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Science News for May 18, 2011


Preventing the spread of HIV/AIDS with humanized BLT mice

Humanized BLT mice, created with human bone marrow, liver, and thymus tissues, have been shown to reproduce the design of a recent clinical study on topical microbicide tenofovir. The results demonstrate 88% protection against vaginal HIV transmission, warranting consideration for future testing in people.

SourceUniversity of North Carolina Health Care·JournalJournal of Virology·DateMay 18, 2011
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

New cell therapy to prevent organ rejection

Researchers at King's College London have developed a new approach using immune cells to prevent organ rejection. The 'specific' Tregs can regulate only the activity of effector cells that would target a transplanted organ, leaving the remaining effector cells to function normally.

SourceKing's College London·JournalScience Translational Medicine·DateMay 18, 2011

Carbon black nanoparticles can cause cell death

Researchers found that carbon black nanoparticles activated a double source of inflammation in the lungs, causing immune cells to die and leading to a secondary inflammatory response. The study suggests environmental exposures to diesel exhaust or printer ink could contribute to lung inflammation.

SourceUniversity of Iowa Health Care·JournalJournal of Biological Chemistry·DateMay 18, 2011

Young graphite in old rocks challenges the earliest signs of life

Researchers found carbon-based minerals in ancient Canadian rocks to be millions of years younger than the rock itself, questioning earlier timelines for biological life's emergence. The discovery suggests that carbon may have been introduced into the rock at a later stage, potentially altering our understanding of the Earth's evolution.

SourceBoston College·JournalNature Geoscience·DateMay 18, 2011
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.

When rising PSA means prostate cancer is in patient's future

A new study shows that nearly 70% of men with rising PSA levels and subsequent normal biopsies were eventually diagnosed with prostate cancer. Rising PSA velocity over several years should prompt clinicians to follow patients more closely, even with negative biopsy results.

SourceNorthwestern University·DateMay 18, 2011

From gene to protein -- new insights of MDC researchers

Studies by MDC researchers have comprehensively quantified gene expression for the first time, revealing that protein production is mainly controlled in the cytoplasm. This discovery highlights where gene expression can get out of control and may provide key insights into diseases such as cancer.

SourceHelmholtz Association·JournalNature·DateMay 18, 2011
Apple iPhone 17 Pro

Apple iPhone 17 Pro delivers top performance and advanced cameras for field documentation, data collection, and secure research communications.

High pregnancy weight gain can lead to long-term obesity

Researchers found that women who gained more than the recommended weight during pregnancy were three times as likely to be overweight or obese. Regular monitoring of weight in pregnancy may need to be reconsidered to prevent these health problems.

SourceUniversity of Bristol·JournalAmerican Journal of Clinical Nutrition·DateMay 18, 2011

Dairy consumption does not elevate heart-attack risk, study suggests

A new study published in Nutrition, Metabolism and Cardiovascular Diseases found that high levels of saturated fat in dairy products do not increase the risk of heart attack. Instead, other nutrients in dairy products, such as calcium and conjugated linoleic acid (CLA), may have protective effects against heart disease.

SourceBrown University·DateMay 18, 2011

Rainbows without pigments offer new defense against fraud

Researchers at the University of Sheffield have developed pigment-free polymer materials that exhibit intense, colorful patterns. These materials are difficult to copy and could provide a new anti-counterfeit solution for passports and banknotes.

SourceUniversity of Sheffield·JournalSoft Matter·DateMay 18, 2011
DJI Air 3 (RC-N2)

DJI Air 3 (RC-N2) captures 4K mapping passes and environmental surveys with dual cameras, long flight time, and omnidirectional obstacle sensing.

'Critical baby step' taken for spying life on a molecular scale

Researchers developed a novel technique to image single biological molecules in living cells using diamond's nitrogen vacancy defect. This breakthrough could lead to new tools for diagnosing and treating diseases like cancer, with potential to reveal the inner workings of life on the molecular scale.

SourceIOP Publishing·JournalNew Journal of Physics·DateMay 18, 2011

Researchers home in on genetic signature of esophageal cancer

Researchers at University of Rochester Medical Center have identified two genes, CDK6 and CDK4, that are amplified in the worst cases of esophageal cancer, providing data to support a new investigational treatment. The study found that targeting these genes may halt the growth of cancer cells.

SourceUniversity of Rochester Medical Center·JournalClinical Cancer Research·DateMay 18, 2011
Apple MacBook Pro 14-inch (M4 Pro)

Apple MacBook Pro 14-inch (M4 Pro) powers local ML workloads, large datasets, and multi-display analysis for field and lab teams.

California Energy Commission boosts renewable energy research at UC San Diego

The California Energy Commission is funding $1.4 million in renewable energy research at UC San Diego, including advanced solar forecasting and energy storage systems. The investment will help accelerate the development of clean energy technologies and achieve California's 33% Renewable Energy Portfolio Standard by 2020.

SourceUniversity of California - San Diego·DateMay 18, 2011

New technique sheds light on the mysterious process of cell division

Scientists use new technique to demonstrate that cell membrane and cytoplasm structure can guide asymmetric cell division. Model cells show that simple chemical interactions can result in complex behaviors like asymmetric division even without genetic signals.

SourcePenn State·JournalJournal of the American Chemical Society·DateMay 18, 2011

New technique promises to 'lift the hood’ on autism

A new gene-sequencing study identifies rare de novo mutations in four genes that likely play a causative role in autism. The study suggests that the 'multi-hit' theory of autism may be correct and provides evidence for exome-sequencing as an effective way to discover responsible genes.

SourceSimons Foundation·JournalNature Genetics·DateMay 18, 2011
AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

FIGO's new classification of causes of abnormal uterine bleeding benefits patients

The FIGO PALM-COEIN classification system provides a universally accepted method for classifying abnormal uterine bleeding, facilitating communication among clinicians and researchers. The system categorizes causes of AUB into nine categories, enabling consistent and practical application of medical and surgical therapy.

SourceElsevier Health Sciences·JournalInternational Journal of Gynecology & Obstetrics·DateMay 18, 2011

Virtual workout partners spur better results

Researchers from Michigan State University analyzed the Kohler effect in health video games and found that working out with a virtual partner improves task persistence and reduces social anxiety. The study suggests that incorporating design features based on the Kohler effect could motivate vigorous exercise.

SourceMichigan State University·JournalJournal of Sport and Exercise Psychology·DateMay 18, 2011

Imaging technology reveals intricate details of 49-million-year-old spider

Researchers used X-ray computed tomography to create stunning three-dimensional images of the fossilized spider, revealing it as a member of the Huntsman spiders genus. The study demonstrates that historical pieces of darkened amber can yield vital data when studied by modern techniques.

SourceUniversity of Manchester·JournalZeitschrift für Didaktik der Naturwissenschaften·DateMay 18, 2011

Heart drugs ineffective in treating pulmonary arterial hypertension

A new NIH-funded randomized clinical trial has found that aspirin and simvastatin do not provide benefits to patients with pulmonary artery hypertension. The study, which was conducted at four U.S. medical centers, enrolled 65 patients and showed no significant difference in six-minute walk distance between the treatment groups.

SourceAmerican Thoracic Society·DateMay 18, 2011

Temperature, humidity affect health benefits of green tea powders

A Purdue University study found that higher temperatures and humidity levels can degrade the catechins in green tea powders, reducing their antioxidant properties. The research provides guidelines for storing these powders to maintain their nutritional quality.

SourcePurdue University·JournalJournal of Agricultural and Food Chemistry·DateMay 18, 2011
CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

Lizard fossil provides missing link in debate over snake origins

A 47 million-year-old lizard fossil has provided key findings on the evolutionary relationships between snakes and other reptiles. The study reveals that snakes evolved independently from limbless lizards, rather than sharing a common ancestry with burrowing reptiles.

SourceUniversity of Toronto·JournalNature·DateMay 18, 2011

Electronic medical records lower infant mortality, study finds

A study found that expanded use of electronic medical records would substantially reduce infant mortality in the U.S., saving approximately 16 babies for every 100,000 live births. A complete national transition to electronic records would save an estimated 6,400 infants each year.

SourceUniversity of Chicago Press Journals·JournalJournal of Political Economy·DateMay 18, 2011

Karlsruhe invisibility cloak: Disappearing visibly

Researchers developed a 3D invisibility cloak that guides light waves around an object, making it invisible to the human eye. The cloaking material is structured in the nanometer range and has precisely defined thicknesses, enabling it to manipulate light waves with unprecedented precision.

SourceHelmholtz Association·JournalOptics Letters·DateMay 18, 2011
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.

End of life care for cancer patients differs in US and Canada

End-of-life care for cancer patients varies significantly between the US and Canada, with higher rates of hospital admissions and emergency room visits in Ontario compared to the US. In contrast, US patients receive more chemotherapy, particularly in the last month of life.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateMay 18, 2011

Species extinction rates have been overreported, new study claims

A new study claims that species extinction rates have been overreported by as much as 160%, using widely used methods. However, the global extinction crisis is still very real, according to researchers. The study's findings suggest that habitat loss is not as dire as previously thought, but conservation efforts are still necessary.

SourceUniversity of California - Los Angeles·JournalNature·DateMay 18, 2011
Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Nottingham scientists reveal genetic 'wiring' of seeds

Researchers at the University of Nottingham have discovered a complex genetic mechanism controlling plant germination and flowering. The study reveals genes responsible for stress response are also involved in seed germination, offering insights into adapting crops to extreme environmental conditions.

SourceUniversity of Nottingham·JournalProceedings of the National Academy of Sciences·DateMay 18, 2011

Maternal smoking causes changes in fetal DNA

Research suggests maternal smoking during pregnancy may alter DNA methylation levels in the AXL gene, associated with increased asthma risk in children. The study found a stronger association between maternal smoking and DNA methylation in girls than boys.

SourceAmerican Thoracic Society·DateMay 18, 2011

China fossil shows bird, crocodile family trees split earlier than thought

A 247 million-year-old fossil from China has been reclassified as an archosaur, revealing that the bird and crocodile family trees split earlier than previously thought. The discovery provides new evidence for the evolution of archosaurs and sheds light on the origins of these dominant land vertebrates.

SourceUniversity of Washington·JournalEarth and Environmental Science Transactions of the Royal Society of Edinburgh·DateMay 18, 2011
Sony Alpha a7 IV (Body Only)

Sony Alpha a7 IV (Body Only) delivers reliable low-light performance and rugged build for astrophotography, lab documentation, and field expeditions.

The Earth's core is melting ... and freezing

A new model suggests that heat flow at the core-mantle boundary varies depending on the structure of the overlying mantle, causing localized melting. This phenomenon is linked to plate tectonics and affects the Earth's magnetic field generation.

SourceUniversity of Leeds·JournalNature·DateMay 18, 2011

Marker identifies breast cancer patients likely to respond to tamoxifen

Researchers at Thomas Jefferson University discovered a biomarker Stat5 in breast cancer that predicts patient response to anti-estrogen therapy tamoxifen. Women with active Stat5 have an increased likelihood of responding to the treatment, while those without it are at a higher risk of dying from breast cancer.

SourceThomas Jefferson University·JournalJournal of Clinical Oncology·DateMay 18, 2011

Occupational lung diseases in Iraq and Afghanistan veterans

Researchers and clinicians face challenges in diagnosing and managing occupational lung diseases in veterans returning from Southwest Asia deployments. Key findings include a unique pattern of fixed obstruction in half of cases and clinically-reversible new-onset asthma in most, as well as rare interstitial lung disease.

SourceAmerican Thoracic Society·DateMay 18, 2011
Meta Quest 3 512GB

Meta Quest 3 512GB enables immersive mission planning, terrain rehearsal, and interactive STEM demos with high-resolution mixed-reality experiences.

Standing up to fight

A University of Utah study shows that men can hit with far more force when standing upright than when on all fours, giving tall males a fighting advantage. This supports the theory that bipedalism evolved to allow humans to fight with greater strength, and may explain why women prefer tall men.

SourceUniversity of Utah·JournalPLOS ONE·DateMay 18, 2011

Gambling problem exposed as access grows

A new study by University of Calgary researcher Dr. David Hodgins highlights the growing issue of problem gambling as access to online gambling increases. Problem gamblers often co-occur with other mental health and substance-abuse disorders, and treatment effectiveness is variable.

SourceUniversity of Calgary·JournalThe Lancet·DateMay 18, 2011
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.

Nuclear magnetic resonance with no magnets

Researchers at Berkeley Lab have successfully performed nuclear magnetic resonance (NMR) without the use of magnets, overcoming obstacles like polarization and chemical shifts. This breakthrough enables more portable and cost-effective NMR, with potential applications in medical diagnoses and field analyses.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNature Physics·DateMay 18, 2011

The odds are against ESP

A new study by Rouder and Morey applies a statistical method to Dr. Bem's ESP experiments, finding modest evidence that doesn't support claims of extra-sensory perception. The researchers conclude that the odds are against ESP existing, given the current scientific knowledge.

SourceSpringer·JournalPsychonomic Bulletin & Review·DateMay 18, 2011

Sun protects against childhood asthma

Research suggests that children living in areas with limited sunlight are at higher risk of developing asthma. Vitamin D, synthesized through sun exposure, plays a crucial role in preventing the illness.

SourceSpanish Foundation for Science and Technology·JournalInternational Journal of Biometeorology·DateMay 18, 2011

ASCO releases studies from upcoming annual meeting

New studies released by ASCO highlight advances in cervical cancer screening, ovarian cancer detection, and prostate cancer risk prediction. The studies also explore genetic biomarkers for chemotherapy-induced neuropathy and potential treatments for relapsed ovarian cancer.

SourceAmerican Society of Clinical Oncology·DateMay 18, 2011
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.

Enzyme may drive breast cancer growth

Researchers have identified an enzyme that drives the production of estradiol, a potent form of estrogen, in human breast cancer tissue. The enzyme creates a positive cycle where estradiol sustains its own production, leading to aggressive and potentially deadly cancer types.

SourceUniversity of Illinois Chicago·DateMay 18, 2011

Astronomer Bennett's team discovers new class of planets

Bennett's team found 10 free-floating planets roughly the mass of Jupiter, suggesting planetary systems often become unstable, ejecting planets from their orbits. The discovery confirms that free-floating planets exist and are quite common, estimated to be twice as many as stars.

SourceUniversity of Notre Dame·JournalNature·DateMay 18, 2011

New treatment regimen shows clinical benefit in advanced colon cancer

A new treatment combination of a PARP inhibitor with chemotherapy offered significant benefit in patients with metastatic colon cancer who had exhausted all standard therapies. The study found that the treatment controlled cancer growth for nearly six months in 23% of patients, with two experiencing a partial response.

SourceGeorgetown University Medical Center·DateMay 18, 2011

Teachers need greater awareness of language disorders

Children with specific language impairment (SLI) face difficulties with language, grammar, vocabulary, literacy, short-term memory, and higher-order thinking skills. Teachers can employ various techniques to help them learn more effectively.

SourceEconomic & Social Research Council·DateMay 18, 2011
Apple iPad Pro 11-inch (M4)

Apple iPad Pro 11-inch (M4) runs demanding GIS, imaging, and annotation workflows on the go for surveys, briefings, and lab notebooks.

Not all viewers of Arab TV networks develop anti-American feelings

A new study suggests that Arab television networks such as Al Jazeera do not promote anti-American feelings among all their viewers. Research based on surveys of nearly 20,000 residents of six Arab countries found that while watching networks like Al Jazeera fuels anti-American feelings in some viewers, it actually reduces such sentime...

SourceOhio State University·JournalCommunication Research·DateMay 18, 2011

Potentially toxic flame retardants detected in baby products

Scientists have detected potentially toxic flame retardants in 80% of baby products containing polyurethane foam. The study reveals compounds associated with pentaBDE, a substance banned in many countries due to health risks, as well as two potential carcinogens.

SourceAmerican Chemical Society·JournalEnvironmental Science & Technology·DateMay 18, 2011

Artificial tissue promotes skin growth in wounds

Researchers at Cornell University have developed dermal templates made of type 1 collagen that promote vascular growth and encourage healthy skin to invade wounded areas. The templates are designed to improve healing outcomes and reduce the need for invasive surgeries.

SourceCornell University·JournalBiomaterials·DateMay 18, 2011
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.

UCSF team discovers key to fighting drug-resistant leukemia

Researchers at UCSF have identified BCL6, a protein that leukemia cells use to survive treatment, as the basis for drug resistance. Targeting this protein may lead to more powerful cancer drugs and improved cure rates for children with leukemia.

SourceUniversity of California - San Francisco·JournalNature·DateMay 18, 2011

Breaking the silence on aid workers' salaries

A new international task force aims to promote fair pay and develop organisational capacity in lower-income countries. Research found significant disparities between local and expatriate aid workers' salaries, pushing local employees below the poverty line and contributing to 'brain drain'.

SourceEconomic & Social Research Council·DateMay 18, 2011
Creality K1 Max 3D Printer

Creality K1 Max 3D Printer rapidly prototypes brackets, adapters, and fixtures for instruments and classroom demonstrations at large build volume.

Lack of 'gatekeeper' protein linked to skin cancer

A 'gatekeeper' protein called C/EBP alpha plays a crucial role in preventing DNA damage and skin cancer. Its absence is linked to human skin cancers, including breast and colon cancer, and may also play a role in tumor suppression.

SourceNorth Carolina State University·JournalJournal of Investigative Dermatology·DateMay 18, 2011

Lichens may aid in combating deadly chronic wasting disease in wildlife

USGS research suggests that certain lichens can break down the infectious proteins responsible for chronic wasting disease, a prion disease fatal to wild deer and elk. The study found that some lichen species contain a protease enzyme capable of significantly breaking down prions in the lab.

SourceU.S. Geological Survey·JournalPLOS ONE·DateMay 18, 2011

Radiation protection expert criticizes comparison of Fukushima to Chernobyl

Professor Richard Wakeford critiques the comparison of Fukushima Dai-ichi Nuclear Power Station to Chernobyl, highlighting key differences in radiological hazard and Japanese authorities' response. He notes that lessons learned from Chernobyl have guided actions taken in Fukushima, including evacuation zones and iodine tablets.

SourceIOP Publishing·JournalJournal of Radiological Protection·DateMay 18, 2011

Study identifies more cost-effective immune suppressant for transplants

Researchers found that alemtuzumab is as safe and effective as basiliximab or antithymocyte globulin in preventing organ rejection after kidney transplant. The study's results suggest that the less expensive drug option could lead to cost savings without compromising patient outcomes.

SourceUniversity of Alabama at Birmingham·JournalNew England Journal of Medicine·DateMay 18, 2011
Davis Instruments Vantage Pro2 Weather Station

Davis Instruments Vantage Pro2 Weather Station offers research-grade local weather data for networked stations, campuses, and community observatories.

Columbia researchers work to prevent blindness from age-related macular degeneration

Researchers at Columbia University Medical Center have discovered a modified form of vitamin A that slows the formation of detrimental dimers, leading to improved vision and ocular health in mice with Stargardt's disease. The study provides hope for treating age-related macular degeneration and Stargardt's disease.

SourceColumbia University Irving Medical Center·JournalJournal of Biological Chemistry·DateMay 18, 2011