Add BrightSurf on Google Email

Science News Archive September 2003 - Page 5


Page 5 of 10

Was the Universe born in a Black Hole?

A new model suggests that the Big Bang could have been an explosion within a black hole, with the universe expanding into an infinite space. The theory, developed by UC Davis and University of Michigan mathematicians, satisfies Einstein's equations while allowing for expansion.

SourceUniversity of California - Davis·JournalProceedings of the National Academy of Sciences·DateSep 16, 2003

North American mammographers prone to more false positives, study finds

A recent study found that North American mammographers are more likely to interpret mammograms as abnormal, leading to higher rates of false positives and unnecessary follow-up procedures. The study analyzed data from 32 community-based screening programs in North America and compared outcomes with those in other countries.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateSep 16, 2003

Longer commute for cancer treatment associated with better survival

Patients who traveled farther for cancer treatment had improved overall and progression-free survival rates, suggesting that access to information and resources plays a crucial role in cancer outcomes. The study's findings highlight the importance of considering travel distance as a potential factor in phase II clinical trial results.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateSep 16, 2003

Religion helps shape wealth of Americans, study finds

A study by Ohio State University's Lisa Keister found that people who regularly attend religious services tend to be more wealthy than those who don't. The effect of religion is robust even after considering other factors such as inheritances and education, suggesting that faith influences spending and saving strategies.

SourceOhio State University·JournalSocial Forces·DateSep 16, 2003

Ceramics reinforced with nanotubes

The new material has up to five times the fracture toughness of conventional alumina, making it more forgiving under dynamic loads. It also exhibits high electrical conductivity ten trillion times greater than pure alumina, with interesting thermal properties that make it suitable for thermal barrier coatings.

SourceUniversity of California - Davis·JournalApplied Physics Letters·DateSep 16, 2003