関連する実験動画
Updated: Aug 4, 2026

06:17
Measuring the Strength of Mice
Published on: June 2, 2013
まとめ
この研究では,アルビノラットが,水不足の後に水を与えられたとき,平均で1秒間に7回以上をく傾向があることがわかりました. セッション内およびセッション間にはわずかな変化がみられたが,全体的にラットのする行動は安定したままだった.
科学分野:
- 動物の行動に関する研究です.
- ネズミの生理学 ネズミの生理学
背景:
- ネズミの渇きに対する生理学的および行動的反応を理解することは,動物研究において極めて重要です.
- rateは,モチベーションと生理学的状態の重要な指標です. 剥奪された動物.
研究 の 目的:
- 水不足の特定の条件下でアルビノラットのローカルなの割合を定量化するために.
- 実験セッション内および実験セッション間におけるの速度の変動を特定する.
主な方法:
- 8匹のアルビノラットに23時間の水不足を施した.
- ネズミが短い滑走路の端で蛇口の水にアクセスすると,の割合が測定されました.
- 複数のセッション内および複数のセッションにわたって,の頻度に関するデータを収集しました.
主要な成果:
- 平均的なめ速度は,一秒間に7回のをわずかに上回りました.
- セッションの初めには,後の部分と比較して,の割合が一貫して高かった.
- セッション間および個々の差異は最小で,約1秒あたり1リックでした.
結論:
- アルビノラットのする割合は,実用的な実験の範囲内で著しく一貫しています.
- ライキング・レートは,ネズミの渇き動機の安定した尺度であるようです.
- この発見は,歯類の研究における信頼性の高い行動指標として,歯率の使用を支持している.
キーワード:
RATS/生理学について関連する概念動画
Alcohols from Carbonyl Compounds: Reduction
Reduction is a simple strategy to convert a carbonyl group to a hydroxyl group. The three major pathways to reduce carbonyls to alcohols are catalytic hydrogenation, hydride reduction, and borane reduction.
Catalytic hydrogenation is similar to the reduction of an alkene or alkyne by adding H2 across the pi bond in the presence of transition metal catalysts like Raney Ni, Pd–C, Pt, or Ru. Aldehydes and ketones can be reduced by this method, often under mild to moderate heat (25–100°C) and...
Catalytic hydrogenation is similar to the reduction of an alkene or alkyne by adding H2 across the pi bond in the presence of transition metal catalysts like Raney Ni, Pd–C, Pt, or Ru. Aldehydes and ketones can be reduced by this method, often under mild to moderate heat (25–100°C) and...
Alcohols from Carbonyl Compounds: Grignard Reaction
Grignard reagents are one of the most commonly used reagents used to synthesize alcohols from carbonyl compounds. Grignard reagents are organomagnesium halides with a highly polar carbon–magnesium bond. Due to the partial ionic nature of the C–Mg bond, the carbon functions as a strong nucleophile and attacks electrophiles like carbonyl carbon.
Magnesium from the reagent coordinates with carbonyl oxygen, further reducing the carbonyl carbon's electron density. Thus, the carbonyl carbon is a...
Magnesium from the reagent coordinates with carbonyl oxygen, further reducing the carbonyl carbon's electron density. Thus, the carbonyl carbon is a...
Aldehydes and Ketones to Alkanes: Wolff–Kishner Reduction
Wolff–Kishner reduction involves converting aldehydes and ketones to alkanes using hydrazine and a base. The reaction converts a carbonyl group to a methylene group. The method was independently discovered by N. Kishner in 1911 and L. Wolff in 1912. The reduction is carried out in high-boiling solvents such as ethylene glycol and diethylene glycol because heat is required to deprotonate the N–H proton in one of the reaction steps.
Base-Catalyzed Aldol Addition Reaction
As depicted in Figure 1, base-catalyzed aldol addition involves adding two carbonyl compounds in aqueous sodium hydroxide to form a β-hydroxy carbonyl compound.
Common Names of Aldehydes and Ketones
Some common aldehydes and ketones are popularly known by their common names used historically and predate the IUPAC nomenclature.
Common names of aldehydes are derived from the names of their corresponding acid. For instance, the two-carbon aldehyde–acetaldehyde derives its name from the corresponding acid–acetic acid. Similarly, formaldehyde derives its name from formic acid and benzaldehyde from benzoic acid.
Aliphatic ketones are named by suffixing the word “ketone” to the alphabetically...
Common names of aldehydes are derived from the names of their corresponding acid. For instance, the two-carbon aldehyde–acetaldehyde derives its name from the corresponding acid–acetic acid. Similarly, formaldehyde derives its name from formic acid and benzaldehyde from benzoic acid.
Aliphatic ketones are named by suffixing the word “ketone” to the alphabetically...
Nonenolizable Aldehydes to Acids and Alcohols: The Cannizzaro Reaction
The Cannizzaro reaction is a base-promoted redox reaction producing a primary alcohol and a carboxylic acid from two molecules of a nonenolizable aldehyde. The reaction commences when the anionic counterpart of the base attacks the carbonyl carbon, resulting in a tetrahedral alkoxide intermediate. The base then abstracts a proton from the intermediate to generate an unstable dianionic species. This intermediate enables the release of the aldehydic hydrogen as a hydride ion. An intermolecular...

