Uncategorized
- Health & Medicine
Risk Profile: C-reactive protein may presage hypertension
High concentrations of the inflammatory compound C-reactive protein may signal an elevated risk of high blood pressure.
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Worried to Death: Lifelong inhibitions hasten rodents’ deaths
In rats with a fear of novel situations, an exaggerated hormonal response to minor types of stress adds up to a shorter life than that of bold rats.
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The conclusion does not follow from the data in this article. The possibility was not ruled out that the same inborn trait that causes fear of novelty also hastens aging. A cohort of novelty-averse rats should have been left stressfree to answer this important question. Tom PaskalMontreal, Quebec
- Earth
Slowing Puberty? Pesticide may hinder development in boys
Long-term exposure to the pesticide endosulfan may delay the onset of puberty in boys.
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- Astronomy
Breach of the Shield: Magnetic links between sun and Earth last hours
Once breaches have formed in Earth's protective magnetic field, they persist for many hours, allowing charged particles from the sun to gush through and create electrical disturbances.
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Model Mice: Blood reveals signs of pancreatic cancer
Mice that develop pancreatic cancer show signs of the disease long before malignant tumors arise, just as people with this type of cancer do.
- Earth
Gemstone Geography: New technique discerns emeralds’ beginnings
Water molecules trapped inside the minuscule channels of an emerald harbor telltale signs of the gem's geographic origin.
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Genome made quickly from scratch
Scientists have synthesized a viral genome in record time.
- Astronomy
Spying a planet in star’s dusty veil
Astronomers blocked out the light of a nearby star and found hints of an orbiting planet.
- Humans
Panel turns critical eye on testosterone
Existing evidence does not justify claims that testosterone treatments can relieve or prevent age-related problems in men, a panel of medical experts has concluded.
- Astronomy
Alien stars pass close to home
Stars from an alien galaxy are raining down on our own Milky Way and passing just a few hundred light-years from Earth.
