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  2. M squared - Wikipedia

    en.wikipedia.org/wiki/M_squared

    The diameter of the multimode beam is then M times that of the embedded Gaussian beam everywhere, and the divergence is M times greater, but the wavefront curvature is the same. The multimode beam has M 2 times the beam area but 1/M 2 less beam intensity than the embedded beam. This holds true for any given optical system, and thus the minimum ...

  3. Spike-triggered average - Wikipedia

    en.wikipedia.org/wiki/Spike-triggered_average

    The spike-triggered averaging (STA) is a tool for characterizing the response properties of a neuron using the spikes emitted in response to a time-varying stimulus. The STA provides an estimate of a neuron's linear receptive field. It is a useful technique for the analysis of electrophysiological data.

  4. Spike-and-slab regression - Wikipedia

    en.wikipedia.org/wiki/Spike-and-slab_regression

    The "spike" is the probability of a particular coefficient in the model to be zero. The "slab" is the prior distribution for the regression coefficient values. An advantage of Bayesian variable selection techniques is that they are able to make use of prior knowledge about the model.

  5. Detrended fluctuation analysis - Wikipedia

    en.wikipedia.org/wiki/Detrended_fluctuation_analysis

    In stochastic processes, chaos theory and time series analysis, detrended fluctuation analysis (DFA) is a method for determining the statistical self-affinity of a signal. It is useful for analysing time series that appear to be long-memory processes (diverging correlation time, e.g. power-law decaying autocorrelation function) or 1/f noise.

  6. Duke QB Maalik Murphy to transfer after just one season in ...

    www.aol.com/sports/duke-qb-maalik-murphy...

    Henry Belvin IV is the only player other than Murphy on Duke's roster to throw a pass in 2024. Murphy's last TD at Duke will end up being a 39-yard TD pass to Jordan Moore with no time left to ...

  7. 'Volatile conditions' prompt red flag warnings across ...

    www.aol.com/volatile-conditions-prompt-red-flag...

    A month after a devastating blaze in Southern California, red flag warnings have been issued across Los Angeles and parts of the region Monday as strong wind gusts could potentially cause ...

  8. Standard addition - Wikipedia

    en.wikipedia.org/wiki/Standard_addition

    To apply this method, analysts prepare multiple solutions containing equal amounts of unknown and spike them with varying concentrations of the analyte. The amount of unknown and the total volume are the same across the standards and the only difference between the standards is the amount of analyte spiked.

  9. Best CD rates today: Protect your money from holiday spending ...

    www.aol.com/finance/best-cd-rates-today-protect...

    The FDIC is an independent government agency charged with maintaining stability and public confidence in the U.S. financial system and providing insurance on consumer deposit accounts.