Brightsurf Science News & Current Events

August 01, 2004
New England forests at greater risk from air pollution
When it comes to forests, air pollution is not an equal opportunity hazard.

Forest managers can fight invasive species that come with roads
Road density in northern Wisconsin has doubled during the last 60 years, but forest managers have a time window to fight the non-native plants that often come with construction and overwhelm native plant life.

Warmer weather, human disturbances interact to change forests
While a rapidly changing climate may alter the composition of northern Wisconsin's forests, disturbances such as logging also will play a critical role in how these sylvan ecosystems change over time.

Pioneering the basics for new kind of cancer vaccine
Mayo Clinic and British researchers have developed a new approach to cancer vaccines that purposely kills healthy skin cells to target the immune system against tumors.

Two-pronged attack targeting EGF receptor hinders cancer cell growth
Hitting the epidermal growth factor receptor (EGFR) both high and low with a combination of drugs for targeted cancer therapy curbs cancer cell growth more effectively than using the drugs each by themselves, researchers from the University of Wisconsin-Madison reported in the August 1 issue of the journal Cancer Research.

New minimally invasive approach to upper lumbar fusion surgery reduces complication risk
Surgeons who perform minimally invasive spine fusion surgery find access to the upper portion of the lumbar spine difficult because major blood vessels, nerves and important muscles are situated in the way of the usual approaches.

August 2004 Ophthalmology journal
Studies from the August 2004 issue of Ophthalmology, the clinical journal of the American Academy of Ophthalmology, are now available.

'Cancerphobia' lawsuits predominate despite disproportion to actual risk of breast cancer
Lawsuits against radiologists and other physicians based on delays in breast cancer diagnosis and treatment have become prevalent due to misconceptions of how aggressive breast cancer can be and how effective screening mammography really is, according to a new article by Leonard Berlin, MD, of the Rush North Shore Medical Center and Rush Medical College in Chicago, IL.

MRI better than X-Ray for some traumatic hip fractures
MRI reveals that greater trochanteric fractures of the hip that are diagnosed as isolated on X-ray are frequently underestimated and are neither isolated nor minor, say a pair of researchers from Presbyterian Hospital, New York, NY.

Study: Mothers turn fearless when peptide level drops
Everyone knows not to get between a mother and her offspring.

Ants protect plants better when jacked up on nectar
Researchers report for the first time that when plants supply ants with nectar, it boosts the ants' desire for meat, potentially making them better bodyguards for the plant.

Lake research offers clues to managing crayfish invasions
Rusty crayfish, an invasive species now crawling across the rocky bottoms of lakes and streams throughout the United States and Canada, may not always have a stronghold once they enter these bodies of water.

To take advantage of research funding, academic radiology departments need to reorganize efforts
Although federal funds for radiology research are more widely available than ever, many medical school-based radiology departments have little or no research funding, say the results of a recent consensus conference that outlined ways to improve research efforts.

A changing landscape may have dire implications for birds
In their desire to get close to nature by building lakeside cottages and homes in the woods, Americans may very well be hastening the decline of many native bird species that breed in forest habitats.

In search of a lean gene
By altering the expression of a single -- albeit different - gene, Drs.

Clusters of alterations on PIK3CA gene found in brain cancers
Hotspots in two areas of a gene that encodes a specific signaling enzyme, or kinase, are vulnerable to a variety of mutations found in five types of brain cancers, according to a report published in the August 1 issue of the journal Cancer Research.

Study shows that fluorescence spectroscopy can distinguish brain tumor from normal tissue
When neurosurgeons attempt to remove the deadliest type of brain tumor, glioblastoma multiforme (GBM) nothing is more important - or more challenging - than distinguishing normal tissue from tumor.

Duke study disputes idea that trees can 'relocate' quickly in response to climate change
In a study with implications for how North American trees might respond to a changing climate, molecular information collected by Duke University researchers refutes a widely accepted theory that many of the continent's tree species migrated rapidly from the deep South as glaciers retreated at the end of the last Ice Age.

Droughts like 1930s Dust Bowl may have been unexceptional in prehistoric times, new study suggests
Events like the great Dust Bowl of the 1930s, immortalized in

GSK'S Requip(R) (ropinirole HCl) significantly reduces periodic leg movements in patients with RLS
New data published in the August issue of SLEEP shows that patients with primary Restless Legs Syndrome (RLS) and with periodic leg movements during sleep (PLMS), have fewer awakenings resulting from involuntary kicks when treated with GlaxoSmithKline's Requip (ropinirole HCl).

Ecologist calls for creation of an international panel to assess human behavior
Stanford University Professor Paul R. Ehrlich is urging fellow ecologists to join with social scientists to form an international panel that will discuss and recommend changes in the way human beings treat one another and the environment.

Radiofrequency ablation safe and feasible for eradicating lung tumors
Radiofrequency ablation (RFA), the use of electrodes to heat and destroy abnormal tissue, is a promising technique to safely and effectively treat patients with inoperable lung tumors, say researchers from the IRCCS Hospital of Oncology in Bari, Italy.

Lehmann lovegrass won't succumb to fire
Fire, a tool commonly used by land managers to control the introduced grasses, doesn't seem to have any affect on the abundance of Lehmann lovegrass, a non-native species, researchers report at the Ecological Society of America's annual meeting.

An exotic grass kills trees by hijacking their water
At the century-old Desert Laboratory in Tucson, Ariz., buffelgrass snags soil water before foothill palo verde trees can.

DNA variations surprise researchers
Scientists at The Hospital for Sick Children (Sick Kids), Brigham and Women's Hospital (BWH) and Harvard Medical School (HMS) have made the unexpected discovery that significant differences can exist in the overall content of DNA and genes contained in individual genomes.
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