excitation


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excitation

 [ek″si-ta´shun]
an act of irritation or stimulation; a condition of being excited or of responding to a stimulus; the addition of energy, as the excitation of a molecule by absorption of photons.
anomalous atrioventricular excitation Wolff-Parkinson-White syndrome.
indirect excitation electrostimulation of a muscle by placing the electrode on its nerve.

ex·ci·ta·tion

(ek'sī-tā'shŭn),
1. The act of increasing the rapidity or intensity of the physical or mental processes.
See also: stimulation.
2. In neurophysiology, the complete all-or-none response of a nerve or muscle to an adequate stimulus, ordinarily including propagation of excitation along the membranes of the cell or cells involved.
See also: stimulation.

excitation

(ĕk′sī-tā′shən)
n.
1. The act or process of exciting or an instance of it.
2. The state or condition of being excited.
3. Physiology The activity produced in an organ, tissue, or part, such as a nerve cell, as a result of stimulation.

excitation

An MRI term for the delivery—i.e., induction or transfer—of energy into spinning nuclei via radio-frequency pulse(s), which bumps the nuclei into a higher energy state. By producing a net transverse magnetisation, an MRI system can evoke a response from the excited system.

ex·ci·ta·tion

(ek'sī-tā'shŭn)
1. The act of increasing the rapidity or intensity of physical or mental processes.
2. neurophysiology The complete all-or-none response of a nerve or muscle to an adequate stimulus, ordinarily including propagation of excitation along the membranes of the cell or cells involved.
See also: stimulation
3. The process whereby radiation causes a bound electron to vibrate or oscillate within its orbit.

excitation

the process by which the electrical stimulation of
  1. a surface membrane results in contraction of the muscle, or
  2. brings about secretion of a transmitter substance at a nerve ending.

ex·ci·ta·tion

(ek'sī-tā'shŭn)
Act of increasing the rapidity or intensity of the physical or mental processes.

Patient discussion about excitation

Q. I am excited to know in what way diet helps in preventing osteoporosis? my mother is suspecting to be having osteoporosis. She regularly complains of leg pain. Upon consultation with the doctor it was found with low calcium in her blood. She was given calcium tablets and was told to increase in the diet rich in calcium. She is taking milk and yoghurt especially. She is not well yet but shows some improvement. I am excited to know in what way diet helps in preventing osteoporosis?

A. you see, our bones are a giant storage of calcium. our body needs a very steady concentration of calcium, if it'll be low the body will take it form your bones. if there's too much- it'll either build bones (but only if he'll think he needs too- that is where sport get in the picture)or you'll urinate it.any way, you rather have large amount of calcium in your diet then less. but it's not enough- sport and other medication can help.

Q. my wife is pregnant !!! i am so excited ! this is the first time out of many i hope !!! but i have concerns that i would like to share with the community here ... i am afraid of being a bad father , i am afraid i won't know how to be a father ... where do u start ... how do i support my wife after the though experince ... how do i take care of the child ... a lot of things a re running through my mind with no answer ,can any one help me to calm down ????

A. you won't be a perfect father but you'll try to be. that's what's important. thousands of years of evolution gave you the basics. you'll be fine :)
congratulations!!

Q. Hello everyone !!! are you excited with the swearing of Obama To presidency??? i sure am !!! may we all get a little joy and peaceful time wit hour fresh president ... and let us all wish him a great start and a chance to change our lives ... Good Luck Mr.President Obama !!!

A. well said Mrfoot65! May all the people in America receive the healthcare treatment they need. God bless.

More discussions about excitation
References in periodicals archive ?
Cite this article as: Vondrak J, Ron C: New GFZ effective angular momentum excitation functions and their impact on nutation.
Authors attempted to determine the excitation current required to provide the unity power factor of the system under different load values on the motor by means of this experimental set.
Textile electrodes: In the crossover trial, muscle excitation was assessed using EMG shorts (Myonear Pro, Myontec, Finland), the conductive electrodes and the associated wires of which are integrated into the fabric.
We consider the SM, whose stator winding is powered by a three-phase network, and on the rotor is a starter winding with n rods at each pole and an excitation winding.
Figures 9 and 10 show the dependencies of the ratio of luminescence intensity for 630 and 970 nm bands to the X-ray conduction current on excitation intensity at temperatures: 8, 85, and 295 K for respective luminescence centers.
Fluorescence properties of natural CDOM from three Karelian freshwater lakes were examined within the excitation wavelength range 230-510 nm, and the influence of [[lambda].sub.ex] on fluorescence quantum yield and wavelength of emission maximum was determined.
In order, to identify the best excitation wavelength to excite the compressor oils for a higher emission intensity, excitation spectroscopy was performed varying the excitation from 360 to 420 nm (UV region) and the emission was observed from 380 to 540 nm (UV-Vis region).
In the case of the 15 Hz excitation, scenario D2 has exhibited the superharmonic 30 Hz highlighted in the tests done before (Figure 25).
Changing phase and amplitude of harmonic current can change excitation current and can control torque.
Since the excitation capacitance required for the generator changes according to the frequency and load, the ladder control system given above is used to supply all possible capacitance demands in a binary-coded system.
Radiation Pattern Tolerance Analysis in the Presence of Excitation Amplitude and Phase Errors
Isolating the ground state and its first radial excitation from phenomenological side for the correlation functions we have