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相关概念视频

Intracellular Signaling Cascades01:24

Intracellular Signaling Cascades

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Once a ligand binds to a receptor, the signal is transmitted through the membrane and into the cytoplasm. The continuation of a signal in this manner is called signal transduction. Signal transduction only occurs with cell-surface receptors, which cannot interact with most components of the cell, such as DNA. Only internal receptors can interact directly with DNA in the nucleus to initiate protein synthesis. When a ligand binds to its receptor, conformational changes occur that affect the...
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Rab Cascades01:25

Rab Cascades

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Rab GTPases act in a regulated cascade during membrane fusion, helping the lipid bilayers mix. The Rab family of proteins are active when bound to GTP, and inactive when bound to GDP. Hence, they act as guanine nucleotide-dependent molecular switches. Rab-GTP recognizes and binds to long or short-range tethering proteins to capture the target vesicle. These tethers coordinate with SNAREs on the vesicle and the target membrane to assemble the trans SNARE complex that locks the mixing bilayers.
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Cascaded Op Amps01:16

Cascaded Op Amps

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Operational amplifiers (op-amps) are versatile electronic components that can be interconnected in a cascade - one after another in a linear sequence. This cascading is possible due to their infinite input resistance and zero output resistance, allowing them to maintain their input-output relationships even when connected in series.
In a cascaded system, each op-amp is referred to as a stage. The output of one stage drives the input of the subsequent stage. As the input signal passes through...
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Amplifying Signals via Enzymatic Cascade01:22

Amplifying Signals via Enzymatic Cascade

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When a ligand binds to a cell-surface receptor, the receptor's intracellular domain changes shape, which may either activate its enzyme function or allow its binding to other molecules. The initial signal is amplified by most signal transduction pathways. This means that a single ligand molecule can activate multiple molecules of a downstream target. Proteins that relay a signal are most commonly phosphorylated at one or more sites, activating or inactivating the protein. Kinases catalyze...
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Design Example: Creating a Hydraulic Model of a Dam Spillway01:21

Design Example: Creating a Hydraulic Model of a Dam Spillway

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Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.
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Collisions in Multiple Dimensions: Introduction01:05

Collisions in Multiple Dimensions: Introduction

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It is far more common for collisions to occur in two dimensions; that is, the initial velocity vectors are neither parallel nor antiparallel to each other. Let's see what complications arise from this. The first idea is that momentum is a vector. Like all vectors, it can be expressed as a sum of perpendicular components (usually, though not always, an x-component and a y-component, and a z-component if necessary). Thus, when the statement of conservation of momentum is written for a...
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相关实验视频

Updated: Jul 13, 2025

Inherent Dynamics Visualizer, an Interactive Application for Evaluating and Visualizing Outputs from a Gene Regulatory Network Inference Pipeline
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空间相互依赖网络中的级联的动力学.

Bnaya Gross1, Ivan Bonamassa2, Shlomo Havlin1

  • 1Department of Physics, Bar-Ilan University, 52900 Ramat-Gan, Israel.

Chaos (Woodbury, N.Y.)
|October 13, 2023
PubMed
概括
此摘要是机器生成的。

相互依赖网络中的级联故障随着依赖范围的变化而变化,显示出不同的相位过渡和级联动态. 这项研究揭示了已知过渡的机制,并预测了一种新的类型.

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Multi-electrode Array Recordings of Neuronal Avalanches in Organotypic Cultures
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Multi-electrode Array Recordings of Neuronal Avalanches in Organotypic Cultures

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Spatial Temporal Analysis of Fieldwise Flow in Microvasculature
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Spatial Temporal Analysis of Fieldwise Flow in Microvasculature

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相关实验视频

Last Updated: Jul 13, 2025

Inherent Dynamics Visualizer, an Interactive Application for Evaluating and Visualizing Outputs from a Gene Regulatory Network Inference Pipeline
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Multi-electrode Array Recordings of Neuronal Avalanches in Organotypic Cultures
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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
  • 凝聚物质物理学 凝聚物质物理学

背景情况:

  • 空间相互依赖网络中的级联故障受网络层之间的依赖性合范围的影响.
  • 了解这些动态对于预测系统范围内的故障和设计强大的网络至关重要.

研究的目的:

  • 调查依赖性合的相互作用范围如何影响空间相互依赖网络中的级联失效动态.
  • 描述不同类型的相位转换和与不同依赖范围相关的级联动力学.
  • 探索在物理系统中实验观察这些现象的潜力.

主要方法:

  • 在具有不同依赖性合范围的空间相互依赖网络中对级联故障动态的分析.
  • 识别和描述不同阶段过渡类型 (混合顺序,第一顺序,第二顺序) 及其相关的级联动力学.
  • 在相互依赖的超导体中混合顺序的电阻转换过程中对级联动力学的检查.

主要成果:

  • 增加的依赖性合范围导致各种相位过渡和级联动力学,包括关键分支,核化级联和弱级联.
  • 在相互依存的超导体中混合顺序电阻过渡的级联动力学与抽象网络中的透有相似之处.
  • 预测了一种新的第四种类型的相位过渡,由微观干预引发.

结论:

  • 依赖性合的相互作用范围是相互依赖网络中级联故障和相位过渡的关键因素.
  • 该研究阐明了已知的相位过渡的机制,并提出了一种新的类型,提供了对网络稳定性的洞察.
  • 这些发现为实验研究物理相互依存系统中的相位转换和级联动力学提供了框架.