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2. Low Frequency Analyzer and Recorder - Wikipedia

   en.wikipedia.org/wiki/Low_Frequency_Analyzer_and...

   A working model of the Low Frequency Analyzer and Recorder was delivered in May 1951 which operated with real time analysis of a frequency band of 1 to 1/2 Hz. Along with the working model was a proposal for hydrophones, cables, processing systems and beamforming so that a hydrophone array could present multiple azimuthal beams to be displayed. [7]

3. Progress chart - Wikipedia

   en.wikipedia.org/wiki/Progress_chart

   Chore chart; Behavior charts Single behavior charts; Multiple behavior charts; Homework charts; Toilet training charts; Single behavior charts can be used for all ages and is best used for learning one skill at a time. Multiple behavior charts also can be used for a variety of ages and can be used for processes that require several steps. [3]

4. Ethogram - Wikipedia

   en.wikipedia.org/wiki/Ethogram

   Ethograms are used extensively in the study of welfare science. Ethograms can be used to detect the occurrence or prevalence of abnormal behaviours (e.g. stereotypies, [5] [6] feather pecking, [7] tail-biting [8]), normal behaviours (e.g. comfort behaviours), departures from the ethogram of ancestral species [9] and the behaviour of captive animals upon release into a natural environment.

5. Precision teaching - Wikipedia

   en.wikipedia.org/wiki/Precision_teaching

   It is one of the few quantitative analyses of behavior forms of applied behavior analysis. It comes from a very strong quantitative scientific basis and was pioneered by Ogden Lindsley in the 1960s based largely on Skinner's operant conditioning. Precision teaching is a type of programmed instruction that focuses heavily on frequency as its ...

6. Comparison of analog and digital recording - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_analog_and...

   The frequency response for a conventional LP player might be 20 Hz to 20 kHz, ±3 dB. The low-frequency response of vinyl records is restricted by rumble noise (described above), as well as the physical and electrical characteristics of the entire pickup arm and transducer assembly. The high-frequency response of vinyl depends on the cartridge.

7. Theta wave - Wikipedia

   en.wikipedia.org/wiki/Theta_wave

   Hippocampal theta waves, with a frequency range of 6–10 Hz, appear when a rat is engaged in active motor behavior such as walking or exploratory sniffing, and also during REM sleep. [3] Theta waves with a lower frequency range, usually around 6–7 Hz, are sometimes observed when a rat is motionless but alert.