ScienceDaily: Latest Science News

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• Arctic Sediments Show That 20th Century Warming Is Unlike Natural Variation
• Could Drugs For Mood Disorders, Pain And Epilepsy Cause Psychiatric Disorders Later In Life?
• New Route To Nano Self-assembly Found
• DNA Replication: Messenger RNA With FLASH A Key Player
• Smallest Nanoantennas For High-speed Data Networks
• Chronic Voluntary Alcohol Consumption Impairs Neurogenesis
• Color Differences Within And Between Species Have Common Genetic Origin
• Could Some Forms Of Mental Retardation Be Treated With Drugs?
• Physicists Turn To Radio Dial For Finer Atomic Matchmaking
• Trembling Hands And Molecular Handshakes
• Fruit Fly Pest Identified In Wine Grapes
• Despite Claims, UK Did Not Gas Iraqis In The 1920s, New Research Finds
• Biofuel Displacing Food Crops May Have Bigger Carbon Impact Than Thought
• Accelerated Bone Growth May Be An Indicator Of Hypertension In Children
• Mystery Of Nanopillars Solved: Research Paves Way For New 3-D Lithography Method
• 'Difficult-to-treat Asthma' May Be Due To Difficult-to-treat Patients
• New Laryngoscope Could Make Difficult Intubations Easier
• US Patients Five Times More Likely To Spend Last Days In ICU Than Patients In England

Arctic Sediments Show That 20th Century Warming Is Unlike Natural Variation Posted: 25 Oct 2009 02:00 PM PDT The possibility that climate change might simply be a natural variation like others that have occurred throughout geologic time is dimming, according to new evidence. The research reveals that sediments retrieved by geologists from a remote Arctic lake are unlike those seen during previous warming episodes.

Could Drugs For Mood Disorders, Pain And Epilepsy Cause Psychiatric Disorders Later In Life? Posted: 25 Oct 2009 02:00 PM PDT Young animals treated with commonly-prescribed drugs develop behavioral abnormalities in adulthood say researchers. The drugs tested include those used to treat epilepsy, mood disorders and pain.

New Route To Nano Self-assembly Found Posted: 25 Oct 2009 02:00 PM PDT By adding select small molecules to mixtures of nanoparticles and polymers, researchers can direct the self-assembly of the nanoparticles into arrays of one, two and even three dimensions with no chemical modifications.

DNA Replication: Messenger RNA With FLASH A Key Player Posted: 25 Oct 2009 02:00 PM PDT A new study has identified a key player in a molecular process essential for DNA replication within cells.

Smallest Nanoantennas For High-speed Data Networks Posted: 25 Oct 2009 02:00 PM PDT More than 120 years after the discovery of the electromagnetic character of radiowaves by Heinrich Hertz, wireless data transmission dominates information technology. Higher and higher radio frequencies are applied to transmit more data. Some years ago, scientists found that light waves might also be used for radio transmission. So far, manufacture of the small antennas has required an enormous expenditure. Scientists have now succeeded in specifically and reproducibly manufacturing smallest optical nanoantennas from gold.

Chronic Voluntary Alcohol Consumption Impairs Neurogenesis Posted: 25 Oct 2009 02:00 PM PDT A new study found that chronic alcohol consumption reduces the number of new brain cells that form in the hippocampus of adolescent rhesus monkeys. This finding suggests these cells are vulnerable to alcohol and their presence may be essential for preventing alcohol dependence.

Color Differences Within And Between Species Have Common Genetic Origin Posted: 25 Oct 2009 08:00 AM PDT Spend a little time people-watching at the beach and you're bound to notice differences in the amount, thickness and color of people's body hair. Then head to the zoo and compare people to chimps, our closest living relatives. The body hair difference is even more pronounced between the two species than within our own species. Do the same genes cause both types of variation? New research shows that, at least for body color in fruit flies, the two kinds of variation have a common genetic basis.

Could Some Forms Of Mental Retardation Be Treated With Drugs? Posted: 25 Oct 2009 08:00 AM PDT Growth factors are the proteins that trigger a countless number of actions in cells. Drugs that increase or decrease certain growth factors have lead to treatments for cancer and cardiovascular diseases. Researchers say a new understanding of a growth factor implicated in some mental retardation disorders could lead to a novel treatment.

Physicists Turn To Radio Dial For Finer Atomic Matchmaking Posted: 25 Oct 2009 08:00 AM PDT Investigating mysterious data in ultracold gases of rubidium atoms, scientists have found that properly tuned radio-frequency waves can influence how much the atoms attract or repel one another, opening up new ways to control their interactions.

Trembling Hands And Molecular Handshakes Posted: 25 Oct 2009 08:00 AM PDT The heritable Fragile X tremor/ataxia syndrome is a common neurodegenerative disease. It is assumed to result from a relative lack of the protein Pur-alpha. A new study by a team in Germany provides important insights into the structure and function of this protein, which may lead to the development of a therapy.

Fruit Fly Pest Identified In Wine Grapes Posted: 25 Oct 2009 08:00 AM PDT A newly recognized pest in Oregon continues to concern fruit growers and researchers with the recent discovery of a spotted wing Drosophila fly in a sample of Willamette Valley wine grapes.

Despite Claims, UK Did Not Gas Iraqis In The 1920s, New Research Finds Posted: 25 Oct 2009 08:00 AM PDT Historians, politicians and journalists have often accused Great Britain of using chemical weapons against Iraqis just after World War I. But new research finds that no such incident ever occurred.

Biofuel Displacing Food Crops May Have Bigger Carbon Impact Than Thought Posted: 25 Oct 2009 02:00 AM PDT A report examining the impact of a global biofuels program on greenhouse gas emissions during the 21st century has found that carbon loss stemming from the displacement of food crops and pastures for biofuels crops may be twice as much as the carbon dioxide emissions from land dedicated to biofuels production.

Accelerated Bone Growth May Be An Indicator Of Hypertension In Children Posted: 25 Oct 2009 02:00 AM PDT Children whose bones are "older" than their chronological age may be at an increased risk of hypertension, according to a new study. As a result, the investigators suggest that markers of biological maturity should be evaluated in hypertensive children, and that physical activity and diet may deter the accelerated development of biological maturity.

Mystery Of Nanopillars Solved: Research Paves Way For New 3-D Lithography Method Posted: 25 Oct 2009 02:00 AM PDT Scientists have uncovered the physical mechanism by which arrays of nanoscale pillars can be grown on polymer films with very high precision, in potentially limitless patterns. This nanofluidic process could someday replace conventional lithographic patterning techniques now used to build three-dimensional nano- and microscale structures for use in optical, photonic, and biofluidic devices.

'Difficult-to-treat Asthma' May Be Due To Difficult-to-treat Patients Posted: 25 Oct 2009 02:00 AM PDT Difficult-to-treat asthma often may have more to do with patients who do not take their medication as instructed than ineffective medication, according to researchers in Northern Ireland.

New Laryngoscope Could Make Difficult Intubations Easier Posted: 25 Oct 2009 02:00 AM PDT A new tool may make it easier to place assisted breathing devices under difficult circumstances.

US Patients Five Times More Likely To Spend Last Days In ICU Than Patients In England Posted: 25 Oct 2009 02:00 AM PDT Patients who die in the hospital in the United States are almost five times as likely to have spent part of their last hospital stay in the ICU than patients in England. What's more, over the age of 85, ICU usage among terminal patients is eight times higher in the US than in England, according to new research that compared the two countries' use of intensive care services during final hospitalizations.

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