Brightsurf Science News & Current Events

April 13, 2004
Damage to brain vessels increases the chance of dementia and depression
Dutch researcher Niels Prins has discovered that elderly people with a lot of damage to the small blood vessels in the brain have a greater chance of developing dementia or depression.

'Virtual colonoscopy' techniques and training need to be improved before widespread clinical use
The accuracy of computed tomographic colonography (

Engineered virus provides impetus in search for HIV vaccine
A hybrid gene therapy vector that contains components of two viruses could provide a vehicle for producing a vaccine against a host of diseases, including the human immunodeficiency virus, said researchers from Baylor College of Medicine.

Researchers go fishing, pull out antigens
Researchers at National Jewish have developed a method for finding the molecular targets of the immune system, known as antigens.

Conservation International & SC Johnson invest in Ecuador's rainforest to offset climate impacts
SC Johnson has made a $50,000 contribution to Conservation International to fund project work that will offset the carbon impacts associated with the printing and distribution of every SC Johnson Public Report dating back to 1991 as well as office paper for the past two years.

Culture of primate non-aggression
Primatologists often characterize learned behavioral differences as

Estrogen offers no overall benefit for disease prevention in postmenopausal women with hysterectomy
Taking estrogen provides no overall benefit for chronic disease prevention in postmenopausal women with previous hysterectomy, but does appear to increase the risk of stroke and decrease the risk of hip fracture, according to a study in the April 14 issue of The Journal of the American Medical Association (JAMA).

Decoding a sulfate-breathing bug
Paving the way for better methods to protect pipelines and remediate metallic pollutants, scientists have sequenced the genome of a sulfate-breathing bacterium that can damage oil and natural gas pipelines and corrode oilfield equipment.

Lung cancer now leading cause of cancer death in women
Lung cancer has now surpassed breast cancer as the leading cause of cancer death, accounting for one fourth of all female cancer deaths last year.

Concussion causes emotional disturbances, say researchers
Researchers from the University of Toronto and the Toronto Rehabilitation Institute have documented negative mood disturbances such as depression and confusion resulting from sports concussions for the first time.

Imaging the brain solving problems through insight
The sudden flash of insight that precedes moments of insight is familiar to us all, and is characteristic of many types of cognitive processes besides problem-solving, including memory retrieval, language comprehension, and various forms of creativity.

ORNL, National LambdaRail partners in major network project
Scientists and researchers at universities and Department of Energy labs around the nation are closer to being connected via high-speed networks that live up to their promise because of an agreement between Oak Ridge National Laboratory and National LambdaRail.

Batch control makes chemical reactions easier to manage
Two Dutch researchers have developed a method for managing so-called batch productions.

Alarming rise in incidence of lung cancer and death in women
In the past fifty years, there has been a 600 percent increase in the number of women who will be diagnosed with lung cancer and die of the disease.

Fish no exception to trend in marine-organism disease
Fish are no exception to an overall increase in marine disease.

New light shed on atrial fibrillation after bypass surgery
An analysis of 4,657 patients undergoing coronary artery bypass surgery has shown that discontinuing certain heart medications such as beta blockers and ACE inhibitors can lead to abnormal accelerations in heart pumping known as atrial fibrillation, while those and other agents can offer protection.

World's Alzheimer's disease experts to showcase latest research
The newest treatment advances in Alzheimer's disease and steps toward prevention will be on display at the 9th International Conference on Alzheimer's Disease and Related Disorders, July 17-22, 2004, at the Pennsylvania Convention Center in Philadelphia.

Building democracies, establishing strong regional leaders help to prevent conflict
Building democracies even on rocky soil, promoting strong regional leaders and maintaining long-standing arms control treaties together create the best odds for avoiding international conflict, according to a Penn State political scientist.

St. Jude researchers create image of enzyme that orchestrates natural genetic engineering
New insight into the structure of a virus enzyme that orchestrates a natural type of genetic engineering in bacteria provides important clues into how similar enzymes control the same process in human cells during DNA replication and repair.

Small uterine fibroids may be linked with increased risk of miscarriage, early study results show
Early results from a pioneering study at the University of North Carolina at Chapel Hill indicate that small uterine fibroids are associated with an increased risk of miscarriage.

Cinnamon may help to alleviate diabetes says UCSB researcher
Cinnamon may be more than a spice -- it may have a medical application in helping to prevent diabetes.

Renewable energy promotes U.S. job growth better than investment in fossil fuels
A new assessment of the economic effects of building up this country's renewable energy sector reinforces the results of previous studies: that investing in renewable energy sources creates more jobs than an equivalent investment in the fossil fuel sector that dominate the energy industry today.

Predicting cancer patient survival with gene expression data
Cancer specialists often talk about cancer as an umbrella term for over 200 different diseases, each having unique characteristics.

Article examines reasons contributing to epidemic of lung cancer in U.S. women
An article in the April 14 issue of The Journal of the American Medical Association (JAMA) reviews current information on the

Marine disease on the rise?
While all indicators point to a real increase in disease in marine organisms, scientists have no baseline data to measure these increases against and so cannot directly test whether marine diseases are genuinely increasing.

Salt-tolerant rice requires careful selection
Research in the Netherlands has revealed that under sub-optimal conditions, the best way for rice breeders to improve the rice harvest is to produce varieties whose performance is not fertiliser dependent.

New book urges ecologists to think 'outside the helmet'
An ecologist at Washington University in St. Louis has co-authored a new book that is forcing the pith helmet set to

Latest fashion fad concerns eye M.D.s
News about it is spreading over the Internet. It's the topic of discussion on morning television talk shows.

Testing drug's ability to reverse stroke after standard three-hour window has closed
Ischemic stroke patients who arrive at the hospital too late to receive currently available treatment options might someday have a new treatment option.

Avian influenza outbreaks create concern about human infection Mayo Clinic researchers warn
The occurrence of avian influenza in humans is a reminder of the vulnerability of people to an emerging pandemic, Mayo Clinic researchers warn in the current issue of Mayo Clinic Proceedings.

Online tool estimates long-term chance of surviving prostate cancer
A study just completed by researchers at the Josephine Ford Cancer Center has resulted in the most comprehensive long-term prostate cancer survival model available to date.

Lung cancer in women is a 21st century epidemic
Future lung cancer research needs to include gender-specific studies to address the important differences that exist between men and women with lung cancer, according to a paper published in the April 14 issue of the Journal of the American Medical Association (JAMA).

Using telltale toolmarks to fight crime
Research at the U.S. Department of Energy's Ames Laboratory could help connect toolmarks left at a crime scene to the tool that left those unique markings.

Inspiring invention
Pointing out that invention requires both ingenuity and a skilled workforce, a new report to be released this month says that the United States must take action now to maintain its position as the world invention leader.

Transformation of heated meat substitutes is unpredictable
Researchers in the Netherlands have investigated the molecular structure of plant proteins that must provide alternatives for the animal proteins in our food over the next 10 years.

Gene plays major role in formation of stem cells and cancer
Researchers from the Netherlands Cancer Institute in Amsterdam have discovered a common link between cancer cells and stem cells.

Supercold, wiggling 'jelly' presents evidence of new kind of superfluidity
Duke University researchers may have reached a milestone in physics by cooling and confining a gas of lithium-6 atoms into a kind of oscillating

UF researcher: Animals think in their own way, but unlike humans
Do vampire bats have the ability to show gratitude by returning a favor?

Old mound may lead to new ideas about people 5,000 years ago
Thanks in part to dynamite and the gold-seeking Mexican fishermen who detonated it in the late 1970s, archaeologists have discovered the remains of a 5,000-year-old shell mound.

MacroPore - adipose-derived cells - potential to engraft & differentiate into heart muscle
MacroPore announced pre-clinical findings that suggest for the first time that adipose-derived regenerative cells have the potential to engraft injured myocardium and express markers consistent with differentiation into cardiac myocytes.

Aha! Cognitive neuroscientists reveal creative brain processes
While creative or

WHI study finds no heart disease benefit, increased stroke risk with estrogen alone
A large, multi-center heart disease prevention study, part of the Women's Health Initiative (WHI), found that estrogen-alone hormone therapy had no effect on coronary heart disease risk but increased the risk of stroke for postmenopausal women.

Biologist's find alters the bacteria family tree
The bacteria family tree may be facing some changes due to the recent work of an evolutionary biologist at Washington University in St.

Concrete floor cracks after 15 minutes of exposure to a fire
Dutch researcher Joris Fellinger has developed a model that assesses and predicts the fire-resistant behaviour of concrete floor slabs.
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