Brightsurf Science News & Current Events

December 03, 2003
Origin of multiple myeloma found in rare stem cell
Johns Hopkins Kimmel Cancer Center scientists have identified the cell likely to be responsible for the development of multiple myeloma, a cancer of the bone marrow that destroys bone tissue.

'Musical fruit' rich source of healthy antioxidants; black beans highest
Although researchers haven't come up with a foolproof way to avoid the indelicate side effect of beans, they have found yet another reason why you should eat more of them.

Estrogen promotes gender differences in brain's response to stress
Depression and other stress-related disorders are far more prevalent in young women than men.

Crucial moments on the way to Mars
Mars Express, ESA's first probe to Mars, still has some challenges to face.

Forensic radiology makes virtual autopsy a reality
Swiss investigators are partnering the latest in radiologic imaging technology with forensic science to provide a bloodless, minimally invasive method to examine victims for causes of accidental deaths and murders.

Faster, better, cheaper: Open-source practices may help improve software engineering
Walt Scacchi of the University of California, Irvine, and his colleagues are conducting formal studies of the informal world of open-source software development, in which a distributed community of developers produces software source code that is freely available to share, study, modify and redistribute.

Nutrient-poor oceans generate their food 'hot spots'
Satellite observations have indicated the unexpected occurrence of unusually high concentrations of chlorophyll in Pacific Ocean poor zones.

The dopamine receptor D1 gene and ADHD: A piece of the genetic puzzle?
Attention-deficit/hyperactivity disorder (ADHD) has a strong genetic basis, and because dysregulation of the dopamine system is believed to cause the disorder, dopamine system genes are considered as candidates for involvement in ADHD susceptibility.

You're my wife?
Two different research teams in America have documented memory problems that might be associated with patients taking statins, the cholesterol-lowering drugs.

Vanuatu: The coral reef, record of a 23,000 year history
An IRD research team and their American co-workers have succeeded in retracing over a 23,000 year period the history of a coral reef of the Island of Urelapa, in Vanuatu.

Social behavior among monkeys may be more nature than nurture
An unusual experiment with monkeys who were switched between mothers shortly after birth has demonstrated the importance of nature over nurture in behavior.

Mercury in ocean fish may come from natural sources, not pollution
Mercury levels in yellowfin tuna caught off the coast of Hawaii have not changed in 27 years, despite a considerable increase in atmospheric mercury during this time, according to a new study.

News for moms-to-be with preeclampsia: Hospital choice helps avoid a cesarean delivery
Moms-to-be with preeclampsia can reduce their chance of having a cesarean delivery by going to a hospital that specializes in maternal and fetal care, Saint Louis University research shows.

Can EPO prevent loss of brain function in schizophrenia?
Erythropoietin (EPO) is a candidate for neuroprotection in brain disease.

Patients stop meds when benefit changes
Large increases in co-payments in tiered prescription drug plans increase the likelihood that patients will choose not to pay them and to stop taking prescribed drugs, including needed medications for chronic illnesses such as heart disease and acid reflux, according to a study in the New England Journal of Medicine.

NSF announces $30 million program in 'Cyber Trust'
The risks of identity theft, e-mail viruses, denial-of-service attacks, system glitches and other online hazards often make the average person's reliance on computer systems more of a leap of faith than a bond of trust.

Timing of IQ test can be a life or death matter
Which year a person's IQ is tested can make the difference between life and death for prisoners and a lifetime of stigma or special services for children.

NASW Science-in-Society Award winners
Illuminating reports about cloning, stem cells and other biomedical topics are among the winning entries in the 2003 Science-in-Society Awards of the National Association of Science Writers (NASW).

Budding viral hijackers may co-opt cell machinery for the getaway
When retroviruses like HIV infect cells, they take over the cell's machinery to manufacture new copies of themselves.

Growth hormone activates gene involved in healing damaged tissue
Growth hormone, known to increase lean body mass and bone density in the elderly, also activates a gene critical for the body's tissues to heal and regenerate, research at the University of Illinois at Chicago shows.

Media Advisory 1 - 2004 Ocean Sciences Meeting
The 12th biannual Ocean Sciences Meeting will feature nearly 1,300 oral and poster presentations in over 100 sessions.

Univ. of Mich. researchers reduce interference from microwave ovens
Researchers at the University of Michigan College of Engineering have developed an elegantly simple technique that dramatically reduces the interference microwave ovens create in telephones and wireless computer networks.

Aging: The continuous process from birth to death
A special series,

Altered cyclin E protein leads to genetic instability in breast cancer
Researchers at The University of Texas M. D. Anderson Cancer Center have found a protein linked to poor outcome in breast cancer is often associated with genetic instability and increased resistance to endocrine therapy.

Keeping grandma safe and healthy with biosensors
Keeping Grandma safe and healthy may someday be as simple as using a tiny sensor that can reliably track her movements.

Nicotine patch may alleviate 'senior moments'
The nicotine patches that help smokers quit might also boost the recall of seniors with the mildest form of memory loss, according to results of a preliminary clinical trial on 11 people conducted at Duke University Medical Center.

Freezing technique kills majority of small malignant breast cancers
A technique already used to freeze and kill benign breast masses also appears to kill small malignant breast tumors, new research shows.

Planet Mars from 5.5 million kilometres
This picture (copyright ESA) was taken on 1 December 2003 from ESA's Mars Express spacecraft by the High Resolution Stereo Camera (HRSC) under the responsibility of the Principal Investigator Prof.

Breast conserving therapy offers good outcome if criteria are met
The largest single-institution study of its kind has found that breast conserving therapy after neoadjuvant chemotherapy offers a good outcome as long as patients meet a certain profile, say researchers from The University of Texas M.

A human hormone, combined with a full stomach, offers clues for understanding our food intake
A new study explores the link between gastric distension in humans, the effects of the hormone cholecystokin (CCK), and the relationship to food intake reduction.

UCLA study sheds new light on island evolution
Evolution of genetically distinct species that live exclusively on land can be slowed by over-water dispersal following tropical storms, according to a UCLA study.

Utah's redrock may have changed global climate
A University of Utah study suggests that Navajo Sandstone -- one of Utah's famed redrock formations -- once may have harbored vast amounts of hydrocarbons, likely natural gas (methane).

New fossils from Ethiopia open a window on Africa's 'missing years'
An international team of researchers has announced the discovery of new fossils from the highlands of Ethiopia.

With optical 'tweezers,' researchers pinpoint the rhythmic rigidity of cell skeletons
Using lasers to achieve a resolution of 0.5 microns, Lehigh University scientists can

Findings offer clue to how molecule can both stimulate, suppress cell growth
Scientists are puzzled by the fact that the molecule known as transforming growth factor-beta (TGF-b) generally stops cells from multiplying but at other times promotes cell growth.

Collective economy: A means for reducing inequality
An IRD economist has looked into the forms of development and the important issues emerging around the collective, mutual support based, economy.

Whites, African-Americans better rate medical care experiences when seeing same-race physicians
White and African-American patients who see physicians of the same race rate their medical visits as more satisfying and participatory than do those who see physicians of other races, even when the nature of the conversation in both types of visits is similar, a Johns Hopkins study finds.

WHO accused of huge HIV blunder
Some researchers believe that by downplaying the role of dirty needles in the spread of HIV, the World Health Organisation and UNAIDS could be missing simple measures that could save millions of people worldwide.

New technology enhances lung cancer detection
Lung cancer is rarely diagnosed in its early stages, but new digital technology available at University Hospitals of Cleveland is significantly enhancing a physician's ability to diagnose this deadly disease when it is most treatable.

Students get insider's view of Earth
Blue, red and white waves dance inside a ball-shaped structure on a computer screen, colliding, careening and stretching in peculiar ways.

Pulsar find boosts hope for gravity-wave hunters
Neutron star pairs may merge and give off a burst of gravity waves about six times more often than previously thought, scientists report in today's issue of the journal Nature [4 December].

Brain drain or scientific diaspora?
The report of a collegial expertise review of the scientific diasporas has just been published by the publications division of the Institut de recherche pour le développement.

Childhood sleep-disordered breathing severity related to tonsil size, oropharyngeal volume
A study is the first of its kind to examine sleep-disordered breathing, pharyngeal size and soft tissue anatomy during childhood development.

Surgery without radiation inadequate for DCIS, study reveals
A study by researchers at Dana-Farber Cancer Institute and Brigham and Women's Hospital has found that women who chose not to receive radiation therapy following surgery for Ductal Carcinoma In Situ (DCIS) experienced recurrences at a surprisingly high rate.

Seismic monitors detect physical changes deep within faults
Seismologists have long known that the buildup of forces along fault zones cause the physical properties of rock and sediments to change deep inside the Earth, at the level where earthquakes occur.

Outpatient procedure shrinks benign breast lumps
Breast cryotherapy is a safe, effective and nearly painless office-based procedure that significantly reduces benign breast lumps without damaging breast structure and may be useful in the treatment of breast cancer.

New computerized tool predicts chance of breast cancer's spread
Researchers at Memorial Sloan-Kettering Cancer Center (MSKCC) have developed a new computerized tool called a nomogram that will help patients and their physicians calculate the likelihood of breast cancer spreading beyond the sentinel lymph nodes to additional lymph nodes under the arms (axilla).

Rensselaer to open new Terahertz Research Center
Rensselaer Polytechnic Institute will mark the expansion of its terahertz research facilities with a gathering of pioneers and other experts in the field, for a discussion of the history and promise of this emerging technology.

Radiation treatment is an option for elderly prostate cancer patients
Prostate cancer patients age 80 and older can tolerate external beam radiation therapy.

New catalyst could help diesels meet NOx deadlines
A new catalyst could help auto makers meet the U.S.

Link between alcohol consumption and muscle damage in females
A new study finds increases in muscle mRNA among females -- but not males -- in chronic ethanol exposure.

Anorexia may cause emphysema, study suggests
For the first time, researchers used a new method of assessing computed tomography (CT) scans to analyze the lungs of anorexic patients and found that malnutrition causes is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to