Brightsurf Science News & Current Events

July 07, 2005
VCU study: Low-dose oral contraceptives may increase risk for heart attack or stroke
Women using low-dose oral contraceptives are at an increased risk for a heart attack or stroke while taking the pill - however the risk disappears after discontinuation, according to a Virginia Commonwealth University study published in the July issue of the Journal of Clinical Endocrinology and Metabolism.

AGU 2005 Fall Meeting - media advisory 1
Some 11,000 scientists from all over the world are expected to assemble for this premier meeting of the Earth and space sciences.

Trio of plant genes prevent 'too many mouths'
A signaling pathway required for plants to grow to their normal size appears to have an unexpected dual purpose of keeping the plant from wallpapering itself with too many densely clustered stomata.

AIDS is not a problem for Africa alone
An Editorial in this week's issue of The Lancet comments that

Bedsharing, even with non-smoking parents, may increase risk of SIDS
SIDS is the leading reason given for death among infants one month to one year old and sharing a bed with parents who smoke increases the risk of SIDS.

UF study: Child raising toughest on young grandmothers
Age may work in reverse when it comes to raising grandchildren, suggests a University of Florida study that finds younger grandmothers in this role are depressed more often than their older counterparts.

Baseball food and drink: Healthy chemistry scores a surprise hit
A baseball stadium may not be the first place that comes to mind when looking for healthy foods, but researchers are finding that ballpark favorites, including beer, are surprisingly good for you...in moderation, of course.

HIV domains take on new functions in mediating immunity
HIV evades the host immune system to cause infection. In a JCI study researchers examine the fusion peptide (FP) of HIV and show it plays two roles in HIV infection - it mediates fusion of the virus with the cell membrane, while also downregulating the T cell responses that normally block infection.

Nanotubes inspire new technique for healing broken bones
Scientists have shown for the first time that carbon nanotubes make an ideal scaffold for the growth of bone tissue.

Discovery of 'doping' mechanism in semiconductor nanocrystals
Novel electronic devices based upon nanotechnology may soon be realized due to a new understanding of how impurities, or 'dopants,' can be intentionally incorporated into semiconductor nanocrystals.

Stepping up therapy for stroke and other CNS disorders
Stroke is a major medical problem, with only very limited treatment options.

Specific regions of brain implicated in anorexia nervosa, finds Univ. of Pittsburgh study
Why those with anorexia nervosa are driven to be excessively thin and are unreasonably negligent of the seriousness of their condition could be due to over activity of a chemical system found in a region deep inside the brain.

Scientists find evidence of catastrophic sand avalanches, sea level changes in Gulf of Mexico
Research scientists in the Gulf of Mexico have linked catastrophic sand avalanches to rapid sea level changes.

Identical twins may have more differences than meet the eye
Identical twins lose some fundamental similarities as they grow older, a new study reports.

JCI table of contents August 1, 2005
This press release contains summaries, links to PDFs, and contact information for the following newsworthy papers to be published online on July 7th in the JCI: HIV domains take on new functions in mediating immunity; Fat cells and cholesterol: The plot thickens; Regulatory T cell subset: New, natural, and naive; Stepping up therapy for stroke and other CNS disorders.

Did humans cause ecosystem collapse in ancient Australia?
Massive extinctions of animals and the arrival of the first humans in ancient Australia may be linked, according to scientists.

Debate about faith and politics in an historical context
The relationship between faith and politics was a frequently discussed theme in the nineteenth-century Dutch press.

Percentage of school integration affects minority youths' sense of injustice
A study of Chicago public high school students suggests that American minority groups' widespread belief that the police and the courts treat them unfairly may begin to solidify in the 9th and 10th grades.

DNA from feathers tells tale of eagle fidelity
A trail of feathers led a team of Purdue University scientists to confirm that eagles from central Asia are quite possibly the most faithful of birds.

Petition for increased EU funding sees decisive response from scientific community
A petition launched by the European Molecular Biology Organization (EMBO) and the European Life Sciences Forum (ELSF) calling for increased funding for research in the EU's Framework 7 budget has met with a rapid and decisive response from the scientific community.

Fundamental limitation to quantum computers
Quantum computers that save their data in so-called quantum bits (or qubits) will be confronted with a fundamental limitation.

How a red lady becomes black and white
A small quantity of chloride in the red paint in the painting 'Portrait of a Young Lady' by Peter Paul Rubens in the Mauritshuis Museum in The Hague is causing the red parts of the painting to slowly turn black and white under the influence of light.

Stephen P Goff awarded inaugural Retrovirology Prize
Stephen P. Goff has been awarded the inaugural Retrovirology Prize; it was announced today.

Ancient diets of Australian birds point to big ecosystem changes
A shifting diet of two flightless birds inhabiting Australia tens of thousands of years ago is the best evidence yet that early humans may have altered the continent's interior with fire, changing it from a mosaic of trees, shrubs and grasses to the desert scrub evident today, according to a University of Colorado at Boulder-led team.

Retina adapts to seek the unexpected, ignore the commonplace
Researchers at Harvard University have found evidence that the retina actively seeks novel features in the visual environment, dynamically adjusting its processing in order to seek the unusual while ignoring the commonplace.

Bottom quarks reveal something of their identity
Dutch researcher Bram Wijngaarden investigated how bottom quarks are created during collisions between protons and antiprotons.

Barkcloths demonstrate women's importance
Dutch researcher Anna-Karina Hermkens has produced a description and analysis of the dynamics of gender and identity in the culture of the Maisin, an indigenous group from Papua New Guinea.

Could exercise protect older people from hip fracture?
Certain types of exercise could protect against the steep increase in risk of hip fracture with age, suggests research in this week's issue of The Lancet.

Cedars-Sinai's live donor liver transplant program receives 'unos-approved' designation
The liver transplant program at Cedars-Sinai Medical Center has become the first in the nation to be designated a UNOS-approved live donor liver transplant center.

How HIV disables the cells' call for help
The HIV virus hides out in the very immune system cells that are meant to protect the body from viral infection.

Deep-sea jelly uses glowing red lures to catch fish
As successful fishermen know, if you want to catch fish, you have to use the right bait or lure.

Acupuncture offers short-term benefit for arthritis
Results of a randomised trial in this week's issue of The Lancetsuggest that acupuncture could reduce pain and improve joint functioning in the short-term for people with osteoarthritis of the knee.

Older footballers more likely to 'do a hamstring'
Older footballers and those with previous injuries are most likely to suffer hamstring injuries, a Monash University researcher has found.
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