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Science News for March 18, 2010


Pesticide chlorpyrifos is linked to childhood developmental delays

Exposure to chlorpyrifos is associated with early childhood developmental delays, including mental and physical impairments. High levels of chlorpyrifos exposure were linked to decreased Psychomotor Development Index scores and Mental Development Index scores in 3-year-olds.

SourceColumbia University's Mailman School of Public Health·JournalAmerican Journal of Public Health·DateMar 18, 2010

Tryptophan-enriched diet reduces pig aggression

A study by US Department of Agriculture researchers found that a tryptophan-enriched diet reduces aggression in young female pigs, making them calmer and easier to manage. The supplement raised blood concentrations of serotonin, a calming neurotransmitter, leading to reduced behavioral activity and aggression.

SourceUnited States Department of Agriculture - Research, Education and Economics·JournalApplied Animal Behaviour Science·DateMar 18, 2010

Extreme obesity affecting more children at younger ages

A Kaiser Permanente study found that 7.3% of boys and 5.5% of girls were extremely obese, with the heaviest children being black teenage girls and Hispanic boys. The percentage of extreme obesity peaked at 10 years in boys and 12 years in girls.

SourceKaiser Permanente·JournalThe Journal of Pediatrics·DateMar 18, 2010
Apple iPhone 17 Pro

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

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.

A bleak outlook for social science?

Experts warn of a bleak outlook for social science due to funding cuts and an 'anti-research' mood in government. However, they also highlight the importance of social sciences in tackling complex challenges and propose solutions to strengthen their involvement in policymaking.

SourceSAGE Publications UK·DateMar 18, 2010
Celestron NexStar 8SE Computerized Telescope

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

Even oysters pay taxes

A new study proposes that slow-growing animals waste energy in two ways, making too much protein and then discarding excess. Fast-growing oysters, on the other hand, are more efficient at protein production, according to USC marine biologists.

SourceUniversity of Southern California·JournalJournal of Experimental Biology·DateMar 18, 2010

Giant sequoias yield longest fire history from tree rings

Scientists reconstructed a 3,000-year fire history in the Giant Forest of Sequoia National Park using giant sequoia tree rings. The research found that the years from 800 to 1300 had the most frequent fires during this period, and that climate change may subject the trees to similar conditions again.

SourceUniversity of Arizona·JournalFire Ecology·DateMar 18, 2010
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.

Cat-calls are detrimental to everyone

Women who witness sexism may experience negative emotions and feel motivated to take action against men in general. Research by Chaudoir and Quinn found that catcalls can shape women's feelings and attitudes towards men, with bystander sexism impacting how female observers view all men more negatively.

SourceSpringer·JournalSex Roles·DateMar 18, 2010

Manufacturing antibodies

The RECAN project developed novel fluorochrome dyes bound to monoclonal antibodies, enabling improved diagnosis of leukaemia and rheumatic diseases. The project also produced recombinant proteins for immunisation and created a range of specific monoclonal and polyclonal antibodies with great commercial potential.

SourceEUREKA·DateMar 18, 2010

New technique reduces tobacco smoke damage to lungs in mice

A new technique has been developed to reduce tobacco smoke damage to lungs in mice by blocking the GM-CSF protein. This research holds promise for identifying more effective therapies for cigarette smoke-induced lung damage.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateMar 18, 2010
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.

Bacteria divide like clockwork

Researchers have discovered how cyanobacteria's rate of cell division is regulated by the same circadian clocks that control human sleep patterns. The study found that cells divide once per day at specific points in the 24-hour cycle, with implications for understanding cellular renewal and cancer.

SourceMassachusetts Institute of Technology·JournalScience·DateMar 18, 2010

Cassini shows Saturnian roller derby

The Cassini spacecraft has provided stunning insights into Saturn's ring system, showing routine collisions and debris trails. The rings are composed mostly of water ice, with a mysterious reddish contaminant that could be rust or small organic molecules.

SourceQueen Mary University of London·JournalScience·DateMar 18, 2010

Feedback loop explains inflammatory effect on intestinal lining

A study published in Immunity reveals that immune cells' signals can interfere with the ability of intestinal cells to regenerate, leading to hyper-activation of growth and increasing the risk of colon cancer. Interfering with a protein called dickkopf 1 may aid in controlling inflammatory bowel diseases.

SourceEmory Health Sciences·JournalImmunity·DateMar 18, 2010

What makes us unique? Not only our genes

Researchers at EMBL and Yale found that up to a quarter of human genes are regulated differently in people, with variations in non-coding regions and protein interactions contributing to these differences. This new understanding may lead to novel approaches for studying diseases and personalizing treatments.

SourceEuropean Molecular Biology Laboratory·JournalScience·DateMar 18, 2010
Rigol DP832 Triple-Output Bench Power Supply

Rigol DP832 Triple-Output Bench Power Supply powers sensors, microcontrollers, and test circuits with programmable rails and stable outputs.

Cancer-themed issue of JAMA features UAB researchers on reducing disparities

UAB researchers emphasize the need for community-driven approaches to reduce cancer disparities, citing limited access to care and differences in healthy behaviors as contributing factors. They highlight successful programs that have eliminated disparities in screenings for certain cancers and advocate for engaging diverse populations ...

SourceUniversity of Alabama at Birmingham·JournalJAMA·DateMar 18, 2010

Research reveals frequency and cost of copying college homework

A study published in Physical Review Special Topics: Physics Education Research found that college students copy homework frequently, with those who procrastinate and start late more likely to repeat offenders. The researchers also discovered that changes to course formats can reduce copying by fourfold.

SourceUniversity of Kansas·DateMar 18, 2010
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 probes evolution of fairness and punishment

A new study suggests that cooperation in large societies is partly dependent on historical forces like religious beliefs and market transactions. The extent of punishment used to enforce norms increases and decreases with the number of people in the society.

SourceUniversity of California - Davis·JournalScience·DateMar 18, 2010

Broad application of bipolar diagnosis in children may do more harm than good

Troubled children diagnosed with bipolar disorder may benefit from alternative diagnoses like Severe Mood Dysregulation or Temper Dysregulation Disorder. The Hastings Center researchers recommend reframing the diagnosis and treatment approach to address family and social contexts.

SourceThe Hastings Center·JournalChild and Adolescent Psychiatry and Mental Health·DateMar 18, 2010
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.

Engineers: Weak laser can ignite nanoparticles, with exciting possibilities

Researchers at the University of Florida have successfully ignited nanoparticles using a weak laser, with potential applications in cancer treatment, explosives, and precise lithography. The discovery could lead to more efficient and environmentally friendly technologies in various industries.

SourceUniversity of Florida·JournalNature Nanotechnology·DateMar 18, 2010

Cultural divide in ability to recognize sensual sounds

A British study found that Westerners reliably recognized six basic human emotions through non-verbal vocalizations, but culturally isolated Himba people only recognized a subset of these emotions. The study highlights the importance of considering positive emotions in cross-cultural research.

SourceFaculty of 1000·JournalProceedings of the National Academy of Sciences·DateMar 18, 2010

A report card on DFID: The Lancet calls for a post-election independent review to protect its successes and fix its problems

The Lancet Editorial praises DFID's global health successes, including education and undernutrition strategies, but criticizes intragovernmental tensions and fragmentation of responsibilities. The publication calls for a post-election independent review to address these issues and ensure the department's continued success.

SourceThe Lancet_DELETED·JournalThe Lancet·DateMar 18, 2010

Stem cells used to model infant birth defect

Researchers have discovered that infantile hemangiomas originate from stem cells. Steroids target these stem cells specifically, inhibiting their ability to stimulate blood vessel growth. This finding opens the way for more specific and safer therapies for hemangioma.

SourceBoston Children's Hospital·JournalNew England Journal of Medicine·DateMar 18, 2010
Meta Quest 3 512GB

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

Patient referrals cause differences in hospital infection rates

A study published in PLOS Computational Biology found that patient referrals between hospitals influence the rates of hospital-acquired infections, with University Medical Centers showing higher rates. The authors suggest focusing interventions on central hospitals in the network of patient referrals.

SourcePLOS·JournalPLOS Computational Biology·DateMar 18, 2010

Nano-based RFID tags could replace bar codes

Rice researchers have developed an inexpensive, printable transmitter for RFID tags that can be invisibly embedded in packaging. This technology has the potential to revolutionize checkout processes by allowing customers to walk through a scanner with their groceries without stopping at each item.

SourceRice University·JournalIEEE Transactions on Electron Devices·DateMar 18, 2010
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.

Women do make men throw caution to the wind, research confirms

A study in Social Psychological and Personality Science found that young men took greater physical risks and had higher testosterone levels when attempting tricks in front of an attractive female. This suggests that the presence of a beautiful woman can lead to increased risk-taking behavior and elevated testosterone levels in men.

SourceSAGE·JournalSocial Psychological and Personality Science·DateMar 18, 2010

Songbirds provide insight into speech production

Researchers are using songbirds to understand how the human brain produces complex vocal behaviors, including speech. By studying the neural mechanisms that govern birdsong, they hope to develop a better understanding of speech disorders and language processing.

SourcePenn State·DateMar 18, 2010

Stress during pregnancy may increase offspring's risk of asthma

Research found that high stress levels in mothers are associated with differences in immune function markers in cord blood, which may increase the risk of asthma and allergy in offspring. The study suggests a link between prenatal stress and the development of asthma later in life.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateMar 18, 2010

Newly discovered planet could hold water

Corot-9b, a gas giant planet, has an interior similar to that of Jupiter and Saturn, allowing it to maintain liquid water. The planet's distance from its star and lack of tidal forces make this possibility plausible.

SourceEuropean Space Agency·JournalNature·DateMar 18, 2010
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.

HSBC Climate Partnership yields initial research findings

The HSBC Climate Partnership has made significant progress in understanding the effects of climate change on forest ecosystems and carbon storage. Researchers have found rapid increases in tree growth, proposed a novel biodiversity theory, and examined the impact of changing climate on white-tailed deer and mosquitoes.

SourceSmithsonian Tropical Research Institute·DateMar 18, 2010

Studies examine Third Eye Retroscope during colonoscopy

Two studies found that using the Third Eye Retroscope (TER) during colonoscopy detected 13.2% more polyps than standard colonoscopy alone, including 11% additional adenomas. The TER improved polyp detection rates significantly with experienced endoscopists.

SourceAmerican Society for Gastrointestinal Endoscopy·JournalGastrointestinal Endoscopy·DateMar 18, 2010
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.

Medicare patients 5.5 times more likely to get cataract surgery than VA patients, study finds

A large eight-year study found that Medicare patients are 5.5 times more likely to undergo routine cataract surgery than those receiving care from the Department of Veterans Affairs. The disparity may be attributed to financial incentives, physician-driven decisions, or a lack of ophthalmologists within the VA system.

SourceIndiana University School of Medicine·JournalAmerican Journal of Medical Quality·DateMar 18, 2010

France's national program to reduce HAIs reports important successes; uses mandatory reporting

A French national program to reduce healthcare-associated infections (HAIs) reported important successes with mandatory public reporting. The program led to a drop of 40% in MRSA cases and improved infection control measures across the country. Key initiatives included advancing research, improving communication with patients, and stan...

SourceSociety for Healthcare Epidemiology of America·DateMar 18, 2010