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Science News Archive December 2011 - Page 7


Page 7 of 23

Northwestern scientist gets mentoring award at White House

Teresa Woodruff, a Northwestern University professor, received the Presidential Award for Excellence in Science, Mathematics and Engineering Mentoring at the White House. The award honors her Women's Health Science Program for High School Girls and Beyond, which mentors urban minority high-school girls in science and health.

SourceNorthwestern University·DateDec 16, 2011

Notre Dame researchers demonstrate new DNA detection technique

The Notre Dame research team has demonstrated a novel DNA detection method called laser transmission spectroscopy (LTS) that can rapidly determine the size, shape, and number of nanoparticles in suspension. The technique is highly sensitive and takes only a few seconds to score a sample for species presence or absence, making it a prom...

SourceUniversity of Notre Dame·JournalPLOS ONE·DateDec 16, 2011

Caterpillars mimic one another for survival

Researchers found that caterpillars in Neotropical regions mimic the warning coloration of toxic species for protection. The study reveals that mimicry is a common survival tactic among caterpillars, with some species forming Müllerian mimicry rings to avoid predators.

SourceEntomological Society of America·JournalAnnals of the Entomological Society of America·DateDec 16, 2011
Apple iPhone 17 Pro

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

Traumatic experiences may make you tough

Research suggests that small amounts of trauma can help individuals develop resilience, contrary to the common notion that traumatic experiences are always detrimental. People who have experienced some negative life events tend to have better outcomes than those with no adverse experiences or those with excessive adversity.

SourceAssociation for Psychological Science·JournalCurrent Directions in Psychological Science·DateDec 16, 2011

Fear no supernova

Supernovas release enormous amounts of energy, but are too far away to harm Earth's ozone layer. Gamma-ray bursts could pose a threat if directed towards our planet, but estimates suggest it's unlikely to occur in the near future.

SourceNASA/Goddard Space Flight Center·DateDec 16, 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.

Quantum cats are hard to see

Researchers demonstrate why quantum mechanics' physical effects are rarely seen in daily life. They found that precisely counting photons becomes increasingly difficult as the number of photons increases.

SourceUniversity of Calgary·JournalPhysical Review Letters·DateDec 16, 2011

Tool enables scientists to uncover patterns in vast data sets

Researchers have developed a tool called Maximal Information Coefficient (MIC) that can uncover patterns in large data sets. MIC can tease out recurring events or sets of data hidden in health information, the changing bacterial landscape of the gut, and statistics from competitive sports.

SourceU.S. National Science Foundation·JournalScience·DateDec 16, 2011

Advantages and motivations uncertain behind use of brachytherapy for breast cancer radiotherapy

A study found APBIb use increased from 0.4% to 6.6% between 2000 and 2007, with wide regional disparities and racial/ethnic differences in utilization. The authors suggest unwarranted variation in practice may be present, highlighting the need for further research on APBI effectiveness.

SourceJournal of the National Cancer Institute·JournalJNCI Journal of the National Cancer Institute·DateDec 16, 2011

Protecting confidential data with math

Researchers Rudolf Ahlswede and Harout Aydinian analyze a security-control model for statistical databases, proposing an optimal collection of SUM queries to prevent compromise of confidential information. Query restriction is one approach used to limit the amount of data that can be retrieved by users.

SourceSociety for Industrial and Applied Mathematics·JournalSIAM Journal on Discrete Mathematics·DateDec 16, 2011

GDP up, happiness down

A team of scientists from the University of Vermont measured global happiness using Twitter data over three years. The trend shows a gradual downward trend, with drops in happiness following major events and weekly patterns. The researchers propose a tool for real-time monitoring of collective emotions.

SourceUniversity of Vermont·JournalPLOS ONE·DateDec 16, 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.

No brakes on breast cancer cells

Researchers have discovered a microRNA, miR-520, that suppresses NFkappaB and TGF-b signaling pathways in breast cancer cells. This finding suggests that miR-520 may act as a tumor suppressor and could lead to new treatment options for ER-negative breast cancer.

SourceHelmholtz Association·JournalOncogene·DateDec 16, 2011

Group sex among adolescents a public health concern, new study says

A recent study published in the Journal of Urban Health found that one in 13 teenage girls reported having group-sex experience, which was often pressured or coerced. The study highlights the need for additional research on this topic and provides insights into the potential risks to sexual and reproductive health.

SourceBoston University School of Medicine·JournalJournal of Urban Health·DateDec 16, 2011

Plasma treatment zaps viruses before they can attack cells

Researchers found a method to damage adenoviruses using plasma in the lab environment, reducing viral activity by up to 99%. The technique could lead to safer stem-cell therapies for patients at risk of life-threatening infections.

SourceAmerican Institute of Physics·JournalApplied Physics Letters·DateDec 16, 2011

Study suggests early ART in recently HIV-infected patients preferable to delayed treatment

A new study suggests that immediate antiretroviral therapy (ART) is more beneficial for recently infected HIV patients than deferred treatment. The study found that participants who received ART immediately had better outcomes and were protected from disease progression not only during treatment but also after treatment was stopped.

SourceInfectious Diseases Society of America·JournalThe Journal of Infectious Diseases·DateDec 16, 2011

Long-term inhaled dry powder mannitol improves lung function in CF

A new study found that adding inhaled dry powder mannitol to standard therapy for cystic fibrosis improved lung function over 52 weeks. The treatment showed a significant improvement in forced expiratory volume in one second (FEV1) and fewer pulmonary exacerbations compared to the control group.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateDec 16, 2011
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.

Can science predict a hit song?

Researchers at the University of Bristol used musical features and machine learning algorithms to predict song hits in the UK singles chart. They found that danceability increased in popularity from the late 1970s and that slower styles, such as ballads, were more likely to become hits in the 1980s.

SourceUniversity of Bristol·DateDec 16, 2011

Inhaled glucocorticoids during pregnancy and offspring pediatric diseases

A comprehensive study found that maternal use of inhaled glucocorticoids for asthma during pregnancy is not associated with most diseases in childhood, but may increase the risk of endocrine and metabolic disorders. The study followed 65,085 mother-child pairs from early pregnancy to childhood.

SourceAmerican Thoracic Society·JournalAmerican Journal of Respiratory and Critical Care Medicine·DateDec 16, 2011

2 research facilities awarded technology seeding grants

Two Ontario research facilities, The Centre for Applied Genomics and StemCore Laboratories, have been awarded $10,000 each to develop leading-edge technologies in Next Generation Sequencing (NGS) methods. Dr. Stephen Scherer will compare genome enrichment and exome capture kits, while Pearl Campbell will optimize ChIP-Seq methods.

SourceOntario Genomics Institute·DateDec 16, 2011

Remote wilderness polluted by humans

A comprehensive study of 36 lakes in the USA, Canada, Greenland, and Svalbard reveals that biologically active nitrogen from human sources can be traced back to the end of the 19th century. The rate of change has accelerated over the past 60 years, coinciding with the commercialization of artificial fertilizer production.

SourceLund University·JournalScience·DateDec 16, 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.

New device creates lipid spheres that mimic cell membranes

Researchers developed a microfluidic device to produce stable, biocompatible lipid vesicles that mimic natural cell membranes. This breakthrough overcomes previous hurdles by generating precisely sized droplets in an oil environment, producing an oil-and-water membrane for lipid assembly.

SourceAmerican Institute of Physics·JournalBiomicrofluidics·DateDec 16, 2011

Midwives use rituals to send message that women's bodies know best

A study by Oregon State University researcher Melissa Cheyney found that midwife-attended home births have better health outcomes, including lower cesarean section rates. Midwives construct woman-centered rituals around pregnancy and birth to put mothers in control, involving family members and downplaying technology.

SourceOregon State University·JournalMedical Anthropology Quarterly·DateDec 16, 2011

UCSF-led team discovers cause of rare disease

A UCSF-led team has identified the gene PRRT2 as the cause of a rare childhood neurological disorder called PKD/IC. The study may improve diagnosis and shed light on other movement disorders like Parkinson's disease.

SourceUniversity of California - San Francisco·JournalCell Reports·DateDec 16, 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.

Following the crowd supports democracy

Researchers found that uninformed individuals can bring about a majority decision, even if the minority is more determined than the majority. The number of undecided individuals must not be excessive, or decisions become unpredictable and follow a random pattern.

SourceMax-Planck-Gesellschaft·JournalScience·DateDec 16, 2011

Rapid rise in wildfires in large parts of Canada?

Large areas of Canada are approaching threshold values for wildfires, increasing the area burnt down annually and fire size. Climate change is expected to cause an abrupt increase in fires, making strategies for combating wildfires reconsidered.

SourceHelmholtz Association·DateDec 16, 2011

Barracuda babies: Novel study sheds light on early life of prolific predator

A University of Miami research team studied the larval stage of great barracuda and sennets, finding they share a similar diet and live in upper 25m ocean layer. The study identifies a size advantage within the larval stage, where bigger larvae are more likely to survive.

SourceUniversity of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science·JournalMarine Biology·DateDec 16, 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.

Close family ties keep microbial cheaters in check, study finds

Experiments with social amoebae reveal that cooperation depends on kinship, and population bottlenecks can stabilize cellular cooperation. The study found that nearly all multicellular organisms begin life as a single cell, and that cheater mutants are more likely to occur in groups where relatedness is low.

SourceU.S. National Science Foundation·JournalScience·DateDec 16, 2011

Novel device removes heavy metals from water

The cyclic electrowinning/precipitation (CEP) system removes heavy metals from water by increasing their concentration, making it possible for a proven metal-removal technique to take over. The automated CEP system can remove up to 99% of copper, cadmium, and nickel, returning the contaminated water to federally accepted standards.

SourceBrown University·JournalChemical Engineering Journal·DateDec 16, 2011

Endophenotype strategies for the study of neuropsychiatric disorders

Researchers identify neurobiological characteristics linked to complex neuropsychiatric disorders as potential biomarkers. Cognitive deficits are recognized as core features of schizophrenia, reflecting a broader, more multidimensional illness than traditional diagnosis.

SourceScience China Press·JournalChinese Science Bulletin·DateDec 16, 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.

Winter diets? The secret is to chill the extremities

Researchers found that red deer lower their heart rates in winter regardless of food intake, suggesting an internal programming mechanism. The deer's ability to regulate body temperature is crucial for conserving energy during the cold season.

SourceUniversity of Veterinary Medicine -- Vienna·JournalJournal of Experimental Biology·DateDec 16, 2011

Tool detects patterns hidden in vast data sets

Researchers developed a tool called MINE that can detect multiple patterns hidden in health information, baseball statistics, and more. It analyzes large data sets with great speed, identifying relationships and ranking them in an equitable way.

SourceHarvard University·JournalScience·DateDec 16, 2011

Let's do the twist: Spiral proteins are efficient gene delivery agents

Researchers at the University of Illinois have developed spiral-shaped proteins that can efficiently deliver DNA segments to cells. The polypeptides outperform commercial agents in terms of efficiency and control toxicity, offering a promising new approach for clinical gene therapy.

SourceUniversity of Illinois at Urbana-Champaign, News Bureau·JournalAngewandte Chemie·DateDec 15, 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.

Shared flavor compounds show up on US menus, rare in Asian cuisines

North American cuisine tends to share more flavor compounds than expected, with ingredients like milk and butter contributing positively to food pairing. In contrast, East Asian cuisine often avoids mixing ingredients with shared flavor compounds, such as beef and ginger, which may negatively impact food pairing.

SourceIndiana University·JournalScientific Reports·DateDec 15, 2011

Can proteins in the blood predict an early death?

Researchers analyzed data from a large study to find that certain protein markers in the blood, such as cystatin C and beta trace protein, are better predictors of an individual's prognosis than creatinine. These markers may indicate not only kidney health but also other aspects of well-being.

SourceAmerican Society of Nephrology·JournalJournal of the American Society of Nephrology·DateDec 15, 2011

Gene discovery explains how fruitflies retreat from heat

Researchers at Duke University Medical Center discovered naturally occurring variations of the TRPA1 gene that allows fruit flies to sense potentially dangerous discomforts, including heat and pain. The findings may have implications for understanding temperature sensitivity in humans and developing new treatments for conditions such a...

SourceDuke University Medical Center·JournalCell Reports·DateDec 15, 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.

Cancer from fetal exposure to carcinogens depends on dose, timing

A recent study found that fetal exposure to carcinogens can lead to different types of cancer later in life, with the type of cancer depending on the stage of pregnancy when the fetus is exposed. The research also showed that mice who received multiple doses of a carcinogen had a higher rate of ovarian and lung cancer.

SourceOregon State University·JournalCancer Letters·DateDec 15, 2011

Gene discovered for Weaver syndrome

Scientists have identified a gene mutation in the EZH2 gene that causes Weaver syndrome, a rare genetic disorder characterized by large size at birth and intellectual disability. This breakthrough discovery enables DNA-based diagnostic testing for the disease, providing definitive answers for families seeking a diagnosis.

SourceChild & Family Research Institute·JournalAmerican Journal of Human Genetics·DateDec 15, 2011

A supernova with a view

The study of the closest supernova in 25 years has shed new light on its formation. The team found that the exploding star was a white dwarf, and while they couldn't rule out a white dwarf merger, their results suggest a medium-sized star supplied the white dwarf with extra material to trigger the explosion.

SourceWeizmann Institute of Science·JournalNature·DateDec 15, 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.

Genome tree of life is largest yet for seed plants

Researchers plotted evolutionary relationships of 150 plant species based on advanced genome-wide analysis, providing insights into genetic basis of diversity. The study resolves the long-standing problem of producing an unequivocal evolutionary tree of seed plants.

SourceAmerican Museum of Natural History·JournalPLOS Genetics·DateDec 15, 2011

Scientists discover second-oldest gene mutation

A new study identified a gene mutation that dates back to 11,600 B.C. and causes a rare vitamin B12 deficiency called Imerslund-Gräsbeck Syndrome. The mutation was found in people of Arabic, Turkish, and Jewish ancestry and is believed to have originated in a single prehistoric individual.

SourceOhio State University Wexner Medical Center·JournalOrphanet Journal of Rare Diseases·DateDec 15, 2011

Teens choose water when calorie count of sugary beverages is easier to understand

A new study found that providing clear caloric information about sugar-sweetened beverages may reduce their consumption among adolescents. Researchers discovered that physically presenting calories as physical activity equivalents was most effective in decreasing sugar-sweetened beverage purchases among black adolescents.

SourceJohns Hopkins Bloomberg School of Public Health·JournalAmerican Journal of Public Health·DateDec 15, 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.

Tool detects patterns hidden in vast data sets

Researchers developed a tool called MINE that can detect multiple patterns in large data sets, including health information, baseball statistics, and bacterial landscapes. The tool identifies relationships in a way that no other software program can, offering tremendous exploratory potential.

SourceBroad Institute of MIT and Harvard·JournalScience·DateDec 15, 2011

A 'fantastic voyage' through the body -- with precision control

A 'fantastic voyage' through the body is now possible with precision control thanks to a new capsule endoscope developed by Tel Aviv University researcher Dr. Gabor Kosa. The device uses MRI technology to navigate the digestive tract, enabling doctors to detect problems and perform biopsies or local drug delivery in a non-invasive manner.

SourceAmerican Friends of Tel Aviv University·JournalBiomedical Microdevices·DateDec 15, 2011

New Research Demonstrates Lean Beef is Good for Heart Health

A new study published in American Journal of Clinical Nutrition found that diets including lean beef every day are as effective in lowering total and LDL 'bad' cholesterol as the 'gold standard' of heart-healthy diets. Participants experienced a 10% decrease in LDL cholesterol from consuming 4.0 oz/day of lean beef daily.

SourcePorter Novelli·JournalAmerican Journal of Clinical Nutrition·DateDec 15, 2011

First low-mass star detected in globular cluster

Astronomers detect first low-mass star in globular cluster M22 using gravitational microlensing, suggesting alternative explanation for cluster mass. The star has less than a fifth of the sun's mass and is 3.2 kiloparsecs from it.

SourceUniversity of Zurich·JournalThe Astrophysical Journal Letters·DateDec 15, 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.

Researchers closer to understanding the evolution of sound production in fish

A study published in Frontiers in Zoology has found a hybrid system in pearl-perch that utilizes characteristics of both slow and fast systems for sound production. This discovery takes researchers closer to understanding the evolution of superfast sonic muscles that drive swimbladder vibration.

SourceVirginia Commonwealth University·JournalFrontiers in Zoology·DateDec 15, 2011