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Weak Base Solutions03:21

Weak Base Solutions

25.5K
Some compounds produce hydroxide ions when dissolved by chemically reacting with water molecules. In all cases, these compounds react only partially and so are classified as weak bases. These types of compounds are also abundant in nature and important commodities in various technologies. For example, global production of the weak base ammonia is typically well over 100 metric tons annually, being widely used as an agricultural fertilizer, a raw material for chemical synthesis of other...
25.5K
Weak Acid Solutions04:02

Weak Acid Solutions

43.5K
Few compounds act as strong acids. A far greater number of compounds behave as weak acids and only partially react with water, leaving a large majority of dissolved molecules in their original form and generating a relatively small amount of hydronium ions. Weak acids are commonly encountered in nature, being the substances partly responsible for the tangy taste of citrus fruits, the stinging sensation of insect bites, and the unpleasant smells associated with body odor. A familiar example of a...
43.5K
Titration of a Weak Acid with a Weak Base01:08

Titration of a Weak Acid with a Weak Base

5.0K
Weak acids and bases do not undergo dissociation completely, and titrations between these two are rarely studied. When such studies are performed, say, for the titration of a weak acid with a weak base, the titration curve plots the change in pH as a function of the volume of base added. Take the titration of acetic acid with ammonia, for instance. During the titration, these two species form ammonium acetate and water, but the pH change is slow and gradual.
As a result, there is no simple...
5.0K
lncRNA - Long Non-coding RNAs02:39

lncRNA - Long Non-coding RNAs

10.0K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
10.0K
lncRNA - Long Non-coding RNAs02:39

lncRNA - Long Non-coding RNAs

3.7K
3.7K
Titration Calculations: Weak Acid - Strong Base03:55

Titration Calculations: Weak Acid - Strong Base

49.4K
Calculating pH for Titration Solutions: Weak Acid/Strong Base
For the titration of 25.00 mL of 0.100 M CH3CO2H with 0.100 M NaOH, the reaction can be represented as:
49.4K

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関連する実験動画

Updated: Feb 15, 2026

Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice
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Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice

Published on: June 29, 2018

12.3K

弱いテータリズムで海馬の位置コードを解読する.

Gautam Agarwal1,2, Seiji Akera3, Brian Lustig4

  • 1Department of Natural Sciences, Pitzer College, Claremont, CA, USA. gagarwal@scrippscollege.edu.

Nature communications
|February 13, 2026
PubMed
まとめ

ローカル・フィールド・ポテンシャル (LFP) は,強いセータ振動なしに,空間情報を運ぶことができる. 人工ニューラルネットワークは,ラットヒッポカンプスの位置調整テータリズム (pThetas) を明らかにし,ニューラルコンピューティングのための新しい解読原理を示唆しました.

さらに関連する動画

Tuning in the Hippocampal Theta Band In Vitro: Methodologies for Recording from the Isolated Rodent Septohippocampal Circuit
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Tuning in the Hippocampal Theta Band In Vitro: Methodologies for Recording from the Isolated Rodent Septohippocampal Circuit

Published on: August 2, 2017

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Automatic Detection of Highly Organized Theta Oscillations in the Murine EEG
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Automatic Detection of Highly Organized Theta Oscillations in the Murine EEG

Published on: March 10, 2017

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関連する実験動画

Last Updated: Feb 15, 2026

Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice
07:33

Optogenetic Entrainment of Hippocampal Theta Oscillations in Behaving Mice

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Tuning in the Hippocampal Theta Band In Vitro: Methodologies for Recording from the Isolated Rodent Septohippocampal Circuit
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Automatic Detection of Highly Organized Theta Oscillations in the Murine EEG
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科学分野:

  • 神経科学は神経科学である.
  • 計算神経科学とは
  • 人工知能 (AI) とは,人工知能 (AI) のことです.

背景:

  • ローカル・フィールド・ポテンシャル (LFP) はニューラル・コーディネーションを反映すると考えられているが,ニューラル・コンピューティングにおけるその役割は不明である.
  • 海馬のテータリズムは,空間ナビゲーションのための場所細胞の発射を組織しますが,静止状態では不規則になります.
  • この不規則性は,空間情報エンコーディングを損なうと仮定されています.

研究 の 目的:

  • 不規則なテータリズムが空間情報を破壊するという仮定に異議を唱えるため.
  • 弱い振動を持つLFPで空間情報を検出する方法を開発する.
  • 神経情報の解読のための代替原則を調査する.

主な方法:

  • LFPから位置調整のテータリズム (pTheta) を識別するための人工ニューラルネットワークを開発しました.
  • ナビゲーションと静止状態中のオスラットのLFP記録を分析した.
  • 比較されたpThetaと支配的なthetaリズムと人口スパイクコード.

主要な成果:

  • 人工ニューラルネットワークは,強力なセータ振動なしに,LFPからpThetaを成功裏に識別しました.
  • pThetaは,支配的なthetaリズムと区別されていることが判明しました.
  • pテータは,場所細胞集団間のリズム調整を反映し,空間情報を運びました.

結論:

  • 弱くて断続的な神経振動は,重要な空間情報を伝達することができます.
  • 情報ベースの解読原理は,微妙な振動でニューラルデータを分析するのに有効です.
  • これは,ニューラルコンピューティングのための強力な振動の必要性に関する伝統的な見解に異議を唱えます.