- Researchers Develop New, Less Expensive Nanolithography Technique
- Unexpected Finding Shows Climate Change Complexities in Soil
- Beliefs Drive Investors More than Preferences, Study Finds
- Lyme retreatment guidance may be flawed
- Monogamy and the Immune System
- Microbes help hyenas communicate via scent
- NASA's Dawn Prepares for Trek Toward Dwarf Planet
- How salt in the rainforest becomes clouds
- Ancient Denisovan genome reveals its secrets
- Eating (milk) chocolate may lower risk of getting a stroke
- Protein impedes microcirculation of malaria-infected red blood cells
- Researchers engineer light-activated skeletal muscle
Posted: 31 Aug 2012 07:17 AM PDT
Researchers from North Carolina State University have developed a new nanolithography technique that is less expensive than other approaches and can be used to create technologies with biomedical applications.
Posted: 31 Aug 2012 07:07 AM PDT
In a surprising finding, North Carolina State University researchers have shown that certain underground organisms thought to promote chemical interactions that make the soil a carbon sink actually play a more complex, dual role when atmospheric carbon levels rise.
Posted: 31 Aug 2012 06:58 AM PDT
If experts thought they knew anything about individual investors, it was this: their emotions lead them to sell winning stocks too soon and hold on to losers too long.
Posted: 31 Aug 2012 06:51 AM PDT
A new statistical review calls into question studies that have been taken as proof that antibiotic retreatment for chronic Lyme disease is futile. That misunderstanding has led to medical guidance that discourages retreatment and insurance coverage for it. Instead, the authors of the review suggest, the proper reading of the studies and their data is that they prove nothing.
Posted: 30 Aug 2012 12:38 PM PDT
In the foothills of the Santa Cruz Mountains two closely related species of mice share a habitat and a genetic lineage, but have very different social lives. The California mouse (Peromyscus californicus) is characterized by a lifetime of monogamy; the deer mouse (Peromyscus maniculatus) is sexually promiscuous.
Posted: 30 Aug 2012 12:32 PM PDT
Bacteria in hyenas’ scent glands may be the key controllers of communication.
The results, featured in the current issue of Scientific Reports, show a clear relationship between the diversity of hyena clans and the distinct microbial communities that reside in their scent glands, said Kevin Theis, the paper’s lead author and Michigan State University postdoctoral researcher.
Posted: 30 Aug 2012 12:23 PM PDT
NASA's Dawn spacecraft is on track to become the first probe to orbit and study two distant solar system destinations, to help scientists answer questions about the formation of our solar system. The spacecraft is scheduled to leave the giant asteroid Vesta on Sept. 4 PDT (Sept. 5 EDT) to start its two-and-a-half-year journey to the dwarf planet Ceres.
Posted: 30 Aug 2012 11:58 AM PDT
In the ecosystem of the rainforest, fungi and plants are important contributors to the development of mist and clouds. Researchers at the Max Planck Institute for Chemistry have now found out that these release salt particles to which organic molecules attach. Condensation nuclei are thereby formed, which the moisture of the rainforest condenses on forming water droplets. The discovery was made with the help of a new method using X-rays in which individual particles are microscopically and spectroscopically analysed.
Posted: 30 Aug 2012 11:53 AM PDT
The analyses of an international team of researchers led by Svante Pääbo of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, show that the genetic variation of Denisovans was extremely low, suggesting that although they were present in large parts of Asia, their population was never large for long periods of time. In addition, a comprehensive list documents the genetic changes that set apart modern humans from their archaic relatives. Some of these changes concern genes that are associated with brain function or nervous system development.
Posted: 30 Aug 2012 11:34 AM PDT
New research from the Institute of Environmental Medicine at Karolinska Institutet shows that eating a moderate amount of chocolate each week may be associated with a lower risk of stroke - regardless of the chocolate being dark or light. The findings are based on data from over 37 000 men and is published in the online issue of the scientific journal Neurology.
Posted: 30 Aug 2012 07:48 AM PDT
When the parasite responsible for malaria infects human red blood cells, it launches a 48-hour remodeling of the host cells. During the first 24 hours of this cycle, a protein called RESA undertakes the first step of renovation: enhancing the stiffness of the cell membranes.
Posted: 30 Aug 2012 07:29 AM PDT
Many robotic designs take nature as their muse: sticking to walls like geckos, swimming through water like tuna, sprinting across terrain like cheetahs. Such designs borrow properties from nature, using engineered materials and hardware to mimic animals’ behavior.
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