関連する実験動画

Updated: Jan 30, 2026

Cell-free Protein Expression Using the Rapidly Growing Bacterium Vibrio natriegens
08:52

Cell-free Protein Expression Using the Rapidly Growing Bacterium Vibrio natriegens

Published on: March 14, 2019

18.2K

急激に成長する銀河前ガスの雲の中で巨大なブラックホールの形成

John H Wise1, John A Regan2, Brian W O'Shea3,4

  • 1Center for Relativistic Astrophysics, School of Physics, Georgia Institute of Technology, Atlanta, GA, USA. jwise@gatech.edu.

Nature
|January 25, 2019
PubMed
まとめ

初期の巨大なブラックホールの形成は 放射線だけではなく 構造の形成のダイナミクスによって引き起こされます シミュレーションによると 超大質量恒星は 金属のないハローで 急速なガスの成長で 形成されることが示されており ブラックホールの種子が以前考えられていたよりも 多いことを示唆しています

さらに関連する動画

Rapid and Efficient Generation of Neurons from Human Pluripotent Stem Cells in a Multititre Plate Format07:27

Rapid and Efficient Generation of Neurons from Human Pluripotent Stem Cells in a Multititre Plate Format

Published on: March 5, 2013

44.1K
Massive Pontine Hemorrhage by Dual Injection of Autologous Blood06:33

Massive Pontine Hemorrhage by Dual Injection of Autologous Blood

Published on: May 29, 2021

4.7K

関連する概念動画

Detection of Black Holes01:10

Detection of Black Holes

Although black holes were theoretically postulated in the 1920s, they remained outside the domain of observational astronomy until the 1970s.
Their closest cousins are neutron stars, which are composed almost entirely of neutrons packed against each other, making them extremely dense. A neutron star has the same mass as the Sun but its diameter is only a few kilometers. Therefore, the escape velocity from their surface is close to the speed of light.
Not until the 1960s, when the first neutron...
2.6K
Gas Exchange and Transport01:20

Gas Exchange and Transport

Gas exchange, the intake of molecular oxygen (O2) from the environment and the outflow of carbon dioxide (CO2) into the environment, is necessary for cellular function. Gas exchange during respiration occurs largely via the movement of gas molecules along pressure gradients. Gas travels from areas of higher partial pressure to areas of lower partial pressure. In mammals, gas exchange occurs in the alveoli of the lungs, which are adjacent to capillaries and share a membrane with them.
76.9K
Kinetic Molecular Theory and Gas Laws Explain Properties of Gas Molecules02:34

Kinetic Molecular Theory and Gas Laws Explain Properties of Gas Molecules

The test of the kinetic molecular theory (KMT) and its postulates is its ability to explain and describe the behavior of a gas. The various gas laws (Boyle’s, Charles’s, Gay-Lussac’s, Avogadro’s, and Dalton’s laws) can be derived from the assumptions of the KMT, which have led chemists to believe that the assumptions of the theory accurately represent the properties of gas molecules.
37.4K
pre-mRNA Processing02:01

pre-mRNA Processing

In eukaryotic cells, transcripts made by RNA polymerase are modified and processed before exiting the nucleus. Unprocessed RNA is called precursor mRNA or pre-mRNA to distinguish it from mature mRNA.
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a “cap” to the 5’ end of the growing transcript. In this process, a 5’ phosphate is replaced by modified guanosine that has a methyl group attached to it (7-Methyl...
57.5K
Gas Laws: Boyle's, Gay-Lussac, Charles', Avogadro's, and Ideal Gas Law03:19

Gas Laws: Boyle's, Gay-Lussac, Charles', Avogadro's, and Ideal Gas Law

Through experiments, scientists established the mathematical relationships between pairs of variables, such as pressure and temperature, pressure and volume, volume and temperature, and volume and moles, that hold for an ideal gas.
77.3K
Pre-mRNA Processing: Modification of pre-mRNA Ends01:35

Pre-mRNA Processing: Modification of pre-mRNA Ends

In eukaryotic cells, transcripts made by RNA polymerase are modified and processed before exiting the nucleus. Unprocessed RNA is called precursor mRNA or pre-mRNA to distinguish it from mature mRNA.
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a cap to the 5' end of the growing transcript. In this process, a 5' phosphate is replaced by modified guanosine that has a methyl group attached (7-methyl guanosine). This 5' cap helps...
14.8K