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Nuclear Reactor Safety
Nuclear may refer to: Physics Relating to the nucleus of the atom: * Nuclear engineering * Nuclear physics * Nuclear power *Nuclear reactor *Nuclear weapon * Nuclear medicine *Radiation therapy *Nuclear warfare Mathematics * Nuclear space * Nuclear operator * Nuclear congruence *Nuclear C*-algebra Biology Relating to the nucleus of the cell: * Nuclear DNA Society *Nuclear family, a family consisting of a pair of adults and their children Music * "Nuclear" (band), chilean thrash metal band * "Nuclear" (Ryan Adams song), 2002 *"Nuclear", a song by Mike Oldfield from his ''Man on the Rocks'' album * ''Nu.Clear'' (EP) by South Korean girl group CLC Films * ''Nuclear'' (film), a 2022 documentary by Oliver Stone. See also *Nucleus (other) *Nucleolus *Nucleation *Nucleic acid Nucleic acids are large biomolecules that are crucial in all cells and viruses. They are composed of nucleotides, which are the monomer components: a pentose, 5-carbon sugar, a phosphate group an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atomic Nucleus
The atomic nucleus is the small, dense region consisting of protons and neutrons at the center of an atom, discovered in 1911 by Ernest Rutherford at the Department_of_Physics_and_Astronomy,_University_of_Manchester , University of Manchester based on the 1909 Geiger–Marsden experiments, Geiger–Marsden gold foil experiment. After the discovery of the neutron in 1932, models for a nucleus composed of protons and neutrons were quickly developed by Dmitri Ivanenko and Werner Heisenberg. An atom is composed of a positively charged nucleus, with a cloud of negatively charged electrons surrounding it, bound together by electrostatic force. Almost all of the mass of an atom is located in the nucleus, with a very small contribution from the electron cloud. Protons and neutrons are bound together to form a nucleus by the nuclear force. The diameter of the nucleus is in the range of () for hydrogen (the diameter of a single proton) to about for uranium. These dimensions are much ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cell Nucleus
The cell nucleus (; : nuclei) is a membrane-bound organelle found in eukaryote, eukaryotic cell (biology), cells. Eukaryotic cells usually have a single nucleus, but a few cell types, such as mammalian red blood cells, have #Anucleated_cells, no nuclei, and a few others including osteoclasts have Multinucleate, many. 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 nuclear matrix, a network within the nucleus that adds mechanical support. The cell nucleus contains nearly all of the cell's genome. Nuclear DNA is often organized into multiple chromosomes – long strands of DNA dotted with various proteins, such as histones, that protect and organize the DNA. The genes within these chromosomes are Nuclear organization, structured in such a way to promote cell function. The nucleus maintains the integrity of genes and controls the activities of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nucleation
In thermodynamics, nucleation is the first step in the formation of either a new Phase (matter), thermodynamic phase or Crystal structure, structure via self-assembly or self-organization within a substance or mixture. Nucleation is typically defined to be the process that determines how long an observer has to wait before the new phase or self-organized structure appears. For example, if a volume of water is cooled (at atmospheric pressure) significantly below 0°C, it will tend to Freezing, freeze into ice, but volumes of water cooled only a few degrees below 0°C often stay completely free of ice for long periods (supercooling). At these conditions, nucleation of ice is either slow or does not occur at all. However, at lower temperatures nucleation is fast, and ice crystals appear after little or no delay. Nucleation is a common mechanism which generates first-order phase transitions, and it is the start of the process of forming a new thermodynamic phase. In contrast, new phas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nucleolus
The nucleolus (; : nucleoli ) is the largest structure in the cell nucleus, nucleus of eukaryote, eukaryotic cell (biology), cells. It is best known as the site of ribosome biogenesis. The nucleolus also participates in the formation of signal recognition particles and plays a role in the cell's response to stress. Nucleoli are made of proteins, DNA and RNA, and form around specific chromosomal regions called nucleolar organizing regions. Malfunction of the nucleolus is the cause of several human conditions called "nucleolopathies" and the nucleolus is being investigated as a target for cancer chemotherapy. History The nucleolus was identified by bright-field microscopy during the 1830s. Theodor Schwann in his 1839 treatise described that Matthias Jakob Schleiden, Schleiden had identified small corpuscles in nuclei, and named the structures "Kernkörperchen". In a 1947 translation of the work to English, the structure was named "nucleolus". Little was known about the fun ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nucleus (other)
Nucleus (: nuclei) is a Latin word for the seed inside a fruit. It most often refers 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 may also refer to: Science, technology, and mathematics Astronomy * Active galactic nucleus in astronomy * Comet nucleus, the solid, central part of a comet Biology *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 that forms in the eye in nuclear sclerosis (early cataracts) *''Nucleus'', a scientific journal concerned with the cell nucleus; published by Taylor & Francis * Nucleus, a small colony of honeybees, induced to raise a new queen by the beekeeper Computer systems * Nucleus (operating system), sometimes a synonym for kernel * Nucleus CMS, a weblog system * Nucleus RTOS, a real-tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear (film)
''Nuclear Now'' is a 2022 American documentary film, directed and co-written by Oliver Stone. The movie argues that nuclear energy is a solution needed to fight climate change because other renewable energies by themselves will not be sufficient in time for the planet to obtain carbon neutrality before climate change becomes irreversible. The movie is based on the book ''A Bright Future: How Some Countries Have Solved Climate Change and the Rest Can Follow'' written by the US scientists Joshua S. Goldstein and Staffan A. Qvist. Goldstein co-authored the screenplay together with Oliver Stone. Producers include: Stefano Buono, Isabelle Boemeke, and Jon Kilik. The documentary premiered out of competition at the 79th edition of the Venice Film Festival. Stone and Goldstein later also pledged for their propositions at the 53rd World Economic Forum 2023 in Davos, Switzerland. It features one of the final film scores of Vangelis. Plot As the narrator of the movie, Stone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Man On The Rocks
''Man on the Rocks'' is the twenty-fifth studio album by British musician Mike Oldfield, released on 3 March 2014 on the Virgin EMI label. The album is Oldfield's second full album of exclusively songs with no long or instrumental pieces, the first being 1989's '' Earth Moving''. Recording and production ''Man on the Rocks'' was produced by Stephen Lipson together with Oldfield. The album features bassist Leland Sklar, drummer John Robinson, keyboardist Matt Rollings, guitarist Michael Thompson and singer Luke Spiller together with Oldfield himself on guitar. The backing tracks were recorded during June 2013 in Studio D of Village Studios, Los Angeles with producer Steve Lipson; Oldfield participated in these sessions via Skype. Oldfield has also recorded part of the album in his home studio in the Bahamas. Oldfield's electric guitar sound on the album is primarily a Fender Telecaster combined with the Avid Eleven software plug-in. The album marks a return of Oldfi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear (Ryan Adams Song)
"Nuclear" is a song by singer-songwriter Ryan Adams from his 2002 album '' Demolition'', the only single from the album. The song was recorded during Adams' July 2001 sessions with the Pinkhearts in Nashville. In 2002, Adams spoke with CNN about the song: "I guess it's Britpop for Americans. I don't know what it is, really, but the lyrics are funny. There's actually a really funny line in it that says, 'I saw her and the Yankees lost to the Braves.' If you're from Atlanta, that's not a very nice thing to say. It's sort of referring to the fact that the Braves never win." (The Atlanta Braves lost both the 1996 and 1999 World Series to the New York Yankees.) Among the b-sides included on the various "Nuclear" singles are the non-album tracks "Blue" and "Song For Keith". Adams co-wrote "Blue" with Julianna Raye, and the song comes from the ''48 Hours'' sessions. "Song For Keith" is a tribute to Rolling Stones The Rolling Stones are an English Rock music, r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear (band)
Nuclear is a Chilean thrash metal band founded in Arica, Chile, in 1998. The band has gone through several lineup changes and is currently signed to the label Candlelight Records. History Nuclear was formed in 1995 under the name Escoria, but it was not until 1997 when the first recording was released. After the dissolution in 2001, the name of Escoria turned to Nuclear and the original members Sebastian Puente, Francisco and Eugene Haussmann Sudy are maintained in a constant line up that continues to date. The band has released four studio albums and toured in several countries sharing the stage with acts like Testament, Forbidden, Voivod, Grave, Hirax, 1349, Anthrax, Destruction, Witchcraft Witchcraft is the use of Magic (supernatural), magic by a person called a witch. Traditionally, "witchcraft" means the use of magic to inflict supernatural harm or misfortune on others, and this remains the most common and widespread meanin ..., Hate Eternal, Absu, At ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear Family
A nuclear family (also known as an elementary family, atomic family, or conjugal family) is a term for a family group consisting of parents and their children (one or more), typically living in one home residence. It is in contrast to a single-parent family, a larger extended family, or a family with more than two parents. Nuclear families typically center on a Marriage, married couple that may have any number of children. There are differences in definition among observers. Some definitions allow only biological children who are full-blood siblings, some consider adopted or half- and step-siblings a part of the immediate family, but others allow for a step-parent and any mix of dependent children, including stepchildren and adopted children. Some sociologists and anthropologists consider the extended family structure to be the most common family structure in most cultures and at most times for humans, rather than the nuclear family. The term ''nuclear family'' was popularize ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear DNA
Nuclear DNA (nDNA), or nuclear deoxyribonucleic acid, is the DNA contained within each cell nucleus of a eukaryotic organism. It encodes for the majority of the genome in eukaryotes, with mitochondrial DNA and plastid DNA coding for the rest. It adheres to Mendelian inheritance, with information coming from two parents, one male and one female—rather than matrilineally (through the mother) as in mitochondrial DNA. Structure Nuclear DNA is a nucleic acid, a polymeric biomolecule or biopolymer, found in the nucleus of eukaryotic cells. Its structure is a double helix, with two strands wound around each other, a structure first described by Francis Crick and James D. Watson (1953) using data collected by Rosalind Franklin. Each strand is a long polymer chain of repeating nucleotides. Each nucleotide is composed of a five-carbon sugar, a phosphate group, and an organic base. Nucleotides are distinguished by their bases: purines, large bases that include adenine and gu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nuclear C*-algebra
In the mathematical field of functional analysis, a nuclear C*-algebra is a C*-algebra such that for every C*-algebra the injective and projective C*- cross norms coincides on the algebraic tensor product and the completion of with respect to this norm is a C*-algebra. This property was first studied by under the name "Property T", which is not related to Kazhdan's property T. Characterizations Nuclearity admits the following equivalent characterizations: * The identity map, as a completely positive map, approximately factors through matrix algebras. By this equivalence, nuclearity can be considered a noncommutative analogue of the existence of partitions of unity. * The enveloping von Neumann algebra is injective. * It is amenable as a Banach algebra. * (For separable algebras) It is isomorphic to a C*-subalgebra of the Cuntz algebra with the property that there exists a conditional expectation from to . Examples The commutative unital C* algebra of (real ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
