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Science News Archive November 2013


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.

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.

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.

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.

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.

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.

Apple iPhone 17 Pro

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

Stingray movement could inspire the next generation of submarines

Researchers study stingray movement to develop more efficient unmanned underwater vehicles, allowing for deeper ocean exploration and rescue efforts. The unique swimming style of stingrays may lead to breakthroughs in submarine design, inspired by nature's optimal swimming gait.

Queen bee's honesty is the best policy for reproduction signals

Researchers found that queen bees signal detailed information about their mating state and reproductive quality to workers, influencing colony dynamics. This honest communication may help explain the rapid rates of queen loss and turnover reported by beekeepers.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

UT Arlington professor will use NSF funds to reveal reactions' inner workings

A UT Arlington professor will use a $450,000 NSF grant to study the interaction between metals and organic compounds, aiming to create more energy-efficient and sustainable chemical reactions. The research may lead to new technologies for producing valuable industrial chemicals such as ethylene oxide and alcohols.

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.

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...

Meta Quest 3 512GB

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

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.

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.

Celestron NexStar 8SE Computerized Telescope

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

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.