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Εμφάνιση αναρτήσεων με ετικέτα english. Εμφάνιση όλων των αναρτήσεων

Δευτέρα 18 Μαρτίου 2013

Elite Athletes Also Excel at Some Cognitive Tasks

New research suggests that elite athletes -- Olympic medalists in volleyball, for example -- perform better than the rest of us in yet another way. These athletes excel not only in their sport of choice but also in how fast their brains take in and respond to new information -- cognitive abilities that are important on and off the court.

Human Microbe Study Provides Insight Into Health, Disease

Microbes from the human mouth are telling Oak Ridge National Laboratory scientists something about periodontitis and more after they cracked the genetic code of bacteria linked to the condition.

The finding, published in Proceedings of the National Academy of Sciences, profiles the SR1 bacteria, a group of microbes present in many environments, ranging from the mouth to deep within Earth, that have never been cultivated in the laboratory. Human oral SR1 bacteria are elevated in periodontitis, a disease marked by inflammation and infection of the ligaments and bones that support the teeth.

Breakthrough in Electricity Storage: New Large and Powerful Redox Flow Battery

More and more electricity is being generated from intermittent sources of power, such as solar and wind energy. Powerful electric energy storage devices are necessary to level out corresponding irregularities in the power supply. Fraunhofer scientists have recently made an important breakthrough with their development of a redox flow battery that reaches stack power up to 25 kW, with a cell size of 0.5 square meters. This is eight times larger than the previous A4-sized systems.

Astrocyte Signaling Sheds Light On Stroke Research

New research published in The Journal of Neuroscience suggests that modifying signals sent by astrocytes, our star-shaped brain cells, may help to limit the spread of damage after an ischemic brain stroke. The study in mice, by neuroscientists at Tufts University School of Medicine, determined that astrocytes play a critical role in the spread of damage following stroke.

Σάββατο 16 Μαρτίου 2013

New Beautifully Colored Long-Horned Beetle from Yunnan, China

The beetle family Cerambycidae, also known as long-horned beetles or longicorns, is characterized by emblematic extremely long antennae, which are usually longer than the total body length of the animal. The family is rather rich in diversity with more than 20 000 species known, distributed worldwide.

Some representatives of these bizarre-shaped beetles, are also known as serious pests with their wood-feeding larvae causing extensive damage to living trees or untreated lumber. The beetles from this family are mainly associated with leaf litter habitats, where the specimens in this study were also collected.

How Can We Stlil Raed Words Wehn Teh Lettres Are Jmbuled Up?

Researchers in the UK have taken an important step towards understanding how the human brain 'decodes' letters on a page to read a word. The work, funded by the Economic and Social Research Council (ESRC), will help psychologists unravel the subtle thinking mechanisms involved in reading, and could provide solutions for helping people who find it difficult to read, for example in conditions such as dyslexia.


In order to read successfully, readers need not only to identify the letters in words, but also to accurately code the positions of those letters, so that they can distinguish words like CAT and ACT. At the same time, however, it's clear that raeders can dael wtih wodrs in wihch not all teh leettrs aer in thier corerct psotiions.

Swarm Intelligence: New Collective Properties of Swarm Dynamics Uncovered

A new study of animal swarms uncovers some new features of their collective behaviour when overcrowding sets in.

Swarming is the spontaneous organised motion of a large number of individuals. It is observed at all scales, from bacterial colonies, slime moulds and groups of insects to shoals of fish, flocks of birds and animal herds. Now physicists Maksym Romenskyy and Vladimir Lobaskin from University College Dublin, Ireland, have uncovered new collective properties of swarm dynamics in a study just published in EPJ B.