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Updated: Jul 21, 2026

Rapid and Robust Analysis of Cellular and Molecular Polarization Induced by Chemokine Signaling
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Rapid and Robust Analysis of Cellular and Molecular Polarization Induced by Chemokine Signaling

Published on: December 12, 2014

恒星形成地域における円形の極化:生物分子ホモキラリティへの影響

J Bailey1, A Chrysostomou, J H Hough

  • 1Anglo-Australian Observatory, Epping, New South Wales, Australia.

Science (New York, N.Y.)
|July 31, 1998
PubMed
まとめ

オリオンの塵からの強力な赤外線循環的偏振は,初期の地球にキラルな有機分子を蒔いた可能性があります. これは,隕石で見つかるような左利きアミノ酸に対する生命の好みの起源を説明するかもしれない.

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Polarization-Sensitive Two-Photon Microscopy for a Label-Free Amyloid Structural Characterization05:54

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Group Polarization01:01

Group Polarization

Group polarization is the strengthening of an original group attitude following the discussion of views within a group (Teger & Pruitt, 1967). That is, if a group initially favors a viewpoint, after discussion the group consensus is likely a stronger endorsement of the viewpoint. Conversely, if the group was initially opposed to a viewpoint, group discussion would likely lead to stronger opposition.
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Molecular Shape and Polarity

Dipole Moment of a Molecule
Polar Covalent Bonds02:24

Polar Covalent Bonds

Covalent bonds are formed between two atoms when both have similar tendencies to attract electrons to themselves (i.e., when both atoms have identical or fairly similar ionization energies and electron affinities). Nonmetal atoms frequently form covalent bonds with other nonmetal atoms. For example, the hydrogen molecule, H2, contains a covalent bond between its two hydrogen atoms. When two separate hydrogen atoms with a particular potential energy approach each other, their valence orbitals...
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Chirality in Nature

Chirality is the most intriguing yet essential facet of nature, governing life’s biochemical processes and precision. It can be observed from a snail shell pattern in a macroscopic world to an amino acid, the minutest building block of life. Most of the snails around the world have right-coiled shells because of the intrinsic chirality in their genes. All the amino acids present in the human body exist in an enantiomerically pure state, except for glycine - the sole achiral amino acid. The...
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Polarity of the Cytoskeleton

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Potential Due to a Polarized Object

A neutral atom consists of a positively charged nucleus surrounded by a negatively charged electron cloud. When placed in an external electric field, the external electric force pulls the electrons and nucleus apart, opposite to the intrinsic attraction between the nucleus and the electrons. The opposing forces balance each other with a slight shift between the center of masses of the nucleus and the electron cloud, resulting in a polarized atom. On the other hand, a few molecules, like water,...