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Science News for July 21, 2011


Hospital bacteria outbreak linked to nasal spray

A bacterial outbreak of Burholderia cepacia complex was linked to contaminated nasal spray products, leading to a national recall. The investigation highlighted the need for improved testing protocols in the production and distribution of over-the-counter pharmaceuticals.

SourceSociety for Healthcare Epidemiology of America·JournalInfection Control and Hospital Epidemiology·DateJul 21, 2011

Study: Subsidizing wages at long-term care facilities would cut turnover

A new study finds that subsidizing caregivers' wages can reduce worker turnover rates by one-third, improving the quality of experience for clients. The research uses data from group homes for persons with developmental disabilities to perform a cost-benefit analysis of wage subsidy policies.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalJournal of Disability Policy Studies·DateJul 21, 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.

Metabolic syndrome increases risk of both major types of primary liver cancer

A large-scale study found metabolic syndrome significantly increases risk of developing hepatocellular carcinoma and intrahepatic cholangiocarcinoma, two major types of primary liver cancer. Metabolic syndrome was present in 37% of persons who developed HCC and 30% of those who developed ICC, compared to 17% of those without cancer.

SourceWiley·JournalHepatology·DateJul 21, 2011

Grazing management effects on stream pollutants

A study by Iowa State University found that grazing management practices can greatly reduce the amount of sediment, phosphorus, and pathogens deposited into pasture streams. Simple and practical techniques can be implemented to minimize pollution while allowing cattle to graze on pasture stream banks.

SourceAmerican Society of Agronomy·JournalJournal of Environmental Quality·DateJul 21, 2011

Agilent Technologies and A*STAR launch all-in-one drug screening platform

A*STAR and Agilent launch an integrated drug screening platform, enabling high-throughput screening and automation of compound management and assay plate preparation. The partnership accelerates medical solution development and strengthens biomedical research capabilities.

SourceAgency for Science, Technology and Research (A*STAR), Singapore·DateJul 21, 2011
Apple iPhone 17 Pro

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

UCI-led butterfly study sheds light on convergent evolution

A team of international researchers led by UC Irvine's Robert Reed has identified a single gene called optix responsible for red wing color patterns in various passion vine butterfly species. This breakthrough discovery sheds light on how mimicry and convergent evolution occur at a genetic level.

SourceUniversity of California - Irvine·JournalScience·DateJul 21, 2011

Forest fungus factory

A University of Vermont scientist has developed a bio-pesticide using an insect-killing fungus and sweet whey to reduce the growth rate of hemlock woolly adelgid. The treatment showed promising results in trials, with a 50% reduction in pest population in infested trees.

SourceUniversity of Vermont·DateJul 21, 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.

Diamonds pinpoint start of colliding continents

Researchers analyzed data from over 4,000 mineral inclusions in diamonds to determine that the Wilson cycle of plate tectonics began around 3 billion years ago. This marks the start of the process that shaped the Earth's continental crust and led to mountain building and ocean basin closures.

SourceCarnegie Institution for Science·JournalScience·DateJul 21, 2011

MIT: Inside the innards of a nuclear reactor

Researchers at MIT have developed tiny robots to inspect underground pipes in nuclear reactors, detecting corrosion and radioactive leaks. The robots can withstand extreme environments and transmit images in real-time, enabling safer operation of aged reactors.

SourceMassachusetts Institute of Technology·DateJul 21, 2011

Chance favors the concentration of wealth, U of M study shows

A University of Minnesota study found that chance consistently pushes wealth into the hands of a few individuals, leading to dramatic concentration of wealth over time. The researchers' model, published in PLOS ONE, suggests that high variation among individual return rates accelerates wealth concentration.

SourceUniversity of Minnesota·JournalPLOS ONE·DateJul 21, 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.

Bacterial attack strategy uses special delivery of toxic proteins

Bacteria Pseudomonas aeruginosa employs a unique secretion system to break down its opponents' cell walls, causing their breakdown. The bacteria protects itself from this attack by using immunity proteins that counteract the effects of toxic proteins it secretes.

SourceU.S. National Science Foundation·JournalNature·DateJul 21, 2011

Dolphins' 'remarkable' recovery from injury offers important insights for human healing

Researchers explore dolphins' remarkable ability to heal from shark bites with minimal pain or infection, proposing that blubber contains antimicrobial compounds. The dolphin's healing process is similar to regeneration, where tissues are knitted together with existing fabric, offering new perspectives for human injury care.

SourceGeorgetown University Medical Center·JournalJournal of Investigative Dermatology·DateJul 21, 2011

Do we buy cosmetics because they are useful or because they make us feel good?

A study by UPV/EHU shows that people prioritize emotional reasons over usefulness when buying cosmetics. Women's negative emotions about their appearance drive their purchasing decisions. The study highlights the importance of addressing these negative feelings through persuasive marketing strategies focused on emotional aspects.

SourceSpanish Foundation for Science and Technology·JournalAFRICAN JOURNAL OF BUSINESS MANAGEMENT·DateJul 21, 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.

NASA satellite video and images show Dora become a major hurricane

Hurricane Dora's eye was visible on multiple NASA satellites, including Aqua and GOES-11, providing forecasters with clear views of the storm's intensification. The National Hurricane Center expects some weakening by tonight and rapid weakening on Friday as Dora battles wind shear and cooler waters.

SourceNASA/Goddard Space Flight Center·DateJul 21, 2011

Minority participants crucial to effective aging studies

The Gerontological Society of America recommends including ethnically diverse populations in aging research. Minority participants are key to developing recruitment and retention methods that address unique cultural and sociopolitical challenges.

SourceThe Gerontological Society of America·JournalThe Gerontologist·DateJul 21, 2011

Parasites help reveal new ecological rules

Scientists at UC Santa Barbara have discovered two general rules for ecosystem abundance: one based on body size and food chain position, and another that biomass production is independent of animal size or type.

SourceUniversity of California - Santa Barbara·JournalScience·DateJul 21, 2011

Optimism associated with lower risk of having stroke

A new study suggests that people with higher levels of optimism may be less likely to have a stroke. The research found that each point increase in optimism corresponded to a 9 percent decrease in acute stroke risk over a two-year follow-up period.

SourceAmerican Heart Association·DateJul 21, 2011

Hepatitis B vaccination for health care students lags behind recommendations

A study found that only 59.8% of health care students had documentation of complete hepatitis B vaccination, while 83.8% were protected against infection when tested for antibodies. The rates are lower than the US government's Healthy People 2010 goal of 90% hepatitis B vaccination coverage among health care workers.

SourceSociety for Healthcare Epidemiology of America·JournalInfection Control and Hospital Epidemiology·DateJul 21, 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.

Chronic pain in homeless people not managed well: Study

A study by St. Michael's Hospital found that nearly half of homeless people with chronic pain use street drugs to treat their condition, highlighting the need for improved approaches to managing chronic pain in this population. The study also highlights the importance of community outreach programs and education for healthcare provider...

SourceSt. Michael's Hospital·JournalBMC Family Practice·DateJul 21, 2011

Link between competing phases in cuprates leads to new theory

Scientists have discovered a link between two competing states of a cuprate superconductor and developed a mathematical theory to describe their relationship. The new theory should help predict the behavior of the material under varying conditions, shedding light on its potential for improving energy efficiency and storage.

SourceDOE/Brookhaven National Laboratory·JournalScience·DateJul 21, 2011

Stronger social safety net leads to decrease in stress, childhood obesity

Research by Craig Gundersen, a University of Illinois economist, finds that strengthening the social safety net can lead to a decrease in childhood obesity. The study suggests that programs like SNAP play a vital role in reducing psychosocial stressors for low-income families.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalObesity Reviews·DateJul 21, 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.

Chromosome number changes in yeast

Researchers found that yeast chromosome complement has decreased in all except one event, a whole genome duplication, where chromosomes fused or broke and recombined. This study sheds light on the evolution of chromosome complements in yeast and other organisms.

SourcePLOS·JournalPLOS Genetics·DateJul 21, 2011

'Freaky mouse' defeats common poison

A Rice University study reveals that European house mice have developed resistance to warfarin through two distinct processes: point mutation and horizontal gene transfer. Algerian mice, a desert-dwelling species, are believed to have passed the resistant genome into house mice in Spain or North Africa.

SourceRice University·JournalCurrent Biology·DateJul 21, 2011

Proteins enable essential enzyme to maintain its grip on DNA

Researchers at Ohio State University identified a family of proteins that close a critical gap in RNA polymerase, enabling it to maintain its grip on DNA and activate genes. This discovery has implications for antibiotic development and could contribute to understanding gene expression in all living organisms.

SourceOhio State University·JournalMolecular Cell·DateJul 21, 2011

Smartphone making your eyes tired?

A new study published in the Journal of Vision found that viewers experience more comfort when stereo 3D content is placed behind a screen, rather than in front of it. The researchers observed increased discomfort and fatigue among participants who viewed content in front of the screen.

SourceAssociation for Research in Vision and Ophthalmology·JournalJournal of Vision·DateJul 21, 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.

Breastfeeding may prevent asthma

Research published in the European Respiratory Journal found that children who were exclusively breastfed for 6 months had a reduced risk of developing asthma-related symptoms. The study also showed that the longer duration of breastfeeding was associated with fewer wheezing episodes.

SourceEuropean Respiratory Society·JournalEuropean Respiratory Journal·DateJul 21, 2011

UNC researchers identify seventh and eighth bases of DNA

Researchers at UNC School of Medicine have discovered the seventh and eighth bases of DNA, called 5-formylcytosine and 5-carboxylcytosine. These modified bases are thought to play a role in DNA demethylation and stem cell reprogramming.

SourceUniversity of North Carolina Health Care·JournalScience·DateJul 21, 2011

Working mothers and the effects on children

A new study by Dr Anne McMunn and researchers from the International Centre for Lifecourse Studies in Society and Health found that working mothers have no significant negative impact on their children's social and emotional development. In fact, children with both parents in paid employment showed better socio-emotional outcomes than ...

SourceEconomic & Social Research Council·DateJul 21, 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.

Skin sentry cells promote distinct immune responses

A new study reveals that subsets of dendritic cells in the skin can promote unique and opposite immune responses against the same type of infection. The research highlights the critical role of dendritic cells in initiating an effective immune response.

SourceCell Press·JournalImmunity·DateJul 21, 2011

Gardening in the brain

Research reveals microglia cells prune connections between neurons, shaping brain wiring. The discovery could help understand autism and other neurodevelopmental disorders.

SourceEuropean Molecular Biology Laboratory·JournalScience·DateJul 21, 2011

With secondhand gene, house mice resist poison

Researchers discover house mice acquired warfarin resistance from Algerian mice through interbreeding, highlighting multiple pathways to trait evolution. This unusual process helps explain rodents' ability to resist poison and informs strategies for controlling evolved resistances.

SourceCell Press·JournalCurrent Biology·DateJul 21, 2011

Targeting toxin trafficking

Researchers discovered that many proteins are required for maximum toxicity of ricin and PE, with differing requirements at multiple levels. Understanding toxin trafficking may lead to designing treatments targeting these toxins and potential synergistic therapies.

SourceCell Press·JournalDevelopmental Cell·DateJul 21, 2011

Study suggests obesity accelerates progression of cirrhosis

A recent study found that increased body mass index (BMI) is an independent predictor of clinical decompensation in patients with compensated cirrhosis. The researchers suggest that weight reduction may improve patient outcomes and that measures to reduce BMI could improve the prognosis for patients with advanced liver disease.

SourceWiley·JournalHepatology·DateJul 21, 2011
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.

1 in 4 gay/lesbian high school students are homeless

A study by Boston Children's Hospital found that 1 in 4 lesbian or gay teens and 15 percent of bisexual teens are homeless. Among homeless teens, those who were gay, lesbian, or bisexual (GLB) were consistently more likely to be unaccompanied than heterosexuals.

SourceBoston Children's Hospital·JournalAmerican Journal of Public Health·DateJul 21, 2011

As agricultural riches waylay pollinators, an endangered tree suffers

Researchers discovered that trees in Chilean forests relying on hoverflies for pollination fare better when separated by resource-poor pine plantations than by agricultural lands. The 'Circe Principle' explains how abundant resources can slow or prevent pollinator movement, challenging existing conservation models.

SourceCell Press·JournalCurrent Biology·DateJul 21, 2011

Chemists create molecular flasks

Chemists have created molecular flasks that can house other molecules, allowing for the isolation of certain chemical reactions and potential control over chemical reactivity. The flasks are self-assembling and take the shape of a truncated octahedron, with the potential to create new materials with unique properties.

SourceU.S. National Science Foundation·JournalScience·DateJul 21, 2011

Repairing our inner clock with a 2-inch fish

A team of researchers has identified a common mechanism between humans and zebrafish that regulates the circadian system. The discovery, published in PLoS Biology, could lead to new treatments for mental illness, metabolic diseases, and sleep disorders.

SourceAmerican Friends of Tel Aviv University·JournalPLOS Biology·DateJul 21, 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.

Researchers stumble on colorful discovery

Researchers have discovered modified rhodium that changes color in response to different gases, including nitrogen, oxygen, and carbon monoxide. This finding could lead to the development of more sensitive air quality sensors.

SourceQueen's University·JournalAngewandte Chemie International Edition·DateJul 21, 2011

OSC lifts OSU land speed racer toward 400-mph goal

The Buckeye Bullet team, with the Ohio Supercomputer Center, is developing a new electric land speed vehicle to surpass 400 mph. They're using computational fluid dynamics and large-scale simulations to optimize the aerodynamic design and minimize shock waves.

SourceOhio Supercomputer Center·DateJul 21, 2011

Fingerprinting fugitive dust

Researchers at USDA's Agricultural Research Service (ARS) have created a unique fingerprinting method to identify the source of soil, distinguishing between soils from rural roads and agricultural fields. This innovation has significant implications for managing wind erosion and promoting sustainable agriculture.

SourceUnited States Department of Agriculture - Research, Education and Economics·JournalSoil Biology and Biochemistry·DateJul 21, 2011

INFORMS: CARE positions disaster relief with promising discipline of humanitarian logistics

A team at Georgia Tech developed an operations research model that helped CARE International pick three locations worldwide to supply relief quickly to victims of earthquakes, floods, and other natural disasters. The model considered capacity constraints and recommended a gradual roll-out plan, enabling CARE to reduce response time, pr...

SourceInstitute for Operations Research and the Management Sciences·JournalInterfaces·DateJul 21, 2011
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.

Blue collar workers work longer and in worse health than their white collar bosses

A study by Columbia University's Mailman School of Public Health found that blue collar workers are more likely to suffer from arthritis and reduce their quality of life due to health conditions. The research highlights the need for enhanced federal programs, including disability and health insurance, to support these workers.

SourceColumbia University's Mailman School of Public Health·JournalAmerican Journal of Public Health·DateJul 21, 2011

An eye gene colors butterfly wings red

Researchers found that a single gene, optix, underlies the diverse red wing patterns of Heliconius butterflies across the Americas. The gene's regulation leads to subtle differences in wing patterns between species.

SourceSmithsonian Tropical Research Institute·JournalScience·DateJul 21, 2011

BUSM/BMC researchers awarded $3.5 million grant from the NIDA

Researchers from BUSM and BMC will implement a clinical model to coordinate narcology and HIV systems of care in Russia, aiming to increase engagement in medical care among HIV-infected IDUs. The LINC project aims to address the missed opportunity of delayed or non-receipt of HIV medical care in Russia.

SourceBoston University School of Medicine·DateJul 21, 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.

Study: Regulatory hurdles hinder biofuels market

A new study by University of Illinois researchers highlights the challenges facing the commercialization of emerging liquid biofuels, which could enhance energy security and reduce greenhouse gas emissions. Biobutanol, an emerging biofuel with a higher energy content than ethanol, is seen as a promising alternative to petroleum-based f...

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·DateJul 21, 2011

Nanotechnology for water filter

Researchers at the University of Vienna have developed a method called "passive sampling" to measure the affinity of contaminants to carbon nanotubes. This method provides reliable results for realistic applications and can remove pollutants from contaminated water, making it a promising technology for water filtration.

SourceUniversity of Vienna·JournalEnvironmental Science & Technology·DateJul 21, 2011
Garmin GPSMAP 67i with inReach

Garmin GPSMAP 67i with inReach provides rugged GNSS navigation, satellite messaging, and SOS for backcountry geology and climate field teams.

Even privately insured have hard time getting psychiatric care in Massachusetts: Harvard study

A Harvard study reveals that access to outpatient psychiatric care in Massachusetts is severely limited, even for those with private insurance. The researchers found that only a small percentage of facilities listed by the largest insurer offered appointments within two weeks of a simulated patient's call.

SourcePhysicians for a National Health Program·JournalAnnals of Emergency Medicine·DateJul 21, 2011

Scavenger cells accomplices to viruses

Cell biologists from the University of Zurich have identified the infection mechanism for type-5 adenoviruses, revealing that viruses use scavenger cells to trigger an immune response and expose shielded receptors on lung epithelial cells. This discovery has implications for both gene therapy and cancer treatment.

SourceUniversity of Zurich·JournalNature Communications·DateJul 21, 2011

A hot species for cool structures

Scientists have determined the 3D structure of a key cellular component using a heat-loving fungus. By analyzing the genome and proteome of Chaetomium thermophilum, researchers were able to identify the proteins that make up the innermost ring of the nuclear pore, a channel that controls what enters and exits a cell's nucleus.

SourceEuropean Molecular Biology Laboratory·JournalCell·DateJul 21, 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.

MS research: Myelin influences how brain cells send signals

Researchers at Ohio State University have developed a cell-culture system that mimics the coating of nerve cells with protective myelin, opening up new possibilities for studying multiple sclerosis. The study found that myelin regulates key protein placement and activity in sending electrical signals along hippocampal axons.

SourceOhio State University·JournalJournal of Biological Chemistry·DateJul 21, 2011