂性中表现出异质性,因此需要考虑不同简单维度的模型.

研究的目的:

  • 引入一种新的增长简化复杂模型,该模型包含异质的更高阶相互作用.
  • 分析拟议模型的结构性质,特别是一般化度分布.
  • 为了证明模型在产生具有可调性特征的简化复合体方面的灵活性.

主要方法:

  • 开发了一个不断增长的简单复杂模型,其中从概率分布中取样新的简单的维度.
  • 进行理论分析,得出模型内的面部普遍度分布.
  • 进行数值模拟以验证理论预测并探索新出现的结构性质.

主要成果:

  • 在不断增长的简化复杂模型中,面部的概括度遵循一个权力定律分布.
  • 力量定律分布的指数可以通过调整简单维抽样分布来精确控制.
  • 数字模拟证实了理论发现,并证明了该模型能够生成具有可定制结构的简化复合体.

结论:

  • 提出的不断增长的简化复杂模型为研究具有异质高阶相互作用的系统提供了一个多功能框架.
  • 这种模型允许生成具有可调节结构性质的简化复合体,从而促进对新出现的现象的研究.
  • 这些发现为分析超越对互动的复杂系统提供了新的理论工具.