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Science News Archive March 2007


Page 3 of 18

Healthy coastal wetlands would adapt to rising oceans

A new Duke University study suggests that healthy coastal wetlands can adjust to rising sea levels by maintaining their vegetation and sediment supplies. This adaptation enables the marshes to function as effective buffers against coastal storms, while also providing habitat for commercially important fin and shellfish.

Smart thin film membranes adopt properties of guest molecules

Researchers at Virginia Tech have created nanostructured membranes that can recognize and bind to diverse organic and inorganic molecules. These membranes adopt the properties of the guest molecules, enabling applications such as controlling ion flow through films.

Harnessing new frequencies

Researchers at the University of Utah have discovered a way to manipulate far-infrared light for efficient transmission, paving the way for faster wireless communication. The technology also enables detection of concealed explosives and biological weapons using vibrational spectroscopy.

Apple iPhone 17 Pro

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Groundbreaking Canadian asthma study

A new report published in the New England Journal of Medicine shows that bronchial thermoplasty significantly improves asthma control, reducing symptoms and medication use. The procedure, which reduces airway smooth muscle, demonstrates promising results for patients with moderate or severe asthma.

Biopsy may underestimate prostate cancer in obese and overweight men

A study by Duke University Medical Center researchers found that obese and overweight men are more likely to have aggressive prostate cancer than biopsy results indicate. This discrepancy may lead to inadequate or inappropriate treatment, emphasizing the need for more accurate biopsies.

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.

US EDA awards $1.5 mill to grow Rutgers incubator

The US Economic Development Administration has awarded $1.5 million to the Rutgers-Camden Technology Campus to develop wet labs for a new Biotech-Life Science Business Incubator. The grant will create 255 jobs and generate over $17 million in private investment, supporting the growth of New Jersey's biotechnology industry.

'Smart' sunglasses feature lenses that change color on demand

Scientists have developed 'smart' sunglasses featuring electrochromic polymers that change colors in response to an electric current, offering a wide range of color options. The prototype shades are powered by a tiny battery and resemble regular sunglasses with a button-activated color-changing feature.

Engineering the heart piece by piece

Researchers at the University of Michigan have made significant progress in cardiac tissue engineering, with promising results in growing pulsing heart muscle and tri-leaflet valves. However, challenges such as determining optimal cell types and finding effective methods to grow viable tissue still need to be addressed.

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.

Heart intervention doesn't outweigh medicine in study

A new five-year study published in the New England Journal of Medicine found that stable heart patients received no significant benefit from undergoing angioplasty compared to those treated with medication alone. The study showed a 19.5% rate of death, heart attack, and stroke among medication-only patients versus 20% for PCI recipients.

Why some people are more attractive than others

Researchers found that genetic mutations affecting DNA repair kits cause greater variation in individuals, leading to increased physical diversity. This contradicts the 'lek paradox' argument that sexually-selecting species should have less individuality.

Patient adherence for successful tuberculosis treatment

A randomized controlled trial in Senegal found that training health-care personnel, communication with patients, and considering local context improved treatment adherence by 20%. The action strategy also reduced defaulting rates by two-thirds. This approach aims to restrict disease spread and prevent resistant strains.

Gene test shown to measure heart function after transplant

A gene expression profiling test has been shown to correlate with oxygen saturation levels, pressure in the heart before pumping, and electrical properties of the transplanted heart. This test may provide a valuable tool to tailor therapies to meet the specific needs of each heart transplant patient.

Higher trans fat levels in blood associated with elevated risk of heart disease

A new Harvard T.H. Chan School of Public Health study found that women with the highest trans fat levels in their blood had three times the risk of coronary heart disease as those with the lowest levels. The study, which measured trans fatty acid levels in blood samples, provides strong evidence for the health risks of trans fat.

Celestron NexStar 8SE Computerized Telescope

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

EVEREST data on use of tolvaptan published in JAMA and featured at ACC

The EVEREST trial showed that tolvaptan improved signs and symptoms of acutely decompensated heart failure, with significant reductions in body weight and improvements in dyspnea. Long-term use did not differ from placebo on survival endpoints, but tolvaptan may be a potential therapy for patients with heart failure.

U of M study identifies factors associated with successful weight loss in teens

Researchers found that overweight teens who lost weight engaged in significantly more moderate to vigorous physical activity (7.6 hours/week for females, 11.7 hours/week for males) and spent less time watching TV compared to those who gained or maintained weight. This study provides valuable insights into behaviors associated with succ...

Meta Quest 3 512GB

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Physicists shine a light, produce startling liquid jet

Researchers at University of Chicago and Bordeaux use laser beams to generate bulk flow in fluids, a phenomenon known as radiation pressure. The technique may offer a new twist to microfluidics, allowing for rapid adjustments and more efficient chemical reactions.

'Smart' sunglasses and goggles let users adjust shade and color

Researchers have developed smart glasses with electrochromic materials that can change transparency and color using minimal power. The prototype lenses offer endless options on one accessory, improving depth perception and contrast, and avoiding drawbacks of existing photochromic lenses.

Herbal extract extends life for heart failure patients

A randomized trial found that Crataegus Extract WS1442 safely prolongs the lives of congestive heart failure patients, reducing cardiac-related deaths by 20%. The study involved 2,681 patients and confirmed the safety of the compound, which is currently approved for use in some European countries.

Nanoparticles for delivery of prostate cancer treatment

Alan Garen and Zhiwei Hu have developed a way to target and destroy tumor blood vessels using nanoparticles. The technology uses a synthetic gene that activates an immune response, allowing for selective destruction of tumors while leaving normal tissue unharmed.

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.

Link between beef consumption during pregnancy and reduced sperm quality in sons

Research found that pregnant women who ate more than seven beef meals a week had sons with lower sperm concentrations and higher rates of sub-fertility. The study suggests a link between maternal beef consumption and reduced fertility in sons, potentially due to the presence of anabolic steroids and other xenobiotics in beef.

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.

MRI contrast agent can detect heart attack in the making

A new synthetic molecule has been developed to deliver an imaging enhancer to cholesterol-filled cells, improving detection by 79 percent. The technique allows physicians to diagnose unstable plaques and identify high-risk patients for early treatment.

The 'best ever' marketing strategy? Maybe not, says UGA study

A UGA study reveals that people take notice when they feel worse than expected, but not when they feel better. This 'affective misforecasting' gap influences product evaluations. By creating realistic expectations, businesses can minimize this effect and improve customer satisfaction.

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.

Light-activated therapy targets DNA components

Researchers at Virginia Tech have introduced a DNA targeting component in light-activated molecular systems, allowing for more selectivity in attacking cancer cells. The new system uses visible light to signal the synthesized bioactive molecules to cleave DNA, reducing damage to healthy tissue.

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.

Ring-around-the-cell

Researchers at the Weizmann Institute of Science have discovered that the impermeable ring formed by osteoclasts is composed of individual podosomes held together by protein filaments. This unique structure allows the cells to confine bone-eating acids and enzymes, enabling efficient bone digestion.

Unique models help teach nanoscience to the blind

Blind and visually impaired students can engage with nanoscience through tactile models, bridging the gap between observation and experimentation. The 3D models are created from data generated by tools like SEM and AFM, allowing for a more immersive experience.

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.

Maternal beef diet could impact sperm counts, UR study suggests

A study by the University of Rochester Medical Center found a significant link between high maternal beef consumption and lower sperm counts in sons. The study suggests that prenatal exposure to anabolic hormones from beef may alter sperm production in the male fetus, leading to reduced semen quality.

Himalayan glacier melting observed from space

Satellite imagery revealed a significant decline in Himalayan glacier thickness by up to 10 meters between 2000 and 2004. The research used digital field models to compare NASA and French satellite data, resulting in an average annual mass balance of -0.7 to -0.85 meters per year for the studied region.

Disease management programs improve long-term outcomes

According to two studies, disease management programs designed with repetitive education and close monitoring can reduce hospital visits and increase heart failure patients' chances of long-term survival. The REMADHE study found that patients who received a nurse-based program spent an average of nine fewer days in the hospital.

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.

Lung cancer screening regimen provides opportunity for cure

A lung cancer screening regimen has been found to identify patients with early-stage cancer, allowing for curative treatment. The study suggests that annual repeat screenings can detect lung cancer at its earliest stage, resulting in a high proportion of patients having no evidence of metastases.

ACS News Service Weekly PressPac -- March 21, 2007

Researchers at the American Chemical Society's 233rd national meeting presented breakthroughs in sustainability, including the development of molecular-scale 'scissors' that can manipulate molecules using light. Additionally, a new biofuel cell produces electricity from hydrogen in air, paving the way for clean energy solutions.

Doubly safe activation

Interferon gamma and interleukin-1 alpha molecules work together, collaborating like two halves of a key, to initiate various immune responses. This unexpected collaboration enhances the antiviral activity of interferon gamma, providing an extra layer of security for the body.

It's only a game of chance

A leading theory of neural coding has been challenged by a Weizmann Institute research team, suggesting that brain function may be more dependent on chance than previously thought. The study found no evidence to support the idea that specific patterns of activity in neurons encode cognitive information.

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.

New developments in 'artificial photosynthesis'

Brookhaven chemists aim to replicate natural photosynthesis to produce fuels like methanol, methane, and hydrogen from water and carbon dioxide using renewable solar energy. They are investigating various catalysts, including ruthenium-based complexes, to mimic the natural process of oxygen production from water.

SCAI leaders say courage results unlikely to change use of PCI

The COURAGE trial found that PCI reduces neither mortality nor heart attack in patients with chronic stable angina when added to optimal drug therapy. SCAI leaders emphasize the importance of discussing treatment options and goals with patients, as therapy may not be suitable for every patient.

Magnetic fields get reconnected in turbulent plasma too, Cluster reveals

Researchers found evidence of magnetic reconnection in turbulent plasma around Earth using ESA's Cluster satellites. This discovery has significant implications for understanding the behavior of turbulent plasma and its role in fundamental processes such as energy dissipation and particle acceleration.