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Science News Archive 2004 - Page 29


Page 29 of 135

Aiding decision making for Baby Charlotte and Baby Luke

The Lancet editorial emphasizes the need for a more compassionate approach to end-of-life medical decisions, particularly in cases where parents and doctors disagree. The article advocates for arbitration as an alternative to court proceedings, citing its potential to resolve conflicts in a more constructive manner.

SourceThe Lancet_DELETED·JournalThe Lancet·DateOct 21, 2004

Researchers monitor progression of Parkinson's disease by studying molecular changes in brain

A study by Johannes Schwarz and colleagues tracked molecular changes in brains of Parkinson's patients over 7.5 years using SPECT to measure dopamine transporter binding, revealing a single exponential decline rather than linear loss. This advancement enables the development of individualized treatment for advanced Parkinson's patients.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateOct 21, 2004

Clues to improving TB treatment

Researchers have discovered a way to disable TB protein when it binds to certain molecules, making bacteria more sensitive to treatment by ethionamide. This finding suggests that combining ethionamide with benzylacetone could reduce the dosage of potent antibacterial compounds and improve TB treatment.

SourceCell Press·JournalMolecular Cell·DateOct 21, 2004

New fiber optic sensors increase range

Researchers at Virginia Tech have developed new fiber optic sensors using UV-induced intrinsic Fabry-Perot interferometers, increasing the range and enabling real-time monitoring of large areas. The technology has the potential to create a nationwide network of sensors for infrastructure monitoring with improved multiplexing capability.

Better analyses of wind, damage models would help insurers anticipate hurricane costs

Researchers analyzed 324 combinations of public and private wind speed and damage models, finding vastly different results due to varying inputs. Creating a centralized database of wind speeds and requiring insurance companies to divulge more information about damage claims could help improve the accuracy of these models.

SourceUniversity of Central Florida·JournalBulletin of the American Meteorological Society·DateOct 20, 2004

Incentives for US farmers reduce water waste

A report by Cornell University's David Pimentel and his students highlights the need to conserve water in US agriculture. The study found that irrigation practices can require up to three times more fossil energy than rain-fed crops, highlighting the importance of sustainable water management.

SourceCornell University·JournalBioScience·DateOct 20, 2004

Babies born after surgery on eggs

Researchers use nuclear transfer to add women's own mitochondria to eggs, preventing inherited diseases caused by mitochondrial mutations. The technique involves adding the woman's own mitochondria to her eggs, reducing controversy and potential health risks compared to using donor mitochondria.

Large-scale forces shape local ocean life, global study shows

Researchers found that species diversity in local areas is directly proportional to species diversity in the region, highlighting the importance of regional forces in shaping biodiversity. Latitude also plays a significant role in local species richness, with diverse regions supporting more species.

SourceBrown University·JournalProceedings of the National Academy of Sciences·DateOct 20, 2004

Other highlights in the October 20 JNCI

A new study found that high birth weight is associated with an increased risk of childhood acute lymphoblastic leukemia (ALL) but not acute myeloid leukemia (AML). Researchers used data from health registers in four Nordic countries to conduct a case-control study involving over 2,000 children with ALL or AML and their siblings. They a...

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateOct 19, 2004

Ductal lavage may not detect breast cancer

A pilot study found that ductal lavage detected only half of the cancers in breasts with known cancer. The procedure's effectiveness is limited by poor agreement between cytologic analysis and microscopic results. Mammography and physical examination remain the most effective methods of early detection.

SourceNorthwestern Memorial HealthCare·JournalJNCI Journal of the National Cancer Institute·DateOct 19, 2004

When good metals go bad

Researchers will model the behavior of individual atoms to gain a better understanding of stress corrosion cracking in metals. The goal is to prevent damage and create more corrosion-resistant materials, leading to safer structures and potentially even improved comfort for travelers.