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168,097 articles from ScienceDaily

Microcapsules Act As 'Roach Motel' To Kill Harmful Bacteria

Scientists have created tiny microscopic spheres that trap and kill harmful bacteria in a manner the scientists liken to "roach motels" snaring and killing cockroaches. The research could lead to new coatings that will disinfect common surfaces, combat bioterrorism or sterilize medical devices, reducing the devices' responsibility for an estimated 1.4 million infection-related deaths each...

Old Flies Can Become Young Moms

Female flies can turn back the biological clock and extend their lifespan at the same time, biologists report. Study casts doubt on the old notion of a trade off between reproduction and longevity.

Genetic Information Advances The Breeding Of Dairy Cattle

A Finnish researcher has demonstrated the impact of two candidate genes on the protein and fat content of milk and on the overall milk yield from dairy cows. The work also involved devising a method for identifying genetic polymorphisms in a sample extracted from a bovine...

NASA And DOE Collaborate On Dark Energy Research

NASA and the U.S. Department of Energy have signed a memorandum of understanding for the implementation of the Joint Dark Energy Mission, or JDEM. The mission will feature the first space-based observatory designed specifically to understand the nature of dark energy.

Predicting The Future For Patients With Severe Traumatic Brain Injury

"How will our loved one come out of this?" After an accident that results in severe traumatic brain injury, the answer to this simple question can change everything. A new study describes the tools that are most effective at providing an objective answer to this question almost as soon as patients leave intensive...

Advanced Lung Cancer Patients See Improved, Progression-free Survival

Patients with advanced non-small cell lung cancer whose disease has progressed following chemotherapy have a higher rate of tumor shrinkage and a longer interval before cancer progression when bevacizumab is added to standard second-line erlotinib therapy, according to a study presented at the 2008 Chicago Multidisciplinary Symposium in Thoracic Oncology, sponsored by ASTRO, ASCO, IASLC and the...

FoxJ1 Helps Cilia Beat A Path To Asymmetry

Scientists have discovered how a genetic switch, known as FoxJ1, helps developing embryos tell their left from their right. While at first glance the right and left sides of our bodies are identical to each other, this symmetry is only skin-deep. Below the surface, some of our internal organs are shifted sideways -- heart and stomach to the left, liver and appendix to the...

How Is Our Left Brain Is Different From Our Right?

Scientists found that synaptic size and shape in the center of the spatial memory (i.e. hippocampus) were asymmetrical between synapses receiving input from the left and right hemisphere. Differences were found in the synaptic connections of the learning center of the brain.

Microarray Analysis Improves Prenatal Diagnosis

A "chip" or array that can quickly detect disorders such as Down syndrome or other diseases associated with chromosomal abnormalities proved an effective tool in prenatal diagnosis in a series of 300 cases at Baylor College of Medicine, according to an article in the journal Prenatal...

Can An Ant Be Employee Of The Month?

Ants specializing on one job such as snatching food from a picnic are no more efficient than "Jane-of-all-trade" ants, according to new research from the University of Arizona in Tucson. The finding casts doubt on the idea that the worldwide success of ants stems from job specialization within the...