Nuclei that are fissionable by neutrons typically carry at least a very small chance of spontaneous fission occurring.

Nuclei with certain numbers of neutrons and protons ( the magic numbers 2, 8, 20, 28, 50, 82, 126, ...) are particularly stable, because their shells are filled.

* Confirmation of life imprisonment to the neo-fascists Valerio Fioravanti and Francesca Mambro, members of the Nuclei Armati Rivoluzionari ( NAR )— who have always maintained their innocence — for executing the attack.

Nuclei from these cells were put into egg cell devoid of their original nuclei in the Honolulu cloning technique.

Nuclei which have neutron number and proton ( atomic ) numbers each equal to one of the magic numbers are called " double magic ", and are especially stable against decay.

The spontaneous decay can only be explained by quantum tunneling in a similar way to the first application of the Quantum Mechanics to Nuclei given by G. Gamow for alpha decay.

Greek authorities speculate that Revolutionary Nuclei may have been formed by members of the Revolutionary Popular Struggle (; Epanastatikos Laikos Agonas ) after that group dissolved in 1995.

Nuclei of masses greater than 56 cannot be formed by thermonuclear reactions ( i. e. by nuclear fusion ), but can be formed by neutron capture.

Nuclei which have a neutron halo include < sup > 11 </ sup > Be and < sup > 19 </ sup > C.

* Nuclei that predominantly absorb neutrons and then emit Beta particle radiation lead to these isotopes, e. g., Th-232 absorbs a neutron and becomes Th-233 *, which emits a Beta particle and becomes Pa-233, which emits another Beta particle to become U-233.

Nuclei send out impulses to other nuclei, which influence respiratory rate, physical arousal, the release of adrenaline, blood pressure, heart rate, behavioral fear response, and defensive responses, which may include freezing up.

Nuclei which have a proton halo include < sup > 8 </ sup > B and < sup > 26 </ sup > P.

Nuclei are stained blue with DAPI, microtubles are marked green by an antibody and actin filaments are labelled red with phalloidin.

Nuclei may also have extreme shapes ( similar to that of Rugby balls ) or extreme neutron-to-proton ratios.

Nuclei are bound by an attractive nuclear force between nucleons, which overcomes the electrostatic repulsion between protons.

Nuclei which have more than 20 protons cannot be stable unless they have more than an equal number of neutrons.

Nuclei also have distinct energy states that are widely separated and lead to gamma ray spectra.

# Janez Strnad, Fizika, 4. del, Molekule, kristali, jedra, delci ( Physics, 4th part, Molecules, Crystals, Nuclei, Particles ), ( DZS, Ljubljana 1982, pp 283 ).

Image: Brain stem sagittal section. svg | Nuclei of the pons and brainstem

Brigades and NAP Proletariat Nuclei as the tip of the iceberg of the Movement.

Amongst those he has influenced are Miguel Serrano, Savitri Devi, GRECE, the Movimento sociale italiano ( MSI ), Falange Espanola, Gaston Armand Amaudruz's Nouvel Ordre Européen, Guillaume Faye, Pino Rauti's Ordine Nuovo, Alain de Benoist, Michael Moynihan, Giorgio Freda, the Nuclei Armati Rivoluzionari ( Armed Revolutionary Nuclei ) and Forza Nuova.

*" New Outlook on the Possible Existence of Superheavy Elements in Nature ", by Marinov, Gelberg, Kolb, Brandt, and Pape, Physics of Atomic Nuclei, Vol.

Convergent Inputs from Thalamic Motor Nuclei and Frontal Cortical Areas to the Dorsal Striatum in the Primate.

Other duties were operation of the Geophysical Fluid Flow Cell ( GFFC ), Urinary Monitoring System ( UMS ), and the Ionization States of Solar and Galactic Cosmic Ray Heavy Nuclei ( IONS ) experiment.

Nuclei exposed to more Nanos will activate genes responsible for differentiation of posterior regions, such as the abdomen and germ cells.

* To Nuclei of Nerves III, IV, and VI.

It was in the early 1950s when Prof. Victor Hambardzumyan first raised the issue of the Activity of Nuclei of Galaxies ( AGN ).

Image: Gray697. png | Nuclei of origin of cranial motor nerves schematically represented ; lateral view.

* Effective field theory ( Interactions, Symmetry Breaking and Effective Fields-from Quarks to Nuclei.

Image: Gray697. png | Nuclei of origin of cranial motor nerves schematically represented ; lateral view.

Specifically, if one or more of the produced neutrons themselves interact with other fissionable nuclei, and these also undergo fission, then there is a possibility that the macroscopic overall fission reaction will not stop, but continue throughout the reaction material.

Prokaryotic cells undergo a process similar to mitosis called binary fission.

They reproduce by binary fission or sometimes by budding, but do not undergo sexual reproduction.

* When an < sup > 235 </ sup > U atom captures a neutron, it is converted to an excited state of < sup > 236 </ sup > U. About 81 % of the excited < sup > 236 </ sup > U nuclei undergo fission, but the remainder decay to the ground state of < sup > 236 </ sup > U by emitting gamma radiation.

Heavy nuclei such as uranium and thorium may undergo spontaneous fission, but they are much more likely to undergo decay by alpha decay.

Both uses are possible because certain substances called nuclear fuels undergo fission when struck by fission neutrons, and in turn emit neutrons when they break apart.

Most nuclear fuels undergo spontaneous fission only very slowly, decaying instead mainly via an alpha / beta decay chain over periods of millennia to eons.

Several heavy elements, such as uranium, thorium, and plutonium, undergo both spontaneous fission, a form of radioactive decay and induced fission, a form of nuclear reaction.

Elemental isotopes that undergo induced fission when struck by a free neutron are called fissionable ; isotopes that undergo fission when struck by a thermal, slow moving neutron are also called fissile.

All fissionable and fissile isotopes undergo a small amount of spontaneous fission which releases a few free neutrons into any sample of nuclear fuel.

When a large fissile atomic nucleus such as uranium-235 or plutonium-239 absorbs a neutron, it may undergo nuclear fission.

In cold fusion reactions, the produced fused nuclei have a relatively low excitation energy (~ 10 – 20 MeV ), which decreases the probability that these products will undergo fission reactions.

Later, a much more complicated and far more powerful type of fission / fusion bomb ( thermonuclear weapon ) was built, that uses a plutonium-based device to cause a mixture of tritium and deuterium to undergo nuclear fusion.

Additionally, a contained reactor can only allow a small percentage of its fuel to undergo fission at any given time, otherwise it would overheat and meltdown ( or explode in a runaway fission chain reaction ).

Uranium-235 and uranium-238 are both primordial isotopes that undergo spontaneous fission.

The daughter nucleus is very unstable, decaying with a lifetime of 14 milliseconds into, which may experience either spontaneous fission or alpha decay into, which will undergo spontaneous fission.