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Science News for January 16, 2002


Early breast cancer shares some risk factors with advanced breast cancer, a study by Yale researchers shows

A new study by Yale researchers found that many risk factors for early breast cancer are also linked to advanced breast cancer. The study, which included over 1,000 women diagnosed with early breast cancer, revealed a correlation between family history, previous breast biopsy, and older age at menopause.

SourceYale University·JournalJNCI Journal of the National Cancer Institute·DateJan 16, 2002

Researchers closer to defining function of two proteins involved in neurotransmitter release

Researchers at UT Southwestern Medical Center have made significant progress in understanding the function of two proteins involved in neurotransmitter release. The study found that RIM1a is essential for long-term plasticity, a process critical for learning and memory. This breakthrough has broad implications for the development of dr...

Scientists use seals as 'underwater eyes'

Researchers equipped Weddell seals with cameras and data recorders to track their movements and interactions with prey, gaining new insights into the habits of Antarctic silverfish and toothfish. The 'seal cam' technique sheds light on the behaviors of these little-known species, including migration patterns and depth ranges.

SourceU.S. National Science Foundation·JournalMarine Biology·DateJan 16, 2002

The stongest game show strategy

Researchers found that players should bank money after each correct answer to maximize their winnings. However, the game's psychological dynamics can lead players to abandon this optimal strategy due to the host's aggressive tactics.

The illusion of drivers

A driver going at 65 miles per hour may think the average speed is over 70, while a slow driver perceives a high proportion of fast cars. Heavy traffic skews perception, making brake and accelerator sensitivity twice as sensitive.

Educational lag for premature infants persists into adulthood

A study of premature infants born in the late 1970s has found that they continue to face educational challenges into adulthood. The research, which followed 242 infants until age 20, found that fewer premature adults had graduated from high school and had lower I.Q. scores compared to their full-term peers.

Blocking transmission of cell-associated HIV

Researchers have developed a mouse model to study the transmission of cell-associated HIV in women, finding that hormonal treatments and agents disrupting lipid rafts can prevent infection. The study reveals the importance of understanding cell-associated HIV transmission for developing effective prevention strategies.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJan 16, 2002

How to hunt an alien Earth

Researchers are using computer simulations to determine if the 47 Ursae Majoris system can contain an Earth-like planet. The system's asteroid belt is in the habitable zone, increasing the likelihood of finding a terrestrial planet.

Hammering cancer cell survivin

Researchers have discovered a new target for treating cancer cells that rely on survivin to survive. This finding offers new hope for patients with cancer who are struggling with this aggressive protein.

SourceJCI Journals·JournalJournal of Clinical Investigation·DateJan 16, 2002