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  2. T wave - Wikipedia

    en.wikipedia.org/wiki/T_wave

    The last half of the T wave is referred to as the relative refractory period or vulnerable period. The T wave contains more information than the QT interval. The T wave can be described by its symmetry, skewness, slope of ascending and descending limbs, amplitude and subintervals like the T peak –T end interval. [1] In most leads, the T wave ...

  3. T wave alternans - Wikipedia

    en.wikipedia.org/wiki/T_wave_alternans

    Microvolt T wave alternans is a variant of T wave alternans that detects T wave alternans signals as small as one-millionth of a volt. Microvolt T wave alternans is defined as an alternation in the morphology of the T wave in an every other beat or AB-AB pattern. It has long been associated with ventricular arrhythmias and sudden death.

  4. Wellens' syndrome - Wikipedia

    en.wikipedia.org/wiki/Wellens'_syndrome

    Wellens' syndrome is an electrocardiographic manifestation of critical proximal left anterior descending (LAD) coronary artery stenosis in people with unstable angina. ...

  5. Terahertz radiation - Wikipedia

    en.wikipedia.org/wiki/Terahertz_radiation

    Terahertz waves lie mostly at the far end of the infrared band, the longest ones in the microwave band. Terahertz radiation – also known as submillimeter radiation, terahertz waves, tremendously high frequency [1] (THF), T-rays, T-waves, T-light, T-lux or THz – consists of electromagnetic waves within the International Telecommunication Union-designated band of frequencies from 0.1 to 10 ...

  6. T-wave - Wikipedia

    en.wikipedia.org/wiki/T-wave

    The term T-wave may refer to: T wave, a portion of the recording of a heartbeat in an electrocardiogram; Terahertz radiation, electromagnetic radiation in the microwave band; T wave (seismic), a form of seismic wave

  7. How a 24-Year-Old Surfer Rode a Wave the Size of 10-Story ...

    www.aol.com/24-old-surfer-rode-wave-163856876.html

    By 11 a.m., Slebir had caught five or six rides on a series of 15- to 20-foot waves. “They weren’t big yet,” he says, “probably just an eighth of the size of came later in the afternoon

  8. Electrocardiography - Wikipedia

    en.wikipedia.org/wiki/Electrocardiography

    T wave: The T wave represents the repolarization of the ventricles. It is generally upright in all leads except aVR and lead V1. Inverted T waves can be a sign of myocardial ischemia, left ventricular hypertrophy, high intracranial pressure, or metabolic abnormalities. Peaked T waves can be a sign of hyperkalemia or very early myocardial ...

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