ข่าววิทย์

Next Stop: The Fourth Dimension, With Large Hadron Collider Experiments

ScienceDaily - 0 sec ago
How did the universe come to be? What is it made of? What is mass? Can science prove that there are other dimensions? We may have answers soon. On September 10, 2008, the new CERN Large Hadron Collider (LHC) is scheduled to turn on. The first high-energy collisions are expected to take place in October 2008. Scientists are calling it the largest experiment in the world.
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Changes To Embryonic Stem Cells Caused By Down Syndrome Revealed

ScienceDaily - 0 sec ago
Scientists investigating the mechanisms of Down syndrome have revealed the earliest developmental changes in embryonic stem cells caused by an extra copy of human chromosome 21 -- the aberrant inheritance of which results in the condition.
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Tiny Gold Clusters Are Top-notch Catalysts

ScienceDaily - 0 sec ago
Using a pair of scanning transmission electron microscopy instruments for which spherical aberration is corrected, researchers have for the first time achieved state-of-the-art resolution of gold nanocrystals absorbed onto iron oxide surfaces that can catalyzed a variety of reactions, including the oxidation of carbon monoxide to carbon dioxide.
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Stem Cell Transplantation Benefits Mice With Childhood Motor Neuron Disease

ScienceDaily - 0 sec ago
The motor neuron disease spinal muscular atrophy (SMA) is the second most common genetic disorder leading to death in childhood. There is currently no cure for SMA, but some clinicians and researchers consider stem cell transplantation as a potential therapeutic strategy. And now, work using a mouse model of SMA suggests that spinal cord neural stem cells might be a possible treatment for individuals with SMA.
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Changes In Urine Could Lead To BSE Test For Live Animals

ScienceDaily - 0 sec ago
Researchers have demonstrated that protein levels in urine samples can indicate both the presence and progress of Bovine Spongiform Encephalopathy disease in cattle. The scientists hope that their discovery might lead to the development of a urine-based test that could prevent the precautionary slaughter of many animals as now occurs when the disease is detected.
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Functional Food – Delicious And Healthy

ScienceDaily - 0 sec ago
Linseed is said to protect against cancer – but not everybody likes the taste. Researchers have now isolated the valuable components of the flax seeds. Incorporated in bread, cakes or dressings, they support the human organism without leaving an unpleasant aftertaste.
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Smoke Smudges Mexico City's Air, Chemists Identify Sources

ScienceDaily - 1 hour 13 min ago
Mexico City once topped lists of places with the worst air pollution in the world. Although efforts to curb emissions have improved the situation, tiny particles called aerosols still clog the air. Now, atmospheric scientists have sorted through the pall that hangs over the city to precisely identify aerosols that make up the haze and chart daily patterns of changes to the mix.
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Cholesterol Drugs Lower Risk Of Stroke For Elderly, Too

ScienceDaily - 1 hour 13 min ago
Elderly people who take a cholesterol drug after a stroke or mini-stroke lower their risk of having another stroke just as much as younger people in the same situation, according to new research.
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As Easy As 1, 2, 3: Number Sense Correlates With Test Scores

ScienceDaily - 1 hour 13 min ago
Knowing how precisely a high school freshman can estimate the number of objects in a group gives you a good idea how well he has done in math as far back as kindergarten.
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Role Of Aerosols In Climate Change Examined

ScienceDaily - 1 hour 13 min ago
It appears that aerosol effects on clouds can induce large changes in precipitation patterns, which in turn may change not only regional water resources, but also may change the regional and global circulation systems that constitute the Earth's climate. A group of scientists have proposed a new framework to account more accurately for the effects of aerosols on precipitation in climate models.
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New 'Trick' Allows HIV To Overcome A Barrier To Infection

ScienceDaily - 1 hour 13 min ago
Researchers have discovered a new 'trick' that allows HIV to overtake resting T cells that are normally highly resistant to HIV infection -- the binding of the virus to the surface of those cells sends a signal that breaks down the cells' internal skeleton, a structure that otherwise may present a significant barrier to infection.
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Child Safety Seats And Lap-and-shoulder Belts Effective In Preventing Serious Injury, Study Suggests

ScienceDaily - 1 hour 13 min ago
Study reveals that lap-and-shoulder seat belts perform as well as child safety seats in preventing serious injury. For young children, all states currently require the use of child safety seats, and the minimum age and weight requirements to graduate to seat belts has been increasing over time. A new study reveals that lap-and-shoulder seat belts perform as well as child safety seats in preventing serious injury.
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Global forests

BBC News | Science/Nature - 3 hours 6 min ago
Guyana's president on forests' role to curb climate shift
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Hugging benefits fractious chimps

BBC News | Science/Nature - 3 hours 11 min ago
A new study provides the first evidence that consolation in primates, such as hugging and stroking, can reduce stress levels after a fight.
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Frog find

BBC News | Science/Nature - 3 hours 25 min ago
Uncovering the rare red-eyed stream frog in Costa Rica
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Golden Nanorods for Medical Applications

PhysOrg.com - 3 hours 43 min ago
(PhysOrg.com) -- Gold nanoparticles are under consideration for a number of biomedical applications, such as tumor treatment. A German-American research team at Carnegie Mellon University in Pittsburgh, Hunter College in New York, and the RWTH Aachen has now developed a new method for the production of nanoscopic gold rods. In contrast to previous methods, they have achieved this without the use of cytotoxic additives. As they report in the journal Angewandte Chemie, the synthesis is not carried out in water, but in an ionic liquid, a “liquid salt”.
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End is nigh

BBC News | Science/Nature - 4 hours 1 min ago
Why are people so fond of predicting the world's end?
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If you want a date, don't beat about the bush

BBC News | Science/Nature - 4 hours 4 min ago
Telling someone you fancy 'I really like you' could make him or her find you more attractive, research suggests.
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You Can Be Replaced: Immune Cells Compensate For Defective DNA Repair Factor

ScienceDaily - 4 hours 13 min ago
A new mouse model has provided some surprising insight into XLF, a molecule that helps to repair lethal DNA damage. The research suggests that although XLF shares many properties with well known DNA repair factors, certain cells of the immune system possess an unexpected compensatory mechanism that that can take over for nonfunctional XLF.
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Trichoplax Genome Sequenced: 'Rosetta Stone' For Understanding Evolution

ScienceDaily - 4 hours 13 min ago
Molecular and evolutionary biologists have produced the full genome sequence of Trichoplax, one of nature's most primitive multicellular organisms, providing a new insight into the evolution of all higher animals.
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