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Science News for May 24, 2011


MIT research: What makes an image memorable?

A new study from MIT neuroscientists shows that the most memorable photos are those containing people, followed by static indoor scenes and human-scale objects. The researchers developed a computer algorithm to rank images based on memorability, which could be useful for graphic designers and photo editors.

SourceMassachusetts Institute of Technology·DateMay 24, 2011

Rethinking extinction risk?

A recent study by an international team of researchers found that the processes of extinction and speciation are linked in plants, with young species often appearing at high risk of extinction. This challenges the application of the same threat criteria across living organisms and regions.

SourcePLOS·JournalPLOS Biology·DateMay 24, 2011

Mathematically ranking ranking methods

The study compares three popular ranking methods, finding that the Colley and Massey methods are insensitive to small changes, while the Markov method is highly sensitive, leading to anomalies in rankings. The authors conclude that these methods can be effective for other applications, such as social networks.

SourceSociety for Industrial and Applied Mathematics·JournalSIAM Journal on Scientific Computing·DateMay 24, 2011

Population genetics reveals shared ancestries

A new study found that Southern European groups can attribute up to 3% of their genetic signature to African ancestry, with mixing dating back 1,600 years. Middle Eastern groups have inherited 4-15% African ancestry, and Jewish populations 3-5%.

SourceHarvard Medical School·JournalPLOS Genetics·DateMay 24, 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.

West coast radar network is world's largest

The West Coast high-frequency radar network, operated by Scripps Institution of Oceanography, provides kilometer-scale current observations out to 150 kilometers offshore and 2,500 kilometers of shoreline. This network allows for the determination of geographic differences in coastal surface circulation and characterization of phenomen...

SourceUniversity of California - San Diego·DateMay 24, 2011

FDA predictability a top concern for medtech firms; EU preferred for product approval

A survey by Northwestern University found that small companies report more challenges than large companies in the FDA's 510(k) review process. The predictability of regulatory requirements is a crucial factor in deciding whether to invest in developing new products, with only 8% of respondents believing the US system is predictable.

SourceInHealth: The Institute for Health Technology Studies·DateMay 24, 2011

How to learn a star's true age

Researchers have found a method to measure a star's true age using its spin. Astronomer Soren Meibom presented his findings in a press conference, nearly doubling the age covered by previous studies of younger clusters. The technique involves measuring stellar rotation rates for stars in clusters with known ages.

SourceCenter for Astrophysics | Harvard & Smithsonian·JournalThe Astrophysical Journal Letters·DateMay 24, 2011

Your culture may influence your perception of death

A recent study published in Psychological Science found that people from different cultures respond differently to thoughts of death. European-Americans tend to focus on protecting their sense of self, leading to harsher judgments towards those perceived as threats. In contrast, Asian-Americans are more likely to reach out to others an...

SourceAssociation for Psychological Science·JournalPsychological Science·DateMay 24, 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.

Medicare improved Canadian doctors' salaries: Queen's University study

A Queen's University study found that Canadian doctors enjoyed a windfall in earnings during the early years of Medicare and that the universal system continued to enhance physician income after adjustment. Despite lower fees for services, Canadian doctors remain the top-earning profession.

SourceQueen's University·JournalAmerican Journal of Public Health·DateMay 24, 2011

Why people with schizophrenia may have trouble reading social cues

Researchers at Vanderbilt University discovered that impairments in the posterior superior temporal sulcus (STS) brain area contribute to difficulties in reading social cues. This abnormal brain activation leads to misconstruing human actions and intentions in individuals with schizophrenia.

SourceVanderbilt University·JournalPLOS ONE·DateMay 24, 2011

Bacteria use caffeine as food source

A new bacterium, Pseudomonas putida CBB5, uses newly discovered digestive enzymes to break down caffeine into carbon dioxide and ammonia. The enzyme's ability to remove methyl groups could lead to easier pharmaceutical production, potentially lowering costs.

SourceAmerican Society for Microbiology·DateMay 24, 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.

Pandemic influenza H1N1 in Mexico

Researchers studied pandemic influenza H1N1 morbidity and mortality in 32 Mexican states, finding age distribution and risk of severe disease varied by age group. The study supports the effectiveness of early mitigation efforts like mandatory school closures.

SourcePLOS·JournalPLOS Medicine·DateMay 24, 2011

The role of bacteria in weather events

Researchers have discovered a high concentration of bacteria in the center of hailstones, indicating that airborne microorganisms may play a role in weather events. The study suggests that biological particles, such as bacteria, can act as ice nuclei, catalyzing ice formation at temperatures near -2 degrees Celsius.

SourceAmerican Society for Microbiology·DateMay 24, 2011
Apple iPhone 17 Pro

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

Unusual earthquake gave Japan tsunami extra punch, say Stanford scientists

Researchers discovered a unique sequence of geologic events that triggered Japan's devastating tsunami, including an unusual 'two-faced' rupture on the fault plane and extreme dynamic overshoot. This finding highlights the need to better understand similar earthquakes in other subduction zones around the world.

SourceStanford University·JournalScience·DateMay 24, 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.

Baylor study finds common fire retardant harmful to aquatic life

A Baylor University study reveals that polybrominated diphenyl ethers (PBDEs), a common fire retardant, can cause developmental malformations, changes in behavior, and death in zebra fish. The research found that lower brominated congeners were more toxic than higher ones.

SourceBaylor University·JournalEnvironmental Toxicology and Chemistry·DateMay 24, 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.

Sleep deprivation in doctors

A recent study indicates that prolonged sleep deprivation among doctors can result in higher rates of surgical complications. The authors suggest establishing minimum uninterrupted sleep hours as a best practice standard to ensure patient safety.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateMay 24, 2011

2 Greenland glaciers lose enough ice to fill Lake Erie

Two of Greenland's largest glaciers have lost sufficient ice to equal 300 gigatons in the last decade, equivalent to seven years of normal snow accumulation. Meanwhile, Helheim glacier gained a small amount of mass over the same period, providing a high-definition picture of climate-caused changes on the island.

SourceOhio State University·JournalGeophysical Research Letters·DateMay 24, 2011

MetLife Foundation's grant bolsters media coverage for aging issues

The MetLife Foundation has awarded a $100,000 grant to support a fellowship program that brings aging-focused reporters to the Gerontological Society of America's Annual Scientific Meeting. The program aims to increase media coverage on aging issues, which are expected to grow significantly in the next 40 years.

SourceThe Gerontological Society of America·DateMay 24, 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.

Sardines and horse mackerel identified using forensic techniques

Researchers developed a forensic mitochondrial DNA species identification technique to distinguish between sardines and horse mackerel. The method has been applied to over 20 sardine and 20 horse mackerel species, facilitating fisheries imports monitoring and tracking.

SourceSpanish Foundation for Science and Technology·JournalJournal of Agricultural and Food Chemistry·DateMay 24, 2011

Aboriginal children less likely to receive kidney transplants

A Canadian study found Aboriginal children with kidney failure were less likely to receive a kidney transplant compared to white children. The study revealed that Aboriginal children had more immune-mediated kidney diseases and shorter waiting times on dialysis before transplantation, leading to lower rates of successful transplants.

SourceCanadian Medical Association Journal·JournalCanadian Medical Association Journal·DateMay 24, 2011

NASA's NPP satellite successfully completes thermal vac testing

The NASA National Polar-orbiting Operational Environmental Satellite System (NPOESS) Preparatory Project (NPP) climate and weather satellite has completed all environmental testing, including thermal vacuum testing. The successful test paves the way for the satellite's planned launch on October 25.

SourceNASA/Goddard Space Flight Center·DateMay 24, 2011

Seeing an atomic thickness

Researchers from NPL and Linköping University have developed a method to identify graphene thickness using EFM, allowing for precise device applications. This technique is suitable for industrial environments and can be used to distinguish between one- and two-layer graphene.

SourceNational Physical Laboratory·JournalNano Letters·DateMay 24, 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.

Migration an overlooked health policy issue: New series

A new article in PLOS Medicine argues that current policies on migration and health have been conducted within sector silos, hindering coordinated efforts. A framework is proposed to describe migration as a multi-staged process with various intervention opportunities, highlighting points for international coordination.

SourcePLOS·JournalPLOS Medicine·DateMay 24, 2011

Brisk walking could improve prostate cancer outcomes

A recent study found that men who walk briskly after diagnosis have a 57% lower rate of progression of disease than those who walk at an easy pace. Brisk walking can delay or even prevent progression of prostate cancer.

SourceAmerican Association for Cancer Research·JournalCancer Research·DateMay 24, 2011

California's energy future: Aggressive efficiency and electrification needed to cut emissions

A joint report from Berkeley Lab suggests California can achieve 60% emissions reduction with current technology, while the remaining 20% will require advancements in technologies like artificial photosynthesis and fusion energy. The report recommends electrifying as much as possible, increasing efficiency measures, and changing human ...

SourceDOE/Lawrence Berkeley National Laboratory·DateMay 24, 2011
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.

Mexican flu pandemic study supports social distancing

A Mexican flu pandemic study found that school closures and other social distancing measures were associated with a significant reduction in influenza transmission rates, with up to 37% fewer cases reported. The study highlights the importance of these interventions in mitigating future pandemics.

SourceNIH/Fogarty International Center·JournalPLOS Medicine·DateMay 24, 2011

Beyond the barn: Keeping dairy cows outside is good for the outdoors

A study by the USDA found that keeping dairy cows outdoors year-round lowers ammonia emissions by 30% and greenhouse gas emissions by 8%. Well-managed outdoor dairy herds also sequester more carbon in fields converted to perennial grasslands.

SourceUnited States Department of Agriculture - Research, Education and Economics·JournalForage and Grazinglands·DateMay 24, 2011

UCSF studies examine antibiotic prescribing patterns for children

Two new studies by UCSF researchers found that nearly one in six visits to doctors' offices for asthma complaints resulted in antibiotic prescriptions. The findings highlight the need for pediatricians to prescribe antibiotics more judiciously to prevent drug resistance. Additionally, researchers are investigating whether targeted anti...

SourceUniversity of California - San Francisco·JournalPEDIATRICS·DateMay 24, 2011

Competing treatments comparable for sudden hearing loss

A new treatment for sudden hearing loss has been found comparable to oral steroids, providing patients with more treatment options. The study showed that both treatments led to similar hearing improvements, but patients with severe hearing loss benefited more from oral steroids.

SourceJohns Hopkins Medicine·JournalJAMA·DateMay 24, 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.

Dual parasitic infections deadly to marine mammals

A study of 161 marine mammal tissue samples reveals an association between severe illness and co-infection with two parasites, Sarcocystis neurona and Toxoplasma gondii. The infections caused more severe disease symptoms in animals infected with both parasites.

SourceNIH/National Institute of Allergy and Infectious Diseases·JournalPLOS Neglected Tropical Diseases·DateMay 24, 2011

PET scans predict effectiveness of treatment for multidrug-resistant tuberculosis in HIV patients

A recent study published in The Journal of Nuclear Medicine found that PET scans can help determine earlier if treatment for tuberculosis is working or if the disease is multidrug-resistant. This technology has the potential to become a valuable clinical adjunct to genotypic and phenotypic tests, improving patient outcomes.

SourceSociety of Nuclear Medicine and Molecular Imaging·JournalJournal of Nuclear Medicine·DateMay 24, 2011

Brisk walking may help men with prostate cancer, UCSF study finds

A study of 1,455 U.S. men with early-stage prostate cancer found that brisk walking lowers the risk of prostate cancer progression by nearly 60%. Regular physical activity can improve prognosis, and walking must be brisk for benefits to occur.

SourceUniversity of California - San Francisco·JournalCancer Research·DateMay 24, 2011

Expanded VLA flexing new scientific muscle

The Expanded VLA is providing new insights into the formation of sun-like stars, with observations revealing previously unseen detail of molecular gas near a very young star. The telescope's improved quality is also helping researchers study large ejections of matter from massive young stars and their role in galaxy evolution.

SourceNational Radio Astronomy Observatory·JournalThe Astrophysical Journal Letters·DateMay 24, 2011
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.

The healing power of hydrogen peroxide

Researchers found that hydrogen peroxide released by damaged skin cells coordinates regeneration of sensory fibers, promoting wound healing and restoring touch sensation. The study demonstrates the healing power of hydrogen peroxide in zebrafish larvae.

SourcePLOS·JournalPLOS Biology·DateMay 24, 2011

Comparable effectiveness shown for 2 common sudden deafness treatments

A large clinical trial has shown that direct injection of steroids into the middle ear is equally effective as oral steroids in restoring hearing levels in patients with sudden deafness. The study results, published in the Journal of the American Medical Association, have implications for treatment options and cost-effectiveness.

SourceNIH/National Institute on Deafness and Other Communication Disorders·JournalJAMA·DateMay 24, 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.

Crime Victims' Institute studies adolescent sex and laws

A recent study by the Crime Victims' Institute examines state laws addressing adolescent sexual activity and suggests decriminalizing consensual relationships between close-in-age teens. The report also proposes using education classes instead of punishment, with options for parents to control their child's behavior through restraining...

SourceSam Houston State University·DateMay 24, 2011

MIT: Teaching algae to make fuel

Researchers have developed a method to boost algal hydrogen production by 400% using bioengineered proteins, demonstrating the competition between sugar and hydrogen production in algae. This discovery paves the way for large-scale hydrogen fuel manufacturing using water and sunlight.

SourceMassachusetts Institute of Technology·JournalProceedings of the National Academy of Sciences·DateMay 24, 2011

Weill Cornell drug stops aggressive form of childhood leukemia

A study published in Nature shows that a combination therapy of RI-BPI and Gleevec eradicates cancer in cell and animal studies, targeting the Philadelphia chromosome-positive (Ph+) form of acute lymphoblastic leukemia (ALL). This breakthrough offers new hope for improved survival rates for children with this aggressive cancer.

SourceNewYork-Presbyterian·JournalNature·DateMay 24, 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.

Expert discovers simple method of dealing with harmful radioactive iodine

A novel way to immobilise radioactive forms of iodine using a microwave has been discovered by Professor Neil Hyatt at the University of Sheffield. The method uses Pb5(VO4)3I, a solid material that can safely contain radionuclides like iodine-129, reducing long-term health risks from environmental release.

SourceUniversity of Sheffield·JournalJournal of Nuclear Materials·DateMay 24, 2011

Lifestyle counseling and glycemic control in patients with diabetes: True to form?

A study by Brigham and Women's Hospital researchers found that copied lifestyle counseling documentation in EMRs is not associated with improved glucose control, similar to having received no counseling. The team suggests educating healthcare providers about the issue and exploring alternative solutions.

SourceBrigham and Women's Hospital·JournalArchives of Internal Medicine·DateMay 24, 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.

H1N1 study shows closing schools, other measures effective

A study published in PLOS Medicine found that closing schools and implementing social distancing measures significantly reduced H1N1 flu transmission rates in Mexico by 29-37%. The study analyzed data from the Mexican Institute for Social Security and showed a decline in hospitalization rates from 70% to 10% during this period.

SourceArizona State University·JournalPLOS Medicine·DateMay 24, 2011

Nearby supernova factory ramps up

Astronomers have discovered a local supernova factory in the Carina Nebula, which may help understand how young stars release newly-forged elements into their surroundings. The Chandra X-ray Observatory detected over 14,000 stars, six possible neutron stars, and a new population of young massive stars.

SourceChandra X-ray Center·JournalThe Astrophysical Journal Supplement Series·DateMay 24, 2011

No health card means no family doctor for many homeless people

A new report by St. Michael's Hospital and Street Health reveals that homeless people are more likely to have a family doctor if they possess a health card or have chronic medical conditions. The report highlights the need for programs to secure and maintain health cards and increase access to primary care in this population.

SourceSt. Michael's Hospital·JournalOpen Medicine·DateMay 24, 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.

Happy guys finish last, says new study on sexual attractiveness

A new University of British Columbia study found that women are least attracted to smiling, happy men, while men are most attracted to happy women. The study explored first impressions of sexual attraction and discovered dramatic gender differences in how emotions, including happiness, pride, and shame, are perceived.

SourceUniversity of British Columbia·JournalEmotion·DateMay 24, 2011

WSU physicists devise new way to analyze a bloody crime scene

Researchers at Washington State University have devised a new way to analyze blood spatters at crime scenes, allowing investigators to determine the exact height of a source. The system uses known equations of projectile motion and data points form a neat line on a graph when plotted correctly.

SourceWashington State University·JournalAmerican Journal of Physics·DateMay 24, 2011

Kepler's astounding haul of multiple-planet systems

Kepler's first four months of data reveal evidence for over 1,200 planetary candidates, with 408 residing in systems containing two or more planets. These multi-planet systems are characterized by flat orbits, tilted less than 1 degree, and lack Jupiter-sized gas giants.

SourceCenter for Astrophysics | Harvard & Smithsonian·DateMay 24, 2011

Medical students have substantial exposure to pharmaceutical industry marketing

A study found that medical students in the US have substantial exposure to pharmaceutical industry marketing, even in preclinical years. The extent of their contact is associated with positive attitudes towards marketing and skepticism of negative implications. The authors recommend better education for medical students on the subject ...

SourcePLOS·JournalPLOS Medicine·DateMay 24, 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.

Springer launches new open access journal with Korean research society

The new journal will be fully sponsored by the Korea-based Future Technology Research Association International (FTRA) and cover multifaceted aspects of human-centric computing technology and information sciences. All research results will be freely available online under the Creative Commons Attribution license.

SourceSpringer·JournalHuman-centric Computing and Information Sciences·DateMay 24, 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.