 Tipping plant growth
 19.12.2011 19:50  11 views  0 comments
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The growth of multicellular organisms is fueled not only by cell division but also by cell growth. Normally cells enlarge all over the surface. However, in many organisms, there are also specialized cells that grow only at their tip. How the necessary materials are delivered to the growing tip, is largely unknown. A new study now suggests that tip growth is not mediated by targeted trafficking to the growing site of the cell surface but rather depends on a specific recycling pathway. Read more »
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Data-driven tools cast geographical patterns of rainfall extremes in new light
19.12.2011 17:22 6 views 0 comments
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Using statistical analysis methods to examine rainfall extremes in India, a team of researchers has made a discovery that resolves an ongoing debate and offers new insights. Read more »
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New kind of metal in the deep Earth: Iron oxide undergoes transition under intense pressures and temperatures
19.12.2011 17:22 8 views 0 comments
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The intense pressures and temperatures in Earth's deep interior squeeze atoms and electrons so close they interact differently. New experiments and supercomputer computations have revealed that iron oxide undergoes a new kind of transition under deep Earth conditions. It is a component of the second most abundant mineral at Earth's lower mantle, ferropericlase. The finding could alter our understanding of deep Earth dynamics and the behavior of the protective magnetic field, which shields our planet. Read more »
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Gender bias of prospective parents revealed
19.12.2011 17:22 14 views 0 comments
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A new study has found that when people think about having children, men want boys and women want girls. Read more »
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Towards artificial photosynthesis for solar hydrogen generation: Algal protein gives boost to electrochemical water splitting
19.12.2011 17:20 3 views 0 comments
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Water splitting in photo-electrochemical cells to yield hydrogen is a promising way to sustainable fuels. Scientists have now made major progress in developing highly efficient electrodes – made of an algal protein, thus mimicking a central step in natural photosynthesis. Read more »
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Data on biodiversity at risk of being lost
19.12.2011 16:22 2 views 0 comments
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A new project is setting out to rescue biodiversity data at risk of being lost, because they are not integrated in institutional databases, are kept in outdated digital storage systems, or are not properly documented. The project provides a good example for a GBIF recommendation to establish hosting centers for biodiversity data. Read more »
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Chemicals and biofuel from wood biomass
19.12.2011 16:22 3 views 0 comments
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A new method makes it possible to use microbes to produce butanol suitable for biofuel and other industrial chemicals from wood biomass. Butanol is particularly suited as a transport fuel because it is not water soluble and has higher energy content than ethanol. Read more »
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Living 'neon signs' composed of millions of glowing bacteria
19.12.2011 16:22 2 views 0 comments
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In an example of life imitating art, biologists and bioengineers have created a living neon sign composed of millions of bacterial cells that periodically fluoresce in unison like blinking light bulbs. Read more »
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Ultra-compact dwarf galaxies are bright star clusters
19.12.2011 16:20 3 views 0 comments
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A new statistical study sheds light on the so-called 'ultra-compact dwarf galaxies' (UCDs). A team of astronomers has investigated how many of these UCDs exist in nearby galaxy clusters and groups. They show that the properties of UCDs match those of bright star clusters. Read more »
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Plant-eating dinosaur discovered in Antarctica
19.12.2011 16:20 2 views 0 comments
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For the first time, the presence of large bodied herbivorous dinosaurs in Antarctica has been recorded. Until now, remains of sauropoda had been recovered from all continental landmasses, except Antarctica. The identification of the remains of the sauropod dinosaur suggests that advanced titanosaurs achieved a global distribution at least by the Late Cretaceous. Read more »
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What are the prospects for sustaining high-quality groundwater?
19.12.2011 16:20 2 views 0 comments
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New research has looked at nitrate transport from agricultural land to water in the Thames basin in the UK. Read more »
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Sensational bird discovery in China
19.12.2011 16:18 2 views 0 comments
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In June 2011, a team of Chinese and Swedish researchers rediscovered the breeding area for the poorly known Blackthroat Luscinia obscura, in the Qinling mountains, Shaanxi province, north central China. Read more »
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First aid after tick bites
19.12.2011 16:18 3 views 0 comments
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They come out in the spring, and each year they spread further – the ticks. Thirty percent of them transmit borrelia pathogens, the causative agent of Lyme borreliosis that can damage joints and organs. The disease often goes undetected. In the future, a new type of gel is intended to prevent an infection – if applied after a tick bite. Read more »
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Tissue structure delays cancer development
19.12.2011 16:18 3 views 0 comments
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Cancer growth normally follows a lengthy period of development. Over the course of time, genetic mutations often accumulate in cells, leading first to pre-cancerous conditions and ultimately to tumor growth. Using a mathematical model, scientists have now shown that spatial tissue structure, such as that found in the colon, slows down the accumulation of genetic mutations, thereby delaying the onset of cancer. Read more »
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Climate change may bring big ecosystem shifts, NASA says
19.12.2011 4:13 2 views 0 comments
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By 2100, global climate change will modify plant communities covering almost half of Earth's land surface and will drive the conversion of nearly 40 percent of land-based ecosystems from one major ecological community type -- such as forest, grassland or tundra -- toward another, according to a new NASA and university computer modeling study. Read more »
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Immunological defense mechanism leaves malaria patients vulnerable to deadly infection
18.12.2011 21:02 4 views 0 comments
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The link between malaria and Salmonella infections has been explained for the first time, opening the way to more effective treatments. Read more »
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Can science predict a hit song?
17.12.2011 5:46 2 views 0 comments
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New research by academics has looked at whether a song can be predicted to be a "hit." Read more »
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Researchers demonstrate new DNA detection technique
16.12.2011 23:52 2 views 0 comments
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Researchers have demonstrated a novel DNA detection method that could prove suitable for many real-world applications. Read more »
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Childhood cancer drugs cure now, may cause problems later, research shows
16.12.2011 23:52 2 views 0 comments
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Will a drug used to treat childhood acute lymphoblastic leukemia and other pediatric cancers cause heart problems later in life? A professor of pharmaceutical sciences, who sees his work as a bridge between research and clinical practice, has focused recent efforts on trying to answer this question. Read more »
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Cause of rare disease discovered
16.12.2011 23:44 3 views 0 comments
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Scientists have identified the gene that causes a rare childhood neurological disorder called PKD/IC, or "paroxysmal kinesigenic dyskinesia with infantile convulsions," a cause of epilepsy in babies and movement disorders in older children. Read more »
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