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- A Cell’s First Steps: Building A Model To Explain How Cells Grow
- New simulation study shows that atmosphere warms when pollution intensifies storms
- Acid in the brain: Scientists develops new way to look at brain function
- Gold lenses used to create gamma optics
- First investigations with the Very Large Telescope Interferometer reveal the dust torus around the black hole in a galactic nucleus
- Australian freshwater crayfish have a tooth enamel very similar to humans
- Hitting snooze on the molecular clock: Rabies evolves slower in hibernating bats
- Ancient Giant Turtle Fossil Revealed
- Finding fingerprints in sea level rise
- Using Graphene, Scientists Develop a Less Toxic Way to Rust-Proof Steel
- Systems metabolic engineering of microorganisms allows efficient production of natural and non-natural chemicals from renewable non-food biomass
| A Cell’s First Steps: Building A Model To Explain How Cells Grow Posted: 19 May 2012 05:42 AM PDT A collaboration between Lehigh University physicists and University of Miami biologists addresses an important fundamental question in basic cell biology: How do living cells figure out when and where to grow? |
| New simulation study shows that atmosphere warms when pollution intensifies storms Posted: 19 May 2012 05:22 AM PDT Pollution is warming the atmosphere through summer thunderstorm clouds, according to a computational study published May 10 in Geophysical Research Letters. How much the warming effect of these clouds offsets the cooling that other clouds provide is not yet clear. To find out, researchers need to incorporate this new-found warming into global climate models. |
| Acid in the brain: Scientists develops new way to look at brain function Posted: 19 May 2012 05:13 AM PDT University of Iowa neuroscientist John Wemmieis interested in the effect of acid in the brain (not that kind of acid!). His studies suggest that increased acidity—or low pH—in the brain is linked to panic disorders, anxiety, and depression. But his work also indicates that changes in acidity are important for normal brain activity too. |
| Gold lenses used to create gamma optics Posted: 18 May 2012 01:34 PM PDT  Scientists at Ludwig-Maximilians-Universität in Munich and the Max Planck Institute of Quantum Optics in Garching have opened up a new chapter in optics: in experiments with gamma rays at the Institut Laue-Langevin (ILL) in Grenoble they have proven that these extremely high-energy electromagnetic waves can be focused by lenses like conventional light - the researchers have thus refuted a fundamental assumption of theoretical physics that had been valid for decades. Their discovery will make a great many new applications possible in medicine and materials research. |
| Posted: 18 May 2012 12:38 PM PDT Black holes swallow everything that comes near them and are fuelled by gas and dust from their surroundings. An international research team led by Gerd Weigelt of the Max Planck Institute for Radio Astronomy in Bonn has now focused its attention on this reservoir of material. Using near-infrared interferometry, they observed the inner region of galaxy NGC 3783, which contains a black hole surrounded by a so-called “dust torus”. |
| Australian freshwater crayfish have a tooth enamel very similar to humans Posted: 18 May 2012 12:19 PM PDT Nature sometimes copies its own particularly successful developments. A team of scientists from the Max Planck Institute of Colloids and Interfaces in Potsdam and the Ben-Gurion University at Beer-Sheva in Israel has now found that the teeth of the Australian freshwater crayfish Cherax quadricarinatus are covered with an enamel amazingly similar to that of vertebrates. Both materials consist of calcium phosphate and are also very alike in terms of their microstructure. |
| Hitting snooze on the molecular clock: Rabies evolves slower in hibernating bats Posted: 18 May 2012 10:57 AM PDT The rate at which the rabies virus evolves in bats may depend heavily upon the ecological traits of its hosts, according to researchers at the University of Georgia, the U.S. Centers for Disease Control and Prevention and Katholieke Universiteit Leuven in Belgium. Their study, published May 17 in the journal PLoS Pathogens, found that the host's geographical location was the most accurate predictor of the viral rate of evolution. Rabies viruses in tropical and sub-tropical bat species evolved nearly four times faster than viral variants in bats in temperate regions. |
| Ancient Giant Turtle Fossil Revealed Posted: 18 May 2012 08:36 AM PDT Picture a turtle the size of a Smart car, with a shell large enough to double as a kiddie pool. Paleontologists from North Carolina State University have found just such a specimen – the fossilized remains of a 60-million-year-old South American giant that lived in what is now Colombia. |
| Finding fingerprints in sea level rise Posted: 18 May 2012 08:27 AM PDT It was used to help Apollo astronauts navigate in space, and has since been applied to problems as diverse as economics and weather forecasting, but Harvard scientists are now using a powerful statistical tool to not only track sea level rise over time, but to determine where the water causing the rise is coming from. |
| Using Graphene, Scientists Develop a Less Toxic Way to Rust-Proof Steel Posted: 18 May 2012 07:59 AM PDT University at Buffalo researchers are making significant progress on rust-proofing steel using a graphene-based composite that could serve as a nontoxic alternative to coatings that contain hexavalent chromium, a probable carcinogen. In the scientists' first experiments, pieces of steel coated with the high-tech varnish remained rust-free for only a few days when immersed continuously in saltwater, an environment that accelerates corrosion. |
| Posted: 18 May 2012 07:51 AM PDT In our everyday life, we use gasoline, diesel, plastics, rubbers, and numerous chemicals that are derived from fossil oil through petrochemical refinery processes. However, this is not sustainable due to the limited nature of fossil resources. Furthermore, our world is facing problems associated with climate change and other environmental problems due to the increasing use of fossil resources. One solution to address above problems is the use of renewable non-food biomass for the production of chemicals, fuels and materials through biorefineries. |
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