Save
Email
Print
Share
RSSBrowse News Stories
491 to 500 of 16,173 stories
view headlines only
-
Coldness Triggers Northward Flight in Monarch Butterflies: Migration Cycle May Be Vulnerable to Global Climate Change
February 21, 2013 — Each fall millions of monarch butterflies migrate south in order to escape frigid temperatures, traveling up to 2,000 miles to an overwintering site in a specific grove of fir trees in central ... > full story -
Aspirin and Omega-3 Fatty Acids Work Together to Fight Inflammation
February 21, 2013 — Experts tout the health benefits of low-dose aspirin and omega-3 fatty acids but the detailed mechanisms involved in their effects are not fully known. Now researchers show that aspirin helps trigger ... > full story -
Faraday Cup Critical Part of Audacious Mission to the Sun
February 21, 2013 — A critical instrument on a mission to the sun is being tested. The flight's experiments could answer the question: How can the sun be hot at its core yet stay relatively cool at its surface, while at ... > full story -
Antibacterial Protein's Molecular Workings Revealed
February 21, 2013 — Investigators report new insights to the workings of calprotectin, an immune system protein that "starves" bacterial pathogens of the metal nutrients they require. The findings, which include a ... > full story -
Mercury May Have Harbored an Ancient Magma Ocean: Massive Lava Flows May Have Given Rise to Two Distinct Rock Types
February 21, 2013 — By analyzing Mercury's rocky surface, scientists have been able to partially reconstruct the planet's history over billions of ... > full story -
Scientists Unveil Secrets of Important Natural Antibiotic
February 21, 2013 — An international team of scientists has discovered how an important natural antibiotic called dermcidin, produced by our skin when we sweat, is a highly efficient tool to fight tuberculosis germs and ... > full story -
Explosives Vapor Detection Technology: The New 'Sniff Test'
February 21, 2013 — A quick, accurate and highly sensitive process to reliably detect minute traces of explosives on luggage, cargo or traveling passengers has been demonstrated. The vapor detection technology ... > full story -
Disruption of Circadian Clock Linked to Obesity, Diabetes and Heart Attacks
February 21, 2013 — Disruption in the body's circadian rhythm can lead not only to obesity, but can also increase the risk of diabetes and heart disease. That is the conclusion of the first study to show definitively ... > full story -
When Water Speaks: Solvents Make Catalysts More Efficient
February 21, 2013 — Why certain catalyst materials work more efficiently when they are surrounded by water instead of a gas phase is unclear. Chemists have now gleaned some initial answers from computer simulations. ... > full story -
Organic Tomatoes Accumulate More Vitamin C, Sugars Than Conventionally Grown Fruit
February 20, 2013 — Tomatoes grown on organic farms accumulate higher concentrations of sugars, vitamin C and compounds associated with oxidative stress compared to those grown on conventional farms, according to new ... > full story
Search ScienceDaily
Number of stories in archives: 137,221
more 
