Spectrum
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This disambiguation page lists articles associated with the same or a similar title.
- Electromagnetic spectrum [r]: The range of electromagnetic waves covering all frequencies and wavelengths. [e]
- Spectrum (linear operator) [r]: A set of values {λ} characteristic of an operator O mapping a Banach space into itself such that O xλ = λ xλ for some nonzero vectors xλ. [e]
- Political spectrum [r]: A reference line locating political positions in a one-dimensional continuum from left-wing (egalitarian leaning) to right-wing (hierarchy supporting) [e]
- Action spectrum [r]: Scientific terminology for the correlation between specific wavelengths of the light spectrum and corresponding physiological activity. [e]
- Spectrum bias [r]: Differences between the type of patients in the clinically relevant population and the study population, which leads to an overestimation of the sensitivity and specificity of a test. [e]
- Spread spectrum [r]: A communications technique in which the information to be transmitted travels redundantly over multiple channels (e.g., frequencies, time slots), the number and identity of which may change. It provides greater immunity to noise and electronic attack, makes it harder to intercept, and can increase capacity of a shared medium. [e]