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Science News Archive 2004 - Page 42


Page 42 of 135

Wastewater could treat itself, power city

Researchers at U of T found that municipal wastewater contains enough organic material to generate significant amounts of electricity. By using anaerobic digestion instead of aerobic treatment, wastewater treatment plants could produce enough electricity for their own operations and potentially export excess energy to the grid.

SourceUniversity of Toronto·JournalJournal of Energy Engineering·DateSep 20, 2004

Obese trauma patients more likely to die of their injuries

The study found that obese trauma patients were 6 times more likely to die from their injuries compared to non-obese patients. The researchers also discovered that the obese group had a higher incidence of multiple organ failure, with 13% experiencing this complication compared to 3% in the non-obese group.

SourceJAMA Network·JournalArchives of Surgery·DateSep 20, 2004

Prion propagation: Avoiding the toxic oligomer

Researchers found that amyloid growth can occur independently of oligomers in yeast prion protein Sup35. The study suggests that creating conditions favoring fiber growth while inhibiting oligomer formation might limit the toxic effects of amyloid plaques.

SourcePLOS·JournalPLOS Biology·DateSep 20, 2004

Intravenous line placement for minor ear surgery in children appears to offer no added benefit

A recent study found that IV access does not provide a significant advantage for healthy children undergoing minor ear surgery. Children without IV access experienced reduced pain requirements and shorter hospital stays. Meanwhile, parents whose children did not receive IV access reported higher satisfaction rates with the procedure.

SourceJAMA Network·JournalArchives of Otolaryngology - Head and Neck Surgery·DateSep 20, 2004

More frequent monitoring advised for people with diabetes

The study suggests that monitoring glycated hemoglobin levels can help identify individuals at increased risk of developing cardiovascular disease. Researchers found a significant association between elevated glycated hemoglobin levels and increased risk of large-vessel cardiovascular disease among people with type II diabetes.

SourceJohns Hopkins Medicine·JournalAnnals of Internal Medicine·DateSep 20, 2004

Binocular rivalry: Fulfilling visual expectations

A recent study using binocular rivalry demonstrates the importance of feedback in interpreting visual images. The experimenters found that once a walking figure is recognized, it can cause dominance of signals from one eye and suppression of signals from the other.

SourceCell Press·JournalCurrent Biology·DateSep 20, 2004

Fractures mean broken lives in developing world: Study

A study by Dr. Massey Beveridge highlights the importance of orthopedic care in developing countries, where road traffic injuries and falls are major causes of disease burden among children. With only 400 surgeons serving 200 million people, access to simple surgical and obstetrical procedures could prevent up to 10% of all deaths.

SourceUniversity of Toronto·JournalJournal of Bone and Joint Surgery·DateSep 20, 2004

Stimulating the production of utrophin protects muscular dystrophy mice from muscle wasting

In a breakthrough study, scientists discovered that stimulating the production of utrophin improves muscle function and quality in mice with muscular dystrophy. The research uses a small molecule to turn on utrophin production, bypassing the need for gene therapy. Utrophin levels increased by threefold, leading to improved muscle tissu...

SourceUniversity of Pennsylvania School of Medicine·JournalProceedings of the National Academy of Sciences·DateSep 20, 2004

Key stimulator of colorectal cancer identified

Researchers found that PGE2 activates PPARd through a signaling pathway promoting cell survival and polyp formation. This effect was not observed in mice lacking PPARd, highlighting the role of PPARd as a critical downstream mediator in PGE2-stimulated colorectal tumor growth.

SourceCell Press·JournalCancer Cell·DateSep 20, 2004

Economy of movement

Researchers Konrad Körding and colleagues used utility functions, commonly used in economics, to analyze motor control. They found a surprising amount of agreement on preferred movements and a counterintuitive result that longer resistance was preferred over stronger resistance.

SourcePLOS·JournalPLOS Biology·DateSep 20, 2004

Genes expose secrets of sex on the side

Researchers at the University of Arizona have discovered new insights into ancient mating and migration patterns in humans using genetic data. The study found that men's genes traveled farther than women's, contradicting previous assumptions about patrilocality, a common marriage practice.

SourceUniversity of Arizona·JournalNature Genetics·DateSep 19, 2004

Chemical genetics identifies SARS inhibitors

Chemical genetics was used to identify novel small-molecule inhibitors of severe acute respiratory syndrome-associated coronavirus. The study revealed four compounds that effectively inhibited the replication of the virus, providing new hope for the treatment of SARS.

SourceCell Press·JournalChemistry & Biology·DateSep 17, 2004

New technique for thyroid cancer therapy eliminates many side effects

Researchers in The Netherlands and Belgium developed a new technique that uses genetically engineered rhTSH to stimulate thyroid cancer cells to absorb radioactive iodine, avoiding hypothyroidism and increasing safety. This approach may allow higher doses of radioiodine to be used when needed, improving treatment efficacy.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateSep 17, 2004