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Science News Archive 2013


Page 199 of 352

'Popcorn' particle pathways promise better lithium-ion batteries

Sandia National Laboratories researchers found that charging and discharging rates are limited by phase transformation initiation, contradicting previous assumptions. They used X-ray microscopy to study ultrathin slices of a commercial-grade battery, revealing a mosaic pathway of lithium-ion movement.

1 in 6 women at fracture clinics report domestic violence

A large international study led by McMaster researchers found that one in six women arriving at orthopedic fracture clinics have been victims of physical, emotional, or sexual violence within the past year. This highlights the need for healthcare professionals to identify and support victims of intimate partner violence, who are often ...

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.

Scientists discover new layer of the human cornea

Researchers at University of Nottingham have identified a previously undetected layer in the human cornea, known as Dua's Layer. This breakthrough discovery could lead to safer and simpler surgical procedures for patients undergoing corneal grafts and transplants.

New archaeogenetic research refutes earlier findings

A new article in Proceedings of the National Academy of Sciences refutes a theory that modern humans settled in southern Asia before the Mount Toba eruption. The research uses mitochondrial DNA evidence and other data to conclude that modern humans arrived in India no earlier than 60,000 years ago.

Study builds dossier on JC polyomavirus

Researchers have found that common mutant forms of the JC polyomavirus are not infectious, but may still contribute to disease. The mutants appear to be up to no good by only being found in immunocompromised patients and possibly helping the main virus evade the immune system.

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.

Fluke 87V Industrial Digital Multimeter

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

Radioimmunotherapy could extend lives of advanced lymphoma patients

Researchers developed a new treatment combining chemotherapy and radioimmunotherapy, which showed significant improvement in survival rates without recurrence. Patients who received this treatment had a 64% chance of survival and a 100% chance of survival at two-year follow-up.

New Loyola study on hepatitis C virus entry factor

Researchers at Loyola University Chicago Stritch School of Medicine identified the disruption of iron uptake receptor TfR1 in Hepatitis C virus (HCV) infected cells. The study shows that TfR1 mediates HCV entry and contributes to hepatic iron overload, a common complication in chronic HCV infections.

Women can be screened years later than men with 'virtual colonoscopy'

A new study found that virtual colonoscopy screenings can be safely delayed for women by 5-10 years compared to men, with minimal impact on cancer detection rates. The findings suggest that women under 55 may only need to undergo screening every 10 years, while those over 60 can wait up to 5 years longer.

Whitebark pine trees: Is their future at risk?

Research suggests that fragmented pine stands hinder seed production, reducing regeneration. Whitebark pines' viability depends on pollen release, wind, and proximity, making their future uncertain with dwindling gene pools.

Apple iPhone 17 Pro

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

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.

Research shows river dredging reduced fish numbers, diversity

Researchers found reduced populations of small, bottom-dwelling fishes like darters and increased sedimentation rates due to dredging alter habitats, leading to regime shifts in fish species. This study highlights the complex effects of human activities on aquatic ecosystems in large rivers.

A potential new target to thwart antibiotic resistance

Researchers discover gut viruses confer antibiotic resistance to bacteria by transferring genes that help them withstand multiple antibiotics, raising concerns about the emergence of superbugs and the need for a new approach to mitigate development of antibiotic resistance

Unfrozen mystery: H2O reveals a new secret

Researchers use revolutionary techniques to observe hydrogen atoms in ice at unprecedented pressures, revealing two different mechanisms of dissociation. The findings could alter our understanding of energy science and have implications for studying planetary interiors.

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.

Early exposure to bisphenol A might damage the enamel of teeth

Research suggests that early exposure to bisphenol A can damage the enamel of teeth in children, similar to a previously identified pathology known as MIH. The study found that low doses of BPA can cause mineral depletion and lead to hypomineralisation, making teeth more fragile and prone to cavities.

Effect of use of vegetable fat on risk of death in men with prostate cancer

Replacing carbohydrates with vegetable fat may be associated with a lower risk of death in men with nonmetastatic prostate cancer, according to a study published in JAMA Internal Medicine. The study found that men who consumed more vegetable fat had a lower risk of lethal prostate cancer and all-cause mortality.

China is outsourcing carbon within its own borders, UCI and others find

A study by UCI and others found that China is outsourcing carbon emissions within its own borders, with 80% of CO2 emissions from coastal provinces coming from poorer interior provinces. This domestic outsourcing is driven by pollution abatement targets, which prioritize reductions in more developed areas.

How cells get a skeleton

A study found that high levels of contractile stress in animal cells can lead to the formation of a condensed layer of filaments beneath the cell membrane. This new understanding provides insight into the cortical layer's structure and function.

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.

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.

Flowering at the right age

Researchers from Max Planck Institute find that Alpine rock cress measures age based on miR156 concentration, which decreases over time. This allows the plant to synchronize growth and flowering with environmental cues like vernalisation.

Pendulum swings back on 350-year-old mathematical mystery

Researchers develop mathematical approach to understand synchrony in medical and ecological conditions, with potential applications in epilepsy and predator-prey systems. The formula analyzes indirect coupling in complex systems, enabling predictions and tests through experiments.

To cut China's CO2 emissions, account for outsourcing

A new study finds that China's CO2 emissions are largely driven by products consumed in other provinces or countries, not just where they're produced. The researchers propose a consumption-based accounting approach to reduce emissions and promote fair distribution of responsibilities globally.

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.

Men with prostate cancer should eat healthy vegetable fats

A UC San Francisco-led study found that men with non-metastatic prostate cancer who consumed more healthy vegetable fats had a lower risk of developing lethal prostate cancer and dying from other causes. Replacing 10% of daily calories with these fats was associated with a 29% lower risk of lethal prostate cancer.

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.

British butterfly desperate for warm weather this summer

A recent study by the University of Exeter found that localized temperature fluctuations have a significant impact on silver-spotted skipper populations. The research suggests that saving habitats with diverse microclimates is crucial for conserving this species under changing climate conditions.

Software toolkit shapes models for personalized radionuclide therapy

A new software toolkit combines deformable anthropomorphic models with precision dosimetry to determine the most effective cancer-killing dose for every patient. This approach enables personalized radionuclide drug therapies, leading to improved outcomes and better survival rates.

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.

The dance of the atoms

Scientists at the Vienna University of Technology have observed and explained the dance of atoms on iron-oxide surfaces. They found that carbon monoxide is the partner responsible for rapid motion, which leads to clustering and reduces the effectiveness of catalysts. A hydroxyl coating of the surface can suppress this effect.

NASA animation sees Post-Tropical Storm Andrea speed away

Post-Tropical cyclone Andrea sped away from the Maine coast, passing through Atlantic Canada before entering the Northern Atlantic. The storm brought tropical-strength winds and precipitation to areas like Portland, Maine, with 0.99 inch of rain recorded.

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.

JCI early table of contents for June 10, 2013

Researchers found that HDAC3 is essential for DNA replication in hematopoietic progenitor cells and plays a critical role in Alzheimer's disease pathogenesis by binding to the cellular protein FCγRIIb, which activates cell stress and death pathways. The study also identified a link between FCγRIIb and memory impairment in AD patients.

Molecular imaging improves care for children with brain cancer

A new molecular imaging technique, F-18 FET, has been shown to be highly effective in detecting and differentiating brain lesions in children, with an accuracy rate of 94%. This study improves the clinical management of pediatric brain cancer patients by providing more accurate information about tumor progression and treatment.

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.

Molecular imaging finds hurdle for smokers' vaccine

A new study on an anti-nicotine vaccination found mixed results, with some patients experiencing a decrease in brain nicotine accumulation but others showing an increase. The study used PET imaging to test the vaccine's effectiveness, revealing that high-affinity antibodies were associated with decreased brain nicotine accumulation.

CT scans -- with radiation and cancer risk -- rose in children

A new study found that CT scan use increased by 15 years in children at nonprofit health care delivery systems, exposing them to higher cancer risk. Strategies like Image Gently aim to reduce this risk by lowering radiation doses and eliminating unnecessary scans.

Weapons testing data determines brain makes new neurons into adulthood

Researchers have found that a small portion of the human brain involved in memory makes new neurons well into adulthood, according to data from nuclear weapons testing of the 1950s and '60s. The study supports the importance of investigating the therapeutic potential of adult neurogenesis for age-related cognitive disorders.