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Science News Archive 2014


Page 287 of 376

Biolimus still comparable to everolimus in year 2 of stent match-up

The study found no significant differences in cumulative safety and efficacy measures between biolimus-releasing stents with a degradable coating (BES) and everolimus-releasing stents with a durable polymer (EES). Biodegradable coatings have been shown to reduce late clinical problems associated with permanent polymers.

Tropical Cyclone Hellen makes landfall in Madagascar

Tropical Cyclone Hellen made landfall in west central Madagascar, with powerful thunderstorms and cloud top temperatures exceeding -63F/-52C. The storm developed in the Mozambique Channel and rapidly intensified into a Category IV cyclone before making landfall.

Hybrid vehicles more fuel efficient in India, China than in US

Berkeley Lab researchers found that hybrid cars are significantly more fuel-efficient in India and China than in the United States. In India, hybrids use up to 47-48% less fuel, while in China, they use up to 53-55%. The study's findings have important implications for countries with growing personal vehicle markets like India.

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.

Tamiflu-resistant influenza: Parsing the genome for the culprits

Researchers at EPFL have developed a tool to identify mutations that make the flu virus resistant to Tamiflu. By analyzing the genetic code of the virus, they discovered new mutations that may render the current treatment ineffective, highlighting the need for further investigation.

Self-healing engineered muscle grown in the laboratory

Researchers at Duke University have successfully grown lab-grown muscle that demonstrates self-healing properties, integrating into mice quickly and contracting powerfully. The breakthrough, led by Nenad Bursac, uses well-developed contractile muscle fibers and satellite cells to create a microenvironment for regeneration.

Comparison of drug-releasing stents show similar safety outcomes after 2 years

A JAMA study finds that biodegradable polymer biolimus-eluting stents (BP-BES) have similar safety outcomes to durable polymer everolimus-eluting stents (DP-EES) after two years, with noninferiority found for death and heart attack rates. The rates of target-lesion revascularization were also noninferior between the groups.

Wallace scholarship for women geoscientists awardees announced

The American Geosciences Institute has announced two new recipients of the Wallace Scholarship, a prestigious award supporting female geoscience students. Elizabeth Denis and Kelly Deuerling will receive $5,000 each for their first year of study, with the potential for additional funding in subsequent years.

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.

Anti-anxiety drugs and sleeping pills linked to risk of death

A large study published in BMJ reveals that anti-anxiety drugs and sleeping pills are associated with a doubling in the risk of mortality. The researchers emphasize the need for careful use of these medications, recommending alternative options such as cognitive behavioral therapy to minimize their side effects.

Should physicists work to the sound of silence?

Senior lecturer Felicity Mellor highlights the role of silence in physics history, citing Newton's isolated work and Heisenberg's retreat to Heligoland. She questions whether modern-day scientists have control over communication levels, arguing that a balance between silence and collaboration is key.

Apple iPhone 17 Pro

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

Wen Dan Tang improves insomnia-related anxiety

Researchers found that Wen Dan Tang significantly reduced insomnia-related anxiety in a sleep-deprived rat model. The traditional Chinese Medicine remedy also prevented decreased Ghrelin levels following sleep deprivation and increased Ghrelin receptor mRNA expression in the hypothalamus.

Metformin fails to reduce heart failure after heart attack

A rigorous clinical trial found that metformin did not preserve left ventricular function in non-diabetic patients with acute myocardial infarction. The study suggests that the commonly used glucose regulator is not beneficial for protecting against heart failure after a heart attack.

Satellite shows high productivity from US corn belt

Data from satellite sensors reveal the Midwest region of the United States boasts more photosynthetic activity than any other spot on Earth, according to NASA and university scientists. The magnitude of fluorescent glow emitted by plants is an excellent indicator of gross productivity.

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.

'The Politics of Hospital Provision in Early Twentieth-Century Britain'

A University of Huddersfield historian's research reveals that Britain's hospital services were highly developed in the 1920s and 1930s, particularly in Leeds and Sheffield. The study highlights the importance of local priorities and disparate standards in shaping healthcare, which has implications for current debates on the NHS.

Can vitamin A turn back the clock on breast cancer?

Researchers found that a vitamin A derivative, retinoic acid, can reverse the changes in pre-cancerous breast cells, making them resemble normal cells. However, this treatment has no effect on fully developed cancer cells. The study's findings suggest that there may be a narrow window of opportunity for this treatment to be effective.

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.

Computer maps 21 distinct emotional expressions -- even 'happily disgusted'

Researchers at Ohio State University have developed a computational model that maps 21 distinct emotional expressions, including compound emotions like 'happily surprised' or 'sadly angry'. This breakthrough enables precise tracking of emotion in the brain and has potential applications in treating disorders such as PTSD or autism.

What will climate policy mean for coal?

A new study by IIASA researchers suggests that delaying climate policies could lead to up to 37% of global investment in coal power plants being stranded, with China and India bearing most of the costs. The study explores strategies to reduce stranded capacity, including avoiding new plant construction, shifting to other power sources,...

Fluke 87V Industrial Digital Multimeter

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

Never say never in the nano-world

An international team of researchers found that a nanoparticle trapped with laser light temporarily violates the second law of thermodynamics, allowing it to release heat to hotter surroundings. This rare event occurs due to the non-equilibrium state created by cooling the nanoparticle below the surrounding gas temperature.

Increasing hospitalist workload linked to longer length of stay, higher costs

A study at a large academic community hospital system found that an increasing workload for hospitalists was associated with increased length of stay and costs, despite not affecting mortality or patient satisfaction. The results suggest that incentives aimed at increasing workload may lead to inefficient and costly care.

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.

Heat waves reduce length of pregnancy

A study found that heat waves in Montreal increased the risk of early-term delivery by 17-27%, with nearly 20,000 births occurring after a day when temperatures reached 32°C or higher. This may lead to increased morbidity in newborns, particularly those born at 37-38 weeks.

New functions for 'junk' DNA?

Researchers identified highly conserved non-coding sequences in plant genomes, associated with basic biological processes like development and gene regulation. These findings suggest that non-coding DNA can have important functions beyond protein encoding.

Heart health as young adult linked to mental function in mid-life

Research suggests that maintaining healthy blood pressure, sugar levels, and cholesterol as a young adult may help prevent cognitive decline in mid-life. A 25-year study of 3,381 participants found that those with higher risk factors scored lower on cognitive function tests in their 40s and 50s.

Online self-injury information often inaccurate, study finds

Research reveals that only 10% of online NSSI websites are endorsed by health institutions, with the majority spreading myths and inaccuracies. The study highlights the need for credible sites to be prioritized in search results and for users to be educated on how to evaluate e-health information.

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.

Bariatric surgery beats medical therapy alone for managing diabetes

Gastric bypass and sleeve gastrectomy surgeries show significant improvement in glycemic control, weight loss, and cardiovascular risk factors compared to intensive medical therapy. Patients undergoing surgery also experience reduced reliance on medications and improved quality of life measures.

Nano-paper filter removes viruses

Researchers at Uppsala University have developed a paper filter that can remove virus particles with efficiency matching the best industrial filters. The filter uses 100% high purity cellulose nanofibers directly derived from nature, overcoming previous limitations in virus removal.

Fast food giants' ads for healthier kids meals don't send the right message

A study by Dartmouth researchers found that fast food giants' advertisements for healthier kids' meals frequently go unnoticed by young viewers. Only one-half of the target audience correctly identified milk in McDonald's ads and sliced apples in Burger King's ads, highlighting poor communication about nutritional value.

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.

Genetic cause of heart valve defects

Scientists at the University of Bonn identified Creld1 as a crucial gene for heart valve development in mice, which also functions similarly in humans. This discovery may lead to improved diagnosis of unidentified heart valve diseases and better understanding of cardiac development.

A breakthrough in creating invisibility cloaks, stealth technology

Scientists have created artificial nanostructures called metamaterials that can bend light, enabling the creation of larger pieces of material with engineered optical properties. This breakthrough has the potential to produce practical devices for real-life applications, such as fighter jets remaining invisible from detection systems.

Celestron NexStar 8SE Computerized Telescope

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

Novel study into breast cancer origins paves way for personalized treatment

Researchers identify two distinct types of cells responsible for different breast cancer subtypes, shedding light on the origins of breast cancer diversity. This breakthrough discovery has the potential to revolutionize personalized treatment for patients, reducing unnecessary treatments and improving outcomes.

Warming climate may spread drying to a third of earth, says study

A new study predicts that 12% of land will experience drought by 2100 due to rainfall changes alone, but this number increases to 30% with consideration of evaporative drying. The warming climate may lead to food-price shocks and water scarcity in regions like the US, China, and Africa.

Limiting screen time yields mulitple benefits, ISU study finds

A new study by Iowa State University found that limiting screen time yields multiple benefits for children, including improved sleep, academic performance, and reduced aggressive behavior. The study suggests that parents can make a significant impact on their children's health outcomes by setting limits on screen time and media content.

Poor sleep quality linked to cognitive decline in older men

A new study of older men found that poor sleep quality is associated with a 40-50% increase in the odds of clinically significant decline in executive function. Sleep fragmentation and lower sleep efficiency were key predictors of cognitive decline.

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.

Where to get Viagra news? (Really, this isn't spam)

A study analyzing over 1 million prescription drug posts reveals that health-focused social networks, such as WebMD and Drugs.com, have more negative sentiment than general social networks like Twitter and Google+. The researchers also found that specific drugs, like Viagra and Abilify, are more popular on certain types of platforms.

Hearing loss affects old people's personality

A six-year study of 400 individuals aged 80-98 found that those with hearing loss became less outgoing, while emotional stability remained constant. The researchers attribute this change to a decrease in social interaction quality, which can affect relationships and overall wellbeing.

Lowering your cholesterol may improve your sex life

A new Rutgers study suggests that statin medication can not only lower cholesterol and reduce the risk of heart attack and stroke but also improve a man's erectile function. The researchers found that older men with poor cardiovascular health, diabetes, or metabolic syndrome often experience erectile dysfunction.

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.

New Zealand physicists split and collide ultracold atom clouds

Researchers at the University of Otago have created a system that can precisely split minute clouds of ultracold atoms into 32 daughter clouds. The 'optical tweezers' unit uses intense laser beams to manipulate and control the atoms, enabling new tools for probing microscopic structures.

Psychological factors turn young adults away from HIV intervention counseling

A new study published in AIDS Care found that pressure from counselors and perceived ineffectiveness of interventions can deter young adults from returning for follow-up sessions. The study suggests that tailoring interventions to individual needs, including delivering personalized information about HIV risk, can improve retention rates.

Giving steroids during bypass surgery shows no benefit, some harm

A worldwide study of 7,500 patients found that giving steroids during bypass surgery does not improve health outcomes and may increase the risk of heart attack. The study challenges a decades-long practice in cardiac surgery, suggesting that steroids should not be used prophylactically.

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.