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2. Jeans instability - Wikipedia

   en.wikipedia.org/wiki/Jeans_instability

   At the same time, gravity will attempt to contract the system even further, and will do so on a free-fall time = / /, where is the universal gravitational constant, is the gas density within the region, and = / is the gas number density for mean mass per particle (μ = 3.9 × 10 −24 g is appropriate for molecular hydrogen with 20% helium by ...

3. Medical alarm - Wikipedia

   en.wikipedia.org/wiki/Medical_alarm

   A medical alarm [1] is an alarm system designed to signal the presence of a hazard requiring urgent attention and to summon emergency medical personnel. Other terms for a medical alarm are Personal Emergency Response System (PERS) or medical alert. It is especially important to recognize the need to respond to situations where the person is ...

4. Plasma stability - Wikipedia

   en.wikipedia.org/wiki/Plasma_stability

   Firehose instability (a.k.a. hose instability), not to be confused with the similarly named Firehose instability in galactic dynamics; Fish instability, Free electron maser instability, Gyrotron instability, Helical (Helix) instability, Jeans instability, [23] [24] Magnetic buoyancy instability. Interchange instability (a.k.a. flute instability ...

5. Does Medicare cover medical alert systems? Here’s what ...

   www.aol.com/finance/does-medicare-cover-medical...

   While not medical alert devices, they may help in a medical emergency. Both Google Nest's and Amazon Echo's line of devices have the ability to call a saved contact for help. You must set this up ...

6. Vitamin D may not prevent fractures or falls in older adults ...

   www.aol.com/vitamin-d-may-not-prevent-102300100.html

   Vitamin D supplements, with or without calcium, are important for overall health. However, vitamin D supplements have no effect on preventing falls or fractures in older adults, according to the U ...

7. Best cutting-edge health and fitness tech from CES 2025 - AOL

   www.aol.com/news/best-cutting-edge-health...

   The Brainband uses all that info to play personalized audio through bone-conduction speakers, helping you fall asleep faster and sleep more deeply. The folks at Earable Neuroscience, the company ...