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Science News for December 9, 2009


Study confirms association between tobacco smoke and behavioral problems in children

A study by Helmholtz Munich confirms the association between tobacco smoke and behavioral problems in children. Children exposed to tobacco smoke prenatally have a higher risk of developing abnormal behavioral symptoms, while postnatal exposure also poses a significant risk.

A new target for lymphoma therapy

Researchers at Boston Children's Hospital have discovered a gene enhancer responsible for activating cancer-causing genes in B cells, leading to the development of a new target for lymphoma therapy. The study suggests that targeting this regulatory component could potentially arrest lymphomas and other blood-related cancers.

SourceBoston Children's Hospital·JournalNature·DateDec 9, 2009

Charles Darwin: More than the origin

The American Journal of Botany presents two papers exploring botanical history before Darwin, his research on plant movements and orchids. Research reveals that Darwin's ideas on plant movements contributed to the discovery of auxin, a hormone essential in plant growth processes.

SourceBotanical Society of America·JournalAmerican Journal of Botany·DateDec 9, 2009

Carnegie Mellon researchers receive grant

Researchers Yoed Rabin and Kenji Shimada are developing an interactive simulator for cryosurgical procedures, combined with a computerized tutor to evaluate quality. This project aims to enhance surgical training by practicing virtual cryosurgical procedures, motivating surgeons to learn and improve their skills.

Why cancer cells just won't die

A cancer researcher has identified a protein called RanBPM that regulates apoptosis, a process by which damaged cells self-destruct. The discovery has implications for both diagnosing and treating cancer, as it may enable targeted therapy to reactivate apoptosis and kill cancer cells.

SourceUniversity of Western Ontario·JournalMolecular Cancer Research·DateDec 9, 2009

'Mini' transplant may reverse severe sickle cell disease

A phase I/II study at Johns Hopkins Medicine has shown that mini stem cell transplantation can safely reverse severe sickle cell disease in nine out of ten patients. The procedure, which uses intravenous transplants of blood-forming stem cells from healthy donors, promotes the coexistence of host and donor cells.

SourceJohns Hopkins Medicine·JournalNew England Journal of Medicine·DateDec 9, 2009

Ubiquitous health

A ubiquitous health monitoring system developed by Japanese researchers can cut hospital visits and save lives by detecting changes in a patient's vital signs. The system uses wearable sensors to track temperature, pulse, and waist size, transmitting data via cellular networks and alerting families or doctors to potential health issues.

SourceInderscience Publishers·JournalInternational Journal of Web and Grid Services·DateDec 9, 2009

Tropical birds waited for land crossing between North and South America: UBC study

A University of British Columbia study found that tropical birds waited until the formation of the Isthmus of Panama land bridge to migrate northward, revealing a key role in biodiversity exchange. The research suggests that many tropical bird species were reluctant to fly across open water and instead waited for the land bridge comple...

SourceUniversity of British Columbia·JournalProceedings of the National Academy of Sciences·DateDec 9, 2009