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Science News Archive April 2012


Page 19 of 29

U of I study: Lose body weight before gaining baby weight

A University of Illinois study found that obese mothers' placentas have an unhealthy nutrient supply, placing babies at risk for future health problems. Experts advise pregnant women to lose weight before conception to minimize the obesogenic environment.

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.

Multitasking – not so bad for you after all?

A study by Kelvin Lui and Alan Wong found that frequent media multitaskers outperformed light multitaskers in integrating visual and auditory information. This improvement was attributed to their ability to routinely take in information from multiple sources.

Determining a stem cell's fate

A team of researchers at Caltech has traced the developmental process that ensures certain stem cells become T cells. They identified key genes and regulatory proteins involved in this process, shedding light on how stem cells are committed to a specific cell fate.

Apple iPhone 17 Pro

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

Drastic changes needed to curb most potent greenhouse gas

A new study suggests that reducing nitrous oxide (N2O) emissions from the industrial and agricultural sectors by 50% is crucial to meet the IPCC's most aggressive strategy for climate change mitigation. The study found that a 50% reduction in meat consumption per person is necessary to stabilize atmospheric N2O concentrations.

Excessive worrying may have co-evolved with intelligence

High intelligence and worry both correlate with brain activity measured by choline depletion in subcortical white matter, suggesting co-evolution between the two traits. Worry may aid survival by causing individuals to avoid dangerous situations, leading to higher survival rates.

NASA Goddard engineers testing Webb Telescope's OSIM and BIA instruments

Several critical NASA components are being tested to ensure the success of the James Webb Space Telescope. The OSIM and BIA instruments will simulate the telescope's science cameras and spectrographs, while also verifying their functionality in cryogenic temperatures. This testing program is essential for the mission's success.

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.

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.

Rebuffing racial insults: How culture shapes our behavior

African American women are more likely to directly rebuff racist comments, while Asian American women may use indirect methods like choosing bad-tasting jellybeans as a form of revenge. This difference reflects deeply rooted cultural differences in conflict management and emotional display rules.

ONR taps research teams to help reduce jet noise

The Office of Naval Research is funding a project to reduce jet noise, which can cause hearing damage to Sailors and Marines. Eight research teams will develop noise-reduction technologies, measurement tools, and prediction models to dampen jet noise, resulting in safer environments for personnel.

ALMA reveals workings of nearby planetary system

The ALMA observatory has discovered a nearby planetary system with sharp-edged dust ring, indicating 'shepherding' planets that keep the disk within their gravitational effect. The planets are smaller than previously thought, about the size of Mars to a few times the Earth, and are among the coldest planets found orbiting a normal star.

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.

Pride and prejudice: Pride impacts racism and homophobia

A new University of British Columbia study reveals that pride directly influences racist and homophobic attitudes. Authentic pride boosts empathy, while hubristic pride exacerbates prejudice. The findings offer insights into the attitudes of leaders and shed light on human psychology.

Stem cells 'by default'

Researchers suggest that stem cells have intrinsic capacities for self-maintenance and evasion of differentiation. By analyzing current properties and characteristics of stem cells, the 'by default' hypothesis proposes that stem cells exist due to factors that repress cellular signals for specialization.

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.

Targeting glucagon pathway may offer a new approach to treating diabetes

A new study suggests that targeting the glucagon pathway could be an effective way to lower blood sugar levels without disrupting other functions of this hormone. Researchers found that blocking calcium signaling through CaMKII can regulate hepatic glucose production, leading to improved insulin sensitivity and reduced liver fat.

Resurfacing urban areas to offset 150 billion tons of CO2

A study estimates that resurfacing urban areas can provide a CO2 offset between 130 and 150 billion tonnes, equivalent to taking every car off the road for 50 years. This could also generate huge financial savings of $3300-$3800 billion dollars.

Decoding worm lingo

Researchers found that many nematodes communicate using the same types of small-molecule pheromones, revealing a universal nematode language. This discovery could lead to strategies to prevent unwanted nematode species and improve agricultural and healthcare industries.

Majority-biased learning

Researchers found that humans and chimpanzees tend to copy majority behaviour, while children consider both frequency and number of demonstrators. Orangutans, however, showed no such bias, possibly due to their solitary group structure. The study suggests a key difference in social learning mechanisms between humans, chimpanzees, and o...

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.

Policies, learning-by-doing played important role in reducing ethanol costs

A new study from the University of Illinois concludes that learning-by-doing played a significant role in reducing the processing costs of corn ethanol in the US. The study found that biofuel policies, which induced ethanol production beyond free-market levels, contributed to increased industry competitiveness over time.

Traffic harms Asturian amphibians

The study reveals that roads cause significant harm to midwife toad and palmate newt populations in Asturia, Spain. The results suggest that traffic alleviation measures can help protect the newts but are insufficient for the midwife toads.

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.

Exercise and attitude may be thermostat for hot flashes

Penn State researchers found that perceived control over hot flashes is a key factor in how exercise affects menopausal women. Women who felt they had more control over their hot flashes experienced fewer symptoms after physical activity. Cognitive behavioral therapy may also help some women feel more in control.

High levels of phthalates can lead to greater risk for type-2 diabetes

A study published in Diabetes Care found that high levels of phthalate metabolites are associated with an increased risk of developing diabetes. The research, conducted among over 1,000 elderly individuals, suggests a connection between environmental chemicals and the development of type-2 diabetes.

Athletic frogs have faster-changing genomes

A new study finds that athletic frogs tend to have faster-changing genomes, with the rate of evolution correlated with physical fitness. The research suggests that free radicals produced during exercise may cause wear and tear on DNA, leading to genetic changes.

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.

Volcanic plumbing provides clues on eruptions and earthquakes

Researchers have made significant breakthroughs in understanding volcanic plumbing systems, which could lead to improved predictions of eruptions. The team's study reveals that ground uplift occurred four months before an eruption due to increased pressure in one of the underground chambers.

Kinase test may yield big gains for drug-resistant cancers

A team from UNC Health Care has developed a broad-based test to measure the activation of protein kinases, enabling the measurement of drug resistance in cancer. The test can identify combinations of drugs that block resistance, offering personalized therapies for breast cancer.

Test links strains of common parasite to severe illness in US newborns

Researchers identified the most strongly associated strains with premature birth and severe birth defects, using a new blood test developed by NIAID. The study suggests that widespread screening and treatment of pregnant women infected with Toxoplasma gondii could prevent infants from suffering eye and brain damage.

Celestron NexStar 8SE Computerized Telescope

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

Genetic adaptation of fat metabolism key to development of human brain

A study by Uppsala University researchers found that humans have a unique genetic variant allowing for efficient production of Omega-3 and Omega-6 fatty acids from vegetable oils. This adaptation is linked to the development of modern human brain capacity but increases the risk of cardiovascular disease in today's life situation.

Study resolves debate on human cell shut-down process

Scientists at the University of Liverpool have resolved the debate on the mechanisms involved in human cell shut-down during division, finding that receptors can transport nutrients but are temporarily blocked. This discovery may lead to future studies on manipulating this process to prevent harmful infections.

Do monkeys know what others need?

Brown capuchin monkeys demonstrate empathetic perspective-taking by withholding food from a fellow monkey who has just eaten, suggesting they understand their physical needs. The study provides first evidence for this behavior in primates.

Meds ease depression in Parkinson's patients without worsening other symptoms

A new study published in Neurology found that antidepressant medications can effectively treat depression in Parkinson's patients without worsening their motor symptoms. The study, led by Irene Hegeman Richard, M.D., showed significant improvements in depression scores with paroxetine and venlafaxine, two commonly used antidepressants.

Meta Quest 3 512GB

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

New pregnancy risk for babies and moms

A new study reveals that overweight pregnant women with mildly elevated blood sugar levels are at a higher risk of adverse pregnancy outcomes than previously thought. These women, who do not have gestational diabetes or obesity, carry significant risks for their health and the health of their babies.

Pigeons' homing skill not down to iron-rich beak cells

A new study published in Nature has disproved the theory that pigeons' navigation skills are linked to iron-rich nerve cells in their beaks. Macrophages, specialized white blood cells, were found to contain tiny balls of iron instead, contradicting earlier research.

New method to prevent undersea ice clogs

Researchers at MIT have developed a new method to prevent undersea ice clogs by using passive coatings on pipe insides that inhibit methane hydrate adhesion. The coatings reduce hydrate adhesion to one-quarter of the amount on untreated surfaces, providing a simple and inexpensive solution.

Fragile X syndrome can be reversed in adult mouse brain

A recent study reverses many Fragile X syndrome symptoms in adult mice using a new compound CTEP. The study found that pharmacologic inhibition of mGlu5 receptor can correct FXS symptoms, including learning and memory deficits and auditory hypersensitivity.

Fluke 87V Industrial Digital Multimeter

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

Key to new antibiotics?

McMaster University researchers found a remarkable prevalence of antibiotic resistance bacteria isolated from Lechuguilla Cave, one of the deepest and largest caves in the world. The discovery suggests that there are far more antibiotics in the environment that could be used to treat currently untreatable infections.

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.

Foes appear larger, more muscular when holding a weapon

A recent study found that men who hold guns or large kitchen knives are perceived as taller and more muscular than those holding non-threatening objects. The researchers suggest that this pattern may reflect human psychology's tendency to associate size with danger and formidability.

Real-life scientific tail of the first 'electrified snail'

Researchers successfully implanted a biofuel cell in a snail, generating sustainable electrical micropower for extended periods without harming the animal. The long-lasting enzymes used induced an electric current by breaking down glucose and oxygen molecules.

Don't assume the sand is safe

Scientists developed reference guide for potentially harmful germs in sand to inform beach management decisions, with a focus on minimizing risk for children. The study found low levels of harmful microbes at one beach site, indicating the sand was safe for beachgoers.

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.

Hybrid copper-gold nanoparticles convert CO2

Researchers at MIT have developed hybrid copper-gold nanoparticles that can convert carbon dioxide into hydrocarbon fuels with significantly less energy than pure copper. The tiny particles, engineered to increase surface area and stability, have the potential to greatly reduce greenhouse gas emissions from powerplants.

Duck-billed dinosaurs endured long, dark polar winters

Researchers found bands of fast and slow growth in Edmontosaurus fossils, indicating periodic seasonal stresses. The study suggests these dinosaurs adapted to Arctic conditions by living year-round, rather than migrating to warmer regions.

Studies on resistance against influenza

Researcher Timpka investigates how different age groups are affected by the flu, with seasonal epidemics striking hardest in children and elderly. The study also explores theories on why this is the case, including the impact of early-life infections on immunity.