Early stage, HER2-positive breast cancer patients at increased risk of recurrence

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SAN ANTONIO, TEXAS - Early-stage breast cancer patients with HER2 positive tumors one centimeter or smaller are at significant risk of recurrence of their disease, compared to those with early-stage disease who do not express the aggressive protein, according to a study led by researchers at The University of Texas M. D. Anderson Cancer Center.

Astronomers dissect a supermassive black hole with natural magnifying glasses

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An essay proves that vegetation could recover in the ski resort of Sierra Nevada

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The conditioning Works of Sierra Nevada's ski runs have destroyed a great amount of vegetable species. The researchers of the University of Granada (Spain) have already managed to grow in the laboratory two native bushy species in order to suggest new mechanisms for vegetable cover restoration. They will try to use them to preserve the biodiversity in the National Park of Sierra Nevada.

Planet formation could lie in stellar storms rather than gravitational instability

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New research suggests that turbulence plays a critical role in creating ripe conditions for the birth of planets. The study, to be published in The Astrophysical Journal, challenges the prevailing theory of planet formation.

Using three-dimensional simulations of the dust and gas that orbits young stars, the study demonstrates that turbulence is a significant obstacle to gravitational instability, the process that scientists have used since the 1970s to explain the early stage of planet formation.

Climate-change set-back for acidified rivers

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Climate change is hampering the long-term recovery of rivers from the effects of acid rain, as wet weather counteracts improvements, according to a new study by Cardiff University.

The research, by Professor Steve Ormerod and Dr Isabelle Durance of the School of Biosciences, took place over a 25 year period around Llyn Brianne in mid-Wales. Their findings are published online today in the British Ecological Society's Journal of Applied Ecology.

Biomarkers: What can they tell us

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SAN ANTONIO - As cancer researchers move away from the general use of chemotherapy and into more targeted approaches, scientists are working to discover effective ways to measure response and risk. Data presented at the CTRC-AACR San Antonio Breast Cancer Symposium illustrate the cutting edge of biomarker discovery and development.

Reductions in Breast Density Predict Potential Benefit of Tamoxifen Abstract #61, Jack Cuzick, Ph.D.

Flame retardants prove ineffective on fresh-cut Christmas trees

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PULLAUP, WA – This Christmas season, think twice about spending money on a commercial flame retardant for your Christmas tree. The good, old-fashioned method—keeping your tree in a container of fresh water—is probably all you need to keep your tree green and healthy. Researchers have determined that some flame retardants don't work on cut Christmas trees; in fact, in several cases the chemical retardants sped up the drying process and made trees more flammable.

Malaria Journal supplement evaluates steps toward elimination

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There are hurdles to clear before malaria elimination can be achieved. A supplement published in Malaria Journal features a series of articles reviewing the many aspects of the research agenda for global malaria elimination.

Molecules in the spotlight

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A novel x-ray technique allowing the observation of molecular motion on a time scale never reached before has been developed by a team of researchers from EPFL and the Paul Scherrer Institute (PSI) in Switzerland. Results of the research led by Professor Majed Chergui, head of EPFL's laboratory of Ultrafast Spectroscopy in collaboration with the FEMTO group at PSI appear online December 11 in the journal Science.

Parkinson's disease can affect more than just the body

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King of Prussia, PA - December 10, 2008 – Parkinson’s disease affects 6.3 million people worldwide. While the disease is recognized for its profound effects on movement, up to 40 percent of Parkinson’s disease patients also develop changes in thought, behavior and judgment.