spin


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spin

Etymology: AS, spinnan, to draw threads
1 the intrinsic angular momentum of an elementary particle or a nucleus of an atom.
2 intrinsic joint movements about an axis perpendicular to the articular surface.

spin

Imaging
An MRI term for the property (spin) exhibited by atomic nuclei containing an odd number of protons and/or neutrons.

SPIN

Abbreviation for:
Sandwell Public Information
Social Phobia Inventory
speech perception in noise

Patient discussion about spin

Q. Is this Vertigo? When I stand on high places and look down and feel very dizzy. Is this vertigo?

A. Vertigo is often confused with a fear of heights. However, the dizzy feeling when you look down from a high place is not the same as vertigo, which can occur at any time and may last for many years.
Vertigo is more severe than dizziness, which is often experienced as a feeling of light-headedness when you stand up. Vertigo can make moving around difficult, as the sensation of spinning affects your balance.

Q. What causes Vertigo? My friend says she has vertigo and suffers from dizzy spells every now and then. Is this physiological or physical?

A. Vertigo is most commonly caused by a problem with the balancing mechanism in the inner ear. This is a coiled tube of fluid that lies behind the eardrum called the labyrinth. Viral infections such as a common cold or flu can spread to the labyrinth (labyrinthitis). Less commonly, labyrinthitis is caused by a bacterial infection of the middle ear (otitis media). Vertigo caused by an ear infection usually starts suddenly, and may be accompanied by a painful ear and high temperature.
Vertigo can also occur because of:
Arthritis in the neck, Migraines, Poor circulation, Motion sickness and over-breathing (hyperventilation), Alcohol and certain drugs.

Q. What Is The Difference Between Dizziness and Vertigo? I have really bad dizziness problems, and my doctor wrote down that I have "true vertigo". What is the difference between vertigo and dizziness?

A. Vertigo is a term that means there is a feeling as if in a spin. Dizziness describes any lack of stableness, not necessarily a true spinning sensation. There are two types of vertigo: subjective and objective. Subjective vertigo is when a person feels a false sensation of movement. Objective vertigo is when the surroundings will appear to move past a person's field of vision.

More discussions about spin
References in periodicals archive ?
Transversely polarized cold neutrons traveling through liquid helium experience a PV spin rotation due to the weak interaction with an angle proportional to a linear combination of these weak meson exchange amplitudes.
A measurement of the n-p spin rotation observable would determine [f.
After the first resonator, each spin component is reversed, and then with the exact same compensating spin precessions through the second resonator, the second half-[pi] flipper and the spin analyser exert to draw the neutron spin echo (NSE) pattern in the neutron count rates with the interference visibility.
0][barn] [approximately equal to] 3000 * [lambda][[Angstrom]]) and l is the length of the spin filter cell.
Since the late 1980s, experiments have revealed that no more than 20 to 30 percent of a nucleon's spin comes from the spin of its valence quarks.
Instead of manipulating electrons' spins with microscale magnetic fields, which tend to be weak and sluggish, researchers in California and Pennsylvania have devised a simpler, electric means of controlling the spins.
The associated spin dynamics and magnetic ordering of the Cu ions is thus driven by this two-dimensional (2d) nature.
SPIN creates a new way to process payments from point-of-sale (POS), and most importantly, gets the money into a client's bank account faster.
According to this theory, as gas from a companion spirals onto a pulsar, it imparts angular momentum, accelerating the pulsar's spin.
In some applications, such as Microsoft Excel, Logitech's technology also senses the speed at which people spin the wheel -- if spun rapidly, the wheel goes into free-spin mode; if spun slowly, the wheel shifts into click-to-click mode.
LaBella and his colleagues have found that a surface step only two dozen atoms high can disrupt the spin orientation of more than 80 percent of the electrons injected there.
Like an off-kilter top, the axis of each tipped spin begins to rotate, or precess, swinging its own smaller magnetic field with it.