Owing to its scarcity, high price and radioactivity, actinium has no significant industrial use.

This application is hindered by the scarcity, high cost and radioactivity of curium isotopes.

Thorium oxide gives glass a high refractive index and low dispersion and was formerly used in producing high-quality lenses, but due to its radioactivity has been replaced by lanthanum oxide in modern eye glasses.

Because of the scarcity, high radioactivity and high toxicity, there are currently no uses for protactinium outside of scientific research, and for this purpose, protactinium is mostly extracted from spent nuclear fuel.

# PET scan of the human brain. Neurology: PET neuroimaging is based on an assumption that areas of high radioactivity are associated with brain activity.

Many isotopes that are classed as stable ( i. e. no radioactivity has been observed for them ) are predicted to have extremely long half-lives ( sometimes as high as 10 < sup > 18 </ sup > years or more ).

Consequences included blighted land, relocated communities, tritium-contaminated water, radioactivity, and fallout from debris being hurled high into the atmosphere.

There is also a risk of induced radioactivity caused by neutron activation, which is a major source of noise in high energy astrophysics instruments.

When the high voltage is applied to the tube, its electric field accelerates the small number of ions ( electrically charged atoms ) always present in the gas, created by natural processes such as radioactivity.

Due to the high affinity of biotin to avidin and streptavidin, the radiotherapy accumulates where the antibody is, namely in the tumour, where it delivers its radioactivity.

This also could be circumvented with isotopic separation, but this is more difficult than uranium enrichment due to the high radioactivity of the plutonium, and the smaller mass difference between isotopes.

Detected radioactivity was especially high in eight counties in Iowa and one county each in Nebraska, South Dakota and Illinois.

A useful compound is one that is used either for the medical imaging of certain body parts or tumors ( at low doses of radioactivity ) or treating tumors ( at high doses of radioactivity ).

The TARDIS lands on a rocky planet, which has breathable air but dangerously high levels of radioactivity.

When high voltage is applied to the tube, the electric field accelerates the small number of electrically charged ions always present in the gas, created by natural processes like radioactivity.

Carbon-fiber and phenolic composite materials have become desirable for building necks, and at least one high-end luthier ( Composite Acoustics ) produces a line of all-carbon-fiber guitars, prized for their high stability in changing climates that would cause wood instrument panels to swell and shrink.

A laser printer rapidly produces high quality text and graphics.

Although the engine produces just 92 millinewtons ( 0. 331 ounce-force ) thrust at maximum power ( 2, 100W on DS1 ), the craft achieved high speeds because ion engines thrust continuously for long periods.

The Cahors area produces a high quality specialty " black wine " as well as high-quality truffles and mushrooms.

Methanol was sometimes used instead, but the flames it produces look less impressive, and its lower flash point poses a high risk.

He also developed a medical instrument company Wisap in Munich, Germany, which still produces various endoscopic instruments of high quality.

Since dextropropoxyphene produces relatively modest pain relief compared to other opioids but still produces severe respiratory depression at high doses, it is particularly dangerous when abused, as drug users may take dangerously high doses in an attempt to achieve narcotic effects.

For example, in internal conversion decay, the energy from an excited nucleus may be used to eject one of the inner orbital electrons from the atom, in a process which produces high speed electrons, but is not beta decay, and ( unlike beta decay ) does not transmute one element to another.

A silicone-coating treatment produces a cross-linked material with high density, stability and heat resistance and low surface tension which imparts good anti-stick or release properties.

The instrument became popular with other bassists influenced by his highly melodic style, as it produces a clear tone even when played high up the neck, its deep cutaways allowing easy access to the higher frets.

Although the Sun produces Gamma rays as a result of the nuclear fusion process, these super high energy photons are converted to lower energy photons before they reach the Sun's surface and are emitted out into space.

A scanning electron microscope ( SEM ) is a type of electron microscope that produces images of a sample by scanning over it with a high energy focused beam of electrons.

Electronic sputtering produces high sputtering yields from insulators, as the electronic excitations that cause sputtering are not immediately quenched, as they would be in a conductor.

The worm is eventually activated, and the details of all the government's dark secrets ( clandestine genetic experimentation that produces crippled children, bribes and kickbacks from corporations, concealed crimes of high public officials ) now become accessible from anywhere on the network-in fact, those most affected by a particular crime of a government official are emailed the full details.

Not all welded materials are equally amenable to ultrasonic inspection ; some materials have a large grain size that produces a high level of background noise in measurments.

Modern hydroponic farming produces very high yields in greenhouses without using any soil.

When a small meteor enters the Earth's atmosphere at a high velocity, it produces a streak of light as the object is vaporized.

The most common metal used is copper, which can be kept cool easily, due to its high thermal conductivity, and which produces strong K < sub > α </ sub > and K < sub > β </ sub > lines.

A 3: 1 ratio produces a hearty, heavy, nutritious loaf high in protein and essential fatty acids.

This easy assay, which can be seen with the naked eye, without the aid of instruments, is possible because catalase has a very high specific activity, which produces a detectable response.

Since this style of reactor produces high power without heavy castings to contain high pressures, it is well suited to spacecraft.

From high in the tree, the whole block lay within range of the eye, but the ground was almost nowhere visible.

Master Gorton, having foully abused high and low at Aquidneck is now bewitching and bemaddening poor Providence, both with his unclean and foul censures of all the ministers of this country ( for which myself have in Christ's name withstood him ), and also denying all visible and external ordinances in depth of Familism: almost all suck in his poison, as at first they did at Aquidneck.

The second monochromator does not have an exit slit ; hence the spectral environment at both sides of the analytical line becomes visible at high resolution.

The significant presence of visible minorities from British Columbia in both the provincial and federal spheres of government also reflects the high degree of multiculturalism that has come to be associated with Canada.

However, in plant tissues that carry on photosynthesis, carotenoids act to quench electronically excited chlorophyll produced by visible light in a process called non-photochemical quenching, in order to prevent reactions which would otherwise infere with photosynthesis at high light levels.

A prior separation stage is necessary and the additives are first separated by high liquid chromatography ( HPLC ) and then determined on-line using a UV and / or visible detector.

The arms are visible because the high density facilitates star formation, and therefore they harbor many bright and young stars.

Some progress was visible: agriculture in the Lowlands was steadily upgraded after 1700 and standards remained high.

Appearing as practical electronic components in 1962, early LEDs emitted low-intensity red light, but modern versions are available across the visible, ultraviolet, and infrared wavelengths, with very high brightness.

These were diffuse filamentary clouds that are visible at high galactic latitudes ( looking out of the plane of the galactic disc ).

The histone tail extensions constitute up to 30 % by mass of histones, but are not visible in the crystal structures of nucleosomes due to their high intrinsic flexibility, and have been thought to be largely unstructured.

Quasars are extremely luminous and were first identified as being high redshift sources of electromagnetic energy, including radio waves and visible light, that were point-like, similar to stars, rather than extended sources similar to galaxies.

On the peninsula, the eastern line of the Great Rift fault is visible in the steep and, in places, high escarpment that parallels the Red Sea between the Gulf of Aqaba and the Gulf of Aden.

The ICBM's high trajectory meant they became visible to defensive radars not long after being launched, which meant that defensive systems would have time to prepare.

A better understanding of electromagnetic pulse ( EMP ) presented new problems ; a warhead set off at high altitudes and long ranges from the defensive missiles could blind the radars, making the incoming warheads only become visible at lower altitudes.

He successfully energized the GOP base as a highly visible campaigner to reelect President William McKinley on a platform of high tariffs, the gold standard, imperialism, prosperity at home and victory abroad.

Sectioned High explosive anti-tank warhead | high explosive anti-tank round with the inner shaped charge visible

A tornado is not necessarily visible ; however, the intense low pressure caused by the high wind speeds ( as described by Bernoulli's principle ) and rapid rotation ( due to cyclostrophic balance ) usually causes water vapor in the air to condense into cloud droplets due to adiabatic cooling.

In terms of the visible spectrum, " brown " refers to high wavelength ( low frequency ) hues, yellow, orange, or red, in combination with low luminance or saturation.

In his poems and plays alike his style is limpid, elevated, profuse ; his flight is sustained at a high pitch without visible excitement.

For example, in Sri Lanka's Yala National Park, leopards have been ranked by visitors to be among the least visible of all animals in the park despite their high concentration in the reserve.

Within the text, they interpreted three definitive astronomical events: there was a new moon on the day of the slaughter ( as required for a solar eclipse ); Venus was visible and high in the sky six days before ; and the constellations Pleiades and Boötes were both visible at sunset 29 days before.

The main advantage of scanline rendering over Z-buffering is that visible pixels are only ever processed once — a benefit for the case of high resolution or expensive shading computations.