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2. Cryofixation - Wikipedia

   en.wikipedia.org/wiki/Cryofixation

   Typically, a sample is plunged into liquid nitrogen or into liquid ethane or liquid propane in a container cooled by liquid nitrogen. The ultimate objective is to freeze the specimen so rapidly (at 10 4 to 10 6 K per second) that ice crystals are unable to form, or are prevented from growing big enough to cause damage to the specimen's ...

3. Flash freezing - Wikipedia

   en.wikipedia.org/wiki/Flash_freezing

   A supercooled liquid will stay in a liquid state below the normal freezing point when it has little opportunity for nucleation—that is, if it is pure enough and is in a smooth-enough container. Once agitated it will rapidly become a solid. During the final stage of freezing, an ice drop develops a pointy tip, which is not observed for most ...

4. Cryopreservation - Wikipedia

   en.wikipedia.org/wiki/Cryopreservation

   A tank of liquid nitrogen, used to supply a cryogenic freezer (for storing laboratory samples at a temperature of about −150 °C or −238 °F) Controlled-rate and slow freezing, also known as slow programmable freezing (SPF), [18] is a technique where cells are cooled to around -196 °C over the course of several hours.

5. 21 foods that lower blood pressure — and which foods to avoid

   www.aol.com/17-foods-lower-blood-pressure...

   High blood pressure is caused by the force of blood flow in the arteries being too high. The DASH diet includes heart-healthy foods that lower blood pressure. 21 foods that lower blood pressure ...

6. Cryoprotectant - Wikipedia

   en.wikipedia.org/wiki/Cryoprotectant

   A cryoprotectant is a substance used to protect biological tissue from freezing damage (i.e. that due to ice formation). Arctic and Antarctic insects, fish and amphibians create cryoprotectants (antifreeze compounds and antifreeze proteins) in their bodies to minimize freezing damage during cold winter periods. Cryoprotectants are also used to ...

7. Liquid nitrogen - Wikipedia

   en.wikipedia.org/wiki/Liquid_nitrogen

   Liquid nitrogen is produced commercially from the cryogenic distillation of liquified air or from the liquefaction of pure nitrogen derived from air using pressure swing adsorption. An air compressor is used to compress filtered air to high pressure; the high-pressure gas is cooled back to ambient temperature, and allowed to expand to a low ...

8. What is high blood pressure and why is it called the 'silent ...

   www.aol.com/high-blood-pressure-why-called...

   High blood pressure, also called hypertension, is a vicious and smart adversary.It’s vicious because it greatly increases the odds of heart disease and stroke, some of the leading causes of ...

9. Cryogenics - Wikipedia

   en.wikipedia.org/wiki/Cryogenics

   Nitrogen is a liquid under −195.8 °C (77.3 K).. In physics, cryogenics is the production and behaviour of materials at very low temperatures.. The 13th International Institute of Refrigeration's (IIR) International Congress of Refrigeration (held in Washington DC in 1971) endorsed a universal definition of "cryogenics" and "cryogenic" by accepting a threshold of 120 K (−153 °C) to ...