Brightsurf Science News & Current Events

October 20, 2005
Retiring early is not linked to longer life
Retiring early is not linked to longer life, finds new research published online by the BMJ today.

Breakup of glaciers raising sea level concern
The rapid structural breakdown of some important parts of the ice sheets on Greenland and Antarctica is possible, has happened in the distant past, and some

Past illegal blood donation in China linked to hepatitis C virus infection
Research in a rural province of central China has documented that illegal blood donation practices led to high hepatitis C virus (HCV) infection rates in blood and plasma donors during the 1980s and early 1990s, and that failure to screen for HCV in transfusion recipients increased their risk of infection as well, according to an article in the November 15 issue of The Journal of Infectious Diseases, now available online.

World's poorest children missing out on child survival strategies
Interventions to improve child survival are not reaching the poorest children that need them the most, concludes an article in this week's issue of The Lancet.

Alzheimer disease and the blood brain barrier: Is Abeta transport the key?
Aggregation of Abeta appears to contribute to late-onset AD, suggesting that there is an age-associated alteration in brain Abeta clearance via the blood-brain-barrier (BBB).

Stem cells' electric abilities might help their safe clinical use
Researchers from Johns Hopkins have discovered the presence of functional ion channels in human embryonic stem cells (ESCs).

'A virtual Katrina' of deaths every week in US due to racial health gap
Research estimates that health inequalities between white and black Americans cause 84,000 extra deaths every year - equating to a virtual hurricane Katrina every week, says an editorial in this week's BMJ.

Humans are governed by emotions--literally
The emotional responses that guide much of human behavior have a tremendous impact on public policy and international affairs, prompting government officials to make decisions in response to a crisis -- such as the Sept.

Emotional impairment linked to cognitive deficits in bipolar children
Researchers at the University of Illinois at Chicago used functional brain imaging to establish a link between emotional impairment and poor cognition in children with bipolar disorder.

Medical community recognise significance of Herceptin® results in early HER2-positive breast cancer
The latest issue of the New England Journal of Medicine (NEJM) reports that the administration of Herceptin® (trastuzumab) following standard chemotherapy significantly reduces the risk of disease recurrence for women with early-stage HER2-positive breast cancer by 46%.

Got milk? How breastfeeding affects HIV transmission
Many children are infected with HIV during breastfeeding, which requires viral transfer across mucosal barriers.

US government $20M NIAID grant funds Proteome Systems' 'catalytic scavenger compounds'
Proteome Systems, a leading medical technology company specializing in diagnostics and therapeutics, and its US partners today announced to the US investor community they have been awarded a National Institute of Health (NIH) grant to develop its

More than 50% of surveyed Norwegian doctors self-prescribe
More than half of Norwegian doctors surveyed prescribe themselves medication, and most of them start self-prescribing just after leaving medical school.

Scientific freedom: ICSU revises and reaffirms commitment to the 'Universality of Science'
Warning that changes in the global political climate and concerns about international terrorism pose new challenges to scientific freedoms, the International Council for Science (ICSU) today urged its members to consider a renewed and broader commitment to the organization's bedrock Principle of the Universality of Science.

Logging doubles threat to the Amazon, rivaling clear-cutting, study suggests
Human activities are degrading the Amazonian forest at twice the rate previously estimated, suggests a new study that adds the effects of logging to those of clear-cutting.

Claude Steele to address issues of stereotypes and academic achievement
Claude M. Steele, director of the Center for Advanced Study in the Behavioral Sciences in Palo Alto, California, and Lucie Stern Professor in the Social Sciences at Stanford University, will present the Second Annual Brown Lecture in Education Research, on October 20, 2005, in Washington, DC.

Molecular drug pump may help reduce risk of Alzheimer's
A molecule that has long been an obstacle to cancer chemotherapy and drug treatments for brain disorders may soon become an ally in the fight against Alzheimer's disease, according to researchers at Washington University School of Medicine in St.

For a high-specification wheelchair
Over the next two years TEKNIKER Technology Centre is to develop a wheelchair with advanced specifications, thanks to the patronage of the Social Work department of the Kutxa Savings Bank.

Recent landslides in La Conchita, California belong to much larger prehistoric slide
The deadly landslide that killed 10 people and destroyed 30 homes in La Conchita, California last January is but a tiny part of a much larger slide, called the Rincon Mountain slide, discovered by Larry D.

New gene regulation mechanism discovered
Researchers have discovered a new kind of messenger RNA molecule that is rapidly cleaved in response to cellular stress such as viral infection.

Ultrafast lasers take 'snapshots' as atoms collide
Using laser pulses that last just 70 femtoseconds (quadrillionths of a second), physicists have observed in greater detail than ever before what happens when atoms collide.

Stronger than steel, harder than diamonds
Working with a material 10 times lighter than steel -- but 250 times stronger -- would be a dream come true for any engineer.

Exercise vital to build strong bones
Exercise can help reduce the risk of osteoporosis and related fractures, a new report explains.

Reify Corporation's Visible Discovery(tm) technology showcased at ICSB conference
Reify Corporation's Visible Discovery(tm) platform is showcased in two poster presentations describing breakthrough experimental methods at the Sixth Annual International Conference on Systems Biology.

Mayo Clinic Cancer Center finds possible genetic link to pancreatic cancer
Mayo Clinic researchers have found the risk of developing pancreatic cancer at a young age (under 60) to be twice as high for people who carry a mutation of the gene that causes cystic fibrosis, compared to noncarriers.

New approach to ensure challenges to data access and management don't slow scientific progress
Complex changes in data production, distribution and archiving--and issues they raise regarding who pays for data, who preserves it and who has access to it--should prompt an international initiative that ensures current and future scientists worldwide will have the information they need, according to a new report on challenges to data management and access presented today to the International Council for Science (ICSU).

Treatment advances for lymphoma have reduced deaths by 70%
New treatment advances for patients with follicular lymphoma, previously considered an incurable cancer, have reduced deaths in the first four years by 70 percent.

Tips from the Journals of the American Society for Microbiology
Highlights include New topical antibiotic may inhibit skin infections, More diverse bacteria found in Arctic tundra than forest soil and Human neurons mount innate immune response during viral attack.

Satellite study doubles forest disturbance estimates in Brazil--impacts widespread
Results from a new large-scale, high-resolution satellite study indicate that forest degradation in the Brazilian Amazon has been underestimated by half.

Trained wasps may be used to detect bombs, bugs, bodies and more
An unusual device that uses trained wasps, rather than trained dogs, to detect specific chemical odors could one day be used to find hidden explosives, plant diseases, illegal drugs, cancer and even buried bodies, according to a joint study by researchers at the University of Georgia and U.S.

Sunny future for nanocrystal solar cells
Researchers with Berkeley Lab and the University of California, Berkeley, have developed the first ultra-thin solar cells comprised entirely of inorganic nanocrystals and spin-cast from solution.

Nanoscale study gives new insight into heat transfer in biological systems
Researchers at Rensselaer Polytechnic Institute have found that heat may actually move better across interfaces between liquids than it does between solids.

NHS should have an independent regulator
The NHS should have an independent regulator like other public utilities in the UK, argues a senior doctor in this week's BMJ.

International conference on AIDS India presents lifetime achievement award
Today, the 5th International Conference on AIDS INDIA presented Dr.

Flavonoids may inhibit prostate cancer
Researchers orally fed the flavonoid apigenin to mice two weeks before implanting a prostate tumor, then continuing the feedings for eight weeks.

World leaders in cancer research to meet in Liverpool
International experts in lung cancer research will meet in Liverpool next week to discuss the development of early detection systems for the disease.

Guidelines needed to help doctors treat different types of insecticide self-poisoning
Separate guidelines are needed for the treatment of different types of organophosphorus insecticide self-poisoning, concludes an article in this week's issue of The Lancet.

Molecule crucial for processing non-coding RNA identified
The discovery that the coding regions of a gene could appear in separate segments along the DNA won the 1993 Nobel Prize in Physiology or Medicine for Richard J.

Institute of Medicine advisory: IOM's 35th annual meeting explores pharmaceuticals
The Institute of Medicine of the National Academies will hold its 35th annual meeting on Monday, Oct.

Yale researchers make cell biology quantitative
Yale researchers have reported a method to count the absolute number of individual protein molecules inside a living cell, and to measure accurately where they are located, two basic hurdles for studying biology quantitatively.

Premier global vascular surgery meeting in New York
The 32nd Annual VEITHsymposium™ will be held November 17-20, 2005 at the Sheraton New York Hotel & Towers (New York, NY).

Rapid restoration of immunity in immune-suppressed cancer patients using T-cell vaccines
Researchers at the University of Pennsylvania School of Medicine found that protective levels of immunity against pneumococcus could be obtained in immune-suppressed myeloma patients who were given a prophylactic bacterial vaccine in addition to a new autologous T-cell-based vaccine only two weeks after their stem-cell transplantation.

Study finds defibrillators available in many high schools
A greater percentage of high schools had automated external defibrillators (AEDs) -- devices that can be used to treat cardiac arrest victims -- than senior centers, despite the fact that cardiac arrests appear more common in senior centers.

Quantum dots that produce white light could be the light bulb's successor
Coat a blue LED with a thin layer of microscopic beads called quantum dots of a particular size and the resulting hybrid LED gives off white light, similar to that produced by an incandescent lamp.

Sirolimus-eluting Coronary Stent outperforms paclitaxel eluting stent in seven study meta-analysis
The most comprehensive and detailed analysis conducted to date of drug-eluting stent comparative trials shows a marked difference in the rate of target lesion revascularization (TLR) and restenosis in patients who received the CYPHER® Stent vs. the Taxus Stent in seven studies totaling 4,214 patients.

Scottsdale Healthcare, TGen announce strategic alliance
Scottsdale Healthcare today announced a strategic alliance with the Translational Genomics Research Institute (TGen) in which Scottsdale Healthcare will become a primary clinical research site for TGen.

Sirolimus-eluting Coronary Stent is cost effective vs. bypass surgery
An independent analysis of a clinical trial comparing the cost-effectiveness of the CYPHER® Sirolimus-eluting Coronary Stent vs. bypass surgery suggests that treatment with the CYPHER® Stent offers a potential cost-savings over bypass surgery.

Rice scientists build world's first single-molecule car
Rice University scientists have constructed the world's smallest working car -- a single molecule

US Congress blocked opportunity to make food aid more effective
US Congress has wasted an opportunity to tackle the rising numbers of chronically hungry people in the world, states an editorial in this week's issue of The Lancet.

Space concepts improve life in the desert
An innovative tent, developed with the use of space concepts, is now on display at the 'SAFE: Design On Risk' exhibition at The Museum of Modern Art in New York.

Magnetic nanoparticles assembled into long chains
Chains of 1 million magnetic nanoparticles have been assembled and disassembled in a solution of suspended particles in a controlled way, scientists at the National Institute of Standards and Technology (NIST) report.

Selective logging causes widespread destruction of Brazil's Amazon rainforest, study finds
Selective logging -- the practice of removing one or two trees and leaving the rest intact -- is often considered a sustainable alternative to clear-cutting.

Qld Brain Institute gains $650,000 spinal research bequest from courageous Lisa Palmer
A young quadriplegic woman's courageous life and premature death may lead eventually to a cure for people paralysed by spinal injury.

Stanford study reveals protein's Jekyll-and-Hyde role in cancer growth
The protein menin appears to have a split personality. Though menin is well-known for its ability to suppress endocrine tumors, researchers at Stanford University School of Medicine have discovered that it is also a key player in the development of some forms of acute leukemia.

Cell cultures can sort out CJD and scrapie infectious agents
Research at Yale University School of Medicine shows that infection with a weak strain of Creutzfeldt-Jacob Disease (CJD) prevents infection by more virulent strains and that the protection requires persistent replication by the infectious agent, but not misfolded prions.
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