News
-
Look on the bright side and survive longer
People who, as young adults, describe their lives using a variety of terms for positive emotions live substantially longer than those who express little positive emotion, according to a long-term study of Catholic nuns.
- Paleontology
Early Mammal’s Jaw Lost Its Groove
A tiny fossil skull found in 195-million-year-old Chinese sediments provides evidence that crucial features of mammal anatomy evolved more than 45 million years earlier than previously thought.
- Materials Science
Nanotubes form dense transistor array
Researchers have made an array of transistors out of carbon nanotubes.
- Materials Science
Future brightens for carbon nanotubes
Researchers have made a lightbulb that depends on carbon nanotubes for its glow.
- Health & Medicine
Gender bias: Stroke after heart surgery
Women are more likely than men to suffer strokes after heart surgery.
- Health & Medicine
New drug takes on intestinal cancer
Imatinib mesylate, already approved by the FDA for treating people with a form of leukemia, blocks the activity of certain enzymes that cause gastrointestinal stromal cells to replicate uncontrollably.
-
Caterpillars die rather than switch
A newly identified compound in tomatoes and other plants of the nightshade family turns hornworms into addicts that often starve rather than eat another food.
-
Soy estrogen laces paper-mill wastes
Paper-mill effluent contains an estrogen-mimicking pollutant at concentrations that may adversely affect reproduction in fish.
- Health & Medicine
Virus in transplanted hearts bodes ill
Pediatric heart-transplant recipients who acquire a viral infection in the heart fare poorly over the long term.
- Humans
San Jose hosts 2001 science competition
More than 1,200 students from almost 40 countries competed last week in San Jose for more than $3 million in prizes and scholarships at the 2001 Intel International Science and Engineering Fair.
-
Many refugees can’t flee mental ailments
Refugees interviewed in camps in Nepal exhibit post-traumatic stress disorder and other mental ailments, especially if they have survived torture in their native country.
- Astronomy
Snacking in space: Star dines on planet
Astronomers have found evidence that a star has swallowed one or more of its own planets.
