Bluesky Facebook Reddit Email

Science News Archive February 2007


Page 6 of 16

Apple iPhone 17 Pro

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

Riding the winds of change

The Inuit are adapting to climate change in coastal communities such as Arctic Bay, but the transfer of knowledge between old and young is becoming less relevant. The use of dogs versus snowmobiles for travel over sea ice is a significant issue due to changing ice behavior.

Are scientists making progress in being able to regenerate bone tissue?

Researchers have made progress in restoring bone function using bone tissue engineering, which uses stem cells to regenerate bone tissue. This technique has shown success in animal studies and holds promise for clinical applications, but further research is needed to overcome existing challenges.

Scientists warn of climate change risk to marine turtles

Rising temperatures could lead to extreme infant mortality and declines in nesting beaches across the USA, according to a study analyzing 26 years of loggerhead turtle nesting and climate data. Conservation efforts are recommended for protecting northern breeding grounds, as male turtles are essential for population sustainability.

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.

U of M study shows teens become less active as they grow older

Researchers found a significant decline in moderate to vigorous physical activity among teenagers, from 5.9 hours/week in early adolescence to 4.9 hours/week in midadolescence for girls. Meanwhile, sedentary behaviors like computer use increased substantially, associated with increased risk of obesity.

Multislice CT speeds the diagnosis of chest pain in the emergency room

A new multislice CT scan can quickly detect fatty blockages in the heart's arteries, ruling out heart attacks and reducing diagnostic time. This simple outpatient scan allows doctors to confidently send home patients with normal coronary arteries, while accurately identifying those with serious heart disease.

Plant-derived omega-3s may aid in bone health

A team of Penn State researchers found that plant-derived omega-3 polyunsaturated fatty acids (PUFA) may have a protective effect on bone health. The study, which included a controlled diet with three diets high in PUFA, showed significant decreases in biomarkers of bone resorption.

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.

Results of largest ever genome scan for autism out

A genome-wide study of 1,200 families with multiple cases of autism has identified a previously unidentified region on chromosome 11 and implicated genes affecting glutamate neurons. The findings provide new insights into the genetic basis of autism and offer potential routes to breakthroughs in treatments.

Health professionals would prioritize spending on the young over the old

A global survey of healthcare professionals found that they rank childhood immunization and cancer treatment for smokers lowest, while prioritizing spending on younger populations. The study highlights the disconnect between professional priorities and actual spending patterns in most countries.

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.

Sense and sensibility in short-term memory

A novel Brandeis University study confirms that sight and sound use similar neural mechanisms for encoding and retrieving short-term memories from both senses. The study found that the errors made in memory for sounds are the same types of errors made in memory for sight, suggesting a common brain process.

DNA analysis reveals rapid population shift among Pleistocene cave bears

A DNA study on ancient cave bear teeth found a sudden replacement of the mitochondrial DNA sequence around 28,000 years ago in the Ach Valley. The new genetic group is believed to have originated from neighboring bears who infiltrated the area after human migration and eventually became extinct.

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.

Largest genomic search finds genes that may contribute to autism

An international team of researchers has identified one gene and a previously unidentified region on chromosome 11 as potential contributors to autism. The study, published in Nature Genetics, is based on genetic samples from nearly 1,200 families with two or more children who have autism.

RNAi shows promise in gene therapy, Stanford researcher says

Researchers have made significant breakthroughs with RNAi gene therapy, showing its effectiveness in shutting down viruses that cause diseases such as hepatitis and HIV in mice. With three human trials underway, the technique may be on the verge of widespread use for treating various human diseases.

UI researcher cites need for a 'small view' of the environment

A UI researcher emphasizes the importance of understanding molecular processes in solving environmental issues, as demonstrated by the case of Antarctic ozone thinning. She advocates for further research on molecular assembly and disassembly to safely recycle materials from outdated computers.

Celestron NexStar 8SE Computerized Telescope

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

Flavanols in cocoa may offer benefits to the brain

Recent studies suggest that flavanol-rich cocoa can enhance brain blood flow, potentially improving cognitive function and learning. Researchers found significant correlations between flavanol consumption and reduced rates of heart disease and cancer among the Kuna Indians in Panama.

Preliminary results of largest scan of autism DNA information

Researchers from the Autism Genome Project have made significant discoveries about the genetic basis of autism, implicating previously unidentified regions and genes in chromosome 11 and neurexin 1. The study's findings hold promise for diagnosis and treatment breakthroughs.

Cancer cells more likely to genetically mutate

Researchers found that tumor tissue has random mutation rates up to 100 times higher than normal tissue from the same patient. This may explain why cells in a tumor have so many genetic mutations and could lead to ineffective chemotherapy treatments.

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.

AAAS releases video and first board consensus statement on climate change

The AAAS Board has released its first consensus statement on global climate change, confirming that human activities are causing the Earth's temperature to rise. The statement emphasizes the urgent need for action to address this growing threat to society, citing rapid melting of glaciers and sea level rises.

Universe offers 'eternal feast,' cosmologist says

According to physicist Andrei Linde, recent developments in cosmology have changed our understanding of the structure and fate of the universe. Inflationary theory suggests that our universe could emerge from as little as a milligram of matter or even nothing, with quantum fluctuations creating galaxies along the way.

Clemson research improves inkjet technology

Researchers from Clemson University have improved inkjet technology to produce live, beating heart cells more efficiently. This breakthrough enables precise placement of cells in soft tissue, a crucial step towards achieving function in the heart.

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.

Largest-ever search for autism genes reveals new clues

The largest search for autism genes to date has implicated components of the brain's glutamate chemical messenger system and a previously overlooked site on chromosome 11. Tiny variations in genes may heighten risk for autism spectrum disorders, with evidence pointing to gene variants affecting neurotransmitter systems.

Scientific literacy happens -- when students think for themselves

A new approach to teaching biology classes at Ohio State University has led to a four-fold increase in test scores among students who are given more freedom to think for themselves. By using real experiments and encouraging critical thinking, students were able to demonstrate a deeper understanding of biological concepts.

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.

Fetal heart-cell enzyme important in onset of heart failure

Researchers at the University of Pennsylvania School of Medicine discovered that an enzyme important in fetal heart-cell development regulates cardiac hypertrophy, a key step in congestive heart failure. The study found that inhibiting this enzyme can prevent the onset of cardiac hypertrophy and heart failure.

Green chemistry can help nanotechnology mature, Oregon professor says

A leading U.S. innovator in nanofabrication and assembly processes, James E. Hutchison, emphasizes the need for designing materials and processes that minimize hazard and waste in the production phase of nanotechnology. Green chemistry can sharply reduce toxic solvents and produce safer products with reduced unintended consequences.

Genome scan for familial autism finds two new genetic links

A five-year study involving over 1,200 families has identified two new genetic links to familial autism, with one gene associated with neurexin 1 and a previously unidentified region of chromosome 11 implicated. The findings suggest that autism has numerous genetic origins rather than a single cause.

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.

Jupiter's moon Europa should be NASA's next target, says ASU researcher

According to ASU researcher Ronald Greeley, Europa is the most promising candidate among four worlds beyond Earth that might contain life. The moon has a thick layer of water and organic minerals, making it an ideal target for NASA's next mission. Scientists hope to measure the ice shell's thickness using tidal flexing measurements.

Tobacco companies obstructed science, history professor says

A scientific consensus on the link between smoking and lung cancer emerged in the mid-1950s, but tobacco industry efforts to sow doubt and delay regulation persisted. Proctor's research shows that consumer letters and phone logs reveal widespread ignorance about tobacco's health risks.

New bird, bat species revealed by extensive DNA barcode studies

Researchers have assembled a genetic portrait of birdlife in the U.S. and Canada, identifying 15 new species that are nearly indistinguishable from human eyes and ears. The team also successfully logged DNA attributes of 87 bat species of Guyana, revealing six new species.

'Ten Commandments' could improve fisheries management

Researchers propose a holistic approach to fisheries management, emphasizing the need to consider entire ecosystems and monitor catch characteristics. The 'Ten Commandments' outline specific action items to improve sustainability and efficiency in marine management.

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.

Cancer that colonizes our bodies

Robert C. von Borstel presents cancer as an invasive process similar to species evolution, with mutations and selection driving its progression. He hopes his work will help people re-examine cancer in a new light.

Public agrees global warming exists, but divided over seriousness of problem

A majority of Americans agree with most scientists that the Earth is getting warmer, but they are uncertain about the seriousness of the problem. The uncertainty stems from a belief that scientists disagree about global warming, despite being on the same wavelength with the scientific community about the basics of the issue.

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 helping hand for our national obsession

A team of climate scientists will measure the influence of Greenland's atmosphere on Northern European weather, aiming to improve forecast accuracy. The research will also fill gaps in existing climate change models, enhancing long-term predictions.

Scientific literacy -- How do Americans stack up?

A recent study found that American adults have a limited understanding of scientific principles, with only 28% qualifying as scientifically literate. This is attributed to various factors, including the lack of general science courses in high schools and the reliance on informal science education resources.

Computer scientists join in search for ivory-billed woodpecker

A team of computer scientists from Texas A&M University and the University of California, Berkeley, have developed a robot called ACONE to scan skies for birds near Brinkley, Ark. The robot uses AI-powered object detection to identify potential ivory-billed woodpeckers.

Meta Quest 3 512GB

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

Stanford professor to discuss the ups and downs of 'team science'

Richard Zare emphasizes the importance of teamwork in scientific research, highlighting its ability to produce greater outcomes than individual efforts. He also acknowledges potential drawbacks, such as competition for funding and tenure, and advocates for a spirit of continuous learning.

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.

Energy insecurity -- a weapon of mass disruption?

Experts warn of energy insecurity's impact on US national security, driven by heavy oil and gas imports from hostile regions. The US needs to diversify its energy resources and invest in research and development to improve energy efficiency and reduce dependence on foreign sources.