Iron's very common presence in rocky planets like Earth is due to its abundant production as a result of fusion in high-mass stars, where the production of nickel-56 ( which decays to the most common isotope of iron ) is the last nuclear fusion reaction that is exothermic.

There had been evidence of dineutron emission from neutron-rich isotopes such as beryllium-16 where mononeutron decay would result in a less stable isotope.

Under 1 % of the uranium found in nature is the easily fissionable U-235 isotope and as a result most reactor designs require enriched fuel.

Neutron radiation was discovered as a result of observing a beryllium nucleus reacting with an alpha particle thus transforming into a carbon nucleus and emitting a neutron, Be ( α, n ) C. The combination of an alpha particle emitter and an isotope with a large ( α, n ) nuclear reaction probability is still a common neutron source.

Unlike the Earth and the Moon, Io's main source of internal heat comes from tidal dissipation rather than radioactive isotope decay, the result of Io's orbital resonance with Europa and Ganymede.

In April, 1944 tests on the first plutonium-239 produced with neutrons in a nuclear reactor rather than a cyclotron, revealed an unexpected problem: the reactor-bred plutonium contained five times more plutonium-240 ( a result of reactor neutron bombardment ), an unwanted isotope that spontaneously decayed and produced neutrons that promised to cause a pre-detonation, without sufficiently quick critical mass assembly.

As a result, in 1951, Eldorado established a commercial products division ( CPD ) to manage the isotope business, especially cobalt-60 used in cancer treatment.

While both RHUs and RTGs use the decay heat of a radioactive isotope ( usually Pu-238 ), RHUs are generally much smaller as a result of omitting the thermocouples and heat sinks / radiators required to generate electricity from heat.

Theoretical calculations by Rudolph Marcus and others suggest that the enrichments are the result of a combination of mass-dependent and mass-independent kinetic isotope effects ( KIE ) involving the excited state O < sub > 3 </ sub >* intermediate related to some unusual symmetry properties.

For this reason, high doses of the isotope are sometimes less dangerous than low doses, since they tend to kill thyroid tissues that would otherwise become cancerous as a result of the radiation.

Variations in < sup > 53 </ sup > Cr /< sup > 52 </ sup > Cr and Mn / Cr ratios from several meteorites indicate an initial < sup > 53 </ sup > Mn /< sup > 55 </ sup > Mn ratio that suggests Mn-Cr isotope systematics must result from in-situ decay of < sup > 53 </ sup > Mn in differentiated planetary bodies.

Just as now anyone may hurl insults at a citizen of Mars, or even of Tikopia, and no senatorial investigation will result.

The Space Merchants, like such humanist documents as Joseph Wood Krutch's The Measure Of Man and C. S. Lewis's The Abolition Of Man, considers what may result from the scientific study of human nature.

Their burgeoning popularity may be a result of the closing of the 52nd Street burlesque joints, but curiously enough their atmosphere is almost always familial -- neighborhood saloons with a bit of epidermis.

As with the penultimate Giselle release ( Wolff's abridgment for RCA Victor ) I find the cleaner, less razor-edged monophonic version, for all its lack of big-stage spaciousness, the more aurally tolerable -- but this may be the result of processing defects in my SD copies.

Working in a vacuum of minimal information can result only in show pieces that look good in exhibitions and catalogs and may please the public relations department but have little to do with the essence of interior design.

This result suggests a very high temperature at the solid surface of the planet, although there is the possibility that the observed radiation may be a combination of both thermal and non-thermal components and that the observed spectrum is that of a black body merely by coincidence.

In some instances a different clinical disease picture may result from this route of exposure, making diagnosis difficult.

Extreme caution should be used, however, to avoid the conflicting usage of an index word or electronic switch which may result from the assignment of more than one name or function to the same address.

When rapid quenching follows melting, impact glasses may result.

If the force required to remove the coatings is plotted against film thickness, a graph as illustrated schematically in Fig. 5 may characteristically result.

Tooth deformity may be the result of excessive thumb- or finger-sucking, tongue-thrusting, or lip-sucking -- but it's important to remember that there's a difference between normal and excessive sucking habits.

Bad alignment may result in early loss of teeth through a breakdown of the bony structure that supports their roots.

Erikson has noted that, unless this trust developed early, the time ambivalence experienced, in varying degree and temporarily, by all adolescents ( as a result of their remembering the more immediate gratification of wants during childhood, while not yet having fully accepted the long-range planning required by adulthood ) may develop into a more permanent sense of time diffusion.

Erikson has noted that, as this indecision mounts, it may result in a `` paralysis of workmanship ''.

The Kennedy hope is that, at the conference or through bilateral talks, the low-wage textile-producing countries in Asia and Europe will see that `` dumping '' practices cause friction all around and may result in import quotas.

Presumably, if the reverse is the case and the good effect is more certain than the evil result that may be forthcoming, not only must the good and the evil be prudentially weighed and found proportionate, but also calculation of the probabilities and of the degree of certainty or uncertainty in the good or evil effect must be taken into account.

and by deriving legitimate decision backward from whatever may conceivably or possibly or probably result, whether by anyone's doing or by accident, it finds itself driven to inaction, to non-political action in politics and non-military action in military affairs, and to the not very surprising discovery that there are now no distinctions on which the defense of justice can possibly be based.

The failure to formally object at the time, to what one views as improper action in the lower court, may result in the affirmance of the lower court's judgment on the grounds that one did not " preserve the issue for appeal " by objecting.

Studies show that AAC use does not impede the development of speech, and may even result in a modest increase in speech production.

Some jurisdictions hold this as an absolute right, and in its absence, a sentence may potentially be overturned, with the result that a new sentencing hearing must be held.

Because there is no canonical well-ordering of all sets, a construction that relies on a well-ordering may not produce a canonical result, even if a canonical result is desired ( as is often the case in category theory ).

Archipelagos are often volcanic, forming along island arcs generated by subduction zones or hotspots, but may also be the result of erosion, deposition and land elevation.

" You may ... fear that the chest pains are a deadly heart attack or that the shooting pains in your head are the result of a tumor or aneurysm.

" While chemical issues in the brain that result in anxiety ( especially resulting from genetics ) are well documented, this study highlights an additional environmental factor that may result from being raised by parents suffering from chronic anxiety.

CRTs can emit a small amount of X-ray radiation as a result of the electron beam's bombardment of the shadow mask / aperture grille and phosphors.

The Lorentz force on the particles acts perpendicular to both the magnetic field lines and the particles ' motion through them, creating an acceleration of charged particles that causes them to emit radiation as a result of the acceleration they undergo as they spiral around the lines of the magnetic field.

Non-sync or " MOS " cameras do not offer these features ; any attempt to match location sound to these cameras ' footage will eventually result in " sync drift ", and the noise they emit typically renders location sound recording useless.

All materials give off, or emit, energy by thermal radiation as a result of their temperature.

As a result, the RF 2005 engines emit 80 percent less particulate matter than required by Euro Stage IV standards.

They emit nearly monochromatic light at 589 nm ( yellow ), to which the materials are insensitive ; as a result they can be extremely bright while still " safe ".

Some types of active KVM switches do not emit signals that exactly match the physical keyboard, monitor, and mouse, which can result in unwanted behavior of the controlled machines.

This interaction may result in a reduction of the efficiency of the chemicals applied ( such as a change in pH value caused by mixing alkalis and acids ) and in cases may even emit toxic fumes.

Both IFRs and LWRs do not emit CO < sub > 2 </ sub > during operation, although construction and fuel processing result in CO < sub > 2 </ sub > emissions, if energy sources which are not carbon neutral ( such as fossil fuels ), or CO2 emitting cements are used during the construction process.