interference

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Related to Destructive interference: Interference of Light

interference

 [in″ter-fēr´ens]
1. opposition to or hampering of some activity.
2. impairment of cardiac impulse conduction due to refractoriness of the tissue; the refractoriness is a physiological response to passage of a preceding impulse.
3. a premature contact point on the occlusal surface of the teeth.
electromagnetic interference electrical signals of nonphysiological origin that may affect pacemaker function; they can either inappropriately inhibit pacemaker output or trigger unnecessary pulses. Pacemakers with bipolar leads are less sensitive to this.
occlusal i's areas of interference on teeth that hamper proper occlusion and smooth, gliding, harmonious jaw movements.

in·ter·fer·ence

(in'tĕr-fēr'ens),
1. The coming together of waves in various media in such a way that the crests of one series correspond to the hollows of the other, the two thus neutralizing each other; or so that the crests of the two series correspond, thus increasing the excursions of the waves.
2. Collision within the myocardium of two waves of excitation at the junction of territories controlled by each, as is seen in atrioventricular (AV) dissociation.
3. Also in AV dissociation, the disturbance of the regular rhythm of the ventricles by a conducted impulse from the atria, for example, by a ventricular capture (interference beat).
4. The condition in which infection of a cell by one virus prevents superinfection by another virus, or in which superinfection prevents effects that would result from infection by either virus alone, even though both viruses persist.
[inter- + L. ferio, to strike]

interference

Lab medicine The effect that unmeasured components in a specimen or system have on the accuracy of a component being measured. See Electromagnetic interference, Matrix, Matrix interference, Matrix effect, Nerve interference.

in·ter·fer·ence

(in'tĕr-fēr'ĕns)
1. The coming together of waves in various media in such a way that the crests of one series correspond to the hollows of the other, the two thus neutralizing each other; or so that the crests of the two series correspond, thus increasing the excursions of the waves.
2. Collision within the myocardium of two waves of excitation at the junction of territories controlled by each, as is seen in atrioventricular dissociation.
3. Also, in atrioventricular dissociation, the disturbance of the regular rhythm of the ventricles by a conducted impulse from the atria, e.g., by a ventricular capture (interference beat).
4. The condition in which infection of a cell by one virus prevents superinfection by another virus, or in which superinfection prevents effects that would result from infection by either virus alone, even though both viruses persist.
5. Effect of a component on the accuracy of measurement of the desired analyte.
[inter- + L. ferio, to strike]

interference

see CHROMATID INTERFERENCE.

interference

Modification of light intensity arising from the joint effects of two or more coherent trains of light waves superimposed at the same point in space and arriving at the same instant. The waves may either reinforce each other, being in phase (constructive interference) or cancel each other, being out of phase (destructive interference). See coherent sources; Young's experiment; holography; phase; optical coherence tomography.

in·ter·fer·ence

(in'tĕr-fēr'ĕns)
1. The coming together of waves in various media in such a way that the crests of one series correspond to the hollows of the other, the two thus neutralizing each other; or so that the crests of the two series correspond, thus increasing the excursions of the waves.
2. Condition in which infection of a cell by one virus prevents superinfection by another virus, or in which superinfection prevents effects that would result from infection by either virus alone, even though both viruses persist.
[inter- + L. ferio, to strike]

Patient discussion about interference

Q. Does omega-3 interfere with diabetes treatment? I’m a 55 years old man, and was diagnosed with diabetes mellitus, along with high lipid levels several years ago. A couple of months ago I read that omega-3 can protect your heart and brain, so I started to take omega-3 pills every day. Yesterday I read in some website that omega-3 can interfere with the drugs I take to treat my diabetes- Is that right?

A. Omega-3 doesn’t influence the treatment of your diabetes, and since you have high lipids, that can contribute to some of the damage diabetes does to your body, omega-3, that may lower the lipid level in your may actually help you treat yourself overall better. However - consult your doctor. Better be safe than sorry...

Q. Will my bipolar meds (lamictal and depakote) interfere with my birth control pills? We have been married for the past 12 yrs but we don’t have a child because I am paranoid of delivery. But it doesn’t affect our intimacy. I am using birth control pills for the past few years and I could rely on it. Now the new problem is that I was recently diagnosed as bipolar-II. The Doctor prescribed some medicines for me. Will my bipolar meds (Lamictal and Depakote) interfere with my birth control pills?

A. there are interactions, birth control pills can reduce the amount of Lamictal in the blood, causing it to be less affective. the drug level in plasma should be monitored. ask both your therapists about it- your gynecologist and the psychiatrist.

More discussions about interference
References in periodicals archive ?
Actually, tumor cells lose the capacity for destructive interference according to their loss of coherence.
The destructive interference between [Q.sub.2] and [D.sub.3] and [D.sub.3] and [D.sub.4] generate two Fano resonance dips in the visible spectrum.
When both the 1/2[Lambda] phase shift is generated and the amplitudes are equalized, optimal destructive interference between the two reflected components is obtained.
Destructive interference occurs when light of a specific wavelength is reflected from both the substrate/thin film interface and the air/ thin film interface.
According to quantum mechanics, this effect results from constructive and destructive interference between the two different ways of exciting hydrogen chloride molecules.
The coordination between WiMAX release 2 (WiMAX-2 or IEEE 802.16m) and both TVR and P-P FWA systems is considered due to the opportunity of sharing of a sub-band within UHF spectrum, which leads to destructive interference. The proposed method mainly depends on spectrum emission mask (SEM) technique to investigate different interference scenarios such as co-channel, adjacent channel with overlapping band (Overlp_B), with zero guard band (ZGB), or with guard band (GB), for different bandwidths of the interferer and victim.
After reflection, the beams recombine inside the interferometer, undergoing constructive and destructive interference and producing the fringe pattern.
For perfectly periodic waves, destructive interference occurs whenever one wave lags behind the other by half a wavelength or one-and-a-half wavelengths or two-and-a-half wavelengths and so on.
That's because of a special multiple-wavelength technology that compensates for situations when reflected light in tensity falls to zero, due to destructive interference.
The frequency chirp results in constructive interference between the two pulses at their peak and destructive interference on both sides of the peak.
Presently unprecedented challenges such as terrorism and extremism along with destructive interferences of trans-regional powers are common threats against regional countries and cooperation and consultation of regional states are the only solution to solve those problems, he said.
Since the incoherent propagation of light is not related to constructive and destructive interferences and attenuation is related only to (17), the scaling down the thickness of incoherent layer can be beneficial in order to reduce the number of elements of the model.