Daily non-political popular news in brief.

Magnetism loses under pressure

Scientists discovered that the magnetic strength of magnetite -- the most abundant magnetic mineral on Earth -- declines drastically when put under pressure. Researchers from the Carnegie Institution's Geophysical Laboratory, with colleagues at the Advanced Photon Source of Argonne National Laboratory, have found that when magnetite is subjected to pressures between 120,000 and 160,000 times atmospheric pressure its magnetic strength declines by half. They discovered that the change is due to what is called electron spin pairing.

Read more »

Keywords: magnetism, loses, pressure, lose

« Previous | Next »

Similar news on "Magnetism loses under pressure":

1. High blood pressure, chest pains speed up progression of Alzheimer's disease
   11-05-2007 · EurekAlert!
   People with Alzheimer's disease who have high blood pressure, chest pains or an irregular heartbeat may lose their memories faster than others with Alzheimer's disease, according to a study published in the Nov. 6, 2007, issue of Neurology, the medical journal of the American Academy of Neurology.
   Similar news · Read more »
   
2. How red blood cells nuke their nuclei
   02-10-2008 · EurekAlert!
   Late in their development, mammalian red blood cells lose their nuclei when a ring of actin filaments contracts and pinches off a segment of the cell that mainly contains the nucleus. Relevance: This is the first study to reveal the proteins involved as a red blood cell loses its nucleus. The researchers plan to further investigate the entire process of red blood cell formation, which may lead to insights about genetic alterations that underlie certain red blood cell disorders.
   Similar news · Read more »
   
3. Link identified between age, cardiovascular disease
   11-02-2006 · EurekAlert!
   Researchers in the Linus Pauling Institute at Oregon State University have discovered a fundamental mechanism that causes aging blood vessels to lose their elasticity -- a literal "hardening of the arteries" that is often a prelude to high blood pressure and cardiovascular disease. An understanding of this mechanism provides an important new target for both drugs and dietary changes that might help prevent or treat atherosclerosis and heart disease.
   Similar news · Read more »
   
4. Banked blood loses ability to deliver oxygen to tissues
   10-08-2007 · EurekAlert!
   Almost immediately after it is donated, human blood begins to lose a key gas that opens up blood vessels to facilitate the transfer of oxygen from red blood cells to oxygen-starved tissues.
   Similar news · Read more »
   
5. Study suggests estrogen deficiency can lead to obesity-induced high blood pressure after menopause
   08-08-2007 · EurekAlert!
   At menopause, women lose hormone protection against heart and kidney diseases, and are likely to become obese. A research team has tested the idea that estrogen deficiency in aged females may trigger the development of high blood pressure and obesity. The results of their study, using an animal model, suggest that estrogen depletion can have these effects.
   Similar news · Read more »
   
6. Greenland Ice Sheet Still Losing Mass
   09-29-2006 · ScienceDaily
   Data gathered by a pair of NASA satellites orbiting Earth show Greenland continued to lose ice mass at a significant rate through April 2006, and that the rate of loss is accelerating, according to a new University of Colorado at Boulder study.
   Similar news · Read more »
   
7. Researchers discover genetic cause for word-finding disease
   01-15-2007 · EurekAlert!
   Northwestern University researchers have discovered a genetic cause of a mysterious neurological disease in which people have trouble recalling and using words. The illness, Primary Progressive Aphasia, differs from Alzheimer's Disease in which a person's memory becomes impaired. In PPA, which can begin in the 40's and 50's, people eventually lose the ability to express themselves and understand speech. Although people lose the ability to communicate, they are still able to perform complicated tasks.
   Similar news · Read more »
   
8. MIT-led team ID's malaria-inducing protein
   05-21-2007 · Massachusetts Institute of Technology (MIT)
   An international team of researchers led by an MIT professor has demonstrated how a key protein in the malaria-inducing parasite Plasmodium falciparum infects red blood cells, causing them to lose their ability to flow through tiny blood vessels.
   Similar news · Read more »
   
9. The memories you want to forget are the hardest ones to lose
   08-15-2007 · EurekAlert!
   Painful, emotional memories that people would most like to forget may be the toughest to leave behind, especially when memories are created through visual cues, according to a new study by the University of North Carolina at Chapel Hill.
   Similar news · Read more »
   
10. Alendronate can help prevent bone fractures in many postmenopausal women
    01-22-2008 · EurekAlert!
    Giving 10mg per day of the bisphosphate drug alendronate to women after their menopause can help prevent loss of bone mass, reducing their risk of fractures, a Cochrane Review has found. This finding applies to women who have started to lose their bone mass but have no fractures (primary prevention), as well as those who have lost significant bone mass and/or have had fractures (secondary prevention).
    Similar news · Read more »