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Science News Archive July 2011


Page 15 of 25

The unsolved mystery of kava toxicity

A new review of scientific knowledge on kava reveals no consensus on its toxicity, with various theories including preparation methods and genetic differences. Pacific Island cultures have safely consumed kava for centuries, but Western countries have reported liver damage and banned or regulated kava products.

New elegant technique used for genomic archaeology

Researchers developed a new technique to analyze whole genomes from different populations, revealing continued genetic exchange between African and non-African populations after 60,000 years ago. The study provides fresh insights into human history from 10,000 to one million years ago.

Warwick wins $2.7 million research grant to help 'cooltronics'

The University of Warwick has been awarded a prestigious five-year, £1.7 million Platform Grant from the EPSRC to realise its exciting new developments in silicon-based technologies. This grant will enable researchers to further their work on 'cooltronics', zero-power electronics, and could be key to combating global climate change.

Apple iPhone 17 Pro

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

Rise in risk inequality helps explain polarized US voters

A new study suggests that changes in the labor market since the 1970s have led to more Republican and Democratic partisans, with fewer independents. The growth in partisanship is linked to people's current income and expectations of job security.

Twin ARTEMIS probes to study moon in 3-D

Two NASA probes, part of the THEMIS mission, will map the lunar surface and its magnetic field. The ARTEMIS mission aims to acquire a full 3D view of the moon's magnetic fields and surrounding environment.

Progesterone inhibits growth of neuroblastoma cancer cells

Scientists at Emory University School of Medicine have discovered that high doses of progesterone can inhibit the growth of neuroblastoma cancer cells. In laboratory research, progesterone was found to cut tumor growth in half over eight days without causing harm to healthy neurons.

A closer look at the placebo effect

A study examining placebo treatments in asthma patients found that they were equally effective as albuterol inhalers in relieving patient-reported symptoms. However, there was no objective impact on lung function, highlighting the subjective nature of the placebo effect.

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.

The future of cover crops

The study found that self-seeding winter cereal cover crops produced consistent growth using wheat cover crop and mechanical seed dispersal. This technique can lower costs and risks while extending ecological functions of cover crops beyond their normal termination dates.

UT faculty improving surgical outcomes for children, cancer patients

Researchers at the University of Texas at Austin are developing a novel 3D surface imaging technology to help cancer patients and children make informed decisions about reconstructive surgeries. The technology uses algorithms to analyze patient data and provide personalized simulations, aiming to improve cosmetic outcomes.

Talking about faith increases hospital patients' overall satisfaction

A new study found that hospital patients who had conversations about religion and spirituality with their healthcare team were the most satisfied with their overall care. Despite 20% of patients wanting these discussions but not having them, having a conversation led to higher patient satisfaction rates.

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.

Higher cigarette taxes don't deter all smokers

A Concordia University study found that higher cigarette taxes prompt low-and middle-income earners to quit smoking, but not wealthier smokers or those in their 20s to 40s. The research team analyzed data from Statistics Canada's National Population Health Survey and found that the middle-aged group is largely unresponsive to taxes.

Taking out a cancer's co-dependency

Scientists discovered a novel compound, piperlongumine, that selectively targets cancer cells' response to oxidative stress, inducing cell death without harming normal cells. The compound's effectiveness surpassed that of a commonly used chemotherapy drug, paclitaxel.

Research hopes to improve suits for fighting wildfires

A North Carolina State University researcher is working on a project to develop new testing technologies for evaluating gear worn by wildland firefighters. The goal is to create clothing that provides better balance between comfort and thermal protection. The team will use an instrumented manikin called RadMan to study radiant heat and...

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.

Spread of fungus-farming beetles is bad news for trees

A subset of fungus-farming ambrosia beetles is in the early stages of a global epidemic threatening economically important tree species. The beetles kill trees by triggering a strong immune response from the tree's own system, causing it to die of thirst.

Stem cell treatment may restore cognitive function in patients with brain cancer

A study published in Cancer Research suggests that stem cell therapy can improve cognitive function in patients with brain cancer who experience radiation-induced learning and memory loss. The treatment involved human neural stem cell transplants, which led to significant improvements in cognitive function compared to control rats.

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.

Fluke 87V Industrial Digital Multimeter

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

Pivotal study in Africa finds that HIV medications prevent HIV infection

The Partners PrEP Study demonstrates that antiretroviral medication tenofovir significantly reduces HIV infection risk in individuals at high risk. The study found that those who received daily tablets containing tenofovir or a combination of tenofovir and emtricitabine experienced fewer HIV infections than those who received a placebo.

Keeping up your overall health may keep dementia away

A recent study suggests that keeping up with general health factors, such as denture fit, vision, and hearing, may reduce the risk of developing dementia. The study found that each health problem increased a person's odds of developing dementia by 3.2 percent compared to those without such problems.

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.

Fewer aphids in organic crop fields

Researchers found that organic triticale fields had five times as many plant species and 20 times more pollinating insects than conventional fields. The organic fields also had three times as many natural enemies of aphids and five times fewer aphids, highlighting the importance of biodiversity in managing pests.

New method for making human-based gelatin

Scientists have created a new approach for producing large quantities of human-derived gelatin, potentially replacing up to 300,000 tons of animal-based gelatin. The novel method involves inserting human gelatin genes into yeast, allowing for controllable features and scalability for commercial use.

New research reveals soil microbes accelerate global warming

Soil microbes release more methane and nitrous oxide when atmospheric carbon dioxide increases, counteracting the cooling effects of plant growth. This feedback loop suggests that nature is not as efficient in slowing global warming as previously thought.

Health-care model improves diabetes outcomes, health

A new patient-centered medical home (PCMH) model has shown significant improvement in diabetes management, increasing adherence to evidence-based care guidelines and clinical outcomes. The study found a notable increase in patients receiving essential services such as yearly exams and vaccinations, leading to better health outcomes.

Meta Quest 3 512GB

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

Wind-turbine placement produces tenfold power increase, Caltech researchers say

Researchers at California Institute of Technology have discovered that optimizing wind turbine placement on a given plot of land can increase power output by an order of magnitude. By positioning turbines in close proximity and using vertical-axis wind turbines, the team found that energy loss due to aerodynamic interference between ne...

Omega-3 reduces anxiety and inflammation in healthy students

A study at Ohio State University found that omega-3 supplements decreased anxiety and inflammation in healthy medical students by 20% and 14%, respectively. The results suggest that increasing omega-3 intake through diet may be a more effective approach than supplementation for overall health benefits.

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.

Heart failure: Doing what your doctor says works

A study published in Journal of Cardiovascular Nursing found that heart failure patients who followed doctor's advice for self-care had lower levels of myocardial stress and systemic inflammation. This suggests that effective self-care behaviors can influence health outcomes through multiple cardioprotective means.

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.

Evolved stars locked in fatalistic dance

Scientists have discovered a pair of white dwarfs that are spiraling into each other at breakneck speeds, allowing them to test Einstein's theory of general relativity. The merger could also shed light on the origin of underluminous supernovae.

Large waist doubles risk of kidney disease mortality

A study by Loyola University Health System researcher Holly Kramer found that a large waist circumference doubles the risk of dying among kidney disease patients. Waist circumference was more strongly linked to mortality than BMI, a commonly used measure of obesity.

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.

Do women have what it takes?

A Northwestern University meta-analysis reveals that leadership continues to be viewed as culturally masculine, perpetuating barriers to women's advancement. The study finds that women are seen as less qualified or natural in leadership roles, and adopting masculine behaviors can lead to being viewed as inappropriate.

MUTE prototype displays excellent driving dynamics

MUTE's low curb weight of 400 kg enables efficient energy consumption, while its active torque vectoring differential enhances cornering ability and safety. The vehicle's design optimizes suspension, damping, and axle kinematics for improved handling.

Chile is more dangerous for Argentina than vice versa

Researchers found that 22 non-native species in Chile pose a high risk to Argentina, with yellow glandweed being the most dangerous. The study highlights the need for cooperation between neighboring countries to counter invasive plant species and prevent severe damage to agriculture.

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.

Diesel fumes pose risk to heart as well as lungs, study shows

Research by University of Edinburgh found that ultrafine particles from diesel exhaust fumes can impair blood vessel function, increasing the risk of heart attacks and strokes. The study suggests that environmental health measures to reduce emissions could save lives.

Study explains why men are at higher risk for stomach cancer

A recent study from MIT shows that estrogen dramatically lowers the rates of stomach cancer in male mice treated with the bacterium Helicobacter pylori. The researchers found that estrogen interferes with the recruitment and activity of immune cells, promoting inflammation and ultimately leading to gastritis and cancer.

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.

One-third of central Catalan coast is very vulnerable to storm impact

Researchers at the Polytechnic University of Catalonia developed a method to evaluate coastal storm vulnerability, finding that one-third of the region's coasts are at risk of severe flooding and erosion. The study used wave data from 1958-2008 to assess the vulnerability of a 50-kilometer stretch of coastline.

Research provides insight into new drug resistance in hospital microbes

Researchers discovered a new mechanism of resistance to daptomycin in enterococcus strains, which can be attributed to mutations in the cardiolipin synthase gene. This finding provides valuable information on how antibiotics work and could lead to the development of better treatments for resistant infections.