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Science News Archive July 2005 - Page 11


Page 11 of 13

$100 million for medical research

The Australian Government has allocated $100 million for medical research, funding universities and research institutes across the country. This investment aims to enhance health and economic outcomes, with a focus on cancer, heart disease, and other key areas of research.

How a baby's nose knows Mom's scent

Newborn rats' brains show decreased NMDA receptor activity in olfactory-deprived side, leading to increased neuronal activation and saliency of early odors. This critical period affects olfactory development and learning.

SourceCell Press·JournalNeuron·DateJul 6, 2005

Obese older women may be more prone to frailty

A recent study by the Women's Health and Aging Studies group found that obese older women are more likely to experience pre-frailty and frailty. The research also showed a strong association between frailty and conditions such as diabetes, congestive heart failure, and osteoarthritis.

SourceBlackwell Publishing Ltd.·JournalJournal of the American Geriatrics Society·DateJul 6, 2005

Cut global warming by becoming vegetarian

A study suggests that abandoning livestock can significantly reduce global warming, with animal agriculture emitting 21% of all human-caused carbon dioxide. This shift in diet would have no adverse effects on health and could potentially meet Kyoto treaty targets for reducing emissions.

SourceIOP Publishing·JournalPhysics World·DateJul 6, 2005

Molecular trigger for Huntington's disease found

A study published in Neuron found that the abnormal HD protein selectively binds to and increases the level of p53 in cells, leading to increased cell death and mitochondrial dysfunction. This overactivation also causes behavioral abnormalities in mice engineered to have HD.

SourceCell Press·JournalNeuron·DateJul 6, 2005

The myth of the medical malpractice claims crisis

Researchers analyzed a comprehensive database of insured closed claims, revealing moderate changes and weak connections between claims-related costs and premium fluctuations. The study aims to inform reforms addressing real shortcomings in the malpractice litigation and claims payment systems.

SourceBlackwell Publishing Ltd.·JournalJournal of Empirical Legal Studies·DateJul 6, 2005

Using chemistry for electronics and vice versa

Researchers at Northwestern University have developed a custom-built scanning tunneling microscope to image individual organic molecules on silicon, refining design constraints for molecular electronic devices. The study has also provided insight into surface chemistry, with potential applications in sensing, catalysis, and lubrication.

SourceNorthwestern University·JournalProceedings of the National Academy of Sciences·DateJul 6, 2005

Space shuttle Columbia's last flight formed clouds over Antarctica

The space shuttle Columbia's exhaust plume caused a significant increase in polar mesospheric cloud activity over Antarctica, forcing scientists to rethink their role in monitoring global climate change. The clouds formed at an altitude of about 52 miles due to the high concentrations of water vapor released into the atmosphere.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalGeophysical Research Letters·DateJul 6, 2005

Largest study to date reveals baseline findings for flexible sigmoidoscopy

The largest study to date provides valuable insights into flexible sigmoidoscopy screening among 154,942 participants aged 55-74. Findings show that women are more likely to decline FSG than men, while non-acceptance increases with age in women. The rate of cancer detected was 2.9 per 1,000 individuals screened.

SourceUniversity of Pittsburgh Medical Center·JournalJNCI Journal of the National Cancer Institute·DateJul 5, 2005

Dieting linked to increased wealth, study finds

A new study by Ohio State University found that dieting is linked to increased wealth, particularly among white women, but not as strongly among black men or white men. The study analyzed data from over 7,300 people and found that those who lost large amounts of weight experienced more dramatic changes in wealth.

SourceOhio State University·JournalEconomics & Human Biology·DateJul 5, 2005

Ethanol and biodiesel from crops not worth the energy

A study by Cornell University researchers found that producing ethanol and biodiesel from plant biomass requires more energy than the fuel produced, leading to significant fossil energy input. The use of these fuels contributes to air, water, and soil pollution, as well as global warming.

SourceCornell University·JournalNatural Resources Research·DateJul 5, 2005

Turn up da noise

Researchers found that adding noise to weak vibrations increased the ability of participants to detect the frequency of the original signal. This effect could be useful in designing prosthetics for the elderly to prevent painful falls and improve balance control.

SourceAssociation for Psychological Science·JournalPsychological Science·DateJul 5, 2005

Other highlights in the July 6 JNCI

A new study found long-duration regular use of aspirin or NSAIDs may lower prostate cancer risk by 18%. Gene variants associated with melanoma risk were also identified in a Mediterranean population study, while another study found no link between gene mutations and response to bevacizumab

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateJul 5, 2005

University of Oregon chemists discover new way to fix nitrogen

Researchers have successfully synthesized ammonia from nitrogen using a simple compound of iron and hydrogen in solution, marking a significant step toward achieving one of chemistry's coveted goals. This breakthrough could lead to more efficient and sustainable production of ammonia, a vital fertilizer for global food supply.

SourceUniversity of Oregon·JournalJournal of the American Chemical Society·DateJul 5, 2005

Canadian researchers call for more angiograms

A study led by Dr. Michelle Graham highlights the need for higher rates of cardiac catheterization testing in Alberta and Canada. The research shows that many patients with high-risk blockages remain undetected, emphasizing the importance of increasing angiogram prescriptions to save lives.

SourceUniversity of Alberta·JournalCanadian Medical Association Journal·DateJul 5, 2005

Brain function in schizophrenia can improve with support, holds promise for cognitive rehabilitation

A new study from Washington University in St. Louis shows that people with schizophrenia can remember things just as well as healthy subjects with proper cues and memory aids. The research suggests a new way to understand the cognitive problems underlying schizophrenia, offering hope for more effective cognitive rehabilitation programs.

SourceWashington University in St. Louis·JournalBiological Psychiatry·DateJul 5, 2005

Quantum cryptography

Researchers at Perimeter Institute outline a new aspect of Quantum Cryptography, improving the security of data transmission. The study demonstrates enhanced capabilities in quantum key distribution, paving the way for widespread adoption in secure communication networks.

SourcePerimeter Institute for Theoretical Physics·JournalPhysical Review Letters·DateJul 5, 2005

Nutritional info helps teens make better choices

Researchers found that providing nutrition information at point-of-selection increased sales of lower-fat and calorie foods. Students opted for healthier options, such as plain cheese pizza instead of pepperoni, and chose dishes with fewer calories but similar fat content.