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Science News Archive November 2013 - Page 17


Page 17 of 30

Deciphering genetic echoes from the past: Illuminating human history

Scientists have used genetics to analyze DNA and discover an influx of European genes into Caribbean populations after Columbus' arrival. The results demonstrate how deciphering genetic echoes can illuminate human history, highlighting differences in susceptibility to diseases among populations.

SourcePLOS·JournalPLOS Genetics·DateNov 14, 2013

Understanding a protein's role in familial Alzheimer's disease

Researchers used genetic engineering to precisely study a key protein's role in familial Alzheimer's disease, discovering that simple loss-of-function doesn't contribute to the inherited form. The findings could help elucidate Alzheimer's mechanisms and inform drug development.

SourceUniversity of California - San Diego·JournalCell Reports·DateNov 14, 2013
Apple iPhone 17 Pro

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

Accidental discovery dramatically improves electrical conductivity

Washington State University researchers discovered a 400-fold increase in electrical conductivity of strontium titanate when exposed to light. This phenomenon, known as persistent photoconductivity, could lead to significant improvements in electronic device performance and capacity, especially with the development of holographic memory.

SourceWashington State University·JournalPhysical Review Letters·DateNov 14, 2013

Quantum world record smashed

A team has achieved a world record 39 minutes for a fragile quantum state to survive at room temperature, paving the way for ultrafast quantum computers. The discovery demonstrates robust and long-lived qubits that could enable efficient quantum calculations.

SourceUniversity of Oxford·JournalScience·DateNov 14, 2013

New approach advances wireless power transfer for electric vehicles

Researchers at NC State University developed a new technology to transmit power wirelessly from a stationary source to a mobile receiver, overcoming previous limitations in efficiency and safety. The system can now efficiently recharge electric vehicles as they drive by, with the goal of increasing power transmission to 50 kW.

SourceNorth Carolina State University·JournalIEEE Transactions on Power Electronics·DateNov 14, 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.

Mass. General study identifies genes uniquely expressed by the brain's immune cells

A new sequencing method identified a set of genes used by microglia to sense their environment, called the 'sensome'. As aging increases, microglia's expression of neuroprotective genes becomes more active while toxic actions are downregulated. This discovery may lead to better understanding and treatments for neurodegenerative disorders.

SourceMassachusetts General Hospital·JournalNature Neuroscience·DateNov 14, 2013

Has the idea of 'zero deforestation' lost its meaning

Researchers argue that separate targets for gross deforestation and reforestation would increase progress toward forest conservation and climate change goals. Monitoring changes in forest cover using satellite data is now technically feasible, but resource allocation remains a challenge.

SourceWinrock International·JournalScience·DateNov 14, 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.

New genetic cause of Warburg Micro syndrome identified

A team of researchers identified the TBC1D20 gene as responsible for Warburg Micro syndrome, a rare genetic disorder characterized by severe physical and mental impairments. The study found that five distinct mutations in the gene cause the disease, with implications for understanding human development and related disorders.

SourceMedical College of Wisconsin·JournalAmerican Journal of Human Genetics·DateNov 14, 2013

New statistical tools being developed for mining cancer data

Researchers are creating new statistical tools to analyze massive amounts of cancer data and identify hidden relationships between biomarkers. The goal is to develop a framework that can combine continuous and noncontinuous variables, allowing for more accurate insights into the complex nature of cancer.

SourceRice University·DateNov 14, 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.

Low-dose treatment may block malaria transmission

Researchers found that lower doses of primaquine are as effective as higher doses in reducing malaria transmission, and may play a crucial role in malaria elimination. The study suggests that low-dose primaquine is safe in G6PD-normal individuals and could be used to block malaria transmission.

SourceLondon School of Hygiene & Tropical Medicine·JournalThe Lancet Infectious Diseases·DateNov 14, 2013

Baby boys at higher risk of death and disability due to preterm birth

A groundbreaking global study on preterm birth and disability has found baby boys are at a higher risk of death and disability due to preterm birth than baby girls. The study reveals that boys are 14% more likely to be born preterm than girls, with disabilities ranging from learning problems and blindness to deafness and motor problems.

SourceMarch of Dimes Foundation·JournalPediatric Research·DateNov 14, 2013

Danish researchers predict risk of valvular heart disease

Danish researchers have identified a clear link between narrowed heart valves and high levels of lipoprotein(a) in the blood, which may help prevent valvular heart disease. The study found that people with very high levels of lipoprotein(a) are two to three times more likely to develop aortic stenosis.

SourceUniversity of Copenhagen·JournalJournal of the American College of Cardiology·DateNov 13, 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.

Plasma experiment demonstrates admirable self-control

A joint experiment between Chinese and American scientists successfully demonstrated a tokamak fusion reactor's ability to maintain high fusion performance for extended periods. The experiment exploited plasma self-generations of electrical current, reducing the need for external coils and increasing cost-effectiveness.

SourceAmerican Physical Society·DateNov 13, 2013

BU study finds gymnasts' face high exposure to flame retardants

A recent study published in Environmental Science and Technology found that competitive gymnasts have a higher exposure to potentially harmful flame-retardants than the general population. The average concentration of PentaBDE in gymnasts' blood sera was 4-6.5 times higher than in general U.S. population groups.

SourceBoston University School of Medicine·DateNov 13, 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.

Study: Your brain sees things you don't

Researchers found that brainwaves indicate the brain processes and understands hidden objects in everyday life, despite the subjects not consciously perceiving them. The study challenges existing models of how the brain processes visual information, suggesting a more complex role for the brain in interpreting visual input.

SourceUniversity of Arizona·JournalPsychological Science·DateNov 13, 2013

Study finds widespread use of opioid medications in nonsurgical hospital patients

A study analyzing over 1 million hospital admissions found that over 50% of nonsurgical patients were prescribed opioids, with high doses and late discharge increasing the risk of adverse events. Regional variation in prescribing rates was also observed, with a 37% difference between the highest and lowest regions.

SourceBeth Israel Deaconess Medical Center·JournalJournal of Hospital Medicine·DateNov 13, 2013

Redesigned protein opens door for safer gene therapy

Researchers at KU Leuven developed a new protein fusion that combines HIV and MLV replication proteins to create a safer viral vector for gene therapy. This fusion protein reduces the risk of cancer-causing mutations when integrated into human cells, paving the way for more effective treatments for blood diseases.

SourceKU Leuven·JournalCell Reports·DateNov 13, 2013
Apple Watch Series 11 (GPS, 46mm)

Apple Watch Series 11 (GPS, 46mm) tracks health metrics and safety alerts during long observing sessions, fieldwork, and remote expeditions.

Compound stymies polyomaviruses in lab tests

Researchers at Brown University have identified a small molecule compound called Retro-2 that successfully controls the spread of three polyomaviruses in human cell cultures. The compound protects up to 90.5% of cells from infection, offering new hope for treatment options.

SourceBrown University·JournalmBio·DateNov 13, 2013

McMaster researchers test bandaging for swollen arm

Researchers found that simple compression bandages are as effective as expensive daily lymphatic massages in treating breast cancer-related arm swelling, known as lymphedema. The study followed over 100 women with breast cancer and found no difference between the two treatments.

SourceMcMaster University·JournalJournal of Clinical Oncology·DateNov 13, 2013

Feral cats avoid urban coyotes, are surprisingly healthy

A recent study found that feral cats in urban areas tend to avoid core activity areas of urban coyotes, which can be up to 40% of their home range. This avoidance is likely due to the threat posed by coyotes, leading to a reduced impact on wildlife in urban green spaces.

SourceOhio State University·JournalPLOS ONE·DateNov 13, 2013

Snow melts faster under trees than in open areas in mild climates

Researchers at the University of Washington have found that tree cover causes snow to melt more quickly in warm climates. In contrast, open areas tend to keep snow on the ground longer into the spring and summer. The study used temperature data from around the world to support its findings.

SourceUniversity of Washington·JournalWater Resources Research·DateNov 13, 2013

Squeeze and you shall measure -- squeezed coherent states shown to be optimal for gravitational wave

Physicists at the University of Warsaw and Hanover demonstrate that experimentally available squeezed states are optimal for improving the precision of measurements in gravitational wave detectors. This breakthrough improves sensitivity by up to 30%, allowing for more accurate detection of subtle spacetime vibrations.

SourceUniversity of Warsaw, Faculty of Physics·JournalPhysical Review A·DateNov 13, 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.

Lignin-feasting microbe holds promise for biofuels

A rainforest microbe, Enterobacter lignolyticus SCF1, breaks down lignin by breathing it, potentially improving biofuel production. The microbe's enzymes degrade 56% of lignin in 48 hours, opening up new possibilities for efficient and sustainable biofuels.

SourceDOE/Lawrence Berkeley National Laboratory·JournalFrontiers in Microbiology·DateNov 13, 2013

Building a better tokamak by blowing giant plasma bubbles

Researchers at the National Spherical Torus Experiment have successfully created giant plasma bubbles using a method called Coaxial Helicity Injection, which harnesses the power of magnetic reconnection. The simulation results shed light on the complex mechanisms behind this phenomenon, revealing how forces and currents interact to gen...

SourceAmerican Physical Society·DateNov 13, 2013

Finding antitumor T cells in a patient's own cancer

Researchers at the University of Pennsylvania School of Medicine have developed a method to isolate and expand antitumor T cells from human tumor tissue. These T cells recognize specific proteins on cancer cells, making them potential candidates for targeted immunotherapy.

SourceUniversity of Pennsylvania School of Medicine·JournalClinical Cancer Research·DateNov 13, 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.

Deletion of any single gene provokes mutations elsewhere in the genome

Researchers found that deleting a single gene in yeast cells leads to compensatory mutations in another gene, which could affect genetic analysis in cancer and other fields. This discovery suggests that genomes are highly interconnected and that removing one part can cause another part to warp elsewhere.

SourceJohns Hopkins Medicine·JournalMolecular Cell·DateNov 13, 2013

Lifting fusion power onto an (optimized) pedestal

Scientists have developed a new technique to optimize the transport barrier in fusion plasmas, which is crucial for increasing future fusion power performance. By understanding the pedestal's behavior and its limitations, researchers can predict and improve its pressure and width, leading to enhanced fusion power production.

SourceAmerican Physical Society·DateNov 13, 2013
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.

Nature's glowing slime: Scientists peek into hidden sea worm's light

Researchers have found that the bioluminescent display of a marine worm produces a long-lasting blue glow through a slimy mucus secreted from its body. The mucus contains riboflavin, vitamin B2, which is acquired by the worm through its diet or symbiotic bacteria.

SourceUniversity of California - San Diego·JournalPhysiological and Biochemical Zoology·DateNov 13, 2013

Buffaloberry may be next 'super fruit'

The buffaloberry contains high amounts of lycopene and methyl-lycopenoate, making it an excellent source of antioxidants and nutrients. The fruit is also being considered as a natural food colorant and has potential applications in commercial wine production.

SourceInstitute of Food Technologists·JournalJournal of Food Science·DateNov 13, 2013

Tossed on the waves: Charting the path of ejected particles

Scientists at DIII-D National Fusion Facility shed light on mechanisms that eject fast ions from plasma, enabling detailed tests of models predicting these effects in future reactors. By analyzing particle interactions with multiple waves, researchers gain unprecedented insight into fundamental wave-particle physics.

SourceAmerican Physical Society·DateNov 13, 2013

New way to dissolve semiconductors holds promise for electronics industry

Researchers have discovered a novel liquid that can dissolve nine types of key semiconductors at room temperature and normal air pressure. The finding holds promise for improving electronic applications such as solar cells by creating low-cost, semiconducting thin films.

SourceAmerican Chemical Society·JournalJournal of the American Chemical Society·DateNov 13, 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.

Natural disasters of the past can help solve future problems

Researchers are using past natural disasters to develop models of potential future events, highlighting the importance of local community resilience. By analyzing geological and social parameters, scientists aim to create a more robust framework for disaster preparedness.

SourceAarhus University·JournalNatural Hazards and Earth System Sciences·DateNov 13, 2013

Schools help kids choose carrots over candy bars

Research led by Michigan State University found that schools offering healthful snack options can significantly improve students' diets. By implementing Smart Snacks nutrition standards, schools can boost daily consumption of whole grains, fruits, and vegetables, leading to improved overall nutrition.

SourceMichigan State University·JournalChildhood Obesity·DateNov 13, 2013

Taiwan scientists report first case of new bird flu virus in humans

Researchers identified a novel avian-origin H6N1 virus that closely resembles chicken H6N1 viruses circulating in Taiwan since 1972. The virus has a mutation that could increase its preference for human SAα-2,6 receptors, making it more infectious to humans.

SourceThe Lancet_DELETED·JournalThe Lancet Respiratory Medicine·DateNov 13, 2013

Major chemical companies turn to new specialties for growth

In response to economic downturns, large chemical firms are reorganizing by acquiring specialty companies with high market potential. DuPont's Danisco acquisition and Dow's Rohm and Haas purchase have proven successful in shedding underperforming businesses.

SourceAmerican Chemical Society·JournalChemical & Engineering News·DateNov 13, 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.

Fossil of new big cat species discovered; oldest ever found

A team of researchers has discovered the oldest known big cat fossil, a 4-million-year-old skull of a new species called Panthera blytheae. The find challenges previous assumptions about the evolution of big cats and suggests they evolved in central Asia before spreading to other regions.

SourceUniversity of Southern California·DateNov 13, 2013
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.

Probiotics may add functionality to fruit juices

Fruit juices could serve as carriers for probiotics, offering a dairy-free alternative. The study found that certain strains are stable in fruit juice without affecting sensory scores.

SourceInstitute of Food Technologists·JournalJournal of Food Science·DateNov 13, 2013

Fusion foe lends a helping hand

Recent experiments have found that lithium bound to carbon walls in fusion devices plays a key role in improving plasma performance. The combination of lithium, oxygen, and carbon improves deuterium retention and reduces recycling, leading to enhanced energy confinement and reduced edge plasma instabilities.

SourceAmerican Physical Society·DateNov 13, 2013