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Science News for June 18, 2007


UI anthropologist, colleagues discover remains of earliest giant panda

The discovery of a pygmy-sized giant panda skull in south China reveals that the modern giant panda has remained largely unchanged for millions of years. The ancient species lived on bamboo shoots and was adapted to eating bamboo early in its development, highlighting its unique dietary specialization.

SourceUniversity of Iowa·JournalProceedings of the National Academy of Sciences·DateJun 18, 2007

Human genetic 'deserts' are teeming with significant life

Researchers discovered previously unknown exons outside annotated genes in human proteins, suggesting complex gene regulation and increasing the risk of disease-causing mutations. This finding has significant implications for medicine, requiring extra caution when studying genetic phenotypes.

SourceEuropean Society of Human Genetics·DateJun 18, 2007
Kestrel 3000 Pocket Weather Meter

Kestrel 3000 Pocket Weather Meter measures wind, temperature, and humidity in real time for site assessments, aviation checks, and safety briefings.

Fat fish put obesity on the hook

Researchers have created a genetic model of obesity in zebrafish, which could lead to the development of new drugs to help people lose weight and keep it off. The study uses a receptor blockage mechanism that is similar to what causes severe obesity in humans.

SourceFederation of American Societies for Experimental Biology·JournalThe FASEB Journal·DateJun 18, 2007

Discovery of the oldest adornments in the world

The discovery of small perforated sea shells in Morocco has pushed back the known origin of bead adornments to 82,000 years ago. The findings suggest that modern humans possessed symbolic thought and cognitive abilities earlier than previously thought.

SourceCNRS·JournalProceedings of the National Academy of Sciences·DateJun 18, 2007

Promising protein may prevent eye damage in premature babies

A team of researchers from the University of Florida and Harvard Medical School has discovered a protein called IGFBP-3 that may help prevent eye damage in premature babies. The protein activates stem cells and other reparative cells, which could stabilize existing blood vessels and prevent abnormal growth.

SourceUniversity of Florida·JournalProceedings of the National Academy of Sciences·DateJun 18, 2007

Candy cigarettes: Bringing the candy man home

A new study in Preventive Medicine reveals that candy cigarettes can favorably set the minds of some children towards becoming future cigarette smokers. Children who played with candy cigarettes were more likely to become adult smokers than those who never consumed them.

SourceElsevier·JournalPreventive Medicine·DateJun 18, 2007
SAMSUNG T9 Portable SSD 2TB

SAMSUNG T9 Portable SSD 2TB transfers large imagery and model outputs quickly between field laptops, lab workstations, and secure archives.

Bacterial pneumonia patients at increased risk of major heart problems

Patients hospitalized with bacterial pneumonia face a higher risk of new or worsening heart problems, with nearly 20% experiencing a heart attack or major heart condition. The presence of heart disease significantly increased mortality from pneumonia.

SourceInfectious Diseases Society of America·JournalClinical Infectious Diseases·DateJun 18, 2007

Sex, drugs and dating make teens feel older

A Canadian study found that behaviors like dating, substance use, and sexual activity make teens feel older than they are. The gap widens as adolescents get older, with girls more likely to feel older than boys.

SourceUniversity of Alberta·JournalJournal of Adolescence·DateJun 18, 2007

Preventing fractures in men -- Making the most of limited flu vaccine stocks

A study published in PLOS Medicine found that men who participate in sports or vigorous physical activity are less likely to suffer from osteoporotic fractures. The researchers analyzed data from over 2,000 men and found that those with higher levels of physical activity had a significantly lower risk of fractures. By taking exercise, ...

SourcePLOS·JournalPLOS Medicine·DateJun 18, 2007

Researchers discover 'acquired' DNA key to certain bacterial infection

A team of researchers from Oregon State University has discovered a unique genetic material acquired through evolution that allows Mycobacterium avium to infect human tissue cells. This 'island' of genetic material enables the bacterium to evade the body's immune response, compromising immunity in patients with lung infections and AIDS.

SourceOregon State University·JournalProceedings of the National Academy of Sciences·DateJun 18, 2007
GQ GMC-500Plus Geiger Counter

GQ GMC-500Plus Geiger Counter logs beta, gamma, and X-ray levels for environmental monitoring, training labs, and safety demonstrations.

Medical metal detector finds 'lost' orthopedic screws

A team of Johns Hopkins undergraduates has invented a handheld metal detector to aid in the removal of orthopedic screws from patients' bodies. The device emits a tone that rises in pitch as the surgeon moves closer to the screw, guiding them to hidden hardware.

SourceJohns Hopkins University·DateJun 18, 2007

Researchers identify protein pathway involved in Parkinson disease development

A novel signaling pathway has been identified as being altered by genetic mutations in Parkinson's disease, affecting cellular function and potentially leading to new therapeutic targets. The research found that mitochondrial protein PINK1 plays a crucial role in protecting cells from oxidative stress and promoting cell survival.

SourceEmory Health Sciences·JournalPLOS Biology·DateJun 18, 2007

Multidisciplinary approach to treatment of heart attacks a success

A multidisciplinary team approach has successfully treated acute heart attacks by expediting patients to specialized treatment centers within 90 minutes. This program evaluation demonstrates improved outcomes for ST-segment elevation myocardial infarction patients in Canada.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJun 18, 2007

Burning fat and carbohydrate during exercise

During exercise, muscles primarily use carbohydrate and fat as fuels, shifting from fat to glucose with increasing intensity. The study found that adaptations in the rest of the body, not muscle itself, drive this shift.

SourceBlackwell Publishing Ltd.·JournalThe Journal of Physiology·DateJun 18, 2007
GoPro HERO13 Black

GoPro HERO13 Black records stabilized 5.3K video for instrument deployments, field notes, and outreach, even in harsh weather and underwater conditions.

A safer food supply -- Sandia and FDA to make it so

The CARVER + Shock program provides interactive questions to help food-processing companies identify vulnerabilities in their supply chain. The tool, developed by Sandia National Laboratories and the FDA, enables companies to evaluate their risk and protect their products.

SourceDOE/Sandia National Laboratories·DateJun 18, 2007

Restricting hospital-based services during SARS outbreak had modest impact

A study in Toronto found that restricting non-urgent hospital use during the 2003 SARS outbreak resulted in a 12% decrease in admissions. This reduction would only offset one-quarter of expected additional admissions in an influenza pandemic, highlighting potential limitations on future epidemic capacity.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJun 18, 2007

Tip sheet Annals of Internal Medicine, June 19, 2007

Women with diabetes experienced a decline in death rates, but at a cost: their bone density and endometrial thickness may have increased. In contrast, a study on soy products found that genistein supplements boosted bone mineral density and improved markers of bone metabolism.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateJun 18, 2007
Aranet4 Home CO2 Monitor

Aranet4 Home CO2 Monitor tracks ventilation quality in labs, classrooms, and conference rooms with long battery life and clear e-ink readouts.

UT medical researcher determines link between foie gras and disease

Researchers discovered a link between consuming foie gras and the formation of amyloid fibrils, which can accelerate AA amyloidosis in susceptible mice. The study suggests that people with a family history of diseases like Alzheimer's and rheumatoid arthritis may want to avoid consuming foie gras.

SourceUniversity of Tennessee at Knoxville·JournalProceedings of the National Academy of Sciences·DateJun 18, 2007

UCF nanoparticle offers promise for treating glaucoma

Researchers have developed a unique nanoparticle that can safely deliver a compound to the eye, blocking an enzyme that contributes to glaucoma. This non-toxic tool offers high penetration rates and little patient discomfort, making it a promising treatment option.

SourceUniversity of Central Florida·JournalThe Journal of Physical Chemistry C·DateJun 18, 2007
Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Nanotube adhesive sticks better than a gecko's foot

Scientists developed a flexible patch that can stick and unstick repeatedly like a gecko foot, featuring carbon nanotube hairs for improved properties. The material has potential applications in robotics, electronic devices, and outer space.

SourceRensselaer Polytechnic Institute·JournalProceedings of the National Academy of Sciences·DateJun 18, 2007

Fever after smallpox vaccination tied to individual genetic variations

Researchers identified common DNA variations that underlie susceptibility to fever after smallpox vaccination. Eight genetic alterations increased the likelihood of fever, while a few reduced it. The study raises the possibility that these genetic variations may also influence fever risk after other live-virus vaccines.

SourceWashU Medicine·JournalThe Journal of Infectious Diseases·DateJun 18, 2007

Autistic children recognize stereotypes based on race and sex

Research reveals that autistic children can learn and apply social stereotypes, including those based on race and sex, despite difficulties with theory of mind development. This finding suggests that different cognitive mechanisms may be at play for understanding social categories versus mental states.

SourceCell Press·JournalCurrent Biology·DateJun 18, 2007

Autistic children could learn through stereotypes

Scientists at University College London discovered that autistic children can understand people's behavior based on stereotypes, such as gender and race. This ability can be used to aid their learning and socialization, and may even help them integrate better into society.

SourceUniversity College London·JournalCurrent Biology·DateJun 18, 2007
Celestron NexStar 8SE Computerized Telescope

Celestron NexStar 8SE Computerized Telescope combines portable Schmidt-Cassegrain optics with GoTo pointing for outreach nights and field campaigns.

Researchers demonstrate way to control tree height

Researchers at Oregon State University have successfully manipulated the growth in height of trees using genetic modification, creating miniature trees that can range from a few inches to over 50 feet tall. The findings offer potential for new products in the ornamental and nursery industries, but regulatory hurdles must be overcome.

SourceOregon State University·DateJun 18, 2007

Evidence lacking to guide treatment for sudden hearing loss

A systematic review and meta-analysis found little to no scientific evidence supporting the use of steroids or other therapies for treating sudden sensorineural hearing loss. The study suggests that systemic steroids may not be the gold standard of treatment due to severe limitations in existing studies.

SourceJAMA Network·JournalArchives of Otolaryngology - Head and Neck Surgery·DateJun 18, 2007

Endosome-mediated signaling in plants

Researchers found endosomes facilitate plant growth through brassinosteroid receptor trafficking, affecting shoot and root growth. This discovery expands understanding of endosome function in plants, shedding light on their evolutionary origins.

SourceCold Spring Harbor Laboratory·JournalGenes & Development·DateJun 18, 2007

Gannet population under threat from global warming

Researchers warn that global warming is forcing gannets to search further afield for food, leaving their chicks vulnerable to attack. The birds' breeding success is declining as they compensate by flying faster, but their speed limit has been reached.

SourceUniversity of Leeds·JournalMarine Ecology Progress Series·DateJun 18, 2007
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Hebrew Rehabilitation Center psychiatrist named Practice Change Fellow

Eran D. Metzger, a psychiatrist at Hebrew Rehabilitation Center, has been named a Practice Change Fellow by The Atlantic Philanthropies to improve mental health care for elderly patients. The program aims to expand the number of health-care leaders who can promote high-quality care to older adults in various organizations.

SourceHebrew SeniorLife Hinda and Arthur Marcus Institute for Aging Research·DateJun 18, 2007

Reconstructing the biology of extinct species: A new approach

A research team has discovered a fundamental adaptive mechanism linking an animal's locomotion to its sensory systems. The study found that the dimensions of the three semicircular canals in the inner ear are linked to the type of movement produced by an animal's limbs.

SourcePenn State·JournalProceedings of the National Academy of Sciences·DateJun 18, 2007

Predicting danger of flu pandemic rests on differences in affected population, says O.R. Forum

A new model predicts the danger of flu pandemics by analyzing population heterogeneity. The study highlights the importance of considering individual attributes such as social interaction and susceptibility to infection. Social distancing measures may be effective in limiting the spread of disease, according to the research.

SourceInstitute for Operations Research and the Management Sciences·JournalOperations Research·DateJun 18, 2007

Arctic spring comes weeks earlier than a decade ago

The Arctic has seen its spring arrive significantly earlier than it did just a decade ago, with flowering dates advancing by up to 30 days in some species. This rapid change is considered one of the clearest signals of biological response to rising temperatures, and offers an early warning of global warming's effects.

SourceCell Press·JournalCurrent Biology·DateJun 18, 2007
Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Does stimulant treatment for ADHD increase risk of drug abuse?

A new study suggests that stimulant treatment for attention-deficit hyperactivity disorder (ADHD) can increase the risk of future drug abuse, with age and treatment duration being key variables. The researchers found that brain chemistry changes associated with longer treatment periods may attenuate the propensity to abuse drugs.

SourceDOE/Brookhaven National Laboratory·DateJun 18, 2007

How 'memory' T cells curb the spread of viruses throughout the body

Researchers at Fox Chase Cancer Center discovered that memory CD8 T cells can protect against viral diseases without migrating to the site of infection. These cells rapidly multiply and kill target cells inside the lymph node, decreasing viral spread to vital organs.

SourceFox Chase Cancer Center·JournalProceedings of the National Academy of Sciences·DateJun 18, 2007

PINK1 protects from Parkinson's

The study reveals a novel anti-apoptotic signaling pathway disrupted by PINK1 mutations, suggesting a potential target for therapeutic intervention in Parkinson's disease. Increasing evidence links single-copy mutations in PINK1 to the development of later-onset PD.

SourcePLOS·JournalPLOS Biology·DateJun 18, 2007

Prostate specific antigen: A review of PSA use in screening for prostate cancer

A recent review examines the evidence supporting PSA testing for prostate cancer screening. Despite controversy over its effectiveness, many Canadian men are being tested due to widespread practice. The article also discusses finasteride's potential in reducing enlarged prostate risks and cancer risk.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateJun 18, 2007
Nikon Monarch 5 8x42 Binoculars

Nikon Monarch 5 8x42 Binoculars deliver bright, sharp views for wildlife surveys, eclipse chases, and quick star-field scans at dark sites.

Clot-dissolving agent may be beneficial in treatment of severe frostbite

A preliminary study suggests that administering a blood clot-dissolving medication within 24 hours of severe frostbite injury can significantly reduce the risk of amputation. The treatment, tissue plasminogen activator (tPA), has been shown to improve blood flow and prevent cell death in affected limbs.

SourceJAMA Network·JournalArchives of Surgery·DateJun 18, 2007

Women with diabetes left behind in drop in death rates

The study found that the death rate for men with diabetes declined by 43% between 1971 and 2000, while the death rate for women with diabetes did not change. The authors suggest that different approaches may be needed to improve health outcomes for women with diabetes.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·DateJun 18, 2007