Brightsurf Science News & Current Events

September 26, 2011
South Africa's toxic legacy: Acid mine drainage threatens water supplies
In the Witwatersrand goldfields, not far from bustling Johannesburg, South Africa, more than a century of mining has left the region littered with mounds of waste and underlain by a deep underground network of abandoned mine shafts, which are gradually filling with water.

Compound kills highly contagious flu strain by activating antiviral protein
A compound tested by University of Texas Southwestern Medical Center investigators destroys several viruses, including the deadly Spanish flu that killed an estimated 30 million people in the worldwide pandemic of 1918.

MAVEN mission primary structure complete
NASA's Mars Atmosphere and Volatile EvolutioN (MAVEN) mission has reached a new milestone.

Learning and remembering linked to holding material in hands, new research shows
New research from the University of Notre Dame shows that people's ability to learn and remember information depends on what they do with their hands while they are learning.

Is gallows humor in medicine wrong?
Doctors and other medical professionals occasionally joke about their patients' problems.

Researchers at Cruces Hospital describe new syndrome of slight family intellectual disability
The team led by geneticist Isabel Tejada at the Cruces Hospital described for the first time to the world that the duplication of the RPS6KA3 gene produces a limited intellectual disability in asymptomatic mothers who are carriers.

Hip fracture is associated with increased short-term death rates for some older women
Hip fracture is associated with an increase in short-term mortality (death within one year) for women ages 65 to 79 years and healthy women ages 80 years and older, although the risk returns to previous levels after one year for women ages 70 years and older, according to a report published online first by Archives of Internal Medicine, one of the JAMA/Archives journals.

Research leads to enhanced kit to improve design and processing of plastics
The National Physical Laboratory (NPL) has developed a world-leading pvT (pressure-volume-temperature) and thermal conductivity test kit.

'Illusion of plenty' masking collapse of 2 key Southern California fisheries
A Scripps-led study found that overfishing of spawning areas and environmental conditions are behind the collapse of two bass species.

What can magnetic resonance tractography teach us about human brain anatomy?
Magnetic resonance tractography (MRT) is a valuable, noninvasive imaging tool for studying human brain anatomy and, as MRT methods and technologies advance, has the potential to yield new and illuminating information on brain activity and connectivity.

Sneaking up on the glassy transition of water
Researchers claim to have settled a long-standing debate over the exact temperature at which water transforms into an exotic glass-like substance believed to be present in comets and other icy objects in the outer solar system, as well as in the coldest regions of the Earth's atmosphere.

Structure of a molecular copy machine
Mitochondria are compartments within cells and have their own DNA.

Low vitamin B12 levels may lead to brain shrinkage, cognitive problems
Older people with low blood levels of vitamin B12 markers may be more likely to have lower brain volumes and have problems with their thinking skills, according to researchers at Rush University Medical Center.

Empowering power systems: Researchers light up possibilities with solar panel based design
A team of eight researchers at Kansas State University is using renewable energy to generate an agile power distribution system and transform the industry.

National leader in nurse midwifery to present award
Holly P. Kennedy, CNM, FACM, the president of the American College of Nurse-Midwives (ACNM), returns to her Rhode Island roots to present a

Wanna save? Keep it simple, says paper from Rotman School of Management
If one savings goal is a good thing, two or more should be great, right?

IMRT has less harmful rectal side effects than 3D-CRT for prostate cancer patients
Men with localized prostate cancer treated with a newer technology, intensity modulated radiation therapy (IMRT), have more than a quarter (26 percent) fewer late bowel and rectal side effects and a statistically improved lower dose of radiation to the bladder and rectum, compared to those who undergo 3D-CRT, according to a randomized study presented at the plenary session Oct.

New genetic region responsible for testicle development found
New research presented today at the European Society for Pediatric Endocrinology meeting has found a genetic region, which may control testicle development in the fetus.

New study adds further guidance on when to start antiretroviral therapy for HIV
A new study led by researchers at the University of North Carolina at Chapel Hill finds that there may be a limit to how early highly active antiretroviral therapy, known as HAART, should start.

Rhode Island Hospital researchers find possible cardiovascular risk with NSAID use
A new study from Rhode Island Hospital researchers suggests that controlling cholesterol may be important for heart health in patients who are taking non-steroidal anti-inflammatory drugs (NSAIDs) such as naproxen.

Cell dysfunction linked to obesity and metabolic disorders
By measuring the radioactive isotope carbon-14, scientists at Karolinska Institutet have revealed an association between lipid cell dysfunction and diseases such as obesity, diabetes and blood lipid disorders.

How graphene's electrical properties can be tuned
Graphene is ideally suited for creating components for semiconductor circuits and computers.

NASA's infrared eyes examine Tropical Depression Haitang as it nears Vietnam
Very cold temperatures in NASA infrared satellite imagery of tropical cyclones tell meteorologists that cloud tops are high, and the thunderstorms they're associated with have a lot of punch.

Catalyst discovery has potential to revolutionize chemical industry
University of Alberta Chemistry researchers have discovered a remarkably active catalyst that has the potential to revolutionize the chemical industry.

Innovative mathematician honored at NJIT
Kappraff has coordinated a long-standing university lecture series, known as the Forum on Technology and Society.

5 principles critical to successful nation-building, finds history and global affairs scholar
Jeremi Suri, professor in the Department of History and the Lyndon B.

Breaking chemistry's bad rap
AMC's hit show

Seattle researchers map genome of advanced, lethal prostate cancers and discover 'hypermutation'
A team of researchers at Fred Hutchinson Cancer Research Center and the University of Washington has conducted the first comprehensive assessment of every gene in the genome of advanced, lethal prostate cancer.

Underweight COPD patients at higher risk of death
Patients suffering from chronic obstructive pulmonary disease (COPD) are at a higher risk of death if they are underweight.

Shorter radiation course for prostate cancer is effective in long-term follow-up
A shorter course of radiation treatment that delivers higher doses of radiation per day in fewer days (hypofractionation) is as effective in decreasing intermediate to high-risk prostate cancer from returning as conventional radiation therapy at five years after treatment, according to a randomized trial presented at the plenary session, Oct.

'QB3 Startup In A Box' helps UC entrepreneurs launch companies
Biophysicist Adam Abate showed up seven months late to his new faculty position at UCSF with an unusual excuse: he was busy setting up the technology for a new company based on one of the 10 patents he had received as a postdoctoral scholar at Harvard University.

WPI mathematics professor Dalin Tang elected a Fellow of the American Heart Association
Dalin Tang, professor of mathematical sciences and biomedical engineering at Worcester Polytechnic Institute, has been elected a fellow of the American Heart Association.

AEROCOINs seeks the development of new superinsulating materials for the construction sector
AEROCOINs, an FP7 project coordinated by Tecnalia Research and Innovation, proposes to create a new superinsulating material by overcoming the two major obstacles which have prevented a wide-spread use of silica-based aerogel super-insulation components in buildings and construction.

'Next-generation' optical tweezers trap tightly without overheating
Engineers at Harvard have created a device that may make it easier to isolate and study tiny particles such as viruses.

Diabetics' coronary calcium levels strongly linked to heart attack risk
Notable levels of calcium buildup in coronary arteries can be strong predictors of heart attacks and strokes in people with diabetes and metabolic syndrome, according to a study led by UC Irvine's Heart Disease Prevention Program.

Researchers develop optimal algorithm for determining focus error in eyes and cameras
University of Texas at Austin researchers have discovered how to extract and use information in an individual image to determine how far objects are from the focus distance, a feat only accomplished by human and animal visual systems until now.

High blood pressure is linked to increased risk of developing or dying from cancer
Raised blood pressure is linked to a higher risk of developing cancer or dying from the disease according to the findings of the largest study to date to investigate the association between the two conditions.

UCLA Engineering researchers help develop complete map of mouse genetic variation
The laboratory mouse has been widely used for research on a variety of diseases and genetic studies to understand which genes are involved in various illnesses.

Predicting prognosis in patients with inflammatory bowel disease
Crohn disease (CD) and ulcerative colitis (UC) are forms of inflammatory bowel disease.

Lower turnover rates, higher pay for teachers who share race with principal, MU study shows
Researchers at the University of Missouri have found that turnover rates are lower among teachers who are of the same race as their school principals.

Stampede charges computational science forward in tackling complex societal challenges
The Texas Advanced Computing Center (TACC) at the University of Texas at Austin today announced that it will deploy and support a world-class supercomputer with comprehensive computing and visualization capabilities for the national open science community.

Boston researchers share in $10 million grant to study HIV and alcohol
Researchers from Boston University Schools of Medicine and Public Health, Boston Medical Center, the University of California, San Francisco, and the University of Pittsburgh, have joined together to examine the consequences of alcohol on HIV disease.

Addiction scientist receives Presidential Early Career Award
Gallo neuroscientist Linda Wilbrecht, Ph.D, receives President's Early Career Award, in recognition of her studies on the effects of drug use and stress on the adolescent brain, aimed at developing strategies to mitigate drug dependence.

NJIT BPA researchers to receive council honor
NJIT researchers Anthony East, Michael Jaffe, Yi Zhang and Luiz Catalani will number among more than 40 inventors and 13 New Jersey companies, universities and the US Army to be honored Nov.

Researchers uncover gene associated with blood cancers
Researchers at the Wellcome Trust Sanger Institute identified a gene frequently mutated in myelodysplasia, one of the most common forms of blood cancer.

Marker for Alzheimer's disease rises during day and falls with sleep
A marker for Alzheimer's disease rises and falls in the spinal fluid in a daily pattern that echoes the sleep cycle, researchers at Washington University School of Medicine in St.

Autism Speaks Autism Treatment Network receives $12 million AIR-P grant
The Autism Speaks Autism Treatment Network has received a $12 million federal grant continuing as the Autism Intervention Research Network on Physical Health supporting clinical research, development of best-practice guidelines, tool kits for families and physicians, and clinician training.

Discovery of insulin switches in pancreas could lead to new diabetes drugs
Researchers at the Salk Institute have discovered how a hormone turns on a series of molecular switches inside the pancreas that increases production of insulin.

Research reveals how dynamic changes in methylation can determine cell fate
Scientists at Cold Spring Harbor Laboratory and the University of Southern California have uncovered intriguing new evidence helping to explain how methylation -- an epigenetic process -- can help determine the ultimate fate of stem cells.

E-textiles get fashion upgrade with memory-storing fiber
In the future when you upgrade your computer you may also be upgrading your wardrobe as researchers create novel new textiles that pull double-duty as fabrics and electronics.

Federal grant creates 'sustainable vehicle systems' center at Clemson University
Clemson University's automotive engineering program has received a $1 million competitive award from the US Department of Energy that will create a center for research and education in

NIH-funded study connects gene variant to response to asthma drugs
A genetic variant may explain why some people with asthma do not respond well to inhaled corticosteroids, the most widely prescribed medicine for long-term asthma control.

Ben-Gurion U researcher's peace-building project awarded USAID grant for $760,000
Over the course of the three years, each participant will share knowledge and explore ways to facilitate reconciliation and forgiveness between their communities.

Boys and their bodies
Male bodies are increasingly objectified by mass media. Consider Michael 'The Situation' Sorrentino, a cast member of MTV's Jersey Shore reality show, who garnered fame by flashing his chiseled abs before cameras.

Newly identified DNA repair defect linked to increased risk of leukemia relapse
A newly identified defect in a DNA repair system might leave some young leukemia patients less likely to benefit from a key chemotherapy drug, possibly putting them at greater risk of relapse.

Researchers discover gene that is mutated in some blood cancers and predicts better survival
Geneticists have discovered that a gene involved in the modification of ribonucleic acid is mutated in a significant proportion of people with a collection of blood cancers called myelodysplastic syndromes.

Journalists prefer Twitter, according to a UC3M study
Research carried out by professors at Universidad Carlos III de Madrid analyzing how Spanish journalists use the main social networks shows that Twitter is the most widely used, particularly to disseminate information.

Many roads lead to Asia
Contrary to what was previously assumed, modern humans may have populated Asia in more than one migration wave.

Award-winning research points toward Alzheimer's vaccine
An accomplice to the protein that causes plaque buildup in Alzheimer's disease is the focus of a potential new treatment, according to research by a Georgia Health Sciences University graduate student.

Interactive mobile app from UCSF and QuantiaMD teaches people how to manage diabetes
A new interactive mobile phone app called DiabetesIQ, released this week, challenges people to test their knowledge of diabetes and to compete with one another as they learn about the complexities of the disease, which affects more than 25 million Americans, including 4 million Californians.

TU Delft: cheap and efficient solar cell made possible by linked nanoparticles
Researchers of the Chemical Engineering department and the Kavli institute of Delft University of Technology in the Netherlands have demonstrated that electrons can move freely in layers of linked semiconductor nanoparticles under the influence of light.

Dead Sea researchers discover freshwater springs and numerous micro-organisms
Using highly skilled divers and high-tech equipment, BGU sent the team to study the springs they had previously detected.

Bone drug is mixed blessing for breast cancer patients
A drug used to protect bone may extend survival in older breast cancer patients, according to researchers at the Universities of Sheffield and Leeds.

2-dimensional learning
Viewing two-dimensional images of the environment, as they occur in computer games, leads to sustained changes in the strength of nerve cell connections in the brain.

Role of gender in workplace negotiations
A study conducted at Columbia Business School finds that while women fare worse economically than men in many distributive negotiations, including salary negotiations, women do not lack the capability or motivation to bargain effectively.

Company stock prices before public announcements of oncology trial results
Prior knowledge of phase III clinical trials of new drugs and Food and Drug Administration (FDA) regulatory decisions may affect the price of a drug company's stock according to a study published Sept.

Asians fighting alcoholism may benefit from new UCLA study
New UCLA psychology research indicates that Asians who are struggling with alcoholism may especially benefit from naltrexone, one of three medications approved by the US Food and Drug Administration for the treatment of alcoholism.

Could targeting a virus treat a common pediatric brain tumor?
Medulloblastomas are the most common cancerous (malignant) brain tumors in children.

African-American women develop functional challenges earlier than others
While examining self-reported data about the lives of 8,700 older people, a Case Western Reserve University sociologist identified an accelerated rate of reported physical limitations by African American women in their mid-50s and 60s.

New energy in search for future wind
Scientists are taking the first steps to improve estimates of long-term wind speed changes for the fast-growing wind energy sector.

Delivering affordable cancer care in high-income countries: The Lancet Oncology Commission
Around 12 million people are diagnosed with cancer each year, causing 7.5 million deaths.

Non-verbal clues guide doctor-patient relationships, clinical judgments, U-M study finds
Researchers analyzed video recordings of routine checkups and conducted follow-up interviews with participants to help elucidate signals sent and received by doctors and patients.

Scientists model the pathways of pain-blocking meds
Although local anesthetics are commonly used, in many cases scientists still don't understand the finer points of how the drugs act on cell membranes.

Hemlocks still abundant despite adelgid infestations
A recent analysis of two decades of USDA Forest Service Forest Inventory and Analysis (FIA) data shows the live volume of hemlocks in the eastern United States still increasing despite spreading infestations of hemlock woolly adelgid.

New hidden heart attack culprit identified in women
Researchers at the Cardiac & Vascular Institute at NYU Langone Medical Center have identified a hidden culprit in the battle against women's heart disease.

No more tasty surprises
In order to calculate the probability of several extreme events occurring at the same time, three scientists at the RUB have developed a new method.

NASA sees Typhoon Nesat nearing landfall in northern Philippines
NASA's Terra satellite saw the western edges of Typhoon Nesat brushing the eastern Philippines yesterday as Luzon prepares for a landfall today.

Location matters: For invasive aquatic species, it's better to start upstream
Scientists from the University of Georgia, University of New Hampshire, Smithsonian Environmental Research Center and University of Vermont studied populations of European green crab, Carcinus maenas.

White House announces that 2 UCSB faculty members will receive US presidential science awards
President Obama today named two UC Santa Barbara faculty members as recipients of the Presidential Early Career Award for Scientists and Engineers.

MU researchers find new insight into fatal spinal disease
Researchers at the University of Missouri have identified a communication breakdown between nerves and muscles in mice that may provide new insight into the debilitating and fatal human disease known as spinal muscular atrophy.

New UNC Center for Diabetes seeks to reduce health disparities
The University of North Carolina at Chapel Hill has received a $3 million, five-year grant from the National Institute of Diabetes and Digestive and Kidney Diseases to establish the UNC Center for Diabetes Translation Research to Reduce Health Disparities.

More frequent office visits associated with improvements in risk factors for patients with diabetes
Visiting a primary care clinician every two weeks was associated with greater control of blood glucose, blood pressure and cholesterol levels among patients with diabetes, according to a report in the Sept.

A treatment for one form of albinism?
Individuals with oculocutaneous albinism, type 1 (OCA1) have white hair, very pale skin, and light-colored irises.

Wayne State researcher developing treatments for Parkinson's with aid of $2.15 million NIH grant
A Wayne State University professor is leading research efforts to develop new treatment options to slow the progression of Parkinson's disease, a neurodegenerative disorder that affects nearly six million people around the world, with 50,000 to 60,000 new cases diagnosed in the United States alone each year.

JCI online early table of contents: September 26, 2011
This release contains summaries, links to PDFs, and contact information for papers to be published September 26, 2011, in the JCI: A treatment for one form of albinism?; Could targeting a virus treat a common pediatric brain tumor?; Predicting prognosis in patients with inflammatory bowel disease; Rare genetic disease yields insight into biology of cells affected in diabetes; and Linking independent risk factors for atherosclerosis.

New method cleans up textile industry's most dangerous chemicals
Textile dying is one of the most environmentally hazardous aspects of the textile industry.

Copper film could lower touch screen, led and solar cell costs
Copper nanowires may be coming to a little screen near you.

Chemo plus radiation before surgery increases tumor response for rectal cancer
Rectal cancer patients who use a new combination of the chemotherapy, Capecitabine, together with five weeks of radiation (50 Gy) before surgery have an 88 percent chance of surviving the cancer three years after treatment, according to randomized trial presented at the plenary session, Oct.

Amphibians: Beware young beetles' deadly 'siren call'
Gil Wizen of Tel Aviv University says that beetle larvae

Study shows decisions over life-sustaining treatment are likely to change
Patients with chronic conditions are likely to change their preferences for receiving emergency procedures in the event of cardiac arrest, according to new findings.

President honors UCI's Rommie Amaro with Early Career Award
Rommie Amaro, UC Irvine assistant professor of pharmaceutical sciences and computer science, has been selected by President Obama for the Presidential Early Career Award for Scientists & Engineers.

Stronger tobacco control policy in the Netherlands would save thousands of lives
A new study shows that 145,000 deaths could be averted in the next 30 years in the Netherlands by implementing stronger tobacco control policies.

NASA sees Hurricane Hilary's heaviest rain in northwest quadrant
Hurricane Hilary pulled away from the western Mexico coastline this weekend, and NASA's TRMM satellite has monitored its rainfall.

Increased caffeinated coffee consumption associated with decreased risk of depression in women
The risk of depression appears to decrease for women with increasing consumption of caffeinated coffee, according to a report in the Sept.

Glow-in-the-dark millipede says 'stay away'
A UA-led team of entomologists has unraveled the mystery of the world's only millipedes that glow in the dark.

Fruits and vegetables reduce risks of specific types of colorectal cancers
The effects of fruit and vegetable consumption on colorectal cancer (CRC) appear to differ by site of origin.

Women who break a hip at increased risk of dying within a year
Women ages 65-69 who break a hip are five times more likely to die within a year than women of the same age who don't break a hip, according to a Kaiser Permanente Center for Health Research study funded by the National Institutes of Health and published online today in the Archives of Internal Medicine.

NIH awards $5.5 million grant to Weill Cornell for research into preventing spina bifida
The National Institutes of Health has awarded a five-year, $5.5 million Transformative Research Project Award to fund research into risk factors for spina bifida and related congenital defects in which an area of the affected baby's spine or brain is not fully enclosed.

Couples counseling helps improve the sex lives of prostate cancer survivors and their spouses
Both internet-based counseling programs and face-to-face therapy sessions for couples improve the sex lives of prostate cancer survivors and their spouses.

Bone experts to present strategies for osteoporosis prevention and care in Dubai
The 1st Middle-East & Africa Osteoporosis Meeting, to be held from Oct.

New evidence highlights risk of comorbidities for COPD patients
A new study has shown that people with chronic obstructive pulmonary disease (COPD) or people with reduced lung function are at a serious risk of developing cardiovascular disease.

Pregnant women who exercise protect their offspring against long-term neurodegenerative diseases
If you are pregnant, here's another reason to work out: you will reduce the chances of your baby developing neurodegenerative diseases, such as Alzheimer's, later in life.

Study of bees links gene regulatory networks in the brain to behavior
A new study reveals that distinct networks of genes in the honey bee brain contribute to specific behaviors, such as foraging or aggression, researchers report.

Chemotherapy during pregnancy does not seem to cause developmental problems in children
Children born after their mothers were treated with chemotherapy during pregnancy appear to be unaffected by the experience in terms of the development of their mental processes and the normal functioning of their hearts.

Couples counseling improves sexual intimacy after prostate treatment
Prostate cancer survivors and their partners experience improved sexual satisfaction and function after couples counseling, according to research at the University of Texas MD Anderson Cancer Center.

Elderly patients may be undertreated for prostate cancer
It's an ongoing debate: should men over a certain age be treated for prostate cancer?

A mother's occupation while pregnant can cause asthma in children
Mothers who are exposed to particular agents during pregnancy could give birth to children with a higher risk of asthma, according to new research.

Increased risk of bleeding with combined use of SSRIs and antiplatelet therapy after heart attacks
Heart attack patients taking selective serotonin reuptake inhibitors (SSRIs) in combination with antiplatelet therapy -- acetylsalicylic acid (ASA), clopidogrel or both (dual antiplatelet therapy) -- are at higher risk of bleeding than patients taking ASA alone, according to a study in CMAJ.

President to honor high achieving, early career NOAA scientists
Three NOAA scientists named recipients of Presidential Early Career Award for Scientists and Engineers.

Congress must protect funds for aging America, advocates say
America's experts on aging are headed for meetings with their senators and representatives to underscore the needs of the country's senior population, spurred by the first-ever Take Action Week organized by the Gerontological Society of America -- the nation's largest interdisciplinary organization devoted to the field of aging.

LSU researchers find impact of oil spill in marsh fish species
A research team led by LSU associate professors of biological sciences Fernando Galvez and Andrew Whitehead has published the results of a combined field and laboratory study showing the effects of the Deepwater Horizon oil spill on fish living in Louisiana marshes.

Low vitamin B12 levels may lead to brain shrinkage, cognitive problems
Older people with low levels of vitamin B12 in their blood may be more likely to lose brain cells and develop problems with their thinking skills, according to a study published in the Sept.

Unequal access to cancer care can no longer be tolerated
An expert report from the Lancet Oncology Commission tries to tackle the difficult problem of how to deliver affordable high quality and equitable cancer care in developed countries.

Bold approach could change electronics industry
Two professors from the University of California, Riverside's Bourns College of Engineering have received $1.5 million to study a new approach that could allow the electronics industry to drastically reduce power consumption and increase speed in the next generation of computers

AMRI receives FDA notification on proposed corrective actions
AMRI (NASDAQ: AMRI) today announced the receipt of a letter from US Food and Drug Administration (FDA) regarding its Burlington, Massachusetts aseptic finish-and-fill facility, acquired in June 2010.

Survey shows many US physicians believe their own patients are receiving too much care
A survey of US primary care physicians shows that many believe that their own patients are receiving too much medical care and many feel that malpractice reform, realignment of financial incentives and having more time with patients could reduce pressures on physicians to do more than they feel is needed, according to a report in the Sept.

'Heat-proof' eggs help turtles cope with hot beaches
Research shows that some turtles are naturally heat-tolerant. The study focused on green turtles nesting on Ascension Island, a UK overseas territory in the South Atlantic Ocean.

Stanford urologist finds childless men more at risk of death from cardiovascular disease
The risk of dying from cardiovascular disease is higher for childless men than for fathers, according to a large study led by a researcher at the Stanford University School of Medicine.

Elsevier congratulates editors of Stem Cells: Scientific Facts and Fiction upon receipt of awards
Elsevier, the world-leading publisher of scientific, technical and medical information products and services, congratulates editors Christine Mummery, Ian Sir Wilmut, Anja van de Stolpe, and Bernard Roelen, whose new book, Stem Cells: Scientific Facts and Fiction, has received the British Medical Association Book Award's First Prize in the category of Basic and Clinical Sciences, as well as the BMA Board of Science Award for the Public Understanding of Science.

Prevention of bedsores in long-term care homes cost-effective, study shows
Researchers at the University of Toronto have found that low-tech, inexpensive interventions for bedsores could improve health for long-term care residents and reduce health-care costs for the facilities that house them.

Cell Transplantation study shows bone growth from implanted tooth and dental pulp stem cells
Dental pulp stem cells and stem cells from deciduous teeth can be easily extracted from deciduous teeth, which are routinely lost in childhood and discarded.

New technique maps twin faces of smallest Janus nanoparticles
Vanderbilt chemists have developed the first method that can rapidly and accurately map the surfaces of Janus nanoparticles, tiny particles that possess two chemically distinct faces.

People hospitalized with asthma 'less likely to die from swine flu'
People with asthma who are admitted to hospital with pandemic influenza H1N1 (swine flu) are half as likely to die or require intensive care than those without asthma, according to new research.

2 Berkeley Lab scientists win 2011 Presidential Early Career Award for Scientists and Engineers
President Obama has named two Lawrence Berkeley National Laboratory researchers, theoretical physicist Christian Bauer and condensed-matter physicist Feng Wang, among the 13 Department of Energy scientists who are recipients of the 2011 Presidential Early Career Award for Scientists and Engineers.

Modified vaccine shows promise in preventing malaria
Continuing a global effort to prevent malaria infections, Michigan State University researchers have created a new malaria vaccine -- one that combines the use of a disabled cold virus with an immune system-stimulating gene -- that appears to increase the immune response against the parasite that causes the deadly disease.

Cardiac rehabilitation improves heart rate recovery, boosts survival
Cardiac rehabilitation improves the heart's ability to return to a normal rate after exercise.

Researchers identify new genes that determine breast cancer prognosis
Researchers at Wake Forest Baptist Medical Center have made a discovery that brings them one step closer to being able to better predict which patients have the best chance of surviving breast cancer.

Changing race by changing clothes
Perception of race is altered by cues as simple as the clothes worn.

New flavors emerge from Peruvian cacao collection trip
New cacao types with unique flavors that are distinctly Peruvian have been identified by US Department of Agriculture (USDA) scientists.

Study of Congress: To tweet, or not to tweet, is unrelated to being in the hot seat
Study finds that electoral vulnerability doesn't influence whether members of Congress use Twitter and also explains why Republicans have a majority on Twitter.

Sunspot 1302 continues to turn toward Earth
Behemoth sunspot 1302 unleashed another strong flare on Saturday morning -- an X1.9-category blast at 5:40 am EDT.

Study examining large-scale data of double balloon enteroscopy shows it is safe and effective
A large-scale data review of double balloon enteroscopy over the last decade showed the endoscopic procedure to be safe and effective for detection of diseases of the small intestine. 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