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Science News Archive March 2014


Page 19 of 34

Less is more: New theory on why very low nutrient diets can extend lifespan

Researchers at UNSW Australia propose that very low nutrient diets may extend lifespan in laboratory animals by increasing cellular recycling and repair mechanisms. This effect could potentially lead to longer, healthier lives for humans through a better understanding of these cellular recycling mechanisms.

Climate change will reduce crop yields sooner than we thought

A study by the University of Leeds reveals that global warming of 2°C will negatively impact crop yields in temperate and tropical regions, with reduced yields starting from the 2030s. The impact of climate change on crops will vary from year-to-year and place-to-place, becoming more erratic.

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.

The rush to rain

A new analysis reveals that dust in the air absorbs sunlight west of India, warming the air and strengthening winds carrying moisture eastward. The study also shows that natural airborne particles can influence rainfall in unexpected ways, with changes in one location rapidly affecting weather thousands of miles away.

Nectar: A sweet reward from plants to attract pollinators

A team of scientists has identified the transport protein SWEET9 as a key player in three diverse flowering plant species, demonstrating its essential role in nectar production. By analyzing specially engineered plants lacking this transporter, they found that sugars accumulate in stems instead of being secreted into nectaries.

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.

Major 'third-hand smoke' compound causes DNA damage -- and potentially cancer

Researchers have found that third-hand smoke compounds can cause DNA damage and stick to it, potentially leading to cancer. The biggest risk is for babies and toddlers who are more vulnerable to environmental hazards. Removing affected items and taking steps like vacuuming and washing clothes can help reduce exposure.

Honey is a new approach to fighting antibiotic resistance: How sweet it is!

Researchers at Salve Regina University discovered that honey has multiple mechanisms to combat bacterial infections, including the osmotic effect, acidity, and polyphenols. The study found that honey inhibits biofilm formation and disrupts quorum sensing, making bacteria more susceptible to conventional antibiotics.

Bionic plants

Researchers embedded carbon nanotubes into chloroplasts to capture light energy by 30 percent. Plants were also modified to detect nitric oxide, a common environmental pollutant. This represents the first steps in launching plant nanobionics, a field that could turn plants into self-powered devices.

Apple iPhone 17 Pro

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

High-tech materials purify water with sunlight

Scientists have developed a water purifier that can remove pharmaceuticals, pesticides and other pollutants from drinking water using sunlight. The new technology combines titanium dioxide and graphene to create an easy-to-use system that could be incorporated into consumer products.

Cancer therapy may be too targeted

Scientists have discovered two novel genes linked to angiosarcoma, a rare and aggressive cancer of blood vessels. The study found that these genes are mutated in nearly 40% of cases, suggesting potential new targets for treatment.

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.

Southern Ocean iron cycle gives new insight into climate change

An international team of researchers found that deep winter mixing plays a crucial role in transporting iron to the surface, supporting phytoplankton growth and the aquatic food chain. The study highlights the unique aspects of the iron cycle and its sensitivity to climate changes.

Mercury's contraction much greater than thought

Researchers have discovered that Mercury has contracted by as much as 4.4 miles due to cooling, exceeding previous estimates of ½ to 2 miles. This finding is consistent with thermal models and resolves a decades-old paradox in understanding the planet's history.

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.

How diabetes drugs may work against cancer

Researchers have identified a key pathway that helps cancer cells survive in low-glucose environments, and found that certain diabetes drugs can inhibit this pathway to kill cancer cells. The study provides new insights into how anti-cancer properties of diabetes drugs like metformin may work.

Nectar: A sweet reward from plants to attract pollinators

A team of scientists has identified the key player in plant nectar production, revealing that plants rely on SWEET9 to transport sugars into extracellular areas where nectar is secreted. The discovery suggests that this process evolved early in the formation of flowering plants and may have increased genetic diversity.

Better-tasting reduced-fat desserts, dressings, sauces: Coming soon?

Researchers have successfully developed a method to create high-quality, lower-fat versions of popular food products like sauces, dressings, and desserts. By adjusting the calcium level and acidity, they were able to improve the texture, appearance, and flavor of these foods without sacrificing taste or nutritional value.

Potentially safer, greener alternative to BPA could come from papermaking waste

Scientists have developed a potentially safer and greener alternative to the hormone-disrupting chemical BPA. Bisguaiacol-F (BGF), synthesized from lignin, is being touted as a suitable replacement due to its similar shape to BPA and lower toxicity levels. The researchers believe BGF could be ready for market within five years.

Celestron NexStar 8SE Computerized Telescope

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

Researchers: Northeast Greenland ice loss accelerating

Researchers found that the northeast Greenland ice sheet is no longer stable and contributing to global sea level rise. The ice stream's retreat accelerated by 20 kilometers over the last decade, suggesting a positive feedback mechanism that could increase future sea level rise.

Young athletes with knee pain may turn to meniscus transplant

New research shows a 95% success rate after five years for meniscal allograft transplantation (MAT) surgery, with an additional operation required in 32% of cases. Patients can recover and return to active lifestyles with the right treatment, according to lead author Dr. Frank McCormick.

A battery that 'breathes' could power next-gen electric vehicles

Researchers have made progress on a 'breathing' battery that could replace lithium-ion technology in electric vehicles, with the potential for nearly twice the energy storage capacity. The new battery design uses air instead of traditional materials and has shown high conductivity and the ability to discharge and recharge 100 times.

Tommy John Surgery a good solution for MLB pitchers

A new study reveals that 83% of major league pitchers who underwent Tommy John Surgery returned to the mound, with most returning after an average of 20.5 months. The surgery also showed positive performance indicators, including a drop in ERA and pitching losses.

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.

ACL tears are not the end for college football players

New data reveals that 82% of Division 1 NCAA football players return to play after ACL surgery, with motivation and skill playing key roles. Sophomores and juniors show the highest return rates, at approximately 90%, while scholarship players average around 87.6% recovery.

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.

Harnessing everyday motion to power mobile devices (video)

Scientists have developed a way to convert mechanical energy into electricity, enabling the creation of portable and sustainable power sources. The technology, known as triboelectric nanogenerators, can harness energy from everyday movements such as walking or rubbing, making it possible to charge mobile devices on the go.

IceBridge starts with sea ice surveys

IceBridge began its 2014 Arctic campaign with two sea ice surveys north of Greenland, focusing on changes in sea ice elevation and thickness. The mission aims to collect more data, including cross-basin surveys over the Arctic Ocean and flights over the Beaufort and Chukchi seas.

Parents receiving heart disease diagnosis for infants need better information

A survey of parents with congenital heart disease found that physicians often fail to provide compassionate and understandable information, leading to difficult decisions and stress. The study suggests that physicians should offer context, including success rates and internet resources, to help guide treatment choices.

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.

Gastric bypass surgery may diminish knee pain in obese patients

A new study suggests that gastric bypass surgery can diminish knee pain in obese patients without osteoarthritis, with improvements comparable to those achieved through knee replacement surgery. Patients who underwent bariatric surgery reported significant reductions in knee pain and physical function at one-year follow-up.

Critical role of one gene to our brain development

Research from the University of Adelaide has confirmed that gene USP9X is crucial for early human brain development and intellectual disability. Mutations in this gene disrupt normal brain cell functioning, leading to disorders such as epilepsy and autism.

Big data tackles tiny molecular machines

Biophysicists at Rice University developed a computational technique that combines genetic and structural data to analyze complex molecular machines. The technique, called DCA, reveals previously unknown details about protein transitions between functional states.

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.

Drivers with hemianopia fail to detect pedestrians

Researchers found that drivers with hemianopia had lower detection rates for pedestrians on the side of their field loss due to inadequate scanning patterns. These individuals often failed to scan the entire intersection or scanned too little, increasing the risk of accidents.

Researchers find high acceptability of 3-colored raspberry jelly

A new study published by the Institute of Food Technologists found that a mixed raspberry jelly with black and yellow raspberries had high sensory acceptability. The production of a 3-colored jelly could be an alternative to traditional single-color jellies, providing additional health benefits from antioxidants.

Fluke 87V Industrial Digital Multimeter

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

Specialized care improves treatment outcomes in patients with sleep apnea

A new study found that patients with obstructive sleep apnea who received care from board-certified sleep medicine physicians and accredited sleep centers were two times more likely to be adherent to positive airway pressure (PAP) therapy. Patient satisfaction was also associated with physician certification.

Southeastern fires consist of prescribed and wild

Seven large fires are burning in the Southeast, with six located in Oklahoma and one in Louisiana. Prescribed fires account for the majority of these fires, reducing wildfire damage and improving habitat, according to land management officials.

Brain mapping confirms patients with schizophrenia have impaired ability to imitate

Researchers used brain-mapping techniques to study imitation in schizophrenia patients and found abnormal brain activity in areas associated with imitation. The findings suggest that individuals with schizophrenia may have a less specialized brain network for processing social information, leading to difficulties with social interactions.

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.

Managing Type 1 diabetes as an adolescent

The University of Colorado will receive a $2.1 million grant to help adolescents with Type 1 diabetes manage their disease and improve health outcomes through the Flexible Lifestyle 3mpowering Change (FL3X) study. The study aims to teach teens how to manage insulin, blood sugar, and daily tasks, with positive outcomes from a pilot study.

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.

In the lab, scientists coax E. coli to resist radiation damage

Researchers found that just a handful of genetic mutations give E. coli the capacity to withstand ionizing radiation, making them similar to Deinococcus radiodurans. The study demonstrates active DNA repair mechanisms that allow organisms to resist radiation damage.

Significant head, neck injury risk associated with extreme sports

A new study found that extreme sports like skateboarding and snowboarding have the highest risk of severe head and neck injuries. Concussions were the most common injury, with a higher risk in snowboarding and skateboarding. The Academy recommends helmet use for safer participation.