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Science News Archive March 2009


Page 19 of 26

Promising 3-year data: Saving limbs with drug-eluting stents

Researchers found that drug-eluting stents significantly improved patency rates and reduced restenosis in patients with critical limb ischemia. At three years, 60% of treated arteries remained open in the drug-eluting stent group, compared to 10% in the bare-metal stent group.

'Seeing' stem cells helps in fight against peripheral arterial disease

Researchers have successfully tracked and confirmed the survival of stem cells in the body using a firefly-like bioluminescence imaging agent. This innovative technique enables precise targeting of stem cell delivery to specific blood vessels, opening new hope for treating peripheral arterial disease.

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.

Small molecules block cancer gene

Researchers at Baylor College of Medicine identified three small molecules that block the activity of Stat 3, a key enzyme in cancer cell survival. The compounds showed promise in inducing programmed cell death in breast cancer cells, offering new hope for cancer treatment.

Why we hate politics

Leading experts Colin Hay and Gerry Stoker say politics has become 'depoliticised' due to key decisions being handed over to independent bodies. They argue that politicians have lost trust in their ability to govern effectively and in the collective interest, leading to a disenchantment with the conduct of politics.

Nanotech coating could lead to better brain implants to treat diseases

Researchers at the University of Michigan have developed a nanotech coating that can help brain implants operate longer and improve treatment for various diseases. The coating, made of three components, enables electrodes to interface more smoothly with the brain, reducing tissue damage and improving signal transmission.

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.

Study suggests salt might be 'nature's antidepressant'

Researchers found that rats deficient in sodium chloride shied away from pleasurable activities, leading to a potential link between salt cravings and depression. High salt intake contributes to high blood pressure and other health problems, but the study suggests salt may have a mood-elevating effect.

Apple iPhone 17 Pro

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

Noisy workplaces can make workers deaf

A University of Montreal study reveals that over 60% of Quebec's manufacturing sector workers are exposed to noise levels exceeding the norm, increasing work-related accidents and road collisions. Workers with hearing losses face a 7% greater risk of injury.

Tissue-cultured smallpox vaccine appears promising

A study found that a tissue-cultured smallpox vaccine elicited high levels of seroconversion and an effective booster response in adults, with no severe adverse events reported. The vaccine's safety and immunogenicity were demonstrated in both previously vaccinated and unvaccinated individuals.

Study finds pay for performance stimulates changes in medical practice

A RAND Corporation study found that pay-for-performance programs have led to changes in medical practice, including the adoption of electronic medical records and tracking of physician performance. However, health plans and purchasers believe that more substantial quality gains require higher incentives.

Nice guys can finish first and so can their teams!

A new study published in the Journal of Personality and Social Psychology found consistently cooperative actors can shape group behavior, leading to increased productivity and economic efficiency. The findings challenge common assumptions about human cooperation in situations with short-term incentives.

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.

Nanotubes find niche in electric switches

Researchers at Rice University and the University of Oulu discovered that carbon nanotube brush contacts can significantly reduce resistance in electrical commutators, leading to improved performance and reduced energy loss. The study found a 10-fold decrease in resistance compared to traditional copper-carbon composite brushes.

Tall tale of giant stingray circles the globe

Biologist Zeb Hogan sets the record straight about a purported record-breaking 771-pound stingray, saying it was never weighed. The fish, caught in central Thailand, is estimated to weigh between 550-770 pounds and may be the world's largest freshwater fish.

Teenage stress has implications for adult health

A study by UCLA researchers found that teenage stress is associated with higher levels of inflammation, which can lead to cardiovascular disease. Daily interpersonal stress experienced during high school years was linked to elevated CRP levels in healthy teens.

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.

What's in a name? Perhaps more (or less) money

A study published in the Journal of Labor Economics found that immigrants to Sweden who change their foreign-sounding names experience an increase in earnings, with African, Asian, and Slavic immigrants seeing a 141% rise. The study suggests that name changes improve job interview chances and employment probabilities.

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.

Peer-to-peer heart monitoring

Researchers have developed a decentralized peer-to-peer (P2P) system to monitor patients with chronic illnesses remotely. The system, which utilizes idle processing cycles, storage, and bandwidth of individual nodes, can build a scalable model of the network overlay on the internet.

THESEUS -- tool for Internet services

THESEUS aims to develop an internet-based knowledge infrastructure using semantic technologies that can identify content meaning and classify it. This will enable computers to understand context and draw logical conclusions about data.

Developing fruit fly embryo is capable of genetic corrections

Researchers discover that fruit fly embryos can 'forget' incorrect body plans and develop into recognizable adult flies through cross-regulation among gap genes. This process, known as canalization, allows for robust development despite variable conditions, shedding light on the mechanisms of genetic interactions.

Tiny brain region better part of valor

A new study reveals that a tiny part of the brain's hypothalamus is key to animals' fear responses, contradicting long-held assumptions about the amygdala. The research found that neutralizing this region eliminates fear in rodents, who instead exhibit bold and aggressive behavior towards predators.

The difference between eye cells is…sumo?

Scientists have discovered a key to eye development - a protein called Pias3 that promotes rod cell formation and suppresses cone cell development. This breakthrough could lead to new treatment options for blinding conditions such as macular degeneration.

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.

Children of older fathers perform less well in intelligence tests during infancy

A study published in PLoS Medicine found that children of older fathers tend to perform poorly in intelligence tests during infancy and early childhood. In contrast, the same children who have older mothers exhibit better cognitive skills. The researchers suggest genetic and social factors as possible explanations for this association.

Live fast, die young? Maybe not

A recent study published in Physiological and Biochemical Zoology found that mice with increased metabolism live just as long as those with slower metabolic rates, casting doubt on the rate-of-living theory. This contradicts the idea that faster living animals die young.

Ecstasy could help patients with post-traumatic stress disorder

A study published in Journal of Psychopharmacology found that MDMA, a pharmaceutical version of Ecstasy, can enhance the effectiveness of exposure therapy for PTSD. By increasing oxytocin levels and reducing fear responses, ecstasy may help patients overcome traumatic memories and reduce stress.

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

It's your funeral: The eco burial movement gathers ground

Natural burial grounds in the UK offer a range of services and habitats, catering to individuals' preferences for informal settings and community interaction. The research team has visited over 20 sites, finding that some provide anonymity while others host events like Christmas carol services and live music festivals.

Quantum doughnuts slow and freeze light at will: 'Fast computing and slow glass'

A team of researchers from the University of Warwick has discovered a way to use doughnut-shaped quantum dots to slow and freeze light, paving the way for more efficient and effective light-based computing. This technique has significant implications for the development of 'slow glass' that can re-release photons in sequence.

Long-term effects of early Parkinson's treatments similar

A study compared two common drugs used to treat early-stage Parkinson's disease and found that their long-term impact is similar. The research showed that patients on different treatment regimens experience roughly the same level of disability and quality of life over time.

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.

Researchers look at effects of weather, air pollution on headaches

A study of over 7,000 patients found that higher air temperature and lower barometric pressure contribute to severe headaches, challenging the notion that weather triggers headaches. The research suggests that headache sufferers should identify personal triggers with their doctors, including environmental factors.

Satellite spies on tree-eating bugs

Researchers successfully used satellite images to monitor the extent of saltcedar leaf beetle defoliation on tamarisk. The study suggests that controlling tamarisk through beetle release may have unexpected environmental repercussions.

Meta Quest 3 512GB

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

Studies investigate health care at the end of life

A study found that patients who discussed end-of-life care with their physicians had lower healthcare costs in the final week of life. Another report revealed higher healthcare costs among black and Hispanic patients compared to white patients, regardless of cause of death. The findings highlight racial disparities in end-of-life care.

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.

Turn back, wayward axon

Researchers found that two receptors, neogenin and Unc5B, work together to guide a growing axon towards its destination. The discovery sheds light on how the axon navigates through the body and could have implications for understanding neurological disorders.

Ophthalmologists should join with other clinicians in battle against diabetes

The number of Americans with diabetic retinopathy is projected to triple by 2050, while cataracts will increase by 235% and glaucoma among elderly Hispanic individuals will increase 12-fold. Ophthalmologists must collaborate with other clinicians to help patients control their diabetes before eye complications worsen.

Amazonian amphibian diversity traced to Andes

A new study from the University of Texas at Austin reveals that Amazonian amphibian diversity originated from ancestral frogs leaping into the region from the Andes Mountains, with at least 14 dispersals occurring between 23 and 1 million years ago.

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.

Insomnia often appears to be a persistent condition

A recent study found that approximately 30 percent of adults report insomnia symptoms, and 74 percent report experiencing the condition for at least one year. Individuals with severe insomnia symptoms are more likely to relapse, while those with subsyndromal insomnia have a higher chance of remission.

Mutation of BRCA gene influences women's views of preventive mastectomy

Women with BRCA gene mutations strongly favor preventive mastectomy as the most effective way to reduce their risk and fears of developing breast cancer. The study found that over 80% of these women ultimately underwent the procedure, highlighting the significant impact of genetic testing on medical decision-making.

Hatha yoga practice and fear of falling in older adults

A study by Indiana University researchers found that yoga practice reduced the fear of falling in older adults, increasing lower body flexibility. The 12-week program also helped alleviate leisure constraints, promoting social and physical activity.

Fluke 87V Industrial Digital Multimeter

Fluke 87V Industrial Digital Multimeter is a trusted meter for precise measurements during instrument integration, repairs, and field diagnostics.

For old or young dialysis patients, AV fistulas remain pure gold

Researchers found that arteriovenous (AV) fistulas are the preferred access method for dialysis treatment at any age, with no significant difference in patency or openness between elderly and younger patients. AV fistulas allow continuous high volumes of blood flow, enabling efficient dialysis treatments.

Growth in military contracting blurs lines of accountability

A growing trend of outsourcing military labor to private contractors has led to a shift in accountability, with the human toll and costs being externalized. This raises concerns about holding foreign contractors accountable for crimes and protecting their welfare.

Does air pollution or weather trigger headaches?

A new study published in Neurology found that higher temperatures and lower barometric air pressure may increase the risk of headaches. Air pollution levels had no effect on headache risk in the study. The study examined 7,054 people diagnosed with headache in a Boston emergency department over seven years.

Commonly used beauty staple clinically proven to help treat eczema

A new study finds that Albolene moisturizing cleanser is as effective as a prescription moisturizer in reducing dryness, scaling, and itching related to mild to moderate eczema. The study suggests that over-the-counter moisturizers can be a cost-effective alternative for treating eczema without a prescription.

Sky & Telescope Pocket Sky Atlas, 2nd Edition

Sky & Telescope Pocket Sky Atlas, 2nd Edition is a durable star atlas for planning sessions, identifying targets, and teaching celestial navigation.