Given a Boolean function f: {0,1}n->{0,1}, the sensitivity sX(f) of an input X=x1 xn is the number of variables such that flipping them changes the value of f(X) Then s(f) is the maximum of sX(f) over all X
The ability of a shortwave radio to repond to weak signals It is measured in microvolts The lower the measurement in microvolts, the fainter the signal the radio can receive
refers to the lowest level of PPM capable of detection by a gas leak detector Generally, FID units are the most sensitive Many semi-conductor sensors are only sensitive down to 10 to 300 PPM range
In wired microphones, phono cartridges, etc , the amount of output for a given input In RF receivers, the amount of input signal a device requires in order to produce a reference quality of output
A term used with microphones to indicate how well a microphone will pick up the sound from the voice or instrument Sensitivity is affected by such things as distance to the sound source, manufacturer (some mics just pick up better than others), gain on the amplifier, directionality, resonance of the room (feedback), etc
The ratio of output power to input power in a speaker system, defined as either as power sensitivity or voltage sensitivity  Power sensitivity is determined by inputting one watt into a speaker and measuring what comes out; the ratio is the power sensitivity rating  The current/voltage relationship depends on the speakerÕs impedance Â
Sensitivity in an information technology environment consists of the system, data, and applications that must be examined individually and in total All systems and applications require some level of protection for confidentiality, integrity, and availability This level is determined by an evaluation of the sensitivity and criticality of the information processed, the relationship of the system to the organization's mission, and the economic value of the system components
the ability to respond to affective changes in your interpersonal environment the ability to respond to physical stimuli or to register small physical amounts or differences; "a galvanometer of extreme sensitivity"
{i} ability to perceive sensation; responsiveness; delicateness, state of requiring special treatment or care; susceptibility to outside influences; quality of being temperamental
The "what if" relationship between variables; the degree to which changes in one variable cause changes in another variable A specific synonym is volatility
the ability of an organism to be affected by a drug or other agent (e g , a virus is sensitive to AZT if AZT is able to prevent viral replication) Sensitivity also refers to a statistical measure of the accuracy of a screening test, i e , how likely a test is to label as positive those who have a disease or condition Contrast with specificity
The ability of a system to detect epidemics and other changes in disease occurrence The proportion of persons with disease who are correctly identified by a screening test or case definition as having disease
When talking about riometer experiments, sensitivity refers to the minimum change in sky temperature (measured in Kelvin (K)) that can be detected by the given riometer system It is also important how big the area is that is affected by the temperature change Generally, the requirements the antenna system has to fulfil in order to achieve the required spatial resolution are harder to fulfil than the requirements for a reasonable sensitivity This means that, in general, one need not worry about the sensitivity being too low
For a receiver, the input signal (in : V or mV) required for a specific output level The sensitivity of a receiver is taken as the minimum signal level required to produce an output signal having a specified signal-to-noise ratio *
An operating characteristic of a diagnostic test that measures the ability of a test to detect a disease (or condition) when it is truly present Sensitivity is the proportion of all diseased patients for whom there is a positive test, determined as the number of true positives divided by the sum of true positives + false negatives (Contrast with specificity )
The capacity of a metal detector to perceive changes in conductivity within the detection pattern Generally, the more sensitivity a detector can smoothly provide, the more depth it will achieve in sensing targets
In an electronic device, e g , a communications system receiver, or detection device, e g , PIN diode, the minimum input signal required to produce a specified output signal having a specified signal-to-noise ratio, or other specified criteria (188) Note 1: The signal input may be expressed as power in dBm or as field strength in microvolts per meter, with input network impedance stipulated Note 2: "Sensitivity" is sometimes improperly used as a synonym for "responsivity "
The control on a component that adjusts the gain of an electronic circuit (e g , Most power amplifiers will produce minimum hiss when the sensitivity control is set to its minimum )
The ratio of a change in response to a change in an undesirable or secondary input (as the scale factor variation to a unit of power supply voltage change)