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Science News Archive 2011 - Page 243


Page 243 of 311

Major advance in understanding how nanowires form

Researchers have gained a deeper understanding of how nanowires form, thanks to a new theoretical model. The discovery reveals that the shape of catalyst particles controls the growth of nanowires and their crystal structure.

SourceUniversity of Copenhagen·JournalPhysical Review Letters·DateMar 28, 2011

Cystic Fibrosis Foundation funds Marshall research

Dr. Hongwei Yu's lab will explore the factors controlling mucus overproduction and develop a treatment to inhibit alginate biofilm formation in CF patients. The grant aims to improve treatment of bacterial infections and enhance quality of life for CF patients.

SourceMarshall University Research Corporation·DateMar 28, 2011
Apple iPhone 17 Pro

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

Video skilled the students so far

Research by Geoff Hilton found that video production improved student understanding of scientific concepts, particularly when rehearsing for an audience. The study revealed that students who created videos showed better learning outcomes compared to those who produced written posters.

SourceInderscience Publishers·JournalInternational Journal of Innovation and Learning·DateMar 28, 2011

Johns Hopkins team identifies genetic link to attempted suicide

A study of nearly 2,700 adults with bipolar disorder found a genetic risk factor on chromosome 2 associated with increased attempts at self-harm. Genetic variants in the region were linked to a higher likelihood of attempting suicide, with those having two copies being almost three times as likely.

SourceJohns Hopkins Medicine·JournalMolecular Psychiatry·DateMar 28, 2011

Deciphering hidden code reveals brain activity

A new approach to studying the brain uses a mathematical sequence to strengthen fMRI data, revealing how nerve cells represent information. This method measures changes in brain responses and corrects an important limitation of fMRI, making it more powerful than before.

SourceUniversity of Pennsylvania School of Medicine·JournalNeuroImage·DateMar 28, 2011
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.

Bones conjure Yellowstone's ecological ghosts

A study by Joshua H. Miller analyzed the bones of Yellowstone's wildlife to understand population changes over time. The research found that native species populations have remained relatively stable, while others have expanded or contracted significantly.

SourceUniversity of Chicago·JournalPLOS ONE·DateMar 28, 2011

Other mental health medications no safer than atypical antipsychotics in nursing home residents

A Canadian study of over 10,900 nursing home patients found that conventional antipsychotics, antidepressants, and benzodiazepines carried higher risks of death, femur fractures, and heart failure compared to atypical antipsychotics. The findings suggest a need for caution when prescribing these medications in this population.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateMar 28, 2011

GPS study shows wolves more reliant on a cattle diet

Researchers found wolves rely on cattle for up to 45% of their summer diet in southwestern Alberta, shifting from wild prey in non-grazing seasons. Cattle make up a significant portion of wolf packs' scavenged feeding events, often located near bone yards and grazing areas.

SourceUniversity of Alberta·JournalFrontiers in Ecology and the Environment·DateMar 28, 2011
Sky-Watcher EQ6-R Pro Equatorial Mount

Sky-Watcher EQ6-R Pro Equatorial Mount provides precise tracking capacity for deep-sky imaging rigs during long astrophotography sessions.

Smarter memory device holds key to greener gadgets

Researchers at the University of Edinburgh have developed a tiny device that improves on existing forms of memory storage by using a mechanical arm to translate data into electrical signals. This allows for much faster operation and reduced energy consumption compared to conventional methods.

SourceUniversity of Edinburgh·JournalNature Communications·DateMar 28, 2011

Indications of Alzheimer's disease may be evident decades before first signs of cognitive impairment

Researchers at Mount Sinai School of Medicine found that patients with Alzheimer's disease have lower glucose utilization in the brain, detectable approximately 20 years prior to symptoms. The study suggests that novel therapies could prevent the onset of Alzheimer's by addressing mitochondrial impairment.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalTranslational Neuroscience·DateMar 28, 2011

Mothers' hard work pays off with big brains for their babies

A new study published in Proceedings of the National Academy of Sciences reveals that brain growth in babies is linked to maternal investment, including duration of pregnancy and breastfeeding period. The research suggests that longer pregnancies and breastfeeding periods result in bigger brains for babies.

SourceDurham University·JournalProceedings of the National Academy of Sciences·DateMar 28, 2011

Study shows hunger hitting closer to home

A new study identifies 44 high-risk counties with high food insecurity and prices, requiring an estimated $56 monthly boost per person to meet food needs. The study highlights disproportionate impacts of hunger on Latino and American Indian populations.

SourceUniversity of Illinois College of Agricultural, Consumer and Environmental Sciences·DateMar 28, 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.

International 50-year mortality trends in children and young people reveal an inadequate response to the health problems and causes of death in adolescents, particularly young men

The Lancet study finds that death rates in young people are now higher than in children across most high- and low-income countries, with injury being a major cause of death in young men. The authors highlight the lack of interventions and resources to tackle contemporary health problems faced by young people.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMar 28, 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.

To meet, greet or retreat during influenza outbreaks?

A new model suggests that severing social interactions may not be the best approach to prevent disease spread during influenza outbreaks. The researchers found that a moderate increase in the price of interpersonal contact can lower the peak prevalence of the disease while increasing overall societal utility.

SourceNational Institute for Mathematical and Biological Synthesis (NIMBioS)·JournalProceedings of the National Academy of Sciences·DateMar 28, 2011

New laser technology prepares to revolutionize communications

Researchers at Stevens Institute of Technology have developed a new laser technology that can transmit data through open space, enabling high-speed free space communications. The technology uses frequency modulation to reduce environmental interference and achieve speeds of up to 100 GHz.

SourceStevens Institute of Technology·JournalApplied Physics Letters·DateMar 28, 2011

Unlocking the secrets of Heritage Smells

A three-year project led by the University of Strathclyde aims to create portable devices that can analyze air samples from valuable items without touching them. The technology uses 'sniffing' artefacts to understand the composition and condition of objects, with potential applications for museums and collectors.

SourceUniversity of Strathclyde·DateMar 28, 2011

India releases tiger numbers as experts convene

India has released its first updated tiger population numbers since 2007, estimating 1,706 tigers, an increase of 225 from the previous count. The figure includes an additional reserve in the Sundarbans, resulting in a corrected total of 1,636.

SourceWorld Wildlife Fund·DateMar 28, 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.

Radiation from Japan detected in Cleveland

Researchers at Case Western Reserve University detected tiny amounts of Iodine 131 from Japan in Cleveland rainwater, with levels estimated as one-tenth that of natural background radiation. The isotope was found in rainwater collected on a campus roof and is being seen worldwide

SourceCase Western Reserve University·DateMar 28, 2011

Certain breast cancer patients worry excessively about recurrence

A new study found that certain women with early-stage breast cancer experience excessive worrying about cancer recurrence, affecting medical care and quality of life. The research identified factors associated with high levels of worry, including younger age, employment, pain, fatigue, and radiation treatment.

SourceWiley·JournalCancer·DateMar 28, 2011

Childhood psychological problems have long-term economic and social impact, study finds

A new study found that childhood psychological problems can have significant negative impacts on an individual's life, including reduced earnings and decreased chances of establishing long-lasting relationships. The study, which followed a group of British residents for 50 years, found that family income was approximately one-fourth lo...

SourceRAND Corporation·JournalProceedings of the National Academy of Sciences·DateMar 28, 2011

Predicting serious drug side effects before they occur

A team of researchers has developed a new model that uses artificial neural networks to predict adverse drug reactions (ADRs) among 10,000 observations with 99.87% accuracy. The technology has the potential to save lives by identifying potential ADRs at an early stage of drug development and marketing.

SourceInderscience Publishers·JournalInternational Journal of Medical Engineering and Informatics·DateMar 28, 2011

Human virus linked to deaths of endangered mountain gorillas

A new study finds that a human respiratory virus has killed two mountain gorillas in Rwanda, confirming the risk of disease transmission between humans and animals. The virus, human metapneumovirus (HMPV), was detected in both gorillas, highlighting the need for increased conservation efforts to protect these endangered animals.

SourceUniversity of California - Davis·JournalEmerging Infectious Diseases·DateMar 28, 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.

Study illuminates the 'pain' of social rejection

A new study by the University of Michigan demonstrates that brain regions activated during physical pain are also active in individuals experiencing intense social rejection. The research found a neural overlap between the two experiences, which may help explain why people describe feelings of social rejection as 'painful'.

SourceUniversity of Michigan·JournalProceedings of the National Academy of Sciences·DateMar 28, 2011

Russian boreal forests undergoing vegetation change, study shows

The Russian boreal forest, the world's largest continuous expanse of forest, is experiencing a rapid shift in vegetation types as temperatures rise. This leads to an increase in evergreen conifers and a decline in larch trees, resulting in a northward progression of evergreens and a retreat of larch forests.

SourceUniversity of Virginia·JournalGlobal Change Biology·DateMar 28, 2011

Next-generation chemical mapping on the nanoscale

Scientists have developed a new method for high-resolution chemical imaging on the nanoscale, providing detailed information about molecular chemistry and interactions. This technique allows researchers to decipher the functionality of nanostructures with rich detail.

SourceDOE/Lawrence Berkeley National Laboratory·JournalNano Letters·DateMar 28, 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.

Seeing and experiencing violence makes aggression 'normal' for children

Children who witness or experience violence are more likely to engage in aggression against others, as they perceive violence as a common and acceptable way to resolve conflicts. This study found that witnessing or being victimized by violence increases aggression six months later.

SourceSAGE·JournalSocial Psychological and Personality Science·DateMar 28, 2011

How do plants fight disease?

Researchers have discovered how plant pathogens attack soybeans by reducing isoflavone production. Plants respond with a surge in isoflavone production, sparking a counterattack from the pathogen. This complex interaction may hold key to developing effective disease treatments and preventing crop losses.

SourceUniversity of California - Riverside·JournalCell Host & Microbe·DateMar 28, 2011

Demographics cloud optimism on black violent crime decrease

Researchers found that demographic trends and statistical aberrations may skew statistics on a recent drop in black violent crime. Adjusting for the Hispanic effect revealed little overall change in the black percentage of violent crime, with slight increases in assault and homicide rates.

SourcePenn State·JournalCriminology·DateMar 28, 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.

Negative attitudes toward fat bodies going global, study finds

A cross-cultural study found negative attitudes toward fat bodies in every location surveyed, revealing a rapid 'globalization of fat stigma' and a shift away from traditional fat-positive values. The study suggests that newer forms of media and public health campaigns may be driving this change.

SourceUniversity of Chicago Press Journals·JournalCurrent Anthropology·DateMar 28, 2011

TU Delft identifies huge potential of nanocrystals in fuel cells

Researchers at TU Delft have discovered that adding nanocrystals to solid electrolyte material can significantly increase the efficiency of fuel cells. The addition creates more space in the network, allowing protons to move freely and improving conductivity.

SourceDelft University of Technology·JournalAdvanced Functional Materials·DateMar 28, 2011
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.

'Spicing' up your love life possible, study finds

A new scientific review of natural aphrodisiacs found that panax ginseng, saffron, and yohimbine improved human sexual function. The study also found that muira puama, maca root, and chocolate report increased sexual desire in people. However, their effects on sexual arousal and satisfaction are not supported.

SourceUniversity of Guelph·JournalFood Research International·DateMar 28, 2011

Early indications of Parkinson's disease revealed in dream sleep

Researchers found that Parkinson's sufferers exhibited work and health indications eight years before diagnosis, highlighting REM sleep behavior disorder as a potential early marker. The study suggests that intervening earlier could lead to improved treatment outcomes.

SourceUniversity of Copenhagen·JournalJournal of Neurology·DateMar 28, 2011

Debut of the first practical 'artificial leaf'

Scientists have developed the first practical artificial leaf that can mimic photosynthesis, converting sunlight and water into electricity. The device is made of inexpensive materials and works stably, with the potential to provide affordable power for homes in developing countries.

SourceAmerican Chemical Society·DateMar 27, 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.

The gene processes that drive acute myeloid leukaemia

A study identified three critical steps to transform normal blood cells into leukaemic ones, each subverting a different cellular process. The researchers found that NPM1 mutation is a key event in acute myeloid leukaemia development and can cooperate with other mutations to cause the disease.

SourceWellcome Trust Sanger Institute·JournalNature Genetics·DateMar 27, 2011

Advanced technology reveals activity of single neurons during seizures

A study by Massachusetts General Hospital and Brown University found that seizures begin with diverse neuronal activity, rather than synchronized activity. The researchers observed pre-seizure changes in neuronal activity and detected changes before seizures began in most patients.

SourceMassachusetts General Hospital·JournalNature Neuroscience·DateMar 27, 2011
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.

A possible new target for treatment of multiple sclerosis

Scientists have discovered a previously unknown type of axonal degeneration called focal axonal degeneration (FAD), which is responsible for damage to nerve cells in multiple sclerosis. FAD can be reversed if recognized and treated early, suggesting a potential target for therapeutic intervention.

SourceLudwig-Maximilians-Universität München·JournalNature Medicine·DateMar 27, 2011

Walnuts are top nut for heart-healthy antioxidants

A new study by Joe Vinson ranks walnuts as the No. 1 nut in terms of healthful antioxidants, with nearly twice as much antioxidants as other commonly consumed nuts. Walnuts contain a combination of high-quality protein, vitamins, minerals, dietary fiber and are dairy- and gluten-free.

SourceAmerican Chemical Society·DateMar 27, 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.

Structure of DNA repair complex reveals workings of powerful cell motor

Researchers at Scripps Research Institute have made a groundbreaking discovery about the structure of the MRN DNA repair complex, revealing its powerful molecular motor workings. The finding has implications for designing non-toxic drugs to treat disorders such as cancer and cystic fibrosis.

SourceScripps Research Institute·JournalNature Structural & Molecular Biology·DateMar 27, 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.

'Nano-bricks' may help build better packaging to keep foods fresher longer

Scientists report on a new material called nano-bricks that combines montmorillonite clay with polymer materials to create an eco-friendly, transparent coating. The coating can improve the shelf life of foods and beverages by slowing gas loss and preventing spoilage, making it a potential alternative to current packaging materials.

SourceAmerican Chemical Society·DateMar 27, 2011

Will we hear the light?

Researchers at the University of Utah discovered that invisible infrared light can activate rat heart cells and toadfish inner-ear cells, sparking potential breakthroughs in cochlear implants for deafness. The study also raises possibilities for optical pacemakers that use infrared signals instead of electrical signals.

SourceUniversity of Utah·JournalThe Journal of Physiology·DateMar 27, 2011