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Science News Archive July 2011 - Page 15


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.

SourceAmerican Chemical Society·JournalChemical Research in Toxicology·DateJul 13, 2011
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.

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.

SourceWellcome Trust Sanger Institute·JournalNature·DateJul 13, 2011

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.

SourceUniversity of Warwick·DateJul 13, 2011

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.

SourceOhio State University·JournalBritish Journal of Political Science·DateJul 13, 2011

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.

SourceUniversity of California - Berkeley·DateJul 13, 2011

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.

SourceEmory Health Sciences·JournalMolecular Medicine·DateJul 13, 2011
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.

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.

SourceBeth Israel Deaconess Medical Center·JournalNew England Journal of Medicine·DateJul 13, 2011

Light bulb phase-out offers new role for unsung heroes of electronics revolution

The US phase-out of 100-watt bulbs is driving growth for light-emitting diodes (LEDs) which have become ubiquitous in everyday life. LEDs now replace fluorescent lights as backlights in cell phones and laptops, and are poised to become an alternative to incandescents and fluorescents in home lighting.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateJul 13, 2011

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.

SourceAmerican Society of Agronomy·JournalAgronomy Journal·DateJul 13, 2011

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.

SourceUniversity of Texas at Austin·DateJul 13, 2011
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.

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.

SourceSpringer·JournalJournal of General Internal Medicine·DateJul 13, 2011

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.

SourceConcordia University·JournalInternational Journal of Environmental Research and Public Health·DateJul 13, 2011

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.

SourceBroad Institute of MIT and Harvard·JournalNature·DateJul 13, 2011

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...

SourceNorth Carolina State University·DateJul 13, 2011
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.

Message in a bottle: Teaching business skills in developing countries

Two Baylor professors developed 12 lessons using a Coke bottle to teach small business owners about demand, product placement, and marketing. The lessons were successful in attracting an audience and led to positive changes in one of the entrepreneurs' businesses.

SourceBaylor University·JournalOrganizational Behavior Teaching Review·DateJul 13, 2011

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.

SourceNorth Carolina State University·DateJul 13, 2011

Case Western Reserve restores breathing after spinal cord injury in rodent model

Researchers at Case Western Reserve University have restored breathing function in an adult rodent model of spinal cord injury by biologically regenerating lost nerve connections to the diaphragm. The enzyme-based technique showed promising results, with 80-100% breathing function restored and maintained for six months.

SourceCase Western Reserve University·JournalNature·DateJul 13, 2011

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.

SourceAmerican Association for Cancer Research·JournalCancer Research·DateJul 13, 2011
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.

When well-known flu strains 'hook up' dangerous progeny can result

A new study by University of Maryland researchers found that combining two flu strains, H1N1 and H9N2, can create a new, potentially deadly virus. The study suggests that this 'viral sexual reproduction' process could lead to the emergence of a new influenza pandemic.

SourceUniversity of Maryland·JournalProceedings of the National Academy of Sciences·DateJul 13, 2011

Structural factors integral to understanding girls' vulnerability to HIV in sub-Saharan Africa

A new study led by Johns Hopkins researchers found that community members link adolescent girls' increased HIV vulnerability to weak structural support systems. The study's findings highlight the need for policies and interventions to strengthen cultural, economic, educational, and legal structures to protect girls.

SourceJohns Hopkins Bloomberg School of Public Health·JournalSocial Science & Medicine·DateJul 13, 2011

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.

SourceUniversity of Washington School of Medicine/UW Medicine·DateJul 13, 2011
Apple iPhone 17 Pro

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

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.

SourceAmerican Academy of Neurology·JournalNeurology·DateJul 13, 2011

Pitt, Wake Forest team finds why stored transfusion blood may become less safe with age

A team of researchers has discovered that stored transfusion blood can accumulate 'free' hemoglobin and microparticles that react quickly with nitric oxide, leading to blood vessel constriction and hypertension. The findings suggest that a new approach to blood storage may be necessary to prevent complications.

SourceUniversity of Pittsburgh Schools of the Health Sciences·JournalCirculation·DateJul 13, 2011

Penn study shows link between immune system suppression and blood vessel formation in tumors

Research from the University of Pennsylvania suggests that ovarian cancer cells secrete chemical signals suppressing the immune system while promoting blood vessel growth. This discovery could lead to more effective cancer treatments by combining therapies targeting angiogenesis with those blocking immunosuppressive T-reg cells.

SourceUniversity of Pennsylvania School of Medicine·JournalNature·DateJul 13, 2011
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.

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.

SourcePensoft Publishers·JournalPLOS ONE·DateJul 13, 2011

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.

SourceAmerican Chemical Society·JournalJournal of Agricultural and Food Chemistry·DateJul 13, 2011

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.

SourceTrinity College Dublin·JournalNature·DateJul 13, 2011

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.

SourcePenn State·JournalThe Joint Commission Journal on Quality and Patient Safety·DateJul 13, 2011
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.

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...

SourceCalifornia Institute of Technology·JournalJournal of Renewable and Sustainable Energy·DateJul 13, 2011

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.

SourceOhio State University·DateJul 13, 2011
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.

Penn researchers show single drug and soft environment can increase platelet production

Researchers at the University of Pennsylvania have discovered that a single drug can induce bone marrow cells to quadruple platelet production. The study found that inhibiting myosin-II with the drug belebbistatin increases megakaryocyte growth, allowing them to produce more platelets in a soft environment.

SourceUniversity of Pennsylvania·JournalProceedings of the National Academy of Sciences·DateJul 13, 2011

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.

SourceUniversity of Pennsylvania School of Nursing·JournalJournal of Cardiovascular Nursing·DateJul 13, 2011

UAB researchers present a study on the psychological adaptation of adopted children

A study by UAB researchers reveals that adopted children who spend more time in a center are more likely to experience behavioral problems, depression, and weaker social skills. Resilience variables help counteract negative effects, but Eastern European children tend to have more difficulties adapting.

SourceUniversitat Autonoma de Barcelona·JournalThe Spanish Journal of Psychology·DateJul 13, 2011
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.

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.

SourceCenter for Astrophysics | Harvard & Smithsonian·JournalThe Astrophysical Journal Letters·DateJul 13, 2011
Meta Quest 3 512GB

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

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.

SourceLoyola Medicine·JournalAmerican Journal of Kidney Diseases·DateJul 13, 2011

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.

SourceNorthwestern University·JournalPsychological Bulletin·DateJul 13, 2011

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.

SourceTechnical University of Munich (TUM)·DateJul 13, 2011

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.

SourceHelmholtz Association·JournalBiological Invasions·DateJul 13, 2011
Fluke 87V Industrial Digital Multimeter

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

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.

SourceUniversity of Edinburgh·JournalEuropean Heart Journal·DateJul 13, 2011

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.

SourceMassachusetts Institute of Technology·JournalCancer Prevention Research·DateJul 13, 2011

Tsunami airglow signature could lead to early detection system

Researchers recorded tsunami airglow signature using camera system in Maui, Hawaii, one hour before the event. The observation confirms a theory that tsunamis can produce atmospheric gravity waves detectable by satellite imaging.

SourceUniversity of Illinois Grainger College of Engineering·JournalGeophysical Research Letters·DateJul 13, 2011
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.

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.

SourceSpanish Foundation for Science and Technology·JournalNatural Hazards and Earth System Sciences·DateJul 13, 2011

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.

SourceMass Eye and Ear·JournalAntimicrobial Agents and Chemotherapy·DateJul 13, 2011
Celestron NexStar 8SE Computerized Telescope

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