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Science News Archive July 2009


Page 7 of 23

Carnegie Mellon team makes sequestration recommendations

A new set of policy briefs from Carnegie Mellon University recommends a uniform regulatory environment to support large-scale deployment of carbon sequestration technology in the US. The team proposes an adaptive two-stage approach to regulation and specific changes to federal law and agency rules to address regulatory and legal barriers.

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.

Embarrassing illnesses no bar to information sharing

A new study published in BMC Medical Ethics found that the purpose and type of information collection were more important than the individual's condition in determining consent choices. Participants preferred more control over the use of their personal information, especially when it linked to profit or personal details.

Parasitic worms make sex worthwhile

Biologists discovered that parasites drive snails to reproduce sexually, increasing genetic diversity and resistance to infection. The study supports the Red Queen Hypothesis and Geographic Mosaic Theory, showing that host species can adapt to avoid parasite coevolution by producing genetically variable offspring.

A simpler definition for major depressive disorder

A new definition of major depressive disorder (MDD) suggests that only mood and cognitive symptoms are included, excluding somatic criteria. This revised definition was found to be highly concordant with the current version in a large sample of psychiatric outpatients, offering benefits such as reduced time needed for assessment and sh...

Technology improves salmon passage at hydropower dams

Researchers at PNNL developed acoustic tags to measure salmon survival rates and a hydro model to direct fish away from predators. These technologies aid in improving salmon passage at Columbia Basin's hydroelectric dams.

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.

Safer hair dyes and cosmetics to be made from Shetland seaweed

Scientists at the University of Leeds are developing safer hair dyes and cosmetics using compounds extracted from Shetland seaweed, which can replace synthetic ingredients found in current products. The project aims to create a new range of colours including blonde, brown, red, and black.

Improving impaired attention may help patients recover from stroke

Researchers found that Attention Process Training (APT) improved attention in 78 stroke survivors, with average improvements of 2.49 standard deviations higher than standard care patients on full-scale attention scores. APT is a viable and effective way to improve attention deficits after stroke.

Apple iPhone 17 Pro

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

The paradox of loyalty

Researchers found that loyalists who were most devoted to their school were also the most cooperative and helpful when confronted with injustice. However, this loyalty was short-term and may fade if the group continues to exhibit unfairness.

Stem cells not the only way to fix a broken heart

Researchers have devised a new method to fix a broken heart by coaxing adult heart muscle cells into reentering the cell cycle, allowing them to divide and regenerate healthy heart tissue. The key ingredient is neuregulin1, which may one day be used to treat failing human hearts.

Scientists discover key event in prostate cancer progression

Researchers at Ohio State University Comprehensive Cancer Center and Dana-Farber Cancer Institute reveal how late-stage prostate tumors gain ability to grow without hormones. The study identifies a gene called UBE2C as key regulator in hormone-independent growth.

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.

Medical ethics and Guantanamo Bay: Time for reform

The US Department of Defense has been criticized for its handling of medical care at Guantanamo Bay, with a report highlighting concerns over the use of medical personnel in interrogation and force-feeding of detainees on hunger strike. Independent examinations of released detainees have shown severe psychological damage from detention.

Injection reverses heart-attack damage

A growth factor called neuregulin1 can spur heart-muscle growth and recovery of cardiac function when injected systemically into animals after a heart attack. Researchers were able to restart the cell cycle with NRG1, stimulating cardiomyocytes to divide and make copies of themselves - even though they are not stem cells.

Detecting early signs of osteoarthritis

A three-year study is underway to explore the link between knee inflammation and osteoarthritis. Researchers use ultrasound to identify inflammation in people over 55 with knee pain or osteoarthritis.

Sticky protein helps reinforce fragile muscle membranes

A new study identifies alpha dystroglycan as a key protein that binds muscle membranes to the basal lamina, reinforcing membrane integrity. Injecting functional dystroglycan into muscle tissue restored membrane integrity and protected muscles from damage.

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.

Consulting with clouds: A clear role in climate change

A new study reveals that low-level stratiform clouds appear to dissipate as the ocean warms, indicating that changes in these clouds may enhance global warming. The research also suggests a critical role for weakening trade winds in reducing cloudiness.

Global team develops tools to unravel diversity of rice

A global team of researchers has developed tools to analyze the genetic diversity of rice, a crucial step towards improving crop yields and securing global food supplies. The comprehensive SNP information will enable exploration of rice diversity for understanding gene function and improving important traits.

Almost 1/4 of Spanish women take antidepressants

A study by researchers from four Madrid-based health centres found that family conflict is not a significant factor in the use of psychopharmaceuticals among Spanish women. The results show that 24% of women take antidepressants, with benzodiazepines used by 30.6%, primarily for sleep aid.

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.

CNN's 'Vital Signs' to feature US Navy-funded technology

A breakthrough technology developed by the US Navy is being adapted for breast cancer detection, offering improved reliability in early detection. The technology complements existing radiology devices by yielding more detailed images of faint cancerous lesions.

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.

Hopkins-designed animal TB 'tracker' to speed drug and vaccine studies

A new monitoring system developed by Johns Hopkins researchers allows for the non-invasive pinpointing of Mycobacterium tuberculosis in mouse lungs, speeding up preclinical testing of TB drugs and vaccines. This innovation enables fewer animals to be used, reducing the need for lengthy and complicated regimens.

New evidence: AIDS-like disease in wild chimpanzees

Researchers discovered that infected chimpanzees had lower survival rates and were more likely to die from disease. The study found a significant link between SIV infection and CD4+ T-cell decline, similar to HIV-1 in humans.

Chimps, like humans, focus on faces

A recent study suggests that chimps respond to faces in a similar manner to humans, capturing attention more effectively than other objects. Reaction times improved when the target appeared behind the image of a chimpanzee face.

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.

Rainfall to decrease over Iberian Peninsula

Rainfall in Iberian Peninsula to decline due to climate change, with increased frequency in winter and lower amounts in spring-summer. Climate models predict significant changes by middle of 21st century, with varying effects on seasonal distribution patterns.

Critical link in cell death pathway revealed

A team of researchers has identified XIAP as the critical factor determining which cell death pathway is followed to culminate in a cell's death. This finding has implications for cancer patients with underlying liver conditions who are being treated with IAP inhibitors.

Experiments show 'artificial gravity' can prevent muscle loss in space

Researchers used a NASA centrifuge to simulate artificial gravity and found that just one hour a day was enough to maintain thigh muscle protein synthesis. The study suggests that this could be a potential countermeasure for preventing muscle loss in space, with implications for human health on Earth as well.

New windows opened on cell-to-cell interactions

Researchers at the University of Oregon have discovered a new class of self-assembling materials that can control colloidal interactions by applying biological molecules from cell membranes. The findings suggest that specially tweaked biological membranes can serve as control knobs to direct materials to specific actions.

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.

An inner 'fingerprint' for personalizing medical care

Researchers analyzed over 1,800 urine samples and identified individual patients with an accuracy of over 99 percent using metabolic profiling. The study provides evidence that the metabolic fingerprint remains stable over time, paving the way for personalized medical care.

New silver nanoparticle skin gel for healing burns

Researchers have developed a novel silver nanoparticle skin gel that effectively kills harmful bacteria, including drug-resistant microbes, while promoting wound healing without causing harm to healthy skin. The gel contains 30 times less silver than traditional antimicrobial agents, making it a safer option for burn patients.

Louisiana Tech researcher featured in international physics journal

Researchers, including Dr. Dentcho Genov, successfully mimicked celestial mechanics using artificial optic materials to study phenomena around black holes and other celestial objects. The team's work has implications for technology, such as the 'invisibility cloak,' and confirms Louisiana Tech's contribution to vital science discoveries.

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.

AIDS discovered in wild chimpanzees

A new study reveals that chimpanzees infected with SIV, the precursor to HIV-1, contract and die from AIDS. Infected females were less likely to give birth, and infants born to infected mothers were unlikely to survive. The virus was transmitted sexually and through mother's milk.

Vi typhoid vaccine proves highly effective in young children

A new study by IVI-NICED found that the Vi polysaccharide vaccine is highly effective in protecting young children against typhoid fever, with 80% protection rate in children under five years old. The vaccine also conferred substantial herd protection, reducing typhoid risk among unvaccinated neighbors by 44%.

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.

Stunting plants' skyward reach could lead to improved yields

Michigan State University scientist Beronda Montgomery is studying the process of stem growth in plants, which diverts energy from seed, flower, and leaf production. Her research aims to understand how phytochromes control plant growth and develop new approaches to improve crop yields.

Quantum measurements: Common sense is not enough

A team of physicists from Innsbruck, Austria, have proven that it is not possible to explain quantum phenomena in non-contextual terms. They used techniques designed for building a quantum computer and performed a series of measurements on a pair of laser-cooled calcium ions.

Music is the engine of new U-M lab-on-a-chip device

Researchers at U-M have developed a lab-on-a-chip device that uses sound waves to drive experimental samples through the device. This innovation replaces traditional electromechanical valves with resonance cavities, amplifying specific musical notes to create air pressure controlling droplets.

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.

Vaccine blocks malaria transmission in lab experiments

Researchers have developed a malaria vaccine that effectively blocks the parasite's sexual development, critical for transmission. The vaccine induced a significant immune response in mice and non-human primates, with a 93% transmission-blocking rate after a single dose.

NASA tracking and data relay satellite mission passes major review

The TDRS project has received approval to proceed with the implementation phase of its mission, enabling NASA to build more spacecraft needed to support missions. The next milestone is a critical design review scheduled for January 2010, which will examine detailed aspects of the TDRS spacecraft and system.

Caltech physicists create first nanoscale mass spectrometer

Researchers at Caltech have created a nanoscale mass spectrometer that can instantly measure the mass of an individual molecule. The device uses tiny nanoelectromechanical system (NEMS) resonators to detect changes in vibration frequency, allowing for precise mass determination.

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.

For abused women, leaving is a complex and confusing process

A new study finds that abused women experience a five-stage process of leaving, marked by boundary ambiguity, emotional disconnection, and preparation to leave. Women often struggle with clarity and connection once they've left, highlighting the need for support and understanding from social workers, friends, and family.

Close caregiver relationship may slow Alzheimer's decline

A study found that a close caregiver relationship can slow Alzheimer's disease progression by retaining more cognitive function and functional abilities over time. Patients with close caregivers scored better on cognitive tests and retained more of their brain function compared to those without close relationships.