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CRISPR01:59

CRISPR

58.0K
Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
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RNA Interference01:23

RNA Interference

28.2K
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
28.2K
Protein Folding01:22

Protein Folding

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Overview
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Reason and Intuition01:37

Reason and Intuition

7.5K
The human brain processes information for decision-making using one of two routes: an intuitive system and a rational system (Epstein, 1994; popularized by Kahneman, 2011 as System 1 and System 2, respectively). The intuitive system is quick, impulsive, and operates with minimal effort, relying on emotions or habits to provide cues for what to do next, while the rational system is logical, analytical, deliberate, and methodical. Research in neuropsychology suggests that the...
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Conservation of Small Populations02:04

Conservation of Small Populations

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Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
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Additional Subnuclear Structures02:10

Additional Subnuclear Structures

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The eukaryotic nucleus is a double membrane-bound organelle that contains nearly all of the cell’s genetic material in the form of chromosomes. It is rightly called the “brain” of the cell as it shoulders the responsibility of responding to various physiological processes, stress, altered metabolic conditions, and other cellular signals. 
The nucleus contains many membrane-less subnuclear organelles or nuclear bodies, such as nucleoli, Cajal bodies, speckles,...
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Updated: Feb 8, 2026

Preparation of Gene Gun Bullets and Biolistic Transfection of Neurons in Slice Culture
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Preparation of Gene Gun Bullets and Biolistic Transfection of Neurons in Slice Culture

Published on: February 13, 2008

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ガイド付き渦弾丸

Carlos F Sánchez1,2, Ángel Paredes2, Humberto Michinel2

  • 1Universidad Politécnica Salesiana, Grupo de Investigación en Física (GIF), Cuenca, 010105, Ecuador.

Physical review letters
|February 6, 2026
PubMed
まとめ
この要約は機械生成です。

研究者らは、導波構造内で自己閉じ込められる安定した3次元非線形渦「弾丸」（明るいソリトン）を実証した。臨界閉じ込め深さがこれらのトポロジカルモードを安定化させ、弾性衝突や光学および物質波システムにおける潜在的な制御を可能にする。

科学分野:

  • 非線形光学
  • ソリトン物理学
  • 波動伝播
キーワード:
非線形光学ソリトン渦弾丸自己閉じ込め物質波光学

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Last Updated: Feb 8, 2026

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背景:

  • 光および物質波の自己閉じ込めは、非線形システムにとって重要である。
  • 渦モードおよび明るいソリトンは、通常3次元で崩壊または分裂する。
  • 軌道角運動量（OAM）は、ビームダイナミクスにおいて重要な役割を果たす。

結論:

  • 安定な3次元トポロジカルソリトンを形成および制御できる。
  • この発見は、多次元非線形システムにおける自己閉じ込めの理解を深める。
  • 光学および物質波を安定化および制御するための新しい方法の可能性。