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Science News Archive October 2002 - Page 8


Page 8 of 10

Researchers elucidate machinery of major anti-cancer target

A team of researchers from Duke University has made significant breakthroughs in understanding the mechanism of FTase, a key player in cancer development. The study revealed that FTase doesn't release its product until another substrate molecule arrives, suggesting a new role for the enzyme beyond molecular seamstressing.

SourceDuke University·JournalNature·DateOct 9, 2002

New avenue of HIV damage found

Researchers have found a new avenue of HIV damage that affects the structure of CD4 T cells, making it impossible for them to function normally. This discovery may lead to improved disease staging and therapy, as therapies targeting inflammation and scar tissue accumulation could enhance current antiviral treatment.

SourceUniversity of Minnesota·JournalJournal of Clinical Investigation·DateOct 9, 2002

Brain anticipates events to learn routines

Researchers at Baylor College of Medicine trained macaque monkeys to recognize changes in a display screen, rewarding them with juice for correct responses. The study found that neurons in the visual cortex increased activity when an event was likely to occur, allowing primates to develop expectations and prepare accordingly.

SourceBaylor College of Medicine·JournalNature·DateOct 9, 2002

Call me Ishmael

The Navy has built an Air-Sea Interaction Tower to measure atmospheric and ocean conditions, including temperature, humidity, and wave height. The tower will provide better weather forecasts, enabling the avoidance of storms and saving lives.

Visceral reality

The Navy is using immersive simulation training, known as 'visceral reality,' to challenge fresh recruits through realistic and intense scenarios. This new approach aims to better equip sailors to deal with combat situations, providing a more effective training evolution.

'Glowing' technique could detect river pollution

Researchers from Newcastle University successfully classified 70% of River Ouseburn water samples by measuring natural fluorescence, which could aid in detecting organic pollutants. The 'glowing' technique uses spectrophotometry to fingerprint dissolved organic matter in rivers.

SourceNewcastle University·JournalHydrological Processes·DateOct 8, 2002

Airport noise impairs long-term memory and reading

A study published in Psychological Science found that German children exposed to airport noise showed significant declines in reading and memory abilities. However, these effects were reversible once the local airport closed, indicating that exposure to chronic noise can have serious health and learning impacts on children.

SourceCornell University·JournalPsychological Science·DateOct 7, 2002

New breast cancer gene discovered

Researchers at Cold Spring Harbor Laboratory have discovered a new breast cancer gene called DBC2, which is associated with sporadic breast cancer. The study shows that the Dbc2 protein kills cancer cells or stops them from growing, making it a promising target for treatment.

SourceCold Spring Harbor Laboratory·JournalProceedings of the National Academy of Sciences·DateOct 7, 2002

Foot pressure device may stamp out muscle loss

Researchers developed a mechanical system that stimulates muscle activity in the legs by mimicking natural sensory input, which could aid astronauts and bed-ridden patients. The technology uses plungers to push against the bottom of the foot in specific patterns, generating enhanced neuromuscular activity.

SourceUniversity of Houston·JournalNeuroscience Letters·DateOct 7, 2002

Data reanalysis shows cranial measurements are hereditable

A team of researchers reanalyzed the data from Boas' 1912 study on cranial measurements, finding that genetic factors dominate variation in head shape. The study's results contradict Boas' claims that environmental influences are the primary driver of cranial plasticity.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateOct 7, 2002

Most definitive study of its kind shows that sleeping on the stomach increases infant SIDS risk

A large study found that African American infants who slept on their stomachs were at more than twice the risk for SIDS compared to those sleeping in other positions. The research also highlighted disparities in healthcare recommendations and access to information about safe sleep practices among different racial groups.