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Science News Archive November 2009


Page 3 of 24

'Safety valve' protects photosynthesis from too much light

Researchers have discovered a specific protein in algae that acts as a safety valve to dissipate excess absorbed light energy. This finding could lead to the development of more robust, commercially viable strains for biofuel production and help plants survive extreme environmental conditions.

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.

Oceanic crust formation is dynamic after all

Researchers have observed dynamic upwelling in the underlying mantle beneath a spreading center, leading to new crust formation. This finding resolves a long-standing debate regarding the relative importance of passive and dynamic upwelling in oceanic crust creation.

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.

Implant-based cancer vaccine is first to eliminate tumors in mice

A new cancer vaccine has successfully eliminated tumors in mice by reprogramming the mammalian immune system. The implant-based vaccine targets tumor-specific antigens and directs T cells to hunt down and kill cancerous cells, providing durable protection against relapse.

1 of LA BioMed's founders to be honored

The American College of Physicians has awarded the Ralph O. Claypoole Sr. Memorial Award to Dr. Melvin R. Kaplan, one of LA BioMed's founders and a renowned internist. Dr. Kaplan has dedicated his career to patient care for over 60 years.

Cosmic 'dig' reveals vestiges of the Milky Way's building blocks

Astronomers have unveiled an extraordinary cosmic relic, Terzan 5, which formed in at least two different epochs, providing insights into the origin of the galactic bulge. The discovery suggests that Terzan 5 might be the surviving remnant of a disrupted dwarf galaxy contributing to the Milky Way's formation.

On-call radiology residents accurately interpret off-hours neuro CT exams

A study published in JACR found that on-call radiology residents can accurately interpret emergency neuroradiology CT scans after hours. The accuracy of image interpretation is crucial for diagnostic radiology, with clinicians relying solely on preliminary interpretations to make treatment decisions.

Celestron NexStar 8SE Computerized Telescope

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

Free e-samples of prescription drugs: At what cost?

Researchers analyzed internet offers for free or discounted prescription medications and found that their value is low compared to retail costs. The studies also revealed that efficacy and safety information were often de-emphasized in favor of promotional messaging.

Other short-lived greenhouse pollutants need to be controlled too

New research highlights the importance of controlling short-lived greenhouse pollutants like sulphates, methane, and black carbon to reduce global warming and improve health. The study finds that sulphates can have negative health effects while ozone pollution has a significant impact on cardiovascular mortality.

Houses of the rising sun

Researchers at the University of Leicester have identified over 90% of Sicilian temples facing east, sparking new insights into Ancient Greek practices. The study suggests an 'astronomical fingerprint' may distinguish between Greek and native settlements.

Apple iPhone 17 Pro

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

Startled flies may provide insight into ADHD

Researchers discovered two independent forms of arousal in fruit flies, with one mutation linked to increased startle response and decreased endogenous arousal. The findings suggest that environmentally stimulated arousal and sleep-wake transitions reflect distinct neural circuits, potentially shedding light on the neurobiology of ADHD.

It's not just dirt!

Interactive e-lessons developed by soil science educators engage learners with active learning strategies, interactive Flash animations, and experiential activities. These lessons aim to help students and the public recognize the critical importance of soil in addressing various issues.

Tips from the American Journal of Pathology

Researchers discovered a link between Wnt signaling pathway activation and diabetic retinopathy. Pro-NGF may play a pathogenic role in Alzheimer disease through oxidative stress-induced modifications. Abnormal endothelial cells contribute to tumor progression and metastasis in cancer.

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.

Early relationships influence teen pain and depression

Insecure adolescents experience more intense pain in forms like headaches, abdominal pain, and joint pain. They are also more likely to be depressed compared to peers with secure attachments. The study highlights the importance of considering interpersonal factors in treating adolescent pain and depression.

Workplace literacy schemes are too short to improve skills

A study by King's College London found that workplace basic skills courses had little impact on productivity and employability. Short course durations were identified as a major reason for the failure of the initiative. Conversely, participants reported increased confidence and a greater interest in education.

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.

The contagion of our mistakes shows no mercy

Climate change poses a fundamental threat to global health, particularly for vulnerable populations. Strengthening health systems and investing in cheap and proven public health interventions can accelerate progress towards the MDGs and help mitigate climate change.

Tailor-made HIV/AIDS treatment closer to reality

McGill University Health Centre researchers have developed an innovative immunotherapy customized for each patient, showing immense promise in combating HIV/AIDS. The therapy uses dendritic cells to target specific viral strains, resulting in increased levels of CD8-lymphocytes and few reported side effects.

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.

Study sheds light on brain's fear processing center

A new study by University of Iowa researchers shows that breathing carbon dioxide can trigger panic attacks by increasing brain acidity, which activates a brain protein involved in fear and anxiety behavior. The study suggests new approaches for treating panic and anxiety disorders by targeting the brain protein ASIC1a.

ASH announces 2009 Merit Award winners

The American Society of Hematology recognizes outstanding abstract presenters with the 2009 Merit Award, offering $500 honorariums to the best trainees in hemostasis and thrombosis. The winners include Kimberly Fan, Kyle Eash, Hélène Moniz, An De Weer, Suparna Nanua, MD, PhD, Jian Xu, PhD, and Rudy Fuentes.

Small faults in southeast Spain reduce earthquake risk of larger ones

Scientists discover that smaller tectonic structures near larger faults in southeast Spain partially offset the risk of earthquakes, reducing seismic activity. By studying fossils and geological data, researchers found that these small faults help relax energy associated with plate convergence.

New data emerges on liver transplant survival rates

Researchers found no statistically significant differences in post-transplant survival rates between cirrhotic patients with nonalcoholic steatohepatitis (NASH) and alcoholic liver disease. However, NASH patients were at increased risk for metabolic syndrome complications, including cardiovascular mortality.

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.

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.

New stress-related gene modulates high blood pressure in mice and men

Researchers have identified a novel gene, phosducin, that modulates high blood pressure in response to stress. The studies found that mice lacking the gene developed high blood pressure under stress, while certain DNA variants serve as markers for increased blood pressure risk in humans.

When camouflage is a plant's best protection

A rare woodland plant, Monotropsis odorata, has evolved 'cryptic coloration' as a defense mechanism to avoid herbivores. The plant's bracts function as camouflage, making it blend in with its surroundings, which increases its fitness and survival rate.

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.

A RANK insider resolving the enigma of the fever chart

Researchers find that the RANK protein and its ligand regulate the body's fever response, helping to fight infection. Female mice lacking RANK in the brain have increased body temperatures compared to males, with a link to sex hormones and reproductive biology.

Doctors must discuss climate change and health with patients

The medical profession is urged to accelerate its role in the climate change debate. A low carbon development fund of at least $150 billion is proposed to support global health. The authors emphasize the need for clear communication with patients, politicians, and the public about the risks of inaction.

New genetic cause of cardiac failure discovered

Researchers have identified a new genetic cause of cardiac failure, specifically mutations in the nexilin protein that destabilize the Z-disk. This discovery has significant implications for clinical therapy, suggesting that early treatment with stress-reducing medications may prevent progressive damage to the heart.

Cell phones to provide picture of human interaction

A study is using cell phones to collect detailed data on human interactions, allowing for a more accurate picture of daily life. The research aims to refine existing prevention programs by identifying patterns in individual behavior.

Meta Quest 3 512GB

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

Involving family in medical rounds benefits both family and medical team

A new Indiana University School of Medicine study found that involving family members in medical rounds improves care and communication. Families reported increased feelings of inclusion, respect, and a better understanding of their child's care. Participation is voluntary, and family members can ask questions and offer input.

Opposites attract: Monkeys choose mating partners with different genes

A new study found that female mandrills reproduce with males whose genes complement theirs, increasing the chances of their offspring resisting disease. The researchers believe this may be due to smell or selective fertilization, and the discovery supports the idea humans may also choose genetically compatible mates.

Atomic-level snapshot catches protein motor in action

Researchers have uncovered the critical action shapshot of an enzyme known as the Rho transcription termination factor, a remarkable class of ring-shaped protein motors. The study reveals a rotary engine-like mechanism that enables the motor to selectively terminate transcription at discrete points along the genome.

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.

Strategic management theory offers fresh take on the economic crisis

Research published in Strategic Organization highlights micro-level underpinnings of macroeconomic events, arguing that traditional theories are inadequate. The authors propose a new approach based on heterogeneous resources and capabilities, which can help resolve the current crisis.

Chronic pain found to increase risk of falls in older adults

A new study reveals that chronic musculoskeletal pain in older adults significantly increases their risk of falls. The research found that participants with chronic pain in two or more joints had a 50% greater risk of falling compared to those with no pain.

Fluke 87V Industrial Digital Multimeter

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

Reduced skin infections in Northern Australian Aboriginal children

A three-year study in remote communities found a significant reduction in skin sores among Aboriginal children, with over 6000 assessments conducted on nearly 2500 children. The program's success highlights the importance of local education and treatment, but ongoing efforts are needed to address underlying causes such as poor housing ...

Rocket science leads to new whale discovery

Researchers use X-ray scanners and advanced computing to create detailed replicas of a whale's hearing anatomy. The study suggests mid-frequency sonar sounds are largely filtered, while higher frequencies used by whales for hunting are amplified.

Carnegie Mellon's Jay Whitacre receives funding from energy department

Carnegie Mellon University's Jay Whitacre has received a $5 million award from the US Department of Energy to develop a new room-temperature sodium-ion battery technology. The goal is to improve grid reliability and efficiency, enabling the expansion of renewable energy sources. This project aims to reduce electricity use by 4% in 2030...

New tool for helping pediatric heart surgery

Researchers at UCSD and Stanford University developed a computational tool to simulate blood flow on computers, optimizing surgical designs for the Fontan surgery. This tool allows doctors to test plans and evaluate blood flow patterns before operating, potentially reducing risks associated with the procedure.

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.