| 单词 | nucleus |
| 例句 | Theoretical breakthrough that it was, complementarity did nothing to resolve the paradoxical results emanating from the atomic nucleus. Big Science 2015-07-07T00:00:00Z Most intriguing was the possibility of a chain reaction: if neutrons emitted in fission struck neighboring nuclei and caused them to split, they might in turn emit even more neutrons, producing more fissions. Big Science 2015-07-07T00:00:00Z In other words, alpha particles produced naturally by radium and polonium had exhausted their usefulness as probes of the nucleus. Big Science 2015-07-07T00:00:00Z The helium nuclei will be jammed together still more tightly, so much so that they begin to stick together, the hooks of their short-range nuclear forces becoming engaged despite the mutual electrical repulsion. Cosmos 1980-01-01T00:00:00Z It is a radiating plasma in which the high temperature has stripped some of the electrons from their nuclei. Cosmos 1980-01-01T00:00:00Z They knew they could bombard a uranium atom with neutrons and cause its nucleus to split. Bomb 2012-01-01T00:00:00Z That is, the neutrons stick in the nucleus of the uranium. Bomb 2012-01-01T00:00:00Z “There’s forty-six of those pieces of DNA in every human nucleus. We call those chromosomes —those are the things that were colored bright in that big picture I gave you.” The Immortal Life of Henrietta Lacks 2010-02-02T00:00:00Z This would be rather difficult, however: the black hole would have the mass of a mountain compressed into less than a million millionth of an inch, the size of the nucleus of an atom! A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z Breaking up atomic nuclei, however, requires quite a lot of money and a generous supply of electricity. A Short History of Nearly Everything 2003-05-06T00:00:00Z The remaining neutrons would have decayed into protons, which are the nuclei of ordinary hydrogen atoms. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z Mr. Elijah Karriem removed his own children from Detroit public schools, to start a nucleus of children in the University of Islam. The Autobiography of Malcolm X 1965-01-01T00:00:00Z Within the nucleus, the chromosomes mysteriously move and divide, ranging themselves in age- old patterns that will serve to distribute the determiners of heredity, the genes, to the daughter cells. Silent Spring 1962-09-27T00:00:00Z Very occasionally, a passing neutrino will bang into one of the atomic nuclei in the water and produce a little puff of energy. A Short History of Nearly Everything 2003-05-06T00:00:00Z Radium had passed its prime as an experimental source, for in its natural form, it did not produce particles with the energies necessary for probing heavy nuclei. Big Science 2015-07-07T00:00:00Z Would students living in areas of town that had been the nucleus of Permian talent suddenly find themselves in the Odessa High attendance district? Friday Night Lights: A Town, A Team, And A Dream 1990-01-01T00:00:00Z Cordelia sticks her tongue in the side of her mouth and frowns at the nucleus. Cat's Eye 1988-09-01T00:00:00Z Such a cutting or fission of atomic nuclei occurs in nuclear weapons and conventional nuclear power plants, although it is not carbon that is split. Cosmos 1980-01-01T00:00:00Z Meanwhile the tireless Rutherford, now back at Cambridge as J. J. Thomson’s successor as head of the Cavendish Laboratory, came up with a model that explained why the nuclei didn’t blow up. A Short History of Nearly Everything 2003-05-06T00:00:00Z The nucleus looks like a raspberry, the electrons and their rings look like the' planet Saturn. Cat's Eye 1988-09-01T00:00:00Z The nucleus was discovered by Ernest Rutherford at Cambridge when some of the bombarding particles were bounced back in the direction from which they had come. Cosmos 1980-01-01T00:00:00Z There would be few recognizable pieces of the comet left—perhaps only a smattering of small grains from the non-icy parts of the cometary nucleus. Cosmos 1980-01-01T00:00:00Z The October 1933 conference, which was devoted specifically to “the structure and properties of the atomic nucleus,” was the seventh in the series founded by the Belgian chemist and industrialist Ernest Solvay in 1911. Big Science 2015-07-07T00:00:00Z My nuclei code out the outer membranes of each, and a good many of the enzymes attached to the cristae must be synthesized by me. The Lives of a Cell 1974-01-01T00:00:00Z Every time we add one or more protons and enough neutrons to keep the nucleus together, we make a new chemical element. Cosmos 1980-01-01T00:00:00Z In a cell that is about to divide, changes of the utmost importance occur, first within the nucleus, but eventually involving the entire cell. Silent Spring 1962-09-27T00:00:00Z They were tiny bags, each containing a nucleus, which was a darker blob near the center. The Hot Zone 1994-01-01T00:00:00Z After the war the problem of gravitational collapse was largely forgotten as most scientists became caught up in what happens on the scale of the atom and its nucleus. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z Equally, if a real photon collides with an atom, it may move an electron from an orbit nearer the nucleus to one farther away. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z The RNA of mitochondria matches the organelles’ DNA, but not that of the nucleus. The Lives of a Cell 1974-01-01T00:00:00Z Eventually, once the temperature had dropped to a few thousand degrees, and electrons and nuclei no longer had enough energy to overcome the electromagnetic attraction between them, they would have started combining to form atoms. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z To Jesse Beams he added, “We are finding so many things happening when we bombard nuclei that we are rather bewildered.” Big Science 2015-07-07T00:00:00Z If we bring it close to the uranium ore, which is emitting helium nuclei in a spontaneous nuclear decay, the count rate, the number of clicks per minute, increases dramatically. Cosmos 1980-01-01T00:00:00Z If enough neutrons boiled out of each shattered nucleus with just the right energy, the process might continue on its own until no more uranium nuclei remained to shatter. Big Science 2015-07-07T00:00:00Z And the Mutual served as the nucleus for virtually all other black enterprises in Durham. The Best of Enemies 1996-04-01T00:00:00Z The most gifted among them, who might possibly become nuclei of dis-content, are simply marked down by the Thought Police and eliminated. 1984 1949-06-08T00:00:00Z That news, which broke in January 1939, launched physicists upon flights of learned speculation about the enormous energy released when the uranium nucleus split following its absorption of a stray neutron. Big Science 2015-07-07T00:00:00Z Nevertheless, most of the mass of an atom is in its nucleus; the electrons are by comparison just clouds of moving fluff. Cosmos 1980-01-01T00:00:00Z He suggested that maybe the electrons were not able to orbit at just any distance from the central nucleus but only at certain specified distances. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z Deep inside the atom, hidden far beneath the electron cloud, is the nucleus, generally composed of positively charged protons and electrically neutral neutrons. Cosmos 1980-01-01T00:00:00Z Why, as Arthur Eddington liked to ask, do the nuclei that comprise my elbow not slide effortlessly through the nuclei that comprise the table? Cosmos 1980-01-01T00:00:00Z The electromagnetic attraction between negatively charged electrons and positively charged protons in the nucleus causes the electrons to orbit the nucleus of the atom, just as gravitational attraction causes the earth to orbit the sun. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z My elbow does not slither through the table because atoms have electrons around their nuclei and because electrical forces are strong. Cosmos 1980-01-01T00:00:00Z Lawrence arrived in Belgium only a few weeks after he engaged in a minor dustup with Rutherford, at long range, over the prospects for useful energy from the atomic nucleus. Big Science 2015-07-07T00:00:00Z It revealed that an electron orbiting around the nucleus could be thought of as a wave, with a wavelength that depended on its velocity. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z There was also the problem of how protons with their positive charges could bundle together inside the nucleus without blowing themselves and the rest of the atom apart. A Short History of Nearly Everything 2003-05-06T00:00:00Z Conventional electrodynamic theory demanded that a flying electron should very quickly run out of energy–in only an instant or so–and spiral into the nucleus, with disastrous consequences for both. A Short History of Nearly Everything 2003-05-06T00:00:00Z They live sequestered in a forbidden city in the deep interior, in the nucleus of the cell. Cosmos 1980-01-01T00:00:00Z The picture that nearly everybody has in mind of an atom is of an electron or two flying around a nucleus, like planets orbiting a sun. A Short History of Nearly Everything 2003-05-06T00:00:00Z “I feel that one ought to make a serious attempt to get up to 60 or 70 million volts. . . With such particles, we should begin to learn the true mechanics of the nucleus.” Big Science 2015-07-07T00:00:00Z They knew the splitting nucleus would release energy. Bomb 2012-01-01T00:00:00Z The diagram of the atom has a nucleus, with electrons circling it. Cat's Eye 1988-09-01T00:00:00Z But an impact with a large comet, such as Hailey’s Comet, whose nucleus is perhaps twenty kilometers across, should occur only about once every billion years. Cosmos 1980-01-01T00:00:00Z With their apparatus, a refinement of the Marsden-Geiger box of 1911, they found that ordinary air produced especially frequent scintillations resembling those of hydrogen nuclei, or protons. Big Science 2015-07-07T00:00:00Z If that were true, they asked each other, what would happen if a speeding neutron hit the nucleus of a uranium atom? Bomb 2012-01-01T00:00:00Z I was seeking Brahman, Atman, I wished to destroy myself, to get away from myself, in order to find in the unknown innermost, the nucleus of all things, Atman, Life, the Divine, the Absolute. Siddhartha 1922-01-01T00:00:00Z For white dwarfs, the pressure of the electrons, stripped from their nuclei, holds the star up. Cosmos 1980-01-01T00:00:00Z It not only kept electrons from spiraling catastrophically into the nucleus; it also explained hydrogen’s bewildering wavelengths. A Short History of Nearly Everything 2003-05-06T00:00:00Z Surrounding our Sun is a spherical swarm of giant snowballs composed of ice and rock and organic molecules: the cometary nuclei. Cosmos 1980-01-01T00:00:00Z The awesome power of the neutron star is lurking in the nucleus of every atom, hidden in every teacup and dormouse, every breath of air, every apple pie. Cosmos 1980-01-01T00:00:00Z The egg yolk would be the cell’s nucleus. The Hot Zone 1994-01-01T00:00:00Z The problem was harnessing the power, sustaining it, and manipulating it for an assault on the nucleus. Big Science 2015-07-07T00:00:00Z Since each atom is electrically neutral, the number of protons in the nucleus must exactly equal the number of electrons in the electron cloud. Cosmos 1980-01-01T00:00:00Z Protons and neutrons are packed into the nucleus, while electrons spin around outside. A Short History of Nearly Everything 2003-05-06T00:00:00Z Natural uranium’s fission cross section—that is, the probability that the nucleus would fission under given circumstances—was highly sensitive to the energy of the impinging neutrons. Big Science 2015-07-07T00:00:00Z In her previous bid she had won a district seat with a nucleus of support from the Southside minority community. Friday Night Lights: A Town, A Team, And A Dream 1990-01-01T00:00:00Z By Rutherford’s reckoning, therefore, the helium atom had two orbital electrons and a nucleus comprising four protons and two electrons; radium had 138 electrons and a nucleus of 226 protons and 88 electrons. Big Science 2015-07-07T00:00:00Z In the end, science was going to dictate the course of the NDRC’s program, and the science of the atomic nucleus was on Lawrence’s side. Big Science 2015-07-07T00:00:00Z The neutrons, which contribute nuclear forces of attraction and no electrical forces of repulsion, provide a kind of glue that helps to hold the nucleus together. Cosmos 1980-01-01T00:00:00Z Inside every nucleus within each cell in your body, there’s an identical copy of your entire genome. The Immortal Life of Henrietta Lacks 2010-02-02T00:00:00Z According to conventional nuclear physics, this was extraordinary, even bizarre: nuclei of different weights would be expected to emit disintegration products of widely variable energies, with the heavy elements producing the more energetic recoils. Big Science 2015-07-07T00:00:00Z The electron doesn’t fly around the nucleus like a planet around its sun, but instead takes on the more amorphous aspect of a cloud. A Short History of Nearly Everything 2003-05-06T00:00:00Z Over a barely digested lunch, the three scientists realized that this intermediate molecule had to shuttle from the cell’s nucleus, where genes were stored, to the cytoplasm, where proteins were synthesized. The Gene 2016-06-02T00:00:00Z It was in our view essential to build up a nucleus of trained men who would be able to provide the leadership which would be required if guerrilla warfare started. Long Walk to Freedom 1994-01-01T00:00:00Z That is, their nucleus is naturally unstable—particles break away from the nucleus and shoot out at high speeds. Bomb 2012-01-01T00:00:00Z I only hope I can retain title to my nuclei. The Lives of a Cell 1974-01-01T00:00:00Z The DNA of mitochondria is qualitatively different from the DNA of animal cell nuclei and strikingly similar to bacterial DNA; moreover, like microbial DNA, it is closely associated with membranes. The Lives of a Cell 1974-01-01T00:00:00Z He did so by inventing a serviceable method for artificially driving subatomic particles into the nucleus with enough energy to give physicists a clear picture of what it was made of. Big Science 2015-07-07T00:00:00Z Two protons and two neutrons are the nucleus of a helium atom, which turns out to be very stable. Cosmos 1980-01-01T00:00:00Z Theoretically, as the uranium nucleus split in two, more neutrons would break free and fly off on their own. Bomb 2012-01-01T00:00:00Z Ernest Rutherford depicted the atom as a miniature solar system, with negatively charged electrons surrounding a tiny yet massive nucleus consisting of positively charged protons and negatively charged electrons. Big Science 2015-07-07T00:00:00Z We carry stores of DNA in our nuclei that may have come in, at one time or another, from the fusion of ancestral cells and the linking of ancestral organisms in symbiosis. The Lives of a Cell 1974-01-01T00:00:00Z Within a few days, he proposed a solution: the protons were disintegration products not of the targets but of the deutons themselves, which were “exploding” upon contact with the atomic nuclei. Big Science 2015-07-07T00:00:00Z The neutron star at the center of the Crab Nebula is an immense atomic nucleus, about the size of Manhattan, spinning thirty times a second. Cosmos 1980-01-01T00:00:00Z The atom as a whole carried a neutral charge: the negative charges of its orbital electrons balanced the positive charge of the nucleus, the latter created by an excess of protons over electrons. Big Science 2015-07-07T00:00:00Z A normal hydrogen atom has a nucleus with just one proton and no neutrons. Bomb 2012-01-01T00:00:00Z The sensitive counter clicks when exposed to gamma rays or to such high-energy charged particles as protons and helium nuclei. Cosmos 1980-01-01T00:00:00Z The strong force binds atoms together; it’s what allows protons to bed down together in the nucleus. A Short History of Nearly Everything 2003-05-06T00:00:00Z This method derived from the theories of the Russian physicist George Gamow, who deduced from quantum mechanics that the occasional particle from even a moderately energetic beam could penetrate the nucleus. Big Science 2015-07-07T00:00:00Z In October 1958, with Mother Langley as the nucleus, the US government fused all the competing operations, along with the Jet Propulsion Laboratory, into the NACA. Hidden Figures 2016-09-06T00:00:00Z There it sat, perfect as a fresh-laid egg on the dead sea bottom, the only nucleus of light and warmth in hundreds of miles of lonely wasteland. The Martian Chronicles 1950-01-01T00:00:00Z This model explained quite well the structure of the simplest atom, hydrogen, which has only one electron orbiting around the nucleus. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z He called the molecule nuclein because it was concentrated in a cell’s nucleus. The Gene 2016-06-02T00:00:00Z Three helium nuclei make a carbon nucleus; four, oxygen; five, neon; six, magnesium; seven, silicon; eight, sulfur; and so on. Cosmos 1980-01-01T00:00:00Z The fourth category is the strong nuclear force, which holds the quarks together in the proton and neutron, and holds the protons and neutrons together in the nucleus of an atom. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z The kernel, Rutherford concluded, was the atomic nucleus. Big Science 2015-07-07T00:00:00Z The RNA copy of a gene then moved from the nucleus to the cytosol, where its message was decoded to build a protein. The Gene 2016-06-02T00:00:00Z An atom, Rutherford realized, was mostly empty space, with a very dense nucleus at the center. A Short History of Nearly Everything 2003-05-06T00:00:00Z Theory dictated that if the supposed disintegration were occurring within the nucleus’s electric field, the production of protons and neutrons would diminish as the targets got heavier. Big Science 2015-07-07T00:00:00Z On a smaller scale, the electrical forces that cause the electrons to orbit round the nucleus in an atom would behave in the same way as gravitational forces. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z In K-capture, the nucleus absorbs one of the two electrons from its innermost electron “shell”— the “K” shell—thereby transforming a nuclear proton into a neutron. Big Science 2015-07-07T00:00:00Z That’s why the nuclei of atoms are so compacted and dense and why elements with big, crowded nuclei tend to be so unstable: the strong force just can’t hold on to all the protons. A Short History of Nearly Everything 2003-05-06T00:00:00Z It was Ernest’s destiny to begin his career at a moment when physics had hit a brick wall in its understanding of the atomic nucleus. Big Science 2015-07-07T00:00:00Z Ninety cuts and you come to a carbon atom, with six protons and six neutrons in its nucleus and six electrons in the exterior cloud. Cosmos 1980-01-01T00:00:00Z Could the force of the collision cause the uranium nucleus to stretch and stretch—-just like a liquid drop—until it split? Bomb 2012-01-01T00:00:00Z Thus the electrons would either escape from the atom altogether or would spiral into the nucleus. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z Cytoplasm will flow easily from one to the other, the nuclei will combine, and it will become, for a time anyway, a single cell with two complete, alien genomes, ready to dance, ready to multiply. The Lives of a Cell 1974-01-01T00:00:00Z If you make the ninety-first cut of the apple pie, if you slice a carbon nucleus, you make not a smaller piece of carbon, but something else—an atom with completely different chemical properties. Cosmos 1980-01-01T00:00:00Z That suggested that the activity resulted not from fission but from some other reaction—most likely the absorption of a neutron by the uranium nucleus. Big Science 2015-07-07T00:00:00Z The 5 x 109 bits of information in our encyclopaedia of life—in the nucleus of each of our cells—if written out in, say, English, would fill a thousand volumes. Cosmos 1980-01-01T00:00:00Z However, in 1932 a colleague of Rutherford’s at Cambridge, James Chadwick, discovered that the nucleus contained another particle, called the neutron, which had almost the same mass as a proton but no electrical charge. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z Atoms would literally be crushed together, their electrons forced into the nucleus, forming neutrons. A Short History of Nearly Everything 2003-05-06T00:00:00Z The nucleus of an atom is tiny–only one millionth of a billionth of the full volume of the atom–but fantastically dense, since it contains virtually all the atom’s mass. A Short History of Nearly Everything 2003-05-06T00:00:00Z Called "On the Constitutions of Atoms and Molecules," the paper explained how electrons could keep from falling into the nucleus by suggesting that they could occupy only certain well-defined orbits. A Short History of Nearly Everything 2003-05-06T00:00:00Z Scientists cut HeLa cells in half to show that cells could live on after their nuclei had been removed, and used them to develop methods for injecting substances into cells without destroying them. The Immortal Life of Henrietta Lacks 2010-02-02T00:00:00Z During reproduction, the helices separate, assisted by a special unwinding protein, each synthesizing an identical copy of the other from nucleotide building blocks floating about nearby in the viscous liquid of the cell nucleus. Cosmos 1980-01-01T00:00:00Z Their existence had been predicted in 1934 by Japanese physicist Hideki Yukawa, who speculated that they carried the force that binds the atomic nucleus together, counteracting the mutual electromagnetic repulsion of its positively charged protons. Big Science 2015-07-07T00:00:00Z I had never bargained on descent from single cells without nuclei. The Lives of a Cell 1974-01-01T00:00:00Z But if atoms are so small and empty and the nuclei smaller still, why does the table hold me up? Cosmos 1980-01-01T00:00:00Z There he was immersed in an effort to produce high-energy protons to probe the atomic nucleus, using his balky Tesla coils and Van de Graaff generators. Big Science 2015-07-07T00:00:00Z Eventually alpha rays were identified as helium atoms stripped of their electrons—that is, helium nuclei-—and beta rays as energetic electrons. Big Science 2015-07-07T00:00:00Z The conclusion was inescapable: Cockcroft and Walton had fired a proton into lithium, which in its most common form has a nucleus of three protons and four neutrons. Big Science 2015-07-07T00:00:00Z “Preliminary experiments,” he wrote, “indicate that there are probably no serious difficulties in the way of obtaining protons having high enough speeds to be useful for studies of atomic nuclei.” Big Science 2015-07-07T00:00:00Z Bohr had recently suggested that the nucleus of an atom might act like a “wobbly droplet” of liquid. Bomb 2012-01-01T00:00:00Z All the while, little cytoplasmic factories work 24/7, cranking out sugars, fats, proteins, and energy to keep the whole thing running and feed the nucleus—the brains of the operation. The Immortal Life of Henrietta Lacks 2010-02-02T00:00:00Z Atoms have a central core, or nucleus, made up of protons and neutrons packed tightly together. Bomb 2012-01-01T00:00:00Z When a “translation request” was generated by a cell, a photocopy of the original was summoned from the vault of the nucleus. The Gene 2016-06-02T00:00:00Z Every ten miles along the traveled routes a general store and blacksmith shop happened, and these became the nuclei of little towns, Bradley, King City, Greenfield. East of Eden 1952-09-01T00:00:00Z But the nucleus is a hundred thousand times smaller still, which is part of the reason it took so long to be discovered.* Cosmos 1980-01-01T00:00:00Z The nucleus of a uranium atom usually has a total of 238 protons and neutrons. Bomb 2012-01-01T00:00:00Z No one could explain how such massive particles could fit in the nucleus; or how, once wedged there, the devilishly energetic particles could be made to stay put. Big Science 2015-07-07T00:00:00Z The great tail is blown away from the icy nucleus of the comet by a wind of protons and electrons from the Sun, which has set below this horizon. Cosmos 1980-01-01T00:00:00Z The horizontal rows, meanwhile, arrange the chemicals in ascending order by the number of protons in their nuclei–what is known as their atomic number. A Short History of Nearly Everything 2003-05-06T00:00:00Z The trouble with this was that the laws of mechanics and electricity, before quantum mechanics, predicted that the electrons would lose energy and so spiral inward until they collided with the nucleus. A Brief History of Time: And Other Essays 1988-01-01T00:00:00Z Rutherford's discovery of the atomic nucleus was done with a grant of £70. Steven Weinberg: 'I wanted to be on the in – privy to all the secrets of physics' 2013-03-03T00:05:05Z Generation Terrorists, Gold Against The Soul and the Holy Bible were the flawed nucleus of a compelling legacy. Three strikes ... 2010-05-28T23:06:00Z Whatever else it achieved, the CP Historians Group, about which Hobsbawm wrote an authoritative essay in 1978, certainly provided a nucleus for many of his first steps as a major historical writer. Eric Hobsbawm obituary 2012-10-01T09:59:14Z For example, is a trillionth the size of the nucleus of an atom actually possible? How small can things be and still exist? 2012-11-07T16:15:02Z Specifically, she wanted to find out what causes one X chromosome to be switched off and one to stay on, even though they share the same cell nucleus. Edith Heard: 'We can't undo what our parents have given us in terms of our genes' 2013-06-22T23:05:02Z And as the nucleus of her very own marching band, Beyoncé sounds right at home, going after huge notes in a riptide of golden brass and martial rat-a-tat. Review | If ‘Homecoming’ doesn’t convince you of Beyoncé’s greatness, nothing will 2019-04-17T04:00:00Z The atomic reality that Lucretius describes is not an isolated phenomenon—it is not a separate realm of electrons and nuclei, electromagnetic fields, particles and waves. The Slowness of Literature and the Shadow of Knowledge 2019-11-06T05:00:00Z That scene is kind of the nucleus of the show to me. He Gives ‘Atlanta’ Anxiety. And That’s a Good Thing. 2018-05-09T04:00:00Z She was talking about the wide network of players who have drawn inspiration from Oliveros’s example — but also the specific nucleus of artists she described as the composer’s “musical offspring.” Claire Chase Uses Her New Platform to Showcase a Hero 2023-01-19T05:00:00Z So here you are, in the thumping nucleus of the $45 billion global art market, home to 250 or more galleries of contemporary art. 10 Galleries to Visit Now in Chelsea 2017-04-27T04:00:00Z “I remember one Chinese grocery store opened across from City Hall, and a few restaurants formed around that nucleus.” The Best Asian Food in North America? Try British Columbia 2018-06-04T04:00:00Z The makeshift quartet would mark the beginning of three major lineup shifts over the next several years, with various side musicians clustering around the mainstay nucleus of the McCartneys and the ever-faithful Laine. Wings was a better band than Paul McCartney or his critics think 2018-12-14T05:00:00Z Our temperature is regulated in the limbic system, and our biological clocks tick away via rhythmic neurons in these limbic nuclei. Touring the brain 2012-09-01T20:00:00Z When his brothers Charles and Leroy Jr. joined the next year, the nucleus of the Hi recording band was in place. Teenie Hodges, genre-defining Memphis player, dies Now their backyard serves as the nucleus for the much-expanded garden that this family of five cooks from today. Raise Your Own Veggies 2010-05-28T16:19:00Z It’s no coincidence that Copenhagen, home of the Global Fashion Summit, emerged as the nucleus of fashion’s climate awakening. Ganni Girls Like to Have Fun 2022-05-19T04:00:00Z Neurally, images of victims activate the nucleus accumbens, an area central to the brain’s reward and pleasure circuit. As Fitbits for Feelings Emerge, Whither Empathy? 2014-05-23T04:00:00Z The last Kalinago remnants combined on Dominica, and fought on until 1903, when they were granted a reservation by the British government — the nucleus of what is now the Kalinago Territory. What Dominica is: Beautiful, natural. What it’s not: Cluttered with resorts. 2015-10-15T04:00:00Z Eventually the core of the star reaches around 180,000,000°F, a temperature at which helium nuclei now travel fast enough to collide and fuse to form carbon. When the universe began 2012-07-22T12:00:00Z Hunter was the nucleus of the group and planned the natural gas investment strategies. Hedge fund’s wild side: The man who lost $8 billion 2013-06-01T20:30:00Z Then, suddenly, something new arrived on the scene, complicated “eukaryotic” cells, complete with nuclei, tightly packed chromosomes and all kinds of specialised compartments. Heart of the matter 2015-04-30T04:00:00Z "We believe the nucleus of this case is around the Garden of Eden," Detective Dennis English said. Police seek help solving 2002 LA double killing 2011-02-18T23:20:17Z So the nucleus of an oxygen atom is surrounded by eight electrons. Russian scientist created a chemistry tool with room for discovery 2019-03-05T05:00:00Z We write something that we like, then I work by phone with Tim Lauer, who is the keyboard player in the nucleus of the band that Daniel will use. Q&A with Burt Bacharach: How the 92-year-old composer has kept working during the pandemic 2020-10-08T04:00:00Z As they began sharing ideas, the nucleus of “Black Rage” developed. William H. Grier, Psychiatrist Who Delved Into ‘Black Rage’ in 1960s, Dies at 89 2015-09-11T04:00:00Z For it if happens by chance why do they not fall just as well with five corners or with seven? … who carved the nucleus, before it fell, into six horns of ice?” Snowmaking is the most dangerous part of skiing 2013-02-23T13:00:00Z But the latest also saw him drift further from pop music’s nucleus — a distance felt on his latest album, “Man of the Woods.” Review | Justin Timberlake may feel at home in the woods, but the arena is where he shines 2018-03-19T04:00:00Z These two bind the particles within the nucleus of the atom. Listen up, Marco Rubio!: Science lessons for the tea party 2012-11-25T19:00:00Z And everyone I spoke to told me that the classic Toronto Chinatown, with the intersection of Spadina Avenue and Dundas Street West as its nucleus, while charming, had begun to decline in terms of quality. Trekking to the Toronto Suburbs for Excellent, Cheap Chinese Food 2016-10-05T04:00:00Z Ms. Johnson spent her days at Paraphernalia and her nights at Max’s Kansas City, the nucleus as she puts it, of “this sparkler of a world.” Betsey Johnson: A Role Model, Still 2015-02-13T05:00:00Z Smash the nuclei of hydrogen together at almost the speed of light, and watch the fragments fly, 20 million times a second. Christmas gifts 2012: the best science books 2012-11-28T13:00:01Z Or the droplet nuclei land on an object or surface, making it infectious. Coronavirus and Sex: Questions and Answers 2020-03-30T04:00:00Z “That group of people was hugely instrumental in that. That was a very small nucleus of what ended up being a very influential musical journey, musical genre.” Lost punk record from Duff McKagan, Mother Love Bone drummer surfaces after nearly 40 years 2021-04-12T04:00:00Z The exception to this is simple hydrogen, whose nucleus is a sole proton. "The Big Bang Theory" and real science, from Leonard's wedding vows to the "Time Machine" prop 2019-05-16T04:00:00Z Geography has always been the traffic-plagued city’s challenge — its art world lacks a nucleus, or rather, it has an abundance of them dispersed across too many neighborhoods. | An Outlaw Art Fair Sets up Shop on L.A.’s Frontier 2014-02-04T00:08:30Z She and her husband, Thurston Moore, were the nucleus of Sonic Youth, one of the most influential bands of an era when there was still an alternative scene to cross over from. Music Review: The Julie Ruin, Body/Head and Majical Cloudz Play Northside 2013-06-14T21:48:15Z It felt nice to be with someone who cared so much about me, but my nucleus accumbens was quiet. For a Broken Heart, Take Tylenol 2016-06-03T04:00:00Z The total number of neutrons and protons in an atom’s nucleus gives its atomic weight. "The Big Bang Theory" and real science, from Leonard's wedding vows to the "Time Machine" prop 2019-05-16T04:00:00Z When I met Boris in his office, the nucleus of his dominion, I glanced at his library. Russell Brand: what I made of Morning Joe and Question Time 2013-06-28T19:06:09Z Today, the museum is a cavernous and commanding urban nucleus that, according to Ms. González, aims to draw as many local visitors as it does tourists from abroad. Colombia’s Museum of Modern Art Celebrates Its 40th Year 2018-03-10T05:00:00Z Little Pepper began life a dozen years ago in the competitive Chinese nucleus of downtown Flushing, Queens. Little Pepper Packs More Than Heat in College Point 2016-02-23T05:00:00Z As the nucleus of an Academy such as has long been wanted in England, it has our warmest good wishes. Authors and life of poverty: From the archive, 18 Feb 1852 2013-02-18T07:00:00Z The nucleus of the egg is removed so there is no DNA and it is replaced with one of the millions of cells that have been grown in the laboratory. North Carolina couple paid $25G to clone beloved cat 2019-06-27T04:00:00Z Maybe he actually is the centre: the last action hero, rock-solid nucleus of popular culture, whose flexing biceps are all that’s holding civilisation – or at least Hollywood – together. Let’s rock! Why Dwayne Johnson is the new Schwarzenegger 2018-07-14T04:00:00Z There, shielded from most sources of contaminating noise, researchers have spent more than a year’s worth of time looking for flashes of light emanating from WIMPs striking xenon nuclei. Physics confronts its heart of darkness: Cracks showing in dominant explanation for dark matter 2016-09-01T04:00:00Z Brain scans showed a direct relationship between activity in people's nucleus accumbens and how much they were willing to pay for a song. Brain's music pleasure zone identified 2013-04-11T18:32:58Z “There’s a lot of the nucleus of what inspired me and countless other people to want to play guitar and go out and play in clubs and get in bands,” Gossard says. Lost punk record from Duff McKagan, Mother Love Bone drummer surfaces after nearly 40 years 2021-04-12T04:00:00Z It’s also the story of a small business—akin to a low-budget production office—which the tangled web of personal and professional connections turns into a splitting nucleus of emotional fury. Highlights from the 2017 Sundance Film Festival 2017-01-25T05:00:00Z Their sole remaining connection to our familiar world would be through the weak nuclear force, which is stronger than gravity but only active across tiny distances on the scale of atomic nuclei. Physics confronts its heart of darkness: Cracks showing in dominant explanation for dark matter 2016-09-01T04:00:00Z For their own vision of “The Seagull,” the nucleus of actors formed The Seagull Project, and became producers. Veteran actors launch Chekhov’s ‘The Seagull’ 2013-01-17T22:12:23Z The Taopu opening party was one of many shows timed to coincide with the biennale, which is a nucleus for many satellite events, both official and unofficial. Scene/ Seen in ... Shanghai: Shanghai Biennales Whet the Appetite for Art 2010-12-10T18:13:00Z The pianist Bruce Levingston brings heart-wrenching vulnerability and tenderness to a series of preludes, fugues and fantasies by Bach that form the spiritual nucleus of the CD. Classical Playlist: Schumann, Bach, Prokofiev and More 2015-03-04T05:00:00Z The missiles come again and again in Kharkiv — the nucleus of the Ukrainian avant-garde in the early days of the Soviet Union. The War in Ukraine Is the True Culture War 2022-07-15T04:00:00Z It's good that Jeff and I are the nucleus, going back to the beginning. Wilco, on a roll, plays Paramount Tuesday 2012-02-02T21:16:14Z In the general absence of parks and open spaces, the street is the nucleus of communal life in Mumbai. In Transit: In the Streets, Mumbai Celebrates the Arts 2011-01-24T11:00:42Z "A film school like SFI is a great asset to train and develop creative talent," said Engen, "it provides a nucleus for an industry to coalesce around." Seattle makes beautiful music ? for films and videogames 2012-05-02T22:20:06Z Capri, then, is the nucleus around which their lives, and his accounts, orbit, but he flits to and from, never constraining himself to its four square miles. Review | How Capri became a hotbed of hedonism 2019-03-13T04:00:00Z The E Street Nation - a world-wide community wrapped around the nucleus of Bruce Springsteen and the E Street Band - has lost its beloved Big Man, Clarence Clemons. E Street nation remembers beloved Big Man Clemons 2011-06-19T18:46:04Z If we cannot trust him to transcribe a quotation, why should we trust any of his scientific speculations about what the nucleus accumbens and the ventral striatum are up to? Jonah Lehrer and the trouble with facts 2012-08-03T21:55:14Z The skull, the candle, the family album, the blurred forest: so much of Mr. Richter’s painting, in abstract or representational modes, has orbited around the absent nucleus of the concentration camp. The Sublime Farewell of Gerhard Richter, Master of Doubt 2020-03-05T05:00:00Z She wondered whether their positioning in the nucleus was related to these epigenetic changes. Edith Heard: 'We can't undo what our parents have given us in terms of our genes' 2013-06-22T23:05:02Z This led her to think of using Ring Around the Rosie as a nucleus for her workshop. Spare Times for Children for Jan. 2-8 2015-01-01T05:00:00Z Hard work, determination, faith and resilience are the nucleus of success. Meditating on life with hip-hop entrepreneur Russell Simmons 2017-06-26T04:00:00Z When the dancing starts, that nucleus begins to peel open, row upon row. Review: Paul Taylor Jump-Starts His Season With a Frisky Burl Ives 2016-03-16T04:00:00Z “It was a group of friends, all in the know, a nucleus of hip in America,” Mr. Wilentz said of the 1964 tour. A Dylan Insider’s Back Pages 2014-08-07T04:00:00Z At the heart of each flake is a nucleus of dust or pollen from which the crystals grow. Snowmaking is the most dangerous part of skiing 2013-02-23T13:00:00Z Unlike nuclear fission — which splits big nuclei into smaller ones and is used in today’s nuclear power plants — fusion occurs when two small nuclei merge to become one larger one, releasing energy. The Miracle Cure for All Our Energy Woes? 2021-08-19T04:00:00Z Often the plot and all the actions of a movie are derived from a nucleus of psychological illumination. Saul Bellow, Film Critic 2015-05-11T04:00:00Z Babcock is equally passionate about the two dozen sculptures of women that form the nucleus of the exhibition, which are all displayed three-dimensionally, in dramatically lit cases. In Search of Enheduanna, History’s First Named Author 2022-11-09T05:00:00Z Its geographical range also forces a reassessment of the idea that Pop Art radiated solely from a small nucleus of artists based in New York and London. Colour me beautiful 2015-09-10T04:00:00Z The shape of the crew’s patch represents the international atomic symbol, showing an atom with particles called electrons circling the nucleus. NASA crews show their creativity in long history of mission patches 2018-07-16T04:00:00Z He took a skin cell and, using a virus, inserted four specific bits of DNA into the skin cell's nucleus. Look, no embryos! The future of ethical stem cells 2011-03-13T00:05:26Z In her last month of pregnancy Byron wrote off Annabella as “a nice little sullen nucleus of concentrated savageness.” Mad, Bad and Dangerous: The Legacy Left to Byron’s Wife and Daughter 2018-11-30T05:00:00Z Six loosely formed villages, each with a small shopping center and high school, were arranged around the Town Center, whose nucleus was the mall. Here’s a suburban experiment cities can learn from 2017-07-11T04:00:00Z Received wisdom is that the city’s art schools are its initial draw and its social nuclei. The Los Angeles Art Scene Looks to the World 2019-02-28T05:00:00Z Today’s researchers were able to obtain cell nuclei from the tissues collected in the 1970s. De-extinction won’t make us better conservationists! 2013-09-06T12:40:00Z “I started thinking maybe I did my job too well, and it might have been the nucleus of an idea for someone to say: ‘Hey, let’s crash a plane into the White House.’” Why are we hooked on films about mass destruction? 2016-06-18T04:00:00Z With a new family nucleus and superstardom on the horizon, however, slowing down has still proved challenging. Emerging From Migos as His Own Man: The Metamorphosis of Offset 2018-11-29T05:00:00Z Traumatised war veterans, for example, show nucleus accumbens dopamine surges when they are reminded of the sounds of battle, something they find deeply aversive. The unsexy truth about dopamine 2013-02-03T00:05:19Z That meant taking pictures on the microscope at an extremely high resolution so that every nucleus of every single cell was visible on the blown-up print. At M.I.T., Science Embraces a New Chaos Theory: Art 2016-03-04T05:00:00Z Now, a selection of 80 of these vivid, humorous, aggressive, truthful pages form the nucleus of “Louise Bourgeois, Freud’s Daughter,” which opened this month at the Jewish Museum in New York. Louise Bourgeois Shares Her Deepest Secrets 2021-05-19T04:00:00Z His book appeared in England under the main title “In the Centre,” as if Oppenheimer were a nucleus and not a person. Books of The Times: ‘Robert Oppenheimer: A Life Inside the Center,’ by Ray Monk 2013-05-27T21:46:27Z They probably provided the nucleus of the warrior bands that supported local leaders who filled the power vacuum following the end of Roman rule. Fresh insights from the UK's oldest museum of Roman remains 2012-08-15T07:00:00Z In the knotty world of internet superfandom, the harshest takes often come from deep inside an artist’s nucleus of support. Katy Perry Woke Up. She Wants to Tell You All About It. 2017-06-14T04:00:00Z We are talking about a book Charles wants to write about the cell nucleus, so naturally, this leads to all sorts of hilarity. This is a story about all the ways to fall in love and . . . grilled cheese. 2019-01-20T05:00:00Z At this high temperature, individual hydrogen nuclei fly around randomly at enormous velocities, making fusion possible via high-speed collisions. When the universe began 2012-07-22T12:00:00Z The central “master” clock of the suprachiasmatic nucleus, a collection of about 20,000 oscillating nerve cells in the hypothalamus of the brain, is intricately linked with daylight from the optic nerve of the eye. Sleep-wake cycle: why it’s vital to watch your biological clock 2016-05-01T04:00:00Z When we understand the gravity and tragedy of a loss of thousands, it is through reason, not generally because of the effects of images, empathy, and nucleus accumbens activation. As Fitbits for Feelings Emerge, Whither Empathy? 2014-05-23T04:00:00Z But the nucleus, or center, of an atom is about 10,000 times as big as the ripple of the gravitational wave. What are gravitational waves? Ripples across the universe. 2016-03-01T05:00:00Z Some readers will be captivated by the labyrinthine structure of the nucleus, others may find this hard to understand. Splitting atoms, sharing secrets 2015-02-05T05:00:00Z The physicists soon found that the mass of an atom consists mostly of the protons and neutrons in its nucleus. "The Big Bang Theory" and real science, from Leonard's wedding vows to the "Time Machine" prop 2019-05-16T04:00:00Z Murch is already both: a beautiful nucleus, atomising art for us all. Walter Murch: searching for the sound of the God particle 2013-06-20T16:00:02Z In her newest “Infinity” room, a single, suspended globe of light illuminates the mirrored chamber, then a second, then a third, until the room becomes a constellation of lanterns with you at its nucleus. Kusama Arrives. Is It Worth Your Time to Wait in Line? 2019-11-08T05:00:00Z For those of you who bombed physics: A cyclotron is a particle-accelerating instrument that uses high-frequency electricity and a magnet to create and focus a stream of protons to probe the nucleus of an atom. U-Md. professor hooks students on this particle accelerator — by building one 2016-09-07T04:00:00Z Chances are that when you recount a great meal to a friend, you don’t say that it really lit up your nucleus of the solitary tract. A Rose Is a Rose Is … Your Experience of a Rose? A Writer Plumbs Consciousness 2019-11-20T05:00:00Z As Chinatown ID grows — and Smith believes it’s the next neighborhood in line to do so — he said it’s important that the artists remain the “nucleus” of the neighborhood, rather than getting priced out. Seattle artists fundraise to buy former INS building, now home to many artist studios 2022-03-15T04:00:00Z “Twin Peaks” slows it down, to show you the universe in the nucleus of an atom. Inhaling Slowly for ‘Twin Peaks,’ Spewing Fire for ‘Game of Thrones’ 2017-08-24T04:00:00Z “I applaud them in stretching their tentacles and bringing it back to the nucleus,” said Kevin Liles, the veteran hip-hop executive whose label, 300 Entertainment, distributes Migos’s music in partnership with Quality Control. Rap Trio Migos Cracks the Code to a No. 1 Hit, One Step at a Time 2017-01-25T05:00:00Z “I’m very concerned about not being the nucleus, not being in the spotlight,” he said. Luke Janklow: Not Exactly Bookish 2013-06-14T20:57:36Z The most dramatic picture, “Ultimate Core, Number 2,” masses white spirals around a gold nucleus on a black field. In the galleries: At Osuna, scarlet makes a splash amid Hamami’s black-and-white 2016-06-30T04:00:00Z As its name suggests, nuclear fusion involves the nuclei of two hydrogen atoms sticking together. When the universe began 2012-07-22T12:00:00Z And yet the idea that the mass of each atom is centered at its nucleus came much later. "The Big Bang Theory" and real science, from Leonard's wedding vows to the "Time Machine" prop 2019-05-16T04:00:00Z In an infected animal, cGAS senses viral DNA in the cytoplasm, the gelatinous liquid in a cell that surrounds the nucleus; in an uninfected organism, DNA is confined within the nucleus. How bacteria recognize viral invasion and activate immune defenses 2023-11-15T05:00:00Z So the most efficient ice-nucleating particles are biological in origin, produced in bacteria and fungi, and even insects, but the molecular basis and precise mechanisms of "biological ice nuclei" has not been well understood. Forming ice: There's a fungal protein for that 2023-11-13T05:00:00Z As a result, the particles become a condensation nucleus on which a water droplet forms -- this is the only way to create fog or a cloud. Aerosols: When scents influence our climate 2023-11-13T05:00:00Z When he adjusted the image contrast, details missed by the whistleblowers swam into view: In the 2004 paper, superimposed square boxes cover the nuclei of some brain cells. Misconduct concerns, possible drug risks should stop major stroke trial, whistleblowers say 2023-11-12T05:00:00Z But during one specific stage of stellar fusion, it’s possible for those electrons to instead be absorbed into atomic nuclei, removing that pressure. See JWST’s Spectacular New View of the Crab Nebula 2023-11-10T05:00:00Z However, because bacteria lack nuclei, they must take another approach. How bacteria recognize viral invasion and activate immune defenses 2023-11-15T05:00:00Z This effort is the first to build a synthetic genome of a eukaryote -- a living organism with a nucleus, such as animals, plants and fungi. Scientists take major step towards completing the world's first synthetic yeast 2023-11-08T05:00:00Z These small clusters are very mobile and quickly collide with larger particles such as pollen or soot -- thus they disappear and no longer play a role as condensation nuclei. Aerosols: When scents influence our climate 2023-11-13T05:00:00Z The discovery also allows them to show for the first time that the subthalamic nucleus, a structure in the brain that controls voluntary movements, may also play a role in the development of depression. Location of strong sense of discomfort in brain found 2023-11-06T05:00:00Z So far, scientists have generated artificial genomes for several viruses and bacteria, but yeast would be the first eukaryote—the group of organisms, such as flies, snakes, and humans, whose cells have a nucleus. Synthetic yeast project unveils cells with 50% artificial DNA 2023-11-08T05:00:00Z Algae, along with all other plants and animals, are eukaryotes, more complex life whose cells have a membrane-bound nucleus. Window to the past: New microfossils suggest earlier rise in complex life 2023-11-07T05:00:00Z Furthermore, the study advanced quantitative understanding of gas flows around the active galactic nucleus. Mystery resolved: Black hole feeding and feedback at the center of an active galaxy 2023-11-06T05:00:00Z Kozorovitskiy and her team examined four regions of the brain responsible for dopamine release: the prefrontal cortex, nucleus accumbens, hypothalamus and dorsal striatum. One sleepless night can rapidly reverse depression for several days 2023-11-02T04:00:00Z The researchers used optogenetics to ensure they only stimulated the subthalamic nucleus and not any other brain tissue. Location of strong sense of discomfort in brain found 2023-11-06T05:00:00Z And repositioning chromosomes within the nucleus showed that confining them near its boundary led to gene silencing, he and his co-workers revealed in Molecular Cell. Synthetic yeast project unveils cells with 50% artificial DNA 2023-11-08T05:00:00Z Japan’s JT-60SA uses magnetic fields from superconducting coils to contain a blazingly hot cloud of ionized gas, or plasma, within a doughnut-shaped vacuum vessel, in hope of coaxing hydrogen nuclei to fuse and release energy. First plasma fired up at world’s largest fusion reactor 2023-10-31T04:00:00Z However, the research team pinpointed the location where the foreground molecular gas was absorbing the light from the active galactic nucleus shining brightly in the background. Mystery resolved: Black hole feeding and feedback at the center of an active galaxy 2023-11-06T05:00:00Z By contrast, the nucleus accumbens and hypothalamus appeared to be most involved in the hyperactivity behaviors but were less connected to the antidepressant effect. One sleepless night can rapidly reverse depression for several days 2023-11-02T04:00:00Z The researchers had identified markers in previous studies that were now used to accurately distinguish the subthalamic nucleus from surrounding structures. Location of strong sense of discomfort in brain found 2023-11-06T05:00:00Z The MRI device creates a very strong magnetic field which interacts with the tiny magnetic fields of the hydrogen nuclei in the body. A miniature magnetic resonance imager made of diamond 2023-10-19T04:00:00Z These nuclei decay to stability, liberating energy that powers an explosive 'kilonova' transient, a bright emission of light that rapidly fades in about a week. Grasping the three-dimensional morphology of kilonovae 2023-10-18T04:00:00Z As the absorbing material consistently resides between the active galactic nucleus and Earth, this indicates that the team has successfully captured the accretion flow heading toward the active galactic nucleus. Mystery resolved: Black hole feeding and feedback at the center of an active galaxy 2023-11-06T05:00:00Z One double-helix strand of DNA could extend six feet, but it is so tightly coiled that it packs an entire sequence of nucleotides into the tiny nucleus of a cell. Novel hydrogel finds new aptamers, or 'chemical antibodies,' in days 2023-10-16T04:00:00Z The researchers analysed more than three million individual cell nuclei using the technique of RNA sequencing, which reveals each cell's genetic identity. Cell atlases of the human brain 2023-10-12T04:00:00Z It produces vast amounts of energy by fusing together hydrogen nuclei. Can German engineering solve the challenges of fusion? 2023-10-12T04:00:00Z The 3D simulation combines together several areas of physics, including the behavior of matter at high densities, the properties of unstable heavy nuclei, and atom-light interactions of heavy elements. Grasping the three-dimensional morphology of kilonovae 2023-10-18T04:00:00Z Surprisingly, this rate was found to be 30 times greater than what is needed to sustain the active galactic nucleus. Mystery resolved: Black hole feeding and feedback at the center of an active galaxy 2023-11-06T05:00:00Z The facility will generate neutrons by focusing an intense beam of deuterium nuclei on a lithium target. News at a glance: Endangered plants, diversity in clinical trials, and testing fusion reactor walls 2023-10-11T04:00:00Z On the other hand, in humans, they are up to half a meter long and contain thousands of nuclei. Win-win in muscle research: Faster results and fewer laboratory animals thanks to new method 2023-10-12T04:00:00Z The intricate control of cellular metabolism relies on the coordinated and harmonious interplay between the nucleus and mitochondria. Epigenetic regulator MOF drives mitochondrial metabolism 2023-10-09T04:00:00Z This brain nucleus then transmits processed information to the visual cortex and vice versa. Thalamus regulates adaptability of the adult brain 2023-10-06T04:00:00Z Lightning has struck a second time for physicists using lasers to achieve nuclear fusion, in which two atomic nuclei combine into one while releasing enormous amounts of energy. News at a glance: More success for fusion, medical tests under scrutiny, and a grizzly reintroduction 2023-10-04T04:00:00Z "This is exactly the concept we use for the fastest movements that happen in nature outside the atomic nucleus, which is the movement of electrons." Nobel physics prize goes to trio who lit up secrets of the atom 2023-10-03T04:00:00Z This method uses a virus to introduce the so-called Cas9 protein and a specifically designed guide RNA into the organism and thus into the nuclei. Win-win in muscle research: Faster results and fewer laboratory animals thanks to new method 2023-10-12T04:00:00Z At the atomic level, the motions of electrons and nuclei typically take place over the course of attoseconds. Ultra-Fast Laser Trailblazers Win 2023 Nobel Prize in Physics 2023-10-03T04:00:00Z The ETH researchers have become the first to show that the cell nucleus weeds out such DNA rings and deposits them, together with the plasmids coming from outside the cell, in the cell plasma. A hygiene program for chromosomes 2023-10-02T04:00:00Z With the team bringing back the nucleus of the club that performed well after the February trade deadline, Davis believes the Lakers have a “head start” for training camp. Lakers' LeBron James dedicates season to son Bronny 2023-10-02T04:00:00Z Lightning has struck a second time for physicists using lasers to achieve nuclear fusion—the process in which two atomic nuclei combine into one while releasing enormous amounts of energy. Laser-fusion experiment squeezes out even more energy 2023-10-01T04:00:00Z In order to change and study gene function in muscle fibers, all of the muscle fiber nuclei must be changed, which is difficult to achieve. Win-win in muscle research: Faster results and fewer laboratory animals thanks to new method 2023-10-12T04:00:00Z When a nucleus undergoes fission, or splits, several neutrons are released, potentially inducing fission in neighboring nuclei to create the chain reaction. Chi-Nu experiment ends with data to support nuclear security, energy reactors 2023-09-28T04:00:00Z The study also found changes in the distribution of carbon between different cellular compartments, such as the nucleus and cytoplasm, which may be influenced by alpha-synuclein's interaction with DNA and histones. A deep look into the progression of Parkinson's Disease 2023-09-29T04:00:00Z “Really the analysis was, ‘Can we, in pretty short order, assemble a legitimate and sustainable contender around the nucleus that we had?’” Reset and refresh: Wizards avoiding using ‘rebuild’ to describe their rebuild 2023-09-26T04:00:00Z Single nucleus sequencing is a method that uses isolated nuclei -- the part of the cell that contains our DNA information -- instead of whole cells to understand genes and their functions. Genetic code of rare kidney cancer cracked 2023-09-25T04:00:00Z This accumulation of succinate led to expression of immune genes in the nucleus and increased the levels of a protein called MHC on the surface of the tumor. Rewiring tumor mitochondria enhances the immune system's ability to recognize and fight cancer 2023-09-21T04:00:00Z When those neutrons hit the uranium-238 isotope, a fission event, or splitting of the uranium-238 nucleus, can occur and is recorded. Chi-Nu experiment ends with data to support nuclear security, energy reactors 2023-09-28T04:00:00Z To build a protein, sections of the DNA blueprint packed inside the cell's nucleus are transcribed into messenger molecules called mRNA, which are instructions for making proteins. Unzipping mRNA rallies plant cells to fight infection 2023-09-21T04:00:00Z To fit into the tiny cell nucleus, it is condensed around proteins called histones. Strengthening artificial immune cells to fight cancer 2023-09-20T04:00:00Z Researchers from the University of Surrey and the University of Zagreb have found that these drip lines, which define the maximum number of protons and neutrons within a nucleus, change dynamically with temperature. Groundbreaking research shows that the limits of nuclear stability change in stellar environments where temperatures reach billions of degrees Celsius 2023-09-18T04:00:00Z The team tracked the different editing levels by meticulously extracting and sequencing RNA from the nuclei and cell bodies of 200 motor neurons. Individual neurons mix multiple RNA edits of key synapse protein, fly study finds 2023-09-18T04:00:00Z She soon tackled the problem, and together with her nephew Otto Robert Frisch, published an interpretation of the experimental results: the uranium nucleus had split, resulting in the lighter elements. How Antisemitism and Professional Betrayal Marred Lise Meitner’s Scientific Legacy 2023-09-14T04:00:00Z We call elements radioactive when they spontaneously release energy because of unstable nuclei. She Cracked the Mystery of How to Split the Atom, But Someone Else Got the Nobel Prize for the Discovery 2023-09-07T04:00:00Z In women who had smoked cannabis, Hurd and Dow-Edwards found alterations to the fetal brain’s dopamine system, including reduced expression of dopamine receptors in the amygdala and nucleus accumbens, a reward center. As cannabis laws relax, neuroscientist warns of its dangers for developing brain 2023-08-31T04:00:00Z The discovery shows that more nuclei exist within the drip lines for hot nuclei than for cold nuclei. Groundbreaking research shows that the limits of nuclear stability change in stellar environments where temperatures reach billions of degrees Celsius 2023-09-18T04:00:00Z By combining a powerful set of instruments with some experimental savvy, physicists have for the first time detected oxygen-28 — an isotope of oxygen that has 12 extra neutrons packed into its nucleus. Rare Superheavy Oxygen Isotope Is Detected at Last 2023-08-31T04:00:00Z Meitner, a physicist, was the first to realize what the results meant: the nucleus had split. How Antisemitism and Professional Betrayal Marred Lise Meitner’s Scientific Legacy 2023-09-14T04:00:00Z Marissa Moss: But Meitner realizes there's something holding together the nucleus, like what holds together a drop of water. She Cracked the Mystery of How to Split the Atom, But Someone Else Got the Nobel Prize for the Discovery 2023-09-07T04:00:00Z At the puncture site, supersize cells with multiple nuclei quickly closed up the wound. Cells with extra genomes may help tissues respond to injuries—and species survive cataclysms 2023-08-23T04:00:00Z They found that at temperatures up to 10 billion Celsius, the drip lines and the number of bound nuclei have already started to change. Groundbreaking research shows that the limits of nuclear stability change in stellar environments where temperatures reach billions of degrees Celsius 2023-09-18T04:00:00Z But initial observations of the 28O nucleus suggest that this isn’t the case: it disintegrates rapidly after creation, a team reports in Nature today. Rare Superheavy Oxygen Isotope Is Detected at Last 2023-08-31T04:00:00Z I think the nucleus of it really was the bonding experience of thlevee last two episodes of Season 1, both of which I directed, which was Shiv and Tom’s wedding over in England. Why 'Succession' and 'The Menu' director Mark Mylod's focus on wealth is personal 2023-08-24T04:00:00Z They proposed a liquid-drop model of the nucleus, where subatomic particles were held together by strong nuclear forces. She Cracked the Mystery of How to Split the Atom, But Someone Else Got the Nobel Prize for the Discovery 2023-09-07T04:00:00Z In other scenarios, cells fuse to make a single cell with multiple nuclei. Cells with extra genomes may help tissues respond to injuries—and species survive cataclysms 2023-08-23T04:00:00Z The findings challenge the view that drip lines and the number of bound nuclei are not sensitive to the temperature. Groundbreaking research shows that the limits of nuclear stability change in stellar environments where temperatures reach billions of degrees Celsius 2023-09-18T04:00:00Z If the results can be replicated, physicists might need to update theories of how atomic nuclei are structured. Rare Superheavy Oxygen Isotope Is Detected at Last 2023-08-31T04:00:00Z The sphere will soon be filled with 20,000 tons of a liquid scintillator—an organic solution that fluoresces, or scintillates, when excited by a neutrino interacting with nuclei in its atoms. China’s new underground lab could answer long-standing neutrino mystery 2023-08-22T04:00:00Z Meitner realized that the nucleus was not indivisible after all. She Cracked the Mystery of How to Split the Atom, But Someone Else Got the Nobel Prize for the Discovery 2023-09-07T04:00:00Z They found the number of polyploid cells and the number of nuclei and genomes in individual cells varied depending on factors including the size of their wound. Cells with extra genomes may help tissues respond to injuries—and species survive cataclysms 2023-08-23T04:00:00Z The remaining two are more obscure: the strong force binds protons and neutrons together within atomic nuclei, whereas the weak force helps atoms and subatomic particles to fall apart via a form of radioactive decay. Will Scientists Ever Find a Theory of Everything? 2023-08-19T04:00:00Z The strongest force in the Universe is the one that holds together the protons and neutrons in an atom’s nucleus. Rare Superheavy Oxygen Isotope Is Detected at Last 2023-08-31T04:00:00Z The collision will also produce a lower energy neutron that, about 200 microseconds later, will be captured by an atomic nucleus and produce a second flash. China’s new underground lab could answer long-standing neutrino mystery 2023-08-22T04:00:00Z That paper was the first to use the term fission for the splitting apart of the nucleus. She Cracked the Mystery of How to Split the Atom, But Someone Else Got the Nobel Prize for the Discovery 2023-09-07T04:00:00Z The researchers gathered DNA from the cell nucleus and mitochondria within bone samples. In a Stone Age Community, Women Moved While Men Stayed with Family 2023-08-10T04:00:00Z There are two brighter spots, one in the curve and the other in the dot, which could be the galactic nuclei, or the centers of the galaxies, Britt says. NASA just found a question mark in space. What exactly is it? 2023-08-09T04:00:00Z He and other researchers are testing theories about how atomic nuclei are held together by pushing them to extremes. Rare Superheavy Oxygen Isotope Is Detected at Last 2023-08-31T04:00:00Z “To the extent that we can continue to reinforce or add to this nucleus,” he said on July 24, “we’re gonna look to do that and be aggressive as we can.” 'It just didn't work out': Inside the Dodgers' failed pursuit of a trade deadline splash 2023-08-02T04:00:00Z He had cracked the code of atomic structures, determining how atoms are modeled — electrons orbiting a nucleus of protons and neutrons — and helping create quantum theory in the process. Oppenheimer's hero Niels Bohr has a legacy as complicated as the "father of the atomic bomb" 2023-08-02T04:00:00Z Hydrogen exists on Earth in two stable “flavors,” called isotopes: regular hydrogen, which has a single proton for its nucleus, and deuterium, whose nucleus is made of one proton and one neutron. Did Earth’s Water Come from Meteorites? 2023-07-31T04:00:00Z They have a young nucleus, Mike Trout, and a respectable coaching staff. Letters to Sports: Shohei Ohtani stays with Angels, but is that a good deal? 2023-07-29T04:00:00Z One popular way is to load lightweight nuclei, such as oxygen, with excess neutrons and see what happens. Rare Superheavy Oxygen Isotope Is Detected at Last 2023-08-31T04:00:00Z Physicists believe that just one second after the Big Bang, the nuclei of light elements like hydrogen and helium began to form. Helium in Distant Galaxies May Help Explain Why the Universe Exists 2023-07-28T04:00:00Z Oppenheimer once called the atomic bomb “a weapon for aggressors” wherein “the elements of surprise and terror are as intrinsic to it as are the fissionable nuclei.” Movie Review: A bomb and its fallout in Christopher Nolan’s ‘Oppenheimer’ 2023-07-19T04:00:00Z Stars power themselves by fusing the nuclei of lighter atoms into those of heavier atoms. Ultracold Gases Can Probe Neutron Star Guts 2023-07-18T04:00:00Z Functions that are performed by a single column of the mammalian cortex require the communication of separate brain nuclei. How Smart Were Dinosaurs? New Studies Fuel the Debate 2023-07-06T04:00:00Z Current theories state that atomic nuclei with certain numbers of protons and neutrons are inherently stable. Rare Superheavy Oxygen Isotope Is Detected at Last 2023-08-31T04:00:00Z The physics community’s most widely accepted theory on the formation of these nuclei tells us that neutrinos and antineutrinos played a fundamental role in the creation of, in particular, helium nuclei. Helium in Distant Galaxies May Help Explain Why the Universe Exists 2023-07-28T04:00:00Z A quasar is an active galactic nucleus that is believed to be energized by a supermassive black hole. Early strings of cosmic web identified by James Webb Space Telescope 2023-07-04T04:00:00Z In a poetic parallel to charcoal’s birth in fire, most of the carbon in the universe is synthesized in the cosmic furnace of stars through the fusion of helium nuclei. Some of Earth’s Most Famous Art Started with Stardust 2023-07-04T04:00:00Z Just above the optic nerve in the brain is a master clock called the suprachiasmatic nucleus, said Dr. Ravi Allada, a neurobiologist who specializes in sleep and circadian rhythms at Northwestern University. Why do I wake up right before my alarm? 2023-07-03T04:00:00Z This is because protons and neutrons fill up ‘shells’ in the nucleus. Rare Superheavy Oxygen Isotope Is Detected at Last 2023-08-31T04:00:00Z Because the nuclei formed during Big Bang Nucleosynthesis can still be observed today, scientists can infer how many neutrinos and antineutrinos were present during the early universe. Helium in Distant Galaxies May Help Explain Why the Universe Exists 2023-07-28T04:00:00Z They found that weak responses in the nucleus accumbens, the region that regulates how our brain processes motivation and reward, accurately predicted 90 percent of songs that sold fewer than 20,000 copies. Can Your Body’s Response to Music Predict Hit Songs? A New AI Study Claims It Can 2023-06-30T04:00:00Z Producing elements heavier than iron, like cadmium, requires environments rich in neutrons that are captured by lighter “seed” nuclei. Some of Earth’s Most Famous Art Started with Stardust 2023-07-04T04:00:00Z They may come from supernovae remnants, active galactic nuclei or something else entirely—or, perhaps most probably, a mix of all these sources. In a First, Scientists See Neutrinos Emitted by the Milky Way 2023-06-29T04:00:00Z If a nucleus has a magic number of both neutrons and protons, it becomes ‘doubly magic’ — and therefore even more stable. Rare Superheavy Oxygen Isotope Is Detected at Last 2023-08-31T04:00:00Z The 5160 detectors watch for a flash of light—an optical shock wave—radiated by charged particles generated when a neutrino collides with an atomic nucleus. Infrastructure woes could slow South Pole telescope plans 2023-06-21T04:00:00Z McCarthy was considered part of the D-backs’ young nucleus before the season, but got sent to Triple-A after a rough April. McCarthy hits the go-ahead homer, D-backs use 3 long balls in the 8th to beat the Guardians 6-3 2023-06-18T04:00:00Z Mr. Robertson was a 1988 Republican presidential candidate whose base of 3 million evangelical supporters formed the nucleus of the Christian Coalition, one of several organizations he founded to impact the culture. Higher Ground: ‘The Chosen’ thinks globally, Kirk Cameron talks new book 2023-06-12T04:00:00Z Moreover, they found that neurons in a brain region called the medial subthalamic nucleus gave their animals a lower threshold for waking up during REM cycles and were more likely to be defensive once awakened. Pigeons seem to dream of flying: A new study unlocks tantalizing secrets about the minds of birds 2023-06-11T04:00:00Z The nucleus of this isotope has one more proton than does 28O but the same number of neutrons. Rare Superheavy Oxygen Isotope Is Detected at Last 2023-08-31T04:00:00Z He added: “It is satisfying when one finds order in the middle of a chaotic field of the nucleus of our galaxy.” Our Local Black Hole Serves Up an ‘Awe Moment’ 2023-06-08T04:00:00Z When such light atomic nuclei combine, they release an immense amount of energy. What Is the Future of Fusion Energy? 2023-06-05T04:00:00Z That cultural nucleus, like the rest of the world, has had its share of disruptions the past few years. Seattle Center reemerges as the city’s premier summer concert destination 2023-05-25T04:00:00Z The AAV does not integrate the replacement gene into a cell’s genome, instead delivering it into the nucleus as a loop of DNA. Muscular dystrophy gene therapy nears approval, but safety concerns linger 2023-05-23T04:00:00Z This means that in some nuclei, if they are strongly bound, 16 could be a magic number, too. Rare Superheavy Oxygen Isotope Is Detected at Last 2023-08-31T04:00:00Z This can tell us how matter behaves at densities beyond that of an atomic nucleus—that is, at densities in excess of 100 million metric tons per tablespoon of material. Six Gravitational-Wave Breakthroughs Scientists Can’t Wait to See 2023-05-22T04:00:00Z But because these nuclei have positive electrical charges, they repel one another, and it takes tremendous pressures and temperatures to overcome that electrostatic barrier and get them to merge. What Is the Future of Fusion Energy? 2023-06-05T04:00:00Z “It feels like the cultural nucleus of Seattle.” Seattle Center reemerges as the city’s premier summer concert destination 2023-05-25T04:00:00Z The Narodniks believed that the serfs would form the nucleus of a revolutionary class that would rise up and dismantle Tsarist autocracy if properly educated. Western Civilization: A Concise History 2020-01-01T00:00:00Z For now, the confounding qualities of 28O raise a whole host of questions about the forces that hold nuclei together. Rare Superheavy Oxygen Isotope Is Detected at Last 2023-08-31T04:00:00Z Each diplomonad cell has two identical nuclei and uses several flagella for locomotion. Fundamentals of Biology 2015-01-01T00:00:00Z In particular, deuterium-tritium fusion makes an intense flux of high-energy neutrons, which collide with the nuclei of atoms in the metal walls and cladding, causing tiny spots of melting. What Is the Future of Fusion Energy? 2023-06-05T04:00:00Z Prokaryotes are single-celled organisms that lack organelles surrounded by a membrane and do not have nuclei surrounded by nuclear membranes; in contrast, the cells of eukaryotes do have membrane-bound organelles and nuclei. Concepts of Biology 2013-04-25T00:00:00Z The numerous Germanic tribes that had dismantled the western Roman Empire formed the nucleus of the early political units of western Christendom. Western Civilization: A Concise History 2020-01-01T00:00:00Z “We don’t know at the moment how many protons and neutrons you can put together in a nucleus” and have them stay bound together, he adds. Rare Superheavy Oxygen Isotope Is Detected at Last 2023-08-31T04:00:00Z The diploid nucleus gives rise to haploid nuclei by meiosis. Fundamentals of Biology 2015-01-01T00:00:00Z Fusion occurs when the nuclei of two light atoms such as hydrogen, heated to extreme temperatures, fuse into one heavier nucleus releasing vast amounts of energy. First nuclear fusion plants to need $7 bln supply chain -survey 2023-05-17T04:00:00Z In a polar covalent bond, the electrons shared by the atoms spend more time closer to one nucleus than to the other nucleus. Concepts of Biology 2013-04-25T00:00:00Z Eventually, they settled along their trade routes, often invited to establish order by the native Slavs in cities like Kiev, with the Vikings ultimately forming the earliest nucleus of Russia as a political entity. Western Civilization: A Concise History 2020-01-01T00:00:00Z Yet mass differences in atomic nuclei of elements such as aluminum and platinum can be explained only if certain quantum fluctuations contribute to their weight. How Much Does ‘Nothing’ Weigh? 2023-04-29T04:00:00Z Illustration A shows irregularly shaped cells with a central nucleus. Fundamentals of Biology 2015-01-01T00:00:00Z Lambda particles have been studied before, but in the new paper, the researchers relied on a special process called semi-inclusive deep inelastic scattering to create them inside a nucleus. Physicists See ‘Strange Matter’ Form inside Atomic Nuclei 2023-04-27T04:00:00Z This is because the shared electron is pulled more strongly toward the other element and away from the hydrogen nucleus. Concepts of Biology 2013-04-25T00:00:00Z The annual spring blowout is the brainchild of Valerie and Veronica Topacio, the sibling nucleus of local dream pop force La Fonda, who released a shimmering new album, “We Are Infinite,” this month. Best Seattle concerts and club shows to go to this spring 2023-04-19T04:00:00Z Instead, the female and male ant both contribute DNA-laden nuclei, which begin replicating separately over and over again. Scientists discover bizarre type of sex in this ‘crazy’ ant 2023-04-06T04:00:00Z The nuclei of columnar epithelial cells in the digestive tract appear to be lined up at the base of the cells, as illustrated in Figure 3. Fundamentals of Biology 2015-01-01T00:00:00Z This involves shooting an electron beam at a nucleus, which transfers energy to the quarks within the protons and neutrons inside, stimulating lambda production. Physicists See ‘Strange Matter’ Form inside Atomic Nuclei 2023-04-27T04:00:00Z Some of these weak attractions are caused by temporary partial charges formed when electrons move around a nucleus. Concepts of Biology 2013-04-25T00:00:00Z Instead of the brainstem, where Jim was aiming, his electrode ended up roughly in the septal area of the brain, likely in something called the nucleus accumbens. From Orgasms to Overdoses: How Marie Nyswander Went from Treating ‘Sexual Frigidity’ to Heroin Addiction 2023-04-06T04:00:00Z Her team will take the tissue and break it apart into individual nuclei, essentially pulling the cells apart to be able to read the RNA molecules and learn about the cell’s genes. The cross-town journey of a Mukilteo man's brain tissue 2023-03-27T04:00:00Z The nuclei of the tall columnar cells are located near the top, and the nuclei of the shorter columnar cells are located near the bottom, giving the appearance of two layers of cells. Fundamentals of Biology 2015-01-01T00:00:00Z The resulting energetic kick can send quarks pinballing through the nucleus, where they combine with other quarks to create lambdas and other “composite” particles. Physicists See ‘Strange Matter’ Form inside Atomic Nuclei 2023-04-27T04:00:00Z Each species of eukaryote has a characteristic number of chromosomes in the nuclei of its cells. Concepts of Biology 2013-04-25T00:00:00Z After spending much of the first 30 minutes on its back foot, Washington began to apply pressure, with Rodman at the nucleus. Spirit begins new season with new energy — and a 1-0 victory 2023-03-26T04:00:00Z Seligman said a coma, which is a cloud of gas surrounding the nucleus of a comet, consists of micron-sized dust particles that reflect sunlight and which travel with the gas. A new paper says 'Oumuamua was a comet, not an alien spacecraft. Not everyone agrees 2023-03-26T04:00:00Z Pseudostratisfied columnar epithilia occur in a single layer, but the arrangement of nuclei makes it appear that more than one layer is present. Fundamentals of Biology 2015-01-01T00:00:00Z This is the force that binds quarks together to make larger particles such as protons and neutrons and that holds those protons and neutrons within an atom’s nucleus. Physicists See ‘Strange Matter’ Form inside Atomic Nuclei 2023-04-27T04:00:00Z Mitosis is nuclear division during which duplicated chromosomes are segregated and distributed into daughter nuclei. Concepts of Biology 2013-04-25T00:00:00Z Researchers have also found that the suprachiasmatic nucleus, another brain region that regulates the body’s circadian rhythms, deteriorates in mice with age. Aging and rest: How the years affect our sleep cycle 2023-03-24T04:00:00Z The Detroit Pistons entered the season with a young nucleus led by Cade Cunningham, the No. 1 pick in the 2021 draft. Analysis: Injuries slowed progress in Detroit, Charlotte 2023-03-21T04:00:00Z Illustration shows irregularly shaped cells with tiny nuclei clustered next to the cell’s outer membrane. Fundamentals of Biology 2015-01-01T00:00:00Z By studying the energy and momentum of the particles produced by the decaying lambdas, El Fassi and her colleagues could piece together exactly what happened to the freed quarks running rampant through the nucleus. Physicists See ‘Strange Matter’ Form inside Atomic Nuclei 2023-04-27T04:00:00Z DNA and the associated proteins, as well as accumulating enough energy reserves to complete the task of replicating each chromosome in the nucleus. Concepts of Biology 2013-04-25T00:00:00Z To run the experiment she had in mind, Wu needed to reduce the temperature of radioactive cobalt 60 nuclei until the particles almost stopped moving. The Little-Known Origin Story behind the 2022 Nobel Prize in Physics 2023-03-16T04:00:00Z We know these tiny, positively charged particles reside within the nucleus of every atom and constitute most of the ordinary matter in the universe. How Big Is a Proton? Neutrinos Weigh In 2023-03-16T04:00:00Z It contains the nucleus of the cell, and therefore is where most protein synthesis occurs. Fundamentals of Biology 2015-01-01T00:00:00Z Likely composed of the mundane up and down quarks that are so plentiful in the nucleus, this diquark would then go in search of a third quark, ultimately bonding with a strange quark. Physicists See ‘Strange Matter’ Form inside Atomic Nuclei 2023-04-27T04:00:00Z During prophase, the “first phase,” several events must occur to provide access to the chromosomes in the nucleus. Concepts of Biology 2013-04-25T00:00:00Z “For these guys to come together and be the nucleus, the matriarch of our program, and for them to go out like this ...” Hayfield Coach Carlos Poindexter said of Jones, King and Holloway. Hayfield boys complete Class 6 title defense with victory over Patriot 2023-03-10T05:00:00Z The nucleus of all lab leak conjectures — they are not a single hypothesis but a wide range of sometimes mutually exclusive speculations — was famously captured by the comedian Jon Stewart. Opinion: I called for more research on the COVID 'lab leak theory.' Here's what I found out 2023-03-08T05:00:00Z The nucleus ranges from 3 to 18 micrometers in diameter. Fundamentals of Biology 2015-01-01T00:00:00Z Because the particles’ final energies and momenta contain information about what they encountered on their journey through the nucleus, they can also help uncover what’s happening in the hidden hearts of atoms. Physicists See ‘Strange Matter’ Form inside Atomic Nuclei 2023-04-27T04:00:00Z At this point, the nuclei in the newly produced cells are both haploid and have only one copy of the single set of chromosomes. Concepts of Biology 2013-04-25T00:00:00Z TAE is following a different recipe: fusing hydrogen nuclei—protons—with easily mined boron. Reactor experiment demonstrates alternative fusion scheme 2023-02-28T05:00:00Z Gilbert and other researchers are working on other delivery methods, such as messenger RNA — the technology used in many vaccines for the coronavirus — to deliver a genetic payload to the nucleus of cells. New gene therapy approaches show ‘breakthroughs’ against rare condition 2023-02-24T05:00:00Z The soma is usually about 10–25 micrometers in diameter and often is not much larger than the cell nucleus it contains. Fundamentals of Biology 2015-01-01T00:00:00Z Tom Bunnell’s pictures seem fundamentally organic, whether they suggest cells and nuclei or a field of multicolored eggs in black nests. Review | In the galleries: Immersive meditations on legacies of the enslaved 2023-02-24T05:00:00Z The nuclei resulting from a mitotic division are genetically identical to the original. Concepts of Biology 2013-04-25T00:00:00Z An MRI scanner employs a magnetic field to twirl atomic nuclei in living tissue—specifically the protons at the heart of hydrogen atoms—so that they emit radio waves. MRI for all: Cheap portable scanners aim to revolutionize medical imaging 2023-02-22T05:00:00Z Physicists expected that quarks and gluons, when freed from nuclei, would take the form of a uniformly expanding gaseous substance. Tiny Bubbles of Primordial Soup Recreate Early Universe 2023-02-22T05:00:00Z Smooth muscle cells contain only one nucleus and no striations. Fundamentals of Biology 2015-01-01T00:00:00Z Its nucleus is a magnificent burlesque of heterosexual male desire. Commentary: How the aesthetics of drag drive the bigots mad 2023-02-22T05:00:00Z On the other hand, meiosis is two nuclear divisions that result in four nuclei, usually partitioned into four new cells. Concepts of Biology 2013-04-25T00:00:00Z Some among the others: The Disney Brothers Cartoon Studio in East Hollywood set up shop, the nucleus of an aesthetic, a technique, an insanely rich international empire of imagination. The Hollywood sign debuted 100 years ago in 1923, the year of L.A.'s 'Big Bang' 2023-02-16T05:00:00Z It was a reasonable assumption: quarks and gluons aren't released from nuclei until they reach temperatures of trillions of degrees. Tiny Bubbles of Primordial Soup Recreate Early Universe 2023-02-22T05:00:00Z Like smooth muscle, cardiac muscle cells contain only one nucleus. Fundamentals of Biology 2015-01-01T00:00:00Z Intriguingly, stimulating these sensory neurons and engaging in sexual behavior both released dopamine in the nucleus accumbens, a key brain area associated with reward. The power of social touch: How a loving caress really can ease anxiety 2023-02-09T05:00:00Z Homologous chromosomes move to opposite poles during meiosis I so the number of sets of chromosomes in each nucleus- to-be is reduced from two to one. Concepts of Biology 2013-04-25T00:00:00Z Likewise, when a human subject holds her partner’s hand, it activates her nucleus accumbens—one of the brain regions that in prairie voles has receptors for oxytocin and vasopressin. Monogamous Prairie Voles Reveal the Neurobiology of Love 2023-02-13T05:00:00Z Zoom in past the single electron orbiting at the outskirts, and you'll find the nucleus—in this case a lone proton. Tiny Bubbles of Primordial Soup Recreate Early Universe 2023-02-22T05:00:00Z They differ in the shape of the nucleus, and in the presence or absence of granules in the cytoplasm. Fundamentals of Biology 2015-01-01T00:00:00Z It traps neutral atoms using tightly focused laser beams, called optical tweezers, and encodes qubits in the electronic states of the atoms or in the spins of atoms’ nuclei. Underdog Technologies Gain Ground in Quantum-Computing Race 2023-02-13T05:00:00Z In meiosis, there are two rounds of nuclear division resulting in four nuclei and usually four haploid daughter cells, each with half the number of chromosomes as the parent cell. Concepts of Biology 2013-04-25T00:00:00Z They found that reward neurons in the nucleus accumbens light up just before an animal approaches a mate. Monogamous Prairie Voles Reveal the Neurobiology of Love 2023-02-13T05:00:00Z With the exception of Phoenix and Dallas, whose trades reshaped the nucleus of each, the fate of the West’s contenders hinge on their long-established cores. Suns lead way as teams retool for stretch run in the wild, wild West 2023-02-10T05:00:00Z Genetic recombination is known to take place between the different nuclei. Fundamentals of Biology 2015-01-01T00:00:00Z To make the atoms interact, physicists point a separate laser at one of them to tickle it into an excited state, in which an outer electron orbits much farther away from the nucleus than normal. Underdog Technologies Gain Ground in Quantum-Computing Race 2023-02-13T05:00:00Z During meiosis, variation in the daughter nuclei is introduced because of crossover in prophase I and random alignment at metaphase I. The cells that are produced by meiosis are genetically unique. Concepts of Biology 2013-04-25T00:00:00Z Gilbert and other researchers are working on other delivery methods, such as messenger RNA – the technology used in many COVID-19 vaccines – to deliver a genetic payload to the nucleus of cells. Promising gene therapy delivers treatment directly to brain 2023-01-23T05:00:00Z Conversely, Earth’s ferrous nucleus may have a metamorphosing surface, twisting any seismic waves that pierce it. Earth’s Inner Core Paused, Then Reversed Its Spin. This Is Fine. 2023-01-23T05:00:00Z The mature embryo sac contains one egg cell, two synergids or “helper” cells, three antipodal cells, and two polar nuclei in a central cell. Fundamentals of Biology 2015-01-01T00:00:00Z The frozen core of a comet, known as a nucleus, is usually less than 10 miles wide. How to see green comet passing Earth for first time in 50,000 years 2023-01-21T05:00:00Z Meiotic divisions are two nuclear divisions that produce four daughter nuclei that are genetically different and have one chromosome set rather than the two sets the parent cell had. Concepts of Biology 2013-04-25T00:00:00Z Along with halfback Eugene “Mercury” Morris, they would form the nucleus of the Dolphins’ fearsome ’72 rushing attack. 50 years later, ‘no one else can top’ the 1972 Dolphins 2023-01-13T05:00:00Z Though the nucleus of the team seems largely set, holes remain in the organization. From Leeds to Leesburg: Mateusz Klich arrives to bolster D.C. United attack 2023-01-13T05:00:00Z The DNA in the nucleus is wrapped around histone proteins, as is observed in other eukaryotic cells. Fundamentals of Biology 2015-01-01T00:00:00Z The combination gas/dust patch swallows the comet’s nucleus in a cloud known as a “coma,” then streams away in the form of a gently arcing tail. How to see green comet passing Earth for first time in 50,000 years 2023-01-21T05:00:00Z Figure 8.11 The random segregation into daughter nuclei that happens during the first division in meiosis can lead to a variety of possible genetic arrangements. Concepts of Biology 2013-04-25T00:00:00Z “They were looking for land and incentives to build something and I think that was the nucleus” of the evolving concern about farmland, he said. Youngkin says he blocked Ford battery plant on China concerns 2023-01-13T05:00:00Z It was to form the nucleus of a new downtown district drawing entrepreneurs in tech and tourism as the country diversified its economy away from oil. Saudi Arabia is giving itself an extreme makeover with 'giga-projects.' Will it work? 2023-01-12T05:00:00Z Each cell has its own nucleus, and connects to other cells end-to-end in a long strand. Fundamentals of Biology 2015-01-01T00:00:00Z In a reactor’s core, uranium and plutonium nuclei split in a chain reaction, and the antineutrinos come from the radioactive “beta decay” of the lighter nuclei left behind. Nuclear reactor mystery solved, with no need for new particles 2023-01-11T05:00:00Z Figure 2.2 Atoms are made up of protons and neutrons located within the nucleus, and electrons surrounding the nucleus. Concepts of Biology 2013-04-25T00:00:00Z The discovery could help physicists understand what goes on inside an atomic nucleus. Scientists See Quantum Interference between Different Kinds of Particles for First Time 2023-01-11T05:00:00Z Then they noticed the space rock's coma, meaning the cloud of gas and dust that surround the nucleus of the comet. After 50,000 years, a comet is returning to the inner solar system. Here's how to see it 2023-01-10T05:00:00Z However, in coenocytic hyphae, there is no separation between the cells or nuclei. Fundamentals of Biology 2015-01-01T00:00:00Z In such decay, a neutron in a nucleus changes into a proton while emitting an electron and an electron antineutrino. Nuclear reactor mystery solved, with no need for new particles 2023-01-11T05:00:00Z Electrons exist at energy levels that form shells around the nucleus. Concepts of Biology 2013-04-25T00:00:00Z As the gold nuclei zing at near light speed through the collider, they create an electromagnetic field that generates photons. Scientists See Quantum Interference between Different Kinds of Particles for First Time 2023-01-11T05:00:00Z Their nucleus is young, and Lawrence may evolve into an elite quarterback. Analysis | What to know from NFL Week 18: Aaron Rodgers is going home — maybe for good 2023-01-09T05:00:00Z Zygomycetes have a thallus of coenocytic hyphae in which the nuclei are haploid when the organism is in the vegetative stage. Fundamentals of Biology 2015-01-01T00:00:00Z To predict the total flux of antineutrinos, physicists had to account for the amounts and decays of myriad different nuclei. Nuclear reactor mystery solved, with no need for new particles 2023-01-11T05:00:00Z The closest shell to the nucleus is always filled first, before any other shell can be filled. Concepts of Biology 2013-04-25T00:00:00Z When two gold nuclei come close to one another but don’t collide, the photons may ping off the neighboring nuclei. Scientists See Quantum Interference between Different Kinds of Particles for First Time 2023-01-11T05:00:00Z This force is so intense that it fuses the electrons and protons in the atomic nuclei together, forming neutrons, creating a material that is as dense as an atomic nucleus. A weird, dead magnetized star has a solid surface — and a ring 2023-01-09T05:00:00Z Each nucleus undergoes mitosis, resulting in eight ascospores, which are also arranged in a row at the tip of the hyphae. Fundamentals of Biology 2015-01-01T00:00:00Z This process continues today and accounts for all the elements from helium on the light end, with two protons per atom, all the way up to iron, which has 26 protons in its atomic nucleus. How Star Collisions Forge the Universe’s Heaviest Elements 2023-01-09T05:00:00Z Therefore, they do not have a nucleus but instead have a single chromosome—a piece of circular DNA located in an area of the cell called the nucleoid. Concepts of Biology 2013-04-25T00:00:00Z In particular, the photons can act like tiny lasers, scanning the nuclei of the gold ions they collide with. Scientists See Quantum Interference between Different Kinds of Particles for First Time 2023-01-11T05:00:00Z A clue emerged when Li’s postdoc, Ni A. An, discovered that many lncRNAs have a hard time exiting the nucleus. Human gene linked to bigger brains was born from seemingly useless DNA 2023-01-05T05:00:00Z Special ascogenous hyphae arise, in which pairs of nuclei migrate: one from the “male” strain and one from the “female” strain. Fundamentals of Biology 2015-01-01T00:00:00Z Adding neutrons, however, does not produce a new element, because elements are defined by the number of protons in their nucleus. How Star Collisions Forge the Universe’s Heaviest Elements 2023-01-09T05:00:00Z The other sperm fuses with the diploid nucleus in the center of the embryo sac, forming a triploid cell that will develop into the endosperm: a tissue that serves as a food reserve. Concepts of Biology 2013-04-25T00:00:00Z By measuring the momentum of the pions, researchers can get a picture of the density of the thing the photon bounced off of—in this case, the subatomic particles making up the ion’s nucleus. Scientists See Quantum Interference between Different Kinds of Particles for First Time 2023-01-11T05:00:00Z The researchers used a sophisticated computer program to identify differences between protein-coding genes whose mRNA got out of the nucleus and the DNA sequences that produced RNAs that did not. Human gene linked to bigger brains was born from seemingly useless DNA 2023-01-05T05:00:00Z In each ascus, two or more haploid ascospores fuse their nuclei in karyogamy. Fundamentals of Biology 2015-01-01T00:00:00Z What we do get is a heavier isotope of the same element—a nucleus containing the same number of protons but a different number of neutrons. How Star Collisions Forge the Universe’s Heaviest Elements 2023-01-09T05:00:00Z Notice that skeletal muscle cells are long and cylindrical, they have multiple nuclei, and the small, dark nuclei are pushed to the periphery of the cell. Concepts of Biology 2013-04-25T00:00:00Z By precisely calculating the polarization, the researchers can essentially subtract the “blur” from the measurements of the nucleus, yielding a much more accurate picture. Scientists See Quantum Interference between Different Kinds of Particles for First Time 2023-01-11T05:00:00Z Li’s team scoured the human and chimpanzee genomes for de novo protein-coding genes that had lncRNA counterparts in rhesus monkeys, as well as the crucial U1 element mutations needed to exit the nucleus. Human gene linked to bigger brains was born from seemingly useless DNA 2023-01-05T05:00:00Z At fertilization, one of the sperm cells will finally unite its haploid nucleus with the haploid nucleus of a haploid egg cell. Fundamentals of Biology 2015-01-01T00:00:00Z In this way, the number of protons in an atom’s nucleus increases, and a new element is born. How Star Collisions Forge the Universe’s Heaviest Elements 2023-01-09T05:00:00Z Smooth muscle cells are short, tapered at each end, and have only one nucleus each. Concepts of Biology 2013-04-25T00:00:00Z “We’re actually able to see the difference between where the protons are and where the neutrons are inside the nucleus,” Brandenburg says. Scientists See Quantum Interference between Different Kinds of Particles for First Time 2023-01-11T05:00:00Z The Cardinals appear to have the nucleus of a good defense heading into next season. Kingsbury’s future with Cardinals the focus of final 2 weeks 2022-12-26T05:00:00Z According to this hypothesis, a primary endosymbiotic event resulted in an ancestral eukaryotic cell acquiring a nucleus, and a secondary endosymbiotic event resulted in the acquisition of a mitochondrion. Fundamentals of Biology 2015-01-01T00:00:00Z In this scenario, neutrons are plentiful and slam into nuclei one after another before they have time to decay. How Star Collisions Forge the Universe’s Heaviest Elements 2023-01-09T05:00:00Z The cells of skeletal muscle are long and tapered and have multiple nuclei on the periphery of each cell. Concepts of Biology 2013-04-25T00:00:00Z That’s 10 to 100 times more precise than previous measurements of high-energy atomic nuclei. Scientists See Quantum Interference between Different Kinds of Particles for First Time 2023-01-11T05:00:00Z He meant so much to Steelers fans as the Hall of Fame running back who helped form the nucleus of the team’s dynasty of the ’70s, but he was much more. Remembering Franco: Reaction to the death of Franco Harris 2022-12-21T05:00:00Z According to this hypothesis, the mitochondrion was acquired before the nucleus, but both were acquired by endosymbiosis. Fundamentals of Biology 2015-01-01T00:00:00Z A nucleus can rapidly balloon into a highly unstable isotope, going all the way up to what’s called the neutron drip line—the absolute limit of the neutron-to-proton ratio allowed by nature inside a nucleus. How Star Collisions Forge the Universe’s Heaviest Elements 2023-01-09T05:00:00Z The cells of cardiac muscle tissue are connected to each other through intercalated disks and usually have just one nucleus per cell. Concepts of Biology 2013-04-25T00:00:00Z Beyond the size of the nucleus, there are other details this technique could uncover. Scientists See Quantum Interference between Different Kinds of Particles for First Time 2023-01-11T05:00:00Z Still, archaea and bacteria bear some key similarities—typically neither has core eukaryotic features such as mitochondria, cells’ internal powerhouses, or DNA encased inside a nucleus, for example. Strange, tentacled microbe may resemble ancestor of complex life 2022-12-21T05:00:00Z According to this hypothesis, prokaryotes evolved from eukaryotic cells that lost their nuclei and organelles. Fundamentals of Biology 2015-01-01T00:00:00Z The extremely heavy nucleus will then convert many of its neutrons to protons via beta decays or even break into smaller nuclei, ultimately producing a range of stable heavy elements. How Star Collisions Forge the Universe’s Heaviest Elements 2023-01-09T05:00:00Z Figure 16.19 Neurons contain organelles common to other cells, such as a nucleus and mitochondria. Concepts of Biology 2013-04-25T00:00:00Z “We’ve got a great nucleus of players coming back. My expectations for what we can achieve next year are sky-high.” Newberry expects quick turnaround after taking over at Navy 2022-12-20T05:00:00Z When a neutrino travels through the ice, it has some small chance of slamming into the nucleus of one of the oxygen or hydrogen atoms in that ice. Neutrinos from a Nearby Galaxy Reveal Black Hole Secrets 2022-12-20T05:00:00Z The tube nucleus grows into the long style, to the ovary. Fundamentals of Biology 2015-01-01T00:00:00Z After a nucleus absorbs extra neutrons, for instance, but before it becomes stable, exotic nuclei arise that scientists don’t understand. How Star Collisions Forge the Universe’s Heaviest Elements 2023-01-09T05:00:00Z Bacteria have a single, circular DNA chromosome and no nucleus. Concepts of Biology 2013-04-25T00:00:00Z They exist and reproduce by infecting living cells, infiltrating their nuclei and forcing the cells to manufacture copies of the virus. You have so many viruses in your body right now, we couldn't fit the number in this title 2022-12-19T05:00:00Z Years of gutting their drafts in pursuit of blockbuster trades have left them devoid of a young nucleus ready to step up as elders move on — hence, the left tackle void following Andrew Whitworth’s retirement. Analysis | As the Rams struggle, Sean McVay’s future remains murky 2022-12-17T05:00:00Z The other sperm fuses with the 2n polar nuclei, forming a triploid cell that will develop into the endosperm, which is tissue that serves as a food reserve. Fundamentals of Biology 2015-01-01T00:00:00Z These in-between nuclei have properties that push the bounds of physics, and measuring them in a laboratory is difficult and sometimes even impossible. How Star Collisions Forge the Universe’s Heaviest Elements 2023-01-09T05:00:00Z Meiosis is the division of the contents of the nucleus that divides the chromosomes among gametes. Concepts of Biology 2013-04-25T00:00:00Z The hydrogen atoms fuse, releasing a tremendous amount of energy while producing a helium nucleus and a neutron. See how lasers led to a nuclear fusion milestone For a fraction of a second, the temperature in the hydrogen exceeded that in the core of our Sun, forcing the nuclei of the hydrogen atoms to merge with each other. Opinion | Betting on Fusion Energy Shows Our Children We Care About Them 2022-12-16T05:00:00Z For example, they are enclosed by a plasma membrane and have a nucleus and other membrane-bound organelles. Fundamentals of Biology 2015-01-01T00:00:00Z They might contain mostly neutrons and a small fraction of protons inside a crust of heavier nuclei at their surfaces. How Star Collisions Forge the Universe’s Heaviest Elements 2023-01-09T05:00:00Z Mitosis is a single nuclear division that results in two nuclei, usually partitioned into two new cells. Concepts of Biology 2013-04-25T00:00:00Z Mayor Harrell proposed, and the council approved, an alternative response pilot in the 2023-2024 biennial budget that could form the nucleus of this future department. Albuquerque built non-police 911 response fast — why can’t Seattle? 2022-12-15T05:00:00Z And if you look at it at its nucleus, because of the two brothers, it’s just a family drama.” 50 Cent helps twin brothers who brought down El Chapo tell their story 2022-12-14T05:00:00Z In some species, individual single-celled organisms come together and fuse to form a giant cell with thousands of nuclei. Fundamentals of Biology 2015-01-01T00:00:00Z And because r-process nuclei would be unstable and undergo radioactive decay, they should be able to heat up the material surrounding them and power an electromagnetic flare that would carry signatures of the elements produced. How Star Collisions Forge the Universe’s Heaviest Elements 2023-01-09T05:00:00Z In reproductive cloning, a donor nucleus is put into an enucleated egg cell, which is then stimulated to divide and develop into an organism. Concepts of Biology 2013-04-25T00:00:00Z In the sun’s core, the tremendous pressure drives hydrogen nuclei together. U.S. announces milestone on fusion energy, sparking hopes for clean power 2022-12-13T05:00:00Z The reaction happens when two light nuclei merge to form a single heavier nucleus. EXPLAINER: Why fusion could be a clean-energy breakthrough 2022-12-12T05:00:00Z Being eukaryotes, a typical fungal cell contains a true nucleus and many membrane-bound organelles. Fundamentals of Biology 2015-01-01T00:00:00Z New projects such as the Facility for Rare Isotope Beams, which opened in May 2022 at Michigan State University, will measure the nuclear properties of rare nuclei. How Star Collisions Forge the Universe’s Heaviest Elements 2023-01-09T05:00:00Z In fact, many protist cells are multinucleated; in some species, the nuclei are different sizes and have distinct roles in protist cell function. Concepts of Biology 2013-04-25T00:00:00Z Experimental fusion reactors heat plasmas — free electrons and atomic nuclei — to temperatures exceeding 100 million degrees Celsius, hotter than the sun’s core. U.S. announces milestone on fusion energy, sparking hopes for clean power 2022-12-13T05:00:00Z Because the total mass of that single nucleus is less than the mass of the two original nuclei, the leftover mass is energy that is released in the process, according to the Department of Energy. EXPLAINER: Why fusion could be a clean-energy breakthrough 2022-12-12T05:00:00Z One is called the generative nucleus, and the other is called the pollen tube nucleus. Fundamentals of Biology 2015-01-01T00:00:00Z Magnetic fields trap the plasma within the doughnut shape, and the nuclei fuse together, releasing energy in the form of neutrons flying outward. Major Fusion Energy Breakthrough to Be Announced by Scientists 2022-12-12T05:00:00Z Figure 3.10 The outermost boundary of the nucleus is the nuclear envelope. Concepts of Biology 2013-04-25T00:00:00Z Mixoplankton are protists, which are basically any eukaryote—an organism with one or more cells that have a nucleus and organelles—that isn’t an animal, plant or fungus. 6 Weird and Wild Animal Behaviors Revealed in 2022 2022-12-07T05:00:00Z |
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