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Science News for March 28, 2013


Gene discovery may yield lettuce that will sprout in hot weather

A team of researchers identified a lettuce gene and related enzyme that inhibits germination during hot weather, enabling seeds to germinate in warm temperatures. The discovery could lead to lettuces that can grow in high temperatures, improving crop yields.

SourceUniversity of California - Davis·JournalThe Plant Cell·DateMar 28, 2013
Apple iPhone 17 Pro

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

New research on the effects of traumatic brain injury

Studies found that individuals with dementia and TBI may have distinct clinical characteristics, such as higher fluency and verbal memory scores. Additionally, elderly patients with TBI are at higher risk of premature death due to underlying health conditions or complications after injury.

SourceThe Mount Sinai Hospital / Mount Sinai School of Medicine·JournalNeuroRehabilitation An International Interdisciplinary Journal·DateMar 28, 2013

Low vitamin D linked with lower kidney function after transplantation

A study found that low vitamin D levels at three months post-transplantation were associated with lower kidney function and increased scarring at one year. Vitamin D deficiency is common in patients with kidney failure. Maintaining normal vitamin D levels may prevent renal function deterioration after transplantation.

SourceAmerican Society of Nephrology·JournalJournal of the American Society of Nephrology·DateMar 28, 2013

A social network for young Londoners on the buses

A recent study by the London School of Hygiene & Tropical Medicine found that free bus travel has improved the independent mobility and social lives of young Londoners. The research discovered a 'code of honour' among young people, where traveling together is seen as a sign of loyalty, and traveling alone is perceived as a betrayal.

SourceLondon School of Hygiene & Tropical Medicine·JournalMobilities·DateMar 28, 2013

UCLA study finds heart failure medications highly cost-effective

A UCLA study found that heart failure medications recommended by national guidelines are highly cost-effective in saving lives and may also provide savings to the healthcare system. The combination of these medical therapies demonstrated the greatest gains in quality-adjusted life years for heart failure patients.

SourceUniversity of California - Los Angeles Health Sciences·JournalJournal of the American College of Cardiology·DateMar 28, 2013

Should I trust my intuition?

A study published in Neuron found that rats achieved optimal performance in less than 300 milliseconds, indicating that taking more time doesn't necessarily lead to better decisions. The researchers suggest that, for certain types of decisions, relying on intuition may be the most effective approach.

SourceJLM&A, SA·JournalNeuron·DateMar 28, 2013
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.

Hispanics live longest, whites shortest among dialysis patients

A study of 1.2 million dialysis patients found Hispanics lived the longest, followed by Blacks, with Whites having the shortest survival time. The disparity may be due to differences in health status before kidney failure.

SourceAmerican Society of Nephrology·JournalClinical Journal of the American Society of Nephrology·DateMar 28, 2013

New study aims to prevent sports-related brain injury in youngsters

A new study out of St. Michael's Hospital found that nearly half of all traumatic brain injuries among Canadian children and youth participating in organized sports occurred in ice hockey, with most caused by body contact or being hit into the boards. The researchers also identified specific prevention tactics for various sports, inclu...

SourceSt. Michael's Hospital·JournalPLOS ONE·DateMar 28, 2013

Picking apart photosynthesis

Caltech chemists have explained one of the remaining mysteries of photosynthesis, the chemical process by which plants convert sunlight into usable energy and generate oxygen. The discovery provides a new way of approaching the design of catalysts that drive water-splitting reactions in artificial photosynthesis.

SourceCalifornia Institute of Technology·JournalNature Chemistry·DateMar 28, 2013

Innate immune system can kill HIV when a viral gene is deactivated

A study published in PLoS Pathogens suggests that removing the viral infectivity factor gene from HIV allows the innate human immune system to destroy the virus. The researchers used a humanized mouse model and found that APOBEC3 proteins effectively restrict HIV growth when vif is removed.

SourceUniversity of North Carolina Health Care·JournalPLOS Pathogens·DateMar 28, 2013
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.

NOvA neutrino detector records first 3-D particle tracks

The NOvA neutrino detector has recorded its first three-dimensional images of particles from cosmic rays, a crucial step towards discovering properties of mysterious fundamental particles called neutrinos. The detector will use this data to identify and measure the energy of neutrinos.

SourceDOE/Fermi National Accelerator Laboratory·DateMar 28, 2013

Look out squirrels: Leopards are new backyard wildlife

A new study by WCS-India reveals leopards inhabit landscapes with high human populations and no wilderness, defying conventional conservation strategies. Camera traps captured five adult large carnivores per 100 square kilometers, showcasing adaptability of humans and wildlife to each other's presence.

SourceWildlife Conservation Society·JournalPLOS ONE·DateMar 28, 2013

Parkinson's disease protein gums up garbage disposal system in cells

Researchers have discovered that Parkinson's disease protein, α-synuclein, forms insoluble aggregates that resist degradation in cells. The accumulation of these clumps impairs the macroautophagy system, a major garbage disposal system within the cell.

SourceUniversity of Pennsylvania School of Medicine·JournalJournal of Biological Chemistry·DateMar 28, 2013

Sustainable fishing practices produce local rewards

Research in Papua New Guinea reveals that local community-led efforts to regulate fish catches benefit both the fishermen and their neighbors. The study found that many larvae produced by managed adults return to the same fish population, highlighting the effectiveness of cooperative management.

SourceCell Press·JournalCurrent Biology·DateMar 28, 2013
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.

Brain scans might predict future criminal behavior

A new study found that neuroimaging data can predict the likelihood of reoffending following prison release. Inmates with lower anterior cingulate cortex activity were twice as likely to reoffend compared to those with higher activity.

SourceDuke University·JournalProceedings of the National Academy of Sciences·DateMar 28, 2013

Teens' struggles with peers forecast long-term adult problems

A new longitudinal study found that teens who struggled to connect with their peers in early adolescence were more likely to have difficulty establishing close friendships in young adulthood. Conversely, those who established autonomy and independence from peer influences had lower risks of problems with alcohol and substance use.

SourceSociety for Research in Child Development·JournalChild Development·DateMar 28, 2013

Language used in immigration debates may be as important as the policies

A new study by Hana E. Brown finds that the language used in immigration debates can have long-term effects on policy outcomes, including welfare reform battles. The study shows how different linguistic approaches can create coalitions and shape policy decisions.

SourceAmerican Sociological Association·JournalAmerican Sociological Review·DateMar 28, 2013
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.

Scientists identify brain's 'molecular memory switch'

Researchers have identified a key molecule responsible for triggering chemical processes in the brain linked to memory formation. The study found that the gene CASK regulates the 'molecular memory switch', enabling it to remain active even after calcium has gone, paving the way for new therapies to reverse memory loss.

SourceUniversity of Bristol·JournalFrontiers in Neural Circuits·DateMar 28, 2013

Creating inclusive child-care spaces

A new study found that 91% of Alberta child-care centres have provided inclusive care in the previous two years. However, many still face challenges, with 36% turning away children with special needs due to capacity issues or inadequate staff training.

SourceUniversity of Alberta·JournalInternational Journal of Inclusive Education·DateMar 28, 2013

15 minutes of fame? Study finds true fame isn't fleeting

A new study by McGill University and Stony Brook University researchers found that true fame is not fleeting. The study analyzed names mentioned in English-language newspapers over several decades and found that most famous individuals remain celebrated for decades, regardless of their field.

SourceAmerican Sociological Association·JournalAmerican Sociological Review·DateMar 28, 2013

Notre Dame researchers are using new technologies to combat invasive species

Researchers from the University of Notre Dame have created a method using environmental DNA (eDNA) and Light Transmission Spectroscopy (LTS) to detect invasive aquatic species in real-time. This innovative approach enables rapid identification of high-risk species before they cause significant damage.

SourceUniversity of Notre Dame·JournalConservation Letters·DateMar 28, 2013
Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C)

Anker Laptop Power Bank 25,000mAh (Triple 100W USB-C) keeps Macs, tablets, and meters powered during extended observing runs and remote surveys.

Even graphene has weak spots

Researchers found that the seven-atom ring defects at junctions in polycrystalline graphene result in reduced strength due to amplification of tension. This finding is significant for materials scientists using graphene, particularly in composite materials and stretchable electronics.

SourceRice University·JournalNano Letters·DateMar 28, 2013

Combinations of estrogen-mimicking chemicals found to strongly distort hormone action

A study by University of Texas Medical Branch at Galveston researchers found that combining low doses of multiple xenoestrogens can have a dramatically greater effect on hormone signaling than any one compound alone. The combination of bisphenol A, bisphenol S and nonylphenol was found to gang up on estradiol and thwart its response.

SourceUniversity of Texas Medical Branch at Galveston·JournalEnvironmental Health·DateMar 28, 2013

Cell reprogramming during liver regeneration

Scientists have found that hepatocytes can transform into biliary cells in response to injury, a process dependent on the activation of endogenous Notch signaling. This discovery provides direct evidence for cellular reprogramming in mammals and may lead to new treatments for diseases involving bile duct deficiency.

SourceUniversity of Pennsylvania School of Medicine·JournalGenes & Development·DateMar 28, 2013
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.

What attracts people to violent movies?

Researchers found that audiences are drawn to violent content due to a desire to confront and understand real-life problems, rather than solely for entertainment. The study used a large binational sample to examine the motivations behind exposure to violent portrayals, suggesting a more complex and nuanced understanding of human behavior.

SourceInternational Communication Association·DateMar 28, 2013

HIV antibodies that are worth the wait

Researchers have discovered that broadly neutralizing antibodies (bNAbs) can handle HIV's high mutation rate, offering a promising strategy for vaccine development. The study found that mutations in framework regions strengthened the antibodies' antiviral activity while conserving key structural features.

SourceCell Press·JournalCell·DateMar 28, 2013

Black bears: Here, gone, and back again

A new study reveals that Nevada's black bear population is increasing and expanding its former range due to conservation efforts. The study analyzed historic records and found that the bears were once widespread but vanished by 1931, only to rebound in recent years.

SourceWildlife Conservation Society·JournalJournal of Wildlife Management·DateMar 28, 2013
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.

Mayo Clinic study: Physician spouses very satisfied in relationships

A Mayo Clinic survey found that 85% of physician spouses/partners are satisfied in their relationships, similar to married adults overall. Most work outside the home, with nearly 40% working full-time or more, despite their partners' high non-sleeping time spent at work.

SourceMayo Clinic·JournalMayo Clinic Proceedings·DateMar 28, 2013
Celestron NexStar 8SE Computerized Telescope

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

Boston Public Schools' prekindergarten program boosts children's skills

The Boston Public Schools' prekindergarten program has significantly improved children's language, literacy, math, executive function, and emotional development skills. The study found that the program, which uses research-based curricula and coaching of teachers, was particularly beneficial for Latino children.

SourceSociety for Research in Child Development·JournalChild Development·DateMar 28, 2013

Common gene variants explain 42 percent of antidepressant response

A new study published in Biological Psychiatry found that common genetic variants explain 42% of individual differences in antidepressant response, providing a significant step towards personalized treatment for depression. The research identified multiple genetic markers involved in predicting response to antidepressants.

SourceElsevier·JournalBiological Psychiatry·DateMar 28, 2013

Multiple moves found harmful to poor young children

A study by Cornell University and National Employment Law Project found that poor children who move three or more times before age 5 experience more attention problems, anxiousness, depression, aggressiveness, or hyperactivity.

SourceSociety for Research in Child Development·JournalChild Development·DateMar 28, 2013
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.

Eating more fiber may lower risk of first-time stroke

A study found that each seven-gram increase in total daily fiber intake was associated with a 7 percent decrease in first-time stroke risk. Increasing fiber intake can help reduce risk factors for stroke, including high blood pressure and high LDL cholesterol levels.

SourceAmerican Heart Association·DateMar 28, 2013

Declaring a truce with our microbiological frienemies

Researchers suggest a more flexible understanding of the immune system's interaction with microbes, considering both pathogens and beneficial bacteria. The human body hosts ten times more bacterial cells than human cells, which play crucial roles in improving body functions.

SourcePenn State·JournalmBio·DateMar 28, 2013

Home hot water temperatures remain a burn hazard for young and elderly

Researchers found that despite voluntary temperature setting standards, hot water temperatures remained dangerously high in 41% of homes, posing a scald hazard to young children and the elderly. The study suggests equipping faucets with anti-scald devices as a potential solution.

SourceJohns Hopkins Bloomberg School of Public Health·JournalJournal of Burn Care & Research·DateMar 28, 2013

HPV improves survival for African-Americans with throat cancer

African Americans with HPV-positive throat cancer have better outcomes than those without HPV. The study found that HPV has a substantial impact on overall survival in this population. African Americans who are HPV-negative face poorer survival rates compared to Caucasians with or without HPV.

SourceHenry Ford Health·JournalClinical Cancer Research·DateMar 28, 2013
Fluke 87V Industrial Digital Multimeter

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

Study reveals how diabetes drug delays ageing in worms

A study published using worms found that metformin, a widely prescribed diabetes drug, delays ageing by altering metabolism in gut bacteria. The drug was shown to extend worm lifespan by mimicking the effects of calorie restriction.

SourceWellcome Trust·JournalCell·DateMar 28, 2013

Swarming robots could be the servants of the future

Researchers at the University of Sheffield have developed a swarm of 40 robots that can carry out simple fetching and carrying tasks, and even organize themselves by order of priority. This technology could play a significant role in future medical applications, military operations, and industrial processes.

SourceUniversity of Sheffield·DateMar 28, 2013

Wilderness therapy programs less risky than daily life, UNH research finds

A new study by University of New Hampshire researchers finds that wilderness and adventure therapy programs significantly reduce the risk of injury compared to everyday activities. The programs boast lower injury rates than sports like football, snowboarding, and downhill skiing.

SourceUniversity of New Hampshire·JournalJournal of Therapeutic Schools and Programs·DateMar 28, 2013

Mindfulness from meditation associated with lower stress hormone

Research from the Shamatha Project at UC Davis suggests that mindfulness training can lower cortisol levels, a hormone associated with physical and emotional stress. The study found a correlation between high scores in mindfulness and low cortisol levels before and after an intensive meditation retreat.

SourceUniversity of California - Davis·JournalHealth Psychology·DateMar 28, 2013

Rice's Laura Segatori wins NSF CAREER Award

Laura Segatori, a Rice University engineer, has received a NSF CAREER Award to develop a toolkit for probing the workings of cellular processes that lead to diseases like Parkinson's. Her goal is to identify key proteins and learn how to regulate them using nanoparticles.

SourceRice University·DateMar 28, 2013
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.

Mate choice in mice is heavily influenced by paternal cues

Researchers found that hybrid offspring of different house mouse populations prefer mating with individuals from their father's original population, indicating a strong paternal imprinting effect. This preference accelerates the divergence of two house mouse populations and promotes speciation.

SourceMax-Planck-Gesellschaft·JournalMolecular Biology·DateMar 28, 2013

Penn researchers show stem cell fate depends on 'grip'

Researchers at the University of Pennsylvania have found that a stem cell's environment influences its differentiation into various cell types, with 'grip' playing a crucial role. The study suggests that three-dimensional matrices impact mechanotransduction, guiding stem cell fate and differentiation.

SourceUniversity of Pennsylvania·JournalNature Materials·DateMar 28, 2013

Biological transistor enables computing within living cells, Stanford study says

A team of Stanford University bioengineers has created a biological transistor made from genetic material that can compute inside living cells, recording exposure to external stimuli or environmental factors. The transcriptor enables amplifying genetic logic, allowing engineers to monitor environments and improve cellular therapeutics.

SourceStanford Medicine·JournalScience·DateMar 28, 2013

Obesity leads to decreased physical activity over time

Researchers confirm that obesity leads to a decrease in physical activity over time, with obese participants showing an 8% drop in moderate to vigorous activity. The study uses objective measurement methods and large sample size to provide insight into the relationship between inactivity and weight gain.

SourceBrigham Young University·JournalObesity·DateMar 28, 2013
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.

Robot ants successfully mimic real colony behavior

A team of researchers successfully replicated the behavior of a moving ant colony using miniature robots, called Alices. The robots navigated mazes by following chemical pheromone trails and directional random walks, demonstrating that efficient navigation can be achieved with minimal cognitive abilities.

SourcePLOS·JournalPLOS Computational Biology·DateMar 28, 2013
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.

Common -- but without a name

The newly described species, Pyropia plicata, has a distinctive growth form with pleated blades and beautiful coloration. It is highly prized by Maori in New Zealand as karengo and is also eaten worldwide for its high protein content.

SourcePensoft Publishers·JournalPhytoKeys·DateMar 28, 2013

Children of deployed parents at higher risk for alcohol, drug use

A new University of Iowa study suggests that deployment of a parent puts children at an increased risk for drinking alcohol and using drugs. The study found a three-to-four-fold increase in binge drinking among children of deployed or recently returned military parents compared to non-military families.

SourceUniversity of Iowa Health Care·JournalAddiction·DateMar 28, 2013
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.

Surgical menopause may prime brain for stroke, Alzheimer's

Women who undergo surgical menopause experience a two-fold increase in cognitive decline and dementia due to premature estrogen loss. Research suggests that this leads to increased sensitivity to stressors and abnormal protein production, which can contribute to Alzheimer's disease. Follow-up studies are needed to confirm the findings.

SourceMedical College of Georgia at Augusta University·JournalBrain·DateMar 28, 2013

Protective prion keeps yeast cells from going it alone

A team of scientists has identified a prion that triggers epigenetic changes in yeast, leading to the adoption of a multicellular structure for improved survival. This finding suggests that prions may play a role in beneficial traits and could have implications for understanding human diseases such as cancer.

SourceWhitehead Institute for Biomedical Research·JournalCell·DateMar 28, 2013

Rise in CF patient infections explained

A recent study published in The Lancet reveals evidence for transmission of Mycobacterium abscessus between Cystic Fibrosis patients through DNA sequencing, highlighting the global spread of antibiotic-resistant bacterial species. The research team developed new measures to protect Cystic Fibrosis patients from this emerging threat.

SourceWellcome Trust Sanger Institute·JournalThe Lancet·DateMar 28, 2013

New vaccine-design approach targets HIV and other fast-mutating viruses

A team of scientists developed a new technique for designing vaccine immunogens that can stimulate the immune system to produce antibodies effective against multiple strains of HIV. The approach, using artificial proteins engineered to bind germline B cells, offers hope for better protection against fast-mutating viruses.

SourceScripps Research Institute·DateMar 28, 2013
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: 'Waste heat' may economize CO2 capture

A Rice University team has found that using waste heat can remove more CO2 from coal-fired power plant emissions economically. The researchers hope to reduce the costs of CO2 capture by creating an integrated reaction column that uses waste heat, engineered materials and optimized components.

SourceRice University·JournalInternational Journal of Greenhouse Gas Control·DateMar 28, 2013

Light may recast copper as chemical industry 'holy grail'

Researchers at the University of Michigan have discovered a way to reverse copper nanoparticle oxidation using light, potentially leading to an eco-friendly production process for propylene oxide. The discovery has significant implications for the chemical industry, which currently produces large quantities of unwanted chemicals.

SourceUniversity of Michigan·JournalScience·DateMar 28, 2013