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Science News Archive April 2013


Page 6 of 32

Europe needs genetically engineered crops, scientists say

The European Union's current policies on genetically engineered crops are undermining its competitiveness and humanitarian activities in the developing world. The authors recommend adopting rational, science-based principles to prevent economic decline and lower standards of living across the continent.

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.

Whales able to learn from others

A study found that humpback whales can learn new feeding techniques by observing others, with a new technique called lobtail feeding spreading to 40% of the population. This demonstrates the importance of cultural transmission in shaping whale behavior and cognition.

Huddersfield scientist helps to reveal a link in the evolutionary chain

A team of scientists, including Dr Paul Brotherton from the University of Huddersfield, investigated haplogroup H mitochondrial genomes from ancient human remains to understand modern European populations. The results show a significant population upheaval around 4,000 BC, potentially due to large-scale migration or growth.

Fighting bacteria with a new genre of antibodies

Scientists have developed a new family of selective antimicrobial agents that use synthetic colloid particles to recognize and inactivate specific types of bacteria. These 'colloid antibodies' show promise as a powerful tool against antibiotic-resistant bacteria.

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.

Body size conveyed by voice determines vocal attractiveness

A study published in PLOS ONE found that listeners gauge a speaker's body size from their voice frequency, quality, and formant spacing. Deep male voices and high-pitched female voices are perceived as more attractive due to their association with smaller body sizes.

Direct-acting antivirals now ready for prime time

Recent studies demonstrate encouraging data for direct-acting antiviral agents in a wide range of HCV patient populations. The trials showed high SVR12 rates and low adverse events, with some regimens achieving up to 90% success rate, offering new treatment options for patients with genotype 1, 4, 5, or 6.

Video reveals cancer cells' Achilles' heel

Researchers used high-quality video imaging to investigate why a particular cancer drug is effective at killing cells. The study found that the drug creates a cluster of protein molecules on one side of the cell, making it easier for natural killer cells to kill it.

Apple iPhone 17 Pro

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

Coffee may help prevent breast cancer returning, study finds

A study at Lund University found that drinking two or more cups of coffee daily may reduce the risk of breast cancer recurrence in patients taking Tamoxifen. Caffeine has been shown to hamper cancer cell growth and activate Tamoxifen, making it more efficient.

Apple AirPods Pro (2nd Generation, USB-C)

Apple AirPods Pro (2nd Generation, USB-C) provide clear calls and strong noise reduction for interviews, conferences, and noisy field environments.

Majority of children readmitted to hospital following stem cell transplant

A study by Dana-Farber Cancer Institute found that nearly two-thirds of children receiving stem cell transplants were readmitted to the hospital within six months for treatment of unexplained fevers, infections or other problems. Children who received donor cells were twice as likely to be readmitted compared to those with their own st...

Study: Teen years may be critical in later stroke risk

A recent study found that living in the 'stroke belt' during teenage years significantly increases future stroke risk. People who spent their teenage years in the region were 17% more likely to have a stroke in later life compared to those who did not.

The microbes you inhale on the New York City subway

A study published in Applied and Environmental Microbiology found that the microbial population in NYC subway air is nearly identical to ambient air on city streets. The researchers used new methodologies, including fast collection of aerosols and rapid sequencing technology, to efficiently monitor the subway's microbial population.

Clenching right fist may give better grip on memory

A study published in PLOS ONE found that clenching the right fist before memorizing information strengthens the memory, while clenching the left fist before recalling improves verbal recall. Researchers suggest this effect may be due to brain regions associated with memory formation being activated by hand-clenching.

Researchers use nasal lining to breach blood/brain barrier

A team of researchers has successfully developed a method to breach the blood-brain barrier using the nasal lining, allowing for higher molecular weight drug delivery to the central nervous system. This breakthrough opens up new treatment options for neurodegenerative and CNS diseases affecting millions of people worldwide.

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.

No rebirth for insulin secreting pancreatic beta cells

Researchers used fluorescent cell labeling to determine when precursor cells develop into pancreatic beta cells. They found no evidence of neogenesis in adult mice, contradicting previous assumptions about beta cell creation. This discovery has significant implications for understanding diseases like diabetes.

3-D breast screens improve detection and reduce false positives

A large-scale trial found that integrated 2D and 3D screening detected more cancers and reduced false positives compared to 2D screening alone. The study showed a rate of 5.3 cancers per 1,000 screens detected by 2D screening versus 8.1 with combined 2D and 3D screening.

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.

Air pollution linked to hardening of the arteries

Long-term exposure to air pollution may be linked to heart attacks and strokes by speeding up atherosclerosis, or hardening of the arteries. Higher concentrations of fine particulate air pollution were found to be linked to faster thickening of the inner two layers of the common carotid artery.

Discovered: A mammal and bug food co-op in the High Arctic

In a surprising finding, researchers found that pikas prefer vegetation grazed on by caterpillars, which acts as natural fertilizer. This unusual partnership could have long-term implications for competition and food resources in northern mountain environments.

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.

Dietary medium chain triglycerides prevent nonalcoholic fatty liver disease

Scientists have discovered that dietary medium chain triglycerides (MCT) can prevent the development of nonalcoholic fatty liver disease (NAFLD) in patients with obesity and type II diabetes. MCT substitution for polyunsaturated fat reduces liver fat accumulation and progression of injury, suggesting a potential future therapy.

Facebook interests could help predict, track and map obesity

A Boston Children's Hospital study correlates Facebook users' interests with obesity rates in cities and neighborhoods nationwide. The research suggests that areas with higher percentages of activity-related interests have lower obesity rates, while those with more television-related interests have higher rates.

AmScope B120C-5M Compound Microscope

AmScope B120C-5M Compound Microscope supports teaching labs and QA checks with LED illumination, mechanical stage, and included 5MP camera.

New LED streetlight design curbs light pollution

A new LED streetlight design harnesses high-efficiency LEDs to provide uniform illumination while minimizing light pollution and glare. The design achieves an optical utilization factor of 51-81 percent, reducing light pollution by up to a fifth.

Recipe for low-cost, biomass-derived catalyst for hydrogen production

Researchers at Brookhaven National Laboratory have developed a low-cost, stable, and effective catalyst that can produce hydrogen in an environmentally friendly manner. The catalyst, made from renewable soybeans and abundant molybdenum metal, has the potential to increase the use of clean energy sources.

A potential biomarker for pregnancy-associated heart disease?

Researchers at the University of Liege discovered a molecule, miR-146a, that can serve as a biomarker for peripartum cardiomyopathy. Elevated serum miR-146a levels were found in pregnant women who developed PPCM, suggesting its potential use to predict disease risk.

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.

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.

Improving survival of pig sperm

Scientists at the University of Illinois have identified two sugars that help retain pig sperm in the sow oviduct. By understanding this adhesion system, researchers hope to develop a laboratory test to detect these molecules and potentially improve semen storage.

Psychopaths are not neurally equipped to have concern for others

A study published in JAMA Psychiatry found that psychopaths lack the basic neurophysiological 'hardwiring' necessary for caring about others. This is reflected in altered brain activity in response to pain and distress, with reduced activation in regions critical for empathy and increased activity in areas linked to emotion and reward.

Battery and memory device in 1

ReRAM cells exhibit battery voltage properties, violating traditional memristor theory. Researchers reveal new insights into the electrochemical components, enabling optimized design and potential new applications

After brain injury, new astrocytes play unexpected role in healing

Researchers at Duke University Medical Center found that new astrocytes produced from stem cells after brain injury are effective in promoting recovery. These cells make their way to the injured area to form an organized scar, which stops bleeding and allows tissue recovery.

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.

UW Medicine receives $500,000 Purple Heart Service Foundation grant

The University of Washington School of Medicine's Division of Pain Medicine is developing leading-edge technologies to improve care for veterans suffering from post-traumatic stress (PTS), traumatic brain injury (TBI), and chronic pain. The grant will support provider education, clinical care guidelines, and outcomes-based research.

Scripts help novice instructors teach pediatric CPR

A new teaching technique using scripted debriefings improved medical knowledge and instructor ratings among novice pediatric CPR trainers. The 'advocacy inquiry' method helped participants reflect on their decisions, leading to better performance in emergency situations.

Speeding the search for better methane capture

A computational study discovered several zeolite structures with sufficient methane sorption capacity and selectivity for effective capture. The most promising candidate, SBN, has an extraordinarily high performance for concentrating methane from low-quality natural gas and coal-mine ventilation air.

JCI early table of contents for April 24, 2013

Researchers at Cedars-Sinai Medical Center discovered that the renin angiotensin system plays a fundamental role in hypertension. They found that mice without ACE in their kidneys were resistant to high blood pressure, indicating that targeting angiotensin production may be an effective approach to treat hypertension. In contrast, stud...

Mysterious hot spots observed in a cool red supergiant

Researchers have discovered two hot spots in the outer atmosphere of Betelgeuse, a cool red supergiant. The hot spots are separated by half the visual diameter of the star and have temperatures of around 4,000-5,000 Kelvin, much higher than expected.

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.

Scientists awarded $5.5 million for wheat, rice blast research

A team of Kansas State University researchers, led by Barbara Valent, has been awarded $5.5 million to develop resistant varieties and diagnostic tools for two deadly diseases: wheat blast and rice blast. The project aims to improve U.S. rice production and protect the nation's wheat crop.