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Science News Archive 2009 - Page 150


Page 150 of 277

Fallopian tubes offer new stem cell source

Researchers have discovered that human fallopian tube mesenchymal stem cells can differentiate into muscle, fat, cartilage, and bone cell lines, offering a new source for regenerative medicine. The study found that these cells are abundant in fertile women's reproductive years and can be easily isolated and expanded in vitro.

SourceBMC (BioMed Central)·JournalJournal of Translational Medicine·DateJun 17, 2009

University of Colorado team finds definitive evidence for ancient lake on Mars

A University of Colorado at Boulder research team has discovered the first definitive evidence of shorelines on Mars, indicating an ancient lake that was up to 1,500 feet deep. The lake appears to have formed around 3.4 billion years ago and provides a prime target for future landing missions searching for signs of past life.

SourceUniversity of Colorado at Boulder·JournalGeophysical Research Letters·DateJun 17, 2009

JNCI tip sheet -- June 17

A polyomavirus known as MCPyV is associated with fewer metastases and better survival in patients with Merkel cell carcinoma. Long-term survivors of childhood central nervous system malignancies remain at risk for death and are at increasing risk for developing subsequent cancers and chronic medical conditions over time.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateJun 17, 2009

Addition of HPV test to UK cervical screening program no better at detecting cervical cancer

A study published in The Lancet Oncology found that combining HPV testing with routine liquid-based cytology (LBC) screening in the UK did not increase the detection of cervical cancer. However, HPV testing detected cases of precancerous cervical cells in the first round of screening, but this effect was not sustained over two rounds.

SourceThe Lancet_DELETED·JournalThe Lancet Oncology·DateJun 17, 2009

Help for climate-stressed corals

A study suggests that banning certain types of fishing gear, such as spear guns and fish traps, could aid in the recovery of reefs and fish populations affected by coral bleaching events. The research proposes that temporary bans or selective gear restrictions offer a middle ground for reef managers and fishers, reducing pressure on th...

SourceWildlife Conservation Society·JournalJournal of Applied Ecology·DateJun 17, 2009

Contemplating excess wind

A new study in the International Journal of Exergy provides a formula to calculate wind turbine performance and optimize energy production. The formula offers a theoretical boost of 20% efficiency at varying wind speeds, reducing wasted energy by 80%.

SourceInderscience Publishers·JournalInternational Journal of Exergy·DateJun 16, 2009

Giant eruption reveals 'dead' star

Astronomers use ESA's XMM-Newton and Integral space observatories to study a magnetar outburst from the rare 'dead' star SGR 0501+4516. The outburst lasted over four months and released hundreds of smaller bursts, providing valuable insights into extreme matter conditions.

SourceEuropean Space Agency·JournalMonthly Notices of the Royal Astronomical Society·DateJun 16, 2009

'Cannabis alters human DNA' -- new study

A new study found that cannabis smoke damages DNA in ways that could potentially increase the risk of cancer development. The research, published in Chemical Research in Toxicology, used a highly sensitive liquid chromatography-tandem mass spectrometry method to detect damage.

SourceUniversity of Leicester·JournalChemical Research in Toxicology·DateJun 16, 2009

Study gives clues to increasing X-rays' power

Researchers at the University of Nebraska-Lincoln have discovered a way to unleash high-energy X-rays with relatively high intensity using longer wavelength lasers on heavier gaseous atoms. This breakthrough could lead to more powerful and precise X-ray machines, enabling real-time imaging of patients' hearts and microscopic structures.

SourceUniversity of Nebraska-Lincoln·JournalPhysical Review Letters·DateJun 16, 2009

Potential for noninvasive brain tumor treatment

Researchers design a minimally invasive system combining ultrasound and chemotherapy to target brain tumors without surgery or radiation. The approach aims to provide real-time imaging and localized temperature increases to melt liposome shells and release chemotherapy directly to the tumor.

Research proves tai chi benefits for arthritis

A new study by The George Institute for International Health found Tai Chi to have positive effects on improving pain and disability among arthritis sufferers. Researchers are now conducting a trial to establish if similar benefits can be seen in people with chronic low back pain.

SourceResearch Australia·JournalBMC Musculoskeletal Disorders·DateJun 16, 2009