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Science News Archive January 2009


Page 17 of 19

Health-care providers and patients differ on views of knee replacement

A study of healthcare providers and patients found that they often disagree on the need for total knee replacement surgery, despite both agreeing on its benefits. Patient satisfaction and adherence to treatment recommendations improve when there is greater agreement between providers and patients.

NASA balloon mission tunes in to a cosmic radio mystery

The team found a cosmic puzzle that booms six times louder than predicted, ruling out origins from primordial stars and known radio sources. The source of this cosmic radio background remains a mystery, complicating efforts to detect the first stars in the universe.

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.

Researchers measure elusive repulsive force from quantum fluctuations

Researchers at Harvard University have measured a repulsive quantum mechanical force that could be harnessed and tailored for new nanotechnology applications. This discovery builds on previous work related to the Casimir force, which becomes significant when the space between two metallic surfaces measures less than 100 nanometers.

Mountaineers measure lowest human blood oxygen levels on record

Climbers on an expedition led by UCL doctors reached record-low oxygen levels in their blood, averaging 3.28 kPa, which is significantly lower than the normal human range of 12-14 kPA. The study aims to inform critical care treatment strategies for patients with low oxygen levels.

P2P traffic control

Researchers propose a wireless peer-to-peer network to exchange timely information about traffic conditions, incidents, and accidents. The Autonet system uses local-area wireless technology to form an ad hoc network that can handle measurements for approximately 3,500 traffic incidents.

Lost in translation

Scientists at Johns Hopkins Medicine found that the ribosome recognizes and corrects errors during protein synthesis. The discovery reveals a critical 'proofreading step' in protein production, showcasing the cell's strict adherence to high-fidelity synthesis.

Gene abnormality found to predict childhood leukemia relapse

A study led by St. Jude Children's Research Hospital identified mutations in the IKZF1 gene that predict a high likelihood of relapse in children with acute lymphoblastic leukemia (ALL). The findings suggest that this genetic marker could be used to tailor treatment intensity and improve patient outcomes.

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.

Absence of CLP protein can be indicative of oral cancer

A new study published in the Journal of Prosthodontics found that the absence of Human calmodulin-like protein (CLP) in oral epithelial cells may indicate oral cancer. The researchers used staining to compare CLP expression in normal and cancerous tissues, revealing a significant decrease or complete lack of CLP in malignant regions.

Spookfish uses mirrors for eyes

The four-eyed spookfish uses mirrors to focus light in its eyes, producing bright and high-contrast images. This unique adaptation gives the fish an edge in the deep sea, where spotting brief flashes of bioluminescent light can mean the difference between eating and being eaten.

Meta Quest 3 512GB

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

Unique skeletal muscle design contributes to spine stability

The multifidus muscle's unique packing design allows it to serve as a critical stabilizer of the lumbar spine, providing strong support for the lower back. This discovery could lead to improved therapeutic interventions, such as physical therapy targeting specific muscles, to treat spinal disorders and reduce lower back pain.

Logical reversal

Reverse logistics allows companies to recycle and remanufacture used products, reducing waste and environmental damage. This process provides companies with a financial return through refurbished goods sales and capitalizes on their 'green' credentials in marketing terms.

Studies examine genetic determinants of ADHD

Two studies examine over 600,000 genetic markers in ADHD patients, finding that multiple genes contribute to the disorder. The findings highlight the need for larger studies to fully understand the genetic mechanisms underlying ADHD and to develop more effective treatments.

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: Excessive use of antiviral drugs could aid deadly flu

Researchers analyzed 700 genome sequences of avian influenza strains to document resistance to adamantane antivirals. The study suggests that widespread antiviral drug use can accelerate the evolution of drug-resistant viruses, which can spread rapidly.

Destroying amyloid proteins with lasers

Researchers used lasers to visualize amyloid fibers in the lab and found that it can inhibit their growth and degrade them. This technique may offer a new approach to treat amyloid-based disorders like Alzheimer's, Parkinson's, and Huntington's diseases.

Control of blood vessels a possible weapon against obesity

Researchers at Karolinska Institutet found that mice exposed to low temperatures develop more blood vessels in adipose tissue, leading to faster fat metabolism. This discovery offers new therapeutic avenues for obesity and metabolic diseases.

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.

Repeat C-section before 39 weeks raises risk of neonatal illness

Women choosing repeat cesarean deliveries at term but before 39 weeks are up to two times more likely to have a baby with serious complications. Babies born before 39 weeks are at increased risk for respiratory distress and NICU admission, highlighting the importance of delaying elective delivery until 39 weeks gestation.

Metabolic syndrome a risk for veterans with PTSD

Researchers found that veterans with PTSD were more likely to have metabolic syndrome, which is composed of obesity, high blood pressure, and insulin resistance. The study suggests that stress and post-stress responses are related to long-term health outcomes and may be linked to an increased risk of disease.

UN fails miserably to protect innocent citizens in conflict zones

The UN has failed to uphold its founding principle of protecting civilians and ensuring medical attention for those injured during conflicts. The Editorial suggests that the medical profession could play a crucial role in advocating for humanitarian health needs, calling on governments and international organizations to take action.

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.

Protein's essential role in repairing damaged cells revealed

University of Michigan researchers have identified the protein Mre11 as a 'caretaker' that repairs DNA damage, in addition to its existing role as a 'gatekeeper' signaling injury. This discovery may lead to new cancer treatments by predicting tumor sensitivity to radiation and therapies.

American Mathematical Society 2009 prizes and awards

The American Mathematical Society presented several prestigious prizes to recognize exceptional contributions in mathematics. The winners include Luis Caffarelli, Richard Hamilton, and Maryam Mirzakhani, who were honored for their groundbreaking research and achievements.

International experts weigh-in on harmful algal blooms

International experts cite nutrient pollution as a major force behind increased harmful algal bloom events. The University of Maryland Center for Environmental Science presents a compilation of research highlighting the role of nutrient pollution in driving these events.

Apple iPhone 17 Pro

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

Angina: New drug gets right to the heart of the problem

Researchers discover novel compound F15845 that targets persistent sodium current, causing permanent excess sodium influx in heart cells. The drug has shown promising results in animal studies, with acceptable bioavailability when given orally.

NASA's Swift shows active galaxies are different near and far

Astronomers are discovering that galaxies with actively forming stars have a bluish color, while those without do so appear red. The BAT Hard X-ray Survey of NASA's Swift spacecraft has found most nearby active galaxies to be spiral and irregular, with more than 30% being colliding.

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.

Physical activity may not be key to obesity epidemic

Researchers from Loyola University Health System found no significant difference between African American women in metropolitan Chicago and Nigerian women in terms of calories burned during physical activity. The study suggests that dietary intake may be more important than energy expenditure level in the rising rates of obesity.

NC State researchers find new bartonella species that infects humans

Researchers at NC State University and CDC have isolated a new Bartonella species, B. melophagi, from human blood samples, linking it to human illness. The discovery expands the list of documented human pathogens and highlights the need for further research into transmission routes and disease development.

Cassiopeia A comes alive across time and space

A team of scientists has created a movie tracking the expansion and changes of Cassiopeia A over time, revealing slower-than-expected energy loss. The visualization also shows high-velocity plumes from the explosion, challenging current theoretical models.

Studies offer guide as protein interaction mapping comes of age

Researchers at Dana-Farber Cancer Institute develop a framework to evaluate the quality of protein interaction maps, finding that only 20-30% of interactions are captured by current techniques. The study also introduces a tool kit for verifying interactions and creates an expanded map of the interactome in Caenorhabitis elegans.

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.

Chronic Care Model helps improve people's health and care

The Chronic Care Model has been shown to improve health outcomes and reduce costs for patients with chronic diseases. The model guides quality improvement efforts in medical practices, promoting team-based care, self-management support, and integrated decision support.

Smoking during pregnancy fosters aggression in children

A recent study published in Development and Psychopathology found that mothers who smoke during pregnancy are more likely to have children with aggressive behavior. The risk is higher among low-income women and those with a history of anti-social behavior.

Interpretation time for screening digital mammograms: Is it efficient?

A recent study by the American College of Radiology found that digital mammograms require nearly twice as long to interpret as film-screen screening mammograms. The study identified factors contributing to the difference in time, including the interpreting radiologist's identity and age of available studies.

Gamma-ray burst offers first peek at a young galaxy's star factory

Astronomers have identified gas molecules in the host galaxy of a gamma-ray burst, providing insight into star formation when the universe was about one-sixth its present age. The study found hydrogen and carbon monoxide absorption lines, suggesting a thick molecular cloud similar to those that spawn stars in our galaxy today.

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

New rainforest mapping technology gets huge support

A new approach, High-fidelity Imaging Spectroscopy (HiFIS), can determine the chemical and structural properties of rain forests in unprecedented detail over broad swaths. The technology has received a $5.2-million grant to advance its development, enabling detailed chemical mapping of species.

Factor has pivotal role in obesity, metabolic syndrome

Researchers at Baylor College of Medicine found that the COUP-TFII protein helps control fat cells and energy metabolism. Breeding mice with only one copy of the gene led to smaller fat cells and increased sensitivity to insulin, making it a potential target for diabetes treatment.

U of T physicists squeeze light to quantum limit

Researchers at University of Toronto have demonstrated a new technique to squeeze light to the fundamental quantum limit, increasing certainty in measurement. This finding has potential applications for next-generation atomic clocks, novel quantum computing and our understanding of the universe.

CalDigit TS4 Thunderbolt 4 Dock

CalDigit TS4 Thunderbolt 4 Dock simplifies serious desks with 18 ports for high-speed storage, monitors, and instruments across Mac and PC setups.

On a high-fat diet, protective gene variant becomes bad actor

A gene variant that protects against weight gain and insulin resistance becomes a bad actor on high-fat diets, new research suggests. Mice with the Ala12 variant show improved insulin sensitivity and better plasma lipid profiles on balanced diets but worsen these outcomes when fed a diet high in fat.

Big, old mice spread hantavirus

A recent study by University of Utah researchers identified bigger, older mice as the culprits behind hantavirus transmission. The study used fluorescent powders and radio transmitters to track contacts between mice, revealing that larger-bodied individuals were responsible for maintaining the disease in deer mouse populations.

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.

Old gastrointestinal drug slows aging, McGill researchers say

Researchers at McGill University discovered that clioquinol reverses Alzheimer's disease progression and may slow down the aging process by inhibiting CLK-1. The study suggests a potential new answer to the mechanisms behind three unrelated neurodegenerative disorders.

Argonne scientists reach milestone in accelerator upgrade project

Scientists at Argonne National Laboratory have successfully stopped and reaccelerated a stable ion through a newly constructed charge-breeder, bringing the CAlifornium Rare Isotope Breeder Upgrade (CARIBU) Project closer to completion. This achievement is a significant step towards extending the reach of ATLAS to include potentially hu...

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.

NASA's Fermi telescope unveils a dozen new pulsars

Fermi Gamma-ray Space Telescope has discovered 12 new gamma-ray-only pulsars and detected pulses from 18 others. The finds are challenging our previous understanding of how pulsars work, with gamma rays now believed to originate far above the neutron star.

Study yields clues about the evolution of epilepsy

Researchers at Rensselaer Polytechnic Institute have discovered that genetic predisposition and initial seizures can set the stage for later onset of epilepsy. The study used animal models to analyze seizure behavior and identified a genetic component that protects against long-lasting brain changes after initial seizures.