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関連する概念動画

Problem-Solving: Tuning of a Guitar String01:04

Problem-Solving: Tuning of a Guitar String

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In the case of stringed instruments like the guitar, the elastic property that determines the speed of the sound produced is its linear mass density or the mass per unit length. This is simply called the linear density. If the string's linear density is constant along the string, then the linear density is simply the total mass divided by the total length.
The string's wave speed can be regulated by varying the linear density. Tension is the other property that determines the speed of...
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Naturalistic Observations02:30

Naturalistic Observations

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If you want to understand how behavior occurs, one of the best ways to gain information is to simply observe the behavior in its natural context. However, people might change their behavior in unexpected ways if they know they are being observed. How do researchers obtain accurate information when people tend to hide their natural behavior? As an example, imagine that your professor asks everyone in your class to raise their hand if they always wash their hands after using the restroom. Chances...
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Observational Learning01:12

Observational Learning

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Albert Bandura's observational learning, also known as imitation or modeling, occurs when a person observes and imitates another's behavior. It is a quicker process than operant conditioning. A well-known example is the Bobo doll study, where children who saw an adult acting aggressively towards the doll were more likely to act aggressively when left alone, compared to those who observed a nonaggressive adult. Many psychologists view observational learning as a form of latent learning...
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Observational Studies01:11

Observational Studies

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Observational studies are a type of analytical study where researchers observe events without any interventions. In other words, the researcher does not influence the response variable or the experiment's outcome.
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Prospective Study
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Actor-Observer Effect01:23

Actor-Observer Effect

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The actor-observer effect, a cognitive bias closely linked to the fundamental attribution error, refers to the tendency for individuals to attribute their behavior to external, situational factors while explaining others’ behavior in terms of internal, dispositional traits. This asymmetry in attribution significantly influences social perception and judgment.Cognitive Mechanisms Behind the EffectTwo primary psychological mechanisms contribute to the actor-observer effect: differences in...
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Data Collection by Observations01:08

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Data collection refers to a systematic way of obtaining, observing, measuring, and analyzing accurate information. Observational studies are one of the most widely used methods of data collection. It involves collecting data by observing the behavior and physical characteristics of a sample without making any modifications to the sample.
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A Customizable Protocol for String Assembly gRNA Cloning STAgR
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ベーテ弦の実験観察

Zhe Wang1,2, Jianda Wu3, Wang Yang3

  • 1Experimental Physics V, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg, 86135 Augsburg, Germany.

Nature
|February 9, 2018
PubMed
まとめ

研究者はテラヘルツスペクトロスコーピーを用いて 量子磁石の難解な弦状態を 実験的に特定しました 一世紀前に予測された この複雑な磁気刺激は 量子批判性に近い 量子スピンダイナミクスを支配します

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科学分野:

  • 凝縮物質物理学
  • 量子磁気について
  • スペクトロスコーピー

背景:

  • 理論的には"次元量子磁石で 予測されていました
  • 凝縮された物質のシステムにおけるこれらの弦状態の実験的実現と識別は,重要な課題であり続けています.

研究 の 目的:

  • 凝縮物質系における弦状態を実験的に認識し,特定する.
  • 量子批判的状態における文字列状態の振る舞いと特徴を調査する.

主な方法:

  • 高解像度テラヘルツスペクトロスコーピーを使った.
  • 強い縦断磁場の下で反鉄磁石のハイゼンベルグ-アイシング鎖 SrCo2V2O8 を研究した.
  • 理論的記述と検証のためにBETHEアンサツを使用した.

主要な成果:

  • SrCo2V2O8で成功裏に 弦状態と分数磁気刺激を解決した.
  • これらの興奮はベテアンサツによって正確に記述されていることが示された.
  • 弦の刺激が量子批判性に近い量子スピンダイナミクスを支配し,分数刺激は低エネルギー反鉄磁気変動を反映していることが観察されました.

結論:

  • 文字列状態の実験的識別は 量子磁気学の長年の理論的予測を検証しています
  • 文字列と分数刺激は,量子スピンダイナミクスと量子批判性に近い変動を制御する上で重要な役割を果たします.
  • この研究は,冷たい原子と弦理論の潜在的応用で,複雑な多体系を理解するための広範な意味合いを持っています.