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関連する概念動画

Reaction Mechanisms03:06

Reaction Mechanisms

27.3K
Chemical reactions often occur in a stepwise fashion, involving two or more distinct reactions taking place in a sequence. A balanced equation indicates the reacting species and the product species, but it reveals no details about how the reaction occurs at the molecular level. The reaction mechanism (or reaction path) provides details regarding the precise, step-by-step process by which a reaction occurs.
For instance, the decomposition of ozone appears to follow a mechanism with two steps:
27.3K
Support Reactions01:30

Support Reactions

1.0K
A coplanar force system refers to a set of forces that all lie in the same plane and are subject to different reactions between the point of contact and the supports. Understanding how different types of supports affect coplanar forces is crucial for designing safe and reliable structures that can withstand external loads.
The purpose of the supports is to prevent the translational motion of the system by applying an equal and opposite force and to prevent the system's rotation by applying...
1.0K
Radical Reactivity: Overview01:11

Radical Reactivity: Overview

2.2K
Radicals, the highly reactive species, gain stability by undergoing three different reactions. The first reaction involves a radical-radical coupling, in which a radical combines with another radical, forming a spin‐paired molecule. The second reaction is between a radical and a spin‐paired molecule, generating a new radical and a new spin‐paired molecule. The third reaction is radical decomposition in a unimolecular reaction, forming a new radical and a spin‐paired...
2.2K
Reaction Rate02:53

Reaction Rate

56.7K
The rate of reaction is the change in the amount of a reactant or product per unit time. Reaction rates are therefore determined by measuring the time dependence of some property that can be related to reactant or product amounts. Rates of reactions that consume or produce gaseous substances, for example, are conveniently determined by measuring changes in volume or pressure.
The mathematical representation of the change in the concentration of reactants and products, over time, is the rate...
56.7K
Reaction Quotient02:35

Reaction Quotient

50.3K
The status of a reversible reaction is conveniently assessed by evaluating its reaction quotient (Q). For a reversible reaction described by m A + n B ⇌ x C + y D, the reaction quotient is derived directly from the stoichiometry of the balanced equation as
50.3K
Enzyme-linked Receptors01:00

Enzyme-linked Receptors

80.7K
Enzyme-linked receptors are proteins that act as both receptor and enzyme, activating multiple intracellular signals. This is a large group of receptors that include the receptor tyrosine kinase (RTK) family. Many growth factors and hormones bind to and activate the RTKs.
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
80.7K

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Updated: Oct 14, 2025

Detecting, Visualizing and Quantitating the Generation of Reactive Oxygen Species in an Amoeba Model System
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Detecting, Visualizing and Quantitating the Generation of Reactive Oxygen Species in an Amoeba Model System

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オープン・リアクション・データベース

Steven M Kearnes1, Michael R Maser2, Michael Wleklinski3

  • 1Relay Therapeutics, Cambridge, Massachusetts 02139, United States.

Journal of the American Chemical Society
|November 2, 2021
PubMed
まとめ
この要約は機械生成です。

オープン反応データベース (ORD) は,機械学習アプリケーションの障壁を克服する化学反応データの標準化された構造を提供します. このオープンアクセスのイニシアチブは,コンピュータによる合成と反応予測を進めることを目的としています.

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Optimization of the Ugi Reaction Using Parallel Synthesis and Automated Liquid Handling
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Last Updated: Oct 14, 2025

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Optimization of the Ugi Reaction Using Parallel Synthesis and Automated Liquid Handling
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科学分野:

  • 化学について
  • データサイエンス
  • コンピュータ化学

背景:

  • 化学反応データは雑誌や研究室のノートブックなどの様々な情報源で 構造化されていません
  • この標準化の欠如は,特に化学の機械学習モデルのトレーニングにおける下流アプリケーションを妨げています.
  • 既存のデータ形式は,貴重な化学反応情報へのアクセスと利用に重大な障壁をもたらします.

研究 の 目的:

  • オープン・リアクション・データベース (ORD) を導入し,オープンアクセス・スキーマとインフラストラクチャを導入する.
  • 有機反応データの保存と共有を標準化する.
  • アクセシブルなデータを介して高度な計算化学アプリケーションを容易にします.

主な方法:

  • 有機反応データを構造化するためのオープンアクセスのスキーマを開発した.
  • 化学反応に関する中央データレポジトリを設立しました
  • スキーマ,データ,サポートコード,ユーザーインターフェイスを GitHub で公開しました.
  • このスキーマは,高通量とフロー化学を含む様々な実験技術をサポートします.

主要な成果:

  • オープン・リアクション・データベース (ORD) のスキーマとインフラストラクチャは,現在公開されています.
  • ORDは,幅広い化学反応タイプと実験セットアップをサポートしています.
  • 構造化された有機反応データの集中リポジトリが確立されています.
  • 公開可能なコードとインターフェースは,データの利用と貢献を容易にする.

結論:

  • 一貫したデータ表現と共有のインフラストラクチャは,予測化学の進歩に不可欠です.
  • ORDは,コンピュータによる合成計画と反応予測を大幅に改善すると予想されています.
  • このイニシアチブは,オープンなデータアクセスを通じて,計算化学のタスクの最先端を向上させることを目的としています.