Nucleus

Nucleus (pl: nuclei) is a Latin word for the seed inside a fruit. It may refer to:

  • Atomic nucleus, the very dense central region of an atom
  • Cell nucleus, a central organelle of a eukaryotic cell, containing most of the cell's DNA
  • Nucleus (neuroanatomy), a cluster of cell bodies of neurons in the central nervous system
  • Nucleus (syllable), the central part of a syllable in linguistics
  • Comet nucleus, the solid, central part of a comet
  • Condensation nucleus, the seed of a raindrop
  • Ice nucleus, the seed of a snowflake
  • Nucleus (algebra), the elements of a ring that associate with all others
  • Computer systems

  • Nucleus CMS, a weblog system
  • Other uses

  • Nucleus (order theory), a mathematical term
  • Nucleus (advocacy group), a UK-European political advocacy campaign organisation
  • Nucleus (band), a jazz-rock band from Britain
  • Nucleus (video game), a 2007 downloadable game on the PlayStation Store
  • Nucleus (Anekdoten album), 1995
  • Nucleus (Sonny Rollins album), 1975
  • Nucleus Limited, an Australian medical research company, taken over by Pacific Dunlop in 1988
  • Cell nucleus

    In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel) is a membrane-enclosed organelle found in eukaryotic cells. Eukaryotes usually have a single nucleus, but a few cell types have no nuclei, and a few others have many.

    Cell nuclei contain most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes. The genes within these chromosomes are the cell's nuclear genome. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression—the nucleus is, therefore, the control center of the cell. The main structures making up the nucleus are the nuclear envelope, a double membrane that encloses the entire organelle and isolates its contents from the cellular cytoplasm, and the nucleoskeleton (which includes nuclear lamina), a network within the nucleus that adds mechanical support, much like the cytoskeleton, which supports the cell as a whole.

    Syllable

    A syllable is a unit of organization for a sequence of speech sounds. For example, the word water is composed of two syllables: wa and ter. A syllable is typically made up of a syllable nucleus (most often a vowel) with optional initial and final margins (typically, consonants).

    Syllables are often considered the phonological "building blocks" of words. They can influence the rhythm of a language, its prosody, its poetic meter and its stress patterns.

    Syllabic writing began several hundred years before the first letters. The earliest recorded syllables are on tablets written around 2800 BC in the Sumerian city of Ur. This shift from pictograms to syllables has been called "the most important advance in the history of writing".

    A word that consists of a single syllable (like English dog) is called a monosyllable (and is said to be monosyllabic). Similar terms include disyllable (and disyllabic) for a word of two syllables; trisyllable (and trisyllabic) for a word of three syllables; and polysyllable (and polysyllabic), which may refer either to a word of more than three syllables or to any word of more than one syllable.

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    Latest News for: mate nucleus

    Brain’s bedroom chemistry unlocked in mouse sex study, could treat premature ejaculation

    Interesting Engineering 19 Mar 2025
    ... of Tsukuba in Japan studied male mice during mating, using fluorescent sensors to track dopamine and acetylcholine levels in the nucleus accumbens, a brain region linked to pleasure and reward.

    Utah State basketball's strange three-peat: Three NCAA Tournaments in row with three coaches

    Usatoday 13 Mar 2025
    Auburn, Florida lead stacked SEC men's basketball tournament ... Sports Seriously ... The man debuting this season is Jerrod Calhoun ... Backcourt mate Ian Martinez said he’d be back soon thereafter, and the nucleus for another 20-plus-win squad was in place.
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