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News tagged with potassium

Study evaluates blood potassium levels after heart attack and risk of in-hospital mortality

Patients hospitalized after a heart attack who had blood potassium levels of between 3.5 and less than 4.5 mEq/L (milliEquivalents per liter) had a lower risk of death than patients with potassium levels that were higher ...

Medicine & Health / Cardiology

created Jan 10, 2012 | popularity not rated yet | comments 0

RNA editing responsible for colder water survival in octopus

(PhysOrg.com) -- Researchers have discovered that when it comes to the survival of an octopus living in frigid waters, the reasoning is not a difference in the gene DNA but rather a difference in the RNA editing.

Biology / Cell & Microbiology

created Jan 06, 2012 | popularity 5 / 5 (1) | comments 0 | with audio podcast report

Strip-till improves nutrient uptake and yield

The practice of deep banding fertilizer is growing in popularity as more growers turn to strip-till. However, this method may be costing growers more than it is worth.

Space & Earth / Environment

created Dec 12, 2011 | popularity not rated yet | comments 0

People with DFNA2 hearing loss show increased touch sensitivity

People with a certain form of inherited hearing loss have increased sensitivity to low frequency vibration, according to a study by Professor Thomas Jentsch of the Leibniz-Institut für Molekulare Pharmakologie (FMP)/Max ...

Medicine & Health / Neuroscience

created Dec 09, 2011 | popularity not rated yet | comments 0

Where does my beer come from?

Researchers at the University of Seville (Spain) have developed a technique based on chemical patterns for identifying the country of origin of beer. The content of iron, potassium, phosphates and polyphenols ...

Medicine & Health / Other

created Dec 01, 2011 | popularity not rated yet | comments 1 | with audio podcast

Study indicates brain plays role in regulating blood sugar in humans

Researchers at Albert Einstein College of Medicine of Yeshiva University have demonstrated for the first time that the brain is a key player in regulating glucose (sugar) metabolism in humans. The findings, published today ...

Medicine & Health / Research

created Nov 07, 2011 | popularity not rated yet | comments 0 | with audio podcast

Electrochemistry controlled with a plasma electrode

Engineers at Case Western Reserve University have made an electrochemical cell that uses a plasma for an electrode, instead of solid pieces of metal.

Chemistry / Materials Science

created Oct 20, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

What keeps the Earth cooking?

What spreads the sea floors and moves the continents? What melts iron in the outer core and enables the Earth's magnetic field? Heat. Geologists have used temperature measurements from more than 20,000 boreholes ...

Physics / General Physics

created Jul 17, 2011 | popularity 4.6 / 5 (24) | comments 50 | with audio podcast

Salt diet dangers may be influenced by potassium

The debate about the dangers of eating too much salt has gained a new wrinkle: A federal study suggests that the people most at risk are those who also get too little potassium.

Medicine & Health / Health

created Jul 11, 2011 | popularity 4.8 / 5 (4) | comments 1

Changes in one heart molecule lead to arrhythmia

(Medical Xpress) -- A University at Albany biologist and his research team have discovered that a tiny cardiac molecule may have major implications for understanding irregular heartbeat, or arrhythmia. Haijun ...

Medicine & Health / Cardiology

created Jun 20, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

New superconductive properties discovered in old sandwich material

(PhysOrg.com) -- Japanese researchers, led by Masashi Kawasaki, have discovered that a previously known kind of double layered material created using electrostatic doping can be used as a superconductor.

Physics / Superconductivity

created May 23, 2011 | popularity 4.2 / 5 (5) | comments 0 | with audio podcast report

Potassium channel gene modifies risk for epilepsy

Vanderbilt University researchers have identified a new gene that can influence a person's risk for developing epilepsy. The findings, reported in the March 29 Proceedings of the National Academy of Sciences, could improv ...

Medicine & Health / Genetics

created Apr 04, 2011 | popularity 3 / 5 (1) | comments 0 | with audio podcast

Nuke crisis reignites debate on protective pills

(AP) -- The Japanese nuclear crisis has reignited a debate in the U.S. over the government's role in distributing a cheap anti-cancer drug to people living around nuclear power plants.

Medicine & Health / Health

created Mar 30, 2011 | popularity not rated yet | comments 1

Scientists crack molecular code regulating neuronal excitability

A key question in protein biochemistry is how proteins recognize "correct" interaction partners in a sea of cellular factors. Nowhere is that more critical to know than in the brain, where interactions governing ...

Medicine & Health / Research

created Mar 22, 2011 | popularity 5 / 5 (2) | comments 0 | with audio podcast

So far, risk low from radiation in food in Japan

(AP) -- Radiation-tainted spinach from Japan's damaged nuclear reactors may sound scary, but here's a reality check: Even if any made it to stores there, you'd have to be Popeye to eat enough to worry.

Medicine & Health / Health

created Mar 21, 2011 | popularity not rated yet | comments 0

Potassium

Potassium (pronounced /pɵˈtæsiəm/) is the chemical element with the symbol K (Latin: kalium, from Arabic: القَلْيَه‎ al-qalyah “plant ashes”, cf. Alkali from the same root), atomic number 19, and atomic mass 39.0983. Potassium was first isolated from potash. Elemental potassium is a soft silvery-white metallic alkali metal that oxidizes rapidly in air and is very reactive with water, generating sufficient heat to ignite the evolved hydrogen.

Potassium in nature occurs only as ionic salt. As such, it is found dissolved in seawater, and as part of many minerals. Potassium ion is necessary for the function of all living cells, and is thus present in all plant and animal tissues. It is found in especially high concentrations in plant cells, and in a mixed diet, it is most highly concentrated in fruits.

In many respects, potassium and sodium are chemically similar, although they have very different functions in organisms in general, and in animal cells in particular.

For more information about Potassium, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.