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  2. Frequency-hopping spread spectrum - Wikipedia

    en.wikipedia.org/wiki/Frequency-hopping_spread...

    Frequency-hopping spread spectrum ( FHSS) is a method of transmitting radio signals by rapidly changing the carrier frequency among many frequencies occupying a large spectral band. The changes are controlled by a code known to both transmitter and receiver. FHSS is used to avoid interference, to prevent eavesdropping, and to enable code ...

  3. Ten Symptoms of Heart Failure Getting Worse - Healthline

    www.healthline.com/health/heart-failure/symptoms...

    increased shortness of breath. swelling in the ankles, legs, abdomen, or other parts of your body. fatigue. chest discomfort. sudden weight gain. reduced exercise tolerance. persistent cough or ...

  4. Familial hypercholesterolemia (FH) is an inherited condition that results in high levels of low-density lipoprotein (LDL) cholesterol. This also results in high total cholesterol as well and can ...

  5. What Is a Normal Resting Heart Rate? - Healthline

    www.healthline.com/health/heart-disease/ideal...

    80 to 136 beats per minute. 160 beats per minute. 65 years. 78 to 132 beats per minute. 155 beats per minute. 70 years and up. 75 to 128 beats per minute. 150 beats per minute. Note that certain ...

  6. Bradycardia (Low Heart Rate): Symptoms, Causes, and Treatment

    www.webmd.com/heart-disease/atrial-fibrillation/...

    Bradycardia (pronounced bray-duh-kaar-dee-uh) is a slow heart rate. Adults usually have a heart rate between 60 and 100 beats per minute, but if you have bradycardia, your heart beats fewer than ...

  7. Monitoring Your Heart Rate: What's Normal and When to Worry

    www.webmd.com/heart-disease/heart-failure/...

    A healthy heart rate for adults over 18 is usually between 60 and 100 beats per minute (bpm). Your number may vary. The best time to measure your resting heart rate is just after you wake up in ...

  8. McDonnell Douglas F-4 Phantom II - Wikipedia

    en.wikipedia.org/wiki/McDonnell_Douglas_F-4...

    The McDonnell Douglas F-4 Phantom II [N 1] is an American tandem two-seat, twin-engine, all-weather, long-range supersonic jet interceptor and fighter-bomber originally developed by McDonnell Aircraft for the United States Navy. [2] Proving highly adaptable, it entered service with the Navy in 1961 [3] before it was adopted by the United States ...

  9. Cardiac (character) - Wikipedia

    en.wikipedia.org/wiki/Cardiac_(character)

    Superhuman strength, speed, stamina and durability. Accelerated healing factor. Wields a pulse staff, and rides a beta-propelled stingray hang-glider. Channels beta particles via the neural web of his vibranium-mesh skin. Cardiac ( Elias Wirtham) is a fictional character, appearing in American comic books published by Marvel Comics.